Faucet water purifier

Abstract

The present invention provides a faucet water purifier for ultrafiltration treatment of raw water, wherein the faucet water purifier of the present invention includes a filter device and a control valve, wherein the filter device forms a first connecting opening, a second connecting opening and a third connecting opening, and the control valve includes a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first connecting opening of the filter device, the second opening of the control valve is connected to the second connecting opening of the filter device, and the fourth opening of the control valve is connected to the third connecting opening of the filter device.

Description

Technical Field

[0001] The present invention relates to a tap water purifier, in particular to a tap water purifier which can purify raw water (or tap water) and can use the raw water to clean ultrafiltration membrane fibers of a primary filter element. Background Art

[0002] With the continuous improvement of people's living standards and the growing emphasis on health, people's requirements for the quality of domestic water are also becoming higher and higher. In addition, the quality of tap water is also affected by the external environment and the water supply pipelines. For example, an increase in the sand content of the tap water source will lead to a deterioration in the water quality of the tap water. Long-term lack of cleaning of the tap water supply network and aging of the network can also affect the water quality of the tap water. Therefore, in many cases, tap water is not suitable for direct drinking. To address the above-mentioned tap water problems, a variety of household water purification devices have appeared on the market, such as ultrafiltration water purifiers, RO membrane water purifiers, and faucet water purifiers, to purify tap water. Among these water purification devices, faucet water purifiers are popular among consumers due to their advantages such as small size, easy installation and disassembly, and automatic purification of tap water under tap water pressure without the need for electricity. However, existing faucet water purifiers also have many drawbacks. First of all, the purification filter elements of most existing tap water purifiers, such as ceramic filter elements or activated carbon filter elements, purify tap water. Tap water purifiers using a single ceramic filter element or activated carbon filter element do not purify tap water thoroughly because of the large pore size of the ceramic filter element or activated carbon filter element. The purified water obtained is not suitable for direct drinking.

[0003] The Chinese invention patent application with application number 201811199228.2 discloses a faucet water purifier that uses microfiltration ceramics, activated carbon and ultrafiltration ceramics to purify tap water, wherein when the faucet water purifier treats tap water, it first uses microfiltration ceramics to microfilter the tap water, and then uses activated carbon to filter the purified water generated by the microfiltration ceramics. The purified water generated by the activated carbon is then further filtered by the ultrafiltration ceramics to generate ultrafiltration purified water. However, the faucet water purifier disclosed in this invention patent lacks a flushing mechanism, especially a mechanism for flushing ultrafiltration ceramics, which will cause a large amount of impurities and microorganisms to accumulate on the inner surface of the ultrafiltration ceramic membrane in a very short time, clogging the ultrafiltration ceramic membrane. Even the accumulation of a large number of microorganisms may cause the faucet water purifier provided by this invention patent to stink after a very short period of use.

[0004] Chinese utility model patent application number 201220080023.4 discloses a faucet water purifier that utilizes ceramic and ultrafiltration filter elements for two-stage tap water purification. The primary filter element provides preliminary purification of the tap water, while the secondary filter element further purifies the purified water produced by the primary filter element. However, the faucet water purifier provided by this utility model patent application lacks a mechanism for cleaning (or rinsing) the filter element, resulting in the faucet water purifier becoming smelly after a short period of use. Summary of the Invention

[0005] The primary purpose of the present invention is to provide a faucet water purifier. When the faucet water purifier is used to provide purified water, its primary filter element is suitable for purifying tap water. When the faucet water purifier is used to provide raw water, the raw water can simultaneously flush the ultrafiltration membrane fibers of the primary filter element, thereby increasing the service life of the primary filter element. It is understood that the faucet water purifier of the present invention can be directly installed on the faucet.

[0006] Another object of the present invention is to provide a faucet water purifier in which the purified water generated by the primary filter cartridge of the faucet water purifier of the present invention and the raw water are provided through different water outlets, thereby preventing the raw water from affecting the purified water. In other words, the channel through which the purified water generated by the primary filter cartridge of the faucet water purifier of the present invention flows is completely independent of the channel through which the raw water flows. Furthermore, the method of providing the purified water generated by the primary filter cartridge of the faucet water purifier of the present invention and the raw water is more consistent with consumer usage habits.

[0007] Another object of the present invention is to provide a faucet water purifier, wherein the faucet water purifier of the present invention further includes a terminal filter element to further filter the purified water produced by the first-level filter element of the faucet water purifier, thereby improving its taste.

[0008] Another object of the present invention is to provide a control valve for a faucet water purifier, wherein the control valve for a faucet water purifier of the present invention can control the faucet water purifier to provide tap water and purified water generated by a primary filter element.

[0009] Other objects and features of the present invention will be more fully apparent from the following detailed description and will be achieved by means of the combination of means and devices particularly pointed out in the appended claims.

[0010] According to one aspect of the present invention, a faucet water purifier of the present invention that can achieve the aforementioned objects and other objects and advantages includes:

[0011] a filter device, wherein the filter device forms a first communication opening, a second communication opening, and a third communication opening; and

[0012] A control valve, wherein the control valve includes a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first communicating opening of the filter device, the second opening of the control valve is connected to the second communicating opening of the filter device, the fourth opening of the control valve is connected to the third communicating opening of the filter device, and the raw water inlet of the valve body is suitable for being connected to a raw water source.

[0013] Further objects and advantages of the present invention will be fully apparent from an understanding of the following description and accompanying drawings.

[0014] These and other objects, features and advantages of the present invention will be more fully understood from the following detailed description, accompanying drawings and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a faucet water purifier according to an embodiment of the present invention.

[0016] Figure 2 1 is an assembly diagram of the faucet water purifier according to the embodiment of the present invention.

[0017] Figure 3A 2 is a front view of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0018] Figure 3B 2 is a cross-sectional view of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0019] Figure 3C 1 is a perspective view of a primary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0020] Figure 3D 4 is a perspective view of the secondary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0021] Figure 4A 2 is a perspective view of the base of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0022] Figure 4B 4 is a cross-sectional view of the base of the filter device of the faucet water purifier according to the embodiment of the present invention.

[0023] Figure 4C 2 is another cross-sectional view of the base of the filter device of the faucet water purifier according to the embodiment of the present invention.

[0024] Figure 4D2 is another cross-sectional view of the base of the filter device of the faucet water purifier according to the embodiment of the present invention.

[0025] Figure 4E 2 is another cross-sectional view of the base of the filter device of the faucet water purifier according to the embodiment of the present invention.

[0026] Figure 5A 4 is a cross-sectional view of the base and terminal filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0027] Figure 5B 4 is a cross-sectional view of the terminal filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0028] Figure 5C This is another cross-sectional view of the terminal filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0029] Figure 6A 1 is a perspective view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the raw water supply channel.

[0030] Figure 6B 1 is another perspective view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the raw water supply channel.

[0031] Figure 6C 1 is another perspective view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first opening, the second opening, the fourth opening and the fifth opening of the valve body.

[0032] Figure 6D This is another three-dimensional view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water inlet of the valve body.

[0033] Figure 6E 1 is another perspective view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third opening and the sixth opening of the valve body.

[0034] Figure 6F 1 is a perspective view of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0035] Figure 6G 1 is a bottom view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0036] Figure 7A4 is a cross-sectional view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the second channel, the fourth channel, the second opening and the fourth opening.

[0037] Figure 7B 1 is another cross-sectional view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the fifth channel, the first opening and the fifth opening.

[0038] Figure 7C 1 is another cross-sectional view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third channel and the third opening.

[0039] Figure 7D 1 is another cross-sectional view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water supply channel, the sixth opening and the raw water inlet.

[0040] Figure 8A 2 is a cross-sectional view of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0041] Figure 8B 1 is a perspective view of the valve body of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the guide plate of the faucet water purifier of the present invention is arranged on the valve body of the planar valve.

[0042] Figure 8C 3D is a perspective view of the guide plate of the faucet water purifier according to the embodiment of the present invention.

[0043] Figure 8D This is another perspective view of the guide plate of the faucet water purifier according to the embodiment of the present invention.

[0044] Figure 9A 2 is a perspective view of the fixing device of the faucet water purifier according to the embodiment of the present invention.

[0045] Figure 9B 4 is a cross-sectional view of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the fixing device is disposed in the valve cavity of the planar valve.

[0046] Figure 9C 1 is a perspective view of the fixing portion of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first sealing groove of the fixing portion.

[0047] Figure 9D This is another three-dimensional view of the fixing portion of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

[0048] Figure 9E Shown is the fixing portion of the fixed valve disc of the valve core of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve disc is disposed on the fixing portion.

[0049] Figure 9F 4 is a perspective view of a first sealing member of a sealing assembly of a faucet water purifier according to an embodiment of the present invention.

[0050] Figure 9G 4 is a perspective view of the second sealing member of the sealing assembly of the faucet water purifier according to the embodiment of the present invention.

[0051] Figure 9H 1 is a cross-sectional view of the fixing bracket of the fixing device of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the limiting groove of the fixing bracket.

[0052] Figure 10A 3D is a perspective view of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0053] Figure 10B 1 is a top view of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0054] Figure 10C 1 is a bottom view of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0055] Figure 10D 3D is a perspective view of the movable valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0056] Figure 10E 1 is a top view of the movable valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0057] Figure 10F 1 is a bottom view of the movable valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0058] Figure 11A 3 is a structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the first working position, and the arrow in the figure points to the direction of water flow.

[0059] Figure 11B 3 is a structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the second working position, and the arrow in the figure points to the direction of water flow.

[0060] Figure 11C3 is a structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the third working position, and the arrow in the figure points to the direction of water flow.

[0061] Figure 11D 3 is a schematic structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the fourth working position, and the arrow in the figure points to the direction of water flow.

[0062] Figure 11E 3 is a structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the fifth working position, and the arrow in the figure points to the direction of water flow.

[0063] Figure 11F 3 is a structural diagram of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the sixth working position, and the arrow in the figure points to the direction of water flow.

[0064] Figure 12A 1 is a structural schematic diagram of the fixed valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0065] Figure 12B 1 is a structural schematic diagram of the movable valve plate of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting channel of the movable valve plate.

[0066] Figure 13A This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its first working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0067] Figure 13B This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its second working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0068] Figure 13C This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its third working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0069] Figure 13DThis is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its fourth working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0070] Figure 13E This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its fifth working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0071] Figure 13F This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its sixth working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0072] Figure 14A It is a front view of an optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0073] Figure 14B 4 is a cross-sectional view of an optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0074] Figure 14C It is a three-dimensional diagram of the optional secondary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0075] Figure 14D 4 is a cross-sectional view of the optional secondary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0076] Figure 15A 4 is a perspective view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0077] Figure 15B 4 is a cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0078] Figure 15C 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0079] Figure 15D 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0080] Figure 15E2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0081] Figure 16A It is a front view of another optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0082] Figure 16B 4 is a cross-sectional view of an optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0083] Figure 16C It is a three-dimensional diagram of the optional secondary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0084] Figure 16D 4 is a cross-sectional view of the optional secondary filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0085] Figure 17A 4 is a perspective view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0086] Figure 17B 4 is a cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0087] Figure 17C 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0088] Figure 17D 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0089] Figure 17E 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0090] Figure 18A It is a front view of another optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0091] Figure 18B 4 is a cross-sectional view of an optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0092] Figure 18C It is a three-dimensional diagram of the optional implementation of the first-level filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0093] Figure 18DIt is a cross-sectional view of the optional implementation of the first-stage filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0094] Figure 19A 4 is a perspective view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0095] Figure 19B 4 is a cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0096] Figure 19C 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0097] Figure 19D 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0098] Figure 19E 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0099] Figure 20A It is a front view of another optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0100] Figure 20B 4 is a cross-sectional view of an optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0101] Figure 20C It is a three-dimensional diagram of the optional implementation of the first-level filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0102] Figure 20D It is a cross-sectional view of the optional implementation of the first-stage filter element of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0103] Figure 21A 4 is a perspective view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0104] Figure 21B 4 is a cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0105] Figure 21C 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0106] Figure 21D2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0107] Figure 21E 2 is another cross-sectional view of the base of the optional implementation of the filtering device of the faucet water purifier according to the embodiment of the present invention.

[0108] Figure 22 This is an assembly diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0109] Figure 23A 1 is a perspective view of an optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows a first channel, a second channel, a third channel, a fourth channel, a fifth channel and a raw water supply channel.

[0110] Figure 23B This is another stereoscopic view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel and the second sealing member.

[0111] Figure 23C This is another stereoscopic view of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the third opening, the sixth opening and the raw water inlet of the valve body.

[0112] Figure 23D 1 is another stereoscopic view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first opening, the second opening, the fourth opening and the fifth opening of the valve body.

[0113] Figure 23E 1 is another perspective view of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water inlet of the valve body.

[0114] Figure 23F 4 is a front view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0115] Figure 23G 4 is a side view of an alternative implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0116] Figure 23H 1 is a top view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0117] Figure 23I 1 is a bottom view of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0118] Figure 24A 4 is a cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the fifth channel, the first opening and the fifth opening.

[0119] Figure 24B 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the second channel and the second opening.

[0120] Figure 24C 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third channel and the third opening.

[0121] Figure 24D 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the fourth channel and the fourth opening.

[0122] Figure 24E 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water supply channel, the sixth opening and the raw water inlet.

[0123] Figure 25A 4 is a front view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0124] Figure 25B 4 is a cross-sectional view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0125] Figure 25C 1 is another perspective view of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0126] Figure 25D It is a three-dimensional view of the guide plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0127] Figure 25E This is another stereoscopic view of the optional implementation of the guide plate of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0128] Figure 26A It is a three-dimensional view of the optional fixing device of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0129] Figure 26B 4 is a cross-sectional view of the fixing device of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0130] Figure 26CIt is a three-dimensional view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first sealing groove of the fixing portion.

[0131] Figure 26D This is another stereoscopic view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

[0132] Figure 26E It is a three-dimensional view of the high end portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve plate is arranged on the fixed portion of the fixed valve plate.

[0133] Figure 26F 4 is a perspective view of a first sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0134] Figure 26G 4 is a perspective view of a second sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0135] Figure 27A It is a three-dimensional view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0136] Figure 27B 1 is a top view of the fixed valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0137] Figure 27C It is a bottom view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0138] Figure 27D It is a three-dimensional view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0139] Figure 27E It is a top view of the movable valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0140] Figure 27F It is a bottom view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0141] Figure 28A This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the first working position, and the arrow in the figure points to the direction of water flow.

[0142] Figure 28B This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the second working position, and the arrow in the figure points to the direction of water flow.

[0143] Figure 28C This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the third working position, and the arrow in the figure points to the direction of water flow.

[0144] Figure 29A It is a structural schematic diagram of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0145] Figure 29B 1 is a structural schematic diagram of an optional movable valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting channel of the movable valve plate.

[0146] Figure 30A This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its first working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0147] Figure 30B This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its second working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0148] Figure 30C This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its third working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0149] Figure 31 This is an assembly diagram of another optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0150] Figure 32A It is a stereoscopic view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel and the raw water inlet channel.

[0151] Figure 32BThis is another stereoscopic view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel, the raw water inlet channel and the second sealing member.

[0152] Figure 32C 1 is another stereoscopic view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first opening, the second opening, the fourth opening and the fifth opening of the valve body.

[0153] Figure 32D 1 is another perspective view of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water inlet of the valve body.

[0154] Figure 32E 1 is another perspective view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third opening and the sixth opening of the valve body.

[0155] Figure 33A 4 is a cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the fifth channel, the first opening and the fifth opening.

[0156] Figure 33B 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the second channel and the second opening.

[0157] Figure 33C 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third channel and the third opening.

[0158] Figure 33D 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the fourth channel and the fourth opening.

[0159] Figure 33E 1 is another cross-sectional view of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water supply channel, the sixth opening, the raw water inlet and the raw water inlet channel.

[0160] Figure 34A 4 is a front view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0161] Figure 34B 4 is a cross-sectional view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0162] Figure 34C 3D is a perspective view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0163] Figure 34D It is a three-dimensional view of the guide plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0164] Figure 34E This is another stereoscopic view of the optional implementation of the guide plate of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0165] Figure 35A 4 is a cross-sectional view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0166] Figure 35B It is a three-dimensional view of the fixing portion of the fixed valve plate of the valve core of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first sealing groove of the fixing portion.

[0167] Figure 35C It is a three-dimensional view of the fixing portion of the fixed valve plate of the valve core of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

[0168] Figure 35D Shown is the high end portion of the fixed valve disc of the valve core of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve disc is arranged on the fixed portion of the fixed valve disc.

[0169] Figure 35E 4 is a perspective view of a first sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0170] Figure 35F 4 is a perspective view of a second sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0171] Figure 36A It is a three-dimensional view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0172] Figure 36B 1 is a top view of the fixed valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0173] Figure 36C It is a bottom view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0174] Figure 36DIt is a three-dimensional view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0175] Figure 36E It is a top view of the movable valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0176] Figure 36F It is a bottom view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0177] Figure 37A This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the first working position, and the arrow in the figure points to the direction of water flow.

[0178] Figure 37B This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the second working position, and the arrow in the figure points to the direction of water flow.

[0179] Figure 37C This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the third working position, and the arrow in the figure points to the direction of water flow.

[0180] Figure 38A It is a structural schematic diagram of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0181] Figure 38B 1 is a structural schematic diagram of an optional movable valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting channel of the movable valve plate.

[0182] Figure 39A This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its first working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0183] Figure 39B This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its second working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0184] Figure 39CThis is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its third working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0185] Figure 40A It is a three-dimensional view of another optional implementation of the valve body of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the raw water supply channel.

[0186] Figure 40B This is another stereoscopic view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel and the second sealing member.

[0187] Figure 40C This is another stereoscopic view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first opening, the second opening, the fourth opening and the fifth opening of the valve body.

[0188] Figure 40D This is another stereoscopic view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water inlet of the valve body.

[0189] Figure 40E This is another stereoscopic view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third opening and the sixth opening of the valve body.

[0190] Figure 40F 1 is a top view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0191] Figure 40G It is a bottom view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0192] Figure 41A 4 is a cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the fifth channel, the first opening and the fifth opening.

[0193] Figure 41B 1 is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the second channel, the fourth channel, the second opening and the fourth opening.

[0194] Figure 41C 1 is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third channel and the third opening.

[0195] Figure 41D 1 is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water supply channel, the sixth opening and the raw water inlet.

[0196] Figure 42A 4 is a cross-sectional view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0197] Figure 42B 3D is a perspective view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0198] Figure 42C It is a three-dimensional view of the guide plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0199] Figure 42D This is another stereoscopic view of the optional implementation of the guide plate of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0200] Figure 43A It is a three-dimensional view of the optional fixing device of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0201] Figure 43B 4 is a cross-sectional view of an optional fixing device for a flat valve of a faucet water purifier according to an embodiment of the present invention.

[0202] Figure 43C It is a three-dimensional view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first sealing groove of the fixing portion.

[0203] Figure 43D This is another stereoscopic view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

[0204] Figure 43E Shown is a high end portion of a fixed valve disc of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve disc is arranged on a fixed portion of the fixed valve disc.

[0205] Figure 43F 4 is a perspective view of a first sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0206] Figure 43G 4 is a perspective view of a second sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0207] Figure 44A It is a three-dimensional view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0208] Figure 44B 1 is a top view of the fixed valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0209] Figure 44C It is a bottom view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0210] Figure 44D It is a three-dimensional view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0211] Figure 44E It is a top view of the movable valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0212] Figure 44F It is a bottom view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0213] Figure 45A This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the first working position, and the arrow in the figure points to the direction of water flow.

[0214] Figure 45B This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the second working position, and the arrow in the figure points to the direction of water flow.

[0215] Figure 45C This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the third working position, and the arrow in the figure points to the direction of water flow.

[0216] Figure 46A It is a structural schematic diagram of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0217] Figure 46B1 is a structural schematic diagram of an optional movable valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting channel of the movable valve plate.

[0218] Figure 47A This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its first working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0219] Figure 47B This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its second working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0220] Figure 47C This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its third working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0221] Figure 48A It is a three-dimensional view of another optional implementation of the valve body of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel and the raw water inlet channel.

[0222] Figure 48B This is another stereoscopic view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the second channel, the third channel, the fourth channel, the fifth channel, the raw water supply channel, the raw water inlet channel and the second sealing member.

[0223] Figure 48C This is another stereoscopic view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first opening, the second opening, the fourth opening and the fifth opening of the valve body.

[0224] Figure 48D This is another stereoscopic view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water inlet of the valve body.

[0225] Figure 48EThis is another stereoscopic view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third opening and the sixth opening of the valve body.

[0226] Figure 48F 1 is a top view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0227] Figure 48G It is a bottom view of the valve body of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0228] Figure 49A 4 is a cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the first channel, the fifth channel, the first opening and the fifth opening.

[0229] Figure 49B 1 is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the second channel, the fourth channel, the second opening and the fourth opening.

[0230] Figure 49C 1 is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the third channel and the third opening.

[0231] Figure 49D This is another cross-sectional view of the valve body of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention, wherein the figure shows the raw water supply channel, the sixth opening, the raw water inlet and the raw water inlet channel.

[0232] Figure 50A 4 is a cross-sectional view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0233] Figure 50B 3D is a perspective view of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0234] Figure 50C It is a three-dimensional view of the guide plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0235] Figure 50D This is another stereoscopic view of the optional implementation of the guide plate of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0236] Figure 51A It is a three-dimensional view of the optional fixing device of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0237] Figure 51B 4 is a cross-sectional view of a fixing device of an optional embodiment of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0238] Figure 51C It is a three-dimensional view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the first sealing groove of the fixing portion.

[0239] Figure 51D This is another stereoscopic view of the fixing portion of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the view shows the second sealing groove of the fixing portion.

[0240] Figure 51E Shown is a high end portion of a fixed valve disc of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the high end portion of the fixed valve disc is arranged on a fixed portion of the fixed valve disc.

[0241] Figure 51F 4 is a perspective view of a first sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0242] Figure 51G 4 is a perspective view of a second sealing member of the optional sealing assembly of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0243] Figure 52A It is a three-dimensional view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0244] Figure 52B 1 is a top view of the fixed valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0245] Figure 52C It is a bottom view of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0246] Figure 52D It is a three-dimensional view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0247] Figure 52E It is a top view of the movable valve plate of the optional implementation of the planar valve of the faucet water purifier according to the embodiment of the present invention.

[0248] Figure 52F It is a bottom view of the movable valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0249] Figure 53AThis is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the first working position, and the arrow in the figure points to the direction of water flow.

[0250] Figure 53B This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the second working position, and the arrow in the figure points to the direction of water flow.

[0251] Figure 53C This is a structural diagram of an optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the faucet water purifier shown in the figure is in the third working position, and the arrow in the figure points to the direction of water flow.

[0252] Figure 54A It is a structural schematic diagram of the fixed valve plate of the optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention.

[0253] Figure 54B 1 is a structural schematic diagram of an optional movable valve plate of the flat valve of the faucet water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting channel of the movable valve plate.

[0254] Figure 55A This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its first working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0255] Figure 55B This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its second working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve.

[0256] Figure 55C This is a schematic diagram of the communication between the channel of the movable valve plate and the channel of the fixed valve plate of the above-mentioned optional implementation of the flat valve of the faucet water purifier according to the embodiment of the present invention when the flat valve is in its third working position, wherein the shaded portion in the figure shows the channels connecting the movable valve plate and the fixed valve plate of the flat valve. DETAILED DESCRIPTION

[0257] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0258] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0259] It is understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0260] Reference to the accompanying drawings Figures 1 to 13F A faucet water purifier according to an embodiment of the present invention is illustrated, wherein the faucet water purifier of the present invention includes a control valve 10 and a filter device 20, wherein the control valve 10 is configured to control the flow of water, such as controlling raw water (or tap water) to be provided to the filter device 20 and controlling the filter device 20 to process the raw water to generate or produce purified water.

[0261] As shown in the attached figure Figures 1 to 13FAs shown, the filtering device 20 of the faucet water purifier according to an embodiment of the present invention includes a housing 21, a primary filter element 22 and a secondary filter element 23, wherein the housing 21 forms a first accommodating cavity 210, and the primary filter element 22 forms a second accommodating cavity 220, wherein the primary filter element 22 is arranged in the first accommodating cavity 210 of the housing 21, and the secondary filter element 23 is arranged in the second accommodating cavity 220 of the primary filter element 22, and the housing 21 and the primary filter element 22 form a raw water channel 2101 located therebetween, the primary filter element 22 and the secondary filter element 23 form a clean water channel 2201 located therebetween (the clean water channel 2201 can be regarded as a part of the second accommodating cavity 220), and the secondary filter element 23 has a clean water outlet 2301. Accordingly, since the secondary filter element 23 is disposed within the second accommodating chamber 220 of the primary filter element 22, when raw water flows from the raw water channel 2101 under the action of water pressure and is processed by the primary filter element 22, the purified water produced by the primary filter element 22 can flow to the secondary filter element 23 under the action of water pressure and be processed by the secondary filter element 23 to obtain cleaner secondary purified water. The secondary purified water then flows out of the purified water outlet 2301 under the action of water pressure to be provided. Preferably, the primary filter element 22 is a ceramic filter element, and the secondary filter element 23 is an external pressure ultrafiltration filter element, wherein the ultrafiltration membrane filaments 231 of the secondary filter element 23 are disposed within the second accommodating chamber 220 of the primary filter element 22, thereby forming the purified water channel 2201 between the ultrafiltration membrane filaments 231 of the secondary filter element 23 and the primary filter element 22. Therefore, the purified water produced by the primary filter element 22 can be further ultrafiltered by the secondary filter element 23 under the action of water pressure, thereby obtaining even cleaner purified water (or ultrafiltration filtered water). It is understood that the primary filter element can also be a filter element made of other materials, or a composite filter element made of multiple materials, for example, a composite filter element composed of any two or more of ceramic, carbon fiber, PP cotton, and activated carbon particles.

[0262] As shown in the attached figure Figures 1 to 13FAs shown, the filter device 20 of the faucet water purifier according to an embodiment of the present invention has a first communicating opening 201, a second communicating opening 202 and a third communicating opening 203, wherein the first communicating opening 201 of the filter device 20 is connected to the raw water channel 2101 of the filter device 20, so that the control valve 10 can provide raw water to the filter device 20 through the first communicating opening 201, and the second communicating opening 202 of the filter device 20 is connected to the clean water channel 2201, so that the purified water generated by the primary filter element 22 treating the raw water can flow to a second water outlet 200 of the faucet water purifier of the present invention under the control of the control valve 10 and be provided to the user, and the third communicating opening 203 of the filter device 20 is connected to the clean water outlet 2301 of the secondary filter element 23, so that the purified water generated by the secondary filter element 23 can flow out through the third communicating opening 203 and be provided to the user through a first water outlet 100 of the faucet water purifier of the present invention under the control of the control valve 10. Preferably, the secondary filter element 23 of the filter device 20 of the faucet water purifier of the present invention is an external pressure ultrafiltration filter element. Accordingly, each ultrafiltration membrane filament 231 of the secondary filter element 23 forms a membrane filament channel 2310, and the membrane filament channel 2310 of each ultrafiltration membrane filament 231 is connected to the purified water outlet 2301 of the secondary filter element 23, so that the purified water produced by each ultrafiltration membrane filament 231 of the secondary filter element 23 can flow to the third communication opening 203 of the filter device 20 under the action of water pressure.

[0263] As shown in the attached figure Figures 1 to 13FAs shown, accordingly, when the filter device 20 of the faucet water purifier according to an embodiment of the present invention is used to treat raw water, the user can control the raw water to flow to the first communication opening 201 of the filter device 20 through the control valve 10. Under the action of water pressure, the raw water flows to the raw water channel 2101 of the filter device 20. Under the action of water pressure, the raw water is treated by the primary filter element 22, and the purified water generated flows to the clean water channel 2201. At this time, if the purified water in the clean water channel 2201 can flow freely through the second communication opening 202 of the filter device 20 under the control of the control valve 10, and the purified water generated by the secondary filter element 23 cannot flow freely to the third communication opening 203, then the purified water generated by the primary filter element 22 will flow out of the second communication opening 202 under the action of water pressure and be provided. Accordingly, the faucet water purifier according to an embodiment of the present invention is now in a filtering working state. On the other hand, if the purified water in the purified water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the control valve 10, and the purified water produced by the secondary filter element 23 can flow freely to the third communication opening 203, then the purified water produced by the primary filter element 22 will be further purified by the secondary filter element 23 under the action of water pressure, and the purified water produced by the secondary filter element 23 will flow out from the third communication opening 203 and be provided. Accordingly, at this time, the faucet water purifier according to the embodiment of the present invention is in an ultrafiltration working state. As shown in the accompanying drawings Figures 1 to 13F As shown, further, the faucet water purifier according to an embodiment of the present invention also has a raw water supply working state, wherein when the faucet water purifier of the present invention is in the raw water supply working state, the user can control the raw water to flow directly to a raw water outlet through the control valve 10 to be provided, without passing through the filter device 20 and being purified by it.

[0264] It is worth noting that when the secondary filter element 23 of the filter device 20 of the faucet water purifier of the present invention is an external pressure ultrafiltration filter element, and the purified water produced by the primary filter element 22 can flow freely out of the second communication opening 202 of the filter device 20, when the purified water produced by the primary filter element 22 flows out through the second communication opening 202 of the filter device 20, the purified water produced by the primary filter element 22 will flow through the ultrafiltration membrane filaments 231 of the secondary filter element 23, thereby making the ultrafiltration membrane filaments 231 of the secondary filter element 23 be rinsed by the purified water produced by the primary filter element 22. In other words, at this time, the filter device 20 of the faucet water purifier of the present invention allows for the purification water produced by the primary filter element 22 to be provided while further utilizing the purified water produced by the primary filter element 22 to clean the ultrafiltration membrane filaments 231 of the secondary filter element 23. It is known to those skilled in the art that the faucet water purifier directly installed on the tap is relatively small in size due to the limitations of the space in which it is used. When a faucet water purifier utilizes an ultrafiltration filter element, particularly one with ultrafiltration membrane filaments as its primary filtering element, the ultrafiltration filter element can easily become smelly and unusable due to the accumulation of tap water impurities, such as microorganisms, adhering to the surface of the ultrafiltration membrane filaments. The filtration device 20 of the faucet water purifier of the present invention allows for the purified water produced by the primary filter element 22 to be simultaneously provided while also using the purified water produced by the primary filter element 22 to clean the surface of the ultrafiltration membrane filaments 231 of the secondary filter element 23. This prevents microorganisms and other impurities in tap water from accumulating on the secondary filter element 23, preventing it from becoming smelly and unusable. In other words, the ingenious structural design of the filtration device 20 of the faucet water purifier of the present invention solves the problem of conventional faucet water purifiers using ultrafiltration filter elements (or ultrafiltration membrane filaments) to filter water, which is prone to impurity accumulation and inability to be promptly removed, resulting in smelly water. This improves the filtration efficiency of the ultrafiltration membrane filaments 231 of the secondary filter element 23 and extends the service life of the secondary filter element 23. More importantly, due to the small size of the faucet water purifier, with the structure of the traditional faucet water purifier, when it uses the ultrafiltration filter element to treat raw water such as tap water, it will become clogged in a short time. When the faucet water purifier of the present invention uses the purified water produced by the first-level filter element 22, the flushing effect of the ultrafiltration membrane filament 231 of the second-level filter element 23 significantly improves the problem of impurities accumulating and being unable to be discharged in time when the traditional faucet water purifier uses the ultrafiltration filter element (or ultrafiltration membrane filament) to filter water, thereby making it possible for the faucet water purifier to use the ultrafiltration filter element to filter water. The greater significance of the faucet water purifier of the present invention is that it may enable consumers to get rid of the traditional desktop water purifier that is large in size and expensive. In addition, since the first-level filter element 22 of the faucet water purifier of the present invention is preferably a ceramic filter element, although the purified water produced by its filtration is not suitable for direct drinking, it also performs preliminary filtration and purification on the raw water and can be used for washing vegetables, washing, etc.

[0265] As shown in the attached figure Figures 1 to 13FAs shown, the filter device 20 of the faucet water purifier according to an embodiment of the present invention further includes a base 24, wherein the secondary filter element 23 is disposed on the base 24, and the base 24 forms a first water chamber 2401, wherein the first water chamber 2401 of the base 24 is respectively connected to the third communication opening 203 of the filter device 20 and the purified water outlet 2301 of the secondary filter element 23. In other words, the membrane fiber channels 2310 of the ultrafiltration membrane fibers 231 of the secondary filter element 23 are connected to the first water chamber 2401 of the base 24 and the third communication opening 203 of the filter device 20 through the purified water outlet 2301 of the secondary filter element 23, so that the secondary purified water produced by the secondary filter element 23 can flow out of the third communication opening 203. Preferably, the third communication opening 203 is disposed on the base 24. More preferably, the secondary filter element 23 is water-tightly disposed on the base 24 , and the first water chamber 2401 is formed between the secondary filter element 23 and the base 24 .

[0266] As shown in the attached figure Figures 1 to 13F As shown, the primary filter element 22 of the filter device 20 of the faucet water purifier according to an embodiment of the present invention is disposed on the base 24, and the base 24 further defines a second water chamber 2402. The second water chamber 2402 of the base 24 is connected to the second communication opening 202 of the filter device 20 and the purified water channel 2201, respectively. In other words, the purified water channel 2201 of the filter device 20 is connected to the second communication opening 202 of the filter device 20 through the second water chamber 2402 of the base 24, so that the purified water produced by the primary filter element 22 can flow out of the second communication opening 202. Preferably, the second communication opening 202 is disposed on the base 24.

[0267] As shown in the attached figure Figures 1 to 13F As shown, the primary filter element 22 of the filter device 20 of the faucet water purifier according to an embodiment of the present invention is water-tightly arranged on the base 24 to prevent the raw water in the raw water channel 2101 from flowing into the purified water channel 2201. Furthermore, the primary filter element 22 is detachably arranged on the base 24 so that the primary filter element 22 can be replaced. Optionally, the primary filter element 22 is water-tightly arranged on the housing 21 so that the raw water can only flow in the raw water channel 2101. Optionally, the primary filter element 22 is detachably arranged on the housing 21. Optionally, the primary filter element 22 is integrally formed on the base 24. Optionally, the primary filter element 22 is integrally formed on the housing 21.

[0268] As shown in the attached figure Figures 1 to 13FAs shown, the secondary filter element 23 of the filter device 20 of the faucet water purifier according to an embodiment of the present invention further includes a housing 232, wherein the ultrafiltration membrane filaments 231 of the secondary filter element 23 are disposed within the housing 232, and the housing 232 has at least one water inlet 2320, wherein the water inlet 2320 of the housing 232 communicates with the interior and exterior spaces of the housing 232, so that when the faucet water purifier of the present invention is in the ultrafiltration working state, the purified water produced by the primary filter element 22 can flow to the ultrafiltration membrane filaments 231 through the water inlet 2320 of the housing 232 under the action of water pressure. Therefore, the water inlet 2320 of the housing 232 of the secondary filter element 23 can be regarded as a part of the purified water channel 2201 of the filter device 20.

[0269] As shown in the attached figure Figures 1 to 13F As shown, the base 24 of the filter device 20 of the faucet water purifier according to an embodiment of the present invention includes a base portion 241 and a first partition 242, wherein the first partition 242 is disposed on and extends from the base portion 241. The first partition 242 is disposed between the first water chamber 2401 and the second water chamber 2402, thereby separating the first water chamber 2401 from the second water chamber 2402. Preferably, the base 24 further includes a second partition 243 disposed on and extends from the base portion 241. The second water chamber 2402 is disposed between the first partition 242 and the second partition 243. The first partition 242 encloses and forms the first water chamber 2401. More preferably, the first partition 242 and the second partition 243 are both annular, and the second partition 243 is disposed outside the first partition 242.

[0270] As shown in the attached figure Figures 1 to 13F As shown, according to an embodiment of the present invention, the purified water channel 2201 of the filter device 20 of the faucet water purifier, the second water chamber 2402 of the base 24, and the second communication opening 202 of the filter device 20 form a primary purified water channel, and the membrane thread channel 2310 of the ultrafiltration membrane thread 231 of the secondary filter element 23, the purified water outlet 2301 of the secondary filter element 23, the first water chamber 2401 of the base 24, and the third communication opening 203 of the filter device 20 form a secondary purified water channel. It can be understood that the primary purified water channel and the secondary purified water channel are separated to prevent the water in the primary purified water channel and the secondary purified water channel from mixing. In other words, the primary purified water channel and the secondary purified water channel are separated to prevent the purified water produced by the primary filter element 22 from mixing with the purified water produced by the secondary filter element 23.

[0271] As shown in the attached figure Figures 1 to 13FAs shown, the first communication opening 201 of the filter device 20 of the faucet water purifier according to an embodiment of the present invention is preferably provided on the base 24. Optionally, the first communication opening 201 of the filter device 20 is provided on the housing 21. Figures 1 to 13F As shown, the housing 21 of the filtering device 20 of the faucet water purifier according to an embodiment of the present invention is preferably disposed on the edge of the base 24. Preferably, the housing 21 and the base 24 are integrally formed.

[0272] As shown in the attached figure Figures 5A to 5C As shown, the base 24 of the filtering device 20 of the faucet water purifier according to an embodiment of the present invention further includes a water supply portion 245 , wherein the water supply portion 245 is disposed and extended from the base portion 241 , wherein the water supply portion 245 forms the first water outlet 100 .

[0273] As shown in the attached figure Figures 5A to 5C As shown, further, the filtering device 20 of the faucet water purifier according to an embodiment of the present invention further includes a terminal filter element 25, the base portion 241 of the base 24 and the water supply portion 245 form a purification chamber 2450 located therebetween, wherein the terminal filter element 25 is disposed within the purification chamber 2450, wherein the purification chamber 2450 is disposed in communication with a fifth opening 1105 of the control valve 10 and the first water outlet 100, respectively, so that the terminal filter element 25 can further filter the purified water produced by the secondary filter element 23 before it is provided to the user through the first water outlet 100. In other words, the terminal filter element 25 is disposed upstream of the first water outlet 100 and downstream of the fifth opening 1105 of the control valve 10 to further filter the purified water produced by the secondary filter element 23 before providing it to the user. Those skilled in the art will appreciate that the terminal filter element 25 can be made of carbon fiber or other filter materials to improve the taste of water. Preferably, the water supply portion 245 is detachably mounted on the base portion 241 of the base 24, and the terminal filter element 25 is detachably mounted in the purification chamber 2450, thereby enabling the terminal filter element 25 to be replaced. More preferably, the water supply portion 245 is detachably screwed to the base portion 241 of the base 24. Alternatively, the water supply portion 245 is detachably snapped onto the base portion 241 of the base 24.

[0274] As shown in the attached figure Figures 3A to 4EAs shown, the base 24 of the faucet water purifier according to an embodiment of the present invention further has a conducting portion 246, wherein the conducting portion 246 has a first conducting channel 2461, a second conducting channel 2462 and a third conducting channel 2463, wherein the first conducting channel 2461 is arranged to be connected to the first connecting opening 201 and the raw water channel 2101 respectively, the second conducting channel 2462 is arranged to be connected to the second connecting opening 202 and the second water chamber 2402 respectively, and the third conducting channel 2463 is arranged to be connected to the third connecting opening 203 and the first water chamber 2401 respectively. Furthermore, the conducting portion 246 has a purified water supply channel 2464, wherein the purified water supply channel 2464 is respectively connected to the fifth opening 1105 and the first water outlet 100, so that the purified water produced by the secondary filter element 23 of the purification device of the faucet water purifier of the present invention can flow out of the fifth opening 1105 of the control valve 10 and flow to the first water outlet 100 through the purified water supply channel 2464. Preferably, the first conducting channel 2461 is provided between the first communication opening 201 and the raw water channel 2101, the second conducting channel 2462 is provided between the second communication opening 202 and the second water chamber 2402, the third conducting channel 2463 is provided between the third communication opening 203 and the first water chamber 2401, and the purified water supply channel 2464 is provided between the fifth opening 1105 and the first water outlet 100. More preferably, the clean water supply channel 2464 is respectively connected to the fifth opening 1105 and the purification chamber 2450, so that the clean water supply channel 2464 can be connected to the first water outlet 100 through the purification chamber 2450. Preferably, the first water outlet 100 includes a plurality of water outlet holes.

[0275] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention includes a valve body 11 and a valve core 12, wherein the valve body 11 forms a valve cavity 110, a first opening 1101, a second opening 1102, a third opening 1103, a fourth opening 1104, a fifth opening 1105 and a raw water inlet 1107, wherein the valve core 12 is disposed in the valve cavity 110, wherein the first opening 1101 of the valve body 11 is adapted to communicate with the first communication opening 201 of the filter device 20, The second opening 1102 of the valve body 11 is suitable for being connected to the second communicating opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is suitable for being connected to the third communicating opening 203 of the filter device 20, the fifth opening 1105 of the valve body 11 is suitable for being connected to a first water outlet 100, the third opening 1103 of the valve body 11 is suitable for being connected to a second water outlet 200, and the raw water inlet 1107 of the valve body 11 is suitable for being connected to a raw water source (for example, a tap outlet).

[0276] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention has a first operating position. When the control valve 10 is in the first operating position, the valve core 12 of the control valve 10 forms a first communication channel 1001 and a second communication channel 1002. The first communication channel 1001 is connected to the first opening 1101 of the valve body 11 and the raw water inlet 1107, respectively, and the second communication channel 1002 is connected to the fourth opening 1104 and the fifth opening 1105 of the valve body 11, respectively. Furthermore, when the control valve 10 is in the first operating position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected. In other words, when the control valve 10 is in the first operating position, the second opening 1102 and the third opening 1103 of the valve body 11 are unable to communicate. Accordingly, when the control valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the control valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the control valve 10 is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the control valve 10. Therefore, the purified water produced by the primary filter element 22 will be further purified by the secondary filter element 23, and the purified water produced by the secondary filter element 23 flows out from the third connecting opening 203, and flows through the fourth opening 1104, the second connecting channel 1002 and the fifth opening 1105 in sequence, so that the purified water produced by the secondary filter element 23 can be provided through the first water outlet 100 connected to the fifth opening 1105. Preferably, the secondary filter element 23 is an ultrafiltration filter element. Accordingly, the purified water produced by the secondary filter element 23 can be drunk directly. It can be understood that when the control valve 10 of the faucet water purifier according to an embodiment of the present invention is controlled to be in the first working position, the faucet water purifier of the present invention is controlled to be in its ultrafiltration working state.

[0277] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention further has a second operating position. When the control valve 10 is in the second operating position, the valve core 12 of the control valve 10 forms a third communication channel 1003 and a fourth communication channel 1004. The third communication channel 1003 is connected to the first opening 1101 of the valve body 11 and the raw water inlet 1107, respectively, and the fourth communication channel 1004 is connected to the second opening 1102 and the third opening 1103 of the valve body 11, respectively. Furthermore, when the control valve 10 is in the second operating position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected. In other words, when the control valve 10 is in the second operating position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are unable to communicate. Correspondingly, when the control valve 10 is in the second working position, raw water or tap water flows into the raw water inlet 1107 of the valve body 11 of the control valve 10 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the third connecting channel 1003, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth communication channel 1004, the purified water produced by the primary filter element 22 flows into the purified water channel 2201, then flows out from the second communication opening 202, and sequentially flows through the second opening 1102, the fourth communication channel 1004, and the third opening 1103, so that the purified water produced by the primary filter element 22 can be provided through the second water outlet 200 connected to the third opening 1103. It can be understood that when the control valve 10 of the faucet water purifier according to the embodiment of the present invention is controlled to be in the second working position, the faucet water purifier of the present invention is controlled to be in its filtering working state.

[0278] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention further has a third working position. When the control valve 10 is in the third working position, the valve core 12 of the control valve 10 forms a fifth communication channel 1005 and a sixth communication channel 1006. The fifth communication channel 1005 is respectively connected to the first opening 1101 of the valve body 11 and the raw water inlet 1107, and the sixth communication channel 1006 is respectively connected to the fourth opening 1104 and the fifth opening 1105 of the valve body 11. Furthermore, when the control valve 10 is in the third working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected. In other words, when the control valve 10 is in the third working position, the second opening 1102 and the third opening 1103 of the valve body 11 are unable to communicate. Accordingly, when the control valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the control valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the control valve 10 is in the third working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the control valve 10. Therefore, the purified water produced by the primary filter element 22 will be further purified by the secondary filter element 23, and the purified water produced by the secondary filter element 23 flows out from the third connecting opening 203, and flows through the fourth opening 1104, the sixth connecting channel 1006 and the fifth opening 1105 in sequence, so that the purified water produced by the secondary filter element 23 can be provided through the first water outlet 100 connected to the fifth opening 1105. Preferably, the secondary filter element 23 is an ultrafiltration filter element. Accordingly, the purified water produced by the secondary filter element 23 can be drunk directly. It can be understood that when the control valve 10 of the faucet water purifier according to an embodiment of the present invention is controlled to be in the third working position, the faucet water purifier of the present invention is controlled to be in its ultrafiltration working state.

[0279] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention further has a fourth working position. When the control valve 10 is in the fourth working position, the valve core 12 of the control valve 10 forms a seventh communication channel 1007 and an eighth communication channel 1008. The seventh communication channel 1007 is respectively connected to the first opening 1101 and the raw water inlet 1107 of the valve body 11, and the eighth communication channel 1008 is respectively connected to the second opening 1102 and the third opening 1103 of the valve body 11. Furthermore, when the control valve 10 is in the fourth working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected. In other words, when the control valve 10 is in the fourth working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are unable to communicate. Correspondingly, when the control valve 10 is in the fourth working position, raw water or tap water flows into the raw water inlet 1107 of the valve body 11 of the control valve 10 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the seventh connecting channel 1007, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water generated flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the eighth communication channel 1008, the purified water produced by the primary filter element 22 flows into the purified water channel 2201, then flows out from the second communication opening 202, and sequentially flows through the second opening 1102, the eighth communication channel 1008, and the third opening 1103, so that the purified water produced by the primary filter element 22 can be provided through the second water outlet 200 connected to the third opening 1103. It can be understood that when the control valve 10 of the faucet water purifier according to the embodiment of the present invention is controlled to be in the fourth working position, the faucet water purifier of the present invention is controlled to be in its filtering working state.

[0280] As shown in the attached figure Figures 1 to 13FAs shown, the valve body 11 of the control valve 10 of the faucet water purifier according to an embodiment of the present invention further has a sixth opening 1106, wherein the control valve 10 further has a fifth working position. When the control valve 10 is in the fifth working position, the valve core 12 of the control valve 10 forms a ninth communication channel 1009, wherein the ninth communication channel 1009 is respectively connected to the sixth opening 1106 of the valve body 11 and the raw water inlet 1107, thereby allowing raw water or tap water from the faucet to be provided through the sixth opening 1106. Furthermore, when the control valve 10 is in the fifth working position, the raw water inlet 1107 is disconnected from the first opening 1101, the second opening 1102, the third opening 1103, the fourth opening 1104, and the fifth opening 1105. It is understood that when the control valve 10 of the faucet water purifier according to the embodiment of the present invention is controlled to the fifth working position, the faucet water purifier of the present invention is controlled to be in its raw water supply working state. Preferably, the sixth opening 1106 of the control valve 10 forms the raw water outlet of the faucet water purifier of the present invention.

[0281] As shown in the attached figure Figures 1 to 13F As shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention further has a sixth operating position. When the control valve 10 is in the sixth operating position, the valve core 12 of the control valve 10 forms a tenth communication channel 10010. The tenth communication channel 10010 is connected to the sixth opening 1106 and the raw water inlet 1107 of the valve body 11, respectively, so that raw water or tap water from the faucet is provided through the sixth opening 1106. Furthermore, when the control valve 10 is in the sixth operating position, the raw water inlet 1107 is disconnected from the first opening 1101, the second opening 1102, the third opening 1103, the fourth opening 1104, and the fifth opening 1105. It can be understood that when the control valve 10 of the faucet water purifier according to an embodiment of the present invention is controlled in the sixth operating position, the faucet water purifier is controlled to be in its raw water supply operating state.

[0282] As shown in the attached figure Figures 1 to 13FAs shown, the control valve 10 of the faucet water purifier according to an embodiment of the present invention is a planar valve, wherein the valve core 12 of the planar valve 10 further includes a fixed valve disc 121 and a movable valve disc 122, wherein the fixed valve disc 121 has a first fluid control surface 1210, and the movable valve disc 122 has a second fluid control surface 1220, wherein the movable valve disc 122 and the fixed valve disc 121 are both disposed in the valve cavity 110, wherein the second fluid control surface 1220 of the movable valve disc 122 is disposed on the first fluid control surface 1210 of the fixed valve disc 121, and the movable valve disc 122 is configured to rotate relative to the fixed valve disc 121. Preferably, the raw water inlet 1107 is connected to the valve cavity 110 of the valve body 11.

[0283] As shown in the attached figure Figures 1 to 13F As shown, the flat valve 10 of the faucet water purifier according to an embodiment of the present invention has a first channel 101, a second channel 102, a third channel 103, a fourth channel 104, a fifth channel 105, a sixth channel 106 and a seventh channel 107, wherein the first channel 101, the second channel 102, the third channel 103, the fourth channel 104 and the fifth channel 105 are respectively provided on the fixed valve plate 121 and respectively extend from the first fluid control surface 1210 of the fixed valve plate 121; the sixth channel 106 is provided on the fixed valve plate 121. The first channel 106 and the seventh channel 107 are respectively provided on the movable valve disc 122 and extend from the second fluid control surface 1220 of the movable valve disc 122. The first channel 101 is connected to the first opening 1101, the second channel 102 is connected to the second opening 1102, the third channel 103 is connected to the third opening 1103, the fourth channel 104 is connected to the fourth opening 1104, the fifth channel 105 is connected to the fifth opening 1105, and the seventh channel 107 is connected to the raw water inlet 1107. Preferably, the raw water inlet 1107 and the seventh channel 107 are respectively connected to the valve cavity 110, so that the seventh channel 107 is connected to the raw water inlet 1107. More preferably, the sixth channel 106 of the movable valve disc 122 is preferably a conducting blind hole.

[0284] As shown in the attached figure Figures 1 to 13FAs shown, the second channel 102, the fourth channel 104, the third channel 103, and the fifth channel 105 of the planar valve 10 of the faucet water purifier according to an embodiment of the present invention are arranged clockwise in this order on the first fluid control surface 1210 of the fixed valve disc 121. Optionally, the second channel 102, the fourth channel 104, the third channel 103, and the fifth channel 105 of the planar valve 10 are arranged counterclockwise in this order on the first fluid control surface 1210 of the fixed valve disc 121. More preferably, the first channel 101 is disposed outside the fourth channel 104 and the third channel 103, and the first channel 101, the second channel 102, the fourth channel 104, the third channel 103, and the fifth channel 105 of the planar valve 10 are separated and disposed on the first fluid control surface 1210 of the fixed valve disc 121.

[0285] As shown in the attached figure Figures 1 to 13F As shown, according to an embodiment of the present invention, the movable valve disc 122 of the plane valve 10 of the faucet water purifier can rotate relative to the fixed valve disc 121 so that the plane valve 10 has a first working position and a second working position. When the plane valve 10 is in the first working position, the seventh channel 107 of the plane valve 10 is connected to the first channel 101, thereby forming the first connecting channel 1001 connected to the raw water inlet 1107 and the first opening 1101 respectively, and the sixth channel 106 is connected to the fourth channel 104 and the fifth channel 105 respectively, thereby forming The second communication channel 1002 is connected to the fourth opening 1104 and the fifth opening 1105 respectively; when the plane valve 10 is in the second working position, the seventh channel 107 of the plane valve 10 is connected to the first channel 101, thereby forming the third communication channel 1003 connected to the raw water inlet 1107 and the first opening 1101 respectively, and the sixth channel 106 is connected to the second channel 102 and the third channel 103 respectively, thereby forming the fourth communication channel 1004 connected to the second opening 1102 and the third opening 1103 respectively. As shown in the accompanying drawings Figures 1 to 13F As shown, when the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the first working position, the second channel 102 and the third channel 103 of the flat valve 10 are both blocked (or closed) by the movable valve plate 122, thereby preventing the water in the second channel 102 from flowing freely. Accordingly, the first-level purified water produced by the first-level filter element 22 will flow to the second-level filter element 23 under the action of water pressure, and after being further purified by the second-level filter element 23, it will be provided through the fourth opening 1104, the second connecting channel 1002 and the fifth opening 1105. As shown in the accompanying drawings Figures 1 to 13FAs shown, when the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the second operating position, the fourth channel 104 and the fifth channel 105 of the flat valve 10 are both blocked (or sealed) by the movable valve plate 122, thereby preventing the free flow of water in the fourth channel 104. Accordingly, the primary purified water produced by the primary filter element 22 flows toward the second opening 1102 under the action of water pressure and is provided through the fourth connecting channel 1004 and the third opening 1103.

[0286] As shown in the attached figure Figures 1 to 13FAs shown, the plane valve 10 of the faucet water purifier according to an embodiment of the present invention further has an eighth channel 108, the first channel 101 has a first communication portion 1011 and a second communication portion 1012 extending from the first communication portion 1011, wherein the eighth channel 108 is provided on the second fluid control surface 1220 of the movable valve plate 122 of the plane valve 10 and extends from the second fluid control surface 1220 of the movable valve plate 122, wherein the eighth channel 108 is connected to the raw water inlet 1107, wherein the first channel 101 of the plane valve 10 The first communication portion 1011 of the plane valve 10 is arranged on the outside of the fourth channel 104, and the second communication portion 1012 of the first channel 101 of the plane valve 10 is arranged on the outside of the third channel 103, wherein when the plane valve 10 is in the first working position, the seventh channel 107 of the plane valve 10 is connected with the first communication portion 1011 of the first channel 101, thereby forming the first communication channel 1001, and the sixth channel 106 of the plane valve 10 is connected with the fourth channel 104 and the fifth channel 105 respectively, thereby forming the second communication channel When the plane valve 10 is in the second working position, the seventh channel 107 of the plane valve 10 is connected to the second communicating portion 1012 of the first channel 101, thereby forming the third communicating channel 1003, and the sixth channel 106 of the plane valve 10 is connected to the second channel 102 and the third channel 103, respectively, thereby forming the fourth communicating channel 1004; when the plane valve 10 is in the third working position, the eighth channel 108 of the plane valve 10 is connected to the first communicating portion 1011 of the first channel 101, thereby forming The fifth communication channel 1005 and the sixth channel 106 of the planar valve 10 are respectively connected to the fourth channel 104 and the fifth channel 105, thereby forming the sixth communication channel 1006. When the planar valve 10 is in the fourth working position, the eighth channel 108 of the planar valve 10 is connected to the second communication portion 1012 of the first channel 101, thereby forming the seventh communication channel 1007. The sixth channel 106 of the planar valve 10 is respectively connected to the second channel 102 and the third channel 103, thereby forming the eighth communication channel 1008. Preferably, the eighth channel 108 is connected to the valve cavity 110, so that the eighth channel 108 is connected to the raw water inlet 1107.

[0287] As shown in the attached figure Figures 1 to 13FAs shown, the sixth channel 106 of the flat valve 10 of the faucet water purifier according to an embodiment of the present invention has a first conducting portion 1061 and a second conducting portion 1062 extending from the first conducting portion 1061, wherein the seventh channel 107 of the flat valve 10 is arranged outside the first conducting portion 1061 of the sixth channel 106, wherein when the flat valve 10 is in the first working position, the first conducting portion 1061 of the sixth channel 106 of the flat valve 10 is connected to the fourth channel 104, The second conducting portion 1062 of the sixth channel 106 of the planar valve 10 is connected to the fifth channel 105, and the seventh channel 107 is connected to the first channel 101; when the planar valve 10 is in the second working position, the first conducting portion 1061 of the sixth channel 106 of the planar valve 10 is connected to the third channel 103, the second conducting portion 1062 of the sixth channel 106 of the planar valve 10 is connected to the second channel 102, and the seventh channel 107 is connected to the first channel 101.

[0288] As shown in the attached figure Figures 1 to 13F As shown, according to an embodiment of the present invention, the eighth channel 108 of the plane valve 10 of the faucet water purifier is arranged on the outside of the second conducting portion 1062 of the sixth channel 106, and when the plane valve 10 is in the first working position and the second working position, the seventh channel 107 of the plane valve 10 is connected to the first channel 101, and the eighth channel 108 of the plane valve 10 is blocked (or clogged) by the fixed valve plate 121.

[0289] As shown in the attached figure Figures 1 to 13FAs shown, when the plane valve 10 of the faucet water purifier according to an embodiment of the present invention is in the third working position, the eighth channel 108 of the plane valve 10 is connected to the first channel 101, thereby forming the fifth communication channel 1005 respectively connected to the raw water inlet 1107 and the first opening 1101, the first conducting portion 1061 of the sixth channel 106 is connected to the fifth channel 105, and the second conducting portion 1062 of the sixth channel 106 is connected to the fourth channel 104, thereby forming the sixth communication channel 1006 respectively connected to the fourth opening 1104 and the fifth opening 1105; when according to the present invention When the flat valve 10 of the faucet water purifier of the embodiment is in the fourth working position, the eighth channel 108 of the flat valve 10 communicates with the first channel 101, thereby forming the seventh communication channel 1007, which is respectively connected to the raw water inlet 1107 and the first opening 1101. The first conducting portion 1061 of the sixth channel 106 of the flat valve 10 is connected to the second channel 102, and the second conducting portion 1062 of the sixth channel 106 of the flat valve 10 is connected to the third channel 103, thereby forming the eighth communication channel 1008, which is respectively connected to the second opening 1102 and the third opening 1103. Furthermore, when the flat valve 10 is in the third and fourth working positions, the eighth channel 108 of the flat valve 10 is connected to the first channel 101, and the seventh channel 107 of the flat valve 10 is blocked (or clogged) by the fixed valve disc 121.

[0290] It is noteworthy that when the planar valve 10 of the faucet water purifier according to the embodiment of the present invention is in the first working position, the second communication channel 1002 formed by the valve core 12 of the planar valve 10 communicates with the fourth opening 1104 and the fifth opening 1105 of the planar valve 10. When the planar valve 10 of the faucet water purifier according to the embodiment of the present invention is in the third working position, the sixth communication channel 1006 formed by the valve core 12 of the planar valve 10 also communicates with the fourth opening 1104 and the fifth opening 1105 of the planar valve 10. The second communication channel 1002 and the sixth communication channel 1006 are both formed by the communication between the sixth channel 106 and the fourth channel 104 and the fifth channel 105, respectively. Therefore, the second communication channel 1002 and the sixth communication channel 1006 can be regarded as the same communication channel. Furthermore, when the planar valve 10 of the faucet water purifier according to the embodiment of the present invention is in the second working position, the fourth communication channel 1004 formed by the valve core 12 of the planar valve 10 communicates with the second opening 1102 and the third opening 1103 of the planar valve 10. When the planar valve 10 of the faucet water purifier according to the embodiment of the present invention is in the fourth working position, the eighth communication channel 1008 formed by the valve core 12 of the planar valve 10 also communicates with the second opening 1102 and the third opening 1103 of the planar valve 10. The fourth communication channel 1004 and the eighth communication channel 1008 are both formed by the communication between the sixth channel 106 and the second channel 102 and the third channel 103, respectively. Therefore, the fourth communication channel 1004 and the eighth communication channel 1008 can be regarded as the same communication channel. Furthermore, when the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the first working position, the first communication channel 1001 formed by the valve core 12 of the flat valve 10 connects the raw water inlet 1107 of the flat valve 10 and the first opening 1101. When the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the second working position, the third communication channel 1003 formed by the valve core 12 of the flat valve 10 also connects the raw water inlet 1107 of the flat valve 10 and the first opening 1101. Both the first communication channel 1001 and the third communication channel 1003 are formed by the connection between the seventh channel 107 and the first channel 101. Therefore, the first communication channel 1001 and the third communication channel 1003 can be considered the same communication channel.Furthermore, when the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the third working position, the fifth communication channel 1005 formed by the valve core 12 of the flat valve 10 connects the raw water inlet 1107 of the flat valve 10 and the first opening 1101. When the flat valve 10 of the faucet water purifier according to an embodiment of the present invention is in the fourth working position, the seventh communication channel 1007 formed by the valve core 12 of the flat valve 10 also connects the raw water inlet 1107 of the flat valve 10 and the first opening 1101. Furthermore, both the fifth communication channel 1005 and the seventh communication channel 1007 are formed by the connection between the eighth channel 108 and the first channel 101. Therefore, the fifth communication channel 1005 and the seventh communication channel 1007 can be considered the same communication channel.

[0291] As shown in the attached figure Figures 1 to 13F As shown, the flat valve 10 of the faucet water purifier according to an embodiment of the present invention further has a raw water supply channel 109, wherein the raw water supply channel 109 is provided on the fixed valve plate 121 and extends from the first fluid control surface 1210 of the fixed valve plate 121, wherein the raw water supply channel 109 is connected to the sixth opening 1106, wherein when the flat valve 10 is in the fifth working position, the seventh channel 107 of the flat valve 10 is connected to the raw water supply channel 109, thereby forming the ninth communication channel 100 respectively connected to the raw water inlet 1107 and the sixth opening 1106. 09, to allow raw water to flow in from the raw water inlet 1107 and be further provided through the seventh channel 107, the raw water supply channel 109 and the sixth opening 1106; when the plane valve 10 is in the sixth working position, the eighth channel 108 of the plane valve 10 is connected with the raw water supply channel 109, thereby forming the tenth connecting channel 10010 which is respectively connected with the raw water inlet 1107 and the sixth opening 1106, to allow raw water to flow in from the raw water inlet 1107 and be further provided through the eighth channel 108, the raw water supply channel 109 and the sixth opening 1106. Further, when the planar valve 10 is in the fifth working position, the eighth channel 108 of the planar valve 10 is blocked by the fixed valve plate 121, and the first channel 101, the second channel 102, the third channel 103, the fourth channel 104 and the fifth channel 105 of the planar valve 10 are blocked by the movable valve plate 122; when the planar valve 10 is in the sixth working position, the seventh channel 107 of the planar valve 10 is blocked by the fixed valve plate 121, and the first channel 101, the second channel 102, the third channel 103, the fourth channel 104 and the fifth channel 105 of the planar valve 10 are blocked by the movable valve plate 122.

[0292] As shown in the attached figure Figures 1 to 13FAs shown, according to an embodiment of the present invention, the second channel 102 and the third channel 103 of the plane valve 10 of the faucet water purifier are both centrally symmetrically arranged on the first fluid control surface 1210 of the fixed valve plate 121, the fourth channel 104 and the fifth channel 105 of the plane valve 10 are both centrally symmetrically arranged on the first fluid control surface 1210 of the fixed valve plate 121, and the sixth channel 106 is centrally symmetrically arranged on the second fluid control surface 1220 of the movable valve plate 122, so that when the plane valve 10 is in the first working position and the third working position, the sixth channel 106 can be connected to the fourth channel 104 and the fifth channel 105, and when the plane valve 10 is in the second working position and the fourth working position, the sixth channel 106 can be connected to the second channel 102 and the third channel 103. In other words, the second channel 102 and the third channel 103 of the planar valve 10 are arranged symmetrically on the portion of the first fluid control surface 1210 of the fixed valve disc 121, the fourth channel 104 and the fifth channel 105 of the planar valve 10 are arranged symmetrically on the portion of the first fluid control surface 1210 of the fixed valve disc 121, and the sixth channel 106 itself is symmetrically arranged. In addition, preferably, the seventh channel 107 and the eighth channel 108 of the planar valve 10 are respectively arranged on the second fluid control surface 1220 of the movable valve disc 122, and the seventh channel 107 and the eighth channel 108 are both arranged symmetrically on the second fluid control surface 1220 of the movable valve disc 122.

[0293] As shown in the attached figure Figures 1 to 13F As shown, the first opening 1101, the second opening 1102, the fourth opening 1104 and the fifth opening 1105 of the plane valve 10 of the faucet water purifier according to an embodiment of the present invention are arranged on the same side of the valve body 11 of the plane valve 10, and the third opening 1103 and the sixth opening 1106 are arranged on the other same side of the valve body 11 of the plane valve 10.

[0294] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second water outlet 200, the third opening 1103 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the first water outlet 100, and the raw water inlet 1106 of the valve body 11 is connected to the first water outlet 100. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the fourth opening 1104, the second communication channel 1002, and the fifth opening 1105, thereby being provided through the first water outlet 100 connected to the fifth opening 1105. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the fourth connecting channel 1004 and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the fourth opening 1104, the sixth connecting channel 1006 and the fifth opening 1105 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the fifth opening 1105. Furthermore, when the plane valve 10 is in the sixth working position, raw water or tap water flows into the plane valve 10 from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the seventh connecting channel 1007, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water generated flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the eighth connecting channel 1008, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the eighth connecting channel 1008 and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.

[0295] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the second water outlet 200, the fourth opening 1104 of the valve body 11 is connected to the first water outlet 100, the fifth opening 1105 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, and the raw water inlet 11 of the valve body 11 is connected to the water inlet 1106 of the valve body 11. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the fifth opening 1105, the second communication channel 1002, and the fourth opening 1104, so that the purified water produced by the secondary filter element 23 can be provided through the first water outlet 100 connected to the fourth opening 1104. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the second opening 1102, the fourth connecting channel 1004 and the third opening 1103 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the third opening 1103.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the fifth opening 1105, the sixth communication channel 1006, and the fourth opening 1104, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the fourth opening 1104. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the eighth connecting channel 1008, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the second opening 1102, the eighth connecting channel 1008 and the third opening 1103 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the third opening 1103.

[0296] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second water outlet 200, the third opening 1103 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the first water outlet 100, the fifth opening 1105 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, and the raw water inlet 11 of the valve body 11 is connected to the water inlet 1106 of the valve body 11. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the fifth opening 1105, the second communication channel 1002, and the fourth opening 1104, so that the purified water produced by the secondary filter element 23 can be provided through the first water outlet 100 connected to the fourth opening 1104. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the fourth connecting channel 1004 and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the fifth opening 1105, the sixth communication channel 1006, and the fourth opening 1104, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the fourth opening 1104. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the eighth connecting channel 1008, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the eighth connecting channel 1008 and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.

[0297] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the first water outlet 100, the fourth opening 1104 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the second water outlet 200, and the raw water inlet 1106 of the valve body 11 is connected to the first water outlet 100. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the second opening 1102, the fourth communication channel 1004, and the third opening 1103, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the third opening 1103. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the second connecting channel 1002 and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the second opening 1102, the eighth communication channel 1008, and the third opening 1103, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the third opening 1103. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the sixth connecting channel 1006, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the sixth connecting channel 1006 and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.Correspondingly, when the plane valve 10 is in the first working position, the third communication channel 1003 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth communication channel 1004 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the second working position, the first communication channel 1001 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second communication channel 1002 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105 ; When the plane valve 10 is in the third working position, the seventh communication channel 1007 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the eighth communication channel 1008 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the fourth working position, the fifth communication channel 1005 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the sixth communication channel 1006 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0298] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the first water outlet 100, the third opening 1103 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the second water outlet 200, and the raw water inlet 1106 of the valve body 11 is connected to the first water outlet 100. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the third opening 1103, the fourth communication channel 1004, and the second opening 1102, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the second opening 1102. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the second connecting channel 1002 and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the third opening 1103, the eighth communication channel 1008, and the second opening 1102, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the second opening 1102. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the sixth connecting channel 1006, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the sixth connecting channel 1006 and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.Correspondingly, when the plane valve 10 is in the first working position, the third communication channel 1003 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth communication channel 1004 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the second working position, the first communication channel 1001 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second communication channel 1002 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105 ; When the plane valve 10 is in the third working position, the seventh communication channel 1007 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the eighth communication channel 1008 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the fourth working position, the fifth communication channel 1005 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the sixth communication channel 1006 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0299] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the first water outlet 100, the third opening 1103 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the second water outlet 200, the fifth opening 1105 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, and the raw water inlet 11 of the valve body 11 is connected to the first water outlet 100. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the third opening 1103, the fourth communication channel 1004, and the second opening 1102, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the second opening 1102. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fifth opening 1105, the second connecting channel 1002 and the fourth opening 1104 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fourth opening 1104.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the third opening 1103, the eighth communication channel 1008, and the second opening 1102, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the second opening 1102. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the sixth connecting channel 1006, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fifth opening 1105, the sixth connecting channel 1006 and the fourth opening 1104 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fourth opening 1104.Correspondingly, when the plane valve 10 is in the first working position, the third communication channel 1003 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth communication channel 1004 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the second working position, the first communication channel 1001 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second communication channel 1002 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105 ; When the plane valve 10 is in the third working position, the seventh communication channel 1007 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the eighth communication channel 1008 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the fourth working position, the fifth communication channel 1005 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the sixth communication channel 1006 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0300] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the first water outlet 100, the fourth opening 1104 of the valve body 11 is connected to the second water outlet 200, the fifth opening 1105 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, and the raw water inlet 11 of the valve body 11 is connected to the first water outlet 100. 07 is connected to the raw water source, so that when the flat valve 10 is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the third communication channel 1003 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the second opening 1102, the fourth communication channel 1004, and the third opening 1103, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the third opening 1103. When the flat valve 10 is in the second working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the first communication channel 1001 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fifth opening 1105, the second connecting channel 1002 and the fourth opening 1104 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fourth opening 1104.When the flat valve 10 is in the third working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the seventh communication channel 1007 to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10 is in the third working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10. Therefore, the purified water produced by the primary filter element 22 is further purified by the secondary filter element 23. The purified water produced by the secondary filter element 23 flows out of the third communication opening 203 and sequentially flows through the second opening 1102, the eighth communication channel 1008, and the third opening 1103, thereby allowing the purified water produced by the secondary filter element 23 to be provided through the first water outlet 100 connected to the third opening 1103. When the flat valve 10 is in the fourth working position, raw water or tap water, under the action of water pressure, flows through the raw water inlet 1107 of the valve body 11 of the flat valve 10, flows through the fifth communication channel 1005 to the first opening 1101 of the valve body 11, and further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the sixth connecting channel 1006, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fifth opening 1105, the sixth connecting channel 1006 and the fourth opening 1104 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fourth opening 1104.Correspondingly, when the plane valve 10 is in the first working position, the third communication channel 1003 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth communication channel 1004 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the second working position, the first communication channel 1001 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second communication channel 1002 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105 ; When the plane valve 10 is in the third working position, the seventh communication channel 1007 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the eighth communication channel 1008 formed by the plane valve 10 is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10 is in the fourth working position, the fifth communication channel 1005 formed by the plane valve 10 is respectively connected to the raw water inlet 1107 and the first opening 1101, and the sixth communication channel 1006 formed by the plane valve 10 is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0301] As shown in the attached figure Figures 8B to 8DAs shown, the faucet water purifier according to an embodiment of the present invention further includes a guide plate 30, wherein the guide plate 30 is arranged between the base 24 of the filter device 20 and the valve body 11 of the plane valve 10, wherein the guide plate 30 has a first guide hole 301, a second guide hole 302, and a third guide hole 303, wherein the first guide hole 301 has a first guide port 3011 and a second guide port 3012, the second guide hole 302 has a third guide port 3021 and a fourth guide port 3022, and the third guide hole 303 has a A fifth guide port 3031 and a sixth guide port 3032, wherein the guide plate 30 further has a first side 31 and a second side 32, wherein the first guide port 3011, the third guide port 3021 and the fifth guide port 3031 are arranged on the first side 31 of the guide plate 30, and the second guide port 3012, the fourth guide port 3022 and the sixth guide port 3032 are arranged on the second side 32 of the guide plate 30, wherein the first side 31 of the guide plate 30 is arranged toward the valve body 11, and the second side 32 is arranged toward the base 24. Further, the first guide port 3011 is configured to be connected to the first opening 1101 of the valve body 11, the third guide port 3021 is configured to be connected to the second opening 1102, the fifth guide port 3031 is configured to be connected to the fourth opening 1104, the second guide port 3012 is configured to be connected to the first connecting opening 201 of the filter device 20, the fourth guide port 3022 is configured to be connected to the second connecting opening 202, and the sixth guide port 3032 is configured to be connected to the third connecting opening 203. In other words, the first guide hole 301 of the guide plate 30 is respectively connected to the first opening 1101 and the first communication opening 201, the second guide hole 302 is respectively connected to the second opening 1102 and the second communication opening 202, and the third guide hole 303 is respectively connected to the fourth opening 1104 and the third communication opening 203. Preferably, the guide plate 30 is made of a sealing material so as to be disposed in a watertight manner between the base 24 of the filter device 20 and the control valve 10, thereby serving to watertightly seal the connection between the base 24 of the filter device 20 and the valve body 11 of the control valve 10.

[0302] As shown in the attached figure Figures 8B to 8DAs shown, according to an embodiment of the present invention, the clean water supply channel 2464 of the base 24 of the faucet water purifier has a clean water opening 204, and the guide plate 30 has a clean water through hole 304, wherein the clean water through hole 304 has a first clean water port 3041 and a second clean water port 3042, wherein the first clean water port 3041 is arranged on the first side 31 of the guide plate 30, and the second clean water port 3042 is arranged on the second side 32 of the guide plate 30, and the clean water opening 204 is arranged on the base 24, wherein the first clean water port 3041 is arranged to be connected with the fifth opening 1105 of the valve body 11, and the second clean water port 3042 is arranged to be connected with the clean water opening 204 of the clean water supply channel 2464 of the filtering device 20.

[0303] As shown in the attached figure Figure 6C and Figures 8B to 8D As shown, the guide plate 30 of the faucet water purifier according to an embodiment of the present invention further has a group of positioning protrusions 33, wherein the positioning protrusions 33 are preferably arranged on the first side 31, wherein the positioning protrusions 33 are arranged to engage with the positioning grooves 34 arranged on the valve body 11 respectively, thereby helping the guide plate 30 to be correctly arranged between the valve body 11 of the control valve 10 and the base 24 of the filter device 20. It can be understood that when the positioning protrusion 33 of the guide plate 30 is correctly engaged with the positioning groove 34 provided on the valve body 11, the first guide port 3011 is connected to the first opening 1101 of the valve body 11, the third guide port 3021 is connected to the second opening 1102, the fifth guide port 3031 is connected to the fourth opening 1104, the second guide port 3012 is connected to the first connecting opening 201 of the filter device 20, the fourth guide port 3022 is connected to the second connecting opening 202, and the sixth guide port 3032 is connected to the third connecting opening 203. It is worth noting that the guide plate 30 of the faucet water purifier of the present invention will significantly reduce the manufacturing difficulty of the base 24 of the filter device 20 of the faucet water purifier of the present invention. As shown in the accompanying drawings Figure 2 and Figures 8B to 8DAs shown, the first opening 1101, the second opening 1102, and the fourth opening 1104 of the valve body 11 of the control valve 10 of the faucet water purifier of the present invention are irregularly distributed and shaped on the valve body 11. This makes it difficult for the first communication opening 201, the second communication opening 202, and the third communication opening 203 of the filter device 20 to cooperate and communicate with the first opening 1101, the second opening 1102, and the fourth opening 1104. Furthermore, if the base 24 of the filter device 20 were directly connected to the valve body 11, the distribution and shape of the first opening 1101, the second opening 1102, and the fourth opening 1104 of the valve body 11 on the valve body 11 would determine the distribution and shape of the first communication opening 201, the second communication opening 202, and the third communication opening 203 of the filter device 20 on its base 24, which would significantly increase the difficulty of manufacturing the base 24 of the filter device 20. The first guide port 3011 of the guide plate 30 used in the faucet water purifier of the present invention, which is arranged on the first side surface 31 thereof, is suitable for being connected to the first opening 1101 of the valve body 11, the third guide port 3021 is suitable for being connected to the second opening 1102, the fifth guide port 3031 is suitable for being connected to the fourth opening 1104, the second guide port 3012 arranged on the second side surface 32 thereof is suitable for being connected to the first communicating opening 201 of the filtering device 20, the fourth guide port 3022 is suitable for being connected to the second communicating opening 202, and the sixth guide port 3032 is suitable for being connected to the third communicating opening 203, so that the first communicating opening 201, the second communicating opening 202 and the third communicating opening 203 of the filtering device 20 facilitate mutual cooperation and communication between the first opening 1101, the second opening 1102 and the fourth opening 1104. Furthermore, the aforementioned structure of the guide plate 30 employed in the faucet water purifier of the present invention also allows the base 24 of the filter device 20 and the valve body 11 of the control valve 10 of the faucet water purifier of the present invention to be manufactured separately. Furthermore, the distribution and shape of the first, second, and third communication openings 201, 202, and 203 of the filter device 20 on the base 24 are not restricted by the distribution and shape of the first, second, and fourth openings 1101, 1102, and 1104 of the valve body 11 on the valve body 11. This reduces the difficulty of manufacturing the base 24 of the filter device 20.

[0304] As shown in the attached figure Figure 2 and Figure 8AAs shown, the fixed valve disc 121 of the valve core 12 of the flat valve 10 of the faucet water purifier according to an embodiment of the present invention includes a high end portion 1211, a low end portion 1212, and a fixed portion 1213 disposed between the high end portion 1211 and the low end portion 1212, wherein the high end portion 1211 forms the first fluid control surface 1210 of the fixed valve disc 121, and the low end portion 1212 is disposed in the valve cavity 110 of the valve body 11. Preferably, the low end portion 1212 of the fixed valve disc 121 of the valve core 12 of the flat valve 10 of the faucet water purifier of the present invention is integrally formed and disposed on the inner wall of the valve body 11 of the flat valve 10.

[0305] As shown in the attached figure Figure 2 and Figures 8A to 9H As shown, the faucet water purifier according to an embodiment of the present invention further includes a fixing device 40, wherein the fixing device 40 includes a fixing bracket 41, a first clamping member 42 and a second clamping member 43, wherein the fixing bracket 41 of the fixing device 40 has a accommodating chamber 410 and at least one water inlet opening 401, wherein the water inlet opening 401 is respectively connected to the raw water inlet 1107 of the valve body 11 and the accommodating chamber 410, wherein the first clamping member 42 is arranged on the fixing portion 1213 of the fixed valve plate 121, and the second clamping member 43 is arranged on the fixing bracket 41, wherein the first clamping member 42 and the second clamping member 43 are arranged to be clamped together, so that the fixing portion 1213 of the fixed valve plate 121 can be fixed to the fixing bracket 41 through the first clamping member 42 and the second clamping member 43. Furthermore, the water inlet opening 401 and the raw water inlet 1107 of the fixing bracket 41 are both connected to the valve cavity 110 of the valve body 11, so that the accommodating chamber 410 of the fixing bracket 41 is connected to the raw water inlet 1107 of the valve body 11 through the water inlet opening 401 and the valve cavity 110 of the valve body 11, and raw water can flow from the raw water inlet 1107 of the valve body 11 into the accommodating chamber 410 of the fixing bracket 41. Figure 2 and Figures 8A to 9H As shown, the accommodating chamber 410 of the fixing bracket 41 of the fixing device 40 of the faucet water purifier according to an embodiment of the present invention is configured to accommodate the high end portion 1211 of the fixed valve disc 121 and the movable valve disc 122 therein, and the seventh channel 107 of the flat valve 10 is configured to communicate with the accommodating chamber 410 of the fixing bracket 41, so that raw water can be provided to the seventh channel 107 of the flat valve 10 through the water inlet opening 401 of the fixing bracket 41 and the accommodating chamber 410. In other words, the seventh channel 107 of the flat valve 10 is connected to the raw water inlet 1107 of the valve body 11 through the accommodating chamber 410 of the fixing bracket 41, the water inlet opening 401, and the valve cavity 110 of the valve body 11. As shown in the accompanying drawings Figure 2 and Figures 8A to 9H As shown, further, the high end portion 1211 of the fixed valve disc 121 is suitable for being detachably clamped to the fixed portion 1213 of the fixed valve disc 121, and the fixed portion 1213 of the fixed valve disc 121 is suitable for being detachably clamped to the low end portion 1212 of the fixed valve disc 121, so that the high end portion 1211 of the fixed valve disc 121 cannot rotate relative to the fixed portion 1213, and the fixed portion 1213 of the fixed valve disc 121 cannot rotate relative to the low end portion 1212.

[0306] It is worth noting that the high end portion 1211 of the fixed valve plate 121 of the valve core 12 of the flat valve 10 of the faucet water purifier of the present invention is detachably clamped to the fixed portion 1213 of the fixed valve plate 121, and the fixed portion 1213 of the fixed valve plate 121 is detachably clamped to the low end portion 1212 of the fixed valve plate 121, and the high end portion 1211 of the fixed valve plate 121 and the movable valve plate 122 are accommodated in the accommodating chamber 410 of the fixing bracket 41, so that the high end portion 1211, the fixed portion 1213 and the movable valve plate 122 of the fixed valve plate 121 can be integrated together through the fixing bracket 41, the first clamping component 42 and the second clamping component 43 of the fixing device 40. In particular, since the high end portion 1211 of the fixed valve plate 121 forms the first fluid control surface 1210 of the fixed valve plate 121, and the high end portion 1211 of the fixed valve plate 121 is detachably clamped to the fixed portion 1213 of the fixed valve plate 121, the high end portion 1211 can be manufactured separately and the side of the high end portion 1211 facing the movable valve plate 122 can be easily processed, such as being polished smooth, to form the first fluid control surface 1210. However, if the fixed valve plate 121 of the valve core 12 of the flat valve 10 of the faucet water purifier of the present invention is fixedly set on the valve body 11, or the fixed valve plate 121 of the valve core 12 of the flat valve 10 is integrally formed with the valve body 11, then the side of the high end portion 1211 of the fixed valve plate 121 of the valve core 12 of the flat valve 10 facing the movable valve plate 122 is difficult to process and obtain the first fluid control surface 1210.

[0307] As shown in the attached figure Figure 2 and Figures 8A to 9HAs shown, the first clamping member 42 of the fixing device 40 of the faucet water purifier according to an embodiment of the present invention includes a set of hooks 421 provided on the side wall of the fixing portion 1213 of the fixed valve disc 121, and the second clamping member 43 has a set of clamping grooves 430, wherein the hooks 421 of the first clamping member 42 are adapted to engage with the clamping grooves 430 of the second clamping member 43, thereby clamping the first clamping member 42 and the second clamping member 43 together. Optionally, the first clamping member 42 has a set of clamping grooves 430 provided on the side wall of the fixing portion 1213 of the fixed valve disc 121, and the second clamping member 43 has a set of hooks 421 provided on the fixing bracket 41, wherein the hooks 421 of the second clamping member 43 are adapted to engage with the clamping grooves 430 of the first clamping member 42. In other words, the hook 421 of the fixing device 40 is disposed on the fixing bracket 41, and the engaging groove 430 is disposed on the side wall of the fixing portion 1213 of the fixed valve disc 121. Furthermore, the fixing device 40 has a set of guide grooves 400 and a set of guide members 45, wherein the guide grooves 400 are respectively disposed on the side walls of the fixing portion 1213 of the fixed valve disc 121, and the guide members 45 are disposed on the second clamping member 43 and extend from the second clamping member 43, wherein the guide members 45 are respectively disposed opposite to the engaging grooves 430, and the width of the guide members 45 is no greater than the width of the guide grooves 400, thereby enabling the first clamping member 42 and the second clamping member 43 to be mutually engaged under the guidance of the guide grooves 400 and the guide members 45.

[0308] As shown in the attached figure Figure 2 and Figures 8A to 9H As shown, the faucet water purifier according to the embodiment of the present invention further includes a driving assembly 6, wherein the driving assembly 6 is configured to drive the movable valve plate 122 of the plane valve 10 to rotate relative to the fixed valve plate 121. Figure 2 and Figures 8A to 9HAs shown, illustratively, the drive assembly 6 includes a valve stem 60, and the fixed bracket 41 further has an operating opening 402, wherein the operating opening 402 is connected to the accommodating chamber 410 of the fixed bracket 41, wherein the valve stem 60 has a driving end 61 and an operating end 62 extending from the driving end 61, wherein the driving end 61 of the valve stem 60 is disposed in the accommodating chamber 410 of the fixed bracket 41, and the operating end 62 of the valve stem 60 extends from the driving end 61 and passes through the operating opening 402 of the fixed bracket 41 to exit the accommodating chamber 410 of the fixed bracket 41. Accordingly, when the operating end 62 of the valve stem 60 is operated to rotate, the driving end 61 is driven to rotate and further drives the movable valve disc 122 to rotate, thereby controlling the planar valve 10 to be in the corresponding working position. Correspondingly, the high end portion 1211, the fixed portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121 can be integrated together through the fixed bracket 41, the first clamping member 42 and the second clamping member 43 of the fixing device 40, thereby reducing the manufacturing difficulty of the fixed valve plate 121 while reducing the difficulty of assembling the high end portion 1211, the fixed portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121 into the valve cavity 110 of the valve body 11. It can be understood that this method of integrating the high end portion 1211, the fixed portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121 through the fixed bracket 41, the first clamping member 42 and the second clamping member 43 of the fixing device 40 also makes the high end portion 1211, the fixed portion 1213, the movable valve plate 122 and the valve stem 60 of the fixed valve plate 121 more convenient for the automated assembly and production of the planar valve 10. Furthermore, the outer diameter of the driving end 61 of the valve stem 60 is smaller than the inner diameter of the accommodating chamber 410 of the fixed bracket 41 and larger than the inner diameter of the operating opening 402 of the fixed bracket 41. The outer diameter of the operating end 62 of the valve stem 60 is smaller than the inner diameter of the operating opening 402 of the fixed bracket 41, so that the fixed bracket 41 can be pressed against the driving end 61 of the valve stem 60 under the action of external force, so that the movable valve plate 122 can be pressed against the high end portion 1211 of the fixed valve plate 121 under the action of the driving end 61 of the valve stem 60 and the second fluid control surface 1220 of the movable valve plate 122 is set on the first fluid control surface 1210 of the fixed valve plate 121.

[0309] It can be understood that the drive assembly 6 can be any mechanism or component that can be used to drive the movable valve disc 122 of the planar valve 10 to rotate relative to the fixed valve disc 121. Exemplarily, the drive assembly 6 can also be a gear set for driving the movable valve disc 122 of the planar valve 10 to rotate relative to the fixed valve disc 121, wherein the gear set includes a driving gear and driven teeth arranged on the side wall of the movable valve disc 122, and the driving gear is engaged with the driven teeth of the movable valve disc 122, so that the user or operator can drive the movable valve disc 122 to rotate relative to the fixed valve disc 121 by rotating the driving gear. Exemplarily, the drive assembly 6 can also include a drive rod that is arranged on the movable valve disc 122 of the planar valve 10 and is parallel to the second fluid control surface 1220 of the movable valve disc 122. The user can drive the movable valve disc 122 to rotate relative to the fixed valve disc 121 through the drive rod of the drive assembly 6. As shown in the accompanying drawings Figure 2 and Figures 8A to 9H As shown, the fixing device 40 of the faucet water purifier according to an embodiment of the present invention further includes a fixing member 44, wherein the fixing member 44 is arranged to press against the fixing bracket 41 and is configured to be fixed to the valve body 11 of the flat valve 10. Accordingly, the fixing bracket 41 is retained in the valve cavity 110 of the valve body 11 by the fixing member 44.

[0310] As shown in the attached figure Figure 2 and Figures 8A to 9HAs shown, the faucet water purifier according to an embodiment of the present invention further includes a positioning assembly 50, wherein the positioning assembly 50 has a limiting element 51 and a reset element 52 arranged on the limiting element 51, a set of arc-shaped limiting grooves 501 arranged on the inner wall of the fixing bracket 41 and an operating chamber 502 arranged on the driving end 61 of the valve stem 60, wherein the limiting element 51 and the reset element 52 are both arranged in the operating chamber 502, and the reset element 52 is arranged between the limiting element 51 and the driving end 61, so that when the valve stem 60 is When the driving end 61 of the valve stem 60 is rotated and the limiting element 51 is aligned with the limiting groove 501, the limiting element 51 will move into the limiting groove 501 under the action of the restoring force (or elastic force) of the restoring element 52. At this time, when the driving end 61 of the valve stem 60 is further rotated so that the fixing bracket 41 presses the limiting element 51, thereby retracting the limiting element 51 into the operating chamber 502, the driving end 61 of the valve stem 60 can be easily rotated and the limiting element 51 remains retracted into the operating chamber 502 under the pressure of the fixing bracket 41. It can be understood that when the driving end 61 of the valve stem 60 is rotated so that the limiting element 51 is aligned with the limiting groove 501 and the limiting element 51 moves into the limiting groove 501, the flat valve 10 is maintained in a corresponding working position, and the faucet water purifier of the present invention is in a corresponding working state. It is understood that the reset element 52 is a reset spring. Alternatively, the reset element 52 is a reset spring. Preferably, the limiting element 51 is configured to engage with the limiting groove 501 so that the limiting element 51 can be stably retained in the limiting groove 501 in the absence of an appropriate external force driving the valve stem 60 to rotate.

[0311] As shown in the attached figure Figure 2 and Figures 8A to 9HAs shown, the faucet water purifier according to an embodiment of the present invention further includes a sealing assembly 70, wherein the sealing assembly 70 has a first sealing member 71, wherein the first sealing member 71 is arranged between the high end portion 1211 and the fixed portion 1213 of the fixed valve plate 121. Furthermore, the first sealing member 71 has a plurality of first sealing strips 711, and the fixed portion 1213 of the fixed valve disc 121 has a set of first sealing grooves 12130, wherein the first sealing grooves 12130 are respectively arranged around the first channel 101, the second channel 102, the third channel 103, the fourth channel 104, the fifth channel 105, and the raw water supply channel 109 of the fixed valve disc 121. The first sealing strips 711 of the first sealing member 71 are arranged along the first sealing grooves 12130 of the fixed portion 1213, so that the first sealing strips 711 of the first sealing member 71 can engage with the first sealing grooves 12130 of the fixed portion 1213 and achieve a seal between the high end portion 1211 of the fixed valve disc 121 and the fixed portion 1213. It will be understood that the first sealing grooves 12130 are formed on the side of the fixed portion 1213 facing the high end portion 1211. Furthermore, the sealing assembly 70 has a second sealing member 72 , wherein the second sealing member 72 is disposed between the fixed portion 1213 and the lower end portion 1212 of the fixed valve plate 121 . Furthermore, the second sealing member 72 has a plurality of second sealing strips 721, and the fixed portion 1213 of the fixed valve disc 121 has a set of second sealing grooves 12131. The second sealing grooves 12131 are respectively arranged around the first channel 101, the second channel 102, the third channel 103, the fourth channel 104, the fifth channel 105, and the raw water supply channel 109 of the fixed valve disc 121. The second sealing strips 721 of the second sealing member 72 are arranged along the second sealing grooves 12131 of the fixed portion 1213, so that the second sealing strips 721 of the second sealing member 72 can engage with the second sealing grooves 12131 of the fixed portion 1213 and achieve a seal between the lower end portion 1212 of the fixed valve disc 121 and the fixed portion 1213. It will be understood that the second sealing grooves 12131 are formed on the side of the fixed portion 1213 facing the lower end portion 1212.

[0312] As shown in the attached figure Figure 2 and Figures 8A to 9HAs shown, the sealing assembly 70 of the faucet water purifier according to an embodiment of the present invention further includes at least one first sealing ring 73, wherein the first sealing ring 73 is disposed on the outer surface of the fixing bracket 41 to achieve a seal between the fixing bracket 41 and the inner wall of the valve body 11 and prevent raw water from flowing out from between the fixing bracket 41 and the inner wall of the valve body 11. Furthermore, the sealing assembly 70 includes at least one second sealing ring 74, wherein the second sealing ring 74 is disposed between the valve stem 60 and the fixing bracket 41 to achieve a seal between the valve stem 60 and the inner wall of the fixing bracket 41 and prevent raw water from flowing out from between the valve stem 60 and the inner wall of the fixing bracket 41.

[0313] As shown in the attached figure Figure 2 and Figures 8A to 9H As shown, the faucet water purifier according to an embodiment of the present invention further includes a knob 80, wherein the knob 80 is arranged at the operating end 62 of the valve stem 60, so that the user can rotate the valve stem 60, thereby rotating the movable valve plate 122 and controlling the flat valve 10 to be in the corresponding working position.

[0314] As shown in the attached figure Figures 1 to 13F As shown, according to an embodiment of the present invention, the present invention further provides a valve disc assembly for a faucet water purifier plane valve, which includes a fixed valve disc 121 and a movable valve disc 122, wherein the fixed valve disc 121 has a first fluid control surface 1210, and the movable valve disc 122 has a second fluid control surface 1220, wherein the movable valve disc 122 and the fixed valve disc 121 are both arranged in the valve cavity 110, wherein the second fluid control surface 1220 of the movable valve disc 122 is arranged on the first fluid control surface 1210 of the fixed valve disc 121, and the movable valve disc 122 is arranged to be rotatable relative to the fixed valve disc 121, wherein the plane valve 10 has a first channel 101, a second channel 102, a third channel 103, a fourth channel 104, a fifth channel 105, a sixth channel 106 and a sixth channel 107. Seven channels 107, wherein the first channel 101, the second channel 102, the third channel 103, the fourth channel 104 and the fifth channel 105 are respectively arranged on the fixed valve plate 121 and respectively extend from the first fluid control surface 1210 of the fixed valve plate 121; the sixth channel 106 and the seventh channel 107 are respectively arranged on the movable valve plate 122 and respectively extend from the second fluid control surface 1220 of the movable valve plate 122, wherein the first channel 101 is connected to the first opening 1101, the second channel 102 is connected to the second opening 1102, the third channel 103 is connected to the third opening 1103, the fourth channel 104 is connected to the fourth opening 1104, the fifth channel 105 is connected to the fifth opening 1105, and the seventh channel 107 is connected to the raw water inlet 1107.

[0315] Attached Figures 14A to 15E What is shown is an optional implementation of the filtering device 20 of the faucet water purifier according to an embodiment of the present invention, wherein the filtering device 20A includes a housing 21, a primary filter element 22 and a secondary filter element 23A, wherein the housing 21 forms a first accommodating chamber 210, and the primary filter element 22 forms a second accommodating chamber 220, wherein the primary filter element 22 is arranged in the first accommodating chamber 210 of the housing 21, and the secondary filter element 23A is arranged in the second accommodating chamber 220 of the primary filter element 22, and the housing 21 and the primary filter element 22 form a raw water channel 2101 located therebetween, the primary filter element 22 and the secondary filter element 23A form a clean water channel 2201A located therebetween (the clean water channel 2201A can be regarded as part of the second accommodating chamber 220), and the secondary filter element 23A has a clean water outlet 2301A. Correspondingly, since the secondary filter element 23A is arranged in the second accommodating chamber 220 of the primary filter element 22, when the raw water flows into the raw water channel 2101 under the action of water pressure and is processed by the primary filter element 22, the purified water generated by the primary filter element 22 can flow to the secondary filter element 23A under the action of water pressure and be processed by the secondary filter element 23A to obtain cleaner secondary purified water. The secondary purified water flows out from the clean water outlet 2301A under the action of water pressure to be provided.

[0316] As shown in the attached figure Figures 14A to 15EAs shown, the secondary filter element 23A of the filtering device 20A of the faucet water purifier according to an embodiment of the present invention includes a group of ultrafiltration membrane wires 231A and a manifold 233A, wherein the ultrafiltration membrane wires 231A and the manifold 233A are both arranged in the second accommodating cavity 220 of the primary filter element 22, and the ultrafiltration membrane wires 231A are arranged around the manifold 233A, wherein the manifold 233A has at least one water collection hole 2330A and a manifold channel 2331A, wherein the manifold 2331 A is configured to be connected to the water collection hole 2330A and the second connecting opening 202 of the filter device 20 respectively, so that the purified water generated by the first-stage filter element 22 can flow to the ultrafiltration membrane filament 231A through the clean water channel 2201A under the action of water pressure, and flow to the collecting pipe 233A through the gaps between the ultrafiltration membrane filaments 231A, and be collected through the water collection hole 2330A of the collecting pipe 233A and flow to the second connecting opening 202 of the filter device 20 through the collecting channel 2331A. It can be understood that when the purified water produced by the primary filter element 22 flows through the gap between the clean water channel 2201A and the ultrafiltration membrane filament 231A to the manifold 233A, the purified water produced by the primary filter element 22 has a flushing effect on the ultrafiltration membrane filament 231A of the secondary filter element 23A, thereby improving the filtration effect of the ultrafiltration membrane filament 231A of the secondary filter element 23A and extending the service life of the secondary filter element 23A. Furthermore, each ultrafiltration membrane filament 231A of the secondary filter element 23A forms a membrane filament channel 2310A, wherein the membrane filament channel 2310A of the ultrafiltration membrane filament 231A of the secondary filter element 23A is connected to the clean water outlet 2301A of the secondary filter element 23A.

[0317] As shown in the attached figure Figures 14A to 15EAs shown, the filter device 20A of the faucet water purifier according to an embodiment of the present invention further includes a base 24A, wherein the secondary filter element 23A is arranged on the base 24A, and the base 24A forms a first water chamber 2401A and a second water chamber 2402A, wherein the first water chamber 2401A of the base 24A is respectively connected to the clean water outlet 2301A of the secondary filter element 23A and the third connecting opening 203 of the filter device 20, and the second water chamber 2402A is respectively connected to the collecting channel 2331A of the collecting pipe 233A of the secondary filter element 23A and the second connecting opening 202 of the filter device 20. In other words, the membrane fiber channel 2310A of the ultrafiltration membrane filament 231A of the secondary filter element 23A is connected to the third communication opening 203 of the filter device 20 through the purified water outlet 2301A of the secondary filter element 23A and the first water cavity 2401A of the base 24A, so that the secondary purified water produced by the secondary filter element 23A can flow out of the third communication opening 203; and the flow collecting channel 2331A of the manifold 233A of the secondary filter element 23A is connected to the second communication opening 202 of the filter device 20 through the second water cavity 2402A of the base 24A, so that the purified water produced by the primary filter element 22 can flow out of the second communication opening 202. Accordingly, the secondary filter element 23A of the filter device 20A is an external pressure ultrafiltration filter element. Preferably, the second communication opening 202 and the third communication opening 203 are both provided on the base 24A. More preferably, the manifold 233A and the secondary filter element 23A are each watertightly disposed on the base 24A, with the first water chamber 2401A formed between the secondary filter element 23A and the base 24A, and the second water chamber 2402A formed between the manifold 233A and the base 24A. Optionally, the primary filter element 22 is watertightly disposed on the housing 21, and the secondary filter element 23A is each watertightly disposed on the base 24A.

[0318] As shown in the attached figure Figures 14A to 15EAs shown, the base 24A of the filter device 20A of the faucet water purifier according to an embodiment of the present invention includes a base portion 241, a first partition 242A, and a second partition 243A. The first partition 242A and the second partition 243A are both disposed on the base portion 241 and extend from the base portion 241. The first water chamber 2401A is disposed between the first partition 242A and the second partition 243A, and the second partition 243A encloses and forms the second water chamber 2402A. More preferably, the first partition 242A and the second partition 243A are both annular in shape, and the first partition 242A is disposed outside the second partition 243A. Accordingly, the second partition 243A is disposed between the first water chamber 2401A and the second water chamber 2402A, thereby separating the first water chamber 2401A from the second water chamber 2402A.

[0319] As shown in the attached figure Figures 14A to 15E As shown, according to an embodiment of the present invention, the clean water channel 2201A, the water collection hole 2330A, the collecting flow channel 2331A, the second water chamber 2402A of the base 24A, and the second connecting opening 202A of the filter device 20A of the faucet water purifier form a primary clean water waterway, and the membrane thread channel 2310A of the ultrafiltration membrane thread 231A of the secondary filter element 23A, the clean water outlet 2301A of the secondary filter element 23A, the first water chamber 2401A of the base 24A and the third connecting opening 203A of the filter device 20A form a secondary clean water waterway. It can be understood that the first-level purified water channel and the second-level purified water channel are separated to prevent the water in the first-level purified water channel and the second-level purified water channel from mixing. In other words, the first-level purified water channel and the second-level purified water channel are separated to prevent the purified water produced by the first-level filter element 22 from mixing into the purified water produced by the second-level filter element 23A.

[0320] As shown in the attached figure Figures 14A to 15E As shown, the secondary filter element 23A of the filter device 20A of the faucet water purifier according to an embodiment of the present invention further includes a housing 232A, wherein the ultrafiltration membrane filaments 231A of the secondary filter element 23A are disposed within the housing 232A, and the housing 232A has at least one water inlet 2320A, wherein the water inlet 2320A of the housing 232A communicates with the interior and exterior spaces of the housing 232A, so that when the faucet water purifier of the present invention is in the ultrafiltration operating state, the purified water produced by the primary filter element 22 can flow to the ultrafiltration membrane filaments 231A through the water inlet 2320A of the housing 232A under the action of water pressure. Therefore, the water inlet 2320A of the housing 232A of the secondary filter element 23A can be considered as part of the purified water channel 2201A of the filter device 20A.

[0321] As shown in the attached figure Figures 14A to 15E As shown, accordingly, when the filter device 20A of the faucet water purifier according to an embodiment of the present invention is used to treat raw water, the user can control the raw water to flow to the first connecting opening 201 of the filter device 20A through the control valve 10, and the raw water flows to the raw water channel 2101 of the filter device 20A under the action of water pressure. Under the action of water pressure, the raw water is processed by the primary filter element 22, and the purified water generated flows to the clean water channel 2201A. At this time, if the purified water in the clean water channel 2201A can flow freely through the second connecting opening 202 of the filter device 20A under the control of the control valve 10, and the purified water generated by the secondary filter element 23A cannot flow freely to the third connecting opening 203, then the purified water generated by the primary filter element 22 will flow out from the second connecting opening 202 under the action of water pressure and be provided. Accordingly, at this time, the faucet water purifier according to the embodiment of the present invention is in a filtering working state. The purified water produced by the primary filter element 22 will flow through the water collection hole 2330A of the manifold 233A, the manifold channel 2331A, the second water chamber 2402A, and the second connecting opening 202 in sequence, and be provided. On the other hand, if the purified water in the purified water channel 2201A is unable to flow freely through the second connecting opening 202 of the filtration device 20A under the control of the control valve 10, and the purified water produced by the secondary filter element 23A can flow freely to the third connecting opening 203, the purified water produced by the primary filter element 22 will be further purified by the secondary filter element 23A under the action of water pressure. The purified water produced by the secondary filter element 23A will flow out of the membrane fiber channel 2310A, and then flow out through the purified water outlet 2301A of the secondary filter element 23A, the first water chamber 2401A, and the third connecting opening 203, and be provided. Accordingly, at this time, the tap water purifier according to the embodiment of the present invention is in an ultrafiltration working state. Figures 14A to 15E As shown, further, the faucet water purifier according to an embodiment of the present invention also has a raw water supply working state, wherein when the faucet water purifier of the present invention is in the raw water supply working state, the user can control the raw water to flow directly to a raw water outlet through the control valve 10 to be provided, without passing through the filter device 20A and being purified by it.

[0322] Attached 16A to 17EWhat is shown is another optional implementation of the filtering device 20 of the faucet water purifier according to an embodiment of the present invention, wherein the filtering device 20B includes a housing 21, a primary filter element 22 and a secondary filter element 23B, wherein the housing 21 forms a first accommodating chamber 210, and the primary filter element 22 forms a second accommodating chamber 220, wherein the primary filter element 22 is arranged in the first accommodating chamber 210 of the housing 21, and the secondary filter element 23B is arranged in the second accommodating chamber 220 of the primary filter element 22, and the housing 21 and the primary filter element 22 form a raw water channel 2101 located therebetween, the primary filter element 22 and the secondary filter element 23B form a clean water channel 2201B located therebetween (the clean water channel 2201B can be regarded as part of the second accommodating chamber 220), and the secondary filter element 23B has a clean water outlet 2301B. Correspondingly, since the secondary filter element 23B is arranged in the second accommodating chamber 220 of the primary filter element 22, when the raw water flows into the raw water channel 2101 under the action of water pressure and is processed by the primary filter element 22, the purified water generated by the primary filter element 22 can flow to the secondary filter element 23B under the action of water pressure and be processed by the secondary filter element 23B to obtain cleaner secondary purified water. The secondary purified water flows out from the clean water outlet 2301B under the action of water pressure to be provided.

[0323] As shown in the attached figure 16A to 17EAs shown, the secondary filter element 23B of the filtering device 20B of the faucet water purifier according to an embodiment of the present invention includes a group of ultrafiltration membrane filaments 231B and a collecting pipe 233B, wherein the ultrafiltration membrane filaments 231B of the secondary filter element 23B and the collecting pipe 233B are both arranged in the second accommodating cavity 220 of the primary filter element 22, and the ultrafiltration membrane filaments 231B are arranged around the collecting pipe 233B, wherein each of the ultrafiltration membrane filaments 231B forms a membrane filament channel 2310B, and the collecting pipe 233B has at least one water collection hole 2330B and a collecting channel 2331B. The ends of the membrane fiber channel 2310B of the ultrafiltration membrane filament 231B are respectively connected to the clean water channel 2201B and the second communication opening 202. The collecting channel 2331B is respectively connected to the water collection hole 2330B and the clean water outlet 2301B of the secondary filter element 23B. As a result, the purified water produced by the primary filter element 22 can flow through the clean water channel 2201B to the ultrafiltration membrane filament 231B under the action of water pressure, and then flow through the membrane fiber channel 2310B of the ultrafiltration membrane filament 231B to the second communication opening 202 of the filtration device 20. Accordingly, the clean water outlet 2301B of the secondary filter element 23B forms the water outlet of the collecting channel 2331B. It can be understood that when the second connecting opening 202 of the filter device 20 is blocked, the purified water produced by the first-level filter element 22 flows into the membrane thread channel 2310B of the ultrafiltration membrane thread 231B of the secondary filter element 23B, and under the action of water pressure, the ultrafiltration membrane thread 231B of the secondary filter element 23B further filters the purified water produced by the first-level filter element 22 and produces secondary purified water. The purified water produced by the secondary filter element 23B flows to the collecting pipe 233B through the gaps between the ultrafiltration membrane threads 231B, and flows into the collecting channel 2331B of the collecting pipe 233B through the water collecting hole 2330B of the collecting pipe 233B, and then flows out from the clean water outlet 2301B of the secondary filter element 23B and the third connecting opening 203. In addition, when the purified water produced by the primary filter element 22 flows through the membrane thread channel 2310B of the ultrafiltration membrane thread 231B of the secondary filter element 23B to the second connecting opening 202 of the filtration device 20, the purified water produced by the primary filter element 22 produces a flushing effect on the ultrafiltration membrane thread 231B of the secondary filter element 23B, thereby enabling the ultrafiltration membrane thread 231B of the secondary filter element 23B to have a better filtering effect and extend the service life of the secondary filter element 23B.

[0324] As shown in the attached figure 16A to 17EAs shown, the ultrafiltration membrane filament 231B of the secondary filter element 23B of the filter device 20B of the faucet water purifier according to an embodiment of the present invention includes a first end 2311B, a second end 2312B, and an ultrafiltration portion 2313B extending between the first end 2311B and the second end 2312B, wherein the first end 2311B of the ultrafiltration membrane filament 231B of the secondary filter element 23B is disposed toward the primary filter element 22, and the second end 2312B of the ultrafiltration membrane filament 231B of the secondary filter element 23B is disposed toward the base 24B of the filter device 20B. It can be understood that the first end 2311B of the ultrafiltration membrane filament 231B is connected to the water purification channel 2201B, and the second end 2312B of the ultrafiltration membrane filament 231B is connected to the second communication opening 202.

[0325] As shown in the attached figure 16A to 17EAs shown, according to an embodiment of the present invention, the secondary filter element 23B of the filter device 20B of the faucet water purifier further includes a shell 232B, a first sealing portion 234B and a second sealing portion 235B, wherein the shell 232B forms a clean water chamber 2320B and two openings 2321B respectively connected to the clean water chamber 2320B, the collecting pipe 233B further includes an opening portion 2332B extending from the collecting channel 2331B, wherein the clean water outlet 2301B is arranged at the opening portion 2332B, wherein the first sealing portion 234B and the second sealing portion 235B are respectively sealed and arranged at the two openings 2321B of the shell 232B, the first end 2311B of the ultrafiltration membrane filament 231B is sealed and arranged at the first sealing portion 234B, and the second end 2312B is sealed and arranged at the second sealing portion 235B. The ultrafiltration part 2313B is arranged in the clean water cavity 2320B of the housing 232B, the water collecting hole 2330B and the collecting channel 2331B of the manifold 233B are arranged in the clean water cavity 2320B, and the opening 2332B of the manifold 233B is arranged in the second sealing part 235B, so that the purified water produced by the primary filter element 22 can flow into the first end 2311B of the ultrafiltration membrane filament 231B from the first end 2311B of the ultrafiltration membrane filament 231B. The membrane thread channel 2310B of the ultrafiltration membrane thread 231B generates purified water after being filtered by the ultrafiltration part 2313B of the ultrafiltration membrane thread 231B and flows into the clean water chamber 2320B. Then, under the action of water pressure, it is collected by the water collection hole 2330B of the collecting pipe 233B and flows to the third connecting opening 203 through the collecting channel 2331B, the opening 2332B of the collecting pipe 233B, and the clean water outlet 2301B. In other words, the two sealing parts 234B and 235B of the secondary filter element 23B are respectively and hermetically arranged at the two open ends of the housing 232B, and the two ends of the ultrafiltration membrane filament 231B are respectively and hermetically arranged at the sealing parts 234B and 235B of the secondary filter element 23B, so that the housing 232B, the sealing parts 234B and 235B of the secondary filter element 23B are surrounded to form a water purification chamber 232B accommodating the ultrafiltration part 2313B of the ultrafiltration membrane filament 231B, the water collection hole 2330B of the manifold 233B and the manifold channel 2331B. 0B, so that the purified water generated by the first-stage filter element 22 can flow from the first end 2311B of the ultrafiltration membrane thread 231B into the membrane thread channel 2310B of the ultrafiltration membrane thread 231B, and after being filtered by the ultrafiltration part 2313B of the ultrafiltration membrane thread 231B, the purified water is generated and flows into the clean water cavity 2320B, and then, under the action of water pressure, is collected by the water collecting hole 2330B of the collecting pipe 233B and flows to the third connecting opening 203 through the collecting channel 2331B, the opening 2332B of the collecting pipe 233B, and the clean water outlet 2301B.It can be understood that because the two sealing portions 234B and 235B of the secondary filter element 23B are respectively sealedly disposed at the two open ends of the housing 232B, and the two ends of the ultrafiltration membrane filament 231B are respectively sealedly disposed at the sealing portions 234B and 235B of the secondary filter element 23B, the primary purified water generated by the primary filter element 22 within the second accommodating chamber 220 of the primary filter element 22 cannot enter the purified water chamber 2320B of the secondary filter element 23B. Accordingly, the two sealing portions 234B and 235B of the secondary filter element 23B are water-tightly sealed from the housing 232B, and the ultrafiltration membrane filament 231B is water-tightly sealed from the sealing portions 234B and 235B of the secondary filter element 23B.

[0326] As shown in the attached figure 16A to 17E As shown, the filter device 20B of the faucet water purifier according to an embodiment of the present invention further includes a base 24B, wherein the secondary filter element 23B is arranged on the base 24B, and the base 24B forms a first water chamber 2401B and a second water chamber 2402B, wherein the first water chamber 2401B of the base 24B is respectively connected to the clean water outlet 2301B of the secondary filter element 23B and the third connecting opening 203 of the filter device 20, and the second water chamber 2402B is respectively connected to the membrane wire channel 2310B of the ultrafiltration membrane wire 231B of the secondary filter element 23B and the second connecting opening 202 of the filter device 20B. In other words, the membrane fiber channels 2310B of the ultrafiltration membrane filaments 231B of the secondary filter element 23B are connected to the second communication opening 202 of the filter device 20 through the second water cavity 2402B of the base 24B, so that the purified water produced by the primary filter element 22 can flow out of the second communication opening 202. The collecting channels 2331B of the manifold 233B of the secondary filter element 23B are connected to the third communication opening 203 of the filter device 20B through the purified water outlet 2301B of the secondary filter element 23B and the first water cavity 2401B of the base 24B, so that the secondary purified water produced by the secondary filter element 23B can flow out of the third communication opening 203. Accordingly, the secondary filter element 23B is an internal pressure filter element. Preferably, the second communication opening 202 and the third communication opening 203 are both provided on the base 24B. More preferably, the manifold 233B and the secondary filter element 23B are respectively arranged water-tightly on the base 24B, and the second water chamber 2402B is formed between the secondary filter element 23B and the base 24B, and the first water chamber 2401B is formed between the manifold 233B and the base 24B.

[0327] As shown in the attached figure 16A to 17EAs shown, the base 24B of the filter device 20B of the faucet water purifier according to an embodiment of the present invention includes a base portion 241, a first spacer 242B, and a second spacer 243B. The first spacer 242B and the second spacer 243B are both disposed on the base portion 241 and extend from the base portion 241. The second water chamber 2402B is disposed between the first spacer 242B and the second spacer 243B, and the first spacer 242B encloses the first water chamber 2401B. More preferably, the first spacer 242B and the second spacer 243B are both annular in shape, and the second spacer 243B is disposed outside the first spacer 242B. Accordingly, the first spacer 242B is disposed between the first water chamber 2401B and the second water chamber 2402B, thereby separating the first water chamber 2401B from the second water chamber 2402B.

[0328] As shown in the attached figure 16A to 17E As shown, according to an embodiment of the present invention, the clean water channel 2201B, the membrane fiber channel 2310B, the second water chamber 2402B of the base 24B, and the second connecting opening 202B of the filter device 20B of the faucet water purifier form a primary clean water waterway, and the water collecting hole 2330B of the secondary filter element 23B, the collecting channel 2331B, the clean water outlet 2301B of the secondary filter element 23B, the first water chamber 2401B of the base 24B and the third connecting opening 203B of the filter device 20B form a secondary clean water waterway. It can be understood that the first-level purified water channel and the second-level purified water channel are separated to prevent the water in the first-level purified water channel and the second-level purified water channel from mixing. In other words, the first-level purified water channel and the second-level purified water channel are separated to prevent the purified water produced by the first-level filter element 22 from mixing into the purified water produced by the second-level filter element 23B.

[0329] As shown in the attached figure 16A to 17EAs shown, accordingly, when the filter device 20B of the faucet water purifier according to an embodiment of the present invention is used to process raw water, the user can control the raw water to flow to the first communication opening 201 of the filter device 20B through the control valve 10. The raw water flows to the raw water channel 2101 of the filter device 20B under the action of water pressure. The raw water is processed by the primary filter element 22 under the action of water pressure, and the purified water generated flows to the clean water channel 2201B. At this time, if the clean water channel 2201 Under the control of the control valve 10, the purified water in B can flow freely through the second communication opening 202 of the filter device 20B, while the purified water produced by the secondary filter element 23B cannot flow freely to the third communication opening 203. Then, under the action of water pressure, the purified water produced by the primary filter element 22 will flow in from the first end 2311B of the ultrafiltration membrane filament 231B, flow out from the second end 2312B of the ultrafiltration membrane filament 231B, and then flow out from the second communication opening 202 and be provided. Accordingly, at this time, the faucet water purifier according to the embodiment of the present invention is in a filtering working state, and the purified water produced by the primary filter element 22 will flow through the purified water channel 2201B, the membrane channel 2310B of the ultrafiltration membrane filament 231B, the second water chamber 2402B, the second communication opening 202, and be provided. On the other hand, if the purified water in the clean water channel 2201B cannot flow freely through the second connecting opening 202 of the filter device 20B under the control of the control valve 10, and the purified water produced by the secondary filter element 23B can flow freely to the third connecting opening 203, then the purified water produced by the primary filter element 22 will flow in from the first end 2311B of the ultrafiltration membrane filament 231B under the action of water pressure, and after ultrafiltration treatment by the ultrafiltration membrane filament 231B, it will be collected through the water collecting hole 2330B and the collecting channel 2331B of the collecting pipe 233B, and then flow out and be provided through the clean water outlet 2301B of the secondary filter element 23B, the first water chamber 2401B, and the third connecting opening 203. Accordingly, at this time, the faucet water purifier according to the embodiment of the present invention is in an ultrafiltration working state. As shown in the accompanying drawings 16A to 17E As shown, further, the faucet water purifier according to an embodiment of the present invention also has a raw water supply working state, wherein when the faucet water purifier of the present invention is in the raw water supply working state, the user can control the raw water to flow directly to a raw water outlet through the control valve 10 to be provided, without passing through the filter device 20B and being purified by it.

[0330] Attached Figures 18A to 19EThe figure shows another alternative embodiment of the filter device 20 of the faucet water purifier according to an embodiment of the present invention. The filter device 20C includes a housing 21 and a primary filter cartridge 22C. The housing 21 forms a first accommodating chamber 210. The primary filter cartridge 22C is disposed within the first accommodating chamber 210 of the housing 21. The housing 21 and the primary filter cartridge 22C define a raw water channel 2101C therebetween (the raw water channel 2101C can be considered a portion of the first accommodating chamber 210). The primary filter cartridge 22C has a purified water outlet 2201C. Accordingly, when raw water flows into the raw water channel 2101C under the action of water pressure, it is processed by the primary filter cartridge 22C under the action of water pressure to produce purified water. The purified water produced by the primary filter cartridge 22C then flows out of the purified water outlet 2201C of the primary filter cartridge 22C under the action of water pressure to be provided.

[0331] As shown in the attached figure Figures 18A to 19EAs shown, according to an embodiment of the present invention, the first-stage filter element 22C of the filter device 20C of the faucet water purifier includes a group of ultrafiltration membrane threads 231C and a collecting pipe 233C, wherein the ultrafiltration membrane threads 231C of the first-stage filter element 22C and the collecting pipe 233C are both arranged in the first accommodating cavity 210, and the ultrafiltration membrane threads 231C are arranged around the collecting pipe 233C, wherein each of the ultrafiltration membrane threads 231C forms a membrane thread channel 2310C, and the collecting pipe 233C has at least one water collection hole 2330C and a collecting channel 2331C, wherein the membrane thread channel 2310C of the ultrafiltration membrane thread 231C is connected to the clean water outlet 2201C of the first-stage filter element 22C, and the clean water outlet 2201C of the first-stage filter element 22C is connected to the third connecting opening 203 of the filter device 20C, and the collecting channel 2331C is arranged respectively The water in the raw water channel 2101C is connected to the water collecting hole 2330C and the second connecting opening 202 of the filter device 20, so that the water in the raw water channel 2101C can flow to the ultrafiltration membrane filament 231C under the action of water pressure, and flow to the collecting pipe 233C through the gaps between the ultrafiltration membrane filaments 231C, and be collected through the water collecting hole 2330C of the collecting pipe 233C and flow through the collecting channel 2331C to the first connecting opening 202 of the filter device 20. The second communication opening 202 allows the water in the raw water channel 2101C to flow to the ultrafiltration membrane filaments 231C of the primary filter element 22C under the action of water pressure and be filtered by the ultrafiltration membrane filaments 231C. The purified water produced by the ultrafiltration membrane filaments 231C of the primary filter element 22C flows through the membrane filament channel 2310C to the purified water outlet 2201C of the primary filter element 22C and the third communication opening 203 of the filtration device 20. It can be understood that when the raw water flows through the gap between the raw water channel 2101C and the ultrafiltration membrane filaments 231C to the manifold 233C, the raw water flushes the ultrafiltration membrane filaments 231C of the primary filter element 22C, thereby improving the filtration effect of the ultrafiltration membrane filaments 231C of the primary filter element 22C and extending the service life of the primary filter element 22C.

[0332] As shown in the attached figure Figures 18A to 19EAs shown, the filter device 20C of the faucet water purifier according to an embodiment of the present invention further includes a base 24C, wherein the first-level filter element 22C is arranged on the base 24C, and the base 24C forms a first water chamber 2401C and a second water chamber 2402C, wherein the first water chamber 2401C of the base 24C is respectively connected to the clean water outlet 2201C of the first-level filter element 22C and the third connecting opening 203 of the filter device 20, and the second water chamber 2402C is respectively connected to the collecting channel 2331C of the collecting pipe 233C of the first-level filter element 22C and the second connecting opening 202 of the filter device 20. In other words, the membrane thread channel 2310C of the ultrafiltration membrane filament 231C of the primary filter element 22C is connected to the third communication opening 203 of the filter device 20 through the purified water outlet 2201C of the primary filter element 22C and the first water cavity 2401C of the base 24C, allowing the purified water produced by the primary filter element 22C to flow out of the third communication opening 203. The collecting channel 2331C of the manifold 233C of the primary filter element 22C is connected to the second communication opening 202 of the filter device 20 through the second water cavity 2402C of the base 24C, allowing the raw water to flow out of the second communication opening 202. Accordingly, the primary filter element 22C of the filter device 20C is an external pressure ultrafiltration filter element. Preferably, the second communication opening 202 and the third communication opening 203 are both provided on the base 24C. More preferably, the manifold 233C and the primary filter element 22C are respectively arranged water-tightly on the base 24C, and the first water chamber 2401C is formed between the primary filter element 22C and the base 24C, and the second water chamber 2402C is formed between the manifold 233C and the base 24C.

[0333] As shown in the attached figure Figures 18A to 19E As shown, the base 24C of the filter device 20C of the faucet water purifier according to an embodiment of the present invention includes a base portion 241, a first partition 242C, and a second partition 243C. The first partition 242C and the second partition 243C are both disposed on the base portion 241 and extend from the base portion 241. The first water chamber 2401C is disposed between the first partition 242C and the second partition 243C, and the second partition 243C encloses the second water chamber 2402C. More preferably, the first partition 242C and the second partition 243C are both annular in shape, and the first partition 242C is disposed outside the second partition 243C. Accordingly, the second partition 243C is disposed between the first water chamber 2401C and the second water chamber 2402C, thereby separating the first water chamber 2401C from the second water chamber 2402C.

[0334] As shown in the attached figure Figures 18A to 19E As shown, according to an embodiment of the present invention, the raw water channel 2101C of the filter device 20C of the faucet water purifier, the water collection hole 2330C of the primary filter element 22C, the flow collection channel 2331C, the second water chamber 2402C of the base 24C, and the second communication opening 202 of the filter device 20C form a raw water channel, while the membrane fiber channel 2310C of the primary filter element 22C, the purified water outlet 2201C, the first water chamber 2401C of the base 24C, and the third communication opening 203 of the filter device 20C form a purified water channel. It will be understood that the raw water channel and the purified water channel are separated to prevent the water in the raw water channel and the purified water channel from mixing. In other words, the raw water channel and the purified water channel are separated to prevent raw water from mixing with the purified water produced by the primary filter element 22C.

[0335] As shown in the attached figure Figures 18A to 19E As shown, the primary filter element 22C of the filter device 20C of the faucet water purifier according to an embodiment of the present invention further includes a housing 232C, wherein the ultrafiltration membrane filaments 231C of the primary filter element 22C are disposed within the housing 232C, and the housing 232C has at least one water inlet 2320C, wherein the water inlet 2320C of the housing 232C communicates with the interior and exterior spaces of the housing 232C, so that when the faucet water purifier of the present invention is in the ultrafiltration operating state, raw water can flow through the water inlet 2320C of the housing 232C under the action of water pressure to the ultrafiltration membrane filaments 231C. Therefore, the water inlet 2320C of the housing 232C of the primary filter element 22C can be considered as part of the raw water channel 2101C of the filter device 20C.

[0336] As shown in the attached figure Figures 18A to 19EAs shown, accordingly, when the filter device 20C of the faucet water purifier according to an embodiment of the present invention is used to process raw water, the user can control the raw water to flow to the first communication opening 201 of the filter device 20C through the control valve 10. At this time, if the raw water can flow freely through the second communication opening 202 of the filter device 20C under the control of the control valve 10, and the purified water produced by the primary filter element 22C cannot flow freely to the third communication opening 203, the raw water will flow out of the second communication opening 202 under the action of water pressure and be provided. The raw water will flow through the raw water channel 2101C, the water inlet 2320C, the water collection hole 2330C of the manifold 233C, the manifold channel 2331C, the second water chamber 2402C, the second communication opening 202, and be provided. On the other hand, if the raw water cannot flow freely through the second communication opening 202 of the filter device 20C under the control of the control valve 10, but the purified water produced by the primary filter element 22C can flow freely to the third communication opening 203, then the raw water will be purified by the primary filter element 22C under the action of water pressure, and the purified water produced by the primary filter element 22C will flow out of the membrane fiber channel 2310C, then flow out and be provided through the purified water outlet 2201C of the primary filter element 22C, the first water chamber 2401C, and the third communication opening 203. Accordingly, at this time, the faucet water purifier according to this embodiment of the present invention is in an ultrafiltration working state.

[0337] Attached Figures 20A to 21E What is shown is another optional implementation of the filter device 20 of the faucet water purifier according to an embodiment of the present invention, wherein the filter device 20D includes a housing 21 and a primary filter element 22D, wherein the housing 21 forms a first accommodating cavity 210, wherein the primary filter element 22D is arranged in the first accommodating cavity 210 of the housing 21, and the housing 21 and the primary filter element 22D form a raw water channel 2101D located therebetween (the raw water channel 2101D can be regarded as a part of the first accommodating cavity 210), and the primary filter element 22D has a clean water outlet 2201D. Accordingly, when raw water flows into the raw water channel 2101D from the first connecting opening 201 of the filter device 20D under the action of water pressure, the raw water can flow to the primary filter element 22D under the action of water pressure and be processed by the primary filter element 22D to obtain purified water. The purified water generated by the primary filter element 22D flows out from the clean water outlet 2201D of the primary filter element 22D under the action of water pressure to be provided.

[0338] As shown in the attached figure Figures 20A to 21EAs shown, the first-stage filter element 22D of the filter device 20D of the faucet water purifier according to an embodiment of the present invention includes a group of ultrafiltration membrane wires 221D and a collecting pipe 223D, wherein the ultrafiltration membrane wires 221D of the first-stage filter element 22D and the collecting pipe 223D are both arranged in the first accommodating cavity 210 of the housing 21, and the ultrafiltration membrane wires 221D are arranged around the collecting pipe 223D, wherein each of the ultrafiltration membrane wires 221D forms a membrane wire channel 2210D, and the collecting pipe 223D has at least one water collection hole 2230D and a collecting channel 2210D. 231D, wherein the two ends of the membrane thread channel 2210D of the ultrafiltration membrane thread 221D are respectively connected to the raw water channel 2101D and the second communication opening 202, and the collecting channel 2231D is respectively connected to the water collection hole 2230D and the purified water outlet 2201D of the primary filter element 22D, so that raw water can flow through the raw water channel 2101D to the ultrafiltration membrane thread 221D under the action of water pressure, and then flow through the membrane thread channel 2210D of the ultrafiltration membrane thread 221D to the second communication opening 202 of the filtration device 20. Accordingly, the purified water outlet 2201D of the primary filter element 22D forms the water outlet of the collecting channel 2231D. It can be understood that when the second connecting opening 202 of the filter device 20 is blocked, the raw water flows into the membrane thread channel 2210D of the ultrafiltration membrane thread 221D of the first-level filter element 22D. Under the action of water pressure, the ultrafiltration membrane thread 221D of the first-level filter element 22D filters the raw water and produces purified water. The purified water produced by the first-level filter element 22D flows to the collecting pipe 223D through the gaps between the ultrafiltration membrane threads 221D, and flows into the collecting channel 2231D of the collecting pipe 223D through the water collecting hole 2230D of the collecting pipe 223D, and then flows out from the clean water outlet 2201D of the first-level filter element 22D and the third connecting opening 203. In addition, when the raw water flows through the membrane thread channel 2210D of the ultrafiltration membrane thread 221D of the first-level filter element 22D to the second connecting opening 202 of the filtration device 20, the raw water produces a flushing effect on the ultrafiltration membrane thread 221D of the first-level filter element 22D, thereby enabling the ultrafiltration membrane thread 221D of the first-level filter element 22D to have a better filtering effect and extend the service life of the first-level filter element 22D.

[0339] As shown in the attached figure Figures 20A to 21EAs shown, according to an embodiment of the present invention, the ultrafiltration membrane filament 221D of the first-stage filter element 22D of the filter device 20D of the faucet water purifier includes a first end 2211D, a second end 2212D and an ultrafiltration portion 2213D extending between the first end 2211D and the second end 2212D, wherein the first end 2211D of the ultrafiltration membrane filament 221D of the first-stage filter element 22D is arranged to face the outer casing 21, and the second end 2212D of the ultrafiltration membrane filament 221D of the first-stage filter element 22D is arranged to face the base 24D of the filter device 20D.

[0340] As shown in the attached figure Figures 20A to 21EAs shown, according to an embodiment of the present invention, the first-stage filter element 22D of the filter device 20D of the faucet water purifier further includes a shell 222D, a first sealing portion 224D and a second sealing portion 225D, wherein the shell 222D forms a clean water chamber 2220D and two openings 2221D respectively connected to the clean water chamber 2220D, the collecting pipe 223D includes an opening portion 2232D extending from the collecting channel 2231D, wherein the clean water outlet 2201D is arranged at the opening portion 2232D, wherein the first sealing portion 224D and the second sealing portion 225D are respectively sealed and arranged at the two openings 2221D of the shell 222D, the first end 2211D of the ultrafiltration membrane filament 221D is sealed and arranged at the first sealing portion 224D, and the second end 2212D is sealed and arranged at the second sealing portion 22 5D, the ultrafiltration part 2213D is arranged in the water purification chamber 2220D of the housing 222D, the water collecting hole 2230D and the collecting channel 2231D of the collecting pipe 223D are arranged in the water purification chamber 2220D, and the opening 2232D of the collecting pipe 223D is arranged in the second sealing part 225D, so that the raw water can flow into the ultrafiltration membrane from the first end 2211D of the ultrafiltration membrane 221D. The membrane thread channel 2210D of the membrane thread 221D generates purified water after being filtered by the ultrafiltration part 2213D of the ultrafiltration membrane thread 221D and flows into the clean water chamber 2220D. Then, under the action of water pressure, it is collected by the water collection hole 2230D of the collecting pipe 223D and flows to the third connecting opening 203 through the collecting channel 2231D, the opening 2232D of the collecting pipe 223D, and the clean water outlet 2201D. In other words, the two sealing parts 224D and 225D of the first-stage filter element 22D are respectively and hermetically arranged at the two open ends of the housing 222D, and the two ends of the ultrafiltration membrane filament 221D are respectively and hermetically arranged at the sealing parts 224D and 225D of the first-stage filter element 22D, so that the housing 222D, the sealing parts 224D and 225D of the first-stage filter element 22D are surrounded to form a clean water cavity 2220D containing the ultrafiltration part 2213D of the ultrafiltration membrane filament 221D, the water collection hole 2230D and the flow collecting channel 2231D, so that the raw water Under the action of water pressure, the raw water can flow from the first end 2211D of the ultrafiltration membrane filament 221D into the membrane filament channel 2210D of the ultrafiltration membrane filament 221D through the raw water channel 2101D, and after being filtered by the ultrafiltration part 2213D of the ultrafiltration membrane filament 221D, purified water is generated and flows into the clean water chamber 2220D. Then, under the action of water pressure, it is collected by the water collecting hole 2230D of the collecting pipe 223D and flows to the third connecting opening 203 through the collecting channel 2231D, the opening 2232D of the collecting pipe 223D, and the clean water outlet 2201D.It can be understood that because the two sealing portions 224D and 225D of the primary filter element 22D are respectively sealedly disposed at the two open ends of the housing 222D, and the two ends of the ultrafiltration membrane filament 221D are respectively sealedly disposed at the sealing portions 224D and 225D of the primary filter element 22D, the raw water in the raw water channel 2101D cannot enter the purified water cavity 2220D of the primary filter element 22D. Accordingly, the two sealing portions 224D and 225D of the primary filter element 22D are watertightly sealed against the housing 222D, and the ultrafiltration membrane filament 221D is watertightly sealed against the sealing portions 224D and 225D of the primary filter element 22D.

[0341] As shown in the attached figure Figures 20A to 21E As shown, the filter device 20D of the faucet water purifier according to an embodiment of the present invention further includes a base 24D, wherein the first-stage filter element 22D is arranged on the base 24D, and the base 24D forms a first water chamber 2401D and a second water chamber 2402D, wherein the first water chamber 2401D of the base 24D is respectively connected to the clean water outlet 2201D of the first-stage filter element 22D and the third connecting opening 203 of the filter device 20, and the second water chamber 2402D is respectively connected to the membrane wire channel 2210D of the ultrafiltration membrane wire 221D of the first-stage filter element 22D and the second connecting opening 202 of the filter device 20D. In other words, the membrane fiber channel 2210D of the ultrafiltration membrane filament 221D of the primary filter element 22D is connected to the second communication opening 202 of the filter device 20 through the second water cavity 2402D of the base 24D, so that raw water can flow out of the second communication opening 202. The collecting channel 2231D of the manifold 223D of the primary filter element 22D is connected to the third communication opening 203 of the filter device 20D through the purified water outlet 2201D of the primary filter element 22D and the first water cavity 2401D of the base 24D, so that purified water produced by the primary filter element 22D can flow out of the third communication opening 203. Accordingly, the primary filter element 22D is an internal pressure filter element. Preferably, the second communication opening 202 and the third communication opening 203 are both provided on the base 24D. More preferably, the manifold 223D and the primary filter element 22D are respectively arranged water-tightly on the base 24D, and the second water chamber 2402 is formed between the primary filter element 22D and the base 24D, and the first water chamber 2401D is formed between the manifold 223D and the base 24D.

[0342] As shown in the attached figure Figures 20A to 21EAs shown, the base 24D of the filter device 20D of the faucet water purifier according to an embodiment of the present invention includes a base portion 241, a first spacer 242D, and a second spacer 243D. The first spacer 242D and the second spacer 243D are both disposed on the base portion 241 and extend from the base portion 241. The second water chamber 2402D is disposed between the first spacer 242D and the second spacer 243D. The first spacer 242D encloses the first water chamber 2401D. More preferably, the first spacer 242D and the second spacer 243D are both annular in shape, and the second spacer 243D is disposed outside the first spacer 242D. Accordingly, the first spacer 242D is disposed between the first water chamber 2401D and the second water chamber 2402D, thereby separating the first water chamber 2401D from the second water chamber 2402D.

[0343] As shown in the attached figure Figures 20A to 21E As shown, accordingly, when the filter device 20D of the faucet water purifier according to an embodiment of the present invention is used to treat raw water, the user can control the raw water to flow to the first communication opening 201 of the filter device 20D through the control valve 10. At this time, if the raw water can flow freely through the second communication opening 202 of the filter device 20D under the control of the control valve 10, while the purified water produced by the primary filter element 22D cannot flow freely to the third communication opening 203, the raw water will flow into the first end 2211D of the ultrafiltration membrane filament 221D under the action of water pressure, flow out of the second end 2212D of the ultrafiltration membrane filament 221D, and then flow out of the second communication opening 202 and be provided. The raw water will flow through the purified water outlet 2201D, the membrane channel 2210D of the ultrafiltration membrane filament 221D, the second water chamber 2402D, and the second communication opening 202 in sequence and be provided. On the other hand, if the raw water cannot flow freely through the second communication opening 202 of the filter device 20D under the control of the control valve 10, while the purified water produced by the primary filter element 22D can flow freely toward the third communication opening 203, the raw water will flow into the first end 2211D of the ultrafiltration membrane filament 221D under the action of water pressure, and after ultrafiltration treatment by the ultrafiltration membrane filament 221D, it will be collected through the water collection hole 2230D and the collection channel 2231D of the manifold 223D, and then flow out and be provided through the purified water outlet 2201D of the primary filter element 22D, the first water chamber 2401D, and the third communication opening 203. Accordingly, at this time, the faucet water purifier according to the embodiment of the present invention is in an ultrafiltration working state.

[0344] As shown in the attached figure Figures 20A to 21EAs shown, according to an embodiment of the present invention, the raw water channel 2101D, the membrane fiber channel 2210D, the second water chamber 2402D of the base 24D, and the second connecting opening 202D of the filter device 20D of the faucet water purifier form a raw water channel, and the water collection hole 2230D, the flow collection channel 2231D, the clean water outlet 2201D, the first water chamber 2401D of the base 24D, and the third connecting opening 203D of the filter device 20D form a clean water channel. It can be understood that the raw water channel and the clean water channel are separated to prevent the water in the raw water channel and the clean water channel from mixing. In other words, the raw water channel and the clean water channel are separated to prevent raw water from mixing with the purified water produced by the first filter element 22D.

[0345] Preferably, the filter device 20 of the faucet water purifier of the present invention adopts an external pressure ultrafiltration filter element. In some other embodiments, the filter device 20 of the faucet water purifier of the present invention adopts an internal pressure ultrafiltration filter element. Since the membrane surface area of ​​the internal pressure ultrafiltration membrane filament that can be accommodated is smaller under the same ultrafiltration filter element volume, the water flow rate generated by the internal pressure ultrafiltration filter element is relatively small. Therefore, when an internal pressure ultrafiltration filter element is used, the ultrafiltration filter element is required to have a larger outer diameter or be thicker. This results in a larger volume of the internal pressure ultrafiltration filter element under the same purified water flow rate.

[0346] Attached Figures 22 to 30C The figure shows an optional implementation of the flat valve 10 of the faucet water purifier according to an embodiment of the present invention, wherein the flat valve 10A of the faucet water purifier according to an embodiment of the present invention includes a valve body 11 and a valve core 12A, wherein the valve body 11 forms a valve cavity 110, a first opening 1101, a second opening 1102, a third opening 1103, a fourth opening 1104, a fifth opening 1105 and a raw water inlet 1107, wherein the first opening 1101 of the valve body 11 is adapted to communicate with the first opening 2 of the filter device 20. 01, the second opening 1102 of the valve body 11 is suitable for being connected to the second communicating opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is suitable for being connected to the third communicating opening 203 of the filter device 20, the fifth opening 1105 of the valve body 11 is suitable for being connected to a first water outlet 100, the third opening 1103 of the valve body 11 is suitable for being connected to a second water outlet 200, the raw water inlet 1107 of the valve body 11 is suitable for being connected to a raw water source, and the valve core 12A is arranged in the valve cavity 110.

[0347] As shown in the attached figure Figures 22 to 30CAs shown, the valve core 12A of the planar valve 10A of the present invention further includes a fixed valve plate 121A and a movable valve plate 122A, wherein the fixed valve plate 121A has a first fluid control surface 1210A, and the movable valve plate 122A has a second fluid control surface 1220A, wherein the movable valve plate 122A and the fixed valve plate 121A are both arranged in the valve cavity 110, wherein the second fluid control surface 1220A of the movable valve plate 122A is arranged on the first fluid control surface 1210A of the fixed valve plate 121A, and the movable valve plate 122A is arranged to be able to rotate relative to the fixed valve plate 121A.

[0348] As shown in the attached figure Figures 22 to 30C As shown, further, the flat valve 10A of the faucet water purifier according to an embodiment of the present invention has a first channel 101A, a second channel 102A, a third channel 103A, a fourth channel 104A, a fifth channel 105A, a sixth channel 106A, a seventh channel 107A and an eighth channel 108A, wherein the first channel 101A, the second channel 102A, the third channel 103A, the fourth channel 104A and the fifth channel 105A are respectively provided on the fixed valve plate 121A and extend from the first fluid control surface 1210A of the fixed valve plate 121A. The sixth channel 106A, the seventh channel 107A, and the eighth channel 108A are respectively provided on the movable valve disc 122A and extend from the second fluid control surface 1220A of the movable valve disc 122A. The first channel 101A is connected to the first opening 1101, the second channel 102A is connected to the second opening 1102, the third channel 103A is connected to the third opening 1103, the fourth channel 104A is connected to the fourth opening 1104, the fifth channel 105A is connected to the fifth opening 1105, and the seventh channel 107A is connected to the raw water inlet 1107. Preferably, the raw water inlet 1107 and the seventh channel 107A are respectively connected to the valve chamber 110, so that the seventh channel 107A is connected to the raw water inlet 1107. It can be understood that the sixth channel 106A and the eighth channel 108A of the movable valve plate 122A are preferably conducting blind holes.

[0349] As shown in the attached figure Figures 22 to 30CAs shown, according to an embodiment of the present invention, the first channel 101A, the third channel 103A, the second channel 102A, the fourth channel 104A and the fifth channel 105A of the plane valve 10A of the faucet water purifier are arranged clockwise in this order on the first fluid control surface 1210A of the fixed valve plate 121A, and the seventh channel 107A, the sixth channel 106A and the eighth channel 108A are arranged clockwise in this order on the second fluid control surface 1220A of the movable valve plate 122A. Optionally, the first channel 101A, the third channel 103A, the second channel 102A, the fourth channel 104A and the fifth channel 105A of the planar valve 10A are arranged counterclockwise in this order on the first fluid control surface 1210A of the fixed valve plate 121A, and the seventh channel 107A, the sixth channel 106A and the eighth channel 108A are arranged counterclockwise in this order on the second fluid control surface 1220A of the movable valve plate 122A. Preferably, the first channel 101A, the third channel 103A, the second channel 102A, the fourth channel 104A and the fifth channel 105A of the planar valve 10A are separately arranged on the first fluid control surface 1210A of the fixed valve plate 121A, and the seventh channel 107A, the sixth channel 106A and the eighth channel 108A are separately arranged on the second fluid control surface 1220A of the movable valve plate 122A.

[0350] As shown in the attached figure Figures 22 to 30C As shown, according to an embodiment of the present invention, the movable valve disc 122A of the plane valve 10A of the faucet water purifier can rotate relative to the fixed valve disc 121A so that the plane valve 10A has a first working position and a second working position. When the plane valve 10A is in the first working position, the seventh channel 107A of the plane valve 10A is connected to the first channel 101A, thereby forming a first connecting channel 1001A respectively connected to the raw water inlet 1107 and the first opening 1101, and the eighth channel 108A is respectively connected to the fourth channel 104A and the fifth channel 105A, thereby forming A second communication channel 1002A is connected to the fourth opening 1104 and the fifth opening 1105 respectively; when the plane valve 10A is in the second working position, the seventh channel 107A of the plane valve 10A is connected to the first channel 101A, thereby forming a third communication channel 1003A connected to the raw water inlet 1107 and the first opening 1101 respectively, and the sixth channel 106A is connected to the second channel 102A and the third channel 103A respectively, thereby forming a fourth communication channel 1004A connected to the second opening 1102 and the third opening 1103 respectively. As shown in the accompanying drawings Figures 22 to 30CAs shown, when the flat valve 10A of the faucet water purifier according to an embodiment of the present invention is in the first working position, the second channel 102A of the flat valve 10A is only connected to the sixth channel 106A, and the sixth channel 106A is also only connected to the second channel 102A, so that the second channel 102A is blocked by the movable valve plate 122A and the water in the second channel 102A cannot flow freely. Preferably, the third channel 103A is blocked by the movable valve plate 122A. Accordingly, the first-level purified water produced by the first-level filter element 22 will flow to the second-level filter element 23 under the action of water pressure, and after being further purified by the second-level filter element 23, it will be provided through the fourth opening 1104, the second connecting channel 1002A and the fifth opening 1105. Accordingly, when the flat valve 10A of the faucet water purifier of the present invention is in the first working position, the faucet water purifier of the present invention is in its ultrafiltration working state. As shown in the accompanying drawings Figures 22 to 30C As shown, when the flat valve 10A of the faucet water purifier according to an embodiment of the present invention is in the second operating position, the fourth channel 104A of the flat valve 10A is connected only to the eighth channel 108A, and the eighth channel 108A is also connected only to the fourth channel 104A. This blocks the fourth channel 104A by the movable valve disc 122A, preventing water from flowing freely in the fourth channel 104A. Preferably, the fifth channel 105A is also blocked by the movable valve disc 122A. Accordingly, the primary purified water produced by the primary filter element 22, under the action of water pressure, flows toward the second opening 1102 and is provided through the fourth connecting channel 1004A and the third opening 1103. Accordingly, when the flat valve 10A of the faucet water purifier of the present invention is in the second operating position, the faucet water purifier of the present invention is in its filtering working state. Furthermore, when the flat valve 10A of the faucet water purifier according to the embodiment of the present invention is in the first working position, the first communication channel 1001A formed by the valve core 12A of the flat valve 10A connects the raw water inlet 1107 of the flat valve 10A with the first opening 1101. When the flat valve 10A of the faucet water purifier according to the embodiment of the present invention is in the second working position, the third communication channel 1003A formed by the valve core 12A of the flat valve 10A also connects the raw water inlet 1107 of the flat valve 10A with the first opening 1101. Both the first communication channel 1001A and the third communication channel 1003A are formed by the connection between the seventh channel 107A and the first channel 101A. Therefore, the first communication channel 1001A and the third communication channel 1003A can be considered the same communication channel.

[0351] As shown in the attached figure Figures 22 to 30CAs shown, the flat valve 10A of the faucet water purifier according to an embodiment of the present invention further has a third working position, wherein the valve body 11 of the flat valve 10A further forms a sixth opening 1106, and the flat valve 10A further has a raw water supply channel 109A, wherein the raw water supply channel 109A is arranged on the fixed valve plate 121A and extends from the first fluid control surface 1210A of the fixed valve plate 121A, and the raw water supply channel 109A is connected to the sixth opening 1106, wherein when the flat valve 10A is in the third working position, the seventh channel 107A of the flat valve 10A is connected to the raw water supply channel 109A, thereby forming the fifth connecting channel 1005A connected to the raw water inlet 1107 and the sixth opening 1106 respectively. As shown in the accompanying drawings Figures 22 to 30C As shown, when the flat valve 10A of the faucet water purifier according to an embodiment of the present invention is in the third operating position, the seventh channel 107A of the flat valve 10A is connected only to the raw water supply channel 109A. At this point, raw water flows in from the raw water inlet 1107 and further passes through the seventh channel 107A and the raw water supply channel 109A before flowing out of the sixth opening 1106. Accordingly, when the flat valve 10A of the faucet water purifier of the present invention is in the third operating position, the faucet water purifier of the present invention is in its raw water supply operating state. Furthermore, the raw water supply channel 109A is disposed between the first channel 101A and the fifth channel 105A.

[0352] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second water outlet 200, the third opening 1103 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the first water outlet 100, and the raw water inlet 1107 of the valve body 11 is connected to the raw water inlet 1108 of the valve body 11. The flat valve 10A is connected to the raw water source, so that when the flat valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10A, flows through the first communication channel 1001A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10A is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the fourth opening 1104, the second connecting channel 1002A and the fifth opening 1105 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the fifth opening 1105. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the third connecting channel 1003A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the fourth connecting channel 1004A and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.

[0353] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the second water outlet 200, the fourth opening 1104 of the valve body 11 is connected to the first water outlet 100, the fifth opening 1105 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, and the raw water inlet 1107 of the valve body 11 is connected to the second water outlet 200. The flat valve 10A is connected to the raw water source, so that when the flat valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10A, flows through the first communication channel 1001A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10A is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the fifth opening 1105, the second connecting channel 1002A and the fourth opening 1104 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the fourth opening 1104. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the third connecting channel 1003A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the second opening 1102, the fourth connecting channel 1004A and the third opening 1103 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the third opening 1103.

[0354] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second water outlet 200, the third opening 1103 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the first water outlet 100, the fifth opening 1105 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, and the raw water inlet 1107 of the valve body 11 is connected to the second communication opening 202 of the filter device 20. The flat valve 10A is connected to the raw water source, so that when the flat valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the flat valve 10A, flows through the first communication channel 1001A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the flat valve 10A is in the first working position, the second opening 1102 and the third opening 1103 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the flat valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the fifth opening 1105, the second connecting channel 1002A and the fourth opening 1104 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the fourth opening 1104. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the third connecting channel 1003A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the second opening 1102 and the third opening 1103 of the valve body 11 are connected through the fourth connecting channel 1004A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the third opening 1103, the fourth connecting channel 1004A and the second opening 1102 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the second opening 1102.

[0355] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the first water outlet 100, the fourth opening 1104 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the second water outlet 200, and the raw water inlet 1107 of the valve body 11 is connected to the first water outlet 100. The planar valve 10A is connected to the raw water source, so that when the planar valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the planar valve 10A, flows through the third communication channel 1003A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the planar valve 10A is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the planar valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the second opening 1102, the fourth connecting channel 1004A and the third opening 1103 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the third opening 1103. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the first connecting channel 1001A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the second connecting channel 1002A and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.Correspondingly, when the plane valve 10A is in the first working position, the third connecting channel 1003A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth connecting channel 1004A formed by the plane valve 10A is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10A is in the second working position, the first connecting channel 1001A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second connecting channel 1002A formed by the plane valve 10A is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0356] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the first water outlet 100, the third opening 1103 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, the fifth opening 1105 of the valve body 11 is connected to the second water outlet 200, and the raw water inlet 1107 of the valve body 11 is connected to the raw water inlet 1108 of the valve body 11. The planar valve 10A is connected to the raw water source, so that when the planar valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the planar valve 10A, flows through the third communication channel 1003A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the planar valve 10A is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the planar valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the third opening 1103, the fourth connecting channel 1004A and the second opening 1102 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the second opening 1102. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the first connecting channel 1001A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fourth opening 1104, the second connecting channel 1002A and the fifth opening 1105 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fifth opening 1105.Correspondingly, when the plane valve 10A is in the first working position, the third connecting channel 1003A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth connecting channel 1004A formed by the plane valve 10A is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10A is in the second working position, the first connecting channel 1001A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second connecting channel 1002A formed by the plane valve 10A is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0357] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the first water outlet 100, the third opening 1103 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the fourth opening 1104 of the valve body 11 is connected to the second water outlet 200, the fifth opening 1105 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, and the raw water inlet 1107 of the valve body 11 is connected to the first water outlet 100. The planar valve 10A is connected to the raw water source, so that when the planar valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the planar valve 10A, flows through the third communication channel 1003A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the planar valve 10A is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the clean water channel 2201 cannot flow freely through the second communication opening 202 of the filter device 20 under the control of the planar valve 10A. Therefore, the purified water produced by the first-stage filter element 22 will be further purified by the second-stage filter element 23. The purified water produced by the second-stage filter element 23 flows out from the third connecting opening 203 and flows through the third opening 1103, the fourth connecting channel 1004A and the second opening 1102 in sequence, so that the purified water produced by the second-stage filter element 23 can be provided through the first water outlet 100 connected to the second opening 1102. When the plane valve 10A is in the second working position, raw water or tap water flows into the plane valve 10A from the raw water inlet 1107 of the valve body 11 under the action of water pressure, flows to the first opening 1101 of the valve body 11 through the first connecting channel 1001A, and further flows into the raw water channel 2101 of the filter device 20 from the first connecting opening 201 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the first-level filter element 22, the purified water produced flows into the clean water channel 2201. At this time, since the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are connected through the second connecting channel 1002A, the purified water generated by the filtration of the first-level filter element 22 flows into the clean water channel 2201, flows out from the second connecting opening 202, and flows through the fifth opening 1105, the second connecting channel 1002A and the fourth opening 1104 in turn, so that the purified water generated by the first-level filter element 22 can be provided through the second water outlet 200 connected to the fourth opening 1104.Correspondingly, when the plane valve 10A is in the first working position, the third connecting channel 1003A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the fourth connecting channel 1004A formed by the plane valve 10A is respectively connected to the second opening 1102 and the third opening 1103; when the plane valve 10A is in the second working position, the first connecting channel 1001A formed by the plane valve 10A is respectively connected to the raw water inlet 1107 and the first opening 1101, and the second connecting channel 1002A formed by the plane valve 10A is respectively connected to the fourth opening 1104 and the fifth opening 1105.

[0358] Optionally, the first opening 1101 of the valve body 11 is connected to the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the third communication opening 203 of the filter device 20, the third opening 1103 of the valve body 11 is connected to the first water outlet 100, the fourth opening 1104 of the valve body 11 is connected to the second water outlet 200, the fifth opening 1105 of the valve body 11 is connected to the second communication opening 202 of the filter device 20, and the raw water inlet 1107 of the valve body 11 is connected to the first water outlet 100. The planar valve 10A is connected to the raw water source, so that when the planar valve 10A is in the first working position, raw water or tap water, under the action of water pressure, flows from the raw water inlet 1107 of the valve body 11 of the planar valve 10A, flows through the third communication channel 1003A to the first opening 1101 of the valve body 11, and then further flows from the first communication opening 201 of the filter device 20 into the raw water channel 2101 of the filter device 20. After the raw water flowing into the raw water channel 2101 is filtered by the primary filter element 22, the purified water produced flows into the clean water channel 2201. Furthermore, when the planar valve 10A is in the first working position, the fourth opening 1104 and the fifth opening 1105 of the valve body 11 are disconnected, so that the purified water in the ...

Claims

1. A tap water purifier, characterized in that: include: A filter device, wherein the filter device forms a first communication opening, a second communication opening, and a third communication opening; and A control valve, wherein the control valve includes a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first communicating opening of the filter device, the second opening of the control valve is connected to the second communicating opening of the filter device, the fourth opening of the control valve is connected to the third communicating opening of the filter device, the raw water inlet of the valve body is suitable for being connected to a raw water source, the filter device includes a housing and a primary filter element, wherein the housing forms a first accommodating cavity, wherein the primary filter element is arranged in the first accommodating cavity of the housing, and the housing and the primary filter element form a raw water channel located therebetween, the primary filter element has a clean water outlet, wherein the first communicating opening of the filter device is connected to the raw water channel, the third communicating opening is connected to the clean water outlet of the primary filter element, when the control valve is in When in a first working position, the valve core of the control valve forms a first communication channel and a second communication channel, wherein the first communication channel is respectively connected to the first opening of the valve body and the raw water inlet, and the second communication channel is respectively connected to the fourth opening and the fifth opening of the valve body, and the control valve is a plane valve, wherein the valve core further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate has a first fluid control surface, and the movable valve plate has a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both arranged in the valve cavity, wherein the second fluid control surface of the movable valve plate is arranged on the first fluid control surface of the fixed valve plate, and the movable valve plate is arranged to be able to rotate relative to the fixed valve plate, and the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel and a seventh channel, wherein the first channel, the second channel, the third channel, the fourth channel and the fifth channel are respectively arranged on the fixed valve plate and extend from the first fluid control surface of the fixed valve plate respectively; The sixth channel and the seventh channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is connected to the first opening, the second channel is connected to the second opening, the third channel is connected to the third opening, the fourth channel is connected to the fourth opening, the fifth channel is connected to the fifth opening, and the seventh channel is connected to the raw water inlet, wherein when the planar valve is in the first working position, the seventh channel of the planar valve is connected to the first channel, thereby forming the first connecting channel respectively connected to the raw water inlet and the first opening, and the sixth channel is respectively connected to the fourth channel and the fifth channel, thereby forming the second connecting channel respectively connected to the fourth opening and the fifth opening.

2. The tap water purifier according to claim 1, characterized in that: When the planar valve is in a second working position, the seventh channel of the planar valve is connected with the first channel to form a third connecting channel respectively connected with the raw water inlet and the first opening, and the sixth channel is connected with the second channel and the third channel to form a fourth connecting channel respectively connected with the second opening and the third opening.

3. The tap water purifier according to claim 2, characterized in that: The planar valve further has an eighth channel, wherein the eighth channel is arranged on the second fluid control surface of the movable valve plate of the planar valve and extends from the second fluid control surface of the movable valve plate, wherein the eighth channel is connected to the raw water inlet, wherein when the planar valve is in a third working position, the eighth channel of the planar valve is connected to the first channel, thereby forming a fifth connecting channel respectively connected to the raw water inlet and the first opening, and the sixth channel is respectively connected to the fourth channel and the fifth channel, thereby forming a sixth connecting channel respectively connected to the fourth opening and the fifth opening.

4. The tap water purifier according to claim 3, characterized in that: When the planar valve is in a fourth working position, the eighth channel of the planar valve is connected with the first channel to form a seventh connecting channel respectively connected with the raw water inlet and the first opening, and the sixth channel of the planar valve is connected with the second channel and the third channel to form an eighth connecting channel respectively connected with the second opening and the third opening.

5. The tap water purifier according to claim 4, characterized in that: The valve body of the planar valve further forms a sixth opening, and the planar valve further has a raw water supply channel, wherein the raw water supply channel is arranged on the fixed valve plate and extends from the first fluid control surface of the fixed valve plate, wherein the raw water supply channel is connected with the sixth opening, wherein when the planar valve is in a fifth working position, the seventh channel of the planar valve is connected with the raw water supply channel, thereby forming a ninth connecting channel respectively connected with the raw water inlet and the sixth opening; when the planar valve is in a sixth working position, the eighth channel of the planar valve is connected with the raw water supply channel, thereby forming a tenth connecting channel respectively connected with the raw water inlet and the sixth opening.

6. The faucet water purifier according to claim 1, characterized in that: When the planar valve is in the first working position, the second channel and the third channel are both blocked by the movable valve plate.

7. The tap water purifier according to claim 2, characterized in that: When the planar valve is in the second working position, the fourth channel and the fifth channel are both blocked by the movable valve plate.

8. The tap water purifier according to claim 3, characterized in that: When the planar valve is in the third working position, the second channel and the third channel are both blocked by the movable valve plate.

9. The tap water purifier according to claim 4, characterized in that: When the planar valve is in the fourth working position, the fourth channel and the fifth channel are both blocked by the movable valve plate.

10. The faucet water purifier according to claim 5, characterized in that: When the planar valve is in the fifth working position, the first channel, the second channel, the third channel, the fourth channel and the fifth channel of the planar valve are blocked by the movable valve plate; when the planar valve is in the sixth working position, the first channel, the second channel, the third channel, the fourth channel and the fifth channel of the planar valve are blocked by the movable valve plate.

11. The faucet water purifier according to claim 2, characterized in that: The control valve further has a sixth opening. When the control valve is in a third working position, the valve core of the control valve forms a fifth communication channel respectively connected to the raw water inlet and the sixth opening.

12. The faucet water purifier according to claim 1, characterized in that: The second channel, the fourth channel, the third channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the first channel, the second channel, the fourth channel, the third channel and the fifth channel are arranged separately on the first fluid control surface of the fixed valve plate.

13. The tap water purifier according to any one of claims 2 to 12, characterized in that: The primary filter element comprises a group of ultrafiltration membrane threads and a collecting pipe, wherein the ultrafiltration membrane threads and the collecting pipe of the primary filter element are both arranged in the first accommodating cavity, and the ultrafiltration membrane threads are arranged around the collecting pipe.

14. The tap water purifier according to claim 13, characterized in that: The first-stage filter element is an external pressure ultrafiltration filter element, wherein each ultrafiltration membrane thread of the first-stage filter element forms a membrane thread channel, and the collecting pipe has at least one water collecting hole and a collecting channel, wherein the membrane thread channel of the ultrafiltration membrane thread is connected to the clean water outlet of the first-stage filter element, and the collecting channel is arranged to be respectively connected to the water collecting hole and the second connecting opening of the filtration device.

15. The faucet water purifier according to claim 2, characterized in that: The valve body of the planar valve further forms a sixth opening, and the planar valve further has a raw water supply channel, wherein the raw water supply channel is arranged on the fixed valve plate and extends from the first fluid control surface of the fixed valve plate, and the raw water supply channel is connected with the sixth opening, wherein when the planar valve is in a third working position, the seventh channel of the planar valve is connected with the raw water supply channel, thereby forming a fifth connecting channel respectively connected with the raw water inlet and the sixth opening.

16. The tap water purifier according to claim 15, characterized in that: When the planar valve is in the first working position, the second channel, the third channel and the raw water supply channel are all blocked by the movable valve plate.

17. The tap water purifier according to claim 16, characterized in that: When the planar valve is in the second working position, the fourth channel, the fifth channel and the raw water supply channel are all blocked by the movable valve plate.

18. The tap water purifier according to claim 17, characterized in that: When the planar valve is in the third working position, the first channel, the third channel and the fifth channel are all blocked by the movable valve plate.

19. The faucet water purifier according to claim 1, characterized in that: The first channel is disposed between the third channel and the fifth channel.

20. The faucet water purifier according to claim 15, characterized in that: The first channel is disposed between the third channel and the fifth channel, and the raw water supply channel is disposed outside the first channel.

21. The faucet water purifier according to claim 1, characterized in that: The first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the first channel, the third channel, the second channel, the fourth channel and the fifth channel are arranged separately on the first fluid control surface of the fixed valve plate.

22. The tap water purifier according to claim 20, characterized in that: The first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the first channel, the third channel, the second channel, the fourth channel and the fifth channel are arranged separately on the first fluid control surface of the fixed valve plate.

23. The faucet water purifier according to claim 1, characterized in that: The fixed valve plate of the valve core of the planar valve includes a high end portion, a low end portion and a fixed portion arranged between the high end portion and the low end portion, wherein the high end portion forms the first fluid control surface of the fixed valve plate, and the low end portion is arranged in the valve cavity of the valve body.

24. The tap water purifier according to claim 20, characterized in that: The fixed valve plate of the valve core of the planar valve includes a high end portion, a low end portion and a fixed portion arranged between the high end portion and the low end portion, wherein the high end portion forms the first fluid control surface of the fixed valve plate, and the low end portion is arranged in the valve cavity of the valve body.

25. A tap water purifier, characterized in that: include: A filter device, wherein the filter device forms a first communication opening, a second communication opening, and a third communication opening; and A control valve, wherein the control valve includes a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first communicating opening of the filter device, the second opening of the control valve is connected to the second communicating opening of the filter device, the fourth opening of the control valve is connected to the third communicating opening of the filter device, the raw water inlet of the valve body is suitable for being connected to a raw water source, the filter device includes a housing and a primary filter element, wherein the housing forms a first accommodating cavity, wherein the primary filter element is arranged in the first accommodating cavity of the housing, and the housing and the primary filter element form a raw water channel located therebetween, the primary filter element has a clean water outlet, wherein the first communicating opening of the filter device is connected to the raw water channel, the third communicating opening is connected to the clean water outlet of the primary filter element, when the control valve is in a first In the working position, the valve core of the control valve forms a first communication channel and a second communication channel, wherein the first communication channel is respectively connected to the first opening of the valve body and the raw water inlet, and the second communication channel is respectively connected to the fourth opening and the fifth opening of the valve body, the control valve is a plane valve, wherein the valve core further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate has a first fluid control surface, and the movable valve plate has a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both arranged in the valve cavity, wherein the second fluid control surface of the movable valve plate is arranged on the first fluid control surface of the fixed valve plate, and the movable valve plate is arranged to be able to rotate relative to the fixed valve plate, the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and an eighth channel, wherein the first channel, the second channel, the third channel, the fourth channel and the fifth channel are respectively arranged on the fixed valve plate and extend from the first fluid control surface of the fixed valve plate respectively; The sixth channel, the seventh channel and the eighth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is connected to the first opening, the second channel is connected to the second opening, the third channel is connected to the third opening, the fourth channel is connected to the fourth opening, the fifth channel is connected to the fifth opening, and the seventh channel is connected to the raw water inlet, wherein when the planar valve is in the first working position, the seventh channel of the planar valve is connected to the first channel, thereby forming the first connecting channel respectively connected to the raw water inlet and the first opening, and the eighth channel is respectively connected to the fourth channel and the fifth channel, thereby forming the second connecting channel respectively connected to the fourth opening and the fifth opening.

26. The tap water purifier according to claim 25, characterized in that: When the planar valve is in a second working position, the seventh channel of the planar valve is connected with the first channel to form a third connecting channel respectively connected with the raw water inlet and the first opening, and the sixth channel is connected with the second channel and the third channel to form a fourth connecting channel respectively connected with the second opening and the third opening.

27. The tap water purifier according to claim 26, characterized in that: The valve body of the planar valve further forms a sixth opening, and the planar valve further has a raw water supply channel, wherein the raw water supply channel is arranged on the fixed valve plate and extends from the first fluid control surface of the fixed valve plate, and the raw water supply channel is connected with the sixth opening, wherein when the control valve is in a third working position, the seventh channel of the planar valve is connected with the raw water supply channel, thereby forming a fifth connecting channel respectively connected with the raw water inlet and the sixth opening.

28. The tap water purifier according to claim 27, characterized in that: The raw water supply channel is provided between the first channel and the fifth channel.

29. The tap water purifier according to claim 25, characterized in that: When the planar valve is in the first working position, the third passage is blocked by the movable valve plate.

30. The tap water purifier according to claim 26, characterized in that: When the planar valve is in the second working position, the fifth passage is blocked by the movable valve plate.

31. The faucet water purifier according to claim 27, characterized in that: When the planar valve is in the third working position, the fourth channel and the fifth channel are blocked by the movable valve plate.

32. The tap water purifier according to claim 25, characterized in that: The first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the seventh channel, the sixth channel and the eighth channel are arranged in this order clockwise on the second fluid control surface of the movable valve plate, and the first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged separately on the first fluid control surface of the fixed valve plate, and the seventh channel, the sixth channel and the eighth channel are arranged separately on the second fluid control surface of the movable valve plate.

33. The tap water purifier according to claim 25, characterized in that: The fixed valve plate of the valve core of the planar valve includes a high end portion, a low end portion and a fixed portion arranged between the high end portion and the low end portion, wherein the high end portion forms the first fluid control surface of the fixed valve plate, and the low end portion is arranged in the valve cavity of the valve body.

34. The tap water purifier according to claim 33, characterized in that: The lower end portion of the fixed valve plate is integrally formed and arranged on the inner wall of the valve body of the plane valve.

35. The tap water purifier according to any one of claims 25 to 34, characterized in that: The primary filter element comprises a group of ultrafiltration membrane threads and a collecting pipe, wherein the ultrafiltration membrane threads and the collecting pipe of the primary filter element are both arranged in the first accommodating cavity, and the ultrafiltration membrane threads are arranged around the collecting pipe.

36. The tap water purifier according to claim 35, characterized in that: The first-stage filter element is an external pressure ultrafiltration filter element, wherein each ultrafiltration membrane thread of the first-stage filter element forms a membrane thread channel, and the collecting pipe has at least one water collecting hole and a collecting channel, wherein the membrane thread channel of the ultrafiltration membrane thread is connected to the clean water outlet of the first-stage filter element, and the collecting channel is arranged to be respectively connected to the water collecting hole and the second connecting opening of the filtration device.

37. A tap water purifier, characterized in that: include: A filter device, wherein the filter device forms a first communication opening, a second communication opening, and a third communication opening; and A control valve, wherein the control valve comprises a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first communicating opening of the filter device, the second opening of the control valve is connected to the second communicating opening of the filter device, the fourth opening of the control valve is connected to the third communicating opening of the filter device, the raw water inlet of the valve body is suitable for being connected to a raw water source, the filter device comprises a housing and a primary filter element, wherein the housing forms a first accommodating cavity, wherein the primary filter element is arranged in the first accommodating cavity of the housing, and the housing and the primary filter element form a raw water channel located therebetween, the primary filter element has a clean water outlet, wherein the first communicating opening of the filter device is connected to the raw water channel, the third communicating opening is connected to the clean water outlet of the primary filter element, and when the control valve is in a first working position, the control valve The valve core forms a first communication channel and a second communication channel, wherein the first communication channel is respectively connected to the first opening of the valve body and the raw water inlet, and the second communication channel is respectively connected to the fourth opening and the fifth opening of the valve body. The control valve is a plane valve, wherein the valve core further includes a fixed valve plate and a movable valve plate, wherein the fixed valve plate has a first fluid control surface, and the movable valve plate has a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both arranged in the valve cavity, wherein the first fluid control surface of the movable valve plate The second fluid control surface is arranged on the first fluid control surface of the fixed valve plate, and the movable valve plate is arranged to be able to rotate relative to the fixed valve plate, and the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel, an eighth channel and a raw water inlet channel, wherein the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the raw water inlet channel are respectively arranged on the fixed valve plate and respectively extend from the first fluid control surface of the fixed valve plate; The sixth channel, the seventh channel and the eighth channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is connected to the first opening, the second channel is connected to the second opening, the third channel is connected to the third opening, the fourth channel is connected to the fourth opening, the fifth channel is connected to the fifth opening, and the raw water inlet channel is respectively connected to the seventh channel and the raw water inlet, wherein when the planar valve is in the first working position, the seventh channel of the planar valve is respectively connected to the first channel and the raw water inlet channel, thereby forming the first connecting channel respectively connected to the raw water inlet and the first opening, and the eighth channel is respectively connected to the fourth channel and the fifth channel, thereby forming the second connecting channel respectively connected to the fourth opening and the fifth opening.

38. The tap water purifier according to claim 37, characterized in that: When the planar valve is in a second working position, the seventh channel of the planar valve is connected with the first channel and the raw water inlet channel respectively, thereby forming a third connecting channel connected with the raw water inlet and the first opening respectively, and the sixth channel is connected with the second channel and the third channel respectively, thereby forming a fourth connecting channel connected with the second opening and the third opening respectively.

39. The tap water purifier according to claim 38, characterized in that: The valve body of the planar valve further forms a sixth opening, and the planar valve further has a raw water supply channel, wherein the raw water supply channel is arranged on the fixed valve plate and extends from the first fluid control surface of the fixed valve plate, and the raw water supply channel is connected with the sixth opening, wherein when the control valve is in a third working position, the seventh channel of the planar valve is respectively connected with the raw water supply channel and the raw water inlet channel, thereby forming a fifth connecting channel respectively connected with the raw water inlet and the sixth opening.

40. The tap water purifier according to claim 39, characterized in that: The raw water supply channel is arranged between the first channel and the fifth channel, and the raw water inlet channel is arranged at the central part of the first fluid control surface of the fixed valve plate.

41. The tap water purifier according to claim 37, characterized in that: When the planar valve is in the first working position, the third passage is blocked by the movable valve plate.

42. The tap water purifier according to claim 38, characterized in that: When the planar valve is in the second working position, the fifth passage is blocked by the movable valve plate.

43. The tap water purifier according to claim 39, characterized in that: When the planar valve is in the third working position, the fourth channel and the fifth channel are blocked by the movable valve plate.

44. The tap water purifier according to claim 37, characterized in that: The first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the seventh channel, the sixth channel and the eighth channel are arranged in this order clockwise on the second fluid control surface of the movable valve plate, and the first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged separately on the first fluid control surface of the fixed valve plate, and the seventh channel, the sixth channel and the eighth channel are arranged separately on the second fluid control surface of the movable valve plate.

45. The tap water purifier according to claim 37, characterized in that: The fixed valve plate of the valve core of the planar valve includes a high end portion, a low end portion and a fixed portion arranged between the high end portion and the low end portion, wherein the high end portion forms the first fluid control surface of the fixed valve plate, and the low end portion is arranged in the valve cavity of the valve body.

46. ​​The tap water purifier according to claim 45, characterized in that: The lower end portion of the fixed valve plate is integrally formed and arranged on the inner wall of the valve body of the plane valve.

47. The tap water purifier according to any one of claims 37 to 46, characterized in that: The primary filter element comprises a group of ultrafiltration membrane threads and a collecting pipe, wherein the ultrafiltration membrane threads and the collecting pipe of the primary filter element are both arranged in the first accommodating cavity, and the ultrafiltration membrane threads are arranged around the collecting pipe.

48. The tap water purifier according to claim 47, characterized in that: The first-stage filter element is an external pressure ultrafiltration filter element, wherein each ultrafiltration membrane thread of the first-stage filter element forms a membrane thread channel, and the collecting pipe has at least one water collecting hole and a collecting channel, wherein the membrane thread channel of the ultrafiltration membrane thread is connected to the clean water outlet of the first-stage filter element, and the collecting channel is arranged to be respectively connected to the water collecting hole and the second connecting opening of the filtration device.

49. A tap water purifier, characterized in that: include: A filter device, wherein the filter device forms a first communication opening, a second communication opening, and a third communication opening; and A control valve, wherein the control valve comprises a valve body and a valve core, wherein the valve body forms a valve cavity, a first opening, a second opening, a third opening, a fourth opening, a fifth opening and a raw water inlet, wherein the valve core is arranged in the valve cavity, wherein the first opening of the control valve is connected to the first communicating opening of the filter device, the second opening of the control valve is connected to the second communicating opening of the filter device, the fourth opening of the control valve is connected to the third communicating opening of the filter device, the raw water inlet of the valve body is suitable for being connected to a raw water source, the filter device comprises a housing and a primary filter element, wherein the housing forms a first accommodating cavity, wherein the primary filter element is arranged in the first accommodating cavity of the housing, and the housing and the primary filter element form a raw water channel located therebetween, the primary filter element has a clean water outlet, wherein the first communicating opening of the filter device is connected to the raw water channel, and the third communicating opening is connected to the clean water outlet of the primary filter element, when the control valve is in a first working position, The valve core of the control valve forms a first communication channel and a second communication channel, wherein the first communication channel is respectively connected to the first opening of the valve body and the raw water inlet, and the second communication channel is respectively connected to the fourth opening and the fifth opening of the valve body. The control valve is a plane valve, wherein the valve core further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate has a first fluid control surface, and the movable valve plate has a second fluid control surface, wherein the movable valve plate and the fixed valve plate are both arranged in the valve cavity, wherein the second fluid control surface of the movable valve plate is arranged on the first fluid control surface of the fixed valve plate, and the movable valve plate is arranged to be able to rotate relative to the fixed valve plate, and the plane valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel, a sixth channel, a seventh channel and a raw water inlet channel, wherein the first channel, the second channel, the third channel, the fourth channel, the fifth channel and the raw water inlet channel are respectively arranged on the fixed valve plate and extend from the first fluid control surface of the fixed valve plate respectively; The sixth channel and the seventh channel are respectively arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is connected to the first opening, the second channel is connected to the second opening, the third channel is connected to the third opening, the fourth channel is connected to the fourth opening, the fifth channel is connected to the fifth opening, and the raw water inlet channel is respectively connected to the seventh channel and the raw water inlet, wherein when the planar valve is in the first working position, the seventh channel of the planar valve is respectively connected to the first channel and the raw water inlet channel, thereby forming the first connecting channel respectively connected to the raw water inlet and the first opening, and the sixth channel is respectively connected to the fourth channel and the fifth channel, thereby forming the second connecting channel respectively connected to the fourth opening and the fifth opening.

50. The tap water purifier according to claim 49, characterized in that: When the planar valve is in a second working position, the seventh channel of the planar valve is connected with the first channel and the raw water inlet channel respectively, thereby forming a third connecting channel connected with the raw water inlet and the first opening respectively, and the sixth channel is connected with the second channel and the third channel respectively, thereby forming a fourth connecting channel connected with the second opening and the third opening respectively.

51. The tap water purifier according to claim 50, characterized in that: The valve body of the planar valve further forms a sixth opening, and the planar valve further has a raw water supply channel, wherein the raw water supply channel is arranged on the fixed valve plate and extends from the first fluid control surface of the fixed valve plate, and the raw water supply channel is connected with the sixth opening, wherein when the planar valve is in a third working position, the seventh channel of the planar valve is respectively connected with the raw water supply channel and the raw water inlet channel, thereby forming a fifth connecting channel respectively connected with the raw water inlet and the sixth opening.

52. The tap water purifier according to claim 49, characterized in that: When the planar valve is in the first working position, the second channel and the third channel are both blocked by the movable valve plate.

53. The tap water purifier according to claim 50, characterized in that: When the planar valve is in the second working position, the fourth channel and the fifth channel are both blocked by the movable valve plate.

54. The tap water purifier according to claim 51, characterized in that: When the planar valve is in the third working position, the first channel, the third channel and the fifth channel are all blocked by the movable valve plate.

55. The tap water purifier according to claim 49, characterized in that: The first channel is disposed between the third channel and the fifth channel.

56. The tap water purifier according to claim 51, characterized in that: The first channel is disposed between the third channel and the fifth channel, and the raw water supply channel is disposed inside the first channel.

57. The tap water purifier according to claim 49, characterized in that: The first channel, the third channel, the second channel, the fourth channel and the fifth channel of the planar valve are arranged in this order clockwise on the first fluid control surface of the fixed valve plate, and the first channel, the third channel, the second channel, the fourth channel and the fifth channel are arranged separately on the first fluid control surface of the fixed valve plate.

58. The tap water purifier according to claim 49, characterized in that: The fixed valve plate of the valve core of the planar valve includes a high end portion, a low end portion and a fixed portion arranged between the high end portion and the low end portion, wherein the high end portion forms the first fluid control surface of the fixed valve plate, and the low end portion is arranged in the valve cavity of the valve body.

59. The tap water purifier according to any one of claims 49 to 58, characterized in that: The primary filter element comprises a group of ultrafiltration membrane threads and a collecting pipe, wherein the ultrafiltration membrane threads and the collecting pipe of the primary filter element are both arranged in the first accommodating cavity, and the ultrafiltration membrane threads are arranged around the collecting pipe.

60. The tap water purifier according to claim 59, characterized in that: The first-stage filter element is an external pressure ultrafiltration filter element, wherein each ultrafiltration membrane thread of the first-stage filter element forms a membrane thread channel, and the collecting pipe has at least one water collecting hole and a collecting channel, wherein the membrane thread channel of the ultrafiltration membrane thread is connected to the clean water outlet of the first-stage filter element, and the collecting channel is arranged to be respectively connected to the water collecting hole and the second connecting opening of the filtration device.

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