CN203836313U - Ultra-low temperature safety valve preventing piston from rotating - Google Patents
Ultra-low temperature safety valve preventing piston from rotating Download PDFInfo
- Publication number
- CN203836313U CN203836313U CN201420197723.0U CN201420197723U CN203836313U CN 203836313 U CN203836313 U CN 203836313U CN 201420197723 U CN201420197723 U CN 201420197723U CN 203836313 U CN203836313 U CN 203836313U
- Authority
- CN
- China
- Prior art keywords
- piston
- valve body
- valve
- safety valve
- temperature safety
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Temperature-Responsive Valves (AREA)
Abstract
The utility model discloses an ultra-low temperature safety valve preventing piston from rotating. The safety valve comprises a valve body, a valve hole penetrating through the valve body is formed in the valve body, a sealing gasket is arranged in the valve hole, an air inlet liquid channel connector is arranged in the valve hole in one end of the sealing gasket, the other end of the sealing gasket is provided with a piston, the liquid outlet end of the valve body is provided with an adjusting screw, a spring is disposed between the piston and the adjusting screw, a screw hole is formed in the position, corresponding to the instillation position of the piston, on the valve body, a positioning screw used for preventing the piston from rotating is arranged in the screw hole, a bayonet is formed in the position, corresponding to the positioning screw, of the side face of the piston, and the end of the positioning screw is clamped in the bayonet. According to the safety valve, the valve body is provided with the positioning screw, the positioning screw can control rotation of the piston, and accordingly good sealing performance of the valve can be guaranteed when the piston resets.
Description
Technical field
The utility model relates to a kind of ultralow temperature safety valve of anti-piston rotation, and its operating temperature range is-200 DEG C～+ 100 DEG C.
Background technique
At present, the piston that safety valve adopts is on the market due to the rotary orientation of spring, and the sealing gasket of valve has rotation after opening, and while closing after opening, piston can produce bias and reveal again.
Summary of the invention
The problem of sealing face leakage while closing again after piston that existing safety valve exists is opened in order to overcome, the utility model provides a kind of ultralow temperature safety valve of the anti-piston rotation of sealing face leakage problem while closing again after can effectively solving piston and opening.
The technical solution adopted in the utility model is:
A kind of ultralow temperature safety valve of anti-piston rotation, comprise valve body, in valve body, be provided with the valve opening that connects valve body, be arranged on the sealing gasket in valve opening, in the valve opening of one end of sealing gasket, be provided with the liquid channel interface of air inlet, the other end is provided with piston, the outlet end of described valve body is provided with adjusting screw, between piston and adjusting screw, be provided with spring, it is characterized in that: on described valve body, corresponding piston mounting point is provided with screw hole, in screw hole, be provided with the positioning screwn for preventing piston rotation, the position of the described corresponding positioning screwn of piston side face is provided with bayonet socket, the end of described positioning screwn is stuck in described bayonet socket.
Further, in described piston and adjusting screw, be respectively arranged with spring positioning table terrace.
Further, described valve body lower portion is provided with drain opening near a side at the liquid channel interface of air inlet position.
The beneficial effects of the utility model are embodied in: positioning screwn is housed on valve body, and the rotation that this positioning screwn can control piston, thus ensure that piston still has good sealability in the time resetting.
Brief description of the drawings
Fig. 1 is the structural representation of the ultralow temperature safety valve of a kind of anti-piston rotation of the utility model.
Embodiment
With reference to Fig. 1, a kind of ultralow temperature safety valve of anti-piston rotation, comprise valve body 1, in valve body 1, be provided with the valve opening that connects valve body, be arranged on the sealing gasket 2 in valve opening, in the valve opening of one end of sealing gasket 2, be provided with the liquid channel interface 8 of air inlet, the other end is provided with piston 3, the outlet end of described valve body 1 is provided with adjusting screw 6, between piston 3 and adjusting screw 6, be provided with spring 5, on described valve body 1, corresponding piston 3 mounting points are provided with screw hole, in screw hole, be provided with the positioning screwn 4 for preventing piston rotation, the position of the described corresponding positioning screwn 4 in piston 3 sides is provided with bayonet socket, the end of described positioning screwn 4 is stuck in described bayonet socket.
Further, in described piston 3 and adjusting screw 6, be respectively arranged with spring positioning table terrace.
Further, described valve body 1 bottom is provided with drain opening 7 near a side at the liquid channel interface of air inlet 8 positions.
Content described in this specification embodiment is only enumerating of way of realization to inventive concept; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and conceive the equivalent technologies means that can expect according to the utility model in those skilled in the art.
Claims (3)
1. the ultralow temperature safety valve of an anti-piston rotation, comprise valve body, in valve body, be provided with the valve opening that connects valve body, be arranged on the sealing gasket in valve opening, in the valve opening of one end of sealing gasket, be provided with the liquid channel interface of air inlet, the other end is provided with piston, the outlet end of described valve body is provided with adjusting screw, between piston and adjusting screw, be provided with spring, it is characterized in that: on described valve body, corresponding piston mounting point is provided with screw hole, in screw hole, be provided with the positioning screwn for preventing piston rotation, the position of the described corresponding positioning screwn of piston side face is provided with bayonet socket, the end of described positioning screwn is stuck in described bayonet socket.
2. the ultralow temperature safety valve of a kind of anti-piston rotation as claimed in claim 1, is characterized in that: in described piston and adjusting screw, be respectively arranged with spring positioning table terrace.
3. the ultralow temperature safety valve of a kind of anti-piston rotation as claimed in claim 1 or 2, is characterized in that: described valve body lower portion is provided with drain opening near a side at the liquid channel interface of air inlet position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197723.0U CN203836313U (en) | 2014-04-21 | 2014-04-21 | Ultra-low temperature safety valve preventing piston from rotating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197723.0U CN203836313U (en) | 2014-04-21 | 2014-04-21 | Ultra-low temperature safety valve preventing piston from rotating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203836313U true CN203836313U (en) | 2014-09-17 |
Family
ID=51514155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197723.0U Expired - Lifetime CN203836313U (en) | 2014-04-21 | 2014-04-21 | Ultra-low temperature safety valve preventing piston from rotating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203836313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720599A (en) * | 2020-07-01 | 2020-09-29 | 强一半导体（苏州）有限公司 | Spring type pressure relief structure for power device test probe card and installation and calibration method thereof |
| WO2021035625A1 (en) * | 2019-08-29 | 2021-03-04 | Engineered Controls International, Llc | Pressure-relief valve |
-
2014
- 2014-04-21 CN CN201420197723.0U patent/CN203836313U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021035625A1 (en) * | 2019-08-29 | 2021-03-04 | Engineered Controls International, Llc | Pressure-relief valve |
| EP4048927A4 (en) * | 2019-08-29 | 2023-09-20 | Engineered Controls International, LLC | Pressure-relief valve |
| CN111720599A (en) * | 2020-07-01 | 2020-09-29 | 强一半导体（苏州）有限公司 | Spring type pressure relief structure for power device test probe card and installation and calibration method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190507 Address after: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG MINGSHI XINGXIN HVAC TECHNOLOGY Co.,Ltd. Address before: 311814 No. 8 Mingshi Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG MINGSHI VALVE CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Mingshi Xingxin HVAC Technology Co.,Ltd. Address before: 311814 No. 7-1 Fengye Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG MINGSHI XINGXIN HVAC TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |