| 摘要 |
<p>Disclosed is an opening and closing device for a safety door of a construction lift. An embodiment of the present invention relates to an opening and closing device for a safety door of a construction lift to open/close a safety door installed at each floor of a building to communicate a delivery device of a construction lift with the inside of the building. The opening and closing device for a safety door of a construction lift includes: an operation plate protruding to a direction of the safety door in a state that the delivery device is braked, and automatically performing protruding and returning operation according to the presence of the brake of the delivery device to be returned to an original position in a state that the brake of the delivery device is released; and a movable pin elastically supported in a direction of the operation plate, pushed to a rear direction by the operation plate in a state that the delivery device is braked to allow a manual opening operation of the safety door, installed at a direction of the safety door of each floor of a building to be returned to an original position through an elastic restoring force to block a manual opening operation of the safety door in a state that brake of the delivery device is released.</p> |
