CN2318359Y - Open-close device for air door - Google Patents
Open-close device for air door Download PDFInfo
- Publication number
- CN2318359Y CN2318359Y CN 97247979 CN97247979U CN2318359Y CN 2318359 Y CN2318359 Y CN 2318359Y CN 97247979 CN97247979 CN 97247979 CN 97247979 U CN97247979 U CN 97247979U CN 2318359 Y CN2318359 Y CN 2318359Y
- Authority
- CN
- China
- Prior art keywords
- spring
- cavity
- valve
- counterboring
- utility
- 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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- Check Valves (AREA)
Abstract
The utility model discloses an open-close device for air doors. A cavity whose diameter is bigger than an air hole is formed on the bottom of an existing valve pile by means of the mode of counterboring. A position which is a definite distance away from the bottom surface of the cavity is provided with a spring bicker transversely passing through the valve pile. A spring is placed on the bicker, a round ball is arranged on the spring, the top part of the cavity of the counterboring cavity is fixed with the elastic seal pad of a central through hole, and the round ball tightly gores the seal pad. The utility model has the advantages of simple structure, convenient use, durability and good sealing, and the utility model can reduce the cost of the air door device, being an ideal open-close device for air doors.
Description
The utility model belongs to the improvement of valve inside, relates to a kind of valve headstock gear.
The present valve inside apparatus structure complexity of using, be made up of the valve cock on valve stake and its top as the valve inside on the bicycle, socket one valve sebific duct on the valve cock comes confining gas by the elasticity of valve sebific duct, the valve hose aging leaks gas easily, causes inconvenience.Valve inside on the automobile is made up of the plunger on valve stake and top, its plunger complex structure, and gas channel is little, production, packaging technology complexity, the cost height, and need special key mounting or dismounting, use also very inconvenience.
The purpose of this utility model provides a kind of simple in structure, cost is low, good sealing effect is easy to use valve headstock gear.
The purpose of this utility model adopts following technical scheme to realize: it is at the cavity of bottom counterboring one diameter that has the valve stake now greater than pore, there is a spring that crosses the valve stake to argue at distance cavity floor certain distance, argue to go up and place a spring, place a ball on the spring, the elastic sealing gasket of a central bore is fixed at the cavity top of counterboring, and ball presses closer sealing mat.
Because the utility model is in addition improved on the basis of existing valve stake, so it is simple in structure, highly versatile, it has saved such as valve sebific duct and pressure cap on the bicycle, has deducted the fluting operation of valve stake; Labyrinth and complicated technology that it has saved the tire valve pin greatly reduce cost, and can be common to all vehicles, are a kind of more satisfactory valve headstock gears.
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the utility model structural representation.
As shown in FIG., described valve headstock gear comprises the valve stake 1 of existing middle band pore, at the cavity of the bottom of valve stake 1 counterboring one diameter greater than pore, there is a spring that crosses valve stake 1 to argue 2 in the appropriate location of distance cavity bottom, spring is argued and is placed a spring 3 on 2, spring 3 upper ends one ball 4, fix the elastic sealing gasket 5 of a central bore at the cavity top of counterboring, ball 4 presses closer sealing mat 5 centers under the bounce of spring 3 and the effect of inner tube of a tyre inner air pressure, force its axial dimension to dwindle, radial dimension enlarges and tightly fills in cavity in counterboring, and the inner tube of a tyre can not be leaked gas.
When inflation, high pressure draught presses ball 4 and spring 3 to sink by the central bore of pore in the valve stake 1 and elastic sealing gasket 5, and gas is from the gap of the internal chamber wall of ball 4, spring 3 gentle goal posts 1, and space, 2 both sides enters the inner tube of a tyre through arguing.When stopping to inflate, make ball 4 press the cavity of air-vents and counterboring in the middle of the elastic sealing gasket 5 under the effect by the recoil air-flow of spring 4 bounces and the inner tube of a tyre, make its air tight purpose thereby reach sealing inner tube of a tyre air.When needing to repair the inner tube of a tyre, in valve stake 1 outer end centre porosity, press ball 4 to exit with iron wire.
Claims (1)
1, a kind of valve headstock gear, comprise the leachy valve stake in center (1), it is characterized in that: at bottom counterboring one diameter of valve stake (1) cavity greater than pore, at distance cavity bottom certain distance a spring that crosses valve stake (1) argue (2) is arranged, spring argue (2) go up to place spring (3), spring (3) upper ends one ball (4) is fixed the elastic sealing gasket (5) of a central bore at the cavity top of counterboring, ball (4) presses closer sealing mat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247979 CN2318359Y (en) | 1997-09-11 | 1997-09-11 | Open-close device for air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97247979 CN2318359Y (en) | 1997-09-11 | 1997-09-11 | Open-close device for air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318359Y true CN2318359Y (en) | 1999-05-12 |
Family
ID=33955318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97247979 Expired - Fee Related CN2318359Y (en) | 1997-09-11 | 1997-09-11 | Open-close device for air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318359Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763826A (en) * | 2015-03-27 | 2015-07-08 | 苏州福润机械有限公司 | Inflation valve of bicycle tyre |
| CN106274787A (en) * | 2016-08-04 | 2017-01-04 | 泰州市易通车件有限公司 | A kind of intelligence aerating gasbag |
-
1997
- 1997-09-11 CN CN 97247979 patent/CN2318359Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763826A (en) * | 2015-03-27 | 2015-07-08 | 苏州福润机械有限公司 | Inflation valve of bicycle tyre |
| CN106274787A (en) * | 2016-08-04 | 2017-01-04 | 泰州市易通车件有限公司 | A kind of intelligence aerating gasbag |
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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 |