Supporting and protecting device for outer wall of weathered wall body of ancient cultural relic

The utility model discloses an ancient cultural relic weathered wall outer wall supporting and protecting device which comprises an outer wall, supporting plates are arranged on the two sides of the outer wall, a fixing frame is arranged above the supporting plates, threaded holes are formed in the surfaces of the two sides of the fixing frame in a penetrating mode, threaded rods are in threaded connection with the interiors of the threaded holes, a clamping plate is arranged at one end of each threaded rod, and the clamping plates are connected with the supporting plates. A positioning block is arranged on the surface of one side of the clamping plate, and one end of the positioning block extends into a positioning groove formed in the surface of one side of the supporting plate. The fixing frame is placed above the supporting plate, the clamping plate at one end of the screw rod is made to move by rotating the crank at one end of the screw rod, and when the positioning block on the surface of one side of th