CN202064874U - Antitheft bolt - Google Patents
Antitheft bolt Download PDFInfo
- Publication number
- CN202064874U CN202064874U CN2011201532657U CN201120153265U CN202064874U CN 202064874 U CN202064874 U CN 202064874U CN 2011201532657 U CN2011201532657 U CN 2011201532657U CN 201120153265 U CN201120153265 U CN 201120153265U CN 202064874 U CN202064874 U CN 202064874U
- Authority
- CN
- China
- Prior art keywords
- cap
- antitheft
- theft
- 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
Links
Abstract
The utility model belongs to an antitheft bolt of a wellhead of an oil well and particularly discloses an antitheft bolt for preventing the loss of the wellhead. The antitheft bolt consists of a screw rod, a nut, a fixing plate, an antitheft cap, a mounting/dismounting cap, an antitheft protecting sleeve and a wrenching rod. The antitheft bolt is characterized in that convex corners are arranged at the lower end of the antitheft cap, the fixing plate is arranged on the exterior of the convex corners of the antitheft cap and can rotate optionally after mounting, the fixing plate and the antitheft cap are arranged in the antitheft protecting sleeve, the nut is arranged at the upper part of the screw rod, and an assembled antitheft cap is arranged at the upper end of the screw rod by the mounting/dismounting cap, so that the lower end of the antitheft cap is closely pressed on the upper end of the nut, and the antitheft protecting sleeve is sleeved on the exterior of the nut.
Description
Technical field
The utility model belongs to the well mouth of oil well anti-theft bolt, especially can prevent a kind of anti-theft bolt that well head is lost.
Background technology
At present, each elephant of China all is a plain bolt to producing well and the employing of dead well well head bolt, and this bolt does not reach antitheft effect, causes well head and valve often to be lost.
Summary of the invention
In order to overcome the problems referred to above, the utility model provides a kind of anti-theft bolt, this anti-theft bolt is equipped with cap nut on the lead screw, be equipped with Anti-theft cap on the cap nut, between cap nut and the Anti-theft cap fixed head is arranged, there is antitheft sheath the outer end of fixed head, in the lower end of antitheft sheath cap nut is housed, and dismounting cap and Anti-theft cap all have eccentric design, the off-centre of the off-centre of dismounting cap and Anti-theft cap and antitheft sheath are stuck in the antitheft sheath and become one during dismounting, rotate any dismounting of dismounting cap.
The technical scheme in the invention for solving the technical problem is: a kind of anti-theft bolt is by lead screw, cap nut, fixed head, Anti-theft cap, the dismounting cap, antitheft sheath, tommy bar is formed, its special character is: there is salient angle the Anti-theft cap lower end, fixed head is installed in the outside of Anti-theft cap salient angle, can arbitrarily rotate after the installation, fixed head and Anti-theft cap are installed in the antitheft sheath, cap nut is equipped with on the top of lead screw, the Anti-theft cap that assembles is installed in the upper end of lead screw with the dismounting cap, make the Anti-theft cap lower end be close to the cap nut upper end, antitheft sheath is enclosed within the cap nut outside.
The beneficial effects of the utility model are: simple in structure, easy to operate, can reach antitheft effect, and safe and reliable.
Description of drawings
Accompanying drawing is a generalized section of the present utility model.
In the accompanying drawing: the 1st, lead screw, the 2nd, cap nut, the 3rd, fixed head, the 4th, Anti-theft cap, the 5th, dismounting cap, the 6th, antitheft sheath, the 7th, tommy bar.
The specific embodiment
An embodiment is described in conjunction with the accompanying drawings:
In the accompanying drawing: lead screw 1, cap nut 2, fixed head 3, Anti-theft cap 4, dismounting cap 5, antitheft sheath 6, tommy bar 7, all be to form with lathe car system, fixed head 3 is installed on the salient angle of Anti-theft cap 4 lower ends, the outer end of fixed head 3 is welded on the inside of antitheft sheath 6, lead screw 1 top is equipped with cap nut 2, one end of tommy bar 7 is welded on the outside of dismounting cap 5 with electric welding, the Anti-theft cap 4 that assembles is installed in the upper end of lead screw 1 with dismounting cap 5, make Anti-theft cap 4 lower ends be close to the upper end of cap nut 2, antitheft sheath 6 is enclosed within the outside of cap nut 2.
Claims (1)
1. an anti-theft bolt is made up of lead screw, cap nut, fixed head, Anti-theft cap, dismounting cap, antitheft sheath, tommy bar, it is characterized in that: there is salient angle the Anti-theft cap lower end, fixed head is installed in the outside of Anti-theft cap salient angle, can arbitrarily rotate after the installation, fixed head and Anti-theft cap are installed in the antitheft sheath, cap nut is equipped with on the top of lead screw, the Anti-theft cap that assembles is installed in the upper end of lead screw with the dismounting cap, make the Anti-theft cap lower end be close to the cap nut upper end, antitheft sheath is enclosed within the cap nut outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201532657U CN202064874U (en) | 2011-05-09 | 2011-05-09 | Antitheft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201532657U CN202064874U (en) | 2011-05-09 | 2011-05-09 | Antitheft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064874U true CN202064874U (en) | 2011-12-07 |
Family
ID=45058742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201532657U Expired - Fee Related CN202064874U (en) | 2011-05-09 | 2011-05-09 | Antitheft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064874U (en) |
-
2011
- 2011-05-09 CN CN2011201532657U patent/CN202064874U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202064874U (en) | Antitheft bolt | |
| CN203051383U (en) | Sealing bolt with mounting function | |
| CN205172504U (en) | Oil gas well well head anti -theft device | |
| CN203098534U (en) | Outward pulling type self-locking bolt | |
| CN203051391U (en) | Pre-tightening bolt with mounting function | |
| CN201883769U (en) | Anti-falling top-bottom lock hook structure of antitheft door lock | |
| CN203051373U (en) | Sealing type countersunk screw bolt | |
| CN203129991U (en) | Anti-theft slip | |
| CN202280302U (en) | Electronic lock | |
| CN204040648U (en) | A kind of lock core | |
| CN202991995U (en) | Valve and piston ring combined part of landing gear buffer | |
| CN204040453U (en) | A kind of novel scaffold Tiebar structure for civil construction project | |
| CN204128718U (en) | A kind of factory building tension Rod Bracing alarming device | |
| CN203184525U (en) | Locating block of toothpaste tuber capping motor | |
| CN202358447U (en) | Easily-opened beverage bottle | |
| CN201902426U (en) | Screw rod | |
| CN203532861U (en) | Three-way plug valve | |
| CN203441198U (en) | Elevator triangular lock | |
| CN202342997U (en) | Rotary installation safety valve for filter core of filter | |
| CN202810690U (en) | Safety connector with zigzag thread | |
| CN203715190U (en) | Dustproof device for oil pump of manual hydraulic stacker | |
| CN202628139U (en) | Drilling anchor rod | |
| CN203314574U (en) | Door lock showing stand | |
| CN201292711Y (en) | Anti-theft door lock | |
| CN203568762U (en) | Supporting tube for hoist trolley frame |
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: 20111207 Termination date: 20120509 |