CN220523361U - Small-sized one-way valve device - Google Patents
Small-sized one-way valve device Download PDFInfo
- Publication number
- CN220523361U CN220523361U CN202320301782.7U CN202320301782U CN220523361U CN 220523361 U CN220523361 U CN 220523361U CN 202320301782 U CN202320301782 U CN 202320301782U CN 220523361 U CN220523361 U CN 220523361U
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- Prior art keywords
- valve
- valve body
- limit nut
- seat
- rod
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- 239000012530 fluid Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses a small one-way valve device, which comprises a valve body, wherein one end of the valve body is a valve body inlet, and the other end of the valve body is a valve body outlet; a cambered valve seat is arranged in the valve body and close to the inlet of the valve body, a limit nut is arranged between the valve seat and the outlet of the valve body in a threaded manner, a valve rod shaft hole is arranged in the center of the limit nut, a valve rod is arranged in the valve rod shaft hole, a valve core matched with the valve seat is arranged at one end of the valve rod, close to the valve seat, of the valve rod, and a spring is sleeved on the valve rod between the valve core and the limit nut; and a plurality of medium flow passages which are convenient for medium circulation are uniformly distributed on the limit nut. The utility model aims to provide a small one-way valve device which is simple in structure and convenient to use.
Description
Technical Field
The utility model relates to a small one-way valve device.
Background
A one-way valve is a valve in which fluid can only flow from the inlet of the valve body, but medium at the outlet of the valve body cannot flow back, and is also called a check valve or a check valve. The check valve is used as an important part in a pipeline system, when fluid flows in a specified direction, the valve core is automatically opened under the action of fluid kinetic energy, and when the fluid flows reversely, the valve core is automatically closed. The small-sized one-way valves sold in the market at present are quite many, but the structure of the existing one-way valves is quite complex, the production process is quite complex, and the cost is quite high. Aiming at the problems in the prior art, the research and design of a novel one-way valve is necessary to overcome the problems in the prior art.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a small one-way valve device which is simple in structure and convenient to use.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model relates to a small one-way valve device, which comprises a valve body, wherein one end of the valve body is a valve body inlet, and the other end of the valve body is a valve body outlet; a cambered valve seat is arranged in the valve body and close to the inlet of the valve body, a limit nut is arranged between the valve seat and the outlet of the valve body in a threaded manner, a valve rod shaft hole is arranged in the center of the limit nut, a valve rod is arranged in the valve rod shaft hole, a valve core matched with the valve seat is arranged at one end of the valve rod, close to the valve seat, of the valve rod, a spring is sleeved on the valve rod between the valve core and the limit nut, and two ends of the spring are respectively abutted against or fixed on the end surfaces of the valve core and the limit nut; and a plurality of medium flow passages which are convenient for medium circulation are uniformly distributed on the limit nut.
Furthermore, the valve body inlet and the valve body outlet are both internally provided with internal thread threads for being connected with a pipeline through threads.
Further, the valve seat is an arc-shaped concave surface.
Further, the valve core is an arc-shaped convex surface matched with the concave surface.
Further, a sealing gasket is arranged on the valve seat and/or the valve core.
Further, 4 medium flow channels which are convenient for medium circulation are uniformly distributed on the limit nut.
Compared with the prior art, the utility model has the beneficial technical effects that:
1. the utility model can make the fluid flow along the prescribed direction, and the backflow can not occur. If the device is applied to a hydraulic system, the flow of oil in the opposite direction can be avoided. If the device is applied to a pneumatic system, the reverse flow of the compressed air can be avoided.
2. The spring force can be adjusted by adjusting the radial distance between the limit nut and the valve core. The spring adjusts proper elasticity, and the sealing reliability of the contact surface of the valve core and the valve seat can be ensured in the horizontal direction or the vertical direction.
3. The utility model has simple structure, compact arrangement and reliable operation, and the used parts are convenient to process and manufacture. The key components of the valve core and the spring in the one-way valve are convenient to replace.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a front view of a schematic media downstream of a small one-way valve assembly of the present utility model;
FIG. 2 is a schematic view of the reverse flow of the medium of the small-sized check valve device of the present utility model;
FIG. 3 is a cross-sectional view of a retention nut;
reference numerals illustrate: 1. a valve body inlet; 2. a valve body; 3. a valve seat; 4. a valve core; 5. a spring; 6. a limit nut; 7. a valve stem; 8. a media flow path; 9. a valve body outlet; 10. and a valve rod shaft hole.
Detailed Description
Example 1
As shown in fig. 1 to 3, a small one-way valve device comprises a valve body 2, wherein one end of the valve body 2 is a valve body inlet 1, and the other end is a valve body outlet 9; a valve seat 3 with a concave cambered surface is arranged in the valve body 2 and close to the valve body inlet 1, a limit nut 6 is arranged between the valve seat 3 and the valve body outlet 9 in a threaded manner, a valve rod shaft hole 10 is arranged in the center of the limit nut 6, a valve rod 7 is arranged in the valve rod shaft hole 10 in a stipulated manner, a valve core 4 with a convex cambered surface matched with the valve seat 3 is arranged at one end of the valve rod 7 close to the valve seat 3, a spring 5 is sleeved on the valve rod 7 between the valve core 4 and the limit nut 6, and two ends of the spring 5 are respectively fixed on the end faces of the valve core 4 and the limit nut 6; and 4 medium flow passages 8 which are convenient for medium circulation are uniformly distributed on the limit nut 6.
The valve body inlet 1 and the valve body outlet 9 are respectively provided with an internal thread screw thread for being connected with a pipeline through the screw threads.
Example 2
The difference from example 1 is that: and sealing gaskets are arranged on the valve seat 3 and/or the valve core 4.
The working principle and the using flow of the utility model are as follows:
when the valve is used, the inlet of the valve 1 is arranged at a reserved position of a pipeline. The valve core 4 and the valve rod 7 are integrally manufactured, the central axis is on the same straight line, the spring 5 is sleeved on the valve rod, and the valve core is placed inside the valve body 2 from the valve outlet 9. The limit nut 6 is screwed into the valve body from the valve outlet, the valve rod 7 is fixedly arranged in the valve rod shaft hole 10, and the elastic force of the spring 5 is regulated by regulating the position of the limit nut 6.
When the fluid flows in a specified direction, the fluid flows through the valve seat 3, the valve core 4 is pushed away by the pressure of the fluid, and the fluid flows through the medium flow channel 8 around the limit nut 6 and then flows out from the valve outlet.
When the fluid flows backwards, after the fluid flows through the medium flow channel 8 around the limit nut 6, the valve core 4 is pushed to the valve seat 3 by the elasticity of the spring and the pressure of the medium, the valve core 4 and the valve seat 3 are combined and sealed, and the fluid cannot flow to the inlet of the valve.
Firstly, the valve seat and the valve core are spherical surfaces, and the spherical surface seal is more reliable than the valve plate seal and the valve seat line seal of the transmission. When the medium flows backwards, the valve is in a closed state, and even if the valve works for a long time, the spherical seal between the valve core and the valve body is still very reliable, so that the medium can be prevented from flowing backwards, and the service life of the valve is longer;
thirdly, the elasticity of the spring can be adjusted by adjusting the radial distance between the limiting nut and the valve core, so that the tightness of the contact part of the valve core and the valve seat can be ensured;
finally, the novel device has the advantages of simple structure, compact arrangement and reliable operation, and the used parts are convenient to process and manufacture. The key components of the valve core and the spring in the one-way valve are convenient to replace.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. The small one-way valve device is characterized by comprising a valve body, wherein one end of the valve body is a valve body inlet, and the other end of the valve body is a valve body outlet; a cambered valve seat is arranged in the valve body and close to the inlet of the valve body, a limit nut is arranged between the valve seat and the outlet of the valve body in a threaded manner, a valve rod shaft hole is arranged in the center of the limit nut, a valve rod is arranged in the valve rod shaft hole, a valve core matched with the valve seat is arranged at one end of the valve rod, close to the valve seat, of the valve rod, and a spring is sleeved on the valve rod between the valve core and the limit nut; and a plurality of medium flow passages which are convenient for medium circulation are uniformly distributed on the limit nut.
2. A compact one-way valve assembly as recited in claim 1, characterised in that said valve body inlet and said valve body outlet are each internally provided with an internally threaded screw thread for threaded connection with a pipe.
3. A compact one-way valve assembly as recited in claim 1, characterised in that said valve seat is arcuate concave.
4. A compact one-way valve assembly as recited in claim 3, characterised in that said valve element presents an arcuate convex surface which mates with said concave surface.
5. A compact one-way valve assembly as recited in claim 1, characterised in that said valve seat and/or valve element is provided with a gasket.
6. The small one-way valve assembly of claim 1, wherein the retainer nut has 4 media flow passages evenly distributed thereon for facilitating media flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320301782.7U CN220523361U (en) | 2023-02-22 | 2023-02-22 | Small-sized one-way valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320301782.7U CN220523361U (en) | 2023-02-22 | 2023-02-22 | Small-sized one-way valve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523361U true CN220523361U (en) | 2024-02-23 |
Family
ID=89926538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320301782.7U Active CN220523361U (en) | 2023-02-22 | 2023-02-22 | Small-sized one-way valve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523361U (en) |
-
2023
- 2023-02-22 CN CN202320301782.7U patent/CN220523361U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |