CN201206581Y - V-shaped installation groove bolt and nut - Google Patents
V-shaped installation groove bolt and nut Download PDFInfo
- Publication number
- CN201206581Y CN201206581Y CNU2008200019614U CN200820001961U CN201206581Y CN 201206581 Y CN201206581 Y CN 201206581Y CN U2008200019614 U CNU2008200019614 U CN U2008200019614U CN 200820001961 U CN200820001961 U CN 200820001961U CN 201206581 Y CN201206581 Y CN 201206581Y
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- mounting groove
- arrangement mounting
- installation groove
- 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
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a bolt and a nut. The nut and a bolt head of the bolt adopt the outline of conical section. A V-shaped groove is formed in the installation position. After the bolt and the nut are installed with a special tool, the nut and the bolt can not be dismounted by any tool. The utility model is mainly used for permanent and anti-theft facilities.
Description
Technical field the present invention relates to a kind of not easily detachable screw bolt and nut.
Nut has the hexagonal flanged surface of hexagonal, square toes, hexagonal fluting and butterfly in the background technique GB standard piece, and that bolt has is hexagon head, square toes, hexagonal with the fluting class in the round end.Above-mentioned bolt, nut all have corresponding instrument to mount and dismount easily.Development along with society, the facility that some permanences occur is as: rail facility, freeway infrastructure, highway facilities, anti-thefting facility, and other outdoor communal facility, these facilities since permanence require parts and possess not quick detachable property being connected of bolt and nut with anti-theft
Summary of the invention task of the present invention provides a kind of convenient not easily detachable bolt, nut installed.
V-arrangement mounting groove nut has conical section profile, silk hole and V-arrangement mounting groove.On the conical section profile end face of above-mentioned nut the V-arrangement mounting groove is arranged.The installation surface of revolution of V-arrangement mounting groove is the partial nut tangent plane of state's nut center line, and V-arrangement mounting groove another side is that the nut tangent plane acutangulates with surface of revolution is installed, and the silk centerline hole is the nut center line.
V-arrangement mounting groove bolt has conical section profile bolt head, screw mandrel and V-arrangement mounting groove.On the conical section profile bolt head of above-mentioned bolt the V-arrangement mounting groove is arranged.The installation surface of revolution of V-arrangement mounting groove was the part bolt head tangent plane of bolt head center line, and V-arrangement mounting groove another side is that part bolt head tangent plane acutangulates with surface of revolution is installed, and the screw mandrel center line is the bolt center line.
Advantage of the present invention: after using special tool to install, use instruments such as pipe wrench, pliers, spanner, screw-driver not quick detachable, have anti-theft.
Be to have the group switching centre symmetry V-arrangement mounting groove three-view diagram of nut, bolt and the setting tool of installation clockwise below the description of drawings
Fig. 1 is the three-view diagram of nut
Fig. 2 is the three-view diagram of bolt
Fig. 3 is the three-view diagram of setting tool
Concrete implementation Fig. 1 is that the present invention has the embodiment that group switching centre symmetry is installed nut clockwise, and it can only the clockwise rotating force of transitive graph 3 instruments.The V-arrangement mounting groove bolt and nut that the present invention can also be made into two group switching centres symmetry and circumference is equally distributed and install counterclockwise.
Claims (2)
1 one kinds of V-arrangement mounting groove nuts have a conical section profile and a silk hole, it is characterized in that on the awl section shape end face of this nut the V-arrangement mounting groove being arranged.
2 one kinds of V-arrangement mounting groove bolts have awl section profile bolt head and screw mandrel, it is characterized in that on the awl section profile bolt head on this spiral shell the V-arrangement mounting groove being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200019614U CN201206581Y (en) | 2008-01-14 | 2008-01-14 | V-shaped installation groove bolt and nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200019614U CN201206581Y (en) | 2008-01-14 | 2008-01-14 | V-shaped installation groove bolt and nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206581Y true CN201206581Y (en) | 2009-03-11 |
Family
ID=40465644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200019614U Expired - Fee Related CN201206581Y (en) | 2008-01-14 | 2008-01-14 | V-shaped installation groove bolt and nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206581Y (en) |
-
2008
- 2008-01-14 CN CNU2008200019614U patent/CN201206581Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201344196Y (en) | Theft prevention bolt and special sleeve | |
| CN201763780U (en) | Conicity antitheft screw bolt and special sleeve barrel matched with same | |
| CN201206581Y (en) | V-shaped installation groove bolt and nut | |
| CN202188004U (en) | Heat treatment quenching hard enhancing anti-theft nut with propping bar being arranged on top surface | |
| CN202484047U (en) | Anti-theft screw | |
| CN208487492U (en) | A kind of adjustable shot-light mounting device of friction coefficient testing car | |
| CN201723562U (en) | Conical anti-theft bolt and special socket matched therewith | |
| CN2370207Y (en) | Anti-theft bolt | |
| CN2769594Y (en) | Ratchet antitheft bolt and clamping tool | |
| CN201763781U (en) | Conical antitheft bolt and special sleeve matched with the same | |
| CN201884432U (en) | Conicity theftproof bolt and matched special sleeve thereof | |
| CN102297192B (en) | Heat-treatment quenching hardened anti-theft nut with top barrier at top | |
| CN210565612U (en) | Screw sleeve for fixing screw of street lamp holder | |
| CN212665978U (en) | Universal tool for disassembling hexagon bolts | |
| CN201696436U (en) | Conicity antitheft bolt and matched special sleeve thereof | |
| CN202812478U (en) | Pipe clamp structure | |
| CN2370203Y (en) | Anti-theft bolt | |
| CN2447566Y (en) | Anti-theft locking bolt and nut | |
| CN201786902U (en) | Theftproof bolt | |
| CN211517313U (en) | Small-space dismounting test fixture deep-hole sleeve | |
| CN201687841U (en) | Conical theftproof bolt and matched special sleeve | |
| CN201696435U (en) | Conicity theft-preventing bolt and special sleeve matched thereof | |
| CN2314141Y (en) | Universal nut against stealing | |
| CN220850310U (en) | Fastening screw | |
| CN201687840U (en) | Conical theftproof bolt and matched special sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20110114 |