Blocking mechanism mounted on elevator

The utility model relates to the technical field of three-dimensional goods shelves, in particular to a blocking mechanism installed on a lifting machine, which comprises a goods shelf and a lifting frame. By arranging the blocking locking mechanism and the blocking driving mechanism, when the shuttle vehicle is in the lifting frame, the telescopic cross rods can extend out of the side wall of the base under the action of the reset extension springs at the moment, the two sides of the shuttle vehicle can be blocked and limited through the telescopic cross rods on the two sides, the shuttle vehicle is prevented from sliding out, and the service life of the shuttle vehicle is prolonged. When the shuttle vehicle runs in the goods shelf, shifting cross rods on the two sides can push a second rear connecting plate through a driving motor, so that a telescopic cross rod is retracted into a base, the shuttle vehicle can conveniently run into the goods shelf, and when the shuttle vehicle runs in the goods shelf, the