CN114652198A - 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 the cleaning machine, wherein the brush head module for the cleaning machine comprises a shell, an air guide channel is formed in the shell, the air guide channel is provided with a dust suction port and an air outlet which is in fluid communication with the dust suction port, and the air outlet is positioned at the downstream of the dust suction port along an airflow flow path; the brush head is used for cleaning an object to be cleaned and can be rotatably arranged at the dust suction port of the air guide channel; it is characterized by also comprising: and the power output end of the lifting mechanism is in driving connection with the brush head and is used for driving the brush head to be close to or far away from the object to be cleaned relative to the dust suction port. The cleaning effect is improved.

Description

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 the cleaning machine.

Background

The current cleaner with the floor mopping function comprises a dust collector and a floor sweeping machine, wherein a brushing mode is mainly adopted, and a fan is used for sucking impurities on the ground into an internal storage box, so that the function of cleaning the ground is achieved.

For example, the chinese utility model patent "brush structure of cleaner", its patent number is ZL201921603224.6 (the publication number is CN210902814U) discloses a brush structure of cleaner includes: the device comprises a connecting pipe, a bristle component, a bristle mounting disc and a corrugated pipe component; the center of one side of the bristle mounting disc is provided with a dust absorption opening, and the center of the other side of the bristle mounting disc is provided with an exhaust port; the bristle assembly is arranged on one side of the bristle mounting disc, which is provided with a dust suction opening; one end of the corrugated pipe assembly is fixedly connected to the air outlet of the bristle mounting disc, and the other end of the corrugated pipe assembly is fixedly connected with the connecting pipe. Only has the dust absorption function and cannot meet the floor mopping requirement of a user.

Therefore, as the invention of the chinese patent application, a sweeping robot, whose patent application number is CN202010009485.6 (application publication number is CN11250333A), discloses a sweeping robot, which includes a sweeping robot body, a sweeping component and a driving component are arranged in the sweeping robot body, a dust collecting box is further arranged in the sweeping robot body, a water tank is arranged below the dust collecting box, a rotatable mopping brush is arranged below the water tank, the mopping brush is connected with a mopping motor, a mop cloth is arranged on the mopping brush, a water squeezing box is arranged at a half edge close to a dust suction port of the mopping brush, the water squeezing box squeezes out sewage on the mopping brush and collects the squeezed sewage, a penetration plate is further arranged below the water tank, and clear water in the water tank penetrates onto the mopping brush by the penetration plate.

Above-mentioned patent sets up alone the subassembly of sweeping the floor and drags the scrubbing brush to realize the function that limit sweeping the floor dragged simultaneously, on the one hand, the subassembly of sweeping the floor is at the in-process of actual rotatory clearance, the condition that is not siphoned away can appear in part rubbish, on the other hand, because the subassembly of sweeping the floor and drags the scrubbing brush separately to set up, in actual clearance in-process, the condition that the scrubbing brush drags the ground to the region of not sweeping can appear, and then lead to inhaling to drag the effect not good, in addition, when there is stubborn spot on the ground, hardly clear up stubborn spot, and there may exist in the middle of the brush head with treat that the clean object contact is bad and leave the problem at clean dead angle.

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

Disclosure of Invention

A first technical problem to be solved by the present invention is to provide a brush head module for a cleaning machine, which increases a contact area between a brush head and an object to be cleaned to improve cleaning ability, in view of the above-mentioned state of the art.

The invention provides a brush head module capable of automatically adjusting the size of an air inlet according to the air inlet amount.

The third technical problem to be solved by the invention is to provide a cleaning machine for both dry and wet purposes.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a brush head module for a cleaning machine comprises

A housing having a wind guide channel formed therein, the wind guide channel having a dust collection opening and a wind outlet in fluid communication with the dust collection opening, the wind outlet being located downstream of the dust collection opening along an airflow path;

the brush head is used for cleaning an object to be cleaned and can be rotatably arranged at the dust suction port of the air guide channel;

it is characterized by also comprising:

and the power output end of the lifting mechanism is in driving connection with the brush head and is used for driving the brush head to be close to or far away from the object to be cleaned relative to the dust suction port.

Elevating system's structural style has the multiple, preferably, the brush head sets up through installing the axle ability with rotating in the wind-guiding passageway, be provided with the mounting on the shell, elevating system is including setting up install the epaxial outer screw thread portion of axle periphery and keeping away from the dust absorption mouth is arranged, set up the internal thread hole with outer screw thread portion threaded connection on the mounting.

In order to increase the cleaning area, at least two air guide channels are arranged side by side at intervals, a first brush head which can rotate around the rotation axis of the air guide channel under the driving of a driving mechanism is arranged in one air guide channel, one brush head is arranged in each of the other air guide channels, the brush head is a second brush head, and the second brush head is connected with the driving mechanism through a linkage assembly.

The driving mechanism has various structural forms, but from the viewpoint of structural simplicity, it is preferable that the driving mechanism is a hollow shaft servomotor, an output shaft of the hollow shaft servomotor is arranged side by side with the mounting shaft, and the first brush head is mounted on the output shaft of the hollow shaft servomotor.

The linkage assembly can be in various structures, and can be in the form of transmission of gears and toothed belts or completely in the form of gears, but preferably, the linkage assembly comprises

The driving gear is arranged at the upper end of the output shaft;

the driven gear is installed on the installation shaft and is positioned below the external thread part; and

and the transmission toothed belt is wound around the peripheries of the driving gear and the driven gear and is always meshed with the driving gear and the driven gear.

Preferably, the first and second brush heads are of identical construction.

In order to realize that the mounting shaft is restored to the original position in the axial direction, the dust collector also comprises an elastic part which acts on the mounting shaft and always leads the mounting shaft to have the trend of moving away from the dust suction port.

The brush head can be constructed in a variety of ways, but preferably the brush head comprises

A connecting plate substantially perpendicular to the axis of rotation of the brush head;

at least two fly leafs, can set up with rotating on the connecting plate, and along circumference interval arrangement, the fly leaf is provided with the first brush post that is used for treating the cleaning object to clean, and under natural state, the fly leaf is along the axis of rotation direction of connecting plate arranges, the free end orientation of first brush post the axis of rotation of connecting plate under the connecting plate is in the pivoted state, the fly leaf can outwards expand extremely the free end orientation of first brush post treats the state of cleaning object. In a non-working natural state, the first brush column is not in contact with the object to be cleaned, so that the contact area with the object to be cleaned is reduced, and the resistance borne by the follow-up cleaning machine in the walking process is reduced; under the working condition, the movable plate is unfolded outwards under the action of centrifugal force rotating at high speed, at the moment, the first brush column is in contact with the ground, and the middle position of the connecting plate can be driven to move downwards under the driving of the lifting mechanism, so that the middle position is in contact with an object to be cleaned, the contact area with the ground is increased, and dead angles of the object to be cleaned are prevented.

In order to brush and sweep the position of an object to be cleaned corresponding to the center of the connecting plate, a second brush column extending along the rotating axis of the brush head is arranged at the center of the bottom of the connecting plate, and the first brush column is positioned at the periphery of the second brush column.

In order to reduce the contact area with the ground and the resistance when the follow-up cleaning machine walks, the movable plate has elasticity and has the tendency of always keeping vertical under the action of the elasticity of the movable plate, the movable plate returns to the original position by utilizing the elasticity of the movable plate under the non-working state.

Preferably, still including with the impeller of brush head coaxial arrangement, the impeller includes rim plate and blade, the periphery of rim plate is along having the rampart, the blade has a plurality ofly and along the interval arrangement of circumference on the outer wall of rampart, in the axis of rotation of brush head is in vertical and the opening of dust absorption mouth is in down the state, the rampart upwards extends, the least significant edge of blade is located below the connecting plate, the most significant edge of blade is located above the connecting plate. Due to the existence of the impeller, when the air guide channel rotates, the blades can enable the flow field in the air guide channel to generate airflow lift force flowing towards the direction of the air outlet of the air guide channel when the air guide channel rotates at a high speed, so that the brushed garbage can be sucked away in time after the brush head is brushed, the dust collection effect is increased, and meanwhile, the movable plate is enabled to be easier to unfold.

Preferably, a plurality of water through holes which are communicated up and down are formed in the wheel disc. Due to the existence of the water through holes, water on the blades can flow out downwards through the water through holes.

In order to facilitate the suction of dust and the like into the air guide channel, the brush head is positioned in the center of the air guide channel, and a gap is reserved between the outer peripheral edge of the brush head and the inner peripheral wall of the air guide channel.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the periphery of the dust collection port is provided with an air inlet, the periphery of the dust collection port is provided with a sealing strip, and the sealing strip is provided with a blocking piece which can at least partially cover the air inlet and can move along the air flow direction to reduce the area covering the air inlet at a position corresponding to the air inlet.

In order to clean stubborn stains, a liquid guide channel is arranged between every two adjacent air guide channels, and the liquid guide channel is provided with a liquid outlet communicated with a dust suction port of the adjacent air guide channel.

In order to realize the simultaneous water discharge of the plurality of diversion channels, the device also comprises a liquid supply assembly and a pressure equalizing cavity, the pressure equalizing cavity is positioned between the liquid guide channels and the liquid supply assembly along the flow direction of water flow, and the pressure equalizing cavity is provided with a liquid discharge port which is respectively communicated with the inlets of the liquid guide channels.

The pressure equalizing cavity has various structural forms, but preferably, the pressure equalizing cavity comprises a main cavity body which is arranged basically horizontally and extends along the length direction of the shell, the main cavity body is provided with a vertical flow channel at a position corresponding to the liquid guide channel, the vertical flow channel is communicated with the liquid guide channel, a valve plate which moves under the driving of water flow and is communicated with the vertical flow channel is arranged in the vertical flow channel, the valve plate has elasticity, and the valve plate always has a tendency of blocking the vertical flow channel under the action of the elasticity of the valve plate. So, in order to be in the non-function of mopping the ground, the valve block is automatic to be closed vertical runner, avoids appearing "siphon" phenomenon, prevents that water conservancy diversion passageway goes out water and wets ground, is in the state of mopping the ground, and the valve block will be automatic opens vertical passageway, and at this moment, rivers distribute to each drain passageway in, and realize mopping the function of ground.

The technical scheme adopted by the invention for solving the third technical problem is as follows: a cleaning machine with the brush head module is characterized in that: the air brush comprises a fan and a separation module for separating a mixture of water and dust, wherein the separation module is positioned between the brush head module and the fan along an airflow flow path, an inlet of the separation module is communicated with an air outlet of an air guide channel of the brush head module, and an air outlet of the separation module is communicated with an inlet of the fan.

Preferably, the cleaning machine is a vacuum cleaner or sweeper.

Compared with the prior art, the invention has the advantages that: this a brush head for brush head module of cleaning machine can be close to or keep away from under elevating system's drive and treat the clean object, so, the degree of intimate contact of brush head with treating the clean object has been increased, area of contact has been increased, the brush effect of sweeping has been improved, it treats the clean object to be close to through the adjustment brush head, make the brush head exert oneself more on treating the clean object, brush the power of sweeping to the clean object has been increased at brush head pivoted in-process, on the one hand, prevent to treat and remain the clearance dead angle on the clean object, on the other hand, can brush the stubborn spot of treating the clean object surface, and clean the effect is better.

Drawings

FIG. 1 is a schematic structural view of a brush head module and a liquid supply assembly installed therein according to an embodiment;

fig. 2 is a partial structural schematic view of the brush head module of the embodiment;

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

FIG. 4 is a cross-sectional view at another angle of FIG. 1;

FIG. 5 is a schematic view of a portion of the structure of FIG. 2;

FIG. 6 is a structural schematic view of the brush head module of the present embodiment;

FIG. 7 is a schematic view of the structure of FIG. 6 at another angle;

FIG. 8 is a schematic view of the movable plate of the toothbrush head of FIG. 6 in an expanded state;

FIG. 9 is a sectional view of a partial structure of the valve plate in FIG. 1 in a state of opening the vertical flow passage;

FIG. 10 is a cross-sectional view of the valve plate in FIG. 9 in a state of blocking the vertical flow channel;

fig. 11 is a sectional view of the cleaning machine of the present embodiment;

FIG. 12 is a schematic view of the structure of the impeller;

FIG. 13 is a schematic view of the natural state of the brush head;

figure 14 is a schematic view of the structure of the brush head in the working state;

fig. 15 is a schematic structural view of the pressure equalizing chamber.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 15, the cleaning machine of the embodiment of the invention is a sweeper, and the object to be cleaned is a floor. The sweeper comprises a brush head module 01, a fan 5 and a separation module 04 for separating a mixture of water and dust, wherein the separation module 04 is positioned between the brush head module 01 and the fan 5 along an airflow flow path, an inlet 400 of a separation module 4 is communicated with an air outlet 113 of an air guide channel 11 of the brush head module 01, and an air outlet 401 of the separation module 04 is communicated with an inlet of the fan 5. Under the action of the fan 5, negative pressure is formed in the brush head module 01 and the separation module 04, so that dust, water and other garbage are sucked into the brush head module 01 through the dust suction port 111 and then are separated by the separation module 04 and then are discharged.

The brush head module for the cleaning machine comprises a shell 1, at least one air guide channel 11, a liquid guide channel 12, a first brush head 10, a brush head 13, a lifting mechanism, a driving mechanism for driving the brush head 13 to rotate around the axis of the driving mechanism, a liquid supply assembly 6, an elastic element and a pressure equalizing cavity 7.

As shown in fig. 1 to 5, the housing 1 is provided with 4 mutually independent air guide channels 11 arranged side by side at intervals, each air guide channel 11 is provided with a dust collection port 111 with a downward opening, and a plane where the dust collection port 111 is located is substantially horizontally arranged; a liquid guide channel 12 is arranged between two adjacent air guide channels 11, the liquid guide channel 12 is used for being communicated with a liquid supply assembly 6 of the cleaning machine, the air guide channels 11 are arranged on the shell 1, the liquid guide channels 12 are provided with liquid outlets 121 with downward openings and capable of being communicated with the dust suction openings 111, the liquid outlets 121 are communicated with the dust suction openings 111 of the adjacent air guide channels 11, and the liquid outlets 121 are downward openings and face the ground.

The driving mechanism is a hollow shaft servo motor 141, an output shaft of the hollow shaft servo motor 141 extends along the vertical direction and is substantially perpendicular to the plane of the dust suction port 111, a first brush head 10 is mounted on the output shaft of the hollow shaft servo motor 141, the first brush head 10 is mounted on the lower end position of the output shaft 1411 of the hollow shaft servo motor 141, which is adjacent to the dust suction port 111, and the first brush head 10 in the embodiment only rotates along with the output shaft 1411. Specifically, a top plate of the air guiding channel 11 is partially recessed downward to form a cavity 103 with an opening facing upward to accommodate the hollow shaft servo motor 141, and a through hole for the output shaft 1411 to pass through is formed in the cavity 103.

The brush heads 13 in the other 3 air guide channels 11 are second brush heads, the second brush heads are rotatably provided in the corresponding air guide channels 11 by the mounting shafts 142, and the mounting shafts 142 extend in the vertical direction. The second brush head is in transmission connection with a hollow shaft servo motor 141 through a linkage assembly 140, so that the second brush head rotates. The linkage assembly 140 includes a driving gear 143, a driven gear 144 and a transmission toothed belt 145, wherein the driving gear 143 is mounted on the upper end of the output shaft 1411 and is located outside the air guiding channel 11; the driven gear 144 is mounted on the mounting shaft 142 and located below the external thread part 1421; the driving toothed belt 145 is wound around the driving gear 143 and the driven gear 144, and is engaged with the driving gear 143 and the driven gear 144.

The second brush head moves up and down under the driving of the lifting mechanism, and the power output end of the lifting mechanism is in driving connection with the brush head 13 (the second brush head), specifically, the lifting mechanism includes an external thread part 1421 disposed on the outer peripheral wall of the mounting shaft 142 and far away from the dust suction port 111, the mounting shaft 142 is rotatably disposed on the housing 1 through a bearing 146, the bearing adopts the structure in the prior art, and details will not be repeated in this embodiment. The housing 1 is provided with a fixing member, the fixing member is provided with an internal threaded hole 612 in threaded connection with the external threaded part 1421, and the second brush head moves up and down relative to the fixing member through the rotational fit of the external threaded part 1421 and the internal threaded hole 612. The fixing element is a water tank 61 of the liquid supply assembly 6, and the water tank 61 is positioned above the hollow shaft servo motor 141. Thus, the second brush heads of this embodiment can both rotate with their respective mounting shafts 142 and move up and down. In the working process of the sweeper, the second brush head moves downwards to the lowest position under the cooperation of the lifting mechanism and the driving mechanism, at the moment, the second brush head is separated from the limiting position of the fixing piece, and the second brush head is completely contacted with the ground. In order to make the mounting shaft have a tendency to move upward, the elastic member acts on the mounting shaft 142 and always makes the mounting shaft 142 have a tendency to move upward, and the elastic member in this embodiment is a spring 147 sleeved on the mounting shaft 142. In the state of cleaning, the hollow shaft servo motor 141 rotates in the reverse direction and the linkage assembly acts to move the second brush head upward to a natural state connected to the fixed member.

As shown in fig. 1 and 8, the air guide channel 11 includes a first channel 100 having a substantially circular cross section, an inlet of the first channel 100 is a dust suction opening 111, an air inlet 112 is formed on a circumferential edge of the dust suction opening 111, a sealing strip 16 is mounted on the circumferential edge of the dust suction opening 111, and a blocking piece 161 capable of at least partially covering the air inlet 112 and moving along an air flow direction to reduce an area covering the air inlet 112 is disposed on the sealing strip 16 at a position corresponding to the air inlet 112, so that the blocking piece 161 moves relative to the air inlet under the action of an air intake amount to achieve the purpose of adjusting the size of the air inlet. In order to support the brush head module, the bottom surface of the housing 1 is provided with a support wheel 117 adjacent to the air inlet 112, and the existence of the support wheel 117 can enable the sealing strip 16 to always keep a fixed gap with the ground. The first channel 100 is provided with an opening 101 at a position adjacent to the top, the top edge of the air inlet 112 is substantially flush with the bottom edge of the opening 101, or the top edge of the air inlet 112 is lower than the bottom edge of the opening 101, and the distance between the top edge of the air inlet 112 and the bottom edge of the opening 101 is 1-2 mm.

As shown in fig. 8, the opening 101 has a second passage 102 extending upward along the circumferential direction, and the second passage 102 is located downstream of the first passage 100 in the airflow direction. As shown in fig. 5 and 8, an impeller 15 is disposed in the first channel 100, the impeller 15 is mounted on an output shaft 1411 of the hollow shaft servo motor 141, the impeller 15 includes a wheel disc 151 and blades 152, an outer circumferential edge of the wheel disc 151 has an annular wall 1511 extending upward, a plurality of blades 152 are disposed on an outer wall surface of the annular wall 1511 at intervals along a circumferential direction, and a plurality of water through holes 1512 penetrating through a wall thickness of the wheel disc 151 are formed in the wheel disc 151, in this embodiment, the number of the plurality is at least 3.

The brush head 13 is used for sweeping the floor, and as shown in fig. 2, 3, 5, 7 and 9, the first brush head 10 and the second brush head are disposed at the dust suction opening 111 corresponding to the air guide channel 11 and located at the center of the corresponding air guide channel 11, and a space is left between the outer peripheral edge of each brush head and the inner peripheral wall of the corresponding air guide channel 11. Specifically, the first brush head and the second brush head have the same structure, and one of the second brush heads is taken as an example for description. The brush head 13 comprises a connecting plate 131 and at least two movable plates 132, the connecting plate 131 is arranged substantially horizontally and is connected with an output shaft 1411 of the hollow shaft servo motor 141, and the connecting plate 131 rotates substantially horizontally around the axis of the hollow shaft servo motor 141 under the driving of the hollow shaft servo motor. The lowest edge of the blade 152 is located below the connection plate 131, and the highest edge of the blade 152 is located above the connection plate 131. As shown in fig. 5 and 7, the lower surface of the wheel disc 151 of the impeller 15 has an upward concave receiving groove 1513, and the connecting plate 131 is fixed in the receiving groove 1513, so that the brush head and the impeller 15 are relatively fixedly connected, and the impeller 15 and the brush head 13 can rotate around the rotation axis of the corresponding brush head under the driving of the hollow shaft servo motor 141. In addition, the number of the movable plates 132 in the embodiment is 6, and the movable plates 132 are arranged at intervals along the periphery of the axis of the connecting plate 131 along the circumferential direction, the inner surface of each movable plate 132 facing the axis of the brush head 13 is provided with a first brush column 133, in a natural state, as shown in fig. 5 and 11, the movable plate 132 is vertically arranged, the first brush column 133 is substantially horizontally arranged, the upper end of the movable plate 132 is rotatably connected to the connecting plate 131, as shown in fig. 12, the lower end of the movable plate 132 can be unfolded outwards during the rotation of the connecting plate 131 to a state that the inner surface of the movable plate 132 faces downwards, that is, the first brush column 133 is vertically arranged; in order to increase the mopping area, the center of the bottom of the connecting plate 131 is provided with a second brush column 1312 extending downwards, and the first brush column 133 is located at the periphery of the second brush column 1312, so that the situation that the inner periphery of the first brush column is not cleaned is avoided, and the mopping floor is cleaner. In a natural state where the connecting plate 131 does not rotate, the movable plate 132 can automatically return to its original shape, the movable plate 132 has elasticity, and the movable plate 132 tends to be always vertical under the action of its elasticity.

As shown in fig. 4, along the flowing direction of the water flow, the pressure equalizing chamber 7 is located between the liquid guiding channels 12 and the liquid supply assembly 6, the liquid supply assembly 6 comprises a water tank 61 and a water pump 62, the water tank 61 is provided with a water filling port 610 for supplying water into the water tank 61, the water inlet end of the water pump 62 is communicated with the water tank 61, the water outlet end of the water pump 62 is communicated with the pressure equalizing chamber 7 so as to pump water into the pressure equalizing chamber 7, and the pressure equalizing chamber 7 is provided with a water outlet 711 respectively communicated with the inlets of the liquid guiding channels 12. Specifically, as shown in fig. 13, the pressure equalizing chamber 7 includes a main chamber 70 which is arranged substantially horizontally and extends along the length direction of the housing 1, the main chamber 70 has a vertical flow passage 71 extending upward at a position corresponding to the liquid guide passage 12, the vertical flow passage 71 is communicated with the liquid guide passage 12, and the vertical flow passage 71 may also take a form extending downward. The vertical flow channel 71 is internally provided with a valve plate 72 which moves under the driving of water flow and conducts the vertical flow channel 71, and the valve plate 72 has elasticity and always has the tendency of blocking the vertical flow channel 71 under the action of the elasticity of the valve plate 72. Specifically, in a state where water flows into the pressure equalizing chamber 7, as shown in fig. 4, the valve sheet 72 moves upward to be in a state of opening the vertical flow passage 71; in a state where no water flows into the pressure equalizing chamber 7, as shown in fig. 6, the valve sheet 72 is restored to its original shape by its own elasticity and is disposed horizontally so as to block the vertical flow passage 71.

As shown in fig. 11, the separation module 04 for a cleaning machine of the present embodiment includes a housing 4, a first baffle 42 for blocking a fluid, and a second baffle 43 for blocking a fluid, the housing 4 has a cavity 41 inside, the cavity 41 has an inlet 400 and an outlet 401, the inlet and the outlet are both communicated with the cavity 41, and the outlet 401 is opened on a top wall of the housing 4. The inlet 400 of the separation module 04 is communicated with the air outlet 113 of the brush head module 01, and the air outlet 401 of the separation module 04 is communicated with the inlet of the blower 5, as shown in fig. 3 and 4. In this embodiment, the inlet 400 is communicated with the outlet 113 to form a flow channel 402.

As shown in fig. 11, the first baffle 42 is disposed in the cavity 41 and located on the fluid flow path between the inlet 400 and the outlet 401, the first baffle 42 divides the cavity 41 to form two communicating chambers, namely a first chamber 411 and a second chamber 412, along the airflow flow path, the first chamber 411 is located upstream of the second chamber 412. The first baffle 42 in this embodiment is vertically disposed, and a first gap 420 for communicating the two chambers is left between the bottom of the first baffle 42 and the bottom wall of the cavity 41. The first baffle 42 is provided with a convex part 422 protruding from the wall surface adjacent to the inlet 400 and extending in the direction away from the exhaust outlet 401, and the convex part 422 is in a strip shape and is arranged transversely, and a plurality of convex parts are arranged at intervals up and down. The first shutter 42 is provided with a first through hole 421 penetrating the thickness thereof, and the first through hole 421 is located below the convex portion 422.

As shown in fig. 11, the second baffle 43 is disposed in the second chamber 412, and therefore, the second baffle 43 is located downstream of the first baffle 42, the second baffle 43 is located on the fluid flow path between the intake port 400 and the exhaust port 401, and the second chamber 412 is partitioned to form two chambers communicating with each other. The second baffle 43 is vertically disposed, and a projection of the air outlet 401 along the vertical direction falls on the second baffle 43. In order to further filter the mixed air flow, a filter element is arranged at the air outlet 401, and the filter element covers the air outlet 401, and is a filter net 49, and the filter net 49 is arranged at the downstream of the air outlet 401 along the air flow flowing path.

As shown in fig. 11, the second baffle 43 includes an inclined plate 431 inclined from top to bottom in a direction gradually away from the first baffle 42, and a baffle 432 located above the inclined plate 431. The inclined plate 431 has a downwardly concave arc section 4310 near the middle, and the inclined plate 431 and the arc section 4310 both have a second through hole (not shown) through the wall thickness of the second baffle 43. The baffle 432 is gradually inclined from bottom to top in a direction away from the first baffle 42, and a second gap 430 is formed between the baffle 432 and the top wall of the second chamber 412. Vertical in the above description and claims includes but is not limited to vertical and substantially horizontal includes but is not limited to completely horizontal and may be slightly off horizontal. .

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims (19)

1. A brush head module for a cleaning machine comprises

The air-guiding device comprises a shell (1), wherein an air-guiding channel (11) is formed inside the shell, the air-guiding channel (11) is provided with a dust suction port (111) and an air outlet (113) which is in fluid communication with the dust suction port (111), and the air outlet (113) is positioned at the downstream of the dust suction port (111) along an airflow flow path;

the brush head (13) is used for cleaning an object to be cleaned and can be rotatably arranged at the dust suction port (111) of the air guide channel (11);

it is characterized by also comprising:

and the power output end of the lifting mechanism is in driving connection with the brush head (13) and is used for driving the brush head (13) to be close to or far away from the object to be cleaned relative to the dust suction opening (111).

2. The brush head module of claim 1, wherein: the brush head (13) can be rotatably arranged in the air guide channel (11) through an installation shaft (142), a fixing piece is arranged on the shell (1), the lifting mechanism comprises an external thread part (1421) which is arranged on the peripheral wall of the installation shaft (142) and far away from the dust suction port (111), and an internal thread hole (612) which is in threaded connection with the external thread part (1421) is formed in the fixing piece.

3. The brushhead module of claim 2, wherein: the air guide channels (11) are at least two and are arranged side by side at intervals, a first brush head (10) capable of rotating around the rotation axis of the air guide channel is arranged in one of the air guide channels (11) under the driving of a driving mechanism, one brush head (13) is arranged in each of the other air guide channels (11), the brush head (13) is a second brush head, and the second brush head is connected with the driving mechanism through a linkage assembly (140).

4. The brushhead module of claim 3, wherein: the driving mechanism is a hollow shaft servo motor (141), an output shaft (1411) of the hollow shaft servo motor (141) and the mounting shaft (142) are arranged side by side, and the first brush head (10) is mounted on the output shaft (1411) of the hollow shaft servo motor (141).

5. The brush head module of claim 4, wherein: the linkage component (140) comprises

A drive gear (143) mounted on an upper end of the output shaft (1411);

a driven gear (144) mounted on the mounting shaft (142) and located below the externally threaded portion (1421); and

and the transmission toothed belt (145) is wound around the peripheries of the driving gear (143) and the driven gear (144) and is always meshed with the driving gear (143) and the driven gear (144).

6. The brushhead module of claim 3, wherein: the first brush head (10) and the second brush head have the same structure.

7. The brushhead module of claim 2, wherein: the dust collector also comprises an elastic member which acts on the mounting shaft (142) and enables the mounting shaft (142) to have a trend of moving away from the dust suction opening (111) all the time.

8. The brushhead module of claim 1, wherein: the brush head (13) comprises

A connecting plate (131) substantially perpendicular to the axis of rotation of the brush head (13);

at least two movable plates (132) which are rotatably arranged on the connecting plate (131) and are arranged at intervals along the circumferential direction, the movable plates (132) are provided with first brush columns (133) used for sweeping the object to be cleaned, in a natural state, the movable plates (132) are arranged along the direction of the rotating axis of the connecting plate (131), the free ends of the first brush columns (133) face the rotating axis of the connecting plate (131), and in a rotating state of the connecting plate (131), the movable plates (132) can be unfolded outwards until the free ends of the first brush columns (133) face the object to be cleaned.

9. The brush head module of claim 8, wherein: a second brush column (1312) extending along the rotation axis of the brush head (13) is arranged at a position adjacent to the center of the connecting plate (131), and the first brush column (133) is located on the periphery of the second brush column (1312).

10. The brush head module of claim 8, wherein: the movable plate (132) has elasticity, and the movable plate (132) has a tendency to always keep being arranged along the rotation axis of the brush head (13) under the action of the elasticity of the movable plate (132).

11. The brush head module of claim 8, wherein: still include with brush head (13) coaxial arrangement's impeller (15), impeller (15) are including rim plate (151) and blade (152), the periphery of rim plate (151) is along having cliff (1511), blade (152) have a plurality ofly and arrange along circumference interval on the outer wall surface of cliff (1511) the axis of rotation of brush head (13) is in vertical just the opening of dust absorption mouth (111) is in under the state of facing down, cliff (1511) upwards extends, the least significant edge of blade (152) is located under connecting plate (131), the most significant edge of blade (152) is located on connecting plate (131).

12. The brush head module of claim 11, wherein: the wheel disc (151) is provided with a plurality of water through holes (1512) penetrating through the wall thickness of the wheel disc.

13. The brushhead module of claim 12, wherein: the brush head (13) is positioned in the center of the air guide channel (11), and a gap is reserved between the outer peripheral edge of the brush head (13) and the inner peripheral wall of the air guide channel (11).

14. The brushhead module of claim 1, wherein: the periphery of the dust collection port (111) is provided with an air inlet (112), the periphery of the dust collection port (111) is provided with a sealing strip (16), and the sealing strip (16) is provided with a blocking piece (161) which can at least partially cover the air inlet (112) and can move along the air flow direction to reduce the area of the air inlet (112) and at the position corresponding to the air inlet (112).

15. The brush head module of any of claims 3-14, wherein: a liquid guide channel (12) is arranged between every two adjacent air guide channels (11), and the liquid guide channel (12) is provided with a liquid outlet (121) communicated with a dust suction port (111) of the adjacent air guide channel (11).

16. The brushhead module of claim 15, wherein: the device is characterized by further comprising a liquid supply assembly (6) and a pressure equalizing cavity (7), wherein the pressure equalizing cavity (7) is located between the liquid guide channels (12) and the liquid supply assembly (6) along the flowing direction of water flow, and the pressure equalizing cavity (7) is provided with liquid discharge ports (711) which are respectively communicated with inlets of the liquid guide channels (12).

17. The brushhead module of claim 16, wherein: the pressure equalizing cavity (7) is including basic level arrangement and edge the main cavity body (70) that the length direction of shell (1) extends, the main cavity body (70) have vertical runner (71) on the position that corresponds drain channel (12), vertical runner (71) with drain channel (12) are linked together, be provided with in vertical runner (71) and move and switch on under the drive of rivers valve block (72) of vertical runner (71), valve block (72) have elasticity, and have the trend of blocking this vertical runner (71) all the time under self elastic action.

18. A cleaning machine having a brushhead module of any one of claims 1 to 17, wherein: the air brush comprises a fan (5) and a separation module (04) used for separating a mixture of water and dust, the separation module (04) is located between the brush head module (01) and the fan (5) along an airflow flowing path, an inlet (400) of the separation module (04) is communicated with an air outlet (113) of an air guide channel (11) of the brush head module (01), and an air outlet (401) of the separation module (04) is communicated with an inlet of the fan (5).

19. The cleaning machine of claim 18, wherein: the cleaning machine is a dust collector or a sweeper.

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