Dust collection device and vacuum cleaner

Abstract

A dust collection device and a vacuum cleaner are provided. The dust collection device includes a housing with a dust collecting cavity, wherein the housing is provided with an air inlet port and an air outlet port, and the air inlet port and the air outlet port are configured for communicating the dust collecting cavity and the outside, and the air inlet port and the air outlet port are arranged in a staggered manner.

What is claimed is: 
     
         1 . A dust collection device, comprising a housing with a dust collecting cavity, wherein the housing is provided with an air inlet port and an air outlet port, and the air inlet port and the air outlet port are configured for communicating the dust collecting cavity and the outside, and the air inlet port and the air outlet port are arranged in a staggered manner.  
     
     
         2 . The dust collection device of  claim 1 , wherein the air inlet port and the air outlet port are provided on an upper wall of the dust collecting cavity. 
     
     
         3 . The dust collection device of  claim 2 , further comprising a first air inlet pipe arranged on the upper wall of the dust collecting cavity and being in communication with the air inlet port, wherein an end of the first air inlet pipe away from the air inlet port is provided with an opening arranged in a staggered manner from the air outlet port. 
     
     
         4 . The dust collection device of  claim 3 , wherein the first air inlet pipe comprises a pipe body and a restricting portion which are connected to and in communication with each other; one end of the pipe body is connected to and in communication with the air inlet port, the other end of the pipe body away from the air inlet port is connected to and in communication with the restricting portion, and the opening is disposed on a side wall of the restricting portion. 
     
     
         5 . The dust collection device of  claim 4 , wherein, an orientation of the opening is parallel to a tangent plane of a side wall of the dust collecting cavity; and/or, 
       along a clockwise direction, an angle between a line defined by a center of the upper wall of the dust collecting cavity and a center of the air inlet port and a line defined by the center of the upper wall of the dust collecting cavity and a center of the air outlet port is in a range of 180 degrees to 330 degrees. 
     
     
         6 . The dust collection device of  claim 4 , wherein an inner surface of the restricting portion is an arc-shaped surface; and/or,  
       the first air inlet pipe is detachably connected to the upper wall of the dust collecting cavity. 
     
     
         7 . The dust collection device of  claim 1 , wherein the air outlet port is provided on the upper wall of the dust collecting cavity, and the air inlet port is provided on the side wall of the dust collecting cavity. 
     
     
         8 . The dust collection device of  claim 7 , further comprising a second air inlet pipe disposed on an outer surface of the housing, and the second air inlet pipe is connected to and in communication with the air inlet port. 
     
     
         9 . The dust collection device of  claim 8 , wherein the second air inlet pipe extends from the air inlet port along a tangent plane of the outer surface of the housing; and/or,  
       the second air inlet pipe is inclined upward from the air inlet port. 
     
     
         10 . The dust collection device of  claim 1 , wherein the housing comprises a barrel body and a cover body, the barrel body is provided with a bucket opening, the cover body is detachably covered on the bucket opening and define the dust collecting cavity with the barrel body. 
     
     
         11 . The dust collection device of  claim 10 , further comprising a buckle assembly, the buckle assembly comprises a first buckle and a second buckle that are interlocked with each other, one of the first buckle and the second buckle is disposed on an edge of the bucket opening, and the other one of the first buckle and the second buckle is disposed on an outer side edge of the cover body. 
     
     
         12 . The dust collection device of  claim 11 , wherein the first buckle is disposed on the edge of the bucket opening, the second buckle is disposed on the outer side edge of the cover body, and the second buckle is capable of rotating relative to the cover body, so as to clip with or separate from the first buckle. 
     
     
         13 . The dust collection device of  claim 1 , further comprising an air outlet elbow disposed on an external top wall of the housing and being connected to and in communication with the air outlet port, and an end of the air outlet elbow away from the air outlet port is configured for connecting to a vacuum cleaner. 
     
     
         14 . The dust collection device of  claim 1 , further comprising a filter element disposed on an upper wall of the dust collecting cavity, the air outlet port is connected to and in communication with the dust collecting cavity via the filter element. 
     
     
         15 . The dust collection device of  claim 14 , wherein the filter element comprises at least one dust filter pipe, the dust filter pipe comprises a pipe portion and a dust blocking portion that are connected in sequence along an axis of the dust filter pipe, the pipe portion is connected to and in communication with the air outlet port, the dust blocking portion is provided with an air filter port that is connected to and in communication with the dust collecting cavity, and a projection of an end of the dust blocking portion away from the pipe portion along an axis of the pipe portion is capable of covering at least a part of the pipe orifice of the pipe portion.  
     
     
         16 . The dust collection device of  claim 15 , wherein the dust blocking portion comprises a first blocking wall extending from an end wall of the pipe portion along the axis of the pipe portion and a second blocking wall extending from the first blocking wall along an axis of the first blocking wall, an inner surface of the second blocking wall is arc-shaped, and a projection of the second blocking wall along the axis of the pipe portion is capable of covering at least a part of the pipe orifice of the pipe portion. 
     
     
         17 . The dust collection device of  claim 16 , wherein the dust filter pipe further comprises a dust guiding portion, an inner surface of the dust guiding portion is sequentially connected to an inner surface of the first blocking wall and the inner surface of the second blocking wall, and is capable of sheltering a part of the air filter port along a circumference of the air filter port. 
     
     
         18 . The dust collection device of  claim 17 , wherein the inner surface of the dust guiding portion is an arc-shaped surface, and a curvature radius of the inner surface of the dust guiding portion is smaller than a curvature radius of the inner surface of the first blocking wall, optionally, a curvature radius of the inner surface of the dust guiding portion is smaller than a curvature radius of the inner surface of the pipe portion. 
     
     
         19 . The dust collection device of  claim 16 , wherein the filter element comprises a plurality of dust filter pipes, the plurality of dust filter pipes are circumferentially arranged around an axis of the air outlet port, and the orientations of the inner surfaces of the plurality of the second blocking walls of the plurality of dust filter pipes are arranged staggered manner along the circumference of the air outlet port around the axis of the air outlet port. 
     
     
         20 . A vacuum cleaner, comprising a vacuum cleaner body, a suction nozzle and the dust collection device of  claim 1 , wherein the vacuum cleaner body is connected to and in communication with the air outlet port, and the suction nozzle is connected to and in communication with the air inlet port.