CN220212831U - Rolling brush assembly and sweeping robot - Google Patents

Abstract

The utility model discloses a rolling brush assembly and a sweeping robot. The rolling brush assembly comprises a rolling brush rod, and a brush body is arranged outside the rolling brush rod; the rolling brush rod is provided with a chute extending along the axial direction of the rolling brush rod; the rolling brush rod core is arranged in the rolling brush rod; the rolling brush rod core is provided with a forward spiral groove and a reverse spiral groove which extend along the axial direction of the rolling brush rod core, and two ends of the forward spiral groove and the reverse spiral groove are connected to form a closed spiral groove; a blade assembly comprising a blade holder and at least one blade assembled to the blade holder; the blade holder can extend into the chute and is matched with the closed spiral groove, and the blade at least partially extends out of the chute; the rolling brush rod and the rolling brush rod core can be arranged in a relative rotation mode, so that the blade assembly can be driven to do repeated motion along the closed spiral groove and the sliding groove, windings such as hair can be cut continuously, high cutting efficiency is achieved, and the sweeping robot can work normally and continuously.

Description

Rolling brush assembly and sweeping robot

Technical Field

The utility model relates to the technical field of sweeping robots, in particular to a rolling brush assembly and a sweeping robot.

Background

The floor sweeping robot generally adopts a brushing and vacuum suction mode to collect and absorb the ground sundries into the self garbage storage box, so that the function of cleaning the ground is completed. The rolling brush of the sweeper is arranged at the bottom of the sweeper and rotates to clean the ground. When the floor sweeping machine cleans the ground, hair on the ground can be wound on the rolling brush, so that the floor sweeping machine is large in noise and working current, the cleaning effect is affected, and the rolling brush rod is easy to clamp when the more the hair is wound and the cleaning is not timely performed. When the rolling brush rod is cleaned, the rolling brush rod is required to be disassembled, and then the scissors or the bird knife is used for cutting off the hair and then the hair is manually cleaned, so that time and labor are wasted.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the technical problems of providing a rolling brush assembly and a sweeping robot, wherein a rolling brush rod and a rolling brush rod core can be arranged in a relative rotation way, so that a blade assembly can reciprocate in a chute under the action of the chute and a closed spiral groove to cut off windings such as hair, lines and the like wound on the rolling brush rod, prevent the windings and the like from being wound and accumulated on the rolling brush assembly, and ensure the normal and continuous work of the rolling brush assembly without manual cleaning.

(II) technical scheme

The utility model solves the technical problems that the proposal adopted is a rolling brush component which comprises

The outer part of the rolling brush rod is provided with a brush body; the rolling brush rod is provided with a chute extending along the axial direction of the rolling brush rod;

the rolling brush rod core is arranged in the rolling brush rod; the rolling brush rod core is provided with a forward spiral groove and a reverse spiral groove which extend along the axial direction of the rolling brush rod core, and two ends of the forward spiral groove and two ends of the reverse spiral groove are connected to form a closed spiral groove;

a blade assembly comprising a blade holder and at least one blade assembled on the blade holder; the blade holder can extend into the sliding groove and is matched with the closed spiral groove, and at least part of the blade extends out of the sliding groove, so that when the blade holder slides in the sliding groove, the part of the blade extending out of the sliding groove can separate a winding object wound on the brush body;

the rolling brush rod and the rolling brush rod core can be arranged in a relative rotation mode, so that the blade assembly can be driven to repeatedly move along the closed spiral groove and the sliding groove.

Specifically, the round brush stick is provided with a plurality of brush bodies in its axial, and is provided with the multiunit brush body along the axial on the outer wall of round brush stick, is located and is provided with between two arbitrary groups brush bodies the spout, then the blade can cut off the winding thing of winding on the brush body at the blade holder in-process of sliding along the spout, and the winding thing of cutting off is sucked into the dust collection intracavity of sweeping the robot under the suction of round brush stick rotation and host computer fan.

By adopting the scheme, the rolling brush rod and the rolling brush rod core can be arranged in a relative rotation manner, the blade assembly can reciprocate in the chute under the action of the chute and the closed spiral groove, windings such as hair, lines and the like wound on the rolling brush rod are cut off, winding and stacking of the windings and the like on the rolling brush assembly are prevented, manual cleaning is not needed, and normal and continuous work of the rolling brush assembly is ensured.

Further, the blade package can be followed the spout is done reciprocating motion, just the blade includes two cutting edges that deviate from each other that set up in the axial of spout, then can be at the blade holder along the spout in-process of reciprocating motion, can cut off the winding thing of winding on the brush body all the time, and the effect is better.

Further, the blade holder comprises a blade holder body for accommodating the blade, and an insertion part formed at the bottom of the blade holder body, wherein the insertion part can be fitted in the closed spiral groove; the blade holder body is provided with two grooves which are mutually deviated and extend from the cutting edge in the axial direction of the sliding groove, and one end of the blade holder body, which is far away from the insertion part, is provided with a reversed hook-shaped protection part at the groove, so that the whole blade holder body is in an X shape.

Preferably, both ends of the chute comprise mounting grooves with the width larger than that of the chute; when the blade holder is in sliding process, the insertion part of the blade holder is abutted against the joint of the two ends of the forward spiral groove and the reverse spiral groove, the blade holder body is partially arranged in the sliding groove, and the blade holder body is partially arranged in the mounting groove; the axial dimension of the mounting groove is larger than or equal to the axial dimension of the blade holder, so that the blade holder can be conveniently dismounted on the rolling brush rod, and the operation is convenient.

By adopting the scheme, the blade can not be exposed out of the blade holder body due to the arrangement of the protection part, so that a user can be prevented from hurting hands in the using process, and the blade holder is safer.

Further, the width of the chute in the longitudinal direction is smaller than the dimension of the insertion portion in the direction.

Preferably, the cross section of the insertion part is circular so as to be better fit in the positive spiral groove and the negative spiral groove; the diameter of the insertion part is larger than the width of the sliding groove in the longitudinal direction, so that the blade holder can be prevented from being separated from the sliding groove in the sliding process along the sliding groove, and the safety is improved.

Further, the rolling brush assembly further comprises a driving assembly connected with the rolling brush rod to drive the rolling brush rod to rotate.

Preferably, the driving assembly comprises a driving motor and a reduction gear set connected to the output end of the driving motor; the speed reduction gear set comprises a first transmission gear connected to the output end of the driving motor, a second transmission gear meshed with the first transmission gear for transmission, a third transmission gear coaxially rotating with the second transmission gear, a fourth transmission gear meshed with the third transmission gear for transmission, a fifth transmission gear coaxially rotating with the fourth transmission gear, a sixth transmission gear meshed with the fifth transmission gear for transmission, and a seventh transmission gear meshed with the sixth transmission gear for transmission, and the seventh transmission gear is connected with the rolling brush rod for driving the rolling brush rod to do rotary motion; the first transmission gear is a pinion, the tooth diameter of the second transmission gear is larger than that of the first transmission gear, the tooth diameter of the third transmission gear is smaller than that of the second transmission gear, the tooth diameter of the fourth transmission gear is larger than that of the third transmission gear, the tooth diameter of the fifth transmission gear is smaller than that of the fourth transmission gear, the tooth diameter of the sixth transmission gear is larger than that of the fifth transmission gear, and the tooth diameter of the seventh transmission gear is close to that of the sixth transmission gear; the output of the driving motor is subjected to three times of deceleration treatment by the deceleration gear set, and the output torque of the seventh transmission gear is increased, so that the rolling brush rod is driven more stably.

Further, the rolling brush rod comprises a first end cover and a second end cover which are positioned at two ends in the axial direction of the rolling brush rod, and the first end cover and the second end cover are fixedly connected at two ends of the rolling brush rod; and the first end cover or the second end cover is in driving connection with the driving assembly.

Preferably, the first end cover is in driving connection with the driving assembly, wherein the first end cover comprises a rectangular connecting portion, and correspondingly, the seventh transmission gear comprises a matching portion matched with the connecting portion, and the inner wall of the matching portion is of a tooth-shaped structure, so that connection between the matching portion and the connecting portion is more fixed, and the driving assembly can drive the rolling brush rod to rotate.

The utility model solves the technical problems by adopting a scheme that the sweeping robot comprises a host machine and the rolling brush assembly assembled on the host machine.

By adopting the scheme, the rolling brush rod in the rolling brush assembly is driven to rotate through the driving assembly, and meanwhile, the rolling brush rod core is relatively fixedly arranged so as to realize the rotary motion of the rolling brush rod relative to the rolling brush rod core; the blade frame of blade subassembly rotates along with the round brush stick is synchronous, simultaneously, the insert portion of blade frame rotates at the closed helicla flute on the round brush stick core, under the combined action of the spout on the round brush stick and the closed helicla flute on the round brush stick core, the blade frame can be reciprocating rectilinear motion in the spout, the blade on the blade frame is reciprocating rectilinear motion in step relatively to the round brush stick like this, and then can cut windings such as hair continuously, have high cutting efficiency, this robot of sweeping floor can normally, continuous work.

Further, the host machine comprises a containing groove for containing the rolling brush assembly, the containing groove is vertically communicated with the outside and a dust collecting cavity in the host machine, and at least part of the brush body can extend out of the containing groove to perform cleaning work.

Further, the host comprises a host shell, wherein the rolling brush rod is in rotary connection with the host shell relatively, and the rolling brush rod core is fixedly connected with the host shell relatively.

Further, one end of the rolling brush rod core is connected with a rotating shaft, the rotating shaft part extends out of the rolling brush rod, and one end of the rotating shaft extending out of the rolling brush rod is connected with a limiting piece; the host shell comprises a clamping cavity for clamping the limiting piece so as to lock the rolling brush rod core, and the rolling brush rod core is fixedly arranged relative to the host.

Preferably, one end of the collar of the rolling brush rod core is also connected with a rotating shaft, and bearings are arranged at the parts of the two rotating shafts positioned in the first end cover and the second end cover, so that the rolling brush rod rotates on the rolling brush rod core more smoothly; the limiting piece and the second end cover can be rotatably connected so as to keep the rolling brush rod rotating on the rolling brush rod core.

(III) beneficial effects

Compared with the prior art, the rolling brush assembly and the sweeping robot are designed, the rolling brush rod and the rolling brush rod core can be arranged in a relative rotation mode, the blade assembly can do reciprocating motion in the sliding groove under the action of the sliding groove and the closed spiral groove, windings such as hair, lines and the like wound on the rolling brush rod are cut off, the windings and the like are prevented from being wound and accumulated on the rolling brush assembly, manual cleaning is not needed, normal and continuous work of the rolling brush assembly is guaranteed, and accordingly the sweeping robot can work normally and continuously.

Drawings

FIG. 1 is a schematic view of a rolling brush assembly according to a first embodiment;

FIG. 2 is an assembled schematic view of a roller brush bar and a roller brush bar core according to the first embodiment;

FIG. 3 is a cross-sectional view of a roll brush bar and roll brush bar core of the first embodiment;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is an assembled schematic view of a roller brush bar core and blade assembly according to the first embodiment;

FIG. 6 is a schematic diagram of a driving assembly according to a first embodiment;

FIG. 7 is a schematic diagram of a driving assembly according to the first embodiment;

fig. 8 is a schematic view of a sweeping robot according to a second embodiment;

fig. 9 is a schematic diagram of a host housing according to the second embodiment;

fig. 10 is an enlarged schematic view at B in fig. 9.

Reference numerals illustrate: 1. a roller brush assembly; 11. a rolling brush rod; 111. a brush body; 112. a chute; 113. a first end cap; 113-1, a connection portion; 114. a second end cap; 115. a mounting groove; 12. a roll brush rod core; 121. a positive rotation spiral groove; 122. a reverse spiral groove; 123. closing the spiral groove; 124. a rotating shaft; 125. a limiting piece; 126. a bearing; 13. a blade assembly; 131. a blade holder; 131-1, a cartridge body; 131-2, an insertion portion; 131-3, a protection part; 132. a blade; 132-1, knife edge; 14. a drive assembly; 141. a driving motor; 142. a reduction gear set; 142-1, a first transmission gear; 142-2, a second transmission gear; 142-3, a third transmission gear; 142-4, a fourth transmission gear; 142-5, a fifth transmission gear; 142-6, a sixth transmission gear; 142-7, a seventh transmission gear; 142-7a, mating portion; 2. a host; 21. a receiving groove; 22. a main body case; 221. and a clamping cavity.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiment one:

as shown in fig. 1 to 7, a rolling brush assembly of the present embodiment includes a rolling brush bar 11, the outside of which is provided with a brush body 111; the rolling brush rod 11 is provided with a chute 112 extending along the axial direction thereof; a roll brush bar core 12 provided in the roll brush bar 11; the rolling brush rod core 12 is provided with a forward spiral groove 121 and a reverse spiral groove 122 which extend along the axial direction of the rolling brush rod core, and two ends of the forward spiral groove 121 and the reverse spiral groove 122 are connected to form a closed spiral groove 123; a blade assembly 13 including a blade holder 131 and one blade 132 assembled to the blade holder 131; the blade holder 131 can extend into the sliding slot 112 and is matched with the closed spiral slot 123, and the blade 132 partially extends out of the sliding slot 112, so that when the blade holder 131 slides in the sliding slot 112, the part of the blade 132 extending out of the sliding slot 112 can separate the windings wound on the brush body 111; wherein the rolling brush rod 11 and the rolling brush rod core 12 can be relatively rotatably arranged to drive the blade assembly 13 to repeatedly move along the closed spiral groove 123 and the sliding groove 112. Specifically, the roller brush 11 is provided with a plurality of brush bodies 111 in the axial direction thereof, and a plurality of groups of brush bodies 111 are provided on the outer wall of the roller brush 11 along the axial direction, the sliding groove 112 is provided between any two groups of brush bodies 111, so that the blade 132 can cut off the winding wound on the brush bodies 111 in the sliding process of the blade holder 131 along the sliding groove 112, and the cut-off winding is sucked into the dust collecting cavity of the sweeping robot under the rotation of the roller brush 11 and the suction force of the fan of the host machine 2. By adopting the scheme, the rolling brush rod 11 and the rolling brush rod core 12 can relatively rotate, and then the blade component 13 can reciprocate in the chute 112 under the action of the chute 112 and the closed spiral groove 123, so that windings such as hair, lines and the like wound on the rolling brush rod 11 are cut off, winding and accumulation of the windings and the like on the rolling brush component 1 are prevented, manual cleaning is not needed, and normal and continuous work of the rolling brush component 1 is ensured.

Further, the blade 132 can move repeatedly along the sliding slot 112, and the blade 132 includes two blades 132-1 facing away from each other and disposed in the axial direction of the sliding slot 112, so that the winding wound on the brush 111 can be cut off all the time during the reciprocating movement of the blade holder 131 along the sliding slot 112, and the effect is better. Further, the blade holder 131 includes a blade holder body 131-1 for accommodating the blade 132, and an insertion portion 131-2 formed at the bottom of the blade holder body 131-1, the insertion portion 131-2 being fittable into the closed spiral groove 123; wherein, the blade holder body 131-1 is provided with two slots which are away from each other and extend from the blade-supplying edge 132-1 in the axial direction of the chute 112, and a protecting part 131-3 which is in a reversed hook shape is arranged at the slot of one end of the blade holder body 131-1 away from the inserting part 131-2, so that the blade holder body 131-1 is in an X shape as a whole. Preferably, both ends of the chute 112 include mounting grooves 115 having a width greater than that of the chute 112; when the blade holder 131 is in sliding contact with the connection part of the two ends of the forward spiral groove 121 and the reverse spiral groove 122, the blade holder body 131-1 is partially placed in the sliding groove 112 and partially placed in the mounting groove 115; the dimension of the mounting groove 115 in the axial direction is slightly larger than that of the blade holder 131 in the axial direction, so that the blade holder 131 can be conveniently assembled and disassembled on the rolling brush rod 11, and the operation is convenient. By adopting the above scheme, the blade 132 can not expose the blade holder body 131-1 due to the arrangement of the protecting part 131-3, so that the hand injury of a user in the use process can be prevented, and the safety is improved. Further, the width of the slide groove 112 in the longitudinal direction is smaller than the dimension of the insertion portion 131-2 in the direction. Preferably, the cross section of the insertion part 131-2 is circular so as to be better fitted in the forward spiral groove 121 and the reverse spiral groove 122; the diameter of the insertion portion 131-2 is larger than the width of the sliding slot 112 in the longitudinal direction, so that the blade holder 131 can be prevented from being separated from the sliding slot 112 during sliding along the sliding slot 112, and the safety is improved.

Further, the rolling brush assembly 1 further comprises a driving assembly 14 connected with the rolling brush rod 11 to drive the rolling brush rod 11 to rotate. Preferably, the driving assembly 14 includes a driving motor 141 and a reduction gear set 142 connected to an output end of the driving motor 141; the reduction gear set 142 comprises a first transmission gear 142-1 connected to the output end of the driving motor 141, a second transmission gear 142-2 meshed with the first transmission gear 142-1 for transmission, a third transmission gear 142-3 coaxially rotated with the second transmission gear 142-2, a fourth transmission gear 142-4 meshed with the third transmission gear 142-3 for transmission, a fifth transmission gear 142-5 coaxially rotated with the fourth transmission gear 142-4, a sixth transmission gear 142-6 meshed with the fifth transmission gear 142-5, and a seventh transmission gear 142-7 meshed with the sixth transmission gear 142-6, wherein the seventh transmission gear 142-7 is connected with the rolling brush rod 11 for driving the rolling brush rod 11 to rotate; the first transmission gear 142-1 is a pinion, the tooth diameter of the second transmission gear 142-2 is larger than that of the first transmission gear 142-1, the tooth diameter of the third transmission gear 142-3 is smaller than that of the second transmission gear 142-2, the tooth diameter of the fourth transmission gear 142-4 is larger than that of the third transmission gear 142-3, the tooth diameter of the fifth transmission gear 142-5 is smaller than that of the fourth transmission gear 142-4, the tooth diameter of the sixth transmission gear 142-6 is larger than that of the fifth transmission gear 142-5, and the tooth diameter of the seventh transmission gear 142-7 is close to that of the sixth transmission gear 142-6; the reduction gear set 142 performs three reduction processes on the output of the driving motor 141 and increases the output torque of the seventh transmission gear 142-7 so that the driving of the rolling brush bar 11 is smoother. Further, the rolling brush rod 11 comprises a first end cover 113 and a second end cover 114 which are positioned at two ends in the axial direction of the rolling brush rod, and the first end cover 113 and the second end cover 114 are fixedly connected at two ends of the rolling brush rod 11; moreover, the first end cover 113 is in driving connection with the driving assembly 14, where the first end cover 113 includes a rectangular connection portion 113-1, and correspondingly, the seventh transmission gear 142-7 includes a mating portion 142-7a mated with the connection portion 113-1, and an inner wall of the mating portion 142-7a is in a tooth-shaped structure, so that the connection between the mating portion 142-7a and the connection portion 113-1 is more fixed, so that the driving assembly 14 can drive the rolling brush rod 11 to rotate.

Embodiment two:

as shown in fig. 8-10, the sweeping robot of the present embodiment includes a host 2 and the rolling brush assembly 1 assembled on the host 2. By adopting the above scheme, the driving component 14 drives the rolling brush rod 11 in the rolling brush component 1 to rotate, and meanwhile, the rolling brush rod core 12 is relatively fixedly arranged so as to realize the rotary motion of the rolling brush rod 11 relative to the rolling brush rod core 12; the blade holder 131 of the blade assembly 13 rotates synchronously along with the rolling brush rod 11, meanwhile, the insertion part 131-2 of the blade holder 131 rotates on the closed spiral groove 123 on the rolling brush rod core 12, the blade holder 131 can do reciprocating linear motion in the sliding groove 112 under the combined action of the sliding groove 112 on the rolling brush rod 11 and the closed spiral groove 123 on the rolling brush rod core 12, and therefore the blade 132 on the blade holder 131 does synchronous reciprocating linear motion relative to the rolling brush rod 11, windings such as hair can be cut continuously, high cutting efficiency is achieved, and the sweeping robot can work normally and continuously.

Further, the main unit 2 includes a receiving groove 21 for receiving the rolling brush assembly 1, the receiving groove 21 is vertically penetrated to communicate with the outside and a dust collecting chamber in the main unit 2, and at least a portion of the brush body 111 can extend out of the receiving groove 21 to perform cleaning operation. Further, the host 2 includes a host housing 22, wherein the rolling brush rod 11 is rotatably connected with respect to the host housing 22, and the rolling brush rod core 12 is fixedly connected with respect to the host housing 22. Further, one end of the rolling brush rod core 12 is connected with a rotating shaft 124, a part of the rotating shaft 124 extends out of the rolling brush rod 11, and one end of the rotating shaft 124 extending out of the rolling brush rod 11 is connected with a limiting piece 125; the main machine housing 22 includes a locking cavity 221 for locking the rolling brush bar core 12, so as to fix the rolling brush bar core relative to the main machine 2. Preferably, one end of the collar of the rolling brush rod core 12 is also connected with a rotating shaft 124, and the parts of the two rotating shafts 124 located in the first end cover 113 and the second end cover 114 are respectively provided with a bearing 126, so that the rolling brush rod 11 rotates on the rolling brush rod core 12 more smoothly; the limiting member 125 and the second end cap 114 are rotatably connected to maintain the rotation of the rolling brush bar 11 on the rolling brush bar core 12.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (10)

1. A roll brush assembly, characterized in that: the rolling brush assembly (1) comprises

A rolling brush bar (11) with a brush body (111) arranged outside; a sliding groove (112) extending along the axial direction of the rolling brush rod (11) is arranged on the rolling brush rod;

a rolling brush rod core (12) arranged in the rolling brush rod (11); the rolling brush rod core (12) is provided with a forward spiral groove (121) and a reverse spiral groove (122) which extend along the axial direction of the rolling brush rod core, and two ends of the forward spiral groove (121) and the reverse spiral groove (122) are connected to form a closed spiral groove (123);

a blade assembly (13) comprising a blade holder (131) and at least one blade (132) assembled on the blade holder (131); the blade holder (131) can extend into the sliding groove (112) and is matched with the closed spiral groove (123), and the blade (132) at least partially extends out of the sliding groove (112);

the rolling brush rod (11) and the rolling brush rod core (12) can be arranged in a relative rotation mode, so that the blade assembly (13) can be driven to move repeatedly along the closed spiral groove (123) and the sliding groove (112).

2. The roll brush assembly of claim 1, wherein: the blade (132) can move repeatedly along the chute (112), and the blade (132) comprises two blades (132-1) which are arranged in the axial direction of the chute (112) and are away from each other.

3. The roll brush assembly of claim 2, wherein: the blade holder (131) comprises a blade holder body (131-1) for accommodating the blade (132), and an insertion portion (131-2) formed at the bottom of the blade holder body (131-1), the insertion portion (131-2) being fittable within the closed helical groove (123); wherein, the blade holder body (131-1) is provided with two grooves which are mutually deviated and extend out of the blade supply edge (132-1) in the axial direction of the chute (112), and one end of the blade holder body (131-1) which is far away from the insertion part (131-2) is provided with a reversed hook-shaped protection part (131-3) at the groove.

4. A roller brush assembly according to claim 3, wherein: the width of the sliding groove (112) in the longitudinal direction is smaller than the dimension of the insertion part (131-2) in the longitudinal direction.

5. The roll brush assembly of claim 1, wherein: the rolling brush assembly (1) further comprises a driving assembly (14) connected with the rolling brush rod (11) to drive the rolling brush rod (11) to rotate.

6. The roll brush assembly of claim 5, wherein: the rolling brush bar (11) comprises a first end cover (113) and a second end cover (114) which are positioned at two ends in the axial direction of the rolling brush bar; and, the first end cover (113) or the second end cover (114) is in driving connection with the driving assembly (14).

7. The utility model provides a robot sweeps floor which characterized in that: a roll brush assembly (1) according to any of the preceding claims 1-6, comprising a host (2) and being assembled on said host (2).

8. The robot cleaner of claim 7, wherein: the main machine (2) comprises a containing groove (21) for containing the rolling brush assembly (1), the containing groove (21) is communicated with the outside and a dust collecting cavity in the main machine (2), and at least part of the brush body (111) can extend out of the containing groove (21).

9. The robot cleaner of claim 7, wherein: the main machine (2) comprises a main machine shell (22), wherein the rolling brush rod (11) is in rotary connection with the main machine shell (22), and the rolling brush rod core (12) is fixedly connected with the main machine shell (22).

10. The robot cleaner of claim 9, wherein: one end of the rolling brush rod core (12) is connected with a rotating shaft (124), part of the rotating shaft (124) extends out of the rolling brush rod (11), and one end of the rotating shaft (124) extending out of the rolling brush rod (11) is connected with a limiting piece (125); the main machine shell (22) comprises a clamping cavity (221) for clamping the limiting piece (125) so as to lock the rolling brush rod core (12).