Special-shaped anti-rotation self-locking thread sleeve

The utility model discloses a special-shaped anti-rotation self-locking screw sleeve, and relates to the technical field of automobile high-voltage fuses, the special-shaped anti-rotation self-locking screw sleeve comprises a screw sleeve body and a self-locking assembly, the outer side of the screw sleeve body is provided with an external thread, the outer surface of the screw sleeve body is provided with a limiting groove, the limiting groove is internally provided with a positioning hole, and the self-locking assembly is arranged in the positioning hole. The self-locking assembly used for limiting is connected to the interior of the limiting groove, the self-locking assembly comprises a limiting block, a reamed hole and a plug pin, the reamed hole is formed in the inner side of the limiting block, the plug pin is connected to the interior of the positioning hole, and an anti-pressing assembly used for protection is arranged at the bottom end of the threaded sleeve body. The special-shaped anti-rotation sel