H-shaped steel beam turning-over device for construction and building

The invention provides an H-shaped steel beam turning-over device for construction and building and belongs to the technical field of H-shaped steel machining. The H-shaped steel beam turning-over device is used for solving the technical problems that an existing H-shaped steel beam turning-over device is low in turning-over efficiency, wastes time and labor, and is high in hidden danger. The H-shaped steel beam turning-over device comprises an operation table and a fixing frame. A hydraulic box is arranged in the operation table. A supporting mechanism is arranged in the hydraulic box. An H-shaped steel beam is placed on the supporting mechanism. Two symmetrical adjusting mechanisms are arranged in the fixing frame. The adjusting mechanisms are provided with infrared laser lamps correspondingly. A turning-over mechanism and a rotating shaft are arranged at the two ends of the fixing frame in a rotating manner correspondingly. The turning-over mechanism and the rotating shaft are provided with electric triang