High-stability connecting mechanism for construction site scaffold

The utility model discloses a high-stability connecting mechanism for a scaffold on a construction site. The device comprises a connecting seat and a supporting pipe, the outer surface of the connecting seat is fixedly connected with a connecting sleeve; a circular groove is formed in the outer surface of the connecting sleeve; a through hole is formed in the center of the circular groove; a synchronous buckle is arranged on the inner surface of the circular groove; a connecting column is arranged in the connecting sleeve; the outer surface of the connecting column is fixedly connected with apositioning baffle plate; a fixed check ring is fixedly connected to the outer surface of the supporting pipe, a fixed sleeve is fixed to one side of the fixed check ring, a movable sleeve is arrangedon the side, away from the fixed check ring, of the fixed sleeve, a stabilizing ring is fixedly connected to the outer surface of one end of the movable sleeve, and reinforcing ribs are installed onthe outer surface of the st