High-strength box girder formwork

The utility model discloses a high-strength box girder formwork which comprises an outer formwork body, an inner formwork body is arranged on the inner side of the outer formwork body, a top plate is arranged at the bottom end of the inner formwork body, an adjusting screw rod is fixed to the bottom end of the top plate, the outer portion of the adjusting screw rod is connected with a rotating cylinder through threads, and a base is arranged at the bottom end of the rotating cylinder. The base is fixed to the surface of the inner side of the outer mold frame, and balls are arranged at the bottom ends of the rotary drums and embedded in the end face of the interior of the base. Through the designed adjusting screw rod and the rotating cylinder, the rotating cylinder and the adjusting screw rod can be subjected to threaded adjustment by rotating the rotating cylinder, the height of the position is changed, adjustment is achieved, meanwhile, in the rotating process, the adjusting screw rod cannot rotate, abrasio