Elevator door lock linkage device

The invention discloses an elevator door lock linkage device which comprises a landing door lock mechanism, a lock hook mechanism, a movable striking bow mechanism and a control system. The landing door lock mechanism is provided with a door lock base, a lock body is arranged on the door lock base, a pressure spring mechanism, an electric switch and a door holder mechanism are arranged on the lock body, the lock hook mechanism is arranged on a landing door leaf and comprises a lock hook support, a lock hook and a touch panel, a contact of the electric switch and the touch panel are closed and the electric switch is connected when the lock body is hooked by the lock hook, the movable striking bow mechanism comprises a movable striking bow support, two connecting plates and a striking bow, one end of each connecting plate is fixed on the striking bow through a shaft, the other end of each connecting plate is fixed on the striking bow support through a shaft, the two connecting plates can rotate, a spring is arr