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homepassengerd
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Oprettet 18. March 2020 kl. 03:55
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Elevator landing doors and car doors are generally composed

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(Except for triangular unlocking). The outer surface of the automatic landing door shall not have a recessed or protruding portion greater than 3mm. Hinged doors are less commonly used in China and more commonly used in residential ladders abroad. Mid-split doors are mainly used in passenger elevators, side-opening doors are more commonly used in freight elevators and hospital bed elevators, and vertical sliding doors are mainly used in sundries and large-scale car elevators. The edges of these recessed or protruding parts should be chamfered in both directions.

The lower part of the door is equipped with sliders and inserted into the chute of the ground sill. In the opening direction of the horizontal sliding door, when 150N manpower (without tools) is applied to one of the most unfavorable points, the gap between the door leaves and between the door leaves and the uprights and lintels must not be greater than 30mm.05m.

The excess of the net entrance width of landing doors on either side of the car's net entrance width should not be greater than 0. In order to make the door have certain mechanical strength and Elevator Ceilings Manufacturers rigidity, the back of the door is equipped with reinforcing ribs. In order to reduce the noise generated during door movement, the back of the door panel is coated with anti-vibration material. The door is generally made of thin steel plate. Elevator landing doors and car doors are generally composed of doors, rail frames, pulleys, sliders, door frames, sills and other components.The elevator door system can be divided into two types, the landing door at the entrance of the hoistway is the landing door, and the entrance door of the car is the car door.

There are two types of door guide rails: flat steel and C-shaped folding guide rails. The freight elevator is generally made of cast iron sills, and the passenger elevators can be made of aluminum or copper sills. The door is connected to the guide rail by pulleys. The landing door and the car door can be divided into a central opening door, a side opening door,



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