Dust suction apparatus, dust collection base station, and dust collection system

Abstract

Provided in the present disclosure are a dust suction apparatus, a dust collection base station, and a dust collection system, which relate to the field of cleaning devices. The dust suction apparatus includes a dust cup which has a bottom surface and includes: an inner cavity for accommodating dust; and a dust extraction opening through which the inner cavity communicates with the outside of the dust cup at the bottom surface, and through which the dust in the inner cavity can be extracted, where an opening end surface of the dust extraction opening intersects with the bottom surface. The dust suction apparatus provided by the present disclosure has the dust extraction opening with the opening end surface intersecting with the bottom surface, and a rotating airflow can be formed when gas passes through the dust extraction opening, thereby improving the efficiency of discharging the dust in the dust cup.

What is claimed is: 
     
         1 . A dust suction apparatus, comprising: a dust cup and a separation structure, wherein the dust cup has a bottom surface, and comprises:
 a dust inlet, through which dust enters the dust cup when the separation structure works;   an inner cavity for accommodating the dust in the dust cup; and   a dust extraction opening, through which the inner cavity communicates with the outside of the dust cup at the bottom surface, and through the dust extraction opening the dust in the inner cavity is capable of being extracted, wherein an opening end surface of the dust extraction opening intersects with the bottom surface.   
     
     
         2 . The dust suction apparatus according to  claim 1 , wherein the opening end surface of the dust extraction opening is perpendicular to the bottom surface, such that a flow direction of an airflow at the dust extraction opening is parallel to a tangential direction of the bottom surface at the dust extraction opening. 
     
     
         3 . The dust suction apparatus according to  claim 1 , wherein there are a plurality of dust extraction openings arranged in a rotational symmetry manner with a central point of the bottom surface as a center. 
     
     
         4 . The dust suction apparatus according to  claim 1 , wherein the dust extraction opening is adjacent to an outer edge of the bottom surface. 
     
     
         5 . The dust suction apparatus according to  claim 1 , the dust cup further comprising
 a dust extraction groove formed in the bottom surface, wherein the dust extraction opening is formed in a sidewall of the dust extraction groove, and at least part of a groove bottom of the dust extraction groove is inclined relative to the bottom surface.   
     
     
         6 . The dust suction apparatus according to  claim 5 , wherein an inclination angle of the groove bottom inclined relative to the bottom surface is within 45°. 
     
     
         7 . The dust suction apparatus according to  claim 6 , wherein one end of the groove bottom away from the dust extraction opening is connected to the bottom surface of the dust cup and is in smooth transition. 
     
     
         8 . The dust suction apparatus according to  claim 5 , wherein the dust extraction groove extends in an arc shape. 
     
     
         9 . The dust suction apparatus according to  claim 1 , further comprising
 a turning cover rotatably connected to the dust extraction opening, wherein the turning cover has a closed state and an opened state, is in the closed state when negative pressure is formed inside the inner cavity, covers the dust extraction opening in the closed state, is in the opened state when negative pressure is formed outside the dust cup, and uncovers the dust extraction opening in the opened state.   
     
     
         10 . The dust suction apparatus according to  claim 9 , wherein the turning cover is connected to the dust extraction opening by an elastic member, and the elastic member is configured to reset the turning cover to the closed state. 
     
     
         11 . A dust collection base station, comprising
 a mounting position for placing a dust cup,   wherein the dust cup has a bottom surface, an inner cavity, and a dust extraction opening through which the inner cavity communicates with the outside of the dust cup at the bottom surface and dust in the inner cavity is capable of being extracted to the dust collection base station, and an opening end surface of the dust extraction opening intersects with the bottom surface; and   the mounting position is provided with a dust collection opening corresponding to the dust extraction opening, and the dust collection base station extracts the dust in the inner cavity through the dust collection opening and the dust extraction opening.   
     
     
         12 . The dust collection base station according to  claim 11 , wherein the dust collection opening is of a spiral structure. 
     
     
         13 . The dust collection base station according to  claim 11 , further comprising:
 a machine frame, wherein the dust collection opening is located at an upper end inside the machine frame;   a dust collection cavity located inside the machine frame, wherein the dust collection cavity communicates with the dust collection opening; and   a dust collection fan located inside the machine frame, wherein the dust collection fan is capable of extracting the dust in the inner cavity to the dust collection cavity through the dust collection opening and the dust extraction opening.   
     
     
         14 . A dust collection system, comprising:
 a dust suction apparatus, wherein the dust suction apparatus comprises a dust cup and a separation structure, and the dust cup has a bottom surface, and comprises:
 a dust inlet, through which dust enters the dust cup when the separation structure works; 
 an inner cavity for accommodating the dust in the dust cup; and 
 a dust extraction opening through which the inner cavity communicates with the outside of the dust cup at the bottom surface, and through which the dust in the inner cavity is capable of being extracted, wherein an opening end surface of the dust extraction opening intersects with the bottom surface; and 
   a dust collection base station, wherein the dust collection base station is provided with a mounting position for placing the dust cup of the dust suction apparatus, the mounting position is provided with a dust collection opening corresponding to the dust extraction opening, and the dust collection base station extracts the dust in the inner cavity through the dust collection opening and the dust extraction opening.   
     
     
         15 . The dust collection system according to  claim 14 , wherein the opening end surface of the dust extraction opening is perpendicular to the bottom surface, such that a flow direction of an airflow at the dust extraction opening is parallel to a tangential direction of the bottom surface at the dust extraction opening. 
     
     
         16 . The dust collection system according to  claim 14 , wherein there are a plurality of dust extraction openings arranged in a rotational symmetry manner with a central point of the bottom surface as a center. 
     
     
         17 . The dust collection system according to  claim 14 , wherein the dust cup further comprises a dust extraction groove formed in the bottom surface of the dust cup, the dust extraction opening is formed in a sidewall of the dust extraction groove, and at least part of a groove bottom of the dust extraction groove is inclined relative to the bottom surface. 
     
     
         18 . The dust collection system according to  claim 17 , wherein one end of the groove bottom away from the dust extraction opening is connected to the bottom surface of the dust cup and is in smooth transition, and the dust extraction groove extends in an arc shape. 
     
     
         19 . The dust collection system according to  claim 14 , wherein the dust collection opening is of a spiral structure. 
     
     
         20 . The dust collection system according to  claim 14 , wherein the dust collection base station further comprises:
 a machine frame, wherein the dust collection opening is located at an upper end inside the machine frame;   a dust collection cavity located inside the machine frame, wherein the dust collection cavity communicates with the dust collection opening; and   a dust collection fan located inside the machine frame, wherein the dust collection fan is capable of extracting the dust in the inner cavity to the dust collection cavity through the dust collection opening and the dust extraction opening.