Rolling brush assembly, cleaning head and surface cleaning apparatus

Abstract

Disclosed in the present invention are a rolling brush assembly, a cleaning head and a surface cleaning apparatus. The rolling brush assembly comprises a cleaning cloth, a rolling brush support and a mounting frame, wherein the cleaning cloth is configured to come into contact with a surface to be cleaned and clean same; the rolling brush support is configured to support the cleaning cloth; the rolling brush support has two opposing ends in the axial direction thereof; and the mounting frame is configured to mount the rolling brush support. The rolling brush support comprises a roller and a support plate arranged in front of the roller in a traveling direction, wherein the roller is rotatably mounted on the mounting frame, with one end of the roller being mounted onto the mounting frame and the other end being suspended; and one end of the support plate is fixedly mounted onto the mounting frame, and the other end is suspended. At least one upper rolling structure is mounted at the upper end of the support plate, and the upper rolling structure is in contact with the cleaning cloth and supports the cleaning cloth; and at least one lower rolling structure is mounted at the lower end of the support plate, and the lower rolling structure is in contact with the cleaning cloth and supports the cleaning cloth.

Description

Rolling brush assembly, cleaning head and surface cleaning device TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a rolling brush assembly, a cleaning head and a surface cleaning device. BACKGROUND

[0002] The surface cleaning device generally comprises a suction motor, which generates a suction airflow to recycle dirt into a recycling bin. In order to improve cleaning efficiency, the surface cleaning device generally adopts a cleaning head. The cleaning head is provided with a rolling brush assembly, which comprises a rolling brush for cleaning dust on the surface to be cleaned. The rotation of the rolling brush can sweep the dust adhered to the surface.

[0003] At present, the rolling brush is generally cylindrical. The cylindrical rolling brush structure is simpler and more stable in operation. However, since the rolling brush is cylindrical, there is a blind area that cannot be cleaned when cleaning the corner, and the user has to clean it in other ways. SUMMARY

[0004] In view of the above-mentioned deficiencies in the prior art, the present application provides a rolling brush assembly, a cleaning head and a surface cleaning device, which adopt a rolling brush assembly different from the prior art, and can effectively clean the corner.

[0005] In one aspect, the present application provides a rolling brush assembly, comprising

[0006] A cloth for contacting and cleaning the surface to be cleaned;

[0007] A rolling brush support for supporting the cloth; the rolling brush support has two opposite ends along the axial direction thereof;

[0008] A mounting frame for mounting the rolling brush support;

[0009] Wherein, the rolling brush support comprises a roller and a support plate arranged in front of the roller along the advancing direction; the roller is rotatably mounted on the mounting frame, one end of the roller is mounted to the mounting frame, and the other end is suspended; one end of the support plate is fixedly mounted to the mounting frame, and the other end is suspended;

[0010] The upper end of the support plate is provided with at least one upper rolling structure, which is in contact with and supports the cloth; the lower end of the support plate is provided with at least one lower rolling structure, which is in contact with and supports the cloth.

[0011] Optionally, a rotating structure is mounted on the support plate, which can be in contact with the roller, and the rotating structure rotates with the roller under the action of friction.

[0012] Optionally, the rotating structure is mounted to the support plate through a mounting bracket, the rotating structure is located between the support plate and the roller, and the mounting bracket is retractable relative to the support plate.

[0013] Optionally, an upper end of the support plate is provided with a plurality of upper rolling structures, and the plurality of upper rolling structures are arranged at intervals along an axial direction of the roller brush assembly; and / or

[0014] A lower end of the support plate is provided with a plurality of lower rolling structures, and the plurality of lower rolling structures are arranged at intervals along an axial direction of the roller brush assembly.

[0015] Optionally, the cleaning cloth comprises a base layer and a wiping layer arranged on a surface of the base layer; the roller drives the cleaning cloth to rotate through friction force generated between an outer surface of the roller and the base layer, and the base layer drives the upper rolling structures and the lower rolling structures to rotate through the friction force.

[0016] Optionally, 4-7 upper rolling structures are arranged at an upper end of the support plate, and 4-7 lower rolling structures are arranged at a lower end of the support plate.

[0017] Optionally, the roller is provided with at least one groove extending along a circumferential direction of the roller, an inner side of the cleaning cloth is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit axial movement of the cleaning cloth relative to the roller.

[0018] Optionally, both ends of the roller are provided with a boss structure extending in a radial direction, and the boss structure is used to block outward deviation of the cleaning cloth during rotation.

[0019] In another aspect, the present application further provides a cleaning head, comprising

[0020] a brush body, the brush body being provided with a driving motor,

[0021] and the roller brush assembly;

[0022] the roller defines a space for accommodating the driving motor, and the driving motor is configured to drive the roller to rotate.

[0023] In another aspect, the present application further provides a surface cleaning device, the surface cleaning device comprising the cleaning head.

[0024] The present application provides a rolling brush assembly, a cleaning head and a surface cleaning device. The rolling brush assembly comprises a cleaning cloth, a rolling brush support and a mounting frame. The cleaning cloth is used to contact and clean a surface to be cleaned. The rolling brush support is used to support the cleaning cloth. The rolling brush support has two opposite ends along its axial direction. The mounting frame is used to mount the rolling brush support. The rolling brush support comprises a roller and a support plate arranged in front of the roller along the advancing direction; the roller is rotatably mounted to the mounting frame, one end of the roller is mounted to the mounting frame and the other end of the roller is suspended; one end of the support plate is fixedly mounted to the mounting frame and the other end of the support plate is suspended. An upper rolling structure is mounted to the upper end of the support plate, the upper rolling structure is in contact with and supports the cleaning cloth; a lower rolling structure is mounted to the lower end of the support plate, the lower rolling structure is in contact with and supports the cleaning cloth. The rolling structure is mounted to the support plate, which can increase the tension of the cleaning cloth as much as possible under the condition of ensuring the normal rotation of the cleaning cloth, so that the cleaning cloth is in a relatively tight state, thereby improving the ability to clean the wall corner blind area. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a structural schematic diagram of a scrubber in an embodiment of the present application;

[0026] Fig. 2 is a structural schematic diagram of a sweeper in an embodiment of the present application;

[0027] Fig. 3 is an enlarged structural diagram of a cleaning head in an embodiment;

[0028] Fig. 4 is a sectional view of a rolling brush assembly in an embodiment along a direction perpendicular to the axial direction of the rolling brush assembly;

[0029] Fig. 5 is an enlarged structural diagram of region A in Fig. 4;

[0030] Fig. 6 is a structural schematic diagram of a cleaning head in another angle in an embodiment;

[0031] Fig. 7 is a structural schematic diagram of a rolling brush assembly in an embodiment;

[0032] Fig. 8 is a structural schematic diagram of a rolling brush support mounted to a mounting frame in an embodiment;

[0033] Fig. 9 is a structural schematic diagram of a rolling brush support mounted to a mounting frame in another angle in an embodiment;

[0034] Fig. 10 is a sectional view of a rolling brush assembly in an embodiment;

[0035] Fig. 11 is a structural schematic diagram of a cleaning head without a rolling brush assembly in an embodiment;

[0036] Fig. 12 is a structural schematic diagram of a cleaning head hiding a driving motor in an embodiment;

[0037] Fig. 13 is an enlarged structural diagram of region B in Fig. 12. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0039] It should be noted that if the embodiments of the present application involve directional indications, the directional indications are only used to explain the relative positional relationship and movement between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0040] In addition, if the embodiments of the present application involve descriptions such as “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the meaning of “and / or” appearing throughout the text includes three parallel solutions. For example, “A and / or B” includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connection” should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] Referring to FIGS. 1-13, the present application discloses a surface cleaning apparatus 100, which includes a cleaning head 1 for cleaning a surface to be cleaned. The cleaning head 1 is generally provided with a roller brush assembly 2, which can be mounted to a handheld vacuum cleaner, a floor washing machine (see FIG. 1) or a floor sweeping robot (see FIG. 2). The cleaning head 1 includes a floor brush body 11 and a roller brush assembly 2, and the floor brush body 11 is provided with a driving motor 12, and the roller 24 is defined with a space for accommodating the driving motor 12, and the driving motor 12 is configured to drive the roller 24 to rotate.

[0043] Referring to FIGS. 4-10, the roll brush assembly 2 includes a cleaning cloth 21, a roll brush support 22, and a mounting bracket 23. The cleaning cloth 21 is used to contact and clean the surface to be cleaned. The roll brush support 22 is used to support the cleaning cloth 21. The roll brush support 22 has opposite ends along its axial direction. The mounting bracket 23 is used to mount the roll brush support 22. The roll brush support 22 includes a roller 24 and a support plate 25 arranged in front of the roller 24 along the direction of travel. The roller 24 and the support plate 25 together support the cleaning cloth 21 into a D-shaped cross section, so that the corners of the wall can be effectively cleaned. In order to facilitate the replacement of the cleaning cloth 21, the roller 24 is rotatably mounted to the mounting bracket 23, one end of the roller 24 is mounted to the mounting bracket 23, and the other end is suspended. One end of the support plate 25 is fixedly mounted to the mounting bracket 23, and the other end is suspended. When the roll brush assembly 2 is mounted to the surface cleaning device 100, the roller 24 is first butted to the drive motor 12, and then the suspended end of the support plate 25 is limited with the butt joint structure on the cleaning head 1. Finally, the mounting bracket 23 is clamped to the cleaning head 1 through the clamping structure. The upper end of the support plate 25 is provided with at least one upper rolling structure 26, which is in contact with and supports the cleaning cloth 21. The lower end of the support plate 25 is provided with at least one lower rolling structure 27, which is in contact with and supports the cleaning cloth 21. The cleaning cloth 21 includes a base layer and a wiping layer arranged on the surface of the base layer; the roller 24 drives the cleaning cloth 21 to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure 26 and the lower rolling structure 27 to rotate through the friction force. Through the upper rolling structure 26 and the lower rolling structure 27, the smooth rotation of the cleaning cloth 21 around the support plate 25 can be effectively ensured. In this way, the mounting mode of the roller 24 and the support plate 25 cooperating can effectively reduce the cleaning blind area. The support plate 25 is generally in the shape of a long strip, which is arranged in front of the roller 24. The rotation of the roller 24 drives the cleaning cloth 21 to rotate, and after the cleaning cloth 21 is mounted to the support plate 25, the shape of the cleaning cloth 21 corresponding to the support plate 25 matches the front end of the support plate 25. The support plate 25 is arranged substantially perpendicular to the surface to be cleaned, which is equivalent to that the front and lower parts of the cleaning cloth 21 are substantially perpendicular, and the lower section 32 of the cleaning cloth 21 (the cleaning cloth 21 between the roller 24 and the support plate 25) is in contact with the surface to be cleaned, which can clean the surface to be cleaned. The front section 33 of the cleaning cloth 21 (i.e., the cleaning cloth 21 in front of the support plate 25) is substantially perpendicular to the surface to be cleaned due to the support plate 25, and can clean the skirting line when cleaning the corners of the wall. At this time, the lower section 32 and the front section 33 of the cleaning cloth 21 are substantially at a right angle. In this way, the corners of the wall can be effectively cleaned, and the cleaning efficiency is improved.

[0044] Since the brush holder 22 is suspended, and the length of the support plate 25 is relatively long, if it is used for a long time and is pressed by the cloth 21, the support plate 25 will be deformed towards the roller 24, especially the middle part of the support plate 25. In order to ensure that the cloth 21 is always in a normal working state during use and does not deform inwardly, a rotating structure 28 is installed on the support plate 25. The rotating structure 28 can be in contact with the roller 24, and the rotating structure 28 rotates with the roller 24 under the action of friction. The rotating structure 28 is arranged between the support plate 25 and the roller 24, and can support the support plate 25, so as to ensure that the cloth 21 is in a relatively appropriate degree of relaxation, thereby improving the cleaning efficiency.

[0045] Referring to FIGS. 8-10, the rotating structure 28 is installed on the support plate 25 through a mounting bracket 29. The rotating structure 28 is located between the support plate 25 and the roller 24, and the mounting bracket 29 is telescopic relative to the support plate 25. The mounting bracket 29 is arranged between the support plate 25 and the roller 24 in a telescopic manner. When the support plate 25 is close to the roller 24, it is convenient to disassemble and assemble the cloth 21.

[0046] In order to ensure that the cloth 21 can rotate with the roller 24, the upper end and the lower end of the support plate 25 are provided with rolling structures. The rolling structures can make the rotation of the cloth 21 more smooth. The smaller the diameter of the rolling structure is, the stronger the ability of the cloth 21 to clean the corners is.

[0047] However, the smaller the diameter of the rolling structure is, the longer the length is, and the more easily the rolling structure is deformed in the axial direction. If an elongated rolling structure is used, the rolling structure is easy to be deformed after being used for a period of time, which affects the cleaning efficiency. If the rolling structure is made of metal material, the cost will be relatively high, and the metal is easy to be corroded because the cloth 21 will contact with liquid. Therefore, in order to further prevent the rolling structure from being deformed and ensure that the front section 33 of the cloth 21 is effectively supported, a plurality of upper rolling structures 26 can be installed on the upper end of the support plate 25, and the plurality of upper rolling structures 26 are arranged in the axial direction of the brush assembly 2. The axial direction of the brush assembly is the length direction of the roller. In this way, since the length of each rolling structure is relatively short, the rolling structure is not easy to be deformed during use. Meanwhile, a plurality of lower rolling structures 27 can be installed on the lower end of the support plate 25, and the plurality of lower rolling structures 27 are arranged in the axial direction of the brush assembly 2, so as to ensure that the rolling structure is not easy to be deformed during use. Specifically, 4-7 upper rolling structures 26 are installed on the upper end of the support plate 25. 4-7 lower rolling structures 27 are installed on the lower end of the support plate 25. The upper rolling structures and the lower rolling structures can straighten the front section of the cloth as much as possible.

[0048] The cloth includes a base layer and a wiping layer arranged on the surface of the base layer. The roller drives the cloth to rotate through the friction force between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force. In order to prevent the cloth 21 from moving in the axial direction during operation, the roller 24 is provided with at least one groove 30 extending in the circumferential direction thereof, and the inner side of the cloth 21 is provided with a protruding structure corresponding to the groove 30, the protruding structure cooperates with the groove 30 to limit the axial movement of the cloth 21 relative to the roller 24.

[0049] The two ends of the roller 24 are provided with a boss structure 31 extending in the radial direction, which is used to block the cloth 21 from moving outward during rotation.

[0050] The cleaning head 1 further includes a scraping strip 15, the upper side of the scraping strip 15 is provided with a liquid outlet hole 16, the scraping strip 15 is pivotally installed on the cleaning head 1, along the rotation direction of the roller brush, the scraping strip 15 includes a comb tooth end 17 and a pivot end 18, the pivot end 18 is pivotally installed below the liquid outlet hole 16, the comb tooth end 17 can rotate around the pivot end 18, and a resilient device 34 is installed between the scraping strip 15 and the cleaning head 1, which is used to apply a force to the scraping strip 15 towards the roller brush assembly 2.

[0051] When the above cleaning head 1 is installed on a stand-type vacuum cleaner or a scrubber, the cleaning head 1 is generally pivotally connected with the main body. Since the roller brush assembly 2 is different from the common roller brush, especially the contact surface with the surface to be cleaned, the contact surface of the roller brush assembly 2 in the application is relatively large, and the steering is a little stiff during the forward pushing and backward pulling. Therefore, the large roller wheel used in the common cleaning head 1 in only one direction is cancelled in the application, and two universal wheels 13 are arranged instead. By using the universal wheels 13, the user can operate the cleaning head 1 more easily. The rear of the universal wheel 13 is further provided with two small wheels 14, and the two small wheels 14 do not contact the ground when the roller brush assembly 2 contacts the surface to be cleaned. When the cleaning head 1 rotates with the universal wheel 13 as the fulcrum, the roller brush assembly 2 leaves the surface to be cleaned, and the cleaning head 1 is supported by the universal wheel 13 and the small wheel 14, at this time, the user can drag the entire surface cleaning device 100 to walk on the ground.

[0052] Although the embodiments of the present application have been disclosed as above, they are not limited to the application listed in the specification and the embodiments, and can be fully applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art, and therefore the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A roll brush assembly, characterized by, The mop is used to contact and clean the surface to be cleaned. The roll brush support has two opposite ends along its axial direction. The mounting frame is used to mount the roll brush support. The roll brush support includes a roller and a support plate arranged in front of the roller along the advancing direction. One end of the roller is mounted to the mounting frame, and the other end is suspended. One end of the support plate is fixedly mounted to the mounting frame, and the other end is suspended. The upper end of the support plate is provided with at least one upper rolling structure which is in contact with and supports the mop.

2. The roll brush assembly of claim 1, wherein The support plate is provided with a rotating structure which can be in contact with the roller and rotates with the roller under the action of friction.

3. The roll brush assembly of claim 2, wherein The rotating structure is mounted to the support plate through a mounting bracket, and the rotating structure is located between the support plate and the roller.

4. The roll brush assembly of any one of claims 1-3, wherein The upper end of the support plate is provided with a plurality of upper rolling structures which are arranged at intervals along the axial direction of the roll brush assembly; and / or The lower end of the support plate is provided with a plurality of lower rolling structures which are arranged at intervals along the axial direction of the roll brush assembly.

5. The roll brush assembly of any one of claims 1-3, wherein The mop includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the mop to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.

6. The roll brush assembly of claim 4, wherein The upper end of the support plate is provided with 4-7 upper rolling structures; and the lower end of the support plate is provided with 4-7 lower rolling structures.

7. The roll brush assembly of any one of claims 1-3, wherein The roller is provided with at least one groove extending along the circumferential direction thereof, and the inner side of the mop is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit the axial movement of the mop relative to the roller.

8. The roll brush assembly of any one of claims 1-3, wherein Both ends of the roller are provided with a boss structure extending in the radial direction, and the boss structure is used to block the outward deviation of the mop during rotation.

9. A cleaning head characterized by, The mop is used to contact and clean the surface to be cleaned. The roll brush support has two opposite ends along its axial direction. The mounting frame is used to mount the roll brush support. The roll brush support includes a roller and a support plate arranged in front of the roller along the advancing direction. One end of the roller is mounted to the mounting frame, and the other end is suspended. One end of the support plate is fixedly mounted to the mounting frame, and the other end is suspended. The upper end of the support plate is provided with at least one upper rolling structure which is in contact with and supports the mop.

2. The roll brush assembly of claim 1, wherein The support plate is provided with a rotating structure which can be in contact with the roller and rotates with the roller under the action of friction.

3. The roll brush assembly of claim 2, wherein The rotating structure is mounted to the support plate through a mounting bracket, and the rotating structure is located between the support plate and the roller.

4. The roll brush assembly of any one of claims 1-3, wherein The upper end of the support plate is provided with a plurality of upper rolling structures which are arranged at intervals along the axial direction of the roll brush assembly; and / or The lower end of the support plate is provided with a plurality of lower rolling structures which are arranged at intervals along the axial direction of the roll brush assembly.

5. The roll brush assembly of any one of claims 1-3, wherein The mop includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the mop to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.

6. The roll brush assembly of claim 4, wherein The upper end of the support plate is provided with 4-7 upper rolling structures; and the lower end of the support plate is provided with 4-7 lower rolling structures.

7. The roll brush assembly of any one of claims 1-3, wherein The roller is provided with at least one groove extending along the circumferential direction thereof, and the inner side of the mop is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit the axial movement of the mop relative to the roller.

8. The roll brush assembly of any one of claims 1-3, wherein Both ends of the roller are provided with a boss structure extending in the radial direction, and the boss structure is used to block the outward deviation of the mop during rotation. The mop is used to contact and clean the surface to be cleaned. The roll brush support has two opposite ends along its axial direction. The mounting frame is used to mount the roll brush support. The roll brush support includes a roller and a support plate arranged in front of the roller along the advancing direction. One end of the roller is mounted to the mounting frame, and the other end is suspended. One end of the support plate is fixedly mounted to the mounting frame, and the other end is suspended. The upper end of the support plate is provided with at least one upper rolling structure which is in contact with and supports the mop.

2. The roll brush assembly of claim 1, wherein The support plate is provided with a rotating structure which can be in contact with the roller and rotates with the roller under the action of friction.

3. The roll brush assembly of claim 2, wherein The rotating structure is mounted to the support plate through a mounting bracket, and the rotating structure is located between the support plate and the roller.

4. The roll brush assembly of any one of claims 1-3, wherein The upper end of the support plate is provided with a plurality of upper rolling structures which are arranged at intervals along the axial direction of the roll brush assembly; and / or The lower end of the support plate is provided with a plurality of lower rolling structures which are arranged at intervals along the axial direction of the roll brush assembly.

5. The roll brush assembly of any one of claims 1-3, wherein The mop includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the mop to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.

6. The roll brush assembly of claim 4, wherein The upper end of the support plate is provided with 4-7 upper rolling structures; and the lower end of the support plate is provided with 4-7 lower rolling structures.

7. The roll brush assembly of any one of claims 1-3, wherein The roller is provided with at least one groove extending along the circumferential direction thereof, and the inner side of the mop is provided with a protruding structure corresponding to the groove, and the protruding structure cooperates with the groove to limit the axial movement of the mop relative to the roller.

8. The roll brush assembly of any one of claims 1-3, wherein Both ends of the roller are provided with a boss structure extending in the radial direction, and the boss structure is used to block the outward deviation of the mop during rotation. The mop is used to contact and clean the surface to be cleaned. The roll brush support has two opposite ends along its axial direction. The mounting frame is used to mount the roll brush support. The roll brush support includes a roller and a support plate arranged in front of the roller along the advancing direction. One end of the roller is mounted to the mounting frame, and the other end is suspended. One end of the support plate is fixedly mounted to the mounting frame, and the other end is suspended. The upper end of the support plate is provided with at least one upper rolling structure which is in contact with and supports the mop.

2. The roll brush assembly of claim 1, wherein The support plate is provided with a rotating structure which can be in contact with the roller and rotates with the roller under the action of friction.

3. The roll brush assembly of claim 2, wherein The rotating structure is mounted to the support plate through a mounting bracket, and the rotating structure is located between the support plate and the roller.

4. The roll brush assembly of any one of claims 1-3, wherein The upper end of the support plate is provided with a plurality of upper rolling structures which are arranged at intervals along the axial direction of the roll brush assembly; and / or The lower end of the support plate is provided with a plurality of lower rolling structures which are arranged at intervals along the axial direction of the roll brush assembly.

5. The roll brush assembly of any one of claims 1-3, wherein The mop includes a base layer and a wiping layer arranged on the surface of the base layer; the roller drives the mop to rotate through the friction force generated between the outer surface and the base layer, and the base layer drives the upper rolling structure and the lower rolling structure to rotate through the friction force.

6. The roll brush assembly of claim 4, wherein The upper end of the support plate 10. A surface cleaning apparatus characterized by, The surface cleaning apparatus includes the cleaning head of claim 9.

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