Anti-blocking drain valve

By designing a sealing head partition chamber in the drain valve, ensuring that the water flow only flows between specific chambers, the problem of the drain valve being blocked due to the entanglement of solid debris in the sewage is solved, and more efficient drainage and longer service life is achieved.

CN119712862APending Publication Date: 2025-03-28WUHU LEJIA ELECTRICAL CO LTD
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Patent Information

Application Number
CN202510139974.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

During the drainage process, existing drainage valves are easily blocked due to the entanglement of solid debris in the sewage, resulting in a decrease in drainage efficiency.

Method used

An anti-blocking drain valve is designed, and a sealing head is used to separate the chamber to form an assembly chamber and a flowing chamber that is not connected to each other, so that the valve core is located in the assembly chamber, and the water flow only flows between the water inlet, outlet and flowing chamber to prevent sewage from contacting the valve core.

Benefits of technology

It effectively avoids sewage from contacting the valve core and debris wrapping on the valve core, reduces the probability of debris blockage, and improves the water-flow performance and service life of the drain valve.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of water valves, in particular to an anti-blocking drainage valve which comprises an electromagnetic assembly, a lower cover, an upper cover, a valve element and a plugging head, the lower cover is provided with a water inlet and a water outlet, a cavity is formed between the lower cover and the upper cover, the plugging head divides the cavity into an assembly cavity and a water flowing cavity which are not communicated with each other, and the water inlet and the water outlet are communicated with the water flowing cavity. The valve element and the plugging head are assembled, the valve element is located in the assembling cavity, and the plugging head can enable the water inlet and the water outlet to be separated or communicated. The plugging head divides the cavity into the assembly cavity and the water flowing cavity which are not communicated with each other, the valve element is located in the assembly cavity, and water flow only flows among the water inlet, the water outlet and the water flowing cavity, so that sewage is effectively prevented from making contact with the valve element, sundries are prevented from being wound on the valve element, and the situation that the drainage valve is blocked by the sundries is effectively reduced or even avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of water valves, and in particular to an anti-clogging drain valve. Background Art

[0002] Drain valves are generally used to drain wastewater. For example, the drain valve of a washing machine is used to drain wastewater after washing clothes, and the drain valve of a dishwasher is used to drain wastewater after washing. The wastewater contains some solid debris, such as hair, paper towels, food residues, etc. When the water valve is opened, the wastewater will contact the chamber where the valve core is located. The waste is easily entangled in the valve core or other components, causing the drain valve to be blocked. Summary of the invention

[0003] The purpose of the present invention is to solve one of the problems pointed out in the background technology and to propose an anti-clogging drain valve.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A blockage-proof drain valve comprises an electromagnetic assembly, a lower cover, an upper cover, a valve core and a plugging head, wherein the lower cover has a water inlet and a water outlet, a chamber is provided between the lower cover and the upper cover, the plugging head separates the chamber to form an assembly chamber and a water flow chamber which are not communicated with each other, the water inlet and the water outlet are connected to the water flow chamber, the valve core is assembled with the plugging head and the valve core is located in the assembly chamber, and the plugging head can separate or connect the water inlet and the water outlet.

[0006] The plugging head comprises a pressing edge and a plugging portion, the plugging portion is connected to the pressing edge via a flexible connecting portion, and the pressing edge sealing clamp is arranged between the lower cover and the upper cover.

[0007] The upper cover has an annular mounting groove, the pressing edge is at least partially located in the mounting groove, and the upper cover at least partially abuts against a side of the pressing edge away from the bottom wall of the mounting groove.

[0008] The flexible connection portion is in the shape of a bellows.

[0009] The flexible connection portion is a stepped cylinder structure.

[0010] The flexible connection part includes a first cylinder part, a second cylinder part, and a folding reel. One end of the first cylinder part is connected to the pressing edge and the other end is connected to the folding reel. The other end of the folding reel is connected to the second cylinder part. The other end of the second cylinder part is connected to the plugging part. The first cylinder part and the second cylinder part have an overlapping part, and the inner wall of the end of the first cylinder part is tangent to the outer wall of the second cylinder part.

[0011] The hemming reel has a bending portion, and the bending portion is far away from the overlapping portion.

[0012] The angle between the water inlet and the water outlet is less than 180 degrees;

[0013] and / or the flexible connection portion is directly opposite to the water inlet;

[0014] And / or the inner diameter of the water inlet is more than 11.5mm;

[0015] And / or the inner diameter of the water outlet is more than 11.5mm;

[0016] And / or the drainage flow rate of the drain valve is greater than or equal to 3L / min.

[0017] The drain valve further comprises a thrust spring, and the thrust spring is located in the assembly cavity.

[0018] One end of the thrust spring abuts against the inner wall of the upper cover, and the other end of the thrust spring abuts against the back of the plugging head;

[0019] And / or the upper cover is extended with a guide cylinder, the guide cylinder is at least partially located inside the electromagnetic assembly, and the valve core is at least partially located inside the guide cylinder;

[0020] And / or the coil of the electromagnetic component is a DC coil.

[0021] The present invention proposes an anti-clogging drain valve, which has the beneficial effect that the sealing head of the device separates the chambers to form an assembly chamber and a water flow chamber that are not connected to each other, so that the valve core is located in the assembly chamber, and the water only flows between the water inlet, the water outlet, and the water flow chamber, thereby effectively preventing sewage from contacting the valve core, preventing debris from being entangled on the valve core, and effectively reducing or even preventing debris from clogging the drain valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an existing drain valve;

[0023] Figure 2 It is a schematic diagram of the structure of the drain valve of the present invention;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the drain valve of the present invention;

[0025] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the drain valve of the present invention;

[0026] Figure 5 This is a schematic cross-sectional three-dimensional structural diagram of a first embodiment of the plugging head of the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of a second embodiment of the plugging head of the present invention.

[0028] In the figure: electromagnetic assembly 1, lower cover 2, water inlet 3, water outlet 4, plugging head 5, thrust spring 6, assembly chamber 7, mounting groove 8, upper cover 9, guide cylinder 10, valve core 11, pressure edge 12, plugging head 13, assembly groove 14, flexible connecting part 15, first cylinder part 16, second cylinder part 17, folding reel 18, water flow chamber 19, bending part 20, overlapping part 21. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 2-Figure 6 A blockage-proof drain valve comprises an electromagnetic assembly 1, a lower cover 2, an upper cover 9, a valve core 11, and a plugging head 5. The lower cover 2 has a water inlet 3 and a water outlet 4. A chamber is provided between the lower cover 2 and the upper cover 9. The plugging head 5 separates the chambers to form an assembly chamber 7 and a water flow chamber 19 which are not communicated with each other. The water inlet 3 and the water outlet 4 are connected to the water flow chamber 19. The valve core 11 is assembled with the plugging head 5 and the valve core 11 is located in the assembly chamber 7. The plugging head 5 can separate or connect the water inlet 3 and the water outlet 4.

[0031] The sealing head 5 of the device separates the chambers to form an assembly chamber 7 and a water flow chamber 19 which are not connected to each other, so that the valve core 11 is located in the assembly chamber 7, and the water will only flow between the water inlet 3, the water outlet 4, and the water flow chamber 19, thereby effectively preventing sewage from contacting the valve core 11, preventing debris from being entangled on the valve core, and effectively reducing or even preventing debris from clogging the drain valve.

[0032] As an implementation method, refer to Figure 2 , Figure 3 The sealing head 5 includes a pressing edge 12 and a plugging portion 13. The plugging portion 13 is connected to the pressing edge 12 through a flexible connecting portion 15. The pressing edge 12 sealing clamp is arranged between the lower cover 2 and the upper cover 9. The flexible connecting portion 15 is used to connect the pressing edge 12 and the plugging portion 13, so that the pressing edge 12, the plugging portion 13, and the flexible connecting portion 15 form an integrated partition component. By arranging the pressing edge 12 sealing clamp between the lower cover 2 and the upper cover 9, the chamber forms an assembly chamber 7 and a water flow chamber 19 that are not connected to each other, thereby preventing water from flowing in the assembly chamber 7 and the water flow chamber 19.

[0033] The upper cover 9 has an annular mounting groove 8, the pressing edge 12 is at least partially located in the mounting groove 8, and the upper cover 9 at least partially abuts against the side of the pressing edge 12 away from the bottom wall of the mounting groove 8, thereby improving the convenience and sealing of assembly through the mounting groove 8.

[0034] As an implementation manner, the flexible connection portion 15 is in the shape of a bellows, which facilitates the movement of the plugging portion 13 .

[0035] As another embodiment, refer to Figure 5 , Figure 4 The flexible connection part 15 is a stepped tube structure, which facilitates the contraction and release of the flexible connection part 15.

[0036] As another embodiment, refer to Figure 6 The flexible connecting portion 15 includes a first cylinder portion 16, a second cylinder portion 17, and a folding reel 18. One end of the first cylinder portion 16 is connected to the pressing edge 12 and the other end is connected to the folding reel 18. The other end of the folding reel 18 is connected to the second cylinder portion 17. The other end of the second cylinder portion 17 is connected to the plugging portion 13. The first cylinder portion 16 and the second cylinder portion 17 have an overlapping portion 21. The inner wall of the end of the first cylinder portion 16 is tangent to the outer wall of the second cylinder portion 17. The device is provided with a first cylinder portion 16 and a second cylinder portion 17, and the first cylinder portion 16 and the second cylinder portion 17 have an overlapping portion 21. When the plugging portion 13 contracts, the overlapping portion between the first cylinder portion 16 and the second cylinder portion 17 becomes larger, and the debris on the outer peripheral wall of the second cylinder portion 17 is scraped off by the first cylinder portion 16, thereby reducing the probability of debris adhering to the second cylinder portion 17 and reducing the probability of blockage.

[0037] As another embodiment, the folding reel 18 has a bending portion 20, and the bending portion 20 is far away from the overlapping portion 21. The folding reel 18 serves as a connecting portion between the first barrel portion 16 and the second barrel portion 17. When the plugging portion 13 repeatedly moves, the folding reel 18 needs to repeatedly bend. The bending portion 20 of the device is far away from the overlapping portion 21, so as to avoid the first barrel portion 16 and the second barrel portion 17 clamping the bending portion 20, which may cause the bending portion 20 to bend and crack due to transition. The fatigue resistance of the folding reel 18 is improved by the bending portion 20 that is not subject to external force, thereby greatly extending the service life of the plugging head 5. The plugging head 5 of the device is made of an integrated rubber material as a whole.

[0038] The angle between the water inlet 3 and the water outlet 4 is less than 180 degrees. For example, the water inlet 3 and the water outlet 4 adopt an angle of 90 degrees, which can shorten the length of the drainage channel and improve the drainage efficiency.

[0039] And / or the flexible connection part 15 is directly opposite to the water inlet 3, for example, the water inlet 3 and the water outlet 4 are at an angle of 90°, the water flow directly impacts the flexible connection part 15 and other parts of the plugging head 5, and the first cylinder part 16, the second cylinder part 17, and the folding drum 18 can be better rinsed with sewage;

[0040] and / or the inner diameter of the water inlet 3 is greater than 11.5 mm; and / or the inner diameter of the water outlet 4 is greater than 11.5 mm; and / or the drainage flow of the drain valve is greater than or equal to 3 L / min. Under certain calibers and water flow, the plugging head 5 can be better flushed to achieve the purpose of self-cleaning.

[0041] The drain valve also includes a thrust spring 6, which is located in the assembly cavity 7. The thrust spring 6 of the device is located in the assembly cavity 7, which further prevents sewage from contacting the thrust spring 6 and reduces the probability of clogging.

[0042] refer to Figure 4 , one end of the thrust spring 6 abuts against the inner wall of the upper cover 9, and the other end of the thrust spring 6 abuts against the back of the plugging head 13. The thrust spring 6 is placed between the upper cover 9 and the plugging head 13. The thrust of the thrust spring 6 directly acts on the plugging head 13, thereby improving the sealing performance of the sealing part between the plugging head 13 and the water inlet 3 and the water outlet 4 to avoid water leakage;

[0043] Furthermore, the inner diameter of the thrust spring 6 of the device is larger than the inner diameter of the portion blocking the water outlet 4, so that the force-applying portion of the thrust spring 6 will act between the plugging portion 13 and the inner wall of the lower cover 2, further improving the sealing performance.

[0044] And / or the upper cover 9 extends with a guide cylinder 10, the guide cylinder 10 is at least partially located inside the electromagnetic assembly 1, and the valve core 11 is at least partially located inside the guide cylinder 10; and / or the coil of the electromagnetic assembly 1 adopts a DC coil. The use of a DC coil is conducive to reducing the noise of the water valve, and because the thrust spring 6 is located between the upper cover and the plugging head 5, the material of the plugging head 5 can also absorb part of the noise, thereby further reducing the noise of the drain valve.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and inventive concept of the present invention by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. An anti-clogging drain valve, comprising an electromagnetic assembly (1), a lower cover (2), an upper cover (9), a valve core (11), and a plugging head (5), characterized in that: The lower cover (2) has a water inlet (3) and a water outlet (4); a chamber is provided between the lower cover (2) and the upper cover (9); the plugging head (5) separates the chamber to form an assembly chamber (7) and a water flow chamber (19) which are not connected to each other; the water inlet (3) and the water outlet (4) are connected to the water flow chamber (19); the valve core (11) is assembled with the plugging head (5) and the valve core (11) is located in the assembly chamber (7); the plugging head (5) can separate or connect the water inlet (3) and the water outlet (4).

2. The anti-clogging drain valve according to claim 1, characterized in that: The plugging head (5) comprises a pressing edge (12) and a plugging portion (13); the plugging portion (13) is connected to the pressing edge (12) via a flexible connecting portion (15); and the pressing edge (12) is sealingly clamped between the lower cover (2) and the upper cover (9).

3. The anti-clogging drain valve according to claim 2, characterized in that: The upper cover (9) has an annular mounting groove (8), the pressing edge (12) is at least partially located in the mounting groove (8), and the upper cover (9) at least partially abuts against a side of the pressing edge (12) away from the bottom wall of the mounting groove (8).

4. The anti-clogging drain valve according to claim 2, characterized in that: The flexible connection part (15) is in the shape of a bellows.

5. The anti-clogging drain valve according to claim 2, characterized in that: The flexible connecting portion (15) is a stepped cylinder structure.

6. The anti-clogging drain valve according to claim 2, characterized in that: The flexible connection part (15) includes a first cylinder part (16), a second cylinder part (17), and a folding drum (18). One end of the first cylinder part (16) is connected to the edge pressing (12), and the other end is connected to the folding drum (18). The other end of the folding drum (18) is connected to the second cylinder part (17). The other end of the second cylinder part (17) is connected to the plugging part (13). The first cylinder part (16) and the second cylinder part (17) have an overlapping part (21), and the inner wall of the end of the first cylinder part (16) is tangent to the outer wall of the second cylinder part (17).

7. The anti-clogging drain valve according to claim 6, characterized in that: The hemming reel (18) has a bending portion (20), and the bending portion (20) is far away from the overlapping portion (21).

8. An anti-clogging drain valve according to any one of claims 2 to 7, characterized in that: The angle between the water inlet (3) and the water outlet (4) is less than 180 degrees; and / or the flexible connection portion (15) is directly opposite to the water inlet (3); and / or the inner diameter of the water inlet (3) is greater than 11.5 mm; and / or the inner diameter of the water outlet (4) is greater than 11.5 mm; And / or the drainage flow rate of the drainage valve is greater than or equal to 3L / min.

9. An anti-clogging drain valve according to any one of claims 2 to 7, characterized in that: The drain valve further comprises a thrust spring (6), and the thrust spring (6) is located in the assembly cavity (7).

10. The anti-clogging drain valve according to claim 9, characterized in that: One end of the thrust spring (6) abuts against the inner wall of the upper cover (9), and the other end of the thrust spring (6) abuts against the back of the plugging portion (13); and / or the upper cover (9) is extended with a guide cylinder (10), the guide cylinder (10) is at least partially located inside the electromagnetic assembly (1), and the valve core (11) is at least partially located inside the guide cylinder (10); And / or the coil of the electromagnetic component (1) is a DC coil.