Rolling brush assembly and collection device
By incorporating a shielding element into the roller brush assembly to block the gap between the roller brush and the mounting bracket, the problem of the roller brush easily getting tangled is solved, thus improving its service life and equipment reliability.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN MAMMOTION INNOVATION CO LTD
- Filing Date
- 2025-12-11
- Publication Date
- 2026-07-23
AI Technical Summary
The connection between the roller brush and the mounting bracket is easily entangled by the material to be collected, causing the roller brush to get stuck and unable to rotate, which may wear down the mounting bracket or parts on the roller brush.
A shield is installed between the roller brush and the mounting bracket. The shield is positioned around the rotating part to block the gap between the roller brush and the mounting bracket, thus preventing the material to be collected from getting tangled.
This effectively prevents the material to be collected from getting tangled at the connection between the roller brush and the mounting bracket, thus improving the service life of the roller brush assembly and the operational reliability of the collection equipment.
Smart Images
Figure CN2025141825_23072026_PF_FP_ABST
Abstract
Description
Roller brush assembly and collection device Technical Field
[0001] This application relates to the field of roller brush technology, and more particularly to a roller brush assembly and collection device. Background Technology
[0002] The collection device has a collection box at the rear, and a roller brush assembly is located at the front of the inlet of the collection box. The roller brush assembly rotates to sweep the objects to be collected on the ground into the collection box. Currently, the roller brush of the roller brush assembly is rotatably connected to the mounting bracket. When the roller brush rotates, the connection between the roller brush and the mounting bracket is easily entangled by the objects to be collected. If too much object is entangled, it will cause the roller brush to jam and be unable to rotate, and may also wear down the parts on the mounting bracket or the roller brush. Summary of the Invention
[0003] This application provides a roller brush assembly and a collection device to solve the problem that the connection between the roller brush and the mounting bracket is easily entangled by the object to be collected.
[0004] In a first aspect, this application provides a roller brush assembly, the roller brush assembly including a mounting bracket, a rotating member, a roller brush, and a blocking member. The rotating member is rotatably mounted on the mounting bracket. The roller brush is mounted on the rotating member. The blocking member is located between the mounting bracket and the roller brush, the blocking member is disposed around the rotating member, and the blocking member is used to block the gap between the roller brush and the mounting bracket.
[0005] In some embodiments, along the rotation axis of the rotating member, the radial dimension of the blocking member at the position between the opposite ends is smaller than the radial dimension of the blocking member at the end near the mounting bracket.
[0006] In some embodiments, along the rotation axis of the rotating member, the radial dimension of the blocking member decreases from opposite ends toward the center of the blocking member.
[0007] In some embodiments, the roller brush is provided with a clearance groove, the clearance groove is spaced apart from the rotating member, and the end of the blocking member away from the mounting bracket is located in the clearance groove.
[0008] In some embodiments, the roller brush includes a sleeve and a brush body. The sleeve is sleeved on the rotating member and fixed relative to the rotating member. The brush body is disposed on the side wall of the sleeve opposite to the rotating member, and the clearance groove is disposed on the brush body.
[0009] In some embodiments, the brush body includes a base, a first brush portion, and a second brush portion. The base is connected to the sleeve. The first brush portion and the second brush portion are both connected to the side of the base away from the sleeve. The first brush portion and the second brush portion extend in a direction away from the base, and the extension directions of the first brush portion and the second brush portion are different. The clearance groove is provided on the base.
[0010] In some embodiments, the shielding member includes a first end, a middle portion, and a second end, the middle portion being connected between the first end and the second end, the first end being connected to the mounting bracket, the second end being located within the clearance groove, and the radial dimension of the middle portion being smaller than the radial dimension of the second end.
[0011] In some embodiments, the radial dimension of the shielding member decreases from the second end toward the middle portion, and the middle portion and the second end have a smooth transition.
[0012] In some embodiments, the roller brush assembly further includes a bearing, the shielding member forms a receiving space, the bearing is located within the receiving space, the shielding member is connected to the outer ring of the bearing, and the rotating member passes through the receiving space and is connected to the inner ring of the bearing.
[0013] In some embodiments, the bearing is disposed near the center of the shielding member along the direction of the rotation axis of the rotating member.
[0014] In some embodiments, the rotating member includes a body and a connecting member, the connecting member being fixedly connected to the axial end of the body and fixedly connected to the inner ring of the bearing, and the roller brush being disposed on the body.
[0015] In some embodiments, the mounting bracket includes two mounting plates arranged opposite to each other, and two shielding members are provided. The two shielding members are respectively connected to the corresponding mounting plates. The end of the shielding member away from the mounting plate is provided with a mounting opening, and the rotating member passes through the mounting opening.
[0016] Secondly, this application provides a collection device, which includes a roller brush assembly as described in any of the above claims, wherein the mounting bracket of the roller brush assembly is connected to the body of the collection device; or, the collection device further includes a collection structure, which is connected to the body of the collection device, and the roller brush assembly is mounted on the collection structure.
[0017] The roller brush assembly and collection device provided in this application utilize a shielding member disposed between the mounting bracket and the roller brush. The shielding member surrounds the rotating component and is used to shield the gap between the roller brush and the mounting bracket. The shielding member can shield the object to be collected, preventing the object to be collected from concentrating in the gap between the roller brush and the mounting bracket, and from getting tangled in the gap between the roller brush and the mounting bracket. This also prevents the roller brush from getting stuck in the gap, improves the service life of the roller brush assembly, and enhances the operational reliability of the collection device. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 is a schematic diagram of the structure of the roller brush assembly provided in the embodiment of this application from one perspective.
[0020] Figure 2 is an exploded view of the roller brush assembly provided in an embodiment of this application.
[0021] Figure 3 is a cross-sectional view of the roller brush assembly provided in an embodiment of this application.
[0022] Figure 4 is a schematic diagram of the structure of the shielding member provided in the embodiment of this application.
[0023] Figure 5 is a schematic diagram of the structure of the roller brush provided in an embodiment of this application.
[0024] Figure 6 is a structural schematic diagram of the roller brush assembly provided in an embodiment of this application from another perspective.
[0025] Figure 7 is an enlarged view of point I in Figure 6.
[0026] Key reference numerals in the drawings: 100; 11; 111; 1111; 12; 121; 122; 1221; 1222; 1221; 1222; 13; 131; 1311; 132; 1320; 1321; 1322; 1323; 14; 140; 1401; 141; 142; 143; 144; 145; 15; 161; 162.
[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation
[0028] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0029] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0030] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is only for describing specific embodiments and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in the specification and appended claims refers to any combination of one or more of the associated listed items, and all possible combinations, including such combinations.
[0031] Please refer to Figures 1, 2, 3, and 4 together. Figure 1 is a structural schematic diagram of the roller brush assembly 100 provided in an embodiment of this application from one perspective. Figure 2 is an exploded view of the roller brush assembly 100 provided in an embodiment of this application. Figure 3 is a cross-sectional view of the roller brush assembly 100 provided in an embodiment of this application. Figure 4 is a structural schematic diagram of the shielding member 14 provided in an embodiment of this application. This application provides a collection device, which includes a body and a roller brush assembly 100. The mounting bracket 11 of the roller brush assembly 100 is connected to the body of the collection device. The roller brush assembly 100 is used to collect objects on the ground to keep the ground clean. In some embodiments, the collection device further includes a collection structure connected to the body of the collection device, and the roller brush assembly 100 is mounted on the collection structure. The collection structure includes a collection box. The roller brush assembly 100 is used to sweep the objects to be collected into the collection box. Exemplarily, this application describes the collection device as a lawn mowing device, which also includes a cutting structure mounted on the body for cutting and trimming the lawn. The roller brush assembly 100 is used to sweep grass clippings, fallen leaves, and other debris from the ground into a collection bin. In some embodiments, the collection device may also be configured as other devices, such as, but not limited to, road sweeping devices or household / industrial sweeping devices.
[0032] The roller brush assembly 100 includes a mounting bracket 11, a rotating member 12, a roller brush 13, and a blocking member 14. The rotating member 12 is rotatably mounted on the mounting bracket 11. The roller brush 13 is mounted on the rotating member 12. The rotating member 12 drives the roller brush 13 to rotate, causing the roller brush 13 to sweep the material to be collected. The blocking member 14 is located between the mounting bracket 11 and the roller brush 13. The blocking member 14 is arranged around the rotating member 12. The blocking member 14 blocks the gap between the roller brush 13 and the mounting bracket 11. In this way, the blocking member 14 can block the material to be collected, preventing the material from concentrating in the gap between the roller brush 13 and the mounting bracket 11, and from getting tangled in the gap at the connection between the roller brush 13 and the mounting bracket 11. This also prevents the roller brush 13 from being stuck and unable to rotate, improving the service life of the roller brush assembly 100 and enhancing the operational reliability of the collection equipment. In addition, the radius of the blocking member 14 is larger than the radius of the rotating member 12. The blocking member 14 can increase the entanglement radius of the object to be collected, making it more difficult for the object to be collected to become entangled on the blocking member 14, thereby effectively preventing the object to be collected from becoming entangled on the blocking member 14.
[0033] The rotating component 12 is elongated. The blocking component 14 is hollow cylindrical. The rotating component 12 passes through the blocking component 14. The blocking component 14 is independently positioned relative to the mounting bracket 11 and the rotating component 12. The rotating component 12 includes a body component 121 and a connecting component 122. The connecting component 122 is fixedly connected to the axial end of the body component 121. The connecting component 122 passes through the blocking component 14 and is used for rotatable connection with the mounting bracket 11. Two connecting components 122 are provided, correspondingly positioned at the two ends of the body component 121. The connecting component 122 and the body component 121 can be configured for detachable connection, which facilitates individual maintenance or replacement of the body component 121 or the connecting component 122, reducing the maintenance cost of the rotating component 12. A roller brush 13 is disposed on the body component 121.
[0034] In some embodiments, the end of the roller brush 13 is provided with a fixing groove 1311. A fixing protrusion 1222 is provided on the connector 122. The fixing protrusion 1222 is located within the fixing groove 1311. The shape of the fixing protrusion 1222 matches the shape of the fixing groove 1311, so that the fixing protrusion 1222 and the fixing groove 1311 engage, thereby improving the connection stability between the roller brush 13 and the body component 121 and preventing relative rotation between the roller brush 13 and the body component 121.
[0035] Along the rotation axis of the rotating member 12, the radial dimension of the blocking member 14 located between its two ends is smaller than the radial dimension of the end of the blocking member 14 near the mounting bracket 11. The end of the blocking member 14 near the mounting bracket 11 is approximately flared. Thus, when the object to be collected falls onto the blocking member 14, it will move away from the mounting bracket 11 under the guidance of the outer wall of the blocking member 14, reducing the chance of contact between the object and the mounting bracket 11 and preventing the object from getting stuck at the connection between the blocking member 14 and the mounting bracket 11. The radial dimension is the dimension in the direction perpendicular to the rotation axis of the rotating member 12, and the radial dimension of the blocking member 14 can be the diameter of its circumscribed circle.
[0036] In some embodiments, along the rotation axis of the rotating member 12, the radial dimension of the blocking member 14 decreases from its opposite ends toward its center. The blocking member 14 has a structure that is larger at both ends and smaller in the middle. Thus, when the object to be collected falls onto the blocking member 14, it will move from its two ends toward the center of the blocking member 14 under the guidance of the outer wall of the blocking member 14, so that the object to be collected moves away from the mounting bracket 11 and the roller brush 13, preventing the object to be collected from getting stuck or tangled between the mounting bracket 11 and the blocking member 14, or between the roller brush 13 and the blocking member 14.
[0037] The cross-sectional shape of the shielding member 14 can be configured as circular so that the external force acting on the shielding member 14 can be transmitted to all parts of the shielding member 14, which helps to prevent the shielding member 14 from deforming, thereby improving the working reliability of the roller brush assembly 100. The cross-section is a plane perpendicular to the rotation axis of the rotating member 12. In some embodiments, the cross-section of the shielding member 14 can also be other shapes, for example, the shape of the cross-section of the shielding member 14 includes, but is not limited to, triangles, squares, ellipses, regular or irregular polygons, etc.
[0038] The shielding member 14 includes a first end 141, a second end 142, and a middle portion 143. The middle portion 143 connects the first end 141 and the second end 142. The middle portion 143 corresponds to the shielding member 14 in the position between its two ends. The first end 141 is connected to the mounting bracket 11. The radial dimension of the middle portion 143 is smaller than the radial dimension of the first end 141 and the radial dimension of the second end 142. Thus, when the object to be collected falls onto the shielding member 14, it will move towards the middle portion 143 due to the guiding effect of the shielding member 14.
[0039] In some embodiments, the radial dimension of the shielding member 14 may gradually decrease from the first end 141 and the second end 142 toward the middle portion 143, for example, it may decrease linearly or non-linearly. In some embodiments, the radial dimension of the shielding member 14 may remain constant initially and then gradually decrease along the direction from the first end 141 toward the middle portion 143. In some embodiments, the radial dimension of the shielding member 14 may remain constant initially and then gradually decrease along the direction from the second end 142 toward the middle portion 143.
[0040] The shielding member 14 is mounted on the mounting bracket 11. The shielding member 14 and the mounting bracket 11 can be detachably connected to facilitate maintenance or replacement of the shielding member 14. The shielding member 14 is provided with a snap-fit portion 145. The snap-fit portion 145 is located at the end of the shielding member 14 closest to the mounting bracket 11. The snap-fit portion 145 is connected to a first end portion 141 and extends away from the rotating member 12 relative to the first end portion 141. The mounting bracket 11 is provided with a snap-fit groove 1111. The snap-fit portion 145 is snapped and fixed in the snap-fit groove 1111 to prevent the shielding member 14 from rotating relative to the mounting bracket 11, thus fixing the shielding member 14 relative to the mounting bracket 11. The first end portion 141 is fixed relative to the mounting bracket 11 by the snap-fit portion 145.
[0041] Please refer to Figures 2, 3, 4, 5, 6, and 7. Figure 5 is a structural schematic diagram of the roller brush 13 provided in this embodiment of the application. Figure 6 is a structural schematic diagram of the roller brush assembly 100 provided in this embodiment of the application from another perspective. Figure 7 is an enlarged view of point I in Figure 6. The roller brush 13 is provided with a clearance groove 1320. The clearance groove 1320 has an opening on the side near the blocking member 14. The end of the blocking member 14 away from the mounting bracket 11 is located in the clearance groove 1320, that is, the second end 142 is located in the clearance groove 1320. The extension length of the blocking member 14 is greater than the distance between the roller brush 13 and the mounting bracket 11, so that the blocking member 14 blocks the gap between the roller brush 13 and the mounting bracket 11, preventing the material to be collected from becoming entangled and hindering the rotation of the roller brush 13.
[0042] The radial dimension of the shield 14 decreases from the second end 142 toward the middle part 143. The middle part 143 and the second end 142 can be smoothly transitioned to reduce the resistance when the object to be collected slides along the peripheral side wall of the shield 14. This facilitates the object to be collected to slide from the position near the second end 142 to the position of the middle part 143, effectively preventing the object to be collected from entering the clearance groove 1320.
[0043] The clearance groove 1320 is spaced apart from the rotating member 12. The clearance groove 1320 does not penetrate the inner wall of the roller brush 13 on the side facing the rotating member 12. In this way, the roller brush 13 can extend to the position between the shield 14 and the rotating member 12, so that the roller brush 13 and the shield 14 are engaged. The groove wall of the clearance groove 1320 and the second end 142 form a C-shaped bending structure. Even if the object to be collected enters the clearance groove 1320, the object to be collected will be stuck between the side surface of the second end 142 away from the rotating member 12 and the groove side wall of the clearance groove 1320. This helps to prevent the object to be collected from entering the position between the end face of the second end 142 away from the mounting bracket 11 and the bottom wall of the clearance groove 1320, and prevents the object to be collected from exerting an external force on the roller brush 13 in the direction of the rotation axis of the rotating member 12. This also prevents the body part 121 and the connecting member 122 from failing to connect and separating, and prevents the object to be collected from entering the position between the shield 14 and the rotating member 12.
[0044] The roller brush 13 includes a sleeve 131 and a brush body 132. The sleeve 131 is fitted onto the rotating member 12 and fixed relative to the rotating member 12. A fixing groove 1311 is provided at the end of the sleeve 131. The cross-sectional shape of the sleeve 131 can be configured as square, triangular, circular, elliptical, regular or irregular polygon, etc. The cross-sectional shape of the body member 121 corresponds to the cross-sectional shape of the sleeve 131, so that the sleeve 131 can be securely fitted onto the body member 121, preventing the sleeve 131 from rotating relative to the body member 121, and facilitating the disassembly and installation of the sleeve 131.
[0045] The brush body 132 is disposed on the side wall of the sleeve 131 opposite to the rotating member 12. The brush body 132 extends away from the sleeve 131. A clearance groove 1320 is disposed on the brush body 132 to reduce the machining difficulty of the clearance groove 1320. The sleeve 131 extends between the blocking member 14 and the rotating member 12, so that the blocking member 14 can block the end of the sleeve 131, thereby preventing the material to be collected from getting tangled between the sleeve 131 and the rotating member 12.
[0046] In some embodiments, along the rotation axis of the rotating member 12, the end of the sleeve 131 may be flush with the end of the brush body 132, or the end of the sleeve 131 may protrude relative to the end of the brush body 132. In some embodiments, along the rotation axis of the rotating member 12, the end of the brush body 132 may protrude relative to the end of the sleeve 131, and the sleeve 131 and the blocking member 14 may be spaced apart along the rotation axis of the rotating member 12.
[0047] The brush body 132 includes a base 1321, a first brush portion 1322, and a second brush portion 1323. The base 1321 is connected to the sleeve 131 and extends relative to the sleeve 131 in a direction away from the rotating member 12. The first brush portion 1322 and the second brush portion 1323 are both connected to the side of the base 1321 away from the sleeve 131. The first brush portion 1322 and the second brush portion 1323 extend in a direction away from the base 1321, respectively. The extending directions of the first brush portion 1322 and the second brush portion 1323 are different. Along the rotation direction of the rotating member 12, the first brush portion 1322 and the second brush portion 1323 are alternately spaced. The first brush portion 1322 includes a plurality of bristles arranged at intervals along the rotation axis of the rotating member 12. The second brush portion 1323 includes a brush plate, or a plurality of brush plates arranged at intervals along the rotation axis of the rotating member 12. Along the rotation axis of the rotating member 12, the width of the brush plate is greater than the width of the bristles. The brush plate can effectively increase the entanglement radius of the object to be collected, making it more difficult for the object to be collected to become entangled on the roller brush 13, thereby effectively preventing the object to be collected from becoming entangled on the roller brush. The first brush part 1322 and the second brush part 1323 can be respectively arranged in a curved extension.
[0048] The clearance groove 1320 can be provided on the base 1321. In some embodiments, the thickness of the base 1321 is greater than the thickness of the first brush portion 1322 and the thickness of the second brush portion 1323, respectively. Thus, by providing the clearance groove 1320 on the thicker base 1321, the brush body 132 can still have sufficient structural strength after the clearance groove 1320 is provided, ensuring a stable connection between the brush body 132 and the sleeve 131. In some embodiments, the clearance groove 1320 can also be provided on the first brush portion 1322 and the second brush portion 1323.
[0049] The roller brush assembly 100 also includes a bearing 15. A shield 14 forms a receiving space 140. The bearing 15 is located within the receiving space 140. The shield 14 is connected to the outer ring of the bearing 15. The receiving space 140 has an opening on the side opposite to the mounting bracket 11, and a rotating member 12 passes through the receiving space 140 and is connected to the inner ring of the bearing 15.
[0050] The shielding member 14 has a first abutting portion 144 on its inner wall, which abuts against the outer ring of the bearing 15. The rotating member 12 has a second abutting portion 1221 on its outer wall, which abuts against the inner ring of the bearing 15. One of the first abutting portion 144 and the second abutting portion 1221 is located on the side of the bearing 15 away from the mounting bracket 11, and the other is located on the side of the bearing 15 closer to the mounting bracket 11. That is, the first abutting portion 144 and the second abutting portion 1221 are located on opposite sides of the bearing 15 in the axial direction, so that the bearing 15 is clamped between the first abutting portion 144 and the second abutting portion 1221, thus fixing the bearing 15 and preventing it from moving along the rotation axis of the rotating member 12. The connecting member 122 is located within the receiving space 140 and is fixedly connected to the inner ring of the bearing 15; the second abutting portion 1221 is disposed on the connecting member 122. The axial direction of bearing 15 is parallel to the rotation axis of rotating component 12.
[0051] In some embodiments, the first abutting portion 144 and the second abutting portion 1221 can be configured as abutting protrusions, with the sidewalls of the abutting protrusions abutting against the bearing 15. In some embodiments, the first abutting portion 144 and the second abutting portion 1221 can be configured as abutting grooves, with the bearing 15 located within the abutting grooves and the sidewalls of the abutting grooves abutting against the bearing 15. In some embodiments, one of the first abutting portion 144 and the second abutting portion 1221 is configured as an abutting protrusion, and the other is configured as an abutting groove.
[0052] In some embodiments, along the axial direction of the rotating member 12, the bearing 15 is disposed near the center of the shielding member 14, that is, the bearing 15 is disposed at the position corresponding to the middle portion 143 of the shielding member 14. In this way, the radial dimension of the bearing 15 can be reduced, making the structure of the roller brush assembly 100 more compact.
[0053] The mounting bracket 11 includes two mounting plates 111 arranged opposite to each other. The mounting plates 111 are used to connect to the body of the collecting device. Two blocking members 14 are provided. The two blocking members 14 are respectively connected to the corresponding mounting plates 111. The end of the blocking member 14 away from the mounting plate 111 is provided with a mounting port 1401. The rotating member 12 passes through the mounting port 1401.
[0054] In some embodiments, the roller brush assembly 100 further includes a connecting shaft 161. One of the connecting members 122 of the rotating member 12 is provided with a insertion hole. One end of the connecting shaft 161 is inserted and fixed in the insertion hole, and the other end is rotatably connected to the mounting plate 111 corresponding to the connecting member 122.
[0055] The roller brush assembly 100 also includes a connecting bearing 162. The outer ring of the connecting bearing 162 is fixed to the mounting plate 111, and the rotating member 12 is fixedly connected to the inner ring of the connecting bearing 162 to realize the rotatable connection between the rotating member 12 and the mounting bracket 11.
[0056] In some embodiments, the roller brush assembly 100 further includes a driver that is tractively connected to the rotating member 12 to drive the rotating member 12 to rotate.
[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0058] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A roller brush assembly, characterized in that, include: Mounting bracket; A rotating component, which is rotatably mounted on the mounting bracket; A roller brush, which is mounted on the rotating component; A shielding member is located between the mounting bracket and the roller brush. The shielding member is arranged around the rotating member and is used to shield the gap between the roller brush and the mounting bracket.
2. The roller brush assembly according to claim 1, characterized in that, Along the rotation axis of the rotating member, the radial dimension of the blocking member at the position between the two opposite ends is smaller than the radial dimension of the end of the blocking member near the mounting bracket.
3. The roller brush assembly according to claim 1, characterized in that, Along the rotation axis of the rotating member, the radial dimension of the blocking member decreases from the opposite ends of the blocking member toward the middle of the blocking member.
4. The roller brush assembly according to claim 1, characterized in that, The roller brush is provided with a clearance groove, which is spaced apart from the rotating member, and the end of the shielding member away from the mounting bracket is located in the clearance groove.
5. The roller brush assembly according to claim 4, characterized in that, The roller brush includes a sleeve and a brush body. The sleeve is sleeved on the rotating member and fixed relative to the rotating member. The brush body is disposed on the side wall of the sleeve opposite to the rotating member. The clearance groove is disposed on the brush body.
6. The roller brush assembly according to claim 5, characterized in that, The brush body includes a base, a first brush part, and a second brush part. The base is connected to the sleeve. The first brush part and the second brush part are both connected to the side of the base away from the sleeve. The first brush part and the second brush part extend in a direction away from the base, and the extension directions of the first brush part and the second brush part are different. The clearance groove is provided on the base.
7. The roller brush assembly according to claim 4, characterized in that, The shielding member includes a first end, a middle part, and a second end. The middle part is connected between the first end and the second end. The first end is connected to the mounting bracket. The second end is located in the clearance groove. The radial dimension of the middle part is smaller than the radial dimension of the second end.
8. The roller brush assembly according to claim 7, characterized in that, The radial dimension of the shielding member decreases from the second end toward the middle portion, and there is a smooth transition between the middle portion and the second end.
9. The roller brush assembly according to any one of claims 1-8, characterized in that, The roller brush assembly also includes a bearing, the shielding member forms a receiving space, the bearing is located in the receiving space, the shielding member is connected to the outer ring of the bearing, and the rotating member passes through the receiving space and is connected to the inner ring of the bearing.
10. The roller brush assembly according to claim 9, characterized in that, Along the rotation axis of the rotating member, the bearing is located near the center of the shielding member.
11. The roller brush assembly according to claim 9, characterized in that, The rotating component includes a body and a connecting component. The connecting component is fixedly connected to the axial end of the body and to the inner ring of the bearing. The roller brush is disposed on the body.
12. The roller brush assembly according to claim 1, characterized in that, The mounting bracket includes two mounting plates arranged opposite to each other. Two shielding members are provided, and the two shielding members are respectively connected to the corresponding mounting plates. The end of the shielding member away from the mounting plate is provided with a mounting opening, and the rotating member passes through the mounting opening.
13. A collection device, characterized in that, The collection device includes a roller brush assembly as described in any one of claims 1-12, wherein the mounting bracket of the roller brush assembly is connected to the body of the collection device; or, the collection device further includes a collection structure connected to the body of the collection device, wherein the roller brush assembly is mounted on the collection structure.