Sewage tank, cleaning equipment and cleaning system

Abstract

The utility model discloses a sewage tank, cleaning equipment and a cleaning system, and the sewage tank comprises a tank body which is provided with a circulation channel for air to flow out; the filter screen assembly is rotatably mounted in the circulation channel; and the driving assembly is installed in the circulation channel, and the output end of the driving assembly can be in dynamic coupling connection with the filter screen assembly so as to drive the filter screen assembly to rotate. The filter screen assembly is driven by the driving assembly to rotate, and pollutants such as impurities and sewage on the filter screen assembly are thrown into the sewage tank under the centrifugal effect, so that when the sewage tank is cleaned, only the interior of the sewage tank needs to be cleaned, the filter screen assembly does not need to be additionally disassembled to clean the filter screen assembly, the cleaning difficulty of the sewage tank is reduced, and the cleaning efficiency is improved. The cleaning convenience is improved, and the filtering effect can be improved.

Description

Technical Field

[0001] This application belongs to the field of cleaning equipment technology, and particularly relates to a sewage tank, cleaning equipment and cleaning system. Background Technology

[0002] When the cleaning equipment is working, it can absorb sewage and dust from the ground and collect them in a sewage tank. The sewage tank is equipped with a filter screen to filter out larger solid dirt. However, dirt such as hair and dust will stick to the top of the filter screen and cannot be removed. When cleaning the sewage tank, the filter screen needs to be removed and cleaned, which is difficult and inefficient. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a wastewater tank, cleaning equipment, and cleaning system that reduce the difficulty of cleaning the wastewater tank, improve the convenience of cleaning, and enhance the filtration effect.

[0004] In a first aspect, this application provides a sewage tank, comprising:

[0005] The enclosure has a flow channel for air to escape;

[0006] The filter assembly is rotatably installed within the flow channel;

[0007] The drive component is installed in the flow channel. The output end of the drive component can be dynamically coupled to the filter assembly to drive the filter assembly to rotate.

[0008] According to the wastewater tank of this application, the filter assembly is driven to rotate by the drive component, so that impurities and pollutants such as wastewater on the filter assembly are thrown into the wastewater tank under the action of centrifugation. Therefore, when cleaning the wastewater tank, only the inside of the wastewater tank needs to be cleaned, without the need to disassemble the filter assembly for cleaning. This reduces the difficulty of cleaning the wastewater tank, improves the convenience of cleaning, and can improve the filtration effect.

[0009] According to one embodiment of this application, when the output end of the drive component rotates in a first direction, it cooperates with the filter assembly to drive the filter assembly to rotate; when the output end of the drive component rotates in a second direction, it separates from the filter assembly. The first direction and the second direction are opposite.

[0010] According to one embodiment of this application, the driving component includes:

[0011] The driver is installed within the flow channel;

[0012] The transmission component is poweredly coupled to the driver. The transmission component is provided with a first ratchet part, and the filter assembly is provided with a second ratchet part. When the output end of the drive assembly rotates in a first direction, the first ratchet part and the second ratchet part mesh.

[0013] According to one embodiment of this application, the sewage tank further includes:

[0014] The impeller is rotatably installed in the flow channel and is located on the side of the filter assembly facing the outlet end of the flow channel. The impeller is equipped with blades, and when the output end of the drive assembly rotates in the second direction, it cooperates with the impeller to drive the impeller to rotate.

[0015] According to one embodiment of this application, the sewage tank further includes:

[0016] The driver is installed within the flow channel;

[0017] The transmission component is poweredly coupled to the output end of the driver. The transmission component is provided with a third ratchet part, and the rotating wheel is provided with a fourth ratchet part. When the output end of the drive assembly rotates in the second direction, the third ratchet part and the fourth ratchet part mesh.

[0018] According to one embodiment of this application, a transmission member is movably disposed between the filter assembly and the rotating wheel, and the driver is poweredly coupled to the filter assembly or the rotating wheel through the transmission member.

[0019] According to one embodiment of this application, the output end of the driver is provided with a drive shaft, the transmission component is dynamically coupled to the drive shaft and is movably arranged along the axial direction of the drive shaft, and the rotation axes of the drive shaft, the transmission component, the filter assembly and the wheel are coaxially arranged.

[0020] According to one embodiment of this application, the transmission component includes:

[0021] The shaft is dynamically coupled to the drive shaft, and the shaft is movable along the axial direction of the drive shaft;

[0022] A boss is provided on the periphery of the shaft. The boss is located between the rotating wheel and the filter assembly. A first ratchet part is provided on the side of the boss facing the filter assembly. A second ratchet part that can be power-coupled with the first ratchet part is provided on the side of the filter assembly facing the boss. A third ratchet part is provided on the side of the boss facing the rotating wheel. A fourth ratchet part is provided on the side of the rotating wheel facing the boss.

[0023] The ratchet teeth of the first ratchet section and the third ratchet section face opposite directions.

[0024] According to one embodiment of this application, the distance between the opposite sides of the first ratchet portion and the third ratchet portion is greater than the distance between the second ratchet portion and the fourth ratchet portion.

[0025] According to one embodiment of this application, a filter assembly is disposed on the underside of the rotating wheel, and an elastic element is connected between the filter assembly and the shaft, the elastic element applying an elastic force toward the rotating wheel to the shaft.

[0026] According to one embodiment of this application, the roller is sleeved outside the shaft.

[0027] According to one embodiment of this application, the filter assembly includes:

[0028] The filter screen support is rotatably installed in the flow channel. The filter screen support is provided with a sleeve extending along its rotation axis. The second ratchet part is located at the end of the sleeve facing the boss, and the end of the shaft facing the filter screen support extends into the sleeve.

[0029] The filter screen is covered by the filter screen support.

[0030] According to one embodiment of this application, the filter assembly is provided with a groove-shaped recess facing the inlet end of the flow channel, and the roller is disposed in the groove formed by the filter assembly.

[0031] Secondly, this application provides a cleaning device, which includes:

[0032] Such as the sewage tank of any of the technical solutions in the first aspect;

[0033] The sewage suction pump is connected to the flow channel.

[0034] The beneficial effects of the cleaning equipment provided in the second aspect of this application are the same as those of the sewage tank provided in the first aspect, and will not be repeated here.

[0035] Thirdly, this application provides a cleaning system comprising:

[0036] Clean base stations;

[0037] For example, the second aspect of cleaning equipment involves cleaning or waste removal when the equipment is parked at a cleaning base station.

[0038] The beneficial effects of the cleaning system provided in the third aspect of this application are the same as those of the cleaning equipment provided in the second aspect, and will not be repeated here.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is a partial structural schematic diagram of the cleaning equipment provided in an embodiment of this application;

[0042] Figure 2 This is a partial cross-sectional view of the cleaning equipment provided in the embodiments of this application;

[0043] Figure 3This is a partial cross-sectional view of the sewage tank provided in an embodiment of this application;

[0044] Figure 4 This is a partial exploded structural diagram of the sewage tank provided in the embodiments of this application;

[0045] Figure 5 This is another partial cross-sectional view of the sewage tank provided in the embodiments of this application;

[0046] Figure 6 This is another partial cross-sectional view of the sewage tank provided in the embodiments of this application;

[0047] Figure 7 This is a schematic diagram of the structure of the filter support provided in the embodiment of this application.

[0048] Figure label:

[0049] 1000. Cleaning equipment;

[0050] 100. Wastewater tank; 110. Tank body; 111. Flow channel; 120. Filter assembly; 121. Filter support; 1211. Sleeve; 1212. Second ratchet part; 122. Filter screen; 130. Drive assembly; 131. Driver; 132. Drive shaft; 133. Transmission component; 1331. Shaft; 1332. Boss; 1333. First ratchet part; 1334. Third ratchet part; 140. Rotary wheel; 141. Fourth ratchet part; 142. Blade; 150. Elastic element;

[0051] 200. Sewage suction pump. Detailed Implementation

[0052] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0053] The following is for reference. Figures 1-7 This application describes a wastewater tank, cleaning equipment, and cleaning system according to embodiments thereof.

[0054] This application provides a cleaning device 1000.

[0055] Please see Figure 1 The cleaning equipment 1000 includes a wastewater tank 100 and a vacuum pump 200.

[0056] Please see Figure 2 According to some embodiments of this application, the sewage tank 100 includes a tank body 110, a filter assembly 120, and a drive assembly 130.

[0057] The housing 110 has a flow channel 111 for air to flow out.

[0058] The filter assembly 120 is rotatably installed in the flow channel 111.

[0059] The drive assembly 130 is installed in the flow channel 111. The output end of the drive assembly 130 can be dynamically coupled to the filter assembly 120 to drive the filter assembly 120 to rotate.

[0060] The housing 110 is the main structure of the sewage tank 100, used to contain sewage and impurities. It contains a sewage-containing space, while the flow channel 111 allows air drawn in by the cleaning equipment 1000 during operation to be discharged from the sewage tank 100. The flow channel 111 can be a through-hole or pipe structure located on the top, side, or other positions of the housing 110. For example, the flow channel 111 can be a through-hole in the top of the housing 110, or a square pipe extending from the top surface of the housing 110.

[0061] The filter assembly 120 is used to filter sewage and impurities drawn into the sewage tank 100, intercepting larger solid waste. It is rotatably installed in the flow channel 111, and there are several ways to rotatably install the filter assembly 120. For example, the filter assembly 120 can be rotatably connected to the tank 110 via a rotating shaft, with one end of the shaft fixedly installed at the center of the filter assembly 120 and the other end rotatably installed on the tank 110 via a bearing; or the edge of the filter assembly 120 can be circular, with an annular locking protrusion on the periphery of the filter assembly 120, and an annular groove on the inner wall of the flow channel 111 that mates with the annular locking protrusion, allowing the annular locking protrusion to move within the annular groove.

[0062] The drive assembly 130 is installed in the flow channel 111. Its function is to provide power for the rotation of the filter assembly 120. The drive assembly 130 can be a motor, the output shaft of which is connected to the rotating shaft of the filter assembly 120 through a coupling; it can also be a cylinder, which drives the transmission rod through extension and retraction, and the transmission rod is connected to the filter assembly 120, thereby driving the filter assembly 120 to rotate; or it can be a gear transmission mechanism, in which the motor drives the drive gear to rotate, and the drive gear meshes with the driven gear installed on the rotating shaft of the filter assembly 120 to realize power transmission.

[0063] In actual operation, during the operation of the cleaning equipment 1000, the flow channel 111 generates negative pressure, drawing sewage and impurities into the sewage tank 100. As some sewage and impurities enter the flow channel 111 under the influence of airflow, they are filtered by the filter assembly 120, intercepting larger solid contaminants. After cleaning is complete, the drive assembly 130 is activated, outputting power to rotate the filter assembly 120 via a power coupling connection. During high-speed rotation, the filter assembly 120 uses centrifugal force to throw the impurities and sewage adhering to it into the sewage tank 100.

[0064] According to the wastewater tank 100 provided in the embodiments of this application, the filter assembly 120 is driven to rotate by the drive assembly 130, so that impurities and pollutants such as wastewater on the filter assembly 120 are thrown into the wastewater tank 100 under the action of centrifugation. Therefore, when cleaning the wastewater tank 100, only the inside of the wastewater tank 100 needs to be cleaned, without having to disassemble the filter assembly 120 separately for cleaning, reducing the cleaning difficulty of the wastewater tank 100 and improving the convenience of cleaning. At the same time, during the rotation of the filter assembly 120, impurities attached to the surface of the filter 122 can be removed in time, avoiding impurities from clogging the pores of the filter 122, thereby improving the filtration effect.

[0065] The sewage suction pump 200 is connected to the flow channel 111.

[0066] The vacuum pump 200 is connected to the flow channel 111. The function of the vacuum pump 200 is to provide suction to draw sewage, dust, and impurities from the ground into the sewage tank 100 through the pipe. The vacuum pump 200 can be of various types, such as a centrifugal pump or a diaphragm pump, and its power and suction strength are selected according to the actual needs of the cleaning equipment 1000. The connection between the vacuum pump 200 and the flow channel 111 can be via a pipe. The pipe material should have certain corrosion resistance and sealing properties to ensure effective suction transmission and prevent sewage leakage.

[0067] The vacuum pump 200 is connected to the flow channel 111 of the wastewater tank 100 via a pipe, forming a complete vacuum system. The wastewater tank 100 is installed in a suitable location within the cleaning equipment 1000, providing space for the vacuum pump 200 to hold wastewater and impurities, while simultaneously processing the sucked-in materials through the internal filter assembly 120. When the vacuum pump 200 is operating, the suction force it generates draws wastewater and impurities into the wastewater tank 100 through the pipe. After being filtered by the filter assembly 120, air is discharged through the flow channel 111, leaving the wastewater and impurities inside the wastewater tank 100.

[0068] According to the cleaning equipment 1000 provided in this application embodiment, the unique design of the wastewater tank 100 effectively improves the filtration effect, reduces the clogging of the filter screen 122, and simultaneously reduces the difficulty of cleaning and improves the convenience of cleaning. The connection between the suction pump 200 and the wastewater tank 100 ensures the stable implementation of the suction function, and can efficiently suck wastewater and impurities from the ground into the wastewater tank 100. The overall structure enhances the performance of the cleaning equipment 1000, better meets the user's needs for cleaning work, improves cleaning efficiency, and extends the service life of the equipment, as the good filtration and self-cleaning functions reduce the risk of damage to internal components.

[0069] According to some embodiments of this application, when the output end of the drive component 130 rotates in the first direction, it can cooperate with the filter component 120 to drive the filter component 120 to rotate; when the output end of the drive component 130 rotates in the second direction, it can separate from the filter component 120. The first direction and the second direction are opposite.

[0070] The output end of the drive assembly 130 is its power output part, such as the output shaft of a motor. The first direction can be clockwise or counterclockwise, without specific limitation. The second direction is the opposite of the first direction.

[0071] When the output end rotates in the first direction, it cooperates with the filter assembly 120 to drive the filter assembly 120 to rotate; when the output end rotates in the second direction, it separates from the filter assembly 120.

[0072] In some examples, the output end of the drive assembly 130 and the filter assembly 120 can be connected via a clutch structure. Specifically, a one-way clutch can be provided at the connection point between the output end of the drive assembly 130 and the filter assembly 120. When the output end rotates in a first direction, the one-way clutch engages, allowing the drive assembly 130 to transmit power to the filter assembly 120, causing the filter assembly 120 to rotate. When the output end of the drive assembly 130 rotates in a second direction, it disengages from the filter assembly 120. Taking the one-way clutch as an example, when the output end rotates in the second direction, the one-way clutch is disengaged, the power of the drive assembly 130 cannot be transmitted to the filter assembly 120, and the filter assembly 120 will not rotate.

[0073] In other examples, the engagement can also be achieved through a transmission structure such as a gear and rack. When the output end rotates in the first direction, it drives the gear to rotate, and the gear meshes with the rack on the filter assembly 120, thereby driving the filter assembly 120 to rotate. When the output end rotates in the second direction, the gear may disengage from the rack, thus separating from the filter assembly 120.

[0074] In actual operation, when it is necessary to clean the filter assembly 120 and rotate it to remove impurities, the output end of the drive assembly 130 is controlled to rotate in the first direction. At this time, the drive assembly 130 cooperates with the filter assembly 120 to drive the filter assembly 120 to rotate, using centrifugal force to detach impurities and sewage from the filter assembly 120. When the rotation of the filter assembly 120 is not needed, the drive assembly 130 can be controlled to stop working, or the output end of the drive assembly 130 can be controlled to rotate in the second direction, separating the drive assembly 130 from the filter assembly 120, stopping the rotation of the filter assembly 120, without affecting the normal filtration operation of the sewage tank 100.

[0075] This design makes the drive assembly 130 controllable in driving the filter assembly 120. It can drive the filter assembly 120 to rotate when cleaning is required, while not affecting the stationary state of the filter assembly 120 during normal filtration operation. This ensures the stability of the filtration function of the wastewater tank 100, and can also effectively clean the filter assembly 120, further improving the convenience of cleaning the wastewater tank 100 and the filtration effect.

[0076] Please see Figure 3 and Figure 4 According to some embodiments of this application, the drive assembly 130 may include a driver 131 and a transmission member 133. The driver 131 may be installed in the flow channel 111; the transmission member 133 may be power-coupled with the driver 131, and the transmission member 133 may be provided with a first ratchet portion 1333, while the filter assembly 120 may be provided with a second ratchet portion 1212. When the output end of the drive assembly 130 rotates in a first direction, the first ratchet portion 1333 engages with the second ratchet portion 1212.

[0077] The driver 131 is the power source for the drive assembly 130. It is installed within the flow channel 111 to provide power to the entire drive assembly 130. The driver 131 can be an electric motor, which has advantages such as convenient control and stable power output; it can also be other devices that can provide rotational power, such as a hydraulic motor. The driver 131 can be installed on the housing 110 by bolting, welding, or snap-fitting to ensure a secure installation and stable power output.

[0078] The transmission component 133 is poweredly coupled to the driver 131 to transmit the power output by the driver 131 to the filter assembly 120. The power coupling can be achieved through a coupling or gear transmission. The transmission component 133 is provided with a first ratchet portion 1333, which is a component with a special tooth profile structure. Its tooth profile is usually unidirectionally inclined to facilitate unidirectional transmission.

[0079] The first ratchet portion 1333 is mounted on the transmission member 133, and the second ratchet portion 1212 is mounted on the filter assembly 120. When the output end of the drive assembly 130 rotates in the first direction, the first ratchet portion 1333 and the second ratchet portion 1212 engage, realizing the transmission of power from the transmission member 133 to the filter assembly 120, thereby driving the filter assembly 120 to rotate. However, when the output end of the drive assembly 130 rotates in the second direction, due to the unidirectional characteristic of the ratchet, the first ratchet portion 1333 and the second ratchet portion 1212 do not engage effectively, and they disengage, so the filter assembly 120 is not driven to rotate.

[0080] By employing a ratchet structure to achieve unidirectional transmission between the drive assembly 130 and the filter assembly 120, the rotation control of the filter assembly 120 becomes simpler and more reliable. It can effectively drive the filter assembly 120 to rotate when cleaning is required, while ensuring that the filter assembly 120 remains stationary during normal operation, thus not affecting the filtration function of the wastewater tank 100.

[0081] Please see Figure 3 and Figure 4 According to some embodiments of this application, the sewage tank 100 may further include a rotating wheel 140, which is rotatably installed in the flow channel 111 and located on the side of the filter assembly 120 facing the outlet end of the flow channel 111. The rotating wheel 140 is provided with blades 142, and when the output end of the drive assembly 130 rotates in the second direction, it cooperates with the rotating wheel 140 to drive the rotating wheel 140 to rotate.

[0082] The impeller 140 is rotatably mounted within the flow channel 111 via bearings, shafts, or other structures, positioned on the side of the filter assembly 120 facing the outlet end of the flow channel 111. Its main function, under specific operating conditions, is to work with the blades 142 to treat the airflow and water vapor within the flow channel 111. The number of impellers 140 is not limited; a single impeller 140 can be used to meet basic functions; if two impellers 140 are used, they can be arranged axially along the flow channel 111 to further enhance the water vapor interception effect. The impeller 140 can be made of corrosion-resistant plastic or lightweight metal to ensure long-term stable operation in the humid environment of the wastewater tank 100.

[0083] The blades 142 are fixedly mounted on the rotor 140. Their shape can be square, arc-shaped, or angled, and they are connected to the rotor 140 via injection molding, bolts, or clips. The number of blades 142 is not limited and can range from 2 to 8, evenly distributed around the circumference of the rotor 140 to ensure balanced force during rotation. During the rotation of the rotor 140, the blades 142 can intercept and beat water vapor carried in the airflow, or create a rotating airflow that causes water in the airflow to be thrown against the sidewall of the flow channel 111 by centrifugal force.

[0084] When the output end of the drive assembly 130 rotates in the second direction, it can establish a power connection with the rotating wheel 140 through gear meshing, belt drive, or chain drive. For example, a drive gear can be provided at the output end of the drive assembly 130, and a driven gear can be provided on the central shaft of the rotating wheel 140. When the output end rotates in the second direction, the drive gear drives the driven gear, thereby driving the rotating wheel 140 to rotate; or a synchronous belt can be used to connect the pulleys of both to achieve power transmission.

[0085] In actual operation, when the cleaning equipment 1000 is in normal working condition, the sewage and impurities are sucked into the sewage tank 100 by the suction pump 200. At this time, the filter assembly 120 filters the sewage, and larger solid wastes are intercepted. During the suction process, some water vapor will enter the flow channel 111 through the filter assembly 120 with the airflow. To prevent this water vapor from entering the suction pump 200, the output end of the drive assembly 130 is controlled to rotate in the second direction. When the output end of the drive assembly 130 rotates in the second direction, it separates from the filter assembly 120, and the filter assembly 120 remains stationary, maintaining a stable filtration effect. At the same time, the output end of the drive assembly 130 cooperates with the rotor 140 through the transmission component, driving the rotor 140 to rotate at high speed. The blades 142 on the rotor 140 rotate rapidly, throwing the water vapor carried in the airflow onto the side wall of the flow channel 111. This water can eventually flow back to the bottom of the sewage tank 100 under the action of gravity, thereby preventing water vapor from entering the suction pump and ensuring stable operation of the equipment.

[0086] Differentiated functions are achieved by utilizing different rotation directions of the output end of the drive component 130. When the output end of the drive component 130 rotates in the second direction, under the premise of ensuring normal filtration by the filter component 120, water vapor is intercepted by the wheel 140 and the blades 142, effectively preventing water vapor from entering the suction pump, preventing equipment failure due to water vapor corrosion, and extending the service life of the equipment. At the same time, by returning the water vapor to the sewage tank 100, the residual water vapor inside the sewage tank 100 is reduced, the risk of bacterial growth is reduced, the internal environment of the sewage tank 100 is improved, and the reliability and cleaning effect of the sewage tank 100 are further enhanced.

[0087] Please see Figure 3 and Figure 4 According to some embodiments of this application, the sewage tank 100 may further include a driver 131 and a transmission component 133. The driver 131 may be installed in the flow channel 111; the transmission component 133 may be dynamically coupled to the output end of the driver 131. The transmission component 133 is provided with a third ratchet portion 1334, and the rotating wheel 140 is provided with a fourth ratchet portion 141. When the output end of the drive assembly 130 rotates in the second direction, the third ratchet portion 1334 engages with the fourth ratchet portion 141.

[0088] The driver 131 is the power source for the drive assembly 130. It is installed within the flow channel 111 to provide power to the entire drive assembly 130. The driver 131 can be an electric motor, which has advantages such as convenient control and stable power output; it can also be other devices that can provide rotational power, such as a hydraulic motor. The driver 131 can be installed on the housing 110 by bolting, welding, or snap-fitting to ensure a secure installation and stable power output.

[0089] The transmission component 133 is power-coupled to the output end of the driver 131 to transmit the power of the driver 131 to the rotating wheel 140. The power coupling can be achieved through a coupling, gear transmission, or other means. The transmission component 133 is provided with a third ratchet portion 1334, which has a special tooth profile, typically unidirectionally inclined, facilitating unidirectional transmission. The material of the transmission component 133 can be selected according to actual requirements; for example, metal can ensure its strength and wear resistance.

[0090] The third ratchet portion 1334 is mounted on the transmission member 133, and the fourth ratchet portion 141 is mounted on the rotating wheel 140. When the output end of the drive assembly 130 rotates in the second direction, the third ratchet portion 1334 and the fourth ratchet portion 141 engage, realizing the transmission of power from the transmission member 133 to the rotating wheel 140, thereby driving the rotating wheel 140 to rotate. However, when the output end of the drive assembly 130 rotates in the first direction, due to the unidirectional characteristic of the ratchet, the third ratchet portion 1334 and the fourth ratchet portion 141 do not effectively engage, and they disengage, so the rotating wheel 140 is not driven to rotate.

[0091] When the cleaning device 1000 is operating in the air suction mode, some water vapor will pass through the filter assembly 120 with the airflow. To prevent this water vapor from entering the suction pump, the rotating wheel 140 needs to be driven to rotate to intercept the water vapor. At this time, the output end of the control drive assembly 130 rotates in the second direction, and the power output by the driver 131 is transmitted through the transmission component 133. Since the third ratchet part 1334 and the fourth ratchet part 141 are engaged when the output end of the drive assembly 130 rotates in the second direction, the transmission component 133 drives the rotating wheel 140 to rotate, and the blades 142 on the rotating wheel 140 rotate accordingly, splashing the water carried in the airflow onto the side wall of the housing 110 or the filter assembly 120, and then flowing back into the sewage tank 100 under the action of gravity. When the output end of the drive assembly 130 rotates in the first direction, the third ratchet part 1334 and the fourth ratchet part 141 separate, the rotating wheel 140 stops rotating, and the filter assembly 120 can be cleaned under the action of centrifugal force.

[0092] Please see Figure 4 , Figure 5 and Figure 6According to some embodiments of this application, the transmission member 133 can be movably disposed between the filter assembly 120 and the rotating wheel 140, and the driver 131 can be poweredly coupled to the filter assembly 120 or the rotating wheel 140 through the transmission member 133.

[0093] The transmission component 133 can move between the filter assembly 120 and the rotating wheel 140. This movement can be linear movement along the axial direction or oscillation at a certain angle. The movable arrangement of the transmission component 133 enables the switching of power coupling between the driver 131 and different components (filter assembly 120 or rotating wheel 140). The transmission component 133 can achieve linear movement through structures such as guide rails or slides, or oscillation through structures such as shaft pins. For example, a guide rail is provided on the housing 110, and the transmission component 133 is mounted on the guide rail, allowing it to slide along the guide rail between the filter assembly 120 and the rotating wheel 140.

[0094] When the transmission component 133 moves to the position that engages with the filter assembly 120, the power of the driver 131 can be transmitted to the filter assembly 120 through the transmission component 133, driving the filter assembly 120 to rotate; when the transmission component 133 moves to the position that engages with the rotating wheel 140, the power of the driver 131 is transmitted to the rotating wheel 140, driving the rotating wheel 140 to rotate.

[0095] The transmission component 133 is movably disposed between the filter assembly 120 and the rotating wheel 140, allowing a single actuator 131 to selectively drive either the filter assembly 120 or the rotating wheel 140 via the transmission component 133, thus enabling the switching of different functions of the wastewater tank 100. This design improves the integration of the equipment, reduces the number of actuators 131 required, and lowers costs. Simultaneously, by rationally controlling the position of the transmission component 133, the filter assembly 120 can be cleaned flexibly, and water vapor can be intercepted, further improving the cleaning effect and performance of the wastewater tank 100, and enhancing the practicality and reliability of the equipment.

[0096] Please see Figure 4 , Figure 5 and Figure 6 According to some embodiments of this application, the output end of the driver 131 may be provided with a drive shaft 132, and the transmission component 133 may be dynamically coupled to the drive shaft 132 and movably arranged along the axial direction of the drive shaft 132. The rotation axes of the drive shaft 132, the transmission component 133, the filter assembly 120 and the wheel 140 may be arranged coaxially.

[0097] The output end of the driver 131 is provided with a drive shaft 132. The drive shaft 132 is driven by the driver 131 to rotate around its axis. The material of the drive shaft 132 is usually metal to ensure sufficient strength and rigidity to transmit power.

[0098] The transmission component 133 is dynamically coupled to the drive shaft 132, and can receive the power transmitted by the drive shaft 132. Simultaneously, the transmission component 133 is movably arranged along the axial direction of the drive shaft 132. This movement can be achieved through spline engagement, guide key engagement, or other methods. For example, the drive shaft 132 may have an external spline machined on it, and the transmission component 133 may have a matching internal spline machined in its inner hole. The transmission component 133 can both rotate under the drive shaft 132 and slide along the axial direction of the drive shaft 132. The movement of the transmission component 133 is to achieve selective dynamic coupling with the filter assembly 120 or the rotating wheel 140.

[0099] The rotation axes of the drive shaft 132, the transmission component 133, the filter assembly 120, and the rotor 140 are coaxial. This coaxial arrangement ensures the stability and efficiency of power transmission, reduces vibration and energy loss caused by misalignment, makes the transmission process smoother, and improves the reliability and performance of the entire wastewater tank 100 system. It also optimizes the spatial layout and reduces the occupancy of radial space.

[0100] Please see Figure 4 , Figure 5 and Figure 6 According to some embodiments of this application, the transmission member 133 may include a shaft 1331 and a boss 1332.

[0101] The shaft 1331 can be dynamically coupled to the drive shaft 132, and the shaft 1331 is movably arranged along the axial direction of the drive shaft 132. The boss 1332 can be provided on the periphery of the shaft 1331, and the boss 1332 is located between the rotating wheel 140 and the filter assembly 120. The side of the boss 1332 facing the filter assembly 120 is provided with a first ratchet portion 1333, the side of the filter assembly 120 facing the boss 1332 is provided with a second ratchet portion 1212 that can be dynamically coupled with the first ratchet portion 1333, the third ratchet portion 1334 is located on the side of the boss 1332 facing the rotating wheel 140, and the fourth ratchet portion 141 is located on the side of the rotating wheel 140 facing the boss 1332. The ratchet teeth of the first ratchet portion 1333 and the third ratchet portion 1334 face opposite directions.

[0102] The shaft 1331 is dynamically coupled to the drive shaft 132, ensuring that rotational power can be obtained from the drive shaft 132. It is movably positioned along the axial direction of the drive shaft 132, a movement achieved using structures such as splines or guide keys. In some examples, the drive shaft 132 has an external spline, and the shaft 1331 has a matching internal spline within its bore. This allows the shaft 1331 to both rotate with the drive shaft 132 and move axially, thus enabling the switching of power connections between the transmission component 133 and different components. In other examples, the transmission component 133 may have a connecting groove extending along its rotation axis. The connecting groove has a polygonal cross-sectional shape, and the drive shaft 132 is movably positioned within the connecting groove along its axial direction, with the cross-sectional shape of the drive shaft 132 matching that of the connecting groove.

[0103] A boss 1332 is disposed on the periphery of the shaft 1331 and located between the rotating wheel 140 and the filter assembly 120. The boss 1332 serves to mount the ratchet portion and to transmit power. The boss 1332 provides a base for the first ratchet portion 1333 and the third ratchet portion 1334, and allows the corresponding ratchet portion to engage with the ratchet portion on the filter assembly 120 or the rotating wheel 140 according to the axial movement of the shaft 1331. In some examples, the first ratchet portion 1333 and the third ratchet portion 1334 can be machined onto the surface of the boss 1332.

[0104] The ratchet teeth of the first ratchet portion 1333 and the third ratchet portion 1334 face opposite directions. This ensures that when the output end of the drive assembly 130 rotates in different directions, it can drive the filter assembly 120 and the wheel 140 respectively.

[0105] The first ratchet portion 1333 is disposed on the side of the boss 1332 facing the filter assembly 120, and the second ratchet portion 1212 is disposed on the side of the filter assembly 120 facing the boss 1332. When the shaft 1331 moves axially, causing the boss 1332 to approach the filter assembly 120, the two can be dynamically coupled. Specifically, when the output end of the drive assembly 130 rotates in the first direction, the first ratchet portion 1333 engages with the second ratchet portion 1212, driving the filter assembly 120 to rotate, while the rotating wheel 140 does not rotate.

[0106] The third ratchet portion 1334 is located on the side of the boss 1332 facing the rotating wheel 140, and the fourth ratchet portion 141 is located on the side of the rotating wheel 140 facing the boss 1332. When the shaft 1331 moves axially, causing the boss 1332 to approach the rotating wheel 140, the two can be dynamically coupled. Specifically, when the output end of the drive assembly 130 rotates in the second direction, the third ratchet portion 1334 and the fourth ratchet portion 141 engage, driving the rotating wheel 140 to rotate, while the filter assembly 120 does not rotate.

[0107] By designing the transmission component 133 as a structure of shaft 1331 and boss 1332, and setting ratchet portions with different orientations on both sides of the boss 1332, a single driver 131 selectively drives the filter assembly 120 or the rotor 140 to rotate via the axial movement of the shaft 1331. This design further optimizes the power transmission structure and improves the integration and reliability of the equipment. Simultaneously, utilizing the opposite orientation of the ratchet teeth ensures that the filter assembly 120 and the rotor 140 can operate independently under different rotation directions, meeting the different functional requirements of the wastewater tank 100 for cleaning and water vapor interception, thus enhancing the overall performance and practicality of the wastewater tank 100.

[0108] Please see Figure 4 , Figure 5 and Figure 6 It should be noted that, Figure 5 The first ratchet portion 1333 engages with the second ratchet portion 1212, and the third ratchet portion 1334 separates from the fourth ratchet portion 141. Figure 6 In this configuration, the first ratchet portion 1333 is separated from the second ratchet portion 1212, and the third ratchet portion 1334 is engaged with the fourth ratchet portion 141. According to some embodiments of this application, the distance between the opposite sides of the first ratchet portion 1333 and the third ratchet portion 1334 is greater than the distance between the second ratchet portion 1212 and the fourth ratchet portion 141.

[0109] The first ratchet portion 1333 is located on the side of the boss 1332 facing the filter assembly 120, and the third ratchet portion 1334 is located on the side of the boss 1332 facing the rotating wheel 140. The distance between their opposite sides is greater than the distance between the second ratchet portion 1212 on the filter assembly 120 and the fourth ratchet portion 141 on the rotating wheel 140. This distance can be achieved by rationally designing the size of the boss 1332 and the mounting position of the ratchet portions on the boss 1332 and the corresponding components (filter assembly 120, rotating wheel 140). For example, the distance requirement can be met by adjusting the thickness of the boss 1332 and the relative position of the ratchet portions on the surface of the boss 1332.

[0110] In actual operation, due to the aforementioned spacing relationship, when the driver 131 is not working, one of the two pairs—the first ratchet portion 1333 and the second ratchet portion 1212, or the third ratchet portion 1334 and the fourth ratchet portion 141—will inevitably have a certain engagement height (degree of contact). When the driver 131 is activated, the boss 1332 begins to rotate. Taking rotation in the first direction as an example, if the first ratchet portion 1333 and the second ratchet portion 1212 have a certain engagement height at startup, as the boss 1332 rotates, the meshing force between the ratchets will generate a component force that drives the boss 1332 toward the filter assembly 120, making the first ratchet portion 1333 and the second ratchet portion 1212 mesh more deeply. At the same time, due to the difference in spacing, the third ratchet portion 1334 and the fourth ratchet portion 141 will gradually separate. If, during startup, the third ratchet portion 1334 and the fourth ratchet portion 141 have a certain engagement height, because the ratchet teeth of the third ratchet portion 1334 and the fourth ratchet portion 141 face opposite directions, during rotation, the fourth ratchet portion 141 will exert a driving force on the third ratchet portion 1334 in a direction away from the rotating wheel 140. This force pushes the third ratchet portion 1334 and the fourth ratchet portion 141 to separate, while simultaneously causing the first ratchet portion 1333 and the second ratchet portion 1212 to gradually engage. When the boss 1332 rotates in the second direction, its principle is similar to that of rotating in the first direction, except that the corresponding movement and power transmission switching are achieved according to the different ratchet engagement conditions.

[0111] By setting the distance between the opposite sides of the first ratchet portion 1333 and the third ratchet portion 1334 to be greater than the distance between the second ratchet portion 1212 and the fourth ratchet portion 141, the automatic movement of the transmission component 133 and the automatic switching of power transmission are achieved by utilizing the meshing characteristics and meshing force of the ratchet. This design eliminates the need for additional complex control mechanisms to control the position of the transmission component 133, simplifying the system structure and reducing costs. Simultaneously, it can automatically transmit power to the corresponding components according to different working requirements, improving the efficiency and reliability of the sewage tank 100 and further enhancing its overall performance and practicality.

[0112] Please see Figure 4 , Figure 5 and Figure 6 According to some embodiments of this application, the filter assembly 120 may be disposed on the lower side of the rotating wheel 140, and an elastic member 150 may be connected between the filter assembly 120 and the shaft 1331. The elastic member 150 may apply an elastic force toward the rotating wheel 140 to the shaft 1331.

[0113] The filter assembly 120 is located below the rotor 140. It can be understood that the bottom of the sewage tank 100 contains sewage. In order to prevent sewage from entering the cleaning equipment 1000, the flow channel 111 for suction is generally located at the top of the sewage tank 100. Therefore, on the axis of the flow channel 111, the filter assembly 120, as the core filter element, is located near the sewage surface. The rotor 140 is located above the filter assembly 120 to block water vapor passing through the filter assembly 120.

[0114] The elastic element 150 is connected between the filter assembly 120 and the shaft 1331, and its function is to apply an elastic force toward the rotating wheel 140 to the shaft 1331. The elastic element 150 can be a spring, elastic rubber, etc. For example, the elastic element 150 can be a helical compression spring. One end of the elastic element 150 is connected to the bracket of the filter assembly 120, and the other end is connected to the shaft 1331. Specifically, the end of the shaft 1331 facing the filter assembly 120 can be provided with a positioning groove. The end of the elastic element 150 facing the shaft 1331 extends into the positioning groove and abuts against the bottom of the positioning groove. The positioning groove is provided to ensure the stability of the installation of the elastic element 150 and to prevent the elastic element 150 from shifting.

[0115] In actual operation, since the filter assembly 120 is below and the rotating wheel 140 is above, the transmission component 133, under its own gravity, is more likely to engage with the ratchet portion (i.e., the first ratchet portion 1333 and the second ratchet portion 1212) on the filter assembly 120. By providing the elastic element 150, when the output end of the drive assembly 130 rotates in the second direction and the transmission component 133 needs to engage with the ratchet portion (i.e., the third ratchet portion 1334 and the fourth ratchet portion 141) on the rotating wheel 140, the elastic force applied by the elastic element 150 can overcome the influence of the gravity of the transmission component 133, pushing the shaft 1331 and the boss 1332 to move upward, so that the third ratchet portion 1334 and the fourth ratchet portion 141 are tightly engaged, ensuring stable power transmission.

[0116] An elastic element 150 is installed between the filter assembly 120 and the shaft 1331, applying an elastic force towards the rotating wheel 140. This effectively solves the problem of the transmission component 133 being unable to stably mesh with the upper rotating wheel 140 due to gravity. This design ensures the stability of power transmission between the transmission component 133 and the rotating wheel 140 when the drive assembly 130 rotates in the second direction, enabling the rotating wheel 140 to reliably rotate and intercept water vapor, thus improving the reliability of the sewage tank 100's water vapor treatment function. Simultaneously, this structure is simple and low-cost. With the assistance of the elastic element 150, the meshing mechanism between the transmission component 133 and different components is optimized, further enhancing the overall working performance and practicality of the sewage tank 100.

[0117] Please see Figure 5 and Figure 6According to some embodiments of this application, the rotating wheel 140 may be sleeved on the shaft 1331.

[0118] The rotating wheel 140 is fitted around the shaft 1331. This fitted relationship allows the rotating wheel 140 to rotate around the shaft 1331, and the shaft 1331 serves as a support and guide structure for the rotation of the rotating wheel 140. The inner diameter of the rotating wheel 140 is matched with the outer diameter of the shaft 1331 to ensure that the rotating wheel 140 can be stably fitted onto the shaft 1331 while also allowing for flexible rotation. For example, the outer diameter of the shaft 1331 can be designed to be slightly smaller than the diameter of the inner diameter of the rotating wheel 140, so that there is a certain gap between the rotating wheel 140 and the shaft 1331 after the rotating wheel 140 is fitted onto the shaft 1331, ensuring smooth rotation.

[0119] The rotating wheel 140 is sleeved outside the shaft 1331. On the one hand, this allows the rotation axis of the rotating wheel 140 to coincide with the axis of the shaft 1331, thus maintaining coaxiality with the rotation axes of the drive shaft 132 and the filter assembly 120, ensuring the stability and efficiency of power transmission. On the other hand, this sleeved arrangement facilitates the power coupling connection between the transmission component 133 and the rotating wheel 140. When the shaft 1331 moves axially to the position where it engages with the rotating wheel 140, the power of the drive shaft 132 can be transmitted to the rotating wheel 140 through the engagement of the third ratchet portion 1334 on the boss 1332 and the fourth ratchet portion 141 on the rotating wheel 140, driving the rotating wheel 140 to rotate.

[0120] Please see Figure 5 and Figure 6 According to some embodiments of this application, the filter assembly 120 may be a groove-shaped configuration with a recessed end facing the inlet of the flow channel 111, and the roller 140 may be disposed in the groove formed by the filter assembly 120.

[0121] The filter assembly 120 has a groove-shaped structure that is recessed towards the inlet end of the flow channel 111. On the one hand, this increases the filtration area of ​​the filter assembly 120, allowing more wastewater and impurities to come into contact with the filter screen 122, thereby improving the filtration effect. On the other hand, the shape of the groove can guide the wastewater and impurities, making them more concentrated and intercepted by the filter screen 122. The depth and width of the groove can be designed according to actual needs; for example, the depth can be set to 5 cm to 10 cm, and the width can be adapted to the size of the flow channel 111.

[0122] The impeller 140 is positioned within the groove formed by the filter assembly 120, making the overall structure of the wastewater tank 100 more compact and facilitating the impeller 140's processing of the airflow after passing through the filter assembly 120. The impeller 140's placement within the groove allows for better utilization of airflow, and the blades 142 more effectively agitate and throw the water carried in the airflow against the side wall of the filter assembly 120. The diameter and size of the impeller 140 must be compatible with the size of the groove to ensure that the impeller 140 can rotate freely within the groove and maintain a suitable gap with the filter assembly 120.

[0123] The grooved design of the filter assembly 120 increases the filtration area and improves the filtration effect, enabling it to more effectively intercept impurities in wastewater. The rotor 140 is positioned within the groove, making the wastewater tank 100 more compact and facilitating its handling of water vapor, thus improving its efficiency in intercepting water vapor in the airflow. This layout makes the wastewater tank 100 more functional, better meeting the needs of the cleaning equipment 1000 for wastewater filtration and water vapor treatment, and enhancing the overall performance and practicality of the wastewater tank 100. Furthermore, the compact structural design also helps reduce the volume of the wastewater tank 100, improving the space utilization of the cleaning equipment 1000.

[0124] Please see Figure 6 and Figure 7 According to some embodiments of this application, the filter assembly 120 may include a filter holder 121 and a filter 122. The filter holder 121 is rotatably mounted in the flow channel 111. The filter holder 121 is provided with a sleeve 1211 extending along its rotation axis. A second ratchet portion 1212 is provided at one end of the sleeve 1211 facing the boss 1332. The end of the shaft 1331 facing the filter holder 121 extends into the sleeve 1211. The filter 122 may cover the filter holder 121.

[0125] The filter support 121 is rotatably installed within the flow channel 111 and serves as the support structure for the filter assembly 120. The filter support 121 can be made of high-strength, corrosion-resistant plastic or metal to ensure that it will not deform or be damaged during long-term use.

[0126] The filter holder 121 is provided with a sleeve 1211 extending along its rotation axis. The sleeve 1211 provides space for the insertion of the end of the shaft 1331 and serves as a mounting carrier for the second ratchet portion 1212. The inner diameter of the sleeve 1211 is slightly larger than the outer diameter of the end of the shaft 1331 to ensure that the shaft 1331 can be smoothly inserted with sufficient room for movement. The second ratchet portion 1212 is located at the end of the sleeve 1211 facing the boss 1332 and is used to achieve power coupling with the first ratchet portion 1333 on the boss 1332. The tooth profile and dimensions of the second ratchet portion 1212 should match those of the first ratchet portion 1333 to ensure good meshing. The end of the shaft 1331 extending towards the filter screen support 121 extends into the sleeve 1211, which guides the movement of the shaft 1331, making it more stable during axial movement and ensuring accurate engagement of the first ratchet portion 1333 and the second ratchet portion 1212. Simultaneously, it also helps ensure that the rotation axes of the shaft 1331, the filter screen support 121, and the rotating wheel 140 are coaxial.

[0127] The filter screen 122 covers the filter screen support 121 and filters sewage and impurities entering the sewage tank 100. The material of the filter screen 122 can be selected according to filtration requirements, such as stainless steel filter screen 122, nylon filter screen 122, etc., with different pore sizes and filtration precision. The filter screen 122 can be fixed to the filter screen support 121 by snap-fit, adhesive, or other methods to ensure that it will not fall off when the filter screen support 121 rotates.

[0128] The filter assembly 120 adopts a combined structure of filter support 121 and filter 122. The design of the sleeve 1211 on the filter support 121 and the cooperation between the shaft 1331 and the sleeve 1211 improve the stability and accuracy of power transmission. The end of the shaft 1331 extends into the sleeve 1211, providing guidance for the movement of the shaft 1331, enabling the first ratchet portion 1333 and the second ratchet portion 1212 to reliably engage and disengage, ensuring the reliability of the rotation of the filter assembly 120. At the same time, this structural design facilitates the installation and replacement of the filter 122, improving the maintenance convenience of the sewage tank 100.

[0129] This application also provides a cleaning system.

[0130] The cleaning system includes a cleaning base station and a cleaning device 1000 as described in any of the above technical solutions. The cleaning device 1000 is cleaned or decontaminated when it is docked at the cleaning base station.

[0131] As a supporting facility for the entire cleaning system, the cleaning base station is mainly responsible for cleaning and discharging wastewater from the cleaning equipment 1000. It typically contains a wastewater collection tank to centrally collect wastewater discharged from the cleaning equipment 1000; it is equipped with a high-pressure washing device, brush cleaning components, etc., to perform comprehensive cleaning of the surface and internal components of the cleaning equipment 1000; it may also integrate a control system that interacts with the cleaning equipment 1000 through sensors to intelligently determine the cleaning and wastewater discharge process.

[0132] The cleaning equipment 1000 is the cleaning equipment 1000 of the above-described technical solution, possessing the technical features and effects of the cleaning equipment 1000 described above, which will not be repeated here. The cleaning equipment 1000 includes a specially designed sewage tank 100 and a sewage suction pump 200. The sewage tank 100 achieves efficient filtration and self-cleaning through structures such as a rotatable filter assembly 120 and a rotating wheel 140; the sewage suction pump 200 ensures the effective suction of sewage and impurities.

[0133] The cleaning equipment 1000 can include floor scrubbers, robot vacuums, vacuum cleaners, floor scrubbers, etc.

[0134] After the cleaning equipment 1000 docks at the cleaning base station, it can interact with the base station through various connection methods. For physical connection, the cleaning equipment 1000 can have a sewage discharge port on its bottom, precisely connecting to the sewage pipes of the cleaning base station to ensure smooth sewage discharge. Additionally, some equipment also has charging contacts or charging ports to connect to the base station's charging device for charging. For data interaction, the cleaning equipment 1000 and the cleaning base station connect via wireless communication technologies such as Bluetooth and Wi-Fi. The cleaning equipment 1000 reports its status to the base station (such as the capacity of the sewage tank 100, equipment fault information, etc.), while the base station sends cleaning commands to the cleaning equipment 1000 and controls the cleaning process.

[0135] In actual operation, after the cleaning equipment 1000 completes its cleaning task, the operator guides it to the corresponding location of the cleaning base station, or the cleaning equipment 1000 autonomously docks via its automatic navigation function. The cleaning equipment 1000 establishes a connection with the cleaning base station, and the wastewater in the wastewater tank 100 is discharged into the wastewater collection tank of the cleaning base station via a drain pipe. After the wastewater is discharged, the control system of the cleaning base station initiates the corresponding cleaning program based on the type and degree of dirt on the cleaning equipment 1000. For example, for a robotic vacuum cleaner, the base station first rinses the robot's surface and bottom suction port with a high-pressure nozzle, and then uses a rotating brush to clean the roller brush; for a commercial floor scrubber, the base station's large brush assembly and high-pressure washing system work together to deeply clean the vehicle body, roller brush, and the exterior of the wastewater tank 100. After cleaning, the cleaning equipment 1000 can obtain power from the cleaning base station to prepare for the next cleaning task.

[0136] This cleaning system enhances the ease of use and maintenance efficiency of the cleaning equipment 1000 by combining a cleaning base station with the cleaning equipment itself. The advanced wastewater tank 100 design of the cleaning equipment 1000, combined with the automated cleaning and wastewater discharge functions of the cleaning base station, reduces manual intervention, lowers the user's barrier to entry, and reduces maintenance costs. The compatibility with various types of cleaning equipment 1000 broadens the system's application scenarios, meeting both daily household cleaning needs and large-scale cleaning requirements in commercial settings.

[0137] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0138] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0139] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0140] In the description of this application, "multiple" means two or more.

[0141] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0142] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0143] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0144] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A sewage tank, characterized in that, include: The enclosure has a flow channel for air to escape; The filter assembly is rotatably installed within the flow channel; The drive component is installed in the flow channel. The output end of the drive component can be dynamically coupled to the filter assembly to drive the filter assembly to rotate.

2. The sewage tank according to claim 1, characterized in that, When the output end of the drive component rotates in the first direction, it cooperates with the filter assembly to drive the filter assembly to rotate. When the output end of the drive component rotates in the second direction, it separates from the filter assembly. The first direction and the second direction are opposite.

3. The sewage tank according to claim 2, characterized in that, The driver components include: The driver is installed within the flow channel; The transmission component is poweredly coupled to the driver. The transmission component is provided with a first ratchet part, and the filter assembly is provided with a second ratchet part. When the output end of the drive assembly rotates in a first direction, the first ratchet part and the second ratchet part mesh.

4. The sewage tank according to claim 2, characterized in that, Also includes: The impeller is rotatably installed in the flow channel and is located on the side of the filter assembly facing the outlet end of the flow channel. The impeller is equipped with blades, and when the output end of the drive assembly rotates in the second direction, it cooperates with the impeller to drive the impeller to rotate.

5. The sewage tank according to claim 4, characterized in that, Also includes: The driver is installed within the flow channel; The transmission component is poweredly coupled to the output end of the driver. The transmission component is provided with a third ratchet part, and the rotating wheel is provided with a fourth ratchet part. When the output end of the drive assembly rotates in the second direction, the third ratchet part and the fourth ratchet part mesh.

6. The sewage tank according to claim 5, characterized in that, The transmission component is movably disposed between the filter assembly and the impeller, and the driver is poweredly coupled to the filter assembly or the impeller through the transmission component.

7. The sewage tank according to claim 6, characterized in that, The output end of the driver is provided with a drive shaft. The transmission component is dynamically coupled to the drive shaft and is movably arranged along the axial direction of the drive shaft. The rotation axes of the drive shaft, transmission component, filter assembly and wheel are arranged coaxially.

8. The sewage tank according to claim 7, characterized in that, The transmission components include: The shaft is dynamically coupled to the drive shaft, and the shaft is movable along the axial direction of the drive shaft; A boss is provided on the periphery of the shaft. The boss is located between the rotating wheel and the filter assembly. A first ratchet part is provided on the side of the boss facing the filter assembly. A second ratchet part that can be power-coupled with the first ratchet part is provided on the side of the filter assembly facing the boss. A third ratchet part is provided on the side of the boss facing the rotating wheel. A fourth ratchet part is provided on the side of the rotating wheel facing the boss. The ratchet teeth of the first ratchet section and the third ratchet section face opposite directions.

9. The sewage tank according to claim 8, characterized in that, The distance between the opposite sides of the first ratchet portion and the third ratchet portion is greater than the distance between the second ratchet portion and the fourth ratchet portion.

10. The sewage tank according to claim 8, characterized in that, The filter assembly is located on the underside of the rotating wheel. An elastic element connects the filter assembly and the shaft, and the elastic element applies an elastic force to the shaft toward the rotating wheel.

11. The sewage tank according to any one of claims 8-10, characterized in that, The wheel is sleeved outside the shaft.

12. The sewage tank according to any one of claims 8-10, characterized in that, The filter assembly includes: The filter screen support is rotatably installed in the flow channel. The filter screen support is provided with a sleeve extending along its rotation axis. The second ratchet part is located at the end of the sleeve facing the boss, and the end of the shaft facing the filter screen support extends into the sleeve. The filter screen is covered by the filter screen support.

13. The sewage tank according to any one of claims 4-10, characterized in that, The filter assembly is a groove-shaped structure recessed towards the inlet end of the flow channel, and the rotating wheel is located in the groove formed by the filter assembly.

14. A cleaning device, characterized in that, include: The sewage tank as described in any one of claims 1-13; The sewage suction pump is connected to the flow channel.

15. A cleaning system, characterized in that, include: Clean base stations; The cleaning equipment as claimed in claim 14 is used for cleaning or decontamination when it is docked at a cleaning base station.

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