Lifting hook telescoping mechanism and stacking machine

The utility model relates to the technical field of stacking machines, in particular to a lifting hook telescoping mechanism and a stacking machine, comprising a lifting hook body which is mounted on a telescopic arm and is connected with a carrier body through the telescopic arm; the sliding seat is arranged on the lifting hook body, and a cleaning plate is arranged on the sliding seat; the oil storage tank is arranged on the cleaning plate, and a through hole is formed between the oil storage tank and the cleaning plate; the cleaning device has the beneficial effects that the elastic connecting block is arranged on the side wall of the sliding seat, the elastic connecting block is driven by the sliding seat to move along the side wall of the supporting frame, a cleaning plate arranged between the connecting block and the supporting frame can clean the side wall of the supporting frame while moving, and meanwhile, an oil storage tank arranged above the connecting block can clean the side wall of the supporti