Cleaning Equipment and Systems

Abstract

The present disclosure provides a cleaning device and cleaning system including a cleaning sheet body and a device body pivotally connected to the cleaning sheet body, the device body further including a wastewater tank detachably attached to one side of the device body, a power source attached to the other side of the device body, a first air duct that bendably connects the wastewater tank and an air inlet of the power source, and a second air duct that connects an air outlet of the power source and an air outlet of the cleaning device, wherein when the power source is activated, a working air flow passes through the cleaning sheet body, the wastewater tank and the first air duct to enter the power source and is discharged through the air outlet of the power source, the second air duct and the air outlet of the cleaning device.

Description

[Technical Field]

[0001] (Related Applications) This disclosure claims priority to Chinese Patent Application Nos. 202210901598.6, 202210899744.6 and 202221975551.6, filed on July 28, 2022, the entire contents of the disclosures of which are incorporated herein by reference as part of this disclosure.

[0002] FIELD OF THE DISCLOSURE The present disclosure relates to the technical field of automatic cleaning, and in particular to cleaning devices and systems. [Background technology]

[0003] 2. Description of the Related Art With the continuous development of technology, cleaning devices such as floor scrubbers have been widely adopted in homes, and floor scrubbers can save time and labor compared to traditional manual cleaning.

[0004] A floor scrubber typically includes a machine body and a cleaning sheet body. The machine body houses a recovered water tank (such as a dirty water tank), a cleaning liquid tank (such as a clean water tank), and a main exhaust fan for suction. The cleaning sheet body includes a cleaning roller for dragging and wiping, and typically has two cleaning rollers to ensure cleaning efficiency. Clean cleaning liquid, such as water, is sprayed onto the threaded cleaning roller through a built-in water pipe, and the cleaning roller rotates at high speed to drag and scrub the floor surface. With the widespread application of floor scrubbers, there is a general demand for a rational layout of each component structure within the floor scrubber and a more compact overall structure. Summary of the Invention

[0005] The present disclosure provides a cleaning device and cleaning system.

[0006] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: a cleaning sheet body configured to be adapted for movement over a surface to be cleaned; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body, the device body comprising: a wastewater tank detachably attached to one side of the device body; a power source attached to the other side of the device body, the direction from one side of the device body to the other side being substantially perpendicular to the first direction; a first air duct communicating the wastewater tank with an air inlet of the power source; a second air duct communicating the air outlet of the power source with the air outlet of the cleaning device; In response to activation of the power source, the cleaning device is configured to sequentially discharge a working air flow through the cleaning sheet body, the wastewater tank, the first air duct, the power source, the second air duct, and the air outlet of the cleaning device.

[0007] Some embodiments of the present disclosure provide a cleaning device, the cleaning device including a device housing; The device housing is a cleaning sheet body configured to be adapted for movement over a surface to be cleaned; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body; an apparatus air duct configured to form a flow path for the working air flow; the device air duct is composed of at least a dirt suction port, a wastewater tank, and a power source, and when the power source is activated, the working air flow flows through the dirt suction port, the wastewater tank, and the power source in sequence; The front and rear air ducts of the equipment air duct are respectively a front air duct and a rear air duct, and the working air flows in opposite directions in the front air duct and the rear air duct.

[0008] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: a cleaning sheet body adapted to move on a surface to be cleaned and configured to have a dirt suction port; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body; The device itself is a power source configured to generate a moving working air stream when activated; a wastewater tank configured to contain wastewater collected from the surface to be cleaned; The working air flow travels through the dirt suction port, the wastewater tank, and the power source in sequence, and the working air flow contains the wastewater, which is collected and stored in the wastewater tank; The power source has an air inlet and an air outlet, the working air flow enters the power source through the air inlet, and the air inlet extends along a first direction away from the cleaning sheet body.

[0009] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any one of the preceding embodiments, wherein the pillar is configured to support the cleaning device.

[0010] Some embodiments of the present disclosure provide a cleaning device, the cleaning device including a device body extending longitudinally in a first direction; The device itself is a clean water tank housing configured to hold a clean water tank; and the device body includes a dirty water tank housing configured to house a dirty water tank; This clean water tank housing is a first chassis configured to hold the clean water tank and having at least one first water leak; This wastewater tank housing is a side wall of the wastewater tank housing portion extending along the first direction; Here, the first water leak port is fluidly connected to the side wall of the wastewater tank housing portion and configured to discharge liquid in the first chassis through the first water leak port and the side wall of the wastewater tank housing portion.

[0011] Some embodiments of the present disclosure provide a cleaning device, the cleaning device including a device body extending longitudinally in a first direction; The device itself is a clean water tank housing configured to house a clean water tank; a wastewater tank housing configured to house a wastewater tank; a dirt suction port configured to suck dirty water from the surface to be cleaned into an inlet of the cleaning device; a dirt suction channel configured to be in fluid communication with the dirt suction port and the wastewater tank; Here, both the clean water tank housing and the dirty water tank housing are fluidly connected to the dirt suction channel, so that liquid remaining in the clean water tank housing and the dirty water tank housing is sucked into the dirt suction channel and collected in the dirty water tank.

[0012] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any one of the preceding embodiments, wherein the pillar is configured to support the cleaning device.

[0013] Some embodiments of the present disclosure provide a cleaning device, the cleaning device including a device housing and a liquid supply system; The device housing is a device body extending longitudinally in a first direction; a cleaning sheet body pivotally connected to the device body; the liquid supply system is configured to supply cleaning liquid to the cleaning roller brush and / or the surface to be cleaned; The liquid supply system a liquid reservoir configured to store a cleaning liquid; a liquid supply line; This liquid supply line is a fluid dispensing connector configured to dispense the cleaning fluid; This liquid dispensing connector is a liquid inlet configured to be the entrance of the cleaning liquid; The liquid supply passage has at least two liquid outlets, and the closer one of the at least two liquid outlets to the liquid inlet, the larger the opening diameter.

[0014] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any of the above embodiments, wherein the post is configured to support the cleaning device.

[0015] In order to more clearly describe the embodiments of the present disclosure or the technical solutions in the prior art, the following will briefly describe the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and those skilled in the art can obtain other drawings based on these drawings without any creative work. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a structural schematic diagram of a cleaning device provided by some embodiments of the present disclosure; [Figure 2] 1 is a partial cross-sectional view of a cleaning device provided by some embodiments of the present disclosure. [Figure 3] 1 is a structural schematic diagram of a wastewater tank provided by some embodiments of the present disclosure; [Figure 4] 1 is a structural schematic diagram of a wastewater tank body provided by some embodiments of the present disclosure; [Figure 5] 1 is a structural schematic diagram of a cover bracket provided by some embodiments of the present disclosure; [Figure 6] 1 is a partial structural schematic diagram of a cover bracket provided by some embodiments of the present disclosure; [Figure 7] 1 is a schematic diagram of the direction of the working airflow when the air duct and exhaust fan of the cleaning device provided by some embodiments of the present disclosure are operating; [Figure 8] 1 is a structural schematic diagram of a cleaning device body provided by some embodiments of the present disclosure; [Figure 9]1 is a structural schematic diagram of a clean water tank holding chassis provided by some embodiments of the present disclosure; [Figure 10] 1 is a top view of a water collection structure provided by some embodiments of the present disclosure. [Figure 11] 1 is a side view of a water collection structure provided by some embodiments of the present disclosure. [Figure 12] 1 is a top view schematic diagram of a wastewater tank holding chassis structure provided by some embodiments of the present disclosure; [Figure 13] 1 is a bottom view schematic diagram of a wastewater tank holding chassis structure provided by some embodiments of the present disclosure; [Figure 14] 1 is a cross-sectional view of an exploded view of a handle assembly provided by some embodiments of the present disclosure; [Figure 15] 1 is a schematic diagram of the structure of a cleaning sheet body provided by some embodiments of the present disclosure; [Figure 16] 1 is a schematic diagram of the internal structure of a cleaning sheet body provided by some embodiments of the present disclosure; [Figure 17] 1 is a structural schematic diagram of a liquid dispensing connector provided by some embodiments of the present disclosure. [Figure 18] 1 is a structural schematic diagram of a roller brush receiving chamber provided by some embodiments of the present disclosure; [Figure 19] 1 is a schematic view of a roller brush receiving chamber from another angle according to some embodiments of the present disclosure; [Figure 20] 1 is a schematic diagram of the direction of dirt suction channels provided by some embodiments of the present disclosure; [Figure 21] 1 is a structural schematic diagram of a cleaning system provided by some embodiments of the present disclosure. [Figure 22] 1 is a schematic exploded view of a column provided by some embodiments of the present disclosure; [Explanation of symbols]

[0017] 100 Cleaning System 10 columns 20 Cleaning equipment 21 Cleaning sheet body 211 Cleaning roller brush 22 Device body 221 Cleaning device air outlet 23 Handle assembly 241 First Air Duct 242 Second Air Duct 25 Sewage Tank 251 Sewage tank body 2511 Sewage Pipe 2512 Handle 252 Cover bracket 2521 First support bracket 2522 Second Support Bracket 2523 Third support bracket 2525 Filter mesh bag 2526 recess 2527 Second Through Hole 2528 Filter window 255 2nd end 2551 Filtration Assembly 2552 Sewage tank body assembly 26 Clean Water Tank 273 Power source (exhaust fan) 2731 Power source air inlet 2732 Power source air outlet DETAILED DESCRIPTION OF THE INVENTION

[0018] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments of the present disclosure, other embodiments obtained by those skilled in the art without any creative work are all included in the protection scope of the present disclosure.

[0019] It should be noted that the terms "comprises," "comprises," or any other variation thereof are intended to cover a non-exclusive inclusion, and a product or device comprising a set of elements includes not only those elements but also other elements not expressly listed or inherent in such product or device. Unless further qualified, the fact that a definition is made with the phrase "comprising one or more" does not exclude the presence of other elements of the same type in the product or device of said elements.

[0020] A cleaning device, such as a floor scrubber, typically includes a housing divided into a device main body and a cleaning sheet main body. The device main body includes a recovery water tank (e.g., a dirty water tank), a cleaning liquid tank (e.g., a clean water tank), and a main exhaust fan for suction. The cleaning sheet main body includes a cleaning roller brush for dragging and wiping. The cleaning roller brush may have one, two, or more cleaning roller brushes, and typically two cleaning roller brushes are provided to ensure cleaning efficiency. Clean cleaning liquid, such as clean water, is sprayed onto the threaded cleaning roller brush through a built-in water pipe. The cleaning roller brush rotates at high speed to mop and clean the floor surface. At the same time, the main exhaust fan creates negative pressure in the device air duct of the cleaning device, sucking in dirty water from the cleaning device's suction port and pumping it to the dirty water tank. The dirty water return path also serves as part of the device air duct of the cleaning device.

[0021] After use, the cleaning device is normally returned to the column where the cleaning roller brush is washed or dried, for example by air drying or heat drying.

[0022] Selected embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0023] In related art, the exhaust fan assembly of a cleaning device has a certain risk of suction force generated by the rotating impeller, and is usually installed on the top of the device. Therefore, when a user is performing maintenance on the cleaning device, for example when attaching or detaching a wastewater tank, the user is likely to accidentally touch the exhaust fan with their hand, causing an accident. Furthermore, installing a protective net around the periphery of the exhaust fan affects the airflow of the exhaust fan.

[0024] In contrast, an embodiment of the present disclosure provides a cleaning device in which the exhaust fan and the wastewater tank are arranged facing each other in a substantially horizontal direction, so that users will not accidentally touch the exhaust fan when performing maintenance on the cleaning device, improving safety and operability. In the embodiment of the present disclosure, the first air duct is bent to make the structural layout of the cleaning device more compact, saving space while lowering the center of gravity of the entire cleaning device. The bent air duct also effectively reduces noise generated when the exhaust fan is operating, improving the user experience.

[0025] Specifically, the cleaning device provided by the embodiments of the present disclosure, for example, is shown in FIG. 1, which is a structural schematic diagram of a cleaning device provided by some embodiments of the present disclosure. As shown in FIG. 1, a cleaning device 20, such as a floor scrubber, includes a device housing divided into a cleaning sheet body 21, a device body 22, and a handle assembly 23. Here, the device body 22 is disposed above the cleaning sheet body 21 and is movably connected, for example, pivotally connected, to the cleaning sheet body 21. The handle assembly 23 is connected to the end of the device body 22 remote from the cleaning sheet body 21 so that it can be operated and gripped by a user. A user grips the handle assembly 23 to operate the cleaning sheet body 21 to perform a cleaning task on a surface to be cleaned, such as a floor.

[0026] For ease of explanation, the following definitions are used: A floor cleaning machine can be calibrated by defining three mutually perpendicular axes: a horizontal axis Y, a front-to-rear axis X, and a vertical axis Z. The direction indicated by the arrow along the front-to-rear axis X is labeled "forward," and the direction opposite to the arrow along the front-to-rear axis X is labeled "rear." The horizontal axis Y is substantially the width direction of the cleaning sheet main body 21, and the direction indicated by the arrow along the horizontal axis Y is labeled "leftward," and the direction opposite to the arrow along the horizontal axis Y is labeled "rightward." The vertical axis Z is the direction extending upward along the bottom surface of the self-cleaning sheet main body 21. As shown in FIG. 1, the direction extending from the handle assembly 23 to the device body 22 or the direction extending from the device body 22 to the handle assembly 23 is defined as the first direction, and the direction perpendicular to the first direction is defined as the second direction. Typically, when the cleaning device is in the stored state, as shown in FIG. 1, the first direction is approximately vertical and forms a small angle with the vertical axis Z, and is approximately parallel, for example, forming an angle of less than 15 degrees. The first direction is, for example, vertically upward or vertically downward. The second direction is approximately horizontal and is approximately parallel to the front-to-rear axis X or the horizontal axis Y, and is, for example, the left-right horizontal direction or the front-to-rear horizontal direction.

[0027] In the embodiments of the present disclosure, substantially perpendicular means, for example, that the angle between the two directions is 75 degrees or more and 105 degrees or less, for example, 90 degrees. Extending along substantially one direction or substantially parallel means that the two directions are substantially parallel, for example, at an angle of less than 30 degrees (preferably less than 15 degrees).

[0028] In some embodiments, the device body 22 refers to the portion of the cleaning device between the cleaning sheet body 21 and the handle assembly 23, the device body 22 generally extending in a vertical direction, i.e., a first direction, the handle assembly 23 connected to an upper end of the device body 22, the cleaning sheet body 21 connected to a lower end of the device body 22, the device body 22 pivotally connected to the cleaning sheet body 21, and the device body 22 rotatable relative to the cleaning sheet body 21, allowing the operating angle to be changed and the cleaning posture to be flexibly adjusted. The cleaning sheet body 21 includes a cleaning roller brush 211 at its bottom. Specifically, the number of cleaning roller brushes 211 may be one or more, for example, two, and the cleaning roller brushes 211 may rotate at high speed to mop and clean the floor surface.

[0029] In some embodiments, the cleaning apparatus 20 further includes a power source, which generates a moving airflow in the cleaning apparatus, and this airflow is carried to the cleaning apparatus 20 by the dirty water (which may include solid debris) on the surface to be cleaned and then collected. Therefore, this airflow is defined as a recovered airflow, also referred to as a working airflow. The recovered airflow has an airflow path within the cleaning apparatus 20 formed by an apparatus air duct, and the entire airflow path sequentially passes through at least the dirt suction inlet, dirt collection unit (e.g., dirty water tank) and power source of the cleaning apparatus 20. That is, the apparatus air duct includes at least the dirt suction inlet, dirt collection unit (e.g., dirty water tank) and power source. Here, the dirt suction inlet is the inlet through which dirty water enters the cleaning apparatus 20 and is also the air inlet of the apparatus air duct. Since the recovered airflow flowing out of the dirt collection unit does not contain dirty water, the airflow path from the dirt suction inlet to the dirt collection unit is defined as a recovery path.

[0030] Specifically, the power source may be a suction source such as an exhaust fan, which is installed in the device body 22 and circulates gas through the device air duct to form a recovery air flow and provide suction power for wastewater recovery, and the wastewater recovery pipe is connected to the dirt suction port and the wastewater tank 25 to form part of the device air duct, and under the action of the suction force generated by the exhaust fan, the wastewater is sucked into the wastewater tank 25 through the wastewater recovery pipe.

[0031] In some embodiments, the power source has an air inlet and an air outlet, and generates power to cause a recovered air flow to enter through the air inlet and be exhausted through the air outlet. When the power source is a suction source, taking an exhaust fan as an example, the exhaust fan refers to a related assembly consisting of at least an impeller for moving air, i.e., it may be an exhaust fan product (which typically includes an impeller, a motor, corresponding drive control circuitry, and a housing for accommodating the device), or it may be the impeller and its drive motor, or it may be just the specific impeller.

[0032] 1 and 2, as shown in FIG. 1, the cleaning device 20, for example, a floor scrubber, includes a clean water tank 26, a dirty water tank 25, an exhaust fan 273, and an apparatus air duct, wherein the exhaust fan 273 draws in gas to form a recovery air flow in the apparatus air duct, generating negative pressure, and sucks dirty water (including dirt, if any, on the surface to be cleaned, hereinafter referred to as dirty water) from the surface to be cleaned into the dirty water tank.

[0033] The clean water tank 26 and the waste water tank 25 are both provided in, for example, the apparatus main body 22. In some embodiments, both are detachably connected to the apparatus main body 22. In some embodiments, the clean water tank 26 and the waste water tank 25 are arranged along the first direction. For example, the clean water tank 26 is provided above the waste water tank 25. The clean water tank 26 is used to store a cleaning liquid, such as cleaning water, and can provide the cleaning liquid to the cleaning roller brush 211 and / or the surface to be cleaned via the clean water pipe to wet the surface of the cleaning roller brush 211, allowing the cleaning roller brush 211 to wet clean the surface to be cleaned. The waste water tank 25 is configured to store recovered waste water. When the cleaning roller brush 211 performs wet cleaning, waste water is generated on the surface to be cleaned, and the waste water (which may include dirt on the surface to be cleaned) is collected in the waste water tank 25 via the waste water collection pipe.

[0034] The exhaust fan 273 is provided in the device body 22 and is configured to circulate the recovered air flow through the device air duct and provide power for the wastewater recovery, and in some embodiments, the wastewater tank 25 is located on one side of the device body 22 and the exhaust fan 273 is located on the other side of the device body 22, and in some embodiments, the exhaust fan 273 and the wastewater tank 25 are arranged approximately along the second direction. By providing the exhaust fan 273 and the wastewater tank 25 opposite each other in a substantially horizontal direction, when a user attaches or detaches the wastewater tank 25, the air inlet of the exhaust fan 273 is not directly connected to the air outlet of the wastewater tank 25, so the exhaust fan 273 does not affect the user's operation, and there is no need to provide a protective net around the exhaust fan 273 to protect the user but affect the air volume.

[0035] In some embodiments, the apparatus air duct further includes a first air duct and a second air duct, wherein the first air duct connects the wastewater tank with the air inlet of the exhaust fan, and the second air duct connects the air outlet of the exhaust fan with the air outlet of the cleaning apparatus. The length and shape of the first air duct and the second air duct are not limited and may be dedicated structural members or structural assemblies designed to perform the air duct function, or may be air ducts formed by spaces between components of the cleaning apparatus.

[0036] 2, the device air duct further includes a first air duct 241 and a second air duct 242, wherein the first air duct 241 connects the dirty water tank 25 and the air inlet 2731 of the exhaust fan 273, and the second air duct 242 extends substantially along the first direction of the device body 22 and connects the air outlet 2732 of the exhaust fan 273 and the air outlet 221 of the cleaning device. Here, the first air duct 241 is a curved air duct and connects the dirty water tank 25 and the air inlet 2731 of the exhaust fan 273 in a curveable manner. Specifically, the air inlet of the first air duct 241 is connected to the wastewater tank 25, the first air duct 241 extends at its air inlet substantially along the second direction, and after extending a certain distance along the second direction, the first air duct 241 curves downward and extends substantially along the first direction, and the first air duct 241 extends along the first direction and is connected to the air inlet 2731 of the exhaust fan 273. In some embodiments, the first air duct 241 is curved at the curved portion from the first direction to the second direction, i.e., there is a smooth transition at the curved portion of the first air duct 241, which reduces the resistance of the recovered air flow in the first air duct 241 without creating turbulence at the curved portion. The first air duct 241 is designed as a curved air duct, which allows the arrangement of the wastewater tank and the exhaust fan, making the structural layout of the cleaning device more compact and saving space. At the same time, it lowers the center of gravity of the entire cleaning device, making it easier to grip and operate. The curved air duct can also reduce the noise generated by the recovered air flow to a certain extent, improving the user experience.

[0037] In some embodiments, the second air duct 242 communicates with the air outlet 2732 of the exhaust fan 273, and the recovered air flow from the air outlet 2732 of the exhaust fan 273 is discharged from the cleaning apparatus through the second air duct 242. Alternatively, the second air duct may be formed by a gap between each component of the cleaning apparatus, and the recovered air flow discharged from the air outlet 2732 of the exhaust fan 273 is discharged to the outside of the cleaning apparatus through the second air duct formed by the gap between each component of the cleaning apparatus. As an example, the second air duct 242 is provided between the exhaust fan 273 and the wastewater tank 25, and there is a narrow gap extending along the first direction between the exhaust fan 273 and the wastewater tank 25, and the second air duct 242 extends from top to bottom along the first direction to near the cleaning sheet main body 21, and the recovered air flow is discharged from the outlet 222 at the bottom or lower part of the apparatus main body 22.

[0038] 2, the second air duct 242 is a curved air duct for connecting the air outlet 2732 of the exhaust fan 273 and the air outlet 221 of the cleaning device 20. The second air duct 242 is provided between the exhaust fan 273 and the wastewater tank 25, and there is a narrow gap extending along the first direction between the exhaust fan 273 and the wastewater tank 25. The second air duct 242 extends along the first direction to near the cleaning sheet body 21 and then bends backward by a predetermined distance before connecting with the air outlet 221 of the cleaning device. The cleaning device's air outlet 221 is located between the wastewater tank 25 and the exhaust fan 273. In some embodiments, the cleaning device's air outlet 221 has a plurality of through-holes extending substantially along the first direction and arranged on the side wall of the device body 22, forming, for example, a net structure, through which the recovered air is discharged to the outside of the side wall of the cleaning device. The through-holes of the net structure disperse the discharged air, preventing the humid recovered air discharged downward from wetting the surface to be cleaned and preventing dust from entering the cleaning device body. The second air duct 242 is designed to be inverted and curved near the cleaning sheet body 21, making the structural layout of the cleaning device more compact. The curved air duct can also reduce noise generated by the recovered air to a certain extent, improving the user experience.

[0039] In some embodiments, at least one of the device air ducts, for example the first air duct and / or the second air duct, is provided with a noise reducing member, for example at the air duct inlet, the air duct outlet, or the air duct sidewall.

[0040] Referring to FIG. 7 , the flow path of the recovered air in the cleaning device 20, particularly the first air duct 241 and the second air duct 242, when the exhaust fan 273 is activated, the recovered air sequentially passes through the cleaning sheet body 21, the wastewater tank 25, and the first air duct 241, enters the exhaust fan air inlet 2731, and is discharged through the exhaust fan air outlet 2732. The discharged recovered air is then discharged to the outside of the cleaning device 20 through the second air duct 242 and the air outlet 221 of the cleaning device 20. Due to the layout structure of the exhaust fan 273 and the wastewater tank 25, after the recovered air flow is discharged from the air outlet of the wastewater tank 25, the overall flow direction is changed, for example, changed to the reverse direction. The overall flow direction here refers to the direction in which the recovered air flow is discharged from the start of the device air duct to the end of the device air duct. For example, the device channel through which the recovered air flow passes in the first half of the recovery path of the cleaning device 20 is called the front channel, and the device channel through which the recovered air flow passes in the second half of the recovery path is called the rear channel. The start of the front channel is located at the cleaning station. The front channel starts at the dirt suction port of the main body 21 and ends at the air outlet of the dirty water tank 25, and the direction from the dirt suction port to the air outlet of the dirty water tank 25 is approximately a first direction away from the surface to be cleaned; the rear channel starts at the air inlet of the first air duct 241 and ends at the air outlet 221 of the cleaning device 20, and the direction from the air inlet to the air outlet 221 of the first air duct 241 is approximately a first direction toward the surface to be cleaned; that is, the overall flow direction of the recovered air flow in the front channel is opposite to the overall flow direction of the recovered air flow in the rear channel.

[0041] In some embodiments, under the suction force generated by the exhaust fan 273, the recovered airflow enters the wastewater tank body 251 through the wastewater conduit 2511 and then enters the first air duct 241 through the air outlet at the top of the wastewater tank 251 (corresponding to the filtration assembly 2551 on the cover bracket 252). In some embodiments, the first support bracket 2521 is provided with a filtration window 2528, which may be provided with a mesh screen or other filtering material, so that the recovered airflow passes through the filtration window 2528 after entering the wastewater tank body 251 and then reaches the air outlet at the top of the wastewater tank. Filtration by the filtration window 2528 can reduce impurities carried by the recovered airflow and reduce damage to the exhaust fan 273. In some embodiments, a filtration assembly 2551 is provided at the end of the cover bracket 252 near the wastewater tank body, so that the recovered airflow passes through the filtration assembly 2551 before entering the first air duct 241. The filtration of the filtration assembly 2551 reduces impurities carried by the recovered airflow and can reduce damage to the exhaust fan 273 .

[0042] In the cleaning device provided by the embodiments of the present disclosure, the first air duct is designed to be curved, making the structural layout of the cleaning device more compact and space-saving, while at the same time lowering the center of gravity of the cleaning device, making it easier for the user to grip and operate. By changing the flow direction of the working air flow several times inside the cleaning device, the noise generated during the air flow can be reduced to a certain extent, improving the user experience.

[0043] 3 to 5, as shown in Fig. 3, the wastewater tank 25 includes a wastewater tank body 251 and a cover bracket 252, wherein the wastewater tank body 251 is configured to store collected wastewater, and the wastewater tank body 251 is fitted into at least the lower half of the cover bracket 252 and is detachably connected to the cover bracket 252. As shown in Fig. 4, the wastewater tank body 251 includes a wastewater tank body opening 2513 and a wastewater tank body bottom surface 2514.

[0044] 4, the wastewater tank body 251 includes a wastewater pipe 2511 that extends along the bottom surface 2514 of the wastewater tank body toward the wastewater tank body opening 2513, and is arranged so that, under the action of the exhaust fan 273, wastewater in the cleaning roller brush 211 enters the wastewater tank body 251 through the wastewater pipe 2511. The wastewater tank body 251 further includes a protruding handle 2512 for facilitating operation when attaching or detaching the wastewater tank 251.

[0045] In some embodiments, as shown in FIG. 5 , the cover bracket 252 includes a first support bracket 2521, a second support bracket 2522, and a third support bracket 2523, wherein the first support bracket 2521 extends along the longitudinal direction (first direction) of the wastewater tank body 251, the second support bracket 2522 extends at a predetermined angle to the first support bracket 2521, for example, extends along a substantially vertical direction (second direction), and the third support bracket 2523 extends at a predetermined angle to the first support bracket 2521, for example, extends along a substantially vertical direction (second direction), and the third support bracket 2523 and the second support bracket 2522 may have a symmetrical structure, for example, may be symmetrical on the axis of the first support bracket 2521 in the first direction. In some embodiments, the first support bracket 2521, the second support bracket 2522, and the third support bracket 2523 are a one-piece structure, and the transitions between the first support bracket 2521 and the second support bracket 2522 and between the first support bracket 2521 and the third support bracket 2523 may be made by smooth curves or corners. The first support bracket 2521, the second support bracket 2522, and the third support bracket 2523 form a generally U-shaped structure to improve the stability and strength of the cover bracket 252.

[0046] The cover bracket 252 further includes a first float and a second float, wherein the first float is provided on one side of the cover bracket 252, and the second float and the first float are provided symmetrically on the other side of the cover bracket 252; specifically, the first float is provided on the second support bracket 2522, and the second float is provided on the third support bracket 2523, and both the first float and the second float can rotate between a first position and a second position.

[0047] 6 mainly illustrates the relationship between the second float 2541 and its associated assemblies; as can be understood, the relationship between the first float and its associated assemblies is similar, and therefore a detailed description is omitted. Specifically, both the first float and the second float 2541 can move in response to changes in water level. Taking the second float 2541 as an example, when the water level is lower than the second float 2541, the second float 2541 has no buoyancy and is therefore at its lowest position, i.e., position 1 in FIG. 5. When the water level rises to contact the second float 2541, the second float 2541 receives buoyancy and moves in response to changes in water level. As the water level rises, it can move to its highest position, i.e., position 2 in FIG. 5, due to structural constraints. The above operating principles of the first float and the second float 2541 are the same; specifically, the two floats move along a pivot axis. In some embodiments, the first float and the second float 2541 are small floats, which occupy a small space and are low cost, and increase the amount of wastewater that can be stored in the wastewater tank. Because the volume of the small float is small, its immersion in wastewater is very small, and it has little impact on the volume of wastewater that can be stored in the wastewater tank 25. Because of its symmetrical structure, the difference in water volume when triggered from the front to the back and from the left to the right is small. In addition, the small float can increase the rotation sensitivity of the float and improve detection sensitivity.

[0048] In some embodiments, the first float and the second float 2541 operate in cooperation with a first sensing assembly fixed to the device body 22 to monitor whether the wastewater tank 25 is assembled in place. Specifically, the first float includes a second sensing assembly, and the second float includes a third sensing assembly. In one embodiment, the first sensing assembly may be composed of one, two, or more components. When composed of two or more components, the first sensing assembly may be provided at different positions on the device body and cooperate with the second and third sensing assemblies to generate sensing signals. When the wastewater tank 25 is assembled to the device body 22, when the first float and the second float 2541 are located in the first position, the second sensing assembly and / or the third sensing assembly each cooperate with the first sensing assembly to generate sensing signals, and the sensing signals provide information that the wastewater tank 25 is assembled in place. Conversely, if the wastewater tank 25 is not assembled or is assembled incorrectly to the device body 22, the second sensing assembly and / or the third sensing assembly will not cooperate with the first sensing assembly to generate a sensing signal and will issue warning information to suggest to the user to reassemble the wastewater tank 25.

[0049] In some embodiments, when the first float and the second float are in the first position, a first sensing assembly is correspondingly provided on the device body, and the first float and the second float are configured to operate in cooperation with the first sensing assembly provided on the device body 22 to monitor the water level in the wastewater tank body 251. In one embodiment, the first sensing assembly and the first float and / or the second float may generate sensing signals of different intensities corresponding to different distances within a certain distance range. For example, the intensity of the sensing signal decreases as the distance increases. For example, the first sensing assembly may generate sensing signals ranging from strong to weak within a distance range of 1 cm to 3 cm. When the distance is less than 1 cm, the intensity of the sensing signal is maintained, and when the distance is greater than 3 cm, the sensing signal is attenuated to 0. Therefore, different distance ranges can be defined as threshold ranges. The distance ranges may be specific distance values, for example, 1 cm and 3 cm. The different distance ranges may be continuous or discontinuous. A specific example of a continuous distance range is shown below. For example, within the range of 1 cm to 3 cm, two distance ranges, 1 cm to 2 cm and 2 cm to 3 cm, are divided at a boundary of 2 cm, to respectively monitor whether the sewage tank is assembled in place and whether it is full. When the wastewater tank 25 is assembled in the device body 22, the first and second floats 2541 are in a first position, and the distance between the second and / or third sensing assembly and the first sensing assembly is a first distance, for example, 2.5 cm, which satisfies the detection threshold range of 2 cm to 3 cm. Based on the intensity of the sensing signal generated by the first sensing assembly, information is generated that the wastewater tank 25 is assembled in a predetermined position. When the wastewater tank 25 is full, the first and second floats 2541 are in a second position, and the distance between the second and / or third sensing assembly and the first sensing assembly is a second distance, for example, 1.5 cm, which satisfies the detection threshold range of 1 cm to 2 cm. Based on the intensity of the sensing signal generated by the first sensing assembly, information is generated that the wastewater tank 25 is full. The same applies to non-continuous distance ranges.

[0050] In some embodiments, the first sensing assembly includes two sets of sensing elements, and when the first float and the second float are in a first position, the first set of sensing elements are correspondingly provided on the device body, and when the first float and the second float are in a second position, the second set of sensing elements are correspondingly provided on the device body, and the two sets of sensing elements operate in cooperation with the first float and / or the second float, respectively, to complete a water-filled monitoring task. Specifically, the first float includes a second sensing assembly, and the second float includes a third sensing assembly. When the wastewater tank 25 is assembled in the device body 22, the first float and the second float 2541 are in a first position, and the second sensing assembly and / or the third sensing assembly each cooperate with a first set of sensing elements to generate a first sensing signal. The first sensing signal provides information that the wastewater tank 25 is assembled in a predetermined position. When the wastewater in the wastewater tank 25 reaches a predetermined position, for example, the predetermined position of the full water position where the first float and / or the second float have reached the second position, the second sensing assembly and / or the third sensing assembly each cooperate with a second set of sensing elements to generate a second sensing signal. The second sensing signal provides information that the wastewater tank 25 is full, and prompts the user to continue the process.

[0051] In some embodiments, if one of the first float and the second float provides the second sensing signal, it can be determined that the wastewater tank 25 is full. For example, if one float is blocked and cannot rise due to clogging or other malfunction, the other float can rise normally, enabling the full water alarm task and avoiding the risk of wastewater overflow.

[0052] In some embodiments, the first float includes a second sensing assembly, and the second float includes a third sensing assembly, and when the wastewater in the wastewater tank has not reached a predetermined position, the second sensing assembly and / or the third sensing assembly are in a first position, and in response to the wastewater tank being assembled to the device body, at least one of the second sensing assembly and the third sensing assembly cooperate with the first sensing assembly to generate a sensing signal, and based on the first sensing signal, generate information that the wastewater tank is assembled in a predetermined position, and when the wastewater in the wastewater tank reaches the predetermined position, at least one of the second sensing assembly and / or the third sensing assembly reaches a second position due to the buoyancy of the wastewater, the distance between the second sensing assembly and / or the third sensing assembly and the first sensing assembly increases, and the sensing signal disappears, and the disappearance of the sensing signal provides information that the wastewater tank is full. This setting method realizes the full water and assembled in place detection function with only one detection position (corresponding to the first position), and does not require additional improvements to the judgment circuit of the Hall detection assembly, which simplifies the detection logic, improves detection efficiency, and reduces the cost of the detection circuit.

[0053] In some embodiments, a comparison of two symmetric floats, the first float and the second float, can be used to detect an assembly error in the wastewater tank. Specifically, if only one float generates a sensing signal, or if the difference between the sensing signals generated by the first float and the second float exceeds a preset threshold, it can be determined that an assembly error has occurred in the wastewater tank, and the wastewater tank cannot be assembled in place, prompting the user to continue the process.

[0054] In some embodiments, the detection of blockage of one float can be realized by comparing two symmetric floats, the first float and the second float. Specifically, if the difference between the sensing signals generated at the two locations of the first float and the second float exceeds a preset threshold, it can be determined that the float on one side is blocked, and the user is prompted to continue processing.

[0055] In some embodiments, by way of example and not limitation, the first sensing assembly may include a Hall element such as a Hall plate or a Hall sensing assembly, and the second and third sensing assemblies may include, but are not limited to, magnets.

[0056] In some embodiments, the cover bracket 252 further includes a first float cover body 2533 and a second float cover body 2543. Here, the first float cover body 2533 is rotatably mounted on one side of the cover bracket 252, and the second float cover body 2543 is rotatably mounted on the other side of the cover bracket 252. When the first float cover body 2533 and the second float cover body 2543 are engaged with the cover bracket 252, the first float cover body 2533 covers the first float, and the second float cover body 2543 covers the second float 2541. By providing the float cover bodies on the outside of the float, it is possible to protect the float and prevent solids in the wastewater from clogging the float or affecting the float's response to water level changes. 6, at least one locking member 2534, such as a snap, is provided on the edge of each of the first float cover body 2533 and the second float cover body 2543, and at least one locking member 2524, such as an engagement groove, is provided at a position corresponding to the cover bracket 252. Through cooperation of the locking member 2534 and the locking member 2524, the engagement between the first float cover body 2533 and the second float cover body 2543 and the cover bracket 252 is achieved, thereby enhancing the protection of the first float and the second float.

[0057] In some embodiments, a plurality of first through holes 2544 are provided on the surface of each of the first float cover body 2533 and the second float cover body 2543. Wastewater in the wastewater tank 25 flows in or out through the first through holes 2544, allowing the first float and the second float to quickly respond to the water level of the wastewater.

[0058] In some embodiments, the second float 2541 includes a second axis of rotation 2542, and the second float 2541 is capable of rotating between a first position and a second position about the second axis of rotation 2542. Similarly, the first float includes a first axis of rotation, and the first float is capable of freely rotating between a first position and a second position about the first axis of rotation.

[0059] In some embodiments, the cover bracket 252 further includes a filter mesh bag 2525, which extends in substantially the same direction as the first support bracket 2521. In some embodiments, the filter mesh bag 2525 and the first support bracket 2521 are integrally molded. This integral molding increases the strength and durability of the entire cover bracket 252 structure, and the filter mesh bag 2525 and the first support bracket 2521 may be detachably connected, making them easy to clean and replaceable as consumables. The filter mesh bag 2525 may also be integrally molded with the first support bracket 2521, the second support bracket 2522, and the third support bracket 2523, further improving the strength and durability of the cover bracket 252.

[0060] The filter mesh bag 2525 is disposed at a first end of the cover bracket 252 facing the bottom of the wastewater tank body 251. The filter mesh bag 2525 extends substantially from the bottom of the cover bracket 252 toward the bottom of the wastewater tank body 251. When the wastewater tank 25 is in the assembled position, the filter mesh bag 2525 extends substantially along a first direction, and the direction of flow of wastewater when it enters the wastewater tank body 251 is substantially the same as the direction of flow of the wastewater. This reduces the resistance of the wastewater when it enters the wastewater tank body 251 and also reduces the likelihood of impurities in the wastewater being trapped by the filter mesh bag 2525. When removing the wastewater tank 25 to discard wastewater, the user can choose whether to use the filter mesh bag 2525 to filter the wastewater depending on the specific usage environment. Specifically, when using the filter mesh bag 2525 to filter wastewater, the user can hold the second end 255 of the cover bracket 252 so that the receiving surface of the filter mesh bag 2525 faces the direction of discarding the wastewater. For example, the filter mesh bag 2525 can filter wastewater within a predetermined angle range from the horizontal, for example, the extension surface of the filter mesh bag 2525 is within a predetermined angle range of 0 to 90 degrees from the horizontal, making it easy for users to perform filtering operations when wastewater needs to be filtered.

[0061] 5, the filtration mesh bag 2525 further includes a recess 2526, and the opening direction of the recess 2526 is opposite to the extending direction of the second support bracket 2522. In the assembled position, the recess 2526 of the filtration mesh bag 2525 faces the outside of the device body 22 for ease of use. Optionally, the filtration mesh bag 2525 is formed of a hard material, such as a hard plastic, a hard organic material, or a metal, to increase the rigidity of the filtration mesh bag 2525 during filtration.

[0062] In some embodiments, the filtering mesh bag 2525 further includes a plurality of second through-holes 2527. In some embodiments, the opening size of the second through-holes 2527 is larger than the opening size of the first through-holes 2544, and solids of different sizes in the wastewater can be filtered by selecting different opening sizes, with the second through-holes 2527 having a large opening size to allow the wastewater to pass through quickly, and the first through-holes 2544 having a small opening size to allow water to enter only the float cover body.

[0063] When the wastewater tank 25 is full, the user removes it from the cleaning device main body 22 and takes out the cover bracket 252 from the wastewater tank main body 251. If the user considers it necessary to filter the wastewater when disposing of it, the cover bracket 252 is positioned horizontally so that the filter mesh bag 2525 is located below the wastewater outlet of the wastewater tank main body 251. After the wastewater flows out of the wastewater tank main body 251, it passes through the recess 2526 of the filter mesh bag 2525 and is discharged through the second through hole 2527, thereby filtering most of the solids in the wastewater and preventing large solids from being directly dumped into the drainage location (e.g., sewer, toilet) and causing blockage of the drainage location.

[0064] The filtering mesh bag 2525 extends in the same direction as the entire cover bracket 252, and the recess 2526 is shallower and has a smoother recess shape, which makes it more convenient for users to discard filtered solid waste than a structure in which there is a certain angle between the gripping part and the filtering part, further improving the user experience, and also making it easier to clean in the subsequent cleaning process.

[0065] The filtering mesh bag extending vertically in the wastewater tank body reduces the space occupied in the wastewater tank body when assembled, makes it difficult for impurities to leak out, allows the filtering function to be selectively used when disposing of wastewater, is easy to operate and flexible, and improves the practicality of the filtering bracket.

[0066] In some embodiments, cover bracket 252 may further include a filtering window 2528, for example, the filtering window may be provided with a mesh screen or other filtering material. Filter window 2528 is provided in first support bracket 2521 and is configured to filter gas. As gas passes through first support bracket 2521 through filtering window 2528, particulate matter carried by the gas is blocked by filtering window 2528 as the gas flows, achieving coarse filtering of the gas. The filtering window 2528 is provided on the first support bracket 2521. When disposing of wastewater, the first support bracket 2521 needs to be removed from the wastewater tank body. At this time, the user can easily see the position of the filtering window 2528 provided on the first support bracket 2521, i.e., it is easy for the user to recognize, which has the effect of encouraging the user to clean dirt attached to the filtering window 2528 in a timely manner. Since the filtering window 2528 is located close to the filtering mesh bag 2525, the user can rinse the filtering window 2528 and the filtering mesh bag 2525 together during cleaning. Optionally, the filtering window 2528 may have a single structure, a two-valve structure, or another multi-valve structure, and is not particularly limited thereto. In some embodiments, the cleaning device 20 further includes a power source, which is arranged to generate airflows moving along the same direction in the cleaning device, and this airflow carries wastewater (including solid debris) from the surface to be cleaned to the cleaning device 20 for collection. Therefore, this airflow is defined as a collection airflow. The airflow path through which the recovered airflow flows in the cleaning device 20 is formed by the device air duct, and the entire airflow path passes at least sequentially through the dirt suction inlet, dirt collection unit (i.e., dirty water drum) and power source of the cleaning device 20, i.e., the device air duct includes at least the dirt suction inlet, dirt collection unit (i.e., dirty water drum) and power source, and since the recovered airflow flowing out of the dirt collection unit does not carry dirty water, the airflow path defined by the dirt suction inlet and dirt collection unit is defined as the recovery path.

[0067] The power source may specifically be a suction source, such as an exhaust fan, which is provided in the device body 22 and configured to allow gas to flow in the device air duct to form a recovery air flow and provide suction power for wastewater recovery, and the wastewater recovery pipe connects the dirt suction port and the wastewater tank 25 to form a part of the device air duct, and under the action of the suction force generated by the exhaust fan, wastewater is sucked into the wastewater tank 25 through the wastewater recovery pipe.

[0068] 5 , the cover bracket 252 further includes a second end 255 opposite the first end, the second end 255 being adjacent to the open side of the wastewater tank body 251, and the cover bracket 252 further includes a filter assembly 2551 disposed at the second end 255, the filter assembly 2551 being configured to allow the recovered air to flow through the wastewater pipe 2511, the filter window 2528, and the filter assembly 2551. The recovered air is first filtered a first time by the filter window 2528 and then filtered a second time by the filter assembly 2551 before entering the exhaust fan, thereby ensuring that the gas entering the exhaust fan is free of impurities and reducing damage to the exhaust fan. Optionally, the filtration assembly 2551 may be made of multi-layered filtration cotton or multi-layered gauze, and a mesh screen may be provided on either the filtration window 2528 or the filtration assembly 2551, or of course, to improve filtration performance, a mesh screen may be provided on both the filtration window 2528 and the filtration assembly 2551. In some embodiments, the cover bracket further includes a wastewater tank body assembly portion 2552 extending circumferentially and provided at the second end 255, and configured to be engaged with and assembled into the opening of the wastewater tank body 251.

[0069] In the related art, the clean water tank and / or waste water tank of the cleaning device are often not installed properly and the water level is too high, which causes the liquid in the clean water tank and / or waste water tank to leak, which not only results in secondary contamination of the floor surface being cleaned, but also may cause a safety hazard.

[0070] In this regard, this embodiment provides a cleaning device that is equipped with a water collection structure, and when liquid leaks from the clean water tank placed on the first chassis, the liquid can be guided to the dirt suction channel through the first chassis and its first water leakage outlet, or the leaked liquid in the dirty water tank can be guided to the dirt suction channel through the second chassis and its second water leakage outlet, thereby reducing the risk of the leaked liquid leaking outside the cleaning device and at the same time reducing safety hazards.

[0071] 8, this embodiment provides a cleaning device, and the same structure can be referred to the above embodiment, and the description is omitted here. The cleaning device includes a device body 22, the device body 22 extends vertically in a first direction, the device body 22 includes a clean water tank accommodating portion 224 and a dirty water tank accommodating portion 225, the clean water tank accommodating portion 224 is arranged to accommodate the clean water tank 26, the dirty water tank accommodating portion 225 is arranged to accommodate the dirty water tank 25, the clean water tank accommodating portion 224 includes a first chassis 2211 configured to mount the clean water tank 26, and the first chassis 2211 is , includes at least one first water leakage port 22111 and a first protruding edge 22112. As shown in FIG. 9, the first protruding edge 22112 is provided around the first chassis 2211. The first protruding edge 22112 is used to receive and fix the clean water tank 26, preventing the clean water tank 26 from shaking or shifting, and also preventing the liquid leaking from the clean water tank 26 from flowing out of the first chassis 2211. The first water leakage port 22111 has at least The number of the first water leakage ports may be one, for example, two, three, four or more, and if there is an even number, they may be symmetrically arranged on both sides of the first chassis 2211. The shape of the first water leakage port is not limited, and may be, for example, a round hole, a square hole or a rod-like shape. The wastewater tank accommodating portion 225 includes a side wall 2221 of the wastewater tank accommodating portion, and the side wall 2221 of the wastewater tank accommodating portion extends from the top end to the bottom end of the wastewater tank accommodating portion along the first direction, and the top end of the side wall 2221 of the wastewater tank accommodating portion is fluidly connected to the first water leakage port 22111. The first leakage port 22111 is connected to the sewage tank 25, and the liquid leaking from the clean water tank 26 flows out from the first leakage port 22111 and then flows downward along the side wall 2221 of the sewage tank accommodating section. As shown in Figure 11, folded edges 22212 are provided on two side edges of the side wall 2221 of the sewage tank accommodating section in the first direction toward the inner surface of the sewage tank 25, and the folded edges 22212 and the inner surface form a right angle or an obtuse angle, which can prevent the liquid from flowing outside the sewage tank accommodating section.

[0072] In some other embodiments, a liquid conduction groove 22211 is provided on the edge of the side wall 2221 of the wastewater tank accommodating portion, and the liquid conduction groove 22211 extends along a first direction toward the outside of the side wall 2221 of the wastewater tank accommodating portion toward the wastewater tank 25 or toward the inside away from the wastewater tank 25, and may be provided on the edge or in the middle of the side wall 2221 of the wastewater tank accommodating portion, or may be a structure integrally molded with the side wall 2221 of the wastewater tank accommodating portion, or may be a separately provided device. For example, as shown in FIG. 10, the liquid conduction groove 22211 may be provided on one or both sides of the edge of the side wall 2221 of the wastewater tank accommodating section, and the liquid conduction groove 22211 may be a vertically penetrating groove recessed inwardly provided on the side wall 2221 of the wastewater tank accommodating section, or may be a vertically penetrating tubular liquid conduction groove 22211 provided on the side wall 2221 of the wastewater tank accommodating section, wherein the first water leakage port 22111 is connected to the liquid conduction groove 22211, and the liquid leaking from the clean water tank 26 is configured to be discharged through the first water leakage port 22111 and the liquid conduction groove 22211.

[0073] In some embodiments, as can be understood with reference to Figures 11 and 10, the device body 22 may further include a water collecting structure 223, which connects the first chassis 2211 and the side wall 2221 of the wastewater tank accommodating section, so that liquid leaking from the clean water tank 26 is guided through the first water leakage port 22111, the water collecting structure 223 and the side wall 2221 of the wastewater tank accommodating section, and the water collecting structure 223, the first chassis 2211 and the side wall 2221 of the wastewater tank accommodating section may be an integral structure or may be detachably connected.

[0074] In some embodiments, the water collecting structure 223 includes a water collecting structure body 2231, a water collecting tank 2232, and an air duct opening 2234, the water collecting structure body 2231 has an inclined structure in an assembled state and is arranged at an angle in an assembled state to connect with the filtration assembly 2551 of the wastewater tank, and the air duct opening 2234 communicates with the exhaust fan 273 to engage with the air outlet of the wastewater tank 25 and allows the recovered air flow to pass through. A pair of water collecting tanks 2232 are arranged symmetrically on both sides of the water collecting structure body 2231, and liquid leaking from the clean water tank flows into the water collecting tank 2232 through the first water leakage opening 22111.

[0075] In some embodiments, the water collection tank 2232 has a substantially triangular cross section in the first direction to match the slope of the water collection structure main body 2231, and the top of the water collection tank 2232 is substantially horizontal to smoothly receive the clean water tank. The water collection tank 2232 has side walls, a sloped bottom 2233, and a water collection tank hole 22321, the water collection tank hole 22321 is located on the sloped bottom 2233, and optionally the water collection tank hole 22321 is located at the lowest position of the sloped bottom 2233 to facilitate liquid drainage, and the water collection tank hole 22321 is connected to the liquid conduction groove 22211 on the side wall 2221 of the wastewater tank receiving part, so that liquid flowing into the water collection tank 2232 flows into the liquid conduction groove 22211 through the sloped bottom 2233 and the water collection tank hole 22321.

[0076] In some embodiments, as shown in FIG. 12 , the wastewater tank accommodating portion 225 further includes a second chassis 2222, and the second chassis 2222 and the side wall 2221 of the wastewater tank accommodating portion may be integrally connected or detachably connected, and the second chassis 2222 is arranged to receive the wastewater tank 25, wherein the second chassis 2222 has at least one second water leakage port 22221 and a second protruding edge 2225, and the second protruding edge 2225 is used to receive and fix the wastewater tank 25, preventing the wastewater tank 25 from shaking or shifting, and at the same time preventing liquid leaking from the wastewater tank 25 from flowing out of the second chassis 2222, and the shape and number of the second water leakage port 22221 are not particularly limited, and the shape may be, for example, a round hole, a square hole, or a rod-shaped hole.

[0077] In some embodiments, as shown in FIG. 13 , the cleaning device 20 further includes a dirt suction channel 2223, the dirt suction channel 2223 penetrates the second chassis 2222 and communicates with the dirty water tank 25, the dirt suction channel 2223 is configured to fluidly communicate the dirt suction port and the dirty water tank 25, and the dirty water enters the dirt suction port and then enters the dirty water tank 25 through the dirt suction channel 2223, and the cleaning device 20 further includes a guiding channel 2224, the guiding channel 2224 is The liquid conduction groove 22211, the second water leakage port 22221 and the dirt suction channel 2223 are connected, and the flow guide channel 2224 allows the liquid flowing out from the liquid conduction groove 22211 and the liquid flowing out from the second water leakage port 22221 to flow into the dirt suction channel 2223 via the flow guide channel 2224, and guides the liquid leaking from the clean water tank and the liquid leaking from the wastewater tank to the dirt suction channel 2223, and then allows it to be sucked into the wastewater tank 25 via the dirt suction channel 2223.

[0078] In some embodiments, the liquid conducting groove 22211 can guide the liquid flowing from the first chassis 2211 to the second chassis 2222 or directly to the flow channel 2224, and the liquid in the second chassis 2222 flows out into the flow channel 2224 through the second water leak 22221.

[0079] In some embodiments, the flow guiding channel 2224 refers to all possible channel structures fluidly connected to the dirt suction channel 2223, and may be an independent structural element or assembly, or may be formed by spaces between each component. For example, the flow guiding channel 2224 may be a conduit having one end directly connected to the dirt suction channel 2223 and the other end directly connected to the second water leakage orifice 22221 and / or the liquid conducting groove 22211. The flow guiding channel 2224 may be realized as follows (not shown): the liquid flowing out from the second water leakage orifice 22221 and / or the liquid conducting groove 22211 is collected in a liquid collecting device, and a conduit is provided between the liquid collecting device and the dirt suction channel 2223 to fluidly connect them, and the liquid in the liquid collecting device is collected in the dirt suction channel 2223 by the negative pressure in the dirt suction channel 2223.

[0080] In some embodiments, as shown in FIG. 14, the clean water tank receiving portion 221 is provided with a handle removal structure, which is located on the inner wall of the clean water tank receiving portion 221 and can remove the cleaning device handle 23 when pressed. When the clean water tank 26 is assembled into the clean water tank receiving portion 221, the handle removal structure is blocked and covered to prevent the handle from falling off due to incorrect operation. Specifically, the handle detachment structure includes a pressing chamber 2213 integrally molded on the inner wall of the clean water tank accommodating portion 221. For example, the inner wall of the clean water tank accommodating portion 221 is recessed inward to form a groove to form the pressing chamber 2213. The handle detachment structure further includes a pressing part 2212 that is closely attached to the inner wall of the clean water tank accommodating portion 221 and substantially covers the pressing chamber 2213. The pressing part 2212 is made of a material having elasticity when pressed. The handle detachment structure further includes a push-up part 2214 connected to the push-up part 2212. The push-up part 2212 and the push-up part 2214 may be integrally molded or separately molded. When the push-up part 2212 is pressed, one end of the push-up part 2214 is pushed up against the locking protrusion 2215 of the cleaning device handle, thereby unlocking the cleaning device handle 23 from the device body 22 and allowing the user to remove it. Compared to the general method of providing an insertion hole in the main body and using a specially shaped tool (e.g., a pin) to trigger removal, this removal method allows removal by directly pressing, making the operation easier, and the pressing part 2212 is located at the rear side of the clean water tank, preventing accidental triggering during use. Optionally, a reset spring 2216 may be provided between the pushing part 2214 and the bottom of the pressing chamber 2213 for elastic resetting.

[0081] In related technology, when a cleaning device is operating, water from a clean water tank is sucked up by a water pump and then distributed to the brush head or the surface to be cleaned. Ideally, the water should be distributed evenly to the brush head or the surface to be cleaned. However, due to differences in water pressure, the current water circuit structure cannot distribute water evenly to the brush head or the surface to be cleaned. As a result, some brush heads or surfaces receive too much water, wasting water resources, and some brush heads or surfaces receive too little water, making it impossible to clean the floor surface reliably.

[0082] Some embodiments of the present disclosure provide a cleaning device, in which a liquid dispensing connector is disposed in the liquid supply duct structure of the cleaning sheet body, so that the liquid dispensing connector has multiple liquid outlets, and the diameter of the liquid outlets increases as they approach the liquid inlet, thereby making the water flowing out from the multiple liquid outlets as uniform as possible, and distributing the liquid uniformly to the brush head or the surface to be cleaned.

[0083] 15 , the cleaning device includes a device housing, which includes a cleaning sheet body 21 and a device body 22. The cleaning sheet body 21 is pivotally connected to the device body 22. The cleaning sheet body 21 is provided with a cleaning roller brush 211, which rotates to clean the floor. The cleaning roller brush is attached by rotational engagement. Specifically, an end cap is provided at the end of the cleaning roller brush. When the cleaning roller brush is fully inserted into the drive end, rotating the end cap in the engagement direction will engage the cleaning roller brush with the cleaning sheet body 21, and rotating the end cap in the opposite direction will disengage the cleaning roller brush from the cleaning sheet body 21. During the cleaning device's cleaning operation, if the rotation direction of the cleaning roller brush is opposite to the engagement direction of the end cap, the cleaning roller brush will disengage during cleaning, which could result in the cleaning roller brush falling off. Therefore, the engagement direction of the cleaning roller brush is set to the rotation direction during cleaning, to prevent the cleaning roller brush from disengaging and falling off during normal operation.

[0084] The cleaning apparatus further includes a liquid supply system, which includes a liquid storage device, a liquid supply line, a liquid supply power source, and a liquid distributor, wherein the liquid storage device is used to store cleaning liquid and may be one or more containers, a container having two or more chambers therein, or a combination of the above containers, the liquid supply power source is a device for providing power for the flow of cleaning liquid, such as a water pump, the liquid distributor is a device for distributing cleaning liquid to the cleaning roller brush and / or the surface to be cleaned, and the liquid supply line is a line for flowing cleaning liquid from the liquid storage device to the liquid distributor under the action of power provided by the liquid supply power source.

[0085] In some embodiments, the liquid storage device includes two or more containers or chambers, at least one of which is used to store clean water and the other of which is used to store a cleaning-enhancing solvent, such as a detergent. Specifically, as shown in Fig. 1, a clean water tank 26 is disposed in the device body 22 and configured to store clean water, and as shown in Fig. 16, a detergent box 214 is provided in the cleaning sheet body 21 and configured to store a detergent, and the clean water and detergent are mixed in a liquid supply line and distributed to the cleaning roller brush 211 and / or the surface to be cleaned via a liquid distributor. To ensure uniform water distribution, the structure of the liquid distributor needs to correspond to the cleaning roller brush 211, so the liquid distributor has four liquid inlets, and corresponding to the inlet structure of the liquid distributor, a liquid distribution connector 215 is provided in the liquid supply pipe in the cleaning sheet body 21, which is configured to distribute the cleaning liquid after mixing clean water and detergent, and the liquid distribution connector 215 has a liquid inlet 21511 for the mixed cleaning liquid to flow in, and at least two liquid outlets, and the diameters of the at least two liquid outlets are larger the closer they are to the liquid inlet.

[0086] 17 , the liquid distribution connector 215 includes a main fluid conduit 2151 having a first end serving as a liquid inlet 21511 through which the mixed cleaning liquid flows and a second end serving as a sealing structure 21512. The liquid distribution conduits 2152 are connected to the main fluid conduit 2151 at a substantially perpendicular angle, and each of the liquid distribution conduits 2152 has a liquid outlet. In some embodiments, the liquid distribution conduits 2152 have substantially the same outer diameter and different inner diameters. "Substantially the same" means, for example, that the difference between the two values ​​is 15% or less (e.g., the larger of the two values ​​is used as the reference value), e.g., 5%. In some embodiments, the liquid distribution conduits 2152 include a first liquid distribution conduit 21521, a second liquid distribution conduit 21522, a third liquid distribution conduit 21523, and a fourth liquid distribution conduit 21524, which are arranged sequentially along the main fluid conduit 2151 from the first end to the second end. The first liquid distribution pipe 21521 delivers liquid to the first roller brush via the second liquid pipe 2142, the second liquid distribution pipe 21522 delivers liquid to the second roller brush via the third liquid pipe 2143, the third liquid distribution pipe 21523 delivers liquid to the third roller brush via the fourth liquid pipe 2144, and the fourth liquid distribution pipe 21524 delivers liquid to the first roller brush via the fifth liquid pipe 2145. The inner diameters of the first liquid distribution pipe 21521, the second liquid distribution pipe 21522, the third liquid distribution pipe 21523 and the fourth liquid distribution pipe 21524 are arranged from coarse to narrow, and in some embodiments, the inner diameter of the first liquid distribution pipe 21521 is 1.35 to 1.45 mm, the inner diameter of the second liquid distribution pipe 21522 is 1.25 to 1.35 mm, the inner diameter of the third liquid distribution pipe 21523 is 1.15 to 1.25 mm, and the inner diameter of the fourth liquid distribution pipe 21524 is 1.05 to 1.15 mm.Because the second end of the main fluid pipe (2151) has a sealed structure, the oil pressure of the main fluid pipe (2151) changes from small to large in the direction from the first end to the second end, and when the inner diameters of the first liquid distribution pipe (21521), the second liquid distribution pipe (21522), the third liquid distribution pipe (21523) and the fourth liquid distribution pipe (21524) are set to be arranged from coarse to narrow, the amount of liquid outflowing from the first liquid distribution pipe (21521), the second liquid distribution pipe (21522), the third liquid distribution pipe (21523) and the fourth liquid distribution pipe (21524) becomes uniform, and the amount of liquid acquired by the first roller brush, the second roller brush and the third roller brush can be basically the same, making the floor cleaning process by the roller brushes more uniform and preventing dirt residue due to excessive liquid amount.

[0087] 18 , the cleaning sheet body 21 includes a first roller brush receiving portion 216 configured to assemble the first roller brush, a second roller brush receiving portion 217 configured to assemble the second roller brush, and a third roller brush receiving portion 218 configured to assemble the third roller brush, wherein the cleaning liquid is distributed to the first, second, and third roller brushes via liquid pipes from a liquid outlet of the liquid distribution connector 215. For example, the first liquid distribution pipe 21521 delivers liquid to the first roller brush via the second liquid pipe 2142, the second liquid distribution pipe 21522 delivers liquid to the second roller brush via the third liquid pipe 2143, the third liquid distribution pipe 21523 delivers liquid to the third roller brush via the fourth liquid pipe 2144, and the fourth liquid distribution pipe 21524 delivers liquid to the first roller brush via the fifth liquid pipe 2145. As an example, the first roller brush is provided independently along the width direction of the cleaning sheet main body 21, and the second and third roller brushes are provided adjacent to each other along the width direction of the cleaning sheet main body 21, i.e., the sum of the lengths of the second and third roller brushes is approximately equal to the length of the first roller brush. The first, second and third roller brushes rotate under the drive of a motor to clean the floor surface.

[0088] In some embodiments, as shown in FIGS. 18 and 19, the first roller brush receiving portion 216 includes a first scraper 2161 extending along the longitudinal direction of the first roller brush, and is approximately the same length as the first roller brush; that is, the first scraper 2161 extends from one end of the first roller brush to the other in a direction parallel to the first roller brush; the first scraper 2161 is used to scrape off dirt on the first roller brush; similarly, the second roller brush and the third roller brush include scrapers with similar functions at corresponding positions close to the entrances of the dirt suction channels; The second roller brush housing 217 further includes a second scraper 2162 extending along the longitudinal direction of the first roller brush, locally aligned with the first roller brush, and optionally disposed at approximately the center of the longitudinal direction of the first roller brush, and the drive devices for the second and third roller brushes are disposed at central positions. As a result, when the cleaning device 20 is pulled backward (i.e., in the opposite direction to the X direction), more water marks remain at the center of the roller brush covering the cleaning surface. By providing the second scraper 2162, it is possible to reduce water marks remaining at the weaker position (center) of the roller brush covering the cleaning surface. The second roller brush housing 217 includes a third scraper 2171 extending along the longitudinal direction of the second roller brush, locally aligned with the second roller brush, and optionally disposed at the outer edge of the second roller brush housing 217. The third roller brush housing 218 includes a fourth scraper 2181 extending along the longitudinal direction of the third roller brush and locally coincident with the third roller brush. Optionally, the fourth scraper 2181 is provided on the outer edge of the third roller brush housing 218 to reduce water marks left at weak positions (edge ​​positions) of the roller brush covering the cleaning surface. The drive device for the first roller brush is located on the edge of the first roller brush, so that when the cleaning device 20 is pulled forward (i.e., in the X direction), more water marks are left at the edge positions of the roller brush covering the cleaning surface. By providing the third scraper 2171 and the fourth scraper 2181, water marks left at weak positions (edge ​​positions) of the roller brush covering the cleaning surface can be reduced.

[0089] The first scraper 2161 is approximately the same length as the first roller brush, which means that the difference between the length of the first scraper 2161 and the length of the first roller brush is 15% or less (for example, the larger of the two lengths is used as the reference value), for example 5%.

[0090] In some embodiments, a blade (not shown) for interfering with and scraping the surface to be cleaned is further provided on the bottom surface of the cleaning sheet main body 21, near the rear side (rear side in the X direction) of the first roller brush, and may be fixedly or movably connected to the cleaning sheet main body 21, and the movably connected connection may be, for example, a pivot connection, an elastic connection, or a height-adjustable connection. The length of the blade corresponds to the length of the first roller brush, and for example, the two may be the same.

[0091] In some embodiments, as shown in Fig. 20, the cleaning sheet main body 21 further includes a dirt suction channel 2223 for delivering dirty water sucked up from between the first, second, and third roller brushes to the dirty water tank 25. The inlet of the dirt suction channel is located between the first, second, and third roller brushes, and as shown by the arrow in Fig. 20, it extends to the top of the roller brushes, then curves approximately 90 degrees backward (i.e., toward the device main body 22, opposite the X direction) to extend into the device main body, and then curves approximately 90 degrees upward to enter the dirty water tank. Due to the design of the orientation of the dirt suction channel, an angular positional relationship between the device main body 22 and the cleaning sheet main body 21 in the X direction is achieved that is slightly less than 90 degrees, which enables the cleaning device to be locked upright.

[0092] In some embodiments, as shown in FIG. 15 , freely rotatable front collision rollers 212 are further provided at the front edge positions on both sides of the cleaning sheet body 21. When the cleaning sheet body 21 collides with an obstacle, such as furniture or a wall, during cleaning work, the rotation of the rollers provides a cushioning effect, reducing the impact force and preventing damage to the cleaning device or the object that has been hit.

[0093] In the embodiment of the present disclosure, a liquid distribution connector is arranged in the liquid supply duct structure of the cleaning sheet body, and the liquid distribution connector has multiple liquid outlets, and the closer the liquid outlet is to the liquid inlet, the larger the diameter, so that the amount of liquid flowing out from the multiple liquid outlets is as uniform as possible, and the amount of liquid distributed to the brush head or the surface to be cleaned is as uniform as possible. In addition, by providing a scraper at a relatively weak position of the roller brush, dirty water on the roller brush surface can be scraped off, preventing excessive water marks from remaining in this position.

[0094] 21, the present disclosure further provides a cleaning system 100, which includes a shaft 10 and the cleaning device 20 in the above embodiment. The shaft 10 is configured to support the cleaning device 20.

[0095] 22 is a schematic exploded view of the column 10 provided by some embodiments of the present disclosure. As shown in FIG. 22, some embodiments of the present disclosure provide a column 10 configured to support a cleaning device and dry a cleaning member of the cleaning device, where the cleaning device is, for example, a floor scrubbing machine, and the cleaning member is, for example, a cleaning roller brush of the floor scrubbing machine. After the floor scrubbing machine completes its cleaning work, it returns to the column 10 and is supported thereon, allowing the column to perform various operations such as charging, self-cleaning, and drying cycles.

[0096] 22, the column 10 includes a housing 12, which has a storage space 13. For example, the housing 12 includes a bottom plate 11 and an upper shell snapped to the bottom plate 11, and the bottom plate 11 and the upper shell enclose the storage space 13. The bottom plate 11 and the upper shell may be detachable assembly members or may be integrally formed. The column 10 further includes a column exhaust fan 14 provided in the storage space 13, which is configured to generate dry gas in the storage space 13. The housing 12 is provided with a column air outlet 123 configured to be connected to a bottom air outlet of the device body 22 of the cleaning device, for example, a floor scrubber.

[0097] The machine air duct of the cleaning device is used to allow dirty water to flow into the dirty water tank and deliver wet gas during cleaning operation of the cleaning device. When the cleaning device is returned to the column, the column air outlet is connected to the cleaning device air outlet of the machine air duct of the cleaning device. Under the action of the column exhaust fan inside the column, dry gas enters the cleaning device from the cleaning device air outlet and travels along the machine air duct of the cleaning device to the cleaning roller brush of the cleaning device, drying the cleaning roller brush of the cleaning device. At the same time, the machine air duct passes through the dirty water tank of the cleaning device, so that the dry gas passes through the dirty water tank of the cleaning device and dries the inner wall of the dirty water tank, preventing the dirty water tank and the machine air duct from being wet for a long time and causing dirt to grow.

[0098] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: a cleaning sheet body configured to be adapted for movement over a surface to be cleaned; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body, the device body comprising: a wastewater tank detachably attached to one side of the device body; a power source attached to the other side of the device body, the direction from one side of the device body to the other side being substantially perpendicular to the first direction; a first air duct communicating the wastewater tank with an air inlet of the power source; a second air duct communicating the air outlet of the power source with the air outlet of the cleaning device; Here, in response to activation of the power source, a working air flow is sequentially discharged through the cleaning sheet body, the dirty water tank, the first air duct, the power source, the second air duct and the air outlet of the cleaning device.

[0099] In an alternative embodiment, the power source air inlet is located above the power source air outlet.

[0100] In an alternative embodiment, the wastewater tank includes a wastewater tank body and a cover bracket; The wastewater tank body has a wastewater pipe extending along the bottom surface of the wastewater tank body toward the opening of the wastewater tank body, a cover bracket detachably connected to the wastewater tank body and extending along the first direction; Here, the working air flow passes through the wastewater pipe line into the wastewater tank body, then passes through the cover bracket, and then passes through the top end of the wastewater tank into the first air duct.

[0101] In an alternative embodiment, the cover bracket comprises: The wastewater tank further includes a first support bracket extending along the longitudinal direction of the wastewater tank body, wherein the first support bracket is provided with a filtering window, and the working air flow enters the wastewater tank body, passes through the filtering window, and then enters the first air duct from the top end of the wastewater tank.

[0102] In an alternative embodiment, the cover bracket comprises: The cover bracket further includes a filter assembly provided at an end thereof near the opening of the wastewater tank body and configured to allow the working air flow to pass through the wastewater line, the filter window, and the filter assembly and enter the first air duct.

[0103] In an alternative embodiment, the second air duct is provided between the power source and the wastewater tank.

[0104] In an alternative embodiment, the second air duct extends along a first direction of the device body near the cleaning sheet body, then turns around and bends to communicate with the air outlet of the cleaning device.

[0105] In an alternative embodiment, the cover bracket comprises: The filter mesh bag further includes a filter mesh bag extending substantially along the extension direction of the first support bracket.

[0106] In an alternative embodiment, the air outlet of the cleaning device is a plurality of through holes.

[0107] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: a device housing, the device housing comprising: a cleaning sheet body configured to be adapted for movement over a surface to be cleaned; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body; an apparatus air duct configured to form a flow path for the working air flow; the device air duct is composed of at least a dirt suction port, a wastewater tank, and a power source, and when the power source is activated, the working air flow flows through the dirt suction port, the wastewater tank, and the power source in sequence; The front and rear air ducts of the equipment air duct are respectively a front air duct and a rear air duct, and the working air flows in substantially opposite directions in the front air duct and the rear air duct.

[0108] In an alternative embodiment, the rear air duct comprises: a first air duct communicating an air outlet of the wastewater tank with an air inlet of the power source; a second air duct communicating the air outlet of the power source with the air outlet of the cleaning device; In response to activation of the power source, a working air flow passes generally top to bottom through the first air duct, the power source, and the second air duct.

[0109] In an alternative embodiment, the front air duct comprises: a wastewater pipe extending longitudinally in a first direction; In response to activation of the power source, the working air flow flows generally from bottom to top along the sewer line.

[0110] In an alternative embodiment, the front air duct comprises: The system further includes a filtering window, and the working air flows generally from bottom to top along the wastewater line, the filtering window, and the air outlet of the wastewater tank.

[0111] In an alternative embodiment, the front air duct comprises: The system further includes a filter assembly provided at the air outlet of the wastewater tank, and the working air flows substantially from bottom to top along the wastewater pipe, the filter window, and the filter assembly.

[0112] In an alternative embodiment, the working air flow flows in the second air duct along a generally top-to-bottom direction.

[0113] An embodiment of the present disclosure further provides a cleaning device, the cleaning device comprising: a cleaning sheet body adapted to move on a surface to be cleaned and configured to have a dirt suction port; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body; The device itself is a power source configured to generate a moving working air stream when activated; a wastewater tank configured to contain wastewater collected from the surface to be cleaned; The working air flow has a travel path that passes through the dirt suction port, the wastewater tank, and the power source in order, and the working air flow contains the wastewater, and the wastewater is collected and stored in the wastewater tank; The power source has an air inlet and an air outlet, the working air flow enters the power source through the air inlet, and the air inlet extends along a first direction away from the cleaning sheet body.

[0114] In an alternative embodiment, the device body comprises: a first air duct communicating the wastewater tank with an air inlet of the power source; a second air duct communicating the air outlet of the power source with the air outlet of the cleaning device; Here, in response to activation of the power source, a working air flow passes sequentially through the cleaning sheet body, the wastewater tank, the first air duct, the power source and the second air duct, and is discharged from the air outlet of the cleaning device.

[0115] In an alternative embodiment, the wastewater tank includes a wastewater tank body and a cover bracket; The wastewater tank body has a wastewater pipe extending along the bottom surface of the wastewater tank body toward the opening of the wastewater tank body, a cover bracket detachably connected to the wastewater tank body and extending along the first direction; The working air flow passes through the wastewater line into the wastewater tank body, then through the cover bracket, and then through the top end of the wastewater tank into the first air duct.

[0116] In an alternative embodiment, the cover bracket comprises: The wastewater tank further includes a first support bracket extending along the longitudinal direction of the wastewater tank body, wherein the first support bracket is provided with a filtering window, and the working air flow enters the wastewater tank body, passes through the filtering window, and then enters the first air duct from the top end of the wastewater tank.

[0117] In an alternative embodiment, the cover bracket comprises: The cover bracket further includes a filter assembly provided at an end thereof near the opening of the wastewater tank body and configured to allow the working air flow to pass through the wastewater line, the filter window, and the filter assembly and enter the first air duct.

[0118] In an alternative embodiment, the second air duct is formed by a space between elements in the cleaning device.

[0119] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any one of the preceding embodiments, wherein the pillar is configured to support the cleaning device.

[0120] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: a device body extending longitudinally in a first direction; The device itself is a clean water tank housing configured to hold a clean water tank and a dirty water tank housing configured to hold a dirty water tank; This clean water tank housing is a first chassis configured to hold the clean water tank and having at least one first water outlet; This wastewater tank housing is a side wall of the wastewater tank housing portion extending along the first direction; Here, the first water leak port is fluidly connected to the side wall of the wastewater tank housing portion and configured to discharge liquid in the first chassis through the first water leak port and the side wall of the wastewater tank housing portion.

[0121] In an optional embodiment, a liquid conduction groove is provided in the side wall of the wastewater tank accommodating section, and the first water leak port is fluidly connected to the liquid conduction groove and configured to discharge liquid in the first chassis through the first water leak port and the liquid conduction groove.

[0122] In an alternative embodiment, the device body comprises: The first chassis further includes a water collecting structure for connecting the first chassis to the side wall of the wastewater tank accommodating portion, and is configured to direct liquid in the first chassis through the first water leak outlet, the water collecting structure, and the side wall of the wastewater tank accommodating portion.

[0123] In an alternative embodiment, the water collection structure comprises: A water collection structure body; and a water collecting tank provided on both sides of the water collecting structure body and configured to allow liquid in the first chassis to flow into the water collecting tank through the first water leak port.

[0124] In an alternative embodiment, the water collection tank comprises: The wastewater tank accommodation portion includes a water collection tank hole communicating with a side wall thereof and configured to allow liquid flowing into the water collection tank to flow out through the water collection tank hole.

[0125] In an alternative embodiment, the collection basin further comprises a sloped bottom; The water collection tank hole is provided in the inclined bottom surface, and is configured to allow liquid that has flowed into the water collection tank to flow out from the inclined bottom surface and the water collection tank hole.

[0126] In an alternative embodiment, the wastewater tank housing comprises: and a second chassis connected to a side wall of the wastewater tank housing and configured to receive the wastewater tank, wherein the second chassis has at least one second water leak port.

[0127] In an alternative embodiment, the device body comprises: a dirt suction channel that penetrates the second chassis and communicates with the wastewater tank, and is configured to allow sucked wastewater to enter the wastewater tank through the dirt suction channel; The device further includes a flow guide channel that is in communication with the second water leak outlet and the dirt suction channel and is configured to direct the liquid that has flowed in from the second water leak outlet from the flow guide channel to the dirt suction channel.

[0128] In an alternative embodiment, the clean water tank housing comprises: A handle release structure is provided on a side wall of the clean water tank housing and is configured to release the cleaner handle when depressed.

[0129] In an alternative embodiment, the handle removal mechanism comprises: a pressing portion provided in close contact with a side wall of the clean water tank housing portion; The cleaning device further includes a push-up portion connected to the pressing portion and configured to push up the locking protrusion of the cleaning device handle under pressure from the pressing portion, and then release the cleaning device handle from the device body.

[0130] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: The cleaning device further includes a device body extending longitudinally in a first direction, a dirt suction port configured to draw dirty water from a surface to be cleaned into an inlet of the cleaning device, and a dirt suction channel configured to be in fluid communication with the dirt suction port and the dirty water tank; The device itself is a clean water tank housing configured to house a clean water tank; a wastewater tank housing configured to house the wastewater tank; Here, both the clean water tank housing and the waste water tank housing are fluidly connected to the dirt suction channel, and liquid remaining in the clean water tank housing and the waste water tank housing is uniformly guided to the dirt suction channel and collected in the waste water tank.

[0131] In an alternative embodiment, the clean water tank housing comprises: a first chassis configured to receive a clean water tank, wherein the first chassis has at least one first water leak; The wastewater tank housing includes: a side wall of the wastewater tank housing portion extending along the first direction; Here, the first water leak port is connected to a side wall of the wastewater tank housing portion and configured to guide the liquid to the dirt suction channel through the first water leak port and the side wall of the wastewater tank housing portion.

[0132] In an optional embodiment, a liquid conduction groove is provided on the side wall edge of the wastewater tank accommodating portion, and the first water leakage port is connected to the liquid conduction groove and configured to allow the liquid to be discharged through the first water leakage port and the liquid conduction groove.

[0133] In an alternative embodiment, the device body comprises: The tank further includes a water collecting structure configured to connect the first chassis to a side wall of the wastewater tank accommodating portion and to sequentially guide the liquid through the first water leak outlet, the water collecting structure, and the side wall of the wastewater tank accommodating portion.

[0134] In an alternative embodiment, the wastewater tank housing comprises: and a second chassis connected to a side wall of the wastewater tank housing and configured to receive the wastewater tank, wherein the second chassis has at least one second water leak port.

[0135] In an alternative embodiment, the device body comprises: The device further includes a guide channel that communicates the second water leak port, the side wall of the wastewater tank housing, and the dirt suction channel, and is configured to allow the liquid to flow into the dirt suction channel via the guide channel.

[0136] In an alternative embodiment, the flow channel includes a liquid collector.

[0137] In an alternative embodiment, the device body comprises: The device further includes a guide channel, which is a duct structure for connecting the second water leak port and the dirt suction channel.

[0138] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any one of the above embodiments, wherein the post is configured to support the cleaning device.

[0139] Some embodiments of the present disclosure provide a cleaning device, the cleaning device comprising: an apparatus housing; and a liquid supply system configured to supply cleaning liquid to the cleaning roller brush and / or the surface to be cleaned; The device housing is a device body extending longitudinally in a first direction; a cleaning sheet body pivotally connected to the device body, The liquid supply system a liquid reservoir configured to store a cleaning liquid; a liquid supply line; This liquid supply line is a fluid dispensing connector configured to dispense the cleaning fluid; This liquid dispensing connector is a liquid inlet for the cleaning liquid; and at least two liquid outlets, the diameters of the at least two liquid outlets increasing as they approach the liquid inlet.

[0140] In an alternative embodiment, the liquid dispensing connector comprises: a main fluid pipe having a first end serving as the liquid inlet and a second end having a sealed structure; and at least two liquid distribution pipes communicating generally perpendicular to the main fluid pipe, the liquid distribution pipes having the liquid outlets.

[0141] In an alternative embodiment, the at least two liquid distribution tubes have essentially the same outer diameter and different inner diameters.

[0142] In an alternative embodiment, the at least two liquid distribution pipes include: The main fluid pipe includes a first liquid distribution pipe, a second liquid distribution pipe, a third liquid distribution pipe, and a fourth liquid distribution pipe provided in this order along a direction from the first end to the second end of the main fluid pipe.

[0143] In an alternative embodiment, the inner diameter of the first liquid distribution pipe is 1.35 to 1.45 mm, the inner diameter of the second liquid distribution pipe is 1.25 to 1.35 mm, the inner diameter of the third liquid distribution pipe is 1.15 to 1.25 mm, and the inner diameter of the fourth liquid distribution pipe is 1.05 to 1.15 mm.

[0144] In an alternative embodiment, the cleaning sheet body comprises: a first roller brush receiving portion configured to assemble the first roller brush; a second roller brush receiving portion configured to assemble the second roller brush; a third roller brush receiving portion configured to assemble the third roller brush; Here, the cleaning liquid is distributed from the liquid outlet of the liquid distribution connector to the first roller brush, the second roller brush, and the third roller brush through a liquid pipe.

[0145] In an alternative embodiment, the first roller brush housing comprises: a first scraper extending along the longitudinal direction of the first roller brush and having a length substantially equal to that of the first roller brush; and a second scraper extending along the longitudinal direction of the first roller brush and locally coinciding with the first roller brush.

[0146] In an alternative embodiment, the second roller brush housing comprises: a third scraper extending along the length of the second roller brush and locally coinciding with the second roller brush; and / or The third roller brush housing portion is The third roller brush includes a fourth scraper extending along the longitudinal direction thereof and locally coinciding with the third roller brush.

[0147] In an alternative embodiment, the cleaning sheet body comprises: The roller brush further includes a dirt suction channel configured to deliver dirty water sucked up from between the first roller brush, the second roller brush, and the third roller brush.

[0148] In an alternative embodiment, the cleaning sheet body comprises: The cleaning sheet includes front collision rollers provided on both sides of the cleaning sheet body.

[0149] Some embodiments of the present disclosure provide a cleaning system, the cleaning system comprising: The pillar and and a cleaning device according to any one of the preceding claims, wherein the pillar is configured to support the cleaning device.

[0150] Finally, each embodiment in this specification is described in a recursive manner, focusing on the differences between each embodiment and other embodiments, and references may be made to the same or similar parts between the embodiments. The systems or devices disclosed in the embodiments correspond to the methods disclosed in the embodiments, and therefore the description may be relatively brief, and reference may be made to the method description for relevant points.

[0151] The foregoing are merely illustrative examples of the present disclosure and are not intended to limit the scope of the present disclosure. In other words, equivalent changes and modifications made in accordance with the teachings of the present disclosure remain within the scope of the present disclosure. Those skilled in the art will be able to easily devise other embodiments of the present disclosure after considering the specification and practicing the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure in accordance with the general principles of the present disclosure, including common knowledge or commonly used technical means in the technical field that are not described in the present disclosure. The specification and examples are to be considered as illustrative only, and the scope and spirit of the present disclosure are to be limited only by the claims.

Claims

1. a cleaning sheet body configured to be adapted for movement over a surface to be cleaned; a device body extending longitudinally in a first direction and pivotally connected to the cleaning sheet body, The device body includes: a wastewater tank detachably attached to one side of the device body; a power source attached to the other side of the device body, the direction from one side of the device body to the other side being substantially perpendicular to the first direction; a first air duct communicating the wastewater tank with an air inlet of the power source; a second air duct communicating the air outlet of the power source with the air outlet of the cleaning device; In response to activation of the power source, a working air flow is sequentially discharged through the cleaning sheet body, the wastewater tank, the first air duct, the power source, the second air duct and the air outlet of the cleaning device.

2. 2. The cleaning device of claim 1, wherein the air inlet of the power source is located above the air outlet of the power source.

3. The wastewater tank includes a wastewater tank body and a cover bracket; The wastewater tank body has a wastewater pipe extending along the bottom surface of the wastewater tank body toward the opening of the wastewater tank body, a cover bracket detachably connected to the wastewater tank body and extending along the first direction; 2. The cleaning apparatus of claim 1, wherein the working air flow passes through the wastewater line into the wastewater tank body, then through the cover bracket, and then through the top end of the wastewater tank into the first air duct.

4. The cover bracket is 4. The cleaning device according to claim 3, further comprising a first support bracket extending along the longitudinal direction of the wastewater tank body, the first support bracket being provided with a filtering window, and the working air flow enters the wastewater tank body, passes through the filtering window, passes through the top end of the wastewater tank and enters the first air duct.

5. the cover bracket further includes a filtration assembly; 5. The cleaning device according to claim 4, wherein the filter assembly is provided at an end of the cover bracket near the opening of the wastewater tank body and configured to allow the working air flow to pass through the wastewater pipe line, the filter window, and the filter assembly and enter the first air duct.

6. The cleaning device of claim 1 , wherein the second air duct is provided between the power source and the wastewater tank.

7. The cleaning device of claim 6 , wherein the second air duct extends along the first direction of the device body near the cleaning sheet body, then turns around and bends to communicate with the air outlet of the cleaning device.

8. The cover bracket is 5. The cleaning device of claim 4, further comprising a filter mesh bag extending substantially along the extension direction of the first support bracket.

9. The cleaning device of claim 1 , wherein the air outlet of the cleaning device is a plurality of through holes.

10. The pillar and A cleaning device according to any one of claims 1 to 9, wherein the post is configured to support the cleaning device.

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