CN2396225Y

CN2396225Y - Anti-theft nut

Info

Publication number: CN2396225Y
Application number: CN 99245133
Authority: CN
Inventors: 胡峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-20
Filing date: 1999-10-20
Publication date: 2000-09-13
Anticipated expiration: 2009-10-20

Abstract

The utility model relates to a theftproof screw nut, which is a circular screw nut. The end surface of the screw nut is provided with 2 to 6 perforating holes or blind holes, two pins of a spanner with pins are inserted in the holes of a spiral line end surface, the circular screw nut can be screwed with the rotation along a clockwise direction, and then, a hole burying pin is beat in the holes. Because spanners do not have working points, the screw nut is incapable of backing, and thereby, the theftproof function is effectively achieved. The utility model has the advantages of simple structure, easy manufacturing, convenient operation, and good theftproof effect.

Description

Anti-theft nut

The utility model discloses a kind of fastening piece, specifically is a kind of nut with anti-theft feature.

Nut bolt must use usually in pairing.Existing fastening piece with anti-theft feature is thought hard on nuts and bolt mostly simultaneously, and also need match and use just tool anti-theft feature, and delicate structure, difficulty of processing is big.As a kind of standard piece commonly used, such anti-theft nut bolt is also inapplicable, so is difficult to see its trace on the market.But the occasion that needs anti-theft fastening piece is very many really, for example: Theft-proof iron door, use fields such as fence; The field such as fastening of important communication, electric power, national defense facility.

The purpose of this utility model provides a kind of have anti-theft feature and the very simple anti-theft nut of structure.

Described anti-theft nut is a kind of round nut, and 2-6 perforation or blind hole are arranged on its end face.

And use general nut adopted weldering between six square nuts and the bolt is dead, maybe the bolt screw thread that comes out is upset, the traditional antitheft way that nut can't be withdrawed from is compared, this anti-theft nut is easy to use, do not destroy simultaneously overall appearance, have general nut incomparable advantage, easy processing has anti-theft effect preferably.

Plan view when Fig. 1-the 1st, the utility model end face have two perforation.

Fig. 1-2 is the sectional view of Fig. 1-1.

Fig. 1-the 3rd, the utility model and the matching used buried via hole pin structure of perforation round nut schematic representation.

Fig. 2-the 1st, plan view when the utility model end face has two blind holes.

Fig. 2-the 2nd, the sectional view of Fig. 2-1.

Fig. 2-the 3rd, the utility model and the matching used buried via hole pin structure of blind hole round nut schematic representation.

The supporting use of antitheft round nut and EXPANSION ANCHOR BOLTS, it is mainly used in antitheft door, the outdoor mounted of security mesh.Different is with general round nut, and 2-6 perforation 2 (or blind holes) are arranged on end face.It is the spanner (adjustable spanner by the band pin after improving, double end is pulled instead, socket wrench all can), two pins of spanner are inserted in the hole 2 of nut end faces, rotate along clockwise direction, and round nut is tightened, then buried via hole pin 3 (or buried via hole lid) is thrown in the hole, the hole sealing is dead, make spanner lose function because of no spanner position, nut can't withdraw from, thereby has played antitheft effect effectively.The 2-6 hole is uniform on end face, and the aperture can be adjusted according to the nut size, is generally 2-8mm.

Claims

1, a kind of anti-theft nut is characterized in that: described nut (1) is a kind of round nut, and 2-6 perforation or blind hole (2) are arranged on the end face.

2, anti-theft nut as claimed in claim 1 is characterized in that: be embedded with buried via hole pin (3) in described round nut perforation or blind hole.