Cleaning apparatus

Abstract

The application relates to the technical field of cleaning products, in particular to a cleaning device. The cleaning device provided by the application comprises a floor brush assembly and a main machine, the main machine is movably connected with the floor brush assembly; the floor brush assembly is provided with a dirt suction port, a sewage tank is arranged on the main machine, and a pipeline is connected between the dirt suction port and the sewage tank; the pipeline comprises a hard pipeline and a hose, and the length-width ratio of the section of at least the hard pipeline is greater than 1. In this way, the pipeline can be in a flat ventilation structure, and long strip-shaped solid waste can flow through the pipeline and be collected and stored by the main machine, so that the pipeline is prevented from being blocked.

Description

Technical Field

[0001] This application relates to the field of cleaning product technology, and more particularly to a cleaning device. Background Technology

[0002] A floor scrubber is a smart cleaning appliance that integrates functions such as vacuuming, mopping, washing, and self-cleaning. It is widely used for environmental cleaning in various indoor and outdoor scenarios, and can clean up dry and wet waste in one go, maintaining a clean and tidy living and working environment.

[0003] In related technologies, floor scrubbers typically include a floor brush and a main unit, which are connected. The main unit of the floor scrubber usually has a wastewater tank. The floor brush moves across the ground, sucking up liquid stains and solid debris, and transporting them through an air duct to the main unit for storage. The wastewater tank can be removed for cleaning after collecting wastewater and debris.

[0004] However, the long strips of solid waste sucked in by current floor scrubbers are difficult to pass through the air ducts, which can easily cause blockages. Utility Model Content

[0005] This application provides a cleaning device to solve the technical problem that current floor scrubbers easily cause air duct blockage when sucking in long strips of solid waste.

[0006] This application provides a cleaning device, which includes a floor brush assembly and a main unit, wherein the main unit is movably connected to the floor brush assembly; the floor brush assembly has a suction port, the main unit is provided with a wastewater tank, and a pipe is connected between the suction port and the wastewater tank;

[0007] The pipeline includes rigid pipes and flexible pipes, wherein at least the rigid pipe has a cross-sectional aspect ratio greater than 1.

[0008] The cleaning equipment provided in this application designs the cross-sectional shape of the pipe so that, in at least two directions within the cross-sectional plane, the dimension in one direction is larger than the dimension in the other direction, thereby making the air duct a flat ventilation structure. In this way, long strips of solid waste can flow through the pipe and be collected and stored by the main unit, avoiding blockage of the suction air duct.

[0009] As an optional implementation, the rigid duct includes a floor brush duct and a suction duct, the floor brush duct being disposed on the floor brush assembly, and the suction port being connected to the floor brush duct; the suction duct is disposed on the main unit, and the floor brush duct and the suction duct are connected through the flexible hose;

[0010] The length dimension of the cross-section of the sewage suction duct along the first direction is smaller than the length dimension of the cross-section of the sewage suction duct along the second direction, wherein the first direction is perpendicular to the second direction.

[0011] This design prevents long, thin solid debris from entering the host and causing blockages that are difficult to clean.

[0012] As an optional implementation, the cross-section of the suction duct has a length of 25 mm or more along the second direction, where the second direction is the width direction of the main unit.

[0013] With this design, the suction duct has a flat structure and makes full use of the space in the width direction of the main unit.

[0014] As an optional implementation, the cross-section of the suction duct has a length greater than or equal to 15 mm along the first direction; when the main unit is placed vertically relative to the floor brush assembly, the first direction is consistent with the cleaning direction of the floor brush assembly.

[0015] This design allows the suction duct to have a sufficiently large size in a narrower direction, ensuring that solid waste other than long strips can pass through smoothly.

[0016] As an optional implementation, the cross-sectional area of ​​the suction duct is less than or equal to 500 mm². 2 .

[0017] This design avoids excessively large ventilation cross-sections in the suction duct, ensuring a certain airflow velocity to improve dust and dirt suction efficiency.

[0018] As an optional implementation, the suction duct extends along the height of the main unit, and the air inlet of the suction duct is located at the bottom of the main unit.

[0019] With this configuration, sewage and debris sucked into the main unit can move upwards from below the main unit with the airflow, improving the smoothness of airflow.

[0020] As an optional implementation, the cross-section of the suction duct has a first extension section on both sides in a first direction, the first extension section extending in a straight line; the cross-section of the suction duct has a second extension section on both sides in a second direction, the second extension section extending in an arc.

[0021] This design allows the suction duct to be flat and adaptable to the shape and contour of the main unit's internal space, thus improving the utilization rate of the space inside the main unit.

[0022] As an optional implementation, the main unit includes a body and a fan, with the sewage tank and the fan disposed in the body; the suction duct includes a first duct and a second duct, with the first duct disposed in the body and the second duct disposed in the sewage tank, the air inlet of the first duct connected to the flexible hose, the air outlet of the first duct connected to the air inlet of the second duct, and the air outlet of the second duct connected to the air inlet section of the fan.

[0023] With this configuration, the sucked-in sewage and garbage can be collected in the sewage tank by passing through the first and second air ducts in sequence, thus preventing solid waste from clogging the machine body and the sewage tank.

[0024] As an optional implementation, the wastewater tank is disposed above the first air duct, and the second air duct and the first air duct extend in the same direction.

[0025] This design ensures the smooth flow of sewage and garbage into the sewage tank.

[0026] As an optional implementation, the sewage tank is detachably connected to the machine body; one of the air outlet end of the first air duct and the air inlet end of the second air duct is provided with a sealing element; when the sewage tank is installed on the machine body, the sealing element abuts between the air outlet end of the first air duct and the air inlet end of the second air duct, and is arranged circumferentially around the first air duct and the second air duct.

[0027] This design improves the sealing of the connection between the first and second air ducts, preventing sewage leakage.

[0028] As an optional implementation, the hose has a circular cross-sectional shape; or the aspect ratio of the hose cross-section is greater than 1.

[0029] This application provides a cleaning device including a floor brush assembly and a main unit, with the main unit movably connected to the floor brush assembly. The floor brush assembly has a suction port, and the main unit is equipped with a wastewater tank. A pipe connects the suction port to the wastewater tank. The pipe includes a rigid pipe and a flexible pipe, wherein at least the rigid pipe has a cross-sectional aspect ratio greater than 1. This allows the pipe to have a flat, ventilated structure, enabling long, thin solid waste to flow through the pipe and be collected and stored by the main unit, thus preventing pipe blockage.

[0030] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the cleaning equipment provided by this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A cross-sectional view of the cleaning equipment provided in the embodiments of this application;

[0033] Figure 2 A radial sectional view of the body of the cleaning equipment provided in the embodiments of this application;

[0034] Figure 3 This is a radial cross-sectional view of the wastewater tank in the cleaning equipment provided in an embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10- Cleaning equipment;

[0037] 100 - Floor brush assembly; 101 - Suction port; 102 - Floor brush air duct;

[0038] 200-Main unit; 201-Sewage suction duct; 201a-First duct; 201b-Second duct; 202-First extension section; 203-Second extension section; 210-Main unit; 220-Fan; 230-Sewage tank;

[0039] 300-Hose. Detailed Implementation

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0042] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0043] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] A floor scrubber is a smart cleaning appliance that integrates vacuuming, mopping, scrubbing, and self-cleaning functions. It is widely used for cleaning various indoor and outdoor environments and can clean both dry and wet waste in one go. A typical floor scrubber consists of a floor brush and a main unit. The brush connects to the main unit, and the cleaning process involves spraying clean water, scrubbing the floor, and collecting wastewater. The main unit usually has a wastewater tank where liquid stains and solid waste are filtered and stored. This tank can be removed for cleaning after collecting wastewater and debris.

[0046] However, currently, the main unit of the floor scrubber and the floor brush are connected by air ducts. The air duct inside the main unit can connect the wastewater tank and the floor brush. The wastewater and solid waste sucked in by the floor brush need to pass through the air duct to enter the wastewater tank. In order to ensure a high suction air velocity, the air duct of the main unit is usually circular with a small cross-sectional size. Long strips of solid waste sucked in have difficulty passing through the air duct, which can easily cause blockage of the air duct.

[0047] To address the aforementioned technical problems, this application provides a cleaning device. This cleaning device employs a design that makes the suction duct flat, allowing long strips of solid waste to pass through in a single direction. This prevents the suction duct from becoming clogged and ensures smooth suction of wastewater and solid waste.

[0048] The following is an example illustrating the application scenarios of the cleaning equipment provided in the embodiments of this application.

[0049] The applicable product types provided in this application embodiment may include, but are not limited to, floor mopping machines, floor scrubbers, etc. Depending on the product type, the cleaning equipment provided in this application embodiment can be used to clean surfaces of various materials, such as floors, floor tiles, glass, etc. This application embodiment does not make specific limitations in this regard.

[0050] Figure 1 A cross-sectional view of the cleaning equipment provided in the embodiments of this application; Figure 2 A radial sectional view of the body of the cleaning equipment provided in the embodiments of this application; Figure 3 This is a radial cross-sectional view of the wastewater tank in the cleaning equipment provided in an embodiment of this application.

[0051] See Figures 1 to 3 As shown in the figure, this application embodiment provides a cleaning device 10, which includes a floor brush assembly 100 and a main unit 200, with the main unit 200 movably connected to the floor brush assembly 100. The main unit 200 is used for users to lift or drag the cleaning device 10. When using the cleaning device 10 to clean the floor, dragging the main unit 200 can move the floor brush on the floor, thereby cleaning the floor.

[0052] The floor brush assembly 100 has a suction port 101, and the main unit 200 is equipped with a wastewater tank 230. A pipe connects the suction port 101 to the wastewater tank 230. The garbage and wastewater sucked in from the suction port 101 can enter the wastewater tank 230 through the pipe.

[0053] In some embodiments, the conduit includes a rigid conduit and a flexible hose 300, wherein at least the rigid conduit has a cross-section with an aspect ratio greater than 1.

[0054] It is understandable that the aspect ratio of the rigid duct is greater than 1, while the aspect ratio of the flexible hose 300 can be equal to or greater than 1. At least in two directions within the cross-sectional plane, the dimension of the rigid duct in one direction is greater than the dimension in the other direction, thus making the air duct, at least the portion of the rigid duct, a flat ventilation structure. In this way, long strips of solid waste can flow through the duct and be collected and stored by the main unit 200.

[0055] In some embodiments, the rigid duct includes a floor brush duct 102 and a suction duct 201. The floor brush duct 102 is disposed on the floor brush assembly 100, and the suction port 101 is connected to the floor brush duct 102. The suction duct 201 is disposed on the main unit 200, and the floor brush duct 102 and the suction duct 201 are connected by a flexible hose 300.

[0056] Understandably, the suction port 101 faces the floor being cleaned. When the cleaning device 10 cleans the floor, the airflow generated by the main unit 200 causes the suction port 101 to generate suction, drawing the wastewater and solid waste generated during cleaning from the floor brush duct 102 through the hose 300 into the suction duct 201, and then from the suction duct 201 into the wastewater tank 230 on the main unit 200 for collection and storage. Since the floor brush assembly 100 is movably connected to the main unit 200, allowing the floor brush assembly 100 to clean every corner of the floor in all directions, a hose 300 needs to be connected between the floor brush assembly 100 and the main unit 200 to allow wastewater and debris to pass through, ensuring the smoothness of the suction process.

[0057] In some embodiments, the length dimension of the cross-section of the suction duct 201 along the first direction is smaller than the length dimension of the cross-section of the suction duct 201 along the second direction, wherein the first direction is perpendicular to the second direction.

[0058] It is understandable that the cross-section of the suction duct 201 is a radial section perpendicular to the extension direction of the suction duct 201; the first direction and the second direction are perpendicular to each other, which can form a coordinate system of the plane containing the cross-section of the suction duct 201. In these first and second directions, the dimensions of the suction duct 201 are one wide and one narrow, which allows the suction duct 201 to have a flat structure, with a sufficiently large dimension in one direction to allow long strips of solid waste, such as sunflower seed shells, to pass through.

[0059] Define the first direction as the X direction and the second direction as the Y direction. The X direction and the Y direction can correspond to the length and width directions of the host 200, respectively.

[0060] It should be noted that in the cleaning equipment 10 provided in this application embodiment, the design of the cross-sectional shape of the suction duct 201 on the main unit 200 makes the dimension of the suction duct 201 in one direction larger than the dimension of the other direction in two directions within the cross-sectional plane, thereby making the suction duct 201 a flat ventilation structure. In this way, long strips of solid waste can flow through the suction duct 201 and be collected and stored by the main unit 200, avoiding blockage of the suction duct 201.

[0061] In addition, since the size in the first direction is still relatively small compared to the second direction, the area of ​​the ventilation cross section of the sewage suction duct 201 will not be too large. Therefore, the sewage suction duct 201 can still maintain a large airflow velocity to ensure the sewage suction efficiency and avoid water stains remaining on the ground.

[0062] In some embodiments, the cross-sectional shape of the hose 300 is circular. Alternatively, the aspect ratio of the cross-section of the hose 300 is greater than 1.

[0063] For example, the hose 300 has a circular cross-sectional shape, allowing it to bend smoothly in all directions, improving the smoothness and freedom of movement when the floor brush assembly 100 and the main unit 200 move relative to each other. The diameter of the hose 300 can be set to be equal to or similar to the length of the rigid pipe, improving the smoothness of passing long strips of solid waste through the hose.

[0064] For example, the aspect ratio of the cross-section of the flexible hose 300 is greater than 1, that is, the length of the flexible hose 300 is greater than its width. In this way, the flexible hose 300 can have a flat structure like a rigid pipe, which improves the smoothness of long strips of solid waste passing through the flexible hose.

[0065] The specific characteristics of the cross-sectional shape and dimensions of the sewage suction duct 201 will be described in detail below.

[0066] Please continue to refer to Figures 1 to 3 In one possible implementation, the cross-section of the suction duct 201 has a length along the second direction greater than or equal to 25 mm, where the second direction is the width direction of the main unit 200. The suction duct 201 has a flat structure and makes full use of the space in the width direction of the main unit 200, avoiding encroachment on the installation space of the sewage tank 230 on the main unit 200 in the first direction.

[0067] For example, the specific value of the length dimension of the cross section of the suction duct 201 along the second direction may include, but is not limited to, 25mm, 26mm, 30mm, 35mm, 40mm, 50mm, or larger dimensions, as long as they do not exceed the dimensions of the main unit 200 housing in the second direction. This application embodiment does not specifically limit this.

[0068] In one possible implementation, the cross-section of the suction duct 201 has a length along the first direction greater than or equal to 15 mm. When the main unit 200 is placed vertically relative to the floor brush assembly 100, the first direction is consistent with the cleaning direction of the floor brush assembly 100, that is, the first direction can be understood as the front-back direction of the cleaning device 10, and the second direction can be understood as the left-right direction of the cleaning device 10.

[0069] Understandably, in addition to long and narrow solid waste, the suction duct 201 also needs to suck up solid waste of other shapes. By keeping the size of the narrower direction of the suction duct 201 at a lower limit, the suction duct 201 can have a sufficiently large size in the narrower direction, ensuring that other solid waste besides long and narrow shapes can also pass through smoothly.

[0070] For example, the specific value of the length of the cross-section of the suction duct 201 along the first direction may include, but is not limited to, 15mm, 16mm, 20mm, 25mm, 30mm, 40mm, or larger dimensions, as long as they are smaller than the cross-section of the suction duct 201 in the second direction and do not exceed the front-rear dimensions of the main unit 200 housing. This application embodiment does not specifically limit this.

[0071] In some embodiments, the cross-sectional area of ​​the suction duct 201 is less than or equal to 500 mm². 2 This avoids making the ventilation cross-section of the suction duct 201 too large, ensuring that the airflow has a certain velocity to improve the efficiency of dust and dirt suction.

[0072] It is understandable that the main unit 200 is equipped with a fan 220 to create negative pressure airflow. When the fan 220 maintains a specific operating frequency, the airflow remains constant. At this time, the larger the cross-sectional area of ​​the suction duct 201, the slower the airflow velocity; conversely, the smaller the cross-sectional area of ​​the suction duct 201, the faster the airflow velocity. Therefore, the cross-sectional area of ​​the suction duct 201 is designed to be less than or equal to 500 mm². 2 This ensures that the airflow in the suction duct 201 has sufficient velocity to create negative pressure and draw in sewage and solid waste.

[0073] It should be noted that the above-mentioned limitations on the dimensions and area of ​​the cross-section of the sewage suction duct 201 can be satisfied simultaneously to achieve the optimal suction effect of sewage and solid waste.

[0074] In some embodiments, the suction duct 201 extends along the height direction of the main unit 200, and the air inlet of the suction duct 201 is located at the bottom of the main unit 200. Sewage and debris sucked into the main unit 200 can move upward from below the main unit 200 with the airflow, thereby improving the smoothness of airflow.

[0075] Understandably, the negative pressure airflow draws sewage and solid waste from bottom to top into the sewage tank 230, where it can be filtered to separate the gas from the sewage and solid waste. The gas continues to flow to the blower 220, while the sewage and solid waste remain in the sewage tank 230.

[0076] In some embodiments, the cross-section of the suction duct 201 has first extensions 202 on both sides in a first direction, and the first extensions 202 extend in a straight line. The cross-section of the suction duct 201 has second extensions 203 on both sides in a second direction, and the second extensions 203 extend in an arc.

[0077] It is understandable that by designing the shape of the first extension section 202 and the second extension section 203, the suction duct 201 can adapt to the shape and contour of the internal space of the main unit 200 while having a flat structure, thereby improving the space utilization rate inside the main unit 200.

[0078] In one possible implementation, the host 200 may include a body 210, a fan 220, and a sewage tank 230, with the sewage tank 230 and the fan 220 disposed on the body 210.

[0079] The suction duct 201 includes a first duct 201a and a second duct 201b. The first duct 201a is located in the body 210, and the second duct 201b is located in the sewage tank 230. The air inlet of the first duct 201a is connected to the hose 300, and the air outlet of the first duct 201a is connected to the air inlet of the second duct 201b. The air outlet of the second duct 201b is connected to the air inlet section of the blower 220. The sewage and garbage sucked in can pass through the first duct 201a and the second duct 201b in sequence and be collected in the sewage tank 230, thus preventing solid waste from clogging the body 210 and the sewage tank 230.

[0080] For example, the sewage tank 230 may have a storage cavity for sewage and solid waste. The second air duct 201b may be located on the horizontal side of the storage cavity. The negative pressure airflow carrying sewage and solid waste will flow to the top of the second air duct 201b after entering the storage cavity, and then enter the storage cavity. The gas, sewage and solid waste are separated above the storage cavity. The sewage and solid waste are separated and fall into the storage cavity, while the clean airflow continues to flow upward to the blower 220.

[0081] For example, in the storage chamber of the sewage tank 230, sewage and garbage can be stored separately, with solid garbage stored in the upper layer and sewage stored in the lower layer, thus avoiding the garbage from being soaked in sewage for a short period of time and producing an odor.

[0082] In some embodiments, the sewage tank 230 is disposed above the first air duct 201a, and the second air duct 201b and the first air duct 201a extend in the same direction, thereby ensuring the smooth flow of sewage and garbage into the sewage tank 230.

[0083] It is understandable that when the main unit 200 is placed vertically, both the first air duct 201a and the second air duct 201b extend in the vertical direction.

[0084] In some embodiments, the wastewater tank 230 is detachably connected to the body 210. A sealing element is provided at either the air outlet of the first air duct 201a or the air inlet of the second air duct 201b. When the wastewater tank 230 is installed on the body 210, the sealing element abuts between the air outlet of the first air duct 201a and the air inlet of the second air duct 201b, and is circumferentially arranged around the first air duct 201a and the second air duct 201b, thereby improving the sealing performance of the connection between the first air duct 201a and the second air duct 201b and preventing wastewater leakage.

[0085] For example, the sewage tank 230 and the body 210 can be assembled by a snap-fit ​​structure. During assembly, the lower part of the sewage tank 230 can be connected to the body 210 first, so that the air outlet of the first air duct 201a and the air inlet of the second air duct 201b are brought together. Then the sewage tank 230 and the body 210 are snapped together and fixed. The specific setting position of the snap-fit ​​is not limited in this embodiment.

[0086] It should be noted that, in this embodiment of the application, the cleaning structure provided on the floor brush assembly 100 can be a roller brush, which cleans the floor, or the cleaning structure can be a water spray component, which cleans and rinses the floor, and the wastewater on the floor is then sucked into the floor brush air duct 102 by the negative pressure suction of the suction port 101.

[0087] This application provides a cleaning device including a floor brush assembly and a main unit, with the main unit movably connected to the floor brush assembly. The floor brush assembly has a suction port, and the main unit is equipped with a wastewater tank. A pipe connects the suction port to the wastewater tank. The pipe includes a rigid pipe and a flexible pipe, wherein at least the rigid pipe has a cross-sectional aspect ratio greater than 1. This allows the pipe to have a flat, ventilated structure, enabling long, thin solid waste to flow through the pipe and be collected and stored by the main unit, thus preventing pipe blockage.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device, characterized in that, The cleaning equipment includes a floor brush assembly (100) and a main unit (200), the main unit (200) being movably connected to the floor brush assembly (100); the floor brush assembly (100) has a suction port (101), the main unit (200) is provided with a wastewater tank (230), and a pipe is connected between the suction port (101) and the wastewater tank (230); The pipeline includes a rigid pipe and a flexible pipe (300), wherein at least the rigid pipe has a cross-section with an aspect ratio greater than 1.

2. The cleaning equipment according to claim 1, characterized in that, The rigid pipe includes a floor brush duct (102) and a suction duct (201). The floor brush duct (102) is disposed on the floor brush assembly (100), and the suction port (101) is connected to the floor brush duct (102). The suction duct (201) is disposed on the main unit (200), and the floor brush duct (102) and the suction duct (201) are connected through the flexible hose (300). The length dimension of the cross section of the suction duct (201) along the first direction is smaller than the length dimension of the cross section of the suction duct (201) along the second direction, wherein the first direction is perpendicular to the second direction.

3. The cleaning equipment according to claim 2, characterized in that, The cross-section of the suction duct (201) has a length of 25 mm or more along the second direction, which is the width direction of the main unit (200).

4. The cleaning equipment according to claim 2, characterized in that, The cross-section of the suction duct (201) has a length of 15 mm or more along the first direction; when the main unit (200) is placed vertically relative to the floor brush assembly (100), the first direction is consistent with the cleaning direction of the floor brush assembly (100).

5. The cleaning equipment according to claim 2, characterized in that, The cross-sectional area of ​​the suction duct (201) is less than or equal to 500 mm². 2 .

6. The cleaning equipment according to any one of claims 2-5, characterized in that, The suction duct (201) extends along the height direction of the main unit (200), and the air inlet of the suction duct (201) is located at the bottom of the main unit (200).

7. The cleaning equipment according to any one of claims 2-5, characterized in that, The cross section of the suction duct (201) has a first extension section (202) on both sides in a first direction, and the first extension section (202) extends in a straight line; the cross section of the suction duct (201) has a second extension section (203) on both sides in a second direction, and the second extension section (203) extends in an arc.

8. The cleaning equipment according to any one of claims 2-5, characterized in that, The main unit (200) includes a body (210) and a blower (220). The sewage tank (230) and the blower (220) are disposed in the body (210). The sewage suction duct (201) includes a first duct (201a) and a second duct (201b). The first duct (201a) is disposed in the body (210), and the second duct (201b) is disposed in the sewage tank (230). The air inlet end of the first duct (201a) is connected to the hose (300), the air outlet end of the first duct (201a) is connected to the air inlet end of the second duct (201b), and the air outlet end of the second duct (201b) is connected to the air inlet section of the blower (220).

9. The cleaning equipment according to claim 8, characterized in that, The wastewater tank (230) is located above the first air duct (201a), and the second air duct (201b) and the first air duct (201a) extend in the same direction.

10. The cleaning equipment according to claim 8, characterized in that, The sewage tank (230) is detachably connected to the body (210); a sealing element is provided on one of the air outlet end of the first air duct (201a) and the air inlet end of the second air duct (201b); when the sewage tank (230) is installed on the body (210), the sealing element abuts between the air outlet end of the first air duct (201a) and the air inlet end of the second air duct (201b), and is arranged circumferentially around the first air duct (201a) and the second air duct (201b).

11. The cleaning equipment according to any one of claims 1-5, characterized in that, The cross-sectional shape of the hose (300) is circular; or the aspect ratio of the cross-section of the hose (300) is greater than 1.

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