Rolling brush, cleaning module and cleaning equipment

Abstract

The utility model provides a rolling brush. The rolling brush comprises a rolling brush body, a driving part and a shearing part. The rolling brush body is used for cleaning an operation surface; the driving part is arranged at one end of the rolling brush body and is used for driving the rolling brush body to rotate; at least part of the shearing part protrudes out of the rolling brush body and is used for shearing an entanglement wound on the rolling brush body, the shearing part comprises a first shearing part and a second shearing part, and the first shearing part and the second shearing part move relatively at a preset frequency so as to shear the entanglement. When the rolling brush is in a working state, the shearing part can perform relative reciprocating motion in the axial direction of the rolling brush to shear entanglements, so that sundries on the surface of the rolling brush are reduced, and the cleaning efficiency of the rolling brush on the ground is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cleaning equipment, and in particular, to a roller brush, a cleaning module and a cleaning equipment. Background Art

[0002] With the popularization of smart homes, cleaning robots have gradually become an indispensable cleaning device in family life. Cleaning robots are equipment that can automatically complete floor cleaning tasks within a certain range. They have the advantages of being easy to use and having high cleaning efficiency. They have gradually become one of the commonly used cleaning tools in work and life.

[0003] Cleaning robots typically include a roller brush and a fan. The fan sucks away debris swept by the roller brush to clean the floor. The roller brush can easily become entangled with hair and other debris during cleaning, affecting its cleaning efficiency and user experience. Utility Model Content

[0004] The purpose of this disclosure is to provide a roller brush, a cleaning module and a cleaning device to address the technical problems in the related art. The specific solution is as follows:

[0005] A first aspect of an embodiment of the present disclosure provides a roller brush, comprising: a roller brush body for cleaning an operating surface, the surface of the roller brush body being provided with bristles and / or blades; a driving portion, arranged at one end of the roller brush body, for driving the roller brush body to rotate at a first speed; a shearing portion, at least partially protruding from the roller brush body, for shearing an entanglement wound around the roller brush body, wherein the shearing portion comprises a first shearing portion and a second shearing portion, and the first shearing portion and the second shearing portion move relative to each other at a preset frequency to shear the entanglement.

[0006] In some embodiments, the roller brush body includes a serration portion protruding from the roller brush body and extending axially along the roller brush body, configured to prevent the shearing portion from being damaged.

[0007] In some embodiments, the serration portion includes a first serration portion and a second serration portion, a first gap is defined between the first serration portion and the second serration portion, and the shearing portion is disposed in the first gap.

[0008] In some embodiments, the teeth of the first serration portion and the teeth of the second serration portion are arranged in mirror symmetry along the first gap.

[0009] In some embodiments, the roller brush body includes at least two groups of serrations, and the two groups of serrations are radially symmetrical.

[0010] In some embodiments, the serration portion and the roller brush body are integrally formed or separately formed.

[0011] In some embodiments, the roller brush further includes: a driving end, disposed at at least one end of the roller brush body, configured to drive the first shearing portion and / or the second shearing portion to move.

[0012] In some embodiments, the driving end includes: a worm, which rotates at the first speed relative to the roller brush body; and a worm wheel, which engages with the worm and rotates at a second speed driven by the worm, wherein the second speed is less than the first speed.

[0013] In some embodiments, the first speed is 8-12 times greater than the second speed.

[0014] In some embodiments, the driving end also includes: a cam, which is coaxially connected to the worm gear and rotates eccentrically as the worm gear rotates; a cam connector, one end of which is connected to the cam and the other end is connected to the first shearing portion and / or the second shearing portion, and in response to the eccentric rotation of the cam, the first shearing portion and the second shearing portion move relative to each other at the preset frequency.

[0015] In some embodiments, the cam is eccentric by 3 mm to 5 mm.

[0016] In some embodiments, the first shearing portion is a non-movable rack extending in the axial direction; the second shearing portion includes a plurality of movable racks arranged in the axial direction, and the plurality of movable racks move under the drive of the driving end.

[0017] In some embodiments, the second shearing portion further includes a connecting member configured to connect the plurality of movable racks to enable them to move synchronously.

[0018] In some embodiments, the first shearing portion has first shearing teeth arranged in the axial direction, and a tooth pitch of the first shearing teeth is the same as a tooth pitch of the saw teeth of the first sawing portion.

[0019] In some embodiments, the second shearing portion has second shearing teeth arranged in the axial direction, and a tooth spacing between the second shearing teeth is smaller than a tooth spacing between the first shearing teeth.

[0020] In some embodiments, the second shearing portion has second shearing teeth arranged in the axial direction, a second gap is defined between the plurality of movable racks, and a spacing of the second gap is smaller than a tooth spacing of the second shearing teeth.

[0021] In some embodiments, the movable rack includes: a first movable rack, a second movable rack and a first shaft, wherein the first shaft is arranged between the first movable rack and the second movable rack; wherein the first movable rack and the second movable rack move synchronously in opposite directions around the first shaft.

[0022] In some embodiments, the shearing portion further includes an elastic member configured to bring the first shearing portion and the second shearing portion closer to each other.

[0023] In some embodiments, the roller brush further includes: a sealing member disposed in the first gap, configured to prevent the entangled object from entering the interior of the roller brush body through the first gap.

[0024] In some embodiments, the sealing member includes an elastic portion and a sealing portion, and the sealing portion presses against the first shearing portion or the second shearing portion under the action of the elastic portion.

[0025] A second aspect of the present disclosure provides a cleaning module, comprising the roller brush provided in the first aspect of the present disclosure.

[0026] A third aspect of the present disclosure provides a cleaning device, comprising the cleaning module provided in the second aspect of the present disclosure.

[0027] Compared with the related art, the above solution of the embodiment of the present disclosure has at least the following beneficial effects:

[0028] The roller brush provided herein has a shearing portion. When the roller brush is in operation, the shearing portion reciprocates relative to the brush's axial direction to shear away entangled material, thereby reducing debris on the brush surface and improving the brush's cleaning efficiency. This also prevents a large amount of entangled material from accumulating and entering the brush's interior, potentially affecting its proper operation, thereby extending the brush's service life.

[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0031] Figure 1 The figure is a schematic structural diagram of a roller brush according to an exemplary embodiment.

[0032] Figure 2 The figure is a schematic diagram of the internal structure of a roller brush according to an exemplary embodiment.

[0033] Figure 3 yes Figure 2 A partial enlarged view of part A.

[0034] Figure 4FIG. 1 is a partial exploded view of the internal structure of a roller brush according to an exemplary embodiment.

[0035] Figure 5 is an axial cross-sectional view of a roller brush according to an exemplary embodiment.

[0036] Figure 6 FIG. 1 is a partially enlarged view of a serration portion according to an exemplary embodiment.

[0037] Reference numerals:

[0038] The roller brush body 100, the accommodating space 101, the blade 110, the first shaft 120, the serrated portion 130, the first serrated portion 131, the second serrated portion 132, the seal 140, the elastic portion 150, the step portion 160, the first step surface 161, and the second step surface 162;

[0039] Driving unit 200; shearing unit 300, first shaft hole 301, second shaft hole 302, first shearing unit 310, first shearing teeth 311, second shearing teeth 312, second shearing unit 320, first movable rack 321, second movable rack 322, connecting unit 323, elastic member 324, second shaft 325, third shaft 326, connecting member 327, protective patch 328;

[0040] Driving end 400, worm gear 410, worm 420, cam 430, cam connector 440;

[0041] Roller brush 1000. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present disclosure, rather than all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort are intended to fall within the scope of protection of the present disclosure.

[0043] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms "a," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "A variety of" generally includes at least two, and other quantifiers are similar.

[0044] It should be understood that although the terms "first," "second," "third," etc. may be used to describe in the present disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the objects being described. For example, without departing from the scope of the present disclosure, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. In addition, the terms "first," "second," "third," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0045] It should be understood that the term "and / or" as used herein is merely a description of an association between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character " / " as used herein generally indicates that the associated objects are in an "or" relationship. The singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0046] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0047] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0048] In related technologies, due to the complex nature of dirt and dust on the work surface, when the roller brush is cleaning the work surface, hair and other entangled objects on the work surface can easily become entangled with the outer surface of the roller brush as it rolls, making it difficult for the roller brush to clean the work surface. In addition, if the entangled objects accumulate too much, they may enter the roller brush and affect its normal operation.

[0049] Therefore, the present disclosure provides a roller brush, comprising: a roller brush body, configured to clean an operating surface; a driving portion, arranged at at least one end of the roller brush body, configured to drive the roller brush body to rotate at a first speed; a shearing portion, at least partially protruding from the roller brush body, configured to shear an entanglement wrapped around the roller brush body, wherein the shearing portion comprises a first shearing portion and a second shearing portion, and the first shearing portion and the second shearing portion reciprocate relative to each other at a preset frequency to shear the entanglement.

[0050] The roller brush provided herein has a shearing portion. When the roller brush is in operation, the shearing portion reciprocates relative to the roller brush's axial direction to shear away entangled material, thereby reducing debris on the roller brush surface and preventing entanglement. This improves the roller brush's cleaning efficiency and enhances the user experience. Furthermore, the shearing portion prevents a large amount of entangled material from accumulating and entering the roller brush, thereby affecting its normal operation.

[0051] Optional embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0052] like Figure 1 As shown, a first aspect of an embodiment of the present disclosure provides a roller brush 1000, comprising: a roller brush body 100, a driving unit 200, and a cutting unit 300. The roller brush body 100 is provided with bristles or blades 110 on its surface, which are used to clean the operating surface. The driving unit 200 is disposed at at least one end of the roller brush body 100 and is configured to drive the roller brush body 100 to rotate at a first speed to clean the operating surface. The cutting unit 300 is disposed on the roller brush body 100, and at least a portion of the cutting unit 300 protrudes from the surface of the roller brush body 100 in a radial direction of the roller brush 100. When an object is wrapped around the roller brush body 100, the portion of the cutting unit 300 protruding from the surface of the roller brush body 100 can cut the object, thereby preventing the object from affecting the normal operation of the roller brush 100. The object includes, but is not limited to, hair, thread, cloth strips, paper scraps, and the like.

[0053] In some embodiments, as Figure 2 As shown, the shearing portion 300 at least partially protrudes from the roller brush body 100, thereby shearing the entanglement wrapped around the surface of the roller brush body 100, wherein the shearing portion 300 includes a first shearing portion 310 and a second shearing portion 320, and the first shearing portion 310 and the second shearing portion 320 reciprocate relative to each other at a preset frequency to shear the entanglement.

[0054] In some embodiments, as Figure 2 、 Figure 3As shown, the first shearing section 310 is a non-movable rack extending axially along the roller brush 1000 and having first shearing teeth 311 arranged along the axial direction. The second shearing section 320 includes a plurality of movable racks having second shearing teeth 312 arranged along the axial direction. Driven by an external force, the plurality of movable racks reciprocate, and the interlacing of the first and second shearing teeth 311, 312 cuts off entanglements in the shearing section 300. Specifically, driven by an external force, the second shearing section 320 can be repeatedly interlaced relative to the first shearing section 310. Due to the repeated interlacing of the first and second shearing teeth 311, 312, entanglements can be cut off at the intersection of the first and second shearing teeth 311, 312. The blades 110 and bristles transport the cut entanglements toward the dust collection channel, allowing them to be drawn into the dust collection box, preventing them from affecting the normal operation of the roller brush 1000.

[0055] In some embodiments, at least a portion of the first shearing teeth 311 and the second shearing teeth 312 are beveled surfaces, forming tooth edges. This makes the first shearing portion 310 and the second shearing portion 320 more convenient and labor-saving when staggered shearing of wound materials, thereby improving shearing efficiency. Furthermore, shearing efficiency can be improved by increasing the sharpness of the shearing surface, allowing the scissors to be both labor-saving and efficient when shearing different materials. Specifically, the sharpness of the shearing surface can be achieved by controlling the tooth edge angle of the shearing teeth and the flatness and smoothness of the shearing surface.

[0056] In some embodiments, there is a second gap between the multiple movable racks. In order to avoid the omission of shearing of some areas during the movement of the multiple movable racks, during the movement of the multiple movable racks, when two adjacent movable racks move until the second shearing teeth 312 are parallel to the first shearing teeth 311, the spacing of the second gap is smaller than the tooth spacing of the second shearing teeth 312. Thus, shearing without omission can be achieved within the working range of the second shearing part 320. No matter where the winding is on the shearing part 300, the winding can be cut off by the interlacing of the first shearing teeth 311 and the second shearing teeth 312.

[0057] In some embodiments, the tooth spacing of the second shearing teeth 312 is smaller than the tooth spacing of the first shearing teeth 311. When the shearing portion is in operation, due to the smaller tooth spacing of the second shearing teeth 312, the second shearing teeth 312 intersect with the first shearing teeth 311 more frequently within a fixed interval, and the degree of interleaving within the fixed range is more intensive, thereby better cooperating with the first shearing teeth 311, thereby increasing the number of intersections between the second shearing teeth 312 and the first shearing teeth 311 and more thoroughly shearing the wound object.

[0058] Specifically, each of the movable racks includes: a first movable rack 321, a second movable rack 322 and a connecting portion 323. Take one of them as an example. Figure 2 、 Figure 3 、 Figure 4 As shown, the connecting portion 323 has a first axial hole 301 extending through its center. The first shaft 120 extends through this hole 301, allowing the movable rack to rotatably connect to the roller. This allows the connecting portion 323 to drive the first and second movable racks 321, 322 to freely rotate about the first shaft 120. The first shaft 120 is disposed within and connected to the roller brush body 100, extending through the first axial hole 301, allowing the connecting portion 323 to rotate about the first shaft 120. The first movable rack 321 is disposed at one end of the connecting portion 323, and the second movable rack 322 is disposed at the other end. The connecting portion 323 is positioned between the first and second movable racks 321, 322, enabling them to rotate synchronously and in opposite directions. Furthermore, under the action of an external driving force, in response to the connection portion 323 rotating around the first shaft 120 , the first movable rack 321 and the second movable rack 322 rotate synchronously and in opposite directions around the axes.

[0059] In some embodiments, as Figure 4 As shown, a protective patch 328 is provided on the side of the connecting portion 323 away from the first shearing portion 310. The protective patch 328 is used to protect the movable rack from damage caused by excessive external driving force. The shape of the protective patch 328 is similar to that of the connecting portion 323, but the overall size of the protective patch 328 is slightly smaller than that of the connecting portion 323. The protective patch 328 has an axial hole extending through the center. The axial hole corresponds to the first axial hole 301 on the surface of the connecting portion 323 and is configured to connect the movable rack to the first shaft body 120.

[0060] In some embodiments, as Figure 4 、 Figure 5As shown, the second shearing portion 320 further includes an elastic member 324, which is sleeved onto the first shaft 120 and located at the end of the first shaft 120 away from the first shearing portion 310. The ends of the elastic member 324 respectively abut against a protective patch 328 on the exterior of the connecting portion 323 and the inner wall of the roller brush body 100, thereby applying pressure to the second shearing portion 320 toward the first shearing portion 310. Under the elastic force of the elastic member 324, the second shearing portion 320 abuts against the first shearing portion 310, allowing the second shearing teeth 312 to intersect with the first shearing teeth 311 during movement, thereby cutting hair and other debris entangled in the roller brush body 100.

[0061] In some embodiments, a plurality of movable racks may be provided inside the roller, and the plurality of movable racks may reciprocate under the action of an external force, so that the second shearing teeth 312 and the first shearing teeth 311 are interlaced to achieve cutting of the wound material. Figure 3 As shown, a second shaft 325 is provided on the connecting portion 323. The second shaft 325 is adapted to drive the connecting portion 323 to rotate around the first shaft 120 under the action of an external force.

[0062] It should be noted that the present disclosure does not specifically limit the rotation frequency of the movable rack. Multiple movable racks can have the same rotation frequency, and the second shearing portion 320 and the first shearing portion 310 can be staggered to achieve shearing of the winding.

[0063] In some embodiments, as Figure 3 As shown, the second shearing portion 320 further includes a connecting member 327 configured to connect the multiple movable racks, enabling the multiple movable racks to rotate synchronously about their axes. Specifically, a second shaft 325 is provided on the side of the connecting portion 323 away from the first shearing portion 310. The second shaft 325 is configured to connect to the connecting member 327. The connecting member 327 is an elongated structure with multiple second shaft holes 302 extending through its surface. Each second shaft hole 302 matches the shape and size of the second shaft 325 to connect the multiple second shafts 325, allowing the multiple connecting portions 323 to rotate synchronously under the drive of the connecting member 327.

[0064] In some embodiments, as Figure 3 As shown, among the multiple movable racks, a third shaft 326 is provided on the surface of the connecting portion 323 adjacent to or away from the driving portion 200. The third shaft 326 is provided on the side of the connecting portion 323 away from the first shearing portion 310 and is configured to be connected to the driving end 400 to drive the movable rack to move relative to the non-movable rack.

[0065] In some embodiments, as Figure 3 As shown, the driving end 400 is arranged at at least one end of the roller brush body 100, and is configured to drive the first shearing portion 310 or the second shearing portion 320 to move back and forth in the axial direction of the roller brush 1000, so that the first shearing teeth 311 and the second shearing teeth 312 are intertwined with each other to achieve cutting of the entangled material.

[0066] In some embodiments, as Figure 3 As shown, the drive end 400 includes a worm 420 and a worm wheel 410. Inside the roller brush body 100, the worm 420 and worm wheel 410 cooperate to transmit motion between the two intersecting axes. The worm 420, similar in shape to a screw, is located at at least one end of the roller brush body 100.

[0067] In some embodiments, when the roller brush 1000 is installed on a cleaning device, the roller brush body 100 can rotate relative to the cleaning device. At this time, the worm 420 is engaged with at least part of the cleaning device. When the roller brush body 100 rotates relative to the cleaning device, the worm 420 and the cleaning device are in a relatively stationary state.

[0068] In response to the roller brush body 100 rotating at a first speed to clean the operating surface, the worm 420 rotates relative to the roller brush body 100 at the first speed, driving the worm gear 410 to rotate at a second speed. The second speed is less than the first speed, and the first speed may be 8-12 times greater than the second speed. Under these conditions, the interleaving rate of the second shearing portion 320 and the first shearing portion 310 is lower than the rotation rate of the worm 420, thereby preventing damage to the mechanical components within the roller brush 1000 caused by the excessively fast transmission speed of the worm gear 410.

[0069] In addition, the teeth on the worm 420 are continuous and uninterrupted spiral teeth. Therefore, the teeth on the worm 420 are continuously engaged with the teeth of the worm wheel 410. The teeth of the worm 420 do not enter and exit the meshing process, which has the technical effects of stable operation, relatively low impact, vibration and noise. The worm 420 has the advantages of compact transmission structure, small size, light weight, smooth transmission and low noise.

[0070] In some embodiments, the worm wheel 410 and worm 420 are self-locking. When the helix angle of the worm 420 is very small, the worm 420 can only drive the worm wheel 410, while the worm wheel 410 cannot drive the worm 420. Therefore, the worm 420 can be connected to the aforementioned drive end 400. When the roller brush body 100 is in operation, the worm 420 rotates under the drive end 400, driving the worm wheel 410 to rotate. The rotation speed of the worm 420 is approximately 10 times that of the worm wheel 410.

[0071] In some embodiments, as Figure 3 As shown, the driving end 400 also includes: a cam 430 and a cam connector 440. The cam 430 is coaxially connected to the worm gear 410 and rotates eccentrically with the rotation of the worm gear 410. The cam 430 can be a disc cam. The cam connector 440 includes at least two connecting holes. When there are two connecting holes, the two connecting holes are respectively connected to the cam 430 and the second shearing portion 320. Specifically, the cam connector 440 is movably connected to the second shearing portion 320 through the third shaft 326. In response to the eccentric rotation of the cam 430, the cam connector 440 drives the second shearing portion 320 to reciprocate in the axial direction of the roller brush 1000 at a preset frequency. Furthermore, the cutting of the winding material is achieved through the relative movement of the second shearing portion 320 and the first shearing portion 310. The cam 430 can rotate continuously, so that efficient work can be achieved. The cam 430 cooperates with the cam connector 440 to form a circulatory mechanical transmission system, thereby improving the working efficiency of the entire system. The system has the advantages of simple mechanical structure, compact structure, high working efficiency, and long service life.

[0072] In some embodiments, the reciprocating motion pattern of the second shearing portion 320 and its preset frequency define the profile of the cam 430. When the cam 430 rotates coaxially with the worm gear 410, the profile of the cam 430 pushes against the cam connector 440, causing the cam connector 440 to drive the second shearing portion 320 in reciprocating motion. Consequently, as the cam 430 rotates continuously, the second shearing portion 320 can perform intermittent, predictable motion. Specifically, the cam 430 can be eccentrically 3mm to 5mm, meaning that the reciprocating distance of the second shearing portion 320 in the axial direction of the roller brush 1000 is 3mm to 5mm.

[0073] Similarly, in some embodiments, the cam connector 440 can also be connected to the first shearing portion 310, and the worm gear 410 is driven to rotate by the worm 420. Further, the cam 430 and the worm gear 410 rotate coaxially. The cam connector 440 is respectively connected to the cam 430 and the first shearing portion 310, and the cam connector 440 pushes the first shearing portion 310 to reciprocate in the axial direction of the roller brush 1000, so that the first shearing teeth 311 and the second shearing teeth 312 are staggered and cut, thereby realizing the cutting of the winding material on the roller brush body 100.

[0074] In some embodiments, two worm gears 410 may be provided inside the roller brush body 100, and the two worm gears 410 are synchronously driven by a worm 420. The worm gears 410 include a first worm gear and a second worm gear, and the first worm gear and the second worm gear have different gear modules. When the worm 420 drives the first worm gear and the second worm gear, the first worm gear and the second worm gear have different rotation speeds.

[0075] Furthermore, the first worm gear is connected to the first shearing portion 311 via a first connecting member, and the second worm gear is connected to the second shearing portion 312 via a second connecting member, wherein the second connecting member may be a cam connecting member 440. In response to the worm 420 rotating at a first speed, the first worm gear and the second worm gear respectively drive the first shearing portion 310 and the second shearing portion 320 to move at different rotational speeds. Due to the reciprocating motion of the first shearing portion 310 and the second shearing portion 320, the first shearing teeth 311 and the second shearing teeth 312 alternately cut, enabling the shearing portion 300 to shear the wound material on the roller brush body 100.

[0076] In some embodiments, the roller brush body 100 further includes a serration portion, which protrudes from the roller brush body 100 and extends axially along the roller brush body 100 to protect the shearing portion 300 and prevent the shearing portion 300 from being damaged.

[0077] like Figure 5 As shown, the serrations include a first serration 131 and a second serration 132. The tips of the first and second serrations 131, 132 face the same direction, and a first gap is defined between them. The shearing portion 300 is positioned in the first gap. The teeth of the first and second serrations 131, 132 are arranged in mirror-image symmetry along the first gap. When the roller brush 1000 is not in operation, the tips of the serrations are positioned higher than the tips of the shearing portion 300 in the radial direction of the roller brush body 100. The shearing portion 300 is adapted to move within the serrations to cut through windings. When the roller brush 1000 is in operation, as the roller brush body 100 rotates, the serrations contact the operating surface or windings thereon before the shearing portion 300, thereby protecting the shearing portion 300 from potential damage from hard objects on the operating surface.

[0078] In some embodiments, the teeth of the first serration portion 131 and the teeth of the second serration portion 132 are arranged in mirror symmetry along the first gap. The teeth of the first serration portion 131 and the second serration portion 132 work together to confine the shearing portion 300 within the first gap and shield the shearing portion 300, thereby preventing external objects from colliding with the shearing portion 300 and damaging the shearing portion 300.

[0079] In some embodiments, as Figure 5 、 Figure 6As shown, the side of the first serration 131 opposite the second serration 132 is a flat surface, and the side of the second serration 132 opposite the first serration 131 is a stepped portion 160. Specifically, the stepped portion 160 includes a first stepped surface 161 and a second stepped surface 162. Because the second shearing teeth 312 of the second shearing portion 320 are relatively thin, when the first serration 131 is pressed and moves toward the second serration 132, the first serration 131 is adapted to squeeze the first shearing portion 310, causing the first shearing portion 310 to contact the first stepped surface 161, while simultaneously enclosing the second shearing portion 320 within the first gap, thereby protecting the second shearing portion 320 from damage due to external forces. The first serrated portion 131 or the first step surface 161 is located outside the shearing portion 300. For example, when the roller brush 1000 is squeezed by an external heavy object, the first serrated portion 131 or the first step surface 161 is first compressed. Under the action of pressure, the first serrated portion 131 or the first shearing tooth portion 310 can be brought into contact with the first step surface 161 to enclose the second shearing portion 320 in the first gap, thereby protecting the second shearing portion 320 from damage.

[0080] In some embodiments, the roller brush body 100 includes at least two groups of serrations, such as Figure 1 or Figure 5 As shown, the two sets of serrations are symmetrically arranged in the radial direction of the roller brush body 100. A corresponding set of shearing portions 300 can be provided inside each set of serrations. These shearing portions 300 can simultaneously shear the entangled material on both sides of the roller brush 1000 under the protection of the serrations, thereby increasing the shearing area for the entangled material and reducing the impact of the entangled material on the cleaning efficiency of the roller brush 1000.

[0081] In some embodiments, the serrations are integrally formed with the roller brush body 100. The integrally formed part has good mechanical strength, a smooth surface, and is easy to operate and has high production efficiency during processing.

[0082] In some embodiments, the serrated portion and the roller brush body 100 may be a split structure. Specifically, the serrated portion may be detachably mounted on the roller brush body 100 after being separately formed, and configured to protect the shearing portion 300, which has the advantages of easy maintenance and free disassembly.

[0083] In some embodiments, a receiving space 101 is provided on the side of the first serrated portion 131 or the second serrated portion 132 facing the first gap. The receiving space 101 is configured to accommodate a seal 140. The seal 140 is configured to prevent entangled objects from entering the roller brush body 100 through the first gap. Specifically, the seal 140 includes an elastic portion 150 and a sealing portion. The sealing portion is provided inside the receiving space 101 and is at least partially exposed from the first gap. An elastic portion 150 is further provided between the inner side wall of the receiving space 101 and the sealing portion. The elastic portion 150 is configured to cause the seal 140 to have a tendency to move from the inside of the receiving space 101 toward the outside of the receiving space 101, so that the sealing portion, under the action of the elastic portion 150, presses against the first shearing portion 310 or the second shearing portion 320. Furthermore, one end of the seal 140 exposed from the accommodating space 101 abuts against the first shearing portion 310 or the second shearing portion 320 to make the first shearing portion 310 or the second shearing portion 320 close to the second shearing portion 320 or the first shearing portion 310, and at the same time, blocks the gap between the first serrated portion 131 and the first shearing portion 310, or blocks the gap between the second serrated portion 132 and the second shearing portion 320, to prevent entanglements from entering the roller brush body 100 from the first gap.

[0084] In some embodiments, the surface of the roller brush body 100 is provided with bristles or blades 110. Figure 1 As shown, the surface of the roller brush 1000 is provided with multiple groups of blades, each group of blades extending axially along the roller brush body 100. As an example, each group of blades includes two blades 110, and the two blades 110 are arranged on the roller brush body 100 at an angle to each other, and are configured to transport dust from the operating surface to the dust collection channel. In some embodiments, bristles can be arranged between at least two groups of blades 110 to assist in cleaning the operating surface, and the bristles are arranged roughly parallel to the blades 110. Specifically, the bristles have a fixed end connected to the roller brush body 100 and a free end away from the roller brush body 100. The free end of the bristles can be tilted toward the middle of the roller brush body 100. Under this structural design, hair or dust entangled on the roller brush body 100 will rotate with the roller brush 100. Under the action of the tilted bristles, the entangled materials are transported from the two ends of the roller brush body 100 to the dust collection channel in the middle, so that the entangled materials are transported to the dust collection channel.

[0085] In some embodiments, to prevent entangled objects on the surface of the roller brush body 100 from entering the drive unit 200, the roller brush further includes a baffle. The baffle is disposed at both ends of the roller brush body 100 and extends radially in an annular manner. In the radial direction of the roller brush body 100, the diameter of the baffle is larger than that of the roller brush body 100, and is configured to isolate the roller brush body 100 from the drive unit 200, thereby preventing entangled objects on the roller brush body 100 from entering the drive unit 200.

[0086] Specifically, when the roller brush 1000 rotates at high speed in normal working state, the dirt and dust wrapped around the surface of the roller brush body 100 will be transported from both ends of the roller brush body 100 toward the middle. The setting of the baffle can effectively prevent the dirt and dust from entering the interior of the driving part 200.

[0087] A second aspect of the present disclosure provides a cleaning module, comprising the roller brush 1000 provided in the first aspect of the present disclosure.

[0088] The roller brush 1000 provided in the first aspect of the present disclosure is installed inside the cleaning module. When the roller brush 1000 is in operation, the blades 110 and bristles are used to clean the operating surface. In response to the rotation of the roller brush 1000, the driving end 400 drives the worm 420 to rotate at a first speed. Correspondingly, the worm wheel 410 decelerates along with the worm 420. The cam 430 is coaxial with the worm wheel 410. Due to the eccentric structure of the cam 430, when the worm wheel 410 rotates under the drive of the worm 420, the cam 430 rotates eccentrically, driving the cam connector 440 to drive the second shearing portion 320 to move around the axis in the axial direction of the roller brush 1000.

[0089] Furthermore, the first shearing section 310 can be a movable or fixed rack. In response to the movement of the second shearing section 320 relative to the first shearing section 310, the second shearing teeth 312 repeatedly intersect with the first shearing teeth 311, thereby shearing away entangled materials such as hair on the shearing teeth. Because the blades 110 and bristles are both arranged obliquely on the roller brush body 100, the sheared entangled materials can be sucked away through the dust collection channel under the guidance of the blades 110 and bristles.

[0090] Thus, the shearing portion 300 can realize relative reciprocating motion in the axial direction of the roller brush 1000 to shear the entangled materials, thereby reducing the debris on the surface of the roller brush 1000 and improving the cleaning efficiency of the roller brush 1000 on the operating surface. At the same time, it prevents a large amount of entangled materials from accumulating into the roller brush 1000 and affecting the normal operation of the roller brush, thereby improving the user experience.

[0091] A third aspect of the present disclosure provides a cleaning device, comprising the cleaning module provided in the second aspect of the present disclosure. The cleaning module, equipped with a roller brush 1000, is assembled with the cleaning device to perform cleaning tasks. The cleaning device described in the present disclosure may include, but is not limited to, a self-propelled robot, a mopping robot, a vacuum cleaner, a floor scrubber, a lawn mower, and the like. Any cleaning device that can be equipped with the roller brush 1000 or cleaning module described in the present disclosure can be implemented.

[0092] The specific structure, working principle, and beneficial effects of the roller brush, cleaning module, and cleaning device provided by the embodiments of the present disclosure can refer to the roller brush, cleaning module, and cleaning device described in any of the above embodiments, and will not be repeated here.

[0093] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[0094] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A roller brush, characterized in that: include: A roller brush body is used to clean the operating surface, and the surface of the roller brush body is provided with bristles and / or blades; a driving portion, disposed at one end of the roller brush body, for driving the roller brush body to rotate at a first speed; The shearing portion at least partially protrudes from the roller brush body and is used to shear the entanglements on the roller brush body, wherein the shearing portion includes a first shearing portion and a second shearing portion, and the first shearing portion and the second shearing portion move relative to each other at a preset frequency to shear the entanglements.

2. The roller brush according to claim 1, characterized in that: The roller brush body comprises: The serration portion protrudes from the roller brush body and extends axially along the roller brush body, and is configured to prevent the shearing portion from being damaged.

3. The roller brush according to claim 2, characterized in that: The serrated portion includes a first serrated portion and a second serrated portion. A first gap is defined between the first serrated portion and the second serrated portion. The shearing portion is disposed in the first gap.

4. The roller brush according to claim 3, characterized in that: The teeth of the first serration portion and the teeth of the second serration portion are arranged in mirror symmetry along the first gap.

5. The roller brush according to claim 2, characterized in that: The roller brush body includes at least two groups of sawtooth portions, and the two groups of sawtooth portions are radially symmetrical.

6. The roller brush according to claim 2, characterized in that: The serrated portion and the roller brush body are integrally formed or separately formed.

7. The roller brush according to claim 1, characterized in that: The roller brush also includes: The driving end is provided at at least one end of the roller brush body and is configured to drive the first shearing portion and / or the second shearing portion to move.

8. The roller brush according to claim 7, characterized in that: The driving end includes: a worm, rotating relative to the roller brush body at the first speed; The worm wheel is engaged with the worm and rotates at a second speed driven by the worm, wherein the second speed is lower than the first speed.

9. The roller brush according to claim 8, characterized in that: The first speed is 8-12 times the second speed.

10. The roller brush according to claim 8, characterized in that: The driving end also includes: a cam coaxially connected to the worm wheel and eccentrically rotating as the worm wheel rotates; A cam connector has one end connected to the cam and the other end connected to the first shearing portion and / or the second shearing portion. In response to the eccentric rotation of the cam, the first shearing portion and the second shearing portion reciprocate relative to each other at the preset frequency.

11. The roller brush according to claim 10, characterized in that: The cam is eccentric by 3 mm to 5 mm.

12. The roller brush according to claim 7, characterized in that: The first shearing portion is a non-movable rack extending in the axial direction; The second shearing portion includes a plurality of movable racks arranged along the axial direction, and the plurality of movable racks move under the driving of the driving end.

13. The roller brush according to claim 12, characterized in that: The second shearing portion further includes a connecting member configured to connect the plurality of movable racks to enable them to move synchronously.

14. The roller brush according to claim 4, characterized in that: The first shearing portion has first shearing teeth arranged in the axial direction, and the tooth spacing of the first shearing teeth is the same as the tooth spacing of the saw teeth of the first sawtooth portion.

15. The roller brush according to claim 14, characterized in that: The second shearing portion has second shearing teeth arranged in the axial direction, and the tooth spacing of the second shearing teeth is smaller than the tooth spacing of the first shearing teeth.

16. The roller brush according to claim 12, characterized in that: The second shearing portion has second shearing teeth arranged in the axial direction, and second gaps are formed between the plurality of movable racks. The spacing of the second gaps is smaller than the tooth spacing of the second shearing teeth.

17. The roller brush according to claim 12, characterized in that: The movable rack includes: a first movable rack, a second movable rack and a first shaft, wherein the first shaft is arranged between the first movable rack and the second movable rack; wherein the first movable rack and the second movable rack move synchronously in opposite directions around the first shaft.

18. The roller brush according to claim 1, characterized in that The shearing portion further includes an elastic member configured to bring the first shearing portion and the second shearing portion closer to each other.

19. The roller brush according to claim 3, characterized in that: The roller brush also includes: A sealing member is provided in the first gap and is configured to prevent the entangled object from entering the interior of the roller brush body through the first gap.

20. The roller brush according to claim 19, characterized in that The sealing member includes an elastic portion and a sealing portion, and the sealing portion presses against the first shearing portion or the second shearing portion under the action of the elastic portion.

21. A cleaning module, characterized in that: The invention comprises the roller brush according to any one of claims 1 to 20.

22. A cleaning device, characterized in that: Includes the cleaning module according to claim 21.

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