The butterfly spring is small in size and light in weight. It is widely used in cache, vibration avoidance and other places. It is widely used in stamping die, valve clutch standard parts and crude oil and geological environment engineering machinery equipment.

In convex spiral torsion spring because the two sides of the smaller spring ring can be placed in the middle of the ring, so can get a great amount of deformation. For example, there are some medium convex automobile brake system elastic yellow, usually always in the situation of tight, open the car gate valve, elastic yellow repair deformation, promote the brake system to carry out the brake system on the car. The hair clipper also uses the feature of convex helical spring, which can get great deformation and ground stress in reasonable indoor space.

The function of cochlear coil coil spring is similar to that of cone coil spring. It can bear large kinetic energy of digestion and absorption, because it is difficult to manufacture, and it is only used for special cases limited by empty questions. The number of spring coil of cochlear coil is large, the deformation is large, can store great kinetic energy, and is mainly used in clamping elastic yellow and energy storage technology components of instrument equipment.

Torsion spring can be used plate spring steel sheet or double pieces of accumulation, its caching and shock absorption performance is good, especially the multi torsion spring shock absorption performance is strong, the key is used in the suspension equipment of automobiles, large tractors and railway vehicles.