Abstract: A biological identification safe deposit box includes a lock. The lock includes a first elastic lock catch, a first connecting rod, a second elastic lock catch, a second connecting rod, a transmission rotating disc, a driving motor, and a motor controller. A movable groove is defined in a center of the transmission rotating disc. A movable end of the driving motor extends into the movable groove. A driving block is disposed on a side surface of the movable end of the driving motor. A semi-annular adjusting groove, with respect to the driving block, is defined on an inner wall of the movable groove. An idle stroke exists when the driving block moves in the semi-annular adjusting groove. The lock further includes an emergency unlocking assembly. The emergency unlocking assembly drives the transmission rotating disc to rotate. The emergency unlocking assembly and the transmission rotating disc are separately disposed.

Abstract: A smart door lock assembly includes a lock cylinder, a lock cylinder mounting block, a driving motor, and a driving control board. A driving gear is arranged on a movable end of the driving motor. The lock cylinder passes through and is mounted in the lock cylinder mounting block. A driven gear coaxial with the lock cylinder is arranged on the lock cylinder mounting block. The driven gear is driven by the driving gear. The driving control board determines whether an external input unlocking command is right and controls the driving motor to unlock the smart door lock assembly when the external input unlocking command is right. The driving motor has a virtual position in a process of driving the driving gear.