The utility model relates to the field of
human engineering chairs, and discloses a supporting arm mechanism of a
human engineering chair, which comprises a supporting plate, a mounting groove is arranged on the top surface of the supporting plate, a
pressure sensor is fixed in the mounting groove, a fixing groove is arranged on one side of the supporting plate, a
single chip microcomputer is fixed in the fixing groove, and a
pressure sensor is fixed in the
single chip microcomputer. A touch screen is fixed to one side of the supporting plate, a supporting cylinder is arranged below the supporting plate, a hydraulic rod is fixed to the interior of the supporting cylinder, a containing groove is formed in one side of the supporting plate, an
infrared scanner is fixed to the interior of the containing groove, and the
pressure sensor, the touch screen, the hydraulic rod and the
infrared scanner are all electrically connected with a single-
chip microcomputer. According to the
engineering chair, the height can be automatically adjusted and controlled through the touch screen according to personal habits or comfort so as to reach the optimal height, and the height of the
engineering chair can be rapidly and automatically adjusted, so that the time and the
physical strength of a user are saved, and the comfort of the user is improved.