Large-size steel box girder convenient to adjust

The utility model discloses a large-volume steel box girder convenient to adjust, and relates to the technical field of steel box girders, the large-volume steel box girder convenient to adjust comprises a fixed box, a sliding groove is formed in the fixed box, a sliding block is connected in the sliding groove, a limiting block is connected outside the sliding block, a screw hole is formed in the sliding block, an adjusting box is connected to the bottom of the sliding block, and the adjusting box is connected to the bottom of the sliding block. And a fixing block is installed at the top of the sliding block and in the fixing box, a screw rod is connected to the interior of the fixing block and the interior of the screw hole, and a rotating rod is installed at the top of the screw rod. The fixing box, the adjusting box, the sliding grooves and the sliding blocks are arranged, the adjusting box can be conveniently driven to move through cooperation of the sliding blocks and the sliding grooves, in this way, t