Rolling brush device and cleaning equipment

Abstract

The invention provides a rolling brush device and cleaning equipment. The rolling brush device comprises a rolling brush outer cover, a rolling brush and a power module. The rolling brush outer cover is used for being installed on a main body of cleaning equipment. The plurality of rolling brushes are rotatably connected to the rolling brush outer cover; the rolling brushes are arranged side by side in the width direction of the rolling brush outer cover, the power module comprises a power motor and a transmission module, and the power motor drives the transmission module; the transmission module is located in the power containing space. The transmission module is provided with a plurality of first driven wheels, and the plurality of first driven wheels are rotatably connected to the rolling brush outer cover; the plurality of first driven wheels are driven by the power motor to rotate; the multiple first driven wheels are connected with the corresponding rolling brushes correspondingly, the multiple rolling brushes rotate synchronously along with rotation of the multiple first driven wheels, so that one power motor drives the multiple rolling brushes to rotate synchronously, the number of needed power motors is reduced, and energy consumption and cost of the rolling brush device are reduced; and an efficient transmission module is adopted, so that the stability and reliability of power transmission are ensured.

Description

Technical Field

[0001] This invention relates to the technical field of cleaning equipment, and more particularly to a roller brush device and a cleaning device. Background Technology

[0002] With the development of technology, cleaning equipment is applied in industry, playing a role in efficient cleaning, reducing labor costs while improving work efficiency and cleanliness. Roller brush devices are a type of cleaning equipment. In existing technology, existing roller brush devices include a roller brush cover, multiple roller brushes, and multiple motors. Multiple roller brushes are tractably connected to the roller brush cover, and multiple motors are connected to corresponding roller brushes. However, one motor corresponds to one roller brush, resulting in a high cost for existing roller brush devices. Summary of the Invention

[0003] The purpose of this invention is to provide a roller brush device and a cleaning equipment. A roller brush cover is installed on the main body of the cleaning equipment. The roller brush cover has a roller brush receiving space and a power receiving space, which are respectively located at different positions on the roller brush cover. Multiple roller brushes are housed in the roller brush receiving space and rotatably connected to the roller brush cover. The multiple roller brushes are arranged side-by-side along the width direction of the roller brush cover and rotate synchronously. The power module includes a power motor and a transmission module. The power motor is located on the outside of the roller brush cover and drives the transmission module. The transmission module is located in the power receiving space. The transmission module has multiple first driven wheels, which are rotatably connected to the roller brush cover. The multiple first driven wheels rotate under the drive of the power motor. Each of the multiple first driven wheels is connected to a corresponding roller brush, and the multiple roller brushes rotate synchronously with the rotation of the multiple first driven wheels. This achieves synchronous rotation of multiple roller brushes driven by one power motor, reducing the number of power motors required and lowering the energy consumption and cost of the roller brush device. Simultaneously, the use of a high-efficiency transmission module ensures the stability and reliability of power transmission.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a roller brush device applied to cleaning equipment, the roller brush device comprising:

[0005] A roller brush cover is used to be installed on the main body of a cleaning device; the roller brush cover has a roller brush receiving space and a power receiving space, and the roller brush receiving space and the power receiving space are respectively located at different positions of the roller brush cover.

[0006] Multiple roller brushes are housed in the roller brush receiving space and rotatably connected to the roller brush cover; the multiple roller brushes are arranged side by side along the width direction of the roller brush cover and the multiple roller brushes rotate synchronously.

[0007] The power module includes a power motor and a transmission module. The power motor is located on the outside of the roller brush cover and drives the transmission module. The transmission module is located in the power receiving space. The transmission module is provided with a plurality of first driven wheels, which are rotatably connected to the roller brush cover. The plurality of first driven wheels rotate under the drive of the power motor. The plurality of first driven wheels are respectively connected to corresponding roller brushes, and the plurality of roller brushes rotate synchronously with the rotation of the plurality of first driven wheels.

[0008] Optionally, the outer cover of the roller brush is connected to a support base, and the support base supports the power motor;

[0009] The power module also includes a drive wheel, a transmission belt, an elastic element, and a tensioning wheel. The drive wheel is rotatably connected to the support base. The drive wheel is directly or indirectly connected to the output end of the power motor. The transmission belt is sleeved on the drive wheel and a plurality of first driven wheels, and the plurality of first driven wheels rotate under the drive of the drive wheel and the transmission belt.

[0010] The tensioning wheel is oscillatingly connected to the outer cover of the roller brush or the support base and is subjected to the elastic force of the elastic element; the tensioning wheel elastically presses against the transmission belt to elastically tension the transmission belt.

[0011] Optionally, the power module further includes a swing arm, which is swayably connected to the brush cover or the support base and supports the tension wheel; the wheel surface of the tension wheel continuously contacts a surface of the transmission belt; the elastic element is located between the brush cover and the swing arm and applies an elastic force to the swing arm.

[0012] Optionally, the outer cover of the roller brush is provided with a connecting seat;

[0013] The power module also includes a pressure seat, which is movably connected to the connecting seat;

[0014] The elastic element is located between the pressing seat and the connecting seat, and applies an elastic force to the pressing seat; the end of the pressing seat away from the connecting seat is connected to the swing arm.

[0015] Optionally, the tensioning wheel is rotatably connected to the swing arm and is connected to the swing arm via a rotating shaft; the pressure seat is connected to the rotating shaft, in which case the rotating shaft passes through the tensioning wheel, the swing arm, and the pressure seat; the tensioning wheel is a first bearing.

[0016] Optionally, there are multiple tensioning pulleys, which are arranged sequentially along the axis of the shaft and act on the same transmission belt.

[0017] Optionally, the transmission module further includes a second bearing, the second bearing and a plurality of first driven wheels are arranged sequentially along the horizontal direction, and the transmission belt pulls the bearing and the plurality of first driven wheels; the second bearing is rotatably connected to the roller brush cover and is located in the power receiving space.

[0018] Optionally, the axes of the plurality of first driven wheels are at the same horizontal position;

[0019] The multiple rollers are connected to the corresponding first driven wheels and rotate as the corresponding first driven wheels rotate.

[0020] Optionally, the roller brush device further includes a side cover, which is disposed on one side of the roller brush outer cover and covers the power module in the lateral direction;

[0021] The side cover is detachably connected to the outer cover of the roller brush and can open or close the power receiving space.

[0022] To achieve the above objectives, the present invention provides the following technical solution: a cleaning device, comprising the aforementioned roller brush device and a cleaning device body, wherein the cleaning device body supports the roller brush device.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention provides a roller brush device and a cleaning equipment. A roller brush cover is installed on the main body of the cleaning equipment. The roller brush cover has a roller brush receiving space and a power receiving space, which are respectively located at different positions on the roller brush cover. Multiple roller brushes are housed in the roller brush receiving space and rotatably connected to the roller brush cover. The multiple roller brushes are arranged side-by-side along the width direction of the roller brush cover and rotate synchronously. The power module includes a power motor and a transmission module. The power motor is located on the outside of the roller brush cover and drives the transmission module. The transmission module is located in the power receiving space. The transmission module has multiple first driven wheels, which are rotatably connected to the roller brush cover. The multiple first driven wheels rotate under the drive of the power motor. Each of the multiple first driven wheels is connected to a corresponding roller brush, and the multiple roller brushes rotate synchronously with the rotation of the multiple first driven wheels. This achieves synchronous rotation of multiple roller brushes driven by one power motor, reducing the number of power motors required and lowering the energy consumption and cost of the roller brush device. Simultaneously, the use of a high-efficiency transmission module ensures the stability and reliability of power transmission. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0026] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0027] Figure 1 A schematic diagram of a roller brush device according to an embodiment of this application is shown.

[0028] Figure 2 A schematic diagram of the internal structure of a roller brush device according to an embodiment of this application is shown.

[0029] Figure 3 An exploded view of a brush device according to an embodiment of this application is shown.

[0030] Figure 4 A schematic diagram showing the connection between the roller brush cover and the roller brush of a roller brush device according to an embodiment of this application is shown.

[0031] Figure 5 A schematic diagram of the power module of a roller brush device according to an embodiment of this application is shown.

[0032] Figure 6 A schematic diagram of the power motor of a roller brush device according to an embodiment of this application is shown.

[0033] Figure Labels

[0034] 100. Roller brush device;

[0035] 10. Brush cover; 10a. Brush housing space; 10b. Power housing space; 11. Support base; 12. Connecting base;

[0036] 20. Roller brush;

[0037] 30. Power module; 31. Power motor; 32. Transmission module; 321. First driven pulley; 322. Drive pulley; 323. Transmission belt; 324. Elastic element; 325. Tensioner; 326. Second bearing; 33. Swing arm; 34. Pressing seat;

[0038] 40. Side cover;

[0039] 50. Torque limiter; 51. Motor protective cover; 52. Bushing; 53. Coupling; 54. Drive wheel shaft. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] Please refer to the attached document. Figures 1-6 This application provides a roller brush device 100, which is applied to cleaning equipment and used to clean the ground.

[0042] Please refer to the attached document. Figures 1-6 In this embodiment, the roller brush device 100 includes a roller brush cover 10, roller brushes 20, and a power module 30. The roller brush cover 10 is used to install on the main body of the cleaning equipment. The roller brush cover 10 has a roller brush receiving space 10a and a power receiving space 10b, which are respectively located at different positions on the roller brush cover 10. Multiple roller brushes 20 are all housed in the roller brush receiving space 10a and rotatably connected to the roller brush cover 10. The multiple roller brushes 20 are arranged side by side along the width direction of the roller brush cover 10, and the multiple roller brushes 20 rotate synchronously. The power module 30 includes a power motor 31 and a transmission module 32. The power motor 31 is located on the roller brush cover 10. The outer side is driven by the transmission module 32; the transmission module 32 is located in the power housing space 10b; the transmission module 32 is provided with multiple first driven wheels 321, which are rotatably connected to the roller brush cover 10; the multiple first driven wheels 321 rotate under the drive of the power motor 31; the multiple first driven wheels 321 are respectively connected to the corresponding roller brush 20, and the multiple roller brushes 20 rotate synchronously with the rotation of the multiple first driven wheels 321, so as to realize that one power motor 31 drives multiple roller brushes 20 to rotate synchronously, reducing the number of power motors 31 required and reducing the energy consumption and cost of the roller brush device 100; at the same time, the use of a high-efficiency transmission module 32 ensures the stability and reliability of power transmission.

[0043] Optionally, regarding the connection between the roller brush 20 and the first driven wheel 321, the first driven wheel 321 is fixed to the side end cover by a bearing and connected to the transmission wheel by a flat key. It rotates in a hexagonal shape, similar to the inner insert of the roller brush 20. The other first driven wheel 321 rotates in a cylindrical shape, similar to the roller brush 20, and is also fixed to the side end cover by a bearing.

[0044] Please refer to the attached document. Figures 1-6In this embodiment, the roller brush cover 10 serves as a support component of the roller brush device 100, supporting the roller brush 20 and the power module 30. The roller brush cover 10 is installed on the main body of the cleaning equipment, allowing the roller brush device 100 to connect to the main body of the cleaning equipment via the roller brush cover 10. The roller brush cover 10 has a roller brush receiving space 10a and a power receiving space 10b, which are respectively located at different positions within the roller brush cover 10. The roller brush receiving space 10a serves as the internal space of the roller brush cover 10, while the power receiving space 10b is located on the upper side of the roller brush cover 10.

[0045] Multiple roller brushes 20 are housed in the roller brush receiving space 10a so that the multiple roller brushes 20 can make full use of the internal space of the roller brush cover 10. The multiple roller brushes 20 are rotatably connected to the roller brush cover 10 so as to adjust the position of the multiple roller brushes 20 relative to the roller brush cover 10. The multiple roller brushes 20 are arranged side by side along the width direction of the roller brush cover 10 and the multiple roller brushes 20 rotate synchronously. By arranging multiple roller brushes 20, the cleaning effect of the roller brushes 20 on the ground is improved.

[0046] The power module 30 includes a power motor 31 and a transmission module 32. The power motor 31 is located on the outside of the roller brush cover 10 and drives the transmission module 32. The transmission module 32 is located in the power receiving space 10b. The transmission module 32 is provided with multiple first driven wheels 321, which are rotatably connected to the roller brush cover 10. The multiple first driven wheels 321 rotate under the drive of the power motor 31. The multiple first driven wheels 321 are respectively connected to the corresponding roller brushes 20. The multiple roller brushes 20 rotate synchronously with the rotation of the multiple first driven wheels 321, so as to realize that one power motor 31 drives multiple roller brushes 20 to rotate synchronously, reducing the number of power motors 31 required and reducing the energy consumption and cost of the roller brush device 100. At the same time, the use of a high-efficiency transmission module 32 ensures the stability and reliability of power transmission.

[0047] Optionally, for the protection of the power motor 31, a corresponding motor protective cover 51 is added to the power motor 31 to isolate the power motor 31 from the external environment. In addition, a side baffle is added to the side wall of the roller brush cover 10 to prevent water from overflowing to the side.

[0048] Furthermore, the power motor 31 is connected to a torque limiter 50, which is connected to the output end of the power motor 31. The output end of the power motor 31 is connected to the torque limiter 50 through a bushing 52 and a coupling 53. The torque limiter 50 is connected to the corresponding transmission wheel shaft 54.

[0049] Please refer to the attached document. Figures 1-6In this embodiment of the application, the roller brush cover 10 is connected to a support base 11, which is located on the upper side of the roller brush cover 10 and supports the power motor 31. This allows the roller brush cover 10 to support the power motor 31 through the support base 11, thus ensuring the stability of the power motor 31 relative to the roller brush cover 10.

[0050] The power module 30 also includes a drive wheel 322, a transmission belt 323, an elastic element 324, and a tensioning wheel 325. The drive wheel 322 is rotatably connected to the support base 11 to facilitate adjustment of the position of the drive wheel 322 relative to the support base 11. The drive wheel 322 is directly or indirectly connected to the output end of the power motor 31 so that the power motor 31 drives the drive wheel 322 to rotate. The transmission belt 323 is sleeved on the drive wheel 322 and multiple first driven wheels 321. The multiple first driven wheels 321 rotate under the drive of the drive wheel 322 and the transmission belt 323. This allows the drive wheel 322 and the multiple first driven wheels 321 to rotate simultaneously when the power motor 31 starts, thereby facilitating the synchronous rotation of multiple roller brushes 20 with the rotation of the multiple first driven wheels 321. This achieves the synchronous rotation of multiple roller brushes 20 by one power motor 31, reducing the number of power motors 31 required and lowering the energy consumption and cost of the roller brush device 100.

[0051] Optionally, a 7-peak, 6-valve PJ multi-wedge belt can be used for transmission, relying on friction for power transfer. The PJ type multi-wedge belt is a type of multi-wedge belt (multi-groove belt). Its structure uses a flat belt as the base, with longitudinally arranged 40° trapezoidal wedges at equal intervals on the inner surface, and the working surface is the side of the wedge. Based on parameters such as wedge pitch and belt thickness, multi-wedge belts are divided into five models: PH, PJ, PK, PL, and PM. The PJ type has a wedge pitch of 2.34mm, a belt thickness of 4±0.2mm, and a wedge angle of 40°, making it suitable for medium-power transmissions.

[0052] The tensioning pulley 325 is oscillatingly connected to the brush cover 10 or the support base 11 to facilitate adjustment of the position of the tensioning pulley 325 relative to the brush cover 10 or the support base 11. The tensioning pulley 325 is subjected to the elastic force of the elastic element 324. The tensioning pulley 325 elastically presses against the transmission belt 323 to elastically tension the transmission belt 323, ensuring the tension of the transmission belt 323, improving the meshing degree between the transmission belt 323 and the driving pulley 322 and the multiple first driven pulleys 321, and preventing the transmission belt 323 from disengaging from the driving pulley 322 and the multiple first driven pulleys 321.

[0053] Please refer to the attached document. Figures 1-6In this embodiment, the power module 30 further includes a swing arm 33, which is oscillatingly connected to the brush cover 10 or the support base 11 to adjust the position of the swing arm 33 relative to the brush cover 10 or the support base 11. The swing arm 33 supports the tension wheel 325, allowing the tension wheel 325 to swing relative to the brush cover 10 or the support base 11 via the swing arm 33, thus facilitating the swing of the tension wheel 325 toward the transmission belt 323. The wheel surface of the tension wheel 325 continuously contacts a surface of the transmission belt 323. An elastic element 324 is located between the brush cover 10 and the swing arm 33 and applies an elastic force to the swing arm 33, so that the elastic element 324 applies an elastic force to the tension wheel 325 via the swing arm 33, thereby facilitating the tension wheel 325 to apply tension to the transmission belt 323 under the elastic force. Optionally, the elastic element 324 is a spring with parameters of outer diameter 14, length 65, and wire diameter 2mm.

[0054] Please refer to the attached document. Figures 1-6 In this embodiment, the roller brush cover 10 is provided with a connecting seat 12; the power module 30 also includes a pressing seat 34, which is movably connected to the connecting seat 12 to adjust the position of the pressing seat 34 relative to the connecting seat 12; the elastic element 324 is located between the pressing seat 34 and the connecting seat 12 and applies an elastic force to the pressing seat 34; one end of the pressing seat 34 away from the connecting seat 12 is connected to the swing arm 33 so that the pressing seat 34 applies a pressing force to the swing arm 33 under the elastic action of the elastic element 324, thereby facilitating the swing arm 33 to drive the tensioning wheel 325 to apply tension to the transmission belt 323.

[0055] Please refer to the attached document. Figures 1-6 In this embodiment, the tension wheel 325 is rotatably connected to the swing arm 33 and is connected to the swing arm 33 via a rotating shaft to facilitate adjusting the position of the tension wheel 325 relative to the swing arm 33; the pressure seat 34 is connected to the rotating shaft, and the rotating shaft passes through the tension wheel 325, the swing arm 33 and the pressure seat 34; the tension wheel 325 is a first bearing, and when the tension wheel 325 contacts the transmission belt 323, the transmission belt 323 drives the tension wheel 325 to rotate.

[0056] Please refer to the attached document. Figures 1-6 In this embodiment, there are multiple tensioning pulleys 325, which are arranged sequentially along the axis of the rotating shaft and act on the same transmission belt 323. By arranging multiple tensioning pulleys 325, the contact area between the tensioning pulleys 325 and the transmission belt 323 is increased, thus preventing one tensioning pulley 325 from detaching from the transmission belt 323 and losing its tensioning effect.

[0057] Please refer to the attached document. Figures 1-6In this embodiment, the transmission module 32 further includes a second bearing 326. The second bearing 326 and a plurality of first driven pulleys 321 are arranged sequentially along the horizontal direction. The transmission belt 323 tractions the bearing and the plurality of first driven pulleys 321. The second bearing 326 is rotatably connected to the roller brush cover 10 to facilitate adjustment of the position of the second bearing 326 relative to the roller brush cover 10. The second bearing 326 is located in the power receiving space 10b, and the rotation smoothness of the transmission belt 323 is increased by the second bearing 326.

[0058] Please refer to the attached document. Figures 1-6 In this embodiment, the axes of the multiple first driven wheels 321 are at the same horizontal position; the multiple roller brushes 20 are connected to the corresponding first driven wheels 321 and rotate with the rotation of the corresponding first driven wheels 321, so that the multiple roller brushes 20 can clean the ground at the same level. Optionally, the roller brushes 20 float in the roller brush receiving space 10a and float when encountering hard obstacles to overcome the obstruction of the hard obstacles. In addition, when encountering high resistance, the software detects that the current of the power motor 31 is high and will slightly raise the entire roller brush 20 to avoid it. After the current of the power motor 31 decreases, the roller brush assembly will be lowered again.

[0059] Please refer to the attached document. Figure 1 In this embodiment, the roller brush device 100 further includes a side cover 40, which is disposed on one side of the roller brush outer cover 10 and covers the power module 30 along the lateral direction. The side cover 40 is detachably connected to the roller brush outer cover 10 so that the side cover 40 can be connected to or detached from the roller brush outer cover 10. The side cover 40 opens or closes the power receiving space 10b. When the side cover 40 opens the power receiving space 10b, it facilitates the installation of the power module 30, improving the installation convenience of the power module 30. When the side cover 40 closes the power receiving space 10b, it protects the power module 30 from direct external impact.

[0060] In a second embodiment, a cleaning device includes a roller brush assembly 100 and a main body. The main body supports the roller brush assembly 100 to ensure its fixation. This cleaning device provides efficient cleaning, reducing labor costs while improving work efficiency and cleanliness.

[0061] Compared with the prior art, the beneficial effects of the present invention are:

[0062] This invention provides a roller brush device 100 and a cleaning device. A roller brush cover 10 is installed on the main body of the cleaning device. The roller brush cover 10 has a roller brush receiving space 10a and a power receiving space 10b, which are respectively located at different positions on the roller brush cover 10. Multiple roller brushes 20 are housed in the roller brush receiving space 10a and rotatably connected to the roller brush cover 10. The multiple roller brushes 20 are arranged side-by-side along the width direction of the roller brush cover 10 and rotate synchronously. The power module 30 includes a power motor 31 and a transmission module 32. The power motor 31 is located on the outside of the roller brush cover 10 and drives the transmission module. Block 32; the transmission module 32 is located in the power receiving space 10b; the transmission module 32 is provided with multiple first driven wheels 321, which are rotatably connected to the roller brush cover 10; the multiple first driven wheels 321 rotate under the drive of the power motor 31; the multiple first driven wheels 321 are respectively connected to the corresponding roller brush 20, and the multiple roller brushes 20 rotate synchronously with the rotation of the multiple first driven wheels 321, so as to realize that one power motor 31 drives multiple roller brushes 20 to rotate synchronously, reducing the number of power motors 31 required and reducing the energy consumption and cost of the roller brush device 100; at the same time, the use of a high-efficiency transmission module 32 ensures the stability and reliability of power transmission.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0064] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0065] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A roller brush device, characterized in that, The roller brush device, used in cleaning equipment, includes: A roller brush cover is used to be installed on the main body of a cleaning device; the roller brush cover has a roller brush receiving space and a power receiving space, and the roller brush receiving space and the power receiving space are respectively located at different positions of the roller brush cover. Multiple roller brushes are housed in the roller brush receiving space and rotatably connected to the roller brush cover; the multiple roller brushes are arranged side by side along the width direction of the roller brush cover and the multiple roller brushes rotate synchronously. The power module includes a power motor and a transmission module. The power motor is located on the outside of the roller brush cover and drives the transmission module. The transmission module is located in the power receiving space. The transmission module is provided with a plurality of first driven wheels, which are rotatably connected to the roller brush cover. The plurality of first driven wheels rotate under the drive of the power motor. The plurality of first driven wheels are respectively connected to corresponding roller brushes, and the plurality of roller brushes rotate synchronously with the rotation of the plurality of first driven wheels.

2. The roller brush device according to claim 1, characterized in that, The outer cover of the roller brush is connected to a support base, and the support base supports the power motor; The power module also includes a drive wheel, a transmission belt, an elastic element, and a tensioning wheel. The drive wheel is rotatably connected to the support base. The drive wheel is directly or indirectly connected to the output end of the power motor. The transmission belt is sleeved on the drive wheel and a plurality of first driven wheels, and the plurality of first driven wheels rotate under the drive of the drive wheel and the transmission belt. The tensioning wheel is oscillatingly connected to the outer cover of the roller brush or the support base and is subjected to the elastic force of the elastic element; the tensioning wheel elastically presses against the transmission belt to elastically tension the transmission belt.

3. The roller brush device according to claim 2, characterized in that, The power module also includes a swing arm, which is oscillatingly connected to the brush cover or the support base and supports the tension wheel; the wheel surface of the tension wheel continuously contacts a surface of the transmission belt; the elastic element is located between the brush cover and the swing arm and applies an elastic force to the swing arm.

4. The roller brush device according to claim 3, characterized in that, The outer cover of the roller brush is provided with a connecting seat; The power module also includes a pressure seat, which is movably connected to the connecting seat; The elastic element is located between the pressing seat and the connecting seat, and applies an elastic force to the pressing seat; the end of the pressing seat away from the connecting seat is connected to the swing arm.

5. The roller brush device according to claim 4, characterized in that, The tensioning wheel is rotatably connected to the swing arm and is connected to the swing arm via a rotating shaft; the pressure seat is connected to the rotating shaft, at which time the rotating shaft passes through the tensioning wheel, the swing arm and the pressure seat; the tensioning wheel is a first bearing.

6. The roller brush device according to claim 5, characterized in that, The tensioning pulleys are multiple in number and are arranged sequentially along the axis of the rotating shaft, and act on the same transmission belt.

7. The roller brush device according to claim 6, characterized in that, The transmission module further includes a second bearing, and the second bearing and a plurality of first driven wheels are arranged sequentially along the horizontal direction. The transmission belt pulls the bearing and the plurality of first driven wheels. The second bearing is rotatably connected to the outer cover of the roller brush and is located in the power receiving space.

8. The roller brush device according to claim 1, characterized in that, The axes of the multiple first driven wheels are at the same horizontal position; The multiple rollers are connected to the corresponding first driven wheels and rotate as the corresponding first driven wheels rotate.

9. The roller brush device according to claim 1, characterized in that, The roller brush device also includes a side cover, which is disposed on one side of the roller brush outer cover and covers the power module along the lateral direction; The side cover is detachably connected to the outer cover of the roller brush and can open or close the power receiving space.

10. A cleaning device, characterized in that, It includes a roller brush device as described in any one of claims 1 to 9 and a cleaning equipment body, wherein the cleaning equipment body supports the roller brush device.

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