A rolling brush assembly with an anti-tangling structure

Abstract

The utility model relates to a kind of roll brush assembly of anti-entangling hair structure, comprising: drum body, the brush hair component of detachable being provided on the drum body, the outer surface of the drum body is spirally provided with several protrusions, and every protrusion is opened with limit slot along its spiral direction, the brush hair component includes several support strips that can be attached to the surface of protrusion, and the inner side of support strip is provided with the limit strip that can be matched with limit slot, the support strip presents spiral shape.The utility model realizes the effect of quickly replacing brush hair component by setting detachable brush hair component on roll brush body, reduces replacement cost.

Description

Technical Field

[0001] This utility model relates to the technical field of roller brush components, specifically a roller brush component with an anti-tangling structure. Background Technology

[0002] In the fields of household cleaning and commercial cleaning, the roller brush assembly is the core component of cleaning equipment such as vacuum cleaners and robot vacuums. It mainly achieves the cleaning function by having bristles evenly distributed on the outer circumference of the roller come into contact with and rub against the surface to be cleaned (such as the floor or carpet), rolling hair, fibers, dust and other debris into the dust collection device inside the equipment.

[0003] Currently, most mainstream roller brush assemblies on the market adopt a structural design of "integrated molding of roller and bristle assembly". Among them, the bristles are the key part to achieve the function of dust and debris cleaning. In order to ensure the stability of the bristles during the cleaning process, the bristles are usually fixed directly to the outer circumferential surface of the roller through processes such as bristle implantation, injection molding or bonding, so that the roller and bristle assembly form an inseparable whole functional unit.

[0004] As a consumable part that comes into direct contact with surfaces such as floors and carpets, the brush bristles are prone to wear and tear after a period of use, leading to a decrease in cleaning ability or even loss of cleaning function. Because the roller and bristle assembly are an integral, non-separable structure, when the bristles are damaged, users cannot replace the bristle assembly alone; they must replace the entire roller brush, significantly increasing the user's subsequent operating costs. Utility Model Content

[0005] The purpose of this utility model is to provide a roller brush assembly with an anti-tangling structure. By providing a detachable bristle assembly on the roller brush body, the bristle assembly can be quickly replaced, reducing replacement costs.

[0006] To address the problems of existing technologies, this utility model provides a roller brush assembly with an anti-tangling structure, characterized in that it includes: a roller body, on which a detachable bristle assembly is provided, the outer surface of the roller body is spirally provided with a plurality of protrusions, and each protrusion has a limiting groove along its spiral direction, the bristle assembly includes a plurality of support strips that can fit against the surface of the protrusions, and the inner side of the support strips is provided with limiting strips that can cooperate with the limiting grooves, the support strips being spiral in shape.

[0007] Preferably, a plurality of bristle bundles are implanted on the support strip along its spiral direction, and the number of bristles implanted in each bristle bundle is 125±10, and the diameter of the bristle bundle is 4-5mm.

[0008] Preferably, the roller body, support strip, and limiting strip are made of plastic.

[0009] Preferably, one end of the roller body is fitted with a limiting sleeve that can prevent the brush assembly from sliding out from the side of the roller body.

[0010] Preferably, one end of the roller body is provided with an external thread, and the inner ring of the limiting sleeve is provided with an internal thread, the internal thread engaging with the external thread.

[0011] Preferably, one end of the roller body is provided with a plurality of screw holes, and the limiting sleeve is provided with a through hole corresponding to the screw holes. A fixing bolt is inserted into the through hole, and one end of the fixing bolt is screwed into the screw hole.

[0012] Preferably, a synchronous pulley is provided at the end of the roller body away from the limiting sleeve.

[0013] The advantages of this utility model compared to the prior art are:

[0014] This application achieves quick assembly and disassembly of the bristle assembly by setting protrusions along a spiral trajectory on the surface of the roller body and creating limiting grooves on the protrusions. The limiting strip is located on the side of the support strip near the protrusion, and its cross-sectional shape matches the groove structure of the limiting groove, ensuring a stable fit after assembly. When the bristle assembly needs to be replaced, the limiting strip can be detached from the limiting groove simply by axial pulling, significantly shortening maintenance time and reducing replacement costs. To further improve structural stability, a limiting sleeve is fixedly installed at one end of the roller body, effectively preventing the bristle assembly from sliding to the side of the roller body during operation. Furthermore, the spiral layout design of the protrusions creates a spiral arrangement of the bristles, generating axial force during the rotation of the roller body. This forces the attached hair to move along the spiral direction and detach from the bristle surface, significantly reducing the probability of hair entanglement and improving cleaning efficiency and equipment lifespan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a roller brush assembly with an anti-tangling structure according to this utility model.

[0016] Figure 2 This is a first exploded structural diagram of an embodiment of a roller brush assembly with an anti-tangling structure according to the present invention.

[0017] Figure 3 This is a second exploded structural diagram of a first embodiment of a roller brush assembly with an anti-tangling structure according to the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the roller body of a roller brush assembly with an anti-tangling structure according to one embodiment of the present invention.

[0019] Figure 5This is a three-dimensional structural diagram of the brush assembly according to Embodiment 1 of the present invention, which describes a roller brush assembly with an anti-tangling structure.

[0020] Figure 6 This is a three-dimensional structural schematic diagram of a second embodiment of the anti-tangling brush assembly of this utility model.

[0021] Figure 7 This is an exploded structural diagram of a second embodiment of a roller brush assembly with an anti-tangling structure according to this utility model.

[0022] The following are the labels in the diagram: 1. Roller body; 11. Protrusion; 12. Limiting groove; 13. External thread; 14. Screw hole; 2. Brush assembly; 21. Support bar; 22. Brush bundle; 23. Limiting bar; 3. Synchronous pulley; 4. Limiting sleeve; 41. Internal thread; 42. Through hole; 5. Fixing bolt. Detailed Implementation

[0023] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0024] Reference Figures 1-7 As shown, this utility model provides a roller brush assembly with an anti-tangling structure, including: a roller body 1, on which a detachable bristle assembly 2 is provided. The outer surface of the roller body 1 is spirally provided with several protrusions 11. The roller body 1 serves as the basic supporting structure of the roller brush assembly, providing an installation reference and support for the bristle assembly 2. The spirally provided protrusions 11 on its outer surface provide an assembly track for the bristle assembly 2, guiding the arrangement direction of the bristle assembly 2 through a spiral path. Each protrusion 11 has a limiting groove 12 along its spiral direction. The bristle assembly 2 includes several support strips 21 that can fit against the surface of the protrusions 11, and the inner side of each support strip 21 is provided with a limiting strip 23 that can cooperate with the limiting groove 12. The support strips 21 are spiral-shaped. The limiting groove 12 is a key structure for achieving the detachable connection of the bristle assembly 2. Through cooperation with the limiting strip 23, it restricts the radial and circumferential displacement of the bristle assembly 2, ensuring that it does not loosen or shift during operation. The bristle assembly 2 is the functional component that directly performs the cleaning operation, and it consists of several support strips 21. The support strips 21 are designed in a spiral shape to fit against the surface of the protrusion 11, which not only ensures a tight fit with the roller body 1, but also allows the bristles to be distributed along a spiral trajectory, laying the foundation for the anti-tangling function. The limiting strip 23 on the inner side of the support strip 21 cooperates with the limiting groove 12. The interlocking structure of the two allows the bristle assembly 2 to be quickly disassembled and assembled axially, facilitating later maintenance and replacement.

[0025] During assembly, align the limiting strip 23 of the bristle assembly 2 with the limiting groove 12 of the roller body 1, and push it in axially to ensure that the support strip 21 and the protrusion 11 fit tightly together, thus completing the assembly. In operation, the roller body 1 drives the bristle assembly 2 to rotate synchronously. When the spirally arranged bristles come into contact with dirt, they not only clean the surface through their own elasticity but also generate axial force due to the spiral structure. When long, thin dirt such as hair gets entangled on the bristles, this axial force drives the hair to gradually move towards both ends of the roller along the spiral direction and eventually detach from the bristles, effectively reducing entanglement. Simultaneously, the cooperation between the limiting groove 12 and the limiting strip 23 ensures that the bristle assembly 2 does not shift under high-speed rotation and contact resistance, guaranteeing the stability of the cleaning operation. If the bristle assembly 2 needs to be replaced, simply pull it out in the reverse axial direction for quick replacement, significantly improving maintenance efficiency.

[0026] Several bristle bundles 22 are implanted along their spiral direction on the support strip 21, with each bristle bundle 22 containing 125±10 bristles. The diameter of each bristle bundle 22 is 4-5mm. The support strip 21 serves as the carrier for the bristle bundles 22, with several bristle bundles 22 evenly implanted along its spiral trajectory. Each bristle bundle 22 is implanted using a bristle implantation process, with the number of bristles implanted in a single bundle controlled within the range of 125±10. This configuration ensures that the bristle bundle 22 has sufficient structural strength to cope with the frictional resistance during cleaning operations, while also ensuring sufficient contact with the surface to be cleaned through a reasonable density distribution, thereby improving the dirt capture capacity.

[0027] The roller body 1, support strip 21, and limiting strip 23 are all made of plastic. Plastic possesses suitable mechanical strength and toughness, meeting the structural stability requirements of the roller brush assembly under high-speed rotation. For the roller body 1, the lightweight nature of plastic reduces the drive load. The choice of plastic material for the support strip 21 and limiting strip 23 balances rigidity and wear resistance, reducing wear on the mating surfaces and maintaining a stable fitting gap during repeated insertion and removal from the limiting groove 12 and long-term contact. Furthermore, the chemical resistance of plastic allows it to withstand the effects of environmental factors such as cleaning agents, extending the service life of the components.

[0028] One end of the roller body 1 is fitted with a limiting sleeve 4 that can prevent the brush assembly 2 from sliding off the side of the roller body 1. The limiting sleeve 4 is an annular sleeve structure, and its core function is to form an axial limiting barrier to prevent the brush assembly 2 from sliding off the side of the roller body 1 during operation.

[0029] Example 1: Reference Figure 1-4 As shown, one end of the roller body 1 is provided with an external thread 13, and the inner ring of the limiting sleeve 4 is provided with an internal thread 41, which meshes with the external thread 13.

[0030] Due to the self-locking property of the thread, the limiting sleeve 4 can maintain a stable axial position under the conditions of high-speed rotation and vibration of the roller brush, providing a continuous and reliable end blocking effect for the bristle assembly 2, effectively preventing it from sliding out from the side of the roller body 1; on the other hand, the threaded connection allows the limiting sleeve 4 to be easily disassembled and assembled. When it is necessary to disassemble the bristle assembly 2 as a whole, the limiting sleeve 4 can be rotated to separate it from the roller body 1, and then the bristle assembly 2 can be pulled out from the roller body 1.

[0031] Example 2: Reference Figure 6-7 As shown, one end of the roller body 1 is provided with a plurality of screw holes 14, and the limiting sleeve 4 is provided with through holes 42 corresponding to the screw holes 14. A fixing bolt 5 is inserted into the through hole 42, and one end of the fixing bolt 5 is screwed into the screw hole 14. The inner diameter of the through hole 42 is slightly larger than the nominal diameter of the fixing bolt 5 to ensure that the bolt can pass through smoothly.

[0032] During assembly, the limiting sleeve 4 is fitted onto the end of the roller body 1, aligning the through hole 42 with the screw hole 14. Then, the fixing bolt 5 is passed through the through hole 42 and screwed into the screw hole 14. The axial clamping force of the bolt forms a rigid connection between the limiting sleeve 4 and the roller body 1. The advantage of this connection method is that the mechanical locking action of the bolt provides extremely strong resistance to loosening. Even under long-term high-frequency vibration of the roller brush, the positional stability of the limiting sleeve 4 is guaranteed, effectively preventing the bristle assembly 2 from sliding out from the side.

[0033] A synchronous pulley 3 is provided at the end of the roller body 1 furthest from the limiting sleeve 4. As the core component for power transmission, the synchronous pulley 3 plays a crucial role in transmitting the torque of the drive device to the roller body 1. The synchronous pulley 3 is typically made of the same plastic material as the roller body 1 or a high-strength engineering plastic. During operation, the motor drives the synchronous pulley 3 to rotate via a transmission belt, thereby driving the roller body 1 and the brush assembly 2 mounted on it to rotate synchronously, achieving power transmission for the cleaning operation.

[0034] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A roller brush assembly with an anti-tangling structure, characterized in that, include: A roller body (1) is provided with a detachable bristle assembly (2). The outer surface of the roller body (1) is spirally provided with a number of protrusions (11), and each protrusion (11) has a limiting groove (12) along its spiral direction. The bristle assembly (2) includes a number of support strips (21) that can fit against the surface of the protrusions (11), and the inner side of the support strips (21) is provided with a limiting strip (23) that can cooperate with the limiting groove (12). The support strips (21) are spiral in shape. One end of the roller body (1) is fitted with a limiting sleeve (4) that can prevent the bristle assembly (2) from sliding out from the side of the roller body (1). One end of the roller body (1) is provided with an external thread (13), and the inner ring of the limiting sleeve (4) is provided with an internal thread (41). The internal thread (41) meshes with the external thread (13).

2. The roller brush assembly with an anti-tangling structure according to claim 1, characterized in that, Several bristle bundles (22) are implanted on the support bar (21) along its spiral direction, and each bristle bundle (22) has 125±10 bristles implanted, and the diameter of the bristle bundle (22) is 4-5mm.

3. The roller brush assembly with an anti-tangling structure according to claim 1, characterized in that, The roller body (1), support bar (21) and limiting bar (23) are made of plastic.

4. The roller brush assembly with an anti-tangling structure according to claim 1, characterized in that, The roller body (1) has a plurality of screw holes (14) at one end. The limiting sleeve (4) has a through hole (42) corresponding to the screw holes (14). A fixing bolt (5) is inserted into the through hole (42), and one end of the fixing bolt (5) is screwed into the screw hole (14).

5. The roller brush assembly with an anti-tangling structure according to claim 1, characterized in that, A synchronous wheel (3) is provided at the end of the roller body (1) away from the limiting sleeve (4).

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