CN216702442U - Floor cleaning device and cleaning head thereof - Google Patents

Abstract

The utility model relates to a floor cleaning device and a cleaning head thereof. A cleaning head for a floor cleaning device comprises a first and a second roller brush arranged parallel to each other; first and second motors for driving the first and second roll brushes, respectively, the first and second motors being disposed between the first and second roll brushes and driving the first and second roll brushes, respectively, through respective first and second transmissions; a dust suction port disposed between the first and second roll brushes and also between the first and second motors; first and second roll brushes are respectively installed on first and second rolls arranged independently of each other; the first and second rolling brushes are bidirectional rolling brushes with opposite rotating directions in operation; the first and second transmissions are arranged and operated independently of each other such that the rotation of the first and second roll brushes is driven independently of each other by the corresponding first and second transmissions. The double roll brushes of the present invention can work independently of each other and can be operated more reliably.

Description

Floor cleaning device and cleaning head thereof

Technical Field

The utility model relates to the technical field of household appliances, in particular to a novel cleaning head for a floor cleaning device and a floor cleaning device with the novel cleaning head, such as a vacuum cleaner, a sweeper, a scrubber, a sweeping and washing integrated machine and the like.

Background

Floor cleaning devices, such as floor mopping machines, vacuum cleaners or floor washers, are common household appliances whose cleaning function is performed by means of a so-called cleaning head or base, on which a roller brush assembly is usually arranged, comprising a roller brush and a transmission for driving the roller brush in rotation for floor cleaning.

CN201899443U discloses a floor brush for a dust collector, which comprises a floor brush base having a floor brush side wall, wherein the height h of the bottom of the floor brush side wall from the ground is less than 1 mm. The utility model improves the cleaning capability of the front and the side of the floor brush, improves the efficiency of the floor brush and has good dust collection effect particularly on corners and dead angles of a working environment.

CN201088545Y discloses a round brush device of full-automatic dust catcher, this round brush device install in the cavity of dust catcher bottom, the round brush device includes round brush main part, round brush motor, round brush lid, the output shaft of round brush motor set up main synchronous pulley, the round brush main part is equipped with from synchronous pulley, main synchronous pulley passes through the hold-in range and is connected with from synchronous pulley, install on the round brush is epaxial from synchronous pulley, the round brush lid is located the below of round brush main part the round brush main part on install the round brush strip of flexible material round brush lid rear end be equipped with the scrubbing brush strip of flexible material, the bottom surface is hugged closely to the scrubbing brush strip. CN201088545Y provides a roller brush device of a fully automatic dust collector, which effectively improves the dust collection capability of the dust collector and has good dust collection effect.

CN101305896A discloses a double rolling brush structure of brush head of vacuum cleaner, belonging to the structure of vacuum cleaner with tool for driving dust to loosen. CN101305896A discloses a cleaner brush head comprising a rectangular bottom shell forming a bottom profile; an upper cover integrated with the bottom case; a connecting pipe communicated with the inside of the shell is arranged in the center of the upper cover; the impeller is provided with a left belt pulley and a right belt pulley on supporting shafts at two ends respectively; the double-rolling brush structure is rotationally fixed on the bottom shell, is arranged in parallel with the impeller, rotates by the impeller to provide power to rotate and consists of a first rolling brush and a second rolling brush; and the left and right transmission belts are used for transmitting the rotation power of the impeller to the first rolling brush and the second rolling brush. Two rolling brushes with different rotating directions are realized on the same brush head, and the bidirectional rotating rolling brush can clean sundries lying on the ground more thoroughly when cleaning.

In the double-rolling brush structure of the brush head of the cleaner of CN101305896A, the double-rolling brush structure comprises a rectangular bottom shell 1 forming the bottom shape; an upper cover 2 integrated with the bottom case; the center of the upper cover 2 is provided with a connecting pipe 3 communicated with the inside of the shell; the impeller 4 is provided with a left belt pulley 7 and a right belt pulley 8 on supporting shafts at two ends; the double-rolling brush structure is rotationally fixed on the bottom shell, is arranged in parallel with the impeller 4, rotates by the rotation of the impeller 4 to provide power to rotate and is composed of a first rolling brush 9 and a second rolling brush 10; the left and right transmission belts 11 and 12 transmit the rotation power of the impeller 4 to the first rolling brush 9 and the second rolling brush 10; the first embodiment of the double-rolling brush structure may include a first rolling brush 9 and a second rolling brush 10 which are arranged on the bottom case 1 in parallel, wherein supporting shafts at two ends of the first rolling brush 9 and the second rolling brush 10 are respectively and rotatably fixed on the bottom case 1, and driven pulleys 13 and 14 are respectively arranged on a supporting shaft at the left side of the first rolling brush 9 and a supporting shaft at the right side of the second rolling brush 10; a left transmission belt 11 is wound around the left belt pulley 7 of the impeller 4 and the driven belt pulley 13 of the first rolling brush 9 in a crossed manner; a right transmission belt 12 is being wound around the right pulley 8 of the impeller 4 and the driven pulley 14 of the second round brush 10; the second embodiment of the double-rolling brush structure may also include a first rolling brush 15 and a second rolling brush 16 which are arranged on the bottom case 1 along the same axis, one end of the first rolling brush 15 is connected with one end of the second rolling brush 16 by an intermediate shaft 17, a supporting shaft at the other end of the first rolling brush 15 and a supporting shaft at the other end of the second rolling brush 16 are respectively and rotatably fixed on the bottom case 1, and driven pulleys 18 and 19 are respectively arranged on the supporting shaft at the other end of the first rolling brush 15 and the supporting shaft at the other end of the second rolling brush 16; the left driving belt 11 is wound around the left belt pulley 7 and the first rolling brush driven belt pulley 18 of the impeller 4 in a crossed manner; the right driving belt 12 is positively wound around the right belt pulley 8 of the impeller 4 and the second rolling brush driven belt pulley 19; or, the right belt pulley 8 and the second rolling brush driven belt pulley 19 of the impeller 4 are wound by the right transmission belt 12 in a cross way; the left drive belt 11 is being wrapped around the left pulley 7 of the impeller 4 and the first roller brush driven pulley 18. When the motor of the dust collector is started, the sucked air forces the impeller 4 to rotate (or the motor directly drives the impeller 4 to rotate), the left and right belt pulleys 7 and 8 arranged at the two ends of the impeller 4 drive the left and right transmission belts 11 and 12 to move, and the left and right transmission belts 11 and 12 are respectively wound on the driven belt pulleys of the first rolling brush and the second rolling brush in a crossed manner and are wound on the driven belt pulleys of the first rolling brush and the second rolling brush, so that the first rolling brush and the second rolling brush generate bidirectional rotation, and when the dust collector is cleaned, sundries lying on the ground to be cleaned are more thorough.

However, as taught by CN101305896A, the double roller brush forces the single impeller 4 to rotate by sucking air, or the single impeller 4 is directly driven to rotate by a motor. Moreover, the arrangement of the double roller brush and the driving and transmission devices thereof makes the transverse dimension of the double roller brush larger and the appearance of the double roller brush is not beautiful. In addition, the mode that the single impeller is respectively wound with the transmission belt in a positive winding mode and the transmission belt in a cross winding mode to drive the two rolling brushes is adopted, faults are very easy to occur, once one of the rolling brushes is blocked by foreign matters or other faults occur, the whole double-rolling-brush mechanism cannot work normally, and the reliability is poor.

Therefore, the prior art roll brush device has a large room for improvement in terms of cleaning efficiency, life span, and reliability.

Accordingly, as technology and applications have evolved and changed, there is a great need in the art for improved roller brush assemblies that overcome the above-mentioned deficiencies in the prior art, as well as other technical problems.

The information included in this background section of the present specification, including any references cited herein and any descriptions or discussions thereof, is included for technical reference purposes only and is not to be taken as subject matter which would limit the scope of the present invention.

SUMMERY OF THE UTILITY MODEL

In view of the above, as well as other further concepts and considerations, related concepts and designs of the utility model are set forth.

According to an aspect of the present invention there is provided a cleaner head for a floor cleaning appliance, comprising: first and second roll brushes arranged in parallel with each other; first and second motors for driving the first and second roll brushes, respectively, the first and second motors being disposed between the first and second roll brushes and driving the first and second roll brushes, respectively, through respective first and second transmissions; a dust suction port disposed between the first and second roll brushes and also between the first and second motors; the first and second roll brushes are respectively installed on first and second rollers arranged independently of each other; the first and second rolling brushes are bidirectional rolling brushes with opposite rotating directions in operation; and, the first and second transmissions are arranged and operated independently of each other, thereby enabling the rotation of the first and second roll brushes to be driven independently of each other by the corresponding first and second transmissions.

According to an embodiment, the longitudinal axes of the first and second roller brushes are substantially perpendicular to the direction of advance of the cleaning head during cleaning.

According to an embodiment, the first and second motors are arranged substantially in line with the suction opening in the direction of their longitudinal axis, wherein the first motor is arranged alongside the first roller brush near a first end of the first roller brush and the second motor is arranged alongside the second roller brush near a second end of the second roller brush opposite to the first end.

According to one embodiment, the cleaning opening is located at the approximate geometric centre of the cleaning head.

According to an embodiment, during operation of the cleaning head, the first and second roll brushes each rotate towards the suction opening, as seen from a bottom of the cleaning head.

According to an embodiment, said first and second transmission means are first and second belts independent of each other, and first and second pulleys independent of each other are provided at the ends of said first and second rollers, respectively.

According to one embodiment, an end cap with a locking piece is arranged at each of the two ends of the first and second rolling brushes, and the locking pieces are respectively used for locking the first and second rolling brushes.

According to one embodiment, a bottom cover is provided at the bottom of the cleaning head, the bottom cover being positioned to be recessed inwardly relative to the remainder of the bottom of the cleaning head, such that the bottom cover, together with the first and second roller brushes and the end cap, define a suction space in fluid communication with the suction opening when the cleaning head is performing a cleaning operation over a floor surface.

According to an embodiment, teeth are provided on the bottom cover at locations engaging the first and/or second rolling brush.

According to an embodiment, each of the locking pieces is configured to be detachably fitted on and pivotable about a pivot axis of a counterpart in the respective end cap, wherein the pivot axis extends in a direction substantially parallel to a longitudinal axis of the roller brush.

According to an embodiment, the tooth-shaped portion is comb teeth or saw teeth integrally formed on the bottom cover at a portion engaged with the roll brush; alternatively, the tooth part is an additional member with comb teeth or saw teeth detachably mounted on the bottom cover.

The utility model also discloses a ground cleaning device which comprises the cleaning head.

According to an embodiment, the floor cleaning unit further comprises a wand mounted on the cleaning head for hand-held guiding of the floor cleaning unit in a cleaning action.

According to an embodiment, the floor cleaning device is selected from one of a vacuum cleaner, a sweeper, a scrubber, a sweeping all-in-one machine, a sweeping robot, a scrubber robot and a sweeping all-in-one robot.

The dual-scroll brush arrangement of the present invention allows for operation in a more reliable and user-friendly manner. And two round brushes can work independently each other, and is more convenient nimble, even one of them round brush is out of order and can't normally work, another round brush can provide clean dust absorption function equally.

Further embodiments of the utility model are also capable of achieving other advantageous technical effects not listed, which other technical effects may be partially described below and which would be expected and understood by one skilled in the art after reading the present invention.

Drawings

The above features and advantages and other features and advantages of these embodiments, and the manner of attaining them, will become more apparent and the embodiments of the utility model will be better understood by reference to the following description taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic view of a cleaning head of a floor cleaning unit according to an embodiment of the utility model with two roller brushes according to an embodiment of the utility model in a normal assembled use.

Figure 2 shows a schematic exploded view of the cleaning head of figure 1 illustrating the roller brush, drive motor and arrangement thereof, and other configurations of the cleaning head.

Figure 3 shows a schematic view of the cleaner head of figure 1, viewed from the bottom, illustrating the assembly of the suction opening, the castor wheel and the base cap.

Detailed Description

The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the utility model will be apparent from the description and drawings, and from the claims.

It is to be understood that the embodiments illustrated and described are not limited in application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The illustrated embodiments are capable of other embodiments and of being practiced or of being carried out in various ways. Examples are provided by way of explanation of the disclosed embodiments, not limitation. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the scope or spirit of the disclosure. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Thus, the present disclosure covers such modifications and variations as come within the scope of the appended claims and their equivalents.

Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.

The utility model will be described in more detail below with reference to a number of specific embodiments of the utility model.

As shown in figures 1-2, a floor cleaning appliance, such as a hand-held cleaner, typically has a cleaner head 1 and a wand assembly 2 mounted to the cleaner head 1 for guiding the cleaning action of the floor cleaning appliance, such as a vacuum cleaner, by hand. Other components and/or mechanisms of other floor cleaning devices may optionally be mounted on the wand assembly 2, depending on the configuration and application.

As shown in fig. 1-2, the cleaning head 1 of this embodiment of the present invention employs two rolling brushes 14 arranged in parallel. The longitudinal axes of the two rolling brushes 14 are substantially perpendicular to the cleaning movement direction of the cleaning head 1, in which they are arranged in parallel one behind the other.

Each of the two rolling brushes 14 is mounted on a corresponding roller 16, and each rolling brush 14 may be provided with a separate motor 15 and each driving the rolling brush 14 by a separate transmission means, such as a belt 18. In this regard, as shown in fig. 2, the motor 15 drives the pulley 19 connected to the roller 16 through the belt 18 to drive the rolling brushes 14 mounted on the roller 16, and the motors and the transmission are independent of each other, so that the rolling brushes 14 are also driven independently of each other, so that the whole apparatus is less prone to malfunction, more robust, and more convenient and flexible to disassemble, repair, and replace. Another advantage of such a design is that even if one of the rolling brushes 14 fails and fails to work normally, the other rolling brush 14 can still work normally, so that the cleaning head 1 can still return to a normal cleaning function, and the reliability is higher and the user friendliness is better.

Of course, it will be understood by those skilled in the art that the motor 15 may drive the roller brush 14 through other transmission means, such as a gear transmission. This is within the scope of the utility model.

As shown in the figure, both motors 15 are arranged between the two rolling brushes 14, and are preferably arranged in line in the middle of the two rolling brushes 14.

The two motors 15 are preferably arranged in line along a center line of the cleaning head 1 parallel to the rolling brush 14, which facilitates the balance of the weight of the entire cleaning head 1, and also facilitates the maintenance of substantial movement and operational balance of the cleaning head 1 during operation, and contributes to noise and vibration reduction, due to the substantially symmetrical arrangement of the two motors and the two rolling brushes 14.

A suction opening 17 is also provided in the cleaner head 1, preferably in a substantially central portion thereof, and is arranged substantially in line with the two motors 15, as shown in figure 3.

The two rolling brushes 14 are preferably two-way rolling brushes with relative movement, i.e. the direction of rotation of the two rolling brushes 14 is opposite. More preferably, as shown in fig. 3, both of the roll brushes 14 are operated toward the dust suction opening 17 between the roll brushes 14 as viewed from the bottom of the cleaner head 1, i.e., both are rotated in a direction toward the dust suction opening 17. This not only facilitates more effective creation of a negative pressure in this region which is drawn towards the suction opening, but also facilitates the driving of dirt such as dust, debris entrained by the brush, driven or vacuumed towards the suction opening 17. Thus, even if dirt such as dust, debris, etc., which is leaked after the previous one of the roll brushes 14 is cleaned, it undergoes the secondary cleaning by the subsequent one of the roll brushes 14, and most of it is moved toward the dust suction port 17 by the relative rotation driving of the subsequent one of the roll brushes 14, so that the cleaning is more thorough.

At the bottom of the cleaner head 1 there may be provided a plurality of universal wheels 20, four universal wheels 20 as shown in figure 3, to facilitate the cleaning head 1 being propelled or otherwise driven across the floor surface for cleaning action.

For example, as shown in fig. 2, an end cap 13 is mounted at the tip position of the roll brush 14 for isolating it from the external environment of the cleaning head 1. Furthermore, for each roller brush 14 a locking piece 23 can be assigned, which locking piece 23 can be mounted, for example, in the region of the end, preferably on a counterpart, for example, of the respective end cap 13 and can be pivoted about a pivot axis of the counterpart, which extends substantially in a direction parallel to the longitudinal axis of the roller brush 14. When the lock piece 23 is fitted in place on the counterpart member, the end cap 13 is attached, and the corresponding roller brush 14 is locked/caught from the bottom of the cleaning head 1, and the roller brush 14 cannot be detached from the cleaning head 1. When the end cap 13 is removed and the locking pieces 23 at both ends are pulled out in the direction of the pivot axis of the pivot shaft, the roller brush 14 is released from the locking and can be removed from the cleaning head 1.

The cleaner head 1 may also be fitted with an upper cover 11 and a lower cover 21, as shown in figures 2-3. This not only contributes to the aesthetic appearance, integral outer profile and appearance of the entire cleaning head 1, but also to the formation of a relatively closed space which contributes to the maintenance of the suction under-pressure. For example, as shown in fig. 3, the bottom cover 21 is located more inward of the cleaning head 1 with respect to the roll brush 14 and other parts. In this way, on the one hand, obstruction by the bottom cover 21 against the floor during cleaning travel is avoided, and on the other hand, more importantly, a relatively closed space is formed with the floor, roller brush and end cap assembly during cleaning, facilitating the creation of a negative pressure in the cover space by means of suction from the suction opening 17. This not only facilitates the suction of dirt such as dust, debris, etc. from the space into the suction opening 17, but also facilitates the prevention of such dirt and debris from escaping out of the suction space and causing contamination during suction.

On the bottom cover 21, at a portion engaged with the drum brush 14, there may be provided teeth 22, such as comb teeth, saw-tooth structures, etc., which may be embedded into bristles on the drum brush 14 during rotation of the drum brush 14, and may clean large dirt, hair, etc., adhered to the drum brush 14. The tooth-shaped portion 22 may be of an integral construction with the bottom cover 21, i.e., an array of comb teeth, saw teeth integrally formed at an edge portion of the bottom cover 21 where the roll brush 14 is engaged; additional structure may be provided at the engagement portion of the bottom cover 21 with the drum brush 14, such as removable comb teeth or saw teeth attached to the bottom cover 21 by hook and loop fasteners.

A brush cover 12 may also be provided on the cleaner head 1 for partially covering the brush 14 and shielding dirt and water splashed by the brush 14 during operation, and the like.

The foregoing description of several embodiments of the utility model has been presented for the purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the utility model to the precise steps and/or forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. It is intended that the scope of the utility model and all equivalents be defined by the following claims.

Claims (14)

1. A cleaning head for a floor cleaning device comprising:

first and second roll brushes arranged in parallel with each other;

it is characterized in that the preparation method is characterized in that,

the cleaning head further comprises:

first and second motors for driving the first and second roll brushes, respectively, the first and second motors being disposed between the first and second roll brushes and driving the first and second roll brushes, respectively, through respective first and second transmissions; and

a dust suction port disposed between the first and second roll brushes and also between the first and second motors;

wherein the first and second roll brushes are mounted on first and second rollers, respectively, which are arranged independently of each other;

wherein the first and second rolling brushes are bidirectional rolling brushes which rotate in opposite directions during operation; and

wherein the first and second transmissions are arranged and operated independently of each other, such that the rotation of the first and second roll brushes is driven independently of each other by the corresponding first and second transmissions.

2. The cleaning head of claim 1 wherein the longitudinal axes of the first and second rolling brushes are perpendicular to the direction of advancement of the cleaning head during cleaning.

3. The cleaning head of claim 1, wherein the first and second motors are arranged in line with the suction opening along a direction of a longitudinal axis thereof, wherein the first motor is arranged side by side with the first roller brush and adjacent to a first end of the first roller brush, and the second motor is arranged side by side with the second roller brush and adjacent to a second end of the second roller brush opposite to the first end.

4. A cleaner head according to claim 1, wherein the suction opening is located at a substantially geometric centre of the cleaner head.

5. The cleaning head of claim 1, wherein the first and second roll brushes each rotate toward the suction opening as viewed from a bottom of the cleaning head during operation of the cleaning head.

6. A cleaning head according to any of claims 1-5, characterized in that the first and second transmission means are first and second belts independent of each other and that at the ends of the first and second rollers, respectively, first and second pulleys independent of each other are provided.

7. A cleaning head according to any of claims 1-5, characterized in that an end cap with a locking piece is provided at each end of the first and second roller brush, said locking pieces being adapted to lock the first and second roller brush, respectively.

8. A cleaning head according to claim 7, wherein each locking piece is configured to be detachably fitted on and pivotable about a pivot axis of a counterpart in the respective end cap, wherein the pivot axis extends in a direction parallel to the longitudinal axis of the roller brush.

9. The cleaner head of claim 7, wherein a bottom cover is provided at a bottom of the cleaner head, the bottom cover being positioned to be recessed relative to other portions of the bottom of the cleaner head such that the bottom cover, together with the first and second roller brushes and the end cap, define a suction plenum in fluid communication with the suction opening when the cleaner head is performing a cleaning operation on a floor surface.

10. A cleaning head according to claim 9, wherein teeth are provided on the sole cover at the locations where they engage with the first and/or second roller brushes.

11. The cleaning head of claim 10,

the tooth-shaped part is comb teeth or saw teeth which are integrally formed on the bottom cover at the part connected with the rolling brush; or

The tooth part is an additional member with comb teeth or saw teeth detachably mounted on the bottom cover.

12. A floor cleaning device, characterized in that it comprises a cleaning head according to any of claims 1-11.

13. A floor cleaning apparatus according to claim 12 further comprising a wand mounted on the cleaning head to guide the floor cleaning apparatus into a cleaning action in a hand.

14. A floor cleaning apparatus according to claim 12 or 13, wherein the floor cleaning apparatus is selected from one of a vacuum cleaner, sweeper, scrubber, sweeping all-in-one, sweeping robot, scrubber and sweeping all-in-one robot.

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