CN216724419U - Cleaning robot and rolling brush component thereof - Google Patents

Abstract

The utility model relates to a cleaning robot and a rolling brush assembly thereof. The roller brush assembly includes a roller brush frame defining a roller brush chamber and a roller brush. The round brush includes round brush main part and coupling assembling. The connecting assembly is moved between a first position and a second position by rotation. In the first position, the connection assembly is connected to the roll brush frame. In the second position, the connection assembly is detachable from the roll brush frame. The connecting assembly comprises one of a positioning groove and a head telescopic positioning piece, and the rolling brush frame comprises the other of the positioning groove and the head telescopic positioning piece. When the positioning groove is arranged at the first position, the head part of the head part telescopic positioning piece is arranged in the positioning groove, and when the positioning groove is arranged at the second position, the head part of the head part telescopic positioning piece is separated from the positioning groove. The connecting assembly comprises a lug and one of the guide sliding grooves which are matched with each other, and the rolling brush frame comprises the other of the lug and the guide sliding groove. In the first position, the guide chute limits the lug to relatively move along the length direction of the roller brush cavity, and in the second position, the lug can be separated from the guide chute.

Description

Cleaning robot and rolling brush component thereof

Technical Field

The application relates to the technical field of household appliances, in particular to a cleaning robot and a rolling brush assembly thereof.

Background

As the living standard is improved, people have an increasing demand for a cleaning robot, and a roll brush, which is an important part of the cleaning robot, can clean foreign materials and dust adhered to the ground. However, since the roll brush is a consumable and a large amount of foreign materials are adhered to the brush bristles after a long time use, the roll brush is required to be frequently disassembled to be washed or replaced.

Among the prior art, dismantle and install the round brush and can involve many parts, the operating procedure is complicated, needs user's both hands operation even with the help of the instrument, still can need to dismantle the bottom plate earlier just can take out the round brush, therefore the installation of round brush with dismantle very inconvenient and time-consuming, user experience feels relatively poor.

SUMMERY OF THE UTILITY MODEL

The application provides a cleaning robot and round brush subassembly thereof to overcome the difficult problem of dismantling and installing of round brush among the prior art.

In order to solve the above problems, one technical solution adopted by the present application is to provide a roll brush assembly. This round brush subassembly includes: a rolling brush frame and a rolling brush. The roller brush frame defines a roller brush cavity. The round brush includes round brush main part and coupling assembling. The connecting assembly is rotatably connected to one end of the rolling brush main body, and the rolling brush main body is at least partially accommodated in the rolling brush cavity. The connecting assembly is moved between a first position and a second position by rotation. In the first position, the connection assembly is connected to the roll brush frame. In the second position, the connection assembly is disengageable from the roll brush frame. The connecting assembly comprises one of the positioning groove and the head telescopic positioning piece which are matched with each other, and the rolling brush frame comprises the other one of the positioning groove and the head telescopic positioning piece. When the positioning groove is arranged at the first position, the head part of the head part telescopic positioning piece is arranged in the positioning groove, and when the positioning groove is arranged at the second position, the head part of the head part telescopic positioning piece is separated from the positioning groove. The connecting assembly comprises a lug and one of the guide sliding grooves which are matched with each other, and the rolling brush frame comprises the other of the lug and the guide sliding groove. In the first position, the guide groove limits the lug to move relatively along the length direction of the rolling brush cavity, and in the second position, the lug can be separated from the guide groove.

In order to solve the above problem, another technical solution adopted by the present application is to provide a cleaning robot. The cleaning robot comprises a driving device and the rolling brush assembly. The driving device drives the rolling brush main body of the rolling brush assembly to rotate.

The beneficial effect of this application is: be different from prior art's condition, the round brush easy dismounting of this application is quick, only needs to make coupling assembling break away from the round brush frame with the rotatory certain angle of coupling assembling, then grasps coupling assembling and can take out the round brush main part toward drawing outward. The operation can be completed only by reversely carrying out the operation during installation.

Drawings

To more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 illustrates an exploded perspective view of a cleaning robot according to an embodiment of the present application;

FIG. 2 illustrates a schematic view of a cleaning robot with a linkage assembly in a first position according to an embodiment of the present application;

FIG. 3 shows a schematic view of a cleaning robot with a linkage assembly in a second position according to an embodiment of the present application;

FIG. 4 illustrates an exploded perspective view of a roller brush according to an embodiment of the present application;

FIG. 5 illustrates a perspective view of a connection assembly according to an embodiment of the present application;

FIG. 6 illustrates a side view of a connection assembly according to an embodiment of the present application;

FIG. 7 illustrates a top view of a cleaning robot in accordance with an embodiment of the present application;

FIG. 8 shows the cleaning robot rim when the roll brush is disassembled according to the embodiment of FIG. 7 of the present application;

FIG. 9 is a schematic sectional view of the cleaning robot along line E-E in the roll brush mounted state according to the embodiment of the present application shown in FIG. 7;

FIG. 10 illustrates a cross-sectional view of a retractable-head set screw in accordance with an embodiment of the present application;

FIG. 11 illustrates a cross-sectional view of the cleaning robot shown in FIG. 6 along line F-F;

FIG. 12 illustrates an enlarged schematic view at G of FIG. 11 in accordance with an embodiment of the present application;

FIG. 13 illustrates an enlarged schematic view at H of FIG. 11 in accordance with an embodiment of the present application;

FIG. 14 illustrates an enlarged schematic view at H of FIG. 11 according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The present application will now be described in further detail by way of the following detailed description in conjunction with the accompanying drawings.

Referring to fig. 1, there is shown an exploded perspective view of a cleaning robot 10 provided by the present application. As shown in fig. 1, the cleaning robot 10 includes a roll brush assembly 20 for sweeping the floor.

Specifically, the roll brush assembly 20 includes a roll brush 210 and a roll brush frame 220 for supporting the roll brush 210.

Specifically, the roll brush 210 includes a connection assembly 212 and a roll brush body 214. The connecting member 212 is rotatably connected to one end of the roller brush body 214. In fig. 1, the connection assembly 212 is shown in the form of a swivel cap 2120. A rotary handle 2122 is also provided on the rotary cover 2120 to facilitate a user to rotate the rotary cover 2120 by turning the rotary handle 2122.

The rolling brush body 214 extends in the longitudinal direction, and is provided with bristles 2144 on the surface. The length direction is defined as the axial direction. Referring to fig. 4, fig. 4 shows the axial or length direction XL of the roller brush body 214. When the rolling brush body 214 rotates around the axial direction XL, the bristles 2144 thereof can alternately sweep across the ground for cleaning.

The roll brush frame 220, on the other hand, defines a roll brush chamber 222. The roll brush chamber 222 may be an arc-shaped chamber extending in a longitudinal direction. The brush body 214 of the brush roll 210 may be inserted into the brush roll chamber 222 so as to be received in the brush roll chamber 222 and rotate in the brush roll chamber 222. Fig. 2 and 3 show schematic views of the insertion of the brush body 214 into the brush chamber 222. As shown in fig. 2 and 3, the linkage assembly 212 may be rotated to assume different positions. Specifically, in fig. 2, the connecting assembly 212 is in a first position, in which the connecting assembly 212 is connected to the roll brush frame 220. In fig. 3, the connection assembly 212 is in the second position, and the connection assembly 212 may be disengaged from the roll brush frame 220.

With continued reference to fig. 1. As shown in fig. 1, the roll brush cavity 222 may have an arcuate cross-section. Preferably, the arcuate cross-section is larger than a semicircle to prevent the brush body 214 from falling from the brush chamber 222 in the radial direction thereof, so that the brush body 214 can be drawn out only from one end or both ends of the brush chamber 222.

As shown in fig. 1, the connecting assembly 212 includes a positioning slot 2124, and the roller brush frame 220 includes a head retractable positioning member 224 that mates with the positioning slot 2124. When the linkage assembly 212 is in the first position described above with reference to fig. 2, the head of the head retractable positioning member 224 of the roll brush frame 220 is seated in the positioning slot 2124 of the linkage assembly 212 to act as a stop for the linkage assembly 212 to rotate relative to the roll brush frame 220. When the connecting assembly 212 is in the second position as described above with reference to fig. 3, the head of the head retractable positioning member 224 of the roll brush frame 220 is disengaged from the positioning slot 2124 of the connecting assembly 212. Details will be described later.

Of course, in some embodiments, the connecting assembly 212 may include a head telescopic locator 224, and the roller brush frame 220 may include a locating slot 2124 that cooperates with the head telescopic locator 224, which is not limited in this application.

As shown in fig. 1, the connecting assembly 212 includes a guide slot 2126, and the brush roller frame 220 includes a protrusion 226 that mates with the guide slot 2126. The guide slot 2126 may cooperate with the tab 226 to guide relative movement between the tab 226 and the guide slot 2126. When the linkage assembly 212 is in the first position described above with reference to fig. 2, the guide slot 2126 and the tab 226 cooperate to limit relative movement of the two along the length direction XL of the roller brush cavity 222. When the coupling assembly 212 is in the second position described above with reference to fig. 3, the tab 226 may disengage from the guide slot 2126. Details will be described later.

Of course, in some embodiments, the connection assembly 212 may include the protrusion 226, and the brush frame 220 may include the guide slot 2126 engaged with the protrusion 226, which is not limited in this application.

As described above, the present application provides two sets of the protrusions 226 and the guide grooves 2126 and the head retractable positioning members 224 and the positioning grooves 2124 between the connecting member 212 and the roller brush frame 220, and the two sets of the protrusions 226 and the guide grooves 2126 can be switched between the connecting position and the detachable position only by rotating the connecting member 212 by a certain angle.

When the roller brush 210 needs to be disassembled, the user only needs to rotate the connecting assembly 212 to the second position, the head retractable positioning element 224 can be disengaged from the positioning slot 2124, and the protrusion 226 can also be disengaged from the guiding slot 2126. The user can finish detaching the roll brush 210 by only drawing out the roll brush body 214 from the roll brush cavity 222. When the rolling brush 210 needs to be installed, a user only needs to insert the rolling brush main body 214 into the rolling brush cavity 222, place the connecting assembly 212 at the first position, and rotate the connecting assembly 212 from the first position to the second position, so that the installation of the rolling brush 210 can be completed. Through the mode, the roller brush 210 is convenient and quick to detach and install.

Referring to fig. 4, fig. 4 shows an exploded perspective view of the roll brush 210. As shown in fig. 4, the rolling brush body 214 includes a rolling brush cylinder 2142 and bristles 2144 attached to the surface of the rolling brush cylinder 2142. The rolling brush cylinder 2142 is a hollow cylinder 2142 or has a hollow structure at least at both ends.

In some embodiments, the connection assembly 212 is rotatably coupled to the roller brush body 214 by a bearing 216. Specifically, connection assembly 212 includes positioning posts 2128 that project toward roller brush body 214. The bearing 216 is disposed on the positioning post 2128 and embedded in the roller brush cylinder 2142 of the roller brush main body 214. Optionally, bearing 216 is interference fit with locator post 2128 such that bearing 216 is tightly secured to locator post 2128.

Referring to fig. 5 and 6, fig. 5 and 6 show a perspective view and a side view, respectively, of the connection assembly 212.

As shown in fig. 5, the connection assembly 212 is in the form of a swivel cap 2120. The rotating cover 2120 includes a first side face 2120 facing the brush main body 214, a second side face 2120 opposite to the first side face 2120, and a peripheral side 21203 connecting the first side face 2120 and the second side face 2120.

The guide groove 2126 opens on the peripheral side 21203. Specifically, the guide slot 2126 includes a first slot segment 21261 and a second slot segment 21262 that communicate with each other. First slot segment 21261 opens to first side face 21201 and to peripheral side 21203. The second groove section 21262 opens only to the peripheral side 21203. In particular, the first groove section 21261 extends from the first side face 2120 in the axial direction of the rotary cover 2120 (or the axial direction XL of the roller brush body 214) towards the second side face 2120 without passing through the second side face 2120, while the second groove section 21262 extends from the first groove section 21261 in the circumferential direction of the rotary cover 2120.

Referring back to fig. 1, at least one protrusion 226 is provided on an inner wall of the roll brush chamber 222. When the connection assembly 212 is in the second position described above, the tab 226 is aligned with the first slot segment 21261 of the guide slot 2126 and can be disengaged from the first slot segment 21261. The user can detach the roller brush 210 by simply pulling the rotational cover 2120 outward to disengage the first slot section 21261 from the protrusion 226. In particular, the projection of the nub 226 on the first side 21201 has a profile that is smaller than the profile of the first slot segment 21261 to facilitate disengagement of the nub 226 from the first slot segment 21261.

On the other hand, when the projection 226 is aligned with the first groove section 21261 of the guide groove 2126, by rotating the rotary cover 2120, the projection 226 can enter the second groove section 21262 from the first groove section 21261 in the circumferential direction of the rotary cover 2120, thereby restricting the relative movement between the projection 226 and the guide groove 2126 in the axial direction of the rotary cover 2120. At this time, the user cannot pull the rotational cover 2120 outward due to the engagement of the projection 226 with the second groove section 21262 of the guide groove 2126.

As shown in fig. 6, the coupling assembly 212 may include two diametrically opposed guide slots 2126. It should be understood by those skilled in the art that the coupling assembly 212 may include a plurality of guide slots 2126. Also, a corresponding number of projections 226 are included on the inner wall of the rolling brush cavity 222. The plurality of protrusions 226 are respectively engaged with the plurality of guide grooves 2126.

Further reference is made to fig. 7, 8 and 9. Fig. 7 illustrates a top view of the cleaning robot 10 according to an embodiment of the present application. Fig. 8 shows a cross-sectional view of the cleaning robot 10 of fig. 7 along line E-E when the connection assembly 212 is in the second position. Fig. 9 shows a schematic cross-sectional view of the cleaning robot 10 of fig. 7 along line E-E when the connection assembly 212 is in the first position.

As shown in fig. 7, the roll brush 210 is inserted into the roll brush chamber 222 of the roll brush frame 220 from one side. When the roller brush 210 is inserted into the roller brush chamber 222, the rotational handle 2122 may be exposed outside the roller brush chamber 222 for easy manipulation by a user.

Fig. 8 and 9 show two lugs 226 and two guide slots 2126, respectively.

As shown in fig. 8, when the coupling assembly 212 is in the second position, each of the two tabs 226 is aligned with the second slot segment 21262 of one of the guide slots 2126.

As shown in fig. 9, when the coupling assembly 212 is in the first position, each of the two projections 226 is aligned with the first slot segment 21261 of one of the guide slots 2126.

The cooperation of the positioning slot 2124 and the head telescopic retainer 224 is described in detail below.

Refer back to fig. 1. As shown in FIG. 1, the roll brush frame 220 includes a head telescoping positioning member 224. Specifically, the roll brush frame 220 is provided with positioning holes 228 that open toward the inner wall of the roll brush chamber 222 in the radial direction of the roll brush chamber 222. The head telescopic retainer 224 is mounted in the retainer hole 228. In some embodiments, the alignment aperture 228 is at least partially a threaded aperture and the retractable-head positioning element 224 is a retractable-head set screw 224. Set screw 224 is threaded into alignment hole 228 with its retractable head extending into roller brush cavity 222.

Fig. 10 shows one embodiment of a retractable-head set screw 224. As shown, the set screw 224 is a ball screw 224 that includes a screw housing 2242, a resilient member 2244 disposed within the screw housing 2242, and a retractable head 2246 at least partially disposed within the screw housing 2242. Resilient members 2244, such as springs, eject the telescoping head 2246 at least partially from within the screw housing 2242.

In the embodiment of the ballscrew 224, the telescoping head 2246 is a bead 2248. The end of the screw housing 2242 forms an opening having a diameter smaller than the diameter of the ball 2248 to allow the ball 2248 to partially protrude. The telescoping head 2246 may have other shapes as well, and the present application is not limited in this regard.

As shown in fig. 1 or 4, the rotating cover 2120 of the connecting assembly 212 is provided with a positioning groove 2124 matched with the wave ball screw 224. Specifically, the positioning groove 2124 opens on the peripheral side 21203 of the rotary cover 2120.

The alignment slot 2124 on the rotating cover 2120 is aligned with the alignment hole 228 when the attachment assembly 212 is in the first position described above during attachment of the attachment assembly 212 to the brush frame 220. At this time, the ball 2248 of the ball screw 224 is fitted into the positioning groove 2124, and the rotary cover 2120 is prevented from further rotating. When the user wants to remove the brush body 214, a rotational force exceeding a certain threshold may be applied to the rotational cover 2120, forcing the ball 2248 of the ball screw 224 out of the positioning slot 2124.

In some embodiments, the brush frame 220, and in particular the rotating cover 2120, may include a first marking that marks the position of the wave ball screw 224, and the brush frame 220 may include a second marking that marks the position of the positioning hole 228. When the first and second indicia are aligned when the roll brush 210 is installed, the connection assembly 212 may be in the first position. In some embodiments, the first and second indicia may each be a pattern, such as an arrow or the like.

Referring to fig. 11 and 12, fig. 11 illustrates a schematic sectional view of the cleaning robot 10 illustrated in fig. 7 along the line F-F, and fig. 12 illustrates an enlarged schematic view at G in fig. 11.

As shown in fig. 12, the positioning slot 2124 is an arc-shaped slot having a spherical surface that mates with the surface of the ball 2248 of the ball screw 224. The positioning slot 2124 may also be a slot with other shapes, which is not limited in this application.

Referring again to fig. 4, as shown, the roller brush 210 further includes a transmission assembly 218 for drivingly engaging the drive device 30 (shown in fig. 1) of the cleaning robot 10 to provide rotational power to the roller brush 210. The transmission assembly 218 may be connected at the other end of the roller brush body 214 opposite the connection assembly 212. In some embodiments, the transmission assembly 218 is a gear sleeve female seat 2180 that is at least partially a hollow cylinder having an inner wall provided with annular teeth. In some embodiments, the sleeve gear master 2180 can be fixedly connected to the roller body 2142 of the roller body 214, for example, by a screw connection, so as to rotate the roller body 214. In some embodiments, tooth sleeve female seat 2180 may be integrally formed with roller brush cylinder 2142. For example, the tooth set female seat 2180 may be formed by forming annular teeth on the inner wall of the rolling brush cylinder 2142.

As shown in fig. 4, the roll brush 210 may further include at least one elastic body 219. One end of the at least one elastomer 219 may be secured within the gear sleeve female seat 2180 by a screw 217.

Referring to fig. 13, fig. 13 shows an enlarged schematic view at H in the cross-sectional schematic view of fig. 11. As shown in fig. 13, the sleeve gear mother 2180 is embedded in the rolling brush cylinder 2142 of the rolling brush body 214. The sleeve gear seat 2180 is embedded in the rolling brush cylinder 2142 of the rolling brush main body 214 in an interference fit manner.

As shown in fig. 13, the sleeve gear box 2180 is a cup having an opening 2183 at one end and defines a first housing chamber 2181 and a second housing chamber 2182 therein which communicate with each other. Specifically, the second accommodation chamber 2182 communicates with the opening 2183 through the first accommodation chamber 2181. The lateral dimension of the first housing cavity 2181 is greater than the lateral dimension of the second housing cavity 2182. For example, the first and second accommodation cavities 2181 and 2182 are cylindrical cavities, and the diameter of the first accommodation cavity 2181 is larger than that of the second accommodation cavity 2182.

As shown in fig. 13, the inner wall of the first accommodating cavity 2181 is formed with an annular tooth 2184. The brush drive gear 301 (or other gear transmission member) of the driving device 30 of the cleaning robot 10 extends into the first accommodation chamber 2181 through the opening 2183 and is engaged with the annular teeth 2184 of the tooth socket master 2180 to drive the tooth socket master 2180 and further drive the brush main body 214 to rotate.

As shown in fig. 13, the at least one elastic body 219 is disposed in the second accommodation chamber 2182. The at least one elastic body 219 is, for example, a spring. The at least one elastomer 219 abuts in axial direction between the sleeve gear socket 2180 and the drive device 30. Specifically, one end of the at least one elastic body 219 abuts against the bottom wall of the second accommodation chamber 2182, and the other end abuts against the brush drive gear 301. In some embodiments, one end of the at least one elastic body 219 may be further fixed to the bottom wall of the second receiving chamber 2182 by a screw 217.

The at least one elastic body 219 may provide an axial pushing force to the roll brush 210. This axial pushing force may assist in pushing the brush body 214 out of the brush cavity 222 when removing the brush 210, thereby facilitating removal of the brush 210 by a user.

In some embodiments, as shown in fig. 14, at least one resilient body 219 may also be provided between the brush body 214 and the drive device 30 at other locations to provide a force to move the brush body 214 and the drive device 30 away from each other. This force is optionally along the axial or lengthwise direction XL of the roller brush body 214. This axial pushing force may assist in pushing the brush body 214 out of the brush cavity 222 when removing the brush 210, thereby facilitating removal of the brush 210 by a user.

In fig. 14, one end of at least one elastic body 219 may be fixedly connected to one end of the roll brush body 214, and the other end of the at least one elastic body 219 may abut against the driving device 30. Alternatively, the at least one elastomer 219 may be compressed by both the roller brush body 214 and the drive means to provide the axial thrust described above. In some embodiments, one end of the roller brush body 214 may be uniformly provided with a plurality of elastic bodies 219, which is not limited in the present application.

As shown in fig. 1, the driving device 30 of the cleaning robot 10 may be disposed at one end of the drum brush frame 220 so as to provide a driving force to the drum brush 210 through the transmission assembly 218 of the drum brush 210.

The cleaning robot 10 may further include a counterweight 40. The balance weight 40 is provided at the other end of the roll brush frame 220 opposite to the driving device 30. The balance weight 40 may be fixedly mounted to the roll brush frame 220 by means of bolts or the like. The weight 40 is used to balance with the driving device 30 at the other side of the cleaning robot 10, increasing the stability of the cleaning robot 10 in operation.

As described above, with the cleaning robot 10 and the rolling brush assembly 20 thereof disclosed in the present application, the rolling brush 210 can be detached only by performing a rotating and pulling-out operation, thereby saving a lot of time for daily maintenance for a user.

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent transformations that can be implemented by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A round brush assembly, comprising:

a roller brush frame defining a roller brush chamber; and

a roll brush including a roll brush body and a coupling assembly rotatably coupled to one end of the roll brush body, the roll brush body being at least partially received in the roll brush chamber,

wherein the connecting assembly is moved by rotation between a first position in which the connecting assembly is connected with the roll brush frame and a second position in which the connecting assembly is detachable from the roll brush frame,

wherein the connecting component comprises one of a positioning groove and a head telescopic positioning piece which are matched with each other, the rolling brush frame comprises the other one of the positioning groove and the head telescopic positioning piece,

wherein, when the first position is reached, the head of the head telescopic positioning piece is arranged in the positioning groove, and when the second position is reached, the head of the head telescopic positioning piece is separated from the positioning groove,

wherein the connecting assembly comprises one of a projection and a guide groove which are matched with each other, the rolling brush frame comprises the other of the projection and the guide groove,

when the roller brush is in the first position, the guide sliding groove limits the lug to relatively move along the length direction of the roller brush cavity, and when the roller brush is in the second position, the lug can be separated from the guide sliding groove.

2. The round brush assembly according to claim 1,

the connection assembly includes a first marker configured to mark a position of a corresponding one of the positioning slot and the head telescopic locator,

the roller brush frame includes a second marker configured to mark a position of a corresponding other one of the positioning slot and the head retractable positioning member,

wherein the connection assembly is in the first position when the first and second indicia are aligned.

3. The round brush assembly according to claim 1,

the head telescopic positioning piece is a head telescopic fastening screw,

wherein the set screw comprises:

a screw housing;

the elastic piece is arranged in the screw shell; and (c) a second step of,

the telescopic head part is at least partially arranged in the screw shell, and the elastic piece is used for ejecting the telescopic head part out of the screw shell at least partially.

4. The round brush assembly according to claim 3,

the fastening screw is a wave bead screw, the telescopic head is a bead body,

the connecting assembly comprises a positioning groove, and a screw shell of the set screw is fixed in the rolling brush frame.

5. The round brush assembly according to any one of claims 1 to 4,

the side wall of the rolling brush cavity is provided with the convex block,

the connection assembly includes a rotary cap having a first end and a second end,

the rotary cap includes:

a first side surface facing the roller brush main body;

a second side opposite the first side; and

a peripheral side connecting the first side and the second side,

the guide chute is arranged on the peripheral side.

6. The round brush assembly according to claim 5,

the guide chute comprises a first chute section and a second chute section which are communicated with each other,

the first groove section has openings on the first side face and the peripheral side,

the second groove section has an opening on the peripheral side.

7. The round brush assembly according to claim 1,

the connecting assembly is rotatably connected to one end of the roll brush body through a bearing.

8. The round brush assembly according to claim 1,

the rolling brush also comprises a transmission assembly which is used for being connected with a driving device to obtain rotary power,

wherein the driving device is fixedly connected to the rolling brush frame.

9. The round brush assembly according to claim 8,

at least one elastic body is provided between the roll brush body and the driving device to provide a force to move the roll brush body and the driving device away from each other.

10. A cleaning robot comprising the brush roll assembly according to any one of claims 1-9.

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