Movable constructional column dustpan hopper material opening

The utility model belongs to the technical field of building components, and particularly relates to a movable constructional column dustpan hopper material opening which comprises a back plate, a side plate and an inserting plate structure, the back plate is connected with a constructional column formwork system, and the back plate is fixed to the side plate and is perpendicular to the side plate. The side plates are fan-shaped, clamping grooves are formed in the central angles of the side plates, arc-shaped grooves are formed in the positions, close to the circumferences, of the side plates, and pre-pressing circular grooves are formed in the positions, close to the back plate, in the arc-shaped grooves. The inserting plate structure comprises an inserting plate, round steel is arranged at the top of the inserting plate, a bottom shaft is arranged at the bottom of the inserting plate, and the inserting plate structure is arranged in the clamping groove through the bottom shaft and connected with the side pl