Door lock device capable of automatically switching left and right

The utility model relates to the technical field of door lock devices, in particular to a left-right automatic switching door lock device which comprises a base, an output assembly arranged on the front face of the base and a transmission main shaft arranged on the output assembly, the optical coupling sensing assembly is arranged outside the transmission main shaft, the gear cover is fixed to the front face of the base, and the control circuit board is fixed to the front face of the gear cover. The control circuit board outputs signals, the motor and the gear reduction device act, the output assembly runs and drives the optocoupler induction assembly and the output main shaft to rotate synchronously, when the optocoupler inductor rotates and locks the position, the elastic arm of the optocoupler inductor will be disengaged from the output gear, and the output gear continues to rotate under driving of the motor; and the positioning block on the elastic arm of the optical coupler sensor is clamped into the pos