Water purifier and control valve for water purifier

Abstract

A water purifier, comprising a control valve (10) and a filter device (20), wherein the control valve (10) comprises a valve body (11) and a valve core (12), with a valve cavity (110), a first opening (1101), a second opening (1102), a third opening (1103), a drain opening (1104) and a water inlet (1105) being formed in the valve body (11); the valve core (12) is arranged in the valve cavity (110); and the filter device (20) is provided with a first communication opening (201) and a second communication opening (202), with the first opening (1101) of the valve body (11) being in communication with the first communication opening (201) of the filter device (20), the second opening (1102) of the valve body (11) being in communication with the second communication opening (202) of the filter device (20), and the water inlet (1105) of the valve body (11) being adapted to be in communication with a raw-water source.

Description

Water purifier and control valve for water purifier Technical Field

[0001] The utility model relates to a water purifier, in particular to a water purifier capable of purifying raw water (or tap water) to obtain purified water. The utility model further relates to a control valve for the water purifier. Background Art

[0002] With the continuous improvement of people's living standards and the increasing emphasis on health, people's requirements for the quality of domestic water are also becoming higher and higher. However, in many countries, especially in developing countries, much tap water comes from surface water, which is provided to users after being purified and disinfected by water plants. The water treatment of water plants is relatively extensive and is not sufficient to remove all impurities, such as particulate pollutants (flocculent gels, silt, and even bacteria). In addition, the aging of tap water supply pipes can also introduce new contamination to tap water. To further purify tap water and improve its cleanliness, people use a variety of water purification equipment to treat tap water. For example, tap water is filtered or ultrafiltered using a water purifier (using filter materials such as activated carbon, PP cotton, or ultrafiltration filter materials), and extremely pure purified water is obtained using an RO membrane water purifier.

[0003] Generally, the filter cartridge of a water purifier has a limited lifespan and should be replaced promptly after a period of use. Therefore, most existing water purifier filter cartridges are designed to be removable to facilitate replacement. However, due to the water pressure within the filter cartridge, the user requires considerable force to remove the filter cartridge (or filter cartridge housing). Furthermore, when replacing the filter cartridge, the water pressure within the filter cartridge can easily cause the water inside the filter cartridge to flow out and spray onto the ground.

[0004] Utility Model Content

[0005] The main advantage of the present invention is to provide a water purifier, wherein the control valve of the water purifier of the present invention can control the water purifier of the present invention to achieve multiple functions such as water filtration and backwashing.

[0006] Another advantage of the present invention is that it provides a water purifier, wherein the control valve of the water purifier of the present invention is designed to control the water pressure discharged from the filter element of the water purifier of the present invention when it is switched to the bypass working position, thereby facilitating the user to replace the filter element and preventing the water in the filter element from flowing to the ground when replacing the filter element.

[0007] Other purposes and features of the present invention are fully reflected in the following detailed description.

[0008] According to one aspect of the present invention, a water purifier of the present invention that can achieve the aforementioned objects and other objects and advantages includes:

[0009] A control valve comprising 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 sewage discharge opening and a water inlet, wherein the valve core is disposed in the valve cavity; and

[0010] A filter device, wherein the filter device has a first connecting opening and a second connecting opening, wherein the first opening of the valve body is connected to the first connecting opening of the filter device, the second opening of the valve body is connected to the second connecting opening of the filter device, and the water inlet of the valve body is suitable for connecting to a raw water source.

[0011] Further objectives and advantages of the present invention will be fully reflected through understanding of the following description and drawings.

[0012] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a front view of a water purifier according to the embodiment of the present invention.

[0014] FIG2 is an assembly diagram of the water purifier according to the embodiment of the present invention.

[0015] FIG3A is a cross-sectional view of a water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a water treatment working state, and the dotted arrow in the figure indicates the direction of water flow in the working state.

[0016] FIG3B is another cross-sectional view of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a water treatment working state, and the dotted arrow in the figure indicates the direction of water flow in the working state.

[0017] Figure 4 is another cross-sectional view of the water purifier according to the above embodiment of the present invention, wherein the water purifier shown in the figure is in the bypass working state, and the dotted arrows in the figure indicate the water flow direction of the raw water supply flow channel and the pressure relief flow channel in this working state.

[0018] FIG5A is another cross-sectional view of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a backwashing working state, and the dotted arrow in the figure indicates the direction of water flow in the working state.

[0019] FIG5B is another cross-sectional view of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a backwashing working state, and the dotted arrow in the figure indicates the direction of water flow in the working state.

[0020] FIG6 is another cross-sectional view of the water purifier according to the embodiment of the present invention, wherein the water purifier shown in the figure is in a standby working state.

[0021] FIG7A is a perspective view of the valve body of the control valve of the water purifier according to the embodiment of the present invention, wherein the control valve is a planar valve.

[0022] FIG7B is a bottom cross-sectional view of the water purifier according to the embodiment of the present invention.

[0023] FIG7C is a three-dimensional view of the valve body and the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the fixed valve plate is disposed in the valve cavity of the planar valve.

[0024] 7D is a three-dimensional view of the valve body, the fixed valve plate and the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the movable valve plate is disposed in the valve cavity of the planar valve.

[0025] FIG7E is a cross-sectional view of the valve body of the planar valve of the water purifier according to the embodiment of the present invention.

[0026] FIG7F is another cross-sectional view of the valve body of the planar valve of the water purifier according to the embodiment of the present invention.

[0027] FIG7G is another cross-sectional view of the valve body of the planar valve of the water purifier according to the embodiment of the present invention.

[0028] FIG8A is a three-dimensional view of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0029] FIG8B is a bottom view of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0030] FIG8C is a top view of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0031] FIG8D is a top view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0032] FIG8E is a three-dimensional view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0033] FIG8F is another three-dimensional view of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0034] FIG9A is a schematic structural diagram of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention.

[0035] FIG9B is a schematic structural diagram of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the dotted line in the figure indicates the conducting blind hole of the movable valve plate.

[0036] FIG10A is a schematic diagram of the fixed valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the figure shows the specific equally divided positions of each channel arranged on the fixed valve plate.

[0037] FIG10B is a schematic diagram of equally divided portions of the movable valve plate of the planar valve of the water purifier according to the embodiment of the present invention, wherein the diagram shows the specific equally divided positions of the various channels arranged on the movable valve plate.

[0038] Figure 11A is a schematic diagram of the connection between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve of the water purifier according to the above-mentioned embodiment of the present invention when the planar valve is in its water treatment working position, wherein the shaded part in the figure shows the channels between the movable valve plate and the fixed valve plate of the planar valve that are connected to each other.

[0039] Figure 11B is a schematic diagram of the connection between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve of the water purifier according to the above-mentioned embodiment of the present invention when the planar valve is in its bypass working position, wherein the shaded part in the figure shows the channels between the movable valve plate and the fixed valve plate of the planar valve that are connected to each other.

[0040] Figure 11C is a schematic diagram of the connection between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve of the water purifier according to the above-mentioned embodiment of the present invention when the planar valve is in its backwash working position, wherein the shaded part in the figure shows the channels between the movable valve plate and the fixed valve plate of the planar valve that are connected to each other.

[0041] Figure 11D is a schematic diagram of the connection between the channel of the movable valve plate and the channel of the fixed valve plate of the planar valve of the water purifier according to the above-mentioned embodiment of the present invention when the planar valve is in its standby working position, wherein the shaded part in the figure shows the channels between the movable valve plate and the fixed valve plate of the planar valve that are connected to each other. DETAILED DESCRIPTION

[0042] The following description is intended to disclose the present invention and enable those skilled in the art to implement the present invention. The preferred embodiments described below are provided for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as 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.

[0043] 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 indicating the orientation or position relationship are based on the orientation or position relationship 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 operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0044] It is to be 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.

[0045] With reference to Figures 1 to 6 of the accompanying drawings, a water purifier according to an embodiment of the present invention is illustrated, wherein the water purifier of the present invention includes a control valve 10 and a filter device 20, wherein the filter device 20 has a first communication opening 201 and a second communication opening 202, so that raw water can flow in through the first communication opening 201 and purified water can flow out through the second communication opening 202. The control valve 10 is configured to control the flow of water, such as controlling the raw water (or tap water) to be provided to the filter device 20, and controlling the filter device 20 to process (filter) the raw water, generate, or produce the purified water. It can be understood that the control valve 10 of the water purifier of the present invention is connected to a tap water source, such as a tap water pipe. In other words, the control valve 10 controls the raw water (or tap water) and provides it to the filter device 20.

[0046] As shown in Figures 1 to 6 of the accompanying drawings, the filter device 20 of the water purifier according to an embodiment of the present utility model includes a shell 21 and a filter element 22, wherein the shell 21 forms a first accommodating cavity 210, wherein the filter element 22 is arranged in the first accommodating cavity 210 of the shell 21, wherein the shell 21 and the filter element 22 form a raw water channel 2101 located therebetween, and the filter element 22 forms a clean water channel 2201, wherein the first connecting opening 201 of the filter device 20 is connected to the raw water channel 2101, and the second connecting opening 202 is connected to the clean water channel 2201. Accordingly, when raw water flows into the raw water channel 2101 from the first connecting opening 201 under the action of water pressure, and is processed by the filter element 22 under the action of water pressure, and the resulting purified water flows out of the clean water channel 2201 of the filter element 22, the water purifier of the present invention is in a filtering (purification or water treatment) state; when raw water flows into the clean water channel 2201 from the second connecting opening 202 under the action of water pressure, and flows toward the raw water channel 2101 under the action of water pressure and is discharged, the water purifier of the present invention is in a backwashing state. It can be understood that backwashing in this article refers to the flow direction of raw water through the filter element 22 when flushing the filter element 22, which is opposite to the flow direction of raw water through the filter element 22 when the filter element 22 purifies (filters or treats) the raw water. Therefore, preferably, the raw water channel 2101 is located on one side (or outside) of the filter element 22, and the clean water channel 2201 is formed on an opposite side (or inside) of the filter element 22. Preferably, the filter element 22 is a PP cotton filter element, a carbon particle filter element, a ceramic filter element, a carbon rod filter element, a carbon fiber filter element, a stainless steel mesh filter element, an ultrafiltration filter element, or other similar filter element. It is understood that the filter element 22 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, activated carbon particles, and resin.

[0047] As shown in Figures 1 to 7G of the accompanying drawings, the control valve 10 of the 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 sewage opening 1104 and a water inlet 1105, wherein the valve core 12 is arranged in the valve cavity 110, wherein the first opening 1101 of the valve body 11 is connected to the first connecting opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is connected to the second connecting opening 202 of the filter device 20, and the water inlet 1105 of the valve body 11 is suitable for being connected to a raw water source (for example, a tap water pipe).

[0048] As shown in Figures 3A, 3B and 7A to 7G of the accompanying drawings, the control valve 10 of the water purifier according to an embodiment of the present invention has a water treatment working position, wherein when the control valve 10 is in the water treatment working position, the valve core 12 of the control valve 10 forms a first water treatment flow channel 10011 and a second water treatment flow channel 10012, wherein the first water treatment flow channel 10011 is respectively connected to the water inlet 1105 and the first opening 1101 of the valve body 11, and the second water treatment flow channel 10012 is respectively connected to the second opening 1102 and the third opening 1103. Accordingly, when the control valve 10 is in the water treatment working position, raw water flows into the control valve 10 from the water inlet 1105 of the valve body 11 under the action of water pressure, flows through the first water treatment flow channel 10011 to the first opening 1101 of the valve body 11, and further flows into the filter device 20 from the first communication opening 201 under the action of water pressure. Purified water treated by the filter device 20 then flows out from the second communication opening 202 under the action of water pressure and further flows from the second opening 1102 and the second water treatment flow channel 10012 to the third opening 1103 and is provided. Therefore, the third opening 1103 of the control valve 10 of the water purifier according to this embodiment of the present invention serves as a water outlet. It can be understood that when the control valve 10 of the water purifier according to this embodiment of the present invention is controlled to be in the water treatment working position, the water purifier is controlled to be in its water treatment working state.

[0049] As shown in Figures 4 and 7A to 7G of the accompanying drawings, the control valve 10 of the water purifier according to an embodiment of the present invention has a bypass working position, wherein when the control valve 10 is in the bypass working position, the valve core 12 of the control valve 10 forms a raw water supply channel 10021 and a pressure relief channel 10022, wherein the raw water supply channel 10021 is respectively connected to the water inlet 1105 and the third opening 1103 of the valve body 11, and the pressure relief channel 10022 is respectively connected to the second opening 1102 and the sewage opening 1104 of the valve body 11. Accordingly, when the control valve 10 is in the bypass operating position, raw water, under the action of water pressure, flows from the water inlet 1105 of the valve body 11 of the control valve 10, flows through the raw water supply channel 10021 to the third opening 1103 of the valve body 11, and supplies raw water. The water pressure in the filter device 20 is released through the second opening 1102, the pressure relief channel 10022, and the sewage discharge opening 1104. It can be understood that when the control valve 10 of the water purifier according to the embodiment of the present invention is controlled to be in the bypass operating position, the water purifier of the present invention is controlled to be in its bypass operating state. It can be understood that when the water pressure in the filter device 20 of the water purifier of the embodiment of the present invention is released through the second connecting opening 202, the second opening 1102, the pressure relief channel 10022 and the sewage opening 1104, the user can easily remove the filter device 20 (or its housing 21) and replace the filter element 22, and when the filter device 20 is removed, it will not affect the raw water being provided through the third opening 1103 of the control valve 10.

[0050] As shown in Figures 5A, 5B and 7A to 7G of the accompanying drawings, the control valve 10 of the water purifier according to an embodiment of the present invention further has a backwash working position, wherein when the control valve 10 is in the backwash working position, the valve core 12 of the control valve 10 forms a first backwash flow channel 10031 and a second backwash flow channel 10032, wherein the first backwash flow channel 10031 is respectively connected to the water inlet 1105 and the second opening 1102 of the valve body 11, and the second backwash flow channel 10032 is respectively connected to the first opening 1101 and the sewage opening 1104 of the valve body 11. Accordingly, when the control valve 10 is in the backwash working position, raw water flows in from the water inlet 1105 of the valve body 11 of the control valve 10 under the action of water pressure, flows through the first backwash flow channel 10031 to the second opening 1102 of the valve body 11, and further flows into the filter device 20 through the second communication opening 202 of the filter device 20. Under the action of water pressure, the filter element 22 of the filter device 20 is backwashed, and the resulting sewage flows out from the first communication opening 201 of the filter device 20. Then, under the action of water pressure, it is discharged through the first opening 1101 of the valve body 11 of the control valve 10, the second backwash flow channel 10032, and the sewage discharge opening 1104. When the control valve 10 of the water purifier according to the embodiment of the present invention is controlled to be in the backwash working position, the water purifier of the present invention is controlled to be in its backwash working state.

[0051] As shown in Figures 6 to 7G of the accompanying drawings, the control valve 10 of the water purifier according to an embodiment of the present invention further has a standby working position, wherein when the control valve 10 is in the standby working position, the valve core 12 of the control valve 10 can prevent raw water from flowing to the first opening 1101, the second opening 1102, the third opening 1103 and the sewage opening 1104 of the valve body 11.

[0052] As shown in Figures 7A to 10B of the accompanying drawings, the control valve 10 of the 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 water inlet 1105 is connected to the valve cavity 110 of the valve body 11.

[0053] As shown in FIG. 7A to FIG. 10B of the accompanying drawings, the plane valve 10 of the water purifier according to the 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 and a sixth channel 106, wherein the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are respectively provided on the fixed valve plate 121 and are respectively from the first fluid control surface 121 of the fixed valve plate 121. 0; the fifth channel 105 and the sixth channel 106 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 sewage opening 1104, and the fifth channel 105 is connected to the water inlet 1105. Preferably, the sixth channel 106 is a conducting blind hole. Preferably, the fifth channel 105 is connected to the water inlet 1105 through the valve cavity 110.

[0054] As shown in Figures 7A to 10B of the accompanying drawings, the first fluid control surface 1210 of the fixed valve plate 121 of the planar valve 10 of the water purifier according to an embodiment of the present invention forms a central portion 12101 and an edge portion 12102 extending outward from the central portion 12101, and the first channel 101, the fourth channel 104, the second channel 102 and the third channel 103 of the planar valve 10 are arranged clockwise in this order on the edge portion 12102 of the first fluid control surface 1210 of the fixed valve plate 121, and the fifth channel 105 and the sixth channel 106 of the planar valve 10 are arranged on the second fluid control surface 1220 of the movable valve plate 122. Optionally, the first channel 101, the fourth channel 104, the second channel 102, and the third channel 103 of the planar valve 10 are arranged counterclockwise in this order on the edge portion 12102 of the first fluid control surface 1210 of the fixed valve disc 121. Preferably, the first channel 101, the fourth channel 104, the second channel 102, and the third channel 103 of the planar valve 10 are separately arranged on the first fluid control surface 1210 of the fixed valve disc 121; and the fifth channel 105 and the sixth channel 106 of the planar valve 10 are separately arranged on the second fluid control surface 1220 of the movable valve disc 122.

[0055] As shown in Figures 3A, 3B and 11A of the accompanying drawings, the movable valve plate 122 of the planar valve 10 of the water purifier according to an embodiment of the present invention can rotate relative to the fixed valve plate 121 so that the planar valve 10 has a water treatment working position. When the planar valve 10 is in the water treatment working position, the fifth channel 105 of the planar valve 10 is connected to the first channel 101, thereby forming the first water treatment flow channel 10011 respectively connected to the water inlet 1105 and the first opening 1101, and the sixth channel 106 is respectively connected to the second channel 102 and the third channel 103, thereby forming the second water treatment flow channel 10012 respectively connected to the second opening 1102 and the third opening 1103. As shown in Figures 3A, 3B, and 11A of the accompanying drawings, when the planar valve 10 is in the water treatment working position, the fourth channel 104 is blocked by the second fluid control surface 1220 of the movable valve plate 122. Accordingly, when the planar valve 10 is in the water treatment working position, raw water, under the action of water pressure, flows from the water inlet 1105 of the valve body 11 of the planar valve 10, flows through the fifth channel 105 into the first channel 101, and flows to the first opening 1101 of the valve body 11, and further flows into the filter device 20 through the first communication opening 201. Purified water treated by the filter device 20, under the action of water pressure, flows out from the second communication opening 202 and further into the second opening 1102, then flows through the second channel 102, the sixth channel 106, and the third channel 103 to the third opening 1103 and is provided.

[0056] As shown in Figures 4 and 11B of the accompanying drawings, the movable valve disc 122 of the planar valve 10 of the water purifier according to an embodiment of the present invention can rotate relative to the fixed valve disc 121, thereby enabling the planar valve 10 to further have a bypass working position. When the planar valve 10 is in the bypass working position, the fifth channel 105 of the planar valve 10 is connected to the third channel 103, thereby forming the raw water supply channel 10021 respectively connected to the water inlet 1105 and the third opening 1103. Furthermore, when the planar valve 10 is in the bypass working position, the sixth channel 106 of the planar valve 10 is connected to the second channel 102 and the fourth channel 104, thereby forming the pressure relief channel 10022 respectively connected to the second opening 1102 and the sewage opening 1104. As shown in Figures 4 and 11B of the accompanying drawings, when the planar valve 10 is in the bypass position, the first channel 101 is blocked by the second fluid control surface 1220 of the movable valve disc 122. Accordingly, when the planar valve 10 is in the bypass position, raw water, under the action of water pressure, flows from the water inlet 1105 of the valve body 11 of the planar valve 10, passes through the fifth channel 105 and the third channel 103, and is supplied to the third opening 1103. Furthermore, when the planar valve 10 is in the bypass position, the water pressure within the filter device 20 is released through the second communication opening 202, the second opening 1102, the second channel 102, the sixth channel 106, the fourth channel 104, and the drain opening 1104. It is understood that when the flat valve 10 of the water purifier according to the embodiment of the present invention is controlled to be in the bypass working position, the water purifier of the present invention is controlled to be in its bypass working state. It is understood that when the water pressure in the filter device 20 of the water purifier of the embodiment of the present invention is released through the pressure relief channel 10022, the user can easily remove the filter device 20 (or its housing 21) and replace the filter element 22, and when the filter device 20 is removed, it will not affect the supply of raw water through the third opening 1103 of the flat valve 10.

[0057] As shown in Figures 5A, 5B and 11C of the accompanying drawings, the movable valve plate 122 of the planar valve 10 of the water purifier according to an embodiment of the present invention can rotate relative to the fixed valve plate 121 so that the planar valve 10 further has a backwash working position. When the planar valve 10 is in the backwash working position, the fifth channel 105 of the planar valve 10 is connected to the second channel 102, thereby forming the first backwash flow channel 10031 respectively connected to the water inlet 1105 and the second opening 1102, and the sixth channel 106 is respectively connected to the first channel 101 and the fourth channel 104, thereby forming the second backwash flow channel 10032 respectively connected to the first opening 1101 and the sewage opening 1104. As shown in Figures 5A, 5B, and 11C of the accompanying drawings, when the planar valve 10 is in the backwash operating position, the third channel 103 is blocked by the second fluid control surface 1220 of the movable valve disc 122. Accordingly, when the planar valve 10 is in the backwash operating position, raw water, under the action of water pressure, flows from the water inlet 1105 of the valve body 11 of the planar valve 10, flows through the fifth channel 105 into the second channel 102, and flows to the second opening 1102 of the valve body 11. It further flows into the filter device 20 through the second communication opening 202. After backwashing the filter element 22 of the filter device 20, the sewage flows out from the first communication opening 201 and is discharged through the first opening 1101, the first channel 101, the sixth channel 106, the fourth channel 104, and the sewage discharge opening 1104.

[0058] As shown in Figures 4 and 11D of the accompanying drawings, the movable valve disc 122 of the planar valve 10 of the water purifier according to an embodiment of the present invention can rotate relative to the fixed valve disc 121, thereby allowing the planar valve 10 to further have a standby working position. When the planar valve 10 is in the standby working position, the second channel 102 and the fourth channel 104 of the planar valve 10 are respectively blocked by the second fluid control surface 1220 of the movable valve disc 122, and the fifth channel 105 is blocked by the first fluid control surface 1210 of the fixed valve disc 121. Although the sixth channel 106 is connected to the first channel 101 and the third channel 103 respectively, the channel formed by the sixth channel 106, the first channel 101, and the third channel 103 is not connected to the water source, and no water flows through it. Correspondingly, when the planar valve 10 is in the standby position, no water flows through the first opening 1101 , the second opening 1102 , the third opening 1103 and the sewage discharge opening 1104 .

[0059] As shown in Figures 8A to 11D of the accompanying drawings, the first fluid control surface 1210 of the fixed valve disc 121 of the plane valve 10 of the water purifier according to the embodiment of the present invention has the center portion 12101 and the edge portion 12102 shown by the dotted line in the figure, wherein the center portion 12101 and the edge portion 12102 are provided at the top portion 1214 of the fixed valve disc 121, and the edge portion 12102 of the first fluid control surface 1210 (or the portion outside the center portion 12101) is equally divided into a dotted line shown in FIG. The first part 1201, a second part 1202, a third part 1203 and a fourth part 1204; the second fluid control surface 1220 of the movable valve plate 122 of the plane valve 10 has a central area 12201 shown by a dotted line in the figure and an edge area 12202 extending outward from the central area 12201, wherein the central area 12201 and the edge area 12202 are provided at the bottom end 1221 of the movable valve plate 122, and the edge area of ​​the second fluid control surface 1220 12202 (the portion outside the central area 12201) is equally divided into a first area 2001, a second area 2002, a third area 2003 and a fourth area 2004 as shown by dotted lines; wherein the first channel 101 extends downward from the first portion 1201 of the first fluid control surface 1210 of the fixed valve disc 121, the fourth channel 104 extends downward and outward from the second portion 1202 of the first fluid control surface 1210 of the fixed valve disc 121, and the second channel 102 extends downward and outward from the second portion 1202 of the first fluid control surface 1210 of the fixed valve disc 121. The third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121 extends downward, the third channel 103 extends downward and outward from the fourth portion 1204 of the first fluid control surface 1210 of the fixed valve plate 121, the fifth channel 105 extends upward from the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122, and the sixth channel 106 extends upward from the third area 2003 and the fourth area 2004 of the second fluid control surface 1220 of the movable valve plate 122.Therefore, according to the above-mentioned arrangement of the first channel 101, the fourth channel 104, the second channel 102 and the third channel 103 of the plane valve 10 of the water purifier on the first fluid control surface 1210 and the above-mentioned arrangement of the fifth channel 105 and the sixth channel 106 of the plane valve 10 on the second fluid control surface 1220 of the movable valve plate 122, when according to the embodiment of the present invention, the first channel 101 of the plane valve 10 of the water purifier is distributed at one equally divided position of the first fluid control surface 1210, the second channel 102 of the plane valve 10 is distributed at one equally divided position of the first fluid control surface 1210, the third channel 103 of the plane valve 10 is respectively distributed at one equally divided position of the first fluid control surface 1210, and the fourth channel 104 of the plane valve 10 is distributed at one equally divided position of the second fluid control surface 1220. Accordingly, according to the embodiment of the present invention, the arrangement of the first channel 101, the fourth channel 104, the second channel 102, the third channel 103, the fifth channel 105, and the sixth channel 106 of the plane valve 10 of the water purifier has four different working positions, and each time the user drives the movable valve disc 122 of the plane valve 10 to rotate 90 degrees relative to the fixed valve disc 121, it is possible to switch between two adjacent working positions. In other words, each time the movable valve disc 122 of the plane valve 10 of the water purifier of the present invention rotates 90 degrees relative to the fixed valve disc 121, it is possible to switch between two adjacent working positions. More specifically, the first channel 101 has a first conducting opening 1011 formed on the first fluid control surface 1210 of the fixed valve disc 121, the second channel 102 has a second conducting opening 1021 formed on the first fluid control surface 1210 of the fixed valve disc 121, the third channel 103 has a third conducting opening 1031 formed on the first fluid control surface 1210 of the fixed valve disc 121, and the fourth channel 104 has a The fourth conductive opening 1041 of the first fluid control surface 1210, and the first conductive opening 1011, the fourth conductive opening 1041, the second conductive opening 1021 and the third conductive opening 1031 are respectively formed in the first part 1201 (or the first equal part), the second part 1202 (or the second equal part), the third part 1203 (or the third equal part) and the fourth part 1204 (or the fourth equal part) of the first fluid control surface 1210 of the fixed valve plate 121.

[0060] As shown in Figures 8A to 11D of the accompanying drawings, the second fluid control surface 1220 of the movable valve plate 122 of the planar valve 10 of the water purifier according to an embodiment of the present invention further forms a lateral protrusion 122011, and the fourth conductive opening 1041 of the fourth channel 104 is arranged adjacent to the third part 1203 of the first fluid control surface 1210 of the fixed valve plate 121 (or away from the first part 1201 of the first fluid control surface 1210 of the fixed valve plate 121), wherein the lateral protrusion 122011 of the second fluid control surface 1220 of the movable valve plate 122 extends from the second area 2002 of the second fluid control surface 1220 of the movable valve plate 122 to the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122, thereby making the fifth conductive opening 1051 of the fifth channel 105 of the planar valve 10 have a knife handle-shaped structure. Optionally, the fourth conducting opening 1041 of the fourth channel 104 can also be arranged adjacent to the first part 1201 of the first fluid control surface 1210 of the fixed valve plate 121 (or away from the third part 1203 of the first fluid control surface 1210 of the fixed valve plate 121), wherein the lateral protrusion 122011 of the second fluid control surface 1220 of the movable valve plate 122 extends from the fourth area 2004 of the second fluid control surface 1220 of the movable valve plate 122 to the first area 2001 of the second fluid control surface 1220 of the movable valve plate 122, so that the fifth conducting opening 1051 of the fifth channel 105 of the planar valve 10 has a knife handle-shaped structure. It can be understood that the lateral protrusion 122011 of the second fluid control surface 1220 of the movable valve plate 122 of the planar valve 10 of the water purifier of the present invention and the fourth conduction opening 1041 of the fourth channel 104 are arranged so that the lateral protrusion 122011 can close the fourth conduction opening 104 of the fourth channel 104 when the planar valve 10 is in the standby working position, thereby helping the planar valve 10 of the water purifier of the present invention to have 4 adjacent rotation angles of 90 degrees and control the water purifier of the present invention to achieve 4 different functions.

[0061] It is worth noting that the first, second, third, fourth, fifth and / or sixth in this article are only used to name different parts (or elements) of the present invention and to distinguish between different parts, elements and structures of the present invention, and they themselves do not have the meaning of order or number.

[0062] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are provided for illustrative purposes only and are not intended to limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A water purifier, characterized in that: include: A 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 sewage discharge opening and a water inlet, wherein the valve core is disposed in the valve cavity; and A filter device, wherein the filter device has a first connecting opening and a second connecting opening, wherein the first opening of the valve body is connected to the first connecting opening of the filter device, the second opening of the valve body is connected to the second connecting opening of the filter device, and the water inlet of the valve body is suitable for connecting to a raw water source.

2. The water purifier according to claim 1, characterized in that: When the control valve is in the water treatment working position, the valve core of the control valve forms a first water treatment flow channel and a second water treatment flow channel, wherein the first water treatment flow channel is respectively connected to the water inlet and the first opening of the valve body, and the second water treatment flow channel is respectively connected to the second opening and the third opening.

3. The water purifier according to claim 2, characterized in that: When the control valve is in the backwash working position, the valve core of the control valve forms a first backwash channel and a second backwash channel, wherein the first backwash channel is respectively connected to the water inlet and the second opening of the valve body, and the second backwash channel is respectively connected to the first opening and the sewage discharge opening of the valve body.

4. The water purifier according to claim 3, characterized in that: When the control valve is in the bypass working position, the valve core of the control valve forms a raw water supply flow channel, wherein the raw water supply flow channel is respectively connected to the water inlet and the third opening of the valve body.

5. The water purifier according to claim 4, characterized in that: When the control valve is in the bypass working position, the valve core of the control valve further forms a pressure relief channel, wherein the pressure relief channel is respectively communicated with the second opening of the valve body and the sewage discharge opening.

6. The water purifier according to claim 4, characterized in that: When the control valve is in the standby working position, the valve core of the control valve can prevent raw water from flowing toward the first opening, the second opening, the third opening and the sewage discharge opening of the valve body.

7. The water purifier according to claim 2, characterized in that: The control valve is a planar valve, wherein the valve core of the planar valve further includes a fixed valve disc and a movable valve disc, wherein the fixed valve disc has a first fluid control surface, and the movable valve disc has a second fluid control surface, wherein the movable valve disc and the fixed valve disc are both arranged in the valve cavity, wherein the second fluid control surface of the movable valve disc is arranged on the first fluid control surface of the fixed valve disc, and the movable valve disc is arranged to be rotatable relative to the fixed valve disc, wherein the planar valve has a first channel, a second channel, a third channel, a fourth channel, a fifth channel and a sixth channel, wherein the first channel, the second channel, the third channel and the fourth channel are respectively arranged on the fixed valve disc and respectively extend from the first fluid control surface of the fixed valve disc; The fifth channel and the sixth channel are respectively provided on the movable valve disc and respectively extend from the second fluid control surface of the movable valve disc, 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 sewage opening, and the fifth channel is connected to the water inlet. When the movable valve disc of the planar valve rotates relative to the fixed valve disc so that the planar valve is in the water treatment working position, the fifth channel of the planar valve is connected to the first channel, thereby forming the first water treatment flow channel respectively connected to the water inlet and the first opening, and the sixth channel is respectively connected to the second channel and the third channel, thereby forming the second water treatment flow channel respectively connected to the second opening and the third opening.

8. The water purifier according to claim 7, characterized in that: When the movable valve disc of the planar valve rotates relative to the fixed valve disc, so that the planar valve is in the backwash working position, the fifth channel of the planar valve is connected with the second channel, thereby forming a first backwash flow channel respectively connected to the water inlet and the second opening, and the sixth channel is respectively connected with the first channel and the fourth channel, thereby forming a second backwash flow channel respectively connected to the first opening and the sewage discharge opening.

9. The water purifier according to claim 8, characterized in that: When the movable valve disc of the planar valve rotates relative to the fixed valve disc, so that the planar valve is in the bypass working position, the fifth channel of the planar valve is connected to the third channel, thereby forming a raw water supply channel respectively connected to the water inlet and the third opening.

10. The water purifier according to claim 9, characterized in that: When the planar valve is in the bypass working position, the sixth channel of the planar valve is connected to the second channel and the fourth channel respectively, thereby forming a pressure relief flow channel connected to the second opening and the sewage discharge opening respectively.

11. The water purifier according to claim 9, characterized in that: When the movable valve plate of the planar valve rotates relative to the fixed valve plate, so that the planar valve is in the standby working position, the second channel and the fourth channel of the planar valve are respectively blocked by the second fluid control surface of the movable valve plate, and the fifth channel is blocked by the first fluid control surface of the fixed valve plate.

12. The water purifier according to claim 11, characterized in that: The edge portion of the first fluid control surface of the fixed valve plate is divided into a first part, a second part, a third part and a fourth part; the edge area of the second fluid control surface of the movable valve plate of the planar valve is divided into a first area, a second area, a third area and a fourth area, wherein the first channel extends downward from the first part of the first fluid control surface of the fixed valve plate, the fourth channel extends downward and outward from the second part of the first fluid control surface of the fixed valve plate, the second channel extends downward from the third part of the first fluid control surface of the fixed valve plate, the third channel extends downward and outward from the fourth part of the first fluid control surface of the fixed valve plate, the fifth channel extends upward from the first area of the second fluid control surface of the movable valve plate, and the sixth channel extends upward from the third area and the fourth area of the second fluid control surface of the movable valve plate.

13. The water purifier according to claim 12, characterized in that: The second fluid control surface of the movable valve plate further forms a transverse protrusion, so that the transverse protrusion can close the fourth conducting opening of the fourth channel when the planar valve is in the standby working position.

14. The water purifier according to claim 13, characterized in that: The fourth conducting opening of the fourth channel is arranged adjacent to the third portion of the first fluid control surface of the fixed valve plate, wherein the lateral protrusion of the second fluid control surface of the movable valve plate extends from the second area of the second fluid control surface of the movable valve plate to the first area of the second fluid control surface of the movable valve plate.

15. The water purifier according to claim 13, characterized in that: The fourth conducting opening of the fourth channel is arranged adjacent to the first portion of the first fluid control surface of the fixed valve plate, wherein the lateral protrusion of the second fluid control surface of the movable valve plate extends from the fourth area of the second fluid control surface of the movable valve plate to the first area of the second fluid control surface of the movable valve plate.

16. The water purifier according to claim 13, 14 or 15, characterized in that: The first conducting opening of the first channel is formed in the first part of the first fluid control surface of the fixed valve plate; the fourth conducting opening of the fourth channel is formed in the second part of the first fluid control surface of the fixed valve plate; the second conducting opening of the second channel is formed in the third part of the first fluid control surface of the fixed valve plate; the third conducting opening of the third channel is formed in the fourth part of the first fluid control surface of the fixed valve plate.

17. The water purifier according to claim 7, characterized in that: When the planar valve is in the water treatment working position, the fourth channel is blocked by the second fluid control surface of the movable valve plate.

18. The water purifier according to claim 8, characterized in that: When the planar valve is in the backwash working position, the third passage is blocked by the second fluid control surface of the movable valve plate.

19. The water purifier according to claim 9, characterized in that: When the planar valve is in the bypass working position, the first passage is blocked by the second fluid control surface of the movable valve plate.

20. The water purifier according to any one of claims 1-15 and 17-19, characterized in that: The filter device includes a shell and a filter element, wherein the shell forms a first accommodating cavity, wherein the filter element is arranged in the first accommodating cavity of the shell, wherein the shell and the filter element form a raw water channel located therebetween, and the filter element forms a clean water channel, wherein the first communicating opening of the filter device is connected to the raw water channel, and the second communicating opening is connected to the clean water channel.

21. The water purifier according to claim 12, 13, 14 or 15, characterized in that: The first channel of the planar valve is arranged on the first part of the first fluid control surface of the fixed valve plate; the fourth channel is arranged on the second part of the first fluid control surface of the fixed valve plate; the second channel is arranged on the third part of the first fluid control surface of the fixed valve plate; the third channel is arranged on the fourth part of the first fluid control surface of the fixed valve plate, so that the movable valve plate of the planar valve can switch between two adjacent working positions every time it rotates 90 degrees relative to the fixed valve plate.

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