TWI885851B - Water purification equipment - Google Patents

Abstract

The present invention relates to 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, and the accommodating space 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 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 far away from the front panel assembly and is connected to the filter element, and the waterway plate is used to transmit water. These arrangements can improve the space utilization of the water purification equipment, make the structure compact, and help reduce the overall volume of the water purification equipment; the overall equipment assembly is simple, which effectively reduces the assembly time and improves the assembly efficiency.

Description

Water purification equipment

The present invention relates to the field of water purification technology, and in particular to a water purification device.

As people's quality of life improves, more and more people begin to pay attention to health. Water is an indispensable substance in life, so naturally water purifiers and their water quality have also received widespread attention. Water purifiers are also called water purifiers and water purifiers. Water purifiers are water treatment equipment that deeply filters and purifies water according to water usage requirements. The core technology is the filter membrane in the filter element device. The main technology comes from ultrafiltration membrane, RO reverse osmosis membrane and nanofiltration membrane. Water purifiers are not only suitable for areas with serious tap water pollution, but also for household kitchen water purification. They can filter residual chlorine in tap water and improve the taste of water.

The water purifier contains various structures and devices. In the prior art, the position distribution and installation method of these structures and devices will lead to problems such as complicated disassembly and assembly, difficult assembly, and large equipment volume. Therefore, how to reasonably plan the position distribution of various structures and devices in the water purifier is one of the issues that technicians in this field need to consider.

Based on this, it is necessary to provide a water purification device to address the problems of existing water purifiers, such as complex disassembly and assembly, difficult assembly, and large equipment volume.

The present invention 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, and the accommodating space 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 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 far away from the front panel assembly and is connected to the filter element, and the waterway plate is used to transmit water.

In one embodiment, the middle frame assembly includes a middle frame body, the middle frame body includes a first mounting surface and a second mounting surface arranged relatively 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 arranged on the first mounting surface or the second mounting surface, the second mounting position is arranged on the first mounting surface, the third mounting position is arranged on the second mounting surface, and the fourth mounting position is arranged on the first mounting surface and is located between the second mounting position and the third mounting position.

In one embodiment, the middle frame assembly further includes an identification module, which is disposed at the first mounting position and is used to identify the filter element.

In one embodiment, an anti-counterfeiting label is provided on the filter element, and the identification module is provided corresponding to the anti-counterfeiting label.

In one embodiment, the middle frame assembly further includes a barrier member, which is disposed between the first mounting position and the second mounting position, and is used to prevent water from contacting the identification module.

In one embodiment, the middle frame assembly further includes a booster pump module, which is disposed at the second mounting position and connected to the waterway plate.

In one of the embodiments, the middle frame assembly further includes an adapter module, which is disposed at the fourth mounting position and connected to the booster pump module, and the booster pump module and the adapter module are arranged in the same direction.

In one embodiment, the middle frame assembly further includes a water leakage detection module, and the water leakage detection module is arranged at the third installation position.

In one embodiment, 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 mount the main circuit board.

In one embodiment, 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 water circuit board.

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 whole water purification equipment can be improved, the structure can be compacted, 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.

In order to make the above-mentioned purposes, features and advantages of the present invention more clearly understandable, the specific implementation of the present invention is described in detail below in conjunction with the attached drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it is necessary to understand that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the directions or positional relationships indicated by these terms are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

Referring to FIG1 , an embodiment of the present invention provides a water purification device, which is used to filter tap water and can remove harmful substances in tap water, thereby ensuring the safety of drinking water. The water purification device is suitable for various places with water purification needs. Preferably, the water purification device of the present invention is an under-the-sink water purifier applied to a family kitchen.

As shown in FIG2 , the water purification device 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 storage water channel structure 9, and an end plate 10. The outer shell 1 serves as the outer shell of the entire water purification device and plays a role in protecting the internal components and structures. The outer shell 1 has an installation space inside, and the installation space is used to install the middle frame assembly 2. The middle frame assembly 2 has a storage space A inside, and the storage space A is used to store the filter element 3. The filter element 3 is used to filter the external water source/raw water. One end of the housing 1 has a first mounting port, and the first mounting port is used to install a filter element disassembly device, and the filter element disassembly device is at least partially connected to the middle frame assembly 2, and the filter element disassembly 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, and the second mounting port is used to install a waterway plate 8, and 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 pure water and waste water generated after filtering by the filter element 3 to the outside. The water channel structure 9 is detachably connected to the water channel plate 8, and is used to control the TDS value of water (TDS value is a technical term, its full name is total dissolved solids, and the measurement unit is milligrams per liter, which indicates how many milligrams of dissolved solids are dissolved in 1 liter of water) within the qualified range. The end plate 10 is also assembled at the second mounting port, and the end plate 10 is located on the side of the water channel plate 8 away from the middle frame assembly 2.

The present invention uses a first direction X, a second direction Y, and a third direction Z. The three directions are described here and will not be repeated below. 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. For example, facing the water purification device, the first installation port faces forward, the filter element disassembly device is located at the front end of the water purification device, the second installation port faces backward, and the waterway plate 8 is located at the rear end of the water purification device, that is, the filter element disassembly device and the waterway plate 8 are respectively arranged at the two ends of the outer shell 1 along the second direction Y.

The following will describe the middle frame assembly 2, the filter element 3, the filter element disassembly and assembly device, the water channel plate 8 and the water storage water channel structure 9 in turn.

As shown in FIG3 , the middle frame assembly 2 includes a middle frame body 21, both ends of which are open, and the middle frame body 21 is used to provide support and installation positions for other components. The middle frame body 21 is extended 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 arranged 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 disclosed in the present invention, the guide groove 211 is located in the middle frame body 21, and the first guide portion is located outside the filter element 3.

The middle frame body 21 includes a first mounting surface and a second mounting surface which are relatively arranged 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 arranged on the first mounting surface or the second mounting surface, the second mounting position 213 is arranged on the first mounting surface, the third mounting position 214 is arranged on the second mounting surface, and the fourth mounting position 215 is arranged on the first mounting surface and is located between the second mounting position 213 and the third mounting position 214. The installation positions are arranged to facilitate the installation of modules and components.

Furthermore, in combination with FIG. 3 and FIG. 4, the middle frame assembly 2 further 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 arranged at the first mounting position 212, and the identification module 22 is used to identify the filter element 3; the booster pump module 23 is arranged at the second mounting position 213, and the booster pump module 23 is used to connect with the waterway plate 8; the water leakage detection module Group 24 is arranged at the third installation position 214, and the water leakage detection module 24 is used to detect whether the equipment is leaking; the adapter module 25 is arranged at the fourth installation position 215, and the adapter module 25 is connected to the booster pump module 23. Of course, the adapter module 25 is also connected to other electrical components that need to be powered. The adapter module 25 is used to adapt the power supply voltage to the voltage range required for the normal operation of the water purification equipment.

In the embodiment disclosed in the present invention, 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 .

The first mounting position 212 is disposed on a side of the middle frame body 21 close to the filter element disassembly and assembly device. Furthermore, the first mounting position 212 can be disposed at any position of the first mounting surface/the second mounting surface, as long as the identification module 22 can correspond to the anti-counterfeiting label on the filter element 3. In the embodiment disclosed in the present invention, the identification module 22 is located on the first mounting surface.

As shown in FIG5 , the identification module 22 includes an RFID PCB board 221 and a first mounting member. The RFID PCB board 221 can identify and read the information in the NFC anti-counterfeiting label on the filter element 3. The first mounting member is used to mount the RFID PCB board 221 to the first mounting surface. The first mounting member includes a positioning portion 222, a first supporting portion 223 and a first fixing portion 224. The positioning portion 222, the first supporting portion 223 and the first fixing portion 224 are all arranged on the middle frame body 21. The RFID PCB board 221 is provided with a positioning hole 225. The positioning portion 222 can penetrate the positioning hole 225 to position the RFID PCB board 221 to the first mounting position 212; the first supporting portion 223 is provided with a supporting boss, and the supporting boss is used to support the outer edge of the RFID PCB board 221. The supporting boss can keep a certain distance between the RFID PCB board 221 and the middle frame body 21, thereby preventing the RFID PCB board 221 from colliding with the middle frame body 21; 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.

As shown in FIG. 6 and FIG. 7 , the booster pump module 23 includes a booster pump 230, a bracket 231 and a shock absorbing unit 232. The booster pump 230 is connected between the booster pump inlet 817 and the booster pump outlet 818 of the waterway plate 8; the bracket 231 is arranged below the booster pump 230, and the bracket 231 is used to support the booster pump 230. The bracket 231 and the booster 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 the shock absorbing unit 232 is used to install the booster pump 230, and at the same time, it is also used to buffer the vibration generated by the booster pump 230.

In the embodiment disclosed in the present invention, 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. Of course, three, four, five, etc. shock absorbing units 232 can also be provided.

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, and the shock absorbing member 233 is used to absorb the energy generated when the boost pump 230 vibrates; the housing 234 covers the outer periphery of the shock absorbing member 233, and the housing 234 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 the first fixing member 235 is used to fix the housing 234 and the shock absorbing member 233 on the middle frame body 21.

The shock absorbing member 233 includes a mounting groove 236 and at least one shock absorbing hole 237. The mounting groove 236 is extended along the second direction Y, the notch of the mounting groove 236 faces the bracket 231, the mounting groove 236 matches the shape of the bracket 231, and the bracket 231 is inserted into the mounting groove 236 through the notch; the shock absorbing hole 237 is used to reduce the vibration impact transmitted from the boost pump 230 to the middle frame. When actually installing the boost pump 230, the bracket 231 is inserted into the installation groove 236, and then the outer shell 234 is covered on the outside of the shock absorber 233, and finally the outer shell 234 and the shock absorber 233 are fixed by the first fixing member 235, so that the installation of the boost pump 230 is quickly completed; when the boost pump 230 is running, the vibration energy generated can be absorbed by the shock absorber 233 and the shock absorber hole 237.

The shock absorbing member 233 is made of elastic material, for example, the shock absorbing member 233 can be made of rubber, polymer, etc.

There is no limit to the number of the shock absorbing holes 237 , and one, two, three, etc., may be provided. The more the shock absorbing holes 237 are, the better the shock absorbing effect on the boost pump 230 is.

The mounting groove 236 is located in the middle of the shock absorbing hole 237. The shock absorbing member 233 is divided into a first area 238 and a second area 239 with the mounting groove 236 as the center. The first area 238 is arranged on a side of the mounting groove 236 close to the middle frame, and the second area 239 is arranged on a side of the mounting groove 236 far from the middle frame. In some embodiments, the shock absorbing hole 237 may be arranged only in the first area 238. Most of the vibration generated by the booster pump 230 will be transmitted to the middle frame body 21. Therefore, only arranging enough shock absorbing holes 237 on the side of the shock absorbing member 233 close to the middle frame body 21 can also meet the shock absorption requirements. In the embodiment disclosed in the present invention, the first area 238 and the second area 239 are both provided with shock-absorbing holes 237, which is beneficial to improving the shock-absorbing effect of the shock-absorbing member 233.

In the embodiment where the first area 238 and the second area 239 are both provided with the shock absorbing holes 237, further, the first area 238 and the second area 239 include the same number of shock absorbing holes 237; or, the first area 238 includes more shock absorbing holes 237 than the second area 239; more shock absorbing holes 237 are provided in the first area 238 to better dampen the vibration transmitted from the boost pump 230 to the middle frame body 21. Further, the shock absorbing holes 237 in the first area 238 and the second area 239 are arranged along the second direction Y.

Both ends of the shock absorbing member 233 and the outer shell member 234 are provided with through holes, and the first fixing member 235 fixes the outer shell member 234 and the shock absorbing member 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.

As shown in reference 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 water circuit board 8. Of course, it can also be arranged below the booster pump 230. When the booster pump 230 or the water circuit 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 detect the water leakage of the device at the first time, and then take timely protection. It is understandable that water leakage in other places within the water purification device can also be detected by the leakage circuit board 241.

The water leakage detection module 24 also includes a second mounting member, and the second mounting member 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-on portion 243, the second fixing portion 242 and the elastic snap-on portion 243 are arranged at intervals, and the second fixing portion 242 and the elastic snap-on portion 243 are used to fix the leaky circuit board 241. Furthermore, the second fixing portion 242 is provided with a first groove, and the first groove faces the elastic snap-on portion 243. When installing the leaky circuit board 241, one side of the leaky circuit board 241 is first inserted into the first groove, and at this time, the other side of the leaky circuit board 241 is placed on the elastic snap-on portion 243. Pressing the leaky circuit board 241 to place it on this side of the elastic snap-on portion 243 can make the leaky circuit board 241 snap into the gap between the elastic snap-on portion 243 and the middle frame body 21. The second mounting member replaces the traditional mounting method of fixing the leaky circuit board 241 with bolts, which can greatly shorten the installation time. At the same time, due to the elastic design of the elastic buckle part 243, it is more convenient to replace the leaky circuit board 241. The leaky circuit board 241 can be removed from it by simply applying force to the elastic buckle part 243 outward, making it easier to replace the leaky circuit board 241.

The second mounting member further includes a second supporting portion 244 and a first limiting portion 245, and the second supporting portion 244 is connected to the first limiting portion 245. Preferably, two second supporting portions 244 and two first limiting portions 245 are provided, and the two second supporting portions 244 and the two first limiting portions 245 are respectively located on both sides of the leaky circuit board 241. It can be understood that the upper surface of the second supporting portion 244 is substantially in the same plane as the first groove, so that the second supporting portion 244 can support the leaky circuit board 241 after the leaky circuit board 241 is inserted into the first groove. The first limiting portion 245 is L-shaped, and the first limiting portion 245 is used to limit the leaky circuit board 241 in the third mounting position 214, so that the leaky circuit board 241 will not shift after being installed.

Referring again to FIG. 3 and FIG. 4 , the adapter module 25 includes a power adapter 251 and a third mounting member, and the third mounting member 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, and the first mounting bracket 252 and the second mounting bracket 253 are arranged at intervals. The first mounting bracket 252 is used to fix the first end of the power adapter 251, and the second mounting bracket 253 is used to fix the second end of the power adapter 251. Specifically, the power adapter 251 can be fixed by bolts. Furthermore, the second mounting bracket 253 includes a plurality of mounting holes 254 arranged at intervals. The plurality of mounting holes 254 can be arranged to adapt to the sizes of different power adapters 251. When installing the power adapter 251, a suitable mounting hole 254 can be selected according to the length of the power adapter 251 for installation.

In the embodiment disclosed in the present invention, the first mounting bracket 252 and the second mounting bracket 253 are arranged at intervals along the second direction Y, so that the power adapter 251 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 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 the modules in the middle frame assembly 2, save the 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 compact.

The middle frame assembly 2 further includes a barrier 26, which is disposed between the identification module 22 and the booster 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 second barrier portion are respectively connected to the two ends of the second barrier portion, and extend toward the identification module 22, the first barrier portion, the second barrier portion, and the third barrier portion are surrounded to form a first mounting position 212, the first barrier portion, the second barrier portion, and the third barrier portion can prevent water from entering the first mounting position 212, thereby preventing water from contacting the identification module 22, and playing a waterproof role.

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 inside of the water purification equipment clean. 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.

As shown in Figures 9 to 12, the filter element 3 includes an end cap 31 and a filter cartridge 32. The end cap 31 is sealed and connected 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, and the installation of the filter element 3 and the waterway plate 8 is completed.

A top cover 33, a middle seat 34 and a bottom cover 35 are sequentially arranged in the filter cartridge 32 in the direction close to the end cover 31. The top cover 33 is sealedly connected to the middle seat 34, and the middle seat 34 and the bottom cover 35 are spaced apart. The top cover 33, the middle seat 34 and the base are used to provide support and installation positions for the components in the filter element 3 structure.

The filter cartridge 32 is provided with a filter core water inlet at one end away from the end cover 31, and the filter core water inlet is used to connect with the water channel plate water inlet. Specifically, the filter core water inlet is provided with three, namely, a water inlet 321, a pure water outlet 322 and a waste water outlet 323. The water inlet 321 is used to supply external water source into the filter core 3 structure, and the pure water outlet 322 and the waste water outlet 323 are used to output pure water and waste water to the water channel plate 8 respectively.

The filter element 3 further includes a separator 36. The separator 36 is disposed in the middle seat and is matched with the middle seat 34. A first chamber B is formed between the separator 36 and the top cover 33. The first chamber B is connected to the pure water outlet 322. A first filter element is disposed in the first chamber B. A first flow channel C is formed between the separator 36 and the middle seat 34. The middle seat 34 is provided with a first outlet 341. The first outlet 341 is connected to the first chamber B through the first flow channel C.

The spacer 36 and the middle seat 34 have a gap matching, and the setting of the gap matching can facilitate the assembly and disassembly of the spacer 36. It can be understood that the gap between the spacer 36 and the middle seat 34 will not be set too large, so that while facilitating the assembly of the spacer 36, it can also provide a stable support force for the first filter element. Furthermore, a block 342 is provided on the inner wall of the middle seat 34, and the end surface of the partition 36 away from the first water outlet 341 abuts against the block 342; further, the middle seat 34 is provided with a plurality of retaining ribs 343, and the plurality of retaining ribs 343 are arranged at intervals, and the retaining ribs 343 extend from the middle seat 34 toward the direction close to the first chamber B. In the embodiment disclosed in the present invention, the bottom surface of the middle seat 34 and the end surface of the first water outlet 341 are both provided with retaining ribs 343, and the block 342 and the retaining ribs 343 jointly play a role of limiting and fixing the partition 36, so as to limit the movement of the partition 36 relative to the middle seat 34.

The partition 36 is disposed 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 being dispersed, 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.

The partition 36 includes a communication port 361, which is used to connect the first chamber B and the first flow channel C. The communication port 361 is not coaxial with the first water outlet 341. Specifically, a plurality of communication ports 361 are provided, and the plurality of communication ports 361 are arranged circumferentially and spaced apart on the partition 36 with the first water outlet 341 as the center. After flowing out of the first water outlet 341, water flows through the first flow channel C, the communication port 361 and the first chamber B in sequence. Since the communication port 361 is not coaxial with the first water outlet 341 and is combined with the arrangement of the first flow channel C, water can diffuse outward in the first flow channel C relative to the first water outlet 341. At the same time, after passing through the communication port 361, the water can cover the first filter element in the first chamber B to a large extent, so that the first filter element is in full contact with the water.

Furthermore, the communication 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 far from the first water outlet 341, and the cut-off area from the first end to the second end gradually increases. This setting can also make most of the water diffuse to the outside, allowing the water to fully contact the first filter element.

Furthermore, the top cover 33 is provided with a second water outlet 331, and the first chamber B is connected with the pure water outlet 322 through the second water outlet 331, and the second water outlet 331 is coaxially arranged with the first water outlet 341. It is previously recorded that water diffuses outward through the first flow channel C and the connecting port 361, and 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 water in the first chamber B and the contact time with the first filter element, thereby effectively improving the filtering effect on water.

There are two ways to set the separator 36. One is to set the cross section of the separator 36 to be U-shaped, with the U-shaped opening facing upward; the other is to set the separator 36 to be an irregular 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 in order from 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, the first extension portion 363 is annular, and the communication port 361 is set 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. If the communication port 361 is provided on the third extension portion 365, water is very likely to flow directly from the middle of the first filter element, so that the water is not fully filtered and the function of the first filter element is not fully utilized. The arrangement of the present invention can solve this problem.

The filter element 3 also includes a stopper 37. The stopper 37 is arranged at the first water outlet 341, and is used to prevent the granular activated carbon in the first filter element from entering the first water outlet 341. There is a gap between the partition 36 and the inner wall of the middle seat 34. After the water purification device is used for a long time, the granular activated carbon will flow out of the gap. After flowing out of the gap, the granular activated carbon enters the first flow channel C and the first water outlet 341 in turn. By arranging 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 can be understood that the stopper 37 can prevent the granular activated carbon from entering the first water outlet 341, but will not prevent water from flowing out of the first water outlet 341. As for the stopper 37, it only needs to be able to achieve the above-mentioned function. In the embodiment disclosed in the present invention, the stopper 37 can be a non-woven fabric.

The first filter element includes two non-woven fabrics, one non-woven fabric is arranged on a side of the partition close to or far from the first flow channel, and the other non-woven fabric is arranged on a 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 invention, 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 arranged on the partition 36, and the welding ribs are distributed at circumferential intervals 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 the ultrasonic welding jig to fix the non-woven fabric on the partition 36.

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 disposed in the second chamber. The second flow channel D is located at the center of the second chamber and extends along the length direction of the filter cylinder 32. The end of the second flow channel D extends outside the second chamber and communicates with the first water outlet 341. The second filter element E is sleeved around the second flow channel D. In some embodiments, a third filter element is further disposed in the second chamber, and the third filter element is sleeved around the second filter element. In the embodiment disclosed in the present invention, 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 filtering, water passes through the third filter element, the second filter element, and the first filter element in sequence to complete the filtration.

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 waste water outlet 323 through the fourth water outlet 332 .

In actual use, the raw water in the waterway plate 8 passes through the third filter element and the second filter element E from the water inlet 321 to generate pure water and waste water. 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 in sequence, and finally flows out from the pure water outlet 322. The waste water flows through the third water outlet 344 and the fourth water outlet 332 in sequence, and finally flows out from the waste water outlet 323.

The filter element 3 further includes a scale inhibitor 38, which is disposed in the filter cartridge 32 and contacts the raw water before the second filter element E. The scale inhibitor 38 is used to purify the raw water, reduce the impurity concentration of the raw water to a certain extent, and reduce the time for the 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 away from the end cover 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, and at least one of the third chamber F and the fourth chamber G is provided with a scale inhibitor 38. The number of scale inhibitors 38 can be selected according to the actual usage and the layout inside the filter element 3. In the embodiment disclosed in the present invention, scale inhibitors 38 are provided in both the third chamber F and the fourth chamber G. The two scale inhibitors 38 can improve the descaling efficiency.

As shown in reference figure 13, the filter element 3 further includes a filter element check piece 39, which is arranged in the water outlet of the filter element, and is used to block or open the water outlet of the filter element. In the embodiment disclosed in the present invention, three filter element check pieces 39 are arranged, and the three filter element check pieces 39 correspond to the water inlet 321, the pure water outlet 322 and the waste water outlet 323 respectively. It can be understood that the states of the three filter element check pieces 39 are all synchronous, that is, the water inlet 321, the pure water outlet 322 and the waste water outlet 323 are opened at the same time, or the water inlet 321, the pure water outlet 322 and the waste water outlet 323 are blocked at the same time. The following description will take the water inlet 321 as an example to describe the filter element check piece 39. The filter element check pieces 39 in the pure water outlet 322 and the waste water outlet 323 have roughly the same role and function as the filter element check piece 39 in the water inlet 321, and will not be elaborated on below.

The water inlet 321 includes a first opening and a bottom wall which are arranged opposite to each other, and 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, the outer ring of the first sealing portion 391 is fixedly connected to the inner wall of the water inlet 321, 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 abut against the inner ring of the first sealing portion 391, thereby achieving the function of blocking the water inlet 321.

The first sealing portion 391 is welded in the water inlet 321 by ultrasonic process, and its function is to prevent the first blocking portion 392 from moving toward the first opening.

The first blocking portion 392 includes a blocking position and a conducting position. Specifically, the blocking position is the position where the first blocking portion 392 contacts the first sealing portion 391, and the conducting position is the position where the first blocking portion 392 separates from the first sealing portion 391. Further, the first blocking portion 392 is configured to be able to move from the conducting position to the blocking position under the action of the elastic portion, so that the first blocking portion 392 can contact the first sealing portion 391 to block the water inlet 321; the first blocking portion 392 is also configured to be able to move from the blocking position to the conducting position under the action of the waterway plate 8, so that the water inlet 321 and the waterway plate 8 are conducting.

In some embodiments, the filter element check member 39 further includes a second sealing portion 394, which is annular and disposed in a sealing cavity J at the first opening. During the installation of the filter element 3 and the waterway plate 8, the water inlet of the waterway plate will extend into the water inlet of the filter element. At this time, the seal can seal the water inlet 321 and the waterway plate water inlet.

As shown in reference figure 14, the filter element 3 further includes a lifting member 30, which is arranged on the end cap 31 and is used to lift the entire filter element 3. The lifting member 30 is semicircular, and is rotatably connected to the end cap 31. Specifically, the lifting member 30 and the end cap 31 are provided with mutually matching pins and pin holes at the relative positions, and the pins are accommodated in the pin holes, and the rotatable connection between the lifting member and the end cap 31 is realized through the pins and the pin holes. The lifting member 30 includes an initial position and a lifting position. In the initial position, the lifting member 30 fits the end cap 31, and in the lifting position, there is a gap between the lifting member 30 and the end cap 31. 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 chamber I by 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.

Furthermore, the relative positions of the lifting member 30 and the end cover 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 can prevent the filter element 3 from swinging randomly after installation. At the same time, when the second stopper 301 is inserted into the second groove 311, a click sound will be generated, providing the user with an operating feel and informing the user that the lifting member 30 has reached the initial position, which is conducive to improving the user's experience.

As shown in reference figure 15, 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 arranged at the first installation port and connected to the middle frame body 21. The front panel assembly 5 is provided with a second opening H, which is connected to the accommodating space A. The second opening H is used for the filter element 3 to enter and exit. The door panel assembly 4 is arranged 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 that fits the front panel assembly 5, or can be flipped to a second position that is perpendicular to the front panel assembly 5. The flipping of the door panel assembly 4 facilitates the disassembly and assembly of the filter element 3 structure. The locking assembly is arranged between the front panel assembly 5 and the door panel assembly 4, and 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.

As shown in Figures 16 to 18, the door panel assembly 4 includes a decorative panel 41 and a door panel 42, and 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 shaft and a pin hole are provided between the front panel assembly 5 and the decorative panel 41, and the door panel assembly 4 and the front panel assembly 5 are rotatably connected through the pin shaft and the pin hole.

The locking assembly includes a first snap-fit member 61, an elastic member, and a second snap-fit member 63. A receiving cavity I is formed between the decorative plate 41 and the door panel 42. The first snap-fit member 61 and the elastic member are disposed in the receiving cavity I. The first snap-fit member 61 is slidably connected to the door panel assembly 4 so that the first snap-fit member 61 can slide in the receiving cavity I. The second snap-fit member 63 is disposed on the front panel assembly 5. The first snap-fit member 61 and the second snap-fit member 63 match each other and are used for engagement. The elastic member abuts between the first snap-fit member 61 and the door panel assembly 4, and the elastic member is used to apply a driving force to the first snap-fit member 61.

Furthermore, the first latch 61 has a locking position and a releasing position. The first latch 61 is configured to be able to move from the locking position to the releasing position under the action of an external force, and to be able to move from the releasing position to the locking position under the action of the elastic member. Furthermore, in the locking position, the first latch 61 and the second latch 63 are engaged with each other, so that the door panel assembly 4 can block the second opening H. In the releasing position, the first latch 61 and the second latch 63 are separated from each other, so that the filter element 3 can be taken out from the second opening H.

In the embodiment disclosed in the present invention, the external force may be a human pressure, that is, the filter element 3 may be disassembled and assembled by a human pressure operation combined with the flipping of the door panel assembly 4 . Specifically, during the disassembly process, a person presses the first fastener 61 and squeezes the elastic member to separate the first fastener 61 and the second fastener 63 from each other, thereby the door panel assembly 4 can be flipped from the first position to the second position, at which time the second opening H is connected to the external space, so that the filter element 3 can be removed from the middle frame; during the installation process, the filter element 3 is first installed into the middle frame assembly 2, and then the first fastener 61 is pressed, and at the same time the door panel assembly 4 is flipped from the second position to the first position, and finally the person releases the pressing force, and at the same time the elastic member releases the elastic force, so that the first fastener 61 and the second fastener 63 are engaged with each other, thereby the door panel assembly 4 is locked in the first position, and 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 a person, the setting of the locking assembly, and the turning 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 labor.

The first snap fastener 61 includes a pressing portion 611 and a first snap fastener 612. The pressing portion 611 and the first snap fastener 612 are connected to each other. Preferably, the pressing portion 611 and the first snap fastener 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 out of the door panel assembly 4. This arrangement can facilitate the application of a pressing force to the pressing portion 611. A first locking groove is formed between the pressing portion 611 and the first snap fastener 612. Specifically, the first snap fastener 612 can be L-shaped or hook-shaped. The notch of the first locking groove is arranged in a direction close to the second snap fastener 63, and the first locking groove is used to engage with the second snap fastener 63.

A second guide portion 613 and a guide hole are relatively arranged between the first fastener 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 fastener 61 between the locking position and the release position to prevent the first fastener 61 from being skewed during the movement.

In the embodiment disclosed in the present invention, the second guide portion 613 is connected to the pressing portion 611, and a third supporting portion 421 is provided on one side of the door panel 42 close to the decorative panel 41. The third supporting portion 421 is in a flat plate shape, and the guide hole is provided on the third supporting portion 421. The elastic member is provided on the outer periphery of the second guide portion 613 and abuts between the first buckle portion 612 and the third supporting portion 421.

A third limiting portion 422 and a limiting groove 614 are relatively arranged between the first fastener 61 and the door panel assembly 4. The third limiting portion 422 is accommodated in the limiting groove 614 and can slide in the limiting groove 614. The third limiting portion 422 and the limiting groove 614 can guide the movement of the first fastener 61 and at the same time can also limit the locking position and release position of the first fastener 61. Furthermore, the length of the limiting groove 614 can determine the pressing stroke and the return stroke of the first fastener 61. For example, the limiting groove 614 includes a bottom end and a top end. When the first fastener 61 is pressed downward, the third limiting portion 422 slides in the limiting groove 614 toward the bottom end until the third limiting portion 422 slides to the bottom end and the first fastener 61 cannot be pressed any further. When the pressing force is released, the elastic member drives the third limiting portion 422 to slide in the limiting groove 614 toward the top end until the third limiting portion 422 slides to the top end and stops sliding. In the embodiment disclosed by the present invention, the third limiting portion 422 is located on the door panel 42, and the limiting groove 614 is located on the first fastener 61.

The specific positions of the second guide portion 613, the guide hole, the third limiting portion 422 and the limiting groove 614 of the present invention 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 of the present invention, the wire portion and the guide hole are located below the pressing portion 611, and the third limiting portion 422 and the limiting groove 614 are located on both sides and below the pressing portion 611.

The second buckle 63 includes a second buckle portion. The second buckle portion may be L-shaped or hook-shaped. A second locking groove is formed between the first buckle portion 612 and the front panel assembly 5. The notch of the second locking groove is arranged toward the direction close to the first buckle 61. The second locking groove is used to engage with the first buckle portion 612. Specifically, the notch of the first locking groove of the present invention faces upward, and the notch of the second locking groove faces downward. When the first buckle 61 and the second buckle 63 are engaged with each other, the first buckle portion 612 is located in the second locking groove, and the second buckle portion is located in the first locking groove.

The second fastener 63 and the front panel assembly 5 are separated or integrated. The separated arrangement can simplify the production process of the second fastener 63 and the front panel assembly 5, and the integrated arrangement can enhance the strength of the second fastener 63 and the front panel assembly 5. In the embodiment disclosed in the present invention, the second fastener 63 and the front panel assembly 5 are separated.

In the embodiment where 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 position is located on the second side of the second fastener 63.

A sealing 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 sealing member is arranged in the sealing cavity J. The sealing member is used to seal the gap between the second fastener 63 and the front panel assembly 5. The arrangement of the sealing member enables the water purification device to reach the IPX4 waterproof level.

Referring to FIG. 15 again, the filter element disassembly and assembly device further includes a drive assembly 7, and two drive assemblies 7 are provided, and the two drive assemblies 7 are respectively provided on the left and right sides of the filter element 3. The drive assembly 7 penetrates the front panel assembly 5 and can slide 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 cooperate 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 driving 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 panel 41 through a pin and a pin hole, and the other end of the pull rod 71 extends into the middle frame assembly 2 through the through hole of the front panel assembly 5. The slider 72 is arranged on one side of the pull rod 71; the guide groove 73 is composed of a first groove arranged in the middle frame assembly 2 and a second groove arranged in the front panel assembly 5. The slider 72 is accommodated in the guide groove 73 and can slide in the guide groove 73.

Furthermore, as shown in FIG3 , the middle frame body 21 is provided with an avoidance space 27 and a connecting groove 28, the driving assembly 7 is provided in the avoidance space 27, and the connecting groove 28 is used to connect the avoidance space 27 and the accommodating space A, so that the driving assembly 7 can at least partially contact the filter element 3 through the connecting groove 28. Specifically, the driving assembly 7 further includes a first pushing portion 74 and a second pushing portion 75 arranged opposite to each other, and a matching portion is arranged on the periphery of the filter element 3, and the matching portion is located between the first pushing portion 74 and the second pushing portion 75. As shown in FIG14 , the matching portion includes a first matching surface 324 and a second matching surface 325 arranged opposite to each other, the first matching surface 324 is used to contact the first pushing portion 74, and the second matching surface 325 is used to contact the second pushing portion 75. In actual use, the disassembly process is specifically as follows: the door panel assembly 4 is flipped from the first position to the second position. During the flipping process, the pull rod 71 moves along with the door panel assembly 4. The pull rod 71 gradually moves until the first push portion 74 contacts the first mating surface 324. The pull rod 71 continues to move along with the door panel assembly 4, and the filter element 3 can be driven to move outward through the first push portion 74. Then, the filter element 3 can be removed from the middle frame assembly 2. The installation process is specifically as follows: a part of the filter element 3 is placed In the accommodating space A (the other part of the filter element 3 is outside the accommodating space A), the door panel assembly 4 is flipped from the second position to the first position. During the flipping process, the pull rod 71 moves along with the door panel assembly 4. The pull rod 71 gradually moves until the second pushing portion 75 contacts the second mating surface 325. The pull rod 71 continues to move along with the door panel assembly 4 to drive the filter element 3 to move inward through the second pushing portion 75 until the filter element 3 is safely pushed into the accommodating space A, thereby achieving the installation of the filter element 3.

As shown in reference figure 19, the front panel assembly 5 includes a front panel body 51, a positioning member 52, a supporting member 53, a second fixing member 54 and a light-transmitting member. The front panel body 51 is in the shape of a plate, and the front panel body 51 is connected to the housing and the middle frame assembly 2. A second opening H for the filter element 3 to enter and exit is formed on the front panel body 51. The water purification equipment also includes a main circuit board/main PCB board 50. The front panel body 51 includes a fifth mounting position, and the fifth mounting position is used to install the main circuit board 50. The positioning member 52, the supporting member 53, the second fixing member 54 and the light-transmitting member are all arranged on a side of the front panel body 51 close to 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. This can avoid holding the main circuit board 50 and facilitate the main circuit board 50. The first fixing member 54 is used to fix the main circuit board 50 on the front panel body 51, and the second fixing member 54 is used to fix the main circuit board 50 on the front panel body 51, so that there is a certain distance between the main circuit board 50 and the front panel body 51, so as to avoid collision between the main circuit board 50 and the front panel body 51, and to 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 on the front panel body 51, so as to prevent the main circuit board 50 of the device from shifting during the movement of the device. The main circuit board 50 is provided with a light-emitting part, and the light-transmitting member is used to allow the light of the light-emitting part to be emitted from the front panel body 51.

As shown in reference figure 20, the positioning member 52 includes a bearing portion 521 and a blocking portion 522. The bearing portion 521 is connected to the front panel body 51, and the bearing portion 521 is used to bear the main circuit board 50. The bearing portion 521 is provided with a positioning groove 523, and the positioning groove 523 is extended along the third direction Z. The notch of the positioning groove 523 faces upward, and the positioning groove 523 is used for at least partial insertion of the main circuit board 50, and the main circuit board 50 after insertion can be positioned to a preset position. The blocking portion 522 is connected to the bearing portion 521, and the blocking portion 522 is in the shape of a plate/block. The blocking portion 522 is used to abut the edge of the main circuit board 50, and can prevent the main circuit board 50 from shifting during the installation process.

In the embodiment disclosed in the present invention, two positioning members 52 are provided, and the two positioning members 52 are arranged opposite to each other along the first direction. The two positioning members 52 can improve the stability of the main circuit board 50. The two blocking portions 522 in the two positioning members 52 are arranged opposite to each other. After the main circuit board 50 is inserted into the positioning groove 523, the two blocking portions 522 are respectively located on both sides of the main circuit board 50.

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

In other embodiments, two positioning members 52 may be provided, wherein two supporting portions 521 are spaced apart along the second direction Y, each supporting portion 521 is provided with a positioning groove 523, the positioning groove 523 extends along the second direction Y, the notches of the two positioning grooves 523 are arranged opposite to each other, and in this embodiment, the two blocking portions 522 are respectively side walls of the two positioning grooves 523 away from the notches.

All of the above embodiments can be used as the positioning member of the present invention. Of course, the positioning member can be arranged in the following ways, but is not limited to the above three ways, as long as it can play a role in positioning the main circuit board 50.

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

The first end of the support member 53 is fixedly connected to the front panel assembly 5, 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. The main circuit board 50 can be placed on the step surface after being inserted into the positioning groove 523. 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.

Furthermore, a plurality of supporting members 53 are provided, and the plurality of supporting members 53 are located above the positioning member, and the plurality of supporting members 53 are spaced apart along the edge of the circuit board.

The second fixing member 54 is provided with a mounting hole 541, and the mounting hole 541 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 541 can be a threaded hole, and the fastener can be a bolt.

As shown in FIG. 21 and FIG. 22 , the light-transmitting member includes a light-transmitting hole and a light-collecting hole 551. The light-collecting hole 551 penetrates the front panel body 51. The light-emitting portion on the main circuit board 50 is arranged corresponding to the light-transmitting hole. The light-transmitting hole is used to allow the light of the light-emitting portion to be emitted from the front panel body 51. The light-collecting hole 551 is arranged on a side of the front panel body 51 close to the circuit board. The light-collecting hole 551 is connected to the light-transmitting hole and is arranged coaxially. The light-collecting hole 551 is covered on the periphery of the light-emitting portion. The light-collecting hole 551 is used to collect light beams to avoid interference between two adjacent light beams.

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 to be emitted outward. The diameters of the light-collecting hole 551, the first hole portion 552, and the second hole portion 553 decrease sequentially. In the thickness direction (front-rear 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. Setting the second hole portion 553 thinner is conducive to directly emitting light to the outside.

The present invention does not limit the shape and size of the light-transmitting holes and the light-collecting holes 551. The present invention can set light-transmitting holes of different shapes and sizes according to actual conditions, for example, they can be square, circular, etc. The present invention does not limit the number of light-transmitting holes, light-collecting holes 551, and light-emitting parts. The present invention 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, etc. can be set. In the embodiment disclosed in the present invention, the light-transmitting hole is circular, the light-focusing hole 551 is cylindrical, and the number of the light-transmitting hole, the light-focusing hole 551 and the light-emitting part 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.

The present invention positions the main circuit board 50 by setting the 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 beam emitted by the light-emitting part from the main circuit board 50 to the front panel body 51 is finally emitted outward from the light-transmitting member, and the distance between the light-emitting part and the light-transmitting member is the path of the light beam. After the main circuit board 50 and the front panel assembly 5 are parallel, the distance between the light-emitting part and the light-transmitting member 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 with a shorter path, avoiding the problem that too much light beam is wasted between the light-emitting part and the light-transmitting member, resulting in very weak light emitted from the light-transmitting member.

As shown in FIG. 23 and FIG. 24 , the waterway plate 8 includes a waterway plate body 81, a connector 83 and a waterway check piece 84. The waterway plate body 81 is provided with a water interface, the connector 83 is provided between the waterway plate body 81 and the filter element 3, the connector 83 is provided with a waterway plate water port connected to the water interface, the waterway plate water port is used to connect with the filter element water port, when the waterway plate water port is connected with the filter element water port, the filter element 3 and the waterway plate body 81 are connected; the waterway check piece 84 is provided in the waterway plate water port, and the waterway check piece is used to conduct or block the waterway plate water port.

The waterway plate body 81 and the connecting member 83 are detachably connected, for example, the waterway plate body 81 and the connecting member 83 can be connected by bolts. When one of the waterway check pieces in the waterway plate body 81 or the connecting member 83 is damaged, the damaged part can be selectively removed and replaced, and the undamaged part is retained on the original equipment, which can effectively reduce the production cost of the merchant and the use cost of the user.

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 opposite sides of the first plate body and the second plate body are concavely formed 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 each other to form a plurality of channels in the waterway plate body 81. It can be understood that welding is a widely used connection technology in the prior art, and is applied to the connection between the first plate body and the second plate body, which can effectively ensure the connection sealing of the waterway plate body 81 and prevent the waterway plate body 81 from leaking. Of course, in other embodiments, the waterway plate body 81 can also be formed in one piece.

The top of the waterway plate body 81 is provided 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 inside of 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 to the outside respectively. The water interface includes a water inlet interface 814, a pure water interface 815 and a waste water interface 816. A raw water channel, a pure water channel and a waste water channel are formed inside the waterway plate body 81. The raw water channel is used to connect the raw water port 811 and the water inlet interface 814; the pure water channel is used to connect the pure water port 812 and the pure water interface 815; the waste water channel is used to connect the waste water port 813 and the waste water interface 816. There are three water inlets on the waterway plate, 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, the external water source enters the waterway plate main body 81 from the raw water inlet 811, and 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 filtering through 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 filtering through 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.

The waterway plate body 81 is also provided with a booster pump inlet 817 and a booster pump outlet 818, and the booster pump 230 is connected between the booster pump 230 inlet 817 and the booster pump outlet 818. The raw water channel includes a first water channel K connecting the raw water inlet 811 and the booster pump 230 inlet 817, and a second water channel L connecting the booster pump outlet 818 and the water inlet interface 814. A first detection component 85 is provided on the first water channel K, and the first detection component 85 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, and the first valve 86 is connected to the first water channel K through the first inlet 819 and the first outlet 820, and the first valve 86 is used to control the on and off of the first water channel K. In actual use, the raw water passes through the raw water inlet 811 and then 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.

The pure water channel includes a third water channel M connecting the pure water port 812 and the pure water interface 815. The third water channel M is provided with a second detection component 87 and a second valve component 88. The second detection component 87 is used to detect the TDS value of the pure water. The second valve component 88 is connected to the third water channel M through the second inlet 821 and the second outlet 822. The second valve component 88 is used to control the on-off of the third water channel M. In actual use, pure water flows through the pure water interface 815 in sequence through the third water channel M, the second inlet 821, the second valve component 88, and the second outlet 822, and finally flows out through the pure water port 812.

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

The wastewater channel is provided with a third valve 89, which is connected to the wastewater channel through a third inlet 823 and a third outlet 824. The third valve 89 is used to control the on-off of the wastewater channel. In actual use, wastewater flows through the wastewater channel, the third inlet 823, the third valve 89 and the third outlet 824 in sequence through the wastewater interface 816, and finally flows out through the wastewater outlet 813.

The water inlet of the waterway plate is arranged correspondingly to the water inlet of the filter element. Specifically, the fourth inlet 831 is connected to the water inlet 321, the fourth outlet 832 is connected to the pure water outlet 322, and the fifth outlet 833 is connected to the waste water outlet 323.

As shown in FIG. 25 , there are three waterway check members 84, which correspond to the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833, respectively. It can be understood that the states of the three waterway check members 84 are all synchronized, that is, the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833 are simultaneously opened, or the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833 are simultaneously blocked. The fourth inlet 831 will be taken as an example to describe the waterway check member 84. The waterway check members 84 in the fourth outlet 832 and the fifth outlet 833 have substantially the same role and function as the waterway check member 84 in the fourth inlet 831, and will not be elaborated on below.

The fourth inlet 831 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 ring-shaped, 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 to the outside of 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 in a direction close to the filter element 3 until the second blocking portion 841 can abut against the bottom wall, thereby achieving the function of blocking the fourth inlet 831.

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 abuts against 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 abut against the bottom wall to block the fourth inlet 831; 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 that the fourth inlet 831 and the filter element 3 are conductive.

The following describes the state and position of the filter element 3 structure and the waterway plate 8 when they are not assembled, just in contact, and during the assembly process:

When the filter element 3 and the waterway plate 8 are not assembled, the two are relatively independent. The first blocking portion 392 in the filter element 3 is in the blocking position due to the force of the elastic member, and a seal is formed at this time to prevent the water in the filter element 3 from flowing out. The pushing portion 842 and the second blocking portion 841 in the waterway plate 8 are in the blocking position due to the force of the second elastic portion 843, and a seal is also formed at this time to prevent the water in the waterway plate 8 from flowing out.

When the filter element 3 and the waterway plate 8 are just in 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 in the subsequent assembly process.

As shown in FIG26 , during the assembly process of the filter element 3 and the waterway plate 8, the pushing portion 842 squeezes the first blocking portion 392, causing the first blocking portion 392 to move from the blocking position to the conducting position, at which time the water outlet of the filter element is conducted; at the same time, the pushing portion 842 is subjected to a reaction, and the pushing portion 842 squeezes the second elastic portion 843 to move from the blocking position to the conducting position, at which time the water outlet of the waterway plate is conducted, until the assembly of the filter element 3 and the waterway plate 8 is completed.

As shown in reference figure 27, the waterway plate 8 also includes a sealing member 801, which is arranged between the waterway plate body 81 and the connecting member 83. The sealing member 801 is used to seal the gap between the waterway plate body 81 and the connecting member 83. The sealing member 801 can be a sealing ring. The present invention has three sealing members 801, and the three sealing members 801 correspond to the positions of the fourth inlet 831, the fourth outlet 832, and the fifth outlet 833, respectively. Referring again to Figures 10 and 23, the waterway plate 8 also includes a plate 802, which is arranged on the periphery of the connecting member 83 and is detachably connected to the waterway plate main body 81. The plate 802 and the connecting member 83 can be separately arranged or integrated. Preferably, the plate 802 and the connecting member 83 are separately arranged, which is conducive to the disassembly and maintenance of the plate 802 and the connecting member 83 separately.

The water purification device further includes an identification component, which is used to identify the filter element 3 that matches the waterway plate 8. The identification component includes a first identification component 803 and a second identification component 326. The first identification component 803 and the second identification component 326 match each other and are relatively arranged on the plate 802 and the filter cartridge 32. Specifically, the first identification component 803 and the second identification component 326 can be hole or column structures. When the filter element is actually installed, only the first identification component 803 and the second identification component 326 whose positions and shapes match each other can complete the docking of the filter element 3 and the waterway plate 8.

For the aging water circuit structure 9, the user or the merchant can set it according to actual needs. For example, if the aging water circuit structure 9 is not needed, then only the water circuit plate 8 is set in the water purification equipment. In this case, in addition to the interfaces recorded above, no other interfaces are required to connect the aging water circuit structure 9 on the water circuit plate body 81; it is understandable that, in the case where the aging water circuit structure 9 is needed, in addition to the interfaces recorded above, other interfaces (the pure water outlet 825, the return water inlet 826 and the drainage water inlet 827 mentioned below) are required to connect the aging water circuit structure 9 on the water circuit plate body 81. The aging water circuit structure 9 is detachably connected to the water circuit plate 8, for example, the aging water circuit structure 9 can be installed to the water circuit plate 8 by bolts.

In the embodiment in which the drying 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 drying water channel structure 9 is disassembled. Specifically, after the drying water channel structure 9 is disassembled, the interface on the water channel plate 8 connected to the drying 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 drying water channel structure 9 is disassembled.

The water channel structure 9 includes a water aging plate body. The water aging plate body includes a third plate body and a fourth plate body, and the third plate body is welded to the fourth plate body to form the water aging plate body. The opposite sides of the third plate body and the fourth plate body are concavely formed with a plurality of mutually adapted process grooves. After the third plate body and the fourth plate body are welded, the process grooves on the two plates cover each other to form a plurality of flow channels in the water aging plate body.

As shown in Figures 24 and 28, the main body of the water display 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 water display plate include a pure water inlet flow channel, a return water outlet flow channel N and a drainage outlet flow 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 flow channel through the pure water inlet 91, the return water inlet 826 is connected to the return water outlet flow channel N through the return water outlet 92, and the drainage inlet 827 is connected to the drainage outlet flow channel O through the drainage outlet 93.

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.

Furthermore, the storage water channel structure 9 also includes a return water solenoid valve and a drain water 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 water solenoid valve is connected to the second branch Q through the seventh inlet 96, and the drain water solenoid valve is connected to the drain water outlet channel O through the seventh outlet 97.

When the aged water channel structure 9 is actually used, it means that the water purification equipment has been stationary for a period of time. Due to the permeation phenomenon, the TDS value of the pure water will increase after being stationary for a period of time, resulting in the taste and hygiene of the first cup of water being affected. At this time, the pure water is no longer pure water with a qualified TDS value. In order to solve the above-mentioned problem, the pure water channel of the present invention 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 plate 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; the drainage inlet 827 is connected to the waste water channel.

After being left still, 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 waste water channel in sequence, and finally is output to the outside through the waste water outlet 813.

In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

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 a central 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 a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and do not represent the only implementation method.

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.

The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it should not be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

1: Outer shell 2: Middle frame assembly 21: Middle frame body A: Accommodation space 211: Guide groove 212: First mounting position 213: Second mounting position 214: Third mounting position 215: Fourth mounting position 22: Identification module 221: RFID PCB board 222: Positioning part 223: First support part 224: First fixing part 225: Positioning hole 23: Booster pump module 230: Booster pump 231: Bracket 232: Shock absorber unit 233: Shock absorber 234: Outer shell 235: First fixing part 236: Mounting groove 237: Shock absorber hole 238: First area 239: Second area 24: Water leakage detection module 241: Water leakage circuit board 242: Second fixing part 243: Elastic buckle part 244: Second support part 245: First limit part 25: Adapter module 251: Power adapter 252: First mounting bracket 253: Second mounting bracket 254: Mounting hole 26: Blocking part 27: Avoidance space 28: Connecting groove 29: Wire receiving part 3: Filter element 31: End cover 311: Second groove 32: Filter cartridge 321: Water inlet 322: Pure water outlet 323: Waste water outlet 324: First mating surface 325: Second mating surface 326: Second identification piece 33: Top cover 331: Second water outlet 332: Fourth water outlet 34: Middle seat 341: First water outlet 342: Block 343: Retaining rib 344: Third water outlet 35: Bottom cover 36: Separator 361: Communication port 362: Connecting part 363: First extension part 364: Second extension part 365: Third extension part 37: Stopper 38: Scale blocking part 39: Filter element return stopper 30: Lifting piece 301: Second limiting part 391: First sealing part 392: First blocking part 393: First elastic part 394: Second sealing part B: Chamber C: First flow channel D: Second flow channel E: Second filter element F: Third chamber G: Fourth chamber 4: Door panel assembly 41: Decorative panel 42: Door panel 421: Third support part 422: Third limit part I: Accommodation chamber 5: Front panel assembly 50: Main circuit board H: Second opening 51: Front panel body 52: Positioning member 521: Carrying part 522: Blocking part 523: Positioning groove 524: Third guide part 53: Supporting member 54: Second fixing member 551: Focusing hole 552: First hole part 553: Second hole part 61: First buckle member 611: Pressing part 612: First buckle part 613: Second guide part 614: Limiting groove 63: Second buckle J: Sealing chamber 7: Driving assembly 71: Pull rod 72: Slider 73: Guide groove 74: First push part 75: Second push part 8: Waterway plate 81: Waterway plate body 811: Raw water inlet 812: Pure water inlet 813: Waste water inlet 814: Water inlet interface 815: Pure water interface 816: Waste water interface 817: Booster pump inlet 818: Booster pump outlet 819: First inlet 820: First outlet 821: Second inlet 822: Second outlet 823: Third inlet 824: Third outlet 825: Pure water outlet hole 826: Return water inlet 827: Drainage inlet 83: Connector 831: Fourth inlet 832: Fourth outlet 833: Fifth outlet 84: Waterway check piece 841: Second blocking part 842: Pushing part 843: Second elastic part 85: First detection piece 86: First valve piece 87: Second detection piece 88: Second valve piece 89: Third valve piece 801: Sealing piece 802: Plate 803: First identification piece K: First water channel L: Second water channel M: Third water channel R: Fourth water channel S: Fifth water channel 9: Water channel structure 91: Pure water inlet 92: Return water outlet 93: Drain water outlet 94: Sixth inlet 95: Sixth outlet 96: Seventh inlet 97: Seventh outlet N: Return water outlet channel O: Drain water outlet channel P: First branch Q: Second branch 10: End plate X: First direction Y: Second direction Z: Third direction

Figure 1 is a schematic diagram of a water purification device in an embodiment of the present invention. Figure 2 is an exploded view of a water purification device in an embodiment of the present invention. Figure 3 is a schematic diagram of a middle frame assembly in an embodiment of the present invention. Figure 4 is a schematic diagram of the positions of an identification module, a booster pump module, a water leakage detection module, and an adapter module in an embodiment of the present invention. Figure 5 is a schematic diagram of an identification module in an embodiment of the present invention. Figure 6 is a schematic diagram of a shock absorbing module in an embodiment of the present invention. Figure 7 is a schematic diagram of a shock absorbing unit in an embodiment of the present invention. Figure 8 is a schematic diagram of a water leakage detection module in an embodiment of the present invention. Figure 9 is a cross-sectional view of a filter element in an embodiment of the present invention. Figure 10 is a schematic diagram of the end of the filter cartridge in an embodiment of the present invention. Figure 11 is an exploded view of the partition and the middle seat in an embodiment of the present invention. Figure 12 is a schematic diagram of the position of the stopper in an embodiment of the present invention. Figure 13 is a schematic diagram of the filter element return stop in an embodiment of the present invention. Figure 14 is a schematic diagram of the lifting member in an embodiment of the present invention. Figure 15 is an exploded view of the filter element disassembly and assembly device in an embodiment of the present invention. Figure 16 is a schematic diagram of the door panel near the decorative panel in an embodiment of the present invention. Figure 17 is a cross-sectional view of the door panel and the front panel body in an embodiment of the present invention. Figure 18 is an enlarged view of T in Figure 17. Figure 19 is a schematic diagram of the front panel body away from the door panel assembly in an embodiment of the present invention. Figure 20 is a schematic diagram of the positioning member in an embodiment of the present invention. Figure 21 is a cross-sectional view of the front panel body in an embodiment of the present invention. Figure 22 is an enlarged view of the U in Figure 21. Figure 23 is a schematic diagram of the waterway plate near the filter element in an embodiment of the present invention. Figure 24 is a schematic diagram of the inside of the waterway plate in an embodiment of the present invention. Figure 25 is a schematic diagram of the waterway check member in an embodiment of the present invention. Figure 26 is a schematic diagram of the filter element and the waterway plate after assembly in an embodiment of the present invention. Figure 27 is a cross-sectional view of the waterway plate in an embodiment of the present invention. Figure 28 is a schematic diagram of the water channel structure in an embodiment of the present invention.

1: Shell

2: Middle frame assembly

3: Filter element

4: Door panel assembly

5:Front panel assembly

8: Waterway board

9: Chenshui waterway structure

10: End plate

Claims (7)

A water purification device, comprising: Filter element; The middle frame assembly includes a storage space, the storage space is used to store the filter element, the middle frame assembly includes a middle frame body, an identification module and a barrier, 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 arranged on the first mounting surface or the second mounting surface, the second mounting position is arranged on the first mounting surface, the third mounting position is arranged on the second mounting surface, the fourth mounting position is arranged on the first mounting surface and is located between the second mounting position and the third mounting position, the identification module is arranged on the first mounting position and is used to identify the filter element, the barrier is arranged between the first mounting position and the second mounting position, and the barrier is used to prevent water from contacting the identification module; A front panel assembly is arranged at one end of the middle frame assembly, the front panel assembly includes an opening connected to the accommodating space, the opening is used for the filter element to enter and exit; A door panel assembly is movably connected to the front panel assembly, the door panel assembly is used to block the opening or connect the opening to the external space; and A waterway plate is arranged at one end of the middle frame assembly away from the front panel assembly and connected to the filter element, the waterway plate is used to transmit water. As described in claim 1, the water purification device, wherein the filter element is provided with an anti-counterfeiting label, and the identification module is provided corresponding to the anti-counterfeiting label. A water purification device as described in claim 1 or 2, wherein the middle frame assembly further includes a booster pump module, and the booster pump module is arranged at the second mounting position and connected to the waterway plate. A water purification device as described in claim 3, wherein the middle frame assembly further includes an adapter module, the adapter module is arranged at the fourth mounting position and connected to the booster pump module, and the booster pump module and the adapter module are arranged in the same direction. The water purification device as described in claim 1, 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. A water purification device as described in claim 1, wherein 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 mount a main circuit board. As described in claim 6, the middle frame assembly further includes a wire receiving member, and the wire receiving member is used to fix the wires connected between the main circuit board and the water circuit board.