Cleaning base station and cleaning system

Abstract

The utility model provides a cleaning base station and a cleaning system, the cleaning base station further comprises a shell and a suction assembly, the shell is provided with a sewage inlet and a sewage outlet, and a sewage channel is formed between the sewage inlet and the sewage outlet; the suction assembly is arranged in the shell and comprises a sewage pump, the sewage pump is provided with a suction part, and the suction part is arranged in the sewage channel. According to the cleaning base station, sewage in the cleaning system is treated in a direct suction mode, so that a vacuum motor and even a sewage tank do not need to be arranged in the base station, the complexity of the cleaning base station is simplified, and the size of the cleaning base station is reduced; the base station of the cleaning system is easier to carry and place, and the manufacturing cost and the maintenance cost of the cleaning base station can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, and in particular to a cleaning base station and a cleaning system. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] At present, the sewage tank of the cleaning system is arranged in the base station. At the same time, a vacuum motor is also arranged in the base station. The vacuum motor is used to form a vacuum in the sewage tank, so that the sewage in the sewage tank is discharged from the sewage tank under the pressure difference between the inside and outside of the sewage tank. Although the base station of this cleaning system can achieve the avoidance of manual dumping of the sewage tank, the base station has a complex structure and a large size. More importantly, the cost of the base station is high and the maintenance cost is high. Utility Model Content

[0004] The purpose of the utility model is to at least solve the technical problem of complex base station structure. This purpose is achieved through the following technical solutions:

[0005] A first aspect of the utility model provides a cleaning base station, the cleaning base station further comprising:

[0006] A housing, wherein a sewage inlet and a sewage outlet are provided on the housing, and a sewage channel is formed between the sewage inlet and the sewage outlet;

[0007] A suction component is arranged in the shell, and the suction component includes a sewage pump. The sewage pump has a suction part, and the suction part is arranged in the sewage channel.

[0008] The cleaning base station of the utility model adopts a direct suction method to process the sewage in the cleaning system, so there is no need to set a vacuum motor in the base station, and even no need to set a sewage tank in the cleaning base station, thereby simplifying the complexity of the cleaning base station, reducing the size of the cleaning base station, making the base station of the cleaning system easier to carry and place, and reducing the manufacturing cost and maintenance cost of the cleaning base station.

[0009] In addition, the cleaning base station according to the utility model may also have the following additional technical features:

[0010] In some embodiments of the present invention, the cleaning base station further includes a filter component, and the filter component is disposed at the sewage inlet.

[0011] In some embodiments of the present invention, the sewage pump includes any one of a centrifugal pump, an axial flow pump and a mixed flow pump.

[0012] A second aspect of the present utility model provides a cleaning system, the cleaning system comprising a cleaning base station as described in any one of the above, the cleaning system further comprising:

[0013] A cleaning device, wherein the cleaning device is provided with a sewage tank and a sewage outlet, the sewage outlet is communicated with the accommodating cavity of the sewage tank, and the sewage inlet is used to be connected and communicated with the sewage outlet;

[0014] A sealing component is used to seal the gap between the sewage outlet and the sewage inlet.

[0015] In some embodiments of the present invention, the cleaning system further comprises a connecting assembly, wherein the connecting assembly is used to connect the sewage outlet and the sewage inlet, and to make the sewage outlet and the sewage inlet detachably connected.

[0016] In some embodiments of the present utility model, the cleaning device further comprises a suction pipe, one end of which is connected to the sewage inlet, and the other end of which is arranged in the accommodating cavity of the sewage tank.

[0017] In some embodiments of the present invention, at least a portion of the bottom of the sewage tank is inclined, and the other end of the suction pipe extends to the bottom end of the bottom.

[0018] In some embodiments of the present invention, the bottom of the sewage tank is funnel-shaped, and the other end of the suction pipe is arranged at the bottom end of the bottom.

[0019] In some embodiments of the present invention, the cleaning device further comprises a spray assembly, wherein the spray assembly is provided with at least one spray port.

[0020] The spray port is arranged in the accommodating cavity of the sewage tank and faces the side wall of the accommodating cavity.

[0021] In some embodiments of the present invention, the spray assembly includes a plurality of spray ports, and the plurality of spray ports face different directions respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 It is a flow chart of the drainage process of the cleaning system of the utility model;

[0024] Figure 2It is a schematic diagram of the structure of the cleaning system of the utility model, which shows a cleaning base station and a cleaning device;

[0025] Figure 3 A schematic diagram of the internal structure of a cleaning base station of the cleaning system of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the sewage pump of the cleaning system of the utility model, which shows the conical impeller type suction end;

[0027] Figure 5 A schematic diagram of the structure of a sewage tank of the cleaning system of the utility model;

[0028] Figure 6 for Figure 5 A cross-sectional view of

[0029] Figure 7 Another structural schematic diagram of a sewage tank of the cleaning system of the utility model;

[0030] Figure 8 for Figure 7 sectional view of .

[0031] Reference numerals

[0032] 100. Cleaning system;

[0033] 200. Clean the base station;

[0034] 210, housing; 211, sewage inlet; 212, sewage outlet; 213, sewage channel;

[0035] 220, suction assembly; 221, sewage pump; 222, conical impeller suction end; 2221, impeller; 223, sewage pipe;

[0036] 230, filter component;

[0037] 300. Cleaning device;

[0038] 310, sewage tank; 311, sewage outlet; 312, side wall; 313, funnel-shaped bottom; 314, concave bottom; 315, spray assembly; 3151, spray part; 3152, spray outlet; 3153, water pipe;

[0039] 320, sealing assembly;

[0040] 330, suction tube;

[0041] 340, floor brush assembly;

[0042] 350. Walking components. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0046] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0047] The cleaning system of the utility model comprises a cleaning device and a cleaning base station, wherein the cleaning device is used to clean dirt on the ground, and the cleaning base station is used to suck and discharge sewage in the cleaning device.

[0048] The cleaning system provided by the utility model arranges the sewage tank in the cleaning device. When the cleaning device is connected to the cleaning base station, the cleaning base station sucks and discharges the sewage in the sewage tank in the cleaning device.

[0049] Specifically, a sewage pump is provided in the cleaning base station, and the sewage in the sewage tank is discharged by the sewage pump in a direct pumping manner from the cleaning device.

[0050] Since a sewage tank is no longer provided in the cleaning base station of the cleaning system of the utility model, the cleaning base station is smaller in size, which facilitates the transportation of the cleaning base station, occupies less space, and brings a better user experience to the user.

[0051] The cleaning base station of the utility model adopts a sewage pump to directly pump out sewage. Compared with the sewage discharge method of vacuuming the sewage tank in the prior art, its structure is simpler and there is no need to completely seal the sewage tank. Therefore, it is more convenient for both processing and manufacturing and later maintenance of the cleaning base station.

[0052] Among them, the sewage pump in the cleaning base station includes any one of a centrifugal pump, an axial flow pump and a mixed flow pump.

[0053] It is understandable that after the cleaning device in the cleaning system cleans the dirt on the ground, a large amount of debris is collected in the sewage tank. Using an ordinary gear water pump to discharge sewage can easily cause damage to the water pump, and it is difficult to discharge all the sewage with debris. Therefore, the usual practice in the prior art is to vacuum the sewage tank, use the pressure difference between the inside and outside of the sewage pump, set up a separate sewage pipe, and discharge the sewage mixed with debris.

[0054] The cleaning system of the utility model improves the sewage pump in the cleaning base station and overcomes the technical prejudice that the sewage in the sewage tank cannot be directly extracted by arranging a sewage discharge channel suitable for the sewage with debris to pass through.

[0055] The cleaning system of the present invention is described in detail below in conjunction with the accompanying drawings. It should be noted that the accompanying drawings and embodiments are only used to explain the present invention and cannot be understood as limiting the present invention.

[0056] Figure 1 The flowchart of the drainage process of the cleaning system of the utility model is as follows: Figure 1 As shown, a sewage tank 310 is provided in the cleaning device 300 of the cleaning system 100, one end of the suction pipe 330 extends into the sewage tank 310, and the other end is connected to the inlet of the sewage pump 221 in the cleaning base station 200. Under the action of the sewage pump 221, the sewage mixed with dirt in the sewage tank 310 is discharged through the suction pipe 330 and the sewage pipe 223. It can be seen from this embodiment that the cleaning system 100 provided by the utility model, wherein the cleaning base station 200 adopts a direct suction method to discharge the sewage in the sewage tank 310.

[0057] The cleaning system of this embodiment discharges sewage in a simpler and easier manner, abandoning the practice of vacuuming the sewage tank 310 in the prior art, which has obvious advantages.

[0058] Figure 3 The internal structure diagram of the cleaning base station of the cleaning system of the utility model is as follows: Figure 3 As shown, the cleaning base station 200 of the cleaning system 100 includes a housing 210 and a suction assembly 220, wherein a sewage inlet 211 and a sewage outlet 212 are provided on the housing 210, and a sewage channel 213 is formed between the sewage inlet 211 and the sewage outlet 212. Figure 3 As indicated by the arrows in FIG. 2 , sewage enters the sewage channel 213 at the sewage inlet 211 and is discharged from the sewage channel 213 at the sewage outlet 212 .

[0059] The sewage can flow in the sewage channel 213 due to the pumping action of the sewage pump 221 in the suction assembly 220. Figure 3As shown, the sewage pump 221 in the suction assembly 220 has a conical impeller suction end 222, which extends from top to bottom into the sewage channel 213. The conical impeller suction end 222 is arranged in the sewage channel 213, which is conducive to forming a larger flow area in the sewage channel 213, so that sewage mixed with dirt can flow smoothly in the sewage channel 213.

[0060] In addition, the conical impeller suction end 222 is arranged from top to bottom in the sewage channel 213. During the operation of the sewage pump 221, even if some debris is adhered to the impeller 2221, under the action of gravity and the flow of sewage, the conical impeller suction end 222 is more likely to get rid of the entanglement of the debris, and some dirt will not accumulate on the conical impeller suction end 222 of the sewage pump 221.

[0061] Therefore, the cleaning system 100 in this embodiment improves the sewage pump 221 therein and improves the installation method of the conical impeller suction end 222 of the sewage pump 221, so that the cleaning base station 200 therein can suck the sewage in a direct suction manner.

[0062] It needs to be further explained that if Figure 3 As shown, at the position of the conical impeller suction end 222 of the sewage pump 221, the sewage in the sewage channel 213 can flow freely in the flow channel as indicated by the arrow, reducing the possibility of sewage clogging.

[0063] Under the suction action of the sewage pump 221 , the sewage flows upward below the conical impeller suction end 222 and is pumped toward the sewage outlet 212 .

[0064] In one embodiment of the utility model, a filter component 230 is also provided at the sewage inlet 211 of the cleaning base station 200. The filter component 230 can filter the sewage and collect filterable dirt in the sewage in the filter component 230, thereby reducing the impact of impurities in the sewage on the sewage pump 221 and avoiding blockage of the sewage channel 213.

[0065] The filter assembly 230 may be configured to be detachably connected to the housing 210 to facilitate regular cleaning of debris in the filter assembly 230 or regular replacement of the filter screen in the filter assembly 230 .

[0066] It is understandable that the filter assembly 230 can be provided in multiple numbers, and the multiple filter elements can filter the sewage in stages, and the filtering effect is more obvious.

[0067] The filtration accuracy of the filter element can also be selected according to actual needs, so that different types of particle size impurities in the sewage can be filtered.

[0068] Figure 4 The schematic diagram of the structure of the sewage pump of the cleaning system of the utility model shows a conical impeller suction end, such as Figure 4 As shown, the sewage pump 221 of the cleaning device 300 has a conical impeller suction end 222, wherein a plurality of impellers 2221 are arranged at the conical impeller suction end 222, and the plurality of impellers 2221 are evenly distributed along the rotation axis of the conical impeller suction end 222, and the plurality of impellers 2221 rotate to pump the sewage in the sewage channel 213 toward the sewage outlet 212.

[0069] exist Figure 4 In order to facilitate seeing the impeller 2221, the connecting piece of the conical impeller suction end 222 of the sewage pump 221 is separated from the impeller 2221. As indicated by the arrow, the sewage is sucked by the impeller 2221 at the inlet of the connecting piece and discharged at the sewage outlet 212 of the sewage channel 213.

[0070] In one embodiment of the utility model, the cleaning device 300 also includes a suction pipe 330, one end of the suction pipe 330 is connected to the sewage inlet 211 of the cleaning base station 200, and the other end extends into the accommodating cavity of the sewage tank 310. Under the suction action of the sewage pump 221, the sewage in the sewage tank 310 is sucked into the sewage channel 213 and pumped to the sewage outlet 212, and finally the sewage is discharged.

[0071] Figure 2 The schematic diagram of the cleaning system of the utility model shows a cleaning base station 200 and a cleaning device 300. Figure 2 As shown, the cleaning system 100 further includes a cleaning device 300 and a cleaning base station 200.

[0072] The cleaning device 300 is provided with a sewage tank 310 , wherein the sewage tank 310 can be arranged in front of the cleaning device 300 , or can be arranged at the rear of the cleaning device 300 .

[0073] A floor brush assembly 340 and a walking assembly 350 are provided below the sewage tank 310. Driven by the walking assembly 350, the entire cleaning device 300 moves along a predetermined track. At the same time, the floor brush assembly 340 cleans the ground that the cleaning device 300 passes. A joystick is also provided along the height direction of the sewage tank 310 to facilitate the user to operate the cleaning device 300 through the joystick. The provision of the joystick can increase the overall height of the cleaning device 300, which is more in line with the user's usage habits.

[0074] like Figure 2As shown, the cleaning system 100 further includes a cleaning base station 200. When the cleaning device 300 returns to the cleaning base station 200, it is connected to the cleaning base station 200, and the cleaning base station 200 sucks and discharges the sewage in the sewage tank 310 of the cleaning device 300.

[0075] The cleaning device 300 is provided with a sewage tank 310 and a sewage outlet 311, and the sewage outlet 311 is connected to the accommodating cavity of the sewage tank 310. When the cleaning device 300 returns to the cleaning base station 200, the sewage outlet 311 of the cleaning device 300 is connected to the sewage inlet 211 of the cleaning base station 200, so that the sewage pump 221 in the cleaning base station 200 can suck the sewage in the sewage tank 310.

[0076] Among them, the cleaning device 300 also includes a sealing component 320, which is used to seal the gap between the sewage outlet 311 and the sewage inlet 211. After the sewage inlet 211 of the cleaning base station 200 and the sewage outlet 311 of the cleaning device 300 are sealed, it is beneficial to suck the sewage in the sewage tank 310.

[0077] Among them, the sewage outlet 311 of the cleaning device 300 and the sewage inlet 211 of the cleaning base station 200 are connected by a connecting component. The connecting component can be set to a snap, a flange, etc. In order to facilitate the smooth separation of the cleaning device 300 and the cleaning base station 200, the connecting component should set the sewage outlet 311 of the cleaning device 300 and the sewage inlet 211 of the cleaning base station 200 as a detachable connection.

[0078] from Figure 2 It can also be seen that the volume of the cleaning base station 200 is much smaller than that of the cleaning device 300, so that the cleaning base station 200 can be placed in a limited space, reducing the troubles caused to the user by the cleaning base station 200 being too large.

[0079] Figure 5 A schematic diagram of the structure of the sewage tank of the cleaning system of the utility model. Figure 6 for Figure 5 A cross-sectional view of Figure 5 and Figure 6 As shown, the bottom of the accommodating cavity of the sewage tank 310 is funnel-shaped, and the funnel-shaped bottom can collect the dirt in the sewage. Under the action of gravity, when the debris in the sewage is concentrated at the funnel-shaped bottom, one end of the suction pipe 330 is connected to the sewage inlet 211 of the cleaning base station 200, and the other end extends to the lower end of the funnel-shaped bottom 313 of the sewage tank 310, which can discharge the dirt concentrated at the bottom, which is beneficial to keep the interior of the sewage tank 310 clean.

[0080] like Figure 5 and Figure 6As shown, the cleaning device 300 also includes a spray component 315, and the spray component 315 is provided with at least one spray port 3152. The spray port 3152 is provided in the accommodating cavity of the sewage tank 310 and faces the side wall 312 of the accommodating cavity. Water is sprayed on the side wall 312 of the sewage tank 310 through the spray port 3152, so that the inner wall of the sewage tank 310 can be cleaned and the dirt remaining on the side wall 312 of the sewage tank 310 can be reduced.

[0081] It can be understood that after the spray port 3152 sprays the side wall 312 of the sewage tank 310, the sewage will gather at the funnel-shaped bottom, and the sewage in the funnel-shaped bottom will be sucked and discharged through the sewage pump 221 and the suction pipe 330. After the containing cavity of the sewage tank 310 is cleaned several times, it is beneficial for the sewage tank 310 to maintain a high degree of cleanliness.

[0082] Among them, a plurality of spray ports 3152 may be arranged along the circumference of the sewage tank 310 , so that the plurality of spray ports 3152 can spray and clean the side walls 312 in different directions, and dirt in every corner of the sewage tank 310 is cleaned away.

[0083] In order to clean different types of dirt, clean water with a certain pressure can be delivered to the water pipe 3153 connected to the spray port 3152. Under the action of a certain water pressure, the dirt remaining on the inner wall of the sewage tank 310 can be reduced; wherein, the size of the water pressure should be specifically determined according to the volume of the sewage tank 310 and the size of the spray port 3152.

[0084] Figure 7 FIG. 1 is another structural schematic diagram of the sewage tank 310 of the cleaning system 100 of the present invention. Figure 8 for Figure 7 A cross-sectional view of Figure 7 and Figure 8 As shown, in one embodiment of the present invention, at least part of the bottom of the accommodating cavity of the sewage tank 310 is tilted, and the other end of the suction pipe 330 extends to the bottom end of the tilted bottom.

[0085] The bottom of the accommodating cavity of the sewage tank 310 can be set to be concave. The concave bottom 314 will force the dirt in the sewage to gather at the lower edge of the side wall 312. The other end of the suction pipe 330 should be set at the lower edge of the side wall 312 of the sewage tank 310 to suck the gathered dirt.

[0086] The bottom of the sewage tank 310 can also be tilted to one side, which is conducive to the dirt in the sewage to gather on one side of the bottom of the sewage tank 310. The other end of the suction pipe 330 is extended to the bottom end of the bottom of the sewage tank 310, which can also centrally process the dirt gathered on one side of the bottom of the sewage tank 310.

[0087] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the cleaning device 300 further includes a spray assembly 315, and the spray assembly 315 is provided with at least one spray port 3152, and the spray port 3152 is provided in the receiving cavity of the sewage tank 310 and faces the side wall 312 of the receiving cavity. When the cleaning water is sprayed on the side wall 312 of the sewage tank 310 through the spray port 3152, the sewage on the side wall 312 is washed away and concentrated at the lower edge of the side wall 312.

[0088] Cleaning water with a certain pressure may also be delivered through the water delivery pipe 3153 , and the cleaning water with a certain pressure can clean the side wall 312 of the sewage tank 310 more cleanly.

[0089] It is understandable that the spray member 3151 in the spray assembly 315 can be provided with a plurality of spray ports 3152 , and the spray ports 3152 are arranged opposite to the side wall 312 , so that the side wall 312 of the sewage tank 310 can be cleaned from top to bottom.

[0090] When the side wall 312 of the sewage tank 310 is at a certain angle to the vertical direction, the spray port 3152 arranged opposite to the side wall 312 can clean the inclined side wall 312, and the dirt remaining on the side wall 312 is washed to the bottom of the sewage tank 310 under the flushing of clean water.

[0091] The bottom of the sewage tank 310 in the cleaning device 300 in this embodiment is tilted, so that the suction pipe 330 can be arranged at the edge of the sewage tank 310 close to the side wall 312 to avoid interference between the suction pipe 330 and the spray assembly 315.

[0092] In summary, the cleaning system 100 provided by the utility model improves the cleaning base station 200, and the sewage tank 310 is no longer arranged in the cleaning base station 200. The sewage is discharged by direct suction. Such improvement can reduce the overall volume of the outside of the cleaning base station 200, which is beneficial to the transportation and prevention of the cleaning base station 200 and no longer occupies a large space.

[0093] Furthermore, the cleaning base station 200 no longer has a vacuum device, so its structure is simpler, which is conducive to processing, manufacturing and subsequent maintenance.

[0094] The cleaning system 100 of the utility model can clean the sewage tank 310 of the cleaning device multiple times to ensure the cleanliness of the interior of the sewage tank 310. The spray component 315 cooperates with the sewage pump 221 to discharge the sewage in time after cleaning the sewage tank 310.

[0095] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to

[0096] Here, any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in this utility model should be included in the protection scope of this utility model. Therefore, the protection scope of this utility model should be based on the protection scope of the claims.

Claims

1. A cleaning base station, characterized in that: The cleaning base station comprises: A housing, wherein a sewage inlet and a sewage outlet are provided on the housing, and a sewage channel is formed between the sewage inlet and the sewage outlet; A suction component is arranged in the shell, and the suction component includes a sewage pump. The sewage pump has a suction part, and the suction part is arranged in the sewage channel.

2. The cleaning base station according to claim 1, characterized in that: The cleaning base station further comprises a filter assembly, and the filter assembly is arranged at the sewage inlet.

3. The cleaning base station according to claim 1, characterized in that: The sewage pump includes any one of a centrifugal pump, an axial flow pump and a mixed flow pump.

4. A cleaning system, characterized in that: The cleaning system comprises the cleaning base station according to any one of claims 1 to 3, and the cleaning system further comprises: A cleaning device, wherein the cleaning device is provided with a sewage tank and a sewage outlet, the sewage outlet is communicated with the accommodating cavity of the sewage tank, and the sewage inlet is used to be connected and communicated with the sewage outlet; A sealing component is used to seal the gap between the sewage outlet and the sewage inlet.

5. The cleaning system according to claim 4, characterized in that The cleaning system further comprises a connection assembly, which is used to connect the sewage outlet and the sewage inlet, and enables the sewage outlet and the sewage inlet to be detachably connected.

6. The cleaning system according to claim 4, characterized in that The cleaning device also includes a suction pipe, one end of which is connected to the sewage inlet, and the other end of which is arranged in the accommodating cavity of the sewage tank.

7. The cleaning system according to claim 6, characterized in that At least a portion of the bottom of the sewage tank is inclined, and the other end of the suction pipe extends to the bottom end of the bottom.

8. The cleaning system according to claim 7, characterized in that The bottom of the sewage tank is funnel-shaped, and the other end of the suction pipe is arranged at the bottom end of the bottom.

9. The cleaning system according to any one of claims 4 to 8, characterized in that: The cleaning device also includes a spray assembly, wherein the spray assembly is provided with at least one spray port. The spray port is arranged in the accommodating cavity of the sewage tank and faces the side wall of the accommodating cavity.

10. The cleaning system according to claim 9, characterized in that The spray assembly includes a plurality of spray ports, and the plurality of spray ports face different directions respectively.

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