A floor brush module for a cleaning machine and a cleaning machine

Abstract

The present application relates to a floor brush module for a cleaning machine, wherein a flow channel is formed between the lower edge of the housing mounting hole and the ground to be cleaned, the suction force generated by the negative pressure source directly acts in the flow channel and completes the suction function, so that the air inlet, air guide and air outlet are always maintained in the plane area where the flow channel is located during the whole negative pressure cleaning process. Compared with the traditional cleaning machine with a dust suction chamber, the fluid does not need to move vertically, but only needs to flow in the plane area, which not only avoids the loss of suction force, but also effectively prevents the particles from gathering in the large volume dust suction chamber. In addition, the brush is arranged in the form of extending into the flow channel, which can greatly improve the flow rate of the airflow in the flow channel during the process of the fluid entraining particles being sucked, and form a plane cyclone, so that the decontamination ability of the fluid is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of household cleaning tools, specifically to a floor brush module for a cleaning machine and a cleaning machine. Background Technology

[0002] With the development of household cleaning technology, household cleaning equipment has become increasingly diversified, and more and more cleaning devices have entered thousands of households. Traditional vacuum cleaners have certain limitations in their use. The structural design and sealing of their components can only meet the requirements of dry environments, but not wet environments. In a wet environment, the wastewater carried by the suction airflow will inevitably seep into the motor under the action of negative pressure. Once water enters the motor through the gaps in the motor housing, it can easily lead to motor failure and damage.

[0003] Obviously, cleaning machines that can only vacuum dust but not water cannot meet the needs of consumers. To address this, some companies have developed floor scrubbers that can be used in both dry and wet environments. In particular, they have made certain improvements to the dust collection bin of the floor scrubber, which allows for better separation of dry and wet waste, thereby preventing water vapor from flowing towards the negative pressure source. For example, Chinese invention application CN202010568160.1 (publication announcement number: CN111820816A) discloses "A wastewater tank assembly for both wet and dry use in a water scrubber". A wastewater inlet pipe is located at the bottom of the wastewater tank. The filter assembly is placed inside the wastewater tank and fitted onto the wastewater inlet pipe. A tank cover assembly is installed on the wastewater tank. After the mixed fluid passes through the wastewater tank, the liquid and solid remain in the wastewater tank, while the airflow continues to flow downstream to the negative pressure source. An air outlet is located at the end of the floor scrubber's air path, i.e., on the outer shell of the blower module in the floor scrubber. The airflow drawn by the negative pressure is finally discharged from the air outlet. However, since only the negative pressure source serves as the main force for dust collection, it cannot effectively clean some stubborn stains. Furthermore, due to the limited rotation of the roller brush, the water sprayed on the surface to be cleaned is only used once or twice before being sucked away by the negative pressure, resulting in a relatively limited cleaning effect.

[0004] To address this issue, the applicant has made certain improvements to the traditional roller brush cleaning mode, proposing an alternative cleaning method. A "Surface Cleaning Integrated Structure" is disclosed in Chinese invention application CN201911094051.4 (publication announcement number CN112773255A). This cleaning device incorporates a brush inside a vacuum cleaner. The brush can rotate axially within the vacuum cleaner, meaning its rotation axis extends vertically, unlike the horizontal arrangement of a traditional roller brush. This brush arrangement enhances the flow field in the central area of ​​the surface during operation, reducing dirt residue in the central area when combined with the cleaning fluid. This avoids the situation in roller brush mode where the water cleaning capacity is only utilized once or twice before being sucked away by negative pressure, making it more suitable for heavy-duty cleaning in wet environments.

[0005] Although the aforementioned dust collection device improves upon the drawbacks of roller brushes, the brush itself has a certain height. To ensure the brush's airflow gain during cleaning, it must be placed in the fluid flow path. To avoid affecting fluid output, the exhaust is located at the top of the dust collection cylinder, while the air inlet is located at the bottom for convenient suction. This results in the dust collection cylinder's internal chamber needing a certain vertical depth, forming a three-dimensional cyclone. After the negative pressure fluid carrying dust particles is sucked into the dust collection cylinder, it needs to travel a relatively long distance vertically.

[0006] This approach has several drawbacks, the most obvious being:

[0007] 1. Because the fluid flows from front to back during cleaning, which is the same as the direction of movement of the cleaning machine, most of the dirt needs to turn at least twice to enter and exit the vacuum cleaner after entering the vacuum cleaner. When the fluid and the solid particles it carries are turned, they hit the inner wall of the vacuum cleaner, which greatly increases the noise level.

[0008] 2. The inside of the vacuum cleaner canister has an irregular shell section due to the need to install brushes and other parts. In both dry and wet environments, the long airflow distance makes these areas prone to accumulating dirt and grime, which is extremely difficult to clean, and the user experience needs to be improved.

[0009] 3. The fluid movement path is relatively long, and the suction force of the negative pressure source is damaged. Summary of the Invention

[0010] The first technical problem to be solved by the present invention is to provide a floor brush module for a cleaning machine that avoids vertical flow of fluid in the flow channel, in light of the current state of the prior art.

[0011] The second technical problem to be solved by the present invention is to provide a floor brush module for a cleaning machine that effectively disperses the cleaning fluid and distributes it evenly within the flow channel, in light of the current state of the prior art.

[0012] The third technical problem to be solved by the present invention is to provide a cleaning machine having the above-mentioned floor brush module, in view of the current state of the prior art.

[0013] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a floor brush module for a cleaning machine, comprising:

[0014] The housing has an air inlet for dust collection and an air outlet for connecting to the cleaning machine's fan module.

[0015] The housing has a vertically extending mounting hole on the front side of the brush module's travel direction. A gap exists between the mounting hole and the surface to be cleaned, forming a front-to-back extending flow channel. Along the fluid flow path, this flow channel is located between the air inlet and outlet, and the fluid flow direction within the channel intersects with the extension direction of the mounting hole. This reduces the longitudinal depth of the internal chamber, allowing some dirt to enter and exit with only one turn. The shorter fluid path reduces negative pressure loss and lowers wind noise.

[0016] A brush is rotatably mounted at a mounting hole in the housing with its axis of rotation extending vertically, and the lower part of the brush extends into the flow channel.

[0017] To further ensure that the direction of the entire airflow path is always confined within the flow channel, preferably, the bottom wall of the housing has an annular wall around the lower edge of the corresponding mounting hole, and both the air inlet and the air outlet are opened on the annular wall.

[0018] The ring wall can be a separate component. To ensure the flatness of the housing and avoid dust accumulation, the ring wall is preferably formed by extending downward from the bottom wall of the housing.

[0019] To ensure the supply of cleaning fluid into the flow channel, preferably, a distributor is also provided inside the housing, the distributor having a liquid outlet arranged adjacent to the mounting hole and in fluid communication with the flow channel.

[0020] To ensure that the liquid has a sufficiently long residence time in the flow channel and to avoid being directly sucked away by negative pressure, the liquid outlet opening is preferably arranged downwards.

[0021] To ensure a smooth supply of cleaning fluid, preferably, the housing is provided with a guide hole that extends in the same direction as the mounting hole and communicates with the liquid outlet, and the guide hole is arranged in the area enclosed by the annular wall.

[0022] Specifically, the liquid dispenser includes a strip-shaped body and a flow guide seat formed at the end of the body. The bottom of the flow guide seat has a liquid outlet end that extends downward into a flow guide hole, and the liquid outlet is located on the liquid outlet end.

[0023] The brush can be in different shapes to perform the washing action. Preferably, the brush includes a base and a flexible brush plate, which is installed at the bottom of the base and located in the flow channel.

[0024] To further address the second technical problem mentioned above, the technical solution adopted in this invention is as follows: the base is disc-shaped, the brush plate extends to the outer edge of the base, and the rotation path of the brush plate passes through the liquid outlet. This arrangement of the brush plate, during rotation, not only scrubs the surface to be cleaned but also disperses the cleaning liquid sprayed from the liquid outlet. Since the entire airflow spends a relatively short time within the flow channel, this dispersing cleaning liquid significantly improves the uniform distribution of the cleaning liquid, resulting in a substantial increase in cleaning ability. The cleaning liquid mentioned here can be water, detergent, etc.

[0025] Specifically, the bottom of the base is provided with a positioning groove at the position corresponding to the brush plate, and the brush plate is installed in the positioning groove.

[0026] Preferably, the bottom of the base extends downward to form a mounting base, the positioning groove is formed on the mounting base, and the positioning groove has an insertion port on the side wall adjacent to the outer edge of the base, through which the brush plate is inserted into the positioning groove.

[0027] To facilitate lateral disassembly of the brush plate, preferably, the diameter of the insertion port gradually decreases from top to bottom.

[0028] Specifically, in order to create a vertical limit for the brush plate, the sidewall of the positioning groove extends inward to form a retaining edge, and there are laterally extending retaining edges on both sides of the brush plate. When the brush plate is inserted into the positioning groove, the retaining edge is located above the retaining edge, so that the brush plate is vertically limited in the positioning groove.

[0029] The brush can rotate under negative pressure to clean the surface, or it can be driven by an external driving force to actively sweep. Preferably, a driving mechanism is provided on the front side of the housing, and the power output end of the driving mechanism is connected to the brush.

[0030] To ensure that the floor brush module covers a sufficient cleaning area, preferably, there are at least two flow channels arranged at intervals on the front side of the housing, and each flow channel is provided with a corresponding brush. The output end of the drive mechanism has at least two drive shafts, each of which extends vertically and can rotate around its own axis. The brush is mounted on the drive shaft and can rotate synchronously with the drive shaft.

[0031] Specifically, the front side of the housing has a notch, the drive mechanism is detachably mounted at the notch, and the housing has a vertical through-hole forming the mounting hole at a position corresponding to the notch.

[0032] Preferably, the flow channels are arranged in groups, with each group consisting of two flow channels and having an exhaust channel, and the two flow channels in the same group are connected to the exhaust channel through their respective air outlets.

[0033] The flow channels are four in number and form two groups. The brushes in the two groups of flow channels rotate in opposite directions, so that the two exhaust channels meet at the middle of the rear side of the housing.

[0034] To further solve the third technical problem mentioned above, the technical solution adopted by the present invention is as follows: a cleaning machine having the above-mentioned floor brush module, further comprising a separation module for separating fluid and a fan module for providing a negative pressure source, wherein the floor brush module, the separation module and the fan module are arranged sequentially along the fluid flow path, the inlet end of the separation module is in fluid communication with the air outlet, and the outlet end of the separation module is in fluid communication with the inlet end of the fan module.

[0035] Compared with the prior art, the advantages of the present invention are as follows: In the floor brush module for the cleaning machine, the flow channel formed between the mounting hole on the front side of the housing and the floor to be cleaned, and the suction force generated by the cleaning machine's fan module as a negative pressure source, can be directly transmitted to the flow channel, so that the fluid carrying dust enters the flow channel from the air inlet and is discharged from the air outlet. Since the flow channel extends front and back and the flow direction of the fluid in the flow channel intersects with the extension direction of the mounting hole, the flow of the fluid in the flow channel is completely constrained within the planar area formed by the flow channel, avoiding vertical movement of the fluid. Compared with the traditional floor brush module with a chamber, it not only avoids suction loss, but also effectively prevents particles from accumulating in a large-volume dust collection chamber. In addition, the arrangement of the brush pieces extending into the flow channel, while ensuring the cleaning effect during the process of the fluid carrying particles being sucked up, can also greatly increase the airflow velocity in the flow channel, thereby forming a planar cyclone, which greatly improves the cleaning ability of the fluid. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the floor brush module in an embodiment of the present invention;

[0037] Figure 2 for Figure 1 A schematic diagram of the overall structure omitting the drive mechanism;

[0038] Figure 3 for Figure 2 A schematic diagram of the separator's installation on the housing, omitting some structural elements;

[0039] Figure 4 for Figure 1 A schematic diagram of the overall structure from another angle;

[0040] Figure 5 for Figure 3A cross-sectional view from another angle;

[0041] Figure 6 This is a schematic diagram of fluid flow (the air inlet, flow channel, and air outlet are arranged in sequence, and other components are omitted);

[0042] Figure 7 for Figure 6 Schematic diagram of the location of the central air inlet and airflow channel;

[0043] Figure 8 for Figure 1 Another perspective of the exploded view;

[0044] Figure 9 for Figure 8 A schematic diagram from another angle, omitting the drive mechanism;

[0045] Figure 10 This is an overall schematic diagram of the liquid dispenser in an embodiment of the present invention;

[0046] Figure 11 for Figure 10 An enlarged view from another angle;

[0047] Figure 12 This is an overall schematic diagram of the drive mechanism in an embodiment of the present invention;

[0048] Figure 13 This is an overall schematic diagram of the brush component;

[0049] Figure 14 for Figure 13 Another perspective of the exploded view;

[0050] Figure 15 This is a schematic diagram of the overall cleaning machine in an embodiment of the present invention;

[0051] Figure 16 This is a schematic diagram of the gas path of the present invention;

[0052] Figure 17 This is a schematic diagram of the second type of exhaust duct structure;

[0053] Figure 18 This is a schematic diagram of the third type of exhaust duct structure. Detailed Implementation

[0054] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0055] like Figures 1 to 18As shown, this is a preferred embodiment of the present invention. In this embodiment, the floor brush module is used in a cleaning machine. The cleaning machine also includes a separation module 02 for separating fluids and a fan module 03 for providing a negative pressure source. The floor brush module 01, the separation module 02, and the fan module 03 are arranged sequentially along the fluid flow path. The floor brush module includes a housing 1 and a brush 5. The housing 1 has an air inlet 1b and an air outlet 1d. Along the fluid flow path, the air inlet 1b is located upstream of the air outlet 1d. The inlet end of the separation module 02 is in fluid communication with the air outlet 1d, and the outlet end of the separation module 02 is in fluid communication with the inlet end of the fan module 03.

[0056] To achieve negative pressure cleaning, the aforementioned housing 1 has a vertically extending mounting hole 17. A gap is left between the lower edge of the mounting hole 17 and the surface 102 to be cleaned, forming a front-to-back extending flow channel 100. The aforementioned air inlet 1b and air outlet 1d are both connected to this flow channel 100, and the direction of fluid flow within the flow channel 100 intersects the extending direction of the mounting hole 17. The fluid flow direction mentioned here refers to the fact that airflow in all directions within the flow channel 100 can be maintained in a roughly horizontal region. Since the mounting hole 17 extends vertically, it can be understood that the extending direction of the mounting hole 17 is perpendicular to the horizontal region through which the airflow passes (i.e., the two intersect). Specifically, the bottom wall of the aforementioned housing 1 has an annular wall 18 around the lower edge of the corresponding mounting hole 17. Both the air inlet 1b and the air outlet 1d are located on the annular wall 18. The air inlet and outlet directions can be arranged along the extension direction of the flow channel 100 to reduce suction loss. However, in this embodiment, to facilitate the formation of a planar cyclone and enhance the scrubbing force of the fluid, both the air inlet 1b and the air outlet 1d are located on the side of the annular wall 18 along the travel direction of the floor brush module. The annular wall 18 can be formed in different ways. In this embodiment, the annular wall 18 is formed by extending downwards from the bottom wall of the housing 1 and is integrally molded during production, thus preventing dirt from accumulating in the gaps during use.

[0057] In addition to its negative pressure cleaning function, this cleaning machine can also supply cleaning fluid to the cleaning area. A distributor 4 is installed inside the housing 1. The distributor 4 has a liquid inlet 4a and a liquid outlet 4b, and its hollow interior forms a flow channel 44. Along the fluid flow path, the liquid inlet 4a is located upstream of the flow channel 44, and the liquid outlet 4b is arranged adjacent to the mounting hole 17 and upstream of the flow channel 100. This arrangement of the liquid outlet 4b eliminates the need for other liquid supply components; the negative pressure suction of the negative pressure source can directly draw the cleaning fluid. With sufficient cleaning fluid stored inside the housing, simply activating the negative pressure will simultaneously supply the cleaning fluid, which is very convenient. Of course, for some cleaning fluids that require sealed storage, a pumping method can also be used for supply. For example, a pump body 12 and a delivery pipe 13 can be installed on the rear side of the housing 1, with the delivery pipe 13 connecting the pump body 12 and the liquid inlet 4a. In actual production, two liquid supply schemes can be selected, and the liquid supply mode can be switched by changing the connection position of the pipeline during use.

[0058] Liquid outlet 4b can have different outlet directions, as long as it can provide cleaning fluid. However, in this embodiment, the liquid outlet 4b is arranged with its opening facing downwards. Because the flow channel 100 in this application prevents the fluid from flowing vertically, the rapidly passing airflow will be sucked away by negative pressure before the liquid can fully contact the surface 102 to be cleaned. Therefore, this downward arrangement of the liquid outlet ensures that the liquid has a longer movement path and residence time in the flow channel 100, guaranteeing a better cleaning effect. To facilitate the flow of the cleaning fluid, a guide hole 11 is provided on the housing 1, extending in the same direction as the mounting hole 17 and communicating with the liquid outlet 4b. The guide hole 11 is arranged within the area enclosed by the annular wall 18.

[0059] The liquid dispenser 4 described above can have different specific forms. In this embodiment, the liquid dispenser 4 includes a strip-shaped body 41 and flow guide seats 42 formed at the ends of the body. Flow guide seats 42 are provided at both ends of the body 41 on the first side, and each flow guide seat 42 has at least one liquid outlet 4b. The flow guide seats 42 have an arc-shaped structure with both ends bent towards the first side, and each flow guide seat 42 has a downwardly extending liquid outlet end 43 at the bottom of both ends, with the liquid outlet 4b opened on the liquid outlet end 43. In order to achieve liquid distribution, the flow channel 44 includes a first flow channel 441 formed in the body 41 and a second flow channel 442 formed in each flow guide seat 42, and each second flow channel 442 extends in the same direction as the first flow channel 441 and at least partially overlaps it. In addition, a slow-flow channel 443 is provided at the connection between each second flow channel 442 and the first flow channel 441. The extension direction of the slow-flow channel 443 intersects the extension directions of the first flow channel 441 and the second flow channel 442. This design of the slow-flow channel 443 ensures that the liquid input from the liquid inlet 4a does not fluctuate in volume. The pressure is distributed through the slow-flow channel 443 to ensure uniform liquid output from the liquid outlet 4b.

[0060] In this embodiment, the liquid inlet 4a is located on the first side of the body 41 and in the middle of the body 41. The first flow channel 441 has a guide portion 45 on its inner sidewall opposite to the liquid inlet 4a for diverting liquid to both sides of the liquid inlet 4a. In this embodiment, the guide portion 45 is a protrusion extending from the inner sidewall of the first flow channel 441 toward the liquid inlet 4a, and the inner sidewall of the first flow channel 441 smoothly transitions from the protrusion to both sides.

[0061] In this embodiment, the brush component 5 adopts a special shape design, namely, the brush component 5 includes a base 51 and a flexible brush plate 52, wherein the base 51 is disc-shaped, and the brush plate 52 is strip-shaped and there is at least one of them, which is installed at the bottom of the base 51 and arranged radially relative to the center of the base 51. In order to realize the installation and removal of the brush plate 52, the bottom of the base 51 is provided with a positioning groove 53 at the position corresponding to the brush plate 52, and the brush plate 52 can be detachably installed in the positioning groove 53. Specifically, a mounting base 54 extends downward from the bottom of the base 51, and the positioning groove 53 is formed on the mounting base 54. The positioning groove 53 has an insertion port 55 on the side wall adjacent to the outer edge of the base 51, and the brush plate 52 is inserted into the positioning groove 53 through the insertion port 55.

[0062] To ensure the vertical positioning of the brush plate 52, the brush 52 employs two safety measures. Firstly, the diameter of the insertion port 55 gradually narrows from top to bottom, ensuring that even if the brush plate 52 tends to move downwards, it will be "clamped" by the insertion port 55. Secondly, a retaining edge 531 extends inwards from the side wall of the positioning groove 53, corresponding to laterally extending retaining edges 521 on both sides of the brush plate 52. When the brush plate 52 is inserted into the positioning groove 53, the retaining edge 531 is positioned above the retaining edge 521, thus vertically positioning the brush plate 52 within the positioning groove 53. Of course, to avoid the risk of the brush plate 52 falling off, it can also be integrally molded onto the base 51 during injection molding. In actual production, if cost is not a consideration, the integral molding design can significantly reduce the rotational defects of the brush 52 itself. For example, during assembly, a detachable design can cause the component to wobble, generate noise, and potentially accumulate dust in the pores. Therefore, an integral molding design is preferred.

[0063] In addition to scrubbing the surface 102, brush 5 also plays a crucial role in evenly distributing the liquid, similar to a "distributor." For the flow channel 100, the liquid supply can only be achieved through the liquid outlet 4b and the guide hole 11, preventing it from directly covering the entire channel. This results in uneven distribution of the cleaning liquid and varying cleaning effects at different locations. To address this, at least two brush plates 52 are arranged at intervals, with at least one brush plate 52's rotation path passing through the liquid outlet 4b. This arrangement of brush plates 52 and liquid outlet 4b, when viewed from a single brush plate 52, ensures that each rotation passes below the guide hole 11. Each time it passes the liquid outlet 4b, the cleaning liquid is dispersed, and a significant portion of the cleaning liquid remaining on the brush plate 52 is further agitated and evenly distributed throughout the flow channel 100 as the brush 5 rotates. Furthermore, as mentioned above, the liquid outlet 4b is arranged with its opening facing downwards, which provides a larger impact area for the strip-shaped brush plate 52, resulting in a better dispersing effect.

[0064] In this embodiment, the brush 5 can be driven by negative pressure and move with the airflow. However, such brushing force is insufficient. Therefore, it is preferable to use a power source to drive it. The front side of the housing 1 is also provided with a drive mechanism 3, and the power output end of the drive mechanism 3 is connected to the brush 5. Specifically, there are at least two flow channels 100 arranged at intervals on the front side of the housing 1. Each flow channel 100 is provided with a corresponding brush 5. The drive mechanism 3 includes a driver 32 and a gearbox 31. The output end of the gearbox 31 has at least two drive shafts 14. Each drive shaft 14 extends vertically and can rotate around its own axis. The brush 5 is mounted on the drive shaft 14 and can rotate synchronously with the drive shaft 14. There is a notch 101 on the front side of the housing 1. The drive mechanism 3 is detachably mounted at the notch 101. The housing 1 has a vertically penetrating mounting hole 17 at the position corresponding to the notch 101.

[0065] Furthermore, in this embodiment, the flow channels 100 are arranged in groups, with each group consisting of two flow channels 100 and having an exhaust channel 1e. The two flow channels 100 in the same group are connected to their respective exhaust channels 1e via their respective air outlets 1d. Specifically, there are four flow channels 100 forming two groups. The brushes 5 within the two groups of flow channels 100 rotate in opposite directions, causing the two exhaust channels 1e to converge at the center of the rear side of the housing 1. This design of the flow channels 100 and exhaust channels 1e links the rotation of the brushes 5 to the direction of the airflow. Since the two groups of flow channels 100 rotate in opposite directions, the middle of the two groups of flow channels 100 forms a convergence point for the airflow. Due to the presence of the annular wall, the swirling and colliding airflow within the flow channels 100 generates mutual amplification, thereby greatly increasing the flow velocity of the fluid within each flow channel 100 and producing a good cleaning effect. Of course, in actual production, the degree of connectivity between each flow channel 100 can be adjusted by setting the height of the annular wall according to the final cleaning effect, thereby achieving the ideal cleaning effect. Of course, exhaust duct 1e can also adopt different structural designs; please refer to [reference needed]. Figure 6 , Figure 17 and Figure 18 The above describes Figure 18 In the case where the two exhaust ducts 1e converge at the middle of the rear side of the housing 1, it can also be... Figure 6 The structure shown depicts two central flow channels 100 merging and exhausting through a larger exhaust duct 1e, while the flow channels 100 on either side exhaust through their respective corresponding exhaust ducts 1e; alternatively, it could be as follows: Figure 17 As shown, each flow channel 100 corresponds to an exhaust channel 1e.

[0066] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

[0067] Furthermore, the specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A floor brush module for a cleaning machine, comprising: The housing (1) has an air inlet (1b) for dust collection and an air outlet (1d) for connecting to the cleaning machine fan module; Its features are: The housing (1) has a vertically extending mounting hole (17) on the front side of the brush module in the direction of travel. A gap is left between the mounting hole (17) and the surface to be cleaned, forming a front-to-back extending flow channel (100). Along the fluid flow path, the flow channel (100) is located between the air inlet (1b) and the air outlet (1d), and the flow direction of the fluid within the flow channel (100) intersects with the extending direction of the mounting hole (17). The brush (5) is rotatably disposed at the mounting hole (17) of the housing (1) and the axis of rotation extends vertically, the lower part of the brush extending into the flow channel (100); The bottom wall of the housing (1) has an annular wall (18) around the lower edge of the corresponding mounting hole (17), and the air inlet (1b) and air outlet (1d) are both opened on the annular wall (18); The annular wall (18) is formed by extending downward from the bottom wall of the shell (1); The housing (1) is also provided with a liquid distributor (4), which has a liquid outlet (4b) arranged adjacent to the mounting hole (17) and in fluid communication with the flow channel (100); The brush (5) includes a base (51) and a flexible brush plate (52), the brush plate (52) being mounted on the bottom of the base (51) and located within the flow channel (100); A drive mechanism (3) is also provided on the front side of the housing (1), and the power output end of the drive mechanism (3) is driven to connect with the brush (5). There are at least two flow channels (100) and they are spaced apart on the front side of the housing (1). Each flow channel (100) is provided with a brush (5). The output end of the drive mechanism (3) has at least two drive shafts (14). Each drive shaft (14) extends vertically and can rotate around its own axis. The brush (5) is mounted on the drive shaft (14) and can rotate synchronously with the drive shaft (14). The flow channels (100) are arranged in groups, with each group consisting of two flow channels (100) and having an exhaust channel (1e). The two flow channels (100) in the same group are connected to the corresponding exhaust channel (1e) through their respective air outlets (1d).

2. The floor brush module according to claim 1, characterized in that: The liquid outlet (4b) is arranged with its opening facing downwards.

3. The floor brush module according to claim 2, characterized in that: The housing (1) has a guide hole (11) that extends in the same direction as the mounting hole (17) and communicates with the liquid outlet (4b). The guide hole (11) is arranged in the area enclosed by the annular wall (18).

4. The floor brush module according to claim 3, characterized in that: The liquid dispenser (4) includes a strip-shaped body (41) and a flow guide seat (42) formed at the end of the body. The bottom of the flow guide seat (42) has a liquid outlet end (43) extending downward into the flow guide hole (11). The liquid outlet (4b) is opened on the liquid outlet end (43).

5. The floor brush module according to claim 1, characterized in that: The seat (51) is disc-shaped, the brush plate (52) extends to the outer edge of the seat (51), and the rotation path of the brush plate (52) passes through the liquid outlet (4b).

6. The floor brush module according to claim 5, characterized in that: The brush plate (52) is strip-shaped and there is at least one of them. It is installed at the bottom of the seat (51) and arranged radially relative to the center of the seat (51).

7. The floor brush module according to claim 6, characterized in that: The bottom of the base (51) is provided with a positioning groove (53) at the position corresponding to the brush plate (52), and the brush plate (52) is installed in the positioning groove (53).

8. The floor brush module according to claim 7, characterized in that: The bottom of the seat (51) extends downward to a mounting base (54), and the positioning groove (53) is formed on the mounting base (54). The positioning groove (53) has an insertion port (55) on the side wall adjacent to the outer edge of the seat (51), and the brush plate (52) is inserted into the positioning groove (53) through the insertion port (55).

9. The floor brush module according to claim 8, characterized in that: The diameter of the socket (55) gradually decreases from top to bottom.

10. The floor brush module according to claim 9, characterized in that: The sidewall of the positioning groove (53) extends inward to form a retaining edge (531), and there are sidewalls (521) extending laterally on both sides of the brush plate (52). When the brush plate (52) is inserted into the positioning groove (53), the retaining edge (531) is located above the sidewall (521) so that the brush plate (52) is vertically limited in the positioning groove (53).

11. The floor brush module according to any one of claims 1 to 10, characterized in that: The housing (1) has a notch (101) on the front side, and the drive mechanism (3) is detachably installed at the notch (101). The housing (1) forms the mounting hole (17) vertically through the notch (101) at the position corresponding to the notch (101).

12. The floor brush module according to any one of claims 1 to 10, characterized in that: There are four flow channels (100) forming two groups. The brushes (5) in the two groups of flow channels (100) rotate in opposite directions, so that the two exhaust channels (1e) converge at the middle of the rear side of the housing (1).

13. A cleaning machine having a floor brush module for a cleaning machine as described in any one of claims 1 to 12, characterized in that, It also includes a separation module (02) for separating fluids and a fan module (03) for providing a negative pressure source. The floor brush module (01), the separation module (02) and the fan module (03) are arranged sequentially along the fluid flow path. The inlet end of the separation module (02) is in fluid communication with the air outlet (1d), and the outlet end of the separation module (02) is in fluid communication with the inlet end of the fan module (03).

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