Filtering dust collection device and cleaning robot

Abstract

The application belongs to the technical field of cleaning robot devices, and particularly relates to a filtering dust collecting device and a cleaning robot. The filtering dust collecting device comprises a shell, an inner shell component, a first filtering structure, a second filtering structure and a third filtering structure. In the filtering dust collecting device, the airflow carrying the debris garbage and dust is filtered and separated layer by layer through the second filtering structure, the first filtering structure and the third filtering structure in sequence, so that the debris garbage and dust sucked along with the airflow are more completely intercepted in the filtering dust collecting device, and the debris garbage and dust are filtered and separated in layers, which cannot easily cause the filtering structure to be blocked. Therefore, the application of the technical scheme can solve the problem that the HEPA filter screen in the current cleaning robot is easily blocked by dust or debris garbage, the suction force of the cleaning robot is weakened, and the working effect of dust cleaning is affected when cleaning work is performed.

Description

Technical Field

[0001] This application belongs to the field of cleaning robot equipment technology, and particularly relates to a dust collection and filtration device and a cleaning robot. Background Technology

[0002] Current cleaning robots typically use a high-efficiency air filter (HEPA) to separate the inhaled dust from the air. Generally, the HEPA filter is installed inside the chamber where dust is collected and deposited. Therefore, the HEPA filter is easily clogged by dust or debris, which weakens the robot's suction power, affecting cleaning efficiency and user experience. Summary of the Invention

[0003] The purpose of this application is to provide a dust collection and filtration device and a cleaning robot, which aims to solve the problem that the HEPA filter of the current cleaning robot is easily clogged by dust or debris, resulting in a weakening of the cleaning robot's suction power and affecting the cleaning effect during cleaning work.

[0004] To achieve the above objectives, according to the first aspect of this application, the technical solution adopted is: a dust collection and filtration device, comprising:

[0005] The housing has a cavity and is provided with an installation port, an air inlet and an air outlet.

[0006] An inner shell component is installed inside the cavity. The bottom end of the inner shell component abuts against the bottom wall of the shell to divide the cavity into a first chamber and a second chamber. The inner shell component is provided with a first communication port and a second communication port. The first chamber is connected to the inner cavity of the inner shell component through the first communication port, and the second chamber is connected to the inner cavity of the inner shell component through the second communication port. The air inlet is connected to the first chamber, and the mounting port and the air outlet are both connected to the second chamber.

[0007] The first filter structure is installed in the inner cavity of the inner shell component. The first filter structure has a first interface, a second interface and a third interface. The first interface is connected to the first communication port, the second interface extends to the bottom end of the inner shell component, and the third interface is connected to the second communication port. The particulate waste carried by the airflow flowing through the first filter structure is filtered and deposited into the inner cavity of the inner shell component by the first filter structure.

[0008] The second filter structure is installed on the inner shell component. The second filter structure covers the first communication port and is used to filter the airflow flowing toward the first interface.

[0009] The third filter structure is installed at the mounting port. The third filter structure includes a fine filter screen that extends to the inner shell component to separate the second communication port from the air outlet.

[0010] In some embodiments of this application, the first filter structure includes at least one cyclone cylinder, which is a conical cylinder with both ends open. The small end of the conical cyclone cylinder is a second interface portion, and the large end of the conical cyclone cylinder is a third interface portion. The side wall of the cyclone cylinder is provided with a first interface portion, which is close to the third interface portion, and the channel extension direction of the first interface portion is tangent to the inner wall of the cyclone cylinder.

[0011] In some embodiments of this application, the inner shell component includes a supporting bottom shell, a shell frame, and a shell cover assembly. The bottom end of the supporting bottom shell abuts against the bottom wall of the shell. The shell frame and the shell cover assembly are stacked sequentially on the supporting bottom shell. The shell cover assembly divides the cavity into a first chamber and a second chamber. A first communication port is disposed on the shell frame, a second communication port is disposed on the shell cover assembly, and a third interface portion abuts against the shell cover assembly and communicates with the second communication port.

[0012] In some embodiments of this application, the cover assembly includes a cover member and a buffer cover. The cover member is connected to the inner wall of the housing to divide the cavity into a first chamber and a second chamber. A second communication port is provided on the cover member. The buffer cover is installed on the side of the cover member away from the first filter structure and covers the second communication port. The buffer cover has an opening.

[0013] In some embodiments of this application, the outer wall of the supporting base shell is provided with an annular skirt plate, which surrounds the supporting base shell circumferentially and is inclined in a direction from top to bottom.

[0014] In some embodiments of this application, the bottom wall of the shell is provided with a plurality of spaced-apart blocking plates, the plurality of blocking plates surround the inner shell component, and the plane on which the plate surface of each blocking plate is located intersects with the outer side wall supporting the bottom shell.

[0015] In some embodiments of this application, the housing includes a housing body and a flip door panel. The bottom end of the housing body is an open end. One side of the flip door panel is rotatably connected to the housing body. The flip door panel is used to close or open the open end. When the flip door panel closes the open end, the flip door panel serves as the bottom wall of the housing. The bottom end of the supporting shell abuts against the flip door panel when the open end of the flip door panel is closed.

[0016] In some embodiments of this application, a first sealing element is installed on the flip door panel. When the flip door panel closes its open end, the first sealing element abuts against the bottom end of the supporting base shell to create a seal between the bottom end of the supporting base shell and the flip door panel.

[0017] In some embodiments of this application, a second seal is also installed on the flip door panel, the second seal surrounding the first seal, and the second seal abutting against the edge of the opening end to seal the opening end when the flip door panel closes the opening end.

[0018] According to a second aspect of this application, a cleaning robot is provided. Specifically, the cleaning robot includes: a body assembly and a filter dust collection device as described above. The top of the body assembly is provided with an installation space, and the side wall of the installation space is provided with an airflow inlet and an airflow outlet. The filter dust collection device is detachably installed in the installation space, with the air inlet of the filter dust collection device connected to the airflow inlet, and the air outlet of the filter dust collection device connected to the airflow outlet.

[0019] This application has at least the following beneficial effects:

[0020] When the cleaning robot provided in this application vacuums and cleans floors, debris and dust are sucked into a filtration and dust collection device for filtration and separation of debris, dust, and airflow. The debris and dust are then collected and settled within the filtration and dust collection device. In this filtration and dust collection device, the airflow carrying debris and dust is filtered and separated layer by layer through a second, first, and third filtration structure. This ensures that the debris and dust sucked in with the airflow are more thoroughly trapped in the filtration and dust collection device. Furthermore, the layered filtration and separation through the second, first, and third filtration structures allows for the collection and settling of debris and dust at different levels, reducing the probability of clogging at each filtration stage. This allows the cleaning robot to maintain suction power effectively for a longer period, significantly improving the cleaning effect and enhancing the user experience. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the assembly structure of the cleaning robot according to an embodiment of this application;

[0023] Figure 2 This is an exploded view of the cleaning robot according to an embodiment of this application. Figure 1 ;

[0024] Figure 3 This is an exploded view of the cleaning robot according to an embodiment of this application. Figure 2 ;

[0025] Figure 4 This is a cross-sectional schematic diagram of the dust collection and filtration device according to an embodiment of this application;

[0026] Figure 5 This is an exploded view of the dust collection and filtration device according to an embodiment of this application. Figure 1 ;

[0027] Figure 6 This is an exploded view of the dust collection and filtration device according to an embodiment of this application. Figure 2 ;

[0028] Figure 7 This is a schematic diagram of the first filter structure of the dust collection device according to an embodiment of this application.

[0029] The following are the labeling elements in the figure:

[0030] 100. Filter and dust collection device;

[0031] 10. Housing; 111. First chamber; 112. Second chamber; 12. Mounting port; 13. Air inlet; 14. Air outlet; 15. Housing body; 16. Flip-up door panel; 161. Baffle plate; 17. Top cover; 18. Lock;

[0032] 20. Inner shell component; 21. First connecting port; 22. Second connecting port; 23. Supporting bottom shell; 231. Annular skirt; 24. Shell frame; 25. Shell cover assembly; 251. Cover body component; 2511. Cover plate; 2512. Cover body; 252. Buffer cover; 2521. Opening;

[0033] 30. First filter structure; 31. First interface section; 32. Second interface section; 33. Third interface section; 34. Cyclone cylinder;

[0034] 40. Second filtration structure; 50. Third filtration structure; 51. Fine filter screen;

[0035] 61. First seal; 62. Second seal;

[0036] 300. Cleaning robot;

[0037] 310. Fuselage assembly; 311. Installation space; 312. Airflow inlet; 313. Airflow outlet. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0039] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] like Figures 4 to 7As shown, the dust collection device 100 provided in the embodiments of this application includes a housing 10, an inner shell component 20, a first filter structure 30, a second filter structure 40, and a third filter structure 50. The housing 10 forms a cavity and is provided with an installation port 12, an air inlet 13, and an air outlet 14. The inner shell component 20 is installed in the cavity, and the bottom end of the inner shell component 20 abuts against the bottom wall of the housing 10 to divide the cavity into a first chamber 111 and a second chamber 112. The inner shell component 20 is provided with a first communication port 21 and a second communication port 22. The first chamber 111 is connected to the inner cavity of the inner shell component 20 through the first communication port 21, and the second chamber 112 is connected to the inner cavity of the inner shell component 20 through the second communication port 22. The air inlet 13 is connected to the first chamber 111, and both the installation port 12 and the air outlet 14 are connected to the second chamber 112. The first filter structure 30 is installed in the inner cavity of the inner shell member 20. The first filter structure 30 has a first interface portion 31, a second interface portion 32, and a third interface portion 33. The first interface portion 31 communicates with the first connecting port 21, the second interface portion 32 extends to the bottom end of the inner shell member 20, and the third interface portion 33 communicates with the second connecting port 22. Particulate matter carried by the airflow flowing through the first filter structure 30 is filtered and deposited in the inner cavity of the inner shell member 20. The second filter structure 40 is installed in the inner shell member 20 and covers the first connecting port 21. The second filter structure 40 is used to filter the airflow flowing towards the first interface portion 31. The third filter structure 50 is installed at the mounting port 12. The third filter structure 50 includes a fine filter screen 51 that extends into the inner shell member 20 to separate the second connecting port 22 from the air outlet 14.

[0043] When the cleaning robot 300 provided in this application vacuums and cleans the floor, debris and dust are sucked into the filter dust collection device 100 for filtration and separation of debris, dust, and airflow. The debris and dust are then collected and settled within the filter dust collection device 100. In this filter dust collection device 100, the airflow carrying debris and dust is filtered and separated layer by layer through the second filter structure 40, the first filter structure 30, and the third filter structure 50. This ensures that the debris and dust sucked in with the airflow are more thoroughly trapped in the filter dust collection device 100. Furthermore, the layered filtration and separation through the second filter structure 40, the first filter structure 30, and the third filter structure 50 allows for the collection and settling of debris and dust at different levels, reducing the probability of clogging at each filter level. This effectively maintains the suction power of the cleaning robot for a longer period, significantly improving the vacuuming and cleaning effect of the cleaning robot 300 and enhancing the user experience.

[0044] In the embodiments of this application, the second filter structure 40 uses a filter with larger mesh size (the larger mesh size is relative to the mesh size of the fine filter 51 used in the third filter structure 50, and is a relative concept), thereby trapping larger debris and garbage at the bottom of the first chamber 111.

[0045] like Figure 4 , Figure 6 and Figure 7 As shown, the first filter structure 30 includes at least one cyclone cylinder 34, which is a conical cylinder with both ends through. The small end of the conical cyclone cylinder 34 is the second interface portion 32, and the large end of the conical cyclone cylinder 34 is the third interface portion 33. The side wall of the cyclone cylinder 34 is provided with a first interface portion 31, which is close to the third interface portion 33, and the channel extension direction of the first interface portion 31 is tangent to the inner wall of the cyclone cylinder 34. Since the channel extension direction of the first interface 31 is tangent to the inner wall of the cyclone cylinder 34, the airflow entering the cyclone cylinder 34 from the first interface 31 will generate a rotational effect. The centrifugal forces on air and debris and dust are different. Part of the airflow flows downward along the cyclone cylinder 34 to the second interface 32, and part of the airflow flows upward along the cyclone cylinder 34 to the third interface 33. Furthermore, larger particles of debris and dust carried in the airflow settle downward along the cyclone cylinder 34 under the action of centrifugal force and gravity, while smaller particles are carried upward by the airflow to the third filter structure 50 and are filtered and retained. Therefore, the first filter structure 30 utilizes the combined action of gravity and centrifugal force of particulate debris and dust to achieve separation from the air, thereby allowing the particulate debris and dust to be collected and settled.

[0046] Furthermore, in the embodiments of this application, the first filter structure 30 includes a plurality of cyclone cylinders 34, which are arranged side by side as a single integral component, thereby facilitating handling and movement, and allowing for the simultaneous assembly of the plurality of cyclone cylinders 34 as a whole. The plurality of cyclone cylinders 34 work together to simultaneously filter and separate particulate debris and dust in the airflow, greatly improving filtration and analysis efficiency.

[0047] like Figure 4 , Figure 6 and Figure 7As shown, the inner shell component 20 includes a supporting bottom shell 23, a frame 24, and a cover assembly 25. The bottom end of the supporting bottom shell 23 abuts against the bottom wall of the shell 10. The frame 24 and the cover assembly 25 are stacked sequentially on the supporting bottom shell 23. Multiple cyclone cylinders 34 are suspended within the inner shell component 20 via the frame 24. The cover assembly 25 divides the cavity into a first chamber 111 and a second chamber 112. A first connecting port 21 is provided on the frame 24, a second connecting port 22 is provided on the cover assembly 25, and a third interface portion 33 abuts against the cover assembly 25 and communicates with the second connecting port 22. This design structure can greatly reduce the assembly difficulty of the filter dust collection device 100, thereby improving the efficiency of assembling and producing the filter dust collection device 100.

[0048] like Figures 4 to 7 As shown, the cover assembly 25 includes a cover member 251 and a buffer cover 252. The cover member 251 is connected to the inner wall of the housing 10 to divide the cavity into a first chamber 111 and a second chamber 112. The cover member 251 includes a cover plate 2511 and a cover body 2512. The cover body 2512 has a cylindrical structure. The cover plate 2511 is connected to the bottom end of the cover body 2512. The top end of the cover body 2512 is connected to the inner wall of the housing 10 and is positioned opposite the mounting opening 12, thereby dividing the cavity into the first chamber 111 and the second chamber 112. A second communication opening 22 is provided on the cover plate 2511 of the cover member 251. The buffer cover 252 is installed on the side of the cover plate 2511 of the cover member 251 that is away from the first filter structure 30, and the buffer cover 252 covers the second communication opening 22. The buffer cover 252 has an opening 2521. The buffer cover 252 buffers the airflow blowing from the second connecting port 22 and converges the airflow before blowing it towards the third filter structure 50. During the process of the airflow being buffered by the buffer cover 252, due to the decrease in airflow velocity, some particulate debris and dust carried in the airflow will settle downwards under gravity, reducing the amount of excessively large dust particles blown to the third filter structure 50 for filtration, thus lowering the probability of the third filter structure 50 becoming clogged and protecting it. Furthermore, the smooth, curved surface of the buffer cover 252 effectively reduces the impact force of the airflow on the wall, thereby reducing wind noise to a certain extent.

[0049] like Figure 4 and Figure 6As shown, the outer wall of the supporting base shell 23 is provided with an annular skirt 231, which surrounds the supporting base shell 23 circumferentially and is inclined from top to bottom. Due to the continuous airflow, settled debris and dust are stirred up. To reduce the large-scale stirring up of settled debris and dust, the annular skirt 231 is provided. The annular skirt 231 can intercept most of the debris and dust stirred up from the bottom, and the intercepted debris and dust will then fall down along the outer wall of the supporting base shell 23.

[0050] like Figure 4 and Figure 6 As shown, the bottom wall of the housing 10 is provided with multiple spaced-apart baffle plates 161. These baffle plates 161 surround the inner shell component 20, and the plane of each baffle plate 161 intersects with the outer wall of the supporting bottom shell 23. Since the airflow continuously flows in a cyclical, rotating manner within the cavity, it carries debris and dust, causing them to rotate and affecting the filtration and separation effect. To reduce the impact of rotating debris and dust on the filtration and separation effect, multiple baffle plates 161 are used to block the rotating airflow, thus disrupting the airflow and preventing it from rotating. This also prevents debris and dust from flowing with the airflow, reducing the amount of rotating debris and dust, thereby improving the filtration and separation effect.

[0051] In the embodiments of this application, the central axis of the inner shell component 20 lies within the plane of each of the blocking uprights 161. That is, from a top view, each blocking upright 161 is a line segment, the central axis of the inner shell component 20 is a point, and the straight line containing the line segment passes through the point representing the central axis. The blocking uprights 161 designed in this way have a better effect in preventing debris and dust from rotating with the airflow.

[0052] like Figures 4 to 7As shown, the housing 10 includes a housing body 15, a flip-up door panel 16, and a top cover 17. The bottom end of the housing body 15 is an open end, and the top cover 17 is installed on the top end of the housing body 15, with a mounting opening 12 on the top cover 17. One side of the flip-up door panel 16 is rotatably connected to the housing body 15. The flip-up door panel 16 is used to close or open the open end. When the open end of the flip-up door panel 16 is closed, the flip-up door panel 16 acts as the bottom wall of the housing 10, and the bottom end of the supporting bottom shell 23 abuts against the flip-up door panel 16 when the open end of the flip-up door panel 16 is closed. When the open end is closed by the flip-up door panel 16, the cavity and the inner cavity of the inner shell component are formed into a sealed chamber. During the vacuuming and cleaning process, the debris and dust that have been filtered and separated by the first filter structure 30, the second filter structure 40, and the third filter structure 50 are trapped in the cavity and the inner cavity of the inner shell component. When the opening end is opened by flipping the door panel 16, the debris, garbage and dust trapped in the cavity and inner shell components can be cleaned out, making the cleaning work convenient, simple and quick.

[0053] In this embodiment, when the opening end of the flip door panel 16 is closed, the flip door panel 16 is locked by the latch 18. When it is necessary to open the flip door panel 16, the latch 18 is unlocked, and then the flip door panel 16 will flip open the opening end under its own gravity.

[0054] like Figure 4 and Figure 6 As shown, a first sealing element 61 is installed on the flip door panel 16. When the open end of the flip door panel 16 is closed, the first sealing element 61 abuts against the bottom end of the supporting base shell 23 to seal the bottom end of the supporting base shell 23 with the flip door panel 16. By sealing the bottom end of the supporting base shell 23 with the flip door panel 16 through the first sealing element 61, the first chamber 111 and the inner cavity of the inner shell component 20 are formed as two completely independent chambers. The dust that settles in the inner shell component 20 will not return to the first chamber 111 for filtration again due to airflow, ensuring that the filtration and separation of debris and dust is always performed efficiently.

[0055] Furthermore, such as Figure 4 and Figure 6 As shown, a second seal 62 is also installed on the flip door panel 16. The second seal 62 surrounds the first seal 61. When the flip door panel 16 closes the opening end, the second seal 62 abuts against the edge of the opening end to seal the opening end. By sealing the edge of the opening end with the second seal 62, debris, garbage, and dust deposited in the first chamber 111 will not leak out.

[0056] According to another aspect of this application, a cleaning robot 300 is provided, such as... Figures 1 to 3As shown. Specifically, the cleaning robot 300 includes a body assembly 310 and a filter and dust collection device 100 as described above. Figures 1 to 3 As shown, the top of the body assembly 310 is provided with an installation space 311, and the side wall of the installation space 311 is provided with an airflow inlet 312 and an airflow outlet 313. The filter dust collection device 100 is detachably installed in the installation space 311. The air inlet 13 is connected to the airflow inlet 312, and the air outlet 14 is connected to the airflow outlet 313.

[0057] The body assembly 310 includes a fan and an air duct assembly. The fan inlet is connected to its airflow outlet 313, and the fan outlet is connected to the air duct assembly. When the fan starts, it draws air, causing the airflow to pass through the filter dust collection device 100. At this time, the air pressure inside the filter dust collection device 100 is negative relative to the external atmospheric pressure, which generates suction. This allows debris and dust on the ground to be adsorbed and carried by the airflow through the various stages of the filtration structure. This layered filtration and separation of the airflow carrying debris and dust ensures that the debris and dust drawn in with the airflow are more thoroughly trapped in the filter dust collection device, resulting in better dust collection and cleaning performance and improved user experience.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust collection and filtration device, characterized in that, include: The housing has a cavity, and the housing is provided with an installation port, an air inlet, and an air outlet; An inner shell component is installed inside the cavity. The bottom end of the inner shell component abuts against the bottom wall of the outer shell to divide the cavity into a first chamber and a second chamber. The inner shell component has a first communication port and a second communication port. The first chamber is connected to the inner cavity of the inner shell component through the first communication port, and the second chamber is connected to the inner cavity of the inner shell component through the second communication port. The air inlet is connected to the first chamber, and the mounting port and the air outlet are both connected to the second chamber. A first filter structure is installed in the inner cavity of the inner shell component. The first filter structure has a first interface, a second interface, and a third interface. The first interface communicates with the first communication port, the second interface extends to the bottom end of the inner shell component, and the third interface communicates with the second communication port. Particulate waste carried by the airflow flowing through the first filter structure is filtered and deposited into the inner cavity of the inner shell component by the first filter structure. A second filter structure is installed on the inner shell component. The second filter structure covers the first communication port and is used to filter the airflow flowing toward the first interface. A third filter structure is installed at the mounting port. The third filter structure includes a fine filter screen that extends to the inner shell component to separate the second communication port from the air outlet. The inner shell component includes a supporting bottom shell, a shell frame, and a shell cover assembly. The bottom end of the supporting bottom shell abuts against the bottom wall of the shell. The shell frame and the shell cover assembly are stacked sequentially on the supporting bottom shell. The shell cover assembly divides the cavity into a first chamber and a second chamber. The first communication port is disposed on the shell frame, and the second communication port is disposed on the shell cover assembly. The third interface portion abuts against the shell cover assembly and communicates with the second communication port. The shell cover assembly includes a cover member and a buffer cover. The cover member is connected to the inner wall of the shell to divide the cavity into a first chamber and a second chamber. A second communication port is provided on the cover member. The buffer cover is installed on the side of the cover member opposite to the first filter structure and covers the second communication port. The buffer cover has an opening, and the fine filter screen covers the opening. The buffer cover has a smooth arc-shaped surface. The buffer cover gathers airflow and blows it toward the third filter structure.

2. The dust collection and filtration device according to claim 1, characterized in that: The first filter structure includes at least one cyclone cylinder, which is a conical cylinder with both ends open. The small end of the conical cyclone cylinder is the second interface portion, and the large end of the conical cyclone cylinder is the third interface portion. The side wall of the cyclone cylinder is provided with the first interface portion, which is close to the third interface portion, and the channel extension direction of the first interface portion is tangent to the inner wall of the cyclone cylinder.

3. The dust collection and filtration device according to claim 1, characterized in that: The outer wall of the supporting base shell is provided with an annular skirt plate, which surrounds the supporting base shell circumferentially and is inclined from top to bottom.

4. The dust collection and filtration device according to claim 3, characterized in that: The bottom wall of the shell is provided with a plurality of spaced-apart blocking plates, which surround the inner shell component. The plane on which the surface of each blocking plate is located intersects with the outer side wall of the supporting bottom shell.

5. The dust collection and filtration device according to any one of claims 1-4, characterized in that: The housing includes a main body and a flip-up door panel. The bottom end of the main body is an open end. One side of the flip-up door panel is rotatably connected to the main body. The flip-up door panel is used to close or open the open end. The bottom end of the supporting bottom shell abuts against the flip-up door panel when the open end is closed.

6. The dust collection and filtration device according to claim 5, characterized in that: A first sealing element is installed on the flip door panel. When the flip door panel closes the opening end, the first sealing element abuts against the bottom end of the supporting base shell, so that the bottom end of the supporting base shell and the flip door panel are sealed together.

7. The dust collection and filtration device according to claim 6, characterized in that: A second seal is also installed on the flip-up door panel, the second seal surrounding the first seal, and the second seal abutting against the edge of the opening end when the flip-up door panel closes the opening end to seal the opening end.

8. A cleaning robot, characterized in that, include: The fuselage assembly has an installation space on its top and an airflow inlet and an airflow outlet on its side wall. And the dust collection and filtration device as described in any one of claims 1-7, wherein the dust collection and filtration device is detachably installed in the installation space, the air inlet is connected to the airflow inlet, and the air outlet is connected to the airflow outlet.

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