Base station and cleaning system

Abstract

The embodiment of the utility model relates to the technical field of cleaning, and particularly discloses a base station and a cleaning system, a first liquid inlet pipe, a liquid storage tank, a detection assembly and a controller are all arranged on a base station main body, a switch valve is arranged on the first liquid inlet pipe and used for controlling the first liquid inlet pipe to be opened and closed, and the liquid storage tank comprises a tank body and a floating part. The box body is provided with a first liquid storage cavity, the first liquid storage cavity is used for storing cleaning liquid and communicates with one end of the first liquid inlet pipe, the floating part is arranged in the first liquid storage cavity and can float along with the liquid level in the first liquid storage cavity, the detection assembly is used for detecting the position of the floating part, and the controller is connected with the switch valve and the detection assembly. The controller is used for controlling the switching valve to be closed when the liquid level of the first liquid storage cavity reaches a preset threshold value according to the opening of the switching valve and the position, detected by the detection assembly, of the floating part. By means of the mode, the problem that an electrode is prone to being affected by the liquid environment in electrode type detection is solved, and the accuracy of liquid level detection is improved.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of cleaning technology, and in particular to a base station and a cleaning system. Background Art

[0002] With the advancement of science and technology and the continuous improvement of people's requirements for cleaning efficiency and effectiveness, the functions and performance of base stations as an important part of the cleaning system are also receiving increasing attention. Base stations are usually used to store and supply cleaning liquids, as well as to receive and process dirty liquids after use by cleaning equipment. The base station includes a base station body and a liquid storage tank. The liquid storage tank is used to connect the cleaning equipment and the external liquid source respectively. The external liquid source is used to replenish the cleaning liquid into the liquid storage chamber. In the process of replenishing the cleaning liquid in the liquid storage tank, in order to prevent the liquid from overflowing and damaging the equipment or polluting the environment, it is usually necessary to detect whether the liquid level in the liquid storage tank has reached the maximum liquid level and stop replenishing the liquid when it is full. At present, the liquid fullness detection in the base station liquid storage tank usually adopts electrode detection. Electrodes are set in the liquid storage tank to monitor the liquid level. When the liquid level rises to the point of contacting the electrode, the circuit is turned on, thereby triggering a signal to stop replenishing the liquid.

[0003] In the process of implementing the embodiments of the present utility model, the inventors found that when using electrode-type liquid fullness detection, the electrodes are easily affected by impurities, corrosive substances or conductivity changes in the liquid, resulting in reduced detection accuracy and false or missed liquid fullness alarms. Utility Model Content

[0004] In view of the above problems, embodiments of the present invention provide a base station and a cleaning system, which overcome the above problems or at least partially solve the above problems.

[0005] To solve the above technical problems, the present invention adopts a technical solution: providing a base station, comprising a base station body, a first liquid inlet pipe, an on-off valve, a liquid storage tank, a detection assembly, and a controller, wherein the first liquid inlet pipe is provided in the base station body, the on-off valve is provided in the first liquid inlet pipe, and the on-off valve is used to control the opening and closing of the first liquid inlet pipe. The liquid storage tank is provided in the base station body, the liquid storage tank comprises a housing and a float, the housing is provided with a first liquid storage chamber, the first liquid storage chamber is used to store cleaning liquid, the first liquid storage chamber is connected to one end of the first liquid inlet pipe, the float is provided in the first liquid storage chamber, and the float can float with the liquid level in the first liquid storage chamber, the detection assembly is provided in the base station body, the detection assembly is used to detect the position of the float, and the controller is provided in the base station body, the controller is connected to the on-off valve and the detection assembly, and the controller is used to control the on-off valve to close when it is determined that the liquid level in the first liquid storage chamber has reached a preset threshold value based on the on-off valve being opened and the position of the float detected by the detection assembly.

[0006] Optionally, the liquid storage tank further includes a limit cover, which is arranged at the bottom of the first liquid storage chamber, and the limit cover is provided with a floating chamber and a through hole, the through hole connects the floating chamber and the first liquid storage chamber, the floating member is located in the floating chamber, and the floating member can float in the floating chamber, the limit cover is used to limit the floating member to float between the preset first position and the preset second position, the controller is used to control the switch valve to open when it is determined that the floating member is in the preset first position according to the position information of the floating member detected by the detection component, and when the switch valve is opened The controller calculates the waiting time required for the liquid level of the first liquid storage chamber to reach the preset threshold value based on the preset changing capacity, the preset maximum capacity and the actual time, and controls the switch valve to close the first liquid inlet pipe after the waiting time has passed since the float reaches the preset second position.

[0007] Optionally, the floating member includes a floating body and a magnetic member arranged on the floating body, and the detection component includes a Hall sensor and a timer, and the Hall sensor is used to determine the position of the floating member by sensing the magnetic field of the magnetic member, and the Hall sensor and timer are both connected to the controller.

[0008] Optionally, the magnetic component is arranged at one end of the floating body close to the bottom of the first liquid storage chamber.

[0009] Optionally, along the direction from the top to the bottom of the first liquid storage chamber, the cross-sectional area of ​​at least part of the floating body gradually increases.

[0010] Optionally, the through hole is provided on a side wall of the limiting cover, and the through hole extends from the bottom of the first liquid storage cavity to the top of the first liquid storage cavity.

[0011] Optionally, a limiting protrusion is provided at one end of the limiting cover away from the bottom of the first liquid storage chamber, and along the height direction of the limiting cover, the projection of the limiting protrusion partially overlaps with the end surface of one end of the floating member close to the top of the first liquid storage chamber.

[0012] Optionally, the box body is provided with a communicating port, which is connected to the first liquid storage chamber, one end of the first liquid inlet tube is connected to the communicating port, and the other end of the first liquid inlet tube is connected to a liquid source, and the liquid source is used to provide cleaning liquid to the first liquid storage chamber, and a sealing member is provided on the side wall of one end of the first liquid inlet tube, and the sealing member is arranged around the first liquid inlet tube, the sealing member abuts the outer surface of the box body, and the sealing member surrounds the communicating port.

[0013] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a cleaning system, including a cleaning device and the above-mentioned base station, the cleaning device and the base station are detachably connected, the base station also includes a first liquid outlet pipe arranged on the base station body, one end of the first liquid outlet pipe is connected to the first liquid storage chamber, and the other end of the first liquid outlet pipe is used for detachable docking with the cleaning device.

[0014] Optionally, the box body is provided with a second liquid storage chamber, and the second liquid storage chamber is not connected to the first liquid storage chamber. The base station also includes a second liquid inlet pipe and a second liquid outlet pipe arranged on the base station body, one end of the second liquid inlet pipe and one end of the second liquid outlet pipe are both connected to the second liquid storage chamber, and the other end of the second liquid outlet pipe is connected to the outside world. The cleaning equipment is provided with a third liquid storage chamber and a fourth liquid storage chamber, the third liquid storage chamber is used to store cleaning liquid, and the fourth liquid storage chamber is used to store dirty liquid. When the base station is connected to the cleaning equipment, the other end of the first liquid outlet pipe is connected to the third liquid storage chamber, and the other end of the second liquid inlet pipe is connected to the fourth liquid storage chamber.

[0015] The beneficial effects of the embodiments of the present invention are as follows: Different from the prior art, the embodiments of the present invention provide a base station and a cleaning system, the base station comprising a base station body, a first liquid inlet pipe, an on-off valve, a liquid storage tank, a detection assembly, and a controller, wherein the first liquid inlet pipe is provided in the base station body, the on-off valve is provided in the first liquid inlet pipe, and the on-off valve is used to control the opening and closing of the first liquid inlet pipe. The liquid storage tank is provided in the base station body, the liquid storage tank comprises a housing and a float, the housing is provided with a first liquid storage chamber, the first liquid storage chamber is used to store cleaning liquid, the first liquid storage chamber is connected to one end of the first liquid inlet pipe, the float is provided in the first liquid storage chamber, and the float can float with the liquid level in the first liquid storage chamber, the detection assembly is provided in the base station body, the detection assembly is used to detect the position of the float, the controller is provided in the base station body, the controller is connected to the on-off valve and the detection assembly, and the controller is used to control the on-off valve to close when it is determined that the liquid level in the first liquid storage chamber reaches a preset threshold value based on the on-off valve being opened and the position of the float detected by the detection assembly. Through the above-mentioned method, the problem that the electrodes in electrode-type detection are easily affected by the liquid environment is avoided, and the accuracy of liquid level detection is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying any creative work.

[0017] Figure 1 This is a schematic cross-sectional structural diagram of a base station provided by an embodiment of the present utility model;

[0018] Figure 2 It is a three-dimensional diagram of a water tank provided by an embodiment of the utility model;

[0019] Figure 3 This is a top view of a water tank with the float provided by an embodiment of the present utility model located at a preset first position;

[0020] Figure 4 yes Figure 2 A cross-sectional view of the floating member located at a preset first position after being cut along the cutting line AA;

[0021] Figure 5 This is a top view of a water tank with the float provided by an embodiment of the present utility model located at a preset second position;

[0022] Figure 6 yes Figure 2A cross-sectional view of the floating member located at a preset second position after being cut along the cutting line AA. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification and in the description of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" used in this specification includes any and all combinations of one or more of the relevant listed items.

[0025] See also Figure 1 The base station 100 includes a base station body 1, a liquid storage tank 2, a first liquid inlet pipe 3, a first liquid outlet pipe 4, a switch valve 5, a second liquid inlet pipe, a second liquid outlet pipe, a detection component, and a controller. The liquid storage tank 2, the detection component, and the controller are all arranged in the base station body 1. The first liquid inlet pipe 3, the first liquid outlet pipe 4, the second liquid inlet pipe, and the second liquid outlet pipe are respectively connected to the liquid storage tank 2. The first liquid inlet pipe 3 and the first liquid outlet pipe 4 are respectively used to supply cleaning liquid into and out of the liquid storage tank 2, and the second liquid inlet pipe and the second liquid outlet pipe are respectively used to supply dirty liquid into and out of the liquid storage tank 2. The cleaning liquid and dirty liquid in the liquid storage tank 2 are stored separately. The switch valve 5 is arranged on the first liquid inlet pipe 3 and is used to control the opening and closing of the first liquid inlet pipe 3. The controller is connected to the detection component and the switch valve 5. The controller is used to cooperate with the detection component to control the switch valve 5 to close when the switch valve 5 is opened and the liquid level of the cleaning liquid in the liquid storage tank 2 reaches a preset threshold.

[0026] It should be noted that the cleaning fluid can be one or more liquids such as water, a chemical detergent in a specific ratio, or a biological enzymatic hydrolyzate, depending on the actual application scenario and cleaning requirements. The cleaning fluid is used to remove dirt, grease, stains, or other unwanted substances from the target surface. Dirt liquid refers to the liquid produced during the cleaning process, which contains dirt removed from the target surface, detergent residue, and possibly water.

[0027] For the above mentioned tank 2, see Figure 2 and Figure 3The liquid storage tank 2 includes a box body 21, a floating member 23 and a limit cover 22. The box body 21 is provided with a connecting port 210, a first liquid storage chamber 211 and a second liquid storage chamber 212. The first liquid storage chamber 211 is used to store cleaning liquid, and the second liquid storage chamber 212 is used to store dirty liquid. The first liquid storage chamber 211 and the second liquid storage chamber 212 are not connected. The connecting port 210 is connected to the first liquid storage chamber 211. The connecting port 210 is arranged near the top of the first liquid storage chamber 211. The connecting port 210 is used to connect with one end of the first liquid inlet pipe 3.

[0028] See also Figures 3 to 6 The float 23 and the limiting cover 22 are both disposed in the first liquid storage chamber 211. The float 23 can float with the liquid level in the first liquid storage chamber 211. The float 23 is located within the limiting cover 22, which is used to limit the float 23 from floating between a preset first position and a preset second position. The limiting cover 22 is disposed at the bottom of the first liquid storage chamber 211. The limiting cover 22 is provided with a float cavity 220 and a through hole 221. The through hole 221 connects the float cavity 220 with the first liquid storage chamber 211. The through hole 221 is disposed on the side wall of the limiting cover 22. The through hole 221 extends from the bottom of the first liquid storage chamber 211 to the top of the first liquid storage chamber 211, allowing the liquid in the first liquid storage chamber 211 to flow smoothly into the float cavity 220, ensuring that the float can reflect the actual liquid level in the first liquid storage chamber 211. A limiting protrusion 222 is provided at one end of the limiting cover 22 away from the bottom of the first liquid storage chamber 211. Along the height direction of the limiting cover 22, the projection of the limiting protrusion 222 partially overlaps with the end surface of the floating member 23 close to the top of the first liquid storage chamber 211 to prevent the floating member 23 from escaping from the floating chamber 220.

[0029] The float 23 is located in the float chamber 220 and is capable of floating in the float chamber 220. The float 23 includes a float body 231 and a magnetic member 232. The magnetic member 232 is disposed at one end of the float body 231 near the bottom of the first liquid storage chamber 211. Along the direction from the top of the first liquid storage chamber 211 to the bottom of the chamber, the cross-sectional area of ​​at least part of the float body 231 gradually increases, so that the float 23 has a more stable buoyancy characteristic and floats stably with changes in the liquid level. Specifically, in the case of Figure 4 In some examples, the cross-sectional area of ​​the float 231 gradually increases and then gradually decreases along the direction from the top to the bottom of the first liquid storage chamber 211. In other examples, the cross-sectional area of ​​the float 231 increases continuously along the direction from the top to the bottom of the first liquid storage chamber 211.

[0030] Please refer back Figure 1The first liquid inlet pipe 3, the first liquid outlet pipe 4, the second liquid inlet pipe (not shown) and the second liquid outlet pipe (not shown) are all arranged on the base station body 1. One end of the first liquid inlet pipe 3 is connected to the connecting port 210 and is connected to the first liquid storage chamber 211 through the connecting port 210. The other end of the first liquid inlet pipe 3 is connected to the liquid source, and the liquid source is used to provide cleaning liquid to the first liquid storage chamber 211. One end of the first liquid outlet pipe 4 is connected to the first liquid storage chamber 211, and the cleaning liquid in the first liquid storage chamber 211 flows out through the first liquid outlet pipe 4. One end of the second liquid inlet pipe and one end of the second liquid outlet pipe are both connected to the second liquid storage chamber 212. The second liquid inlet pipe is used to supply dirty liquid to flow into the second liquid storage chamber 212 after passing through it. The other end of the second liquid outlet pipe is connected to the outside world, and the dirty liquid in the second liquid storage chamber 212 flows out to the outside world through the second liquid outlet pipe.

[0031] In some embodiments, a seal 31 is provided on the side wall of one end of the first liquid inlet pipe 3 connected to the connecting port 210. The seal 31 is arranged around the first liquid inlet pipe 3. The seal 31 abuts against the outer surface of the box body 21 and surrounds the connecting port 210 to close the gap between the first liquid inlet pipe 3 and the connecting port 210 to prevent liquid leakage from damaging the device.

[0032] In some embodiments, the first liquid inlet pipe 3 is further provided with a pressure reducing valve 32, which is used to adjust the pressure of the provided cleaning liquid when it flows into the first liquid inlet pipe 3, ensuring that the cleaning liquid enters the first liquid storage chamber 211 at a stable flow rate and pressure.

[0033] The detection assembly (not shown) includes a Hall effect sensor and a timer, both of which are connected to the controller. The Hall effect sensor is located outside the bottom of the first liquid storage chamber 211. The Hall effect sensor and the magnetic member 232 are positioned along the height of the first liquid storage chamber 211. The Hall effect sensor determines the position of the floating member 23 by sensing the magnetic field of the magnetic member 232. The timer records the time when the Hall effect sensor detects a change in the position of the floating member 23.

[0034] Regarding the aforementioned controller (not shown), in some embodiments, the controller can be a microprocessor or programmable logic controller (PLC) equipped with data processing and logical analysis capabilities. The controller internally stores preset algorithms and programs, enabling real-time data analysis and processing based on the position signal of the float 23 transmitted by the Hall effect sensor and the time information provided by the timer. When the controller determines that the liquid level in the first liquid storage chamber 211 has reached a preset liquid level threshold, it immediately triggers a closing command for the on-off valve 5 to prevent excessive overflow and waste of the cleaning liquid.

[0035] In some embodiments, the height of the limiting cover 22 is the same as the height of the first liquid storage chamber 211. When the float 23 is in the preset second position, the liquid level in the first liquid storage chamber 211 reaches a preset threshold. When the on-off valve 5 is open and liquid from the cold source enters the first liquid storage chamber 211 through the first liquid inlet pipe 3, the controller controls the on-off valve 5 to close when the Hall sensor detects that the float 23 is in the preset second position, thereby stopping liquid inflow and preventing the first liquid storage chamber 211 from overflowing.

[0036] In other embodiments, the height of the limit cover 22 is less than the height of the first liquid storage chamber 211. Based on the position information of the float 23 detected by the detection assembly, the controller controls the on-off valve 5 to open when the float 23 is determined to be in the preset first position. When the on-off valve 5 is opened, the controller obtains from the timer the actual time t1 for the float 23 to reach the preset second position from the preset first position, the preset change in volume V1 of the first liquid storage chamber 211 from the preset first position to the preset second position, and the preset maximum volume V0 of the first liquid storage chamber 211 when the liquid level of the first liquid storage chamber 211 reaches the preset threshold. The controller then calculates the waiting time t2 required for the liquid level of the first liquid storage chamber 211 to reach the preset threshold based on the preset change in volume V1, the preset maximum volume V0, and the actual time t1. After the waiting time t2 has elapsed since the float 23 reached the preset second position, the controller controls the on-off valve 5 to close the first liquid inlet pipe 3. The waiting time t2 refers to the time required for the liquid level in the first liquid storage chamber 211 to reach a preset threshold from the liquid level corresponding to the floating member 23 being at the preset second position.

[0037] The formula used in the above calculation process is as follows:

[0038] t2=s(V0-V1),

[0039]

[0040] Here, s refers to the inflow rate of the cleaning liquid into the first liquid storage chamber 211 through the first liquid inlet pipe 3. That is, in the above process, the method for detecting that the first liquid storage chamber 211 is full of liquid to prevent overflow is to first calculate the average inflow rate s of the liquid based on the movement time of the float 23 from the preset first position to the preset second position and the corresponding change in liquid volume. Next, the controller uses this average inflow rate s and the remaining capacity (V0-V1) of the first liquid storage chamber 211 from the time when the float 23 is at the preset second position to the time when the liquid level reaches the preset threshold to calculate the waiting time t2. Finally, after the inflow time t2 has elapsed, the on-off valve 5 is controlled to close to stop the inflow of water, thereby controlling the inflow of water when the liquid is full to prevent overflow. This method not only avoids the problem of electrodes being easily affected by the liquid environment in electrode-based detection, but also shortens the sensing distance of the magnetic element 232 and the Hall sensor, ensuring the detection sensitivity of the detection component and further improving the accuracy and reliability of liquid level detection.

[0041] It should be noted that the preset first position can be the lowest position at which the float 23 floats in the first liquid storage chamber 211, and this position corresponds to the lowest safe liquid level of the cleaning liquid in the first liquid storage chamber 211. When the float 23 drops to the preset first position due to a drop in the liquid level, it means that the cleaning liquid in the liquid storage tank 2 is about to be exhausted and needs to be replenished in time to ensure that the cleaning operation can continue. After the controller monitors that the float 23 has reached the preset first position through the detection component, it controls the switch valve 5 to open to automatically replenish the cleaning liquid from an external liquid source. The preset second position can be the highest position at which the float 23 floats in the limit cover 22. When the float 23 floats from the preset first position to the preset second position along with the liquid level, the liquid capacity in the first liquid storage chamber 211 is the preset variable capacity V1.

[0042] In an embodiment of the present invention, a base station 100 includes a base station body 1, a liquid storage tank 2, a first liquid inlet pipe 3, an on-off valve 5, a detection assembly, and a controller. The first liquid inlet pipe 3, liquid storage tank 2, detection assembly, and controller are all disposed within the base station body 1. The liquid storage tank 2 includes a housing 21 and a float 23. The housing 21 includes a first storage chamber for storing cleaning liquid, which is connected to one end of the first liquid inlet pipe 3. The float 23 is disposed within the first liquid storage chamber 211 and is capable of floating in response to the liquid level within the first liquid storage chamber 211. The on-off valve 5 is disposed within the first liquid inlet pipe 3. The detection assembly is configured to detect the position of the float 23. The controller is connected to the on-off valve 5 and the detection assembly. The detection assembly is configured to control the on-off valve 5 to close when the liquid level in the first liquid storage chamber 211 reaches a predetermined threshold based on the position of the float 23 detected by the detection assembly when the on-off valve 5 is opened. Through the coordinated work of the floating member 23, the detection component and the controller, the base station 100 of the utility model realizes precise control of the liquid level of the cleaning liquid in the liquid storage tank 2, which not only effectively prevents the problem of overflow and waste caused by excessive liquid level, but also avoids the problem that the electrode in electrode-type detection is easily affected by the liquid environment.

[0043] The present invention also provides an embodiment of a cleaning system, which includes a cleaning device (not shown) and the above-mentioned base station 100. The cleaning device and the base station 100 can be detachably connected. For the structure and function of the base station 100, please refer to the above-mentioned embodiment, which will not be described in detail here.

[0044] The cleaning device is provided with a third liquid storage chamber and a fourth liquid storage chamber. The third liquid storage chamber is used to store cleaning liquid, and the fourth liquid storage chamber is used to store dirty liquid. The third liquid storage chamber and the fourth liquid storage chamber are not connected. During operation, the cleaning device will release the cleaning liquid in the third liquid storage chamber to the surface to be cleaned, and remove the stains on the surface to be cleaned in combination with the cleaning components built into the cleaning device, such as a rotating brush head or a high-pressure nozzle. At the same time, the suction device of the cleaning device will recycle the cleaning liquid mixed with stains, that is, the dirty liquid, to the fourth liquid storage chamber. During operation, the cleaning device can also intelligently monitor the liquid level status of the third liquid storage chamber and the fourth liquid storage chamber. When the cleaning liquid is insufficient or the dirty liquid reaches the preset capacity, the cleaning device will move to connect with the base station 100 for refilling or sewage discharge.

[0045] When the cleaning device is connected to the base station 100, the third liquid storage chamber is connected to the other end of the first liquid outlet pipe 4. Cleaning liquid in the first liquid storage chamber 211 flows through the first liquid outlet pipe 4 to the third liquid storage chamber for replenishment. The fourth liquid storage chamber is connected to the other end of the second liquid inlet pipe. Dirty liquid in the fourth liquid storage chamber flows through the second liquid inlet pipe to the second liquid storage chamber 212 for drainage.

[0046] In some embodiments, the base station 100 further includes a charging component. When the cleaning device is electrically connected to the base station 100 , the charging component is used to provide electrical energy to the cleaning device.

[0047] In the embodiment of the present invention, the base station 100 in the cleaning system can replenish cleaning liquid for the cleaning equipment and recover dirty liquid at the same time, thereby improving the cleaning efficiency.

[0048] It should be noted that the preferred embodiments of the present invention are given in the specification and drawings of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments do not serve as additional limitations on the content of the present invention. The purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the description of the present invention; further, it is obvious to those skilled in the art that improvements or changes can be made based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A base station, characterized in that: include: Base station body; A first liquid inlet pipe is provided on the base station body; an on-off valve, disposed on the first liquid inlet pipe, the on-off valve being used to control the opening and closing of the first liquid inlet pipe; a liquid storage tank, disposed in the base station body, comprising a tank body and a floating member, wherein the tank body is provided with a first liquid storage chamber, the first liquid storage chamber being used to store cleaning liquid, the first liquid storage chamber being connected to one end of the first liquid inlet pipe, the floating member being disposed in the first liquid storage chamber and capable of floating with the liquid level in the first liquid storage chamber; A detection component is provided on the base station body, and is used to detect the position of the floating member; A controller is provided in the base station body, and is connected to the switch valve and the detection component. The controller is used to control the switch valve to close when it is determined that the liquid level of the first liquid storage chamber reaches a preset threshold value based on the opening of the switch valve and the position of the floating member detected by the detection component.

2. The base station according to claim 1, wherein The liquid storage tank further includes a limiting cover, the limiting cover being disposed at the bottom of the first liquid storage chamber, the limiting cover being provided with a floating chamber and a through hole, the through hole connecting the floating chamber and the first liquid storage chamber, the floating member being located in the floating chamber and capable of floating in the floating chamber, the limiting cover being used to limit the floating member from floating between a preset first position and a preset second position; The controller is configured to control the on-off valve to open when it is determined that the float is in a preset first position based on the position information of the float detected by the detection component, and, when the on-off valve is opened, to obtain an actual time duration for the float to reach a preset second position from the preset first position, to obtain a preset change in capacity of the first liquid storage chamber when the float reaches the preset second position from the preset first position, and to obtain a preset maximum capacity of the first liquid storage chamber when the liquid level of the first liquid storage chamber reaches a preset threshold value; The controller calculates the waiting time required for the liquid level of the first liquid storage chamber to reach a preset threshold value based on the preset change capacity, the preset maximum capacity and the actual time, and controls the switch valve to close the first liquid inlet pipe after the waiting time has passed since the float reaches the preset second position.

3. The base station according to claim 1, wherein The floating member includes a floating body and a magnetic member arranged on the floating body. The detection component includes a Hall sensor and a timer. The Hall sensor is used to determine the position of the floating member by sensing the magnetic field of the magnetic member. The Hall sensor and the timer are both connected to the controller.

4. The base station according to claim 3, characterized in that , The magnetic component is arranged at one end of the floating body close to the bottom of the first liquid storage cavity.

5. The base station according to claim 4, characterized in that Along the direction from the top to the bottom of the first liquid storage cavity, the cross-sectional area of ​​at least part of the floating body gradually increases. The base station according to claim 2, wherein: The through hole is provided on the side wall of the limiting cover, and the through hole extends from the bottom of the first liquid storage cavity to the top of the first liquid storage cavity.

7. The base station according to claim 2, wherein: A limiting protrusion is provided at one end of the limiting cover away from the bottom of the first liquid storage cavity. Along the height direction of the limiting cover, the projection of the limiting protrusion partially overlaps with the end surface of the floating member close to the cavity top of the first liquid storage cavity.

8. The base station according to claim 1, wherein The box body is provided with a communication port, the communication port is communicated with the first liquid storage cavity, one end of the first liquid inlet pipe is connected to the communication port, and the other end of the first liquid inlet pipe is connected to a liquid source, and the liquid source is used to provide cleaning liquid to the first liquid storage cavity; A sealing member is provided on the side wall of one end of the first liquid inlet pipe. The sealing member is provided around the first liquid inlet pipe, abuts against the outer surface of the box body, and surrounds the communication port.

9. A cleaning system, characterized in that: comprising a cleaning device and a base station according to any one of claims 1 to 8, wherein the cleaning device is detachably connected to the base station; The base station further includes a first liquid outlet pipe provided on the base station body, one end of the first liquid outlet pipe is communicated with the first liquid storage cavity, and the other end of the first liquid outlet pipe is used for detachably docking with the cleaning device.

10. The cleaning system according to claim 9, characterized in that The box body is provided with a second liquid storage cavity, the second liquid storage cavity is not connected to the first liquid storage cavity, the base station further includes a second liquid inlet pipe and a second liquid outlet pipe provided on the base station body, one end of the second liquid inlet pipe and one end of the second liquid outlet pipe are both connected to the second liquid storage cavity, and the other end of the second liquid outlet pipe is connected to the outside; The cleaning device is provided with a third liquid storage chamber and a fourth liquid storage chamber. The third liquid storage chamber is used to store cleaning liquid, and the fourth liquid storage chamber is used to store dirty liquid. When the base station is connected to the cleaning device, the other end of the first liquid outlet pipe is connected to the third liquid storage chamber, and the other end of the second liquid inlet pipe is connected to the fourth liquid storage chamber.

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