CN108888177B

CN108888177B - Rolling brush assembly and cleaning device with same

Info

Publication number: CN108888177B
Application number: CN201810935305.XA
Authority: CN
Inventors: 刘海平; 邢振宇; 于宇; 顾德志; 薛烨炜
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2018-08-16
Filing date: 2018-08-16
Publication date: 2024-07-02
Anticipated expiration: 2038-08-16
Also published as: WO2020034806A1; CN108888177A

Abstract

The invention provides a rolling brush assembly, which comprises a first rolling brush and a second rolling brush which are adjacently arranged, wherein first bristles are arranged on the first rolling brush, second bristles are arranged on the second rolling brush, the first rolling brush and the second rolling brush respectively rotate around a first axis and a second axis in opposite directions under the drive of a motor, and the hardness of the first bristles is larger than that of the second bristles along the cleaning advancing direction of the rolling brush assembly when the first rolling brush is arranged in front and the second rolling brush is arranged behind. By providing the roller brush assembly with bristles behind the front bristles, it is ensured that the ground is cleaned of debris during its pushing.

Description

Rolling brush assembly and cleaning device with same

Technical Field

The invention belongs to the technical field of cleaning appliances, and particularly relates to a rolling brush assembly for a dust collector and the dust collector with the rolling brush assembly.

Background

The dust collector is a cleaning appliance for cleaning dust on floors, carpets, walls, furniture, clothes and various gaps. Generally, a vacuum cleaner mainly comprises a suction device and a suction pipeline, wherein the suction device mainly comprising a motor and a fan is arranged in a cleaner body, the suction pipeline comprises a suction head, a dust suction rigid pipe and a dust suction hose, and the suction head is provided with a suction port which is downwards opened and is communicated with an air inlet of the fan in the cleaner body through the dust suction rigid pipe and the dust suction hose.

The rolling brushes of the existing dust collector generally comprise two types, namely a single rolling brush and a double rolling brush, if the advancing direction of the sweeping robot is set to be the front, the working mode of the single rolling brush is as follows: the rotation direction of the rolling brush is the same as the rotation direction of the driving wheel when the sweeping robot advances, namely: when the sweeping robot walks forwards, the rolling brush cleans the garbage backwards. The double rolling brushes can adopt various working modes, for example, the rotation directions and the rotation speeds of the two rolling brushes can be set according to the needs.

The floor brushes with double rolling brushes are commonly arranged in the market in a mode of arranging the front fluff and the rear bristles, so that the floor brushes can clean garbage backwards during working, but can often cause the condition of uncleanness.

Accordingly, there is a need for further improvements over the prior art.

Disclosure of Invention

The invention aims to provide a rolling brush assembly which is cleaner to clean.

Another object of the present invention is to provide a cleaning device that cleans more cleanly.

In order to achieve the above object, the invention provides a rolling brush assembly, which comprises a first rolling brush and a second rolling brush which are adjacently arranged, wherein the first rolling brush is provided with first bristles, the second rolling brush is provided with second bristles, the first rolling brush and the second rolling brush are driven by a motor to rotate around a first axis and a second axis in opposite directions, respectively, and the hardness of the first bristles is higher than that of the second bristles along the cleaning travelling direction of the rolling brush assembly.

As a further improvement of an embodiment of the present invention, the first bristles include bristles and scraping strips, which are alternately arranged along the circumferential direction of the first roll brush, and the second bristles include bristles.

As a further improvement of an embodiment of the present invention, the first bristles are spaced apart from the second bristles.

The invention also relates to a cleaning device, which comprises a machine body, a negative pressure dust collection device arranged on the machine body and a roller arranged at the bottom of the machine body, wherein the machine body is also provided with the rolling brush assembly according to any one of the embodiments, the bottom of the machine body is provided with a dust collection opening, the dust collection opening is positioned between the first rolling brush and the second rolling brush, dust outlet channels communicated with the dust collection opening are arranged above and at the rear part of the second rolling brush, and dust is cleaned by the first rolling brush and the second rolling brush and is collected after entering the dust outlet channels from the dust collection opening under the action of the negative pressure dust collection device.

As a further improvement of an embodiment of the present invention, a partition is disposed at the bottom of the machine body, and the partition is located between the first rolling brush and the second rolling brush and divides the dust collection opening into a first dust collection opening corresponding to the first rolling brush and a second dust collection opening corresponding to the second rolling brush, where the first dust collection opening and the second dust collection opening are both communicated with the dust outlet channel.

As a further improvement of an embodiment of the invention, a baffle is arranged at the rear part of the first rolling brush, and the baffle extends downwards to a position adjacent to the first dust collection opening along the circumferential direction of the first rolling brush.

As a further improvement of an embodiment of the present invention, the partition is configured to be a first cambered surface and a second cambered surface corresponding to the first rolling brush and the second rolling brush, wherein the first cambered surface and the second cambered surface are respectively matched with the peripheries of the first rolling brush and the second rolling brush, an arc-shaped first dust collection channel is formed between the first cambered surface and the baffle, an arc-shaped second dust collection channel is formed between the second cambered surface and the periphery of the second rolling brush, the first dust collection channel is communicated with the first dust collection port and the dust outlet channel, and the second dust collection channel is communicated with the second dust collection port and the dust outlet channel.

As a further improvement of an embodiment of the invention, the machine body comprises a shell for accommodating the rolling brush assembly and a bottom plate arranged at the bottom of the shell, and an air deflector is arranged at the rear part of the second rolling brush and is supported between the shell and the bottom plate so as to guide the dust flowing out.

As a further improvement of an embodiment of the present invention, the air deflector has a plug-in portion that fits the second bristles, the plug-in portion including a plurality of teeth aligned in a direction parallel to the second axis, the plurality of teeth being at least partially inserted into the second bristles.

As a further improvement of an embodiment of the present invention, the wind deflector is configured in a herringbone shape, and includes a top, and a first extension end and a second extension end extending from the top to two sides, the plugging portion is disposed on the top, the first extension end is detachably connected with the housing, and the second extension end is abutted on the bottom plate.

Compared with the prior art, the roller brush provided by the invention has the advantages that the hardness of the first brush hair is set to be greater than that of the second brush hair, so that the first roller brush can sweep dust in the process that the roller brush assembly is pushed forward by the dust collector, large-particle garbage is swept backwards, the second roller brush is wiped with the ground, and the small-particle garbage and the garbage and dust missed by the first roller brush can be swept into a dust inlet and outlet channel together, so that the ground garbage can be swept cleanly in the pushing process.

Drawings

Figure 1 is a schematic cross-sectional view of a portion of a vacuum cleaner in accordance with a preferred embodiment of the present invention;

Figure 2 is an enlarged schematic view of part a of the cleaner of figure 1;

Figure 3 is a bottom view of the cleaner of figure 1;

figure 4 is a schematic perspective view of a portion of the cleaner of figure 1;

FIG. 5 is an exploded perspective view of a floor brush of the vacuum cleaner of FIG. 1;

FIG. 6 is a perspective view of a brush upper shell of the dust collection brush of FIG. 5;

FIG. 7 is a perspective view of the air deflector of the dust collection brush of FIG. 5;

FIG. 8 is a perspective view of an alternative view of the air deflector of the dust collection brush of FIG. 5;

fig. 9 is a schematic view illustrating the assembly of the air deflector of the dust collection brush of fig. 5 with the brush bottom case.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

It will be appreciated that terms such as "upper," "above," "lower," "below," and the like, as used herein, refer to spatially relative positions and are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The term spatially relative position may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

As shown in fig. 1-4, a preferred embodiment of the present invention is described. In this embodiment, the roller brush assembly is used for a dust collection floor brush, which may be used in an upright cleaner. The roller brush assembly 20 includes a first roller brush 21 and a second roller brush 22, which are disposed in tandem along a cleaning traveling direction (direction indicated by an arrow F) of the roller brush assembly 20, i.e., the first roller brush 21 is in front and the second roller brush 22 is in rear. The first rolling brush 21 is provided with first bristles, the second rolling brush 22 is provided with second bristles, the first rolling brush 21 and the second rolling brush 22 are driven by the motor to rotate around the first axis and the second axis in opposite directions, and the hardness of the first bristles is greater than that of the second bristles. Thus, in the process that the rolling brush assembly 20 is pushed forward by the dust collector, the first rolling brush 21 can sweep dust, large-particle garbage is swept backwards, the second rolling brush 22 is wiped with the ground, and small-particle garbage and the garbage and dust missed by the first rolling brush 21 can be swept into and out of the dust channel together, so that the cleaning of the ground in the pushing process can be ensured. The following description refers to the direction of travel of the roller brush assembly during cleaning.

Wherein, first round brush 21 includes first round brush roller, and first brush hair sets up on first round brush roller, and first axis is the axis of first round brush roller, and first brush hair includes brush hair 211 and scrapes strip 212, and brush hair 211 can be the hair or the brush hair, and brush hair 211 and scrape strip 212 along first round brush 21 circumference setting in turn, during operation, both can raise ash through brush hair 211, can gather dust through scraping strip 212 again, promotes cleaning performance. The second roller brush 22 includes a second roller brush roller on which second bristles are disposed, the second bristles including naps. The first bristles and the second bristles are arranged at intervals, that is to say, gaps are reserved between the first bristles and the second bristles, and direct contact cannot be generated. Of course, the first bristles and the second bristles may be in contact with each other or may be partially overlapped with each other, and cleaning of the ground may be performed.

The above-described roll brush assembly 20 may be used for various cleaning devices such as a dust collection brush of an upright cleaner, a dust collection brush of a canister cleaner, a dust collection brush of a portable cleaner, a robot cleaner/sweeper, etc. The dust collection floor brush will be specifically described below.

The dust collection floor brush comprises a floor brush shell 30, a rolling brush assembly 20 is supported on the floor brush shell 30, an air inlet is formed between a first rolling brush 21 and a second rolling brush 22, a dust outlet channel 12 communicated with the air inlet is formed above and at the rear of the second rolling brush 22, dust-containing air flow enters the dust outlet channel 12 from the air inlet, the dust outlet channel 12 is provided with an air outlet 121, an air deflector 35 is arranged at the rear of the second rolling brush 22, and the air deflector 35 is connected with the floor brush shell 30 and forms a part of the dust outlet channel 12, so that dust-containing air flow enters the dust outlet channel 12 from the air inlet and is discharged from the air outlet 121 along the air deflector 35. The air deflector 35 has an end portion closely contacting the second roller brush 22, and the end portion is configured as a socket portion 351 at least partially inserted into bristles of the second roller brush 22, not only improving dust separation ability, but also making a passage between the air inlet and the air outlet 121 more closed to guide a flow direction of the dust-containing air flow. Through the close contact of the air deflector 35 and the second rolling brush 22, the vacuum degree of the dust collection ground brush is improved, dust is cleaned by the first rolling brush 21 and the second rolling brush 22, and the dust is more thoroughly collected after entering the dust outlet channel 12 from the air inlet and being discharged from the air outlet 121, so that the ground is cleaned more cleanly. The second rolling brush 22 rotates anticlockwise along the arrow direction shown in fig. 2, and has the same trend as the dust-containing airflow, so as to assist in driving the airflow and the garbage into the dust-containing airflow. Through set up the air intake in the bottom of dust absorption scrubbing brush, the air intake is located between first round brush 21 and the second round brush 22, and the dusty air current passes the bottom of first round brush 21, between rethread first round brush and the second round brush, along the top of second round brush, along arrow direction entering air outlet 121, has constituted the wind channel structure of a high-efficient dust removal.

Referring to fig. 5 in combination with fig. 2, the floor brush housing 30 includes a floor brush upper case 31 accommodating the roll brush assembly 20 and a floor brush lower case 34 disposed at the bottom of the floor brush upper case 31, the dust outlet passage 12 is formed in the floor brush upper case 31, and the air deflector 35 is connected between the floor brush upper case 31 and the floor brush lower case 34 to guide the flow direction of the dust-containing air flow. Wherein, the grafting portion 351 of the air deflector 35 is positioned at one end contacting the second rolling brush 22, and the grafting portion 351 is at least partially inserted into the bristles of the second rolling brush 22. The engaging portion 351 includes a plurality of teeth arranged in a direction parallel to the second axis, or the engaging portion 351 has a plurality of teeth thereon, each extending in a direction perpendicular to the axial direction of the second roller brush 22, the plurality of teeth extending at least partially into the second bristles. Therefore, the second rolling brush 22 is tightly attached to the air deflector 35, the sealing performance of the dust outlet channel 12 is enhanced, and meanwhile, the plurality of teeth can also clean dust and sundries attached to the second brush hair, so that the cleaning effect of the second rolling brush 22 is enhanced.

In addition, the air deflector 35 further includes an arc portion extending from an end portion contacting the second rolling brush 22 toward the bottom of the second rolling brush 22, the arc portion being fitted to the outer circumferential shape of the second rolling brush. This structure can effectively enhance the dust separating ability of the second roller brush, so that the garbage is effectively separated and smoothly guided to the air outlet 121. In this embodiment, the air deflector 35 is preferably configured in a herringbone shape, and includes a top portion, and a first extension end 352 and a second extension end 353 extending from the top portion to two sides, wherein the first extension end 352 extends from an end portion contacting the second rolling brush 22 to a direction away from the second rolling brush 22, or extends toward the air outlet 121, the second extension end 353 extends from an end portion contacting the second rolling brush 22 to a bottom portion of the second rolling brush 22, the plugging portion 351 is disposed at the top portion, the first extension end 352 is detachably connected to the upper ground brush shell 31, and the second extension end 352 is connected to the lower ground brush shell 34. The end of the air deflector 35 contacting the second rolling brush 22 is approximately tangential to the outer circle of the second rolling brush 22, so that the dust separation capability of the second rolling brush 22 can be effectively improved, and the garbage can be effectively separated and smoothly guided to the air outlet of the dust outlet channel 12. Because the dust outlet air duct 12 at the position of the second rolling brush 22 and the air deflector 35 is smooth and smooth, in addition, the sectional area of the dust outlet air duct 12 from one end of the air deflector 35 contacted with the second rolling brush 22 to the air outlet 121 is gradually reduced, and meanwhile, the dust outlet air duct 12 is similar to a volute structure, so that the dust in the second rolling brush 22 can be effectively separated, the dust-containing air flow runs along the tangential direction of the dust outlet air duct 12, and the dust can be smoothly stripped by means of the rotation of the second rolling brush 22, so that the air flow disorder and dust separation are avoided.

Because the first rolling brush 21 and the second rolling brush 22 turn reversely, the second rolling brush 22 has two functions, one is used for blocking dust to sweep forward, and the other is used for wiping with the ground to play a role of sealing air, so that the dust enters the dust outlet air duct 12. Through the structure that adds aviation baffle 35 in the dust outlet direction of air duct 12 at second round brush 22 rear side to the aviation baffle is in depth to second round brush 22 inside and near tangent with second round brush 22 excircle, and aviation baffle 35 from the arc portion between the tip of contact second round brush 22 to second extension end 353 and the laminating of the excircle shape of second day round brush 22, this structure can effectively promote the dust separation ability of second round brush, makes the effective separation of rubbish and smoothly leads air outlet 121.

As shown in fig. 9 to 6, the edge of the air deflector 35 connected with the upper ground brush shell 31 is provided with a positioning flange 355, the upper ground brush shell 31 is provided with a first groove 315, the air deflector 35 is connected with the upper ground brush shell 31 through the cooperation of the positioning flange 355 and the first groove 315, and the tightness of the dust outlet channel 12 is enhanced through concave-convex cooperation. The brush lower case 34 is provided with a second groove 345, and the brush lower case 34 is connected to the air deflector 35 by the cooperation of the positioning flange 355 and the second groove 345. A positioning rib 356 is disposed between the first extension end 352 and the second extension end 353 and facing the ground brush lower case 34, a clamping groove 346 is disposed on the ground brush lower case 34, and the positioning rib 356 is fixed in the clamping groove 346.

When the vacuum cleaner is installed, the positioning flange 355 can be clamped in the first groove 315 of the upper ground brush shell 31, then the lower ground brush shell 34 is fixed on the air deflector 35, so that the positioning flange 355 of the air deflector is positioned in the second groove 345 of the lower ground brush shell 34, and the positioning ribs 356 on the air deflector 35 are fixed in the clamping grooves 346 on the lower ground brush shell 34 when the vacuum cleaner is installed and fixed in place, so that the air deflector can be reliably positioned along the direction parallel to the rotation axis of the first rolling brush or the second rolling brush, namely, the length extending direction of the air deflector, and the vacuum cleaner cannot shake when in operation.

Further, continuing to fig. 2, a partition piece 32 is disposed at the bottom of the ground brush housing 30, the partition piece 32 is located between the first rolling brush 21 and the second rolling brush 22 and divides the air inlet into a first air inlet 321 corresponding to the first rolling brush 21 and a second air inlet 322 corresponding to the second rolling brush 22, the first air inlet 321 and the second air inlet 322 are both communicated with the dust outlet channel 12, so that dust driven by the first rolling brush 21 enters the dust outlet channel 12 from the first air inlet 321, and dust driven by the second rolling brush 22 enters the dust outlet channel 12 from the second air inlet 322, namely, the dust is sucked and then collected together, so that the cleaning is more thorough.

In addition, a baffle 33 is provided at the rear of the first rolling brush 21, and the baffle 33 extends downward along the circumferential direction of the first rolling brush 21 to a position adjacent to the first air inlet 321. The two sides of the partition piece 32 corresponding to the first rolling brush 21 and the second rolling brush 22 are respectively configured into a first cambered surface 325 and a second cambered surface 326 which are matched with the peripheries of the first rolling brush 21 and the second rolling brush 22, an arc-shaped first dust collection channel 323 is formed between the first cambered surface 325 and the baffle 33, an arc-shaped second dust collection channel 324 is formed between the second cambered surface 326 and the periphery of the second rolling brush 22, the first dust collection channel 323 is communicated with the first air inlet 321 and the dust outlet channel 12, and the second dust collection channel 324 is communicated with the second air inlet 322 and the dust outlet channel 12. In this way, the dust cleaned by the first rolling brush 21 and the second rolling brush 22 passes through a section of dust collection channel and then is collected to the dust outlet channel 12, so that dust is prevented from being collected at the air inlet and can not be sucked.

The dust collection floor brush can be used for a vertical dust collector, the vertical dust collector also comprises a negative pressure dust collection device (not shown) arranged above the dust collection floor brush, and the bottom of the vertical dust collector can be provided with idler wheels 11 so as to facilitate pushing and advancing during dust collection operation. In addition, the dust collector further comprises a motor 50 arranged on the rolling brush assembly 20 and a transmission mechanism for connecting the motor 50 and the rolling brush assembly 20, and the motor 50 drives the first rolling brush 21 and the second rolling brush 22 to rotate in opposite directions through the transmission mechanism. The drive mechanism may include a belt drive, a gear drive, a sprocket drive, or the like. The motor 50 may also be an electric motor. Of course, the rolling brush assembly 20 is not limited to the above-mentioned dust collector, and may be used for cleaning devices such as a robot sweeper and a hand-held sweeper.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The cleaning device comprises a machine body, a negative pressure dust collection device arranged on the machine body and a roller arranged at the bottom of the machine body, and is characterized in that a roller brush assembly is further arranged on the machine body, the roller brush assembly comprises a first roller brush and a second roller brush which are adjacently arranged, first bristles are arranged on the first roller brush, second bristles are arranged on the second roller brush, the first roller brush and the second roller brush respectively rotate around a first axis and a second axis in opposite directions under the drive of a motor, and the hardness of the first bristles is higher than that of the second bristles after the second roller brush along the cleaning travelling direction of the roller brush assembly;

The bottom of the machine body is provided with a dust collection opening, the dust collection opening is positioned between the first rolling brush and the second rolling brush, a dust outlet channel communicated with the dust collection opening is arranged above and at the rear part of the second rolling brush, dust is cleaned by the first rolling brush and the second rolling brush, and is collected after entering the dust outlet channel from the dust collection opening under the action of the negative pressure dust collection device;

the machine body comprises a shell for accommodating the rolling brush assembly and a bottom plate arranged at the bottom of the shell, an air deflector is arranged at the rear part of the second rolling brush and is supported between the shell and the bottom plate to guide the dust to flow;

The air deflector is provided with an inserting part attached to the second bristles, the air deflector comprises a top, a first extending end and a second extending end, the first extending end and the second extending end extend from the top to two sides, the inserting part is arranged at the top, the first extending end is detachably connected with the shell, and the second extending end is abutted to the bottom plate; and one end of the air deflector, which is contacted with the second rolling brush, is approximately tangential with the outer circle of the second rolling brush.

2. The cleaning device of claim 1, wherein the first bristles comprise bristles and wiper strips, the bristles and wiper strips alternating in a first roll brush circumferential direction, and the second bristles comprise bristles.

3. The cleaning device of claim 1, wherein the first roller brush is spaced apart from the second roller brush.

4. A cleaning apparatus as claimed in claim 1, wherein,

The bottom of organism is equipped with the separator, the separator is located between first round brush and the second round brush and will the dust absorption mouth is cut apart into the first dust absorption mouth that corresponds with first round brush and the second dust absorption mouth that corresponds with the second round brush, first dust absorption mouth and second dust absorption mouth all with go out dirt passageway intercommunication.

5. The cleaning apparatus of claim 4, wherein the cleaning device comprises a cleaning device,

The rear part of the first rolling brush is provided with a baffle, and the baffle extends downwards from a shell containing the rolling brush assembly to a position close to the first dust collection opening along the circumferential direction of the first rolling brush.

6. The cleaning apparatus of claim 5, wherein the cleaning device comprises a cleaning device,

The partition piece corresponds the two sides of first round brush and second round brush are constructed to first cambered surface and the second cambered surface that matches with first round brush and second round brush periphery respectively, form curved first dust absorption passageway between first cambered surface and the baffle, form curved second dust absorption passageway between second cambered surface and the second round brush periphery, first dust absorption passageway intercommunication first dust absorption mouth and play dirt passageway, second dust absorption passageway intercommunication second dust absorption mouth and play dirt passageway.

7. A cleaning apparatus as claimed in claim 1, wherein,

The socket portion includes a plurality of teeth aligned in a direction parallel to the second axis, the plurality of teeth being at least partially inserted into the second bristles.

8. The cleaning apparatus of claim 7, wherein the cleaning apparatus comprises a cleaning device,

The air deflector is constructed in a herringbone shape.