The utility model relates to a semi-automatic electronic deadbolt lock, comprising a lock body and a door opener, wherein a mechanical lock core is fixedly arranged in the lock body, a lock shaft
assembly for controlling a lock head to open or lock a door is connected between the mechanical lock core and the door opener, the lock body comprises a lock body seat
assembly and a
handle assembly, the mechanical lock core is fixed on the lock body seat assembly, the
handle assembly is rotatably connected to the lock body seat assembly relative to the mechanical lock core; a
clutch sleeve which is transmission-matched with the lock shaft assembly is rotatably connected to the lock body seat assembly, the
handle assembly is transmission-connected to the
clutch sleeve through a transmission mechanism; an electronic deadbolt assembly is also arranged on the lock body seat assembly, and when the electronic deadbolt assembly is separated or engaged with the
clutch sleeve, the rotation of the handle assembly is released or locked; when the door lock is in an unlocked state, the handle assembly can rotate relative to the mechanical lock core to open the lock head, and there is no need for an
electronic structure to drive the lock shaft assembly to rotate, so the
power consumption demand of the door lock can be reduced, thereby reducing the volume of a
battery pack.