Cleaning device

Abstract

The utility model provides cleaning equipment which comprises an equipment body, a rolling brush assembly, a sewage tank and an air suction assembly, the rolling brush assembly is rotationally arranged on the equipment body, and the sewage tank is arranged on the equipment body; the equipment main body is provided with a first suction inlet and a second suction inlet, the first suction inlet and the second suction inlet are both communicated with the sewage tank, and the air suction assembly is configured to enable the sewage tank to generate negative pressure; in the cleaning direction of the cleaning equipment, the first suction inlet is located in the rear side of the rolling brush assembly, and the second suction inlet is located in the front side of the rolling brush assembly. The second suction inlet is movably arranged relative to the equipment body so that the distance between the second suction inlet and the to-be-cleaned face can be adjusted in the cleaning process of the cleaning equipment. The cleaning equipment is provided with a plurality of suction inlets, water spots can be prevented from splashing, and the water spots on the surface to be cleaned can be effectively improved.

Description

Technical Field

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

[0002] Floor scrubbers, vacuum cleaners, and robotic vacuum cleaners are common household cleaning equipment. They can wet and scrub surfaces to remove dirt and stains, and collect dust, hair, debris, and water stains, ensuring the floor dries quickly.

[0003] Currently, to avoid the odor caused by the roller cloth absorbing sewage and not being cleaned and dried in time, a roller brush design without roller cloth can be adopted. After the ground is wetted, the roller brush made of soft rubber can be used to scrub the ground, and the water stains can be absorbed through the air intake.

[0004] However, roller brushes without a cloth do not have the function of absorbing and retaining water. During the cleaning process, water will be splashed out, and the surface to be cleaned will have poor water stains. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a cleaning device with multiple suction ports to prevent water splashing and effectively improve the water stains on the surface to be cleaned.

[0006] This application provides a cleaning device, including a device body, a roller brush assembly, a wastewater tank, and a suction assembly. The roller brush assembly is rotatably mounted on the device body, and the wastewater tank is mounted on the device body. The device body is provided with a first suction port and a second suction port, both of which are connected to the wastewater tank. The suction assembly is configured to generate negative pressure in the wastewater tank.

[0007] Along the cleaning direction of the cleaning equipment, the first suction port is located on the rear side of the roller brush assembly, and the second suction port is located on the front side of the roller brush assembly; the second suction port is movably set relative to the main body of the equipment so that the distance between the second suction port and the surface to be cleaned can be adjusted during the cleaning process.

[0008] The cleaning device provided in this application has suction ports connected to a wastewater tank on both the front and rear sides of the roller brush assembly. The two suction ports can generate suction through a suction assembly connected to the wastewater tank, so that at least one suction port can absorb water stains on the ground when the cleaning device moves forward or backward. The second suction port can move relative to the surface to be cleaned, which can block water stains thrown out when the roller brush rotates and prevent water stains from splashing into the surrounding environment from the side where the second suction port is located.

[0009] As an optional implementation, the second suction inlet is vertically raised or lowered relative to the main body of the device.

[0010] When the cleaning equipment moves forward in the cleaning direction, the second suction port rises relative to the main body of the equipment and moves away from the surface to be cleaned; when the cleaning equipment moves backward in the cleaning direction, the second suction port descends relative to the main body of the equipment and moves closer to the surface to be cleaned.

[0011] This design prevents water from splashing into the surrounding environment from the side where the second suction inlet is located, effectively reducing water stains on the surface to be cleaned.

[0012] As an optional implementation, the cleaning device also includes a drive unit and a drive component. The drive unit is disposed on the main body of the device, and the output end of the drive component and the drive unit are connected. The drive component is connected to a second suction port, and the drive unit is configured to drive the second suction port to rise or fall relative to the main body of the device via the drive component.

[0013] This configuration reduces manual intervention and improves cleaning efficiency by coordinating the drive unit and drive components.

[0014] As an optional implementation, the drive unit includes a roller rotatably mounted on the main body of the device. The drive components include a gear and a rack, which mesh with each other. The gear is coaxially connected to the roller, and the rack is connected to the second intake port.

[0015] This configuration, through gear transmission, ensures that the second suction inlet can rise and fall within a certain range, improving the accuracy and stability of the transmission.

[0016] As an optional implementation, the first suction port extends axially along the roller brush assembly and its length matches the axial length of the roller brush assembly; and / or, the second suction port extends axially along the roller brush assembly and its length matches the axial length of the roller brush assembly.

[0017] With this configuration, the first and second suction ports can cover the entire cleaning area of ​​the roller brush, improving cleaning quality.

[0018] As an optional implementation, the cross-sectional width of the first inlet and the second inlet is 0~10mm.

[0019] This design restricts the first and second suction inlets to flat shapes, which can increase suction power and improve cleaning efficiency without increasing power.

[0020] As an alternative implementation, the wastewater tank is located behind the roller brush assembly along the cleaning direction of the cleaning equipment.

[0021] The cleaning equipment also includes a suction duct, one end of which is connected to a wastewater tank and the other end is connected to a second suction inlet.

[0022] With this configuration, the suction assembly can provide suction to the second suction inlet through the wastewater tank and suction duct, eliminating the need for an additional wastewater tank and suction unit, thus improving the compactness of the equipment components.

[0023] As an optional implementation, the sewage tank has a first sewage chamber and a second sewage chamber; the suction assembly includes a first suction unit and a second suction unit, the first suction unit is connected to the first sewage chamber and the first sewage chamber is connected to a first suction inlet; the second suction unit is connected to the second sewage chamber and the second sewage chamber is connected to a second suction inlet.

[0024] This setup allows for independent control of the first and second suction inlets, improving cleaning efficiency.

[0025] As an optional implementation, the main body of the device is provided with a particle channel, the particle channel and the first suction port are located on the same side of the roller brush assembly, and the main body of the device has a collection chamber, the particle channel and the collection chamber are connected.

[0026] The particle channel is positioned vertically higher than the first and second inlet ports; the cross-sectional width of the particle channel is greater than that of the first and second inlet ports.

[0027] This configuration allows for the collection of large particles that cannot be drawn in through the first and second suction ports via the particle channel, thus improving cleaning quality.

[0028] As an optional implementation, the collection chamber is located above the sewage tank, and the bottom plate of the collection chamber has a drainage hole, through which the collection chamber communicates with the sewage tank.

[0029] With this design, the wastewater in the collection chamber can flow to the wastewater tank through the drain hole, achieving solid-liquid separation and facilitating subsequent waste disposal.

[0030] As an optional implementation, the bottom plate of the collection chamber is inclined downward from the side of the collection chamber near the roller brush assembly to the side of the collection chamber away from the roller brush assembly.

[0031] With this design, large particles will not accumulate or block the particle channel after entering the collection chamber, and the sewage can flow to the drain hole under the action of gravity.

[0032] As an optional implementation, a scraper is provided along the upper edge of the particle channel; the outer surface of the roller brush assembly has a flexible cleaning part, which is at a certain angle to the scraper, and when the roller brush assembly rotates, the flexible cleaning part and the scraper make interference contact.

[0033] With this design, the scraper can remove particles attached to the flexible cleaning part, allowing the particles to enter the particle channel and improving cleaning efficiency.

[0034] As an alternative implementation, the suction assembly can generate negative pressure suction on the collection chamber.

[0035] With this configuration, the negative pressure suction generated by the suction component allows particulate matter to flow into the collection chamber more quickly, reducing the risk of blockage.

[0036] As an optional implementation, a protrusion is provided on the bottom of the sewage tank near the first suction port, the protrusion being used to prevent sewage backflow.

[0037] With this design, when the first suction inlet stops drawing air, the protrusion can prevent sewage from flowing back.

[0038] This application provides a cleaning device, including a device body, a roller brush assembly, a wastewater tank, and a suction assembly. The roller brush assembly is rotatably mounted on the device body, and the wastewater tank is mounted on the device body. The device body has a first suction port and a second suction port, both of which are connected to the wastewater tank. The suction assembly is configured to create negative pressure in the wastewater tank. Along the cleaning direction of the cleaning device, the first suction port is located behind the roller brush assembly, and the second suction port is located in front of the roller brush assembly. The second suction port is movably mounted relative to the device body, allowing adjustment of the distance between the second suction port and the surface to be cleaned during the cleaning process. This application provides a cleaning device with multiple suction ports, which can prevent water splashing and effectively reduce water stains on the surface to be cleaned. Attached Figure Description

[0039] 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.

[0040] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application when it moves along the cleaning direction;

[0041] Figure 2 This is a schematic diagram of the structure of the cleaning device provided in this application when it retracts along the cleaning direction;

[0042] Figure 3 A schematic diagram of the second suction port transmission of the cleaning device provided in this application embodiment when it moves forward along the cleaning direction;

[0043] Figure 4 A schematic diagram of the second suction port transmission when the cleaning device provided in this application moves backward along the cleaning direction.

[0044] Explanation of reference numerals in the attached figures:

[0045] 10- Cleaning equipment;

[0046] 100 - Main body of the equipment; 110 - Roller brush assembly; 111 - Flexible cleaning section; 120 - Wastewater tank; 130 - Suction assembly; 140 - First suction inlet; 150 - Second suction inlet; 151 - Rack; 160 - Drive unit; 170 - Drive component; 180 - Suction duct; 190 - Particle channel; 191 - Scraper component; 200 - Collection chamber; 201 - Base plate; 202 - Drain hole; 210 - Protrusion. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions 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.

[0048] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate. For example, without departing from the scope of this document, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0049] Depending on the context, the word "if" as used here can be interpreted as "when," "when," or "in response to determination."

[0050] Furthermore, as used herein, the singular forms “a,” “one,” and “the” are intended to also include the plural forms, unless the context indicates otherwise.

[0051] It should be further understood that the terms “comprising” or “including” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups.

[0052] The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Therefore, “A, B, and / or C” means “any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0053] Floor scrubbers, vacuum cleaners, and robotic vacuum cleaners are common household cleaning devices. They wet and scrub surfaces to remove dirt and stains, and collect dust, hair, debris, and water, ensuring the floor dries quickly. To prevent odors, some cleaning devices now use clothless roller brushes as scrubbing tools and suck up debris and water through air vents.

[0054] However, roller brushes without a cloth do not have the function of absorbing and retaining water. During the cleaning process, water will be splashed out, and the surface to be cleaned will have poor water stains after cleaning.

[0055] To solve the above-mentioned technical problems, this application provides a cleaning device with multiple suction ports to prevent water splashing and effectively improve the water stains on the surface to be cleaned.

[0056] The following is an example illustrating the application scenarios of the cleaning equipment provided in the embodiments of this application.

[0057] The cleaning equipment provided in this application embodiment is a commonly used household cleaning equipment. Specifically, the product types of the cleaning equipment in this application embodiment may include, but are not limited to, floor scrubbers, vacuum cleaners, robot vacuum cleaners, etc. This application embodiment does not make specific limitations in this regard.

[0058] Figure 1 This is a schematic diagram of the structure of the cleaning equipment provided in the embodiments of this application when it moves along the cleaning direction; Figure 2 This is a schematic diagram of the structure of the cleaning device provided in this application when it retracts along the cleaning direction; Figure 3 A schematic diagram of the second suction port transmission of the cleaning device provided in this application embodiment when it moves forward along the cleaning direction; Figure 4 A schematic diagram of the second suction port transmission when the cleaning device provided in this application moves backward along the cleaning direction.

[0059] like Figure 1 This application provides a cleaning device 10, including a device body 100, a roller brush assembly 110, a wastewater tank 120, and a suction assembly 130. The roller brush assembly 110 is rotatably disposed on the device body 100, and the wastewater tank 120 is disposed on the device body 100. The device body 100 is provided with a first suction port 140 and a second suction port 150, both of which are connected to the wastewater tank 120. The suction assembly 130 is configured to generate negative pressure in the wastewater tank 120.

[0060] Along the cleaning direction of the cleaning device 10, the first suction port 140 is located on the rear side of the roller brush assembly 110, and the second suction port 150 is located on the front side of the roller brush assembly 110; the second suction port 150 is movably arranged relative to the main body 100 of the device so that the distance between the second suction port 150 and the surface to be cleaned can be adjusted during the cleaning process of the cleaning device 10.

[0061] It is understood that the main body 100 is the structural support of the cleaning equipment 10, used to support other components; the roller brush assembly 110 is rotatably mounted on the main body 100, and the rotation of the roller brush can scrub the surface to be cleaned; the wastewater tank 120 sucks the wastewater and debris generated during the cleaning process into the tank through the negative pressure generated by the suction assembly 130, and is used to collect and store wastewater and debris; the first suction port 140 and the second suction port 150, which are connected to the wastewater tank 120, are located on the rear and front sides of the roller brush assembly 110 along the cleaning direction, respectively, and can suck in water stains in the corresponding direction when the cleaning equipment 10 moves forward or backward.

[0062] The second suction port 150 is movably disposed on the main body 100 of the device. The distance between the second suction port 150 and the surface to be cleaned is adjustable, so that when the cleaning device 10 moves in a certain direction, the distance between the second suction port 150 and the surface to be cleaned increases to allow large particles of debris to pass through; when the cleaning device 10 moves in another direction, the distance between the second suction port 150 and the surface to be cleaned decreases to prevent water from splashing into the surrounding environment due to the excessive rotation of the roller brush assembly 110.

[0063] As an optional implementation, the second suction port 150 is vertically raised and lowered relative to the main body 100 of the device.

[0064] When the cleaning device 10 moves forward in the cleaning direction, the second suction port 150 rises relative to the main body 100 and moves away from the surface to be cleaned; when the cleaning device 10 moves backward in the cleaning direction, the second suction port 150 falls relative to the main body 100 and moves closer to the surface to be cleaned.

[0065] It is understood that the second suction port 150 is vertically raised and lowered relative to the main body 100 of the equipment to adjust the distance between the second suction port 150 and the surface to be cleaned. The raising and lowering can be achieved by mechanical structures such as gears, springs, or electric adjustment mechanisms, and can automatically adjust the distance between the second suction port 150 and the surface to be cleaned according to the forward or backward movement of the cleaning equipment 10.

[0066] When the cleaning device 10 moves forward in the cleaning direction, the water splashed by the rotating roller brush assembly 110 is mainly sprayed towards the first suction port 140, and the water is sucked in by the first suction port 140. The second suction port 150 rises relative to the main body 100 and moves away from the surface to be cleaned. Large particles of debris in front of the cleaning device 10 can pass smoothly through the gap between the second suction port 150 and the surface to be cleaned, and are rolled up and collected by the roller brush assembly 110. When the cleaning device 10 moves backward in the cleaning direction, the water splashed by the rotating roller brush assembly 110 is mainly sprayed towards the second suction port 150, and the second suction port 150 descends relative to the main body 100 and moves closer to the surface to be cleaned, blocking the water from splashing into the surrounding environment and sucking in the water.

[0067] As an optional implementation, the cleaning device 10 also includes a drive unit 160 and a drive member 170. The drive unit 160 is disposed on the device body 100, and the drive member 170 is connected to the output end of the drive unit 160. The drive member 170 is connected to the second suction port 150, and the drive unit 160 is configured to drive the second suction port 150 to rise or fall relative to the device body 100 through the drive member 170.

[0068] Understandably, the drive unit 160 is located on the main body 100 of the device and serves as a power source to control the lifting and lowering of the second suction port 150. The drive unit 160 can be electrically driven or mechanically driven. The drive component 170 serves as an intermediate component connecting the output end of the drive unit 160 and the second suction port 150. It can transmit the power generated by the drive unit 160 to the second suction port 150, thereby controlling the movement of the second suction port 150. The drive component 170 can be a gear, connecting rod, belt, etc.

[0069] As an optional implementation, the drive unit 160 includes a roller rotatably mounted on the device body 100, and the drive component 170 includes a gear and a rack 151 meshing together. The gear is coaxially connected to the roller, and the rack 151 is connected to the second suction port 150.

[0070] It is understandable that when the cleaning device 10 moves, the roller rotates, which drives the gear to rotate. The gear meshes with the rack 151. The rack 151 is vertically set on the side wall of the pipe of the second suction port 150 relative to the main body of the device 100. The rotation of the gear drives the rack 151 to rise or fall, thereby causing the second suction port 150 to rise or fall.

[0071] For example, the roller is provided with a rotating shaft, and the gear is provided with a rotating shaft hole. The rotating shaft and the rotating shaft hole are interference-fitted. When the cleaning device 10 moves, since the torque of the roller is greater than the torque of the rotating shaft, the roller drives the gear to rotate. The gear drives the second suction port 150 to rise or fall through the rack 151.

[0072] As an alternative implementation, the first suction port 140 extends axially along the roller brush assembly 110 and its length matches the axial length of the roller brush assembly 110; and / or, the second suction port 150 extends axially along the roller brush assembly 110 and its length matches the axial length of the roller brush assembly 110.

[0073] It is understandable that when the lengths of the first suction port 140 and the second suction port 150 are matched with the axial length of the roller brush assembly 110, it can be ensured that the suction of the first suction port 140 and the second suction port 150 covers the entire working area of ​​the roller brush assembly 110, avoiding omissions.

[0074] Optionally, only the length of either the first suction port 140 or the second suction port 150 may match the axial length of the roller brush assembly 110.

[0075] As an optional implementation, the cross-sectional width of the first inlet 140 and the second inlet 150 is 0~10mm.

[0076] It is understandable that by limiting the cross-sectional width of the first suction port 140 and the second suction port 150, the cross-sectional dimensions of the first suction port 140 and the second suction port 150 can be limited. When the suction power of the cleaning device 10 is constant, the smaller the cross-sectional dimensions of the first suction port 140 and the second suction port 150, the greater the suction force and the better the absorption effect of water stains on the surface to be cleaned. When the cross-sectional width of the first suction port 140 and the second suction port 150 is 0~10mm, the first suction port 140 and the second suction port 150 are flat suction ports, and suction components with small air volume such as air pumps can be used instead of vacuum motors, which can significantly reduce costs while ensuring suction effect.

[0077] Preferably, the cross-sectional width of the first suction port 140 and the second suction port 150 can be limited to 0.5~1.5mm, so that water can pass smoothly through the suction port cross-section while ensuring suction power.

[0078] As an alternative implementation, the wastewater tank 120 is located on the rear side of the roller brush assembly 110 along the cleaning direction of the cleaning device 10.

[0079] The cleaning equipment 10 also includes a suction duct 180, one end of which is connected to the sewage tank 120 and the other end is connected to the second suction port 150.

[0080] Understandably, the wastewater tank 120 is located on the rear side of the roller brush assembly 110 along the cleaning direction of the cleaning device 10 to help balance the overall weight of the device and improve operational stability. The suction duct 180 connects the wastewater tank 120 and the second suction inlet 150, which can transmit negative pressure suction and transfer water stains.

[0081] As an optional implementation, the sewage tank 120 has a first sewage chamber and a second sewage chamber; the suction assembly 130 includes a first suction unit and a second suction unit, the first suction unit is connected to the first sewage chamber and the first sewage chamber is connected to the first suction port 140; the second suction unit is connected to the second sewage chamber and the second sewage chamber is connected to the second suction port 150.

[0082] It is understandable that the sewage tank 120 is divided into two independent chambers, which are connected to the first suction port 140 and the second suction port 150 respectively, and are connected to independent suction units. The first suction port 140 and the second suction port 150 can be controlled separately according to different water stain conditions.

[0083] For example, when the cleaning device 10 moves forward in the cleaning direction, it needs to suck in more water stains. The volume of the first sewage chamber can be appropriately increased and the volume of the second sewage chamber can be reduced. The first suction unit and the second suction unit can be controlled to start and stop according to the forward and backward movements of the cleaning device 10, which can save electricity costs. Furthermore, the first suction unit and the second suction unit can be selected with a smaller power air pump or vacuum motor.

[0084] As an optional implementation, the device body 100 is provided with a particle channel 190, which is located on the same side of the roller brush assembly 110 as the first suction port 140. The device body 100 has a collection chamber 200, and the particle channel 190 communicates with the collection chamber 200.

[0085] The particle channel 190 is positioned vertically higher than the first inlet 140 and the second inlet 150; the cross-sectional width of the particle channel 190 is greater than that of the first inlet 140 and the second inlet 150.

[0086] It is understood that the particle channel 190 and the first suction port 140 are located on the same side of the roller brush assembly 110. When the cleaning device 10 moves forward, the roller brush picks up debris and water stains from the ground. The debris first passes through the first suction port 140, which is lower in the vertical direction. The first suction port 140 can suck up water stains, dust and small particles. The roller brush continues to rotate and sends large particles into the particle channel 190, which is higher in the vertical direction. The large particles enter the collection chamber 200 through the particle channel 190.

[0087] As an optional implementation, the collection chamber 200 is located above the sewage tank 120, and the bottom plate 201 of the collection chamber 200 has a drainage hole 202, through which the collection chamber 200 communicates with the sewage tank 120.

[0088] It is understandable that some large particles may carry moisture or oil when entering the collection chamber 200. By setting a drain hole 202 on the bottom plate 201 of the collection chamber 200, the sewage or oil can flow into the sewage tank 120 to achieve solid-liquid separation and facilitate subsequent cleaning. The drain hole 202 can be set as a long strip, with a length consistent with the length of the particle channel 190, to facilitate the collection of sewage and oil. The drain hole 202 can be set at a position on the bottom plate 201 of the collection chamber 200 away from the particle channel 190 to facilitate the collection of sewage and oil.

[0089] As an optional implementation, the bottom plate 201 of the collection chamber 200 is inclined downward from the side of the collection chamber 200 near the roller brush assembly 110 to the side of the collection chamber 200 away from the roller brush assembly 110.

[0090] It is understandable that the bottom plate 201 of the collection chamber 200 is inclined, which on the one hand facilitates the rolling of particulate matter away from the particulate channel 190 to prevent blockage, and on the other hand facilitates the flow of sewage and oil stains to the drain hole 202 to achieve solid-liquid separation.

[0091] As an optional implementation, a scraper 191 is provided along the upper edge of the particle channel 190; the outer surface of the roller brush assembly 110 has a flexible cleaning part 111, which is at a certain angle to the scraper 191. When the roller brush assembly 110 rotates, the flexible cleaning part 111 and the scraper 191 are in interference contact.

[0092] It is understood that by providing a scraper 191 at the top of the particle channel 190, particulate debris rolled up by the flexible cleaning section 111 can be scraped into the particle channel 190 without the particle channel 190 being connected to a negative pressure source. Some wet or sticky debris will adhere to the flexible cleaning section 111, and such debris can be scraped into the particle channel 190 by the scraper 191.

[0093] As an alternative implementation, the suction assembly 130 can generate negative pressure suction on the collection chamber 200.

[0094] Optionally, the collection chamber 200 can be connected to the suction assembly 130 to more efficiently suck up particulate matter. The suction assembly 130 can be connected to the side of the collection chamber 200 away from the particulate channel 190 to prevent the particulate channel 190 from being blocked.

[0095] As an optional implementation, a protrusion 210 is provided on the bottom of the sewage tank 120 near the first suction port 140, and the protrusion 210 is used to prevent sewage backflow.

[0096] Understandably, if the suction assembly 130 connected to the first suction port 140 is in a non-suction state, the sewage in the sewage tank 120 may flow out from the first suction port 140. By providing the protrusion 210, the sewage backflow can be effectively blocked. The length of the protrusion 210 matches the length of the first suction port 140. A smooth slope can be provided on the side of the protrusion 210 near the first suction port 140 to guide the sewage, and a steep slope can be provided on the side of the protrusion 210 away from the first suction port 140 to prevent sewage backflow.

[0097] This application provides a cleaning device 10, including a device body 100, a roller brush assembly 110, a wastewater tank 120, and a suction assembly 130. The roller brush assembly 110 is rotatably mounted on the device body 100, and the wastewater tank 120 is mounted on the device body 100. The device body 100 is provided with a first suction port 140 and a second suction port 150, both of which are connected to the wastewater tank 120. The suction assembly 130 is configured to generate negative pressure in the wastewater tank 120. Along the cleaning direction of the cleaning device 10, the first suction port 140 is located behind the roller brush assembly 110, and the second suction port 150 is located in front of the roller brush assembly 110. The second suction port 150 is movably mounted relative to the device body 100, allowing adjustment of the distance between the second suction port 150 and the surface to be cleaned during the cleaning process. This application provides a cleaning device 10 with multiple suction ports, which can prevent water splashing and effectively improve the water stain situation on the surface to be cleaned.

[0098] 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 apparatus (10) characterized by, The cleaning device (10) comprises a device body (100), a rolling brush assembly (110), a sewage tank (120) and an air suction assembly (130), the rolling brush assembly (110) is rotationally arranged on the device body (100), and the sewage tank (120) is arranged on the device body (100); the device body (100) is provided with a first suction inlet (140) and a second suction inlet (150), the first suction inlet (140) and the second suction inlet (150) are both in communication with the sewage tank (120), and the air suction assembly (130) is configured to generate negative pressure in the sewage tank (120); Along the cleaning direction of the cleaning device (10), the first suction inlet (140) is located at the rear side of the rolling brush assembly (110), and the second suction inlet (150) is located at the front side of the rolling brush assembly (110); the second suction inlet (150) is movably arranged relative to the device body (100), so that the distance between the second suction inlet (150) and the surface to be cleaned can be adjusted during the cleaning process of the cleaning device (10).

2. The cleaning device (10) according to claim 1, characterized in that The second suction inlet (150) is arranged in a vertical lifting manner relative to the device body (100); When the cleaning device (10) advances along the cleaning direction, the second suction inlet (150) rises relative to the device body (100) and moves away from the surface to be cleaned; when the cleaning device (10) retreats along the cleaning direction, the second suction inlet (150) descends relative to the device body (100) and approaches the surface to be cleaned.

3. The cleaning device (10) according to claim 2, characterized in that Further comprising a driving unit (160) and a driving member (170), the driving unit (160) is arranged on the device body (100), the driving member (170) is connected with the output end of the driving unit (160), the driving member (170) is connected with the second suction inlet (150), and the driving unit (160) is configured to drive the second suction inlet (150) to rise or descend relative to the device body (100) through the driving member (170).

4. The cleaning device (10) according to claim 3, characterized in that The driving unit (160) comprises a roller rotationally arranged on the device body (100), the driving member (170) comprises a gear and a rack (151), the gear is coaxially connected with the roller, the gear is engaged with the rack (151), and the rack (151) is connected with the second suction inlet (150).

5. The cleaning apparatus (10) according to claim 1, characterized in that The first suction inlet (140) extends in the axial direction of the rolling brush assembly (110) and has a length matching the axial length of the rolling brush assembly (110); and / or the second suction inlet (150) extends in the axial direction of the rolling brush assembly (110) and has a length matching the axial length of the rolling brush assembly (110).

6. The cleaning device (10) according to claim 5, characterized in that The cross-sectional width of the first suction inlet (140) and the second suction inlet (150) is 0-10 mm.

7. The cleaning apparatus (10) according to claim 1, characterized in that The sewage tank (120) is arranged at the rear side of the rolling brush assembly (110) along the cleaning direction of the cleaning device (10); The cleaning device (10) further comprises an air suction pipe (180) in communication with the sewage tank (120) at one end and the second suction inlet (150) at the other end.

8. The cleaning device (10) according to claim 7, characterized in that The sewage tank (120) has a first sewage cavity and a second sewage cavity; the air suction assembly (130) comprises a first air suction unit and a second air suction unit, the first air suction unit is in communication with the first sewage cavity, and the first sewage cavity is in communication with the first suction inlet (140); the second air suction unit is in communication with the second sewage cavity, and the second sewage cavity is in communication with the second suction inlet (150).

9. The cleaning device (10) according to any one of claims 1-8, characterized in that, The device body (100) is provided with a particle channel (190) located on the same side of the rolling brush assembly (110) as the first suction inlet (140), and has a collection cavity (200) in communication with the particle channel (190). The particle channel (190) is located higher than the first suction inlet (140) and the second suction inlet (150) in the vertical direction, and the cross-sectional width dimension of the particle channel (190) is greater than that of the first suction inlet (140) and the second suction inlet (150).

10. The cleaning device (10) according to claim 9, characterized in that The collection cavity (200) is located above the sewage tank (120), and the bottom plate (201) of the collection cavity (200) has a water leakage hole (202) in communication with the sewage tank (120).

11. The cleaning device (10) according to claim 10, characterized in that The bottom plate (201) of the collection cavity (200) is inclined downward from the side of the collection cavity (200) close to the rolling brush assembly (110) to the side of the collection cavity (200) away from the rolling brush assembly (110).

12. The cleaning device (10) according to claim 11, characterized in that A scraping member (191) is arranged on the particle channel (190); the outer surface of the rolling brush assembly (110) has a flexible cleaning part (111), the flexible cleaning part (111) is at an angle with the scraping member (191), and the flexible cleaning part (111) is in interference contact with the scraping member (191) when the rolling brush assembly (110) rotates.

13. The cleaning device (10) according to claim 12, characterized in that The air suction assembly (130) can generate a negative pressure suction force on the collection cavity (200).

14. The cleaning apparatus (10) according to claim 1, characterized in that The sewage tank (120) is provided with a protruding part (210) close to the side of the first suction inlet (140), and the protruding part (210) is used for blocking the backflow of sewage.

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