Roller, roller brush assembly and cleaning apparatus

Abstract

The present application relates to the technical field of cleaning products. Provided are a roller, a roller brush assembly and a cleaning apparatus. The roller provided in the present application is applied to a cleaning apparatus, and the roller is rotationally arranged on the cleaning apparatus. The cleaning apparatus is provided with an air suction port, and the roller is opposite the air suction port. The roller is provided with air-passing holes; the air-passing holes extend through the roller; and an included angle is formed between the extension direction of each air-passing hole and the axial direction of the roller. When the roller rotates, each air-passing hole forms an air path along which an airflow flows, such that the airflow passes through the air-passing hole and enters the air suction port. Therefore, when a roller brush assembly rotates to clean a surface to be cleaned, a negative pressure airflow formed by the cleaning apparatus can flow through the air-passing holes in the roller, thereby changing the direction of a suction force generated at the air suction port of the cleaning apparatus, improving the whole-unit airflow air path of the cleaning apparatus, and reducing the effect of an inward suction force on hair fibers, and thus preventing the hair fibers from winding around the roller.

Description

Rollers, roller brush assemblies and cleaning equipment

[0001] This application claims priority to Chinese Patent Application No. 202510125326.5, filed on January 26, 2025, and filed with the China National Intellectual Property Administration, entitled "Roller Brush Assembly and Cleaning Equipment," the entire contents of which are incorporated herein by reference. This application also claims priority to Chinese Patent Application No. 202520691806.3, filed on April 11, 2025, and filed with the China National Intellectual Property Administration, entitled "Roller Brush and Cleaning Equipment," the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of cleaning product technology, and more particularly to a roller, roller brush assembly and cleaning equipment. Background Technology

[0003] Cleaning devices such as mite removers, vacuum cleaners, and robotic vacuum cleaners are commonly used in households. Vacuum cleaners and robotic vacuum cleaners can clean floors, while mite removers can remove dust and worms from surfaces such as mattresses and leather.

[0004] In related technologies, cleaning equipment typically includes a housing and a fan unit installed inside the housing. The airflow generated by the fan unit creates suction at the air inlet of the housing. A roller brush can be installed at the position corresponding to the air inlet. The roller brush rolls on the surface to be cleaned, picking up dust and hair, and the suction from the air inlet draws the dust and hair into the equipment, thus achieving the cleaning function.

[0005] However, under the suction of the air inlet, hair fibers easily get tangled on the roller brush as it rotates, making them difficult to clean. Summary of the Invention

[0006] This application provides a roller, a roller brush assembly, and a cleaning device to solve the technical problem that hair fibers easily become entangled on the roller brush as it rotates under the suction force of the air inlet, making them difficult to clean.

[0007] In a first aspect, this application provides a roller for use in a cleaning device, wherein the roller is rotatably mounted on the cleaning device; the cleaning device has an air intake, and the roller is opposite to the air intake.

[0008] The drum is equipped with ventilation holes; when the drum rotates, the ventilation holes form an air passage for airflow, and the airflow direction of the air passage is at an angle to the axis of the drum.

[0009] This application provides a method to create an airflow path on the roller by setting ventilation holes on the roller. In this way, when the roller rotates to clean the surface to be cleaned, the negative pressure airflow generated by the cleaning equipment can flow through the ventilation holes on the roller, changing the direction of the suction force generated by the air inlet of the cleaning equipment, improving the overall airflow path of the cleaning equipment, reducing the impact of inward suction on hair fibers, and preventing hair fibers from getting tangled on the roller.

[0010] As an alternative implementation, ventilation holes penetrate the drum in the circumferential direction of its rotation.

[0011] This design allows airflow to pass through the roller quickly, improving airflow efficiency.

[0012] As an alternative implementation, the center of the ventilation hole is spaced from the axis of rotation of the roller along the radial direction of the roller.

[0013] With this setup, as the roller rotates, it can drive the airflow, increasing the speed at which the cleaning equipment draws in air.

[0014] As an alternative implementation, the ventilation holes extend axially along the roller; or, the ventilation holes extend spirally along the roller.

[0015] This design increases the ventilation area along the length of the roller, improving airflow efficiency.

[0016] As an alternative implementation, the length of the ventilation hole is matched with the length of the roller.

[0017] With this design, airflow can pass through the ventilation holes in all areas cleaned along the length of the roller, preventing fibers and hair from getting tangled on the roller.

[0018] As an optional implementation, there can be multiple ventilation holes, which are spaced apart along the axial direction of the roller.

[0019] This configuration increases the number of airflow paths through the roller, improving cleaning performance.

[0020] As an alternative implementation, the roller has multiple baffle structures with ventilation holes formed between adjacent baffle structures.

[0021] With this configuration, the baffle structure can provide support and reinforcement, thereby increasing the structural strength of the roller.

[0022] This design ensures efficient airflow while maintaining good structural strength of the roller.

[0023] As an optional implementation, the area of ​​the ventilation hole is S1, and the axial cross-sectional area of ​​the roller is S2, wherein 1% ≤ S1 / S2 < 1, to ensure smooth airflow.

[0024] As an optional implementation, the roller may include a roller body, two connecting ends and at least one support portion, with the two connecting ends respectively connected to both ends of the roller body in the axial direction, and the two ends of the support portion respectively connected to the connecting ends at both ends of the roller body.

[0025] The ventilation hole may include a first ventilation hole, and there is a gap between the support and the roller to form the first ventilation hole.

[0026] This design increases the overall outer diameter of the roller, weakens the effect of the inward suction of the cleaning device on hair fibers, and reduces hair tangling.

[0027] As an alternative implementation, the roller includes a roller body, with ventilation holes formed in the roller body and extending through its outer surface. This allows the ventilation holes to be formed directly during the roller body machining process, reducing production costs.

[0028] As an optional implementation, the roller includes two connecting ends and multiple supporting parts. Both ends of the multiple supporting parts are connected to the two connecting ends respectively, and they are spaced apart circumferentially around the connecting ends to form ventilation holes. This allows the roller to have a hollow structure overall, increasing the ventilation capacity of the ventilation holes.

[0029] Secondly, this application provides a roller brush assembly, which includes a flexible cleaning component and a roller as described above; the flexible cleaning component is connected to the roller.

[0030] As an optional implementation, the roller includes a roller body, two connecting ends, and at least one support portion. The two connecting ends are respectively connected to both ends of the roller body in the axial direction, and both ends of the support portion are respectively connected to the connecting ends at both ends of the roller body. A ventilation hole includes a first ventilation hole, and a gap exists between the support portion and the roller body to form the first ventilation hole.

[0031] As an alternative implementation, the support portion is provided with a through groove extending axially along the roller brush assembly, and a flexible cleaning element is inserted into the through groove; at least a portion of the structure of the flexible cleaning element protrudes radially from the through groove to the outside of the roller.

[0032] This design improves the cleaning effect by using flexible cleaning components to squeeze and rub the surface to be cleaned.

[0033] As an alternative implementation, the edge of the flexible cleaning element on the side away from the roller is parallel to or at an angle to the inner wall of the through groove on the side away from the roller's central axis.

[0034] This configuration ensures that the flexible cleaning components provide a good cleaning effect on all surfaces to be cleaned along the length of the roller.

[0035] As an alternative implementation, the flexible cleaning component has a connecting portion located within the through groove, the cross-sectional shape of the connecting portion matching the cross-sectional shape of the through groove; the surface of the connecting portion away from the central axis of the roller is parallel to or at an angle to the inner wall of the through groove on the side closer to the central axis of the roller.

[0036] This design improves the reliability of the flexible cleaning component's insertion and installation on the support, preventing the flexible cleaning component from shaking or falling off.

[0037] As an optional implementation, there can be multiple connecting parts, which are spaced apart along the length of the through groove.

[0038] The ventilation hole may include a second ventilation hole, which is disposed on the support portion, and the gap between the second ventilation hole and the adjacent connecting portion is opposite.

[0039] This design increases the number of ventilation holes and improves airflow efficiency.

[0040] As an optional implementation, the first ventilation hole and the second ventilation hole are offset along the axial direction of the roller; or, the first ventilation hole and the second ventilation hole are arranged in a one-to-one correspondence along the axial direction of the roller.

[0041] This design creates a honeycomb-like ventilation hole pattern on the roller cross-section, which disperses the airflow and prevents hair from getting tangled on the roller brush assembly.

[0042] As an alternative implementation, the edge of the flexible cleaning element on the side away from the central axis of the roller has an angle with the central axis of the roller; or, the flexible cleaning element is disposed on the surface of the roller and protrudes relative to the surface of the roller.

[0043] This design increases the degree of deformation of the flexible cleaning component, which lifts the hair through squeezing and friction.

[0044] As an optional implementation, the roller brush assembly may further include an end cap connected to the axial end of the roller, with a slot on the side of the end cap facing the flexible cleaning element, the end of the flexible cleaning element being inserted into the slot; wherein the groove depth of the slot along the roller axial direction 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.

[0045] This design improves the installation stability of the flexible cleaning components while preventing hair fibers from getting tangled on both ends of the roller.

[0046] Thirdly, this application provides a cleaning device, which includes a device body and a roller brush assembly of the above-mentioned technical solution. The device body is provided with a roller brush cavity, and the roller brush assembly is rotatably disposed in the roller brush cavity.

[0047] 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 can be solved by the rollers, roller brush assemblies, and cleaning equipment provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0048] 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.

[0049] Figure 1 is a schematic diagram of the roller brush assembly provided in the embodiment of this application applied to a cleaning equipment;

[0050] Figure 2 is a schematic diagram of the structure of the roller brush assembly provided in an embodiment of this application;

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

[0052] Figure 4 is a cross-sectional view of position AA in Figure 3;

[0053] Figure 5 is a schematic diagram of the structure of the roller in the roller brush assembly provided in the embodiment of this application;

[0054] Figure 6 is a front view of the roller in the roller brush assembly provided in the embodiment of this application;

[0055] Figure 7 is a cross-sectional view of the BB position in Figure 6;

[0056] Figure 8 is a cross-sectional view of the CC position in Figure 6;

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

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

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

[0060] Figure 12 is a schematic diagram of the flexible cleaning component in the roller brush assembly provided in this embodiment of the application.

[0061] Figure 13 is a schematic diagram of the structure of the flexible cleaning component in the roller brush assembly provided in this embodiment of the application.

[0062] Figure 14 is a front view of the flexible cleaning component in the roller brush assembly provided in the embodiment of this application;

[0063] Figure 15 is a schematic diagram of the structure of the flexible cleaning component in the roller brush assembly provided in this embodiment of the application.

[0064] Figure 16 is a cross-sectional view of the cleaning equipment provided in an embodiment of this application;

[0065] Figure 17 is a second cross-sectional view of the cleaning equipment provided in an embodiment of this application;

[0066] Figure 18 is a schematic diagram of the roller brush assembly provided in the embodiment of this application applied to a cleaning equipment;

[0067] Figure 19 is a schematic diagram of the structure of the roller brush assembly provided in Embodiment 1 of this application;

[0068] Figure 20 is an exploded view of the roller brush assembly provided in Embodiment 1 of this application;

[0069] Figure 21 is a front view of the roller brush assembly provided in Embodiment 1 of this application;

[0070] Figure 22 is a cross-sectional view of position AA in Figure 21;

[0071] Figure 23 is a cross-sectional structural diagram of the roller brush assembly provided in Embodiment 1 of this application;

[0072] Figure 24 is a front view of the bracket and flexible cleaning component provided in Embodiments 1 and 2 of this application;

[0073] Figure 25 is a side view of the bracket and flexible cleaning component provided in Embodiments 1 and 2 of this application;

[0074] Figure 26 is a schematic diagram of the roller brush assembly structure provided in Embodiment 2 of this application;

[0075] Figure 27 is a front view of the roller brush assembly provided in Embodiment 2 of this application;

[0076] Figure 28 is a cross-sectional view of the location BB in Figure 27;

[0077] Figure 29 is a structural schematic diagram of the bracket and flexible cleaning component provided in Embodiment 2 of this application;

[0078] Figure 30 is a front view of the roller brush assembly provided in Embodiment 3 of this application;

[0079] Figure 31 is a cross-sectional view of the CC position in Figure 30;

[0080] Figure 32 is a side sectional view of the roller provided in Embodiment 3 of this application;

[0081] Figure 33 is a structural schematic diagram of the bracket and flexible cleaning component provided in Embodiment 3 of this application;

[0082] Figure 34 is a side sectional view of the bracket and flexible cleaning component provided in Embodiment 3 of this application;

[0083] Figure 35 is an exploded view of the bracket and flexible cleaning component provided in Embodiment 3 of this application.

[0084] Explanation of reference numerals in the attached drawings: 10-Cleaning equipment; 100-Roller brush assembly; 110-Roller; 111-Ventilation hole; 1101-Snap fastener; 111a-First ventilation hole; 111b-Second ventilation hole; 1111-Protrusion; 1111a-First guide slope; 112-Baffle structure; 113-Roller body; 114-Connecting end; 1141-Limiting groove; 115-Support part; 1151-Through groove; 116-Cylindrical part; 117-Slot; 118-Bracket; 1181-Second guide slope; 1182-Boss; 119-Interlocking groove; 120-Flexible cleaning component; 121-Connecting part; 130-End cap; 131-Slot; 140-Airflow gap;

[0085] 200 - Main body of the equipment; 201 - Roller brush chamber; 202 - Air intake. Detailed Implementation

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] Cleaning devices such as mite removers, vacuum cleaners, and robotic vacuum cleaners are commonly used in households. Vacuum cleaners and robotic vacuum cleaners can clean floors, while mite removers can remove dust and worms from surfaces such as mattresses and leather. Cleaning devices typically consist of a casing and a fan unit housed within it. The airflow generated by the fan unit creates suction at the air inlet on the casing. A roller brush can be positioned at the air inlet; this brush rolls across the surface being cleaned, picking up dust and hair, which are then drawn into the device by the suction, thus achieving the cleaning function.

[0092] However, under the suction of the air inlet, hair fibers easily get tangled on the roller brush as it rotates, and the tangling becomes tighter and tighter, making it difficult for the roller brush to clean.

[0093] In addition, when cleaning soft surfaces such as bedding, clothes, and sofas, current cleaning equipment often results in concave surfaces where hair fibers tend to adhere and are difficult to be sucked into the cleaning equipment. As a result, even with repeated cleaning and the roller brush rolling back and forth, it is still difficult to remove all hair fibers, leading to poor cleaning results.

[0094] To address the aforementioned technical problems, this application provides a roller brush assembly and a cleaning device. The roller brush assembly, through its roller structure design, incorporates ventilation holes on the roller. This allows airflow to pass through the periphery of the roller brush assembly during cleaning, while additional airflow paths are formed on the roller of the roller brush assembly. This alters the direction of suction generated by the air inlet on the cleaning device, thereby improving the overall airflow layout of the cleaning device. It also prevents hair fibers from becoming entangled on the roller brush assembly, making it easier for any attached hair fibers to be drawn into the cleaning device, resulting in a better cleaning effect.

[0095] The following is an example illustrating the application scenarios of the roller brush assembly and cleaning equipment provided in the embodiments of this application.

[0096] The roller brush assembly provided in this application embodiment is used in cleaning equipment. The cleaning equipment is a cleaning tool with a roller brush structure. Specifically, the product type of the cleaning equipment in this application embodiment may include, but is not limited to, mite removers, vacuum cleaners, sweeping machines, and robotic vacuum cleaners. Depending on the product type, the cleaning equipment provided in this application embodiment can be used for carpets, bed sheets and quilts, sofas, clothing, etc. This application embodiment does not make specific limitations in this regard.

[0097] Figure 1 is a schematic diagram of the roller brush assembly provided in this application applied to a cleaning device; Figure 2 is a structural schematic diagram of the roller brush assembly provided in this application; Figure 3 is a front view of the roller brush assembly provided in this application; Figure 4 is a cross-sectional view at position AA in Figure 3; Figure 5 is a structural schematic diagram of the roller in the roller brush assembly provided in this application; Figure 6 is a front view of the roller in the roller brush assembly provided in this application; Figure 7 is a cross-sectional view at position BB in Figure 6; Figure 8 is a cross-sectional view at position CC in Figure 6.

[0098] Referring to Figures 1 to 8, this application embodiment provides a roller brush assembly 100, which is applied in a cleaning device 10. When the cleaning device 10 cleans a 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 lint adhering to the surface.

[0099] The roller brush assembly 100 provided in this application embodiment includes a roller 110 and at least one flexible cleaning element 120, the flexible cleaning element 120 being disposed on the surface of the roller 110. The roller 110 is rotatably connected to the cleaning device 10, and the roller 110 supports the flexible cleaning element 120. The flexible cleaning element 120 is elastic, and when the flexible cleaning element 120 contacts the surface to be cleaned, it can be squeezed to generate elastic deformation, thereby increasing its friction with the surface to be cleaned. Through friction and patting of the surface to be cleaned, it picks up the attached dust and fibers.

[0100] The roller 110 is provided with ventilation holes 111. When the roller brush assembly 100 rotates, the ventilation holes 111 form an air passage for airflow, and the airflow direction of the air passage is at an angle to the axial direction of the roller 110.

[0101] It is understandable that a fan can be installed on the cleaning device 10 to generate negative pressure airflow. The negative pressure airflow is used in conjunction with the roller brush assembly 100 to use negative pressure suction to draw dust and hair fibers from the surface to be cleaned into the cleaning device 10.

[0102] In this embodiment, the negative pressure airflow generated on the cleaning device 10 can flow through the periphery of the roller brush assembly 100 on the one hand, and through the air path formed by the ventilation hole 111 on the other hand, so that the periphery of the roller 110 and the roller 110 itself can form an air path for airflow, thereby improving the air volume and airflow efficiency, and thus avoiding hair fibers remaining on the surface to be cleaned.

[0103] It should be noted that when the roller brush assembly 100 rotates to clean the surface to be cleaned, the negative pressure airflow generated by the cleaning device 10 can flow through the ventilation holes 111 on the roller 110. The soft cleaning parts on the surface of the roller 110 can still provide a good cleaning effect of friction and patting on the surface to be cleaned. At the same time, the roller 110 does not completely block the airflow, thereby changing the direction of the suction force generated by the air intake on the cleaning device 10. Some airflow bypasses the outside of the roller 110, but some airflow can pass directly through the roller 110, reducing wind resistance and improving the overall airflow path of the cleaning device 10. This prevents hair fibers from getting tangled on the roller brush assembly 100, making it easier for hair fibers to be sucked into the cleaning device 10 and improving the cleaning effect.

[0104] The structure of the ventilation hole 111 will be described in detail below.

[0105] Please continue to refer to Figures 1 to 8. In some embodiments, in the circumferential direction of the rotation of the roller brush assembly 100, the ventilation hole 111 penetrates the baffle structure 112, thereby allowing airflow to pass through the roller 110 quickly and improving airflow efficiency.

[0106] It is understandable that on the cleaning device 10, the air inlet opposite to the roller brush assembly 100 is usually located on the side of the roller brush assembly 100. When the air inlet 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 roller 110, and the airflow is more likely to pass through the roller 110 radially and be sucked into the air inlet.

[0107] In some embodiments, the center of the ventilation hole 111 is spaced from the axis of rotation of the roller 110 along the radial direction of the roller 110.

[0108] The ventilation holes 111 are offset relative to the central axis of the roller 110. This allows airflow to pass more easily along the rotation direction of the ventilation holes 111 as the roller brush assembly 100 rotates at high speed, thus significantly reducing airflow resistance. Furthermore, the rotation of the roller brush assembly 100 drives airflow, increasing the speed at which the cleaning device 10 draws in air.

[0109] For example, the ventilation hole 111 can extend along the axial direction of the roller 110, thereby increasing the ventilation area in the length direction of the roller brush assembly 100 and improving airflow efficiency.

[0110] For example, the ventilation hole 111 extends spirally along the axial direction of the roller. The extending direction of the ventilation hole 111 is consistent with the extending direction of the baffle structure 112, and the overall outline of the roller brush assembly 100 can be a twisted structure.

[0111] The airflow through the ventilation hole 111 can flow in any direction except parallel to the axial direction of the roller 110.

[0112] It should be noted that the extension direction of the ventilation hole 111 can be parallel to the axial direction of the roller 110, or it can have a certain angle with the axial direction of the roller 110. The shape of the ventilation hole 111 can be square, rectangular, round, elliptical, or other shapes, and this application embodiment does not specifically limit it.

[0113] Furthermore, multiple areas with ventilation holes 111 can be provided around the roller 110. For example, the ventilation holes 111 can be positioned opposite the flexible cleaning element 120. As the roller brush assembly 100 rotates, an approximately annular airflow path can be formed on the roller 110, into which airflow from outside the roller brush assembly 100 can enter and exit near the suction port of the cleaning device 10.

[0114] In each corresponding area of ​​the circumference of the roller 110, a single ventilation hole 111 or multiple ventilation holes 111 can be provided, which will be explained in detail below.

[0115] Figure 9 is a schematic diagram of another structure of the roller brush assembly provided in the embodiment of this application; Figure 10 is a schematic diagram of the roller in another structure of the roller brush assembly provided in the embodiment of this application; Figure 11 is a cross-sectional view of the roller in another structure of the roller brush assembly provided in the embodiment of this application.

[0116] Referring to Figures 9 to 11, in some embodiments, when the vent 111 is a single vent, the length of the vent 111 matches the length of the roller 110. Airflow can pass through the vent 111 to all areas cleaned along the length of the roller brush assembly 100, thereby preventing fibers and hair from getting tangled on the roller 110.

[0117] Please continue to refer to Figures 1 to 8. In some other embodiments, there may be multiple ventilation holes 111. The multiple ventilation holes 111 are spaced apart along the axial direction of the roller 110, thereby increasing the number of airflow paths passing through the roller 110 and improving the cleaning effect.

[0118] It is understandable that when the roller brush assembly 100 rotates, each ventilation hole 111 can be understood as forming an air path. Multiple air paths can disperse the airflow passing through the roller 110, thereby reducing wind resistance and reducing the noise generated when the roller brush assembly 100 rotates for cleaning.

[0119] For example, the roller 110 has multiple baffle structures 112, with ventilation holes 111 formed between adjacent baffle structures 112. The baffle structures 112 can provide support and reinforcement, improving the structural strength of the roller 110. This application embodiment does not limit the specific number of baffle structures 112.

[0120] In this embodiment, the volume of the baffle structure 112 is greater than or equal to 1% of the volume of the roller 110, and less than or equal to 80% of the volume of the roller 110. While ensuring airflow efficiency, this ensures that the roller 110 has good structural strength.

[0121] For example, the ratio of the volume of the baffle structure 112 to the volume of the roller 110 can be 1%, 2%, 10%, 30%, 45%, 60%, 70%, 79%, 80%, etc., and this application embodiment does not specifically limit it.

[0122] It should be noted that the baffle structure 112 can be welded to the main body structure of the roller 110, or the baffle structure 112 can be integrally formed with the roller 110. This application embodiment does not specifically limit this.

[0123] In some embodiments, 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, so as to ensure smooth airflow.

[0124] It is understandable that the area S1 of the ventilation hole 111 refers to the sum of the areas of all ventilation holes 111 on the axial section of the roller 110.

[0125] It should be noted that the ventilation hole 111 can be formed by different structures on the roller 110, and correspondingly, the roller 110 can be designed in different structural forms.

[0126] The structure of roller 110 will be described in detail below.

[0127] Please continue to refer to Figures 1 to 8. In some embodiments, the roller 110 may include a roller body 113 and a connecting end 114, the baffle structure 112 may include a support portion 115, the connecting end 114 is connected to both ends of the roller body 113 in the axial direction, and the two ends of the support portion 115 are respectively connected to the connecting ends 114 at both ends of the roller body 113.

[0128] Understandably, 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 maximum radial cross-section of the roller 113, thereby supporting the overall frame structure of the roller 110. The support portion 115 is used to install the flexible cleaning component 120.

[0129] The ventilation hole 111 may include a first ventilation hole 111a. There is a gap between the support part 115 and the roller 113 to form the first ventilation hole 111a. This can improve the convenience of processing and forming the roller 110 and reduce the production cost.

[0130] For example, the support portion 115 can be welded to the connecting end 114, or the roller 113, the connecting end 114 and the support portion 115 can be integrally formed. This application embodiment does not specifically limit this.

[0131] In other embodiments, the roller 110 includes a roller body 113, with ventilation holes 111 formed in the roller body 113 and extending through its outer surface. This allows the ventilation holes 111 to be formed directly during the machining of the roller body 113, reducing production costs.

[0132] Understandably, compared to the previous example, in this example, the ventilation hole 111 is directly disposed on the roller 113. The roller 113 has a cylindrical structure, and both ends of the ventilation hole 111, which are for air inlet and outlet, are located on the outer surface of the roller 113.

[0133] In another embodiment, the roller 110 may include two connecting ends 114 and a plurality of support portions 115. Both ends of the plurality of support portions 115 are respectively connected to the two connecting ends 114 and are spaced apart around the connecting ends 114 to form ventilation holes 111. In this way, the roller 110 can have a hollow structure as a whole, increasing the ventilation volume of the ventilation holes 111.

[0134] It is understandable that, compared with the previous example, this example may not have a roller 113. Instead, a cage-like frame structure is formed by the connecting end 114 and the support part 115, which can maximize the ventilation area of ​​the ventilation hole 111.

[0135] Figure 12 is a schematic diagram of the flexible cleaning component in the roller brush assembly provided in the embodiment of this application (first); Figure 13 is a schematic diagram of the flexible cleaning component in the roller brush assembly provided in the embodiment of this application (second); Figure 14 is a front view of the flexible cleaning component in the roller brush assembly provided in the embodiment of this application (third); Figure 15 is a schematic diagram of the flexible cleaning component in the roller brush assembly provided in the embodiment of this application (third).

[0136] Referring to Figures 12 to 15, and in conjunction 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 structure of the flexible cleaning member 120 protrudes radially from the through groove 1151 to the outside of the roller 110. By squeezing and rubbing the surface to be cleaned by the flexible cleaning member 120, the cleaning effect can be improved.

[0137] There can be multiple flexible cleaning components 120, and the multiple flexible cleaning components 120 are arranged at intervals along the circumference of the roller 110.

[0138] Understandably, during the rotation and cleaning process of the roller brush assembly 100, multiple flexible cleaning elements 120 can sequentially contact and pat the surface to be cleaned, so that the roller brush assembly 100 can have a better cleaning effect.

[0139] For example, the flexible cleaning element 120 can be one or a combination of adhesive strips, brushes, etc. For instance, the flexible cleaning element 120 can be an adhesive strip. When an adhesive is used as the flexible cleaning element 120, the adhesive strip can pat the surface to be cleaned, and hair will not get tangled on the adhesive strip. The hair carried by the adhesive strip is more easily sucked into the interior of the cleaning device 10 along the outer edge of the adhesive.

[0140] For example, multiple flexible cleaning elements 120 can be arranged in parallel and all extend along the axial direction of the roller 110. This ensures that a flexible cleaning element 120 can contact the surface being cleaned along the axial direction of the roller brush assembly 100, increasing the cleaning range. Correspondingly, the extending direction of the ventilation holes 111 is parallel to the extending direction of the flexible cleaning elements 120.

[0141] For example, multiple flexible cleaning elements 120 extend spirally along the circumferential outer wall of the roller 110. Thus, as the roller brush assembly 100 rolls along the cleaning direction of the cleaning device 10, different positions along the extension direction of the flexible cleaning elements 120 can sequentially contact the surface to be cleaned as the roller brush assembly 100 rolls, without obstructing the negative pressure airflow of the suction port, thereby improving the efficiency of dust and hair suction. Correspondingly, the extension direction of the ventilation holes 111 is consistent with the extension direction of the flexible cleaning elements 120.

[0142] It should be noted that the number of flexible cleaning parts 120 can be two, three, four, five or more, and this application embodiment does not specifically limit this.

[0143] In some embodiments, the edge of the flexible cleaning member 120 away from the roller 110 is parallel to or at an angle to 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.

[0144] For example, when the upper edge of the through groove 1151 is an arc-shaped surface, the tangent of its 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, its upper edge can be parallel to the upper edge of the flexible cleaning member 120.

[0145] For example, the upper edge of the through groove 1151 and the upper edge of the flexible cleaning member 120 have an angle, including but not limited to 1°, 2°, 10°, 20°, 30°, 45°, 60°, etc., and the embodiments of this application do not specifically limit this.

[0146] In some embodiments, the flexible cleaning member 120 has a connecting portion 121 located within 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 on the side away from the central axis of the roller 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 roller 110.

[0147] It is understandable that the flexible cleaning component 120 is inserted into the through groove 1151 from the end of the roller 110. The cross-sectional dimension of the connecting part 121 is less than or equal to the cross-sectional dimension of the through groove 1151. The cooperation between the connecting part 121 and the through groove 1151 can limit the flexible cleaning component 120 radially along the roller 110, improve the reliability of the flexible cleaning component 120 being inserted and installed on the support part 115, and prevent the flexible cleaning component 120 from shaking or falling off.

[0148] In some embodiments, there may be multiple connecting portions 121, which are spaced apart along the length of the through groove 1151. This allows a serrated skirt-like structure to be formed along the lower edge of the flexible cleaning member 120.

[0149] The ventilation hole 111 may include a second ventilation hole 111b, which is disposed on the support portion 115. The gap between the second ventilation hole 111b and the adjacent connecting portion 121 is opposite, thereby increasing the number of ventilation holes 111 and improving airflow efficiency.

[0150] For example, the first ventilation hole 111a and the second ventilation hole 111b are offset along the axial direction of the roller 110, so that the ventilation holes 111 on the cross section of the roller 110 are honeycomb-shaped, which disperses the airflow and prevents hair from being confined and wrapped on the roller brush assembly 100.

[0151] For example, the first ventilation hole 111a and the second ventilation hole 111b can be arranged one-to-one along the axial direction of the roller to improve the smoothness of airflow.

[0152] In some embodiments, the edge of the flexible cleaning element 120 on the side away from the central axis of the roller 110 forms an angle with the central axis of the roller 110. When the flexible cleaning element 120 comes into contact with the surface to be cleaned and is squeezed and deformed, the degree of deformation of the flexible cleaning element 120 can be increased, and hair can be more easily lifted by squeezing friction.

[0153] For example, the flexible cleaning element 120 may be provided with a protrusion at the center position along the axial direction of the roller 110.

[0154] 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. The end cap 130 has a slot 131 on the side 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.

[0155] The groove depth of slot 131 along the axial direction of roller 110 is greater than or equal to 1% of the axial length of roller 110 and less than or equal to 10% of the axial length of roller 110. The insertion and engagement of end cap 130 and flexible cleaning component 120 can form a stop structure to prevent hair fibers from getting tangled at both ends of roller 110.

[0156] For example, the ratio of the groove depth of the slot 131 along the axial direction of the roller 110 to the axial length of the roller 110 can be 1%, 2%, 5%, 9%, 10%, etc., and this application embodiment does not specifically limit it.

[0157] Figure 16 is a cross-sectional view of the cleaning equipment provided in the embodiment of this application, and Figure 17 is a cross-sectional view of the cleaning equipment provided in the embodiment of this application.

[0158] Please refer to Figures 16 and 17, and in conjunction with Figures 1 to 8, this application provides a cleaning device 10, which includes a device body 200 and a roller brush assembly 100 as described above. The roller brush assembly 100 is rotatably mounted on the device body 200.

[0159] During cleaning operations, the side of the main body 200 connected to the roller brush assembly 100 faces the surface to be cleaned, allowing the roller brush assembly 100 to contact the surface. A motor is mounted on the main body 200, configured to drive the roller brush assembly 100 to rotate. As the main body 200 moves, the roller brush assembly 100 rolls on the surface to be cleaned, carrying up dust, mites, hair, and other debris, making it easier for these impurities to be sucked into the main body 200.

[0160] Understandably, the main body 200 of the device is equipped with an air intake 202, which is opposite to the roller brush assembly 100 and is connected to the air intake channel inside the main body 200. The main body 200 is equipped with a fan and a dust collection component. The fan is used to generate airflow in the air intake channel to create suction at the air intake 202. The sucked-in dust, mites, and fibers are stored in the dust collection component, which is detachably connected to the main body 200 for easy cleaning.

[0161] In some embodiments, the device body 200 is provided with a roller brush cavity 201, the roller brush cavity 201 having an opening facing one side of the device body 200, the roller brush assembly 100 being located in the roller brush cavity 201 and exposed from the opening to contact the surface to be cleaned.

[0162] In this embodiment, the contour shape of the brush cavity 201 matches the contour shape of the brush assembly 100, and the outer contour diameter of the brush assembly 100 is 1%-90% of the diameter of the brush cavity 201. Compared with the prior art, in this embodiment, the brush cavity 201 corresponds to the brush assembly 100, and the diameter of the brush cavity 201 is increased, which weakens the influence of the inward suction force of the air inlet 202 on the hair fibers and reduces the possibility of hair fibers getting tangled on the brush assembly 100.

[0163] For example, the ratio of the outer contour 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., and this application embodiment does not specifically limit it.

[0164] 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., and this application embodiment does not specifically limit it.

[0165] Referring to Figures 18 to 25, this application embodiment provides a roller brush assembly 100, which includes a roller 110. The roller 110 includes a roller body 113 and at least one bracket 118. The roller body 113 is rotatably connected to the main body of the cleaning device 10. The bracket 118 is detachably connected to the side of the roller body 113. To improve cleaning efficiency, multiple brackets 118 can be provided. When the cleaning device 10 performs cleaning work, the roller body 113 rotates, driving multiple brackets 118 to rotate. The multiple brackets 118 contact the surface to be cleaned in sequence. By rubbing and patting the surface to be cleaned, the attached dust and hair fibers are picked up. When hair fibers are wrapped around the roller brush assembly 100, the bracket 118 can be removed from the roller body 113 for cleaning, which is more convenient.

[0166] The bracket 118 provided in this embodiment of the application has a ventilation hole 111, which penetrates the bracket 118 in a first direction; the ventilation hole 111 is configured to form an airflow channel for airflow to pass through the roller brush assembly 100; wherein, the first direction has an angle with the axial direction of the roller 110.

[0167] It is understandable that a fan can be installed on the cleaning device 10 to generate negative pressure airflow. The negative pressure airflow is used in conjunction with the roller brush assembly 100 to use negative pressure suction to suck dust and hair fibers from the surface to be cleaned into the cleaning device 10. By setting ventilation holes 111 on the bracket 118, the airflow path of the whole machine can be improved, and hair fibers can be prevented from getting tangled in the roller brush assembly 100.

[0168] It should be noted that the ventilation hole 111 penetrates the bracket 118 in the first direction and has an angle with the axis of the roller 110, so that the ventilation hole 111 can connect the inside of the cleaning device 10 and the external environment. The first direction has a non-zero angle with the axis of the roller 110. The negative pressure airflow generated on the cleaning device 10 can flow through the periphery of the roller brush assembly 100 on the one hand, and through the air path formed by the ventilation hole 111 on the other hand. This allows the periphery of the roller brush assembly 100 and the ventilation hole 111 of the bracket 118 to form air paths for airflow, improving the air volume and airflow efficiency, thereby preventing hair fibers from remaining on the surface to be cleaned.

[0169] For example, the first direction has an angle with the axial direction of the roller 110. The angle value includes, but is not limited to, 1°, 2°, 10°, 20°, 30°, 45°, 60°, 89°, 90°, etc. The embodiments of this application do not specifically limit this.

[0170] Understandably, when the roller brush assembly 100 rotates to clean the surface to be cleaned, the negative pressure airflow generated by the cleaning device 10 can flow through the ventilation hole 111. The bracket 118 on the side of the roller 113 can still provide a good cleaning effect of friction and tapping on the surface to be cleaned. At the same time, the direction of the suction force generated by the air inlet causes some airflow to bypass the outside of the roller brush assembly 100, but some airflow can pass directly through the ventilation hole 111, reducing wind resistance and improving the overall airflow path of the cleaning device 10. This prevents hair fibers from getting tangled on the roller brush assembly 100, making it easier for hair fibers to be sucked into the cleaning device 10 and improving the cleaning effect.

[0171] In one possible implementation, the support 118 is arranged along the axial direction of the roller 110; there are multiple ventilation holes 111, which are spaced apart along the extension direction of the support 118.

[0172] It is understood that the bracket 118, arranged along the axial direction of the roller 110, can cover the cleaning area and avoid any missed spots; the multiple ventilation holes 111, arranged at intervals along the extension direction of the bracket 118, can increase the ventilation area in the length direction of the roller brush assembly 100 and improve airflow efficiency. The shape of the ventilation holes 111 can be square, rectangular, round, elliptical, or other shapes. This application embodiment does not specifically limit this. The number of ventilation holes 111 is set according to their shape to achieve a certain gas flow rate. Each ventilation hole 111 can be understood as forming an air path. Multiple airflow paths can disperse the airflow passing through the roller brush assembly 100, reducing wind resistance and noise generated when the roller brush assembly 100 rotates for cleaning.

[0173] For example, the number of ventilation holes 111 can be 2, 3, 4, 5, etc., and the multiple ventilation holes 111 can be arranged at equal intervals or at unequal intervals. This application embodiment does not specifically limit this.

[0174] In one possible implementation, the surface of the roller 113 is provided with a connecting structure, and the support 118 abuts against the connecting structure; the connecting structure is configured to limit the support 118 radially along the roller 110.

[0175] It should be noted that the roller 113 is connected to the bracket 118 through the surface connection structure. The connection structure can be of various forms, which can make it easier to disassemble or install the bracket 118. The connection structure can limit the bracket 118 in the radial direction of the roller 110, so that the bracket 118 will not be displaced in the radial direction of the roller 110 after installation, thus affecting the cleaning effect. The bracket 118 is limited in the axial direction of the roller 110 after installation through the connection ends 114 at both ends of the roller 113.

[0176] In one possible implementation, the connection structure includes multiple snap fasteners 1101, all of which extend vertically on the surface of the roller 113; the multiple snap fasteners 1101 are respectively disposed on both sides of the bracket 118 and engage with the bracket 118.

[0177] It is understood that the connection structure on the surface of the rolling body 113 consists of multiple snap fasteners 1101. Each bracket 118 has multiple snap-fit ​​points along its length. Each snap-fit ​​point has two snap fasteners 1101 on both sides to snap the bracket 118. The snap fasteners 1101 and the axial direction of the rolling body 113 have a certain angle. The size of the angle can be determined according to the actual snap-fit ​​effect. The length of the snap fasteners 1101 is greater than or equal to 1% of the axial length of the rolling body 113 and less than or equal to 90% of the axial length of the rolling body 113. By snapping the bracket 118 with multiple sets of snap fasteners 1101, the bracket 118 can be fixed to the surface of the rolling body 113.

[0178] For example, the number of buckles 1101 can be 1, 2, 3, etc., and multiple buckles 1101 can be arranged at equal intervals or at unequal intervals. This application embodiment does not specifically limit this.

[0179] For example, the ratio of the length of the buckle 1101 to the axial length of the roller 113 can be 1%, 5%, 10%, 50%, 90%, etc., and this application embodiment does not specifically limit it.

[0180] In one possible implementation, the buckle 1101 is disposed opposite to the ventilation hole 111; the buckle 1101 has a protrusion 1111 facing the bracket 118, the protrusion 1111 being engaged in the ventilation hole 111.

[0181] Understandably, the buckle 1101 extends vertically along the surface of the roller 113 to the height of the vent, and is embedded in the corresponding vent through the protrusion 1111 to fix the bracket 118. During fixation, the buckles 1101 are engaged by a pair of buckles 1101, with the protrusions 1111 of the pair of buckles 1101 facing each other and both embedded in the vent hole 111, forming a double fixation.

[0182] In one possible implementation, the upper edge of the protrusion 1111 has a first guide slope 1111a, and the lower edge of the bracket 118 has a second guide slope 1181.

[0183] During the engagement of the bracket 118 and the buckle 1101, the first guide slope 1111a abuts against the second guide slope 1181, and the bracket 118 presses the buckle 1101 to deform elastically so that the protrusion 1111 is inserted into the ventilation hole 111.

[0184] It should be noted that each ventilation hole 111 of the bracket 118 requires at least one pair of snap fasteners 1101 for engagement. The paired snap fasteners 1101 form an annular buckle with a certain gap in the middle. The first guide slope 1111a and the second guide slope 1181 have the same inclination angle. The inclination angle can be selected according to the actual engagement effect, and this embodiment does not impose a specific limitation. The bottom of the bracket 118 may be provided with an arc-shaped engagement part protruding from the main body of the bracket 118. When engaged, the first guide slope 1111a and the second guide slope 1181 When the bracket 118 is docked, it is pressed downwards, causing the two buckles 1101 to undergo elastic deformation. The two protrusions 1111 move away from each other. When the buckles 1101 are at their maximum deformation, the distance between the two protrusions 1111 is equal to the length of the arc-shaped locking part at the bottom of the bracket 118. The arc-shaped locking part can be engaged with the ring buckle through the gap between the two protrusions 1111. The two protrusions 1111 are embedded in the ventilation opening, completing the locking. By locking multiple ventilation holes 111 with multiple sets of buckles 1101, the bracket 118 can be fixed on the surface of the roller 113.

[0185] It is understandable that a gap may be left between the arc-shaped locking part at the bottom of the bracket 118 and the main body of the bracket 118. The width of the gap may be the same as the thickness of the protrusion 1111, so that the protrusion 1111 can be locked between the arc-shaped locking part and the main body of the bracket 118, preventing the bracket 118 from swaying radially on the roller 113. With this arrangement, a gap may be left between the surface of the bracket 118 and the roller 113 to allow airflow.

[0186] Optionally, some ventilation holes 111 of the bracket 118 may not be equipped with clips 1101 for snap-fit, so as to increase the cross-sectional area of ​​the ventilation holes 111. Some ventilation holes 111 may be equipped with one set of clips 1101 or multiple sets of clips 1101 for snap-fit.

[0187] Referring to Figures 24 to 29, this application provides a second embodiment in which the bracket 118 is fixed in a different manner.

[0188] In the second embodiment, the buckle 1101 has a protrusion 1111 facing the bracket 118, and the bracket 118 has protrusions 1182 on both sides; the protrusion 1111 is engaged with the upper edge of the protrusion 1182.

[0189] It is understandable that there is a gap between the protrusions 1111. The width of the gap between the protrusions 1111 is greater than the width of the bracket 118 and less than the distance between the two ends of the boss 1182, so that the protrusions 1111 can be locked on the upper edge of the boss 1182 to limit the cleaning assembly radially along the roller 113.

[0190] Optionally, multiple snap fasteners 1101 can be provided along the length of the roller 113. The number of snap fasteners 1101 corresponds to the number of bosses 1182. The multiple snap fasteners 1101 are arranged in parallel. When the bracket 118 is engaged, the bosses 1182 can be inserted into the snap fasteners 1101 from the side, so that the protrusions 1111 are engaged on the upper edge of the bosses 1182.

[0191] In this embodiment, the roller 113 includes a cylindrical portion 116 and two coaxially arranged connecting ends 114, which are respectively connected to the two ends of the cylindrical portion 116 in the axial direction. The diameter of the connecting end 114 is greater than or equal to the diameter of the cylindrical portion 116. The outer edge of the connecting end 114 is provided with a limiting groove 1141, and the two ends of the bracket 118 are respectively placed in the limiting grooves 1141 of the connecting ends 114 at both ends of the roller 113.

[0192] It is understood that the bracket 118 is secured by snap-fit ​​1101 during installation, thereby fixing it radially along the roller 113. Then, connecting ends 114 are installed at both ends of the roller 113, and the bracket 118 is snapped into the limiting groove 1141 of the connecting end 114, thus fixing the bracket 118 axially along the roller 113. The diameter of the connecting end 114 is greater than or equal to the diameter of the cylindrical part 116, which can play the role of axial positioning and enhancing structural strength. The connecting end 114 and the cylindrical part 116 can be connected by thread, snap-fit, etc., which are not specifically limited in this embodiment.

[0193] It should be noted that in the above two embodiments, the lower edge of the bracket 118 and the surface of the cylindrical portion 116 have an airflow gap 140 to form an airflow channel for airflow to pass through the roller brush assembly 100. The height of the airflow gap 140 is greater than or equal to 1% of the diameter of the roller 113 and less than or equal to 100% of the diameter of the roller 113. The lower edge of the bracket 118 is also provided with a baffle structure 112, which connects the lower edge of the bracket 118 and the cylindrical portion 116. Through the baffle structure 112, the buckle 1101 and the connecting end 114, the bracket 118 completes the connection with the roller 113.

[0194] For example, the ratio of the height of the airflow gap 140 between the lower edge of the bracket 118 and the surface of the cylindrical portion 116 to the diameter of the roller 113 can be 1%, 5%, 10%, 50%, 100%, etc., and this application embodiment does not make specific limitations.

[0195] Referring to Figures 30 to 35, this application provides Embodiment 3, in which the bracket 118 is fixed in a different manner.

[0196] In this embodiment, the connecting structure includes a slot 117, which extends axially from one end of the roller 113 to the other end. The width of the slot 117 located on the side wall of the roller 113 is smaller than the width of the slot 117 inside the slot. The lower edge of the bracket 118 is provided with a plug-in part, the shape of which corresponds to the slot 117. During installation, the plug-in part is inserted into the slot 117 at one end of the roller 113 to fix the bracket 118 radially along the roller 113.

[0197] In one possible implementation, the roller brush assembly 100 also includes a flexible cleaning element 120, which is connected to the bracket 118.

[0198] It is understood that the bracket 118 is used to connect the flexible cleaning component 120 and the roller 113. The bracket 118 and the roller 113 can be connected and fixed by the buckle 1101 and the slot 117 in the above three embodiments. The flexible cleaning component 120 and the bracket 118 can be connected and fixed by the buckle 1101 and the keyway connection structure. The flexible cleaning component 120 is used to contact the surface to be cleaned. The rotation of the roller 113 can drive the flexible cleaning component 120 to wipe and pat the surface to be cleaned, so as to pick up dust and hair fibers.

[0199] When the flexible cleaning component 120 is compressed, it undergoes elastic deformation, which can loosen the rolled-up fibers and prevent the hair from getting tangled on the roller brush assembly 100.

[0200] In some embodiments, the roller 113 may be used directly as the roller brush assembly 100 to clean the surface to be cleaned without the need to connect the bracket 118 and the flexible cleaning component 120. For example, the roller 113 may be wrapped with a cloth or bristles to clean the surface to be cleaned.

[0201] In some embodiments, the bracket 118 is arranged along the axial direction of the roller 113, which can ensure that the flexible cleaning element 120 cleans along the entire length of the roller 113 and avoids cleaning blind spots.

[0202] Optionally, the top side of the bracket 118 has a insertion groove 119 extending along its length, and the flexible cleaning component 120 is inserted through the insertion groove 119, or the flexible cleaning component 120 and the bracket 118 can be integrally formed.

[0203] In some embodiments, there are multiple supports 118, which are arranged circumferentially at intervals on the roller 113.

[0204] It should be noted that multiple supports 118 are evenly distributed around the circumference of the roller 113, and the ventilation holes 111 of two adjacent supports 118 can be set correspondingly or staggered.

[0205] In some embodiments, the roller brush assembly 100 further includes two end caps 130, which are respectively connected to the two ends of the roller 113 in the axial direction; the two ends of the bracket 118 abut against the two end caps 130 respectively.

[0206] It should be noted that the two end caps 130 are disposed on the two connecting ends 114. The end caps 130 and the connecting ends 114 can be connected by threads, snap-fit ​​fasteners, etc., and this embodiment of the application does not make specific limitations. The end caps 130 may be provided with slots 131 to snap-fit ​​the flexible cleaning part.

[0207] This application provides a roller brush assembly and a cleaning device. 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 element. The flexible cleaning element is disposed on the surface of the roller, and the roller has ventilation holes. When the roller brush assembly rotates, the ventilation holes form an airflow 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, increasing the airflow rate into the cleaning device, changing the direction of the suction force generated by the air inlet on the cleaning device, improving the overall airflow path of the cleaning device, weakening the impact of inward suction on hair fibers, and preventing hair fibers from getting tangled on the roller brush assembly.

[0208] 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 roller, characterized in that, For use in cleaning equipment (10), and the roller (110) is rotatably disposed on the cleaning equipment (10); The roller (110) is provided with ventilation holes (111); when the roller (110) rotates, the ventilation holes (111) form an air passage for airflow, and the airflow direction of the air passage has an angle with the axial direction of the roller (110).

2. The roller according to claim 1, characterized in that, The ventilation hole (111) extends through the roller (110) in the circumferential direction of rotation.

3. The roller according to claim 1, characterized in that, Along the radial direction of the roller (110), the center of the ventilation hole (111) is spaced from the axis of rotation of the roller (110).

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

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

6. The roller according to claim 1, characterized in that, There are multiple ventilation holes (111), and the multiple ventilation holes (111) are spaced apart along the axial direction of the roller (110).

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

8. The roller according to any one of claims 1-7, 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 according to any one of claims 1-7, characterized in that, The roller (110) includes a roller body (113), and the ventilation hole (111) is opened on the roller body (113) and penetrates the outer surface of the roller body (113).

10. The roller according to any one of claims 1-7, characterized in that, The roller (110) includes two connecting ends (114) and multiple support parts (115). Both ends of the multiple support parts (115) are respectively connected to the two connecting ends (114) and are spaced apart around the connecting ends (114) to form the ventilation hole (111).

11. The roller according to any one of claims 1-7, characterized in that, The roller (110) includes a roller body (113), two connecting ends (114) and at least one support part (115). The two connecting ends (114) are respectively connected to the two ends of the roller body (113) in the axial direction, and the two ends of the support part (115) are respectively connected to the connecting ends (114) at both ends of the roller body (113). The ventilation hole (111) includes a first ventilation hole (111a), and there is a gap between the support (115) and the roller (113) to form the first ventilation hole (111a).

12. A roller brush assembly (100) comprising a flexible cleaning element (120) and a roller (110) as claimed in any one of claims 1-10; the flexible cleaning element (120) being connected to the roller (110).

13. The roller brush assembly according to claim 12, characterized in that, The roller (110) includes a roller body (113), two connecting ends (114) and at least one support part (115). The two connecting ends (114) are respectively connected to the two ends of the roller body (113) in the axial direction, and the two ends of the support part (115) are respectively connected to the connecting ends (114) at both ends of the roller body (113). The ventilation hole (111) includes a first ventilation hole (111a), and there is a gap between the support (115) and the roller (113) to form the first ventilation hole (111a).

14. The roller brush assembly according to claim 13, 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 element (120) is inserted into the through groove (1151); at least a portion of the structure of the flexible cleaning element (120) protrudes radially from the through groove (1151) along the outside of the roller (110).

15. The roller brush assembly according to claim 14, characterized in that, The edge of the flexible cleaning element (120) away from the roller (110) is parallel to or at an angle to the inner wall of the through groove (1151) away from the central axis of the roller (110).

16. The roller brush assembly according to claim 14, characterized in that, The flexible cleaning component (120) has a connecting portion (121) 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 roller (110) is parallel to or at an angle to the inner wall of the through groove (1151) near the central axis of the roller (110).

17. The roller brush assembly according to claim 16, characterized in that, There are multiple connecting parts (121), and the multiple connecting parts (121) are spaced apart along the length direction of the through groove (1151); The ventilation hole (111) includes a second ventilation hole (111b), which is disposed on the support (115), and the gap between the second ventilation hole (111b) and the adjacent connecting part (121) is opposite.

18. The roller brush assembly according to claim 17, characterized in that, The first ventilation hole (111a) and the second ventilation hole (111b) are offset along the axial direction of the roller (110); or, the first ventilation hole (111a) and the second ventilation hole (111b) are arranged in a one-to-one correspondence along the axial direction of the roller (110).

19. The roller brush assembly according to claim 12, characterized in that, The edge of the flexible cleaning element (120) away from the central axis of the roller (110) has an angle with the central axis of the roller (110); or, the flexible cleaning element (120) is disposed on the surface of the roller (110) and protrudes relative to the surface of the roller (110).

20. The roller brush assembly according to claim 12, characterized in that, The roller brush assembly (100) further includes an end cap (130) connected to the axial end of the roller (110). The end cap (130) has a slot (131) on the side facing the flexible cleaning element (120), and the end of the flexible cleaning element (120) is inserted into the slot (131). The 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).

21. A roller brush assembly, characterized in that, For use in cleaning equipment (10), and the roller brush assembly (100) is rotatably disposed on the cleaning equipment (10); the roller brush assembly (100) includes a roller (110), the roller (110) including a roller body (113) and at least one bracket (118); the bracket (118) is detachably connected to the side of the roller body (113); The bracket (118) is provided with a ventilation hole (111) that extends through the bracket (118) in a first direction; the ventilation hole (111) is configured to form an airflow channel for airflow to pass through the roller brush assembly (100); wherein the first direction is at an angle to the axial direction of the roller (110).

22. The roller brush assembly according to claim 21, wherein the bracket (118) is arranged along the axial direction of the roller (110); there are multiple ventilation holes (111), and the multiple ventilation holes (111) are arranged at intervals along the extending direction of the bracket (118).

23. The roller brush assembly according to claim 21, wherein the surface of the roller (113) is provided with a connecting structure, and the bracket (118) abuts against the connecting structure; the connecting structure is configured to limit the bracket (118) radially along the roller.

24. The roller brush assembly according to claim 23, wherein the connection structure includes a plurality of snap fasteners (1101), all of which extend vertically on the surface of the roller (113); the plurality of snap fasteners (1101) are respectively disposed on both sides of the bracket (118) and engage with the bracket (118).

25. The roller brush assembly according to claim 24, wherein the buckle (1101) is disposed opposite to the ventilation hole (111); the buckle (1101) has a protrusion (1111) facing the bracket (118), the protrusion (1111) being engaged in the ventilation hole (111).

26. The roller brush assembly according to claim 25, wherein the upper edge of the protrusion (1111) has a first guide slope (1111a) and the lower edge of the bracket (118) has a second guide slope (1181); in, During the engagement of the bracket (118) and the buckle (1101), the first guide slope (1111a) abuts against the second guide slope (1181), and the bracket (118) presses the buckle (1101) to deform elastically so that the protrusion (1111) is inserted into the ventilation hole (111).

27. The roller brush assembly according to claim 24, wherein the buckle (1101) has a protrusion (1111) facing the bracket (118), and the bracket (118) is provided with bosses (1182) on both sides; the protrusion (1111) is engaged with the upper edge of the bosses (1182).

28. The roller brush assembly according to claim 24, wherein the roller (113) comprises a cylindrical portion (116) and two coaxially arranged connecting ends (114), the two connecting ends (114) being respectively connected to both ends of the cylindrical portion (116) in the axial direction; the diameter of the connecting end (114) is greater than or equal to the diameter of the cylindrical portion (116); the outer edge of the connecting end (114) is provided with a limiting groove (1141), and both ends of the bracket (118) are respectively placed in the limiting grooves (1141) of the connecting ends (114) at both ends of the roller (113); The lower edge of the bracket (118) has a gap with the surface of the cylindrical portion (116) to form an airflow channel for airflow to pass through the roller brush assembly (100).

29. The roller brush assembly according to claim 23, wherein the connecting structure includes a slot (117) extending axially from one end of the roller (113) to the other end; the slot (117) has an opening width on the side wall of the roller (113) that is smaller than the groove width of the slot (117); and the bracket (118) is inserted into the slot (117).

30. The roller brush assembly according to claim 23, wherein the roller brush assembly (100) further comprises a flexible cleaning element (120) connected to the bracket (118).

31. The roller brush assembly according to claim 30, wherein the top side of the bracket (118) has an insertion groove (119) extending along its length direction, and the flexible cleaning member (120) is inserted into the insertion groove (119); or, the flexible cleaning member (120) and the bracket (118) are integrally formed.

32. The roller brush assembly according to claim 23, wherein there are multiple brackets (118), and the multiple brackets (118) are arranged circumferentially at intervals in the roller (113).

33. A cleaning device, characterized in that, The cleaning device includes a device body (200) and a roller brush assembly (100) as described in any one of claims 12-32, the roller brush assembly (100) being rotatably disposed on the device body (200).

34. The cleaning equipment according to claim 33, characterized in that, The main body of the device is provided with a roller brush cavity (201), the roller brush cavity (201) has an opening facing one side of the main body of the device, the roller brush assembly is located in the roller brush cavity (201) and protrudes from the opening to contact the surface to be cleaned; The contour shape of the wall of the roller brush cavity (201) matches the contour shape of the roller brush assembly; 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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