What does the elevator mean?

Elevator (vertical elevator) is a kind of transportation equipment for vertically transporting pedestrians or goods.

Elevators serve buildings on specific floors. The vertical elevator has a car, which runs between at least two rows of vertical or rigid guide rails with inclination less than15, which is convenient for passengers to enter, exit or load and unload goods. According to the speed, it can be divided into low-speed elevators (below 4 meters per second), fast elevators (4 to 12 meters per second) and high-speed elevators (above 12 meters per second).