CN220134691U - One-way valve - Google Patents
One-way valve Download PDFInfo
- Publication number
- CN220134691U CN220134691U CN202321459187.2U CN202321459187U CN220134691U CN 220134691 U CN220134691 U CN 220134691U CN 202321459187 U CN202321459187 U CN 202321459187U CN 220134691 U CN220134691 U CN 220134691U
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- CN
- China
- Prior art keywords
- valve
- valve core
- limiting part
- spring seat
- spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 210000002445 nipple Anatomy 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims 3
- 239000007788 liquid Substances 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 20
- 238000000855 fermentation Methods 0.000 description 8
- 230000004151 fermentation Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a one-way valve, which comprises a valve body, wherein a spring seat is fixedly arranged in the valve body, a first limiting part is fixedly arranged on the spring seat, a valve core is slidably arranged in the first limiting part, a spring is arranged in an accommodating space formed by the valve core, the first limiting part and the spring seat, and two ends of the spring are fixedly connected with the spring seat and the valve core respectively. According to the utility model, the first limiting part and the second limiting part are added, so that the moving direction of the valve core can be limited, the valve core is not easy to misplace during resetting, the tightness of the closed valve port of the one-way valve is improved, the reverse flow of gas or liquid is avoided, the abrasion of the contact part of the sealing ring, the valve body and the valve core is reduced, and the service life of the one-way valve is prolonged.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a one-way valve.
Background
The check valve has the main function of controlling the unidirectional circulation of gas or liquid. In the fermentation process, a certain gas pressure is required to be maintained in the fermentation tank, so that a one-way valve is generally adopted in the fermentation tank to prevent the reverse flow of gas or liquid in the fermentation tank, so that the stable gas pressure in the fermentation tank is maintained, and the reverse flow of gas or liquid is prevented from polluting external accessories to destroy the fermentation environment. The working principle of the currently commonly used one-way valve is as follows: when gas flows in from the gas inlet end, when the gas pressure at the gas inlet end is larger than the gas pressure in the fermentation tank, the valve core is jacked up against the spring force under the action of the introduced gas pressure, so that the valve port of the one-way valve is opened, and the gas flows into the one-way valve; when the gas pressure at the gas inlet end is smaller than the gas pressure in the fermentation tank, the spring resets and drives the valve core to reset, and the valve port of the one-way valve is closed, so that the one-way flow of gas is realized, and the reverse flow of gas or liquid is avoided.
The existing check valve is often easy to misplace when the valve core is reset, so that the tightness of the closed valve port of the check valve is affected, the gas or liquid is caused to flow reversely, and the contact part of the sealing gasket, the valve body and the valve core is easy to wear, so that the service life of the check valve is affected.
Disclosure of Invention
The utility model aims to solve the defect that a valve core is easy to misplace when reset in the prior art, and provides a one-way valve.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the one-way valve comprises a valve body, wherein a spring seat is fixedly arranged in the valve body, and a first limiting part is fixedly arranged on the spring seat;
the valve core is slidably mounted in the first limiting part, a spring is arranged in an accommodating space formed by the valve core, the first limiting part and the spring seat, and two ends of the spring are fixedly connected with the spring seat and the valve core respectively.
Preferably, one end of the valve body is a first bottom surface, the other end of the valve body is a second bottom surface, the first bottom surface is connected with an air inlet connecting pipe, and the second bottom surface is connected with an air outlet connecting pipe.
Preferably, the valve core includes a third bottom surface having an area larger than an area of a cross section of the intake nipple in the first direction.
Preferably, the spring seat is disposed parallel to the first bottom surface or the second bottom surface.
Preferably, the spring seat is provided with a first ventilation part.
Preferably, the first ventilation part is located between the valve body and the first limit part.
Preferably, a second limiting part is fixedly arranged at one end of the valve core, which is far away from the first limiting part.
Preferably, a second ventilation part is arranged on the second limiting part near the valve core.
Preferably, a sealing ring is arranged between the valve core and the first bottom surface.
The beneficial effects of the utility model are as follows:
according to the utility model, the first limiting part and the second limiting part are added, so that the moving direction of the valve core can be limited, the valve core is not easy to misplace during resetting, the tightness of the closed valve port of the one-way valve is improved, the reverse flow of gas or liquid is avoided, the abrasion of the contact part of the sealing ring, the valve body and the valve core is reduced, and the service life of the one-way valve is prolonged.
Drawings
FIG. 1 is a schematic structural view of an embodiment 1 of a check valve according to the present utility model (section A-A is a first direction section in the drawing);
fig. 2 is a schematic structural diagram of embodiment 2 of a check valve according to the present utility model (in the drawing, the section A-A is a first direction section).
In the figure: 1-a valve body, 11-a first bottom surface, 12-a second bottom surface, 2-a spring seat, 21-a first ventilation part, 3-a spring, 4-a valve core, 41-a third bottom surface, 5-first limit part, 6-second limit part, 61-second ventilation part, 7-air inlet connecting pipe, 8-air outlet connecting pipe and 9-sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Embodiment 1 referring to fig. 1, a one-way valve comprises a valve body 1, wherein the valve body 1 is hollow cylindrical, one end of the valve body 1 is a first bottom surface 11, the other end of the valve body 1 is a second bottom surface 12, the first bottom surface 11 is connected with an air inlet connecting pipe 7, and the second bottom surface 12 is connected with an air outlet connecting pipe 8.
The valve body 1 is fixedly provided with a spring seat 2 inside, for example, the valve body 1 and the spring seat 2 are connected in a welding mode or the like, the spring seat 2 is arranged at a position, close to the second bottom surface 12, of the valve body 1, and the spring seat 2 is arranged in parallel with the first bottom surface 11 or the second bottom surface 12.
A first limiting part 5 is fixed on one side of the spring seat 2 close to the first bottom surface 11, and a valve core 4 is slidably installed in the first limiting part 5. Specifically, the valve core 4 includes a third bottom surface 41, and the area of the third bottom surface 41 is larger than the area of the section of the air inlet connecting pipe 7 in the first direction, so when air is introduced, if the pressure of the introduced air is larger than the pressure of the air in the one-way valve, the introduced air pressure can overcome the spring force and jack the valve core 4, and the air enters the one-way valve; when the pressure of the gas introduced is smaller than the pressure of the gas in the one-way valve, the valve core 4 is reset under the drive of the spring 3, and the area of the third bottom surface 41 of the valve core 4 is larger than the longitudinal cross-sectional area of the gas inlet connecting pipe 7, so that the gas is blocked by the first bottom surface 11 of the valve body 1, the sealing effect is achieved, and the gas or liquid cannot circulate. The first limiting portion 5 is fixedly connected with the spring seat 2, for example, by welding or the like. The first limiting part 5 is slidably provided with the valve core 4, and preferably, the first limiting part 5 is sleeved outside the valve core 4 and is closely arranged on the valve core 4 so as to limit the moving direction of the valve core 4 and reduce the occurrence of dislocation when the valve core 4 is reset.
The valve core 4, the first limiting part 5 and the spring seat 2 are provided with a spring 3 in an accommodating space formed by the valve core 4 and the first limiting part, and two ends of the spring 3 are fixedly connected with the spring seat 2 and the valve core 4 respectively, so that the valve core 4 can move under the drive of the spring 3.
The spring seat 2 is provided with a first ventilation part 21; the first vent portion 21 is located between the valve body 1 and the first stopper portion 5. The first ventilation portion 21 is provided with an opening having a ventilation function, for example, the first ventilation portion 21 is provided with a through hole so that the gas entering the check valve can be introduced into the gas outlet connection pipe 8 through the through hole in the spring seat 2.
A sealing ring 9 is arranged between the valve core 4 and the first bottom surface 11; specifically, the rubber seal 9 is circumferentially arranged on the side of the first bottom surface 11 of the valve body 1 close to the valve core 4, so that the tightness of the check valve is enhanced, and the abrasion of the valve body 1 and the valve core 4 is reduced.
The valve body 1, the valve core 4, the spring 3, the spring seat 2, the first limiting part 5 and the like of the one-way valve can be made of stainless steel materials, so that the one-way valve is more resistant to high temperature and high pressure.
Working principle: fig. 1 shows a one-way valve provided with a first limiting part 5, a spring seat 2 is arranged in a valve body 1, a spring 3 is connected with the spring seat 2 and a valve core 4, the first limiting part 5 is fixedly connected with the spring seat 2, and the first limiting part 5 is sleeved outside the valve core 4 and is in tight contact with the valve core 4. The first bottom surface 11 of the valve body 1 is connected with the air inlet connecting pipe 7, and the second bottom surface 12 of the valve body 1 is connected with the air outlet connecting pipe 8. When gas is introduced from the gas inlet connecting pipe 7, if the pressure of the introduced gas is greater than the pressure of the gas in the one-way valve, the introduced gas pressure can overcome the spring force and jack the valve core 4 to enter the one-way valve, a first ventilation part 21 is arranged between the first limiting part 5 and the valve body 1 on the spring seat 2, and a through hole is arranged on the first ventilation part 21, so that the gas entering the one-way valve can be introduced into the gas outlet connecting pipe 8 through the through hole on the spring seat 2; when the pressure of the introduced gas is smaller than that in the one-way valve, the valve core 4 is reset under the drive of the spring 3, and under the action of the first limiting part 5, the valve core 4 is not easy to incline during resetting, so that the valve core is accurately contacted with the rubber sealing ring 9 on the first bottom surface 11 of the valve body 1, the sealing effect is achieved, and the gas or liquid cannot circulate.
Embodiment 2 referring to fig. 2, a one-way valve comprises a valve body 1, wherein the valve body 1 is hollow cylindrical, one end of the valve body 1 is a first bottom surface 11, the other end of the valve body 1 is a second bottom surface 12, the first bottom surface 11 is connected with an air inlet connection pipe 7, and the second bottom surface 12 is connected with an air outlet connection pipe 8.
The valve body 1 is fixedly provided with a spring seat 2 inside, for example, the valve body 1 and the spring seat 2 are connected in a welding mode or the like, the spring seat 2 is arranged at a position, close to the second bottom surface 12, of the valve body 1, and the spring seat 2 is arranged in parallel with the first bottom surface 11 or the second bottom surface 12.
A first limiting part 5 is fixed on one side of the spring seat 2 close to the first bottom surface 11, and a valve core 4 is slidably installed in the first limiting part 5. Specifically, the valve core 4 includes a third bottom surface 41, and the area of the third bottom surface 41 is larger than the area of the section of the air inlet connecting pipe 7 in the first direction, so when air is introduced, if the pressure of the introduced air is larger than the pressure of the air in the one-way valve, the introduced air pressure can overcome the spring force and jack the valve core 4, and the air enters the one-way valve; when the pressure of the introduced gas is smaller than the pressure of the gas in the one-way valve, the valve core 4 is reset under the drive of the spring 3, and the area of the third bottom surface 41 of the valve core 4 is larger than the cross-sectional area of the air inlet connecting pipe 7 in the first direction, so that the valve is blocked by the first bottom surface 11 of the valve body 1, the sealing effect is achieved, and the gas or liquid cannot circulate. The first limiting portion 5 is fixedly connected with the spring seat 2, for example, by welding or the like. The first limiting part 5 is slidably provided with the valve core 4, and preferably, the first limiting part 5 is sleeved outside the valve core 4 and is closely arranged on the valve core 4 so as to limit the moving direction of the valve core 4 and reduce the occurrence of dislocation when the valve core 4 is reset.
The valve core 4, the first limiting part 5 and the spring seat 2 are provided with a spring 3 in an accommodating space formed by the valve core 4 and the first limiting part, and two ends of the spring 3 are fixedly connected with the spring seat 2 and the valve core 4 respectively, so that the valve core 4 can move under the drive of the spring 3.
The spring seat 2 is provided with a first ventilation part 21; the first vent portion 21 is located between the valve body 1 and the first stopper portion 5. The first ventilation portion 21 is provided with an opening having a ventilation function, for example, the first ventilation portion 21 is provided with a through hole so that the gas entering the check valve can be introduced into the gas outlet connection pipe 8 through the through hole in the spring seat 2.
The valve core 4 is kept away from the fixed second spacing portion 6 that is equipped with of one end of first spacing portion 5, and second spacing portion 6 and valve core 4 fixed connection, for example adopt modes such as welding. The air inlet connecting pipe 7 is sleeved outside the second limiting part 6, and preferably, the second limiting part 6 is closely attached to the air inlet connecting pipe 7 so as to further limit the moving direction of the valve core 4.
The second limiting part 6 is provided with a second ventilation part 61 near the valve core 4, and the second ventilation part 61 is provided with an opening with ventilation function, for example, the second ventilation part 61 is provided with a through hole, so that when gas is introduced to jack the valve core 4, the gas in the gas inlet connecting pipe 7 can enter the valve body 1 through the through hole in the second ventilation part 61.
A sealing ring 9 is arranged between the valve core 4 and the first bottom surface 11; specifically, the rubber seal 9 is circumferentially arranged on the side of the first bottom surface 11 of the valve body 1 close to the valve core 4, so that the tightness of the check valve is enhanced, and the abrasion of the valve body 1 and the valve core 4 is reduced.
The valve body 1, the valve core 4, the spring 3, the spring seat 2, the first limiting part 5 and the like of the one-way valve can be made of stainless steel materials, so that the one-way valve is more resistant to high temperature and high pressure.
The present embodiment is optimized based on embodiment 1, specifically:
working principle: the check valve of fig. 2 has a second stop 6 added. The second limiting part 6 is fixedly connected with the valve core 4, the air inlet connecting pipe 7 is sleeved outside the second limiting part 6, and the second limiting part 6 is tightly attached to the air inlet connecting pipe 7. Similarly, when gas is introduced from the air inlet connection pipe 7, if the pressure of the introduced gas is greater than the pressure of the gas in the one-way valve, the introduced gas can overcome the spring force and push up the valve core 4, the gas enters the one-way valve through the second air inlet portion 61 of the second limiting portion 6, and then is introduced into the air outlet connection pipe 8 through the first air inlet portion 21 on the spring seat 2; when the pressure of the gas introduced is smaller than that in the one-way valve, the valve core 4 is reset under the drive of the spring 3, and the accurate reset of the valve core 4 is further ensured under the simultaneous action of the first limiting part 5 and the second limiting part 6.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (9)
1. The one-way valve comprises a valve body (1) and is characterized in that a spring seat (2) is fixedly arranged in the valve body (1), and a first limiting part (5) is fixedly arranged on the spring seat (2);
the valve core (4) is slidably mounted in the first limiting part (5), a spring (3) is arranged in an accommodating space formed by the valve core (4) and the first limiting part (5) and the spring seat (2), and two ends of the spring (3) are fixedly connected with the spring seat (2) and the valve core (4) respectively.
2. A one-way valve according to claim 1, characterized in that one end of the valve body (1) is a first bottom surface (11), the other end of the valve body (1) is a second bottom surface (12), the first bottom surface (11) is connected with an air inlet connection pipe (7), and the second bottom surface (12) is connected with an air outlet connection pipe (8).
3. A non-return valve according to claim 2, characterized in that the valve element (4) comprises a third bottom surface (41), the area of the third bottom surface (41) being larger than the area of the cross section of the inlet nipple (7) in the first direction.
4. A non-return valve according to claim 2, wherein the spring seat (2) is arranged parallel to the first bottom surface (11) or the second bottom surface (12).
5. A one-way valve according to claim 1, characterized in that the spring seat (2) is provided with a first venting portion (21).
6. A one-way valve according to claim 5, characterized in that the first venting portion (21) is located between the valve body (1) and the first limiting portion (5).
7. A one-way valve according to claim 1, characterized in that the end of the valve core (4) remote from the first limiting part (5) is fixedly provided with a second limiting part (6).
8. A one-way valve according to claim 7, characterized in that a second venting portion (61) is provided on the second limiting portion (6) near the valve core (4).
9. A non-return valve according to claim 2, characterized in that a sealing ring (9) is arranged between the valve element (4) and the first bottom surface (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459187.2U CN220134691U (en) | 2023-06-09 | 2023-06-09 | One-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321459187.2U CN220134691U (en) | 2023-06-09 | 2023-06-09 | One-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134691U true CN220134691U (en) | 2023-12-05 |
Family
ID=88958350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321459187.2U Active CN220134691U (en) | 2023-06-09 | 2023-06-09 | One-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134691U (en) |
-
2023
- 2023-06-09 CN CN202321459187.2U patent/CN220134691U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |