Floor brush assembly and cleaning device

Abstract

The utility model discloses a floor brush assembly and a cleaning device, the floor brush assembly comprises a casing, a rolling brush assembly and a driving assembly, and the casing is provided with an installation space; the rolling brush assembly is installed in the installation space and comprises a rolling brush cylinder and a cleaning element arranged on the outer side face of the rolling brush cylinder, a liquid storage cavity is formed in the rolling brush cylinder, one end of the liquid storage cavity extends to the end face of the rolling brush cylinder and forms a liquid inlet, and the liquid storage cavity is used for containing cleaning liquid input from the outside through the liquid inlet; a liquid outlet hole communicated with the liquid storage cavity is formed in the peripheral surface of the rolling brush cylinder; the driving assembly is arranged on the side, close to the liquid inlet, of the machine shell, and the driving assembly is in power connection with the end, forming the liquid inlet, of the rolling brush barrel and used for driving the rolling brush assembly to rotate in the axial direction of the rolling brush barrel. A liquid inlet pipe is further arranged on the side, close to the liquid inlet, of the machine shell, and the liquid inlet pipe is communicated with the liquid inlet. According to the utility model, a user can conveniently disassemble or replace the rolling brush assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a floor brush assembly and a cleaning device. Background Art

[0002] The cleaning device is usually provided with a roller brush assembly to clean the object to be cleaned. In order to achieve a better effect of removing dirt, a liquid supply device is provided to make dry garbage or stubborn garbage easier to clean.

[0003] In the prior art, the liquid supply device and the drive device are arranged at both ends of the roller brush, so that the roller brush is provided with a coupling structure with the drive device at one end and a docking structure with the liquid supply device at the other end. The coupling structure and the docking structure limit the radial movement of the roller brush on both sides of the roller brush assembly. When the roller brush needs to be taken for cleaning or replacement, the liquid supply device / drive device has to give way, resulting in inconvenience in taking it; if the liquid supply device side is chosen to be disassembled, the sealing between the liquid supply device and the roller brush assembly will also be affected due to frequent disassembly and assembly. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a floor brush assembly and a cleaning device, which can facilitate users to disassemble or replace the roller brush assembly.

[0005] The utility model is achieved through the following technical solutions:

[0006] A floor brush assembly, characterized by comprising:

[0007] a housing, wherein a mounting space is provided on the housing;

[0008] A roller brush assembly is installed in the installation space, the roller brush assembly includes a roller brush body and a cleaning element arranged on the outer side of the roller brush body, a liquid storage chamber is provided inside the roller brush body, one end of the liquid storage chamber extends to the end surface of the roller brush body and forms a liquid inlet, the liquid storage chamber is used to receive cleaning liquid input from the outside through the liquid inlet; the outer peripheral surface of the roller brush body is provided with a liquid outlet hole connected to the liquid storage chamber;

[0009] A drive assembly is provided on a side of the housing close to the liquid inlet, and the drive assembly is dynamically connected to the roller brush body to form one end of the liquid inlet, and is used to drive the roller brush assembly to rotate around the axial direction of the roller brush body;

[0010] Wherein, a liquid inlet pipe is further provided on one side of the housing close to the liquid inlet, and the liquid inlet pipe is communicated with the liquid inlet.

[0011] Furthermore, the driving assembly includes a transmission shaft, which is coaxially fixedly connected to the roller brush body; and a liquid supply channel is opened in the transmission shaft, one end of which is connected to the liquid inlet and the other end is connected to the liquid inlet pipe.

[0012] Furthermore, a first coupling member is provided at one end of the transmission shaft near the liquid inlet, and a second coupling member is provided at one end of the roller brush body near the liquid inlet. The first coupling member and the second coupling member are coupled and connected, and the interiors of the first coupling member and the second coupling member are hollow so that the liquid inlet and the liquid supply channel are connected to each other.

[0013] Furthermore, a sealing ring is provided between the first coupling member and the second coupling member, and an annular groove for accommodating the sealing ring is provided on the outer circumferential surface of the first coupling member or the inner circumferential surface of the second coupling member.

[0014] Furthermore, the transmission shaft and the first coupling member are integrally formed by injection molding.

[0015] Furthermore, the drive assembly also includes a transmission assembly having a shell, the liquid inlet pipe is formed on the shell, and an oil seal is provided on the outer side of one end of the transmission shaft close to the liquid inlet pipe, and the oil seal is used to seal the connection between the liquid inlet pipe and the transmission shaft.

[0016] Furthermore, an assembly groove is formed inwardly on the inner wall of the shell corresponding to the liquid inlet pipe, and the oil seal is accommodated in the assembly groove.

[0017] Furthermore, the driving assembly further includes a driving motor, and the transmission assembly is used to transmit the rotational force of the driving motor to the transmission shaft, thereby driving the roller brush body to rotate;

[0018] The transmission assembly also includes a driving wheel, a synchronous belt and a driven wheel arranged inside the shell. The driving wheel is interference-fitted on the output shaft of the drive motor. The inner ring of the driven wheel is integrally formed with a sleeve by injection molding. The sleeve is interference-fitted on the transmission shaft. The synchronous belt is mounted between the driving wheel and the driven wheel.

[0019] Furthermore, the drive assembly further includes a first bearing, an inner ring of the first bearing is interference-fitted with the transmission shaft, and an outer ring of the first bearing is interference-fitted with the housing.

[0020] Furthermore, a hand-held assembly is provided at one end of the roller brush body away from the liquid inlet, and the hand-held assembly includes an embedded component matched with the roller brush body, a second bearing and a handle, the embedded component extends outward with a mounting shaft, and the second bearing is arranged between the mounting shaft and the handle.

[0021] Furthermore, a rotating part is provided at one end of the roller brush barrel away from the liquid inlet, and the rotating part is integrally formed and includes a main body, a circular protrusion provided in the center of the main body, and a pair of supporting legs symmetrically provided on both sides of the main body, the pair of supporting legs are clamped with the handle, and the inner wall of the casing is provided with a circular groove that matches the circular protrusion.

[0022] Furthermore, the inner wall of the housing is provided with a limiting groove for accommodating the handle, the opening of the limiting groove is set upward, and the handle has a hand-held portion for the user to hold to remove the roller brush assembly, and the hand-held portion abuts above the edge of the opening.

[0023] Furthermore, the floor brush assembly also includes a viewing window cover, one end of which is rotatably connected to the housing and the other end is clamped to the housing, so as to cover the roller brush assembly.

[0024] Furthermore, the floor brush assembly also includes an upper cover, one end of the upper cover is matched with the casing, and the other end is clamped with the casing, and a wastewater channel is formed inside the upper cover, and one end of the wastewater channel is arranged in contact with the ground.

[0025] A cleaning device comprising:

[0026] Cleaning device body;

[0027] A liquid storage tank is installed on the cleaning device body, and the interior of the liquid storage tank is provided with a first receiving chamber for receiving cleaning liquid and a second receiving chamber for storing waste liquid;

[0028] a liquid pump, mounted on the cleaning device body, wherein a liquid inlet end of the liquid pump is connected to the first receiving chamber;

[0029] A floor brush assembly is the above-mentioned floor brush assembly, and the floor brush assembly is installed at the bottom of the cleaning device body, and the liquid outlet end of the liquid pump is connected to the liquid inlet pipe of the floor brush assembly.

[0030] Compared with the prior art, the advantages of the present invention are:

[0031] By arranging the liquid inlet pipe and the drive assembly on the same side of the roller brush assembly, the other side of the roller brush assembly does not need to be improved compared to the ordinary roller brush. The roller brush assembly can be directly extracted and taken out through the hand-held assembly for cleaning or replacement, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of the floor brush assembly;

[0033] Figure 2 This is a schematic diagram of the floor brush assembly structure with the viewing window cover open;

[0034] Figure 3 The local structure explosion of the floor brush component Figure 1 ;

[0035] Figure 4 This is a partial exploded view of the floor brush assembly;

[0036] Figure 5 Cross-section of the floor brush assembly Figure 1 ;

[0037] Figure 6 Cross-section of the floor brush assembly Figure 2 ;

[0038] Figure 7 for Figure 6 A magnified view of part A in FIG;

[0039] Figure 8 This is a partial structural exploded diagram of the floor brush assembly;

[0040] Figure 9 This is an exploded view of the handheld component;

[0041] Figure 10 The local structure explosion of the floor brush component Figure 2 ;

[0042] Figure 11 It is a structural schematic diagram of the cleaning device;

[0043] Figure 12 Part of the structure of the floor brush assembly exploded Figure 1 ;

[0044] Figure 13 Part of the structure of the floor brush assembly exploded Figure 2 .

[0045] 1. Housing; 10. Installation space; 11. Liquid inlet pipe; 12. Circular groove; 13. Limiting groove; 130. Opening; 14. Rotating shaft; 15. Groove; 16. Slot; 17. Card slot; 2. Roller brush assembly; 3. Roller brush cylinder; 30. Liquid storage chamber; 31. Liquid inlet; 32. Liquid outlet; 33. Rotating member; 330. Main body; 331. Circular protrusion; 332. Support foot; 34. Handle assembly; 340. Inlaid component; 341. Second bearing; 342. Handle; 344. Handheld portion; 343. Mounting shaft; 4. Cleaning element; 5. Drive assembly; 50. Transmission shaft; 500, liquid supply channel; 51, first coupling member; 510, annular groove; 52, second coupling member; 53, sealing ring; 54, first bearing; 55, oil seal; 56, drive motor; 57, transmission assembly; 571, driving wheel; 572, synchronous belt; 573, driven wheel; 574, housing; 575, assembly groove; 576, first shell; 577, second shell; 58, bushing; 6, visual window cover; 60, bump; 7, upper cover; 70, wastewater channel; 71, plug pin; 72, sliding cover; 720, block; 73, spring; 8, liquid storage tank; 80, waste liquid pipeline. DETAILED DESCRIPTION

[0046] The following is a further non-restrictive detailed description of the technical solution of the utility model in conjunction with the preferred embodiments and the accompanying drawings. In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model.

[0047] like Figure 1As shown, a floor brush assembly according to an embodiment of the present invention includes a housing 1, a roller brush assembly 2 and a drive assembly 5. An installation space 10 is provided on the housing 1, and the roller brush assembly 2 is installed in the installation space 10. The roller brush assembly 2 includes a roller brush cylinder 3 and a cleaning element 4 provided on the outer side of the roller brush cylinder 3. The drive assembly 5 is used to drive the roller brush assembly 2 to rotate around the axial direction of the roller brush cylinder 3, thereby driving the cleaning element 4 to clean the floor.

[0048] like Figure 2 and Figure 3 As shown, the floor brush assembly also includes a viewing window cover 6, one end of which is rotatably connected to the housing 1 and the other end is engaged with the housing 1, and is used to cover the roller brush assembly 2. Specifically, a rotating shaft 14 is protruded on both sides of the housing 1 in the direction of the viewing window cover 6. There are small holes on both sides of one end of the viewing window cover 6 for the rotating shaft 14 to pass through, so that the viewing window cover 6 rotates around the rotating shaft 14; a pair of protrusions 60 are protruded on the other end of the viewing window cover 6, and a pair of grooves 15 are provided on the housing 1 at positions corresponding to the protrusions 60 to match the protrusions 60. The protrusions 60 and the grooves 15 are engaged to cover the roller brush assembly 2 when the floor brush assembly is working. Of course, the protrusions 60 and the grooves 15 can also be provided in single or multiple numbers. Among them, the viewing window cover 6 is made of a transparent material to facilitate the user to directly see the working status of the internal roller brush assembly 2.

[0049] like Figure 4 and Figure 5 As shown, the floor brush assembly also includes an upper cover 7, one end of which is mated with the housing 1 and the other end is engaged with the housing 1. Specifically, a pair of plug pins 71 are provided at the bottom of the upper cover 7, and a slot 16 is provided on the housing 1 for inserting the plug pins 71. The upper cover 7 is also provided with a slidable slide 72, one end of which abuts the upper cover 7 via a spring 73, and the other end is formed with a pair of blocks 720. The housing 1 is provided with a slot 17 that mates with the blocks 720 at a position corresponding to the blocks 720. During disassembly, the upper cover 7 can be manually slid to disengage the blocks 720 from the slot 17, and then the plug pin 71 can be removed from the slot 16 to complete the disassembly of the upper cover 7. A wastewater channel 70 is also formed between the upper cover 7 and the viewing window cover 6, and the inlet end of the wastewater channel 70 is set in contact with the ground.

[0050] like Figure 6 、 Figure 7 、 Figure 12 and Figure 13As shown, a liquid storage chamber 30 is provided inside the roller brush body 3. One end of the liquid storage chamber 30 extends to the end surface of the roller brush body 3 and forms a liquid inlet 31. The liquid storage chamber 30 is used to receive cleaning liquid input from the outside through the liquid inlet 31. The outer peripheral surface of the roller brush body 3 is provided with a liquid outlet 32 ​​connected to the liquid storage chamber 30. The cleaning liquid enters the liquid storage chamber 30 from the liquid inlet 31 and is discharged through the liquid outlet 32. The cleaning liquid discharged from the liquid outlet 32 ​​can wet the ground and the cleaning element 4 to facilitate cleaning stubborn stains. Specifically, the cleaning liquid discharged from the liquid outlet 32 ​​is fan-shaped. When the roller brush body 3 rotates so that the liquid outlet 32 ​​faces upward, the cleaning liquid sprays toward the visual window cover 6, which can basically cover the entire visual window cover 6, and drips from the visual window cover 6 to wet the cleaning element 4.

[0051] like Figure 8 As shown, the drive assembly 5 is arranged on a side of the housing 1 near the liquid inlet 31, and the drive assembly 5 is dynamically connected to one end of the roller brush body 3 to form the liquid inlet 31, and is used to drive the roller brush assembly 2 to rotate around the axial direction of the roller brush body 3. The housing 1 is also provided with a liquid inlet pipe 11 on the side near the liquid inlet 31, and the liquid inlet pipe 11 is connected to the liquid inlet 31. By arranging the liquid inlet pipe 11 and the drive assembly 5 on the same side of the roller brush assembly 2, the other side of the roller brush assembly 2 and the structure on the housing 1 matching this side do not need to be improved compared to the original ordinary roller brush. The roller brush assembly 2 can be directly extracted and taken out for cleaning or replacement through the original hand-held assembly 34, which is easy to operate.

[0052] like Figure 8 As shown, the drive assembly 5 includes a drive motor 56, a transmission assembly 57 and a transmission shaft 50. The transmission shaft 50 is coaxially fixedly connected to the roller brush body 3. The transmission assembly 57 is used to transmit the rotational force of the drive motor 56 to the transmission shaft 50, thereby driving the roller brush body 3 to rotate. A liquid supply channel 500 is opened in the transmission shaft 50, one end of the liquid supply channel 500 is connected to the liquid inlet 31, and the other end is connected to the liquid inlet pipe 11. When the drive motor 56 is started, the transmission assembly 57 transmits the rotational force of the drive motor 56 to the transmission shaft 50, causing the transmission shaft 50 to rotate, thereby driving the roller brush body 3 to rotate synchronously. At the same time, the external cleaning liquid can enter from the liquid inlet pipe 11, pass through the liquid supply channel 500, the liquid inlet 31, the liquid storage chamber 30 and the liquid outlet 32 ​​of the transmission shaft 50 in sequence, and finally wet the cleaning element 4 or the ground.

[0053] like Figure 7As shown, specifically, a first coupling member 51 is further provided at one end of the transmission shaft 50 near the liquid inlet 31, and a second coupling member 52 is provided at one end of the roller brush body 3 near the liquid inlet 31. The first coupling member 51 and the second coupling member 52 are coupled and connected, and the interiors of the first coupling member 51 and the second coupling member 52 are both hollow so that the liquid inlet 31 and the liquid supply channel 500 are connected to each other. In order to ensure the sealing of the connection between the first coupling member 51 and the second coupling member 52, a sealing ring 53 is selected to be provided between the first coupling member 51 and the second coupling member 52, and an annular groove 510 for accommodating the sealing ring 53 is provided on the outer peripheral surface of the first coupling member 51. Of course, the opening position of the annular groove 510 is not limited to the first coupling member 51, and can also be provided on the second coupling member 52, specifically, it can be provided on the inner peripheral surface of the second coupling member 52.

[0054] In order to improve the connection structure and transmission stability between the transmission shaft 50 and the first coupling member 51, in this embodiment, the transmission shaft 50 and the first coupling member 51 are integrally formed by injection molding. Similarly, the roller brush body 3 and the second coupling member 52 can also be integrally formed to improve the stability of the connection and transmission.

[0055] like Figure 8 As shown, the transmission assembly 57 includes a housing 574 and a driving pulley 571, a synchronous belt 572, and a driven pulley 573 disposed within the housing 574. The driving pulley 571 is interference-fitted onto the output shaft of the drive motor 56. The inner ring of the driven pulley 573 is integrally molded with a sleeve 58 via injection molding. The sleeve 58 is interference-fitted onto the transmission shaft 50. The synchronous belt 572 is mounted between the driving pulley 571 and the driven pulley 573. Of course, the rotational force transmission method of the drive motor 56 is not limited to a synchronous belt; it can also be carried out by rotating multi-stage transmission gears. In this embodiment, in order to achieve a lightweight floor brush assembly, the synchronous belt 572 is preferably used as the power transmission method. In addition, to ensure the stability of the operation of the drive motor 56, a third bearing is provided between the output shaft of the drive motor 56 and the housing 574, and a cavity for accommodating the third bearing is provided on the housing 574.

[0056] In this embodiment, the housing 574 includes a first housing portion 576 and a second housing portion 577 . The first housing portion 576 and the second housing portion 577 are detachably connected and supported on the housing 1 . The liquid inlet pipe 11 is disposed on the second housing portion 577 .

[0057] like Figure 7 As shown, to ensure stable rotation of the transmission shaft 50, a first bearing 54 is directly disposed between the transmission shaft 50 and the housing 574. The inner ring of the first bearing 54 is interference-fitted with the transmission shaft 50, and the outer ring of the first bearing 54 is interference-fitted with the housing 574. Specifically, the first bearing 54 is disposed on the first shell portion 576.

[0058] like Figure 7 、 Figure 12 and Figure 13 As shown, in this embodiment, the liquid inlet pipe 11 is formed on the second shell portion 577 of the shell body 574, and the end of the liquid inlet pipe 11 away from the transmission shaft 50 passes through the casing 1 and is exposed to the outside atmosphere. An oil seal 55 is provided on the outer side of the end of the transmission shaft 50 close to the liquid inlet pipe 11. The oil seal 55 is used to seal the liquid that may leak from the connection between the liquid inlet pipe 11 and the transmission shaft 50. In addition, in order to ensure the sealing stability of the oil seal 55, an assembly groove 575 is formed in the inner wall of the second shell portion 577 corresponding to the liquid inlet pipe 11, and the oil seal 55 is accommodated in the assembly groove 575. At the same time, since the transmission shaft 50 rotates when the roller brush assembly 2 is working, liquid leakage is inevitable at the connection between it and the stationary liquid inlet pipe 11. The cavity formed by the oil seal 55 and the assembly groove 575 is used to accommodate the leaked liquid without affecting other components.

[0059] like Figure 9 and Figure 10 As shown, in order to facilitate the user to disassemble the roller brush assembly 2, a handheld assembly 34 is further provided at the end of the roller brush barrel 3 away from the liquid inlet 31. The user can grab the handheld assembly 34 and pull it upward to remove the roller brush barrel 3.

[0060] Specifically, the handheld assembly 34 includes an inner insert 340 that is mated with the roller brush body 3, a second bearing 341, and a handle 342. The inner insert 340 has a mounting shaft 343 extending outward, and the second bearing 341 is disposed between the mounting shaft 343 and the handle 342. A rotating member 33 is disposed at one end of the roller brush body 3 away from the liquid inlet 31. The rotating member 33 is integrally formed and includes a main body 330, a circular protrusion 331 disposed at the center of the main body 330, and a pair of legs 332 symmetrically disposed on either side of the main body 330. The pair of legs 332 are engaged with the handle 342, and the inner wall of the housing 1 is provided with a circular groove 12 that mates with the circular protrusion 331.

[0061] The inner wall of the housing 1 is provided with a retaining groove 13 for receiving a handle 342. The opening 130 of the retaining groove 13 is upwardly directed. The handle 342 has a grip portion 344 for the user to grasp to remove the roller brush assembly 2. The grip portion 344 abuts against the edge of the opening 130. The upwardly directed opening 130 of the retaining groove 13 is intended to ensure that the grip portion 344 is always in an upward direction relative to the handle 342, making it easier for the user to grasp the handle 342.

[0062] like Figure 5 and Figure 11As shown, a cleaning device according to one embodiment of the present invention includes a cleaning device body, a liquid storage tank 8, a handle 9, a liquid pump and the above-mentioned floor brush assembly. The liquid storage tank 8 and the handle 9 are installed on the cleaning device body. The interior of the liquid storage tank 8 is provided with a first receiving chamber for receiving cleaning liquid and a second receiving chamber for storing waste liquid; the liquid pump is installed on the cleaning device body, and the liquid inlet end of the liquid pump is connected to the first receiving chamber; the floor brush assembly is installed at the bottom of the cleaning device body, and the liquid outlet end of the liquid pump is connected to the liquid inlet pipe 11 of the floor brush assembly.

[0063] The cleaning device also includes a waste liquid pipe 80 and a suction device, one end of the waste liquid pipe 80 is connected to the second receiving chamber, and the other end is connected to the other end of the wastewater channel 70 in the upper cover 7; the suction device is installed on the cleaning device body, and the suction device is at least configured to suck the ground waste liquid from the wastewater channel 70 into the second receiving chamber.

[0064] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A floor brush assembly, characterized in that: include: A housing (1), wherein the housing (1) is provided with an installation space (10); A roller brush assembly (2) is installed in the installation space (10), the roller brush assembly (2) comprising a roller brush barrel (3) and a cleaning element (4) arranged on the outer side of the roller brush barrel (3), a liquid storage chamber (30) is provided inside the roller brush barrel (3), one end of the liquid storage chamber (30) extends to the end surface of the roller brush barrel (3) and forms a liquid inlet (31), the liquid storage chamber (30) is used to receive cleaning liquid input from the outside through the liquid inlet (31); the outer peripheral surface of the roller brush barrel (3) is provided with a liquid outlet (32) communicating with the liquid storage chamber (30); A drive assembly (5) is arranged on a side of the housing (1) close to the liquid inlet (31), and the drive assembly (5) is dynamically connected to the roller brush barrel (3) to form one end of the liquid inlet (31), and is used to drive the roller brush assembly (2) to rotate around the axial direction of the roller brush barrel (3); A liquid inlet pipe (11) is further provided on one side of the housing (1) close to the liquid inlet (31), and the liquid inlet pipe (11) is in communication with the liquid inlet (31).

2. The floor brush assembly according to claim 1, characterized in that: The driving assembly (5) comprises a transmission shaft (50), the transmission shaft (50) being coaxially fixedly connected to the roller brush body (3); and a liquid supply channel (500) is provided in the transmission shaft (50), one end of the liquid supply channel (500) being in communication with the liquid inlet (31), and the other end being in communication with the liquid inlet pipe (11).

3. The floor brush assembly according to claim 2, characterized in that: A first coupling member (51) is further provided at one end of the transmission shaft (50) close to the liquid inlet (31), and a second coupling member (52) is provided at one end of the roller brush body (3) close to the liquid inlet (31). The first coupling member (51) and the second coupling member (52) are coupled and connected, and the interiors of the first coupling member (51) and the second coupling member (52) are both hollow so that the liquid inlet (31) and the liquid supply channel (500) are in communication with each other.

4. The floor brush assembly according to claim 3, characterized in that: A sealing ring (53) is provided between the first coupling member (51) and the second coupling member (52), and an annular groove (510) for accommodating the sealing ring (53) is provided on the outer peripheral surface of the first coupling member (51) or the inner peripheral surface of the second coupling member (52).

5. The floor brush assembly according to claim 3, characterized in that: The transmission shaft (50) and the first coupling member (51) are integrally formed by injection molding.

6. The floor brush assembly according to claim 2, characterized in that: The drive assembly (5) further includes a transmission assembly (57) having a housing (574), the liquid inlet pipe (11) being formed on the housing (574), and an oil seal (55) being sleeved on the outer side of one end of the transmission shaft (50) close to the liquid inlet pipe (11), the oil seal (55) being used to seal the connection between the liquid inlet pipe (11) and the transmission shaft (50).

7. The floor brush assembly according to claim 6, characterized in that: An assembly groove (575) is formed inwardly on the inner wall of the housing (574) corresponding to the liquid inlet pipe (11), and the oil seal (55) is accommodated in the assembly groove (575).

8. The floor brush assembly according to claim 6, characterized in that: The driving assembly (5) further includes a driving motor (56), and the transmission assembly (57) is used to transmit the rotational force of the driving motor (56) to the transmission shaft (50), thereby driving the roller brush body (3) to rotate; The transmission assembly (57) further comprises a driving wheel (571), a synchronous belt (572) and a driven wheel (573) arranged inside the housing (574); the driving wheel (571) is interference-fitted on the output shaft of the drive motor (56); the inner ring of the driven wheel (573) is integrally formed with a shaft sleeve (58) by injection molding; the shaft sleeve (58) is interference-fitted on the transmission shaft (50); and the synchronous belt (572) is mounted between the driving wheel (571) and the driven wheel (573).

9. The floor brush assembly according to claim 6, characterized in that: The drive assembly (5) further includes a first bearing (54), an inner ring of the first bearing (54) is interference-fitted with the transmission shaft (50), and an outer ring of the first bearing (54) is interference-fitted with the housing (574).

10. The floor brush assembly according to claim 1, characterized in that: A handheld component (34) is further provided at one end of the roller brush barrel (3) away from the liquid inlet (31). The handheld component (34) comprises an embedded component (340) matched with the roller brush barrel (3), a second bearing (341) and a handle (342). The embedded component (340) has a mounting shaft (343) extending outward, and the second bearing (341) is provided between the mounting shaft (343) and the handle (342).

11. The floor brush assembly according to claim 10, characterized in that: A rotating member (33) is provided at one end of the roller brush barrel (3) away from the liquid inlet (31), the rotating member (33) being integrally formed and comprising a main body (330), a circular protrusion (331) provided at the center of the main body (330), and a pair of supporting legs (332) symmetrically provided on both sides of the main body (330), the pair of supporting legs (332) being engaged with the handle (342), and a circular groove (12) being engaged with the circular protrusion (331) being provided on the inner wall of the housing (1).

12. The floor brush assembly according to claim 10, characterized in that: The inner wall of the housing (1) is provided with a limiting groove (13) for accommodating the handle (342), the opening (130) of the limiting groove (13) being arranged upward, and the handle (342) having a hand-held portion (344) for a user to hold in order to remove the roller brush assembly (2), the hand-held portion (344) being in contact with the upper edge of the opening (130).

13. The floor brush assembly according to claim 1, characterized in that: The floor brush assembly further comprises a viewing window cover (6), one end of the viewing window cover (6) being rotatably connected to the housing (1) and the other end being snap-connected to the housing (1), for covering the roller brush assembly (2).

14. The floor brush assembly according to claim 13, characterized in that: The floor brush assembly further comprises an upper cover (7), one end of the upper cover (7) being matched with the housing (1) and the other end being snap-connected with the housing (1), and a wastewater channel (70) being formed inside the upper cover (7), and one end of the wastewater channel (70) being arranged in contact with the ground.

15. A cleaning device, characterized in that: include: Cleaning device body; A liquid storage tank (8) is installed on the cleaning device body, wherein the interior of the liquid storage tank (8) is provided with a first receiving chamber for receiving cleaning liquid and a second receiving chamber for storing waste liquid; a liquid pump, mounted on the cleaning device body, wherein a liquid inlet end of the liquid pump is connected to the first receiving chamber; A floor brush assembly, wherein the floor brush assembly is the floor brush assembly according to any one of claims 1 to 14, the floor brush assembly is installed at the bottom of the cleaning device body, and the liquid outlet end of the liquid pump is connected to the liquid inlet pipe (11) of the floor brush assembly.

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