Water purification device

Abstract

The present application relates to a water purification device, which comprises a filter element, a middle frame assembly, a front panel assembly, a door plate assembly, and a waterway plate. The middle frame assembly comprises a containing space, and the containing space is used for containing the filter element. The front panel assembly is arranged at one end of the middle frame assembly. The front panel assembly comprises an opening in communication with the containing space, and the opening is used for allowing the filter element to enter and exit. The door plate assembly is movably connected to the front panel assembly, and the door plate assembly is used for blocking the opening or enabling the opening to communicate with an external space. The waterway plate is arranged at the end of the middle frame assembly away from the front panel assembly and is connected to the filter element, and the waterway plate is used for conveying water. By means of said arrangements, the space utilization rate of the entire water purification device can be increased, such that the structure is compact, and the entire volume of the water purification device can be reduced. The assembly of the device as a whole is simple, the assembly time is effectively shortened, and the assembly efficiency is improved.

Description

water purification equipment

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 202410170627.5, filed on February 6, 2024, entitled “Water Purification Equipment,” the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of water purification technology, and in particular to a water purification device. Background Art

[0004] As people's quality of life improves, more and more people are beginning to pay attention to their health. Water is an essential substance in life, and accordingly, water purifiers and the quality of water they purify have also received widespread attention. Water purifiers, also known as water purifiers or water purifiers, are water treatment equipment that deeply filters and purifies water according to water usage requirements. The filter membrane in the filter element is a key component of the water purifier. Filter membranes used in related technologies mainly include ultrafiltration membranes, RO reverse osmosis membranes, and nanofiltration membranes. Water purifiers are not only suitable for areas with severe tap water pollution, but also for household kitchen water purification, filtering residual chlorine in tap water and improving the taste of water.

[0005] Water purifiers contain a variety of structures and components. In related technologies, the placement and installation of these structures and components can lead to complex disassembly and assembly, difficulty in assembly, and large device size. Therefore, how to rationally plan the placement of the various structures and components within a water purifier is a question that those skilled in the art need to consider.

[0006] Summary of the Invention

[0007] In view of the problems that water purifiers in related technologies have, such as complex disassembly and assembly, difficult assembly, and large equipment size, the present application provides a water purification device.

[0008] The present application provides a water purification device, which includes a filter element, a middle frame assembly, a front panel assembly, a door panel assembly, and a waterway plate. The middle frame assembly includes a accommodating space, which is used to accommodate the filter element; the front panel assembly is arranged at one end of the middle frame assembly, and the front panel assembly includes an opening connected to the accommodating space, and the opening is used for allowing the filter element to enter and exit; the door panel assembly is movably connected to the front panel assembly, and the door panel assembly is used to block the opening or connect the opening with the external space; the waterway plate is arranged at one end of the middle frame assembly away from the front panel assembly and is connected to the filter element, and the waterway plate is used to transmit water.

[0009] In an embodiment of the present application, the middle frame assembly includes a middle frame body, the middle frame body includes a first mounting surface and a second mounting surface arranged opposite to each other, and the middle frame body is configured with at least one of a first mounting position, a second mounting position, a third mounting position and a fourth mounting position; wherein the first mounting position is set on the first mounting surface or the second mounting surface, the second mounting position is set on the first mounting surface, the third mounting position is set on the second mounting surface, and the fourth mounting position is set on the first mounting surface and is located between the second mounting position and the third mounting position.

[0010] In an embodiment of the present application, the middle frame assembly further includes an identification module, which is disposed at the first installation position and is used to identify the filter element.

[0011] In the embodiment of the present application, an anti-counterfeiting identification component is provided on the filter element, and the identification module is provided corresponding to the anti-counterfeiting identification component.

[0012] In an embodiment of the present application, the middle frame assembly further includes a barrier member, which is disposed between the first installation position and the second installation position, and is used to prevent water from contacting the identification module.

[0013] In an embodiment of the present application, the middle frame assembly further includes a boost pump module, which is disposed at the second installation position and connected to the waterway plate.

[0014] In an embodiment of the present application, the middle frame assembly further includes an adapter module, which is disposed at the fourth mounting position and connected to the boost pump module. The boost pump module and the adapter module are arranged in the same direction.

[0015] In the embodiment of the present application, the middle frame assembly further includes a water leakage detection module, which is disposed at the third installation position.

[0016] In the embodiment of the present application, a fifth mounting position is provided on a side of the front panel assembly close to the middle frame body, and the fifth mounting position is used to install the main circuit board.

[0017] In an embodiment of the present application, the middle frame assembly further includes a wire receiving member, which is used to fix the wires connected between the main circuit board and the waterway board.

[0018] In the above-mentioned water purification equipment, the filter element is assembled in the middle frame assembly, the front panel assembly and the waterway plate are respectively assembled at the two ends of the middle frame assembly, and the door panel assembly is movably connected to the front panel assembly. Through these arrangements, the space utilization rate of the entire water purification equipment can be improved, the structure can be made compact, and it is beneficial to reduce the overall volume of the water purification equipment; the overall assembly of the equipment is simple, which effectively reduces the assembly time and improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic diagram of a water purification device in an embodiment of the present application.

[0020] FIG2 is an exploded view of the water purification equipment in an embodiment of the present application.

[0021] FIG3 is a schematic diagram of a middle frame assembly in an embodiment of the present application.

[0022] FIG4 is a schematic diagram showing the positions of the identification module, the booster pump module, the water leakage detection module, and the adapter module in an embodiment of the present application.

[0023] FIG5 is a partially enlarged schematic diagram of the identification module in FIG4 .

[0024] FIG6 is a schematic diagram of a shock absorbing module in an embodiment of the present application.

[0025] FIG7 is a schematic diagram of a shock absorbing unit in an embodiment of the present application.

[0026] FIG8 is a schematic diagram of a water leakage detection module in an embodiment of the present application.

[0027] FIG9 is a cross-sectional view of the filter element in an embodiment of the present application.

[0028] FIG10 is a schematic diagram of the end portion of the filter cartridge in an embodiment of the present application.

[0029] FIG11 is an exploded view of the separator and the middle seat in an embodiment of the present application.

[0030] FIG12 is a schematic diagram showing the position of the stopper in an embodiment of the present application.

[0031] FIG13 is a schematic diagram of a filter element check member in an embodiment of the present application.

[0032] FIG14 is a schematic diagram of a lifting member in an embodiment of the present application.

[0033] FIG15 is an exploded view of the filter element disassembly and assembly device in an embodiment of the present application.

[0034] FIG16 is a schematic diagram of the side of the door panel close to the decorative panel in an embodiment of the present application.

[0035] Figure 17 is a cross-sectional view of the door panel and the front panel body in an embodiment of the present application.

[0036] FIG18 is an enlarged view of point T in FIG17 .

[0037] FIG19 is a schematic diagram of the side of the front panel body away from the door panel assembly in an embodiment of the present application.

[0038] FIG20 is a schematic diagram of a positioning member in an embodiment of the present application.

[0039] FIG21 is a cross-sectional view of the front panel body in an embodiment of the present application.

[0040] FIG22 is an enlarged view of point U in FIG21 .

[0041] Figure 23 is a schematic diagram of the side of the waterway plate body close to the filter element in an embodiment of the present application.

[0042] FIG24 is a schematic diagram of the interior of the waterway plate body in an embodiment of the present application.

[0043] Figure 25 is a schematic diagram of the waterway check member in an embodiment of the present application.

[0044] FIG26 is a schematic diagram of the filter element and the waterway plate after assembly in an embodiment of the present application.

[0045] FIG27 is a cross-sectional view of the waterway plate body in an embodiment of the present application.

[0046] Figure 28 is a schematic diagram of the Chenshui waterway structure in an embodiment of the present application.

[0047] The reference numerals are as follows: housing 1, middle frame assembly 2, middle frame body 21, accommodation space A, guide groove 211, first mounting position 212, second mounting position 213, third mounting position 214, fourth mounting position 215, identification module 22, RFID PCB board 221, positioning portion 222, first supporting portion 223, first fixing portion 224, positioning hole 225, booster pump module 23, booster pump 230, bracket 231, shock absorbing unit 232, shock absorbing member 233, housing member 234, first fixing member 235, mounting groove 236, shock absorbing hole 237, first area 238, second area 239, water leakage detection module 24, water leakage circuit board 241, second fixing portion 242, elastic snap portion 243, second supporting portion 244, first limiting portion 245, adapter module 25, power adapter 251, first mounting bracket 252, second mounting bracket 253, mounting hole 254, blocking member 26, avoidance space 27, connecting groove 28, wire receiving member 29, filter element 3, end cover 31, second groove 311, filter cartridge 32, water inlet 321, pure water outlet 322,Wastewater outlet 323, first mating surface 324, second mating surface 325, second identification member 326, top cover 33, second water outlet 331, fourth water outlet 332, middle seat 34, first water outlet 341, block 342, blocking rib 343, third water outlet 344, bottom cover 35, partition 36, connecting port 361, connecting portion 362, first extension portion 363, second extension portion 364, third extension portion 365, stopper 37, scale inhibitor 38, filter element check member 39, lifting member 30, second limiting portion 301, first sealing portion 391, first blocking portion 392, first elastic portion 393, second sealing portion 394, a chamber B, a first Flow channel C, second flow channel D, second filter element E, third chamber F, fourth chamber G, door panel assembly 4, decorative panel 41, door panel 42, third support portion 421, third limiting portion 422, accommodating chamber I, front panel assembly 5, main circuit board 50, second opening H, front panel body 51, positioning member 52, bearing portion 521, blocking portion 522 positioning groove 523, third guide portion 524, supporting member 53, second fixing member 54, focusing hole 551, first hole portion 552, second hole portion 553, first snap member 61, pressing portion 611, first snap member 612, second guide portion 613, limiting groove 614, second snap member 62, sealing chamber J, drive assembly 7 , pull rod 71, slider 72, guide groove 73, first pushing part 74, second pushing part 75, waterway plate 8, waterway plate body 81, raw water inlet 811, pure water inlet 812, waste water inlet 813, water inlet interface 814, pure water interface 815, waste water interface 816, booster pump inlet 817, booster pump outlet 818, first inlet 819, first outlet 820, second inlet 821, second outlet 822, third inlet 823, third outlet 824, pure water outlet hole 825, return water inlet 826, drainage inlet 827, connecting piece 83, fourth inlet 831, fourth outlet 832, fifth outlet 833, waterway check member 84, second blocking Part 841, pushing part 842, second elastic part 843, first detection part 85, first valve part 86, second detection part 87, second valve part 88, third valve part 89, sealing part 801, plate part 802, first identification part 803, first water channel K, second water channel L, third water channel M, fourth water channel R, fifth water channel S, Chenshui water channel structure 9, pure water inlet 91, return water outlet 92, drainage outlet 93, sixth inlet 94, sixth outlet 95, seventh inlet 96, seventh outlet 97, return water outlet channel N, drainage outlet channel O, first branch P, second branch Q, end plate 10, first direction X, second direction Y, third direction Z. DETAILED DESCRIPTION

[0048] To make the purposes, features, and advantages of this application more readily apparent, the present application is described in detail below with reference to the accompanying drawings and specific embodiments. The following description sets forth numerous specific details to facilitate a full understanding of this application. However, this application can be implemented in many other embodiments than those described herein, and those skilled in the art may make similar modifications without departing from the scope of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0050] Referring to Figure 1 , an embodiment of the present application provides a water purification device for filtering tap water, thereby removing harmful substances from the tap water and ensuring the safety of drinking water. The water purification device is suitable for various locations requiring water purification. Optionally, the water purification device of the present application is an under-sink water purifier for use in a home kitchen.

[0051] Referring to Figures 2 and 3, the water purification equipment includes an outer shell 1, a middle frame assembly 2, a filter element 3, a filter element disassembly and assembly device, a water channel plate 8, a water channel structure 9, and an end plate 10. The outer shell 1 serves as the outer shell of the entire water purification equipment and plays a role in protecting the internal components and structures. The inner shell 1 has an installation space for installing the middle frame assembly 2. The inner shell 2 has an accommodating space A for accommodating the filter element 3. The filter element 3 is used to filter the external water source / raw water. One end of the outer shell 1 has a first installation port for installing the filter element disassembly and assembly device. The filter element disassembly and assembly device is at least partially connected to the middle frame assembly 2. The filter element disassembly and assembly device is used to remove the filter element 3 from the middle frame assembly 2, or to install the filter element 3 from the outside into the accommodating space A of the middle frame assembly 2. The other end of the housing 1 has a second mounting port, which is used to install a waterway plate 8. The waterway plate 8 is also connected to the filter element 3. The waterway plate 8 is used to transport an external water source into the filter element 3, and is also used to transport the pure water and wastewater generated after filtration by the filter element 3 to the outside. The sump waterway structure 9 is detachably connected to the waterway plate 8. The sump waterway structure 9 is used to control the total dissolved solids (TDS) value of the water within an acceptable range. It is understandable that the acceptable range can be set according to actual needs or industry standards. The end plate 10 is also assembled in the second mounting port. The end plate 10 is located on the side of the waterway plate 8 away from the middle frame assembly 2.

[0052] The first direction X, the second direction Y and the third direction Z will be used in the description of this application. The three directions are described here and will not be repeated below. As shown in Figure 1, the first direction X, the second direction Y and the third direction Z are perpendicular to each other. Specifically, the first direction X is the left-right direction, the second direction Y is the front-back direction, and the third direction Z is the up-down direction. The front-back direction in the description of this application refers to the direction from the side of the target object close to the observer to the side away from the observer when the observer observes the target object. As shown in Figure 1, the front-back direction is at a certain angle to the vertical direction of the paper; of course, in other embodiments, the front-back direction can also be perpendicular to the paper. As shown in Figure 1, the first mounting port is located on the side of the water purification equipment close to the observer, that is, facing forward, the filter element disassembly and assembly device is located at the front end of the water purification equipment, the second mounting port is located on the side of the water purification equipment away from the observer, that is, facing backward, the waterway plate 8 is located at the rear end of the water purification equipment, and the filter element disassembly and assembly device and the waterway plate 8 are respectively arranged at both ends of the housing 1 along the second direction Y.

[0053] The middle frame assembly 2, the filter element 3, the filter element disassembly and assembly device, the water channel plate 8 and the stagnation water channel structure 9 will be described in sequence below.

[0054] As shown in Figure 3, the middle frame assembly 2 includes a middle frame body 21, both ends of which are open. The middle frame body 21 is used to provide support and installation position for other components. The middle frame body 21 extends along the second direction Y, and the accommodating space A is formed inside the middle frame body 21. Furthermore, a first guide portion and a guide groove 211 are relatively provided between the middle frame body 21 and the filter element 3. The first guide portion and the guide groove 211 are used to guide the movement of the filter element 3, so that the filter element 3 can be accurately and smoothly installed in the accommodating space A. In the embodiment of the present application, the guide groove 211 is located on the inside of the middle frame body 21, and the first guide portion is located on the outside of the filter element 3.

[0055] The middle frame body 21 includes a first mounting surface and a second mounting surface arranged opposite to each other along the third direction Z. The middle frame body 21 is configured with a first mounting position 212, a second mounting position 213, a third mounting position 214, and a fourth mounting position 215. Specifically, the first mounting position 212 is set on the first mounting surface or the second mounting surface, the second mounting position 213 is set on the first mounting surface, the third mounting position 214 is set on the second mounting surface, and the fourth mounting position 215 is set on the first mounting surface and located between the second mounting position 213 and the third mounting position 214. The provision of the mounting positions facilitates the installation of modules and components.

[0056] Furthermore, as shown in Figures 3 and 4 , the middle frame assembly 2 also includes an identification module 22, a booster pump module 23, a water leakage detection module 24, and an adapter module 25. Specifically, the identification module 22 is located in the first mounting position 212 and is used to identify the filter element 3; the booster pump module 23 is located in the second mounting position 213 and is used to connect to the waterway plate 8; the water leakage detection module 24 is located in the third mounting position 214 and is used to detect whether the water purification device is leaking; the adapter module 25 is located in the fourth mounting position 215 and is connected to the booster pump module 23. In addition, the adapter module 25 is also connected to other electrical components that require power and is used to adapt the power supply voltage to the voltage range required for the normal operation of the water purification device.

[0057] In the embodiment of the present application, the first mounting surface is the upper arc surface of the middle frame body 21 , and the second mounting surface is the lower arc surface of the middle frame body 21 .

[0058] The first mounting position 212 is provided on a side of the middle frame body 21 near the filter element assembly and disassembly device. Furthermore, the first mounting position 212 can be provided at any position on the first mounting surface or the second mounting surface, as long as the identification module 22 can correspond to the anti-counterfeiting identification component on the filter element 3. In the embodiment of the present application, as shown in FIG3 , the first mounting position 212 is located on the first mounting surface.

[0059] As shown in Figure 5, the identification module 22 includes an RFID PCB 221 and a first mounting member. The RFID PCB 221 is capable of identifying and reading information from the NFC anti-counterfeiting identification element on the filter element 3. The first mounting member is used to mount the RFID PCB 221 to the first mounting surface. The first mounting member includes a positioning portion 222, a first support portion 223, and a first fixing portion 224. The positioning portion 222, the first support portion 223, and the first fixing portion 224 are all disposed on the middle frame body 21. The RFID PCB 221 is provided with a positioning hole 225. The positioning portion 222 can penetrate the positioning hole 225 to position the RFID PCB 221 in the first mounting position 212. The first support portion 223 is provided with a supporting boss that supports the outer edge of the RFID PCB 221. The supporting boss maintains a certain distance between the RFID PCB 221 and the middle frame body 21 to prevent collision. The first fixing portion 224 is provided with a threaded hole, and the RFID PCB board 221 is installed by screwing a bolt into the threaded hole; optionally, the position of the RFID PCB board 221 corresponding to the threaded hole of the first fixing portion 224 can be provided with a small hole adapted to the aperture of the threaded hole, and the bolt can be screwed into the threaded hole through the small hole to install the RFID PCB board 221 on the first mounting surface through the first fixing portion 224.

[0060] As shown in Figure 6, the boost pump module 23 includes a boost pump 230, a bracket 231, and a shock absorbing unit 232. The boost pump 230 is connected between the boost pump inlet 817 and the boost pump outlet 818 of the waterway plate 8; the bracket 231 is arranged below the boost pump 230, and is used to support the boost pump 230. The bracket 231 and the boost pump 230 are integrally arranged or connected together by bolts; the shock absorbing unit 232 is arranged between the bracket 231 and the middle frame body 21, and is used to install the boost pump 230. At the same time, it is also used to buffer the vibration generated by the boost pump 230.

[0061] In the embodiment of the present application, two shock absorbing units 232 are provided, and the two shock absorbing units 232 are respectively provided on both sides of the bracket 231 along the first direction X. In other embodiments, three, four, five, etc. shock absorbing units 232 may also be provided.

[0062] As shown in Figure 7, each shock absorbing unit 232 includes a shock absorbing member 233, a housing 234, and a first fixing member 235. The bracket 231 is at least partially inserted into the shock absorbing member 233, which is used to absorb energy generated by the vibration of the booster pump 230. The housing 234 covers the outer periphery of the shock absorbing member 233, which can fix the shock absorbing member 233 and protect the shock absorbing member 233 from wear. The first fixing member 235 is connected to the housing 234 and the shock absorbing member 233 and is used to fix the housing 234 and the shock absorbing member 233 to the middle frame body 21.

[0063] The shock absorber 233 includes a mounting slot 236 and at least one shock-absorbing hole 237. The mounting slot 236 extends along the second direction Y, with its opening facing the bracket 231. The mounting slot 236 matches the shape of the portion of the bracket 231 inserted into the shock absorber 233, and the bracket 231 is inserted into the mounting slot 236 through the opening. The shock-absorbing hole 237 is used to mitigate vibrations transmitted from the booster pump 230 to the middle frame body 21. To install the booster pump 230, the bracket 231 is inserted into the mounting slot 236, followed by the outer shell 234 covering the shock absorber 233. Finally, the outer shell 234 and shock absorber 233 are secured together using the first fixing member 235, quickly completing the installation of the booster pump 230. During operation, the shock energy generated by the booster pump 230 is absorbed by the shock absorber 233 and the shock-absorbing hole 237.

[0064] Optionally, the shock absorbing member 233 is made of an elastic material, for example, the shock absorbing member 233 may be made of rubber, polymer, etc.

[0065] There is no limit to the number of the shock-absorbing holes 237 , and one, two, three, etc., can be provided. The more the shock-absorbing holes 237 are, the better the shock-absorbing effect on the boosting pump 230 is.

[0066] Optionally, the mounting slot 236 is located in the middle of the plurality of shock-absorbing holes 237, and the shock-absorbing member 233 is divided into a first region 238 and a second region 239 centered on the mounting slot 236. The first region 238 is located on the side of the mounting slot 236 closer to the middle frame body 21, and the second region 239 is located on the side of the mounting slot 236 farther from the middle frame body 21. In some embodiments, the shock-absorbing holes 237 may be provided only in the first region 238. Since most of the vibration generated by the boost pump 230 is transmitted to the middle frame body 21, sufficient shock-absorbing holes 237 may be provided only on the side of the shock-absorbing member 233 closer to the middle frame body 21 to meet the shock-absorbing requirements. In the embodiment of the present application, as shown in FIG7 , shock-absorbing holes 237 are provided in both the first region 238 and the second region 239, which helps to improve the shock-absorbing effect of the shock-absorbing member 233.

[0067] Based on the fact that both the first region 238 and the second region 239 are provided with shock-absorbing holes 237, in some embodiments, the first region 238 and the second region 239 are provided with the same number of shock-absorbing holes 237; or, in some embodiments, the first region 238 is provided with more shock-absorbing holes 237 than the second region 239. Providing more shock-absorbing holes 237 in the first region 238 can better reduce the vibration transmitted from the boost pump 230 to the middle frame body 21. Furthermore, the shock-absorbing holes 237 in the first region 238 and the second region 239 are both arranged along the second direction Y.

[0068] Both ends of the shock absorber 233 and the outer shell 234 are provided with through-holes, and the first fixing member 235 secures the outer shell 234 and the shock absorber 233 to the middle frame body 21 through the through-holes. Specifically, the first fixing member 235 includes a smooth section and a threaded section connected in sequence. The smooth section is located in the through-hole, and the threaded section is used to connect with the threaded hole of the middle frame body 21.

[0069] As shown in Figure 8, the water leakage detection module 24 includes a water leakage circuit board 241. The water leakage circuit board 241 includes a probe, and the water leakage circuit board 241 is electrically connected to the main circuit board 50. The water leakage circuit board 241 is arranged near the waterway board 8, and can also be arranged below the booster pump 230. When the booster pump 230 or the waterway board 8 leaks, the water will flow downward along the middle frame body 21, and the water will conduct the probe on the water leakage circuit board 241, thereby causing a short circuit. At the same time, the water leakage circuit board 241 sends a short circuit signal to the main circuit board 50. The main circuit board 50 controls the entire device to stop running based on the signal sent by the water leakage circuit board 241. The position setting of the water leakage circuit board 241 enables it to quickly detect water leakage in the equipment and take timely protective measures. It is understandable that water leakage in other places in the water purification equipment can also be detected by the water leakage circuit board 241.

[0070] The water leakage detection module 24 also includes a second mounting member, which is used to mount the water leakage circuit board 241 to the second mounting surface. Specifically, the second mounting member includes a second fixing portion 242 and an elastic snap portion 243, which are spaced apart and used to fix the water leakage circuit board 241. Furthermore, the second fixing portion 242 is provided with a first groove, which faces the elastic snap portion 243. When installing the water leakage circuit board 241, one side of the water leakage circuit board 241 is first inserted into the first groove. At this time, the other side of the water leakage circuit board 241 is placed on the elastic snap portion 243. Pressing the water leakage circuit board 241 on the side of the elastic snap portion 243 can cause the water leakage circuit board 241 to snap into the gap between the elastic snap portion 243 and the middle frame body 21. The second mounting part replaces the traditional installation method of fixing the leaking circuit board 241 with bolts, which can greatly shorten the installation time. In addition, due to the elastic design of the elastic snap-on portion 243, the leaking circuit board 241 is also more convenient to replace. The leaking circuit board 241 can be removed from it by simply applying force to the elastic snap-on portion 243 outward, making it easier to replace the leaking circuit board 241.

[0071] The second mounting member also includes a second support portion 244 and a first stop portion 245, with the second support portion 244 connected to the first stop portion 245. Preferably, two second support portions 244 and two first stop portions 245 are provided, with the two second support portions 244 and two first stop portions 245 located on either side of the leaky circuit board 241. It is understood that the upper surface of the second support portion 244 is substantially coplanar with the first groove, so that the second support portion 244 can support the leaky circuit board 241 after the leaky circuit board 241 is inserted into the first groove. The first stop portion 245 is L-shaped and is used to confine the leaky circuit board 241 within the third mounting position 214, preventing it from shifting once installed.

[0072] Referring again to Figures 3 and 4, the adapter module 25 includes a power adapter 251 and a third mounting member, which is used to mount the power adapter 251 to the fourth mounting position 215. The third mounting member includes a first mounting bracket 252 and a second mounting bracket 253. The first mounting bracket 252 and the second mounting bracket 253 are spaced apart. The first mounting bracket 252 is used to secure the first end of the power adapter 251, and the second mounting bracket 253 is used to secure the second end of the power adapter 251. Specifically, the power adapter 251 can be secured using bolts. Furthermore, the second mounting bracket 253 includes a plurality of mounting holes 254 spaced apart. The provision of a plurality of mounting holes 254 can accommodate power adapters 215 of different sizes. When installing the power adapter 251, the appropriate mounting hole 254 can be selected based on the length of the power adapter 251.

[0073] In the embodiment of the present application, the first mounting bracket 252 and the second mounting bracket 253 are spaced apart along the second direction Y, so that the power adapter is arranged along the second direction Y, and the booster pump 230 is also arranged along the second direction Y. The booster pump 230 and the power adapter 251 are both concentrated above the middle frame body 21, and the booster pump 230 is located on one side of the power adapter 251. This can improve the integration of modules within the middle frame assembly 2, save space occupied by the power adapter 251 and the booster pump 230, and shorten the size of the middle frame body 21 in the second direction Y, making the entire water purification device more compact.

[0074] The middle frame assembly 2 also includes a barrier 26, which is disposed between the identification module 22 and the boost pump module 23. Specifically, the barrier 26 includes a first barrier portion, a second barrier portion, and a third barrier portion. The first barrier portion and the third barrier portion are respectively connected to the ends of the second barrier portion. The first barrier portion and the third barrier portion both extend toward the identification module 22. The first, second, and third barrier portions enclose a first mounting position 212. The first, second, and third barrier portions prevent water from entering the first mounting position 212, thereby preventing water from coming into contact with the identification module 22 and providing a waterproof effect.

[0075] The middle frame assembly 2 also includes a wire receiving part 29, which is used to bundle and fix the wires connected between the main circuit board 50 and the water circuit board 8 to keep the interior of the water purification equipment tidy. The specific structure of the wire receiving part 29 is not limited. It can be a structure of a storage groove and a pressure cover, or a structure of a hole and a strap, as long as it can achieve the function of fixing the wires.

[0076] As shown in Figures 9-12, the filter element 3 includes an end cap 31 and a filter cartridge 32. The end cap 31 is sealed to the filter cartridge 32. During installation, the filter cartridge 32 is pushed into the accommodating space A from the front end of the water purification device until the end of the filter cartridge 32 away from the end cap 31 is connected to the waterway plate 8. This completes the installation between the filter element 3 and the waterway plate 8.

[0077] Inside the filter cartridge 32, a top cover 33, a middle seat 34, and a bottom cover 35 are sequentially arranged toward the end cap 31. The top cover 33 is sealedly connected to the middle seat 34, and the middle seat 34 is spaced apart from the bottom cover 35. The top cover 33, middle seat 34, and base are used to provide support and mounting locations for the components within the filter element 3.

[0078] The end of the filter cartridge 32 away from the end cap 31 is provided with a filter element water inlet, which is used to connect to the water inlet of the waterway plate. Specifically, the filter element water inlet is provided with three: a water inlet 321, a pure water outlet 322, and a wastewater outlet 323. The water inlet 321 is used to supply external water to the filter cartridge 3, and the pure water outlet 322 and wastewater outlet 323 are used to output pure water and wastewater, respectively, to the waterway plate 8.

[0079] The filter element 3 also includes a separator 36. Separator 36 is positioned within the center seat and has a clearance fit with center seat 34. A first chamber B is formed between separator 36 and top cover 33. First chamber B communicates with pure water outlet 322 and houses a first filter element. A first flow channel C is formed between separator 36 and center seat 34. Center seat 34 is provided with a first water outlet 341, which communicates with first chamber B via first flow channel C.

[0080] The separator 36 and the center seat 34 are clearance-matched. This clearance-matching arrangement facilitates the assembly and disassembly of the separator 36. It is understood that the gap between the separator 36 and the center seat 34 should not be set too large. This facilitates the assembly of the separator 36 while also providing stable support for the first filter element. Furthermore, a block 342 is provided on the inner wall of the center seat 34. The end face of the separator 36 away from the first water outlet 341 abuts against the block 342. Furthermore, the center seat 34 is provided with a plurality of retaining ribs 343. The retaining ribs 343 are spaced apart and extend from the center seat 34 toward the first chamber B. In the embodiment of the present application, the bottom surface of the center seat 34 and the end face of the first water outlet 341 are both provided with retaining ribs 343. The block 342 and the retaining rib 343 together limit and fix the separator 36, thereby restricting the movement of the separator 36 relative to the center seat 34.

[0081] The partition 36 is arranged between the top cover 33 and the middle seat 34. Firstly, it can support and fix the first filter element in the first chamber B to prevent the filter material in the first filter element from dispersing, thereby ensuring the filtering effect of the filter element 3; secondly, it can separate the first filter element in the first chamber B from the first water outlet 341 through the first flow channel C, so that the first filter element will not directly cover the end of the first water outlet 341, thereby increasing the water outlet speed of the first water outlet 341.

[0082] The separator 36 includes a communication opening 361, which connects the first chamber B and the first flow channel C. The communication opening 361 is not coaxial with the first water outlet 341. Specifically, multiple communication openings 361 are provided, spaced circumferentially around the first water outlet 341. After flowing out of the first water outlet 341, water flows sequentially through the first flow channel C, the communication opening 361, and the first chamber B. Because the communication opening 361 is not coaxial with the first water outlet 341 and the arrangement of the first flow channel C, water in the first flow channel C diffuses outward from the first water outlet 341. Furthermore, after passing through the communication opening 361, the water can extensively cover the first filter element within the first chamber B, ensuring sufficient contact between the first filter element and the water.

[0083] Furthermore, the connecting port 361 includes a first end and a second end, the first end is an end close to the first water outlet 341, and the second end is an end away from the first water outlet 341. The cross-sectional area from the first end to the second end gradually increases. This setting can also allow most of the water to diffuse to the outside, allowing the water to fully contact the first filter element.

[0084] Furthermore, the top cover 33 is provided with a second water outlet 331, and the first chamber B is connected to the pure water outlet 322 through the second water outlet 331. The second water outlet 331 is coaxially arranged with the first water outlet 341. It is previously recorded that the water is diffused outward through the first flow channel C and the connecting port 361. Combined with the coaxial arrangement of the second water outlet 331 and the first water outlet 341, the water in the first chamber B can diffuse outward and then converge to the second water outlet 331, thereby extending the flow path of the water in the first chamber B and the contact time with the first filter element, thereby effectively improving the filtering effect of the water.

[0085] The present application has two ways to set up the separator 36. One is to set the cross-section of the separator 36 to be U-shaped, with its U-shaped opening facing upward. The other is to set the separator 36 to be a special shape. Specifically, the separator 36 includes a connecting portion 362, a first extension portion 363, a second extension portion 364, and a third extension portion 365 connected in sequence from the outside to the inside. The connecting portion 362 and the second extension portion 364 are parallel to each other, and the first extension portion 363 and the third extension portion 365 are parallel to each other; the connecting portion 362 is used to abut against the block 342, and the connecting portion 362 is perpendicular to the first extension portion 363; the first extension portion 363 is perpendicular to the second extension portion 364, and the first extension portion 363 is annular, and the connecting port 361 is opened on the first extension portion 363; the second extension portion 364 is cylindrical, and the central axis of the second extension portion 364 is perpendicular to the third extension portion 365. In the embodiment of the present application, by avoiding opening the communication port 361 on the third extension portion 365, water can be prevented from flowing directly from the middle of the first filter element, thereby achieving sufficient filtration of the water and giving full play to the function of the first filter element.

[0086] The filter element 3 also includes a stopper 37. The stopper 37 is disposed at the first water outlet 341 and is used to prevent the filter material in the first filter element, such as granular activated carbon, from entering the first water outlet 341. A gap exists between the partition 36 and the inner wall of the center seat 34. After long-term use of the water purification equipment, granular activated carbon may flow out of the gap. After flowing out of the gap, the granular activated carbon sequentially enters the first flow channel C and the first water outlet 341. By providing the stopper 37 at the first water outlet 341, the granular activated carbon can be effectively prevented from entering the first water outlet 341, thereby preventing it from clogging the first water outlet 341. It is understood that the stopper 37 can prevent the granular activated carbon from entering the first water outlet 341, but it does not hinder the flow of water from the first water outlet 341. As for the stopper 37, it is sufficient as long as it can achieve the aforementioned function. In some embodiments of the present application, the stopper 37 can be made of non-woven fabric.

[0087] The first filter element includes two non-woven fabrics, one non-woven fabric is arranged on the side of the partition close to or away from the first flow channel, and the other non-woven fabric is arranged on the side of the top cover close to the first chamber. Of course, in other embodiments, in order to meet the needs of users, trace elements such as strontium and selenium may also be included in the first filter element. In the embodiment disclosed in the present application, the non-woven fabric is fixed by an ultrasonic welding jig. Taking the non-woven fabric on the partition as an example, specifically, a plurality of welding ribs are provided on the partition 36, and the welding ribs are distributed at intervals in a circle and extend from the outer edge of the partition 36 to the center of the partition 36. The non-woven fabric is covered on the partition 36, and the welding ribs are melted by an ultrasonic welding jig to fix the non-woven fabric on the partition 36.

[0088] A second chamber is formed between the bottom cover 35 and the middle seat 34. A second flow channel D and a second filter element E are provided in the second chamber. The second flow channel D is located in the center of the second chamber and extends along the length direction of the filter cartridge 32. The end of the second flow channel D extends outside the second chamber and is connected to the first water outlet 341. The second filter element E is sleeved on the periphery of the second flow channel D. In some embodiments, a third filter element is also provided in the second chamber, and the third filter element is sleeved on the periphery of the second filter element. In the embodiments disclosed in the present application, the first filter element is a post-filter element, the second filter element is an RO reverse osmosis membrane, and the third filter element is a pre-filter element. The first filter element, the second filter element, and the third filter element are all used to filter water. During actual filtration, the water passes through the third filter element, the second filter element, and the first filter element in sequence to complete the filtration.

[0089] The middle seat 34 is provided with a third water outlet 344, and the top cover 33 is provided with a fourth water outlet 332. The third water outlet 344 is provided corresponding to the second filter element E and extends along one end close to the top cover 33. The third water outlet 344 is connected to the wastewater outlet 323 through the fourth water outlet 332.

[0090] In actual use, raw water in the waterway plate 8 flows from the water inlet 321 through the third filter element and the second filter element E, generating pure water and wastewater. The pure water flows through the second flow channel D, the first water outlet 341, the first flow channel C, the first filter element, and the second water outlet 331, before exiting through the pure water outlet 322. The wastewater flows through the third water outlet 344 and the fourth water outlet 332, before exiting through the wastewater outlet 323.

[0091] The filter element 3 also includes a scale inhibitor 38, which is disposed within the filter cartridge 32 and comes into contact with the raw water before the second filter element E. The scale inhibitor 38 purifies the raw water, reducing its impurity concentration to a certain extent and shortening the time it takes for impurities to crystallize on the surface of the second filter element E, thereby extending the service life of the second filter element E. Specifically, a third chamber F is formed between the side of the top cover 33 facing away from the end cap 31 and the filter cartridge 32, and a fourth chamber G is formed between the outer periphery of the top cover 33 and the inner wall of the filter cartridge 32. The scale inhibitor 38 is located in at least one of the third and fourth chambers F and G. The number of scale inhibitors 38 can be selected based on actual usage and the internal layout of the filter element 3. In the embodiment of the present application, scale inhibitors 38 are located in both the third and fourth chambers F and G. Two scale inhibitors 38 can improve scale removal efficiency.

[0092] As shown in Figure 13, the filter element 3 also includes a filter element check member 39. The filter element check member 39 is arranged in the filter element water outlet. The filter element check member 39 is used to block or open the filter element water outlet. In the embodiment of the present application, three filter element check members 39 are provided, and the three filter element check members 39 correspond to the water inlet 321, the pure water outlet 322, and the wastewater outlet 323 respectively. It can be understood that the states of the three filter element check members 39 are all synchronized, that is, they simultaneously open the water inlet 321, the pure water outlet 322, and the wastewater outlet 323, or simultaneously block the water inlet 321, the pure water outlet 322, and the wastewater outlet 323. The following will describe the filter element check member 39 using the wastewater outlet 323 as an example. The filter element check members 39 in the pure water outlet 322 and the water inlet 321 have roughly the same role and function as the filter element check member 39 in the wastewater outlet 323, and will not be described in detail below.

[0093] The wastewater outlet 323 includes a first opening and a bottom wall that are arranged opposite each other. The filter element check member 39 includes a first sealing portion 391, a first blocking portion 392, and a first elastic portion 393. The first sealing portion 391 is annular, with the outer ring of the first sealing portion 391 fixedly connected to the inner wall of the wastewater outlet 323, and the inner ring of the first sealing portion 391 matches the first blocking portion 392. The first blocking portion 392 is located between the first sealing portion 391 and the first elastic portion 393, and the first elastic portion 393 abuts between the first blocking portion 392 and the bottom wall. The first elastic portion 393 is used to apply a driving force to the first blocking portion 392, so that the first blocking portion 392 can conflict with the inner ring of the first sealing portion 391, thereby achieving the function of blocking the wastewater outlet 323.

[0094] The first sealing portion 391 is ultrasonically welded inside the wastewater outlet 323 , and its function is to prevent the first blocking portion 392 from moving toward the first opening.

[0095] The first blocking portion 392 includes a blocking position and a conducting position. Specifically, the blocking position is where the first blocking portion 392 contacts the first sealing portion 391, while the conducting position is where the first blocking portion 392 separates from the first sealing portion 391. Furthermore, the first blocking portion 392 is configured to be movable from the conducting position to the blocking position under the action of the first elastic portion, so that the first blocking portion 392 contacts the first sealing portion 391 to block the wastewater outlet 323. The first blocking portion 392 is also configured to be movable from the blocking position to the conducting position under the action of the waterway plate 8, so that the wastewater outlet 323 and the waterway plate 8 are connected.

[0096] In some embodiments, the filter element check member 39 also includes a second sealing portion 394, which is annular. The second sealing portion 394 is arranged in a sealing groove at the first opening. During the installation process of the filter element 3 and the waterway plate 8, the water outlet of the waterway plate will extend into the water outlet of the filter element. At this time, the first sealing member can seal the wastewater outlet 323 and the water outlet of the waterway plate.

[0097] As shown in reference figure 14, the filter element 3 also includes a lifting member 30, which is provided on the end cover 31 and is used to lift the entire filter element 3. The lifting member 30 is semi-circular in shape and is rotatably connected to the end cover 31. Specifically, the relative positions of the lifting member 30 and the end cover 31 are provided with matching pins and pin holes, and the pins are accommodated in the pin holes. The rotational connection between the lifting member and the end cover 31 is achieved through the pins and pin holes. The lifting member 30 includes an initial position and a lifting position. In the initial position, the lifting member 30 is in contact with the end cover 31. In the lifting position, the lifting member 30 is no longer in contact with the end cover 31, and an angle exists between the plane where the lifting member 30 is located and the plane where the end cover 31 is located. Specifically, when the filter element 3 needs to be replaced, the lifting member 30 can be switched from the initial position to the lifting position, so that the filter element 3 can be pulled out of the accommodating space A through the lifting member 30; when the filter element 3 is installed, the lifting member 30 can be switched from the lifting position to the initial position.

[0098] Furthermore, the lifting member 30 and the end cap 31 are provided with a second stopper 301 and a second groove 311 that match each other. In the initial position, the second stopper 301 is accommodated in the second groove 311, which prevents the filter element 3 from swinging freely after installation. Furthermore, when the second stopper 301 is inserted into the second groove 311, a clicking sound is produced, providing a tactile feedback to the user, indicating that the lifting member 30 has reached the initial position, thereby improving the user experience.

[0099] Referring to Figures 15 and 19 , the filter element disassembly and assembly device includes a door panel assembly 4, a front panel assembly 5, and a locking assembly. The front panel assembly 5 is disposed at the first mounting port and is connected to the middle frame body 21. The front panel assembly 5 is provided with a second opening H, which is in communication with the accommodating space A and is used for allowing the filter element 3 to enter and exit. The door panel assembly 4 is disposed on a side of the front panel assembly 5 away from the middle frame body 21 and is rotatably connected to the front panel assembly 5. Specifically, the door panel assembly 4 can be flipped to a first position in contact with the front panel assembly 5, or to a second position perpendicular to the front panel assembly 5. Flipping the door panel assembly 4 facilitates the disassembly and assembly of the filter element 3. The locking assembly is arranged between the front panel assembly 5 and the door panel assembly 4. The locking assembly is used to lock or release the front panel assembly 5 and the door panel assembly 4. For example, when the filter element 3 is installed, the locking assembly can lock the door panel assembly 4 in the first position. When the filter element 3 needs to be replaced, the locking assembly can release the door panel assembly 4 so that the door panel assembly 4 can be flipped from the first position to the second position, so that the filter element 3 can be taken out from the second opening H.

[0100] As shown in Figures 15-18 , the door panel assembly 4 includes a decorative panel 41 and a door panel 42. The decorative panel 41 and the door panel 42 are fixedly connected, and the decorative panel 41 is closer to the front panel assembly 5 than the door panel 42. A pin and a pin hole are provided between the front panel assembly 5 and the decorative panel 41, and the pin and the pin hole realize the rotational connection between the door panel assembly 4 and the front panel assembly 5.

[0101] The locking assembly includes a first latch 61, an elastic member, and a second latch 63. A receiving cavity I is formed between the decorative panel 41 and the door panel 42. The first latch 61 and the elastic member are disposed within the receiving cavity I. The first latch 61 is slidably coupled to the door panel assembly 4, enabling it to slide within the receiving cavity I. The second latch 63 is disposed on the front panel assembly 5. The first latch 61 and the second latch 63 mate with each other and engage with each other. The elastic member abuts between the first latch 61 and the door panel assembly 4, applying a driving force to the first latch 61.

[0102] Furthermore, the first latch 61 has a locked position and a released position. The first latch 61 is configured to be movable from the locked position to the released position under the action of an external force, and from the released position to the locked position under the action of an elastic member. Furthermore, in the locked position, the first latch 61 and the second latch 63 engage with each other, allowing the door panel assembly 4 to block the second opening H. In the released position, the first latch 61 and the second latch 63 disengage from each other, allowing the filter element 3 to be removed from the second opening H.

[0103] In the embodiment of the present application, the external force may be a pressing force exerted by a person, that is, the filter element 3 can be disassembled and assembled by the pressing operation of the person in combination with the flipping of the door panel assembly 4. Specifically, during the disassembly process, the person presses the first latch 61 and squeezes the elastic member, so that the first latch 61 and the second latch 63 are separated from each other, thereby allowing the door panel assembly 4 to flip from the first position to the second position. At this time, the second opening H is connected to the external space, allowing the filter element 3 to be removed from the middle frame assembly 2; during the installation process, the filter element 3 is first installed into the middle frame assembly 2, and then the first latch 61 is pressed, and the door panel assembly 4 is flipped from the second position to the first position. Finally, the person releases the pressing force, and the elastic member releases the elastic force, so that the first latch 61 and the second latch 63 are engaged with each other, thereby locking the door panel assembly 4 in the first position. At this time, the second opening H is blocked by the door panel assembly 4, and the installation of the filter element 3 is completed. Through the pressing operation of the person, the setting of the locking assembly, and the flipping of the door panel assembly 4, the disassembly and assembly process of the filter element 3 can be simplified, and the filter element 3 can be quickly disassembled and assembled, saving time and effort.

[0104] The first latch 61 includes a pressing portion 611 and a first latch portion 612. The pressing portion 611 and the first latch portion 612 are connected to each other. Optionally, the pressing portion 611 and the first latch portion 612 are integrally arranged. The pressing portion 611 can be in the shape of a plate / block / column, and the pressing portion 611 at least partially protrudes outside the door panel assembly 4. This arrangement can facilitate the application of pressing force to the pressing portion 611. A first locking groove is formed between the pressing portion 611 and the first latch portion 612. Specifically, the first latch portion 612 can be L-shaped or hook-shaped, and the notch of the first locking groove is arranged in a direction close to the second latch 63. The first locking groove is used to engage with the second latch 63.

[0105] A second guide portion 613 and a guide hole are relatively arranged between the first latch 61 and the door panel assembly 4. The second guide portion 613 is accommodated in the guide hole and can slide in the guide hole. The second guide portion 613 and the guide hole are used to guide the movement of the first latch 61 between the locking position and the release position to avoid the first latch 61 from tilting during the movement.

[0106] In this embodiment of the present application, the second guide portion 613 is connected to the pressing portion 611. A third support portion 421 is provided on the side of the door panel 42 adjacent to the decorative panel 41. The third support portion 421 is flat and has a guide hole provided on the third support portion 421. An elastic member is sleeved around the outer periphery of the second guide portion 613 and abuts between the first locking portion 612 and the third support portion 421.

[0107] A third limiting portion 422 and a limiting groove 614 are disposed relative to the first latch 61 and the door panel assembly 4. The third limiting portion 422 is received in the limiting groove 614 and is slidable within the limiting groove 614. The third limiting portion 422 and the limiting groove 614 guide the movement of the first latch 61 and define the locking and release positions of the first latch 61. Furthermore, the length of the limiting groove 614 can determine the pressing stroke and the return stroke of the first latch 61. For example, the limiting groove 614 includes a bottom end and a top end. When the first latch 61 is pressed downward, the third limiting portion 422 slides within the limiting groove 614 toward the bottom end until the third limiting portion 422 slides to the bottom end, at which point the first latch 61 can no longer be pressed. When the pressing force is released, the elastic member drives the third limiting portion 422 to slide within the limiting groove 614 toward the top end until the third limiting portion 422 slides to the top end, at which point the sliding stops. In the embodiment of the present application, the third limiting portion 422 is located on the door panel 42 , and the limiting groove 614 is located on the first latch 61 .

[0108] The specific positions of the second guide portion 613, guide hole, third limiting portion 422 and limiting groove 614 mentioned in the present application can be set according to the specific shape of the pressing portion 611 and the specific structure inside the door panel 42. In the embodiment set in the present application, the second guide portion and the guide hole are located below the pressing portion 611, and the third limiting portion 422 and the limiting groove 614 are provided on both sides of the pressing portion 611, and the third limiting portion 422 and the limiting groove 614 are located below the pressing portion 611.

[0109] The second latching member 63 includes a second latching portion. The second latching portion can be L-shaped or hook-shaped. A second locking groove is formed between the first latching portion 612 and the front panel assembly 5. The notch of the second locking groove is arranged toward the first latching member 61 and is used to engage with the first latching portion 612. Specifically, in the present application, the notch of the first locking groove faces upward, while the notch of the second locking groove faces downward. When the first latching member 61 and the second latching member 63 are engaged with each other, the first latching portion 612 is located within the second locking groove, and the second latching portion is located within the first locking groove.

[0110] The second fastener 63 and the front panel assembly 5 can be separated or integrated. The separated arrangement can simplify the production process of the second fastener 63 and the front panel assembly 5, while the integrated arrangement can enhance the strength of the second fastener 63 and the front panel assembly 5. In the embodiment of the present application, the second fastener 63 and the front panel assembly 5 are separated.

[0111] In an embodiment in which the second fastener 63 and the front panel assembly 5 are separately arranged, the front panel assembly 5 is provided with a mounting groove 236, the second fastener 63 is arranged in the mounting groove 236, the first side of the second fastener 63 is located on the side of the front panel assembly 5 close to the middle frame assembly 2, the first side of the second fastener 63 is provided with a bolt, and the connection between the second fastener 63 and the front panel assembly 5 is achieved by the bolt, and the second fastener portion is located on the second side of the second fastener 63 away from the middle frame assembly 2.

[0112] A sealed cavity J is formed between the side wall of the front panel assembly 5 away from the door panel assembly 4 and the second fastener 63. A seal is provided in the sealed cavity J. The seal is used to seal the gap between the second fastener 63 and the front panel assembly 5. The setting of the seal can enable the water purification equipment to reach the IPX4 waterproof level.

[0113] Referring again to FIG. 15 , the filter element disassembly and assembly device further includes a drive assembly 7 . Two drive assemblies 7 are provided, one on the left and one on the right side of the filter element 3 . The drive assembly 7 passes through the front panel assembly 5 and is capable of sliding relative to the front panel assembly 5 . The drive assembly 7 is movably connected to the front panel assembly 5 and is configured to at least partially engage with the filter element 3 . The drive assembly 7 is used to drive the filter element 3 to move at the second opening H. Specifically, the drive assembly 7 includes a pull rod 71 , a slider 72 , and a guide groove 73 . One end of the pull rod 71 is movably connected to the decorative plate 41 via a pin and a pin hole. The other end of the pull rod 71 extends through a through hole in the front panel assembly 5 into the middle frame assembly 2 . The slider 72 is provided on one side of the pull rod 71 . The guide groove 73 is composed of a first groove provided in the middle frame assembly 2 and a second groove provided in the front panel assembly 5 . The slider 72 is accommodated in the guide groove 73 and is capable of sliding within the guide groove 73 .

[0114] Furthermore, as shown in FIG3 , the middle frame body 21 is provided with an escape space 27 and a connecting groove 28 . The drive assembly 7 is provided in the escape space 27 . The connecting groove 28 is used to connect the escape space 27 and the accommodating space A, so that the drive assembly 7 can at least partially contact the filter element 3 through the connecting groove 28 . Specifically, the drive assembly 7 also includes a first pushing portion 74 and a second pushing portion 75 that are arranged opposite to each other. The filter element 3 is provided with a mating portion on the periphery thereof, and the mating portion is located between the first pushing portion 74 and the second pushing portion 75 . As shown in FIG14 , the mating portion includes a first mating surface 324 and a second mating surface 325 that are arranged opposite to each other. The first mating surface 324 is used to contact the first pushing portion 74 , and the second mating surface 325 is used to contact the second pushing portion 75 . When the locking cam 73 is in the unlock position, the filter element 3 can be unlocked by loosening the locking cam 73. When the locking cam 73 is unlocked, the filter element 3 can be unlocked by loosening the locking cam 73.

[0115] As shown in Figure 19, the front panel assembly 5 includes a front panel body 51, a positioning member 52, a support member 53, a second fixing member 54, and a light-transmitting member. The front panel body 51 is plate-shaped and connected to the outer shell 1 and the middle frame assembly 2. A second opening H for the filter element 3 to enter and exit is formed in the front panel body 51. The water purification device also includes a main circuit board / main PCB 50. The front panel body 51 includes a fifth mounting position for mounting the main circuit board 50. A positioning member 52, a support member 53, a second fixing member 54, and a light-transmitting member are all arranged on the side of the front panel body 51 near the middle frame assembly 2. The positioning member 52 is used to position the main circuit board 50 to the fifth mounting position before installation, which can avoid holding the main circuit board 50 and facilitate the fixing of the main circuit board 50. The support member 53 is used to support the main circuit board 50, so that there is a certain distance between the main circuit board 50 and the front panel body 51, which can avoid collision between the main circuit board 50 and the front panel body 51, and can also prevent the main circuit board 50 from being skewed during installation. The second fixing member 54 is used to fix the main circuit board 50 to the front panel body 51, which can prevent the main circuit board 50 of the device from shifting during the device movement. The main circuit board 50 is provided with a light-emitting portion, and the light-transmitting member is used to allow light from the light-emitting portion to be emitted from the front panel body 51.

[0116] As shown in Figure 20 , the positioning member 52 includes a bearing portion 521 and a stop portion 522. The bearing portion 521 is connected to the front panel body 51 and is used to support the main circuit board 50. The bearing portion 521 is provided with a positioning slot 523. The positioning slot 523 extends along the third direction Z, with the notch of the positioning slot 523 facing upward. The positioning slot 523 is used to allow the main circuit board 50 to be at least partially inserted, so that the main circuit board 50 can be positioned in a predetermined position after insertion. The stop portion 522 is connected to the bearing portion 521 and is in the shape of a plate or block. The stop portion 522 is used to support the edge of the main circuit board 50, thereby preventing the main circuit board 50 from shifting during installation.

[0117] In the embodiment of the present application, as shown in FIG19 , two positioning members 52 are provided. The two positioning members 52 are arranged opposite each other along a first direction. Providing two positioning members 52 can improve the stability of the main circuit board 50. The two retaining portions 522 of the two positioning members 52 are arranged opposite each other. After the main circuit board 50 is inserted into the positioning slot 523, the two retaining portions 522 are located on either side of the main circuit board 50.

[0118] In other embodiments, the positioning member 52 may include a bearing portion 521 and two retaining portions 522. The bearing portion 521 extends along the second direction Y, a positioning groove 523 is provided on the bearing portion 521, and the two retaining portions 522 are respectively provided on both sides of the bearing portion 521 along the second direction Y.

[0119] In other embodiments, the positioning member 52 can be provided with two bearing portions 521 and two resisting portions 522, wherein the two bearing portions 521 are spaced apart along the second direction Y, and each bearing portion 521 is provided with a positioning groove 523, which extends along the second direction Y, and the notches of the two positioning grooves 523 are arranged opposite to each other. In this embodiment, the two resisting portions 522 are respectively the side walls of the two positioning grooves 523 away from the notches.

[0120] All of the above embodiments can serve as positioning members of the present application. Of course, the configuration of the positioning members includes but is not limited to the above three methods, as long as they can position the main circuit board 50 .

[0121] Furthermore, a third guide portion 524 is provided at the end of the positioning groove 523 close to the circuit board. The third guide portion 524 is used to guide the circuit board to be inserted into the positioning groove 523. Specifically, the third guide portion 524 is provided in an inclined surface.

[0122] The first end of the support member 53 is fixedly connected to the front panel body 51, and the size of the second end of the support member 53 is smaller than that of the first end. Since the sizes of the two ends of the support member 53 are different, a step surface can be formed in the middle of the support member 53. After the main circuit board 50 is inserted into the positioning groove 523, it can be placed on the step surface. The step surface is used to support the main circuit board 50 so that a certain distance is maintained between the main circuit board 50 and the front panel assembly 5.

[0123] Furthermore, a plurality of support members 53 are provided, and the plurality of support members 53 are located above the positioning member, and the plurality of support members 53 are arranged at intervals along the edge of the circuit board.

[0124] The second fixing member 54 is provided with a mounting hole, which is used to match the fastener on the circuit board so that the circuit board can be fastened to the front panel body 51. Specifically, the mounting hole can be a threaded hole and the locking member can be a bolt.

[0125] As shown in Figures 21 and 22 , the light-transmitting element includes a light-transmitting hole and a light-collecting hole 551. The light-collecting hole 551 extends through the front panel body 51. The light-emitting portion on the main circuit board 50 is positioned corresponding to the light-transmitting hole, allowing light from the light-emitting portion to be emitted from the front panel body 51. The light-collecting hole 551 is located on the side of the front panel body 51 closest to the circuit board. The light-collecting hole 551 is coaxially connected to the light-transmitting hole and surrounds the light-emitting portion. The light-collecting hole 551 is used to focus the light beams to prevent interference between adjacent beams.

[0126] The light-transmitting hole includes a first hole portion 552 and a second hole portion 553. The first hole portion 552 is located between the second hole portion 553 and the light-collecting hole 551. The light beam emitted by the light-emitting portion sequentially passes through the light-collecting hole 551, the first hole portion 552, and the second hole portion 553 and is emitted outward. The diameters of the light-collecting hole 551, the first hole portion 552, and the second hole portion 553 decrease in sequence. In the thickness direction (front-to-back direction) of the front panel body 51, the size of the first hole portion 552 is larger than the size of the second hole portion 553. The second hole portion 553 is the end of the light-transmitting hole. Making the second hole portion 553 thinner facilitates direct light emission to the outside.

[0127] The present application does not impose any restrictions on the shape and size of the light-transmitting holes and the light-collecting holes 551. The skilled person in the art can set light-transmitting holes of different shapes and sizes according to actual conditions. For example, they can be square, circular, and other shapes. The present application does not impose any restrictions on the number of light-transmitting holes, light-collecting holes 551, and light-emitting parts. The skilled person in the present application can set them according to actual conditions as long as the number of light-transmitting holes, light-collecting holes 551, and light-emitting parts corresponds to each other. For example, two, three, four, and the like can be set. In the embodiment of the present application, the light-transmitting holes are circular, the light-collecting holes 551 are cylindrical, and the number of light-transmitting holes, light-collecting holes 551, and light-emitting parts are all three. The three light-emitting parts can respectively emit light of different colors, for example, yellow light, red light, and green light. Different colors can represent that the device is performing different operations. For example, yellow light can indicate that the device is filtering, red light can indicate that the device is discharging water, and green light can indicate that the device is on standby.

[0128] The present application positions the main circuit board 50 by setting a positioning groove 523. Preferably, the positioned circuit board and the front panel body 51 are parallel to each other, which is beneficial to saving the space occupied by the main circuit board 50 on the one hand; on the other hand, it is beneficial to the light diffusion of the light-emitting part: the light-emitting part emits a light beam from the main circuit board 50 to the front panel body 51 and finally emits it outward from the light-transmitting part. The distance between the light-emitting part and the light-transmitting part is the path of the light beam. After the main circuit board 50 is parallel to the front panel assembly 5, the distance between the light-emitting part and the light-transmitting part is the straight-line distance, which is also the shortest distance. In this way, the light beam can be emitted to the front panel body 51 along a shorter path, avoiding the problem of too much light beam being wasted between the light-emitting part and the light-transmitting part, resulting in very weak light transmitted from the light-transmitting part.

[0129] As shown in Figures 23 and 24 , the waterway plate 8 includes a waterway plate body 81, a connector 83, and a waterway check member 84. The waterway plate body 81 is provided with a water interface, and the connector 83 is disposed between the waterway plate body 81 and the filter element 3. The connector 83 is provided with a waterway plate water port that communicates with the water interface. The waterway plate water port is used to connect to the filter element water port. When the waterway plate water port is connected to the filter element water port, the filter element 3 and the waterway plate body 81 are connected. The waterway check member 84 is disposed in the waterway plate water port and is used to open or block the waterway plate water port.

[0130] The waterway plate body 81 and the connecting member 83 are detachably connected, for example, by bolts. If one of the waterway plate body 81 or the waterway check member in the connecting member 83 is damaged, the damaged portion can be selectively removed and replaced, while the undamaged portion remains on the original device. This effectively reduces production costs for the manufacturer and user costs.

[0131] The waterway plate body 81 includes a first plate body and a second plate body, and the first plate body is welded to the second plate body to form the waterway plate body 81. The opposing sides of the first plate body and the second plate body are both recessed with a plurality of mutually adapted process grooves. After the first plate body and the second plate body are welded, the process grooves on the two plates overlap with each other to form a plurality of channels within the waterway plate body 81. It is understood that welding is a widely used connection technology in the relevant art. When applied to the connection between the first plate body and the second plate body, it can effectively ensure the connection and sealing of the waterway plate body 81 and prevent water leakage of the waterway plate body 81. Of course, in other embodiments, the waterway plate body 81 can also be made of an integral molding.

[0132] The top of the waterway plate body 81 is equipped with a raw water inlet 811, a pure water inlet 812, and a waste water inlet 813. The raw water inlet 811 is used to connect to an external water source to deliver tap water to the waterway plate body 81. The pure water inlet 812 and the waste water inlet 813 are used to output pure water and waste water, respectively. The water interfaces include an inlet interface 814, a pure water interface 815, and a waste water interface 816. The waterway plate body 81 is internally formed with a raw water channel, a pure water channel, and a waste water channel. The raw water channel connects the raw water inlet 811 and the water inlet interface 814; the pure water channel connects the pure water inlet 812 and the pure water interface 815; and the waste water channel connects the waste water inlet 813 and the waste water interface 816. The waterway plate is provided with three water inlets, namely the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833. The water inlet interface 814 is connected to the fourth inlet 831, the pure water interface 815 is connected to the fourth outlet 832, and the waste water interface 816 is connected to the fifth outlet 833. Specifically, external water enters the waterway plate body 81 from the raw water inlet 811. The raw water flows through the raw water waterway channel, the water inlet interface 814, the fourth inlet 831, and the water inlet 321 in sequence before entering the filter element 3. The pure water generated after being filtered by the filter element 3 flows through the pure water outlet 322, the fourth outlet 832, the pure water interface 815, the pure water waterway channel in sequence before being output from the pure water inlet 812. The waste water generated after being filtered by the filter element 3 flows through the waste water outlet 323, the fifth outlet 833, the waste water interface 816, the waste water waterway channel in sequence before being output from the waste water outlet 813.

[0133] The waterway plate body 81 is also equipped with a booster pump inlet 817 and a booster pump outlet 818. The booster pump 230 is connected between the inlet 817 and the outlet 818 of the booster pump 230. The raw water channel includes a first water channel K connecting the raw water inlet 811 and the inlet 817 of the booster pump 230, and a second water channel L connecting the booster pump outlet 818 and the water inlet port 814. A first detector 85 is provided on the first water channel K, which is used to detect the TDS value of the external water source. A first valve 86 is also provided on the first water channel K, connected to the first water channel K through a first inlet 819 and a first outlet 820. The first valve 86 is used to control the opening and closing of the first water channel K. In actual use, the raw water passes through the raw water port 811 and flows through the first water channel K, the first inlet 819, the first valve 86, the first outlet 820, the booster pump 230 and the second water channel L in sequence, and finally flows into the filter element 3 through the water inlet interface 814.

[0134] The pure water channel includes a third water channel M connecting the pure water port 812 and the pure water interface 815. A second detection member 87 and a second valve member 88 are provided on the third water channel M. The second detection member 87 is used to detect the TDS value of the pure water. The second valve member 88 is connected to the third water channel M via a second inlet 821 and a second outlet 822. The second valve member 88 is used to control the on / off state of the third water channel M. In actual use, pure water flows through the pure water interface 815, sequentially through the third water channel M, the second inlet 821, the second valve member 88, and the second outlet 822, before finally flowing out through the pure water port 812.

[0135] In some embodiments, a high-pressure switch is further provided on the third water channel M. The high-pressure switch is provided near the pure water inlet 812 and is used to control the pressure of the pure water output.

[0136] A third valve 89 is installed in the wastewater channel, connected to the channel via a third inlet 823 and a third outlet 824. This valve 89 controls the flow of wastewater. In actual use, wastewater flows through the wastewater channel via the wastewater interface 816, the third inlet 823, the third valve 89, and the third outlet 824, before ultimately exiting through the wastewater port 813.

[0137] The water inlets of the waterway plate are arranged correspondingly to the water inlets of the filter element. Specifically, the fourth inlet 831 is connected to the water inlet 321 , the fourth outlet 833 is connected to the pure water outlet 322 , and the fifth outlet 833 is connected to the waste water outlet 323 .

[0138] As shown in FIG. 25 , three waterway check members 84 are provided, corresponding to the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833, respectively. It is understood that the three waterway check members 84 operate synchronously, i.e., simultaneously opening the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833, or simultaneously blocking the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833. The following description of the waterway check member 84 will use the fifth outlet 833 as an example. The waterway check members 84 in the fourth outlet 832 and the fourth inlet 831 have substantially the same functions and effects as the waterway check member 84 in the fifth outlet 833, and will not be further described.

[0139] The fifth outlet 833 includes a third opening, a side wall, and a bottom wall arranged in sequence. The third opening is arranged toward the filter element 3, and the bottom wall is arranged toward the water interface. The waterway check member 84 includes a second blocking portion 841, a pushing portion 842, and a second elastic portion 843. The second blocking portion 841 is annular, and the inner ring of the second blocking portion 841 is fixedly sleeved on one end of the pushing portion 842, and the outer ring of the second blocking portion 841 matches the bottom wall; the other end of the pushing portion 842 extends outside the third opening, and the second elastic portion 843 abuts between the pushing portion 842 and the side wall. The second elastic portion 843 is used to apply a driving force to the pushing portion 842, so that the pushing portion 842 moves toward the direction close to the filter element 3 until the second blocking portion 841 can conflict with the bottom wall, thereby achieving the function of blocking the fifth outlet 833.

[0140] The pushing portion 842 includes a blocking position and a conducting position. Specifically, the blocking position is the position where the second blocking portion 841 conflicts with the bottom wall, and the conducting position is the position where the second blocking portion 841 is separated from the bottom wall. Furthermore, the pushing portion 842 is configured to be able to move from the conducting position to the blocking position under the action of the second elastic portion 843, so that the second blocking portion 841 can conflict with the bottom wall to block the fifth outlet 833; the pushing portion 842 is also configured to be able to move from the blocking position to the conducting position under the action of the filter element 3, so as to enable conduction between the fifth outlet 833 and the filter element 3.

[0141] The following describes the states and positions of the filter element 3 and the waterway plate 8 when they are not assembled, when they are just in contact, and during assembly:

[0142] When the filter element 3 and waterway plate 8 are not assembled, they are relatively independent. The first blocking portion 392 in the filter element 3 is in a blocking position due to the force of the elastic member, forming a seal and preventing water from flowing out of the filter element 3. The pushing portion 842 and second blocking portion 841 in the waterway plate 8 are in a blocking position due to the force of the second elastic portion 843, also forming a seal and preventing water from flowing out of the waterway plate 8.

[0143] When the filter element 3 and the waterway plate 8 just come into contact, their respective seals are still in effect. At this time, the water inlet of the waterway plate has been inserted into the water inlet of the filter element. Through the setting of the second sealing part 394, a seal is formed between the filter element 3 and the waterway plate 8, thereby preventing water leakage during the subsequent assembly process.

[0144] As shown in Figure 26, during the assembly process of the filter element 3 and the waterway plate 8, the pushing part 842 squeezes the first blocking part 392, so that the first blocking part 392 moves from the blocking position to the conducting position, and the water outlet of the filter element is now conducted; at the same time, the pushing part 842 is subjected to a reaction, and the pushing part 842 squeezes the second elastic part 843 and moves from the blocking position to the conducting position, and the water outlet of the waterway plate is now conducted, until the assembly of the filter element 3 and the waterway plate 8 is completed.

[0145] As shown in FIG27 , the waterway plate 8 further includes a sealing member 801, which is disposed between the waterway plate body 81 and the connector 83. The sealing member 801 is used to seal the gap between the waterway plate body 81 and the connector 83. The sealing member 801 may be a sealing ring. In the present application, three sealing members 801 are provided, corresponding to the positions of the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833. Referring again to FIG10 and FIG23 , the waterway plate 8 further includes a plate 802, which is disposed on the periphery of the connector 83 and is detachably connected to the waterway plate body 81. The plate 802 and the connector 83 may be separate or integral. Preferably, the plate 802 and the connector 83 are separate, which facilitates separate disassembly and maintenance of the plate 802 and the connector 83.

[0146] The water purification device also includes an identification component for identifying the filter element 3 that matches the waterway plate 8. The identification component includes a first identification member 803 and a second identification member 326. The first identification member 803 and the second identification member 326 match each other and are arranged relative to each other on the plate 802 and the filter cartridge 32. Specifically, the first identification member 803 and the second identification member 326 can be a hole or column structure. During the actual installation of the filter element, only when the first identification member 803 and the second identification member 326 match each other in position and shape can the filter element 3 and the waterway plate 8 be connected.

[0147] The user or the merchant can configure the stagnant water channel structure 9 according to actual needs. For example, if the stagnant water channel structure 9 is not required, then only the water channel plate 8 is provided in the water purification device. In this case, no other interfaces are required on the water channel plate body 81 other than the interfaces described above to connect to the stagnant water channel structure 9. It is understood that if the stagnant water channel structure 9 is required, other interfaces (the pure water outlet hole 825, the return water inlet 826, and the drain water inlet 827 described below) are required on the water channel plate body 81 in addition to the interfaces described above to connect to the stagnant water channel structure 9. The stagnant water channel structure 9 is detachably connected to the water channel plate 8, for example, by bolting the stagnant water channel structure 9 to the water channel plate 8.

[0148] In the embodiment in which the Chenshui water channel structure 9 is detachably connected to the water channel plate 8, the water channel plate 8 can be equipped with a blocking piece, which is used after the Chenshui water channel structure 9 is disassembled. Specifically, when the Chenshui water channel structure 9 is disassembled, the interface on the water channel plate 8 connected to the Chenshui water channel structure 9 is sealed by the blocking piece, thereby preventing water in the water channel plate 8 from flowing out, thereby ensuring that the water channel plate 8 can be used normally after the Chenshui water channel structure 9 is disassembled.

[0149] The water channel structure 9 includes a main plate body. The main plate body comprises a third plate body and a fourth plate body, with the third plate body welded to the fourth plate body to form the main plate body. Opposite sides of the third and fourth plates are recessed with multiple, mutually compatible process grooves. After welding, the process grooves on the third and fourth plates overlap to form multiple flow channels within the main plate body.

[0150] As shown in Figures 24 and 28, the main body of the Chenshui plate is provided with a pure water inlet 91, a return water outlet 92 and a drainage outlet 93. The multiple flow channels in the main body of the Chenshui plate include a pure water inlet channel, a return water outlet channel N and a drainage outlet channel O. The waterway plate main body 81 is provided with a pure water outlet hole 825, a return water inlet 826 and a drainage inlet 827; specifically, the pure water outlet hole 825 is connected to the pure water inlet channel through the pure water inlet 91, the return water inlet 826 is connected to the return water outlet channel N through the return water outlet 92, and the drainage inlet 827 is connected to the drainage outlet channel O through the drainage outlet 93.

[0151] Furthermore, the pure water inlet flow channel includes a first branch P and a second branch Q. The first branch P is used to connect the pure water inlet 91 and the return water outlet flow channel N, and the second branch Q is used to connect the pure water inlet 91 and the drainage outlet flow channel O.

[0152] Furthermore, the Chenshui water channel structure 9 also includes a return water solenoid valve and a drain solenoid valve. The return water solenoid valve is connected to the first branch P through the sixth inlet 94, and the return water solenoid valve is connected to the return water outlet channel N through the sixth outlet 95; the drain solenoid valve is connected to the second branch Q through the seventh inlet 96, and the drain solenoid valve is connected to the drain outlet channel O through the seventh outlet 97.

[0153] When the stale water channel structure 9 is actually used, it means that the water purification equipment has been standing for a period of time. Due to the phenomenon of osmosis, the TDS value of the pure water will increase after standing for a period of time, affecting the taste and hygiene of the first cup of water. At this time, the pure water is no longer pure water with a qualified TDS value. To solve the aforementioned problem, the pure water channel of the present application also includes a fourth water channel R, which is used to connect the pure water interface 815 and the pure water outlet 825; the water channel body 81 is also provided with a fifth water channel S, which is used to connect the return water inlet 826 and the first water channel K; and the drainage inlet 827 is connected to the wastewater channel.

[0154] After standing, the pure water flows out from the pure water interface 815 and flows through the fourth water channel R, the pure water outlet 825, the pure water inlet 91 and the pure water inlet channel in sequence. Then part of the pure water flows away from the first branch P. This part of the pure water can be re-filtered through the filter element 3 and reused. The other part flows away through the second branch Q. The TDS value of this part of pure water is unqualified and can be discharged as waste water. Specifically, the pure water in the first branch P flows through the sixth inlet 94, the return water solenoid valve, the sixth outlet 95, the return water outlet channel N, the return water outlet 92, the return water inlet 826, the fifth water channel S and the second water channel L in sequence, and finally flows into the filter element 3 again through the water inlet interface 814 for re-filtration; the pure water in the second branch Q flows through the seventh inlet 96, the drain solenoid valve, the seventh outlet 97, the drain outlet channel O, the drain outlet 93, the drain inlet 827 and the wastewater waterway in sequence, and finally is output to the outside through the wastewater outlet 813.

[0155] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0156] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0157] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0158] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A water purification device comprising: filter element; A middle frame assembly, comprising a receiving space for receiving the filter element; A front panel assembly is provided at one end of the middle frame assembly, the front panel assembly comprising an opening communicating with the accommodation space, the opening being used for allowing the filter element to enter and exit; a door panel assembly, movably connected to the front panel assembly, the door panel assembly being used to block the opening or connect the opening to the external space; and A waterway plate is provided at one end of the middle frame assembly away from the front panel assembly and is connected to the filter element. The waterway plate is used for transmitting water.

2. The water purification device according to claim 1, wherein: The middle frame assembly includes a middle frame body, the middle frame body includes a first mounting surface and a second mounting surface arranged opposite to each other, and the middle frame body is configured with at least one of a first mounting position, a second mounting position, a third mounting position, and a fourth mounting position; The first mounting position is set on the first mounting surface or the second mounting surface, the second mounting position is set on the first mounting surface, the third mounting position is set on the second mounting surface, and the fourth mounting position is set on the first mounting surface and is located between the second mounting position and the third mounting position.

3. The water purification device according to claim 2, wherein: The middle frame assembly further includes an identification module, which is disposed at the first installation position and is used to identify the filter element.

4. The water purification device according to claim 3, wherein: The filter element is provided with an anti-counterfeiting identification component, and the identification module is provided corresponding to the anti-counterfeiting identification component.

5. The water purification device according to claim 3, wherein: The middle frame assembly further includes a barrier member, which is disposed between the first installation position and the second installation position and is used to prevent water from contacting the identification module.

6. The water purification device according to claim 2, wherein: The middle frame assembly further includes a boost pump module, which is disposed at the second installation position and connected to the waterway plate.

7. The water purification device according to claim 6, wherein: The middle frame assembly further includes an adapter module, which is disposed at the fourth installation position and connected to the boost pump module. The boost pump module and the adapter module are arranged in the same direction.

8. The water purification device according to claim 2, wherein: The middle frame assembly further includes a water leakage detection module, and the water leakage detection module is arranged at the third installation position.

9. The water purification device according to claim 1, wherein: A fifth mounting position is provided on one side of the front panel assembly close to the middle frame body, and the fifth mounting position is used to mount the main circuit board.

10. The water purification device according to claim 9, wherein: The middle frame assembly further includes a wire receiving member, which is used to fix the wires connected between the main circuit board and the waterway board.

11. The water purification device according to claim 1, wherein: The filter element includes an end cover, a filter cartridge and a separator, the filter cartridge is sealed with the end cover, a top cover and a middle seat are provided in the filter cartridge, the top cover is sealed with the middle seat, and the middle seat is provided with a first water outlet; the separator is provided in the middle seat and is gap-fitted with the middle seat, a first chamber is formed between the separator and the top cover, the first chamber is configured to be able to communicate with the external space, a first filter element is provided in the first chamber, a first flow channel is formed between the separator and the middle seat, and the first water outlet is communicated with the first chamber through the first flow channel.

12. The water purification device according to claim 11, wherein: The partition comprises a communication port, the communication port being used to connect the first flow channel and the first chamber, and the communication port is not coaxial with the first water outlet.

13. The water purification device according to claim 12, wherein: The top cover is provided with a second water outlet, the end of the filter cartridge away from the end cover is provided with a pure water outlet, the first chamber is connected with the pure water outlet through the second water outlet, and the second water outlet is coaxially arranged with the first water outlet.

14. The water purification device according to claim 12, wherein: The separator includes a connecting portion, a first extension portion, a second extension portion and a third extension portion connected in sequence, the connecting portion and the second extension portion are parallel to each other, the first extension portion and the third extension portion are parallel to each other, the connecting portion is perpendicular to the first extension portion, the first extension portion is perpendicular to the second extension portion, and the connecting port is provided in the first extension portion.

15. The water purification device according to claim 11, wherein: The filter element further includes a stopper, which is disposed at the first water outlet and is configured to prevent the filter material in the first filter element from entering the first water outlet.

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