CN212584336U - Progressive check valve - Google Patents
Progressive check valve Download PDFInfo
- Publication number
- CN212584336U CN212584336U CN202020435673.0U CN202020435673U CN212584336U CN 212584336 U CN212584336 U CN 212584336U CN 202020435673 U CN202020435673 U CN 202020435673U CN 212584336 U CN212584336 U CN 212584336U
- Authority
- CN
- China
- Prior art keywords
- support
- valve
- seat
- check valve
- valve block
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000000750 progressive effect Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 21
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a progressive check valve, which comprises a valve body, wherein a support base is arranged on the left side of the inner surface of the valve body, a sleeve base is in threaded connection with the middle position on the left side of the support base, a movable rod is slidably connected with the inner surface of the sleeve base through a reset spring, one end of the movable rod, which is far away from the support base, is connected with a support, one end of the support, which is far away from the support base, is provided with a first-stage valve block, and the inner surface; the utility model discloses a progressive check valve that two sets of springs and valve block are constituteed can effectively avoid the fluid to jack up the one-level valve block suddenly, leads to the pipeline to vibrate or produce the abnormal sound, can solve the problem that exists in the background art effectively.
Description
Technical Field
The utility model relates to a movable piece specifically is a formula check valve advances one by one.
Background
In order to prevent inconvenience in taking and taking or damage to machinery when fluid flows in a pipeline, a check valve is additionally arranged in the pipeline and can provide a unified effect of fluid flow direction so as to control the fluid not to flow back and effectively prevent any problem possibly caused by the backflow of the fluid.
The check valve that has now is mostly the combination of valve block and spring, and is mostly a grade valve, and the burden that single spring bore is bigger, and the spring part fatigue can't be sealed appear easily, and because gas or liquid want smooth circulation to need to break through the resistance of spring, if pressure is not big enough, unable effectual circulation, and can cause the fluid to break through the valve block when circulating, cause the problem of the vibration and the noise of pipeline.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a progressive check valve, problem in can effectual solution background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a progressive check valve, includes the valve body, and valve body internal surface left side is provided with a frame seat, and a frame seat left side intermediate position threaded connection has a cover seat, and cover seat internal surface has the movable rod through reset spring sliding connection, and the one end that a frame seat was kept away from to the movable rod is connected with the support, and the one end that a frame seat was kept away from to the support is provided with the one-level valve block, and the support internal surface has the second grade valve block through spring sliding.
Further, the outer surface of the bracket base is in threaded connection with the valve body.
Further, the support includes triangle seat dish, and one side that triangle seat dish is close to the one-level valve block and the position that is close to triangle seat dish edge is provided with the cradling piece, and the spout has been seted up to one side that the cradling piece is close to each other, and the stopper sliding connection that spout internal surface and second grade valve block surface were provided with.
Furthermore, sealing gaskets are arranged on the contact surface of the outer surface of the first-stage valve block and the valve body and the contact surface of the outer surface of the second-stage valve block and the inner surface of the first-stage valve block.
Further, the elastic coefficient of the return spring is larger than that of the spring.
The working principle and the beneficial effects are as follows: the support seat is arranged on the left side of the inner surface of the valve body, the sleeve seat is in threaded connection with the middle position of the left side of the support seat, the movable rod is connected with the inner surface of the sleeve seat in a sliding mode through the reset spring, the end, away from the support seat, of the movable rod is connected with the support, the first-stage valve block is arranged at the end, away from the support seat, of the support, and the secondary valve is connected with the inner surface of the support in a sliding mode through;
when the valve is used, the valve body is communicated with a pipeline, fluid flows in from the right end and flows out from the left end, when the fluid pressure is small, the flow of the fluid of the secondary valve plate is firstly jacked, the fluid pressure is gradually increased to further jack the primary valve plate, the situation that the fluid jacks the primary valve plate suddenly to cause the pipeline to vibrate or generate abnormal sound can be effectively avoided, when the fluid pressure is large, the primary valve plate and the secondary valve plate are both in a jacked-open state, the phenomenon that a single spring is stressed by too large pressure can be avoided, the spring is easy to fatigue can be caused, the service life of the valve can be properly prolonged, and the problems existing in the background technology can.
Drawings
Fig. 1 is a schematic cross-sectional structure of the present invention;
fig. 2 is a schematic side view of the bracket holder of the present invention.
In the figure: 1. a valve body; 2. a support base; 3. a sleeve seat; 4. a movable rod; 5. a support; 51. a triangular seat disc; 52. a support rod; 6. a first-stage valve plate; 7. a two-stage valve plate.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1-2, a progressive check valve, including valve body 1, 1 internal surface left side of valve body is provided with support seat 2, 2 left side intermediate position threaded connection of support seat has a cover seat 3, the length that can change the cover seat and then change the maximum stroke of one-level valve block, play the effect of restriction fluid maximum flow, 3 internal surfaces of cover seat have movable rod 4 through reset spring sliding connection, the one end that support seat 2 was kept away from to movable rod 4 is connected with support 5, the one end that support seat 2 was kept away from to support 5 is provided with one-level valve block 6, there is second grade valve block 7 through spring sliding connection to support 5 internal surface.
The utility model relates to a progressive check valve, through valve body 1 and pipeline intercommunication, fluid flows into valve body 1 from right-hand member to a left side, and when fluid pressure was less, earlier back-off 7 fluid circulation of second grade valve block, fluid pressure crescent and then back-off one-level valve block 6, the effectual problem that exists among the prior art of having solved.
Wherein, 2 surfaces of support frame seat and 1 threaded connection of valve body, the convenience is changed the cover seat, and the biggest stroke of restriction one-level valve block also conveniently maintains inside spare part simultaneously, improves life.
Wherein, support 5 includes triangle seat dish 51, and triangle seat dish 51 is close to one side of one-level valve block 6 and is close to the position of triangle seat dish 51 corner and is provided with cradling piece 52, and the spout has been seted up to one side that cradling piece 52 is close to each other, and the stopper sliding connection that spout internal surface and second grade valve block 7 surface were provided with, and the spout of seting up on the support can restrict the maximum stroke of second grade valve block and also can guarantee its level and smooth work simultaneously.
Wherein, the contact surface of the outer surface of the first-stage valve plate 6 and the valve body 1, and the contact surface of the outer surface of the second-stage valve plate 7 and the inner surface of the first-stage valve plate 6 are both provided with sealing gaskets, so that the sealing performance during the non-return is ensured.
The elastic coefficient of the reset spring is larger than that of the spring, when the fluid pressure is small, the second-stage valve plate is jacked open firstly for fluid circulation, the fluid pressure is increased gradually, and then the first-stage valve plate is jacked open, so that the situation that the pipeline vibrates or abnormal sound is generated due to the fact that the first-stage valve plate is jacked open suddenly by the fluid can be effectively avoided.
Claims (5)
1. The utility model provides a progressive check valve, includes valve body (1), its characterized in that: the valve body (1) internal surface left side is provided with support seat (2), and support seat (2) left side intermediate position threaded connection has cover seat (3), and cover seat (3) internal surface has movable rod (4) through reset spring sliding connection, and the one end that support seat (2) were kept away from in movable rod (4) is connected with support (5), and the one end that support seat (2) were kept away from in support (5) is provided with one-level valve block (6), and support (5) internal surface has second grade valve block (7) through spring sliding connection.
2. The progressive check valve of claim 1, wherein: the outer surface of the bracket seat (2) is in threaded connection with the valve body (1).
3. The progressive check valve of claim 1, wherein: the support (5) comprises a triangular seat disc (51), a support rod (52) is arranged at one side, close to the first-stage valve block (6), of the triangular seat disc (51) and at the position, close to the corner of the triangular seat disc (51), a sliding groove is formed in one side, close to the support rod (52), of the support rod, and the inner surface of the sliding groove is connected with a limiting block arranged on the outer surface of the second-stage valve block (7) in a sliding mode.
4. The progressive check valve of claim 1, wherein: sealing gaskets are arranged on the contact surfaces of the outer surface of the first-stage valve plate (6) and the valve body (1) and the contact surfaces of the outer surface of the second-stage valve plate (7) and the inner surface of the first-stage valve plate (6).
5. The progressive check valve of claim 1, wherein: the spring force coefficient of the return spring is larger than that of the spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921280779 | 2019-08-08 | ||
| CN2019212807791 | 2019-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212584336U true CN212584336U (en) | 2021-02-23 |
Family
ID=74656114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020435673.0U Expired - Fee Related CN212584336U (en) | 2019-08-08 | 2020-03-30 | Progressive check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212584336U (en) |
-
2020
- 2020-03-30 CN CN202020435673.0U patent/CN212584336U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210601 Address after: 201613 building 4, 28 Rongle East Road, Songjiang District, Shanghai Patentee after: KANGBAISHI ELECTROMECHANICAL (SHANGHAI) Co.,Ltd. Address before: 237000 Siwei formation, Baoxing village, Muchang Town, Jin'an District, Lu'an City, Anhui Province Patentee before: Li Xiusheng |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |