CN102175383B - Radial holding fastening piece and tire pressure detection device using the same - Google Patents
Radial holding fastening piece and tire pressure detection device using the same Download PDFInfo
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- CN102175383B CN102175383B CN 201110038836 CN201110038836A CN102175383B CN 102175383 B CN102175383 B CN 102175383B CN 201110038836 CN201110038836 CN 201110038836 CN 201110038836 A CN201110038836 A CN 201110038836A CN 102175383 B CN102175383 B CN 102175383B
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- circle
- pressure holding
- radially
- screw rod
- termination
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- 238000001514 detection method Methods 0.000 title abstract 2
- 125000003003 spiro group Chemical group 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to a radial holding fastening piece, and simultaneously relates to a tire pressure detection device using the fastening piece. The fastening piece comprises a threaded rod section and an end socket, wherein the threaded rod section is matched with a nut, diameter of the end socket is more than external diameter of a threaded rod, and a centre of circle of the end socket deviates from that of the threaded rod; the minimum distance from the centre of circle of the threaded rod to a radial holding surface is more than radius of the threaded rod and less than sum of the radius of the end socket and an eccentric throw of the centre of circle of the end socket deviated from the centre of circle of the threaded rod. The eccentric end socket of the invention generates a holding force acting on the radial holding surface so as to naturally generate the needed radial holding function while fastening axially.
Description
Technical field
The present invention relates to a kind of threaded fastener, especially a kind of radially pressure holding securing member also relates to the tire pressure detecting device that adopts this securing member simultaneously.
Background technology
As everyone knows; The conventional fasteners of bolt, screw and so on can only produce by screw thread usually and axially fasten acting force; Yet some characteristics occasion not only need axially fasten; Also need produce pressure holding locking radially simultaneously, for example application number is that 99106744.4 the disclosed hidden type pressure tester of one Chinese patent application promptly is like this.The sensing of this type of tire pressure detecting device and wireless transmission circuit all are fixed in the doughnut, by securing member and valve organically combine and be one.In order to guarantee under state is jolted in rotation, pressure sensing and wireless transmission circuit can steady operations, are fixed on the inboard pick-up unit of wheel hub by the valve securing member and not only hope and can axially fasten, and also hope possibly stablize to be located to be supported on the wheel hub bottom surface.Yet; Because the structure of existing valve securing member does not have radially chip hold down; Install even therefore tire pressure detecting device is pressed close to the wheel hub bottom surface, also can't guarantee more can't keep after jolting repeatedly, still obtaining wheel hub bottom surface secure support axially fastening the back by wheel hub bottom surface secure support.
Along with built-in tire pressure detecting device is about to by national Specification will be the indispensable MP of vehicle, and it reliably installs and fixes and becomes day by day urgent need and deal with problems.
Summary of the invention
The objective of the invention is to: propose a kind ofly when axially producing fastening force, can also produce the radially radially pressure holding securing member of pressure holding locking action, propose to adopt the tire pressure detecting device of this securing member simultaneously.
In order to reach above purpose, radially pressure holding securing member of the present invention has the spiro rod section that matches with nut and the diameter termination greater than the screw rod external diameter, and the screw rod center of circle is departed from the center of circle of said termination; The minor increment of the said screw rod center of circle to pressure holding face radially is greater than the screw rod radius, the eccentric throw sum that departs from the screw rod center of circle less than radius and its center of circle of said termination.
Casket body that adopts the tire pressure detecting device of pressure holding securing member radially to comprise to settle pressure sensing and wireless transmission circuit and the valve that is integrated with pressure holding securing member radially; Said casket body has respectively and wheel hub inboard sidewall and the base relative with the interior end; Said sidewall has the valve perforation relative with the wheel hub air nozzle hole, has radially pressure holding face on the said base; Said valve has the spiro rod section that matches with nut and the diameter termination greater than the screw rod external diameter, and the screw rod center of circle is departed from the center of circle of said termination; The minor increment of the said screw rod center of circle to pressure holding face radially is greater than the screw rod radius, the eccentric throw sum that departs from the screw rod center of circle less than radius and its center of circle of said termination.
Like this; Thereby when with nut driving the present invention radially the spiro rod section of pressure holding securing member play to axially fasten and do the time spent; Because the rubbing action between the screw thread pair; Screw rod will produce and nut rotation trend in the same way, rotate thereby drive eccentric termination, until termination outer round surface and radially pressure holding face conflict.This moment is when continuing to screw nut and since the eccentric end epicranium radially pressure holding face prop up, so spiro rod section need not to be provided with chocking construction or takes chocking construction, will can not rotate with nut again, makes fastening easy to operate.What is more important, along with nut continue screw, eccentric termination will produce chip hold down power to pressure holding face radially, thus when axially fastening, the required radially chip hold down of generation naturally.For the tire pressure detecting device that adopts pressure holding securing member radially, when axially fastening, be pressed towards the end in the wheel hub, thereby reliably be placed in the wheel hub steadily by valve securing member and wheel hub inboard.
The present invention further improves, and said termination and the lift angle at pressure holding face pressure holding point place (being the angle of two lines in pressure holding point to the center of circle, termination and the screw rod center of circle) radially are less than angle of friction.By self-locking action, make more secure of radially pressure holding like this, it is loosening effectively to prevent to jolt.
Compare with the securing member of existing band eccentric structure, because the action effect of goal of the invention and generation is all inequality, so the present invention has significant substantive distinguishing features and outstanding progress.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is that the A of Fig. 1 is to the structure for amplifying synoptic diagram.
Embodiment
Embodiment one
Present embodiment is to adopt the radially tire pressure detecting device of pressure holding securing member (TPMS), and its basic structure is as shown in Figure 1, comprises the casket body 1 of positioned inside pressure sensing and wireless transmission circuit and the valve 2 that is integrated with pressure holding securing member radially.Casket body 1 has respectively and wheel hub 3 inboard sidewall 1-1 and the base 1-2s relative with the interior end.Sidewall 1-1 has the valve perforation relative with the wheel hub air nozzle hole.
Can find out to have notch at the bottom of the circular arc on the casket body 1 in conjunction with Fig. 2, the inner arc surface that notch is positioned on the base 1-2 at the bottom of this circular arc is pressure holding face radially.Valve 2 has the spiro rod section 2-1 that matches with nut 4 and the diameter termination 2-2 greater than the screw rod external diameter, and its center is an air-filled pore.The center of circle O of termination 2-2 departs from screw rod center of circle O ' with eccentric distance e.Screw rod center of circle O ' the extremely radially minor increment 1 of pressure holding face departs from the eccentric throw sum R+e in the screw rod center of circle greater than the screw rod radius r less than termination radius and its center of circle.
Termination 2-2 and the lift angle at the pressure holding point B place of pressure holding face radially (be pressure holding point B to the angle of two lines of the center of circle, termination O and screw rod center of circle O ' a) less than the angle of friction here.
The Fig. 2 of present dynasty CW is screwed in nut 4 the spiro rod section 2-1 of the valve 2 that is integrated with pressure holding securing member radially; Thereby when it is fastened on wheel hub 3 inboard through packing washer 5 axial seals; Because the rubbing action between the screw thread pair; Spiro rod section 2-1 will produce and nut 4 trend that turns clockwise in the same way, rotate thereby drive eccentric termination 2-2, until termination 2-2 outer round surface and radially pressure holding face conflict.This moment is when continuing to screw nut 4; Because screw rod center of circle O ' departs from the eccentric throw sum R+e in the screw rod center of circle to the minor increment 1 of pressure holding face radially less than termination radius and its center of circle, therefore eccentric termination 2-2 is propped up at B point by pressure holding face radially, and spiro rod section 2-1 is with not rotating with nut 4 again; Can under the situation of not transfer of valve, continue fastening nut; Make fastening easy to operately, and need not, be provided with in the termination and be stuck in the hexagon head in the hexagon head counterbore as prior art; Or, prevent that it is difficult to fastening nut because of rotating with nut by instrument braking valve.What is more important, along with nut 4 continue screw, eccentric termination 2-2 will produce chip hold down power to pressure holding face radially; Thereby when axially fastening; Naturally produce required radially chip hold down, and because of the lift angle at pressure holding point B place less than angle of friction, will combine with the self-locking action of screw thread; When tire pressure detecting device and wheel hub inboard are axially fastened; Reliably supported by the end in the wheel hub steadily, thereby help pick-up unit in vehicle high-speed travel process, can not influence the job stability of internal circuit because of the severe jolt vibration.
This shows that the ingenious eccentric structure that utilizes of the tire pressure detecting device of present embodiment is realized at the same time axially fastening, under the prerequisite of radial compaction, also avoided being provided with brake structure or adopted the braking instrument, therefore very rationally.
Except that the foregoing description, the present invention can also have other embodiments.For example, except being applied to TPMS, can also be applied in other has the similar industry that compresses demand; Tire pressure detecting device can have various variations, and institute's distribution mouth can change because of vehicle is different; Or the like.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of requirement of the present invention.
Claims (4)
1. tire pressure detecting device is characterized in that: comprise the casket body of settling pressure sensing and wireless transmission circuit and the valve that is integrated with pressure holding securing member radially; Said casket body has respectively and wheel hub inboard sidewall and the base relative with the interior end, and said sidewall has the valve relative with the wheel hub air nozzle hole bores a hole, and has radially pressure holding face on the said base; Said valve has the spiro rod section that matches with nut and the diameter termination greater than the screw rod external diameter, and the screw rod center of circle is departed from the center of circle of said termination; The minor increment of the said screw rod center of circle to pressure holding face radially is greater than the screw rod radius, the eccentric throw sum that departs from the screw rod center of circle less than radius and its center of circle of said termination.
2. tire pressure detecting device according to claim 1 is characterized in that: have notch at the bottom of the circular arc on the said casket body, the inner arc surface that notch is positioned on the base at the bottom of the said circular arc is pressure holding face radially.
3. tire pressure detecting device according to claim 2 is characterized in that: the lift angle at said termination and pressure holding face pressure holding point place radially is less than angle of friction.
4. tire pressure detecting device according to claim 3 is characterized in that: said nut driving is at the spiro rod section of the valve that is integrated with pressure holding securing member radially, and is fastened on the inboard of wheel hub through packing washer axial seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110038836 CN102175383B (en) | 2011-02-16 | 2011-02-16 | Radial holding fastening piece and tire pressure detection device using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110038836 CN102175383B (en) | 2011-02-16 | 2011-02-16 | Radial holding fastening piece and tire pressure detection device using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102175383A CN102175383A (en) | 2011-09-07 |
| CN102175383B true CN102175383B (en) | 2012-12-12 |
Family
ID=44518592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110038836 Expired - Fee Related CN102175383B (en) | 2011-02-16 | 2011-02-16 | Radial holding fastening piece and tire pressure detection device using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102175383B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2709416B2 (en) * | 1990-08-21 | 1998-02-04 | 株式会社インフォム | Positioning holding device |
| CN2312359Y (en) * | 1997-09-16 | 1999-03-31 | 王学禹 | Special secure screw bolt |
| DE19915913C2 (en) * | 1999-04-08 | 2001-06-07 | Mey Klaus Peter | Variable stroke fastener |
| CN2658458Y (en) * | 2003-11-20 | 2004-11-24 | 大庆石油管理局 | Eccentric anti-theft bolt |
-
2011
- 2011-02-16 CN CN 201110038836 patent/CN102175383B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102175383A (en) | 2011-09-07 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN XINGBAN CONSTRUCTION ENGINEERING CO., LTD Free format text: FORMER OWNER: YIN SHIRUI Effective date: 20120917 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Xueyun Inventor before: Yin Shirui |
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| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210000 NANJING, JIANGSU PROVINCE TO: SHENZHEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: YIN SHIRUI TO: LUO XUEYUN |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20120917 Address after: Shenzhen City, Guangdong Province, Futian District Shennan Road No. 7006 Fuchun Eastern Mansion, room 2103-05 Applicant after: Shenzhen Xingban Construction Engineering Co., Ltd. Address before: 210000, Jiangsu Province, Nanjing City, Cui Island flower garden, room 1, 601 court Applicant before: Yin Shirui |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140216 |