Bridge steel structure coating auxiliary device

The utility model belongs to the technical field of coating auxiliary devices. The bridge steel structure coating auxiliary device comprises a base, the bridge comprises a bridge body, a platform lorry is arranged above the bridge body. The upper end of the flat car is fixedly connected with a controller; a moving device is arranged between the lower end of the flat car and the bridge body; firstservo motors are fixedly connected to the two sides of the flat car correspondingly. The ends, away from each other, of the two first servo motors are fixedly connected with first telescopic rods correspondingly. Connecting plates are fixedly connected to the ends, away from each other, of the two first telescopic rods, second telescopic rods are arranged at the lower ends of the connecting plates, side plates are fixedly connected to the bottom ends of the second telescopic rods, transverse plates are fixedly connected to the bottom ends of the side plates, and second servo motors and fixingcolumns are fixed to the u