Headrest regulator

The utility model relates to the fitting device field of a chair, in particular to a headrest adjustor which comprises a backrest connecting seat, a headrest connecting rod, a rotating shaft, an end closure and a latch pin; the backrest of the connecting chair and the headrest form a chair, the head resting direction of the headrest is opposite to the sliding direction of a latch, the position of the headrest can be adjusted oppositely to the head resting direction according to the needs of the user, the headrest drives the headrest connecting rod to rotate; the latch of the latch pin is latched in any one-way sliding tooth in a one-way tooth groove according to the needs of the user, thereby adjusting the headrest to the proper angle position, because the head resting direction is in the reverse direction where the latch slides relatively to the one-way sliding tooth, the position is firm, and the adjustor does not slide; the adjustor can adjust the headrest angle effectively and has the advantages of firm p