Adjustable car wall

The utility model relates to the technical field of construction elevators, in particular to an adjustable car wall which comprises a side wall and a car door, the car door is arranged on the inner side of the front end of the side wall, the rear end of the side wall is fixedly connected with a middle movable wall, and the inner side of the middle movable wall is connected with a connecting inner wall in a sliding mode. The middle car wall can be flexibly adjusted under the action of the middle movable wall and the middle fixed wall, the worm can drive the worm gear to rotate through rotation of the rotary disc, and therefore the two-way screw can rotate, and the middle car wall can be flexibly adjusted through the middle movable wall and the middle fixed wall. And the transmission block can drive the transmission rod to rotate, so that the middle movable wall can move left and right under the jacking action of the transmission rod, the size of the internal space of the building hoist can be adjusted, corresp