DE212023000435U1 - Washing disc, base station and cleaning robot system - Google Patents

Abstract

Washing disc applicable to a base station for washing a self-propelled cleaning device, the washing disc comprising:
a cleaning cavity and a washing section arranged within the cleaning cavity, wherein the washing section is configured to interact with a cleaning element of the self-propelled cleaning device to remove contamination from the cleaning element, wherein the cleaning cavity is configured to contain the contamination,
the washing disc is detachably connected to the base station.

Description

The present disclosure claims priority from Chinese patent application no. 202320564399.0 , filed on March 21, 2023, which is incorporated herein by reference in its entirety as part of the present disclosure.

TECHNICAL AREA

The present disclosure relates to the technical field of smart homes and in particular to a washing disc, a base station and a cleaning robot system.

TECHNICAL BACKGROUND

With continuous technological iteration and development, self-propelled cleaning devices have entered the everyday lives of ordinary families and gradually become widespread. Among current self-propelled cleaning devices, mop machines and integrated sweepers/mop machines are highly favored due to their mopping functionality. Furthermore, such a self-propelled cleaning device can be docked to its base station for a predetermined period after completing a sweeping or cleaning task, allowing the cleaning elements to be washed.

BRIEF SUMMARY OF THE INVENTION

A number of simplified concepts have been introduced in the abstract of the present application, which are explained in more detail in the detailed description.

This part of the present disclosure is not intended to define key features and necessary technical features of the claimed technical solutions, let alone to determine the scope of protection of the claimed technical solutions.

In a first aspect of the present disclosure, an embodiment provides a washing disc applicable to a base station for washing a self-propelled cleaning device. The washing disc comprises: a cleaning cavity and a washing section arranged within the cleaning cavity, the washing section being configured to interact with a cleaning element of the self-propelled cleaning device to remove contamination from the cleaning element, the cleaning cavity being configured to contain the contamination, and the washing disc being detachably connected to the base station.

Furthermore, the base station includes a receiving cavity for receiving the self-propelled cleaning device, a mounting groove is formed in a bottom wall of the receiving cavity, a shape of an outer edge of the washing disc corresponds to a shape of the mounting groove, and the washing disc can be confined within the mounting groove to limit the movement of the washing disc relative to the base station in a horizontal direction.

Furthermore, a wastewater sump is arranged within the cleaning cavity, and a section of a wastewater pipe, which is located at the base station, extends to the wastewater sump.

Furthermore, a notch is formed in a side wall of the cleaning cavity, and the wastewater pipe runs through the notch and is attached to the washing disc.

Furthermore, the washing section is arranged on a bottom wall of the cleaning cavity and projects from a surface of the bottom wall of the cleaning cavity; the washing section comprises a connecting end and a free end, the connecting end is connected to a side wall of the cleaning cavity, and a first washing projection is arranged on a top side of the washing section; and the number of washing sections is at least two.

Furthermore, the washing disc also comprises: a water guide section, wherein the water guide section is arranged on the bottom wall of the cleaning cavity and projects from a surface of the cleaning cavity, a water guide groove is formed in a top surface of the water guide section, the water guide groove is connected to a water outlet at the base station, the water guide groove is configured to contain a cleaning fluid and is able to interact with the cleaning element, wherein the number of water guide sections is at least two.

Furthermore, the water flow sections and the washing sections are spaced apart from each other, a first end of the water flow section is connected to the side wall of the cleaning cavity, a water collection zone is formed between two adjacent washing sections and water flow sections, the wastewater sump is located within one of the water collection zones, a wastewater discharge channel is formed in the bottom wall of the cleaning cavity, and the wastewater sump is connected to each of the water collection zones. zones connected by the sewage drainage channel.

Furthermore, the bottom wall of the cleaning cavity, which is located within the water collection zone, is provided as a guide surface, and the guide surface is an inclined plane or an inclined curved surface.

Furthermore, a liquid drain opening is formed in conjunction with the water guide groove in the water guide section, and the liquid drain passage is connected to a groove base of the water guide groove; and a second washing projection is also arranged within the water guide groove.

Furthermore, the washing section comprises a first washing section, a scraper is arranged on a top side of the first washing section in a direction from the connecting end to the free end; and the first washing projections are located on the same side of the scraper.

Furthermore, each washing section also includes a second washing section, wherein the second washing section is located between the two first washing sections, and wherein the scraper is located on one side of the first washing section away from the second washing section.

Furthermore, the second washing section comprises a main branch connected to the side wall of the cleaning cavity, and two secondary branches connected to the main branch, and a first opening in connection with the wastewater discharge channel is formed between an end section of each secondary branch located away from the main branch and the free end of the adjacent first washing section.

Furthermore, the two water conveyance sections are distributed between the two first washing sections and are located on the sides of the first washing sections away from the second washing section, and a second opening in connection with the wastewater discharge channel is formed between a second end of each water conveyance section and the free end of the adjacent first washing section; and the wastewater sump is located between the two water conveyance sections.

Furthermore, the washing disc also includes a filter device which is arranged within the wastewater sump and is located on a peripheral side of the wastewater pipe.

Furthermore, the washing disc further comprises: a liquid level detection device arranged within the wastewater sump and configured to detect a liquid level within the wastewater sump, wherein the liquid level detection device comprises a float assembly arranged on the filter assembly, and the float assembly comprises a float body which floats on a surface of a liquid under the action of the liquid; and one of a non-contact detection element and a non-contact detected element is arranged on the float body, the other of the non-contact detection element and the non-contact detected element is arranged at the base station, and the non-contact detection element is capable of detecting the non-contact detected element when the filter assembly is arranged within the wastewater sump and the surface of the liquid within the wastewater sump is within a specific range.

In a second aspect of the present revelation, a base station is provided that includes any washing disc, as described in the first aspect.

In a third aspect of the present disclosure, a cleaning robot system is provided, comprising a self-driving cleaning device and the base station, as described in the second aspect.

The above descriptions are merely an overview of the technical solutions of the present disclosure that can be implemented according to the content of the description in order to better understand the technical means of the present disclosure. In addition, to make the above and other objectives, features, and advantages of the present disclosure more apparent and understandable, specific embodiments of the present disclosure are listed below.

BRIEF DESCRIPTION OF THE DRAWINGS

• 1 ein schematisches Strukturdiagramm einer selbstfahrenden Reinigungsvorrichtung gemäß einer optionalen Ausführungsform der vorliegenden Offenbarung;
• 2 ein schematisches Strukturdiagramm der in 1 gezeigten Ausführungsform aus einer Perspektive;
• 3 ein schematisches Strukturdiagramm einer Basisstation gemäß einer optionalen Ausführungsform der vorliegenden Offenbarung;
• 4 ein teilweises schematisches Strukturdiagramm der in 3 gezeigten Ausführungsform aus einer Perspektive;
• 5 ein schematisches Strukturdiagramm einer Waschscheibe gemäß einer optionalen Ausführungsform der vorliegenden Offenbarung;
• 6 ein schematisches Strukturdiagramm der in 5 gezeigten Ausführungsform aus einer Perspektive;
• 7 ein schematisches Strukturdiagramm einer Waschscheibe gemäß einer optionalen Ausführungsform der vorliegenden Offenbarung; und
• 8 ein schematisches Strukturdiagramm der in 7 gezeigten Ausführungsform aus einer Perspektive.

The following accompanying drawings to the present disclosure are presented herein as part of embodiments of the present disclosure for the purpose of understanding the present disclosure. The embodiments of the present disclosure and their descriptions are shown in the accompanying drawings to illustrate the principles of the present disclosure. The drawings include:

• 1 a schematic structural diagram of a self-propelled cleaning device according to an optional embodiment of the present disclosure;
• 2 a schematic structure diagram of the in 1 embodiment shown from one perspective;
• 3 a schematic structure diagram of a base station according to an optional embodiment of the present disclosure;
• 4 a partial schematic structural diagram of the in 3 embodiment shown from one perspective;
• 5 a schematic structural diagram of a washing disc according to an optional embodiment of the present disclosure;
• 6 a schematic structure diagram of the in 5 embodiment shown from one perspective;
• 7 a schematic structural diagram of a washing disc according to an optional embodiment of the present disclosure; and
• 8 a schematic structure diagram of the in 7 The embodiment shown is from one perspective.

Description of the reference symbols:

100 self-propelled cleaning device, 110 main machine body, 111 front section, 112 rear section, 120 perception system, 121 determination device, 122 shock absorber, 140 drive system, 141 drive wheel module, 142 driven wheel, 150 cleaning system, 151 dry cleaning system, 152 side brush, 170 human-machine interaction system, 183 cleaning element; 200 Base station, 211 Receiving cavity, 2111 Mounting groove, 2112 Water outlet, 2113 Charging contact pole piece, 2114 Water refill connector, 213 Clean water tank, 214 Waste water tank, 220 Wash disc, 2211 Cleaning cavity, 2212 Waste water sump, 2213 Notch, 2214 Water collection zone, 2215 Guide surface, 2216 Waste water drain channel, 222 Wash section, 2221 First wash section, 2222 Second wash section, 2223 First wash projection, 2224 Wiper, 2225 Main branch, 2226 Second branch, 2227 Connection end, 2228 Free end, 223 Waste water pipe, 224 Water guide section, 2241 Water guide groove, 2242 Liquid drain passage 2243 second washing protrusion, 225 filter device and 226 liquid level detection device.

DETAILED DESCRIPTION

The following descriptions provide a large number of specific details to facilitate a more thorough understanding of the technical solutions provided by this disclosure. However, it is evident to the person skilled in the art that the technical solutions according to this disclosure can be implemented without one or more of these details.

It should be noted that the terms used herein are intended only to describe specific embodiments, rather than to limit exemplary embodiments as defined in the present disclosure. The singular forms used herein are also intended to include the plural forms unless otherwise clearly indicated in the context. Furthermore, it is understood that, when used in the description, the terms "comprehensive" and/or "inclusive" indicate the presence of the features, components, steps, processes, elements, and/or assemblies under discussion, but do not exclude the presence or addition of one or more other features, components, steps, processes, elements, assemblies, and/or combinations thereof.

The exemplary embodiments according to the present disclosure will now be described in more detail with reference to the accompanying drawings.

These exemplary embodiments can, however, be implemented in various different forms and should not be interpreted as being limited to the embodiments set forth herein. It is understood that these embodiments are provided to make the disclosure of the present disclosure thorough and complete and to fully convey the concepts of these exemplary embodiments to the person skilled in the art.

As in the 1 to 8 As shown, embodiments of the present disclosure provide a washing disc 220, a base station 200, and a cleaning robot system. The cleaning robot system comprises a self-propelled cleaning device 100 and the base station 200; that is, the base station 200 and the self-propelled cleaning device 100 are used in cooperation. Furthermore, as shown in the 1 and 2 As shown, the self-propelled cleaning device 100 can comprise a machine body 110, a perception system 120, a control module, a drive system 140, a cleaning system 150, a power system, and a human-machine interaction system 170. It is understood that the self-propelled cleaning device 100 can be a self-cleaning device or other self-propelled cleaning devices 100 that meet the requirements. The self-propelled cleaning device 100 is a device that The self-propelled cleaning device 100 automatically performs a cleaning operation in a specific area to be cleaned, without any user intervention. When the self-propelled cleaning device 100 starts working, it begins performing a cleaning task from the base station 200. When the self-propelled cleaning device 100 completes the cleaning task or needs to stop the cleaning task, it can return to the base station 200 for operations such as recharging, refilling water, washing, and/or dust collection.

As in 1 As shown, the main machine body 110 comprises a front section 111 and a rear section 112, is approximately circular (being circular in both the front and the back) and may also be in other shapes, including, but not limited to, an approximately D-shape with a square front and a circular back, and a rectangular or square shape with a square front and a square back.

As in 1 As shown, the perception system 120 comprises a position determination device 121 located on the machine body 110, a collision sensor and a proximity sensor, both arranged on a shock absorber 122 of the front section 111 of the machine body 110, a cliff sensor arranged on a lower section of the machine body 110, and a magnetometer, an accelerometer, a gyroscope, an odograph, and other sensing devices arranged within the machine body 110 for providing various position and motion status information of a machine to the control module. The position determination device 121 includes, but is not limited to, a camera and a laser distance sensor (LDS).

As in 1 As shown, the front section 111 of the main machine body 110 can support the shock absorber 122. When a drive wheel module 141 propels the self-propelled cleaning device 100 to move along the floor during the cleaning process, the shock absorber 122 detects one or more events in the movement path of the self-propelled cleaning device 100 via a sensor system mounted on it, for example, an infrared sensor. Based on the events, such as an obstacle or a wall, detected by the shock absorber 122, the self-propelled cleaning device 100 can control the drive wheel module 141 to enable the self-propelled cleaning device 100 to react to the event, for example, by moving away from the obstacle.

The control module is located on a main circuit board within the machine body 110 and comprises a computer processor, such as a central processing unit and an application processor, communicating with non-volatile memory, such as a hard disk, flash memory, and random access memory. The application processor is configured to simultaneously draw a map of the environment in which the self-propelled cleaning device 100 is located, based on obstacle information returned by the laser distance sensor, using a positioning algorithm, for example, simultaneous localization and mapping (SLAM). Furthermore, by combining the distance and velocity information returned by the sensors, cliff sensor, magnetometer, accelerometer, gyroscope, odograph, and other detection devices arranged on the shock absorber 122, a comprehensive assessment of the current operating status and position of the self-propelled cleaning device 100, as well as its current attitude (such as crossing a threshold, moving onto a carpet, being on a cliff, stuck from above or below, having a full dustbin, picking up dust, etc.), can be made. Specific strategies for the next action are indicated for different situations, so that the operation of the self-propelled cleaning device 100 better meets the owner's requirements, thereby providing an improved user experience.

As in 2 As shown, the drive system 140 can manipulate the main machine body 110 to move across the floor based on a drive command with distance and angle information, such as components of x, y, and θ. The drive system 140 includes a drive wheel module 141, and the drive wheel module 141 can control both a left wheel and a right wheel simultaneously. To control the machine's movement more precisely, the drive wheel module 141 preferably includes a left drive wheel module and a right drive wheel module arranged along a transverse axis defined by the main machine body 110. To enable the self-propelled cleaning device 100 to To enable more stable movement or improved maneuverability on the ground, the self-propelled cleaning device 100 may include one or more driven wheels 142, and the driven wheels 142 may include, but are not limited to, universal wheels. The drive wheel module 141 comprises a moving wheel, a drive motor, and a control circuit for controlling the drive motor, and the drive wheel module 141 may also be connected to an odograph and a circuit for measuring a drive current. A drive wheel may be provided with an offset drop-suspension system that is movably attached, e.g., rotatably mounted to the main machine body 110, and accommodates a spring-loaded boom that is biased downwards and away from the main machine body 110. The spring-loaded boom enables the drive wheel to maintain contact and traction with the ground with a certain landing force, while cleaning elements 183 of the self-propelled cleaning device 100 are also in contact with the ground with a certain pressure.

The energy system includes a rechargeable battery, such as a nickel-metal hydride or lithium battery. The rechargeable battery can be connected to a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit, which are then connected to a single-chip microcomputer control circuit. A main unit is connected to the base station 200 via a charging electrode located on one side or underneath the machine body for charging.

The human-machine interaction system 170 includes buttons on a panel of the main unit to allow a user to select functions, and may also include a screen and/or an indicator light and/or a horn. The screen, indicator light, or horn displays to the user the current status or operating options of the self-propelled cleaning device. The human-machine interaction system may also include a mobile phone client program. For a route-navigation-type self-propelled cleaning device 100, a mobile phone client can display a map of the environment in which the device is located, as well as the device's position, thus providing the user with richer and more user-friendly operating elements.

The cleaning system 150 includes a wet cleaning system, i.e. the self-propelled cleaning device 100 can be a mop machine, or the cleaning system 150 includes a wet cleaning system and a dry cleaning system 151, i.e. the self-propelled cleaning device 100 can be an integrated sweeper and mop machine.

As in 2 As shown, the dry cleaning system 151, according to the embodiment of the present disclosure, can comprise a roller brush, a dust box, a blower, and an air outlet. The roller brush, which interacts with the floor, sweeps up dirt on the floor and rolls the dirt to the front of a suction opening located between the roller brush and the dust box. The dirt is then drawn into the dust box by an airflow with suction generated by the blower and passing through the dust box. The dry cleaning system 151 can further comprise a side brush 152 with a rotating shaft, the rotating shaft being angled relative to the floor to move particles into a roller brush area of the cleaning system 150.

The wet cleaning system can comprise a cleaning arrangement, a water supply mechanism, a liquid storage tank, and the like. The cleaning arrangement can be located below the liquid storage tank, and cleaning fluid is transferred from within the liquid storage tank to the cleaning arrangement via the water supply mechanism, enabling the cleaning arrangement to perform wet cleaning on a surface to be cleaned. In other embodiments of the present disclosure, the cleaning fluid can also be sprayed directly onto the surface to be cleaned from within the liquid storage tank, and the cleaning arrangement distributes the cleaning fluid evenly, thereby cleaning the surface. It is understood that the self-propelled cleaning device 100 is provided with a water filling port in conjunction with the liquid storage tank, and the liquid storage tank can be refilled with a liquid from outside the self-propelled cleaning device 100 via the water filling port to implement a refilling process at the liquid storage tank with water.

According to one embodiment of the present disclosure, the cleaning arrangement comprises a movement mechanism (not shown) and a cleaning element 183, which are arranged on the main machine body 110. That is, the entire cleaning arrangement can be mounted on the main machine body 110 by means of the movement mechanism, and the cleaning arrangement moves with the movement of the main machine body 110 to achieve a mopping function. The movement mechanism is The movement mechanism can be configured to drive the cleaning element 183, causing it to move. It can be configured to raise and lower the cleaning element 183, and it can also be configured to rotate the cleaning element 183. Therefore, depending on whether the cleaning element 183 is in contact with a surface to be cleaned, the movement mechanism can achieve raising, lowering, and rotating operations of the cleaning element 183 to meet various functional requirements. This allows for the implementation of differentiated strategies for the cleaning element 183, thus improving the cleaning performance of the self-cleaning device, its cleaning efficiency, and the user experience.

The cleaning element 183 can be located in a feed direction of the self-propelled cleaning device 100 at the rear of the dry cleaning system 151, and the cleaning element 183 can typically be a water-absorbing flexible substance, such as a fabric or sponge. In this solution, the cleaning element 183 can be at least one rotating turntable, and water in a liquid storage tank of a self-propelled robot is directed to the cleaning element 183, and the wetted cleaning element 183 removes stains from the floor by means of a rotating motion.

When the self-propelled cleaning device 100 is in motion, the movement mechanism can be controlled in certain scenarios where mopping is unnecessary, such as when moving to and from the base station 200 or cleaning a carpet, by using the control module to drive the cleaning element 183 so that it is raised. Raising the cleaning element 183 means that its lower surface is higher than the lower surface of the drive wheel, so that in such a case, the cleaning element 183 is not in contact with the surface being cleaned while the self-propelled cleaning device 100 is moving, driven by the drive wheel. Therefore, it avoids secondary contamination on the surface to be cleaned caused by contact between the cleaning element 183 and the surface to be cleaned in the scenario where mopping is unnecessary, which is conducive to improving the cleaning performance of the self-propelled cleaning device 100 and improving cleaning efficiency and user experience.

When the self-propelled cleaning device 100 is in motion, the movement mechanism can be controlled in certain scenarios where mopping is required, such as wet cleaning of the floor. This can be achieved by using the control module to drive the cleaning element 183 so that it is lowered, allowing its lowermost surface to interact with and be in contact with the surface to be cleaned. Additionally, the movement mechanism can be controlled by using the control module to drive the cleaning element 183 so that it rotates. This allows the cleaning element 183 to interact with and be in contact with the surface to be cleaned during the movement of the self-propelled cleaning device 100, which is driven by the drive wheel, thus implementing a mopping operation on the surface.

As in the 3 and 4 As shown, the base station 200 according to the present disclosure includes a washing disc 220. The washing disc 220 is configured to clean the cleaning element 183 of the self-propelled cleaning device 100. Therefore, after the self-propelled cleaning device 100 has completed a mopping operation using the cleaning element 183, it can be docked to the base station 200, and a cleaning operation can be performed on the soiled cleaning element 183 using the washing disc 220.

As in the 5 , 6 and 7 As shown, in some possible embodiments according to the present disclosure, the washing disc 220 is detachably connected to the base station 200, so that the washing disc 220 as a whole can be removed from the base station 200 for washing, which improves the thoroughness of the washing process. This avoids potential odor formation caused by dirt remaining on the washing disc 220 for extended periods, which can result from incomplete or inconvenient washing of the washing disc 220. This improves the washing experience and enhances user satisfaction. Additionally, the detachable connection of the washing disc 220 to the base station 200 improves maintenance efficiency.

As in the 5 , 6 , 7 and 8 As shown, the washing disc 220 comprises a cleaning cavity 2211 and a washing section 222 located within the cleaning cavity 2211. The washing section 222 is configured to interact with the cleaning element 183 of the self-propelled cleaning device 100 to remove contamination from the cleaning element 183, thereby implementing a cleaning operation on the cleaning element 183. For example, if the cleaning element 183 is a mop disc, a washing operation on the mop disc is implemented through interaction between the mop disc and the washing section 222 within the cleaning cavity 2211. Since the cleaning cavity 2211 is configured to contain the contamination, the washing section 222 can remove the contamination from the cleaning element 183, and the contamination is collected within the cleaning cavity 2211.

By configuring the washing disc 220 so that it is detachably connected to the base station 200, the washing disc 220 can be attached to the base station 200 as a whole, allowing the user to attach or detach the washing disc 220 from the base station 200 as needed. For example, the user can detach the entire washing disc 220 from the base station 200, which simplifies washing and improves convenience. Furthermore, this can improve the thoroughness of the washing process and prevent dirt from accumulating or remaining in the cleaning cavity 2211 for extended periods, thus preventing unpleasant odors and ultimately improving user satisfaction.

However, since the soiling generated after washing can accumulate in a state-of-the-art base station within the wastewater sump and then be discharged, even after the soiling is removed from the sump, flow marks and residues of the soiling can still remain there, producing an unpleasant odor over time. Furthermore, because the wastewater sump is located at the base station, it is inconvenient to clean, resulting in a lingering odor that negatively impacts the user experience.

In the present disclosure, however, the entire washing disc 220 can be washed, since the entire washing disc 220 can be removed from the base station 200. Therefore, the washing section 222 and the cleaning cavity 2211 are relatively clean, and the thoroughness of cleaning the washing disc 220 is greatly improved. This further prevents unpleasant odors caused by contamination that accumulates or remains within the cleaning cavity 2211 for extended periods, thus improving the user experience. Additionally, in the washing process of the cleaning element 183 by the washing disc 220 according to the present disclosure, no contamination is left behind on the base station 200, ensuring the cleanability of the base station 200. Therefore, any potential unpleasant odor generated in the base station by contamination remaining there for a long time is avoided.

It is understood that if it is necessary to wash the cleaning element 183 of the self-propelled cleaning device 100, the washing disc 220 simply needs to be mounted on the base station 200.

Furthermore, the detachable connection between the washing disc 220 and the base station 200 can be achieved by means of a snap-fit structure, a limiting structure, a threaded structure, a tenon structure, a magnetic attraction structure, and the like. The washing section 222 can be connected to the interior of the cleaning cavity 2211 of the washing disc 220 by means of an adhesive bond, welding, or other structures, or the washing section 222 can be integrally formed with a cavity wall of the cleaning cavity 2211. For example, the washing section 222 can be integrally formed with the washing disc 220. The contamination removed by the cleaning element 183 through the washing section 222 can include dirty liquid, hair, solid residues, and the like.

In some possible embodiments according to the present disclosure, the base station 200 comprises a receiving cavity 211 for receiving the self-propelled cleaning device 100. When the cleaning element 183 of the self-propelled cleaning device 100 is soiled and needs to be washed, at least a part of the self-propelled cleaning device 100 can be docked within the receiving cavity 211 of the base station 200, and the cleaning operation is carried out on the cleaning element. ment 183 by using the washing disc 220.

The washing disc 220 is mounted on a bottom wall of the receiving cavity 211, so that the washing disc 220 can perform the cleaning operation on the cleaning element 183 on the bottom of the machine main body 110 when the self-propelled cleaning device 100 is received inside the receiving cavity 211 of the base station 200.

This is how it is, as in 5 As shown, a mounting groove 2111 is formed in the bottom wall of the receiving cavity 211. The shape of an outer edge of the washing disc 220 corresponds to a shape of the mounting groove 2111, and the washing disc 220 can be confined within the mounting groove 2111 such that the movement of the washing disc 220 relative to the base station 200 is limited in a horizontal direction. Therefore, by reasonably adjusting the shape of the mounting groove 2111 and the shape of the outer edge of the washing disc 220, the washing disc 220 can be positioned within the mounting groove 2111. For example, the entire washing disc 200 and the base station 200 can be mounted when the washing disc 220 is inserted into the mounting groove 2111 from above. The entire washer disc 220 and the base station 200 can be disassembled by removing the washer disc 220 from the top of the mounting groove 2111, making it easy and convenient to use. Furthermore, this simplifies the arrangement of structures connecting the washer disc 220 to the base station 200, such as snap-fit, limit-fit, threaded, tenon, and magnetic connections, thus facilitating cost reduction.

As in 5 and 6 As shown, in some possible embodiments according to the present disclosure, a wastewater sump 2212, located within the cleaning cavity 2211, is arranged on the bottom wall of the cleaning cavity 2211, and the bottom of the wastewater sump 2212 can be lower than the upper surface of the bottom wall of the cleaning cavity 2211, so that the contamination can accumulate within the wastewater sump 2212 under the action of gravity after the washing section 222 removes the contamination from the cleaning element 183. The base station 200 further comprises a wastewater pipe 223, one end of which extends into the wastewater sump 2212. Specifically, one end of the wastewater pipe 223 communicates with the wastewater sump 2212, and a second end of the wastewater pipe 223 extends to the outside of the cleaning cavity 2211. In this way, the contamination within the wastewater sump 2212 can be discharged using the wastewater pipe 223, and the contamination within the cleaning cavity 2211 can also be discharged in a timely manner, so that the cleaning cavity 2211 can continue to contain the contamination, thus ensuring continuous washing of the cleaning element 183 and improving the washing effect. Additionally, it is possible to avoid secondary contamination caused by the overflow of debris within the cleaning cavity 2211, which is not drained away in a timely manner, thus improving user satisfaction. In the embodiments of the present disclosure, the drain pipe 223 can be made of an elastic material to facilitate the disassembly of the washing disc 220.

As in 7 As shown, in the embodiment above, a notch 2213 is formed in a side wall of the cleaning cavity 2211. That is, the notch 2213 is formed in the washing disc 220, and the wastewater pipe 223 is attached to the washing disc 220 through the notch 2213 and extends into the wastewater sump 2212. The base station 200 includes a wastewater tank 214, and the second end of the wastewater pipe 223 communicates with the wastewater tank 214, allowing contamination to be collected within the wastewater tank 214. It is understood that a water pump can be arranged on a channel element through which the wastewater pipe 223 communicates with the wastewater tank 214 to achieve wastewater collection.

As in 3 As shown, the wastewater tank 214 of the base station 200 can be arranged above the receiving cavity 211. It is advantageous to provide communication between the wastewater pipe 223 and the wastewater tank 214 using the second end of the wastewater pipe 223. The wastewater sump 2212 then communicates with the wastewater tank 214, located above the receiving cavity 211, via the wastewater pipe 223. Therefore, the wastewater within the cleaning cavity 2211 of the washing disc 220 can be collected in the wastewater tank 214 in a timely manner. It is understood that in other possible embodiments, the second end of the wastewater pipe 223 can also extend to the outside of the base station 200, so that it is in direct communication with a wastewater discharge pipe. In particular, the wastewater pipe 223 is provided as a curved structure, with one section being... connected to the second end of the sewage pipe 223, is bent upwards to allow reliable communication between the sewage pipe 223 and the sewage tank 214.

As in the 7 and 8 As shown, in some possible embodiments according to the present disclosure, the washing section 222 is arranged on the bottom wall of the cleaning cavity 2211 and projects from a surface of the cleaning cavity 2211. The washing section 222 comprises a connecting end 2227 and a free end 2228, and the connecting end 2227 is connected to the side wall of the cleaning cavity 2211. That is, the washing section 222 can be understood as a cleaning rib. First washing projections 2223 are arranged on the top of the washing section 222 so that the contamination can be removed by the cleaning element 183 by utilizing the interaction between the first washing projections 2223 on the top of the washing section 222 and the cleaning element 183 of the self-propelled cleaning device 10.

Since the connecting end 2227 of the washing section 222 is connected to the side wall of the cleaning cavity 2211, and the free end 2228 of the washing section 222 extends towards the inside of the cleaning cavity 2211, the washing section 222 also plays an excellent guiding role, and the contamination can be guided into the wastewater sump 2212 by using the washing section 222. This, in turn, improves the wastewater drainage efficiency of the washing disc 220 and the cleaning efficiency of the washing disc 220. The washing section 222 projects from a surface of the cleaning cavity 2211, so that the first washing projections 2223 on the washing section 222 can reliably interact with the cleaning element 183, thus ensuring an excellent cleaning effect.

There are at least two washing sections 222. For example, there are two, three, four or more washing sections 222. By reasonably determining the number of washing sections 222, it is possible to ensure sufficient contact areas between the first washing projections 2223 of the washing sections 222 and the cleaning element 183, thus ensuring an excellent cleaning effect.

Additionally, it is possible to ensure that there is sufficient space within the cleaning cavity 2211 so that the contamination flows gently to the wastewater sump 2212 to ensure excellent cleaning efficiency.

It is understood that in the process of washing the cleaning element 183, the cleaning element 183 interacts with the first washing projections 2223. Additionally, the movement mechanism of the self-propelled cleaning device 100 drives the cleaning element 183 to rotate, enabling the entire cleaning element 183 to perform a rotary motion and thus interact circularly with the first washing projections 2223, which in turn carry out the cleaning operation for the cleaning element 183.

As in the 7 and 8 As shown, in some possible embodiments according to the present disclosure, the washing disc 220 further comprises a water guide section 224. The water guide section 224 is arranged on the inner bottom wall of the cleaning cavity 2211 and projects from the surface of the cleaning cavity 2211; that is, the water guide section 224 can be understood as a water guide rib. A water guide groove 2241 is formed in the top surface of the water guide section 224. The water guide groove 2241 communicates with water outlets 2112 in the base station 200. The water guide groove 2241 is configured to contain a cleaning fluid and can interact with the cleaning element 183. Therefore, the cleaning fluid flows from the water outlets 2112 of the base station 200 into the water guide groove 2241. When the cleaning element 183 interacts with the water guide groove 2241, the cleaning element 183 itself can be wetted by the cleaning fluid in the water guide groove 2241, and then the cleaning element 183 interacts with the washing section 222 to achieve cleaning of the cleaning element 183. This arrangement improves the cleaning effect on the cleaning element 183. The water guide section 224 projects from the surface of the cleaning cavity 2211, so that the water guide groove 2241 on the water guide section 224 can reliably interact with the cleaning element 183 to ensure that the cleaning element 183 can gently immerse itself in the water in the water guide groove 2241.

There are at least two water guide sections 224; for example, there may be two, three, four, or more water guide sections 224. By reasonably determining the number of water guide sections 224, it can be ensured that the cleaning element 183 is guided by the cleaning fluid within the water guide groove. 2241 of the water flow section 224 is wetted more evenly and comprehensively.

It is understood that in the washing process of the cleaning element 183, the cleaning element 183 interacts with the water guide groove 2241 of the water guide section 224. Additionally, the movement mechanism of the self-propelled cleaning device 100 drives the cleaning element 183 to rotate, enabling the entire cleaning element 183 to perform a rotary motion and thus interact circularly with the water guide groove 2241. This, in turn, allows the cleaning element 183 to be evenly wetted. The wetted cleaning element 183 then interacts with the washing section 222 to enhance the washing effect.

As in the 3 and 4 As shown, the base station 200 includes a clean water tank 213. The clean water tank 213 is arranged above the receiving cavity 211 and configured to receive the cleaning fluid. The water outlets 2112 are connected to the clean water tank 213, and the cleaning fluid in the clean water tank 213 can be introduced into the water guide groove 2241 through the water outlets 2112. The water outlets 2112 can be arranged on the top of the receiving cavity 211 and face directly towards the water guide grooves 2241 of the water guide sections 224. In this way, by controlling the opening and closing of the water outlets 2112 via a valve and other components, the cleaning fluid in the clean water tank 213 can be introduced into the water guide grooves 2241 under the influence of gravity. It is understood that the water outlet 2112 can also be arranged on a side wall of the receiving cavity, and the cleaning fluid in the clean water tank can flow into the water guide groove 2241 by enabling communication between the water outlets 2112 and the water guide grooves 2241 via a channel element.

In the above-mentioned embodiments, as in the 5 and 6 As shown, the water conveying sections 224 and the washing sections 222 are spaced apart from each other. A water collection zone 2214 is formed between two adjacent washing sections 222 and water conveying sections 224; that is, the water collection zone 2214 can be formed between two adjacent washing sections 222, or the water collection zone 2214 can be formed between two adjacent water conveying sections 224, or the water collection zone 2214 can be formed between a washing section 222 and a water conveying section 224 that are adjacent to each other. The wastewater sump 2212 is located within a water collection zone 2214. The wastewater outlet channel 2216 is arranged on the bottom wall of the cleaning cavity 2211. The wastewater sump 2212 is connected to each water collection zone 2214 via the wastewater outlet channel 2216, which in turn can direct wastewater from each water collection zone 2214 into the wastewater sump 2212 using a guiding function of the wastewater outlet channel 2216. In this way, the speed and thoroughness of wastewater collection by the washing disc 220 can be improved, thus facilitating an improvement in the wastewater discharge efficiency of the washing disc 220, which in turn improves the washing efficiency.

As in 7 As shown, in the embodiment described above, the bottom wall of the cleaning cavity 2211, located within the water collection zone 2214, is provided as a guide surface 2215, and the guide surface 2215 is an inclined plane or an inclined curved surface. In this way, under the guidance of the guide surface 2215, the contamination in each water collection zone 2214 can be guided more quickly and thoroughly into the wastewater sump 2212, thereby improving the wastewater discharge efficiency and the wastewater discharge effect of the washing disc 220 and further improving the washing efficiency.

Furthermore, the guide surface 2215 can be an inclined plane or an inclined curved surface. The inclination angle of the guide surface 2215 can be greater than 0° and less than or equal to 30°. For example, the inclination angle of the guide surface 2215 can be 5°, 10°, 20°, 30°, or the like. In particular, the inclination angle of the guide surface 2215 can be greater than or equal to 8°. For example, the guide surface 2215 within each water collection zone 2214 can consist of a conical surface with an angle of not less than 8°.

As in 8 As shown, in some possible embodiments according to the present disclosure, the water guide section 224 is provided with a liquid drain passage 2242 in conjunction with the water guide groove 2241. Since the cleaning fluid in the water guide groove 2241 cannot be completely immersed by the cleaning element 183 of the self-propelled cleaning device 100 after the cleaning fluid enters the water guide groove 2241 of the water guide section 224, a situation may arise in which the cleaning fluid remains in the water guide groove 2241. By forming the liquid drain opening 2242 in conjunction with the water guide groove 2241 in the water guide, In the cleaning section 224, the cleaning fluid remaining in the water guide groove 2241 can be drained from the fluid drain passage 2242. This prevents the fluid from remaining in the water guide groove 2241 for an extended period, thus avoiding unpleasant odors and facilitating the cleaning of the water guide groove 2241. It is understood that the water guide section 224 and the washing section 222 can also be washed during the process of removing the washing disc 220 from the base station 200.

The liquid drain passage 2242 is connected to a groove base of the water guide groove 2241, so that the residual liquid in the water guide groove 2241 can be drained relatively completely through the liquid drain passage 2242, which in turn can improve the thoroughness of draining the liquid from the water guide groove 2241.

Second washing protrusions are also arranged within the water guide groove 2241, so that when the cleaning element 183 interacts with the water guide groove 2241 to immerse itself in the cleaning fluid within the water guide groove 2241, the cleaning element 183 can interact simultaneously with the second washing protrusions 2243 for the washing operation, which in turn improves the washing efficiency and the washing effect.

It is understood that the second wash protrusions and the first wash protrusions 2223 may have the same or different shapes or sizes, the multiple second wash protrusions may have the same or different shapes or sizes, and the multiple first wash protrusions 2223 may have the same or different shapes or sizes.

As in 7 As shown, in some possible embodiments according to the present disclosure, the washing section 222 comprises a first washing section 2221, and a scraper 2224 is arranged on the top of the first washing section 2221 in a direction from the connecting end 2227 to the free end 2228. By providing the scraper 2224, the cleaning element 183 can scrape wastewater off the cleaning element 183 as it passes through the scraper 2224, which in turn improves the cleaning effect of the cleaning element 183.

The first washing projections 2223 are located on the same side of the wiper 2224, so that after the cleaning element 183 interacts with the wiper 2224 to perform the water wiping operation, it can then interact with and rub against the first washing projections 2223 to perform the washing operation; or after the cleaning element 183 interacts with and rubs against the first washing projections 2223 to perform the washing operation, it can then interact with the wiper 2224 to perform the water wiping operation. It is understood that, after the water wiping operation, the same position of the cleaning element 183 can interact with the water guide section 224 for an immersion in the cleaning fluid operation, or the same position of the cleaning element 183 can interact with the washing section 222 for the washing operation. It is understood that the contamination scraped off by the scraper 2224 flows under the influence of gravity into the cleaning cavity 2211, through the water collection zone 2214 and the wastewater discharge channel 2216 to the wastewater sump 2212 and is collected in the wastewater tank 214 via a wastewater discharge pipe.

As in 7 As shown, in some possible embodiments according to the present disclosure, the washing section 222 further comprises a second washing section 2222, wherein the second washing section 2222 is located between the two first washing sections 2221 and the wiper 2224 is located on one side of the first washing section 2221 away from the second washing section 2222. Since the first washing projections 2223 are arranged on the top side of the second washing section 2222, the second washing section 2222 is positioned between the two first washing sections 2221, so that the cleaning element 183, after being wiped by the wiper 2224 on a first washing section 2221, can rotate into a position to interact with the first washing projections 2223 on the second washing section 2222, thereby implementing a thorough cleaning operation. Then, after the cleaning element 183 has rotated into a position of another first washing section 2221, water and dirt on the cleaning element 183 are again scraped off by the wiper 2224 at the washing section 222, thus improving the washing action of the washing disc 220. It is understood that after water and dirt on this part of the cleaning element 183 have been scraped off by the wiper 2224 at another washing section 222, it can interact with the water guide section 224 to perform an immersion operation in the cleaning fluid.

Furthermore, the wiper 2224 is located on one side of the first washing section 2221 away from the second washing section 2222. The first washing protrusions 2223 on the first washing section 2221 and the second washing section 2222 are located on the same side of the wiper 2224, so that the first washing protrusions 2223 on both the first washing section 2221 and the second washing section 2222 are located between the wipers 2224 of the two first washing sections 2221. Therefore, the contact time between the wiped cleaning element 183 and the first washing protrusions 2223 can be increased, which improves the washing effect.

As in 7 As shown, in the embodiment above, the second washing section 2222 comprises a main branch 2225 connected to a side wall of the cleaning cavity and two secondary branches 2226 connected to the main branch 2225. A first opening connected to the wastewater discharge channel 2216 is formed between one end of branch 2226, located away from the main branch 2225, and the free end 2228 of the adjacent first washing section 2221. Therefore, the contaminant in the water collection zone 2214, formed between the secondary branch 2226 and the adjacent first washing section 2221, is guided through the first opening to the wastewater discharge channel 2216, then through the wastewater discharge channel 2216 to the wastewater sump 2212, and subsequently discharged through the wastewater pipe 223 to the outside of the cleaning cavity 2211.

As in the 5 to 8 As shown, in some possible embodiments according to the present disclosure, the two water guide sections 224 are distributed between the two first washing sections 2221 and are located on the side of the first washing sections 2221 away from the second washing sections 2222. Therefore, the cleaning fluid can be supplied to the cleaning element 183 in a concentrated manner using the two water guide sections 224, so that the cleaning element 183 can be completely wetted, thereby improving the cleaning effect.

A second opening is formed in connection with the wastewater discharge channel 2216 between the second end of the water conveyance section 224 and the free end 2228 of the adjacent first washing section 2221. Therefore, the contamination in the water collection zone 2214, which is formed between the water conveyance section 224 and the adjacent first washing section 2221, is conveyed through the second opening to the wastewater discharge channel 2216, then through the wastewater discharge channel 2216 to the wastewater sump 2212, and subsequently discharged through the wastewater pipe 223 to the outside of the cleaning cavity.

The wastewater sump 2212 is located between the two water guide sections 224. In a process where the cleaning element 183 interacts with the water guide section 224 to immerse itself in the cleaning fluid, some cleaning fluid may be forced out of the water guide groove 2241, and some cleaning fluid may drip from the cleaning element 183, which is separate from the water guide section 224. Therefore, by providing the wastewater sump 2212 between the two water guide sections 224, the cleaning fluid forced out of the water guide groove 2241 and the cleaning fluid dripping from the cleaning element 183, which is separate from the water guide section 224, can be quickly directed to the wastewater sump 2212 to improve the wastewater drainage efficiency of the wash disc 220.

As in 8 As shown, in some possible embodiments according to the present disclosure, the washing disc 220 further comprises a filter device 225, which is arranged within the wastewater sump 2212 and is located on a peripheral side of the wastewater pipe 223. By providing the filter device 225, contaminants with large particles can be filtered out within the cleaning cavity 2211, and it can be prevented that they block the wastewater pipe 223, thereby improving the cleanliness of the wastewater that is discharged through the wastewater pipe 223 to the wastewater tank 214 or an external environment.

Furthermore, the filter assembly 225 is detachably connected to the washing disc 220, and the filter assembly 225 can be detached from the washing disc 220 for separate washing of the filter assembly 225 and the washing disc 220 in order to improve the washing effect of the washing disc 220. In particular, the filter assembly 225 can be detachably connected to a seat body 221 by a threaded structure, a snap-fit structure, or a tenon structure.

The filter device 225 can be provided with a filter screen on one side of the wastewater sump 2212 in a circumferential direction or with filter screens on two sides of the wastewater sump 2212 in a circumferential direction. The wastewater sump 2212 may be equipped with a filter screen or a filter screen in its entire circumferential direction. Furthermore, a filter screen may also be arranged on the top of the filter device 225 to further improve the filtering effect of the filter device 225.

As in 8 As shown, in some possible embodiments according to the present disclosure, the washing disc 220 further comprises a liquid level detection device 226. The liquid level detection device 226 is arranged within the wastewater sump 2212 and configured to detect the liquid level within the wastewater sump 2212. The liquid level detection device 226 allows the determination of whether the liquid level of the wastewater sump 2212 is within a reasonable range, thus preventing secondary contamination caused by pollution that would result from a higher liquid level in the wastewater sump 2212 exiting the cleaning cavity. The liquid level detection device 226 improves the operational safety and cleaning performance of the washing disc 220.

In particular, the liquid level detection device 226 can be a liquid level sensor or other structures that meet the requirements.

Furthermore, the liquid level detection device 226 comprises a float assembly arranged on the filter device 225, and the float assembly includes a float body that floats on the surface of the liquid under the influence of the liquid. One of a non-contact sensing element and a non-contact detected element is arranged on the float body, and the other is arranged on the base station 200. If the filter device 225 is arranged within the wastewater sump 2212 and the surface of the liquid within the wastewater sump 2212 is within a specific range, the non-contact sensing element is able to detect the non-contact detected element.

The non-contact sensing element is configured to detect the non-contact detected element. For example, the non-contact sensing element is configured to detect a signal parameter emitted by the non-contact detected element. One of the non-contact sensing element and one of the non-contact detected element are located on the float, and the other is located on the base station 200. This means that one of the non-contact sensing element and one of the non-contact detected element move with the float, while the other is fixed to a specific position on the base station 200. In this way, as the float moves up and down under the influence of the liquid, the non-contact sensing element detects that the signal parameters emitted by the non-contact detected element vary. Furthermore, a range of the liquid level within the wastewater sump 2212 can be determined based on these different signal parameters, and it can also be determined whether the liquid level is within a reasonable range.

If the filter assembly 225 is located within the wastewater sump 2212 and the surface of the liquid within the wastewater sump 2212 is within a specific range, the non-contact sensing element can also detect the non-contact detected element, indicating that the filter assembly 225 is correctly mounted on the seat body 221 and the water level within the wastewater sump 2212 is within the specific range. For example, the normal operation of the base station 200 is not affected if the water level within the wastewater sump 2212 is in a safe position. That is, the detection device, which consists of the float assembly, the non-contact sensing element, and the non-contact detected element, can simultaneously detect the liquid level within the wastewater sump 2212 and the current position of the filter assembly 225. This extends the function of the float assembly and simplifies the configuration of the detection device. It simplifies the product structure, system software program and algorithm, effectively reducing costs and enabling the design to be suitable for popularization and application.

In other words, in the base station 200 according to an embodiment of the present disclosure, the float arrangement is arranged on the filter device 225 and interacts with the non-contact sensing element and the non-contact sensing element, so that the base station 200 can simultaneously detect whether the filter device 225 is mounted in a cleaning groove and whether the water level within the cleaning groove is within a normal range, thereby simplifying the structure of the base station 200.

As in 4 As shown, a water refill connection 2114 is also located within the opening. The water refill connector 211 is arranged in the intake cavity 211 of the base station 200, an inlet of the water refill connector 2114 is connected to the clean water tank 213, and an outlet of the water refill connector 2114 is configured to be connected to the water inlet of the self-propelled cleaning device 100 in order to implement a water refill operation on the self-propelled cleaning device 100.

The base station 200 is also equipped with a charging docking arrangement. This arrangement includes a charging contact pole piece 2113, which is located within the receiving cavity 211. When the self-propelled cleaning device 100 is docked within the receiving cavity 211 of the base station 200, the charging pole piece of the self-propelled cleaning device 100 is connected to the charging contact pole piece 2113 of the base station 200 to perform a charging operation on the self-propelled cleaning device 100.

The present disclosure has been explained by the embodiments described above; however, it is understood that the embodiments described above serve only as examples and illustrations and are not intended to limit the present disclosure to the scope of the described embodiments. Furthermore, it is apparent to the person skilled in the art that the present disclosure is not limited to the embodiments described above and that further variations and modifications can be made in accordance with the teachings of the present disclosure, all of which fall within the scope of protection of the present disclosure. The scope of protection of the present disclosure is defined by the attached claims and equivalent scopes of protection therein.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions.

Cited patent literature

• CN 202320564399.0 [0001]

Claims (17)

A washing disc applicable to a base station for washing a self-propelled cleaning device, wherein the washing disc comprises: a cleaning cavity and a washing section arranged within the cleaning cavity, the washing section being configured to interact with a cleaning element of the self-propelled cleaning device to remove contamination from the cleaning element, the cleaning cavity being configured to contain the contamination, the washing disc being detachably connected to the base station. Washer disc after Claim 1 , wherein the base station comprises a receiving cavity for receiving the self-propelled cleaning device, a mounting groove is formed in a bottom wall of the receiving cavity, and a shape of an outer edge of the washing disc corresponds to a shape of the mounting groove. Washer disc after Claim 1 or 2 , wherein a wastewater sump is arranged within the cleaning cavity and one end of a wastewater pipe, which is arranged at the base station, extends to the wastewater sump. Washer disc after Claim 3 , wherein a notch is formed in a side wall of the cleaning cavity, and the wastewater pipe runs through the notch and is attached to the washing disc. Washer disc after Claim 3 or 4 , wherein the washing section is arranged on a bottom wall of the cleaning cavity and projects from a surface of the bottom wall of the cleaning cavity, the washing section comprises a connecting end and a free end, the connecting end is connected to a side wall of the cleaning cavity, and a first washing projection is arranged on a top surface of the washing section; and the number of washing sections is at least two. Washer disc after Claim 5 , further comprising: a water guide section, wherein the water guide section is arranged on the bottom wall of the cleaning cavity and projects from a surface of the cleaning cavity, a water guide groove is formed in a top surface of the water guide section, the water guide groove is connected to a water outlet at the base station, the water guide groove is configured to contain a cleaning fluid and is able to interact with the cleaning element, wherein the number of water guide sections is at least two. Washer disc after Claim 6 , wherein the water conveying sections and the washing sections are spaced apart from each other, a first end of the water conveying section is connected to the side wall of the cleaning cavity, a water collection zone is formed between two adjacent washing sections and water conveying sections, the wastewater sump is located within one of the water collection zones, a wastewater discharge channel is formed in the bottom wall of the cleaning cavity, and the wastewater sump is connected to each of the water collection zones by the wastewater discharge channel. Washer disc after Claim 7 , wherein the bottom wall of the cleaning cavity, which is located within the water collection zone, is provided as a guide surface, and the guide surface is an inclined plane or an inclined curved surface. Washer disc after Claim 7 or 8 , wherein a liquid drain passage is formed in conjunction with each water guide groove in the water guide section, and the liquid drain passage is connected to a groove base of the water guide groove; and a second washing projection is also arranged within the water guide groove. Washer disc after one of the Claims 7 until 9 , wherein each washing section comprises a first washing section, a wiper is arranged on a top side of the first washing section in a direction from the connecting end to the free end, and the first washing protrusions are located on the same side of the wiper. Washer disc after Claim 10 , wherein each washing section further comprises a second washing section, the second washing section being located between the two first washing sections, and the scraper being located on one side of the first washing section away from the second washing section. Washer disc after Claim 11 , wherein the second washing section comprises a main branch connected to the side wall of the cleaning cavity and two secondary branches connected to the main branch, and a first opening in conjunction with the wastewater discharge channel is formed between a terminal section of each lateral branch, away from the main branch and the free end of the adjacent first washing section. Washer disc after Claim 11 or 12 , wherein the two water conveyance sections are distributed between the two first washing sections and are located on the sides of the first washing sections away from the second washing sections, and a second opening in connection with the wastewater discharge channel is formed between a second end of each water conveyance section and the free end of the adjacent first washing section; and wherein the wastewater sump is located between the two water conveyance sections. Washer disc after one of the Claims 3 until 13 , further comprising: a filter device arranged within the sewage sump and located on a peripheral side of the sewage pipe. Washer disc after Claim 14 , further comprising: a liquid level detection device arranged within the wastewater sump and configured to detect a liquid level within the wastewater sump, the liquid level detection device comprising a float assembly arranged on the filter assembly, and the float assembly comprising a float body which floats on a surface of a liquid under the action of the liquid; and one of a non-contact sensing element and a non-contact detected element arranged on the float body, the other of the non-contact sensing element and the non-contact detected element arranged on the base station, and the non-contact sensing element being able to detect the non-contact detected element when the filter assembly is arranged within the wastewater sump and the surface of the liquid within the wastewater sump is within a specific range. Base station, comprising a washer disc according to one of the Claims 1 until 15 . Cleaning robot system, comprising: a self-driving cleaning device and the base station Claim 16 .