Patent ID: 9192274
Filing Date: 2015-11-24
Classification: A47L

Abstract:
1. A floor wiping mechanism mounted at a bottom side of a self-propelled floor cleaner body, comprising: a frame comprising an opening located in the center thereof, at least two upright connecting portions disposed at two opposite lateral sides thereof and connected to said self-propelled floor cleaner body, four accommodation chambers respectively located at the two opposite lateral sides in an opposite manner, and a notch located in each said accommodation chamber in communication with said opening; two rotating shafts mounted in said opening at two opposite sides in a parallel manner, said rotating shafts having respective opposite ends thereof respectively inserted through said notches and positioned in the respective said accommodation chambers in such a manner that each said rotating shaft has a bottom surface thereof disposed below the lowest part of a bottom side of said frame and, the extending direction of said rotating shafts is perpendicular to the moving direction of said self-propelled floor cleaner body; a wiping cloth made in the form of an endless belt and wound round said rotating shafts; four collars respectively mounted on said rotating shafts at opposing ends thereof and disposed outside said wiping cloth, the protruding height of each said collar relative to the respective said rotating shaft is larger than or equal to the thickness of said wiping cloth; and four pushing devices respectively mounted in said accommodation chambers of said frame, each said pushing device comprising a sliding block and an elastic member, said sliding block having one end thereof stopped against one end of one respective said rotating shaft, said elastic members being adapted to provide an elastic restoring force for forcing said rotating shafts toward the outside of said frame to maintain the tension of said wiping cloth.