Level adjusting device for hoisted steel box girder

The utility model relates to the field of engineering equipment, in particular to a level adjusting device for a hoisted steel box girder. The level adjusting device for the hoisted steel box girder comprises a sand bucket, a piston, a sand discharge pipe, a flange and a lifting lug, wherein the sand bucket is of a barrel-shaped structure with the upper end of being opened and the lower end of being closed, and the sand bucket is filled with sand; the piston consists of a piston pipe and a bearing plate connected with the upper end surface of the piston pipe, and the lower end surface of the piston pipe is connected with a piston bottom plate pressing the top of the sand; and the side wall of the sand bucket is connected with the sand discharge pipe communicated with an inner cavity of the sand bucket, the other end of the sand discharge pipe is connected with the flange, and the lifting lug is welded on the side wall of the sand bucket. In the utility model, the steel box girder is arranged on the bearing pl