As the person pulls down on the rope the object rises. Since the pulley stays in one place this is called a fixed pulley. The fixed pulley only changes the direction of the force but cannot multiply the force. The pulley at the top of a flag pole is a fixed pulley. As a person pulls down on one end of the rope hanging over the pulley the other end of the rope with the flag attached to it goes up.
Venetian blinds operate with a fixed pulley.
You pull down on the cord and the blind goes up. There is also a moveable pulley. In this type, the pulley itself is attached to the object so when the object moves, the pulley moves. This kind of pulley increases force as well as direction. Both pulleys help us lift heavy objects but a moveable pulley makes the lifting easier because it increases the effort.