CN2859055Y - Disposable anti-theft bolt - Google Patents
Disposable anti-theft bolt Download PDFInfo
- Publication number
- CN2859055Y CN2859055Y CN 200520010322 CN200520010322U CN2859055Y CN 2859055 Y CN2859055 Y CN 2859055Y CN 200520010322 CN200520010322 CN 200520010322 CN 200520010322 U CN200520010322 U CN 200520010322U CN 2859055 Y CN2859055 Y CN 2859055Y
- Authority
- CN
- China
- Prior art keywords
- screw rod
- external diameter
- neck
- annular boss
- 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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- Clamps And Clips (AREA)
Abstract
The present utility model provides an one-time theftproof bolt. It includes a screw rod (1) and a screw cap (2), on said screw rod (1) the threads are set, an annular boss (3) and a neck part (4) are set orderly between said screw rod (1) and said screw cap (2). The external diameter of the annular boss (3) is larger than that of the screw rod (1), the external diameter of said neck part (4) is smaller than that of the screw rod (1), and the neck part (4) is the taper with little front end, the cross-section of the neck part (4) is circular or regular polygon. The present utility model can play a part in the theftproof and has the advantages of convenient use and simple structure, since only the screw rod (1) and the annular boss (3) work after being fastened.
Description
Technical field
The utility model belongs to technical field of fastening, specifically, relates to a kind of bolt
Background technique
Bolt is to use a kind of very widely fastening piece, is made of threaded screw rod and nut, is used for the two or more parts of fastening connection, generally is to be used separately or with nut.In the ordinary course of things, people have dual needs fastening and dismounting to the same group of bolt that is used on the product, but people consider from antitheft angle sometimes, wishing that bolt is in a single day fastening just can not be removed after getting on, promptly same group of bolt had only fastening disposable needs, as the assembling and the installation of exposed lock.Because existing bolt can not be accomplished this point, so people have to adopt other more complicated connecting mode in this case usually.
The model utility content
The purpose of this utility model provides after a kind of fastening connection the disposable anti-theft bolt of using that can not dismantle with conventional instrument.
For this reason, the disposable anti-theft bolt of using described in the utility model comprises screw rod and nut, screw thread is arranged on the screw rod, be provided with an annular boss and a neck between screw rod and the nut successively, the external diameter of annular boss is greater than the screw rod external diameter, and the external diameter of neck is less than the external diameter of screw rod.
In the utility model since the external diameter of neck less than the external diameter of screw rod, and between neck and the screw rod annular boss of external diameter greater than screw rod, when carrying out fastening connection with spanner or other instrument drive nut, connection between the part follow-up continuous pulling tool that puts in place, the moment of torsion that is added in the neck place increases to when effectively using moment of torsion, will rupture in the joint of neck and annular boss, annular boss is stayed on the screw rod, conventional tool can't disassemble it by annular boss, thereby reaches fastening and antitheft purpose.
The beneficial effects of the utility model are: can effectively play fastening and the non-removable anti-theft effect, and easy to use, simple in structure.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, the disposable anti-theft bolt of using described in the utility model has screw rod 1 and nut 2, on the screw rod 1 screw thread is arranged, be provided with an annular boss 3 and a neck 4 between screw rod 1 and the nut 2 successively, the external diameter of annular boss 3 is greater than screw rod 1 external diameter, and the external diameter of neck 4 is less than the external diameter of screw rod 1.Neck 4 is the little taper of front end, and the cross section of neck 4 can be circular, also can be regular polygon.
The utility model is applicable to that for once the product assembling of the fastening needs of property connects, difference according to use occasion, size to screw rod 1, annular boss 3, neck 4 and nut 2 designs, just can obtain having the different bolts that effectively use moment of torsion, to form various specification, satisfy and use needs.When carrying out fastening connection with spanner or other instrument drive nut 2, connection between the part follow-up continuous pulling tool that puts in place, the moment of torsion that is added in neck 4 places increases to when effectively using moment of torsion, because the external diameter minimum of neck 4 and annular boss 3 joints, therefore will rupture in this joint, annular boss 3 is stayed on the screw rod 1 and is close to the surface of product parts, adopts conventional tool and conventional method they can't be disassembled at all.
Claims (2)
1, a kind of disposable anti-theft bolt of using, comprise screw rod (1) and nut (2), screw rod has screw thread on (1), it is characterized in that: be provided with an annular boss (3) and a neck (4) between screw rod (1) and the nut (2) successively, the external diameter of annular boss (3) is greater than screw rod (1) external diameter, and the external diameter of neck (4) is less than the external diameter of screw rod (1).
2, the disposable anti-theft bolt of using according to claim 1 is characterized in that: described neck (4) is the little taper of front end, and the cross section of neck (4) is circle or regular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010322 CN2859055Y (en) | 2005-11-17 | 2005-11-17 | Disposable anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010322 CN2859055Y (en) | 2005-11-17 | 2005-11-17 | Disposable anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859055Y true CN2859055Y (en) | 2007-01-17 |
Family
ID=37611914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010322 Expired - Fee Related CN2859055Y (en) | 2005-11-17 | 2005-11-17 | Disposable anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859055Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192228A (en) * | 2010-03-16 | 2011-09-21 | 富瑞精密组件（昆山）有限公司 | Fixed element and fixed device and electric device using fixed element |
| CN101709735B (en) * | 2009-11-05 | 2012-07-04 | 蔡灵明 | Anti-counterfeiting expandable nail |
| CN103032442A (en) * | 2013-01-21 | 2013-04-10 | 张家港固耐特围栏***有限公司 | Bolt for mounting of rail |
| CN108953357A (en) * | 2018-07-27 | 2018-12-07 | 国家电网有限公司 | Anti-theft bolt and dismantling spanner |
| CN109099046A (en) * | 2018-11-07 | 2018-12-28 | 海盐华悦紧固件有限公司 | A kind of railroad track anti-theft bolt |
-
2005
- 2005-11-17 CN CN 200520010322 patent/CN2859055Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709735B (en) * | 2009-11-05 | 2012-07-04 | 蔡灵明 | Anti-counterfeiting expandable nail |
| CN102192228A (en) * | 2010-03-16 | 2011-09-21 | 富瑞精密组件（昆山）有限公司 | Fixed element and fixed device and electric device using fixed element |
| CN102192228B (en) * | 2010-03-16 | 2015-07-08 | 富瑞精密组件（昆山）有限公司 | Fixed element and fixed device and electric device using fixed element |
| CN103032442A (en) * | 2013-01-21 | 2013-04-10 | 张家港固耐特围栏***有限公司 | Bolt for mounting of rail |
| CN108953357A (en) * | 2018-07-27 | 2018-12-07 | 国家电网有限公司 | Anti-theft bolt and dismantling spanner |
| CN109099046A (en) * | 2018-11-07 | 2018-12-28 | 海盐华悦紧固件有限公司 | A kind of railroad track anti-theft bolt |
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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 |