CN2072617U - Anti-stealing threaded bolt - Google Patents
Anti-stealing threaded bolt Download PDFInfo
- Publication number
- CN2072617U CN2072617U CN 90216580 CN90216580U CN2072617U CN 2072617 U CN2072617 U CN 2072617U CN 90216580 CN90216580 CN 90216580 CN 90216580 U CN90216580 U CN 90216580U CN 2072617 U CN2072617 U CN 2072617U
- Authority
- CN
- China
- Prior art keywords
- expanding
- threaded bolt
- stealing
- bolt
- 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.)
- Withdrawn
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to a fastening threaded bolt, particularly a disposable anti-stealing threaded bolt. The utility model is characterized in that the lateral plane of the thread end of a screw rod is provided with an expanding hole 3 on the basis of general threaded bolt, and the expanding hole 3 is provided with an expanding slot 4 and is provided with a conical expanding key 5. The utility model has the advantages of good anti-stealing performance, easy production, easy use, etc.
Description
The utility model relates to a kind of fastening bolt of using, particularly a kind of disposable Bolt against theft.
At present the bolt that comparatively generally adopts is to put screw thread on the isometrical screw rod to add a nut that is complementary with it again and form, and this kind bolton is loosening or come off under vibrations and other external force effect easily after well, thereby loses tightly because of effect or cause contingency.For preventing that nut is loosening and come off that employing hole of horizontal brill on the screw rod of nut outer end is arranged at present, the method for inserting pin or tinsel is to prevent screw cap-falling or loosening method.Employing is also arranged with fastening good screw rod, nut weldering knot method together, become flexible, come off and stolen to prevent nut.More than these methods still exist different pluses and minuses, major defect is that the former theft-proof is not so good, latter's constructional difficulties is used inconvenience, and again can not be further fastening.
The purpose of this utility model provides disposable, theft-proof preferably, adeciduate Bolt against theft.
The technical characteristics of this Bolt against theft is to be provided with more than one expanding hole on the distolateral plane of screw rod screw thread of general bolt, crosses the expanding hole and opens the expanding groove of one or more, and the degree of depth of the expanding in expanding hole is advisable equating, and has taper expanding key.During use, with Bolt against theft and nut packages and screw fully after, knock in the expanding hole with the taper expanding key got ready, the expanding groove is opened, increase the external diameter of bolt head, nut can't be unloaded with wrench, thereby it is stolen that connector element is difficult for, and also can prevent screw cap-falling.
Adopt this Bolt against theft, on it is applicable to that often the equipment of dismounting does not connect, on facilities such as railway, bridge, water conservancy, electric power.Be not suitable for the occasion of frequent dismounting.
Fig. 1 is the schematic representation of this bolt.Also can be used as embodiment's schematic representation of the present utility model (two grooves, one cellular type).Narrated below in conjunction with accompanying drawing.
The screw rod of this bolt (1), nut (2) is characterized in that having expanding hole (3) on the distolateral plane of screw rod screw thread, cross expanding hole (3) and have expanding groove (4), and have taper expanding key (5), (6), (7) and be connector element.This embodiment has an expanding hole (3) and two expanding grooves (4), promptly is called two grooves, one cellular type.
This Bolt against theft has preferably theft-proof, also can prevent bolt falling, makes the advantages such as simple, easy to use.
Claims (1)
1, a kind of Bolt against theft that screw rod and nut are arranged is characterized in that having the expanding hole on the distolateral plane of screw rod screw thread, crosses the expanding hole and has the expanding groove, and have taper expanding key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216580 CN2072617U (en) | 1990-07-17 | 1990-07-17 | Anti-stealing threaded bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90216580 CN2072617U (en) | 1990-07-17 | 1990-07-17 | Anti-stealing threaded bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2072617U true CN2072617U (en) | 1991-03-06 |
Family
ID=4895708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90216580 Withdrawn CN2072617U (en) | 1990-07-17 | 1990-07-17 | Anti-stealing threaded bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2072617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242756A (en) * | 2011-05-27 | 2011-11-16 | 齐齐哈尔轨道交通装备有限责任公司 | Fastening device |
-
1990
- 1990-07-17 CN CN 90216580 patent/CN2072617U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242756A (en) * | 2011-05-27 | 2011-11-16 | 齐齐哈尔轨道交通装备有限责任公司 | Fastening device |
| CN102242756B (en) * | 2011-05-27 | 2013-04-24 | 齐齐哈尔轨道交通装备有限责任公司 | Fastening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |