CN220134692U - Spring type check valve - Google Patents
Spring type check valve Download PDFInfo
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- CN220134692U CN220134692U CN202321563995.3U CN202321563995U CN220134692U CN 220134692 U CN220134692 U CN 220134692U CN 202321563995 U CN202321563995 U CN 202321563995U CN 220134692 U CN220134692 U CN 220134692U
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- valve
- spring
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- type check
- check valve
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- 238000007789 sealing Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000007599 discharging Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 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
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to the technical field of pipeline valves and discloses a spring type check valve which comprises a valve body and a valve core, wherein the valve core consists of a valve clack and a recoil disc, a valve seat is fixedly arranged in the middle of the valve body, a water inlet is fixedly arranged at the lower end of the valve body, a water outlet is fixedly arranged at one side of the valve body, a valve cover is detachably arranged at the upper end of the valve body, a guide pipe is fixedly arranged at the lower end of the valve cover, the recoil disc is slidably arranged in the guide pipe, a valve rod is fixedly arranged at the upper end of the recoil disc, a spring is slidably sleeved on the outer wall of the valve rod, the spring slides in the valve cover, a nut is fixedly arranged in the middle of the upper end of the valve cover, a nut is threadedly sleeved on the outer wall of an adjusting screw, and a circular thread groove is formed in the upper end face of the valve cover. According to the utility model, the device has a simple structure, is convenient to use, is convenient to detach and install, and can protect the spring by the valve cover, so that the spring is prevented from being oxidized or deformed, and the service life of the check valve is prolonged.
Description
Technical Field
The utility model relates to the technical field of pipeline valves, in particular to a spring type check valve.
Background
The check valve is a valve commonly used in petroleum, chemical and steam pipelines and other places. The spring type check valve utilizes the elastic force of the spring to control the opening and closing of the check valve, has the characteristics of simple structure, convenient installation and use, low manufacturing cost and the like, and is deeply favored by wide users.
Through searching, the existing spring type check valve has the problems that the tightness is poor, the element is easy to age, but the maintenance is inconvenient, and the service life and the technical performance of the check valve are directly influenced. Accordingly, a spring type check valve is provided by those skilled in the art to solve the problems set forth in the background art described above.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides the spring type check valve which is simple in structure, convenient to use and convenient to detach and install, and the valve cover can protect the spring to prevent the spring from being oxidized or deformed, so that the service life of the check valve is prolonged.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the spring type check valve comprises a valve body and a valve core, wherein the valve core consists of a valve clack and a recoil disc, a valve seat is fixedly arranged in the middle part of the valve body, a water inlet is fixedly arranged at the lower end of the valve body, a water outlet is fixedly arranged at one side of the valve body, a valve cover is detachably arranged at the upper end of the valve body, a guide pipe is fixedly arranged at the lower end of the valve cover, the recoil disc is slidingly arranged in the guide pipe, a valve rod is fixedly arranged at the upper end of the recoil disc, a spring is sleeved on the outer wall of the valve rod in a sliding manner, the spring slides in the valve cover, a nut is fixedly arranged in the middle part of the upper end of the valve cover, a nut is sleeved on the outer wall of an adjusting screw rod in a threaded manner, and a circular thread groove is formed in the upper end face of the valve cover;
through the technical scheme, steam enters from the flow inlet, when the steam supporting force at the bottom of the valve core is larger than the elastic force of the spring acting on the upper part of the valve core, the spring is compressed, the valve core is jacked up to be away from the valve seat, the steam is discharged outwards through a gap between the valve core and the valve seat, when the steam supporting force at the bottom of the valve core is smaller than the elastic force of the spring acting on the upper part of the valve core, the spring is stretched, the valve core and the valve seat are tightly combined again, and the steam stops discharging.
Further, an adjusting screw rod is sleeved on the outer wall of the valve rod in a sliding manner and positioned at the upper end of the valve rod, and the lower end of the adjusting screw rod is fixedly connected with the upper end of the spring;
through above-mentioned technical scheme, the whole pressure of spring check valve is adjusted through screwing up or loosening the adjusting screw, screws up the adjusting screw, and the spring is compressed, and elasticity increases, and the pressure that acts on the case just increases, and the whole pressure of check valve is adjusted high, otherwise, loosens the adjusting pressure, and the spring is relaxed, and elasticity reduces, and the pressure that acts on the case just reduces, and the whole pressure of check valve is adjusted down.
Further, the lower end in the recoil disc is fixedly provided with a valve clack;
through the technical scheme, the valve clack is a part of the valve core, and the valve clack is contacted with the upper end of the valve seat, so that the sealing performance is higher.
Further, sealing rings are fixedly arranged on two sides of the lower end of the valve cover and two sides of the upper end of the valve body;
through the technical scheme, the sealing ring can ensure the tightness of the check valve, and steam is prevented from leaking out of the valve body.
Further, a protective cover is detachably arranged at the upper end of the valve cover and positioned at the circular thread groove;
through the technical scheme, the adjusting screw rod can be protected by the protecting cover, and the sealing performance of the upper end of the valve cover can be further enhanced by the protecting cover because the valve rod and the adjusting screw rod penetrate through the valve cover and extend out of the upper end.
Further, the valve body and the valve cover are fixedly connected through a plurality of bolts;
through above-mentioned technical scheme, be connected valve body and valve gap through the bolt, conveniently dismantle and install, improve the life of valve body.
Further, a transparent window is fixedly arranged at the front end of the valve cover;
through above-mentioned technical scheme, the inside state of check valve is looked over to the people of being convenient for, works out the problem as the check valve, and people's accessible observe the condition of spring and discern the problem.
The utility model has the following beneficial effects:
1. the utility model provides a spring type check valve, steam enters through a flow inlet, when the steam supporting force at the bottom of a valve core is larger than the elastic force acted on the upper part of the valve core by a spring, the spring is compressed, so that the valve core is jacked up to be away from a valve seat, the steam is discharged outwards through a gap between the valve core and the valve seat, when the steam supporting force at the bottom of the valve core is smaller than the elastic force acted on the upper part of the valve core by the spring, the spring is stretched, so that the valve core and the valve seat are tightly combined again, the steam stops discharging, the integral pressure of the spring type check valve is regulated by screwing or loosening an adjusting screw, the spring is compressed, the elastic force is increased, the pressure acted on the valve core is also increased, the integral pressure of the spring type check valve is regulated to be high, otherwise, the adjusting pressure is relaxed, the elastic force is reduced, the pressure acted on the valve core is also reduced, and the integral pressure of the spring type check valve is regulated to be low, and the structure is simple, and the use is convenient.
2. According to the spring type check valve, the sealing ring is arranged to ensure the tightness of the check valve, the valve body is connected with the valve cover through the bolt, the valve cover is convenient to detach and install, the spring can be protected by the valve cover, the spring is prevented from being oxidized or deformed, the service life of the spring is prolonged, and therefore the service life of the check valve is prolonged.
Drawings
FIG. 1 is a perspective view of a spring type check valve according to the present utility model;
FIG. 2 is a front view of a spring type check valve according to the present utility model;
FIG. 3 is a front cross-sectional view of a spring-type check valve according to the present utility model;
FIG. 4 is a schematic diagram of a valve core structure of a spring type check valve according to the present utility model;
fig. 5 is an enlarged view at a in fig. 3.
Legend description:
1. a valve body; 2. a valve seat; 3. a feed port; 4. a flow outlet; 5. a valve flap; 6. a recoil disc; 7. a valve stem; 8. a valve cover; 9. a seal ring; 10. a spring; 11. adjusting a screw; 12. a nut; 13. a protective cover; 14. a circular thread groove; 15. a bolt; 16. a transparent window; 17. a guide tube; 18. and a valve core.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, one embodiment provided by the present utility model is: the spring type check valve comprises a valve body 1 and a valve core 18, wherein the valve core 18 consists of a valve clack 5 and a recoil disc 6, a valve seat 2 is fixedly arranged in the middle part of the valve body 1, a flow inlet 3 is fixedly arranged at the lower end of the valve body 1, a flow outlet 4 is fixedly arranged on one side of the valve body 1, a valve cover 8 is detachably arranged at the upper end of the valve body 1, a guide pipe 17 is fixedly arranged at the lower end of the valve cover 8, the recoil disc 6 is slidingly arranged in the guide pipe 17, a valve rod 7 is fixedly arranged at the upper end of the recoil disc 6, a spring 10 is slidingly sleeved on the outer wall of the valve rod 7, a nut 12 is fixedly arranged in the middle part of the upper end of the valve cover 8, a nut 12 is sleeved on the outer wall of an adjusting screw 11, and a circular thread groove 14 is formed in the upper end surface of the valve cover 8;
when steam enters from the inlet 3, when the steam supporting force at the bottom of the valve core 18 is larger than the elastic force of the spring 10 acting on the upper part of the valve core 18, the spring 10 is compressed, so that the valve core 18 is jacked up to be away from the valve seat 2, the steam is discharged outwards through a gap between the valve core 18 and the valve seat 2, and when the steam supporting force at the bottom of the valve core 18 is smaller than the elastic force of the spring 10 acting on the upper part of the valve core 18, the spring 10 stretches, so that the valve core 18 and the valve seat 2 are tightly combined again, and the steam stops discharging.
The outer wall of the valve rod 7 and the sliding sleeve at the upper end are provided with an adjusting screw 11, the lower end of the adjusting screw 11 is fixedly connected with the upper end of a spring 10, the integral pressure of the spring 10 type check valve is adjusted by screwing or unscrewing the adjusting screw 11, the adjusting screw 11 is screwed, the spring 10 is compressed, the elastic force is increased, the pressure acting on the valve core 18 is increased, the integral pressure of the check valve is increased, otherwise, the adjusting pressure is relaxed, the spring 10 is relaxed, the elastic force is reduced, the pressure acting on the valve core 18 is also reduced, and the integral pressure of the check valve is reduced.
The valve clack 5 is fixedly arranged at the inner lower end of the recoil disc 6, the valve clack 5 is a part of the valve core 18, and the valve clack 5 is contacted with the upper end of the valve seat 2, so that the tightness is higher.
Sealing rings 9 are fixedly arranged on two sides of the lower end of the valve cover 8 and two sides of the upper end of the valve body 1, and the sealing rings 9 can ensure the tightness of the check valve and prevent steam from leaking out of the valve body 1.
The upper end of the valve cover 8 and the circular thread groove 14 are detachably provided with the protective cover 13, the protective cover 13 can protect the adjusting screw 11, and the protective cover 13 can further enhance the tightness of the upper end of the valve cover 8 because the valve rod 7 and the adjusting screw 11 penetrate through the valve cover 8 and extend out of the upper end.
The valve body 1 and the valve cover 8 are fixedly connected through a plurality of bolts 15, the valve body 1 and the valve cover 8 are connected through the bolts 15, the disassembly and the installation are convenient, and the service life of the valve body 1 is prolonged.
The front end of the valve cover 8 is fixedly provided with a transparent window 16, so that people can check the state inside the check valve conveniently, and when the check valve works out a problem, people can distinguish the problem by observing the condition of the spring 10.
Working principle: when the spring type check valve is used, steam enters through the inlet 3, when the steam supporting force at the bottom of the valve core 18 is larger than the elastic force of the spring 10 acting on the upper part of the valve core 18, the spring 10 is compressed, the valve core 18 is jacked up to leave the valve seat 2, the steam is discharged outwards through a gap between the valve core 18 and the valve seat 2, when the steam supporting force at the bottom of the valve core 18 is smaller than the elastic force of the spring 10 acting on the upper part of the valve core 18, the spring 10 is stretched, the valve core 18 and the valve seat 2 are tightly combined again, the steam stops discharging, the integral pressure of the spring 10 type check valve is regulated by screwing or unscrewing the regulating screw 11, the regulating screw 11 is screwed, the spring 10 is compressed, the elastic force is increased, the integral pressure acting on the valve core 18 is increased, otherwise, the regulating pressure is relaxed, the spring 10 is relaxed, the elastic force is reduced, the pressure acting on the valve core 18 is also reduced, the integral pressure of the spring 10 type check valve is regulated to be low, the structure is simple, the use is convenient, the tightness of the check valve is ensured by arranging the sealing ring 9, the valve body 1 and the valve cover 8 are connected by the bolts 15, the valve body 8 and the valve cover 8 can be conveniently detached, the valve 10 can be conveniently mounted, the service life of the spring 10 is prolonged, the service life of the valve 10 is prolonged, and the use is prolonged.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A spring type check valve, comprising a valve body (1) and a valve core (18), characterized in that: the valve core (18) comprises valve clack (5) and recoil dish (6), valve body (1) internal middle part is fixed to be provided with disk seat (2), valve body (1) lower extreme is fixed to be provided with inlet (3), valve body (1) one side is fixed to be provided with outlet (4), valve body (1) upper end can be dismantled and is provided with valve gap (8), valve gap (8) lower extreme is fixed to be provided with stand pipe (17), stand pipe (17) inside slip is provided with recoil dish (6), recoil dish (6) upper end is fixed to be provided with valve rod (7), valve rod (7) outer wall slip cap is equipped with spring (10), spring (10) are inside to slide at valve gap (8), valve gap (8) upper end middle part is fixed to be provided with nut (12), nut (12) thread bush is established at adjusting screw (11) outer wall, circular thread groove (14) have been seted up to valve gap (8) up.
2. A spring type check valve according to claim 1, wherein: the outer wall of the valve rod (7) is sleeved with an adjusting screw (11) in a sliding mode, and the lower end of the adjusting screw (11) is fixedly connected with the upper end of the spring (10).
3. A spring type check valve according to claim 1, wherein: the inner lower end of the recoil disc (6) is fixedly provided with a valve clack (5).
4. A spring type check valve according to claim 1, wherein: sealing rings (9) are fixedly arranged on two sides of the lower end of the valve cover (8) and two sides of the upper end of the valve body (1).
5. A spring type check valve according to claim 1, wherein: the upper end of the valve cover (8) is detachably provided with a protective cover (13) at the thread groove (14).
6. A spring type check valve according to claim 1, wherein: the valve body (1) is fixedly connected with the valve cover (8) through a plurality of bolts (15).
7. A spring type check valve according to claim 1, wherein: the front end of the valve cover (8) is fixedly provided with a transparent window (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321563995.3U CN220134692U (en) | 2023-06-19 | 2023-06-19 | Spring type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321563995.3U CN220134692U (en) | 2023-06-19 | 2023-06-19 | Spring type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134692U true CN220134692U (en) | 2023-12-05 |
Family
ID=88961578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321563995.3U Active CN220134692U (en) | 2023-06-19 | 2023-06-19 | Spring type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134692U (en) |
-
2023
- 2023-06-19 CN CN202321563995.3U patent/CN220134692U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |