A vertically sliding door of an elevator that is safe to use

Abstract

The invention discloses a safe vertical sliding door of an elevator for people to use. The safe vertical sliding door is provided with a safe touch panel device, wherein the safe touch panel device comprises a travel switch which is arranged on a door panel and used for sending a stop signal to a driving electrical motor which is used for controlling the door panel. A first swing arm and a second swing arm which are parallel to each other are hinged to the bottom part of the door panel, wherein the first swing arm is provided with a triggering part which is matched with the travel switch. A safe touch panel which suspends below the bottom part of the door panel by the first swing arm and the second swing arm and a transmission part which is hinged to the door panel is provided with a force application end for pulling and lifting the safe touch panel. A transmission wheel is coupled to the transmission part and a guiding part which is provided with a driving inclined plane is used for triggering the transmission part to pull the safe touch panel. The safe vertical sliding door is capable of preventing the door panel falling due to the breakage of suspension chains or transmission chains and hurting people or things due to the fall of the door panel.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a vertically sliding door of an elevator that is safe to use. Background technique [0002] The sliding elevator doors used in the prior art are divided into horizontal sliding doors and vertical sliding doors according to different opening forms. Vertical sliding doors are often used in large freight elevators because they hardly occupy the space of the hoistway and have the largest door opening width. [0003] The door leaves of vertical sliding doors include single leaf, double leaf and triple leaf, etc., among which double leaf is more common. A car door is provided, the car door includes an upper door arranged on the upper part and a lower door arranged on the lower part, the car door is provided with a driving device, the car door is provided with a red line protection device, and the driving device includes a control unit and a motor unit, the control unit is connected ...

AI Technical Summary

Problems solved by technology

[0006] The suspension chain and transmission chain can use steel wire rope or chain. If steel wire rope is used, the steel wire rope will be easily worn and broken after long-term use; if chain is used, after long-term use, rust or fatigue fracture will occur due to poor lubrication, which will become a safety hazard.

[0007] In addition, in the vertical sliding door of the elevator, the door panel moves up and down. When people or goods enter and exit the elevator, there is a risk of being pinched by the falling door panel. In the prior art, infrared detection devices are usually used to observe the running path of the door panel. Whether there are obstacles in the middle, for example, the utility model whose authorized notification number is CN203295003U discloses an elevator safety light curtain with improved light beam distribution, including several light curtain assemblies arranged on two opposite car doors of the elevator, each light curtain assembly includes For light curtain transmitters and light curtain receivers that match each other, the beam distribution density on the upper part of the car door is smaller than that on the lower part of the car door, and the light curtain transmitters and light curtain receivers belonging to the same group of light curtain components are arranged at the same height

[0008] Although the use of infrared detection devices can avoid pinching, but the reliability is not good, and there are still potential safety hazards

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