Human body auxiliary hand device

The invention discloses a human body auxiliary hand device and belongs to the field of human engineering. In order to overcome the defect that the human body is insufficient in capacity when performing complex operation, the waist and the head of the human body are connected through a revolute pair and a hinge pair by means of a set of rod pieces, an auxiliary hand can be added to the double hands of the human body, control over the auxiliary hand is achieved by means of movement of the head, and the double hands of the human body are helped to complete complex labor and life operation. According to the technical scheme, one end of the set of rod pieces mutually connected through the revolute pair and the hinge pair is fixed to the waist of the human body, and the other operation end of the set of rod pieces is fixedly connected with the head of the human body; the operation finger end of the auxiliary hand is controlled through the movement of the head to move according to the track needed by auxiliary operation, and supplementary and auxiliary operation on the functions of the double hands of the human body is achieved. The human body auxiliary hand device has the following advantages that (1) the efficacy of the double hands of the human body can be improved, and the operation functions of the human body can be broadened; (2) the human body auxiliary hand device can replace the human hands to complete certain hazardous operation; (3) the human body auxiliary hand device is simple in structure, small in size, low in weight and convenient to operate.