CN201310592Y

CN201310592Y - Double-torsion spring

Info

Publication number: CN201310592Y
Application number: CNU2008201232646U
Authority: CN
Inventors: 李四龙
Original assignee: Changzhou Taishan Spring Co Ltd
Current assignee: Changzhou Taishan Spring Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-09-16
Anticipated expiration: 2018-12-31

Abstract

The utility model discloses a double-torsion spring which comprises a first built-in end, a second built-in end and a distortion body arranged between the first built-in end and the second built-in end, wherein the distortion body is spiral and is provided with a plurality of spiral ring bodies; the first built-in end outwards extends from one end of the distortion body, and a vertically bent built-in structure is arranged on the first built-in end; the second built-in end outwards bends and extends from the other end of the distortion body, and a winding built-in structure is arranged on the second built-in end. The double-torsion spring has simple structure, stable connection with outside objects, and less susceptible distortion when in stress.

Description

Double torsion spring

Technical field

The utility model relates to a kind of spring structure, particularly a kind of torsion spring structure of using warping force realization contraction.

Background technique

Because early stage spring is just formed by the bending of rubber-like object, just directly utilizes the elastic force of this object to make it do a to-and-fro motion on limited deflection distance.

For above-mentioned, though early stage spring has satisfied people's needs to a certain extent, but, the elastomeric objects that it is just crooked, under some pressure ratios big situation and in some balanced controls, the elastomeric objects of this bending just can't bear these load, and is easy to compressive deformation, even damages.

The model utility content

In view of the foregoing, main purpose of the present utility model is to provide a kind of dependence warping force to realize shrinking, and is not easy distortion, and can bear the double torsion spring of big load.

To achieve these goals, the utility model has adopted following technical proposals:

Described double torsion spring comprises first set terminal, second set terminal and the distortion body between this first set terminal and second set terminal, and wherein, described distortion body is a helical, and has a plurality of spiral circle bodies; Described first set terminal forms for stretching out from this described distortion body one end, has the structure of inserting of vertical bending thereon; Described second set terminal also outwards bends extension from this described distortion body the other end and forms, and has one thereon and circles round and insert structure.

Double torsion spring described in the utility model is simple in structure, and is connected stablely with external object, and not yielding when stressed, quality is good.

Description of drawings

Fig. 1 is the structural representation of double torsion spring described in the utility model.

Embodiment

Come double torsion spring described in the utility model is described in further detail below in conjunction with accompanying drawing and specific implementation process.

Shown in Fig. 1, double torsion spring described in the utility model comprises first set terminal 10, second set terminal 11 and the distortion body 12 between this first set terminal 10 and second set terminal 11, wherein, described distortion body 12 is a helical, and have a plurality of spiral circle bodies 120, and between this spiral circle body 120 for closely touching mutually; Described first set terminal 10 forms for stretching out from these described distortion body 12 1 ends, has vertical bending thereon to insert structure 100, can easily it be inserted in pin or the axle in use according to this structure; Described second set terminal 11 also outwards bends to extend from this described distortion body 12 the other ends and forms, and has one thereon and circles round and insert structure 110, and this circles round and inserts structure 110 and can overlap hook in use in axle or sell difficult drop-off.

In addition, described distortion body 12 and first set terminal 10, second set terminal 11 are formed in one, and this distortion body 12 can be rotated by a long strip metal or resin annular and form.

During use, described first set terminal 10 and second set terminal 11 usually are to be inserted in pin or the axle, after being subjected to external force, then according to distortion body 12 axle center for axle produces a warping force, make spring rolling-in or unscrew.

Claims

1. a double torsion spring is characterized in that, comprises first set terminal, second set terminal and the distortion body between this first set terminal and second set terminal, and wherein, described distortion body is a helical, and has a plurality of spiral circle bodies that closely touch mutually; Described first set terminal forms for stretching out from this described distortion body one end, has vertical bending thereon to insert structure; Described second set terminal forms for outwards bend extension from this described distortion body the other end, has one thereon and circles round and insert structure