CN2370203Y - Anti-theft bolt - Google Patents
Anti-theft bolt Download PDFInfo
- Publication number
- CN2370203Y CN2370203Y CN 99201126 CN99201126U CN2370203Y CN 2370203 Y CN2370203 Y CN 2370203Y CN 99201126 CN99201126 CN 99201126 CN 99201126 U CN99201126 U CN 99201126U CN 2370203 Y CN2370203 Y CN 2370203Y
- Authority
- CN
- China
- Prior art keywords
- screw
- bowl
- theft bolt
- nut
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to a special screw bolt with an anti-theft performance, comprising a screw, a screw nut, and a screw bowl, wherein, the center of a bowl bottom of the screw bowl is provided with a hole. The anti-theft screw bolt which is designed by the utility model has the advantages of scientificalness, reasonableness, novel design, and simple structure. The special screw bolt with an anti-theft performance can not be dismounted without special tools. Thus, the anti-theft performance is very great. The screw bolts with the anti-theft performance of various standards can be assembled by adopting the screw and the screw nut, and matching with the screw bowl of the utility model.
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 communal facility, 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, nut and spiral shell bowl, and the bowl end central authorities of described spiral shell bowl have the hole.
The number of spiral shell bowl is 1-2 described in the anti-theft bolt of the utility model design.
Screw nut cross section perpendicular to axial direction described in the anti-theft bolt of the utility model design can be standard Hexagon, regular pentagon, different pentagon, positive Heptagon or different Heptagon.
The cross section perpendicular to axial direction of nut described in the anti-theft bolt of the utility model design can be standard Hexagon, regular pentagon, different pentagon, positive Heptagon or different Heptagon.
Wherein, the thread size of described screw, nut is the standard piece size.
The anti-theft bolt of the utility model design is scientific and reasonable, and modern design is simple in structure; Not having special special tool can't dismantle, thereby theftproof performance is very strong.Adopt the design's screw, nut to cooperate the spiral shell bowl can form the anti-theft bolt of all size, applied widely.
Further describe the utility model below in conjunction with drawings and Examples.
The structural representation of the spiral shell bowl 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.
The structural representation of the screw of the anti-theft bolt that accompanying drawing 3 designs for the utility model.
Accompanying drawing 4 is the structural representation after a kind of preferred anti-theft bolt cooperates.
Wherein label 1 is a screw, and 2 is nut, and 3 is the spiral shell bowl, and 4 is the nut of screw.
A kind of anti-theft special bolts as shown in the figure, it is made up of screw, nut and spiral shell bowl.When the cross section is that the working standard instrument was it can't to be pulled down as live spanner, sleeve spanner, pipe wrench etc. after the screw 1, nut 2 of regular pentagon closely cooperated together with spiral shell bowl 3, can only can dismounting with special special spanner.
The thread size of wherein said screw, nut is standard measure.
Claims (4)
1, a kind of anti-theft bolt is characterized in that comprising a screw, nut and spiral shell bowl, and the bowl end central authorities of described spiral shell bowl have the hole.
2, anti-theft bolt as claimed in claim 1, the number that it is characterized in that described spiral shell bowl are 1-2.
3, anti-theft bolt as claimed in claim 1 is characterized in that described screw nut cross section perpendicular to axial direction is standard Hexagon, regular pentagon, different pentagon, positive Heptagon or different Heptagon.
4, anti-theft bolt as claimed in claim 1, the cross section perpendicular to axial direction that it is characterized in that described nut are standard Hexagon, regular pentagon, different pentagon, positive Heptagon or different Heptagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201126 CN2370203Y (en) | 1999-02-01 | 1999-02-01 | Anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201126 CN2370203Y (en) | 1999-02-01 | 1999-02-01 | Anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370203Y true CN2370203Y (en) | 2000-03-22 |
Family
ID=33996968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99201126 Expired - Fee Related CN2370203Y (en) | 1999-02-01 | 1999-02-01 | Anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370203Y (en) |
-
1999
- 1999-02-01 CN CN 99201126 patent/CN2370203Y/en not_active Expired - Fee Related
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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 |