Base station and cleaning device

Abstract

The application relates to a base station and a cleaning device. The base station comprises a base station body, a dust collection air duct, one end of the dust collection air duct is provided with a dust inlet, a sealing element is installed at the dust inlet, the sealing element comprises an elastic structure, the base station has a dust collection state and a non-dust collection state, when in the dust collection state, a negative pressure is generated in the dust collection air duct, the elastic structure is configured to be stretched away from the dust inlet under the action of the negative pressure in the dust collection air duct, and when in the non-dust collection state, the elastic structure can automatically retract. The stretched sealing element can be close to the outer wall of the cleaning body to realize sealing, when dust collection is completed, the elastic structure can automatically retract to be away from the cleaning body, so that the cooperation between the sealing element and the outer wall of the cleaning body is no longer close, the interference between the cleaning body and the sealing element in the process of returning to the base station or separating from the base station is reduced, the risk that the sealing element is folded or damaged due to scratching is reduced, and the sealing reliability in the subsequent dust collection process is improved.

Description

Technical Field

[0001] This application relates to the field of clean technology, and in particular to a base station and a cleaning device. Background Technology

[0002] In recent years, with the development of technology, cleaning robots have become increasingly intelligent, capable of cleaning within designated ground areas and greatly freeing up people's hands. Many cleaning robots now feature a base station dust collection function, transferring trash from the robot's smaller dustbin to a larger dust collection bin in the base station.

[0003] To enable the cleaning robot to connect with the base station for dust collection, a seal is usually installed at the dust inlet of the base station. However, in actual use, the seal is prone to interference with the cleaning robot, which can cause the seal to fail to seal the gap between the cleaning robot and the base station during dust collection, resulting in air leakage. Utility Model Content

[0004] Based on this, it is necessary to address the problem that the seals are prone to interference with the cleaning robot, which prevents the seals from sealing the gap between the cleaning robot and the base station during dust collection, thus causing air leakage. A base station and cleaning device are provided.

[0005] This application provides a base station, comprising:

[0006] The base station body has a dust collection duct, with a dust inlet at one end of the dust collection duct;

[0007] A sealing element is installed at the dust inlet;

[0008] The sealing component includes a telescopic structure; the base station has a dust collection state and a non-dust collection state. When it is in the dust collection state, a negative pressure is generated in the dust collection duct. The telescopic structure is constructed to extend away from the dust inlet under the negative pressure in the dust collection duct. When it is in the non-dust collection state, the telescopic structure can automatically retract.

[0009] The aforementioned base station incorporates a telescopic sealing structure. This structure extends away from the dust inlet under the negative pressure of the dust collection duct. The extended sealing element then approaches the outer wall of the cleaning unit, achieving a seal. After dust collection, the telescopic structure automatically retracts away from the cleaning unit, reducing the tight fit between the sealing element and the outer wall. This decreases interference between the cleaning unit and the sealing element during its return to or departure from the base station, reducing the risk of damage to the sealing element due to folding or scraping, and improving the sealing reliability during subsequent dust collection processes.

[0010] In one embodiment, the telescopic structure includes at least a first folded edge and a second folded edge arranged sequentially in a direction away from the dust inlet, the first folded edge and the second folded edge being adjacent to each other and arranged at an angle between them;

[0011] When in dust-collecting mode, the angle between the first and second folds increases to extend; when in non-dust-collecting mode, the angle between the first and second folds decreases to retract.

[0012] The method of extending and retracting the telescopic structure by changing the included angle between the first and second folds is simple and the process of extension and retraction is more reliable.

[0013] In one embodiment, the seal further includes a sealing flange connected to one end of the telescopic structure. The sealing flange is configured as an arc-shaped edge protruding away from the telescopic structure and protrudes from the base station body.

[0014] The sealing flange protrudes from the base station body to better connect with the cleaning body. Furthermore, since the sealing flange is constructed as an arc-shaped edge protruding away from the telescopic structure, it can achieve a sealing fit with the cleaning body through the arc-shaped edge. Compared to a flat sealing flange, the arc-shaped sealing flange can be closer to the cleaning body. Moreover, if the arc-shaped sealing flange rotates along with the telescopic structure during its extension, it will not affect its seal with the cleaning body, thus improving the reliability of the seal.

[0015] In one embodiment, the telescopic structure includes at least a first fold and a second fold, the first fold and the second fold being adjacent to each other and set at an angle;

[0016] When in dust-collecting mode, the angle between the first and second folds increases to extend; when in non-dust-collecting mode, the angle between the first and second folds decreases to retract.

[0017] One end of the sealing flange is connected to the end of the second fold that is away from the first fold, and the other end of the sealing flange is bent in a direction away from the center line of the dust inlet; and the sealing flange and the first fold are set at an angle.

[0018] When the end of the sealing flange furthest from the second fold bends towards the centerline of the dust inlet, under negative pressure, the sealing flange may press downwards against the telescopic structure, preventing reliable contact between the sealing flange and the cleaning body, thus causing seal failure. Therefore, allowing the end of the sealing flange furthest from the second fold to bend away from the centerline of the dust inlet improves the sealing reliability of the sealing flange.

[0019] In one embodiment, the seal is constructed as a resilient, integral structure.

[0020] The flexible sealant can better conform to the base station body and the cleaning body during sealing, improving the reliability of the seal. In addition, the telescopic structure is also flexible. The flexible telescopic structure can easily expand under the negative pressure of dust collection and automatically retract under normal pressure in non-dust collection conditions.

[0021] In one embodiment, the seal further includes a fixing structure connected to one end of the telescopic structure and fixed to the base station body.

[0022] By setting a fixed structure, the position of the telescopic structure can be fixed relative to the base station body, thereby improving the stability of the telescopic structure during the telescopic process.

[0023] In one embodiment, the base station body includes a housing and a bottom air duct detachably mounted on the housing. The bottom air duct has at least a partial dust collection air duct and a dust inlet, and a fixing structure is pressed between the housing and the bottom air duct.

[0024] This method of fixing the structure by pressing it between the housing and the bottom air duct, thereby fixing the seal, is simple and ensures the seal is in a reliable position. In addition, it can prevent the seal from being pulled out by external force.

[0025] In one embodiment, the fixing structure includes an annular stepped portion, the outer surface of which is positioned in the housing, and the inner surface of which is positioned in the bottom air duct.

[0026] By setting a fixed structure with a stepped section that cooperates with the bottom air duct and the shell, the positioning reliability of the fixed structure relative to the bottom air duct and the shell is improved, thereby improving the fixing reliability.

[0027] In one embodiment, the housing has an annular boss and a plurality of positioning posts arranged around the annular boss. The stepped portion is provided with a plurality of positioning holes. The outer surface of the stepped portion abuts against the annular boss, and each positioning post passes through a corresponding positioning hole.

[0028] In this way, before the bottom air duct is installed with the housing, the multiple positioning holes of the fixing structure can be matched with the multiple positioning posts of the housing one by one, and the outer surface of the stepped part can be abutted against the annular boss of the housing, thus realizing the pre-positioning of the seal on the housing. After the bottom air duct is installed into the housing, the seal can be reliably pressed between the two, simplifying the fixing process of the seal and ensuring high fixing reliability.

[0029] In one embodiment, the positioning post has a connection hole, and the base station body also includes multiple connectors, each connector passing through a bottom air duct and connected to a corresponding positioning hole.

[0030] In this way, the positioning post not only positions the seal, but also, since the positioning post is also the connection point between the housing and the bottom air duct, it reliably presses the seal, thus improving the sealing reliability.

[0031] In one embodiment, the fixing structure is further provided with an extension at one end of the step portion near the telescopic structure. The extension protrudes from the inner surface of the step portion, and the end face of the bottom air duct with the dust inlet abuts against the extension.

[0032] By setting the end face of the bottom air duct with the dust inlet to abut against the extension, it can limit the installation of the bottom air duct on the one hand, and provide some support for the telescopic structure on one side of the extension on the other hand, making the telescopic structure's expansion and contraction process more stable.

[0033] Another aspect of this application provides a cleaning device, including a cleaning body and a base station in any of the above embodiments. The cleaning body has a dust discharge port and is movable relative to the base station to dock with or separate from the base station. When the cleaning body docks with the base station and is in a dust collection state, the dust discharge port docks with the dust inlet, and the telescopic structure extends to make the seal abut against the cleaning body.

[0034] The aforementioned cleaning equipment incorporates a telescopic structure as a sealing element. This telescopic structure extends away from the dust inlet under the negative pressure of the dust collection duct. During this extension, the sealing element approaches the outer wall of the cleaning unit, achieving a seal. After dust collection is complete, the telescopic structure automatically retracts away from the cleaning unit, loosening the tight fit between the sealing element and the outer wall. This reduces interference between the cleaning unit and the sealing element during return to or departure from the base station, lowers the risk of damage to the sealing element due to folding or scraping, and improves the sealing reliability during subsequent dust collection processes.

[0035] In one embodiment, when in a non-dust-collecting state, the telescopic structure retracts to create a first gap between the seal and the cleaning body.

[0036] When not in dust collection mode, the base station and the cleaning unit need to be resealed. Therefore, the first gap not only does not affect dust collection, but also prevents interference between the cleaning unit and the seal during the movement of the cleaning unit relative to the base station—that is, during the cleaning unit's return to or departure from the base station. This avoids damage to the seal due to folding or scraping, improving the sealing reliability during subsequent dust collection. Furthermore, during the cleaning unit's return to the base station, it also prevents the cleaning unit from deviating from its designated path and failing to return to its correct position due to interference between the seal and the cleaning unit.

[0037] In one embodiment, the value of the first gap ranges from 0.5 mm to 0.5 mm.

[0038] When the value of the first gap is in the range of 0 mm to 1 mm, it can reduce the risk of interference between the cleaning body and the sealing element, reduce the manufacturing difficulty of the telescopic structure, and improve the reliability of telescopic movement.

[0039] In one embodiment, the base station body has a support surface for supporting the cleaning body, and the seal has a sealing surface protruding from the support surface. When the cleaning body is docked with the base station and is in a dust collection state, the sealing surface is in contact with the cleaning body; the bottom surface of the cleaning body has a dust discharge port.

[0040] The support surface, the bottom surface of the cleaning body, and the sealing surface are all inclined relative to the horizontal plane, and the three are parallel to each other.

[0041] In this way, the supporting surface, the bottom surface of the cleaning body, and the sealing surface can form a parallel connection, which can better transfer the garbage and other debris inside the cleaning body to the dust collection channel and reduce the blockage of garbage and debris. Attached Figure Description

[0042] Figure 1 This is a cross-sectional structural diagram of a base station in one or more embodiments of this application.

[0043] Figure 2 for Figure 1 A magnified view of part A in the base station shown.

[0044] Figure 3 for Figure 1 A cross-sectional view of the base station shown from another perspective.

[0045] Figure 4 for Figure 1 The diagram shows the structure of the seal in the base station.

[0046] Figure 5 for Figure 4 The diagram shows a cross-sectional view of the seal.

[0047] Figure 6 for Figure 1 The diagram shows a partial cross-sectional view of the base station in a docking state with the clean body.

[0048] Figure 7 for Figure 6 The diagram shows a partial cross-sectional view of the base station in a dust collection state.

[0049] Figure 8 for Figure 1 The diagram shows a partial structural diagram of the casing in the base station.

[0050] Figure 9 for Figure 8 The diagram shows a partial structural representation of the housing after the seals have been installed.

[0051] Figure 10 for Figure 1 The diagram shows the structure of the bottom air duct in the base station.

[0052] Explanation of reference numerals in the attached figures:

[0053] 100. Base station; 10. Base station body; 11. Shell; 111. Dust collection duct; 112. Dust inlet; 113. Annular boss; 114. Positioning post; 12. Bottom duct; 20. Seal; 21. Telescopic structure; 211. First fold; 212. Second fold; 22. Sealing flange; 221. Sealing surface; 23. Fixing structure; 231. Step; 2311. Positioning hole; 232. Extension; 200. Cleaning body; 210. Dust outlet; 220. Bottom surface. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0056] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0059] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0060] As described in the background section, after completing its cleaning task, the cleaning robot returns to the base station to transfer the waste from its dustbin to the dust collection bin within the base station. During this transfer, the cleaning robot's exhaust port needs to be aligned with the base station's dust inlet, and the gap between them must be sealed to prevent leakage. This sealing can be achieved using a sealing element, typically installed on the base station and protruding from the dust inlet. However, as the cleaning robot returns to the base station to align its exhaust port with the dust inlet, the robot's outer wall can compress the protruding sealing element, causing it to fold or become damaged due to friction. This can prevent the sealing element from effectively sealing the gap between the cleaning robot and the base station during dust collection, leading to air leakage.

[0061] Therefore, in order to solve the above problems, this application designs a base station and a cleaning device. By setting a sealing element including a telescopic structure, the telescopic structure can extend under the negative pressure of the dust collection duct to get close to the outer wall of the cleaning robot to achieve a seal. After the dust collection is completed, the telescopic structure can automatically retract to move away from the cleaning robot, thereby reducing the interference between the cleaning robot and the sealing element during the process of returning to or leaving the base station, reducing the risk of the sealing element being folded or damaged by scratches, and improving the sealing reliability.

[0062] The base station in this application embodiment can be applied to cleaning equipment, which includes a cleaning body, including but not limited to a sweeping robot, a sweeping and mopping robot, a floor scrubber, and a washing and mopping robot. The cleaning body refers to a structure capable of cleaning the floor, and the base station refers to a structure capable of cleaning and maintaining the cleaning body. That is, the cleaning body can be connected to or separated from the base station. When connected, the base station cleans and maintains the cleaning body; when separated, the cleaning body can perform cleaning operations on the floor.

[0063] The base station in this embodiment has a dust collection function, which can transfer garbage and other debris from the cleaning unit to the dust collection chamber in the base station for collection. Furthermore, in this embodiment, the power source for transferring the garbage is the negative pressure generated by the base station within the dust collection duct. Under the action of negative pressure, garbage and other debris are drawn from the cleaning unit into the dust collection chamber of the base station.

[0064] See Figures 1-6 An embodiment of this application provides a base station 100, which includes a base station body 10 and a sealing member 20.

[0065] The base station body 10 includes a housing 11, which includes a support surface for supporting the cleaning body 200, allowing the cleaning body 200 to move on the housing 11 to connect or disconnect from the base station 100. Specifically, the support surface can support the drive wheels of the cleaning body 200. Additionally, the base station body 10 may also include a positioning detection module, a power module, and a control module. The positioning detection module can also be installed on the cleaning body 200 to detect whether it is docked on the base station 100. The base station 100 may only include the housing 11, the power module, and the control module. Specifically, after the cleaning body 200 returns to the base station 100, the positioning detection module of the base station 100 or the positioning detection module on the cleaning body 200 can detect the positioning status of the cleaning body 200. Then, the control module can control the power module to clean the rollers, drums, etc., of the cleaning body 200, or to transfer the waste in the dust box of the cleaning body 200, based on the positioning status of the cleaning body 200.

[0066] The base station body 10 has a dust collection duct 111, with a dust inlet 112 at one end. The dust inlet 112 can connect to the dust exhaust port 210 of the cleaning body 200 when it is connected to the base station 100. The other end of the dust collection duct 111 connects to a dust collection chamber, where a bag for collecting garbage can be placed. Garbage transferred from the dust exhaust port 210 of the cleaning body 200 can directly enter the garbage bag in the dust collection chamber through the dust collection duct 111 for collection.

[0067] The seal 20 is installed at the dust inlet 112. Specifically, the seal 20 should be arranged around the dust inlet 112 to seal the gap between the dust inlet 112 and the dust outlet 210 of the cleaning body 200 in a circumferential manner, thereby preventing the leakage of garbage and other debris during the transfer process.

[0068] The sealing element 20 includes a telescopic structure 21. The base station 100 has a dust collection state and a non-dust collection state. When it is in the dust collection state, a negative pressure is generated in the dust collection duct 111. The telescopic structure 21 is configured to extend away from the dust inlet 112 under the negative pressure in the dust collection duct 111. When it is in the non-dust collection state, the telescopic structure 21 can automatically retract.

[0069] In the dust collection state, a negative pressure is generated inside the dust collection duct 111. This negative pressure can generate a suction force on the dust collection duct 111 through the fan on the base station body 10, thereby generating a suction airflow. In the non-integrated state, the negative pressure inside the dust collection duct 111 disappears, and the integrated duct returns to normal pressure.

[0070] In this embodiment, the direction away from the dust inlet 112 is specifically along a direction perpendicular to the support surface of the housing 11 and away from the support surface. Specifically, it can be... Figure 3 The X direction is shown.

[0071] In summary, the base station 100 of this application embodiment includes a telescopic structure 21 in the sealing element 20. The telescopic structure 21 can extend away from the dust inlet 112 under the negative pressure of the dust collection duct 111. At this time, the extended sealing element 20 can approach the outer wall of the cleaning body 200 to achieve a seal between the sealing element 200 and the outer wall of the cleaning body 200. After dust collection is completed, the telescopic structure 21 can automatically retract away from the cleaning body 200, thereby making the fit between the sealing element 20 and the outer wall of the cleaning body 200 less tight. This reduces the interference between the cleaning body 200 and the sealing element 20 during the process of returning to or leaving the base station 100, reduces the risk of the sealing element 20 being folded or damaged by scratches, and improves the sealing reliability in the subsequent dust collection process.

[0072] It should also be noted that the telescopic structure 21 of this application is part of the seal 20. It moves closer to or further away from the cleaning body 200 by the movement of the seal 20 itself. Therefore, the structure is simplified, the reliability of the sealing movement is improved, and the risk of the seal 20 being flipped or damaged by scratches is reduced, and the sealing reliability is improved.

[0073] In addition, since the fit between the seal 20 and the outer wall of the cleaning body 200 is no longer tight when the dust is not collected, the risk of the cleaning body 200 deviating from the set route and failing to return to the charging position is reduced during the process of the cleaning body 200 returning to the base station 100.

[0074] See Figures 4-7 Specifically, in the embodiments of this application, the seal 20 is constructed as a flexible integral structure.

[0075] The elastic seal 20 can better fit the base station body 10 and the cleaning body 200 during sealing, improving the reliability of the seal. In addition, the telescopic structure 21 is also elastic. The elastic telescopic structure 21 can easily expand under the negative pressure of the dust collection state and automatically retract under normal pressure in the non-dust collection state.

[0076] Optionally, the seal 20 can be a rubber seal 20, a silicone seal 20, etc., and there are no specific restrictions.

[0077] In some embodiments, the telescopic structure 21 includes at least a first folded edge 211 and a second folded edge 212 arranged sequentially in a direction away from the dust inlet 112. The first folded edge 211 and the second folded edge 212 are adjacent to each other and are set at an angle. When in the dust collection state, the angle between the first folded edge and the second folded edge 212 increases to extend; when in the non-integrated state, the angle between the first folded edge 211 and the second folded edge 212 decreases to retract.

[0078] Under the negative pressure of the dust collection state, a negative pressure environment is formed on the inner side of the first fold 211 and the second fold 212, while the outer side is a normal pressure environment. Therefore, the first fold 211 and the second fold 212 will be stretched, increasing the angle between them and causing them to stretch. In the non-dust collection state, the pressure on the inner side of the first fold 211 and the second fold 212 is the same as the pressure on the outer side. Therefore, the first fold 211 and the second fold 212 will no longer be stretched, and the angle between them will decrease to automatically retract.

[0079] Therefore, the method of extending and retracting the telescopic structure 21 by changing the included angle between the first fold 211 and the second fold 212 is simple and the extension and retraction process is more reliable.

[0080] Specifically, along the direction away from the dust inlet 112, the first folded edge 211 is inclined away from the axis of the dust inlet 112, and the second folded edge 212 is inclined towards the axis of the dust inlet 112. Thus, the angle formed between the first folded edge 211 and the second folded edge 212 will be opened towards the dust inlet 112. Therefore, under the negative pressure of the dust collection state, the connecting edge between the first folded edge 211 and the second folded edge 212 will be subjected to an inward pulling force, causing the first folded edge 211 and the second folded edge 212 to move away from the dust inlet 112.

[0081] Optionally, the number of first folded edges 211 and second folded edges 212 may include one or more, and the first folded edges 211 and second folded edges 212 may also be provided in pairs. In the embodiments of this application, there is only one first folded edge 211 and one second folded edge 212.

[0082] Optionally, the angle between the first folded edge 211 and the second folded edge 212 in the non-dust-collecting state is between 30 degrees and 90 degrees.

[0083] In some embodiments, the seal 20 further includes a sealing flange 22, which is connected to one end of the telescopic structure 21. The sealing flange 22 is configured as an arc-shaped edge protruding away from the telescopic structure 21 and protrudes from the base station body 10.

[0084] The sealing flange 22 refers to the part of the sealing element 20 that can directly contact and seal with the cleaning body 200. The sealing flange 22 protrudes from the base station body 10 to better mate with the cleaning body 200. Furthermore, since the sealing flange 22 is constructed as an arc-shaped edge protruding away from the telescopic structure 21, it can achieve a sealing fit with the cleaning body 200 through the arc-shaped edge. Compared to the flat sealing flange 22, the arc-shaped sealing flange 22 can be closer to the cleaning body 200. Moreover, if the arc-shaped sealing flange 22 rotates along with the telescopic structure 21 during its extension, it will not affect its seal with the cleaning body 200, thus improving the reliability of the seal.

[0085] In some embodiments, one end of the sealing flange 22 may be connected to the end of the second folded edge 212 that is away from the first folded edge 211, and the sealing flange 22 and the first folded edge 211 are set at an angle.

[0086] Thus, under the negative pressure of the dust collection state, when the angle between the first fold 211 and the second fold 212 increases to stretch, since the sealing flange 22 is connected to the end of the second fold 212 away from the first fold 211, it will also rotate around the connection between the first fold 211 and the second fold 212 along with the second fold 212. At this time, since the sealing flange 22 is an arc-shaped sealing flange 22, even if it rotates, it can still fit with the cleaning body 200, thus improving the reliability of the seal.

[0087] Specifically, the end of the sealing flange 22 furthest from the second fold 212 can be bent away from the centerline of the dust inlet 112. It can be understood that when the end of the sealing flange 22 furthest from the second fold 212 bends towards the centerline of the dust inlet 112, under negative pressure, the sealing flange 22 may press downwards against the telescopic structure 21, preventing reliable contact between the sealing flange 22 and the cleaning body 200, thus causing seal failure. Therefore, allowing the end of the sealing flange 22 furthest from the second fold 212 to be bent away from the centerline of the dust inlet 112 improves the sealing reliability of the sealing flange 22.

[0088] In some embodiments, the sealing element 20 further includes a fixing structure 23, which is connected to one end of the telescopic structure 21 and fixed to the base station body 10.

[0089] By setting the fixed structure 23, the position of the telescopic structure 21 can be fixed relative to the base station body 10, thereby improving the stability of the telescopic structure 21 during the telescopic process.

[0090] Combination Figure 10 Specifically, the base station body 10 includes a housing 11 and a bottom air duct 12 detachably mounted on the housing 11. The bottom air duct 12 has at least a partial dust collection air duct 111 and a dust inlet 112. The fixing structure 23 is pressed between the housing 11 and the bottom air duct 12.

[0091] The housing 11 and the bottom air duct 12 are two spliced ​​housing structures. When the bottom air duct 12 is installed on the housing 11, the fixing structure 23 can be pressed between the housing 11 and the bottom air duct 12, thereby fixing the position of the fixing structure 23 relative to the housing 11 and the bottom air duct 12. This method of fixing the fixing structure 23 by pressing it between the housing 11 and the bottom air duct 12, and thus fixing the seal 20, is simple and ensures the reliable position of the seal 20. In addition, it can also prevent the seal 20 from being pulled out by external force.

[0092] Furthermore, the fixing structure 23 includes an annular step portion 231, the outer surface of which is positioned on the housing 11, and the inner surface of which is positioned on the bottom air duct 12.

[0093] The stepped portion 231 is formed by connecting at least two angled annular edges. The outer surface of the stepped portion 231 is an outer stepped surface, and the inner surface of the stepped portion 231 is an inner stepped surface. When the outer surface of the stepped portion 231 is positioned on the housing 11, that is, the outer stepped surface of the stepped portion 231 is positioned on the housing 11, specifically, the housing 11 should have a first mating stepped surface that mates with the outer stepped surface of the stepped portion 231, so that the outer stepped surface and the first mating stepped surface correspond and fit together, thus achieving the positioning of the outer surface of the stepped portion 231 on the housing 11. When the inner surface of the stepped portion 231 is positioned on the bottom air duct 12, that is, the inner stepped surface of the stepped portion 231 is positioned on the bottom air duct 12, specifically, the bottom air duct 12 should have a second mating stepped surface that mates with the inner stepped surface of the stepped portion 231, so that the inner stepped surface and the second mating surface correspond and fit together, thus achieving the positioning of the inner surface of the stepped portion 231 on the bottom air duct 12. The first mating step surface can be the inner surface of the housing 11, and the second mating step surface can be the outer surface of the bottom air duct 12.

[0094] Therefore, by setting the fixed structure 23 to have a stepped part 231 that cooperates with the bottom air duct 12 and the housing 11, the positioning reliability of the fixed structure 23 relative to the bottom air duct 12 and the housing 11 is improved, thereby improving the fixing reliability.

[0095] Combination Figure 8 and Figure 9 Specifically, the housing 11 has an annular boss 113 and a plurality of positioning posts 114 arranged around the annular boss 113. The stepped portion 231 of the fixing structure 23 is provided with a plurality of positioning holes 2311. The outer surface of the stepped portion 231 abuts against the annular boss 113, and each positioning post 114 passes through a corresponding positioning hole 2311.

[0096] In this way, before the bottom air duct 12 is installed with the housing 11, the multiple positioning holes 2311 of the fixing structure 23 can be matched with the multiple positioning posts 114 of the housing 11 one by one, and the outer surface of the step portion 231 can abut against the annular boss 113 of the housing 11, thus realizing the pre-positioning of the seal 20 on the housing 11. After the bottom air duct 12 is installed into the housing 11, the seal 20 can be reliably pressed between the two, simplifying the fixing process of the seal 20 and ensuring high fixing reliability.

[0097] More specifically, the positioning post 114 has a connection hole, and the base station body 10 also includes multiple connectors, each connector passing through the bottom air duct 12 and connected to a corresponding positioning hole 2311.

[0098] Multiple through holes can be opened on the bottom air duct 12. The positions of these through holes correspond one-to-one with the positions of the connecting holes on the multiple positioning posts 114. The connector can pass through the through holes and connect to the connecting holes.

[0099] Thus, the positioning post 114 not only positions the seal 20, but also, since the positioning post 114 is also the connection point between the housing 11 and the bottom air duct 12, it reliably presses the seal 20, thereby improving the fixing reliability of the seal 20.

[0100] In some embodiments, the fixing structure 23 of the seal 20 is provided with an extension 232 at one end of the step portion 231 near the telescopic structure 21. The extension 232 protrudes from the inner surface of the step portion 231, and the end face of the bottom air duct 12 with the dust inlet 112 abuts against the extension 232.

[0101] Since the extension 232 protrudes from the inner surface of the step 231, a step is formed between it and the inner surface of the step 231. When the end of the bottom air duct 12 with the dust inlet 112 extends into the inner hole of the step 231 of the fixing structure 23, on the one hand, the outer peripheral side of the dust inlet 112 can cooperate with the inner surface of the step 231, and on the other hand, the outer end face of the dust inlet 112 will abut against the extension 232 and form a restriction.

[0102] Therefore, by setting the end face of the bottom air duct 12 with the dust inlet 112 to abut against the extension 232, it can limit the installation of the bottom air duct 12 on the one hand, and provide some support for the telescopic structure 21 on one side of the extension 232 on the other hand, making the telescopic structure 21 more stable during the telescopic process.

[0103] Based on the same inventive concept, this application also provides a cleaning device, including a cleaning body 200 and a base station 100 in any of the above embodiments. The cleaning body 200 has a dust discharge port 210 and is movable relative to the base station 100 to dock with or separate from the base station 100. When the cleaning body 200 docks with the base station 100 and is in a dust collection state, the dust discharge port 210 docks with the dust inlet 112, and the telescopic structure 21 extends to make the sealing member 20 abut against the cleaning body 200.

[0104] By setting the sealing element 20 to include a telescopic structure 21, and by allowing the telescopic structure 21 to extend away from the dust inlet 112 under the negative pressure of the dust collection duct 111, the extended sealing element 20 can approach the outer wall of the cleaning body 200 to achieve a seal between the sealing element 200 and the outer wall of the cleaning body 200. After dust collection is completed, the telescopic structure 21 can automatically retract to move away from the cleaning body 200, thereby reducing the tight fit between the sealing element 20 and the outer wall of the cleaning body 200. This reduces the interference between the cleaning body 200 and the sealing element 20 during the process of returning to or leaving the base station 100, reduces the risk of the sealing element 20 being folded or damaged by scratches, and improves the sealing reliability in the subsequent dust collection process.

[0105] Furthermore, when in a non-dust-collecting state, the telescopic structure 21 retracts to create a first gap between the seal 20 and the cleaning body 200.

[0106] When not in dust collection mode, the base station 100 and the cleaning unit 200 need to be resealed. Therefore, the first gap not only does not affect dust collection, but also prevents interference between the cleaning unit 200 and the sealing element 20 during the movement of the cleaning unit 200 relative to the base station 100, i.e., during the process of the cleaning unit 200 returning to or leaving the base station 100. This avoids the sealing element 20 from being folded or damaged by friction, improving the sealing reliability during subsequent dust collection. In addition, during the process of the cleaning unit 200 returning to the base station 100, it also avoids the situation where the cleaning unit 200 deviates from the set route and fails to return to its original position due to interference between the sealing element 20 and the cleaning unit 200.

[0107] Specifically, the value of the first gap ranges from 0.5 mm to 3 mm.

[0108] If the value of the first gap is too small, it will increase the risk of interference between the cleaning body 200 and the seal 20. If the value of the first gap is too large, the extension or retraction distance of the seal 20 will increase, which will increase the manufacturing difficulty of the telescopic structure 21 of the seal 20 and reduce the reliability of the telescopic mechanism. Therefore, when the value of the first gap is in the range of 0.5 mm to 3 mm, it can reduce the risk of interference between the cleaning body 200 and the seal 20, reduce the manufacturing difficulty of the telescopic structure 21, and improve the reliability of the telescopic mechanism.

[0109] Optionally, the value of the first gap is one of 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm.

[0110] In some embodiments, the base station body 10 has a support surface, and the seal 20 has a sealing surface 221 protruding from the support surface. When the cleaning body 200 is docked with the base station 100 and is in a dust collection state, the sealing surface 221 is in contact with the cleaning body 200. The bottom surface 220 of the cleaning body 200 has a dust discharge port 210. The support surface, the bottom surface 220 of the cleaning body 200, and the sealing surface 221 are all inclined relative to the horizontal plane, and the three are parallel to each other.

[0111] In this way, the supporting surface, the bottom surface 220 of the cleaning body 200 and the sealing surface 221 can form a parallel connection, which can better transfer the garbage and other debris in the cleaning body 200 to the dust collection channel and reduce the blockage of garbage and debris.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A base station, characterized in that, include: The base station body has a dust collection duct, and one end of the dust collection duct is provided with a dust inlet; A sealing element is installed at the dust inlet; The sealing element includes a telescopic structure; the base station has a dust collection state and a non-dust collection state. When it is in the dust collection state, a negative pressure is generated in the dust collection duct. The telescopic structure is configured to extend away from the dust inlet under the negative pressure in the dust collection duct. When it is in the non-dust collection state, the telescopic structure can automatically retract.

2. The base station according to claim 1, characterized in that, The telescopic structure includes at least a first folded edge and a second folded edge arranged sequentially in a direction away from the dust inlet, wherein the first folded edge and the second folded edge are adjacent to each other and are arranged at an angle; When in the dust-collecting state, the angle between the first fold and the second fold increases to extend; when in the non-dust-collecting state, the angle between the first fold and the second fold decreases to retract.

3. The base station according to claim 1, characterized in that, The sealing element also includes a sealing flange, which is connected to one end of the telescopic structure. The sealing flange is constructed as an arc-shaped edge protruding away from the telescopic structure and protrudes from the base station body.

4. The base station according to claim 3, characterized in that, The telescopic structure includes at least a first folded edge and a second folded edge, wherein the first folded edge and the second folded edge are adjacent to each other and are set at an angle; When in the dust-collecting state, the angle between the first fold and the second fold increases to extend; when in the non-dust-collecting state, the angle between the first fold and the second fold decreases to retract. One end of the sealing flange is connected to the end of the second folded edge that is away from the first folded edge, and the other end of the sealing flange is bent in a direction away from the center line of the dust inlet; and the sealing flange and the first folded edge are set at an angle.

5. The base station according to claim 1, characterized in that, The seal is constructed as a flexible, integral structure.

6. The base station according to claim 1, characterized in that, The sealing element also includes a fixing structure, which is connected to one end of the telescopic structure and fixed to the base station body.

7. The base station according to claim 6, characterized in that, The base station body includes a housing and a bottom air duct detachably mounted on the housing. The bottom air duct has at least a portion of the dust collection air duct and the dust inlet. The fixing structure is pressed between the housing and the bottom air duct.

8. The base station according to claim 7, characterized in that, The fixing structure includes an annular stepped portion, the outer surface of which is positioned on the housing, and the inner surface of which is positioned on the bottom air duct.

9. The base station according to claim 8, characterized in that, The housing has an annular boss and a plurality of positioning posts arranged around the annular boss. The stepped portion is provided with a plurality of positioning holes. The outer surface of the stepped portion abuts against the annular boss. Each positioning post passes through a corresponding positioning hole.

10. The base station according to claim 9, characterized in that, The positioning post has a connection hole, and the base station body also includes multiple connectors, each of which passes through the bottom air duct and is connected to a corresponding positioning hole.

11. The base station according to claim 7, characterized in that, The fixing structure also has an extension at one end of the step portion near the telescopic structure. The extension protrudes from the inner surface of the step portion, and the end face of the bottom air duct with the dust inlet abuts against the extension.

12. A cleaning device, characterized in that, The system includes a cleaning body and a base station as described in any one of claims 1 to 11. The cleaning body has a dust exhaust port and is movable relative to the base station to dock with or separate from the base station. When the cleaning body docks with the base station and is in a dust collection state, the dust exhaust port docks with the dust inlet, and the telescopic structure extends to make the sealing member abut against the cleaning body.

13. The cleaning equipment according to claim 12, characterized in that, When in the non-dust-collecting state, the telescopic structure retracts to create a first gap between the seal and the cleaning body.

14. The cleaning equipment according to claim 13, characterized in that, The value of the first gap ranges from 0.5 mm to 3 mm.

15. The cleaning equipment according to claim 12, characterized in that, The base station body has a support surface that supports the cleaning body, and the sealing element has a sealing surface that protrudes from the support surface. When the cleaning body is connected to the base station and is in the dust collection state, the sealing surface is in contact with the cleaning body; the bottom surface of the cleaning body has the dust discharge port. The supporting surface, the bottom surface of the cleaning body, and the sealing surface are all inclined relative to the horizontal plane, and the three are parallel to each other.

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