Rolling brush and rolling brush device thereof

Abstract

The utility model relates to the field of rolling brushes, in particular to a rolling brush and a rolling brush device thereof, which comprises a rolling brush bin and a dust collection channel, and a suction inlet communicated with the rolling brush bin is arranged at the tail end of the dust collection channel. The two rolling brushes are installed in the rolling brush bin, a suction inlet allowing dirt cleaned by the rolling brushes to pass through is formed in the middle of the rolling brush bin, the fixed ends of the two rolling brushes are movably assembled on the two sides of the rolling brush bin respectively, and the free ends of the rolling brushes are arranged in a suspended mode and face the suction inlet; an included angle A is formed between the central axis of the rolling brush and the central axis of the dust collection channel; and the extending cleaning parts on the two rolling brushes extend to the corresponding gaps and are staggered with each other. The whole rolling brush can more easily push garbage to the suction inlet in the rotating process, and the cleaning efficiency is improved. The extending cleaning part which extends out can penetrate into and stir hair and dirt which are possibly gathered in gaps of the rolling brush, and the hair and the dirt are effectively prevented from being accumulated in areas which are difficult to touch.

Description

Technical Field

[0001] This utility model relates to the field of roller brushes, and more particularly to a roller brush and its roller brush device. Background Technology

[0002] In recent years, with the improvement of people's living standards, home cleaning has gradually entered the era of automation and intelligence. The cleaning equipment that has emerged 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] Typically, cleaning equipment includes a main body and a roller brush, which is rotatably mounted inside the main body under the drive of a drive mechanism. During operation, the roller brush collects dust, hair, and other debris from the surface to be cleaned, thus completing the cleaning process. However, hair easily gets tangled on the outer surface of the roller brush, making cleaning difficult. While blades can be installed on the main body to cut the hair tangled on the roller brush surface, the actual cleaning effect is not ideal because the blades are difficult to cut through the fluffy and soft hair.

[0004] Existing technology uses a single roller brush with a free end pointing towards the suction port, allowing hair to be sucked in and preventing it from getting tangled on the brush. However, existing roller brushes have the following drawbacks: the brush structure and suction port are both vertically positioned, meaning the negative pressure only applies to the brush tip. Hair located far from the free end of the brush lacks sufficient suction, hindering its entry. Additionally, a gap exists between the brush and the suction port. Since existing roller brushes do not have an extension cleaning section for this gap, cleaning blind spots exist, resulting in inadequate cleaning. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a roller brush and its device. During rotation, the roller brush more easily pushes debris towards the suction inlet, improving cleaning efficiency. When hair on the roller brush surface needs to be sucked into the suction channel, its extended cleaning section can simultaneously reach deep into and agitate hair and dirt that may accumulate in the gaps between the roller brushes, effectively preventing their accumulation in these hard-to-reach areas.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a roller brush, including a roller body, the roller body including a fixed end and a free end in the length direction; a plurality of first cleaning members, the first cleaning members being disposed on the outer peripheral wall of the roller body, the cleaning members being used to clean dirt on the surface to be cleaned and guide the dirt to the free end of the roller body; the portion of the first cleaning member near the free end extends out of the plane of the free end and forms an extended cleaning portion.

[0007] Further, each first cleaning member includes a plurality of bristles spirally arranged circumferentially around the roller body. The first cleaning member includes opposite first and second ends. The first end of the first cleaning member is connected to the outer peripheral wall of the roller body, and the second end of the first cleaning member is away from the outer peripheral wall of the roller body.

[0008] Further, in the direction from the first end to the second end of the first cleaning member, it is inclined towards the free end of the roller body.

[0009] Further, it further includes a plurality of second cleaning members. The second cleaning members are spirally arranged circumferentially around the roller body and are arranged at intervals with the first cleaning members.

[0010] Further, the end of the second end of the first cleaning member is higher than the top end of the second cleaning member.

[0011] Further, the second cleaning member is a flexible rubber brush. A让位连接部 (retaining connection part) is provided at the end of the flexible rubber brush close to the free end of the roller body. The included angle A between the extension line of the end face of the retaining connection part and the axis of the roller body is 0° < A ≤ 90°.

[0012] Further, the number of the second cleaning members is 3 or more, and at the same time, the number of the first cleaning members is more than 1.

[0013] Further, the roller body is in the shape of a cylinder, a cone, a frustum of a cone, a flat cone, a spindle, or a flat spindle.

[0014] In addition, the present application further provides a roller brush device, including a roller brush chamber and a dust suction channel. An air suction port communicating with the roller brush chamber is provided at the end of the dust suction channel; and two roller brushes are installed in the roller brush chamber. An air suction port for the dirt cleaned by the roller brushes to pass through is provided in the middle of the roller brush chamber. The fixed ends of the two roller brushes are respectively movably assembled on both sides of the roller brush chamber, and the free ends of the roller brushes are suspended and face the air suction port; the central axis of the roller brush and the central axis of the dust suction channel have an included angle A, and the value range of A is 90° < A < 180°; a gap with the air suction port is reserved between the free ends of the two roller brushes, and the extended cleaning parts on the two roller brushes both extend to the corresponding gap and intersect with each other.

[0015] The beneficial effects of this invention are as follows: Because the roller brush is tilted towards the suction channel (and the angle between the roller brush and the suction channel is kept obtuse), the negative pressure generated when the suction device is working can act more effectively on the surface of the roller brush, thereby enhancing the adsorption force for dust, hair, and other debris. This design allows the roller brush to push debris towards the suction inlet more easily during rotation, improving cleaning efficiency. When hair on the surface of the roller brush needs to be sucked into the suction channel, because the roller brush is tilted towards the suction channel, the hair needs to make an obtuse angle bend. This design, compared to right-angle or acute-angle bends, helps the hair enter the suction channel smoothly and reduces hair tangling on the roller brush.

[0016] The structure of the first cleaning component near its free end extends beyond the plane of the free end, forming a special extended cleaning section. This design allows the extended cleaning section to penetrate and agitate hair and dirt that may accumulate in the gaps between the roller brushes during rotation, effectively preventing their buildup in these hard-to-reach areas. Simultaneously, the extended cleaning sections on both roller brushes are carefully designed to extend to their corresponding gaps and intersect. This staggered layout means that during roller brush rotation, regardless of where one extended cleaning section reaches in a gap, it overlaps or covers the opposite extended cleaning section, ensuring that every corner in the gap is effectively cleaned. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the roller brush structure.

[0018] Figure 2 This is a schematic diagram of the roller brush device.

[0019] Figure 3 This is a structural diagram of the cleaning equipment.

[0020] Figure 4 Cross-sectional structural diagram of a roller brush

[0021] Reference numerals: 10. Roller brush; 10A. First roller brush; 10B. Second roller brush; 1. Roller body; 11. First cleaning component; 111. First end; 112. Second end; 113. Extended cleaning section; 12. Second cleaning component; 121. Clearance connection section; 13. Fixed end; 14. Free end; 15. Roller brush chamber; 16. Suction channel; 17. Suction inlet; 18. Gap; 2. Cleaning equipment; 3. Walking mechanism. Detailed Implementation

[0022] Please see Figure 1-2As shown, this utility model relates to a roller brush 10, which includes a roller body 1 and a cleaning component. When the roller body 1 rotates relative to the surface to be cleaned, the cleaning component can rotate together with the roller body 1 relative to the surface to be cleaned, thereby achieving the cleaning of dirt on the surface to be cleaned. The surface to be cleaned can be a surface inside a building; or, the surface to be cleaned can be the surface of other objects that need to be cleaned, such as a wall or a bed.

[0023] In some embodiments, the cleaning component may include a second cleaning component 12, specifically a flexible rubber brush. The flexible rubber brush not only meets the cleaning needs of the roller brush 10 for the surface to be cleaned, but also prevents rigid contact between the flexible rubber brush and the surface to be cleaned, thus preventing damage to the flexible rubber brush or the surface to be cleaned, thereby ensuring the stability of the roller brush 10 during operation.

[0024] Please see Figure 1 As shown, in some embodiments, the cleaning component may include a first cleaning component 11, i.e., multiple bristles, each bristle including a first end 111 and a second end 112, the first end 111 of the bristle being connected to the outer peripheral wall of the roller body 1. It should be noted that the material of the bristles includes, but is not limited to, nylon or PPT. In still some embodiments, the cleaning component may include both a rubber brush and bristles, with the rubber brush and bristles spaced apart.

[0025] Please see Figure 1 As shown, further, the first cleaning member 11 is inclined towards the free end 14 of the roller body 1 from its first end 111 to its second end 112. That is, the second end 112 of the bristles is inclined toward the free end 14 of the roller body 1, which facilitates the guidance of dirt to the free end 14 of the roller body 1 when the roller brush 10 cleans dirt, and also reduces the time that dirt stays on the roller brush 10, thereby improving the cleaning efficiency of the roller brush 10.

[0026] Please see Figure 1-2 As shown, when the roller brush 10 rotates on the cleaning device 2, the bristles (first cleaning element 11) are the first to contact the ground or the surface to be cleaned due to its rotation direction. This means that the bristles are the first part to come into contact with dirt such as dust and hair on the ground. The design of the bristles enables them to effectively capture and pick up hair and fine dust on the ground. However, due to the softness and toughness of the hair, it may sometimes get tangled in the bristles, especially when there are many bristles and they are tightly packed. When the bristles capture hair and try to guide it to the free end 14 of the roller body 1, if the hair is too long or too tightly tangled, it may move downwards along the bristles and may even enter the root of the bristles, increasing the difficulty of cleaning.

[0027] At this time, the top end of the flexible rubber brush (the second cleaning member 12) located behind the bristles (since the end of the second end 112 of the first cleaning member 111 is higher than the top end of the second cleaning member 12) plays a crucial blocking role. Since the top end of the bristles is higher than the top end of the flexible rubber brush, the flexible rubber brush can, to a certain extent, prevent the hair from moving further downward and reduce the possibility of the hair being completely wound around the root of the bristles. With this design, after the hair is captured by the bristles, it is more likely to be guided to the free end 14 of the roller body 1 and finally sucked into the dust suction channel 16, rather than being wound around the bristles. This not only improves the cleaning efficiency but also reduces the cleaning workload of the roller brush 10.

[0028] Referring to Figure 4 , further, a让位连接部121 is provided at the end of the flexible rubber brush close to the free end 14 of the roller body 1, and the included angle A between the extension line of the end face of the让位连接部121 and the axis of the roller body 1 is an acute angle. When the flexible rubber brush contacts the ground or the surface to be cleaned during rotation, if the design at its free end 14 is greater than a right angle or close to a right angle (obtuse angle), then slender dirt such as hair is easily caught on these corners, thus increasing the difficulty of winding and cleaning. By designing the included angle A between the extension line of the end face of the让位连接部121 at the free end 14 and the axis of the roller body 1 to be 0° < A ≤ 90°, the probability of hair getting caught can be greatly reduced, making the hair more easily and smoothly guided to the dust suction channel 16.

[0029] Further elaborating, in some embodiments, when the cleaning member includes a rubber brush, the cleaning member can be non-removably mounted on the outer peripheral wall of the roller body 1 by means such as bonding, welding or interference fit, so as to prevent the cleaning member from falling off when the roller body 1 rotates relative to the surface to be cleaned and improve the working stability of the roller brush 10; or the cleaning member can also be removably mounted on the outer peripheral wall of the roller body 1 by means such as snap connection or threaded connection, so as to facilitate disassembly and replacement when the cleaning member is damaged. When the cleaning member includes bristles, the cleaning member can be mounted on the outer peripheral wall of the roller body 1 by means of hair implantation.

[0030] It should be noted that the term "让位连接部" in the original text seems to be a specific technical term in Chinese, and in the translation, a literal translation is used first. If there is a more accurate English equivalent in the relevant technical field, it can be adjusted accordingly.Therefore, in this embodiment, a roller brush 10 includes a roller body 1, which has a fixed end 13 and a free end 14 in the length direction; a plurality of first cleaning members 11, which are disposed on the outer peripheral wall of the roller body 1. The cleaning members are used to clean dirt on the surface to be cleaned and guide the dirt to the free end 14 of the roller body 1; the portion of the structure of the first cleaning member 11 near the free end 14 extends out of the plane of the free end 14 and forms an extended cleaning portion 113. In the roller brush 10 of this application embodiment, the portion of the structure of the first cleaning member 11 near the free end 14 extends out of the plane of the free end 14 to form an extended cleaning portion 113; thereby, the extended cleaning portion 113 can agitate the dirt near the free end 14 of the roller body 1, prevent the dirt from accumulating continuously, ensure the collection effect of the dirt by the suction device, and thus improve the cleaning ability of the roller brush 10.

[0031] Alternatively, the roller 1 can be cylindrical; the cylindrical roller 1, due to its uniform diameter, can maintain good balance and stability during rotation, reducing vibration and noise, and improving the overall operational stability of the cleaning equipment 2. The cleaning components (such as bristles or flexible rubber brushes) on the cylindrical roller 1 can be evenly distributed, ensuring comprehensive and uniform cleaning of the surface to be cleaned during rotation, thus improving cleaning efficiency.

[0032] When roller 1 is designed in a conical or frustum shape with its free end 14 facing the suction port, roller 1 can form a certain tilt angle during rotation. This design helps to enhance the suction force of the suction port on the surface of the roller 1, making it easier for dirt to be sucked into the suction channel 16. The tilted roller 1 design requires hair to turn through an obtuse angle when it rotates to the free end 14, which helps to reduce hair entanglement on the roller 1 and reduce the maintenance difficulty of the cleaning equipment 2. During rotation, the conical or frustum shaped roller 1, due to its gradually changing diameter, can better conform to the unevenness of the surface to be cleaned, thereby collecting debris more comprehensively and improving the cleaning effect.

[0033] When roller 1 is designed as a flat-headed cone, the flat-head design means that the free end of the roller is flat, rather than sharp. This design is safer in some applications because it reduces the risk of potential collision and damage with the surface to be cleaned or surrounding objects. When roller 1 is designed as a spindle shape, with roller 1 being smaller at both ends and larger in the middle, this design helps to enhance the cleaning effect. When roller 1 is designed as a flat-headed spindle, it combines the advantages of the flat-headed design and the spindle shape, providing a safe and flat free end while maintaining the airflow disturbance characteristics of the spindle shape.

[0034] In this embodiment, two sets of first cleaning components 11 and four sets of second cleaning components 12 are preferably provided. The four flexible rubber brushes ensure that the roller brush covers and contacts a large area of ​​the ground or surface to be cleaned during rotation, thereby effectively capturing and removing dirt. At the same time, the flexible material and smooth surface of the flexible rubber brushes help reduce the entanglement of fine dirt such as hair, reducing the difficulty of maintenance after cleaning. The two sets of bristles can perform more thorough cleaning on some stubborn stains or small crevices, improving the cleaning effect.

[0035] Please see Figure 3 As shown, another embodiment also provides a cleaning device 2, which mainly includes a suction device and a roller brush 10 assembly connected to the suction device. The suction device is used to generate negative pressure to remove dust and other debris entering from the roller brush 10 assembly. The roller brush 10 assembly includes a roller brush chamber 15 and a roller brush 10 disposed within the roller brush chamber 15. The roller brush chamber 15 has a suction port facing the surface to be cleaned. The roller brush 10 is used to contact the surface to be cleaned and rotate on the surface to be cleaned, so that as the cleaning device 2 travels along the surface to be cleaned, it collects dust, hair, and other debris from the surface to be cleaned toward the suction port. The roller brush chamber 15 is connected to the suction device. By drawing negative pressure into the roller brush chamber 15 through the suction device, and cooperating with the rotation of the roller brush 10, the debris at the suction port can be drawn into a container connected to the roller brush chamber 15, such as a dust collection chamber or dust collection device. Exemplarily, the suction device can be a fan built into or external to the main body of the cleaning device 2. The roller brush 10 is located in the roller brush chamber 15, and the roller brush 10 extends at least partially outside the suction port, thereby contacting the surface to be cleaned to remove debris.

[0036] In one embodiment, the cleaning device 2 includes a traveling mechanism 3 located at its bottom. The accompanying drawing illustrates a case where the traveling mechanism 3 consists of wheels. The traveling mechanism includes a pair of coaxially arranged wheels, each located at one end of the length of the suction port, with its rotation axis perpendicular to the traveling direction of the cleaning device 2. In other embodiments, the traveling mechanism 3 may also be a traveling disc extending towards the surface to be cleaned to make contact with it. By rotating the traveling disc, movement of the disc on the surface to be cleaned can be achieved.

[0037] This embodiment provides a roller brush 10 device, which includes a roller brush bin 15 and a dust suction channel 16. An air suction port 17 communicating with the roller brush bin 15 is provided at the end of the dust suction channel 16; and two roller brushes 10 are installed in the roller brush bin 15. An air suction port 17 for allowing dirt cleaned by the roller brush 10 to pass through is provided in the middle of the roller brush bin 15. The fixed ends 13 of the two roller brushes 10 are respectively movably assembled on both sides of the roller brush 10 bin, and the free ends 14 of the roller brushes 10 are suspended and face the air suction port 17; the central axis of the roller brush 10 forms an angle A with the central axis of the dust suction channel 16, and the value range of A is 90° < A < 180°; a gap 18 with the air suction port 17 is reserved between the free ends 14 of the two roller brushes 10, and the extended cleaning parts 113 on the two roller brushes 10 both extend to the corresponding gap 18 and intersect with each other.

[0038] It can be understood that the free end 14 of the roller brush 10 is suspended and faces the air suction port 17. It can be that the free end 14 of the roller brush 10 is arranged close to the air suction port 17, it can be that the free end 14 of the roller brush 10 is closer to the air suction port 17 than the fixed end 13 of the roller brush 10, it can be that the free end 14 of the roller brush 10 faces the air suction port 17, or it can be that the distance between the free end 14 of the roller brush 10 and the air suction port 17 is within a preset distance range.

[0039] Refer to Figure 2 [[ID=⑧]]As further shown, there are two roller brushes 10 in the roller brush bin 15. The two roller brushes 10 are respectively installed at opposite ends of the roller brush bin 15, and their free ends 14 are spaced apart and face each other. Specifically, the roller brush 10 includes a first roller brush 10A and a second roller brush 10B. Both the first roller brush 10A and the second roller brush 10B include a fixed end 13 and a free end 14. The fixed end 13 of the first roller brush 10A and the fixed end 13 of the second roller brush 10B are respectively rotatably arranged at opposite ends of the roller brush bin 15, and the central axis of the first roller brush 10A forms an angle A1 with the central axis C-C direction of the dust suction channel 16, where 90° < A1 < 180°, and A1 is preferably 120°. And the central axis of the second roller brush 10B forms an angle A2 with the central axis C-C direction of the dust suction channel

[0040] 16, 90° < A2 < 180°, and A2 is preferably 120°.

[0040] It is emphasized that the central axis of the roller brush 10 forms an angle A with the central axis C-C direction of the dust suction channel 16, and the value range of A is 90° < A < 180°; in the embodiment, the central axis of the roller brush 10 forms an angle A with the central axis C-C direction of the dust suction channel 16, and in this embodiment, A is preferably 120°. The resulting effect is that the roller brush 10 is inclined towards the dust suction channel 16 (that is, the two roller brushes 10 form a Y-shaped arrangement with the dust suction channel 16). The function of this design is as follows:

[0041] Because the roller brush 10 is tilted towards the suction channel 16 (maintaining an obtuse angle between the roller brush 10 and the suction channel 16), the negative pressure generated when the suction device is working can act more effectively on the surface of the roller brush 10, thereby enhancing the adsorption of dust, hair, and other debris. This design allows the roller brush 10 to more easily push debris towards the suction inlet 17 during rotation, improving cleaning efficiency. When hair on the surface of the roller brush 10 needs to be sucked into the suction channel 16, because the roller brush 10 is tilted towards the suction channel 16 (at the same angle as above), the hair needs to make an obtuse angle bend. This design, compared to right-angle or acute-angle bends, helps the hair enter the suction channel 16 more smoothly, reducing hair tangling on the roller brush 10.

[0042] Because the roller brush 10 is tilted towards the suction channel 16, it can better conform to the surface to be cleaned during rotation, thus collecting debris more comprehensively. Simultaneously, due to enhanced suction and reduced hair entanglement, the cleaning device 2 can clean the surface more thoroughly, improving cleaning effectiveness. Reducing hair entanglement on the roller brush 10 decreases wear and tear, extending its lifespan. This translates to lower maintenance costs and longer usage time for the user.

[0043] Furthermore, the free ends 14 of the first roller brush 10A and the second roller brush 10B both face the suction port 17, and there is a gap 18 between the first roller brush 10A and the second roller brush 10B along the axial direction of the roller brush 10, which is opposite to the suction port 17. In this way, the hair on the first roller brush 10A and the second roller brush 10B can be moved to the gap 18 opposite to the suction port 17, and under the action of vacuum suction, enter the suction port 17 opposite to the gap 18 and be collected.

[0044] Meanwhile, since there might be a gap 18 between the two roller brushes 10, there is a possibility that collected hair might accumulate in this gap 18 and not be sucked out. There might also be cleaning dead zones, as cleaning dead zones (gap 18) remain even as you move forward. Therefore, to solve the problem of cleaning dead zones while maintaining suction power, the structure of the first cleaning component 11 near the free end 14 extends beyond the plane of the free end 14, forming a special extended cleaning section 113. This design allows the extended cleaning section 113 of the roller brush 10 to penetrate and agitate hair and dirt that might accumulate in the gap 18 of the roller brush 10 during rotation, effectively preventing their accumulation in these hard-to-reach areas. Furthermore, the extended cleaning sections 113 on both roller brushes 10 are carefully designed to extend to the corresponding gaps 18 and intersect with each other. This staggered layout means that during the rotation of the roller brush 10, whenever the extended cleaning section 113 of the roller brush 10 reaches the gap 18, it can overlap or cover the opposite extended cleaning section 113 to a certain extent, thus ensuring that every corner of the gap 18 is effectively cleaned. In practical applications, to ensure maximum cleaning effect, there must be at least one intersection point of the bristles on both sides. This means that when the roller brush 10 rotates to any position, there will be at least one area where the bristles on both sides work together, effectively filling any possible cleaning gaps and completely eliminating cleaning dead corners. This design not only solves the problem of cleaning dead corners but also further improves the cleaning efficiency of dirt through enhanced physical contact and agitation.

[0045] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A roller brush, characterized in that: It includes a roller body, and the roller body includes opposite fixed ends and a free end in the length direction; a plurality of first cleaning members, the first cleaning members are arranged on the outer peripheral wall of the roller body, and the cleaning members are used to clean the dirt on the to-be-cleaned surface and guide the dirt to the free end of the roller body; a part of the structure of the first cleaning member near the free end extends out of the plane where the free end is located and forms an extended cleaning part.

2. A roller brush according to claim 1, characterized in that: Each first cleaning member includes a plurality of bristles spirally arranged circumferentially around the roller body. The first cleaning member includes opposite first and second ends. The first end of the first cleaning member is connected to the outer peripheral wall of the roller body, and the second end of the first cleaning member is away from the outer peripheral wall of the roller body.

3. A roller brush according to claim 2, characterized in that: The first cleaning member is inclined in the direction from its first end to the second end towards the free end of the roller body.

4. A roller brush according to claim 2, characterized in that: It further includes a plurality of second cleaning members, and the second cleaning members are spirally arranged circumferentially around the roller body and are arranged at intervals with the first cleaning members.

5. A roller brush according to claim 2, characterized in that: The end of the second end of the first cleaning member is higher than the top end of the second cleaning member.

6. A roller brush according to claim 4, characterized in that: The second cleaning member is a flexible rubber brush. A让位连接部 (retaining connection part) is provided at the end of the flexible rubber brush near the free end of the roller body. The included angle A between the extension line of the end face of the retaining connection part and the axis of the roller body is 0° < A ≤ 90°.

7. A roller brush according to claim 6, characterized in that: The number of the second cleaning members is 3 or more, and at the same time, the number of the first cleaning members is more than 8. A roller brush according to claim 6, characterized in that: ​ 9. A roller brush device, characterized in that: ​

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