Jacking adjusting device with quick replacement function

The utility model discloses a jacking adjusting device with a quick replacement function, which comprises a bottom plate and a scraper blade, and is characterized in that a copper sleeve and a copper sleeve limiting plate are arranged above the bottom plate, the scraper blade is arranged on the left side of the copper sleeve, the right side of the copper sleeve limiting plate is in threaded connection with a pre-tightening bolt, and the pre-tightening bolt is in threaded connection with the right side of the copper sleeve limiting plate. The right side of the pre-tightening bolt is in threaded connection with a nut, an adjusting knob is arranged at the right end of the pre-tightening bolt, an instrument is fixedly installed at the end of the adjusting knob and divided into an inner cavity and an instrument panel, an air bag is arranged on the left side of the nut, and a pipeline is fixedly installed between the inner cavity and the air bag. A rotating disc is arranged on the inner side of the instrument panel