CN221060579U - Rolling brush mechanism and cleaning equipment - Google Patents

Abstract

The utility model provides a rolling brush mechanism and cleaning equipment, wherein the rolling brush mechanism 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, a garbage sweeping outlet is arranged at the rear part of the rolling brush shell, and an opening is arranged at the lower part of the rolling brush shell; the rolling brush assembly comprises a front rolling brush and a rear rolling brush which are arranged in the rolling brush shell side by side along the front-back direction, the rotation directions of the front rolling brush and the rear rolling brush are opposite, and a garbage sweeping inlet is formed between the lower part of the front rolling brush and the lower part of the rear rolling brush; the front rolling brush comprises a front roller and a plurality of first cleaning components which are arranged on the front roller along the circumferential direction of the front roller, the first cleaning components intermittently extend along the axial direction of the front roller, the rear rolling brush comprises a plurality of second cleaning components which are circumferentially arranged on the rear roller, and the second cleaning components continuously extend along the axial direction of the rear roller. The round brush mechanism that this embodiment provided can make small volume rubbish get into and keep sweeping the entry at rubbish, and the round brush mechanism of being convenient for sweeps into rubbish to improve and clean the effect.

Description

Rolling brush mechanism and cleaning equipment

Technical Field

The utility model belongs to the field of cleaning equipment, and particularly relates to a rolling brush mechanism and cleaning equipment.

Background

The roller brush mechanism of some cleaning devices known by the applicant sweeps garbage into a garbage box in a manner that two roller brushes are matched, and the two roller brushes are arranged in a roller brush shell along the front-rear direction. The two rolling brushes are of the same structure and comprise a roller and a plurality of groups of bristle clusters arranged on the roller, wherein the bristle clusters are distributed along the circumferential direction of the roller, and the bristle clusters of a single group extend along the axial direction of the roller. In a single group of bristle tufts, there are gaps between adjacent bristle tufts. The applicant has found that cleaning devices employing such a roller brush mechanism always miss dust or other small volumes of debris during the sweeping process.

Disclosure of Invention

In order to overcome the defects, the utility model provides a rolling brush mechanism and cleaning equipment which are not easy to leak and sweep small-volume garbage.

The utility model provides a rolling brush mechanism which comprises a rolling brush shell, a rolling brush assembly and a driving assembly, wherein the rolling brush assembly is rotatably arranged in the rolling brush shell, the driving assembly is used for driving the rolling brush assembly to rotate, a garbage sweeping outlet is formed in the rear part of the rolling brush shell, an opening is formed in the lower part of the rolling brush shell, the rolling brush assembly comprises a front rolling brush and a rear rolling brush which are arranged in the rolling brush shell side by side along the front-back direction, the rotation directions of the front rolling brush and the rear rolling brush are opposite, the front rolling brush and the rear rolling brush downwards expose the opening, and a garbage sweeping inlet is formed between the lower part of the front rolling brush and the lower part of the rear rolling brush; the front rolling brush comprises a front roller and a plurality of first cleaning components which are circumferentially arranged on the front roller along the front roller, the first cleaning components intermittently extend along the axial direction of the front roller, the rear rolling brush comprises a plurality of second cleaning components circumferentially arranged on the rear roller along the rear roller, and the second cleaning components continuously extend along the axial direction of the rear roller.

In the utility model, the first cleaning part in the front rolling brush intermittently extends along the axial direction of the front roller, so that small-volume garbage is convenient to pass through the front rolling brush and enter the garbage sweeping inlet, the second cleaning part in the rear rolling brush continuously extends along the axial direction of the rear roller, so that the small-volume garbage cannot pass through the rear rolling brush and is kept at the garbage sweeping inlet, and the rolling brush mechanism is convenient to sweep garbage into the garbage box.

Optionally, the second cleaning component is a rubber strip extending along the axial direction of the rear roller, and the number of the rubber strips is greater than 9.

Optionally, the second cleaning member is a bristle row extending axially along the rear drum.

Optionally, the second cleaning component is a single group of rear bristle tufts axially arranged along the rear roller, and adjacent rear bristle tufts in the single group of rear bristle tufts are arranged in a crossing manner.

Optionally, the first cleaning component is a single group of front bristle tufts axially arranged along the front roller, and adjacent front bristle tufts in the single group of front bristle tufts are arranged at intervals.

Optionally, the arrangement direction of the front bristle tufts in the single group of front bristle tufts is parallel to the axial direction of the front roller; the arrangement direction of the rear bristle tufts in the single-group rear bristle tufts is parallel to the axial direction of the rear roller.

Optionally, a flexible baffle is arranged at the lower part of the rolling brush shell, and the baffle is positioned at the rear of the rear rolling brush.

Optionally, the spacing between the narrowest part of the outer periphery of the front rolling brush and the outer periphery of the rear rolling brush is more than 0mm and less than or equal to 2mm.

The cleaning equipment provided by the utility model comprises a chassis, a driving wheel, a garbage box and the rolling brush mechanism, wherein the driving wheel, the garbage box and the rolling brush mechanism are arranged on the chassis, and a garbage sweeping outlet of the rolling brush shell is communicated with a garbage throwing inlet of the garbage box.

Optionally, an outwardly extending mounting plate is arranged at the periphery of the opening of the rolling brush shell, and a fastener penetrates through the mounting plate and the chassis from bottom to top to fixedly mount the rolling brush shell on the chassis.

Optionally, in the working state of the cleaning device, the lowest point of the rolling brush assembly is higher than the lowest point of the driving wheel; the distance between the lowest point of the roller brush assembly and the lowest point of the driving wheel ranges from 0mm to 1mm.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

FIG. 1 is a rear view of a roller brush mechanism;

FIG. 2 is a cross-sectional view of a roller brush mechanism;

FIG. 3 is a bottom view of the roller brush mechanism;

FIG. 4 is a combination view of the roller brush mechanism and the trash can;

FIG. 5 is a top view of the cleaning apparatus;

FIG. 6 is an exploded view of the cleaning apparatus;

Fig. 7 is a side view of the cleaning apparatus.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description is intended to illustrate and explain the utility model, and not to limit the utility model.

The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1 to 4, the present embodiment provides a roller brush mechanism comprising a roller brush housing 2, a roller brush assembly rotatably mounted in the roller brush housing 2 and a driving assembly for driving the roller brush assembly to rotate, a dust-sweeping outlet 28 being provided at the rear of the roller brush housing 2, an opening being provided at the lower part of the roller brush housing 2, the roller brush assembly comprising a front roller brush 3 and a rear roller brush 1 arranged side by side in the roller brush housing 2 in the front-rear direction, the rotation directions of the front roller brush 3 and the rear roller brush 1 being opposite, the front roller brush 3 and the rear roller brush 1 exposing the opening downward, a dust-sweeping inlet 27 being 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 comprising a front roller 31 and a plurality of first cleaning members 32 arranged circumferentially on the front roller, the first cleaning members 32 intermittently extending in the axial direction of the front roller 31, the rear roller brush 1 comprising a plurality of second cleaning members 12 arranged circumferentially on the rear roller 11, the second cleaning members 12 continuously extending in the axial direction of the rear roller 11.

Because the first cleaning component in the front rolling brush intermittently extends along the axial direction of the front roller, small-volume garbage is convenient to pass through the front rolling brush and enter the garbage sweeping inlet, and the second cleaning component in the rear rolling brush continuously extends along the axial direction of the rear roller, so that the small-volume garbage cannot pass through the rear rolling brush and is kept at the garbage sweeping inlet, and the rolling brush mechanism is convenient to sweep garbage in. In addition, the rolling brush mechanism sweeps garbage into the garbage box through the front rolling brush and the rear rolling brush instead of sweeping garbage into the garbage box through the combination of the single rolling brush and the fan, so that noise emitted by the fan is reduced, and noise emitted by cleaning equipment can be greatly reduced.

The right side is taken as the moving direction of the cleaning device, the front rolling brush rotates clockwise when seen from the right side of the cleaning device, the rear rolling brush rotates anticlockwise, and the front rolling brush and the rear rolling brush are matched to sweep garbage in.

The drive assembly includes a first motor 41, a second motor 42, a first gear box 43, a second gear box 44, a first belt (not shown) and a second belt (not shown). The first transmission case 43 and the second transmission case 44 are respectively installed at the left and right sides of the rolling brush housing 2, the first motor 41 and the second motor 42 are positioned above the rolling brush housing 2, the first motor 41 is respectively installed on the first transmission case 43, and the second motor 42 is installed on the second transmission case 44. The first motor 41 is in transmission connection with the front rolling brush 3 through a first belt, and the first belt is positioned in the first transmission box 43; the second motor 42 is in transmission connection with the rear rolling brush 1 through a second belt, and the second belt is positioned in a second transmission case 44. The first belt and the second belt may also be replaced with gear sets.

The rolling brush shell 2 is provided with a socket 26 for switching power supply and control signals to the first motor 41 and the second motor 42 of the driving assembly, a sub-circuit board is arranged in the socket 26 and is electrically connected with the electric control main board to receive communication signals, and the sub-circuit board is electrically connected with the battery to receive energy supply of the battery. The sub-circuit board is provided with a communication interface and a power interface, so that the first motor and/or the second motor can be detached without detaching the whole cleaning device when the first motor 41 and/or the second motor 42 breaks down and needs to be replaced or maintained by arranging the socket on the rolling brush shell in a mode that the control wiring harness and the power wires of the first motor and the second motor are electrically connected with the power source directly through the wires and a mode that the control wiring harness and the power wire are directly connected with the electric control main board relative to the first motor 41 and the second motor 42.

The spacing between the outer periphery of the front rolling brush 3 and the outer periphery of the rear rolling brush 1 at the narrowest point is greater than 0mm and less than or equal to 2mm, and may be, for example, 0.3mm, 0.5mm, 1mm, 1.2mm, 1.6mm, 1.8mm and 2mm. The distance between the narrowest part of the outer periphery of the front rolling brush 3 and the outer periphery of the rear rolling brush 1, namely the distance between the connecting line of the center of the front rolling brush and the center of the rear rolling brush, is subtracted by the difference value obtained by subtracting the radius of the front rolling brush from the radius of the rear rolling brush. If there is no gap between the front rolling brush 3 and the rear rolling brush 1, the bristle clusters of the front rolling brush 3 and the rear rolling brush 1 are easy to wind due to the crossing, and if the distance between the front rolling brush 3 and the rear rolling brush 1 is too large, the small-volume garbage can be prevented from being cleaned up.

The diameters of the front and rear roll brushes 3 and 1 range from 40mm to 70mm, and may be, for example, 40mm, 42mm, 46mm, 48mm, 50mm, 54mm, 56mm, 60mm, 63mm, 65mm, 68mm and 70mm. The length of the second cleaning member 12 exposing the surface of the rear drum 11 and the length of the first cleaning member 32 exposing the surface of the front drum 31 are each 10mm to 20mm, for example, 10mm, 12mm, 14mm, 15mm, 16mm, 17mm, 19mm or 20mm.

The cleaning component is reasonably arranged to expose the ratio of the length of the roller to the radius of the roller, so that the front rolling brush and the rear rolling brush cannot cause too small ground clearance of a chassis of the cleaning equipment due to too small diameter, thereby reducing the obstacle crossing height of the cleaning equipment and causing too large clearance between the rolling brush and the rolling brush shell to be incapable of contacting garbage; and the cleaning component can not reduce the sweeping force applied to the garbage due to the overlong exposed length because the diameters of the front rolling brush and the rear rolling brush are overlarge.

The rotation speed of the front rolling brush 3 is smaller than that of the rear rolling brush 1, the rotation speed of the front rolling brush 3 is 1/4 to 1/2 smaller than that of the rear rolling brush 1, the rotation speed of the rear rolling brush 4 ranges from 800r/min to 1500r/min, for example, the rotation speed of the rear rolling brush 4 can be 800r/min, 900r/min, 950r/min, 1000r/min, 1100r/min, 1200r/min, 1300r/min, 1350r/min, 1400r/min or 1500r/min.

The rotating speed of the front rolling brush is set to be smaller than the rotating speed of the rear rolling brush by a certain value, so that the rearward force applied to the garbage is larger than the forward force, and the garbage is not easy to sweep into a gap between the rolling brush shell and the front rolling brush, but more smoothly sweeps into the garbage box through the gap between the rear rolling brush and the rolling brush shell. According to the embodiment, the rotating speed of the rear rolling brush is set to be further reasonable, so that the situation that the noise is too large due to the fact that the rotating speed is larger is avoided, and the situation that the cleaning effect is poor due to the fact that the sweeping force of the rolling brush mechanism is insufficient due to the fact that the rotating speed is too small is avoided.

The distance between the front rolling brush 3 and the rolling brush shell 2 is more than or equal to 0.8mm and less than or equal to 2mm. The distance between the front roller brush 3 and the roller brush housing 2 may be, for example, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm or 2mm. Through reasonable setting of the interval between the front rolling brush and the rolling brush shell, the front rolling brush can smoothly rotate in the rolling brush shell, and garbage can be prevented from falling back to the ground through the gap between the front rolling brush and the rolling brush shell.

The spacing between the narrowest part of the rear rolling brush 1 and the rolling brush shell 2 is more than or equal to 3mm, and the spacing between the widest part of the rear rolling brush and the rolling brush shell is less than or equal to 10mm. Through the interval between reasonable setting back round brush and the round brush shell, both make rubbish can be smooth get into the rubbish box through the passageway between back round brush and the back round brush shell, can prevent again that the brush hair of back round brush can not exert sufficient conveying power to rubbish.

The roll brush housing 2 includes a front roll brush housing 21 accommodating the front roll brush 3, a rear roll brush housing 22 accommodating the rear roll brush 1, a connection housing 23 smoothly connecting the front roll brush housing 21 and the rear roll brush housing 22, and side plates 29 located at both sides of the front roll brush housing 21, the connection housing 23, and the rear roll brush housing 24. The front rolling brush housing 21 is arc-shaped, the rear rolling brush housing 22 is plate-shaped inclined upward, and the connecting housing 23 is arc-shaped recessed downward.

Through setting up the smooth junction front rolling brush shell and the junction housing of back rolling brush shell, eliminated the bulge that forms because of direct extension connection between front rolling brush shell and the back rolling brush shell, prevent that the bulge from hanging bulky rubbish, lead to bulky rubbish can not follow the rubbish of rolling brush shell and sweep the export and get into the rubbish box.

The lower part of the rolling brush shell 2 is provided with a flexible baffle curtain 25, the baffle curtain 25 is positioned behind the rear rolling brush 1, namely, the baffle curtain 25 is positioned at the position of the rear rolling brush 1 close to the garbage sweeping outlet 28. Thus, even if part of the garbage such as dust leaks out from between the rear rolling brushes, the baffle can block the garbage so as to facilitate the rolling brush assembly to clean the garbage secondarily.

Example 2

As shown in fig. 2 to 4, the second cleaning member 12 provided in this embodiment is a single group of rear bristle tufts arranged along the axial direction of the rear drum, and adjacent rear bristle tufts in the single group of rear bristle tufts are disposed to intersect with each other, so that the gap between the adjacent rear bristle tufts in the single group of rear bristle tufts is zero or less, so that the second cleaning member extends continuously along the axial direction of the rear drum.

It is noted that, because the rear bristle tufts of the single group are implanted into the rear roller one by one, the gap between the adjacent rear bristle tufts of the single group is smaller than or equal to zero, which means that the gap between the upper parts of the adjacent rear bristle tufts of the single group is smaller than or equal to zero, and the gap is still provided between the root parts of the adjacent rear bristle tufts of the single group.

The rear roller 11 is provided with implanted holes, the rear bristle tufts are arranged in the implanted holes, and the distance between the implanted holes of the adjacent bristle tufts is 2mm to 4mm in the single group of bristle tufts. The bristle clusters are arranged on the roller in a bristle implantation mode, namely, implantation holes are formed in the roller, and then the bristle clusters are arranged in the implantation holes through the metal sleeve. Through reasonable setting of the clearance between the pore of planting, can prevent to plant between the pore because the interval is too narrow, lead to the pore wall of planting the pore to break, and then influence the stability that the brush hair cluster was installed, can prevent again to plant between the pore because the interval is too big for have the clearance between adjacent brush hair cluster upper portion, lead to rubbish to leak and sweep.

The roller brush provided in this embodiment is provided with 7 to 11 groups of bristle tufts, each group of bristle tufts comprising 25 to 34 bristle tufts, each bristle tuft comprising 18 to 26 bristles.

In order to enable the adjacent rear bristle tufts in the single rear bristle tuft to be arranged in a crossed mode, two modes are provided in the embodiment, wherein the bristles in the rear bristle tufts are obliquely arranged towards the two axial sides of the rear roller, and the other mode is that bending parts bending towards the two axial ends of the rear roller are arranged on the bristles in the bristle tufts. The two modes can be used singly or together.

The axial end of the drum 11 is the left end, and the axial end of the drum is the right end. In the first mode, bristles in the rear bristle tufts, which are close to the left end of the rear drum, are inclined toward the left end, and bristles close to the right end are inclined toward the right end. The more the bristles in the rear bristle tuft, which are closer to the left end, are inclined to the left end, the more the bristles in the rear bristle tuft, which are closer to the right end of the rear drum, are inclined to the right end. In the second mode, the bristles on the rear bristle tufts have at least one bending part bending toward the left end of the rear drum and one bending part bending toward the right end of the rear drum, so as to enlarge the coverage of the single bristles in the axial direction.

The first cleaning member 32 is mounted on the front drum in a single set of front bristle tufts, a plurality of front bristle tufts among the single set of front bristle tufts being arranged in the axial direction of the front drum 31, adjacent front bristle tufts among the single set of front bristle tufts being spaced apart. The front roller 31 is also provided with a plurality of bristle holes, each bristle hole is internally provided with a front bristle cluster, and bristles in the front bristle clusters are vertically arranged, for example, the bristles in the front bristle clusters extend along the radial direction of the front roller so as to ensure that gaps exist between adjacent front bristle clusters in a single group of front bristle clusters.

Because the cleaning components on the front rolling brush and the rear rolling brush all adopt the form of bristle clusters, the single-group front bristle cluster of the front rolling brush has a certain width along the circumferential direction of the front roller, and the single-group rear bristle cluster of the rear rolling brush also has a certain width along the circumferential direction of the rear roller, the front rolling brush and the rear rolling brush are not easy to stagger in the circumferential direction, can always contact with garbage together, is convenient for sweeping garbage in, and the cleaning effect of the rolling brush mechanism is improved together by the cooperation of the front rolling brush and the rear rolling brush.

The arrangement direction of the front bristle tufts 32 in the single-group front bristle tufts is parallel to the axial direction of the front roller 31, and the arrangement direction of the rear bristle tufts 12 in the single-group rear bristle tufts is parallel to the axial direction of the rear roller 11, i.e. the single-group front bristle tufts and the single-group front bristle tufts are arranged in a straight line, and the garbage sweeping outlet 28 on the rolling brush shell 2 is basically equal to the single-group rear bristle tufts in the axial direction of the rear roller 1.

In the embodiment, the front bristle tufts of a single group in the front rolling brush are arranged in a straight line shape, and the rear bristle tufts of a single group in the rear rolling brush are also arranged in a straight line shape, so that the front bristle tufts of a plurality of groups of front bristle tufts of the front rolling brush and the rear bristle tufts of the rear rolling brush can be fully contacted in the axial direction in a manner of arranging the front bristle tufts of the single group in a V shape or wavy lines, and the cleaning capability of the rolling brush mechanism is greatly improved.

The diameter of the bristles in the rear bristle cluster and the front bristle cluster is more than or equal to 3mm. By properly setting the diameter ranges of the bristles in the rear bristle tufts and the front bristle tufts, the bristles are made strong enough to ensure that the bristles have sufficient sweeping force.

Example 3

The second cleaning component provided in this embodiment is a bristle row extending along the axial direction of the rear roller 11, the rear roller 11 is provided with a strip-shaped bristle planting groove extending along the axial direction, the bristle row is installed in the bristle planting groove through a metal sleeve, and the metal sleeve is in a strip shape. The bristle rows actually comprise a plurality of rows of bristles extending along the axial direction of the rear roller, and the bristles of adjacent rows are arranged in an axially crossed manner along the rear roller, so that the whole bristle row continuously extends along the axial direction of the rear roller, i.e. the whole bristle row has no gap in the axial direction of the rear roller, and small-volume garbage cannot easily pass through the rear roller brush. A plurality of bristle rows are circumferentially arranged on the rear roller.

Where the second cleaning member 12 employs a single set of bristles extending continuously along the drum, the first cleaning member 32 is also a single set of front bristle tufts mounted on the front drum, with a plurality of front bristle tufts in the single set of front bristle tufts being arranged axially of the front drum 31, with adjacent front bristle tufts in the single set of front bristle tufts being spaced apart. The front roller 31 is also provided with a plurality of bristle holes, each bristle hole is internally provided with a front bristle cluster, and bristles in the front bristle clusters are vertically arranged, for example, the bristles in the front bristle clusters extend along the radial direction of the front roller so as to ensure that gaps exist between adjacent front bristle clusters in a single group of front bristle clusters.

Example 4

The second cleaning component provided in this embodiment is a strip-shaped adhesive plate (not shown in the figure) extending along the axial direction of the rear roller 11, and a strip-shaped groove extending along the axial direction is arranged on the rear roller 11, and the adhesive plate is installed in the groove. This embodiment takes advantage of the continuity of the glue plate itself. Since the width of the rubber plate in the circumferential direction of the rear drum 11 is relatively small, when the rubber plate is cleaned in cooperation with the front rolling brush using the brush hair as the cleaning member, the cleaning member of only one rolling brush sometimes supports the garbage, so that the garbage cannot be cleaned in due to insufficient supporting force. In the embodiment, the number of the rubber plates is increased to reduce the gap between the adjacent rubber plates along the circumferential direction of the rear roller, so that the probability that the cleaning components on the front rolling brush and the rear rolling brush commonly apply supporting force to garbage at the same time is increased. In the rear rolling brush provided in this embodiment, the number of the glue plates is greater than or equal to 9, and most preferably greater than or equal to 12.

When the second cleaning member 12 is a rubber plate, the first cleaning member 32 is also a single set of front bristle tufts mounted on the front drum, a plurality of front bristle tufts in the single set of front bristle tufts being arranged in the axial direction of the front drum 31, adjacent front bristle tufts in the single set of front bristle tufts being spaced apart. The front roller 31 is also provided with a plurality of bristle holes, each bristle hole is internally provided with a front bristle cluster, and bristles in the front bristle clusters are vertically arranged, for example, the bristles in the front bristle clusters extend along the radial direction of the front roller so as to ensure that gaps exist between adjacent front bristle clusters in a single group of front bristle clusters.

Example 5

As shown in fig. 5 to 7, the present embodiment also provides a cleaning apparatus comprising a chassis 6, a drive wheel 7 mounted on the chassis, a waste bin 8 and a roller brush mechanism as described in example 2, the waste disposal outlet of the roller brush housing 2 being in communication with the waste disposal inlet of the waste bin 7. The chassis 6 is provided with a middle broom casing 63 for accommodating the rolling brush mechanism.

The periphery of the opening of the rolling brush shell 2 is provided with an outwardly extending mounting plate 24, the mounting plate 24 is provided with a plurality of convex columns, the chassis 6 is provided with an upwardly concave sinking platform 61, and the fastening piece sequentially penetrates through the convex columns and the sinking platform 61 of the mounting plate 24 from bottom to top to fixedly mount the rolling brush shell on the chassis. The fastener may be a screw and the mounting hole may be a threaded hole.

After the cleaning equipment is assembled, the mounting plate of the rolling brush mechanism is attached to the sinking platform of the chassis. The upward force of the rolling brush mechanism is transmitted to the sinking platform of the chassis after being supported by the ground, and the upward force of the rolling brush mechanism is the same as the installation direction of the fastening piece, so that the fastening piece is not easy to loosen, and the rolling brush mechanism is more stably installed.

In the operating state of the cleaning device, the lowest point of the rolling brush assembly is higher than the lowest point of the driving wheel 6; the distance between the lowest point of the roller brush assembly and the lowest point of the drive wheel 6 is not more than 1mm. The chassis 6 is further provided with a wheel housing 64 for housing the drive wheel 7. The distance between the driving wheel 6 and the chassis 1 can be adjusted by changing the shims.

The lowest point of the rolling brush assembly is higher than the lowest point of the driving wheel 6, namely, a ground clearance is formed between the front rolling brush 3 and the rear rolling brush 1 and the ground, so that bristle clusters of the front rolling brush and the rear rolling brush can not continuously contact with the ground, noise generated during cleaning of the rolling brush mechanism is reduced, and meanwhile, the phenomenon that small-volume garbage cannot be swept in due to overlarge height of the ground clearance of the rolling brush assembly can be avoided through controlling the maximum value of the ground clearance.

The cleaning device provided in this embodiment further includes two side brushes 9 installed in the front of the chassis 6 and a rolling and dragging mechanism located in the rear of the chassis, the two side brushes sweep the garbage on both sides of the advancing direction of the cleaning device to the middle, a guide strip 62 for guiding the garbage is arranged on the chassis 6, the rolling brush mechanism sweeps the garbage in the middle again to sweep into a garbage box, and the rolling and dragging mechanism wipes the ground after the garbage is cleaned.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather, it is contemplated that various modifications, equivalent arrangements, improvements or the like may be made within the spirit and principles of the present utility model.

Claims (12)

1. The utility model provides a round brush mechanism, includes round brush shell, rotates the round brush subassembly of installing in the round brush shell and is used for driving the pivoted drive assembly of round brush subassembly, and the rear portion of round brush shell is equipped with rubbish and sweeps the export, and the lower part of round brush shell is equipped with uncovered, its characterized in that:

The rolling brush assembly comprises a front rolling brush and a rear rolling brush which are arranged in the rolling brush shell side by side along the front-back direction, the rotation directions of the front rolling brush and the rear rolling brush are opposite, the front rolling brush and the rear rolling brush are downwards exposed out of the opening, and a garbage sweeping inlet is formed between the lower part of the front rolling brush and the lower part of the rear rolling brush;

The front rolling brush comprises a front roller and a plurality of first cleaning components which are circumferentially arranged on the front roller along the front roller, the first cleaning components intermittently extend along the axial direction of the front roller, the rear rolling brush comprises a plurality of second cleaning components circumferentially arranged on the rear roller along the rear roller, and the second cleaning components continuously extend along the axial direction of the rear roller.

2. The roll brush mechanism of claim 1, wherein the second cleaning member is a strip of glue extending axially along the rear drum, the number of strips being greater than 9.

3. The roll brush mechanism of claim 1, wherein the second cleaning member is a row of bristles extending axially along the rear drum.

4. The roll brush mechanism of claim 1, wherein the second cleaning member is a single set of rear bristle tufts axially aligned along the rear drum, adjacent ones of the single set of rear bristle tufts being disposed crosswise to one another.

5. The roll brush mechanism of claim 4, wherein the first cleaning member is a single set of front bristle tufts axially aligned along the front drum, adjacent ones of the single set of front bristle tufts being spaced apart.

6. The roll brush mechanism of claim 5, wherein the front bristle tufts of the single set of front bristle tufts are aligned parallel to the axial direction of the front roller; the arrangement direction of the rear bristle tufts in the single-group rear bristle tufts is parallel to the axial direction of the rear roller.

7. The roll brush mechanism of claim 1, wherein a flexible curtain is provided at a lower portion of the roll brush housing, the curtain being located rearward of the rear roll brush.

8. The roll brush mechanism according to any one of claims 1 to 4, wherein a pitch at a narrowest point between the outer periphery of the front roll brush and the outer periphery of the rear roll brush is greater than 0mm and equal to or less than 2mm.

9. A roller brush mechanism according to any one of claims 1 to 3, wherein the first cleaning member is a single set of front bristle tufts arranged axially along the front roller, adjacent ones of the single set of front bristle tufts being spaced apart.

10. A cleaning apparatus comprising a chassis, a drive wheel mounted on the chassis, a waste bin and a roller brush mechanism as claimed in any one of claims 1 to 9, the waste sweep outlet of the roller brush housing being in communication with the inlet of the waste bin.

11. The cleaning apparatus of claim 10, wherein an outwardly extending mounting plate is provided on an open periphery of the roller brush housing, and fasteners pass through the mounting plate and the chassis from bottom to top to fixedly mount the roller brush housing to the chassis.

12. A cleaning device according to claim 10, wherein the lowest point of the roller brush assembly is higher than the lowest point of the drive wheel when the cleaning device is in an operational state; the distance between the lowest point of the roller brush assembly and the lowest point of the driving wheel ranges from 0mm to 1mm.