Rotary type dusting device

Abstract

A rotary type dusting device, detachably assembled to an automatic cleaning machine, the rotary type dusting device includes a connecting base, a rotary disc, an affixing element, and a dusting element. The connecting base is driven by the cleaning machine to rotate and includes a plurality of interference portions and mounting portions for mounting bristles. The rotary disc is detachably connected to a bottom of the connecting base and is rotatable in conjunction with the connecting base. The rotary disc includes a plurality of positioning portions spaced apart from each other for correspondingly engaging the interference portions. The affixing element is fixed onto a bottom of the rotary disc for attaching the dusting element, so that the dusting element is rotatable in conjunction with the rotary disc and the bristles to carry out dusting and sweeping work.

What is claimed is: 
     
         1 . A rotary type dusting device, detachably assembled to an automatic cleaning machine, the rotary type dusting device comprising:
 a connecting base pivotably connected to a bottom of the automatic cleaning machine so that the connecting base is capable of being driven to rotate by the automatic cleaning machine, the connecting base comprising a plurality of interference portions spaced apart from each other;   a rotary disc detachably connected to a bottom of the connecting base, the rotary disc being coaxial to the connecting base and being rotatable in conjunction with the connecting base, the rotary disc comprising a plurality of positioning portions spaced apart from each other for correspondingly engaging the plurality of interference portions;   an affixing element having an upper surface fixed onto a bottom of the rotary disc, and an affixing portion at a bottom of the affixing element; and   a dusting element comprising a first layer and a second layer, the first layer attached to the affixing portion so that the dusting element is rotatable in conjunction with the rotary disc to enable the second layer to dust a surface to be cleaned.   
     
     
         2 . The rotary type dusting device of  claim 1 , wherein the plurality of interference portions of the connecting base are recessed from a periphery of the connecting base, and the positioning portions protrude upward from an upper surface of the rotary disc for engaging the interference portions. 
     
     
         3 . The rotary type dusting device of  claim 1 , wherein the connecting base further comprises a plurality of mounting portions arranged around the connecting base, each said mounting portion mounting a bundle of bristles, the bundle of bristles extending out of a periphery of the dusting element for contact with the surface to be cleaned so as to carry out sweeping. 
     
     
         4 . The rotary type dusting device of  claim 3 , wherein the rotary disc further comprises a plurality of restraining portions, each said restraining portion configured to fit between any two adjacent bundle of bristles near a periphery of the rotary disc and corresponding to the positioning portion in position for restraining transverse displacement of each said bundle of bristles, so as to prevent the bundle of bristles from being deformed by rotation of the connecting base. 
     
     
         5 . The rotary type dusting device of  claim 4 , wherein each said restraining portion protrudes upward from the upper surface of the rotary disc and has a thickness that is equal to or larger than a thickness of the bundle of bristles. 
     
     
         6 . The rotary type dusting device of  claim 1 , wherein the rotary disc has an area equal to or less than that of the dusting element such that the bottom of the rotary disc is entirely covered by the dusting element. 
     
     
         7 . The rotary type dusting device of  claim 1 , wherein the affixing portion of the affixing element has a hook-and-loop structure for attaching the dusting element to the rotary disc, and the second layer of the dusting element is made of non-woven fabric. 
     
     
         8 . The rotary type dusting device of  claim 1 , wherein the dusting element has multiple curved portions being continuously curved and connected to form a periphery of the dusting element for improving efficiency of dusting. 
     
     
         9 . The rotary type dusting device of  claim 1 , wherein the automatic cleaning machine are equipped with a plurality of the rotary type dusting devices that are peripherally arranged around the bottom of the automatic cleaning machine and disposed in front of and behind at least a wheel at the bottom of the automatic cleaning machine. 
     
     
         10 . The rotary type dusting device of  claim 1 , wherein a rear of the bottom of the automatic cleaning machine is equipped with a cleaning cloth for wiping or mopping the surface to be cleaned.