CN201763786U

CN201763786U - Twisting-sliding theftproof nut

Info

Publication number: CN201763786U
Application number: CN2010205113836U
Authority: CN
Inventors: 陈四甫; 陈明举; 胡永涛; 赵磊成
Original assignee: XUCHANG SIDA ELECTRIC POWER EQUIPMENT CO Ltd
Current assignee: XUCHANG SIDA ELECTRIC POWER EQUIPMENT CO Ltd
Priority date: 2010-08-31
Filing date: 2010-08-31
Publication date: 2011-03-16
Anticipated expiration: 2020-08-31

Abstract

The utility model relates to a theftproof nut used for field facilities such as a power system, a communication system, a highway and the like, in particular to a twisting-sliding theftproof nut. The twisting-sliding theftproof nut is characterized by comprising a nut main body and a compressing part, wherein the outside of the nut main body is in a round shape and is provided with an anti-dropping buckle; the inside of the nut main body is provided with a screw thread; the compressing part is a structure of which the inside is consilient with the anti-dropping buckle of the nut main body and the outside is a prism; the nut main body is embedded inside the compressing part; the surface of the nut main body, which enters one side of a bolt firstly, is provided with a surface protruding out of the compressing part; and a theftproof device is arranged inside the nut main body. The twisting-sliding theftproof nut with the structure has the advantage of better theftproof effect.

Description

A kind of twisting and sliding type anti-theft nut

Technical field

The utility model relates to anti-theft nut, and it applies to field facilities such as electric power system, communication system and expressway, particularly a kind of twisting and sliding type anti-theft nut.

Background technique

The structure of existing anti-theft nut is such: have in nut body inside an edge tighten direction from depth to shallow tighten groove, tighten and have steel ball and spring in the groove, the nut of this spline structure also has the shortcoming of anti-theft effect difference.

Summary of the invention

The purpose of this utility model is exactly at above-mentioned shortcoming, provides a kind of anti-theft effect better twisting and sliding type anti-theft nut.

The purpose of this utility model is achieved in that twisting and sliding type anti-theft nut, it is characterized in that: it comprises nut body and compressing member, that described nut body external is that circle has is anti-tripping, inside has screw thread, described compressing member is that the identical nut body in an inside is anti-tripping, the outside is prismatic structure, nut body is embedded in the inside of compressing member, nut body has the face that protrudes from compressing member at the mask of a side that is introduced into bolt, and nut body inside has anti-theft device.

The beneficial effects of the utility model are: the twisting and sliding type anti-theft nut of this spline structure has the better advantage of anti-theft effect.

Description of drawings

Fig. 1 is the structural representation of the utility model twisting and sliding type anti-theft nut.

Fig. 2 is the lobed structural representation in outer, nut body top.

Fig. 3 is the lobed structural representation in outer, another kind of nut body top.

Wherein, 1, nut body 2, compressing member 3, anti-theft device

Embodiment

The utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, twisting and sliding type anti-theft nut, it is characterized in that: it comprises nut body 1 and compressing member 2, that described nut body 3 outsides are that circle has is anti-tripping, inside has screw thread, described compressing member 2 is that identical nut body 1 compressing member in an inside, outside are prismatic structures, nut body 1 is embedded in the inside of compressing member 2, and nut body 1 has the face that protrudes from compressing member 2 at the mask of a side that is introduced into bolt, and nut body inside has anti-theft device.

Say that further the anti-tripping nut body that is meant of described nut body 1 has the reverse frustoconic structure; The identical nut body 1 in the inside of described compressing member 2 is meant that it has the cavity of reverse frustoconic, as shown in Figure 1.

Perhaps, say further that the anti-tripping outer, nut body top that is meant of described nut body 1 has projection; The identical nut body 1 in the inside of described compressing member 2 is meant that it has the structure of the projection of being governed by, shown in Fig. 2,3.

Say that further described anti-theft device 3 is meant: have in nut body inside along tightening direction recessed being pickled with grains or in wine from depth to shallow, be placed with the spring of steel ball and its back in the groove.

Perhaps, described anti-theft device 3 is meant: have jump ring at nut body, described jump ring is that to have a thread protrusion partial shape of nut body inside the same and be the wedge shape reed that diminishes towards tightening direction; The convex portion of nut body inside has the open texture that matches with jump ring.

During use, tighten outside compressing member, because nut body 1 has the face that protrudes from externally-packed structure at the face of a side that is introduced into bolt, nut body acts on earlier on the face of being fixed, and causes nut body 1 and compressing member loosening; Nut body inside has anti-theft device, can play to prevent the end purpose of outwards back-outing; Compressing member has an outside anti-tripping structure of identical nut body and can not come off; Because nut body 1 and externally-packed structure 2 junctions have round structure, can spin again, prevent to destroy with instrument.

Claims

1. twisting and sliding type anti-theft nut, it is characterized in that: it comprises nut body and compressing member, that described nut body external is that circle has is anti-tripping, inside has screw thread, described compressing member is that the identical nut body in an inside is anti-tripping, the outside is prismatic structure, nut body is embedded in the inside of compressing member, nut body has the face that protrudes from compressing member at the mask of a side that is introduced into bolt, and nut body inside has anti-theft device.

2. anti-theft nut according to claim 1 is characterized in that: the anti-tripping nut body that is meant of described nut body has the reverse frustoconic structure; The identical nut body in the inside of described compressing member is meant that it has the cavity of reverse frustoconic.

3. anti-theft nut according to claim 1 is characterized in that: the anti-tripping outer, nut body top that is meant of described nut body has projection; The identical nut body in the inside of described compressing member is meant that it has the structure of the projection of being governed by.

4. anti-theft nut according to claim 1 is characterized in that: described anti-theft device is meant: have in nut body inside along tightening direction recessed being pickled with grains or in wine from depth to shallow, be placed with the spring of steel ball and its back in the groove.

5. anti-theft nut according to claim 1, it is characterized in that: described anti-theft device is meant at nut body to have jump ring, and described jump ring is that to have a thread protrusion partial shape of nut body inside the same and be the wedge shape reed that diminishes towards tightening direction; The convex portion of nut body inside has the open texture that matches with jump ring.