Recyclable adjustable concrete square column angle bead device

An adjustable concrete square column corner protection device capable of being recycled belongs to the field of building construction and comprises an L-shaped corner protection plate wrapping the external corner of the lower portion of a concrete square column, waist tabs bonded to the upper end and the lower end of the L-shaped corner protection plate, and a circle of clamping belts connected between the waist tabs located at the same height in a penetrating mode and connected end to end. The fixing bolts are connected to the joints of the adjacent clamping belts in a penetrating manner; the upper end and the lower end of the waist loop are bonded with the L-shaped corner protection plate, and a penetrating gap is reserved between the middle of the waist loop and the L-shaped corner protection plate; and the clamping belt is connected in the penetrating gap of the waist loop in a penetrating manner. The device solves the problems that an existing device is prone to polluting a concrete square column, cannot