Today, with the development of science and technology, spring has become a very important hardware accessory in our life. Different products use different springs. The longest used springs can be roughly divided into: tension spring, torsion spring, compression spring, disc spring and leaf spring. The following describes the features and applications of a very practical tension spring:

Many different products or hooks are used to ensure the source of tension of the tension spring. The working principle of the tension spring is opposite to that of the compression spring. The tension spring acts in reverse when it is extended or pulled apart. When we pull away the coil hanging devices on both sides of the tension spring, the iron wire in the middle of the tension spring will try to pull them back together.

The tension spring is usually under a certain extension tension, even without any load. This initial tension determines that the tightness of the tension spring will not be changed without any load. Within the allowable limit, the greater the extension, the greater the rebound strength.