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; and the check valve comprises a connecting part and a flexible check valve plate, the check valve plate is arranged on one side of the connecting part, and the check valve plate is used for opening the water channel flow channel when the water flow forwards flows along the water channel flow channel and closing the water channel flow channel when the water flow reversely flows along the water channel flow channel. 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] The present application relates to the technical field of water purification equipment, in particular to a water path device for a water purifier and the water purifier. BACKGROUND

[0002] With the increasing emphasis on the safety and health of drinking water, the market for water purifiers has grown rapidly in recent years, becoming an indispensable water treatment device in homes and commercial premises. At present, most water purifiers on the market use various water path devices to achieve the filtering and purification functions of water sources. However, the existing water path devices still have some problems to be solved in terms of design and function, especially in terms of the sealing performance when the pipeline is disassembled.

[0003] Most existing water path devices for water purifiers adopt a single water path flow channel design and lack effective non-return measures. When the user needs to replace the filter cartridge or perform pipeline maintenance, the disassembly of the external pipeline often leads to leakage of the remaining water flow in the water path flow channel. This not only causes waste of water resources, but also may cause pollution inside the equipment, thereby affecting the working efficiency of the water purifier and the safety of drinking water. In addition, the water leakage problem may also cause water stains, mold and other safety hazards outside the equipment, making the user face unnecessary trouble and risks during use.

[0004] Therefore, it is necessary to improve the above problems to change the status quo. CONTENT OF THE INVENTION

[0005] The present application provides a water path device for a water purifier and the water purifier, which are used to solve the problem that the existing water purifiers are prone to water leakage when the pipeline is disassembled.

[0006] The first aspect of the present application provides a water path device for a water purifier, comprising:

[0007] a water path plate, which is internally provided with a water path flow channel; and

[0008] a non-return valve, which is accommodated in the water path flow channel; the non-return valve comprises a connecting portion and a flexible non-return valve sheet, the non-return valve sheet is arranged on one side of the connecting portion, the non-return valve sheet is used to open the water path flow channel when water flows in a forward direction along the water path flow channel, and the non-return valve sheet is used to close the water path flow channel when water flows in a reverse direction along the water path flow channel.

[0009] In a possible implementation manner, the water path plate is provided with a mounting hole communicating with the water path flow channel, the connecting portion is accommodated in the mounting hole, and the non-return valve sheet is at least partially accommodated in the water path flow channel.

[0010] In a possible implementation manner, an outer wall of the connecting portion is provided with a sealing flange, and the sealing flange abuts between the connecting portion and an inner wall of the mounting hole.

[0011] In a possible implementation, the check valve is arranged at an angle between the axial direction of the connecting portion.

[0012] In a possible implementation, the number of check valves is multiple, the multiple check valves are uniformly arranged along the circumferential direction of the connecting portion, and the ends of the multiple check valves away from the connecting portion contact to form a sealed hole, and the check valves are used to open or close the sealed hole.

[0013] In a possible implementation, the waterway device further comprises a sealing assembly, the sealing assembly comprises a sealing plug, a clamping piece, and a waterway interface, the waterway interface is detachably connected to the waterway plate and accommodated in the waterway flow channel, the sealing plug is detachably connected to the waterway interface and sealed to the waterway interface, and the clamping piece is clamped and connected with the waterway interface and fixes the sealing plug.

[0014] The second aspect of the present application provides a water purifier, comprising:

[0015] The waterway device as claimed in any one of the preceding claims, further comprising a connecting seat, and the waterway flow channel is communicated with the connecting seat; and

[0016] A filter element assembly is detachably connected to the connecting seat.

[0017] In a possible implementation, the filter element assembly comprises a filter element seat and a filter element valve, the filter element seat is provided with a receiving cavity and a liquid delivery hole in communication, and the liquid delivery hole is communicated with the waterway flow channel, the filter element valve is movably accommodated in the receiving cavity, and the opening of the liquid delivery hole is located on the inner wall of the receiving cavity; the connecting seat is provided with a seat body and a connecting pipe portion in connection, the seat body is connected to the waterway plate, and the edge of the connecting pipe portion is provided with a connecting slot; when the filter element assembly is separated from the waterway device, the filter element valve is sealed to the opening of the receiving cavity, and when the connecting pipe portion is inserted into the receiving cavity, the connecting pipe portion drives the filter element valve to move towards the inside of the receiving cavity, so that the connecting slot is communicated with the liquid delivery hole.

[0018] In a possible implementation, the filter element assembly further comprises a filter element sealing ring, the filter element sealing ring is accommodated in the receiving cavity, and the filter element sealing ring is used to seal between the connecting pipe portion and the inner wall of the receiving cavity.

[0019] In a possible implementation manner, the filter element seat is provided with a containing groove in communication with the opening of the containing cavity, and the filter element sealing ring is accommodated in the containing groove; the filter element assembly further comprises a limiting plate connected to the filter element seat, and the limiting plate covers the outer side of the filter element sealing ring, and the connecting pipe part penetrates through the limiting plate.

[0020] The embodiment of the present application has the following beneficial effects:

[0021] In the water path device of the embodiment, the check valve cooperates with the water path plate to effectively solve the water leakage problem in the prior art. When the external pipeline is disassembled or the filter element assembly is replaced, the check valve can automatically close the water path flow channel when the water flow reverses, avoiding the water leakage phenomenon caused by water residue, thereby preventing water resource waste and equipment internal pollution.

[0022] In addition, the check valve is made of flexible material, which can smoothly open when the water flow is in the forward direction, ensuring the normal operation of the water path flow channel, and quickly close when the water flow is in the reverse direction, ensuring the unidirectional flow of the water flow, avoiding potential safety hazards caused by disassembling the pipeline or replacing the filter element assembly. The design not only improves the sealing performance of the water path device, but also enhances the stability and reliability of the water path system, ensuring the efficient operation of the water purifier. Through the above technical scheme, the user can avoid the trouble caused by water leakage when maintaining and replacing the filter element of the water purifier, thereby improving the safety and convenience of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 A perspective view of the water purifier in the embodiment of the present application is shown;

[0025] Figure 2 A schematic view of the internal structure of the water purifier in the embodiment of the present application is shown;

[0026] Figure 3 A front view of the water path device in the embodiment of the present application is shown;

[0027] Figure 4 A sectional view along line A-A in Figure 3

[0028] Figure 5 ​An explosion schematic view of the filter core assembly in the embodiment of the utility model is shown.

[0029] Figure 6 A perspective view of the waterway device in the embodiment of the utility model is shown.

[0030] Figure 7 A cross-sectional schematic view of the combined state of the waterway device and the filter core assembly in the embodiment of the utility model is shown.

[0031] Figure 8 A perspective view of the check valve in the embodiment of the utility model is shown.

[0032] Reference signs:

[0033] 10 - water purifier;

[0034] 100 - waterway device; 110 - waterway plate; 111 - waterway flow channel; 112 - mounting hole; 120 - check valve; 121 - connecting part; 1211 - sealing flange; 122 - check valve piece; 1221 - sealing hole; 130 - connecting seat; 131 - seat body; 132 - connecting pipe part; 1321 - connecting notch; 140 - sealing assembly; 141 - sealing plug; 142 - clamping piece; 143 - waterway interface;

[0035] 200 - filter core assembly; 210 - filter core seat; 211 - containing cavity; 2111 - containing groove; 212 - infusion hole; 220 - filter core valve; 230 - filter core sealing ring; 240 - limiting plate;

[0036] 300 - shell structure. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0038] With the emphasis on the safety and health of drinking water, the market of water purifiers has rapidly grown in recent years, becoming an indispensable water treatment device in families and commercial places. At present, most of the water purifiers on the market use various waterway devices to realize the filtering and purifying functions of water sources. However, the existing waterway devices still have some problems to be solved in design and function, especially in the sealing aspect when the pipeline is disassembled.

[0039] Most of the existing water purifier waterway devices adopt a single waterway flow channel design, lacking effective non-return measures. When the user needs to replace the filter cartridge or perform pipe maintenance, the disassembly of the external pipe often leads to leakage of the remaining water flow in the waterway flow channel. This not only causes waste of water resources, but also can cause contamination inside the equipment, affecting the working efficiency of the water purifier and the safety of drinking water. In addition, the water leakage problem can also cause water stains, mold and other safety hazards outside the equipment, making the user face unnecessary trouble and risk during use.

[0040] Based on this, referring to Figures 1 to 8 The utility model embodiment provides a waterway device 100 for water purifier, it includes waterway board 110 and non return valve 120, waterway board 110 inside is equipped with waterway flow channel 111, non return valve 120 is housed in waterway flow channel 111, non return valve 120 includes connecting portion 121 and flexible non return valve piece 122, non return valve piece 122 is equipped in one side of connecting portion 121, non return valve piece 122 is used to open waterway flow channel 111 when water flows along waterway flow channel 111 normal direction, and non return valve piece 122 is used to close waterway flow channel 111 when water flows along waterway flow channel 111 reverse direction.

[0041] In the waterway device 100 of the embodiment, by setting the non-return valve 120 in cooperation with the waterway board 110, the water leakage problem existing in the prior art is effectively solved. When the external pipe is disassembled or the filter cartridge assembly 200 is replaced, the non-return valve 120 can automatically close the waterway flow channel 111 when the water flows in reverse, avoiding the water leakage phenomenon caused by water residue, thereby preventing water resource waste and equipment internal pollution.

[0042] In addition, the non-return valve 120 is made of flexible material, which can smoothly open when the water flows in the normal direction, ensuring the normal operation of the waterway flow channel 111, and quickly close when the water flows in the reverse direction, ensuring the unidirectional flow of the water flow, avoiding the potential safety hazards caused by disassembling the pipe or replacing the filter cartridge assembly 200. This design not only improves the sealing performance of the waterway device 100, but also enhances the stability and reliability of the waterway system, ensuring the efficient operation of the water purifier 10. Through the above technical scheme, the user can avoid the trouble caused by water leakage when maintaining and replacing the filter cartridge of the water purifier 10, thereby improving the safety and convenience of the equipment.

[0043] Specifically, the check valve 120 can be a rubber check valve or a silicone check valve. Both materials have excellent elasticity and sealing performance, which can effectively open the waterway flow channel 111 when the water flows in the forward direction, and quickly close the waterway flow channel 111 when the water flows in the reverse direction, thereby preventing water leakage. Compared with silicone check valves, rubber check valves have better high-temperature resistance and corrosion resistance, and are suitable for various water qualities and use environments. By selecting the appropriate check valve material, the sealing performance and service life of the waterway device 100 can be further improved, ensuring the efficient operation and safe use of the water purifier 10.

[0044] In an embodiment, the waterway plate 110 is provided with a mounting hole 112 communicating with the waterway flow channel 111, the connecting portion 121 is accommodated in the mounting hole 112, and the check valve piece 122 is at least partially accommodated in the waterway flow channel 111.

[0045] By providing the waterway plate 110 with a mounting hole 112 communicating with the waterway flow channel 111, the mounting hole 112 and the waterway flow channel 111 form a stepped hole. The design of the stepped hole not only positions the installation of the connecting portion 121 and ensures accurate installation, but also accommodates the check valve 120 in the mounting hole 112, making the combined structure of the check valve 120 and the waterway plate 110 more compact, reducing the volume of the entire waterway device, and facilitating installation and maintenance.

[0046] In addition, the design of the stepped hole also helps to improve the sealing performance of the waterway device 100. By forming a certain gap between the waterway flow channel 111 and the mounting hole 112, it can be ensured that the check valve 120 can quickly close the waterway flow channel 111 when the water flows in the reverse direction, preventing water leakage. This design not only improves the sealing performance of the waterway device 100, but also enhances the stability and reliability of the waterway system, ensuring the efficient operation of the water purifier 10.

[0047] In summary, in this embodiment, by providing the waterway plate 110 with a mounting hole 112 communicating with the waterway flow channel 111, and accommodating the connecting portion 121 and the check valve 120 therein, a more compact structure design can be achieved, the sealing performance and service life can be improved, and the installation and maintenance can be facilitated, thereby improving the overall performance and use convenience of the water purifier 10.

[0048] Further, the outer wall of the connecting portion 121 is provided with a sealing flange 1211, which abuts between the connecting portion 121 and the inner wall of the mounting hole 112.

[0049] By providing the connecting portion 121 with a sealing flange 1211, the phenomenon of liquid leakage of the check valve 120 can be effectively avoided, thereby significantly improving the sealing effect of the check valve 120. This design not only enhances the sealing performance of the waterway device, but also ensures the efficient operation of the water purifier 10 and the safety of drinking water.

[0050] In some embodiments, the number of sealing flanges 1211 can be multiple, and the multiple sealing flanges 1211 are arranged axially along the connecting portion 121. By matching the multiple sealing flanges 1211 with the mounting hole 112, the sealing effect of the check valve 120 can be further improved. The arrangement of multiple sealing flanges 1211 enables the check valve 120 to more evenly distribute pressure when facing water flow impact in different directions, preventing local sealing failure and thus improving the sealing performance and service life of the waterway device as a whole.

[0051] In addition, the arrangement of multiple sealing flanges 1211 also helps to reduce the possibility of minor leakage during installation and use of the waterway device, improving the overall stability and reliability of the equipment. This design not only optimizes the sealing structure of the waterway device, but also provides users with a safer and more convenient user experience.

[0052] In summary, in the present embodiment, by arranging multiple sealing flanges 1211 on the outer wall of the connecting portion 121, the sealing effect of the check valve 120 can be significantly improved, enhancing the sealing performance and service life of the waterway device, and ensuring the efficient operation of the water purifier 10 and the safety of drinking water.

[0053] Specifically, the check valve piece 122 is arranged at an angle between the axial direction of the connecting portion 121. The check valve piece 122 extends in the first direction from the connecting portion 121 along the axial direction of the connecting portion 121. By this arrangement, when the check valve 120 is applied in the waterway plate 110, and the water flow flows in the first direction, the water flow can drive the check valve piece 122 to deform and open the sealing hole 1221 for water flow transportation. Specifically, the angle can be 30°, 45°, 60°, 75°, which is specifically determined according to actual design requirements and is not limited herein.

[0054] When the water flow flows in the reverse direction of the first direction, the water flow will generate pressure on the outer surface of the check valve piece 122, thereby driving the check valve piece 122 to close the sealing hole 1221 to seal the waterway flow channel 111, thereby achieving the check effect of the check valve 120. This design not only improves the sealing performance of the waterway device, but also ensures that the water purifier 10 can effectively prevent water leakage during filter replacement or pipeline maintenance, avoiding water resource waste and equipment internal pollution.

[0055] Further, the number of check valve pieces 122 is multiple, and the multiple check valve pieces 122 are uniformly arranged along the circumferential direction of the connecting portion 121, and the ends of the multiple check valve pieces 122 away from the connecting portion 121 contact to form the sealing hole 1221, and the check valve piece 122 is used to open or close the sealing hole 1221. Specifically, the number of check valve pieces 122 can be one, two or more, which is not limited herein.

[0056] When the number of check valve pieces 122 is two, the two check valve pieces 122 can combine with the connecting part 121 to form a duckbill check valve to achieve the check effect. The design of the duckbill check valve has good sealing performance and anti-clogging performance, and can quickly close when the water flow reverses, preventing water flow leakage, thereby ensuring the safe operation of the water purifier 10. Through this design, the check valve 120 can effectively prevent the reverse flow of water flow, avoiding the waste of water resources and the pollution of the equipment inside.

[0057] When the number of check valve pieces 122 is multiple, the combination of multiple check valve pieces 122 can make the check valve 120 have a larger flow. This design not only improves the flow capacity of the check valve 120 when the water flow flows forward, but also provides more stable sealing effect when the water flow reverses. The setting of multiple check valve pieces 122 enables the check valve 120 to adapt to higher water pressure and larger flow requirements, further improving the performance and service life of the water purifier 10.

[0058] It should be noted that the number of check valve pieces 122 can be between 1 and 5, which is determined according to actual design requirements and is not limited herein. When the number of check valve pieces 122 exceeds 5, it may lead to the complication of the structure of the check valve 120, increasing the difficulty of manufacturing and installation, and reducing the stability and reliability of the equipment. At the same time, too many check valve pieces 122 may affect the flow efficiency of the water flow, reducing the water purification effect of the water purifier 10.

[0059] In an embodiment, the waterway device 100 further comprises a sealing assembly 140, which comprises a sealing plug 141, a clamping piece 142, and a waterway interface 143. The waterway interface 143 is detachably connected to the waterway plate 110 and accommodated in the waterway flow channel 111. The sealing plug 141 is detachably connected to the waterway interface 143 and sealed therein. The clamping piece 142 is clamped and connected to the waterway interface 143 and fixes the sealing plug 141.

[0060] Specifically, the waterway interface 143 can be a quick-release interface for waterway. When it is necessary to seal the waterway flow channel 111, the sealing plug 141 can be inserted into the waterway interface 143 to block it. Then, the clamping piece 142 is clamped in the opening of the waterway interface 143, so that the sealing plug 141 is fixed in the waterway interface 143. When it is necessary to remove the sealing plug 141, the clamping piece 142 is separated from the waterway interface 143 to release the sealing plug 141, which is convenient to disassemble and assemble.

[0061] In addition, the clamping manner of the clamping piece 142 and the waterway interface 143 can be various, such as clamping, screwing, plugging and the like. Specifically, the number of the clamping piece 142 can be one, two or more, which is not limited herein. By arranging multiple clamping pieces 142, the sealing plug 141 can be fixed at different positions of the waterway interface 143, so as to enhance the sealing effect and ensure that the waterway device 100 will not leak during use. The arrangement of multiple clamping pieces 142 can also improve the stability and reliability of the system, reducing the risk of sealing failure caused by a single clamping piece failure.

[0062] Through this design, the sealing assembly 140 can not only realize the rapid sealing of the waterway flow channel 111, but also assist the check valve 120 to further improve the leakage prevention performance of the water purifier 10. The use of the sealing plug 141 avoids the reverse flow of water flow, ensures the safety of the water purifier 10 during filter core replacement or pipeline maintenance, and also provides users with a more convenient maintenance operation experience.

[0063] In summary, in the present embodiment, by arranging the sealing assembly 140 composed of the waterway interface 143, the sealing plug 141 and the clamping piece 142, the rapid sealing of the waterway flow channel can be realized, the leakage prevention performance and the use convenience of the water purifier can be improved, and the safe operation and the user experience of the water purifier 10 can be ensured.

[0064] The utility model also provides a kind of water purifier 10, it includes the waterway device 100 and filter core assembly 200 in any one embodiment described above;Waterway device 100 further include connecting seat 130, and waterway flow channel 111 is communicated in connecting seat 130;Filter core assembly 200 is detachably connected in connecting seat 130.It can be understood that, in the water purifier 10 of the present embodiment, by arranging the waterway device 100 and filter core assembly 200 in any one embodiment described above cooperate, the waterway device 100 of the present embodiment is arranged by cooperating with waterway board 110 by check valve 120, effectively solve the water leakage problem existing in prior art.

[0065] When external pipeline is disassembled or filter core assembly 200 is replaced, check valve 120 can automatically close waterway flow channel 111 when water flow reverses, avoiding the leakage phenomenon caused by water flow residue, thereby preventing water resource waste and equipment internal pollution from occurring. This design not only improves the sealing performance of the waterway device 100, but also enhances the stability and reliability of the waterway system, ensuring efficient operation of the water purifier 10.

[0066] In addition, the check valve 120 is made of a flexible material, which can be smoothly opened when the water flows in the forward direction, ensuring the normal operation of the water channel 111, and quickly closed when the water flows in the reverse direction, ensuring the unidirectional flow of water, avoiding potential safety hazards caused by disassembling the pipeline or replacing the filter element assembly 200. The flexible material of the check valve 120 can be silica gel, rubber, etc. Specifically, the hardness of the check valve 120 can be 30A, 40A, 50A, 60A, which is determined according to the actual design requirements and is not limited here.

[0067] It should be noted that when the hardness of the check valve 120 is not within the above preferred range, for example, less than 30A or greater than 60A, the opening and closing sensitivity of the check valve 120 may be reduced, causing it to fail to quickly close the water channel 111 when the water flows in the reverse direction, affecting the check effect of the check valve 120, and further affecting the overall performance and safety of the water purifier 10.

[0068] Through the above technical solutions, the user can avoid the trouble caused by water leakage when maintaining and replacing the filter element of the water purifier 10, thereby improving the safety and convenience of the equipment. At the same time, the detachable connection design of the water channel device 100 and the filter element assembly 200 facilitates the user to replace different types of filter element assemblies 200 according to actual needs to meet different water purification needs, further improving the flexibility and applicability of the water purifier 10.

[0069] It should be noted that in an embodiment, the water purifier 10 further includes a housing structure 300, which serves as a mounting carrier, and its interior is used to mount the water channel device 100 and the filter element assembly 200 to protect the water channel device 100 and the filter element assembly 200. The housing structure 300 can be made of plastic, metal or composite material. Specifically, the material of the housing structure 300 can be ABS plastic, polycarbonate (PC) or stainless steel, which is determined according to the actual design requirements and is not limited here.

[0070] The housing structure 300 not only provides the mounting position of the water channel device 100 and the filter element assembly 200, but also provides additional protection for them. For example, the housing structure 300 can prevent external environmental factors (such as dust, moisture, impact, etc.) from damaging the water channel device 100 and the filter element assembly 200, prolonging the service life of the equipment. At the same time, the design of the housing structure 300 can include multiple detachable components, facilitating the user to maintain and replace the filter element assembly 200.

[0071] It should be noted that the thickness of the shell structure 300 can be 2 mm, 3 mm, 4 mm, 5 mm, and is determined according to actual design requirements, which is not limited herein. When the thickness of the shell structure 300 is less than 2 mm, it may not be able to provide sufficient protection 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 of the device.

[0072] Specifically, the filter element assembly 200 includes a filter element seat 210 and a filter element valve 220. The filter element seat 210 is provided with a receiving cavity 211 and a liquid outlet hole 212 in communication, and the liquid outlet hole 212 is communicated with the waterway flow channel 111. The filter element valve 220 is movably accommodated in the receiving cavity 211, and the opening of the liquid outlet hole 212 is located on the inner wall of the receiving cavity 211. The connecting seat 130 is provided with a seat body 131 and a connecting pipe portion 132 connected to each other. The seat body 131 is connected to the waterway plate 110, and the edge of the connecting pipe portion 132 is provided with a connecting slot 1321. When the filter element assembly 200 is separated from the waterway device 100, the filter element valve 220 is sealed to the opening of the receiving cavity 211. When the connecting pipe portion 132 is inserted into the receiving cavity 211, the connecting pipe portion 132 drives the filter element valve 220 to move towards the inside of the receiving cavity 211, so that the connecting slot 1321 is communicated with the liquid outlet hole 212.

[0073] Therefore, when the filter element assembly 200 is not connected to the waterway device 100, the filter element valve 220 can seal the opening of the filter element seat 210 to prevent water flow from flowing out of the filter element assembly 200 or from the outside, thereby avoiding water leakage and pollution of the inside of the filter element. The filter element valve 220 can be a sliding valve made of plastic or other forms of valve. Specifically, the material of the filter element valve 220 can be polypropylene (PP), polyethylene (PE), or other engineering plastics, which is determined according to actual design requirements, which is not limited herein.

[0074] When the filter element assembly 200 is connected to the waterway device 100, the connecting pipe portion 132 can push the filter element valve 220 to move towards the inside of the receiving cavity 211, so that the connecting slot 1321 can be communicated with the liquid outlet hole 212, so that the filter element assembly 200 is communicated with the waterway flow channel 111 for water flow delivery and filtration. Specifically, the length of the connecting pipe portion 132 can be 20 mm, 25 mm, 30 mm, 35 mm, which is determined according to actual design requirements, which is not limited herein. It should be noted that when the length of the connecting pipe portion 132 is less than 20 mm, the filter element valve 220 may not be effectively pushed to move, resulting in failure to realize the communication of the filter element assembly 200 with the waterway flow channel 111; when the length is greater than 35 mm, it may cause the connecting pipe portion 132 and the receiving cavity 211 to be too tight, affecting the installation and disassembly of the filter element assembly 200.

[0075] By the technical solution, the connection design of the filter element assembly 200 and the waterway device 100 not only improves the sealing performance of the water purifier 10, but also facilitates the replacement and maintenance of the filter element by the user, ensuring efficient operation and use convenience of the water purifier 10. At the same time, the design can also prevent water leakage during filter element replacement, further improving the safety and user experience of the water purifier 10.

[0076] Of course, in order to realize the self-sealing function of the filter element assembly 200, in some embodiments, the filter element assembly 200 can also be provided with a return spring, and the return spring is connected to the end face of the filter element valve 220 and the accommodating cavity 211 respectively. When the filter element assembly 200 is separated from the waterway device 100, the filter element valve 220 can close the opening of the accommodating cavity 211 under the driving action of the return spring, ensuring that the water flow does not flow out of the filter element assembly 200 or enter from the outside, thereby preventing water leakage and pollution of the inside of the filter element.

[0077] 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 actual design requirements, which is not uniquely limited here. It should be noted that when the spring stiffness coefficient of the return spring is too small, it may not provide enough driving force, so that the filter element valve 220 cannot effectively close the accommodating cavity 211; when the spring stiffness coefficient is too large, it may make the movement of the filter element valve 220 too difficult, affecting the connection and separation of the filter element assembly 200 and the waterway device 100.

[0078] By setting the return spring, the filter element assembly 200 can realize the self-sealing function, further improving the leakage prevention performance of the water purifier 10. When the filter element assembly 200 is separated from the waterway device 100, the return spring automatically resets the filter element valve 220 to the closed position, ensuring the one-way flow of water, and avoiding potential safety hazards caused by disassembling the pipeline or replacing the filter element assembly 200. At the same time, this design also facilitates the replacement and maintenance of the filter element by the user, enhancing the use convenience and safety of the equipment.

[0079] Further, the filter element assembly 200 further comprises a filter element sealing ring 230, which is accommodated in the accommodating cavity 211, and the filter element sealing ring 230 is used to seal between the connecting pipe portion 132 and the inner wall of the accommodating cavity 211.

[0080] Therefore, when the connecting pipe portion 132 is connected with the filter element assembly 200, the connecting pipe portion 132 can be arranged in the filter element sealing ring 230, and the filter element sealing ring 230 seals between the connecting pipe portion 132 and the inner wall of the accommodating cavity 211. Specifically, the filter element sealing ring 230 can be made of rubber, silicone or other materials with elasticity and corrosion resistance to ensure the sealing effect in different working environments.

[0081] In addition, the filter core sealing ring 230 can be designed as a single-layer or double-layer structure, and specifically, the number of the filter core sealing ring 230 can be one or two, which is not limited herein. The double-layer filter core sealing ring 230 can further improve the sealing effect and prevent liquid or gas leakage, thereby improving the overall reliability of the system. It should be noted that the thickness of the filter core sealing ring 230 can be 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm, which is determined according to actual design requirements and is not limited herein. When the thickness of the filter core sealing ring 230 is less than 1 mm, the sealing effect can be poor, and when the thickness is greater than 5 mm, the installation difficulty and cost can be increased.

[0082] In an embodiment, the filter core seat 210 is provided with a receiving groove 2111, which is communicated with the opening of the receiving cavity 211, and the filter core sealing ring 230 is accommodated in the receiving groove 2111. The filter core assembly 200 further comprises a limiting plate 240 connected to the filter core seat 210, and the limiting plate 240 covers the outer side of the filter core sealing ring 230, and the connecting pipe portion 132 is arranged in the limiting plate 240.

[0083] Through this arrangement, the limiting plate 240 can effectively fix the filter core sealing ring 230 to prevent displacement 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.

[0084] In addition, the connection between the limiting plate 240 and the filter core seat 210 can be threaded connection, buckle connection, or welding, which is determined according to actual design requirements and is not limited herein. The limiting plate 240 not only improves the fixing effect of the filter core sealing ring 230, but also facilitates the installation and maintenance of the filter core assembly 200.

[0085] Indeed, by arranging the filter core sealing ring 230 in the receiving groove 2111, the combined structure of the filter core sealing ring 230 and the filter core seat 210 can be more compact, thereby reducing the volume of the entire filter core assembly 200 and improving the space utilization. This compact design not only helps to save installation space, but also enhances the overall structural stability of the filter core assembly 200. In addition, the design of the receiving groove 2111 can ensure that the filter core sealing ring 230 maintains the correct position during installation and use, avoiding poor sealing problems caused by positional deviation.

[0086] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0087] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0088] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0089] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0090] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A water circuit device for a water purifier, characterized in that, 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 portion and a flexible check valve plate. The check valve plate is disposed on one side of the connecting portion. The check valve plate is used to open the water passage when the water flows in the forward direction along the water passage, and the check valve plate is used to close the water passage when the water flows in the reverse direction along the water passage.

2. The water circuit device for a water purifier according to claim 1, characterized in that, 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 check valve plate is at least partially accommodated in the water flow channel.

3. The water circuit device for a water purifier according to claim 2, characterized in that, 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 circuit device for a water purifier according to claim 1, characterized in that, The check valve plate is set at an angle to the axial direction of the connecting part.

5. The water circuit device for a water purifier according to claim 1, characterized in that, The number of check valve plates is multiple, and the multiple check valve plates are evenly arranged along the circumferential direction of the connecting part. The ends of the multiple check valve plates away from the connecting part are in contact to form a sealing hole. The check valve plates are used to open or close the sealing hole.

6. The water circuit device for a water purifier according to claim 1, characterized in that, 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 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 ​​component snaps into the water circuit interface and secures the sealing plug.

7. A water purifier, characterized in that, 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, characterized in that, 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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