A brush assembly and a cleaning machine

Abstract

The application discloses a floor brush assembly and a cleaning machine, and solves the problem that when a transmission belt is detached from the bottom of the floor brush assembly, all parts of the bottom of the shell need to be detached. The floor brush assembly comprises a shell, a motor, a rolling brush and a transmission mechanism, wherein: corresponding to the position of the motor shaft, a first gap is arranged on the side plate, so that the first belt can be detached from the motor shaft; and / or corresponding to the position of the transmission shaft, a second gap is arranged on the side plate, and the opening of the second gap faces downward, so that after the first end cover is turned downward, the first end cover can be taken out from the second gap along the axial direction of the transmission shaft. The floor brush assembly and the cleaning machine provided by the application can detach the first belt from the motor shaft by means of the first gap, and can detach the rolling brush cover (i.e. the first end cover) by means of the second gap, and then the second belt and the synchronous belt can be detached; and the process of taking out the first belt and the second belt can be independently completed by the two gaps, and the two gaps do not affect each other.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a floor brush assembly and a cleaning machine. Background Technology

[0002] Carpet cleaning machines are widely used in homes, hotels, and other places as a cleaning tool. However, because carpet cleaning machines lack electronic protection devices, the drive belt and timing belt are most easily damaged when the floor brush gets clogged.

[0003] Currently, there are two main ways to replace drive belts and timing belts. One method is to remove them from the bottom of the floor brush and take out all the parts below the belt. Although this method makes it easy to remove the drive belt and timing belt, it removes too many parts and damages the overall structure of the machine. The other method is to make a large opening in the upper housing of the drive belt and timing belt and make a cover over the opening. Although this method does not damage the overall structure of the machine, it involves removing and installing parts on top of the machine, which affects the appearance of the machine. 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, which solves the problem that all the bottom parts of the housing need to be removed when disassembling the drive belt from the bottom of the floor brush assembly.

[0005] A first aspect of the present invention provides a floor brush assembly, comprising:

[0006] case;

[0007] The motor is installed at the rear of the housing, and the motor shaft is located on a side plate close to the housing.

[0008] A roller brush is installed at the lower front end of the housing;

[0009] The transmission mechanism includes a first belt, a first pulley, a second belt, a second pulley, and a drive shaft. The drive shaft is connected to a support plate between the motor and the roller brush. The first pulley and the second pulley are connected to the drive shaft and are located on opposite sides of the support plate, with the second pulley located closer to the side plate. The motor shaft of the motor is connected to the first pulley via the first belt. The roller brush is connected to the second pulley via the second belt.

[0010] in:

[0011] Corresponding to the position of the motor shaft, a first notch is provided on the side plate so that the first belt can be removed from the motor shaft;

[0012] And / or, the two ends of the roller brush are connected to the housing by a first end cap and a second end cap that can be flipped downwards, wherein the first end cap is located on the side near the side plate and is connected to the drive shaft. Corresponding to the position of the drive shaft, a second notch is provided on the side plate, the opening of the second notch facing downwards, so that after the first end cap is flipped downwards, it can be taken out from the second notch along the axial direction of the drive shaft.

[0013] Optionally, the diameter of the second pulley is smaller than the diameter of the first pulley;

[0014] And / or, a fixing component is installed on the drive shaft, the fixing component being located between the second pulley and the support plate; the first end cap is connectable to the fixing component, allowing the first end cap to rotate about the drive shaft;

[0015] And / or, the circumference of the fixing component is provided with axially arranged teeth.

[0016] Optionally, the second end cap is rotatably connected to the housing via a rotating structure, the rotating structure being arranged coaxially with the drive shaft;

[0017] And / or, the rotating structure includes a cylinder disposed on the second end cover and a cylindrical hole disposed in the housing, wherein the cylinder and the cylindrical hole are directly connected and rotatably fitted, or are connected and rotatably fitted through a bearing.

[0018] Optionally, there are two roller brushes, which are arranged in parallel, and the ends of the two roller brushes in the second end cover are connected by a timing belt to rotate synchronously.

[0019] Correspondingly, the second belt is connected to a roller brush that is closer to the second pulley.

[0020] Optionally, the housing further includes a first baffle structure detachably connected to the second notch;

[0021] And / or, the first baffle structure includes a first baffle and a first base plate, the first baffle and the first base plate being connected to form an L shape, wherein the first baffle is engaged with the second notch to seal the second notch, and the first base plate is fixedly connected to the support plate to restrict the first end cap from flipping downward.

[0022] Optionally, the housing further includes a second baffle structure detachably connected to the first notch;

[0023] And / or, the first notch is provided with a slot for the second baffle structure to be inserted and connected; the bottom of the second baffle structure is fixedly connected to the housing by screws.

[0024] Optionally, the floor brush assembly further includes two wheels connected to the rear sides of the housing, with the axle of one of the wheels detachably connected to the second baffle structure.

[0025] Correspondingly, the second baffle structure is provided with a shaft hole for connecting to the wheel axle, and an annular rib is provided around the shaft hole; and / or, the housing within the first notch is provided with a receiving portion for accommodating the wheel axle.

[0026] Optionally, the housing further includes a protective cover detachably attached to the housing below the first pulley;

[0027] And / or, a take-out port is provided on the housing between the first pulley and the motor shaft, so that the first belt can be pulled out through the take-out port;

[0028] Correspondingly, the protective cover can block the outlet.

[0029] Optionally, the housing is provided with an air guide tube, and correspondingly, the protective cover extends to the bottom of the air guide tube, and the protective cover is provided with a semi-circular notch adapted to the shape of the air guide tube to fix and support the air guide tube.

[0030] And / or, the side panel is a one-piece molded structure; or, the side panel is a modular molded structure, wherein the second notch and the first notch are located on different modular modules;

[0031] And / or, the housing may further include a top cover plate, which is detachably attached to the housing.

[0032] A second aspect of the present invention provides a cleaning machine including the floor brush assembly described in the first aspect.

[0033] Implementing this invention has the following beneficial effects:

[0034] The floor brush assembly and cleaning machine provided by the present invention have a first notch and a second notch on the side plate. The first notch can be used to remove the first belt from the motor shaft of the motor, and the second notch can be used to remove the roller brush cover (i.e. the first end cover). Then the second belt and the timing belt can be removed. Moreover, the process of removing the first belt and the second belt can be completed independently by the two notches without affecting each other.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0037] Figure 1 This is a schematic diagram of the overall structure of the cleaning machine in an embodiment of the present invention;

[0038] Figure 2 This is a schematic diagram of the overall structure of the cleaning machine in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0042] Figure 6 yes Figure 5 A magnified view of a portion of the image;

[0043] Figure 7 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of the disassembled state of the cleaning machine in an embodiment of the present invention;

[0046] Figure 10 yes Figure 9 A magnified view of a portion of the image.

[0047] The reference numerals in the figure:

[0048] 100 - Shell; 110 - Side plate; 111 - First notch; 112 - Second notch; 120 - Support plate; 130 - First baffle structure; 131 - First baffle; 132 - First bottom plate; 140 - Second baffle structure; 141 - Shaft hole; 150 - Receiving part; 160 - Protective cover; 161 - Semi-circular notch; 170 - Outlet; 180 - Air guide tube; 190 - Top cover plate;

[0049] 210 - Motor shaft;

[0050] 300 - Roller brush; 310 - First end cap; 320 - Second end cap; 321 - Cylindrical; 330 - Synchronous belt;

[0051] 410 - First belt; 420 - First pulley; 430 - Second belt; 440 - Second pulley; 450 - Drive shaft; 460 - Fixed component;

[0052] 500 - Walking wheel; 510 - Wheel axle. Detailed Implementation

[0053] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] like Figure 1-10 As shown, this embodiment provides a floor brush assembly, including a housing 100 and a motor (not shown in the figure), a transmission mechanism, a roller brush 300, and an air duct 180 disposed within the housing 100, wherein:

[0057] The housing 100 can be an integral structure or a combined structure. The lower front part of the housing 100 forms a roller brush mounting groove so that the roller brush 300 can be installed therein. The rear part is used to install the motor, control circuit, air duct and part of the transmission mechanism, etc.

[0058] The motor is installed at the rear of the housing 100, and the motor shaft 210 is located on the side plate 110 near the housing 100. When the motor is powered on, it transmits power to the roller brush 300 through the transmission mechanism to drive the roller brush 300 to rotate.

[0059] The roller brush 300 is installed at the lower front end of the housing 100. The bristles of the roller brush 300 are in contact with the ground, so that the roller brush 300 can clean the ground and rub and wash away the dirt on the ground during rotation.

[0060] The transmission mechanism includes a first belt 410, a first pulley 420, a second belt 430, a second pulley 440, and a transmission shaft 450. The transmission shaft 450 is connected to a support plate 120 between the motor and the roller brush 300. The support plate 120 is fixed in the housing 100 and provides support for the two pulleys of the entire transmission mechanism, making the transmission more stable. The first pulley 420 and the second pulley 440 are both connected to the transmission shaft 450, and the first pulley 420 and the second pulley 440 are located on the two sides of the support plate 120. On one side, the second pulley 440 is located near the side plate 110, and the first pulley 420 is located away from the side plate 110. The motor shaft 210 of the motor is connected to the first pulley 420 through the first belt 410, thereby driving the first pulley 420 to rotate. Since the first pulley 420 and the second pulley 440 are driven by the transmission shaft 450, the second pulley 440 rotates synchronously with the first pulley. The roller brush 300 is connected to the second pulley 440 through the second belt 430, thereby rotating under the drive of the second pulley 440.

[0061] in:

[0062] Combination Figure 8-10 As shown, corresponding to the position of the motor shaft 210, a first notch 111 is provided on the side plate 110, so that the first belt 410 can be removed from the motor shaft 210. Since the first pulley 420 is located on the side away from the side plate 110, the first belt 410 can be removed from the first pulley 420 inward (when it needs to be reinstalled, simply install the first belt 410 on the first pulley 420 from the opposite direction). Thus, the floor brush assembly provided in this embodiment can be disassembled by simply using the first notch 111, without having to open the parts at the bottom of the entire housing. The operation is simple, time-saving, labor-saving, and reduces the damage to the floor brush assembly caused by disassembly.

[0063] Combination Figure 3-6As shown, the two ends of the roller brush 300 are connected to the housing 100 in a downward-flipping manner via a first end cap 310 and a second end cap 320. The first end cap 310 is located on the side near the side plate 110 and is connected to the drive shaft 450. Corresponding to the position of the drive shaft 450, a second notch 112 is provided on the side plate 110. The opening of the second notch 112 faces downward, allowing the first end cap 310 to be removed from the second notch 112 along the axial direction of the drive shaft 450 after it is flipped downward. The two end caps have the same or similar shapes and can adopt an L-shaped or arc-shaped structure. Under the rotation of the end caps, the roller brush 300 can be flipped downward relative to the housing 100 by the action of the two end caps, thereby separating the roller brush 300 from the housing 100. Because of the second notch 112 provided on the side plate 110 on the outer side of the first end cover 310, when the first end cover 310 is flipped down to a certain angle, the first end cover 310 can be separated from the housing 100 through the second notch 112, thereby exposing the second belt 430, the second pulley 440 and the synchronous pulley at the end of the roller brush 300 housed in the first end cover 310, so that the operator can remove the second belt 430 and directly replace it with a new belt.

[0064] When there are two or more roller brushes 300, they are usually connected by a timing belt 330. If the timing belt 330 needs to be replaced, simply follow the steps above and remove the roller brushes 300 from the second end cover 320 to replace the timing belt 330. Figure 7 (As shown).

[0065] Optionally, the diameter of the second pulley 440 is smaller than the diameter of the first pulley 420 (reference). Figure 10 This further reduces the linear speed of the second pulley 440 on top of the reduced speed of the first pulley 420, achieving a two-stage speed reduction effect.

[0066] Further integration Figure 5-6 A fixing component 460 is installed on the drive shaft 450. The fixing component 460 is located between the second pulley 440 and the support plate 120, and the fixing component 460 is integrally formed with the support plate 120. The first end cover 310 can be connected to the fixing component 460, allowing the first end cover 310 to rotate around the drive shaft 450. Thus, after the first end cover 310 is connected to the fixing component 460, the first end cover 310 and the fixing component 460 form a receiving space, which can accommodate the second pulley 440 inside the first end cover 310. The circumference of the fixing component 460 is provided with axially arranged teeth, so that it can axially mate with the first end cover 310, facilitating the removal of the first end cover 310 from the fixing component 460, and limiting the mutual positioning of the two in the circumferential direction.

[0067] refer to Figure 7 The second end cap 320 is rotatably connected to the housing 100 through a rotating structure. The rotating structure is coaxially arranged with the drive shaft 450, so that the second end cap 320 can rotate coaxially with the first end cap 310, thereby driving the roller brush 300 to separate from the housing 100.

[0068] Optionally, the rotating structure includes a cylinder 321 disposed on the second end cover 320 and a cylindrical hole (not shown in the figure) disposed in the housing 100. The cylinder 321 and the cylindrical hole can be directly connected and rotatably fitted, or the cylinder 321 and the cylindrical hole can be connected and rotatably fitted through a bearing. In this embodiment, by adding a bearing, the friction between the cylinder 321 and the cylindrical hole can be reduced, allowing the second end cover 320 to be used for a longer period of time, while preventing damage to the housing 100 due to rotational friction.

[0069] Optionally, there may be two or more roller brushes 300. This embodiment uses two roller brushes 300 as an example. The two roller brushes 300 are arranged in parallel, and their ends in the second end cover 320 are connected by a timing belt 330 to rotate synchronously. Correspondingly, the second belt 430 is connected to the roller brush 300 closer to the second pulley 440, thereby shortening the transmission path and increasing the transmission efficiency. Typically, timing pulleys are provided at the ends of the two roller brushes 300, and the timing belt 330 can be mounted on the timing pulleys to achieve synchronous rotation of the two roller brushes. When three roller brushes are used, a timing belt is further added between the second and third roller brushes 300. For details, please refer to the embodiment with two roller brushes, which will not be repeated here.

[0070] The housing 100 also includes a first baffle structure 130, which is detachably connected to the second notch 112. The shape of the first baffle structure 130 is adapted to the shape of the second notch 112, so that when the first baffle structure 130 is connected to the second notch 112, the second notch 112 can be sealed, and the structure in the second notch 112 is not visible from the outside, thus ensuring the overall aesthetic appearance of the housing 100.

[0071] Combination Figure 2-5 Alternatively, the first baffle structure 130 includes a first baffle 131 and a first base plate 132, which are connected to form an L-shape. The first baffle 131 is engaged with a second notch 112 to seal the second notch 112, and the first base plate 132 is fixedly connected to the support plate 120 to restrict the first end cap 310 from flipping downward. When the first baffle structure 130 is fixedly connected to the second notch 112, the first base plate 132 is located below the first end cap 310, thereby restricting the first end cap 310 from flipping downward and preventing the first end cap 310 and the roller brush 300 on it from detaching from the housing 100, thus ensuring the structural stability of the floor brush assembly.

[0072] Combination Figure 8-10 The housing 100 also includes a second baffle structure 140, which is detachably connected to the first notch 111. The shape of the second baffle structure 140 is adapted to the shape of the first notch 111, so that after the second baffle structure 140 is connected to the first notch 111, it can completely seal the first notch 111. Optionally, the second baffle structure 140 can be fixedly connected to the bottom of the housing 100 by screws.

[0073] Further options include combining Figure 10 A slot is provided in the first notch 111 for the second baffle structure 140 to be inserted and connected. After the second baffle structure 140 is connected to the first notch 111, the first notch 111 can provide a limiting and fixing function for the second baffle structure 140, making the structure of the connected second baffle structure 140 and the first notch 111 more stable and reducing deformation. The bottom of the second baffle structure 140 is fixedly connected to the housing 100 by screws, thereby fixing the bottom of the second baffle structure 140. This fixing method also makes it easy to disassemble the second baffle structure 140, that is, only the screws need to be removed from the bottom of the housing 100.

[0074] Alternatively, the floor brush assembly may further include two wheels 500 for supporting the movement of the floor brush assembly. The wheels 500 are connected to the rear sides of the housing 100, and the axle 510 of one of the wheels 500 is detachably connected to the second baffle structure 140. In this embodiment, one wheel 500 and the second baffle structure 140 are combined into a detachable module, thereby making more rational use of the overall structural layout of the floor brush assembly. The wheel 500 can conceal the entire second baffle structure 140, further ensuring the integrity and aesthetics of the floor brush assembly.

[0075] like Figure 8 As shown, alternatively, the second baffle structure 140 is provided with a shaft hole 141 connected to the wheel axle 510, and an annular rib is provided around the shaft hole. The annular rib reduces the contact area between the traveling wheel 500 and the second baffle structure 140, reduces friction, and thus reduces the resistance of the traveling wheel 500. On the other hand, the annular rib can also increase the structural strength of the second baffle structure 140, so that the second baffle structure 140 has better stability.

[0076] Combination Figure 10 As shown, the housing 100 within the first notch 111 is provided with a receiving portion 150 for accommodating the axle 510. On the one hand, it can provide clearance for the axle 510, and on the other hand, the irregular structure design of the receiving portion 150 can further improve the structural strength of the housing 100.

[0077] The housing 100 also includes a protective cover 160, which is detachably connected to the housing 100 below the first pulley 420 and can protect the structure and components (such as the first pulley 420) above the protective cover 160 to prevent water or debris from entering the transmission mechanism above the protective cover.

[0078] An outlet 170 is provided on the housing 100 between the first pulley 420 and the motor shaft 210, so that the first belt 410 can be pulled out through the outlet 170.

[0079] Correspondingly, the protective cover 160 can block the outlet 170, thereby further improving the sealing of the housing and preventing water or debris from entering the housing through the outlet 170 and affecting the operation of the motor and other electrical components.

[0080] The housing 100 is provided with an air guide tube 180. Correspondingly, the protective cover 160 extends to the bottom of the air guide tube 180, and the protective cover 160 is provided with a semi-circular notch 161 that matches the shape of the air guide tube 180, so as to fix and support the air guide tube 180.

[0081] The side panel 110 is a one-piece molded structure, which can give the entire shell 100 good structural strength; or, the side panel 110 is a modular molded structure, with the second notch 112 and the first notch 111 located on different modular modules, making it easier for the side panel to adapt to the shape of the notch and to design different modular modules separately.

[0082] The housing 100 also includes an upper cover plate 190, which is detachably connected to the housing 100. In the technical solution of the present invention, it is not necessary to open the upper cover plate 190 when replacing the belt and the timing belt, so that the upper cover plate 190 can be designed as an integral structure, which is aesthetically pleasing and has higher structural strength, and can better protect the internal structure and components of the housing.

[0083] like Figure 1-10 As shown, this embodiment also provides a cleaning machine, including the floor brush assembly provided in the above embodiments.

[0084] The cleaning machine provided by the present invention has a first notch and a second notch on the side plate of the floor brush assembly. The first notch can be used to remove the first belt from the motor shaft of the motor, and the second notch can be used to remove the roller brush cover (i.e. the first end cover), thereby removing the second belt and the timing belt. Moreover, the process of removing the first belt and the second belt can be completed independently by the two notches without affecting each other.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0086] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A floor brush component, comprising: case; The motor is installed at the rear of the housing, and the motor shaft is located on a side plate close to the housing. A roller brush is installed at the lower front end of the housing; The transmission mechanism includes a first belt, a first pulley, a second belt, a second pulley, and a drive shaft. The drive shaft is connected to a support plate between the motor and the roller brush. The first pulley and the second pulley are connected to the drive shaft and are located on opposite sides of the support plate, with the second pulley located closer to the side plate. The motor shaft is connected to the first pulley via the first belt. The roller brush is connected to the second pulley via the second belt. Its characteristic is that, wherein: Corresponding to the position of the motor shaft, a first notch is provided on the side plate so that the first belt can be removed from the motor shaft; The two ends of the roller brush are connected to the housing by a first end cap and a second end cap that can be flipped downwards. The first end cap is located on the side closer to the side plate and is connected to the drive shaft. Corresponding to the position of the drive shaft, a second notch is provided on the side plate. The opening of the second notch faces downwards, so that after the first end cap is flipped downwards, it can be taken out from the second notch along the axial direction of the drive shaft.

2. The floor brush assembly according to claim 1, characterized in that, The diameter of the second pulley is smaller than the diameter of the first pulley; And / or, a fixing component is installed on the drive shaft, the fixing component being located between the second pulley and the support plate; the first end cap is connectable to the fixing component, allowing the first end cap to rotate about the drive shaft; And / or, the circumference of the fixing component is provided with axially arranged teeth.

3. The floor brush assembly according to claim 1, characterized in that, The second end cap is rotatably connected to the housing via a rotating structure, the rotating structure being arranged coaxially with the drive shaft; And / or, the rotating structure includes a cylinder disposed on the second end cover and a cylindrical hole disposed in the housing, wherein the cylinder and the cylindrical hole are directly connected and rotatably fitted, or the cylinder and the cylindrical hole are connected and rotatably fitted through a bearing.

4. The floor brush assembly according to claim 1, characterized in that, There are two roller brushes, which are arranged in parallel, and the ends of the two roller brushes in the second end cover are connected by a timing belt to rotate synchronously. Correspondingly, the second belt is connected to a roller brush that is closer to the second pulley.

5. The floor brush assembly according to claim 1, characterized in that, The housing also includes a first baffle structure, which is detachably connected to the second notch; And / or, the first baffle structure includes a first baffle and a first base plate, the first baffle and the first base plate being connected to form an L shape, wherein the first baffle is engaged with the second notch to seal the second notch, and the first base plate is fixedly connected to the support plate to restrict the first end cap from flipping downward.

6. The floor brush assembly according to claim 1, characterized in that, The housing also includes a second baffle structure, which is detachably connected to the first notch; And / or, the first notch is provided with a slot for the second baffle structure to be inserted and connected; the bottom of the second baffle structure is fixedly connected to the housing by screws.

7. The floor brush assembly according to claim 6, characterized in that, The floor brush assembly also includes two walking wheels connected to the rear sides of the housing, with the axle of one of the walking wheels detachably connected to the second baffle structure. Correspondingly, the second baffle structure is provided with a shaft hole for connecting to the wheel axle, and an annular rib is provided around the shaft hole; and / or, the housing within the first notch is provided with a receiving portion for accommodating the wheel axle.

8. The floor brush assembly according to claim 1, characterized in that, The housing also includes a protective cover, which is detachably attached to the housing below the first pulley; And / or, a take-out port is provided on the housing between the first pulley and the motor shaft, so that the first belt can be pulled out through the take-out port; Correspondingly, the protective cover can block the outlet.

9. The floor brush assembly according to claim 8, characterized in that, The housing is provided with an air guide tube. Correspondingly, the protective cover extends to the bottom of the air guide tube, and the protective cover is provided with a semi-circular notch that matches the shape of the air guide tube to fix and support the air guide tube. And / or, the side panel is a one-piece molded structure; or, the side panel is a modular molded structure, wherein the second notch and the first notch are located on different modular modules; And / or, the housing may further include a top cover plate, which is detachably attached to the housing.

10. A cleaning machine, characterized in that, Includes the floor brush assembly as described in any one of claims 1-9.

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