Sealing odor-proof valve
By introducing deformable sealing components, including a sealing ring and a sealing cap, into the odor-proof valve, the problem of poor sealing is solved, achieving a better sealing effect and preventing odors from rising from the bathroom and increasing the number of mosquitoes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-03
AI Technical Summary
Existing odor-proof valves have poor sealing performance, leading to problems such as unpleasant odors and an increase in mosquitoes in the bathroom.
A sealing and odor-proof valve comprising a base, a valve body, and a valve plate is designed. The valve plate is equipped with a deformable sealing component, including a sealing ring and a sealing cover. The sealing is achieved by the sealing flap rotating with the valve flap, avoiding gaps between the valve flap and the valve plate shaft and enhancing airtightness.
It effectively solves the problems of odor and mosquitoes in the bathroom, improves sealing and airtightness, and prevents odor backflow.
Smart Images

Figure CN224079647U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building and home technology, and specifically relates to a sealing and odor-proof valve. Background Technology
[0002] A fully sealed odor-proof valve for bathroom ventilation ducts is a device used to prevent odors from flowing back into the bathroom from public flues or ventilation ducts. The valve has a circular valve disc that operates by its own weight and the pressure of the medium to block the backflow of the medium. It is commonly installed in bathrooms and kitchens to prevent odor backflow and unpleasant smells, thus improving the environment.
[0003] However, the circular valve disc in existing odor-proof valves is prone to poor sealing when it operates due to its own weight and the pressure of the medium, causing odors to flow back into the bathroom and cross-contaminate.
[0004] Therefore, in view of the problem that the existing odor-proof valves have poor sealing performance, resulting in backflow of odors and more mosquitoes in the bathroom, there is a need to provide a sealed odor-proof valve. Utility Model Content
[0005] This utility model provides a sealing and odor-proof valve to solve the problem that existing odor-proof valves have poor sealing performance, causing backflow of odors and an increase in mosquitoes in the bathroom. Therefore, a sealing and odor-proof valve is needed.
[0006] This utility model is achieved through the following technical solution: a sealing and odor-proof valve, comprising a base, a valve body, and a valve plate, wherein the valve body is disposed on the base and has a hollow cylindrical structure with openings at both ends, and the valve plate is inclinedly disposed within the hollow cavity of the valve body, the valve plate comprising a valve plate ring, a valve plate shaft, and a rotatably disposed valve flap, characterized in that it further comprises a deformable sealing assembly, the deformable sealing assembly being disposed on the side of the valve plate near the base and covering the valve plate, the deformable sealing assembly comprising a sealing flap, the sealing flap being rotatable with the valve flap.
[0007] To better realize this utility model, further optimizations are made to the above structure. The deformable sealing assembly further includes a sealing ring and a sealing cover disposed within the sealing ring. The sealing ring is disposed on the valve plate ring, and the sealing cover is disposed on the valve plate shaft.
[0008] To better realize this utility model, the above structure is further optimized, and the sealing cover is in the form of a cap.
[0009] To better realize this utility model, the above structure is further optimized, and the sealing cover is located in the diameter direction of the sealing ring.
[0010] To better realize this utility model, the above structure is further optimized. A boss is provided in the valve body, and the valve plate is connected to the boss by bolts.
[0011] To better realize this utility model, further optimizations are made to the above structure, wherein the valve plate is located between the boss and the base, and the width of the valve plate shaft plus the diameter of the valve disc is greater than the diameter of the inner ring of the boss.
[0012] To better realize this utility model, further optimizations are made to the above structure. The radial angle of the valve plate is 10°-45° with the radial angle of the valve body, the top direction of the valve plate is opposite to the direction of the base, and the bottom of the valve plate faces the base.
[0013] To better realize this utility model, the above structure is further optimized. The base includes a base body and an annular protrusion, and the annular protrusion is integrally connected to the first surface of the base body.
[0014] To better realize this utility model, further optimizations are made to the above structure. The first end of the valve body is provided with a plurality of first L-shaped bayonets, and the annular protrusion is provided with a plurality of first buckles. The first L-shaped bayonets are engaged with the first buckles.
[0015] To better realize this utility model, the above structure is further optimized by including a variable diameter ring, which has multiple second buckles inside, and the other end of the valve body has multiple second L-shaped latches, which engage with the second buckles.
[0016] Compared with the prior art, this utility model has the following advantages:
[0017] This utility model provides a sealing and odor-proof valve, comprising a base, a valve body, and a valve plate. The valve body is disposed on the base and has a hollow cylindrical structure with openings at both ends. The valve plate is inclinedly disposed within the hollow cavity of the valve body. The valve plate includes a valve plate ring, a valve plate shaft, and a rotatably disposed valve flap. The key feature is the inclusion of a deformable sealing assembly. The deformable sealing assembly is disposed on the side of the valve plate near the base and covers the valve plate. The deformable sealing assembly includes a sealing flap that can rotate with the valve flap. This structure, with the deformable sealing assembly covering the valve plate and the sealing flap rotating with the valve flap, avoids the problem of poor airtightness caused by gaps between the valve flap and the valve plate shaft, thereby effectively solving the problems of odor and insect infestation in the bathroom. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is an exploded view of the sealing and odor-proof valve in this utility model;
[0020] Figure 2 This is an overall view of the sealing and odor-proof valve in this utility model;
[0021] Figure 3 This is a bottom view of the sealing and odor-proof valve in this utility model.
[0022] In the picture:
[0023] 1-Valve body; 2-Valve disc ring; 3-Valve disc shaft; 4-Valve disc; 5-Sealing disc; 6-Sealing ring; 7-Sealing cover; 8-Boss; 9-Base body; 10-Annular protrusion; 11-First L-shaped bayonet; 12-First buckle; 13-Second buckle; 14-Second L-shaped bayonet; 15-Screw through hole; 16-Reducing diameter ring. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] Example 1:
[0028] A sealing odor-proof valve includes a base, a valve body 1, and a valve plate. The valve body 1 is disposed on the base and has a hollow cylindrical structure with openings at both ends. The valve plate is inclinedly disposed in the hollow cavity of the valve body 1. The valve plate includes a valve plate ring 2, a valve plate shaft 3, and a rotatably disposed valve flap 4. The valve plate is characterized by further including a deformable sealing assembly. The deformable sealing assembly is disposed on the side of the valve plate near the base and covers the valve plate. The deformable sealing assembly includes a sealing flap that can rotate with the valve flap 4.
[0029] The above structure, with a deformable sealing component covering the valve plate, allows the sealing flap to rotate with the valve plate 4, thus avoiding the problem of poor airtightness caused by gaps between the valve plate 4 and the valve plate shaft 3, and effectively solving the problems of backflow odor and mosquitoes in the bathroom.
[0030] The aforementioned deformable sealing assembly further includes a sealing ring 6 and a sealing cap 7 disposed within the sealing ring. The sealing ring 6 is disposed on the valve disc ring 2, and the sealing cap 7 is disposed on the valve disc shaft 2. The sealing ring 6 and the sealing cap 7 are silicone elastic elements. The silicone material itself provides tensile force, allowing the sealing rings on both sides of the valve disc to be reset; and the silicone elastic element seals the gap between the valve disc and the valve body 1, effectively improving its sealing performance.
[0031] The aforementioned sealing cap 7 has a cap-like structure.
[0032] The sealing cap 7 is located in the diametrical direction of the sealing ring 6. That is, the sealing cap covers the sealing ring.
[0033] The valve body 1 is provided with a boss 8, and the valve plate is connected to the boss 8 by bolts. That is, the boss 8 is fixed inside the valve body 1 to provide support and fixation for the valve plate.
[0034] The valve disc is located between the boss 8 and the base. The width of the valve disc shaft plus the diameter of the valve flap 4 is greater than the diameter of the inner ring of the boss 8. That is, the valve flap 4 abuts against the boss 8, and the valve flap 4 can only rotate towards the base, forming a one-way valve.
[0035] The aforementioned elastic rotating shaft 3 has a radial angle of 10°-45° with the valve body 1. The top of the elastic rotating shaft 3 is opposite to the direction of the base, while the bottom of the elastic rotating shaft 3 faces the base. By setting the angle between the elastic rotating shaft 3 and the valve body 1, the fan blades can return to their original position under their own weight, further reducing the load on the elastic rotating shaft 3 and increasing its service life. Preferably, the radial angle between the elastic rotating shaft 3 and the valve body 1 is 15°.
[0036] The aforementioned base includes a base body 9 and an annular protrusion 10, which is integrally connected to the first surface of the base body 9. A level is also provided on the base body 9, facilitating user installation of the device.
[0037] The valve body 1 is a cylindrical shape with openings at both ends. The first end of the valve body 1 has multiple first L-shaped latches 11, and the annular protrusion 10 has multiple first buckles 12. The first L-shaped latches 11 engage with the first buckles 12. This engagement between the first L-shaped latches 11 and the first buckles 12 simplifies the connection between the valve body 1 and the base, making it more detachable and providing a strong seal.
[0038] A sealing ring is provided on the second side of the base body 9. The sealing ring enhances the airtightness between the base body 9 and the wall it is connected to, further improving the sealing performance of the odor-proof valve.
[0039] It also includes a reducing ring 16, which has multiple second snap-fits 13 inside. The other end of the valve body 1 has multiple second L-shaped snap-fits 14, which engage with the second snap-fits 13. The reducing ring allows the anti-odor valve to be adapted to pipes of various diameters.
[0040] The base is provided with multiple screw holes 15. The odor-proof valve is connected to the wall or a connector through the screw holes 15.
[0041] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A sealing odor-proof valve, comprising a base, a valve body (1), and a valve plate, wherein the valve body (1) is disposed on the base, the valve body (1) having a hollow cylindrical structure with openings at both ends, and the valve plate is obliquely disposed within the hollow cavity of the valve body (1), the valve plate comprising a valve plate ring (2), a valve plate shaft (3), and a rotatably disposed valve disc (4), characterized in that, It also includes a deformable sealing assembly, which is located on the side of the valve plate near the base and covers the valve plate. The deformable sealing assembly includes a sealing flap (5), which can rotate with the valve flap (4).
2. The sealing and odor-proof valve according to claim 1, characterized in that: The deformable sealing assembly further includes a sealing ring (6) and a sealing cover (7) disposed within the sealing ring. The sealing ring (6) is disposed on the valve plate ring (2), and the sealing cover is disposed on the valve plate shaft (3).
3. The sealing and odor-proof valve according to claim 2, characterized in that: The sealing cap (7) has a cap-like structure.
4. The sealing and odor-proof valve according to claim 2, characterized in that: The sealing cap (7) is located in the diametrical direction of the sealing ring (6).
5. A sealing and odor-proof valve according to claim 2, characterized in that: The valve body (1) is provided with a boss (8), and the valve plate is connected to the boss (8) by bolts.
6. A sealing and odor-proof valve according to claim 5, characterized in that: The valve plate is located between the boss (8) and the base, and the width of the valve plate shaft (3) plus the diameter of the valve disc (4) is greater than the diameter of the inner ring of the boss (8).
7. A sealing and odor-proof valve according to claim 6, characterized in that: The radial angle of the valve plate is 10°-45° to the radial angle of the valve body (1), the top direction of the valve plate is opposite to the direction of the base, and the bottom of the valve plate faces the base.
8. A sealing and odor-proof valve according to claim 7, characterized in that: The base includes a base body (9) and an annular protrusion (10), the annular protrusion (10) being integrally connected to the first surface of the base body.
9. A sealing and odor-proof valve according to claim 8, characterized in that: The valve body (1) has a plurality of first L-shaped bayonets (11) at its first end, and a plurality of first buckles (12) are provided in the annular protrusion (10), and the first L-shaped bayonets (11) are engaged with the first buckles (12).
10. A sealing and odor-proof valve according to claim 9, characterized in that: It also includes a variable diameter ring (16), which has multiple second buckles (13) inside. The second end of the valve body (1) has multiple second L-shaped buckles (14), which are engaged with the second buckles (13).