Cleaning apparatus and cleaning system

Abstract

The utility model relates to cleaning tool technical field, specifically disclose a kind of cleaning equipment and cleaning system, the cleaning equipment, including: host computer and sealing element, the host computer has backflow air duct, the backflow air duct has for the backflow docking interface of intercommunication base station;The sealing element is located on the backflow docking interface and / or the base station, the inner wall surface of the sealing element does not protrude the inner wall surface of the backflow air duct, the sealing element is configured to when the backflow docking interface is docked with the base station, the gap between the backflow docking interface and the base station is sealed.According to the cleaning equipment of the utility model embodiment, the airflow of backflow air duct can be avoided by the sealing element to cause hindering, improve the airflow smoothness of backflow air duct.

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 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.

[0005] In related technologies, a suction device is used to create negative pressure in the base station to clean the cleaning equipment. The return channel of the cleaning equipment and the sealing structure of the base station affect the self-cleaning efficiency of the cleaning equipment. Utility Model Content

[0006] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of this invention is to provide a cleaning device that avoids obstruction of airflow in the return air duct by the seal, thereby improving the smoothness of airflow in the return air duct.

[0007] Another objective of this invention is to provide a cleaning system, including the aforementioned cleaning equipment.

[0008] A cleaning device according to an embodiment of the present invention includes: a main unit and a sealing element. The main unit has a return air duct, and the return air duct has a return interface for connecting to a base station. The sealing element is disposed on the return interface and / or the base station, and the inner wall surface of the sealing element does not protrude from the inner wall surface of the return air duct. The sealing element is configured to seal the gap between the return interface and the base station when the return interface is connected to the base station.

[0009] According to the cleaning equipment of this utility model embodiment, when the sealing element is connected to the base station, it can seal the gap between the return flow interface and the base station, improve the airtightness between the return flow duct of the cleaning equipment and the base station, and the inner wall surface of the sealing element does not protrude from the inner wall surface of the return flow duct, which can avoid the sealing element from obstructing the airflow and ensure the self-cleaning effect of the cleaning equipment.

[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 seal includes a sealing portion at least partially located outside the return port and opposite the peripheral wall of the return port along the axis of the return port.

[0012] In some embodiments, the sealing portion is spaced apart from the end of the return port along the axis of the return port; and / or, the sealing portion is configured as an annular ring surrounding the return port and extending along the axial direction, the inner periphery of the sealing portion is connected to the peripheral wall of the return port, and at least a portion of the sealing portion is inclined from the inside of the sealing portion to the outside of the sealing portion in a direction away from the return port.

[0013] In some embodiments, the seal includes a positioning portion connected to the inner side of the peripheral wall of the return port, the inner wall surface of the positioning portion being flush with the inner wall surface of the return air duct.

[0014] In some embodiments, the inner wall surface of the return air duct is provided with a groove on the side near the return interface, forming a first stepped surface. The positioning part is connected to the groove and abuts against the first stepped surface along the axial direction of the return interface.

[0015] In some embodiments, the inner wall surface of the groove includes a first wall surface, a second wall surface, and a second stepped surface. The first wall surface is connected to the first stepped surface, the second wall surface is recessed relative to the first wall surface, and the second stepped surface is connected between the first wall surface and the second wall surface. The positioning part is provided with a positioning flange, which is connected to the inner side of the second wall surface and abuts against the second stepped surface along the axial direction of the return interface.

[0016] In some embodiments, the peripheral wall of the return interface has a positioning hole, and the seal further includes a positioning block that is embedded in the positioning hole.

[0017] In some embodiments, the host includes a dust cup assembly, the return port is located on the side of the dust cup assembly, and the end face of the return port is inclined in the direction of return air along the return air direction of the return port in the direction close to the dust cup assembly.

[0018] 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.

[0019] In some embodiments, the base station is provided with a bypass ventilation duct, the bypass ventilation duct having a secondary interface that connects to the return ventilation duct, the secondary interface being connected to the return interface, and the inner wall surface of the seal not protruding from the inner wall surface of the bypass ventilation duct.

[0020] In some embodiments, the seal includes a sealing portion disposed on the outside of the return port and abutting between the return port and the auxiliary port along the axial direction of the return port.

[0021] 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

[0022] Figure 1 This is a schematic diagram of the cleaning equipment according to an embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional schematic diagram of the cleaning equipment according to an embodiment of the present utility model.

[0024] Figure 3 yes Figure 2 Enlarged view of point B in the middle circle.

[0025] Figure 4 This is a partial exploded view of the cleaning equipment according to an embodiment of the present invention.

[0026] Figure 5 This is a cross-sectional schematic diagram of the cleaning system according to an embodiment of the present invention.

[0027] Figure label:

[0028] Cleaning system 1000, cleaning equipment 100, main unit 10, return air duct 11, return interface 111, groove 12, first step surface 121, first wall surface 122, second wall surface 123, second step surface 124, positioning hole 125, dust cup assembly 13, connecting pipe 14, seal 20, sealing part 21, positioning part 22, positioning flange 221, positioning block 23, base station 200, bypass ventilation duct 210, axis A. Detailed Implementation

[0029] 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.

[0030] In related technologies, base stations are used to clean the dirt in the dust cup of cleaning equipment, reducing the user's operational burden. Base stations usually require additional structures such as motors to create negative pressure inside the base station, making the overall structure of the base station complex and increasing the cost of the entire cleaning system.

[0031] Combination Figures 1 to 3 This utility model proposes a cleaning device 100, which includes a main unit 10 and a return air duct 11. After the cleaning device 100 is connected to the base station 200, the base station 200 does not need to be equipped with a motor. The negative pressure can be introduced into the base station 200 by means of the suction device of the cleaning device 100, so that 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 13 of the cleaning device 100, realizing the self-cleaning of the cleaning device 100. The airflow inside the base station 200 returns to the suction device through the return air duct 11 of the cleaning device 100 and is discharged from the suction device to the outside of the cleaning device 100, simplifying the structure of the base station 200 and reducing the noise of the base station 200 during operation.

[0032] For example, the cleaning device 100 may have a working mode and a self-cleaning mode. In the working mode, the suction device of the cleaning device 100 is connected to the dust cup assembly 13. Dust, hair, debris and other dirt on the working surface are sucked into the dust cup assembly 13 through the air inlet duct. The dust cup assembly 13 is in a closed state and filters the airflow. The clean airflow filtered by the dust cup assembly 13 is discharged from the suction device to the outside of the cleaning device 100. 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 of the cleaning equipment 100 is connected to the return air duct 11, the dust discharge port of the dust cup assembly 13 is opened and connected to the base station 200, and the base station 200 is connected to the return air duct 11. Under the action of the suction device, a negative pressure is generated in the base station 200, so that the dust, debris, hair and other dirt in the dust cup assembly 13 are collected in the base station 200. The airflow in the base station 200 flows back to the suction device through the return air duct 11 and is discharged to the outside of the cleaning equipment 100 through the suction device.

[0033] Combination Figure 3The return air duct 11 has a return interface 111 for connecting to the base station 200, so as to facilitate the docking of the cleaning equipment 100 and the base station 200. The cleaning equipment 100 also includes a seal 20, which is disposed on the return interface 111 and / or the base station 200. The seal 20 is configured to seal the gap between the return interface 111 and the base station 200 when the return interface 111 is docked with the base station 200. The seal 20 can improve the air tightness between the base station 200 and the return air duct 11. It can be understood that if there is an air tightness problem between the base station 200 and the return air duct 11, it will cause leakage when the airflow returns from the base station 200 through the return air duct 11, so that a sufficiently large negative pressure cannot be formed in the base station 200, affecting the cleaning effect of the cleaning equipment 100. The inner wall of the seal 20 does not protrude from the inner wall of the return air duct 11, thus avoiding the seal 20 occupying the space of the return air duct 11 and causing resistance to the airflow, thereby improving the smoothness of the airflow when passing through the return air duct 11 and improving the self-cleaning effect of the cleaning equipment 100 in the self-cleaning mode.

[0034] According to the cleaning device 100 of this utility model embodiment, when the return port 111 is connected to the base station 200, the sealing member 20 can seal the gap between the return port 111 and the base station 200, improve the airtightness of the return air duct 11 of the cleaning device 100 and the base station 200, and the inner wall surface of the sealing member 20 does not protrude from the inner wall surface of the return air duct 11, which can avoid the sealing member 20 from obstructing the airflow and ensure the self-cleaning effect of the cleaning device 100.

[0035] Wherein, the inner wall surface of the seal 20 does not protrude from the inner wall surface of the return air duct 11. For example, the inner wall surface of the seal 20 is flush with the inner wall surface of the return air duct 11; or, the inner wall surface of the seal 20 is at least partially recessed relative to the inner wall surface of the return air duct 11, thereby reducing the resistance of the seal 20 to the airflow passing through the return air duct 11, and thus ensuring the self-cleaning effect of the cleaning equipment 100.

[0036] Preferably, the inner wall surface of the seal 20 is flush with the inner wall surface of the return air duct 11, so that the inner wall surface of the seal 20 and the inner wall surface of the return air duct 11 form a smooth surface, which improves the smoothness of the airflow return process, reduces the resistance of the airflow return process, and thus ensures the self-cleaning effect of the cleaning equipment 100.

[0037] Alternatively, the seal 20 may be connected to the end face of the return port 111 that is mated with the base station 200; or, the seal 20 may include a positioning part 22, which is connected to the inner side of the peripheral wall of the return port 111; or, a positioning groove is provided between the inner peripheral wall and the outer peripheral wall of the return port 111, and the end of the seal 20 extends into the positioning groove.

[0038] In one implementation, the seal 20 may be disposed on the base station 200 at the position where the base station 200 is used to dock with the return flow interface 111.

[0039] Combination Figure 3 In some embodiments of this utility model, the sealing member 20 includes a sealing portion 21, at least a portion of which is located outside the return port 111 and is opposite to the peripheral wall of the return port 111 along the axis of the return port 111, such as... Figure 3 As shown, the axis of the return interface 11 is A, and the sealing part 21 enables the seal 20 to effectively seal the gap between the return interface 111 and the base station 200. Specifically, a portion of the sealing part 21 may be located on the outside of the return interface 111, and another portion may extend to the inside of the return interface 111; or, the entire sealing part 21 may be located on the outside of the return interface 111.

[0040] For example, the base station 200 may be provided with a secondary interface, which is connected to the return interface 111, so that the airflow of the base station 200 can return to the suction device through the return air duct 11. At least a portion of the sealing part 21 is located outside the return interface 111. After the cleaning device 100 is connected to the base station 200, the sealing part 21 can abut against the secondary interface and the return interface 111 along the axial direction of the return interface 111, thereby improving the airtightness between the base station 200 and the return air duct 11.

[0041] Combination Figure 3 In some embodiments of this utility model, the sealing part 21 is spaced apart from the end of the return interface 111 along the axis of the return interface 111. In other words, there is a gap between the sealing part 21 and the end of the return interface 111. When the return interface 111 is connected to the base station 200, the gap provides deformation space for the sealing part 21 that is squeezed after connection, thereby improving the sealing effect and ensuring that sufficient negative pressure is generated in the base station 200, thus improving the self-cleaning effect of the cleaning device 100.

[0042] Combination Figure 3 and Figure 4 In some embodiments of this utility model, the sealing part 21 is configured as an annular shape surrounding the return port 111 and extending along the axial direction. The inner periphery of the sealing part 21 is connected to the peripheral wall of the return port 111. At least a portion of the sealing part 21 is inclined from the inner side to the outer side of the sealing part 21 away from the return port 111. After the return port 111 is connected to the base station 200, on the one hand, it can avoid the sealing member 20 from being squeezed and deformed towards the inner side of the return port 111, which would cause airflow resistance. On the other hand, it can increase the contact area between the sealing part 21 and the base station 200, thereby improving the sealing effect.

[0043] Combination Figure 3 and Figure 4 In some embodiments of this utility model, the sealing part 21 is configured as an annular shape surrounding the return port 111 and extending along the axial direction. The sealing part 21 is spaced apart from the end of the return port 111 along the axis of the return port 111, and the inner periphery of the sealing part 21 is connected to the peripheral wall of the return port 111. At least a portion of the sealing part 21 is inclined away from the return port 111 from the inner side to the outer side of the sealing part 21. When the return port 111 is docked with the base station 200, the sealing part 21 is compressed and deformed. The gap between the sealing part 21 and the return port 111 can provide space for the deformation of the sealing part 21. In addition, the inclined arrangement of the sealing part 21 can prevent the sealing element 20 from being compressed and deformed towards the inner side of the return port 111, which would create resistance to the airflow, and increase the contact area between the sealing part 21 and the base station 200, thereby improving the sealing effect and ensuring the self-cleaning effect of the cleaning device 100.

[0044] Combination Figure 3 In some embodiments of this utility model, the sealing member 20 includes a positioning part 22, which is connected to the inner side of the peripheral wall of the return air interface 111. This facilitates the connection between the sealing member 20 and the return air interface 111 and improves the connection stability of the sealing member 20. The inner wall surface of the positioning part 22 is flush with the inner wall surface of the return air duct 11, forming a smooth surface that improves the smoothness of the airflow return process, reduces the resistance during airflow return, and thus ensures the self-cleaning effect of the cleaning equipment 100.

[0045] In addition, the positioning part 22 and the return flow interface 111 can be an interference fit, which improves the connection stability between the seal 20 and the return flow interface 111 and can prevent air leakage.

[0046] Combination Figure 3 and Figure 4 In some embodiments of this utility model, a groove 12 is provided on the inner wall surface of the return air duct 11 near the return interface 111, forming a first stepped surface 121. The positioning part 22 is connected to the groove 12 and abuts against the first stepped surface 121 along the axial direction of the return interface 111. Specifically, the groove 12 is recessed relative to the inner wall surface of the return air duct 11, that is, the inner wall surface of the groove 12 expands radially outward relative to the inner wall surface of the return air duct 11 to form an installation space for the positioning part 22. The positioning part 22 abuts against the first stepped surface 121, which can position the positioning part 22. After the return interface 111 is connected to the base station 200, the first stepped surface 121 can prevent the positioning part 22 from shifting along the axial direction, thereby improving the structural stability of the seal 20.

[0047] Combination Figure 4Furthermore, the inner wall surface of the groove 12 includes a first wall surface 122, a second wall surface 123, and a second step surface 124. The first wall surface 122 is connected to the first step surface 121, the second wall surface 123 is recessed relative to the first wall surface 122, and the second step surface 124 is connected between the first wall surface 122 and the second wall surface 123. The positioning part 22 is provided with a positioning flange 221, which is connected to the inner side of the second wall surface 123 and abuts against the second step surface 124 along the axial direction of the return interface 111. Specifically, the second wall surface 123 is recessed relative to the first wall surface 122, that is, the second wall surface 123 is radially outward relative to the first wall surface 122 to form the installation space of the positioning flange 221, and the positioning flange 221 abuts against the second step surface 124, which can position the positioning flange 221. After the return interface 111 is connected to the base station 200, the second step surface 124 can prevent the positioning flange 221 from being displaced along the axial direction, further improving the structural stability of the seal 20.

[0048] In addition, by providing a first stepped surface 121 and a second stepped surface 124 in the groove 12, the contact area between the seal 20 and the return flow interface 111 can be increased, thereby improving the connection strength between the seal 20 and the return flow interface 111. It is understood that the cleaning equipment 100 and the base station 200 need to be docked multiple times. The seal 20 and the return flow interface 111 have a high connection strength, which can ensure that the cleaning equipment 100 and the base station 200 still have good structural stability after multiple dockings, and ensure the airtightness of the return flow duct 11 and the base station 200.

[0049] The first wall surface 122 may be provided with a positioning hole 125, and the positioning part 22 may also include a positioning block 23. The positioning block 23 is embedded in the positioning hole 125, which can further fix the sealing element 20 and prevent the sealing element 20 from shifting relative to the return interface 111 during repeated compression, thus affecting the sealing effect. Through the cooperation of the positioning block 23 and the positioning flange 221, the connection strength between the sealing element 20 and the return interface 111 can be effectively improved, avoiding problems such as displacement of the sealing element 20 or gaps between it and the return interface 111 after multiple dockings between the cleaning device 100 and the base station 200.

[0050] In some embodiments of this utility model, the peripheral wall of the return interface 111 has a positioning hole 125, and the seal 20 also includes a positioning block 23. The positioning block 23 is embedded in the positioning hole 125. The positioning block 23 cooperates with the positioning hole 125, which can improve the connection strength between the seal 20 and the return interface 111 and prevent the seal 20 from being displaced relative to the return interface 111 when the return interface 111 is connected to the base station 200.

[0051] The positioning block 23 and the positioning hole 125 can be an interference fit, which improves the connection stability between the positioning block 23 and the positioning hole 125 and can prevent air leakage.

[0052] In addition, the positioning holes 125 may include a plurality of holes arranged at circumferential intervals along the return port 111, and the positioning blocks 23 may include a plurality of holes that mate with the positioning holes 125, thereby further improving the connection stability between the seal 20 and the return port 111.

[0053] Combination Figure 2 and Figure 3 In some embodiments of this utility model, the host 10 includes a dust cup assembly 13, and a return port 111 is disposed on the side of the dust cup assembly 13. The end face of the return port 111 is inclined in the direction of air return of the return port 111 in the direction close to the dust cup assembly 13. For example, the return port 111 is connected to the base station 200 in the vertical direction. The end face of the return port 111 is inclined in the direction from bottom to top in the direction close to the dust cup assembly 13. This can increase the contact area between the sealing member 20 and the base station 200, improve the sealing effect, and reduce the stress of the sealing member 20 under compression deformation, which facilitates the stable connection between the sealing member 20 and the return port 111.

[0054] Optionally, the main unit 10 further includes a connecting pipe 14, which extends along the axial direction of the dust cup assembly 13 and is disposed on the side of the dust cup assembly 13. An air inlet duct is defined within the connecting pipe 14, and at least a portion of the return air duct 11 is disposed within the connecting pipe 14. Exemplarily, the connecting pipe 14 is disposed within the main unit 10 and connected to the dust cup assembly 13. An air inlet duct is formed inside the connecting pipe 14, one end of which is in fluid communication with the dust storage chamber of the dust cup assembly 13, and the other end is in fluid communication with the outside. A suction device is used to provide suction force, which can guide dirty air from the outside into the dust storage chamber through the air inlet duct. A filter device extends at least partially into the dust cup to separate and filter the dirty air entering the dust storage chamber. The airflow filtered by the filter device flows through the air outlet of the cup body to the suction device, and the filtered dust and impurities are collected in the dust storage chamber of the cup body. By disposing of at least a portion of the return air duct 11 within the connecting pipe 14, the space within the connecting pipe 14 can be fully utilized, making the structure of the cleaning device 100 more compact.

[0055] The return flow interface 111 can be located between the connecting pipe 14 and the dust cup assembly 13, which can prevent the user from affecting the seal 20 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.

[0056] Optionally, the connecting pipe 14 is located to the side of the dust cup assembly 13 and forms a support between it and the dust assembly, for supporting the dust cup assembly 13. The return port 111 can be opened on the support, which is a relatively difficult position for the cleaning equipment 100 to observe and touch, and will not affect the return port 111.

[0057] Combination Figure 5 The present invention also provides a cleaning system 1000, including: the aforementioned cleaning device 100 and base station 200, wherein the base station 200 is detachably connected to the cleaning device 100.

[0058] In one embodiment, the seal 20 may be provided at the secondary interface of the bypass vent 210.

[0059] Furthermore, the base station 200 is provided with a bypass ventilation duct 210, which has a secondary interface that connects to the return air duct 11. The secondary interface is connected to the return interface 111, and the inner wall surface of the seal 20 does not protrude from the inner wall surface of the bypass ventilation duct 210.

[0060] Furthermore, seals 20 can be installed at both the secondary interface of the bypass duct 210 and the return interface 111 of the return duct 11.

[0061] For example, the base station 200 may be equipped with a dust bag. In self-cleaning mode, the dust cup's exhaust port opens, allowing the dust cup to connect with the dust bag. The bypass ventilation duct 210 can then be fluidly connected to the return air duct 11. At this time, the airflow direction between the cleaning device 100 and the base station 200 is: air inlet duct—dust cup—dust bag—bypass ventilation duct 210—return air duct 11—suction device. In other words, the airflow of the base station 200 returns to the return air duct 11 of the cleaning device 100 via the bypass ventilation duct 210. The inner wall surface of the seal 20 does not protrude from the inner wall surface of the bypass ventilation duct 210, thus preventing the seal 20 from obstructing the return airflow and reducing the impact of the seal 20 on the return airflow.

[0062] For example, the inner wall surface of the seal 20 is flush with the inner wall surface of the bypass duct 210; or, the inner wall surface of the seal 20 is at least partially recessed relative to the inner wall surface of the bypass duct 210, thereby reducing the resistance of the seal 20 to the airflow through the return duct 11, and thus ensuring the self-cleaning effect of the cleaning device 100.

[0063] Preferably, the inner wall surface of the seal 20 is flush with the inner wall surface of the bypass ventilation duct 210, so that the inner wall surface of the seal 20 and the inner wall surface of the bypass ventilation duct 210 form a smooth surface, which improves the smoothness of the airflow return process, reduces the resistance of the airflow return process, and thus ensures the self-cleaning effect of the cleaning equipment 100.

[0064] In some embodiments of this utility model, the sealing member 20 includes a sealing part 21, which is disposed on the outside of the return port 111 and abuts against the return port 111 and the auxiliary port along the axial direction of the return port 111.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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, include: The host (10) has a return air duct (11) having a return interface (111) for connecting to a base station (200); A sealing element (20) is disposed on the return port (111) and / or the base station (200). The inner wall surface of the sealing element (20) does not protrude from the inner wall surface of the return air duct (11). The sealing element (20) is configured to seal the gap between the return port (111) and the base station (200) when the return port (111) is connected to the base station (200).

2. The cleaning equipment (100) according to claim 1, characterized in that, The seal (20) includes a sealing portion (21) which is at least partially located outside the return port (111) and is opposite to the peripheral wall of the return port (111) along the axis of the return port (111).

3. The cleaning equipment (100) according to claim 2, characterized in that, The sealing portion (21) is spaced apart from the end of the return port (111) along the axis; and / or, the sealing portion (21) is configured as an annular shape surrounding the return port (111) and extending along the axis, the inner periphery of the sealing portion (21) is connected to the peripheral wall of the return port (111), and at least a portion of the sealing portion (21) is inclined from the inside of the sealing portion (21) to the outside of the sealing portion (21) in a direction away from the return port (111).

4. The cleaning equipment (100) according to claim 1, characterized in that, The sealing element (20) includes a positioning part (22), which is connected to the inner side of the peripheral wall of the return port (111), and the inner wall surface of the positioning part (22) is flush with the inner wall surface of the return air duct (11).

5. The cleaning equipment (100) according to claim 4, characterized in that, A groove (12) is provided on the inner wall of the return air duct (11) near the return interface (111), forming a first stepped surface (121). The positioning part (22) is connected to the groove (12) and abuts against the first stepped surface (121) along the axial direction of the return interface (111).

6. The cleaning equipment (100) according to claim 5, characterized in that, The inner wall of the groove (12) includes a first wall (122), a second wall (123), and a second step surface (124). The first wall (122) is connected to the first step surface (121). The second wall (123) is recessed relative to the first wall (122). The second step surface (124) is connected between the first wall (122) and the second wall (123). The positioning part (22) is provided with a positioning flange (221). The positioning flange (221) is connected to the inner side of the second wall (123) and abuts against the second step surface (124) along the axial direction.

7. The cleaning equipment (100) according to claim 1, characterized in that, The peripheral wall of the return interface (111) has a positioning hole (125), and the seal (20) further includes a positioning block (23) which is embedded in the positioning hole (125).

8. The cleaning equipment (100) according to claim 1, characterized in that, The host (10) includes a dust cup assembly (13), and the return port (111) is located on the side of the dust cup assembly (13). The end face of the return port (111) is inclined in the direction of return air in the direction close to the dust cup assembly (13).

9. A cleaning system (1000), characterized in that, include: The cleaning device (100) according to any one of claims 1-8; A base station (200) is detachably docked with the cleaning equipment (100).

10. The cleaning system (1000) according to claim 9, characterized in that, The base station (200) is provided with a bypass ventilation duct (210), the bypass ventilation duct (210) has a secondary interface that connects to the return air duct (11), the secondary interface is connected to the return interface (111), and the inner wall surface of the seal (20) does not protrude from the inner wall surface of the bypass ventilation duct (210).

11. The cleaning system (1000) according to claim 10, characterized in that, The sealing element (20) includes a sealing part (21), which is located on the outside of the return port (111) and abuts against the return port (111) and the auxiliary port along the axial direction of the return port (111).

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