Side brush assembly and cleaning equipment

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to a side brush assembly and cleaning equipment. The side brush assembly comprises a base and a side brush part, the base is provided with a mounting hole used for being connected with a driving shaft, the side brush part is connected to the base and comprises bristles, a blocking part is arranged on the side brush part, and the projection of the blocking part in the horizontal direction partially coincides with the projection of the bristles in the horizontal direction. And the hair wound on the side brush piece is prevented from entering the base along the direction of the side brush piece. Hair wound on the side brush piece can be prevented from entering the base in the direction of the side brush piece, and then the technical problem that a transmission shaft on cleaning equipment connected with the base is wound by the hair and stops rotating can be prevented, so that the cleaning effect is prevented from being affected, and the cleaning equipment can be normally used.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrical equipment, and particularly relates to a side brush assembly and a cleaning device. BACKGROUND

[0002] In related technologies, a cleaning device such as a sweeping robot usually includes a side brush assembly. However, during the operation of the cleaning device, flexible garbage such as hair and thread on the ground is easy to be wound on the side brush, which not only affects the cleaning effect, but also affects the normal use of the cleaning device and the user experience. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a side brush assembly and a cleaning device, which aims to at least partly solve the problem that flexible garbage is easy to be wound on the side brush, which not only affects the cleaning effect, but also affects the normal use of the cleaning device and the user experience.

[0004] In the first aspect of the present application, a side brush assembly is provided, which comprises:

[0005] a base provided with a mounting hole for connecting with a driving shaft

[0006] a side brush piece connected to the base, the side brush piece comprising bristles, and the side brush piece being provided with a blocking part, a projection of the blocking part in a horizontal direction partially coinciding with a projection of the bristles in the horizontal direction.

[0007] The side brush assembly provided by the present application is provided with a blocking part on the side brush piece, and the projection of the blocking part in the horizontal direction partially coincides with the projection of the bristles in the horizontal direction, that is, the blocking part protrudes from the periphery of the bristles. During the rotation of the side brush assembly, if flexible garbage such as hair and thread is wound on the side brush, the blocking part can prevent the hair wound on the side brush piece from entering the base, thereby preventing the transmission shaft of the cleaning device connected to the base from being wound by the flexible garbage such as hair and thread, so as to avoid affecting the cleaning effect, make the cleaning device work normally, and improve the user experience.

[0008] In some embodiments, the side brush piece comprises a side brush arm, one end of the side brush arm being connected to the base and the other end extending away from the base, and the blocking part being arranged on the side brush arm, and the bristles being connected to the other end of the side brush arm and extending away from the side brush arm.

[0009] In some embodiments, the blocking part comprises a blocking protrusion arranged on the side brush arm.

[0010] In some embodiments, the blocking part further comprises a recess, and the opening side of the recess faces the bristles.

[0011] In some embodiments, the opening side of the recess has an included angle greater than or equal to 90°.

[0012] In some embodiments, the blocking protrusion is arranged close to the other end of the bristle arm.

[0013] In some embodiments, the blocking protrusion is arranged at the bottom of the bristle arm.

[0014] In some embodiments, the bottom of the bristle arm is provided with a first slope, the low end of the first slope is connected to the side of the blocking protrusion facing the bristles, and the high end of the first slope extends to the other end of the bristle arm; or / and, the side of the blocking protrusion facing the bristles is provided with a second slope, the high end of the second slope is connected to the bottom of the bristle arm, and the low end of the second slope extends away from the bristles.

[0015] In some embodiments, the bristles are connected to the blocking protrusion and extend obliquely downward.

[0016] In some embodiments, the bristles have an inclination angle of 40°-60°; or / and the length of the bristles is within 20-60 mm.

[0017] In some embodiments, the bristle arm comprises a plurality of arm segments, and the thicknesses of at least two of the arm segments are different.

[0018] In some embodiments, the thicknesses of the plurality of arm segments gradually decrease in the direction away from the base.

[0019] In some embodiments, the thickness of at least part of the bristle arm gradually decreases in the direction away from the base.

[0020] In some embodiments, the plurality of bristle members are provided, and the projections of the bristle arms of the plurality of bristle members in the horizontal direction form involutes. If hair accumulates on the blocking portion, the hair accumulated on the blocking portion will be thrown off from the bristle member due to the centrifugal force during the rotation of the bristle assembly, so as to achieve the self-cleaning effect of the bristle.

[0021] In some embodiments, the projections of the bristle arms of the plurality of bristle members in the horizontal direction form spirals.

[0022] In some embodiments, the bristles and the bristle arms connected thereto are tangent to the plane on which the base is located.

[0023] In the second aspect of the present application, the present application also provides a cleaning device, comprising: a mobile host; and the above bristle assembly, which is assembled on the mobile host.

[0024] The cleaning device provided by the application can prevent the transmission shaft of the cleaning device connected with the base from being wound by hair and causing stop rotation, so as to avoid affecting the cleaning effect, make the cleaning device normally used, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0026] Figure 1 The structural schematic diagram of the edge brush assembly in one or more embodiments of the application is shown;

[0027] Figure 2 The structural schematic diagram of another view of Figure 1 is shown;

[0028] Figure 3 The front view schematic diagram of Figure 1 is shown;

[0029] Figure 4 The top view schematic diagram of Figure 1 is shown;

[0030] Figure 5 The working state schematic diagram of the edge brush assembly shown in Figure 1 is shown.

[0031] Explanation of reference signs:

[0032] Base-1, mounting hole-11;

[0033] Edge brush-2, edge brush arm-21, first arm body-211, second arm body-212, third arm body-213, brush-22;

[0034] Blocking part-3, recess-31, first inclined surface-311, second inclined surface-312;

[0035] Annular structure-4;

[0036] Spherical structure-5, positioning hole-51;

[0037] Blocking protrusion-6. DETAILED DESCRIPTION

[0038] In order for those skilled in the art to which the present application pertains to more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0039] When the cleaning device such as a sweeping robot works, the garbage swept is sucked into the built-in dust collection channel through the dust suction port, and finally collected by the dust collection box. Since the dust suction port is difficult to cover the bottom of the main body of the sweeping robot, when the sweeping robot is close to the wall to walk and clean or close to other obstacles to clean, there will be a blind area of cleaning between the edge of the sweeping robot and the wall. In order to solve this problem, the sweeping robot will be equipped with a side brush assembly to assist the main brush assembly located at the dust suction port to clean, mainly to sweep and push the dirt close to the wall or other obstacles to the cleaning range of the main brush assembly, so that it is sucked into the dust suction port, and also can improve the cleaning efficiency of the sweeping robot to a certain extent.

[0040] In the related art, during the working process of the cleaning device, the flexible garbage such as hair and thread on the ground is easy to be entangled on the side brush, which not only affects the cleaning effect, but also affects the normal use of the sweeping cleaning device. During daily maintenance, the hair on the side brush is also difficult to clean, which affects the user experience.

[0041] Based on the above technical problems, the present application provides a side brush assembly and a cleaning device, which aims to at least reduce or even avoid the phenomenon that the flexible garbage is entangled on the side brush, to improve the cleaning effect and make the cleaning device work normally, and to easily clean the side brush to improve the user experience.

[0042] Figure 1 A structural schematic view of a side brush assembly in one or more embodiments of the present application is shown, Figure 2 A structural schematic view of another view of Figure 1 is shown. In combination with Figure 1 and Figure 2 , the side brush assembly provided by the present application comprises a base 1 and a side brush piece 2, the side brush piece 2 is connected to the base 1, the side brush piece 2 comprises bristles 22, and the side brush piece 2 is provided with a blocking part 3, a projection of the blocking part 3 on the base 1 partially overlaps a projection of the bristles 22 on the base 1, so as to block the hair entangled on the side brush piece 2 from entering the base 1 along the direction of the side brush piece 2.

[0043] The edge brush assembly provided by the application, since the blocking part 3 is arranged on the edge brush piece 2, the projection of the blocking part 3 on the base 1 partially coincides with the projection of the bristles 22 on the base 1, that is, the blocking part 3 protrudes from the periphery of the bristles 22, during the rotating work of the edge brush assembly, if the flexible garbage such as hair and thread is wound on a certain edge brush, since the blocking part 3 is arranged, the hair wound on the edge brush piece 2 can be blocked from entering the base 1 along the direction of the edge brush piece 2, and then the problem that the transmission shaft on the cleaning equipment connected with the base 1 is wound by the flexible garbage such as hair and thread to stop rotating can be prevented, so as to avoid affecting the cleaning effect and enable the cleaning equipment to be normally used, thereby improving the user experience.

[0044] In combination Figure 1 In some embodiments, the base 1 is used to be connected with the driving shaft of the driving motor on the cleaning equipment, wherein the middle part is provided with a mounting hole 11, the driving shaft of the driving motor on the cleaning equipment is fixedly assembled in the mounting hole 11 of the base 1, and the base 1 of the edge brush assembly and the driving shaft of the driving motor rotate synchronously, so as to realize the rotation of the edge brush assembly.

[0045] In combination Figure 1 In some embodiments, the mounting hole 11 can be a regular polygon, and correspondingly, the part where the driving shaft of the driving motor is assembled in the mounting hole 11 can also be a regular polygon, so that the two are relatively fixed and the relative rotation between the two is prevented. In other embodiments, the mounting hole 11 can also be a non-circular structure such as a trapezoidal shape or an oval shape, and the part where the driving shaft of the driving motor is assembled in the mounting hole 11 can be designed adaptively.

[0046] It should be noted that the base 1 can also be directly fixedly connected with the driving shaft of the driving motor, for example, by using a key connection, bolt locking or the like, which is not limited herein.

[0047] Figure 3 A front view schematic diagram is shown. Figure 1 In combination Figures 1-3 In some embodiments, since the base 1 is used to be connected with the driving shaft of the driving motor on the cleaning equipment, it needs to have a certain use strength, therefore, in the embodiments of the application, a ring structure 4 can be arranged on the top of the base 1, and a spherical structure 5 can be arranged on the bottom, so as to strengthen the structure of the base 1.

[0048] In some embodiments, the ring structure 4 and the spherical structure 5 can be integrally formed with the base 1, wherein the ring structure 4 can be concentrically or eccentrically arranged on the outside of the driving hole, the spherical structure 5 is provided with a circular positioning hole 51, and the head of the driving shaft of the driving motor can be arranged in the positioning hole 51 of the spherical structure 5.

[0049] It should be noted that other shaped reinforcing structures can also be arranged on the top and / or bottom of the base 1, which is not limited herein.

[0050] In combination Figures 1-3 In some embodiments, three edge brush members 2 can be provided, and the three edge brush members 2 can be arranged equidistantly on the peripheral surface of the base 1 to ensure that the edge brush assembly has sufficient cleaning coverage. In other embodiments, one, two, four, or five edge brush members 2 can be provided, and in the case of two or more edge brush members 2, the edge brush members 2 can be arranged non-equidistantly on the peripheral surface of the base 1, which is not limited herein.

[0051] In combination Figures 1-3 In some embodiments, the edge brush member 2 can include an edge brush arm 21 and bristles 22, wherein one end of the edge brush arm 21 is connected to the base 1, the other end of the edge brush arm 21 extends away from the base 1, and the bristles 22 are connected to the other end of the edge brush arm 21 and extend away from the edge brush arm 21. The bristles 22 can be defined as the cleaning end of the edge brush member 2, and the above-mentioned blocking portion 3 is provided on the edge brush arm 21.

[0052] In combination Figures 1-3 In some embodiments, the edge brush arm 21 can be provided with a blocking protrusion 6, which is part of the above-mentioned blocking portion 3.

[0053] In combination Figures 1-3 In some embodiments, the blocking portion 3 can include a recess 31, and the opening side of the recess 31 faces the bristles. If the flexible garbage such as hair or thread is wound on the edge brush member 2, it will be accumulated in the recess 31 of the blocking portion 3. The recess 31 can limit the movement path of the flexible garbage such as hair or thread to some extent, further preventing the hair from moving from the edge brush member 2 to other positions, such as moving to the base 1, or moving to the components adjacent to the edge brush member 2 on the cleaning device, to avoid abnormal operation of the cleaning device.

[0054] In some embodiments, the opening side of the recess 31 has an included angle greater than or equal to 90°, so that the blocking portion 3 has a large enough accommodation space to block the flexible garbage such as hair or thread on the edge brush member 2 from entering the base 1 along the direction of the edge brush member 2.

[0055] In other embodiments, the opening side of the recess 31 can also form an acute angle, which can also block the flexible garbage such as hair or thread on the edge brush member 2 from entering the base 1 along the direction of the edge brush member 2.

[0056] In combination Figure 3In the embodiment, the blocking protrusion 6 can be arranged at the other end of the bristle arm 21 to extend the distance between the hair and the base 1 to some extent, so as to avoid the hair protruding from the blocking part 3 from contacting the base 1 and being rolled into the base 1. In addition, the blocking protrusion 6 is preferably arranged at the bottom of the bristle arm, and the bottom of the bristle arm 21 can be provided with a first inclined surface 311, the low end of the first inclined surface 311 being connected to the side of the blocking protrusion 6 facing the bristles 22, and the high end of the first inclined surface 311 extending to the other end of the bristle arm 21, that is, the first inclined surface 311 is arranged in a slanting upward manner, and the side of the blocking protrusion 6 facing the bristles 22 is provided with a second inclined surface 312, the high end of the second inclined surface 312 being connected to the bottom of the bristle arm 21, and the low end of the second inclined surface 312 extending away from the bristles 22, that is, the second inclined surface 312 is arranged in a slanting downward manner, and the bottom end of the first inclined surface 311 and the top end of the second inclined surface 312 intersect to form two side portions of the recess 31, and the first inclined surface 311 and the second inclined surface 312 form two side walls of the recess 31, and the included angle between the first inclined surface 311 and the second inclined surface 312 forms the included angle of the opening side of the recess 31.

[0057] In other embodiments, only the first inclined surface 311 or only the second inclined surface 312 can be arranged to achieve the technical effect that the included angle between the bottom of the other end of the bristle arm 21 and the side of the blocking protrusion 6 facing the bristles 22 is greater than or equal to 90°, which will not be described herein.

[0058] It should be noted that the blocking part 3 can also be arranged at the middle of the bristle arm 21 or at the top of the bristle arm 21, for example, a circumferential protrusion extending outward is arranged on the circumferential surface of the middle of the bristle arm 21, which can be configured as the blocking part 3, and this is not limited herein.

[0059] In combination Figure 3 In some embodiments, the bristle arm 21 can include a plurality of arm bodies, and the thicknesses of at least two of the plurality of arm bodies are different, so that the bristle arm 21 has a certain deformation ability. This is because the bristle arm 21 is usually made of soft rubber material, and the cleaning end of the bristle piece 2 contacts the ground to deform, but the bristle arm 21 needs to maintain a certain connection and use strength. Therefore, the bristle arm 21 can be divided into a plurality of arm bodies, and the thicknesses of at least two of the plurality of arm bodies are different to meet the above requirements.

[0060] In combination Figure 3 The thicknesses of the plurality of arm bodies can gradually decrease in the direction away from the base 1, and in addition, the thicknesses of at least part of the middle of the bristle arm 21 gradually decrease in the direction away from the base 1, so that the strength of the part decreases and the elasticity increases.

[0061] In combination Figure 3In specific implementation, the side brush arm 21 may include three arm sections: a first arm 211 connected to the base 1, a third arm 213 connected to the bristles 22, and a second arm 212 connecting the first arm 211 and the third arm 213. The first arm 211 is thicker to provide sufficient strength for connection. The second arm 212 has a gradually decreasing thickness from thick to thin, with its strength gradually decreasing and its elasticity gradually increasing, serving as the starting point for deformation when the side brush assembly rotates. The third arm 213 is thinner to provide sufficient elasticity to accommodate the deformation caused by the contact between the cleaning end of the side brush 2 and the cleaned surface.

[0062] In some embodiments, the multiple arm segments constituting the side brush arm 21 can be integrally formed. Since the side brush arm 21 is made of soft rubber and the base 1 is made of hard rubber, the side brush arm 21 can be formed on the circumferential surface of the base 1 by secondary injection molding. In other embodiments, the side brush arm 21 can also be connected to the circumferential surface of the base 1 by means of plug-in or other methods, which is not limited here.

[0063] Combination Figure 2 In some embodiments, the bristles 22 are connected to the blocking protrusion 6 and extend obliquely downward. Additionally, the bristles 22 can have an angle of 40°-60°, meaning the bristles 22 can have an angle of 40°-60° in the horizontal direction. This ensures that the cleaning coverage of the side brush assembly meets requirements while effectively preventing hair entanglement. For example, the angle of the bristles 22 can be 40°, 60°, or 45°; there is no limitation on this.

[0064] In addition, in some embodiments, in order to achieve better cleaning results, the length of the bristles 22 needs to be set. The length of the bristles 22 can be between 20 mm and 60 mm to ensure that the cleaning coverage of the side brush assembly meets the requirements and has a good effect of preventing hair tangling. For example, the length of the bristles 22 can be 20 mm, 40 mm or 60 mm, and there is no limitation here.

[0065] Figure 4 It shows Figure 1 A top-down view diagram, combined with Figure 4In some embodiments, the projection of the bristle arms 21 of the plurality of bristle pieces 2 in the horizontal direction can be a involute, and when the bristle assembly is rotating, if there is hair on the bristle piece 2, a centrifugal force will be generated on the hair, and the hair will be thrown out under the action of the centrifugal force, thereby preventing the hair from being entangled on the bristle piece 2 to a certain extent. If the hair on the bristle piece 2 is not thrown out, due to the presence of the blocking part 3 on the bristle piece 2, the hair entangled on the bristle piece 2 can be prevented from entering the base 1 along the direction of the bristle piece 2, thereby preventing the transmission shaft of the cleaning device connected to the base 1 from being entangled by the hair and causing the device to stop rotating, so as to avoid affecting the cleaning effect and enable the cleaning device to be used normally.

[0066] In some embodiments, the bristle arms 21 of the plurality of bristle pieces 2 can be arranged in a spiral shape, so that the hair is thrown out from the bristle piece 2 under the action of the centrifugal force, thereby preventing the hair from being entangled on the bristle piece 2.

[0067] Figure 5 The working state of the bristle assembly is shown Figure 1 The working state of the bristle assembly is shown Figure 5 Under the condition that the bristle assembly provided by the present application rotates in the counterclockwise direction, the hair, thread and other flexible garbage entangled on the bristles 22 will generate a centrifugal force in the clockwise direction, and the hair, thread and other flexible garbage on the bristles 22 will be thrown out under the action of the centrifugal force, thereby automatically separating from the bristles 22, thereby preventing the hair, thread and other flexible garbage from being entangled on the bristle piece 2 to a certain extent. If the hair on the bristle piece 2 is not thrown out, due to the presence of the blocking part 3 on the bristle piece 2, the hair will accumulate on the blocking part 3, and since the centrifugal force of an object is proportional to its mass, when the hair, thread and other flexible garbage accumulate to a certain mass, the bristle assembly will rotate at an increased speed along the wall, and the flexible garbage accumulated to a certain mass will generate a centrifugal force large enough to throw out the hair, thread and other flexible garbage, so that the hair automatically separates, thereby avoiding affecting the normal operation of the device and ensuring the cleaning effect. At the same time, it also avoids the user manually cleaning the hair, thereby improving the user experience.

[0068] In some embodiments, the bristles 22 and the connected bristle arms 21 can be tangentially arranged in the plane of the base 1, so as to ensure that during the operation of the bristle assembly, the bristles 22 can deform sufficiently with the ground to throw out the hair, thread and other flexible garbage on the bristles 22.

[0069] It should be noted that if there is an extremely adverse situation, the hair, thread and other flexible garbage cannot be brushed out of the bristles 22 and accumulate on the blocking part 3. When cleaning the hair, the user can quickly and conveniently clean the flexible garbage accumulated on the blocking part 3 at one time, thereby improving the user experience.

[0070] In the second aspect of the present application, the present application further provides a cleaning device, comprising: a mobile host; and the side brush assembly assembled on the mobile host.

[0071] The cleaning device provided by the present application can prevent the transmission shaft of the cleaning device connected with the base 1 from being wound by hair and thus being stopped, so as to avoid affecting the cleaning effect and enable the cleaning device to be normally used. In addition, during the rotation of the side brush assembly, the hair accumulated on the blocking part 3 can be thrown off from the side brush piece 2 due to the centrifugal force, so as to achieve the technical effect of self-cleaning. Moreover, when the hair is cleaned, the user can quickly clean the hair accumulated on the blocking part 3 at one time, so as to improve the user experience.

[0072] In some embodiments, the cleaning device can be a sweeping robot, or can be other cleaning devices with a side brush assembly, which is not limited herein.

[0073] The cleaning device provided by the present application comprises the side brush assembly of any of the above technical solutions, and thus has all the beneficial effects of the side brush assembly of the above technical solutions.

[0074] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0075] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0076] In the present application, unless specifically defined otherwise, the terms "connected", "fixed", and the like should be construed broadly and do not necessarily denote direct connections, but can also include indirect connections or connections through intermediaries. They can also include fixed connections, detachable connections, or integrations. They can be mechanical connections, or electrical connections. They can be direct connections, or indirect connections through intermediaries. They can be internal connections of two elements, or interaction relationships between two elements. The specific meanings of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

[0077] In addition, the descriptions such as "first", "second", and the like in the present application are only for the purpose of description, and should not be understood as indicating or implying the relative importance of the technical features indicated, or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless specifically and specifically limited.

[0078] In addition, the descriptions such as "first", "second", and the like in the present application are only for the purpose of description, and should not be understood as indicating or implying the relative importance of the technical features indicated, or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless specifically and specifically limited.

[0079] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements, and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A side brush assembly, characterized in that, The edge brush assembly comprises: a base provided with a mounting hole for connecting with a driving shaft; an edge brush piece connected to the base, the edge brush piece comprising bristles, the edge brush piece being provided with a blocking portion, a projection of the blocking portion in a horizontal direction partially overlapping a projection of the bristles in the horizontal direction, so as to block hair wound on the edge brush piece from entering the base along the direction of the edge brush piece; the edge brush piece comprises: an edge brush arm, one end of the edge brush arm being connected to the base and the other end of the edge brush arm extending away from the base, the blocking portion being provided on the edge brush arm, and the bristles being connected to the other end of the edge brush arm and extending away from the edge brush arm; the blocking portion comprises a blocking protrusion provided on the edge brush arm; the blocking protrusion is provided at the bottom of the edge brush arm.

2. The edge brush assembly of claim 1, wherein, The blocking portion further comprises a recess, an opening side of the recess facing the bristles.

3. The edge brush assembly of claim 2, wherein, The opening side of the recess has an included angle greater than or equal to 90°.

4. The edge brush assembly of any one of claims 1-3, wherein, The blocking protrusion is close to the other end of the edge brush arm.

5. The edge brush assembly of any one of claims 1-3, wherein, The bottom of the edge brush arm is provided with a first inclined surface, a low end of the first inclined surface being connected to a side of the blocking protrusion facing the bristles, and a high end of the first inclined surface extending to the other end of the edge brush arm; or / and, a second inclined surface is provided on the side of the blocking protrusion facing the bristles, a high end of the second inclined surface being connected to the bottom of the edge brush arm, and a low end of the second inclined surface extending away from the bristles.

6. The edge brush assembly of any one of claims 1-3, wherein, The bristles are connected to the blocking protrusion and extend obliquely downward.

7. The edge brush assembly of any one of claims 1-3, wherein, The bristles have an inclination angle of 40°-60°; or / and the length of the bristles is within 20-60 mm.

8. The edge brush assembly of any one of claims 1-3, wherein, The edge brush arm comprises a plurality of arm bodies, and the thicknesses of at least two of the plurality of arm bodies are different.

9. The edge brush assembly of claim 8, wherein, The thicknesses of the plurality of arm bodies gradually decrease in the direction away from the base.

10. The edge brush assembly of claim 9, wherein, At least part of the edge brush arm has a thickness gradually decreasing in the direction away from the base.

11. The edge brush assembly of any one of claims 1-3, wherein, The edge brush piece is a plurality of, and the projections of the edge brush arms of the plurality of edge brush pieces in the horizontal direction form an involute.

12. The edge brush assembly of claim 11, wherein, The projections of the edge brush arms of the plurality of edge brush pieces in the horizontal direction form a spiral shape.

13. The edge brush assembly of claim 11, wherein, The bristles and the edge brush arm connected thereto are tangent to the plane on which the base is located.

14. A cleaning apparatus, characterized by The cleaning device comprises: a mobile host; the edge brush assembly of any one of claims 1-13 is assembled on the mobile host.

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