Tool for mounting and dismounting

The utility model provides a tool for mounting and dismounting, which comprises a connecting part, a supporting part and an operation adjusting part, the operation adjusting part comprises a cylindrical piece and a core rod, the cylindrical piece is fixedly connected with the supporting part and the connecting part, the core rod is connected with the supporting part, the supporting part comprises a force bearing arm, and the force bearing arm is fixedly connected with the core rod. The stress arms are obliquely arranged relative to the cylindrical part, the vertical position of the core rod relative to the cylindrical part can be adjusted, so that the inclination angle of the stress arms relative to the cylindrical part is changed, the number of the stress arms is at least two, and the stress arms are symmetrically arranged relative to the cylindrical part. The tool can provide convenient, safe and accurate mounting and dismounting operation for some heavy equipment and devices which are mounted or dismounted