Wastewater tank of cleaning apparatus and cleaning apparatus

Abstract

A cleaning apparatus (200), comprising a wastewater tank (100) of the cleaning apparatus (200). The wastewater tank (100) comprises a tank body (15), a first liquid level detection member (21), a second liquid level detection member (22) and a third liquid level detection member (31). The tank body (15) comprises a solid-liquid separation cavity (11) and a wastewater accommodating cavity (12) which are vertically separated from each other. The first liquid level detection member (21) is arranged at the bottom of the wastewater accommodating cavity (12). The second liquid level detection member (22) is arranged at the top end of the wastewater accommodating cavity (12). The third liquid level detection member (31) is arranged at the top end of the solid-liquid separation cavity (11). The first liquid level detection member (21) and the second liquid level detection member (22) are electrically connected to detect liquid level information in the wastewater accommodating cavity (12), and the first liquid level detection member (21) and the third liquid level detection member (31) are electrically connected to detect liquid level information in the solid-liquid separation cavity (11).

Description

Wastewater tank of cleaning equipment and cleaning equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on December 12, 2023, with application number 202311707848.3 and entitled “Sewage tank for cleaning equipment and cleaning equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of cleaning equipment, and in particular to a sewage tank of a cleaning equipment and a cleaning equipment. Background Art

[0004] In the prior art, most existing sewage tanks use two conductors to detect the liquid level. When the sewage in the tank reaches a critical height, the conductors connect and send a signal to a controller to stop the flow of sewage into the tank. Existing floor scrubbers cannot tilt at excessive angles. Otherwise, the fullness detection mechanism may fail to detect the sewage, allowing it to continue flowing into the tank and into the suction assembly, affecting the proper function of the cleaning machine.

[0005] Public content

[0006] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present application is to provide a sewage tank of a cleaning device that can detect the full water level when the body is in a flat working position, thereby avoiding the problem of sewage being sucked into undesirable structures inside the cleaning device when the cleaning device is in a flat working state, causing failure.

[0007] The application also proposes a cleaning device.

[0008] According to the first aspect of the present application, the sewage tank of the cleaning equipment includes: a tank body, the tank body including a solid-liquid separation chamber and a dirty liquid holding chamber separated by upper and lower parts; a first liquid level detection member, arranged at the bottom of the dirty liquid holding chamber; a second liquid level detection member, arranged at the top of the dirty liquid holding chamber; and a third liquid level detection member, arranged at the top of the solid-liquid separation chamber; wherein the first liquid level detection member and the second liquid level detection member are connected to detect liquid level information in the dirty liquid holding chamber, and the first liquid level detection member and the third liquid level detection member are connected to detect liquid level information in the solid-liquid separation chamber.

[0009] Therefore, by setting up the sewage tank, the water full level information in the sewage holding chamber and the solid-liquid separation chamber can be detected, so that the suction work of the cleaning equipment can be stopped in time according to the detected water full level information, thereby avoiding the problem of failure of the cleaning equipment due to the sewage being sucked into the unexpected structure inside it during operation.

[0010] In some examples of the present application, a suction port is provided at the top of the box body, and the third liquid level detecting component is located at a position at the top of the box body away from the suction port.

[0011] According to the second aspect of the present application, a sewage tank of a cleaning device, the cleaning device comprises: a floor brush; and a body, the body being rotatably arranged on the floor brush, the sewage tank being arranged on the body, the body having a normal working position and a lying flat working position relative to the floor brush, the lying flat working position being lower than the normal working position; the sewage tank comprising: a sewage tank body, the sewage tank body having a solid-liquid separation chamber and a sewage holding chamber, the solid-liquid separation chamber and the sewage holding chamber being communicated with each other; a first water full detection component, the first water full detection component being at least used to detect whether the sewage holding chamber has reached a first water full position when the body is in the normal working position; and a second water full detection component, the second water full detection component being at least partially located in the solid-liquid separation chamber and being at least used to detect whether the solid-liquid separation chamber has reached a second water full position when the body is in the lying flat working position; wherein, when the water level reaches the first water full position, the first water full detection component is triggered to emit a first signal, and / or when the water level reaches the second water full position, the second water full detection component is triggered to emit a second signal.

[0012] Therefore, by setting up the sewage tank, the water full level information when the body is in the lying working position can be detected, thereby avoiding the problem of failure caused by the dirty liquid being sucked into the unexpected structure inside the cleaning equipment when it is in the lying working state.

[0013] In some examples of the present application, the first water-full detection component includes a first liquid level detection component and a second liquid level detection component, both of which are arranged in the dirty liquid holding chamber, and the first liquid level detection component and the second liquid level detection component are selectively electrically connected to detect whether the dirty liquid holding chamber reaches a first water-full position; and the second water-full detection component includes a third liquid level detection component and a fourth liquid level detection component, the third liquid level detection component is arranged in the solid-liquid separation chamber, and the fourth liquid level detection component is arranged in the solid-liquid separation chamber or the dirty liquid holding chamber, and the third liquid level detection component and the fourth liquid level detection component are selectively electrically connected to detect whether the solid-liquid separation chamber reaches a second water-full position.

[0014] In some examples of the present application, the fourth liquid level detecting member is disposed in the dirty liquid containing chamber, and the fourth liquid level detecting member and the first liquid level detecting member are the same liquid level detecting member.

[0015] In some examples of the present application, the first liquid level detection component is arranged at the bottom of the dirty liquid holding chamber; the second liquid level detection component is arranged on the side wall or top of the dirty liquid holding chamber; and the third liquid level detection component is arranged on the side wall or top of the solid-liquid separation chamber.

[0016] In some examples of the present application, a suction port is provided on the top of the solid-liquid separation chamber, and the suction port is spaced apart from the third liquid level detection component; when the body is in the lying flat working position, the height of the third liquid level detection component from the clean working surface is lower than the height of the suction port from the clean working surface.

[0017] In some examples of the present application, the sewage tank body includes: a sewage suction pipe, which has a sewage outlet formed in the solid-liquid separation chamber; and a baffle, which is arranged between the sewage outlet and the suction port, and the third liquid level detection component is located on the side of the baffle away from the suction port.

[0018] In some examples of the present application, the first liquid level detecting member and the second liquid level detecting member are located on a side of the sewage tank adjacent to the body, and the third liquid level detecting member is located on a side of the sewage tank away from the body.

[0019] In some examples of the present application, the sewage tank body includes: a tank body; a partition, which is arranged in the tank body and divides the internal space of the tank body into the sewage holding chamber and the solid-liquid separation chamber; and a tank cover, which is arranged on the top of the tank body; wherein the first liquid level detection component is arranged at the bottom of the tank body, the second liquid level detection component is arranged on the partition, and the third liquid level detection component is arranged on the top of the tank body or the tank cover.

[0020] In some examples of the present application, a through hole connecting the dirty liquid holding chamber and the solid-liquid separation chamber is provided on the partition, and the second liquid level detecting member is arranged away from the through hole.

[0021] In some examples of the present application, a first conductive contact, a second conductive contact, and a third conductive contact are provided on a side wall of the sewage tank body facing the fuselage, the first conductive contact is connected to the first liquid level detection component, the second conductive contact is connected to the second liquid level detection component, and the third conductive contact is connected to the third liquid level detection component.

[0022] In some examples of the present application, a first conductive contact, a second conductive contact, and a third conductive contact are provided on a side wall of the sewage tank body facing the fuselage, and the fuselage is provided with conductive electrodes corresponding to the first conductive contact, the second conductive contact, and the third conductive contact.

[0023] The cleaning device according to the third aspect of the present application includes: a floor brush; a body; a suction component for providing negative pressure to the cleaning device; and the sewage tank of the above-mentioned cleaning device.

[0024] In some examples of the present application, the cleaning device further includes: a controller, which is electrically connected to the first water full detection component, the second water full detection component and the suction component, respectively, and the controller is configured to: after receiving the water full signal from the first water full detection component and / or the second water full detection component, control the suction component to not work.

[0025] In some examples of the present application, the controller is further configured to: after powering on, detect the working position of the fuselage, and detection information of the first water full detection component and / or the second water full detection component.

[0026] In some examples of the present application, the cleaning device further includes: a detector, which is arranged at the rotating shaft between the body and the floor brush, the detector is electrically connected to the controller, and the detector is used to detect whether the body reaches the lying working position.

[0027] According to the fourth aspect of the present application, the cleaning device includes: a floor brush; a sewage tank, the sewage tank including a solid-liquid separation chamber and a sewage holding chamber; a suction component, the suction component is used to provide negative pressure; a sewage suction channel, the sewage suction channel connecting the floor brush, the solid-liquid separation chamber and the suction component; a suction channel, the suction channel connecting the sewage holding chamber and the suction component, the suction component drives an airflow to suck the sewage holding chamber to drive the sewage in the solid-liquid separation chamber to flow into the sewage holding chamber; and a fuselage, the fuselage being rotatably arranged on the floor brush, the sewage tank It is arranged on the body, and the body has a normal working position and a lying working position relative to the floor brush, and the lying working position is lower than the normal working position; the sewage tank includes a first water-full detection component and a second water-full detection component, and the first water-full detection component is at least used to detect whether the sewage holding chamber reaches the first water-full position when the body is in the normal working position; the second water-full detection component is at least partially located in the solid-liquid separation chamber and is at least used to detect whether the solid-liquid separation chamber reaches the second water-full position when the body is in the lying working position.

[0028] In some examples of the present application, the sewage tank includes: a tank body; a partition, which is arranged in the tank body and divides the internal space of the tank body into the sewage holding chamber and the solid-liquid separation chamber; and a tank cover, which is arranged on the top of the tank body; the first water full detection assembly includes two liquid level detection parts, one of which is arranged near the bottom of the sewage holding chamber and close to the fuselage, and the other is arranged near the partition and below the partition.

[0029] In some examples of the present application, the second water full detection assembly includes two liquid level detection components, one of which is arranged at the top of the solid-liquid separation chamber close to the box cover or at the position of the box cover, and the other is arranged at the bottom of the solid-liquid separation chamber close to the partition or at the top of the dirty liquid holding chamber close to the partition.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] FIG1 is a schematic structural diagram of a cleaning device in a normal working position according to an embodiment of the present application;

[0033] FIG2 is a schematic structural diagram of a cleaning device in a lying-flat working position according to an embodiment of the present application;

[0034] FIG3 is a schematic structural diagram of a sewage tank according to an embodiment of the present application;

[0035] FIG4 is another structural schematic diagram of a sewage tank according to an embodiment of the present application;

[0036] FIG5 is a cross-sectional view of a sewage tank according to an embodiment of the present application;

[0037] FIG6 is a schematic diagram of a partial structure of a sewage tank according to an embodiment of the present application;

[0038] FIG7 is another partial structural diagram of a sewage tank according to an embodiment of the present application;

[0039] FIG8 is another partial structural diagram of a sewage tank according to an embodiment of the present application;

[0040] FIG9 is a schematic structural diagram of a sewage suction channel and a pumping channel of a sewage tank according to an embodiment of the present application;

[0041] FIG10 is a cross-sectional view of a sewage tank according to an embodiment of the present application.

[0042] Reference numerals:

[0043] 100. Sewage tank; 200. Cleaning equipment;

[0044] 10. Sewage tank body; 11. Solid-liquid separation chamber; 111. Suction port; 12. Sewage holding chamber; 13. Sewage suction pipe; 131. Sewage outlet; 14. Baffle; 15. Tank body; 16. Partition; 161. Through hole; 17. Tank cover; 181. First conductive contact; 182. Second conductive contact; 183. Third conductive contact; 20. First water fullness detection assembly; 21. First liquid level detection member; 22. Second liquid level detection member; 30. Second water fullness detection assembly; 31. Third liquid level detection member; 32. Fourth liquid level detection member;

[0045] 40. Sewage suction channel; 51. First suction channel; 52. Second suction channel; 60. Separation body;

[0046] 70. Suction assembly; 80. Suction motor; 201. Floor brush; 202. Machine body. DETAILED DESCRIPTION

[0047] The following describes in detail embodiments of the present application, and the embodiments described with reference to the accompanying drawings are exemplary.

[0048] The following describes the sewage tank 100 of the cleaning device 200 according to an embodiment of the present application with reference to Figures 1 to 10. The sewage tank 100 can detect the water full liquid level information when the body 202 is in the normal working position and the lying working position, so that the operation of the suction component 70 can be controlled when the water level in the two working states reaches a preset height, thereby avoiding the problem that the sewage in the sewage tank 100 is sucked into the suction component 70 and causes machine malfunction.

[0049] As shown in Figures 1-10 , the sewage tank 100 of the cleaning device 200 according to the first embodiment of the present application includes a housing 15, a first liquid level detection member 21, a second liquid level detection member 22, and a third liquid level detection member 31. The housing 15 primarily forms the internal and external contours of the sewage tank 100, providing protection and securing the tank. The first, second, and third liquid level detection members 21, 22, and 31 are primarily used to detect whether the liquid within the sewage tank 100 has reached its installed position.

[0050] Specifically, the housing 15 includes a solid-liquid separation chamber 11 and a dirty liquid holding chamber 12 separated by upper and lower parts. The first liquid level detecting member 21 is disposed at the bottom of the dirty liquid holding chamber 12, the second liquid level detecting member 22 is disposed at the top of the dirty liquid holding chamber 12, and the third liquid level detecting member 31 is disposed at the top of the solid-liquid separation chamber 11. The first liquid level detecting member 21 and the second liquid level detecting member 22 are electrically connected to detect liquid level information in the dirty liquid holding chamber 12, and the first liquid level detecting member 21 and the third liquid level detecting member 31 are electrically connected to detect liquid level information in the solid-liquid separation chamber 11.

[0051] Specifically, the first and second liquid level detection members 21 and 22 are disposed at the bottom and top of the waste liquid holding chamber 12, respectively. When waste water in the waste liquid holding chamber 12 gradually accumulates to the position of the second liquid level detection member 22, the first and second liquid level detection members 21 and 22 become electrically connected (the waste water can act as a conductor), thereby triggering a full water level signal in the waste liquid holding chamber 12. The third liquid level detection member 31 is disposed at the top of the solid-liquid separation chamber 11. The solid-liquid separation chamber 11 and the waste liquid holding chamber 12 are interconnected, and the solid-liquid separation chamber 11 is located above the waste liquid holding chamber 12. When waste water gradually accumulates to the position of the third liquid level detection member 31, the first and third liquid level detection members 21 and 31 become electrically connected (the waste water can act as a conductor), thereby triggering a full water level signal in the solid-liquid separation chamber 11. In summary, when the cleaning device 200 performs cleaning work (the suction work is carried out at the same time), when the water full level signal in the dirty liquid holding chamber 12 or the water full level signal in the solid-liquid separation chamber 11 is triggered, the cleaning device 200 stops the suction work in time, thereby timely avoiding the problem of failure caused by the dirty liquid being sucked into the unexpected structure inside the cleaning device 200 (such as the suction component 70) during operation, thereby improving the service life and safety of the cleaning device 200.

[0052] Therefore, by setting up the sewage tank 100, the water full level information in the sewage holding chamber 12 and the solid-liquid separation chamber 11 can be detected, so that the suction work of the cleaning equipment 200 can be stopped in time according to the detected water full level information, thereby avoiding the problem of failure of the cleaning equipment 200 due to the sewage being sucked into the unexpected structure inside it during operation.

[0053] According to some optional embodiments of the present application, a suction port 111 is provided at the top of the housing 15, and the third liquid level detecting member 31 is located at a position at the top of the housing 15 away from the suction port 111. Specifically, the top of the housing 15 is provided with a suction port 111 for sucking air from the solid-liquid separation chamber 11, and the third liquid level detecting member 31 at the top of the housing 15 is away from the suction port 111. In this way, after sewage accumulates to the position of the third liquid level detecting member 31 and triggers a full liquid level signal of the solid-liquid separation chamber 11, the sewage still maintains a certain distance from the suction port 111, thereby better avoiding the problem of sewage being sucked into an undesirable structure inside the cleaning device 200 through the suction port 111 and causing failure.

[0054] 1 to 3, 5, 9 and 10, according to the sewage tank 100 of the cleaning device 200 of the second embodiment of the present application, the cleaning device 200 includes a floor brush 201 and a body 202, the body 202 is rotatably arranged on the floor brush 201, the sewage tank 100 is a barrel-shaped structure, arranged on the body 202, and the body 202 has a normal working position and a lying flat working position relative to the floor brush 201. The inclination degree of the body 202 in the lying flat working position is lower than the inclination degree of the body 202 in the normal working position (compared with the cleaning working surface, the inclination angle of the body 202 in the lying flat working position is smaller than the inclination angle of the body 202 in the normal working position). The cleaning device 200 needs to ensure that solid waste and sewage can be sucked into the sewage tank 100 in both the normal working position and the lying flat working position, and stop the suction component 70 when the sewage reaches a certain height to prevent sewage from entering the interior of the suction component 70.

[0055] It is understood that the floor brush 201 can clean the dirt by moving on the cleaning surface and picking up the dirt attached during the movement. The sewage tank 100 can store the dirty liquid used by the floor brush 201 after cleaning the dirt. The body 202 is rotatably mounted on the floor brush 201. During the cleaning process, the user pushes the floor brush 201 to move across the surface to be cleaned using the handle on the body 202. When cleaning the floor, the body 202 is tilted at a certain angle relative to the floor brush 201. When cleaning low areas such as under beds and coffee tables, the body 202 cleans the floor in a nearly flat position. Since the sewage tank 100 is a barrel-shaped structure as a whole, that is, a sewage barrel, the air outlet is located at the top of the sewage barrel. During normal cleaning, the liquid entering the sewage barrel through the sewage suction pipe 13 falls to the bottom of the sewage barrel under the action of gravity, and the gas is discharged from the top of the sewage barrel to achieve gas-liquid separation. When the sewage reaches a preset height, the suction component 70 stops working; when lying down for cleaning, due to the large degree of inclination of the sewage barrel, the sewage is closer to the air outlet, and the sewage storage capacity of the sewage barrel becomes smaller. At this time, a detection device different from that during conventional cleaning is required to detect the water level in the sewage barrel to prevent sewage from entering the suction component 70 through the air outlet.

[0056] Figure 1 is a schematic diagram of a user cleaning the floor normally. At this time, the user's body is generally in an upright or slightly bent state. Figure 2 shows the position of the body 202 when lying down in the working position. At this time, the body 202 is tilted at a small angle relative to the horizontal plane, close to the lying down state, for example, 0°, 3° and 5°, etc. The user can clean low areas (such as under the bed, under the cabinet and under the coffee table, etc.). The body 202 can lower the overall height of the cleaning device 200 by lying down in the working position, so that the floor brush 201 and at least part of the body 202 can be extended into the space of the low area, thereby adapting to the working environment when cleaning the low area, thereby improving the adaptability of the cleaning device 200 facing different working environments.

[0057] Specifically, the sewage tank 100 includes a sewage tank body 10, a first water-full detection assembly 20, and a second water-full detection assembly 30. The sewage tank body 10 has a solid-liquid separation chamber 11 and a sewage holding chamber 12, which are interconnected. The first water-full detection assembly 20 is at least used to detect whether the sewage holding chamber 12 has reached a first water-full position when the tank body 202 is in a normal working position. The second water-full detection assembly 30 is at least partially located in the solid-liquid separation chamber 11 and is at least used to detect whether the solid-liquid separation chamber 11 has reached a second water-full position when the tank body 202 is in a flat working position. When the water level reaches the first water-full position, the first water-full detection assembly 20 is triggered to emit a first signal; when the water level reaches the second water-full position, the second water-full detection assembly 30 is triggered to emit a second signal. After the second signal is issued, the suction of the suction component 70 can be stopped, the power of the suction component 70 can be gradually reduced, or the power of the suction component 70 can be directly reduced to a certain value to minimize the suction force of the suction component 70 and prevent the liquid from being sucked into the suction component 70.

[0058] Among them, the sewage tank body 10 can protect and support its internal structure and constitute the external structure of the sewage tank 100. A partition 16 is provided in the sewage tank 100 to separate the sewage tank 100 into a solid-liquid separation chamber 11 and a sewage holding chamber 12. The partition 16 has a notch. The suction assembly 70 is connected to the solid-liquid separation chamber 11 through the first suction channel 51, and the suction assembly 70 is connected to the sewage holding chamber 12 through the second suction channel 52. After the dirt on the cleaning working surface attached to the floor brush 201 is sucked into the solid-liquid separation chamber 11 through the dirt suction channel 40, the dirty liquid in the dirt in the solid-liquid separation chamber 11 flows from the solid-liquid separation chamber 11 to the dirty liquid holding chamber 12 under the action of gravity and negative pressure (the negative pressure caused by the suction component 70 sucking the air in the dirty liquid holding chamber 12 through the second suction channel 52). In this way, the dirt can be collected in the solid-liquid separation chamber 11 in advance, and then the dirt in the solid-liquid separation chamber 11 can be separated into solid and liquid in a step-by-step processing effect, thereby reducing the risk of dirty liquid entering the unexpected structure inside the cleaning equipment 200 and causing it to fail.

[0059] In addition, the first water-full detection component 20 is disposed in the waste liquid holding chamber 12. When the water level in the waste liquid holding chamber 12 reaches the first water-full position, it sends a first signal (i.e., a water-full signal in the waste liquid holding chamber 12) to the cleaning device 200. At this time, the cleaning device 200 stops the suction operation. This can prevent excessive wastewater in the waste liquid holding chamber 12 from being sucked into the suction component 70 through the second suction channel 52.

[0060] The second water full detection component 30 is at least partially arranged in the solid-liquid separation chamber 11. When the fuselage 202 is in a lying working position, due to the large inclination of the sewage bucket (at this time, the inclination angle with the cleaning working surface is too small, which easily causes the sewage to flow horizontally to the solid-liquid separation chamber 11), there will also be sewage in the solid-liquid separation chamber 11. When there is less sewage in the solid-liquid separation chamber 11, it can still work without causing sewage to enter the suction component 70. When the sewage in the solid-liquid separation chamber 11 becomes more, the sewage has a tendency to enter the suction component 70 through the first suction channel 51 or the second suction channel 52 (there is also a tendency to enter the suction component 70 through the first suction channel 51 and the second suction channel 52). The full detection component 30 can detect whether the dirty liquid in the solid-liquid separation chamber 11 in this state has reached the second water full position. When it reaches the second water full position, it sends a second signal to the cleaning device 200. At this time, the cleaning device 200 stops the suction work, thereby avoiding the risk of failure caused by the dirty liquid entering the suction component 70 through the first suction channel 51 in the solid-liquid separation chamber 11; therefore, through the cooperation of the first water full detection component 20 and the second water full detection component 30, it can be ensured that the dirty liquid in the dirty liquid holding chamber 12 and / or the solid-liquid separation chamber 11 will not be sucked into an unexpected structure, thereby improving the safety of electronic devices of the cleaning device 200 under different working conditions and the practicality of comprehensive use.

[0061] Therefore, by setting up the sewage tank 100, the water full level information when the body 202 is in the normal working position and the lying working position can be detected, thereby avoiding the problem of the cleaning device 200 failing due to the sewage being sucked into its internal unwanted structure during operation.

[0062] According to some optional embodiments of the present application, in combination with Figures 6 and 8, the first water full detection assembly 20 includes a first liquid level detection member 21 and a second liquid level detection member 22. The first liquid level detection member 21 and the second liquid level detection member 22 are both arranged in the dirty liquid holding chamber 12. The first liquid level detection member 21 and the second liquid level detection member 22 are selectively electrically connected to detect whether the dirty liquid holding chamber 12 reaches the first water full position.

[0063] The second water full detection component 30 includes a third liquid level detection component 31 and a fourth liquid level detection component 32. The third liquid level detection component 31 is arranged in the solid-liquid separation chamber 11, and the fourth liquid level detection component 32 is arranged in the solid-liquid separation chamber 11 or the dirty liquid holding chamber 12. The third liquid level detection component 31 and the fourth liquid level detection component 32 are selectively electrically connected to detect whether the solid-liquid separation chamber 11 reaches the second water full position.

[0064] Among them, the first liquid level detection component 21 and the second liquid level detection component 22 are located at different heights in the dirty liquid holding chamber 12. Specifically, the first liquid level detection component 21 is located at the bottom of the dirty liquid holding chamber 12, and the second liquid level detection component 22 is located near the top of the dirty liquid holding chamber 12. When the body 202 is in the normal working position, the dirty liquid entering the solid-liquid separation chamber 11 through the sewage suction pipe 13 flows into the dirty liquid holding chamber 12 through the gap of the partition 16. As the sewage in the dirty liquid holding chamber 12 gradually increases, until the sewage submerges both the first liquid level detection member 21 and the second liquid level detection member 22, the dirty liquid acts as a conductor to electrically connect the first liquid level detection member 21 and the second liquid level detection member 22. The electrical circuit between the first liquid level detection member 21 and the second liquid level detection member 22 is connected. At this time, it can be known that the dirty liquid in the dirty liquid holding chamber 12 has reached the first water full position, thereby sending a first signal (i.e., the water full signal in the dirty liquid holding chamber 12) to the cleaning device 200. At this time, the cleaning device 200 stops the suction work, thereby avoiding the risk of failure caused by the dirty liquid being sucked into the second suction channel 52 provided in the dirty liquid holding chamber 12, causing the dirty liquid to enter the unwanted structure inside the cleaning device 200.

[0065] In addition, the third liquid level detecting member 31 and the fourth liquid level detecting member 32 are arranged at different positions of the sewage tank body 10. The third liquid level detecting member 31 is arranged in the solid-liquid separation chamber 11. When the body 202 is in the flat working position, since sewage is likely to exist in the solid-liquid separation chamber 11, sewage will inevitably also exist in the sewage holding chamber 12. Therefore, the fourth liquid level detecting member 32 can be arranged in either the solid-liquid separation chamber 11 or the sewage holding chamber 12. For example, when the body 202 is in the lying working position, the sewage tank body 10 tilts, and the sewage gradually increases mainly along the radial direction of the sewage tank body 10. The sewage in the solid-liquid separation chamber 11 gradually increases until the third liquid level detection component 31 and the fourth liquid level detection component 32 are both submerged. At this time, the sewage acts as a conductor to electrically connect the third liquid level detection component 31 and the fourth liquid level detection component 32, and the electrical circuit between the third liquid level detection component 31 and the fourth liquid level detection component 32 is connected. At this time, it can be known that the sewage in the sewage holding chamber 12 has reached the second water full position, thereby sending a second signal to the cleaning device 200. At this time, the cleaning device 200 stops the suction work, thereby avoiding the sewage being sucked into the first suction channel 51 provided in the solid-liquid separation chamber 11, causing the sewage to enter the unexpected structure inside the cleaning device 200 and cause the risk of failure.

[0066] Optionally, the fourth liquid level detecting member 32 is provided in the dirty liquid containing chamber 12 , and the fourth liquid level detecting member 32 and the first liquid level detecting member 21 are the same liquid level detecting member.

[0067] In other words, the sewage tank 10 can have four liquid level detection components: the first liquid level detection component 21, the second liquid level detection component 22, the third liquid level detection component 31, and the fourth liquid level detection component 32. Alternatively, the sewage tank 10 can have three liquid level detection components: the first liquid level detection component 21, the second liquid level detection component 22, and the third liquid level detection component 31. This can reduce the number of detection components and corresponding structures while meeting the requirements of the first and second water-full detection functions, resulting in a simpler structure.

[0068] Furthermore, in combination with Figures 5, 6 and 8, the sewage tank 100 is located on the rear side of the body 202, the first liquid level detecting member 21 is arranged at the bottom of the sewage holding chamber 12; the second liquid level detecting member 22 is arranged on the side wall or top of the sewage holding chamber 12; and the third liquid level detecting member 31 is arranged on the side wall or top of the solid-liquid separation chamber 11.

[0069] Among them, the first liquid level detection member 21 is set at the bottom of the dirty liquid holding chamber 12 near the body 202, and the second liquid level detection member 22 is set at the bottom of the separation body 60 and near the body 202. At the same time, the second liquid level detection member 22 is also close to the second suction channel 52. In this way, the water fullness information in the dirty liquid holding chamber 12 can be accurately detected and the sewage will not enter the suction assembly 70 through the second suction channel 52. It is also possible to ensure that when there is a lot of stored sewage, it does not affect the normal use of the cleaning device 200; the third liquid level detection member 31 It is arranged at the top of the solid-liquid separation chamber 11 and close to the central axis of the sewage tank 100. In this way, when the sewage tank 100 is tilted and the liquid level in the solid-liquid separation chamber 11 reaches a certain height (at this time, it reaches the second water full position), the first liquid level detection component 21 and the third liquid level detection component 31 are connected, thereby transmitting the conduction signal to the controller to control the suction component 70 to stop the suction work, ensuring that the dirty liquid in the solid-liquid separation chamber 11 will not enter the undesirable structure inside the cleaning equipment 200 through the first suction channel 51 provided in the solid-liquid separation chamber 11.

[0070] Specifically, in combination with Figures 5 to 8, a suction port 111 is provided at the top of the solid-liquid separation chamber 11, and the suction port 111 is spaced apart from the third liquid level detection component 31; when the body 202 is in a lying working position, the height of the third liquid level detection component 31 from the cleaning working surface is lower than the height of the suction port 111 from the cleaning working surface. When the dirty liquid in the solid-liquid separation chamber 11 gradually increases until it submerges the third liquid level detection component 31, the second water full detection component 30 sends a stop suction signal to the cleaning equipment 200 to prevent dirt from continuing to enter the solid-liquid separation chamber 11 through the sewage suction pipe 13, thereby avoiding the risk of dirty liquid entering the suction port 111.

[0071] Furthermore, in combination with Figures 5 to 8, the sewage tank body 10 includes a sewage suction pipe 13 and a baffle 14. The sewage suction pipe 13 is formed with a sewage outlet 131 in the solid-liquid separation chamber 11. The baffle 14 is arranged between the sewage outlet 131 and the suction port 111. The third liquid level detection component 31 is located on the side of the baffle 14 away from the suction port 111.

[0072] Among them, the suction port 111 and the sewage outlet 131 are connected to each other. When the cleaning device 200 starts cleaning, the interior of the solid-liquid separation chamber 11 is drawn into a strong negative pressure environment under the action of suction. Under the state of strong negative pressure in the solid-liquid separation chamber 11, the sewage suction pipe 13 draws the dirt on the floor brush 201 into the solid-liquid separation chamber 11 through the sewage outlet 131 of the sewage suction pipe 13, so that the dirt collection work of the cleaning device 200 can be completed in advance, and the suction port 111 and the sewage outlet 131 of the sewage suction pipe 13 are separated by the baffle 14, so that the sewage or dirt discharged from the sewage outlet 131 of the sewage suction pipe 13 into the solid-liquid separation chamber 11 can be effectively kept away from the suction port 111, which is conducive to achieving the effect of water and gas separation in the solid-liquid separation chamber 11, thereby reducing the risk of sewage being sucked into the suction port 111, reducing the equipment failure rate, and improving the sewage suction capacity of the cleaning device 200.

[0073] In addition, a baffle 14 is provided between the sewage outlet 131 of the sewage suction pipe 13 and the suction port 111. The baffle 14 can effectively prevent the dirt discharged from the sewage outlet 131 of the sewage suction pipe 13 from flowing back to the suction port 111, and then allow the dirt to flow into the sewage holding chamber 12 under the action of gravity and negative pressure (the negative pressure caused by the suction component 70 sucking the air in the sewage holding chamber 12 through the second suction channel 52), thereby further reducing the risk of the dirt flowing out of the sewage outlet 131 of the sewage suction pipe 13 being sucked into the suction port 111 along with the airflow, thereby reducing the failure rate of the cleaning equipment 200.

[0074] In addition, the third liquid level detection component 31 is located on the side of the baffle 14 away from the suction port 111, so that when the sewage tank 100 is almost flat, the suction port 111 is on the radial upper side of the sewage tank 100, the sewage inlet is in the radial middle position of the sewage tank 100, and the third liquid level detection component 31 is in the radial middle lower position of the sewage tank 100, thereby ensuring that the sewage entering through the sewage inlet is at least stored in the sewage holding chamber 12 and part of the solid-liquid separation chamber 11. As the liquid in the solid-liquid separation chamber 11 increases, the first liquid level detection component 21 and the third liquid level detection component 31 are connected to avoid continuing to suck sewage from the sewage inlet, thereby causing the sewage to enter the suction component 70 through the first suction channel 51.

[0075] Specifically, as shown in Figures 2, 6 and 8, the first liquid level detecting member 21, the second liquid level detecting member 22 and the suction port 111 are located inside the sewage tank 100 at a position adjacent to the body 202, and the third liquid level detecting member 31 is located inside the sewage tank 100 at a position away from the body 202.

[0076] When the body 202 is in the normal operating position, the first liquid level detecting member 21 and the second liquid level detecting member 22 are positioned adjacent to the body 202. This ensures that as much sewage as possible is stored without entering the second suction channel 52 along with the airflow. If the second liquid level detecting member 22 is positioned away from the body 202, the sewage storage capacity is much smaller than if the second liquid level detecting member 22 is positioned closer to the body 202, because the second liquid level detecting member 22 is positioned further down the horizontal plane.

[0077] When the body 202 is in the lying working position, the sewage tank body 10 is tilted, and the third liquid level detection component 31 is arranged away from the body 202 relative to the suction port 111. In this way, the suction motor 80 will stop working when the sewage in the solid-liquid separation chamber 11 reaches a preset distance from the suction port 111, ensuring that the sewage in the solid-liquid separation chamber 11 will not enter the undesirable structure inside the cleaning equipment 200 through the first suction channel 51 provided in the solid-liquid separation chamber 11, thereby reducing the risk of sewage entering the suction port 111.

[0078] Further, in combination with Figures 3, 5, 6 and 8, the sewage tank body 10 includes a box body 15, a partition 16 and a box cover 17. The partition 16 is arranged in the box body 15, and the partition 16 divides the internal space of the box body 15 into a sewage holding chamber 12 and a solid-liquid separation chamber 11. The box cover 17 is arranged on the top of the box body 15; wherein, the first liquid level detection member 21 is arranged at the bottom of the box body 15, the second liquid level detection member 22 is arranged on the partition 16, and the third liquid level detection member 31 is arranged on the top of the box body 15 or the box cover 17.

[0079] Among them, a partition 16 is provided in the upper and lower directions of the box body 15 to separate the solid-liquid separation chamber 11 and the dirty liquid holding chamber 12, and the solid-liquid separation chamber 11 is located above the dirty liquid holding chamber 12. In this way, the upper solid-liquid separation chamber 11 can collect the dirt on the clean surface in advance under the negative pressure of the suction force, and then the lower dirty liquid holding chamber 12 can also form a suction effect on the sewage in the solid-liquid separation chamber 11 under the negative pressure of the suction force, thereby achieving a step-by-step treatment effect of first sucking out the sewage and then separating the solid and liquid, thereby improving its scientificity and rationality.

[0080] Furthermore, the tank cover 17 and the tank body 15 interlock vertically, making it easy for users to disassemble, assemble, and repair the internal structure of the sewage tank body 10. The partition 16 is connected to the tank cover 17, so that when the tank cover 17 is removed, the partition 16 can also be removed, thereby facilitating waste removal. The partition 16 and the tank cover 17 can be two separate structural components, connected to the tank cover 17 by a corresponding connection method. Of course, the partition 16 can also form an integral structure with a portion of the tank cover 17, which improves the overall structure.

[0081] In addition, the first liquid level detection component 21 is disposed at the bottom of the housing 15, and the second liquid level detection component 22 is disposed on the partition 16. When the main body 202 is in the normal working position, this prevents the dirty liquid in the dirty liquid holding chamber 12 from entering undesired structures within the cleaning device 200 through the second suction channel 52 disposed therein. Furthermore, the capacity of the dirty liquid that can be stored in the dirty liquid holding chamber 12 before the first water full detection assembly 20 issues a suction stop signal can be further increased.

[0082] The third liquid level detection component 31 is disposed on the top of the tank body 15 or the tank cover 17. When the body 202 is in the flat working position, the sewage tank body 10 is tilted. This ensures that the sewage in the solid-liquid separation chamber 11 does not enter into undesirable structures inside the cleaning device 200 through the suction port 111 disposed at the top of the solid-liquid separation chamber 11. This also further increases the sewage volume that can be stored in the solid-liquid separation chamber 11 before the second water full detection component 30 issues a stop suction signal.

[0083] Specifically, as shown in Figures 5, 6, and 8, the partition plate 16 is provided with a through hole 161 that connects the waste liquid holding chamber 12 and the solid-liquid separation chamber 11, and the second liquid level detection member 22 is disposed away from the through hole 161. The solid-liquid separation chamber 11 and the waste liquid holding chamber 12 are connected to each other via the through hole 161 on the partition plate 16, so that the waste water drawn into the solid-liquid separation chamber 11 can be filtered and then directed into the waste liquid holding chamber 12.

[0084] In addition, when the body 202 is in a normal working state (at this time, the body 202 is tilted toward the side of the through hole 161, and the dirty liquid will first accumulate on the side of the through hole 161), the second liquid level detecting member 22 is arranged away from the through hole 161. This can prevent the dirty liquid from prematurely submerging the second liquid level detecting member 22, causing the second liquid level detecting member 22 to prematurely become electrically connected to the first liquid level detecting member 21 to send a signal to stop suction, thereby wasting the storage space in the dirty liquid holding chamber 12.

[0085] Furthermore, in combination with Figures 4, 6 and 8, a first conductive contact 181, a second conductive contact 182 and a third conductive contact 183 are provided on the side wall of the sewage tank body 10 facing the fuselage 202. The first conductive contact 181 is connected to the first liquid level detection member 21, the second conductive contact 182 is connected to the second liquid level detection member 22, and the third conductive contact 183 is connected to the third liquid level detection member 31.

[0086] A first conductive contact 181, a second conductive contact 182, and a third conductive contact 183 are provided on the sidewall of the sewage tank body 10 facing the housing 202. The housing 202 is provided with conductive pads corresponding to the first conductive contact 181, the second conductive contact 182, and the third conductive contact 183. The housing 202 of the cleaning device 200 is provided with conductive pads at positions corresponding to the conductive contacts within the cavity accommodating the sewage tank body 10. The conductive contacts interface with the conductive pads to connect to the conductive circuitry within the housing 202.

[0087] The first conductive contact 181, the second conductive contact 182, and the third conductive contact 183 on the side wall of the sewage tank body 10 facing the fuselage 202 are electrically connected to the first liquid level detection component 21, the second liquid level detection component 22, and the third liquid level detection component 31, respectively. This can transmit liquid full information to the first liquid level detection component 21, the second liquid level detection component 22, and the third liquid level detection component 31 and provide a transmission channel for electrical signals, thereby improving the scientificity and systematicity of the liquid full signal detection of the first water full detection component 20 and the second water full detection component 30.

[0088] As shown in Figures 1, 2, 9, and 10, a cleaning device 200 according to an embodiment of the third aspect of the present application includes a floor brush 201, a body 202, a suction assembly 70 for providing negative pressure to the cleaning device 200, and the sewage tank 100 of the cleaning device 200 of the above-mentioned embodiment. In this way, the cleaning device 200 with the sewage tank 100 can detect the full water level information when the body 202 is in the flat working position and issue a signal command to stop suction, thereby avoiding the problem that the cleaning device 200 is easily sucked into its internal undesirable structure when it is in the flat working state, causing failure. The type of the cleaning device 200 can be determined according to actual needs and is not limited in this embodiment of the present application. Here, the other parts of the cleaning device 200, except for the sewage tank 100, can adopt the corresponding structure and shape of various types of vacuum cleaners such as handheld vacuum cleaners, horizontal vacuum cleaners, upright vacuum cleaners, bucket vacuum cleaners, etc., or can adopt the corresponding structure and shape of other cleaning devices 200 with dust collection functions, which are not limited in this embodiment of the present application.

[0089] According to some optional embodiments of the present application, the cleaning device 200 includes a suction component 70 and a controller. The suction component 70 is connected to the solid-liquid separation chamber 11. The controller is electrically connected to the first water full detection component 20, the second water full detection component 30 and the suction component 70, respectively. The controller is configured to: after receiving the water full signal from the first water full detection component 20 and the second water full detection component 30, control the suction component 70 not to work; the controller is also configured to: after receiving the water full signal from the first water full detection component 20 or the second water full detection component 30, control the suction component 70 not to work.

[0090] In detail, the suction component 70 is connected to the solid-liquid separation chamber 11. Under the suction action of the suction component 70, the air in the solid-liquid separation chamber 11 is sucked to form a negative pressure. In this way, the dirt on the floor brush 201 can be sucked into the solid-liquid separation chamber 11 under the action of the negative pressure, thereby achieving the effect of collecting dirt. Among them, the controller is connected to the first water full detection component 20, the second water full detection component 30 and the suction component 70 in the form of electrical signals. When the controller receives the water full signal from the first water full detection component 20 and the second water full detection component 30, it controls the suction component 70 to stop working, so that the cleaning device 200 can complete the action of stopping suction after receiving the water full signal, so that the first water full detection component 20, the second water full detection component 30, the controller and the suction component 70 form a functionally coherent overall system, thereby improving the scientificity and systematicity of the cleaning device 200 when performing cleaning work.

[0091] Furthermore, the controller is also configured to: after powering on, detect the working position of the body 202 and the detection information of the first water full detection component 20 and the second water full detection component 30. Among them, when the cleaning device 200 is turned on, the working position of the body 202 is detected in advance to determine whether the body 202 is in the lying working position or the normal working position. When it is detected that the body 202 is in the normal working position, the first signal of the first water full detection component 20 (the water full signal in the dirty liquid holding chamber 12) is triggered; when it is detected that the body 202 is in the lying working position, the second signal of the second water full detection component 30 (the water full signal in the solid-liquid separation chamber 11) is triggered. In this way, the risk of sewage being sucked into the suction component 70 and causing failure can be further prevented (for example, before the cleaning device 200 is turned on, there is a certain amount of sewage stored in the sewage tank 100. When the user puts the cleaning device 200 in the lying working position, the sewage is easy to flow to the suction port 111. If the device is turned on directly for suction at this time, there is a risk that sewage will flow into the suction component 70 from the suction port 111).

[0092] Specifically, the controller is further configured to: after receiving the information that the body 202 is in the flat working position, confirm the detection information of the second water full detection component 30. When the controller receives the information that the body 202 is in the flat working position, it first confirms the detection information of the second water full detection component 30. This ensures that when the cleaning device 200 is in the flat working position, it can also ensure that no sewage enters the undesirable structure inside the cleaning device 200.

[0093] Furthermore, the cleaning device 200 also includes a detector, which is disposed at the rotating shaft between the body 202 and the floor brush 201. The detector is electrically connected to the controller and is used to detect whether the body 202 has reached the flat working position. This allows the working position of the body 202 to be confirmed, thereby confirming the detection information to select and identify the detection information of the first water full detection component 20 or the second water full detection component 30 for subsequent execution of commands.

[0094] Specifically, the cleaning device 200 further includes a display screen, which is disposed on the body 202 and is electrically connected to a controller. The controller is further configured to control the floor brush 201 and the display screen to operate after receiving a stop suction signal from the first water full detection component 20 and the second water full detection component 30 for a predetermined time. When the controller controls the floor brush 201 and the display screen to operate after receiving a stop suction signal from the first water full detection component 20 and the second water full detection component 30 for a predetermined time, the controller can force the floor brush 201 to stop cleaning and provide the user with an intuitive water full prompt, thereby improving the safety of the cleaning device 200.

[0095] The working states of the first water full detection component 20 and the second water full detection component 30 are described below:

[0096] When the cleaning device 200 is in a lying working position, the power button is pressed, and the first water full detection component 20 and the second water full detection component 30 work simultaneously. When it is detected that one of the channels sends a water full signal, the suction component 70 will not be turned on at this time. Only when both channels do not send a stop water full signal, the suction component 70 will be started normally; when the cleaning device 200 is in a regular working position or in a self-cleaning state, the first water full detection component 20 starts working. When the first water full detection component 20 does not send a water full signal, the suction component 70 starts working normally.

[0097] As shown in Figures 1 to 3, 5, 9 and 10, the cleaning device 200 according to the fourth embodiment of the present application includes a floor brush 201, a sewage tank 100, a suction assembly 70, a sewage suction channel 40, a suction channel and a body 202. The floor brush 201 is mainly used to adhere to the dirt on the cleaning work surface and clean it. The sewage tank 100 can be used to store the sewage generated after cleaning the dirt on the floor brush 201. The suction assembly 70 is mainly used to suck the air in the sewage tank 100, so that the suction assembly 70 can suck the dirt and dirty liquid attached to the floor brush 201 into the sewage tank 100 through the sewage suction channel 40 and the suction channel. The body 202 mainly serves as a structural member of the outer contour of the cleaning device 200.

[0098] Specifically, the sewage tank 100 includes a solid-liquid separation chamber 11 and a sewage holding chamber 12. The suction assembly 70 is used to provide negative pressure. The sewage suction channel 40 connects the floor brush 201, the solid-liquid separation chamber 11 and the suction assembly 70. The suction channel connects the sewage holding chamber 12 and the suction assembly 70. The suction assembly 70 drives the airflow to suck the sewage holding chamber 12 to drive the sewage in the solid-liquid separation chamber 11 into the sewage holding chamber 12. The body 202 is rotatably arranged on the floor brush 201.

[0099] Among them, after the dirt is sucked from the clean working surface to the solid-liquid separation chamber 11 through the dirt suction channel 40, the suction component 70 sucks the gas in the dirty liquid holding chamber 12 through the suction channel, so that a negative pressure is formed in the dirty liquid holding chamber 12. The liquid in the dirt in the solid-liquid separation chamber 11 is subjected to the negative pressure transmitted from the connection between the solid-liquid separation chamber 11 and the dirty liquid holding chamber 12, and also flows from the solid-liquid separation chamber 11 to the dirty liquid holding chamber 12. In this way, a fast and effective solid-liquid separation effect can be achieved. The suction channel is connected to the solid-liquid separation chamber 11, which can enhance the suction force of the solid-liquid separation chamber 11 for the dirt on the clean working surface, thereby facilitating the pre-collection of dirt in the solid-liquid separation chamber 11.

[0100] In addition, the solid-liquid separation chamber 11 is connected to the waste liquid holding chamber 12. The suction assembly 70 is connected to the solid-liquid separation chamber 11 to provide power for dirt to enter the solid-liquid separation chamber 11. The suction pipe has a suction inlet and a suction outlet. The suction inlet is connected to the waste liquid holding chamber 12, and the suction outlet is connected to the suction assembly 70, so that the suction assembly 70 provides power for the waste liquid in the waste to enter the waste liquid holding chamber 12 from the solid-liquid separation chamber 11. The sewage outlet 131 and the suction outlet converge toward the suction assembly 70. This arrangement utilizes the suction force of a single suction assembly 70 to achieve conventional waste collection on the one hand, and on the other hand, provides suction force to the sewage tank 100 to prevent waste liquid from being sucked into the suction assembly 70 when the cleaning device 200 is lying at a certain angle for operation. There are at least four ways in which the sewage outlet 131 and the suction inlet 111 converge toward the suction assembly 70. The first is that the sewage suction channel 40 and the suction channel are separated in the horizontal plane, and the two channels are completely separated, and the end point of each flow is at the air inlet. The second is that the sewage suction channel 40 and the suction channel close to the suction assembly 70 are nested with each other, such as the suction channel is at least partially on the circumferential periphery of the sewage suction channel 40 but separated from each other, or the sewage suction channel 40 is on the circumferential periphery of the suction channel but separated from each other. The third is that the sewage suction channel 40 first converges to the suction channel, and then the converged airflow flows together to the air inlet. The fourth is that the suction channel first converges to the sewage suction channel 40, and then the converged airflow flows together to the air inlet.

[0101] The sewage tank 100 is arranged on the body 202, and the body 202 has a normal working position and a lying flat working position relative to the brush 201, and the lying flat working position is lower than the normal working position; the sewage tank 100 includes a first water full detection component 20 and a second water full detection component 30, and the first water full detection component 20 is at least used to detect whether the sewage holding chamber 12 reaches the first water full position when the body 202 is in the normal working position; the second water full detection component 30 is at least partially located in the solid-liquid separation chamber 11 and is at least used to detect whether the solid-liquid separation chamber 11 reaches the second water full position when the body 202 is in the lying flat working position.

[0102] Among them, the inclination degree of the fuselage 202 in the lying flat working position is lower than the inclination degree of the fuselage 202 in the regular working position (compared with the cleaning working surface, the inclination angle of the fuselage 202 in the lying flat working position is smaller than the inclination angle of the fuselage 202 in the regular working position). The cleaning equipment 200 needs to ensure that solid waste and sewage can be sucked into the sewage tank 100 in both the regular working position and the lying flat working position, and stop the operation of the suction component 70 when the sewage reaches a certain height to prevent sewage from entering the interior of the suction component 70.

[0103] Furthermore, the first water-full detection assembly 20 is disposed within the waste liquid holding chamber 12. When the water level within the waste liquid holding chamber 12 reaches a first water-full position, it sends a water-full signal (i.e., a water-full signal in the waste liquid holding chamber 12) to the cleaning device 200, at which point the cleaning device 200 ceases suction operations. This prevents excessive wastewater within the waste liquid holding chamber 12 from being drawn into the suction assembly 70 through the second suction channel 52. For example, when the body 202 is in the normal operating position, the wastewater tank 100 is tilted slightly, so wastewater within the waste liquid holding chamber 12 will not overflow into the solid-liquid separation chamber 11 before filling the waste liquid holding chamber 12. The first water-full detection assembly 20 can detect whether the wastewater within the solid-liquid separation chamber 11 has reached the first water-full position in this state. When the wastewater reaches the first water-full position, it sends a water-full signal to the cleaning device 200, at which point the cleaning device 200 ceases suction operations. This prevents the risk of failure caused by wastewater entering the suction assembly 70 through the first suction channel 51 in the solid-liquid separation chamber 11.

[0104] The second water-full detection assembly 30 is at least used to detect whether the waste liquid holding chamber 12 has reached the second water-full position when the body 202 is in the flat working position. For example, when the body 202 is in the flat working position, due to the large inclination of the waste liquid tank 100 (the inclination angle with the cleaning working surface is too small at this time, which easily causes waste water to flow laterally into the solid-liquid separation chamber 11), waste water may also be present in the solid-liquid separation chamber 11. When there is less waste water in the solid-liquid separation chamber 11, the system can still operate without causing waste water to enter the suction assembly 70. When there is more waste water in the solid-liquid separation chamber 11, the waste water tends to enter the suction assembly 70 through the first suction channel 51 or the second suction channel 52 (or enter the suction assembly 70 through both the first suction channel 51 and the second suction channel 52). The second water-full detection assembly 30 can detect whether the dirty liquid in the solid-liquid separation chamber 11 has reached the second water-full position in this state. When the second water-full position is reached, it sends a water-full signal to the cleaning device 200, and the cleaning device 200 stops the suction operation at this time, thereby avoiding the risk of failure caused by the dirty liquid entering the suction assembly 70 through the first suction channel 51 in the solid-liquid separation chamber 11. Therefore, through the coordinated operation of the first water-full detection assembly 20 and the second water-full detection assembly 30, it can be ensured that the dirty liquid in the dirty liquid holding chamber 12 and / or the solid-liquid separation chamber 11 will not be sucked into an undesirable structure, thereby improving the safety of the electronic components and the comprehensive practicality of the cleaning device 200 under different working conditions.

[0105] Therefore, by setting up the sewage tank 100, the water full level information when the body 202 is in the normal working position and the lying working position can be detected, thereby avoiding the problem of the cleaning device 200 failing due to the sewage being sucked into its internal unwanted structure during operation.

[0106] According to some optional embodiments of the present application, the sewage tank 100 includes a tank body 15, a partition 16 and a tank cover 17. The partition 16 is arranged in the tank body 15, and the partition 16 divides the internal space of the tank body 15 into a sewage holding chamber 12 and a solid-liquid separation chamber 11. The tank cover 17 is arranged on the top of the tank body 15; the first water fullness detection assembly 20 includes two liquid level detection components, one of which is arranged near the bottom of the sewage holding chamber 12 and close to the body 202, and the other is arranged near the partition 16 and below the partition 16.

[0107] In detail, a partition 16 is provided in the upper and lower directions inside the box body 15 to separate the solid-liquid separation chamber 11 and the dirty liquid holding chamber 12, and the solid-liquid separation chamber 11 is located above the dirty liquid holding chamber 12. In this way, the upper solid-liquid separation chamber 11 can first collect the dirt on the clean surface in its interior under the negative pressure of the suction component 70, and the lower dirty liquid holding chamber 12 can also form a suction effect on the sewage in the solid-liquid separation chamber 11 under the negative pressure of the suction component 70, thereby achieving a step-by-step treatment effect of first sucking out the sewage and then separating the solid and liquid, thereby improving the scientificity and rationality of its layout.

[0108] In addition, the box cover 17 and the box body 15 are interlocked, which makes it easy to disassemble and repair the internal structure, and the sewage suction channel 40 is concealed inside the box cover 17, which can enhance the protection of the sewage suction channel 40 and improve the space utilization inside the box cover 17.

[0109] Among them, one of the first water full detection components 20 is arranged at the bottom of the dirty liquid holding chamber 12 near the fuselage 202, and the other one of the first water full detection components 20 is arranged near the partition 16 and below the partition 16. In this way, the water full information in the dirty liquid holding chamber 12 can be accurately detected and the sewage can be prevented from entering the suction component 70 through the second suction channel 52, and as much sewage as possible can be stored without affecting the normal use of the cleaning equipment 200.

[0110] Specifically, the second water full detection assembly 30 includes two liquid level detection components, one of which is arranged at the top of the solid-liquid separation chamber 11 near the box cover 17 or at the position of the box cover 17, and the other is arranged at the bottom of the solid-liquid separation chamber 11 near the partition 16 or at the top of the dirty liquid holding chamber 12 near the partition 16.

[0111] Among them, one of the second water-full detection components 30 is arranged at the bottom of the dirty liquid holding chamber 12 near the partition 16, and the other one of the second water-full detection components 30 is arranged at the top of the solid-liquid separation chamber 11 near the box cover 17. In this way, when the sewage tank 100 is tilted and the liquid level in the solid-liquid separation chamber 11 reaches a certain height (at this time, it reaches the second water-full position), the second water-full detection component 30 sends a water-full conduction signal, thereby transmitting the conduction signal to the controller to control the suction component 70 to stop the suction work, ensuring that the dirty liquid in the solid-liquid separation chamber 11 will not pass through the suction channel provided in the solid-liquid separation chamber 11 and enter the unwanted structure inside the cleaning equipment 200.

[0112] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 should not be understood as a limitation on the present application.

[0113] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0114] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0115] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sewage tank (100) of a cleaning device (200), characterized in that: include: A box body (15), the box body (15) comprising a solid-liquid separation chamber (11) and a dirty liquid containing chamber (12) which are separated into upper and lower parts; A first liquid level detection member (21) is arranged at the bottom of the dirty liquid containing chamber (12); A second liquid level detection member (22) is disposed at the top end of the dirty liquid containing chamber (12); and The third liquid level detection member (31) is arranged at the top of the solid-liquid separation chamber (11); wherein: The first liquid level detection member (21) and the second liquid level detection member (22) are connected to detect the liquid level information in the dirty liquid containing chamber (12), and the first liquid level detection member (21) and the third liquid level detection member (31) are connected to detect the liquid level information in the solid-liquid separation chamber (11).

2. The sewage tank (100) of the cleaning device (200) according to claim 1, characterized in that: The top of the box body (15) is provided with a suction port (111), and the third liquid level detection component (31) is located at a position of the top of the box body (15) away from the suction port (111).

3. A sewage tank (100) of a cleaning device (200), characterized in that: The cleaning device (200) comprises: floor brush (201); and A machine body (202), the machine body (202) being rotatably arranged on the floor brush (201), the sewage tank (100) being arranged on the machine body (202), the machine body (202) having a normal working position and a lying flat working position relative to the floor brush (201), the lying flat working position being lower than the normal working position; The sewage tank (100) comprises: A sewage tank body (10), the sewage tank body (10) comprising a solid-liquid separation chamber (11) and a sewage liquid containing chamber (12), the solid-liquid separation chamber (11) and the sewage liquid containing chamber (12) being in communication with each other; a first water-full detection component (20), the first water-full detection component (20) being used at least to detect whether the dirty liquid containing chamber (12) has reached a first water-full position when the body (202) is in the normal working position; and a second water-full detection component (30), the second water-full detection component (30) being at least partially located in the solid-liquid separation chamber (11) and at least used to detect whether the solid-liquid separation chamber (11) has reached a second water-full position when the body (202) is in the lying-flat working position; When the water level reaches the first full water position, the first water full detection component (20) is triggered to send a first signal, and / or when the water level reaches the second full water position, the second water full detection component (30) is triggered to send a second signal.

4. The sewage tank (100) of the cleaning device (200) according to claim 3, characterized in that: The first water-full detection assembly (20) comprises a first liquid level detection member (21) and a second liquid level detection member (22), the first liquid level detection member (21) and the second liquid level detection member (22) are both arranged in the dirty liquid containing chamber (12), the first liquid level detection member (21) and the second liquid level detection member (22) are selectively electrically connected to detect whether the dirty liquid containing chamber (12) has reached a first water-full position; and The second water-full detection assembly (30) comprises a third liquid level detection component (31) and a fourth liquid level detection component (32); the third liquid level detection component (31) is arranged in the solid-liquid separation chamber (11); the fourth liquid level detection component (32) is arranged in the solid-liquid separation chamber (11) or the dirty liquid containing chamber (12); the third liquid level detection component (31) and the fourth liquid level detection component (32) are selectively electrically connected to detect whether the solid-liquid separation chamber (11) has reached a second water-full position.

5. The sewage tank (100) of the cleaning device (200) according to claim 4, characterized in that: The fourth liquid level detection component (32) is arranged in the dirty liquid containing chamber (12), and the fourth liquid level detection component (32) and the first liquid level detection component (21) are the same liquid level detection component.

6. The sewage tank (100) of the cleaning device (200) according to claim 4 or 5, characterized in that: The first liquid level detection element (21) is arranged at the bottom of the dirty liquid containing chamber (12); The second liquid level detection element (22) is arranged on the side wall or the top of the dirty liquid containing chamber (12); The third liquid level detection component (31) is arranged on the side wall or the top of the solid-liquid separation chamber (11).

7. The sewage tank (100) of the cleaning device (200) according to any one of claims 4 to 6, characterized in that: The top of the solid-liquid separation chamber (11) is provided with a suction port (111), and the suction port (111) is spaced apart from the third liquid level detection component (31); When the machine body (202) is in the lying working position, the height of the third liquid level detection component (31) from the cleaning working surface is lower than the height of the suction port (111) from the cleaning working surface.

8. The sewage tank (100) of the cleaning device (200) according to claim 7, characterized in that: The sewage tank body (10) comprises: a sewage suction pipe (13), wherein the sewage suction pipe (13) is provided with a sewage outlet (131) in the solid-liquid separation chamber (11); and A baffle (14), wherein the baffle (14) is arranged between the sewage outlet (131) and the suction port (111), and the third liquid level detection component (31) is located on a side of the baffle (14) away from the suction port (111).

9. The sewage tank (100) of the cleaning device (200) according to any one of claims 4 to 8, characterized in that: The first liquid level detection component (21) and the second liquid level detection component (22) are located on a side of the sewage tank (100) adjacent to the body (202), and the third liquid level detection component (31) is located on a side of the sewage tank (100) away from the body (202).

10. The sewage tank (100) of the cleaning device (200) according to any one of claims 4 to 9, characterized in that: The sewage tank body (10) comprises: Box body (15); a partition (16), the partition (16) being arranged in the box body (15) and dividing the internal space of the box body (15) into the dirty liquid containing chamber (12) and the solid-liquid separation chamber (11); and A box cover (17), wherein the box cover (17) is arranged on the top of the box body (15); The first liquid level detection component (21) is arranged at the bottom of the box body (15), the second liquid level detection component (22) is arranged on the partition (16), and the third liquid level detection component (31) is arranged on the top of the box body (15) or the box cover (17).

11. The sewage tank (100) of the cleaning device (200) according to claim 10, characterized in that: The partition plate (16) is provided with a through hole (161) communicating with the dirty liquid containing chamber (12) and the solid-liquid separation chamber (11), and the second liquid level detecting element (22) is arranged away from the through hole (161).

12. The sewage tank (100) of the cleaning device (200) according to any one of claims 4 to 11, characterized in that: A first conductive contact (181), a second conductive contact (182) and a third conductive contact (183) are provided on a side wall of the sewage tank body (10) facing the body (202); the first conductive contact (181) is connected to the first liquid level detection component (21); the second conductive contact (182) is connected to the second liquid level detection component (22); and the third conductive contact (183) is connected to the third liquid level detection component (31).

13. The sewage tank (100) of the cleaning device (200) according to any one of claims 3 to 11, characterized in that: A first conductive contact (181), a second conductive contact (182) and a third conductive contact (183) are arranged on a side wall of the sewage tank body (10) facing the body (202), and the body (202) is provided with conductive electrode sheets corresponding to the first conductive contact (181), the second conductive contact (182) and the third conductive contact (183).

14. A cleaning device (200), characterized in that: include: Floor brush (201); Body (202); A suction assembly (70) for providing negative pressure to the cleaning device (200); as well as A sewage tank (100) of a cleaning device (200) according to any one of claims 1 to 13.

15. The cleaning device (200) according to claim 14, characterized in that Also includes: A controller, wherein the controller is electrically connected to the first water full detection component (20), the second water full detection component (30) and the suction component (70), respectively, and the controller is configured to control the suction component (70) to stop working after receiving a water full signal from the first water full detection component (20) and / or the second water full detection component (30).

16. The cleaning device (200) according to claim 15, characterized in that The controller is also configured to: after powering on, detect the working position of the body (202) and detection information of the first water full detection component (20) and / or the second water full detection component (30).

17. The cleaning device (200) according to claim 15 or 16, characterized in that: Also includes: A detector, the detector being arranged at the rotating shaft between the machine body (202) and the floor brush (201), the detector being electrically connected to the controller, and the detector being used to detect whether the machine body (202) has reached the lying working position.

18. A cleaning device (200), characterized in that: include: Floor brush (201); A sewage tank (100), the sewage tank (100) comprising a solid-liquid separation chamber (11) and a sewage receiving chamber (12); A suction assembly (70), the suction assembly (70) being used to provide negative pressure; A sewage suction channel (40), wherein the sewage suction channel (40) is connected to the floor brush (201), the solid-liquid separation chamber (11) and the suction assembly (70); a suction channel, the suction channel communicating with the waste liquid containing chamber (12) and the suction assembly (70), the suction assembly (70) driving an airflow to suck the waste liquid containing chamber (12) so as to drive the waste water in the solid-liquid separation chamber (11) to flow into the waste liquid containing chamber (12); and A machine body (202), the machine body (202) being rotatably arranged on the floor brush (201), the sewage tank (100) being arranged on the machine body (202), the machine body (202) having a normal working position and a lying flat working position relative to the floor brush (201), the lying flat working position being lower than the normal working position; The sewage tank (100) comprises a first water full detection component (20) and a second water full detection component (30), wherein the first water full detection component (20) is at least used to detect whether the sewage liquid containing chamber (12) has reached a first water full position when the body (202) is in the normal working position; and the second water full detection component (30) is at least partially located in the solid-liquid separation chamber (11) and is at least used to detect whether the solid-liquid separation chamber (11) has reached a second water full position when the body (202) is in the lying working position.

19. The cleaning device (200) according to claim 18, characterized in that The sewage tank (100) comprises: Box body (15); a partition (16), the partition (16) being arranged in the box body (15) and dividing the internal space of the box body (15) into the dirty liquid containing chamber (12) and the solid-liquid separation chamber (11); and A box cover (17), wherein the box cover (17) is arranged on the top of the box body (15); The first water fullness detection assembly (20) comprises two liquid level detection components, one of which is arranged near the bottom of the dirty liquid containing chamber (12) and close to the body (202), and the other is arranged near the partition (16) and below the partition (16).

20. The cleaning device (200) according to claim 19, characterized in that The second water fullness detection assembly (30) comprises two liquid level detection components, one of which is arranged at the top end of the solid-liquid separation chamber (11) close to the box cover (17) or at the position of the box cover (17), and the other is arranged at the bottom end of the solid-liquid separation chamber (11) close to the partition (16) or at the top end of the dirty liquid containing chamber (12) close to the partition (16).

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