Movable working platform for bridge flange plate

The utility model discloses a movable working platform of a bridge flange plate, which comprises the bridge flange plate, two groups of tracks are assembled on the surface of the bridge flange plate, and the connecting plate can be controlled to keep fixed track movement through the matching of pulleys and the tracks and the action of the connecting plate, so that the working platform at the lower end is driven to keep fixed track movement. The working platform can be attached to the lower side face of a bridge flange plate, maintenance, new construction and the like can be conveniently conducted on the bridge flange plate, through the action of the adsorption structure, when the working platform moves to the position where work is needed, the adsorption structure is started, the position of the connecting plate is fixed, and therefore the position of the working platform is fixed; and through the effect of the escalator, the escalator is fixed to the connecting frame and used for getting on and off workers,