CN220024920U

CN220024920U - Brush head module for cleaning machine and cleaning machine

Info

Publication number: CN220024920U
Application number: CN202320394584.XU
Authority: CN
Inventors: 柳博闻; 姜涛; 韦明祥; 张旭东; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-11-17
Anticipated expiration: 2033-02-27

Abstract

The utility model relates to a brush head module for a cleaning machine and the cleaning machine, the brush head module for the cleaning machine comprises a shell, a cleaning device and a cleaning device, wherein a cavity is formed in the shell, a dirt sucking port is formed in the bottom of the shell, and an air outlet is formed in the shell; the rolling brush comprises a roll shaft which can be rotatably arranged in the cavity, a first brush strip and a second brush strip which are spirally arranged are sequentially arranged on the peripheral wall of the roll shaft along the axial direction of the roll shaft, and the rotation directions of the first brush strip and the second brush strip are opposite; the cutting knife is relatively fixed in the cavity and provided with a cutting part positioned in the accommodating groove. The hair winding in the accommodating groove is avoided, and the cut hair is discharged through the gap and the air outlet, so that the complexity caused by manual cleaning is reduced.

Description

Brush head module for cleaning machine and cleaning machine

Technical Field

The utility model belongs to the field of household washing and cleaning, and particularly relates to a brush head module for a cleaning machine and the cleaning machine.

Background

Currently, a cleaning machine is a floor washing machine, a dust collector or a floor sweeping machine, which sucks a mixture of dust and the like mixed with water vapor on the floor into a storage cavity thereof.

The prior cleaning machine such as a rolling brush rod, a cleaning mechanism and a floor sweeping machine is disclosed in Chinese patent No. ZL202123250101.9 (issued to the public No. CN 216932986U), and comprises a first rolling brush separating rod and a second rolling brush separating rod, gaps exist between the first rolling brush separating rod and the second rolling brush separating rod, the first rolling brush separating rod and the second rolling brush separating rod are of spiral structures, and when the rolling brush rod rotates, garbage attached to the rolling brush rod can be transferred from two sides to the middle gaps. The above patent realizes that the garbage is transferred to the middle gap, and the hair is easy to wind in the gap, so that the cleaning difficulty in the gap of the rolling brush is increased.

Accordingly, there is a need for further improvements to existing brush head modules for use in cleaning machines.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a brush head module for a cleaning machine, which is capable of collecting hair together and automatically cleaning the hair.

The second technical problem to be solved by the utility model is to provide a brush head module for automatically cleaning and rapidly discharging the hair wound in the accommodating groove.

The third technical problem to be solved by the utility model is to provide a cleaner, wherein the brush head module can float up and down in the travelling process of the cleaner so as to shake the cut hair.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: a brush head module for a cleaning machine, for advancing the cleaning machine, comprising:

the shell is internally provided with a cavity extending along the left-right direction, the bottom of the shell is provided with a dirt sucking port communicated with the cavity and provided with a downward opening, and the shell is provided with an air outlet communicated with the cavity;

the rolling brush is used for brushing the surface to be cleaned and comprises a roll shaft which is rotatably arranged in the cavity, and a first brush strip and a second brush strip which are spirally arranged are sequentially arranged on the peripheral wall of the roll shaft along the axial direction of the roll shaft, and the rotation directions of the first brush strip and the second brush strip are opposite;

the hair-washing machine is characterized in that a gap is reserved between the first brush bar and the second brush bar, the peripheral wall of the roller shaft corresponding to the gap is provided with a containing groove for containing hair, and the containing groove extends along the circumferential direction of the roller shaft; the brush head module also comprises:

and the cutting knife is used for cutting hair, is relatively fixed in the cavity and is provided with a cutting part positioned in the accommodating groove.

The chamber extends in the left-right direction, and the roller shaft is positioned in the chamber, and the roller shaft also extends in the left-right direction. The roller of the brush head module is provided with the accommodating groove for accommodating the hair at the gap between the first brush strip and the second brush strip, and the first brush strip and the second brush strip collect garbage and the hair from two sides to the accommodating groove in the rolling brush rotating process, wherein the hair is wound in the accommodating groove, the cutting knife relatively fixed with the shell is arranged, the cutting part of the cutting knife is positioned in the accommodating groove, and the cutting part cuts the hair in the accommodating groove in the rolling brush rotating process, namely automatically cuts the hair in the accommodating groove, so that the hair in the accommodating groove is prevented from winding, and the cut hair is discharged through the gap and the air outlet, thereby reducing the complexity caused by manual cleaning and more meeting the requirements of users.

The cutting part may have various structural forms, and may have a plurality of cutting teeth, but from the viewpoint of effectively cutting hair from the left and right sides, it is preferable that the cutting part includes first and second blades sequentially arranged along the circumferential direction of the roller shaft, the first and second blades being directed toward the first and second brush bars, respectively. In the rolling brush rotating process, the first brush strip and the second brush strip collect garbage from two sides to the middle and store the garbage in the accommodating groove, the first cutting edge cuts hairs coming from the direction of the first brush strip, and the second cutting edge cuts hairs coming from the direction of the second brush strip, so that hair winding is reduced, and complexity and inconvenience caused by manual cleaning are reduced.

The first blade and the second blade may also be formed at positions adjacent to the middle of the corresponding wall surfaces of the arc-shaped members, respectively, but from the viewpoint of cleaning ability, it is preferable that the cutter includes an arc-shaped member extending along the circumferential direction of the roller shaft, the arc-shaped member has a first surface facing the first brush bar and a second surface facing the second brush bar, the first blade is located at least partially on the inner edge of the first surface of the arc-shaped member and extends along the circumferential direction of the roller shaft, and the second blade is located at least partially on the inner edge of the second surface of the arc-shaped member and extends along the circumferential direction of the roller shaft.

The first cutting edge may be formed in different forms, and the inner edge of the arc part may be formed with sharp part similar to the cutting edge of kitchen knife, or may be formed with notch area, but from the point of cutting efficiency, it is preferable that the first surface of the arc part is recessed gradually from outside to inside along the radial direction of the roller shaft towards the second brush bar to form the first notch area, at least part of the periphery of the first notch area is the first cutting edge, the second surface of the arc part is recessed gradually from outside to inside along the radial direction of the roller shaft towards the first brush bar to form the second notch area, and at least part of the periphery of the second notch area is the second cutting edge.

In order to guide hair to the corresponding blade, the inner wall surface of the first recessed area is gradually inclined from outside to inside in the radial direction of the roller shaft toward the second brush bar direction, and the periphery of the first recessed area forms the first blade except for the outer edge thereof, the inner wall surface of the second recessed area is gradually inclined from outside to inside in the radial direction of the roller shaft toward the first brush bar direction, and the periphery of the second recessed area forms the second blade except for the outer edge thereof.

To increase the cutting area, the side wall of the first concave area adjacent to the concave area is parallel to the side wall of the second concave area adjacent to the first concave area

The arcuate member may be of a closed annular shape or may be of a C-shape, but from the standpoint of avoiding interference with the suction of the suction port, it is preferable that the arcuate member be of a C-shape.

In order to improve the cutting ability of hair, the first blades are arranged at intervals along the circumference of the roller shaft, and the second blades are positioned between the two first blades.

In order to improve the cutting ability of hair, it is also possible to use: the cutting knife is further provided with a cutting tooth part positioned in the accommodating groove, and the second cutting edge is positioned between the cutting tooth part and the first cutting edge.

In order to further improve the cutting ability of the hair, the number of the cutting teeth is plural and sequentially arranged along the circumferential direction of the roller shaft.

In order to improve the hardness and the wear resistance of the accommodating groove, the inner wall plate of the accommodating groove is a metal piece.

In order to improve the cleaning ability of the surface to be cleaned, the surfaces of the first brush bar and the second brush bar facing the gap are provided with convex parts extending towards the gap at positions adjacent to the outer edge of the surfaces. The existence of the convex parts increases the scraping force of the first brush bar and the second brush bar on the surface to be cleaned, and a better cleaning effect is achieved.

In order to further improve the cleaning capability, a plurality of convex parts are arranged on the first brush bar at intervals along the length direction of the first brush bar, and a plurality of convex parts are arranged on the second brush bar at intervals along the length direction of the second brush bar.

Further, the first brush strips and the second brush strips are all multiple, and the multiple first brush strips and the multiple second brush strips are all arranged at intervals along the circumference of the roll shaft.

The first brush bar and the second brush bar can be directly formed on the roller shaft, and can also be respectively installed on the roller shaft through the shaft sleeve, and from the aspects of convenient manufacture, disassembly and assembly and accessory replacement, preferably, the roller shaft is sleeved with a first shaft sleeve and a second shaft sleeve which are arranged at intervals along the length direction of the roller shaft, the first brush bar is formed on the first shaft sleeve, and the second brush bar is formed on the second shaft sleeve.

The technical scheme adopted by the utility model for solving the third technical problem is as follows: the accommodating groove is arranged opposite to the air outlet.

In order to better remove the garbage in time, the accommodating groove is correspondingly arranged with the middle area of the air outlet.

The air outlet may be located at a position adjacent to the top of the housing or at the rear of the housing, but from the viewpoint of cleaning effect, it is preferable that the air outlet is located at the rear of the housing and behind the roller brush, and the cutter is located above the top edge of the air outlet. In addition, the cutter is positioned on the top edge of the air outlet, so that the cutter is prevented from interfering the air outlet of the air outlet.

The purpose of conveniently cleaning the key area is achieved by changing the fluid flow speed at the left and right sides of the air outlet which is arranged at the left side area or the right side area deviating from the center of the cavity.

The technical scheme adopted by the utility model for solving the third technical problem is as follows: the cleaning machine with the brush head module is characterized by further comprising a machine body, wherein first sides of the front side and the rear side of the brush head module are rotatably connected to the machine body through a mounting shaft extending along the left-right direction, and second sides of the front side and the rear side of the brush head module are arranged to be capable of moving up and down relative to the machine body so as to be restrained on the machine body.

In order to limit the up-and-down movement of the brush head module, the machine body is provided with a limiting piece positioned on the bottom wall plate of the machine body, and a part of the second side of the brush head module is positioned between the limiting piece and the bottom wall plate of the machine body and moves up and down between the limiting piece and the bottom wall plate of the machine body. In addition, the second side of the brush head assembly can be rotatably arranged on the machine body through the connecting rod, and the second side of the brush head assembly can swing up and down relative to the machine body through the rotary connection between the connecting rod and the machine body.

In order to avoid the influence of the up-and-down swing of the brush head module on the exhaust, a separation module for separating dust and air is arranged on the machine body, and an air outlet of the brush head module is communicated with an air inlet of the separation module through a soft pipe capable of deforming. The existence of the soft pipe avoids the condition of air leakage between the brush head module and the separation module in the up-and-down swing process of the brush head module to influence exhaust.

The mounting shaft may be located on the front side of the brush head module or may be located on the rear side of the brush head module, preferably on the front side of the brush head module.

The cleaner may be a sweeper, a cleaner or a hand-held scrubber, but preferably the cleaner is a sweeper or scrubber.

Compared with the prior art, the utility model has the advantages that: the roller of the brush head module is provided with the accommodating groove for accommodating the hair at the gap between the first brush strip and the second brush strip, and in the process of rolling brush rotation, the first brush strip and the second brush strip collect garbage and hair from two sides to the direction of the accommodating groove because of opposite rotation directions of the first brush strip and the second brush strip, the hair is gathered and wound in the accommodating groove, and the cutting part of the cutting knife is positioned in the accommodating groove by arranging the cutting knife relatively fixed with the shell.

Drawings

Fig. 1 is a schematic structural view of a brush head module of the present embodiment 1;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

FIG. 3 is a transverse cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of a portion of the structure of FIG. 1;

FIG. 5 is a schematic diagram of the cutter of FIG. 1;

FIG. 6 is a structural view of the roller shaft of FIG. 1;

fig. 7 is a schematic view of a part of the structure of the sweeper of the embodiment 1;

FIG. 8 is a schematic view showing a structure in which the rolling brush is removed in the present embodiment 2;

fig. 9 is a sectional view of the brush head module of the present embodiment 2;

fig. 10 is a structural form of the cutter in embodiment 2.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Example 1:

as shown in fig. 1 to 7, the 1 st preferred embodiment of the present utility model. The cleaning machine of this embodiment is a sweeper, and the following is directed forward of the sweeper.

The brush head module of this embodiment comprises a housing 1, a roller brush 2 and a cutter 3. The inside of the casing 1 has a chamber 10 extending in the left-right direction, the bottom of the casing 1 has a dirt suction port 101 communicating with the chamber 10 and opening downward, and the casing 1 has an air outlet 102 communicating with the chamber 10. In the present embodiment, the air outlet 102 is located at the rear of the housing 1, behind the roller brush 2, and is arranged in a left or right region offset from the center of the chamber 10.

The roller brush 2 is used for brushing a surface to be cleaned, and comprises a roller shaft 21 rotatably arranged in the chamber 10, a first brush bar 221 and a second brush bar 231 which are sequentially arranged along the axial direction of the roller shaft 21 are arranged on the peripheral wall of the roller shaft 21, the roller shaft 21 extends along the left-right direction, the first brush bar 221 and the second brush bar 231 respectively spirally surround the peripheral wall of the roller shaft 21 along the axial direction of the roller shaft 21, and the rotation directions of the first brush bar 221 and the second brush bar 231 are opposite, namely, the first brush bar 221 and the second brush bar 231 are spirally arranged. Specifically, along the length direction of the roller shaft 21, a gap 24 is left between the first brush bar 221 and the second brush bar 231, and the first brush bar 221 and the second brush bar 231 are arranged in a staggered manner in the circumferential direction of the roller shaft 21. In order to facilitate the installation of the first brush bar and the second brush bar, the roller shaft 21 is sleeved with a first shaft sleeve 22 and a second shaft sleeve 23 which are arranged at intervals along the length direction of the roller shaft 21, the first brush bars 221 are formed on the peripheral wall of the first shaft sleeve 22, are multiple and are arranged at intervals along the circumferential direction of the first shaft sleeve 22, and the second brush bars 231 are formed on the peripheral wall of the second shaft sleeve 23, are multiple and are arranged at intervals along the circumferential direction of the second shaft sleeve 23. In this embodiment, the above-mentioned gap 24 is left between the first sleeve and the second sleeve.

The surfaces of the first brush bar 221 and the second brush bar 231 facing the gap 24 each have a convex portion 200 extending in the direction of the gap 24 at a position adjacent to the outer edge thereof. The plurality of protruding portions 200 on the first brush bar 221 are arranged at intervals along the length direction of the first brush bar 221, and the plurality of protruding portions 200 on the second brush bar 231 are arranged at intervals along the length direction of the second brush bar 231.

The roller shaft 21 has a receiving groove 211 for receiving hair on an outer peripheral wall of the corresponding gap 24, and the receiving groove 211 extends along a circumferential direction of the roller shaft 21. The accommodating groove 211 is arranged opposite to the air outlet 102, and the inner wall plate of the accommodating groove 211 is a metal piece. In this embodiment, the accommodating groove 211 is annular, and the accommodating groove 211 is disposed corresponding to the middle area of the air outlet 102, and the cutter 3 is located on the top edge of the air outlet 102. Specifically, the cutter 3 is used for cutting hair and is relatively fixed in the chamber 10, and the cutter 4 has a cutting portion located in the accommodating groove 211. The cutting portion includes a first blade 32 and a second blade 33 arranged in this order along the circumferential direction of the roller shaft 21, the first blade 32 and the second blade 33 facing the first brush bar 221 and the second brush bar 231, respectively. The first blades 32 in this embodiment are two and are arranged at intervals along the circumferential direction of the roller shaft 21, and the second blade 33 is located between the two first blades 32.

The cutter 3 includes an arc-shaped member 31 extending in the circumferential direction of the roller shaft 21, and the arc-shaped member 31 is C-shaped and sheet-shaped. The wall surface of the chamber 10 is provided with a mounting groove (not shown) into which the outer edge of the arc member 31 is inserted at a position corresponding to the arc member 31. The arc member 31 has a first surface facing the first brush bar 221 and a second surface facing the second brush bar 231, the first blade 32 is at least partially located on an inner edge of the first surface of the arc member 31 and extends along the circumferential direction of the roller shaft 21, and the second blade 33 is at least partially located on an inner edge of the second surface of the arc member 31 and extends along the circumferential direction of the roller shaft 21. The first surface of the arc member 31 is gradually recessed from the outside toward the inside toward the second brush bar 231 along the radial direction of the roller 21 to form a first recessed area 311, at least a part of the periphery of the first recessed area 311 is the first blade 32, and the second surface of the arc member 31 is gradually recessed from the outside toward the inside toward the first brush bar 221 along the radial direction of the roller 21 to form a second recessed area 312, at least a part of the periphery of the second recessed area 312 is the second blade 33. Specifically, the inner wall surface of the first recessed area 311 is gradually inclined from the outside toward the inside in the radial direction of the roller shaft 21 toward the second brush bar 231, and the peripheral edge of the first recessed area 311 forms the first blade 32 except for the outer edge thereof, the inner wall surface of the second recessed area 312 is gradually inclined from the outside toward the inside in the radial direction of the roller shaft 21 toward the first brush bar 221, and the peripheral edge of the second recessed area 312 forms the second blade 33 except for the outer edge thereof. In addition, the sidewall of the first recess region 311 adjacent to the recess region is parallel to the sidewall of the second recess region 312 adjacent to the first recess region 311.

The above-mentioned brush head module is applied to a floor sweeping machine, which further includes an organic body 4 and a separation module for separating at least dust and air, a first side (front side) of front and rear sides of the brush head module is rotatably coupled to the organic body 4 by a mounting shaft 14 (not shown) extending in a left-right direction, and a second side (rear side) of front and rear sides of the brush head module is arranged to be movable up and down with respect to the organic body 4 to be restrained to the organic body 4. In order to limit the up-and-down movement of the rear side of the brush head module relative to the machine body 4, the machine body 4 is provided with a limiting member 41 positioned above the bottom wall plate of the machine body 4, and the rear side of the brush head module is provided with a rearwardly extending plate 15 which is partially positioned between the limiting member 41 and the bottom wall plate of the machine body 4 and moves up-and-down therebetween. In addition, the air outlet 102 of the brush head module is communicated with the air inlet of the separation module through the flexible pipe 5 which can deform. The existence of the soft pipe 5 ensures the air exhaust effect when the brush head module floats up and down.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "left", "right", "side", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Since the disclosed embodiments of the utility model may be arranged in different orientations.

Example 2:

as shown in fig. 8 to 10, the 2 nd preferred embodiment of the present utility model.

This embodiment differs from embodiment 1 described above in that: 1. the cutting blade 3 is provided with only one first blade 32 and is further provided with a cutting tooth 34 located in the receiving groove 211, the second blade 33 being located between the cutting tooth 34 and the first blade 32. The number of the cutting teeth 34 in the present embodiment is plural, and is arranged in order along the circumferential direction of the roller shaft 21. 2. The first brush bar and the second brush bar have no convex parts 200 thereon. The mounting shaft 14 is formed on the housing 1. The arc member 31 in this embodiment is rod-shaped, both ends of the arc member 31 are provided with insertion rods 313 extending rearward, the wall surface of the chamber 10 is provided with mounting plates 16 at positions corresponding to the arc member 31, and the mounting plates are provided with slots (not shown) into which the arc member 31 and the insertion rods 313 are inserted.

Claims

1. A brush head module for a cleaning machine, for advancing the cleaning machine, comprising:

a housing (1) having a chamber (10) extending in the left-right direction, a dirt suction port (101) communicating with the chamber (10) and opening downward at the bottom, and an air outlet (102) communicating with the chamber (10) at the housing (1);

the rolling brush (2) is used for brushing the surface to be cleaned and comprises a roll shaft (21) which is rotatably arranged in the cavity (10), and a first brush strip (221) and a second brush strip (231) which are spirally arranged are sequentially arranged on the peripheral wall of the roll shaft (21) along the axial direction of the roll shaft (21) and have opposite rotation directions;

the brush is characterized in that a gap (24) is reserved between the first brush bar (221) and the second brush bar (231), the roller shaft (21) is provided with a containing groove (211) for containing hair on the peripheral wall corresponding to the gap (24), and the containing groove (211) extends along the circumferential direction of the roller shaft (21); the brush head module also comprises:

a cutting blade (3) for cutting hair, which is relatively fixed in the chamber (10), has a cutting portion in the accommodation groove (211).

2. The brush head module of claim 1, wherein: the cutting part comprises a first blade (32) and a second blade (33) which are sequentially arranged along the circumferential direction of the roller shaft (21), and the first blade (32) and the second blade (33) face to the first brush bar (221) and the second brush bar (231) respectively.

3. The brush head module of claim 2, wherein: the cutting knife (3) comprises an arc-shaped piece (31) extending along the circumferential direction of the roller shaft (21), the arc-shaped piece (31) is provided with a first surface facing a first brush bar (221) and a second surface facing a second brush bar (231), the first cutting edge (32) is at least partially positioned on the inner edge of the first surface of the arc-shaped piece (31) and extends along the circumferential direction of the roller shaft (21), and the second cutting edge (33) is at least partially positioned on the inner edge of the second surface of the arc-shaped piece (31) and extends along the circumferential direction of the roller shaft (21).

4. A brush head module according to claim 3, wherein: the position of the first surface of the arc-shaped piece (31) adjacent to the inner edge of the arc-shaped piece is gradually recessed from the outer side to the inner side along the radial direction of the roller shaft (21) towards the direction of the second brush bar (231) to form a first recessed area (311), at least part of the peripheral edge of the first recessed area (311) is the first cutting edge (32), the position of the second surface of the arc-shaped piece (31) adjacent to the inner edge is gradually recessed from the outer side to the inner side along the radial direction of the roller shaft (21) towards the first brush bar (221) to form a second recessed area (312), and at least part of the peripheral edge of the second recessed area (312) is the second cutting edge (33).

5. The brush head module of claim 4, wherein: the inner wall surface of the first concave region (311) is gradually inclined towards the second brush bar (231) from outside to inside along the radial direction of the roller shaft (21), the first cutting edge (32) is formed on the periphery of the first concave region (311) except the outer edge, the inner wall surface of the second concave region (312) is gradually inclined towards the first brush bar (221) from outside to inside along the radial direction of the roller shaft (21), and the second cutting edge (33) is formed on the periphery of the second concave region (312) except the outer edge.

6. The brush head module of claim 5, wherein: the side wall of the first concave region (311) adjacent to the concave region is parallel to the side wall of the second concave region (312) adjacent to the first concave region (311).

7. A brush head module according to claim 3, wherein: the arc-shaped piece (31) is C-shaped.

8. The brush head module of claim 2, wherein: the number of the first blades (32) is two, the first blades are arranged at intervals along the circumferential direction of the roll shaft (21), and the second blades (33) are positioned between the two first blades (32).

9. The brush head module of claim 2, wherein: the cutting knife (3) is further provided with a cutting tooth part (34) positioned in the accommodating groove (211), and the second cutting edge (33) is positioned between the cutting tooth part (34) and the first cutting edge (32).

10. The brush head module of claim 9, wherein: the number of the cutting teeth (34) is plural, and the cutting teeth are sequentially arranged along the circumferential direction of the roller shaft (21).

11. The brush head module of claim 1, wherein: the inner wall plate of the accommodating groove (211) is a metal piece.

12. The brush head module of claim 1, wherein: the surfaces of the first brush bar (221) and the second brush bar (231) facing the gap (24) are provided with convex parts (200) extending towards the gap (24) at positions adjacent to the outer edge of the surfaces.

13. The brush head module of claim 12, wherein: the plurality of protruding parts (200) on the first brush bar (221) are arranged at intervals along the length direction of the first brush bar (221), and the plurality of protruding parts (200) on the second brush bar (231) are also arranged at intervals along the length direction of the second brush bar (231).

14. The brush head module of claim 12, wherein: the first brush strips (221) and the second brush strips (231) are arranged at intervals along the circumferential direction of the roller shaft (21).

15. The brush head module of claim 14, wherein: the roller shaft (21) is sleeved with a first shaft sleeve (22) and a second shaft sleeve (23) which are arranged at intervals along the length direction of the roller shaft (21), the first brush bar (221) is formed on the first shaft sleeve (22), and the second brush bar (231) is formed on the second shaft sleeve (23).

16. The brush head module of claim 1, wherein: the accommodating groove (211) is arranged opposite to the air outlet (102).

17. The brush head module of claim 16, wherein: the accommodating groove (211) is arranged corresponding to the middle area of the air outlet (102).

18. The brush head module of claim 17, wherein: the air outlet (102) is positioned at the rear part of the shell (1) and behind the rolling brush (2), and the cutting knife (3) is positioned on the top edge of the air outlet (102).

19. The brush head module of claim 18, wherein: the air outlet (102) is arranged in a left or right region offset from the centre of the chamber (10).

20. A cleaning machine having a brush head module according to any one of claims 1 to 19, further comprising a machine body (4), a first one of the front and rear sides of the brush head module being rotatably connected to the machine body (4) by a mounting shaft (14) extending in the left-right direction, and a second one of the front and rear sides of the brush head module being arranged to be movable up and down relative to the machine body (4) so as to be restrained to the machine body (4).

21. A cleaning machine as defined in claim 20, wherein: the machine body (4) is provided with a limiting piece (41) positioned on the bottom wall plate of the machine body (4), and a part of the second side of the brush head module is positioned between the limiting piece (41) and the bottom wall plate of the machine body (4) and moves up and down between the limiting piece and the bottom wall plate.

22. A cleaning machine as defined in claim 20, wherein: the machine body (4) is provided with a separation module for separating dust and air at least, and an air outlet (102) of the brush head module is communicated with an air inlet of the separation module through a flexible pipe (5) capable of deforming.

23. A cleaning machine as defined in claim 20, wherein: the mounting shaft (14) is located on the front side of the brush head module.

24. A cleaning machine as defined in claim 20, wherein: the cleaning machine is a sweeper or a floor washer.