CN115590435A - Cleaning equipment and rolling brush module of cleaning equipment - Google Patents

Abstract

The disclosure relates to a cleaning device and a rolling brush module, wherein a front rolling brush and a rear rolling brush of the cleaning device are sequentially arranged on a machine body along the walking direction of the cleaning device, and the front rolling brush and the rear rolling brush are configured to rotate along opposite directions so as to bring garbage or sewage on a working surface into a garbage channel from bottom to top; the scraper is rotatably arranged on the machine body and positioned in the garbage channel, and is configured to have a movement trend of abutting against the rear rolling brush under the action of the elastic preload piece so as to obstruct garbage attached to the rear rolling brush in the garbage channel, the scraper can also obstruct/guide the garbage on the front rolling brush in the garbage channel to avoid secondary pollution caused by the garbage being brought into a working surface again, and the scraper has a movement trend of abutting against the rear rolling brush under the action of the elastic preload piece so as to automatically compensate a gap formed between the rear rolling brush and the scraper after being worn or the change of the radial size of the rear rolling brush before and after the rear rolling brush absorbs water and expands in real time, so that the scraper and the rear rolling brush are always in an abutting state.

Description

Cleaning equipment and rolling brush module of cleaning equipment

Technical Field

The utility model relates to a cleaning device's round brush technical field, specific round brush module that relates to a cleaning device and cleaning device.

Background

Cleaning device such as floor cleaning machine on the market at present, many logical water supply system drench the round brush, and the round brush is with the ground contact, transfers the round brush surface with the ground filth, and the rotation of rethread round brush is extruded with scraping the strip, scrapes the filth on round brush surface and receives dirty box department/water sucking mouth, inhales dirty chamber with sewage through the suction motor, realizes dirty recovery.

In order to guarantee the cleaning effect of the scraping strip on the rolling brush, the rolling brush and the scraping strip are all fixed interference magnitude, and the rolling brush and the scraping strip are in hard contact, the rolling brush is abraded due to long-time use, so that the interference magnitude of the rolling brush and the scraping strip is reduced, the rolling brush is dirty and cannot be scraped cleanly, cleaning force is reduced, and the service life of the rolling brush is shortened.

Disclosure of Invention

In order to solve the problems existing in the prior art, the present disclosure provides a cleaning device and a roll brush module of the cleaning device.

In a first aspect, the present disclosure provides a cleaning apparatus comprising:

a body;

the cleaning device comprises a machine body, a front rolling brush and a rear rolling brush, wherein the front rolling brush and the rear rolling brush are arranged on the machine body in a front-back mode along the walking direction of the cleaning device, a garbage channel is formed among the front rolling brush, the rear rolling brush and the machine body, and the front rolling brush and the rear rolling brush are configured to rotate in opposite directions so as to bring garbage or sewage on a working face into the garbage channel from bottom to top;

and the scraping plate is rotatably arranged on the machine body and positioned in the garbage channel, and is configured to have a movement tendency of abutting against the rear rolling brush under the action of the elastic preload piece so as to block the garbage attached to the rear rolling brush into the garbage channel.

In one embodiment, the front rolling brush and the rear rolling brush are tangent or partially overlapped in a radial direction.

In one embodiment, the rotational axis of the squeegee is located between the rotational axis of the front roll brush and the rotational axis of the rear roll brush, and the abutment of the squeegee with the rear roll brush is located between the rotational axis of the squeegee and the rotational axis of the rear roll brush.

In one embodiment, the abutment of the squeegee with the rear roll brush is located above a line connecting the rotation axis of the front roll brush and the rotation axis of the rear roll brush.

In one embodiment, the elastic preload piece is a tension spring, one end of the tension spring is arranged on the machine body, and the other end of the tension spring is arranged on the scraper.

In one embodiment, the tension spring is detachably connected with both the machine body and the scraper;

two tip of extension spring all are provided with the hangers, the extension spring passes through the hangers is connected the organism with on the scraper blade.

In one embodiment, the scraper extends in a direction of a rotation axis of the rear drum, and both end portions of the scraper are flush with or extend beyond the rear drum.

In one embodiment, the cleaning device comprises at least two elastic pre-tightening members, and the at least two elastic pre-tightening members are sequentially arranged at intervals along the rotating axis direction of the rear rolling brush.

In one embodiment, the front roller brush is a bristle roller brush, and/or the rear roller brush is a cloth roller brush.

In one embodiment, the cleaning apparatus further comprises:

and the water supply system is arranged on the machine body and is configured to spray clean water or clean water and detergent mixed liquid at least onto the working surface to be cleaned.

In one embodiment, the cleaning apparatus further comprises:

the scraper connecting plate is fixedly connected to the machine body, extends into the garbage channel and is provided with a rotating shaft part, and the scraper is connected to the rotating shaft part in a rotatable mode.

In one embodiment, the cleaning apparatus further comprises:

the spring connecting plate is fixedly connected to the plate surface of the machine body opposite to the garbage channel;

one end of the elastic preload piece is connected with the spring connecting plate, and the other end of the elastic preload piece penetrates through the machine body and extends into the garbage channel to be connected with the scraper.

In one embodiment, the scraper is disposed between the front roll brush and the rear roll brush, and the scraper is configured to block garbage thrown out when the front roll brush rotates.

In a second aspect, the present disclosure further provides a rolling brush module of a cleaning device, the rolling brush module of the present disclosure includes:

a rolling brush cover;

the front rolling brush and the rear rolling brush are sequentially arranged on the rolling brush cover along the walking direction of the cleaning equipment, a garbage channel is formed among the front rolling brush, the rear rolling brush and the rolling brush cover, and the front rolling brush and the rear rolling brush are configured to rotate along opposite directions so as to bring garbage or sewage on a working surface into the garbage channel from bottom to top;

and the scraping plate is rotatably arranged on the rolling brush cover and positioned in the garbage channel and is configured to have a movement tendency of abutting against the rear rolling brush under the action of the elastic preload piece so as to block the garbage attached to the rear rolling brush into the garbage channel.

In one embodiment, the abutment of the squeegee with the rear roll brush is located above a line connecting the rotation axis of the front roll brush and the rotation axis of the rear roll brush.

One of the beneficial effects of this disclosed cleaning device and clean module is, this disclosed cleaning device utilizes two round brushes around opposite direction of rotation to bring rubbish or sewage on the working face such as ground into the refuse chute, finally inhales the bilge tub or throws into the dust-collecting box. Meanwhile, the scraper blade separates the garbage attached to the rear rolling brush in the garbage channel, the scraper blade can also separate/guide the garbage on the front rolling brush in the garbage channel, the secondary pollution caused by the garbage is avoided being brought into the working surface again, the scraper blade has the motion trend of the abutment of the rear rolling brush under the action of the elastic pre-tightening piece, the gap formed between the rear rolling brush and the scraper blade after the abrasion of the rear rolling brush is automatically compensated, or the change of the radial size of the rear rolling brush before and after the water absorption expansion of the rear rolling brush, the scraper blade and the rear rolling brush are always in the abutting state, and the interference fit between the scraper blade and the rear rolling brush is ensured all the time.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic perspective view of a roll brush module of a cleaning apparatus according to the present disclosure in one embodiment;

FIG. 2 is a schematic front view of the roller brush module shown in FIG. 1;

fig. 3 is a schematic sectional view of the roll brush module shown in fig. 1.

Wherein, the one-to-one correspondence between each component name and reference number in fig. 1 to 3 is as follows:

10 rolling brush covers, 11 scraper connecting plates, 12 spring connecting plates, 2 front rolling brushes, 20 front rolling brush shafts, 21 rolling brush strips, 3 rear rolling brushes, 30 rear rolling brush shafts, 31 water-absorbing cleaning cloth, 4 scrapers, 5 driving motors, 6 tension springs, 7 dust collecting boxes and 8 garbage channels.

Detailed Description

Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Specific embodiments of the present disclosure are described below with reference to the accompanying drawings.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate relative positional relationships between relevant portions, and do not limit absolute positions of the relevant portions.

In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree and order of importance, the premise that each other exists, and the like.

In this context, "equal", "same", etc. are not strictly mathematical and/or geometric limitations, but also include tolerances as would be understood by a person skilled in the art and allowed for manufacturing or use, etc.

The present disclosure provides a cleaning apparatus including a body, a front roll brush, a rear roll brush, and a squeegee. The front rolling brush and the rear rolling brush are sequentially arranged on the machine body along the walking direction of the cleaning equipment, a garbage channel 8 is formed among the front rolling brush, the rear rolling brush and the machine body, and the front rolling brush and the rear rolling brush are configured to rotate in opposite directions so as to bring garbage or sewage on a working surface into the garbage channel 8 from bottom to top; the scraper is rotatably arranged on the machine body and positioned in the garbage channel 8, and is configured to have the motion tendency of abutting against the rear rolling brush under the action of an elastic preload piece so as to block the garbage attached to the rear rolling brush in the garbage channel 8.

Obviously, the cleaning device of the present disclosure uses two front and rear rolling brushes with opposite rotation directions to bring the garbage or sewage on the working surface such as the ground into the garbage channel 8, and finally the garbage or sewage is sucked into the sewage bucket or thrown into the dust collecting box. Meanwhile, the scraper blade will be attached to the rubbish separation on the back round brush in rubbish passageway 8, avoid it to be brought into the working face again and cause secondary pollution, and the scraper blade then has the motion trend of backward round brush butt under the effect of elasticity pretension piece to clearance that forms between its and the scraper blade after the automatic compensation back round brush wearing and tearing or back round brush absorb water and swell its radial dimension's change before and after, thereby make scraper blade and back round brush be in the butt state all the time, and then guaranteed that interference fit all the time between scraper blade and the back round brush.

For ease of understanding, the specific structure of the cleaning device of the present disclosure and its operating principle will be described in detail below with reference to fig. 1 to 3 in conjunction with a specific embodiment.

Referring to fig. 1 and 2, the cleaning apparatus of the present disclosure includes a body. In detail, in the embodiment, the machine body includes a rolling brush cover 10 and two end covers disposed at two ends of the rolling brush cover, the rolling brush cover 10 and the two end covers surround to form a cavity with an open lower portion, a part of the two rolling brushes is located in the cavity and is rotatably mounted between the two end covers, and a driving mechanism is further mounted on the rolling brush cover 10 and configured to drive the two rolling brushes to rotate in opposite directions to form a rolling brush module. To facilitate a better understanding of the structure of the cleaning device, please refer to fig. 3 together.

In addition, the machine body can also comprise a main body, functional components such as a water supply system, a sewage suction system and the like can be installed on the main body, and a rolling brush cover of the rolling brush module is also installed on the main body. The cleaning device may further include a traveling mechanism to travel the cleaning device and perform the cleaning work. The structure other than the rolling brush module is not limited herein, and those skilled in the art can select and assemble the rolling brush module based on the prior art.

The front roll brush 2 includes a front roll brush shaft 20 and a plurality of sets of roll brush bars. The front roller brush shaft 20 may be rotatably disposed between the two end caps by a rotation bearing or the like, and may be driven to rotate by a driving mechanism. The rotation axis of the front rolling brush shaft 20 is parallel to the rotation axis of the rear rolling brush shaft 30, and the two driving motors 5 are driven by a power transmission mechanism such as a gear reduction box to rotate in opposite directions respectively, and normally, the front rolling brush shaft 20 rotates clockwise, and the rear rolling brush shaft 30 rotates counterclockwise.

The multiple groups of rolling brush strips are sequentially arranged on the front rolling brush shaft 20 at intervals along the circumferential direction, each group of rolling brush strips comprises multiple rolling brush strips 21 which are sequentially arranged at intervals along the rotating axis of the front rolling brush shaft 20, the length of each rolling brush strip 21 extends along the radial direction of the front rolling brush shaft 20, a preset gap, tangency or partial overlapping position relation exists between the free end of each rolling brush strip and the surface of the rolling brush of the rear rolling brush 3, and the rolling brush strips 31 are hairs, plastic strips or silica gel strips and the like under the common condition. In one embodiment the rolling brush bar 31 is relatively thick and stiff animal hair, i.e. the front rolling brush is also referred to as a hair rolling brush.

The upper rolling brush strip 21 of the front rolling brush shaft 20 carries the garbage such as hair, thrum and the like on the working surface into the garbage channel 8 in the rotating process, and the garbage in the garbage channel 8 is thrown into the dust collecting box 7 at the front side of the front rolling brush 2 under the action of centrifugal force.

The rear roll brush 3 includes a rear roll brush shaft 30 and water-absorbent cloth 31. Wherein, the rear rolling brush shaft 30 is connected between the two end covers through elements such as a rotating bearing and the like, and is driven to rotate by a driving motor 5 arranged on the rolling brush cover 10 through a power transmission mechanism such as a gear reduction box and the like. The water-absorbing wiper 31 is a band-like member made of a material having a water-absorbing function such as cotton cloth or sponge. The water-absorbing cloth 31 is configured to be wound around the rear roller brush shaft 30 so that it then rotates with the roller brush shaft 30 and wipes off dirt on the work surface during the rotation. Since the water-absorbing cloth 31 is usually a cotton strip, the rear roll brush 3 is also called a cloth roll brush.

The front rolling brush 2 rotates clockwise, the rear rolling brush 3 rotates counterclockwise, and a garbage channel 8 is formed among the front rolling brush 2, the rear rolling brush 3 and the rolling brush cover 10. When the front rolling brush 2 and the rear rolling brush 3 rotate reversely, the front rolling brush 2 cleans the garbage on the working face backwards and lifts the garbage into the garbage channel 8 from bottom to top, and finally gets into the dust collecting box 7 on the front side of the front rolling brush. The back rolling brush 3 cleans the garbage on the working surface forwards, and lifts the garbage into the garbage channel 8 from bottom to top, and finally the garbage is thrown into the dust collection box 7 by the front rolling brush 2.

In the course of being lifted from below to the waste passage 8, the waste attached to the rear rolling brushes 3 can be thrown into the dust collecting container 7 better by means of the front rolling brushes 2. In this embodiment, the front roll brush 2 and the rear roll brush 3 are tangent or partially overlapped in the radial direction. So set up, when two round brushes rotate along opposite direction, in both tangency or partial overlap region, preceding round brush 2 can play the effect of peeling off, will be attached to the rubbish on back round brush 3 and peel off and throw into in the dust collection box 7.

However, some garbage which is not thrown into the dust collection box 7 by the front rolling brush 2 remains on the rear rolling brush 3, and the garbage continues to rotate to the rear of the cleaning device by the rear rolling brush 3, so that secondary pollution is caused to the cleaned working surface.

To this end, with continued reference to fig. 1 and 2, in the present embodiment, the cleaning apparatus further includes a scraper 4, the scraper 4 being rotatably disposed on the brush cover 10 and configured to have a tendency to abut against the rear brush 3 under the action of the elastic preload member to block the garbage attached to the rear brush 3 into the garbage passage 8.

Further, in the present embodiment, the abutment of the scraper 4 with the rear roll brush 3 is located above the line connecting the rotation axis of the front roll brush 2 and the rotation axis of the rear roll brush 3.

So set up, after the rubbish on the scraper blade 4 separation back round brush 3 made it break away from back round brush 3, rubbish can fall into on the front round brush 2 by virtue of the dead weight, and then is thrown into in the dust-collecting box 7 by virtue of the centrifugal force of front round brush 2.

With continued reference to fig. 2, the rotation axis c of the squeegee 4 is located between the rotation axis d of the front roll brush 2 and the rotation axis a of the rear roll brush 3, and the contact point b of the squeegee 4 with the rear roll brush 3 is located between the rotation axis c of the squeegee 4 and the rotation axis a of the rear roll brush 3.

So set up, can be when not taking the main refuse passage 8 of preceding round brush 2 top, the clear space installation scraper blade 4 on the round brush 3 behind the rational utilization makes cleaning device overall structure compacter.

In detail, the blade 4 is an elongated plate member extending along the rotational axis of the rear roller brush 3, and both end portions of the blade 4 are flush with or beyond the corresponding end portions of the rear roller brush 4.

So set up, back round brush 3 rotates the in-process, and scraper blade 4 can be with the whole round brush of back round brush 3 on the surface filth separation to rubbish passageway 8 in, avoided clean blind area, guaranteed cleaning equipment's cleaning efficiency.

As described above, the rolling brush cover 10 and the two end covers surround to form a cavity with an open lower portion, the two rolling brushes are partially disposed in the cavity and rotatably mounted between the two end covers, and the rolling brush cover 10, the front rolling brush 2 and the rear rolling brush 3 surround to form the garbage passage 8. And the rolling brush cover 10 is usually a thin-wall metal plate or a plastic piece, in order to install the scraper 4, in this embodiment, the machine body further includes a scraper connecting plate 11, the scraper connecting plate 11 is specifically a sheet metal piece bent into an L shape, the horizontal portion of the scraper connecting plate is fixedly connected to the rolling brush cover 10 through a fastener, welding, riveting or the like, the vertical portion of the scraper connecting plate extends into the garbage channel 8 and forms a rotating shaft portion, and the scraper 4 is rotatably connected to the rotating shaft portion.

In order to ensure that the scraper 4 is abutted against the surface of the rear rolling brush 3 in the whole axial direction, the machine body comprises two scraper connecting plates 11, the two scraper connecting plates 11 are arranged at two axial end parts of the scraper 4, and the two end parts of the scraper 4 are respectively and rotatably connected onto the scraper connecting plates 11 at the corresponding sides.

Referring to fig. 3, in this embodiment, the elastic preload member is a tension spring 6, one end of which is disposed on the body and the other end of which is disposed on the squeegee 4. In order to keep the scraper 4 always against the rolling surface of the rear roller brush 3, the connection point of the elastic preload member to the scraper 4 is located between the rotational axis of the rear roller brush 3 and the rotational axis of the scraper 4 to the machine body.

With such an arrangement, when the rear rolling brush 3 is changed from the wet expansion state to the dried contraction state or is abraded due to long-term friction with a working surface, under the action of the elastic force of the elastic preload piece, the rear rolling brush rotates around the rotation axis to compensate for the reduction of the radial dimension of the rear rolling brush 3 due to the state change or abrasion, so as to ensure that the scraper 4 always has the function of scraping off dirt on the rolling brush surface of the rear rolling brush 3. In addition, the free space formed between the rear roll brush 3 and the roll brush cover 10 can be reasonably used to install the squeegee 4 and the elastic preload member.

Referring to fig. 1 and 3, as mentioned above, the rolling brush cover 10 is usually a thin-walled sheet metal or plastic member, and in order to install the tension spring 6, in this embodiment, the machine body further includes a spring connecting plate 12, the spring connecting plate 12 is specifically an L-shaped sheet metal or plastic member, and a horizontal portion thereof is fixedly connected to an outer plate surface of the rolling brush cover 10, that is, an opposite plate surface of the plate surface where the garbage channel 8 of the rolling brush cover 10 is located, by means of a fastening member, welding, riveting, or the like. A rotating shaft part is formed on the vertical part, one end part of the tension spring 6 is arranged on the rotating shaft part of the spring connecting plate 12, and the other end part penetrates through the rolling brush cover 10 and is connected on the scraping plate 4.

So set up, can need not to occupy cleaning device's refuse passage 8's space, can utilize outside free space again, can realize the improvement to current round brush module, improve with low costsly.

In addition, in order to conveniently change extension spring 6, extension spring 6 all can be dismantled with organism and scraper blade 4 and be connected, in detail, two tip of extension spring 6 in this embodiment have the hangers, and extension spring 6 overlaps respectively to be established on the pivot portion of spring coupling plate 12, colludes in the mounting hole that sets up on scraper blade 4 through the hangers.

With continued reference to fig. 1, in this embodiment, the cleaning apparatus comprises at least two elastic pre-tightening members, which are arranged in sequence at intervals along the direction in which the rotational axis of the rear roll brush 3 extends.

So set up, can make scraper blade 4 all have two at least elastic force on the extending direction of the axis of rotation of back round brush 3, guaranteed the uniformity of scraper blade 4 and the round brush surface butt department magnitude of interference of back round brush 3.

With continued reference to fig. 2, the scraping blade 4 is disposed between the front and rear roll brushes 2 and 3, and the scraping blade 4 is configured to intercept trash thrown out when the front roll brush 2 rotates.

So set up, cleaning device during operation, the rubbish separation that throws away when scraper blade 4 will preceding round brush 2 rotates is in rubbish passageway 8, avoids these rubbish to be thrown away on back round brush 3 and caused secondary pollution on being driven the working face of cleaning process.

In addition, this disclosure still provides a cleaning device's clean module, this clean module package round brush lid, preceding round brush, back round brush and scraper blade, wherein, preceding round brush is used for cleaning device's organism to connect, also can with organism integrated into one piece. The front rolling brush and the rear rolling brush are arranged on the rolling brush cover in the front and back direction along the walking direction of the cleaning equipment, a garbage channel 8 is formed among the front rolling brush, the rear rolling brush and the rolling brush cover, and the front rolling brush and the rear rolling brush are configured to rotate in opposite directions so as to bring garbage or sewage on a working surface into the garbage channel 8 from bottom to top; the scraper is rotatably arranged on the rolling brush cover and positioned in the garbage channel 8, and is configured to have a movement tendency of being abutted against the rear rolling brush under the action of an elastic preload piece so as to block the garbage attached to the rear rolling brush into the garbage channel 8.

The rolling brush module has the structural features and the working principle of the cleaning device described in the foregoing, and those skilled in the art can fully understand and implement the technical solution based on the foregoing description, and the details are not described herein.

For better understanding, the working principle of the cleaning device and the rolling brush module of the present disclosure is described again below with reference to two application scenarios.

Application scenario one

In the first operating mode, the water supply system on the cleaning appliance is in a shut-down state or is not provided on the cleaning appliance, i.e. the first operating mode is a dry cleaning mode of the cleaning appliance. In this mode, referring to fig. 1 and 2, the front rolling brush 2 rotates clockwise to perform the broom sweeping function, dry garbage on the working surface to be cleaned is brought into the garbage channel 8 along the rotation direction and thrown into the dust collecting box 7 arranged in front of the front rolling brush 2, the rear rolling brush 3 rotates counterclockwise to perform the rag wiping function, and dry garbage remained after the front rolling brush sweeps on the working surface is wiped, thereby performing the secondary sweeping function.

At the same time, the scraper 4 abuts against the rear rolling brush 3 to block the dry garbage attached to the rear rolling brush 3 in the garbage passage 8, and then the dry garbage is brought into the dust collecting box 7 by the front rolling brush 2.

When the back round brush 3 wearing and tearing cause scraper blade 4 and back round brush 3 cooperation magnitude of interference between them to shrink, scraper blade 4 rotates to reaching preset cooperation magnitude of interference once more to the direction that is close to back round brush 3 under the effect of elasticity pretension piece, guarantees that scraper blade 4 possesses the function of separation rubbish throughout in the life of back round brush 3.

Application scenario two

In the second operating mode, the water supply system on the cleaning appliance sprays fresh water or a mixture of fresh water and cleaning agent onto the work surface to be cleaned, i.e. the second operating mode is the wet cleaning mode of the cleaning appliance. In this mode, referring to fig. 1 and 2, the front rolling brush 2 rotates clockwise to perform the function of sweeping the broom, wet garbage wetted by water on the working surface to be cleaned is brought into the garbage channel 8 along the rotation direction and thrown into the dust collecting box 7 installed in front of the front rolling brush 2, the rear rolling brush 3 rotates counterclockwise to perform the function of wiping rags, and the front rolling brush 2 wipes the residual wet garbage on the working surface to perform the function of secondary sweeping.

At the same time, the scraper 4 abuts against the rear rolling brush 3, and blocks the wet garbage attached to the rear rolling brush 3 in the garbage passage 8, and then the wet garbage is brought into the dust collecting box 7 by the front rolling brush 2. Or the scraper 4 extrudes the sewage on the rear rolling brush 3, so that the sewage flows onto the working surface along the garbage channel 8 and is sucked into the sewage bucket by the sewage suction mechanism or is thrown into the dust collection box 7 by the front rolling brush 2 by using centrifugal force. Or, can expand after back round brush 3 absorbs the sewage on the working face, the elastic force that the elasticity pretension piece was applyed can be overcome to scraper blade 4 and certain angle is rotated to the radial dimension's before and after the flexible adaptation back round brush 3 water absorption inflation variation, can avoid under this sight scraper blade 4 and back round brush 3 card to die the emergence that causes back round brush 3 malfunctioning problem.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the market, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims (15)

1. A cleaning device, characterized in that the cleaning device comprises:

a body;

the cleaning device comprises a front rolling brush (2) and a rear rolling brush (3), wherein the front rolling brush (2) and the rear rolling brush (3) are arranged on the machine body in the front and back direction of the traveling direction of the cleaning device, a garbage channel (8) is formed among the front rolling brush (2), the rear rolling brush (3) and the machine body, and the front rolling brush (2) and the rear rolling brush (3) are configured to rotate in opposite directions so as to bring garbage or sewage on a working surface into the garbage channel (8) from bottom to top;

a scraping plate (4) is rotatably arranged on the machine body and positioned in the garbage channel (8), and is configured to have a movement tendency of abutting against the rear rolling brush (3) under the action of an elastic preload piece so as to block the garbage attached to the rear rolling brush (3) into the garbage channel (8).

2. Cleaning device according to claim 1, characterized in that the front rolling brush (2) and the rear rolling brush (3) are radially tangent or partially overlap.

3. The cleaning apparatus according to claim 1, characterized in that the axis of rotation of the blade (4) is located between the axes of rotation of the front and rear roll brushes (2, 3), and the abutment of the blade (4) with the rear roll brush (3) is located between the axes of rotation of the blade (4) and the rear roll brush (3).

4. A cleaning apparatus according to claim 3, characterized in that the abutment of the blade (4) with the rear roller brush (3) is located above the line connecting the axis of rotation of the front roller brush (2) and the axis of rotation of the rear roller brush (3).

5. Cleaning device according to claim 1, characterized in that the elastic pretensioning element is a tension spring (6), one end of the tension spring (6) being arranged on the body and the other end being arranged on the blade (4).

6. Cleaning apparatus according to claim 5, characterized in that the tension spring (6) is detachably connected to both the machine body and the scraper (4);

two ends of the tension spring (6) are provided with hanging lugs, and the tension spring is connected to the machine body and the scraper (4) through the hanging lugs.

7. The cleaning apparatus according to claim 1, wherein the scraper (4) extends in a direction of a rotation axis of the rear roll brush (3), and both end portions of the scraper (4) are flush with the rear roll brush (3) or go beyond the rear roll brush (3).

8. A cleaning device according to claim 1, characterized in that the cleaning device comprises at least two of said elastic pre-tensioning members, which are arranged at a distance from each other in the direction of the axis of rotation of the rear roller brush (3).

9. A cleaning device according to claim 1, characterized in that the front roller brush (2) is a bristle roller brush and/or the rear roller brush (3) is a cloth roller brush.

10. The cleaning apparatus as recited in claim 1, further comprising:

and the water supply system is arranged on the machine body and is configured to spray clean water or clean water and detergent mixed liquid at least onto the working surface to be cleaned.

11. The cleaning apparatus as recited in claim 1, further comprising:

and the scraper connecting plate (11) is fixedly connected to the machine body, extends into the garbage channel (8) and is provided with a rotating shaft part, and the scraper (4) is connected to the rotating shaft part in a rotatable mode.

12. The cleaning apparatus of claim 1, further comprising:

the spring connecting plate (12) is fixedly connected to the plate surface of the machine body opposite to the garbage channel (8);

one end part of the elastic preload part is connected with the spring connecting plate (12), and the other end part of the elastic preload part penetrates through the machine body and extends into the garbage channel (8) to be connected with the scraping plate (4).

13. The cleaning apparatus according to claim 1, characterized in that the scraper (4) is arranged between the front roll brush (2) and the rear roll brush (3), and that the scraper (4) is configured to block refuse thrown off (2) when the front roll brush is rotated.

14. The utility model provides a cleaning device's round brush module which characterized in that, the round brush module includes:

a brush cover (10);

the cleaning device comprises a front rolling brush (2) and a rear rolling brush (3), wherein the front rolling brush (2) and the rear rolling brush (3) are sequentially arranged on a rolling brush cover (10) along the walking direction of the cleaning device, a garbage channel (8) is formed among the front rolling brush (2), the rear rolling brush (3) and the rolling brush cover (10), and the front rolling brush (2) and the rear rolling brush (3) are configured to rotate along opposite directions so as to bring garbage or sewage on a working surface into the garbage channel (8) from bottom to top;

a scraping plate (4) which is arranged on the rolling brush cover (10) in a rotatable manner and is positioned in the garbage channel (8), and is configured to have a movement tendency of abutting against the rear rolling brush (3) under the action of an elastic preload piece so as to block the garbage attached to the rear rolling brush (3) into the garbage channel (8).

15. A roller brush module according to claim 14, characterized in that the abutment of the scraper (4) with the rear roller brush (3) is located above the line connecting the axis of rotation of the front roller brush (2) and the axis of rotation of the rear roller brush (3).

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