Aluminum formwork top plate supporting device

The utility model belongs to the technical field of building construction, and discloses an aluminum formwork top plate supporting device which comprises a main supporting plate, a side plate is movably connected to the right end of the main supporting plate in a clamped mode, a limiting buckle is fixedly connected to the middle of the right side of the side plate, and a rotary knob is movably connected to the middle of the lower end of the side plate. A fixing pin is movably clamped to the right end of the bottom of the main supporting plate, and the structures of the two ends of the longitudinal middle axial face of the main supporting plate are completely consistent. Through the cooperation of the main supporting plate, the side plates, the limiting buckles, the fixing pins, the rotary knobs and the like, the device achieves the effect of high applicability, when the aluminum formwork is in a plate shape, the rotary knobs are rotated to adjust the side plates to be horizontal, then the rotary knobs are rot