CN2663185Y - Automatic pressure reduction inside valve - Google Patents
Automatic pressure reduction inside valve Download PDFInfo
- Publication number
- CN2663185Y CN2663185Y CN 200320119891 CN200320119891U CN2663185Y CN 2663185 Y CN2663185 Y CN 2663185Y CN 200320119891 CN200320119891 CN 200320119891 CN 200320119891 U CN200320119891 U CN 200320119891U CN 2663185 Y CN2663185 Y CN 2663185Y
- Authority
- CN
- China
- Prior art keywords
- sealing plug
- tire
- outer tube
- valve core
- king
- 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
Landscapes
- Tires In General (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to an automatic decompressing valve core in the technical field of the tire, which is essentially characterized in that based on the prior valve core, a spring is arranged between one end of a sealing plug and ladder face in an outer tube, making the sealing plug be able to axially move along the inner wall of the valve core tube of the tire; when the air pressure in the tire is extremely high, the sealing plug is pushed and the compressing spring moves backwards, and thus, a gap is produced between the sealing plug and a sealing piece, realizing an automatic air discharging and decompressing. Having a simple and reasonable structure, the utility model is able to effectively prevent the happenings of the bad traffic accidents caused by the tire explosion due to the extremely high air pressure, providing a remarkable economic effect and social effect.
Description
Technical field
The utility model relates to parts of tyre technology, relates in particular to the automatic decompression valve core that is fixed on inner tube of a tyre formula tire or the inner tube free vacuum tire.
Background technology
Tire after the inflation is in use because extraneous temperature build-up or long-play, can cause that tyre temperature raises, tire internal gas pressure pressure increases, tire and ground-surface contact surface reduce, and have caused tire aging in advance, the active braking distance lengthening, effectively braking weakens.The structure of existing tyre valve core is the inflation air inlet, and the decompression of can not losing heart voluntarily under the situation that air pressure raises when the tire internal gas pressure surpasses the highest safety value, easily causes the tire blast, thereby causes major traffic accidents.
Summary of the invention
The purpose of this utility model be at existing tyre valve core under situation in working order, can only inflate air inlet, the deficiency of the decompression of can't losing heart voluntarily when air pressure raises and surpass the tire safety operation pressure provides a kind of automatic decompression valve core.
The purpose of this utility model is achieved through the following technical solutions: a kind of automatic decompression valve core, comprise the spring that is nested with on the king-rod, king-rod of the intrinsic seal strip of an end in the outer tube, outer tube, the sealing plug rear end that it is characterized in that seal strip one side is provided with spring, a sealing plug part is close to the valve inside pipe inner wall that is fixed on the tire, the other end of king-rod is provided with the bound bit slice, outer tube inward turning between the king-rod bound bit slice has stop nut, and the internal diameter of outer tube leading portion is slightly larger than valve inside conduit external diameter.
The utility model utilizes the compressibility and the elastic force of spring, end at sealing plug is provided with spring, sealing plug is the same with king-rod can be moved axially thereby make, under normal conditions, the seal strip on the king-rod is close to sealing plug under original action of the spring that is nested with, and sealing plug is close to sealing with the valve inside pipe inner wall again simultaneously, neither air inlet holds one's breath again, promote the king-rod reach during inflation, seal strip is separated with sealing plug produce the space, gas enters in the tire; When the rising of tire internal gas pressure exceeds standard, air pressure promotes sealing plug to move behind the compression spring, sealing plug is separated with seal strip produce the space, thereby a part of gas that leaks is realized decompression automatically, after air pressure is normal, sealing plug moves forward under the spring force effect again, make itself and seal strip be close to sealing, stop nut is set, can regulates the appropriate gap between seal strip and sealing plug on the one hand, simultaneously again can be by the stop nut that circles round, king-rod can't be moved forward, its seal strip and sealing plug are tightly fitted, and play the effect of locking, and this can prevent effectively that fully inflated spare tire from losing heart from here because of the idle of long period.
One cascaded surface is arranged in the outer tube, and the other end of the spring that the sealing plug rear end is provided with is close to cascaded surface; Outer tube leading portion external thread part has axial slits.
Description of drawings
Fig. 1 is nested with at the supravasal sectional structure scheme drawing of tyre valve core for the utility model.
Among the figure, the 1st, outer tube, the 2nd, tyre valve core conduit, the 3rd, king-rod, the 4th, stop nut, the 5th, spring, the 6th, seal strip, the 7th, sealing plug, the 8th, spring, the 9th, upper limit bit slice, the 10th, lower limit bit slice.
The specific embodiment
The utility model is by outer tube 1, king-rod 3, upper limit bit slice 9, lower limit bit slice 10, stop nut 4, spring 5, seal strip 6, sealing plug 7, spring 8 constitutes, during use, the utility model cover is inserted in outside the valve inside conduit 2, the part of sealing plug 7 is close to sealing with the inwall of valve inside conduit 2, under the normality, by regulating stop nut 4, king-rod 3 can be moved axially, the seal strip 6 of its front end produces the gap with sealing plug 7, during inflation, promote king-rod 3, gas is entered in the tire from the gap of seal strip 6 and 7 generations of sealing plug, the utility model is provided with spring 8 between the rear end of sealing plug 7 and the cascaded surface in the outer tube 1, sealing plug 7 can moved axially in valve inside conduit 2 under the effect of elastic force and under the effect in external force, when the tire internal pressure is too high, can promote sealing plug 7 compression springs 8, sealing plug 7 is separated with seal strip 6 produce the gap and disappointing automatically decompression.
Claims (3)
1, a kind of automatic decompression valve core, comprise the spring that is nested with on the king-rod, king-rod of the intrinsic seal strip of an end in the outer tube, outer tube, the sealing plug rear end that it is characterized in that seal strip one side is provided with spring, a sealing plug part is close to the valve inside pipe inner wall that is fixed on the tire, the other end of king-rod is provided with the bound bit slice, outer tube inward turning between the king-rod bound bit slice has stop nut, and the internal diameter of outer tube leading portion is slightly larger than valve inside conduit external diameter.
2, automatic decompression valve core according to claim 1 is characterized in that a cascaded surface is arranged in the outer tube, and the other end of the spring that the sealing plug rear end is provided with is close to cascaded surface.
3, automatic decompression valve core according to claim 1 is characterized in that outer tube leading portion external thread part has axial slits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119891 CN2663185Y (en) | 2003-11-20 | 2003-11-20 | Automatic pressure reduction inside valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320119891 CN2663185Y (en) | 2003-11-20 | 2003-11-20 | Automatic pressure reduction inside valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663185Y true CN2663185Y (en) | 2004-12-15 |
Family
ID=34347791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320119891 Expired - Fee Related CN2663185Y (en) | 2003-11-20 | 2003-11-20 | Automatic pressure reduction inside valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663185Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642628A (en) * | 2017-09-27 | 2018-01-30 | 杭州科技职业技术学院 | Vent valve for avoiding system of mechanically blowing out |
| CN112854023A (en) * | 2021-01-09 | 2021-05-28 | 喻肇昌 | Support connecting node of steel frame bridge and post-earthquake restoration method thereof |
-
2003
- 2003-11-20 CN CN 200320119891 patent/CN2663185Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642628A (en) * | 2017-09-27 | 2018-01-30 | 杭州科技职业技术学院 | Vent valve for avoiding system of mechanically blowing out |
| CN107642628B (en) * | 2017-09-27 | 2024-01-09 | 杭州科技职业技术学院 | Air release valve for mechanical tire burst risk avoidance system |
| CN112854023A (en) * | 2021-01-09 | 2021-05-28 | 喻肇昌 | Support connecting node of steel frame bridge and post-earthquake restoration method thereof |
| CN112854023B (en) * | 2021-01-09 | 2022-11-15 | 喻肇昌 | Support connecting node of steel frame bridge and post-earthquake restoration method thereof |
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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 |