Flank full-movable door for cold storage car

The invention belongs to the technical field of cold storage cars, and particularly relates to a flank full-movable door for a cold storage car, which comprises a compartment body; an upper rail and a lower rail are arranged in the compartment body, are respectively fastened on the inner top wall and the inner bottom wall of the compartment body through bolts, are arranged in parallel and are symmetrically arranged; a fixed door, a folding door and a single door are sequentially connected between the upper rail and the lower rail in a sliding mode from outside to inside and connected through heavy hinges; inserting rod locking pieces are fixedly connected into the fixed door, the folding door and the single door, and the two ends of the inserting rod locking pieces are clamped and fixed to the inner wall of the upper rail and the inner wall of the lower rail correspondingly; pulley seats A are fastened to the inner wall of the folding door through bolts, and the pulley seats A are symmetrically arranged and s