An elevator door interlock circuit/safety circuit fault detection device and method
A safety circuit and fault detection technology, applied in elevators, transportation and packaging, elevators and other directions in buildings, can solve problems such as elevator door interlock circuit/safety circuit faults, and achieve the effect of avoiding elevator accidents and reducing workload
Active Publication Date: 2017-07-11
黄一宸
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Problems solved by technology
[0017] In order to solve the problem of faults in the existing elevator door interlock circuit / safety circuit, the present invention provides a fault detection device for the elevator door interlock circuit / safety circuit. Forget to take off the short wiring of the door interlock circuit / safety circuit, and judge whether the door interlock circuit / safety circuit can meet the requirements of the normal operation of the elevator through the voltage value of the door interlock circuit / safety circuit, so as to prevent problems before they happen
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[0043] The elevator door interlock circuit / safety circuit fault detection method and detection device of the present invention will be explained and described in detail below in conjunction with the accompanying drawings.
[0044] Such as figure 1 , 2 As shown, a method for detecting elevator door interlock circuit / safety circuit faults, after the maintenance personnel perform maintenance or annual inspection on the elevator, the elevator operation mode will be changed from the maintenance mode to the normal operation mode, and the detection device of the present invention detects After the elevator recovers from the inspection mode to the detection signal of the running mode, it includes the following steps,
[0045] S1: After the controller receives the detection signal, it controls the voltage detector to detect the voltage value U between terminals A and B respectively. AB , the voltage value U between terminals A and D AD , the voltage value U between terminals A and ...
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The invention provides an elevator door interlock circuit / safety circuit fault detection device and method. The device includes a voltage measuring device, an alarm device, and an operation panel respectively connected to a controller. The voltage measuring device has terminals A, B, and C. Terminal A is connected to the node between the power supply and the safety circuit, terminal B is connected to the node between the safety circuit and the door interlock circuit, and terminal C is connected to the node between the door interlock circuit and the door lock circuit contactor . The present invention judges whether it works within the safe range by judging the voltage value of the elevator door interlock circuit / safety circuit; Early warning, reminding before the fault occurs, plays the role of preventing incipient development. When the voltage value of the door interlock circuit / safety circuit is close to or exceeds the preset safety value, it will alarm and remind the maintenance personnel to overhaul.
Description
technical field [0001] The invention relates to the technical field of elevators, more specifically, relates to the safety and stability of an elevator door interlock circuit / safety circuit, and relates to a fault detection device and method for an elevator door interlock circuit / safety circuit. Background technique [0002] There are constant problems with "sick elevators" across the country every year, and the elevators are trapped and waiting for rescue, which makes the limited number of maintenance personnel tired of coping. Statistics show that among all elevator faults in operation, door interlock faults account for 72% of the total faults, safety circuit faults account for 6%, and the sum of these two items is close to 78%. [0003] With the rapid growth of elevators, the number of elevators in the country is close to 4 million, and hundreds of millions of people use elevators every day. Various vicious incidents of elevator injuries also emerge in endlessly every yea...
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IPC IPC(8): B66B13/14B66B5/00
Inventor 黄一宸
Owner 黄一宸