A floor brush for a cleaning machine and a cleaning machine

Abstract

The application relates to a brush head module for a cleaning machine, which comprises a driving mechanism and a brush for brushing a surface to be cleaned, the driving mechanism has a rotating shaft vertically extending and capable of rotating around its axis, the brush is installed on the rotating shaft, and the top of the base has a mounting groove; the brush head module is designed in a form capable of being detachably mounted in the mounting groove of the base, so that the brush in the brush head module is always located in the vertically-through mounting hole of the base and realizes the brushing of the surface to be cleaned through synchronous rotation with the rotating shaft; compared with a traditional driving form, the fluid carrying dust particles excessively contacts the driving transmission part is avoided to the maximum extent, and the whole brush head module can be dismounted for cleaning after being used for a period of time, which is very convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household cleaning tools, in particular to a floor brush for a cleaning machine and the cleaning machine. BACKGROUND

[0002] With the development of household cleaning technology, household cleaning equipment gradually diversifies, and more and more cleaning equipment enters thousands of households. The traditional dust collector has certain use limitations, and the structural design and sealing of its parts can only meet the use scene of dry environment and cannot be used in wet environment; when in wet environment, the sewage carried by the dust suction airflow will inevitably penetrate to the motor under the action of negative pressure, and once the water enters the motor through the gap of the motor housing, the motor will be easily damaged.

[0003] Obviously, the cleaning machine that can only suck dust but cannot suck water cannot meet the use needs of consumers, and therefore some enterprises have developed a scrubber that can be used in both dry and wet environments, especially the dust collection tank part of the scrubber has been improved to a certain extent, so that dry and wet garbage can be well separated, thereby avoiding the flow of water vapor to the negative pressure source.

[0004] Although the cleaning machine similar to the above working mode solves the problem of dry and wet use, but the traditional roller brush is still used in the floor brush part for ground cleaning, even if a part of the cleaning machine changes the material of the roller brush accessory for dry and wet scenes, it cannot well adapt to the washing needs of the wet environment, and the cleaning effect of stubborn stains is general; Patent No. CN201410794982.6 “Floor brush device of dust collector” discloses another specific form of brush head, which drives the rotation of the brush head by gear linkage, and the rotation posture of the roller brush is different from that of the traditional roller brush, thereby realizing heavy cleaning of the ground. However, on the one hand, it is only applied in the dust collector and has not been optimized and improved for wet environment, and the water stains on the ground cannot be well washed, on the other hand, the transmission part and the brush head part are not separated, which can meet the use needs in dry environment, but once in wet environment, the dust particles wrapped by sewage are easy to stay in the gap of each transmission part, resulting in transmission failure. In addition, when dust or particles are accumulated inside, the floor brush device is similar to the traditional floor brush, which can only be processed by disassembling the single brush head, although it can realize the cleaning of the inside to a certain extent, but obviously the efficiency is low, and the use experience of consumers is greatly reduced when directly processing the dust and stains accumulated for a long time.

[0005] In addition, for the existing cleaning machine, the brush is located in the chamber of negative pressure. Since the brush itself has a certain height, the gain of the brush to the airflow needs to be met during cleaning, so it is placed on the flow path of the fluid. In order to not affect the output of the fluid, the position of the exhaust is set at the upper end of the dust collection cylinder, and in order to facilitate dust collection, the position of the air inlet is at the lower end of the dust collection cylinder, resulting in that the internal chamber of the dust collection cylinder needs to have a certain longitudinal depth during design, that is, a three-dimensional cyclone is formed. After the negative pressure fluid wrapped with dust particles is sucked into the dust collection cylinder, it needs to be displaced for a long distance in the vertical direction. In this way, there are various disadvantages, and the more obvious aspects are:

[0006] 1. Since the flow direction of the fluid during cleaning is from front to back, consistent with the moving direction of the cleaning machine, most of the dirt needs to be turned at least twice when entering and exiting the dust collection cylinder. When the fluid and the wrapped solid particles are turned, they impact on the inner wall of the dust collection cylinder, greatly increasing the noise decibel;

[0007] 2. In order to install the brush and other components, irregular shell parts are formed in the dust collection cylinder. Under the maintenance of dry and wet environments, such long-distance fluid guiding makes these positions become places for hiding dirt and are extremely difficult to clean, and the use experience needs to be improved;

[0008] 3. The fluid moving path is long, and the suction force of the negative pressure source is damaged. SUMMARY

[0009] The first technical problem to be solved by the present application is to provide a floor brush for a cleaning machine with a brush head module that is easy to disassemble, in view of the current situation of the prior art.

[0010] The second technical problem to be solved by the present application is to provide a floor brush for a cleaning machine that avoids vertical flow of fluid in the flow channel, in view of the current situation of the prior art.

[0011] The third technical problem to be solved by the present application is to provide a floor brush for a cleaning machine with a brush that increases the airflow velocity, in view of the current situation of the prior art.

[0012] The fourth technical problem to be solved by the present application is to provide a cleaning machine with the above-mentioned floor brush, in view of the current situation of the prior art.

[0013] The technical scheme adopted by the present application to solve the first technical problem is as follows: a floor brush for a cleaning machine, comprising:

[0014] a brush head module, comprising a driving mechanism and a brush for sweeping the surface to be cleaned, the driving mechanism having a rotating shaft extending vertically and being able to rotate around its own axis, and the brush being installed on the rotating shaft;

[0015] The base has a mounting slot on the top, a mounting hole is formed on the bottom wall of the mounting slot to accommodate the brush, the lower edge of the mounting hole is spaced apart from the ground to be cleaned to form a flow channel extending forward and backward, the mounting hole is vertically arranged to communicate the mounting slot and the flow channel, and the brush head module is arranged to move up and down relative to the mounting slot, so as to be detachably mounted in the mounting slot, and in the state that the brush head module is mounted in the mounting slot, the brush is partially located below the mounting hole.

[0016] Since the top of the base has a mounting slot, the driving mechanism and the brush in the brush head module can be disassembled and installed in an integral form relative to the mounting slot. Such integral disassembly has obvious advantages compared to the traditional installation mode: first, the integral disassembly modularizes the entire brush head module, simplifying the disassembly steps, avoiding the trivial and numerous parts caused by single disassembly, effectively reducing the disassembly difficulty of the cleaning brush head module, and reducing the disassembly time; second, the vertical penetration of the mounting hole enables the mounting slot on the top of the base and the flow channel on the bottom to be communicated through the mounting hole. When the brush head module is installed, the brush can extend into the flow channel below the mounting slot from above, while the driving mechanism remains in the mounting slot. That is, the design of the mounting hole achieves the mutual isolation of the driving part and the brush during work, thereby avoiding excessive contact between the fluid carrying dust particles and the driving transmission part, and reducing the probability of dust accumulation; third, the vertical penetration of the mounting hole also ensures that the entire disassembly process can be realized by moving the brush head module up and down. In this way, on the one hand, during the vertical disengagement of the brush from the mounting hole, some debris remaining on the brush can be preliminarily blocked by the lower edge of the mounting hole and left in the flow channel; on the other hand, the vertical disassembly form does not need to turn over the body of the cleaning machine, and only needs to operate the brush head module to remove the driving mechanism and the brush thereon. The cleaning can be completed by directly washing the entire module in the water flow, which is very convenient, saves effort and labor, and is more suitable for household use scenarios.

[0017] Preferably, the floor brush further comprises a housing, and the base is formed on the front side of the housing and has a gap on the top to form the mounting slot.

[0018] To further solve the second technical problem, the technical scheme adopted by the present application is that: the bottom of the base has an air inlet for dust suction and an air outlet communicated with the cleaning machine fan module, along the flow path of the fluid, the flow channel is located between the air inlet and the air outlet, and the flow direction of the fluid in the flow channel intersects the extension direction of the mounting hole, and the brush member extends into the flow channel. Due to the flow channel formed between the front side mounting hole of the shell and the ground to be cleaned, the suction force formed by the cleaning machine fan module as a negative pressure source can be directly transmitted to the flow channel, so that the fluid entrains dust from the air inlet into the flow channel and is discharged from the air outlet. Due to the fact that the flow channel extends front and back and the flow direction of the fluid in the flow channel intersects the extension direction of the mounting hole, the flow of the fluid in the flow channel is completely restricted in the planar area formed by the flow channel, avoiding the movement of the fluid in the vertical direction. Compared with the traditional ground brush with a chamber, not only the suction loss is avoided, but also the particles are effectively prevented from gathering in the large-volume dust suction chamber. In addition, the arrangement of the brush member extending into the flow channel can greatly improve the flow rate of the airflow in the flow channel during the process of the fluid entraining particles being sucked, on the basis of considering the washing effect, thereby forming a planar cyclone and greatly improving the decontamination ability of the fluid.

[0019] Preferably, the flow channels are arranged in groups, two adjacent flow channels form a group, and the rotating directions of the brush members in two adjacent groups of flow channels are opposite. In this way, the arrangement of the brush members, on the basis of the brush members extending into the flow channels, effectively disturbs the airflow in the flow channels through the rotation of the groups of brush members, so that the airflow generates a cyclone synchronously with the rotation of the brush members. Under the action of multiple brush members, the airflow converges and finally interacts, greatly increasing the flow rate of the airflow, gaining the suction force of the negative pressure source, and achieving better cleaning effect.

[0020] To further ensure that the entire air path is always limited within the flow channel, preferably, the bottom wall of the shell has a ring wall at the outer periphery corresponding to the lower edge of the mounting hole, and the air inlet and the air outlet are both arranged on the ring wall.

[0021] The ring wall can be a separately arranged component. To ensure the flatness of the shell and avoid dust accumulation, preferably, the ring wall is formed by the downward extension of the bottom wall of the shell.

[0022] To cover sufficient cleaning area, preferably, there are at least two flow channels and they are arranged at intervals on the front side of the shell, and each flow channel is correspondingly provided with a brush member.

[0023] Preferably, the brush head module further comprises a box body, the box body is hollow inside to form an assembly cavity, and the rotating shaft penetrates through the bottom wall of the box body and extends out of the assembly cavity at the lower end.

[0024] In order to facilitate the transmission of power, preferably, the assembly cavity further has a transmission wheel, the transmission wheel is sleeved on the rotating shaft, and the output end of the driving mechanism has a driving shaft connected with the transmission wheel.

[0025] In order to ensure the transmission of power, preferably, the output end of the driving mechanism is further provided with a driving wheel, and the rotating shaft is driven by the driving wheel and the driving shaft to be linked with the transmission wheel.

[0026] In order to further solve the third technical problem, the technical scheme adopted by the present application is that: the transmission wheel is at least two and arranged in pairs, each two transmission wheels form a transmission assembly, at least one transmission assembly is arranged in the assembly cavity, and the transmission assembly further comprises a first transmission belt which is sequentially sleeved on the two transmission wheels, and the two transmission wheels in the same transmission assembly are linked through the first transmission belt.

[0027] Further, the transmission assembly has two groups and is arranged side by side, so that each transmission wheel is arranged in a straight line, and a driving gap is left between the two groups of transmission assemblies, a gear set is arranged in the driving gap, the output end of the driving mechanism drives the gear set to link the two groups of transmission assemblies, and the rotating directions of the two groups of transmission assemblies are opposite.

[0028] Preferably, each transmission assembly is coaxially provided with a driven wheel on the transmission wheel adjacent to the driving gap, the gear set comprises a first sub-gear and a second sub-gear which are meshed with each other, and the first sub-gear and the second sub-gear are arranged adjacent to the corresponding driven wheel and meshed with each other.

[0029] Specifically, the driving wheel is arranged in the driving gap and coaxially arranged with the driving shaft, and the driving wheel is meshed with one of the first sub-gear and the second sub-gear, thereby driving the two groups of transmission assemblies to be linked.

[0030] In order to ensure that the power of the driving mechanism is transmitted to the brush, preferably, the output shaft of the driving mechanism is linked with the driving shaft through a second transmission belt.

[0031] In order to avoid the rotating shaft from slipping off the brush, preferably, a limiting portion for limiting the relative rotation between the rotating shaft and the brush of the floor brush is arranged on the outer wall of the bottom of the rotating shaft.

[0032] Preferably, the brush comprises a seat body and a flexible brush plate, the brush plate is installed at the bottom of the seat body and located in the flow channel.

[0033] The brush plate is strip-shaped and at least one is installed at the bottom of the seat body and arranged radially relative to the center of the seat body. In this way, the arrangement of the brush plate can more efficiently integrate the airflow at different positions, and because the brush plate itself is strip-shaped, it has a better driving effect on the mixture of fluid, i.e. airflow and liquid flow.

[0034] Specifically, the bottom of the seat body is provided with a positioning groove at the position corresponding to the brush plate, and the brush plate is detachably installed in the positioning groove.

[0035] The brush plate and the seat body can be different installation forms, preferably, the bottom of the seat body extends downward to form a mounting seat, the positioning groove is formed on the mounting seat, and the positioning groove is provided with a socket on the side wall adjacent to the outer edge of the seat body. The brush plate is inserted into the positioning groove from the socket.

[0036] In order to avoid the vertical falling of the brush plate, preferably, the diameter of the socket is gradually reduced from top to bottom.

[0037] Specifically, the side wall of the positioning groove extends inward to form a stop edge, and the brush plate has a laterally extending stop edge on both sides corresponding to the brush plate. In the state that the brush plate is inserted into the positioning groove, the stop edge is located above the stop edge, so that the brush plate is vertically limited in the positioning groove.

[0038] Preferably, the base is further provided with a cover, and in the state that the brush head module is installed in the mounting groove, the cover is buckled on the outer edge of the mounting groove.

[0039] The cover can adopt different opening forms, preferably, the front side of the cover is rotatably connected to the front edge of the mounting groove, so that the back side swings up and down relative to the mounting groove, and in the state that the back side swings up to the limit, a channel is formed for the brush head module to separate.

[0040] In order to ensure that the cover will not fall off when buckling, the cover is provided with a limiting assembly, a limiting groove is formed on the rear edge of the mounting groove, and in the state that the cover is buckled on the mounting groove, the limiting assembly is hooked in the limiting groove through the limiting piece of the output end, so as to limit the brush head module from separating from the mounting groove.

[0041] In order to ensure that the cover is limited balanced on both sides, preferably, the limiting assembly has two groups and is distributed on both sides of the wall plate on the back side of the cover, and a limiting groove is formed on both sides of the rear edge of the mounting groove.

[0042] In order to facilitate the disassembly of the cover, the limiting assembly further comprises a resilient member, the limiting piece is constrained on the wall plate on the back side of the cover, and the resilient member acts on the limiting piece, so that the limiting piece always has the tendency to hook the limiting groove.

[0043] To further solve the fourth technical problem, the technical solution adopted by the present application is: a cleaning machine with the above-mentioned floor brush, further comprising a separation module for separating fluid and a fan module for providing a negative pressure source, the floor brush, the separation module and the fan module are arranged in sequence along the flow path of the fluid, 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.

[0044] Compared with the prior art, the advantages of the present application are that: in the floor brush for the cleaning machine, the driving mechanism and the brush in the brush head module can be disassembled and assembled in an integral form relative to the mounting groove on the top of the base, which has obvious advantages compared with the traditional mounting mode:

[0045] 1. The overall disassembly modularizes the entire brush head module, simplifies the disassembly steps, avoids the trivial and numerous parts caused by single disassembly, effectively reduces the disassembly difficulty of the cleaning brush head module, and reduces the disassembly time;

[0046] 2. The vertical penetration of the mounting hole enables the mounting groove on the top of the base and the flow channel on the bottom to be connected through the mounting hole. When the brush head module is installed, the brush can extend into the flow channel below the mounting groove from above, and the driving mechanism remains in the mounting groove. That is, the mutual isolation of the driving part and the brush during work is completed through the design of the mounting hole, thereby avoiding excessive contact between the fluid carrying dust particles and the driving transmission part and reducing the probability of dust accumulation;

[0047] 3. The vertical penetration arrangement of the mounting hole also ensures that the entire disassembly process can be realized by moving the brush head module up and down. In this way, on the one hand, some debris remaining on the brush can be preliminarily blocked by the lower edge of the mounting hole and left in the flow channel during the vertical separation of the brush from the mounting hole. On the other hand, the vertical disassembly form does not require turning over the body of the cleaning machine, and only the brush head module needs to be operated to remove the driving mechanism and the brush thereon. Cleaning can be completed through direct methods such as washing the entire module in water, which is very convenient, saves effort and energy, and is more suitable for household use scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 The overall structure of the floor brush in the embodiment of the present application is shown in the figure;

[0049] Figure 2 The exploded structure of the floor brush in the embodiment of the present application is shown in the figure;

[0050] Figure 3 The Figure 1 The structure diagram after omitting the brush head module is shown in the figure;

[0051] Figure 4The overall structure schematic diagram of the brush head module in the embodiment of the present application;

[0052] Figure 5 The overall structure schematic diagram of the brush module in the embodiment of the present application; Figure 4 The overall schematic diagram after omitting the brush part;

[0053] Figure 6 The overall schematic diagram of the brush head module after omitting the external structure;

[0054] Figure 7 The overall structure schematic diagram of the brush module in the embodiment of the present application; Figure 6 The schematic diagram after omitting the driven wheel;

[0055] Figure 8 The overall structure schematic diagram of the brush module in the embodiment of the present application; Figure 3 The schematic diagram from another angle;

[0056] Figure 9 The schematic diagram from another angle; Figure 8 The sectional view schematic diagram (omitting the internal components) from another angle;

[0057] Figure 10 The local enlarged sectional view of the mounting hole in the embodiment of the present application;

[0058] Figure 11 The overall schematic diagram of the brush part;

[0059] Figure 12 The overall schematic diagram of the brush part; Figure 11 The overall schematic diagram from another angle;

[0060] Figure 13 The schematic diagram of the cover in the upward moving state in the embodiment of the present application;

[0061] Figure 14 The local enlarged schematic diagram of the cover in the embodiment of the present application;

[0062] Figure 15 The overall schematic diagram of the cleaning machine in the embodiment of the present application;

[0063] Figure 16 The air path schematic diagram of the present application. DETAILED DESCRIPTION

[0064] The present application is further described in detail below in combination with the embodiment of the drawings.

[0065] As Figures 1 to 16As shown, it is a preferred embodiment of the present application, in this embodiment, the floor brush for the cleaning machine comprises a housing 1, a brush head module 3 and a base 102, wherein the brush head module 3 comprises a driving mechanism 32 and a brush 5 for brushing the surface to be cleaned, the driving mechanism 32 has a rotating shaft 14 extending vertically and capable of rotating around its axis, the brush 5 is installed on the rotating shaft 14, and in order to ensure the assembly of the brush head module 3, the top of the base 102 has a mounting groove 101, the bottom wall of the mounting groove 101 is provided with a mounting hole 17 for accommodating the brush 5, the lower edge of the mounting hole 17 is spaced apart from the ground to be cleaned to form a front and rear extending flow channel 100, the mounting hole 17 is arranged vertically to communicate the mounting groove 101 and the flow channel 100, and the brush head module 3 is arranged to move up and down relative to the mounting groove 101, so as to be detachably installed in the mounting groove 101, and in the state that the brush head module 3 is installed in the mounting groove 101, the brush 5 is partially located below the mounting hole 17. And the base 102 is formed on the front side of the housing 1 and the top is provided with a notch to form the mounting groove 101.

[0066] Of course, the up and down movement of the brush head module 3 mentioned here includes the vertical and the disassembly direction at an angle to the vertical, that is, when disassembling, it can be slightly inclined to the front, back, left and right directions of the vertical direction according to the actual use requirement, as long as the general direction meets the up and down disassembly.

[0067] The bottom of the base 102 in this embodiment has an air inlet 1b for dust suction and an air outlet 1d communicated with the fan module of the cleaning machine, along the flow path of the fluid, the flow channel 100 is located between the air inlet 1b and the air outlet 1d, and the flow direction of the fluid in the flow channel 100 intersects with the extension direction of the mounting hole 17, and the brush 5 extends into the flow channel 100. It is due to the flow channel formed between the mounting hole on the front side of the housing and the ground to be cleaned that the suction force formed by the fan module of the cleaning machine as a negative pressure source can be directly transmitted to the flow channel, so that the fluid and the dust are sucked into the flow channel from the air inlet and discharged from the air outlet. Since the flow channel extends front and rear 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 restricted in the planar area formed by the flow channel, avoiding the movement of the fluid in the vertical direction. Compared with the traditional floor brush with a chamber, not only the suction loss is avoided, but also the particles can be effectively prevented from gathering in the large volume suction chamber. In addition, the arrangement of the brush extending into the flow channel can greatly improve the flow rate of the airflow in the flow channel during the process of the fluid and the particles being sucked, on the basis of considering the washing effect, and further form a planar cyclone, so that the decontamination ability of the fluid is greatly improved.

[0068] Of course, the flow channel 100 can be formed in different ways. In this embodiment, 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 the air outlet 1d are both opened on the annular wall 18. Specifically, the annular wall 18 is formed by extending downward from the bottom wall of the housing 1. Moreover, there are at least two flow channels 100 arranged at intervals on the front side of the housing 1, and each flow channel 100 is provided with a corresponding brush 5. It is worth mentioning that the floor brush mentioned here is applicable to a cleaning machine, which also includes a separation module 02 for separating fluids and a fan module 03 for providing a negative pressure source. The floor brush 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.

[0069] In this embodiment, the interior of the aforementioned housing 31 is hollow, forming an assembly cavity 30. The rotating shaft 14 passes through the bottom wall of the housing 31 and extends its lower end outside the assembly cavity 30. To achieve power transmission, a transmission wheel 33 is also provided inside the assembly cavity 30. The transmission wheel 33 is sleeved on the rotating shaft 14, and the output end of the drive mechanism 32 has a drive shaft 321 connected to the transmission wheel 33. There are at least two transmission wheels 33 arranged in pairs. Every two transmission wheels 33 form a set of transmission components 300. At least one set of transmission components 300 is provided inside the assembly cavity 30, and the transmission component 300 also includes a first transmission belt 34 sequentially wound around the two transmission wheels 33. The two transmission wheels 33 in the same set of transmission components 300 are linked together through the first transmission belt 34. The aforementioned flow channels 100 are arranged in groups, with two adjacent flow channels 100 forming a group. The brushes 5 in the two adjacent sets of flow channels 100 rotate in opposite directions. The transmission components 300 consist of two sets arranged side-by-side, resulting in a linear arrangement of the transmission wheels 33. This "linear" arrangement refers to the general direction of the transmission wheels 33; adjacent wheels 33 can be slightly offset, for example, arranged in a wavy pattern, as long as the overall direction is linear. A drive gap 301 is formed between the two sets of transmission components 300. A gear set 302 is installed within the drive gap 301. The output end of the drive mechanism 32 drives the two sets of transmission components 300 in tandem via the drive gear set 302, and the two sets of transmission components 300 rotate in opposite directions. This arrangement of the transmission components, with the brushes extending into the flow channel, effectively disturbs the airflow within the channel through the rotation of the brushes in groups. This causes the airflow to generate a vortex synchronously with the rotation of the brushes. With the support of multiple brushes, the airflow converges and ultimately influences each other, greatly increasing the airflow velocity and amplifying the suction force generated by the negative pressure source, resulting in a better cleaning effect.

[0070] Further, in the embodiment, each transmission assembly 300 is coaxially provided with a driven wheel 35 on the transmission wheel 33 adjacent to the driving gap 301, the gear set 302 comprises a first sub-transmission gear 303 and a second sub-transmission gear 304 which are mutually engaged, and the first sub-transmission gear 303 and the second sub-transmission gear 304 are respectively arranged adjacent to the corresponding driven wheel 35 and mutually engaged. The driving gap 301 is further provided with a driving wheel 36 coaxially arranged with the driving shaft 321 of the driving mechanism 32, the driving wheel 36 is engaged with one of the first sub-transmission gear 303 and the second sub-transmission gear 304, thereby driving the two groups of transmission assemblies 300 to be linked. The output shaft 323 of the driving mechanism 32 is linked with the driving shaft 321 through the second transmission belt 324.

[0071] In order to avoid the brush 6 from slipping off the rotating shaft 14, a limiting portion 140 is arranged on the outer wall of the bottom of the rotating shaft 14 to limit the relative rotation between the rotating shaft 14 and the brush 5.

[0072] The brush 5 in the embodiment is different from the conventional brush 6 with bristles, and the brush 5 comprises a seat body 51 and flexible brush plates 52. The seat body 51 is disc-shaped, and the brush plates 52 are strip-shaped and at least one of them is arranged radially on the bottom of the seat body 51 relative to the center of the seat body 51. In this way, the brush plates are arranged in a form which can more efficiently integrate the airflow at different positions, and since the brush plates are strip-shaped, they have a better driving effect on the mixture of fluid, i.e. airflow and liquid flow. Specifically, a positioning groove 53 is arranged on the bottom of the seat body 51 at a position corresponding to the brush plate 52, and the brush plate 52 is detachably installed in the positioning groove 53. The bottom of the seat body 51 downwardly extends an installation seat 54, and the positioning groove 53 is formed on the installation seat 54. The positioning groove 53 is provided with a socket 55 on the side wall adjacent to the outer edge of the seat body 51, the brush plate 52 is inserted into the positioning groove 53 from the socket 55, and the diameter of the socket 55 gradually decreases from top to bottom. In order to further ensure the vertical limiting of the brush plate 52 and avoid the brush plate 52 from falling off, the side wall of the positioning groove 53 inwardly extends to form a stop edge 531, and the brush plate 52 has a laterally extending stop edge 521 on both sides corresponding to the brush plate 52. In the state that the brush plate 52 is inserted into the positioning groove 53, the stop edge 531 is located above the stop edge 521, so that the brush plate 52 is vertically limited in the positioning groove 53. Of course, in order to avoid the risk of the brush plate 52 falling off, the above-mentioned brush plate 52 can be integrally formed on the seat body 51 during injection molding. In actual production, if cost factors are not considered, the integrated design can greatly reduce the rotation defects of the brush 5 itself, such as part shaking, noise generation and dust accumulation in the gap during assembly. Therefore, the integrated design is preferred.

[0073] In the embodiment, the base 102 is further provided with a cover 103, which is buckled on the outer edge of the installation groove 101 when the brush head module 3 is installed in the installation groove. The front side of the cover 103 is rotatably connected to the front edge of the installation groove 101, so that the rear side thereof swings up and down relative to the installation groove 101, and forms a passage for the brush head module 3 to be separated when the cover 103 swings to the limit. The cover 103 is provided with a limiting assembly 107, and a limiting groove 104 is formed on the rear edge of the installation groove 101. When the cover 103 is buckled on the installation groove 101, the limiting assembly 107 is hooked in the limiting groove 104 through the limiting piece 105 of the output end, so as to limit the brush head module 3 from being separated from the installation groove 101. The limiting assembly 107 in the embodiment has two groups and is distributed on both sides of the wall plate on the rear side of the cover 103. Correspondingly, the limiting groove 104 is formed on both sides of the rear edge of the installation groove 101. In addition, the limiting assembly 107 further comprises a resilient member 106, the limiting piece 105 is constrained on the wall plate on the rear side of the cover 103, and the resilient member 106 acts on the limiting piece 105, so that the limiting piece 105 always has a tendency to hook the limiting groove 104.

[0074] The "fluid communication" in the present application refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as a first part and a second part), i.e. fluid (gas, liquid or mixture of the two) can flow or / and be transported from the first part to the second part along a flow path, which can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, etc., or a chamber allowing fluid to flow, or a combination thereof.

[0075] In addition, in the specification and claims of the present application, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, for example, "upper" and "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A floor brush for a cleaning machine, characterized in that The utility model relates to a floor cleaning machine, comprising: a brush head module (3) comprising a driving mechanism (32) and a brush (5) for brushing a surface to be cleaned, the driving mechanism (32) having a rotating shaft (14) extending vertically and rotatable about its axis, the brush (5) being mounted on the rotating shaft (14); and a base (102) having a mounting slot (101) at the top, a mounting hole (17) for accommodating the brush (5) being formed in the bottom wall of the mounting slot (101), the lower edge of the mounting hole (17) being spaced apart from the ground to be cleaned to form a flow channel (100) extending frontward and rearward, the mounting hole (17) being arranged vertically to communicate the mounting slot (101) and the flow channel (100), and the brush head module (3) being arranged to move up and down relative to the mounting slot (101) to be detachably mounted in the mounting slot (101), and in the state that the brush head module (3) is mounted in the mounting slot (101), the brush (5) is partially located below the mounting hole (17); the base (102) is formed on the front side of a housing (1) and has a notch at the top to form the mounting slot (101); the bottom of the base (102) has an air inlet (1b) and an air outlet (1d) communicating with a fan module of the cleaning machine, along the flow path of the fluid, the flow channel (100) is located between the air inlet (1b) and the air outlet (1d), and the flow direction of the fluid in the flow channel (100) intersects the extension direction of the mounting hole (17), and the brush (5) extends into the flow channel (100); the brush head module (3) further comprises a box body (31), the box body (31) is hollow inside to form an assembly cavity (30), and the rotating shaft (14) penetrates the bottom wall of the box body (31) and extends out of the assembly cavity (30).

2. The floor brush of claim 1 wherein: The bottom wall of the housing (1) has a ring wall (18) at the periphery corresponding to the lower edge of the mounting hole (17), and the air inlet (1b) and the air outlet (1d) are both formed in the ring wall (18).

3. The floor brush of claim 2 wherein: The ring wall (18) is formed by the bottom wall of the housing (1) extending downward.

4. The floor brush of any one of claims 1-3, wherein: There are at least two flow channels (100) and they are arranged spaced apart on the front side of the housing (1), and each flow channel (100) is provided with a corresponding brush (5).

5. The floor brush of claim 4 wherein: The flow channels (100) are arranged in groups, two adjacent flow channels (100) form a group, and the rotating directions of the brushes (5) in two adjacent groups of flow channels (100) are opposite.

6. The floor brush of claim 1 wherein: The assembly cavity (30) further has a transmission wheel (33) sleeved on the rotating shaft (14), and the output end of the driving mechanism (32) has a driving shaft (321) connected with the transmission wheel (33).

7. The floor brush of claim 6 wherein: The output end of the driving mechanism (32) is further provided with a driving wheel (36), and the rotating shaft (14) is connected with the transmission wheel (33) through the driving of the driving wheel (36) and the driving shaft (321).

8. The floor brush of claim 7 wherein: The transmission wheels (33) are arranged in pairs and at least two in number, and each two transmission wheels (33) form a transmission assembly (300), and at least one set of transmission assemblies (300) is arranged in the assembly cavity (30), and the transmission assembly (300) further comprises a first transmission belt (34) arranged around the two transmission wheels (33) in sequence, and the two transmission wheels (33) in the same set of transmission assemblies (300) are linked through the first transmission belt (34).

9. The floor brush of claim 8 wherein: The transmission assemblies (300) are arranged in two sets, and each set of flow channels (100) corresponds to a set of transmission assemblies (300), and the transmission assemblies (300) are arranged side by side, so that each transmission wheel (33) is arranged in a linear form, and a driving gap (301) is formed between the two sets of transmission assemblies (300), and a gear set (302) is arranged in the driving gap (301), and the output end of the driving mechanism (32) drives the two sets of transmission assemblies (300) through the driving gear set (302), and the rotation directions of the two sets of transmission assemblies (300) are opposite.

10. The floor brush of claim 9, wherein: Each transmission assembly (300) is coaxially provided with a driven wheel (35) on the transmission wheel (33) adjacent to the driving gap (301), and the gear set (302) comprises a first sub-gear (303) and a second sub-gear (304) which are meshed with each other, and the first sub-gear (303) and the second sub-gear (304) are arranged adjacent to and meshed with the corresponding driven wheel (35).

11. The floor brush of claim 10 wherein: The driving wheel (36) is arranged coaxially with the driving shaft (321) in the driving gap (301), and the driving wheel (36) is meshed with one of the first sub-gear (303) and the second sub-gear (304), thereby driving the two sets of transmission assemblies (300) to be linked.

12. The floor brush of claim 11, wherein: The output shaft (323) of the driving mechanism (32) is linked with the driving shaft (321) through a second transmission belt (324).

13. The floor brush of claim 12, wherein: A limiting portion (140) is arranged on the outer wall of the bottom of the rotating shaft (14) to limit the relative rotation between the rotating shaft (14) and the brush element (5).

14. The floor brush of claim 13, wherein: The brush element (5) comprises a seat body (51) and a flexible brush plate (52), and the brush plate (52) is mounted on the bottom of the seat body (51) and located in the flow channel (100).

15. The floor brush of claim 14, wherein: The brush plate (52) is in the form of a strip and at least one, and is mounted on the bottom of the seat body (51) and arranged radially relative to the center of the seat body (51).

16. The floor brush of claim 15, wherein: The bottom of the seat body (51) is provided with a positioning groove (53) at a position corresponding to the brush plate (52), and the brush plate (52) is detachably mounted in the positioning groove (53).

17. The floor brush of claim 16, wherein: The bottom of the seat body (51) extends downwardly to form a mounting seat (54), and the positioning groove (53) is formed on the mounting seat (54), and the positioning groove (53) is formed with a socket (55) on the side wall adjacent to the outer edge of the seat body (51), and the brush plate (52) is inserted into the positioning groove (53) from the socket (55).

18. The floor brush of claim 17, wherein: The caliber of the socket (55) gradually shrinks from top to bottom.

19. The floor brush of claim 18, wherein: The side wall of the positioning groove (53) extends inwardly to form a stop edge (531), and the brush plate (52) has a laterally extending stop edge (521) on each side. When the brush plate (52) is inserted into the positioning groove (53), the stop edge (531) is located above the stop edge (521) to vertically limit the brush plate (52) in the positioning groove (53).

20. The floor brush of claim 1 wherein: The base (102) is further provided with a cover (103), which is buckled on the outer edge of the mounting groove (101) when the brush head module (3) is installed in the mounting groove.

21. The floor brush of claim 20, wherein: The front side of the cover (103) is rotatably connected to the front edge of the mounting groove (101), so that the back side swings up and down relative to the mounting groove (101). When it swings up to the limit, it forms a passage for the brush head module (3) to disengage.

22. The floor brush of claim 21, wherein: The cover (103) is provided with a limiting assembly (107), and a limiting groove (104) is formed on the rear edge of the mounting groove (101). When the cover (103) is buckled on the mounting groove (101), the limiting assembly (107) is hooked in the limiting groove (104) through the limiting piece (105) of the output end to limit the brush head module (3) from disengaging from the mounting groove (101).

23. The floor brush of claim 22, wherein: The limiting assembly (107) has two groups and is distributed on both sides of the back wall of the cover (103). Limiting grooves (104) are formed on both sides of the rear edge of the mounting groove (101).

24. The floor brush of claim 23, wherein: The limiting assembly (107) further includes a resilient member (106), the limiting piece (105) is constrained on the back wall of the cover (103), and the resilient member (106) acts on the limiting piece (105) to make the limiting piece (105) always have the tendency to hook the limiting groove (104).

25. A cleaning machine having a floor brush for a cleaning machine as claimed in any one of claims 1 to 24, characterised in that, It also includes a separation module (02) for separating fluid and a fan module (03) for providing a negative pressure source. The floor brush (01), the separation module (02) and the fan module (03) are arranged in sequence along the flow path of the fluid. 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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