Wheelchair head rest mechanism

The utility model relates to a wheelchair head rest mechanism, including the head rest of adjustable shape, adjustable installation width's mounting and connect the two connecting piece, contain anchor clamps in the mounting, the main pretext of connecting piece is leaned on the weldment, is connected combination piece I and connect the weldment and form, and the head rest weldment is connected with the head rest and is equipped with and connects combination piece II, connects the weldment and is connected with the mounting and is equipped with and connect combination piece III, connects combination piece II, connects combination piece I and connect and make up piece III and be parallel to each other just the connection piece of interval arrangement by the polylith respectively and form just three group links and make up the piece and connect in proper order, the connected mode of adjacent two sets of connections combination piece does: the connection piece of a set of connection combination piece is worn the