Water supply and drainage assembly and cleaning system

Abstract

The embodiment of the utility model provides a water supply and drainage assembly and a cleaning system. The water feeding and discharging assembly comprises a body, wherein a sewage cavity and a clear water cavity are formed in the body at intervals; the water flow pipeline comprises a water inlet pipeline communicated with the clear water inlet, a first pipeline communicated with the clear water inlet of the sewage cavity and a second pipeline communicated with the clear water cavity inlet; and the water distribution piece is connected with the water inlet pipeline, the first pipeline and the second pipeline, so that the water inlet pipeline is switched between a first state of communicating with the first pipeline and a second state of communicating with the second pipeline. The water inlet pipeline can be communicated with the first pipeline through the water diversion piece, clean water can enter the sewage tank when entering the sewage tank, the sewage tank is cleaned, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of cleaning electrical appliances, and more specifically to a water upper and lower water component and a cleaning system. Background Art

[0002] The cleaning system is generally equipped with a base station with an automatic cleaning rag function. In order to reduce the trouble of users adding water and pouring water, a water supply and drainage component can be set in the base station. However, when the sewage is pumped into the sewage tank of the automatic water supply and drainage module, certain stains will remain on the wall of the sewage tank. The longer the time, the more stains accumulate. In severe cases, it may cause pipe blockage. Therefore, after using the water supply and drainage component for a period of time, the user needs to manually clean the stain. However, manual cleaning increases the user's workload and affects the user's experience. The relevant water supply and drainage components are equipped with a self-cleaning method for the sewage tank, but the structure is relatively complex and the cost is relatively high. Utility Model Content

[0003] In view of this, the utility model provides a water up and down assembly and a cleaning system to solve the technical problem of how to achieve self-cleaning of a sewage tank and simplify the structure.

[0004] The technical solution of the utility model is achieved in this way:

[0005] The utility model provides a water up and down assembly, comprising: a body, wherein a sewage chamber and a clean water chamber are arranged at intervals inside the body; a water flow pipeline, comprising: a water inlet pipeline connected to a clean water inlet, a first pipeline connected to the clean water inlet of the sewage chamber, and a second pipeline connected to the clean water chamber inlet; a water dividing piece, connecting the water inlet pipeline, the first pipeline and the second pipeline, so as to switch the water inlet pipeline between a first state in which the water inlet pipeline is connected to the first pipeline and a second state in which the water inlet pipeline is connected to the second pipeline.

[0006] In some embodiments, the water distribution component includes a three-way valve, the inlet of the three-way valve is connected to the water inlet pipeline, the three-way valve includes a first outlet and a second outlet that switch the communication relationship with the inlet, the first outlet is connected to the first pipeline, and the second outlet is connected to the second pipeline.

[0007] In some embodiments, the first pipeline passes through the clean water inlet of the sewage chamber to extend into the sewage chamber, and a water spraying member is disposed at one end of the first pipeline located in the sewage chamber.

[0008] In some embodiments, the water spray component has a water spray cavity in the interior thereof which is connected to the first pipeline, and the water spray component is provided with a plurality of water spray holes which are connected to the water spray cavity.

[0009] In some embodiments, the portion of the first pipeline in the sewage chamber extends in the vertical direction or extends at an acute angle to the vertical direction; the water spray holes are opened in the horizontal direction and / or a plurality of the water spray holes are evenly arranged around the vertical direction.

[0010] In some embodiments, the sewage chamber is further provided with a sewage chamber outlet, which is disposed at the bottom of the sewage chamber in the vertical direction, and the vertical distance from the water spraying member to the bottom is greater than or equal to 2 / 3 of the vertical height of the sewage chamber.

[0011] In some embodiments, the sewage chamber is further provided with a sewage inlet, a sewage float is arranged in the sewage chamber, and a height difference in the vertical direction between any two of the sewage inlet, the installation position of the sewage float and the water spraying member is less than the first distance.

[0012] In some embodiments, the sewage inlet of the sewage chamber and the clean water inlet of the sewage chamber are spaced apart by a second distance in the horizontal direction, and the second distance is greater than or equal to 1 / 2 of the extension length of the sewage chamber in the horizontal direction.

[0013] In some embodiments, one end of the second pipeline is connected to the water distribution member, and the other end is connected to the clean water chamber inlet, and the clean water chamber inlet is arranged at the bottom of the clean water chamber.

[0014] The utility model also provides a cleaning system, comprising: a cleaning device for cleaning a surface to be cleaned; a base station, the base station comprising any of the upper and lower water components described above; wherein the clean water chamber is used to provide clean water to the cleaning device, and the sewage chamber is used to collect sewage generated by the cleaning device.

[0015] The upper and lower water components provided in the embodiment of the utility model are provided with a water dividing piece to connect the water inlet pipeline, the first pipeline and the second pipeline, so as to switch the water inlet pipeline between a first state connected to the first pipeline and a second state connected to the second pipeline. The embodiment of the utility model arranges a water dividing piece on the water inlet pipeline, and when clean water enters, the water dividing piece can introduce clean water into the sewage tank to clean the sewage tank; on the one hand, the self-cleaning of the sewage tank is realized; on the other hand, the water dividing piece is arranged on the water inlet pipeline, and the water inlet pipeline is utilized without the need to arrange an additional pipeline from the clean water storage container to the sewage tank, so the structure is simple and it is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the upper and lower water components in the embodiment of the utility model when the bottom is facing upward;

[0017] Figure 2 This is a longitudinal cross-sectional view of the upper and lower water components in the embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of water flow in which the water flow pipeline is in a first state in an embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of water flow in the water flow pipeline in the second state in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the sewage chamber structure in the embodiment of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the water spraying member in the embodiment of the utility model;

[0022] Figure 7 This is a schematic diagram of the cleaning system structure in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1. Water supply and drainage components; 10. Main body; 11. Water flow pipeline; 12. Water distribution component; 101. Sewage chamber; 102. Clean water chamber; 110. Clean water inlet; 111. Water inlet pipeline; 112. First pipeline; 113. Second pipeline; 1011. Clean water inlet; 121. Three-way valve; 1211. Inlet; 1212. First inlet; 1213. Second inlet; 1012. Water spray component; 1120. Water spray chamber; 1121. Water spray hole; 1013. Sewage chamber outlet; 1014. Sewage inlet; 1015. Sewage float; 1021. Clean water chamber inlet; 1022. Clean water float; 2. Cleaning device; 3. Base; 4. Cleaning system. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in the utility model will not be described separately.

[0027] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside", "inside", "bottom" and "top" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the corresponding schematic diagrams, which may or may not be the left and right directions in normal use.

[0028] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0029] The cleaning system generally includes a base station and a cleaning device. The cleaning device is used to clean the surface to be cleaned, and the base station has the function of storing and charging the cleaning device. The base station in the cleaning system is usually equipped with upper and lower water components for cleaning the cleaning device. When the cleaning device returns to the base station after completing the cleaning work, the clean water chamber in the upper and lower water components will release clean water to clean the cleaning device, and the cleaned sewage will be stored in the sewage chamber.

[0030] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a water up and down assembly 1. Among them, Figure 1 The figure shows a schematic diagram of the structure when the bottom of the upper and lower water components are placed upwards. Under normal working conditions, the bottom of the upper and lower water components should be placed downwards. Figure 2 It is a longitudinal cross-sectional diagram of the upper and lower water components. It can be understood that the longitudinal direction represents the vertical direction under normal working conditions. Under normal working conditions, the upper and lower water components are cut along the vertical direction, and the structure of the remaining half of the upper and lower water components is removed. The internal structure is displayed. Figure 2 The structural diagram shown.

[0031] like Figure 1 As shown, the upper and lower water assembly 1 includes: a body 10, a water flow pipeline 11 and a water distribution member 12. Figure 2As shown, the body 10 has a sewage chamber 101 and a clean water chamber 102 arranged at intervals. The sewage chamber 101 and the clean water chamber 102 are used as accommodation spaces to accommodate and / or store sewage and clean water respectively. The interval between the two accommodation spaces means that there is no connection relationship. The water flow pipeline 11 includes a water inlet pipeline 111 connected to the clean water inlet 110, a first pipeline 112 connected to the clean water inlet 1011 of the sewage chamber 101, and a second pipeline 113 connected to the clean water chamber inlet 1021. It can be understood that the water inlet pipeline 111 can be connected to the clean water inlet outside the base station to introduce clean water into the base station, the first pipeline 112 is used to introduce clean water into the sewage chamber to self-clean the sewage chamber, and the second pipeline 113 is used to introduce clean water into the clean water chamber to store clean water in the clean water chamber. The water distribution member 12 connects the water inlet pipeline 111, the first pipeline 112, and the second pipeline 113 to switch the water inlet pipeline 111 between a first state A in which the water inlet pipeline 111 is connected to the first pipeline 112 and a second state B in which the water inlet pipeline 111 is connected to the second pipeline 113. It can be understood that the water inlet pipeline 111 may not be connected to the second pipeline 113 when it is connected to the first pipeline 112, and may not be connected to the first pipeline 112 when it is connected to the second pipeline 113, but it is not excluded that the water inlet pipeline 111 is connected to the first pipeline 112 and the second pipeline 113 at the same time. The following is an example in which the water inlet pipeline 111 is not connected to the first pipeline 112 and the second pipeline 113 at the same time.

[0032] like Figure 3 As shown, when the water flow pipeline 11 is in the first state A, the water inlet pipeline 111 and the first pipeline 112 in the water flow pipeline 11 are connected, and clean water enters the sewage chamber 101 from the clean water inlet 110 through the water inlet pipeline 111 and the first pipeline 112, and the clean water can clean the sewage chamber 101; when the water flow pipeline 11 is in the second state B, the water inlet pipeline 111 and the second pipeline 113 in the water flow pipeline 11 are connected, and clean water enters the clean water chamber 102 from the clean water inlet 110 through the water inlet pipeline 111 and the second pipeline 113 and is stored. The sewage chamber 101 can be controlled to self-clean by adjusting the water distribution member 12.

[0033] The upper and lower water components provided in the embodiment of the utility model are provided with a water dividing piece to connect the water inlet pipeline, the first pipeline and the second pipeline, so as to switch the water inlet pipeline between a first state connected to the first pipeline and a second state connected to the second pipeline. The embodiment of the utility model arranges a water dividing piece on the water inlet pipeline, and when clean water enters, the water dividing piece can introduce clean water into the sewage tank to clean the sewage tank; on the one hand, the self-cleaning of the sewage tank is realized; on the other hand, the water dividing piece is arranged on the water inlet pipeline, and the water inlet pipeline is utilized without the need to arrange an additional pipeline from the clean water storage container to the sewage tank, so the structure is simple and it is conducive to reducing costs.

[0034] In some embodiments, Figure 3 As shown, the water distribution member 12 includes a three-way valve 121, the inlet 1211 of the three-way valve 121 is connected to the water inlet pipeline 111, and the three-way valve 121 includes a first outlet 1212 and a second outlet 1213 that switch the communication relationship with the inlet 1211, the first outlet 1212 is connected to the first pipeline 112, and the second outlet 1213 is connected to the second pipeline 113. It can be understood that the water inlet pipeline 111, the first pipeline 112 and the second pipeline 113 are connected together through the three-way valve 121, the inlet 1211 of the three-way valve 121 is always connected to the water inlet pipeline 11, the first outlet 1212 is connected to the first pipeline 112, and the second outlet 1213 is connected to the second pipeline 113. By controlling the switching of the working state of the three-way valve, the switching of the communication between the inlet and the first outlet and the switching of the communication between the inlet and the second outlet is realized. It can be understood that the three-way valve can include all valves that can realize the switching of the communication relationship between two outlets and one inlet, and the embodiment of the utility model does not limit the specific structure of the three-way valve.

[0035] like Figure 3 As shown, when the water flow pipeline 11 is in the first state A, clean water flows into the first pipeline 112 through the first outlet 1212, and there is no conduction between the second outlet 1213 and the second pipeline 113; Figure 4 As shown, when the water flow pipeline 11 is in the second state B, clean water flows into the second pipeline 113 through the second outlet 1213, and there is no conduction between the first outlet 1212 and the first pipeline 112;

[0036] The water distribution member in the embodiment of the utility model adopts a three-way valve to divide the water flow pipeline into two different connection states. Automatic cleaning of the sewage chamber is achieved through a simple water distribution device, reducing production costs and processing difficulty.

[0037] In some embodiments, Figure 2 As shown, the first pipeline 112 passes through the clean water inlet 1011 of the sewage chamber 101 to extend into the sewage chamber 101, and a water spraying member 1012 is provided at one end of the first pipeline 112 located in the sewage chamber 101. In other words, a water spraying member 1012 is provided at one end of the first pipeline 112 away from the water distribution member 12, and the water spraying member 1012 enters the sewage chamber 101 from the clean water inlet 1011 and maintains a certain distance from the clean water inlet 1011 in the vertical direction. When the water flow pipeline 11 is in the first state A, clean water will be sprayed out from the water spraying member 1012 when entering the sewage chamber 101, and a water flow with pressure will be sprayed into the sewage chamber 101, thereby ensuring the cleaning effect of the sewage chamber.

[0038] The embodiment of the utility model provides a water spraying member at one end of the first pipe extending into the sewage chamber, so that the clean water has a certain pressure when entering the sewage chamber, which can impact stubborn stains, improve the cleaning effect of the clean water, and optimize the performance of the product.

[0039] In some embodiments, Figure 5 and Figure 6 As shown, the water spraying member 1012 has a water spraying chamber 1120 in communication with the first pipeline 112, and the water spraying member 1012 is provided with a plurality of water spraying holes 1121 in communication with the water spraying chamber 1120. That is, after the clean water in the first pipeline 112 enters the water spraying chamber 1120, it is sprayed out from the plurality of water spraying holes 1121, and the clean water is divided into a plurality of water streams through the water spraying member 1012 and enters the sewage chamber 101, thereby increasing the cleaning area and improving the cleaning effect of the sewage chamber.

[0040] The water spraying member in the embodiment of the utility model is provided with a plurality of water spraying holes, which divide the clean water flow into a plurality of beams, thereby increasing the cleaning area of ​​the clean water flow, improving the cleaning effect of the sewage cavity, and reducing the frequency of manual cleaning of the sewage cavity by users.

[0041] In some embodiments, Figure 5 and Figure 6 As shown, the portion of the first pipeline 112 in the sewage chamber 101 extends in the vertical direction or at an acute angle to the vertical direction, and the water spray hole 1121 is opened in the horizontal direction and / or multiple water spray holes 1121 are evenly arranged around the vertical direction. It can be understood that after the first pipeline 112 extends into the sewage chamber 101, it extends in the vertical direction or the approximately vertical direction of the sewage chamber 101, and the clean water in the water spray chamber 1120 is evenly sprayed from the water spray hole 1121 in the horizontal direction to the surroundings, so that the clean water can be evenly sprayed on the inner wall of the sewage chamber 101.

[0042] The water spray holes in the embodiment of the utility model are evenly arranged around the vertical direction, so that clean water can be evenly sprayed on the inner wall of the sewage chamber, avoiding poor cleaning effect of the inner wall and optimizing product performance.

[0043] In some embodiments, Figure 2 As shown, the sewage chamber 101 is also provided with a sewage chamber outlet 1013, and the sewage chamber outlet 1013 is provided at the bottom of the sewage chamber 101 in the vertical direction. It can be understood that the sewage chamber outlet 1013 is provided at the bottom of the sewage chamber 101 in the vertical direction, so as to completely discharge the sewage in the sewage chamber 101. The vertical distance H1 from the water spraying member 1012 to the bottom is greater than or equal to 2 / 3 of the vertical height H of the sewage chamber. In other words, in the vertical direction, the height H1 of the water spraying member 1012 is not less than 2 / 3 of the height of the sewage chamber 101, that is, H1 ≥ 2 / 3H. The height setting of the water spraying member 1012 enables clean water to clean the sewage chamber 101 from top to bottom, and flushes the stains near the upper part of the inner wall of the sewage chamber 101 to the bottom of the sewage chamber 101, so that the sewage can be discharged from the sewage chamber from the sewage chamber outlet 1013, and avoids excessive stains from accumulating on the inner wall of the sewage chamber 101.

[0044] The embodiment of the utility model allows the water spray component to extend into the sewage chamber to a sufficient height so that the upper position of the inner wall of the sewage chamber can also be cleaned, thereby reducing the cleaning blind area of ​​the water spray component, improving the cleaning effect of the water spray component, and optimizing product performance.

[0045] In some embodiments, Figure 2 As shown, the sewage chamber 101 is also provided with a sewage inlet 1014, and a sewage float 1015 is arranged in the sewage chamber 101. The height difference between any two of the sewage inlet 1014, the installation position of the sewage float 1015, and the water spraying member 1012 in the vertical direction is less than the first distance D1. That is to say, the sewage float 1015 in the sewage chamber 101 is located at the water level line of the maximum sewage capacity that can be accommodated in the sewage chamber 101. In the vertical direction, the sewage inlet 1014 is arranged above the highest water level line, and the height of the water spraying member 1012 is also arranged above the highest water level line. The height difference between the sewage inlet 1014, the sewage float 1015, and the water spraying member 1012 in the vertical direction is small, so as to ensure that the positions in the sewage tank that are in contact with the sewage can be sprayed with clean water.

[0046] The embodiment of the utility model limits the height of the sewage inlet, the sewage float and the water spray pipe, so that the clean water sprayed by the water spray component can contact the contaminated area in the sewage chamber, avoid the occurrence of cleaning blind spots, improve the cleaning quality, ensure the self-cleaning effect of the sewage tank, and improve the user experience.

[0047] In some embodiments, Figure 5 As shown, the sewage inlet 1014 of the sewage chamber 101 and the clean water inlet 1011 of the sewage chamber 101 are spaced apart by a second distance D2 in the horizontal direction, and the second distance D2 is greater than or equal to 1 / 2 of the horizontal extension length D of the sewage tank 101. It can be understood that in the horizontal direction, when the distance between the sewage inlet 1014 and the clean water inlet 1011 is small, the sewage will pollute the water spraying member 1012 when entering the sewage chamber 101, thereby affecting the cleaning effect. Therefore, it is necessary to limit the distance between the sewage inlet 1014 and the clean water inlet 1011, that is, D2 ≥ 1 / 2D.

[0048] In the embodiment of the utility model, by controlling the distance between the clean water inlet and the sewage inlet in the sewage tank, it is avoided that the sewage pollutes the clean water inlet and affects the cleaning effect, thereby further improving the cleaning quality and optimizing the product performance.

[0049] In some embodiments, Figure 2As shown, one end of the second pipeline 113 is connected to the water distribution member 12, and the other end is connected to the clean water chamber inlet 1021, and the clean water chamber inlet 1021 is arranged at the bottom of the clean water chamber 102. That is, when the water flow pipeline 11 is in the second state B, the second pipeline 113 is connected to the water inlet pipeline 111, and clean water can enter the clean water chamber 102 from the bottom of the clean water chamber 102 through the clean water chamber inlet 1021.

[0050] Similarly, a clean water float 1022 is also provided in the clean water chamber 102, one end of the clean water float 1022 is connected to the clean water chamber inlet 1021, as the amount of water in the clean water chamber 102 increases, the end of the clean water float 1022 away from the clean water chamber inlet 1021 gradually rises with the water level, when the clean water float 1022 rises to the level of both ends (the highest water level allowed), the end of the clean water float 1022 connected to the clean water inlet 1021 will block the clean water inlet 1021, so that clean water can no longer enter the clean water chamber 102, so as to control the amount of water added.

[0051] In the embodiment of the utility model, the inlet of the clean water chamber is arranged at the bottom of the clean water chamber, and the water volume in the clean water chamber is controlled by the clean water float, which simplifies the structure of the upper and lower water components and reduces the production cost and installation difficulty.

[0052] like Figure 7 As shown, the utility model also provides a cleaning system 4, including: a cleaning device 2 and a base station 3. Among them, the cleaning device 2 is used to clean the surface to be cleaned, and the base station 3 includes an upper and lower water assembly 1. The clean water chamber 102 is used to provide clean water to the cleaning device 2, and the sewage chamber 101 is used to collect sewage generated by the cleaning device 2. It can be understood that the cleaning device 2 is used to move on the surface to be cleaned and clean it. When the cleaning device 2 completes a certain amount of cleaning, the cleaning device 2 will automatically return to the base station 3. After completing the cleaning of the cleaning device 2 in the base station 3, the cleaning device 2 will drive out of the base station 3 again and continue to clean the surface to be cleaned.

[0053] During the cleaning process of the cleaning device 2 in the base station 3, the water supply and drainage components 1 in the base station 3 work, wherein the clean water stored in the clean water chamber 102 can clean the cleaning device 2, and the sewage generated during the cleaning process will enter the sewage chamber 101 through the sewage inlet 1014. When the sewage chamber needs to be cleaned, the self-cleaning work of the sewage chamber 101 can be completed by adjusting the water flow pipeline 11 to the first state A, and the user does not need to disassemble the sewage chamber 101 for cleaning.

[0054] The embodiment of the utility model provides a cleaning system that can perform self-cleaning of the sewage cavity. The user does not need to clean the sewage cavity by himself, which simplifies the operation, improves the automation level of the product, and is conducive to improving the user experience.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A water supply and drainage assembly, characterized in that: include: A main body, wherein a sewage cavity and a clean water cavity are arranged at intervals inside the main body; A water flow pipeline, comprising: a water inlet pipeline connected to the clean water inlet, a first pipeline connected to the clean water inlet of the sewage chamber, and a second pipeline connected to the clean water chamber inlet; The water dividing member connects the water inlet pipeline, the first pipeline and the second pipeline to switch the water inlet pipeline between a first state in communication with the first pipeline and a second state in communication with the second pipeline.

2. The water supply and drainage assembly according to claim 1, characterized in that: The water distribution component includes a three-way valve, the inlet of the three-way valve is connected to the water inlet pipeline, the three-way valve includes a first outlet and a second outlet that switch the communication relationship with the inlet, the first outlet is connected to the first pipeline, and the second outlet is connected to the second pipeline.

3. The water supply and drainage assembly according to claim 1 or 2, characterized in that: The first pipeline passes through the clean water inlet of the sewage chamber to extend into the sewage chamber, and a water spraying member is arranged at one end of the first pipeline located in the sewage chamber.

4. The water supply and drainage assembly according to claim 3, characterized in that: The water spraying member has a water spraying cavity in the interior thereof which is connected with the first pipeline, and the water spraying member is provided with a plurality of water spraying holes which are connected with the water spraying cavity.

5. The water supply and drainage assembly according to claim 4, characterized in that: The portion of the first pipeline in the sewage chamber extends in the vertical direction or extends at an acute angle to the vertical direction; the water spray holes are opened in the horizontal direction and / or a plurality of the water spray holes are evenly arranged around the vertical direction.

6. The water supply and drainage assembly according to claim 4, characterized in that: The sewage chamber is also provided with a sewage chamber outlet, which is arranged at the bottom of the sewage chamber in the vertical direction, and the vertical distance from the water spraying member to the bottom is greater than or equal to 2 / 3 of the vertical height of the sewage chamber.

7. The water supply and drainage assembly according to claim 4, characterized in that: The sewage cavity is also provided with a sewage inlet, a sewage float is arranged in the sewage cavity, and the height difference between any two of the sewage inlet, the installation position of the sewage float and the water spraying member in the vertical direction is less than the first distance.

8. The water supply and drainage assembly according to claim 7, characterized in that: The sewage inlet of the sewage chamber and the clean water inlet of the sewage chamber are spaced apart by a second distance in the horizontal direction, and the second distance is greater than or equal to 1 / 2 of the extension length of the sewage chamber in the horizontal direction.

9. The water supply and drainage assembly according to claim 1 or 2, characterized in that: One end of the second pipeline is connected to the water distribution member, and the other end is connected to the clean water chamber inlet, and the clean water chamber inlet is arranged at the bottom of the clean water chamber.

10. A cleaning system, characterized in that: include: A cleaning device, used for cleaning the surface to be cleaned; A base station, the base station comprising a water supply and discharge assembly according to any one of claims 1 to 9; The clean water chamber is used to provide clean water to the cleaning device, and the sewage chamber is used to collect sewage generated by the cleaning device.

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