| 摘要 |
<p>A link mechanism includes a first swing rod (1), a second swing rod (2), a first connecting rod (3) and a second connecting rod (4) in the same plane. One end of the first swing rod (1) is hinged with one end of the second swing rod (2) through a first pin shaft (81) so as to form a first hinge joint (a). One end of the first connecting rod (3) is hinged on a middle part of the first swing rod (1), and one end of the second connecting rod (4) is hinged on a middle part of the second swing rod (2). The other end of the first connecting rod (3) is hinged with the other end of the second connecting rod (4) through a second pin shaft (82) so as to form a second hinge joint (b). In the present invention, a double-herringbone plane link mechanism is formed by two swing rods and two connecting rods, so as to achieve relatively large displacement between the other end of the first swing rod and the other end of the second swing rod through the relatively small displacement between the first hinge joint and the second hinge joint, where the support ratio of two displacements are not constant, so that the mechanism is more flexible and has better applicability than current stroke adjusting mechanism amplified with fixed multiplying power.</p> |
