Elevator car and method of preventing accidental movement of the car

Abstract

The invention discloses an elevator car. The elevator car comprises a car gate, a car body and at least two limiting parts arranged in the car body, wherein one limiting part is arranged close to the top part of the car body, and the other limiting part is arranged close to the bottom of the car body; the car body is provided with an exit and entrance port. The elevator car further comprises a driving device for driving the limiting part to stretch out of the exit and entrance port and enter a hall door frame when a hall door and the car gate are opened. When the hall door and the car gate are opened, the driving device drives the limiting part to enter the hall door frame, when the car body moves accidentally, the limiting parts at the upper side and the lower side of the car body can push against the hall door frame and provide a vertical action force for the car body; and besides, the car body only can do up-down lifting movement without horizontal movement under the cooperation of a guide shoe and a guide rail; and the car body can be prevented from moving accidentally under the common action of the limiting parts and the guide shoe, so that the car body can be prevented from shearing motion in the door region, therefore, the use safety of the elevator is completely ensured.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator car and a method for preventing the car from moving unexpectedly. Background technique [0002] As high-rise buildings spring up in people's lives, elevators are used more and more. Correspondingly, elevator safety accidents also occur from time to time. Among them, the shear damage caused by the accidental movement of the car body when the elevator hall door and car door are opened is the most serious. The main reasons for this type of failure are brake failure, traction force reduction or disappearance, etc. At present, the countermeasures for this emergency situation are mainly to brake the elevator traction machine or indirectly control the stop of the car body through the rope clamping device. Since the control of the traction machine and the rope clamping device are all in the machine room, it is not easy to check and operate, and there is a risk of delayed ...

AI Technical Summary

Problems solved by technology

Since both the traction machine and the rope clamping device are controlled in the machine room, it is not easy to check and operate, and there is a danger of delayed operation. Once the elevator car moves unexpectedly, it may cause serious harm to the people entering and leaving the car body. security threat

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