CN114680720A - A brush head module for cleaning machine and cleaning machine - Google Patents

Abstract

The invention relates to a brush head module for a cleaning machine and a cleaning machine. A brush head module for a cleaning machine includes a casing, an air guide channel inside, and the air guide channel has a dust suction port and an air outlet; a brush head , rotatably arranged in the air guide channel, including a connecting plate and at least two rows of brush column groups arranged on the connecting plate, and there is a gap between the adjacent two rows of brush column groups; it is characterized in that: it also includes a knife The frame is arranged on the connecting plate, located in the gap, and rotates with the brush head. The blade is arranged on the tool holder; the linkage mechanism, the power input end is connected with the connecting plate in a driving manner, and the power output end is drivingly connected with the tool holder , thereby driving the blade on the tool holder to swing back and forth in the gap. During the rotating process, the knife holder can swing back and forth in the gap in the horizontal direction relative to the brush head to cut the hair, so as to automatically cut the hair on the brush head, prevent the hair from being entangled on the brush head, and clean the hair. be sucked into the air duct.

Description

A brush head module for cleaning machine and cleaning machine

technical field

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

Background technique

The current sweeping cleaning machines with sweeping function include vacuum cleaners and sweeping robots, which mainly use a brushing method, and use a fan to suck the ground debris into the storage box inside thereof, thereby completing the function of ground cleaning.

For example, the Chinese utility model patent "Portable Vacuum Cleaner", whose patent number is ZL201320814722.1 (authorized announcement number CN203597888U), discloses a portable vacuum cleaner including a casing, the top of the outer wall of the casing is provided with a handle, and the casing is provided with a small motor and a driving gear. And several driven gears, the driving gear is connected with the small motor, the driven gear is meshed with the driving gear, the output shaft of the driving gear is connected with a dust suction fan, and the output shaft of each driven gear is connected with a brush. The brush structure of the vacuum cleaner in the above-mentioned patent realizes the cleaning of the ground during the rotation process, but during the cleaning process, the hair is easily entangled on the bristles. The cleaning difficulty of the brush.

At present, the hair on the ground is cleaned, such as the Chinese utility model "A kind of hair cleaning brush", whose patent number is ZL201620186914.6 (authorized announcement number is CN205410228U) discloses a hair cleaning brush, including a brush rod. The front end of the rod is provided with bristles, a connecting rod is provided in the brush rod, the front end of the connecting rod is provided with a depilatory grid, and the depilatory grid is provided with a grid for the bristles to pass through; A power source drives the connecting rod to move along the axis of the brush rod, thereby driving the depilatory grid to move along the bristles. Although this patent realizes the cleaning of the hair on the ground, the cleaning of dust and hair cannot be realized at the same time.

Therefore, there is a need for further improvements to existing brush head modules.

SUMMARY OF THE INVENTION

The first technical problem to be solved by the present invention is to provide a brush head module for a cleaning machine that cleans tangled hairs while vacuuming, aiming at the current state of the prior art.

The second technical problem to be solved by the present invention is to provide a brush head module for combing off the hair on the brush head.

The third technical problem to be solved by the present invention is to provide a brush head module that accelerates the airflow velocity at the dust suction port to improve the cleaning ability.

The fourth technical problem to be solved by the present invention is to provide a cleaning machine with the function of cutting hair.

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

The housing has an air guide channel inside, and the air guide channel has a dust suction port and an air outlet in fluid communication with the dust suction port, and along the airflow path, the air outlet is located downstream of the dust suction port;

The brush head is used for cleaning the object to be cleaned, and is rotatably arranged in the air guide channel, including a connecting plate and at least two rows of brush column groups arranged on the connecting plate, and two adjacent rows of the brushes A gap is left between the column groups; it is characterized in that: it also includes a

a knife holder, which is arranged on the connecting plate, is located in the gap, and rotates together with the brush head, and the knife holder is provided with a blade;

In the linkage mechanism, its power input end is drivingly connected with the connecting plate, and its power output end is drivingly connected with the tool rest, thereby driving the blades on the tool rest to swing back and forth in the gap. In this way, the hair embedded in the gap is cut.

Preferably, when the opening of the dust suction port is in a downward state, the rotation axis of the brush head extends along the up-down direction, the blade holder is arranged substantially horizontally, and the blade is driven back and forth horizontally by the linkage mechanism. is movably disposed within the gap.

There are many structural forms of the linkage mechanism, which can be in the form of a spring and a tool holder, or a guide groove and an extension rod. There are two extension rods extending along the rotation axis of the brush head, and the extension rods are arranged at intervals along the length direction of the blade holder and are substantially perpendicular to the blade holder. The extension rod corresponds to a guide groove extending along the length direction of the tool holder, the extension rod partially passes through the corresponding guide groove and is slidably limited in the guide groove.

In order to improve the stability of the movement of the tool holder, the outer peripheral wall of the extension rod is laterally protruded with first and second protrusions spaced along its length direction, and the extension rod is located between the first protrusion and the second protrusion. The part between the second protrusions is always located in the guide groove.

Preferably, each row of brush column groups includes a plurality of brush columns extending along the rotation axis of the brush head and arranged at intervals, and the brush columns are arranged on the connecting plate.

The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: further comprising a transmission assembly for driving the tool holder to move back and forth relative to the connecting plate along the rotation axis of the brush head, and the transmission assembly is The power input end is drivingly connected with the brush head, and the power output end of the transmission assembly is drivingly connected with the tool holder. The power input end of the transmission assembly can also be a wind power transmission.

There are various structural forms of the transmission assembly, but preferably, the transmission assembly includes a

a fixing plate, connected to the outer wall of the casing, and provided with at least two sliders located on the periphery of the rotating shaft of the brush head and arranged at intervals in the circumferential direction, when the opening of the dust suction port is in a downward state , the fixing plate is located on the casing, and the sliding member is arranged on the lower surface of the fixing plate;

A connecting rod, the first end of which is located in the air guide channel, and is connected to the tool holder after passing through the connecting plate, and only moves back and forth relative to the connecting plate along the rotation axis of the brush head, The second end of the connecting rod is located between the housing and the fixing plate, and the end surface of the second end is formed with a slideway which is slidably matched with the slider, and the slideway has the same number of slides and the same number of the slides. A protrusion extending toward the fixing plate, when the tool holder is in a position adjacent to the fixing plate, the sliding member is located between two corresponding adjacent protrusions, and when the tool holder is away from the In the position state of the fixed plate, the sliding piece abuts against the corresponding protrusion.

Preferably, the second end of the connecting rod is sleeved with an annular body located between the outer casing and the fixing plate, the sliding channel is formed between the connecting rod and the annular body, and the sliding member In order to rotate the roller arranged on the fixing plate, the outer peripheral wall of the connecting rod extends outward to form the projection, and the other end of the projection is connected to the inner peripheral wall of the annular body.

In order to completely cut the hair wrapped around the brush column, the blade is partially exposed at the free end of the brush column when the blade holder is at a position farthest from the fixing plate.

In order to make the connecting rod automatically return to the initial position, an elastic member which acts on the connecting rod and always makes the connecting rod have a tendency to move toward the fixed plate is also included.

The driving force for the rotation of the brush head may be the wind force or the form of active driving, but from the perspective of the reliability of the rotation of the brush head, preferably, a driving mechanism for driving the rotation of the brush head is also included. The power output end of the mechanism is drivingly connected with the brush head.

Specifically, an opening for the second end of the connecting rod to pass downwards is formed at a position adjacent to the center of the connecting plate, and an extension pipe is formed on the periphery of the opening toward the fixing plate, so The other end of the extension tube is connected with the drive mechanism, and the link slides along the extension tube and is partially located in the extension tube.

Preferably, there are a plurality of the air guide channels, and they are arranged side by side at intervals, and the driving mechanism includes a

a motor, which is arranged on the casing and is located outside the air guide channel, and has an output shaft arranged side by side with the rotating shaft of the brush head;

a driving gear, mounted on the output shaft of the motor;

A driven gear is arranged corresponding to the brush head, mounted on the corresponding extension pipe, and located between the slideway and the housing, one of the driven gears is engaged with the driving gear, and two adjacent ones are in mesh with the driving gear. The driven gears of the brush heads are meshed with each other.

The technical solution adopted by the present invention to solve the above-mentioned third technical problem is as follows: the brush head is located at a position adjacent to the center of the air guide channel, and a side wall of the air guide channel is provided with a tangential entry for wind. The air inlet is communicated with the dust suction port.

In order to accelerate the flow of the mixed airflow, the casing is provided with a liquid guide channel for communicating with the liquid supply assembly of the cleaning machine, the liquid guide channel has a liquid outlet, and along the fluid flow path, the liquid outlet is located at the downstream of the air inlet.

The technical solution adopted by the present invention to solve the above-mentioned fourth technical problem is: a cleaning machine with the above-mentioned brush head module, which is characterized in that: it also includes a fan and a separation module for separating water and dust mixture, along the The air flow path, the separation module is located between the brush head module and the fan, the inlet of the separation module is in fluid communication with the air outlet of the brush head module, and the outlet of the separation module is in fluid communication with the air outlet of the fan. The import is connected.

Preferably, the cleaning machine is a vacuum cleaner or a sweeping robot.

Compared with the prior art, the present invention has the advantages that the brush head module for cleaning machine can vacuum the object to be cleaned, and the blade holder of the brush head module rotates together with the brush head, and the blade holder rotates during the rotation process. It can swing back and forth in the gap in the horizontal direction relative to the brush head to cut the hair, so as to automatically cut the hair on the brush head, prevent the hair from entangling on the brush head, and the cleaned hair can be sucked into the air guide channel On the one hand, it realizes the automatic cleaning of the hair on the brush head without manual cleaning, which is convenient for cleaning; on the other hand, the cleaned hair can be sucked away in time to keep the object to be cleaned clean.

Description of drawings

FIG. 1 is a schematic structural diagram of the brush head module of the present embodiment;

Fig. 2 is the structural representation of another angle of Fig. 1;

Fig. 3 is the sectional view of Fig. 1;

Fig. 4 is the sectional view of another angle of Fig. 1;

Fig. 5 is the structural representation of another angle of 2;

Fig. 6 is the partial structure schematic diagram of Fig. 1;

Fig. 7 is the sectional view of Fig. 6;

Figure 8 is a schematic structural diagram of a connecting rod;

FIG. 9 is a schematic structural diagram of the vacuum cleaner of this embodiment.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

As shown in FIG. 9 , the cleaning machine in the embodiment of the present invention is a vacuum cleaner, and the object to be cleaned is the ground. The vacuum cleaner includes a brush head module 01, a fan 4 and a separation module for separating the mixture of water and dust. Along the air flow path, the separation module is located between the brush head module 01 and the fan 4, and the inlet of the separation module is connected to the brush head module. The air outlet 113 of 01 is in fluid communication, and the outlet of the separation module is in communication with the inlet of the fan 4 . Under the action of the fan 4, a negative pressure will be formed in the brush head module and the separation module, so that dust, water and other garbage are sucked into the brush head module through the dust suction port 111, and then separated by the separation module and discharged. Any structure in the prior art is adopted, and detailed descriptions will not be repeated in this embodiment.

As shown in FIG. 9 , the brush head module 01 for a cleaning machine includes a brush head assembly 012 and a cover 011. The brush head assembly 012 includes a casing 1, a brush head 13, a knife holder 18, an elastic member, a linkage mechanism and a transmission Component 17. The casing 011 is provided with an opening at a position corresponding to the dust suction port 111, the brush head assembly 012 is partially located in the casing 011, and the brush head 13 of the brush head assembly 012 is partially exposed under the opening. As shown in FIG. 1 to FIG. 8 , the interior of the housing 1 has an air guide channel 11 , and the air guide channel 11 has a dust suction port 111 and an air outlet 113 with an opening facing downward. Along the fluid flow path, the air outlet 113 is located at the dust suction port Downstream of 111. As shown in FIG. 3 , the brush head 13 is located near the center of the air guide channel 11 , and a space 135 is left between the outer peripheral edge of the brush head 13 and the inner peripheral wall of the air guide channel 11 . The side wall of the air guide channel 11 is tangentially provided with an air inlet 112 for supplying air tangentially entering, and the air inlet 112 is communicated with the dust suction port 111. The above-mentioned air guide channels 11 have at least two. In this embodiment, there are four air guide channels 11 and they are arranged side by side. The air inlets 112 of each air guide channel 11 are located on the same side of the housing 1.

In order to speed up the fluid flow into the air inlet, the air inlet 112 is connected with an air inlet channel 114, the air inlet channel 114 is located at the front side of the air guide channel 11, and the air inlet channel 114 gradually shrinks along the air flow path. As shown in FIG. 1 , the air inlet channel 114 includes a first connecting wall 118 extending back and forth and a second connecting wall 119 extending from the back to the front gradually away from the first connecting wall 118 . The two air guide channels are located in the middle. The air inlets 112 of 11 are arranged adjacent to each other, and the two share the same first connecting wall 118; The ends are connected to form a V-shaped guide wall, as shown in FIG. 1 .

As shown in FIG. 1 , the casing 1 is provided with a liquid guiding channel 12 for communicating with the liquid supply assembly of the cleaning machine, and there is a liquid guiding channel 12 between two adjacent air guiding channels 11 , and the liquid guiding channel 12 has an opening The downward-facing liquid outlet 121 is located downstream of the adjacent air inlet 112 along the fluid flow path.

The above-mentioned brush head 13 is used to clean the object to be cleaned. As shown in FIG. 2 , the brush head 13 is rotatably arranged in the air guide channel 11 through the rotating shaft, and the axis of the rotating shaft of the brush head 13 is the brush head 13 In this embodiment, as shown in FIG. 3 , the rotation axis of the brush head 13 extends along the up-down direction, and the brush head 13 includes a substantially horizontally arranged connecting plate 131 and at least a As shown in Figures 2 and 3, there is a gap 1300 between two adjacent rows of brush column groups. Each row of brush column groups includes a plurality of brush columns 1321 extending up and down and arranged at intervals. The post 1321 is provided on the lower surface of the connection plate 131 . As shown in FIG. 3 , FIG. 4 and FIG. 6 , the tool holder 18 is arranged on the connecting plate 131 , and is located under the connecting plate 131 and rotates together with the connecting plate 131 , and the tool holder 18 is provided with a blade 181 extending up and down. ; The tool holder in this embodiment is in the shape of a strip, and there are a plurality of blades 181 and are arranged at intervals along the length direction of the tool holder 18 .

As shown in FIG. 2 , in order to realize the up and down movement of the tool holder 18 relative to the connecting plate 131 , the tool holder 18 can move up and down relative to the connecting plate 131 under the drive of the transmission assembly 17 . The power input end of the aforementioned transmission assembly 17 is connected to the brush head 13 . Transmission connection, and the power output end of the transmission assembly 17 is drivingly connected with the tool holder 18 . As shown in FIG. 3 , FIG. 4 and FIG. 7 , the transmission assembly 17 includes a fixing plate 171 and a connecting rod 172 . The fixing plate 171 is connected to the outer wall of the casing 1 and is located on the casing 1 , and the lower surface of the fixing plate 171 is on the lower surface of the casing 1 . Two sliders are arranged on the periphery of the rotating shaft of the brush head 13 and are arranged at intervals in the circumferential direction. The sliders are rollers 1711 rotatably arranged on the fixed plate 171. The lower end (first end) of the rod 172 is located in the air guide channel 11 and is connected to the tool holder 18 after passing through the connecting plate 131. The upper end (second end) of the connecting rod 172 is located between the housing 1 and the fixing plate 171, and The upper end surface of the connecting rod 172 is formed with a slideway 170 which is slidably matched with the rollers 1711. The slideway 170 has protrusions 1721 which are the same in number as the rollers 1711 and extend upward. The upper end of the rod 172 is sleeved with an annular body 173 located between the casing 1 and the fixing plate 171 , the above-mentioned slideway 170 is formed between the connecting rod 172 and the annular body 173 , and the outer peripheral wall of the connecting rod 172 extends outward to form There is the above-mentioned protrusion 1721 , and the other end of the protrusion 1721 is connected to the inner peripheral wall of the annular body 173 . When the tool rest 18 is in the lowest position, the rollers 1711 are in contact with the corresponding protrusions 1721 , as shown in FIG. 7 , when the tool rest 18 is in the highest position, the rollers 1711 are located between the corresponding two adjacent protrusions 1721 in the recessed area.

As shown in FIG. 3 and FIG. 4 , a position near the center of the connecting plate 131 is provided with an opening for the upper end of the connecting rod 172 to pass downward, and an extension tube 1311 is formed on the periphery of the opening, and the upper end of the extension tube 1311 extends upward. Connected with the driving mechanism 14 , the connecting rod 172 slides up and down and is partially located in the extension tube 1311 . As shown in FIG. 3 , the elastic member acts on the connecting rod 172 and always causes the connecting rod 172 to move upward. Specifically, the elastic member is the spring 19 sleeved on the periphery of the connecting rod 172 and located in the sleeve 1311 The inner peripheral wall of the opening extends inward to form a step, the lower end of the spring 19 can abut the step, and the upper end of the spring 19 can abut the part of the connecting rod 172, so that the spring 19 is in an energy storage state.

As shown in FIG. 5 , the brush head 13 rotates around its own rotation axis when the driving mechanism 14 is driven, and the power output end of the driving mechanism 14 is drivingly connected to the brush head 13 . The aforementioned driving mechanism 14 includes a motor 141 , a driving gear 142 and a driven gear 143 , and each brush head 13 corresponds to a driven gear 143 , wherein the motor 141 is arranged on the casing 1 and is located outside the air guide channel 11 . , the motor 141 has a vertically extending output shaft; the driving gear 142 is installed on the output shaft of the motor 141; the driven gear 143 is installed on the extension tube 1311 corresponding to the brush head 13, and is located between the annular body 173 and the housing 1, One of the driven gears 143 meshes with the driving gear 142 , and the driven gears 143 of the two adjacent brush heads 13 mesh with each other, so that under the driving of the motor 141 and the transmission meshing of the driving gear 142 and the driven gear 143 The rotation of each brush head 13 is realized. During the rotation of the brush head 13 , the connecting rod 172 rotates together with the brush head 13 , and the blade holder 18 moves up and down under the action of the roller 1711 , the convex portion 1721 and the slideway 170 .

The tool rest 18 can move back and forth in the horizontal direction relative to the connecting plate under the action of the linkage mechanism, and the linkage mechanism is connected with the connecting plate 131 and the tool rest 18 at the same time, so that the tool rest 18 swings back and forth in the gap 1300 basically along the horizontal direction. to cut hair. As shown in FIG. 4 and FIG. 7 , the linkage mechanism includes extension rods 1315 arranged on the connecting plate 131 and extending downward. There are two extension rods 1315 and are arranged at intervals along the length direction of the tool holder 18. The tool holder 18 There is a guide groove 182 extending along the length direction of the tool holder 18, and each extension rod 1315 corresponds to a guide groove 182. Two convex parts 1317, the first convex part 1316 is located on the second convex part 1317, the part of the extension rod 1315 located between the first convex part 1316 and the second convex part 1317 is always located in the guide groove 182, and can follow the The length direction of the guide groove 182 can be slid back and forth laterally and is limited in the guide groove 182 . In this way, during the rotation of the brush head 13, since the extension rod 1315 moves back and forth laterally in the guide groove 182, the hair embedded in the gap 1300 during the cleaning work is cut.

The "fluid communication" referred to in the present invention refers to the spatial positional relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the energy of a fluid (gas, liquid or a mixture of the two) From the first part to flow along the flow path or/and to 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 pass through At least one third party is in indirect communication, which may be a fluid channel such as a pipe, channel, conduit, flow guide, hole, slot, etc., or a chamber that allows fluid to flow therethrough, or a combination thereof. Vertical in the above description and claims includes, but is not limited to, vertical.

In the description and claims of the present invention, directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "Bottom," etc., are used to describe various example structural parts and elements of the invention, but these terms are used herein for convenience of description and based on the example orientations shown in the accompanying drawings. Since the disclosed embodiments of the present invention may be arranged in different directions, these directional terms are for illustration only and should not be regarded as limiting, such as "up" and "down" are not necessarily defined as being opposite to the direction of gravity or consistent direction.

Claims (17)

1. A brush head module for a cleaning machine comprises

The air cleaner comprises a shell (1), wherein an air guide channel (11) is arranged in the shell, the air guide channel (11) is provided with a dust suction port (111) and an air outlet (113) which is communicated with the dust suction port (111) in a fluid mode, and the air outlet (113) is located at the downstream of the dust suction port (111) along an airflow flow path;

the brush head (13) is used for sweeping an object to be cleaned, can be rotatably arranged in the air guide channel (11), and comprises a connecting plate (131) and at least two rows of brush column groups arranged on the connecting plate (131), wherein a gap (1300) is reserved between every two adjacent rows of brush column groups; the method is characterized in that: also comprises

The knife rest (18) is arranged on the connecting plate (131), is positioned in the gap (1300), and rotates along with the brush head (13), and a blade (181) is arranged on the knife rest (18);

and the power input end of the linkage mechanism is in transmission connection with the connecting plate (131), and the power output end of the linkage mechanism is in driving connection with the tool rest (18), so that a blade (181) on the tool rest (18) is driven to swing back and forth in the gap (1300).

2. The brush head structure of claim 1, wherein: when the opening of the dust suction opening (111) is in a downward state, the rotation axis of the brush head (13) extends along the up-and-down direction, the knife rest (18) is basically horizontally arranged, and the blade (181) is driven by the linkage mechanism to be basically horizontally arranged in the gap (1300) in a reciprocating manner.

3. The brush head structure of claim 2, wherein: the link gear is including setting up on connecting plate (131) and along extension rod (1315) that the axis of rotation of brush head (13) extends, extension rod (1315) have two, and along the length direction interval arrangement of knife rest (18), and with knife rest (18) is basically perpendicular, have on knife rest (18) with extension rod (1315) correspond and along the guide way (182) of the length direction extension of knife rest (18), extension rod (1315) are local to be passed corresponding guide way (182) and slide spacing in this guide way (182).

4. The brush head structure of claim 3, wherein: the peripheral wall of the extension rod (1315) is laterally provided with a first convex part (1316) and a second convex part (1317) which are arranged at intervals along the length direction of the extension rod, and the part of the extension rod (1315) between the first convex part (1316) and the second convex part (1317) is always positioned in the guide groove (182).

5. The brush head structure of claim 1, wherein: each row of brush column groups comprises a plurality of brush columns (1321) which extend along the rotating axis of the brush head (13) and are arranged at intervals, and the brush columns (1321) are arranged on the connecting plate (131).

6. The brush head structure of any one of claims 1 to 5, wherein: the toothbrush further comprises a transmission assembly (17) used for driving the tool rest (18) to move back and forth relative to the connecting plate (131) along the rotating axis of the toothbrush head (13), the power input end of the transmission assembly (17) is in transmission connection with the toothbrush head (13), and the power output end of the transmission assembly (17) is in driving connection with the tool rest (18).

7. The brush head structure of claim 6, wherein: the transmission component (17) comprises

A fixed plate (171) connected to an outer wall of the housing (1), and provided with at least two sliding members located at a periphery of a rotation shaft of the brush head (13) and arranged at intervals in a circumferential direction, wherein the fixed plate (171) is located above the housing (1) in a state that an opening of the dust suction port (111) is directed downward, and the sliding members are provided on a lower surface of the fixed plate (171);

a connecting rod (172), the first end of which is positioned in the air guide channel (11) and is connected with the knife rest (18) after passing through the connecting plate (131), and only moves back and forth along the rotating shaft of the brush head (13) relative to the connecting plate (131), the second end of the connecting rod (172) is positioned between the shell (1) and the fixed plate (171), and the end surface of the second end is provided with a slideway (170) which is matched with the sliding piece in a sliding way, the slide way (170) is internally provided with protrusions (1721) which are consistent with the number of the sliding pieces and extend towards the direction of the fixing plate (171), in the state that the tool rest (18) is positioned adjacent to the fixing plate (171), the sliding piece is positioned between two corresponding adjacent protrusions (1721), in the position of the tool holder (18) remote from the fastening plate (171), the sliding element abuts against the corresponding projection (1721).

8. The brush head structure of claim 7, wherein: the second pot head of connecting rod (172) is equipped with and is located annular body (173) between shell (1) and fixed plate (171), be provided with between connecting rod (172) and annular body (173) and be formed with slide (170), the slider sets up for rotating gyro wheel (1711) on fixed plate (171), the periphery wall of connecting rod (172) outwards extends and is formed with arch (1721), the other end of arch (1721) with the internal perisporium of annular body (173) links to each other.

9. The brush head structure of claim 8, wherein: when the tool rest (18) is located farthest from the fixing plate (171), the blade (181) is partially exposed to the free end of the brush column (1321).

10. The brushhead module of claim 7, wherein: the device also comprises an elastic element which acts on the connecting rod (172) and always enables the connecting rod (172) to have the tendency of moving towards the direction of the fixed plate (171).

11. The brushhead module of claim 7, wherein: the toothbrush further comprises a driving mechanism (14) used for driving the toothbrush head (13) to rotate, and a power output end of the driving mechanism (14) is in driving connection with the toothbrush head (13).

12. The brushhead module of claim 11, wherein: an opening through which the second end of the connecting rod (172) passes is formed in the position, close to the center, of the connecting plate (131), an extension pipe (1311) extends along the periphery of the opening towards the direction of the fixing plate (171), the other end of the extension pipe (1311) is connected with the driving mechanism (14), and the connecting rod (172) slides along the extension pipe (1311) and is partially located in the extension pipe (1311).

13. The brushhead module of claim 12, wherein: the air guide channels (11) are arranged side by side at intervals, and the driving mechanism (14) comprises

A motor (141) which is arranged on the shell (1), is positioned outside the air guide channel (11) and is provided with an output shaft which is arranged in parallel with the rotating shaft of the brush head (13);

a drive gear (142) mounted on an output shaft of the motor (141);

the driven gears (143) are arranged corresponding to the brush heads (13), are arranged on the corresponding extension pipes (1311) and are positioned between the slide ways (170) and the shell (1), one driven gear (143) is meshed with the driving gear (142), and the driven gears (143) of two adjacent brush heads (13) are meshed.

14. The brushhead module of claim 1, wherein: the brush head (13) is located at a position, close to the center, of the air guide channel (11), an air inlet (112) used for air to enter tangentially is formed in the side wall of the air guide channel (11), and the air inlet (112) is communicated with the dust suction port (111).

15. The brush head module of claim 14, wherein: the shell (1) is provided with a liquid guide channel (12) communicated with a liquid supply assembly of the cleaning machine, the liquid guide channel (12) is provided with a liquid outlet (121), and the liquid outlet (121) is located at the downstream of the air inlet (112) along a fluid flow path.

16. A cleaning machine having a brushhead module of any one of claims 1 to 15, wherein: the brush head module is characterized by further comprising a fan (4) and a separation module for separating a water and dust mixture, wherein the separation module is located between the brush head module (01) and the fan (4) along an airflow flow path, an inlet of the separation module is in fluid communication with an air outlet (113) of the brush head module (01), and an outlet of the separation module is communicated with an inlet of the fan (4).

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

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