Rolling brush mechanism and cleaning device

Abstract

The application relates to a rolling brush mechanism and a cleaning device. The rolling brush mechanism comprises a mounting body, a rolling brush cavity and a dust suction port communicated with the rolling brush cavity; a rolling brush; a plurality of first comb tooth structures and a plurality of second comb tooth structures, which are arranged on the mounting body and close to the dust suction port and are spaced apart from each other along a first direction parallel to the axial direction of the rolling brush; the first comb tooth structure and the second comb tooth structure each comprise a first comb tooth part and a second comb tooth part, the first comb tooth part extends along a second direction parallel to the tangent direction of the outer circumferential surface of the rolling brush; the second comb tooth part of the first comb tooth structure protrudes from one side of the first comb tooth part along a third direction, the second comb tooth part of the second comb tooth structure protrudes from one side of the first comb tooth part along a fourth direction, the third direction is opposite to the fourth direction, and the third direction and the fourth direction are parallel to the first direction. In this way, the long and thin objects such as hairs can be hooked in the circumferential direction and the axial direction of the rolling brush, and the hair entangling and anti-hair entangling effects are improved.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to a roller brush mechanism and cleaning equipment. Background Technology

[0002] With the development of society and economy and the improvement of family living standards, household cleaning equipment has gradually entered the era of intelligence and mechanization. The emerging cleaning robots can liberate people from home cleaning work, effectively reduce people's workload in home cleaning, and alleviate the fatigue of people in the process of home cleaning.

[0003] Robotic vacuum cleaners are widely popular due to their efficient and convenient cleaning capabilities. In daily use, the roller brush is one of the core components of a robotic vacuum cleaner, used for sweeping and cleaning the floor. However, the roller brush in this technology often encounters the problem of getting tangled in long, thin objects such as hair during the cleaning process. This not only leads to clogging of the roller brush and reduced cleaning efficiency, but also increases the risk of damage to the roller brush and the internal structure of the machine. Utility Model Content

[0004] Therefore, it is necessary to address the problem that the roller brush becomes clogged due to hair, fuzz, or other long, thin objects, which reduces cleaning efficiency and increases the risk of damage to the roller brush and the internal structure of the machine. In this regard, a roller brush mechanism and cleaning equipment should be provided.

[0005] This application provides a roller brush mechanism, comprising:

[0006] The main body of the installation has a roller brush chamber and a dust suction port connected to the roller brush chamber;

[0007] A roller brush, rotatably mounted in the roller brush chamber; and

[0008] Multiple first comb tooth structures and multiple second comb tooth structures are all located on the mounting body and close to the dust suction port. All first comb tooth structures and all second comb tooth structures are spaced apart from each other along a first direction parallel to the axis of the roller brush.

[0009] Each first comb tooth structure and each second comb tooth structure includes a first comb tooth portion and a second comb tooth portion. The first comb tooth portion extends along a second direction, which is parallel to the tangent direction of the outer peripheral surface of the roller brush. The second comb tooth portion of the first comb tooth structure protrudes from one side of the first comb tooth portion along a third direction, and the second comb tooth portion of the second comb tooth structure protrudes from one side of the first comb tooth portion along a fourth direction. The third direction is opposite to the fourth direction, and both the third direction and the fourth direction are parallel to the first direction.

[0010] The aforementioned roller brush mechanism incorporates multiple first comb tooth structures and multiple second comb tooth structures positioned near the suction port, with each first and second comb tooth structure forming an L-shaped comb. Each first comb tooth can hook onto long, thin objects such as hair along the circumference of the roller brush during rotation, thus untangling these objects and preventing them from becoming entangled. The second comb tooth of the first comb tooth structure protrudes along a third direction from one side of the first comb tooth, while the second comb tooth of the second comb tooth structure protrudes along a fourth direction opposite to the third direction from one side of the first comb tooth. Therefore, when long, thin objects such as hair move axially on the roller brush, the second comb tooth in both directions can hook onto these objects moving in different axial directions, untangling them during rotation and further preventing them from becoming entangled. Therefore, by setting multiple first comb tooth structures and second comb tooth structures, hair and other long, thin objects can be hooked in both the circumferential and axial directions of the roller brush. This improves the effect of preventing hair and other long, thin objects from getting tangled in the roller brush, increases the cleaning efficiency of the roller brush, and reduces the risk of damage to the roller brush and the internal structure of the machine.

[0011] In one embodiment, the outer peripheral surface of the roller brush has a brush body, which includes a first brush body portion and a second brush body portion. The first brush body portion extends spirally from one end of the roller brush to the middle region, and the second brush body portion extends spirally from the other end of the roller brush to the middle region. The rotation direction of the first brush body portion is opposite to that of the second brush body portion, so that the axial thrust generated by the first brush body portion and the second brush body portion is opposite during the rotation of the roller brush.

[0012] All first comb teeth are provided corresponding to the first brush body; all second comb teeth are provided corresponding to the second brush body; the third direction is opposite to the axial thrust generated by the first brush body, and the fourth direction is opposite to the axial thrust generated by the second brush body.

[0013] Because all the first comb teeth are positioned corresponding to the first brush body, and the protruding direction of the second comb teeth of the first comb teeth is opposite to the axial thrust direction generated by the first brush body, long and thin objects such as hair wrapped around the first brush body will move axially under the action of the axial thrust and be hooked by the second comb teeth of the first comb teeth facing it. Therefore, during the rotation of the roller brush, the hair and other long and thin objects can be untangled from the roller brush, and further prevent the hair and other long and thin objects from tangling around the roller brush. Similarly, because all the second comb teeth are positioned corresponding to the second brush body, and the protruding direction of the second comb teeth of the second comb teeth is opposite to the axial thrust direction generated by the second brush body, long and thin objects such as hair wrapped around the second brush body will move axially under the action of the axial thrust and be hooked by the second comb teeth of the second comb teeth facing it. Therefore, during the rotation of the roller brush, the hair and other long and thin objects can be untangled from the roller brush, and further prevent the hair and other long and thin objects from tangling around the roller brush.

[0014] In one embodiment, the second direction is opposite to the rotation direction of the brush.

[0015] When the roller brush rotates, long and thin objects such as hair will wrap around it in the direction of rotation. Since the first comb teeth extend in a second direction opposite to the direction of rotation of the roller brush, when hooking long and thin objects such as hair, they can provide a force on the roller brush that is opposite to the direction of rotation of the roller brush, so that the long and thin objects such as hair can be pulled off in the opposite direction and untangled from the roller brush, thus improving the effect of untangling hair.

[0016] In one embodiment, along a fifth direction parallel to the radial direction of the roller brush, both the first comb structure and the second comb structure have a predetermined gap with the outer peripheral surface of the roller brush.

[0017] The aforementioned preset gap serves two purposes: firstly, it reduces frictional resistance and wear between the first and second comb tooth structures and the roller brush, thereby reducing noise and the load on the drive mechanism; secondly, it ensures unobstructed airflow between the first and second comb tooth structures and the roller brush, improving dust collection efficiency. Furthermore, this preset gap design ensures smooth airflow around the roller brush, effectively drawing dust and debris stirred up by the roller brush into the rear dust collection chamber. Additionally, the preset gap accommodates the roller brush's movement and deformation. When the roller brush rotates at high speed, it may experience slight movement or momentary deformation due to imbalance, uneven ground, or encountering obstacles. Without this preset gap, such movement or deformation would cause the roller brush to directly impact the first and second comb tooth structures, generating noise, vibration, and even damaging components. Therefore, this preset gap provides a buffer space, allowing the roller brush to move slightly within a normal range, avoiding hard collisions.

[0018] In one embodiment, the preset gap is X, where 0.1mm ≤ X ≤ 2mm.

[0019] If the preset gap is too small, it will increase the friction between the first and second comb structures and the roller brush, making it easier for long, thin objects such as hair to get stuck and obstructing airflow. If the preset gap is too large, it will cause the first and second comb structures to separate from the roller brush surface, making it difficult to hook long, thin objects such as hair onto the roller brush surface, thus reducing cleaning efficiency. Therefore, by setting the gap to 0.1mm≤X≤2mm, the friction between the first and second comb structures and the roller brush can be reduced, making it less likely for long, thin objects such as hair to get stuck, ensuring smooth airflow. In addition, it also improves the reliability of the first and second comb structures in hooking long, thin objects such as hair, thus improving cleaning efficiency.

[0020] In one embodiment, along the first direction, the spacing between any two adjacent first comb tooth structures and the spacing between any two adjacent second comb tooth structures are both S1, where 1mm≤S1≤20mm.

[0021] In some embodiments, the spacing between adjacent first comb tooth structures and second comb tooth structures is S2, where 1mm≤S2≤10mm.

[0022] By setting 1mm≤S1≤20mm, the risk of other objects getting stuck between two adjacent comb tooth structures can be reduced, thus improving the effect of untangling hair. It can also hook hair, hair and other thin objects on the roller brush more comprehensively, thus improving the efficiency of untangling and preventing hair from getting tangled.

[0023] In one embodiment, the sum of the number of the first comb structure and the second comb structure is n, where 20 ≤ n ≤ 60.

[0024] By setting the sum of the number of the first comb tooth structure and the second comb tooth structure, n, to be within the range of 20≤n≤60, it is possible to comprehensively hook long and thin objects such as hair on the roller brush, while also improving the reliability of the first and second comb tooth structures in hooking long and thin objects such as hair on the roller brush, and making it less likely for other objects to get stuck between adjacent comb tooth structures.

[0025] In one embodiment, the width of each first comb tooth is M1 along the first direction; and the height of the first comb tooth is H1 along the second direction.

[0026] Where 0.5mm≤M1≤4mm; and / or

[0027] 0.5mm≤H1≤4mm.

[0028] By setting the width M1 of the first comb teeth to a range of 0.5mm ≤ M1 ≤ 4mm, the reliability of hooking long, thin objects such as hair on the roller brush is improved, while the risk of the first comb teeth hooking other objects is reduced. This enhances the hair-untangling effect of the first comb teeth and reduces the difficulty for users to clean them. Similarly, by setting the height M1 of the first comb teeth to a range of 0.5mm ≤ H1 ≤ 4mm, the reliability of hooking long, thin objects such as hair on the roller brush is improved, while other objects are easily removed. This enhances the hair-untangling effect of the first comb teeth and reduces the difficulty for users to clean them.

[0029] In one embodiment, the width of each first comb tooth is M1 along the first direction; and the thickness of the first comb tooth is D1 along the sixth direction perpendicular to the first direction on the horizontal plane.

[0030] As M1 gradually decreases away from the second comb tooth portion along the second direction; and / or

[0031] As the second direction moves away from the second comb teeth, D1 gradually decreases.

[0032] As the width M1 of the first comb portion gradually decreases along the second direction away from the second comb portion, the first comb portion forms a sharp end at the end furthest from the second comb portion. This facilitates the entry of long, thin objects such as hair, thus improving the reliability of the first comb portion in hooking onto these objects on the roller brush. Similarly, as the thickness D1 of the first comb portion gradually decreases along the second direction away from the second comb portion, the first comb portion also forms a sharp end at the end furthest from the second comb portion. This again facilitates the entry of long, thin objects such as hair, thus improving the reliability of the first comb portion in hooking onto these objects on the roller brush.

[0033] In one embodiment, as D1 gradually decreases away from the second comb tooth portion along the second direction, the first comb tooth portion includes a first tooth surface and a second tooth surface along the sixth direction. The first tooth surface extends along the second direction and moves away from the second comb tooth portion along the second direction, while the second tooth surface gradually approaches the first tooth surface.

[0034] This configuration ensures that the thickness D1 of the first comb tooth gradually decreases while making the first tooth surface close to the outer peripheral surface of the roller brush. This allows long and thin objects such as hair on the roller brush to smoothly enter the inner side of the first comb tooth, further improving the reliability of the first comb tooth in hooking long and thin objects such as hair on the roller brush.

[0035] In one embodiment, the width of each second comb tooth is M2 along the first direction; and the height of the second comb tooth is H2 along the second direction.

[0036] Where 0.5mm≤M2≤4mm; and / or

[0037] 0.5mm≤H2≤4mm.

[0038] By setting the width M2 of the second comb teeth to a range of 0.5mm ≤ M2 ≤ 4mm, the reliability of hooking long, thin objects such as hair on the roller brush is improved, while also making it easier for other objects to dislodge. This enhances the hair-untangling effect of the second comb teeth and reduces the difficulty for users to clean them. Similarly, by setting the height H2 of the second comb teeth to a range of 0.5mm ≤ H2 ≤ 4mm, the reliability of hooking long, thin objects such as hair on the roller brush is improved, while also reducing the risk of the second comb teeth tangling with other objects. This enhances the hair-untangling effect of the second comb teeth and reduces the difficulty for users to clean them.

[0039] In one embodiment, the height of the second comb tooth portion is H2 along the second direction; and the thickness of the second comb tooth portion is D2 along the sixth direction perpendicular to the first direction on the horizontal plane.

[0040] As H2 gradually decreases away from the first comb tooth along the first direction; and / or

[0041] As the first comb moves away from the first comb tooth in the first direction, D2 gradually decreases.

[0042] As the second comb portion moves away from the first comb tooth portion along the first direction, its height H2 gradually decreases, resulting in a sharp end at the end furthest from the first comb tooth portion. This facilitates the entry of long, thin objects such as hair, improving the reliability of the second comb tooth portion in hooking onto these objects on the roller brush. Similarly, as the thickness D2 of the second comb portion gradually decreases along the first direction, it also forms a sharp end at the end furthest from the first comb tooth portion, further facilitating the entry of long, thin objects such as hair, improving the reliability of the second comb tooth portion in hooking onto these objects on the roller brush.

[0043] In one embodiment, the mounting body includes a housing and a brush cover. The brush cover is fitted with the housing and encloses the brush cavity. The dust suction port is located on the brush cover, and all the comb teeth are located on the brush cover.

[0044] By placing all the first and second comb teeth on the brush cover, the first and second comb teeth can be positioned on the wall of the brush chamber as close as possible to the dust inlet, rather than deep inside the brush chamber. This effectively prevents dust and other debris from accumulating inside the brush chamber due to the placement of the first and second comb teeth, reducing the likelihood of clogging.

[0045] In one embodiment, along the cleaning direction of the brush mechanism's comb tooth structure, all the first comb tooth structures and all the second comb tooth structures are arranged in front of the brush comb tooth structure.

[0046] When all the first comb teeth and all the second comb teeth are positioned in front of the roller brush comb teeth, it will not affect the dust collection at the rear end and thus the cleaning will not be affected. Furthermore, the first and second comb teeth are less likely to stick to other debris, thus improving the effect of the first and second comb teeth on untangling and preventing hair from getting tangled in the roller brush comb teeth.

[0047] In another aspect of this application, a cleaning device is provided, including a cleaning body and a roller brush mechanism as described in any of the above embodiments, wherein the roller brush mechanism is mounted on the cleaning body.

[0048] The aforementioned cleaning device, by simultaneously arranging multiple first comb tooth structures and multiple second comb tooth structures near the suction port, with each first and second comb tooth structure forming an L-shaped comb tooth, allows each first comb tooth to hook onto long, thin objects such as hair along the circumference of the roller brush during its rotation. This untangles the hair and other long, thin objects wrapped around the roller brush and further prevents them from becoming entangled in the brush. The second comb tooth of the first comb tooth structure protrudes along a third direction to one side of the first comb tooth, while the second comb tooth of the second comb tooth structure protrudes along a fourth direction opposite to the third direction to one side of the first comb tooth. Therefore, when long, thin objects such as hair move axially on the roller brush, the second comb tooth in both directions can hook onto the hair and other long, thin objects moving in different axial directions, untangling them during the roller brush's rotation and further preventing them from becoming entangled in the brush. Therefore, by setting multiple first comb tooth structures and second comb tooth structures, hair and other long, thin objects can be hooked in both the circumferential and axial directions of the roller brush. This improves the effect of preventing hair and other long, thin objects from getting tangled in the roller brush, increases the cleaning efficiency of the roller brush, and reduces the risk of damage to the roller brush and the internal structure of the machine. Attached Figure Description

[0049] Figure 1 This is an exploded structural diagram of the brush mechanism in one or more embodiments of this application.

[0050] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the roller brush mechanism.

[0051] Figure 3 for Figure 1 The bottom view of the roller brush mechanism shown.

[0052] Figure 4for Figure 1 The diagram shows the structure of the brush cover in the brush mechanism.

[0053] Figure 5 for Figure 4 The enlarged schematic diagram of part A of the roller brush cover shown.

[0054] Figure 6 for Figure 1 The diagram shows a half-section of the roller brush mechanism.

[0055] Figure 7 for Figure 6 An enlarged schematic diagram of part B of the roller brush mechanism shown.

[0056] Figure 8 for Figure 7 The diagram shows a schematic of the comb tooth structure at point B.

[0057] Figure 9 for Figure 8 The diagram shows the structure of the comb teeth.

[0058] Figure 10 for Figure 4 The diagram shows a partial structural diagram of the roller brush cover.

[0059] Figure 11 for Figure 10 A magnified view of part C of the roller brush cover shown.

[0060] Figure 12 for Figure 4 The top view of the roller brush cover shown.

[0061] Figure 13 for Figure 12 The enlarged schematic diagram of part D of the roller brush cover shown.

[0062] Explanation of reference numerals in the attached figures:

[0063] 100. Roller brush mechanism; 10. Mounting body; 11. Roller brush chamber; 12. Dust suction port; 13. Housing; 14. Roller brush cover; 20. Roller brush; 21. Brush body; 211. First brush body part; 212. Second brush body part; 30. First comb tooth structure; 40. Second comb tooth structure; 50. First comb tooth part; 51. First tooth surface; 52. Second tooth surface; 60. Second comb tooth part. Detailed Implementation

[0064] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0065] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0066] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0070] As mentioned in the background section, the roller brush of a robotic vacuum cleaner often encounters the problem of long, thin objects such as hair getting tangled during cleaning. Several solutions have been proposed in related technologies. For example, some robotic vacuum cleaners are equipped with blades to cut away these objects, preventing entanglement. However, blades increase manufacturing and maintenance costs, and may also damage furniture or injure users while cleaning the brush. Other robotic vacuum cleaners are equipped with unidirectional combs to straighten long, thin objects on the brush for easier pickup. However, unidirectional combs are not very effective at removing tangled hair from the brush and are ineffective at removing hair trapped inside the brush body.

[0071] Therefore, in order to solve the problem of roller brush clogging caused by hair, hair and other long objects getting tangled, thus reducing cleaning efficiency, this application designs a roller brush mechanism. By setting two comb teeth in different directions near the roller brush, the tangled hair is untangled from the roller brush from both the circumferential and axial directions, which improves the effect of preventing hair, hair and other long objects from getting tangled on the roller brush and improves the cleaning efficiency of the roller brush.

[0072] The roller brush mechanism of this application embodiment can be applied to cleaning equipment, including but not limited to sweeping robots, handheld vacuum cleaners, floor scrubbers, and mopping and washing machines.

[0073] See Figures 1-5An embodiment of this application provides a roller brush mechanism 100, including a mounting body 10, a roller brush 20, and a plurality of first comb tooth structures 30 and a plurality of second comb tooth structures 40. The mounting body 10 has a roller brush cavity 11 and a suction port 12 communicating with the roller brush cavity 11. The roller brush 20 is rotatably mounted in the roller brush cavity 11. The plurality of first comb tooth structures 30 and the plurality of second comb tooth structures 40 are all disposed on the mounting body 10 and close to the suction port 12. All the first comb tooth structures 30 and all the second comb tooth structures 40 are spaced apart from each other along a first direction A parallel to the axial direction of the roller brush 20. Each first comb tooth structure 30 and each second comb tooth structure 40 includes a first comb tooth portion 50 and a second comb tooth portion 60. The first comb tooth portion 50 is arranged along a second direction B (… Figure 6 As shown), the second comb tooth portion 60 of the first comb tooth structure 30 protrudes along a third direction C to one side of the first comb tooth portion 50, and the second comb tooth portion 60 of the second comb tooth structure 40 protrudes along a fourth direction D to one side of the first comb tooth portion 50. The second direction B is parallel to the tangent direction of the outer peripheral surface of the roller brush 20, the third direction C is opposite to the fourth direction D, and both the third direction C and the fourth direction D are parallel to the first direction A.

[0074] Mounting body 10 refers to the main structure for mounting the roller brush 20. Typically, mounting body 10 includes a housing 13 and a roller brush cover 14. The roller brush cover 14 mates with the housing 13 and encloses it to form a roller brush cavity 11. The roller brush cover 14 has a suction port 12 that allows the roller brush 20 to contact the ground, enabling the roller brush 20 to perform cleaning work by contacting the ground through the suction port 12 when rotating. Mounting body 10 also has a dust outlet communicating with the roller brush cavity 11. The dust outlet is located on the housing 13 and connects to the dust collection chamber of the cleaning equipment to collect debris sucked into the roller brush cavity 11 from the suction port 12 into the dust collection chamber.

[0075] The roller brush 20 is usually cylindrical and can rotate relative to the mounting body 10 around its own axis. The surface has a brush body 21 along the circumference. When the roller brush 20 rotates, the brush body 21 can pick up dust and other garbage on the ground and then suck the garbage in through negative pressure.

[0076] The first comb tooth structure 30 and the second comb tooth structure 40 refer to tooth-like structures capable of combing long, thin objects such as hair. When multiple first comb tooth structures 30 and multiple second comb tooth structures 40 are spaced apart along a first direction A, a comb-like structure can be formed in the first direction A. The first comb tooth portion 50 is one of the teeth of the first comb tooth structure 30 or the second comb tooth structure 40, and the second comb tooth portion 60 is the other tooth of the first comb tooth structure 30 or the second comb tooth structure 40. Since the first comb tooth portion 50 and the second comb tooth portion 60 are arranged in different directions, each first comb tooth structure 30 and each second comb tooth structure 40 correspondingly forms L-shaped comb teeth. However, since the protrusion direction of the second comb tooth portion 60 of the first comb tooth structure 30 relative to the first comb tooth portion 50 is opposite to the protrusion direction of the second comb tooth portion 60 of the second comb tooth structure 40 relative to the first comb tooth portion 50, the L-shaped comb teeth formed by the first comb tooth structure 30 and the second comb tooth structure 40 are arranged in a mirror-symmetrical manner.

[0077] It should also be understood that the first comb tooth structure 30 and the second comb tooth structure 40 in this embodiment are mounted on the mounting body 10. Therefore, when the roller brush 20 rotates and drives the hair, hair or other long objects wrapped around it, they will move relative to the first comb tooth structure 30 and the second comb tooth structure 40. That is to say, there is relative movement between the hair, hair or other long objects and the first comb tooth structure 30 and the second comb tooth structure 40. So when the first comb tooth structure 30 and the second comb tooth structure 40 hook the hair, hair or other long objects, the roller brush 20 will continue to rotate and pull the hair, hair or other long objects off the roller brush 20.

[0078] Therefore, the roller brush mechanism 100 in this embodiment of the application simultaneously provides multiple first comb tooth structures 30 and multiple second comb tooth structures 40 near the dust suction port 12, and each first comb tooth structure 30 and second comb tooth structure 40 forms an L-shaped comb tooth. Each first comb tooth 50 can hook hair, hair, or other long, thin objects along the circumference of the roller brush 20 during rotation, thereby untangling the hair, hair, or other long, thin objects wrapped around the roller brush 20 and further preventing hair, hair, or other long, thin objects from wrapping around the roller brush 20. The teeth 60 protrude along a third direction C on one side of the first comb teeth 50, while the second comb teeth 60 of the second comb tooth structure 40 protrude along a fourth direction D opposite to the third direction C on one side of the first comb teeth 50. Therefore, when long and thin objects such as hair move axially on the roller brush 20, the second comb teeth 60 in both directions can hook onto the long and thin objects such as hair moving in different axial directions, so as to untangle the long and thin objects such as hair from the roller brush 20 during the rotation of the roller brush 20, and further prevent the long and thin objects such as hair from getting tangled in the roller brush 20. Therefore, by setting multiple first comb tooth structures 30 and second comb tooth structures 40, long and thin objects such as hair can be hooked in both the circumferential and axial directions of the roller brush 20, improving the effect of preventing long and thin objects such as hair from getting tangled in the roller brush 20, improving the cleaning efficiency of the roller brush 20, and reducing the risk of damage to the roller brush 20 and the internal structure of the machine.

[0079] For the sake of simplicity, the action of "untangling hair, hair, or other long, thin objects that are wrapped around the roller brush 20" will be referred to as "untangling hair," and the action of "preventing hair, hair, or other long, thin objects from getting tangled around the roller brush 20" will be referred to as "anti-tangling."

[0080] See Figure 2 Specifically, in the embodiments of this application, all the first comb tooth structures 30 and all the second comb tooth structures 40 are disposed on the roller brush cover 14.

[0081] As mentioned above, the roller brush cavity 11 is formed by the roller brush cover 14 and the housing 13. Therefore, by placing all the first comb tooth structures 30 and all the second comb tooth structures 40 on the roller brush cover 14, the first comb tooth structures 30 and the second comb tooth structures 40 can be placed on the cavity wall of the roller brush cavity 11 as close as possible to the dust inlet 12, and are avoided from being placed deep inside the roller brush cavity 11. This can effectively prevent the accumulation of dust and other debris in the roller brush cavity 11 due to the placement of the first comb tooth structures 30 and the second comb tooth structures 40, and reduce the possibility of clogging of the roller brush cavity 11.

[0082] See Figure 6 In the embodiments of this application, the second direction B is opposite to the rotation direction of the roller brush 20.

[0083] The rotation direction of the roller brush 20 is counterclockwise. The second direction B is parallel to the tangent direction of the outer peripheral surface of the roller brush 20 and is opposite to the counterclockwise direction, that is, in the clockwise direction.

[0084] When the roller brush 20 rotates, long and thin objects such as hair will wrap around it in the direction of rotation of the roller brush 20. Since the first comb tooth 50 extends in the second direction B opposite to the direction of rotation of the roller brush 20, it can provide a force on the roller brush 20 that is opposite to the direction of rotation of the roller brush 20 when it hooks long and thin objects such as hair, so that the long and thin objects such as hair can be pulled off in the opposite direction and untangled from the roller brush 20, thereby improving the effect of untangling hair.

[0085] In some embodiments, the outer peripheral surface of the roller brush 20 has a brush body 21, which includes a first brush body portion 211 and a second brush body portion 212. The first brush body portion 211 extends spirally from one end of the roller brush 20 to a middle region, and the second brush body portion 212 extends spirally from the other end of the roller brush to a middle region. The rotation direction of the first brush body portion 211 is opposite to that of the second brush body portion 212, so that the axial thrust F generated by the first brush body portion 211 and the second brush body portion 212 is opposite during the rotation of the roller brush 20. All the first comb tooth structures 30 are provided corresponding to the first brush body portion 211, and all the second comb tooth structures 40 are provided corresponding to the second brush body portion 212. The third direction C is opposite to the direction of the axial thrust F generated by the first brush body portion 211, and the fourth direction D is opposite to the direction of the axial thrust F generated by the second brush body portion 212.

[0086] The arrangement of all first comb tooth structures 30 corresponding to the first brush body portion 211 means that all first comb tooth structures 30 are positioned corresponding to the first brush body portion 211 so that all first comb tooth structures 30 can untangle and prevent hair from tangling in the first brush body portion 211. The arrangement of all second comb tooth structures 40 corresponding to the second brush body portion 212 means that all second comb tooth structures 40 are positioned corresponding to the second brush body portion 212 so that all second comb tooth structures 40 can untangle and prevent hair from tangling in the second brush body portion 212.

[0087] Because the first brush body 211 and the second brush body 212 are spirally arranged along the axial direction of the roller brush 20, during the rotation of the roller brush 20, the first brush body 211 and the second brush body 212 will generate a combined motion. They expand outward under centrifugal force, and the spiral lead generates an axial thrust F, causing long, thin objects such as hair wrapped around the brush body 21 to move along the axial direction of the roller brush 20. Specifically, the direction of the axial thrust F can be determined using the left-hand and right-hand rules. For example... Figure 3As shown, the spiral direction of the first brush body 211 is left-handed. Therefore, when using a left hand to make a loose fist, the four fingers point in the same direction as the spiral and opposite to the rotation direction of the roller brush 20, while the thumb points in the direction of the axial thrust F. The spiral direction of the second brush body 212 is right-handed. Therefore, when using a right hand to make a loose fist, the four fingers point in the same direction as the spiral and opposite to the rotation direction of the roller brush 20, while the thumb points in the direction of the axial thrust F.

[0088] It is understandable that the direction of the axial thrust F is parallel to the first direction A. Therefore, the third direction C and the fourth direction D are also parallel to the first direction A.

[0089] In the embodiments of this application, the first brush body portion 211 and the second brush body portion 212 each include multiple brushes, and each first brush body portion 211 and the second brush body portion 212 are arranged at intervals around the central axis of the roller brush 20.

[0090] In addition, the first brush body 211 and the second brush body 212 can be a rubber brush, a bristle brush, or a combination of a rubber brush and a bristle brush, and there are no specific limitations.

[0091] Therefore, since all the first comb tooth structures 30 are provided corresponding to the first brush body 211, and the protruding direction of the second comb tooth portion 60 of the first comb tooth structure 30 is opposite to the direction of the axial thrust F generated by the first brush body 211, the hair, hair and other long objects wrapped on the first brush body 211 will move axially under the action of the axial thrust F, and will be hooked by the second comb tooth portion 60 of the first comb tooth structure 30 facing it. Therefore, during the rotation of the roller brush 20, the hair, hair and other long objects can be unwrapped from the roller brush 20, and further prevent the hair, hair and other long objects from wrapping around the roller brush 20. Similarly, since all the second comb tooth structures 40 are provided corresponding to the second brush body 212, and the protruding direction of the second comb tooth portion 60 of the second comb tooth structure 40 is opposite to the direction of the axial thrust F generated by the second brush body 212, the hair, hair and other slender objects wrapped on the second brush body 212 will move axially under the action of the axial thrust F, and be hooked by the second comb tooth portion 60 of the second comb tooth structure 40 facing it. Therefore, during the rotation of the roller brush 20, the hair, hair and other slender objects can be unwrapped from the roller brush 20, and further prevent the hair, hair and other slender objects from wrapping around the roller brush 20.

[0092] See Figure 5 In some embodiments, all the first comb tooth structures 30 and all the second comb tooth structures 40 are disposed in front of the roller brush 20 along the cleaning direction of the roller brush mechanism 100.

[0093] The cleaning direction of the roller brush mechanism 100 refers to the forward cleaning direction of the roller brush mechanism 100 during operation. Figure 6 The horizontal direction shown is to the left.

[0094] When all the first comb tooth structures 30 and all the second comb tooth structures 40 are positioned in front of the roller brush 20, it will not affect the dust collection at the rear end and thus affect cleaning. Furthermore, the first comb tooth structures 30 and the second comb tooth structures 40 are less likely to adhere to other debris, thereby improving the effect of the first comb tooth structures 30 and all the second comb tooth structures 40 on untangling and preventing hair from getting tangled in the roller brush 20.

[0095] See Figure 7 In some embodiments, along a fifth direction E parallel to the radial direction of the roller brush 20, both the first comb structure 30 and the second comb structure 40 have a preset gap with the outer peripheral surface of the roller brush 20.

[0096] The aforementioned preset gap serves two purposes: firstly, it reduces frictional resistance and wear between the first and second comb tooth structures 30 and the roller brush 20, thereby reducing noise and the load on the drive mechanism; secondly, it ensures unobstructed airflow between the first and second comb tooth structures 30 and the roller brush 20, improving dust collection efficiency. Furthermore, this preset gap design ensures smooth airflow around the roller brush 20, effectively drawing dust and debris stirred up by the roller brush 20 into the rear dust collection chamber. Additionally, the preset gap accommodates the roller brush 20's movement and deformation. When the roller brush 20 rotates at high speed, it may experience slight movement or momentary deformation due to imbalance, uneven ground, or encountering obstacles. Without this preset gap, such movement or deformation would cause the roller brush 20 to directly impact the first and second comb tooth structures 30 and 40, resulting in noise, vibration, and even component damage. Therefore, this preset gap provides a buffer space, allowing the roller brush 20 to have slight movement within a normal range, avoiding hard collisions.

[0097] Specifically, the preset gap is X, where 0.1mm ≤ X ≤ 2mm.

[0098] If the preset gap is too small, it will increase the friction between the first comb tooth structure 30 and the second comb tooth structure 40 and the roller brush 20, making it easy for long and thin objects such as hair to get stuck and obstructing airflow. If the preset gap is too large, it will cause the first comb tooth structure 30 and the second comb tooth structure 40 to separate from the surface of the roller brush 20, making it difficult to hook long and thin objects such as hair on the surface of the roller brush 20, thus reducing cleaning efficiency. Therefore, by setting it to 0.1mm≤X≤2mm, the friction between the first comb tooth structure 30 and the second comb tooth structure 40 and the roller brush 20 can be reduced, making it less likely for long and thin objects such as hair to get stuck, ensuring smooth airflow. In addition, it also improves the reliability of the first comb tooth section 50 and the second comb tooth section 60 in hooking long and thin objects such as hair, thus improving cleaning efficiency.

[0099] Optionally, the preset gap X is 0.1mm, 0.5mm, 1mm, 1.5mm or 2mm.

[0100] See Figure 10 and Figure 11 In some embodiments, along the first direction A, the distance between any two adjacent first comb tooth structures 30 and the distance between any two adjacent second comb tooth structures 40 are both S1, where 1mm≤S1≤20mm.

[0101] If the distance between any two adjacent first comb tooth structures 30 is too small, other objects may get stuck between them, reducing the hair-untangling function of the first comb tooth structure 30. If the distance between any two adjacent first comb tooth structures 30 is too large, it cannot fully hook hair, hair, or other long, thin objects on the roller brush 20, reducing the efficiency of untangling and preventing hair tangling. Therefore, by setting 1mm≤S1≤20mm, not only can the risk of other objects getting stuck between adjacent first comb tooth structures 30 be reduced, thus improving the hair-untangling effect, but it can also hook hair, hair, or other long, thin objects on the roller brush 20 more comprehensively, improving the efficiency of untangling and preventing hair tangling. Similarly, the distance S1 between any two adjacent second comb tooth structures 40 can also achieve the above effect when it is in the range of 1mm≤S1≤20mm, which will not be elaborated further here.

[0102] Optionally, the spacing S1 can be 1mm, 5mm, 10mm, 15mm or 20mm.

[0103] In some embodiments, the distance between adjacent first comb tooth structure 30 and second comb tooth structure 40 is S2, where 1mm≤S2≤10mm.

[0104] If the spacing between adjacent first comb tooth structures 30 and second comb tooth structures 40 is too small, other objects may get stuck between them, reducing their ability to untangle hair. If the spacing between adjacent first comb tooth structures 30 and second comb tooth structures 40 is too large, they cannot fully hook onto hair, fine hairs, or other long, thin objects on the roller brush 20, reducing the efficiency of untangling and preventing hair tangling. Therefore, by setting 1mm≤S2≤20mm, not only can the risk of other objects getting stuck between adjacent first comb tooth structures 30 and second comb tooth structures 40 be reduced, thus improving the untangling effect, but it can also more comprehensively hook onto hair, fine hairs, and other long, thin objects on the roller brush 20, improving the efficiency of untangling and preventing hair tangling.

[0105] Optionally, the spacing S2 is 1mm, 5mm or 10mm.

[0106] In some embodiments, the sum of the number of the first comb structure 30 and the second comb structure 40 is n, where 20≤n≤60.

[0107] If the number of first comb teeth 30 and second comb teeth 40 is too small, the comb teeth 30 will not be able to fully hook onto long, thin objects such as hair on the roller brush 20. If the number of first comb teeth 30 and second comb teeth 40 is too large, the volume of the first comb teeth 30 and second comb teeth 40 will be small or the spacing between adjacent comb teeth will be small within a limited space. This will reduce the reliability of the first comb teeth 30 and second comb teeth 40 in hooking onto long, thin objects such as hair on the roller brush 20, and make it easy for other objects to get stuck between adjacent comb teeth. Therefore, by setting the sum n of the number of first comb teeth 30 and second comb teeth 40 to be in the range of 20 ≤ n ≤ 60, it is possible to fully hook onto long, thin objects such as hair on the roller brush 20, while also improving the reliability of the first comb teeth 30 and second comb teeth 40 in hooking onto long, thin objects such as hair on the roller brush 20, and making it less likely for other objects to get stuck between adjacent comb teeth.

[0108] Optionally, the sum n of the number of the first comb structure 30 and the second comb structure 40 can be 20, 30, 40, 50 or 60.

[0109] In the embodiments of this application, the number of the first comb tooth structure 30 and the second comb tooth structure 40 is the same. In other embodiments, the number may be different, which is not limited here.

[0110] See Figure 12 and Figure 13 In some embodiments, along the first direction A, the width of each first comb tooth 50 is M1, wherein 0.5mm≤M1≤4mm.

[0111] When the width of the first comb tooth 50 is too small, it will be difficult to hook long, thin objects such as hair on the roller brush 20. When the width of the first comb tooth 50 is too wide, it will easily hook other objects, such as sunflower seed shells or small parts, reducing the hair-untangling function of the first comb tooth 50 and increasing the difficulty of cleaning for the user. Therefore, by setting the width M1 of the first comb tooth 50 to a range of 0.5mm≤M1≤4mm, the reliability of hooking long, thin objects such as hair on the roller brush 20 can be improved, while the risk of the first comb tooth 50 hooking other objects can be reduced. This improves the hair-untangling effect of the first comb tooth 50 and reduces the difficulty of cleaning the first comb tooth 50 for the user.

[0112] Optionally, the width M1 of the first comb tooth portion 50 is 0.5mm, 1mm, 2mm, 3mm or 4mm.

[0113] See Figure 10 and Figure 11In some embodiments, along the second direction B, the height of the first comb tooth portion 50 is H1, wherein 0.5mm≤H1≤4mm.

[0114] When the height of the first comb teeth 50 is too small, it will be difficult to hook long, thin objects such as hair on the roller brush 20. When the height of the first comb teeth 50 is too high, it will be difficult for other objects to dislodge when passing over the first comb teeth 50, thus reducing the hair-untangling function of the first comb teeth 50 and increasing the difficulty of cleaning for the user. Therefore, by setting the height M1 of the first comb teeth 50 to a range of 0.5mm≤H1≤4mm, the reliability of hooking long, thin objects such as hair on the roller brush 20 can be improved, while making it easier for objects other than long, thin objects such as hair to dislodge, thereby improving the hair-untangling effect of the first comb teeth 50 and reducing the difficulty of cleaning the first comb teeth 50 for the user.

[0115] Optionally, the height H1 of the first comb tooth portion 50 is 0.5mm, 1mm, 2mm, 3mm or 4mm.

[0116] In other embodiments, along the first direction A, the width of each first comb tooth portion 50 is M1, and along the second direction B, the height of the first comb tooth portion 50 is H1, wherein 0.5mm≤M1≤4mm and 0.5mm≤H1≤4mm.

[0117] In some embodiments, the width M1 of the first comb portion 50 gradually decreases as it moves away from the second comb portion 60 along the second direction B.

[0118] As the first comb tooth 50 moves away from the second comb tooth 60 along the second direction B, the width M1 of the first comb tooth 50 gradually decreases, which makes the first comb tooth 50 form a sharp end at the end away from the second comb tooth 60. This makes it easier for long and thin objects such as hair to enter, thereby improving the reliability of the first comb tooth 50 in hooking long and thin objects such as hair on the roller brush 20.

[0119] See Figure 4 , Figure 8 and Figure 9 In some embodiments, the thickness of the first comb tooth portion 50 is D1 along the sixth direction F, which is perpendicular to the first direction A on the horizontal plane, and the thickness D1 of the first comb tooth portion 50 gradually decreases along the second direction away from the second comb tooth portion 60.

[0120] Specifically, the sixth direction F is actually parallel to the direction of travel of the cleaning equipment.

[0121] As the first comb portion 50 moves away from the second comb portion 60 along the second direction B, the thickness D1 of the first comb portion 50 gradually decreases. This also causes the first comb portion 50 to form a sharp end at the end away from the second comb portion 60, which facilitates the entry of long and thin objects such as hair and fuzz, thereby improving the reliability of the first comb portion 50 in hooking long and thin objects such as hair and fuzz on the roller brush 20.

[0122] Specifically, in the embodiments of this application, when D1 gradually decreases as it moves away from the second comb tooth portion 60 along the second direction B, the first comb tooth portion 50 includes a first tooth surface 51 and a second tooth surface 52 along the sixth direction F. The first tooth surface 51 extends along the second direction B and moves away from the second comb tooth portion 60 along the second direction B, while the second tooth surface 52 gradually approaches the first tooth surface 51.

[0123] This configuration ensures that the thickness D1 of the first comb tooth portion 50 gradually decreases, while also allowing the first tooth surface 51 to come into close contact with the outer peripheral surface of the roller brush 20. This allows long, thin objects such as hair on the roller brush 20 to smoothly enter the inner side of the first comb tooth portion 50, further improving the reliability of the first comb tooth portion 50 in hooking long, thin objects such as hair on the roller brush 20.

[0124] In other embodiments, the width M1 of the first comb portion 50 gradually decreases as it moves away from the second comb portion 60 along the second direction B, and the thickness of the first comb portion 50 is D1 along the sixth direction F which is perpendicular to the first direction A on the horizontal plane. The thickness D1 of the first comb portion 50 gradually decreases as it moves away from the second comb portion 60 along the second direction B.

[0125] See Figure 12 and Figure 13 In some embodiments, along the first direction A, the width of each second comb tooth 60 is M2, wherein 0.5mm≤M2≤4mm.

[0126] When the width of the second comb tooth 60 is too small, it will be difficult to hook long, thin objects such as hair on the roller brush 20. When the width of the first comb tooth 50 is too wide, that is, when the length protruding from the first comb tooth 50 is too long, the first comb tooth 50 will be difficult to dislodge when other objects pass over the second comb tooth 60. This reduces the hair-untangling function of the second comb tooth 60 and increases the difficulty of cleaning for the user. Therefore, by setting the width M2 of the second comb tooth 60 to a range of 0.5mm≤M2≤4mm, the reliability of hooking long, thin objects such as hair on the roller brush 20 can be improved, while making it easier for objects other than long, thin objects such as hair to dislodge. This improves the hair-untangling effect of the second comb tooth 60 and reduces the difficulty of cleaning the second comb tooth 60 for the user.

[0127] Optionally, the width M2 of the second comb tooth portion 60 is 0.5mm, 1mm, 2mm, 3mm or 4mm.

[0128] See Figure 10 and Figure 11 In some embodiments, along the second direction B, the height of the second comb tooth portion 60 is H2, wherein 0.5mm≤H2≤4mm.

[0129] When the height of the second comb teeth 60 is too small, it will be difficult to hook long, thin objects such as hair on the roller brush 20. When the height of the second comb teeth 60 is too large, it will easily hook other objects, such as sunflower seed shells or small parts, reducing its hair-untangling function and increasing the difficulty of cleaning for the user. Therefore, by setting the height H2 of the second comb teeth 60 to a range of 0.5mm≤H2≤4mm, the reliability of hooking long, thin objects such as hair on the roller brush 20 can be improved, while the risk of the second comb teeth 60 hooking other objects can be reduced. This improves the hair-untangling effect of the second comb teeth 60 and reduces the difficulty of cleaning the second comb teeth 60 for the user.

[0130] Optionally, the height H2 of the second comb tooth portion 60 is 0.5mm, 1mm, 2mm, 3mm or 4mm.

[0131] In other embodiments, along the first direction A, the width of each second comb tooth 60 is M2, and along the second direction B, the height of the second comb tooth 60 is H2, wherein 0.5mm≤M2≤4mm and 0.5mm≤H2≤4mm.

[0132] In some embodiments, the height H1 of the second comb portion 60 gradually decreases as it moves away from the first comb portion 50 along the first direction A.

[0133] As the second comb portion 60 moves away from the first comb portion 50 along the first direction A, the height H2 of the second comb portion 60 gradually decreases, causing the second comb portion 60 to form a sharp end at the end away from the first comb portion 50. This facilitates the entry of long and thin objects such as hair and fuzz, thereby improving the reliability of the second comb portion 60 in hooking long and thin objects such as hair and fuzz on the roller brush 20.

[0134] See Figure 4 , Figure 8 and Figure 9 In some embodiments, the thickness of the second comb tooth portion 60 is D2 along the sixth direction F, which is perpendicular to the first direction A on the horizontal plane. As the second comb tooth portion 60 moves away from the first comb tooth portion 50 along the first direction A, the thickness D2 of the second comb tooth portion 60 gradually decreases.

[0135] As the second comb portion 60 moves away from the first comb tooth portion 50 along the first direction A, the thickness D2 of the second comb tooth portion 60 gradually decreases. This also causes the second comb tooth portion 60 to form a sharp end at the end away from the first comb tooth portion 50, which facilitates the entry of long and thin objects such as hair and fuzz, thereby improving the reliability of the second comb tooth portion 60 in hooking long and thin objects such as hair and fuzz on the roller brush 20.

[0136] In other embodiments, the height H1 of the second comb portion 60 gradually decreases as it moves away from the first comb portion 50 along the first direction A, and the thickness of the second comb portion 60 is D2 along the fourth direction D that is perpendicular to the first direction A on the horizontal plane. The thickness D2 of the second comb portion 60 gradually decreases as it moves away from the first comb portion 50 along the first direction A.

[0137] Based on the same inventive concept, this application also provides a cleaning device, including a cleaning body and a roller brush mechanism 100 as described in any of the above embodiments. The roller brush mechanism 100 is mounted on the cleaning body.

[0138] The cleaning unit may include a shell, base, wheels, controller, vacuuming mechanism, and integrated box.

[0139] The aforementioned cleaning device, by simultaneously arranging multiple first comb tooth structures 30 and multiple second comb tooth structures 40 near the suction port 12, with each first comb tooth structure 30 and second comb tooth structure 40 forming an L-shaped comb tooth, wherein each first comb tooth portion 50 can hook hair, hair, or other long and thin objects along the circumference of the roller brush 20 during the rotation of the roller brush 20, thereby untangling hair, hair, or other long and thin objects wrapped around the roller brush 20, and further preventing hair, hair, or other long and thin objects from wrapping around the roller brush 20. The second comb tooth portion 60 of the first comb tooth structure 30 along the circumference of the roller brush 20... The first comb tooth 50 protrudes in three directions C on one side, while the second comb tooth 60 of the second comb tooth structure 40 protrudes in a fourth direction D opposite to the third direction C on one side of the first comb tooth 50. Therefore, when long and thin objects such as hair move axially on the roller brush 20, the second comb tooth 60 in both directions can hook onto the long and thin objects such as hair moving in different axial directions, so as to untangle the long and thin objects such as hair from the roller brush 20 during the rotation of the roller brush 20, and further prevent the long and thin objects such as hair from getting tangled in the roller brush 20. Therefore, by setting multiple first comb tooth structures 30 and second comb tooth structures 40, long and thin objects such as hair can be hooked in both the circumferential and axial directions of the roller brush 20, which improves the effect of preventing long and thin objects such as hair from getting tangled in the roller brush 20, improves the cleaning efficiency of the roller brush 20, and reduces the risk of damage to the roller brush 20 and the internal structure of the machine.

[0140] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0141] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A roller brush mechanism, characterized in that, include: The mounting body (10) has a roller brush chamber (11) and a suction port (12) communicating with the roller brush chamber (11). A roller brush (20) is rotatably mounted in the roller brush cavity (11); and Multiple first comb tooth structures (30) and multiple second comb tooth structures (40) are all located on the mounting body (10) and close to the dust suction port (12). All the first comb tooth structures (30) and all the second comb tooth structures (40) are spaced apart from each other along a first direction parallel to the axial direction of the roller brush (20). Each of the first comb tooth structure (30) and each of the second comb tooth structures (40) includes a first comb tooth portion (50) and a second comb tooth portion (60). The first comb tooth portion (50) extends along a second direction, which is parallel to the tangential direction of the outer peripheral surface of the roller brush (20). The second comb tooth portion (60) of the first comb tooth structure (30) protrudes along a third direction to one side of the first comb tooth portion (50), and the second comb tooth portion (60) of the second comb tooth structure (40) protrudes along a fourth direction to one side of the first comb tooth portion (50). The third direction is opposite to the fourth direction, and both the third direction and the fourth direction are parallel to the first direction.

2. The roller brush mechanism according to claim 1, characterized in that, The outer peripheral surface of the roller brush (20) has a brush body (21), the brush body (21) includes a first brush body part (211) and a second brush body part (212). The first brush body part (211) extends spirally from one end of the roller brush (20) to the middle region, and the second brush body part (212) extends spirally from the other end of the roller brush to the middle region. The rotation direction of the first brush body part (211) is opposite to that of the second brush body part (212), so that the axial thrust generated by the first brush body part (211) and the second brush body part (212) during the rotation of the roller brush (20) is opposite. All of the first comb tooth structures (30) are provided corresponding to the first brush body part (211); all of the second comb tooth structures (40) are provided corresponding to the second brush body part (212); the third direction is opposite to the axial thrust direction generated by the first brush body part (211), and the fourth direction is opposite to the axial thrust direction generated by the second brush body part (212).

3. The roller brush mechanism according to claim 1, characterized in that, The second direction is opposite to the rotation direction of the roller brush (20).

4. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along a fifth direction parallel to the radial direction of the roller brush (20), both the first comb structure (30) and the second comb structure (40) have a preset gap with the outer peripheral surface of the roller brush (20).

5. The roller brush mechanism according to claim 4, characterized in that, The preset gap is X, where 0.1mm ≤ X ≤ 2mm.

6. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the first direction, the distance between any two adjacent first comb tooth structures (30) and the distance between any two adjacent second comb tooth structures (40) are both S1, where 1mm≤S1≤20mm.

7. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, The distance between adjacent first comb tooth structure (30) and second comb tooth structure (40) is S2, 1mm≤S2≤10mm.

8. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, The sum of the number of the first comb structure (30) and the second comb structure (40) is n, where 20≤n≤60.

9. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the first direction, the width of each first comb tooth (50) is M1; along the second direction, the height of each first comb tooth (50) is H1. Where 0.5mm≤M1≤4mm; and / or 0.5mm≤H1≤4mm.

10. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the first direction, the width of each first comb tooth (50) is M1; along the sixth direction perpendicular to the first direction on the horizontal plane, the thickness of each first comb tooth (50) is D1. As M1 gradually decreases away from the second comb tooth portion (60) along the second direction; and / or As D1 gradually decreases away from the second comb tooth portion (60) along the second direction.

11. The roller brush mechanism according to claim 10, characterized in that, As D1 gradually decreases away from the second comb tooth portion (60) along the second direction, the first comb tooth portion (50) includes a first tooth surface (51) and a second tooth surface (52) along the sixth direction. The first tooth surface (51) extends along the second direction and moves away from the second comb tooth portion (60) along the second direction, while the second tooth surface (52) gradually approaches the first tooth surface (51).

12. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the first direction, the width of each second comb tooth (60) is M2; along the second direction, the height of each second comb tooth (60) is H2; Where 0.5mm≤M2≤4mm; and / or 0.5mm≤H2≤4mm.

13. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the second direction, the height of each second comb tooth (60) is H2; along the sixth direction perpendicular to the first direction on the horizontal plane, the thickness of each second comb tooth (60) is D2. Along the first direction away from the first comb tooth portion (50), H2 gradually decreases; and / or As D2 moves away from the first comb tooth portion (50) along the first direction, it gradually decreases.

14. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, The mounting body (10) includes a housing (13) and a roller brush cover (14). The roller brush cover (14) is fitted with the housing (13) and surrounds to form the roller brush cavity (11). The dust suction port (12) is provided on the roller brush cover (14). All the first comb tooth structures (30) and all the second comb tooth structures (40) are provided on the roller brush cover (14).

15. The roller brush mechanism according to any one of claims 1 to 3, characterized in that, Along the cleaning direction of the roller brush mechanism (100), all the first comb tooth structures (30) and all the second comb tooth structures (40) are arranged in front of the roller brush (20).

16. A cleaning device, characterized in that, It includes a cleaning body and a roller brush mechanism (100) as described in any one of claims 1 to 15, wherein the roller brush mechanism (100) is mounted on the cleaning body.

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