Elevator safety control system, safety control method and safety control device

Abstract

The invention discloses an elevator safety control system, a safety control method and a safety control device. The elevator includes an elevator car, the elevator car includes a car wall, and the car wall is a retractable structure. The system includes: a position detection device, which is arranged on On the elevator car, it is used to obtain the position information of the elevator car in the hoistway; the control device is electrically connected with the position detection device to obtain the position information and generate corresponding car control instructions; the telescopic device is arranged on the car wall It is connected to the control device for controlling the car wall to perform corresponding telescopic actions based on the car control instructions. By designing the car wall of the elevator car as a retractable elevator car wall, and controlling the elevator car wall to actively perform the telescopic action according to the actual running position of the elevator car, it is no longer necessary to set additional hoistway space as a buffer and reduce the hoistway construction cost. As well as the cost of the elevator; on the other hand, it can effectively protect the personal safety of the elevator car maintenance personnel and improve the safety of the elevator.

Description

technical field [0001] The invention relates to the technical field of elevator control, in particular to an elevator safety control system, an elevator safety control method and an elevator safety control device. Background technique [0002] Elevators are currently the only indoor means of transportation commonly used in buildings. [0003] The elevator runs up and down in the hoistway under the action of the traction machine to reach the different floors of the current building. In the actual application process, the elevator may run at a height higher than the highest floor due to different fault conditions, that is, an abnormal situation of topping, and the above abnormal situation may cause great trouble to passengers, even for the personal safety of passengers pose a threat. [0004] In the prior art, in order to avoid the occurrence of the above-mentioned abnormal situation, the above-mentioned abnormality and injury are avoided by arranging a limit switch in the h...

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Problems solved by technology

[0005] However, in the actual application process, since the setting of the limit switch and the safety distance will inevitably occupy additional space in the well, it is necessary to set an additional top floor height in the well, so in the current situation where urban space resources are very precious and scarce, the number of buildings is increased. cost

[0006] On the other hand, when accidents occur in the elevator, such as the failure of the limit switch, the breakage of the wire rope, and the unbalanced counterweight car causing the car to jump to the top, there is no relatively safe solution at present. Personal safety brings security threats, as well as the risk of damage to equipment on the elevator car roof

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