The invention relates to equipment for a bridge. The equipment comprises an electricity uniting shell and an electricity uniting head; a supporting foot is arranged at the bottom of the electricity uniting shell and is arranged in an inclined manner, and therefore stability is improved; a foot pad is further arranged below the supporting foot, a hollow cavity is formed in the electricity uniting shell, a containing groove located above the hollow cavity is formed in the electricity uniting shell, a motor is fixedly installed in the top end of the containing groove, a rotating shaft is rotationally installed in the hollow cavity through a rotating bearing, a ring barrel is fixedly installed on the rotating shaft, and a cable is wound around the outer ring of the ring barrel; and the cable is fixedly connected with the electricity uniting head, the upper end of the rotating shaft extends upwards into the containing groove and is fixedly connected with the motor, a rotating tooth-shaped wheel is fixedly installed at the position, in the containing groove, of the rotating shaft, a sliding cavity is formed at the position, above the containing groove, in the electricity uniting shell, and a sliding plate is installed in the sliding cavity in a sliding manner. The equipment is convenient to use, stable in running, safe and reliable.