Corner protecting structure for photovoltaic assembly frame

The invention provides a corner protecting structure for a photovoltaic assembly frame. The corner protecting structure comprises a protective frame and two protective plates, the protective frame isin an L shape, the two protective plates are symmetrically arranged on the inner wall of the protective frame, grooves are formed in the protective frame and internally provided with adjusting plates,sliding grooves are formed in the inner walls of the grooves, sliding blocks are arranged on the adjusting plates, the adjusting plates are slidably arranged in the sliding grooves through the sliding blocks, push rods are fixedly arranged on the inner surfaces of the adjusting plates, slide grooves are formed in the push rods, sliding columns are slidably arranged in the slide grooves, first connecting rods and second connecting rods are further arranged in the grooves, one ends of the first connecting rods are hinged to the inner walls of the grooves, the other ends of the first connectingrods are fixedly connected