1. Elevator: permanent transportation equipment serving a certain floor of a building, with its car running on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than 15 degrees from the vertical.

2. Escalator: It consists of a chain conveyor with special structure and two belt conveyors with special structure. There is a circular movable ladder as a fixed electric drive device to transport passengers up and down between different floors of the building.

Second, the principle is different.

1. Elevator: Both ends of the traction rope are connected with the car and the counterweight respectively, and wound on the traction sheave and the guide sheave. After the reducer changes speed, the traction motor drives the traction wheel to rotate. The traction generated by the friction between the traction rope and the traction wheel realizes the lifting movement of the car and the counterweight, and achieves the purpose of transportation.

2. Escalator: the stairs move horizontally at the passenger entrance (convenient for passengers to climb stairs), and then gradually form stairs; The stairs gradually disappeared near the exit and moved horizontally again. These movements are realized by the cascade main wheel and auxiliary wheel moving along different cascade guide rails respectively.

Third, the application is different.

1, elevator:

(1) passenger elevator, designed to transport passengers, needs perfect safety facilities and certain automobile interiors.

(2) Freight elevators are mainly designed for transporting goods, and are usually equipped with elevators.

(3) Medical elevators are used to transport sickbeds, stretchers and medical vehicles. The car is long and narrow.

(4) The sundry elevator is specially designed for libraries, office buildings and hotels to transport books, documents and food.

(5) Sightseeing elevator, with transparent car wall, used for passenger sightseeing elevator.

(6) Vehicle elevator, used as an elevator for carrying vehicles.

(7) marine elevators and elevators used on ships.

(8) Elevator for construction, construction and maintenance.

(9) Other types of elevators, in addition to the above-mentioned common elevators, include some special elevators, such as refrigerated elevators, explosion-proof elevator elevators, mine elevators, power station elevators, fire elevators, inclined elevators and nuclear island elevators.

2. Escalator: It can be widely used in stations, docks, shopping malls, airports, subways and other places where people are concentrated. 1900, a stepped escalator exhibited at the Paris International Expo was the prototype of a modern escalator. Since then, escalators have developed rapidly in various countries.

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