CN203548528U - Novel anti-theft bolt - Google Patents
Novel anti-theft bolt Download PDFInfo
- Publication number
- CN203548528U CN203548528U CN201320740201.6U CN201320740201U CN203548528U CN 203548528 U CN203548528 U CN 203548528U CN 201320740201 U CN201320740201 U CN 201320740201U CN 203548528 U CN203548528 U CN 203548528U
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- China
- Prior art keywords
- bolt head
- bolt
- screw
- thread
- screw rod
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- Expired - Fee Related
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Abstract
The utility model relates to a novel anti-theft bolt. The bolt comprises a bolt head, a screw and a thread screwing part. The bolt head is provided with a concave ring groove in the radial direction to form a neck column, and the neck column divides the bolt head into an upper end cylindrical bolt head and a lower end cylindrical bolt head. The upper end face of the upper end cylindrical bolt head is internally provided with an internal hexagonal hole. The end, far away from the bolt head, of the thread screwing part is provided with a guide polish rod, and the size of the guide polish rod is smaller than the inner tolerance diameter of an outer thread of the thread screwing part. After the bolt is installed in a device, when an internal hexagonal wrench screws the bolt out of the rated torque, the neck column between the upper end cylindrical bolt head and the lower end cylindrical bolt head is screwed broken, the bolt cannot be dismounted from the outer end through general means and tools any more, and the anti-theft purpose is achieved. The bolt is guided and positioned before the bolt and a hole thread are meshed, inclined degree and slant stress can be effectively reduced, and accordingly the probability that the thread hole cannot be used for screwing is reduced.
Description
Technical field
The utility model relates to fastener areas, particularly a kind of Novel anti-theft bolt.
Background technique
Existing conventional bolt and nut fastening piece, for the indispensable strength member connecting between mechanical part and device is fixing, bolt and nut fastening piece uses very convenient, install easily, it is also easy to dismantle, but for the bolt and nut fastening piece being in the Infrastructure in field, it is very important that its Security just seems, as the bolt and nut fastening piece of using in the Infrastructure such as railway, highway bridge, electric power pylon, microwave communication tower.Because it can disassemble easily, therefore, the object of often being stolen or destroying by lawless person, causes the hidden danger being absolutely unsafe or is directly destroyed to these Infrastructure.
Application number is that 201320017427.3 Chinese utility model patent discloses a kind of hex head bolt, comprises bolt head and screw rod, and the end face of described bolt head is arc shaped surface, and the screw rod of described bolt head is fixed with annular shell fragment on face.Although this hex head bolt can be by the distortion of annular shell fragment, make two to be connected and between part, to remain certain tension force, guarantee two connective stabilities that are connected between part, but due to anti-theft device not being set, therefore use the Infrastructure of this bolt often by lawless person, to be stolen or destroy, cause the hidden danger being absolutely unsafe or directly destroyed to these Infrastructure.Simultaneously in fastening operating process, thereby the vertical strength that can not guarantee bolt and tapped hole causes oblique loading or operator to lack experience or is firmly excessive, causes fragile tapped hole stripped thread.
Model utility content
The purpose of this utility model is to provide a kind of Novel anti-theft bolt of simple in structure, easy to operate and good anti-theft effect, this anti-theft bolt makes to carry out guide-localization before bolt and hole threaded engagement, thereby can effectively reduce the probability of inclination and oblique loading minimizing tapped hole stripped thread.
The utility model for the technological scheme that its technical problem of solution adopts is,
A kind of Novel anti-theft bolt, the screw rod that comprise bolt head, extends to form from described bolt head bottom surface downwards and the screw thread being formed in described screw rod outer rim screw portion; It is characterized in that: described bolt head radially offer concave ring groove, form neck post, this neck post is divided into the cylindric bolt head of the cylindric bolt head in upper end and lower end by bolt head; The diameter of described neck post be described screw rod diameter 1/10; In on the upper-end surface of the cylindric bolt head in described upper end, be provided with an inner hexagonal hole; At described screw thread, screw portion and be provided with a guiding polished rod away from one end of bolt head, the size of described guiding polished rod is less than screw thread and screws the externally threaded interior tolerance diameter of portion.
Further, at the screw rod of described bolt head, be fixed with an annular shell fragment on face, the center of described annular shell fragment is towards screw rod direction protuberance, and described screw rod runs through annular shell fragment.
Further, one end that described guiding polished rod screws portion away from screw thread is connected with a Hexagon boss, and the bottom surface of Hexagon boss is provided with screw-driver slot.
Further, described screw-driver slot inner concave shape is formed in the bottom surface of described Hexagon boss.
Compared with prior art, the utility model Novel anti-theft bolt has following advantage:
1, bolt head of the present utility model is radially offering concave ring groove, forms neck post, and this neck post is divided into the cylindric bolt head of the cylindric bolt head in upper end and lower end by bolt head; The diameter of neck post be described screw rod diameter 1/10.After bolt load facility, by inner hexagon spanner, turn the inner hexagonal hole on the cylindric bolt head in upper end, exceed after rated torque, neck post between the cylindric bolt head of the cylindric bolt head in upper end and lower end is twisted into two parts, just again cannot bolt be unloaded from outer end with conventional means and instrument, to reach antitheft object.
2, the utility model screws portion at screw thread and designs one section of guiding polished rod that is less than bolt external thread diameter away from one end of bolt head, guiding polished rod carried out vertically-guided before bolt and tapped hole interlock, guarantee the vertically stressed of bolt, reduced the probability of screw thread stripped thread.
3, the screw rod of bolt head described in the utility model is fixed with annular shell fragment on face, and swell towards screw rod direction at the center of described annular shell fragment.Therefore by this Novel anti-theft bolt, by two, be connected part when fixing soon, the annular elastomeric sector-meeting of the screw rod of its bolt head on face starts to contact a side surface that is connected part, along with further tightening of this Novel anti-theft bolt, annular shell fragment in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Novel anti-theft bolt.
In figure: 1, bolt head, 101, the cylindric bolt head in upper end, 102, neck post, 103, the cylindric bolt head in lower end, 2, screw rod, 3, screw thread screws portion, 4, annular shell fragment, 5, Hexagon boss, 6, inner hexagonal hole, 7, guiding polished rod.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with illustrating and specific embodiment, further set forth the utility model.
Novel anti-theft bolt as shown in Figure 1, the screw rod 2 that comprise bolt head 1, extends to form from described bolt head 1 bottom surface downwards and the screw thread being formed in described screw rod 2 outer rims screw portion 3.
Described bolt head 1 radially offer concave ring groove, form neck post 102, this neck post 102 is divided into the cylindric bolt head 103 of the cylindric bolt head 101 in upper end and lower end by bolt head 1; The diameter of described neck post 102 be described screw rod 2 diameter 1/10; In on the upper-end surface of the cylindric bolt head 101 in described upper end, be provided with an inner hexagonal hole 6.After bolt load facility, by inner hexagon spanner, turn the inner hexagonal hole 6 on the cylindric bolt head 101 in upper end, exceed after rated torque, neck post 102 between the cylindric bolt head 103 of the cylindric bolt head 101 in upper end and lower end is twisted into two parts, just again cannot bolt be unloaded from outer end with conventional means and instrument, to reach antitheft object.
At screw thread, screw portion 3 and be provided with guiding polished rod 7 away from one end of bolt head 1, the size of described guiding polished rod 7 is less than screw thread and screws the externally threaded interior tolerance diameter of portion 3.Guiding polished rod 7 carried out vertically-guided before bolt and tapped hole interlock, had guaranteed the vertically stressed of bolt, reduced the probability of screw thread stripped thread.
At the screw rod 2 of described bolt head 1, be fixed with annular shell fragment 4 on face, the center of described annular shell fragment 4 is towards screw rod 2 direction protuberances, and described screw rod 2 runs through annular shell fragment 4.By this Novel anti-theft bolt, by two, be connected part when fixing soon, the annular shell fragment 4 of the screw rod 2 of its bolt head 1 on face can start to contact a side surface that is connected part, along with further tightening of this Novel anti-theft bolt, annular shell fragment 4 in above-mentioned will start distortion, thereby produce a rebounding force to being connected part, being finally two is connected between part and remains and guarantee two connective stabilities that are connected between part by certain tension force.
Described screw rod 2 bottom surfaces are provided with a Hexagon boss 5, and the bottom surface of Hexagon boss 5 is provided with screw-driver slot.Described screw-driver slot inner concave shape is formed in described Hexagon boss 5 bottom surfaces.By in screw rod 2 bottom surfaces, screw-driver slot being set, simultaneously, in conjunction with original installing/dismounting portion---head, can realize multiple installation and removal mode.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.
The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a Novel anti-theft bolt, the screw rod (2) that comprise bolt head (1), extends to form from described bolt head (1) bottom surface downwards and the screw thread being formed in described screw rod (2) outer rim screw portion (3); It is characterized in that: described bolt head (1) radially offer concave ring groove, form neck post (102), this neck post (102) is divided into the cylindric bolt head of the cylindric bolt head in upper end (101) and lower end (103) by bolt head (1); The diameter of described neck post (102) be described screw rod (2) diameter 1/10; In on the upper-end surface of the cylindric bolt head in described upper end (101), be provided with an inner hexagonal hole (6); At described screw thread, screw portion (3) and be provided with a guiding polished rod (7) away from one end of bolt head (1), the size of described guiding polished rod (7) is less than screw thread and screws the externally threaded interior tolerance diameter of portion (3).
2. Novel anti-theft bolt according to claim 1, it is characterized in that: at the screw rod (2) of described bolt head (1), on face, be fixed with an annular shell fragment (4), the center of described annular shell fragment (4) is towards screw rod (2) direction protuberance, and described screw rod (2) runs through annular shell fragment (4).
3. Novel anti-theft bolt according to claim 1, it is characterized in that: one end that described guiding polished rod (7) screws portion (3) away from screw thread is connected with a Hexagon boss (5), and the bottom surface of Hexagon boss (5) is provided with screw-driver slot.
4. Novel anti-theft bolt according to claim 3, is characterized in that: described screw-driver slot inner concave shape is formed in the bottom surface of described Hexagon boss (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740201.6U CN203548528U (en) | 2013-11-20 | 2013-11-20 | Novel anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320740201.6U CN203548528U (en) | 2013-11-20 | 2013-11-20 | Novel anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548528U true CN203548528U (en) | 2014-04-16 |
Family
ID=50466651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320740201.6U Expired - Fee Related CN203548528U (en) | 2013-11-20 | 2013-11-20 | Novel anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548528U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736696A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | High-pressure plug |
| CN108757685A (en) * | 2018-08-16 | 2018-11-06 | 嘉兴同辉汽配有限公司 | A kind of automotive hub antirust bolt |
| CN108775319A (en) * | 2018-07-09 | 2018-11-09 | 周民华 | A kind of light rail fixing bolt |
| CN110159641A (en) * | 2019-06-13 | 2019-08-23 | 海盐宏诚精工科技有限公司 | A kind of disposable anti-theft screw |
-
2013
- 2013-11-20 CN CN201320740201.6U patent/CN203548528U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736696A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | High-pressure plug |
| CN108775319A (en) * | 2018-07-09 | 2018-11-09 | 周民华 | A kind of light rail fixing bolt |
| CN108775319B (en) * | 2018-07-09 | 2024-01-16 | 周民华 | Light rail fixing bolt |
| CN108757685A (en) * | 2018-08-16 | 2018-11-06 | 嘉兴同辉汽配有限公司 | A kind of automotive hub antirust bolt |
| CN110159641A (en) * | 2019-06-13 | 2019-08-23 | 海盐宏诚精工科技有限公司 | A kind of disposable anti-theft screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |