Old person's function chair based on human engineering

The utility model relates to a function seat based on human engineering indicates an old person's function chair based on human engineering who is fit for most crowd and is particularly useful for old crowd especially, and is main including the back of the chair, seat support and the base installed in proper order, still includes lift elbow pad mechanism, centre gripping supporting mechanism and controlling means, the back of the chair is established through outer jacket layer cover and form outside profile on back of the chair skeleton, and outer jacket layer main part is inner concave arc -shaped structure, inside device, head massage device and the back of the chair adjusting device of mainly massaging including the back, and the seat support mainly comprises with the folding adjusting device of extension shank massage device, and lift elbow pad mechanism installs on the left and right sides of seat support, and the centre gripping supporting mechanism is installed in the lift elbow pad mechanism on seat s