Reset spring selection and function description

According to the nature of the force, the spring can be divided into precision spring, tension spring, compression spring, torsion spring, bending spring, coil spring, spring deformation in the external force, remove the external force, the spring can restore the state. Many tools and equipment are reset using the nature of precision springs. For example, many buildings on the hinges are equipped with a reset spring when people come in and out, the door will automatically reset. People also use this feature made of automatic umbrella, automatic pencil and other supplies, very convenient. In addition, a variety of buttons and buttons and ultimately reset the spring.