Cleaning device suitable for pipelines of different specifications

The utility model discloses a cleaning device for pipelines of different specifications. The cleaning device comprises a bottom plate, a lifting air cylinder, moving wheels, a control case, a shell, a rotating motor, a sliding support, a rotating cylinder, a pushing air cylinder, a pushing block, a connecting frame, a rotating rod, a telescopic rod, a moving plate, a strip-shaped through hole, a limiting sliding rail block, a telescopic air cylinder, a scraping plate and an extension spring. When a pushing air cylinder is started, a pushing block moves and drives a rotating rod to rotate, the rotating rod and a telescopic rod rotate at the same time, moving plates slide on the inner wall of a limiting sliding rail block, the two moving plates can be gradually away from each other and drive a telescopic air cylinder and the scraping plates to move, and the distance between the two scraping plates is increased; and when the two moving plates are close to each other, the position between the scraping plates beco