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Elevator refers to the permanent transportation equipment serving several specific floors in a building, and its car runs on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than15. There is also a step, the pedal is installed on the track and runs continuously, commonly known as escalator or moving sidewalk.

Fixed lifting equipment serving designated floors. The vertical elevator has a car, and the car runs between at least two rows of rigid guide rails with vertical or inclined angles less than15. The size and structure of the carriage are convenient for passengers to enter, exit or load and unload goods. Traditionally, regardless of its driving mode, elevators are regarded as the general term for vertical transportation in buildings.

function

Modern elevators are mainly composed of traction machines (winches), guide rails, counterweight devices and safety devices (such as speed limiters, safety tongs and buffers). ), signal control system, car and hall door, etc.

These components are installed in the shaft and machine room of the building respectively. Usually, steel wire rope is used for friction transmission. The steel wire rope bypasses the traction sheave, and its two ends are respectively connected with the car and the counterweight. The motor drives the traction sheave to lift the car. Elevator requires safety and reliability, high conveying efficiency, accurate leveling and comfortable ride. The basic parameters of the elevator mainly include rated load, number of passengers, rated speed, overall dimensions of the car and shaft type.

use

Passenger elevators, designed for transporting passengers, need perfect safety facilities and certain internal decoration. A freight elevator, mainly designed for transporting goods, is usually accompanied by an elevator. The medical elevator is designed for transporting sickbeds, stretchers and medical vehicles, and has the characteristics of a long and narrow car. Sundry elevator, specially designed for libraries, office buildings and restaurants, is used to transport books, documents and food.

Sightseeing elevator, the car wall is transparent, which is used by passengers for sightseeing. Vehicle lift, used as a lift for loading vehicles. Marine elevator, elevator used on board. Construction elevator, construction maintenance elevator. Other types of elevators, besides the above-mentioned common elevators, also have some special-purpose elevators, such as cold storage elevators, explosion-proof elevator elevators, mine elevators, power station elevators, fire elevators, diagonal elevators, nuclear island elevators, etc.