CN114652198B

CN114652198B - Brush head module for cleaning machine and cleaning machine

Info

Publication number: CN114652198B
Application number: CN202011538471.XA
Authority: CN
Inventors: 李德来; 韦明祥; 王强; 刘逸; 曹军达; 郑军妹; 张旭东
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2023-05-26
Anticipated expiration: 2040-12-23
Also published as: CN114652198A

Abstract

The utility model 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 collection port and an air outlet which is in fluid communication with the dust collection port, and the air outlet is positioned at the downstream of the dust collection port along an airflow flowing path; the brush head is used for cleaning an object to be cleaned and can be rotatably arranged at a dust collection opening of the air guide channel; it is characterized in that the method also comprises the following steps: 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 approach or depart from an object to be cleaned relative to the dust collection opening. The cleaning effect is improved.

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

The existing cleaning machine with the floor mopping function comprises a dust collector and a floor sweeping machine, wherein a brushing mode is mainly adopted, and floor sundries are sucked into a storage box inside the dust collector by a fan, so that the floor cleaning function is completed.

As disclosed in chinese patent application No. ZL201921603224.6 (issued to publication No. CN 210902814U), a brush structure for a vacuum cleaner includes: the brush comprises a connecting pipe, a brush hair assembly, a brush hair mounting disc and a corrugated pipe assembly; the center of one side of the bristle mounting plate is provided with a dust collection opening, and the center of the other side of the bristle mounting plate is provided with an exhaust port; the bristle assembly is arranged on one side of the bristle mounting plate, which is provided with a dust collection opening; one end of the corrugated pipe assembly is fixedly connected with the exhaust port of the bristle mounting plate, and the other end of the corrugated pipe assembly is fixedly connected with the connecting pipe. Only has dust collection function, and can not meet the mopping requirements of users.

Therefore, as in chinese patent application No. CN202010009485.6 (application publication No. CN11250333 a), a sweeping robot is disclosed, which includes a sweeping robot body, a sweeping assembly and a driving assembly are disposed in the sweeping robot body, a dust collecting box is also disposed in the sweeping robot body, a water tank is disposed below the dust collecting box, a rotatable mopping brush is disposed below the water tank, the mopping brush is connected with a mopping motor, a mop is disposed on the mopping brush, a squeezing box is disposed at a half side of the mopping brush near the dust suction port, the squeezing box squeezes out sewage from the mopping brush and collects the squeezed sewage, and a penetrating plate is disposed below the water tank to penetrate the clean water in the water tank onto the mopping brush.

Above-mentioned patent sets up the subassembly of sweeping the floor alone and drags the brush to realize simultaneously that the limit is swept the function of dragging, on the one hand, the subassembly of sweeping the floor is at the in-process of actual rotatory clearance, on the other hand, because the subassembly of sweeping the floor and the brush of dragging the floor set up separately, in the in-process of actual clearance, the brush of dragging the floor to the condition of not sweeping the district that drags the floor probably can appear, and then result in inhaling and drag the effect not good, in addition, when there is stubborn spot on the ground, hardly clear up stubborn spot to can have the brush in the middle of with wait to clean the problem that the object contact is bad and leave clean dead angle.

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 increases the contact area between the brush head and the object to be cleaned to improve the cleaning capability.

The second technical problem to be solved by the utility model is to provide a brush head module capable of automatically adjusting the size of an air inlet according to the air inlet quantity.

The third technical problem to be solved by the utility model is to provide a wet and dry cleaning machine.

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 comprises

A housing having an air guide passage formed therein, the air guide passage having a dust suction port and an air outlet in fluid communication with the dust suction port, the air outlet being located 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 a dust collection opening of the air guide channel;

it is characterized in that the method also comprises the following steps:

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 approach or depart from an object to be cleaned relative to the dust collection opening.

The lifting mechanism has various structural forms, preferably, the brush head is rotatably arranged in the air guide channel through the mounting shaft, the shell is provided with a fixing piece, the lifting mechanism comprises an external thread part which is arranged on the peripheral wall of the mounting shaft and far away from the dust collection opening, and the fixing piece is provided with an internal thread hole in threaded connection with the external thread part.

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

The driving mechanism has various structural forms, but from the aspect of simple structure, preferably, the driving mechanism is a hollow shaft servo motor, an output shaft of the hollow shaft servo motor and the mounting shaft are arranged side by side, and the first brush head is mounted on the output shaft of the hollow shaft servo motor.

The linkage assembly has various structural forms, can adopt the transmission form of gears and toothed belts, and can also completely adopt the form of gears, but preferably comprises

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

a driven gear mounted on the mounting shaft and positioned below the male screw portion; and

The driving toothed belt is encircling 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 brush head and the second brush head are identical in structure.

In order to realize the recovery of the installation shaft to the original position, the dust collection device also comprises an elastic piece which acts on the installation shaft and always enables the installation shaft to have a movement trend in a direction away from the dust collection opening.

The brush head has various structural forms, but preferably, the brush head comprises

The connecting plate is basically vertical to the rotation axis of the brush head;

at least two fly leaves, can rotationally set up 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 clean object and cleans, under the natural state, the fly leaf is followed the axis of rotation direction of connecting plate arranges, the free end of first brush post is towards the axis of rotation of connecting plate under the connecting plate is in the pivoted state, the fly leaf can outwards expand to the free end of first brush post is towards the state of treating the clean object. In a non-working natural state, the first brush column is not contacted with the object to be cleaned, so that the contact area with the object to be cleaned is reduced, and the resistance of the following cleaning machine in the walking process is reduced; under the operating condition, the movable plate is outwards unfolded under the action of centrifugal force of high-speed rotation, 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 downwards move 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 the object to be cleaned corresponding to the center of the connecting plate, a second brush column extending along the rotation 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 restore to the original position by utilizing the elasticity of the movable plate under the non-working state, the contact area with the ground is reduced, the resistance is reduced when the subsequent cleaning machine walks, the movable plate has elasticity, and the movable plate has the trend of always keeping vertical under the action of the elasticity of the movable plate.

Preferably, the brush head comprises an impeller which is coaxially arranged with the brush head, the impeller comprises a wheel disc and blades, the peripheral edge of the wheel disc is provided with a circular wall, a plurality of blades are circumferentially arranged on the outer wall surface of the circular wall at intervals, when the rotation axis of the brush head is vertical and the opening of the dust collection opening is in a downward state, the annular wall extends upwards, the lowest edge of the blade is located below the connecting plate, and the highest edge of the blade is located above the connecting plate. Because of the existence of the impeller, when the impeller rotates, the blades can enable the flow field in the air guide channel to generate air flow lifting force flowing in the direction of the air outlet of the air guide channel when the impeller rotates at a high speed, so that after the brush head brushes, the brushed garbage can be timely sucked away, the dust collection effect is improved, and meanwhile, the movable plate is easier to spread.

Preferably, the wheel disc is provided with a plurality of water through holes which are vertically communicated. The water on the blade can flow downwards through the water through holes.

In order to conveniently suck dust and the like into the air guide channel, the brush head is positioned in the center of the air guide channel, and a space is reserved between the peripheral edge of the brush head and the inner peripheral wall of the air guide channel.

The utility model solves the second technical problem by adopting the technical proposal that: the dust collection device is characterized in that an air inlet is formed in the peripheral edge of the dust collection opening, a sealing strip is arranged on the peripheral edge of the dust collection opening, and a baffle capable of at least partially covering the air inlet and capable of moving along the air flow direction to reduce the covering of the air inlet area is arranged at the position corresponding to the air inlet.

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

In order to realize that a plurality of water conservancy diversion passageway goes out water simultaneously, still include liquid feed subassembly and pressure equalizing cavity, along the water flow direction, pressure equalizing cavity is located between liquid guide passageway and the liquid feed subassembly, pressure equalizing cavity have respectively with each liquid guide passageway's import is linked together the leakage fluid dram.

The structure form of pressure equalizing cavity has a plurality of, but preferably, the pressure equalizing cavity is including the basic level arrangement and follow the main cavity body that length direction of shell extends, the main cavity body has vertical runner in the position that corresponds the drain passageway, vertical runner with the drain passageway is linked together, be provided with in the vertical runner and move and switch on under the drive of rivers the valve block of vertical runner, the valve block has elasticity, and has the trend of blocking this vertical runner all the time under self elasticity effect. So, in order to be in the non-working condition of mopping, the valve block is automatic to close vertical runner, avoids appearing "siphon" phenomenon, prevents that the water conservancy diversion passageway from yielding water and wetting ground, is in the state of mopping, and the valve block will be automatic to open vertical passageway, and at this moment, rivers distribute to each drain passageway in, and realize the function of mopping.

The technical scheme adopted by the utility model for solving the third technical problem is as follows: a cleaning machine having the brush head module described above, characterized in that: the air flow path is used for separating the mixture of water and dust, the separation module is positioned between the brush head module and the fan, 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 dust collector or a sweeper.

Compared with the prior art, the utility model 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 clean object, so, increased the brush head and treated clean object's close contact degree, increased area of contact, improved the effect of sweeping, be close to treated clean object through the adjustment brush head for the brush head is more forced on treating clean object, has increased the brush of cleaning object at brush head pivoted in-process and has swept the power, on the one hand, prevents to treat clean object on remaining the clearance dead angle, on the other hand, can brush the intractable spot of treating clean object surface and sweep, and the cleaning effect is better.

Drawings

FIG. 1 is a schematic view of a brush head module according to the present embodiment and a liquid supply assembly mounted thereon;

fig. 2 is a schematic view of a part of the structure of the brush head module of the present embodiment;

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

FIG. 4 is another angular cross-sectional view of FIG. 1;

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

FIG. 6 is a schematic view of the brush head module according to 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 brush head of FIG. 6 in an unfolded state;

FIG. 9 is a cross-sectional view of a portion of the valve plate of FIG. 1 in an open vertical flow path condition;

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

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

FIG. 12 is a schematic view of the impeller;

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

FIG. 14 is a schematic view of the brush head in an operative configuration;

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

Detailed Description

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

As shown in fig. 1 to 15, the cleaning machine according to the embodiment of the utility model is a sweeper, and the object to be cleaned is a floor. The floor sweeping machine comprises a brush head module 01, a fan 5 and a separation module 04 for separating a water and dust mixture, wherein the separation module 04 is positioned between the brush head module 01 and the fan 5 along an airflow flowing path, an inlet 400 of the 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 opening 111, and then separated by the separation module 04 and 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 brush head, a liquid supply assembly 6, an elastic piece and a pressure equalizing cavity 7.

As shown in fig. 1 to 5, the casing 1 is provided with 4 mutually independent air guide channels 11 arranged at intervals side by side, each air guide channel 11 is provided with a dust collection opening 111 with a downward opening, and the plane of the dust collection opening 111 is basically horizontally arranged; a liquid guide channel 12 is arranged between two adjacent air guide channels 11, the liquid guide channels 12 are 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 which are downward in opening and can be communicated with dust collection openings 111, the liquid outlets 121 are communicated with the dust collection openings 111 of the adjacent air guide channels 11, and the liquid outlets 121 are downward in opening, namely, 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 an up-down direction and is substantially perpendicular to a plane where the dust collection opening 111 is located, the 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 a lower end position of the output shaft 1411 of the hollow shaft servo motor 141 adjacent to the dust collection opening 111, and the first brush head 10 only rotates along with the output shaft 1411 in this embodiment. Specifically, the top plate of the air guide channel 11 is partially recessed downwards to form a cavity 103 with an upward opening for accommodating the hollow shaft servo motor 141, and the cavity 103 is provided with a through hole for the output shaft 1411 to pass through.

The brush heads 13 in the other 3 air guide channels 11 are second brush heads, the second brush heads are rotatably arranged in the corresponding air guide channels 11 through mounting shafts 142, and the mounting shafts 142 extend along the up-down direction. The second brush head is in transmission connection with the hollow shaft servo motor 141 through the linkage assembly 140, so that the second brush head can rotate. The aforementioned linkage assembly 140 includes a driving gear 143, a driven gear 144, and a driving toothed belt 145, wherein the driving gear 143 is mounted at the upper end of the output shaft 1411 and is located at the outer side of the air guiding channel 11; the driven gear 144 is mounted on the mounting shaft 142 below the externally threaded portion 1421; the driving toothed belt 145 surrounds 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, 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 portion 1421 disposed on the peripheral wall of the mounting shaft 142 and far away from the dust collection port 111, the mounting shaft 142 is rotatably disposed on the housing 1 through a bearing 146, and the bearing adopts a structure in the prior art, which will not be described in detail in this embodiment. The shell 1 is provided with a fixing part, the fixing part is provided with an internal threaded hole 612 in threaded connection with an external threaded part 1421, and the second brush head moves up and down relative to the fixing part through the running fit of the external threaded part 1421 and the internal threaded hole 612. The aforementioned fixture is a water tank 61 of the liquid supply assembly 6, the water tank 61 being located above the hollow shaft servomotor 141. Thus, the second brush head of this embodiment is rotatable with the respective mounting shafts 142 and movable 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 limit 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 upwards, the elastic member acts on the mounting shaft 142 and always makes the mounting shaft 142 have a tendency to move upwards, and the elastic member in this embodiment is a spring 147 sleeved on the mounting shaft 142. Under the cleaning completion state, the hollow shaft servo motor 141 can move the second brush head upwards to a natural state of being connected with the fixing piece under the action of the reverse rotation and linkage assembly.

As shown in fig. 1 and 8, the air guide channel 11 includes a first channel 100 with a substantially circular cross section, an air inlet 112 is formed at the peripheral edge of the air inlet 111, a sealing strip 16 is mounted at the peripheral edge of the air inlet 111, and a baffle 161 capable of at least partially covering the air inlet 112 and moving along the air flow direction to reduce the area covering the air inlet 112 is disposed at the position corresponding to the air inlet 112, so that the baffle 161 moves relative to the air inlet under the action of the air inlet 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 supporting wheel 117 adjacent to the air inlet 112, and the presence of the supporting 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 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 is formed with a second passage 102 extending upward in the circumferential direction, and the second passage 102 is located downstream of the first passage 100 in the flow direction of the air flow. 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, the periphery of the wheel disc 151 has an upwardly extending annular wall 1511, the blades 152 are plural and are circumferentially spaced on an outer wall surface of the annular wall 1511, and the wheel disc 151 is provided with plural water through holes 1512 penetrating through a wall thickness of the wheel disc 151, in this embodiment, plural water through holes are at least 3.

The brush head 13 is used for sweeping the ground, 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 collection 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 reserved between the 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 will be described as an example. The brush head 13 includes a connection plate 131 and at least two movable plates 132, wherein the connection plate 131 is arranged substantially horizontally, is connected with an output shaft 1411 of the hollow shaft servo motor 141, and is driven by the hollow shaft servo motor 141 to rotate substantially horizontally around its own axis. 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 is provided with an upward concave accommodating groove 1513, and the connecting plate 131 is fixed in the accommodating groove 1513, so that the brush head and the impeller 15 are fixedly connected relatively, and the impeller 15 and the brush head 13 can both rotate around the rotation axis of the corresponding brush head under the driving of the hollow shaft servo motor 141. In addition, 6 movable plates 132 are arranged at intervals along the circumferential direction on the periphery of the axis of the connecting plate 131, the inner surface of each movable plate 132 facing the axis of the brush head 13 is provided with a first brush post 133, the movable plates 132 are vertically arranged in a natural state as shown in fig. 5 and 11, the first brush posts 133 are basically horizontally arranged, the upper ends of the movable plates 132 are rotatably connected to the connecting plate 131, and the lower ends of the movable plates 132 can be outwards unfolded to a state that the inner surface of the movable plates 132 faces downwards during the rotation of the connecting plate 131 as shown in fig. 12, namely, the first brush posts 133 are vertically arranged; in order to increase the sweeping area, the second brush column 1312 extending downwards is arranged at the center of the bottom of the connecting plate 131, and the first brush column 133 is located at the periphery of the second brush column 1312, so that the condition that the inner periphery of the first brush column is not cleaned is avoided, and the sweeping floor is cleaner. In a natural state that the connecting plate 131 is not rotated, the movable plate 132 can automatically restore to the original state, the movable plate 132 has elasticity, and the movable plate 132 has a trend of always keeping vertical under the action of self elasticity.

As shown in fig. 4, along the flow direction of the water, the pressure equalizing cavity 7 is located between the liquid guiding channels 12 and the liquid supplying assembly 6, the liquid supplying 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 filling 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 cavity 7, so that water is pumped into the pressure equalizing cavity 7, and the pressure equalizing cavity 7 is provided with liquid draining ports 711 respectively communicated with the inlets of the liquid guiding channels 12. Specifically, as shown in fig. 13, the pressure equalizing cavity 7 includes a main cavity 70 that is disposed substantially horizontally and extends along the length direction of the casing 1, and the main cavity 70 has a vertical flow channel 71 extending upward at a position corresponding to the liquid guiding channel 12, where the vertical flow channel 71 communicates with the liquid guiding channel 12, and the vertical flow channel 71 may also take a downward extending form. The valve plate 72 which moves to conduct the vertical flow channel 71 under the driving of water flow is arranged in the vertical flow channel 71, the valve plate 72 has elasticity, and the valve plate 72 always has the trend of blocking the vertical flow channel 71 under the self elasticity. Specifically, in a state where water flows into the pressure equalizing chamber 7, as shown in fig. 4, the valve plate 72 moves upward 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 plate 72 is restored to its original shape by its own elasticity and is laterally arranged 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 fluid and a second baffle 43 for blocking fluid, the housing 4 has a cavity 41, the cavity 41 has an inlet 400 and an air outlet 401, both of which are communicated with the cavity 41, and the air outlet 401 is formed 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 fan 5, as shown in fig. 3 and 4. In this embodiment, the inlet 400 and the outlet 113 are communicated to form a flow channel 402.

As shown in fig. 11, the first baffle 42 is disposed in the cavity 41 and is located on the fluid flow path between the inlet 400 and the outlet 401, the first baffle 42 separates the cavity 41 to form two communicating chambers, namely a first chamber 411 and a second chamber 412, respectively, and the first chamber 411 is located upstream of the second chamber 412 along the airflow flow path. 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 plurality of protrusions 422 extending away from the exhaust port 401 on a wall surface adjacent to the inlet 400, wherein the protrusions 422 are arranged in a strip shape and transversely, and are arranged at intervals up and down. The first baffle 42 has a first through hole 421 penetrating the wall thickness, and the first through hole 421 is located below the protruding portion 422.

As shown in fig. 11, the second baffle 43 is disposed in the second chamber 412, and thus, the second baffle 43 is located downstream of the first baffle 42, and the second baffle 43 is located in the fluid flow path between the inlet port 400 and the exhaust port 401, and separates the second chamber 412 to form two chambers communicating with each other. The second baffle 43 is vertically disposed, and the 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 member covering the air outlet 401 is disposed at the air outlet 401, and the filter member is a filter screen 49, and the filter screen 49 is located downstream of the air outlet 401 along the air flow path.

As shown in fig. 11, the second baffle 43 includes a tilting plate 431 that is gradually tilted away from the first baffle 42 from top to bottom, and a baffle 432 that is disposed on the tilting plate 431. The inclined plate 431 has a downwardly concave arc section 4310 adjacent to the middle, and a second through hole (not shown) is formed in the inclined plate 431 adjacent to the upper portion and in the arc section 4310, and penetrates through the wall thickness of the second baffle 43. The baffle 432 is inclined gradually 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 foregoing specification and claims includes, but is not limited to, vertical, and substantially horizontal includes, but is not limited to, substantially horizontal, and may be slightly off-horizontal. .

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", 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. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A brush head module for a cleaning machine comprises

A housing (1) having an air guide passage (11) formed therein, the air guide passage (11) having a dust collection port (111) and an air outlet (113) in fluid communication with the dust collection port (111), the air outlet (113) being located downstream of the dust collection port (111) along an airflow flow path;

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

characterized in that the brush head (13) comprises

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

at least two movable plates (132) rotatably arranged on the connecting plate (131) and circumferentially arranged at intervals, wherein the movable plates (132) are provided with first brush posts (133) for cleaning an object to be cleaned, the movable plates (132) are arranged along the rotation axis direction of the connecting plate (131) in a natural state, the free ends of the first brush posts (133) face the rotation axis of the connecting plate (131), and the movable plates (132) can be outwards unfolded until the free ends of the first brush posts (133) face the object to be cleaned in a state that the connecting plate (131) is in rotation;

the brush head module also comprises:

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 approach or depart from an object to be cleaned relative to the dust collection 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 the mounting 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 mounting shaft (142) and far away from the dust collection opening (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 brush head module of claim 2, wherein: at least two air guide channels (11) are arranged at intervals side by side, a first brush head (10) capable of rotating around the rotation axis of the air guide channels (11) under the drive of a driving mechanism is arranged in one air guide channel (11), one brush head (13) is arranged in each other air guide channel (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. A brush head module according to 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 assembly (140) comprises

A driving gear (143) mounted on the 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 driving toothed belt (145) is arranged around the periphery of the driving gear (143) and the driven gear (144) in a surrounding manner and is always meshed with the driving gear (143) and the driven gear (144).

6. A brush head module according to claim 3, wherein: the first brush head (10) and the second brush head have the same structure.

7. The brush head module of claim 2, wherein: the dust collector also comprises an elastic piece which acts on the mounting shaft (142) and always enables the mounting shaft (142) to have a movement trend in a direction away from the dust collection opening (111).

8. The brush head module of claim 1, 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 positioned at the periphery of the second brush column (1312).

9. The brush head module of claim 1, wherein: the movable plate (132) has elasticity, and the movable plate (132) has a tendency to always remain arranged along the rotation axis of the brush head (13) under the action of self elasticity.

10. The brush head module of claim 1, wherein: the novel dust collector is characterized by further comprising an impeller (15) which is coaxially arranged with the brush head (13), the impeller (15) comprises a wheel disc (151) and blades (152), the periphery of the wheel disc (151) is provided with a circular wall (1511), the blades (152) are arranged on the outer wall surface of the circular wall (1511) at intervals along the circumferential direction, the rotation axis of the brush head (13) is vertical, the opening of the dust collection opening (111) is in a downward state, the circular wall (1511) extends upwards, the lowest edge of each blade (152) is located below the connecting plate (131), and the highest edge of each blade (152) is located above the connecting plate (131).

11. The brush head module of claim 10, wherein: a plurality of water holes (1512) penetrating through the wall thickness of the wheel disc (151) are formed in the wheel disc.

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

13. The brush head module of claim 1, wherein: an air inlet (112) is formed in the periphery of the dust collection opening (111), a sealing strip (16) is arranged on the periphery of the dust collection opening (111), and a baffle (161) capable of at least partially covering the air inlet (112) and moving along the air flow direction to reduce the covering of the area of the air inlet (112) is arranged on the position of the sealing strip (16) corresponding to the air inlet (112).

14. The brush head module of any of claims 3-13, wherein: a liquid guide channel (12) is arranged between two adjacent air guide channels (11), and the liquid guide channel (12) is provided with a liquid outlet (121) communicated with a dust collection opening (111) of the adjacent air guide channels (11).

15. The brush head module of claim 14, wherein: the water supply device is characterized by further comprising a liquid supply assembly (6) and a pressure equalizing cavity (7), wherein the pressure equalizing cavity (7) is positioned between the liquid guide channels (12) and the liquid supply assembly (6) along the flowing direction of water, and the pressure equalizing cavity (7) is provided with liquid drain ports (711) which are respectively communicated with the inlets of the liquid guide channels (12).

16. The brush head module of claim 15, wherein: the pressure equalizing cavity (7) comprises a main cavity (70) which is basically horizontally arranged and extends along the length direction of the shell (1), the main cavity (70) is provided with a vertical flow passage (71) at a position corresponding to the liquid guide passage (12), the vertical flow passage (71) is communicated with the liquid guide passage (12), a valve plate (72) which moves to conduct the vertical flow passage (71) under the driving of water flow is arranged in the vertical flow passage (71), and the valve plate (72) has elasticity and always has a trend of blocking the vertical flow passage (71) under the action of self elasticity.

17. A cleaning machine having a brush head module according to any one of claims 1 to 16, characterized in that: the novel dust collector comprises a fan (5) and a separation module (04) for separating a water and dust mixture, wherein the separation module (04) is positioned 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).

18. The cleaning machine of claim 17, wherein: the cleaner is a dust collector or a sweeper.