1results about "Liquid springs" patented technology

A chassis device (100), a movable platform (1000), a shock absorber (80) and a material access device (900), the chassis device (100) comprises a frame (10), a link mechanism (20) and a first auxiliary wheel assembly (30), the link mechanism (20) comprises a first link (21) and a second link (22), the first link (21) is hinged to the frame (10) through a first hinge point (A1), and the first link (21) is hinged to the first auxiliary wheel assembly (30) through a second hinge point (A2). The second connecting rod (22) is hinged to the rack (10) through a third hinge point (A3), and the second connecting rod (22) is hinged to the first auxiliary wheel assembly (30) through a fourth hinge point (A4). The connecting line of the first hinge point (A1) and the second hinge point (A2) is parallel or approximately parallel to the connecting line of the third hinge point (A3) and the fourth hinge point (A4), and the connecting line of the first hinge point (A1) and the third hinge point (A3) is parallel or approximately parallel to the connecting line of the second hinge point (A2) and the fourth hinge point (A4).