Cover plate assembly and water purifier

Abstract

The utility model relates to a cover plate assembly and a water purifier. The cover plate assembly comprises a first cover plate and a second cover plate, and the first cover plate and the second cover plate are glued. The first cover plate is provided with a first surface and a second surface which are arranged back to back, the first surface is provided with a plurality of water purification devices, and the plurality of water purification devices are communicated through a diversion trench structure; the second cover plate is provided with a third surface facing the second surface, the third surface is provided with a flow guide piece, and the flow guide piece is matched with the flow guide groove structure to form a flow guide channel. The cover plate assembly can reduce the volume of the water purifier.

Description

Technical Field

[0001] The utility model relates to the field of water purifiers, and particularly to a cover plate assembly and a water purifier. Background Art

[0002] The water purification devices in the related art are all set for multi-stage filtration, and municipal water is filtered through multiple filter elements. However, the filter elements need to be connected through a water circuit board, which usually includes a board body, an upper cover, and a filter element seat, and each part is connected by the ways of secondary plastic encapsulation and secondary injection molding. This makes the size of the water circuit board larger, not only making the volume of the water purifier larger, but also the water circuit board is prone to leakage. Content of the Utility Model

[0003] In view of this, the utility model provides a cover plate assembly and a water purifier. The cover plate assembly can reduce the volume of the water purifier.

[0004] The utility model provides the following technical solutions:

[0005] A cover plate assembly, which includes a first cover plate and a second cover plate, and the first cover plate is glued to the second cover plate;

[0006] The first cover plate has a first surface and a second surface arranged opposite to each other. A plurality of water purification devices are arranged on the first surface, and the plurality of water purification devices are communicated through a diversion groove structure;

[0007] The second cover plate has a third surface facing the second surface, and a diversion member is arranged on the third surface. The diversion member and the diversion groove structure cooperate to form a diversion channel.

[0008] Further, the plurality of water purification devices include a RO filter element, a composite filter element, a booster pump, and an inlet valve;

[0009] The first surface is further provided with a first mounting portion, a second mounting portion, and a third mounting portion. The composite filter element is arranged in the first mounting portion, the RO filter element is arranged in the second mounting portion, and the booster pump and the inlet valve are arranged in the third mounting portion.

[0010] Further, the first mounting portion is provided with a first base, and the composite filter element is arranged on the first base;

[0011] The first base includes: a first filter element interface, a second filter element interface, a third filter element interface, and a fourth filter element interface;

[0012] The first filter element interface, the second filter element interface, the third filter element interface, and the fourth filter element interface are all communicated with the composite filter element.

[0013] Further, a second base is provided on the second mounting portion, and the RO filter element is disposed on the second base;

[0014] The second base includes: a fifth filter element interface, a sixth filter element interface, and a seventh filter element interface;

[0015] The fifth filter element interface, the sixth filter element interface, and the seventh filter element interface are all in communication with the RO filter element.

[0016] Further, a first booster pump interface, a second booster pump interface, a third booster pump interface, and a connection port are provided on the third mounting portion;

[0017] The connection port and the first booster pump interface are both in communication with the water inlet valve, and the second booster pump interface and the third booster pump interface are both connected to the booster pump.

[0018] Further, the flow guiding groove structure includes: a first flow guiding groove, a second flow guiding groove, a third flow guiding groove, and a fourth flow guiding groove;

[0019] Wherein, the first flow guiding groove is used to communicate the fourth filter element interface and the connection port, the second flow guiding groove is used to communicate the third booster pump interface and the seventh filter element interface, and the third flow guiding groove is used to communicate the third filter element interface and the sixth filter element interface.

[0020] Further, the first cover plate has a water inlet, a pure water outlet, and a wastewater outlet;

[0021] The water inlet is in communication with the fourth filter element interface, the pure water outlet is in communication with the third filter element interface, and the wastewater outlet is in communication with the fifth filter element interface through the fourth flow guiding groove.

[0022] Further, the first flow guiding groove, the second flow guiding groove, the third flow guiding groove, and the fourth flow guiding groove all protrude from the second surface.

[0023] Further, the first base and the second base both have a limiting portion, and the limiting portions all protrude from the first surface.

[0024] The present utility model further provides a water purifier, which includes: a housing,

[0025] and the cover plate assembly as described above;

[0026] One side of the housing has an opening, and the cover plate assembly is disposed in the opening.

[0027] The above cover plate assembly includes a first cover plate and a second cover plate. The first cover plate and the second cover plate are connected together by means such as gluing or laser welding. The first cover plate has a first surface and a second surface. A water purification device is arranged on the first surface, and a flow guide groove structure is arranged on the second surface. Correspondingly, a plurality of flow guide members are arranged on the third surface of the second cover plate facing the second surface. By the cooperation of the flow guide members and the flow guide groove structure, a flow guide channel can be formed. The water purification device arranged on the first surface is communicated through the flow guide channel, so that water can flow in the water purification device. The water purification device is directly installed on the first cover plate, and the water circuit board is connected by gluing the first cover plate and the second cover plate, so as to achieve the purpose of reducing the volume of the water purifier. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the implementation manners will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 One of the structural schematic diagrams of the cover plate assembly provided by the embodiment of the present invention;

[0030] Figure 2 Two of the structural schematic diagrams of the cover plate assembly provided by the embodiment of the present invention;

[0031] Figure 3 The structural schematic diagram of the first cover plate provided by the embodiment of the present invention;

[0032] Figure 4 The structural schematic diagram of the second cover plate provided by the embodiment of the present invention;

[0033] Figure 5 The structural schematic diagram of the first base provided by the embodiment of the present invention;

[0034] Figure 6 The structural schematic diagram of the second base provided by the embodiment of the present invention;

[0035] Figure 7 The structural schematic diagram of each interface on the second installation part provided by the embodiment of the present invention;

[0036] Figure 8 The structural schematic diagram of the water purifier provided by the embodiment of the present invention.

[0037] Description of the reference numerals:

[0038] 100 - Cover plate assembly; 10 - First cover plate; 11 - First surface; 111 - First mounting portion; 112 - Second mounting portion; 113 - Third mounting portion; 114 - Water inlet; 115 - Pure water outlet; 116 - Waste water outlet; 12 - Second surface; 13 - First base; 131 - First filter element interface; 132 - Second filter element interface; 133 - Third filter element interface; 134 - Fourth filter element interface; 14 - Second base; 141 - Fifth filter element interface; 142 - Sixth filter element interface; 143 - Seventh filter element interface; 144 - First booster pump interface; 145 - Second booster pump interface; 146 - Third booster pump interface; 147 - Connection port; 20 - Second cover plate; 21 - Third surface; 30 - Water purification device; 31 - RO filter element; 32 - Composite filter element; 33 - Booster pump; 34 - Water inlet valve; 40 - Flow guide groove structure; 41 - First flow guide groove; 42 - Second flow guide groove; 43 - Third flow guide groove; 44 - Fourth flow guide groove; 50 - Flow guide member; 60 - Limiting portion; 200 - Water purifier; 210 - Housing; 220 - Opening. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0041] Referring to "embodiment" or "implementation manner" herein means that a specific feature, structure or characteristic described in connection with the embodiment or implementation manner may be included in at least one embodiment of the present invention. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] The water purification devices in the related art are all set for multi-stage filtration, and municipal water is filtered through multiple filter elements. However, the filter elements need to be connected through a water circuit board, which usually includes a board body, an upper cover, and a filter element seat. Each part is connected by secondary encapsulation and secondary injection molding, which makes the size of the water circuit board larger. This not only makes the volume of the water purifier larger, but also the water circuit board is prone to leakage.

[0043] In view of this, the present embodiment provides a cover plate assembly 100 and a water purifier 200. The cover plate assembly 100 can reduce the volume of the water purifier 200.

[0044] Please refer to Figure 1 , a cover plate assembly 100, the cover plate assembly 100 includes a first cover plate 10 and a second cover plate 20, and the first cover plate 10 is glued to the second cover plate 20;

[0045] The first cover plate 10 has a first surface 11 and a second surface 12 arranged opposite to each other. A plurality of water purification devices 30 are arranged on the first surface 11, and the plurality of water purification devices 30 are connected through a diversion groove structure 40;

[0046] The second cover plate 20 has a third surface 21 facing the second surface 12, and a diversion member 50 is arranged on the third surface 21. The diversion member 50 cooperates with the diversion groove structure 40 to form a diversion channel.

[0047] The above-mentioned cover plate assembly 100 includes a first cover plate 10 and a second cover plate 20. The first cover plate 10 and the second cover plate 20 are connected together by gluing or laser welding. The first cover plate 10 has a first surface 11 and a second surface 12. By arranging water purification devices 30 on the first surface 11 and a diversion groove structure 40 on the second surface 12, and correspondingly arranging a plurality of diversion members 50 on the third surface 21 of the second cover plate 20 facing the second surface 12, through the cooperation of the diversion members 50 and the diversion groove structure 40, a diversion channel can be formed. By connecting the water purification devices 30 arranged on the first surface 11 through the diversion channel, the water can flow in the water purification devices 30. The water purification devices 30 are directly installed on the first cover plate 10, and the water circuit board is connected by gluing the first cover plate 10 and the second cover plate 20, so as to achieve the purpose of reducing the volume of the water purifier 200.

[0048] Please refer to Figure 2 , in some embodiments, the plurality of water purification devices 30 include an RO filter element 31, a composite filter element 32, a booster pump, and an inlet valve 34;

[0049] The first surface 11 is further provided with a first mounting portion 111, a second mounting portion 112, and a third mounting portion 113. The composite filter element 32 is disposed on the first mounting portion 111, the RO filter element 31 is disposed on the second mounting portion 112, and the booster pump and the water inlet valve 34 are disposed on the third mounting portion 113.

[0050] It can be understood that the water purification device 30 includes: an RO filter element 31, a composite filter element 32, a booster pump 33, and a water inlet valve 34. The first surface 11 is divided into a first mounting portion 111, a second mounting portion 112, and a third mounting portion 113. Among them, the composite filter element 32 is disposed on the first mounting portion 111, the RO filter element 31 is disposed on the second mounting portion 112, and the booster pump 33 and the water inlet valve 34 are disposed on the third mounting portion 113. In this way, the RO filter element 31, the composite filter element 32, the booster pump 33, and the water inlet valve 34 can all be directly disposed on the first surface 11, facilitating the installation and maintenance of the above-mentioned various devices and improving the water purification efficiency.

[0051] Please refer to Figures 3 to 5 , in some embodiments, the first mounting portion 111 is provided with a first base 13, and the composite filter element 32 is disposed on the first base 13;

[0052] The first base 13 includes: a first filter element interface 131, a second filter element interface 132, a third filter element interface 133, and a fourth filter element interface 134;

[0053] The first filter element interface 131, the second filter element interface 132, the third filter element interface 133, and the fourth filter element interface 134 are all in communication with the composite filter element 32.

[0054] It can be understood that by providing the first base 13 on the first mounting portion 111, the first base 13 can play a positioning role for the water purification device 30 mounted on the cover plate assembly 100, and can also facilitate the direct installation of the water purification device 30 onto the first base 13, enabling the water purification device 30 to directly contact the first base 13 and the second base 14. In this way, it is possible to facilitate the installation or disassembly of the water purification device 30 in the water purifier 200.

[0055] It can be understood that the first filter element interface 131, the second filter element interface 132, the third filter element interface 133, and the fourth filter element interface 134 are further provided on the first base 13. Among them, the composite filter element 32 includes a first water inlet of the composite filter element, a drain port of the composite filter element, a second water inlet of the composite filter element, and a water outlet of the composite filter element.

[0056] After the composite filter element 32 is installed on the first base 13, the first water inlet of the composite filter element is installed on the first filter element interface 131, the water inlet of the composite filter element is installed on the fourth filter element interface 134, the second water inlet of the composite filter element is installed on the second filter element interface 132, and the water outlet of the composite filter element is installed on the water outlet of the composite filter element. In this way, the cooperation between the filter element and the first base 13 can be realized, and the first base 13 is communicated with the composite filter element 32.

[0057] It can be understood that the composite filter element 32 is provided with a PP membrane and an activated carbon layer. Among them, the PP membrane is used to filter large particulate matter in the water flow, and the activated carbon is used to remove odors. The water flow will enter the RO filter element 31 for filtration after passing through the PP membrane filtration, and then enter the activated carbon layer for filtration to remove odors.

[0058] Please refer to Figure 3 、 Figure 4 and Figure 6 In some embodiments, a second base 14 is provided on the second mounting portion 112, and the RO filter element 31 is disposed on the second base 14;

[0059] The second base 14 includes: a fifth filter element interface 141, a sixth filter element interface 142, and a seventh filter element interface 143;

[0060] The fifth filter element interface 141, the sixth filter element interface 142, and the seventh filter element interface 143 are all communicated with the RO filter element 31.

[0061] It can be understood that by providing the second base 14 on the second mounting portion 112, the second base 14 can play a positioning role for the water purification device 30 installed on the first cover plate 10, and can also facilitate the direct installation of the water purification device 30 onto the second base 14, so that the water purification device 30 is in direct contact with the second base 14. In this way, it is convenient to install or disassemble the water purification device 30 in the water purifier 200. The above-mentioned fifth filter element interface 141, sixth filter element interface 142, and seventh filter element interface 143 are all used to communicate with the RO filter element 31; among them, the RO filter element 31 is provided with a RO filter element water inlet, a RO filter element water outlet, and a RO filter element wastewater outlet. When the RO filter element 31 is installed on the second base 14, the RO filter element water inlet is communicated with the seventh filter element interface 143, the RO filter element water outlet is communicated with the sixth filter element interface 142, and the RO filter element wastewater outlet is communicated with the seventh filter element interface 143.

[0062] Please refer to Figure 3 、 Figure 4 and Figure 7 In some embodiments, the third mounting portion 113 is provided with a first booster pump interface 144, a second booster pump interface 145, a third booster pump interface 146, and a connection port 147;

[0063] The connecting port 147 and the first boost pump interface 144 are both connected to the water inlet valve 34 , and the second boost pump interface 145 and the third boost pump interface 146 are both connected to the boost pump 33 .

[0064] It can be understood that the first boost pump interface 144, the second boost pump interface 145, the third boost pump interface 146, and the connection port 147 are set on the third mounting portion 113, and the above-mentioned first boost pump interface 144, the second boost pump interface 145, the third boost pump interface 146, and the connection port 147 are all directly set on the first surface 11.

[0065] The connection port 147 and the first boost pump interface 144 are connected to the water inlet valve 34 . The connection port 147 is used to supply water to the water inlet valve 34 , and the first boost pump interface 144 is used to drain water from the water inlet valve 34 .

[0066] The second boost pump interface 145 and the third boost pump interface 146 are connected to the boost pump. The second boost pump interface 145 is used to supply water to the boost pump, and the third boost pump interface 146 is used to discharge water from the boost pump.

[0067] When the water flows through the connecting port 147 and enters the water inlet valve 34, it flows to the first booster pump interface 144, and then flows into the booster pump through the first booster pump interface 144 and the second booster pump interface 145. The booster pump 33 pressurizes the water flow and then discharges it through the third booster pump interface 146 to achieve water pressure boosting.

[0068] See also Figure 1 、 Figure 3 and Figure 4 In some embodiments, the guide groove structure 40 includes: a first guide groove 41, a second guide groove 42, a third guide groove 43, and a fourth guide groove 44;

[0069] Among them, the first guide groove 41 is used to connect the fourth filter element interface 134 and the connecting port 147, the second guide groove 42 is used to connect the third boost pump interface 146 and the seventh filter element interface 143, and the third guide groove 43 is used to connect the third filter element interface 133 and the sixth filter element interface 142.

[0070] It can be understood that the first guide groove 41, the second guide groove 42, the third guide groove 43, and the fourth guide groove 44 are all structures protruding from the second surface 12, which can reduce the space occupied by the above-mentioned multiple guide groove structures 40 on the first cover plate 10. Specifically, the guide groove structure 40 protrudes from the second surface 12, so that the thickness of the first cover plate 10 can be set smaller, thereby reducing the space occupied by the cover plate assembly 100 in the water purifier 200, thereby achieving the purpose of reducing the volume of the water purifier 200.

[0071] It can be understood that the first diversion groove 41 is used to connect the fourth filter element interface 134 and the connection port 147, the second diversion groove 42 is used to connect the third booster pump interface 146 and the seventh filter element interface 143, and the third diversion groove 43 is used to connect the third filter element interface 133 and the sixth filter element interface 142. In this way, the RO filter element 31, the composite filter element 32, the water inlet valve 34, and the booster pump 33 can be interconnected to enable water flow to flow in the cover plate assembly 100.

[0072] Please refer to Figure 4 , in some embodiments, the first cover plate 10 has a water inlet 114, a pure water outlet 115, and a wastewater outlet 116;

[0073] The water inlet 114 is communicated with the fourth filter element interface 134, the pure water outlet 115 is communicated with the third filter element interface 133, and the wastewater outlet 116 is communicated with the fifth filter element interface 141 through the fourth diversion groove 44.

[0074] It can be understood that the cover plate has a water inlet 114, a pure water outlet 115, and a wastewater outlet 116. The water inlet 114, the pure water outlet 115, and the wastewater outlet 116 are arranged on the part of the cover plate close to the first base 13, which is to facilitate the intake of water by the composite filter element 32 and the discharge of water after secondary purification, so as to reduce the length of the water circuit in the first cover plate 10.

[0075] It can be understood that the water inlet 114 is used to supply municipal water to the water purifier 200, the pure water outlet 115 is used to discharge pure water, and the wastewater outlet 116 is used to discharge the wastewater generated in the RO filter element 31; specifically, the water inlet 114 is communicated with the first filter element interface 131, so that when water flows into the first cover plate 10, it can directly flow into the composite filter element 32. The pure water outlet 115 is communicated with the second filter element interface 132, and the water discharged from the pure water outlet 115 is the pure water discharged after being filtered by activated carbon. The wastewater outlet 116 is communicated with the fifth filter element interface 141 through the fourth diversion groove 44, so that the wastewater generated in the RO filter element 31 is discharged to the wastewater outlet 116 through the fourth diversion groove 44 to discharge the wastewater in the RO filter element 31.

[0076] The water flow direction in the above cover plate is as follows: water flows into the cover plate assembly 100 through the water inlet 114, then enters the composite filter element 32 and is filtered by the PP membrane. After being filtered by the PP membrane, it is discharged through the fourth filter element interface 134, then flows into the connection port 147 through the first diversion groove 41, and enters the water inlet valve 34. After the water flows out of the water inlet valve 34, it flows to the first booster pump interface 144, then flows to the second booster pump interface 145, enters the booster pump 33 through the second booster pump interface 145 for pressurization, and then is discharged through the third booster pump interface 146 to complete the pressurization of the water flow. The pressurized water flow flows to the seventh filter element interface 143 through the second diversion groove 42, enters the RO filter element 31 through the seventh filter element interface 143. After the RO filter element 31 filters the water flow, the pure water is discharged from the sixth filter element interface 142, and the wastewater is discharged from the fifth filter element interface 141. The pure water in the sixth filter element interface 142 flows to the third filter element interface 133 through the third diversion groove 43 and enters the activated carbon filtration layer in the composite filter element 32 for filtration. After flowing out of the activated carbon filtration layer, it is discharged from the pure water outlet 115 of the water purifier 200 and can be drunk. The wastewater generated at the fifth filter element interface 141 is discharged to the wastewater outlet 116 through the fourth diversion groove 44 to discharge the wastewater from the water purifier 200.

[0077] Please refer to Figure 4 , in some embodiments, the first diversion groove 41, the second diversion groove 42, the third diversion groove 43, and the fourth diversion groove 44 all protrude from the second surface 12.

[0078] It can be understood that the first diversion groove 41, the second diversion groove 42, the third diversion groove 43, and the fourth diversion groove 44 all protrude from the second surface 12. This is to facilitate the cooperation with the diversion member 50. The diversion member 50 can be snapped into the diversion groove. When the diversion member 50 is snapped into the above-mentioned diversion grooves, the first cover plate 10 and the second cover plate 20 can also be fitted together to improve the tightness of the cooperation between the diversion member 50 and the diversion groove.

[0079] Please refer to Figure 5 and Figure 6 , in some embodiments, the first base 13 and the second base 14 both have a limiting portion 60, and the limiting portion 60 protrudes from the first surface 11.

[0080] It can be understood that the first base 13 and the second base 14 both have a limiting portion 60, and the limiting portion 60 protrudes from the first surface 11. This is to facilitate the installation of the RO filter element 31 and the composite filter element 32 on the first base 13 and the second base 14. Specifically, the first base 13 and the second base 14 both protrude from the second surface 12. In this way, when installing the composite filter element 32 and the RO filter element 31, the first base 13 and the second base 14 can provide positioning for them, facilitating the installation of the RO filter element 31 and the composite filter element 32.

[0081] Please refer to Figure 8 , the present utility model further provides a water purifier 200, which includes a housing 210,

[0082] and the cover plate assembly 100 as described above;

[0083] One side of the housing 210 has an opening 220, and the cover plate assembly 100 is disposed in the opening 220.

[0084] An opening 220 is provided on one side of the water purifier 200 as described above, and the cover plate is disposed in the opening 220. After the cover plate is disposed in the opening 220, the cover plate can not only be used as a water circuit board, but also can be used as a side plate of the water purifier 200, so that the volume of the water purifier 200 can be greatly reduced. Specifically, the cover plate assembly 100 includes a first cover plate 10 and a second cover plate 20. The first cover plate 10 and the second cover plate 20 are connected together by means of gluing or laser welding. The first cover plate 10 has a first surface 11 and a second surface 12. By providing a water purification device 30 on the first surface 11 and a diversion groove structure 40 on the second surface 12, correspondingly, a plurality of diversion members 50 are provided on a third surface 21 of the second cover plate 20 facing the second surface 12. By the cooperation of the diversion members 50 and the diversion groove structure 40, a diversion channel can be formed, and the water purification device 30 provided on the first surface 11 can be communicated through the diversion channel, so that water can flow in the water purification device 30. The water purification device 30 is directly installed on the first cover plate 10, and the water circuit board is connected by gluing the first cover plate 10 and the second cover plate 20, so that the purpose of reducing the volume of the water purifier 200 can be achieved.

[0085] In the present utility model, the mention of "embodiment" and "embodiment manner" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present utility model. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described in the present utility model can be combined with other embodiments. In addition, it should also be understood that the features, structures or characteristics described in each embodiment of the present utility model can be combined arbitrarily without conflict with each other to form another embodiment that does not depart from the spirit and scope of the technical solution of the present utility model.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A cover plate assembly, characterized in that, The cover plate assembly includes a first cover plate and a second cover plate, and the first cover plate is glued to the second cover plate; The first cover plate has a first surface and a second surface arranged opposite to each other. A plurality of water purification devices are arranged on the first surface, and the plurality of water purification devices are connected through a diversion groove structure; The second cover plate has a third surface facing the second surface, and a diversion member is arranged on the third surface. The diversion member and the diversion groove structure cooperate to form a diversion channel.

2. The cover plate assembly according to claim 1, characterized in that, The plurality of water purification devices include an RO filter element, a composite filter element, a booster pump, and a water inlet valve; The first surface is further provided with a first installation part, a second installation part, and a third installation part. The composite filter element is arranged in the first installation part, the RO filter element is arranged in the second installation part, and the booster pump and the water inlet valve are arranged in the third installation part.

3. The cover plate assembly according to claim 2, wherein, The first installation part is provided with a first base, and the composite filter element is arranged on the first base; The first base includes: a first filter element interface, a second filter element interface, a third filter element interface, and a fourth filter element interface; The first filter element interface, the second filter element interface, the third filter element interface, and the fourth filter element interface are all connected to the composite filter element.

4. The cover plate assembly according to claim 3, wherein The second installation part is provided with a second base, and the RO filter element is arranged on the second base; The second base includes: a fifth filter element interface, a sixth filter element interface, and a seventh filter element interface; The fifth filter element interface, the sixth filter element interface, and the seventh filter element interface are all connected to the RO filter element.

5. The cover plate assembly according to claim 4, characterized in that, The third installation part is provided with a first booster pump interface, a second booster pump interface, a third booster pump interface, and a connection port; The connection port and the first booster pump interface are both connected to the water inlet valve, and the second booster pump interface and the third booster pump interface are both connected to the booster pump.

6. The cover plate assembly according to claim 5, characterized in that, The diversion groove structure includes: a first diversion groove, a second diversion groove, a third diversion groove, and a fourth diversion groove; Wherein, the first diversion groove is used to connect the fourth filter element interface and the connection port, the second diversion groove is used to connect the third booster pump interface and the seventh filter element interface, and the third diversion groove is used to connect the third filter element interface and the sixth filter element interface.

7. The cover plate assembly according to claim 6, wherein, The first cover plate has a water inlet, a pure water outlet, and a wastewater outlet; The water inlet is connected to the fourth filter element interface, the pure water outlet is connected to the third filter element interface, and the wastewater outlet is connected to the fifth filter element interface through the fourth diversion groove.

8. The cover plate assembly according to claim 6, wherein The first diversion groove, the second diversion groove, the third diversion groove, and the fourth diversion groove all protrude from the second surface.

9. The cover plate assembly according to claim 4, wherein, Both the first base and the second base have a limiting part, and the limiting parts all protrude from the first surface.

10. A water purifier, characterized in that, The water purifier includes: a housing, and the cover plate assembly according to any one of claims 1 to 9; One side of the housing has an opening, and the cover plate assembly is arranged in the opening.

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