Rolling brush assembly and cleaning equipment

Abstract

The invention provides a rolling brush assembly and cleaning equipment, and relates to the technical field of cleaning products. The rolling brush assembly is used for the cleaning equipment, and the rolling brush assembly is rotationally arranged on the cleaning equipment. The rolling brush assembly comprises a roller and at least one flexible cleaning piece, the flexible cleaning piece is arranged on the surface of the roller, and the roller is provided with ventilation holes; when the rolling brush assembly rotates, the ventilation holes form an air path for airflow circulation, and an included angle is formed between the airflow direction of the air path and the axial direction of the roller. When the rolling brush assembly rotates to clean the to-be-cleaned face, negative pressure airflow formed by the cleaning equipment can flow through the ventilation holes in the roller, the direction of suction force generated by the air suction opening in the cleaning equipment is changed, a whole machine airflow path of the cleaning equipment is improved, and the influence of inward suction force on hair fibers is weakened; and hair fibers are prevented from being wound on the rolling brush assembly.

Description

Technical Field

[0001] The present application relates to the technical field of cleaning products, and in particular to a roller brush assembly and a cleaning device. Background Art

[0002] Mite removers, vacuum cleaners, and robot vacuums are commonly used cleaning devices in the home. Vacuum cleaners and robot vacuums can clean floors, while mite removers can remove dust and worms from surfaces like mattresses and leather.

[0003] In related technologies, cleaning equipment usually includes a shell and a fan unit arranged in the shell. The airflow generated by the fan unit generates suction at the suction port of the shell. A roller brush can be provided at the position corresponding to the suction port. The roller brush rolls on the cleaned surface to pick up dust and hair, and the dust and hair are sucked into the inside of the device through the suction force of the suction port to achieve the cleaning function.

[0004] However, currently when cleaning a soft surface, hair fibers are easily entangled on the roller brush as the roller brush rotates due to the suction force of the air inlet, making it difficult to clean. Summary of the Invention

[0005] The present application provides a roller brush assembly and a cleaning device to solve the technical problem that when current cleaning devices are used to clean soft surfaces, hair fibers are easily entangled on the roller brush as the roller brush rotates under the action of the suction force of the air intake, making it difficult to clean.

[0006] In a first aspect, the present application provides a roller brush assembly for use in a cleaning device, wherein the roller brush assembly is rotatably arranged on the cleaning device, and comprises a roller and at least one flexible cleaning member, wherein the flexible cleaning member is arranged on the surface of the roller and protrudes relative to the surface of the roller.

[0007] The roller is provided with ventilation holes; when the roller brush assembly rotates, the ventilation holes form an air path for air flow, and the air flow direction of the air path has an angle with the axial direction of the roller.

[0008] The roller brush assembly provided in the present application can form an air path for air circulation on the roller by arranging ventilation holes on the roller. In this way, when the roller brush assembly rotates to clean the surface to be cleaned, the negative pressure airflow formed by the cleaning equipment can flow through the ventilation holes on the roller, changing the direction of the suction generated by the air suction port of the cleaning equipment, improving the overall airflow path of the cleaning equipment, weakening the influence of the inward suction on the hair fibers, and preventing the hair fibers from being entangled on the roller brush assembly.

[0009] As an optional embodiment, the ventilation holes penetrate the roller in the rotational circumference of the roller brush assembly.

[0010] Such an arrangement allows the airflow to pass through the drum quickly, thereby improving the airflow efficiency.

[0011] As an optional embodiment, along the radial direction of the drum, there is a distance between the center of the ventilation hole and the rotation axis of the drum.

[0012] With such an arrangement, as the roller brush assembly rotates, it can drive the air flow and increase the speed at which the cleaning device inhales the air flow.

[0013] As an optional embodiment, the ventilation holes extend along the axial direction of the drum; or, the ventilation holes extend spirally along the axial direction of the drum.

[0014] Such an arrangement can increase the ventilation area in the length direction of the roller brush assembly and improve the air flow efficiency.

[0015] As an optional embodiment, the length of the ventilation hole matches the length of the drum.

[0016] With this arrangement, air can flow through the ventilation holes in the area cleaned along the length of the roller brush assembly, preventing fiber hair from being entangled on the roller.

[0017] As an optional embodiment, there may be a plurality of ventilation holes, and the plurality of ventilation holes are spaced apart along the axial direction of the drum.

[0018] Such an arrangement can increase the number of air flow paths passing through the drum and improve the cleaning effect.

[0019] As an optional embodiment, the drum has a plurality of baffle structures, and ventilation holes are formed between adjacent baffle structures.

[0020] With such arrangement, the baffle structure can play a supporting and reinforcing role, thereby improving the structural strength of the drum.

[0021] Such an arrangement can ensure that the drum has good structural strength while ensuring the air flow efficiency.

[0022] As an optional implementation, the area of the ventilation hole is S1, and the axial cross-sectional area of the drum is S2, wherein 1%≤S1 / S2<1, so as to ensure smooth airflow.

[0023] As an optional embodiment, the roller may include a roller, two connecting ends and at least one supporting portion, the two connecting ends are respectively connected to the two axial ends of the roller, and the two ends of the supporting portion are respectively connected to the connecting ends at both ends of the roller.

[0024] The ventilation hole may include a first ventilation hole, and a distance is provided between the support portion and the roller to form the first ventilation hole.

[0025] Such an arrangement can increase the outer diameter of the entire drum, weaken the effect of the inward suction force of the cleaning device on hair fibers, and reduce hair entanglement.

[0026] As an optional embodiment, the drum includes a roller body, and the ventilation holes are opened in the roller body and penetrate the outer surface of the roller body. In this way, the ventilation holes can be directly formed when the roller body is processed, reducing production costs.

[0027] As an optional embodiment, the drum includes two connecting ends and multiple supporting portions, each end of each supporting portion is connected to the two connecting ends, and the supporting portions are spaced apart circumferentially around the connecting ends to form ventilation holes. In this way, the drum can be hollowed out as a whole, thereby increasing the ventilation volume of the ventilation holes.

[0028] As an optional embodiment, the support portion is provided with a through groove extending axially along the roller brush assembly, and the flexible cleaning member is inserted into the through groove; at least part of the structure of the flexible cleaning member protrudes from the through groove along the radial direction of the roller to the outside of the roller.

[0029] With this arrangement, the flexible cleaning element squeezes and rubs the surface to be cleaned, thereby improving the cleaning effect.

[0030] As an optional embodiment, the edge of the flexible cleaning member away from the drum is parallel to or has an angle with the inner wall of the through-groove away from the central axis of the drum.

[0031] This arrangement ensures that the flexible cleaning member has a good cleaning effect on the surface to be cleaned along the length direction of the drum.

[0032] As an optional embodiment, the flexible cleaning member has a connecting portion, which is located in the through-groove, and the cross-sectional shape of the connecting portion matches the cross-sectional shape of the through-groove; the surface of the connecting portion away from the central axis of the drum is parallel to or has an angle with the inner wall of the through-groove close to the central axis of the drum.

[0033] Such an arrangement improves the reliability of the plug-in installation of the flexible cleaning member on the support portion, and prevents the flexible cleaning member from shaking or falling off.

[0034] As an optional embodiment, there may be multiple connecting parts, and the multiple connecting parts are arranged at intervals along the length direction of the through-slot.

[0035] The ventilation holes may include second ventilation holes, which are arranged on the supporting portion, and the second ventilation holes are opposite to the gaps between adjacent connecting portions.

[0036] Such an arrangement can increase the number of ventilation holes and improve the airflow efficiency.

[0037] As an optional implementation manner, the first ventilation hole and the second ventilation hole are staggered along the axial direction of the drum; or, the first ventilation hole and the second ventilation hole are arranged in a one-to-one correspondence along the axial direction of the drum.

[0038] Such an arrangement makes the ventilation holes provided on the cross section of the roller take on a honeycomb shape, breaking up the airflow and preventing hair from being entangled on the roller brush assembly.

[0039] As an optional embodiment, the edge of the flexible cleaning member away from the central axis of the drum forms an angle with the central axis of the drum.

[0040] Such an arrangement can increase the degree of deformation of the flexible cleaning member, and lift the hair through squeezing and friction.

[0041] As an optional embodiment, the roller brush assembly may further include an end cover connected to the axial end of the roller, and a slot is provided on the side of the end cover facing the flexible cleaning member, and the end of the flexible cleaning member is inserted into the slot; wherein the groove depth of the slot along the axial direction of the roller is greater than or equal to 1% of the axial length of the roller, and less than or equal to 10% of the axial length of the roller.

[0042] Such an arrangement can improve the installation stability of the flexible cleaning member and prevent hair fibers from being entangled at the two ends of the drum.

[0043] In a second aspect, the present application provides a cleaning device, which includes a device body and the roller brush assembly in the above technical solution, and the roller brush assembly is rotatably arranged on the device body.

[0044] As an optional embodiment, the device body is provided with a roller brush cavity having an opening toward one side of the device body. The roller brush assembly is located in the roller brush cavity and exposed from the opening to contact the surface to be cleaned.

[0045] The contour shape of the cavity wall of the roller brush cavity matches the contour shape of the roller brush assembly; the outer contour diameter of the roller brush assembly is 1%-90% of the diameter of the roller brush cavity.

[0046] The present application provides a roller brush assembly and a cleaning device, wherein the roller brush assembly is used in the cleaning device and is rotatably mounted on the cleaning device. The roller brush assembly includes a roller and at least one flexible cleaning member, the flexible cleaning member being mounted on the surface of the roller, and the roller being provided with ventilation holes. When the roller brush assembly rotates, the ventilation holes form an air path for airflow, and the airflow direction of the air path forms an angle with the axial direction of the roller. When the roller brush assembly rotates to clean the surface to be cleaned, the negative pressure airflow generated by the cleaning device can flow through the ventilation holes on the roller, thereby changing the direction of the suction force generated by the air intake port on the cleaning device, improving the overall airflow path of the cleaning device, weakening the effect of the inward suction force on hair fibers, and preventing hair fibers from becoming entangled in the roller brush assembly.

[0047] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the roller brush assembly and cleaning equipment provided by the present application, 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 implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] Figure 1 A schematic diagram of a roller brush assembly provided in an embodiment of the present application being applied to a cleaning device;

[0050] Figure 2 A schematic structural diagram of a roller brush assembly provided in an embodiment of the present application;

[0051] Figure 3 A front view of a roller brush assembly provided in an embodiment of the present application;

[0052] Figure 4 for Figure 3 Cross-sectional view at the AA position;

[0053] Figure 5 A schematic structural diagram of a roller in a roller brush assembly provided in an embodiment of the present application;

[0054] Figure 6 A front view of a roller in a roller brush assembly provided in an embodiment of the present application;

[0055] Figure 7 for Figure 6 Cross-sectional view of the middle BB position;

[0056] Figure 8 for Figure 6 Cross-sectional view at the mid-CC position;

[0057] Figure 9 A schematic diagram of another structure of a roller brush assembly provided in an embodiment of the present application;

[0058] Figure 10 A schematic diagram of a roller in another structure of a roller brush assembly provided in an embodiment of the present application;

[0059] Figure 11 A cross-sectional view of a roller in another structure of a roller brush assembly provided in an embodiment of the present application;

[0060] Figure 12 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 1 ;

[0061] Figure 13 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 2 ;

[0062] Figure 14 A front view of a flexible cleaning member in a roller brush assembly provided in an embodiment of the present application;

[0063] Figure 15 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 3 ;

[0064] Figure 16 A cross-sectional view of the cleaning device provided in the embodiment of the present application Figure 1 ;

[0065] Figure 17 A cross-sectional view of the cleaning device provided in the embodiment of the present application Figure 2 .

[0066] Description of reference numerals:

[0067] 10- Cleaning equipment;

[0068] 100 - roller brush assembly; 110 - roller; 111 - ventilation hole; 111a - first ventilation hole; 111b - second ventilation hole; 112 - baffle structure; 113 - roller; 114 - connection end; 115 - support portion; 1151 - through slot; 120 - flexible cleaning member; 121 - connection portion; 130 - end cap; 131 - slot;

[0069] 200- Equipment body; 201- Roller brush chamber; 202- Air inlet. DETAILED DESCRIPTION

[0070] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0071] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0072] The terms "first," "second," and "third" (if any) in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can be practiced in orders other than those illustrated or described herein.

[0073] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or service tool that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or service tool.

[0074] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0075] Cleaning devices such as dust mite removers, vacuum cleaners, and robot vacuums are commonly used in households. Vacuum cleaners and robot vacuums clean floors, while dust mite removers remove dust and worms from surfaces like mattresses and leather. These cleaning devices typically include a housing and a fan unit housed within the housing. The airflow generated by the fan unit creates suction at the housing's suction port. A roller brush is positioned at the corresponding position of the suction port. The roller brush rolls across the surface being cleaned, picking up dust and hair. The suction at the suction port draws the dust and hair into the device, achieving its cleaning function.

[0076] However, under the action of the suction force of the air suction port, the hair fibers are easily entangled on the roller brush as the roller brush rotates, and the entanglement becomes tighter and tighter, making the roller brush difficult to clean.

[0077] In addition, when current cleaning equipment cleans soft surfaces, such as bedding, clothes, sofa surfaces, etc., the soft surfaces will be concave, and hair fibers are easily attached to these soft surfaces and are difficult to be sucked into the cleaning equipment. As a result, even if the cleaning equipment cleans back and forth, the roller brush still cannot remove all hair fibers and the cleaning effect is poor.

[0078] In order to solve the above technical problems, the embodiment of the present application provides a roller brush assembly and a cleaning device. The roller brush assembly is provided with ventilation holes on the roller through the design of its roller structure, so that when the cleaning device is cleaning, in addition to the air flow passing through the periphery of the roller brush assembly, an additional air path for air circulation can be formed on the roller of the roller brush assembly, thereby changing the direction of the suction force generated by the air suction port on the cleaning device, thereby improving the layout of the air flow path of the entire cleaning device, avoiding hair fibers from being entangled in the roller brush assembly, and the attached hair fibers are more easily sucked into the interior of the cleaning device, and the cleaning device has a better cleaning effect.

[0079] The following first illustrates the application scenarios of the roller brush assembly and cleaning device provided in the embodiments of the present application.

[0080] The roller brush assembly provided in the embodiment of the present application is applied to a cleaning device, which is a cleaning tool with a roller brush structure. Specifically, the product types of the cleaning device in the embodiment of the present application may include but are not limited to a mite remover, a vacuum cleaner, a sweeper, a sweeping robot, etc. Depending on the product type, the cleaning device provided in the embodiment of the present application can be used for carpets, bed sheets, sofas, clothes, etc., and the embodiment of the present application does not make specific limitations on this.

[0081] Figure 1 A schematic diagram of a roller brush assembly provided in an embodiment of the present application being applied to a cleaning device; Figure 2 A schematic structural diagram of a roller brush assembly provided in an embodiment of the present application; Figure 3 A front view of a roller brush assembly provided in an embodiment of the present application; Figure 4 for Figure 3 Cross-sectional view at the AA position; Figure 5 A schematic structural diagram of a roller in a roller brush assembly provided in an embodiment of the present application; Figure 6 A front view of a roller in a roller brush assembly provided in an embodiment of the present application; Figure 7 for Figure 6 Cross-sectional view of the middle BB position; Figure 8 for Figure 6 Cross-sectional view at the CC position.

[0082] See also Figures 1 to 8As shown, an embodiment of the present application provides a roller brush assembly 100, which is applied to a cleaning device 10. When the cleaning device 10 cleans the surface to be cleaned, the roller brush assembly 100 can contact the surface to be cleaned. The roller brush assembly 100 can rotate on the cleaning device 10, and as the cleaning device 10 moves, the roller brush assembly 100 can roll and rub the surface to be cleaned to clean dust and fiber hair attached to the surface to be cleaned.

[0083] The roller brush assembly 100 provided in an embodiment of the present application includes a roller 110 and at least one flexible cleaning member 120, which is disposed on the surface of the roller 110. The flexible cleaning member 120 protrudes relative to the surface of the roller 110. The roller 110 can be rotatably connected to the cleaning device 10, and the roller 110 supports the flexible cleaning member 120. The flexible cleaning member 120 is elastic. When the flexible cleaning member 120 contacts the surface to be cleaned, it can be squeezed to produce elastic deformation, thereby increasing the friction between it and the surface to be cleaned, and by rubbing and hitting the surface to be cleaned, it removes attached dust and fiber hair.

[0084] The roller 110 is provided with ventilation holes 111. When the roller brush assembly 100 rotates, the ventilation holes 111 form an air path for air flow, and the air flow direction of the air path forms an angle with the axial direction of the roller 110.

[0085] It is understandable that the cleaning device 10 can be provided with a fan to generate negative pressure airflow, which is used to cooperate with the roller brush assembly 100 to use negative pressure suction to suck dust and hair fibers on the surface to be cleaned into the interior of the cleaning device 10.

[0086] In the embodiment of the present application, the negative pressure airflow generated on the cleaning device 10 can, on the one hand, flow through the peripheral side of the roller brush assembly 100, and on the other hand, the negative pressure airflow can flow through the air path formed by the ventilation holes 111, so that the peripheral side of the roller 110 and the roller 110 itself can form an air path for air circulation, thereby increasing the air volume and airflow efficiency, thereby preventing hair fibers from remaining on the surface to be cleaned.

[0087] It should be noted that when the roller brush assembly 100 rotates to clean the surface to be cleaned, the negative pressure airflow formed by the cleaning device 10 can flow through the ventilation holes 111 on the drum 110, and the soft cleaning parts on the surface of the drum 110 can still have a good friction and patting cleaning effect on the surface to be cleaned. At the same time, the drum 110 will not completely block the circulation of the airflow, thereby changing the direction of the suction force generated by the air suction port on the cleaning device 10. Part of the airflow bypasses the outside of the drum 110, but part of the airflow can pass directly through the drum 110, reducing wind resistance, improving the overall airflow path of the cleaning device 10, avoiding hair fibers from being entangled in the roller brush assembly 10, and making it easier for hair fibers to be sucked into the inside of the cleaning device 10, thereby improving the cleaning effect.

[0088] First, the structure of the ventilation hole 111 will be described in detail below.

[0089] Please continue to refer to Figures 1 to 8 In some embodiments, in the rotational circumference of the roller brush assembly 100, the ventilation holes 111 penetrate the baffle structure 112, so that the air flow can quickly pass through the roller 110, thereby improving the air flow efficiency.

[0090] It can be understood that on the cleaning device 10, the suction port opposite to the roller brush assembly 100 is usually located on the side of the roller brush assembly 100. When the suction port generates negative pressure suction, as the roller brush assembly 100 rotates, the ventilation hole 111 can be understood as forming an annular air path around the center of the drum 110, and the air flow is more likely to pass through the drum 110 along the radial direction of the drum 110 and be sucked into the suction port.

[0091] In some embodiments, along the radial direction of the drum 110 , the center of the ventilation hole 111 is spaced apart from the rotation axis of the drum 110 .

[0092] The ventilation holes 111 are offset relative to the central axis of the roller 110. As the roller brush assembly 100 rotates at high speed, airflow can more easily pass through the ventilation holes 111 in the direction of rotation, thereby significantly reducing airflow resistance. Furthermore, as the roller brush assembly 100 rotates, it can drive airflow, increasing the speed at which the cleaning device 10 inhales air.

[0093] For example, the ventilation holes 111 may extend along the axial direction of the drum 110 , thereby increasing the ventilation area in the length direction of the roller brush assembly 100 and improving the airflow efficiency.

[0094] For example, the ventilation holes 111 extend spirally along the axial direction of the drum. The extending direction of the ventilation holes 111 is consistent with the extending direction of the baffle structure 112. The overall outline of the roller brush assembly 100 can be a twist-shaped structure.

[0095] The airflow passing through the ventilation holes 111 may flow in any direction except parallel to the axial direction of the drum 110 .

[0096] It should be noted that the extension direction of the ventilation hole 111 can be parallel to the axial direction of the drum 110, or can have a certain angle with the axial direction of the drum 110. The shape of the ventilation hole 111 can be square, elongated, circular, elliptical or other shapes, which are not specifically limited in the embodiments of the present application.

[0097] In addition, multiple areas with ventilation holes 111 may be provided around the circumference of the roller 110. For example, the ventilation holes 111 may be located opposite the flexible cleaning member 120. As the roller brush assembly 100 rotates, a substantially annular air flow path may be formed on the roller 110. Airflow from outside the roller brush assembly 100 may enter the annular air flow path and flow out when it approaches the air intake of the cleaning device 10.

[0098] In each corresponding area in the circumferential direction of the drum 110 , a single ventilation hole 111 may be provided, or a plurality of ventilation holes 111 may be provided, which will be described in detail below.

[0099] Figure 9 A schematic diagram of another structure of a roller brush assembly provided in an embodiment of the present application; Figure 10 A schematic diagram of a roller in another structure of a roller brush assembly provided in an embodiment of the present application; Figure 11 A cross-sectional view of a roller in another structure of a roller brush assembly provided in an embodiment of the present application.

[0100] Please refer to Figures 9 to 11 In some embodiments, when there is only one ventilation hole 111, the length of the ventilation hole 111 matches the length of the roller 110. Air can flow through the ventilation hole 111 in the area cleaned in the longitudinal direction of the roller brush assembly 100, thereby preventing fibers and hair from being entangled on the roller 110.

[0101] Please continue to refer to Figures 1 to 8 In other embodiments, there may be a plurality of ventilation holes 111, and the plurality of ventilation holes 111 are spaced apart along the axial direction of the drum 110, thereby increasing the number of air flow paths passing through the drum 110 and improving the cleaning effect.

[0102] It can be understood that when the roller brush assembly 100 rotates, each ventilation hole 111 can be understood as forming an air path, and multiple air paths can break up the airflow passing through the drum 110, thereby reducing wind resistance and reducing the noise generated when the roller brush assembly 100 rotates for cleaning.

[0103] For example, the drum 110 has a plurality of baffle structures 112, with ventilation holes 111 formed between adjacent baffle structures 112. The baffle structures 112 can provide support and reinforcement, thereby increasing the structural strength of the drum 110. The specific number of baffle structures 112 is not limited in this embodiment of the present application.

[0104] In the embodiment of the present application, the volume of the baffle structure 112 is greater than or equal to 1% of the volume of the drum 110 and less than or equal to 80% of the volume of the drum 110. While ensuring airflow efficiency, the drum 110 can be guaranteed to have good structural strength.

[0105] For example, the ratio of the volume of the baffle structure 112 to the volume of the drum 110 can be 1%, 2%, 10%, 30%, 45%, 60%, 70%, 79%, 80%, etc., which is not specifically limited in the embodiments of the present application.

[0106] It should be noted that the baffle structure 112 can be welded to the main structure of the drum 110, or the baffle structure 112 can be integrally formed with the drum 110, which is not specifically limited in the embodiment of the present application.

[0107] In some embodiments, the area of the ventilation hole 111 is S1, and the axial cross-sectional area of the drum 110 is S2, wherein 1%≤S1 / S2<1, so as to ensure smooth airflow.

[0108] It can be understood that the area S1 of the ventilation holes 111 refers to the sum of the areas of all the ventilation holes 111 in the axial section of the drum 110 .

[0109] It should be noted that the ventilation holes 111 can be formed by different structures on the drum 110, and accordingly, the drum 110 can be designed into different structural forms.

[0110] The structure of the drum 110 will be described in detail below.

[0111] Please continue to refer to Figures 1 to 8 In some embodiments, the roller 110 may include a roller 113 and a connecting end 114, and the baffle structure 112 may include a supporting portion 115, the connecting end 114 is connected to the two axial ends of the roller 113, and the two ends of the supporting portion 115 are respectively connected to the connecting ends 114 at both ends of the roller 113.

[0112] It is understood that the roller 113 can be an elongated cylindrical structure. The connecting end 114 is located at the axial end of the roller 113, and its radial area is larger than the radial maximum cross-section of the roller 113, thereby supporting the overall frame structure of the drum 110. The supporting portion 115 is used to mount the flexible cleaning member 120.

[0113] The ventilation hole 111 may include a first ventilation hole 111 a , and a distance is provided between the support portion 115 and the roller 113 to form the first ventilation hole 111 a . This can improve the convenience of processing and forming the roller 110 and reduce production costs.

[0114] For example, the support portion 115 may be welded to the connection end 114 , or the roller 113 , the connection end 114 and the support portion 115 may be integrally formed, which is not specifically limited in the embodiment of the present application.

[0115] In other embodiments, the roller 110 includes a roller body 113, and the ventilation holes 111 are opened in the roller body 113 and penetrate the outer surface of the roller body. In this way, the ventilation holes 111 can be directly formed when the roller body 113 is processed, thereby reducing production costs.

[0116] It is understood that, compared with the previous example, the ventilation holes 111 in this example are directly provided on the roller 113. The roller 113 is cylindrical in structure, and both ends of the ventilation holes 111 for air inlet and outlet are located on the outer surface of the roller 113.

[0117] In another embodiment, the drum 110 may include two connecting ends 114 and a plurality of supporting portions 115. Both ends of the plurality of supporting portions 115 are respectively connected to the two connecting ends 114 and are spaced apart around the circumference of the connecting ends 114 to form the ventilation holes 111. In this way, the drum 110 may be hollowed out as a whole, thereby increasing the ventilation volume of the ventilation holes 111.

[0118] It can be understood that, compared with the aforementioned example, the roller 113 may not be provided in this example, and the cage-shaped frame structure is formed by the connecting end 114 and the supporting portion 115 , which can maximize the ventilation area of the ventilation hole 111 .

[0119] Figure 12 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 1 ; Figure 13 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 2 ; Figure 14 A front view of a flexible cleaning member in a roller brush assembly provided in an embodiment of the present application; Figure 15 Schematic diagram of the structure of the flexible cleaning member in the roller brush assembly provided in the embodiment of the present application Figure 3 .

[0120] Please refer to Figures 12 to 15 , and combined with Figures 1 to 8 In some embodiments, the support portion 115 is provided with a through-groove 1151 extending axially along the roller brush assembly 100, and the flexible cleaning member 120 is inserted into the through-groove 1151. At least a portion of the flexible cleaning member 120 protrudes from the through-groove 1151 radially outward of the roller 110. The flexible cleaning member 120 squeezes and rubs the surface to be cleaned, thereby improving the cleaning effect.

[0121] There may be a plurality of flexible cleaning members 120 , and the plurality of flexible cleaning members 120 are spaced apart along the circumference of the drum 110 .

[0122] It is understandable that, during the rotation and cleaning process of the roller brush assembly 100 , the multiple flexible cleaning members 120 may sequentially contact and slap the surface to be cleaned, so that the roller brush assembly 100 has a better cleaning effect.

[0123] For example, the flexible cleaning member 120 can be a rubber strip, a brush, or a combination thereof. For example, the flexible cleaning member 120 can be a rubber strip. When a colloid is used as the flexible cleaning member 120, the rubber strip can pat the surface to be cleaned, and hair will not be entangled in the rubber strip. Hair picked up by the rubber strip is more easily sucked into the interior of the cleaning device 10 along the outer edge of the colloid.

[0124] For example, multiple flexible cleaning members 120 can be arranged in parallel and extend axially along the roller 110. In this way, a flexible cleaning member 120 can contact the cleaned surface along the axial direction of the roller brush assembly 100, thereby increasing the cleaning range. Accordingly, the extension direction of the ventilation holes 111 is parallel to the extension direction of the flexible cleaning members 120.

[0125] For example, multiple flexible cleaning members 120 extend spirally along the circumferential outer wall of the drum 110. Thus, as the roller brush assembly 100 rolls along the cleaning direction of the cleaning device 10, the flexible cleaning members 120 at different locations along their extension direction can sequentially contact the surface to be cleaned as the roller brush assembly 100 rolls, without blocking the negative pressure airflow from the suction port, thereby improving the efficiency of dust and hair suction. Accordingly, the extension direction of the ventilation holes 111 is consistent with the extension direction of the flexible cleaning members 120.

[0126] It should be noted that the number of the flexible cleaning members 120 may be two, three, four, five or more, and this embodiment of the present application does not impose any specific limitation thereto.

[0127] In some embodiments, the edge of the flexible cleaning member 120 away from the side of the roller 110 is parallel to or has an angle with the inner wall of the through groove 1151 away from the central axis of the roller 110, thereby ensuring that the flexible cleaning member 120 has a good cleaning effect on the surface to be cleaned in the length direction of the roller 110.

[0128] For example, when the upper edge of the through groove 1151 is an arcuate surface, the tangent line of the upper edge can be parallel to the upper edge of the flexible cleaning member 120. When the upper edge of the through groove 1151 is a plane, the upper edge can be parallel to the upper edge of the flexible cleaning member 120.

[0129] Illustratively, there is an angle between the upper edge surface of the through groove 1151 and the upper edge of the flexible cleaning member 120, including but not limited to 1°, 2°, 10°, 20°, 30°, 45°, 60°, etc., which is not specifically limited in the embodiments of the present application.

[0130] In some embodiments, the flexible cleaning member 120 has a connecting portion 121, which is located within the through-groove 1151. The cross-sectional shape of the connecting portion 121 matches the cross-sectional shape of the through-groove 1151. The surface of the connecting portion 121 away from the central axis of the drum 110 is parallel to or at an angle to the inner wall of the through-groove 1151 on the side closer to the central axis of the drum 110.

[0131] It can be understood that the flexible cleaning member 120 is inserted into the through groove 1151 from the end of the roller 110, and the cross-sectional size of the connecting portion 121 is less than or equal to the cross-sectional size of the through groove 1151. The cooperation between the connecting portion 121 and the through groove 1151 can limit the flexible cleaning member 120 along the radial direction of the roller 110, thereby improving the reliability of the plug-in installation of the flexible cleaning member 120 on the support portion 115 and preventing the flexible cleaning member 120 from shaking or falling off.

[0132] In some embodiments, there may be a plurality of connecting portions 121, which are spaced apart along the length of the through slot 1151. In this way, a sawtooth-like skirt structure may be formed at the bottom edge of the flexible cleaning member 120.

[0133] The ventilation holes 111 may include second ventilation holes 111b, which are disposed on the support portion 115. The second ventilation holes 111b are opposite to the gaps between adjacent connection portions 121, thereby increasing the number of ventilation holes 111 and improving airflow efficiency.

[0134] Exemplarily, the first ventilation holes 111a and the second ventilation holes 111b are staggered along the axial direction of the drum 110 , so that the ventilation holes 111 arranged on the cross section of the drum 110 are honeycomb-shaped, breaking up the airflow and preventing hair from being entangled on the roller brush assembly 100 .

[0135] For example, the first ventilation holes 111a and the second ventilation holes 111b may be arranged in a one-to-one correspondence along the axial direction of the drum to improve the smoothness of airflow.

[0136] In some embodiments, the edge of the flexible cleaning member 120 away from the central axis of the drum 110 forms an angle with the central axis of the drum 110. When the flexible cleaning member 120 is squeezed and deformed when in contact with the surface to be cleaned, the degree of deformation of the flexible cleaning member 120 can be increased, making it easier to lift hair through squeezing and friction.

[0137] For example, the flexible cleaning member 120 may be provided in a raised position in the middle of the axial direction of the drum 110 .

[0138] In some embodiments, the roller brush assembly 100 may further include an end cap 130, which is connected to the axial end of the roller 110. A slot 131 is provided on the side of the end cap 130 facing the flexible cleaning member 120, and the end of the flexible cleaning member 120 is inserted into the slot 131. The end cap 130 can limit the flexible cleaning member 120 along the axial direction of the roller 110, thereby improving the installation stability of the flexible cleaning member 120.

[0139] The depth of the slot 131 along the axial direction of the drum 110 is greater than or equal to 1% of the axial length of the drum 110 and less than or equal to 10% of the axial length of the drum 110. The plug-in connection between the end cap 130 and the flexible cleaning member 120 forms a stop structure to prevent hair fibers from being entangled at the ends of the drum 110.

[0140] For example, the ratio of the groove depth of the slot 131 along the axial direction of the drum 110 to the axial length of the drum 110 can be 1%, 2%, 5%, 9%, 10%, etc., which is not specifically limited in the embodiment of the present application.

[0141] Figure 16 A cross-sectional view of the cleaning device provided in the embodiment of the present application Figure 1 , Figure 17 A cross-sectional view of the cleaning device provided in the embodiment of the present application Figure 2 .

[0142] Please refer to Figure 16 and Figure 17 , and combined with Figures 1 to 8 The present application provides a cleaning device 10, which includes a device body 200 and a roller brush assembly 100 in the above technical solution, and the roller brush assembly 100 is rotatably arranged on the device body 200.

[0143] When cleaning device 10 is performing a cleaning operation, the side of device body 200 connected to roller brush assembly 100 faces the surface to be cleaned, and roller brush assembly 100 can contact the surface to be cleaned. Device body 200 is provided with a motor configured to drive roller brush assembly 100 to rotate. As device body 200 moves, roller brush assembly 100 rolls across the surface to be cleaned, picking up dust, mites, hair, and other debris on the surface to be cleaned, making it easier for these debris to be drawn into device body 200.

[0144] It is understood that the device body 200 is provided with an air suction port 202, which is opposite to the roller brush assembly 100 and communicates with the air suction channel in the device body 200. The device body 200 is provided with a fan and a dust collecting component. The fan is used to generate airflow in the air suction channel to generate suction at the air suction port 202. The sucked-in dust, mites, and fiber hair are stored in the dust collecting component. The dust collecting component is detachably connected to the device body 200 for easy cleaning.

[0145] In some embodiments, the device body 200 is provided with a roller brush cavity 201 having an opening facing one side of the device body 200 , and the roller brush assembly 100 is located in the roller brush cavity 201 and exposed from the opening to contact the surface to be cleaned.

[0146] The contour of the roller brush cavity 201's wall matches that of the roller brush assembly 100, and the outer diameter of the roller brush assembly 100 is 1%-90% of the diameter of the roller brush cavity 201. Compared to existing designs, in this embodiment, the roller brush cavity 201 corresponds to the roller brush assembly 100, increasing the diameter of the roller brush cavity 201. This weakens the effect of the inward suction force of the air intake 202 on hair fibers and reduces the likelihood of hair fibers becoming entangled in the roller brush assembly 100.

[0147] For example, the ratio of the outer diameter of the roller brush assembly 100 to the diameter of the roller brush cavity 201 can be 1%, 2%, 10%, 30%, 50%, 70%, 80%, 89%, 90%, etc., which is not specifically limited in the embodiments of the present application.

[0148] For example, the diameter of the roller brush cavity 201 is greater than or equal to 35 mm and less than or equal to 49 mm. The diameter of the roller brush cavity 201 can be 35 mm, 36 mm, 40 mm, 45 mm, 48 mm, 49 mm, etc., which is not specifically limited in the embodiment of the present application.

[0149] An embodiment of the present application provides a roller brush assembly and a cleaning device, wherein the roller brush assembly is used in the cleaning device, and the roller brush assembly is rotatably mounted on the cleaning device. The roller brush assembly includes a roller and at least one flexible cleaning member, the flexible cleaning member being mounted on the surface of the roller, and the roller being provided with ventilation holes; when the roller brush assembly rotates, the ventilation holes form an air path for airflow. When the roller brush assembly rotates to clean the surface to be cleaned, the negative pressure airflow generated by the cleaning device can flow through the ventilation holes on the roller, thereby increasing the airflow rate sucked into the cleaning device, changing the direction of the suction force generated by the air intake of the cleaning device, improving the overall airflow path of the cleaning device, weakening the effect of the inward suction force on hair fibers, and preventing hair fibers from being entangled in the roller brush assembly.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A roller brush assembly, characterized in that: Used in a cleaning device, wherein the roller brush assembly (100) is rotatably arranged on the cleaning device (10); the roller brush assembly (100) comprises a roller (110) and at least one flexible cleaning member (120); the flexible cleaning member (120) is arranged on the surface of the roller (110) and protrudes relative to the surface of the roller (110); The roller (110) is provided with ventilation holes (111); when the roller brush assembly (100) rotates, the ventilation holes (111) form an air path for air flow, and the air flow direction of the air path forms an angle with the axial direction of the roller (110).

2. The roller brush assembly according to claim 1, characterized in that: In the rotational circumference of the roller brush assembly (100), the ventilation hole (111) penetrates the roller (110).

3. The roller brush assembly according to claim 1, characterized in that: Along the radial direction of the drum (110), a distance exists between the center of the ventilation hole (111) and the rotation axis of the drum (110).

4. The roller brush assembly according to claim 1, characterized in that: The ventilation hole (111) extends along the axial direction of the drum (110); or, the ventilation hole (111) extends spirally along the axial direction of the drum (110).

5. The roller brush assembly according to claim 4, characterized in that: The length of the ventilation hole (111) matches the length of the drum (110).

6. The roller brush assembly according to claim 1, characterized in that: There are a plurality of ventilation holes (111), and the plurality of ventilation holes (111) are arranged at intervals along the axial direction of the drum (110).

7. The roller brush assembly according to claim 6, characterized in that: The drum (110) has a plurality of baffle structures (112), and the ventilation holes (111) are formed between adjacent baffle structures (112).

8. The roller brush assembly according to any one of claims 1 to 7, characterized in that: The area of the ventilation hole (111) is S1, and the axial cross-sectional area of the roller (110) is S2, wherein 1%≤S1 / S2<1.

9. The roller brush assembly according to any one of claims 1 to 7, characterized in that: The roller (110) comprises a roller (113), two connecting ends (114) and at least one supporting portion (115), wherein the two connecting ends (114) are respectively connected to two axial ends of the roller (113), and two ends of the supporting portion (115) are respectively connected to the connecting ends (114) at two ends of the roller (113); The ventilation hole (111) comprises a first ventilation hole (111a), and a distance is provided between the support portion (115) and the roller (113) to form the first ventilation hole (111a).

10. The roller brush assembly according to any one of claims 1 to 7, characterized in that: The roller (110) comprises a roller body (113), and the ventilation hole (111) is opened in the roller body (113) and penetrates the outer surface of the roller body (113).

11. The roller brush assembly according to any one of claims 1 to 7, characterized in that: The drum (110) comprises two connecting ends (114) and a plurality of supporting portions (115), both ends of the plurality of supporting portions (115) being respectively connected to the two connecting ends (114) and being arranged at intervals around the circumference of the connecting ends (114) to enclose and form the ventilation holes (111).

12. The roller brush assembly according to claim 9, characterized in that: The support portion (115) is provided with a through groove (1151) extending axially along the roller brush assembly (100), and the flexible cleaning member (120) is inserted into the through groove (1151); at least part of the structure of the flexible cleaning member (120) protrudes from the through groove (1151) along the radial direction of the roller (110) to the outside of the roller (110).

13. The roller brush assembly according to claim 12, characterized in that: The edge of the flexible cleaning member (120) on the side away from the drum (110) is parallel to or has an angle with the inner wall of the through groove (1151) on the side away from the central axis of the drum (110).

14. The roller brush assembly according to claim 12, characterized in that: The flexible cleaning member (120) has a connecting portion (121), the connecting portion (121) is located in the through-groove (1151), and the cross-sectional shape of the connecting portion (121) matches the cross-sectional shape of the through-groove (1151); the surface of the connecting portion (121) away from the central axis of the drum (110) is parallel to or has an angle with the inner wall of the through-groove (1151) on the side close to the central axis of the drum (110).

15. The roller brush assembly according to claim 14, characterized in that: There are a plurality of connecting portions (121), and the plurality of connecting portions (121) are arranged at intervals along the length direction of the through slot (1151); The ventilation hole (111) comprises a second ventilation hole (111b), the second ventilation hole (111b) being arranged on the support portion (115), and the second ventilation hole (111b) being opposite to the gap between the adjacent connecting portions (121).

16. The roller brush assembly according to claim 15, characterized in that: The first ventilation holes (111a) and the second ventilation holes (111b) are staggered along the axial direction of the drum (110); or, the first ventilation holes (111a) and the second ventilation holes (111b) are arranged in a one-to-one correspondence along the axial direction of the drum (110).

17. The roller brush assembly according to any one of claims 1 to 7, characterized in that: An edge of the flexible cleaning member (120) that is away from the central axis of the drum (110) forms an angle with the central axis of the drum (110).

18. The roller brush assembly according to any one of claims 1 to 7, characterized in that: The roller brush assembly (100) further comprises an end cap (130), the end cap (130) being connected to an axial end of the roller (110), a slot (131) being provided on a side of the end cap (130) facing the flexible cleaning member (120), the end of the flexible cleaning member (120) being inserted into the slot (131); wherein a groove depth of the slot (131) along the axial direction of the roller (110) is greater than or equal to 1% of the axial length of the roller (110) and less than or equal to 10% of the axial length of the roller (110).

19. A cleaning device, characterized in that: The cleaning device comprises a device body (200) and a roller brush assembly (100) according to any one of claims 1 to 18, wherein the roller brush assembly (100) is rotatably arranged on the device body (200).

20. The cleaning device according to claim 19, characterized in that The device body is provided with a roller brush cavity (201), the roller brush cavity (201) having an opening facing one side of the device body, the roller brush assembly being located in the roller brush cavity (201) and exposed from the opening to contact the surface to be cleaned; The contour shape of the cavity wall of the roller brush cavity (201) matches the contour shape of the roller brush assembly; and the outer contour diameter of the roller brush assembly (100) is 1%-90% of the diameter of the roller brush cavity (201).

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