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

Abstract

The application relates to a floor brush module for a cleaning machine and the cleaning machine, wherein a dust suction port is arranged on the bottom of a shell, and an inlet is arranged on the front side of the shell, a flow guide channel is formed between the inlet and the dust suction port, the second end of a brush part can swing relative to the shell because the first end of the brush part is rotatably connected to the bottom of the shell, the flow guide channel can be opened when the brush part swings to a first use state, and large particles can be smoothly collected by the flow guide channel, in addition, the output end of a driving mechanism can act on a surface to be cleaned and move the shell upwards, so that the brush part can be reset and swung, compared with the existing disc brush structure, the brush part can not only sweep the surface to be cleaned, but also avoid the obstruction caused by the collection of large particles, and is very practical.

Description

TECHNICAL FIELD

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

[0002] The cleaning machine is a common household portable cleaning device, which first appeared in the form of a vacuum cleaner and could only be used in a dry environment. In order to meet the use requirements in more environments, especially in wet environments, products such as scrubbers have been developed. Most of the existing scrubbers adopt a front brush structure, which can cover the area covered by the brush rotation to clean by setting a brush that can rotate relative to the shell on the front side of the shell. It is very convenient. However, the scrubber with the brush structure is easy to cause hair entanglement after cleaning, and the brush placed in front of the suction port is also not conducive to the collection of large particles.

[0003] In order to avoid hair entanglement and other problems, the applicant's prior application discloses a cleaning machine with a brushless structure, the patent application number of which is CN202122959279.4 (the authorized announcement number is CN216776859U), which sets a disc brush in the negative pressure cavity in front of the suction port. The form can greatly avoid hair entanglement, and the gap left between the disc brushes can allow large particles to enter the negative pressure interval, facilitating the collection of different forms of dirt.

[0004] Although the above-mentioned cleaning machine solves the defect of hair entanglement to some extent and improves the collection amount of large particles, since the disc brush needs to cover enough sweeping area when sweeping, the collection of large particles is still subject to the size of the gap between the disc brushes, and there is still a risk of large particle jamming during use.

[0005] Therefore, it is necessary to further improve the existing cleaning machine floor brush module. SUMMARY

[0006] The first technical problem to be solved by the present application is to provide a floor brush module for a cleaning machine which utilizes the swing opening and closing of the brush to open and close the flow guide channel to facilitate the collection of debris in view of the current status of the prior art.

[0007] The second technical problem to be solved by the present application is to provide a cleaning machine with the above-mentioned floor brush module in view of the current status of the prior art.

[0008] The technical solution adopted by the present application to solve the above-mentioned first technical problem is: a floor brush module for a cleaning machine, comprising:

[0009] A housing with a dust suction port in the bottom, and an inlet for collecting fluid and solid particles in the front side of the housing in the direction of travel of the floor brush module, and a flow channel formed between the inlet and the dust suction port;

[0010] At least two brush members are arranged in the bottom of the housing and in the flow path of the fluid in the flow channel, the first end of each brush member is rotatably connected to the front side of the bottom of the housing, so that the second end of the brush member can swing relative to the housing, and the brush member can be in contact with the surface to be cleaned, and under the friction of the surface to be cleaned, the brush member can swing to a first use state in which large particles can enter the flow channel, and in the first use state, the extension direction of each brush member is consistent with the direction of travel of the floor brush module; or the brush member can be out of contact with the surface to be cleaned when the housing is in an upward moving state, so as to reset to a second use state in which the flow channel is closed, and in the second use state, the extension direction of each brush member intersects with the direction of travel of the floor brush module; and

[0011] A driving mechanism is arranged on the housing and the power output end of the driving mechanism can act on the surface to be cleaned, so that the housing can move upward relative to the surface to be cleaned when the power output end of the driving mechanism abuts against the surface to be cleaned.

[0012] The brush member can be arranged at different positions of the housing, in order to perform a sweeping action at the first time when the floor brush module is traveling, preferably, the housing is provided with a mounting seat on the front side in the direction of travel of the floor brush module, and the brush member is connected to the mounting seat.

[0013] In order to ensure smooth swinging of the brush member, preferably, the brush member is in a strip shape, the upper edge of the first end of the brush member has an upwardly extending rotating shaft, and a mounting hole is formed in the mounting seat corresponding to the rotating shaft to constrain the rotating shaft in the mounting hole.

[0014] In order to avoid the brush member from falling off, specifically, the inner edge of the mounting hole has an upwardly extending connecting sleeve, the outer periphery of the upper end of the rotating shaft has a radially outwardly extending stopper, and the stopper abuts against the upper end of the connecting sleeve to constrain the rotating shaft in the connecting sleeve.

[0015] Preferably, the outer wall of the lower end of the rotating shaft has an extending piece extending radially outwardly, and the projection of the extending piece on the plane of the mounting hole covers the mounting hole. The design of the extending piece can avoid foreign matter from entering the mounting hole, and ensure smooth swinging of the brush member. In addition, the extending piece can abut against the periphery of the mounting hole, which greatly offsets the transverse force acting on the rotating shaft of the entire brush member in the direction of travel of the floor brush module, reduces the strength requirement of the part, and avoids the rotating shaft from shaking.

[0016] Specifically, the thickness of the extension piece gradually decreases from inside to outside. The design of the extension piece further enhances the strength of the rotating shaft. The gradient change in thickness enables the extension piece to bear most of the external forces received by the brush part at the position near the inside of the rotating shaft. Meanwhile, the thin part of the outer edge of the extension piece does not hinder the flow of fluid and can also guide the collection of large particles.

[0017] In order to realize the upward movement of the shell, preferably, the driving mechanism is arranged at the bottom of the shell and near the rear side, and the driving mechanism has a cam which can intermittently act on the surface to be cleaned to move the shell upward.

[0018] In order to ensure that the cam can still rotate when it is not in contact with the surface to be cleaned, and ensure that it can be in contact with the surface to be cleaned in the next rotation period, the driving mechanism further comprises a cooperating wheel which is arranged side by side and coaxial with the cam, and the cooperating wheel and the convex part of the cam are alternately in contact with the surface to be cleaned.

[0019] There are various structures for realizing the interlocking and relative rotation of the cooperating wheel and the cam. Preferably, the cooperating wheel has a first guide wall on the side adjacent to the cam, and the cam has a second guide wall on the corresponding side which matches the first guide wall. The end of the first guide wall has a first stop part, and the second guide wall has a second stop part. The cooperating wheel and the cam can make the first guide wall and the second guide wall slide relative to each other in the state of relative rotation, so that the first stop part and the second stop part are buckled against each other, thereby making the cooperating wheel and the cam interlock and move together.

[0020] Specifically, along the extension direction of the rotation axis of the cooperating wheel or the cam, the thickness of one of the first guide wall and the second guide wall gradually increases, and the thickness of the other gradually decreases.

[0021] In order to ensure that the two guide walls can always be in contact, preferably, the driving mechanism further comprises a first elastic member which acts on the cooperating wheel or the cam to make the first guide wall and the second guide wall always have a tendency to fit.

[0022] Specifically, the driving mechanism further comprises an inner shell, and the cooperating wheel and the cam are rotatably constrained in the inner shell. The bottom of the shell is correspondingly provided with a slot for embedding the inner shell.

[0023] In order to realize the rotation of the cooperating wheel and the cam, preferably, a rotating shaft is provided on the inner shell, and the cooperating wheel and the cam are coaxial with the rotating shaft. The first elastic member is a spring provided in the inner shell, and the two ends of the spring are respectively in abutment with the inner wall of the inner shell and the outer wall of the cam.

[0024] In order to ensure that the brush module has sufficient sweeping area, preferably, the mounting base is provided with at least two brush pieces in the length direction, and the mounting base is provided with mounting holes corresponding to the positions of the first ends of the brush pieces.

[0025] Preferably, the brush module further comprises a second elastic member, which can act on the brush pieces when the housing is in the upward moving state, so that the brush pieces always have a tendency to rotate to close the flow guide channel and be in the second use state.

[0026] Specifically, the second elastic member is a torsion spring sleeved on the rotating shaft.

[0027] In order to avoid hair and large particles from being stuck at the brush pieces, specifically, the spacing between the mounting holes is not greater than the length of the brush pieces, so that the two adjacent brush pieces are overlapped. In this way, the brush pieces are arranged in such a manner that the second elastic member can not only drive the brush pieces to reset, but also clean each other. Since the brush pieces are not subjected to the friction of the surface to be cleaned when resetting, the brush pieces can swing in the opposite direction under the driving of the elastic restoring force of the second elastic member. Since the elastic restoring force is not exhausted when the brush pieces swing to reset, and the brush pieces have inertia when resetting, the second end of the previous brush piece can hit the first end of the next brush piece with great force. At this time, the hair attached to the two brush pieces or the sundries and particles stuck in the flow guide channel can be loosened under the intermittent hitting and finally be sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush piece and the flow guide channel.

[0028] In order to guide the negative pressure airflow out, preferably, the housing further has an outlet, which is arranged downstream of the inlet in the direction of the fluid, and the inlet is in fluid communication with the outlet through the dust suction port.

[0029] In order to further solve the second technical problem, the technical solution adopted by the present application is: a cleaning machine having the above-mentioned brush module, further comprising a dust separation module and a fan module, the brush module, the dust separation module and the fan module being arranged in sequence along the flow direction of the fluid.

[0030] Preferably, the cleaning machine is a dust collector or a scrubber.

[0031] Compared with the prior art, the advantage of the floor brush module for the cleaning machine lies in that the first end of the brush piece is rotatably connected to the bottom of the shell, so that the second end of the brush piece can swing relative to the shell, the flow guide channel can be opened when the brush piece swings to the first use state, and large particles can be smoothly collected by the flow guide channel, in addition, the output end of the driving mechanism can act on the surface to be cleaned and move the shell upward, so that the reset swing of the brush piece can be realized, compared with the existing disc brush structure, the brush piece can not only realize the sweeping and brushing of the surface to be cleaned, but also can avoid the obstruction caused by the collection of large particles at the same time, and is very practical. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic view of the overall structure of the floor brush module in the embodiment of the application.

[0033] Figure 2 It is a schematic view of the fluid flow in the shell.

[0034] Figure 3 It is a sectional view of the shell at the first angle.

[0035] Figure 4 It is a sectional view of the shell at the second angle.

[0036] Figure 5 It is a schematic view of the bottom of the shell.

[0037] Figure 6 It is a sectional view of the driving mechanism.

[0038] Figure 7 It is a schematic view of the overall cam.

[0039] Figure 8 It is a schematic view of the overall cam follower.

[0040] Figure 9 It is a schematic view of the overall cleaning machine. DETAILED DESCRIPTION

[0041] The application will be further described in detail below with reference to the embodiments of the drawings.

[0042] As Figures 1 to 9The shown is a preferred embodiment of the present application. In the embodiment, the floor brush module is applicable to a cleaning machine, which can be a vacuum cleaner or a scrubber, and the cleaning machine further comprises a dust separation module 102 and a fan module 103 in addition to the floor brush module 101, and the floor brush module 101, the dust separation module 102 and the fan module 103 are arranged in sequence along the flow direction of the fluid. Taking the scrubber as an example, the floor brush module in the embodiment specifically comprises a housing 1, at least two brush pieces 2 and a driving mechanism 3. The housing 1 is provided with a suction port 1b at the bottom, and the housing 1 is further provided with an inlet 1a for collecting fluid and solid particles at the front side in the advancing direction of the floor brush module, and a guide channel 10 is formed between the inlet 1a and the suction port 1b, and when the solid-liquid mixture is collected by negative pressure into the guide channel 10, it will flow downstream through the outlet 1c of the housing 1, and the dust separation module 102 is arranged along the flow direction of the fluid, and the outlet 1c is arranged downstream of the inlet 1a, and the inlet 1a is in fluid communication with the outlet 1c through the suction port 1b.

[0043] In order to realize the sweeping of the surface to be cleaned, the at least two brush pieces 2 are arranged on the bottom of the housing 1 and in the flow path of the fluid in the guide channel 10, and the housing 1 is provided with a mounting seat 11 at the front side in the advancing direction of the floor brush module, and the brush pieces 2 are connected to the mounting seat 11. In order to perform the sweeping action, the first end of each brush piece 2 in the embodiment is rotatably connected to the front side of the bottom of the housing 1, so that the second end thereof is deflected and swings relative to the housing 1. Specifically, the brush piece 2 is in the form of a strip, and the upper edge of the first end thereof has a rotating shaft 21 extending upward, and the mounting seat 11 is correspondingly provided with a mounting hole 12 for rotatingly constraining the rotating shaft 21 therein. In order to ensure that the brush piece 2 does not shake when swinging, the inner edge of the mounting hole 12 has a connecting sleeve 13 extending upward, and the outer periphery of the upper end of the rotating shaft 21 has a blocking edge 22 extending outward along the radial direction, and the blocking edge 22 abuts against the upper end of the connecting sleeve 13, so that the rotating shaft 21 is constrained in the connecting sleeve 13. In addition, the outer wall of the lower end of the rotating shaft 21 has an extension piece 23 extending outward along the radial direction, and the projection of the extension piece 23 on the plane of the mounting hole 12 covers the mounting hole 12. The thickness of the extension piece 23 in the embodiment gradually decreases from the inside to the outside. The design of the extension piece 23 can avoid the entry of sundries into the mounting hole 12, and can ensure smooth swinging of the brush piece 2. In addition, due to the presence of the extension piece 23, in addition to covering the mounting hole 12, the extension piece 23 can also abut against the peripheral edge of the mounting hole 12, which greatly offsets the transverse force acting on the rotating shaft of the entire brush piece 2 in the advancing direction of the floor brush module, reduces the strength requirement of the part, and also avoids shaking of the rotating shaft 21.

[0044] The brush 2 in the embodiment has the function of opening and closing the flow channel 10 in addition to performing the action of sweeping the surface to be cleaned. Since the brush module is placed on the surface to be cleaned during cleaning, the brush 2 can be in contact with the surface to be cleaned under the action of the gravity of the shell 1. When the cleaner is pushed forward, the brush 2 is in the first use state in which the extending direction of each brush 2 is consistent with the advancing direction of the brush module due to the friction between the brush 2 and the surface to be cleaned. When the shell 1 is separated from the surface to be cleaned, the brush 2 is no longer subjected to the friction, and thus the brush 2 can be separated from the surface to be cleaned under the action of the upward movement of the shell 1, so as to be reset to the second use state in which the extending direction of each brush 2 intersects with the advancing direction of the brush module.

[0045] The upward movement of the shell 1 is the key to the state switching of the brush 2. In the embodiment, the driving mechanism 3 is used as the power source. The driving mechanism 3 is arranged on the shell 1 and has a power output end capable of acting on the surface to be cleaned, so that the shell 1 is moved upward relative to the surface to be cleaned in the state in which the power output end of the driving mechanism 3 abuts against the surface to be cleaned. In the embodiment, the driving mechanism 3 is arranged at the bottom of the shell 1 and close to the rear side. The driving mechanism 3 has a cam 31 capable of intermittently acting on the surface to be cleaned, so as to move the shell 1 upward. Specifically, the driving mechanism 3 further includes a cooperating wheel 32 arranged side by side and coaxially with the cam 31. The cooperating wheel 32 and the cam 31 have protrusions alternately in contact with the surface to be cleaned.

[0046] The cooperating wheel 32 in the embodiment has a first guide wall 3a on the side close to the cam 31. The cam 31 has a second guide wall 3b corresponding to the first guide wall 3a on the corresponding side. The end of the first guide wall 3a has a first stop portion 301, and the second guide wall 3b has a second stop portion 302. The cooperating wheel 32 and the cam 31 can relatively rotate to make the first guide wall 3a and the second guide wall 3b relatively slide, so that the first stop portion 301 and the second stop portion 302 are buckled to abut against each other, thereby making the cooperating wheel 32 and the cam 31 interlock and link. In addition, along the extension direction of the rotation axis 21 of the cooperating wheel 32 or the cam 31, the thickness of one of the first guide wall 3a and the second guide wall 3b gradually increases, and the thickness of the other gradually decreases. In addition, the driving mechanism 3 further includes a first elastic member 34 acting on the cooperating wheel 32 or the cam 31, so that the first guide wall 3a and the second guide wall 3b always have the tendency of being fitted.

[0047] To facilitate the assembly of the cooperating wheel 32 and the cam 31, the aforementioned drive mechanism 3 further includes an inner shell 30. Both the cooperating wheel 32 and the cam 31 are rotatably constrained within the inner shell 30. A slot 14 for the inner shell 30 to be fitted is correspondingly provided at the bottom of the shell 1. A rotating shaft 33 is provided through the inner shell 30, and the cooperating wheel 32 and the cam 31 are coaxial with the rotating shaft 33. The first elastic element 34 is a spring piece disposed in the inner shell 30, and the two ends of the spring piece abut against the inner wall of the inner shell 30 and the outer wall of the cam 31, respectively.

[0048] In this embodiment, the mounting base 11 has at least two brush pieces 2 arranged along its length, and the mounting base 11 has mounting holes 12 at the first end of each brush piece 2. The spacing between the mounting holes 12 is no greater than the length of the brush piece 2, so that adjacent brush pieces 2 can overlap. The aforementioned floor brush module also includes a second elastic member 24, see [link to documentation]. Figure 3 The second elastic element 24 acts on the brush 2 when the housing 1 is in an upward moving state, so that the brush 2 always tends to rotate to close the flow channel 10 and be in the second use state. In this embodiment, the second elastic element 24 is a torsion spring sleeved on the rotating shaft 21. This arrangement of the brush 2 allows the second elastic element 24 to not only drive the brush 2 to reset, but also to achieve mutual cleaning between the brushes 2. Since the brush 2 is no longer subjected to the friction force of the surface to be cleaned when it resets, the brush 2 can swing in the opposite direction under the drive of the elastic restoring force of the second elastic element 24. Since the elastic restoring force is not exhausted when the brush 2 resets and the brush 2 has inertia when it resets, the second end of the previous brush 2 can forcefully strike the first end of the next brush 2. At this time, the hair attached to the two brushes 2 or the debris and particles stuck in the flow channel can be loosened under the intermittent striking action and eventually sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush 2 and the flow channel 10.

[0049] 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.

[0050] Furthermore, directional terms such as "front", "back", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used with reference to the exemplary orientation of the disclosed embodiments shown in the drawings and are merely used for convenience and do not supersede interpretation of the various example structures and elements shown in the drawings. Since the disclosed embodiments can be positioned in different orientations, these directional terms are used only to describe the exemplary orientation of the drawings and are not to be construed as limiting. For example, "upper" and "lower" are not necessarily limited to the opposite of the gravitational direction or the direction of the force of gravity.

Claims

1. A floor brush module for a cleaning machine, comprising: a housing (1) having a suction port (1b) at the bottom thereof, and an inlet (1a) for collecting fluid and solid particles at the front side of the housing (1) in the direction of movement of the floor brush module, and a flow channel (10) being formed between the inlet (1a) and the suction port (1b); characterized in that it further comprises: at least two brush members (2) being arranged at the bottom of the housing (1) and in the flow path of fluid in the flow channel (10), and the first end of each of the brush members (2) is rotatably connected to the front side of the bottom of the housing (1) so that the second end thereof is able to swing relative to the housing (1), and the brush member (2) is able to contact the surface to be cleaned and swing to a first use state under the friction of the surface to be cleaned so as to facilitate the entry of large particles into the flow channel (10), and in the first use state, the extension direction of each of the brush members (2) is consistent with the direction of movement of the floor brush module; or the brush member (2) is able to be out of contact with the surface to be cleaned when the housing (1) is in an upward moving state, so as to reset to a second use state for closing the flow channel (10), and in the second use state, the extension direction of each of the brush members (2) intersects with the direction of movement of the floor brush module; and a driving mechanism (3) being arranged on the housing (1) and having a power output end capable of acting on the surface to be cleaned so that the housing (1) is able to move upward relative to the surface to be cleaned when the power output end of the driving mechanism (3) abuts against the surface to be cleaned; the driving mechanism (3) is arranged at the bottom of the housing (1) and adjacent to the rear side, and the driving mechanism (3) has a cam (31) capable of intermittently acting on the surface to be cleaned so as to move the housing (1) upward; the driving mechanism (3) further comprises a cooperating wheel (32) which is arranged side by side and coaxial with the cam (31), and the cooperating wheel (32) and the convex portion of the cam (31) are alternately in contact with the surface to be cleaned; the cooperating wheel (32) has a first guide wall (3a) on the side adjacent to the cam (31), and the cam (31) has a second guide wall (3b) on the corresponding side which matches the first guide wall (3a), wherein the end of the first guide wall (3a) has a first stop portion (301), and the second guide wall (3b) has a second stop portion (302), and the cooperating wheel (32) and the cam (31) are capable of relatively rotating so that the first guide wall (3a) and the second guide wall (3b) relatively slide, so that the first stop portion (301) and the second stop portion (302) are buckled and abut against each other, thereby making the cooperating wheel (32) and the cam (31) interlock and cooperate.

2. The brush module of claim 1, wherein: the housing (1) is provided with a mounting seat (11) at the front side thereof in the direction of movement of the floor brush module, and the brush member (2) is connected to the mounting seat (11).

3. The brush module of claim 2, wherein: the brush member (2) is in the form of a strip, and the upper edge of the first end thereof has a rotating shaft (21) extending upward, and the mounting seat (11) has a mounting hole (12) corresponding thereto and formed so as to rotatably constrain the rotating shaft (21) therein.

4. The brush module of claim 3, wherein: The inner edge of the mounting hole (12) has a connecting sleeve (13) extending upwardly, the outer periphery of the upper end of the rotating shaft (21) has a blocking edge (22) extending radially outwardly, and the blocking edge (22) abuts against the upper end of the connecting sleeve (13) to constrain the rotating shaft (21) in the connecting sleeve (13).

5. The brush module of claim 4, wherein: The outer wall of the lower end of the rotating shaft (21) has an extending piece (23) extending radially outwardly, and the projection of the extending piece (23) on the plane where the mounting hole (12) is located covers the mounting hole (12).

6. The brush module of claim 5, wherein: The thickness of the extending piece (23) gradually decreases from inside to outside.

7. The brush module of claim 6, wherein: In the extending direction of the rotating shaft (21) line of the cooperating wheel (32) or cam (31), the thickness of one of the first guide wall (3a) and the second guide wall (3b) gradually increases, and the thickness of the other gradually decreases.

8. The brush module of claim 7, wherein: The driving mechanism (3) further comprises a first elastic member (34) acting on the cooperating wheel (32) or cam (31) to make the first guide wall (3a) and the second guide wall (3b) always have a tendency to fit.

9. The brush module of claim 8, wherein: The driving mechanism (3) further comprises an inner shell (30), and the cooperating wheel (32) and the cam (31) are rotatably constrained in the inner shell (30), and the bottom of the shell (1) is correspondingly provided with a slot (14) for embedding the inner shell (30).

10. The brush module of claim 9, wherein: The inner shell (30) is provided with a rotating shaft (33), and the cooperating wheel (32) and the cam (31) are coaxial with the rotating shaft (33), and the first elastic member (34) is a spring piece arranged in the inner shell (30), and the two ends of the spring piece abut against the inner wall of the inner shell (30) and the outer wall of the cam (31) respectively.

11. The brush module of claim 10, wherein: The mounting seat (11) is provided with at least two brush members (2) in the length direction, and the mounting seat (11) is provided with a mounting hole (12) at a position corresponding to the first end of each brush member (2).

12. The brush module of claim 11, wherein: The distance between each mounting hole (12) is not greater than the length of the brush member (2), so that the two adjacent brush members (2) are overlapped.

13. The brush module of claim 12, wherein: Further comprising a second elastic member (24) capable of acting on the brush member (2) when the shell (1) is in an upward moving state, so that the brush member (2) always has a tendency to rotate to close the flow guide channel (10) and be in a second use state.

14. The brush module of claim 13, wherein: The second elastic member (24) is a torsion spring sleeved on the rotating shaft (21).

15. The brush module of claim 14, wherein: The shell (1) further has an outlet (1c), and the outlet (1c) is arranged downstream of the inlet (1a) in the direction of the fluid, and the inlet (1a) is in fluid communication with the outlet (1c) through the dust suction port (1b).

16. A cleaning machine having a floor brush module as claimed in any one of claims 1 to 15, characterised in that, Further comprising a dust separation module (102) and a fan module (103), and the floor brush module (101), the dust separation module (102) and the fan module (103) are arranged in sequence in the flow direction of the fluid.

17. The cleaning machine of claim 16, wherein: The cleaning machine is a dust collector or a scrubber.

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