Sewage collection box assembly, maintenance base station and cleaning system

Abstract

The present application provides a sewage collection box assembly, a maintenance base station and a cleaning system. The sewage collection box assembly includes a sewage collection box and a separation device. The sewage collection box is provided with a sewage inlet, an exhaust port, and a cavity communicating between the sewage inlet and the exhaust port. The separation device is installed near the top in the cavity of the sewage collection box. The separation device is connected between the sewage inlet and the exhaust port. The exhaust port is used to connect to a fan assembly. The fan assembly is used to generate negative pressure through the exhaust port, so that sewage enters the separation device through the sewage inlet under the action of negative pressure, and enters the cavity of the sewage collection box after the solid-liquid separation of the separation device. The above sewage collection box assembly realizes the function of separately collecting solid waste and sewage, and the separation device does not need to occupy space outside the sewage collection box, which is beneficial to the miniaturization of the maintenance base station.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment, and particularly to a sewage collection box assembly, a maintenance base station, and a cleaning system. Background Art

[0002] With the development of the economy and the improvement of living standards, various cleaning robots are widely used in household cleaning tasks, such as floor-sweeping robots, floor-washing robots, or window-cleaning robots, etc. In some cases, a maintenance base station can be used to clean and maintain the cleaning robot. The maintenance base station is equipped with a sewage collection box assembly. However, during the cleaning and maintenance process, complex situations may involve a mixture of solid waste and liquid at the same time. The solid waste and liquid mixture remaining on the maintenance base station are likely to cause odor and pollution problems. Currently, the sewage collection box assembly lacks a reasonable structural design to handle solid waste and liquid simultaneously, which brings great difficulties to the later maintenance of users. Summary of the Invention

[0003] Embodiments of this application provide a maintenance base station and a cleaning system to solve the technical problem that the current sewage collection box assembly lacks a reasonable structural design to handle solid waste and liquid simultaneously.

[0004] Embodiments of this application provide a sewage collection box assembly. The sewage collection box assembly includes a sewage collection box and a separation device. The sewage collection box is provided with a sewage inlet, an exhaust port, and a cavity communicating between the sewage inlet and the exhaust port. The separation device is installed near the top in the cavity of the sewage collection box. The separation device is connected between the sewage inlet and the exhaust port. The exhaust port is used to connect to a fan assembly. The fan assembly is used to generate negative pressure through the exhaust port, so that sewage enters the separation device through the sewage inlet under the action of negative pressure, and enters the cavity of the sewage collection box after the solid-liquid separation of the separation device.

[0005] Embodiments of this application further provide a maintenance base station for maintaining a cleaning device. The maintenance base station includes a base station body, a sewage inlet pipeline, a fan assembly, and the above-mentioned sewage collection box assembly. The sewage collection box is detachably installed on the base station body. The sewage inlet pipeline is installed on the base station body and communicates with the sewage inlet. The fan assembly is installed on the base station body and communicates with the exhaust port.

[0006] Embodiments of this application further provide a cleaning system. The cleaning system includes a cleaning device and the above-mentioned maintenance base station.

[0007] Different from the prior art, the above sewage collection tank assembly, maintenance base station and cleaning system are installed in the cavity of the sewage collection tank near the top through the separation device. The separation device is connected between the sewage inlet and the exhaust port, and the fan assembly is pneumatically connected to the exhaust port. The fan assembly is used to generate negative pressure, and the fan assembly can generate a strong suction force, so that sewage enters the separation device through the sewage inlet under the action of negative pressure, and enters the sewage collection tank after the solid-liquid separation of the separation device. The separation device can play a role in separating solid waste, thus avoiding the problems of peculiar smell and pollution caused by the mixture of solid waste and liquid remaining in the sewage collection tank, realizing the function of separating solid waste and sewage by the sewage collection tank assembly, and the separation device does not need to occupy the space outside the sewage collection tank, which is beneficial to the miniaturization of the maintenance base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0009] Figure 1 is a schematic structural diagram of a maintenance base station provided by an embodiment of the present application Figure 1 ;

[0010] Figure 2 is a top view structural schematic diagram of the sewage collection tank assembly provided by an embodiment of the present application;

[0011] Figure 3 is Figure 2 the cross-sectional schematic diagram at A-A in Figure 1 ;

[0012] Figure 4 is a disassembled structural schematic diagram of the sewage collection tank assembly provided by an embodiment of the present application;

[0013] Figure 5 is Figure 2 the cross-sectional schematic diagram at B-B in

[0014] Figure 6 is a transverse cross-sectional structural schematic diagram of the sewage collection tank assembly provided by an embodiment of the present application;

[0015] Figure 7 is Figure 2 the cross-sectional schematic diagram at A-A in Figure 2 ;

[0016] Figure 8 is a disassembled structural schematic diagram of the separation device of the sewage collection tank assembly provided by an embodiment of the present application;

[0017] Figure 9 is Figure 3 a schematic enlarged view of a local structure in

[0018] Figure 10 a schematic structural view of a cleaning system provided by an embodiment of the present application. Detailed implementation manners

[0019] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0020] It should be noted that if there is no conflict, the various features in the embodiments of the present application can be combined with each other and are all within the protection scope of the present application. In addition, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the device or the flowchart. Furthermore, the terms "first", "second", "third", etc. used in the present application do not limit the data and execution order, but only distinguish the same items or similar items with basically the same functions and effects.

[0021] Please refer to Figure 1 , an embodiment of the present application provides a maintenance base station 100, and the maintenance base station 100 is used to maintain a cleaning device. The maintenance base station 100 includes a base station body 200, a sewage inlet pipe 15, a fan assembly 30, and a sewage collection tank assembly 101.

[0022] The sewage collection tank assembly 101 includes a sewage collection tank 10 and a separation device 20. The sewage collection tank 10 is provided with a sewage inlet 40, an exhaust port 50, and a cavity 60 communicating between the sewage inlet 40 and the exhaust port 50. The separation device 20 is installed near the top in the cavity 60 of the sewage collection tank 10. The separation device 20 is communicated between the sewage inlet 40 and the exhaust port 50. The exhaust port 50 is used to communicate with the fan assembly 30. The fan assembly 30 is used to generate negative pressure through the exhaust port 50, so that sewage enters the separation device 20 through the sewage inlet 40 under the action of negative pressure, and enters the cavity 60 of the sewage collection tank 10 after the solid-liquid separation of the separation device 20.

[0023] The sewage collection tank 10 is detachably mounted on the base station body 200. The sewage inlet pipe 15 is mounted on the base station body 200 and communicates with the sewage inlet 40. The fan assembly 30 is mounted on the base station body 200 and communicates with the exhaust port 50.

[0024] Different from the prior art, in the above-mentioned maintenance base station 100, the separation device 20 is installed near the top in the cavity 60 of the sewage collection tank 10. The separation device 20 is connected between the sewage inlet 40 and the exhaust port 50. The fan assembly 30 is pneumatically connected to the exhaust port 50. The fan assembly 30 is used to generate negative pressure. The fan assembly 30 can generate a strong suction force, so that sewage enters the separation device 20 through the sewage inlet 40 under the action of negative pressure, and enters the sewage collection tank 10 after the solid-liquid separation of the separation device 20. The separation device 20 can play a role in separating solid waste, thus avoiding the problems of peculiar smell and pollution caused by the mixture of solid waste and liquid remaining in the sewage collection tank 10, realizing the function of the sewage collection tank assembly 101 to separately collect solid waste and sewage, and the separation device 20 does not need to occupy the space outside the sewage collection tank 10, which is beneficial to the miniaturization of the maintenance base station 100.

[0025] The base station body 200 can play a supporting role for the sewage collection tank 10. The sewage collection tank 10 is detachably mounted on the base station body 200. For example, an installation cavity is provided on the base station body 200, and the sewage collection tank 10 is detachably mounted in the installation cavity of the base station body 200. The sewage inlet pipe 15 is communicated with the sewage inlet 40 of the sewage collection tank 10. The sewage inlet pipe 15 is used to suck sewage or garbage under the negative pressure suction of the fan assembly 30.

[0026] In some embodiments, the maintenance base station 100 can directly suck the sewage collected by the cleaning robot into the sewage collection tank 10 through the sewage inlet pipe 15. In this embodiment, a docking portion is formed at one end of the sewage inlet pipe 15 away from the sewage collection tank 10. The docking portion is used to dock with the cleaning robot. The cleaning robot is provided with a sewage collection container and a docking valve pneumatically connected to the sewage collection container. When the cleaning robot moves close to the maintenance base station 100, the docking valve of the cleaning robot can be docked and communicated with the docking portion of the sewage inlet pipe 15 to establish a fluid channel connecting the sewage collection container and the sewage collection tank 10. The fan assembly 30 can drive the fluid in the sewage collection container to be transferred into the sewage collection tank 10 through the fluid channel by negative pressure.

[0027] In another embodiment, the maintenance base station 100 can provide cleaning liquid to clean and maintain the cleaning robot. Sewage may be generated during the cleaning and maintenance process. The maintenance base station 100 can suck the sewage into the sewage collection tank 10 through the sewage inlet pipe 15. In this embodiment, a sewage collection trough is provided in the base station body 200, and the sewage collection trough is used to receive the sewage generated during the cleaning and maintenance of the cleaning robot. One end of the sewage inlet pipe 15 communicates with the sewage collection trough, and the other end communicates with the sewage collection tank 10. The fan assembly 30 can drive the fluid in the sewage collection trough to be transferred into the sewage collection tank 10 through the sewage inlet pipe by negative pressure.

[0028] The fan assembly 30 includes a fan and a wind guiding channel. One end of the wind guiding channel is pneumatically connected to the separation device 20, and the other end is arranged away from the separation device 20. The fan is installed in the wind guiding channel, and the fan can generate negative pressure in the wind guiding channel to suck sewage into the separation device 20.

[0029] The separation device 20 is installed at the top position of the sewage collection tank 10, so that the separation device 20 is at a relatively high position, and the liquid storage cavity of the sewage collection tank 10 is at a relatively low position. The liquid processed by the separation device 20 can automatically flow into the liquid storage cavity of the sewage collection tank 10 under its own gravity.

[0030] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , wherein the separation device 20 includes a sewage storage container 21. The sewage storage container 21 is communicated with the sewage inlet 40. The sewage storage container 21 is provided with an air outlet side portion 211 and a filter screen 212 arranged on the air outlet side portion 211. The sewage storage container 21 is communicated with the cavity 60 and the exhaust port 50 through the air outlet side portion 211. The sewage storage container 21 is accommodated in the cavity of the sewage collection tank 10, which is beneficial to realizing the miniaturization of the maintenance base station 100.

[0031] When the fan assembly 30 operates to generate a negative pressure suction effect, sewage can first enter the sewage storage container 21 from the sewage inlet 40 under the negative pressure. The sewage can flow through the air outlet side portion 211 along with the gas in the sewage storage container 21. The filter screen 212 on the air outlet side portion 211 filters the sewage, so that the solid waste in the sewage cannot pass through the air outlet side portion 211 and is separated in the sewage storage container 21. That is, the sewage storage container 21 can collect the solid waste in the sewage. In addition, the sewage passing through the air outlet side portion 211 falls to the bottom of the cavity 60 under its own gravity, which can prevent the sewage from being attracted by the suction force of the fan assembly 30 and entering the fan assembly 30, and prevent the fan assembly 30 from being damaged by moisture.

[0032] The sewage storage container 21 is detachably installed on the sewage collection box 10. When the solid waste in the sewage storage container 21 reaches a certain capacity, the user can detach the sewage storage container 21 from the sewage collection box 10, which is convenient for cleaning the solid waste in the sewage storage container 21.

[0033] The shape of the sewage storage container 21 is not limited herein. The sewage storage container 21 can be any one of a square shape, a cylindrical shape, a special shape, etc. Those skilled in the art can set the shape according to actual needs.

[0034] The air outlet side portion 211 is generally in a plate shape. For example, the air outlet side portion 211 can be any one of a flat plate shape, a curved plate shape, a special-shaped plate shape, etc. The filter screen 212 on the air outlet side portion 211 can be any one of a metal filter screen 212, a plastic filter screen 212, or a HEPA filter, etc.

[0035] In some embodiments, the air outlet side portion 211 can be arranged relative to the side wall of the sewage collection box 10. In other embodiments, the air outlet side portion 211 can also be arranged relative to the bottom wall of the sewage collection box 10. Those skilled in the art can set it according to actual needs.

[0036] Please refer to Figure 1 、 Figure 2 and Figure 5 In some embodiments, a liquid storage space 70 is formed between the bottom of the sewage storage container 21 and the bottom of the sewage collection box 10. The air outlet side portion 211 is opposite to and spaced from the side wall of the sewage collection box 10, so as to form an air outlet channel 213 communicating with the liquid storage space 70 between the air outlet side portion 211 and the side wall of the sewage collection box 10.

[0037] In this embodiment, the liquid storage space 70 is located below the sewage storage container 21, that is, the liquid storage space 70 is in a lower position compared to the sewage storage container 21. When the fan assembly 30 operates normally to generate a negative pressure suction effect, the sewage and gas in the sewage extraction container flow through the air outlet side portion 211 under the negative pressure. Among them, the sewage directly flows downward into the liquid storage space 70 under the action of its own gravity, while the gas continues to flow toward the air inlet side portion under the negative pressure, thereby realizing the separation of sewage and gas, avoiding the continuous flow of sewage toward the air duct structure 22 under the negative pressure, and further preventing the fan assembly 30 from being damaged due to moisture.

[0038] The air outlet side portion 211 extends substantially in the height direction of the sewage collection box 10, then the air outlet channel 213 extends substantially in the height direction of the sewage collection box 10. The distance between the air outlet side portion 211 and the side wall of the sewage collection box 10 satisfies a preset distance threshold, and the preset distance threshold can be 10 mm - 50 mm. Of course, in other embodiments, those skilled in the art can also set the preset distance threshold according to actual needs.

[0039] Since the air outlet side portion 211 is opposite to and close to the side wall of the sewage collection box 10, the air outlet direction of the air outlet side portion 211 faces the side wall of the sewage collection box 10. The side wall of the sewage collection box 10 can buffer and decelerate the airflow flowing out from the air outlet side portion 211, effectively avoiding the situation where wet garbage blocks the filter screen 212 and causes the failure of solid-liquid separation, and at the same time helping to reduce noise. The air outlet side portion 211 has a relatively large air outlet area. The method of sucking sewage laterally from the sewage storage container 21 through the air outlet side portion 211 also helps to avoid the situation where wet garbage blocks the filter screen 212 and causes the failure of solid-liquid separation.

[0040] Please refer to Figure 1 、 Figure 2 and Figure 5 , further, the sewage storage container 21 is provided with two relatively arranged air outlet side portions 211, and the two air outlet side portions 211 are respectively adjacent to the opposite side walls of the sewage collection box 10 to correspondingly form two air outlet channels 213, and the sewage inlet 40 is located between the two air outlet side portions 211. In this embodiment, the setting of the two air outlet side portions 211 enables the sewage storage container 21 to have a larger air outlet area. When the fan assembly 30 operates to generate a negative pressure suction effect, the gas in the sewage storage container 21 forms two airflows under the negative pressure and respectively passes through the two air outlet side portions 211, which can disperse solid garbage in two directions, facilitating the avoidance of the situation where wet garbage blocks the filter screen 212 and causes the failure of solid-liquid separation; at the same time, it can also disperse two paths of sewage in two directions respectively through the two air outlet side portions 211, which also helps to quickly drain water to the cavity 60.

[0041] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , Further, the sewage storage container 21 is further provided with a diversion bottom plate 214 arranged in the horizontal direction. The diversion bottom plate 214 is opposite to and spaced from the bottom of the sewage collection box 10. A liquid storage space 70 is formed between the diversion bottom plate 214 and the bottom of the sewage collection box 10. The air outlet side portion 211 is connected to the edge of the diversion bottom plate 214. The diversion bottom plate 214 is used to guide sewage and air flow to the air outlet side portion 211.

[0042] In this embodiment, the diversion bottom plate 214 is arranged to expand in the horizontal direction. The diversion bottom plate 214 has a large expanded area and can carry more solid waste in the direction of gravity. The diversion bottom plate 214 can play a role in separating the liquid storage space 70 and the inner cavity of the sewage storage container 21. The diversion bottom plate 214 can carry a large amount of solid waste and is not easily blocked by the waste, facilitating the user to clean the solid waste in the sewage storage container 21. When the fan assembly 30 works to generate a negative pressure suction effect, the sewage and solid waste in the sewage storage container 21 can move along the diversion bottom plate 214 towards the air outlet side portion 211. The diversion bottom plate 214 can play a certain frictional resistance role on the solid wet waste, preventing a large amount of solid wet waste from quickly impacting the filter screen 212 of the air outlet side portion 211 with the sewage, and helping to avoid the situation where the wet waste blocks the filter screen 212 and causes the solid-liquid separation to fail.

[0043] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 , Further, the sewage storage container 21 is further provided with two relatively arranged diversion side plates 215. The two diversion side plates 215 are respectively adjacent to the opposite side walls of the sewage collection box 10. The air outlet side portion 211 is connected to one side of the two wind blocking side plates. The two diversion side plates 215 guide sewage and air flow to the air outlet side portion 211.

[0044] In this embodiment, the diversion bottom plate 214 is connected to the two diversion side plates 215. The connection manner between the diversion bottom plate 214 and the two diversion side plates 215 can have various forms. For example, the diversion bottom plate 214 can be integrally injection-molded with the two diversion side plates 215, or the diversion bottom plate 214 can be detachably connected to the two diversion side plates 215 through a snap structure, or the diversion bottom plate 214 can be fixedly connected to the two diversion side plates 215 through screw connection. This is not limited herein, and those skilled in the art can set it according to actual needs.

[0045] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figure 5 Further, the sewage collection box 10 includes a box body 13 and a box cover 14. The box cover 14 is covered with the box body 13. The box cover 14 and the box body 13 enclose to form the cavity 60. The sewage storage container 21 is connected to the box cover 14. The sewage storage container 21 and the box cover 14 enclose to form a sewage storage cavity 216. The sewage storage cavity 216 communicates with the cavity 60 through the air outlet side portion 211. The air duct structure 22 is installed in the sewage storage cavity 216.

[0046] In this embodiment, the box body 13 is a container with an open end. The box cover 14 is covered with the open end of the box body 13, so that the box cover 14 and the box body 13 enclose to form the cavity 60. A sealing ring 102 is provided between the box cover 14 and the box body 13 to make the box cover 14 and the box body 13 be sealed and connected. The box cover 14 can be connected to the box body 13 by any one or a combination of snap connection, screw connection or magnetic adsorption. The sewage storage container 21 is a container with an open end. The box cover 14 covers the open end of the sewage storage container 21, so that the sewage storage container 21 and the box cover 14 enclose to form the sewage storage cavity 216. The sewage storage container 21 can be connected to the box cover 14 by any one or a combination of snap connection, screw connection or magnetic adsorption. In other embodiments, the sewage storage container 21 can also be a closed container structure. In other embodiments, the sewage storage container 21 can also be integrally provided with the box cover 14. For example, the sewage storage container 21 and the box cover 14 are integrally injection molded.

[0047] When the box cover 14 is detached from the box body 13, the sewage storage container 21 can be detached from the box body 13 together with the box cover 14, so as to facilitate the cleaning of the garbage collected by the sewage storage container 21 and also facilitate the cleaning of the sewage in the box body 13.

[0048] In some embodiments, a movable cover plate can be provided on the sewage storage container 21 or the box cover 14. By opening the movable cover plate, the sewage storage cavity 216 of the sewage storage container 21 can be opened, so as to facilitate the cleaning of the sewage storage cavity 216 of the sewage storage container 21. By closing the movable cover plate, the sewage storage cavity 216 of the sewage storage container 21 can be closed.

[0049] In other embodiments, by detaching and separating the open end of the sewage storage container 21 from the box cover 14, the sewage storage cavity 216 of the sewage storage container 21 can also be opened.

[0050] Please refer to Figure 3 and Figure 6 Further, the separation device 20 further includes an air duct structure 22 connecting the sewage storage container 21. One end of the air duct structure 22 is communicated with the exhaust port 50, and an air inlet side portion 222 is provided at the end of the air duct structure 22 away from the exhaust port 50. The air duct structure 22 is communicated with the cavity 60 through the air inlet side portion 222.

[0051] In this embodiment, the air duct structure 22 is received in the sewage storage container 21, so that the air duct structure 22 can be arranged by using the inner cavity space of the sewage storage container 21, making the overall structure formed by the air duct structure 22 and the sewage storage container 21 compact, minimizing the space occupied in the sewage collection box 10, and thus enabling the sewage collection box 10 to reserve sufficient remaining space for storing sewage. In other embodiments, part of the air duct structure 22 is received in the sewage storage container 21, and part of the air duct structure 22 extends out of the sewage storage container 21; or, the air duct structure 22 is located outside the sewage storage container 21, or the air duct structure 22 is received in the cavity between the sewage storage container 21 and the sewage collection box 10.

[0052] In this embodiment, since an air inlet side portion 222 is provided at the end of the air duct structure 22 away from the fan assembly 30, the air duct structure 22 is communicated with the cavity 60 through the air inlet side portion 222, and the sewage storage container 21 is communicated with the cavity 60 through the air outlet side portion 211, the sewage inlet 40, the sewage storage container 21, the cavity 60 and the air duct structure 22 are sequentially communicated to form an extended flow path. In other embodiments, the separation device 20 may not be provided with the air duct structure 22. The air guiding channel of the fan assembly 30 is directly communicated with the closed cavity 60.

[0053] When the fan assembly 30 operates to generate a negative pressure suction effect, the gas in the sewage storage container 21 can be finally discharged to the external environment through the above extended flow path under the negative pressure. On the other hand, after the gas in the sewage storage container 21 passes through the air outlet side portion 211 under the negative pressure, it briefly passes through the cavity 60 and still flows to the air inlet side portion 222 of the air duct structure 22. Compared with the way that the fan assembly 30 directly sucks the gas in the sewage storage container 21, the path length of the above extended flow path is relatively long, which is beneficial to improving the dehumidification effect of the sucked gas and preventing the fan assembly 30 from being damaged by moisture.

[0054] In some embodiments, the air duct structure 22 is integrally provided with the lid 14 of the sewage collection tank 10. For example, the air duct structure 22 and the lid 14 of the sewage collection tank 10 are integrally injection-molded, or the air duct structure 22 and the lid 14 of the sewage collection tank 10 are connected by hot melting, etc. This can reduce the number of disassembled parts, simplify the product assembly difficulty and reduce the product manufacturing cost. In other embodiments, the air duct structure 22 can also be fixedly connected to the lid 14 of the sewage collection tank 10 by means of screw connection, snap connection or riveting, etc.

[0055] Please refer to Figure 3 、 Figure 5 and Figure 6 , further, the air inlet side portion 222 and the air outlet side portion 211 face different positions on the side wall of the sewage collection tank 10 respectively. The air inlet side portion 222 is opposite to and spaced from the side wall of the sewage collection tank 10, so as to form an air inlet passage 217 communicating with the air outlet passage 213 between the air inlet side portion 222 and the side wall of the sewage collection tank 10.

[0056] In this embodiment, the air duct structure 22 is received in the sewage storage container 21, and the air duct structure 22 horizontally spans between the opposite side walls of the inner cavity of the sewage storage container 21. Wherein, the air duct structure 22 horizontally spans on the two diversion side plates 215, that is, the two ends of the air duct structure 22 are respectively adjacent to the two diversion side plates 215, so that the air duct structure 22 can be directly communicated with the liquid storage space 70. Then, the fan assembly 30 can indirectly generate a negative pressure suction effect on the sewage pumping container through the air duct structure 22 and the liquid storage space 70. Also, since the air outlet passage 213 and the air inlet passage 217 are formed on the peripheral side of the sewage storage container 21, the positions of the air outlet passage 213 and the air inlet passage 217 are higher than the position of the liquid storage space 70, so that sewage enters the liquid storage space 70 from the air outlet passage 213 under the action of its own gravity, and the sewage cannot rise through the air inlet passage 217 into the air duct structure 22, thereby preventing the fan assembly 30 from being affected by moisture.

[0057] The air duct structure 22 horizontally spans between the opposite side walls of the inner cavity of the sewage storage container 21. The air duct structure 22 can utilize the space in the inner cavity of the sewage storage container 21 to expand to a sufficient length, so as to form an air duct structure 22 with a sufficient length, which is beneficial to increasing the length of the above-mentioned extended flow path and improving the dehumidification effect on the suction gas.

[0058] Please refer to Figure 3 、 Figure 5 and Figure 6, in some embodiments, the dirt collection box 10 has a first side wall 11 and a second side wall 12 connecting the first side wall 11. The first side wall 11 and the second side wall 12 are arranged at an angle. The air outlet side portion 211 is opposite to and spaced from the first side wall 11, and the air inlet side portion 222 is opposite to and spaced from the second side wall 12. Among them, the first side wall 11 and the second side wall 12 are arranged at a right angle, or the first side wall 11 and the second side wall 12 are arranged at an acute angle, or the first side wall 11 and the second side wall 12 are arranged at an obtuse angle, which is not limited herein. The air outlet side portion 211 is arranged to expand relative to the first side wall 11, so that an air outlet channel 213 is formed between the air outlet side portion 211 and the first side wall 11. A guiding side plate 215 is arranged to expand relative to the second side wall 12, and there is a gap between the guiding side plate 215 and the second side wall 12, and the air inlet channel 217 forms a part of the gap. Among them, the air outlet channel 213 extends along the first side wall 11, the air inlet channel 217 extends along the second side wall 12, and the horizontal extension direction of the air outlet channel 213 and the horizontal extension direction of the air inlet channel 217 are arranged at an angle, so that after the air flow flows out from the air outlet side portion 211, the air flow flows along the air outlet channel 213 and turns to the air inlet channel 217, and then flows along the air inlet channel 217 to the air inlet side portion 222, so that the water vapor in the air flow is fully released, which is beneficial to improving the dehumidification effect on the air flow.

[0059] Please refer to Figure 7 and Figure 8 , further, the air duct structure 22 is provided with a cyclone chamber 221 between its two ends. The separation device 20 further includes a cyclone structure 223, and the cyclone structure 223 is installed in the cyclone chamber 221. The cyclone structure 223 can guide the air flow entering from the air inlet side portion 222 to make a rotational centrifugal motion and then flow to the fan assembly 30.

[0060] In this embodiment, the cyclone chamber 221 has a closed end facing the bottom of the sewage collection tank 10 and an open end disposed opposite to the closed end. The cyclone structure 223 is detachably mounted in the cyclone chamber 221 through the open end. The open end can penetrate through the tank cover 14, so that the cyclone structure 223 can be taken out from the surface of the tank cover 14 for maintenance. The cyclone structure 223 is provided with an air inlet channel 224 and an air outlet channel 225, and a plurality of cyclone cone tubes 226 communicating between the air inlet channel 224 and the air outlet channel 225. The air inlet channel 224 communicates with the air inlet side portion 222 of the air duct structure 22, and the air outlet channel 225 communicates with the air outlet 50. The plurality of cyclone cone tubes 226 are arranged facing the bottom of the cyclone chamber 221, and a separation chamber 227 is provided on the side where the cyclone structure 223 faces the plurality of cyclone cone tubes. The air outlet channel 225 communicates with the separation chamber 227 to communicate with the plurality of cyclone cone tubes 226 through the separation chamber 227. Air flow can enter the air inlet channel 224 of the cyclone structure 223 from the air inlet side portion 222, and then enter the plurality of cyclone cone tubes 226 to perform a centrifugal rotation movement, so as to fully separate water vapor in the separation chamber 227, achieving a dehumidification effect. The air flow passing through the plurality of cyclone cone tubes 226 continues to flow to the air outlet 50 through the air outlet channel 225 to pass through the fan assembly 30. Among them, the number of the cyclone cone tubes 226 can be one, or two, or more than two, which is not limited herein, and those skilled in the art can set it according to actual needs.

[0061] Please refer to Figure 9 , further, the tank cover 14 is provided with an air outlet 50 for docking with the fan assembly 30. One end of the air duct structure 22 communicates with the air outlet 50, and the end of the air duct structure 22 away from the air outlet 50 is provided with the air inlet side portion 222. The position of the air inlet side portion 222 and the position of the air outlet 50 form a height difference in the height direction of the sewage collection tank 10. Among them, by setting the air outlet 50 at a relatively high position and the air inlet side portion 222 at a relatively low position, it is beneficial to increase the flow path length of the air flow from the air inlet side portion 222 to the air outlet 50, slow down the air flow velocity, and is beneficial to noise reduction and dehumidification.

[0062] Please refer to Figure 10 , the embodiment of the present application further provides a cleaning system 300, and the cleaning system 300 includes a cleaning device 301 and the maintenance base station 100 as described above.

[0063] Regarding the cleaning device 301 provided in the embodiments of the present application, it can be understood that the cleaning device 301 can be a cleaning robot. For example, the cleaning device 301 can be any one of a floor sweeping robot, a mopping and sweeping integrated robot, a floor washing robot, a floor scrubbing robot, etc. The cleaning device 301 can also be a handheld cleaning device 301. For example, the cleaning device 301 can be any one of a handheld floor scrubber, a handheld floor washer, a handheld window cleaner, etc.

[0064] For the cleaning device 301 being a cleaning robot, the cleaning device 301 can be designed to autonomously plan a path on the ground or can be designed to move on the ground in response to a remote control instruction. The cleaning device 301 can navigate through a combination of one or several of a gyroscope, an accelerometer, a camera, GPS positioning, and / or lidar, etc. For example, the cleaning device 301 can be provided with a lidar protruding on the top surface, scan the surrounding environment through the lidar to collect obstacle data, establish an environmental map based on the obstacle data, and can perform real-time positioning according to the environmental map to facilitate planning a cleaning path.

[0065] The cleaning device 301 can autonomously navigate to the maintenance base station 100, so that the cleaning device 301 is docked with the maintenance base station 100 to facilitate the maintenance base station 100 to maintain the cleaning device 301.

[0066] For the cleaning device 301 being a handheld cleaning device 301, the user can manually place the cleaning device 301 on the maintenance base station 100 for maintenance.

[0067] Different from the prior art, the above-mentioned sewage collection box assembly 101, maintenance base station 100, and cleaning system 300 are installed in the cavity 60 of the sewage collection box 10 near the top through the separation device 20. The separation device 20 is connected between the sewage inlet 40 and the exhaust port 50, and the fan assembly 30 is pneumatically connected to the exhaust port 50. The fan assembly 30 is used to generate negative pressure. The fan assembly 30 can generate a strong suction force, so that sewage enters the separation device 20 through the sewage inlet 40 under the action of negative pressure, and enters the sewage collection box 10 after the solid-liquid separation of the separation device 20. The separation device 20 can play a role in separating solid garbage, thus avoiding the problems of odor and pollution caused by the mixture of solid garbage and liquid remaining in the sewage collection box 10, realizing the function of the sewage collection box assembly 101 to separately collect solid garbage and sewage, and the separation device 20 does not need to occupy space outside the sewage collection box 10, which is beneficial to the miniaturization of the maintenance base station 100.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present application as described above. For the sake of brevity, they are not provided in detail; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A sewage collection box assembly, characterized in that, The sewage collection tank assembly includes a sewage collection tank and a separation device. The sewage collection tank is provided with a sewage inlet, an exhaust port, and a cavity communicating between the sewage inlet and the exhaust port. The separation device is installed near the top in the cavity of the sewage collection tank. The separation device is connected between the sewage inlet and the exhaust port. The exhaust port is used to connect to a fan assembly. The fan assembly is used to generate negative pressure through the exhaust port, so that sewage enters the separation device through the sewage inlet under the action of negative pressure, and enters the cavity of the sewage collection tank after the solid-liquid separation of the separation device. The separation device includes a sewage storage container. The sewage storage container is communicated with the sewage inlet. The sewage storage container is provided with an air outlet side portion. The separation device further includes a duct structure connecting the sewage storage container. One end of the duct structure is communicated with the exhaust port. The end of the duct structure away from the exhaust port is provided with an air inlet side portion. The duct structure is communicated with the cavity through the air inlet side portion. The duct structure is accommodated in the sewage storage container. The duct structure horizontally spans between the opposite side walls of the inner cavity of the sewage storage container. The duct structure is integrally provided with the lid of the sewage collection tank. The air inlet side portion and the air outlet side portion are respectively oriented at different positions on the side wall of the sewage collection tank. The air outlet side portion is opposite to and spaced from the side wall of the sewage collection tank, so as to form an air outlet channel communicating with the cavity between the air outlet side portion and the side wall of the sewage collection tank; the air inlet side portion is opposite to and spaced from the side wall of the sewage collection tank, so as to form an air inlet channel communicating with the air outlet channel between the air inlet side portion and the side wall of the sewage collection tank.

2. The sewage collection box assembly according to claim 1, characterized in that, The sewage storage container is provided with a filter screen arranged on the air outlet side portion. The sewage storage container is communicated with the cavity and the exhaust port through the air outlet side portion.

3. The sewage collection box assembly according to claim 2, wherein, A liquid storage space is formed between the bottom of the sewage storage container and the bottom of the sewage collection tank. The liquid storage space forms a part of the cavity. The air outlet channel is communicated with the liquid storage space.

4. The sewage collection box assembly according to claim 3, characterized in that, The sewage storage container is provided with two relatively arranged air outlet side portions. The two air outlet side portions are respectively adjacent to the opposite side walls of the sewage collection tank to correspondingly form two air outlet channels. The sewage inlet is located between the two air outlet side portions.

5. The sewage collection box assembly according to claim 3, characterized in that, The sewage storage container is further provided with a guide bottom plate arranged horizontally. The guide bottom plate is opposite to and spaced from the bottom of the sewage collection tank. A liquid storage space is formed between the guide bottom plate and the bottom of the sewage collection tank. The air outlet side portion is connected to the edge of the guide bottom plate. The guide bottom plate is used to guide sewage and air flow to the air outlet side portion.

6. The sewage collection box assembly according to claim 3, characterized in that, The sewage storage container is further provided with two relatively arranged guide side plates. The two guide side plates are respectively adjacent to the opposite side walls of the sewage collection tank. The air outlet side portion is connected to one side of the two guide side plates. The two guide side plates are used to guide sewage and air flow to the air outlet side portion.

7. The sewage collection box assembly according to claim 1, characterized in that, The sewage collection box has a first side wall and a second side wall connected to the first side wall. The first side wall and the second side wall are arranged at an angle. The air outlet side part is opposite to and spaced from the first side wall, and the air inlet side part is opposite to and spaced from the second side wall.

8. The sewage collection box assembly according to claim 1, wherein, The air duct structure is provided with a cyclone cavity between its two ends. The separation device further includes a cyclone structure. The cyclone structure is installed in the cyclone cavity. The cyclone structure can guide the air flow entering from the air inlet side part to flow in a rotational centrifugal motion and then flow to the fan assembly.

9. The sewage collection box assembly according to claim 1, characterized in that, The sewage collection box includes a box body and a box cover. The box cover is covered with the box body. The box cover and the box body enclose to form the cavity. The sewage storage container is connected to the box cover. The sewage storage container and the box cover enclose to form a sewage storage cavity. The sewage storage cavity is communicated with the cavity through the air outlet side part. The air duct structure is installed in the sewage storage cavity.

10. The sewage collection box assembly according to claim 9, characterized in that, The box cover is provided with an exhaust port for docking the fan assembly. One end of the air duct structure is communicated with the exhaust port. The end of the air duct structure far from the exhaust port is provided with the air inlet side part. The positions of the air inlet side part and the exhaust port form a height difference in the height direction of the sewage collection box.

11. A maintenance base station for maintaining a cleaning device, characterized in that, The maintenance base station includes a base station body, a sewage inlet pipe, a fan assembly, and the sewage collection box assembly according to any one of claims 1 to 10. The sewage collection box is detachably installed on the base station body. The sewage inlet pipe is installed on the base station body and communicated with the sewage inlet. The fan assembly is installed on the base station body and communicated with the exhaust port.

12. A cleaning system, characterized in that, The cleaning system includes a cleaning device and the maintenance base station according to claim 11.

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