Automobile seat headrest lock structure

The utility model discloses a headrest lock structure of an automobile seat, and aims to provide the headrest lock structure of the automobile seat, which is simple in structure and convenient to adjust. Comprising a seat framework, a U-shaped limiting plate is connected to the upper end of the seat framework, a limiting hole is formed in the top face of the limiting plate, a headrest connecting rod is detachably connected to the limiting hole, a rotatable locking shaft is connected to the interior of the limiting plate, a receding groove is formed in the locking shaft, a connecting groove is formed in the headrest connecting rod, and the headrest connecting rod is detachably connected with the limiting plate. A plurality of limiting grooves are formed in the side wall of the connecting groove and correspond to the locking shafts, and the receding grooves correspond to the connecting groove. The utility model has the beneficial effects that the structure design is simple, and the operation is convenient; the