Dust-collecting auxiliary device for vacuum cleaner

Abstract

A dust-collecting auxiliary device is equipped on a vacuum cleaner that comprises at least a motor, a fan, a dust-collecting chamber, a suction inlet, and a driving device. Said dust-collecting auxiliary device includes at least one air pipe of which an air inlet at one end is fixed in a fan container of said fan and an air outlet is placed at the lower surface of the bottom cover of the vacuum cleaner in to the neighboring-front the suction inlet, at least two wings wherein each wing with one end fixed at the one side of the suction inlet, while the other end thereof extended forward and outward to give an increasing distance from another wing.

1 . A dust-collecting auxiliary device for a vacuum cleaner, which comprises at least a motor, a fan, a dust-collecting chamber, a suction inlet, wherein the fan is driven by the motor to generate suction which collects the external air, dust and trash at the suction inlet and collects said dust and trash in the dust collection, and a driving device to propel the vacuum cleaner, comprising:
 at least one air pipe of which an air inlet at one end thereof is fixed in a fan container enclosed said fan and an air outlet at the opposite end is placed at the lower surface of the bottom cover of the vacuum cleaner adjacent to and with a predetermined distance from the suction inlet, and   at least two wings, each with one end fixed at the one side of the suction inlet, while the other end thereof extended forward and outward to give an increasing distance from another wing.   
   
   
       2 . The dust-collecting auxiliary device as claimed in  claim 1 , wherein the at least two wings define a dust-collecting division having a width greater than that of the suction inlet. 
   
   
       3 . The dust-collecting auxiliary device as claimed in  claim 2 , wherein the outlet of each air pipe is positioned in the dust-collecting division. 
   
   
       4 . The dust-collecting auxiliary device as claimed in  claim 3 , wherein a nozzle is provided on the lower surface of the bottom cover to accommodate each said outlet of the at least one air pipe and has a nozzle hole at the lower end thereof to permit air in the air pipe being emitted therethrough. 
   
   
       5 . The dust-collecting auxiliary device as claimed in  claim 4 , wherein the nozzle is arranged inclined toward the suction inlet. 
   
   
       6 . The dust-collecting auxiliary device as claimed in  claim 1 , wherein the at least one air pipe is a flexible tube. 
   
   
       7 . The dust-collecting auxiliary device as claimed in  claim 1 , wherein the wings are flexible sheets.