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

Abstract

A wastewater tank cover assembly (a), a wastewater tank (b), a cleaning device, and a cleaning system. The wastewater tank cover assembly (a) is configured to be mounted on the wastewater tank (b) of the cleaning device, and the wastewater tank cover assembly (a) comprises: a cover body (1) provided with an air outlet cavity (101), wherein the side wall of the air outlet cavity (101) is provided with an air inlet (102), and the bottom of the air outlet cavity (101) is provided with a water blocking portion (103) to block wastewater in the wastewater tank (b) from entering the air outlet cavity (101). The wastewater tank cover assembly (a) can mitigate the phenomenon that the water in the wastewater tank (b) enters an air induction member (d) by means of an air outlet portion, thereby ensuring normal operation of the air induction member (d) to a certain extent and having good practicality.

Description

Sewage tank cover assembly, sewage tank, cleaning equipment and cleaning system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202323667260.8 filed on December 29, 2023 and priority to Chinese patent application No. 202420243384.9 and 202420246852.8 filed on January 31, 2024. The contents of the above-mentioned Chinese patent application disclosures are hereby incorporated by reference in their entirety as part of this disclosure. Technical Field

[0003] The present application belongs to the technical field of household appliances, and specifically relates to a sewage tank cover assembly, a sewage tank, a cleaning device, and a cleaning system. 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 related technologies, the draft element is connected to the sewage tank to extract air from the tank, creating a negative pressure in the tank. During actual use of the cleaning equipment, water in the sewage tank may enter the draft element through the air outlet of the sewage tank, affecting its normal operation. Summary of the Invention

[0006] The present disclosure provides a sewage tank cover assembly, a sewage tank, a cleaning device and a cleaning system, which aim to at least to some extent solve the technical problem that when the cleaning device is running, the water in the sewage tank may enter the air induction member through the air outlet, thereby affecting the normal operation of the air induction member.

[0007] A first aspect of the present disclosure provides a sewage tank cover assembly for installation on a sewage tank of a cleaning device, the sewage tank cover assembly comprising: a cover body provided with an air outlet cavity, an air inlet provided on a side wall of the air outlet cavity, and a water retaining portion provided at the bottom of the air outlet cavity to prevent sewage in the sewage tank from entering the air outlet cavity.

[0008] The sewage tank cover assembly provided by the present disclosure has an air outlet cavity provided on the cover body, and an air inlet provided on the side of the air outlet cavity. The air in the sewage tank can be led into the air outlet cavity through the air inlet, and then led out of the sewage tank through the air induction piece; since a water retaining portion is provided at the bottom of the air outlet cavity, when there is water in the sewage tank, if the equipment is tilted in the direction of the opening of the air inlet, the water retaining portion at the bottom of the air outlet cavity can block the water in the sewage tank, preventing the water from flowing into the air outlet cavity, and also preventing the water from further entering the air induction piece, thereby playing a role in protecting the air induction piece. If the equipment is tilted in other directions, since no air inlet is provided in other directions of the air outlet cavity, the water in the sewage tank cannot enter the air outlet cavity, thereby improving the phenomenon that the water in the sewage tank enters the air induction piece through the air outlet portion, so as to ensure the normal operation of the air induction piece to a certain extent, and has good practicality.

[0009] 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.

[0010] In some embodiments, at least a portion of the bottom of the air outlet cavity is provided with a step, and the step is configured as the water retaining portion.

[0011] In some embodiments, portions of the cover located on both sides of the air inlet abut against the inner wall of the sewage tank.

[0012] In some embodiments, two water retaining members are connected to the cover body, and the two water retaining members are arranged on both sides of the air inlet; wherein, when the sewage tank cover assembly is assembled in the sewage tank, the two water retaining members abut against the inner wall of the sewage tank.

[0013] 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.

[0014] In some embodiments, at least parts of the two water retaining members elastically abut against the inner wall of the sewage tank.

[0015] In some embodiments, the sewage tank cover assembly further includes: two first electrodes, respectively connected to the cover body, the two first electrodes respectively having a first triggering part, and the two first triggering parts are configured to generate a trigger signal when 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.

[0016] In some embodiments, when the sewage tank is tilted toward the back of the sewage tank, the two first triggering parts are activated by the water in the sewage tank.

[0017] 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.

[0018] In some embodiments, the sewage tank cover assembly further includes: an isolating member connected to the cover body; wherein the isolating member is arranged between the two first triggering parts; or / and, the isolating member is arranged on the outside of at least one of the first triggering parts, and a water inlet hole is provided on the isolating member.

[0019] In some embodiments, the sewage tank cover assembly further includes: a partition connected to the bottom of the cover body, and a first water leakage portion is provided on the partition. When the sewage tank cover assembly is assembled in the sewage tank, the partition divides the sewage tank into a first cavity located above the partition and a second cavity located below the partition, and the first cavity and the second cavity are connected through the first water leakage portion.

[0020] In some embodiments, the sewage 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 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.

[0021] 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.

[0022] In some embodiments, the second electrode is further provided with a third triggering portion, and the third triggering portion is provided between the cover body and the partition; wherein: when the sewage tank is at a second target water level, the water in the sewage tank conducts the third triggering portion and the first triggering portion 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.

[0023] In some embodiments, two second electrodes are provided, and the two second electrodes are oppositely arranged on both sides of the third electrode in the width direction.

[0024] In some embodiments, the second electrode includes: a first connecting sleeve, a top end of which is connected to the cover body, and a distance is provided between the bottom end of the first connecting sleeve and the separator; a second connecting sleeve, a top end of which is connected to the cover body, and the bottom end of the second connecting sleeve passes through the separator; a first pole, which is arranged in the first connecting sleeve, and the bottom end of the first pole extends out of the bottom of the first connecting sleeve, and the portion of the first pole extending out of the bottom of the first connecting sleeve is configured as the third triggering portion; a second pole, which is arranged in the second connecting sleeve, and the bottom end of the second pole extends out of the bottom of the second connecting sleeve, and the portion of the second pole extending out of the bottom of the second connecting sleeve is configured as the second triggering portion.

[0025] 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.

[0026] In some embodiments, the partition is arranged in an installation hole for the suction pipe to pass through; wherein, when the sewage tank is used, the sewage in the sewage tank is collected into the first cavity through the suction pipe, and the water in the sewage collected in the first cavity is drained into the second cavity through the first leaking part, so that the solid waste in the sewage is stored in the first cavity.

[0027] In some embodiments, at least a portion of the periphery of the partition elastically abuts against the inner wall of the sewage tank.

[0028] In some embodiments, the sewage tank cover assembly further includes: a garbage baffle connected to the partition and disposed in the first 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.

[0029] In some embodiments, the trash barrier is attached to at least a portion of the perimeter of the divider.

[0030] In some embodiments, the trash barrier is attached to a rear side of the divider.

[0031] 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 on the partition.

[0032] In some embodiments, the sewage tank cover assembly further includes: a flow deflector, which is arranged above the mounting hole. When the sewage tank cover assembly is assembled in the sewage tank, the flow deflector gap is arranged above the suction pipe.

[0033] In a second aspect of the present disclosure, a sewage tank cover assembly is provided for installation on a sewage tank of a cleaning device, the sewage tank cover assembly comprising: a cover body provided with an air inlet; and a partition connected to the bottom of the cover body, the partition being provided with a first water leakage portion; when the sewage tank cover assembly is assembled in the sewage tank, the partition divides the sewage tank into a first cavity located above the partition and a second cavity located below the partition, the first cavity and the second cavity being connected via the first water leakage portion.

[0034] The sewage tank cover assembly provided by the present disclosure has a partition connected to the bottom of the cover. When the sewage tank cover assembly is assembled in the sewage tank, the partition divides the sewage tank into a first cavity located above the partition and a second cavity located below the partition. After the sewage and solid waste are drawn into the first cavity, the sewage flows through the first leaking portion into the second cavity, thereby achieving solid-liquid separation. In addition, because the portions of the cover located on both sides of the air inlet abut against the inner wall of the sewage tank, the first cavity can be roughly divided into two parts. The splash generated by the water in the part facing away from the air inlet is blocked by the portions of the cover located on both sides of the air inlet, thereby to a certain extent preventing the risk of splash generated by the collision of the water in the sewage tank with the inner wall of the sewage tank being drawn into the draft member, thereby allowing the draft member to operate normally.

[0035] In some embodiments, the partition is arranged in an installation hole for the suction pipe to pass through; wherein, when the sewage tank is used, the sewage in the sewage tank is collected into the first cavity through the suction pipe, and the water in the sewage collected in the first cavity is drained into the second cavity through the first leaking part, so that the solid waste in the sewage is stored in the first cavity.

[0036] In some embodiments, at least a portion of the periphery of the partition elastically abuts against the inner wall of the sewage tank.

[0037] In some embodiments, the sewage tank cover assembly further includes: a garbage baffle connected to the partition and disposed in the first 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.

[0038] In some embodiments, the trash barrier is attached to at least a portion of the perimeter of the divider.

[0039] In some embodiments, the trash barrier is attached to a rear side of the divider.

[0040] 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 on the partition.

[0041] In some embodiments, the sewage tank cover assembly further includes: a flow deflector, which is arranged above the mounting hole. When the sewage tank cover assembly is assembled in the sewage tank, the flow deflector gap is arranged above the suction pipe.

[0042] In some embodiments, the air inlet is arranged on the side wall of the cover body; two water retaining members are also connected to the cover body, and the two water retaining members are arranged on both sides of the air inlet; wherein, when the sewage tank cover assembly is assembled in the sewage tank, the two water retaining members abut against the inner wall of the sewage tank.

[0043] 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.

[0044] In some embodiments, at least parts of the two water retaining members elastically abut against the inner wall of the sewage tank.

[0045] 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.

[0046] In some embodiments, at least a portion of the bottom of the air outlet cavity is provided with a slope, the side of the slope facing the air inlet is lower than the side of the slope away from the air inlet, and the slope is configured as the water retaining portion.

[0047] In some embodiments, the sewage tank cover assembly further includes: two first electrodes, respectively connected to the cover body, the two first electrodes respectively having a first triggering part, and the two first triggering parts are configured to generate a trigger signal when 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.

[0048] In some embodiments, when the sewage tank is tilted toward the back of the sewage tank, the two first triggering parts are activated by the water in the sewage tank.

[0049] 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.

[0050] In some embodiments, the sewage tank cover assembly further includes: an isolating member connected to the cover body; wherein the isolating member is arranged between the two first triggering parts; or / and, the isolating member is arranged on the outside of at least one of the first triggering parts, and a water inlet hole is provided on the isolating member.

[0051] In some embodiments, the sewage 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 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.

[0052] 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.

[0053] In some embodiments, the second electrode is further provided with a third triggering portion, and the third triggering portion is provided between the cover body and the partition; wherein: when the sewage tank is at a second target water level, the water in the sewage tank conducts the third triggering portion and the first triggering portion 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.

[0054] In some embodiments, two second electrodes are provided, and the two second electrodes are oppositely arranged on both sides of the third electrode in the width direction.

[0055] In some embodiments, the second electrode includes: a first connecting sleeve, a top end of which is connected to the cover body, and a distance is provided between the bottom end of the first connecting sleeve and the separator; a second connecting sleeve, a top end of which is connected to the cover body, and the bottom end of the second connecting sleeve passes through the separator; a first pole, which is arranged in the first connecting sleeve, and the bottom end of the first pole extends out of the bottom of the first connecting sleeve, and the portion of the first pole extending out of the bottom of the first connecting sleeve is configured as the third triggering portion; a second pole, which is arranged in the second connecting sleeve, and the bottom end of the second pole extends out of the bottom of the second connecting sleeve, and the portion of the second pole extending out of the bottom of the second connecting sleeve is configured as the second triggering portion.

[0056] 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.

[0057] In some embodiments, portions of the cover located on both sides of the air inlet abut against the inner wall of the sewage tank.

[0058] A third aspect of the present disclosure provides a sewage tank, comprising: a tank body provided with an inlet and an outlet; a sewage tank cover assembly according to the first or second aspect of the present disclosure, wherein the cover body of the sewage tank cover assembly is detachably disposed in the inlet and the outlet.

[0059] The sewage tank provided by the present disclosure can improve the phenomenon that the water in the sewage tank enters the air-inducing member through the air outlet portion, and can to a certain extent avoid the risk of splashes generated by the collision between the water in the sewage tank and the inner wall of the sewage tank being sucked into the air-inducing member, so that the air-inducing member can operate normally, and has good practicality.

[0060] In a fourth aspect of the present disclosure, a cleaning device is provided, comprising the sewage tank according to the third aspect of the present disclosure.

[0061] The cleaning equipment with the above-mentioned sewage tank can improve the phenomenon that the water in the sewage tank enters the air-inducing part through the air outlet, and can avoid, to a certain extent, the risk of splashes generated by the collision between the water in the sewage tank and the inner wall of the sewage tank being sucked into the air-inducing part, so that the air-inducing part can operate normally, and has good practicality.

[0062] In a fifth aspect of the present disclosure, a cleaning system is provided, comprising the cleaning device according to the fourth aspect of the present disclosure and a base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0064] FIG1 shows a schematic structural diagram of a sewage tank in one or more embodiments of the present disclosure;

[0065] FIG2 is a schematic structural diagram showing the sewage tank cover assembly in FIG1 from a first perspective;

[0066] FIG3 shows a schematic structural diagram of the separator in FIG2 ;

[0067] FIG4 shows a schematic top view of FIG3 ;

[0068] FIG5 shows a schematic structural diagram of FIG3 from another perspective;

[0069] FIG6 is a schematic structural diagram showing a water retaining portion including multiple inclined surfaces in one or more embodiments of the present disclosure;

[0070] FIG7 is a schematic structural diagram showing a water retaining portion including a plurality of steps in one or more embodiments of the present disclosure;

[0071] FIG8 is a schematic structural diagram showing the sewage tank cover assembly in FIG2 from a second perspective;

[0072] FIG9 shows a schematic structural diagram of the sewage tank cover assembly in FIG2 from a third perspective

[0073] FIG10 shows a logic control schematic diagram of a cleaning device having the sewage tank shown in FIG1 ;

[0074] FIG11 shows a schematic diagram of water level detection of the sewage tank shown in FIG1 in a target posture;

[0075] FIG12 shows a schematic structural diagram of the first electrode in FIG9 ;

[0076] FIG13 is a schematic diagram showing water level detection of the sewage tank shown in FIG1 in a vertical position;

[0077] FIG14 shows a schematic diagram of water level detection of the sewage tank shown in FIG1 in an inclined posture;

[0078] FIG. 15 shows a schematic structural diagram of the second electrode in FIG. 8 and FIG. 9 .

[0079] Description of reference numerals:

[0080] Sewage tank cover assembly-a;

[0081] Cover-1, air outlet cavity-101, air inlet-102, water retaining part-103

[0082] Separator 2, mounting hole 201, first water leakage part 202, first sealing part 203, third water leakage part 204;

[0083] Garbage baffle-3, second water leakage part-301, avoidance part-302;

[0084] Guide piece-4, baffle plate-401;

[0085] Bracket-5;

[0086] Water retaining member-7, second sealing member-701;

[0087] First electrode 8, first trigger unit 801, first pole piece 802, second pole piece 803, third pole piece 804;

[0088] Isolation piece-9, water inlet-901;

[0089] Second electrode 10, second trigger unit 1001, third trigger unit 1002, housing 1003, first pole 1004, second pole 1005, first connecting sleeve 1006, second connecting sleeve 1007, fourth pole piece 1008, fifth pole piece 1009;

[0090] Third electrode-11, fourth triggering unit-1101;

[0091] Waterproof parts-12;

[0092] Support-13, tank-1301;

[0093] Sewage tank-b, box body-b1, inlet and outlet-b2;

[0094] controller-c;

[0095] Draft piece-d;

[0096] Pumping pipe-e. DETAILED DESCRIPTION

[0097] In order to enable those skilled in the art to more clearly understand the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. 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 creative efforts shall fall within the scope of protection of the present disclosure.

[0098] With economic development and social progress, 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, taking the cleaning equipment as an example, the technical solution of the present disclosure is further described.

[0099] 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 solid-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.

[0100] 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.

[0101] Based on the above technical problems, the present disclosure provides a sewage tank cover assembly, a sewage tank and a cleaning device, which aims to at least to some extent solve the technical problem that when the cleaning equipment is running, the water in the sewage tank may collide with the inner wall of the sewage tank to produce splashes, and the splashes may be sucked into the draft member, affecting the normal operation of the draft member.

[0102] In a first aspect of the present disclosure, the present disclosure provides a sewage tank cover assembly for installation on a sewage tank of a cleaning device.

[0103] 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 sewage tank cover assembly in FIG1 from a first perspective. In conjunction with FIG1 and FIG2 , the sewage tank cover assembly a includes a cover body 1 and a partition 2. FIG3 is a schematic structural diagram of the partition in FIG2 . In conjunction with FIG1-3 , the cover body 1 is provided with an air inlet 102, and the partition 2 is connected to the bottom of the cover body 1. The partition 2 is provided with a first water leakage portion 202. When the sewage tank 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. The first cavity and the second cavity are connected through the first water leakage portion 202. In some embodiments, the portions of the cover body 1 located on both sides of the air inlet 102 abut against the inner wall of the sewage tank b.

[0104] The sewage tank cover assembly a provided by the present disclosure has a partition 2 connected to the bottom of the cover body 1. When the sewage tank 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 sucked into the sewage tank b 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 addition, because the portions of the cover body 1 located on both sides of the air inlet 102 abut against the inner wall of the sewage tank b, the first cavity can be roughly divided 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 portions of the cover body 1 located on both sides of the air inlet 102, thereby avoiding, to a certain extent, the risk of splashes generated by the collision of the water in the sewage tank b with the inner wall of the sewage tank b being sucked into the draft member d, so that the draft member d can operate normally, which has excellent practicality.

[0105] 3 , the partition 2 is provided below the cover 1 . The partition 2 may be in the shape of a plate. The partition 2 is provided in the 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. 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 .

[0106] 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.

[0107] 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, with a water outlet provided at the top of the suction pipe e. When the sewage tank b is in use, the sewage within 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, thereby storing solid waste in the sewage in the first cavity. The sewage is separated into solids and liquids by the separator 2. In other embodiments, a water outlet can be provided on the circumferential surface of the suction pipe e above the separator 2, and the sewage within the sewage tank b can also be collected into the first cavity. This is not a limitation here.

[0108] In conjunction with Figures 2-4 , at least a portion of the perimeter 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 perimeter of the divider 2, excluding the opening, so that the suction pipe e and the opening can be fitted with a slight clearance. Of course, the first sealing member 203 can also be provided between the wall of the suction pipe e and the opening, which will not be described in detail here. In other embodiments, the perimeter of the divider 2 can be elastic, for example, by injection molding a sheet of elastic material around the perimeter of the divider 2. This allows the perimeter of the divider 2 to be appropriately compressed when the sewage tank cover assembly a is assembled on the sewage tank b, thereby improving the sealing effect between the divider 2 and the inner wall of the sewage tank b.

[0109] Figure 5 shows a schematic structural diagram of Figure 3 from another perspective. In conjunction with Figures 2-5 , the sewage tank cover assembly a may further include a trash baffle 3 connected to the divider 2. The trash baffle 3 is disposed within the first cavity, specifically, attached to the top of the divider 2. The trash baffle 3 is provided with a second leaking portion 301, and the first leaking portion 202 is disposed on one side of the trash baffle 3. When the sewage tank cover assembly a is removed from the sewage tank b, the trash baffle 3 can concentrate the waste in the sewage tank b in the area enclosed by the divider 2 and the trash baffle 3, preventing it from falling directly onto the ground, thus preventing secondary contamination and facilitating waste removal.

[0110] 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 tank cover assembly a from the sewage tank b, the sewage tank b will be oriented toward the user, i.e., the sewage tank b is tilted rearward. With the garbage baffle 3 attached to the rear side of the divider 2, when the sewage tank cover assembly a is removed, if sewage is present in the first chamber, 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.

[0111] 3 and 5 , in some embodiments, the second water leakage portion 301 may include second water leakage holes 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 prevent the sewage tank cover assembly a from leaking out of the sewage tank b and causing secondary pollution after being disassembled.

[0112] 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 facilitate solid-liquid separation between the first and second cavities of the partition 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 partition 2 to form a diversion channel. A third water leakage portion 204 is provided on the partition 2, at least partially within the projection of the relief portion 302 onto the partition 2. 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. When the sewage tank cover assembly a 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 tank cover assembly a 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.

[0113] In other embodiments, the garbage baffle 3 can also be mounted around the top of the partition 2. When the sewage tank cover assembly a is removed, the garbage is retained on the partition 2 between the garbage baffles 3. However, this assembly method requires the garbage to be cleaned by inverting the sewage tank cover assembly a or manually. The above-mentioned solution in which the garbage baffle 3 is connected to a portion of the periphery of the partition 2 simplifies garbage cleaning and is the preferred solution.

[0114] With reference to Figure 2 , in some embodiments, the sewage tank cover assembly a further includes a flow guide 4 positioned above the mounting hole 201. When the sewage tank cover assembly a is assembled within the sewage tank b, the flow guide 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 flow guide 4, and then collected within the first chamber.

[0115] 2 , in a specific implementation, the guide member 4 may be a U-shaped structure with its opening facing downward, and the side walls of the guide member 4 may be connected to the partition 2 via brackets 5. In some embodiments, the guide member 4 may be a guide cover.

[0116] 2 , in some embodiments, a baffle plate 401 may be provided on the rear side of the guide member, so that the guide groove forms a cover structure with a bottom opening and a front opening.

[0117] In conjunction with Figure 2, in some embodiments, the cover body 1 can be integrally formed on the top of the guide member 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 guide member 4. Two water retaining members 7 are also connected to the cover body 1. The two water retaining members 7 are provided on both sides of the air inlet 102. When the sewage tank 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 splash 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, thereby avoiding, to a certain extent, the risk of splashing 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 draft member d, so that the draft member d can operate normally.

[0118] 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 cover bracket 5 from being sucked into the air outlet duct, thereby allowing the air induction member d to operate normally.

[0119] 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 sewage 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.

[0120] In conjunction with Figure 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 the 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 the 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.

[0121] In some embodiments, at least a portion of the bottom of the air outlet cavity 101 is provided with an inclined surface, wherein the side of the inclined surface facing the air inlet 102 is 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 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 inlet member d, thereby protecting the air inlet 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.

[0122] 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 or horizontal position, the water retaining portion 103 prevents water from entering the air outlet cavity 101 through the air inlet 102, thereby preventing water from further 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.

[0123] 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.

[0124] Based on the above technical issues, the present disclosure further improves the sewage tank cover assembly a. Figure 8 shows a schematic structural diagram of the sewage tank cover assembly in Figure 2 from a second perspective, and Figure 9 shows a schematic structural diagram of the sewage tank cover assembly in Figure 2 from a third perspective. In conjunction with Figures 8 and 9, the sewage tank cover assembly a further comprises two first electrodes 8, each of which is connected to the cover body 1. Each first electrode 8 has a first triggering portion 801. The two first triggering portions 801 are configured to generate a trigger signal when energized by the water in the sewage tank b, causing the cleaning device to adjust the operating parameters of the air induction member d according to the corresponding trigger signal.

[0125] 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 sewage tank cover assembly a provided by the present disclosure, when water in sewage tank b conducts through the two first triggering units 801, generates 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 signals for adjusting the operating parameters of the draft member d are generated. The draft member d returns to its normal set power value, allowing the device to operate normally.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] In some embodiments, the inclination angle of the sewage tank b can be greater 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 to enable the cleaning equipment (such as a mop, a floor scrubber, etc.) to have good cleaning efficiency.

[0130] 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.

[0131] 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.

[0132] 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 first 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.

[0133] Referring to Figure 9 , the sewage tank cover assembly (a) may further include a spacer 9 connected to the cover body 1. In some embodiments, a spacer 9 is disposed on the outside of at least one first triggering portion 801. Preferably, two spacers 9 are provided, one on each first triggering portion 801. Each spacer 9 is provided with a water inlet hole 901. The spacer 9 is an insulator. The presence of the spacer 9 prevents the formation of a water film between the two first triggering portions 801, which could cause them to connect. This prevents the sewage tank (b) from being in a non-target 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, thereby generating 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 cover 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.

[0134] 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 provided on the bottom of the cover body 1 by integral molding, clipping or bonding, which will not be described in detail here.

[0135] In conjunction with Figures 8, 9, and 10, in some embodiments, the sewage 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 reaches 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°.

[0136] 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.

[0137] 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.

[0138] 8 and 9 , in some embodiments, two second electrodes 10 are provided, with the two second electrodes 10 being oppositely positioned on either side of the width direction of the third electrode 11. When the cleaning device is twisted leftward or forward, the second trigger portion 1001 and the third trigger portion 1002 communicate with the corresponding trigger portion through the water body, enabling water level detection in the twisted state, which has excellent practicality, as shown in FIG13 .

[0139] 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.

[0140] 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 pole 1004 is connected to the cover 1. 004 is arranged in the first connecting sleeve 1006, the bottom end of the first pole 1004 extends out of the bottom of the first connecting sleeve 1006, and the part of the first pole 1004 extending out of the bottom of the first connecting sleeve 1006 is configured as the third triggering part 1002; the second pole 1005 is arranged in the second connecting sleeve 1007, the bottom end of the second pole 1005 extends out of the bottom of the second connecting sleeve 1007, and the part of the second pole 1005 extending out of the bottom of the second connecting sleeve 1007 is configured as the second triggering part 1001.

[0141] 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 third contact piece disposed 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.

[0142] 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.

[0143] 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 waterproof 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 waterproof member through 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.

[0144] 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.

[0145] In conjunction with Figures 8 and 9 , in some embodiments, the sewage tank 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 baffle plate 401 and its bottom end connected to the separator 2. The support member 13 may be provided with a groove 1301, and the third electrode 11 may be disposed in the groove 1301 of the support member 13. The third electrode 11 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 out of the separator 2. The portion of the third electrode 11 extending out of the bottom end of the support member 13 may be configured as a fourth triggering unit 1101.

[0146] 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.

[0147] It should be noted that the non-triggering portion of each electrode can be covered with an electrode housing. This housing can be made of hydrophobic and oleophobic Teflon or PP, and its smooth surface effectively prevents the adhesion of sewage within the sewage tank B. Furthermore, because the electrodes used for water level detection are cylindrical, water films between the electrodes can be prevented from causing conduction and leading to false water level alarms, thus ensuring excellent practicality.

[0148] In a second aspect of the present disclosure, a sewage tank b is provided. Referring to FIG1 , the sewage tank b comprises a tank body b1 and the sewage tank cover assembly a. The tank body b1 is provided with an inlet and outlet b2, and the cover body 1 of the sewage tank cover assembly a is detachably mounted within the inlet and outlet b2 of the tank body b1.

[0149] The sewage tank b provided by the present disclosure can not only reduce the risk of splashes generated by the collision of water in the sewage tank b with the inner wall of the sewage tank b being sucked into the draft member d, thereby allowing the draft member d to operate normally, but 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.

[0150] In a third aspect of the present disclosure, a cleaning device is provided, which includes the above-mentioned sewage tank b.

[0151] The cleaning equipment provided by the present disclosure can not only reduce the risk of water in the sewage tank b colliding with the inner wall of the sewage tank b to generate splashes and be sucked into the air-inducing member d, so that the air-inducing member d can operate normally, but also can detect the water level of the sewage tank b in different postures and prevent the water in the sewage tank b from entering the air-inducing member d, and has good practicality.

[0152] 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.

[0153] The present disclosure also provides a cleaning system, which includes the cleaning device and a base station according to any one of the above embodiments.

[0154] In the present disclosure, unless otherwise expressly specified and 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 vertical height 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 vertical height than the second feature.

[0155] 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 to the present application.

[0156] In this disclosure, unless otherwise expressly specified or limited, the terms "connect," "fix," etc. should be understood broadly. 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. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0157] 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.

[0158] 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 variations may be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the claims and their equivalents.

Claims

1. A sewage tank cover assembly for being installed on the sewage tank of a cleaning device, characterized in that, The sewage tank cover assembly includes: A cover body, which is provided with an air outlet cavity. An air inlet is provided on the side of the air outlet cavity, and a water blocking part is provided at the bottom of the air outlet cavity to block sewage in the sewage tank from entering the air outlet cavity.

2. The sewage tank cover assembly according to claim 1, wherein, At least part of the bottom of the air outlet cavity is provided with an inclined surface, and the side of the inclined surface facing the air inlet is lower than the side of the inclined surface away from the air inlet. The inclined surface is configured as the water blocking part.

3. The sewage tank cover assembly according to claim 1, characterized in that, At least part of the bottom of the air outlet cavity is provided with a step, and the step is configured as the water blocking part.

4. The sewage tank cover assembly according to any one of claims 1-3, characterized in that, The parts of the cover body on both sides of the air inlet are in contact with the inner wall of the sewage tank.

5. The sewage tank cover assembly according to claim 4, characterized in that 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; wherein, when the sewage tank cover assembly is assembled in the sewage tank, the two water blocking members are in contact with the inner wall of the sewage tank.

6. The sewage tank cover assembly according to claim 5, characterized in that The air inlet is provided 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.

7. The sewage tank cover assembly according to claim 5, wherein, At least part of the two water blocking members is elastically in contact with the inner wall of the sewage tank.

8. The sewage tank cover assembly according to any one of claims 1-7, characterized in that, The sewage tank cover assembly further includes: Two first electrodes, which are respectively connected to the cover body. The two first electrodes respectively have first trigger parts, and the two first trigger parts are configured to generate trigger signals when 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 signals.

9. The sewage tank cover assembly according to claim 8, characterized in that, 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.

10. The sewage tank cover assembly according to claim 8, 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.

11. The sewage tank cover assembly according to claim 10, wherein, The sewage tank cover assembly further includes: An isolating member, which is connected to the cover body; wherein, The isolating member is arranged between the two first trigger parts; or / and, the isolating member is arranged outside at least one of the first trigger parts, and the isolating member is provided with a water inlet hole.

12. The sewage tank cover assembly according to claim 8, characterized in that, The sewage tank cover assembly further includes: A separating member, which is connected below the cover body. The separating member is provided with a first water leakage part; when the sewage tank cover assembly is assembled in the sewage tank, the separating member divides the sewage tank into a first cavity above the separating member and a second cavity below the separating member, and the first cavity and the second cavity are communicated through the first water leakage part.

13. The sewage tank cover assembly according to claim 12, wherein, The sewage tank cover assembly further includes: A second electrode and a third electrode, which are connected to the cover body. The second electrode has a second trigger part, and the second trigger part is arranged below the separating member; the third electrode has a fourth trigger part, and the fourth trigger part is arranged below the separating member; wherein; When the sewage tank is at a first target water level, the water body in the sewage tank conducts the second trigger part and the fourth trigger part 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.

14. The sewage tank cover assembly according to claim 13, wherein, The fourth trigger part is arranged below the second trigger part; or The fourth trigger part and the second trigger part have the same or nearly the same height.

15. The sewage tank cover assembly according to claim 13 or 14, characterized in that, The second electrode is further provided with a third trigger part, and the third trigger part is arranged between the cover body and the partition member; wherein: Under the condition that the sewage tank is at the second target water level, the water body in the sewage tank conducts the third trigger part and the first trigger part to output the 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.

16. The sewage tank cover assembly according to claim 15, characterized in that, There are two second electrodes, and the two second electrodes are oppositely arranged on both sides in the width direction of the third electrode.

17. The sewage tank cover assembly according to any one of claims 12-16, characterized in that, The second electrode includes: A first connecting sleeve, the top end of which is connected to the cover body, and there is a distance between the bottom end of the first connecting sleeve and the partition member; A second connecting sleeve, the top end of which is connected to the cover body, and the bottom end of the second connecting sleeve passes through the partition member; A first pole column, which is arranged in the first connecting sleeve, and the bottom end of the first pole column extends out of the bottom of the first connecting sleeve, and the part where the first pole column extends out of the bottom of the first connecting sleeve is configured as the third trigger part; A second pole column, which is arranged in the second connecting sleeve, and the bottom end of the second pole column extends out of the bottom of the second connecting sleeve, and the part where the second pole column extends out of the bottom of the second connecting sleeve is configured as the second trigger part.

18. The sewage tank cover assembly according to any one of claims 17, characterized in that, A waterproof part is arranged at the top of the partition member, and at least part of the second connecting sleeve passes through the waterproof part.

19. The sewage tank cover assembly according to any one of claims 12, characterized in that, The partition member is arranged in the mounting hole for the water extraction pipe to pass through; wherein, Under the condition of using the sewage tank, 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 garbage in the sewage is stored in the first cavity.

20. The sewage tank cover assembly according to any one of claims 12-19, characterized in that, At least part of the periphery of the partition member is elastically abutted against the inner wall of the sewage tank.

21. The sewage tank cover assembly according to any one of claims 12-19, characterized in that, The sewage tank cover assembly further includes: A garbage baffle, which is connected to the partition member and arranged in the first cavity, and 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.

22. The sewage tank cover assembly according to claim 21, characterized in that, The garbage baffle is connected to at least part of the periphery of the partition member.

23. The sewage tank cover assembly according to claim 22, characterized in that, The garbage baffle is connected to the rear side of the partition member.

24. The sewage tank cover assembly according to claim 23, wherein, At least part of the rear side of the garbage baffle is provided with an avoidance part, the avoidance part extends towards the front side of the partition member, and 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 on the partition member.

25. The sewage tank cover assembly according to claim 19, characterized in that, The sewage tank cover assembly further includes: A diversion cover, which is arranged above the mounting hole. Under the condition that the sewage tank cover assembly is assembled in the sewage tank, the diversion cover is arranged with a gap above the water extraction pipe.

26. A sewage tank cover assembly for being installed on the sewage tank of a cleaning device, characterized in that, The sewage tank cover assembly includes: A cover body, which is provided with an air inlet; and A separator is connected below the cover body, and a first water leakage part is provided on the separator; under the condition that the sewage tank cover assembly is assembled in the sewage tank, the separator divides the sewage tank into a first cavity above the separator and a second cavity below the separator, and the first cavity and the second cavity are communicated through the first water leakage part.

27. The sewage tank cover assembly according to claim 26, wherein, The separator is arranged in an installation hole through which a water extraction pipe passes; wherein, Under the condition of using the sewage tank, 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.

28. The sewage tank cover assembly according to claim 26 or 27, characterized in that, At least part of the periphery of the separator elastically abuts against the inner wall of the sewage tank.

29. The sewage tank cover assembly according to claim 26 or 27, characterized in that, The sewage tank cover assembly further includes: A garbage baffle is connected to the separator and is arranged in the first cavity. A second water leakage part is provided on the garbage baffle, and the first water leakage part is arranged on one side of the garbage baffle.

30. The sewage tank cover assembly according to claim 29, wherein, The garbage baffle is connected to at least part of the periphery of the separator.

31. The sewage tank cover assembly according to claim 30, characterized in that, The garbage baffle is connected to the rear side of the separator.

32. The sewage tank cover assembly according to claim 31, characterized in that, At least part of the rear side of the garbage baffle is provided with an avoidance part, the avoidance part extends towards the front side of the separator, a third water leakage part is provided on the separator, and at least part of the third water leakage part is arranged within the projection of the avoidance part on the separator.

33. The sewage tank cover assembly according to claim 27, characterized in that, The sewage tank cover assembly further includes: A flow guide cover is arranged above the installation hole. Under the condition that the sewage tank cover assembly is assembled in the sewage tank, the flow guide cover is arranged at a gap above the water extraction pipe.

34. The sewage tank cover assembly according to any one of claims 26-33, characterized in that, The air inlet is arranged on the side wall of the cover body; Two water blocking parts are further connected to the cover body, and the two water blocking parts are arranged on both sides of the air inlet; wherein, Under the condition that the sewage tank cover assembly is assembled in the sewage tank, the two water blocking parts abut against the inner wall of the sewage tank.

35. The sewage tank cover assembly according to claim 34, wherein The air inlet is arranged on the front side of the cover body, and the two water blocking parts are arranged on both sides in the width direction of the cover body.

36. The sewage tank cover assembly according to claim 35, wherein, At least part of the two water blocking parts elastically abuts against the inner wall of the sewage tank.

37. The sewage tank cover assembly according to claim 35, characterized in that, 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.

38. The sewage tank cover assembly according to claim 37, 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.

39. The sewage tank cover assembly according to any one of claims 26-38, characterized in that, The sewage tank cover assembly further includes: Two first electrodes are respectively connected to the cover body, and the two first electrodes respectively have first trigger parts. The two first trigger parts are configured to generate trigger signals when being conducted by the water body in the sewage tank, so that the cleaning device adjusts the operation parameters of the air guiding part according to the corresponding trigger signals.

40. The sewage tank cover assembly according to claim 39, wherein, Under the condition that 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.

41. The sewage tank cover assembly according to claim 39, characterized in that, The two first electrodes are connected to the cover body in parallel, and at least a part of the first electrode is disposed below the cover body to be configured as the first trigger portion.

42. The sewage tank cover assembly according to claim 41, characterized in that, The sewage tank cover assembly further includes: An isolating member connected to the cover body; wherein, The isolating member is disposed between the two first trigger portions; or / and, an isolating member is disposed outside at least one of the first trigger portions, and a water inlet hole is provided on the isolating member.

43. The sewage tank cover assembly according to claim 39, characterized in that, The sewage tank cover assembly further includes: A second electrode and a third electrode, which are connected to the cover body. The second electrode has a second trigger portion, and the second trigger portion is disposed below the partition member; the third electrode has a fourth trigger portion, and the fourth trigger portion is disposed below the partition member; 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 torsional posture.

44. The sewage tank cover assembly according to claim 43, characterized in that, The fourth trigger portion is disposed below the second trigger portion; or The heights of the fourth trigger portion and the second trigger portion are the same or approximately the same.

45. The sewage tank cover assembly according to claim 43 or 44, characterized in that, The second electrode is further provided with a third trigger portion, and the third trigger portion is disposed between the cover body and the partition member; 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.

46. The sewage tank cover assembly according to claim 45, wherein There are two second electrodes, and the two second electrodes are oppositely disposed on both sides in the width direction of the third electrode.

47. The sewage tank cover assembly according to claim 46, characterized in that, The second electrode includes: A first connecting sleeve, the top end of which is connected to the cover body, and there is a distance between the bottom end of the first connecting sleeve and the partition member; A second connecting sleeve, the top end of which is connected to the cover body, and the bottom end of the second connecting sleeve passes through the partition member; A first pole column disposed in the first connecting sleeve, and the bottom end of the first pole column 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 of the second pole column 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.

48. The sewage tank cover assembly according to claim 47, wherein A waterproof member is provided at the top of the partition member, and at least a part of the second connecting sleeve passes through the waterproof member.

49. The sewage tank cover assembly according to claim 26, characterized in that, The portions of the cover body on both sides of the air inlet are in contact with the inner wall of the sewage tank.

50. A sewage tank, characterized in that, The sewage tank includes: A box body provided with an inlet and an outlet; The sewage tank cover assembly according to any one of claims 1-25 or 26-49, and the cover body of the sewage tank cover assembly is detachably disposed in the inlet and outlet.

51. A cleaning device, characterized in that, The cleaning device includes the sewage tank according to claim 50.

52. A cleaning system, characterized in that, The cleaning system includes the cleaning device according to claim 51 and a base station.

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