Vacuum cleaner suction port assembly and vacuum cleaner

Abstract

A vacuum cleaner suction port assembly has an upper and a lower housings, a first and a second suction ports formed on the lower housing, at least one upper opening pierced in the upper housing, allowing an external air to be drawn therethrough by the suction force of the first and the second suction ports, and at least one lower opening formed on the lower housing, the lower opening located between the first and the second suction ports and fluidly communicating with the upper opening such that the air drawn through the upper opening is guided to between the first and the second suction ports to scatter the dusts therefrom. Accordingly, cleaning efficiency increases not only at both sides, but also at the center of the suction port assembly.

1 . A suction port assembly, comprising: 
 upper and a lower housings;    a first and a second suction ports formed on the lower housing;    at least one upper opening in the upper housing, allowing external air to be drawn there through by a suction force applied to the first and the second suction ports; and    at least one lower opening formed on the lower housing, the lower opening located between the first and the second suction ports and fluidly communicating with the upper opening such that the air drawn through the upper opening is guided to between the first and the second suction ports to scatter the dusts therefrom.    
     
     
         2 . The suction port assembly of  claim 1 , further comprising a dust channel formed on the lower housing in a stepwise configuration with respect to the bottom of the lower housing, the dust channel connecting the first and the second suction ports, wherein the lower opening is located in the dust channel.  
     
     
         3 . The suction port assembly of  claim 2 , further comprising a rib formed on the dust channel, dividing the dust channel into a first dust channel connected to the first suction port and a second dust channel connected to the second suction port wherein the lower opening is formed in the first and the second dust channels, respectively.  
     
     
         4 . The suction port assembly of  claim 1 , further comprising first and second fluid passages formed on the upper and the lower housings, each being fluidly communicated with the first and the second suction ports, such that the air drawn through the first and the second suction ports is guided there through.  
     
     
         5 . The suction port assembly of  claim 4 , wherein the upper housing comprises: 
 a fluid passage cover forming the top of the first and the second fluid passages, and engaged with the lower housing; and    an upper cover positioned above the fluid passage cover, and engaged with the lower housing.    
     
     
         6 . The suction port assembly of  claim 5 , wherein the fluid passage cover is formed of a transparent material.  
     
     
         7 . A vacuum cleaner comprising: 
 a cleaner body housing a vacuum source therein;    an extension fluid passage, a first end of which is connected to the cleaner body in a fluidly communicating manner with the vacuum source; and    a suction port assembly connected to a second end of the extension fluid passage, and wherein    the suction port assembly comprises, 
 upper and a lower housing;  
 a first and a second suction ports formed on the lower housing;  
 at least one upper opening in the upper housing, allowing an external air to be drawn there through by the suction force of the first and the second suction ports.  
   
     
     
         8 . The vacuum cleaner of  claim 7 , further comprising a dust channel formed on the lower housing in a stepwise configuration with respect to the bottom of the lower housing, the dust channel connecting the first and the second suction ports, wherein the lower opening is located in the dust channel.  
     
     
         9 . The vacuum cleaner of  claim 7 , wherein the upper housing comprises: 
 a fluid passage cover forming the top of the first and the second fluid passages, and engaged with the lower housing; and    an upper cover positioned above the fluid passage cover, and engaged with the lower housing.