Delayed unlocking push-down type emergency door-locking device

A delayed unlocking push-down type emergency door-locking device, disposed at a door board, the door board including a locking side neighboring to a locking groove, comprising:

• a main lock seat, disposed by neighboring to the locking side of the door board, having at least one locking element;
• a secondary lock seat, disposed by being away from the locking side of the door board than the main lock seat;
• a push-down type handle assembly, including:
• a first handle, connected pivotally with the secondary lock seat, configured for being controlled to move pivotally toward an unlocking position along a driving path from a locking position;
• a second handle, connected pivotally with the main lock seat, configured for being controlled to move with the first handle along the driving path;
• wherein, while at the locking position, the at least one locking element is buckled with the locking groove;
• wherein, while at the unlocking position, the at least one locking element is separated from the locking groove;
• and
• a push-down horizontal bar, bridging the first handle and the second handle so as to have the second handle and the first handle to be connected in a coherent manner;
• a stopper, disposed at the secondary lock seat, controlled for moving between a stop position and an avoidance position;
• wherein the stop position is for blocking the driving path, and the avoidance position is for avoiding the driving path;
• a position-sensing module, disposed at the secondary lock seat, configured for sensing whether or not the first handle has been separated from the locking position, and transmitting an alarm-triggering signal if positive;
• and
• a timing electromagnetic traction assembly, disposed at the secondary lock seat, including:
• a timing controller, electrically connected with the position-sensing module, configured for counting time after the unlocking-triggering signal is received in a function-on state, configured for issuing a stopper pulling signal after the counted time reaches a predetermined delay time;
• and
• an electromagnetic traction mechanism, electrically connected with the timing controller and connected with the stopper, for pulling the stopper from the stop position to the avoidance position after the stopper pulling signal is received;
• whereby the second handle moves along the driving path to the unlocking position to delay unlocking.