Water purifier

Abstract

The utility model provides a water purifier which comprises a control valve and a filtering device, the control valve comprises a valve body and a valve core, the valve body forms a valve cavity, a first opening, a second opening, a third opening, a pollution discharge opening and a water inlet, the valve core is arranged in the valve cavity, and the filtering device is arranged in the valve cavity. Wherein the filtering device is provided with a first communication opening and a second communication opening, the first opening of the valve body is communicated with the first communication opening of the filtering device, the second opening of the valve body is communicated with the second communication opening of the filtering device, and the water inlet of the valve body is suitable for being communicated with a raw water source.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water purifier, especially to a water purifier which can purify raw water (or tap water) to obtain purified water. The utility model further relates to a control valve for the water purifier. BACKGROUND

[0002] With the increasing improvement of people's living standards and the increasing emphasis on health, people's requirements for the quality of domestic water are also getting higher and higher. However, many tap water sources are surface water, which is provided to users after purification and disinfection by a waterworks. The water treatment by the waterworks is relatively extensive and is not sufficient to remove all impurities, such as particulate pollutants (flocculent gel, silt, and even bacteria, etc.). In addition, the aging of the tap water supply network also brings new pollution to the tap water. In order to further purify the tap water and improve its cleanliness, people use various water purification equipment to treat the tap water. For example, a water purifier (filter material is activated carbon, PP cotton or ultrafiltration filter material, etc.) is used to filter or ultrafilter the tap water, and an RO membrane water purifier is used to obtain purified water with extremely high purity.

[0003] Generally, the filter core of the water purifier has a certain service life and should be replaced in time after being used for a period of time. Therefore, the filter core of most existing water purifiers is designed to be detachable to facilitate the replacement of the filter core by the user. However, due to the water pressure in the filter core of the water purifier, the user needs to exert a relatively large force to detach the filter core (or the filter core shell). In addition, when replacing the filter core, due to the water pressure in the filter core of the water purifier, the water in the filter core of the water purifier is easy to flow out and spray on the ground. SUMMARY

[0004] The main advantage of the utility model is to provide a water purifier, wherein the control valve of the water purifier of the utility model can control the water purifier of the utility model to realize various functions such as water filtration and backwashing.

[0005] Another advantage of the utility model is to provide a water purifier, wherein the control valve of the water purifier of the utility model is designed to control the water pressure in the filter core of the water purifier of the utility model when being switched to a bypass working position, thereby facilitating the replacement of the filter core by the user and preventing the water in the filter core from flowing to the ground when replacing the filter core.

[0006] Other purposes and features of the utility model are fully embodied through the following detailed description.

[0007] According to one aspect of the utility model, the water purifier of the utility model which can realize the foregoing and other purposes and advantages comprises:

[0008] A 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 blowdown opening, and a water inlet, and the valve core is arranged in the valve cavity; and

[0009] A filter device, wherein the filter device has a first communication opening and a second communication opening, the first opening of the valve body is in communication with the first communication opening of the filter device, the second opening of the valve body is in communication with the second communication opening of the filter device, and the water inlet of the valve body is adapted to be in communication with a raw water source.

[0010] Further purposes and advantages of the present application will be fully understood from the following description and drawings.

[0011] These and other purposes, features and advantages of the present application will be fully understood from the following detailed description and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a front view of the water purifier according to the above embodiment of the present application.

[0013] Figure 2 is an assembly view of the water purifier according to the above embodiment of the present application.

[0014] Figure 3A is a sectional view of the water purifier according to the above embodiment of the present application, wherein the water purifier shown in the figure is in a water treatment working state, and the water flow direction in the working state is indicated by the dotted arrow in the figure.

[0015] Figure 3B is another sectional view of the water purifier according to the above embodiment of the present application, wherein the water purifier shown in the figure is in a water treatment working state, and the water flow direction in the working state is indicated by the dotted arrow in the figure.

[0016] Figure 4 is another sectional view of the water purifier according to the above embodiment of the present application, wherein the water purifier shown in the figure is in a bypass working state, and the water flow directions of the raw water supply channel and the pressure relief channel in the working state are indicated by the dotted arrows in the figure.

[0017] Figure 5A is another sectional view of the water purifier according to the above embodiment of the present application, wherein the water purifier shown in the figure is in a backwashing working state, and the water flow direction in the working state is indicated by the dotted arrow in the figure.

[0018] Figure 5Bis another sectional view of the water purifier according to the above-mentioned embodiment of the present utility model, wherein the water purifier shown in the figure is in a standby state.

[0019] Figure 6 is another sectional view of the water purifier according to the above-mentioned embodiment of the present utility model, wherein the water purifier shown in the figure is in a standby state.

[0020] Figure 7A is a perspective view of the valve body of the control valve of the water purifier according to the above-mentioned embodiment of the present utility model, and the control valve is a flat valve.

[0021] Figure 7B is a sectional view of the water purifier according to the above-mentioned embodiment of the present utility model from the bottom.

[0022] Figure 7C is a perspective view of the valve body and the fixed valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model, wherein the fixed valve plate is arranged in the valve cavity of the flat valve.

[0023] Figure 7D is a perspective view of the valve body, the fixed valve plate and the movable valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model, wherein the movable valve plate is arranged in the valve cavity of the flat valve.

[0024] Figure 7E is a sectional view of the valve body of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0025] Figure 7F is another sectional view of the valve body of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0026] Figure 7G is another sectional view of the valve body of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0027] Figure 8A is a perspective view of the fixed valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0028] Figure 8B is a bottom view of the fixed valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0029] Figure 8C is a top view of the fixed valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0030] Figure 8D is a top view of the movable valve plate of the flat valve of the water purifier according to the above-mentioned embodiment of the present utility model.

[0031] Figure 8Eis the perspective view of the moving valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model.

[0032] Figure 8F is another perspective view of the moving valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model.

[0033] Figure 9A is the structural schematic view of the fixed valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model.

[0034] Figure 9B is the structural schematic view of the moving valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model, wherein the dotted line in the drawing shows the through blind hole of the moving valve sheet.

[0035] Figure 10A is the equal division schematic view of the fixed valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model, wherein the drawing shows that each channel is arranged at the specific equal division position of the fixed valve sheet.

[0036] Figure 10B is the equal division schematic view of the moving valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model, wherein the drawing shows that each channel is arranged at the specific equal division position of the moving valve sheet.

[0037] Figure 11A is the communication schematic view between the channel of the moving valve sheet and the channel of the fixed valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model when the flat valve is in the water treatment working position, wherein the shaded part in the drawing shows the mutually communicated channels of the moving valve sheet and the fixed valve sheet of the flat valve.

[0038] Figure 11B is the communication schematic view between the channel of the moving valve sheet and the channel of the fixed valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model when the flat valve is in the bypass working position, wherein the shaded part in the drawing shows the mutually communicated channels of the moving valve sheet and the fixed valve sheet of the flat valve.

[0039] Figure 11C is the communication schematic view between the channel of the moving valve sheet and the channel of the fixed valve sheet of the flat valve of the water purifier according to the above embodiment of the utility model when the flat valve is in the backwashing working position, wherein the shaded part in the drawing shows the mutually communicated channels of the moving valve sheet and the fixed valve sheet of the flat valve.

[0040] Figure 11Dis a schematic diagram of the communication between the passage of the moving valve disc and the passage of the fixed valve disc of the flat valve of the water purifier according to the embodiment of the present utility model when the flat valve is in the standby working position, wherein the shaded part in the diagram shows the mutually communicating passages of the moving valve disc and the fixed valve disc of the flat valve. DETAILED DESCRIPTION

[0041] The following description is provided to enable those skilled in the art to realize the present utility model. The preferred embodiments in the following description are only examples, and other obvious modifications can be made by those skilled in the art. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present utility model.

[0042] Those skilled in the art should understand that in the disclosure of the present utility model, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the present utility model.

[0043] It can 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 one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0044] Referring to the drawings of the specification Figures 1-6 , the water purifier according to the embodiment of the present utility model is illustrated, wherein the water purifier of the present utility model comprises a control valve 10 and a filtering device 20, wherein the filtering 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 arranged to control the flow of water, such as to provide raw water (or tap water) to the filtering device 20, and to control the provision of purified water generated or produced by the filtering device 20 by treating (filtering) raw water. It can be understood that the control valve 10 of the water purifier of the present utility model is in communication with a tap water source, such as a tap water pipe. In other words, the control valve 10 controls raw water (or tap water) and provides it to the filtering device 20.

[0045] As shown in the drawings Figures 1-6As shown, the filter device 20 of the water purifier according to the embodiment of the present application comprises a housing 21 and a filter core 22, wherein the housing 21 forms a first accommodating cavity 210, the filter core 22 is arranged in the first accommodating cavity 210 of the housing 21, the housing 21 and the filter core 22 form a raw water passage 2101 between them, the filter core 22 forms a purified water passage 2201, the first communication opening 201 of the filter device 20 is in communication with the raw water passage 2101, and the second communication opening 202 is in communication with the purified water passage 2201. Accordingly, when raw water flows into the raw water passage 2101 from the first communication opening 201 under the action of water pressure, is treated by the filter core 22 under the action of water pressure, and the generated purified water flows out of the purified water passage 2201 of the filter core 22, the water purifier is in a filtering (purification or water treatment) state; when raw water flows into the purified water passage 2201 from the second communication opening 202 under the action of water pressure, flows to the raw water passage 2101 under the action of water pressure, and is discharged, the water purifier is in a back (reverse) flushing state. It can be understood that the back flushing herein refers to that when the filter core 22 is flushed, the flow direction of the raw water flowing through the filter core 22 is opposite to the flow direction of the raw water flowing through the filter core 22 when the filter core 22 purifies (filters or treats water) the raw water. Therefore, preferably, the raw water passage 2101 is located at one side (or the outer side) of the filter core 22, and the purified water passage 2201 is formed at the opposite side (or the inner side) of the filter core 22. Preferably, the filter core 22 is a PP cotton filter core, a carbon particle filter core, a ceramic filter core, a carbon rod filter core, a carbon fiber filter core, a stainless steel mesh filter core, an ultrafiltration filter core or other similar filter cores. It can be understood that the filter core 22 can also be a filter core made of other materials or a composite filter core made of multiple materials, for example, a composite filter core composed of any two or more of ceramic, carbon fiber, PP cotton, activated carbon particles and resin.

[0046] As shown in the drawings Figures 1-7G As shown, the control valve 10 of the water purifier according to the embodiment of the present application comprises 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 blowdown opening 1104 and a water inlet 1105, the valve core 12 is arranged in the valve cavity 110, the first opening 1101 of the valve body 11 is in communication with the first communication opening 201 of the filter device 20, the second opening 1102 of the valve body 11 is in communication with the second communication opening 202 of the filter device 20, and the water inlet 1105 of the valve body 11 is adapted to be in communication with a raw water source (for example, a tap water pipe).

[0047] As shown in the drawings Figure 3A , Figure 3B andFigures 7A-7G As shown, the control valve 10 of the water purifier according to the embodiment of the present application has one 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 connected with the water inlet 1105 and the first opening 1101 of the valve body 11 respectively, and the second water treatment flow channel 10012 is connected with the second opening 1102 and the third opening 1103 respectively. Correspondingly, 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 to the first opening 1101 of the valve body 11 through the first water treatment flow channel 10011, and further flows into the filter device 20 from the first communication opening 201 of the filter device 20 under the action of water pressure, and the purified water treated by the filter device 20 flows out from the second communication opening 202 under the action of water pressure and further flows to the third opening 1103 from the second opening 1102 and the second water treatment flow channel 10012 and is provided. Therefore, the third opening 1103 of the control valve 10 of the water purifier according to the embodiment of the present application is a water outlet. It can be understood that when the control valve 10 of the water purifier according to the embodiment of the present application is controlled to be in the water treatment working position, the water purifier according to the present application is controlled to be in its water treatment working state.

[0048] As shown in the accompanying drawings Figure 4 and Figures 7A-7GAs shown, the control valve 10 of the water purifier according to the embodiment of the present application 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 flow channel 10021 and a pressure relief flow channel 10022, wherein the raw water supply flow channel 10021 is connected with the water inlet 1105 and the third opening 1103 of the valve body 11 respectively, and the pressure relief flow channel 10022 is connected with the second opening 1102 and the blowdown opening 1104 of the valve body 11 respectively. Accordingly, when the control valve 10 is in the bypass 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 to the third opening 1103 of the valve body 11 through the raw water supply flow channel 10021 and supplies raw water, and the water pressure in the filter device 20 is discharged through the second opening 1102, the pressure relief flow channel 10022 and the blowdown opening 1104. It can be understood that when the control valve 10 of the water purifier according to the embodiment of the present application is controlled to be in the bypass working position, the water purifier according to the present application is controlled to be in the bypass working state. It can be understood that when the water pressure in the filter device 20 of the water purifier according to the embodiment of the present application is discharged through the second communication opening 202, the second opening 1102, the pressure relief flow channel 10022 and the blowdown opening 1104, the user can easily disassemble the filter device 20 (or the shell 21 thereof) and replace the filter element 22, and when the filter device 20 is disassembled, the raw water is not affected to be supplied through the third opening 1103 of the control valve 10.

[0049] As shown in the accompanying drawings Figure 5A 、 Figure 5B and Figures 7A-7GAs shown, the control valve 10 of the water purifier according to the embodiment of the present application further has a backwashing working position, wherein when the control valve 10 is in the backwashing working position, the valve core 12 of the control valve 10 forms a first backwashing flow channel 10031 and a second backwashing flow channel 10032, wherein the first backwashing flow channel 10031 is connected with the water inlet 1105 and the second opening 1102 of the valve body 11 respectively, and the second backwashing flow channel 10032 is connected with the first opening 1101 and the blowdown opening 1104 of the valve body 11 respectively. Correspondingly, when the control valve 10 is in the backwashing 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 to the second opening 1102 of the valve body 11 through the first backwashing flow channel 10031, further flows into the filter device 20 from the second communication opening 202 of the filter device 20, and under the action of water pressure, backwashes the filter element 22 of the filter device 20, and the produced sewage flows out from the first communication opening 201 of the filter device 20, and then under the action of water pressure, is discharged through the first opening 1101, the second backwashing flow channel 10032 and the blowdown opening 1104 of the valve body 11 of the control valve 10. When the control valve 10 of the water purifier according to the embodiment of the present application is controlled to be in the backwashing working position, the water purifier according to the present application is controlled to be in the backwashing working state.

[0050] As shown in the accompanying drawings Figures 6-7G As shown, the control valve 10 of the water purifier according to the embodiment of the present application 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 blowdown opening 1104 of the valve body 11.

[0051] As shown in the accompanying drawings Figures 7A-10B As shown, the control valve 10 of the water purifier according to the embodiment of the present application is a flat valve, wherein the valve core 12 of the flat valve 10 further includes a fixed valve piece 121 and a movable valve piece 122, wherein the fixed valve piece 121 has a first fluid control surface 1210, and the movable valve piece 122 has a second fluid control surface 1220, wherein the movable valve piece 122 and the fixed valve piece 121 are arranged in the valve cavity 110, the second fluid control surface 1220 of the movable valve piece 122 is arranged on the first fluid control surface 1210 of the fixed valve piece 121, and the movable valve piece 122 is arranged to be able to rotate relative to the fixed valve piece 121. Preferably, the water inlet 1105 is connected with the valve cavity 110 of the valve body 11.

[0052] As shown in the accompanying drawings Figures 7A-10BAs shown, the plane valve 10 of the water purifier has a first passage 101, a second passage 102, a third passage 103, a fourth passage 104, a fifth passage 105 and a sixth passage 106. The first passage 101, the second passage 102, the third passage 103 and the fourth passage 104 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 fifth passage 105 and the sixth passage 106 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. The first passage 101 is in communication with the first opening 1101, the second passage 102 is in communication with the second opening 1102, the third passage 103 is in communication with the third opening 1103, the fourth passage 104 is in communication with the blowdown opening 1104, and the fifth passage 105 is in communication with the water inlet 1105. Preferably, the sixth passage 106 is a through blind hole. Preferably, the fifth passage 105 is in communication with the water inlet 1105 through the valve cavity 110.

[0053] As shown in the accompanying drawings, Figures 7A-10B As shown, the first fluid control surface 1210 of the fixed valve plate 121 of the plane valve 10 of the water purifier forms a center portion 12101 and an edge portion 12102 extending outward from the center portion 12101. The first passage 101, the fourth passage 104, the second passage 102 and the third passage 103 of the plane valve 10 are arranged in this order clockwise on the edge portion 12102 of the first fluid control surface 1210 of the fixed valve plate 121. The fifth passage 105 and the sixth passage 106 of the plane valve 10 are arranged on the second fluid control surface 1220 of the movable valve plate 122. Alternatively, the first passage 101, the fourth passage 104, the second passage 102 and the third passage 103 of the plane valve 10 are arranged in this order counterclockwise on the edge portion 12102 of the first fluid control surface 1210 of the fixed valve plate 121. Preferably, the first passage 101, the fourth passage 104, the second passage 102 and the third passage 103 of the plane valve 10 are arranged separately on the first fluid control surface 1210 of the fixed valve plate 121. The fifth passage 105 and the sixth passage 106 of the plane valve 10 are arranged separately on the second fluid control surface 1220 of the movable valve plate 122.

[0054] As shown in the accompanying drawings, Figure 3A , Figure 3B and Figure 11AAs shown in the figure, in this embodiment of the water purifier, the movable valve plate 122 of the planar valve 10 can rotate relative to the fixed valve plate 121, thereby giving the planar valve 10 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 a first water treatment flow channel 10011 that is connected to the inlet 1105 and the first opening 1101 respectively. The sixth channel 106 is connected to the second channel 102 and the third channel 103 respectively, thereby forming a second water treatment flow channel 10012 that is connected to the second opening 1102 and the third opening 1103 respectively. As shown in the figure. Figure 3A , Figure 3B and Figure 11A As shown, 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 moving valve plate 122. Correspondingly, when the planar valve 10 is in the water treatment working position, raw water flows in from the inlet 1105 of the valve body 11 of the planar valve 10 under water pressure, flows into the first channel 101 through the fifth channel 105 and flows to the first opening 1101 of the valve body 11, and further flows into the filter device 20 from the first connecting opening 201. The purified water after being treated by the filter device 20 flows out from the second connecting opening 202 under water pressure and further flows into the second opening 1102, and then flows to the third opening 1103 through the second channel 102, the sixth channel 106 and the third channel 103 and is supplied.

[0055] As shown in the attached image. Figure 4 and Figure 11B As shown, in this embodiment of the water purifier, the movable valve plate 122 of the planar valve 10 can rotate relative to the fixed valve plate 121, thereby giving the planar valve 10 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, which is connected to the inlet 1105 and the third opening 1103 respectively. Further, 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 respectively, thereby forming the pressure relief channel 10022, which is connected to the second opening 1102 and the drain opening 1104 respectively. (See attached figures) Figure 4 and Figure 11BAs shown, when the flat valve 10 is in the bypass working position, the first channel 101 is blocked by the second fluid control surface 1220 of the moving valve sheet 122. Accordingly, when the flat valve 10 is in the bypass working position, raw water flows into the water inlet 1105 of the valve body 11 of the flat valve 10 under water pressure, flows through the fifth channel 105 and the third channel 103 to the third opening 1103 and is provided. Further, when the flat valve 10 is in the bypass working position, the water pressure in the filter device 20 is discharged through the second communication opening 202, the second opening 1102, the second channel 102, the sixth channel 106, the fourth channel 104 and the blowdown opening 1104. It can be understood that when the flat valve 10 of the water purifier according to the embodiment of the present application is controlled to be in the bypass working position, the water purifier according to the present application is controlled to be in the bypass working state. It can be understood that after the water pressure in the filter device 20 of the water purifier according to the embodiment of the present application is discharged through the pressure relief flow passage 10022, the user can easily disassemble the filter device 20 (or the shell 21 thereof) and replace the filter element 22, and when disassembling the filter device 20, the raw water is not affected through the third opening 1103 of the flat valve 10.

[0056] As shown in the accompanying drawings Figure 5A 、 Figure 5B and Figure 11C , the moving valve sheet 122 of the flat valve 10 of the water purifier according to the embodiment of the present application can rotate relative to the fixed valve sheet 121 so that the flat valve 10 further has a backwashing working position. When the flat valve 10 is in the backwashing working position, the fifth channel 105 of the flat valve 10 is in communication with the second channel 102, thereby forming the first backwashing flow passage 10031 in communication with the water inlet 1105 and the second opening 1102, respectively. The sixth channel 106 is in communication with the first channel 101 and the fourth channel 104, respectively, thereby forming the second backwashing flow passage 10032 in communication with the first opening 1101 and the blowdown opening 1104, respectively. As shown in the accompanying drawings Figure 5A 、 Figure 5B and Figure 11CAs shown, when the flat valve 10 is in the backwashing working position, the third passage 103 is blocked by the second fluid control surface 1220 of the moving valve disc 122. Accordingly, when the flat valve 10 is in the backwashing working position, raw water flows into the flat valve 10 from the water inlet 1105 of the valve body 11 under water pressure, flows into the second passage 102 through the fifth passage 105 and flows to the second opening 1102 of the valve body 11, and further flows into the filter device 20 from the second communication opening 202. The sewage after backwashing the filter core 22 of the filter device 20 flows out from the first communication opening 201, and is discharged through the first opening 1101, the first passage 101, the sixth passage 106, the fourth passage 104 and the sewage discharge opening 1104.

[0057] As shown in the accompanying drawings, Figure 4 and Figure 11D As shown in the accompanying drawings,

[0058] As shown in the accompanying drawings, Figures 8A-11DAs shown, the first fluid control surface 1210 of the fixed valve piece 121 of the planar valve 10 of the water purifier has a center portion 12101 and an edge portion 12102 shown by the dot-dash line in the figure, wherein the center portion 12101 and the edge portion 12102 are arranged at the top end portion 1214 of the fixed valve piece 121, and the edge portion 12102 (or the portion outside the center portion 12101) of the first fluid control surface 1210 is equally divided into a first portion 1201, a second portion 1202, a third portion 1203 and a fourth portion 1204 shown by the dot-dash line; the second fluid control surface 1220 of the moving valve piece 122 of the planar valve 10 has a center area 12201 and an edge area 12202 shown by the dot-dash line in the figure, wherein the center area 12201 and the edge area 12202 are arranged at the bottom end portion 1221 of the moving valve piece 122, and the edge area 12202 (the portion outside the center area 12201) of the second fluid control surface 1220 is equally divided into a first area 2001, a second area 2002, a third area 2003 and a fourth area 2004 shown by the dot-dash line; wherein the first channel 101 extends downward from the first portion 1201 of the first fluid control surface 1210 of the fixed valve piece 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 piece 121, the second channel 102 extends downward from the third portion 1203 of the first fluid control surface 1210 of the fixed valve piece 121, the third channel 103 extends downward and outward from the fourth portion 1204 of the first fluid control surface 1210 of the fixed valve piece 121, the fifth channel 105 extends upward from the first area 2001 of the second fluid control surface 1220 of the moving valve piece 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 moving valve piece 122.Therefore, the first passage 101, the fourth passage 104, the second passage 102 and the third passage 103 of the plane valve 10 of the water purifier according to the embodiment of the present application are arranged on the first fluid control surface 1210, and the fifth passage 105 and the sixth passage 106 of the plane valve 10 are arranged on the second fluid control surface 1220 of the moving valve disc 122. When the first passage 101 of the plane valve 10 is arranged at one equal division position of the first fluid control surface 1210, the second passage 102 of the plane valve 10 is arranged at one equal division position of the first fluid control surface 1210, the third passage 103 of the plane valve 10 is arranged at one equal division position of the first fluid control surface 1210, and the fourth passage 104 of the plane valve 10 is arranged at one equal division position of the second fluid control surface 1220. Correspondingly, the first passage 101, the fourth passage 104, the second passage 102, the third passage 103, the fifth passage 105 and the sixth passage 106 of the plane valve 10 of the water purifier according to the embodiment of the present application are arranged in such a way that they have four different working positions, and the user can switch between two adjacent working positions by rotating the moving valve disc 122 of the plane valve 10 by 90 degrees relative to the fixed valve disc 121. In other words, the moving valve disc 122 of the plane valve 10 of the water purifier according to the embodiment of the present application can switch between two adjacent working positions once by rotating 90 degrees relative to the fixed valve disc 121. More specifically, the first passage 101 has a first conductive opening 1011 formed on the first fluid control surface 1210 of the fixed valve disc 121, the second passage 102 has a second conductive opening 1021 formed on the first fluid control surface 1210 of the fixed valve disc 121, the third passage 103 has a third conductive opening 1031 formed on the first fluid control surface 1210 of the fixed valve disc 121, and the fourth passage 104 has a fourth conductive opening 1041 formed on the first fluid control surface 1210 of the fixed valve disc 121, and the first conductive opening 1011, the fourth conductive opening 1041, the second conductive opening 1021 and the third conductive opening 1031 are formed on the first portion 1201 (or the first equal division position), the second portion 1202 (or the second equal division position), the third portion 1203 (or the third equal division position) and the fourth portion 1204 (or the fourth equal division position) of the first fluid control surface 1210 of the fixed valve disc 121, respectively.

[0059] As shown in the accompanying drawings Figures 8A-11DAs shown, the second fluid control surface 1220 of the moving valve plate 122 of the planar valve 10 of the water purifier according to the embodiment of the present application further forms a lateral protrusion 122011, and the fourth conductive opening 1041 of the fourth channel 104 is arranged adjacent to the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 121 (or away from the first portion 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 moving valve plate 122 extends from the second region 2002 of the second fluid control surface 1220 of the moving valve plate 122 to the first region 2001 of the second fluid control surface 1220 of the moving valve plate 122, so that the fifth conductive opening 1051 of the fifth channel 105 of the planar valve 10 has a knife handle structure. Alternatively, the fourth conductive opening 1041 of the fourth channel 104 can also be arranged adjacent to the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 121 (or away from the third portion 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 moving valve plate 122 extends from the fourth region 2004 of the second fluid control surface 1220 of the moving valve plate 122 to the first region 2001 of the second fluid control surface 1220 of the moving valve plate 122, so that the fifth conductive opening 1051 of the fifth channel 105 of the planar valve 10 has a knife handle structure. It can be understood that the lateral protrusion 122011 of the second fluid control surface 1220 of the moving valve plate 122 of the planar valve 10 of the water purifier according to the present application and the fourth conductive opening 1041 of the fourth channel 104 are arranged so that the lateral protrusion 122011 can close the fourth conductive 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 according to the present application to have four working positions with adjacent rotation angles of 90 degrees and controlling the water purifier according to the present application to realize four different functions.

[0060] It is worth noting that the first, second, third, fourth, fifth and / or sixth herein are only used for naming and distinguishing different components (or elements) of the present application, and do not have the meaning of order or number.

[0061] It should be understood by those skilled in the art that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The purpose of the present application has been fully and effectively achieved. The function and structural principle of the present application has been shown and described in the embodiments, and the implementation of the present application can be any modification or modification without departing from the principle.

Claims

1. A water purifier characterized by comprising: comprises: 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 blowdown 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 communication opening and a second communication opening, wherein the first opening of the valve body is in communication with the first communication opening of the filter device, the second opening of the valve body is in communication with the second communication opening of the filter device, and the water inlet of the valve body is adapted to be in communication with a raw water source. When the control valve is in a water treatment operating position, the valve core of the control valve forms a first water treatment flow passage and a second water treatment flow passage, wherein the first water treatment flow passage is in communication with the water inlet and the first opening of the valve body, respectively, and the second water treatment flow passage is in communication with the second opening and the third opening of the valve body, respectively.

2. The water purifier according to claim 1, characterized in that, When the control valve is in a backwashing operating position, the valve core of the control valve forms a first backwashing flow passage and a second backwashing flow passage, wherein the first backwashing flow passage is in communication with the water inlet and the second opening of the valve body, respectively, and the second backwashing flow passage is in communication with the first opening and the blowdown opening of the valve body, respectively.

3. The water purifier according to claim 2, wherein When the control valve is in a bypass operating position, the valve core of the control valve forms a raw water supply flow passage, wherein the raw water supply flow passage is in communication with the water inlet and the third opening of the valve body, respectively.

4. The water purifier according to claim 2, wherein When the control valve is in a standby operating position, the valve core of the control valve is capable of preventing raw water from flowing to the first opening, the second opening, the third opening, and the blowdown opening of the valve body.

5. The water purifier according to claim 2, wherein The control valve is a flat valve, wherein the valve core of the flat valve further comprises a fixed valve plate and a movable valve plate, wherein the fixed valve plate has a first fluid control surface, the movable valve plate has a second fluid control surface, the movable valve plate and the fixed valve plate are disposed in the valve cavity, the second fluid control surface of the movable valve plate is disposed on the first fluid control surface of the fixed valve plate, and the movable valve plate is disposed to be rotatable relative to the fixed valve plate, wherein the flat valve has a first passage, a second passage, a third passage, a fourth passage, a fifth passage, and a sixth passage, wherein the first passage, the second passage, the third passage, and the fourth passage are provided in the fixed valve plate and extend from the first fluid control surface of the fixed valve plate, respectively; 6. The water purifier according to claim 2, wherein ​ The fifth passage and the sixth passage 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 passage is communicated with the first opening, the second passage is communicated with the second opening, the third passage is communicated with the third opening, the fourth passage is communicated with the blowdown opening, and the fifth passage is communicated with the water inlet, wherein when the movable valve plate of the flat valve is rotated relative to the fixed valve plate so that the flat valve is in the water treatment working position, the fifth passage of the flat valve is communicated with the first passage, thereby forming the first water treatment flow channel communicated with the water inlet and the first opening respectively, and the sixth passage is communicated with the second passage and the third passage respectively, thereby forming the second water treatment flow channel communicated with the second opening and the third opening respectively.

7. The water purifier according to claim 6, wherein When the movable valve plate of the flat valve is rotated relative to the fixed valve plate so that the flat valve is in the backwashing working position, the fifth passage of the flat valve is communicated with the second passage, thereby forming a first backwashing flow channel communicated with the water inlet and the second opening respectively, and the sixth passage is communicated with the first passage and the fourth passage respectively, thereby forming a second backwashing flow channel communicated with the first opening and the blowdown opening respectively.

8. The water purifier according to claim 7, characterized in that When the movable valve plate of the flat valve is rotated relative to the fixed valve plate so that the flat valve is in the bypass working position, the fifth passage of the flat valve is communicated with the third passage, thereby forming a raw water supply flow channel communicated with the water inlet and the third opening respectively.

9. The water purifier according to claim 8, characterized in that, When the movable valve plate of the flat valve is rotated relative to the fixed valve plate so that the flat valve is in the standby working position, the second passage and the fourth passage of the flat valve are blocked by the second fluid control surface of the movable valve plate respectively, and the fifth passage is blocked by the first fluid control surface of the fixed valve plate.

10. The water purifier according to claim 9, wherein The edge portion of the first fluid control surface of the fixed valve plate is equally divided into a first portion, a second portion, a third portion and a fourth portion, and the edge region of the second fluid control surface of the movable valve plate of the flat valve is equally divided into a first region, a second region, a third region and a fourth region, wherein the first passage extends downward from the first portion of the first fluid control surface of the fixed valve plate, the fourth passage extends downward and outward from the second portion of the first fluid control surface of the fixed valve plate, the second passage extends downward from the third portion of the first fluid control surface of the fixed valve plate, the third passage extends downward and outward from the fourth portion of the first fluid control surface of the fixed valve plate, the fifth passage extends upward from the first region of the second fluid control surface of the movable valve plate, and the sixth passage extends upward from the third region and the fourth region of the second fluid control surface of the movable valve plate.

11. The water purifier according to claim 10, wherein The second fluid control surface of the movable valve plate further forms a transverse protrusion, so that the transverse protrusion can close the fourth through opening of the fourth passage when the flat valve is in the standby working position.

12. The water purifier according to claim 11, wherein The fourth through channel has a fourth through opening disposed 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 moving valve plate extends from the fourth region of the second fluid control surface of the moving valve plate to the first region of the second fluid control surface of the moving valve plate.

13. The water purifier according to claim 11, wherein The fourth through channel has a fourth through opening disposed 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 moving valve plate extends from the fourth region of the second fluid control surface of the moving valve plate to the first region of the second fluid control surface of the moving valve plate.

14. The water purifier according to claim 11, 12 or 13, characterized in that The first through channel has a first through opening formed in the first portion of the first fluid control surface of the fixed valve plate; the fourth through channel has a fourth through opening formed in the second portion of the first fluid control surface of the fixed valve plate; the second through channel has a second through opening formed in the third portion of the first fluid control surface of the fixed valve plate; and the third through channel has a third through opening formed in the fourth portion of the first fluid control surface of the fixed valve plate.

15. The water purifier according to claim 6, wherein When the flat valve is in the water treatment working position, the fourth through channel is blocked by the second fluid control surface of the moving valve plate.

16. The water purifier according to claim 7, wherein When the flat valve is in the backwashing working position, the third through channel is blocked by the second fluid control surface of the moving valve plate.

17. The water purifier according to claim 8, wherein When the flat valve is in the bypass working position, the first through channel is blocked by the second fluid control surface of the moving valve plate.

18. The water purifier according to any one of claims 1-13, 15-17, wherein The filter device comprises a housing and a filter core, wherein the housing forms a first accommodating cavity, the filter core is disposed in the first accommodating cavity of the housing, the housing and the filter core form a raw water channel therebetween, the filter core forms a purified water channel, the first communication opening of the filter device is in communication with the raw water channel, and the second communication opening is in communication with the purified water channel.

19. The water purifier according to claim 10, 11, 12 or 13, characterized in that The first through channel of the flat valve is disposed in the first portion of the first fluid control surface of the fixed valve plate; the fourth through channel is disposed in the second portion of the first fluid control surface of the fixed valve plate; the second through channel is disposed in the third portion of the first fluid control surface of the fixed valve plate; and the third through channel is disposed in the fourth portion of the first fluid control surface of the fixed valve plate, so that the moving valve plate of the flat valve is rotated by 90 degrees relative to the fixed valve plate to switch between two adjacent working positions once. The fourth through channel has a fourth through opening disposed 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 moving valve plate extends from the fourth region of the second fluid control surface of the moving valve plate to the first region of the second fluid control surface of the moving valve plate. The fourth through channel has a fourth through opening disposed 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 moving valve plate extends from the fourth region of the second fluid control surface of the moving valve plate to the first region of the second fluid control surface of the moving valve plate. The first through channel has a first through opening formed in the first portion of the first fluid control surface of the fixed valve plate; the fourth through channel has a fourth through opening formed in the second portion of the first fluid control surface of the fixed valve plate; the second through channel has a second through opening formed in the third portion of the first fluid control surface of the fixed valve plate; and the third through channel has a third through opening formed in the fourth portion of the first fluid control surface of the fixed valve plate. When the flat valve is in the water treatment working position, the fourth through channel is blocked by the second fluid control surface of the moving valve plate. When the flat valve is in the backwashing working position, the third through channel is blocked by the second fluid control surface of the moving valve plate. When the flat valve is in the bypass working position, the first through channel is blocked by the second fluid control surface of the moving valve plate. The filter device comprises a housing and a filter core, wherein the housing forms a first accommodating cavity, the filter core is disposed in the first accommodating cavity of the housing, the housing and the filter core form a raw water channel therebetween, the filter core forms a purified water channel, the first communication opening of the filter device is in communication with the raw water channel, and the second communication opening is in communication with the purified water channel. The first through channel of the flat valve is disposed in the first portion of the first fluid control surface of the fixed valve plate; the fourth through channel is disposed in the second portion of the first fluid control surface of the fixed valve plate; the second through channel is disposed in the third portion of the first fluid control surface of the fixed valve plate; and the third through channel is disposed in the fourth portion of the first fluid control surface of the fixed valve plate, so that the moving valve plate of the flat valve is rotated by 90 degrees relative to the fixed valve plate to switch between two adjacent working positions once.

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