A roller brush assembly and a cleaning device

Abstract

The present invention relates to the technical field of cleaning devices, and in particular to a roller brush assembly and a cleaning device, wherein the roller brush assembly comprises: a roller brush, an anti-entanglement member, and a driving mechanism, wherein the roller brush comprises a roller brush main body and a plurality of brush strips spaced circumferentially along the roller brush main body; the anti-entanglement member comprises a scraper cylinder sleeved outside the roller brush main body, the scraper cylinder is eccentrically arranged with the roller brush main body, the scraper cylinder comprises a plurality of scraper strips spaced circumferentially, and an opening is formed between two adjacent scraper strips for the brush strips to extend out; the driving mechanism is suitable for driving the roller brush and the anti-entanglement member to rotate in the same direction and at the same angular velocity, and during the rotation of the roller brush and the scraper cylinder, the brush strip can switch between a distal end of the scraper strip near the root and a proximal end of the scraper strip near the end, so that the scraper strip can peel off the hair entangled on the brush strip, thereby quickly and efficiently removing the hair entangled on the brush strip, reducing the entanglement of the hair on the roller brush, improving the cleaning effect of the roller brush and the service life of the machine, and effectively solving the problem of the roller brush being easily entangled with hair in the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning devices, and in particular to a roller brush assembly and a cleaning device. Background Art

[0002] Cleaning devices such as vacuum cleaners and sweeping robots are household appliances for indoor cleaning and sanitation. They are used to remove dust from the floor, carpet, walls, furniture, clothing and various gaps, realize autonomous cleaning of the indoor environment, replace manual labor, greatly reduce labor intensity and improve labor efficiency, and are suitable for indoor cleaning in homes and public venues. With the increasing demand for cleaning hair and pet hair, it is easy for long hair to be entangled on the roller brush of conventional vacuum cleaners and sweeping robots. Hair entangled on the roller brush is not easy to clean, which will directly affect the cleaning effect of the roller brush and the life of the machine, affecting the user experience. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the roller brush in the prior art that hair is easily entangled, thereby providing a roller brush assembly and a cleaning device that can reduce hair entanglement.

[0004] In order to solve the above problems, in the first aspect, the present invention provides a roller brush assembly, comprising: a roller brush, an anti-entanglement member, and a driving mechanism, wherein the roller brush comprises a roller brush main body and a plurality of brush strips arranged on the outer peripheral wall of the roller brush main body at circumferential intervals along the roller brush main body; the anti-entanglement member comprises a scraper cylinder mounted outside the roller brush main body, the scraper cylinder is eccentrically arranged with the roller brush main body, the scraper cylinder comprises a plurality of scraper strips arranged at circumferential intervals, and an opening is formed between two adjacent scraper strips for the brush strips to extend out; the driving mechanism is suitable for driving the roller brush and the anti-entanglement member to rotate in the same direction and at the same angular velocity, and during the rotation of the roller brush and the scraper cylinder, the brush strip can switch between a root close to the distal end of the scraper strip and an end close to the proximal end of the scraper strip, so that the scraper strip can peel off the hair entangled on the brush strip.

[0005] Optionally, the number of the scraping strips is the same as the number of the brush strips, the scraping strips are arc-shaped plate structures, the scraping strips are suitable for extending along the length direction of the roller brush, and the long strips on both sides of the scraping strips are formed into scraping edges suitable for removing hair.

[0006] Optionally, the maximum gap distance between the roller brush body and the scraper drum at the asymptotic end is set to D1, and the extension length of the brush strip in the radial direction of the roller brush body is D2, where D2≥D1.

[0007] Optionally, the anti-entanglement member further comprises a support portion, wherein the support portion is fixedly disposed at both ends of the scraper drum, and the driving mechanism is suitable for being transmission-connected with the support portion at either end so as to realize driving the anti-entanglement member to rotate through the support portion.

[0008] Optionally, the driving mechanism includes a power component and a transmission component. The transmission component has an input end, a first output end, and a second output end. Among them, the input end is connected to the power component, the first output end is meshed or in frictional engagement with the support portion located at one end of the scraping cylinder, and the second output end is connected to the roller brush.

[0009] Optionally, the power component is a driving motor, and the transmission component is a reduction gearbox. The reduction gearbox has the first output end and the second output end; among them, the first output end includes a first power output shaft, and a first friction member is fixedly arranged on the first power output shaft. A frictional engagement is established between the first power output shaft and the anti-tangling member through the first friction member. The second output end includes a second power output shaft fixedly connected to the roller brush.

[0010] Optionally, the support portion is a support ring fixedly arranged at both ends of the scraping cylinder, and an L-shaped ring groove is formed inside the support ring; a passive rotating shaft is further arranged on the housing of the reduction gearbox. The passive rotating shaft is rotatably arranged on the outer wall of the housing, and the passive rotating shaft and the first power output shaft are internally supported on the inner peripheral wall of the L-shaped ring groove; a second friction member is fixedly arranged on the passive rotating shaft, and a frictional engagement is established between the support portion and the passive rotating shaft through the second friction member.

[0011] Optionally, the first power output shaft and the passive rotating shaft are symmetrically distributed along the radial direction of the support portion.

[0012] Optionally, the second power output shaft is located between the first power output shaft and the passive rotating shaft, and a connecting shaft adapted to be connected to the second power output shaft is provided at one end of the roller brush body close to the driving mechanism.

[0013] Optionally, the first friction member and the second friction member are respectively a friction plate or a soft rubber sleeve.

[0014] Optionally, a primary gear, a secondary gear, and a final gear are sequentially arranged in the reduction gearbox. Among them, the primary gear is fixedly arranged on the output shaft of the driving motor, the secondary gear is meshed between the primary gear and the final gear, the first power output shaft is formed on the primary gear, and the second power output shaft is formed on the final gear.

[0015] Optionally, the connecting shaft is a non-circular shaft, and a connecting hole adapted to be inserted and matched with the connecting shaft is formed inside the second power output shaft. The connecting hole is a non-circular hole matching the outer peripheral shape of the connecting shaft.

[0016] In a second aspect, the present invention further provides a cleaning device, including a body and the above-mentioned roller brush assembly installed on the body.

[0017] The present invention has the following advantages:

[0018] The roller brush structure provided by the present invention is provided with an anti-entanglement member outside the roller brush. The anti-entanglement member includes a scraper cylinder eccentrically sleeved outside the roller brush body. The scraper cylinder includes a plurality of scraper strips spaced along the circumferential direction. An opening is formed between two adjacent scraper strips for the brush strips of the roller brush to extend out. The roller brush and the anti-entanglement member rotate in the same direction and at the same angular velocity under the drive of the driving mechanism. Since the roller brush and the anti-entanglement member are eccentrically arranged, the scraper strip will form a root close to the distal end of the scraper strip and an end close to the proximal end of the scraper strip. During the rotation of the roller brush and the scraper cylinder, the brush strip can switch between a root close to the distal end of the scraper strip and an end close to the proximal end of the scraper strip. When the bristles rotate to the distal end along with the roller brush body, at this time, the gap distance between the roller brush body and the scraper cylinder is the shortest, the scraper strip is in a position close to the root of the bristles, and the scraper strip begins to peel off the hair entangled on the bristles. When the bristles rotate toward the proximal end along with the roller brush body, the scraper bar moves from the root position of the bristles to the position close to the end, and the scraper bar can gradually push the hair entangled on the brush bar outward from the root position of the bristles to the end. When the bristles rotate to the distal end along with the roller brush body, the gap between the roller brush body and the scraper barrel is the farthest, and when the scraper bar moves to the position close to the end of the bristles, the hair on the bristles can be peeled off, thereby quickly and efficiently removing the hair entangled on the brush bar, reducing the entanglement of the hair on the roller brush, improving the cleaning effect of the roller brush and the service life of the machine, and effectively solving the problem of hair entanglement in the roller brush in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of a roller brush assembly in an embodiment is shown;

[0021] Figure 2 A partial cross-sectional isometric view of a roller brush assembly in an embodiment is shown;

[0022] Figure 3 A schematic diagram of the structure of the driving mechanism in the embodiment is shown;

[0023] Figure 4 A schematic diagram of the structure of the roller brush in the embodiment is shown;

[0024] Figure 5 A schematic diagram of the structure of the anti-entanglement member in the embodiment is shown;

[0025] Figure 6 shows Figure 1 a cross-sectional view of;

[0026] Figure 7 shows Figure 6 a partially enlarged view of;

[0027] Description of reference numerals:

[0028] 1. Rotating brush; 11. Rotating brush body; 111. Connecting shaft; 12. Brush strip;

[0029] 2. Anti-tangling member; 21. Scraping strip; 210. Opening; 211. Hair-scraping edge; 22. Support portion; 221. Annular peripheral wall; 222. Annular end wall;

[0030] 3. Driving mechanism; 31. Power component; 32. Transmission component; 321. Secondary gear; 3211. First power output shaft; 322. Final gear; 3221. Second power output shaft; 32211. Connecting hole; 323. Passive rotating shaft; 324. First friction member. Detailed implementation manners

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Embodiment 1

[0036] As Figures 1 to 7 shown, this embodiment provides a roller brush assembly, including: a roller brush 1, an anti-tangling member 2, and a driving mechanism 3. The roller brush 1 includes a roller brush main body 11 and a plurality of brush strips 12 circumferentially spaced on the outer peripheral wall of the roller brush main body 11. The anti-tangling member 2 includes a scraping cylinder eccentrically sleeved outside the roller brush main body 11, and the brush cylinder is non-concentric with the roller brush main body 11. The scraping cylinder includes a plurality of scraping strips 21 circumferentially spaced, and an opening 210 for the brush strip 12 to extend out is formed between two adjacent scraping strips 21. The extended brush strip 12 can clean dust, paper scraps, dirt, etc. on the ground. The driving mechanism 3 is adapted to drive the roller brush 1 and the anti-tangling member 2 to rotate in the same direction and at the same angular velocity. During the rotation of the roller brush 1 and the scraping cylinder, the brush strip 12 can switch between a position where the root is close to the distal end of the scraping strip 21 and a position where the end is close to the proximal end of the scraping strip 21, and the scraping strip 21 can strip the hair wound on the brush strip 12 during the switching process of the brush strip 12.

[0037] In the above solution, since the scraping cylinder and the roller brush main body 11 are eccentrically arranged non-concentrically and rotate in the same direction and at the same angular velocity, each brush strip 12 can cyclically switch and rotate between the distal end and the proximal end. It should be noted that the "proximal end" refers to the position where the distance between the end edge of the brush strip 12 and the scraping strip 21 is the shortest, and the "distal end" refers to the position where the distance between the end edge of the brush strip 12 and the scraping strip 21 is the farthest, that is, the position where the root of the brush strip 12 is close to the scraping strip 21. During the rotation of the roller brush 1 and the anti-tangling member 2 from the distal end to the proximal end, the distance between the end edge of the scraping strip 21 and the hair-scraping edge 211 of the scraping strip 21 gradually decreases, and the gap between the scraping cylinder and the roller brush main body 11 gradually increases. During the rotation of the roller brush 1 and the anti-tangling member 2 from the proximal end to the distal end, the distance between the end edge of the scraping strip 21 and the hair-scraping edge 211 of the scraping strip 21 gradually increases, and the gap between the scraping cylinder and the roller brush main body 11 gradually decreases.

[0038] It can be understood that when the bristles rotate to the distal end with the rotation of the roller brush body 11, at this time, the gap distance between the roller brush body 11 and the scraping cylinder is the shortest, the scraping strip 21 is at a position close to the root of the bristles, and the scraping strip 21 begins to strip the hair wound on the bristles. When the bristles rotate towards the proximal end with the roller brush body 11, the scraping strip 21 moves from the position at the root of the bristles to a position close to the end, and the scraping strip 21 can gradually push the hair wound on the brush strip 12 outwards from the root to the end of the bristles. When the bristles rotate to the distal end with the roller brush body 11, the gap distance between the roller brush body 11 and the scraping cylinder is the farthest. When the scraping strip 21 moves to a position close to the end of the bristles, it can strip the hair on the bristles, so as to quickly and efficiently remove the hair wound on the brush strip 12, reduce the hair winding on the roller brush 1, improve the cleaning effect of the roller brush 1 and the service life of the machine, and effectively solve the problem that the roller brush 1 in the prior art is prone to hair winding.

[0039] It should be explained that in this embodiment, only when the roller brush 1 and the anti-winding member 2 move in the same direction and have the same angular velocity, can it be ensured that when the two rotate, each brush strip 12 on the roller brush 1 is always in a state of passing through the opening 210 of the anti-winding member 2 during the rotation process. Since the scraping cylinder of the roller brush 1 and the anti-winding member 2 are sleeved and non-concentrically arranged, that is, the rotation axes of the roller brush 1 and the anti-winding member 2 are not on the same straight line, so that the roller brush 1 and the anti-winding member 2 can generate a proximal end and a distal end during the rotation process.

[0040] In some embodiments of this embodiment, the number of the scraping strips 21 is the same as the number of the brush strips 12. With such a design, it can be ensured that the number of the openings 210 formed between the scraping strips 21 is the same as the number of the brush strips 12, so that the multiple brush strips 12 can pass through the multiple openings 210 one by one. The scraping strip 21 is of an arc-shaped plate structure, and the scraping strip 21 is adapted to extend along the length direction of the roller brush 1. The long strip edges on both sides of the scraping strip 21 are formed into scraping edges 211 suitable for stripping hair.

[0041] In a more preferred embodiment of the above embodiment, the cross section of the scraping strip 21 is fan-shaped, and the two long strip end faces of the scraping strip 21 are inclined surfaces that gradually incline outwards from the inside to the two outsides, so that the scraping strip 21 forms a pointed scraping edge 211, improving the hair stripping effect.

[0042] In one implementation of this embodiment, the maximum gap distance between the roller brush body 11 and the scraper drum at the asymptotic end is set to D1, and the extension length of the brush strip 12 in the radial direction of the roller brush body 11 is D2, D2 ≥ D1. With such a design, the brush strip 12 is always in a state of passing through the anti-entanglement member 2 regardless of the rotation position, ensuring that the brush strip 12 can clean the ground, and preventing the brush strip 12 from being rolled into the scraper drum during the rotation of the roller brush body 11, thereby affecting the normal use of the roller brush 1.

[0043] In a more preferred embodiment of the above embodiment, D2=D1, that is, when the brush strip 12 is at the asymptotic end, the end edge of the brush strip 12 and the outer peripheral edge of the scraper strip 21 are on the same circumference. Such a design can improve the scraping effect of the scraper strip 21 on hair.

[0044] Optionally, in one implementation of this embodiment, a plurality of brush strips 12 are evenly spaced along the circumference of the roller brush body 11 and arranged on the outer surface of the roller brush body 11, and each brush strip 12 extends along the axial direction of the roller brush body 11. The corresponding plurality of scraper strips 21 are evenly spaced along the circumferential direction of the scraper barrel. In this implementation, since the brush strips 12 are evenly spaced along the circumference of the roller brush body 11, it can be ensured that the force of the roller brush 1 is balanced when it rotates, so that the cleaning effect of the roller brush 1 can be uniform and reliable.

[0045] For example, see the attached Figure 1 In this embodiment, there are five brush strips 12, which are arranged at an angle of 72° and at equal intervals on the periphery of the roller brush body 11. There are also five scraping strips 21. Of course, the number of the brush strips 12 is not limited in this embodiment.

[0046] Optionally, in one implementation of the present embodiment, the plurality of brush strips 12 include rubber strips and / or bristles. Exemplarily, the brush may be formed by a plurality of bristles arranged closely in a linear manner. When the brush strips 12 are bristles, the debris, dust, and dry garbage on the ground can be swept away. Alternatively, the brush strips 12 are rib structures made of rubber, silicone, or plastic. Of course, the brush strips 12 may also be made of foam or sponge. When the brush strips 12 are rubber brushes, the dirt that is difficult to clean and adheres to the ground can be cleaned away, and the cleaning power for the dirt is better. Of course, in one implementation of the present embodiment, the rubber strips and bristles are alternately distributed along the circumference of the roller brush body 11. The bristles are used to clean the ground, and the rubber strips are used to peel off the hair wrapped around the bristles and / or the brush barrel.

[0047] In one implementation of this embodiment, the anti-tangling member 2 further includes a support portion 22. The support portion 22 is fixedly arranged at both ends of the scraping cylinder. The driving mechanism 3 is adapted to be in transmission connection with the support portion 22 at any one end to drive the anti-tangling member 2 to rotate through the support portion 22. On the one hand, the support portion 22 serves to support and fix the scraping strip 21. On the other hand, it serves as a transmission function to cooperate with the driving mechanism 3 to drive the entire anti-tangling member 2 to rotate.

[0048] In this embodiment, both the scraping cylinder and the support portion 22 of the anti-tangling member 2 are made of hard materials.

[0049] Such as Figures 1 to 3 、 Figure 6 、 Figure 7 As shown, in one implementation of this embodiment, the driving mechanism 3 includes a power component 31 and a transmission component 32. The transmission component 32 has an input end, a first output end, and a second output end. Among them, the input end is connected to the power component 31, the first output end is meshed or in frictional cooperation with the support portion 22 located at one end of the scraping cylinder, and the second output end is connected to the rolling brush 1. By arranging the above-mentioned transmission component 32, it can be realized that the rolling brush 1 and the anti-tangling member 2 are driven by one power component 31 to move in the same direction and at the same angular velocity, simplifying the driving mechanism 3 and saving control costs. Compared with driving the rolling brush 1 and the anti-tangling member 2 to rotate respectively by two power components 31, the consistency and synchronism of the movements of the rolling brush 1 and the anti-tangling member 2 are higher, avoiding the situation that the angular velocities of the two are inconsistent. When the rolling brush 1 rotates, the brush strip 12 will hit the anti-tangling member 2, generating noise and affecting the user experience.

[0050] On the basis of the above implementation, the power component 31 is a driving motor, and the transmission component 32 is a reduction box. The reduction box has the first output end and the second output end. The first output end includes a first power output shaft 3211. A first friction member 324 is fixedly arranged on the first power output shaft 3211. A frictional cooperation is established between the first power output shaft 3211 and the anti-tangling member 2 through the first friction member 324. The second output end includes a second power output shaft 3221 fixedly connected to the rolling brush 1.

[0051] Specifically, the first friction member 324 can be a friction plate or a soft rubber sleeve, and the friction plate or the soft rubber sleeve is fixedly arranged at the end of the first power output shaft 3211. Preferably, the first friction member 324 is a soft rubber sleeve wrapped around the end of the first power output shaft 3211. The first power output shaft 3211 is in frictional engagement with the support portion 22 at one end of the scraping cylinder through the first friction member 324, and the support portion 22 at the other end of the scraping cylinder is rotatably arranged on the body of the cleaning device. With such a design, when the power component 31 drives the first power output shaft 3211 to rotate, the static friction force generated between the first friction member 324 and the support portion 22 serves as the transmission force, enabling the support portion 22 to be driven to rotate.

[0052] In an implementation manner of this embodiment, the support portion 22 is a support ring fixedly arranged at both ends of the scraping cylinder, and an L-shaped ring groove is formed inside the support ring. Optionally, the support portion 22 includes an annular peripheral wall 221 and an annular end wall 222 that are vertically connected. Among them, the annular peripheral wall 221 is a cylindrical structure extending along the axial direction of the scraping cylinder, and the diameter of the annular peripheral wall 221 is greater than the diameter of the scraping cylinder. The annular end wall 222 is formed by folding and extending from one edge of the annular peripheral wall 221 towards the center. The outer ring edge of the annular end wall 222 is connected to the annular peripheral wall 221, and the inner ring edge of the annular end wall 222 is connected to the scraping cylinder. The L-shaped ring groove is formed between the annular peripheral wall 221 and the annular end wall 222.

[0053] In an implementation manner of this embodiment, a passive rotating shaft 323 is further arranged on the housing of the reduction gearbox, and the passive rotating shaft 323 is rotatably arranged on the outer wall of the housing. The passive rotating shaft 323 and the first power output shaft 3211 are internally supported on the inner peripheral wall of the L-shaped ring groove. The passive rotating shaft 323 can rotate on its own. The main function of the passive rotating shaft 323 is to cooperate with the first power output shaft 3211 to support the support portion 22 of the anti-tangling member 2, thereby realizing the support of the entire anti-tangling member 2. It should be noted that the passive rotating shaft 323 is arranged outside the reduction gearbox and is not connected to the internal gears and other structures of the reduction gearbox.

[0054] On the basis of the above implementation manner, in a preferred implementation manner, a second friction member is fixedly arranged on the passive rotating shaft 323, and a frictional engagement is established between the support portion 22 and the passive rotating shaft 323 through the second friction member. When the support portion 22 rotates driven by the first power output shaft 3211, the passive rotating shaft 323 can rotate on its own under the driving of the static friction force formed between the second friction member and the support portion 22.

[0055] Optionally, the second friction member is a friction plate or a soft rubber sleeve. Preferably, the second friction member is a soft rubber sleeve wrapped around the end of the second power output shaft 3221.

[0056] Based on the above embodiments, in a preferred embodiment, a friction plate or a soft rubber sleeve is provided on the inner peripheral wall of the support portion 22. With such a design, the static friction between the support portion 22 and the first power output shaft 3211 and the passive rotation shaft 323 can be increased, making the transmission between the drive mechanism 3 and the anti-tangling member 2 more stable and reliable.

[0057] Optionally, the first power output shaft 3211 and the passive rotation shaft 323 are symmetrically distributed along the radial direction of the support portion 22. The first power output shaft 3211 and the passive rotation shaft 323 are located on a circumference with the central axis of the anti-tangling member 2 as the center and a radius of R, and the R is equal to the radius of the annular peripheral wall 221 of the support portion 22. By adopting the above design, the supporting effect of the first power output shaft 3211 and the passive rotation shaft 323 on the support portion 22 can be further improved, and further the transmission between the drive mechanism 3 and the anti-tangling member 2 is more stable and reliable.

[0058] It should be explained that in this embodiment, the first power output shaft 3211 and the passive rotation shaft 323 jointly act to support on the inner peripheral wall of the support portion 22 to realize the installation and fixation of one end of the anti-tangling member 2 close to the drive mechanism 3. The first power output shaft 3211 and the passive rotation shaft 323 are similar to the inner support jaws in the prior art, and the first power output shaft 3211 and the passive rotation shaft 323 outwardly support the inner peripheral wall surface of the support portion 22. Since a soft rubber layer is provided on the outer peripheral walls of the first power output shaft 3211 and the passive rotation shaft 323, when the support portion 22 is sleeved on the first power output shaft 3211 and the passive rotation shaft 323, the soft rubber layer is compressed, and its reaction force acts inside the support portion 22 to realize the support and fixation of the transmission member.

[0059] During operation, the first power output shaft 3211 rotates and outputs force, the support portion 22 is driven to rotate by the first power output shaft 3211, and the passive rotation shaft 323 is then driven to rotate by the support portion 22. These three are similar to the cooperation of three gears, except that the transmitted force is the static friction after the soft rubber is compressed, rather than gear transmission. Since the support portion 22 is a part of the anti-tangling member 2, when the support portion 22 rotates, the anti-tangling member 2 will also rotate accordingly. In this embodiment, the anti-tangling member 2 is driven to rotate by using static friction as the transmission force. Compared with driving the anti-tangling member 2 to rotate through the cooperation of planetary gears, the structure of the drive mechanism 3 can be further simplified, making the entire roller brush assembly structure more compact, occupying less space, and at the same time ensuring that the angular velocities of the anti-tangling member 2 and the roller brush 1 during rotation are consistent.

[0060] Optionally, the second power output shaft 3221 is located between the first power output shaft 3211 and the passive rotating shaft 323. A connecting shaft 111 adapted to be connected to the second power output shaft 3221 is provided at one end of the brush body 11 close to the driving mechanism 3. The second power output shaft 3221 is located on the central axis of the brush body 11, and the central axis of the anti-tangling member 2 is arranged non-coaxially with the central axis of the brush body 11.

[0061] Optionally, a primary gear, a secondary gear 321, and a final gear 322 are sequentially arranged in the reduction box. Among them, the primary gear is fixedly arranged on the output shaft of the driving motor, the secondary gear 321 is engaged between the primary gear and the final gear 322, the first power output shaft 3211 is formed on the primary gear, and the second power output shaft 3221 is formed on the final gear 322. The rotation directions of the first power output shaft 3211 and the second power output shaft 3221 are opposite to each other. Through the frictional cooperation between the first power output shaft 3211 and the support portion 22, the rotation direction of the support portion 22 is opposite to that of the first power output shaft 3211, so that the rotation directions of the anti-tangling member 2 and the brush 1 are the same.

[0062] Optionally, the connecting shaft 111 is a non-circular shaft, and a connecting hole 32211 adapted to be inserted and matched with the connecting shaft 111 is formed in the second power output shaft 3221. The connecting hole 32211 is a non-circular hole matching the outer peripheral shape of the connecting shaft 111. Optionally, the second power output shaft 3221 can be configured as a hollow sleeve structure. Through the cooperation of the non-standard connecting shaft 111 and the connecting hole 32211, the connecting shaft 111 and the connecting hole 32211 are limited in the circumferential direction, so that the connecting shaft 111 drives the brush 1 to rotate synchronously when rotating. The connection by insertion is convenient for disassembly and assembly.

[0063] The specific structure and working principle of the brush 1 mechanism provided in this embodiment are as follows:

[0064] The first power driving shaft of the power mechanism gives the output force for the anti-tangling member 2 to rotate self, and the second power output shaft 3221 gives the output force for the rotary brush 1 to rotate. The first power driving shaft and the passive rotating shaft 323 respectively support the supporting portion 22 from the inside to the outside in the radial direction of the anti-tangling member 2, and the first power driving shaft outputs power to make the anti-tangling member 2 rotate. Both the anti-tangling member 2 and the rotary brush 1 can rotate self around their own central axes under the drive of the driving mechanism 3. One end of the anti-tangling member 2 is fixed on the first power output shaft 3211 of the reduction gearbox and the passive rotating shaft 323. Among them, the first power output shaft 3211 is arranged on the penultimate stage gear of the reduction gearbox, and the second power output shaft 3221 is arranged on the final stage gear 322. The first power output shaft 3211 and the second power output shaft 3221 are driven to rotate by the same driving motor, and the first power output shaft 3211 and the second power output shaft 3221 respectively drive the anti-tangling member 2 and the rotary brush 1 to rotate. The other end of the anti-tangling member 2 and the other end of the rotary brush 1 are installed in the inner cavity of the whole machine. A gearbox connected to the rotary brush 1 and the anti-tangling member 2 is arranged in the inner cavity, and the anti-tangling member 2 and the rotary brush 1 are clamped and fixed from both ends left and right. In this embodiment, the anti-tangling member 2 and the rotary brush 1 are eccentrically arranged and rotate self at the same angular velocity. In this way, a distal end and a proximal end will be generated during the self-rotation process of the two. When each scraping strip 21 rotates to the proximal end, the anti-tangling member 2 can hang and drop the hair and sundries wound on the scraping strip 21.

[0065] Embodiment 2

[0066] This embodiment also provides a cleaning device, including a fuselage and the above-mentioned rotary brush assembly installed on the fuselage.

[0067] Since the cleaning device includes the rotary brush assembly in the above embodiment, hair entanglement can be reduced.

[0068] Specifically, the cleaning device can be a floor sweeping robot or a vacuum cleaner. Preferably, the cleaning device is a floor sweeping robot.

[0069] Optionally, the driving mechanism 3 of the rotary brush assembly can be installed on the fuselage. One end of the rotary brush 1 and the anti-tangling member 2 is connected to the driving mechanism 3, and one end of the rotary brush 1 and the anti-tangling member 2 is rotatably installed on the fuselage.

[0070] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A roller brush assembly, characterized in that, Comprising: A rotary brush (1), including a rotary brush body (11) and a plurality of brush strips (12) circumferentially spaced on the outer peripheral wall of the rotary brush body (11); An anti-tangling member (2), including a scraping cylinder sleeved outside the rotary brush body (11), the scraping cylinder is eccentrically arranged with the rotary brush body (11), the scraping cylinder includes a plurality of scraping strips (21) circumferentially spaced, and an opening (210) for the brush strip (12) to extend is formed between two adjacent scraping strips (21); A driving mechanism (3), adapted to drive the rotary brush (1) and the anti-tangling member (2) to rotate in the same direction and at the same angular velocity. During the rotation of the rotary brush (1) and the scraping cylinder, the brush strip (12) can switch between a position where the root is close to the distal end of the scraping strip (21) and a position where the end is close to the proximal end of the scraping strip (21), so that the scraping strip (21) can strip the hair wound on the brush strip (12); Wherein, the "proximal end" refers to the position where the distance between the end edge of the brush strip (12) and the scraping strip (21) is the shortest, and the "distal end" refers to the position where the distance between the end edge of the brush strip ((12) and the scraping strip (21) is the farthest.

2. The roller brush assembly according to claim 1, characterized in that, The number of the scraping strips (21) is the same as that of the brush strips (12), the scraping strips (21) are arc-shaped plate structures, the scraping strips (21) are adapted to extend along the length direction of the rotary brush (1), and the long strip edges on both sides of the scraping strips (21) are formed into scraping edges (211) adapted to strip hair.

3. The roller brush assembly according to claim 1, characterized in that Set the maximum clearance distance between the rotary brush body (11) and the scraping cylinder at the gradually proximal end as D1, and the extension length of the brush strip (12) in the radial direction of the rotary brush body (11) as D2, D2≥D1.

4. The roller brush assembly according to any one of claims 1-3, characterized in that, The anti-tangling member (2) further includes: A support portion (22), fixedly arranged at both ends of the scraping cylinder, and the driving mechanism (3) is adapted to be in transmission connection with the support portion (22) at any one end to realize driving the anti-tangling member (2) to rotate through the support portion (22).

5. The roller brush assembly according to claim 4, characterized in that, The driving mechanism (3) includes: A power component (31); A transmission component (32), the transmission component (32) has an input end, a first output end and a second output end. Wherein, the input end is connected to the power component (31), the first output end is meshed or in frictional cooperation with the support portion (22) at one end of the scraping cylinder, and the second output end is connected to the rotary brush (1).

6. The roller brush assembly according to claim 5, characterized in that The power component (31) is a driving motor, and the transmission component (32) is a reduction gearbox, and the reduction gearbox has the first output end and the second output end; Wherein, the first output end includes a first power output shaft (3211), a first friction member (324) is fixedly arranged on the first power output shaft (3211), and a frictional cooperation is established between the first power output shaft (3211) and the anti-tangling member (2) through the first friction member (324), and the second output end includes a second power output shaft (3221) fixedly connected to the rotary brush (1).

7. The roller brush assembly according to claim 6, characterized in that, The support portion (22) is a support ring fixedly arranged at both ends of the scraping cylinder, and an L-shaped ring groove is formed in the support ring; A passive rotating shaft (323) is further provided on the housing of the speed reducer. The passive rotating shaft (323) is rotatably provided on the outer wall of the housing. The passive rotating shaft (323) and the first power output shaft (3211) are internally supported on the inner peripheral wall of the L-shaped annular groove; A second friction member is fixedly provided on the passive rotating shaft (323). A frictional fit is established between the support portion (22) and the passive rotating shaft (323) through the second friction member.

8. The roller brush assembly according to claim 7, wherein, The first power output shaft (3211) and the passive rotating shaft (323) are symmetrically distributed along the radial direction of the support portion (22); and / or, the second power output shaft (3221) is located between the first power output shaft (3211) and the passive rotating shaft (323). A connecting shaft (111) adapted to be connected to the second power output shaft (3221) is provided at one end of the brush body (11) close to the driving mechanism (3); and / or, the first friction member (324) and the second friction member are respectively a friction plate or a soft rubber sleeve.

9. The roller brush assembly according to claim 6, wherein, A primary gear, a secondary gear (321), and a final gear (322) are sequentially arranged in the speed reducer. Among them, the primary gear is fixedly provided on the output shaft of the driving motor. The secondary gear (321) is engaged between the primary gear and the final gear (322). A first power output shaft (3211) is formed on the primary gear, and a second power output shaft (3221) is formed on the final gear (322).

10. The roller brush assembly according to claim 8, wherein, The connecting shaft (111) is a non-circular shaft. A connecting hole (32211) adapted to be inserted and matched with the connecting shaft (111) is formed in the second power output shaft (3221). The connecting hole (32211) is a non-circular hole matching the outer peripheral shape of the connecting shaft (111).

11. A cleaning device, characterized in that, It includes a fuselage and the brush assembly according to any one of the above claims 1-10 mounted to the fuselage.

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