Rolling brush assembly for dust collector and dust collector with rolling brush assembly

By designing a differential speed roller brush assembly in the vacuum cleaner, and utilizing the cooperation of the drive mechanism and the ring-shaped rotating plate, the problem of hair entanglement is solved, achieving efficient cleaning of long hair and improving the user experience.

CN224220054UActive Publication Date: 2026-05-12NINGBO BORINE ELECTRIC APPLIANCE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO BORINE ELECTRIC APPLIANCE CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

When cleaning long hair, existing vacuum cleaners often have hair that gets tangled in the brush, making cleaning difficult and affecting usability and user experience.

Method used

Design a roller brush assembly, including a first roller brush and a second roller brush. The first roller brush and the rolling shaft are driven to rotate by a drive mechanism. The second roller brush and the rolling shaft form a differential speed. The hair is scraped to the suction port without getting tangled. Combined with the annular rotating shaft plate driving the second roller brush to rotate, the hair is directly sucked away.

Benefits of technology

It achieves simple and efficient hair removal, improving cleaning efficiency without affecting usability and user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224220054U_ABST
    Figure CN224220054U_ABST
Patent Text Reader

Abstract

The rolling brush assembly comprises a first rolling brush, a second rolling brush and a driving mechanism, and the first rolling brush and the second rolling brush are arranged in parallel; the two axial ends of the second rolling brush are connected with the corresponding ends of the first rolling brush respectively. The driving mechanism drives the first rolling brush to rotate; the second rolling brush can abut against the surface of the object to be cleaned, and the second rolling brush is connected with the rolling shaft. The dust collector further comprises a mop assembly, a rolling brush assembly installation part is arranged on the mop assembly, a rolling brush assembly installation space is formed in the rolling brush assembly installation part, a rolling brush assembly is installed in the rolling brush assembly installation space, and the first rolling brush is rotatably connected to the two side walls of the rolling brush assembly installation part. By arranging the second rolling brush, when the second rolling brush makes contact with the surface of a cleaned object, differential speed is formed between the second rolling brush and the rolling shaft, at the moment, the second rolling brush scrapes hair to the suction port in the nearly non-rotating state, the hair cannot be wound around the first rolling brush and is directly sucked away, cleaning is easy, and the cleaning efficiency is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaners, and in particular to a roller brush assembly for a vacuum cleaner and a vacuum cleaner having the same. Background Technology

[0002] A vacuum cleaner is a cleaning appliance used to remove dust from floors, carpets, walls, furniture, clothing, and various crevices. Household vacuum cleaners utilize a fan impeller driven by a high-speed electric motor. The blades in the impeller continuously perform work on the air, energizing the air within the impeller and expelling it from the fan at extremely high speed. Simultaneously, the air in the suction section at the front of the fan continuously replenishes the air in the impeller, creating a momentary vacuum within the suction section. This creates a significant negative pressure difference between the suction section and the external atmospheric pressure. Under this negative pressure difference, debris and dust near the nozzle are drawn into the vacuum cleaner by the airflow.

[0003] During vacuum cleaner use, there is a lot of long hair in the dressing room and bathroom. When users clean, the long hair gets tangled on the brush, which is difficult to clean and seriously affects usability and user experience.

[0004] Existing vacuum cleaners add comb teeth near the suction port on the base to detangle hair before vacuuming it away. However, the mechanism is prone to jamming the roller brush, causing excessive resistance, affecting utilization efficiency and energy loss; the hair is tightly tangled and haphazardly oriented, making it difficult for the comb teeth to detangle and vacuum it away; and the hair tangled on the comb teeth is difficult to clean. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The problem to be solved by this utility model is to provide a roller brush assembly for a vacuum cleaner and a vacuum cleaner having the same assembly, which not only simplifies cleaning but also improves cleaning efficiency.

[0007] (II) Technical Solution

[0008] To solve the aforementioned technical problem, this utility model provides a roller brush assembly for a vacuum cleaner, comprising:

[0009] First roller brush;

[0010] The second roller brush is disposed on the outer periphery of the first roller brush, and the first roller brush and the second roller brush are arranged in parallel; the two ends of the second roller brush are respectively connected to the corresponding ends of the first roller brush, and a rolling shaft is provided on the second roller brush;

[0011] A drive mechanism drives the first roller brush to rotate;

[0012] The second roller brush can come into contact with the surface of the item to be cleaned, and the second roller brush is rotatably connected to the roller shaft.

[0013] In this solution, by setting a second roller brush, the drive mechanism drives the first roller brush and the rolling shaft to rotate. The second roller brush rotates with the rolling shaft. When the second roller brush contacts the surface of the item being cleaned, the second roller brush and the rolling shaft form a differential speed. At this time, the second roller brush scrapes the hair to the suction port in a state where it is almost not rotating. The hair will not get tangled on the first or second roller brush and will be sucked away directly. This not only simplifies cleaning but also improves cleaning efficiency.

[0014] Preferably, the diameter of the first roller brush is the same as the diameter of the second roller brush.

[0015] Preferably, the diameter of the first roller brush is larger than the diameter of the second roller brush.

[0016] Preferably, there are two second roller brushes, which are symmetrically distributed on both sides of the first roller brush.

[0017] Preferably, both ends of the first roller brush are connected to an annular rotating shaft plate, the diameter of which is larger than the diameter of the first roller brush, and the second roller brush is connected to the annular rotating shaft plate.

[0018] In this solution, by setting an annular rotating shaft plate, when the first roller brush rotates under the drive of the drive mechanism, the annular rotating shaft plate rotates along with the first roller brush, thereby driving the second roller brush connected to the annular rotating shaft plate to rotate synchronously when the second roller brush does not come into contact with the surface of the item to be cleaned.

[0019] A vacuum cleaner includes a roller brush assembly for a vacuum cleaner, and the vacuum cleaner also includes a mop assembly. The mop assembly is provided with a roller brush assembly mounting part, and the roller brush assembly mounting part has a roller brush assembly mounting space. A roller brush assembly is installed in the roller brush assembly mounting space. A first roller brush is rotatably connected between the two side walls of the roller brush assembly mounting part and connected to the drive mechanism.

[0020] In this solution, installing a roller brush component on the mop assembly allows users to easily remove long hair while cleaning, without affecting usability or user experience.

[0021] Preferably, one side of the roller brush assembly mounting portion is provided with a through hole communicating with the roller brush assembly mounting space, and an end cap for sealing the through hole is detachably connected to the through hole.

[0022] In this design, by providing through holes, the assembly consisting of the first roller brush, the second roller brush, and the annular rotating shaft plate can be easily disassembled or installed within the roller brush assembly installation space, making installation and disassembly more convenient.

[0023] As a further preferred embodiment, a sliding groove is provided on the side wall of the roller brush assembly mounting part, and a slider is provided on the end cap. The slider can slide along the sliding groove to connect the end cap to the roller brush assembly mounting part. A limiting groove is provided on the side wall of the roller brush assembly mounting part, and a limiting block is provided on the end cap to be locked in the limiting groove.

[0024] In this design, by setting a sliding groove and a slider, the end cap can be initially connected to the roller brush assembly mounting part. Then, by using a limiting block to lock in the limiting groove, the end cap is fixed to the roller brush assembly mounting part, preventing it from falling off and causing the internal components to fall out when not disassembled.

[0025] As a further preferred embodiment, the end cap is provided with a handle and a mounting groove is provided on the end cap. The handle is hinged to the two side walls of the mounting groove and can be placed in the mounting groove.

[0026] In this design, a mounting slot is provided, and the handle is hinged within the mounting slot. When the end cap needs to be removed, the handle can be lifted to easily twist the end cap. When the end cap does not need to be removed, the handle can be placed in the mounting slot without taking up space and is convenient for storage.

[0027] Preferably, the mop assembly is provided with an air inlet, and the bottom of the roller brush assembly mounting part is provided with an air inlet communicating with the roller brush assembly mounting space, and the air inlet is connected to the air inlet.

[0028] (III) Beneficial Effects

[0029] The present invention provides a roller brush assembly for a vacuum cleaner and a vacuum cleaner having the same assembly, which has the following beneficial effects:

[0030] (1) By setting a second roller brush, the drive mechanism drives the first roller brush and the rolling shaft to rotate. The second roller brush rotates with the rolling shaft. When the second roller brush contacts the surface of the item being cleaned, the second roller brush and the rolling shaft form a differential speed. At this time, the second roller brush scrapes the hair to the suction port when it is almost not rotating. The hair will not be wrapped around the first roller brush or the second roller brush and will be sucked away directly. This not only makes cleaning simple but also improves cleaning efficiency.

[0031] (2) By setting an annular rotating plate, when the first roller brush rotates under the drive of the drive mechanism, the annular rotating plate rotates with the first roller brush, so that when the second roller brush does not come into contact with the surface of the item to be cleaned, it drives the second roller brush connected to the annular rotating plate to rotate.

[0032] (3) By installing a roller brush component on the mop assembly, users can easily clean long hair while cleaning, without affecting usability and user experience;

[0033] (4) By setting through holes, the assembly consisting of the first roller brush, the second roller brush and the annular rotating shaft plate can be easily disassembled or installed in the roller brush assembly installation space, making installation and disassembly more convenient;

[0034] (5) By setting the mounting slot, the handle is hinged in the mounting slot. When the end cover needs to be removed, the handle can be lifted to easily turn the end cover. When the end cover does not need to be removed, the handle can be placed in the mounting slot without taking up space and is convenient for storage. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a roller brush assembly for a vacuum cleaner and a first structure of a vacuum cleaner having the same assembly.

[0037] Figure 2 This is a schematic diagram of a roller brush assembly for a vacuum cleaner and a second structure of a vacuum cleaner having the same assembly.

[0038] Figure 3 This is a schematic diagram of the structure of a roller brush assembly for a vacuum cleaner and a hidden cover of the vacuum cleaner having the roller brush assembly;

[0039] Figure 4 This is an exploded view of the roller brush assembly for a vacuum cleaner and the hidden cover of the vacuum cleaner having the assembly.

[0040] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0041] Figure 6 This is a schematic diagram of the first structure of a roller brush assembly for a vacuum cleaner and a roller brush assembly for a vacuum cleaner having the present invention.

[0042] Figure 7 This is a schematic diagram of a roller brush assembly for a vacuum cleaner and a second structure of a roller brush assembly for a vacuum cleaner having the present invention.

[0043] Figure 8 This is an exploded structural diagram of a roller brush assembly for a vacuum cleaner and a roller brush assembly for a vacuum cleaner having the present invention.

[0044] The component names corresponding to the various labels in the figure are as follows: 1. First roller brush; 11. Annular rotating shaft plate; 2. Rolling shaft; 3. Second roller brush; 4. Drive mechanism; 5. Mop assembly; 51. Air inlet; 6. Roller brush assembly mounting part; 61. Roller brush assembly mounting space; 62. Through hole; 63. End cap; 64. Slide groove; 65. Slider; 66. Limiting groove; 67. Limiting block; 68. Air inlet; 7. Handle; 71. Mounting groove. Detailed Implementation

[0045] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0046] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0048] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0049] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0050] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings. Example 1:

[0051] Reference Figures 6-7 As shown, a roller brush assembly for a vacuum cleaner includes: a first roller brush 1, a second roller brush 3, and a drive mechanism 4. The second roller brush 3 is disposed on the outer periphery of the first roller brush 1, and the first roller brush 1 and the second roller brush 3 are arranged in parallel. The two axial ends of the second roller brush 3 are respectively connected to the corresponding ends of the first roller brush 1, and a rolling shaft 2 is provided on the second roller brush 3. The drive mechanism 4 drives the first roller brush 1 to rotate. The second roller brush 3 can come into contact with the surface of the item to be cleaned, and the second roller brush 3 is rotatably connected to the rolling shaft 2.

[0052] Furthermore, as a preferred embodiment, the diameter of the first roller brush 1 is the same as the diameter of the second roller brush 3.

[0053] Furthermore, as a preferred embodiment, the diameter of the first roller brush 1 is larger than the diameter of the second roller brush 3.

[0054] Furthermore, as a preferred embodiment, two second roller brushes 3 are provided, and the two second roller brushes 3 are symmetrically distributed on both sides of the first roller brush 1.

[0055] Furthermore, as a preferred embodiment, both ends of the first roller brush 1 are connected to an annular rotating shaft plate 11, the diameter of the annular rotating shaft plate 11 being larger than the diameter of the first roller brush 1, and the second roller brush 3 being connected to the annular rotating shaft plate 11.

[0056] Specifically, in this embodiment, both the first roller brush 1 and the second roller brush 3 are cylindrical. Two second roller brushes 3 are arranged on the outer periphery of the first roller brush 1, and the second roller brushes 3 are arranged parallel to the first roller brush 1. The two second roller brushes 3 are symmetrically distributed on both sides of the first roller brush 1, and the number of second roller brushes 3 can be increased or decreased as needed. The second roller brush 3 is provided with mounting holes, and a rolling shaft 2 is provided in the mounting holes. The rolling shaft 2 is rotatably connected to the second roller brush 3. Both ends of the first roller brush 1 are provided with annular rotating shaft plates 11, and one annular rotating shaft plate 11 is inserted into one side of the first roller brush 1, and the other annular rotating shaft plate 11 is sleeved on one side of the first roller brush 1. The diameter of the annular rotating shaft plate 11 is larger than the diameter of the first roller brush 1, so that the annular rotating shaft plate 11 can connect the two second roller brushes 3 between the two annular rotating shaft plates 11. Both ends of each rolling shaft 2 are connected to the two annular rotating shaft plates 11 respectively to connect and drive the first roller brush 1 and the second roller brush 3.

[0057] Specifically, in this embodiment, the diameter of the first roller brush 1 is larger than the diameter of the second roller brush 3. The driving mechanism 4 drives the first roller brush 1 to rotate, and the rolling shaft 2 rotates along with the first roller brush 1. The second roller brush 3 is mounted on the rolling shaft 2 and rotates synchronously. When the second roller brush 3 is rotated to the point where it is located below the first roller brush 1, it can come into contact with the surface of the item to be cleaned. Since the second roller brush 3 is rotatably connected to the rolling shaft 2, the resistance formed by friction creates a speed difference between the second roller brush 3 and the rolling shaft 2. When the second roller brush 3 comes into contact with the surface of the item to be cleaned, the second roller brush 3 is close to not rotating, which sweeps up the hair on the ground.

[0058] Specifically, in this embodiment, by setting a second roller brush 3, the driving mechanism 4 drives the first roller brush 1 and the rolling shaft 2 to rotate, and the second roller brush 3 follows the rotation of the rolling shaft 2. When the second roller brush 3 contacts the surface of the item being cleaned, the second roller brush 3 and the rolling shaft 2 form a differential speed. At this time, the second roller brush 3 scrapes the hair to the suction port in a state where it is almost not rotating. The hair will not be tangled on the first roller brush 1 or the second roller brush 3 and will be directly sucked away, which not only makes cleaning simple but also improves cleaning efficiency.

[0059] Specifically, in this embodiment, by setting an annular rotating shaft plate 11, when the first roller brush 1 rotates under the drive of the drive mechanism 4, the annular rotating shaft plate 11 rotates along with the first roller brush 1, thereby driving the second roller brush 3, which is connected to the annular rotating shaft plate 11, to rotate synchronously when the second roller brush 3 does not come into contact with the surface of the item to be cleaned. Example 2:

[0060] A vacuum cleaner includes a roller brush assembly as described in Embodiment 1. The vacuum cleaner also includes a mop assembly 5. The mop assembly 5 is provided with a roller brush assembly mounting part 6. The roller brush assembly mounting part 6 has a roller brush assembly mounting space 61. A roller brush assembly is installed in the roller brush assembly mounting space 61. The first roller brush 1 is rotatably connected between the two side walls of the roller brush assembly mounting part 6 and connected to the drive mechanism 4.

[0061] Furthermore, as a preferred embodiment, the mop assembly 5 is provided with an air inlet 51, and the bottom of the roller brush assembly mounting part 6 is provided with an air inlet 68 communicating with the roller brush assembly mounting space 61, and the air inlet 68 is connected to the air inlet 51.

[0062] Specifically, in this embodiment, the mop assembly 5 includes a vertical part and a horizontal part connected to each other. The vertical part is connected to the vacuum cleaner handle, and the horizontal part includes a housing and a roller brush assembly mounting part 6. The housing is equipped with a drive mechanism 4, which is a drive motor. The roller brush assembly mounting part 6 has a roller brush assembly mounting space 61 for mounting the roller brush assembly for the vacuum cleaner. The roller brush assembly mounting part 6 is equipped with gears, and the drive motor is also equipped with gears. A transmission belt is provided between the two gears. The rotation of the drive motor drives the transmission belt to drive the gears in the roller brush assembly mounting part 6 to rotate. The first roller brush 1 is connected to the gears in the roller brush assembly mounting part 6. The rotation of the gears in the roller brush assembly mounting part 6 drives the first roller brush 1 to rotate. Annular rotating shaft plates 11 are fixed on both the left and right sides of the first roller brush 1. The rolling shaft 2 and the second roller brush 3 are connected between the two annular rotating shaft plates 11. The annular rotating shaft plates 11 rotate synchronously with the first roller brush 1. The rolling shaft 2 moves together with the annular rotating plate 11. The connection between the rolling shaft 2 and the annular rotating plate 11 can be detachable, such as by bolt, ultrasonic connection or snap-fit ​​connection. The outer surface of the second roller brush 3 can be covered with fiber cloth or foam. The number of rolling shafts 2 and the second roller brush 3 can be increased or decreased as needed. The bottom of the roller brush assembly mounting part 6 is provided with an air inlet 68 that connects to the roller brush assembly mounting space 61. The mop assembly 5 is provided with an air inlet 51, and the air inlet 68 is connected to the air inlet 51. When the vacuum cleaner is working normally, the drive mechanism 4 drives the first roller brush 1 to rotate forward. When the second roller brush 3 rotates to contact the ground, the resistance of the ground causes the second roller brush 3 to rotate around the rolling shaft 2 and form a speed difference with the first roller brush 1. The second roller brush 3 tends to move backward relative to the ground at the position of contact with the ground, which moves the ground debris to the air inlet 68 and into the air inlet 51 for cleaning.

[0063] Specifically, in this embodiment, by installing a roller brush assembly on the mop assembly 5, users can easily clean long hair while cleaning without affecting usability and user experience.

[0064] Furthermore, as a preferred embodiment, a through hole 62 communicating with the roller brush assembly mounting space 61 is provided on one side of the roller brush assembly mounting part 6, and an end cap 63 for sealing the through hole 62 is detachably connected to the through hole 62.

[0065] Furthermore, as a preferred embodiment, a sliding groove 64 is provided on the side wall of the roller brush assembly mounting part 6, and a slider 65 is provided on the end cap 63. The slider 65 can slide along the sliding groove 64 to connect the end cap 63 to the roller brush assembly mounting part 6; a limiting groove 66 is provided on the side wall of the roller brush assembly mounting part 6, and a limiting block 67 is provided on the end cap 63 to be engaged in the limiting groove 66.

[0066] Furthermore, as a preferred embodiment, the end cap 63 is provided with a handle 7, and the end cap 63 is provided with a mounting groove 71. The handle 7 is hinged to the two side walls of the mounting groove 71, and the handle 7 can be placed in the mounting groove 71.

[0067] Specifically, in this embodiment, a through hole 62 is provided on one side of the roller brush assembly mounting part 6. The through hole 62 connects the outside to the roller brush assembly mounting space 61. The first roller brush 1, the rolling shaft 2, the second roller brush 3, the annular rotating shaft plate 11, and the end cover 63 form a differential roller brush rod assembly. The differential roller brush rod assembly is detachably connected to the roller brush assembly mounting space 61, which facilitates the replacement and cleaning of the first roller brush 1 and the second roller brush 3. A slider 65 is provided on the end cover 63. A groove 64 is provided on the outer peripheral wall of the through hole 62 on the roller brush assembly mounting part 6. The slider 65 can slide along the groove 64. When the differential roller brush rod assembly is installed in the roller brush assembly mounting space 61, the end cover 63 seals the through hole 62. Rotating the end cover 63 moves the slider 65. 5. The roller brush assembly slides within the groove 64. A limiting block 67 is provided on the end cover 63, and a limiting groove 66 is provided on the roller brush assembly mounting part 6. When the end cover 63 is rotated to the position, the limiting block 67 is locked in the limiting groove 66, thereby connecting the end cover 63 with the roller brush assembly mounting part 6 and connecting the differential roller brush assembly to the roller brush assembly mounting space 61. At this time, without using a large force to rotate the end cover 63, the limiting block 67 cannot be disengaged from the limiting groove 66, and the differential roller brush assembly will not fall out of the roller brush assembly mounting space 61. An installation groove 71 is provided on the end cover 63, and a handle 7 is provided on the end cover 63. The handle 7 is hinged to the two side walls of the installation groove 71. When the handle 7 is not in use, it can be placed in the installation groove 71 due to its own weight.

[0068] Specifically, in this embodiment, the through hole 62 facilitates the disassembly or installation of the assembly consisting of the first roller brush 1, the second roller brush 3, and the annular rotating shaft plate 11 within the roller brush assembly mounting space 61, making installation and disassembly more convenient. The sliding groove 64 and the slider 65 allow the end cap 63 to be initially connected to the roller brush assembly mounting part 6. The limiting block 67, engaged within the limiting groove 66, secures the end cap 63 to the roller brush assembly mounting part 6, preventing it from falling out and causing internal components to spill out when not disassembled. The handle 7 allows for easy unscrewing of the end cap 63 from the roller brush assembly mounting part 6, enabling the disassembly and replacement of components within the mounting area. The mounting groove 71 allows the handle 7 to be placed within it. When the end cap 63 needs to be disassembled, the handle 7 can be lifted for easy unscrewing; when the end cap 63 does not need to be disassembled, the handle 7 can be placed within the mounting groove 71 for convenient storage without taking up space.

[0069] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0070] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A roller brush assembly for a vacuum cleaner, characterized in that: include: First roller brush (1); The second roller brush (3) is located on the outer periphery of the first roller brush (1). The first roller brush (1) and the second roller brush (3) are arranged in parallel. The two ends of the axial direction of the second roller brush (3) are respectively connected to the corresponding ends of the first roller brush (1). A rolling shaft (2) is provided on the second roller brush (3). Drive mechanism (4), which drives the first roller brush (1) to rotate; The second roller brush (3) can come into contact with the surface of the item to be cleaned, and the second roller brush (3) is rotatably connected to the roller shaft (2).

2. The roller brush assembly for a vacuum cleaner as described in claim 1, characterized in that: The diameter of the first roller brush (1) is the same as the diameter of the second roller brush (3).

3. The roller brush assembly for a vacuum cleaner as described in claim 2, characterized in that: The diameter of the first roller brush (1) is larger than the diameter of the second roller brush (3).

4. The roller brush assembly for a vacuum cleaner as described in claim 3, characterized in that: There are two second roller brushes (3), which are symmetrically distributed on both sides of the first roller brush (1).

5. The roller brush assembly for a vacuum cleaner as described in claim 4, characterized in that: Both ends of the first roller brush (1) are connected to an annular rotating plate (11), the diameter of which is larger than the diameter of the first roller brush (1), and the second roller brush (3) is connected to the annular rotating plate (11).

6. A vacuum cleaner, characterized in that: The vacuum cleaner includes the roller brush assembly as described in claim 5, and further includes a mop assembly (5). The mop assembly (5) is provided with a roller brush assembly mounting part (6). The roller brush assembly mounting part (6) is provided with a roller brush assembly mounting space (61). The roller brush assembly is installed in the roller brush assembly mounting space (61). The first roller brush (1) is rotatably connected between the two side walls of the roller brush assembly mounting part (6) and connected to the drive mechanism (4).

7. The vacuum cleaner as described in claim 6, characterized in that: One side of the roller brush assembly mounting part (6) is provided with a through hole (62) communicating with the roller brush assembly mounting space (61), and an end cap (63) for sealing the through hole (62) is detachably connected to the through hole (62).

8. The vacuum cleaner as described in claim 7, characterized in that: The side wall of the roller brush assembly mounting part (6) is provided with a sliding groove (64), and the end cap (63) is provided with a slider (65). The slider (65) can slide along the sliding groove (64) to connect the end cap (63) to the roller brush assembly mounting part (6). The side wall of the roller brush assembly mounting part (6) is provided with a limiting groove (66), and the end cap (63) is provided with a limiting block (67) that can be locked in the limiting groove (66).

9. The vacuum cleaner as described in claim 8, characterized in that: The end cap (63) is provided with a handle (7) and an installation groove (71) is provided on the end cap (63). The handle (7) is hinged to the two side walls of the installation groove (71) and the handle (7) can be placed in the installation groove (71).

10. The vacuum cleaner as described in claim 6, characterized in that: The mop assembly (5) is provided with an air inlet (51), and the bottom of the roller brush assembly mounting part (6) is provided with an air inlet (68) that communicates with the roller brush assembly mounting space (61). The air inlet (68) is connected to the air inlet (51).