CN116998954A

CN116998954A - Automatic cleaning equipment

Info

Publication number: CN116998954A
Application number: CN202211734557.9A
Authority: CN
Inventors: 刘明; 成盼; 林翔
Original assignee: Beijing Rockrobo Technology Co Ltd
Current assignee: Beijing Rockrobo Technology Co Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-11-07

Abstract

The present disclosure provides an automatic cleaning apparatus comprising: a moving platform configured to move on the operation surface; the cleaning module, assemble in moving platform is configured to be right the operation face is clean, the cleaning module includes: the first round brush, along perpendicular to the first direction of the back-and-forth axis of moving platform assemble in the clean module, first round brush includes: a first brush member; a first shaft; and a first filler configured to fit over the first shaft such that the first filler is coaxial with the first shaft; and a second rolling brush assembled to the cleaning module in a direction parallel to the first rolling brush, the second rolling brush including: a second brush member; a second shaft member; wherein the first filler is an elastic member, the second shaft component is a rigid member, and the first filler has a first inner diameter and a first outer diameter such that the first filler has a preset thickness.

Description

Automatic cleaning equipment

Technical Field

The disclosure relates to the technical field of cleaning equipment, and in particular relates to automatic cleaning equipment.

Background

With the continuous development of technology, automatic cleaning devices, such as sweeping robots, sweeping and mopping integrated machines, etc., have been widely used by households. In order to realize the sweeping function, the cleaning robot with the sweeping function is provided with a cleaning brush to roll up garbage with different sizes on the ground and suck the garbage into the garbage collection box.

The structure and the arrangement mode of the cleaning brush become one of important factors influencing the cleaning effect of the automatic cleaning equipment, however, the existing single brush structure cannot improve the cleaning effect of the automatic cleaning equipment and cannot conduct targeted cleaning on different cleaning surface materials, so that the wide application of the automatic cleaning equipment is limited.

Disclosure of Invention

An object of the present disclosure is to provide an automatic cleaning apparatus capable of solving the problem that the cleaning ability of the automatic cleaning apparatus is low in the cleaning process. The method comprises the following steps:

the present disclosure provides an automatic cleaning apparatus comprising:

a moving platform configured to move on the operation surface;

the cleaning module, assemble in moving platform is configured to be right the operation face is clean, the cleaning module includes:

a first roller brush disposed along a first direction perpendicular to a front-rear axis of the moving platform, the first roller brush comprising: a first brush member; a first shaft; and a first filler configured to fit over the first shaft such that the first filler is coaxial with the first shaft; and

the second round brush sets up along the direction parallel with first round brush, the second round brush includes: a second brush member; a second shaft member;

Wherein the first filler is an elastic member, the second shaft component is a rigid member, and the first filler has a first inner diameter and a first outer diameter such that the first filler has a preset thickness.

In some embodiments, the second shaft member has an outer diameter that is less than an outer diameter of the first filler.

In some embodiments, the outer diameter of the second shaft member is greater than the inner diameter of the first filler.

In some embodiments, the first filler has a lowest point lying in a plane lower than a plane in which the second shaft member has a lowest point.

In some embodiments, the first brush member comprises:

a first tubular member configured to fit over the first filler such that the first tubular member is coaxial with the first shaft; and

a first brush extends from the outer surface of the first tubular member in a direction away from the first tubular member.

In some embodiments, the second brush member comprises:

a second cylindrical member configured to fit over the outer side of the second shaft component such that the second cylindrical member is coaxial with the second shaft component; and

and a second brush extending from an outer surface of the second cylindrical member in a direction away from the second cylindrical member.

In some embodiments, the first brush extends from the first tubular member outer surface in a direction away from the first tubular member a furthest distance less than the second brush extends from the second tubular member outer surface in a direction away from the second tubular member.

In some embodiments, the outer contour of the first brush member that is formed furthest from the outer surface of the first tubular member in a direction away from the first tubular member forms an outer diameter of the first roller brush, and the outer contour of the second brush member that is formed furthest from the outer surface of the second tubular member in a direction away from the second tubular member forms an outer diameter of the second roller brush, the outer diameter of the first roller brush being approximately equal to the outer diameter of the second roller brush.

In some embodiments, the distance between the axis of the first roller brush and the axis of the second roller brush is no greater than the outer diameter of the first roller brush and/or the second roller brush.

In some embodiments, the outer contour of the first brush member that is formed from the furthest extent of the outer surface of the first tubular member extending in a direction away from the first tubular member forms the outer diameter of the first roller brush, the outer contour of the second brush member that is formed from the furthest extent of the outer surface of the second tubular member extending in a direction away from the second tubular member forms the outer diameter of the second roller brush, and the distance between the axis of the first roller brush and the axis of the second roller brush is no greater than half of the sum of the outer diameters of the first roller brush and the second roller brush.

In some embodiments, the minimum distance from the first filler inner diameter to the second shaft member outer diameter is greater than the difference between the first filler inner diameter and outer diameter.

In some embodiments, the first and second roller brushes are disposed back and forth along a direction of travel of the robotic cleaning device.

In some embodiments, the plane of the lowest point of the outer contour of the second roll brush is lower than the plane of the lowest point of the outer contour of the first roll brush.

In some embodiments, the second roller brush and the first roller brush are disposed back and forth along a direction of travel of the robotic cleaning device.

In some embodiments, the plane of the lowest point of the outer contour of the first roll brush is lower than the plane of the lowest point of the outer contour of the second roll brush.

In some embodiments, the second shaft component is comprised of a second shaft, or includes a second shaft and a second filler, wherein the first shaft and the second shaft are both rigid members.

In some embodiments, when the second shaft member is formed from a second shaft, the second shaft includes a hollow structure extending therethrough along the second shaft axis.

In some embodiments, at least one end of the hollow structure includes a step.

In some embodiments, the second shaft further comprises a mating member configured to fit to the step.

In some embodiments, the number of the first brushes and/or the second brushes is plural, the plurality of first brushes are uniformly distributed in the circumferential direction of the first cylindrical member, and the plurality of second brushes are uniformly distributed in the circumferential direction of the second cylindrical member.

In some embodiments, the first and second roller brushes rotate in opposite directions.

Compared with the related art, the scheme of the embodiment of the disclosure has at least the following beneficial effects:

according to the automatic cleaning equipment provided by the embodiment of the disclosure, through the double-rolling-brush structure provided with the first rolling brush and the second rolling brush, the first filler in the first rolling brush is set to be an elastic member, and the second rolling brush is set to be a rigid member, so that the automatic cleaning equipment can effectively clean the ground based on the rolling brushes of the soft rolling brush and the hard rolling brush, the trafficability of garbage between the first rolling brush and the second rolling brush is improved, the interference quantity between the rolling brushes of the soft rolling brush and the hard rolling brush and the ground is reasonably configured, and the cleaning efficiency of the ground is improved as a whole.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort. In the drawings:

fig. 1 is a schematic perspective view of an automatic cleaning apparatus according to some embodiments of the present disclosure;

FIG. 2 is a schematic bottom view of a robotic cleaning device provided in some embodiments of the present disclosure;

FIG. 3 is a schematic view of a cleaning module according to some embodiments of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a cleaning module provided in some embodiments of the present disclosure;

FIG. 5 is a schematic longitudinal cross-sectional view of a first roller brush provided in some embodiments of the present disclosure;

FIG. 6 is a schematic cross-sectional view of a first roller brush provided in some embodiments of the present disclosure;

FIG. 6-1 is a schematic cross-sectional view of a second roller brush provided in some embodiments of the present disclosure;

FIG. 6-2 is a schematic cross-sectional view of a second roller brush provided in further embodiments of the present disclosure;

FIG. 7 is a perspective exploded view of an example of a cleaning brush provided in accordance with the present disclosure;

FIG. 8 is a perspective view of an example of a first end member of the cleaning brush of FIG. 7;

FIG. 9 is an angled partial structural exploded view of the first end member and shaft of the cleaning brush of FIG. 7;

FIG. 10 is another angular partial structural exploded view of the first end member and shaft of the cleaning brush of FIG. 7;

FIG. 11 is another angled perspective exploded view of the cleaning brush of FIG. 7;

FIG. 12 is an angled partial structural exploded view of the second end member and shaft of the cleaning brush of FIG. 7;

FIG. 13 is a perspective exploded view of an example of a cleaning brush provided in accordance with the present disclosure;

FIG. 14 is a schematic cross-sectional view of the cleaning brush of FIG. 13;

FIG. 15 is a perspective view of an example of an end member of the cleaning brush of FIG. 13;

FIG. 16 is a schematic perspective view of an example of a mating member of the shaft of FIG. 13;

FIG. 17 is a schematic perspective view of an example of a guided engagement structure of the engagement of the end member and shaft of FIG. 13;

FIG. 18 is a structural exploded view of the guide mating structure of FIG. 17;

FIG. 19 is a perspective exploded pictorial view of another example of a cleaning brush provided in accordance with the present disclosure;

FIG. 20 is an exploded view of an angled partial structure of the cleaning brush of FIG. 19;

fig. 21 is an exploded view of another angled partial structure of the cleaning brush of fig. 19.

Detailed Description

For the purpose of promoting an understanding of the principles and advantages of the disclosure, reference will now be made in detail to the drawings, in which it is apparent that the embodiments described are only some, but not all embodiments of the disclosure. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a commodity or device comprising such element.

In the related art, there is a double-roller brush type for an automatic cleaning apparatus such as a floor sweeping robot, and both rollers are generally flexible brush structures. The rolling brush structure of the double soft brushes has the advantages of large allowable deformation degree and good passing property of large-particle garbage, but the soft rolling brush is easy to deform after long-term use due to complex process and high cost, so that the structure of reasonably arranging the two rolling brushes becomes a technical problem to be solved.

Embodiments of the present disclosure provide an automatic cleaning apparatus, comprising: a moving platform configured to move on the operation surface; the cleaning module, assemble in moving platform is configured to be right the operation face is clean, the cleaning module includes: a first roller brush disposed along a first direction perpendicular to a front-rear axis of the moving platform, the first roller brush comprising: a first brush member; a first shaft; and a first filler configured to fit over the first shaft such that the first filler is coaxial with the first shaft; and a second rolling brush assembled to the cleaning module in a direction parallel to the first rolling brush, the second rolling brush including: a second brush member; a second shaft member; wherein the first filler is an elastic member, the second shaft component is a rigid member, and the first filler has a first inner diameter and a first outer diameter such that the first filler has a preset thickness.

According to the automatic cleaning equipment provided by the embodiment of the disclosure, through the double-rolling-brush structure provided with the first rolling brush and the second rolling brush, the first filler in the first rolling brush is set to be an elastic member, and the second shaft component is set to be a rigid member, so that the automatic cleaning equipment can effectively clean the ground based on the rolling brushes of the soft type and the hard type, the trafficability of garbage between the first rolling brush and the second rolling brush is improved, the interference quantity between the rolling brushes of the soft type and the hard type and the ground is reasonably configured, and the cleaning efficiency of the ground is improved as a whole.

According to the embodiment of the disclosure, one of the rolling brushes is a hard brush and is only composed of an inner hard core and an outer rubber, so that the structure is simple, the size precision is high, the interference quantity with the ground in the cleaning process is easy to control, and the cleaning effect and the noise in the cleaning process are ensured to be in a proper range; and the hard brush has little deformation after long-term use because no sponge exists, and the service life is prolonged. A combination of softness and hardness can ensure enough trafficability of large-particle garbage.

Alternative embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1-2 are schematic structural views of an automatic cleaning apparatus according to an exemplary embodiment, which may be a vacuum suction robot, a mopping/brushing robot, a window climbing robot, etc., as shown in fig. 1-2, and may include a moving platform 1000, a sensing system 2000, a control system (not shown), a driving system 3000, an energy system (not shown), a man-machine interaction system 4000, and a cleaning module 5000. Wherein:

Mobile platform 1000 may be configured to automatically move along a target direction on a manipulation surface. The operating surface may be a surface to be cleaned by the automatic cleaning device. In some embodiments, the automatic cleaning device may be a floor mopping robot, and the automatic cleaning device works on the floor, which is the operation surface; the automatic cleaning equipment can also be a window cleaning robot, and works on the outer surface of the glass of the building, wherein the glass is the operation surface; the automatic cleaning device may also be a pipe cleaning robot, and the automatic cleaning device works on the inner surface of the pipe, which is the operation surface. Purely for the sake of illustration, the following description of the application will be given by way of example of a mopping robot.

In some embodiments, mobile platform 1000 may be an autonomous mobile platform or a non-autonomous mobile platform. The autonomous mobile platform means that the mobile platform 1000 itself can automatically and adaptively make operational decisions according to unexpected environmental inputs; the autonomous mobile platform itself cannot adaptively make operational decisions based on unexpected environmental inputs, but may execute a given program or operate in accordance with certain logic. Accordingly, when mobile platform 1000 is an autonomous mobile platform, the target direction may be autonomously determined by the autonomous cleaning device; when mobile platform 1000 is an autonomous mobile platform, the target direction may be set systematically or manually.

Sensing system 2000 includes sensing devices located above mobile platform 1000 (not shown), a buffer located in a forward portion of mobile platform 1000 (not shown), cliff sensors located at the bottom of the mobile platform (not shown), and ultrasonic sensors (not shown), infrared sensors (not shown), magnetometers (not shown), accelerometers (not shown), gyroscopes (not shown), odometers (not shown), and the like, to provide various positional and motion state information of the machine to the control system.

For convenience of description, the following directional definitions are made: the automatic cleaning device can be calibrated by means of three mutually perpendicular axes defined: a transverse axis Y, a front-rear axis X and a vertical axis Z. The direction in which the arrow along the front-rear axis X points is denoted as "backward", and the direction opposite to the arrow along the front-rear axis X is denoted as "forward". The transverse axis Y is substantially the direction along the width of the robotic cleaning device, with the direction of the arrow along the transverse axis Y being denoted as "left" and the direction opposite the arrow along the transverse axis Y being denoted as "right". The vertical axis Z is in a direction extending upwardly from the floor of the robotic cleaning device. As shown in fig. 1, a direction along the front-rear axis X is defined as a second direction, which is, for example, a forward direction or a backward direction; the direction perpendicular to the second direction in the horizontal plane is a first direction, and the first direction is, for example, a left direction or a right direction.

A control system (not shown in the figure) is disposed on a circuit board in the mobile platform 1000, and includes a non-transitory memory, such as a hard disk, a flash memory, a random access memory, a communication computing processor, such as a central processing unit, an application processor, and an application processor, where the application processor is configured to receive the sensed environmental information of the plurality of sensors transmitted from the sensing system, draw an instant map of the environment where the automatic cleaning device is located according to the obstacle information fed back by the position determining device by using a positioning algorithm, such as SLAM, and autonomously determine a driving path according to the environmental information and the environmental map, and then control the driving system 3000 to perform operations such as forward, backward, and/or steering according to the autonomously determined driving path. Further, the control system may also determine whether to start the cleaning module 5000 to perform the cleaning operation according to the environmental information and the environmental map.

Drive system 3000 can execute drive commands to maneuver the robotic cleaning device across the floor based on specific distance and angle information, such as the x, y, and θ components. Drive system 3000 includes a drive wheel assembly, and drive system 3000 can control both the left and right wheels simultaneously, and for more precise control of movement of the machine, drive system 3000 preferably includes a left drive wheel assembly and a right drive wheel assembly, respectively. The left and right drive wheel assemblies are symmetrically disposed along a transverse axis defined by mobile platform 1000. In order for the robotic cleaning device to be able to move more stably or with greater motion capabilities on the floor, the robotic cleaning device may include one or more steering assemblies, which may be driven wheels or drive wheels, in configurations including, but not limited to, universal wheels, which may be positioned in front of the drive wheel assemblies.

The energy system (not shown) includes rechargeable batteries, such as nickel metal hydride batteries and lithium batteries. The rechargeable battery can be connected with a charging control circuit, a battery pack charging temperature detection circuit and a battery under-voltage monitoring circuit, and the charging control circuit, the battery pack charging temperature detection circuit and the battery under-voltage monitoring circuit are connected with the singlechip control circuit. The host computer charges through setting up the charging electrode in fuselage side or below and charging pile connection.

The man-machine interaction system 4000 comprises keys on a panel of the host machine, wherein the keys are used for a user to select functions; the system also comprises a display screen and/or an indicator light and/or a loudspeaker, wherein the display screen, the indicator light and the loudspeaker show the current state or function selection item of the machine to a user; a cell phone client program may also be included. For the path navigation type cleaning equipment, a map of the environment where the equipment is located and the position where the machine is located can be displayed to a user at the mobile phone client, and more abundant and humanized functional items can be provided for the user.

As shown in fig. 2, the cleaning module 5000 includes a dust box, a blower, and a main brush module. The main brush module cleans the garbage on the ground in front of a dust collection opening between the main brush module and the dust box, and then the dust box is sucked by the suction gas generated by the fan and passing through the dust box. The dust removal capability of the sweeper can be characterized by the sweeping efficiency DPU (Dust pickup efficiency) of the garbage, the sweeping efficiency DPU is influenced by the wind power utilization rate of an air duct formed by a dust collection opening, a dust box, a fan, an air outlet and connecting parts among the dust collection opening, the dust box, the fan and the air outlet, and the wind power utilization rate of the air duct is influenced by the type and the power of the fan, so that the sweeper is a complex system design problem. The improvement in dust removal capability is of greater significance for energy-limited cleaning automatic cleaning equipment than for conventional plug-in cleaners. Because the dust removal capability is improved, the energy requirement is directly and effectively reduced, that is to say, the original machine which can clean the ground of 80 square meters after charging once can be evolved into the machine which can clean the ground of 180 square meters or more after charging once. And the service life of the battery with reduced charging times can be greatly prolonged, so that the frequency of replacing the battery by a user can be reduced. More intuitively and importantly, the improvement of dust removal capability is the most obvious and important user experience, and users can directly draw a conclusion on whether the dust is cleaned/rubbed clean.

Fig. 2 is a schematic bottom view of the automatic cleaning apparatus in fig. 1, and as shown in fig. 2, the automatic cleaning apparatus includes a moving platform 1000, the moving platform 1000 is configured to move freely on an operation surface, a cleaning module 5000 is disposed at the bottom of the moving platform 1000, and the cleaning module 5000 is configured to clean the operation surface. The cleaning module 5000 includes a driving unit 5100, a rolling brush frame 5200, and a rolling brush 5300 fitted in the rolling brush frame 5200. The driving unit 5100 provides a driving force for forward rotation or reverse rotation, and applies the driving force to the rolling brush 5300 through a multi-stage gear set, and the rolling brush 5300 is rotated by the driving force to clean an operation surface, or the rolling brush 5300 is rotated by the driving force to collect dust.

As shown in fig. 2, a front brush mounting position 5211 and a rear brush mounting position 5212 for accommodating a cleaning brush are provided in the brush frame 5200. The front brush attachment position 5211 has a first end 52111 and a second end 52112 opposite the first end 52111, one end of the first roller brush 100 is engaged and fixed at the first end 52111, and the other end of the first roller brush 100 is engaged and fixed at the second end 52112. In some embodiments, the front brush mounting location 5211 is an elongated groove structure in the moving platform that extends in a first direction. The rear brush mounting location 5212 has a third end 52121 and a fourth end 52122 opposite the third end 52121. In some embodiments, the rear brush mounting location 5212 is substantially identical to the front brush mounting location 5211, e.g., is also an elongated groove structure in a mobile platform that extends in the first direction, and a second roller brush is mountable within the elongated groove of the rear brush mounting location 5212 through an opening of the elongated groove structure. Wherein the two elongated groove structures are parallel to each other in the second direction. The shape and the size of the strip-shaped groove structure are not limited, and at least one part of the first rolling brush and the second rolling brush is accommodated. The first end of the front brush mounting position 5211 and the third end of the rear brush mounting position 5212 are located on one side of the front-rear axis X axis, and the second end of the front brush mounting position 5211 and the fourth end of the rear brush mounting position 5212 are located on the other side of the front-rear axis X axis.

It should be noted that, in the following embodiments of the disclosure, the front cleaning brush mounting position 5211 is taken as a strip-shaped groove structure on the automatic cleaning device, which is close to the steering wheel, and the rear cleaning brush mounting position 5212 is taken as a strip-shaped groove structure, which is far away from the steering wheel, which is of course, and vice versa.

As shown in fig. 2, in some embodiments, the automatic cleaning apparatus includes two cleaning roller brushes 5300, one cleaning roller brush is disposed at the front cleaning brush mounting location 5211, which is considered as a "front roller brush"; the other cleaning roller brush is disposed at the rear cleaning brush mounting position 5212, and is regarded as a "rear roller brush". The front rolling brush can be installed in the front cleaning brush installation position 5211 through the opening of the strip-shaped groove structure, and the rear rolling brush can be installed in the rear cleaning brush installation position 5212 through the opening of the strip-shaped groove structure.

Fig. 3 is a combination structure of a cleaning module provided in some embodiments of the present disclosure, and fig. 4 is a cross-sectional structure of a cleaning module provided in some embodiments of the present disclosure, as shown in fig. 3 and fig. 4, a rolling brush 5300 assembled in a rolling brush frame 5200 includes: a first rolling brush 100 disposed along a first direction perpendicular to a front-rear axis of the moving platform, the first rolling brush 100 comprising: a first brush member; a first shaft 110; and a first filler 120, the first filler 120 being configured to fit over the first shaft 110 such that the first filler 120 is coaxial with the first shaft 110; and a second roller brush 200 disposed in a direction parallel to the first roller brush 100. In some embodiments, the first roller brush 100 and/or the second roller brush 200 may be mounted in other directions, such as a second direction non-parallel to the front-to-back axis, which is obviously at an angle to both the first direction and the front-to-back axis. The second rolling brush 200 includes: a second brush member; and a second shaft part 220, the second shaft part 220 being coaxial with the second brush member; wherein the first packing 120 is an elastic member, the second shaft part 220 is a rigid member, and the first packing has a first inner diameter and a first outer diameter such that the first packing has a preset thickness. The assembled first filler is generally a hollow cylindrical structure having a predetermined thickness, and has a first inner diameter and a first outer diameter after the first filler is assembled. However, in some embodiments, the first filler need not be a continuous cylinder, but may be any shape that remains after cutting on a cylinder basis, such as a discontinuous cylinder, or one or more separate parts, but they all have the same thickness after assembly, and the inner and outer surfaces of the thickness have the diameters of the cylinder, i.e., the first inner diameter and the first outer diameter of the first filler, respectively. The first and second roller brushes 100 and 200 are rotated in opposite directions with respect to each other to roll up the garbage on the operation surface when performing a cleaning task or to discharge the garbage in the dust box when performing a dust collecting task. In this embodiment, the first rolling brush 100 may be the aforementioned "front rolling brush" or the aforementioned "rear rolling brush", and the second rolling brush 200 may be the aforementioned "front rolling brush" or the aforementioned "rear rolling brush", which is not limited thereto.

Specifically, fig. 5 is a cross-sectional view of a first rolling brush provided in some embodiments of the present disclosure along a second direction, and fig. 6 is a cross-sectional view of the first rolling brush provided in some embodiments of the present disclosure along the first direction, as shown in fig. 5 and 6.

The first roller brush 100 includes a first shaft 110, at least one end of the first shaft 110 is connected to the multi-stage gear set, receives the driving force of the driving unit 5100 and realizes forward rotation or reverse rotation, the first shaft 110 is in a long cylindrical shape, a long square cylindrical shape, or a long polygonal cylindrical shape, which is not limited in this regard, and the axis of the first shaft 110 may be regarded as a rotation axis of the first roller brush 100, and when the first roller brush 100 is mounted to the moving platform, the driving system 2000 may drive the first shaft 110 to rotate, so as to drive the first brush member 130 on the surface of the first shaft 110 to clean.

The first roller brush 100 further includes a first filler 120, where the first filler 120 is configured to be sleeved on the first shaft 110, so that the first filler 120 is coaxial with the first shaft 110, as shown in fig. 4, a cross section of the first filler 120 is an annular structure, an inner ring shape of the first filler is matched with a cross section of the first shaft 110, the inner ring shape may be a circle, a direction, a polygon, etc., which is not limited, and an outer ring shape is generally a circle, and when the cross section of the first filler 120 is a circular ring, the cross section of the first filler 120 has an inner diameter and an outer diameter, the inner diameter is approximately equal to the diameter of the first shaft 110, so as to achieve seamless sleeving of the first filler 120 and the first shaft 110, and the outer diameter is approximately equal to the inner diameter of the first cylindrical member 131, so as to achieve seamless sleeving of the first filler 120 and the first cylindrical member 131. The first filler 120 is a compressible elastic material, and the first filler 120 has the characteristics of being compressed inwards when being stressed, and recovering after being stressed, such as sponge, organic flexible material, resin material, foam material and the like, and is not used for group lifting. In addition, the first filler 120 may be a hollow material or structure with the same compressible property, such as a spring or a leaf spring, which is not mentioned in detail.

The first roller brush 100 further includes a first brush member 130, the first brush member 130 is sleeved on the outer side of the first filler 120, the first brush member 130 includes a first cylindrical member 131, the first cylindrical member 131 is configured to be sleeved on the outer side of the first filler 120 so that the first cylindrical member 131 is coaxial with the first shaft 110, the first cylindrical member 131 is generally cylindrical, and has a length substantially the same as that of the first shaft 110, and the first cylindrical member 131 is generally made of a compressible material, such as an elastic plastic or rubber material, and is capable of being compressed inwards to deform under the action of external force, and is capable of recovering after the external force is removed. The first cylindrical member 131 generally has a thickness to enhance the abrasion resistance of the first brush member 130 as a whole. And the first brush member 130 further includes a first brush 132, the first brush 132 may have a plurality of sheet structures, the first brush 132 extending from an outer surface of the first cylindrical member 131 in a direction away from the first cylindrical member 131, and at least one first brush 132 extending from one end of the first cylindrical member 131 to the other end of the first cylindrical member 131 in an axial direction of the first cylindrical member 131. The first brush 132 may be in the form of blades or bristles or the like.

In some embodiments, the number of the first brushes 132 is plural, each first brush 132 has a spiral structure on the outer surface of the first cylindrical member 131, the plural first brushes 132 are substantially uniformly distributed along the circumference of the first cylindrical member 131, and the spiral structures of the plural first brushes 132 are substantially parallel. Through designing first brush 132 into spiral structure, can easily roll up rubbish when back round brush counter-rotating, can not produce too big impact force to first brush 132 and damage, improve life.

In some embodiments, the number of the first brushes 132 is plural, each of the first brushes 132 has a V-shaped structure on the outer surface of the first cylindrical member 131, the plural first brushes 132 are substantially uniformly distributed along the circumference of the first cylindrical member 131, and the tips of the V-shaped structures of the plural first brushes 132 are equally directed in the circumference of the first cylindrical member 131. Through designing first brush 132 into V type structure, can easily roll up rubbish when back round brush counter-rotating, can not produce too big impact force to first brush 132 and damage, improve life.

In some embodiments, the first brush 132 surface is provided with a plurality of first bumps 1321. The first protruding points on the first brush 132 are uniformly distributed along the extending direction of the surface of the first brush 132, and the first protruding points 1321 can increase the friction force between the brush member and the garbage, so that the cleaning is cleaner.

In some embodiments, as shown in fig. 6-1, the second roll brush 200 includes a second shaft component 220 and a second brush member 230; the second shaft component 220 is coaxial with the second brush member 230, the second brush member 230 is sleeved outside the second shaft component 220, the second shaft component 220 forms a second shaft of the second rolling brush 200, the second shaft component 220 is a rigid hard component, the second shaft component 220 includes at least one matching piece 210 disposed at least one end of the second shaft component 220 (for example, the matching piece 210 may be disposed at one end or two ends of the second shaft component 220), and is connected to a multi-stage gear set of the driving system 2000 through the matching piece 210, and receives the driving force of the driving system 2000 and realizes forward rotation or reverse rotation, where the second shaft component 220 is in the shape of a long cylindrical shape, a long square shape or a long polygonal square shape, which is not limited, and the following description will be given by taking a long cylindrical shape as an example.

In some embodiments, as shown in fig. 6-1, the second shaft member 220 includes a hollow structure 221, the hollow structure 221 extending axially along the second shaft member 220 through the axis of the second shaft member 220, the second shaft member 220 having a second inner diameter D _{Two inner parts} And a second outer diameter D _{Two-dimensional display} Second inner diameter D _{Two inner parts} And a second outer diameter D _{Two-dimensional display} Constituting the radial thickness of the second shaft member 220. At least one end of the hollow structure (for example, one end or both ends of the second shaft member 220) includes a stepped portion including one, two or three steps, for example, when the stepped portion is a two-step, an end surface of the hollow structure 221 has a third inner diameter and a fourth inner diameter, wherein the second inner diameter is smaller than the third inner diameter and smaller than the fourth inner diameter, wherein an end of the stepped portion located at the outermost side of the hollow structure 221 forms a receiving cavity 222 (for example, the receiving cavity 222 has the fourth inner diameter) having the largest diameter, the engaging member 210 has an external shape structure matched with the stepped portion, the engaging member 210 is fixedly or detachably connected with the hollow structure after being assembled at the stepped portion, and the engaging member 210 is used for being directly or indirectly connected with a multi-step gear set of a driving system 2000 to receive driving force of the driving system and realize forward rotation or reverse rotation of the second shaft member 220.

As shown in fig. 6-1 and 6-2, the second rolling brush 200 further includes a second brush member 230, the second brush member 230 is sleeved outside the second shaft component 220, the second brush member 230 includes a second cylindrical member 231, the second cylindrical member 231 is configured to be sleeved outside the second shaft component 220 such that the second cylindrical member 231 is coaxial with the second shaft component 220, the second cylindrical member 231 is generally cylindrical, and has a length substantially the same as that of the second shaft component 220, and the second cylindrical member 231 is generally compressible, such as made of an elastic plastic or rubber material, so as to be sleeved outside the second shaft component 220. The second tubular member 231 generally has a thickness to enhance the wear resistance of the second brush member 230 as a whole. The second tubular member 231 and the second shaft member 220 generally do not have any therebetween What is the filler, or at least the filler that is not flexible or elastic, when a rigid filler is provided, the rigid filler and the second shaft member can be considered completely as one and the same functional piece, i.e. the two rigid members together form the second shaft member, the outer diameter of which is obviously the outer diameter of the entire rigid member, i.e. the second outer diameter D of the second shaft member _{Two-dimensional display} . And the second brush member 230 further includes a second brush 232, the second brush 232 may have a plurality of sheet-like structures, the second brush 232 extending from an outer surface of the second tubular member 231 in a direction away from the second tubular member 231, at least one second brush 232 extending from one end of the second tubular member 231 to the other end of the second tubular member 231 in an axial direction of the second tubular member 231. The second brush 232 may be in the form of blades or bristles or the like.

In some embodiments, the number of second brushes 232 is a plurality, each second brush 232 is in a spiral configuration on the outer surface of the second cylindrical member 231, the plurality of second brushes 232 are substantially evenly distributed along the circumference of the second cylindrical member 231, and the spiral configurations of the plurality of second brushes 232 are substantially parallel. The shape of the second brush piece 232 is matched with that of the first brush piece 132, namely, when the shape of the second brush piece 232 is of a spiral structure, the shape of the first brush piece 132 is also of a spiral structure, and the second brush piece 232 is designed into the spiral structure, so that garbage can be easily rolled up when the front rolling brush and the rear rolling brush rotate oppositely, and the second brush piece 132 cannot be damaged due to overlarge impact force, so that the service life is prolonged.

In some embodiments, the number of second brushes 232 is a plurality, each second brush 232 has a V-shaped configuration on the outer surface of the second cylindrical member 231, the plurality of second brushes 232 are substantially evenly distributed along the circumference of the second cylindrical member 231, and the tips of the V-shaped configuration of the plurality of second brushes 232 are equally directed in the circumference of the second cylindrical member 231. The shape of the second brush 232 is matched with that of the first brush 132, namely, when the shape of the second brush 232 is of a V-shaped structure, the shape of the first brush 132 is also of a V-shaped structure, and the tip of the V-shaped structure of the second brush 232 can interfere with the tip of the V-shaped structure of the first brush 132 when the front rolling brush and the rear rolling brush oppositely rotate through designing the second brush 132 to easily roll up garbage.

In other embodiments, the second rolling brush 200 may be implemented in other forms, as shown in fig. 6-2, for example, the second rolling brush 200 includes the second shaft 240, the second filler 250, and the second brush member 230, and the structure of the second brush member 230 is described in the above embodiments, which are not repeated herein. The second shaft component in the above embodiment is composed of a second shaft 240 and a second filler 250, the second filler 250 is sleeved on the second shaft 240 so that the second filler 250 is coaxial with the second shaft 240, the section of the second filler 250 is an annular structure, the shape of the inner ring of the second filler is matched with the shape of the section of the second shaft 240, the shape of the inner ring can be circular, directional, polygonal, etc., without limitation, the shape of the inner ring is circular, the shape of the outer ring is generally circular, when the section of the second filler 250 is circular, the section of the second filler 250 has an inner diameter and an outer diameter, the inner diameter of the second filler is approximately equal to the diameter of the second shaft 240, so as to realize seamless sleeve joint of the second filler 250 and the second shaft 240, and the outer diameter of the second filler is approximately equal to the inner diameter of the second tubular member 231, so as to realize seamless sleeve joint of the second filler 250 and the second tubular member 231. The second filler 250 is an incompressible material, and the second filler 250 has a characteristic of not being compressed inwards basically after being stressed to provide sufficient supporting force for the second brush member 230, and the material of the second filler 250 is a rigid material such as hard plastic, hard resin material, metal material, etc., and the group is not taken as a limitation. In addition, the second filler 250 may be a hollow material or structure with the same incompressible characteristics, such as an incompressible keel structure, so as to reduce the weight of the second rolling brush, and not to take group lift.

In other embodiments, the second filler 250 may be integrally formed with the second shaft 240, unitarily formed of a hard material, to reduce rotational play.

After the first and second rolling brushes 100 and 200 are mounted, when the first and second rolling brushes 100 and 200 are operated, the rotation speeds of the first and second rolling brushes 100 and 200 are the same and the directions are opposite, for example, the first rolling brush 100 rotates counterclockwise and the second rolling brush 200 rotates clockwise. In the rotating process, the first brush piece and the second brush piece are always in an interference contact state at the middle position, namely the brush piece at the upper layer is not separated yet, and the brush piece at the lower layer is contacted; continuing to rotate, the brush piece at the upper layer is separated, the brush pieces at the two ends of the lower layer are contacted with each other to form a diamond-shaped closed air path, and garbage can be collected towards the middle along with the rotation of the brush piece by the brush component, so that the garbage is sucked into a dust box in the equipment along with the air duct 5400, and the aim of cleaning is fulfilled. Along with the synchronous rotation of the first rolling brush and the second rolling brush, the diamond-shaped closed air path formed by the brush piece at the next layer can be gradually reduced until the current closed cleaning is finished, the next closed cleaning can be started immediately, namely, the brush pieces at the two ends of the next layer are contacted with each other to form the diamond-shaped closed air path, and thus the circulation is realized, the first rolling brush and the second rolling brush can achieve the effect of continuous cleaning, and the cleaning efficiency is further improved.

In some embodiments, the second brush 232 surface is provided with a plurality of second bumps 2321. The second protruding points on the second brush 232 are uniformly distributed along the extending direction of the surface of the second brush 232, and the second protruding points 2321 can increase the friction force between the brush member and the garbage, so that the cleaning is cleaner.

In other embodiments, the first brush member in the first roller brush 100 and the second brush member in the second roller brush 200 may be different, and may be specifically configured according to the cleaning requirement. Optionally, the first rolling brush 100 is a brush, the second rolling brush 200 is a rubber brush, and the combination can meet the cleaning effect of various ground environments, namely, the good cleaning capability of the brush on hair or fine soft fibers is utilized, and the first rolling brush can be utilized to clean garbage on soft ground such as carpets; meanwhile, the second rolling brush can be utilized to clean floors, ceramic tiles and the like by utilizing the good cleaning capability of the rubber brush on the hard floors.

In some embodiments, the outer diameter of the second shaft member is less than the outer diameter of the first filler and/or the outer diameter of the second shaft member is greater than the inner diameter of the first filler. Since the second rolling brush is of an incompressible hard core structure, in order to avoid the large particle garbage passing property from being greatly reduced due to the incompressible hard core structure, the blades of the second rolling brush are required to be provided with a longer length than those of the first rolling brush, the distance from the outer diameter of the second shaft part (hard core) of the second rolling brush to the ground is not smaller than the distance from the outer diameter of the first filler (soft core) of the first rolling brush to the ground, and at the moment, the outer diameter of the second shaft part is required to be smaller than the outer diameter of the first filler. In addition, when the outer diameter of the second shaft part (hard core) of the second rolling brush is too large, the flexible space allowed to pass between the front rolling brush and the rear rolling brush is reduced, and the slightly large hard garbage is clamped between the first rolling brush and the second rolling brush; in addition, when the outer diameter of the second shaft part (hard core) of the second rolling brush is further reduced, when the outer diameters of the first brush part and the second brush part of the first rolling brush are the same, the corresponding second brush part length is gradually increased along with the reduction of the outer diameter of the second shaft part (hard core), if the length of the second brush part exceeds a reasonable range, the cleaning force is weakened because the second brush part becomes long, the surface area of the second brush part is increased, so that the second brush part is easier to adhere dust to influence the cleaning effect, and therefore, in order to ensure the cleaning effect, the second brush part length should not be too long, and at the moment, the outer diameter of the corresponding second shaft part (hard core) should not be too small, so that the outer diameter of the second shaft part is larger than the inner diameter of the first filler, and the length of the second brush part is ensured to be in a proper range.

In some embodiments, the first filler has a lowest point lying in a plane lower than a plane in which the second shaft member has a lowest point. Because the first filler has compressibility, in order to guarantee the trafficability characteristic of rubbish below first round brush and second round brush, need make the plane that the minimum place of first filler is located be less than the plane that the minimum place of second axle part was located, when first round brush is the front round brush, because first filler can be compressed thereby can guarantee the trafficability characteristic of rubbish, when the second round brush is the front round brush, because the minimum of second axle part is higher, still can guarantee the trafficability characteristic of rubbish, simultaneously, because first round brush is the back round brush and is nearer from ground, can intercept rubbish and be difficult for spilling from first round brush below, cleaning device's cleaning efficiency has been promoted.

In some embodiments, the first brush extends from the first tubular member outer surface in a direction away from the first tubular member a furthest distance less than the second brush extends from the second tubular member outer surface in a direction away from the second tubular member. As mentioned above, since the outer diameter of the first filler is larger than the outer diameter of the second shaft member, if the length of the first brush is not smaller than that of the second brush, the whole first rolling brush is larger, and the interference between the first brush and the ground is greatly increased under the condition that the assembly positions of the first rolling brush and the second rolling brush are approximately positioned on the same horizontal plane, so that the noise formed by the first brush beating the ground is increased, the resistance is increased for the travelling process of the automatic cleaning device, and the automatic cleaning device is inconvenient to execute cleaning tasks.

In some embodiments, the outer contour of the first brush member that is formed furthest from the outer surface of the first tubular member in a direction away from the first tubular member forms an outer diameter of the first roller brush, and the outer contour of the second brush member that is formed furthest from the outer surface of the second tubular member in a direction away from the second tubular member forms an outer diameter of the second roller brush, the outer diameter of the first roller brush being approximately equal to the outer diameter of the second roller brush. When the assembly positions of the first rolling brush and the second rolling brush are approximately positioned on the same horizontal plane or have little difference, the first rolling brush and the second rolling brush can be ensured to have enough interference quantity with the ground, and the double-brush cleaning effect is achieved. In addition, for the automatic cleaning equipment in the non-working state, the double rolling brushes in the storage state can be stored in the cleaning module in a substantially flat mode, and design and processing complexity caused by inconsistent designs of the front cleaning brush installation position and the rear cleaning brush installation position are also reduced.

In some embodiments, the distance between the axis of the first roller brush and the axis of the second roller brush is no greater than the outer diameter of the first roller brush and/or the second roller brush, e.g., the distance between the axis of the first roller brush and the axis of the second roller brush is less than the outer diameter of the first roller brush and/or the second roller brush. When the outer diameters of the first rolling brush and/or the second rolling brush are approximately equal, and the distance between the axis of the first rolling brush and the axis of the second rolling brush is larger than the outer diameter of the first rolling brush and/or the second rolling brush, the first brush piece and the second brush piece have no interference effect, so that garbage cleaned between the first rolling brush and the second rolling brush cannot be rolled up smoothly, and the overall cleaning effect of the cleaning equipment is affected.

In some embodiments, the outer contour of the first brush member that is formed from the furthest extent of the outer surface of the first tubular member extending in a direction away from the first tubular member forms the outer diameter of the first roller brush, the outer contour of the second brush member that is formed from the furthest extent of the outer surface of the second tubular member extending in a direction away from the second tubular member forms the outer diameter of the second roller brush, and the distance between the axis of the first roller brush and the axis of the second roller brush is no greater than half of the sum of the outer diameters of the first roller brush and the second roller brush. For example, when the distance between the axis of the first rolling brush and the axis of the second rolling brush is smaller than half of the sum of the outer diameters of the first rolling brush and the second rolling brush, and when the outer diameters of the first rolling brush and/or the second rolling brush are unequal, and the distance between the axis of the first rolling brush and the axis of the second rolling brush is larger than half of the sum of the outer diameters of the first rolling brush and the second rolling brush, no interference effect exists between the first brush piece and the second brush piece, so that garbage cleaned between the first rolling brush and the second rolling brush cannot be rolled up smoothly, and the overall cleaning effect of the cleaning equipment is affected.

In some embodiments, the minimum distance from the first filler inner diameter to the second shaft member outer diameter is greater than the difference between the first filler inner diameter and outer diameter. When the inner diameter of the first filler is too large, or the outer diameter of the second shaft part is too large, so that the minimum distance from the inner diameter of the first filler to the outer diameter of the second shaft part is too small, the flexible space allowed to pass between the front brush and the rear brush is reduced, slightly large garbage, even flexible garbage, can be clamped between the two brushes and cannot enter and exit the dust box, the limiting distance is that the outer diameter of the second shaft part is in contact with the outer diameter of the first filler, and at the moment, although the first filler still has a compressible space allowance, the first filler and the second shaft part block the suction force of the fan on the garbage due to the fact that no gap exists between the first filler and the second shaft part, the effect of entering and exiting the dust box by the garbage can be greatly reduced, and the cleaning efficiency is reduced.

In some embodiments, the first and second roller brushes are disposed back and forth along a direction of travel of the robotic cleaning device. At this time, a double-brush assembly structure with soft front and hard rear is formed, in order to ensure that garbage is missed from the rear, a plane where the lowest point of the outer contour of the second rolling brush is located is required to be lower than a plane where the lowest point of the outer contour of the first rolling brush is located, the interference quantity between the second brush and the ground is increased, and the garbage is protected from leaking from the lower surface of the second rolling brush.

In some embodiments, the second roller brush and the first roller brush are disposed back and forth along a direction of travel of the robotic cleaning device. At this time, a double-brush assembly structure with hard front and soft rear is formed, in order to ensure that garbage is missed from the rear, a plane where the lowest point of the outer contour of the first rolling brush is located is required to be lower than a plane where the lowest point of the outer contour of the second rolling brush is located, the interference quantity between the first brush piece and the ground is increased, and the garbage is protected from leaking from the lower surface of the first rolling brush.

According to the automatic cleaning equipment provided by the embodiment of the disclosure, through the double-rolling-brush structure of the first rolling brush and the second rolling brush, the first filler in the first rolling brush is set to be an elastic member, and the second shaft component in the second rolling brush is set to be a rigid member, so that the automatic cleaning equipment can effectively clean the ground based on the soft rolling brush and the hard rolling brush, the trafficability of garbage between the first rolling brush and the second rolling brush is improved, the interference quantity between the soft rolling brush and the hard rolling brush and the ground is reasonably configured, and the cleaning efficiency of the ground is integrally improved.

The specific structure of the first rolling brush (also referred to as a soft brush or a cleaning brush) will be described in detail with reference to fig. 7-12, and the same structure and function have the same technical effects, and will not be described herein.

Fig. 7 is a perspective exploded view of an example of a cleaning brush provided in accordance with the present disclosure. Fig. 8 is a perspective view of an example of an end member of the cleaning brush of fig. 7. Fig. 9 is another angular perspective view of the end member of the cleaning brush of fig. 8.

Referring to fig. 7 to 9, a cleaning brush 100 is provided in accordance with an embodiment of the present disclosure. The cleaning brush 100 includes: a shaft 110 including a shaft body 113, a first end 111 and a second end 112 located at both sides of the shaft body 113; a first end member 120 configured to be mounted to the first end 111, the first end member 120 having a first mounting structure 121 on a side thereof remote from the shaft 110. Specifically, the first assembly structure 121 is a transmission structure, and the first assembly structure 121 is connected to a driving mechanism of the cleaning apparatus.

Specifically, the first end member 120 has at least one first lead-in portion 1221, the first end portion 111 has at least one first mating portion 1111, and the at least one first lead-in portion 1221 mates with the at least one first mating portion 1111 to form a guiding mating structure such that the first end member 120 can only be mounted to the first end portion 111 in one circumferential assembly, i.e., the first end member 120 and the shaft 110 have a single mounting direction when assembled.

The meaning of the circumferential assembly means herein is that the two assemblies are rotated 360 degrees relative to each other, and if there is N circumferential assembly means, it is assumed that the two assemblies have N circumferential assembly means, where N is 1 or more.

As shown in fig. 8, the first end member 120 includes a first guide sleeve 122, the first guide sleeve 122 is configured to accommodate the first end 111, and the at least one first introduction portion 1221 is disposed on an inner peripheral wall of the first guide sleeve 122 and is a protruding portion protruding inward from the inner peripheral wall of the first guide sleeve 122. The first end member 120 is mounted to the first end 111 on the drive side.

Specifically, the at least first lead-in 1221 extends helically in a circumferential direction of the first guide sleeve 122, in particular helically along the inner circumferential wall, in a direction away from the first fitting structure 121, such that the first lead-in 1221 has a rotational direction, e.g. a clockwise (or counter-clockwise) rotational direction about the axis z of the shaft 110.

In the present example, the first lead-in portion 1221 is a protruding portion protruding from the inner peripheral wall of the first guide sleeve 122, but is not limited thereto, and one of the first lead-in portion 1221 and the first engaging portion 1111 may be a protruding portion, and the other may be a recessed portion.

In the example of fig. 8, the number of the first introduction portions 1221 is two, and the sizes of the two first introduction portions 1221 are not the same. By providing the two first introduction portions with different sizes, it is possible to effectively ensure that the first end member 120 and the end portion on the driving side of the shaft have only a single mounting direction, thereby controlling the mounting direction of the components such as the blade of the cleaning brush to be unique.

In this example, the number of the first introducing portions 1221 is two, but the present invention is not limited thereto, and in other examples, the number of the first introducing portions 1221 may be three or more, which is described as an alternative example only, and the present invention is not limited thereto.

As can be seen from fig. 9, the outer periphery of the first end 111 of the shaft 110 is provided with a first engaging portion 1111 corresponding to the first introduction portion 1221. In this example, two first fitting portions 1111 are provided on the outer circumference of the first end portion 111, the two first fitting portions 1111 are respectively in one-to-one correspondence with the two first introduction portions 1221, the first fitting portions 1111 are groove portions recessed inward from the outer circumferential surface of the first end portion 111, and a guide fitting structure is formed by the first introduction portions 1221 and the first fitting portions 1111 so that the first end member 120 can be mounted to the first end portion 111 only in one circumferential fitting manner.

By adding two first introduction portions of different sizes to the inner peripheral wall of the first guide sleeve, introduction and installation can be performed more effectively, and the first end member can be installed to the first end portion only in one circumferential assembly manner, the ease of installation of the end member can be improved, and the stability of the installation structure can be improved.

Optionally, an indication portion 1223 (see fig. 8) is provided on the outer periphery of the first guide sleeve 122, and configured to indicate a position of the first lead-in portion 1221 on the outer periphery of the first guide sleeve 122, for indicating a rotational assembly direction of the first end member 120 mounted to the first end 111 of the shaft 110, so that the first lead-in portion 1221 is aligned with the first mating portion 1111.

As shown in fig. 8 to 10, the first guide sleeve 122 is provided with a first locking portion 1222, for example, a groove portion recessed inward from the outer peripheral surface of the first guide sleeve 122. Accordingly, a first locking mating portion 1112 is provided on the first end portion 111, and the first locking portion 1222 cooperates with the first locking mating portion 1112 such that the first end member 120 is locked to the first end portion 111.

Referring to fig. 9 and 10, the first end member 120 further includes a first guide shaft 123, the first guide shaft 123 extends along an axis of the first guide sleeve 122, a first guide hole 1113 is provided on an end surface of the first end 111 remote from the second end 112, and the first guide hole 113 is coaxial with the shaft 110 and configured to accommodate the first guide shaft 123.

As shown in fig. 9 and 10, the end surface of the first assembly structure 121 away from the shaft has a regular polygon, and the number of sides of the regular polygon is a divisor of the number of brushes. In other words, the number of sides of the regular polygon of the outer end surface of the first end member and the number of groups of brushes of the automatic cleaning apparatus have a correspondence relationship. For example, the number N of sides of the regular polygon is a divisor of the number of groups (for example, 4 sides, 8 groups of blades; for example, 4 sides, 4 groups of blades), thereby ensuring that the direction of the blades and the like in the brush member of the cleaning brush is uniform after the cleaning brush is mounted on the main unit of the automatic cleaning device according to the N directions.

In the present embodiment, the sides of the regular polygon are N straight sides, but the present invention is not limited thereto, and in other embodiments, the sides may be modified, for example, curved sides, or a combination of straight sides and curved sides. Further, in other examples, the regular polygon shape may adaptively change according to the number of brushes.

In the example of fig. 7, the cleaning brush 100 further includes a brush member 130 disposed coaxially with the shaft 110, the brush member 130 including: a tubular member 131 fitted over the outer periphery of the shaft; a plurality of brushes 132. The plurality of brushes 132 extend from the outer surface of the cylindrical member in a direction away from the cylindrical member 131, and the plurality of brushes 132 are uniformly arranged in the circumferential direction of the cylindrical member.

In particular the brush 131 comprises a first brush. For example, the first brush member is V-shaped and includes five sets of first brush members.

In other examples, the brush may further include a second brush, a third brush, or the like, the second brush and the third brush having different shapes, lengths, or the like than the first brush. In addition, the brush structures of the different sets are substantially identical, and each set may include one or more blades, and when multiple blades are included, the structures of the multiple blades tend not to be identical.

Specifically, a flexible filler (not shown) is filled between the brush member 130 and the shaft 110, and the flexible filler covers the outer circumference of the shaft body, exposing the first end and the second end.

Further, the first end member 120 further comprises a first blocking structure 125 arranged between said first fitting structure 121 and said first guide sleeve 122 for preventing the windings from being over-extended away from said brush member and for preventing the windings from being over-extended away from said cleaning brush. The first blocking structure 125 is, for example, at least one blocking ring, in this example, two blocking rings. By arranging the blocking structure, the winding object such as garbage is wound on the blocking structure of the first end component, the winding object is effectively prevented from being wound on the shaft rod, and the winding object can be directly taken down along with the disassembly of the end component when the end component is disassembled.

The guide matching structure is formed by the first guide-in part in the first guide sleeve of the first end part component and the end part of the shaft rod at the driving side, and the locking matching structure is formed by the first locking part on the first guide sleeve and the first locking matching part at the end part of the shaft rod in a matching way, and the guide matching structure and the locking matching structure are matched in an assisted way, so that a more effective mounting structure can be realized, the mounting structure of the end part component and the shaft rod can be further optimized, and the integral structure of the cleaning brush can be further optimized.

FIG. 11 is another angled perspective exploded view of the cleaning brush of FIG. 7; fig. 12 is an exploded view of a partial structure of a second end member and an angle of a shaft of the cleaning brush of fig. 7.

As shown in fig. 11 and 12, the cleaning brush 100 further includes a second end member 140. The second end member 140 is positioned on the driven side and is mounted to the second end 112 of the shaft 110. The side of the second end member 140 remote from the shaft 110 has a second mounting structure 141 (in particular a bearing structure), the second mounting structure 141 being rotatable relative to the shaft, the second mounting structure 141 being rotatably connected to other structures of the cleaning device (e.g. the body, etc.).

As shown in fig. 11 and 12, the second end member 140 has at least one second lead-in portion 1421, the second end 112 has at least one second mating portion 1121, and the at least one second lead-in portion 1421 and the at least one second mating portion mate 1121 form a guide mating structure such that the second end member 140 can be mounted to the second end in a variety of circumferential assemblies.

Further, the second introduction portion 1421 is spirally extended in a circumferential direction of the second guide sleeve 142, particularly, spirally extended spiral along the inner circumferential wall in a direction away from the second fitting structure 141, so that the second introduction portion 1421 has a rotation direction, for example, a rotation direction of clockwise (or counterclockwise) rotation about the axis z of the shaft 110, thereby forming a second introduction direction. In this example, the second direction of introduction is the same as the first direction of introduction.

In this example, the first introduction direction and the second introduction direction are the same, but the present invention is not limited thereto, and in other examples, the rotation direction of the first introduction portion may be, for example, a non-spiral type or a linear type. Further, in other examples, the second direction of introduction may also be different from the first direction of introduction. The foregoing is illustrative only as an alternative example and is not to be construed as limiting the present disclosure.

As shown in fig. 12, the at least one second lead-in 1421 comprises two second lead-ins 1421, the two second lead-ins 1421 being identical in shape and size, such that the second end member can be mounted to the second end 112 in two circumferential assemblies.

Preferably, in the case where the introduction directions of the first introduction portions 1221 and the second introduction portions 1421 are the same, the two first introduction portions 1221 are different in size (corresponding to the difference in size of the first fitting portion 1111 and the second fitting portion 1121), the two second introduction portions 1421 are the same in size, and the second introduction portion 1421 is between the sizes of the two first introduction portions 1221.

The sizes of the two second guide parts of the driven end are between the sizes of the two first guide parts of the driving side, so that the free installation of a plurality of angles of the second end parts can be ensured, the reverse installation of the end parts on two sides can be avoided, and the correct orientation of the parts such as blades after the cleaning brush is installed can be effectively ensured.

In addition, the number of the second introduction portions may be three or more in other examples. The foregoing is illustrative only and is not to be construed as limiting the invention. Furthermore, it is preferred for the first end member and the second end member that two first lead-ins of different dimensions are provided on the drive side, since there is a requirement for an installation angle on the drive side, whereas the second end member on the driven side does not require a different-sized design, since the second mounting structure (in particular the bearing structure) on the driven side is freely rotatable relative to the shaft, which bearing structure, when mounted to the machine body of the automatic cleaning device, allows the rest of the cleaning brush to freely rotate relative to the bearing structure, and the driven side does not have a strong requirement for an assembly angle, so that in other examples the dimensions of the second lead-ins may also be identical.

By forming the guide fitting structure by the first and second introduction portions 1221 and 1421 and the first and second fitting portions 1111 and 1121, a more effective guide fitting structure can be realized. By the arrangement of the two first lead-in portions 1221 having different sizes, the second lead-in portion and the first lead-in portion have different sizes, so that the first end member can be mounted to the first end portion only in one circumferential fitting manner, and so that the second end member can be mounted to the second end portion in a plurality of circumferential fitting manners, the mounting angles of the first end member and the second end member with the shaft can be accurately determined, and a more effective mounting structure can be realized.

Further, the second locking portion 1422 is provided on the outer periphery of the second guide sleeve 142 of the second end member 140, for example, a groove portion recessed inward from the outer periphery of the second guide sleeve 142, and the second locking portion 1422 may be a through hole penetrating the second guide sleeve 142. Accordingly, the second end 112 is provided with a first locking mating part 1123, and the second locking part 1422 is mated with the second locking mating part 1123 such that the second end member 140 is locked to the second end 112 to form a locking mating structure.

As shown in fig. 12, the second end member 140 further includes a second guide shaft 144, where the second guide shaft 144 extends along an axis of the second guide sleeve 142, and a second guide hole (not shown) is disposed on an end surface of the second end 112 remote from the first end 111, and the second guide hole is coaxial with the shaft 110 and configured to receive the second guide shaft 144.

Further, the second end member 140 further comprises a second blocking structure 145, wherein the second blocking structure 145 is disposed on a side of the second guide sleeve 142 away from the shaft 110.

Specifically, the blocking structure 145 has an outer diameter greater than an outer diameter of the second guide sleeve 142. By arranging the blocking structure on the second end member, the winding such as garbage is wound on the blocking structure of the second end member, so that the winding is effectively prevented from winding to the shaft rod, and the winding can be directly taken down along with the disassembly of the end cover member when the end member is disassembled.

Optionally, the second guide sleeve 142 may be further provided with an indication portion 1423 configured to indicate a position of the second introduction portion 1421 on an outer circumference of the second guide sleeve 142 for indicating a rotational assembly direction of the second end member 140 to the shaft 110 and the second end 112 so that the second introduction portion is assembled in alignment with the second fitting portion.

Further, the second fitting structure 141 of the second end member 140 is configured in a polygonal shape corresponding to the number of brushes. In this example, the polygonal shape of the outer end surface of the second fitting structure 141 is a pentagon formed by combining straight lines and curved lines.

Preferably, the regular polygon shape of the outer end surface of the first end member 120 is different from the polygon shape of the outer end surface of the second fitting structure 141, so that the outer end surface shapes of the first end member and the second end member are different, the two ends can be distinguished more easily, and convenience of installation can be improved.

The cleaning brush of the present disclosure ensures that the drive end has a relatively fixed mounting direction by arranging the lead-in member of the drive end member with a unique circumferential assembly, which facilitates the controllable mounting angle of the roller brush, which would be particularly beneficial in some situations where there is a certain preset requirement for the direction or alignment of the subcomponents of the roller brush, especially the blades, for example in those situations where two present roller brushes are employed to form a double brush system, and there is a certain alignment requirement for their respective blades.

The cleaning brush of this disclosure forms the direction cooperation structure through the leading-in portion of the guide pin bushing inner wall of tip component and the tip of axostylus axostyle to form the locking cooperation structure through the locking portion of guide pin bushing periphery and the tip of axostylus axostyle, the direction cooperation structure with the locking cooperation structure is assisted the cooperation, can more effectively carry out leading-in installation, can realize more effectual direction cooperation structure, can realize more effective prevent slow-witted mounting structure, can improve the installation ease and the mounting structure stability of tip component, can optimize the mounting structure of tip component and axostylus axostyle and then optimize the overall structure of cleaning brush.

Furthermore, by the arrangement of the two first introduction portions having different sizes, the arrangement of the second introduction portion having different sizes from the first introduction portion makes it possible to mount the first end member to the first end portion only in one circumferential fitting manner, and makes it possible to mount the second end member to the second end portion in a plurality of circumferential fitting manners, the mounting angles of the first end member and the second end member to the shaft can be accurately determined, and a more effective mounting structure can be realized.

In addition, by providing the indication portions on the outer circumferences of the first guide sleeve and the second guide sleeve to indicate the rotational fitting directions of the first end portion member and the second end portion member to be attached to the first end portion and the second end portion of the shaft, the alignment fitting of the first introduction portion and the first fitting portion can be effectively ensured, and the alignment fitting of the second introduction portion and the second fitting portion can be effectively ensured.

Further, by the divisor of the number of sides of the regular polygon of the outer end surface of the first end member and the number of groups of the brush members of the automatic cleaning apparatus, it is possible to ensure that the orientations of the members such as the blades in the brush members of the cleaning brush are uniform after the cleaning brush is mounted to the main body of the automatic cleaning apparatus in the N directions.

In addition, through setting up the structure that blocks at the end component, make the direct winding of winding in the structure that blocks of end component, can effectively avoid winding to the axostylus axostyle.

The specific structure of the second rolling brush (also referred to as a hard brush or a cleaning brush) will be described in detail with reference to fig. 13-21, and the same structure and function have the same technical effects, and will not be described herein.

Fig. 13 is a perspective exploded view of an example of a cleaning brush provided in accordance with the present disclosure. Fig. 14 is a schematic cross-sectional structure of the cleaning brush of fig. 13. Fig. 15 is a perspective view of an example of an end member of the cleaning brush of fig. 13. Fig. 16 is a schematic perspective view of an example of the mating element of the shaft of fig. 13. Fig. 17 is a schematic perspective view of an example of a guide engagement structure of the engagement of the end member and the shaft of fig. 13. Fig. 18 is a structural exploded view of the guide engagement structure of fig. 17.

Referring to fig. 13 to 18, the cleaning brush 200 includes a shaft 210 having axially opposite first and second ends 211 and 212, at least one of the first and second ends 211 and 212 including a mating piece 213; a brush member 230 coaxially sleeved on the outer circumference of the shaft 210; and an end member 220 configured to be matingly mounted with the mating member 213, the end member 220 having a mounting structure 221 on a side thereof remote from the mating member 213.

Specifically, the fitting structure 221 includes, for example, a bearing structure 221″ and a transmission structure 221', and the fitting structure 221 is, for example, a transmission structure 221' when the end member 220 is an end member located on the driving side, i.e., the end member 220 is a first side end member 220' connected to the driving unit of the cleaning module, and the fitting structure 221 is, for example, a bearing structure 221' when the end member 220 is an end member located on the driven side, i.e., the end member 220 is a second side end member 220″ opposite to the first side end member 220 '.

The following mainly describes a connection and fitting relationship between the driving-side end member and the shaft, and a connection relationship between the driven-side end member and the shaft is similar.

As shown in fig. 14, an end surface of the end part of the fitting 213 facing the end part member 220 is provided with a receiving space 214, the fitting 213 is received in the receiving space 214, and a part of the end part member 220 is inserted into the receiving space 214 to be mounted in a matching manner with the fitting 213.

Specifically, the end surface of the fitting 213 near the fitting structure 221 is further away from the fitting structure 221 than the opening 2141 of the accommodating space 214, as can be seen in fig. 14.

Alternatively, the end surface of the brush member 230 near the mounting structure 221 is flush with the opening 2141 of the accommodating space 214, as shown in fig. 14. On one hand, the end part of the brush member is effectively supported, and the force applied when the floor is cleaned can be kept; on the other hand, the brush component can effectively protect the core rod, the internal matching piece and other installation matching three-dimensional structures, and prevent user experience loss caused by collision damage.

As shown in fig. 15, the end member 220 includes a guide bar 222, the guide bar 222 is located on a side of the fitting structure 221 near the shaft 210, and an end of the guide bar 222 remote from the fitting structure 221 has a guide portion 2221, and the guide portion 2221 is configured to form a rotating fitting structure with the fitting 213.

Specifically, the guide portion 2221 extends spirally in the circumferential direction of the guide rod 222 in a direction away from the fitting structure 221. The guide portion 2221 is configured in a spiral shape having a rotational direction, specifically, a spiral shape extending spirally (i.e., spirally extending) along the outer circumferential surface of the guide rod 222, such that the guide portion 2221 has a rotational direction, for example, a rotational direction rotating clockwise (or counterclockwise) about the axis of the shaft 210.

Referring to fig. 14 and 15, the end member 220 includes a guide bar 222 and at least one guide portion 2221, wherein the guide portion 2221 is provided on an outer circumferential surface of the guide bar 222, and the plurality of guide portions 2221 are uniformly distributed in a circumferential direction of the guide bar 222, such that the guide portion 2221 forms a rotation-fit structure with the fitting 213, as can be seen in fig. 14 and 17.

In the example of fig. 15, the guide portion 2221 is a groove etched from the outer peripheral surface of the guide bar 222 to form a convex portion. The guide portion 2221 is formed at an end of the guide bar 222 remote from the mounting structure 221.

Specifically, the number of the guide portions 2221 is plural. In the example of fig. 15, the number of the guide portions 2221 is five, and the five guide portions 2221 are the same in size.

It should be noted that, in other examples, the number of the guide portions may be three, four, six or more, and the guide portions may be different in size, which is described as an alternative example only, and is not to be construed as limiting the present disclosure. In addition, as for the formation of the guide portion, the guide portion may be a groove etched inward from the outer peripheral surface of the guide bar, which is described as an alternative example only and is not to be construed as limiting the present disclosure. Optionally, at least one of the shape, number, and size of the guide 211 is different.

Further, the end member 220 further comprises a guiding shaft 223, the guiding shaft 223 extends away from the mounting structure 221 from the guiding rod 222, and the end of the guiding shaft 223 away from the guiding rod 222 is provided with a buckle 2231.

In this embodiment, an end of the guide shaft 223, which is close to the assembly structure 221, is sleeved in the guide rod 222.

Specifically, the guide shaft 223 includes a latch 2231 disposed along an outer peripheral surface, where the latch 2231 is, for example, an annular groove, so that the latch 2231 forms a latch-fit structure with the mating member 213.

As shown in fig. 16, the engaging member 213 includes an engaging portion 2131 which engages with the shape of the guide portion 2221, and the engaging portion 2131 has a spiral groove for accommodating the guide portion 2221.

Specifically, the mating element 213 includes a main body portion 2130, the main body portion 2130 has a cavity, the main body portion 2130 includes a mating portion 2131 disposed in the cavity, the mating portion 2131 is a spiral groove extending along an inner wall of the cavity, and the mating portion 2131 and the guiding portion 2221 form a rotation mating structure, so that the guide rod of the end member and the mating element form a rotation mating mechanism, see fig. 17 in particular.

In this example, the number of the engaging portions 311 is the same as the number of the guide portions 211, for example, five.

In other examples, the mating portion may be a groove, and the guiding portion may be a protrusion. As for the number of the fitting portions, in other examples, three, four, six, or more may be also provided that the same number of the guide portions and the number of the fitting portions are satisfied, which is described only as an alternative example and is not to be construed as limiting the present disclosure.

Through add the guiding part at the outer peripheral face of guide arm for the guide arm of end component forms rotatory cooperation structure with the cooperation piece of axostylus axostyle, can guide the installation effectively, can realize effectual foolproof mounting structure, can improve end component's installation ease to can improve mounting structure's stability. Through the rotatory cooperation structure that the inside cooperation piece of guide arm and axostylus axostyle of end member formed to the cooperation guiding axle forms with the cooperation piece snap-fit structure, can guide the installation more effectively, can realize more effectual prevent slow-witted mounting structure, can further improve end member's installation ease, and can further improve mounting structure's stability.

In the example of fig. 16, the fitting 213 includes an extension 2132 connected to the main body 2130 and extending outwardly from the main body 2130, wherein the extension 2132 is closer to the center of the shaft 210 than the main body 2130, and the extension 2132 has a smaller outer diameter than the main body 2130.

As shown in fig. 17 and 18, the outer peripheral surface of the extension portion 2132 is provided with a plurality of ribs 21321 that are uniformly distributed, so that the outer peripheral surface of the extension portion 2132 forms a concave-convex surface for forming a corresponding mating structure with the interior of the shaft 210 (i.e., the shape of the interior of the shaft), so as to increase the contact surface between the mating member 213 and the interior of the shaft 210, thereby being more beneficial to adhering the mating member 213 in the accommodating space 214 of the shaft 210, increasing the bonding strength of the bonding structure between the mating member 213 and the shaft 210, and making the installation more stable.

The coupling structure between the engaging member 213 and the inside of the shaft 210 may be a step-like engaging structure. In other embodiments, the fitting 213, in its entirety or at least a portion of the assembly, may also be integrally formed with the shaft 210. The foregoing is illustrative of alternative examples and is not to be construed as limiting the present disclosure.

As shown in fig. 17, an end portion of the engaging piece 213 near the shaft center is provided with a locking portion 21322, and the locking portion 21322 is closer to the shaft center than the bead 21321. The engaging portion 21322 is, for example, a claw portion, and the engaging portion 21322 and the engaging piece 2231 (i.e., an annular groove portion) of the guide shaft 223 of the end member 220 form a snap-fit structure.

In the example of fig. 13, the end member 220 is provided with a blocking structure 225 for preventing the entanglement from being excessively extended away from the cleaning brush. The blocking structure 225 is disposed on a side closer to the fitting structure 221 (i.e., a side away from the shaft center side) than the guide bar 210.

Specifically, the blocking structure 225 has an outer diameter greater than the outer diameter of the guide bar 210, and the blocking structure 225 is spaced apart from the first end 211 of the shaft 210, see fig. 17 and 18.

By arranging the blocking structure on the end member, the winding is directly wound on the blocking structure of the end member, and winding of the winding to the shaft rod can be effectively avoided.

In another example, as shown in fig. 19, the end member 220 includes a first side end member 220' and a second side end member 220″ that are matingly mounted with the mating members 213 of the first end 211 and the second end 212, respectively, of the shaft 210, the shaft 210 is a rigid component, the brush member 230 is directly sleeved on the shaft 210, and the cleaning brush 200 is, for example, a hard brush. Optionally, the shaft 210 is a rigid component, and a rigid filler is filled between the brush member 230 and the shaft 210.

In this example, at least one of the shape, number, and size of the first guide portions 2221 'of the first side end member 220' (i.e., the end member 220 of fig. 14) and the second guide portions 2221 "of the second side end member 220″ are different.

In an alternative embodiment, the shape and size of the first guide portion 2221 'of the first side end member 220' and the shape and size of the second guide portion 2221 "of the second side end member 220" are the same, the number of the first guide portions 2221 'of the first side end member 220' is greater than the number of the second guide portions 2221 "of the second side end member 220", and the number of the second guide portions 2221 "of the second side end member 220" does not belong to a divisor of the number of the first guide portions 2221 'of the first side end member 220'. For example, the number of the first guide portions 2221 'of the first side end member 220' is five, and the number of the second guide portions 2221″ of the second side end member 220″ is two.

As shown in fig. 19 and 20, a first side end member 220 '(i.e., an end member 220 located at a driving side, a left side end shown in fig. 20) is mounted to the first end 210 of the shaft 210, the first side end member 220' includes a transmission structure 221', the transmission structure 221' is located further to the outside than the first blocking structure 225', and an end surface shape of the transmission structure 221' is a polygonal shape, such as a regular polygon. The transmission mechanism 221' is connected to a driving mechanism of the automatic cleaning apparatus.

In this example, the brush member 230 includes: a tubular member which is sleeved on the outer periphery of the shaft lever; and a plurality of brushes 232 extending from the outer surface of the cylindrical member in a direction away from the cylindrical member 231, the plurality of brushes 232 being uniformly arranged in the circumferential direction of the cylindrical member.

It should be noted that, in this example, the brush 232 includes at least one size of the first brush, for example, five groups of brushes, each group of brushes includes two sizes of the first brush, for example, the first brush is V-shaped and spiral-shaped. Since the brush member 230 in this example is substantially the same as the brush member 230 in the example of fig. 13, the description of the same portions is omitted.

Specifically, the number of first guide portions 2221 'of the first side end member 220' is a divisor of the number of brushes 232. For example, the number of the first guide portions 2221' is five, the brushes 232 are multiples of five, such as five groups, ten groups, etc., wherein each group includes two brushes or more brushes.

By setting the number of the first guide portions 2221' to be a divisor of the number of the groups of the brushes 232, when the rolling brushes are mounted in the rolling brush frame, the brushes 232 have a specific mounting angle so as to facilitate matching interference of the brushes corresponding to the two rolling brushes.

In the example of fig. 19, the number of the first guide portions 2221' is five, and the number of the groups of the brushes 232 is five.

As shown in fig. 20, the second side end member 220 "is mounted to the second end 212 of the shaft 210 (i.e., the end member on the driven side, the right side end shown in fig. 20), and the second side end member 220" includes a mounting structure (specifically, a bearing structure 221 "), the bearing structure 221" being rotatable relative to the shaft 210, and being connected to other structures of the cleaning apparatus (e.g., the body, etc.) by rotation of the bearing structure 221 "relative to the shaft.

Specifically, the first side end member 220 'is mounted to the first mating member 213' of the first end 211 inside the shaft 210, and the second side end member 220 "is mounted to the second mating member 213" of the second end 212 inside the shaft 210.

Note that, in the example of fig. 18, the shaft and the brush member have substantially the same structure as the shaft and the brush member in the example of fig. 13, and therefore, the description of the same portions is omitted. In addition, since the first fitting 213' in fig. 19 is substantially the same as the fitting 213 in fig. 16 in structure, the description of the same parts is omitted.

In the example of fig. 19, the first side end member 220 'includes a first guide bar 222', at least one first guide portion 2221', and a first guide shaft 223', wherein the first guide bar 222 'is provided with a plurality of first guide portions 2221', and the first guide portion 2221 'is a groove etched from an outer circumferential surface of the first guide bar 222' to form a protrusion. The first guide portion 2221' is formed at an end of the first guide bar 222' remote from the mounting structure 221 '.

As shown in fig. 20 and 21, the second side end member 220 "includes a second guide bar 222", at least one second guide portion 2221", and a second guide shaft 223", wherein the second guide bar 222 "is provided with a plurality of second guide portions 2221".

Alternatively, when the shape of the first guide portion 2221 'of the first side end member 220' and the shape of the second guide portion 2221 "of the second side end member 220" are the same, the number of the first guide portions 2221 'of the first side end member 220' is different from the number of the second guide portions 2221 "of the second side end member 220".

Alternatively, the number of the first guide portions 2221 'of the first side end member 220' is an odd number, and the number of the second guide portions 2221″ of the second side end member 220″ is an even number. Preferably, the number of the first guide portions 2221 'of the first side end member 220' and the number of the second guide portions 2221 "of the second side end member 220" are not about each other, so as to ensure that the side end members with the smaller number of the guide portions cannot be assembled to the mating pieces corresponding to the side end members with the larger number of the guide portions in a staggered manner, thereby ensuring that any one side end member cannot be assembled in a staggered manner, and realizing the maximum fool-proofing.

As shown in fig. 20 and 21, the second end 212 of the shaft 210 includes a second mating member 213 "that mates with a second guide portion 2221" of the second guide bar 222", the number of the second guide portions 2221" being two, and the second guide portion 2221 "being an end portion of the second guide bar 222" away from the bearing structure 221 "where a groove is etched from an outer circumferential surface of the second guide bar 222" to form a protrusion.

Specifically, the second fitting 213 "includes an extension 2132" connected to the main body 2130 "and extending outwardly from the main body 2130", the main body 2130 "having an outer diameter greater than the outer diameter of the extension 2132". The main body portion 2130 "includes a cavity, the main body portion 2130" includes a mating portion 2131 "disposed therein, the mating portion 2131" is a spiral groove extending along an inner wall of the cavity, and the mating portion 2131 "and the second guide portion 2221" form a rotational mating structure, such that the guide bar and the mating piece of the second side end member form a rotational mating mechanism.

As shown in fig. 20 and 21, the outer peripheral surface of the extension portion 2132 "of the second mating member 213" is provided with a plurality of ribs 21321 "uniformly distributed, so that the outer peripheral surface of the extension portion 2132" forms a concave-convex surface for forming a corresponding mating structure with the interior of the shaft 210 (i.e. the shape of the interior of the shaft), so as to increase the contact surface between the second mating member 213 "and the interior of the shaft 210, further facilitate the bonding of the second mating member 213" in the accommodating space of the shaft 210, increase the bonding strength of the bonding structure between the second mating member 213 "and the shaft 210, and make the installation more stable.

Further, an end portion of the second engaging piece 213″ near the shaft center side is provided with a fastening portion 21322", and the fastening portion 21322″ is closer to the shaft center side than the protruding rib 21321". The engaging portion 21322″ is, for example, a claw portion, and the engaging portion 21322″ and the engaging piece 2231 (i.e., the annular groove portion) of the guide shaft 223 of the second side end member 220″ form a snap-fit structure. .

In the example of fig. 19, the first side end member 220 'includes an assembly structure (specifically, a transmission structure 221'), a first guide shaft 223', one end of the first guide shaft 223' is sleeved on the first guide rod 222', the other end of the first guide shaft 223' is sleeved on a first guide hole of the first end 211', and the first guide hole is coaxially opened on an end surface of the first end 211'.

And the assembly structure 221 "of the second side end member 220" and the second guide bar 222 "are separate structures. Specifically, one end of the second guide shaft 223″ penetrates through the assembly structure (specifically, the bearing structure 221 ") of the second side end member 220″, and the other end of the second guide shaft 223″ is sleeved in a second guide hole of the second end 212, and the second guide hole is coaxially opened on the end surface of the first end 211.

Optionally, the first lateral end member 220 'is provided with a blocking structure 225', in particular between the assembly structure (in particular the transmission structure 221 ') and the first guide bar 222'. The second lateral end member 220 "is provided with a blocking structure 225", in particular between said mounting structure (in particular the bearing structure 221 ") and said second guide bar 222". The blocking structures of both side end members serve to prevent the windings from being excessively extended away from the brush member 230.

In this example, the outer end face of the first side end member 220' is configured in the shape of a first polygon corresponding to the number of brushes 232. Specifically, the end surface of the transmission structure 221 'of the first side end member 220' remote from the guide bar 222 has a regular polygon, and the number of sides of the regular polygon is the same as the number of the first guide portions 2221 'of the first side end member 220'. Meanwhile, the number of the first guide portions 2221 'of the first side end member 220' is a divisor of the number of the brushes 232.

So configured, the brush member 232 may have a specific mounting angle when the roller brush is mounted to the roller brush frame, and when there are a plurality of roller brushes of similar structure, such a design would be very advantageous for forming a mating relationship of the plurality of roller brushes with each other's blades, especially in the case where the blades of the two roller brushes need to be aligned, etc., the alignment of the blades may be ensured to achieve synchronous operation, interference, or staggering according to a certain posture, etc., so as to achieve different cleaning effect requirements.

Compared with the prior art, the cleaning brush disclosed by the invention forms a rotary matching structure through the guide part of the guide rod of the end part component and the matching piece inside the shaft rod, and is matched with the snap-fit structure formed by the guide shaft and the matching piece, so that the cleaning brush can be more effectively guided and installed, can realize a more effective foolproof installation structure, can further improve the installation simplicity of the end part component, and can further improve the stability of the installation structure.

It should be noted that: in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The system or the device disclosed in the embodiments are relatively simple in description, and the relevant points refer to the description of the method section because the system or the device corresponds to the method disclosed in the embodiments.

The above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims

1. An automatic cleaning apparatus, comprising:

a moving platform configured to move on the operation surface;

2. The automated cleaning apparatus of claim 1, wherein,

the second shaft member has an outer diameter smaller than an outer diameter of the first filler.

3. The automated cleaning apparatus of claim 1, wherein,

The outer diameter of the second shaft member is greater than the inner diameter of the first filler.

4. The robotic cleaning device of claim 1, wherein the first filler lowest point lies in a plane that is lower than a plane in which the second shaft member lowest point lies.

5. The robotic cleaning device of claim 1, wherein the first brush member comprises:

6. The robotic cleaning device of claim 5, wherein the second brush member comprises:

7. The automated cleaning apparatus of claim 6, wherein,

the first brush extends from the first tubular member outer surface in a direction away from the first tubular member a furthest distance less than the second brush extends from the second tubular member outer surface in a direction away from the second tubular member.

8. The robotic cleaning device of claim 6, wherein an outer contour of the first brush member formed furthest from an outer surface of the first tubular member extending in a direction away from the first tubular member forms an outer diameter of the first roller brush, and wherein an outer contour of the second brush member formed furthest from an outer surface of the second tubular member extending in a direction away from the second tubular member forms an outer diameter of the second roller brush, the outer diameter of the first roller brush being approximately equal to the outer diameter of the second roller brush.

9. The automatic cleaning apparatus of claim 8, wherein a distance between an axis of the first roller brush and an axis of the second roller brush is not greater than an outer diameter of the first roller brush and/or the second roller brush.

10. The robotic cleaning device of claim 6, wherein an outer contour of the first brush member formed furthest from the outer surface of the first tubular member extending in a direction away from the first tubular member forms an outer diameter of the first roller brush, and an outer contour of the second brush member formed furthest from the outer surface of the second tubular member extending in a direction away from the second tubular member forms an outer diameter of the second roller brush, a distance between an axis of the first roller brush and an axis of the second roller brush being no greater than half of a sum of the outer diameters of the first roller brush and the second roller brush.