Base station and cleaning system

Abstract

The invention provides a base station and a cleaning system. The base station comprises a mounting body, a dirt collecting tank body, a sucking pump and a drainage pipeline. The installation body is provided with an installation cavity, an air suction opening, a sewage suction opening and a water drainage opening. And the sewage collecting tank body is communicated with the sewage pumping port. The drainage pipeline is communicated with the drainage port and the sewage collection tank body. The air pump is provided with an air inlet communicated with the air extraction opening and an air outlet communicated with the water drainage pipeline. The exhaust resistance of the first pipeline section is greater than that of the second pipeline section, so that foul gas in the drainage pipeline can be discharged out of the base station from the sewage collection tank body along the second pipeline section, and the reliability of the base station is improved. Besides, the foul gas can form negative pressure in the flowing process in the second pipeline section, accumulated water in the mounting cavity and accumulated water in the drainage pipeline can be completely discharged into the dirt collecting tank body under the action of the negative pressure, it is guaranteed that the interior of the mounting cavity and the interior of the drainage pipeline are kept dry, bacterium breeding is avoided, and the cleanliness of the base station is improved.

Description

Technical Field

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

[0002] Most of the existing sweeper base stations in the industry are equipped with sewage tanks. Users need to remove the sewage tanks regularly to remove the sewage in the tanks, but water easily accumulates inside the sewage tanks, causing bacteria to grow. In addition, most of the industry's sewage pumps do not have a specific outlet position, and directly discharge the dirty gas in the sewage tank into the base station, which may cause damage to the base station circuit system. Summary of the invention

[0003] Based on this, it is necessary to provide a base station and a cleaning system to address the above problems.

[0004] The technical solution is as follows:

[0005] In one aspect, a base station is provided, comprising:

[0006] The installation body is provided with an installation cavity and an air extraction port and a sewage extraction port communicated with the installation cavity, the bottom wall of the installation cavity is provided with a drainage port, and the air extraction port and the sewage extraction port are both configured to communicate with the sewage tank when the sewage tank is installed in the installation cavity;

[0007] A sewage collecting tank body is connected to the sewage extraction port and is used to collect sewage discharged by the cleaning equipment;

[0008] A drainage pipeline, connecting the drainage port and the sewage collecting tank;

[0009] An air pump, provided with an air inlet and an air outlet, wherein the air inlet is connected to the air extraction port, and the air outlet is connected to the drainage pipeline;

[0010] Among them, the drainage pipeline between the air outlet and the drain outlet is set as a first pipeline section, and the drainage pipeline between the air outlet and the sewage collecting tank body is set as a second pipeline section, and the exhaust resistance of the first pipeline section is greater than the exhaust resistance of the second pipeline section.

[0011] The technical solution is further described below:

[0012] In one embodiment, the first pipeline section is located above the second pipeline section, and the length of the first pipeline section is greater than the length of the second pipeline section.

[0013] In one embodiment, the drainage pipeline includes a first connecting pipe with one end connected to the drainage port, a second connecting pipe with one end connected to the sewage collecting tank, and a first connecting member, wherein the first connecting member is provided with a first end, a second end and a third end connected to each other, the first end is connected to the other end of the first connecting pipe, the second end is connected to the other end of the second connecting pipe, and the third end is connected to the air outlet.

[0014] In one embodiment, the sewage collecting tank body includes a tank body connected to the sewage extraction port, and a discharge joint installed on the top of the tank body, one end of the discharge joint is connected to an end of the second connecting pipe away from the first connecting piece, and the other end extends to the top of the tank body, so that the tank body can receive the accumulated water discharged from the discharge joint.

[0015] In one embodiment, the base station further includes an air extraction pipe and an exhaust pipe, wherein two ends of the air extraction pipe are respectively connected to the air extraction port and the air inlet, and two ends of the exhaust pipe are respectively connected to the air outlet and the third end.

[0016] In one embodiment, a baffle plate is further provided in the installation cavity, and the baffle plate divides the installation cavity into a first installation chamber for installing the sewage tank, and a second installation chamber for installing the clean water tank. The bottom walls of the first installation chamber and the second installation chamber are both provided with the drain outlets. The drainage pipeline also includes a third connecting pipe, a fourth connecting pipe and a second connecting piece. One end of the third connecting pipe and one end of the fourth connecting pipe are respectively connected to the two drain outlets. The second connecting piece is provided with a fourth end, a fifth end and a sixth end that are connected to each other. The fourth end is connected to the other end of the third connecting pipe, the fifth end is connected to the other end of the fourth connecting pipe, and the sixth end is connected to an end of the first connecting pipe away from the first connecting piece.

[0017] In one embodiment, the first connecting tube is located above the second connecting tube, and the third connecting tube and the fourth connecting tube are both located above the first connecting tube.

[0018] In one embodiment, a baffle plate is further provided in the installation cavity, and the baffle plate divides the installation cavity into a first installation chamber for installing the sewage tank, and a second installation chamber for installing the clean water tank, the bottom wall of the first installation chamber and the bottom wall of the second installation chamber are both provided with the drain outlet, the first connecting member is also provided with a seventh end connected to the first end, and the drainage pipeline also includes a fifth connecting pipe with one end connected to the seventh end, and one end of the fifth connecting pipe away from the first connecting member and one end of the first connecting pipe away from the first connecting member are respectively connected to the two drain outlets.

[0019] In one embodiment, a baffle is further provided in the installation cavity, and the baffle divides the installation cavity into a first installation chamber for installing the sewage tank and a second installation chamber for installing the clean water tank. Either the bottom wall of the first installation chamber or the bottom wall of the second installation chamber is provided with the drain port, and the bottom wall of the baffle is provided with an opening for connecting the first installation chamber and the second installation chamber.

[0020] On the other hand, a cleaning system is provided, comprising a cleaning device and the base station, wherein the base station is provided with a working position and is configured to receive sewage discharged by the cleaning device and replenish water to the cleaning device when the cleaning device moves to the working position.

[0021] In the base station and the cleaning system in the above-mentioned embodiment, when there is water accumulation in the installation cavity, the water accumulation can flow to the drainage pipeline through the drain port, thereby realizing the discharge of the water accumulation. When the vacuum pump is working, the vacuum pump extracts air from the sewage tank through the air inlet and the air outlet, and exhausts the air into the drainage pipeline through the air outlet. Since the exhaust resistance of the first pipeline section is greater than the exhaust resistance of the second pipeline section, the dirty gas in the drainage pipeline will be discharged from the sewage collection tank body to the outside of the base station along the second pipeline section, thereby preventing the dirty gas from being discharged into the interior of the base station and causing damage to the circuit inside the base station, thereby improving the reliability of the base station. In addition, negative pressure will be formed during the flow of the dirty gas in the second pipeline section, and the accumulated water in the installation cavity and the accumulated water in the drainage pipeline can be completely discharged into the sewage collection tank body under the action of the negative pressure, thereby ensuring that the installation cavity and the drainage pipeline remain dry, avoiding the growth of bacteria, and improving the cleanliness of the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] FIG1 is a schematic diagram of a partial structure of a base station according to an embodiment.

[0025] FIG. 2 is a schematic structural diagram of the base station in FIG. 1 from another perspective.

[0026] FIG. 3 is a schematic diagram of the structure of the installation body in FIG. 1 after the clean water tank and the sewage tank are installed.

[0027] FIG. 4 is a schematic structural diagram of the base station in FIG. 1 from another perspective.

[0028] FIG. 5 is a partial enlarged view of portion A in FIG. 4 .

[0029] FIG. 6 is a schematic structural diagram of the installation body in FIG. 1 .

[0030] FIG. 7 is a schematic structural diagram of the installation body of FIG. 4 from another viewing angle.

[0031] Description of reference numerals:

[0032] 10. Base station; 100. Installation body; 110. Installation cavity; 111. First installation room; 112. Second installation room; 120. Air suction port; 130. Sewage suction port; 140. Drain port; 150. Baffle plate; 200. Sewage collection tank body; 210. Tank body; 220. Discharge joint; 230. Installation bracket; 300. Drainage pipeline; 310. First connecting pipe; 320. Second connecting pipe; 330. First connecting piece; 340. Third connecting pipe; 350. Fourth connecting pipe; 360. Second connecting piece; 400. Air pump; 500. Sewage tank; 600. Clean water tank; 710. Air suction pipe; 720. Exhaust pipe; 730. Sewage suction pipe. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] In one embodiment, a cleaning system is provided, including a cleaning device and a base station 10. The base station 10 is provided with a working position and is configured to receive sewage discharged by the cleaning device and replenish water to the cleaning device when the cleaning device moves to the working position. In this way, the base station 10 can store sewage in the cleaning device and provide clean water to the cleaning device, so that the cleaning device has a continuous cleaning capability, thereby improving the practicality of the cleaning system.

[0035] Among them, the cleaning equipment can be set as a sweeper, a scrubber or other cleaning machines.

[0036] As shown in FIG. 1 , FIG. 2 and FIG. 3 , in one embodiment, a base station 10 is provided, comprising a mounting body 100, a sewage collecting tank body 200, a drainage pipeline 300 and an air pump 400. The mounting body 100 is provided with a mounting cavity 110 and an air suction port 120 and a sewage suction port 130 connected to the mounting cavity 110. The bottom wall of the mounting cavity 110 is provided with a drainage port 140. The air suction port 120 and the sewage suction port 130 are both configured to be connected to the sewage tank 500 when the sewage tank 500 is installed in the mounting cavity 110. The sewage collecting tank body 200 is connected to the sewage suction port 130 and is used to receive sewage discharged by the cleaning equipment. The drainage pipeline 300 connects the drainage port 140 and the sewage collecting tank body 200. The air pump 400 is provided with an air inlet and an air outlet, the air inlet is connected to the air suction port 120, and the air outlet is connected to the drainage pipeline 300. The drainage pipeline 300 between the air outlet and the drain port 140 is set as a first pipeline section, and the drainage pipeline 300 between the air outlet and the sewage collecting tank body 200 is set as a second pipeline section. The exhaust resistance of the first pipeline section is greater than the exhaust resistance of the second pipeline section.

[0037] In the base station 10 in the above embodiment, when there is water accumulation in the installation cavity 110, the water accumulation can flow to the drainage pipeline 300 through the drainage port 140, so that the water accumulation can be discharged. When the vacuum pump 400 is working, the vacuum pump 400 extracts air from the sewage tank 500 through the air inlet and the air suction port 120, and exhausts the air into the drainage pipeline 300 through the air outlet. Since the exhaust resistance of the first pipeline section is greater than the exhaust resistance of the second pipeline section, the dirty gas in the drainage pipeline 300 will be discharged from the sewage tank body 200 along the second pipeline section to the outside of the base station 10, so as to avoid the dirty gas being discharged into the base station 10 and causing damage to the circuit inside the base station 10, thereby improving the reliability of the base station 10. In addition, negative pressure will be generated when the dirty gas flows in the second pipeline section, and the accumulated water in the installation cavity 110 and the accumulated water in the drainage pipeline 300 can be discharged into the sewage collection tank 200 under the action of negative pressure, ensuring that the installation cavity 110 and the drainage pipeline 300 remain dry, avoiding the breeding of bacteria, and improving the cleanliness of the base station 10.

[0038] Specifically in this embodiment, the drain port 140 is connected to the lowest point of the bottom of the installation cavity 110. The drain pipe 300 is located between the installation body 100 and the sewage collecting tank body 200. The base station 10 also includes a sewage extraction pipe 730, and the two ends of the sewage extraction pipe 730 are respectively connected to the sewage extraction port 130 and the sewage collecting tank body 200.

[0039] Optionally, the first pipeline section is located above the second pipeline section, and the length of the first pipeline section is greater than the length of the second pipeline section. In this way, the length of the first pipeline section is longer and the exhaust direction is upward, and the exhaust resistance of the air pump 400 through the first pipeline section is larger; while the length of the second pipeline section is shorter and the exhaust direction is downward, and the exhaust resistance of the air pump 400 through the second pipeline section is smaller, ensuring that the dirty gas exhausted by the air pump 400 is exhausted along the second pipeline section, thereby improving the reliability of the base station 10.

[0040] It should be noted that, in the base station 10 of this embodiment, it has been verified through experiments that the dirty gas discharged by the vacuum pump 400 can be discharged well along the second pipeline section.

[0041] As shown in FIG. 2 , in one embodiment, the drainage pipeline 300 includes a first connecting pipe 310 having one end connected to the drainage port 140, a second connecting pipe 320 having one end connected to the sewage collecting tank 200, and a first connecting member 330. The first connecting member 330 is provided with a first end, a second end, and a third end connected to each other. The first end is connected to the other end of the first connecting pipe 310, the second end is connected to the other end of the second connecting pipe 320, and the third end is connected to the air outlet. In this way, the convenience of assembling the base station 10 is improved.

[0042] The first connecting member 330 may be configured as a three-way connector, an electromagnetic three-way valve or other connecting structures.

[0043] As shown in FIG. 2 , FIG. 4 and FIG. 5 , optionally, the sewage collecting tank body 200 includes a tank body 210 connected to the sewage extraction port 130, and a discharge joint 220 installed on the top of the tank body 210, one end of the discharge joint 220 is connected to the end of the second connecting pipe 320 away from the first connecting member 330, and the other end extends to the top of the tank body 210, so that the tank body 210 can receive the accumulated water discharged from the discharge joint 220. In this way, the relative position between the discharge joint 220 and the tank body 210 can be kept stable, ensuring that all the accumulated water discharged from the discharge joint 220 will fall into the tank body 210, thereby improving the reliability of the base station 10.

[0044] Specifically in this embodiment, the sewage collecting tank body 200 further includes a mounting bracket 230, which can be mounted on the top of one side of the tank body 210 by snap connection, screw connection, plug connection or other methods. The mounting bracket 230 can be integrally formed with the discharge joint 220.

[0045] As shown in FIG2 , optionally, the base station 10 further includes an air extraction pipe 710 and an exhaust pipe 720, the two ends of the air extraction pipe 710 are respectively connected to the air extraction port 120 and the air inlet, and the two ends of the exhaust pipe 720 are respectively connected to the air outlet and the third end. In this way, the air extraction pump 400 is connected to the installation body 100 through the air extraction pipe 710, and is connected to the drainage pipeline 300 through the exhaust pipe 720, so that the position of the air extraction pump 400 inside the base station 10 can be flexibly adjusted, and the assembly convenience of the base station 10 is also improved.

[0046] As shown in FIG. 1 , FIG. 6 and FIG. 7 , in one embodiment, a baffle plate 150 is further provided in the installation cavity 110, and the baffle plate 150 divides the installation cavity 110 into a first installation chamber 111 for installing the sewage tank 500 and a second installation chamber 112 for installing the clean water tank 600. The bottom wall of the first installation chamber 111 and the bottom wall of the second installation chamber 112 are both provided with a drain port 140. The drainage pipeline 300 further includes a third connecting pipe 340, a fourth connecting pipe 350 and a second connecting member 360, one end of the third connecting pipe 340 and one end of the fourth connecting pipe 350 are respectively connected to the two drain ports 140, and the second connecting member 360 is provided with a fourth end, a fifth end and a sixth end that are connected to each other, the fourth end is connected to the other end of the third connecting pipe 340, the fifth end is connected to the other end of the fourth connecting pipe 350, and the sixth end is connected to the end of the first connecting pipe 310 away from the first connecting member 330. In this way, the accumulated water in the first installation chamber 111 and the second installation chamber 112 can be discharged into the sewage collection tank body 200 through the corresponding drainage ports 140 and drainage pipes 300 , thereby improving the practicality of the base station 10 .

[0047] The second connecting member 360 may be configured as a three-way connector, an electromagnetic three-way valve or other connecting structures.

[0048] Specifically in this embodiment, the installation body 100, the air extraction port 120, the sewage extraction port 130, the drain port 140 and the baffle plate 150 can all be integrally formed. The installation body 100 is also provided with a water extraction port communicated with the installation cavity 110. The water extraction port is configured to communicate with the clean water tank 600 when the clean water tank 600 is installed in the second installation chamber 112. The base station 10 also includes a water extraction pipeline communicated with the water extraction port. The water extraction pipeline is configured to communicate with the cleaning equipment when the cleaning equipment moves to the working position so as to be able to deliver water to the cleaning equipment.

[0049] As shown in FIG2 , optionally, the first connecting pipe 310 is located above the second connecting pipe 320. The third connecting pipe 340 and the fourth connecting pipe 350 are both located above the first connecting pipe 310. In this way, the exhaust directions of the first connecting pipe 310, the third connecting pipe 340 and the fourth connecting pipe 350 are all upward, further increasing the resistance encountered by the dirty gas when flowing in the first pipeline section, ensuring that the dirty gas is discharged through the second pipeline section, and improving the reliability of the base station 10.

[0050] The first connecting tube 310, the second connecting tube 320, the third connecting tube 340, the fourth connecting tube 350, the air extraction tube 710, the exhaust tube 720 and the sewage extraction tube 730 can all be made of flexible materials. For example, the first connecting tube 310, the second connecting tube 320, the third connecting tube 340, the fourth connecting tube 350, the air extraction tube 710, the exhaust tube 720 and the sewage extraction tube 730 can all be set as flexible tubes such as silicone tubes.

[0051] Specifically in this embodiment, the drainage pipeline 300 has two first pipeline sections and one second pipeline section. The first connecting piece 330, the first connecting pipe 310, the second connecting piece 360 ​​and the third connecting pipe 340 are connected in sequence to form a first pipeline section. The first connecting piece 330, the first connecting pipe 310, the second connecting piece 360 ​​and the fourth connecting pipe 350 are connected in sequence to form another first pipeline section. The first connecting piece 330 is connected to the second connecting pipe 320 to form a second pipeline section.

[0052] In one embodiment, a baffle plate 150 is further provided in the installation cavity 110, and the baffle plate 150 divides the installation cavity 110 into a first installation chamber 111 for installing the sewage tank 500 and a second installation chamber 112 for installing the clean water tank 600. The bottom wall of the first installation chamber 111 and the bottom wall of the second installation chamber 112 are both provided with a drain port 140. The first connecting member 330 is also provided with a seventh end connected to the first end, and the drainage pipeline 300 also includes a fifth connecting pipe with one end connected to the seventh end, and one end of the fifth connecting pipe away from the first connecting member 330 and one end of the first connecting pipe 310 away from the first connecting member 330 are respectively connected to the two drain ports 140.

[0053] Specifically in this embodiment, the first end, the second end, the third end and the seventh end are connected to each other.

[0054] Optionally, the first connecting member 330 may be configured as a four-way structure. Thus, one four-way structure may be used instead of two three-way structures to achieve interconnection between the first connecting pipe 310, the second connecting pipe 320, the fifth connecting pipe and the exhaust pipe 720, thereby reducing the production cost of the base station 10.

[0055] Specifically in this embodiment, the drainage pipeline 300 has two first pipeline sections and one second pipeline section. The first connecting piece 330 is connected to the first connecting pipe 310 to form a first pipeline section. The first connecting piece 330 is connected to the fifth connecting pipe to form another first pipeline section. The first connecting piece 330 is connected to the second connecting pipe 320 to form a second pipeline section.

[0056] In one embodiment, a baffle plate 150 is further provided in the installation cavity 110, and the baffle plate 150 divides the installation cavity 110 into a first installation chamber 111 for installing the sewage tank 500 and a second installation chamber 112 for installing the clean water tank 600. A drain port 140 is provided on either the bottom wall of the first installation chamber 111 or the bottom wall of the second installation chamber 112. An opening for connecting the first installation chamber 111 and the second installation chamber 112 is provided on the bottom wall of the baffle plate 150. In this way, the number of drain ports 140 is reduced, and the third connecting pipe 340 and the fourth connecting pipe 350 can be reduced, thereby reducing the production cost of the base station 10.

[0057] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0062] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0063] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A base station, characterized in that: include: An installation body (100) is provided with an installation cavity (110) and an air extraction port (120) and a sewage extraction port (130) which are in communication with the installation cavity (110); a drainage port (140) is provided on the bottom wall of the installation cavity (110); and the air extraction port (120) and the sewage extraction port (130) are both configured to be in communication with the sewage tank (500) when the sewage tank (500) is installed in the installation cavity (110); A sewage collecting tank body (200) is connected to the sewage extraction port (130) and is used to collect sewage discharged by the cleaning equipment; A drainage pipeline (300) connecting the drainage port (140) and the sewage collecting tank (200); An air pump (400) is provided with an air inlet and an air outlet, the air inlet being in communication with the air extraction port (120), and the air outlet being in communication with the drainage pipeline (300); The drainage pipeline (300) between the air outlet and the drainage port (140) is set as a first pipeline section, and the drainage pipeline (300) between the air outlet and the sewage collecting tank body (200) is set as a second pipeline section, and the exhaust resistance of the first pipeline section is greater than the exhaust resistance of the second pipeline section.

2. The base station according to claim 1, characterized in that The first pipeline section is located above the second pipeline section, and the length of the first pipeline section is greater than the length of the second pipeline section.

3. The base station according to claim 1 or 2, characterized in that: The drainage pipeline (300) comprises a first connecting pipe (310) having one end connected to the drainage port (140), a second connecting pipe (320) having one end connected to the sewage collecting tank (200), and a first connecting member (330), wherein the first connecting member (330) is provided with a first end, a second end and a third end connected to each other, wherein the first end is connected to the other end of the first connecting pipe (310), the second end is connected to the other end of the second connecting pipe (320), and the third end is connected to the air outlet.

4. The base station according to claim 3, characterized in that The sewage collecting tank body (200) comprises a tank body (210) connected to the sewage extraction port (130), and a discharge joint (220) installed on the top of the tank body (210); one end of the discharge joint (220) is connected to an end of the second connecting pipe (320) away from the first connecting member (330), and the other end extends to the top of the tank body (210), so that the tank body (210) can receive the accumulated water discharged from the discharge joint (220).

5. The base station according to claim 3, characterized in that: The base station (10) further comprises an air extraction pipe (710) and an exhaust pipe (720), wherein two ends of the air extraction pipe (710) are respectively connected to the air extraction port (120) and the air inlet, and two ends of the exhaust pipe (720) are respectively connected to the air outlet and the third end.

6. The base station according to claim 3, characterized in that A baffle plate (150) is further provided in the installation cavity (110), and the baffle plate (150) divides the installation cavity (110) into a first installation chamber (111) for installing the sewage tank (500) and a second installation chamber (112) for installing the clean water tank (600). The bottom wall of the first installation chamber (111) and the bottom wall of the second installation chamber (112) are both provided with the drainage port (140). The drainage pipeline (300) further comprises a third connecting pipe (340), a fourth connecting pipe (350) and a A second connecting member (360), one end of the third connecting pipe (340) and one end of the fourth connecting pipe (350) are respectively connected to the two drain outlets (140), and the second connecting member (360) is provided with a fourth end, a fifth end and a sixth end which are connected to each other, the fourth end is connected to the other end of the third connecting pipe (340), the fifth end is connected to the other end of the fourth connecting pipe (350), and the sixth end is connected to an end of the first connecting pipe (310) away from the first connecting member (330).

7. The base station according to claim 6, characterized in that The first connecting tube (310) is located above the second connecting tube (320), and the third connecting tube (340) and the fourth connecting tube (350) are both located above the first connecting tube (310).

8. The base station according to claim 3, characterized in that A baffle plate (150) is further provided in the installation cavity (110), and the baffle plate (150) divides the installation cavity (110) into a first installation chamber (111) for installing the sewage tank (500), and a second installation chamber (112) for installing the clean water tank (600). The bottom wall of the first installation chamber (111) and the bottom wall of the second installation chamber (112) are both provided with the drainage port (140). The first connecting member (330) is further provided with a seventh end connected to the first end. The drainage pipeline (300) further comprises a fifth connecting pipe having one end connected to the seventh end. One end of the fifth connecting pipe away from the first connecting member (330) and one end of the first connecting pipe (310) away from the first connecting member (330) are respectively connected to the two drainage ports (140).

9. The base station according to claim 3, characterized in that: A baffle plate (150) is further provided in the installation cavity (110), the baffle plate (150) dividing the installation cavity (110) into a first installation chamber (111) for installing the sewage tank (500) and a second installation chamber (112) for installing the clean water tank (600), the drain port (140) being provided on either the bottom wall of the first installation chamber (111) or the bottom wall of the second installation chamber (112), and an opening for connecting the first installation chamber (111) and the second installation chamber (112) being provided on the bottom wall of the baffle plate (150).

10. A cleaning system, characterized in that: The base station (10) comprises a cleaning device and any one of claims 1 to 9, wherein the base station (10) is provided with a working position and is configured to receive sewage discharged by the cleaning device and replenish water to the cleaning device when the cleaning device moves to the working position.

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