Compression spring for elevator

The pressure spring for the elevator relates to the technical field of springs and comprises a spring body and two abutting plates and further comprises a telescopic assembly, the telescopic assembly is arranged in an axis cavity of the spring body in a penetrating mode, and the two abutting plates are detachably connected to the two ends of the telescopic assembly in the axial direction respectively. The spring body is connected to the abutting plate in an axial limiting mode, and the telescopic assembly is provided with a driving assembly used for driving the telescopic assembly to stretch or retract. The pre-tightening device has the effect that the pre-tightening operation before the compression spring is installed is more labor-saving. 本申请涉及一种电梯用压簧，涉及弹簧的技术领域，包括弹簧本体和两抵接板，还包括伸缩组件，所述伸缩组件穿设于所述弹簧本体的轴心空腔处，两抵接板分别可拆卸连接于所述伸缩组件沿轴向的两端，所述弹簧本体轴向限位连接于所述抵接板，所述伸缩组件安装有用于驱动所述伸缩组件伸/缩的驱动组件。本申请具有压簧安装前的预紧操作更加省力的效果。