CN202251364U - Anti-theft bolt subassembly - Google Patents
Anti-theft bolt subassembly Download PDFInfo
- Publication number
- CN202251364U CN202251364U CN2011203181621U CN201120318162U CN202251364U CN 202251364 U CN202251364 U CN 202251364U CN 2011203181621 U CN2011203181621 U CN 2011203181621U CN 201120318162 U CN201120318162 U CN 201120318162U CN 202251364 U CN202251364 U CN 202251364U
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- CN
- China
- Prior art keywords
- bolt
- groove
- theft
- head
- expansion
- 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 discloses an anti-theft bolt subassembly, comprising a bolt and an expansion screw. The screw end part of the bolt is axially provided with a step-shaped circular groove with a small diameter at the inner side and a large diameter at the outer side, wherein an inner side groove is provided with an internal thread, and the side wall of the outer side groove is provided with axial slits; a screw rod of the expansion screw is threaded to the inner side groove; and the external diameter of the head of the expansion bolt is more than the external diameter of the bolt. Furthermore, the head of the expansion screw is step-shaped and is provided with an internal hexagonal concave hole. The axial slits of the outer side groove are arranged at equal intervals. The side wall of the outer side groove is 1.5 mm thick. When the anti-theft bolt subassembly is in use, the side wall of the outer side groove of the bolt can be turned outwards by the head of the expansion bolt after the expansion bolt is connected with the inner side groove of the bolt, so as to prevent a nut from releasing from the bolt. Furthermore, the anti-theft function is realized to a certain extend.
Description
Technical field
The utility model relates to a kind of bolt, particularly a kind ofly can effectively realize anti-loosening, the anti-bolt assembly of stealing.
Background technique
Bolt is widely used in every field as fastening piece, but in use also there is following problem in bolt: when used in the environment of vibration when screw bolt and nut (1), it is loosening that long-term vibration can make nut produce, and causes nut to come off voluntarily and cause the accident.Especially when bolt used in the machinery of operation, nut loosening can lead to peril.(2) at electric power and communication line with iron tower is open-air when using owing to there are not personnel to nurse, many lawless people are utilized simple tool can screw bolt and nut be dismantled and are stolen, and cause unnecessary artificial peril.
Become flexible, come off and stolen for solving screw bolt and nut, the employing that has is loosened on nut and the nut and is established jackscrew, owing to still do not have loose or dislocation and stolen hidden danger less than directly bolt being rivetted.
The model utility content
The utility model technical problem to be solved provides a kind of anti-theft bolt component, and a ccontaining swell fixture in the groove that the bolt end is provided with has been realized the expansion of bolt end, can prevent that nut from getting loose from bolt, and can effectively realize antitheft.
For solving the problems of the technologies described above, the technological scheme that the utility model is taked is a kind of anti-theft bolt component; Comprise bolt and swell fixture; The screw rod end of said bolt has the big stepped circular groove of the little outside diameter of inside diameter vertically, and wherein inboard groove has internal thread, and outside recess sidewall has axial slits; The screw rod of said swell fixture is threaded with said inboard groove, and the head OD of swell fixture is greater than the external diameter of said bolt.
Further, the head of said swell fixture is trapezoidal and has interior hexagonal shrinkage pool.The slit equidistance of said outside groove is offered.Said outside recess sidewall wall thickness is 1.5mm.
The beneficial effect that the utility model can reach is; When the utility model used, swell fixture was with after the inboard groove of bolt is connected, and the head of swell fixture can turn up the sidewall expansion of groove outside the bolt; Prevent that nut from getting loose from bolt, and realized antitheft to a certain extent.
Description of drawings
Fig. 1 is the anti-theft bolt component combination schematic representation according to the utility model;
Fig. 2 is the anti-theft bolt component decomposing schematic representation according to the utility model;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 be among Fig. 2 B to schematic representation.
Embodiment
Consult Fig. 1-Fig. 3, the utility model anti-theft bolt component comprises bolt 10 and swell fixture 20.Wherein the end of the screw rod 11 of bolt 10 in axial direction offers cascade groove; The inboard groove 12 of cascade groove is littler than the internal diameter of outside groove 13; Wherein sidewall 14 equidistance of outside groove 13 are provided with 6 slits 15; Sidewall 14 wall thickness are 1.5mm, and wherein inboard groove 12 has internal thread.Swell fixture 20 comprises screw rod 21 and trapezoidal head 22, and trapezoidal head 22 has interior hexagonal shrinkage pool 23.Screw rod 21 can be threaded with the inboard groove 12 of bolt 10.The maximum outside diameter of the trapezoidal head of said swell fixture is slightly larger than the external diameter of bolt 10.
In use; At first that bolt 10 and nut (not shown) is fastening, then swell fixture 20 is screwed in the inboard groove 12 of bolt, because the external diameter of swell fixture 20 is big slightly than bolt; Along with the screw-in of swell fixture 20 puts in place; The trapezoidal head 22 of swell fixture 20 can expand the sidewall 14 of bolt and turn up, and like this, this bolt assembly connects to be accomplished.By knowing among the figure, because the expansion of sidewall 14, nut does not have the risk that comes off, even lawless people is unclamped swell fixture, because nut can not directly be backed out from the outer wall that expands, has increased the theft difficulty, can reach certain antitheft effect.
Claims (4)
1. an anti-theft bolt component comprises bolt and swell fixture, it is characterized in that,
The screw rod end of said bolt has the big stepped circular groove of the little outside diameter of inside diameter vertically, and wherein inboard groove has internal thread, and outside recess sidewall has axial slits,
The screw rod of said swell fixture is threaded with said inboard groove, and the head OD of swell fixture is greater than the external diameter of said bolt.
2. anti-theft bolt component according to claim 1 is characterized in that, the head of said swell fixture is trapezoidal and has interior hexagonal shrinkage pool.
3. anti-theft bolt component according to claim 1 is characterized in that, the slit equidistance of said outside groove is offered.
4. anti-theft bolt component according to claim 1 is characterized in that, said outside recess sidewall wall thickness is 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203181621U CN202251364U (en) | 2011-08-29 | 2011-08-29 | Anti-theft bolt subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203181621U CN202251364U (en) | 2011-08-29 | 2011-08-29 | Anti-theft bolt subassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251364U true CN202251364U (en) | 2012-05-30 |
Family
ID=46112612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203181621U Expired - Fee Related CN202251364U (en) | 2011-08-29 | 2011-08-29 | Anti-theft bolt subassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251364U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958579A (en) * | 2017-04-18 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | A kind of check bolt |
| CN108223545A (en) * | 2018-02-12 | 2018-06-29 | 林平 | Locking Anti-off bolt nut assembly |
| CN108386440A (en) * | 2018-04-20 | 2018-08-10 | 林平 | Locking Anti-off bolt nut assembly |
| CN110985513A (en) * | 2019-11-22 | 2020-04-10 | 河南航天精工制造有限公司 | Check bolt and check bolt assembly |
-
2011
- 2011-08-29 CN CN2011203181621U patent/CN202251364U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958579A (en) * | 2017-04-18 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | A kind of check bolt |
| CN108223545A (en) * | 2018-02-12 | 2018-06-29 | 林平 | Locking Anti-off bolt nut assembly |
| CN108386440A (en) * | 2018-04-20 | 2018-08-10 | 林平 | Locking Anti-off bolt nut assembly |
| CN110985513A (en) * | 2019-11-22 | 2020-04-10 | 河南航天精工制造有限公司 | Check bolt and check bolt assembly |
| CN110985513B (en) * | 2019-11-22 | 2021-08-27 | 河南航天精工制造有限公司 | Check bolt and check bolt assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120530 Termination date: 20130829 |