Floor brush assembly and cleaning machine

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

Floor brush assembly and cleaning machine Technical Field

[0001] 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

[0002] Carpet cleaning machines are widely used as cleaning tools in homes and hotels, especially those with double roller brushes, which have good cleaning effects. Currently, double roller brushes are generally used in carpet cleaning machines in two structures:

[0003] 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, the motor heats up too high, and the service life of the carpet cleaning machine is affected; 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 may result in one roller brush working normally while the other roller brush is off the carpet surface, which does not achieve the effect of a double roller brush. How to set up a structure that can adjust the height of each roller brush individually has become an urgent problem to be solved. Summary of the Invention

[0004] 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.

[0005] 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:

[0006] a first rotating mechanism, the first rotating mechanism being rotatably disposed in the housing about a first axis and connected to the first roller brush, such that the first roller brush can rotate about the first axis following the first rotating mechanism; and

[0007] 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 follow the second rotating mechanism to rotate around the second axis, and the first axis is parallel to the second axis and the third axis.

[0008] 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,

[0009] The second end of the first connecting member and the second end of the fourth connecting member are rotatably connected to the housing;

[0010] 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.

[0011] 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 via the second end of the second connecting member;

[0012] 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.

[0013] In a feasible implementation, a first boss is provided at the first end of the first connecting member on a side away from the first roller brush, a first through hole is provided at the second end of the third connecting member, and the first boss is rotatably inserted into the first through hole;

[0014] 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.

[0015] In a feasible implementation, the second end of the second connecting member is provided with a second boss on 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;

[0016] 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.

[0017] 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 spaced apart 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;

[0018] 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.

[0019] 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.

[0020] The rotating structure includes 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.

[0021] 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;

[0022] The first rotating shaft is provided in the first rolling brush along the length direction of the first rolling brush and its two ends are fixedly connected to the first fixed seat and the second fixed 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 provided in the second rolling brush along the length direction of the second rolling brush and its two ends are fixedly connected to the third fixed seat and the fourth fixed 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.

[0023] 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.

[0024] 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.

[0025] A second aspect of the present invention provides a cleaning machine comprising the floor brush assembly described in the first aspect.

[0026] The implementation of the present invention has the following beneficial effects:

[0027] The floor brush assembly and cleaning machine provided by the present invention are characterized in that 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 strong adaptability to the surface to be cleaned, effectively reducing the load on the motor.

[0028] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings herein are incorporated into 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.

[0030] FIG1 is a partially exploded perspective view of a cleaning machine according to an embodiment of the present invention;

[0031] FIG2 is a partial exploded perspective view of the cleaning machine in another direction according to an embodiment of the present invention;

[0032] FIG3 is a partial schematic diagram of a roller brush according to an embodiment of the present invention;

[0033] FIG4 is a partial schematic diagram of the second roller brush being adjusted upward in accordance with an embodiment of the present invention;

[0034] FIG5 is a partial schematic diagram of the second roller brush adjusted downward in an embodiment of the present invention;

[0035] FIG6 is a schematic structural diagram of a first mounting bracket according to an embodiment of the present invention;

[0036] FIG7 is a partial three-dimensional side view of the cleaning machine according to an embodiment of the present invention.

[0037] Reference numerals in the figures:

[0038] 100 - housing, 110 - first mounting bracket, 111 - pulley, 112 - belt, 113 - transmission shaft;

[0039] 210- second mounting bracket;

[0040] 310 - first connecting member, 311 - first boss, 312 - first fixing seat, 320 - second connecting member, 321 - timing belt, 322 - second fixing seat, 323 - third fixing seat, 324 - second boss;

[0041] 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;

[0042] 510 - first roller brush, 511 - first rotating shaft, 520 - second roller brush, 521 - second rotating shaft. Implementation Method

[0043] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] As shown in Figures 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:

[0047] 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.

[0048] 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. 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 process.

[0049] 1-2 , a first rotating mechanism is rotatably disposed within housing 100 about a first axis and connected to a first roller brush 510 , allowing the first roller brush 510 to rotate along with the first rotating mechanism about the first axis. A second rotating mechanism is rotatably disposed within the first rotating mechanism about a second axis and connected to a second roller brush 520 , allowing the second roller brush 520 to rotate along with the second rotating mechanism about the second axis. The first axis is parallel to the second axis and the third axis. Therefore, the height of the first roller brush 510 can be adjusted by the first rotating mechanism, and the height of the second roller brush 520 can be adjusted by the second rotating mechanism, 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, reducing the load on the motor. In one possible implementation, the first rotating mechanism includes a first connector 310 and a fourth connector 420 , and the second rotating mechanism includes a second connector 320 and a third connector 410 .

[0050] Specifically:

[0051] 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 about the second axis. 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 about the first axis, driving the first roller brush 510 to rotate about the first axis. In the floor brush assembly provided in this embodiment, the first rotation mechanism only controls the rotation height of the first roller brush 510, rather than controlling the rotation height of both the first roller brush 510 and the second roller brush 520 through the first rotation mechanism. Therefore, when encountering an inclined working surface, the first roller brush 510 and the second roller brush 520 can rotate about their corresponding second axis and first axis respectively until they always maintain flexible contact with the surface to be cleaned, effectively reducing the load on 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.

[0052] The second roller brush 520 has two ends connected to the first ends of the third connector 410 and the second connector 320, respectively. The second end of the third connector 410 is rotatably connected to the first end of the first connector 310, allowing the third connector 410 to rotate about a second axis. The second roller brush 520 rotates along the second and third connectors 320 and 410 about the second axis. The second axis is aligned with the axis of the first roller brush 510. In the floor brush assembly provided in this embodiment, the second rotation mechanism only controls the rotation height of the second roller brush 520. After the first roller brush 510 rotates to adjust its height following the first rotation mechanism, the second roller brush 520 can also rotate to adjust its height following the second rotation mechanism. This ensures that the first and second roller brushes 510, 520, can flexibly contact the surface to be cleaned. During operation, the roller brushes have greater adaptability to the surface to be cleaned, reducing the load on the motor. It should be noted that the second axis is fictitious, intended to illustrate that the rotation centers of the second and third connectors 320 and 410 are at the same height, thereby achieving synchronized rotation adjustment.

[0053] In summary, referring to Figures 3-5, which are partial schematic diagrams of the roller brush height adjustment in an embodiment of the present invention, when the surface to be cleaned is a horizontal surface, 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 roller brush being unloaded 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.

[0054] 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. When the cleaning machine is placed on the surface to be cleaned, the first and second roller brushes 510, 520 utilize their own gravity to flexibly contact the surface to be cleaned. When the height of the surface to be cleaned is raised, 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 pushes the second roller brush 520 to rotate. Therefore, when the second roller brush 520 contacts the surface to be cleaned, the height of the second roller brush 520 will be raised to make the second roller brush 520 flexibly contact the surface to be cleaned. Similarly, when the height of the surface to be cleaned is lowered, 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. Therefore, when the second roller brush 520 contacts the surface to be cleaned, the height of the second roller brush 520 will be lowered to make the second roller brush 520 flexibly contact the surface to be cleaned.

[0055] 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 is rotatably passed through the first through hole 411; the passing 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 cylindrical, 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.

[0056] The floor brush assembly further includes a first stopper 424, which is fixed to one end of the first boss 311 extending through the first through-hole 411, and is used to limit the third connecting member 410 to the first boss 311. In one possible implementation, the first stopper 424 is a shaft circlip, the radial length of which is greater than the radial length of the first through-hole 411 on the third connecting member 410, so that the third connecting member 410 cannot slide out of the first boss 311 through the shaft circlip. Of course, the stopper may also be any other suitable component, as long as it ensures that the third connecting member 410 is restricted to the first boss 311.

[0057] Optionally, the second end of the second connecting member 320 is provided with a second boss 324 on the side away from the first roller brush 510, and the first end of the fourth connecting member 420 is provided with a second through hole 422, and the second boss 324 is 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 cylindrical, 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.

[0058] The floor brush assembly further includes a second limiting member 425, which is fixed to one end of the second boss 324 extending through the second through-hole 422, and is used to limit the fourth connecting member 420 to the second boss 324. In one possible implementation, the second limiting member 425 is a shaft circlip, and the radial length of the shaft 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 circlip. Of course, the limiting member can also be any other suitable component, as long as it ensures that the fourth connecting member 420 is restricted to the second boss 324.

[0059] 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 provided 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.

[0060] Specifically, as shown in Figures 1-2, a drive mechanism is disposed on the first mounting bracket 110 and 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 via 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 via the belt 112, and the rotation of the pulley 111 drives the first roller brush 510 to rotate. Furthermore, the other end of the first roller brush 510 is connected to the second roller brush 520 via a synchronous belt 321. When one end of the first roller brush 510 is driven to rotate by the drive mechanism, the first roller brush 510 rotates as a whole, thereby driving the synchronous belt 321 at the other end of the first roller brush 510 to rotate, causing the second roller brush 520 to rotate synchronously.

[0061] In addition, the rotating structure includes a rotating shaft 421 set on the fourth connecting member 420 and a column hole set in the second mounting bracket 210; the rotating shaft 421 and the column hole are rotatably matched and are fixed by a clamping ring 423 to prevent the rotating shaft 421 on the fourth connecting member 420 from rotating and falling off.

[0062] In another possible implementation method, the first roller brush 510 is transmission-connected to the driving mechanism provided on the second mounting bracket 210, and the fourth connecting member 420 is rotationally matched with the first mounting bracket 110 through a rotating structure. The driving mechanism and the rotating structure are coaxially arranged, and the details are not repeated here.

[0063] 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.

[0064] The first rotating shaft 511 is provided on the first rolling brush 510 along the length direction of the first rolling brush 510 and its two ends are fixedly connected to the first fixed seat 312 and the second fixed seat 322 respectively. 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 is rotated around the first rotating shaft 511 through the sliding bearings fixed at both ends of the first rolling brush 510; the second rotating shaft 521 is provided on the second rolling brush 520 along the length direction of the second rolling brush 520 and its two ends are fixedly connected to the third fixed seat 323 and the fourth fixed seat 412 respectively. 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 is rotated around the second rotating shaft 521 through the sliding bearings fixed at both 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.

[0065] 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, limiting the axial or radial movement of the first connecting member 310, so that the first roller brush 510 is more stable when rotating.

[0066] In addition, the second end of the second connecting member 320 is rotatably connected to the first end of the fourth connecting member 420. The first end of the fourth connecting member 420 is provided with a second arcuate groove 427, and the second end of the second connecting member 320 is provided with a second arcuate chamfer that matches the second arcuate groove 427. The second connecting member 320 is rotatably connected to the second arcuate groove 427 so that the second arcuate 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 and making the first roller brush 510 more stable when rotating. Of course, in another possible implementation, the first end of the first connecting member 310 is provided with a first arcuate groove 426, the second end of the second connecting member 320 is provided with a second arcuate groove 427, the second end of the third connecting member 410 is provided with a first arcuate chamfer, and the first end of the fourth connecting member 420 is provided with a second arcuate chamfer. The details are not repeated here.

[0067] Optionally, as shown in Figures 1-2, one end of the first roller brush 510 is connected to the driving mechanism through a belt 112, and the other end of the first roller brush 510 is connected to the second roller brush 520 through a synchronous belt 321, driving the second roller brush 520 to rotate synchronously. Specifically, the driving mechanism drives one end of the first roller brush 510 to rotate through 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, so that the synchronous rotation of the first roller brush 510 and the second roller brush 520 can be achieved.

[0068] As shown in Figures 1-7, this embodiment also provides a cleaning machine, including the floor brush assembly provided in the above embodiments.

[0069] This embodiment provides a cleaning machine, in which 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, 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, 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 the situation where one of the roller brushes is stuck in a lot of carpet hair, which cannot effectively reduce the load of the motor.

[0070] The technical features of the above embodiments can 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.

[0071] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended 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; It is 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, It is 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, It is 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, It is 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, It is 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, It is 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 in transmission connection with 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, It is 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, It is 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, It is 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, It is characterized in that The invention comprises a floor brush assembly as described in any one of claims 1 to 9.

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