CN102192231A

CN102192231A - Anti-theft device

Info

Publication number: CN102192231A
Application number: CN 201110063870
Authority: CN
Inventors: 张宪云
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-17
Filing date: 2011-03-17
Publication date: 2011-09-21

Abstract

The invention relates to an anti-theft device, in particular to an anti-theft nut. An anti-theft gasket is provided with a ladder axle hole and a blind hole is arranged in the wall of a large hole of the ladder axle hole; a detent is embedded in the blind hole and a pressure spring is arranged between the detent and the bottom of the blind hole; the anti-theft nut is arranged in the large hole of the ladder axle hole, and the cylindrical side of the anti-theft nut is provided with ratchet teeth through which the anti-theft nut is matched with the detent. In the invention, the anti-theft device has the advantages of simple structure and good anti-theft effect.

Description

A kind of anti-theft device

Technical field

The present invention relates to a kind of anti-theft device, particularly a kind of anti-theft nut.

Background technique

At present, the use of bolt and nut is very general.In order to prevent dismounting, invented anti-theft nut.The structure of anti-theft nut has nothing in common with each other, and as spiral wedge shape anti-loose anti-theft nut, twisting and sliding type anti-theft nut, needle-type anti-theft nut, ball type anti-theft nut etc., because nut exposes, actual anti-theft effect is poor.

Summary of the invention

In order to overcome the shortcoming of prior art, the invention provides a kind of anti-theft device, it is simple in structure, good anti-theft effect.

The present invention solves the technological scheme that its technical problem takes: Anti-theft washer has the ladder axis hole, on the big hole wall of ladder axis hole blind hole is arranged, be embedded with ratchet in the blind hole, between ratchet and the blind hole bottom surface stage clip is arranged, be equipped with and anti-theft nut in the macropore of described ladder axis hole, there is hook tooth the cylndrical surface of anti-theft nut, and described anti-theft nut is by hook tooth and described click-fit.

Fixing bumping post on the small end outer end wall of the ladder axis hole of described Anti-theft washer.

After anti-theft nut screwed in Anti-theft washer inside, with click-fit, folk prescription can not instead move back to rotation only, and Anti-theft washer has effectively wrapped anti-theft nut again, the outside application of force of having no way of, good anti-theft effect.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a sectional view of the present invention;

Fig. 2 is an Anti-theft washer plan view of the present invention;

Fig. 3 is an Anti-theft washer left view of the present invention;

Fig. 4 is an anti-theft nut plan view of the present invention.

Embodiment

As shown in Figure 1, 2, Anti-theft washer 5 has the ladder axis hole, on macropore 4 walls of ladder axis hole blind hole is arranged, and is embedded with ratchet 7 in the blind hole, between ratchet 7 and the blind hole bottom surface stage clip 6 is arranged.In the macropore 4 of described ladder axis hole anti-theft nut 8 is housed, there is hook tooth 10 cylndrical surface of anti-theft nut 8.Described anti-theft nut 8 cooperates with described ratchet 7 by hook tooth 10.Fixing bumping post 3 on aperture 9 outer end wall of the ladder axis hole of described Anti-theft washer 5.

During use,, then Anti-theft washer 5 is placed on the matrix of fastener, in the lock pin aperture on the bumping post 3 insertion matrixes of Anti-theft washer 5 boring the lock pin aperture corresponding on the matrix of fastener 2 with bumping post 3.The inside of plain bolt 1 from fastener 2 is passed, behind Anti-theft washer 5, with special spanner anti-theft nut and plain bolt 1 are tightened and to be got final product.

Claims

1. anti-theft device, it is characterized in that: Anti-theft washer (5) has the ladder axis hole, on the macropore of ladder axis hole (4) wall blind hole is arranged, be embedded with ratchet (7) in the blind hole, stage clip (6) is arranged between ratchet (7) and the blind hole bottom surface, anti-theft nut (8) is housed in the macropore of described ladder axis hole (4), there is hook tooth (10) cylndrical surface of anti-theft nut (8), described anti-theft nut (8) cooperates with described ratchet (7) by hook tooth (10), fixing bumping post (3) on aperture (9) outer end wall of the ladder axis hole of described Anti-theft washer (5).

2. anti-theft screw cap according to claim 1 is characterized in that: fixing bumping post (3) on aperture (9) outer end wall of the ladder axis hole of described Anti-theft washer (5).