Support assembly for cleaning equipment, cleaning assembly and cleaning equipment

Abstract

The utility model relates to the technical field of cleaning equipment, and provides a support assembly for cleaning equipment, a cleaning assembly and the cleaning equipment. The support assembly comprises a support body, a first roller rotationally connected to the support body and at least one second roller, wherein the first roller and / or the second roller comprise / comprises a roller body and a friction structure arranged on the peripheral face of the roller body. The friction structure directly increases the contact friction force between the roller shaft and the cleaning piece through the design of convex ribs, grooves or an elastic coating layer, and the slipping phenomenon in the humid environment is effectively restrained. Through the directional traction effect of the friction structure, the speed fluctuation of the cleaning part during rotation is remarkably reduced, uniform-speed movement in a wet state is ensured, and the ground cleaning coverage rate and uniformity are improved. The anti-skid design of the surface of the roller body reduces relative sliding abrasion of the cleaning piece and the roller shaft, and prolongs service life of the cleaning piece and the roller shaft. The utility model further provides a cleaning assembly comprising the support assembly and cleaning equipment, and the cleaning assembly and the cleaning equipment have the advantages of being stable in transmission, high in environmental adaptability, low in maintenance cost and the like.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a bracket assembly, cleaning assembly and cleaning equipment for cleaning equipment. Background Technology

[0002] With the development of science and technology and the improvement of living standards, household cleaning equipment has become increasingly popular, reducing the burden of housework. Examples include robotic vacuum cleaners, robotic floor scrubbers, and robotic vacuum and mop combos.

[0003] In existing cleaning equipment, some models of cleaning components are supported by two rollers, forming a near-track-like cloth structure. One of the rollers is the driving roller, directly driven by a drive mechanism to rotate, providing the active traction force for the movement of the cleaning component and serving as the power source for its rotation. The other roller is the driven roller, rotating under the tension of the cleaning component, primarily serving a supporting and guiding function. However, because the cleaning component is often wet during operation, the coefficient of friction between its contact surface and the rollers decreases significantly. This condition easily leads to localized or periodic slippage of the cleaning component relative to the rollers. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a bracket assembly, a cleaning assembly, and a cleaning device for cleaning equipment, so as to reduce the slippage of the cleaning components.

[0005] To achieve the above and other related objectives, this utility model provides a bracket assembly for cleaning equipment, comprising:

[0006] Support body;

[0007] The first roller is rotatably connected to the support body;

[0008] The second roller is rotatably connected to the support body, and at least one second roller is provided;

[0009] The first roller and the second roller are arranged parallel to each other, and at least a portion of the outer peripheral surface of the first roller and the second roller is used to be covered and adhered to by the cleaning component of the cleaning device. The first roller and / or the second roller includes a roller body and a friction structure disposed on the outer peripheral surface of the roller body.

[0010] In an optional embodiment of the present invention, the friction structure includes at least one protrusion and / or a groove.

[0011] In an optional embodiment of this utility model, the friction structure includes multiple ribs, which are arranged in a ring array around the axis of the roller body.

[0012] In an optional embodiment of this utility model, the rib extends continuously along the axial direction of the roller body.

[0013] In an optional embodiment of this utility model, the width of the rib gradually decreases from the bottom to the top, the bottom being the side of the rib closer to the axis, and the top being the side of the rib away from the axis.

[0014] In an optional embodiment of this utility model, the rib includes a first type of rib and / or a second type of rib, wherein the first type of rib and the second type of rib have different cross-sectional shapes but the same protrusion height.

[0015] In an optional embodiment of this utility model, the cross-section of the first type of rib and / or the second type of rib is triangular.

[0016] In an optional embodiment of this utility model, the cross-section of the second type of rib is an obtuse triangle, the obtuse angle of the obtuse triangle corresponds to the top of the rib, and the other two angles of the obtuse triangle are not equal.

[0017] In an optional embodiment of this utility model, the cross-section of the first type of rib is an isosceles trapezoid or an isosceles triangle, and the lower base of the isosceles trapezoid or the base of the isosceles triangle corresponds to the bottom of the rib.

[0018] In an optional embodiment of this utility model, the rib is made of an anti-slip material or

[0019] The top surface of the rib is coated with an anti-slip material.

[0020] In an optional embodiment of this invention, the rib is made of an elastic material.

[0021] In an optional embodiment of this utility model, 8-16 protruding ribs are provided in the circumferential direction of the axis.

[0022] In an optional embodiment of this utility model, the ratio of the protrusion height of the rib to the radius of the roller body is 0.1-0.15.

[0023] In an optional embodiment of this utility model, the outer peripheral surface of the roller body includes a basic surface area and a connecting surface area, the connecting surface area is used to set the friction structure, and the area of ​​the basic surface area is larger than the area of ​​the connecting surface area.

[0024] In an optional embodiment of this utility model, the ratio of the arc length of the connecting surface area in the circumferential direction of the axis to the arc length of the basic surface area in the circumferential direction of the axis is 0.3-0.5.

[0025] In an optional embodiment of the present invention, the roller body includes a shaft and a sleeve, the sleeve is sleeved on the shaft, and the friction structure is disposed on the outer peripheral surface of the sleeve.

[0026] In an optional embodiment of this utility model, the same roller body includes two sleeves, which are coaxially sleeved on the same shaft.

[0027] In an optional embodiment of this utility model, the friction structure is integrally formed with the sleeve.

[0028] This utility model also provides a cleaning component, including a cleaning element and the aforementioned support assembly, wherein the cleaning element is wound around and covers the friction structure on the outer peripheral surface of the support assembly, and a first roller and at least one second roller are used to tension the cleaning element.

[0029] This utility model also provides a cleaning device, including the aforementioned support assembly.

[0030] The technical advantages of this invention are as follows: The friction structure design directly increases the friction between the roller and the cleaning component, effectively suppressing slippage caused by a wet environment. Through the directional traction of the friction structure, the rotational speed fluctuation of the cleaning component is significantly reduced, ensuring that it can maintain uniform movement even in a wet state, thereby improving cleaning coverage and reducing blind spots. The anti-slip effect of the friction structure on the roller body surface reduces relative sliding wear between the cleaning component and the roller body, extending the service life of both. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the support assembly in one embodiment of the present invention;

[0033] Figure 2 This is a three-dimensional structural diagram of the roller body in one embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the disassembled structure of the roller body in one embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the sleeve structure of the roller body in one embodiment of the present invention;

[0036] Figure 5This is a schematic diagram of the end face structure of the roller body in one embodiment of the present invention;

[0037] Figure 6 for Figure 5 Enlarged view of part A;

[0038] Figure 7 for Figure 5 Enlarged view of part B;

[0039] Figure 8 This is a three-dimensional structural diagram of the emotional component in one embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the end face structure of the cleaning component in one embodiment of the present invention.

[0041] Explanation of reference numerals in the attached drawings: 1. First roller; 2. Second roller; 3. Support body; 4. Cleaning component; 10. Roller body; 11. Shaft; 12. Sleeve; 13. Basic surface area; 14. Connecting surface area; 20. Rib; 21. Bottom; 22. Top; 23. First type of rib; 24. Second type of rib. Detailed Implementation

[0042] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] With the rapid development of science and technology and the continuous improvement of residents' living standards, intelligent household cleaning equipment (such as robotic vacuum cleaners, robotic floor scrubbers, and robotic vacuum and mop combos) has gradually become an important tool in modern families. These devices significantly reduce the burden of housework through automation technology. One of their core functions is to wipe or sweep the floor using rotating cleaning components (such as a mop or brush), thereby achieving efficient cleaning. To optimize the movement stability and coverage of the cleaning components, some advanced models of cleaning equipment adopt a dual-roller support structure, where the cleaning components are supported by both a driving roller and a driven roller, forming a closed-loop transmission system similar to a track.

[0045] In this structure, the driving roller is directly driven by a motor or drive mechanism, responsible for providing traction for the cyclical movement of the cleaning components; the driven roller, on the other hand, rotates passively due to the tension of the cleaning components themselves, primarily serving a supporting and guiding function. However, because the cleaning components are often wet during operation, the coefficient of friction between the components and the rollers decreases significantly. This condition easily leads to localized or periodic slippage of the cleaning components relative to the rollers, manifesting as decreased transmission efficiency, fluctuations in movement speed, and uneven traction force transmission. Insufficient transmission efficiency not only weakens the effective force of the cleaning components on the ground but may also reduce cleaning coverage due to unstable movement trajectories, even creating blind spots. Furthermore, prolonged slippage accelerates the wear of the cleaning components and rollers, further affecting the equipment's service life and reliability.

[0046] Therefore, how to achieve efficient and stable power transmission between the cleaning components and the rollers in a humid environment remains a key technical challenge that urgently needs to be overcome in the field of intelligent cleaning equipment.

[0047] To achieve the above objectives and other related objectives, such as Figure 1-7 As shown, this utility model provides a support assembly for cleaning equipment. The support assembly is part of the cleaning unit in the cleaning equipment. The support assembly includes a support body 3, a first roller 1, and a second roller 2. The first roller 1 can be an active roller. The support body 3 serves as a support frame, fixing and supporting the first roller 1, the second roller 2, and other transmission components to ensure the stability of the overall structure.

[0048] The first roller 1 can be an active roller. The first roller 1 is rotatably connected to the support body 3 through a bearing or a rotating shaft and is directly driven by a drive motor to provide active traction for the cyclic movement of the cleaning component 4 (such as a tracked rag).

[0049] The second roller 2 is rotatably connected to the support body 3. At least one second roller 2 is provided. The second roller 2 can be a driven roller or a tension roller. The driven roller is passively rotated under the tension of the cleaning component 4 to assist in transmitting power. The tension roller maintains the cleaning component 4 in a taut state through position adjustment (such as spring or slide rail) to prevent loosening.

[0050] The first roller 1 and the second roller 2 are arranged parallel to each other. The parallel axes ensure that the cleaning component 4 maintains a uniform tension distribution in the covering section between the first roller 1 and the second roller 2, avoiding unilateral stress concentration or slippage caused by the skewness of the first roller 1 and the second roller 2. Simultaneously, the parallel structure strictly limits the movement trajectory of the cleaning component 4 to the same plane, preventing the risk of derailment due to lateral deviation. At least a portion of the outer circumferential surface of the first roller 1 and the second roller 2 is used to cover and adhere the cleaning component 4. The outer circumferential surface of the first roller 1 (drive roller) is in close contact with the inner surface of the cleaning component, directly transmitting rotational power to the cleaning component 4 through friction, driving it to move along a closed path. The covering section of the second roller 2 (driven roller / tension roller) balances the dynamic tension fluctuations of the cleaning component 4 caused by changes in workload through passive rotation or elastic adjustment. For example, when the cleaning component 4 experiences localized stretching due to dirt resistance, the tension roller can maintain overall tension through displacement compensation.

[0051] The first roller 1 and / or the second roller 2 include a roller body 10 and a friction structure disposed on the outer peripheral surface of the roller body 10. The friction structure is used to directly contact the cleaning component 4 and enhance friction to suppress slippage. The friction structure can specifically be a textured surface, an elastic coating layer, a spiral pattern, etc. By directly increasing the friction with the cleaning component 4 through the friction structure, slippage can be effectively suppressed even in humid environments, ensuring efficient power transmission. The friction structure can be flexibly designed according to the material of the cleaning component 4 (fiber cloth, silicone pad, etc.) and the working conditions (dry or wet state) to adapt to various cleaning scenarios. For example, high-hardness anti-slip particles are used for hard cleaning brushes, and an elastic coating layer is used for soft cloths.

[0052] In an optional embodiment of this utility model, such as Figure 2 , 3 As shown, the roller body 10 consists of a shaft 11 (core support) and a sleeve 12 (outer wrapping). The sleeve 12 is detachably or fixedly fitted onto the outside of the shaft 11, and the friction structure is directly disposed on the outer surface of the sleeve 12. The sleeve 12 is made of a high-friction material (such as a rubber sleeve) and is fixed to the metal shaft 11 by clips or bolts. When the sleeve 12 wears, only the sleeve 12 needs to be replaced, without replacing the entire roller body 10, reducing maintenance costs. Replacing only the sleeve 12 can restore the friction performance and avoid scrapping the entire roller. An anti-rotation structure is added between the shaft 11 and the sleeve 12 to prevent the sleeve 12 from slipping relative to the shaft 11. The specific anti-rotation structure can be a key and keyway, spline connection, interference fit, polygonal fit, etc.

[0053] The shaft 11 can be made of high-density metal (such as steel), which increases the contact pressure between the cleaning part 4 and the ground by increasing the overall weight. It is especially suitable for scenarios that require enhanced scraping force or rolling effect (such as oil stain removal). The sleeve 12 can be made of elastic material.

[0054] The shaft 11 and sleeve 12 can also be integrally molded, with high-friction material directly coated onto the surface of the metal shaft through injection molding, compression molding, or other processes, simplifying the manufacturing process. Alternatively, the shaft 11 and sleeve 12 can be made from the same material and molded in one piece using compression molding, die casting, or other processes, forming a single, mechanically connected roller body 10. This eliminates the assembly steps (such as keyway machining and sleeve installation) required for split structures, reducing production costs and eliminating the risk of wear or loosening associated with split structures, thus improving reliability.

[0055] In an optional embodiment of this utility model, such as Figure 1 , 2 As shown, two independent sleeves 12 are coaxially fitted on the same shaft 11. A gap can be maintained between the two sleeves 12 for drainage or to reduce the adhesion of the cleaning parts 4. If one side of the sleeve 12 wears, the other side can still maintain some function, thus extending the overall service life.

[0056] In an optional embodiment of this utility model, the friction structure can be a component separately mounted on the sleeve 12 (such as an anti-slip strip or insert), or integrally formed with the sleeve 12 through processes such as injection molding or compression molding. An independent friction structure allows for localized reinforcement (such as setting anti-slip strips only in the contact area), reducing costs. The integral molding process avoids the risk of inserts falling off, improving durability. Integral molding reduces assembly steps, making it suitable for mass production.

[0057] In an optional embodiment of this invention, the friction structure, through the design of protrusions and / or grooves, alters the physical morphology of the contact interface between the roller and the cleaning component 4, thereby enhancing friction and transmission stability. The protrusions are outward-projecting structures on the roller surface and can be designed as granular, striped, blocky, or other geometric shapes. The protrusions are directly embedded in the cleaning component 4 (such as cloth fibers), reducing relative slippage through mechanical engagement. Multiple protrusions are evenly distributed to prevent excessive local pressure from causing deformation or wear of the cleaning component 4. Striped ridges can guide the movement of the cleaning component 4 in a directional manner, preventing deviation or wrinkling. The grooves are inward-recessed structures on the roller surface and can be designed as transverse grooves, longitudinal grooves, spiral grooves, or grid-like recesses. The grooves can drain liquid promptly, preventing contaminants from reducing the coefficient of friction. The edges of the grooves undergo slight deformation when in contact with the cleaning component 4, increasing the effective friction area. Grooves in specific directions (such as spiral grooves) can constrain the lateral displacement of the cleaning component 4, improving the accuracy of the motion trajectory.

[0058] The roller surface can also be designed with alternating ridges and adjacent grooves, resembling a "sawtooth" shape, combining the functions of interlocking and drainage. It can also be designed in sections, for example, with raised granules at both ends of the roller shaft for anti-slip, and a spiral groove in the middle to assist drainage.

[0059] In an optional embodiment of this utility model, such as Figure 2-7As shown, the friction structure consists of multiple raised ribs 20, which are evenly distributed in a ring array along the circumference of the roller body 10, centered on the axis of the roller body 10. The raised ribs 20 are arranged at equal intervals around the roller axis, forming a continuous or intermittent ring-shaped anti-slip band. A single raised rib 20 can be strip-shaped, trapezoidal, semi-circular, or have a cross-sectional shape, and its extension direction can be parallel to the roller axis or at a certain angle (such as a spiral). The height of the raised ribs 20 and the spacing between adjacent raised ribs 20 can be adjusted according to the material of the cleaning component 4 (such as a soft cloth or hard bristles) to balance the frictional force and the durability of the cleaning component 4. When the roller body 10 rotates, the raised ribs 20 embed into the fibers of the wet cloth, forming multi-point engagement to prevent slippage. The gaps between the raised ribs 20 allow wastewater to drain along the roller surface, preventing the liquid film from reducing friction. The ring array of raised ribs 20 disperses the contact pressure between the roller axis and the cleaning component 4 to multiple points, avoiding tearing of the cleaning component 4 or wear of the roller surface caused by concentrated pressure at a single point.

[0060] In an optional embodiment of this utility model, such as Figure 2-7 As shown, the ribs 20 of the friction structure extend continuously along the axial direction (i.e., the length direction of the roller body 10) of the roller body 10, forming strip-shaped protrusions that roughly run through the entire length of the roller surface. A single rib 20 extends from one end of the roller to the other without interruption or segmentation, forming a structure similar to a "track" or "guide bar". Multiple axial ribs 20 can be evenly distributed around the circumference of the roller to form a parallel stripe-like surface, or densely arranged locally as needed. The axially continuous ribs 20 are aligned with the moving direction of the cleaning component 4, providing continuous linear friction force to ensure efficient power transmission, especially suitable for scenarios requiring unidirectional stable transmission (such as linear reciprocating cleaning). The continuous ribs 20 form a "guide track", constraining the cleaning component 4 (such as a rag or brush) to move along a preset path, avoiding lateral slippage or twisting caused by equipment turning or uneven ground. The axially continuous ribs 20 ensure that the cleaning component 4 bears uniform pressure throughout the entire length of the roller surface, reducing local wear and improving the overall adhesion of the cleaning component 4 to the ground (such as preventing the edges of the rag from curling up).

[0061] In an optional embodiment of this utility model, such as Figure 5-7As shown, the width of the rib 20 gradually decreases from the bottom 21 (the side closer to the center of the roller shaft) to the top 22 (the side farther from the center of the roller shaft), forming a cross-sectional shape similar to a "trapezoidal" or "conical". Specifically, the cross-section of the rib 20 gradually narrows from the root to the top 22, with the width of the top 22 being smaller than the width of the bottom 21. This type of rib 20 can be used alone or arranged in combination with other types of ribs 20 / grooves. When the wet cloth comes into contact with the rib 20, the wide cross-section at the bottom 21 provides stable support, while the narrow cross-section at the top 22 embeds the cloth fibers, creating a "pressing down and biting up" anti-slip effect. The wide cross-section at the bottom 21 provides stable basic support, dispersing the pressure of the cleaning component 4 on the roller surface and reducing local deformation. The narrow cross-section at the top 22 concentrates the embedding of the cleaning component 4 (such as cloth fibers or bristles), increasing pressure through "point contact" and improving the biting depth and anti-slip effect. The top 22 can be designed with a smooth transition (such as a semi-circle) to reduce hard friction with the cleaning component 4, avoid fiber breakage or surface scratches, and extend the life of the cleaning component 4. The gradient width design allows the contact pressure between the cleaning component 4 and the rib 20 to transition smoothly from wide to narrow, reducing the risk of tearing caused by sudden stress changes. The V-shaped gap between the ribs 20 (formed by the wide bottom 21 and the narrow top 22) naturally has a guiding effect, allowing liquid to be quickly discharged to both sides of the roller along the gap.

[0062] In an optional embodiment of this utility model, such as Figure 5 As shown, the raised ribs 20 are divided into two types: first type ribs 23 and second type ribs 24. Both have the same raised height but different cross-sectional shapes. The first type rib 23 has a symmetrical geometric cross-section (such as an isosceles trapezoid or isosceles triangle), wider at the bottom 21 and narrower at the top 22, emphasizing uniform support and pressure distribution. The second type rib 24 has an asymmetrical or special cross-section (such as an obtuse triangle or a semicircle), achieving directional friction or functional enhancement through shape design. The two types of raised ribs 20 can be arranged alternately, in sections, or mixed on the same roller surface to form a multifunctional friction structure. Through the differentiated cross-sectional design of the first and second types of raised ribs 24, functional zoning, working condition adaptation, and performance enhancement are achieved while maintaining a uniform raised height. The synergistic effect of the two types of raised ribs 20 can cover diverse cleaning needs, especially suitable for scenarios with high requirements for transmission stability, environmental adaptability, and equipment lifespan.

[0063] In an optional embodiment of this utility model, such as Figure 5-7 As shown, the cross-section of the first type of rib 23 and / or the second type of rib 24 is triangular. The vertices of the triangle can generate higher local pressure with a smaller contact area, thereby embedding into the microstructure of the cleaning component 4 (such as cloth fibers or brush bristles) to form a mechanical engagement. Utilizing the "wedge-in" characteristic of the triangle, the rotational driving force is converted into a linear traction force, improving transmission efficiency.

[0064] In an optional embodiment of this utility model, such as Figure 7 As shown, the cross-section of the second type of rib 24 is an obtuse triangle. The obtuse angle (an angle greater than 90°) of the obtuse triangle is located at the top 22 of the rib 20 (on the side away from the center of the roller shaft), and the vertex of the obtuse angle is rounded or sharp. The other two angles of the obtuse triangle are unequal, forming an asymmetrical cross-section, with one acute angle side facing the direction of rotation of the roller shaft and the other acute angle side facing away from the direction of rotation. The obtuse angle apex 22 contacts the cleaning component 4 (such as a rag or brush bristles), reducing local pressure and lowering the risk of wear.

[0065] In an optional embodiment of this utility model, such as Figure 6 As shown, the cross-section of the first type of rib 23 is an isosceles trapezoid or an isosceles triangle, with the lower base of the isosceles trapezoid or the base of the isosceles triangle corresponding to the bottom 21 of the rib 20. The lower base of the isosceles trapezoid (the side closer to the center of the roller shaft) is wider, providing stable support; the upper base (the side farther from the center of the roller shaft) is narrower, contacting the cleaning component 4. The two sides of the isosceles trapezoid are symmetrical, ensuring uniform pressure distribution. The wide lower base of the isosceles trapezoid disperses the pressure of the cleaning component 4 to a larger contact area, reducing the risk of local deformation of the roller surface, making it particularly suitable for high-load scenarios.

[0066] The isosceles triangle has a wide base and a pointed apex. The base (near the center of the roller) is wide and symmetrical, while the apex (away from the center of the roller) is sharp or rounded. The two legs of the isosceles triangle are of equal length, maintaining balanced force on the roller surface. The wide base of the isosceles triangle resists radial pressure, and the symmetrical design prevents the roller from shifting due to force on one side.

[0067] In an optional embodiment of this utility model, the anti-slip performance of the raised rib 20 is further enhanced through material selection or surface treatment. Specifically, the raised rib 20 is made entirely of a high-friction coefficient material (such as rubber, silicone, polyurethane, etc.), which enhances the contact effect with the cleaning component 4 through the elasticity and frictional properties of the material itself. Alternatively, an anti-slip coating (such as a granular coating or an elastic adhesive layer) can be applied only to the area where the top 22 of the raised rib 20 contacts the cleaning component 4, preserving the structural strength of the roller body 10 substrate (such as metal or hard plastic). Rubber, silicone, and other materials undergo elastic deformation under pressure, increasing the actual contact area with the cleaning component 4 and inhibiting slippage caused by liquid film or contaminants. The micro-rough structure (such as particles or ripples) of the surface coating is embedded in the surface of the cleaning component 4, forming a mechanical interlock and enhancing the static and dynamic friction effects. Soft anti-slip materials (such as silicone) can reduce cutting or wear on the cleaning component 4 (such as a fiber cloth), extending its service life. The anti-slip coating can be applied only to critical contact areas to avoid damage caused by direct friction between the hard substrate and the cleaning component 4. Using high-cost anti-slip materials only in critical areas can reduce overall manufacturing costs. The raised ribs 20 made of anti-slip material can be designed as a detachable structure (such as a silicone sleeve), allowing for individual replacement after wear, without scrapping the entire roller.

[0068] In an optional embodiment of this utility model, the rib 20 is entirely made of an elastic material (such as rubber, silicone, thermoplastic elastomer, etc.). The rib 20 deforms under the pressure of the cleaning component 4 (such as a cloth or brush bristles), conforming to the surface of the cleaning component 4 and increasing the effective contact area. The elastic material has a high coefficient of friction, wear resistance, and anti-aging properties, making it suitable for complex environments such as humid and oily conditions. The rib 20 can be integrally injection molded with the roller body 10, or installed as an independent module (such as an elastic sleeve) on the surface of the rigid roller body 10. Under pressure, the elastic rib 20 conforms to the surface of the cleaning component 4, increasing the actual contact area and suppressing localized slippage caused by unevenness or moisture in the cleaning component 4. The elastic material automatically adapts to the deformation of the cleaning component 4 (such as the cloth absorbing water and swelling, or the brush bristles bending), maintaining stable transmission efficiency. The elastic rib 20 reduces hard collisions with the cleaning component 4, preventing fiber breakage, brush bristle deformation, or scratches from the silicone scraper. The elastic deformation disperses the concentrated pressure of the cleaning component 4 on the roller surface, extending the service life of the cleaning component 4. The elastic material absorbs the vibration energy when the cleaning component 4 comes into contact with the roller surface, reducing equipment operating noise and improving user experience. The elastic ribs 20 deform to disrupt the continuity of the liquid film, maintaining effective friction even in humid environments.

[0069] In an optional embodiment of this invention, 8-16 ribs 20 are arranged circumferentially along the axis. The lower limit (8 ribs) ensures a sufficient number of ribs 20 in the circumferential direction to form continuous traction, avoiding insufficient contact points due to too few ribs 20, which could cause discontinuous movement or localized slippage of the cleaning component 4. The upper limit (16 ribs) prevents the ribs 20 from being too dense, causing the roller surface to approach a "quasi-circular surface," reducing the embedding depth and friction of the ribs 20, while ensuring sufficient gaps between adjacent ribs 20 for drainage and debris removal. The 8-16 ribs 20 form multi-point engagement in the circumferential direction, ensuring that the cleaning component 4 (such as a rag or brush bristles) is continuously driven during movement, reducing speed fluctuations. Sufficient space is maintained between adjacent ribs 20, allowing liquid to drain along the gaps and preventing contaminants from remaining on the roller surface and forming a slippage layer.

[0070] In an optional embodiment of this utility model, such as Figure 5-7As shown, the ratio of the protrusion height of the rib 20 to the radius R of the roller body 10 (referring to the radius of the circle corresponding to the root position of the rib 20) is 0.1-0.15. If the protrusion height H of the rib 20 is too low (ratio < 0.1), it is difficult to effectively embed into the cleaning component 4 (such as a rag or brush bristles), resulting in insufficient friction and easy slippage. If the protrusion height of the rib 20 is too high (ratio > 0.15), it will excessively compress the cleaning component 4, potentially causing fiber breakage or bristle deformation, while also increasing the rotational resistance of the roller shaft. This ratio range ensures that the rib 20 can effectively engage with the surface of the cleaning component 4 while avoiding excessive height leading to roller shaft imbalance or excessive wear of the cleaning component 4. The height of the rib 20 is sufficient to embed into the surface of the cleaning component 4, disrupting the liquid film or contaminant isolation layer and improving transmission efficiency. By limiting the height, excessive compression of the cleaning component 4 (such as rag fibers or silicone scrapers) is avoided, preventing structural damage and extending service life. The ratio of the rib 20 height to the roller radius directly affects the contact pressure of the cleaning component 4. This design concentrates pressure at the top 22 of the rib 20, while the centrifugal force of the rotating roller disperses the pressure, preventing localized stress concentration. The rib 20 has a moderate height, and the grooves formed between adjacent ribs 20 have a reasonable depth, allowing liquid to drain quickly along the grooves and reducing slippage caused by contaminant retention. The height ratio limitation prevents excessive stress at the root of the rib 20, reducing the risk of roller breakage; it also reduces rotational resistance and drive energy consumption.

[0071] In an optional embodiment of this utility model, such as Figure 5 As shown, the outer peripheral surface of the roller body 10 includes a basic surface area 13 and a connecting surface area 14. The basic surface area 13 has no friction structures; its surface is smooth or only retains basic texture, and the material is a hard material with a low coefficient of friction (such as metal or engineering plastic), or it is polished / coated. The basic surface area 13 covers the main area of ​​the roller surface, accounting for more than 50% of the total area of ​​the outer peripheral surface, and undertakes non-core friction functions such as auxiliary support and contaminant guidance. The connecting surface area 14 is used to set friction structures such as ribs 20 and grooves. The connecting surface area 14 has a small area and focuses on providing friction in key contact areas, accounting for less than 50% of the total area of ​​the outer peripheral surface.

[0072] In an optional embodiment of this utility model, the ratio of the arc length S1 of the connecting surface area 14 in the circumferential direction to the arc length S2 of the basic surface area 13 is 0.3-0.5. The connecting surface area 14 can be distributed circumferentially at intervals (such as multiple independent friction strips) or continuously (such as locally dense friction areas) to ensure that the friction structure is uniform or directionally arranged. The lower limit of the ratio of the connecting surface area 14 (0.3) ensures the minimum necessary friction area, provides basic traction, and reduces friction energy consumption and wear. The upper limit of the ratio of the connecting surface area 14 (0.5) avoids the friction structure from being too dense, resulting in a "quasi-circular surface" effect, and maintains the embedding depth and anti-slip performance of the rib 20. A low ratio (0.3-0.4) of the connecting surface area 14 is suitable for high humidity or high pollution scenarios, and reduces the risk of slippage by prioritizing water and debris removal through a larger basic surface area 13. A high ratio (0.4-0.5) of the connecting surface area 14 is suitable for high load or hard cleaning scenarios, increasing the friction area to improve the scraping force.

[0073] like Figure 8 , 9 As shown, this utility model also provides a cleaning component, including a cleaning element 4 and a support assembly. The cleaning element 4 is wound around and covers a friction structure on the outer peripheral surface of the support assembly. A first roller 1 and at least one second roller 2 are used to tension the cleaning element 4. The cleaning element 4 is a flexible strip or sheet structure (such as a fiber cloth, silicone scraper, composite cleaning mat, etc.) used to wipe or scrape off stains on the floor. The first roller 1 (active roller) is driven to rotate by a drive motor, providing active traction force to the cleaning element 4. At least one second roller 2 (driven roller or tensioning roller) is passively rotated or its position is adjusted by an elastic mechanism to tension the cleaning element 4 and guide its movement trajectory. The friction structure is provided on the outer peripheral surface of the first roller 1 and / or the second roller 2, and increases the friction with the cleaning element 4 through ribs 20, grooves, or anti-slip coatings to suppress slippage. The cleaning element 4 is wound around and covers the friction structure surface of the support assembly, forming a closed-loop transmission system. The first roller 1 drives the cleaning element 4 to move cyclically, and the second roller 2 assists in tensioning and guiding. The friction structure ensures efficient power transmission.

[0074] This utility model also provides a cleaning device, including the aforementioned cleaning components. The cleaning device provided in the embodiments of this utility model can be a self-propelled cleaning robot or a handheld floor scrubber. The self-propelled cleaning robot can be a mopping robot, or a sweeping and mopping robot, etc.

[0075] Self-propelled cleaning robots are devices that automatically perform cleaning operations in a designated area without user intervention. When the self-propelled cleaning robot completes its cleaning task or when it needs to stop cleaning, it can return to the base station for charging, / or water replenishment, / or washing, and / or dust collection.

[0076] A self-propelled cleaning robot may include a main body and a sensing system, control system, drive system, and cleaning system mounted on the main body. The sensing system perceives environmental information around the self-propelled cleaning robot and its motion status information, providing this information to the control system. The control system can create a real-time map of the robot's environment based on the information provided by the sensing system and, combined with the robot's current motion status, provide action strategies for the robot. The drive system moves the self-propelled cleaning robot across the surface to be cleaned according to instructions from the control system.

[0077] The self-moving cleaning robot also includes a cleaning system, which may include a wet cleaning system and a dry cleaning system.

[0078] The dry cleaning system provided in this embodiment may include a roller brush, a dust box, a fan, and an air outlet. The roller brush contacts the surface to be cleaned, sweeping up and carrying debris to the front of the dust inlet duct. Then, under the negative pressure generated by the fan, the debris enters the dust box through the suction port in front of the roller brush and the dust inlet duct. The dry cleaning system may also include a side brush with a rotating shaft at an angle relative to the ground to move debris into the roller brush area of ​​the cleaning system. The roller brush may be a bristle brush, a rubber brush, or a hybrid bristle-rubber brush, etc.

[0079] The wet cleaning system may include a cleaning component, a liquid delivery mechanism, and a liquid storage tank. The cleaning component may be located below the liquid storage tank. Cleaning fluid from inside the tank is delivered to the cleaning component via the liquid delivery mechanism, allowing the cleaning component to perform wet cleaning of the surface to be cleaned. In other embodiments of this disclosure, the cleaning fluid inside the tank may also be directly sprayed onto the surface to be cleaned, and the cleaning component cleans the surface by spreading the cleaning fluid evenly. It is understood that the self-propelled cleaning robot is equipped with a liquid inlet communicating with the liquid storage tank. This inlet allows liquid from outside the self-propelled cleaning robot to be added to the liquid storage tank, enabling liquid replenishment.

[0080] The cleaning assembly provided in this embodiment includes a motion mechanism and a cleaning component 4 mounted on the machine body. The entire cleaning assembly can be mounted on the machine body via the motion mechanism, and moves with the machine body to achieve the mopping function. The motion mechanism drives the cleaning component 4, such as raising and lowering it, or moving it in various directions, including reciprocating motion and rotation, to meet different functional requirements. This allows for the differentiation of the cleaning component 4, improving the cleaning performance, efficiency, and user experience of the self-cleaning device. In the forward direction of the self-moving cleaning device, the cleaning component 4 can be located behind the roller brush. The material of the cleaning component 4 is typically a soft, absorbent material such as fabric or sponge.

[0081] In summary, this application directly increases the contact friction between the roller and the cleaning component 4 through friction structures such as ribs 20, grooves, and elastic coating layers, effectively suppressing slippage in complex environments such as wet and oily conditions. It also utilizes the deformation capability of elastic materials (such as rubber and silicone) to adapt to the deformation of the cleaning component 4, increasing the contact area; asymmetric ribs 20 (such as obtuse triangles) enhance traction efficiency through directional friction. Grooves and gaps guide the rapid discharge of liquid, preventing contaminant retention and reducing the coefficient of friction. Designs such as axially continuous ribs 20 and annular array ribs 20 provide stable linear friction, ensuring continuous movement of the cleaning component 4 and reducing speed fluctuations. Symmetrical ribs 20 (such as isosceles trapezoids) disperse contact pressure, preventing wear on the cleaning component 4 or roller surface caused by localized stress concentration. Spiral patterns and directional ribs 20 guide the cleaning component 4 along a preset trajectory, preventing deviation, wrinkling, or edge curling. The rounded ribs 20 at the top 22 and the elastic material covering reduce cutting or wear on cleaning components 4 (such as fiber cloths and silicone scrapers), extending their service life. The wide bottom ribs 20, the rigid substrate, and the elastic sleeve 12 combine to resist roller deformation under high loads, improving overall structural durability. The detachable sleeve 12 and localized anti-slip coating facilitate replacement of worn parts, reducing maintenance costs. By adjusting the density, shape, and material of the ribs 20, it is compatible with various cleaning components 4, such as hard bristles, soft cloths, and oil scrapers, adapting to home, industrial, and commercial scenarios. Drainage channels, oil-resistant coatings, and elastic deformation designs provide systematic solutions for liquids, oil stains, and other contaminants. Lightweight materials (such as aluminum alloy shaft 11) and localized friction structure design reduce equipment weight and drive energy consumption, adapting to scenarios such as mobile robots. Rubber and silicone materials absorb vibration energy, reducing equipment operating noise and improving the user experience in home and indoor settings. The evenly distributed friction structure reduces vibration of the cleaning components 4, ensuring smooth equipment movement and avoiding cleaning blind spots.

[0082] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0083] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0084] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0085] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0086] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0087] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0088] The above description of the embodiments shown in this utility model (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the utility model.

[0089] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0090] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. A bracket assembly for cleaning equipment, characterized in that, include: Support body; The first roller is rotatably connected to the support body; The second roller is rotatably connected to the support body, and at least one second roller is provided; The first roller and the second roller are arranged parallel to each other, and at least a portion of the outer peripheral surface of the first roller and the second roller is used to be covered and adhered to by the cleaning component of the cleaning device. The first roller and / or the second roller includes a roller body and a friction structure disposed on the outer peripheral surface of the roller body.

2. The support assembly according to claim 1, characterized in that, The friction structure includes at least one protrusion and / or a groove.

3. The support assembly according to claim 1, characterized in that, The friction structure includes multiple raised ribs, which are arranged in a ring array around the axis of the roller body.

4. The support assembly according to claim 3, characterized in that, The ribs extend continuously along the axial direction of the roller body.

5. The support assembly according to claim 3, characterized in that, The width of the rib gradually decreases from the bottom to the top, with the bottom being the side of the rib closer to the axis and the top being the side of the rib away from the axis.

6. The support assembly according to claim 3, characterized in that, The raised ribs include a first type of raised rib and / or a second type of raised rib, wherein the first type of raised rib and the second type of raised rib have different cross-sectional shapes but the same raised height.

7. The support assembly according to claim 6, characterized in that, The cross-section of the first type of rib and / or the second type of rib is triangular.

8. The support assembly according to claim 7, characterized in that, The cross-section of the second type of rib is an obtuse triangle, with the obtuse angle of the triangle corresponding to the top of the rib, and the other two angles of the obtuse triangle being unequal.

9. The support assembly according to claim 6, characterized in that, The cross-section of the first type of rib is an isosceles trapezoid or an isosceles triangle, and the lower base of the isosceles trapezoid or the base of the isosceles triangle corresponds to the bottom of the rib.

10. The support assembly according to claim 3, characterized in that, The raised ribs are made of anti-slip material or The top surface of the rib is coated with an anti-slip material.

11. The support assembly according to claim 3, characterized in that, The raised rib is made of an elastic material.

12. The support assembly according to claim 3, characterized in that, The ribs are provided in 8-16 circumferential directions along the axis.

13. The support assembly according to claim 3, characterized in that, The ratio of the protrusion height of the rib to the radius of the roller body is 0.1-0.

15.

14. The support assembly according to claim 1, characterized in that, The outer peripheral surface of the roller body includes a basic surface area and a connecting surface area. The connecting surface area is used to set the friction structure, and the area of ​​the basic surface area is larger than the area of ​​the connecting surface area.

15. The support assembly according to claim 14, characterized in that, The ratio of the arc length of the connecting surface area in the circumferential direction of the axis to the arc length of the basic surface area in the circumferential direction of the axis is 0.3-0.

5.

16. The support assembly according to claim 1, characterized in that, The roller body includes a shaft and a sleeve, the sleeve is fitted onto the shaft, and the friction structure is disposed on the outer peripheral surface of the sleeve.

17. The support assembly according to claim 16, characterized in that, The same roller body includes two sleeves, which are coaxially sleeved on the same shaft.

18. The support assembly according to claim 16, characterized in that, The friction structure is integrally formed with the sleeve.

19. A cleaning component, characterized in that, Includes cleaning components and a support assembly as described in any one of claims 1-18. The cleaning element is wound around the friction structure on the outer peripheral surface of the support assembly, and the first roller and at least one second roller are used to tension the cleaning element.

20. A cleaning device, characterized in that, Includes the cleaning components as described in claim 19.

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