Wastewater separator, tank cover assembly, wastewater tank, cleaning device and cleaning system

Abstract

A wastewater separator mounted on a wastewater tank of a cleaning device, the wastewater separator comprising a partition (2), wherein the partition (2) is provided with a first water drain portion (202), the partition (2) divides the wastewater tank (b) into two chambers respectively located above and below the partition (2), the two chambers are in communication with each other via the first water drain portion (202), and the partition (2) is arranged at a mounting hole (201) through which a water suction pipe (e) passes. When the wastewater tank (b) is in use, wastewater in the wastewater tank (b) is collected into the chamber above the partition (2) through the suction pipe (e), and the water in the wastewater collected into the chamber above the partition (2) is drained into the chamber below through the first drain portion (2), so that solid waste in the wastewater is stored in the chamber above, thereby achieving solid and liquid separation of the wastewater by means of the partition (2).

Description

Wastewater separators, tank cover assemblies, wastewater tanks, cleaning equipment, and cleaning systems

[0001] Cross-references to related publications

[0002] The present disclosure is based on the Chinese patent publication with priority number 202420254967.1 and priority date on January 31, 2024, the Chinese patent publication with priority number 202420243073.2 and publication date on January 31, 2024, the Chinese patent publication with priority number 202420235863.6 and priority date on January 31, 2024, the Chinese patent publication with priority number 202323658838.3 and priority date on December 29, 2023, and the Chinese patent publication with priority number 202323667260.8 and publication date on December 29, 2023, and claims the priority of the above five Chinese patent publications, and the entire contents of the above five Chinese patent publications are hereby incorporated into the present disclosure by reference. Technical Field

[0003] The present disclosure belongs to the technical field of household appliances, and particularly relates to a sewage separator, a tank cover assembly, a sewage tank, and cleaning equipment. Background Art

[0004] In related technologies, sewage tanks are a crucial component of cleaning equipment (e.g., robot vacuums and floor scrubbers). Their primary function is to collect, separate, and store both wet and dry waste. Their operating principle is as follows: an air induced draft element draws air from the sewage tank, creating a negative pressure inside the tank, drawing the wastewater and solid waste into the tank.

[0005] In the process of implementing the present disclosure, the author discovered that the related art has at least the following deficiencies:

[0006] After the cleaning equipment is finished running, the inside of the sewage tank needs to be cleaned. There is solid waste in the sewage in the sewage tank, which is inconvenient to pour out the solid waste in the sewage tank together with the sewage, affecting the user experience. Summary of the Invention

[0007] The present disclosure provides a sewage separator, a tank cover assembly, a sewage tank and a cleaning device, which are intended to at least to some extent solve the technical problem that when cleaning the interior of the sewage tank, solid waste is present in the sewage in the sewage tank, making it inconvenient to pour out the solid waste in the sewage tank together with the sewage.

[0008] The present disclosure provides a sewage separator, which is detachably mounted on a sewage tank of a cleaning device, the sewage separator comprising: a partition provided with a first water leakage portion, the partition dividing the sewage tank into two cavities located above and below the partition, the two cavities being connected via the first water leakage portion; wherein, when the sewage tank is used, the sewage in the sewage tank is collected into the upper cavity, and the water in the sewage collected in the upper cavity is drained into the lower cavity via the first water leakage portion, so that solid waste in the sewage is stored in the upper cavity; when the sewage separator is removed from the sewage tank, the solid waste is stored on the partition and separated from the sewage tank, and the sewage is separated into solid and liquid through the partition.

[0009] The sewage separator provided by the present application has a partition that divides the sewage tank into two cavities located above and below the partition. After the sewage and solid waste in the sewage tank are sucked into the upper cavity, the sewage flows into the lower cavity through the first leaking part to achieve solid-liquid separation in the sewage tank. When cleaning the sewage tank, it is only necessary to pull the sewage separator away from the sewage tank. During the extraction process, the sewage in the sewage tank flows into the sewage tank through the first leaking part, and the solid waste in the sewage remains on the partition of the sewage separator, so that the sewage separator and the sewage tank can be dumped separately to quickly clean up the solid waste and sewage, thereby improving the user experience and having good practicality.

[0010] In some embodiments, at least a portion of the periphery of the partition elastically abuts against the inner wall of the sewage tank.

[0011] In some embodiments, the sewage separator further includes: a garbage baffle connected to the partition and disposed in the upper cavity, the garbage baffle being provided with a second water leakage portion, and the first water leakage portion being provided on one side of the garbage baffle.

[0012] In some embodiments, the trash barrier is attached to at least a portion of the perimeter of the divider.

[0013] In some embodiments, the trash barrier is attached to a rear side of the divider.

[0014] In some embodiments, at least a portion of the rear side of the garbage baffle is provided with an avoidance portion, which extends toward the front side of the partition, and a third water leakage portion is provided on the partition, and at least a portion of the third water leakage portion is provided within the projection of the avoidance portion.

[0015] In some embodiments, a water suction pipe is provided in the sewage tank, and the partition is provided with a mounting hole for the water suction pipe to pass through.

[0016] The present disclosure further provides a tank cover assembly for installation on a sewage tank of a cleaning device. The tank cover assembly comprises: a cover body; the above-mentioned sewage separator, wherein a partition of the sewage separator is connected to the bottom of the cover body.

[0017] The box cover assembly provided by the present disclosure can dump the sewage separator and the sewage tank respectively to quickly clean up solid waste and sewage, thereby improving user experience and having good practicality.

[0018] In some embodiments, the sewage tank has a water suction pipe, and the tank cover assembly further includes: a flow deflector, and when the tank cover assembly is assembled in the sewage tank, the gap of the flow deflector is set above the water suction pipe.

[0019] In some embodiments, the side wall of the cover body is provided with an air inlet; two water retaining members are also connected to the cover body, and the two water retaining members are provided on both sides of the air inlet; when the box cover assembly is assembled in the sewage tank, the two water retaining members abut against the inner wall of the sewage tank.

[0020] In some embodiments, the air inlet is arranged on the front side of the cover body, and the two water retaining members are arranged on both sides of the cover body in the width direction.

[0021] In some embodiments, at least parts of the two water retaining members elastically abut against the inner wall of the sewage tank.

[0022] In some embodiments, an air outlet cavity is provided on the cover body, the air inlet is provided on the side wall of the air outlet cavity, and a water retaining portion is provided at the bottom of the air outlet cavity to prevent sewage in the sewage tank from entering the air outlet cavity.

[0023] In some embodiments, at least a portion of the bottom of the air outlet cavity is provided with a slope, a side of the slope facing the air inlet is lower than a side of the slope away from the air inlet, and the slope is configured as a water retaining portion.

[0024] In some embodiments, the tank cover assembly further includes: two first electrodes, respectively connected to the cover body, and both of the first electrodes have a first triggering part, which is used to generate a trigger signal when the two first triggering parts are conducted by the water in the sewage tank, so that the cleaning device adjusts the operating parameters of the air induced component according to the corresponding trigger signal.

[0025] In some embodiments, the sewage tank is tilted toward the back of the sewage tank, and the two first triggering parts are conducted by the water in the sewage tank.

[0026] In some embodiments, two first electrodes are connected in parallel on the cover, and at least a portion of the first electrode is disposed below the cover to be configured as the first triggering portion.

[0027] In some embodiments, the lid assembly further comprises:

[0028] In some embodiments, the isolation member is disposed between two of the first triggering parts; or / and, the isolation member is disposed on the outer side of at least one of the first triggering parts, and the isolation member is provided with a water inlet hole.

[0029] In some embodiments, the tank cover assembly further includes: a second electrode and a third electrode, connected to the cover body, the second electrode having a second triggering part, the second triggering part being arranged below the partition; the third electrode having a fourth triggering part, the fourth triggering part being arranged below the partition; wherein; under the condition that the sewage tank is at a first target water level, the water in the sewage tank conducts the second triggering part and the fourth triggering part to output a first water full information, and the first target water level is the water level in the sewage tank when the sewage tank is in an upright posture, an inclined posture or a twisted posture.

[0030] In some embodiments, the fourth triggering portion is disposed below the second triggering portion; or, the heights of the fourth triggering portion and the second triggering portion are consistent or nearly consistent.

[0031] In some embodiments, the second electrode is further provided with a third triggering portion, and the third triggering portion is provided between the cover and the separator; wherein:

[0032] Under the condition that the sewage tank is at a second target water level, the water in the sewage tank conducts the third trigger unit and the first trigger unit to output second water full information, and the second target water level is the water level in the sewage tank when the sewage tank is in a posture with an inclination angle less than or equal to a preset inclination angle.

[0033] In some embodiments, two second electrodes are arranged opposite to each other, and the two second electrodes are arranged on both sides of the third electrode in the width direction.

[0034] In some embodiments, the second electrode comprises:

[0035] a first connecting sleeve, the top end of which is connected to the cover body, and the bottom end of which is spaced apart from the partition;

[0036] a second connecting sleeve, the top end of which is connected to the cover body and the bottom end of which passes through the partition;

[0037] a first pole, disposed in the first connecting sleeve, with a bottom end extending out of the bottom of the first connecting sleeve, wherein the portion of the first pole extending out of the bottom of the first connecting sleeve is configured as the third triggering portion;

[0038] The second pole is disposed in the second connecting sleeve, with its bottom end extending out of the bottom of the second connecting sleeve. The portion of the second pole extending out of the bottom of the second connecting sleeve is configured as the second triggering portion.

[0039] In some embodiments, a waterproof member is provided on the top of the partition, and at least a portion of the second connecting sleeve passes through the waterproof member.

[0040] The present disclosure further provides a sewage tank, comprising: a tank body, wherein the tank body is provided with an inlet and an outlet; and the above-mentioned tank cover assembly, wherein the cover body of the tank cover assembly is detachably disposed in the inlet and outlet.

[0041] The sewage tank provided by the present disclosure can quickly clean solid waste and sewage separately to improve user experience and has good practicality.

[0042] In some embodiments, at least a portion of the outer circumference of the box body is provided with anti-slip grooves, and when the sewage tank is assembled with the host, the anti-slip grooves are provided on the outside of the host.

[0043] In some embodiments, the anti-slip grooves are provided at two locations, and the two anti-slip grooves are provided on both sides of the width direction of the box.

[0044] In some embodiments, the anti-slip pattern includes a plurality of patterns arranged along the height direction of the box, and the plurality of patterns are arranged in parallel.

[0045] In some embodiments, the box lid assembly includes a lid body and a handle, wherein the handle is rotatably connected to the top of the lid body.

[0046] In some embodiments, a mounting frame is provided on the top of the cover body, and the mounting frame has two mounting side walls provided along the width direction of the box body, and both ends of the handle are rotatably connected to the two mounting side walls.

[0047] In some embodiments, the mounting frame further includes a limiting side wall, which is connected to the side of the two mounting side walls facing away from the interior of the host, and the limiting side wall has a limiting portion corresponding to the handle, and the handle can be leaned against the limiting portion.

[0048] In some embodiments, the angle between the limiting portion and a horizontal plane extending from the cover toward the interior of the host is less than or equal to 90°.

[0049] In some embodiments, a guide surface is provided on the top of the cover body, and the guide surface extends downward from the limiting portion toward the interior of the host, and the angle between the guide surface and the limiting portion is an obtuse angle, and the handle can be rotated to the guide surface of the cover body.

[0050] The present disclosure also provides a sewage tank, comprising: a tank body, provided with an inlet and outlet; a tank cover assembly, detachably arranged at the inlet and outlet of the tank body, the tank cover assembly comprising a cover body and a handle, the handle being rotatably connected to the top of the cover body; the handle having a first position and a second position, when the handle is in the first position, the handle is stored in the cover body; when the handle is in the second position, the tank cover assembly can be separated from the tank body by pulling the handle.

[0051] The sewage tank provided by the present disclosure has a rotatable handle on the tank cover, which facilitates the removal of the tank cover; the handle can also be rotated for storage when not in use.

[0052] In some embodiments, a mounting frame is provided on the top of the cover body, and the mounting frame has two mounting side walls provided along the width direction of the box body, and both ends of the handle are rotatably connected to the two mounting side walls.

[0053] In some embodiments, the mounting frame further includes a limiting side wall, which is connected to the side of the two mounting side walls facing away from the interior of the host, and the limiting side wall has a limiting portion corresponding to the handle, and the handle can be leaned against the limiting portion.

[0054] In some embodiments, the angle between the limiting portion and a horizontal plane extending from the cover toward the interior of the host is less than or equal to 90°.

[0055] In some embodiments, a guide surface is provided on the top of the top cover, and the guide surface extends downward from the limiting portion toward the interior of the host, and the angle between the guide surface and the limiting portion is an obtuse angle, and the handle can be rotated to the guide surface of the cover body.

[0056] The present disclosure also provides a cleaning device, which includes the above-mentioned sewage tank.

[0057] The present disclosure also provides a cleaning system, comprising the above-mentioned cleaning device and a base station used in conjunction with the cleaning device.

[0058] The cleaning system and cleaning equipment provided by this public facility can quickly clean up solid waste and sewage separately to improve user experience and are very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are merely some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0060] FIG1 shows a schematic structural diagram of a sewage tank in one or more embodiments of the present application;

[0061] FIG2 is a schematic structural diagram showing the box cover assembly in FIG1 from a first perspective;

[0062] FIG3 shows a schematic structural diagram of the separator in FIG2 ;

[0063] FIG4 shows a schematic top view of FIG3 ;

[0064] FIG5 shows a schematic structural diagram of FIG3 from another perspective;

[0065] FIG6 is a schematic structural diagram showing a water retaining portion including multiple inclined surfaces in one or more embodiments of the present application;

[0066] FIG7 is a schematic structural diagram showing a water retaining portion including multiple steps in one or more embodiments of the present application;

[0067] FIG8 shows a schematic structural diagram of a second viewing angle of FIG2 ;

[0068] FIG9 shows a schematic structural diagram of a third viewing angle of FIG2

[0069] FIG10 shows a logic control schematic diagram of a cleaning device having the sewage tank shown in FIG1 ;

[0070] FIG11 shows a schematic diagram of water level detection of the sewage tank shown in FIG1 in the target posture

[0071] FIG12 shows a schematic structural diagram of the first electrode in FIG9 ;

[0072] FIG13 is a schematic diagram showing water level detection of the sewage tank shown in FIG1 in a vertical position;

[0073] FIG14 shows a schematic diagram of water level detection of the sewage tank shown in FIG1 in an inclined position

[0074] FIG15 shows a schematic structural diagram of the second electrode in FIG8 and FIG9;

[0075] FIG16 shows a schematic structural diagram of a cleaning device in one or more embodiments of the present application;

[0076] FIG17 is a schematic diagram showing the cleaning device in FIG16 in an unlocked state;

[0077] FIG18 shows a schematic structural diagram of the sewage tank in FIG16 ;

[0078] FIG19 shows a schematic structural diagram of FIG18 from another perspective;

[0079] Figure 20 shows a schematic diagram of the state where the box cover assembly is assembled into the box body;

[0080] FIG21 shows a schematic structural diagram of the case cover assembly with the handle in a vertical state;

[0081] FIG22 shows a schematic structural diagram of FIG18 with the filter element removed;

[0082] FIG23 shows a schematic structural diagram of the box cover assembly with the handle on the guide surface. DETAILED DESCRIPTION

[0083] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0084] In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0085] References to "one embodiment" or "an embodiment" herein refer to specific features, structures, or characteristics that may be included in at least one implementation of the present disclosure. Throughout the description of the present disclosure, it should be understood that the terms "upper," "lower," "left," "right," "top," "bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplification. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and are therefore not to be construed as limiting the present disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly specifying the number of the technical features referred to. Thus, a feature designated "first" or "second" may explicitly or implicitly include one or more of the features. Furthermore, the terms "first," "second," and the like are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein.

[0086] In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0087] With the development of economy and the progress of society, people have higher and higher requirements for the quality of life. Therefore, some smart appliances that can free people's hands have emerged, and cleaning equipment for home use has gradually entered people's lives. Now the cleaning equipment is a floor scrubber as an example to further describe the technical solution of the present disclosure.

[0088] A floor scrubber is a type of cleaning equipment that simultaneously cleans the floor and drains wastewater, removing it from the site. It offers advantages such as environmental friendliness, energy efficiency, and high efficiency. The wastewater tank is a crucial component of a floor scrubber, used for gas-liquid separation and collecting the separated wastewater within its chamber. The amount of wastewater stored in the tank needs to be monitored to determine whether it needs to be cleaned.

[0089] In the related art, after the cleaning equipment has finished running, it is necessary to clean the inside of the sewage tank. There is solid waste in the sewage in the sewage tank, which makes it inconvenient to pour out the solid waste in the sewage tank together with the sewage, affecting the user experience.

[0090] In a first aspect of the present disclosure, the present disclosure provides a sewage separator which is detachably mounted on a sewage tank of a cleaning device.

[0091] FIG1 is a schematic structural diagram of a sewage tank in one or more embodiments of the present disclosure, and FIG2 is a schematic structural diagram of the tank cover assembly in FIG1 from a first perspective. In conjunction with FIG1 and FIG2 , the tank cover assembly a includes a cover body 1 and a divider 2. FIG3 is a schematic structural diagram of the sewage separator in FIG2 . In conjunction with FIG1-FIG3 , the sewage separator includes a divider 2, which is provided with a first leaking portion 202. The divider 2 divides the sewage tank b into a first cavity located above the divider 2 and a second cavity located below the divider. The first cavity and the second cavity are connected through the first leaking portion 202.

[0092] The sewage separator provided by the present disclosure divides the sewage tank b into a first cavity located above the partition 2 and a second cavity located below the partition 2. After the sewage sucked into the sewage tank b together with the solid waste is sucked into the first cavity, the sewage flows into the second cavity through the first leaking part 202 to achieve solid-liquid separation in the sewage tank. When cleaning the sewage tank, it is only necessary to pull the sewage separator away from the sewage tank b, that is, when the sewage separator is removed from the sewage tank b, during the pulling process, the sewage in the sewage tank b flows into the sewage tank through the first leaking part 202, and the solid waste in the sewage remains on the partition 2 of the sewage separator, fixing the waste and separating it from the sewage tank b, so that the sewage separator and the sewage tank b can be dumped separately to quickly clean up the solid waste and sewage, thereby improving user experience and having good practicality.

[0093] 3 , the partition 2 may be plate-shaped, and the partition 2 is provided at a mounting hole 201 through which the suction pipe e of the sewage tank b passes. When the sewage tank b is used, the sewage in the sewage tank b is collected into the first cavity through the suction pipe e, and the water in the sewage collected into the first cavity is drained into the second cavity through the first leaking portion 202, so that the solid waste in the sewage is stored in the first cavity, and the sewage is separated into solid and liquid through the partition 2.

[0094] Figure 4 shows a top view of Figure 3. In conjunction with Figures 3 and 4, in some embodiments, the first water leakage portion 202 on the separator 2 may include multiple first water leakage holes, which may be arranged in an arc shape around the periphery of the mounting hole 201. In other embodiments, the multiple first water leakage holes on the separator 2 may also be arranged in a grid pattern, which is not a limitation here.

[0095] In some embodiments, the sewage tank b has a mounting sidewall, and the suction pipe e is connected to the mounting sidewall of the sewage tank b. The mounting hole 201 is open toward one side of the mounting sidewall to allow the suction pipe e to pass through. In specific implementations, the suction pipe e can be integrated into the mounting sidewall of the sewage tank b, and a water outlet is provided at the top of the suction pipe e. When the sewage tank b is in use, the sewage in the sewage tank b is collected into the first cavity through the top of the suction pipe e. The water in the sewage collected in the first cavity is drained into the second cavity through the first leaking portion 202, so that the solid waste in the sewage is stored in the first cavity, and the sewage is separated into solids and liquids by the partition 2. In other embodiments, a water outlet can also be provided on the circumferential surface of the suction pipe e above the partition 2, so that the sewage in the sewage tank b can be collected into the first cavity. This is not a limitation here.

[0096] In conjunction with Figures 2-4, at least a portion of the periphery of the divider 2 elastically abuts against the inner wall of the sewage tank b to improve the sealing effect between the divider 2 and the inner wall of the sewage tank b. In some embodiments, a first sealing member 203 can be provided around the periphery of the divider 2, excluding the opening, so that the suction pipe e and the opening can be fitted with a slight gap. Of course, the first sealing member 203 can also be provided between the pipe wall of the suction pipe e and the opening, which will not be described in detail here. In other embodiments, the periphery of the divider 2 can be elastic, for example, using a sheet of elastic material injection molded around the periphery of the divider 2. This allows the periphery of the divider 2 to be appropriately compressed when the sewage divider is assembled in the sewage tank b, thereby improving the sealing effect between the divider 2 and the inner wall of the sewage tank b.

[0097] Figure 5 shows a schematic structural diagram of Figure 3 from another perspective. In conjunction with Figures 2-5 , the sewage divider may further include a garbage baffle 3 connected to the divider 2. The garbage baffle 3 is disposed within the first cavity, i.e., connected to the top of the divider 2. The garbage baffle 3 is provided with a second water leakage portion 301, and the first water leakage portion 202 is provided on one side of the garbage baffle 3. When the sewage divider is removed from the sewage tank b, the garbage baffle 3 can concentrate the garbage in the sewage tank b in the area enclosed by the divider 2 and the garbage baffle 3, preventing the garbage from falling directly onto the ground, thus preventing secondary contamination and facilitating garbage removal.

[0098] In conjunction with Figures 2-5 , in some embodiments, the garbage baffle 3 may be attached only to at least a portion of the perimeter of the divider 2. For example, the garbage baffle 3 is preferably attached to the rear side of the divider 2. In actual implementation, when the user removes the sewage divider from the sewage tank b, the sewage tank b will be facing the user, that is, the sewage tank b is tilted toward the rear. With the garbage baffle 3 attached to the rear side of the divider 2, if sewage is present in the first chamber during removal of the sewage divider, the sewage will flow through the second leak portion 301 of the garbage baffle 3 to the area behind the garbage baffle 3, and the garbage will be stored in the area in front of the divider 2 and the garbage baffle 3, making it easier for the user to clean the garbage.

[0099] 3 and 5 , in some embodiments, the second water leakage portion 301 may include a second water leakage hole arranged in a grid shape on the garbage baffle 3 to prevent sewage from remaining at the junction of the garbage baffle 3 and the partition 2, so as to avoid the sewage separator from leaking out of the sewage tank b and causing secondary pollution after disassembly.

[0100] In conjunction with Figures 2-5 , in some embodiments, a first water leakage portion 202 can be provided on the front side of the trash baffle 3 to securely separate the first and second cavities of the divider 2. A relief portion 302 is provided on at least a portion of the rear side of the trash baffle 3, extending toward the front side of the divider 2 to form a diversion channel. A third water leakage portion 204 is provided on the divider 2, at least partially within the projection of the relief portion 302. The third water leakage portion 204 can be a third water leakage hole, located directly below the relief portion 302. When the cleaning device is in use, sewage is present between the trash baffle 3 and the sewage tank b. The relief portion 302 and the third water leakage portion 204 are provided to divert sewage into the sewage tank b. When the sewage divider is removed, sewage located on the rear side of the trash baffle 3 can flow through the relief portion 302 and the third water leakage portion 204 into the sewage tank b. In other embodiments, there may be a gap between the garbage baffle 3 and the rear side wall of the box body b1 of the sewage tank b, and the front and rear sides of the garbage baffle 3 are both provided with a first water leakage portion 202. When the sewage separator is removed, the sewage flow located on the rear side of the garbage baffle 3 can flow into the sewage tank b through the above-mentioned gap and the third water leakage portion 204.

[0101] In other embodiments, the garbage baffle 3 can also be installed around the top of the partition 2. When the sewage divider is removed, the garbage is retained on the partition 2 between the garbage baffles 3. However, this assembly method can only be used to clean the garbage by inverting the sewage divider or manually cleaning. Compared with the above-mentioned method in which the garbage baffle 3 is connected to a portion of the partition 2, garbage cleaning is simpler and is the preferred method.

[0102] In a second aspect of the present disclosure, a tank cover assembly a is provided. The tank cover assembly includes a cover body 1 and the aforementioned sewage separator, wherein a separator 2 of the sewage separator is connected to the bottom of the cover body 1. When the tank cover assembly a is assembled in a sewage tank b, the separator 2 divides the sewage tank b into a first cavity located above the separator 2 and a second cavity located below the separator 2. The first cavity and the second cavity are connected via a first leaking portion 202.

[0103] The box cover assembly a provided by the present disclosure has a partition 2 connected to the bottom of the cover body 1. When the box cover assembly a is assembled in the sewage tank b, the partition 2 divides the sewage tank b into a first cavity located above the partition 2 and a second cavity located below the partition 2. After the sewage and solid waste are sucked into the first cavity, the sewage flows into the second cavity through the first leaking portion 202 to achieve solid-liquid separation in the sewage tank b. When cleaning the sewage tank b, it is only necessary to pull the box cover assembly a away from the sewage tank b. During the pulling process, the sewage in the sewage tank b flows into the sewage tank b through the first leaking portion 202, and the solid waste in the sewage remains on the partition 2 of the box cover assembly a. Therefore, the box cover assembly a and the sewage tank b can be dumped separately to quickly clean the solid waste and sewage, thereby improving the user experience and having good practicality.

[0104] With reference to Figure 2 , in some embodiments, the tank cover assembly a further includes a deflector 4 positioned above the mounting hole 201. When the tank cover assembly a is assembled within the sewage tank b, the deflector 4 is positioned above the suction pipe e. When the sewage tank b is in use, sewage within the sewage tank b is ejected through the top of the suction pipe e, blocked by the deflector 4, and then collected within the first chamber.

[0105] 2 , in a specific implementation, the air deflector 4 may be a U-shaped structure with the opening of the U-shaped structure facing downward, and the side walls on both sides of the air deflector 4 may be connected to the partition 2 via brackets 5 .

[0106] 2 , in some embodiments, a baffle plate 401 may be provided on the rear side of the air guide cover, so that the air guide groove forms a cover structure with a bottom and an open front side.

[0107] In addition, in the related art, when the floor scrubber is running, the water in the sewage tank may collide with the inner wall of the sewage tank to generate water splashes. When the draft element is running, the water splashes may be sucked into the draft element, affecting the normal operation of the draft element.

[0108] Based on the above technical problems, the present disclosure provides a box cover assembly, which includes the above-mentioned separator.

[0109] The cover body 1 is also provided with an air inlet 102. The parts of the cover body 1 on both sides of the air inlet 102 abut against the inner wall of the sewage tank b, thereby roughly dividing the first cavity into two parts. The splashes generated by the water in the part facing away from the air inlet 102 will be blocked by the parts of the cover body 1 on both sides of the air inlet 102, so as to avoid to a certain extent the risk of splashes generated by the collision between the water in the sewage tank b and the inner wall of the sewage tank b being sucked into the air inducing member d, so that the air inducing member d can operate normally, which has good practicality.

[0110] In conjunction with Figure 2, in some embodiments, the cover body 1 can be integrally formed on the top of the air deflector 4, and the air inlet 102 is provided on the side wall of the cover body 1, that is, the air inlet 102 is provided above the air deflector 4. Two water retaining members 7 are also connected to the cover body 1, and the two water retaining members 7 are provided on both sides of the air inlet 102. When the box cover assembly a is assembled in the sewage tank b, the two water retaining members 7 abut against the inner wall of the sewage tank b. The two water retaining members 7 and the cover body 1 can roughly divide the first cavity into two parts. The splashes generated by the water located in the part facing away from the air inlet 102 will be blocked by the water retaining members 7 of the cover body 1 located on both sides of the air inlet 102, so as to avoid, to a certain extent, the risk of the splashes generated by the collision between the water in the sewage tank b and the inner wall of the sewage tank b being sucked into the air induction member d, so that the air induction member d can operate normally.

[0111] In some embodiments, the air inlet 102 can be provided on the front side of the cover 1, and two water retaining members 7 can be provided on both sides of the width direction of the cover 1. The two water retaining members 7 and the cover 1 can divide the first cavity into two parts, front and back. When the cleaning device is in a backward tilted or flat position for operation, the two water retaining members 7 can retain water below the two water retaining members 7 (behind the upper part of the sewage tank b), preventing the splash caused by the collision of water with the sewage tank b cover bracket 5 from being sucked into the air outlet duct, so that the air induction member d can operate normally.

[0112] In some embodiments, the two water retaining members 7 can be integrally formed with the sewage tank b, and at least portions of the two water retaining members 7 can elastically abut against the inner wall of the sewage tank b to improve the sealing effect between the water retaining members 7 and the inner wall of the sewage tank b. In a specific implementation, a second sealing member 701 (as shown in FIG. 2 ) can be provided on the outer sides of the two water retaining members 7, or the outer sides of the water retaining members 7 can be elastic, for example, by injection molding a sheet of elastic material on the outer sides of the water retaining members 7, so that when the tank cover assembly a is assembled on the sewage tank b, the periphery of the water retaining member 7 can be appropriately compressed to improve the sealing effect between the water retaining member 7 and the inner wall of the sewage tank b.

[0113] 2 , in some embodiments, an air outlet cavity 101 is provided on the cover body 1, an air inlet 102 is provided on the side wall of the air outlet cavity 101, and a water retaining portion 103 is provided at the bottom of the air outlet cavity 101 to prevent sewage in the sewage tank b from entering the air outlet cavity 101. When the cleaning device is operating in the forward or lying position, the water retaining portion 103 can prevent the water in the sewage tank b from entering the air outlet cavity 101 through the air inlet 102, and also prevent the water from further entering the air induction member d, thereby protecting the air induction member d. When the cleaning device is tilted in other directions, since the air outlet cavity 101 is not provided with an air inlet 102 elsewhere, the water in the sewage tank b cannot enter the air outlet cavity 101. This can improve the phenomenon of water in the sewage tank b entering the air induction member d through the air inlet 102, thereby ensuring the normal operation of the air induction member d to a certain extent, and has excellent practicality.

[0114] In some embodiments, at least a portion of the bottom of the air outlet cavity 101 is provided with an inclined surface, the side of the inclined surface facing the air inlet 102 being lower than the side of the inclined surface away from the air inlet 102, and the inclined surface is configured as a water retaining portion 103. When the cleaning device is working in a forward or lying position, the water retaining portion 103 can block the water in the sewage tank b from entering the air outlet cavity 101 through the air inlet 102, and also prevent the water from further entering the air inducing member d, thereby protecting the air inducing member d. There can be only one inclined surface, or multiple inclined surfaces can be provided along the air inlet direction (as shown in FIG6 ). The slopes of the multiple inclined surfaces can be consistent or inconsistent, and there is no limitation here.

[0115] In other embodiments, at least a portion of the bottom of the air outlet cavity 101 may be provided with a step, which may be configured as a water retaining portion 103. When the cleaning device is operating in the forward-facing or horizontal position, the water retaining portion 103 prevents water from entering the air outlet cavity 101 through the air inlet 102, thereby preventing further water from entering the air induction member d, thereby protecting the air induction member d. This step may be provided as a single step or as multiple steps spaced apart (as shown in FIG. 7 ), without limitation.

[0116] In the related art, if the sewage tank b is in an inclined position, the surface of the water in the sewage tank b is close to the draft member d, and water droplets may be generated on the surface of the water in the sewage tank b. When the draft member d is running, too many water droplets may be sucked into the draft member d, affecting the normal operation of the draft member d.

[0117] Based on the above technical problems, the present disclosure continues to improve the box cover assembly a. Figure 8 shows a structural schematic diagram of the second perspective of Figure 2, and Figure 9 shows a structural schematic diagram of the third perspective of Figure 2. In combination with Figures 8 and 9, the box cover assembly a also includes two first electrodes 8, and the two first electrodes 8 are respectively connected to the cover body 1. Each first electrode 8 has a first trigger part 801, which is used to generate a trigger signal when the two first trigger parts 801 are connected by the water in the sewage tank b, so that the cleaning equipment adjusts the operating parameters of the air induction member d according to the corresponding trigger signal.

[0118] Figure 10 shows a logic control diagram for a cleaning device having the sewage tank shown in Figure 1 . In conjunction with Figure 10 , the tank cover assembly a provided by the present disclosure, when water in the sewage tank b conducts through the two first triggering units 801, the two first triggering units 801 generate trigger signals, causing the cleaning device to adjust the operating parameters of the draft member d according to the corresponding trigger signals. This reduces the operating power of the draft member d when the sewage tank b is in an inclined position, thereby reducing the risk of water droplets generated on the surface of the water in the sewage tank b being drawn into the draft member d, allowing the draft member d to operate normally. This has excellent practicality. The inclined position is set as the target position. When the cleaning device is in other positions, there is no water between the two first triggering units 801, the first triggering unit 801 and the second triggering unit 1001 are not conducting, and no trigger signal for adjusting the operating parameters of the draft member d is generated. The draft member d returns to its normal set power value, allowing the device to operate normally.

[0119] In conjunction with Figure 10, the cleaning device may further include a controller c. When the sewage tank b is in the target posture, the water in the sewage tank b conducts the two first triggering parts 801 to output a trigger signal to the controller c. This trigger signal can be defined as a first trigger signal. Upon receiving the first trigger signal, the controller c outputs a control signal to the draft member d to reduce the operating power of the draft member d, thereby reducing the risk of water droplets generated on the surface of the water in the sewage tank b being sucked into the draft member d, allowing the draft member d to operate normally. When the sewage tank b is not in the above-mentioned target posture, there is no water between the two first triggering parts 801, the two first triggering parts 801 are not conducting, the controller c does not receive the above-mentioned first trigger signal, and the draft member d accordingly does not receive the control signal. The draft member d returns to the normal set power value to enable the device to operate normally.

[0120] In related art, when a floor scrubber is in operation, a tilted sewage tank B produces more water droplets on the surface of the water inside the tank B than a vertical tank B. Based on this, the target posture of the sewage tank B shown in this disclosure is set to the tilted posture of the sewage tank B, as shown in Figure 11.

[0121] In addition, when the user pushes or pulls the floor scrubber, more water droplets are generated on the surface of the water in the sewage tank B. Based on this, the sewage tank B shown in the present disclosure is tilted toward the back of the sewage tank B, that is, when the sewage tank B is tilted toward the user, and the posture of the sewage tank B is set as the target posture.

[0122] In some embodiments, the inclination angle of the sewage tank b can be less than or equal to 20°, that is, when the sewage tank b is at this inclination angle, the controller c is triggered to output a control signal to reduce the operation of the air induced member d. When the sewage tank b is at other angles, the air induced member d maintains the normally set operating power, so that the mopping machine has good cleaning efficiency.

[0123] With reference to Figure 9 , in some embodiments, two first electrodes 8 are connected in parallel to the cover 1, with at least portions of the two first electrodes 8 positioned below the cover 1, each configured as two first triggering portions 801. Viewed across the width of the sewage tank b, the first triggering portions 801 of the two first electrodes 8 are located in the same direction. When the sewage tank b is in the target position and the water within the sewage tank b submerges the first triggering portions 801 of the two first electrodes 8, the water within the sewage tank b turns on the first triggering portions 801 of the two first electrodes 8, transmitting a control signal to the controller c.

[0124] FIG12 is a schematic diagram of the structure of the first electrode in FIG9 . In conjunction with FIG12 , in some embodiments, the first electrode 8 may include a first electrode piece 802 and a second electrode piece 803 . The first electrode piece 802 passes through the cover 1 and extends below the bottom of the cover 1 , i.e., the first electrode piece 802 is arranged vertically, and the portion of the first electrode piece 802 arranged below the bottom of the cover 1 is configured as the first triggering portion 801 . One end of the second electrode piece 803 is connected to the top of the first electrode piece 802 . The second electrode piece 803 is arranged at the top of the cover 1 . The second electrode piece 803 may be attached to the top of the cover 1 in the front-to-back direction. The entire portion of the first electrode piece 802 arranged below the bottom of the cover 1 may serve as the first triggering portion 801 , or the portion of the first electrode piece 802 arranged below the bottom of the cover 1 may serve as the first triggering portion 801 , without limitation. The first electrode piece 802 and the second electrode piece 803 may form an inverted L-shaped structure. In other embodiments, the top of the first pole piece 802 may also extend out of the cover 1 , and one end of the second pole piece 803 is connected to the middle of the first pole piece 802 , so that the first pole piece 802 and the second pole piece 803 form an inverted T-shaped structure.

[0125] 12 , in some embodiments, the first electrode 8 may further include a third electrode piece 804. The bottom end of the third electrode piece 804 is connected to the other end of the second electrode piece 803, and the top end extends away from the cover 1. The top end of the third electrode piece 804 may be connected to a contact piece provided on the cover 1 via a wire. When the sewage tank b is placed on the main unit of the floor scrubber, the first contact piece will contact and connect with the corresponding contact point of the main unit.

[0126] In conjunction with Figure 9 , the tank lid assembly a may further include a spacer 9 connected to the lid body 1. In some embodiments, a spacer 9 is disposed on the outside of at least one first triggering portion 801. Two spacers 9 are provided, one on each first triggering portion 801. The spacer 9 is provided with a water inlet hole 901. The spacer 9 is an insulator. The provision of the spacer 9 prevents the formation of a water film between the two first triggering portions 801, thereby preventing the two from connecting. This prevents the sewage tank b from being in an undesirable position and generating a first trigger signal to the controller c. The water inlet hole 901 provided on the spacer 9 allows water to pass through to generate the first trigger signal. In a specific implementation, the spacer 9 may be made of plastic and may have a square structure. It may be integrally molded, clipped, or bonded to the bottom of the lid body 1. The bottom of the spacer 9 is open, serving as the water inlet hole 901 for the spacer 9. Alternatively, the water inlet hole 901 may be provided on the side of the spacer 9, without limitation.

[0127] In other embodiments, an isolation member 9 may be provided between the two first triggering parts 801 . The isolation member 9 may be plate-shaped and may be integrally formed, snap-fitted or bonded to the bottom of the cover 1 , which will not be described in detail here.

[0128] In conjunction with Figures 8, 9, and 10, in some embodiments, the tank cover assembly a further comprises a second electrode 10 and a third electrode 11, both of which are connected to the cover body 1. The second electrode 10 has a second triggering portion 1001, which is disposed below the partition 2; and the third electrode 11 has a fourth triggering portion 1101, which is disposed below the partition 2. When the sewage tank b is at a first target water level, the water in the sewage tank b conducts the second triggering portion 1001 and the fourth triggering portion 1101 to output a second triggering signal to the controller c. Upon receiving the second triggering signal, the controller c outputs a water level warning message. Specifically, the second triggering portion 1001 of the second electrode 10 and the fourth triggering portion 1101 of the third electrode 11 cooperate to output a first water-full message to alert a user to the water level in the sewage tank b. The device may stop operating and issue a warning message to the user to clean the sewage tank b. The water level warning message may be an audible or visual signal, without limitation. The first target water level may be the water level in the sewage tank b when the fuselage is in an upright position or in an inclined position with an inclination angle greater than or equal to 30°.

[0129] In conjunction with Figures 8, 9, and 10, in some embodiments, the fourth triggering unit 1101 and the second triggering unit 1001 can be at the same or nearly the same height. In other embodiments, the fourth triggering unit 1101 can be positioned below the second triggering unit 1001. That is, there is a height difference between the bottom of the fourth triggering unit 1101 and the second triggering unit 1001. When the scrubber body twists, the water in the sewage tank b twists accordingly, causing the second triggering unit 1001 and the fourth triggering unit 1101 to communicate through the water in the sewage tank b, thereby achieving water level detection in the twisted state, as shown in Figure 13.

[0130] In conjunction with Figures 8, 9, and 10, in some embodiments, the second electrode 10 is further provided with a third triggering portion 1002, which is disposed between the cover 1 and the partition 2. Specifically, the second triggering portion 1001 is disposed below the third triggering portion 1002. When the sewage tank b reaches a second target water level, the water in the sewage tank b conducts electricity through the third triggering portion 1002 and one of the first triggering portions 801, thereby outputting a third triggering signal to the controller c. Upon receiving the third triggering signal, the controller c outputs a full water signal, causing the device to stop operating and issuing a warning to the user to clean the sewage tank b. This warning signal may be an audible or visual warning, without limitation. The second target water level may be the water level in the sewage tank b when the device is tilted at an angle of less than or equal to 30°, as shown in Figure 14.

[0131] 8 and 9 , in some embodiments, two second electrodes 10 are provided opposite each other, one on each side of the width of the third electrode 11. When the cleaning device is twisted leftward or rightward, the second trigger portion 1001 and the third trigger portion 1002 communicate with the corresponding trigger portion through the water, enabling water level detection in the twisted state, which is highly practical, as shown in FIG13 .

[0132] 8 and 9 , the two second electrodes 10 can be arranged on the side facing away from the user relative to the third electrode 11, that is, the two second electrodes 10 can be arranged on the front side of the sewage tank b. When the device is tilted forward or lying flat, the second trigger part 1001 and the third trigger part 1002 will be connected to the corresponding trigger part through the water in the sewage tank b, thereby realizing water level detection when the body is tilted or lying flat, as shown in FIG14 , which has good practicality.

[0133] FIG15 is a schematic structural diagram of the second electrode in FIG8 and FIG9. In conjunction with FIG15, in some embodiments, the second electrode 10 may include a shell 1003, a first pole 1004, a second pole 1005, a first connecting sleeve 1006, and a second connecting sleeve 1007, wherein the top ends of the first connecting sleeve 1006 and the second connecting sleeve 1007 are both disposed on the shell 1003, the shell 1003 is connected to the cover 1, a distance is provided between the bottom end of the first connecting sleeve 1006 and the separator 2, the bottom end of the second connecting sleeve 1007 passes through the separator 2, and the first connecting sleeve 1006 and the second connecting sleeve 1007 are disposed on the shell 1003. A pole 1004 is disposed in the first connecting sleeve 1006, and the bottom end of the first pole 1004 extends out of the bottom of the first connecting sleeve 1006. The portion of the first pole 1004 extending out of the bottom of the first connecting sleeve 1006 is configured as the third triggering portion 1002; a second pole 1005 is disposed in the second connecting sleeve 1007, and the bottom end extends out of the bottom of the second connecting sleeve 1007. The portion of the second pole 1005 extending out of the bottom of the second connecting sleeve 1007 is configured as the second triggering portion 1001.

[0134] 15 , in some embodiments, the second electrode 10 may further include a fourth electrode piece 1008 and a fifth electrode piece 1009. One end of the fourth electrode piece 1008 is disposed within the housing 1003, and the other end extends out of the housing 1003. The fourth electrode piece 1008 is connected to the first pole piece 1004 and the second pole piece 1005. The bottom end of the fifth electrode piece 1009 is connected to the other end of the fourth electrode piece 1008, and the top end of the fifth electrode piece 1009 passes through the cover 1. The upper end of the fifth electrode piece 1009 may be connected to a contact piece provided on the tank cover assembly via a wire. When the sewage tank b is placed on the main unit of the floor scrubber, the third contact piece will contact and connect with the corresponding contact point of the main unit.

[0135] In specific implementation, the shell 1003 can be connected to the corresponding parts of the pole and the pole piece in the form of overmolding. A mounting hole matching the shell 1003 is provided on the cover 1, and the shell 1003 is fixedly connected in the mounting hole. The first pole 1004 and the second pole 1005 can be inserted into the fourth pole piece 1008 with an interference fit to achieve good conductive performance. The fifth pole piece 1009 can be integrally formed with the fourth pole piece 1008, and the two can form an L-shaped structure or a T-shaped structure, which is not limited here.

[0136] 2 , 3 , 5 , 8 , and 9 , in some embodiments, a waterproof member 12 is provided on the top of the separator 2, and at least a portion of the second connecting sleeve 1007 passes through the waterproof member 12. The drain member can be in the form of a sleeve, which can be integrally formed on the top of the separator 2. The second connecting sleeve 1007 can pass through the drain member through an interference fit, thereby providing waterproof protection for the second connecting sleeve 1007 and improving the service life of the second connecting sleeve 1007 and the second pole 1005.

[0137] 8 and 9 , in some embodiments, the third electrode 11 may be disposed on the perpendicular midline of the two second electrodes 10 , or may be offset from the perpendicular midline of the two second electrodes 10 , which is not limited herein.

[0138] In conjunction with Figures 8 and 9 , in some embodiments, the cover assembly a may further include a support member 13. This support member 13 may be plate-shaped, with its top end connected to the bottom of the isolation plate 401 and its bottom end connected to the separator 2. The support member 13 may be provided with a groove 130101. The third electrode 11 is disposed in the groove 1301 of the support member 13 and may be fixed to the groove 1301 of the support member 13 by bolts or adhesive. The bottom end of the third electrode 11 extends beyond the separator 2. The portion of the third electrode 11 extending beyond the bottom end of the support member 13 may be configured as a fourth triggering unit 1101.

[0139] 8 and 9 , in some embodiments, the opening of the trough body 1301 faces the rear side, and the avoidance portion 302 of the garbage baffle 3 is connected to the rear side of the bottom of the trough body 1301 to wrap a portion of the third electrode 11 between the avoidance portion 302 and the support member 13 to provide waterproof protection for the third electrode 11 and improve the service life of the third electrode 11.

[0140] It should be noted that the non-triggering portion of each electrode can be covered with an electrode shell. This electrode shell can be made of hydrophobic and oleophobic Teflon or PP, and its surface is smooth, effectively preventing the adhesion of sewage in the sewage tank b. In addition, because the electrodes used for water level detection are cylindrical, the water film generated between the electrodes can be prevented from causing the electrodes to conduct and causing the device to falsely report the water level, thus providing excellent practicality.

[0141] In a second aspect, the present disclosure further provides a sewage tank b. Referring to FIG1 , the sewage tank b comprises a tank body b1 and the aforementioned tank cover assembly a. The tank body b1 is provided with an inlet and outlet b2, and the cover body 1 of the aforementioned tank cover assembly a is detachably mounted within the inlet and outlet b2 of the tank body b1.

[0142] The sewage tank b provided by the present disclosure can not only dump the box cover assembly a and the sewage tank b separately to quickly clean up solid waste and sewage to improve user experience, but also reduce the risk of water splashes in the sewage tank b colliding with the inner wall of the sewage tank b and being sucked into the draft member d, affecting the normal operation of the draft member d. It can also detect the water level of the sewage tank b in different postures and prevent the water in the sewage tank b from entering the draft member d, which has good practicality.

[0143] In the related art, when the sewage in the sewage tank reaches a set water level, the sewage tank needs to be removed from the main unit to clean the sewage tank. During the removal process, the sewage tank is easy to fall off, and there is a risk of the sewage in the sewage tank spilling onto the ground, causing secondary pollution.

[0144] Figure 16 is a schematic diagram of the structure of a cleaning device in one or more embodiments of the present application, Figure 17 is a schematic diagram of the cleaning device in Figure 16 in an unlocked state, and Figure 18 is a schematic diagram of the structure of the sewage tank in Figure 16. In conjunction with Figures 1-3, the sewage tank provided in the present application is assembled on a main unit and includes a housing b1. At least a portion of the outer circumference of the housing b1 is provided with anti-slip grooves 13. When the sewage tank is assembled on the main unit 12, the anti-slip grooves 13 are provided on the exterior of the main unit 12.

[0145] The sewage tank provided in the present application has anti-slip grooves 13 on at least a portion of the outer peripheral surface of the box body b1 of the sewage tank, and the anti-slip grooves 13 are arranged on the outside of the main unit 12. The user can hold the box body b1 with the anti-slip grooves 13 to remove the sewage tank from the main unit 12, thereby avoiding to a certain extent the risk of the sewage tank falling off during the disassembly process, causing the sewage in the sewage tank to spill onto the ground and cause secondary pollution, and has good practicality.

[0146] 18 , anti-slip grooves 13 are provided on at least a portion of the outer peripheral surface of the box body b1. The anti-slip grooves 13 are provided on the outside of the accommodating cavity 11. The user can hold the box body b1 with the anti-slip grooves 13 to disassemble the sewage tank, thereby avoiding to a certain extent the risk of the sewage tank falling off during the disassembly process, causing the sewage in the sewage tank to spill onto the ground and cause secondary pollution, and has good practicality.

[0147] With reference to Figure 18 , in some embodiments, two anti-slip grooves 13 may be provided, one on either side of the width of the housing b1. The circumference between the two anti-slip grooves 13 is approximately the same as the palm of a human hand. When the user removes the sewage tank, the user's thumb applies pressure on one anti-slip groove 13, while the user's other four fingers apply pressure on the other. This means that both primary points of the user's palm apply pressure on the anti-slip grooves 13. This adapts to the user's grip on the housing b1 and makes it easier for the user to remove the sewage tank from the main unit 12.

[0148] In some embodiments, the anti-slip pattern 13 includes multiple patterns arranged along the height direction of the box b1, and the multiple patterns are arranged in parallel. In other embodiments, the anti-slip pattern 13 can also be provided only in the middle or end of the outer peripheral surface of the box b1, etc., which is not limited here.

[0149] It should be noted that the anti-slip grooves 13 may be provided on the entire outer peripheral surface of the portion of the box body b1 exposed to the main unit 12 , and this is not limited here.

[0150] Figure 19 shows a structural diagram of Figure 18 from another perspective. In conjunction with Figure 19, in some embodiments, the sewage tank further includes a tank cover assembly f. Figure 20 shows a schematic diagram of the tank cover assembly assembled into the tank body. In conjunction with Figures 19 and 20, the tank cover assembly f is detachably disposed at the inlet and outlet b2 of the tank body b1. The tank cover assembly f includes a cover body 1 and a handle 105. The cover body 1 is detachably disposed at the inlet and outlet b2 of the tank body b1. The handle 105 is rotatably connected to the top of the cover body 1. The user can hold the tank cover assembly f by the handle 105 and install the tank cover assembly f into the tank body b1 from top to bottom.

[0151] When cleaning the sewage tank, it is necessary to remove the tank cover assembly f from the tank body b1. In this application, since a handle 105 is provided on the top of the cover body 1, when installing the tank cover assembly f on the sewage tank, the user can use the handle 105 to lift the tank cover assembly f to above the inlet and outlet b2 of the tank body b1 of the sewage tank, align the tank cover assembly f with the inlet and outlet b2 of the tank body b1, and then release the handle 105. The tank cover assembly f can be quickly assembled in the tank body b1. At the same time, since the handle 105 is rotatably connected to the cover body 1, after releasing the handle 105, the handle 105 adheres to the upper surface of the tank cover under the action of gravity, and does not hinder the assembly of the sewage tank on the main unit 12. When it is necessary to remove the tank cover assembly f from the sewage tank, the user can quickly remove the tank cover assembly f from the sewage tank by lifting the handle 105, which is convenient and quick.

[0152] Figure 21 shows a schematic diagram of the lid assembly with the handle in a vertical position, and Figure 22 shows the structure of Figure 18 without the filter element. In conjunction with Figures 21 and 22, in some embodiments, a mounting frame 14 is provided on the top of the lid 1. The mounting frame 14 has two mounting side walls 1401 extending along the width of the lid b1. The ends of the handle 105 are rotatably connected to the two mounting side walls 1401. In a specific implementation, the mounting frame 14 is generally U-shaped and can be integrally formed on the top of the lid 1. The ends of the handle 105 can be connected to the mounting side walls 1401 on the same side via a rotating shaft.

[0153] 21 and 22 , in some embodiments, the mounting frame 14 may further include a limiting sidewall 1402 connected to the side of the two mounting sidewalls 1401 facing away from the interior of the main unit 12. The limiting sidewall 1402 includes a limiting portion 1403 corresponding to the handle 105, and the handle 105 can rest against the limiting portion 1403. When a user holds the case cover assembly f by the handle 105, the limiting portion 1403 limits the position of the handle 105, allowing the handle 105 to remain in an upright position.

[0154] 21 and 22 , in some embodiments, the angle between the limit portion 1403 and the horizontal plane extending from the cover body 1 toward the interior of the main unit 12 is less than or equal to 90°. When the tank cover assembly f is assembled in place, the user releases the handle 105, and the handle 105 can be rotated to the top of the cover body 1 under the operation of gravity for storage, thereby facilitating the assembly of the sewage tank on the main unit 12.

[0155] 21 and 22 , in some embodiments, the stopper 1403 corresponds to an end of the handle 105, and the end of the handle 105 can abut against the corresponding stopper 1403. In other embodiments, the stopper 1403 can also correspond to the middle of the handle 105, and the middle of the handle 105 can abut against the corresponding stopper 1403, and this is not limited here.

[0156] With reference to Figures 21 and 22 , in some embodiments, a guide surface 104 is provided on the top of the cover 1. This guide surface 104 extends downward from the stop 1403 toward the interior of the main unit 12, and the angle between the guide surface 104 and the stop 1403 is obtuse. A handle 105 can be rotated onto the guide surface 104 of the cover 1. Once the tank cover assembly f is fully assembled, the user releases the handle 105, which, under the force of gravity, rotates onto the guide surface 104 of the cover 1, facilitating assembly of the sewage tank onto the main unit 12.

[0157] Figure 23 shows a schematic diagram of the structure of the tank cover assembly with the handle positioned on the guide surface. In conjunction with Figures 21-23, the cover body 1 is also provided with an air outlet channel 106, and the cleaning device is also provided with an induced draft fan. When the induced draft fan is operating, air in the sewage tank is drawn out through the air outlet channel 106, creating a negative pressure inside the sewage tank. The sewage sucked up by the cleaning device during operation is then directed into the sewage tank for storage. A filter 15 is provided in the air outlet channel 106 to prevent air impurities in the sewage tank from entering the induced draft fan and affecting the normal operation of the induced draft fan. The top of the air outlet channel 106 protrudes from the top of the cover body 1. The above-mentioned mounting frame 14 is located on the side of the top of the air outlet channel 106 away from the inside of the main unit 12. The above-mentioned guide surface 104 is located on the side of the top of the air outlet channel 106 facing the inside of the main unit 12. When the sewage tank is assembled on the main unit 12, the handle 105 is also laid on the side of the top of the air outlet channel 106 facing the inside of the main unit 12. The height of the handle 105 is not higher than the height of the top of the air outlet channel 106.

[0158] In a third aspect of the present disclosure, the present disclosure further provides a cleaning device, which includes the above-mentioned sewage tank b.

[0159] The cleaning device provided by the present disclosure can not only dump the box cover assembly a and the sewage tank b respectively to quickly clean the solid garbage and sewage in the sewage tank to improve the user experience, but also reduce the risk of water splashes in the sewage tank b colliding with the inner wall of the sewage tank b and being sucked into the draft member d, affecting the normal operation of the draft member d. It can also detect the water level of the sewage tank b in different postures and prevent the water in the sewage tank b from entering the draft member d, which has good practicality.

[0160] The cleaning device may be a mop or other types of cleaning devices, such as a water suction machine or a sweeper, etc., and is not limited here.

[0161] In a fourth aspect of the present disclosure, the present disclosure further provides a cleaning system, which includes a base station and the above-mentioned cleaning device used in conjunction with each other.

[0162] The cleaning system provided by the present disclosure can separately dump the box cover assembly a and the sewage tank b of the cleaning equipment to quickly clean the solid waste and sewage in the sewage tank, thereby improving the user experience. It can also reduce the risk of water splashes in the sewage tank b colliding with the inner wall of the sewage tank b and being sucked into the draft member d, affecting the normal operation of the draft member d. It can also detect the water level of the sewage tank b in different postures and prevent the water in the sewage tank b from entering the draft member d, thus having good practicality.

[0163] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0164] In the description of the present disclosure, 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", "clockwise" and "counterclockwise" 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 disclosure 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 disclosure.

[0165] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0166] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood in a broad sense. For example, "fix" can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two elements or an interaction between two elements, unless otherwise expressly specified. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0167] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0168] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0169] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this disclosure.

[0170] Although the embodiments of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the claims and their equivalents.

[0171] The above description fully discloses the specific embodiments of the present disclosure. It should be noted that any modifications made by those skilled in the art to the specific embodiments of the present disclosure do not depart from the scope of the claims of the present disclosure. Accordingly, the scope of the claims of the present disclosure is not limited to the aforementioned specific embodiments.

Claims

1. A sewage separator, detachably installed on the sewage tank of a cleaning device, the sewage separator comprising: A partition member provided with a first water leakage portion, the partition member dividing the sewage tank into two cavities located above and below the partition member, and the two cavities communicating through the first water leakage portion; Wherein, under the condition of using the sewage tank, the sewage in the sewage tank gathers in the upper cavity, and the water body in the sewage gathered in the upper cavity is drained through the first water leakage portion into the lower cavity, so that the solid waste in the sewage is stored in the upper cavity. When the sewage separator is removed from the sewage tank, the solid waste is stored on the partition member and separated from the sewage tank, and the sewage realizes solid-liquid separation through the partition member.

2. The sewage separator according to claim 1, wherein, At least part of the periphery of the partition member elastically abuts against the inner wall of the sewage tank.

3. The sewage separator according to claim 1, wherein, The sewage separator further comprises: A garbage baffle, connected to the partition member and arranged in the upper cavity, the garbage baffle being provided with a second water leakage portion, and the first water leakage portion being arranged on one side of the garbage baffle.

4. The sewage separator according to claim 3, wherein The garbage baffle is connected to at least part of the periphery of the partition member.

5. The sewage separator according to claim 4, wherein, The garbage baffle is connected to the rear side of the partition member.

6. The sewage separator according to claim 5, wherein, At least part of the rear side of the garbage baffle is provided with an avoidance portion extending towards the front side of the partition member, the partition member being provided with a third water leakage portion, and at least part of the third water leakage portion being arranged within the projection of the avoidance portion.

7. The sewage separator according to claim 1, wherein There is a water extraction pipe in the sewage tank, and the partition member is provided with an installation hole for the water extraction pipe to pass through.

8. A lid assembly for mounting on a sewage tank of a cleaning device, wherein, The lid assembly comprises: A lid body; The sewage separator according to any one of claims 1-7, the partition member of the sewage separator being connected to the lower part of the lid body.

9. According to the lid assembly of claim 8, there is a water extraction pipe in the sewage tank, and the lid assembly further comprises: A flow guide cover, which is arranged with a gap above the water extraction pipe under the condition that the lid assembly is assembled in the sewage tank.

10. The lid assembly according to claim 8, wherein, The side wall of the lid body is provided with an air inlet; two water blocking members are further connected to the lid body, and the two water blocking members are arranged on both sides of the air inlet; under the condition that the lid assembly is assembled in the sewage tank, the two water blocking members abut against the inner wall of the sewage tank.

11. The lid assembly according to claim 10, wherein, The air inlet is arranged on the front side of the lid body, and the two water blocking members are arranged on both sides in the width direction of the lid body.

12. The lid assembly according to claim 11, wherein, At least part of the two water blocking members elastically abuts against the inner wall of the sewage tank.

13. The lid assembly according to claim 11, wherein, An air outlet cavity is arranged on the lid body, the air inlet is arranged on the side wall of the air outlet cavity, and a water blocking portion is arranged at the bottom of the air outlet cavity to block the sewage in the sewage tank from entering the air outlet cavity.

14. The lid assembly according to claim 13, wherein, At least part of the bottom of the air outlet cavity is provided with an inclined surface, the side of the inclined surface facing the air inlet is lower than the side of the inclined surface away from the air inlet, and the inclined surface is configured as the water blocking portion.

15. The lid assembly according to any one of claims 8-14, wherein, The lid assembly further comprises: Two first electrodes are respectively connected to the cover body. Both of the two first electrodes have first trigger portions, which are used to generate a trigger signal when the two first trigger portions are conducted by the water body in the sewage tank, so that the cleaning device adjusts the operating parameters of the air guiding member according to the corresponding trigger signal.

16. The lid assembly according to claim 15, wherein, When the sewage tank is tilted towards the back of the sewage tank, the two first trigger portions are conducted by the water body in the sewage tank.

17. The lid assembly according to claim 15, wherein, The two first electrodes are connected to the cover body in parallel, and at least a part of the first electrode is arranged below the cover body to be configured as the first trigger portion.

18. The lid assembly according to claim 17, wherein, The box cover assembly further includes: An isolation member, connected to the cover body; wherein, the isolation member is arranged between the two first trigger portions; or / and, the isolation member is arranged outside at least one of the first trigger portions, and the isolation member is provided with a water inlet hole.

19. The lid assembly according to claim 15, wherein, The box cover assembly further includes: A second electrode and a third electrode, connected to the cover body. The second electrode has a second trigger portion, and the second trigger portion is arranged below the partition member; the third electrode has a fourth trigger portion, and the fourth trigger portion is arranged below the partition member; wherein; When the sewage tank is at a first target water level, the water body in the sewage tank conducts the second trigger portion and the fourth trigger portion to output a first full water message. The first target water level is the water level in the sewage tank when the sewage tank is in an upright posture, an inclined posture or a twisted posture.

20. The lid assembly according to claim 19, wherein, The fourth trigger portion is arranged below the second trigger portion; or, the fourth trigger portion and the second trigger portion have the same or nearly the same height.

21. The lid assembly according to claim 19 or 20, wherein, The second electrode is further provided with a third trigger portion, and the third trigger portion is arranged between the cover body and the partition member; wherein: When the sewage tank is at a second target water level, the water body in the sewage tank conducts the third trigger portion and the first trigger portion to output a second full water message. The second target water level is the water level in the sewage tank when the sewage tank is in a posture with an inclination angle less than or equal to a preset inclination angle.

22. The lid assembly according to claim 21, wherein, There are two second electrodes arranged opposite to each other, and the two second electrodes are arranged on both sides in the width direction of the third electrode.

23. The lid assembly according to claim 22, wherein, The second electrode includes: A first connecting sleeve, with the top end connected to the cover body and a distance between the bottom end and the partition member; A second connecting sleeve, with the top end connected to the cover body and the bottom end passing through the partition member; A first pole column, arranged in the first connecting sleeve, and the bottom end extends out of the bottom of the first connecting sleeve. The part where the first pole column extends out of the bottom of the first connecting sleeve is configured as the third trigger portion; A second pole column, arranged in the second connecting sleeve, and the bottom end extends out of the bottom of the second connecting sleeve. The part where the second pole column extends out of the bottom of the second connecting sleeve is configured as the second trigger portion.

24. The lid assembly according to claim 23, wherein, A waterproof member is arranged on the top of the partition member, and at least a part of the second connecting sleeve passes through the waterproof member.

25. A sewage tank, comprising: A box body, and the box body is provided with an inlet and an outlet; The lid assembly according to any one of claims 8-24, wherein the lid of the lid assembly is detachably disposed within the inlet / outlet.

26. The sewage tank according to claim 25, wherein, At least a portion of the outer peripheral surface of the box body is provided with anti-slip patterns, and when the sewage tank is assembled to the main machine, the anti-slip patterns are disposed outside the main machine.

27. The sewage tank according to claim 26, wherein, There are two anti-slip patterns, and the two anti-slip patterns are disposed on both sides in the width direction of the box body.

28. The sewage tank according to claim 26, wherein, The anti-slip patterns include a plurality of patterns arranged along the height direction of the box body, and the plurality of patterns are arranged side by side.

29. The sewage tank according to any one of claims 25-28, wherein, The lid assembly includes a lid and a handle, and the handle is rotatably connected to the top of the lid.

30. The sewage tank according to claim 29, wherein, An installation frame is provided on the top of the lid, the installation frame has two installation side walls arranged along the width direction of the box body, and both ends of the handle are rotatably connected to the two installation side walls.

31. The sewage tank according to claim 30, wherein, The installation frame further includes a limiting side wall, the limiting side wall is connected to one side of the two installation side walls facing away from the interior of the main machine, the limiting side wall has a limiting portion corresponding to the handle, and the handle can abut against the limiting portion.

32. The sewage tank according to claim 31, wherein, The included angle between the limiting portion and the horizontal plane extending from the lid into the interior of the main machine is less than or equal to 90°.

33. The sewage tank according to claim 31 or 32, wherein, A guiding surface is provided on the top of the lid, the guiding surface extends downward from the limiting portion in the direction of the interior of the main machine, the included angle between the guiding surface and the limiting portion is an obtuse angle, and the handle can be rotated onto the guiding surface of the lid.

34. A sewage tank, comprising: A box body, provided with an inlet / outlet; A lid assembly, detachably disposed at the inlet / outlet of the box body, the lid assembly includes a lid and a handle, the handle is rotatably connected to the top of the lid; the handle has a first position and a second position, when the handle is in the first position, the handle is received in the lid; when the handle is in the second position, the lid assembly can be separated from the box body by pulling the handle.

35. The sewage tank according to claim 34, wherein, An installation frame is provided on the top of the lid, the installation frame has two installation side walls arranged along the width direction of the box body, and both ends of the handle are rotatably connected to the two installation side walls.

36. The sewage tank according to claim 35, wherein, The installation frame further includes a limiting side wall, the limiting side wall is connected to one side of the two installation side walls facing away from the interior of the main machine, the limiting side wall has a limiting portion corresponding to the handle, and the handle can abut against the limiting portion.

37. The sewage tank according to claim 36, wherein, The included angle between the limiting portion and the horizontal plane extending from the lid into the interior of the main machine is less than or equal to 90°.

38. The sewage tank according to claim 36 or 37, wherein A guiding surface is provided on the top of the top cover, the guiding surface extends downward from the limiting portion in the direction of the interior of the main machine, the included angle between the guiding surface and the limiting portion is an obtuse angle, and the handle can be rotated onto the guiding surface of the lid.

39. The sewage tank according to any one of claims 34-38, wherein, The lid assembly further includes: A partition member, connected to the lower part of the lid, a first water leakage portion is provided on the partition member, the partition member divides the sewage tank into a first cavity above the partition member and a second cavity below the partition member, and the first cavity and the second cavity are communicated through the first water leakage portion.

40. The sewage tank according to claim 39, wherein, A water extraction pipe is arranged inside the box body; wherein, the sewage in the sewage tank is collected into the first cavity through the water extraction pipe, and the water body in the sewage collected into the first cavity is drained into the second cavity through the first water leakage part, so that the solid waste in the sewage is stored in the first cavity. When the sewage separator is removed from the sewage tank, the solid waste is stored on the partition member and separated from the sewage tank, and the sewage realizes solid-liquid separation through the partition member.

41. The sewage tank according to claim 40, wherein, At least part of the periphery of the partition member is elastically abutted against the inner wall of the sewage tank.

42. The sewage tank according to claim 40, wherein, The box cover assembly further includes: A garbage baffle, connected to the partition member and arranged in the first cavity. A second water leakage part is arranged on the garbage baffle, and the first water leakage part is arranged on one side of the garbage baffle.

43. The sewage tank according to claim 42, wherein, The garbage baffle is connected to at least part of the periphery of the partition member.

44. The sewage tank according to claim 43, wherein, The garbage baffle is connected to the rear side of the partition member.

45. The sewage tank according to claim 44, wherein At least part of the rear side of the garbage baffle is provided with an avoidance part, which extends towards the partition member. A third water leakage part is arranged on the partition member, and at least part of the third water leakage part is arranged within the projection of the avoidance part.

46. The sewage tank according to claim 45, wherein, The partition member is provided with a mounting hole for the water extraction pipe to pass through.

47. The sewage tank according to claim 39, wherein, The partition member is connected below the cover body.

48. The sewage tank according to claim 39, wherein, The box cover assembly further includes: A flow guide cover, which is arranged above the water extraction pipe with a gap under the condition that the box cover assembly is assembled in the sewage tank.

49. The sewage tank according to claim 39, wherein, An air inlet is arranged on the side wall of the cover body; two water blocking members are further connected to the cover body, and the two water blocking members are arranged on both sides of the air inlet; under the condition that the box cover assembly is assembled in the sewage tank, the two water blocking members are abutted against the inner wall of the sewage tank.

50. The sewage tank according to claim 39, wherein, The air inlet is arranged on the front side of the cover body, and the two water blocking members are arranged on both sides in the width direction of the cover body.

51. The sewage tank according to claim 50, wherein, At least part of the two water blocking members is elastically abutted against the inner wall of the sewage tank.

52. The sewage tank according to claim 50, wherein, An air outlet cavity is arranged on the cover body, the air inlet is arranged on the side wall of the air outlet cavity, and a water blocking part is arranged at the bottom of the air outlet cavity to block the sewage in the sewage tank from entering the air outlet cavity.

53. The sewage tank according to claim 52, wherein, At least part of the bottom of the air outlet cavity is provided with an inclined surface, the side of the inclined surface facing the air inlet is lower than the side of the inclined surface away from the air inlet, and the inclined surface is configured as the water blocking part.

54. The sewage tank according to claim 39 further includes: Two first electrodes, which are respectively connected to the cover body. Both of the two first electrodes have first trigger parts, which are used for generating a trigger signal when the two first trigger parts are conducted by the water body in the sewage tank, so that the cleaning device adjusts the operating parameters of the air guiding member according to the corresponding trigger signal.

55. The sewage tank according to claim 54, wherein, When the sewage tank is tilted towards the back of the sewage tank, the two first trigger parts are conducted by the water body in the sewage tank.

56. The sewage tank according to claim 54, wherein, The two first electrodes are connected in parallel to the cover body, and at least part of the first electrode is arranged below the cover body to be configured as the first trigger part.

57. The sewage tank according to claim 56, wherein, The lid assembly further includes: a separator connected to the lid body; wherein, the separator is disposed between the two first trigger portions; or / and, a separator is disposed outside at least one of the first trigger portions, and a water inlet hole is provided on the separator.

58. The sewage tank according to claim 54, further comprising: a second electrode and a third electrode, connected to the lid body, the second electrode having a second trigger portion disposed below the separator; the third electrode having a fourth trigger portion disposed below the separator; wherein; Under the condition that the sewage tank is at a first target water level, the water body in the sewage tank conducts the second trigger portion and the fourth trigger portion to output a first full water information, and the first target water level is the water level in the sewage tank when the sewage tank is in an upright posture, an inclined posture or a twisted posture.

59. The sewage tank according to claim 58, wherein, The fourth trigger portion is disposed below the second trigger portion; or, the fourth trigger portion and the second trigger portion are of the same or nearly the same height.

60. The sewage tank according to claim 58, wherein, The second electrode is further provided with a third trigger portion disposed between the lid body and the separator; wherein: Under the condition that the sewage tank is at a second target water level, the water body in the sewage tank conducts the third trigger portion and the first trigger portion to output a second full water information, and the second target water level is the water level in the sewage tank when the sewage tank is in a posture with an inclination angle less than or equal to a preset inclination angle.

61. The sewage tank according to claim 60, wherein, There are two second electrodes disposed opposite to each other, and the two second electrodes are disposed on both sides in the width direction of the third electrode.

62. The sewage tank according to claim 61, wherein, The second electrode includes: a first connecting sleeve, the top end of which is connected to the lid body, and there is a distance between the bottom end and the separator; a second connecting sleeve, the top end of which is connected to the lid body, and the bottom end passes through the separator; a first pole column disposed in the first connecting sleeve, and the bottom end extends out of the bottom of the first connecting sleeve, and the portion where the first pole column extends out of the bottom of the first connecting sleeve is configured as the third trigger portion; a second pole column disposed in the second connecting sleeve, and the bottom end extends out of the bottom of the second connecting sleeve, and the portion where the second pole column extends out of the bottom of the second connecting sleeve is configured as the second trigger portion.

63. The sewage tank according to claim 62, wherein, A waterproof member is provided on the top of the separator, and at least a part of the second connecting sleeve passes through the waterproof member.

64. The sewage tank according to claim 63, wherein, At least a part of the outer peripheral surface of the box body is provided with anti-slip patterns, and when the sewage tank is assembled on the host, the anti-slip patterns are disposed outside the host.

65. The sewage tank according to claim 66, wherein, There are two anti-slip patterns, and the two anti-slip patterns are disposed on both sides in the width direction of the box body.

66. The sewage tank according to claim 65, wherein, The anti-slip patterns include a plurality of patterns arranged along the height direction of the box body, and the plurality of patterns are arranged in parallel.

67. A cleaning device includes the sewage tank according to any one of claims 25-66.

68. A cleaning system includes the cleaning device according to claim 67 and a base station used in cooperation with the cleaning device.

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