Cleaning device, base station and cleaning system

Abstract

The utility model relates to cleaning tool technical field, specifically disclose a kind of cleaning equipment, base station and cleaning system, cleaning equipment has working mode and self-cleaning mode, cleaning equipment includes: main body, dust cup assembly and suction device, main body has for inlet air duct and for the backflow air duct of intercommunication base station;Dust cup assembly is configured to filter the airflow of inlet air duct, dust cup assembly has ash outlet, ash outlet is configured to be closed in working mode and intercommunication base station in self-cleaning mode;Suction device is configured to intercommunication dust cup assembly in working mode, and intercommunication backflow air duct in self-cleaning mode;Wherein, at least a portion of backflow air duct is set around inlet air duct. According to the cleaning equipment of the utility model embodiment, make full use of the space around inlet air duct, make the structure of cleaning equipment compact, and ensure that backflow air duct has enough large flow area, reduce the resistance of airflow in backflow process.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202510363243.X, filed on March 25, 2025, entitled "Cleaning Equipment, Base Station and Cleaning System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of cleaning tool technology, and in particular to a cleaning device, base station and cleaning system. Background Technology

[0004] Cleaning equipment typically includes a separation device, a suction head, a suction device, and a dust cup. The suction head draws in external dirt and directs it into the dust cup, where the separation device separates it, allowing the dirt to remain in the dust cup. The separated clean airflow flows out of the separation device, enters the suction device, and is then discharged from the cleaning equipment, forming an airflow cycle for cleaning. In related technologies, base stations are used to clean the dirt from the dust cup of the cleaning equipment, reducing the user's operational burden. However, base stations usually require additional structures such as motors to create negative pressure within the base station, making the overall structure of the base station complex and increasing the cost of the entire cleaning system. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a cleaning device that can generate a suction negative pressure within a base station using its suction device, thereby achieving self-cleaning of the cleaning device, while also making the cleaning device's structure compact.

[0006] Another objective of this invention is to provide a base station.

[0007] Another objective of this invention is to provide a cleaning system.

[0008] According to a first aspect of the present invention, the cleaning device has a working mode and a self-cleaning mode. The cleaning device includes: a main body, a dust cup assembly, and a suction device. The main body has an air inlet duct and a return air duct for connecting to a base station. The dust cup assembly is in fluid communication with the air inlet duct and has a dust discharge port. The dust discharge port is configured to be closed in the working mode and connected to the base station in the self-cleaning mode. The suction device is configured to connect to the dust cup assembly in the working mode and to connect to the return air duct in the self-cleaning mode. At least a portion of the return air duct surrounds the air inlet duct.

[0009] According to the present invention, the cleaning device is provided with a return air duct on the main body, which facilitates the generation of suction negative pressure in the base station by means of the suction device of the cleaning device. No motor is required on the base station, and the cleaning device can be self-cleaned. At least a part of the return air duct surrounds the air inlet air duct, making full use of the space around the air inlet air duct, making the structure of the cleaning device compact, and ensuring that the return air duct has a sufficiently large flow area to reduce the resistance of airflow during the return process.

[0010] In addition, the cleaning device according to the above embodiments of the present invention may also have the following additional technical features:

[0011] In some embodiments, the air inlet duct includes an air inlet section and an air outlet section that are interconnected, the air inlet section being configured to connect to the cleaning accessory, the air outlet section being configured to connect to the dust cup assembly, and the return air duct including a first section that surrounds the side of the air outlet section away from the dust cup assembly.

[0012] In some embodiments, the return air duct further includes a second section, which connects to the first section and surrounds the outside of the air inlet section.

[0013] In some embodiments, the inlet of the return air duct is located on the side of the air inlet air duct near the dust cup assembly.

[0014] In some embodiments, at least a portion of the return air duct is arranged in a generally "U"-shaped cross-sectional shape to partially surround the outside of the air inlet air duct.

[0015] According to a second aspect of the present invention, the cleaning device has a working mode and a self-cleaning mode. The cleaning device includes a main body, a dust cup assembly, and a suction device. The main body includes a connecting pipe with an air inlet duct. The main body also has a return air duct for connecting to a base station. At least a portion of the return air duct is located in the connecting pipe and extends along the extension direction of the air inlet duct. The dust cup assembly is configured to be in fluid communication with the air inlet duct. The dust cup assembly has a dust discharge port, which is configured to be closed in the working mode and connected to the base station in the self-cleaning mode. The suction device is configured to connect to the dust cup assembly in the working mode and to connect to the return air duct in the self-cleaning mode.

[0016] In some embodiments, at least a portion of the return air duct surrounds the inlet air duct.

[0017] In some embodiments, at least a portion of the return air duct is disposed semi-enclosed on the outside of the air inlet air duct in a generally "U" shaped cross-section.

[0018] In some embodiments, the connecting pipe includes a first pipe body and a second pipe body, at least a portion of the first pipe body is disposed inside the second pipe body, the first pipe body defines the air inlet duct, and the second pipe body and the first pipe body define the return air duct.

[0019] In some embodiments, the main body further includes a first connector, which is disposed along the axis of the connecting pipe and communicates with the air inlet duct;

[0020] The main body also includes a second connector, which is located on the side of the connecting pipe and between the connecting pipe and the dust cup assembly. The second connector is connected to the return air duct.

[0021] In some embodiments, the air inlet duct and the air return duct are arranged side by side.

[0022] According to an embodiment of the present invention, the base station has a bypass ventilation duct for connecting to the return air duct of the aforementioned cleaning equipment. The base station also includes a dust bag. In the self-cleaning mode, the dust discharge port is in fluid communication with the dust bag, and the bypass ventilation duct is in fluid communication with the dust bag, so as to generate negative pressure inside the dust bag.

[0023] The cleaning system according to an embodiment of the present invention includes: the aforementioned cleaning equipment and a base station, wherein the base station is detachably connected to the cleaning equipment.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cleaning equipment according to an embodiment of the present invention.

[0026] Figure 2 This is a cross-sectional schematic diagram of the cleaning equipment according to an embodiment of the present utility model.

[0027] Figure 3 This is a cross-sectional schematic diagram of the cleaning equipment according to an embodiment of the present utility model.

[0028] Figure 4 This is a cross-sectional schematic diagram of a cleaning device according to another embodiment of the present invention.

[0029] Figure 5 This is a partial schematic diagram of the cleaning equipment according to an embodiment of the present utility model.

[0030] Figure 6 This is a schematic diagram of a base station according to an embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram of the cleaning system according to an embodiment of the present invention.

[0032] Figure 8 This is a cross-sectional schematic diagram of the cleaning system according to an embodiment of the present invention.

[0033] Figure label:

[0034] Cleaning system 1000, cleaning equipment 100, main body 10, air inlet duct 11, air inlet section 111, air outlet section 112, return air duct 12, inlet 12a, first section 121, second section 122, connecting pipe 13, first pipe body 131, dust cup interface 1311, second pipe body 132, adapter pipe 133, first connector 141, second connector 142, air duct switching assembly 15, support component 16, dust cup assembly 20, dust discharge port 21, cup body 22, cup cover 23, locking part 24, suction device 30, cleaning accessory 40, filter device 50, base station 200, bypass ventilation duct 210, dust bag 220, main interface 241, auxiliary interface 242, dust collection air duct 243. Detailed Implementation

[0035] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0036] Combination Figure 1 and Figure 8 According to the embodiment of the present utility model, the cleaning device 100 has a working mode and a self-cleaning mode. In the working mode, the cleaning device 100 can be used to clean the working surface. In the self-cleaning mode, the cleaning device 100 can cooperate with the base station 200 to remove dust and dirt from the cleaning device 100, thereby achieving self-cleaning of the cleaning device 100.

[0037] Combination Figure 1 and Figure 2 The cleaning equipment 100 includes a main body 10, which includes an air inlet duct 11 and a return air duct 12 for connecting to the base station 200.

[0038] The cleaning device 100 also includes a dust cup assembly 20, which is configured to be in fluid communication with the air inlet duct 11. The dust cup assembly 20 has a dust discharge port 21, which is configured to be closed in the working mode and connected to the base station 200 in the self-cleaning mode.

[0039] Typically, one end of the air inlet duct is connected to the dust cup, and the other end is used to connect to various cleaning accessories 40. Of course, a cleaning structure such as a flat suction port can also be directly formed at the end of the main body located in the air inlet duct 11 away from the dust cup assembly 20. Alternatively, the end of the air inlet duct 11 away from the dust cup assembly 20 can be used directly for vacuuming.

[0040] The cleaning equipment 100 also includes a suction device 30, which is configured to connect to the dust cup assembly 20 in the working mode and to connect to the return air duct 12 in the self-cleaning mode.

[0041] Specifically, in operating mode, the cleaning equipment 100 has a suction device 30 connected to a dust cup assembly 20. The cleaning accessory 40 can be a cleaning brush head. The cleaning brush head draws dust, hair, debris, and other contaminants from the work surface into the dust cup assembly 20 through the air inlet duct 11. The airflow is filtered within the closed dust cup assembly 20, and the clean airflow filtered within the dust cup assembly 20 is discharged from the suction device 30. Combined with... Figure 8 After the cleaning equipment 100 completes the cleaning work, it can be connected to the base station 200. In the self-cleaning mode, the suction device 30 of the cleaning equipment 100 is connected to the return air duct 12, the dust discharge port 21 of the dust cup assembly 20 is opened and connected to the base station 200, and the base station 200 is connected to the return air duct 12. Under the action of the suction device 30, a negative pressure is generated in the base station 200, so that the dust, debris, hair and other dirt in the dust cup assembly 20 are collected in the base station 200. The airflow in the base station 200 flows back to the suction device 30 through the return air duct 12 and is discharged from the suction device 30. By setting a return air duct 12 on the cleaning equipment 100, the base station 200 does not need to be equipped with a motor. By using the suction device 30 of the cleaning equipment 100 to introduce negative pressure into the base station 200, a negative pressure is generated inside the base station 200. The negative pressure inside the base station 200 can clean and collect dirt from the dust cup assembly 20 of the cleaning equipment 100, simplifying the structure of the base station 200 and reducing the noise of the base station 200 during operation.

[0042] The cleaning device 100 of this utility model includes, but is not limited to, the following embodiments.

[0043] Implementation Method 1

[0044] At least a portion of the return air duct 12 is configured to surround the inlet air duct 11. Specifically, the entire return air duct 12 may surround the inlet air duct 11; or, a portion of the return air duct 12 may surround the inlet air duct 11. By configuring at least a portion of the return air duct 12 to surround the inlet air duct 11, the air duct layout of the cleaning equipment 100 is optimized. The return air duct 12 can make full use of the space around the inlet air duct 11, making the structure of the cleaning equipment 100 more compact.

[0045] For example, the return air duct 12 may be partially surrounded on one side of the inlet air duct 11; or the return air duct 12 may include two sections, one of which is fully surrounded on the outside of the inlet air duct 11, and the other section is partially surrounded on one side of the inlet air duct 11. On the one hand, the space outside the inlet air duct 11 can be fully utilized; on the other hand, it can ensure that the return air duct 12 has a sufficiently large flow area, reducing the resistance of airflow during the return process.

[0046] For example, the air inlet duct 11 can be a duct with a circular cross-section, and the return air duct 12 is arranged in a roughly "U" shaped cross-section on the outside of the air inlet duct 11. This makes the structure of the main body 10 more compact and ensures that the return air duct 12 has a sufficiently large flow area, reducing the resistance of the airflow during the return process.

[0047] For example, the main body 10 may include an air inlet duct, one end of which is configured to connect to the cleaning accessory 40 and the other end to the dust cup assembly 20. The air inlet duct defines an air inlet duct 11. The main body 10 may also include a return air duct, which is arranged around the air inlet duct and defines a return air duct 12. Alternatively, the main body 10 may include a connecting pipe 13, which defines an air inlet duct 11 and a return air duct 12 located on one side of the air inlet duct 11 that at least partially surrounds the air inlet duct 11. This can make full use of the space within the connecting pipe 13 and avoid significant changes in the appearance of the main body 10 due to the provided return air duct 12, such as protrusion of corresponding parts or increase in the size of the main body 10, thus simplifying the structure of the main body 10.

[0048] According to the present invention, the cleaning device 100, by providing a return air duct 12 on the main body 10, facilitates the generation of suction negative pressure in the base station 200 by means of the suction device 30 of the cleaning device 100. The base station 200 does not need to be equipped with a motor, and the cleaning device 100 can be self-cleaned. At least a part of the return air duct 12 is arranged to surround the air inlet air duct 11, making full use of the space around the air inlet air duct 11, making the structure of the cleaning device 100 compact, and ensuring that the return air duct 12 has a sufficiently large flow area to reduce the resistance of airflow during the return process.

[0049] For example, the cleaning device 100 can be a vacuum cleaner, a robot vacuum cleaner, a mite remover, a floor scrubber, etc. This utility model mainly uses a vacuum cleaner as an example for explanation.

[0050] In the dust cup assembly 20, the dust discharge port 21 is closed in the working mode and connected to the base station 200 in the self-cleaning mode. For example, the base station 200 may be provided with an unlocking component. After the cleaning device 100 is connected to the base station 200, the unlocking component can trigger the dust discharge port 21 of the dust cup assembly 20 to open. That is, the dust discharge port 21 can be opened by a mechanical structure. Alternatively, in the self-cleaning mode, the cleaning device 100 generates negative pressure in the base station 200 under the action of the suction device 30, and the dust discharge port 21 is opened under the action of the negative pressure.

[0051] Additionally, the suction device 30 connects to the dust cup assembly 20 in operating mode and to the return air duct 12 in self-cleaning mode. For example, a first valve may be provided at the connection point between the dust cup assembly 20 and the suction device 30, and a second valve may be provided at the connection point between the return air duct 12 and the suction device 30. In operating mode, the first valve can be opened and the second valve closed to connect the suction device 30 to the dust cup assembly 20; in self-cleaning mode, the second valve can be opened and the first valve closed to connect the suction device 30 to the return air duct 12. Alternatively, the cleaning device 100 includes an air duct switching assembly 15, located upstream of the suction device 30, and internally configured with an airflow conversion chamber. The cleaning device 100 has a first connection port, a second connection port, and a third connection port. The air outlet of the dust cup assembly 20 is fluidly connected to the airflow conversion chamber through the first connection port, the return air duct 12 is fluidly connected to the airflow conversion chamber through the second connection port, and the airflow conversion chamber is fluidly connected to the suction device 30 through the third connection port. The air duct switching assembly 15 also includes a sealing switching element disposed in the airflow conversion chamber. In the working mode, the sealing switching element closes the second connection port and opens the first connection port, so that the air outlet of the dust cup assembly 20 is connected to the suction device 30. In the self-cleaning mode, the sealing switching element closes the first connection port and opens the second connection port, so that the return air duct 12 is connected to the suction device 30.

[0052] Combination Figures 2 to 4In some embodiments of this utility model, the air inlet duct 11 includes an air inlet section 111 and an air outlet section 112 that are interconnected. The air inlet section 111 is configured to connect to the cleaning accessory 40, and the air outlet section 112 is configured to connect to the dust cup assembly 20. The return air duct 12 includes a first section 121 that surrounds the side of the air outlet section 112 that is away from the dust cup assembly 20. Specifically, when the suction device 30 is working, the airflow first enters the air inlet section 111 from the cleaning accessory 40, then enters the air outlet section 112, and then enters the dust cup assembly 20. The air outlet section 112 is connected to the dust cup assembly 20. The first section 121 of the return air duct 12 surrounds the side of the air outlet section 112 away from the dust cup assembly 20, making full use of the space on the side of the air outlet section 112 away from the dust cup assembly 20, making the structure of the cleaning equipment 100 more compact. The return air duct 12 is designed to surround the air inlet air duct 11, which can ensure that the return air duct 12 has a sufficiently large flow area and reduce the resistance of airflow when passing through the return air duct 12.

[0053] The return air duct 12 can extend along the axis parallel to the air inlet air duct 11, and the first section 121 is arranged in a semi-enclosed manner along the circumference of the air inlet air duct 11 on the side of the air inlet air duct 11 away from the dust cup assembly 20.

[0054] Combination Figure 2 and Figure 4 Furthermore, the return air duct 12 also includes a second section 122, which connects to the first section 121. The second section 122 is arranged around the outside of the air inlet section 111, making full use of the space outside the air inlet section 111, making the structure of the cleaning equipment 100 more compact, and ensuring that the return air duct 12 has a sufficiently large flow area to reduce the resistance of airflow when passing through the return air duct 12. The return air duct 12 can extend along the axis parallel to the air inlet air duct 11, and the second section 122 is arranged in a fully enclosing manner around the outside of the air inlet section 111 along the circumference of the air inlet air duct 11.

[0055] Combination Figure 2In some embodiments of this utility model, the air inlet duct 11 includes an air inlet section 111 and an air outlet section 112 that are interconnected. The air inlet section 111 is configured to connect to the cleaning accessory 40, and the air outlet section 112 is configured to connect to the dust cup assembly 20. The return air duct 12 includes a first section 121 and a second section 122 that are interconnected. The first section 121 surrounds the side of the air outlet section 112 that is away from the dust cup assembly 20, and the second section 122 surrounds the outside of the air inlet section 111. The end of the air outlet section 112 may be provided with a dust cup interface 1311 that connects to the dust cup assembly 20, and the end of the second section 122 may be provided with an inlet 12a of the return air duct 12. The inlet 12a of the return air duct 12 may be located on the side of the air inlet duct 11 near the dust cup assembly 20. The dust cup interface 1311 of the air inlet duct 11 and the inlet 12a of the return air duct 12 may be arranged opposite to each other along the axial direction of the dust cup assembly 20. Therefore, by surrounding the air inlet section 111 with the second section 122 and surrounding the side of the air outlet section 112 away from the dust cup assembly 20, the space outside the air inlet duct 11 can be fully utilized. On the other hand, it is convenient to set the inlet 12a of the return air duct 12 between the air inlet duct 11 and the dust cup assembly 20, thereby optimizing the layout of the cleaning equipment 100, improving space utilization, and making the structure of the cleaning equipment 100 more compact.

[0056] Implementation Method 2

[0057] Combination Figure 5 In some embodiments of this utility model, the main body 10 includes: a connecting pipe 13, an air inlet duct 11 is provided in the connecting pipe 13, and the main body 10 also has a return air duct 12 for connecting the base station 200. At least a portion of the return air duct 12 is provided in the connecting pipe 13 and extends along the extension direction of the air inlet duct 11.

[0058] Specifically, the connecting pipe 13 extends along the axial direction of the dust cup assembly 20 and is located on the side of the dust cup assembly 20. The connecting pipe 13 defines the air inlet duct 11, and at least a portion of the return air duct 12 is located in the connecting pipe 13. This can make full use of the space inside the connecting pipe 13, avoid significant changes in the appearance of the main body 10 due to the provided return air duct 12, such as protrusion of corresponding parts or increase in the size of the main body 10, simplify the structure of the main body 10, and make the structure of the cleaning equipment 100 more compact.

[0059] For example, an air inlet duct 11 is formed inside the connecting pipe 13. One end of the air inlet duct 11 is in fluid communication with the dust collection chamber of the dust cup assembly 20, and the other end is in fluid communication with the outside through the cleaning attachment 40. The suction device 30 is used to provide suction force, which can guide dirty air from the outside into the dust collection chamber through the air inlet duct 11. The filter device 50 extends at least partially into the dust cup to separate and filter the dirty air entering the dust collection chamber. The airflow filtered by the filter device 50 flows to the suction device 30 through the air outlet of the cup body 22, and the filtered dust and impurities are collected in the dust collection chamber of the cup body 22. The air inlet duct 11 is provided in the connecting pipe 13, and at least a part of the return air duct 12 is provided in the connecting pipe 13. This avoids significant changes in the appearance of the main body 10 due to the provided return air duct 12, such as protrusion of corresponding parts or increase in the size of the main body 10, thus simplifying the structure of the main body 10 and making the structure of the cleaning device 100 more compact.

[0060] The return air duct 12 extends along the extension direction of the inlet air duct 11. For example, the return air duct 12 and the inlet air duct 11 can be arranged side-by-side, simplifying the structure of the main body 10. For instance, the connecting pipe 13 may include an inlet pipe and a return air duct, with the inlet pipe defining the inlet air duct 11 and the return air duct defining the return air duct 12, arranged side-by-side. Alternatively, the connecting pipe 13 may have a partition plate defining spaced and side-by-side inlet air ducts 11 and 12 within it. Of course, the connecting pipe 13 in this application can also have other configurations, which are not listed here. Those skilled in the art can easily obtain other configurations of the connecting pipe 13 based on the above description.

[0061] In some embodiments of this utility model, at least a portion of the return air duct 12 surrounds the inlet air duct 11, optimizing the air duct layout of the cleaning equipment 100, making full use of the space within the connecting pipe 13, and making the structure of the cleaning equipment 100 compact. Furthermore, the return air duct 12, by at least partially surrounding the inlet air duct 11, ensures that the return air duct 12 has a sufficiently large flow area, reducing the resistance of airflow passing through the return air duct 12. Combined with... Figure 4 In some embodiments of this utility model, the connecting pipe 13 includes a first pipe body 131 and a second pipe body 132. At least a portion of the first pipe body 131 is disposed inside the second pipe body 132. The first pipe body 131 defines an air inlet duct 11, and the second pipe body 132 defines a return air duct 12 between the first pipe body 131 and the second pipe body 132. This simplifies the structure of the connecting pipe 13 and makes full use of the space inside the connecting pipe 13. Within the limited space of the connecting pipe 13, the return air duct 12 is ensured to have a sufficiently large flow cross-sectional area, reducing the resistance of the airflow when passing through the return air duct 12.

[0062] In some embodiments of this utility model, the main body 10 further includes a first connector 141, which is arranged along the axis of the connecting pipe 13 and connected to the air inlet duct 11. Exemplarily, the cleaning device 100 may include multiple accessories such as cleaning accessories 40 and extension pipes. The cleaning accessories 40 are detachably connected to the first connector 141 so as to facilitate the replacement of different cleaning accessories 40 according to different usage requirements. The first connector 141 is connected to the air inlet duct 11, and the dust-laden airflow drawn in by the cleaning accessories 40 enters the dust cup assembly 20 through the air inlet duct 11.

[0063] The main body 10 also includes a second connector 142, which is located on the side of the connecting pipe 13 and between the connecting pipe 13 and the dust cup assembly 20. The second connector 142 is connected to the return air duct 12. For example, the base station 200 may be provided with a secondary interface 242, and the second connector 142 can be connected to the secondary interface 242 of the base station 200. That is, the second connector 142 can serve as a return interface for airflow return after the cleaning device 100 is connected to the base station 200. The second connector 142 is located between the connecting pipe 13 and the dust cup assembly 20, which can prevent the user from affecting the second connector 142 during the use of the cleaning device 100.

[0064] In addition, to ensure the airtightness of the second connector 142 and the auxiliary interface 242, a sealing element can be provided on the second connector 142. The second connector 142 is located between the dust cup assembly 20 and the connecting pipe 13, which can prevent the user from affecting the sealing element during the use of the cleaning equipment 100 and ensure the sealing performance after the cleaning equipment 100 is connected to the base station 200.

[0065] Furthermore, one end of the second tube 132 is configured to connect to the suction device 30, and the other end is connected to the second connector 142. The second connector 142 connects to the return air duct 12 and is used to dock with the base station 200. The second connector 142 is located on the side of the second tube 132 near the dust cup assembly 20. Figure 6 For example, the base station 200 may be provided with a secondary interface 242, and the second connector 142 is connected to the secondary interface 242 of the base station 200 to facilitate the return of airflow of the base station 200 through the return air duct 12. The second connector 142 is located between the dust cup assembly 20 and the connecting pipe 13 to prevent the second connector 142 from being exposed.

[0066] In addition, to ensure the airtightness of the second connector 142 and the auxiliary interface 242, a sealing element can be provided on the second connector 142. The second connector 142 is located between the dust cup assembly 20 and the second tube 132, which can prevent the user from affecting the sealing element during the use of the cleaning equipment 100 and ensure the sealing performance after the cleaning equipment 100 is connected to the base station 200.

[0067] Optionally, one end of the first tube 131 is connected to the cleaning accessory 40, and the other end is provided with a dust cup interface 1311. The dust cup interface 1311 and the second connector 142 are opposite each other along the axial direction of the dust cup assembly 20, thereby optimizing the layout of the cleaning equipment 100, making full use of the space between the connecting tube 13 and the dust cup assembly 20, and improving the space utilization rate of the cleaning equipment 100.

[0068] In some embodiments of this utility model, the connecting pipe 13 further includes a transition pipe 133. One end of the transition pipe 133 is connected to the second pipe body 132, and the other end is configured to connect to the suction device 30. Specifically, the return air duct 12 may include a first part and a second part that are connected. The first part is located between the first pipe body 131 and the second pipe body 132, and the second part is located inside the transition pipe 133. The transition pipe 133 is connected to the second pipe body 132 and the suction device 30 respectively, so as to connect the return air duct 12 to the suction device 30 in the self-cleaning state, making the structure of the cleaning equipment 100 more compact and facilitating the installation of the cleaning equipment 100.

[0069] It should be noted that the other end of the adapter pipe 133 is configured to connect to the suction device 30. The other end of the adapter pipe 133 can be directly connected to the suction device 30. For example, a valve can be provided between the other end of the adapter pipe 133 and the suction device 30. In the working mode, the valve is closed to disconnect the suction device 30 from the return air duct 12. In the self-cleaning mode, the valve is opened to connect the suction device 30 to the return air duct 12. Alternatively, an air duct switching component 15 can be provided between the other end of the adapter pipe 133 and the suction device 30. The air duct switching component 15 is configured to allow the suction device 30 to selectively connect the dust cup assembly 20 and the return air duct 12.

[0070] Optionally, the main body 10 also includes a cover, which is placed on the outside of the connecting pipe 13. The cover can protect the connecting pipe 13 and improve the structural strength and stability of the connecting pipe 13.

[0071] Furthermore, the aforementioned different implementation methods can be implemented individually, or multiple implementation methods can be combined to form a new technical solution without conflict. The cleaning device 100 in this utility model may also have other technical features.

[0072] Combination Figure 2In some embodiments of this utility model, the inlet 12a of the return air duct 12 is located on the side of the inlet air duct 11 near the dust cup assembly 20, which can make full use of the space between the inlet air duct 11 and the dust cup assembly 20, making the structure of the cleaning device 100 more compact. For example, the inlet 12a of the return air duct 12 may be provided with a second connector 142 that connects to the base station 200. The base station 200 may be provided with a secondary connector 242. After the second connector 142 connects to the secondary connector 242, it is convenient to realize the return of airflow of the base station 200 through the return air duct 12. By providing the inlet 12a of the return air duct 12 on the side of the inlet air duct 11 near the dust cup assembly 20, the exposure of the second connector can be avoided.

[0073] In some embodiments of this utility model, at least a portion of the return air duct 12 is arranged in a semi-enclosed manner on the outside of the air inlet air duct 11 with a generally "U" shaped cross-section. This can make full use of the space outside the air inlet air duct 11, while ensuring that the return air duct 12 has a sufficiently large flow area, reducing the resistance of the airflow during the return process, and making the structure of the main body 10 more compact.

[0074] Combination Figure 6 and Figure 8 The present invention also provides a base station 200, which has a bypass ventilation duct 210 for connecting to the return air duct 12 of the aforementioned cleaning equipment 100. The base station 200 also includes a dust bag 220. In the self-cleaning mode, the dust discharge port 21 is in fluid communication with the dust bag 220, and the bypass ventilation duct 210 is in fluid communication with the dust bag 220, so as to generate negative pressure inside the dust bag 220.

[0075] Specifically, in self-cleaning mode, the suction device 30 of the cleaning device 100 operates, the airflow channel from the dust cup assembly 20 to the suction device 30 is closed, the dust discharge port 21 of the dust cup assembly 20 is connected to the dust bag 220, and the bypass ventilation duct 210 is connected to the return air duct 12, which in turn is connected to the suction device 30. This creates negative pressure inside the dust bag 220, thereby cleaning the dirt inside the dust cup assembly 20. In other words, no additional motor is needed on the base station 200. By using the suction device 30 of the cleaning device 100 to introduce negative pressure into the base station 200, negative pressure is created inside the dust bag 220, which can clean and collect dirt from the dust cup assembly 20 of the cleaning device 100, simplifying the structure of the base station 200 and reducing the noise during operation. In the self-cleaning mode, the airflow path of the cleaning equipment 100 is as follows: air inlet duct 11 - dust cup assembly 20 - dust bag 220 - bypass ventilation duct 210 - return air duct 12 - suction device 30.

[0076] Combination Figure 7 and Figure 8This utility model also provides a cleaning system 1000, including the aforementioned cleaning device 100 and base station 200, wherein the cleaning device 100 and the base station 200 are detachably connected. When the cleaning device 100 is detached from the base station 200, it can clean the working surface; when connected to the base station 200, the cleaning device 100 can perform self-cleaning.

[0077] Combination Figure 5 and Figure 8 For example, the dust cup assembly 20 includes a cup body 22, a cup lid 23, and a locking part 24. The cup lid 23 is connected to the cup body 22 for opening and closing the dust discharge port 21. The locking part 24 has a locked state that restricts the cup lid 23 from opening the dust discharge port 21, and an unlocked state that releases the cup lid 23. In the working mode of the cleaning device 100, the locking part 24 can be in the locked state to restrict the cup lid 23 from opening the dust discharge port 21. In the self-cleaning mode of the cleaning device 100, the locking part 24 can be in the unlocked state, releasing the lock on the cup lid 23, so that the cup lid 23 can open the dust discharge port 21 to clean the dust cup assembly 20.

[0078] In addition, the base station 200 is equipped with an unlocking device, which is configured to drive the locking part 24 to switch from the locked state to the unlocked state when the cleaning device 100 docks with the base station 200.

[0079] For example, the base station 200 includes a main interface 241, wherein the main interface 241 is connected to the dust bag 220 and is used to dock with the dust discharge port 21 of the dust cup assembly 20 so that the garbage in the cup body 22 can enter the dust bag 220. The unlocking element may be a top protrusion provided on the inner wall of the main interface 241.

[0080] In some specific embodiments of this utility model, the cleaning device 100 may include a cleaning device body 10, a dust cup assembly 20, a connecting pipe 13, and a filter device 50. The cleaning device body 10 is equipped with a suction device 30. The dust cup assembly 20 is installed on the cleaning device body 10 and includes a cup body 22 and a cup lid 23. The cup body 22 has a dust discharge port 21 and an air outlet. The cup lid 23 can open and close the dust discharge port 21. A dust storage chamber is formed inside the cup body 22. The connecting pipe 13 is fixedly connected to the cleaning device body 10, and an air inlet duct 11 is formed inside the connecting pipe 13. One end of the air inlet duct 11 connects to the dust storage chamber of the dust cup assembly 20. The dust chamber is fluidly connected at one end and fluidly connected to the outside at the other end. For example, the other end of the air inlet duct 11 can be fluidly connected to the outside through the cleaning accessory 40. The suction device 30 is used to provide suction force and can guide dirty air from the outside into the dust storage chamber through the air inlet duct 11. The filter device 50 extends at least partially into the dust cup and is used to separate and filter the dirty air entering the dust storage chamber. The cleaning device 100 may include an air duct switching assembly 15, which is located upstream of the suction device 30. At least part of the return air duct 12 is disposed in the connecting pipe 13 and extends along the extension direction of the air inlet duct 11.

[0081] The base station 200 may include a dust bag 220 and has a dust collection duct 243 and a bypass duct 210. The dust bag 220 is located on the flow path of the dust collection duct 243, and the dust collection duct 243 can be in fluid communication with the bypass duct 210. When the cleaning equipment 100 is connected to the base station 200, the dust collection duct 243 can be in fluid communication with the dust storage chamber, and the bypass duct 210 can be in fluid communication with the return air duct 12 on the cleaning equipment 100.

[0082] In some embodiments of this utility model, the cleaning system 1000 includes the aforementioned cleaning device 100 and the aforementioned base station 200. The cleaning device 100 has a working mode and a self-cleaning mode. When the cleaning device 100 is connected to the base station 200, the cleaning device 100 is in the working mode. The dirty air entering the dust storage chamber is filtered by the filter device 50 and then flows through the air duct switching component 15 to the suction device 30. When the cleaning device 100 is connected to the base station 200, the cleaning device 100 can enter the self-cleaning mode after the air duct switching component 15 switches the air duct. The dust collection air duct 243 can be fluidly connected to the dust storage chamber, and the bypass air duct 210 can be fluidly connected to the return air duct 12 on the cleaning device 100. At this time, the airflow direction between the cleaning device 100 and the base station 200 is: air inlet air duct 11—dust cup dust storage chamber—dust collection air duct 243—dust bag 220—bypass air duct 210—return air duct 12—air duct switching component 15—suction device 30.

[0083] In some embodiments of this utility model, at least a portion of the return air duct 12 is located within the connecting pipe 13 and extends along the extending direction of the inlet air duct 11. One end of the return air duct 12 is connected to the air duct switching component 15, and the other end extends to the outer wall of the cleaning equipment body 10, forming a return interface on the outer wall. The base station 200 includes a main interface 241 and a secondary interface 242, wherein the main interface 241 is connected to the dust bag 220 and is used to dock with the dust discharge port 21 of the dust cup assembly 20, allowing the garbage in the cup 22 to enter the dust bag 220; the secondary interface 242 is connected to the bypass air duct 210 and is used to dock with the return interface of the cleaning equipment 100. When the cleaning equipment 100 is docked with the base station 200, the docking of the return interface and the secondary interface 242 enables the return air duct 12 to connect with the bypass air duct 210 of the base station 200. Understandably, in self-cleaning mode, the air duct switching component 15 is in a state of closing the first connection port and opening the second connection port. The airflow passing through the dust bag 220 in the base station 200 can enter the bypass ventilation duct 210, return to the cleaning device 100 through the return air duct 12, and flow to the suction device 30, thereby achieving the effect of cleaning the cup 22 and the filter device 50 by using the suction device 30 of the cleaning device 100 itself.

[0084] Additionally, the main body 10 of the cleaning equipment includes a connecting pipe 13, and an air inlet duct 11 is disposed within the connecting pipe 13. The axial direction of the dust cup assembly 20 is parallel to the axial direction of the connecting pipe 13. The connecting pipe 13 is located to the side of the dust cup assembly 20 and forms a support member 16 between it and the dust cup assembly, which is used to support the dust cup assembly 20. The return flow interface can be opened on the support member 16. This location is relatively difficult to observe and touch, and will not affect the return flow interface 14.

[0085] In some embodiments of this utility model, the cleaning device 100 includes a cleaning device body 10, a dust cup assembly 20 fixedly connected to the cleaning device body 10, and an air duct switching assembly 15. The air duct switching assembly 15 can be disposed on the flow path from the dust cup assembly 20 to the suction device 30, that is, on the flow path of clean air. The cleaning device body 10 includes a connecting pipe 13, and an air inlet duct 11 is formed inside the connecting pipe 13. The return air duct 12 is formed entirely inside the cleaning device body 10, with one end connected to the air duct switching assembly 15 and the other end extending to the outer wall of the cleaning device body 10, and a return interface is formed on the outer wall. The return air duct 12 includes a return main air duct located inside the connecting pipe 13. The return main air duct extends along the axis parallel to the air inlet duct 11, and at least a portion of it is disposed in a semi-enclosed manner on one side of the air inlet duct 11 along its circumference.

[0086] Specifically, on the cross-section perpendicular to the axis of the air inlet duct 11, the return main air duct is semi-enclosed on the outside of the air inlet duct 11, making full use of the space of the connecting pipe 13, and ensuring that the return main air duct has a sufficiently large cross-section within the limited space of the connecting pipe 13, so as to ensure the flow area of ​​the return air duct 12 and reduce the resistance of the airflow when passing through the return air duct 12.

[0087] Furthermore, the air intake duct 11 is a duct with a circular cross-section, and the return main air duct is arranged in a roughly "U" shaped cross-section on the outside of the air intake duct 11.

[0088] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0091] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A cleaning device (100), characterized in that, The cleaning device (100) has a working mode and a self-cleaning mode, and the cleaning device (100) includes: The main body (10) has an air inlet duct (11) and a return air duct (12) for connecting to a base station (200); A dust cup assembly (20) is fluidly connected to an air inlet duct (11). The dust cup assembly (20) has a dust discharge port (21) configured to be closed in the working mode and connected to the base station (200) in the self-cleaning mode. A suction device (30) is configured to connect to the dust cup assembly (20) in the operating mode and to connect to the return air duct (12) in the self-cleaning mode. At least a portion of the return air duct (12) is arranged to surround the air inlet air duct (11).

2. The cleaning equipment (100) according to claim 1, characterized in that, The air inlet duct (11) includes an air inlet section (111) and an air outlet section (112) that are connected to each other. The air inlet section (111) is configured to connect to the cleaning accessory (40), and the air outlet section (112) is configured to connect to the dust cup assembly (20). The return air duct (12) includes a first section (121) that surrounds the side of the air outlet section (112) away from the dust cup assembly (20).

3. The cleaning equipment (100) according to claim 2, characterized in that, The return air duct (12) further includes a second section (122), which connects to the first section (121) and is located outside the air inlet section (111).

4. The cleaning equipment (100) according to claim 1, characterized in that, The inlet (12a) of the return air duct (12) is located on the side of the air inlet air duct (11) near the dust cup assembly (20).

5. The cleaning equipment (100) according to claim 1, characterized in that, At least a portion of the return air duct (12) is arranged in a generally "U" shaped cross-sectional shape to partially surround the outside of the air inlet air duct (11).

6. A cleaning device (100), characterized in that, The cleaning device (100) has a working mode and a self-cleaning mode, and the cleaning device (100) includes: The main body (10) includes a connecting pipe (13), an air inlet duct (11) is provided inside the connecting pipe (13), and the main body (10) also has a return air duct (12) for connecting to a base station (200), at least a portion of the return air duct (12) is provided in the connecting pipe (13) and extends along the extension direction of the air inlet duct (11); A dust cup assembly (20) is configured to be in fluid communication with the air inlet duct (11), and the dust cup assembly (20) has a dust discharge port (21), which is configured to be closed in the working mode and connected to the base station (200) in the self-cleaning mode. A suction device (30) is configured to connect to the dust cup assembly (20) in the operating mode and to connect to the return air duct (12) in the self-cleaning mode.

7. The cleaning equipment (100) according to claim 6, characterized in that, At least a portion of the return air duct (12) is arranged to surround the air inlet air duct (11).

8. The cleaning equipment (100) according to claim 7, characterized in that, At least a portion of the return air duct (12) is arranged in a generally "U" shaped cross-sectional shape to partially surround the outside of the air inlet air duct (11).

9. The cleaning equipment (100) according to claim 7, characterized in that, The connecting pipe (13) includes a first pipe body (131) and a second pipe body (132). At least a portion of the first pipe body (131) is disposed inside the second pipe body (132). The first pipe body (131) defines the air inlet duct (11), and the second pipe body (132) and the first pipe body (131) define the return air duct (12).

10. The cleaning equipment (100) according to claim 8, characterized in that, The main body (10) also includes a first connector (141), which is arranged along the axis of the connecting pipe (13) and connected to the air inlet duct (11); The main body (10) also includes a second connector (142), which is located on the side of the connecting pipe (13) and between the connecting pipe (13) and the dust cup assembly (20). The second connector (142) is connected to the return air duct (12).

11. The cleaning equipment (100) according to claim 6, characterized in that, The air inlet duct (11) and the return air duct (12) are arranged side by side.

12. A base station (200), characterized in that, The base station (200) has a bypass ventilation duct (210) for connecting to the return air duct (12) of the cleaning device (100) according to any one of claims 1-11. The base station (200) also includes a dust bag (220). In the self-cleaning mode, the dust discharge port (21) is in fluid communication with the dust bag (220), and the bypass ventilation duct (210) is in fluid communication with the dust bag (220) to generate negative pressure inside the dust bag (220).

13. A cleaning system (1000), characterized in that, include: The cleaning device (100) according to any one of claims 1-11; The base station (200) of claim 12 is detachably docked with the cleaning device (100).

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