Telescopic reinforcing back arris of aluminum alloy formwork for reinforcing large-section frame column

The utility model discloses an aluminum alloy template telescopic reinforcing back ridge for reinforcing a large-section frame column, and relates to the technical field of reinforcing back ridges, the aluminum alloy template telescopic reinforcing back ridge comprises an aluminum template and a frame column body, the side of the aluminum template is provided with the frame column body, and the surface of the aluminum template on the side of the frame column body is provided with a mounting column. The outer wall of the mounting column is sleeved with a sleeve frame, a positioning hole is formed in the upper surface of the sleeve frame, a back edge frame is movably mounted on the inner wall of the sleeve frame, a positioning block is fixedly arranged at the end, in the sleeve frame, of the back edge frame, the outer wall of the end of the mounting column is sleeved with a gasket, and a limiting ring is fixedly mounted at the edge of the side of the gasket. A sealing ring adheres to the surface of the gasket o