Pivot-steering mechanism of quadruped bio-robot

The invention relates to a pivot-steering mechanism of a quadruped bio-robot and belongs to the technical field of bio-robots. The pivot-steering mechanism comprises a front body, a waist steering mechanism, a steering precision compensating mechanism, a back body and side-sway mechanisms, wherein the waist steering mechanism is used for connecting the front body with the back body; and the side-sway mechanisms are used for connecting the bodies with leg parts. According to the pivot-steering mechanism of the quadruped bio-robot, which is disclosed by the invention, the body of the quadruped bio-robot can steer in situ by the side-sway mechanisms being matched with the waist steering mechanism, and the steering angle of the body can be precisely controlled by the steering precision compensating mechanism; and the pivot-steering mechanism has the characteristics of sensitivity in steering, precision in steering angle, good bionic effect and the like.