Less block terminal of area

The utility model discloses a less block terminal of area, include: first guide rail, second guide rail, first drum, slider, pulley, safety rope, return spring, fixed block, couple, ring, fixed rope,first guide rail, second guide rail, first drum are all fixed on the wall, first drum side is equipped with the opening, and the slider is located first drum, and the box passes through pulley and guide rail sliding connection, and safety rope one end is connected with the box, and the safety rope other end passes the opening to be connected with the slider, and the size of slider is greater thanthe opening size, the return spring lower extreme is connected with the box, and return spring is connected with the fixed block upper end, and the fixed block is fixed on the wall of first guide railand second guide rail top, the fixed upper end of restricting is connected with the box lower extreme, and fixed rope lower extreme is connected with the ring, and the couple is fixed on the wall offirst guide rail and second