With supporting anti -drop sleeve of theftproof bolt

The utility model discloses a with supporting anti -drop sleeve of theftproof bolt belongs to electric power fortune and examines equipment technical field, including the sleeve body, the one end of the sleeve body special -shaped trepanning that the bolt matches that is equipped with and prevents burglary, the other end of sleeve body is equipped with along the length direction protrusion of sleeve body and the boss that matches with the handle, is equipped with the shrinkage pool on the circumference outer wall of boss, and the embedded magnetic iron block that is equipped with of shrinkagepool is equipped with the spring between and the boss, and the spring is located in the shrinkage pool and the both ends of spring are connected respectively in shrinkage pool diapire and magnetic iron block. When the sleeve uses with the handle cooperation, can effectively increase the effort between sleeve and the handle through the magnetic force between magnetic iron block and the handle. Simultaneously, when the boss