Spring of double spiral structure

Abstract

The invention discloses a spring of a double spiral structure. The spring comprises a spring body, and the spring body is formed by a plurality of continuous first spiral coils and second spiral coils. The first spiral coils and the second spiral coils are distributed alternately. The diameter of the first spiral coils is larger than that of the second spiral coils. The spring of the double spiral structure is simple in structure and novel in design thought; the continuous spiral coils of the same size are designed into the alternate continuous spiral coils with a large size and a small size to form the double spiral structure; on the one hand, during stretching, the small-size spiral coils can effectively prevent the spring from being strengthened, and a protection function is achieved; and on the other hand, in a compression state, the small-size spiral coils achieves a rigid supporting function, the situation that the spring body is compressed to deviate from the compression direction can be avoided, and the rigidity of the spring during compression can be enhanced.

Description

technical field [0001] The invention relates to the field of springs, in particular to a double helix structure spring. Background technique [0002] A spring is a mechanical part that uses elasticity to work. The spring usually has the following two problems during use: 1. As long as the force used is large enough, it can be pulled apart completely. 2. During the compression process, the spring in the middle may pop out in the direction of compression, which cannot play the role of compression rebound. In the prior art, the above-mentioned problems are solved respectively by tying elastic cords between adjacent helical coils and by checking sets. But these two methods can not fundamentally solve the above-mentioned problems on the one hand, in addition, make the use of spring become complicated. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a double-helix structure spring, which can solve the above two pro...

AI Technical Summary

Problems solved by technology

The spring usually has the following two problems during use: 1. As long as the force used is large enough, it can be pulled apart completely. It becomes longer and affects the use; 2. During the compression process, the spring in the middle may pop out in the direction of compression, which cannot play the role of compression rebound

However, these two methods cannot fundamentally solve the above problems on the one hand, and on the other hand, make the use of springs more complicated.

Images