Gap one-way adjusting mechanism for air pressure disc brake

The invention discloses a clearance one-way adjusting mechanism for an air pressure disc brake, a driving push rod is mounted on a driving gear, a driven push rod is mounted on a driven gear, the driving gear is meshed with the driven gear through an intermediate gear, and both the driving push rod and the driven push rod are mounted on a push plate; the driving push rod is connected with the driving rotating shaft, the one-way clutch bearing is mounted on the driving rotating shaft, and the adjusting sleeve is mounted outside; the thrust arm is fixedly connected with a cylindrical pin, and the cylindrical pin is arranged in a corresponding open groove of the adjusting sleeve. The installation size, structure and installation mode of an original brake are not changed; through the application of the structure, the reliability of the clearance compensation effect of the adjusting mechanism assembly of the air pressure disc brake assembly can be improved, and the adjusting mechanism assembly can provide a more s