WO2025102200A1 - Floor brush assembly and cleaning machine - Google Patents

Abstract

A floor brush assembly and a cleaning machine. The floor brush assembly comprises a housing (100), a first rolling brush (510) and a second rolling brush (520); two ends of the first rolling brush (510) are respectively connected to a first end of a first connection member (310) and a second end of a second connection member (320), and the second end of the second connection member (320) is rotatably connected to a first end of a fourth connection member (420); the first connection member (310) and the fourth connection member (420) can rotate about a first axis, so as to drive the first rolling brush (510) to rotate about the first axis; two ends of the second rolling brush (520) are respectively connected to a first end of a third connection member (410) and a first end of the second connection member (320), and a second end of the third connection member (410) is rotatably connected to the first end of the first connection member (310), such that the third connection member (410) can rotate about a second axis; the second connection member (320) and the third connection member (410) can rotate about the second axis, so as to drive the second rolling brush (520) to rotate about the second axis. The floor brush assembly and the cleaning machine can ensure that the first rolling brush (510) and the second rolling brush (520) can flexibly make contact with surfaces to be cleaned, and during operation, the adaptability of the rolling brushes to said surfaces is high, thus solving the problem of inability to independently adjust the height of rolling brushes of a cleaning machine having a double-rolling-brush structure.

Description

A floor brush assembly and cleaning machine Technical Field

The present invention relates to the technical field of cleaning equipment, and in particular to a floor brush assembly and a cleaning machine.

Background Art

Carpet cleaning machines are widely used as cleaning tools in homes and hotels, especially double-roller brush carpet cleaning machines, which have good cleaning effects. Currently, double-roller brushes are generally used in carpet cleaning machines in two structures:

The first structure is a fixed roller brush, which is fixed relative to the base. However, in different working environments, the depth of the roller brush sinking into the carpet hair is different. For long-haired carpets, the roller brush load is too large, and the motor heats up too high, which affects the service life of the carpet cleaning machine. The second structure is a floating roller brush, which can rotate relative to a point, and the floor brush can adjust the roller comb angle according to the position of the carpet. However, this method will result in one roller brush working normally while the other roller brush is separated from the carpet surface, which does not achieve the effect of a double roller brush. How to set up a structure that can individually adjust the height of each roller brush has become an urgent problem to be solved.

Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a floor brush assembly and a cleaning machine to solve the problem that a cleaning machine with a double roller brush structure cannot adjust the height of each roller brush individually.

A first aspect of the present invention provides a floor brush assembly, comprising a housing, a first roller brush and a second roller brush, wherein the first roller brush and the second roller brush are installed in parallel in the housing, the first roller brush is arranged on a second axis and rotates around the second axis, and the second roller brush is arranged on a third axis and rotates around the third axis; characterized in that the floor brush assembly further comprises:

a first rotating mechanism, the first rotating mechanism being rotatably disposed in the housing around a first axis and connected to the first roller brush, so that the first roller brush can rotate around the first axis following the first rotating mechanism; and

The second rotating mechanism is rotatably arranged on the first rotating mechanism around a second axis and connected to the second roller brush, so that the second roller brush can rotate around the second axis following the second rotating mechanism, and the first axis is parallel to the second axis and the third axis.

In a feasible implementation, the first rotating mechanism includes a first connecting member and a fourth connecting member, and the second rotating mechanism includes a second connecting member and a third connecting member; wherein,

The second end of the first connecting member and the second end of the fourth connecting member are rotatably connected to the housing;

The second end of the second connecting member is rotatably connected to the first end of the fourth connecting member, and the second end of the third connecting member is rotatably connected to the first end of the first connecting member.

In a feasible implementation, the first end of the first connecting member is fixed to one end of the first roller brush, and the first end of the fourth connecting member is fixed to the other end of the first roller brush through the second end of the second connecting member;

The first end of the second connecting member is fixed to one end of the second roller brush, and the first end of the third connecting member is fixed to the other end of the second roller brush.

In a feasible implementation, a first boss is provided at a first end of the first connecting member at a side away from the first roller brush, a first through hole is provided at a second end of the third connecting member, and the first boss is rotatably inserted into the first through hole;

Wherein, the floor brush assembly further includes a first limiting member, which is fixed to one end of the first boss passing through the first through hole, and is used to limit the third connecting member to the first boss.

In a feasible implementation, a second boss is provided at the second end of the second connecting member on a side away from the first roller brush, a second through hole is provided at the first end of the fourth connecting member, and the second boss is rotatably inserted into the second through hole;

Wherein, the floor brush assembly further includes a second limiting member, which is fixed to one end of the second boss passing through the second through hole, and is used to limit the fourth connecting member to the second boss.

In a feasible implementation, the floor brush assembly further includes a first mounting bracket and a second mounting bracket, the first mounting bracket and the second mounting bracket are arranged in parallel and at intervals on the housing, and the first rotating mechanism is rotatably connected to the first mounting bracket and the second mounting bracket in the housing around a first axis;

The first roller brush is in transmission connection with a driving mechanism provided on one of the first mounting bracket and the second mounting bracket.

In a feasible implementation, the driving mechanism is arranged on the first mounting bracket, and the driving mechanism includes a pulley, a belt and a transmission shaft. The pulley is connected to the transmission shaft, one end of the first roller brush is connected to the pulley through the belt, and the other end of the first roller brush is connected to the second roller brush through a synchronous belt, driving the second roller brush to rotate synchronously.

The rotating structure comprises a rotating shaft arranged on the fourth connecting member and a column hole arranged in the second mounting bracket; the rotating shaft and the column hole are rotatably matched.

In a feasible implementation, the first connecting member is provided with a first fixing seat on a side close to the first rolling brush, the second connecting member is provided with a second fixing seat and a third fixing seat at intervals on a side close to the second rolling brush, and the third connecting member is provided with a fourth fixing seat on a side close to the second rolling brush;

The first rotating shaft is penetrated by the first rolling brush along the length direction of the first rolling brush and has two ends fixedly connected to the first fixing seat and the second fixing seat respectively, the first rolling brush is rotatably mounted on the first rotating shaft, and the first rotating shaft is arranged on the second axis; the second rotating shaft is penetrated by the second rolling brush along the length direction of the second rolling brush and has two ends fixedly connected to the third fixing seat and the fourth fixing seat respectively, the second rolling brush is rotatably mounted on the second rotating shaft, and the second rotating shaft is arranged on the third axis.

In a feasible implementation, the driving mechanism and the rotating structure are arranged on the first axis, and the first rotating shaft is arranged on the second axis.

In a feasible implementation, a first arc-shaped groove is provided on the second end of the third connecting member, and a first arc-shaped chamfer adapted to the first arc-shaped groove is provided on the first end of the first connecting member; a second arc-shaped groove is provided on the first end of the fourth connecting member, and a second arc-shaped chamfer adapted to the second arc-shaped groove is provided on the second end of the second connecting member.

A second aspect of the present invention provides a cleaning machine, comprising the floor brush assembly described in the first aspect.

The implementation of the present invention has the following beneficial effects:

The floor brush assembly and cleaning machine provided by the present invention, the first connecting member and the fourth connecting member can rotate around the first axis, driving the first roller brush to rotate around the first axis; the second connecting member and the third connecting member can rotate around the second axis, driving the second roller brush to rotate around the second axis, ensuring that the first roller brush and the second roller brush can flexibly contact the surface to be cleaned. During operation, the roller brush has a strong adaptability to the surface to be cleaned, effectively reducing the load of the motor.

It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

FIG1 is a partial exploded perspective view of a cleaning machine according to an embodiment of the present invention;

FIG2 is a partial exploded perspective view of the cleaning machine in another direction according to an embodiment of the present invention;

FIG3 is a partial schematic diagram of a roller brush according to an embodiment of the present invention;

FIG4 is a partial schematic diagram of the second roller brush being adjusted upward in an embodiment of the present invention;

FIG5 is a partial schematic diagram of the second roller brush being adjusted downward in an embodiment of the present invention;

6 is a schematic structural diagram of a first mounting bracket in an embodiment of the present invention;

FIG. 7 is a partial three-dimensional side view of the cleaning machine in the embodiment of the present invention.

Reference numerals in the figures:

100-housing, 110-first mounting bracket, 111-pulley, 112-belt, 113-transmission shaft;

210 - second mounting bracket;

310 - first connecting member, 311 - first boss, 312 - first fixing seat, 320 - second connecting member, 321 - synchronous belt, 322 - second fixing seat, 323 - third fixing seat, 324 - second boss;

410 - third connecting member, 411 - first through hole, 412 - fourth fixing seat, 420 - fourth connecting member, 421 - rotating shaft, 422 - second through hole, 423 - snap ring, 424 - first limiting member, 425 - second limiting member, 426 - first arc-shaped groove, 427 - second arc-shaped groove;

510 - first roller brush, 511 - first rotating shaft, 520 - second roller brush, 521 - second rotating shaft.

Implementation

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and/or" used herein includes any and all combinations of one or more of the related listed items.

As shown in FIGS. 1-7 , this embodiment provides a floor brush assembly, including a housing 100 , a first roller brush 510 , and a second roller brush 520 , wherein:

1-2 and 7 , a first roller brush 510 and a second roller brush 520 are arranged in the shell 100 , which also includes a motor (not shown in the figure), wires (not shown in the figure), etc. On the one hand, the shell 100 can cover the components to make the product more beautiful, and on the other hand, it can prevent external damage to the components inside the shell 100.

1-2, the roller brush includes a first roller brush 510 and a second roller brush 520. The first roller brush 510 and the second roller brush 520 are installed in parallel in the shell 100. The first roller brush 510 is arranged on the second axis and rotates around the second axis, and the second roller brush 520 is arranged on the third axis and rotates around the third axis, so that the bristles of the first roller brush 510 and the second roller brush 520 are in contact with the surface to be cleaned, so that the bristles of the first roller brush 510 and the second roller brush 520 can clean the surface to be cleaned during the rotation.

As shown in Fig. 1-2, the first rotating mechanism is rotatably arranged in the housing 100 around the first axis and connected to the first roller brush 510, so that the first roller brush 510 can rotate around the first axis following the first rotating mechanism; the second rotating mechanism is rotatably arranged in the first rotating mechanism around the second axis and connected to the second roller brush 520, so that the second roller brush 520 can rotate around the second axis following the second rotating mechanism, and the first axis is parallel to the second axis and the third axis, so the height of the first roller brush 510 is adjusted by the first rotating mechanism, and the height of the second roller brush 520 is adjusted by the second rotating mechanism, so as to ensure that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned, and during the working process, the roller brush has a strong adaptability to the surface to be cleaned, and reduces the load of the motor. In a possible implementation, the first rotating mechanism includes a first connecting member 310 and a fourth connecting member 420, and the second rotating mechanism includes a second connecting member 320 and a third connecting member 410.

Specifically:

The two ends of the first roller brush 510 are respectively connected to the first end of the first connecting member 310 and the second end of the second connecting member 320, the second end of the second connecting member 320 is rotatably connected to the first end of the fourth connecting member 420, so that the second connecting member 320 can rotate around the second axis, and the second ends of the first connecting member 310 and the fourth connecting member 420 are rotatably connected to the housing 100, so that the first connecting member 310 and the fourth connecting member 420 can rotate around the first axis, driving the first roller brush 510 to rotate around the first axis. In the floor brush assembly provided in this embodiment, the first rotating mechanism only controls the rotation height of the first roller brush 510, instead of controlling the rotation heights of the first roller brush 510 and the second roller brush 520 through the first rotating mechanism. Therefore, when encountering an inclined working surface, the first roller brush 510 and the second roller brush 520 can respectively rotate around their corresponding second axis and first axis to always maintain flexible contact with the surface to be cleaned, effectively reducing the load of the motor. In addition, it should be pointed out that the first axis is fictitious, and its purpose is to illustrate that the rotation center of the first connecting member 310 and the rotation center of the fourth connecting member 420 are at the same height, thereby achieving synchronous rotation adjustment.

The two ends of the second roller brush 520 are respectively connected to the first ends of the third connecting member 410 and the second connecting member 320, and the second end of the third connecting member 410 is rotatably connected to the first end of the first connecting member 310, so that the third connecting member 410 can rotate around the second axis, and the second roller brush 520 follows the second connecting member 320 and the third connecting member 410 to rotate around the second axis, and the second axis is in a straight line with the axis of the first roller brush 510. In the floor brush assembly provided in this embodiment, the second rotating mechanism only controls the rotation height of the second roller brush 520. After the first roller brush 510 follows the first rotating mechanism to rotate and adjust the height, the second roller brush 520 can also follow the second rotating mechanism to rotate and adjust the height, ensuring that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned. During the working process, the roller brush has a strong adaptability to the surface to be cleaned, reducing the load of the motor. In addition, it should be pointed out that the second axis is also fictitious, and the purpose is to illustrate that the rotation center of the second connecting member 320 and the rotation center of the third connecting member 410 are at the same height, thereby realizing synchronous rotation adjustment.

In summary, as shown in Figures 3-5, there are partial schematic diagrams of the height adjustment of the roller brush in an embodiment of the present invention. When the surface to be cleaned is a horizontal plane, referring to Figure 3, because the roller brushes are arranged in parallel, there is no need to adjust the first connecting member 310 and the third connecting member 410; in addition, when the surface to be cleaned is uneven, in order to avoid the situation where the roller brush is idling and increase the load of the motor, it is necessary to adjust the first connecting member 310 and the third connecting member 410 separately so that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned. During operation, the roller brush has a strong adaptability to the surface to be cleaned.

Specifically, as shown in Figure 4, when the surface to be cleaned is tilted upward, after the first roller brush 510 contacts the surface to be cleaned, the third connecting member 410 adjusts the position of the second roller brush 520 by rotating upward to ensure that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned; referring to Figure 5, when the surface to be cleaned is tilted downward, after the first roller brush 510 contacts the surface to be cleaned, the third connecting member 410 adjusts the position of the second roller brush 520 by rotating downward to ensure that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned. During operation, the roller brushes have a strong adaptability to the surface to be cleaned. It should be pointed out that the adjustment mentioned here refers to the height adjustment of the roller brush using its own gravity and the rotation of the connecting member. When the cleaning machine is placed on the surface to be cleaned, the first roller brush 510 and the second roller brush 520 use their own gravity to flexibly contact the surface to be cleaned. When the height of the surface to be cleaned is raised, since the second roller brush 520 can rotate independently through the second connecting member 320 and the third connecting member 410, and the height of the surface to be cleaned will push the second roller brush 520 to rotate, when the second roller brush 520 contacts the surface to be cleaned, the height of the second roller brush 520 will be raised so that the second roller brush 520 is in flexibly contact with the surface to be cleaned. Similarly, when the height of the surface to be cleaned is lowered, since the second roller brush 520 rotates independently through the first connecting member 310 and the fourth connecting member 420, and relies on its own gravity to rotate downward to contact the surface to be cleaned, when the second roller brush 520 contacts the surface to be cleaned, the height of the second roller brush 520 will be lowered so that the second roller brush 520 is in flexibly contact with the surface to be cleaned.

Optionally, a first boss 311 is provided at the first end of the first connecting member 310 on a side away from the first roller brush 510, and a first through hole 411 is provided at the second end of the third connecting member 410, and the first boss 311 can be rotatably penetrated in the first through hole 411; the penetration mentioned here means that the radial dimension of the first boss 311 is smaller than the radial dimension of the first through hole 411, so that the third connecting member 410 can rotate around the first boss 311, and the height of the second roller brush 520 can be adjusted by rotating the third connecting member 410. As shown in Figure 1-2, the first boss 311 is columnar, and the corresponding first through hole 411 is a circular hole. Such a design can reduce the friction force when the third connecting member 410 rotates. Of course, the first boss 311 can also be any other shape, and the first through hole 411 is adapted to the shape of the first boss 311, so that the third connecting member 410 can rotate around the first boss 311.

The floor brush assembly further includes a first stopper 424, which is fixed to one end of the first boss 311 passing through the first through hole 411, and is used to limit the third connection member 410 to the first boss 311. In a possible implementation, the first stopper 424 is a shaft elastic circlip, and the radial length of the shaft elastic circlip is greater than the radial length of the first through hole 411 on the third connection member 410, so that the third connection member 410 cannot slide out of the first boss 311 through the shaft elastic circlip. Of course, the stopper may also be any other suitable component, as long as it ensures that the third connection member 410 is limited to the first boss 311.

Optionally, a second boss 324 is provided at the second end of the second connecting member 320 on a side away from the first roller brush 510, and a second through hole 422 is provided at the first end of the fourth connecting member 420, and the second boss 324 can be rotatably penetrated in the second through hole 422; the penetration mentioned here means that the radial dimension of the second boss 324 is smaller than the radial dimension of the second through hole 422, so that the fourth connecting member 420 can rotate around the second boss 324, and the height of the second roller brush 520 can be adjusted by rotating the fourth connecting member 420. As shown in Figure 1-2, the second boss 324 is columnar, and the corresponding second through hole 422 is a circular hole. Such a design can reduce the friction force when the fourth connecting member 420 rotates. Of course, the second boss 324 can also be any other shape, and the second through hole 422 is adapted to the shape of the second boss 324, so that the fourth connecting member 420 can rotate around the second boss 324.

The floor brush assembly further includes a second stopper 425, which is fixed to one end of the second boss 324 passing through the second through hole 422, and is used to limit the fourth connecting member 420 to the second boss 324. In a possible implementation, the second stopper 425 is a shaft elastic circlip, and the radial length of the shaft elastic circlip is greater than the radial length of the second through hole 422 in the fourth connecting member 420, so that the fourth connecting member 420 cannot slide out of the second boss 324 through the shaft elastic circlip. Of course, the stopper may also be any other suitable component, as long as it ensures that the fourth connecting member 420 is limited to the second boss 324.

Optionally, referring to Figures 1-2, the floor brush assembly also includes a first mounting bracket 110 and a second mounting bracket 210, and the first mounting bracket 110 and the second mounting bracket 210 are arranged in parallel and at intervals on the shell 100, and the first rotating mechanism is rotatably connected to the first mounting bracket 110 and the second mounting bracket 210 in the shell 100 around a first axis; in addition, in a possible implementation scheme, as shown in Figures 1-2, the first roller brush 510 is transmission-connected to the driving mechanism arranged on the first mounting bracket 110, and the fourth connecting member 420 is rotationally matched with the second mounting bracket 210 through a rotating structure, and the driving mechanism and the rotating structure are coaxially arranged.

Specifically, as shown in FIGS. 1-2 , the driving mechanism is disposed on the first mounting bracket 110, and the driving mechanism includes a pulley 111, a belt 112 and a transmission shaft 113. The pulley 111 is connected to the transmission shaft 113, and the first roller brush 510 is connected to the pulley 111 through the belt 112. Specifically, the motor drives the transmission shaft 113 to rotate. Since the pulley 111 is connected to the transmission shaft 113, the rotation of the transmission shaft 113 drives the pulley 111 to rotate. The first roller brush 510 is connected to the pulley 111 through the belt 112, so that the first roller brush 510 is driven to rotate under the rotation of the pulley 111. Further, the other end of the first roller brush 510 is connected to the second roller brush 520 through the synchronous belt 321. When one end of the first roller brush 510 is driven to rotate by the driving mechanism, the first roller brush 510 will rotate as a whole, thereby driving the synchronous belt 321 at the other end of the first roller brush 510 to rotate, so that the second roller brush 520 rotates synchronously.

In addition, the rotating structure includes a rotating shaft 421 arranged on the fourth connecting member 420 and a column hole arranged in the second mounting bracket 210; the rotating shaft 421 and the column hole are rotationally matched and are limited and fixed by a clamping ring 423 to prevent the rotating shaft 421 on the fourth connecting member 420 from rotating and falling off.

In another possible implementation, the first roller brush 510 is transmission-connected to the driving mechanism disposed on the second mounting bracket 210, the fourth connecting member 420 is rotationally matched with the first mounting bracket 110 through a rotating structure, and the driving mechanism and the rotating structure are coaxially disposed, which will not be described in detail here.

Optionally, as shown in Figures 1-2, the first connecting member 310 is provided with a first fixed seat 312 on the side close to the first roller brush 510, the second connecting member 320 is provided with a second fixed seat 322 and a third fixed seat 323 at intervals on the side close to the second roller brush 520, and the third connecting member 410 is provided with a fourth fixed seat 412 on the side close to the second roller brush 520.

The first rotating shaft 511 is penetrated by the first rolling brush 510 along the length direction of the first rolling brush 510, and its two ends are respectively fixedly connected to the first fixed seat 312 and the second fixed seat 322; the first rolling brush 510 is rotatably mounted on the first rotating shaft 511, and the first rotating shaft 511 is arranged on the second axis. Specifically, the first rolling brush 510 rotates around the first rotating shaft 511 through the sliding bearings fixed at the two ends of the first rolling brush 510; the second rotating shaft 521 is penetrated by the second rolling brush 520 along the length direction of the second rolling brush 520, and its two ends are respectively fixedly connected to the third fixed seat 323 and the fourth fixed seat 412; the second rolling brush 520 is rotatably mounted on the second rotating shaft 521, and the second rotating shaft 521 is arranged on the third axis. Specifically, the second rolling brush 520 rotates around the second rotating shaft 521 through the sliding bearings fixed at the two ends of the second rolling brush 520. Optionally, as shown in Figures 1-2, the driving mechanism and the rotating structure are arranged on the first axis, that is, the rotation centers of the driving mechanism and the rotating structure are set at the same height, and the height of the first roller brush 510 can be adjusted synchronously; in addition, the first rotating shaft 511 is arranged on the second axis, thereby ensuring that the rotation center of the second connecting member 320 and the rotation center of the third connecting member 410 are at the same height as the first roller brush 510, and the height of the second roller brush 520 can be adjusted synchronously.

Optionally, as shown in Figure 1, the first end of the first connecting member 310 is rotatably connected to the second end of the third connecting member 410, and a first arc-shaped groove 426 is provided on the second end of the third connecting member 410, and a first arc-shaped chamfer adapted to the first arc-shaped groove 426 is provided on the first end of the first connecting member 310; the first connecting member 310 is rotatably connected to the first arc-shaped groove 426, so that the first arc-shaped groove 426 can limit the first connecting member 310, so that the third connecting member 410 can only rotate circumferentially when rotating around the first boss 311, thereby limiting the axial or radial movement of the first connecting member 310, and making the first roller brush 510 more stable when rotating.

In addition, the second end of the second connecting member 320 is rotatably connected to the first end of the fourth connecting member 420, and a second arc groove 427 is provided on the first end of the fourth connecting member 420, and a second arc chamfer matched with the second arc groove 427 is provided on the second end of the second connecting member 320; the second connecting member 320 is rotatably connected to the second arc groove 427, so that the second arc groove 427 can limit the second connecting member 320, so that the fourth connecting member 420 can only rotate circumferentially when rotating around the second boss 324, limiting the axial or radial movement of the second connecting member 320, so that the first roller brush 510 is more stable when rotating. Of course, in another possible implementation method, the first end of the first connecting member 310 is provided with a first arc groove 426, the second end of the second connecting member 320 is provided with a second arc groove 427, the second end of the third connecting member 410 is provided with a first arc chamfer, and the first end of the fourth connecting member 420 is provided with a second arc chamfer, which will not be described in detail here.

Optionally, referring to Figures 1-2, one end of the first roller brush 510 is connected to the driving mechanism via a belt 112, and the other end of the first roller brush 510 is connected to the second roller brush 520 via a synchronous belt 321, thereby driving the second roller brush 520 to rotate synchronously. Specifically, the driving mechanism drives one end of the first roller brush 510 to rotate via the belt 112, and synchronous wheels are respectively provided at the other end of the first roller brush 510 and the end of the second roller brush 520, and the synchronous belt 321 is installed on the synchronous wheel, thereby realizing the synchronous rotation of the first roller brush 510 and the second roller brush 520.

As shown in FIGS. 1-7 , this embodiment also provides a cleaning machine, including the floor brush assembly provided in the above embodiments.

The present embodiment provides a cleaning machine, wherein the first connecting member 310 and the fourth connecting member 420 can rotate around the first axis, driving the first roller brush 510 to rotate around the first axis; the second connecting member 320 and the third connecting member 410 can rotate around the second axis, driving the second roller brush 520 to rotate around the second axis, thereby ensuring that the first roller brush 510 and the second roller brush 520 can flexibly contact the surface to be cleaned. During operation, the roller brushes have strong adaptability to the surface to be cleaned, thereby avoiding the situation where only one roller brush maintains flexible contact with the surface to be cleaned and the other roller brush is away from the surface to be cleaned, or one of the roller brushes is stuck in a carpet with more hair, which cannot reduce the load of the motor well.

The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims (1)

A floor brush assembly, comprising a housing, a first roller brush and a second roller brush, wherein the first roller brush and the second roller brush are installed in parallel in the housing, the first roller brush is arranged on a second axis and rotates around the second axis, and the second roller brush is arranged on a third axis and rotates around the third axis; characterized in that the floor brush assembly also includes: a first rotating mechanism, the first rotating mechanism being rotatably disposed in the housing around a first axis and connected to the first roller brush, so that the first roller brush can rotate around the first axis following the first rotating mechanism; and The second rotating mechanism is rotatably arranged on the first rotating mechanism around a second axis and connected to the second roller brush, so that the second roller brush can rotate around the second axis following the second rotating mechanism, and the first axis is parallel to the second axis and the third axis. 2. The floor brush assembly according to claim 1, characterized in that: The first rotating mechanism includes a first connecting member and a fourth connecting member, and the second rotating mechanism includes a second connecting member and a third connecting member; wherein, The second end of the first connecting member and the second end of the fourth connecting member are rotatably connected to the housing; The second end of the second connecting member is rotatably connected to the first end of the fourth connecting member, and the second end of the third connecting member is rotatably connected to the first end of the first connecting member. 3. The floor brush assembly according to claim 2, characterized in that: The first end of the first connecting member is fixed to one end of the first rolling brush, and the first end of the fourth connecting member is fixed to the other end of the first rolling brush through the second end of the second connecting member; The first end of the second connecting member is fixed to one end of the second roller brush, and the first end of the third connecting member is fixed to the other end of the second roller brush. 4. The floor brush assembly according to claim 3, characterized in that: A first boss is provided at a first end of the first connecting member at a side away from the first roller brush, a first through hole is provided at a second end of the third connecting member, and the first boss is rotatably inserted into the first through hole; Wherein, the floor brush assembly further includes a first limiting member, which is fixed to one end of the first boss passing through the first through hole, and is used to limit the third connecting member to the first boss. 5. The floor brush assembly according to claim 3, characterized in that: The second end of the second connecting member is provided with a second boss at a side away from the first roller brush, the first end of the fourth connecting member is provided with a second through hole, and the second boss is rotatably inserted into the second through hole; Wherein, the floor brush assembly further includes a second limiting member, which is fixed to one end of the second boss passing through the second through hole, and is used to limit the fourth connecting member to the second boss. 6. The floor brush assembly according to claim 2, characterized in that: The floor brush assembly further includes a first mounting bracket and a second mounting bracket, wherein the first mounting bracket and the second mounting bracket are arranged in parallel and at intervals on the housing, and the first rotating mechanism is rotatably connected to the first mounting bracket and the second mounting bracket in the housing around a first axis; The first roller brush is drivingly connected to a driving mechanism provided on one of the first mounting bracket and the second mounting bracket. 7. The floor brush assembly according to claim 6, characterized in that: The driving mechanism is arranged on the first mounting bracket, and the driving mechanism includes a pulley, a belt and a transmission shaft. The pulley is connected to the transmission shaft, one end of the first roller brush is connected to the pulley through the belt, and the other end of the first roller brush is connected to the second roller brush through a synchronous belt, driving the second roller brush to rotate synchronously. 8. The floor brush assembly according to claim 2 or 4, characterized in that: The first connecting member is provided with a first fixing seat on a side close to the first rolling brush, the second connecting member is provided with a second fixing seat and a third fixing seat at intervals on a side close to the second rolling brush, and the third connecting member is provided with a fourth fixing seat on a side close to the second rolling brush; Among them, the first rotating shaft is penetrated by the first rolling brush along the length direction of the first rolling brush and the two ends are respectively fixedly connected to the first fixing seat and the second fixing seat, the first rolling brush is rotatably mounted on the first rotating shaft, and the first rotating shaft is arranged on the second axis; the second rotating shaft is penetrated by the second rolling brush along the length direction of the second rolling brush and the two ends are respectively fixedly connected to the third fixing seat and the fourth fixing seat, the second rolling brush is rotatably mounted on the second rotating shaft, and the second rotating shaft is arranged on the third axis. 9. The floor brush assembly according to claim 2, characterized in that: A first arc-shaped groove is arranged on the second end of the third connecting member, and a first arc-shaped chamfer adapted to the first arc-shaped groove is arranged on the first end of the first connecting member; a second arc-shaped groove is arranged on the first end of the fourth connecting member, and a second arc-shaped chamfer adapted to the second arc-shaped groove is arranged on the second end of the second connecting member. 10. A cleaning machine, characterized by comprising the floor brush assembly according to any one of claims 1 to 9.