Steel box girder transporting vehicle

The utility model relates to the technical field of girder transporting vehicles, in particular to a steel box girder transporting vehicle. According to the technical scheme, the device comprises a beam vehicle supporting plate, the top of the beam vehicle supporting plate is fixedly connected with a concentric-square-shaped frame plate, the inner wall of the concentric-square-shaped frame plate is slidably connected with an uncovered box, the top of the uncovered box is slidably connected with a carrying plate, and the front face and the back face of the uncovered box are each fixedly connected with a plurality of second springs; the end, away from the uncovered box, of the second spring is fixedly connected with the inner wall of the concentric-square-shaped frame plate, two fixing sleeves are fixedly connected to the inner wall of the bottom of the uncovered box, two fixing plates are fixedly connected to the bottom of the carrying plate, an inserting rod is fixedly connected between the two fixing plates,