CN101235842A - Theft-proof bolt and nut and its tool - Google Patents
Theft-proof bolt and nut and its tool Download PDFInfo
- Publication number
- CN101235842A CN101235842A CNA2008100493234A CN200810049323A CN101235842A CN 101235842 A CN101235842 A CN 101235842A CN A2008100493234 A CNA2008100493234 A CN A2008100493234A CN 200810049323 A CN200810049323 A CN 200810049323A CN 101235842 A CN101235842 A CN 101235842A
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- China
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- nut
- bolt
- bolt head
- tower
- card platform
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses a theft proof anti-unloading bolt nut and a tool, which comprises a tower bolt head and a tower nut, wherein a circle of zigzag card platform which is evenly distributed is arranged on an inclined plane of the tower bolt head which is lower or equal to a small head end surface of the bolt head, and the corresponding zigzag card platform is arranged on a tower inner wall of a wrench which is engaged with the bolt head. The circle of zigzag card platform which is evenly distributed is arranged on an inclined plane of the tower bolt head which is lower or equal to a small head end surface of the bolt head, and the corresponding zigzag card platform is arranged on the tower inner wall of the wrench which is engaged with the bolt head. The theft proof anti-unloading bolt nut not only has easy operation and excellent theft proof performance, but also has high card platform strength, when installing, the wrench is not separate from the bolt and the nut, the winding speed is rapid, and thereby playing the role of rapidly wrenching. The theft proof anti-unloading bolt nut is capable of being disassembled by a special withdrawal tool, and the maintenance cost is reduced. The bolt and the nut of the invention are capable of being respectively signally used engaging to other bolts and nuts, and are suitable for highway barriers, power supply towers and railway rails.
Description
Technical field:
The present invention relates to fastening piece and special tool, particularly a kind of antitheft bolt, nut and instrument thereof of unloading that is applicable to open-air steelwork component connection use and has anti-theft feature.
Background technique:
TV station and various newspaper medium are constantly reported at present, and open-air freeway guardrail, power supply iron tower, rail facility are stolen by the lawless person and unloaded, and cause tremendous loss for the country and people's lives and properties.For solving this difficult problem, I have formerly applied for four Chinese patents, part is connecting suddenly, is using on the Jingzhu express way highway, tentatively obtained gratifying effect, in the ZL2007200893717 patent, be that bolt head, nut and the occlusal surface that screws spanner all are designed to isosceles trapezoid, correspondence is provided with at least two zigzag fashion Ka Tai on the little end surface of each turriform parts.This structure can realize easy processing, and is quick for installation, can not dismantle, but the shortcoming that exists is because of the zigzag fashion Ka Tai that meshes is located on the small end face, easily comes off when screwing, and not only need increase height but also reduce nut strength and service rating.
Summary of the invention:
The purpose of this invention is to provide a kind of not only easy processing, quick for installation, theftproof performance good, and intensity height uses demountable antitheft bolt, nut and the instrument thereof of unloading of special tool.
Technological scheme of the present invention is finished as follows, it includes the bolt of turriform bolt head, it is characterized in that: on the inclined-plane of turriform bolt head, be less than or equal to the little end surface of bolt head and be provided with uniform zigzag fashion Ka Tai of a week, on the spanner turriform inwall that cooperates with bolt head, be provided with respective saw teeth shape Ka Tai.Antitheft removing nut and instrument thereof, it includes the turriform nut, it is characterized in that: on the inclined-plane of turriform nut, be less than or equal to the little end surface of nut and be provided with uniform zigzag fashion Ka Tai of a week, on the spanner turriform inwall that cooperates with nut, be provided with respective saw teeth shape Ka Tai.The present invention not only easy processing, theftproof performance is good, and card platform intensity height, spanner does not break away from screw bolt and nut during installation, it is fast to screw speed, play the effect of speeder wrench, use special-purpose extracting tool to dismantle, reduced maintenance cost, and bolt of the present invention, nut can cooperate other nut, bolt to use separately respectively, are particularly suitable for using on freeway guardrail, power supply iron tower and track.
Description of drawings:
Accompanying drawing is a structural representation of the present invention.
Embodiment:
Describe embodiment in conjunction with the accompanying drawings in detail.The present invention is to my improvement at the patent ZL2007200893717 of first to file, mainly be on the inclined-plane of the turriform bolt head 4 of bolt 6 and turriform nut 7, to be less than or equal to bolt head and the little end surface of nut is provided with uniform zigzag fashion card platform 5 of a week, on two spanners, the 2 turriform inwalls that cooperate with bolt head and nut, be provided with respective saw teeth shape card platform 3.The present invention adopts zigzag fashion Ka Tai is set on the inclined-plane, spanner is cooperated with bolt head and nut, and can only be clockwise afterburning rotation tightens, during afterburning counterclockwise dismounting then both sides mesh Ka Tai and be separated, can not be used for dismantling so setting tool can only be used for fastening, have theftproof performance preferably.Simultaneously because of matching with Ka Tai on nut, the bolt head conical surface with the zigzag fashion Ka Tai on the spanner turriform inwall, so spanner need not break away from workpiece when fastening, only need pressing handle 1 constantly, rotation tightens and turns round disengagement and can finish the task of tightening fast, has the effect of speeder wrench.Again because of adopting assembly wrench and the extracting tool can not be general, can be according to customer requirements, design has special extracting tool in addition when safeguarding, not to social public offering, only, can effectively prevent to steal and unload the reduction maintenance cost, in addition to the applying unit supply, bolt of the present invention, nut can cooperate other nut, bolt to use separately respectively, and stronger versatility is arranged.
Claims (2)
1, antitheft bolt and nut and the instrument thereof of unloading, it includes the bolt of turriform bolt head, it is characterized in that: on the inclined-plane of turriform bolt head, be less than or equal to the little end surface of bolt head and be provided with uniform zigzag fashion Ka Tai of a week, on the spanner turriform inwall that cooperates with bolt head, be provided with respective saw teeth shape Ka Tai.
2, antitheft bolt and nut and the instrument thereof of unloading, it includes the turriform nut, it is characterized in that: on the inclined-plane of turriform nut, be less than or equal to the little end surface of nut and be provided with uniform zigzag fashion Ka Tai of a week, on the spanner turriform inwall that cooperates with nut, be provided with respective saw teeth shape Ka Tai.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100493234A CN101235842A (en) | 2008-02-29 | 2008-02-29 | Theft-proof bolt and nut and its tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100493234A CN101235842A (en) | 2008-02-29 | 2008-02-29 | Theft-proof bolt and nut and its tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101235842A true CN101235842A (en) | 2008-08-06 |
Family
ID=39919681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100493234A Pending CN101235842A (en) | 2008-02-29 | 2008-02-29 | Theft-proof bolt and nut and its tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101235842A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297192A (en) * | 2011-08-05 | 2011-12-28 | 徐尚仁 | Heat-treatment quenching hardened anti-theft nut with top barrier at top |
| CN104989718A (en) * | 2015-07-23 | 2015-10-21 | 李一达 | Dismountable antitheft nut combination part and mounting and dismounting tool thereof |
| CN110065887A (en) * | 2019-05-10 | 2019-07-30 | 中建八局第四建设有限公司 | Space net rack steel construction bidirectional rotation lifting construction method |
-
2008
- 2008-02-29 CN CNA2008100493234A patent/CN101235842A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297192A (en) * | 2011-08-05 | 2011-12-28 | 徐尚仁 | Heat-treatment quenching hardened anti-theft nut with top barrier at top |
| CN102297192B (en) * | 2011-08-05 | 2012-11-07 | 徐尚仁 | Heat-treatment quenching hardened anti-theft nut with top barrier at top |
| CN104989718A (en) * | 2015-07-23 | 2015-10-21 | 李一达 | Dismountable antitheft nut combination part and mounting and dismounting tool thereof |
| CN110065887A (en) * | 2019-05-10 | 2019-07-30 | 中建八局第四建设有限公司 | Space net rack steel construction bidirectional rotation lifting construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080806 |