Bridge supporting bracket

The utility model relates to the technical field of supporting brackets, in particular to a bridge supporting bracket which comprises a mounting plate, a fixing plate and a supporting rod, the fixing plate is fixedly mounted at the upper end and the lower end of the mounting plate, and the upper end and the lower end of the supporting rod are fixedly mounted at the right end of the fixing plate and the lower end of the fixing plate respectively. Mounting holes and sleeve rods are symmetrically formed in the two groups of fixing plates, the sleeve rods are arranged in the centers of the upper ends of the mounting plates, movable rods are arranged on the sleeve rods, and mounting blocks are arranged on the movable rods. The movable plate is arranged, the balls are installed on the movable plate, so that equipment such as a cable can be installed on the cable and cannot be rubbed by the ground when the cable needs to be moved, meanwhile, the equipment can be moved through rolling of the balls, the friction force