Floor brush module for cleaning machine and cleaning machine

Abstract

According to the floor brush module for the cleaning machine and the cleaning machine, a dust suction opening is formed in the bottom of a shell, an inlet is further formed in the front side of the shell, a flow guide channel is formed between the inlet and the dust suction opening, and due to the fact that the first end of a brush part is rotatably connected to the bottom of the shell, the second end of the brush part can swing relative to the shell; when the disc brush structure swings to the first use state, the flow guide channel can be opened, large particles can be smoothly collected by the flow guide channel, in addition, due to the fact that the output end of the driving mechanism can act on the to-be-cleaned surface and enables the shell to move upwards, reset swing of the brush piece can be achieved, and compared with an existing disc brush structure, the disc brush structure is more convenient to use. And the brush piece not only can sweep the surface to be cleaned, but also can avoid obstruction caused when large particles are collected at the same time, and is very practical.

Description

Technical Field

[0001] The invention relates to the field of household cleaning tools, and in particular to a floor brush module for a cleaning machine and a cleaning machine. Background Art

[0002] A cleaning machine is a relatively common portable cleaning device for household use. It first appeared in the form of a vacuum cleaner and can only be used in dry environments. In order to meet the needs of use in more environments, especially in wet environments, products such as floor scrubbers have been developed. Most existing floor scrubbers use a front roller brush structure. By setting a roller brush that can rotate relative to the casing on the front side of the casing, the area covered by the roller brush can be swept and cleaned, which is very convenient. However, a floor scrubber with a roller brush structure can easily cause hair to be entangled on the roller brush after cleaning. At the same time, the roller brush is placed in front of the suction port, which is not conducive to the collection of large particles of residue.

[0003] In order to avoid many problems such as hair entanglement, the applicant's prior application disclosed a cleaning machine with a roller brushless structure, and its patent application number is CN202122959279.4 (authorization announcement number is CN216776859U). By arranging a disc brush in the negative pressure chamber on the front side of the suction port, hair entanglement can be avoided to a great extent, and the gaps left between the disc brushes can allow large particles to enter the negative pressure interval, which is convenient for collecting dirt in different forms.

[0004] Although the above-mentioned cleaning machine has solved the defect of hair entanglement to a certain extent and improved the collection capacity of large particles of debris, since the disc brush needs to cover a sufficient brushing area when sweeping, the collection of large particles is still restricted by the size of the gap between the disc brushes, and there is still a risk of large particles of debris getting stuck when in use.

[0005] Therefore, there is a need to further improve the existing cleaning machine floor brush module. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a floor brush module for a cleaning machine that utilizes a brush member to swing to open and close a guide channel to collect debris in view of the current status of the prior art.

[0007] The second technical problem to be solved by the present invention 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 invention to solve the above-mentioned first technical problem is: a floor brush module for a cleaning machine, comprising:

[0009] A shell, with a dust suction port at the bottom, the shell also has an inlet for collecting fluid and solid particles on the front side of the floor brush module in the direction of travel, and a guide channel is formed between the inlet and the dust suction port;

[0010] At least two brush members are evenly arranged at the bottom of the shell and located on the flow path of the fluid in the guide channel. The first end of each brush member can be rotatably connected to the front side of the bottom of the shell so that the second end thereof can be deflected and swung relative to the shell, and the brush member can contact the surface to be cleaned and swing to a first use state that facilitates large particles to enter the guide channel under the friction of the surface to be cleaned. In the first use state, the extension direction of each brush member is consistent with the travel direction of the floor brush module; or, the brush member can be disengaged from the contact with the surface to be cleaned when the shell is in an upward moving state, thereby resetting to a second use state that closes the guide channel. In the second use state, the extension direction of each brush member intersects with the travel direction of the floor brush module; and

[0011] The driving mechanism is arranged on the shell and its power output end can act on the surface to be cleaned, so that the shell can move upward relative to the surface to be cleaned when the 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 shell. In order to enable the brush member to perform the sweeping action at the first time while the floor brush module moves, preferably, the shell is provided with a mounting seat on the front side of the moving direction 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, preferably, the brush is in a strip shape, and the upper edge of the first end thereof has a rotating shaft extending upward, and the mounting seat is correspondingly provided with a mounting hole for the rotating shaft to be constrained in rotation.

[0014] In order to prevent the brush from falling off, specifically, the inner edge of the mounting hole has a connecting sleeve extending upward, and the outer periphery of the upper end of the rotating shaft has a retaining edge extending radially outward, and the retaining edge 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 extension piece extending radially outward, and the projection of the extension piece on the plane where the mounting hole is located covers the mounting hole. The design of such an extension piece can, on the one hand, prevent debris from entering the mounting hole, and ensure smooth swinging of the brush member; on the other hand, due to the existence of the extension piece, in addition to covering the mounting hole, it can also abut against the periphery of the mounting hole, greatly offsetting the lateral force on the rotating shaft of the entire brush member in the direction of travel of the floor brush module, reducing the strength requirements of the parts, and preventing the rotating shaft from shaking.

[0016] Specifically, the thickness of the extension piece gradually decreases from the inside to the outside. This design of the extension piece further enhances the strength of the rotating shaft, and the gradient change in thickness enables the extension piece near the inner side of the rotating shaft to bear most of the external forces on the brush member, and at the same time, the thinner portion of the outer edge of the extension piece will not hinder the flow of the 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 adjacent to the rear side, and the driving mechanism has a cam, and the cam 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 to ensure that it can contact the surface to be cleaned in the next rotation cycle, the driving mechanism also includes a cooperating wheel, which is parallel and coaxial with the cam, and the convex parts of the cooperating wheel and the cam alternately contact the surface to be cleaned.

[0019] There are various structures for realizing interlocking and relative rotation between 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 matching the first guide wall on the corresponding side, wherein the end of the first guide wall has a first stop portion, and the second guide wall has a second stop portion. The cooperating wheel and the cam can make the first guide wall and the second guide wall slide relative to each other in a state of relative rotation, so that the first stop portion and the second stop portion are snapped and abutted against each other, thereby making the cooperating wheel and the cam in an interlocking state and linked.

[0020] Specifically, along the extending direction of the rotating 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 one gradually decreases.

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

[0022] Specifically, the driving mechanism further includes an inner shell, the cooperating wheel and the cam are both rotatably constrained in the inner shell, and a notch for embedding the inner shell is correspondingly opened at the bottom of the shell.

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

[0024] In order to ensure that the floor brush module has a sufficient sweeping area, preferably, the mounting seat is provided with at least two brush members in the length direction, and the mounting seat is provided with a mounting hole at a position corresponding to the first end of each brush member.

[0025] Preferably, the floor brush module further includes a second elastic member, which can act on the brush member when the shell is in an upward moving state, so that the brush member always has a tendency to rotate to close the 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 prevent hair and large particles from getting stuck in the brush element, specifically, the spacing between the mounting holes is not greater than the length of the brush element, so that two adjacent brush elements can overlap. The arrangement of the brush element in this way enables the second elastic element to not only drive the brush element to reset, but also enable the brush elements to clean each other. Since the brush element is no longer affected by the friction of the surface to be cleaned when it is reset, the brush element can swing in the opposite direction driven by the elastic restoring force of the second elastic element. Since the elastic restoring force is not exhausted during the reset swing, and there is inertia in the reset swing of the brush element, the second end of the previous brush element can slap the first end of the next brush element vigorously. At this time, the hair attached to the two brush elements or the debris and particles stuck in the guide channel can be loosened by the intermittent slapping action, and finally sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush element and the guide channel.

[0028] In order to realize the extraction of negative pressure airflow, preferably, the shell further has an outlet, and along the direction of the fluid, the outlet is arranged downstream of the inlet, and the inlet is connected with the outlet fluid through the dust suction port.

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

[0030] Preferably, the cleaning machine is a vacuum cleaner or a floor scrubber.

[0031] Compared with the prior art, the advantages of the present invention are: in the floor brush module for the cleaning machine, since the first end of the brush element can be rotatably connected to the bottom of the shell, the second end thereof can swing relative to the shell, and when it swings to the first use state, the guide channel can be opened, and large particles can be smoothly collected by the guide channel. In addition, since the output end of the driving mechanism can act on the surface to be cleaned and move the shell upward, the reset swing of the brush element can be realized. Compared with the existing disc brush structure, the brush element can not only sweep the surface to be cleaned, but also avoid the obstruction caused by the collection of large particles, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the floor brush module in an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the fluid flow inside the shell;

[0034] Figure 3 is a cross-sectional view of the housing at a first angle;

[0035] Figure 4 is a cross-sectional view of the housing at a second angle;

[0036] Figure 5 A schematic diagram of the bottom of the housing;

[0037] Figure 6 Overall cross-sectional view of the drive mechanism;

[0038] Figure 7 It is the overall schematic diagram of the cam;

[0039] Figure 8 is the overall schematic diagram of the cooperative wheel;

[0040] Fig. 9 This is an overall schematic diagram of the cleaning machine. DETAILED DESCRIPTION

[0041] The present invention is further described in detail below with reference to the accompanying drawings.

[0042] like Figures 1 to 9As shown, it is a preferred embodiment of the present invention. In this embodiment, the floor brush module is suitable for a cleaning machine, and the cleaning machine mentioned here can be a vacuum cleaner or a floor scrubber, and in addition to the above-mentioned floor brush module 101, the cleaning machine also includes 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 along the flow direction of the fluid. Taking the floor scrubber as an example, the floor brush module in this embodiment specifically includes a housing 1, at least two brush members 2 and a driving mechanism 3. The above-mentioned housing 1 is provided with a dust suction port 1b at the bottom, and the housing 1 also has an inlet 1a for collecting fluid and solid particles on the front side of the floor brush module in the direction of travel, and a guide channel 10 is formed between the inlet 1a and the dust suction port 1b. When the solid-liquid mixture is collected to the guide channel 10 by negative pressure, it will flow downstream through the outlet 1c of the housing 1, and the dust separation module 102, along the direction of the fluid, the above-mentioned outlet 1c is arranged downstream of the inlet 1a, and the inlet 1a is fluidly connected to the outlet 1c through the dust suction port 1b.

[0043] In order to realize the sweeping and brushing of the surface to be cleaned, the at least two brush members 2 mentioned above are evenly arranged at the bottom of the housing 1 and located on the flow path of the fluid in the guide channel 10, and the housing 1 is provided with a mounting seat 11 on the front side of the moving direction of the floor brush module, and the brush member 2 is connected to the mounting seat 11. In order to perform the sweeping and brushing action, the first end of each brush member 2 in this embodiment can be rotatably connected to the front side of the bottom of the housing 1, so that the second end thereof can deflect and swing relative to the housing 1. Specifically, the brush member 2 mentioned above is in the shape 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 the rotating shaft 21 to be constrained in rotation. In order to ensure that the brush member 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 retaining edge 22 extending radially outward, and the retaining 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 at the lower end of the rotating shaft 21 has an extension piece 23 extending radially outward, and the projection of the extension piece 23 on the plane where the mounting hole 12 is located covers the mounting hole 12. The thickness of the extension piece 23 in this embodiment gradually decreases from the inside to the outside. The design of the extension piece 23 can, on the one hand, prevent debris from entering the mounting hole 12, and ensure the smooth swinging of the brush member 2; on the other hand, due to the existence of the extension piece 23, in addition to covering the mounting hole 12, it can also abut against the periphery of the mounting hole 12, greatly offsetting the lateral force on the rotating shaft of the entire brush member 2 in the direction of travel of the floor brush module, reducing the strength requirements of the parts, and preventing the rotating shaft 21 from shaking.

[0044] In addition to sweeping the surface to be cleaned, the brush member 2 in this embodiment also has the function of opening and closing the guide channel 10. Since the floor brush module will be placed on the surface to be cleaned during cleaning, the brush member 2 can contact the surface to be cleaned under the action of the gravity of the shell 1. When the cleaning machine is pushed forward, due to the friction between the brush member 2 and the surface to be cleaned, when the cleaning machine is moving, the brush member 2 that receives the friction of the surface to be cleaned will swing to a first use state that facilitates large particles to enter the guide channel 10. In the first use state, the extension direction of each brush member 2 is consistent with the travel direction of the floor brush module; or, when the shell 1 is separated from the surface to be cleaned, the brush member 2 is no longer subjected to friction, so the brush member 2 can be separated from the contact with the surface to be cleaned under the action of the upward movement of the shell 1, thereby resetting to the second use state of closing the guide channel 10. In the second use state, the extension direction of each brush member 2 intersects with the travel direction of the floor brush module.

[0045] The upward movement of the housing 1 is the key to the state switching of the brush 2. In this embodiment, a driving mechanism 3 is used as a power source. The driving mechanism 3 is arranged on the housing 1 and its power output end can act on the surface to be cleaned, so that the housing 1 moves upward relative to the surface to be cleaned when the output end of the driving mechanism 3 is in contact with the surface to be cleaned. The driving mechanism 3 in this embodiment is arranged at the bottom of the housing 1 and close to the rear side, and the driving mechanism 3 has a cam 31, which can intermittently act on the surface to be cleaned to move the housing 1 upward. Specifically, the driving mechanism 3 also includes a cooperating wheel 32, which is parallel and coaxial with the cam 31, and the convex parts of the cooperating wheel 32 and the cam 31 contact the surface to be cleaned alternately.

[0046] The cooperative wheel 32 in this embodiment has a first guide wall 3a on the side adjacent to the cam 31, and the cam 31 has a second guide wall 3b matching the first guide wall 3a on the corresponding side, 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. The cooperative wheel 32 and the cam 31 can make the first guide wall 3a and the second guide wall 3b slide relative to each other in the state of relative rotation, so that the first stop portion 301 and the second stop portion 302 snap and abut against each other, thereby making the cooperative wheel 32 and the cam 31 in an interlocking state and linked. In addition, along the extension direction of the rotation axis 21 line of the cooperative 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 above-mentioned driving mechanism 3 also includes a first elastic member 34, which acts on the cooperative wheel 32 or the cam 31, so that the first guide wall 3a and the second guide wall 3b always have a tendency to fit.

[0047] In order to realize the assembly of the cooperative wheel 32 and the cam 31, the driving mechanism 3 further includes an inner shell 30, and the cooperative wheel 32 and the cam 31 are both rotatably constrained in the inner shell 30. The bottom of the housing 1 is correspondingly provided with a notch 14 for the inner shell 30 to be embedded. A rotating shaft 33 is passed through the inner shell 30, and the cooperative wheel 32 and the cam 31 are coaxial with the rotating shaft 33. The first elastic member 34 is a spring sheet arranged in the inner shell 30, and the two ends of the spring sheet are respectively against the inner wall of the inner shell 30 and the outer wall of the cam 31.

[0048] The mounting base 11 in this embodiment is provided with at least two brush members 2 in the length direction, and the mounting base 11 is provided with mounting holes 12 at positions corresponding to the first ends of each brush member 2. The spacing between the mounting holes 12 is not greater than the length of the brush member 2, so that two adjacent brush members 2 can overlap. The above-mentioned floor brush module also includes a second elastic member 24, see Figure 3 , the second elastic member 24 can act on the brush member 2 when the housing 1 is in an upward moving state, so that the brush member 2 always has a tendency to rotate to close the guide channel 10 and be in the second use state. The second elastic member 24 in this embodiment is a torsion spring sleeved on the rotating shaft 21. The arrangement of the brush member 2 in this way enables the second elastic member 24 to achieve the purpose of mutual cleaning between the brush members 2 in addition to driving the brush member 2 to reset. Since the brush member 2 is no longer affected by the friction force of the surface to be cleaned when it is reset, the brush member 2 can swing in the opposite direction under the drive of the elastic restoring force of the second elastic member 24. Since the elastic restoring force is not exhausted during the reset swing, and the reset swing of the brush member 2 has inertia, the second end of the previous brush member 2 can slap the first end of the next brush member 2 with great force. At this time, the hair attached to the two brush members 2 or the debris and particles stuck in the guide channel can be loosened under the intermittent slapping action and finally sucked away by the negative pressure, which is equivalent to achieving self-cleaning of each brush member 2 and the guide channel 10.

[0049] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

[0050] In addition, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used in the specification and claims of the present invention to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" 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: A shell (1) having a dust suction port (1b) at its bottom, the shell (1) also having an inlet (1a) for collecting fluid and solid particles on the front side in the direction of travel of the floor brush module, and a flow guide channel (10) is formed between the inlet (1a) and the dust suction port (1b); It is characterized by also including: At least two brush members (2) are evenly arranged at the bottom of the shell (1) and located on the flow path of the fluid in the guide channel (10); the first end of each brush member (2) is rotatably connected to the front side of the bottom of the shell (1) so that the second end thereof can be deflected and swung relative to the shell (1); and the brush member (2) can contact the surface to be cleaned and swing to a first use state that facilitates large particles to enter the guide channel (10) under the friction of the surface to be cleaned. In the first use state, the extension direction of each brush member (2) is consistent with the travel direction of the floor brush module; or, when the shell (1) is in an upward moving state, the brush member (2) can be disengaged from the contact with the surface to be cleaned, thereby resetting to a second use state that closes the guide channel (10); in the second use state, the extension direction of each brush member (2) intersects with the travel direction of the floor brush module; and The driving mechanism (3) is arranged on the housing (1) and its power output end can act on the surface to be cleaned, so that the housing (1) can move upward relative to the surface to be cleaned when the output end of the driving mechanism (3) abuts against the surface to be cleaned.

2. The floor brush module according to claim 1, characterized in that: The housing (1) is provided with a mounting seat (11) on the front side of the floor brush module in the direction of travel, and the brush element (2) is connected to the mounting seat (11).

3. The floor brush module according to claim 2, characterized in that: The brush element (2) is strip-shaped, and has an upwardly extending rotating shaft (21) on the upper edge of its first end. The mounting seat (11) is correspondingly provided with a mounting hole (12) for the rotating shaft (21) to be rotated and constrained therein.

4. The floor brush module according to claim 3, characterized in that: The inner edge of the mounting hole (12) is provided with a connecting sleeve (13) extending upward, and the outer periphery of the upper end of the rotating shaft (21) is provided with a retaining edge (22) extending radially outward, and the retaining 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).

5. The floor brush module according to claim 4, characterized in that: The outer wall of the lower end of the rotating shaft (21) has an extension piece (23) extending outward in a radial direction, and the projection of the extension piece (23) on the plane where the mounting hole (12) is located covers the mounting hole (12).

6. The floor brush module according to claim 5, characterized in that: The thickness of the extension piece (23) gradually decreases from the inside to the outside.

7. The floor brush module according to claim 6, characterized in that: The driving mechanism (3) is arranged at the bottom of the housing (1) and close to the rear side, and the driving mechanism (3) has a cam (31). The cam (31) can intermittently act on the surface to be cleaned to move the housing (1) upward.

8. The floor brush module according to claim 7, characterized in that: The driving mechanism (3) further comprises a cooperating wheel (32), the cooperating wheel (32) and the cam (31) are arranged side by side and coaxially, and the convex parts of the cooperating wheel (32) and the cam (31) contact the surface to be cleaned alternately.

9. The floor brush module according to claim 8, characterized in that: 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) matching the first guide wall (3a) on the corresponding side, 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). The cooperating wheel (32) and the cam (31) can make the first guide wall (3a) and the second guide wall (3b) slide relative to each other in a state of relative rotation, so that the first stop portion (301) and the second stop portion (302) are locked and abutted against each other, thereby making the cooperating wheel (32) and the cam (31) in an interlocking state and linked.

10. The floor brush module according to claim 9, characterized in that: Along the extending direction of the rotating 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, while the thickness of the other gradually decreases.

11. The floor brush module according to claim 10, characterized in that: The driving mechanism (3) also includes a first elastic member (34), which acts on the cooperating wheel (32) or the cam (31) so that the first guide wall (3a) and the second guide wall (3b) always have a tendency to fit together.

12. The floor brush module according to claim 11, characterized in that: The driving mechanism (3) further comprises an inner shell (30), the cooperating wheel (32) and the cam (31) are both rotatably restrained in the inner shell (30), and a notch (14) for embedding the inner shell (30) is correspondingly provided at the bottom of the housing (1).

13. The floor brush module according to claim 12, characterized in that: The inner shell (30) is provided with a rotating shaft (33), the cooperating wheel (32) and the cam (31) are coaxial with the rotating shaft (33), and the first elastic member (34) is a spring sheet arranged in the inner shell (30), and the two ends of the spring sheet are respectively against the inner wall of the inner shell (30) and the outer wall of the cam (31).

14. The floor brush module according to claim 13, characterized in that: 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).

15. The floor brush module according to claim 14, characterized in that: The spacing between the mounting holes (12) is no greater than the length of the brush member (2), so that two adjacent brush members (2) can overlap.

16. The floor brush module according to claim 15, characterized in that: It also includes a second elastic member (24) which can act on the brush member (2) when the housing (1) is in an upwardly moving state, so that the brush member (2) always has a tendency to rotate to close the guide channel (10) and be in a second use state.

17. The floor brush module according to claim 16, characterized in that: The second elastic member (24) is a torsion spring sleeved on the rotating shaft (21).

18. The floor brush module according to claim 17, characterized in that: The housing (1) further comprises an outlet (1c), which is arranged downstream of the inlet (1a) along the direction of the fluid, and the inlet (1a) is fluidically connected to the outlet (1c) through the dust suction port (1b).

19. A cleaning machine, comprising a floor brush module as claimed in any one of claims 1 to 18, characterized in that: It also includes a dust separation module (102) and a fan module (103), wherein 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.

20. The cleaning machine according to claim 19, characterized in that: The cleaning machine is a vacuum cleaner or a floor scrubber.

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