CN203727986U - High pressure exhaust valve - Google Patents
High pressure exhaust valve Download PDFInfo
- Publication number
- CN203727986U CN203727986U CN201420072265.8U CN201420072265U CN203727986U CN 203727986 U CN203727986 U CN 203727986U CN 201420072265 U CN201420072265 U CN 201420072265U CN 203727986 U CN203727986 U CN 203727986U
- Authority
- CN
- China
- Prior art keywords
- exhausr port
- vent plug
- spring
- exhaust port
- air
- 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
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- Safety Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a high pressure exhaust valve, which comprises an exhaust port, wherein an air plug is arranged above the exhaust port, the air plug and the exhaust port are matched with each other through threads to achieve fixed connection, a sealing ring and a spring are arranged between the exhaust port and the air plug, the spring is arranged in the exhaust port, one end of the spring is supported and connected with an air plug outer thread end surface, the other end of the spring is supported and connected with an exhaust port inner thread end surface, and the spring is located in a compressed state when the exhaust port and the air plug. When a seal container does not need to exhaust the air, the air plug and the exhaust port are closely matched not to leak the air, when the sealing container needs to exhaust the air, the air plug is unscrewed, the air is exhausted from matched thread gaps, and the spring which is arranged between the air plug and the exhaust port exerts upper pressure to matched threads, thereby increasing friction between matched surfaces of the matched threads, enabling the air plug not to loose, and being not easy to fall down.
Description
Technical field
The utility model relates to a kind of high pressure air exhaust valve.
Background technology
The exhaust structure of existing leakproof tank is: screw fit seal ring and exhausr port spin together by screw thread, in the working environment of motion, when needs exhaust, need this screw to unscrew so that gas is got rid of from exhausr port through thread pitch, and be easy to like this make screw to produce the risk coming off, for preventing the generation of this problem, existingly following two kinds of locking measures have been adopted: 1) the resistance to glue that falls of screw thread surface point is processed; 2) screw fit seal ring and exhausr port are locking by interference fit.
And there are the following drawbacks of describing in these two kinds locking measures: 1) put the defect that resistance to this scheme of glue that falls exists handling number of times, generally put the resistance to locking measure that falls to processing and substantially lost efficacy after 5 above handling; 2) there is the defect of coupling in interference fit, and the product that different manufacturers does coordinates with it the cooperation situation that will exist in various degree, and then be difficult to the object that reaches locking.
Summary of the invention
The utility model provides a kind of new high pressure air exhaust valve, can the exhaust of easy to exhaust mouth, and can not make again screw or vent plug in the state of getting loose come off, structural safety is effective.
The utility model is realized by following technological means:
A kind of high pressure air exhaust valve, comprise exhausr port, above exhausr port, be provided with vent plug, the mutual screw thread fit of described vent plug and exhausr port achieves a fixed connection, between described exhausr port and vent plug, be provided with seal ring and spring, described spring is located in exhausr port, one end butt vent plug outside thread end face, other end butt exhausr port negative thread end face, described spring upwards pressure for its matching thread face has applied one when exhausr port is connected with vent plug, thereby increased the friction between its fitting surface, vent plug has been coordinated more reliable with exhausr port, difficult drop-off gets off.
Further, the top of vent plug is also provided with a holding part, the negative thread of exhausr port and the outside thread of the vent plug sealing exhausr port that cooperatively interacts.
Finally, to be provided with the profile of anti-slip veins or holding part be hexagon in described holding part outer ring.
The high pressure air exhaust valve of realizing by above technological means, when airtight container does not need exhaust, vent plug and exhausr port closely cooperate air tight, when airtight container needs exhaust, unscrew this vent plug, gas is got rid of from the thread pitch coordinating, and spring between vent plug and exhausr port applies a upward pressure to this matching thread, thereby increased the friction between its fitting surface, made the vent plug can be not loose, be not easy to split away off.
Accompanying drawing explanation
Fig. 1 is the exploded view of High-pressure air valve;
Fig. 2 is the installing condition schematic diagram of High-pressure air valve.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present utility model is described in detail.
As shown in Figure 1, the high pressure air exhaust valve that the top of airtight container is provided with, comprise exhausr port 1, above exhausr port 1, be provided with vent plug 2, described vent plug 2 achieves a fixed connection with the mutual screw thread fit of exhausr port 1, is provided with seal ring 3 and spring 4 between described exhausr port 1 and vent plug 2, described spring 4 is located in exhausr port 1, one end butt vent plug 2 outside thread end faces of spring 4, other end butt exhausr port 1 negative thread end face, described spring 4 when exhausr port 1 is connected with vent plug 2 in compressive state.
Described exhausr port 1 is provided with negative thread, corresponding, and vent plug 2 is provided with outside thread, and the top of vent plug 2 is also provided with a holding part, the outside thread of the negative thread of exhausr port 1 and the vent plug 2 sealing exhausr port that cooperatively interacts.The profile that described holding part outer ring is provided with anti-slip veins or holding part is hexagon, to facilitate when the exhaust, manually or non-slip while adopting spanner to unclamp vent plug.
The mounted state of the air valve of airtight container as shown in Figure 2, vent plug or screw engagement, on exhausr port, and make between vent plug 2, exhausr port 1, seal ring 3 in the close-fitting state of holding one's breath.When airtight container needs exhaust, manual or apparatus screws the holding part of vent plug, left-hand revolution vent plug 2, then vent plug 2 moves up with respect to exhausr port 1, exhausr port starts exhaust, and now spring upwards pressure for its matching thread face has applied one, thereby has increased the friction between its fitting surface, vent plug is coordinated more reliable with exhausr port, difficult drop-off gets off.
The utility model is carried out to the scheme of simple change gained within the scope of the utility model protection, at this, do not enumerate.
Claims (3)
1. a high pressure air exhaust valve, comprise exhausr port, it is characterized in that, be provided with vent plug above exhausr port, the mutual screw thread fit of described vent plug and exhausr port achieves a fixed connection, between described exhausr port and vent plug, be provided with seal ring and spring, described spring is located in exhausr port, one end butt vent plug outside thread end face, other end butt exhausr port negative thread end face, described spring in compressive state, upwards pressure for its screw thread fit face has applied one when exhausr port is connected with vent plug.
2. high pressure air exhaust valve according to claim 1, is characterized in that, described exhausr port is provided with negative thread, accordingly, vent plug is provided with outside thread, and the top of vent plug is also provided with a holding part, the negative thread of exhausr port and the outside thread of the vent plug sealing exhausr port that cooperatively interacts.
3. high pressure air exhaust valve according to claim 2, is characterized in that, the profile that described holding part outer ring is provided with anti-slip veins or holding part is hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072265.8U CN203727986U (en) | 2014-02-19 | 2014-02-19 | High pressure exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072265.8U CN203727986U (en) | 2014-02-19 | 2014-02-19 | High pressure exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203727986U true CN203727986U (en) | 2014-07-23 |
Family
ID=51198076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420072265.8U Expired - Fee Related CN203727986U (en) | 2014-02-19 | 2014-02-19 | High pressure exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203727986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742855A (en) * | 2017-01-23 | 2017-05-31 | 太仓韬信信息科技有限公司 | A kind of power equipment raw material high-temperature storage device |
| CN109515925A (en) * | 2018-10-16 | 2019-03-26 | 广州博昊勘测技术有限公司 | A kind of easy flexible container for changing size |
-
2014
- 2014-02-19 CN CN201420072265.8U patent/CN203727986U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742855A (en) * | 2017-01-23 | 2017-05-31 | 太仓韬信信息科技有限公司 | A kind of power equipment raw material high-temperature storage device |
| CN109515925A (en) * | 2018-10-16 | 2019-03-26 | 广州博昊勘测技术有限公司 | A kind of easy flexible container for changing size |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20220219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |