CN215191315U - Dust separation module and cleaning machine - Google Patents

Abstract

The invention relates to a dust separation module and a cleaning machine, wherein a flow guide piece is arranged in a containing cavity, an ionization assembly is arranged on a flow path of a first flow passage, and fluid can sequentially flow through the first flow passage and a second flow passage in a shell through the flow guide piece arranged in the containing cavity; in addition, the ionization assembly arranged on the circulation path of the first flow channel is used for preprocessing impurities and dust in the first flow channel, and the dust as less as possible leaves the first flow channel and enters the second flow channel, so that the dust is reduced from the source, the fluid is separated to the maximum extent, the upper fan is prevented from sucking the dust and the impurities, and the service life of the upper fan is ensured.

Description

Dust separation module and cleaning machine

Technical Field

The invention belongs to the field of household washing and cleaning, and particularly relates to a dust separation module and a cleaning machine.

Background

Dust collectors and floor sweepers are common floor cleaning equipment, and dust and sundries on the floor are sucked into a dust collecting box through negative pressure formed by a fan, so that the floor is cleaned.

Taking a dust collector as an example, the existing dust collector is provided with an independent dust separation module at the upstream of a fan to filter sundries and dust, for example, a new Chinese patent with the patent number of CN202020098772.4 discloses a dust cup assembly of the dust collector and a dust collector with the dust cup assembly, and the dust collector is provided with a dust pressing piece around the outer part of a coarse dust separator to guide the flow of air flow. Like this air current and dust can flow towards thick grey separator along pressing grey spare, and during thick grey separator of flowing through, flexible material such as hair, fibre can twine the surface at thick grey separator, and the axial reciprocating motion that presses grey spare to follow thick grey separator this moment cleans thick grey separator with the axial to the dust removal ware to can be convenient for the user clearance operation, improve the operating efficiency and the life of dust catcher.

Although the similar separation structure can realize the separation of the impurities, in the use scene, the impurities are often mixed in the liquid, the existing separation and filtration structure can only deal with the dry environment, the separation and filtration of the treated air and the dry dirt cannot deal with the wet environment, and when the separated dirt carries water, the water can not only permeate the filter screen to hurt the motor and the circuit at the rear end, but also pollute the filter screen, so that the filtration capacity of the water is greatly reduced. For this reason, chinese patent application No. CN202010556062.6 discloses a "dust collector", in which a cyclone-type water-gas separation structure is added inside the dust collector, and a plurality of chambers are arranged in a winding manner, so as to improve the water-gas separation effect, but the plurality of chambers are still communicated with the rear motor region, which may cause that under the condition of excessive water, the unclosed water still enters the rear, resulting in the above-mentioned problems.

In addition, after the filter screen used repeatedly many times, have a large amount of filths attached to and block up the filtration pore on the filter screen, lead to the filter capacity of filter screen and the suction greatly reduced of host computer, shortened the life of filter screen, reduced the efficiency of dust catcher, in order to keep the filter capacity and the suction of dust catcher to last the dynamics, need change the filter screen or pull down the filter screen and wash, cause the cost higher.

Accordingly, there is a need for improvements to existing dust separation modules.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a dust separation module capable of performing secondary separation of dust and impurities, aiming at the current situation of the prior art.

A second technical problem to be solved by the present invention is to provide a dust separation module that forms a vortex in a cyclone to effectively separate dust from a fluid, in view of the current state of the art.

The third technical problem to be solved by the present invention is to provide a dust separation module that effectively prevents liquid from leaking, in view of the current situation of the prior art.

A fourth technical problem to be solved by the present invention is to provide a cleaning machine using the dust separating module in view of the current state of the art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the dust separating module comprises

The shell is cylindrical, a cavity is formed in the shell, the shell is provided with an inlet and an outlet, and the inlet and the outlet are communicated with the cavity;

also includes:

the flow guide piece is arranged in the cavity, the inlet end of the flow guide piece is provided with a first flow passage communicated with the inlet, a space is reserved between the outer wall of the flow guide piece and the inner wall of the cavity to form a second flow passage, the second flow passage is communicated with the first flow passage through a first flow guide opening formed in the outer wall of the flow guide piece, and the outlet end of the flow guide piece is provided with an air outlet communicated with the outlet; and

the ionization assembly is used for intercepting dust at the first flow guide opening, is arranged on a flow path of the first flow guide opening, has an outlet end opposite to the first flow guide opening, and comprises a first ionization part and a second ionization part which have different polarities, and the first ionization part and the second ionization part are detachably connected.

In order to ensure that the ionization probe realizes point discharge, the first ionization part is of a hollow cylindrical structure, the wall surfaces at two ends of the first ionization part are provided with openings for fluid to flow, the side direction of the first ionization part is provided with a ventilation opening communicated with the first flow guide opening, and the second ionization part is provided with the ionization probe which is at least partially positioned in the first ionization part.

Specifically, the second ionization part further comprises a substrate mounted at one end of the first ionization part, and the ionization probe is arranged on the substrate and extends towards the other end of the first ionization part.

Preferably, the ionization probe is further provided with laterally extending pins, and the pins are at least two and are sequentially arranged along the length direction of the ionization probe.

The flow guide piece can be different structures, preferably, the flow guide piece comprises an installation seat and a partition plate which is arranged on a bottom plate of the installation seat and extends towards the inlet, the cross section of the partition plate is basically in a U-shaped structure with two ends bent towards the same side, and a lateral notch of the partition plate forms the first flow guide opening.

As an improvement, the partition plate is contracted at the U-shaped notch, the end part of the partition plate is provided with a flanging extending outwards, and the flanging and the partition plate are in arc transition, so that the closing-in design of the partition plate enables fluid to achieve an accelerating effect when passing through the first flow guide port, on one hand, the loss of power of the fluid during flow channel switching is compensated, on the other hand, the fluid and impurities in the fluid generate speed difference, and separation is facilitated.

In order to further ensure the separation of dust in the fluid, preferably, the flow guide element further comprises a cyclone cover and at least two cyclone elements, and each cyclone element is arranged on the mounting seat in a penetrating way and extends in the same direction with the partition plate; the cyclone cover is installed on the installation seat, at least two air outlets are distributed in the circumferential direction of the cyclone cover and correspond to the cyclone pieces, each cyclone piece is hollow inside, a separation cavity is formed at a position adjacent to the air outlets, a wall plate of the cyclone cover forms a top wall corresponding to the separation cavity, the inlet end of the separation cavity is communicated with the second flow channel, and the outlet end of the separation cavity is communicated with the air outlets.

In order to further solve the second technical problem, the invention adopts the following technical scheme: the cyclone pieces are basically in a conical structure, the caliber of each cyclone piece is gradually increased from the inlet to the outlet, each cyclone piece is arranged on the periphery of the partition board in a surrounding mode along the circumferential direction, gaps are reserved at the ends, adjacent to the outlets, of the two adjacent cyclone pieces to form a second flow guide port, the inlet end of the separation cavity is communicated with the second flow channel through the second flow guide port, and therefore due to the design of the cyclone pieces, fluid can spirally rise along the conical inner cavity of the cyclone pieces when passing through the cyclone pieces and can be exhausted from the air outlet in an accelerating mode.

In order to further enhance the effect of the preliminary separation, it is preferable that the cyclone separator further includes a filter element for intercepting impurities flowing along with the fluid to the second diversion port, and the filter element is in a net shape, is disposed on the flow path of the fluid in the cavity, and is disposed on the periphery of the cyclone element.

In order to further solve the third technical problem, the invention adopts the following technical scheme: the water-proof structure is arranged in the installation region at the rear part of the cavity and is arranged at the downstream of the flow guide piece along the flowing direction of the fluid.

The structure that can adopt difference to prevent leaking realizes, preferably, waterproof construction includes the sealing washer, has waterproof coating's PTFE filter screen and is used for sealing the end cover in the exit with the PTFE filter screen, the bore of end cover is less than the bore of export, the sealing washer cover is established on the periphery wall of end cover, and be located the end cover with between the shells inner wall.

In order to achieve the assembly of the deflector, preferably, the dust separation module further includes a connection structure for sealing the inlet, the connection structure including:

the cover plate is covered at the inlet, and the center part of the cover plate is provided with a through hole;

the first connecting seat is arranged in the containing cavity and supported between the flow guide piece and the cover plate, and the connecting end of the first connecting seat penetrates through the through hole;

and the second connecting seat is arranged on the outer side of the cover plate and is connected with the first connecting seat in a buckling manner.

The connecting end of the first connecting seat is provided with a clamping part which is arranged in the through hole in a penetrating way and at least partially leaks out of the through hole, and the second connecting seat is provided with a clamping ring matched with the clamping part at a corresponding position.

In order to facilitate cleaning of dust and impurities in the housing, the connecting structure further comprises a sealing cover, wherein one side of the sealing cover is rotatably connected to the cover plate through a rotating shaft, so that the other side of the sealing cover swings up and down relative to the cover plate, and the through hole is opened or closed.

In order to further facilitate the opening of the sealing cover, preferably, the housing is further provided with a pressing lock catch for locking or loosening the second end of the sealing cover, the pressing lock catch extends along the length direction of the housing, laterally extending connecting shafts are arranged at two sides of the pressing lock catch, which are adjacent to the middle part of the housing, a positioning seat is arranged on the outer wall of the housing, the pressing lock catch is mounted on the positioning seat, the connecting shafts at two sides of the pressing lock catch are respectively and correspondingly and rotatably connected in shaft holes in the side walls of the positioning seat, and the end part of the pressing lock catch, which is adjacent to the inlet, can be close to or far away from the corresponding position of the sealing cover so as to correspondingly lock or loosen the sealing cover.

Specifically, the positioning seat is further provided with an elastic piece, the elastic piece acts on the end part of the pressing lock catch, which is adjacent to the outlet, and the end part of the pressing lock catch, which is adjacent to the inlet, always has a tendency of being close to the sealing cover.

In order to further solve the fourth technical problem, the technical scheme adopted by the invention is as follows: a cleaning machine using the dust separation module further comprises a fan and a brush head module, the dust separation module is located between the brush head module and the fan along an airflow flow path, an inlet end of the dust separation module is an inlet of the shell, an outlet end of the dust separation module is an outlet of the shell, the inlet is in fluid communication with an outlet end of the brush head module, and the outlet is in fluid communication with an inlet of the fan.

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

Compared with the prior art, the invention has the advantages that: the dust separation module can enable fluid to sequentially flow through the first flow channel and the second flow channel in the shell through the flow guide piece arranged in the containing cavity, so that the flow of the fluid has a sufficiently complex flow form due to the position design of the two flow channels, and when the fluid flows from the first flow channel to the second flow channel, sundries and dust wrapped by the fluid can impact the wall surface of the flow guide piece in the flow channel switching process, so that the primary separation of the sundries and the dust is formed; in addition, the ionization assembly arranged on the circulation path of the first flow channel is used for preprocessing impurities and dust in the first flow channel, and the dust as less as possible leaves the first flow channel and enters the second flow channel, so that the dust is reduced from the source, the fluid is separated to the maximum extent, the upper fan is prevented from sucking the dust and the impurities, and the service life of the upper fan is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of a dust separation module according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a schematic view of a first angle of the housing according to an embodiment of the present invention;

FIG. 4 is a schematic view of a second angle of the housing in an embodiment of the present invention;

FIG. 5 is an overall cross-sectional view of a dust separation module in an embodiment of the present invention;

FIG. 6 is an exploded view of the dust separation module according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of a baffle member in an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of FIG. 7 at another angle;

FIG. 9 is a schematic view of the engagement of the cyclone cover with the cyclone piece;

FIG. 10 is a schematic structural view of a first ionizing member;

FIG. 11 is a schematic structural view of a first ionizing member;

fig. 12 is an overall schematic view of a cleaning machine in an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 12, which are preferred embodiments of the present invention, in this embodiment, as shown in fig. 1 to 11, which are preferred embodiments of the present invention, in this embodiment, the dust separating module includes a housing 4, a flow guide 2 and an ionizing assembly 7. The dust separating module in this embodiment is not limited to be used in a vacuum cleaner, but may also be applied to a cleaning device such as a sweeper, and for convenience of explanation, the vacuum cleaner is taken as an example below.

The cleaning machine with the dust separation module further comprises a fan 02 and a brush head module 01, the dust separation module 03 is located between the brush head module 01 and the fan 02 along an airflow flow path, an inlet end of the dust separation module 03 is the inlet 400 of the housing 4, an outlet end of the dust separation module 03 is the outlet 401 of the housing 4, the inlet 400 is in fluid communication with an outlet end of the brush head module 01, and the outlet 401 is in fluid communication with an inlet of the fan 02.

In this embodiment, the flow guiding element 2 is disposed in the cavity 41, the inlet end of the flow guiding element 2 has a first flow channel 2a communicated with the inlet 400 and extending along the axial direction of the housing 4, a gap is left between the outer wall of the flow guiding element 2 and the inner wall of the cavity 41, a second flow channel 2b is further formed at the periphery of the first flow channel 2a, the second flow channel 2b is communicated with the first flow channel 2a through a first flow guiding opening 2c disposed on the outer wall of the flow guiding element 2, and the outlet end of the flow guiding element 2 has an exhaust opening 20 communicated with the outlet 401.

The ionization assembly 7 is configured to intercept dust at the first diversion opening 2c, and the ionization assembly 7 is disposed on the flow path of the first flow channel 2a, and an outlet end of the ionization assembly 7 is opposite to the first diversion opening 2c, and the ionization assembly 7 includes a first ionization part 71 and a second ionization part 72 having different polarities, and the first ionization part 71 and the second ionization part 72 are detachably connected, specifically, are inserted and matched together. The first ionization part 71 is a hollow cylindrical structure, the wall surfaces of the two ends of the first ionization part are provided with openings 712 for flowing fluid, the side of the first ionization part is provided with ventilation openings 711 communicated with the first diversion opening 2c, the second ionization part 72 is provided with an ionization probe 721, and the ionization probe 721 is at least partially positioned in the first ionization part 71. The second ionization element 72 further includes a substrate 722 mounted at one end of the first ionization element 71, and an ionization probe 721 is disposed on the substrate 722 and extends toward the other end of the first ionization element 71. The ionization probe 721 is further provided with laterally extending pins 723, and at least two pins 723 are sequentially arranged along the length direction of the ionization probe 721.

In this embodiment, the baffle 2 includes a mounting seat 21 and a partition 22 disposed on a bottom plate of the mounting seat 21 and extending toward the inlet 400, a cross section of the partition 22 is substantially in a U-shaped configuration with two ends bent toward the same side, and a lateral gap thereof forms a first diversion opening 2c, and the partition 22 is contracted at the U-shaped gap, and an outwardly extending flange 23 is disposed at an end of the partition 22, and the flange 23 and the partition 22 form an arc transition.

In addition, the air guide member 2 in this embodiment further includes a cyclone cover 25 and at least two cyclone members 24, each cyclone member 24 is disposed on the mounting base 21 and extends in the same direction as the partition plate 22; the cyclone cover 25 is installed on the installation seat 21, at least two air outlets 20 are distributed on the circumference of the cyclone cover 25 corresponding to the cyclone pieces 24, each cyclone piece 24 is hollow and forms a separation cavity 2d at a position adjacent to the air outlet 20, the wall plate of the cyclone cover 25 forms a top wall corresponding to the separation cavity 2d, the inlet end of the separation cavity 2d is communicated with the second flow passage 2b, the outlet end of the separation cavity is communicated with the air outlets 20, the cyclone pieces 24 are basically in a conical structure, the caliber of the cyclone pieces gradually increases from the inlet 400 to the outlet 401, each cyclone piece 24 is circumferentially arranged around the periphery of the partition plate 22, a gap is left at the end adjacent to the outlet 401 of two adjacent cyclone pieces 24 to form a second flow guide port 2e, and the inlet end of the separation cavity 2d is communicated with the second flow passage 2b through the second flow guide port 2 e.

In order to further enhance the primary separation effect, the dust separation module further includes a filtering member 4a for intercepting the impurities flowing along the fluid toward the second flow guiding port 2e, wherein the filtering member 4a is net-shaped, is arranged on the flow path of the fluid in the cavity 41 and is arranged at the periphery of the cyclone 24.

In addition, in order to further ensure that the sewage or other liquid sucked by the dust collector does not flow to the fan along with the airflow to cause short circuit of the fan, the dust separation module further comprises a leakage-proof structure 5 for preventing the sewage from seeping out of the outlet 401, wherein the leakage-proof structure 5 is arranged in the installation section 42 and is arranged at the downstream of the flow guide piece 2 in the flowing direction of the fluid. The leakproof structure 5 comprises a sealing ring 51, a PTFE filter screen 52 with a leakproof coating and an end cover 53 for sealing the PTFE filter screen 52 at the outlet, wherein the caliber of the end cover 53 is smaller than that of the outlet, and the sealing ring 51 is sleeved on the peripheral wall of the end cover 53 and is positioned between the end cover 53 and the inner wall of the shell 4.

In addition, the dust separation module further includes an electrostatic component 3, referring to fig. 5 and 6, the electrostatic component 3 in this embodiment is disposed in the cavity 41 and arranged downstream of the flow guide 2 in the fluid flow direction, and includes a first polar plate 31 and a second polar plate 32 having different polarities and arranged at intervals, and an ionization region is formed between the first polar plate 31 and the second polar plate 32. The electrostatic component 3 may be disposed upstream or downstream of the air guiding member 2, in this embodiment, the electrostatic component 3 is disposed downstream of the air guiding member 2 in the installation section 42 and is disposed opposite to the air outlet 20, and both the first polar plate 31 and the second polar plate 32 are electrically connected to the fan power supply. Conventional electrostatic adsorption needs to be cleaned uniformly to a certain extent by accumulating dust, the dust is difficult to clean due to long time, the dust on the corresponding filter screen can be treated only by removing the static firstly, the filter screen needs to be charged after dust removal, the dust is very complicated, and the design form that two polar plates in the electrostatic component 3 are electrically connected with a fan power supply enables the filter screen to be switched between electrified state and uncharged state along with the start and stop of the fan, when the two polar plates are uncharged, the dust on the two polar plates can automatically fall off without independently cleaning the polar plates, so that the dust cleaning device is very convenient,

in order to conveniently process and separate the remaining impurities and dust, the dust separation module further comprises a connecting structure 6 for sealing the inlet, the connecting structure 6 comprises a cover plate 61, a first connecting seat 63 and a second connecting seat 64, wherein the cover plate 61 covers the inlet 400, a through hole 61a is formed in the center of the cover plate, the first connecting seat 63 is arranged in the accommodating cavity and supported between the flow guide piece 2 and the cover plate 61, the connecting end of the first connecting seat 63 penetrates through the through hole 61a, and the second connecting seat 64 is arranged on the outer side of the cover plate 61 and is connected with the first connecting seat 63 in a buckling mode. The connecting end of the first connecting seat 63 has a fastening portion penetrating through the through hole 61a and at least partially leaking out of the through hole 61a, and the second connecting seat 64 has a snap ring at a corresponding position and matching with the fastening portion. In addition, the connecting structure 6 in this embodiment further includes a sealing cover 62, one side of the sealing cover 62 is rotatably connected to the cover 61 through a rotating shaft 68, so that the other side of the sealing cover 62 swings up and down relative to the cover 61, thereby opening or closing the through hole 61 a. The shell 4 is further provided with a pressing lock catch 67 for locking or unlocking the second end of the sealing cover 62, the pressing lock catch 67 extends along the length direction of the shell, the two sides of the pressing lock catch 67 are respectively provided with a connecting shaft extending laterally at a position close to the middle part, the outer wall of the shell 4 is provided with a positioning seat 65, the pressing lock catch 67 is installed on the positioning seat 65, the connecting shafts at the two sides of the pressing lock catch 67 are respectively and correspondingly and rotatably connected in shaft holes in the side wall of the positioning seat 65, the end part of the pressing lock catch 67 close to the inlet 400 can be close to or far away from the corresponding position of the sealing cover 62 so as to correspondingly lock or unlock the sealing cover 62, the positioning seat 65 is further provided with an elastic piece 66, the elastic piece 66 acts on the end part of the pressing lock catch 67 close to the outlet 401, and the end part of the pressing lock catch 67 close to the inlet 400 always has a tendency close to the sealing cover 62.

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.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. 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 (18)

1. A dust separation module, which comprises

The shell (4) is cylindrical, a cavity (41) is formed in the shell, the shell (4) is provided with an inlet (400) and an outlet (401), and the inlet (400) and the outlet (401) are communicated with the cavity (41);

it is characterized by also comprising:

the flow guide piece (2) is arranged in the accommodating cavity (41), the inlet end of the flow guide piece is provided with a first flow passage (2a) communicated with the inlet (400), a space is reserved between the outer wall of the flow guide piece (2) and the inner wall of the accommodating cavity (41) to form a second flow passage (2b), the second flow passage (2b) is communicated with the first flow passage (2a) through a first flow guide opening (2c) formed in the outer wall of the flow guide piece (2), and the outlet end of the flow guide piece (2) is provided with an exhaust opening (20) communicated with the outlet (401); and

the ionization assembly (7) is used for intercepting dust at the first diversion port (2c), is arranged on a flowing path of the first flow channel (2a), has an outlet end opposite to the first diversion port (2c), and comprises a first ionization part (71) and a second ionization part (72) with different polarities, and the first ionization part (71) and the second ionization part (72) are detachably connected.

2. The dust separation module of claim 1, wherein: the first ionization part (71) is of a hollow cylindrical structure, the wall surfaces of the two ends of the first ionization part are provided with openings (712) for fluid to flow, the side of the first ionization part is provided with ventilation openings (711) communicated with the first flow guide opening (2c), the second ionization part (72) is provided with an ionization probe (721), and the ionization probe (721) is at least partially positioned in the first ionization part (71).

3. The dust separation module of claim 2, wherein: the second ionization part (72) further comprises a substrate (722) arranged at one end of the first ionization part (71), and the ionization probe (721) is arranged on the substrate (722) and extends towards the other end of the first ionization part (71).

4. The dust separation module of claim 3, wherein: the ionization probe (721) is also provided with laterally extending pins (723), and at least two pins (723) are sequentially arranged along the length direction of the ionization probe (721).

5. The dust separation module of claim 4, wherein: the flow guide piece (2) comprises an installation seat (21) and a partition plate (22) which is arranged on a bottom plate of the installation seat (21) and extends towards the inlet (400), the cross section of the partition plate (22) is basically in a U-shaped structure with two ends bent towards the same side, and a lateral gap of the partition plate forms the first flow guide port (2 c).

6. The dust separation module of claim 5, wherein: the baffle plate (22) is contracted at the U-shaped gap, the end part of the baffle plate (22) is provided with a flanging (23) extending outwards, and the flanging (23) and the baffle plate (22) are in arc transition.

7. The dust separation module of claim 6, wherein: the flow guide piece (2) further comprises a cyclone cover (25) and at least two cyclone pieces (24), and each cyclone piece (24) penetrates through the mounting base (21) and extends in the same direction with the partition plate (22); the cyclone cover (25) is installed on the installation seat (21), the air outlet (20) is provided with at least two cyclone pieces (24) which are distributed in the circumferential direction of the cyclone cover (25) correspondingly, each cyclone piece (24) is hollow inside, a separation cavity (2d) is formed at the position adjacent to the air outlet (20), the wall plate of the cyclone cover (25) forms the top wall of the corresponding separation cavity (2d), the inlet end of the separation cavity (2d) is communicated with the second flow channel (2b), and the outlet end of the separation cavity is communicated with the air outlet (20).

8. The dust separation module of claim 7, wherein: the cyclone pieces (24) are basically in a conical structure, the caliber of each cyclone piece (24) is gradually increased from an inlet (400) to an outlet (401), each cyclone piece (24) is circumferentially arranged around the periphery of the partition plate (22), a gap is reserved at the end adjacent to the outlet (401) of each two adjacent cyclone pieces (24) to form a second flow guide port (2e), and the inlet end of the separation cavity (2d) is communicated with the second flow channel (2b) through the second flow guide port (2 e).

9. The dust separation module of claim 7, wherein: the filter element is characterized by further comprising a filter element (4a) used for intercepting sundries flowing to the second diversion port (2e) along with the fluid, wherein the filter element (4a) is in a net shape, is arranged on the flow path of the fluid in the containing cavity (41), and is arranged on the periphery of the cyclone element (24).

10. The dust separation module according to any one of claims 2 to 9, wherein: the device also comprises a waterproof structure (5) for preventing sewage from seeping out of the outlet (401), wherein the waterproof structure (5) is arranged in a mounting interval (42) at the rear part of the cavity (41) and is arranged at the downstream of the flow guide part (2) in the flowing direction of the fluid.

11. The dust separation module of claim 10, wherein: waterproof construction (5) include sealing washer (51), have waterproof coating's PTFE filter screen (52) and be used for sealing up end cover (53) in the exit with PTFE filter screen (52), the bore of end cover (53) is less than the bore of exit, sealing washer (51) cover is established on the periphery wall of end cover (53), and be located end cover (53) with between casing (4) inner wall.

12. A dust separation module according to any one of claims 1-9, further comprising a connection structure (6) for sealing the inlet, said connection structure (6) comprising:

the cover plate (61) is covered on the inlet (400), and the center part of the cover plate is provided with a through hole (61 a);

the first connecting seat (63) is arranged in the containing cavity and supported between the flow guide piece (2) and the cover plate (61), and the connecting end of the first connecting seat (63) penetrates through the through hole (61 a);

and the second connecting seat (64) is arranged on the outer side of the cover plate (61) and is in snap connection with the first connecting seat (63).

13. The dust separation module of claim 12, wherein: the connecting end of the first connecting seat (63) is provided with a clamping part which is arranged in the through hole (61a) in a penetrating way and at least partially leaks out of the through hole (61a), and the second connecting seat (64) is provided with a clamping ring matched with the clamping part at a corresponding position.

14. The dust separation module of claim 13, wherein: the connecting structure (6) further comprises a sealing cover (62), one side of the sealing cover (62) is rotatably connected to the cover plate (61) through a rotating shaft (68), so that the other side of the sealing cover swings up and down relative to the cover plate (61), and the through hole (61a) is opened or closed.

15. The dust separation module of claim 14, wherein: the improved sealing cover is characterized in that a pressing lock catch (67) used for locking or loosening a second end of the sealing cover (62) is further arranged on the shell (4), the pressing lock catch (67) extends along the length direction of the shell, laterally extending connecting shafts are arranged on two sides of the pressing lock catch (67) at positions close to the middle of the shell, a positioning seat (65) is arranged on the outer wall of the shell (4), the pressing lock catch (67) is installed on the positioning seat (65), the connecting shafts on the two sides of the pressing lock catch are respectively and correspondingly and rotatably connected in shaft holes in the side wall of the positioning seat (65), and the end portion, close to the inlet (400), of the pressing lock catch (67) can be close to or far away from the corresponding position of the sealing cover (62) so as to correspondingly lock or loosen the sealing cover (62).

16. The dust separation module of claim 15, wherein: an elastic piece (66) is further arranged on the positioning seat (65), the elastic piece (66) acts on the end part of the pressing lock catch (67) adjacent to the outlet (401), and the end part of the pressing lock catch (67) adjacent to the inlet (400) always has the tendency of being close to the sealing cover (62).

17. A cleaning machine having the dust separation module of any one of claims 1 to 16, characterized in that: the toothbrush further comprises a fan (02) and a brush head module (01), the dust separation module (03) is located between the brush head module (01) and the fan (02) along an airflow flow path, an inlet end of the dust separation module (03) is an inlet (400) of the shell (4), an outlet end of the dust separation module (03) is an outlet (401) of the shell (4), the inlet (400) is in fluid communication with an outlet end of the brush head module (01), and the outlet (401) is in fluid communication with an inlet of the fan (02).

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

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