Height adjusting device for movable dock leveler

The utility model discloses a height adjusting device for a mobile dock leveler, which belongs to the technical field of mobile dock levelers, and comprises a supporting plate, the bottom of the supporting plate is fixedly connected with two supporting seats, the inner walls of the two supporting seats are both rotatably connected with supporting rods, the two supporting rods are both sleeved with mounting plates rotatably connected with the supporting rods, and the mounting plates are fixedly connected with the supporting seats. And the bottoms of the two mounting plates are each rotationally connected with two rolling wheels, electric push rods fixedly connected with the inner walls of the two supporting seats are inserted into the inner walls of the two supporting seats in a penetrating mode, and one ends of the two electric push rods are each fixedly connected with a toothed plate. According to the dock leveler, the hydraulic push rod and the supporting plate are in sliding connection, so that the bottom