Seat unlocking mechanism, seat and vehicle

The utility model provides a seat unlocking mechanism, a seat and a vehicle, and belongs to the technical field of automobile spare parts, the seat unlocking mechanism comprises a sliding rail assembly, a handle and a sound insulation pad, the sliding rail assembly comprises a fixed rail, a movable rail in sliding connection with the fixed rail, a locking mechanism and an unlocking pin, the locking mechanism is connected between the fixed rail and the movable rail, and the unlocking pin is connected with the handle. The movable rail is limited to slide along the fixed rail; the unlocking pin is arranged on the movable rail, is connected with the locking mechanism and is used for releasing the limiting of the locking mechanism on the movable rail; the middle of the handle is hinged to the movable rail, the handle comprises a pressing end and a handle end, and the pressing end is located above the unlocking pin; in an unlocking state, the handle end is lifted upwards, and the pressing end presses the unlocking