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A protection system for elevator maintenance personnel and elevator

A protection system, technology of elevators, applied in the field of elevators

Active Publication Date: 2022-07-19
YUNGTAY ELEVATOR EQUIP CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a protection system for elevator maintenance personnel and an elevator for buildings whose roof pit depth and / or roof height cannot meet the requirements of the safe-haven space. The system can reliably ensure the safety of the maintenance personnel. Reduce the requirements for civil engineering, save construction costs, reduce resource utilization, and have great economic value

Method used

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  • A protection system for elevator maintenance personnel and elevator

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. Wait.

[0020] see figure 1 , adding the following elevator prohibition mechanisms and functions to the existing elevator control system:

[0021] S1: An overhaul limit switch is added at both ends of the hoistway 10. Of course, an overhaul limit switch can also be added only at one end of the hoistway 10. The maintenance limit switch can adopt a structure well known to those skilled in the art.

[0022] The maintenance limit switch is divided into an upper maintenance limit switch 21 and a lower maintenance limit switch 22 . O...

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PUM

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Abstract

The invention discloses a protection system for elevator maintenance personnel, comprising an elevator prohibition mechanism arranged at the upper end or / and the lower end of a hoistway, which prohibits the elevator car from continuing to move forward and emergency stops the elevator car. The elevator prohibition mechanism is selected from one or a combination of any two or more of the maintenance limit switch, the maintenance limit switch, and the maintenance mechanical blocking device. When the elevator goes to the end of the hoistway for inspection, the control system prohibits the elevator from continuing to move forward when the car moves to the inspection limit switch. When the car moves to the mechanical blocking device, the movement of the car is mechanically blocked, which reliably protects the safety of maintenance personnel. The invention can reliably ensure the safety of maintenance personnel when the elevator pit or top escape space is insufficient, reduce the requirements for construction civil works, and save construction costs.

Description

Technical field: [0001] The invention relates to the technical field of elevators, in particular to a protection system for elevator maintenance personnel and an elevator. [0002] technical background: [0003] During the daily operation of the elevator, maintenance is required every two weeks. During maintenance, maintenance personnel inevitably have to stand on the top of the car to move the elevator car, or move the elevator car to the bottom pit. In order to ensure the safety of maintenance personnel and avoid being squeezed by the car, there is a necessary safety space for the pit and the top floor. [0004] However, when some buildings are installed with elevators or replaced with new ones, due to the fact that the buildings have already been completed, they cannot meet the requirements of current regulations. There are practical difficulties in deepening the depth of the pit and increasing the height of the top floor. A safe and feasible solution is provided for sce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B5/16
CPCB66B5/005B66B5/16
Inventor 涂长祖
Owner YUNGTAY ELEVATOR EQUIP CHINA