Dust box, cleaning equipment and cleaning system

Abstract

The invention provides a dust box, cleaning equipment and a cleaning system. The dust box comprises a box body, a HEPA filter part and a switch part, and an air inlet, a containing cavity, a communication port, a dust collection port, a dust suction port and an air outlet are formed in the box body; the cleaning equipment comprises an air duct shell, the air duct shell is in sealed butt joint with the air outlet and the communicating opening, and when the cleaning equipment works, air flow is driven to sequentially flow through the containing cavity, the HEPA filter part and the air outlet from the dust suction opening to enter the air duct shell; the cleaning equipment is provided with a first flow channel and a second flow channel, when the cleaning equipment is in butt joint with the base station, airflow flowing out of the base station pushes the switch piece from the first position to the second position through the air inlet, and the airflow passes through the air inlet, the containing cavity and the dust collection opening when passing through the first flow channel; when passing through the second flow channel, airflow passes through the air inlet, the communicating opening, the air channel shell, the air outlet, the HEPA filter part, the containing cavity and the dust collecting opening. Therefore, the air purification effect of the HEPA filter screen can be ensured without additionally arranging an air duct.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment, and particularly relates to a dust box, a cleaning equipment, and a cleaning system. Background Art

[0002] Currently, the working principle of a floor sweeper for dust collection includes driving blades to rotate at high speed by a motor to generate negative pressure in a sealed dust box, sucking the surfaces of carpets, floors, etc. with dust particles, and the dust particles are sucked into a filter together with the air. The dust particles are filtered by the filter elements in the filter and collected by the dust box, and the filtered clean air is exhausted outside the floor sweeper body. In related technologies, a High Efficiency Particulate Air (HEPA) filter can be used in the dust collection box to clean the space discharged from the outside of the dust box. Using a HEPA (High Efficiency Particulate Air) filter to deeply filter the discharged air can effectively improve the exhaust cleanliness, achieving a 0.3-micron particle filtration efficiency of 99.97%. However, in actual use, it faces significant technical bottlenecks: as the usage time accumulates, the fiber gaps of the HEPA filter will gradually be blocked by dust particles, resulting in problems such as increased air flow resistance, decreased filtration efficiency, and increased energy consumption. Therefore, it is only possible to clean the side of the HEPA filter blocked by dust through an additional air duct to ensure the cleaning function of the HEPA filter.

[0003] However, the introduction of an additional air duct will inevitably occupy the precious internal space of the floor sweeper, resulting in an increase in the overall volume of the machine or squeezing the layout space of other functional modules; the complex air duct structure will increase the production cost and assembly difficulty; the reverse dust cleaning effect is restricted by the internal space of the robot and it is often difficult to achieve thorough cleaning, and regular manual maintenance is still required. Summary of the Invention

[0004] Multiple embodiments in this application provide a dust box, a cleaning equipment, and a cleaning system, which can solve the problem of the need to additionally increase air duct components to clean the HEPA filter.

[0005] In a first aspect, an embodiment of this application provides a dust box for a cleaning equipment. The dust box includes a box body, a HEPA filter element, and a switch member. An air inlet, a receiving cavity, a communication port, a dust collection port, a dust suction port, and an air outlet are formed in the box body. Among them, the dust suction port and the air outlet are arranged on opposite sides of the receiving cavity; the HEPA filter element is arranged on the side wall of the receiving cavity and abuts against the air outlet; among them, the cleaning equipment includes an air duct housing, and the air duct housing is hermetically docked with the air outlet and the communication port respectively. When the cleaning equipment works, it drives air flow to flow from the dust suction port through the receiving cavity, the air outlet, and the HEPA filter element into the air duct housing in sequence; the switch member is movably provided with a first position for blocking the air inlet and a second position for opening the air inlet;

[0006] The cleaning device has a first flow channel and a second flow channel. When the cleaning device is docked with the base station, the air flow flowing out of the base station pushes the switch member from the first position to the second position through the air inlet. When the air flow passes through the first flow channel, it passes through the air inlet, the accommodation cavity and the dust collection port. When the air flow passes through the second flow channel, it passes through the air inlet, the communication port, the air duct housing, the air outlet, the HEPA filter element, the accommodation cavity and the dust collection port.

[0007] In this way, after the cleaning device is docked with the base station, the air flow generated by the base station can enter the dust box through the air inlet. The air flow can open the switch member and discharge dust and other impurities in the dust box to the dust collection device of the base station through the first flow channel and the second flow channel respectively. At the same time, the air flow flowing along the second flow channel can reversely clean the dust and impurities on the HEPA filter screen, so that the HEPA filter screen remains clean. In this way, while the cleaning device realizes dust recovery at the base station, it can clean the HEPA filter screen through the air duct of the dust box, and can ensure the air purification effect of the HEPA filter screen without additionally increasing the air duct. In addition, compared with the existing HEPA self-cleaning technology, the first flow channel is retained in this embodiment. The first flow channel can discharge dust and other impurities in the accommodation cavity to the dust collection device of the base station, so that there is no dead angle when the dust box collects dust.

[0008] Optionally, the box body includes an accommodation space for accommodating the movement of the switch member. The switch member can slide along the height direction of the box body in the accommodation space to block or open the air inlet.

[0009] In this way, the cleaning device can be switched between different modes, and good airtightness can be ensured when the cleaning device is working.

[0010] Optionally, the switch member includes a sealing portion. When the switch member is in the first position, the sealing portion cooperates with the box body to block the air inlet. When the switch member is in the second position, the sealing portion opens the air inlet.

[0011] In this way, the sealing portion can ensure stronger airtightness when the cleaning device is working.

[0012] Optionally, the accommodation space is formed with a guide rail along the height direction of the box body, and the switch member is formed with a guide groove. The guide rail is arranged in the guide groove to limit the movement of the switch member along the height direction of the box body. Among them, in the height direction of the box body, the air inlet is located below the switch member;

[0013] When the cleaning device is docked with the base station, the airflow flowing out of the base station pushes the switch element from the first position to the second position through the air inlet, so that the sealing part moves away from and opens the air inlet; when the airflow of the base station stops, the switch element moves from the second position to the first position under the action of its own gravity, so that the sealing part blocks the air inlet.

[0014] In this way, the switch element can slide smoothly between the first position and the second position.

[0015] Optionally, the box body further includes a first air guide cavity, a second air guide cavity, and a third air guide cavity, wherein the first air guide cavity and the second air guide cavity are distributed along the length direction of the box body, the second air guide cavity and the third air guide cavity are distributed along the width direction of the box body, and the third air guide cavity is respectively connected to the second air guide cavity and the connecting port, wherein when the switch member moves to the second position, the air inlet is respectively connected to the first air guide cavity and the second air guide cavity;

[0016] When the cleaning device is docked with the base station, the airflow flowing out of the base station pushes the switch from the first position to the second position through the air inlet, and the airflow passes through the air inlet, the first air guide cavity, the accommodating cavity and the dust collecting port when passing through the first flow channel. When the airflow passes through the second flow channel, it passes through the air inlet, the second air guide cavity, the third air guide cavity, the connecting port, the air duct housing, the air outlet, the HEPA filter, the accommodating cavity and the dust collecting port.

[0017] In this way, the airflow in different flow channels passes through different air guide cavities to achieve different work contents.

[0018] Optionally, the box body is further formed with a connecting hole, which connects the accommodating space and the third air guide cavity, and avoids the connecting hole when the switch is located at the second position.

[0019] This allows airflow within the accommodating space to enter the third air guide cavity through the connecting hole. This allows the switch member to rise along the guide rail to the second position under the influence of the airflow, thereby opening the first and second flow channels. When the airflow at the air inlet is too strong, the switch member can be pushed to continue rising to expose the connecting hole. At this point, the second flow channel forms a dual channel to transmit airflow, providing appropriate airflow compensation for the second flow channel.

[0020] Optionally, the first air guiding cavity, the accommodating cavity and the dust collecting port are distributed along the length direction of the box body.

[0021] In this way, the gas can pass through the first flow channel more smoothly, avoiding the formation of cleaning dead corners in the accommodating cavity.

[0022] Optionally, the cleaning device further includes a blower, which is arranged on a side of the Hepa filter element away from the accommodation cavity. The blower communicates with the accommodation cavity through the air duct housing and the Hepa filter element in sequence; wherein, the air duct housing is connected to and supports the blower.

[0023] In this way, the blower can provide suction for the dust suction work of the cleaning device. The air duct housing can support the blower to ensure that the air pressure generated by the blower can be aligned with the air outlet. The air duct housing has a larger volume and more connection and support points. After supporting the blower, the vibration generated by the rotation of the fan blades in the blower can be effectively reduced.

[0024] Optionally, the box body further includes a fourth air guide cavity and a baffle. The fourth air guide cavity and the accommodation cavity are distributed along the length direction of the box body. The fourth air guide cavity communicates with the dust collection port. The baffle is movable and has a third position for blocking the accommodation cavity and a fourth position for opening the accommodation cavity;

[0025] When the cleaning device is docked with the base station, the airflow generated by the base station pushes the baffle from the third position to the fourth position through the dust collection port, so that the airflow enters the dust collection device of the base station from the accommodation cavity through the fourth air guide cavity and the dust collection port in sequence.

[0026] In this way, the airtightness during the operation of the cleaning device can be further ensured.

[0027] In a second aspect, an embodiment of the present application provides a cleaning device, which includes a machine body and the dust box described in any one of the above. The machine body has a mounting position, and the dust box is detachably mounted on the mounting position. The blower and the air duct housing are fixedly arranged on the machine body.

[0028] In a third aspect, an embodiment of the present application provides a cleaning system, which includes a base station and the cleaning device described above. The base station is used to supply power to the cleaning device and / or clean the cleaning device;

[0029] The base station includes an air flow generating component, a blowing channel and a suction channel. The blowing channel is docked with the air inlet, the suction channel is docked with the dust collection port, and the air flow generating component is used to generate a first air flow in the blowing channel and a second air flow in the suction channel.

[0030] In the embodiment of the present application, after the cleaning device docks with the base station, the airflow generated by the base station can enter the dust box through the air inlet. The airflow can open the switch member and discharge dust and other impurities in the dust box to the dust collection device of the base station through the first flow channel and the second flow channel respectively. At the same time, the airflow flowing along the second flow channel can reversely remove the dust and impurities on the HEPA filter screen, so that the HEPA filter screen remains clean. In this way, while the cleaning device realizes dust recovery at the base station, the HEPA filter screen can be cleaned through the air duct of the dust box, and the air purification effect of the HEPA filter screen can be ensured without adding an additional air duct. Description of the Drawings

[0031] Figure 1 Schematic structural diagram of the box body provided for an embodiment of this specification.

[0032] Figure 2 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0033] Figure 3 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0034] Figure 4 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0035] Figure 5 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0036] Figure 6 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0037] Figure 7 Another schematic structural diagram of the box body provided for an embodiment of this specification.

[0038] Figure 8 Provided for an embodiment of this specification Figure 2 Enlarged schematic structural diagram.

[0039] Figure 9 Schematic structural diagram of the cleaning device provided for an embodiment of this specification.

[0040] Figure 10 Schematic module structure diagram of the cleaning system provided for an embodiment of this specification.

[0041] Figure 11 Schematic structural diagram of the cleaning system provided for an embodiment of this specification.

[0042] Description of the Reference Numerals

[0043] 100, Dust box; 10, First flow channel; 11, Air inlet; 12, First air guide cavity; 13, Accommodation cavity; 14, Fourth air guide cavity; 15, Dust collection port; 20, Second flow channel; 21, Second air guide cavity; 22, Third air guide cavity; 23, Communication port; 24, Air duct housing; 25, Hepa filter element; 26, Air outlet; 30, Dust suction port; 40, Switching member; 41, Guide groove; 42, Sealing portion; 50, Accommodation space; 51, Guide rail; 52, Communication hole; 60, Fan; 70, Baffle; 80, Box body; 200, Cleaning device; 201, Machine body; 300, Cleaning system; 301, Base station; 302, Airflow generating assembly; 303, Blowing channel; 304, Suction channel. Detailed implementation manners

[0044] The following will clearly and completely describe the technical solutions in the embodiments of this specification with reference to the accompanying drawings in the embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments.

[0045] In this specification, the accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0046] Unless otherwise specified, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of this specification. The terms used in this specification are only for the purpose of describing specific implementation manners and are not intended to limit the scope of this specification. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items. The singular forms "a", "above-mentioned", and "the" used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0047] In the description of this specification, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of this specification, "a plurality of" means two or more unless otherwise specifically defined.

[0048] In the description of this specification, the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of simplifying the description of this specification, rather than indicating that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, that is, it cannot be understood as a limitation to this application.

[0049] In the description of this specification, unless otherwise clearly defined, terms such as "installation", "connection", "attachment", "fixation", "setting", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can also be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this specification can be understood according to specific circumstances.

[0050] Currently, the working principle of a floor sweeper for dust collection includes using an electric motor to drive the blades to rotate at high speed, generating negative pressure in a sealed dust box, sucking the surfaces of objects such as carpets and floors with dust debris, and the dust debris is sucked into the filter together with the air. The dust debris is filtered by the filter elements in the filter and collected by the dust box, and the filtered clean air is then discharged outside the floor sweeper body. In the related art, a HEPA (High Efficiency Particulate Air) filter can be used in the dust collection box to clean the space discharged from the dust box. Using a HEPA (High Efficiency Particulate Air) filter to deeply filter the discharged air can effectively improve the exhaust cleanliness, achieving a 0.3-micron particle filtration efficiency of 99.97%. However, in actual use, it faces significant technical bottlenecks: as the usage time accumulates, the fiber gaps of the HEPA filter will gradually be blocked by dust particles, resulting in problems such as increased air flow resistance, decreased filtration efficiency, and increased energy consumption. Therefore, only an additional air duct can be used to clean the side of the HEPA filter blocked by dust to ensure the cleaning function of the HEPA filter.

[0051] However, the introduction of an additional air duct will inevitably occupy the precious internal space of the floor sweeper, resulting in an increase in the overall volume of the machine or squeezing the layout space of other functional modules; the complex air duct structure will increase the production cost and assembly difficulty; the reverse dust cleaning effect is restricted by the internal space of the robot and is often difficult to achieve thorough cleaning, and still requires regular manual maintenance.

[0052] In an embodiment of the present application, after the cleaning device 200 is docked with the base station 301, the airflow generated by the base station 301 can enter the dust box 100 through the air inlet 11. The airflow can open the switch member 40 and discharge dust and other impurities in the dust box 100 to the dust collection device of the base station 301 through the first flow channel 10 and the second flow channel 20 respectively. At the same time, the airflow flowing along the second flow channel 20 can reversely remove the dust and impurities of the HEPA filter element 25, so that the HEPA filter element 25 remains clean. In this way, while the cleaning device 200 realizes dust recovery at the base station 301, the HEPA filter element 25 can be cleaned through the air duct of the dust box 100, and the air purification effect of the HEPA filter element 25 can be ensured without additionally increasing the air duct.

[0053] Please refer to Figures 1 to 4 An embodiment of the present application provides a dust box 100 for a cleaning device 200. The dust box 100 includes a box body 80, a HEPA filter element 25 and a switch member 40. An air inlet 11, a receiving cavity 13, a communication port 23, a dust collection port 15, a dust suction port 30 and an air outlet 26 are formed in the box body 80. Among them, the dust suction port 30 and the air outlet 26 are arranged on opposite sides of the receiving cavity 13; the HEPA filter element 25 is arranged on the side wall of the receiving cavity 13 and is docked with the air outlet 26; among them, the cleaning device 200 includes an air duct housing 24, and the air duct housing 24 is hermetically docked with the air outlet 26 and the communication port 23 respectively. When the cleaning device 200 works, it drives the airflow to flow from the dust suction port 30 through the receiving cavity 13, the air outlet 26 and the HEPA filter element 25 into the air duct housing 24; the switch member 40 is movably provided with a first position for blocking the air inlet 11 and a second position for opening the air inlet 11; the cleaning device 200 has a first flow channel 10 and a second flow channel 20. When the cleaning device 200 is docked with the base station 301, the airflow flowing out of the base station 301 pushes the switch member 40 from the first position to the second position through the air inlet 11. When the airflow passes through the first flow channel 10, it passes through the air inlet 11, the receiving cavity 13 and the dust collection port 15. When the airflow passes through the second flow channel 20, it passes through the air inlet 11, the communication port 23, the air duct housing 24, the air outlet 26, the HEPA filter element 25, the receiving cavity 13 and the dust collection port 15.

[0054] In this way, after the cleaning device 200 is docked with the base station 301, the airflow generated by the base station 301 can enter the dust box 100 through the air inlet 11. The airflow can open the switch member 40 and discharge dust and other impurities in the dust box 100 to the dust collection device of the base station 301 through the first flow channel 10 and the second flow channel 20 respectively. At the same time, the airflow flowing along the second flow channel 20 can reversely remove the dust and impurities on the HEPA filter element 25, so that the HEPA filter element 25 remains clean. In this way, while the cleaning device 200 realizes dust recovery at the base station 301, the HEPA filter element 25 can be cleaned through the air duct of the dust box 100, and the air purification effect of the HEPA filter element 25 can be ensured without additionally increasing the air duct.

[0055] Specifically, the dust suction port 30 and the air outlet 26 are arranged on opposite sides of the accommodation cavity 13. That is to say, if the dust suction port 30 is arranged on the front side of the accommodation cavity 13, the air outlet 26 is arranged on the rear side of the accommodation cavity 13. When the cleaning device 200 performs a dust suction operation, the airflow with dust is sucked into the accommodation cavity 13 through the dust suction port 30, and then the airflow passes through the HEPA filter element 25 in the accommodation cavity 13 and exits through the air outlet 26. Among them, the dust and impurities in the airflow cannot pass through the HEPA filter element 25 and are intercepted by the HEPA filter element 25 in the accommodation cavity 13 and concentrated together. In this way, the airflow is filtered into clean gas by the HEPA filter element 25, and the filtered clean gas is blown into the air duct housing 24 and finally discharged outside the device.

[0056] Furthermore, in order to prevent the HEPA filter element 25 from being blocked by dust during long-term dust suction operations and reduce the dust suction efficiency, the HEPA filter element 25 of the device can also be self-cleaned in this embodiment. After the device is docked with the base station 301, the base station 301 can generate an airflow, make the airflow blow towards the air inlet 11 and generate a certain pressure. The pressure pushes the switch member 40, so that the switch member 40 moves from the first position to the second position, thereby opening the air inlet 11. After the switch member 40 is opened, the first flow channel 10 and the second flow channel 20 are exposed. Among them, a part of the gas enters the first flow channel 10 and successively passes through the accommodation cavity 13 and the dust collection port 15 of the first flow channel 10. At this time, the rapidly flowing airflow will form a low pressure in the accommodation cavity 13. The low-pressure airflow will adsorb the dust in the accommodation cavity 13 and flow towards the dust collection port 15, and finally discharge the dust and other impurities in the accommodation cavity 13 of the dust box 100 to the dust collection device of the base station 301. At the same time, the low pressure formed by the rapidly flowing gas will also suck away some of the dust on the HEPA filter element 25, relieve the blockage of the HEPA filter element 25 by dust, and improve the dust suction effect of the device.

[0057] Further, a part of the gas enters the first flow channel 10, and another part of the air flow enters the second flow channel 20. And the other part of the air flow blows to the reverse side of the Hepa filter element 25 after passing through the communication port 23, the air duct housing 24, and the air outlet 26 of the second flow channel 20 in sequence, blowing the dust clogging the Hepa filter element 25 into the accommodation cavity 13 in the reverse direction, and converging with the previous part of the air flow, and together blowing into the dust collection port 15, discharging the dust and other impurities in the dust box 100 to the dust collection device of the base station 301. In this way, the air flow in the first flow channel 10 quickly flows through the front side of the Hepa filter element 25, providing a low-pressure suction force for the front side of the Hepa filter element 25, and sucking away the dust clogging the Hepa filter element 25; the second flow channel 20 enables the air flow to pass through the Hepa filter element 25 from the reverse side of the Hepa filter element 25 to the front side, blowing away the dust clogging the Hepa filter element 25. In this way, the dust on the Hepa filter element 25 can be cleaned under the dual action of the suction force on the front side and the thrust on the reverse side. At the same time, compared with the existing Hepa self-cleaning technology, the first flow channel is also retained in this embodiment. The first flow channel can discharge the dust and other impurities in the accommodation cavity 13 to the dust collection device of the base station 301, so that there is no dead angle when the dust box 100 collects dust.

[0058] In some embodiments, the air duct housing 24 and the box body 80 are detachably connected together to achieve the sealed docking of the air duct housing 24 with the air outlet 26 and the communication port 23 respectively. When needed, the box body 80 can be detached from the air duct housing 24 and taken out from the cleaning device 200 to manually clean the box body 80. After the box body 80 is placed back into the cleaning device 200, the air duct housing 24 can be connected to the box body 80 to realize the sealed docking of the air outlet 26 and the communication port 23 again.

[0059] In other embodiments, the air duct housing 24 and the box body 80 can be an integrally formed structural member to ensure a good sealing effect between the air duct housing 24 and the box body 80. After the air flow enters the air duct housing 24 from the communication port 23, it can directly pass through the air outlet 26 and the Hepa filter element 25 along the air duct housing 24 and enter the accommodation cavity 13, and there will be no gap between the air duct housing 24 and the box body 80. At this time, when needed, the box body 80 and the air duct housing 24 can be taken out from the cleaning device 200 together to manually clean the box body 80. Then, the box body 80 and the air duct housing 24 can be placed back into the corresponding positions of the cleaning device 200 at the same time.

[0060] Please refer to Figure 5 and Figure 6 . In some embodiments, the box body 80 includes an accommodation space 50 for accommodating the movement of the switch member 40. The switch member 40 can slide along the height direction of the box body 80 in the accommodation space 50 to block or open the air inlet 11.

[0061] In this way, the cleaning device 200 can be switched between different modes, and good airtightness can be ensured when the cleaning device 200 is working.

[0062] In this embodiment, the box body 80 is provided with an accommodation space 50, and the switch member 40 can slide along the height direction of the box body 80 within the accommodation space 50, so that the switch member 40 moves between a first position and a second position. When the device starts the dust suction operation, the switch member 40 is located at the first position, blocking the air inlet 11, that is to say, blocking the first flow channel 10 and the second flow channel 20, ensuring the airtightness during operation and preventing the suction force from leaking through the first flow channel 10 and the second flow channel 20 during dust suction. At the same time, the low-pressure suction force generated during the dust suction operation is transmitted to the switch member 40 through the first flow channel 10 and the second flow channel 20, adsorbing the switch member 40 to the first position, so that the switch member 40 further seals the air inlet 11, further ensuring the airtightness of the cleaning device 200 during dust suction. When the device enters the self-cleaning mode after being docked with the base station 301, the switch member 40 is located at the second position, opening the air inlet 11, so that air flow can pass through the first flow channel 10 and the second flow channel 20 to discharge dust and other impurities in the dust box 100 to the dust collection device of the base station 301.

[0063] Please refer to Figure 2 、 Figure 5 and Figure 6 。In some embodiments, the switch member 40 includes a sealing portion 42. When the switch member 40 is located at the first position, the sealing portion 42 cooperates with the box body 80 to block the air inlet 11. When the switch member 40 is located at the second position, the sealing portion 42 opens the air inlet 11.

[0064] In this way, the sealing portion 42 can ensure stronger airtightness when the cleaning device 200 is working.

[0065] In the embodiment of the present application, the type of the sealing portion 42 is not limited to meet various requirements. For example, the sealing portion 42 can be an elastic element (such as rubber) for preventing fluid leakage. The shape of the sealing portion 42 should fit the bottom edge of the switch member 40 to ensure effective blocking of the air inlet 11 and stronger airtightness when the cleaning device 200 is working.

[0066] Please refer to Figure 2 、 Figure 5 、 Figure 6 and Figure 7 。In some embodiments, the accommodation space 50 is formed with a guide rail 51 along the height direction of the box body 80, and the switch member 40 is formed with a guide groove 41. The guide rail 51 is arranged in the guide groove 41 to limit the movement of the switch member 40 along the height direction of the box body 80. Among them, in the height direction of the box body 80, the air inlet 11 is located below the switch member 40;

[0067] When the cleaning device 200 is docked with the base station 301, the airflow flowing out of the base station 301 pushes the switch component 40 from the first position to the second position through the air inlet 11, so that the sealing part 42 moves away from and opens the air inlet 11; when the airflow of the base station 301 stops, the switch component 40 moves from the second position to the first position under the action of its own gravity, so that the sealing part 42 blocks the air inlet 11.

[0068] In this way, the switch member 40 can slide smoothly between the first position and the second position.

[0069] In this embodiment, when the cleaning device 200 is docked with the base station 301, the HEPA filter element 25 can be self-cleaned. At this point, the base station 301 generates airflow and pushes the switch element 40 upward through the air inlet 11. Specifically, a guide rail 51 is formed within the accommodating space 50, extending along the height of the housing 80. The switch element 40 is also formed with a guide groove 41 that mates with the guide rail 51. Thus, the guide rail 51 within the accommodating space 50 defines the movement path of the switch element 40, restricting it to movement within the accommodating space 50 along the height of the housing 80. In other words, when the HEPA filter element 25 is self-cleaned, the base station 301 generates airflow and pushes the switch element 40 upward through the air inlet 11, causing the switch element 40, located in a first position, to move upward within the accommodating space 50 along the height of the housing 80 to a second position, exposing the first flow channel 10 and the second flow channel 20. At the same time, the sealing portion 42 also moves upward with the switch member 40, so that the sealing portion 42 is away from the air inlet 11, releasing the seal on the air inlet 11, and allowing the air flow to enter the first flow channel 10 and the second flow channel 20 of the box body 80 through the air inlet 11, thereby achieving the above-mentioned self-cleaning effect on the HEPA filter element 25 and the accommodating cavity 13.

[0070] Furthermore, when the self-cleaning process of the HEPA filter element 25 and the accommodating chamber 13 is complete, the base station 301 no longer generates airflow. At this point, the switch element 40 is no longer pushed upward by the airflow, causing the switch element 40 and the sealing portion 42 to fall back to the first position due to their own gravity, once again blocking the air inlet 11 and the first and second flow channels 10, 20, preparing for dust collection. The self-cleaning process is now complete.

[0071] See also Figure 1 、 Figure 5 and Figure 8. In some embodiments, the housing 80 further includes a first air guiding cavity 12, a second air guiding cavity 21, and a third air guiding cavity 22. The first air guiding cavity 12 and the second air guiding cavity 21 are distributed along the length direction of the housing 80, and the second air guiding cavity 21 and the third air guiding cavity 22 are distributed along the width direction of the housing 80. The third air guiding cavity 22 is respectively communicated with the second air guiding cavity 21 and the communication port 23. When the switch member 40 moves to the second position, the air inlet 11 is respectively communicated with the first air guiding cavity 12 and the second air guiding cavity 21; when the cleaning device 200 is docked with the base station 301, the airflow flowing out of the base station 301 pushes the switch member 40 from the first position to the second position through the air inlet 11. When the airflow passes through the first flow channel 10, it passes through the air inlet 11, the first air guiding cavity 12, the accommodating cavity 13, and the dust collection port 15. When the airflow passes through the second flow channel 20, it passes through the air inlet 11, the second air guiding cavity 21, the third air guiding cavity 22, the communication port 23, the air duct housing 24, the air outlet 26, the HEPA filter element 25, the accommodating cavity 13, and the dust collection port 15.

[0072] In this way, the airflow can achieve different working contents through different air guiding cavities in different flow channels.

[0073] In this embodiment, after the airflow generated by the base station 301 enters the air inlet 11, a part of the airflow enters the first flow channel 10, and the other part of the airflow enters the second flow channel 20. The airflow in the first flow channel 10 sequentially passes through the first air guiding cavity 12, the accommodating cavity 13, and the dust collection port 15. The airflow in the second flow channel 20 sequentially passes through the second air guiding cavity 21, the third air guiding cavity 22, the communication port 23, the air duct housing 24, the air outlet 26, the HEPA filter element 25, the accommodating cavity 13, and the dust collection port 15. Among them, the air inlet 11, the accommodating cavity 13, and the dust collection port 15 are the common parts of the two flow channels. At the same time, by providing the first air guiding cavity 12, the second air guiding cavity 21, and the third air guiding cavity 22 in the housing 80, the structural strength of the housing 80 itself can be improved, and the strength and service life of the housing 80 can be increased.

[0074] Further, the first air guiding cavity 12 and the second air guiding cavity 21 are distributed along the length direction of the housing 80, and the first air guiding cavity 12 is arranged on the side close to the accommodating cavity 13 and is arranged in an inverted "L" shape around the air inlet 11, and the second air guiding cavity 21 is arranged on the side far from the accommodating cavity 13 and is arranged in an "l" shape. The third air guiding cavity 22 of the second flow channel 20 and the second air guiding cavity 21 of the second flow channel 20 are distributed along the width direction of the housing 80. In this way, the airflow can flow along the width direction of the housing 80 through the second air guiding cavity 21 and the third air guiding cavity 22 to the side of the housing 80 and flow to the communication port 23, and then the airflow flows into the air duct housing 24 on the side of the housing 80, bypasses to the reverse side of the HEPA filter element 25, blows the dust particles blocking the HEPA filter element 25 to the front accommodating cavity 13 from the reverse side, and then the dust particles are blown into the dust collection port 15 along with the airflow and are discharged to the dust collection device of the base station 301.

[0075] Furthermore, if the first air guide cavity 12 is directly communicated with the accommodation cavity 13, due to the influence of the reverse blowing of the air flow in the second flow channel 20, the gas and dust in the accommodation cavity 13 may flow back into the first air guide cavity 12, causing the dust to spread from the first air guide cavity 12 to various parts of the base station 301 and the second flow channel 20, increasing the cleaning difficulty and affecting the user experience. Therefore, it is necessary to provide a filter screen (not marked in the figure) between the first air guide cavity 12 and the accommodation cavity 13 to prevent the dust in the accommodation cavity 13 from flowing back into the first air guide cavity 12 and improve the user experience.

[0076] Please refer to Figure 5 and Figure 6 , in some embodiments, the box body 80 is further formed with a communication hole 52, the communication hole 52 communicates the accommodation space 50 and the third air guide cavity 22, and the communication hole 52 is avoided when the switch member 40 is in the second position.

[0077] In this way, the air flow in the accommodation space 50 can enter the third air guide cavity 22 through the communication hole 52, so that the switch member 40 can rise along the guide rail 51 to the second position under the action of the air flow to open the first flow channel 10 and the second flow channel 20. When the air flow at the air inlet 11 is too large, the switch member 40 can be pushed to continuously rise to expose the communication hole 52. At this time, the second flow channel 20 forms a double channel to transmit the air flow, providing appropriate air flow compensation for the second flow channel 20.

[0078] In this embodiment, a cover plate is further provided above the dust box 100 to enclose the spaces through which the air flow and dust in the dust box 100 such as the accommodation cavity 13, the first flow channel 10, the second flow channel 20 and the accommodation space 50 pass. In this way, the enclosed space can prevent the suction from leaking and prevent the dust from leaking out, bringing a good user experience to the user. However, in the enclosed accommodation space 50, when the switch member 40 similar to a piston moves upward from the first position, the gas in the accommodation space 50 will be compressed, forming a higher air pressure in the accommodation space 50, and the air pressure will generate a pressure to press the switch member 40, making it difficult for the switch member 40 to rise. Similarly, when the switch member 40 descends from the second position, it will also be difficult for the switch member 40 to descend because there is too little gas in the accommodation space 50 to suck it. Therefore, it is necessary to provide a communication hole 52 in the accommodation space 50, and the communication hole 52 communicates the accommodation space 50 and the third air guide cavity 22. In this way, when the switch member 40 rises, the gas in the accommodation space 50 can be squeezed into the third air guide cavity 22 through the communication hole 52, reducing the air pressure in the accommodation space 50 and making it easier for the switch member 40 to move to the second position. Similarly, when the switch member 40 descends, the gas in the third air guide cavity 22 can be sucked back into the accommodation space 50 through the communication hole 52 to supplement the gas into the accommodation space 50, making it easier for the switch member 40 to fall back to the first position. [[ID=!6]]

[0079] Furthermore, because the third air guide cavity 22 is connected to the entire second flow channel 20, the air in the accommodating space 50 can change more significantly, making it easier to move the switch 40. At the same time, because the third air guide cavity 22 is connected to the second air guide cavity 21, and the second air guide cavity 21 is located at the bottom of the switch 40, when the switch 40 rises, the air in the accommodating space 50 can also pass through the connecting hole 52, the third air guide cavity 22, and the second air guide cavity 21 to be blown toward the bottom of the switch 40, assisting the switch 40 in rising. Alternatively, when the switch 40 descends, the air at the bottom of the switch 40 (or the air at the air inlet 11) can also pass through the second air guide cavity 21, the third air guide cavity 22, and the connecting hole 52 to be sucked back into the accommodating space 50, assisting the switch 40 in descending.

[0080] Furthermore, since the second flow channel 20 has a large curvature, many turns, and a long flow channel, there is a risk of poor gas circulation in the second flow channel 20. To this end, the accommodating space 50, the connecting hole 52, and the third air guide cavity 22 can be used to form a branch airflow channel of the second flow channel 20. Specifically, the airflow generated by the base station 301 can be blown in from the air inlet 11, pushing open the switch member 40 in the accommodating space 50, so that the switch member 40 moves to the second position, opening the air inlet 11, so that the airflow can flow through the main airflow channel of the second flow channel 20: the air inlet 11, the second air guide cavity 21, the third air guide cavity 22, and the connecting port 23. At the same time, the opened switch member 40 is in the second position and avoids the connecting hole 52, so that the second flow channel 20 can also form a branch airflow channel of the airflow: the air inlet 11, the accommodating space 50, the third air guide cavity, and the connecting port 23. In this way, the branch air flow channel can provide appropriate air flow compensation for the main air flow channel, so that the gas flow in the second flow channel 20 is smoother, and a more sufficient air flow volume is provided for the second flow channel 20.

[0081] It should be noted that, in the embodiment of the present application, the first position refers to the position where the air inlet 11 can be blocked, and the second position refers to the switch member 40 leaving the first position to open the air inlet 11 in any position range within the accommodating space 50 .

[0082] See also Figure 1 and Figure 8 In some embodiments, the first air guiding cavity 12 , the accommodating cavity 13 and the dust collecting port 15 are distributed along the length direction of the box body 80 .

[0083] In this way, the gas can pass through the first flow channel 10 more smoothly, avoiding the formation of cleaning dead corners in the accommodating cavity 13.

[0084] In this embodiment, since the first air guide cavity 12, the accommodation cavity 13, and the dust collection port 15 of the first flow channel 10 are all distributed along the length direction of the box body 80, each component of the first flow channel 10 is connected into a relatively straight airflow channel, reducing the airflow resistance, making the gas flow more smoothly in the first flow channel 10, and improving the self-cleaning efficiency of the cleaning device 200. At the same time, the dust in all the accommodation cavities 13 can be blown into the dust collection port 15 to avoid cleaning dead corners in the accommodation cavities 13.

[0085] Please refer to Figure 2 and Figure 3 , in some embodiments, the cleaning device 200 further includes a fan 60. The fan 60 is arranged on the side of the Hepa filter element 25 away from the accommodation cavity 13. The fan 60 is connected to the accommodation cavity 13 through the air duct housing 24 and the Hepa filter element 25 in sequence; wherein, the air duct housing 24 is connected to and supports the fan 60.

[0086] In this way, it is convenient for the fan 60 to provide suction force for the dust suction work of the cleaning device 200.

[0087] In this embodiment, when the cleaning device 200 is performing dust suction work on the ground, the fan 60 starts to operate and generates a low-pressure suction force, which is then transmitted to the air duct housing 24 connected to the fan 60, and then the low-pressure suction force is transmitted by the air duct housing 24 to the reverse side of the Hepa filter element 25. The low-pressure suction force then passes through the Hepa filter element 25 and is transmitted to the front side of the Hepa filter element 25, and then the low-pressure suction force is transmitted to the dust suction port 30 through the accommodation cavity 13, facilitating the cleaning device 200 to suck up the dust on the ground. At the same time, by connecting and supporting the fan 60 through the air duct housing 24, the fan 60 is fixedly connected to the box body 80, facilitating the fan 60 to provide a low-pressure suction force for the cleaning device 200 and bringing a good user experience to the user.

[0088] Specifically, after the fan 60 is arranged inside the cleaning device 200, it can be fixedly connected to the air duct housing 24 through connectors such as bolts or screws. At this time, the air duct housing 24 can support the fan 60 to ensure that the wind pressure generated by the fan 60 can be aligned with the air outlet 26. The air duct housing 24 has a larger volume and more connection and support points, and can effectively reduce the vibration generated by the rotation of the fan blades in the fan 60 after supporting the fan 60.

[0089] Please refer to Figure 3 , Figure 4 and Figure 8, in some embodiments, the cartridge body 80 further includes a fourth air guiding cavity 14 and a baffle 70. The fourth air guiding cavity 14 and the accommodating cavity 13 are distributed along the length direction of the cartridge body 80. The fourth air guiding cavity 14 communicates with the dust collection port 15. The baffle 70 is movable and has a third position for blocking the accommodating cavity 13 and a fourth position for opening the accommodating cavity 13. When the cleaning device 200 is docked with the base station 301, the airflow generated by the base station 301 pushes the baffle 70 from the third position to the fourth position through the dust collection port 15, so that the airflow can enter the dust collection device of the base station 301 from the accommodating cavity 13 through the fourth air guiding cavity 14 and the dust collection port 15 in sequence.

[0090] In this way, the airtightness of the cleaning device 200 during operation can be further ensured.

[0091] In this embodiment, the accommodating cavity 13 and the dust collection port 15 are communicated through the fourth air guiding cavity 14, and a baffle 70 for blocking or opening the accommodating cavity 13 is provided at the connection between the accommodating cavity 13 and the fourth air guiding cavity 14. Specifically, when the cleaning device 200 is docked with the base station 301 and self-cleaning is performed, the airflow flows through the first flow channel 10 and the second flow channel 20, and the two parts of the airflow converge in the accommodating cavity 13 and form a certain pressure in the accommodating cavity 13, pushing open the baffle 70 of the accommodating cavity 13 and moving the baffle 70 from the third position to the fourth position. In this way, the airflow in the accommodating cavity 13 can flow to the fourth air guiding cavity 14 and enter the dust collection port 15 from the fourth air guiding cavity 14, facilitating the cleaning of the HEPA filter element 25 and the accommodating cavity 13.

[0092] Further, when the self-cleaning work is over, the base station 301 no longer generates airflow, and there is no airflow in the first flow channel 10 and the second flow channel 20 of the cleaning device 200. Under the action of its own gravity, the baffle 70 falls from the fourth position back to the third position, blocking the accommodating cavity 13. At this time, if the cleaning device 200 is used for vacuuming the ground, the fan 60 will generate a low-pressure suction force, and the low-pressure suction force will be transmitted step by step to the accommodating cavity 13, so that the accommodating cavity 13 has a low-pressure suction force. Since the baffle 70 has fallen at this time, blocking the channel from the accommodating cavity 13 to the fourth air guiding cavity 14, the suction force cannot leak to the fourth air guiding cavity 14. At this time, only the dust suction port 30 in the entire accommodating cavity 13 is open, and the low-pressure suction force in the accommodating cavity 13 can only be transmitted to the dust suction port 30, so that the dust suction port 30 has a low-pressure suction force for vacuuming work. In this way, the airtightness of the cleaning device 200 during vacuuming work can be further ensured.

[0093] Please refer to Figure 9 . The embodiment of the present application further provides a cleaning device 200, including a machine body 201 and the dust box 100 of any one of the above. The machine body 201 has a mounting position, and the dust box 100 is detachably mounted on the mounting position. The fan 60 and the air duct housing 24 are fixedly arranged on the machine body 201.

[0094] In the embodiments of the present application, the type of the cleaning device 200 is not limited to meet various requirements. The cleaning device 200 may be an environmental cleaning device 200 such as a floor washer or a mopping machine. The cleaning device 200 includes the dust box 100 of any of the above embodiments. Therefore, it can have all the technical features and technical effects of the dust box 100, so that the cleaning device 200 has good cleaning and self-cleaning effects, and has good operation stability and service life, improving the user experience.

[0095] In this embodiment, the cleaning device 200 may adopt a modular design, so that the dust box 100 can be detachably installed on the installation position of the body 201, and the dust box 100 of any of the above embodiments can be quickly disassembled and assembled, which is convenient for the later maintenance and replacement of the dust box 100. At the same time, the fan 60 and the air duct housing 24 are fixedly arranged on the body 201 to form a non-detachable structure, ensuring the airtightness of the cleaning device 200, facilitating the fan 60 to provide strong low-pressure suction for the cleaning device 200, and having good operation stability and service life, improving the user experience.

[0096] Please refer to Figure 10 and Figure 11 . A cleaning system 300 includes a base station 301 and the above-mentioned cleaning device 200. The base station 301 is used to supply power to the cleaning device 200 and / or clean the cleaning device 200. The base station 301 includes an air flow generating component 302, a blowing channel 303 and a suction channel 304. The blowing channel 303 is connected to the air inlet 11, and the suction channel 304 is connected to the dust collection port 15. The air flow generating component 302 is used to generate a first air flow in the blowing channel 303 and a second air flow in the suction channel 304.

[0097] In the embodiments of the present application, the type of the cleaning system 300 is not limited to meet various requirements. The cleaning system 300 includes a base station 301 and the above-mentioned cleaning device 200. The base station 301 is used to supply power to the cleaning device 200 and / or clean the cleaning device 200. The cleaning system 300 can have all the technical features and technical effects of the above-mentioned cleaning device 200, so that the cleaning system 300 has good cleaning and self-cleaning effects, and has good operation stability and service life, improving the user experience.

[0098] In this embodiment, after the cleaning device 200 is docked with the base station 301, the air blowing channel 303 of the base station 301 is docked with the air inlet 11 of the cleaning device 200, and the air suction channel 304 of the base station 301 is docked with the dust collection port 15 of the cleaning device 200. In this way, when the base station 301 generates an air flow through the air flow generating component 302, the air flow blows out of the base station 301 through the air blowing channel 303 and blows into the air inlet 11. The air flow blows into the cleaning device 200 from the air inlet 11 to self-clean the dust box 100 of the cleaning device 200. At the same time, when the base station 301 generates an air flow through the air flow generating component 302, the air flow generating component 302 also generates a low-pressure suction force at the air suction channel 304 of the base station 301 and transmits the low-pressure suction force to the dust collection port 15 of the cleaning device 200 to suck away dust and other sundries in the dust box 100, completing the self-cleaning work. That is to say, when the air flow generating component 302 works, it will generate a blowing force and a suction force on the air blowing channel 303 and the air suction channel 304 respectively, so that the air flow blows out from the air blowing channel 303 and is sucked back from the air suction channel 304 to complete the closed-loop of the air flow, and the dust and other sundries in the dust box 100 are quickly discharged to the dust collection device of the base station 301 under the dual action of the blowing force and the suction force. The air flow generating component 302 can also be two independent fans, which generate air flows in the air blowing channel 303 and the air suction channel 304 respectively.

[0099] In the above embodiments, the descriptions of the various embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0100] For the functions and effects of this embodiment, reference can be made to the foregoing embodiments for explanation and will not be elaborated here.

[0101] It can be understood that in the various embodiments of this specification, the magnitudes of the sequence numbers of the various processes do not mean the order of execution. The order of execution of the various processes should be determined by their functions and internal logics, and should not constitute any limitation to the implementation processes of the embodiments of this specification.

[0102] It can be understood that the various embodiments described in this specification can be implemented alone or in combination, and this specification does not limit this.

[0103] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0104] The above are only specific embodiments of this specification, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this specification can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A dust box, characterized in that, For a cleaning device, including: A box body, in which an air inlet, a receiving cavity, a communication port, a dust collection port, a dust suction port and an air outlet are formed. Among them, the dust suction port and the air outlet are arranged on opposite sides of the receiving cavity; A Hepa filter element, arranged on the side wall of the receiving cavity and docked with the air outlet; wherein, the cleaning device includes an air duct housing, and the air duct housing is hermetically docked with the air outlet and the communication port respectively. When the cleaning device works, it drives air flow to flow from the dust suction port through the receiving cavity, the Hepa filter element and the air outlet into the air duct housing; A switch member, movably having a first position for blocking the air inlet and a second position for opening the air inlet; The cleaning device has a first flow channel and a second flow channel. When the cleaning device is docked with the base station, the air flow flowing out of the base station pushes the switch member from the first position to the second position through the air inlet. When the air flow passes through the first flow channel, it passes through the air inlet, the receiving cavity and the dust collection port. When the air flow passes through the second flow channel, it passes through the air inlet, the communication port, the air duct housing, the air outlet, the Hepa filter element, the receiving cavity and the dust collection port.

2. The dust box according to claim 1, characterized in that, The box body includes a receiving space for accommodating the movement of the switch member, and the switch member can slide along the height direction of the box body in the receiving space to block or open the air inlet.

3. The dust box according to claim 2, wherein The switch member includes a sealing portion. When the switch member is in the first position, the sealing portion cooperates with the box body to block the air inlet. When the switch member is in the second position, the sealing portion opens the air inlet.

4. The dust box according to claim 3, wherein, The receiving space is formed with a guide rail along the height direction of the box body, and the switch member is formed with a guide groove. The guide rail is arranged in the guide groove to limit the movement of the switch member along the height direction of the box body. Among them, in the height direction of the box body, the air inlet is located below the switch member; When the cleaning device is docked with the base station, the air flow flowing out of the base station pushes the switch member from the first position to the second position through the air inlet, so that the sealing portion moves away from and opens the air inlet; when the air flow of the base station stops, the switch member moves from the second position to the first position under the action of its own gravity, so that the sealing portion blocks the air inlet.

5. The dust box according to claim 2, wherein The box body further includes a first air guiding cavity, a second air guiding cavity and a third air guiding cavity. The first air guiding cavity and the second air guiding cavity are distributed along the length direction of the box body, and the second air guiding cavity and the third air guiding cavity are distributed along the width direction of the box body. The third air guiding cavity communicates with the second air guiding cavity and the communication port respectively. Among them, when the switch member moves to the second position, the air inlet communicates with the first air guiding cavity and the second air guiding cavity respectively; When the cleaning device is docked with the base station, the airflow flowing out of the base station pushes the switch from the first position to the second position through the air inlet, and the airflow passes through the air inlet, the first air guide cavity, the accommodating cavity and the dust collecting port when passing through the first flow channel. When the airflow passes through the second flow channel, it passes through the air inlet, the second air guide cavity, the third air guide cavity, the connecting port, the air duct housing, the air outlet, the HEPA filter, the accommodating cavity and the dust collecting port.

6. The dust box according to claim 5, characterized in that, The box body is further formed with a communication hole, which connects the accommodating space and the third air guide cavity, and avoids the communication hole when the switch is located at the second position.

7. The dust box according to claim 5, characterized in that, The first air guiding cavity, the accommodating cavity and the dust collecting port are distributed along the length direction of the box body.

8. The dust box according to claim 1, characterized in that, The cleaning device also includes a fan, which is arranged on a side of the HEPA filter element away from the accommodating cavity. The fan is connected to the accommodating cavity through the air duct housing and the HEPA filter element in sequence; wherein the air duct housing is connected to and supports the fan.

9. The dust box according to claim 1, wherein The box body further includes a fourth air guide cavity and a baffle, wherein the fourth air guide cavity and the accommodating cavity are distributed along the length direction of the box body, the fourth air guide cavity is connected to the dust collection port, and the baffle is movable to have a third position for blocking the accommodating cavity and a fourth position for opening the accommodating cavity; When the cleaning device is docked with the base station, the airflow generated by the base station pushes the baffle from the third position to the fourth position through the dust collection port, so that the airflow passes from the accommodating cavity through the fourth air guide cavity and the dust collection port in sequence into the dust collection device of the base station.

10. A cleaning device, characterized in that, The invention comprises a body and a dust box according to any one of claims 1 to 9, wherein the body has a mounting position, the dust box is detachably mounted on the mounting position, and the fan and the air duct housing are fixedly arranged on the body.

11. A cleaning system, characterized in that, It comprises a base station and the cleaning device described in 10, wherein the base station is used to supply power to the cleaning device and / or clean the cleaning device; The base station includes an airflow generating component, a blowing channel and a suction channel. The blowing channel is connected to the air inlet, and the suction channel is connected to the dust collection port. The airflow generating component is used to generate a first airflow in the blowing channel and a second airflow in the suction channel.

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