Roller brush assembly, cleaning apparatus and cleaning system

Abstract

A roller brush assembly (151), a cleaning apparatus (10) and a cleaning system. The roller brush assembly (151) comprises at least two roller brushes (1511), wherein each roller brush (1511) comprises a connecting end and a free end; the free ends of the at least two roller brushes (1511) are oppositely arranged spaced apart from each other; and the extension directions of rotating shafts of two oppositely arranged roller brushes (1511) intersect, thereby improving the cleaning effect of the roller brush assembly (151).

Description

Rolling brush assembly, cleaning device and cleaning system

[0001] Cross-reference to Related Applications

[0002] The present disclosure claims priority to Chinese Patent Application Nos. 202421529917.6, 202410869770.3 and 202421529942.4, filed on June 28, 2024, the disclosures of which are hereby incorporated by reference in their entirety as part of the present disclosure. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of cleaning devices, and in particular, to a rolling brush assembly, a cleaning device and a cleaning system. BACKGROUND

[0004] With the development of modern society, in order to save time and maintain household hygiene, more and more people begin to purchase cleaning devices in order to clean household hygiene in time and conveniently. Cleaning devices can automatically complete the cleaning work of the ground in the room by virtue of certain artificial intelligence.

[0005] The cleaning device in the related art is mainly a sweeping robot. The cleaning effect is an important performance index of the sweeping robot during the execution of the cleaning task.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art.

[0007] SUMMARY

[0008] The present disclosure aims to provide a rolling brush assembly, a cleaning device and a cleaning system.

[0009] According to one aspect of the present disclosure, a rolling brush assembly is provided, comprising:

[0010] At least two rolling brushes, each of which comprises a connecting end and a free end, the free ends of the at least two rolling brushes are oppositely spaced, and the extension directions of the rotation shafts of the two oppositely arranged rolling brushes intersect.

[0011] In an exemplary embodiment of the present disclosure, the rolling brush assembly further comprises:

[0012] A rolling brush cabin is provided with a dust collecting port for communicating with a dust box, and the free ends of the two oppositely arranged rolling brushes are obliquely arranged towards the dust collecting port.

[0013] In an exemplary embodiment of the present disclosure, the rolling brush rotates from a first side to a second side of the rolling brush cabin at the bottom of the rolling brush assembly, and the dust collection port is arranged at the second side.

[0014] In an exemplary embodiment of the present disclosure, the rolling brush assembly further comprises:

[0015] A support, the rolling brush is arranged on the support, one end of the support is connected with the driving device, and the other end is inclined towards the dust collection port.

[0016] In an exemplary embodiment of the present disclosure, the included angle between the rotation shafts of the two oppositely arranged rolling brushes is 140°-178°.

[0017] In an exemplary embodiment of the present disclosure, the rotation speeds of the two oppositely arranged rolling brushes are different.

[0018] In an exemplary embodiment of the present disclosure, the rotation speed ratio of the two oppositely arranged rolling brushes is 1:1.05-1:1.2.

[0019] In an exemplary embodiment of the present disclosure, the rotation speed difference of the two oppositely arranged rolling brushes is 50r / min-350r / min.

[0020] In an exemplary embodiment of the present disclosure, the rotation directions of the two oppositely arranged rolling brushes are the same.

[0021] In an exemplary embodiment of the present disclosure, the rolling brush assembly further comprises:

[0022] A blocking piece, at least part of the blocking piece is located between the two oppositely arranged rolling brushes.

[0023] In an exemplary embodiment of the present disclosure, the rolling brush assembly further comprises:

[0024] A rolling brush cabin corresponding to the at least two rolling brushes, and the blocking piece is arranged on the inner wall of the rolling brush cabin.

[0025] In an exemplary embodiment of the present disclosure, the rolling brush cabin is provided with a dust collection port for communicating with a dust box, the blocking piece is arranged on the inner wall of the rolling brush cabin away from the dust collection port, and is arranged opposite to the dust collection port.

[0026] In an exemplary embodiment of the present disclosure, the rolling brush rotates from a first side to a second side of the rolling brush cabin at the bottom of the rolling brush assembly, and the blocking piece is arranged at the first side.

[0027] In an example embodiment of the present disclosure, the blocking member (8) comprises a connecting section and a blocking section, the connecting section is connected to the inner wall of the rolling brush cabin, and the blocking section is connected to the connecting section, the extending direction of the blocking section is different from the extending direction of the connecting section.

[0028] In an example embodiment of the present disclosure, the rolling brush assembly further comprises:

[0029] A support, the support comprises a sleeve joint rod, and the rolling brush is sleeved on the sleeve joint rod.

[0030] In an example embodiment of the present disclosure, the sleeve joint rod comprises an inner rod and an outer rod, the outer rod is sleeved on the inner rod and rotationally connected to the inner rod.

[0031] In an example embodiment of the present disclosure, a bearing is sleeved on the inner rod, and the outer rod is rotationally connected to the inner rod through the bearing.

[0032] In an example embodiment of the present disclosure, a sleeve joint hole is arranged on the rolling brush, and the rolling brush is sleeved on the sleeve joint rod through the sleeve joint hole.

[0033] In an example embodiment of the present disclosure, the shapes of the sleeve joint holes on the two oppositely arranged rolling brushes are different, and the shapes of the sleeve joint holes on the rolling brushes match the shapes of the corresponding sleeve joint rods.

[0034] In an example embodiment of the present disclosure, the rolling brush comprises a shaft rod and a cleaning member arranged on the shaft rod, the cleaning member comprises a blade and / or a tuft.

[0035] In an example embodiment of the present disclosure, when the cleaning member comprises a blade, the shaft rod and the blade are integrally formed.

[0036] In an example embodiment of the present disclosure, the shaft rod and the blade are made by double-material injection molding, in-mold injection molding, liquid injection molding or oil pressure forming.

[0037] In an example embodiment of the present disclosure, when the cleaning member comprises a blade and a tuft, the blade is a plurality of blades, the plurality of blades are arranged along the circumference of the shaft rod, and the tuft is arranged between adjacent blades in the circumferential direction of the shaft rod.

[0038] In an example embodiment of the present disclosure, when the cleaning member comprises a tuft, the tuft comprises a fixed end and a movable end, the fixed end is connected to the shaft rod, the movable end extends away from the shaft rod, and is inclined towards the free end of the rolling brush.

[0039] According to a second aspect of the present disclosure, there is provided a cleaning apparatus comprising a roller brush assembly as described above.

[0040] According to a third aspect of the present disclosure, there is provided a cleaning system comprising:

[0041] a cleaning apparatus as described above;

[0042] a base station for parking the cleaning apparatus.

[0043] The roller brush assembly provided by the present disclosure effectively improves the stability during cleaning by providing at least two roller brushes, compared to providing only one roller brush. By providing a gap between the free ends of the two roller brushes, interference or jamming of debris between the two oppositely arranged roller brushes is avoided. By making the extension directions of the rotation shafts of the two roller brushes intersect, i.e. the two roller brushes are arranged in a V shape, it is beneficial to collect the garbage on the ground to the middle position, and it is also beneficial to push the hair wound on the roller brushes to the middle and fall off into the dust box, thereby improving the cleaning effect.

[0044] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained from these drawings by those of ordinary skill in the art without creative labor.

[0046] FIG. 1 is a front view of a cleaning apparatus according to an embodiment of the present disclosure.

[0047] FIG. 2 is a back view of a cleaning apparatus according to an embodiment of the present disclosure.

[0048] FIG. 3 is a schematic view of a roller brush assembly according to an embodiment of the present disclosure.

[0049] FIG. 4 is a schematic view of another perspective view of a roller brush assembly according to an embodiment of the present disclosure.

[0050] FIG. 5 is a schematic view of a first roller brush and a second roller brush according to an embodiment of the present disclosure.

[0051] FIG. 6 is a schematic view of a first roller brush according to an embodiment of the present disclosure.

[0052] FIG. 7 is a schematic view of a second roller brush according to an embodiment of the present disclosure.

[0053] Figure 8 is a schematic view of the extension direction of the rotation shafts of the first and second rolling brushes intersecting each other according to an embodiment of the present disclosure.

[0054] Figure 9 is a schematic view of the extension direction of the sleeve connecting rods on the first and second supports intersecting each other according to an embodiment of the present disclosure.

[0055] Figure 10 is a schematic view of the driving of the first and second rolling brushes by the driving device according to an embodiment of the present disclosure.

[0056] Figure 11 is a schematic view of the first transmission assembly according to an embodiment of the present disclosure.

[0057] Figure 12 is a schematic view of the second transmission assembly according to an embodiment of the present disclosure.

[0058] Figure 13 is a schematic view of the driving of the first and second rolling brushes by the first and second driving devices according to an embodiment of the present disclosure.

[0059] Figure 14 is a schematic view of the end face shape of the first and second rolling brushes according to an embodiment of the present disclosure.

[0060] Figure 15 is a schematic view of the end face shape of the first and second rolling brushes according to another embodiment of the present disclosure.

[0061] Figure 16 is a schematic view of the end face shape of the first and second rolling brushes according to yet another embodiment of the present disclosure.

[0062] Figure 17 is a schematic view of the first shaft rod according to an embodiment of the present disclosure.

[0063] Figure 18 is a schematic view of the second shaft rod according to an embodiment of the present disclosure.

[0064] Figure 19 is a schematic view of the first and second rolling brushes provided with a blocking member according to an embodiment of the present disclosure.

[0065] Figure 20 is a schematic view of the rolling brush cabin provided with a blocking member according to an embodiment of the present disclosure.

[0066] Figure 21 is a schematic view of the blocking member according to an embodiment of the present disclosure.

[0067] Figure 22 is a schematic view of the first rolling brush and the first support according to an embodiment of the present disclosure.

[0068] Figure 23 is a schematic view of the first support according to an embodiment of the present disclosure.

[0069] Figure 24 is an exploded view of the first support according to an embodiment of the present disclosure.

[0070] Fig. 25 is a schematic view of a second roller brush and a second bracket according to an embodiment of the present disclosure.

[0071] Fig. 26 is a schematic view of the second bracket according to an embodiment of the present disclosure.

[0072] Fig. 27 is an exploded view of the second bracket according to an embodiment of the present disclosure.

[0073] Fig. 28 is a schematic view of a first set of interface holes on a first roller brush according to an embodiment of the present disclosure.

[0074] Fig. 29 is a schematic view of a second set of interface holes on a second roller brush according to an embodiment of the present disclosure.

[0075] Fig. 30 is a schematic view of a cleaning system according to an embodiment of the present disclosure.

[0076] Legend of reference signs:

[0077] 10, cleaning device; 11, device body; 12, driving module; 13, sensing module; 14, control module; 15, cleaning module; 16, energy module; 17, human-computer interaction module;

[0078] 121, driving wheel assembly; 122, steering wheel;

[0079] 151, roller brush assembly; 1511, roller brush; 15111, first roller brush; 151111, first shaft; 151112, first blade; 151113, first tuft; 151114, first end cover; 151115, first set of interface holes; 15112, second roller brush; 151121, second shaft; 151122, second blade; 151123, second tuft; 151124, second end cover; 151125, second set of interface holes;

[0080] 1512, roller brush cover; 15121, roller brush cabin; 15122, dust collection port;

[0081] 15131, driving device; 15132, first transmission assembly; 151321, first driving gear; 151322, first connecting gear; 151323, second connecting gear; 151324, first driven gear; 151325, fourth connecting gear; 151326, fifth connecting gear; 15133, second transmission assembly; 151331, second driven gear; 151332, third connecting gear; 151333, third driven gear; 15134, transmission rod; 15135, first driving device; 15136, second driving device;

[0082] 1514, blocking piece; 15141, connecting section; 15142, blocking section;

[0083] 1515, first support; 15151, first outer rod; 15152, first inner rod; 15153, first rubber core; 15154, first bearing; 15155, first fastener; 1516, second support; 15161, second outer rod; 15162, second inner rod; 15163, second rubber core; 15164, second bearing; 15165, second fastener;

[0084] 152, side brush; 153, cleaning head;

[0085] 20, base station. DETAILED DESCRIPTION

[0086] Example implementations are now described with reference to the drawings. Example implementations can, however, be carried out in a variety of ways, and should not be considered to be limited to the implementations described herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. Like reference numerals in different drawings denote like or similar elements, and detailed descriptions of them will be omitted.

[0087] Although relative terms such as "upper", "lower", etc. are used herein to describe one component's relationship to another component of a figure, such terms are used herein for convenience only and are not intended to limit the scope of the disclosure to only the positional relationships depicted in the examples described with respect to the figures. It is understood that if the device of the figure were turned upside down, the component described as being "on" would then be "under". When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure or that the structure is "directly" on the other structure or that the structure is "indirectly" on the other structure via another structure.

[0088] The terms "one", "a", "an", "the", and "at least one" are used to indicate that "one or more" of something is present with the understanding that a plurality is intended unless the context explicitly dictates otherwise. The term "includes" and the like means "including, but not limited to". The terms "first", "second", and "third" and the like are used merely as labels, and are not intended to impose numerical requirements on their objects.

[0089] Embodiments of the present disclosure provide a cleaning device, which can be a robot vacuum cleaner, a robot mop cleaner, a handheld robot vacuum cleaner, a handheld robot mop cleaner, or the like. As shown in FIGS. 1 and 2, the present disclosure will be exemplarily described below with a cleaning device 10 as a robot mop cleaner, which can include a device body 11, a driving module 12, a sensing module 13, a control module 14, a cleaning module 15, an energy module 16, a human-machine interaction module 17, and the like.

[0090] In some embodiments, the device body 11 is configured to move automatically along a target direction on a travel surface, which can be a surface to be cleaned by the cleaning device 10. The cleaning device 10 can be a sweeping and mopping integrated robot, and the cleaning device 10 works on a ground surface, which is the aforementioned travel surface.

[0091] In order to more clearly describe the behavior of the cleaning device 10, the following directional definitions are made: the cleaning device 10 can travel on the ground surface by various combinations of movements relative to the following three mutually perpendicular axes defined by the device body 11: a front-rear axis X, a lateral axis Y, and a central vertical axis Z. The forward driving direction along the front-rear axis X is denoted as “forward”, and the rearward driving direction along the front-rear axis X is denoted as “backward”. The cleaning device 10 can rotate about the Y axis. When the forward portion of the cleaning device 10 is tilted upward and the rearward portion is tilted downward, it is “pitched up”, and when the forward portion of the cleaning device 10 is tilted downward and the rearward portion is tilted upward, it is “pitched down”. In addition, the cleaning device 10 can rotate about the Z axis. In the forward direction of the cleaning device 10, when the cleaning device 10 is tilted to the right side of the axis, it is “turned right”, and when the cleaning device 10 is tilted to the left side of the Y axis, it is “turned left”.

[0092] In some embodiments, the driving module 12 includes a driving wheel assembly 121, and the driving module 12 can simultaneously control the left and right wheels. In order to more accurately control the movement of the machine, it is preferred that the driving module 12 includes a left driving wheel assembly and a right driving wheel assembly, respectively. The left and right driving wheel assemblies are symmetrically arranged along the lateral axis Y defined by the device body 11.

[0093] In some embodiments, as shown in FIG. 2, in order to enable the automatic cleaning device 10 to move more stably on the ground surface or have stronger movement ability, the automatic cleaning device 10 can include one or more steering wheels 122; the steering wheel 122 can be a driven wheel or a driving wheel, and its structural form includes but is not limited to a universal wheel, and the steering wheel 122 can be located in front of the driving wheel assembly 121. A driving motor provides power for the driving wheel assembly 121 and / or the steering wheel 122.

[0094] In some embodiments, the perception module 13 includes a position determining device located above the device body 11, a bumper located at the front part of the device body 11, a cliff sensor and an ultrasonic sensor located at the bottom of the device body 11, an infrared sensor, a magnetometer, an accelerometer, a gyroscope, an odometer, and the like, which provide various position information and motion state information of the device body 11 to the control module 14. For example, the front part of the device body 11 is provided with a bumper, when the driving wheel assembly propels the cleaning device 10 to walk on the ground during the cleaning process, the bumper detects one or more events (or objects) in the travel path of the cleaning device 10 via a sensor module, such as an infrared sensor, and the cleaning device 10 can control the driving structure to respond to the event (or object) by detecting the event (or object) by the bumper, such as a step, an obstacle, a wall, and the like.

[0095] In some embodiments, the control module 14 can comprehensively judge the current working state of the robot vacuum cleaner, such as climbing a step, passing a threshold, being on a carpet, being stuck at a cliff, being lifted up or down, being full of dust, being picked up, and the like, based on the distance information and speed information fed back by the bumper, the cliff sensor and the ultrasonic sensor, the infrared sensor, the magnetometer, the accelerometer, the gyroscope, the odometer, and the like, and can give specific next action strategies for different situations, so that the work of the cleaning device 10 is more in line with the requirements of the owner, and the user experience is better. Further, the control module 14 can plan the most efficient and reasonable cleaning path and cleaning method based on the real-time map information drawn by SLAM (Simultaneous Localization and Mapping), which can improve the cleaning efficiency of the cleaning device 10.

[0096] In some embodiments, the energy module 16 includes a rechargeable battery, such as a nickel-hydrogen battery and a lithium battery. The rechargeable battery can be connected with a charging control circuit, a battery pack charging temperature detection circuit, and a battery undervoltage monitoring circuit, and the charging control circuit, the battery pack charging temperature detection circuit, and the battery undervoltage monitoring circuit are connected with a single-chip microcomputer control circuit. The host is connected with a charging pile through a charging electrode arranged on the side or the bottom of the machine body for charging.

[0097] In some embodiments, the human-computer interaction module 17 includes keys on the host panel, which are used for the user to select functions; can also include a display screen and / or an indicator light and / or a loudspeaker, which show the current state of the machine or the function selection items to the user; and can also include a mobile phone client program. For path navigation type cleaning devices, the mobile phone client can show the user a map of the environment where the device is located, and the position of the machine, and can provide more rich and personalized function items to the user.

[0098] In some embodiments, the cleaning module 15 can include a dry cleaning module, or a dry and wet cleaning module. As shown in FIG. 2, the dry cleaning module can include a rolling brush assembly 151, an edge brush 152, etc.; the wet cleaning module includes a cleaning head 153, a water tank, etc.

[0099] In some embodiments, the rolling brush assembly 151 includes a rolling brush, a dust box, a fan, and an air outlet. The rolling brush with a certain interference with the ground sweeps the garbage on the ground and brings it to the front of the dust collection port between the rolling brush and the dust box, and then the garbage is sucked into the dust box by the suction gas generated by the fan structure and passing through the dust box. The garbage is isolated inside the dust box near the dust collection port by the filter screen, the filter screen completely isolates the dust collection port from the air outlet, and the filtered air enters the fan through the air outlet.

[0100] In some embodiments, the dust collection port of the dust box is located in front of the machine, the air outlet is located on the side of the dust box, and the air inlet of the fan is opposite to the air outlet of the dust box. The front panel of the dust box can be opened for cleaning the garbage in the dust box. The filter screen is detachably connected with the box body of the dust box, facilitating the disassembly and cleaning of the filter screen.

[0101] In some embodiments, as shown in FIGS. 3-5, the rolling brush assembly 151 includes at least two rolling brushes 1511, each of which includes a connecting end and a free end. The at least two rolling brushes 1511 include two oppositely arranged first and second rolling brushes 15111 and 15112, the first rolling brush 15111 includes a first connecting end and a first free end, and the second rolling brush 15112 includes a second connecting end and a second free end. The first free end of the first rolling brush 15111 is oppositely spaced apart from the second free end of the second rolling brush 15112.

[0102] By arranging at least two rolling brushes 1511 in the rolling brush assembly 151, compared with arranging only one rolling brush 1511, the stability during cleaning is effectively improved. By arranging a gap between the first free end of the first rolling brush 15111 and the second free end of the second rolling brush 15112, the interference or jamming of the oppositely arranged first and second rolling brushes 15111 and 15112 is avoided.

[0103] In some embodiments, as shown in FIG. 3 and FIG. 4, the rolling brush assembly 151 further comprises a rolling brush cover 1512, a rolling brush cabin 15121 is formed through the rolling brush cover 1512, and at least two rolling brushes 1511 are arranged in the rolling brush cabin 15121. A dust collection port 15122 is arranged on the rolling brush cabin 15121, and the dust collection port 15122 is used to communicate with the dust box. The position of the dust collection port 15122 can correspond to the gap between the first rolling brush 15111 and the second rolling brush 15112, and during the rotation of the first rolling brush 15111 and the second rolling brush 15112, garbage, hair and the like are swept to the position corresponding to the gap, and then the garbage, hair and the like can be timely and effectively sucked into the dust box through the dust collection port 15122 located at the gap.

[0104] In some embodiments, as shown in FIG. 5, the first rolling brush 15111 and the second rolling brush 15112 each comprise a shaft rod and a cleaning piece arranged on the shaft rod, the cleaning piece comprises a blade, or the cleaning piece comprises a bundle of hairs, or the cleaning piece comprises a blade and a bundle of hairs. When the cleaning piece comprises a blade and a bundle of hairs, the blade and the bundle of hairs can be respectively connected to the shaft rod, or the blade and the bundle of hairs are connected as a whole. As shown in FIG. 6, the first rolling brush 15111 comprises a first shaft rod 151111 and a first blade 151112 and a first bundle of hairs 151113 arranged on the first shaft rod 151111; as shown in FIG. 7, the second rolling brush 15112 comprises a second shaft rod 151121 and a second blade 151122 and a second bundle of hairs 151123 arranged on the second shaft rod 151121; through the arranged blade, the blade is driven to rotate during the rotation of the shaft rod, and the garbage is rolled in front of the dust collection port 15122 between the rolling brush 1511 and the dust box, and then is sucked into the dust box. Through the arranged bundle of hairs, the bundle of hairs can sweep the garbage such as dust and hair to the front of the dust collection port 15122 between the dust box, and then is sucked into the dust box. Through the cooperation of the bundle of hairs and the blade, the cleaning effect of the rolling brush 1511 can be improved.

[0105] In some embodiments, when the cleaning piece comprises a blade, the shaft rod and the blade are integrally formed. In the process of preventing hair from winding around the rolling brush 1511, if the shaft rod and the blade are a split structure assembled together, there is usually a gap at the assembly position of the shaft rod and the blade during assembly. If the hair enters the gap position, it cannot be detached from the rolling brush 1511. By setting the shaft rod and the blade as an integrally formed structure, the gap between the shaft rod and the blade is avoided, and the situation that the hair cannot be detached from the rolling brush 1511 after entering the gap is avoided, thereby enhancing the effect of preventing hair from winding around the first rolling brush 15111 and the second rolling brush 15112.

[0106] In some embodiments, the shaft and the blades can be combined to form an integrated structure through processes such as in-mold injection, liquid injection, hydraulic forming, etc., so as to avoid forming gaps between the shaft and the blades, thereby avoiding the situation that hair enters the gaps and cannot be separated from the roller brush 1511.

[0107] In some embodiments, the shaft can be made of PC (polycarbonate), ABS (acrylonitrile-butadiene-styrene copolymer), PC+ABS, PA (polyamide), PC+GF (glass fiber), ABS+GF, PC+ABS+GF, PA+GF, etc.; and the blades can be made of at least one of TPU (thermoplastic polyurethane rubber), TPE (thermoplastic elastomer), silicone, rubber, etc.

[0108] In some embodiments, when the cleaning piece includes blades and tufts, the blades are multiple, and the multiple blades are arranged in the circumferential direction of the shaft, and in the circumferential direction of the shaft, the tufts are arranged between adjacent blades. By arranging the tufts between the adjacent blades, dust, hair and other garbage can be swept to the front of the dust collection port 15122 between the dust boxes, and then sucked into the dust boxes; by the cooperation of the tufts and the blades, the cleaning effect of the roller brush 1511 can be improved.

[0109] In some embodiments, as shown in FIGS. 6 and 7, multiple tufts are arranged between adjacent blades, and the blades are arranged in a spiral shape in the axial direction of the shaft, and the multiple tufts are arranged in a spiral shape in the axial direction of the shaft. By arranging the multiple blades and the tufts in a spiral shape in the axial direction of the shaft, during the rotation of the roller brush 1511, garbage can be moved towards the movable end, thereby making it easier for the garbage to pass through.

[0110] In some embodiments, the tuft includes a fixed end and a movable end, the fixed end is connected to the shaft, and in the case of no deformation under external force, the tuft extends in a straight line, the movable end extends away from the shaft, and is inclined towards the free end of the roller brush 1511, which can guide the garbage when moving the garbage, so that the garbage can move along the extension direction of the tuft to the movable end, and then move to the free end of the shaft and be sucked into the dust box, thereby further improving the cleaning effect.

[0111] In some embodiments, in the axial direction of the shaft, the angle between the tuft after being inclined towards the free end of the roller brush 1511 and the outer wall of the shaft can be 30°-60°, such as 30°, 35°, 40°, 45°, 50°, 55°, 60°, etc.

[0112] In some embodiments, the outer wall of the shaft rod can be made of elastic material, so that the outer wall of the shaft rod can be elastically deformed. In other embodiments, the outer wall of the shaft rod can be rigid. It should be noted that rigid means that the outer wall of the shaft rod will not deform or will deform slightly under normal working conditions, but it does not mean that the outer wall of the shaft rod cannot deform at all; the rigid outer wall of the shaft rod will not deform under normal working conditions.

[0113] In some embodiments, the end portion of the shaft rod is made of soft rubber material, which has large surface friction and is beneficial to the hair being thrown out. It can be understood that the part of the shaft rod other than the end portion can be made of hard rubber material.

[0114] In some embodiments, the extension direction of the rotation shafts of the oppositely arranged first and second roller brushes 15111 and 15112 intersects. By making the extension direction of the rotation shafts of the first and second roller brushes 15111 and 15112 intersect, i.e., the first and second roller brushes 15111 and 15112 can be arranged in a V shape, it is beneficial to collect the garbage on the ground to the middle position, and at the same time, it is beneficial to push the hair wound on the roller brush 1511 to the middle and fall off into the dust box through the gap in the middle, thereby further improving the cleaning effect.

[0115] In some embodiments, the free ends of the oppositely arranged first and second roller brushes 15111 and 15112 are inclined towards the dust collecting port 15122, i.e., the first and second roller brushes 15111 and 15112 can collect the garbage and the hair wound on the roller brush 1511 to the dust collecting port 15122, which is beneficial to the garbage and hair being sucked into the dust box.

[0116] In some embodiments, along the direction of the central vertical axis Z, at the bottom of the roller brush assembly 151, the roller brush 1511 rotates from the first side to the second side of the roller brush cabin 15121, and the dust collecting port 15122 is arranged at the second side, i.e., the roller brush 1511 rotates towards the rear along the front-rear axis X, and the dust collecting port 15122 is arranged at the rear position of the roller brush cabin 15121 along the front-rear axis X, which can collect the garbage and the hair wound on the roller brush 1511 to the dust collecting port 15122, thereby improving the cleaning effect.

[0117] In some embodiments, the rolling brush assembly 151 further comprises: a support, the support comprising a sleeve rod, and the rolling brush 1511 is sleeved on the sleeve rod, so that the rolling brush 1511 can stably rotate on the sleeve rod. The rolling brush 1511 is assembled on the sleeve rod, and the included angle between the two rolling brushes 1511 can be adjusted by adjusting the included angle between the two supports. As shown in FIGS. 8 and 9, the first rolling brush 15111 is arranged on the first support 1515, and the second rolling brush 15112 is arranged on the second support 1516. The included angle ∠A between the sleeve rod on the first support 1515 and the sleeve rod on the second support 1516 is 140°-178°, for example, 140°, 145°, 150°, 155°, 160°, 165°, 170°, 175°, 178°, etc.

[0118] In some embodiments, the first rolling brush 15111 and the second rolling brush 15112 have a speed difference. When the cleaning device 10 is performing cleaning work, the hair on the ground is easy to entangle on the rolling brush 1511 and cannot fall off by itself, which requires the user to manually remove the hair entangled on the rolling brush 1511, greatly reducing the user experience. By making the first rolling brush 15111 and the second rolling brush 15112 have a speed difference, when the hair is entangled on the first rolling brush 15111 and the second rolling brush 15112, the first rolling brush 15111 can pull out the hair entangled on the second rolling brush 15112, or the second rolling brush 15112 can pull out the hair entangled on the first rolling brush 15111, thereby realizing the hair being thrown out into the dust box and improving the user experience.

[0119] In some embodiments, the rotating directions of the two rolling brushes 1511 arranged oppositely are the same. The rotating directions of the first rolling brush 15111 and the second rolling brush 15112 can be the same, so as to simultaneously sweep up the garbage on the ground and roll it to the front of the dust collecting port 15122 between the rolling brush 1511 and the dust box, and then be sucked into the dust box.

[0120] In some embodiments, the speed ratio of the two rolling brushes 1511 arranged oppositely is 1:1.05-1:1.2, for example, 1:1.05, 1:1.1, 1:1.15, 1:1.2; that is, the speed ratio of the first rolling brush 15111 and the second rolling brush 15112 is 1:1.05-1:1.2, or the speed ratio of the second rolling brush 15112 and the first rolling brush 15111 is 1:1.05-1:1.2. By making the speed ratio of the two rolling brushes 1511 arranged oppositely be 1:1.05-1:1.2, the rotating speeds of the two rolling brushes 1511 are relatively close, so that both of the two rolling brushes 1511 can have good cleaning effect when cleaning garbage, so as to avoid the cleaning effect being reduced when one of the rotating speeds is relatively slow, or the service life being reduced due to accelerated wear when one of the rotating speeds is relatively high.

[0121] In some embodiments, the two relatively arranged rolling brushes 1511 have relatively fast rotating speed, and the rotating speed of the rolling brush 1511 with relatively fast rotating speed can be 850 r / min-1600 r / min, for example, 850 r / min, 900 r / min, 950 r / min, 1000 r / min, 1100 r / min, 1200 r / min, 1300 r / min, 1400 r / min, 1500 r / min, etc.; the rotating speed of the rolling brush 1511 with relatively slow rotating speed can be 500 r / min-1250 r / min, for example, 500 r / min, 550 r / min, 600 r / min, 700 r / min, 800 r / min, 900 r / min, 1000 r / min, 1100 r / min, 1200 r / min, etc. The rotating speeds of the two rolling brushes 1511 are relatively close, and both of the two rolling brushes 1511 have good cleaning effect when cleaning garbage, so as to avoid that the cleaning effect is reduced when one of the rotating speeds is slow, or the service life is reduced due to accelerated wear when one of the rotating speeds is high.

[0122] In some embodiments, the rotating speed difference of the two relatively arranged rolling brushes 1511 can be 50 r / min-350 r / min, for example, 50 r / min, 100 r / min, 150 r / min, 200 r / min, 250 r / min, 300 r / min, 350 r / min, etc. The rotating speed difference of the two rolling brushes 1511 is small, and both of the two rolling brushes 1511 have good cleaning effect when cleaning garbage, so as to avoid that the cleaning effect is reduced when one of the rotating speeds is slow, or the service life is reduced due to accelerated wear when one of the rotating speeds is high.

[0123] In some embodiments, as shown in FIG. 10, the rolling brush assembly 151 further includes a driving device 15131, a first transmission assembly 15132 and a second transmission assembly 15133, the first transmission assembly 15132 connects the driving device 15131 and the first rolling brush 15111, and the second transmission assembly 15133 connects the driving device 15131 and the second rolling brush 15112; wherein the transmission ratios of the first transmission assembly 15132 and the second transmission assembly 15133 are different.

[0124] In some embodiments, the first transmission assembly 15132 is a gear transmission assembly. As shown in FIG. 11, the first transmission assembly 15132 can include a first drive gear 151321, a first connecting gear 151322, a second connecting gear 151323, and a first driven gear 151324 engaged together in sequence, the first drive gear 151321 is connected with the output shaft of the driving device 15131, and the first driven gear 151324 is fixedly connected with the first rolling brush 15111; the first drive gear 151321 is driven to rotate by the driving device 15131, thereby driving the first driven gear 151324 to rotate, and the purpose of driving the first rolling brush 15111 to rotate is achieved through the first driven gear 151324. In some embodiments, as shown in FIG. 11, the first connecting gear 151322 can be a double-layer gear, the lower layer gear ring with more teeth is engaged with the first drive gear 151321, and the upper layer gear ring with fewer teeth is engaged with the second connecting gear 151323; by setting the first connecting gear 151322 as a double-gear ring with different numbers of teeth, it is beneficial to adjust the transmission ratio of the first transmission assembly 15132.

[0125] In some embodiments, the second transmission assembly 15133 is a gear transmission assembly. As shown in FIGS. 11 and 12, the second transmission assembly 15133 can include a second driven gear 151331, a third connecting gear 151332, and a third driven gear 151333 engaged together in sequence, the third driven gear 151333 is fixedly connected with the second rolling brush 15112; the first transmission assembly 15132 further includes a fourth connecting gear 151325 and a fifth connecting gear 151326 engaged together, the fourth connecting gear 151325 is engaged with the first driven gear 151324, and the fifth connecting gear 151326 is connected with the second driven gear 151331 through a transmission rod 15134 to rotate synchronously; when the first driven gear 151324 rotates, the fourth connecting gear 151325 and the fifth connecting gear 151326 are driven to rotate, thereby driving the second driven gear 151331 to rotate through the transmission rod 15134, then driving the third driven gear 151333 to rotate through the second driven gear 151331, and the purpose of driving the second rolling brush 15112 to rotate is achieved.

[0126] By the arrangement of the second transmission assembly 15133, the synchronous rotation of the first roller brush 15111 and the second roller brush 15112 is realized; at the same time, by the second transmission assembly 15133, one driving device 15131 can be used to drive the first roller brush 15111 and the second roller brush 15112 simultaneously. In addition, by adjusting the transmission ratio of the gears in the first transmission assembly 15132 and the second transmission assembly 15133, the rotation speed of the first roller brush 15111 and the second roller brush 15112 can be adjusted; for example, the number of teeth of the fourth connecting gear 151325 can be the same as that of the third connecting gear 151332, the number of teeth of the fifth connecting gear 151326 can be the same as that of the second driven gear 151331, the number of teeth of the first driven gear 151324 can be twenty, and the number of teeth of the third driven gear 151333 can be twenty-two; by adjusting the number of teeth of the first driven gear 151324 and the third driven gear 151333, the rotation speed of the first roller brush 15111 and the second roller brush 15112 can be adjusted.

[0127] In other embodiments, the driving device 15131 can also drive the first roller brush 15111 and the second roller brush 15112 through a belt transmission assembly, a shaft transmission assembly, a chain transmission assembly, etc., which is not limited in the present disclosure.

[0128] In some embodiments, the driving device 15131 can be an electric motor, which is used as a driving source to provide power source for the driving device 15131. At the same time, the controllability and stability of the electric motor are higher, which can improve the accurate control of the rotation speed of the first roller brush 15111 and the second roller brush 15112.

[0129] In some embodiments, as shown in FIG. 13, the roller brush assembly 151 further includes a first driving device 15135, a first transmission assembly 15132, a second driving device 15136, and a second transmission assembly 15133. The first transmission assembly 15132 connects the first driving device 15135 and the first roller brush 15111 of the two oppositely arranged roller brushes 1511, and the second transmission assembly 15133 connects the second driving device 15136 and the second roller brush 15112. By arranging the first driving device 15135 and the second driving device 15136, the first roller brush 15111 and the second roller brush 15112 are driven respectively.

[0130] In some embodiments, the transmission ratios of the first transmission assembly 15132 and the second transmission assembly 15133 are different to achieve the adjustment of the rotation speeds of the first and second rolling brushes 15111 and 15112. The specific structure of the first driving device 15135 driving the first transmission assembly 15132 to rotate the first rolling brush 15111 and the specific structure of the second driving device 15136 driving the second transmission assembly 15133 to rotate the second rolling brush 15112 can be the same as the specific structure of the driving device 15131 driving the first transmission assembly 15132 to rotate the first rolling brush 15111 in the above-mentioned embodiments, which will not be described here again.

[0131] In some embodiments, the rotation speeds of the first driving device 15135 and the second driving device 15136 can be the same, and the adjustment of the rotation speeds of the first and second rolling brushes 15111 and 15112 can be achieved by adjusting the number of teeth of the driven gear connected with the first rolling brush 15111 in the first transmission assembly 15132 and the number of teeth of the driven gear connected with the second rolling brush 15112 in the second transmission assembly 15133. In other embodiments, the first transmission assembly 15132 and the second transmission assembly 15133 using gears as transmission assemblies can adjust the transmission ratio by adjusting the number of teeth of any gear in the gear transmission assembly, which is not limited in the present disclosure.

[0132] In some embodiments, the rotation speeds of the output shafts of the first driving device 15135 and the second driving device 15136 are different, and the transmission ratios of the first transmission assembly 15132 and the second transmission assembly 15133 are the same, that is, the adjustment of the rotation speeds of the first and second rolling brushes 15111 and 15112 can be achieved by adjusting the rotation speeds of the output shafts of the first driving device 15135 and the second driving device 15136. In other embodiments, the adjustment of the rotation speeds of the first and second rolling brushes 15111 and 15112 can be achieved by simultaneously adjusting the rotation speeds of the output shafts of the first driving device 15135 and the second driving device 15136 and the transmission ratios of the first transmission assembly 15132 and the second transmission assembly 15133, which is not limited in the present disclosure.

[0133] In some embodiments, the first driving device 15135 and the second driving device 15136 can directly drive the first rolling brush 15111 and the second rolling brush 15112, i.e., without the transmission assembly. By adjusting the rotation speed of the output shafts of the first driving device 15135 and the second driving device 15136, the rotation speed of the first rolling brush 15111 and the second rolling brush 15112 can be adjusted. By adjusting the rotation speed of the output shafts of the first driving device 15135 and the second driving device 15136 through the controller, the rotation speed of the first rolling brush 15111 and the second rolling brush 15112 can be adjusted, so that the rotation speed of the first rolling brush 15111 and the second rolling brush 15112 can be adjusted when facing different surfaces to be cleaned.

[0134] In some embodiments, the end surface of the free end of at least one of the two rolling brushes 1511 arranged oppositely is arranged to be inclined relative to the rotation axis of the rolling brush 1511, the end surface of the free end of the first rolling brush 15111 is arranged to be inclined relative to the rotation axis of the rolling brush 1511, or the end surface of the free end of the second rolling brush 15112 is arranged to be inclined relative to the rotation axis of the rolling brush 1511, or the end surfaces of the free ends of the first rolling brush 15111 and the second rolling brush 15112 are both arranged to be inclined relative to the rotation axis of the rolling brush 1511.

[0135] By arranging the end surface of the free end of the rolling brush 1511 to be inclined, the end surface is formed as an inclined surface. When the hair is entangled at the end of the shaft, the hair will slide along the inclined end surface as it gradually tightens, and eventually come off the shaft, solving the problem of the end of the shaft being easily entangled with hair. Moreover, after the hair comes off the shaft, it will be thrown out by the rotation of the rolling brush 1511, and by arranging at least one end surface of the shaft to be inclined relative to the central axis of the shaft, the hair is easily thrown out, facilitating the hair to enter the dust box from the main brush chamber and improving the user experience.

[0136] In some embodiments, the end surfaces of the free ends of the first rolling brush 15111 and the second rolling brush 15112 are arranged to be inclined, and there is a state in which the inclined directions are the same when the first rolling brush 15111 and the second rolling brush 15112 are rotating or not rotating.

[0137] In some embodiments, the end surfaces of the free ends of the first rolling brush 15111 and the second rolling brush 15112 are arranged to be inclined, and there is a state in which the end surfaces are arranged to be parallel when the first rolling brush 15111 and the second rolling brush 15112 are rotating or not rotating.

[0138] In some embodiments, as shown in FIG. 14, the end surface of the free end of the rolling brush 1511 is a plane. By arranging the end surface of the free end of the rolling brush 1511 to be an inclined plane, when the hair is entangled at the end of the shaft, the hair will slide along the inclined plane as it gradually tightens, and eventually come off the shaft, improving the problem of the end of the shaft being easily entangled with hair.

[0139] In some embodiments, as shown in FIG. 15, the end face of the free end of the rolling brush 1511 is an arc face. By setting the end face of the free end of the rolling brush 1511 as an inclined arc face, the end face is smooth; when the hair is entangled at the end of the shaft, as the hair gradually tightens, the hair will slide along the inclined arc face, so that the hair can smoothly slide on the end face and finally come out of the shaft, thereby improving the problem of easy entanglement of hair at the end of the shaft. The end faces of the first rolling brush 15111 and the second rolling brush 15112 are arc faces facing each other.

[0140] In some embodiments, as shown in FIG. 16, the end face of the free end of the rolling brush 1511 is a wavy face. By setting the end face of the free end of the rolling brush 1511 as an inclined wavy face, the end face is smooth; when the hair is entangled at the end of the shaft, as the hair gradually tightens, the hair will slide along the inclined wavy face, so that the hair can smoothly slide on the end face and finally come out of the shaft, thereby improving the problem of easy entanglement of hair at the end of the shaft.

[0141] In some embodiments, the end faces of the free ends of the two rolling brushes 1511 arranged oppositely are of the same face type. By making the end faces of the free ends of the first rolling brush 15111 and the second rolling brush 15112 of the same face type, it is convenient to set the size of the gap between the first rolling brush 15111 and the second rolling brush 15112, and at the same time, the hair on the first rolling brush 15111 and the second rolling brush 15112 can be synchronized to come out of the shaft as much as possible on the end face.

[0142] In some embodiments, as shown in FIGS. 17 and 18, the first rolling brush 15111 includes a first shaft 151111 and a first end cover 151114 arranged on the first shaft 151111 to form a first free end of the first rolling brush 15111, and an outer surface of the first end cover 151114 forms an end face of the first free end; the second rolling brush 15112 includes a second shaft 151121 and a second end cover 151124 arranged on the second shaft 151121 to form a second free end of the second rolling brush 15112, and an outer surface of the second end cover 151124 forms an end face of the second free end. By setting the end cover and setting the end face of the end cover as inclined, the end face is formed as an inclined face; when the hair is entangled at the end of the shaft, as the hair gradually tightens, the hair will slide along the inclined end face, and finally come out of the shaft, thereby solving the problem of easy entanglement of hair at the end of the shaft; at the same time, after the hair comes out of the shaft, the hair is rotated with the rolling brush 1511, by setting at least one end face of the shaft to be inclined compared to the central axis of the shaft, the hair is easily thrown out, which is beneficial to the hair entering the dust box from the main brush bin, and improves the use experience.

[0143] In some embodiments, the shaft rod can be a cylindrical structure, and the shaft rod extends in a straight line. The end cover can be provided on the free end of the shaft rod by clamping, bonding, threaded connection or the like. The end face of the end cover is arranged obliquely relative to the central axis of the shaft rod, that is, the end face of the end cover is neither parallel to the central axis of the shaft rod nor perpendicular to the central axis of the shaft rod, that is, the central axis of the shaft rod forms an angle with the end face which is not 90 degrees.

[0144] In some embodiments, as shown in FIG. 19, the rolling brush assembly 151 further comprises a blocking piece 1514, at least part of the blocking piece 1514 is located between the oppositely arranged first rolling brush 15111 and the second rolling brush 15112. By arranging the blocking piece 1514 and making at least part of the blocking piece 1514 located between the oppositely arranged first rolling brush 15111 and the second rolling brush 15112, when the hair wound on the rolling brush 1511 follows the rotation of the rolling brush 1511, the hair will be hooked and the moving direction will be changed, the hair is diverted to move towards the dust collecting port 15122 side, and then is sucked into the dust box by the fan, thereby achieving the effect of removing the hair wound on the rolling brush 1511.

[0145] In some embodiments, the blocking piece 1514 is arranged on the inner wall of the rolling brush cabin 15121 away from the dust collecting port 15122 side along the front-rear axis X and is arranged opposite to the dust collecting port 15122, which is beneficial for the hair to move towards the dust collecting port 15122 side and then be sucked into the dust box by the fan.

[0146] In some embodiments, as shown in FIG. 20, the blocking piece 1514 is arranged on the inner wall of the rolling brush cabin 15121. By arranging the blocking piece 1514 on the inner wall of the rolling brush cabin 15121, the blocking piece 1514 can be stably connected, and part of the blocking piece 1514 can extend to between the opposite end faces of the first rolling brush 15111 and the second rolling brush 15112.

[0147] In some embodiments, at the bottom of the rolling brush assembly 151, the rolling brush 1511 rotates from the first side to the second side of the rolling brush cabin 15121, and the blocking piece 1514 is arranged on the first side, that is, the blocking piece 1514 is arranged on the side close to the front along the front-rear axis X and is arranged opposite to the dust collecting port 15122, which is beneficial for the hair to move towards the dust collecting port 15122 side and then be sucked into the dust box by the fan.

[0148] In some embodiments, as shown in FIG. 21, the blocking piece 1514 includes a connecting segment 15141 and a blocking segment 15142, the connecting segment 15141 is connected to the inner wall of the rolling brush cabin 15121, and the blocking segment 15142 is connected to the connecting segment 15141, and the extension direction of the blocking segment 15142 is different from the extension direction of the connecting segment 15141. By arranging the connecting segment 15141, the blocking piece 1514 can be stably fixed in the rolling brush cabin 15121. By making the extension direction of the blocking segment 15142 different from the extension direction of the connecting segment 15141, the connecting segment 15141 can extend between the oppositely arranged rolling brushes 1511, thereby playing a role in blocking hair.

[0149] In some embodiments, the blocking segment 15142 extends perpendicularly to the axial direction of the rolling brush 1511 between the opposite rolling brushes 1511, and the gap between the first rolling brush 15111 and the second rolling brush 15112 can be relatively small, so that the first rolling brush 15111 and the second rolling brush 15112 do not interfere with the blocking segment 15142 when rotating.

[0150] In some embodiments, as shown in FIG. 21, the connecting segment 15141 is provided with an arc surface for connecting with the inner wall of the rolling brush cabin 15121, the arc surface is attached to the arc-shaped inner wall of the main brush cover along the circumferential direction of the rolling brush 1511, the curvature of the arc surface of the connecting segment 15141 is matched with the curvature of the arc-shaped inner wall of the rolling brush cabin 15121, thereby achieving close attachment and connection, which can be connected by means of gluing.

[0151] In some embodiments, as shown in FIG. 21, the blocking segment 15142 is connected to the connecting segment 15141, and the blocking segment 15142 and the connecting segment 15141 form a hook-shaped structure, which can also be referred to as an L-shaped structure, after being connected, the extension direction of the blocking segment 15142 is perpendicular to the axial direction of the rolling brush 1511 and extends between the opposite rolling brushes 1511. The end of the blocking segment 15142 away from the connecting segment 15141 extends to the central axis of the rolling brush 1511.

[0152] In some embodiments, as shown in FIG. 22 and FIG. 23, the first rolling brush 15111 is provided with a first sleeve rod on the corresponding first support 1515, the first sleeve rod includes a first inner rod 15152 and a first outer rod 15151, and the first outer rod 15151 is sleeved on the first inner rod 15152 and rotationally connected with the first inner rod 15152. The first outer rod 15151 is fixedly arranged to form a supporting effect, and the first inner rod 15152 drives the first rolling brush 15111 to rotate. The cooperation of the first inner rod 15152 and the first outer rod 15151 realizes the driving of the assembly of the first rolling brush 15111.

[0153] In some embodiments, as shown in FIG. 24, the first inner rod 15152 is formed in axial limiting installation through the first fastener 15155, and the driving device can drive the first fastener 15155 to rotate so as to achieve the purpose of driving the first inner rod 15152 to rotate; the first inner rod 15152 is sleeved with the first bearing 15154, the inner ring of the first bearing 15154 is sleeved on the outer circumferential wall of the first inner rod 15152, the outer ring of the first bearing 15154 is connected to the inner circumferential wall of the first outer rod 15151, and the first outer rod 15151 is rotationally connected with the first inner rod 15152 through the first bearing 15154. By arranging the first bearing 15154 between the first outer rod 15151 and the first inner rod 15152, the relative rotation between the first inner rod 15152 and the first outer rod 15151 can be more stable, and the wear between the first outer rod 15151 and the first inner rod 15152 is also reduced. In some embodiments, the first bearing 15154 is at least two, and the at least two first bearings 15154 are arranged along the axial direction of the first inner rod 15152, which can further ensure that the first inner rod 15152 stably rotates in the first outer rod 15151. When the number of first bearings 15154 is two, one first bearing 15154 is arranged on the inner wall of one end of the first outer rod 15151, and the other first bearing 15154 is arranged on the inner wall of the other end of the first outer rod 15151.

[0154] In some embodiments, the first outer rod 15151 and the body of the first support 1515 are in an integral structure, and a section of the first inner rod 15152 can be rotatably arranged in the first outer rod 15151. One end of the first inner rod 15152 is connected with the driving device 15131, so that the driving device 15131 can drive the first inner rod 15152 to rotate, and a section of the first inner rod 15152 away from the driver penetrates out of the first outer rod 15151, and a first rubber core 15153 is fixedly sleeved on the section of the first inner rod 15152 penetrating out of the first outer rod 15151; the first shaft rod 151111 of the first rolling brush 15111 is provided with a first sleeve hole 151115, and the first rolling brush 15111 is sleeved on the first rubber core 15153 and the first outer rod 15151 through the first sleeve hole 151115, and the first rubber core 15153 and the first shaft rod 151111 are fixedly connected in the circumferential direction, so that the first rubber core 15153 can drive the first shaft rod 151111 to rotate, that is, the driving device 15131 drives the first inner rod 15152 to rotate, the first inner rod 15152 drives the first rubber core 15153 to rotate, and the first rubber core 15153 drives the first shaft rod 151111 to rotate.

[0155] In some embodiments, as shown in FIGS. 25 and 26, the second roller brush 15112 is provided with a second sleeve rod on the corresponding second support 1516, which includes a second inner rod 15162 and a second outer rod 15161. The second outer rod 15161 is sleeved on the second inner rod 15162 and is rotationally connected with the second inner rod 15162. The second outer rod 15161 is fixedly arranged to provide support, and the second inner rod 15162 drives the second roller brush 15112 to rotate. The cooperation between the second inner rod 15162 and the second outer rod 15161 realizes the driving of the assembly of the second roller brush 15112.

[0156] In some embodiments, as shown in FIG. 27, the second inner rod 15162 is axially limited and installed by the second fastener 15165. The driving device can drive the second inner rod 15162 to rotate by driving the second fastener 15165 to rotate. The second inner rod 15162 is sleeved with the second bearing 15164. The inner ring of the second bearing 15164 is sleeved on the outer peripheral wall of the second inner rod 15162, and the outer ring of the second bearing 15164 is connected to the inner peripheral wall of the second outer rod 15161. The second outer rod 15161 is rotationally connected with the second inner rod 15162 through the second bearing 15164. By arranging the second bearing 15164 between the second outer rod 15161 and the second inner rod 15162, the relative rotation between the second inner rod 15162 and the second outer rod 15161 is more stable, and the wear between the second outer rod 15161 and the second inner rod 15162 is reduced. In some embodiments, the second bearing 15164 is at least two, and the at least two second bearings 15164 are arranged along the axial direction of the second inner rod 15162, which can further ensure that the second inner rod 15162 stably rotates in the second outer rod 15161. When the number of second bearings 15164 is two, one second bearing 15164 is arranged on the inner wall of one end of the second outer rod 15161, and the other second bearing 15164 is arranged on the inner wall of the other end of the second outer rod 15161.

[0157] In some embodiments, the second outer rod 15161 is in one-piece structure with the body of the second support 1516, and a section of the second inner rod 15162 is rotatably arranged in the second outer rod 15161. One end of the second inner rod 15162 is connected with the driving device 15131, so that the driving device 15131 can drive the second inner rod 15162 to rotate. The section of the second inner rod 15162 away from the driving device penetrates out of the second outer rod 15161, and a second rubber core 15163 is fixedly sleeved on the section of the second inner rod 15162 penetrating out of the second outer rod 15161. The second shaft rod 151121 of the second rolling brush 15112 is provided with a second sleeve hole 151125, and the second rolling brush 15112 is sleeved on the second rubber core 15163 and the second outer rod 15161 through the second sleeve hole 151125. The second rubber core 15163 is fixedly connected with the second shaft rod 151121 in the circumferential direction, so that the second rubber core 15163 can drive the second shaft rod 151121 to rotate. That is, the driving device 15131 drives the second inner rod 15162 to rotate, the second inner rod 15162 drives the second rubber core 15163 to rotate, and the second rubber core 15163 drives the second shaft rod 151121 to rotate.

[0158] In some embodiments, the first bearing 15154 and the second bearing 15164 can be oil-containing bearings or ball bearings, or both. This ensures good rotation stability. For example, the two first bearings 15154 and the two second bearings 15164 can all be oil-containing bearings. The oil-containing bearing has good wear resistance. The oil-containing bearing is a powder metallurgy material, and the size can be customized to various shapes to meet different design spaces. The sizes of the two first bearings 15154 can be the same, and the sizes of the two second bearings 15164 can be the same, so as to reduce the cost and facilitate assembly.

[0159] In some embodiments, the shapes of the sleeve holes on the two oppositely arranged rolling brushes 1511 are different, and the shapes of the sleeve holes on the rolling brushes 1511 match those of the corresponding sleeve rods. The first rolling brush 15111 is assembled on the first support 1515, and the second rolling brush 15112 is assembled on the second support 1516. The first sleeve rod on the first support 1515 and the second sleeve rod on the second support 1516 can be the same or different. When the first sleeve rod on the first support 1515 and the second sleeve rod on the second support 1516 are the same, the installation positions of the first rolling brush 15111 and the second rolling brush 15112 can be replaced with each other. When the first sleeve rod on the first support 1515 and the second sleeve rod on the second support 1516 are different, i.e., the first sleeve hole 151115 on the first rolling brush 15111 and the second sleeve hole 151125 on the second rolling brush 15112 are different, the first rolling brush 15111 and the second rolling brush 15112 can be prevented from being installed in wrong positions on the first support 1515 and the second support 1516, thereby ensuring product yield.

[0160] In some embodiments, the first rolling brush 15111 is provided with a first sleeve hole 151115, and the first sleeve hole 151115 is sleeved on the sleeve rod of the first support 1515. The cross section of the first sleeve hole 151115 is adapted to the cross section of the sleeve rod of the first support 1515. The second rolling brush 15112 is provided with a second sleeve hole 151125, and the second sleeve hole 151125 is sleeved on the sleeve rod of the second support 1516. The cross section of the second sleeve hole 151125 is adapted to the cross section of the sleeve rod of the second support 1516. The cross section of the first sleeve hole 151115 is different from that of the second sleeve hole 151125, and the cross section of the sleeve rod of the first support 1515 is different from that of the sleeve rod of the second support 1516, so as to prevent the first rolling brush 15111 and the second rolling brush 15112 from being installed in wrong positions on the first support 1515 and the second support 1516.

[0161] In some embodiments, as shown in FIG. 28, the cross section of the first sleeve hole 151115 on the first rolling brush 15111 is rectangular, i.e., the first sleeve hole 151115 is a rectangular hole. The cross section of the first glue core 15153 on the first support 1515 is also rectangular and is adapted to the size and shape of the first sleeve hole 151115. After the first glue core 15153 on the first support 1515 is inserted into the first sleeve hole 151115, the first glue core 15153 abuts against the rectangular structure of the first sleeve hole 151115 in the circumferential direction through the rectangular structure, thereby driving the first rolling brush 15111 to rotate.

[0162] In some embodiments, as shown in FIG. 29, the cross section of the second sleeve hole 151125 on the second roller brush 15112 is plum blossom shaped, that is, the second sleeve hole 151125 is a plum blossom hole. The cross section of the second glue core 15163 on the second support 1516 is also plum blossom shaped, and is matched in size and shape with the second sleeve hole 151125. After the second glue core 15163 of the second support 1516 is inserted into the second sleeve hole 151125, the second glue core 15163 of the second support 1516 is in abutment with the plum blossom structure of the second sleeve hole 151125 in the circumferential direction through the plum blossom structure, thereby driving the second roller brush 15112 to rotate.

[0163] By making the cross section of the first sleeve hole 151115 and the cross section of the first glue core 15153 of the first support 1515 rectangular, and making the cross section of the second sleeve hole 151125 and the cross section of the second glue core 15163 of the second support 1516 plum blossom shaped, the cross section shapes are different and the sizes are different, so that the first glue core 15153 of the first support 1515 cannot be inserted into the second sleeve hole 151125, and the second glue core 15163 of the second support 1516 cannot be inserted into the first sleeve hole 151115, thereby forming a foolproof effect.

[0164] Embodiments of the present disclosure also provide a cleaning system, as shown in FIG. 30, which includes the base station 20 and the cleaning device 10 provided by the above-mentioned embodiments, and the base station 20 is used for docking the cleaning device 10. The cleaning device 10 can perform functions such as charging, self-cleaning, parking, sewage discharge, and water replenishment on the base station 20. The beneficial effects of the cleaning system provided by the present disclosure are described in detail in the above cleaning device embodiments, which will not be repeated here.

[0165] Other embodiments of the present disclosure will be apparent to those skilled in the art upon consideration of the specification and practice of the present disclosure. The present application is intended to cover any variations, uses, or adaptations of the present disclosure following the general principles thereof and including modifications and equivalents of the present disclosure. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0166] It should be understood that the present disclosure is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made to the embodiments without departing from the scope thereof. The scope of the present disclosure is indicated by the appended claims.

Claims

1. A roller brush assembly, comprising: At least two roller brushes, each roller brush including a connecting end and a free end, the free ends of the at least two roller brushes being arranged at a distance from each other, and the extension directions of the rotation axes of the two roller brushes arranged opposite each other intersecting.

2. The roller brush assembly according to claim 1, wherein, The roller brush assembly also includes: The roller brush chamber is provided with a dust collection port, which is used to connect with the dust box. The free ends of the two roller brushes arranged opposite each other are inclined toward the dust collection port.

3. The roller brush assembly according to claim 2, wherein, At the bottom of the roller brush assembly, the roller brush rotates from a first side of the roller brush chamber toward a second side, and the dust collection port is located on the second side.

4. The roller brush assembly according to claim 2, wherein, The roller brush assembly also includes: The support frame has the roller brush rotatably mounted on it. One end of the support frame is connected to the drive device, and the other end is inclined toward the dust collection port.

5. The roller brush assembly according to claim 1, wherein, The included angle between the rotating shafts of the two opposing rollers is 140° to 178°.

6. The roller brush assembly according to any one of claims 1 to 5, wherein, The two rollers are positioned opposite each other and rotate at different speeds.

7. The roller brush assembly according to claim 6, wherein, The rotational speed ratio of the two rollers set relative to each other is 1:1.05 to 1:1.

2.

8. The roller brush assembly according to claim 6, wherein, The rotational speed difference between the two rollers set relative to each other is 50 r / min to 350 r / min.

9. The roller brush assembly according to claim 6, wherein, The two rollers positioned opposite each other rotate in the same direction.

10. The roller brush assembly according to any one of claims 1 to 9, wherein, The roller brush assembly also includes: A blocking element, at least a portion of which is located between two opposing rollers.

11. The roller brush assembly according to claim 10, wherein, The roller brush assembly also includes: A roller brush chamber is provided corresponding to the at least two roller brushes, and the blocking member is provided on the inner wall of the roller brush chamber.

12. The roller brush assembly according to claim 11, wherein, The roller brush chamber is provided with a dust collection port, which is used to communicate with the dust box. The blocking member is provided on the inner wall of the roller brush chamber on the side away from the dust collection port and is arranged opposite to the dust collection port.

13. The roller brush assembly according to claim 11, wherein, At the bottom of the roller brush assembly, the roller brush rotates from a first side of the roller brush chamber toward a second side, and the blocking member is disposed on the first side.

14. The roller brush assembly according to claim 11, wherein, The blocking component includes a connecting section and a blocking section. The connecting section is connected to the inner wall of the roller brush chamber, and the blocking section is connected to the connecting section. The extending direction of the blocking section is different from the extending direction of the connecting section.

15. The roller brush assembly according to any one of claims 1 to 14, wherein, The roller brush assembly also includes: A support frame, the support frame including a connecting rod, and the roller brush sleeved on the connecting rod.

16. The roller brush assembly according to claim 15, wherein, The connecting rod includes an inner rod and an outer rod, with the outer rod sleeved on the inner rod and rotatably connected to the inner rod.

17. The roller brush assembly according to claim 16, wherein, The inner rod is fitted with a bearing, and the outer rod and the inner rod are rotatably connected through the bearing.

18. The roller brush assembly according to claim 15, wherein, The roller brush is provided with a socket hole, and is sleeved on the socket rod through the socket hole.

19. The roller brush assembly according to claim 18, wherein, The shapes of the socket holes on the two roller brushes that are set opposite to each other are different, and the shapes of the socket holes on the roller brushes match the shapes of the corresponding socket rods.

20. The roller brush assembly according to any one of claims 1 to 19, wherein, The roller brush includes a shaft and a cleaning element disposed on the shaft, the cleaning element including blades and / or bristles.

21. The roller brush assembly according to claim 20, wherein, When the cleaning component includes blades, the shaft and the blades are integrally formed.

22. The roller brush assembly according to claim 21, wherein, The shaft and the blade are manufactured by two-material injection molding, in-mold injection molding, liquid injection molding or hydraulic molding.

23. The roller brush assembly according to claim 20, wherein, When the cleaning component includes blades and bristle bundles, there are multiple blades arranged circumferentially along the shaft, and the bristle bundles are disposed between adjacent blades in the circumferential direction of the shaft.

24. The roller brush assembly of claim 20, wherein, When the cleaning component includes bristles, the bristles include a fixed end and a movable end, the fixed end being connected to the shaft, and the movable end extending away from the shaft and inclined toward the free end of the roller brush.

25. A cleaning device comprising a roller brush assembly as claimed in any one of claims 1 to 24.

26. A cleaning system comprising: The cleaning equipment as described in claim 25; A base station, which is used to park the cleaning equipment.

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