CN216535131U

CN216535131U - Cleaning robot

Info

Publication number: CN216535131U
Application number: CN202122635913.9U
Authority: CN
Inventors: 胡逸; 李雪花; 李雪玲
Original assignee: Shenzhen Silver Star Intelligent Technology Co Ltd
Current assignee: Shenzhen Silver Star Intelligent Group Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-17
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a cleaning robot, which comprises a robot body, a rolling brush and a cutting piece, wherein the rolling brush is arranged on the robot body; the bottom of the machine body is concavely provided with a mounting cavity; the rolling brush is rotatably arranged in the mounting cavity, at least part of the rolling brush extends out of the opening of the mounting cavity, and an avoidance notch extending along the circumferential direction of the rolling brush is formed on the rolling brush; the cutting piece is installed in the machine body and at least partially extends into the avoiding gap so as to cut the object crossing the avoiding gap. So set up, can avoid hair, silk thread and the flocculus on the round brush to obstruct the flow of air to ensure the suction of the uncovered department of this installation cavity, guaranteed this cleaning robot's clean efficiency.

Description

Cleaning robot

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a cleaning robot.

Background

A series of cleaning robot machines, such as a sweeping robot, a mopping robot, and the like, are devices configured to perform a cleaning task while traveling in an arbitrary area without user control, and are generally used to clean stains on the floor.

When an existing sweeping robot and a mopping and sweeping integrated robot clean the opposite ground, sundries such as dust, paper scraps and the like on the ground need to be brushed through a rolling brush, and then air is sucked through a suction device so that the brushed sundries such as the dust, the paper scraps and the like are sucked into a dust collection cavity through a dust collection opening.

However, the existing roller brush generally comprises a rotating shaft and bristles planted on the rotating shaft, and the bristles are easily twisted when contacting with hair, silk threads and floccules, so that a dust collecting opening of the cleaning robot is blocked, the suction force of the cleaning robot is affected, and the cleaning performance of the cleaning robot is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a cleaning robot, aiming at preventing hair, silk threads and floccules wound on a rolling brush from influencing the adsorption force of the cleaning robot.

In order to achieve the above object, the present invention provides a cleaning robot, which is characterized in that the cleaning robot comprises a machine body, a rolling brush and a cutting member;

wherein, the bottom of the machine body is concavely provided with a mounting cavity; the rolling brush is rotatably arranged in the mounting cavity, at least part of the rolling brush extends out of the opening of the mounting cavity, and an avoidance gap extending along the circumferential direction of the rolling brush is formed on the rolling brush; the cutting piece is installed in the machine body and at least partially extends into the avoiding gap so as to cut the object crossing the avoiding gap.

In some embodiments of the utility model, the cutting element is mounted within the mounting cavity.

In some embodiments of the utility model, the installation cavity has a turning-in side for the rolling brush to turn from the outside of the installation cavity to the inside of the installation cavity and a turning-out side for the rolling brush to turn from the inside of the installation cavity to the outside of the installation cavity;

the cutting piece has first connection side and the second connection side that the side of inciting somebody to action with the side of roll-out is close to each other or is kept away from in the direction relative setting, first connection side is close to the side of inciting somebody to action sets up, the second connection side is close to the side of roll-out sets up, first connection side is provided with the cutting edge.

In some embodiments of the utility model, the width of the cutting element in the axial direction of the roller brush tapers from the second connection side to the first connection side, so that the first connection side of the cutting element forms the cutting edge.

In some embodiments of the utility model, the first connection side is arranged along a radial extension of the roller brush, and the cutting edge is arranged along a direction of extension of the first connection side.

In some embodiments of the utility model, one end of the cutting member is connected with the highest position of the cavity wall of the installation cavity, and the other end of the cutting member extends into the avoidance gap, so that the cutting edge cuts an object crossing the avoidance gap in the horizontal direction.

In some embodiments of the present invention, the first connecting side extends along a radial direction of the roller brush, and a distance between the first connecting side and the second connecting side is gradually increased from the roller brush to a direction approaching a wall of the mounting cavity.

In some embodiments of the present invention, an end of the cutting member extending into the relief notch is provided with a hook portion protruding the cutting edge.

In some embodiments of the utility model, the cutting element further includes a third connecting side connecting the first connecting side and the second connecting side, and the second connecting side and the third connecting side are both arranged in a circular arc surface.

In some embodiments of the utility model, the bottom of the machine body is further provided with a blocking rib which crosses the opening of the installation cavity along a direction perpendicular to the axis of the rolling brush, and the middle part of the blocking rib extends into the avoiding gap.

In some embodiments of the present invention, the rolling brush is provided with at least two avoidance gaps, and the at least two avoidance gaps are arranged at intervals along the axial direction of the rolling brush; the number of the cutting pieces is the same as that of the avoidance gaps, and each cutting piece is installed on the machine body and at least partially extends into the corresponding avoidance gap.

According to the utility model, the avoiding gap is arranged on the rolling brush of the cleaning robot, the avoiding gap is arranged along the circumferential extension of the rolling brush, the cutting piece is arranged on the robot body of the cleaning robot, at least part of the cutting piece extends into the avoiding gap, and the cutting piece can effectively cut off objects which are wound on the rolling brush and cross the avoiding gap, so that cut hair, silk threads and floccules can be sucked away, further the situation that the hair, silk threads and floccules on the rolling brush block the flow of air is avoided, the suction force at the opening of the mounting cavity is ensured, and the cleaning efficiency of the cleaning robot is ensured. In addition, the cutting piece effectively cuts off the hair, the silk threads and the floccules on the roll brush, and can also effectively avoid the problem that the hair, the silk threads and the floccules cause blockage when the roll brush runs.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a top view of one embodiment of a cleaning robot of the present invention;

FIG. 2 is a cross-sectional view of the housing of the machine body of FIG. 1 assembled with a cutting element;

FIG. 3 is a schematic structural view of an embodiment of the roll brush in FIG. 1;

FIG. 4 is a cross-sectional view of a portion of the cleaning robot of FIG. 1;

FIG. 5 is an enlarged schematic view of portion A of FIG. 2;

fig. 6 is an assembly view of the housing and the cutter of the robot body in fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Cleaning robot	121	Avoiding gap
110	Machine body	130	Cutting member
				111	Shell body	131	First connection side
1111	Mounting cavity	132	Second connection side
				1112	Barrier rib	133	Cutting edge
112	WalkModule	134	Hook part
				120	Rolling brush	135	Third connection side

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

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

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.

Referring to fig. 1 to 4, the cleaning robot 100 includes a robot body 110, a rolling brush 120, and a cutting member 130.

The machine body 110 includes a housing 111, the housing 111 is used as an external member of the cleaning robot 100, and the shape of the housing 111 is various, the housing 111 may be disposed in a cylindrical shape, the housing 111 may also be disposed in a square shape, the housing 111 may also be disposed in other shapes, and preferably, the housing 111 is disposed in a cylindrical shape, which is beneficial to improving the overall aesthetic feeling of the cleaning robot 100.

The housing 111 may be provided with a dust collecting chamber (not shown), which may be formed by a cavity structure on the housing 111, or a dust collecting box assembled to the housing 111, and considering that the dust, paper dust and other impurities in the dust collecting chamber need to be cleaned on time, the dust collecting chamber is preferably formed by the dust collecting box assembled to the housing 111, so that the dust collecting box can be conveniently detached from the housing 111, and the dust, paper dust and other impurities in the dust collecting chamber can be conveniently poured out.

The bottom of this casing 111 is provided with the installation cavity 1111 with the dust collection cavity intercommunication, and the uncovered setting of the lower extreme of this installation cavity 1111 to when making casing 111 arrange in on treating the cleaning face, the uncovered of this installation cavity 1111 is towards treating the cleaning face setting, and the uncovered shape of this installation cavity 1111 can be rectangle, oval and other shapes, and preferably, the uncovered of this installation cavity 1111 is the rectangle setting, so that the uncovered of installation cavity 1111 can stretch out from the installation cavity 1111.

The machine body 110 includes a suction device (not shown), which may be composed of an air pump and a pipe, a blower and a pipe, or other structural members, and the type of the suction device is not particularly limited.

The suction device is installed in the housing 111 and is communicated with the dust collection cavity, the suction device can drive air to flow from an opening of the installation cavity 1111 to the dust collection cavity, a filter module is generally arranged at a position where the suction device is communicated with the dust collection cavity, and the filter module can be filter cotton, a filter screen and other structural members capable of blocking particles.

The machine body 110 further includes a walking module 112, the walking module 112 is mounted on the housing 111, and the walking module 112 is used for driving the housing 111 to travel relative to the ground, so that other components mounted on the housing 111 of the cleaning robot 100 travel on the ground along with the housing 111.

The traveling module 112 may be composed of a steering motor, two power motors, two driving wheels and a universal wheel, the two driving wheels are respectively disposed at the left and right sides of the bottom of the housing 111, the two power motors are respectively connected with the corresponding driving wheels in a transmission manner, the universal wheel may be disposed at the front or the tail of the housing 111, the steering motor is used for driving the universal wheel to steer, and the two driving wheels rotate under the driving of the corresponding motors to drive the housing 111 to travel on the ground.

The walking module 112 may also be composed of a motor and two crawler structures, the two crawler structures are disposed on the left and right sides of the bottom of the housing 111, the two motors are respectively connected with the corresponding crawler structures in a transmission manner, and the two motors work and drive the corresponding crawler structures to operate, so as to drive the housing 111 to travel on the ground.

The rolling brush 120 is rotatably installed in the installation cavity 1111 and is in clearance fit with the cavity wall of the installation cavity 1111, the two ends of the rolling brush 120 in the axial direction are rotatably connected with the housing 111, and there are various ways of rotatably connecting the rolling brush 120 with the housing 111, for example, the rolling brush 120 is rotatably connected with the housing 111 through a rotating shaft and a bearing, and further, the rolling brush 120 is rotatably connected with the housing 111 through a rotating shaft and a shaft sleeve.

The rolling brush 120 is partially protruded from the opening of the mounting chamber 1111 when being mounted in the mounting chamber 1111, so that the outer circumferential wall of the rolling brush 120 can contact with the surface to be cleaned, for example, the protruding volume of the rolling brush 120 from the opening of the mounting chamber 1111 is one sixth of its own volume, and the protruding volume of the rolling brush 120 from the opening of the mounting chamber 1111 is one fifth of its own volume, it is noted that the protruding portion of the rolling brush 120 from the opening of the mounting chamber 1111 depends on the distance between the machine body 110 and the surface to be cleaned.

The rolling brush 120 is formed with an avoidance gap 121 extending along a circumferential direction thereof, and the avoidance gap 121 may be formed by, for example and without limitation, removing bristles planted on the rolling brush 120 and/or forming a gap in a soft rubber layer on the rolling brush 120.

The avoiding notch 121 is relatively small in width in the axial direction of the rolling brush 120, so that the problem that the cleaning performance of the rolling brush 120 is affected due to the fact that the cleaning area of the rolling brush 120 is reduced due to the fact that the avoiding notch 121 is formed in the rolling brush 120 can be solved, the depth of the avoiding notch 121 in the radial direction of the rolling brush 120 can be set according to the length of bristles on the rolling brush 120, and preferably, the depth of the avoiding notch 121 is equal to the length of bristles on the rolling brush 120.

The cutting member 130 can be installed in a plurality of installation positions, the cutting member 130 can be installed in the installation cavity 1111 of the housing 111, the cutting member 130 can be installed outside the installation cavity 1111 of the housing 111, and the cutting member 130 can be partially located in the installation cavity 1111 and partially located outside the installation cavity 1111, which is not limited in particular.

The cutting element 130 extends at least partially into the clearance gap 121, and it is understood that when the cutting element 130 is directly connected to the housing 111, an end of the cutting element 130 remote from the housing 111 extends into the clearance gap 121, and when the cutting element 130 is connected to the housing 111 through another adapter, the cutting element 130 may extend completely into the clearance gap 121.

The cutting member 130 can be of a variety of types, for example, the cutting member 130 can be formed by a blade fixedly mounted to the housing 111 that can sever hair, threads, and floes across the relief notch 121. For another example, the cutting member 130 may be composed of a circular blade and a motor, the motor is installed on the housing 111, the circular blade is fixed to an output shaft of the motor, the motor drives the circular blade to rotate, the circular blade partially extends into the avoiding gap 121 and can cut off hair, silk and floe joints crossing the avoiding gap 121.

When the cleaning robot 100 cleans the ground, the suction device of the cleaning robot 100 works to drive the air in the environment to sequentially pass through the installation cavity 1111, the dust collection cavity and the suction device and then to be discharged into the environment, so that a negative pressure can be formed at the opening of the installation cavity 1111, and the roller brush 120 can brush up impurities such as dust, paper dust and the like on the ground when being driven to rotate, so that the impurities such as the dust, the paper dust and the like on the ground are sucked into the dust collection cavity along with the air.

When the roller brush 120 brushes up dust, paper scraps and other impurities on the ground, if the roller brush 120 brushes up dust, paper scraps and other impurities on the ground, the roller brush is contacted with hair, silk threads and floccules, the hair, the silk threads and the floccules are directly wound, at the moment, when the roller brush 120 passes through the cutting piece 130, the cutting piece 130 can cut off the hair, the silk threads and the floccules crossing the avoiding gap 121, so that the hair, the silk threads and the floccules are shortened, the hair, the silk threads and the floccules can be sucked into the integrated cavity, the hair, the silk threads and the floccules are prevented from being accumulated in a channel communicated with the installation cavity 1111 and the dust cavity, the suction force at the opening of the installation cavity 1111 is ensured, and the cleaning efficiency of the cleaning robot 100 is ensured. In addition, the cutting member 130 effectively cuts the hair, the thread, and the floc on the roll brush 120, and also effectively prevents the malfunction that the hair, the thread, and the floc cause the jamming of the roll brush 120 during operation.

In view of the problem that the cutting member 130 is easily cut when exposed to the outside of the housing 111, in some embodiments of the present invention, referring to fig. 4, the cutting member 130 is installed in the installation cavity 1111, so that the cutting member 130 can be hidden inside the installation cavity 1111, and thus the cutting member 130 is not easily scratched even if the cleaning robot 100 is held by the user.

It should be noted that, when the rolling brush 120 rotates relative to the housing 111, the rotation direction of the rolling brush 120 is limited, for convenience of description, the side of the mounting cavity 1111, through which the rolling brush 120 rotates from the outside of the mounting cavity 1111 into the mounting cavity 1111, is defined as a turning-in side, and the side of the mounting cavity 1111, through which the rolling brush 120 rotates from the inside of the mounting cavity 1111 into the outside of the mounting cavity 1111, is defined as a turning-out side, and since the rotation direction of the rolling brush 120 is limited, it is only necessary to provide the cutting edge 133 on the corresponding side of the cutting member 130.

Specifically, the cutting member 130 has a first connecting side 131 and a second connecting side 132 spaced apart in a direction in which the rotation-in side of the mounting cavity 1111 is closer to or farther from the rotation-out side, the first connecting side 131 being disposed adjacent to the rotation-in side, the second connecting side 132 being disposed adjacent to the rotation-out side, the first connecting side 131 being provided with the cutting edge 133. With the arrangement, on one hand, the number of the cutting edges 133 can be reduced, the structure of the cutting piece 130 is simplified, and on the other hand, the cutting piece 130 is convenient for a user to take because only one side of the cutting piece 130 is provided with the cutting edges 133.

It should be noted that the cutting edge 133 may be formed in various manners, for example, the cutting edge 133 may be formed of a blade structure assembled to the cutting member 130, and the blade may be mounted to the cutting member 130 by welding, inserting, and other manners, and how the blade is fixed to the cutting member 130 is not particularly limited.

For another example, the cutting edge 133 is formed by the cutting member 130 itself, and the width of the cutting member 130 in the axial direction of the roller brush 120 is gradually decreased from the second connecting side 132 to the first connecting side 131, that is, the cross section of the cutting member 130 in the rotating direction of the roller brush 120 is formed in an acute triangle, so that the cutting member 130 can cut hair, thread and floccule.

Considering that the cutting angle of the cutting edge 133 and the hair, thread and floss crossing the relief notch 121 affects the cutting efficiency of the cutting edge 133, in some implementations of the present invention, referring to fig. 2, 4 and 5, the first connecting side 131 of the cutting element 130 is disposed to extend along the radial direction of the roller brush 120, and the cutting edge 133 is disposed to extend along the first connecting side 131, such that the cutting angle of the hair, thread and floss on the roller brush 120 and the cutting edge 133 is 90 °, which facilitates the cutting edge 133 to cut the hair, thread and floss quickly.

Further, one end of the cutting element 130 is connected to the highest position of the cavity wall of the mounting cavity 1111, and the other end of the cutting element 130 extends to the avoiding notch 121, at this time, the first connecting side 131 extends along the vertical direction, the cutting edge 133 also extends along the vertical direction, and the cutting edge 133 cuts the hair, the silk thread and the floccule crossing the avoiding notch 121 in the horizontal direction.

With such an arrangement, when the cutting edge 133 cuts hair, threads and floccules, only horizontal force is applied, so that the force applied to the cutting member 130 becomes single, thereby preventing the cutting edge 133 from being too complicated to cause the cutting member 130 to fall off.

In addition, when the cutting member 130 is connected to the highest position of the cavity wall of the installation cavity 1111, the cutting member 130 is located at the opening of the rolling brush 120 opposite to the installation cavity 1111, so that the cutting member 130 is completely hidden in the installation cavity 1111, and the cutting member 130 can be prevented from cutting the user.

Further, the end of the cutting element 130 extending into the avoiding notch 121 is provided with a hook 134 protruding the cutting edge 133, and the hook 134 can limit the hair, the silk thread and the floccule, so that the problem that the hair, the silk thread and the floccule slide along the surface of the cutting edge 133 when contacting the cutting edge 133 can be avoided, and the cutting element 130 can cut the hair, the silk thread and the floccule conveniently.

It should be noted that when the wire is a metal wire with high strength, the metal wire rotates with the roller brush 120 at a high speed and contacts the cutting edge 133, so as to generate a large impact force on the cutting edge 133, which easily causes the cutting element 130 to be broken, in some embodiments of the present invention, the first connecting side 131 of the cutting element 130 extends along the radial direction of the roller brush 120, and the distance between the second connecting side 132 and the first connecting side 131 gradually increases from the roller brush 120 to the wall of the mounting cavity 1111.

That is, the cutting elements 130 may be disposed in a triangular shape, the cutting elements 130 may also be disposed in a trapezoidal shape, and the cutting elements 130 may also be disposed in other shapes, and the shape of the cutting elements 130 is not particularly limited herein. This cutting member 130 adopts above-mentioned scheme design, is favorable to improving the holistic intensity of this cutting member 130, and then can guarantee the life of this cutting member 130.

Considering that a user easily contacts with the cutting member 130 when replacing the rolling brush 120, in order to avoid the cutting member 130 from cutting or scratching the user, in some embodiments of the present invention, the side surface of the cutting member 130 with a narrower width is further configured to be a circular arc surface, specifically, the cutting member 130 includes a third connecting side 135 connecting the first connecting side 131 and the second connecting side 132, the third connecting side 135 may be a linear type, the third connecting side 135 may be a circular arc type, the third connecting side 135 may also be other irregular shapes, which is not specifically limited herein, and the second connecting side 132 and the third connecting side 135 are both configured to be a circular arc surface, so that the sharp corner of the cutting member 130 except the cutting edge 133 can be eliminated, and the risk of the user being cut or scratched can be reduced.

It is worth noting that the avoiding notch 121 of the rolling brush 120 has a certain width in the axial direction of the rolling brush 120, when an object with a large volume is clamped at the avoiding notch 121, the object may damage the cutting member 130 when contacting the cutting member 130, and simultaneously may fall off from the rolling brush 120 under the action of the cutting member 130 to impact the cavity wall of the mounting cavity 1111, so as to cause the problem that the cavity wall of the mounting cavity 1111 is damaged.

In view of the above problems, in some embodiments of the present invention, referring to fig. 1 and fig. 3, the bottom of the housing 111 is further provided with a blocking rib 1112 crossing the opening of the mounting cavity 1111 in a direction perpendicular to the axis of the roller brush 120, and the middle of the blocking rib 1112 is located in the avoiding gap 121, so that a large object can be blocked from being caught in the avoiding gap 121, and in addition, a large object can be effectively blocked from being caught in the mounting, thereby causing a problem that the roller brush 120 is stuck.

Based on the above embodiments, it should be noted that the number of the cutting members 130 may be one, two, three or more, and the number of the cutting members 130 is related to not only the length of the rolling brush 120 along the axial direction thereof, but also the number of the cutting members 130 is related to the number of the relief notches 121 on the rolling brush 120.

Referring to fig. 3 and 6, the rolling brush 120 is provided with at least two avoidance gaps 121, and the at least two avoidance gaps 121 are arranged at intervals along the axial direction of the rolling brush 120; the number of the cutting members 130 is the same as the number of the avoiding notches 121, and each cutting member 130 is installed on the housing 111 and at least partially extends into the corresponding avoiding notch 121.

The cutting member 130 at each position can cut the hair, the silk thread and the floccules at the avoiding notch 121 at the corresponding position, so that the objects with longer length, such as the hair and the silk thread, can be cut into a plurality of sections, and the problem that the objects with longer length, such as the hair and the silk thread, are wound on one object to block the air flow is avoided.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A cleaning robot, characterized in that the cleaning robot comprises a machine body, a rolling brush and a cutting member; wherein the content of the first and second substances,

the bottom of the machine body is concavely provided with a mounting cavity;

the rolling brush is rotatably arranged in the mounting cavity, at least part of the rolling brush extends out of the opening of the mounting cavity, and an avoidance gap extending along the circumferential direction of the rolling brush is formed on the rolling brush;

the cutting piece is mounted on the machine body and at least partially extends into the avoidance gap to cut objects crossing the avoidance gap.

2. The cleaning robot of claim 1, wherein the cutting element is mounted within the mounting cavity.

3. The cleaning robot as claimed in claim 2, wherein the mounting cavity has a turning-in side for turning the roller brush from outside the mounting cavity into the mounting cavity and a turning-out side for turning the roller brush from inside the mounting cavity to outside the mounting cavity;

the cutting piece has first connection side and the second connection side that the direction that the side is close to each other or is kept away from each other in the side of turning into with the side of turning out sets up relatively, first connection side is close to the side of turning into sets up, the second connection side is close to the side of turning out sets up, first connection side is provided with the cutting edge.

4. A cleaning robot as set forth in claim 3, wherein the width of the cutting member in the axial direction of the roll brush is gradually reduced from the second connecting side toward the first connecting side so that the first connecting side of the cutting member forms the cutting edge.

5. A cleaning robot as claimed in claim 3, characterized in that the first connecting side is provided along a radial extension of the roller brush, and the cutting edge is provided along an extension direction of the first connecting side.

6. The cleaning robot as claimed in claim 5, wherein one end of the cutting member is connected to a highest point of a wall of the mounting cavity, and the other end of the cutting member extends into the avoidance gap, so that the cutting edge cuts the object crossing the avoidance gap in a horizontal direction.

7. The cleaning robot according to claim 5, wherein the first connecting side is provided to extend in a radial direction of the drum brush, and a distance between the first connecting side and the second connecting side is gradually increased from the drum brush toward a wall of the mounting chamber.

8. The cleaning robot as claimed in claim 3, wherein an end of the cutting member extending into the escape notch is provided with a hook portion protruding the cutting edge.

9. The cleaning robot of claim 4, wherein the cutting member further includes a third connecting side connecting the first connecting side and the second connecting side, the second connecting side and the third connecting side each being disposed in a circular arc.

10. The cleaning robot as claimed in claim 1, wherein the bottom of the robot body is further provided with a blocking rib crossing the opening of the mounting cavity in a direction perpendicular to the axis of the roller brush, and a middle portion of the blocking rib extends into the avoiding gap.

11. The cleaning robot according to any one of claims 1 to 10, wherein the rolling brush is provided with at least two avoidance gaps, the at least two avoidance gaps being arranged at intervals in an axial direction of the rolling brush; the number of the cutting pieces is the same as that of the avoidance gaps, and each cutting piece is installed on the machine body and at least partially extends into the corresponding avoidance gap.