APPARATUS FOR PREVENTING OPENING OF AN ELEVATOR DOOR CAPABLE OF PREVENTING ARTIFICIAL OPENING OF AN ELEVATOR DOOR IN EMERGENCY

摘要

PURPOSE: An apparatus for preventing opening of an elevator door is provided to obtain a space and to improve work efficiency in installation and maintenance works by constituting a locking device and a control circuit part in one body.;CONSTITUTION: An apparatus for preventing opening of an elevator door comprises a power checking part, a signal input part, a micro computer control part, a signal output part, and a control circuit substrate(33). The power checking part checks whether the power is sent from an elevator control board, or emergency power. The signal input part and the micro computer control part receive opening signals sent from the elevator control board and signals sent from a home position sensor. The signal output part feeds back operation signals to the micro computer control part and outputs to the elevator control board.;COPYRIGHT KIPO 2012