Vacuum cleaner head

Abstract

The present invention relates to a vacuum cleaner head, which comprises: a rotor for suctioning foreign substances through an opening formed in the outer circumference thereof; and a drum casing having, on the bottom surface thereof, a slit in through the foreign substances are introduced, and encompassing the outside of the rotor, and which suctions the foreign substances through the entire area of the opened slit formed in the bottom surface, and concentrates, at one specific moment, suction at an open surface at which both the opening of the rotor and the slit of the drum casing meet, and thus provides greater suction force in a motor having the same capacity.

1 . A vacuum cleaner head comprising:
 a rotor ( 110 ) including an opening part ( 111 ) having a spiral outer periphery and through which foreign substances are sucked; and   a drum casing ( 120 ) including a hollow interior into which the rotor ( 110 ) is inserted, an open slit ( 121 ) axially formed on a bottom surface to allow foreign substances of a surface to be cleaned to be introduced, and a cover surface ( 127 ) surrounding the rotor ( 110 ),   wherein the slit ( 121 ) exposes an opening surface ( 121   a ) by the opening part ( 111 ) of the rotor ( 110 ) and a blocking surface ( 121   b ) by a blocking part ( 113 ) that blocks foreign substances, so that the opening surface ( 121   a ) and the blocking surface ( 121   b ) are axially arranged simultaneously, and   wherein the opening surface ( 121   a ) of the slit ( 121 ) is axially variable by the rotating rotor ( 110 ).   
     
     
         2 . The vacuum cleaner head of  claim 1 , wherein the rotor ( 110 ) is formed with the opening part ( 111 ) through which foreign substances are sucked in and the blocking part ( 113 ) through which foreign substances are blocked by crossing, which are formed in an intersecting manner, so that the openings ( 111 ) are formed consecutively. 
     
     
         3 . The vacuum cleaner head of  claim 1 , wherein the slit ( 121 ) of the drum casing ( 120 ) sucks in foreign substances only from the opening surface ( 121   a ). 
     
     
         4 . The vacuum cleaner head of  claim 1 , wherein the drum casing ( 120 ) is formed with a discharge hole ( 128 ) on a upper part, the discharge hole ( 128 ) through which foreign substances introduced from the opening surface ( 121   a ) formed simultaneously with the opening part ( 111 ) of the above rotor ( 110 ) and a slit ( 121 ) are discharged. 
     
     
         5 . The vacuum cleaner head of  claim 1 , wherein as the rotor ( 110 ) rotates, the exposed opening surface ( 121   a ) to the slit ( 121 ) moves horizontally and is perpendicular to a direction of movement of the vacuum cleaner head. 
     
     
         6 . The vacuum cleaner head of  claim 1 , further comprising a roller neck ( 130 ) into which the drum casing ( 120 ) is inserted and foreign substances introduced through the opening surface ( 121   a ) in which the opening part ( 111 ) of the rotor ( 110 ) and a slit ( 121 ) are formed simultaneously are guided to an intake pipe ( 134 ) via the drum casing ( 120 ). 
     
     
         7 . The vacuum cleaner head of  claim 6 , wherein the roller neck ( 130 ) includes a side passage ( 132 ) formed longer than the drum casing ( 120 ) through which foreign substances pass. 
     
     
         8 . The vacuum cleaner head of  claim 1 , wherein the rotor ( 110 ) is formed with a hollow interior so that foreign substances move through the through hole ( 112 ) formed on the side. 
     
     
         9 . The vacuum cleaner head of  claim 1 , wherein the blocking part ( 113 ) that blocks foreign substances in the rotor ( 110 ) is formed with a body surface ( 115 ) filled inside, and
 the introduced foreign substance passes through the opening surface ( 121   a ), passes between the body surfaces ( 115 ), and penetrates the opening part ( 111 ) on the opposite surface of the center.