Safety pressure buffering mechanism for wheel disc of bicycle

The utility model discloses a bicycle wheel disc safety pressure buffering mechanism and relates to the technical field of bicycle accessories, the bicycle wheel disc safety pressure buffering mechanism comprises a frame, a wheel disc body is rotatably arranged on the outer wall of the frame, a fixing frame is fixedly connected to the outer wall of the frame, a limiting rod is welded to one side of the bottom of the fixing frame, and a fixing vertical rod is fixedly arranged on the other side of the bottom of the fixing frame; the bottom end of the fixed vertical rod is in threaded connection with a threaded rod, and the outer wall of the threaded rod is rotationally connected with a connecting frame. The pressure stabilizing wheel is lifted through rotation of the threaded rod, so that the chain can be tensioned after the pressure stabilizing wheel is lifted, the gap between the wheel disc body and the chain is reduced, the chain can be completely and slowly pressed on the wheel disc body, and therefore the