Cleaning device, base station and cleaning system

Abstract

The utility model relates to a kind of cleaning device, base station and cleaning system, cleaning device includes: cleaning chassis, with the inclined bottom surface for guiding dirty liquid flow, cleaning component, including first cleaning module and compacting structure, first cleaning module is set as can move along inclined bottom surface to scrape inclined bottom surface, compacting structure is configured to can act on first cleaning module, for first cleaning module is applied to the pressure towards inclined bottom surface, make first cleaning module keep contact with inclined bottom surface in the process of movement.The application ensures that cleaning module can keep stable contact with bottom surface in the state of motion by compacting structure, so as to overcome the gap problem caused by manufacturing tolerance, part wear or slightly uneven bottom surface, so that scraping force is uniform and continuous, improve the efficiency of single cleaning action.When the device is running, scraping and dirty liquid flow guide work cooperatively, compacting force guarantees the effectiveness of scraping, and the inclined surface sends away the scraped dirty liquid, preventing secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robots, and in particular to a cleaning device, a base station, and a cleaning system. Background Technology

[0002] With the rapid development of smart home technology, cleaning robots are becoming increasingly popular due to their highly automated cleaning functions, providing users with great convenience. Currently, advanced cleaning robots are usually equipped with dedicated base stations, which provide docking locations for the robots and perform multiple maintenance functions such as mop washing, autonomous charging, and garbage collection.

[0003] However, in practice, it has been found that when cleaning base stations, wastewater and dirt generated during the mop cleaning process can easily remain and accumulate on the surface of the base station chassis. If not cleaned thoroughly and promptly, this can not only breed bacteria and produce odors, but also affect the effectiveness of subsequent cleaning.

[0004] To address this issue, existing technologies propose using scrapers on a cleaning chassis to remove residual dirt from its surface through a scraping motion. However, because cleaning chassis are typically designed with a sloping bottom to guide wastewater towards the drain, fixed or simply installed scrapers cannot maintain full and tight contact with the sloping surface throughout the entire scraping stroke. This results in the scraper only partially contacting the bottom surface, leading to uneven cleaning, leaving blind spots, and failing to completely remove residual dirt. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a cleaning device, a base station and a cleaning system.

[0006] This utility model provides a cleaning device suitable for base stations in cleaning systems, comprising:

[0007] The cleaning chassis has a sloping bottom surface for guiding the flow of waste liquid;

[0008] A cleaning assembly includes a first cleaning module and a clamping structure. The first cleaning module is configured to move along the inclined bottom surface to scrape the inclined bottom surface. The clamping structure is configured to act on the first cleaning module to apply pressure toward the inclined bottom surface, so that the first cleaning module remains in contact with the inclined bottom surface during movement.

[0009] In the above technical solution, the first cleaning module includes:

[0010] A rotating shaft is disposed on the cleaning chassis and is rotatable relative to the cleaning chassis;

[0011] At least one cleaning arm is connected to the rotating shaft and is capable of deflecting relative to the rotating shaft; wherein the clamping structure is disposed on the rotating shaft and applies pressure to the cleaning arm, causing the cleaning arm to tend to deflect toward the inclined bottom surface.

[0012] In any of the above technical solutions, the clamping structure includes an elastic element.

[0013] In any of the above technical solutions, the rotating shaft and the cleaning arm are hinged together by a hinge shaft, and the elastic element includes a torsion spring, which is sleeved on the hinge shaft and has two arms abutting against the rotating shaft and the cleaning arm.

[0014] In any of the above technical solutions, the rotating shaft portion includes:

[0015] The connecting part is detachably connected to the cleaning chassis;

[0016] The cover is rotatably mounted on the connecting part, and the cleaning arm is connected to the cover.

[0017] In any of the above technical solutions, the top of the cover portion is provided with a transmission structure, which is adapted to be detachably connected to the mop portion of the sweeping robot, so that the cover portion can be driven to rotate by the mop portion.

[0018] In any of the above technical solutions, a bearing is provided between the cover portion and the connecting portion.

[0019] In any of the above technical solutions, the cleaning assembly further includes a second cleaning module fixed to the cleaning chassis. The second cleaning module is used to clean the wiping cloth portion and is provided with a through groove. At least a portion of the cover portion extends into the through groove and rotatably engages with the through groove. The transmission structure is configured to be detachably connected to the wiping cloth portion via the through groove. This utility model also provides a base station, including:

[0020] The base station body is equipped with a docking station for the sweeping robot to dock;

[0021] The cleaning component as described in any of the preceding claims is located at the docking position.

[0022] This utility model also provides a cleaning system, characterized in that it includes:

[0023] Robot vacuum cleaner;

[0024] As described in any of the preceding claims, the sweeping robot is adapted to dock at or drive out of the docking position of the base station.

[0025] The cleaning device of this invention, firstly, utilizes an inclined bottom surface that allows the wastewater generated during the cleaning process to flow naturally in a predetermined direction under the influence of gravity, preventing the accumulation and overflow of wastewater on the chassis surface. This creates favorable conditions for the centralized collection or discharge of wastewater, fundamentally improving the base station's sewage discharge capacity from a structural perspective. Secondly, the first cleaning module is specifically designed to move along the inclined bottom surface and perform a scraping action. This allows it to actively remove stubborn stains, residual particles, and sludge adhering to the inclined surface, rather than merely wiping the surface, thus achieving deep cleaning of the chassis working surface. In particular, the clamping structure continuously applies pressure towards the inclined bottom surface to the first cleaning module, ensuring that the cleaning module maintains stable and tight contact with the bottom surface even in motion. This clamping force overcomes gap problems caused by manufacturing tolerances, part wear, or slight unevenness of the bottom surface, resulting in uniform and continuous scraping force, significantly improving the efficiency and thoroughness of a single cleaning action. During operation, the entire device works in tandem with the scraping and wastewater diversion mechanisms. The clamping force ensures the effectiveness of the scraping, while the inclined surface promptly removes the scraped wastewater, preventing secondary contamination. This compact design significantly reduces the risk of odors, blockages, or bacterial growth caused by residual dirt inside the base station, without requiring a complex control system or frequent manual intervention. It also improves the overall hygiene level of the cleaning system and the ease of maintenance for long-term use. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of a cleaning device proposed in an embodiment of the present invention;

[0027] Figure 2 This is a top view of the cleaning device according to an embodiment of the present invention;

[0028] Figure 3 This is a side view of the cleaning device according to an embodiment of the present invention;

[0029] Figure 4 This is a cross-sectional structural schematic diagram of a cleaning device according to an embodiment of the present invention;

[0030] Figure 5 This is an exploded view of the cleaning component according to an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the main structure of the first cleaning module according to an embodiment of the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of the first cleaning module proposed in an embodiment of the present invention;

[0033] Figure 8This is an exploded structural diagram of the first cleaning module proposed in an embodiment of the present invention.

[0034] The correspondence between the reference numerals and the component names is as follows:

[0035] 10. Cleaning device; 100. Cleaning chassis; 110. Inclined bottom surface; 120. Connecting structure; 200. Cleaning assembly; 210. First cleaning module; 211. Rotating shaft; 2111. Connecting part; 2112. Cover part; 21121. Transmission structure; 2113. Bearing; 212. Cleaning arm; 213. Hinge shaft; 220. Pressing structure; 221. Torsion spring; 222. Support arm; 230. Second cleaning module; 231. Through groove. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0038] The following is a reference to the appendix. Figure 1 To be continued Figure 8 This invention describes the cleaning device 10, base station, and cleaning system provided by this utility model.

[0039] The cleaning device 10 includes a cleaning chassis 100 and a cleaning assembly 200. The cleaning chassis 100 has an inclined bottom surface 110 for guiding the flow of waste liquid. The cleaning assembly 200 includes a first cleaning module 210 and a clamping structure 220. The first cleaning module 210 is configured to move along the inclined bottom surface 110 to scrape the inclined bottom surface 110. The clamping structure 220 is configured to act on the first cleaning module 210 to apply pressure toward the inclined bottom surface 110 to the first cleaning module 210, so that the first cleaning module 210 remains in contact with the inclined bottom surface 110 during movement.

[0040] First, the inclined bottom surface 110 allows the wastewater generated during cleaning to flow naturally in a predetermined direction under gravity, preventing the accumulation and overflow of wastewater on the chassis surface. This creates favorable conditions for the centralized collection or discharge of wastewater, fundamentally improving the base station's sewage discharge capacity from a structural perspective. Second, the first cleaning module 210 is specifically designed to move along the inclined bottom surface 110 and perform a scraping action. This allows it to actively remove stubborn stains, residual particles, and sludge adhering to the inclined surface, rather than simply wiping the surface, thus achieving deep cleaning of the chassis working surface. In particular, the clamping structure 220 continuously applies pressure towards the inclined bottom surface 110 to the first cleaning module 210, ensuring that the cleaning module maintains stable and tight contact with the bottom surface even in motion. This clamping force overcomes gap problems caused by manufacturing tolerances, part wear, or slight unevenness of the bottom surface, making the scraping force uniform and continuous, significantly improving the efficiency and thoroughness of a single cleaning action. During operation, the entire device works in tandem with the scraping and wastewater diversion mechanisms. The clamping force ensures the effectiveness of the scraping, while the inclined surface promptly removes the scraped wastewater, preventing secondary contamination. This compact design significantly reduces the risk of odors, blockages, or bacterial growth caused by residual dirt inside the base station, without requiring a complex control system or frequent manual intervention. It also improves the overall hygiene level of the cleaning system and the ease of maintenance for long-term use.

[0041] In some embodiments, the first cleaning module 210 includes a rotating shaft portion 211 and at least one cleaning arm 212. The rotating shaft portion 211 is disposed on the cleaning chassis 100 and is rotatable relative to the cleaning chassis 100. The cleaning arm 212 is connected to the rotating shaft portion 211 and is deflectable relative to the rotating shaft portion 211. A pressing structure 220 is disposed on the rotating shaft portion 211 and applies pressure to the cleaning arm 212, causing the cleaning arm 212 to tend to deflect toward the inclined bottom surface 110.

[0042] In this embodiment, the first cleaning module 210 adopts a combined structure of a rotating shaft 211 and a deflectable cleaning arm 212, and cooperates with a clamping structure 220 disposed on the rotating shaft 211 to achieve a stable, adaptive, and efficient cleaning effect. The technical advantage lies in the fact that the rotation of the rotating shaft 211 drives the cleaning arm 212 to sweep along the inclined bottom surface 110, ensuring that the cleaning range can fully cover the entire inclined area. The design of the cleaning arm 212 being deflectable relative to the rotating shaft 211 allows it to flexibly adapt to any minor unevenness or shape changes that may exist on the inclined bottom surface 110, thereby maintaining effective contact at all times. Crucially, the clamping structure 220 directly applies pressure to the cleaning arm 212, giving it a continuous tendency or torque to deflect towards the inclined bottom surface 110. This tendency translates into a stable clamping force between the cleaning arm 212 and the inclined surface, ensuring that the scraping action is uniform and continuous, effectively removing attached stains.

[0043] In some embodiments, the clamping structure 220 includes an elastic element. In this embodiment, the clamping structure 220 employs an elastic element, which provides a continuous and automatically adjustable clamping force through its elastic deformation. When compressed or torsioned, the elastic element generates an elastic force that restores its original shape, which is directly converted into a stable pressure pressing the cleaning arm 212 against the inclined bottom surface 110. During operation, when the cleaning arm 212 experiences slight displacement due to uneven bottom surface, wear, or encountering foreign objects, the elastic element deforms accordingly, thereby buffering the impact and adaptively maintaining a basically constant clamping force. This avoids problems such as component damage due to excessive rigid pressure or cleaning failure due to insufficient pressure. This design not only ensures the reliability and consistency of the contact force between the cleaning arm 212 and the bottom surface but also simplifies the structure, achieving long-term effective clamping without complex adjustment mechanisms, thus improving the durability and ease of maintenance of the entire device.

[0044] In some embodiments, the rotating shaft 211 and the cleaning arm 212 are hinged together by a hinge shaft 213. The elastic element includes a torsion spring 221, which is sleeved on the hinge shaft 213 and has two arms 222 abutting against the rotating shaft 211 and the cleaning arm 212.

[0045] By directly mounting the torsion spring 221 onto the hinge shaft 213 connecting the rotating shaft 211 and the cleaning arm 212, and having the two arms 222 of the torsion spring 221 abut against both, an extremely compact and efficient pressure transmission and adaptive adjustment are achieved. The torsional force of the torsion spring 221 is directly converted into a torque driving the cleaning arm 212 to deflect toward the inclined bottom surface 110 through the abutment of the arms 222. The force transmission path is short and direct, with minimal energy loss and sensitive response. This structure highly integrates the elastic clamping function with the hinge rotating pair in physical space, significantly saving installation space and simplifying overall assembly. During operation, any deflection of the cleaning arm 212 around the hinge shaft 213 will cause a corresponding torsion of the torsion spring 221, thereby generating a counteracting restoring torque in real time. This allows the pressure of the cleaning arm 212 on the chassis surface to be dynamically fine-tuned according to the contact situation, maintaining stability. This design not only ensures the durability and reliability of the clamping force, but also improves the module's durability and ease of maintenance due to its simple structure and fewer parts.

[0046] In some embodiments, the rotating shaft portion 211 includes a connecting portion 2111 and a cover portion 2112. The connecting portion 2111 is detachably connected to the cleaning chassis 100, and the cover portion 2112 is rotatably mounted on the connecting portion 2111. The cleaning arm 212 is connected to the cover portion 2112.

[0047] By dividing the rotating shaft portion 211 into a separate structure of a connecting portion 2111 and a cover portion 2112, optimization of installation, maintenance, and functional load-bearing is achieved. The detachable connection between the connecting portion 2111 and the cleaning chassis 100 allows the entire rotating shaft module to be easily installed to a predetermined workstation or removed entirely from the chassis, greatly simplifying the assembly process and disassembly operations during later maintenance. The cover portion 2112 is rotatably mounted on the connecting portion 2111 and undertakes the actual rotational movement function, while the cleaning arm 212 is directly connected to the cover portion 2112, thereby reliably transmitting the rotational movement of the drive unit to the cleaning arm 212. This design structurally separates the functions of fixed support and dynamic load-bearing, with the connecting portion 2111 serving as the static installation base and the cover portion 2112 serving as the dynamic rotating carrier. This not only improves the functional specialization and structural reliability of each component, but also allows for more targeted partial disassembly and assembly when the cleaning arm 212 or the cover 2112 needs maintenance, without disturbing the entire chassis structure, significantly improving the maintainability and service life of the module.

[0048] In some embodiments, the top end of the cover portion 2112 is provided with a transmission structure 21121, which is adapted to be detachably connected to the mop portion of the sweeping robot, so that the cover portion 2112 can be driven to rotate by the mop portion.

[0049] By setting a transmission structure 21121 at the top of the cover 2112 that matches the mop part of the sweeping robot, the reuse and transmission of the power source are realized. When the sweeping robot returns to the base station and executes the mop cleaning program, its rotating mop part can directly engage or rub against the transmission structure 21121, thereby seamlessly transmitting the robot's power to the cover 2112, driving it to rotate together with the cleaning arm 212. This design eliminates the need to set up a separate drive motor, reduction gears, and other complex power systems for the cleaning device 10, significantly simplifying the internal structure of the base station and reducing manufacturing costs and energy consumption. The separable transmission connection ensures that the power transmission is only effective when the robot is parked and aligned, while remaining separated at other times, avoiding interference with the robot's normal movement. The entire power transmission process is direct and efficient, making full use of the robot's existing driving capabilities, enabling the base station's self-cleaning function to operate reliably without adding any additional active components, demonstrating a high degree of system integration and design economy.

[0050] In some embodiments, a bearing 2113 is provided between the cover portion 2112 and the connecting portion 2111. The bearing 2113 optimizes the mechanical properties of their relative rotational motion. The bearing 2113 transforms the sliding friction between the cover portion 2112 and the connecting portion 2111 into rolling friction, significantly reducing rotational resistance. This allows the wiping cloth or other drive source to efficiently drive the cover portion 2112 and the cleaning arm 212 to rotate smoothly with less driving torque, improving energy transfer efficiency. This structure ensures high stability and low wobbling in rotational motion, making the trajectory of the cleaning arm 212 more stable during scraping, thus ensuring uniform scraping force. Simultaneously, the bearing 2113 effectively distributes the radial and axial loads acting on the rotating pair, reducing direct wear on the contact surfaces of the cover portion 2112 and the connecting portion 2111. This not only reduces operating noise and heat generation but also greatly extends the service life and reliability of the overall structure of the rotating shaft portion 211. This design improves the precision and durability of the rotary support by introducing standardized bearing 2113 components, enabling the cleaning device 10 to adapt to long-term, frequent cleaning operations.

[0051] In some embodiments, the cleaning assembly 200 further includes a second cleaning module 230 fixed on the cleaning chassis 100. The second cleaning module 230 is used to clean the wiping cloth portion and is provided with a through groove 231. At least a portion of the cover portion 2112 extends into the through groove 231 and is rotatably engaged with the through groove 231. The transmission structure 21121 is configured to be detachably connected to the wiping cloth portion via the through groove 231.

[0052] By incorporating a second cleaning module 230 with a through slot 231, and allowing the cover portion 2112 to pass through this slot 231 and connect with the wiping cloth portion via a transmission mechanism, efficient integration of structural space and reliable functional synergy are achieved. While the second cleaning module 230 undertakes the primary cleaning function for the robot's wiping cloth portion, its through slot 231 provides a precise installation channel and rotation space for the rotating shaft portion 211 of the first cleaning module 210, allowing the two cleaning modules to be compactly stacked in vertical space, greatly optimizing the internal layout of the base station. The cover portion 2112 extends through the through slot 231, ensuring that its top transmission structure 21121 is precisely exposed on the movement path of the wiping cloth portion, guaranteeing the accessibility and accuracy of power transmission. This structural design eliminates the need for an additional dedicated mounting bracket for the first cleaning module 210, allowing it to directly rely on the existing structure of the second cleaning module 230, saving materials and space, and simplifying the overall assembly process. Meanwhile, the through groove 231 plays an auxiliary positioning and constraint role in the rotational engagement of the cover part 2112, enhancing the stability of rotation and preventing radial movement, thereby ensuring the smoothness and reliability of the transmission connection process, and realizing the orderly, efficient integration and collaborative work of multiple cleaning functional units in a limited space.

[0053] The present invention also provides a base station, including a base station body and a cleaning component 200 of any of the foregoing embodiments. The base station body is provided with a docking position for a sweeping robot to dock, and the cleaning component 200 is disposed at the docking position.

[0054] This utility model also provides a cleaning system, including: a sweeping robot, and a base station of any of the foregoing embodiments, wherein the sweeping robot is adapted to dock or drive out of the docking position of the base station.

[0055] 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.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cleaning device, suitable for a base station in a cleaning system, characterized in that, include: The cleaning chassis has a sloping bottom surface for guiding the flow of waste liquid; A cleaning assembly includes a first cleaning module and a clamping structure. The first cleaning module is configured to move along the inclined bottom surface to scrape the inclined bottom surface. The clamping structure is configured to act on the first cleaning module to apply pressure toward the inclined bottom surface, so that the first cleaning module remains in contact with the inclined bottom surface during movement.

2. The cleaning device according to claim 1, characterized in that, The first cleaning module includes: A rotating shaft is disposed on the cleaning chassis and is rotatable relative to the cleaning chassis; At least one cleaning arm is connected to the rotating shaft and is capable of deflecting relative to the rotating shaft; wherein the clamping structure is disposed on the rotating shaft and applies pressure to the cleaning arm, causing the cleaning arm to tend to deflect toward the inclined bottom surface.

3. The cleaning device according to claim 2, characterized in that, The clamping structure includes an elastic element.

4. The cleaning device according to claim 3, characterized in that, The rotating shaft and the cleaning arm are hinged together by a hinge shaft. The elastic element includes a torsion spring, which is sleeved on the hinge shaft and has two arms that abut against the rotating shaft and the cleaning arm.

5. The cleaning device according to any one of claims 2 to 4, characterized in that, The rotating shaft includes: The connecting part is detachably connected to the cleaning chassis; The cover is rotatably mounted on the connecting part, and the cleaning arm is connected to the cover.

6. The cleaning device according to claim 5, characterized in that, The top of the cover is provided with a transmission structure, which is adapted to be detachably connected to the mop part of the sweeping robot, so that the cover can be driven to rotate by the mop part.

7. The cleaning device according to claim 6, characterized in that, A bearing is provided between the cover portion and the connecting portion.

8. The cleaning device according to claim 6, characterized in that, The cleaning assembly further includes a second cleaning module fixed to the cleaning chassis. The second cleaning module is used to clean the rag part and is provided with a through groove. At least a portion of the cover part extends into the through groove and rotates with the through groove. The transmission structure is configured to be detachably connected to the rag part via the through groove.

9. A base station, characterized in that, include: The base station body is equipped with a docking station for the sweeping robot to dock; The cleaning device as described in any one of claims 1 to 8, wherein the cleaning device is located at the parking position.

10. A cleaning system, characterized in that, include: Robot vacuum cleaner; The base station as described in claim 9, wherein the sweeping robot is adapted to dock at or drive out of the docking position of the base station.

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