Rolling brush assembly and cleaning device

Abstract

The utility model discloses a rolling brush assembly and a cleaning device. The rolling brush assembly comprises a shell, a rolling brush part and a comb tooth part, and the shell is provided with a containing cavity and an air suction opening communicating with the containing cavity; the rolling brush part is located in the containing cavity, the rolling brush part is rotationally connected with the shell through a rotating shaft, a bristle structure is arranged on the circumferential side of the rolling brush part, the bristle structure is spirally arranged in the circumferential direction of the rolling brush part, and a first gap opposite to the air suction opening is formed in the rolling brush part; the comb tooth part is installed on the inner side wall of the containing cavity, the comb tooth part comprises a plurality of tooth structures arranged at intervals in the axial direction of the rotating shaft, the comb tooth part comprises a near end close to the air suction port and a far end away from the air suction port relative to the near end, and hooking structures are arranged on at least part of the tooth structures located at the near end. According to the embodiment of the invention, the comb tooth part is arranged, and the hooking structure is only arranged on the tooth structure closest to the air suction port, so that the problem that hair is wound on the rolling brush and is difficult to clean can be effectively solved.

Description

Technical Field

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

[0002] Cleaning equipment is gradually evolving from basic intelligence to a higher level of automation, replacing manual cleaning and becoming an indispensable cleaning helper for many households, such as cleaning robots and handheld vacuum cleaners. Many cleaning devices are equipped with roller brushes. During cleaning, hair often gets caught in the roller brush and is difficult to remove. Over time, this accumulated hair affects the lifespan of the roller brush. Utility Model Content

[0003] This application provides a roller brush assembly and a cleaning device that can effectively improve the problem of hair getting tangled on the roller brush and being difficult to clean.

[0004] In a first aspect, embodiments of this application provide a roller brush assembly, including:

[0005] The housing has a receiving cavity and an air intake communicating with the receiving cavity;

[0006] A roller brush is located in the receiving cavity. The roller brush is rotatably connected to the housing via a rotating shaft. A bristle structure is provided on the periphery of the roller brush. The bristle structure is arranged in a spiral around the periphery of the roller brush. The roller brush has a first gap opposite to the position of the air inlet.

[0007] A comb-like portion is installed on the inner wall of the receiving cavity. The comb-like portion includes a plurality of tooth structures arranged axially at intervals along the rotating shaft. The comb-like portion includes a proximal end near the air intake and a distal end away from the air intake relative to the proximal end. The hook structure is provided on at least a portion of the tooth structure located at the proximal end.

[0008] Secondly, embodiments of this application also provide a cleaning device, comprising:

[0009] The roller brush assembly as described in any of the above embodiments; and,

[0010] A vacuuming assembly has a vacuum chamber that is connected to an air intake.

[0011] Based on the roller brush assembly and cleaning device in this embodiment, this embodiment, by setting a comb-like part and providing hook structures on the tooth structure closest to the air inlet, allows the tooth structure without hook structures to work together with the bristle structure to help the hair on the roller brush converge towards the first gap during rotation. The tooth structure with hook structures can hook down the hair converging towards the first gap, allowing the hair to detach from the roller brush and be more easily discharged from the first gap towards the air inlet, thus achieving an anti-tangling effect. Simultaneously, the hook structures are only set on the tooth structure closest to the air inlet, preventing the hair from becoming increasingly entangled with the roller brush due to excessive hook structures on the tooth structure. In other words, the comb-like part in this embodiment can reduce the probability of hair getting stuck in the roller brush. Attached Figure Description

[0012] 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 only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the roller brush assembly in one embodiment of this application;

[0014] Figure 2 This is a schematic cross-sectional view of the roller brush assembly along the axis of rotation in one embodiment of this application;

[0015] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0016] Figure 4 This is a schematic diagram of the comb teeth in one embodiment of this application;

[0017] Figure 5 This is a schematic diagram of the structure of the roller brush in one embodiment of this application;

[0018] Figure 6 for Figure 4 Enlarged structural diagram at point B;

[0019] Figure 7 This is a schematic diagram of the cleaning device in one embodiment of this application.

[0020] Figure label:

[0021] 1. Roller brush assembly;

[0022] 10. Shell; 11. Receiving cavity; 12. Inlet; 13. First opening;

[0023] 20. Roller brush section; 21. Rotating shaft; 22. Bristle structure; 221. First bristle; 222. Second bristle; 23. First gap; 24. First roller brush; 25. Second roller brush; 26. First brush plate; 27. Second brush plate;

[0024] 30. Comb teeth; 31. Tooth structure; 311. First sidewall; 312. Second sidewall; 313. First end; 314. Second end; 32. Hook structure; 33. First tooth group; 331. First tooth structure; 34. Second tooth group; 332. Second tooth structure; 35. Mounting plate;

[0025] 2. Cleaning device; 40. Vacuuming assembly; 50. Drive assembly;

[0026] M, the first line of symmetry. Detailed Implementation

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, a clear and complete description will be provided below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in 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.

[0028] In related technologies, many cleaning devices are equipped with roller brushes. During the cleaning process, hair often gets caught in the roller brush and is difficult to clean. Over time, the hard-to-clean hair will accumulate and affect the lifespan of the roller brush.

[0029] Regarding the above situation, firstly, please refer to [link / reference needed]. Figures 1-3 This application proposes a roller brush assembly 1, including a housing 10, a roller brush portion 20, and a comb portion 30.

[0030] The housing 10 has a receiving cavity 11, in which the roller brush 20 is located. The roller brush 20 is rotatably connected to the housing 10 via a rotating shaft 21. The comb tooth 30 is installed on the inner side wall of the receiving cavity 11. The housing 10 provides a base and installation space for the roller brush 20 and the comb tooth 30. The housing 10 also has a first opening 13. After the roller brush 20 is installed in the receiving cavity 11, at least a portion of the roller brush 20 is exposed through the first opening 13 to facilitate the cleaning work of the roller brush 20.

[0031] The housing 10 has an air intake 12 communicating with the receiving cavity 11. The roller brush 20 has a bristle structure 22 on its periphery. The bristle structure 22 is arranged in a spiral around the circumference of the roller brush 20. The roller brush 20 has a first gap 23 opposite to the position of the air intake 12. It can be understood that when the roller brush assembly 1 picks up hair or garbage and other impurities during cleaning, the spiral bristle structure 22 on the roller brush 20 rotates and generates an airflow toward the first gap 23. This allows most of the impurities to gather on the roller brush 20 toward the position of the first gap 23, so that most of the impurities can be sucked out of the receiving cavity 11 through the air intake 12 opposite to the position of the first gap 23.

[0032] The comb section 30 includes a plurality of tooth structures 31 arranged axially at intervals along the rotation axis 21. The tooth structures 31 and the bristle structure 22 can jointly assist the hair on the roller brush section 20 to converge towards the first gap 23. The comb section 30 includes a proximal end near the air intake 12 and a distal end away from the air intake 12 relative to the proximal end. At least some of the tooth structures 31 located at the proximal end are provided with hook structures 32. Multiple tooth structures 31 can be provided on both the proximal end and the distal end. Preferably, the two tooth knots closest to the air intake 12 are... The structure 31 is provided with a hook structure 32, which can hook off at least some of the hair on the roller brush 20. In other words, the hook structure 32 can prevent at least some of the hair on the roller brush 20 from rotating with the roller brush 20. The hook structure 32 is located near the air intake 12, that is, near the first gap 23. Therefore, the hair hooked off by the hook structure 32 can be easily sucked out from the first gap 23 and the air intake 12, thereby improving the problem of hair being difficult to clean when tangled on the roller brush. The hook structure 32 can be toothed or barbed to hook off the hair on the roller brush 20, preventing the hair from rotating with the roller brush 20 and making it easier for the hair to be sucked away from the air intake 12.

[0033] Specifically, the hook structure 32 is only provided on the tooth structure 31 near the air intake 12. This prevents the hair from becoming increasingly entangled with the roller brush 20 due to the excessive number of hook structures 32 on the tooth structure 31. In other words, the comb tooth 30 in this embodiment can reduce the probability of hair getting stuck in the roller brush 20. For example, hook structures 32 are provided on the two tooth structures 31 closest to the air intake 12, while hook structures 32 are not provided on the other tooth structures 31. As a result, during the rotation of the roller brush 20, the tooth structures 31 without hook structures 32 can work together with the bristle structure 22 to help the hair on the roller brush 20 converge towards the first gap 23. The two tooth structures 31 with hook structures 32 can hook down the hair that is converging towards the first gap 23 on the roller brush 20, allowing the hair to detach from the roller brush 20 and be more easily discharged from the first gap 23 to the air intake 12, thereby achieving the effect of preventing entanglement.

[0034] In some embodiments, a portion of the tooth structure 31 in the comb tooth portion 30 is provided with a hook structure 32, and the tooth structure 31 provided with the hook structure 32 is a hook tooth. Another portion of the tooth structure 31 in the comb tooth portion 30 is provided with a guide sidewall for contacting the bristle structure 22 (equivalent to...). Figure 6 The first sidewall 311 of the middle is provided with a tooth structure 31 that is a guide tooth; at least part of the guide tooth is at a distance from the air inlet 12 than the distance from the hook tooth to the air inlet 12.

[0035] Specifically, at least a portion of the tooth structure 31 located at the proximal end is provided with a hook structure 32, that is, the tooth structure 31 near the air intake 12 is provided with a hook structure 32. The tooth structure 31 near the air intake 12 is a hook tooth, which can hook down the hairs that converge on the roller brush 20 toward the first gap 23, so that the hairs detach from the roller brush 20 and are more easily discharged from the first gap 23 toward the air intake 12. The tooth structure located at the distal end is not provided with a hook structure 32, and the tooth structure 31 without a hook structure 32 is provided with a guide sidewall, which, together with the bristle structure 22, guides the hairs on the roller brush 20 so that the hairs on the roller brush 20 converge toward the first gap 23.

[0036] Please see Figures 3-4 In some embodiments of this application, the comb tooth portion 30 further includes a mounting plate 35 and a snap-fit ​​member (not shown in the figure). The snap-fit ​​member and the tooth structure 31 are disposed on opposite sides of the mounting plate 35. The mounting plate 35 is snapped into the housing 10 through the snap-fit ​​member to facilitate the installation and replacement of the comb tooth portion 30.

[0037] Specifically, the mounting plate 35 extends axially along the rotating shaft 21, so that when the toothed structures 31 are mounted on the mounting plate 35, they can be arranged at intervals along the axial direction of the rotating shaft 21. Furthermore, the length of the mounting plate 35 along the axial direction of the rotating shaft 21 is greater than or equal to the length of the roller brush portion 20 along the axial direction of the rotating shaft 21, ensuring that all the bristle structures 22 on the roller brush portion 20 can contact the toothed structures 31 on the mounting plate 35. For example, both the mounting plate 35 and the snap-fit ​​component can be made of hard plastic material to improve the strength of the mounting plate 35. The toothed structures 31 can be made of nylon material, because nylon is not only wear-resistant and heat-resistant, but also has a smooth surface that does not easily damage the bristle structures 22.

[0038] In some embodiments, the extending direction of the tooth structure 31 is the same as the spiral direction of the bristle structure 22, thereby ensuring that the hairs on the roller brush portion 20 are subjected to uniform force between the tooth structure 31 and the bristle structure 22. This facilitates the combined flow of the tooth structure 31 and the bristle structure 22 in guiding the hairs on the roller brush portion 20. Simultaneously, the extending directions of the multiple tooth structures 31 can also be parallel to each other, further ensuring uniform force on the hairs on the roller brush portion 20 and facilitating the flow of the hairs on the roller brush portion 20.

[0039] Please see Figures 2-3 In some embodiments of this application, the hook structure 32 is located on the side of the tooth structure 31 facing the air intake 12. That is, the tooth structure 31 has a first sidewall 311, the hook structure 32 is disposed on the first sidewall 311, and the air intake 12 is disposed close to the first sidewall 311.

[0040] In some embodiments, on the rotation path of the roller brush 20, the air intake 12 is arranged upstream of the rotation path of the roller brush 20, and the tooth structure 31 is arranged downstream of the rotation path of the roller brush 20, that is, in Figure 2 In the middle, the roller brush 20 rotates counterclockwise. At this time, the bristle structure 22 on the roller brush 20 will first pass the position of the air inlet 12, and then pass the position of the tooth structure 31. During the process of the bristle structure 22 passing the position of the tooth structure 31, the bristle structure 22 first passes the hook structure 32 on the tooth structure 31. This allows the hair on the roller brush 20 to be hooked by the hook structure, so that the hooked hair is located near the air inlet 12 and can be more easily sucked out from the air inlet 12 without getting tangled on the roller brush 20.

[0041] Further, please see Figure 3In some embodiments of this application, the tooth structure 31 also has a second sidewall 312 disposed opposite to the inner sidewall of the receiving cavity 11. The second sidewall 312 extends obliquely away from the first sidewall 311 and close to the inner sidewall of the receiving cavity 11. That is, the second sidewall 312 on the tooth structure 31 is disposed toward the roller brush portion 20. The second sidewall 312 may be a sloping surface or a concave curved surface, thereby forming a tooth structure 31 shape with one end high and the other end low, which serves as a transition for the tooth structure 31, reducing the resistance when the bristle structure 22 contacts the tooth structure 31, thereby reducing the adverse effect of the comb portion 30 on the rotation of the roller brush portion 20.

[0042] Please see Figure 5 In some embodiments of this application, the roller brush portion 20 includes a first roller brush 24 and a second roller brush 25 arranged axially at intervals along the rotating shaft 21, with a first gap 23 located between the first roller brush 24 and the second roller brush 25. The roller brush portion 20 can be a single section, meaning the first roller brush 24 and the second roller brush 25 are rotatably connected to the housing 10 via the same rotating shaft 21, and a portion of the rotating shaft 21 may be exposed at the first gap 23. Alternatively, the roller brush portion 20 can be a two-section section, meaning the first roller brush 24 and the second roller brush 25 are rotatably connected to the housing 10 via different rotating shafts 21, and a portion of the rotating shaft 21 may not be exposed at the first gap 23.

[0043] like Figure 5 As shown, the bristle structure 22 includes a first bristle 221 and a second bristle 222. The first bristle 221 is disposed on the periphery of the first roller brush 24, and the second bristle 222 is disposed on the periphery of the second roller brush 25. Along the axial direction of the rotating shaft 21, the spiral direction of the first bristle 221 is opposite to that of the second bristle 222. The spiral can be left-handed or right-handed. If the spiral is counterclockwise from the center of the spiral along the axial direction of the rotating shaft 21, it is left-handed; otherwise, it is right-handed. The spiral direction of one of the first bristle 221 and the second bristle 222 is left-handed, and the spiral direction of the other is right-handed. This allows the hair to gather from the outside of the first roller brush 24 and the second roller brush 25 towards the first gap 23 when it is rolled into the roller brush part 20, so that the hair can be sucked away from the first gap 23. This prevents the hair from accumulating on the roller brush assembly 1 for a long time and affecting the service life of the roller brush part 20.

[0044] Specifically, the first bristles 221 are arranged in multiple rows, with adjacent rows of first bristles 221 arranged obliquely parallel. Similarly, the second bristles 222 are arranged in multiple rows, with adjacent rows of second bristles 222 arranged obliquely parallel. It can be understood that the bristles themselves are arranged in a spiral pattern on the roller brush section 20, thus ensuring that adjacent rows of bristles are arranged obliquely parallel. This guarantees a uniform distribution of contact time between the bristles and the ground, shortens the contact time interval between the bristles and the ground, and thereby improves the cleaning efficiency of the roller brush section 20.

[0045] In some embodiments, the orthographic projection of the first bristle 221 on the rotating shaft 21 partially overlaps with the orthographic projection of the second bristle 222 on the rotating shaft 21. That is, although there is a gap between the first roller brush 24 and the second roller brush 25, both the first bristle 221 and the second bristle 222 extend to the middle gap position. When the roller brush assembly 1 is cleaning, the first bristle 221 and the second bristle 222 can not only sweep the position of the roller brush part 20, but also sweep the position of the first gap 23 between the two roller brush parts 20, thereby preventing the roller brush assembly 1 from missing the middle during cleaning. The first bristle 221 on the first roller brush 24 and the second bristle 222 on the second roller brush 25 are asymmetrically arranged with respect to the first line of symmetry. At the same time, the first roller brush 24 and the second roller brush 25 rotate in the same direction and at the same speed, thereby avoiding mutual interference when rotating due to the partial overlap of the orthographic projection of the first bristle 221 and the second bristle 222.

[0046] like Figure 5 As shown, in some embodiments, a first brush blade 26 is further provided on the periphery of the first roller brush 24. The first brush blade 26 is arranged in a spiral around the periphery of the first roller brush 24. The first brush blade 26 and the first bristles 221 are arranged side by side and spaced apart around the periphery of the first roller brush 24, and the first brush blade 26 and the first bristles 221 are alternately spaced apart. A second brush blade 27 is further provided on the periphery of the second roller brush 25. The second brush blade 27 is arranged in a spiral around the periphery of the second roller brush 25. The second brush blade 27 and the second bristles 222 are arranged side by side and spaced apart around the periphery of the second roller brush 25, and the second brush blade 27 and the second bristles 222 are alternately spaced apart. Understandably, the first brush plate 26 and the second brush plate 27, through their planar structure, make it easier to sweep up the garbage on the ground. The first bristle 221 and the second bristle 222, through their multiple clumps of bristles, make contact with the ground, further sweeping up hair and other debris. When the roller brush assembly 1 is sweeping the ground, the contact time between the bristles and brush plates and the ground is greatly shortened, and the roller brush assembly 1 sweeps up the garbage and hair in various locations on the ground more thoroughly, so that the first roller brush 24 and the second roller brush 25 can better complete the sweeping work, further improving the sweeping efficiency of the roller brush assembly 1.

[0047] Please see Figures 4-5 In some embodiments of this application, the first roller brush 24 and the second roller brush 25 are connected by a first symmetry line M, which is perpendicular to the axis of rotation of the shaft 21; the comb tooth section 30 includes a first tooth group 33 and a second tooth group 34, both of which include multiple tooth structures 31, and the first tooth group 33 and the second tooth group 34 are symmetrically distributed about the first symmetry line M.

[0048] Specifically, the first roller brush 24 is positioned opposite to the first tooth group 33, and the second roller brush 25 is positioned opposite to the second tooth group 34. This allows the first bristles 221 and the first tooth group 33, and the second bristles 222 and the second tooth group 34, to synchronously guide the movement of hair on the two different roller brush sections 20. This makes the hair at both ends of the roller brush section 20 converge more comprehensively to the first gap 23. The symmetrical distribution of the first tooth group 33 and the second tooth group 34 makes the hair on the roller brush section 20 evenly stressed, which is beneficial for guiding the hair on the roller brush section 20.

[0049] Furthermore, the extension direction of the tooth structure 32 in the first tooth group 33 is the same as the spiral direction of the first bristle 221, and the extension direction of the tooth structure 32 in the second tooth group 34 is the same as the spiral direction of the second bristle 222. This ensures that the hairs on the roller brush 20 are subjected to uniform force on the first bristle 221 and the tooth structure 32 in the first tooth group 33, which is beneficial for the first bristle 221 and the tooth structure 32 in the first tooth group 33 to jointly guide the hairs on the roller brush 20. Similarly, the second bristle 222 and the tooth structure 32 in the second tooth group 34 can also jointly guide the hairs on the roller brush 20.

[0050] Further, please see Figures 4-6 The first tooth group 33 includes a first tooth structure 331 near the first line of symmetry M, and the second tooth group 34 includes a second tooth structure 332 near the first line of symmetry M. Both the first tooth structure 331 and the second tooth structure 332 are provided with hook structures 32, and the first tooth structure 331 and the second tooth structure 332 are symmetrically distributed about the first line of symmetry M.

[0051] The first tooth structure 331 and the second tooth structure 332 can each be provided with one or more. For example, the first tooth group 33 includes a first tooth structure 331 close to the first line of symmetry M, and the second tooth group 34 includes a second tooth structure 332 close to the first line of symmetry M. The first tooth structure 331 and the second tooth structure 332 are close to the first gap 23, so that after the hook structure 32 on the first tooth structure 331 and the second tooth structure 332 hooks the hair down, it can be sucked out from the air intake 12 more smoothly.

[0052] Furthermore, please see Figure 4 The multiple tooth structures 31 in the first tooth group 33 extend in parallel directions, and the multiple tooth structures 31 in the second tooth group 34 extend in parallel directions, so that the hair is subjected to uniform force on the roller brush part 20, which is beneficial to guide the hair on the roller brush part 20.

[0053] Further, please see Figure 6The tooth structure 31 includes a first end 313 and a second end 314 disposed opposite to each other. The first sidewall 311 is located at the first end 313. On the rotation path of the roller brush 20, as the brush bristle structure 22 passes through the tooth structure 31, it first passes the position of the first end 313 on the tooth structure 31, and then passes the position of the second end 314 on the tooth structure 31. The distance between the first end 313 and the first line of symmetry M along the axial direction of the rotation axis 21 is S1, and the distance between the second end 314 and the first line of symmetry M along the axial direction of the rotation axis 21 is S2, where S1 < S2. That is, along the axial direction of the rotation axis 21, the vertical distance from the first end 313 to the first line of symmetry M is less than the vertical distance from the second end 314 to the first line of symmetry M.

[0054] It is understandable that the tooth structure 31 in the first tooth group 33 and the tooth structure 31 in the second tooth group 34 are tilted in opposite directions relative to the rotating shaft 21. Taking the first tooth structure 331 and the second tooth structure 332 as an example, the first tooth structure 331 and the second tooth structure 332 are arranged in a figure-eight shape, so that the comb tooth part 30 and the bristle structure 22 can work together to help the hair rolled on the roller brush part 20 to gather towards the first gap 23. At the same time, the first tooth structure 331 and the second tooth structure 332 near the first symmetry line M have hook structures 32, which can block the hair wrapped on the roller brush part 20 so that the hair can be sucked out of the receiving cavity 11 through the air inlet 12 opposite to the position of the first gap 23.

[0055] Specifically, taking the first roller brush 24 as an example, the first bristles 221 have a fixed end and a free end that are arranged opposite to each other. The fixed end is connected to the first roller brush 24, and the free end is inclined towards the direction close to the second roller brush 25. The tooth structure 31 in the first tooth group 33 is inclined away from the second roller brush 25. That is to say, the inclination direction of the first bristles 221 and the tooth structure 31 in the first tooth group 33 is opposite. As a result, friction is generated between the first bristles 221 and the first tooth group 33. This allows the roller brush assembly 1 to suck up hair during the cleaning process. Under the action of the first bristles 221 and the first tooth group 33, the hair gathers at the first gap 23. The gathered hair is blocked by the hook structure 32 on the first tooth structure 331 near the air intake 12, reducing the hair from getting tangled on the first roller brush 24, and thus making it easier to be sucked out from the air intake 12. The second bristles 222 and the second tooth group 34 on the second roller brush 25 are symmetrically arranged with the first roller brush 24 about the first symmetry line M, and the working principle of the second roller brush 25 is the same as that of the first roller brush 24, which will not be described in detail here.

[0056] Secondly, such as Figure 7 As shown, this application embodiment also provides a cleaning device 2, including a dust collection component 40 and a roller brush component 1 as described in any of the above embodiments. The dust collection component 40 has a dust collection chamber, which is connected to the air intake 12.

[0057] Specifically, the vacuuming assembly 40 includes a fan for suction, with the fan's inlet connected to the suction port 12 and the fan's outlet connected to the vacuum chamber. When the roller brush assembly 1 sucks in hair during cleaning, the hair gathers at the first gap 23. The fan uses the suction force of the inlet to collect the hair gathered at the first gap 23 into the vacuum chamber for subsequent cleaning. The cleaning device 2 also includes a drive assembly 50, which is connected to the roller brush assembly 1 to drive the roller brush 20 to rotate. The drive assembly 50 may include a motor for outputting power and a gearbox for speed regulation.

[0058] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0059] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A roller brush assembly, characterized in that, include: The housing has a receiving cavity and an air intake communicating with the receiving cavity; A roller brush is located in the receiving cavity. The roller brush is rotatably connected to the housing via a rotating shaft. A bristle structure is provided on the periphery of the roller brush. The bristle structure is arranged in a spiral around the periphery of the roller brush. The roller brush has a first gap opposite to the position of the air inlet. A comb-like portion is installed on the inner sidewall of the receiving cavity. The comb-like portion includes a plurality of tooth structures arranged axially at intervals along the rotating shaft. The comb-like portion includes a proximal end near the air intake and a distal end away from the air intake relative to the proximal end. At least a portion of the tooth structure located at the proximal end is provided with a hook structure.

2. The roller brush assembly according to claim 1, characterized in that, A portion of the comb teeth has a hook structure on its tooth structure, and the tooth structure with the hook structure is a hook tooth. Another portion of the comb teeth has a guide sidewall for contacting the bristle structure, and the tooth structure with the guide sidewall is a guide tooth. At least some of the guide teeth are at a distance greater than the distance between the hook teeth and the air intake.

3. The roller brush assembly according to claim 1, characterized in that, Along the rotation path of the roller brush, the air intake is located upstream of the rotation path of the roller brush, and the tooth structure is located downstream of the rotation path of the roller brush; and / or, the hook structure is located on the side of the tooth structure facing the air intake.

4. The roller brush assembly according to claim 3, characterized in that, The tooth structure has a first sidewall and a second sidewall. The hook structure is disposed on the first sidewall. The second sidewall is disposed opposite to the inner sidewall of the receiving cavity. The second sidewall extends obliquely away from the first sidewall and close to the inner sidewall of the receiving cavity.

5. The roller brush assembly according to claim 1, characterized in that, The tooth structure extends in the same direction as the helical direction of the bristle structure; and / or, the extension directions of the plurality of tooth structures are parallel to each other.

6. The roller brush assembly according to claim 1, characterized in that, The roller brush section includes a first roller brush and a second roller brush arranged at an axial distance along the rotating shaft, and the first gap is located between the first roller brush and the second roller brush. The bristle structure includes a first bristle and a second bristle. The first bristle is disposed on the periphery of the first roller brush, and the second bristle is disposed on the periphery of the second roller brush. Along the axial direction of the rotating shaft, the spiral direction of the first bristle is opposite to that of the second bristle.

7. The roller brush assembly according to claim 6, characterized in that, The orthographic projection of the first bristle on the rotating shaft partially overlaps with the orthographic projection of the second bristle on the rotating shaft.

8. The roller brush assembly according to claim 6, characterized in that, The first roller brush and the second roller brush have a first line of symmetry, which is perpendicular to the axis of rotation of the shaft. The comb section includes a first tooth group and a second tooth group, both of which include multiple tooth structures. The first tooth group and the second tooth group are symmetrically distributed about the first line of symmetry.

9. The roller brush assembly according to claim 8, characterized in that, The tooth structure in the first tooth group extends in the same direction as the spiral direction of the first bristles, and the tooth structure in the second tooth group extends in the same direction as the spiral direction of the second bristles.

10. The roller brush assembly according to claim 8, characterized in that, The first tooth group includes a first tooth structure near the first line of symmetry, and the second tooth group includes a second tooth structure near the first line of symmetry. The hook structure is provided on both the first tooth structure and the second tooth structure, and the first tooth structure and the second tooth structure are symmetrically distributed about the first line of symmetry.

11. The roller brush assembly according to claim 8, characterized in that, The extension directions of the plurality of tooth structures in the first tooth group are parallel to each other, and the extension directions of the plurality of tooth structures in the second tooth group are parallel to each other.

12. The roller brush assembly according to claim 8, characterized in that, The tooth structure has a first sidewall, and the hook structure is disposed on the first sidewall; The tooth structure includes a first end and a second end disposed opposite to each other. The first sidewall is located at the first end. The distance between the first end and the first line of symmetry along the axis of rotation is S1, and the distance between the second end and the first line of symmetry along the axis of rotation is S2, where S1 < S2.

13. The roller brush assembly according to claim 1, characterized in that, The comb teeth also include a mounting plate and a snap-fit ​​component. The snap-fit ​​component and the tooth structure are disposed on opposite sides of the mounting plate, and the mounting plate is snapped into the housing via the snap-fit ​​component.

14. A cleaning device, characterized in that, include: The roller brush assembly as described in any one of claims 1 to 13; as well as, A vacuuming assembly has a vacuum chamber that is connected to an air intake.

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