Compression spring assembly

The utility model discloses a compression spring assembly which comprises a pull rod and a compression spring surrounding the pull rod, a clamping disc and a fixing disc are arranged at the two ends of the compression spring respectively, the fixing disc is in threaded connection with an adjusting disc, one side of the adjusting disc directly abuts against one end of the compression spring, and the compression degree of the compression spring is changed by adjusting the adjusting disc in the fixing disc. One end of the pull rod is fixedly connected with a clamping block, the other end of the pull rod is fixedly connected with a base, the clamping block can be matched with the compressed spring so that the clamping block can be clamped to the clamping disc, and the base is located on one side of the brake bottom plate. The adjusting disc acts on the rod body to drive the adjusting disc to rotate in the ring body, so that the adjusting disc gradually gets close to the clamping disc, the distance between the adj