Movable overhauling device for door and window engineering

The utility model relates to the technical field of door and window engineering maintenance, in particular to a movable maintenance device for door and window engineering. According to the technical scheme, the foot pad comprises a foot pad table, trundles are connected to the bottom of the foot pad table, the two ends of the foot pad table are each fixedly connected with a fixed supporting plate, a movable supporting plate is connected into the fixed supporting plates in a sleeved mode, and a movable cavity for the movable supporting plate to vertically move is formed in the foot pad table; the top end of the movable supporting plate is located in the movable cavity, the front surface of the movable supporting plate is fixedly connected with a connecting shaft, and a guide groove for the connecting shaft to vertically move is formed in the front surface of the foot pad table. The front surface of the foot pad table is vertically and slidably connected with a long rod, the upper surfaces of the two ends of th