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, 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 used in the water purifier. Background Art

[0002] The water treatment of water plants is relatively extensive and is not enough to remove all impurities, such as particulate pollutants (flocculent gel, silt, and even bacteria). In addition, the aging of the tap water supply network will also bring new pollution to the tap water. In order to further purify the tap water and improve its cleanliness, people use a variety of water purification equipment to treat the tap water. For example, tap water is filtered or ultrafiltered using a water purifier (with activated carbon, PP cotton or ultrafiltration filter material, etc.), and purified water with extremely high purity is obtained using an RO membrane water purifier.

[0003] Generally, the filter element of a water purifier has a certain life span and should be replaced in time after a period of use. Therefore, the filter elements of most existing water purifiers are designed to be detachable to facilitate users to replace the filter elements. However, due to the water pressure in the filter element of the water purifier, the user needs a large force to remove the filter element (or the filter element housing). In addition, when replacing the filter element, due to the water pressure in the filter element of the water purifier, the water in the filter element of the water purifier is easy to flow out and spray on the ground. Utility Model Content

[0004] 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 realize multiple functions such as water filtering and backwashing.

[0005] 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 in 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.

[0006] Other purposes and features of the present invention are fully reflected in the following detailed description.

[0007] According to one aspect of the present invention, a water purifier of the present invention capable of achieving the aforementioned objectives and other objectives and advantages includes:

[0008] 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

[0009] A filtering device, wherein the filtering device has a first communication opening and a second communication opening, wherein 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 adapted to be communicated with a raw water source.

[0010] Through the understanding of the subsequent description and the drawings, the further objects and advantages of the present utility model will be fully embodied.

[0011] These and other objects, features and advantages of the present utility model are fully embodied by the following detailed description and the drawings. Description of the Drawings

[0012] Figure 1 is the front view of the water purifier according to the embodiment of the present utility model described above.

[0013] Figure 2 is the assembly drawing of the water purifier according to the embodiment of the present utility model described above.

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

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

[0016] Figure 4 is another cross-sectional view of the water purifier according to the embodiment of the present utility model described above, wherein the water purifier of the present utility model shown in the figure is in the bypass working state, and the direction of the water flow in the raw water supply channel and the pressure relief channel in this working state is indicated by the dotted arrow in the figure.

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

[0018] Figure 5B is another cross-sectional view of the water purifier according to the embodiment of the present utility model described above, wherein the water purifier of the present utility model shown in the figure is in the backwashing working state, and the direction of the water flow in this working state is indicated by the dotted arrow in the figure.

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

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

[0021] Figure 7B It is a bottom-up cross-sectional view of the water purifier according to the embodiment of the present utility model.

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

[0023] Figure 7D It 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 embodiment of the present utility model, wherein the movable valve plate is arranged in the valve cavity of the flat valve.

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

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

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

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

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

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

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

[0031] Figure 8E It is a perspective view of the movable valve plate of the flat valve of the water purifier according to the embodiment of the present utility model.

[0032] Figure 8F It is another perspective view of the movable valve plate of the flat valve of the water purifier according to the embodiment of the present utility model.

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

[0034] Figure 9B It is a schematic structural view of the movable valve plate of the flat valve of the water purifier according to the above embodiment of the present utility model, wherein the dotted line in the figure indicates the conduction blind hole of the movable valve plate.

[0035] Figure 10A It is an equal division schematic view of the fixed valve plate of the flat valve of the water purifier according to the above embodiment of the present utility model, wherein the figure shows the specific equal division positions where each channel is arranged on the fixed valve plate.

[0036] Figure 10B It is an equal division schematic view of the movable valve plate of the flat valve of the water purifier according to the above embodiment of the present utility model, wherein the figure shows the specific equal division positions where each channel is arranged on the movable valve plate.

[0037] Figure 11A It is a schematic view of the connection between the channels of the movable valve plate and the channels of the fixed valve plate of the flat valve of the water purifier when the flat valve is in its water treatment working position according to the above embodiment of the present utility model, wherein the shaded part in the figure indicates the channels where the movable valve plate and the fixed valve plate of the flat valve are interconnected.

[0038] Figure 11B It is a schematic view of the connection between the channels of the movable valve plate and the channels of the fixed valve plate of the flat valve of the water purifier when the flat valve is in its bypass working position according to the above embodiment of the present utility model, wherein the shaded part in the figure indicates the channels where the movable valve plate and the fixed valve plate of the flat valve are interconnected.

[0039] Figure 11C It is a schematic view of the connection between the channels of the movable valve plate and the channels of the fixed valve plate of the flat valve of the water purifier when the flat valve is in its backwashing working position according to the above embodiment of the present utility model, wherein the shaded part in the figure indicates the channels where the movable valve plate and the fixed valve plate of the flat valve are interconnected.

[0040] Figure 11D It is a schematic view of the connection between the channels of the movable valve plate and the channels of the fixed valve plate of the flat valve of the water purifier when the flat valve is in its standby working position according to the above embodiment of the present utility model, wherein the shaded part in the figure indicates the channels where the movable valve plate and the fixed valve plate of the flat valve are interconnected. Detailed implementation mode

[0041] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present utility model defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart 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 orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present utility model.

[0043] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as limiting the quantity.

[0044] Referring to the accompanying drawings of the specification Figures 1 to 6 , the water purifier according to the embodiment of the present utility model is illustrated, wherein the water purifier of the present utility model includes a control valve 10 and a filtering device 20. 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 controlling the supply of raw water (or tap water) to the filtering device 20, and controlling the supply of the purified water generated or produced by the filtering device 20 after treating (filtering) the raw water. It can be understood that the control valve 10 of the water purifier of the present utility model 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 supplies it to the filtering device 20.

[0045] As shown in the drawings Figures 1 to 6As shown, the filtration device 20 of the water purifier according to an embodiment of the present invention includes a housing 21 and a filter element 22. The housing 21 forms a first accommodation cavity 210, and the filter element 22 is disposed in the first accommodation cavity 210 of the housing 21. A raw water channel 2101 is formed between the housing 21 and the filter element 22, and the filter element 22 forms a purified water channel 2201. The first communication opening 201 of the filtration device 20 is in communication with the raw water channel 2101, and the second communication opening 202 is in communication with the purified water channel 2201. Accordingly, when raw water flows into the raw water channel 2101 from the first communication opening 201 under the action of water pressure and is treated by the filter element 22 under the action of water pressure, and the generated purified water flows out of the purified water channel 2201 of the filter element 22, the water purifier of the present invention is in a filtration (purification or water treatment) state; when raw water flows into the purified water channel 2201 from the second communication opening 202 under the action of water pressure and flows to the raw water channel 2101 under the action of water pressure and is discharged, the water purifier of the present invention is in a reverse (flow) flushing state. It can be understood that the reverse flushing herein refers to that when flushing the filter element 22, the flow direction of the raw water flowing through the filter element 22 is opposite to the flow direction of the raw water flowing 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 the outside) of the filter element 22, and the purified water channel 2201 is formed on a relative side (or the 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 or an ultrafiltration filter element or other similar filter elements. It can be 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.

[0046] As shown in the attached drawings Figures 1 to 7G As shown, 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. The valve body 11 forms a valve cavity 110, a first opening 1101, a second opening 1102, a third opening 1103, a sewage discharge opening 1104 and a water inlet 1105. The valve core 12 is disposed 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 filtration device 20, the second opening 1102 of the valve body 11 is in communication with the second communication opening 202 of the filtration device 20, and the water inlet 1105 of the valve body 11 is adapted to be connected to a raw water source (for example, a water pipe).

[0047] As shown in the attached drawings Figure 3A 、 Figure 3B andFigures 7A to 7G As shown, the control valve 10 of the water purifier according to the embodiment of the present invention has a water treatment working position. 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. The first water treatment flow channel 10011 is respectively communicated with the water inlet 1105 and the first opening 1101 of the valve body 11, and the second water treatment flow channel 10012 is respectively communicated with the second opening 1102 and the third opening 1103. Correspondingly, when the control valve 10 is in the water treatment working position, raw water flows in under the action of water pressure from the water inlet 1105 of the valve body 11 of the control valve 10, flows through the first water treatment flow channel 10011 to the first opening 1101 of the valve body 11, and further flows into the filtration device 20 from the first communication opening 201 of the filtration device 20 under the action of water pressure. The purified water after being treated by the filtration device 20 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 the embodiment of the present invention is the water outlet. 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 water treatment working position, the water purifier of the present invention is controlled to be in its water treatment working state.

[0048] As shown in the accompanying drawings Figure 4 and Figures 7A to 7GAs shown, the control valve 10 of the water purifier according to the embodiment of the present utility model has a bypass working position. 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. The raw water supply channel 10021 is respectively communicated with the water inlet 1105 and the third opening 1103 of the valve body 11, and the pressure relief channel 10022 is respectively communicated with the second opening 1102 and the sewage discharge opening 1104 of the valve body 11. Correspondingly, when the control valve 10 is in the bypass working position, under the action of water pressure, raw water flows in 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 to supply raw water, and the water pressure in the filtering device 20 is discharged 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 utility model is controlled to be in the bypass working position, the water purifier of the present utility model is controlled to be in its bypass working state. It can be understood that after the water pressure in the filtering device 20 of the water purifier according to the embodiment of the present utility model is discharged through the second communication opening 202, the second opening 1102, the pressure relief channel 10022 and the sewage discharge opening 1104, the user can easily disassemble the filtering device 20 (or its housing 21) and replace the filter element 22, and when disassembling the filtering device 20, it does not affect the supply of raw water through the third opening 1103 of the control valve 10.

[0049] As shown in the accompanying drawings Figure 5A , Figure 5B and Figures 7A to 7GAs shown, the control valve 10 of the water purifier according to the embodiment of the present utility model further has a backwashing working position. 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. The first backwashing flow channel 10031 is respectively communicated with the water inlet 1105 and the second opening 1102 of the valve body 11, and the second backwashing flow channel 10032 is respectively communicated with the first opening 1101 and the sewage discharge opening 1104 of the valve body 11. Correspondingly, when the control valve 10 is in the backwashing working position, under the action of water pressure, raw water flows in from the water inlet 1105 of the valve body 11 of the control valve 10, flows through the first backwashing flow channel 10031 to the second opening 1102 of the valve body 11, further flows into the filtering device 20 from the second communication opening 202 of the filtering device 20, and under the action of water pressure, backwashes the filter element 22 of the filtering device 20. The generated sewage flows out from the first communication opening 201 of the filtering device 20, and then, under the action of water pressure, passes through the first opening 1101 of the valve body 11 of the control valve 10, the second backwashing flow channel 10032 and the sewage discharge opening 1104 and is discharged. When the control valve 10 of the water purifier according to the embodiment of the present utility model is controlled to be in the backwashing working position, the water purifier of the present utility model is controlled to be in its backwashing working state.

[0050] As shown in the attached drawing Figures 6 to 7G As shown, the control valve 10 of the water purifier according to the embodiment of the present utility model further has a standby working position. 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 discharge opening 1104 of the valve body 11.

[0051] As shown in the attached drawing Figures 7A to 10B As shown, the control valve 10 of the water purifier according to the embodiment of the present utility model is a flat valve. The valve core 12 of the flat valve 10 further includes a fixed valve plate 121 and a movable valve plate 122. The fixed valve plate 121 has a first fluid control surface 1210, and the movable valve plate 122 has a second fluid control surface 1220. The movable valve plate 122 and the fixed valve plate 121 are both arranged in the valve cavity 110. The second fluid control surface 1220 of the movable valve plate 122 is arranged on the first fluid control surface 1210 of the fixed valve plate 121, and the movable valve plate 122 is arranged to be able to rotate relative to the fixed valve plate 121. Preferably, the water inlet 1105 is communicated with the valve cavity 110 of the valve body 11.

[0052] As shown in the attached drawing Figures 7A to 10BAs shown in the figure, the flat valve 10 of the water purifier according to the embodiment of the present utility model 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. Among them, the first channel 101, the second channel 102, the third channel 103 and the fourth channel 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 channel 105 and the sixth channel 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. Among them, the first channel 101 is communicated with the first opening 1101, the second channel 102 is communicated with the second opening 1102, the third channel 103 is communicated with the third opening 1103, the fourth channel 104 is communicated with the sewage discharge opening 1104, and the fifth channel 105 is communicated with the water inlet 1105. Preferably, the sixth channel 106 is a conducting blind hole. Preferably, the fifth channel 105 is communicated with the water inlet 1105 through the valve cavity 110.

[0053] As shown in the attached drawing Figures 7A to 10B As shown in the figure, the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10 of the water purifier according to the embodiment of the present utility model forms a central part 12101 and an edge part 12102 extending outward from the central part 12101. The first channel 101, the fourth channel 104, the second channel 102 and the third channel 103 of the flat valve 10 are arranged in the edge part 12102 of the first fluid control surface 1210 of the fixed valve plate 121 in this clockwise order. The fifth channel 105 and the sixth channel 106 of the flat 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 flat valve 10 are arranged in the edge part 12102 of the first fluid control surface 1210 of the fixed valve plate 121 in this counterclockwise order. Preferably, the first channel 101, the fourth channel 104, the second channel 102 and the third channel 103 of the flat valve 10 are spaced apart and arranged on the first fluid control surface 1210 of the fixed valve plate 121; the fifth channel 105 and the sixth channel 106 of the flat valve 10 are spaced apart and arranged on the second fluid control surface 1220 of the movable valve plate 122.

[0054] As shown in the attached drawing Figure 3A 、 Figure 3B and Figure 11AAs shown, the movable valve plate 122 of the flat valve 10 of the water purifier according to the embodiment of the present utility model can rotate relative to the fixed valve plate 121, so that the flat valve 10 has a water treatment working position. When the flat valve 10 is in the water treatment working position, the fifth channel 105 of the flat valve 10 is communicated with the first channel 101, so as to form the first water treatment flow channel 10011 that is respectively communicated with the water inlet 1105 and the first opening 1101. The sixth channel 106 is respectively communicated with the second channel 102 and the third channel 103, so as to form the second water treatment flow channel 10012 that is respectively communicated with the second opening 1102 and the third opening 1103. As shown in the attached drawings Figure 3A 、 Figure 3B and Figure 11A As shown, when the flat 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. Correspondingly, when the flat valve 10 is in the water treatment working position, under the action of water pressure, raw water flows in from the water inlet 1105 of the valve body 11 of the flat valve 10, 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 filtering device 20 from the first communication opening 201. The purified water treated by the filtering device 20 flows out from the second communication opening 202 under the action of water pressure and further flows into the second opening 1102, 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 drawings Figure 4 and Figure 11B As shown, the movable valve plate 122 of the flat valve 10 of the water purifier according to the embodiment of the present utility model can rotate relative to the fixed valve plate 121, so that the flat valve 10 further has a bypass working position. When the flat valve 10 is in the bypass working position, the fifth channel 105 of the flat valve 10 is communicated with the third channel 103, so as to form the raw water supply flow channel 10021 that is respectively communicated with the water inlet 1105 and the third opening 1103. Further, when the flat valve 10 is in the bypass working position, the sixth channel 106 of the flat valve 10 is respectively communicated with the second channel 102 and the fourth channel 104, so as to form the pressure relief flow channel 10022 that is respectively communicated with the second opening 1102 and the sewage discharge opening 1104. As shown in the attached drawings 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 piece 122. Correspondingly, when the flat valve 10 is in the bypass working position, raw water flows in under the action of water pressure from the water inlet 1105 of the valve body 11 of the flat valve 10, and flows through the fifth channel 105 and the third channel 103 to the third opening 1103 and is supplied. Further, when the flat valve 10 is in the bypass working position, the water pressure in the filtering 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 sewage discharge opening 1104. It can be 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 can be understood that after the water pressure in the filtering device 20 of the water purifier according to the embodiment of the present invention is discharged through the pressure relief flow channel 10022, the user can easily disassemble the filtering device 20 (or its housing 21) and replace the filter element 22, and when disassembling the filtering device 20, it does not affect the supply of raw water through the third opening 1103 of the flat valve 10.

[0056] As shown in the attached drawings Figure 5A , Figure 5B and Figure 11C shown, the moving valve piece 122 of the flat valve 10 of the water purifier according to the embodiment of the present invention can rotate relative to the fixed valve piece 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 communicated with the second channel 102, so as to form a first backwashing flow channel 10031 that is respectively communicated with the water inlet 1105 and the second opening 1102. The sixth channel 106 is respectively communicated with the first channel 101 and the fourth channel 104, so as to form a second backwashing flow channel 10032 that is respectively communicated with the first opening 1101 and the sewage discharge opening 1104. As shown in the attached drawings Figure 5A , Figure 5B and Figure 11CAs shown, when the flat valve 10 is in the backwashing working position, the third channel 103 is blocked by the second fluid control surface 1220 of the movable valve piece 122. Correspondingly, 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 the action of water pressure, flows through the fifth channel 105 into the second channel 102 and flows towards the second opening 1102 of the valve body 11, and further flows into the filtering device 20 from the second communication opening 202. The sewage after the reverse flushing of the filter element 22 of the filtering device 20 flows out from the first communication opening 201, and then 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.

[0057] As shown in the accompanying drawings Figure 4 and Figure 11D shown, the movable valve piece 122 of the flat valve 10 of the water purifier according to the embodiment of the present invention can rotate relative to the fixed valve piece 121, so that the flat valve 10 further has a standby working position. When the flat valve 10 is in the standby working position, the second channel 102 and the fourth channel 104 of the flat valve 10 are respectively blocked by the second fluid control surface 1220 of the movable valve piece 122, and the fifth channel 105 is blocked by the first fluid control surface 1210 of the fixed valve piece 121. Although the sixth channel 106 is respectively communicated with the first channel 101 and the third channel 103, the channels formed by the sixth channel 106, the first channel 101 and the third channel 103 are not communicated with the water source, and no water flows through. Correspondingly, when the flat valve 10 is in the standby working position, no water flows through the first opening 1101, the second opening 1102, the third opening 1103 and the sewage discharge opening 1104.

[0058] As shown in the accompanying drawings Figures 8A to 11DAs shown, the first fluid control surface 1210 of the fixed valve plate 121 of the flat valve 10 of the water purifier according to the embodiment of the present utility model has a central portion 12101 and an edge portion 12102 shown by the dotted line in the figure. The central portion 12101 and the edge portion 12102 are provided at the top end portion 1214 of the fixed valve plate 121. The edge portion 12102 (or the portion other than the central 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 dotted line. The second fluid control surface 1220 of the movable valve plate 122 of the flat valve 10 has a central region 12201 and an edge region 12202 extending outward from the central region 12201 shown by the dotted line in the figure. The central region 12201 and the edge region 12202 are provided at the bottom end portion 1221 of the movable valve plate 122. The edge region 12202 (the portion other than the central region 12201) of the second fluid control surface 1220 is equally divided into a first region 2001, a second region 2002, a third region 2003, and a fourth region 2004 shown by the dotted line. The first channel 101 extends downward from the first portion 1201 of the first fluid control surface 1210 of the fixed valve plate 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 plate 121. The second channel 102 extends downward from the third portion 1203 of the first fluid control surface 1210 of the fixed valve plate 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 plate 121. The fifth channel 105 extends upward from the first region 2001 of the second fluid control surface 1220 of the movable valve plate 122. The sixth channel 106 extends upward from the third region 2003 and the fourth region 2004 of the second fluid control surface 1220 of the movable valve plate 122.Therefore, the arrangement of the first channel 101, the fourth channel 104, the second channel 102, and the third channel 103 of the flat valve 10 of the water purifier according to the embodiment of the present invention on the first fluid control surface 1210 and the arrangement of the fifth channel 105 and the sixth channel 106 of the flat valve 10 on the second fluid control surface 1220 of the movable valve piece 122 determine that when the first channel 101 of the flat valve 10 of the water purifier according to the embodiment of the present invention is distributed at one equal division position on the first fluid control surface 1210, the second channel 102 of the flat valve 10 is distributed at one equal division position on the first fluid control surface 1210, the third channel 103 of the flat valve 10 is respectively distributed at one equal division position on the first fluid control surface 1210, and the fourth channel 104 of the flat valve 10 is distributed at one equal division position on the second fluid control surface 1220. Correspondingly, 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 flat valve 10 of the water purifier according to the embodiment of the present invention enables it to have four different working positions, and each time the user drives the movable valve piece 122 of the flat valve 10 to rotate 90 degrees relative to the fixed valve piece 121, the switching between adjacent two working positions can be achieved. In other words, each time the movable valve piece 122 of the flat valve 10 of the water purifier of the present invention rotates 90 degrees relative to the fixed valve piece 121, the switching between adjacent two working positions can be achieved. More specifically, the first channel 101 has a first conduction opening 1011 formed on the first fluid control surface 1210 of the fixed valve piece 121, the second channel 102 has a second conduction opening 1021 formed on the first fluid control surface 1210 of the fixed valve piece 121, the third channel 103 has a third conduction opening 1031 formed on the first fluid control surface 1210 of the fixed valve piece 121, the fourth channel 104 has a fourth conduction opening 1041 formed on the first fluid control surface 1210 of the fixed valve piece 121, and the first conduction opening 1011, the fourth conduction opening 1041, the second conduction opening 1021, and the third conduction opening 1031 are respectively formed on the first part 1201 (or the first equal division position), the second part 1202 (or the second equal division position), the third part 1203 (or the third equal division position), and the fourth part 1204 (or the fourth equal division position) of the first fluid control surface 1210 of the fixed valve piece 121.

[0059] As shown in the attached drawings Figures 8A to 11DAs shown, a transverse protrusion 122011 is further formed on the second fluid control surface 1220 of the movable valve plate 122 of the flat valve 10 of the water purifier according to the embodiment of the present utility model. The fourth conduction 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). The transverse protrusion 122011 on 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, so that the fifth conduction opening 1051 of the fifth channel 105 of the flat valve 10 has a knife handle-shaped structure. Optionally, the fourth conduction 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). The transverse protrusion 122011 on 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 conduction opening 1051 of the fifth channel 105 of the flat valve 10 has a knife handle-shaped structure. It can be understood that the transverse protrusion 122011 on the second fluid control surface 1220 of the movable valve plate 122 of the flat valve 10 of the water purifier of the present utility model and the fourth conduction opening 1041 of the fourth channel 104 are arranged so that the transverse protrusion 122011 can close the fourth conduction opening 104 of the fourth channel 104 when the flat valve 10 is in the standby working position, thereby helping the flat valve 10 of the water purifier of the present utility model to have 4 working positions with adjacent rotation angles of 90 degrees each and controlling the water purifier of the present utility model to achieve 4 different functions.

[0060] It should be noted that the first, second, third, fourth, fifth, and / or sixth in this article are only used for naming different components (or elements) of the present utility model and to distinguish different components, elements, and structures of the present utility model, and they do not have the meaning of order or quantity by themselves.

[0061] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the drawings are only examples and do not limit the present utility model. The object of the present utility model has been completely and effectively achieved. The functions and structural principles of the present utility model have been shown and described in the embodiments. Without departing from the said principles, the embodiments of the present utility model can have any deformation or modification.

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 arranged 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 being connected to a raw water source, wherein when the control valve is in a 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; when the control valve is in a bypass working position, the valve core of the control valve forms a raw water supply flow channel and a pressure relief flow channel, wherein the raw water supply flow channel is respectively connected to the water inlet and the third opening of the valve body, and the pressure relief flow channel is respectively connected to the second opening and the sewage discharge opening of the valve body.

2. The water purifier according to claim 1, 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.

3. The water purifier according to claim 1, 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.

4. The water purifier according to claim 1, characterized in that: The control valve is a plane valve, wherein the valve core of the plane 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 able to rotate relative to the fixed valve disc, wherein the plane 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 arranged on the movable valve plate and respectively extend from the second fluid control surface of the movable valve plate, wherein the first channel is connected to the first opening, the second channel is connected to the second opening, the third channel is connected to the third opening, the fourth channel is connected to the sewage opening, and the fifth channel is connected to the water inlet, wherein when the movable valve plate of the plane valve rotates relative to the fixed valve plate so that the plane valve is in the water treatment working position, the fifth channel of the plane 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.

5. The water purifier according to claim 4, 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 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 to 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.

6. The water purifier according to claim 5, 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 bypass working position, the fifth channel of the planar valve is connected with the third channel, thereby forming the raw water supply channel connected with the water inlet and the third opening respectively.

7. The water purifier according to claim 6, characterized in that: When the plane valve is in the bypass working position, the sixth channel of the plane valve is connected with the second channel and the fourth channel respectively, so as to form the pressure relief channel connected with the second opening and the sewage discharge opening respectively.

8. The water purifier according to claim 6, 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.

9. The water purifier according to claim 8, characterized in that: The edge portion of the first fluid control surface of the fixed valve plate is equally 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 equally 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.

10. The water purifier according to claim 9, 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.

11. The water purifier according to claim 10, characterized in that: The fourth conducting opening of the fourth channel is arranged adjacent to the third part 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.

12. The water purifier according to claim 10, characterized in that: The fourth conducting opening of the fourth channel is arranged adjacent to the first part 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.

13. The water purifier according to claim 10, 11 or 12, characterized in that: The first conducting opening of the first channel is formed at the first part of the first fluid control surface of the fixed valve plate; the fourth conducting opening of the fourth channel is formed at the second part of the first fluid control surface of the fixed valve plate; the second conducting opening of the second channel is formed at the third part of the first fluid control surface of the fixed valve plate; the third conducting opening of the third channel is formed at the fourth part of the first fluid control surface of the fixed valve plate.

14. The water purifier according to claim 4, 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.

15. The water purifier according to claim 5, 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.

16. The water purifier according to claim 6, 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.

17. The water purifier according to any one of claims 1-12, 14-16, 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 connecting opening of the filter device is connected to the raw water channel, and the second connecting opening is connected to the clean water channel.

18. The water purifier according to claim 9, 10, 11 or 12, 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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