Rolling brush mechanism and cleaning device

Abstract

The application provides a rolling brush mechanism, which comprises a rolling brush shell, a rolling brush assembly rotatably arranged in the rolling brush shell, and a driving assembly for driving the rolling brush assembly to rotate. The rear part of the rolling brush shell is provided with a garbage sweeping outlet, and the lower part of the rolling brush shell is provided with an open mouth. The rolling brush assembly comprises a front rolling brush and a rear rolling brush arranged side by side in the rolling brush shell along the front-rear direction. The rotating directions of the front rolling brush and the rear rolling brush are opposite. The lower part of the front rolling brush and the lower part of the rear rolling brush form a garbage sweeping inlet. The front rolling brush comprises a front roller and a plurality of first cleaning components arranged on the front roller along the circumferential direction of the front roller. The first cleaning components extend discontinuously along the axial direction of the front roller. The rear rolling brush comprises a plurality of second cleaning components arranged on the rear roller along the circumferential direction. The second cleaning components extend continuously along the axial direction of the rear roller. The rolling brush mechanism provided by the embodiment can make small-volume garbage enter and remain in the garbage sweeping inlet, so that the rolling brush mechanism can sweep the garbage, thereby improving the cleaning effect.

Description

Technical Field

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

[0002] The applicant is aware of certain cleaning equipment whose roller brush mechanism uses two roller brushes working together to sweep debris into a dustbin. The two roller brushes are mounted inside a roller brush housing in a front-to-back direction. Both roller brushes have the same structure, including a roller and multiple sets of bristle tufts mounted on the roller. The bristle tufts are distributed circumferentially along the roller, while each individual bristle tuft extends axially along the roller. Within each individual bristle tuft, there are gaps between adjacent bristle tufts. The applicant has found that cleaning equipment using this roller brush mechanism consistently misses dust or other small-volume debris during the cleaning process. Summary of the Invention

[0003] To address the aforementioned shortcomings or defects, this invention provides a roller brush mechanism and cleaning device that makes it less likely to miss small-volume debris.

[0004] The roller brush mechanism provided by the present invention includes a roller brush shell, a roller brush assembly rotatably installed inside the roller brush shell, and a drive assembly for driving the roller brush assembly to rotate. The rear part of the roller brush shell is provided with a waste sweeping outlet, and the lower part of the roller brush shell is provided with an opening. The roller brush assembly includes a front roller brush and a rear roller brush arranged side by side in the roller brush shell along the front-to-back direction. The rotation directions of the front roller brush and the rear roller brush are opposite. The front roller brush and the rear roller brush expose the opening downwards. A waste sweeping inlet is formed between the lower parts of the front roller brush and the lower parts of the rear roller brush. The front roller brush includes a front roller and a plurality of first cleaning components arranged circumferentially on the front roller. The first cleaning components extend intermittently along the axial direction of the front roller. The rear roller brush includes a plurality of second cleaning components arranged circumferentially on the rear roller. The second cleaning components extend continuously along the axial direction of the rear roller.

[0005] In this invention, because the first cleaning component in the front roller brush extends intermittently along the axial direction of the front roller, small-volume debris can easily pass through the front roller brush and enter the debris sweeping inlet. The second cleaning component in the rear roller brush extends continuously along the axial direction of the rear roller, preventing small-volume debris from passing through the rear roller brush and keeping it in the debris sweeping inlet. This facilitates the roller brush mechanism in sweeping the debris in. Furthermore, because the roller brush mechanism sweeps the debris into the debris box through the front and rear roller brushes, rather than through a combination of a single roller brush and a blower, the noise generated by the blower is reduced, significantly lowering the noise emitted by the cleaning equipment.

[0006] Optionally, the second cleaning component is a strip of adhesive extending axially along the rear roller, and the number of such strips is greater than nine.

[0007] Optionally, the second cleaning component is a bristle array extending axially along the rear roller.

[0008] Optionally, the second cleaning component is a single set of rear brush bristles arranged along the axial direction of the rear roller, with adjacent rear brush bristles in the single set being arranged crosswise.

[0009] Optionally, the first cleaning component is a single set of front brush bristles arranged along the axial direction of the front roller, with adjacent front brush bristles spaced apart.

[0010] Optionally, the arrangement direction of the front brush bristles in the single set of front brush bristles is parallel to the axial direction of the front roller; the arrangement direction of the rear brush bristles in the single set of rear brush bristles is parallel to the axial direction of the rear roller.

[0011] Optionally, the lower part of the roller brush housing is provided with a flexible baffle, which is located behind the rear roller brush.

[0012] Optionally, the narrowest distance between the outer periphery of the front roller brush and the outer periphery of the rear roller brush is greater than 0 mm and less than or equal to 2 mm.

[0013] The cleaning device provided by the present invention includes a chassis, a drive wheel, a trash box, and the aforementioned roller brush mechanism mounted on the chassis, wherein the trash sweeping outlet of the roller brush shell is connected to the trash throwing inlet of the trash box.

[0014] Optionally, the outer periphery of the open end of the roller brush housing is provided with an outwardly extending mounting plate, and fasteners pass through the mounting plate and the chassis from bottom to top to fix the roller brush housing on the chassis.

[0015] Optionally, when the cleaning equipment is in operation, the lowest point of the roller brush assembly is higher than the lowest point of the drive wheel; the distance between the lowest point of the roller brush assembly and the lowest point of the drive wheel ranges from 0 mm to 1 mm.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a rear view of the roller brush mechanism;

[0019] Figure 2 This is a sectional view of the roller brush mechanism;

[0020] Figure 3 This is a bottom view of the roller brush mechanism;

[0021] Figure 4A diagram showing the combination of the roller brush mechanism and the trash can;

[0022] Figure 5 A top view of the cleaning equipment;

[0023] Figure 6 An exploded view of the cleaning equipment;

[0024] Figure 7 A side view of the cleaning equipment. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the invention.

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] like Figures 1 to 4 As shown, this embodiment provides a roller brush mechanism, including a roller brush housing 2, a roller brush assembly rotatably installed in the roller brush housing 2, and a drive assembly for driving the roller brush assembly to rotate. The rear part of the roller brush housing 2 is provided with a waste sweeping outlet 28, and the lower part of the roller brush housing 2 is provided with an opening. The roller brush assembly includes a front roller brush 3 and a rear roller brush 1 arranged side by side in the roller brush housing 2 in the front-to-back direction. The front roller brush 3 and the rear roller brush 1 rotate in opposite directions. The front roller brush 3 and the rear roller brush 1 expose the opening downwards. A waste sweeping inlet 27 is formed between the lower part of the front roller brush 3 and the lower part of the rear roller brush 1. The front roller brush includes a front roller 31 and a plurality of first cleaning components 32 arranged circumferentially on the front roller. The first cleaning components 32 extend intermittently along the axial direction of the front roller 31. The rear roller brush 1 includes a plurality of second cleaning components 11 arranged circumferentially on the rear roller 12. The second cleaning components 11 extend continuously along the axial direction of the rear roller 12.

[0029] Because the first cleaning component in the front roller brush extends intermittently along the axial direction of the front roller, small-volume debris can easily pass through the front roller brush and enter the debris sweeping inlet. Conversely, the second cleaning component in the rear roller brush extends continuously along the axial direction of the rear roller, preventing small-volume debris from passing through the rear roller brush and keeping it within the debris sweeping inlet, facilitating the sweeping mechanism's sweeping of the debris. Furthermore, since the sweeping mechanism sweeps debris into the debris bin using both the front and rear roller brushes, rather than a combination of a single roller brush and a blower, it reduces noise generated by the blower, significantly lowering the overall noise level of the cleaning equipment.

[0030] With the right side as the direction of movement of the cleaning equipment, when viewed from the right side of the cleaning equipment, the front roller brush rotates clockwise and the rear roller brush rotates counterclockwise. The front and rear roller brushes work together to sweep the garbage in.

[0031] The drive assembly includes a first motor 41, a second motor 42, a first transmission box 43, a second transmission box 44, a first belt (not shown in the figure), and a second belt (not shown in the figure). The first transmission box 43 and the second transmission box 44 are respectively installed on the left and right sides of the roller brush housing 2. The first motor 41 and the second motor 42 are located above the roller brush housing 2. The first motor 41 is installed on the first transmission box 43, and the second motor 42 is installed on the second transmission box 44. The first motor 41 is connected to the front roller brush 3 via a first belt drive, which is located inside the first transmission box 43. The second motor 42 is connected to the rear roller brush 1 via a second belt drive, which is located inside the second transmission box 44. The first belt and the second belt can also be replaced by a gear set.

[0032] The roller brush housing 2 is provided with a socket 26 for transferring power and control signals to the first motor 41 and the second motor 42 of the drive assembly. A sub-circuit board is located within the socket 26. The sub-circuit board is electrically connected to the main control board to receive communication signals and is also electrically connected to the battery to receive energy from the battery. The sub-circuit board is provided with a communication interface and a power interface for electrical connection to the control harnesses and power lines of the first and second motors. Compared to the direct connection of the first motor 41 and the second motor 42 to the power supply via wires and the direct connection to the main control board, this embodiment, by providing a socket on the roller brush housing, allows the first motor 41 and / or the second motor 42 to be removed without disassembling the entire cleaning equipment when they malfunction and need to be replaced or repaired.

[0033] The narrowest point of the distance between the outer periphery of the front roller brush 3 and the outer periphery of the rear roller brush 1 should be greater than 0 mm and less than or equal to 2 mm. For example, it can be 0.3 mm, 0.5 mm, 1 mm, 1.2 mm, 1.6 mm, 1.8 mm, and 2 mm. The narrowest point of the distance between the outer periphery of the front roller brush 3 and the outer periphery of the rear roller brush 1 is the distance between the centers of the front and rear roller brushes, minus the difference between their radii. If there is no gap between the front roller brush 3 and the rear roller brush 1, their bristles will easily become entangled due to crossing. If the distance between the front roller brush 3 and the rear roller brush 1 is too large, small debris will not be able to be swept up.

[0034] The diameters of the front roller brush 3 and the rear roller brush 1 range from 40mm to 70mm, for example, 40mm, 42mm, 46mm, 48mm, 50mm, 54mm, 56mm, 60mm, 63mm, 65mm, 68mm, and 70mm. The length of the second cleaning component 11 exposed on the surface of the rear roller 12 and the length of the first cleaning component 32 exposed on the surface of the front roller 31 both range from 10mm to 20mm, for example, 10mm, 12mm, 14mm, 15mm, 16mm, 17mm, 19mm, or 20mm.

[0035] By rationally setting the ratio of the exposed roller length to the roller radius of the cleaning components, the front and rear roller brushes are prevented from having too small a diameter, which would result in insufficient ground clearance for the chassis of the cleaning equipment, thus reducing the obstacle-crossing height of the cleaning equipment, and also prevent excessive gaps between the roller brushes and the brush housing, preventing them from contacting the debris. Conversely, the front and rear roller brushes are prevented from having too large a diameter, which would result in excessive exposed length of the cleaning components, thus reducing the sweeping force applied to the debris.

[0036] The front roller brush 3 rotates at a speed less than the rear roller brush 1. The front roller brush 3 rotates at a speed 1 / 4 to 1 / 2 less than the rear roller brush 1. The speed range of the rear roller brush 4 is 800 r / min to 1500 r / min. For example, the speed of the rear roller brush 4 can be 800 r / min, 900 r / min, 950 r / min, 1000 r / min, 1100 r / min, 1200 r / min, 1300 r / min, 1350 r / min, 1400 r / min or 1500 r / min.

[0037] By setting the rotation speed of the front roller brush to be a certain value lower than that of the rear roller brush, the backward force on the debris is greater than the forward force. This makes it less likely for the debris to be swept into the gap between the front and rear roller brush housings, and instead allows it to pass more smoothly through the gap between the rear and rear roller brush housings into the debris bin. This embodiment further optimizes the rotation speed of the roller brush assembly by adjusting the rear roller brush's speed, avoiding excessive noise from a high speed and insufficient sweeping force from a low speed, which would result in poor cleaning performance.

[0038] The distance between the front roller brush 3 and the roller brush housing 2 is greater than or equal to 0.8 mm and less than or equal to 2 mm. For example, the distance between the front roller brush 3 and the roller brush housing 2 can be 0.8 mm, 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, or 2 mm. By properly setting the distance between the front roller brush and the roller brush housing, the front roller brush can rotate smoothly within the roller brush housing, while preventing debris from falling back to the ground through the gap between the front roller brush and the roller brush housing.

[0039] The narrowest distance between the rear roller brush 1 and the roller brush housing 2 is greater than or equal to 3mm, and the widest distance between the rear roller brush and the roller brush housing is less than or equal to 10mm. By reasonably setting the distance between the rear roller brush and the roller brush housing, it is possible to ensure that the garbage can smoothly pass through the channel between the rear roller brush and the rear roller brush housing into the garbage box, while also preventing the bristles of the rear roller brush from failing to apply sufficient conveying force to the garbage.

[0040] The roller brush housing 2 includes a front roller brush housing 21 that houses the front roller brush 3, a rear roller brush housing 22 that houses the rear roller brush 1, a connecting housing 23 that smoothly connects the front roller brush housing 21 and the rear roller brush housing 22, and side plates 29 located on both sides of the front roller brush housing 21, the connecting housing 23, and the rear roller brush housing 22. The front roller brush housing 21 is arc-shaped, the rear roller brush housing 22 is an upwardly inclined plate, and the connecting housing 23 is a downwardly concave arc-shaped structure.

[0041] By setting a connecting shell that smoothly connects the front and rear roller brush shells, the protrusions formed by the direct extension connection between the front and rear roller brush shells are eliminated, preventing large-volume waste from getting caught in the protrusions and thus preventing large-volume waste from entering the waste box from the waste sweeping outlet of the roller brush shell.

[0042] The lower part of the roller brush housing 2 is provided with a flexible baffle 25, which is located behind the rear roller brush 1, that is, the baffle 25 is located near the garbage sweeping outlet 28 of the rear roller brush 1. In this way, even if some garbage, such as dust, leaks out from between the rear roller brushes, the baffle can block this garbage, so that the roller brush assembly can perform secondary cleaning.

[0043] Example 2

[0044] like Figures 2 to 4 As shown, the second cleaning component 11 provided in this embodiment is a single set of rear brush bristles arranged along the axial direction of the rear roller. The adjacent rear brush bristles in the single set are arranged crosswise, so that the gap between adjacent rear brush bristles in the single set is less than or equal to zero, so that the second cleaning component extends continuously along the axial direction of the rear roller.

[0045] It is worth noting that, since the rear brush tufts in a single set of rear brush tufts are implanted into the rear roller one by one, the gap between adjacent rear brush tufts in a single set of rear brush tufts is less than or equal to zero. This means that the gap between the upper parts of adjacent rear brush tufts in a single set of rear brush tufts is less than or equal to zero, but there is still a gap between the roots of adjacent rear brush tufts in a single set of rear brush tufts.

[0046] The rear roller 12 has bristle insertion holes, and the rear bristle tufts are installed in these holes. In a single bristle tuft set, the spacing between the insertion holes of adjacent bristle tufts ranges from 2mm to 4mm. The bristle tufts are installed on the roller by insertion; that is, insertion holes are first made on the roller, and then the bristle tufts are installed inside the insertion holes using metal sleeves. By properly setting the gap between the insertion holes, it is possible to prevent the hole walls from cracking due to excessively narrow spacing, which would affect the stability of the bristle tuft installation. Conversely, it is also possible to prevent gaps between the upper parts of adjacent bristle tufts due to excessively large spacing, which could lead to missed sweeping of debris.

[0047] The roller brush provided in this embodiment has 7 to 11 groups of bristle clusters, each group of bristle clusters includes 25 to 34 bristle clusters, and each bristle cluster includes 18 to 26 bristles.

[0048] To ensure that adjacent rear brush bristle clusters within a single set are arranged in a staggered manner, this embodiment provides two methods: one is to tilt the bristles in the rear brush bristle clusters towards both sides of the axial direction of the rear roller; the other is to provide bent portions on the bristles in the brush bristle clusters that bend towards both ends of the axial direction of the rear roller. These two methods can be used individually or together.

[0049] In the first method, the bristles in the rear brush tuft that are closer to the left end of the rear roller are inclined to the left, and the bristles that are closer to the right end are inclined to the right. The bristles closer to the left end of the rear brush tuft are inclined to the left more, and the bristles closer to the right end of the rear brush tuft are inclined to the right more. In the second method, the bristles on the rear brush tuft have at least one bent portion that bends towards the left end of the rear roller and one bent portion that bends towards the right end of the rear roller, in order to expand the axial coverage of a single bristle.

[0050] The first cleaning component 32 is mounted on a single set of front brush bristles on the front roller. Multiple front brush bristles in the single set are arranged axially along the front roller 31, with adjacent front brush bristles spaced apart. The front roller 31 is also provided with bristle insertion holes, and one front brush bristle tuft is installed in each insertion hole. The bristles in the front brush bristle tuft are arranged upright, for example, the bristles in the front brush bristle tuft extend radially along the front roller to ensure that there is a gap between adjacent front brush bristles in the single set.

[0051] Because the cleaning components on both the front and rear roller brushes are in the form of bristle tufts, the single set of front brush bristles of the front roller brush has a certain width along the circumference of the front roller, and the single set of rear brush bristles of the rear roller brush also has a certain width along the circumference of the rear roller. In this way, the front and rear roller brushes are not easily misaligned in the circumference and can always be in contact with the garbage, making it easier to sweep the garbage in. The two work together to improve the cleaning effect of the roller brush mechanism.

[0052] The arrangement direction of the front brush tuft 32 in the single front brush tuft is parallel to the axial direction of the front roller 31, and the arrangement direction of the rear brush tuft 12 in the single rear brush tuft is parallel to the axial direction of the rear roller 12. That is, both the single front brush tuft and the single rear brush tuft are arranged in a straight line. The garbage sweeping outlet 28 on the roller brush shell 2 is basically the same length as the single rear brush tuft along the axial direction of the rear roller 1.

[0053] In this embodiment, the single set of front brush bristles in the front roller brush is arranged in a straight line, and the single set of rear brush bristles in the rear roller brush is also arranged in a straight line. Compared with the arrangement of single set of brush bristles in a V-shape or wavy line, the multiple sets of front brush bristles in the front roller brush and the multiple sets of rear brush bristles in the rear roller brush can fully contact each other in the axial direction, so as to greatly improve the cleaning ability of the roller brush mechanism.

[0054] The diameter of the bristles in both the rear and front brush tufts is greater than or equal to 3mm. By appropriately setting the diameter range of the bristles in the rear and front brush tufts, the bristles have sufficient strength to ensure adequate sweeping force.

[0055] Example 3

[0056] The second cleaning component provided in this embodiment is a bristle row extending axially along the rear roller 12. The rear roller 12 is provided with a strip-shaped bristle planting groove extending axially. The bristle row is installed in the bristle planting groove by a metal sleeve, which is elongated. The bristle row actually includes multiple rows of bristles extending axially along the rear roller. Adjacent rows of bristles are arranged to cross each other along the axial direction of the rear roller, so that the bristle row as a whole extends continuously along the axial direction of the rear roller. That is, there are no gaps in the axial direction of a single bristle row, making it difficult for small-volume debris to pass through the rear roller brush. Multiple bristle rows are provided circumferentially along the rear roller.

[0057] When the second cleaning component 11 uses a bristle array that extends continuously along the roller, the first cleaning component 32 is also a single set of front bristle tufts mounted on the front roller. Multiple front bristle tufts in the single set are arranged axially along the front roller 31, with adjacent front bristle tufts spaced apart. The front roller 31 also has bristle insertion holes, each containing one front bristle tuft. The bristles in the front bristle tuft are arranged upright, for example, extending radially along the front roller, to ensure a gap between adjacent front bristle tufts in the single set.

[0058] Example 4

[0059] The second cleaning component provided in this embodiment is a strip-shaped rubber plate (not shown in the figure) extending axially along the rear roller 12. The rear roller 12 has an axially extending strip-shaped groove, and the rubber plate is installed in the groove. This embodiment utilizes the continuity of the rubber plate itself. Because the width of the rubber plate in the circumferential direction of the rear roller 12 is relatively small, when it is used in conjunction with the front roller brush which uses bristles as cleaning components, there are times when only one cleaning component of the roller brush is supporting the debris, resulting in the debris not being swept in due to insufficient support. This embodiment increases the number of rubber plates to reduce the gap between adjacent rubber plates in the circumferential direction of the rear roller, increasing the probability that the cleaning components on the front and rear roller brushes will apply support force to the debris at the same time. In the rear roller brush provided in this embodiment, the number of rubber plates is greater than or equal to 9, and preferably greater than or equal to 12.

[0060] When the second cleaning component 11 uses a rubber sheet, the first cleaning component 32 is also a single set of front brush bristles mounted on the front roller. Multiple front brush bristles in the single set are arranged axially along the front roller 31, with adjacent front brush bristles spaced apart. The front roller 31 also has bristle insertion holes, each containing one front brush bristle cluster. The bristles in the front brush bristle cluster are arranged upright, for example, extending radially along the front roller, to ensure a gap between adjacent front brush bristles in the single set.

[0061] Example 5

[0062] like Figures 5 to 7 As shown, this embodiment also provides a cleaning device, including a chassis 6, drive wheels 7, a dustbin 8, and a roller brush mechanism as described in Embodiment 2, all mounted on the chassis. The dust sweeping outlet of the roller brush housing 2 is connected to the dust throwing inlet of the dustbin 8. A central sweeping housing 63 for housing the roller brush mechanism is provided on the chassis 6.

[0063] The outer periphery of the open end of the roller brush housing 2 is provided with an outwardly extending mounting plate 24. The mounting plate 24 has multiple protrusions, and the chassis 6 has an upwardly recessed countersunk platform 61. Fasteners pass through the protrusions and countersunk platform 61 of the mounting plate 24 from bottom to top to fix the roller brush housing onto the chassis. The fasteners can be screws, and the mounting holes can be threaded holes.

[0064] After the cleaning equipment is assembled, the mounting plate of the roller brush mechanism fits snugly against the recessed platform of the chassis. The upward force transmitted by the roller brush mechanism under the support of the ground is transmitted to the recessed platform of the chassis. The direction of the upward force transmitted by the roller brush mechanism is the same as the installation direction of the fasteners, making the fasteners less likely to loosen, thus making the installation of the roller brush mechanism more stable.

[0065] When the cleaning equipment is in operation, the lowest point of the roller brush assembly is higher than the lowest point of the drive wheel 7; the distance between the lowest point of the roller brush assembly and the lowest point of the drive wheel 7 is no more than 1 mm. The chassis 6 is also equipped with a wheel housing 64 to accommodate the drive wheel 7. The distance between the drive wheel 7 and the chassis 6 can be adjusted by replacing the shims.

[0066] The lowest point of the roller brush assembly is higher than the lowest point of the drive wheel 7, meaning that there is a ground clearance between the front roller brush 3 and the rear roller brush 1 and the ground. This prevents the bristle tufts of the front and rear roller brushes from continuously contacting the ground, thereby reducing the noise generated by the roller brush mechanism during cleaning. At the same time, by controlling the maximum ground clearance, it is possible to prevent small-volume debris from being unable to be swept in due to excessive ground clearance of the roller brush assembly.

[0067] The cleaning equipment provided in this embodiment also includes two side brushes 9 installed at the front of the chassis 6 and a rolling and mopping mechanism located at the rear of the chassis. The two side brushes sweep the garbage on both sides of the forward direction of the cleaning equipment to the middle. The chassis 6 is provided with guide strips 62 to guide the garbage. The rolling brush mechanism then sweeps the garbage in the middle into the garbage box. The rolling and mopping mechanism wipes the ground after cleaning the garbage.

[0068] The above are merely preferred embodiments of this invention and are not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the protection scope of this invention.

Claims

1. A roller brush mechanism, comprising a roller brush housing, a roller brush assembly rotatably mounted within the roller brush housing, and a drive assembly for driving the roller brush assembly to rotate, wherein the rear of the roller brush housing is provided with a waste sweeping outlet, and the lower part of the roller brush housing is provided with an opening, characterized in that: The roller brush assembly includes a front roller brush and a rear roller brush arranged side by side in the roller brush housing along the front-to-back direction. The front roller brush and the rear roller brush rotate in opposite directions. The front roller brush and the rear roller brush expose the opening downwards. A garbage sweeping inlet is formed between the lower part of the front roller brush and the lower part of the rear roller brush. The front roller brush includes a front roller and a plurality of first cleaning components arranged circumferentially on the front roller. The first cleaning components extend intermittently along the axial direction of the front roller. The rear roller brush includes a plurality of second cleaning components arranged circumferentially on the rear roller. The second cleaning components extend continuously along the axial direction of the rear roller. The first cleaning component is a single set of front brush bristles arranged axially along the front roller. Adjacent front brush bristles in the single set are spaced apart. A flexible baffle is provided at the lower part of the roller brush shell. The baffle is located behind the rear roller brush. The narrowest distance between the outer periphery of the front roller brush and the outer periphery of the rear roller brush is greater than 0 mm and less than or equal to 2 mm. The rotational speed of the front roller brush is less than the rotational speed of the rear roller brush. The rotational speed of the front roller brush is 1 / 4 to 1 / 2 smaller than the rotational speed of the rear roller brush.

2. The roller brush mechanism according to claim 1, characterized in that, The second cleaning component is a rubber strip extending axially along the rear roller, and the number of rubber strips is greater than 9.

3. The roller brush mechanism according to claim 1, characterized in that, The second cleaning component is a bristle array extending axially along the rear roller.

4. The roller brush mechanism according to claim 1, characterized in that, The second cleaning component is a single set of rear brush bristles arranged along the axial direction of the rear roller, with adjacent rear brush bristles in the single set being arranged crosswise.

5. The roller brush mechanism according to claim 4, characterized in that, The arrangement direction of the front brush bristles in the single set of front brush bristles is parallel to the axial direction of the front roller, and the arrangement direction of the rear brush bristles in the single set of rear brush bristles is parallel to the axial direction of the rear roller.

6. A cleaning device, characterized in that, It includes a chassis, drive wheels mounted on the chassis, a trash can, and a roller brush mechanism as described in any one of claims 1 to 5, wherein the trash sweeping outlet of the roller brush housing is connected to the inlet of the trash can.

7. The cleaning equipment according to claim 6, characterized in that, The outer periphery of the open end of the roller brush housing is provided with an outwardly extending mounting plate. Fasteners pass through the mounting plate and the chassis from bottom to top, fixing the roller brush housing onto the chassis.

8. The cleaning equipment according to claim 6, characterized in that, When the cleaning equipment is in operation, the lowest point of the roller brush assembly is higher than the lowest point of the drive wheel; the distance between the lowest point of the roller brush assembly and the lowest point of the drive wheel ranges from 0 mm to 1 mm.

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