Automatic maintaining and repairing operation equipment for elevator

Abstract

The elevator can be prevented from exceeding the stop position and therefore the security can be increased. The task is realized by an elevator used automatic maintenance running equipment which comprises the following components: a control device which controls the rotation of the windlass to activate the elevator cage; a distance measuring device which measures the distance from the current position of the elevator cage to the destination position in random storey in each storey of the hoist trunk according to the rotary speed of the windlass; a detected body which is arranged at each storey of the hoist trunk; and a position detector which detects the position of the detected body, wherein, when the distance measuring device measures out the distance to the destination position the elevator cage is stopped, and when the distance measuring device can not measure out the distance to the destination position the position detector detects the detected body which is arranged at the position in one storey in the running direction of the elevator cage from the current position of the elevator cage thereby stopping the running of the elevator cage.

Description

technical field [0001] The invention relates to an elevator automatic maintenance operation equipment suitable for maintenance in the lift passage of the elevator. Background technique [0002] In the prior art, when performing maintenance in the lift passage of the elevator, a maintenance person needs to repeatedly enter the top of the elevator car from the elevator lobby, or walk down from the top of the elevator car to the elevator lobby, or walk into the elevator car. inside the car. At this time, as the automatic maintenance and operation equipment for the elevator used, for example, Japanese Patent Application Laid-Open No. 2003-2553 of Patent Document 1 proposes a scheme, which is installed on the rotating shaft of the hoist. The distance measuring instrument is used to calculate the running distance by the rotational speed of the rotating shaft, and the running distance of the elevator car is counted by the distance measuring instrument to stop the elevator car. ...

AI Technical Summary

Problems solved by technology

[0004] However, in the automatic maintenance and operation equipment for elevators proposed in Japanese Patent Application Laid-Open No. 2003-2553 of the above-mentioned Patent Document 1, since the distance measuring instrument used in it calculates the traveling distance based on the rotational speed of the hoisting machine rotating shaft , and count the travel distance of the elevator car, so when the phenomenon of missing pulses in the counting occurs due to the influence of electrical noise, the elevator car will not stop at the destination position (the specified stop position), but When stopping at an exceeding position beyond the destination position (predetermined stopping position)

For this reason, when the maintenance personnel who carry out the maintenance work in the hoistway of the elevator enter the top of the elevator car from the elevator hall, due to the excessive distance between the floor of the elevator hall and the top surface of the elevator car, there are maintenance personnel The problem of accidentally falling on the elevator car or falling from the elevator car into the hoistway

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