Waterway device for water purifier and water purifier

Abstract

The utility model relates to the technical field of water purification equipment, in particular to a water path device for a water purifier and the water purifier. The waterway device for the water purifier comprises a waterway plate and a check valve, a waterway runner is arranged in the waterway plate; the check valve is accommodated in the water channel; the check valve comprises a connecting part, a valve plate and a magnetic attraction piece, the valve plate is movably connected to the connecting part, the magnetic attraction piece is connected to the valve plate, and the valve plate is used for opening the water channel when water flow forwards flows along the water channel; and when the water flow reversely flows along the waterway flow channel, the magnetic attraction piece and the connecting part are attracted, and the waterway flow channel is closed through the valve plate. According to the waterway device, the check valve is arranged to be matched with the waterway plate, so that the problem of water flow leakage in the prior art is effectively solved.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, and in particular to a water circuit device for a water purifier and a water purifier. Background Technology

[0002] With increasing public awareness of drinking water safety and health, the water purifier market has grown rapidly in recent years, becoming an indispensable water treatment device in homes and businesses. Currently, most water purifiers on the market use various water circuit devices to achieve the functions of filtering and purifying water sources. However, existing water circuit devices still have some problems in design and function that urgently need to be solved, especially regarding the sealing when disassembling pipes.

[0003] Most existing water purifiers use a single water flow channel design, lacking effective backflow prevention measures. When users need to replace filter cartridges or perform pipeline maintenance, the disassembly of external pipelines often leads to leakage of residual water within the water flow channel. This not only wastes water resources but may also cause internal contamination of the equipment, affecting the water purifier's efficiency and the safety of drinking water. Furthermore, leaks can cause water stains, mold growth, and other safety hazards on the exterior of the equipment, exposing users to unnecessary trouble and risks during use.

[0004] Therefore, it is necessary to address the aforementioned issues in order to change the current situation. Utility Model Content

[0005] This application provides a water circuit device and a water purifier for a water purifier, which solves the problem of water leakage that easily occurs when the pipes of the existing water purifier are removed.

[0006] The first aspect of this application provides a water circuit device for a water purifier, comprising:

[0007] Water circuit board, with internal water flow channels; and

[0008] A check valve is housed within the water passage. The check valve includes a connecting part, a valve plate, and a magnetic element. The valve plate is movably connected to the connecting part, and the magnetic element is connected to the valve plate. The valve plate is used to open the water passage when the water flows in the forward direction along the water passage; when the water flows in the reverse direction along the water passage, the magnetic element attracts the connecting part and closes the water passage through the valve plate.

[0009] In one possible implementation, the water circuit board has a mounting hole communicating with the water flow channel, the connecting part is accommodated in the mounting hole, and the valve plate is at least partially accommodated in the water flow channel.

[0010] In one possible implementation, the outer wall of the connector is provided with a sealing flange that abuts against the inner wall of the connector and the mounting hole.

[0011] In one possible implementation, the connecting part is further provided with a magnet, and the connecting part is provided through a connecting hole communicating with the water flow channel. The valve plate is movably connected to the connecting part and is used to open or close the connecting hole. The magnetic attractant is magnetically engaged with the magnet.

[0012] In one possible implementation, one end of the valve plate is rotatably connected to the connecting portion, and the magnetic attractor is located at the other end of the valve plate.

[0013] In one possible implementation, the water circuit device further includes a sealing assembly comprising a sealing plug, a snap-fit ​​element, and a water circuit interface. The water circuit interface is detachably connected to the water circuit plate and housed within the water circuit channel. The sealing plug is detachably connected to the water circuit interface and seals the water circuit interface. The snap-fit ​​element snaps into the water circuit interface and secures the sealing plug.

[0014] A second aspect of this application provides a water purifier, comprising:

[0015] The water system device as described in any of the preceding claims, further comprising a connecting seat, wherein the water flow channel communicates with the connecting seat; and

[0016] The filter element assembly is detachably connected to the connector.

[0017] In one possible implementation, the filter element assembly includes a filter element seat and a filter element valve. The filter element seat has a communicating receiving cavity and an infusion port, and the infusion port is connected to the water flow channel. The filter element valve is movably housed within the receiving cavity, and the opening of the infusion port is located on the inner wall of the receiving cavity. The connecting seat has a connected seat body and a connecting pipe. The seat body is connected to the water flow plate, and the edge of the connecting pipe has a connecting groove. When the filter element assembly is separated from the water flow device, the filter element valve seals the opening of the receiving cavity. When the connecting pipe is inserted into the receiving cavity, the connecting pipe drives the filter element valve to move toward the interior of the receiving cavity, so that the connecting groove communicates with the infusion port.

[0018] In one possible implementation, the filter assembly further includes a filter sealing ring housed within the receiving cavity, the filter sealing ring serving to seal between the connecting tube portion and the inner wall of the receiving cavity.

[0019] In one possible implementation, the filter element holder has a receiving groove that communicates with the opening of the receiving cavity, and the filter element sealing ring is housed within the receiving groove; the filter element assembly further includes a limiting plate that is connected to the filter element holder and covers the outside of the filter element sealing ring, and the connecting pipe passes through the limiting plate.

[0020] Implementing the embodiments of this application has the following beneficial effects:

[0021] In the water circuit device of this embodiment, the water leakage problem existing in the prior art is effectively solved by setting a check valve in conjunction with the water circuit board. When the external pipeline is disassembled or the filter element is replaced, the check valve can automatically close the water circuit when the water flows in the opposite direction, avoiding water leakage caused by water residue, thereby preventing water waste and internal pollution of the equipment.

[0022] Furthermore, the check valve, through the cooperation of a valve plate and a magnetic component, allows the valve plate to open when water flows in the forward direction, ensuring the normal operation of the water flow path. When water flows in the reverse direction, the magnetic component attracts the connection point and seals the water flow path, ensuring unidirectional water flow and avoiding potential safety hazards caused by disassembling pipes or replacing filter components. This design not only improves the sealing performance of the water system but also enhances its stability and reliability, ensuring the efficient operation of the water purifier. Through these technical solutions, users can avoid the inconvenience of leaks when maintaining the water purifier and replacing filter cartridges, thereby improving the safety and ease of use of the equipment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A perspective view of the water purifier in an embodiment of this utility model is shown;

[0025] Figure 2 A schematic diagram of the internal structure of the water purifier in an embodiment of this utility model is shown;

[0026] Figure 3 A front view of the water system device in an embodiment of this utility model is shown;

[0027] Figure 4 It shows Figure 3 A sectional view along line AA.

[0028] Figure 5 An exploded view of the filter element assembly in an embodiment of this utility model is shown;

[0029] Figure 6 A perspective view of the water system device in an embodiment of this utility model is shown;

[0030] Figure 7 A cross-sectional schematic diagram of the water circuit device and filter element assembly combined in an embodiment of the present invention is shown;

[0031] Figure 8 A schematic diagram showing the open state of the check valve in an embodiment of this utility model is shown;

[0032] Figure label:

[0033] 10-Water purifier;

[0034] 100-Water circuit device; 110-Water circuit plate; 111-Water flow channel; 112-Mounting hole; 120-Check valve; 121-Connecting part; 1211-Sealing flange; 1212-Magnet; 1213-Connecting hole; 122-Valve plate; 123-Magnetic suction element; 130-Connecting seat; 131-Seat body; 132-Connecting pipe part; 1321-Connecting groove; 140-Sealing assembly; 141-Sealing plug; 142-Snap-fit ​​element; 143-Water circuit interface;

[0035] 200-Filter element assembly; 210-Filter element seat; 211-Receiving cavity; 2111-Receiving groove; 212-Infusion port; 220-Filter element valve; 230-Filter element sealing ring; 240-Limiting plate;

[0036] 300 - Shell structure. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] With increasing public awareness of drinking water safety and health, the water purifier market has grown rapidly in recent years, becoming an indispensable water treatment device in homes and businesses. Currently, most water purifiers on the market use various water circuit devices to achieve the functions of filtering and purifying water sources. However, existing water circuit devices still have some problems in design and function that urgently need to be solved, especially regarding the sealing when disassembling pipes.

[0039] Most existing water purifiers use a single water flow channel design, lacking effective backflow prevention measures. When users need to replace filter cartridges or perform pipeline maintenance, the disassembly of external pipelines often leads to leakage of residual water within the water flow channel. This not only wastes water resources but may also cause internal contamination of the equipment, affecting the water purifier's efficiency and the safety of drinking water. Furthermore, leaks can cause water stains, mold growth, and other safety hazards on the exterior of the equipment, exposing users to unnecessary trouble and risks during use.

[0040] Based on this, see Figures 1 to 8 As shown, this utility model embodiment provides a water circuit device 100 for a water purifier, which includes a water circuit plate 110 and a check valve 120; the water circuit plate 110 has a water flow channel 111 inside; the check valve 120 is housed in the water flow channel 111; the check valve 120 includes a connecting part 121, a valve plate 122 and a magnetic attractor 123, the valve plate 122 is movably connected to the connecting part 121, and the magnetic attractor 123 is connected to the valve plate 122. The valve plate 122 is used to open the water flow channel 111 when the water flows in the forward direction along the water flow channel 111; when the water flows in the reverse direction along the water flow channel 111, the magnetic attractor 123 is attracted to the connecting part 121 and closes the water flow channel 111 through the valve plate 122.

[0041] In the water circuit device 100 of this embodiment, the water leakage problem existing in the prior art is effectively solved by setting a check valve 120 in cooperation with the water circuit plate 110. When the external pipeline is disassembled or the filter element assembly 200 is replaced, the check valve 120 can automatically close the water circuit channel 111 when the water flow is reversed, avoiding water leakage caused by water residue, thereby preventing water waste and internal pollution of the equipment.

[0042] Furthermore, the check valve 120, through the cooperation of the valve plate 122 and the magnetic element 123, can open the valve plate 122 when the water flows in the forward direction, ensuring the normal operation of the water passage 111. When the water flows in the reverse direction, the magnetic element 123 can attract the connecting part 121 and seal the water passage 111, ensuring unidirectional water flow and avoiding potential safety hazards caused by disassembling pipes or replacing the filter element assembly 200. This design not only improves the sealing performance of the water device 100 but also enhances the stability and reliability of the water system, ensuring the efficient operation of the water purifier 10. Through the above technical solution, users can avoid the inconvenience of leaks when maintaining the water purifier 10 and replacing the filter element, thereby improving the safety and ease of use of the equipment.

[0043] In one embodiment, the water circuit board 110 has a mounting hole 112 communicating with the water flow channel 111, the connecting part 121 is accommodated in the mounting hole 112, and the valve plate 122 is at least partially accommodated in the water flow channel 111.

[0044] A stepped hole is formed by opening a mounting hole 112 on the water circuit plate 110 that communicates with the water flow channel 111. The stepped hole design not only positions the connection part 121 for accurate installation, but also accommodates the check valve 120 within the mounting hole 112, making the combined structure of the check valve 120 and the water circuit plate 110 more compact, reducing the overall size of the water circuit device, and facilitating installation and maintenance.

[0045] Furthermore, the stepped hole design helps improve the sealing performance of the water circuit device 100. By creating a certain gap between the water flow channel 111 and the mounting hole 112, the check valve 120 can quickly close the water flow channel 111 when the water flow reverses, preventing water leakage. This design not only improves the sealing performance of the water circuit device 100 but also enhances the stability and reliability of the water system, ensuring the efficient operation of the water purifier 10.

[0046] In summary, in this embodiment, by providing an installation hole 112 on the water circuit board 110 that communicates with the water flow channel 111 and housing the connection part 121 and the check valve 120 therein, a more compact structural design can be achieved, improving sealing performance and service life, facilitating installation and maintenance, thereby enhancing the overall performance and ease of use of the water purifier 10.

[0047] Furthermore, the outer wall of the connecting part 121 is provided with a sealing flange 1211, which abuts against the inner wall of the connecting part 121 and the mounting hole 112.

[0048] By providing a sealing flange 1211 on the outer wall of the connection part 121, leakage of the check valve 120 can be effectively prevented, thereby significantly improving the sealing effect of the check valve 120. This design not only enhances the sealing performance of the water circuit device, but also ensures the efficient operation of the water purifier 10 and the safety of drinking water.

[0049] In some embodiments, the number of sealing flanges 1211 can be multiple, and the multiple sealing flanges 1211 are spaced apart along the axial direction of the connecting portion 121. By providing multiple sealing flanges 1211 to cooperate with the mounting hole 112, the sealing effect of the check valve 120 can be further improved. The arrangement of multiple sealing flanges 1211 allows the check valve 120 to distribute pressure more evenly when facing water flow impacts from different directions, preventing local sealing failure, thereby comprehensively improving the sealing performance and service life of the water circuit device.

[0050] Furthermore, the multiple sealing flanges 1211 help reduce minor leaks that may occur during the installation and use of the water system, improving the overall stability and reliability of the equipment. This design not only optimizes the sealing structure of the water system but also provides users with a safer and more convenient user experience.

[0051] In summary, in this embodiment, by providing multiple sealing flanges 1211 on the outer wall of the connecting part 121, the sealing effect of the check valve 120 can be significantly improved, the sealing performance and service life of the water circuit device 100 can be enhanced, and the efficient operation of the water purifier 10 and the safety of drinking water can be ensured.

[0052] In one embodiment, the connecting portion 121 is further provided with a magnet 1212, and the connecting portion 121 passes through the connecting hole 1213 communicating with the water flow channel 111. The valve plate 122 is movably connected to the connecting portion 121, and the valve plate 122 is used to open or close the connecting hole 1213. The magnetic attractor 123 is magnetically engaged with the magnet 1212.

[0053] In this embodiment, by providing a magnet 1212 on the connecting part 121, when the water flow is transported in the reverse direction along the water channel 111, the magnet 1212 can be attracted to the magnetic suction member 123, and the connecting hole 1213 is sealed by the valve plate 122, which effectively prevents water flow from leaking in the reverse direction and ensures the sealing and stability of the water system.

[0054] In some embodiments, the number of magnets 1212 and magnetic attractors 123 can be multiple. Specifically, the number of magnets 1212 and magnetic attractors 123 can be one, two, or more, and is not limited to a single number. Providing multiple magnets 1212 and magnetic attractors 123 can improve the reset efficiency of the valve plate 122, ensuring rapid closure of the connection hole 1213 when the water flow reverses, thereby further improving the sealing performance and reliability of the water circuit device 100.

[0055] Of course, in some embodiments, when the connecting part 121 is made of a ferromagnetic material, it can be directly attracted to the connecting part 121 by the magnetic attractor 123. This design not only simplifies the structure and reduces manufacturing costs, but also improves the attraction force between the magnetic attractor 123 and the connecting part 121, further enhancing the sealing effect of the valve plate 122. Specifically, the connecting part 121 can be made of ferromagnetic materials such as iron, nickel, and cobalt. These materials have good magnetism and can effectively cooperate with the magnetic attractor 123 to ensure that the valve plate 122 quickly seals the connecting hole 1213 when the water flow is reversed.

[0056] In one embodiment, one end of the valve plate 122 is rotatably connected to the connecting part 121, and the magnetic suction member 123 is disposed at the other end of the valve plate 122. This rotatable connection between the valve plate 122 and the connecting part 121 allows for rapid opening and closing of the check valve 120, ensuring smooth flow of water through the water passage 111 in the forward direction and rapid closure of the water passage 111 in the reverse direction. This design not only improves the response speed of the check valve 120 but also makes its overall structure more compact, reducing space occupation and improving the integration of the water circuit device 100.

[0057] By placing the magnetic attractor 123 at the other end of the valve plate 122, the adsorption stability between the magnetic attractor 123 and the magnet 1212 on the connecting part 121 can be guaranteed, ensuring that the valve plate 122 can firmly seal the connecting hole 1213 when the water flow is reversed, preventing water leakage. Specifically, the magnetic attractor 123 can be a permanent magnet or an electromagnet to adapt to different usage environments and requirements. Permanent magnets have persistent magnetism, require no external power supply, have a simple structure, and high reliability; while electromagnets can be controlled by an external power supply to turn the magnetism on and off, making them suitable for applications requiring remote control or automation.

[0058] Furthermore, the valve plate 122 can be made of flexible materials, such as silicone or rubber, to improve its durability and sealing performance under water flow impact. The flexible valve plate 122 can open quickly when the water flows in the forward direction, reducing water flow resistance, and can tightly fit the connection hole 1213 when the water flows in the reverse direction, ensuring a sealing effect. Specifically, the thickness of the valve plate 122 can be 1mm, 2mm, or 3mm, determined according to actual design requirements, and is not a single limitation. When the thickness of the valve plate 122 is less than 1mm, it may result in insufficient strength and easy damage; while when the thickness of the valve plate 122 is greater than 3mm, it may increase water flow resistance and affect the efficiency of the water system. Therefore, in actual design, it is advisable to choose within this preferred range to ensure the performance and service life of the valve plate 122.

[0059] Furthermore, the water circuit device 100 also includes a sealing assembly 140, which includes a sealing plug 141, a snap-fit ​​member 142, and a water circuit interface 143. The water circuit interface 143 is detachably connected to the water circuit plate 110 and accommodated within the water circuit channel 111. The sealing plug 141 is detachably connected to the water circuit interface 143 and seals the water circuit interface 143. The snap-fit ​​member 142 snaps into the water circuit interface 143 and fixes the sealing plug 141.

[0060] Specifically, the water interface 143 can be a quick-release interface for water passages. When it is necessary to seal the water passage 111, the sealing plug 141 can be inserted into the water interface 143 to block it. Then, the snap-fit ​​member 142 can be snapped into the opening of the water interface 143 to fix the sealing plug 141 inside the water interface 143. When it is necessary to remove the sealing plug 141, the snap-fit ​​member 142 can be separated from the water interface 143 to release the sealing plug 141. The disassembly and assembly are convenient.

[0061] Furthermore, the snap-fit ​​connection between the snap-fit ​​component 142 and the water interface 143 can be achieved in various ways, such as through snap-fit, thread, or plug-in connection. Specifically, the number of snap-fit ​​components 142 can be one, two, or more, and there is no single limitation. By providing multiple snap-fit ​​components 142, the sealing plug 141 can be fixed at different positions on the water interface 143, thereby enhancing the sealing effect and ensuring that the water system 100 will not leak during use. The provision of multiple snap-fit ​​components 142 can also improve the stability and reliability of the system and reduce the risk of seal failure due to the failure of a single snap-fit ​​component.

[0062] Through this design, the sealing component 140 not only achieves rapid sealing of the water flow channel 111, but also assists the check valve 120 in further improving the leak-proof performance of the water purifier 10. The use of the sealing plug 141 prevents water from flowing backward, ensuring the safety of the water purifier 10 during filter replacement or pipeline maintenance, while also providing users with a more convenient maintenance experience.

[0063] In summary, in this embodiment, by setting up a sealing assembly 140 consisting of a water inlet 143, a sealing plug 141, and a snap-fit ​​connector 142, rapid sealing of the water flow channel can be achieved, improving the leak-proof performance and ease of use of the water purifier, and ensuring the safe operation of the water purifier 10 and the user experience.

[0064] This utility model also provides a water purifier 10, which includes a water circuit device 100 and a filter element assembly 200 in any of the above embodiments; the water circuit device 100 further includes a connecting seat 130, and the water flow channel 111 is connected to the connecting seat 130; the filter element assembly 200 is detachably connected to the connecting seat 130. It can be understood that in the water purifier 10 of this embodiment, by setting the water circuit device 100 and the filter element assembly 200 to cooperate in any of the above embodiments, and by setting the water circuit device 100 to cooperate with the water circuit plate 110, the water leakage problem existing in the prior art is effectively solved.

[0065] In the water circuit device 100 of this embodiment, the water leakage problem existing in the prior art is effectively solved by setting a check valve 120 in cooperation with the water circuit plate 110. When the external pipeline is disassembled or the filter element assembly 200 is replaced, the check valve 120 can automatically close the water circuit channel 111 when the water flow is reversed, avoiding water leakage caused by water residue, thereby preventing water waste and internal pollution of the equipment. This design not only improves the sealing performance of the water circuit device 100, but also enhances the stability and reliability of the water circuit system, ensuring the efficient operation of the water purifier 10.

[0066] Furthermore, the check valve 120, through the cooperation of the valve plate 122 and the magnetic element 123, can open the valve plate 122 when the water flows in the forward direction, ensuring the normal operation of the water passage 111. When the water flows in the reverse direction, the magnetic element 123 can attract the connecting part 121 and seal the water passage 111, ensuring unidirectional water flow and avoiding potential safety hazards caused by disassembling pipes or replacing the filter element assembly 200. This design not only improves the sealing performance of the water device 100 but also enhances the stability and reliability of the water system, ensuring the efficient operation of the water purifier 10. Through the above technical solution, users can avoid the inconvenience of leaks when maintaining the water purifier 10 and replacing the filter element, thereby improving the safety and ease of use of the equipment.

[0067] Through the above technical solutions, users can avoid the problems caused by water leakage when maintaining the water purifier 10 and replacing the filter cartridges, thereby improving the safety and ease of use of the equipment. At the same time, the detachable connection design between the water circuit device 100 and the filter cartridge assembly 200 allows users to replace different types of filter cartridge assemblies 200 according to actual needs, in order to meet different water purification requirements, further enhancing the flexibility and applicability of the water purifier 10.

[0068] It should be noted that, in one embodiment, the water purifier 10 further includes a housing structure 300, which serves as a mounting carrier and is used to install the water circuit device 100 and the filter element assembly 200, thereby protecting the water circuit device 100 and the filter element assembly 200. The housing structure 300 can be made of plastic, metal, or composite materials. Specifically, the material of the housing structure 300 can be ABS plastic, polycarbonate (PC), or stainless steel, depending on the actual design requirements, and is not limited to a single material here.

[0069] The housing structure 300 not only provides mounting locations for the water system 100 and the filter element assembly 200, but also provides them with additional protection. For example, the housing structure 300 can prevent external environmental factors (such as dust, moisture, impact, etc.) from damaging the water system 100 and the filter element assembly 200, extending the service life of the equipment. At the same time, the design of the housing structure 300 can include multiple removable components, facilitating user maintenance and replacement of the filter element assembly 200.

[0070] It should be noted that the thickness of the housing structure 300 can be 2 mm, 3 mm, 4 mm, or 5 mm, depending on the actual design requirements, and is not a single limitation. When the thickness of the housing structure 300 is less than 2 mm, it may not provide sufficient protective strength; when the thickness is greater than 5 mm, it may increase the weight and cost of the device, affecting the user experience and portability.

[0071] In one embodiment, the filter element assembly 200 includes a filter element seat 210 and a filter element valve 220. The filter element seat 210 has a communicating receiving cavity 211 and an infusion port 212, and the infusion port 212 is connected to the water flow channel 111. The filter element valve 220 is movably housed in the receiving cavity 211, and the opening of the infusion port 212 is located on the inner wall of the receiving cavity 211. The connecting seat 130 has a seat body 131 and a connecting pipe 132 connected to each other. The seat body 131 is connected to the water flow plate 110, and the edge of the connecting pipe 132 has a connecting groove 1321. When the filter element assembly 200 is separated from the water flow device 100, the filter element valve 220 is sealed in the opening of the receiving cavity 211. When the connecting pipe 132 is inserted into the receiving cavity 211, the connecting pipe 132 drives the filter element valve 220 to move toward the inside of the receiving cavity 211 so that the connecting groove 1321 is connected to the infusion port 212.

[0072] Therefore, when the filter element assembly 200 is not connected to the water circuit device 100, the filter element valve 220 can seal the opening of the filter element seat 210, preventing water from flowing out of the filter element assembly 200 or entering from the outside, thereby avoiding water leakage and contamination of the filter element's interior. The filter element valve 220 can be a sliding valve or other type of valve made of plastic. Specifically, the material of the filter element valve 220 can be engineering plastics such as polypropylene (PP) and polyethylene (PE), depending on the actual design requirements, and is not limited to a single material here.

[0073] When the filter element assembly 200 is connected to the water circuit device 100, the connecting pipe 132 can push the filter element valve 220 towards the interior of the receiving cavity 211, so that the connecting slot 1321 can communicate with the infusion port 212, thereby enabling the filter element assembly 200 to communicate with the water flow channel 111 for water delivery and filtration. Specifically, the length of the connecting pipe 132 can be 20 mm, 25 mm, 30 mm, or 35 mm, depending on the actual design requirements, and is not limited here. It should be noted that when the length of the connecting pipe 132 is less than 20 mm, it may not be able to effectively push the filter element valve 220 to move, resulting in the inability to achieve communication between the filter element assembly 200 and the water flow channel 111; when the length is greater than 35 mm, the fit between the connecting pipe 132 and the receiving cavity 211 may be too tight, affecting the installation and disassembly of the filter element assembly 200.

[0074] Through the above technical solution, the connection design between the filter element assembly 200 and the water circuit device 100 not only improves the sealing performance of the water purifier 10, but also facilitates filter element replacement and maintenance for users, ensuring the efficient operation and ease of use of the water purifier 10. At the same time, this design also prevents water leakage during filter element replacement, further enhancing the safety of the water purifier 10 and the user experience.

[0075] Of course, in order to achieve the self-sealing function of the filter element assembly 200, in some embodiments, the filter element assembly 200 may also be provided with a return spring. The return spring is connected to the end face of the filter element valve 220 and the receiving cavity 211 respectively. When the filter element assembly 200 is separated from the water circuit device 100, the filter element valve 220 can close the opening of the receiving cavity 211 under the driving action of the return spring, ensuring that water will not flow out from the filter element assembly 200 or enter from the outside, thereby preventing water leakage and contamination of the filter element.

[0076] The return spring can be a compression spring, and its material can be stainless steel, copper alloy, nickel-titanium alloy, etc. Specifically, the spring stiffness coefficient of the return spring can be determined according to the actual design requirements, and there is no single limitation here. It should be noted that when the spring stiffness coefficient of the return spring is too small, it may not be able to provide sufficient driving force, so that the filter valve 220 cannot effectively close the receiving cavity 211; when the spring stiffness coefficient is too large, it may make the movement of the filter valve 220 too difficult, affecting the connection and separation of the filter assembly 200 and the water circuit device 100.

[0077] By incorporating a return spring, the filter element assembly 200 achieves a self-sealing function, further enhancing the leak-proof performance of the water purifier 10. When the filter element assembly 200 is separated from the water circuit device 100, the return spring automatically resets the filter valve 220 to the closed position, ensuring unidirectional water flow and avoiding potential safety hazards caused by disassembling pipes or replacing the filter element assembly 200. Simultaneously, this design facilitates filter element replacement and maintenance for users, enhancing the ease of use and safety of the equipment.

[0078] Furthermore, the filter element assembly 200 also includes a filter element sealing ring 230, which is housed within the receiving cavity 211 and is used to seal the space between the connecting pipe portion 132 and the inner wall of the receiving cavity 211.

[0079] Therefore, when the connecting pipe 132 is connected to the filter element assembly 200, the connecting pipe 132 can pass through the filter element sealing ring 230, and the filter element sealing ring 230 seals the connection pipe 132 and the inner wall of the receiving cavity 211. Specifically, the filter element sealing ring 230 can be made of elastic and corrosion-resistant materials such as rubber and silicone to ensure sealing performance under different working environments.

[0080] Furthermore, the filter element sealing ring 230 can be designed as a single-layer or double-layer structure. Specifically, the number of filter element sealing rings 230 can be one or two, without any unique limitation. Setting a double-layer filter element sealing ring 230 can further improve the sealing effect, prevent liquid or gas leakage, and thus improve the overall reliability of the system. It should be noted that the thickness of the filter element sealing ring 230 can be 1mm, 2mm, 3mm, 4mm, or 5mm, determined according to actual design requirements, without any unique limitation. When the thickness of the filter element sealing ring 230 is less than 1mm, it may lead to poor sealing performance, while when the thickness is greater than 5mm, it may increase installation difficulty and cost.

[0081] In one embodiment, the filter element holder 210 has a receiving groove 2111, which is connected to the opening of the receiving cavity 211. The filter element sealing ring 230 is housed in the receiving groove 2111. The filter element assembly 200 also includes a limiting plate 240, which is connected to the filter element holder 210 and covers the outside of the filter element sealing ring 230. The connecting pipe portion 132 passes through the limiting plate 240.

[0082] With this design, the limiting plate 240 can effectively fix the filter element sealing ring 230, preventing it from shifting during use, thereby ensuring the stability and reliability of the sealing effect. Specifically, the limiting plate 240 can be made of metal or high-strength plastic material to ensure its structural strength and durability.

[0083] Furthermore, the connection method between the limiting plate 240 and the filter element holder 210 can be threaded connection, snap-fit ​​connection, or welding, etc., depending on the actual design requirements, and is not limited here. The limiting plate 240 not only improves the fixing effect of the filter element sealing ring 230, but also facilitates the installation and maintenance of the filter element assembly 200.

[0084] Indeed, by placing the filter element sealing ring 230 within the receiving groove 2111, the combined structure of the filter element sealing ring 230 and the filter element seat 210 can be made more compact, thereby reducing the overall volume of the filter element assembly 200 and improving space utilization. This compact design not only helps save installation space but also enhances the overall structural stability of the filter element assembly 200. Furthermore, the design of the receiving groove 2111 ensures that the filter element sealing ring 230 maintains its correct position during installation and use, avoiding sealing problems caused by misalignment.

[0085] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0086] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0087] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A waterway device for a water purifier, characterized by, include: Water circuit board, with internal water flow channels; and A check valve is housed within the water passage. The check valve includes a connecting part, a valve plate, and a magnetic element. The valve plate is movably connected to the connecting part, and the magnetic element is connected to the valve plate. The valve plate is used to open the water passage when the water flows in the forward direction along the water passage; when the water flows in the reverse direction along the water passage, the magnetic element attracts the connecting part and closes the water passage through the valve plate.

2. The waterway device for a water purifier according to claim 1, wherein The water circuit board has an installation hole that communicates with the water flow channel, the connecting part is accommodated in the installation hole, and the valve plate is at least partially accommodated in the water flow channel.

3. The waterway device for a water purifier according to claim 2, wherein The outer wall of the connecting part is provided with a sealing flange, which abuts against the inner wall of the connecting part and the mounting hole.

4. The water path device for a water purifier according to claim 1, wherein The connecting part is also provided with a magnet, and the connecting part is provided through a connecting hole that communicates with the water flow channel. The valve plate is movably connected to the connecting part, and the valve plate is used to open or close the connecting hole. The magnetic attractant is magnetically engaged with the magnet.

5. The waterway device for a water purifier according to claim 4, wherein One end of the valve plate is rotatably connected to the connecting part, and the magnetic suction element is located at the other end of the valve plate.

6. The water path device for a water purifier according to claim 1, wherein The water circuit device further includes a sealing assembly, which includes a sealing plug, a snap-fit ​​component, and a water circuit interface. The water circuit interface is detachably connected to the water circuit plate and accommodated within the water circuit channel. The sealing plug is detachably connected to the water circuit interface and seals the water circuit interface. The snap-fit ​​component snaps into the water circuit interface and secures the sealing plug.

7. A water purifier characterized by comprising: include: The water system device according to any one of claims 1-6, the water system device further includes a connecting seat, and the water flow channel is connected to the connecting seat; as well as The filter element assembly is detachably connected to the connector.

8. The water purifier according to claim 7, characterized in that The filter element assembly includes a filter element seat and a filter element valve. The filter element seat has a connected receiving cavity and an infusion port, and the infusion port is connected to the water flow channel. The filter element valve is movably housed in the receiving cavity, and the opening of the infusion port is located on the inner wall of the receiving cavity. The connecting seat has a seat body and a connecting pipe connected together. The seat body is connected to the water flow plate, and the edge of the connecting pipe has a connecting groove. When the filter element assembly is separated from the water flow device, the filter element valve is sealed in the opening of the receiving cavity. When the connecting pipe is inserted into the receiving cavity, the connecting pipe drives the filter element valve to move toward the inside of the receiving cavity so that the connecting groove is connected to the infusion port.

9. The water purifier according to claim 8, characterized in that, The filter element assembly also includes a filter element sealing ring, which is housed within the receiving cavity and is used to seal the connection tube portion and the inner wall of the receiving cavity.

10. The water purifier according to claim 9, wherein The filter element holder has a receiving groove, which is connected to the opening of the receiving cavity, and the filter element sealing ring is housed in the receiving groove; the filter element assembly also includes a limiting plate, which is connected to the filter element holder and covers the outside of the filter element sealing ring, and the connecting pipe passes through the limiting plate.

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