CN214804439U

CN214804439U - Cleaning robot and cleaning assembly for cleaning robot

Info

Publication number: CN214804439U
Application number: CN202022511359.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Ankobot Shanghai Smart Technologies Co ltd; Shankou Shenzhen Intelligent Technology Co ltd
Current assignee: Ankobot Shanghai Smart Technologies Co ltd; Shankou Shenzhen Intelligent Technology Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-11-23
Anticipated expiration: 2030-11-03

Abstract

The application discloses cleaning machines people and be used for cleaning machines people's clean subassembly includes: the roller brush is arranged in a roller brush chamber at the bottom of the cleaning robot and comprises a shaft core and a brush body arranged on the shaft core; the first rotating shaft group is connected to the first end of the shaft core and clamped at the driving end of the roller brush chamber; the second rotating shaft group is connected to the second end of the shaft core and clamped at the driven end of the roller brush chamber; the second spindle group is spatially separated from the first spindle group in the spindle core. This application can effectually prevent and reduce cleaning machines people in cleaning on hair twines in the pivot of roller brush, not only avoids and the artifical clearance roller brush that has significantly reduced, and reinforcing user experience feels, has improved cleaning machines people's cleaning efficiency moreover.

Description

Cleaning robot and cleaning assembly for cleaning robot

Technical Field

The application relates to the technical field of cleaning robots, in particular to a cleaning robot and a cleaning assembly for the same.

Background

In recent years, with the development of social economy and the improvement of the household living standard, furniture cleaning gradually enters an intelligent and mechanized era, the cleaning robot which is produced by transportation is popular with more and more families due to the effects of automatic cleaning and the like, the cleaning robot can liberate people from household cleaning work, the work burden of people on the aspect of household cleaning is effectively relieved, and the fatigue degree of people in the household cleaning process is relieved.

The cleaning robot cleans the garbage on the ground into the dust collecting box through the technologies of roller brush (also called middle brush) rotating brush cleaning, vacuum dust collection and the like, so that a large amount of hair can be wound on a rotating shaft of the roller brush in the cleaning process of the cleaning robot, the roller brush needs to be manually disassembled for periodic treatment, if the roller brush is difficult to rotate due to winding of the hair when the cleaning is not in time, the cleaning effect of the cleaning robot is obviously poor.

Therefore, there is a need for a cleaning assembly for a cleaning robot, which can reduce the hair from being wound on the rotating shaft of the roller brush and conveniently remove the hair wound on the rotating shaft of the roller brush during the cleaning process.

Disclosure of Invention

In view of the above-mentioned disadvantages of the related art, an object of the present application is to provide a cleaning robot and a cleaning assembly for the cleaning robot, so as to solve the problem that the rotating shaft of the roller brush is prone to entangle the impurities such as hairs.

To achieve the above and other related objects, a first aspect of the present application discloses a cleaning assembly for a cleaning robot, comprising: the roller brush is arranged in a roller brush chamber at the bottom of the cleaning robot and comprises a shaft core and a brush body arranged on the shaft core; the first rotating shaft group is connected to the first end of the shaft core and clamped at the driving end of the roller brush chamber; the second rotating shaft group is connected to the second end of the shaft core and clamped at the driven end of the roller brush chamber; the second spindle group is spatially separated from the first spindle group in the spindle core.

In certain embodiments of the first aspect of the present application, the brush body comprises a brush body or/and a glue brush body.

In certain embodiments of the first aspect of the present application, the shaft core includes a first shaft coupling portion located at a first end of the shaft core for connecting the first shaft group, a second shaft coupling portion located at a second end of the shaft core for connecting the second shaft group, and an isolation portion for isolating the first shaft coupling portion from the second shaft coupling portion.

In certain embodiments of the first aspect of the present application, the isolation portion is a solid structure of the shaft core, a stop structure, or a through hole structure having a smaller hole diameter than the first or second shaft connecting portion.

In certain embodiments of the first aspect of the present application, the first or/and second shaft connection portion has a counterbore.

In certain embodiments of the first aspect of the present application, the first set of spindles comprises: a first rotating shaft, the first end of which is connected with the first shaft connecting part of the shaft core, and the second end of which is connected with a driving system positioned at the driving end; the first inner cover is fixed on the first rotating shaft and comprises an embedded structure which is correspondingly embedded in the counter bore; the first outer cover is rotatably connected on the first rotating shaft in a shaft coupling mode and is mutually covered with the first inner cover; and the shaft sleeve is fixed at the second end of the first rotating shaft and is used for connecting the driving system.

In certain embodiments of the first aspect of the present application, an inner cover for covering the first end of the shaft core is formed on the peripheral side of the fitting structure.

In certain embodiments of the first aspect of the present application, a receiving space is provided between the first outer cover and the first inner cover, and a bearing coupled to the first rotating shaft is disposed in the receiving space.

In certain embodiments of the first aspect of the present application, the first outer cover has a shock absorbing layer.

In certain embodiments of the first aspect of the present application, a side of the first inner cap corresponding to the first outer cap is formed with an annular isolation groove, and the cap rim of the first outer cap is located in the annular isolation groove.

In certain embodiments of the first aspect of the present application, the annular isolation groove is provided with a bonding member therein.

In certain embodiments of the first aspect of the present application, the second spindle set comprises: the first end of the second rotating shaft is connected to the second shaft connecting part of the shaft core, and the second end of the second rotating shaft is clamped at the driven end clamped in the roller brush chamber; the second inner cover is fixed on the second rotating shaft and comprises an embedded structure which is correspondingly embedded in the counter bore; and the second outer cover is rotatably coupled on the second rotating shaft in a shaft connection mode and is mutually covered with the second inner cover.

In certain embodiments of the first aspect of the present application, the second end of the second shaft has a neck, and the inner wall of the second cover aperture has a protrusion for slidably engaging the neck of the second shaft to limit the axial movement of the second cover.

In certain embodiments of the first aspect of the present application, an inner cover for covering the second end of the shaft core is formed on the peripheral side of the fitting structure.

In certain embodiments of the first aspect of the present application, a receiving space is provided between the second outer cover and the second inner cover, and a bearing coupled to the second rotating shaft is disposed in the receiving space.

In certain embodiments of the first aspect of the present application, the second cover has a shock absorbing layer.

In certain embodiments of the first aspect of the present application, a side of the second inner cap corresponding to the second outer cap is formed with an annular isolation groove, and the cap rim of the second outer cap is located in the annular isolation groove.

A second aspect of the present application discloses a cleaning robot, including: a robot body including a housing; the power system comprises driving wheels which are arranged on two opposite sides of the robot body and used for driving the robot body to move; a control system disposed within the housing for controlling the drive wheel; the cleaning system is arranged on the robot body and used for executing cleaning operation according to a control instruction of the control system; a dust collection system disposed within the housing for collecting dust collected by the cleaning system during a cleaning operation; the cleaning assembly is arranged in a roller brush chamber at the bottom of the robot body and used for performing cleaning operation in a rotating state.

In conclusion, the cleaning robot and the cleaning assembly for the cleaning robot disclosed by the application can effectively reduce the situation that hairs of the cleaning robot are wound on the rotating shaft of the roller brush during cleaning and conveniently clear the hairs wound on the rotating shaft of the roller brush, so that the manual cleaning of the roller brush is avoided or greatly reduced, the user experience is enhanced, and the cleaning efficiency of the cleaning robot is improved.

Drawings

Fig. 1 is a schematic structural diagram of a cleaning assembly for a cleaning robot according to an embodiment of the present invention, separated from the cleaning robot.

Fig. 2 is a schematic structural diagram of a cleaning assembly for a cleaning robot according to an embodiment of the present invention.

Fig. 3 is a schematic view of another embodiment of a cleaning assembly for a cleaning robot according to the present invention.

Fig. 4 is a schematic cross-sectional view of a cleaning assembly for a cleaning robot according to an embodiment of the present disclosure.

Fig. 5 is a schematic diagram showing a separated structure of a cleaning assembly for a cleaning robot according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a cleaning assembly for a cleaning robot according to an embodiment of the present invention, which is combined with the cleaning robot.

Fig. 7 is a schematic disassembled structure view of the first rotating shaft group of the cleaning assembly for the cleaning robot according to the embodiment of the invention.

Fig. 8 is a partially enlarged view of a portion a in fig. 4.

Fig. 9 is a schematic diagram illustrating a disassembled structure of the second rotating shaft set of the cleaning assembly for the cleaning robot according to an embodiment of the present invention.

Fig. 10 is a partially enlarged view of a portion B in fig. 4.

Fig. 11 is a schematic structural diagram of a cleaning robot according to an embodiment of the present invention.

Fig. 12 is a schematic bottom view of a cleaning robot according to an embodiment of the present disclosure.

Detailed Description

The following description of the embodiments of the present application is provided for illustrative purposes, and other advantages and capabilities of the present application will become apparent to those skilled in the art from the present disclosure.

In the following description, reference is made to the accompanying drawings that describe several embodiments of the application. It is to be understood that other embodiments may be utilized and that mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is not to be taken in a limiting sense, and the scope of embodiments of the present application is defined only by the claims of the issued patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Spatially relative terms, such as "upper," "lower," "left," "right," "lower," "below," "lower," "above," "upper," and the like, may be used herein to facilitate describing one element or feature's relationship to another element or feature as illustrated in the figures.

Although the terms first, second, etc. may be used herein to describe various elements or parameters in some instances, these elements or parameters should not be limited by these terms. These terms are only used to distinguish one element or parameter from another element or parameter. For example, the first end may be referred to as the second end, and similarly, the second end may be referred to as the first end, without departing from the scope of the various described embodiments. The first end and the second end are both at the end of the description, but they are not the same end unless the context clearly dictates otherwise. The similar situation also comprises a first rotating shaft group and a second rotating shaft group, or a first shaft connecting part and a second shaft connecting part.

Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

A large amount of hairs can be wound on a rotating shaft of a roller brush of the existing cleaning robot in the cleaning process, the roller brush needs to be manually detached for periodic treatment, if the hairs are not cleaned in time, the roller brush is difficult to rotate due to winding, and the cleaning effect of the cleaning robot is obviously poor.

In view of this, the present application discloses a cleaning assembly for a cleaning robot, including a roller brush, a first rotation shaft group, and a second rotation shaft group.

The roller brush is used for being arranged in a roller brush chamber at the bottom of the cleaning robot and comprises an axle core and a brush body, and the brush body is arranged on the axle core.

The first rotating shaft group is connected to the first end of the shaft core and clamped at the driving end of the roller brush chamber.

The second rotating shaft group is connected to the second end of the shaft core and clamped at the driven end of the roller brush chamber, and the second rotating shaft group and the first rotating shaft group are isolated by space in the shaft core.

In this application, the clamping means a tool-free dismounting or mounting arrangement, that is, an operator can dismount the first rotating shaft group from the first end of the shaft core only by hand without using an additional tool, and of course, the first rotating shaft group can also be mounted at the first end of the shaft core only by hand; in the same way, the operator can detach the second rotating shaft group from the second end of the shaft core only by hand, and of course, the operator can attach the second rotating shaft group to the second end of the shaft core only by hand.

The cleaning assembly for a cleaning robot disclosed by the present application can effectively prevent or reduce the hair from being wound on the rotating shaft of the roller brush during cleaning of the cleaning robot, and the cleaning assembly for a cleaning robot described in the embodiments is described in detail below with reference to fig. 1 to 10.

Referring to fig. 1 to 4, fig. 1 is a schematic structural view illustrating a cleaning assembly for a cleaning robot according to an embodiment of the present invention separated from the cleaning robot; FIG. 2 is a schematic diagram of a cleaning assembly for a cleaning robot according to an embodiment of the present disclosure; FIG. 3 is a schematic view of another embodiment of a cleaning assembly for a cleaning robot according to the present application; fig. 4 is a schematic cross-sectional view illustrating a cleaning assembly for a cleaning robot according to an embodiment of the present invention, and as shown in the drawings, the roller brush 20 is disposed in a roller brush chamber 23 at the bottom of the cleaning robot, and the roller brush 20 includes a shaft core 200 and a brush body 201 mounted on the shaft core 200.

In practical application, the cleaning robot is also called as a sweeping robot, an intelligent robot, a mobile robot, an automatic sweeping machine, an intelligent dust collector and the like, is one of intelligent household appliances, and can complete cleaning work of sweeping, dust collection, mopping or both dust collection and mopping. Specifically, the cleaning robot can be controlled by a person (an operator holds a remote controller) or automatically complete floor cleaning work in a room according to a certain set rule.

In one embodiment, the cleaning robot includes a robot body including a housing 10, the housing 10 including a chassis 100 and an outer shell 101, the chassis 100 may be integrally molded from a material such as plastic, including a plurality of preformed grooves, recesses, detents, or the like for mounting or integrating associated devices or components on the chassis. In some embodiments, the housing 101 may also be integrally molded from a material such as plastic and configured to complement the chassis 100 to provide protection for the associated devices or components mounted to the chassis 100. The chassis 100 and the housing 101 may be detachably combined by various suitable means (e.g., screws, snaps, etc.), and after being combined, the chassis 100 and the housing 101 may form a package structure having a certain receiving space.

In an embodiment, the bottom central region of the chassis 100 has a containing groove 11 and a housing 12, a cavity formed by the containing groove 11 and the housing 12 is the roller brush chamber 23, and the roller brush 20 is disposed in the roller brush chamber 23.

Referring to fig. 2 and 3, as shown, the brush body 201 includes a brush body 2010 or/and a rubber brush body 2011. In one embodiment, the brush body 201 comprises a brush body 2010, the growth direction of the brush body 2010 is substantially consistent with the radial direction of the shaft core 200, and the brush body 2010 is used for sweeping garbage in the sweeping process of the cleaning robot; in another embodiment, as shown in fig. 3, the brush 201 includes a rubber brush 2011, a growth direction of the rubber brush 2011 substantially coincides with a radial direction of the shaft core 200, and the cleaning robot cleans the garbage with the rubber brush 2011 in the cleaning process; in another embodiment, as shown in fig. 2, in order to achieve various cleaning environments such as blankets and floors and dust collection efficiency, the brush body 201 includes a brush body 2010 and a rubber brush body 2011, the brush body 2010 and the rubber brush body 2011 are alternately arranged at intervals, and the growth direction of the brush body 2010 and the radial direction of the shaft core 200 are substantially consistent, so that wind is easily lost from gaps due to the large gaps between the brush tufts on the brush body 2010, and the formation of a vacuum environment is less facilitated. Therefore, by setting the rubber brush 2011, a wind inlet effect can be formed, and when the wind inlet strength reaches the preset strength, the sweeping of the cleaning object can be assisted, so that garbage can be cleaned more conveniently under the sweeping of the roller brush 20 and the blowing of wind.

In an embodiment, the rubber brush 2011 is configured as a V-shaped or U-shaped spiral structure, and the tip of the "V" shape is located in the middle of the roller brush 20 and faces the walking direction of the cleaning robot, so that in the rolling and sweeping process of the roller brush 20, the garbage is gathered from the two sides to the middle by the two opposite sides of the V-shaped or U-shaped spiral structure, so that part of dust, especially large-particle garbage, is easier to be cleaned, and the cleaning efficiency is greatly improved due to the simple structure. Further, in order to alleviate the impact of the garbage on the roller brush 20, referring to fig. 2 and fig. 3, as shown in the figure, a plurality of notches are formed on the rubber brush body 2011, and the notches are arranged at both sides with gradually increasing intervals, beginning at the center of the rubber brush body. Of course, the glue bodies 2011 of the roller brush 20 may be arranged in other spiral arrangements, such as "\"/", staggered toward the middle of the roller brush 20, which may also have the effect of collecting the garbage toward the middle of the roller brush 20

In an embodiment, the brush body 2010 is configured as a V-shaped or U-shaped spiral structure, and the tip of the "V" shape is located at the middle position of the roller brush 20 and faces the walking direction of the cleaning robot, and during the rolling and sweeping process of the roller brush 20, the brushes on the two opposite sides of the V-shaped or U-shaped spiral structure gather the garbage from the middle positions of the two sides, so that the garbage is easier to be cleaned. Of course, the brush bodies 2010 of the roll brush 20 may be arranged in other spiral arrangements, such as "\\"/"staggered toward the middle of the roll brush, which also has the effect of collecting the garbage toward the middle of the roll brush 20.

Referring to fig. 4 and 5, fig. 5 is a schematic diagram showing a separation structure of a cleaning assembly for a cleaning robot according to an embodiment of the present invention, and as shown in the drawing, the shaft core 200 includes a first coupling portion 202 located at a first end of the shaft core 200 for connecting the first rotating shaft group 21, a second coupling portion 203 located at a second end of the shaft core 200 for connecting the second rotating shaft group 22, and an isolation portion 204 for isolating the first coupling portion 202 from the second coupling portion 203.

In one embodiment, the first and/or second

shaft connecting portions

202 and 203 have a counterbore 205. In one embodiment, the first shaft coupling portion 202 has a counter bore 205, and the counter bore 205 is used for connecting the first shaft group 21 to the first end of the shaft core 200, so as to facilitate assembling or disassembling the first shaft group 21 to the roller brush 20; in another embodiment, the second shaft connecting portion 203 has a counter bore 205, and the counter bore 205 is used for connecting the second rotating shaft group 22 to the second end of the shaft core 200, so as to facilitate assembling or disassembling the second rotating shaft group 22 to the roller brush 20; in other embodiments, the first and second

shaft connecting portions

202 and 202 each have a counterbore 205 for connecting the first shaft set 21 to the first end of the roller brush 20, and the second shaft set 22 is connected to the second end of the shaft core 200, so as to facilitate assembling or disassembling the first and second shaft sets 21 and 22 to or from the roller brush 20.

In an embodiment, the counterbore 205 includes an upper hole position and a lower hole position, the lower hole position is used for providing a receiving space for the extension of the connected first rotating shaft group 21 (or the connected second rotating shaft group 22), and the upper hole position is used for providing a fitting space for the tight fitting of the connected first rotating shaft group 21 (or the connected second rotating shaft group 22) on the shaft core 200.

In order to avoid the relative movement between the first and second rotation shaft sets 21 and 22 and the shaft core 200 in the radial direction, in an embodiment, a single or a plurality of grooves 2050 are formed on the inner wall of the upper hole of the counter bore 205. However, the present invention is not limited to this, in other embodiments, for example, the upper hole position of the counterbore 205 may be set to a non-circular structure such as a triangle, a square, an irregular polygon, etc. to avoid the relative movement between the first rotating shaft group 21 and the second rotating shaft group 22 and the radial direction of the shaft core 200.

In one embodiment, as shown in fig. 4, the isolation portion 204 is a solid structure of the shaft core 200, i.e., the inside of the shaft core 200 is a solid structure from the first shaft connecting portion 202 to the second shaft connecting portion 203. However, the isolation portion 204 may be, for example, a stopper structure, specifically, a stopper disposed at the end of the first coupling portion 202 and the second coupling portion 203. Alternatively, the isolation portion 204 may also be a through hole structure with a smaller hole diameter than the first or second shaft coupling portion.

Referring to fig. 1 and 6, fig. 6 is a schematic structural view illustrating a cleaning assembly for a cleaning robot according to an embodiment of the present invention is combined with the cleaning robot, and as shown in the drawing, the first rotating shaft group 21 is connected to a first end of the shaft core 200 and is clamped at a driving end of the roller brush chamber 23. In an embodiment, the first rotating shaft group 21 is connected to a first shaft connecting portion 202 at a first end of the shaft core 200, one end of the roller brush chamber 23 having a driving system (not shown) for driving the roller brush 20 to rotate is a driving end of the roller brush chamber 23, and an opposite end of the roller brush chamber 23 located at the driving end is a driven end of the roller brush chamber 23. It should be noted that the driving system includes a driving motor for driving the roller brush 20 to rotate to clean the ground.

Referring to fig. 4, 7 and 8, fig. 7 is a schematic diagram illustrating a disassembled structure of a first rotating shaft group of a cleaning assembly for a cleaning robot according to an embodiment of the present invention; fig. 8 is a partial enlarged view of a portion a in fig. 4, and as shown in the drawing, in an embodiment, the first rotating shaft assembly 21 includes a first rotating shaft 210, a first inner cover 211, a first outer cover 212, and a shaft sleeve 213.

A first end of the first rotating shaft 210 is connected to the first shaft connecting portion of the shaft core 200, and a second end thereof is connected to a driving system at the driving end. In an embodiment, a shaft sleeve 213 is fixed to a second end of the first rotating shaft 210, the shaft sleeve is used for connecting the driving system, the second end of the first rotating shaft 210 is connected to the driving system at the driving end through the shaft sleeve 213, and the driving system drives the shaft sleeve 213 to drive the first rotating shaft 210 to rotate.

In an embodiment, a first end of the first rotating shaft 210 extends into a lower hole position of the counterbore 205 of the first coupling portion 202, two opposite sides of a second end of the first rotating shaft 210 are recessed downward to form a boss 2100 with a non-circular cross section, the shaft sleeve 213 has a sleeve hole conforming to the boss 2100, the shaft sleeve 213 is tightly sleeved on the boss 2100 through the sleeve hole, and meanwhile, the shaft sleeve 213 is connected to an output shaft of a driving motor of the driving system and can be driven to drive the first rotating shaft 210 to rotate. In this way, the shaft sleeve 213 is fixed to the second end of the first rotating shaft 210, so that the shaft sleeve 213 and the first rotating shaft 210 are prevented from moving radially relative to each other during rotation. However, the second end of the first rotating shaft 210 may also be configured as a non-circular structure with a triangular, square, irregular polygon, etc. cross section, and only a sleeve hole conforming to the second end structure needs to be adaptively formed on the shaft sleeve 213, so that the relative movement between the shaft sleeve 213 and the first rotating shaft 210 in the radial direction can be avoided.

In an embodiment, a recessed portion 2101 is disposed on a sidewall of a boss 2100 formed at the second end of the first rotating shaft 210, and a protruding portion 2130 fitted into the recessed portion 2101 is disposed on an inner wall of the sleeve hole of the shaft sleeve 213 to limit the axial movement of the shaft sleeve 213 relative to the first rotating shaft 210, so as to ensure that the shaft sleeve 213 is connected to the first rotating shaft 210 in a non-loose manner.

The first inner cover 211 is fixed on the first rotating shaft 210 and includes a fitting structure 2110 correspondingly embedded in the counterbore 205, and the fitting structure 2110 of the first inner cover 211 is used for fixing the first inner cover 211 and the first rotating shaft 210 on the first shaft coupling portion 202 at the first end of the shaft core 200.

In an embodiment, the engaging structure 2110 of the first inner cover 211 is disposed on a side of the first inner cover 211 facing the first end of the first rotating shaft 210, and when the first end of the first rotating shaft 210 extends into the lower hole of the counterbore 205 of the first coupling portion 202, the engaging structure 2110 is engaged in the upper hole of the counterbore 205 of the first coupling portion 202 so that the first inner cover 211 and the first rotating shaft 210 are tightly coupled to the first coupling portion 202 of the shaft core 200, so that when the driving system drives the first rotating shaft 210 to rotate, the shaft core 200 rotates along with the first rotating shaft. Specifically, in order to avoid the radial relative movement between the first inner cover 211 and the first shaft connecting portion 202, i.e. the radial relative movement between the first shaft group 21 and the shaft core 200, the upper hole position of the counterbore 205 is configured as described above, and the fitting structure 2110 of the first inner cover 211 is a boss which is adapted to the upper hole position of the counterbore 205 and is tightly fitted into the upper hole position of the counterbore 205 of the first shaft connecting portion 202.

In order to avoid or reduce the hair from being wound around the joint of the first inner cover 211 and the first end of the shaft core 200, in an embodiment, an inner cover 2111 for covering the first end of the shaft core 200 is formed on the peripheral side of the engaging structure 2110. Preferably, the inner edge of the inner cover 2111 is attached to the outer edge of the first end of the shaft core 200.

The first outer cover 212 is rotatably coupled to the first shaft 210, and covers the first inner cover 211.

In one embodiment, the first outer cover 212 includes a cover body, a cover rim 2120, and a through hole 2121 located in a central region of the cover body, the cover rim 2120 is formed by the outer rim of the cover body extending toward the first inner cover 211, the through hole 2121 is configured as a through hole structure extending away from the first inner cover 211, and the through hole structure has a smaller hole diameter away from the first inner cover 211 than the through hole diameter toward the first inner cover 211, such that the first rotating shaft 210 can pass through the through hole and the gap between the through hole is minimized to prevent or reduce the entry of hair, the first rotating shaft 210 penetrates through the through hole 2121 of the first outer cover 212, such that the first outer cover 212 is rotatably journaled on the first rotating shaft 210, and is mutually covered on the first inner cover 211.

In practical applications, the first outer cover 212 is rotatably coupled to the first rotating shaft 210, and the first outer cover 212 moves axially relative to the first rotating shaft 210, so that the first outer cover 212 covers the first inner cover 211 and is away from the first inner cover 211, and hairs in cleaning by the cleaning robot can easily enter between the first outer cover 212 and the first inner cover 211 and can be wound on the first rotating shaft 210. In view of this, the second end of the first rotating shaft 210 has a neck 2102, the inner wall of the through hole 2121 of the first outer cover 212 has a protruding point 2122 for being slidably disposed on the first rotating shaft neck 2102, when the first rotating shaft 210 is driven to rotate, the protruding point 2122 on the inner wall of the through hole 2121 of the first outer cover 212 slides on the first rotating shaft neck 2102, on one hand, the axial movement of the first outer shell 212 is limited, so that the first outer shell 212 maintains a mutually covered state with the first inner cover 211, and on the other hand, the first outer cover 212 is prevented from being rotated. In an embodiment, the convex points 2122 are hemispherical protrusions, but this is not limited thereto, and in other embodiments, the convex points 2122 may also be other arc-shaped protrusions, for example.

In one embodiment, a receiving space is formed between the first outer cover 212 and the first inner cover 211, and a bearing 24 coupled to the first rotating shaft 210 is disposed in the receiving space. In an embodiment, a circular protrusion is formed on the circumferential side of the through hole 2121 of the first outer cover 212 in a direction toward the first inner cover 211, the first outer cover 212 and the first inner cover 211 are covered with each other so that the circular protrusion and the first inner cover 211 are matched to form the accommodating space, the bearing 24 is disposed in the accommodating space and is coupled to the first rotating shaft 210 so that the first outer cover 212 does not rotate along with the first rotating shaft 210 when the first rotating shaft 210 is driven to rotate, and therefore, during cleaning, entanglement such as hair is not easily wound on the first outer cover 212.

In order to prevent or reduce the entry of hair into the gap between the inner and outer covers, in an embodiment, an annular isolation groove 2112 is formed at a side of the first inner cover 211 corresponding to the first outer cover 212, and the cover rim 2120 of the first outer cover 212 is located in the annular isolation groove 2112. Thus, when the first rotating shaft 210 is driven to rotate, the annular isolation groove shields the gap between the inner cover and the outer cover of the 2112, and the entering of hair is reduced.

In order to prevent hairs from entering the annular isolation groove 2112 during cleaning by the cleaning robot, in practical applications, an adhesive member 25 is disposed in the annular isolation groove 2112 for adhering hairs that may enter the annular isolation groove 2112. In one embodiment, the adhesive 25 is configured to match the annular felt at the bottom of the annular isolation groove 2112. But not limited to this, in other embodiments, the adhesive member 25 may also be a plurality of felt strips scattered and adhered to the bottom of the annular isolation groove 2112, and the adhesive member 25 may also be a loop magic tape matched to the bottom of the annular isolation groove 2112.

In view of the fact that the cleaning robot travels anywhere in a room and inevitably collides with obstacles such as walls, tables and chairs in the room, so that the body of the cleaning robot jolts, and the roller brush 20 inevitably shakes up and down when being close to the ground for cleaning, the first outer cover 212 has a damping layer (not shown) for damping vibration of the roller brush 20 during cleaning of the cleaning robot, and provides a protective layer for the first outer cover 212 to prevent the first outer cover 212 from being worn due to long-term use. In an embodiment, the shock absorbing layer is made of a material having elastic properties, such as rubber, wrapped outside the first outer shell 212 (i.e., on a side away from the first inner cover) by an encapsulation process, but not limited thereto.

Referring to fig. 9 and 10, fig. 9 is a schematic view showing a disassembled structure of a second rotating shaft set of the cleaning assembly for the cleaning robot according to the present invention in an embodiment; fig. 10 is a partial enlarged view of a portion B in fig. 4, and as shown, in an embodiment, the second rotary shaft assembly 22 includes a second rotary shaft 220, a second inner cover 221, and a second outer cover 222.

A first end of the second rotating shaft 220 is connected to the second connecting portion 203 of the shaft core 200, and a second end thereof is engaged with the driven end clamped in the roller brush chamber 23. In an embodiment, a first end of the second shaft 220 extends into a lower hole of the counterbore 205 of the second shaft connecting portion 203.

The second inner cover 221 is fixed on the second rotating shaft 220, and includes a fitting structure 2210 correspondingly embedded in the counterbore 205 of the second connecting portion 203, and the fitting structure 2210 of the second inner cover 221 is used for fixing the second inner cover 221 and the second rotating shaft 220 on the second connecting portion 203 of the second end of the shaft core 200.

In an embodiment, the fitting structure 2210 of the second inner cover 221 is disposed on a side of the second inner cover 221 facing the first end of the second rotating shaft 220, and when the first end of the second rotating shaft 220 extends into the lower hole of the counterbore of the second shaft connecting portion 203, the fitting structure 2210 is fitted into the upper hole of the counterbore 205 of the second shaft connecting portion 203 so that the second inner cover 221 drives the second rotating shaft 220 to be closely connected to the second shaft connecting portion 203 of the shaft core 200, so that when the roller brush is driven to rotate, the second rotating shaft 220 can also rotate in compliance with the roller brush. Specifically, in order to avoid the radial relative movement between the second inner cap 221 and the second shaft connecting portion 220, i.e. the radial relative movement between the second rotating shaft assembly 22 and the shaft core 200, the upper hole position structure of the counterbore 205 is as described above, and the fitting structure 2210 of the second inner cap 221 is a boss which is adapted to the upper hole position of the counterbore 205 of the second shaft connecting portion 203 and is tightly fitted into the upper hole position of the counterbore 205 of the second shaft connecting portion 203.

In order to prevent or reduce the hair from being entangled at the joint of the second inner cap 221 and the second end of the shaft core 200, in an embodiment, an inner cap 2211 for covering the second end of the shaft core 200 is formed on the peripheral side of the fitting structure 2210 of the second inner cap 221. Preferably, the inner edge of the inner cover 2211 is just attached to the outer edge of the second end of the shaft core 200.

The second outer cover 222 is rotatably coupled to the second shaft 220 and covers the second inner cover 221.

In one embodiment, the second outer cover 222 includes a cover body, a cover rim 2220, and a through hole 2221 located in a central region of the cover body, the cover rim 2220 is formed by extending the outer rim of the cover body toward the second inner cover 221, the through hole 2221 is configured as a through hole structure extending in a direction away from the second inner cover 221, and the through hole structure has a smaller hole diameter in a direction away from the second inner cover 221 than in a direction close to the second inner cover 221 so that the second rotating shaft 220 can pass through the through hole and the gap between the through hole is minimized to prevent or reduce the entry of hair, and the second rotating shaft 220 penetrates through the through hole 2221 of the second outer cover 222 so that the second outer cover 222 can be rotatably journaled on the second rotating shaft 220 and mutually cover the second inner cover 221.

In practical applications, the second outer cover 222 is rotatably coupled to the second rotating shaft 220, and the second outer cover 222 moves axially relative to the second rotating shaft 220, so that the second outer cover 222 covers the second inner cover 221 at any time and is away from the second inner cover 221 at any time, and hairs in the cleaning robot can easily enter between the second outer cover 222 and the second inner cover 221 and can be wound on the second rotating shaft 220. In view of this, the second end of the second rotating shaft 220 has a neck portion 2200, the inner wall of the through hole 2221 of the second outer cover 222 has a protruding point 2222 slidably disposed on the second rotating neck portion 2200, when the roller brush 20 is driven to rotate, the protruding point 2222 on the inner wall of the through hole 2221 of the second outer cover 222 slides on the second rotating neck portion 2200, on one hand, the axial movement of the second outer shell 222 is limited, so that the second outer shell 222 keeps the mutually covered state with the second inner cover 221, and on the other hand, the second outer cover 222 is prevented from being rotated. In an embodiment, the protruding points 2222 are hemispherical protrusions, but not limited to this, in other embodiments, the protruding points 2222 may also be other arc-shaped protrusions, for example.

Referring to fig. 10, as shown in the figure, an accommodating space is formed between the second outer cover 222 and the second inner cover 221, and a bearing 24 coupled to the second rotating shaft 220 is disposed in the accommodating space. In an embodiment, a circular protrusion is formed on the circumferential side of the through hole 2221 of the second outer cover 222 in a direction toward the second inner cover 221, the second outer cover 222 and the second inner cover 221 are mutually covered so that the circular protrusion and the second inner cover 221 are matched to form the accommodating space, the bearing 24 is disposed in the accommodating space and is coupled to the second rotating shaft 220 so that the second outer cover 222 does not rotate along with the second rotating shaft 220 when the second rotating shaft 220 is driven to rotate, and therefore, during cleaning, entanglement such as hair is not easily wound on the second outer cover 222.

In order to prevent or reduce the entry of hair into the gap between the inner and outer covers, in an embodiment, the second inner cover 221 is formed with an annular separation groove 2212 at a side corresponding to the second outer cover 222, and the cover rim 2220 of the second outer cover 222 is located in the annular separation groove 2212. Therefore, when the second rotating shaft 220 is driven to rotate, the annular separating groove 2212 shields the gap between the inner cover and the outer cover, and the entering of hairs is reduced.

In order to prevent hairs from entering the annular separation groove 2212 of the second inner cover 221 during cleaning by the cleaning robot, in practical applications, an adhesive member 25 is disposed in the annular separation groove 2212 for adhering hairs that may enter the annular separation groove 2212. In one embodiment, the adhesive 25 is configured to match the annular felt at the bottom of the annular isolation groove 2212. But not limited thereto, in other embodiments, the adhesive 25 may also be, for example, a plurality of felt strips scattered and adhered on the bottom of the annular separation groove 2212, and the adhesive 25 may also be, for example, an annular magic tape matched with the bottom of the annular separation groove 2212, etc.

In view of the fact that the cleaning robot travels anywhere in a room and inevitably collides with obstacles such as walls, tables and chairs in the room, so that the body bumps, and the roller brush 20 inevitably shakes up and down while being close to the ground for cleaning, the second housing 222 has a shock absorbing layer (not shown) for buffering the shock of the roller brush 20 generated during the cleaning of the cleaning robot, and at the same time, provides a protective layer for the second housing 222, so as to prevent the second housing 222 from being worn due to long-term use. In an embodiment, the shock absorbing layer is formed by wrapping a material having elastic properties, such as rubber, on the outer side of the second casing 222 (i.e., the side away from the second inner cover 221) by using an encapsulation process, but not limited thereto.

It should be noted that, after the first rotating shaft group and the second rotating shaft group are detached from the roller brush, in order to prevent the situation of reverse assembly during reassembly, the first rotating shaft group, the second rotating shaft group, the first coupling portion and the second coupling portion adopt a fool-proof design. Specifically, under the condition that first hub connection portion and second hub connection portion all have the counter bore, the degree of depth of the counter bore of first hub connection portion is greater than the degree of depth of the counter bore of second hub connection portion, the length of the first pivot of first pivot group is greater than the length of the second pivot of second pivot group and suits with the degree of depth of the counter bore of first hub connection portion, the length of the second pivot of second pivot group suits with the degree of depth of the counter bore of second hub connection portion, so, the length of the first pivot of first pivot group will be greater than the degree of depth of the counter bore of second hub connection portion, and the counter bore of second hub connection portion is not enough to hold the first pivot of first pivot group, and first pivot group can't install in second hub connection portion.

Through the cleaning assembly for the cleaning robot disclosed by the application, the cleaning robot can be effectively prevented from being wound on the rotating shaft of the roller brush by hair in cleaning, the roller brush is not only prevented from being cleaned manually, the user experience is enhanced, the cleaning efficiency of the cleaning robot is improved, and in addition, the cleaning assembly in the application is simple in structure and convenient to detach and clean conveniently.

The application still discloses a cleaning machines people, including robot body, driving system, control system, clean system, dust collecting system and above-mentioned clean subassembly, clean subassembly sets up the roller brush of robot body bottom is indoor for carry out clean operation under the rotation state.

A cleaning robot described in the embodiment will be described in detail below with reference to fig. 1 to 12.

For convenience of understanding and clear description, in the embodiment of the present application, the direction in which the power system drives the robot body to advance is defined as a forward direction (i.e., a direction indicated by a dotted arrow in fig. 11); correspondingly, the opposite direction of the advancing direction of the robot body is defined as the backward direction. It should be understood that one side of the robot body in the direction of advance of the robot body is defined as a front side or front end; the side of the robot body facing away from the front side or end in the opposite direction is defined as the rear side or end.

Referring to fig. 11 and 12, fig. 11 is a schematic structural diagram of a cleaning robot according to an embodiment of the present disclosure; fig. 12 shows a schematic bottom view of the cleaning robot of the present application in one embodiment, and as shown, the cleaning robot body includes a housing 10, the housing 10 includes a chassis 100 and a shell 101, the chassis 100 may be integrally formed from a material such as plastic, and includes a plurality of preformed slots, recesses, detents, or the like for mounting or integrating the power system, the control system, the cleaning system, the dust collection system, and the cleaning assembly on the chassis 100. In some embodiments, the housing 101 may also be integrally molded from a material such as plastic and configured to complement the chassis 100 to provide protection for various systems mounted to the chassis 100. The chassis 100 and the housing 101 may be detachably combined by various suitable means (e.g., screws, snaps, etc.), and after being combined, the chassis 100 and the housing 101 may form an enclosing structure having a certain accommodating space.

The robot body in the cleaning robot of the embodiment is integrally in an oblate cylindrical structure: the chassis 100 is circular, the top panel of the casing 101 is circular, the side panel of the casing 101 extends downwards from the periphery of the circular top panel to form an outer circumferential side wall, and the side panel can also be provided with a plurality of grooves, openings and the like. When the cleaning robot moves (the movement includes at least one combination of forward movement, backward movement, steering and rotation), the robot body with the oblate cylindrical structure has better environmental adaptability, for example, the possibility of collision with surrounding objects (such as furniture, walls and the like) is reduced or the collision strength is reduced to reduce the damage to the cleaning robot and the surrounding objects when the cleaning robot moves, and the steering or the rotation is more facilitated. However, the present invention is not limited thereto, and in other embodiments, the robot body may also adopt a rectangular structure, a triangular prism structure, or a semi-elliptic prism structure (also referred to as a D-shaped structure).

Generally, the top surface of the housing 101 is further provided with a top cover 102, and the top cover 102 is rotatably connected to the housing 101 through a rotating structure. The top cover 102 may be located at the rear of the housing 101, but not limited thereto, and the top cover 102 may also be located at the front of the housing 101. In some embodiments, the rotating structure may have a rotating end rotatably connected to the housing 101 and a connecting end fixedly connected to the top cover. In practice, opening, closing, etc. of the cover 102 is achieved by toggling the distal end of the cover 102 away from the rotating structure, causing the cover 102 to flip relative to the housing 101 about the rotating structure.

The top surface of the casing 101 is further provided with a key area, and the key area is provided with one or more function keys, for example: a power button, a charging button, a cleaning mode selection button, etc. In some embodiments, the keys are also provided with status display lamps, and the status of the keys is displayed so as to provide better human-computer user experience. In a specific implementation, the status display lamp may have different selections of display colors and display modes, for example, the status display lamp may display different light colors according to different statuses (e.g., normal, standby, failure, etc.), the status display lamp may display different light colors according to different functions (e.g., power, charging, cleaning mode, etc.), and the status display lamp may also adopt different display modes (e.g., normal, standby, failure, etc.) according to different statuses (e.g., normal, standby, failure, etc.) or different functions (e.g., power, charging, cleaning mode, etc.) (e.g., normal, breathing light mode, flashing, etc.).

The top surface of the housing 101 may also be provided with other means. For example, in some embodiments, a camera device may be disposed on the top surface of the housing 101, the number of the camera devices may be one or more, and the structure and setting information of the camera device may be described in detail later. In some embodiments, a sound pickup may be provided on the top surface of the housing 101 for picking up ambient sounds from the cleaning robot during a cleaning operation or voice commands from a user. In some embodiments, a microphone may be disposed on the top surface of the housing 101 for playing voice information. In some embodiments, a touch display screen may be disposed on the top surface of the housing 101, so as to achieve a good human-machine experience.

In order to protect the cleaning robot, the robot body is further provided with an anti-collision assembly for avoiding damage caused by collision of the cleaning robot with peripheral objects in a cleaning environment. The collision avoidance module may be, for example, a bumper for cushioning the cleaning robot from colliding with surrounding objects during movement. The bumper is substantially in the shape of a circular arc sheet, which is mountable at a forward portion of a side panel of the robot body. An elastic structure can be arranged between the bumper and the robot body, so that a telescopic elastic space is formed between the bumper and the robot body. When the cleaning robot collides with an obstacle, the bumper is stressed and then contracts towards the robot body, so that impact force generated by the collision of the cleaning robot to the obstacle is absorbed and resolved, and the robot body is protected. In some embodiments, the bumper may be a multi-layer structure, or a soft rubber strip may be provided on the outer side of the bumper.

In one embodiment, the cleaning robot further comprises a power supply device for supplying power to other power consuming systems (e.g., power system, control system, cleaning system, etc.). In practical embodiments, the power supply device comprises a rechargeable battery (pack), such as a conventional nickel metal hydride (NiMH) battery, which is economically reliable, or other suitable rechargeable battery (pack), such as a lithium battery, which has a higher volumetric specific energy than a nickel metal hydride (NiMH) battery, and has no memory effect and can be charged with use, thereby greatly improving convenience. The rechargeable battery (pack) is mounted in a battery recess of the chassis, which may be sized according to the battery (pack) to be mounted. The rechargeable battery (pack) can be mounted in the battery recess in a conventional manner, such as a spring latch. The battery recess may be closed by a battery cover which may be secured to the chassis in a conventional manner, such as by screws. The rechargeable battery (pack) can be connected with a charging control circuit, a battery charging temperature detection circuit and a battery under-voltage monitoring circuit, and the charging control circuit, the battery charging temperature detection circuit and the battery under-voltage monitoring circuit are connected with the control system. The cleaning robot is connected with the charging seat through a charging electrode arranged on the side or the bottom of the robot body for charging. In addition, the power supply device can comprise a main battery and a standby battery under necessary conditions, and when the electric quantity of the main battery is too low or an outlet wire fails, the standby battery can be switched to work.

Referring to fig. 12, as shown in the figure, the power system includes driving wheels 13 disposed on opposite sides of the robot body for driving the robot body to move. The driving wheels 13 are installed along either side of the chassis 100, and generally the driving wheels 13 are provided at the rear end of the cleaning system for driving the cleaning robot to reciprocate back and forth, rotate or curve according to a planned movement trajectory, or to adjust the posture of the cleaning robot, and to provide two contact points of the body with the floor surface. The drive wheel 13 may have a biased drop-type suspension system, movably secured, such as rotatably mounted, to the robot body, and receiving a spring bias biased downwardly and away from the robot body. The spring bias allows the drive wheel to maintain contact and traction with the ground with a certain landing force to ensure that the tread of the drive wheel 13 is in sufficient contact with the ground. In the present application, when the cleaning robot needs to turn or curve, the rotation speed difference of the driving wheels 13 on both sides of the robot body is driven by the adjuster to realize steering.

In some embodiments, at least one driven wheel 14 (also referred to as a sub-wheel, a caster wheel, a roller, a universal wheel, etc. in some embodiments) may also be provided on the robot body to stably support the body. For example, a driven wheel 14 is provided on the robot body and located at a front portion of the driving wheel 13, and the driven wheel 14 maintains balance of the robot body in a moving state together with the driving wheel 13.

In order to drive the driving wheel 13 and the driven wheel 14 to operate, the power system further comprises a driving motor and a control circuit for controlling the driving motor, the driving circuit for controlling the driving motor is electrically connected with the control system, and the driving wheel 13 can be driven to move by the driving motor. In a specific implementation, the drive motor may be, for example, a reversible drive motor.

The cleaning system is arranged on the robot body and used for executing cleaning operation according to a control instruction of the control system. In an embodiment, the cleaning system includes a cleaning assembly and an edge sweep assembly 15. In some embodiments, referring to fig. 1 and 6, as shown in the drawings, the bottom center region of the chassis 100 has a receiving groove 11 and a housing 12, wherein the receiving groove 11 and the housing 12 are combined to form a cavity, which is a roller brush chamber 23, the cleaning assembly is disposed in the roller brush chamber 232, and a brush cleaning chamber opening (also referred to as a dust suction opening) is disposed at a lower portion of the housing 12, and the cleaning assembly protrudes from the brush cleaning chamber opening to contact with the ground to be cleaned. In an embodiment, the cleaning assembly comprises a roller brush 20, a first spindle set 21 and a second spindle set 22.

Referring to fig. 1 to 4, as shown in the drawings, the roller brush 20 is disposed in a roller brush chamber 23 at the bottom of the cleaning robot, and the roller brush 20 includes a shaft core 200 and a brush body 201 mounted on the shaft core 200.

The brush body 201 includes a brush body 2010 and/or a rubber brush body 2011. In one embodiment, the brush body 201 comprises a brush body 2010, the growth direction of the brush body 2010 is substantially consistent with the radial direction of the shaft core 200, and the brush body 2010 is used for sweeping garbage in the sweeping process of the cleaning robot; in another embodiment, as shown in fig. 3, the brush 201 includes a rubber brush 2011, a growth direction of the rubber brush 2011 substantially coincides with a radial direction of the shaft core 200, and the cleaning robot cleans the garbage with the rubber brush 2011 in the cleaning process; in another embodiment, as shown in fig. 2, in order to achieve various cleaning environments such as blankets and floors and dust collection efficiency, the brush body 201 includes a brush body 2010 and a rubber brush body 2011, the brush body 2010 and the rubber brush body 2011 are alternately arranged at intervals, and the growth direction of the brush body 2010 and the radial direction of the shaft core 200 are substantially consistent, so that wind is easily lost from gaps due to the large gaps between the brush tufts on the brush body 2010, and the formation of a vacuum environment is less facilitated. Therefore, by setting the rubber brush 2011, a wind inlet effect can be formed, and when the wind inlet strength reaches the preset strength, the sweeping of the cleaning object can be assisted, so that garbage can be cleaned more conveniently under the sweeping of the roller brush 20 and the blowing of wind.

In an embodiment, the rubber brush 2011 is configured as a V-shaped or U-shaped spiral structure, and the tip of the "V" shape is located at the middle position of the roller brush 20 and faces the walking direction of the cleaning robot, so that in the rolling and sweeping process of the roller brush 20, the garbage is gathered from the two sides to the middle position by the two opposite sides of the V-shaped or U-shaped spiral structure, so that part of dust, especially large-particle garbage, is easier to be cleaned, and the cleaning efficiency is greatly improved due to the simple structure. Further, in order to alleviate the impact of the garbage on the roller brush 20, referring to fig. 2 and fig. 3, as shown in the figure, a plurality of notches are formed on the rubber brush body 2011, and the notches are arranged at both sides with gradually increasing intervals, beginning at the center of the rubber brush body. Of course, the glue bodies 2011 of the roller brush 20 may be arranged in other spiral arrangements, such as "\"/", staggered toward the middle of the roller brush 20, which may also have the effect of collecting the garbage toward the middle of the roller brush 20

Referring to fig. 4 and 5, as shown in the figure, the shaft core 200 includes a first shaft connecting portion 202 located at a first end of the shaft core 200 and used for connecting the first rotating shaft group 21, a second shaft connecting portion 203 located at a second end of the shaft core 200 and used for connecting the second rotating shaft group 22, and an isolating portion 204 used for isolating the first shaft connecting portion 202 from the second shaft connecting portion 203.

In one embodiment, the first and/or second

shaft connecting portions

202 and 203 have a counterbore 205. In one embodiment, the first shaft coupling portion 202 has a counter bore 205, and the counter bore 205 is used for connecting the first shaft group 21 to the first end of the shaft core 200, so as to facilitate assembling or disassembling the first shaft group 21 to the roller brush 20; in another embodiment, the second shaft connecting portion 203 has a counter bore 205, and the counter bore 205 is used for connecting the second rotating shaft group 22 to the second end of the shaft core 200, so as to facilitate assembling or disassembling the second rotating shaft group 22 to the roller brush 20; in other embodiments, each of the first and second

shaft connecting portions

202 and 202 has a counterbore 205 for connecting the first rotating shaft group 21 to the first end of the shaft core 200, and the second rotating shaft group 22 is connected to the second end of the shaft core 200, so as to facilitate assembling or disassembling the first rotating shaft group 21 and the second rotating shaft group 22 to or from the roller brush 20.

In order to avoid relative movement between the first and second sets of

shafts

21, 22 and the shaft core 200 in the radial direction, in an embodiment, a single or a plurality of grooves 2050 are formed on the inner wall of the upper hole of the counterbore 205. However, the present invention is not limited to this, in other embodiments, for example, the upper hole position of the counterbore 205 may be set to a non-circular structure such as a triangle, a square, an irregular polygon, etc. to avoid the relative movement between the first rotating shaft group 21 and the second rotating shaft group 22 and the radial direction of the shaft core 200.

Referring to fig. 1 and 6, as shown in the figure, the first rotating shaft group 21 is connected to a first end of the shaft core 200 and clamped at a driving end of the roller brush chamber 23. In an embodiment, the first rotating shaft group 21 is connected to a first shaft connecting portion 202 at a first end of the shaft core 200, one end of the roller brush chamber 23 having a driving system (not shown) for driving the roller brush 20 to rotate is a driving end of the roller brush chamber 23, and an opposite end of the roller brush chamber 23 located at the driving end is a driven end of the roller brush chamber 23. It should be noted that the driving system includes a driving motor for driving the roller brush 20 to rotate to clean the ground.

Referring to fig. 4, 7 and 8, in an embodiment, as shown in fig. 8, the first rotating shaft assembly 21 includes a first rotating shaft 210, a first inner cover 211, a first outer cover 212 and a shaft assembly 213.

In order to prevent hairs from entering the gaps between the inner and outer covers, in an embodiment, an annular isolation groove 2112 is formed at a side of the first inner cover 211 corresponding to the first outer cover 212, and the cover rim 2120 of the first outer cover 212 is located in the annular isolation groove 2112. Thus, when the first rotating shaft 210 is driven to rotate, the annular isolation groove shields the gap between the inner cover and the outer cover of the 2112, and the entering of hair is reduced.

Referring to fig. 9 and 10, as shown in the figure, in the embodiment, the second rotating shaft assembly 22 includes a second rotating shaft 220, a second inner cover 221 and a second outer cover 222.

In order to prevent or reduce the entry of hair into the gap between the inner and outer covers, in an embodiment, the second inner cover 221 is formed with an annular separation groove 2212 at a side corresponding to the second outer cover 222, and the cover rim 2220 of the second outer cover 222 is located in the annular separation groove 2212. Thus, when the second rotating shaft 220 is driven to rotate, the annular separating groove 2212 shields the gap between the inner cover and the outer cover, and the entry of hairs is reduced.

The vessel 11 may be, for example, a floating system support or a fixed frame, and the casing 12 may be, for example, a roller brush cover or a fixed frame.

Taking the floating system bracket as an example, the floating system bracket may further include a fixed bracket and a floating bracket. One side of the floating bracket can be coupled to the fixed bracket through a shaft rotating structure, so that the other side of the floating bracket can float up and down relative to the fixed bracket. In addition, in the floating system support, the rear end of the floating support is provided with a dust inlet opening, the rear end of the fixed support is provided with a corresponding dust inlet opening, and the dust inlet opening of the floating support is communicated with the dust inlet opening of the fixed support through a telescopic flexible air inlet channel. The flexible air inlet channel can be in the floating support is relative when the fixed bolster floats about relative, specifically, when the floating support is relative when the fixed bolster is kept away from, the floating support with flexible air inlet channel between the fixed bolster extends, when the floating support is relative the fixed bolster is close to, the floating support with flexible air inlet channel between the fixed bolster contracts. When the cleaning robot is in a normal cleaning process, the floating support in the floating system support floats to the lowest position under the action of gravity, and a cleaning component arranged in the floating system support can cling to the ground to be cleaned no matter on the floor, a carpet or other non-smooth cleaning surfaces, so that the most efficient floor-to-floor sweeping is realized, and meanwhile, the cleaning robot has a better floor-to-floor effect on different types of cleaning surfaces, so that the sealing property of an air duct is obviously contributed. In addition, when the height of the cleaning ground is fluctuated or an obstacle exists on the cleaning ground, the interaction between the cleaning component and the obstacle can be reduced through the up-and-down floating of the floating support, so that the cleaning robot is assisted to complete obstacle crossing operation, the cleaning component can be protected, and the service life of the cleaning robot is prolonged.

It should be noted that, in general, the wider the width of the roller brush 20 in the cleaning assembly, the wider the cleaning coverage, and the wider the width of the single cleaning, the dust collecting box is used as a garbage accommodating part, which is arranged in the housing together with the driving wheel and the like, the width is limited, and in order to increase the vacuum cleaning pressure to suck the garbage into the dust collecting box, the dust inlet of the dust collecting box cannot be wide, therefore, the section from the brush cleaning cavity opening of the cleaning assembly in the floating bracket to the dust inlet opening of the floating bracket is reduced.

The roller brush cover is detachably covered on the bottom of the floating system bracket or the fixed frame. When the roller brush cover covers the floating system bracket or the fixed frame, a roller brush chamber capable of accommodating the cleaning assembly is formed between the roller brush cover and the floating system bracket or the fixed frame, and the roller brush of the cleaning assembly is limited in the roller brush chamber. The roller brush cover is provided with an opening which corresponds to the roller brush and can expose the brush body and the rubber brush body in the roller brush. In some embodiments, a scraping strip is provided on the rear edge of the opening of the roller brush cover (i.e., the scraping strip is located behind the roller brush along the cleaning robot), and the scraping strip and the roller brush are kept at a certain interval (e.g., 1 mm to 3 mm), and by being attached to the cleaning floor, a small part of the garbage which is not directly rolled up by the roller brush can be intercepted and scooped up, so that the garbage can be rolled up under the sweeping action of the roller brush and the suction of the fan. The position and angle of the scraping strip are selected so that the garbage is always in the optimal cleaning and suction position, and the phenomenon that the garbage is left behind the rubber strip is avoided. In practical application, the scraping strip can be made of a soft rubber material and is detachably arranged on the roller brush cover.

The edge brush assembly 15 is disposed at the edge of the bottom of the chassis 100. in some embodiments, the edge brush assembly 15 may include a cleaning edge brush and an edge brush motor for controlling the cleaning edge brush. In the embodiment shown in fig. 12, the number of the cleaning side brushes may be at least one, and the cleaning side brushes may be disposed at opposite sides of the front portion of the robot body (if the number of the cleaning side brushes may be at least two, the at least two cleaning side brushes are symmetrically disposed at opposite sides of the front end of the robot body, respectively), and the cleaning side brushes may be rotary cleaning side brushes, and may rotate under the control of the side brush motor. In some embodiments, the rotation axis of the rotary cleaning edge brush is at an angle relative to the ground (which may be set parallel to the floor of the chassis of the robot body), for example, the angle may ensure that the outer bristles of the cleaning edge brush are lower than the inner bristles, so that the outer bristles are closer to the ground, which is more advantageous for sweeping debris and the like into the rolling brush area.

The dust collection system is disposed within the housing for collecting dust collected by the cleaning system during cleaning operations. In an embodiment, the dust collection system comprises a dust collection box, a dust suction fan and a corresponding air duct structure.

In an embodiment, the dust bin is mountable in a receiving space of the chassis, which receiving space opens in a central area of the chassis, the size of the receiving space being customizable in accordance with the dust bin to be mounted. The dust container may be mounted in said receiving space in a conventional manner, such as a spring latch or directly placed. In some embodiments, the dust bin is provided with a handle or gripping structure (e.g., grooves, bumps, etc.) to facilitate gripping. The handle can adopt a pull-type handle or a turnover-type handle.

The dust collecting box at least comprises a dust collecting cavity, a dust inlet and an air outlet which are communicated with the dust collecting cavity, and a filter element or a similar filter screen structure is arranged at the air outlet of the dust collecting box, wherein the filter element or the similar filter screen structure is detachably designed and can be repeatedly used, for example, cleaned by a brush or washed by water. The dust inlet of the dust collection box is provided with a sealing strip or a sealing ring and corresponds to the dust inlet opening of the fixed bracket in the floating system bracket, so that the dust inlet of the dust collection box is communicated with the floating bracket through the air inlet channel between the fixed bracket and the floating bracket. The air outlet of the dust collecting box is provided with a sealing strip or a sealing ring.

In addition, the dust collecting box is designed to be openable, in some embodiments, the dust collecting box can be divided into a box body and a box cover, the box body is provided with a dust collecting cavity, the air outlet and a filter element or similar filter screen structure at the air outlet are arranged on the box body, the box cover is provided with a dust inlet, and the box cover can be coupled to the box body in a shaft manner such as a rotating shaft and can be covered on the box body in a manner such as a buckle.

The dust collection fan is provided with an air inlet and an air outlet, the air inlet of the dust collection fan is communicated with the air outlet of the dust collection box through a connecting channel, and the air outlet of the dust collection fan is communicated with an exhaust channel. Therefore, the air duct structure described in the present application can at least include the dust inlet opening of the floating support and the flexible air inlet channel between the dust inlet openings of the fixed support, the connecting channel between the dust collecting box and the dust collecting fan, and the air exhaust channel communicated with the air outlet of the dust collecting fan. The exhaust duct may be secured to the chassis 100 by mounting structures, which in some embodiments may be, for example, screw locks or the like.

In practical application, a fan motor in the dust collection fan drives a fan to rotate so that airflow doped with garbage enters a dust collection box through a dust inlet, the garbage in the airflow is filtered by a filter element or a similar filter screen structure and then is stored in the dust collection box, the filtered airflow enters the dust collection fan from an air outlet through a connecting channel, and then is exhausted out of the cleaning robot from the air outlet of the dust collection fan through an exhaust channel, most of the airflow flows in the main channel in the exhaust channel, but in an area where the exhaust channel turns or the airflow is turbulent, part of the airflow can be dissipated into a side auxiliary channel through an exhaust guide element, flows in the auxiliary channel and then flows back to the main channel through the exhaust guide element to be converged, and the airflow is well divided and guided. The air exhaust channel formed on the whole is long, noise elimination is facilitated, air flow is finally exhausted out of the cleaning robot, the cleaning robot can form a relatively sealed space, and dust is not prone to entering the cleaning robot. In addition, the air outlet of the air exhaust channel is of an outward expansion structure which is gradually enlarged, so that air exhaust is facilitated, and meanwhile, the effect of reducing wind noise can be achieved.

As mentioned above, the air outlet of the dust collecting box is provided with a filter element or similar filter screen structure for filtering air, so as to prevent the dust in the dust collecting box from escaping and damaging the dust collecting fan at the back, and to prevent the blockage of the filter element or similar filter screen structure from affecting the smooth air passage, the sectional area of the air outlet of the dust collecting box is usually larger, and the air inlet of the dust collecting fan is far smaller than the air outlet of the dust collecting box, therefore, the cross section of the connecting channel which is communicated with the air outlet of the dust collecting box and the air inlet of the dust collecting fan is also reduced, so that the air coming out from the filter element or similar filter screen structure of the dust collecting box enters the dust collecting fan in a certain direction with the least loss.

In order to detect whether the dust collecting box is located in the accommodating space, the dust collecting system can be also provided with a dust collecting box location detecting mechanism. In some embodiments, the dust box falling position detecting mechanism may include a hall sensor and a magnet, wherein the hall sensor is disposed on the robot body, for example, on a mounting structure adjacent to the accommodating space in the chassis 100, and the hall sensor is connected to the control system on the chassis 100, and the magnet is disposed on a side or bottom of the dust box or on the filter element or similar filter screen structure. The magnet is arranged on the filter element or the similar filter screen structure, and the filter element or the similar filter screen structure cannot be missed after the dust collection box is placed in the accommodating space, so that the risk that the garbage in the dust collection box enters the fan to cause damage is avoided when the filter element or the similar filter screen structure is missed. In practical application, when the dust collection box is placed in the accommodating space, when the magnet on the dust collection box corresponds to the hall sensor at the accommodating space, the hall sensor outputs a pulse signal because the magnet changes under the action of a magnetic field and cuts magnetic lines of force, so as to determine that the dust collection box is placed in place and correctly placed in the accommodating space, when the magnet on the dust collection box does not correspond to the hall sensor at the accommodating space, the hall sensor does not output the pulse signal, and the control system outputs an alarm signal because the control system does not receive the corresponding pulse signal, so as to remind a user that the dust collection box is not placed in place (or the filter element or a similar filter screen structure is not placed in place).

In an embodiment, the cleaning robot further includes a sensing system for sensing the relevant signals and physical quantities to determine position information and motion state information of the mobile device, and the like. In some embodiments, the sensing system may include a camera, a Laser Direct Structuring (LDS), various sensing devices, and the like, wherein the devices may be combined differently according to product requirements. For example, in one implementation, the sensing system may include a camera device and various types of sensing devices. In one implementation, the sensing system may include a laser ranging device and various sensing devices. In one implementation, the sensing system may include a camera device, a laser ranging device, and various sensing devices. In these implementations, the number of the image capturing devices may be one or more.

In some embodiments, the at least one camera may be disposed on a top surface of the robot body (e.g., a central region of the top surface, a front end of the top surface opposite the central region, a rear end of the top surface opposite the central region), and an optical axis of the at least one camera is at an acute or near right angle to a plane formed by the top surface for capturing images of an operating environment of the cleaning robot for facilitating subsequent VSLAMs (Visual Simultaneous Localization and Mapping) and object recognition. For example, in an implementation manner, a monocular camera may be disposed on the top surface of the robot body, the monocular camera may calculate the change of the camera pose through adjacent image matching, perform triangulation ranging on two viewing angles and obtain depth information of corresponding points, and positioning and mapping may be implemented through an iterative process. In one implementation mode, the top surface of the robot body can be provided with a binocular camera, the monocular camera can calculate depth information through a triangulation method, and positioning and mapping can be achieved through an iteration process. In an implementation mode, the top surface of the robot body can be provided with a fisheye camera which protrudes out of the top surface of the robot body, and a panoramic image can be obtained through the fisheye camera.

In some embodiments, the at least one camera may be disposed on a side surface of the robot body. For example, in one implementation, the at least one camera may be disposed on a side surface of the front of the robot body.

In some embodiments, the at least one camera device may be disposed at a junction between the top surface and the side surface of the robot body, for example, in an implementation, at least one concave structure may be disposed at the junction between the top surface and the side surface of the robot body, and the at least one camera device is disposed in the corresponding at least one concave structure, so that the camera device has a wider camera view angle, obtains image data with more information, obtains more accurate distance measurement and determines the position and the posture of the mobile robot by using the image data of the camera device, and improves accuracy and reliability of vision-based simultaneous positioning and mapping. For information on the recessed structure and the setting position, setting mode, design structure, working mode, etc. of the image capturing device, reference may be made to the related description in the patent application (title of the invention: mobile robot, publication number: CN207424680U) filed by the applicant in 2017, 11, 20.

The sensing system may include a variety of sensors for a variety of different purposes including, but not limited to, any one or combination of pressure sensors, gravity sensors, ranging sensors, cliff sensors, drop sensors, collision detection sensors, and the like.

In some embodiments, a pressure sensor may be provided on the vibration absorbing device of the driving wheel to determine whether the moving device passes through a concave-convex surface of the cleaning region by detecting a pressure change of the vibration absorbing device, and the vibration absorbing movement of the vibration absorbing device causes the pressure sensor to output a pressure signal different from a pressure signal on a flat floor when the cleaning robot passes through the concave-convex surface. In some embodiments, a pressure sensor may be provided on a bumper assembly (e.g., a bumper, etc.) of the cleaning robot, and when the bumper assembly collides with an obstacle, the pressure-reducing vibration of the bumper assembly causes the pressure sensor to output a pressure signal generated based on the collision.

In some embodiments, the gravity sensor may be disposed at any position of the robot body, and determine whether the mobile device passes through the concave-convex surface of the cleaning region by detecting a gravity value of the cleaning robot, which changes when the cleaning robot passes through the concave-convex surface.

The distance measuring sensor can detect the vertical distance change between the chassis of the cleaning robot and the ground and the distance change between the cleaning robot and peripheral objects. In some embodiments, the ranging sensor may be disposed on a chassis of the cleaning robot, and determine whether the mobile device passes through a concave-convex surface of the cleaning region by detecting a distance between the chassis of the cleaning robot and the floor surface, and the ranging sensor may be capable of detecting a change in the distance between the chassis of the cleaning robot and the floor surface when the cleaning robot passes through the concave-convex surface. In some embodiments, the ranging sensor may be disposed on a bumper assembly of the cleaning robot for enabling the ranging sensor to detect changes in distance of the cleaning robot from other objects in the cleaning environment while the cleaning robot is traveling. As described above, the collision-prevention component is exemplified by a bumper, which is in the shape of a circular arc and is disposed at the front of the robot body. In a specific implementation, the distance measuring sensors may include a plurality of infrared distance measuring sensors, for example, the number of the infrared distance measuring sensors may be four, six or eight, and the infrared distance measuring sensors are respectively symmetrically disposed on two opposite sides of the bumper. Each path of infrared distance measuring sensor is provided with an infrared signal transmitter and an infrared signal receiver, a beam of infrared light is transmitted by the infrared signal transmitter and reflected after irradiating an object, the reflected infrared light is received by the infrared signal receiver, and the distance between the cleaning robot and the object is calculated according to time difference data of the transmission and the reception of the infrared light. In one implementation, the ranging sensor may include a ToF sensor, the ToF (time of flight) technique. The number of ToF sensors may be plural, for example, the number of ToF sensors is two, and the ToF sensors are symmetrically disposed on two opposite sides of the bumper respectively. The ToF sensor transmits the modulated near-infrared light, reflects the modulated near-infrared light after encountering an object, receives the reflected light, and calculates the distance between the cleaning robot and the object by calculating the time difference or phase difference between the light transmission and the light reflection. In a particular implementation, the range sensor may include an ultrasonic range sensor, which may be disposed on a forward-most end centered in the bumper. The ultrasonic ranging sensor is provided with an ultrasonic transmitter and a sound wave receiver, the ultrasonic transmitter is used for transmitting ultrasonic waves, the counter starts timing at the same time of transmitting time, the ultrasonic waves are transmitted in the air and are immediately reflected back when being blocked by an object on the way, and the ultrasonic receiver immediately stops timing when receiving the reflected ultrasonic waves, so that the distance between the cleaning robot and the object is calculated according to the time recorded by the timer. In practical application, the various distance measuring sensors can be combined for use, and the distance measuring modes in various modes can achieve good balance in the aspects of distance measuring range, distance measuring accuracy, cost and the like.

Collision detection sensor sets up on the robot and is correlated with the bumper, mainly include light emitter, light receiver and be located the collision telescopic link between light emitter and the light receiver, under normal condition, the collision telescopic link is in the initial position, the light path is unblocked between light emitter and the light receiver, when cleaning machines people dodge untimely and collide the barrier, the bumper that is located cleaning machines people front portion will receive the impact of barrier and the relative robot is internal sunken, at this moment, the collision telescopic link that is located the bumper inboard contracts and blocks between light emitter and light receiver after the atress, the light path between light emitter and the light receiver is cut off, collision detection sensor sends collision signal.

The cliff sensor is arranged at the bottom of the robot body. In some embodiments, the number of the cliff sensors is multiple, for example, four, and the cliff sensors are respectively arranged at the front end of the bottom of the robot body and used for transmitting sensing signals to the ground and sensing the cliff by using the signals received by reflection. Cliff sensors are also known as hover sensors, which are optical sensors that primarily utilize a variety of modalities, and in some embodiments, cliff sensors may employ infrared sensors having infrared signal transmitters and infrared signal receivers so that a cliff may be sensed by transmitting infrared light and receiving reflected infrared light, and further, the depth of the cliff may be analyzed.

Of course, in certain embodiments, the sensing device may also include other sensors, such as magnetometers, accelerometers, gyroscopes, odometers, and the like.

The control system is arranged in the shell and used for controlling the work of each system. In one embodiment, the control system is disposed on a circuit board within the robot body, and includes a memory (e.g., a hard disk, a flash memory, a random access memory), a processor (e.g., a central processing unit, an application processor), and the like. The processor draws an instant map of the environment where the cleaning robot is located by using a positioning algorithm (such as SLAM) according to object information fed back by a laser ranging device in the sensing system, or draws the instant map of the environment where the cleaning robot is located by using the positioning algorithm (such as VSLAM) according to image information shot by a camera device in the sensing system, so that the most efficient and reasonable cleaning path and cleaning mode are planned based on the drawn instant map information, and the cleaning efficiency of the robot is greatly improved. And the current working state of the sweeper is comprehensively judged by combining distance information, speed information, attitude information and the like fed back by other sensors (such as a pressure sensor, a gravity sensor, a distance measuring sensor, a cliff sensor, a falling sensor, a collision detection sensor, a magnetometer, an accelerometer, a gyroscope, an odometer and the like) in the sensing system, so that specific next-step action strategies can be provided according to different conditions, and corresponding control instructions are sent to the cleaning robot.

When cleaning work is done to ground through the cleaning robot that this application discloses, can prevent effectively or reduce the hair and twine on cleaning assembly and clear away the hair that twines on cleaning assembly, not only avoid or the manual work that has significantly reduced clearance roller brush, strengthened user experience and felt, improved cleaning robot's cleaning efficiency moreover.

The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.

Claims

1. A cleaning assembly for a cleaning robot, comprising:

the roller brush is arranged in a roller brush chamber at the bottom of the cleaning robot and comprises a shaft core and a brush body arranged on the shaft core;

the first rotating shaft group is connected to the first end of the shaft core and clamped at the driving end of the roller brush chamber;

the second rotating shaft group is connected to the second end of the shaft core and clamped at the driven end of the roller brush chamber; the second spindle group is spatially separated from the first spindle group in the spindle core.

2. A cleaning assembly for a cleaning robot according to claim 1, wherein the brush body comprises a brush body or/and a glue brush body.

3. A cleaning assembly for a cleaning robot according to claim 1, wherein the spindle includes a first shaft coupling portion at a first end of the spindle for connecting the first spindle group, a second shaft coupling portion at a second end of the spindle for connecting the second spindle group, and an isolation portion for isolating the first shaft coupling portion from the second shaft coupling portion.

4. A cleaning assembly for a cleaning robot according to claim 3, wherein the partition is a solid structure of a shaft core, a stopper structure, or a through hole structure having a smaller hole diameter than the first or second shaft coupling portion.

5. A cleaning assembly for a cleaning robot as claimed in claim 3, wherein the first or/and second shaft connection portion has a counterbore.

6. A cleaning assembly for a cleaning robot as recited in claim 5, wherein said first set of spindles includes:

a first rotating shaft, the first end of which is connected with the first shaft connecting part of the shaft core, and the second end of which is connected with a driving system positioned at the driving end;

the first inner cover is fixed on the first rotating shaft and comprises an embedded structure which is correspondingly embedded in the counter bore;

the first outer cover is rotatably connected on the first rotating shaft in a shaft coupling mode and is mutually covered with the first inner cover;

and the shaft sleeve is fixed at the second end of the first rotating shaft and is used for connecting the driving system.

7. A cleaning assembly for a cleaning robot according to claim 6, wherein an inner cover for covering the first end of the shaft core is formed on a peripheral side of the fitting structure.

8. A cleaning assembly for a cleaning robot according to claim 6, wherein a receiving space is provided between the first outer cover and the first inner cover, and a bearing coupled to the first rotating shaft is provided in the receiving space.

9. A cleaning assembly for a cleaning robot according to claim 6, wherein the first outer cover has a shock absorbing layer.

10. A cleaning assembly for a cleaning robot according to claim 6, wherein a side of the first inner lid corresponding to the first outer lid is formed with an annular partition groove, and a lid rim of the first outer lid is positioned in the annular partition groove.

11. A cleaning assembly for a cleaning robot as recited in claim 10, wherein an adhesive member is disposed within the annular isolation groove.

12. A cleaning assembly for a cleaning robot according to claim 5, wherein said second spindle set includes:

the first end of the second rotating shaft is connected to the second shaft connecting part of the shaft core, and the second end of the second rotating shaft is clamped at the driven end clamped in the roller brush chamber;

the second inner cover is fixed on the second rotating shaft and comprises an embedded structure which is correspondingly embedded in the counter bore;

and the second outer cover is rotatably coupled on the second rotating shaft in a shaft connection mode and is mutually covered with the second inner cover.

13. A cleaning assembly for a cleaning robot according to claim 12, wherein the second end of the second rotary shaft has a neck portion, and the inner wall of the second outer cap penetration hole has a protrusion slidably disposed on the neck portion of the second rotary shaft to restrict the second outer cap from moving in the axial direction.

14. A cleaning assembly for a cleaning robot according to claim 12, wherein an inner cover for covering the second end of the shaft core is formed on a peripheral side of the fitting structure.

15. A cleaning assembly for a cleaning robot according to claim 12, wherein a receiving space is provided between the second outer cover and the second inner cover, and a bearing coupled to the second rotating shaft is provided in the receiving space.

16. A cleaning assembly for a cleaning robot according to claim 12, wherein the second cover has a shock absorbing layer.

17. A cleaning assembly for a cleaning robot according to claim 12, wherein a side of the second inner cover corresponding to the second outer cover is formed with an annular isolation groove, and a cover rim of the second outer cover is positioned in the annular isolation groove.

18. A cleaning assembly for a cleaning robot as recited in claim 17, wherein an adhesive member is disposed within the annular isolation groove.

19. A cleaning robot, characterized by comprising:

a robot body including a housing;

the power system comprises driving wheels which are arranged on two opposite sides of the robot body and used for driving the robot body to move;

a control system disposed within the housing for controlling the drive wheel;

the cleaning system is arranged on the robot body and used for executing cleaning operation according to a control instruction of the control system;

a dust collection system disposed within the housing for collecting dust collected by the cleaning system during a cleaning operation;

a cleaning assembly as claimed in any one of claims 1 to 18, provided in a roller brush chamber at the bottom of the robot body for performing cleaning work in a rotating state.