CN2168981Y - Self locking bolt - Google Patents
Self locking bolt Download PDFInfo
- Publication number
- CN2168981Y CN2168981Y CN 93229382 CN93229382U CN2168981Y CN 2168981 Y CN2168981 Y CN 2168981Y CN 93229382 CN93229382 CN 93229382 CN 93229382 U CN93229382 U CN 93229382U CN 2168981 Y CN2168981 Y CN 2168981Y
- Authority
- CN
- China
- Prior art keywords
- pin
- screw rod
- screw
- nut
- screw thread
- 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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- Clamps And Clips (AREA)
Abstract
The utility model relates to an improvement of a screw bolt, specifically a self-locking anti-loosing screw bolt. The utility model is characterized in that a pin closure position of a screw rod is composed of a screw rod with a pin and a screw thread pin post and the pin closure position is contained by a thickened screw nut; the screw thread end of the screw rod with a pin is a sector-shaped cylinder pin head removing 3 to 4 screw buckles larger than 180 DEG and smaller than 270 DEG, one end of the screw thread pin post removes a semi cylinder corresponding to the pin head of the screw rod with a pin and the thickness of the screw nut is 1.5 to 2 times thicker than the original screw nut. Compared with the common screw bolt, the utility model needs no additionally installed accessories, such as a spring washer or a stop washer, etc. and has an anti-loosing function.
Description
The utility model relates to the improvement of bolt, but the anti-loosening bolt of specifically a kind of self-locking.
The existing bolt that is made of screw rod and nut does not possess the anti-loosening performance of self-locking, must install spring washer or annexes such as lock washer, cotter pin additional during use, just can play anti-loosening effect.But locking measure such as spring washer, lock washer is under vibrations and height load condition, and anti-loosening property is unreliable; Utilize that cotter pin is anti-loosening will hole on screw rod, install and use inconvenience, also limited its using scope.
The purpose of this utility model is the shortcoming at above-mentioned existence, provides a kind of anti-loosening property reliable, anti-loosening bolt easy to install.
The purpose of this utility model is achieved in that it comprises band pin screw rod, screw thread pin and adds high nut, it is characterized in that band pin screw rod (1) and the pin that screw thread pin (3) constitutes screw rod close the place, contains by adding high nut (2); Band pin screw rod (1) threaded end be remove greater than 180 °, less than 3～4 spiral shell button fan-shaped cylinder pin heads of 270 °, screw thread pin (3) one ends remove the semicylinder corresponding to band pin screw rod (1) pin head, and nut (2) thickness is thick 1.5～2 times of former nut.
The utility model is compared with plain bolt, need not install annexes such as spring washer or lock washer additional, just can play anti-loosening effect; Under various working conditions, anti-loosening performance is reliable equally, and is with its fastening various parts, firmly not loosening, easy to install.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is a threaded columniation structure schematic representation of the present utility model.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is the left view of Fig. 3.
Fig. 6 is the band pin screw-rod structure schematic representation in the utility model.
Fig. 7 is the plan view of Fig. 6.
Fig. 8 is the right elevation of Fig. 6.
Band pin screw rod (1) threaded end pin head is the inequilateral fan-shaped cylinder, and its long limit is crossed the axle center and prolonged 1/10～1/2 of cylinder radius to the right, and ° minor face is 5 °～80 ° with the angle of long limit elongation line.Screw thread pin (3) other end is provided with two vertical holes (4), also can have bar-shaped trough or cross recess.
During use, an end that at first screw thread pin (3) is had vertical hole (4) screws in and adds in the high nut (2), and it gives the pin head pin of staying outer semicircle pin head and band pin screw rod (1) and closes, and screws in together to add in the high nut (2).Because screw thread pin (3) can move axially with band pin screw rod (1), then adjust the axial distance of connection part automatically, the pitch of joint screw thread pin (3) and band pin screw rod (1) is matched, add high nut (2) precession smoothly, up to screwing.Make as external force and to add high nut (2) counterrotating and when loosening, add high nut (2) and can drive screw thread pin (3) angle of backward rotation together, screw thread pin (3) drive has one and moves axially, and makes screw thread pin (3) and band pin screw rod (1) misplace no longer identical in the pitch generation of connection part.So just will add high nut (2) and automatically lock, can not reach the locking purpose of self-locking to loosening direction rotation again.At this moment if again tightening add high nut (2), as long as just can to the compaction direction turn with spanner.Add high nut (2) as unclamping, can screw thread pin (3) be fixed, make it not add high nut (2) with adding high nut (2) rotation, just can unclamping by vertical hole (4).
Claims (2)
1, a kind of self-lock bolt has screw rod and nut, it is characterized in that band pin screw rod (1) and the pin that screw thread pin (3) constitutes screw rod close the place, contains by adding high nut (2); Band pin screw rod (1) threaded end be remove greater than 180 °, less than 3～4 spiral shell button fan-shaped cylinder pin heads of 270 °, screw thread pin (3) one ends remove the semicylinder corresponding to band pin screw rod (1) pin head, nut (2) thickness is thick 1.5～2 times of former nut.
2, according to the described bolt of claim 1, it is characterized in that band pin screw rod (1) threaded end pin head is the inequilateral fan-shaped cylinder, its long limit is crossed the axle center and is prolonged 1/10～1/2 of cylinder radius to the right, and ° minor face is 5 °～80 ° with the angle of long limit elongation line.Screw thread pin (3) other end is provided with two vertical holes (4), also can have bar-shaped trough or cross recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229382 CN2168981Y (en) | 1993-10-06 | 1993-10-06 | Self locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229382 CN2168981Y (en) | 1993-10-06 | 1993-10-06 | Self locking bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2168981Y true CN2168981Y (en) | 1994-06-15 |
Family
ID=33806262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229382 Expired - Fee Related CN2168981Y (en) | 1993-10-06 | 1993-10-06 | Self locking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2168981Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439912A (en) * | 2019-07-15 | 2019-11-12 | 东风商用车有限公司 | A kind of locking flange face bolt |
| WO2024066244A1 (en) * | 2022-09-30 | 2024-04-04 | 致欧家居科技股份有限公司 | Connecting structure of cat furniture, and cat furniture |
-
1993
- 1993-10-06 CN CN 93229382 patent/CN2168981Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439912A (en) * | 2019-07-15 | 2019-11-12 | 东风商用车有限公司 | A kind of locking flange face bolt |
| WO2024066244A1 (en) * | 2022-09-30 | 2024-04-04 | 致欧家居科技股份有限公司 | Connecting structure of cat furniture, and cat furniture |
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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 |