Headrest structure, seat and vehicle

The utility model relates to a headrest structure, a seat and a vehicle, the headrest structure comprises a headrest framework, a rear shell, a sound box and a front shell, and the headrest framework is used for being connected with a backrest of the seat; a groove is formed in the rear shell; the sound box is arranged in the groove; the front shell is connected to the headrest framework and located at an opening of the groove. A plurality of clamping pieces are arranged on one of the front shell and the rear shell at intervals; a plurality of clamping grooves are formed in the other one of the front shell and the rear shell at intervals; the multiple clamping pieces correspond to the multiple clamping grooves in a one-to-one mode, and at least part of one clamping piece is located in one clamping groove and connected with one clamping groove in a clamped mode. According to the utility model, the dismounting process of the front shell and the rear shell can be simplified, so that the working efficiency is imp