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 shell assembly and a rolling brush; the shell assembly is provided with a rolling brush cavity and an air suction channel, the air suction channel is communicated with the rolling brush cavity; the rolling brush cavity is open towards the lower part of the shell assembly, and the rolling brush is rotationally arranged in the rolling brush cavity; the lower surface of the shell assembly is provided with a convex structure; when the cleaning device cleans a cleaned surface, the lower surface of the shell assembly faces the cleaned surface, the convex structure is in contact with the cleaned surface, so that at least part of the area of the lower surface of the shell assembly has a spacing from the cleaned surface, and the spacing between the lower surface of the shell assembly and the cleaned surface can improve the air suction efficiency, so that dust and hair can be quickly sucked in.

Description

Technical Field

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

[0002] Vacuum cleaners, floor scrubbers, mite removers and other cleaning equipment are widely used for environmental cleaning in various indoor and outdoor scenarios. Different cleaning equipment maintains a clean and tidy living and working environment through various functions such as vacuuming and mopping.

[0003] In related technologies, cleaning equipment typically uses roller brushes to scrub or pat the surface to be cleaned, and sucks in dust, hair and other debris through air vents to clean the surface.

[0004] However, cleaning equipment, relying solely on suction and roller brushes, is insufficient to remove hair from surfaces being cleaned, resulting in incomplete cleaning. Utility Model Content

[0005] This application provides a cleaning device to solve the technical problem that current cleaning devices, which rely solely on suction and roller brushes, are unable to remove hair from surfaces being cleaned thoroughly, resulting in incomplete cleaning.

[0006] This application provides a cleaning device, which includes a housing assembly and a roller brush; the housing assembly has a roller brush cavity and a suction channel, the suction channel being connected to the roller brush cavity; the roller brush cavity is open towards the lower part of the housing assembly, and the roller brush is rotatably disposed in the roller brush cavity;

[0007] The lower surface of the housing assembly has a raised structure; when the cleaning equipment cleans the surface to be cleaned, the lower surface of the housing assembly faces the surface to be cleaned, and the raised structure contacts the surface to be cleaned, so that at least a portion of the lower surface of the housing assembly has a gap with the surface to be cleaned.

[0008] The cleaning device provided in this application cleans the surface to be cleaned by a roller brush. Since the roller brush chamber is connected to the suction channel, the suction channel can suck up the garbage and debris on the surface to be cleaned through the roller brush chamber, thereby cleaning the surface. The lower surface of the housing component is provided with a protruding structure, which makes the cleaning device and the surface to be cleaned have a certain distance, ensuring that dust and hair can be sucked up quickly.

[0009] As an optional implementation, the raised structure includes multiple protrusions, which are spaced apart; when the raised structure comes into contact with the surface being cleaned, a ventilation channel is formed between adjacent protrusions.

[0010] With this setup, dust and hair can be quickly drawn in through the ventilation channel during suction, improving cleaning efficiency.

[0011] As an alternative implementation, at least a portion of the plurality of bosses are arranged along the open edge of the brush cavity.

[0012] With this configuration, the ventilation channel can extend to the open edge of the roller brush chamber, allowing dust and hair to enter the suction channel through the roller brush chamber.

[0013] As an alternative implementation, the roller brush chamber is located near the front end of the housing assembly along the cleaning direction of the cleaning device; multiple bosses are located on the rear side of the opening of the roller brush chamber.

[0014] This setup allows the roller brush to sweep and beat the surface being cleaned, making it easier to suck in dust and hair and improving cleaning efficiency.

[0015] As an alternative implementation, along the length of the brush cavity, multiple protrusions are arranged sequentially at intervals from one end to the other along the open edge of the brush cavity.

[0016] This design allows multiple ventilation channels to connect to the brush chamber at different locations along its length, improving cleaning efficiency.

[0017] As an optional implementation, the housing assembly includes an upper housing, a lower housing, and a base plate. The upper housing is connected above the lower housing, the opening of the brush chamber is located in the lower housing, and the base plate covers the opening of the brush chamber. At least one of the base plate and the lower housing is provided with a protruding structure.

[0018] This design, by incorporating a raised structure in at least one of the base plate and the lower housing, can improve ventilation efficiency.

[0019] As an alternative implementation, the base plate includes a frame and reinforcing ribs. The frame is disposed around the open edge of the brush cavity, and the two ends of the reinforcing ribs are respectively connected to the opposite sides of the frame. The protruding structure is at least partially disposed on the frame.

[0020] This design, with its reinforcing ribs, enhances the structural stability of the base plate.

[0021] As an alternative implementation, the base plate and the lower housing are detachably connected, or the base plate and the lower housing are integrally formed.

[0022] This design allows for detachable connection between the base plate and the lower housing, facilitating maintenance and flexible adaptation. The one-piece molding enhances structural strength and sealing. Both methods can be flexibly selected according to requirements.

[0023] As an optional implementation, along the cleaning direction of the cleaning equipment, the front edge of the base plate is provided with a plurality of spaced ventilation holes, the axial direction of the ventilation holes having an angle with the vertical direction.

[0024] This design, by disrupting the airflow at the brush cavity opening through the ventilation holes, can prevent hair from getting tangled in the brush.

[0025] As an alternative implementation, the cross-section of the ventilation hole is a closed annulus; or, the radial side of the ventilation hole communicates with the opening of the brush chamber.

[0026] This design increases the ventilation area and improves ventilation efficiency through the ventilation holes.

[0027] As an alternative implementation, the front side of the base plate has an arcuate surface that curves upward from the open edge, and ventilation holes are provided on the arcuate surface.

[0028] With this design, dust and hair on the front of the cleaning device can enter the roller brush chamber through the ventilation holes, reducing the chance of hair getting tangled in the roller brush.

[0029] This application provides a cleaning device, including a housing assembly and a roller brush; the housing assembly has a roller brush cavity and a suction channel, the suction channel communicating with the roller brush cavity; the roller brush cavity is open facing downwards from the housing assembly, and the roller brush is rotatably disposed within the roller brush cavity; the lower surface of the housing assembly has a protruding structure; when the cleaning device cleans the surface to be cleaned, the lower surface of the housing assembly faces the surface to be cleaned, and the protruding structure contacts the surface to be cleaned, so that at least a portion of the lower surface of the housing assembly has a gap with the surface to be cleaned, the gap between the lower surface of the housing assembly and the surface to be cleaned can improve suction efficiency, allowing dust and hair to be quickly sucked in.

[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 schematic diagram of the cleaning equipment provided in the embodiments of this application;

[0033] Figure 2 A top view of the base plate provided in an embodiment of this application;

[0034] Figure 3 A bottom view of the base plate provided in an embodiment of this application;

[0035] Figure 4A schematic diagram showing the lower housing of the cleaning device provided in this application having a protruding structure;

[0036] Figure 5 A side sectional view of the cleaning equipment provided in an embodiment of this application.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10- Cleaning equipment;

[0039] 100 - Housing assembly; 110 - Brush chamber; 120 - Air intake channel; 121 - Air inlet; 130 - Protruding structure; 131 - Boss; 132 - Ventilation channel; 133 - First ventilation slot; 134 - Second ventilation slot; 140 - Upper housing; 150 - Lower housing; 160 - Base plate; 161 - Frame; 162 - Reinforcing rib; 163 - Ventilation hole; 164 - Curved surface;

[0040] 200-Roller brush. Detailed Implementation

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] Vacuum cleaners, floor scrubbers, mite removers and other cleaning equipment are widely used for environmental cleaning in various indoor and outdoor scenarios. Different cleaning equipment maintains a clean and tidy living and working environment through various functions such as vacuuming and mopping.

[0047] In related technologies, cleaning equipment typically uses roller brushes to scrub or pat the surface to be cleaned, and sucks in dust, hair and other debris through air vents to clean the surface.

[0048] However, cleaning equipment cannot remove hair from the surface being cleaned by suction and roller brush alone, resulting in incomplete cleaning. Increasing the suction power will increase the overall power and noise of the machine.

[0049] To address the aforementioned technical problems, this application provides a cleaning device. The suction channel of this cleaning device is connected to the roller brush chamber. While the roller brush pats the surface to be cleaned, the suction channel can draw in dust, hair, and other debris from the surface through the roller brush chamber. The roller brush chamber is located within the housing assembly of the cleaning device. The lower surface of the housing assembly has a protruding structure, creating a gap between at least a portion of the lower surface of the housing assembly and the surface to be cleaned. This gap improves suction efficiency, allowing dust and hair to be quickly drawn in, thus enhancing the cleaning effect.

[0050] The following is an example illustrating the application scenarios of the cleaning equipment provided in the embodiments of this application.

[0051] The applicable product types provided in this application embodiment may include, but are not limited to, vacuum cleaners, mite removers, etc. Depending on the product type, the cleaning equipment provided in this application embodiment can be used to clean soft surfaces of various materials, such as sofas, carpets, etc. This application embodiment does not make specific limitations in this regard.

[0052] Figure 1 A schematic diagram of the cleaning equipment provided in the embodiments of this application; Figure 2 A top view of the base plate provided in an embodiment of this application; Figure 3 A bottom view of the base plate provided in an embodiment of this application; Figure 4 A schematic diagram showing the lower housing of the cleaning device provided in this application having a protruding structure; Figure 5 A side sectional view of the cleaning equipment provided in an embodiment of this application.

[0053] Reference Figures 1 to 5 As shown, this application provides a cleaning device 10, which includes a housing assembly 100 and a roller brush 200. The housing assembly 100 has a roller brush cavity 110 and a suction channel 120, which communicates with the roller brush cavity 110. The roller brush cavity 110 is open towards the lower part of the housing assembly 100, and the roller brush 200 is rotatably disposed in the roller brush cavity 110. The lower surface of the housing assembly 100 is provided with a protruding structure 130. When the cleaning device 10 cleans the surface to be cleaned, the lower surface of the housing assembly 100 faces the surface to be cleaned, and the protruding structure 130 contacts the surface to be cleaned, so that at least a portion of the lower surface of the housing assembly 100 has a gap with the surface to be cleaned.

[0054] It should be noted that the roller brush 200 has a striking part protruding from the roller brush cavity 110. When the cleaning device 10 performs cleaning work, the striking part of the roller brush 200 can strike the surface being cleaned, making it easier to separate dust, hair, and other debris from the surface being cleaned. The suction channel 120 has an air inlet 121, which is located on the inner wall of the roller brush cavity 110. The suction channel 120 is connected to the roller brush cavity 110 through the air inlet 121. The cleaning device 10 has a suction system inside. The unit is connected to the suction channel 120. When the suction unit is started, the suction channel 120 generates negative pressure suction, which causes the roller brush chamber 110 to also generate negative pressure suction. Under the action of negative pressure suction, the air around the cleaning device 10 flows to the roller brush chamber 110 and carries garbage and debris into the roller brush chamber 110. The garbage and debris carried by the airflow and the garbage and debris rolled up by the roller brush 200 enter the suction channel 120 through the air inlet 121 and finally enter the garbage collection device of the cleaning device 10.

[0055] It should be noted that the protruding structure 130 on the lower surface of the housing assembly 100 contacts the surface to be cleaned, which reduces the communication area between the roller brush chamber 110 and the surrounding environment of the cleaning device 10. This increases the suction force and airflow velocity of the roller brush chamber 110, making it easier to suck up dust, hair and other debris from the surface to be cleaned, thus improving cleaning efficiency.

[0056] As one possible implementation, the protrusion structure 130 includes a plurality of protrusions 131, which are spaced apart; when the protrusion structure 130 contacts the surface to be cleaned, a ventilation channel 132 is formed between adjacent protrusions 131.

[0057] Understandably, the raised structure 130 contacts the surface being cleaned via the boss 131, and gaps are formed between the lower surface of the housing assembly 100 and the surface being cleaned between adjacent bosses 131. These gaps form ventilation channels 132, through which airflow can enter the roller brush chamber 110. The ventilation channels 132 can optimize the airflow path, increase the airflow velocity, and improve suction efficiency.

[0058] It should be noted that at least a portion of the plurality of bosses 131 are arranged along the open edge of the brush cavity 110. The plurality of bosses 131 may be arranged along one side of the open edge of the brush cavity 110 or along multiple sides of the open edge of the brush cavity 110.

[0059] Some of the bosses 131 may be located at other positions on the lower surface of the housing assembly 100 to connect with the bosses 131 on the open edge of the brush cavity 110 to extend the ventilation channel 132.

[0060] Reference Figure 2 The direction of movement of the cleaning device 10 during cleaning is defined as the Y direction, and the width direction of the cleaning device 10 is defined as the X direction, which is perpendicular to the Y direction.

[0061] As one possible implementation, along the cleaning direction of the cleaning device 10, the roller brush cavity 110 is located near the front end of the housing assembly 100; a plurality of bosses 131 are located on the rear side of the opening of the roller brush cavity 110.

[0062] It is understandable that, along the cleaning direction of the cleaning device 10, multiple protrusions 131 are provided on the rear side of the opening of the roller brush chamber 110. Protrusions 131 may be provided on the front side and the left and right sides of the opening of the roller brush chamber 110, or they may not be provided.

[0063] As one possible implementation, along the length of the brush cavity 110, multiple protrusions are arranged sequentially and spaced apart from one end to the other along the open edge of the brush cavity 110.

[0064] It is understood that, along the cleaning direction of the cleaning device 10, the rear side of the open of the roller brush chamber 110 is provided with multiple protrusions 131, and the multiple protrusions 131 on the rear side of the open of the roller brush chamber 110 are arranged at intervals along the length direction of the roller brush chamber 110, so that multiple ventilation channels 132 are formed on the rear side of the open of the roller brush chamber 110.

[0065] As one possible implementation, the housing assembly 100 includes an upper housing 140, a lower housing 150, and a base plate 160. The upper housing 140 is connected above the lower housing 150, the opening of the brush cavity 110 is located in the lower housing 150, and the base plate 160 covers the opening of the brush cavity 110. At least one of the base plate 160 and the lower housing 150 is provided with a protrusion structure 130.

[0066] It should be noted that a protruding structure 130 may be provided on the base plate 160, but not on the lower shell 150; or, a protruding structure 130 may be provided on the lower shell 150, but not on the base plate 160; or, a protruding structure 130 may be provided on both the base plate 160 and the lower shell 150.

[0067] For example, along the cleaning direction of the cleaning device 10, a protruding structure 130 is provided on the rear side of the base plate 160, and a ventilation channel 132 is formed between adjacent protrusions 131 of the protruding structure 130; the lower housing 150 is provided with a protruding structure 130, and a first ventilation groove 133 and a second ventilation groove 134 are formed between adjacent protrusions 131 of the protruding structure 130 of the lower housing 150. The first ventilation groove 133 extends along the width direction of the cleaning device 10, and the second ventilation groove 134 extends along the cleaning direction of the cleaning device 10. The first ventilation groove 133 can connect the two sides of the space in the width direction of the cleaning device 10, and the second ventilation groove 134 can connect the ventilation channel 132 and the rear space of the cleaning device 10. When the suction channel 120 draws air, the roller brush chamber 110 generates negative pressure suction. On one hand, airflow enters the first ventilation slot 133 from both sides of the cleaning device 10 in the width direction, and flows from both ends of the first ventilation slot 133 towards the middle. On the other hand, airflow enters from the end of the second ventilation slot 134 away from the connecting slot and flows towards the ventilation channel 132. During the process of the airflow from the first ventilation slot 133 flowing towards the middle, it merges with the airflow from the second ventilation slot 134 and is carried to the ventilation channel 132. From the ventilation channel 132, it enters the roller brush chamber 110 and finally enters the suction channel 120. During the flow, the airflow can carry dust, hair, and other debris to the suction channel 120 and into the debris collection device inside the cleaning device 10, achieving a cleaning effect.

[0068] It should be noted that there can be multiple first ventilation slots 133 and second ventilation slots 134. Multiple first ventilation slots 133 are arranged at intervals along the width direction of the cleaning equipment 10, and multiple second ventilation slots 134 are arranged at intervals along the cleaning direction of the cleaning equipment 10. The first ventilation slots 133 and second ventilation slots 134 can be arranged perpendicular to each other or not perpendicular to each other. The included angle between the first ventilation slots 133 and second ventilation slots 134 is greater than 0° and less than or equal to 90°.

[0069] As one possible implementation, the base plate 160 includes a frame 161 and a reinforcing rib 162. The frame 161 is arranged around the open edge of the brush cavity 110, and the two ends of the reinforcing rib 162 are respectively connected to the opposite sides of the frame 161. The protruding structure 130 is at least partially disposed on the frame 161.

[0070] It should be noted that the two ends of the reinforcing rib 162 can be connected to the opposite sides of the frame 161 in the width direction or to the opposite sides of the frame 161 in the length direction to enhance the structural strength of the floor. There can be multiple reinforcing ribs 162, which can be arranged in parallel or at a certain angle. The width direction of the frame 161 is the Y-direction, and the length direction of the frame 161 is the X-direction.

[0071] The support rib may have at least one ventilation section, which can be a through groove or a through hole. The ventilation section extends through the width direction of the support rib, which is the X direction. There is a height difference between the inner wall of the ventilation section and the outer surface of the support rib. When the air intake channel 120 draws in air through the brush chamber 110, there is a velocity difference between the airflow flowing through the outer surface of the support rib and the airflow flowing through the ventilation section, which causes turbulence. This turbulence disturbs the airflow near the opening of the air intake chamber, suppressing the centripetal force generated by the rotation of the brush 200 from causing hair to wrap around the brush 200, reducing the probability of hair directly contacting the brush 200, and thus preventing hair from wrapping around the brush 200.

[0072] For example, the ventilation section is a through groove. When the suction channel 120 draws air, part of the airflow flows through the through groove. By setting a slope structure with a specific angle in the through groove, i.e. setting a chamfer with a specific angle to induce turbulence, when the airflow passes through the chamfer, the geometric change causes the velocity gradient to increase, breaking the laminar boundary layer and generating directional vortices, such as longitudinal vortices or Karman vortex streets. These vortices enhance the lateral mixing ability of the airflow through shearing and energy transfer, which can disturb the surrounding airflow and reduce the probability of hair fibers contacting the roller brush 200, thereby avoiding hair from getting tangled in the roller brush 200.

[0073] As one possible implementation, the base plate 160 and the lower housing 150 are detachably connected, or the base plate 160 and the lower housing 150 are integrally formed.

[0074] It is understandable that the base plate 160 and the lower housing 150 can be detachably connected or integrally formed. When the base plate 160 and the lower housing 150 are detachably connected, if the base plate 160 needs to be replaced due to wear or damage, the base plate 160 can be removed separately without replacing the entire lower housing 150, reducing maintenance costs. When the base plate 160 and the lower housing 150 are integrally formed, the overall rigidity is better, making it suitable for scenarios that withstand high-intensity loads or vibrations.

[0075] As one possible implementation, along the cleaning direction of the cleaning device 10, the front edge of the base plate 160 is provided with a plurality of spaced ventilation holes 163, and the axial direction of the ventilation holes 163 is at an angle to the vertical direction.

[0076] It is understandable that the ventilation hole 163 is set on the frame 161 of the base plate 160. The ventilation hole 163 is set through the thickness direction of the frame 161 of the base plate 160, connecting the outer space of the base plate 160 and the inner space of the roller brush cavity 110. When the suction channel 120 suctions air, some airflow can pass through the ventilation hole 163, which increases the ventilation area and improves the suction efficiency.

[0077] For example, along the upper side to the lower side of the ventilation hole 163, the ventilation hole 163 faces the front side of the cleaning device 10, so that dust, hair and other debris can enter the roller brush chamber 110 through the ventilation hole 163.

[0078] As one possible implementation, the cross-section of the ventilation hole 163 is a closed annulus, such as a circle or a square, and the radial side of the ventilation hole 163 is not connected to the opening of the brush cavity 110; or, the radial side of the ventilation hole 163 is connected to the opening of the brush cavity 110.

[0079] For example, the cross-section of the ventilation hole 163 is circular, the circular cross-section ventilation hole 163 penetrates the bottom plate 160, and multiple circular cross-section ventilation holes 163 are arranged at intervals along the length direction of the bottom plate 160, that is, the X direction.

[0080] For example, the cross-section of the ventilation hole 163 is semi-circular, and the radial side of the semi-circular cross-section ventilation hole 163 is connected to the opening of the roller brush cavity 110. Multiple semi-circular cross-section ventilation holes 163 are arranged at intervals along the length direction of the base plate 160, that is, the X direction, so that the frame 161 of the base plate 160 is serrated.

[0081] As one possible implementation, the front side of the base plate 160 has an arcuate surface 164 that curves upward from the edge of the opening, and ventilation holes 163 are disposed on the arcuate surface 164.

[0082] It is understandable that the axial direction of the ventilation hole 163 can be perpendicular to the arc surface 164. In this case, the axial direction of the ventilation hole 163 has an angle with the vertical direction, which facilitates the entry of garbage and debris. In addition, when the ventilation hole 163 is set on the arc surface 164, since the arc surface 164 extends to the side front along the cleaning direction, the ventilation hole 163 has a gap with the surface being cleaned, so that large particles of debris can pass through.

[0083] This application provides a cleaning device 10, including a housing assembly 100 and a roller brush 200; the housing assembly 100 has a roller brush cavity 110 and a suction channel 120, the suction channel 120 communicating with the roller brush cavity 110; the roller brush cavity 110 is open facing downwards towards the housing assembly 100, and the roller brush 200 is rotatably disposed in the roller brush cavity 110; the lower surface of the housing assembly 100 is provided with a protruding structure 130; when the cleaning device 10 cleans the surface to be cleaned, the lower surface of the housing assembly 100 faces the surface to be cleaned, and the protruding structure 130 contacts the surface to be cleaned, so that at least a portion of the lower surface of the housing assembly 100 has a gap with the surface to be cleaned, the gap between the lower surface of the housing assembly 100 and the surface to be cleaned can improve the suction efficiency, so that dust and hair can be quickly sucked in.

[0084] 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 device (10) includes a housing assembly (100) and a roller brush (200); the housing assembly (100) has a roller brush cavity (110) and a suction channel (120), the suction channel (120) communicating with the roller brush cavity (110); the roller brush cavity (110) is open towards the lower part of the housing assembly (100), and the roller brush (200) is rotatably disposed in the roller brush cavity (110); The lower surface of the housing assembly (100) is provided with a protrusion structure (130); when the cleaning device (10) cleans the surface to be cleaned, the lower surface of the housing assembly (100) faces the surface to be cleaned, and the protrusion structure (130) contacts the surface to be cleaned so that at least a portion of the lower surface of the housing assembly (100) has a gap with the surface to be cleaned.

2. The cleaning equipment according to claim 1, characterized in that, The protruding structure (130) includes a plurality of protrusions (131), which are spaced apart; when the protruding structure (130) contacts the surface being cleaned, a ventilation channel (132) is formed between adjacent protrusions (131).

3. The cleaning equipment according to claim 2, characterized in that, At least a portion of the plurality of said bosses (131) are arranged along the open edge of said brush cavity (110).

4. The cleaning equipment according to claim 3, characterized in that, Along the cleaning direction of the cleaning device (10), the roller brush cavity (110) is located near the front end of the housing assembly (100); a plurality of the bosses (131) are located on the rear side of the opening of the roller brush cavity (110).

5. The cleaning equipment according to claim 3, characterized in that, Along the length of the brush cavity (110), a plurality of protrusions are arranged sequentially at intervals from one end to the other end along the open edge of the brush cavity (110).

6. The cleaning equipment according to any one of claims 2-5, characterized in that, The housing assembly (100) includes an upper housing (140), a lower housing (150), and a base plate (160). The upper housing (140) is connected above the lower housing (150), the opening of the brush cavity (110) is located in the lower housing (150), and the base plate (160) covers the opening of the brush cavity (110). At least one of the base plate (160) and the lower housing (150) is provided with the protruding structure (130).

7. The cleaning equipment according to claim 6, characterized in that, The base plate (160) includes a frame (161) and a reinforcing rib (162). The frame (161) is arranged around the open edge of the brush cavity (110). The two ends of the reinforcing rib (162) are respectively connected to the opposite sides of the frame (161). The protruding structure (130) is at least partially arranged on the frame (161).

8. The cleaning equipment according to claim 6, characterized in that, The base plate (160) is detachably connected to the lower housing (150), or the base plate (160) and the lower housing (150) are integrally formed.

9. The cleaning equipment according to claim 6, characterized in that, Along the cleaning direction of the cleaning device (10), the front edge of the base plate (160) is provided with a plurality of spaced ventilation holes (163), and the axial direction of the ventilation holes (163) is at an angle to the vertical direction.

10. The cleaning equipment according to claim 9, characterized in that, The cross-section of the ventilation hole (163) is a closed annular shape; or, the radial side of the ventilation hole (163) is connected to the opening of the brush cavity (110).

11. The cleaning equipment according to claim 9, characterized in that, The front side of the base plate (160) has an arcuate surface (164) that curves upward from the open edge, and the ventilation hole (163) is provided on the arcuate surface (164).

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