CN218852604U - A separation module and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a separation module for a cleaning machine and the cleaning machine, the separation module for the cleaning machine comprises a shell, a cavity chamber is arranged in the shell chamber and is used for being communicated with the cleaning module, and the cavity chamber is provided with an air outlet which is used for being communicated with the fan fluid of the cleaning machine; the annular piece is positioned in the cavity, and the annular wall of the annular piece surrounds the periphery of the air outlet to form a flow channel communicated with the air outlet; the separating piece is positioned in the flow channel of the annular piece, a gap for air to pass through is reserved between the separating piece and the inner peripheral wall of the annular piece, and the separating piece covers the air outlet along the projection of the fluid flowing direction in the air outlet on the surface where the air outlet is positioned. The separating piece and the annular piece realize baffling separation of air flow, so that large particles or garbage with heavy volume are settled at the bottom of the chamber, and the service life of the filter screen is prolonged.

Description

A separation module and cleaning machine for cleaning machine

Technical Field

The utility model belongs to family's washing, clean the field, concretely relates to a separation module and cleaner for cleaner.

Background

The cleaner is a dust collector or a sweeper, a mixture of dust mixed with water vapor on the ground and the like is sucked into an inner cavity of the cleaner, and in order to separate the mixture of dust particles and water vapor, a separating device is usually adopted in the existing cleaner for separation.

The current separation module, like the swirl filtration separation system and the sweeping robot and equipment in the Chinese utility model patent, the patent application number is ZL201921208546.0 (the publication number is CN 210612041U), discloses a swirl filtration separation system, which comprises a filtration structure with a swirl channel cavity, a dust box structure embedded with the filtration structure, a gauze support used for connecting the filtration structure and the dust box structure, and a HEPA support arranged on the dust box structure; the dust box structure is provided with an installation cavity, a dust cavity communicated with the installation cavity, an air inlet communicated with the installation cavity and an air outlet communicated with the dust cavity; the gauze support is provided with a gauze, and the HEPA support is provided with a HEPA; the filtering structure is arranged in the installation cavity, and the vortex passage cavity comprises a starting end, a tail end and a plurality of outlets positioned between the starting end and the tail end; the starting end of the vortex channel cavity is connected with the air inlet, the outlet of the vortex channel cavity is connected with the dust cavity through the gauze support, and the tail end of the vortex channel cavity is connected with the dust cavity. Although the separation of dust is achieved in this patent, hair and light and large garbage may be entangled with the gauze (filter element) after the vortex separation, thereby causing difficulty in cleaning the gauze.

Therefore, further improvements to existing separation modules are needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to above-mentioned prior art's current situation, provides a through changing fluid flow direction with the separation module that is used for the cleaning machine that improves the collision number of times and then improve the separation ability.

The second technical problem to be solved by the present invention is to provide a cleaning machine with the above separation module.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a separation module for a cleaning machine, comprising:

a housing having a chamber therein for communicating with a cleaning module of a cleaning machine, the chamber having an exhaust outlet for fluid communication with a blower of the cleaning machine;

it is characterized by also comprising:

the annular piece is positioned in the cavity, and the annular wall of the annular piece surrounds the periphery of the air outlet to form a flow channel communicated with the air outlet;

the separating piece is positioned in the flow channel of the annular piece, a gap for air to pass through is reserved between the separating piece and the inner peripheral wall of the annular piece, and the separating piece covers the air outlet along the projection of the fluid flowing direction in the air outlet on the surface where the air outlet is positioned.

Preferably, the opening of the annular member is an air passing opening opposite to the air outlet, the air passing opening is located at the upstream of the air outlet along a fluid flow path, and the projection of the separating member on the surface of the air passing opening along the fluid flow direction in the air passing opening covers the air passing opening. Therefore, the fluid flowing in through the air opening is blocked after passing through the separating piece, and the separation of water is realized.

The surface of the air outlet can be vertically arranged or transversely arranged, but preferably, the surface of the air outlet is transversely arranged, the annular member is vertically arranged, and the air passing opening is positioned below the air outlet. As such, the exhaust vent is located on the top of the chamber.

In order to make the wind speed distribution in the chamber uniform and avoid the influence on the separation effect caused by the non-uniform wind speed distribution, the annular piece is positioned at the upper part of the chamber and close to the center.

In order to when the machine of sweeping the floor emptys, reduce rivers in the chamber and get into in the air-out passageway, be provided with in the casing with the air-out passageway that the air exit is linked together, be provided with in the air-out passageway and filter the piece, along fluid flow path, filter the piece and be located the low reaches of air exit.

In order to prevent liquid from entering the gap, the separating piece is a transversely arranged separating plate, and the periphery of the separating plate extends downwards to form a rib.

The cross-section of the ring may be polygonal or elliptical or circular, but preferably the cross-section of the ring is circular.

Preferably, the shell is provided with an air inlet channel communicated with the cavity, at least part of the air inlet channel is positioned in the cavity, and the cross section of the cavity is circular or elliptical. At this time, the portion of the air intake passage located in the chamber guides the air flow entering the chamber, and blocks the splash splashed from the bottom.

In order to improve the separating capacity, the inner peripheral wall of the annular member is provided with a baffle plate extending vertically, the separating member is arranged on the baffle plate, and the gap is formed between the separating member and the baffle plate and the inner peripheral wall of the annular member.

In order to further improve the separation capacity, the baffle plates are at least two and are arranged at intervals along the circumferential direction, and the separating piece is positioned in a space surrounded by the baffle plates. The baffle can intercept and block the rotating airflow which is blocked and turned by the annular piece again, the rotating path is reduced, the air speed of the airflow is reduced, so that the water particles are baffled and separated again, and the separation capacity is improved.

In order to improve the separation capacity, the number of the baffles is 4 or 6.

The separating member may be a plate-shaped separating plate or a structure with other shapes, but preferably, the separating member is a transversely arranged separating plate, and the outer periphery of the separating plate is relatively fixed on the inner periphery of the baffle plate. The baffle realizes the fixed support of the separation plate.

One of the design forms of the baffle is as follows: the top surface of baffle with the bottom surface of the wallboard at exhaust outlet place contacts, and the bottom surface of this baffle with the bottom surface of annular member contacts. The separation capacity is improved and the water flow rate sputtered to the top surface of the chamber is reduced.

The second design form of the baffle: and a space is reserved between the top surface of the baffle and the bottom surface of the wall plate where the air outlet is positioned.

In order to guide the fluid flowing out through the air outlet of the air inlet channel outwards and then reduce the sloshing of water stored at the bottom of the cavity, the shell is provided with the air inlet channel communicated with the cavity, at least part of the air inlet channel is positioned in the cavity and on the peripheral side of the ring-shaped piece, the peripheral wall of the ring-shaped piece or the air inlet channel is adjacent to a blocking wall which blocks the fluid flowing out through the air outlet of the air inlet channel and flows inwards on the wall plate of the ring-shaped piece, and the blocking wall is adjacent to the air outlet of the air inlet channel.

Preferably, the blocking wall extends at least partially downwards, and the bottom edge of the blocking wall is positioned below the bottom edge of the air outlet of the air inlet channel. The presence of the baffle separates the air stream as it collides with the baffle and blocks the inwardly moving fluid.

And a blocking wall extending downwards is arranged on the outer peripheral wall of the annular piece. The presence of the baffle separates the air stream as it collides with the baffle and blocks the inwardly moving fluid.

The annular member has various structural forms, but preferably, the annular wall of the annular member has a second contraction section which gradually contracts inwards from top to bottom. So, get into the wind speed in the first shrink section and diminish more and more, conveniently inhale the rubbish sewage in the loop forming element and can rely on gravity to fall down again by oneself when shutting down even in the cleaning process to under this state, the clearance between separation plate and the loop forming element inner wall leads to the air current velocity of flow too big along narrowing gradually along fluid flow path, and the air current is changeed upward flow.

Further preferably, the annular wall of the annular member further includes a connecting section connected to the upper peripheral edge of the second contracting section, and the connecting section is a first contracting section which expands upwards and outwards gradually from the upper peripheral edge of the second contracting section or a vertical section which extends vertically upwards from the upper peripheral edge of the second contracting section. Therefore, the cross section of the airflow entering the annular piece flow channel is gradually increased, the passing amount of the airflow after separation is increased, and the wind speed is gradually reduced.

The baffles may be provided on the inner wall of the first constriction or on the inner wall of the second constriction, but preferably the baffles are provided on the inner wall of the second constriction.

In order to enable the liquid on the separating piece to flow downwards and prevent the liquid from accumulating on the separating piece, a gap for the liquid to pass through is reserved between the bottom of the separating piece and the top edge of the baffle, the annular wall is provided with an opening communicated with the gap, and the opening is positioned on the inner side of the baffle.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: a cleaning machine with the separation module is characterized in that: a fan is also included along the fluid flow path, the fan being located downstream of the filter element.

The cleaning machine may be a floor washer or a floor sweeper, but preferably the cleaning machine is a floor sweeper.

Compared with the prior art, the utility model has the advantages of: the annular piece is arranged in the shell of the separation module for the cleaning machine, the annular wall of the annular piece forms a flow channel communicated with the air outlet, the separation piece is positioned in the flow channel of the annular piece, a gap for air to pass through is reserved between the separation piece and the inner peripheral wall of the annular piece, the projection of the separation piece on the surface of the air outlet along the air flow flowing direction in the air outlet covers the air outlet, and therefore the air flow flowing to the air outlet can collide with the annular piece and then collide and separate with the separation piece, and flows into the air outlet after being baffled by the gap, therefore, the baffling separation of the air flow is realized by the separation piece and the annular piece, large particles or heavy garbage are settled at the bottom of the cavity, the filtration of a subsequent filter screen is reduced, and the service life of the filter screen is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the sweeper in this embodiment 1;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a longitudinal cross-sectional view of a portion of the structure of FIG. 2;

FIG. 5 is a transverse cross-sectional view of FIG. 2;

FIG. 6 is a schematic view of the ring member of FIG. 1;

FIG. 7 is a cross-sectional view of a portion of the structure of FIG. 3;

fig. 8 is a sectional view showing a part of the structure of the sweeper in embodiment 2;

FIG. 9 is a sectional view of a separation module in example 3;

FIG. 10 is a sectional view of the separation module in example 4;

FIG. 11 is a schematic view showing the structure of the separation module of example 5 in which the partition wall and the separating member are engaged;

fig. 12 is a cross-sectional view of fig. 11.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Example 1:

as shown in fig. 1 to 7, it is a first preferred embodiment of the present invention.

As shown in fig. 7, the sweeper of the present embodiment includes a body 6, a cleaning module 4 for sweeping the floor to be cleaned, a separating module, and a fan 2. The separation module is relatively fixed on the machine body 6. The specific structure of the cleaning module in this embodiment adopts the structure in the prior art, and details will not be described in this embodiment. Along the fluid flow path, the separation module is located between the cleaning module 4 and the fan 2, the cleaning module 4 being located upstream of the separation module. The air inlet channel of the separation module is communicated with the cleaning module, and the exhaust port of the separation module is communicated with the inlet of the fan 2. Under the effect of fan, can make and form the negative pressure in cleaning module and the separation module to inhale rubbish such as dust, water, granule in the cleaning module through the dust absorption mouth of cleaning module, will carry out the gaseous discharge after the separation through the separation module afterwards, the sewage after the separation is stored in the cavity of separation module.

As shown in fig. 4 and 5, the separation module includes a housing 1, a filter member, an annular member 13, and a separation member. The cross-section of the housing 1 is circular or elliptical. In this embodiment, the cross section of the housing 1 is circular, and the housing 1 has a chamber 10 for communicating with the cleaning module of the sweeper and an air outlet channel 12 communicating with the chamber 10 inside, the chamber 10 has an air outlet 101 for communicating with the fluid of the fan 2 of the cleaner and an air inlet channel 14 communicating with the cleaning module 4, the wall plate 15 where the air outlet 101 is located is transversely arranged, and the air outlet channel 12 is partially located above the air outlet 101 and is located at the downstream of the air outlet 101. The air intake channel 14 is used for allowing air to enter the chamber 10 tangentially, along the flowing direction of the fluid, the air intake channel 14 sequentially includes a straight section 141 with a constant cross-sectional area, a reduced section 142 with a gradually decreasing cross-sectional area, and an air guide section 143 located in the chamber 10, and an outlet of the air guide section 143 is an air outlet 1431 of the air intake channel 14.

As shown in fig. 5 and 6, the annular member 13 is annular and vertically disposed in the chamber 10, and the annular wall of the annular member 13 surrounds the periphery of the air outlet 101 and forms a flow channel 130 communicated with the air outlet 101, in this embodiment, the annular member 13 is located near the center of the upper portion of the chamber 10, and the air guiding section 143 is located on the peripheral side of the annular member 13. The inner peripheral wall of the chamber 10 is provided with a laterally inwardly extending guide plate 103, the guide plate 103 extending spirally downward and the inner peripheral edge of the guide plate 103 being connected to the outer wall of the annular member 13. The ring member 13 in this embodiment may be only annular, and although the cross section of the ring member 13 in this embodiment is circular, it may also be oval or polygonal, or have other shapes. The spiral guide plate can guide light garbage (lint and fine dust) to be in full contact with water stored at the bottom of the cavity, the light garbage in the airflow is removed by utilizing the adsorption force of water particles, and the filtering capacity of the filter screen is reduced.

As shown in fig. 4, along the fluid flow path, the flow channel 130 is located between the air inlet channel 14 and the air outlet channel 12, the air outlet channel 12 is located downstream of the flow channel 130, and the guide plate 103 is located between the flow channel 130 and the air inlet channel 14. The filtering piece is a filter screen 3 arranged in the air outlet channel 12 of the shell 1, and the fan 2 is positioned at the downstream of the filter screen 3. The annular wall of the annular member 13 sequentially comprises a connecting section and a second contraction section 13b from top to bottom, the connecting section is a first contraction section 13a which gradually contracts inwards from top to bottom, the second contraction section 13b gradually contracts inwards from top to bottom from the lower periphery of the first contraction section 13a, and the slope of the first contraction section 13a is greater than that of the second contraction section 13b; further, the connecting section may also be a vertical section extending vertically upward from the upper periphery of the second constricted section 13 b. The lower end of the second contraction section 13b is opened to form an air inlet 1301, the air inlet 1301 is arranged opposite to the air outlet 101, the air inlet 1301 is located upstream of the air outlet 101 and below the air outlet 101 along the fluid flow path, and in this embodiment, the air inlet 1301 and the air outlet 101 are both circular. The water on the inner wall of the annular part can flow to the bottom of the cavity along the inner wall of the annular part. The outer peripheral wall of the annular member 13 has a blocking wall 132 for blocking the fluid flowing out through the air outlet 1431 of the air inlet passage 14 from flowing inward, and the blocking wall 132 is disposed adjacent to the air outlet 1431 of the air inlet passage 14. Furthermore, the baffle wall can also be arranged on the side wall of the air inlet channel 14 adjacent to the ring element 13. The blocking wall 132 of the present embodiment extends downward, and the bottom edge of the annular wall 132 is located below the bottom edge of the air outlet 1431. In addition, the blocking wall 132 in this embodiment is inclined gradually outward from top to bottom, and it is also possible to adopt a form in which the blocking wall 132 is laterally extended and has an extension wall extending downward at the free end of the blocking wall 132.

As shown in fig. 4, 5 and 7, the separating member is a transversely arranged and plate-like separating plate 5, and the separating plate 5 serves at least to separate dust and liquid. The separation plate 5 is located in the flow channel 130 of the annular member 13. In order to support the separating plate 5, a vertically extending baffle 131 is disposed on the inner peripheral wall of the annular member 13, and a space is left between the top surface of the baffle 131 and the bottom surface of the wall plate 15 where the air outlet 101 is located, specifically, the top surface of the baffle 131 is flush with the top surface of the separating plate 5. There are at least two baffles 131, and in this embodiment, there are four baffles 131, and two, three, or more than four baffles can be used, and in addition, 6 baffles can be used. The orthographic projection of the separating plate 5 on the first horizontal plane along the vertical direction is circular, and the orthographic projection of the baffle 131 on the first horizontal plane along the vertical direction extends in the radial direction of the orthographic projection of the separating plate 5. The separating members are located in the space surrounded by the baffles 131, and specifically, the outer peripheral edge of the separating plate 5 is relatively fixed to the inner edge of the baffles 131, so that the baffles support and fix the separating plate. In addition, all the baffles 131 are arranged on the inner wall of the second contraction section 13b at intervals along the circumferential direction, and gaps 01 for wind to pass are formed among the baffles 131, the inner circumferential wall of the annular member 13 and the outer wall of the separation plate 5. Along the fluid flow path, gap 01 is located between air inlet 1301 and air outlet 101. In order to prevent liquid from entering the gap, the outer periphery of the separating plate 5 is extended downward to form a rib 51, so that water drops blocked by the separating plate 5 slide to the outer edge of the separating plate 5 under the action of the air flow and are blocked by the rib 51, thereby preventing the air flow from being carried up again to enter the gap 01. In addition, a notch 1311 is formed on the top surface of the baffle 131, and the rib 51 is partially located in the corresponding notch 1311. As shown in fig. 4, the projection of the separating plate 5 on the surface of the air outlet 101 along the fluid flowing direction (i.e., vertical direction) in the air outlet 101 covers the air outlet 101. The projection of the separation plate 5 on the surface of the air inlet 1301 along the flowing direction of the fluid in the air inlet 1301 covers the air inlet 1301, and the opening area of the air inlet 1301 is larger than that of the air outlet 101 in this embodiment.

The working process of the separation module is as follows:

when the sweeper cleans the ground, the fan 2 starts to operate, when garbage is sucked from the dust suction port of the cleaning module 4, before entering the chamber 10 of the separation module, the cross-sectional area of the air inlet channel 14 is gradually reduced, the flow velocity of fluid is increased, and then the garbage quickly enters the chamber 10, at this time, large-volume garbage can be settled under the dual effects of wall collision loss kinetic energy and flow velocity reduction, small-volume dust and hair can continuously rotate downwards along with the air flow and along the inner wall surface of the shell under the guidance of the spiral guide plate 103, and are gradually separated from the rotating air flow under the action of centrifugal force in the process and settle at the bottom of the chamber 10, wherein a part of small-volume garbage which is lighter in weight and cannot be separated by utilizing the centrifugal force can be adsorbed and removed by utilizing the adsorption force of water stored at the bottom of the chamber 10, finally, a small amount of residual dust or water particles can move towards the flow channel 130 at the upper part along with the air flow, and under the baffling and blocking action of the separation plate and the baffle plate 131 in the flow channel 130, water particles and dust in the rotating air flow can be completely separated. Through the secondary separation and filtration in the flow channel 130, almost no garbage impurities are contained in the air flow finally discharged into the air outlet channel, the service life of the subsequent filter screen is greatly prolonged, and the replacement frequency is reduced. In the above embodiments, the vertical direction includes, but is not limited to, vertical.

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 present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be oriented in different directions, the directional terms are used for descriptive purposes and are not intended to be limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter, referred to as a first portion and a second portion) that fluid (gas, liquid or a mixture thereof) can flow along a flow path from the first portion or/and be transported to the second portion, and may be the first portion and the second portion directly connected to each other or indirectly connected to each other through at least one third member, such as a fluid passage, e.g., a pipe, a channel, a duct, a flow guide member, a hole, a groove, or a chamber allowing fluid to flow therethrough, or a combination thereof.

Example 2:

fig. 8 shows a second preferred embodiment of the present invention.

This embodiment differs from embodiment 1 described above only in that: the top surface of the baffle 131 contacts the bottom surface of the wall plate 15 where the air outlet 101 is located, and the bottom surface of the baffle 131 contacts the bottom surface of the annular member, specifically, the bottom surface of the baffle 131 contacts the periphery of the air inlet 1301.

Example 3:

fig. 9 shows a third preferred embodiment of the present invention.

This embodiment differs from embodiment 1 described above only in that: 1. the shape of the annular wall is different, specifically, the whole annular wall of the annular piece gradually shrinks inwards from top to bottom, namely, the annular wall only comprises a second shrinking section 13b; 2. the baffle 131 is only one and is connected to a part of the outer edge of the separation plate 5. 3. There is no barrier wall present.

Example 4:

fig. 10 shows a fourth preferred embodiment of the present invention.

This embodiment differs from embodiment 1 described above in that: 1. the baffle 131 is only one and is connected to a part of the outer edge of the separation plate 5. 2. The blocking wall 132 extends downward.

Example 5:

as shown in fig. 11 and 12, the present invention is a fifth preferred embodiment.

This embodiment differs from embodiment 4 described above only in that: 1. a gap for liquid to pass through is reserved between the bottom of the separating plate 5 and the top edge of the baffle 131, the annular wall is provided with an opening 05 communicated with the gap, the opening 05 is positioned on the inner side of the baffle 131, and the opening 05 in the embodiment is arranged on the second contraction section; 2. the bottom edge of the blocking wall 132 is formed with an extension 1321 extending outward.

Claims (23)

1. A separation module for a cleaning machine, comprising:

a casing (1) having inside a chamber (10) for communicating with a cleaning module of a cleaning machine, said chamber (10) having an air outlet (101) for fluid communication with a fan (2) of the cleaning machine;

it is characterized by also comprising:

the annular piece (13) is positioned in the chamber (10), the annular wall of the annular piece surrounds the periphery of the air outlet (101), and a flow passage (130) communicated with the air outlet (101) is formed;

the separating piece is positioned in the flow channel (130) of the annular piece (13), a gap (01) for air to pass through is reserved between the separating piece and the inner peripheral wall of the annular piece (13), and the separating piece covers the air outlet (101) along the projection of the flow direction of the fluid in the air outlet (101) on the surface where the air outlet (101) is located.

2. The separation module of claim 1, wherein: the opening of the annular piece (13) is an air passing opening (1301) opposite to the air exhaust opening (101), along a fluid flow path, the air passing opening (1301) is located at the upstream of the air exhaust opening (101), and the projection of the separating piece on the surface of the air passing opening (1301) along the fluid flow direction in the air passing opening (1301) covers the air passing opening (1301).

3. The separation module of claim 2, wherein: the surface of exhaust exit (101) place horizontal arrangement, loop forming element (13) vertical arrangement, air passing opening (1301) is located below exhaust exit (101).

4. The separation module of claim 3, wherein: the ring member (13) is located in the upper portion of the chamber (10) near the center.

5. The separation module of claim 2, wherein: be provided with in casing (1) with air-out passageway (12) that air exit (101) are linked together, air-out passageway (12) local at least is located on air exit (101), be provided with in air-out passageway (12) and filter the piece, along fluid flow path, filter the piece and be located the low reaches of air exit (101).

6. The separation module of claim 3, wherein: the separating piece is a transversely arranged separating plate (5), and a rib (51) is formed on the periphery of the separating plate (5) in a downward extending mode.

7. The separation module of claim 3, wherein: the cross section of the annular piece (13) is circular.

8. The separation module of claim 1, wherein: the shell (1) is provided with an air inlet channel (14) communicated with the cavity (10), at least part of the air inlet channel (14) is located in the cavity (10), and the cross section of the cavity (10) is circular or oval.

9. The separation module according to any one of claims 2 to 7, wherein: the inner peripheral wall of the annular piece (13) is provided with a baffle (131) which vertically extends, the separating piece is arranged on the baffle (131), and the gap (01) is formed between the separating piece and the inner peripheral walls of the baffle (131) and the annular piece (13).

10. The separation module of claim 9, wherein: air inlet (1301) and air exit (101) all are circular, the orthographic projection of separator on first horizontal plane along vertical direction is circular, baffle (131) are along the radial extension of this separator's orthographic projection of vertical direction on first horizontal plane.

11. The separation module of claim 9, wherein: the number of the baffle plates (131) is at least two, the baffle plates are arranged at intervals along the circumferential direction, and the separating piece is positioned in a space surrounded by the baffle plates (131).

12. The separation module of claim 11, wherein: the number of the baffles (131) is 4 or 6.

13. The separation module of claim 9, wherein: the separating piece is a transversely arranged separating plate (5), and the peripheral edge of the separating plate (5) is relatively fixed on the inner edge of the baffle (131).

14. The separation module of claim 9, wherein: the top surface of the baffle (131) is in contact with the bottom surface of the wall plate (15) where the air outlet (101) is located, and the bottom surface of the baffle (131) is in contact with the bottom surface of the annular piece.

15. The separation module of claim 9, wherein: and a space is reserved between the top surface of the baffle (131) and the bottom surface of the wall plate (15) where the exhaust outlet (101) is positioned.

16. The separation module of claim 9, wherein: the shell (1) is provided with an air inlet channel (14) communicated with the cavity (10), the air inlet channel (14) is at least partially positioned in the cavity (10) and positioned on the peripheral side of the annular piece, a blocking wall (132) for blocking fluid flowing out from an air outlet (1431) of the air inlet channel (14) to flow inwards is arranged on the peripheral wall of the annular piece (13) or a wall plate of the air inlet channel (14) adjacent to the annular piece (13), and the blocking wall (132) is arranged adjacent to the air outlet (1431) of the air inlet channel (14).

17. The separation module of claim 16, wherein: the retaining wall (132) extends at least partially downward, and the bottom edge of the retaining wall (132) is located below the bottom edge of the air outlet (1431) of the air inlet channel (14).

18. The separation module of claim 9, wherein: the annular wall of the annular piece (13) is provided with a second contraction section (13 b) which gradually contracts inwards from top to bottom.

19. The separation module of claim 18, wherein: the annular wall of the annular piece (13) further comprises a connecting section connected with the upper peripheral edge of the second contraction section (13 b), and the connecting section is a first contraction section (13 a) which expands upwards and outwards gradually from the upper peripheral edge of the second contraction section (13 b) or a vertical section which extends upwards from the upper peripheral edge of the second contraction section.

20. The separation module of claim 18, wherein: the baffle (131) is arranged on the inner wall of the second contraction section (13 b).

21. The separation module of claim 9, wherein: a gap for liquid to pass through is reserved between the bottom of the separating piece and the top edge of the baffle (131), the annular wall is provided with an opening (05) communicated with the gap, and the opening (05) is positioned on the inner side of the baffle (131).

22. A cleaning machine having a separation module according to any one of claims 1 to 21, characterized in that: a fan (2) is included, the fan (2) being located downstream of the filter element along the fluid flow path.

23. The cleaning machine of claim 22 wherein: the cleaning machine is a sweeper.

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