Scraping strip assembly, floor brush and cleaning device

The utility model discloses a scraping strip assembly, a floor brush and a cleaning device. The scraping strip assembly comprises a base body used for being installed at the front end of the cleaning device; the scraping strip is arranged at the front end of the base body so that the scraping strip can be located on the front side of a cleaning piece of the cleaning device when the base body is installed on the cleaning device. The driving mechanism is arranged on the base body, the driving mechanism is in transmission fit with the scraping strip, and the driving mechanism is used for driving the scraping strip to move towards the to-be-cleaned face in the preset moving direction; wherein the preset moving direction intersects with the to-be-cleaned surface; and the elastic reset piece is arranged on the base body, is in transmission fit with the scraping strip and is used for driving the scraping strip to move in the direction away from the to-be-cleaned face. By means of the mode, dirt left on the to-be-cle