The main function of a pin-fixed spring is to ensure that the spring can return to its original state after being subjected to external force. The pin ensures that the spring can be smoothly reset after being deformed by external force through its positioning, positioning and connection. Specifically, the functions of a pin-fixed spring include the following aspects:
Reset function: When the spring is deformed by external force, the pin can ensure that the spring returns to its original state after the external force is removed. This feature is widely used in various tools and equipment. For example, the hinges of building doors are often equipped with reset springs to ensure that the door can automatically return to its original position.
Connection and positioning: Pins are often used for assembly positioning in machinery, and can also be used to connect and release overload shear connections in safety devices. This function of the pin allows the spring to be accurately installed in the required position and remain stable.
Safety function: In some applications, pin-fixed springs also have safety functions. For example, in automatic umbrellas, automatic pencils and other devices, reset springs ensure that the device can automatically reset after use, improving the safety and convenience of use.
Application example: In curtain wall structures, curtain wall spring pins are used to connect the beams of hidden frame curtain walls. Through closed-cavity profiles and the construction process of installing columns first and then beams, the advantages of simple structure, less processing and convenient construction are achieved.





