Link mechanism and skateboard frame thereof

The utility model relates to the technical field of coke pushers in the coking industry, in particular to a link mechanism and a sliding plate frame thereof, which comprise a hinge assembly, a sliding plate assembly, a sliding plate assembly, a sliding plate assembly, a sliding plate assembly, a sliding plate assembly, a sliding plate assembly and a sliding plate assembly, and are characterized in that the hinge assembly comprises a connecting plate, a transverse plate arranged below the connecting plate and a tripod fixedly connected to the upper end of the transverse plate; and the sleeving assembly comprises a first bolt and a second bolt, the first bolt is movably arranged in the tripod, the second bolt is movably arranged in the transverse plate, the connecting plate is used for being combined and connected with the tripod, and the first bolt is used for preventing the connecting plate from being separated from the tripod. The tripod is matched with the first bolt, the semicircular design of the bottom o