CN2212094Y - Automatic pressure keeping inflator - Google Patents
Automatic pressure keeping inflator Download PDFInfo
- Publication number
- CN2212094Y CN2212094Y CN 94228833 CN94228833U CN2212094Y CN 2212094 Y CN2212094 Y CN 2212094Y CN 94228833 CN94228833 CN 94228833 CN 94228833 U CN94228833 U CN 94228833U CN 2212094 Y CN2212094 Y CN 2212094Y
- Authority
- CN
- China
- Prior art keywords
- spring
- inflator
- ball
- cylindrical shell
- relief hole
- 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
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- Safety Valves (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses an automatic pressure keeping inflator. One end of the inflator body is especially provided with a decompression hole whose inner part is connected with a pressure regulating screw. The inner part of the pressure regulating screw has a discharge hole in which a spring is arranged, and the spring pushes upward a ball to the port of the decompression hole of the inflator body. When the gas in a tyre exceeds the elastic force of the spring, the high pressure gas can push aside the ball of the decompression hole and is then exhausted by the pressure regulating screw, which can remind an operator and can effective prevent the phenomenal occurrence of bursting tyres due to over inflation.
Description
The utility model belongs to inflator, relates to a kind of automatic pressurize inflator pump.
When giving tyre inflation with inflator pump of the prior art, the operator does not often know whether be full of in the tire, whether pressure is suitable, so the somebody can break tire.In order to prevent that this phenomenon from occurring, people have to touch cover tire with hand after filling for a moment gas, and whether the air pressure of having a try is full of.Run into sleety weather, cover tire has been stained with sleet, goes pressure testing with hand so again, and is just very inconvenient.
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of simple in structure, can design the air pressure limit arbitrarily, when tire internal pressure self-bleeding automatic pressurize inflator pump when giving level pressure power.
The utility model has a cylindrical shell, air-filled pore and relief hole are arranged on the cylindrical shell, piston and piston rod are arranged in cylindrical shell, at the relief hole place by the air pressure adjustment screw that has been threaded, a drain boles is arranged in the air pressure adjustment screw, a spring is arranged in this hole, and the lower end of spring withstands on the relief hole port with a ball it is sealed.Ball can be backed down when the cylindrical shell internal air pressure is excessive, pressurized gas release through the drain boles of relief hole and air pressure adjusting screw.
The utility model has the advantages that simple in structure, when the tire internal pressure is excessive, can releasing pressure automatically, safety, convenient.
Fig. 1 is a plan view of the present utility model;
Describe in detail below in conjunction with accompanying drawing.
The utility model has a cylindrical shell 6, and an air-filled pore of inflating in tire 5 is arranged on the cylindrical shell 6.A piston 8 and piston rod 7 also are installed.This part structure is the same with common inflator pump, and different is at the cylindrical shell left end relief hole to be arranged, and is processed with internal thread on relief hole, and by the air pressure adjustment screw 4 that has been threaded.A shoulder hole 3 that runs through two ends is arranged on said air pressure adjustment screw 4, be placed with a spring 2 in this hole, there is a ball 1 on top, the lower end of spring 2, also can be without ball, and alternative with a rubber cushion.Ball 1 is just in time sealed the relief hole port of cylindrical shell 6.
During use, regulate the elastic force of spring 2 as required.During normal running, the elastic force of spring makes ball 1 or rubber cushion that relief hole is shut.Piston is pressed into pressurized air in the tire from air-filled pore 5.When the tire internal pressure reaches the level pressure power of giving, promptly during the elastic force of spring 2, the pressurized air in the cylindrical shell 6 is just with ball or rubber cushion 1 jack-up, relief hole is opened, pressurized gas can be gone out through the drain boles of air pressure adjustment screw 4 from relief hole, sound simultaneously, thereby remind operator's tire internal air pressure sufficient.When the tire internal pressure was lower than the elastic force of spring 2, spring can reset again, ball or rubber cushion 1 is withstood relief hole again it is shut again.This inflator pump can be regulated the elastic force of the screw-in length of air pressure adjustment screw with Regulation spring at any time as required, thereby the phenomenon of having avoided exploding tire takes place.
Claims (1)
- A kind of automatic pressurize inflator pump, comprise cylindrical shell, be installed in piston rod and piston in the cylindrical shell, it is characterized in that: a relief hole is arranged on cylindrical shell, be connected with an air pressure adjustment screw at the relief hole place, a drain boles is arranged on the air pressure adjustment screw, a spring is arranged in the hole, the spring lower end has a ball to push up the relief hole port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228833 CN2212094Y (en) | 1994-06-07 | 1994-06-07 | Automatic pressure keeping inflator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228833 CN2212094Y (en) | 1994-06-07 | 1994-06-07 | Automatic pressure keeping inflator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212094Y true CN2212094Y (en) | 1995-11-08 |
Family
ID=33841291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94228833 Expired - Fee Related CN2212094Y (en) | 1994-06-07 | 1994-06-07 | Automatic pressure keeping inflator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212094Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269148A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Piston air compressor |
| CN102416539A (en) * | 2011-11-25 | 2012-04-18 | 北京欧亚新科技发展有限公司 | Automatic adjustable air plug group |
| CN108317065A (en) * | 2018-01-05 | 2018-07-24 | 宁波市艾柯特工具科技发展有限公司 | A kind of interior booster inflater of gas-pressure adjustable |
| CN113398366A (en) * | 2021-06-17 | 2021-09-17 | 青岛大学附属医院 | Venous transfusion anti-seepage device for operating room nursing |
| CN114559382A (en) * | 2022-04-01 | 2022-05-31 | 深圳中科飞测科技股份有限公司 | Air-float bearing device |
-
1994
- 1994-06-07 CN CN 94228833 patent/CN2212094Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269148A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Piston air compressor |
| CN102416539A (en) * | 2011-11-25 | 2012-04-18 | 北京欧亚新科技发展有限公司 | Automatic adjustable air plug group |
| CN102416539B (en) * | 2011-11-25 | 2015-01-28 | 北京欧亚新科技发展有限公司 | Automatic adjustable air plug group |
| CN108317065A (en) * | 2018-01-05 | 2018-07-24 | 宁波市艾柯特工具科技发展有限公司 | A kind of interior booster inflater of gas-pressure adjustable |
| CN113398366A (en) * | 2021-06-17 | 2021-09-17 | 青岛大学附属医院 | Venous transfusion anti-seepage device for operating room nursing |
| CN114559382A (en) * | 2022-04-01 | 2022-05-31 | 深圳中科飞测科技股份有限公司 | Air-float bearing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |