Bending-resistant cable sheath with bending protection

The utility model relates to the technical field of cable production, in particular to a bending-resistant cable sheath with bending protection. The power transmission device comprises a power transmission device body and a connecting device installed on the outer surface of the power transmission device body, the power transmission device body comprises an outer skin body, inserting holes are formed in the inner side of the outer skin body, the inserting holes are of hollow structures, inserting columns are arranged in the inserting holes, and supporting discs are installed on the side faces of the inserting columns; a plurality of supporting rods are installed on the left side and the right side of the outer surface of the outer skin body respectively, supporting cylinders are installed on the side faces of the supporting rods, supporting holes are formed in the inner sides of the supporting cylinders, and the supporting rods are in sliding connection with the supporting holes. According to the utility mode