CN203784067U - Reusable anti-theft bolt - Google Patents

Reusable anti-theft bolt Download PDF

Info

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
Application number
CN201420125417.6U
Other languages
Chinese (zh)
Inventor
邵传江
张寿
张传甫
陈冬梅
苏庆华
吴连营
马建国
Original Assignee
邵传江
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 邵传江 filed Critical 邵传江
Priority to CN201420125417.6U priority Critical patent/CN203784067U/en
Application granted granted Critical
Publication of CN203784067U publication Critical patent/CN203784067U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of reusable anti-theft bolt
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.
CN201420125417.6U 2014-03-20 2014-03-20 Reusable anti-theft bolt Expired - Fee Related CN203784067U (en)

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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