CN2573749Y - Conicity sevenangular theftproof bolt - Google Patents
Conicity sevenangular theftproof bolt Download PDFInfo
- Publication number
- CN2573749Y CN2573749Y CN 02283179 CN02283179U CN2573749Y CN 2573749 Y CN2573749 Y CN 2573749Y CN 02283179 CN02283179 CN 02283179 CN 02283179 U CN02283179 U CN 02283179U CN 2573749 Y CN2573749 Y CN 2573749Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- conicity
- utility
- model
- nut
- 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
Links
Images
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model relates to a bolt, particularly a theftproof bolt for fastening parts or means on outdoor facilities such as electric transmission lines, steel towers, highroad guardrails, etc. When the existing bolt is used for fastening parts or means on permanent facilities, the bolt is easy to be disassembled by other people in private, and when the bolt is fixedly welded in a weld mode, the operation is hard to manipulate; aiming at the defects, the utility model provides a conicity seven angular theftproof bolt which can not be loosened by common tools after the bolt is screwed tightly. The conicity seven angular theftproof bolt of the utility model comprises a bolt and a nut, and has the essential point that the bolt head of the bolt as well as the nut are conicity seven angular. When the utility model is used, the bolt is inserted into the hole of a part needed to be connected and fixed, and the nut of the conicity seven angular theftproof bolt is screwed tightly by a special tool. The utility model is particularly suitable for fastening bolts on the outdoor permanent facilities such as the electric transmission lines, the steel towers, the highroad guardrails, etc.
Description
Technical field
The utility model relates to a kind of bolt, particularly a kind of anti-theft bolt that is used for being used on the external facilities such as electric transmission line, iron tower, highway barrier fastenings or member.
Background technique
Existing bolt generally is made up of screw rod and nut, and as fastening piece commonly used, bolt is widely used for fastenings or member.The profile of existing screw head and nut is to adopt the hexagonal cylindricality, adopt existing common tool to tighten or unclamp to it, when existing bolt is used for outdoor and fixes part or member, dismantled privately by other people easily, this can cause any property loss, sometimes even can cause security incident.Dismantled privately by other people in order to prevent to be used for to be used on the external facilities bolt of fastenings or member, people solve by the method that nut and screw rod are welded together, this has inconvenience in operation, and work as nut in case welded after death, just can not tighten up again if loosening back takes place for fastened part or member, it can not have been unclamped when fastened part or member need be dismantled.
Summary of the invention
When the utility model is used for fastenings or member at existing bolt on being used for permanent facility, dismantled privately by other people easily; Method by welding is with stud weld when dead, unhandy deficiency, provide a kind of can not be after bolt is tightened with common tool to its conicity heptangle anti-theft bolt that unclamps.
The technical solution adopted in the utility model is finished in the following way: conicity heptangle anti-theft bolt comprises screw rod and nut, and its main points are: the screw head of screw rod and nut be shaped as the conicity heptagon.During use, the screw rod insertion need be connected and fixed in the hole at position, by the nut screwing clamping of special tool with conicity heptangle anti-theft bolt.
The utility model is compared with existing bolt, and having after bolt is tightened can not be with common tool to its characteristic of unclamping, thereby has guaranteed that fastener can not dismantled privately by other people.The utility model is particularly suitable as the clamping bolt on the outdoor permanent facilitys such as electric transmission line, iron tower, highway barrier.
Description of drawings
Fig. 1 is the structural representation of conicity heptangle anti-theft bolt.
Fig. 2 is the structural representation of conicity heptangle anti-theft bolt screw rod.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the structural representation of conicity heptangle theftproof bolt nut.
Fig. 5 is the left view of Fig. 4.
Embodiment
Contrast accompanying drawing below, the utility model is described in further detail by embodiment.
To accompanying drawing 5, a kind of conicity heptangle of the utility model anti-theft bolt comprises screw rod (1) and nut (2) with reference to accompanying drawing 1, and wherein the screw head (3) of screw rod (1) adopts the manufacturing of off-gauge conicity heptagon with nut (2).During use, screw rod (1) inserted to be connected and fixed in the hole at position, by special tool the nut (2) of conicity heptangle anti-theft bolt is tightened and got final product.
Claims (2)
1, a kind of conicity heptangle anti-theft bolt is characterized in that this conicity heptangle anti-theft bolt comprises screw rod (1) and nut (2), and wherein the screw head (3) of screw rod (1) is shaped as the conicity heptagon.
2, conicity heptangle anti-theft bolt according to claim 1, what it is characterized in that nut (2) is shaped as the conicity heptagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02283179 CN2573749Y (en) | 2002-10-21 | 2002-10-21 | Conicity sevenangular theftproof bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02283179 CN2573749Y (en) | 2002-10-21 | 2002-10-21 | Conicity sevenangular theftproof bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573749Y true CN2573749Y (en) | 2003-09-17 |
Family
ID=33745048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02283179 Expired - Fee Related CN2573749Y (en) | 2002-10-21 | 2002-10-21 | Conicity sevenangular theftproof bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573749Y (en) |
-
2002
- 2002-10-21 CN CN 02283179 patent/CN2573749Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2573749Y (en) | Conicity sevenangular theftproof bolt | |
| CN2654933Y (en) | Antitheft nut | |
| CN109268382A (en) | A kind of anti-theft bolt | |
| CN2541659Y (en) | Self-locking anti-theft bolt | |
| CN201666302U (en) | Passive theftproof bolt and nut | |
| CN2635977Y (en) | Convenient loosening-preventing screw | |
| CN2854185Y (en) | Multiple centre of circle deformed cone anti-theft screw and sleeve | |
| CN2908896Y (en) | Fastener of anti-loss screw | |
| CN2544131Y (en) | Theft-proof screw joint assembly | |
| CN2362962Y (en) | Folding type pillar shuttering clamp | |
| CN214465311U (en) | Connecting piece for preventing fastener from loosening | |
| CN2714877Y (en) | Threaded fastener burglar alarm | |
| CN211899588U (en) | Building corner piece | |
| CN2721953Y (en) | Heat treatment hardened security screw nut with tapered external angles | |
| CN2372497Y (en) | Theft-proof nut and complete set of tool | |
| CN216740976U (en) | Exempt from metal turn connecting piece of integrated equipment rail of welding | |
| CN2766095Y (en) | Anti-theft nut hardened by heat treatment | |
| CN220469460U (en) | Intelligent safety device based on BIM technology | |
| CN216299133U (en) | Wire-pulling locking structure without operating gap | |
| CN216951205U (en) | Hexagon flange nut with anti-loosening structure | |
| CN210484317U (en) | Novel hexagon socket head cap expansion bolts convenient to installation | |
| CN213393079U (en) | Bolt made of glass fiber reinforced plastic | |
| CN215055223U (en) | Scaffold frame right angle fastener | |
| CN202140407U (en) | Anti-theft thread connection device | |
| CN210879503U (en) | Flange aligning tool |
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 |