Automatic overturning hopper controlled by gravitational potential energy

The utility model relates to an automatic overturning hopper controlled by gravitational potential energy. The automatic overturning hopper comprises a fixed lifting rope, a telescopic lifting rope, a hopper body, a driving mechanism, an upper fixed pulley, a lower fixed pulley and a driving pulley. The driving mechanism is arranged on the hopper and is close to a discharge hole of the hopper; the upper fixed pulley and the lower fixed pulley are oppositely arranged on the two sides of the driving mechanism; the driving mechanism is connected with the driving pulley; one end of the telescopic lifting rope sequentially bypasses the upper fixed pulley, the driving pulley and the lower fixed pulley and then is connected with the driving mechanism, and the other end is connected with one end of the fixed lifting rope to form a lifting point; the end, away from the lifting point, of the fixed lifting rope is connected with the hopper, and the connecting point is located at the end, away from the discharging port,