A lead screw latch mechanism is provided and includes a gate check rotatable to assume locked and unlocked positions, a housing defining lock and unlock grooves and a key container. The key container includes a boss and is biased away from the gate check and selectively movable toward the gate check through the housing with the gate check assuming the locked position whereby the boss, having been received in the lock groove, is prevented from exiting the lock groove and the unlocked position whereby the boss, having been received in the lock groove, is permitted to exit the lock groove. The lead screw latch mechanism further includes an elastic assembly which, with the boss exited from the lock groove, drives key container rotation toward a rotational position at which the boss is aligned with the unlock groove.