Dust removal structure utilizing airflowwhirls, and dust collector

Abstract

The present application discloses a dust removal structure ( 1 ) utilizing airflow whirls, and a dust collector. The dust removal structure ( 1 ) utilizing airflow whirls comprises an outer barrel ( 11 ), a first internal barrel ( 12 ), a second internal barrel ( 13 ), a third internal barrel ( 14 ) arranged at one end of the second internal barrel ( 13 ), and a whirl barrel ( 15 ) arranged at another end of the second internal barrel ( 13 ), a first airflow whirl chamber ( 101 ) is formed between the outer barrel ( 11 ) and the first internal barrel ( 12 ), a second airflow whirl chamber ( 201 ) is formed between the first internal barrel ( 12 ) and the second internal barrel ( 13 ), an interior of the whirl barrel ( 15 ) is provided with a whirl chamber ( 1501 ), and an interior of the second internal barrel ( 13 ) and an interior of the third internal barrel ( 14 ) together form a third airflow whirl chamber ( 301 ).

What is claimed is: 
     
         1 . A dust removal structure utilizing airflow whirls, comprising an outer barrel, a first internal barrel arranged inside the outer barrel, a second internal barrel arranged inside the first internal barrel, a third internal barrel arranged at one end of the second internal barrel, and a whirl barrel arranged at another end of the second internal barrel, wherein the whirl barrel is configured to communicate with a filter, a first airflow whirl chamber is formed between the outer barrel and the first internal barrel, a second airflow whirl chamber is formed between the first internal barrel and the second internal barrel, an interior of the whirl barrel is provided with a whirl chamber, and an interior of the second internal barrel and an interior of the third internal barrel together form a third airflow whirl chamber, wherein the outer barrel is provided with a first air inlet communicating with the first airflow whirl chamber, the first internal barrel is provided with a second air inlet communicating with the first airflow whirl chamber and the second airflow whirl chamber, the whirl chamber and the second airflow whirl chamber communicate with each other through a second air outlet, and the whirl chamber and the third airflow whirl chamber communicate with each other through a third air inlet. 
     
     
         2 . The dust removal structure utilizing airflow whirls according to  claim 1 , wherein, the outer barrel comprises an outer cylinder portion and a base portion connected to one end of the outer cylinder portion, a periphery of the third internal barrel is sleeved with a dust collection barrel, and one end of the dust collection barrel away from the second internal barrel is connected to the base portion, wherein the dust collection barrel, the base portion, and the outer cylinder portion are enclosed to form a first dust collection chamber, and the dust collection barrel, the third internal barrel and the base portion form a third dust collection chamber. 
     
     
         3 . The dust removal structure utilizing airflow whirls according to  claim 2 , wherein, one end of the third internal barrel away from the second internal barrel is provided with a dust baffle plate, and a dust outlet communicating with the third dust collection chamber is provided at the third internal barrel near the dust baffle plate. 
     
     
         4 . The dust removal structure utilizing airflow whirls according to  claim 1 , wherein, the first internal barrel comprises a plurality of grilles arranged in an annular array, and an air inlet gap is provided between adjacent two of the grilles, and a plurality of the air inlet gaps constitutes the second air inlet. 
     
     
         5 . The dust removal structure utilizing airflow whirls according to  claim 1 , wherein, the whirl barrel comprises a whirl cylinder portion, an air guiding portion arranged at the whirl cylinder portion, and a whirl bottom, the whirl bottom is connected to one end of the whirl cylinder portion near the first internal barrel, and the second air outlet is provided on the whirl bottom. 
     
     
         6 . The dust removal structure utilizing airflow whirls according to  claim 5 , wherein, one end of the second internal barrel near the third internal barrel is radially extended to form an annular protruded portion, and the first internal barrel, the second internal barrel, the annular protruded portion and the whirl bottom are enclosed to form the second airflow whirl chamber. 
     
     
         7 . The dust removal structure utilizing airflow whirls according to  claim 6 , wherein, the annular protruded portion is provided with a positioning hole, and the first internal barrel is provided with a positioning column configured to insert into the positioning hole. 
     
     
         8 . The dust removal structure utilizing airflow whirls according to  claim 5 , wherein, the air guiding portion comprises a plurality of diverging blades circumferentially arranged and configured to make airflow flow from an edge of the whirl cylinder portion toward a center of the whirl cylinder portion. 
     
     
         9 . The dust removal structure utilizing airflow whirls according to  claim 8 , wherein, the whirl barrel further comprises a central support portion, and both ends of the diverging blades are connected to an inner wall of the whirl cylinder portion and the central support portion respectively. 
     
     
         10 . The dust removal structure utilizing airflow whirls according to  claim 9 , wherein, the central support portion comprises an annular portion and an internal guiding cylinder formed by extending an inner ring of the annular portion toward an axial direction of the third airflow whirl chamber, and the diverging blades are connected to the annular portion and arranged at a periphery of the internal guiding cylinder. 
     
     
         11 . The dust removal structure utilizing airflow whirls according to  claim 1 , wherein, the first internal barrel and the whirl barrel are integrally formed. 
     
     
         12 . The dust removal structure utilizing airflow whirls according to  claim 1 , wherein, the second internal barrel and the third internal barrel are integrally formed. 
     
     
         13 . The dust removal structure utilizing airflow whirls according to  claim 12 , wherein, the second internal barrel and the third internal barrel jointly form a conical barrel, and a bottom end of the conical barrel is arranged near the whirl chamber. 
     
     
         14 . A dust collector, comprising the dust removal structure utilizing airflow whirls according to  claim 1 , and further comprising a motor configured to generate airflow, the filter provided at one end of the whirl barrel away from the third internal barrel, and a suction head assembly configured to clean ground. 
     
     
         15 . The dust collector according to  claim 14 , wherein, the suction head assembly is provided with a side brush configured to clean dead corners.