CN2740858Y - Valve core with automatic pressure release - Google Patents
Valve core with automatic pressure release Download PDFInfo
- Publication number
- CN2740858Y CN2740858Y CN 200420080301 CN200420080301U CN2740858Y CN 2740858 Y CN2740858 Y CN 2740858Y CN 200420080301 CN200420080301 CN 200420080301 CN 200420080301 U CN200420080301 U CN 200420080301U CN 2740858 Y CN2740858 Y CN 2740858Y
- Authority
- CN
- China
- Prior art keywords
- outer tube
- valve core
- sealing plug
- rod
- 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
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Abstract
The utility model relates to a component in the technical field of tires, in particular to an automatic pressure reducing valve core fixed to the tire with inner tire or the vacuum tire without inner tire. The automatic pressure reducing valve core is characterized in that the external tube structure is redesigned on the basis of the prior applied patent of automatic pressure reducing valve cores. An integral outer tube is redesigned into three segments which can be regulated in rotating way. The disadvantages of the technical scheme of the prior patent are overcome. The axial position of the middle rod can be changed by adjusting the back segment of the outer tube and the adhesion state between the sealing plug and the sealing strip can be changed so as to change pressure value by adjusting the front segment of the outer tube. The utility model further improves the automatic discharging function of the valve core.
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 tubeless vacuum tire.
Background technique
Tire after the inflation is in use because rising of extraneous temperature or long-play, can cause that tyre temperature raises, the tire inner air pressure increases, the surface of contact on tire and ground reduces, and has caused tire aging in advance, the active braking distance lengthening, effectively braking weakens.Existing tire valve cored structure 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 air pressure surpasses the highest safety value, easily causes the tire blast, thereby causes major traffic accidents.Can only inflate air inlet for solving existing valve inside, the deficiency that can't when air pressure raises and surpass the tire safety working pressure, reduce pressure voluntarily, I am behind the existing valve core structure of research, structure to existing valve inside is improved, and applied for utility model patent, structural feature after the improvement is in the sealing plug rear end of diaphragm seal one side spring to be set, 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 upper and lower bit slice, outer tube inward turning between the upper and lower bit slice has stop nut etc., the spring that this structure utilizes the sealing plug rear end to be provided with, make that sealing plug is the same with king-rod can be moved axially, under normal conditions, diaphragm seal is close to sealing plug, neither air inlet holds one's breath again, promote the king-rod reach during inflation, diaphragm seal is separated with sealing plug and produce the space, gas enters in the tire, when the rising of tire internal air pressure exceeds standard, the tire internal air pressure promotes sealing plug to move behind the pressure spring, diaphragm seal is separated with sealing plug and produce the space, thereby a part of gas that leaks is realized decompression automatically.But this structure also comes with some shortcomings in practice, because of being close to valve inside conduit on the tire in the stage casing of sealing plug, when mounted, promote easily to move behind the sealing plug and diaphragm seal produces the gap, and the position of king-rod is fixed, and inflation promptly can be lost heart.
Summary of the invention
What the automatic decompression valve core that the purpose of this utility model designs at me existed is more above-mentioned not enough, provides to be beneficial to and regulates the sealing plug position, guarantees the automatic decompression valve core that normality lower seal plug and diaphragm seal are close to.
The purpose of this utility model is achieved through the following technical solutions, a kind of automatic decompression valve core, comprise outer tube, king-rod in the outer tube, the upper and lower bit slice of middle rod rear end, stop nut between the upper and lower bit slice, the spring that is nested with on the king-rod, the diaphragm seal of king-rod front end, sealing plug after the diaphragm seal and spring, outer tube leading portion external thread part has axial slits, it is characterized in that described outer tube connects and composes by three sections, the stage casing is the pressure adjusting nut, the spin outer tube back segment at king-rod upper and lower bit slice place of its internal thread place, the spin outer tube leading portion at diaphragm seal and sealing plug place of its outside thread, spring one end of sealing plug rear end is tight against the front end of pressure adjusting nut; The spin outer surface of portion of pressure adjusting nut and outer tube leading portion indicates force value.
The utility model is on the basis of the automatic decompression valve core patent of preceding application, structure to outer tube redesigns, becoming whole outer tube is made of three sections of rotatable adjusting, overcome the deficiency of preceding patented technology scheme, both can regulate outer tube back segment changed the axial position of king-rod, can regulate outer tube leading portion changes the fit-state of sealing plug and diaphragm seal again, changes the force value size, the function of losing heart automatically of valve inside that the utility model is further perfect.
Description of drawings
Accompanying drawing is that the utility model is nested with at the supravasal sectional structure schematic representation of tyre valve core;
In the accompanying drawing: the 1st, outer tube, the 2nd, tyre valve core conduit, the 3rd, king-rod, the 4th, stop nut, the 5th, spring, the 6th, diaphragm seal, the 7th, sealing plug, the 8th, spring, the 9th, upper limit bit slice, the 10th, lower limit bit slice, the 11st, pressure adjusting nut, the 12nd, force value.
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, diaphragm seal 6, sealing plug 7, spring 8 constitutes, outer tube 1 connects to form by three sections, it is back segment, the stage casing is pressure adjusting nut 11 and leading portion, the spin internal thread of pressure adjusting nut 11 of back segment, the outside thread of the pressure adjusting nut 11 leading portions outer tube leading portion that spins, the outside thread of pressure adjusting nut 11 leading portions is marked with the force value mark, during use, the utility model cover is inserted in outside the valve inside conduit 2, and be rotated with through nut, the inwall of the center section part of sealing plug 7 and valve inside conduit 2 is close to sealing, and adjustable pressure adjusting nut 11, adjust the state of sealing plug 7 and diaphragm seal 6, under the normality, by regulating stop nut 4, king-rod 3 can be moved axially, make the diaphragm seal 6 of its front end produce the gap with sealing plug 7, during inflation, promote king-rod 3, gas is entered in the tire from the gap of diaphragm seal 6 and 7 generations of sealing plug, the front end of the rear end of sealing plug 7 and pressure adjusting nut 11 has spring 8, sealing plug 7 can move axially in valve inside conduit 2 under the effect of spring and under the effect of air pressure, when the tire internal pressure is too high, pressure can promote sealing plug 7 pressure springs 8, sealing plug 7 is separated with diaphragm seal 6 produce the gap and disappointing automatically decompression.
Claims (2)
1, a kind of automatic decompression valve core, comprise outer tube, king-rod in the outer tube, the upper and lower bit slice of middle rod rear end, stop nut between the upper and lower bit slice, the spring that is nested with on the king-rod, the diaphragm seal of king-rod front end, sealing plug after the diaphragm seal and spring, outer tube leading portion external thread part has axial slits, it is characterized in that described outer tube connects and composes by three sections, the stage casing is the pressure adjusting nut, the spin outer tube back segment at king-rod upper and lower bit slice place of its internal thread place, the spin outer tube leading portion at diaphragm seal and sealing plug place of its outside thread, spring one end of sealing plug rear end is tight against the front end of pressure adjusting nut.
2, automatic decompression valve core according to claim 1 is characterized in that the spin outer surface of portion of pressure adjusting nut and outer tube leading portion indicates force value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080301 CN2740858Y (en) | 2004-10-15 | 2004-10-15 | Valve core with automatic pressure release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420080301 CN2740858Y (en) | 2004-10-15 | 2004-10-15 | Valve core with automatic pressure release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740858Y true CN2740858Y (en) | 2005-11-16 |
Family
ID=35351148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420080301 Expired - Fee Related CN2740858Y (en) | 2004-10-15 | 2004-10-15 | Valve core with automatic pressure release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740858Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968133A (en) * | 2010-04-22 | 2011-02-09 | 郑州鸿跃交通科技有限公司 | Multifunctional automatic pressure-reducing anti-explosion valve core |
| CN102997465A (en) * | 2012-10-13 | 2013-03-27 | 滁州伯恩太阳能科技有限公司 | Charging connector of solar hollow plate collector and collector |
-
2004
- 2004-10-15 CN CN 200420080301 patent/CN2740858Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968133A (en) * | 2010-04-22 | 2011-02-09 | 郑州鸿跃交通科技有限公司 | Multifunctional automatic pressure-reducing anti-explosion valve core |
| CN102997465A (en) * | 2012-10-13 | 2013-03-27 | 滁州伯恩太阳能科技有限公司 | Charging connector of solar hollow plate collector and collector |
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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 |