Power device

The utility model relates to a power device which solves the technical problems that in an existing natural orifice surgical robot, steel wires are crossed in the moving process due to a wire driving structure enabling the steel wires to be wound or oriented, and the steel wires are loosened due to the fact that a winch rotates in the transporting or carrying process of the robot. The device comprises an upper plate, a lower plate, a guide frame, four fixing columns, four rotating columns and four winch assemblies, the lower plate is fixedly connected with the middles of the four fixing columns, the upper plate is fixedly connected with the tops of the four fixing columns, the guide frame is fixedly connected with the lower plate, the upper ends of the rotating columns are rotatably connected with the upper plate, and the lower ends of the rotating columns are rotatably connected with the winch assemblies. The lower end of the rotary column is rotationally connected with the lower plate; the guide frame is pr