A water valve with quick-release filter screen

Abstract

The utility model relates to water valve technical field especially a kind of water valve with quick detachable filter screen, including valve main body, located the water inlet end with one side of valve main body, located the water outlet end with one side of valve main body, located the filter assembly between the valve main body and the water inlet end, the filter assembly includes the containing shell integrated with water inlet end, the containing shell has the containing groove cavity with one end open, the containing shell detachably installs the filter piece of integral type, the filter piece and the containing shell seal assembly, and the filter piece insertion containing groove cavity direction is perpendicular or acute angle with water inlet end axis direction. The device filter insertion direction is perpendicular or acute angle with the axis direction of water inlet end, can realize compact arrangement in limited space, while it is convenient for user to directly pull out and disassemble, significantly improve the convenience of filter screen cleaning and maintenance, reduce maintenance cost, improve the service life and reliability of water valve.

Description

Technical Field

[0001] This utility model relates to the field of water valve technology, and in particular to a water valve with a quick-release filter screen. Background Technology

[0002] A water valve is a key component used to control the opening and closing of water circuits, regulate water flow, or switch water direction. It is widely used in household appliances such as washing machines and dishwashers. Because water often contains impurities, a filter screen is usually installed at the water valve inlet to prevent these impurities from entering the valve's internal mechanisms or downstream equipment and causing blockages, wear, or performance degradation. This filter screen is used to initially filter impurity particles, ensuring the stable and safe operation of the water system.

[0003] In existing technologies, filter screens are generally installed inside water valves, mostly in an embedded or snap-fit ​​configuration, typically inserted from the water valve inlet. While this structure effectively filters impurities, over long-term use, the filter screen surface is prone to clogging with scale and impurities, leading to a significant decrease in water flow and even causing malfunctions in the water valve.

[0004] When the filter screen becomes clogged, users or maintenance personnel often need to shut off the water supply and disassemble the entire water valve to remove the filter screen for cleaning or replacement. This is not only cumbersome and time-consuming, but it can also easily cause wear and tear on the water valve's sealing components or misalignment of the installation position, affecting the reliability of subsequent use. Utility Model Content

[0005] The purpose of this utility model is to solve the problems pointed out in the background art by proposing a water valve with a quick-release filter screen.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water valve with a quick-release filter screen includes a valve body, an inlet end located on one side of the valve body, an outlet end located on one side of the valve body, and a filter assembly located between the valve body and the inlet end. The filter assembly includes a receiving shell integrally formed with the inlet end, the receiving shell having a receiving groove cavity with one open end, and an integral filter element detachably installed on the receiving shell. The filter element is sealed and assembled with the receiving shell, and the direction in which the filter element is inserted into the receiving groove cavity is perpendicular to or at an acute angle to the axial direction of the inlet end.

[0008] The filter element includes a filter body, the top of which is integrally provided with an edge portion, the edge portion abutting against the top of the receiving shell and fixed by fasteners, the filter body is integrally provided with a filter screen portion, and the water valve includes a first flow channel and a second flow channel, the first flow channel being located between the water inlet end and the filter screen portion, and the second flow channel being located between the filter screen portion and the valve body;

[0009] And / or, the fastener is a screw or bolt, the end of the receiving shell has an assembly hole, and the fastener passes through the edge and is threaded into the assembly hole.

[0010] The filter body has a first water storage chamber integrally formed on the side of the filter screen section near the first flow channel, and the opening area of ​​the first water storage chamber is larger than the cross-sectional area of ​​the first flow channel.

[0011] And / or the filter body is integrally formed with a second water storage chamber on the side of the filter screen section near the second flow channel, and the opening area of ​​the second water storage chamber is larger than the cross-sectional area of ​​the second flow channel;

[0012] And / or the cross-sectional area of ​​the first flow channel is greater than the cross-sectional area of ​​the second flow channel.

[0013] The receiving shell includes a first shell portion located on the upper side of the water inlet end and a second shell portion located on the lower side of the water inlet end. The receiving cavity includes a first cavity portion, a second cavity portion, and a third cavity portion arranged sequentially from the outside to the inside. The first cavity portion is located in the first shell portion. The second cavity portion is connected to the first flow channel and the second flow channel. The third cavity portion is located in the second shell portion. The filter body passes through the first cavity portion and the second cavity portion and is at least partially located in the third cavity portion. The filter screen portion is located in the second cavity portion.

[0014] The outer peripheral wall of at least a portion of the cross-section of the filter body is elliptical, and the cross-section of at least a portion of the inner peripheral wall of the receiving cavity is elliptical.

[0015] The filter body is an elliptical cylinder with a partition in the middle. The partition has filter holes, a first water storage chamber on one side of the partition, and a second water storage chamber on the other side of the partition.

[0016] The filter body has a first outer wall and a second outer wall adjacent to the edge. The cross-section of the first outer wall is larger than the cross-section of the second outer wall. The receiving cavity has a first inner wall adapted to the first outer wall and a second inner wall tangent to the second outer wall.

[0017] The first outer wall has several annular grooves, and a second O-ring is provided in the annular groove. The second O-ring seal is sealed and abuts against the first inner wall.

[0018] The water inlet end is threaded with a connector, and the connector is snapped with a quick-connect clip. The quick-connect clip has a backed-out portion. The inner wall of the water inlet end has a stepped hole with a first stepped surface. A first O-ring and a ring are arranged sequentially from the inside to the outside in the stepped hole. One side of the first O-ring abuts against the first stepped surface, and one side of the first O-ring abuts against the ring. The other side of the ring abuts against the backed-out portion.

[0019] The inner diameter of the inlet is larger than the inner diameter of the outlet.

[0020] The present invention proposes a water valve with a quick-release filter screen, which has the following advantages: the filter element of this device is inserted perpendicular to or at an acute angle to the axis of the water inlet, which can achieve a compact arrangement in a limited space. At the same time, it is convenient for users to directly pull it out and disassemble, which significantly improves the convenience of filter screen cleaning and maintenance, reduces maintenance costs, and improves the service life and reliability of the water valve. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0023] Figure 3 This is a schematic diagram of the semi-sectional three-dimensional structure of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the filter body of this utility model;

[0025] Figure 5 This is a schematic diagram of the main structure of the filter body of this utility model;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the water valve housing of this utility model;

[0027] Figure 7 This is a schematic diagram of a half-section of the filter body of this utility model;

[0028] Figure 8 This is a bottom view of the filter body structure of this utility model.

[0029] In the diagram: 1. Quick-connect clip; 2. Connector; 3. Inlet; 4. Filter assembly; 5. Housing shell; 6. Filter element; 7. Fastener; 8. Valve body; 9. Outlet; 10. Inverted part; 11. Ring body; 12. First O-ring seal; 13. First step surface; 14. First flow channel; 15. Second flow channel; 16. First water storage chamber; 17. Second water storage chamber; 18. Filter screen part; 19. Housing cavity; 20. Filter body; 21. Second O-ring seal; 22. Edge; 23. First outer wall; 24. Second outer wall; 25. First inner wall; 26. Second inner wall; 27. First shell part; 28. Second shell part; 29. ​​First cavity part; 30. Second cavity part; 31. Third cavity part; 32. Assembly hole; 33. Annular groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figures 1-8 A water valve with a quick-release filter screen includes a valve body 8, an inlet end 3 on one side of the valve body 8, and an outlet end 9 on one side of the valve body 8. A filter assembly 4 is provided between the valve body 8 and the inlet end 3. The filter assembly 4 includes a receiving shell 5 integrally formed with the inlet end 3. The receiving shell 5 has a receiving groove 19 with one open end. An integral filter element 6 is detachably installed on the receiving shell 5. The filter element 6 is sealed and assembled with the receiving shell 5, and the direction in which the filter element 6 is inserted into the receiving groove 19 is perpendicular to or at an acute angle to the axial direction of the inlet end 3.

[0032] When water enters from the inlet end 3, it first passes through the filter assembly 4 located between the valve body 8 and the inlet end 3. The receiving shell 5 in the filter assembly 4 is integrally formed with the inlet end 3, and its interior forms an open receiving cavity 19. The water flows through the receiving cavity 19 into the filter element 6 installed inside. The filter element 6 is sealed to the receiving shell 5. When the water flows through, impurities in the water are trapped by the filter screen inside the filter element 6, achieving preliminary purification of the incoming water.

[0033] After a period of use, if impurities adhere to the surface of the filter element 6, causing a decrease in flow rate, the user does not need to disassemble the entire valve body 8. Simply pull out the filter element 6 radially along the inlet end 3 to remove it for cleaning or replacement. After cleaning, insert the filter element 6 back into the receiving cavity 19 along its original direction and seal it for reassembly, restoring normal operation. Through this structural design, the filter assembly 4 achieves convenient disassembly and maintenance while ensuring filtration effectiveness.

[0034] Since the insertion direction of the filter element 6 is perpendicular to or at an acute angle to the axis of the water inlet 3, it can be compactly arranged in a limited space. At the same time, it is convenient for users to directly pull it out and disassemble it, which significantly improves the convenience of filter cleaning and maintenance, reduces maintenance costs, and improves the service life and reliability of the water valve.

[0035] The filter element 6 includes a filter body 20, the top of which is integrally provided with a flange 22. The flange 22 abuts against the top of the housing 5 and is fixed by a fastener 7. The filter body 20 is integrally provided with a filter screen 18. The water valve includes a first flow channel 14 and a second flow channel 15. The first flow channel 14 is located between the end of the water inlet 3 and the filter screen 18, and the second flow channel 15 is located between the filter screen 18 and the valve body 8. And / or, the fastener 7 is a screw or bolt. The end of the housing 5 is provided with an assembly hole 32. The fastener 7 passes through the flange 22 and is threadedly connected to the assembly hole 32.

[0036] By using the abutment of the edge 22 of the hand-tightened screw or the flathead screw and the top of the housing 5, and the threaded fastener 7, the filter body 20 is fixed inside the housing 5. The filter screen 18 is located between the first flow channel 14 and the second flow channel 15, which can effectively intercept impurity particles entering from the water inlet 3 and achieve continuous filtration.

[0037] refer to Figure 2 , Figure 4 The filter body 20 is integrally formed with a first water storage chamber 16 on the side of the filter screen 18 near the first flow channel 14, and the opening area of ​​the first water storage chamber 16 is larger than the cross-sectional area of ​​the first flow channel 14; and / or the filter body 20 is integrally formed with a second water storage chamber 17 on the side of the filter screen 18 near the second flow channel 15, and the opening area of ​​the second water storage chamber 17 is larger than the cross-sectional area of ​​the second flow channel 15; and / or the cross-sectional area of ​​the first flow channel 14 is larger than the cross-sectional area of ​​the second flow channel 15.

[0038] When water enters from the inlet 3, it first flows through the first flow channel 14 into the first water storage chamber 16 inside the filter body 20. Because the opening area of ​​the first water storage chamber 16 is larger than the cross-sectional area of ​​the first flow channel 14, the water flow velocity slows down after entering this area, and the fluid forms a uniform diffusion within the larger chamber, thus achieving sufficient filtration at the filter screen 18. The filtered water then flows through the filter screen 18 into the second water storage chamber 17, and through the second flow channel 15 to the valve body 8 and the outlet 9. The opening area of ​​the second water storage chamber 17 is larger than the cross-sectional area of ​​the second flow channel 15, allowing the filtered water to drain smoothly and avoiding local backflow or pressure fluctuations caused by restricted flow.

[0039] This device, by setting a first water storage chamber 16 and a second water storage chamber 17 on both sides of the filter body 20, provides buffering and diffusion space for water flow before and after entering and exiting the filter screen section 18, improving the distribution of fluid on the filter screen surface and avoiding local clogging caused by single-point impact. The larger volume of the first water storage chamber 16 increases the filtration area, which is conducive to the full separation and interception of impurities, viscous substances, and granular materials, thereby significantly improving filtration efficiency and stability. The enlarged outlet of the second water storage chamber 17 facilitates high-flow discharge, reduces water flow resistance, and ensures the smooth flow of the overall water path. In summary, this structure not only improves filtration performance but also extends the service life of the filter screen section 18 and improves the long-term reliable operation of the water valve.

[0040] The housing 5 includes a first housing portion 27 located on the upper side of the water inlet end 3 and a second housing portion 28 located on the lower side of the water inlet end 3. The housing cavity 19 includes a first cavity portion 29, a second cavity portion 30, and a third cavity portion 31 arranged sequentially from the outside to the inside. The first cavity portion 29 is located in the first housing portion 27. The second cavity portion 30 is connected to the first flow channel 14 and the second flow channel 15. The third cavity portion 31 is located in the second housing portion 28. The filter body 20 passes through the first cavity portion 29 and the second cavity portion 30 and is at least partially located in the third cavity portion 31. The filter screen portion 18 is located in the second cavity portion 30.

[0041] Water enters from the inlet 3 and flows sequentially through the first flow channel 14, the second cavity 30, and the filter screen 18, then flows through the second flow channel 15 to the valve body 8 and the outlet 9. The receiving shell 5 consists of a first shell 27 and a second shell 28, forming a continuous receiving cavities 19 inside. The receiving cavities 19, from the outside in, include a first cavity 29, a second cavity 30, and a third cavity 31. The filter body 20 passes through the first cavity 29 and the second cavity 30, and at least partially extends into the third cavity 31, forming a stable seal. The first cavity 29 seals against the outer wall of the filter body 20 to prevent unfiltered water from leaking from the interface; the second cavity 30 serves as the main filtration area, where the filter screen 18 is located, allowing the incoming water to be effectively filtered within this area; the third cavity 31 acts as a water flow transition and guide, allowing the filtered water to smoothly enter the second flow channel 15 for continuous flow. Through the design of the first shell 27, the second shell 28 and the multi-stage cavity structure, the filter body 20 forms a partition seal with the housing shell 5 after assembly, ensuring that the water flow can only be filtered through the filter screen 18 along the set path, avoiding bypass leakage.

[0042] The filter body 20 has at least a portion of its outer peripheral wall in an elliptical shape, and the receiving cavity 19 has at least a portion of its inner peripheral wall in an elliptical shape. By adopting an elliptical structural fit, compared to a traditional circular insert structure, the filter body 20's resistance to rotation and impact stability within the receiving cavity 19 is significantly improved, ensuring a long-term reliable seal. This structure not only effectively prevents the filter body from loosening under high-pressure water flow but also improves overall assembly precision and sealing performance, thereby ensuring that water flows stably through the filter screen 18 during operation, further enhancing the water valve's operational safety and service life.

[0043] The filter body 20 is an elliptical cylinder with a partition in the middle. The partition has filter holes. There is a first water storage chamber 16 on one side of the partition and a second water storage chamber 17 on the other side of the partition. The structure is simple to form and the filter screen structure is more durable. The thickness of the filter screen can be better controlled. Compared with the traditional filter screens that are only a few tenths of a millimeter thick, this filter screen can be 1-5 millimeters thick, making it more robust.

[0044] The filter body 20 has a first outer wall 23 and a second outer wall 24 adjacent to the edge 22. The cross-section of the first outer wall 23 is larger than the cross-section of the second outer wall 24. The receiving cavity 19 has a first inner wall 25 adapted to the first outer wall 23 and a second inner wall 26 tangent to the second outer wall 24. The flared structure facilitates the insertion of the filter body 20 into the receiving cavity 19 and provides a double sealing effect between the outer and inner walls.

[0045] The first outer wall 23 has several annular grooves 33, and a second O-ring 21 is provided in the annular groove 33. The second O-ring 21 seals against the first inner wall 25. The structure is simple, further improving the sealing effect and making installation convenient. The entire second O-ring 21 will not be exposed to the outside, thus improving safety.

[0046] The inlet end 3 is threadedly connected to a connector 2, which is snapped into a quick-connect clamp 1. The quick-connect clamp 1 has a backlash portion 10. The inner wall of the inlet end 3 has a stepped hole with a first stepped surface 13. A first O-ring seal 12 and a ring 11 are sequentially arranged from the inside out within the stepped hole. One side of the first O-ring seal 12 abuts against the first stepped surface 13, and another side abuts against the ring 11. The other side of the ring 11 abuts against the backlash portion 10. The inner diameter of the inlet end 3 is larger than the inner diameter of the outlet end 9, allowing the outlet end 9 to be directly inserted into external equipment. By setting a stepped hole structure at the inlet end 3 and installing the first O-ring seal 12, ring 11, and backlash portion 10, multi-level limiting and clamping fixation are achieved, making the installation position of the seal more stable and preventing loosening or buckling during assembly due to repeated opening and closing or water pressure fluctuations. This structure effectively improves the sealing reliability of the water valve and prevents leakage.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water valve with a quick-release filter screen, comprising a valve body (8), an inlet end (3) located on one side of the valve body (8), and an outlet end (9) located on one side of the valve body (8), characterized in that, A filter assembly (4) is provided between the valve body (8) and the water inlet (3). The filter assembly (4) includes a receiving shell (5) integrally formed with the water inlet (3). The receiving shell (5) has a receiving groove (19) with one end open. An integral filter element (6) is detachably installed on the receiving shell (5). The filter element (6) is sealed and assembled with the receiving shell (5), and the direction in which the filter element (6) is inserted into the receiving groove (19) is perpendicular to or at an acute angle to the axial direction of the water inlet (3). The filter element (6) includes a filter body (20), the top of which is integrally provided with a flange (22), the flange (22) abuts against the top of the housing (5) and is fixed by fasteners (7), the filter body (20) is integrally provided with a filter screen (18), the water valve includes a first flow channel (14) and a second flow channel (15), the first flow channel (14) is located between the end of the water inlet (3) and the filter screen (18), and the second flow channel (15) is located between the filter screen (18) and the valve body (8); The fastener (7) is a screw or bolt, and the end of the housing (5) is provided with an assembly hole (32). The fastener (7) passes through the edge (22) and is threadedly connected to the assembly hole (32). The receiving shell (5) includes a first shell part (27) located on the upper side of the water inlet end (3) and a second shell part (28) located on the lower side of the water inlet end (3). The receiving cavity (19) includes a first cavity part (29), a second cavity part (30), and a third cavity part (31) arranged sequentially from the outside to the inside. The first cavity part (29) is located in the first shell part (27). The second cavity part (30) is connected to the first flow channel (14) and the second flow channel (15). The third cavity part (31) is located in the second shell part (28). The filter body (20) passes through the first cavity part (29) and the second cavity part (30) and is at least partially located in the third cavity part (31). The filter screen part (18) is located in the second cavity part (30).

2. A water valve with a quick-release filter screen according to claim 1, characterized in that, The filter body (20) is integrally formed with a first water storage chamber (16) on the side of the filter screen part (18) near the first flow channel (14), and the opening area of ​​the first water storage chamber (16) is larger than the cross-sectional area of ​​the first flow channel (14). And / or the filter body (20) is integrally formed with a second water storage chamber (17) on the side of the filter part (18) near the second flow channel (15), and the opening area of ​​the second water storage chamber (17) is larger than the cross-sectional area of ​​the second flow channel (15); And / or the cross-sectional area of ​​the first flow channel (14) is greater than the cross-sectional area of ​​the second flow channel (15).

3. A water valve with a quick-release filter screen according to any one of claims 1-2, characterized in that, The outer peripheral wall of at least part of the cross-section of the filter body (20) is elliptical, and the cross-section of at least part of the inner peripheral wall of the receiving cavity (19) is elliptical.

4. A water valve with a quick-release filter screen according to claim 3, characterized in that, The filter body (20) is an elliptical cylinder. The filter body (20) has a partition in the middle, the partition has filter holes, a first water storage chamber (16) is located on one side of the partition, and a second water storage chamber (17) is located on the other side of the partition.

5. A water valve with a quick-release filter screen according to claim 4, characterized in that, The filter body (20) has a first outer wall (23) and a second outer wall (24) adjacent to the first outer wall (23) on the side near the edge (22). The cross-section of the first outer wall (23) is larger than the cross-section of the second outer wall (24). The receiving cavity (19) has a first inner wall (25) adapted to the first outer wall (23) and a second inner wall (26) tangent to the second outer wall (24).

6. A water valve with a quick-release filter screen according to claim 5, characterized in that, The first outer wall (23) has a plurality of annular grooves (33), and a second O-ring (21) is provided in the annular groove (33). The second O-ring (21) seals against the first inner wall (25).

7. A water valve with a quick-release filter screen according to any one of claims 1-2 and 4-6, characterized in that, The water inlet end (3) is threaded with a connector (2), and the connector (2) is snapped with a quick-connect clip (1). The quick-connect clip (1) has a buckle (10). The inner wall of the water inlet end (3) has a stepped hole with a first stepped surface (13). The stepped hole is provided with a first O-ring seal (12) and an annulus (11) from the inside to the outside. One side of the first O-ring seal (12) abuts against the first stepped surface (13), and one side of the first O-ring seal (12) abuts against the annulus (11). The other side of the annulus (11) abuts against the buckle (10).

8. A water valve with a quick-release filter screen according to claim 7, characterized in that, The inner diameter of the inlet end (3) is larger than the inner diameter of the outlet end (9).

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