CN203784067U - Reusable anti-theft bolt - Google Patents
Reusable anti-theft bolt Download PDFInfo
- Publication number
- CN203784067U CN203784067U CN201420125417.6U CN201420125417U CN203784067U CN 203784067 U CN203784067 U CN 203784067U CN 201420125417 U CN201420125417 U CN 201420125417U CN 203784067 U CN203784067 U CN 203784067U
- Authority
- CN
- China
- Prior art keywords
- theft
- blind hole
- bolt
- pin
- reusable
- 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
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims abstract description 5
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037250 Clearance Effects 0.000 abstract 1
- 230000035512 clearance Effects 0.000 abstract 1
- 101700078171 KNTC1 Proteins 0.000 description 3
- 238000005086 pumping Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to a reusable anti-theft bolt, which is used for the bolt anti-theft of oil field equipment. The reusable anti-theft bolt overcomes the defects existing in other arts. The reusable anti-theft bolt is formed by connecting a screw, a nut, a gasket, an anti-theft pin and a blind hole, the nut is screwed on the thread of the screw, the blind hole is formed in the upper part of the thread of the screw, the anti-theft pin is arranged in the blind hole and is in clearance fit with the blind hole, the gasket and the anti-theft pin are inserted into the blind hole in a matching way and are in interference fit with each other, the anti-theft pin is made of a hard material, the outer end of the anti-theft pin is higher than a threaded surface to prevent the nut from being removed, round-head chamfers are formed at the two ends of the anti-theft pin, and the gasket is made of a low-melting point metal material.
Description
Technical field: it is antitheft that the utility model relates to the bolt of oil field field equipment, especially a kind of reusable anti-theft bolt.
Background technique: in oil field development is produced, field equipment especially the various clamping bolts of the main equipment such as pumping unit because the most of the time is all in unmanned state.Lawless person uses the general tool just can be by disassembling bolts, and bolt or equipment part are stolen, and cause heavy economic losses, and the field equipment in oil field is antitheft is an important job.Daily antitheft be all by bolt connect fastening after, bolt top-side thread damage is welded, form outstanding solder joint, cause nut to lay down.During dismounting, bolt must be cut off, cause a large amount of wastes.Through retrieval, find there are many pieces about the patent documentation of anti-theft bolt.These products are taked be special tool or antitheft after the method that cannot dismantle, once special tool runs off or is imitated having large quantities of goods and materials stolen.Special tool loses meaning.Cannot demounting bolt after antitheft, will in corrective maintenance, remove when antitheft just by the screw bolt cutting of antitheft mistake, antitheft and remove antitheft all needs and employ electric welding vehicle, cause a large amount of wastes.
Summary of the invention: the purpose of this utility model is to provide a kind of simple in structure, easy to operate a kind of reusable anti-theft bolt, it has overcome the shortcoming that other technology exists, the purpose of this utility model is to realize like this, it is to be formed by connecting by screw rod, nut, liner, anti-theft pin, blind hole, is revolving nut on screw flight, on screw flight top, has blind hole, in blind hole, have anti-theft pin, both are Spielpassung; Liner coordinates insertion blind hole with anti-theft pin, and is interference fit; Anti-theft pin is hard material, and its outer end exceeds flank of thread, prevents that nut from being drawn off; Anti-theft pin double headed roller round end chamfering; Liner is low melting point metal material.
During application, according to large features of the main equipment diameter of bolt such as pumping units, in screw rod upper side, bore a horizontal obstructed blind hole.Between anti-theft pin and blind hole, be Spielpassung, bolt install fastening after, will put into blind hole than the low-melting metal gasket of steel, by anti-theft pin pound into, form interference fit, the projecting point leaking outside part can replace antitheft solder joint, makes it to take out.Remove when antitheft, heat anti-theft pin position, antitheft hole, can recover the Spielpassung state of blind hole and anti-theft pin, freely take out anti-theft pin, remove anti-theft state, detachable, so just can guarantee the recycling of bolt.
Benefit of the present utility model is: the utility model is simple in structure, easy to operate, and good anti-theft effect is used the conventional instrument can be antitheft, and not damaged while removing anti-theft bolt, can reuse, not only cost-saving but also production safety.
Accompanying drawing explanation: the structural representation that Fig. 1 is a kind of reusable anti-theft bolt, in figure 1, screw rod 2, nut 3, liner 4, anti-theft pin 5, blind hole.
Embodiment: embodiment 1, the utility model are to be formed by connecting by screw rod 1, nut 2, liner 3, anti-theft pin 4, blind hole 5, on the screw thread of screw rod 1, revolving nut 2, blind hole 5 is arranged at the screw thread top at screw rod 1, has anti-theft pin 4 in blind hole 5, and both are Spielpassung; Liner 3 coordinates insertion blind hole with anti-theft pin 4, and is interference fit; Anti-theft pin is hard material, and its outer end exceeds flank of thread, prevents that nut from being drawn off.
Embodiment 2, anti-theft pin 4 double headed roller round end chamferings.
Embodiment 3, liner 3 are low melting point metal material.
Claims (3)
1. a reusable anti-theft bolt, it is to be formed by connecting by screw rod (1), nut (2), liner (3), anti-theft pin (4), blind hole (5), it is characterized in that: on the screw thread of screw rod (1), revolving nut (2), at screw rod, (blind hole (5) is arranged at 10 screw thread top, in blind hole (5), have anti-theft pin (4), both are Spielpassung; Liner (3) coordinates insertion blind hole with anti-theft pin (4), and is interference fit; Anti-theft pin (4) is hard material, and its outer end exceeds flank of thread.
2. a kind of reusable anti-theft bolt according to claim 1, is characterized in that: anti-theft pin (4) double headed roller round end chamfering.
3. a kind of reusable anti-theft bolt according to claim 1, is characterized in that: liner (3) is low melting point metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125417.6U CN203784067U (en) | 2014-03-20 | 2014-03-20 | Reusable anti-theft bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125417.6U CN203784067U (en) | 2014-03-20 | 2014-03-20 | Reusable anti-theft bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784067U true CN203784067U (en) | 2014-08-20 |
Family
ID=51320258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125417.6U Expired - Fee Related CN203784067U (en) | 2014-03-20 | 2014-03-20 | Reusable anti-theft bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784067U (en) |
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| CN105783505B (en) * | 2016-03-05 | 2018-08-14 | 合肥龙图腾信息技术有限公司 | Air-introduced machine rotates kiln system convenient for the bag-type dust formula manganese processing of dismantling |
| CN105674717B (en) * | 2016-03-05 | 2018-10-19 | 姚建华 | A kind of heat-pump-type tail recuperation of heat penetrates adverse current fluidized dryer |
| CN105716402B (en) * | 2016-03-05 | 2018-11-16 | 罗军 | Tail heat utilization sieve pore turnover plate type drying machine |
| CN105651028A (en) * | 2016-03-05 | 2016-06-08 | 吉首大学 | Hot-air penetration and reversed-current drying machine for tail heat utilization |
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