CN2370207Y - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN2370207Y CN2370207Y CN 99201024 CN99201024U CN2370207Y CN 2370207 Y CN2370207 Y CN 2370207Y CN 99201024 CN99201024 CN 99201024 CN 99201024 U CN99201024 U CN 99201024U CN 2370207 Y CN2370207 Y CN 2370207Y
- Authority
- CN
- China
- Prior art keywords
- screw
- nut
- special
- theft
- screw bolt
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a special screw bolt with an anti-theft performance, comprising a screw and a nut, wherein, a key groove is arranged on the screw bolt of the screw of a standard part by the screw, and a spring and an abnormity slide key are arranged inside the key groove; a key groove of an inclined plane is arranged on the inner side wall of a standard nut by the nut, so that the nut can only be rotated along one direction, namely, can be rotated clockwise, after the abnormity slide key enters the key groove. The designed anti-theft screw bolt is scientific and reasonable. The special screw bolt with an anti-theft performance is characterized in that the nut can only be rotated clockwise after the nut is screwed into the screw. Although the screw and the nut are both standard parts, but the screw and the nut are unable to be dismounted without especial and special-purpose tools. So the special screw bolt with an anti-theft performance is the screw bolt with a strong anti-theft performance. The screws and the nuts, which adopt the structure, can be assembled into the screw bolts with the anti-theft performance of various specifications. The specification is the same as that of a standard hexagonal screw bolt. The special screw bolt with an anti-theft performance is the improvement an anti-theft type substitute for the existing hexagonal screw bolts.
Description
The utility model relates to a kind of bolt, particularly a kind of anti-theft bolt.
Bolt is used already widely as a kind of fastenings.But on the communal facility of some a large amount of use bolt, as bridge, highway, railway guardrail etc., bolt is disassembled, the stolen incident of public property happens occasionally.Yet bolt is applied in as union piece and requires it to have detachability on these facilities again, so that M R.Therefore use can't dismounting with common tool the anti-theft bolt seem extremely important.
The purpose of this utility model is the phenomenon easily destroyed at community installations, that bolt easily is disassembled and a kind of anti-theft bolt is provided.
The anti-theft bolt of the utility model design comprises a screw, a nut; Described screw is provided with spring and leads the shape slide key for a keyway to be set on the screw rod of standard piece screw in keyway; Described nut is for to be provided with an inclined-plane keyway on the standard nut madial wall, so that after special-shaped slide key entered keyway, nut can only promptly turn clockwise along a direction rotation.
The anti-theft bolt of the utility model design, scientific and reasonable, characteristics are can only turn clockwise after nut screws in screw, though screw-nut is standard piece, are to dismantle as no special special tool, thereby are the very strong bolts of a kind of anti-theft; Adopt the screw of this structure, the anti-theft bolt that nut can be formed all size, its specification is identical with standard hex bolts, is that the improvement and the anti-theft of current hex head bolt substitutes.
Further describe the utility model below in conjunction with drawings and Examples.
The structural representation of the screw of the anti-theft bolt that accompanying drawing 1 designs for the utility model.
The structural representation of the nut of the anti-theft bolt that accompanying drawing 2 designs for the utility model.
Wherein label 1 is the nut keyway, and 2 is nut, and 3 is the screw keyway, and 4 is screw, and 5 is spring, and 6 is special-shaped slide key.
A kind of anti-theft special bolts as shown in the figure, it is made up of screw, nut, spring, special-shaped slide key.Spring and special-shaped slide key clamp in the screw keyway, and in the special-shaped slide key pressurized meeting retraction screw keyway, pressure disappears and can eject automatically again.Turn clockwise after nut is screwed in screw, under the ramp effect of nut keyway, special-shaped slide key is pressed into the screw keyway, turns clockwise and can carry out smoothly.When being rotated counterclockwise, special-shaped slide key loses positive pressure and just can eject automatically, makes to be rotated counterclockwise and can't to carry out.Have only the use removal tool special, it is snapped in nut after, the thimble on it just can be pressed into special-shaped slide key in the screw keyway, makes the clockwise and anticlockwise of nut become smooth and easy.
Claims (1)
1, a kind of anti-theft bolt comprises a screw, a nut; It is characterized in that described screw for a keyway to be set on the screw rod of standard piece screw, in keyway, be provided with spring and lead the shape slide key; Described nut is for to be provided with an inclined-plane keyway on the standard nut madial wall, so that after special-shaped slide key entered keyway, nut can only promptly turn clockwise along a direction rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201024 CN2370207Y (en) | 1999-01-28 | 1999-01-28 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201024 CN2370207Y (en) | 1999-01-28 | 1999-01-28 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370207Y true CN2370207Y (en) | 2000-03-22 |
Family
ID=33996885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99201024 Expired - Fee Related CN2370207Y (en) | 1999-01-28 | 1999-01-28 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370207Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366926C (en) * | 2006-04-06 | 2008-02-06 | 张连墩 | Checkscrew built in spring lamination |
| CN105156449A (en) * | 2015-10-08 | 2015-12-16 | 国网山东省电力公司泰安供电公司 | Anti-dismounting bolt and nut combined structure |
| CN105864260A (en) * | 2016-05-31 | 2016-08-17 | 国网山东省电力公司宁津县供电公司 | Unidirectional anti-detaching bolt |
-
1999
- 1999-01-28 CN CN 99201024 patent/CN2370207Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100366926C (en) * | 2006-04-06 | 2008-02-06 | 张连墩 | Checkscrew built in spring lamination |
| CN105156449A (en) * | 2015-10-08 | 2015-12-16 | 国网山东省电力公司泰安供电公司 | Anti-dismounting bolt and nut combined structure |
| CN105864260A (en) * | 2016-05-31 | 2016-08-17 | 国网山东省电力公司宁津县供电公司 | Unidirectional anti-detaching 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 |