CN111345731A

CN111345731A - Cyclone separation device and cleaning equipment

Info

Publication number: CN111345731A
Application number: CN202010273737.6A
Authority: CN
Inventors: 周永飞; 许旺龙; 李行
Original assignee: Beijing Rockrobo Technology Co Ltd
Current assignee: Beijing Rockrobo Technology Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-06-30

Abstract

The invention provides a cyclone separation device and cleaning equipment, wherein the cyclone separation device comprises: a separator comprising a first set of cyclone tubes and a second set of cyclone tubes; the first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes; the first set of cyclone tubes comprises at least two first cyclone tubes defining a first longitudinal axis defining an angle with the longitudinal axis of the cyclonic separating apparatus; the second set of cyclone tubes comprises at least two second cyclone tubes defining a second longitudinal axis which is parallel to but not coincident with the longitudinal axis of the cyclonic separating apparatus. This application is through this kind of setting, and the air inlet route is short and business turn over wind efficient, when improving cyclone separation device separation effect, its spatial structure is more compact, has reduced the space that cyclone separation device and cleaning equipment that is provided with this cyclone separation device occupy.

Description

Cyclone separation device and cleaning equipment

Technical Field

The invention relates to the technical field of particle separation from airflow, in particular to a cyclone separation device and cleaning equipment.

Background

The cyclone separator works based on the rotation motion caused by tangential introduction of airflow, and utilizes the fact that when particles rotate at high speed in the airflow, the centrifugal force is far greater than the gravity, and the centrifugal settling velocity obtained by the particles is also greater as the velocity is greater, when the particles containing solid state enter the hammer-shaped cylinder along the direction of the gas self tangent line and rotate in the cylinder, the airflow collides with the wall of the cylinder, the particles impact the wall of the cylinder and rotate and descend, and the purpose of separating the solid from the gas is achieved. Vacuum cleaners which utilise cyclonic separators are known. In a typical cyclone separator, more cyclone tubes are used to improve the separation effect, and the unreasonable distribution of the cyclone tubes causes the cyclone tubes to occupy more space. Therefore, there is a need to develop a compact cyclonic separating apparatus and cleaning apparatus.

Disclosure of Invention

Objects of the invention

The invention aims to provide a cyclone separation device and cleaning equipment to solve the problem of non-compact structure.

(II) technical scheme

To solve the above problems, a first aspect of the present invention provides cyclonic separating apparatus comprising: a separator comprising a first set of cyclone tubes and a second set of cyclone tubes; the first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes; the first set of cyclone tubes comprises at least two first cyclone tubes defining a first longitudinal axis defining an angle with the longitudinal axis of the cyclonic separating apparatus; the second set of cyclone tubes comprises at least two second cyclone tubes defining a second longitudinal axis which is parallel to but not coincident with the longitudinal axis of the cyclonic separating apparatus.

Furthermore, the upper end and the lower end of the first cyclone tube are open, the side wall of the upper end opening of the first cyclone tube is provided with a first air inlet channel, the upper end and the lower end of the second cyclone tube are open, and the side wall of the upper end opening of the second cyclone tube is provided with a second air inlet channel; openings of the first air inlet channel and the second air inlet channel are arranged outwards; the second air inlet channel extends outwards to a position between two adjacent first cyclone tubes, and air inlets of the first air inlet channel and the second air inlet channel are arranged around the outer edge of the separator; the airflow surrounding the separator is guided by the first air inlet channel and the second air inlet channel to rotate to enter the first cyclone pipe and the second cyclone pipe.

Further, a guide plate is arranged on the inner side of each first air inlet channel, all the guide plates are distributed around the longitudinal axis of the separation device in a rotating mode, and all the guide plates are connected between every two adjacent first cyclone tubes.

Further, still include: a collection cover located at the top of the separator; the collecting cover is provided with a flow guide pipe corresponding to the first cyclone pipe and the second cyclone pipe, the upper end and the lower end of the flow guide pipe are open, and the lower end opening of the flow guide pipe extends into the corresponding first cyclone pipe and the second cyclone pipe and is used for guiding out airflow in the first cyclone pipe and the second cyclone pipe from the upper end opening of the flow guide pipe.

Further, the axis defined by the flow guide pipe is coaxial with the axis of the corresponding first cyclone pipe and the second cyclone pipe, and the lower end opening of the flow guide pipe is lower than the openings of the first air inlet passage and the second air inlet passage in the longitudinal direction.

Further, a baffle is arranged at the top of the collecting cover, and the baffle surrounds the upper end opening of the flow guide pipe and is used for collecting the air flow discharged through the upper end opening of the flow guide pipe before the air flow is discharged.

Further, still include: the filter screen is arranged around the separator and used for filtering the airflow entering the first group of cyclone tubes and the second group of cyclone tubes after the first-stage cyclone separation; the top of the filter screen is clamped on the collecting cover; the support frame is arranged at the periphery of the separator and used for clamping the bottom of the filter screen, and the outer edge of the support frame extends downwards to form a skirt-shaped pendulum so as to prevent the granular garbage separated by the first-stage cyclone from moving upwards; the sealing partition plate is arranged on the outer side of the first group of cyclone tubes and is rotationally distributed around the longitudinal axis of the separation device, the sealing partition plate extends outwards in the horizontal direction, and the sealing partition plate is connected with the support frame in a sealing mode.

Further, the separator further includes: the dust collection cover is arranged at the lower part of the separator and is used for collecting the particle garbage discharged through the lower end openings of the first cyclone pipe and the second cyclone pipe; the top cover of the dust collection cover is higher than the lower end openings of the first cyclone tube and the second cyclone tube in the longitudinal direction, the lower end openings of the first cyclone tube and the second cyclone tube extend downwards and penetrate through the top plane of the dust collection cover, and therefore the particulate garbage discharged through the lower end openings of the first cyclone tube and the second cyclone tube is gathered in the dust collection cover.

Further, still include: an air flow guide member disposed outside the first group of cyclone tubes for guiding the air flow passing through the filter screen to the first and second air inlet passages; and/or the airflow guide part is arranged between the filter screen and the second group of cyclone tubes and is used for guiding the airflow passing through the filter screen into the second cyclone tubes.

According to another aspect of the present invention there is provided cyclonic separating apparatus as claimed in any one of the preceding claims.

(III) advantageous effects

The technical scheme of the invention has the following beneficial technical effects:

this application is through setting up the different inclination of first whirlwind pipe and cyclone separation device's longitudinal axis and the second whirlwind pipe is parallel with cyclone separation device's longitudinal axis, and first inlet channel and second inlet channel set up around the separator outer fringe, and the air inlet route is short and business turn over wind efficient, when improving cyclone separation device separation effect, its spatial structure is more compact, has reduced the space that cyclone separation device and the cleaning equipment who is provided with this cyclone separation device occupy.

Drawings

FIG. 1 is a schematic view of a cyclonic separating apparatus according to a first embodiment of the invention;

FIG. 2 is a schematic perspective view of a separator in an embodiment of the invention;

FIG. 3 is a schematic perspective view of a cyclonic separating apparatus in an embodiment of the present invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic perspective view of the manifold cap;

FIG. 6 is a schematic perspective view of a cleaning apparatus provided in an embodiment of the present invention;

FIG. 7 is an exploded view of FIG. 6;

FIG. 8 is a schematic longitudinal sectional view of a cleaning apparatus according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of the bottom cover of FIG. 7;

fig. 10 is a bottom view of the breakaway cover of fig. 7.

Reference numerals:

a: a first longitudinal axis; b: a second longitudinal axis; z: a longitudinal axis of the cyclonic separating apparatus; 10: a separator; 11: a first cyclone tube; 111: a first air intake passage; 112: a baffle; 12: a second cyclone tube; 121: a second intake passage; 13: sealing the partition plate; 14: a dust collection cover; 20: a collection cover; 21: a flow guide pipe; 22: a baffle plate; 30: a filter screen; 40: a support frame; 50: a separation hood; 51: an air inlet; 52: an air outlet; 53: clamping the bulges; 60: a bottom cover; 61: a seal ring; 62: a gasket; 70: a separation chamber; 80: a collection chamber.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the drawings a schematic view of a layer structure according to an embodiment of the invention is shown. The figures are not drawn to scale and certain details may be omitted. The shapes of various regions, layers, and relative sizes and positional relationships therebetween shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, as actually required.

It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a cyclone separating apparatus according to a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a separator according to an embodiment of the present invention.

In a first embodiment of the present application, as shown in figures 1-2, cyclonic separating apparatus is provided which generally comprises a separator 10. The separator 10 comprises a first set of cyclone tubes and a second set of cyclone tubes. The first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis Z of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes.

The first set of cyclone tubes comprises at least two first cyclone tubes 11, the first cyclone tubes 11 defining a first longitudinal axis a, the first longitudinal axis a defining an angle with the longitudinal axis Z of the cyclonic separating apparatus.

The second set of cyclone tubes comprises at least two second cyclone tubes 12, the second cyclone tubes 12 defining a second longitudinal axis B, the second longitudinal axis B being parallel to but not coincident with the longitudinal axis Z of the cyclonic separating apparatus.

In the exemplary embodiment, the first longitudinal axis A forms an angle with the longitudinal axis Z of the cyclonic separating apparatus in the range 6-20.

In the exemplary embodiment, second air intake passage 121 opens higher than first air intake passage 111 in the longitudinal direction.

In some embodiments, the first cyclone tube 11 has an opening at the upper and lower ends, the first cyclone tube 11 has a first air inlet passage 111 at the side wall of the opening at the upper end, the second cyclone tube 12 has an opening at the upper and lower ends, and the second cyclone tube 12 has a second air inlet passage 121 at the side wall of the opening at the upper end.

The openings of the first air inlet channel 111 and the second air inlet channel 121 are both arranged outwards, the second air inlet channel 121 extends outwards to a position between two adjacent first cyclone tubes 11, and the air inlets of the first air inlet channel 111 and the second air inlet channel 121 are arranged around the outer edge of the separator 10; the airflow around the separator 10 is caused to rotate into the first and

second cyclone tubes

11 and 12, guided by the first and second

air inlet paths

111 and 121.

In some embodiments, the inner side of each first air inlet passage 111 is provided with a baffle 112, all baffles 112 are distributed rotationally around the longitudinal axis Z of the separation device, and all baffles 112 are connected between two adjacent first cyclone tubes 11.

Fig. 3 is a schematic perspective view of a cyclone separation apparatus according to an embodiment of the present invention.

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is a perspective view of the collection cover.

As shown in fig. 3-5, in some embodiments, the cyclonic separating apparatus further comprises a collecting cover 20. The collection cover 20 is located on top of the separator 10; the collecting cover 20 is provided with a flow guide tube 21 corresponding to the first cyclone tube 11 and the second cyclone tube 12, the upper end and the lower end of the flow guide tube 21 are open, and the lower end opening of the flow guide tube 21 extends into the corresponding first cyclone tube 11 and the second cyclone tube 12, so as to guide the airflow in the first cyclone tube 11 and the second cyclone tube 12 out of the upper end opening of the flow guide tube 21.

In some embodiments, the flow guide tube 21 defines an axis coaxial with the axes of the first cyclone tube 11 and the second cyclone tube 12, and the lower opening of the flow guide tube 21 is lower than the openings of the first air inlet channel 111 and the second air inlet channel 121 in the longitudinal direction, so that the flow guide tube 21 can assist in forming a cyclone when the airflow enters the flow guide tube 21 from the lower opening of the flow guide tube 21, thereby improving the cyclone separation effect and facilitating the separation of particulate garbage.

In some embodiments, the top of the collecting cover 20 is provided with a baffle 22, and the baffle 22 is disposed to surround the upper end opening of the draft tube 21 for collecting the air flow discharged through the upper end opening of the draft tube 21 before the air flow is discharged.

In some embodiments, the cyclonic separating apparatus further comprises a filter screen 30. The filter screen 30 is disposed around the separator 10 and is used for filtering the airflow entering the first set of cyclone tubes and the second set of cyclone tubes after the first-stage cyclone separation; the top of the filter screen 30 is clamped on the collecting cover 20;

the cyclonic separating apparatus also comprises a support frame 40. The supporting frame 40 is arranged at the periphery of the separator 10 and used for clamping the bottom of the filter screen 30, and the outer edge of the supporting frame 40 extends downwards to form a skirt-shaped pendulum so as to prevent the granular garbage which is separated by the first stage cyclone from moving upwards.

The separator also comprises a sealing diaphragm 13. The sealing partition plate 13 is arranged outside the first group of cyclone tubes and is rotationally distributed around the longitudinal axis Z of the separation device, the sealing partition plate 13 extends outwards in the horizontal direction, and the sealing partition plate 13 is connected with the support frame 40 in a sealing mode.

In some embodiments, the separator 10 further comprises a dust cage 14. The dust cage 14 is disposed at a lower portion of the separator 10 for collecting particulate garbage discharged through lower end openings of the first and

second cyclone tubes

11 and 12; the top cover of the dust collection cover 14 is disposed higher than the lower end openings of the first and

second cyclone tubes

11 and 12 in the longitudinal direction, the lower end openings of the first and

second cyclone tubes

11 and 12 extend downward and penetrate through the top plane of the dust collection cover 14, so that the particulate garbage discharged through the lower end openings of the first and

second cyclone tubes

11 and 12 is collected in the dust collection cover 14.

In some embodiments, the cyclonic separating apparatus further comprises airflow directing means. The airflow guide member is disposed outside the first group of cyclone tubes, and guides the airflow passing through the filter 30 to the first and second

air inlet passages

111 and 121; and/or, an airflow guide member is disposed between the filter screen 30 and the second set of cyclone tubes for guiding the airflow passing through the filter screen 30 into the second cyclone tube 12.

In some embodiments, an airflow guide member is disposed between the filter screen 30 and the second set of cyclone tubes for guiding the airflow passing through the filter screen 30 into the second cyclone tube 12.

In some embodiments, the number of the first cyclone tubes 11 is X, and the number of the second cyclone tubes 12 is Y; wherein, X is nY, and n is more than or equal to 2.

In some embodiments, one second air inlet passage 121 is provided every n first cyclone tubes 11.

Before the airflow passes through the filter screen 30, large-particle garbage is separated through first-stage cyclone separation, the airflow filtered by the filter screen 30 enters the corresponding first cyclone tube 11 and second cyclone tube 12 from top to bottom under the guidance of the first air inlet channel 111 and the second air inlet channel 121, and second-stage cyclone separation is performed to separate small-particle garbage; the separated small particle garbage is discharged through the lower end openings of the first cyclone tube 11 and the second cyclone tube 12; the separated air flow is guided to the top of the collecting cover 20 through the upper port of the draft tube 21, and is discharged after being collected.

In one exemplary embodiment of the present application, a cyclonic separating apparatus is provided which generally comprises a separator 10. The separator 10 has a tapered body with a large upper end and a small lower end. The separator 10 defines a longitudinal axis Z of the cyclonic separating apparatus. The separator 10 comprises a first set of cyclone tubes and a second set of cyclone tubes. The first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis Z of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes.

The first set of cyclone tubes comprises at least two first cyclone tubes 11. The first cyclone tube 11 is a tapered tube having a large upper end and a small lower end, and is provided with an upper end opening and a lower end opening. The upper end opening side wall of the first cyclone tube 11 is provided with a first air inlet passage 111, the first air inlet passage 111 and the upper end opening side wall of the first cyclone tube 11 are arranged tangentially, and the first air inlet passage 111 is used for guiding airflow to enter the first cyclone tube 11 tangentially so as to improve the cyclone separation effect of the first cyclone tube 11. The first cyclone tube 11 defines a first longitudinal axis a which forms an angle of 16 ° with the longitudinal axis Z of the cyclonic separating apparatus.

The second set of cyclone tubes comprises at least two second cyclone tubes 12. The second cyclone tube 12 is a tapered tube with a large upper end and a small lower end, and is provided with an upper end opening and a lower end opening, the side wall of the upper end opening of the second cyclone tube 12 is provided with a second air inlet passage 121, and the second air inlet passage 121 and the side wall of the upper end opening of the second cyclone tube 12 are tangentially arranged.

The second air inlet path 121 extends outward to between two adjacent first cyclone tubes 11 for guiding the airflow tangentially into the second cyclone tubes 12 to improve the separation effect of the second cyclone tubes 12, and the air inlets of the first air inlet path 111 and the second air inlet path 121 are arranged around the outer edge of the separator 10. The second cyclone tube 12 defines a second longitudinal axis B which is parallel to but not coincident with the longitudinal axis Z of the cyclonic separating apparatus.

The openings of the first air inlet passage 111 and the second air inlet passage 121 are both arranged outwards, and the opening of the second air inlet passage 121 is slightly higher than the opening of the first air inlet passage 111. The airflow circulating the separator 10 is guided by the first and second

air inlet paths

111 and 121 to be rotated into the first and

second cyclone tubes

11 and 12.

Each first air inlet passage 111 is arranged tangentially to the open upper end sidewall of the first cyclone tube 11, all the first air inlet passages 111 being distributed rotationally about the longitudinal axis Z of the separation device. A baffle 112 is provided inside the first air intake passage 111. The baffle 112 is connected between two adjacent first cyclone tubes 11, and connected to the outer sidewall of the adjacent first air inlet path 111.

The second air inlet passage 121 is opened higher than the first air inlet passage 111 in a longitudinal direction for guiding airflows of different heights into the corresponding cyclone pipes to improve the separation effect, and the length of the first air inlet passage 111 is smaller than that of the second air inlet passage 121. The second air inlet channel 121 includes an inclined section and a straight section, a port of one end of the inclined section away from the straight section is an opening of the second air inlet channel 121, and one end of the inclined section away from the straight section is lower than the straight section. The airflow around the separator 10 passes through the first and second

air inlet paths

111 and 121 and enters the first and

second cyclone tubes

11 and 12.

The plurality of second cyclone tubes 12 are symmetrically distributed along the longitudinal axis Z of the cyclone separation device, the upper openings of the second cyclone tubes 12 are arranged upwards, and the edges of the upper openings of all the second cyclone tubes 12 are arranged on a first horizontal plane in the longitudinal direction; the plurality of first cyclone tubes 11 are symmetrically distributed along the longitudinal axis Z of the cyclone separation device, the upper end openings of the first cyclone tubes 11 are arranged obliquely upwards, the highest position of the edge of the upper end opening of the first cyclone tube 11 is arranged on the first level, and the lowest position of the edge of the upper end opening of the first cyclone tube 11 is arranged on the second level.

The diameters of the upper end openings of the first cyclone tube 11 and the second cyclone tube 12 are the same, and the diameters of the lower end openings of the first cyclone tube 11 and the second cyclone tube 12 are the same. The relevant parameters of the first cyclone tube 11 and the second cyclone tube 12 can be adjusted adaptively according to actual requirements, and the application is not limited in particular. Relevant parameters of the first cyclone tube 11 and the second cyclone tube 12 include, but are not limited to, the sizes of the opening diameters of the upper end opening and the lower end opening of the first cyclone tube 11 and the second cyclone tube 12, the lengths of the first cyclone tube 11 and the second cyclone tube 12, the distance between the first cyclone tube 11 and the second cyclone tube 12, the length of the first air inlet passage 111 and the second air inlet passage 121, the arrangement angle and the included angle between the first air inlet passage 111 and the second air inlet passage 121, the relative heights of the openings of the first air inlet passage 111 and the second air inlet passage 121, and the like.

The cyclonic separating apparatus further comprises a filter screen 30 and a support frame 40. The outer side of the filter screen 30 is provided with a first-stage cyclone separation for separating larger particle garbage from the airflow, and the filter screen 30 is used for the airflow entering the first group of cyclone tubes and the second group of cyclone tubes after the first-stage cyclone separation. The metal filter screen 30 is preferably adopted as the filter screen 30, so that the service life can be prolonged, and the filtering effect is improved. The filter screen 30 is an annular screen, the support frame 40 is used for clamping the bottom of the filter screen 30, and the top of the filter screen 30 is clamped on the lower surface of the collecting cover 20 positioned on the top of the separator 10, so that the filter screen 30 is arranged to surround the separator 10. The particulate garbage filtered by the filtering net 30 is gathered under the supporting frame 40, the outer edge of the supporting frame 40 extends downwards to form a skirt-pendulum shape, and the supporting frame 40 prevents the particulate garbage which has passed through the first stage cyclone separation from moving upwards.

The separator 10 also includes a sealing baffle 13. The sealing baffle 13 is an annular plate and is arranged outside the first set of cyclone tubes in a rotational distribution about the longitudinal axis Z of the separation device for sealing the airflow through the filter screen 30. And is lower than the openings of the first and

second intake passages

111 and 121 in the longitudinal direction. The sealing partition 13 extends outwards in the horizontal direction, the sealing partition 13 and the bottom (lower edge) of the filter screen 30 are at the same level or almost the same level, and the sealing partition 13 is connected and sealed with the support frame 40. The filter screen 30, the support frame 40, the sealing partition 13 and the collecting cover 20 form a sealed space to seal the air flow passing through the filter screen 30. Depending on the actual situation, the sealing partition 13 and the bottom of the filter screen 30 may not be on the same horizontal plane.

The collecting cover 20 is a disk shape, and a duct 21 corresponding to the first cyclone tube 11 and the second cyclone tube 12 is provided thereon. The draft tube 21 longitudinally penetrates through the collecting cover 20 and extends downwards, the upper end opening of the draft tube 21 is flush with the upper surface of the collecting cover 20, and the lower end opening of the draft tube 21 extends into the first cyclone tube 11 and the second cyclone tube 12.

The draft tube 21 corresponds to the upper end openings of all the cyclone tubes; the draft tube 21 defines an axis coaxial with the axis of the corresponding cyclone tube. The lower end of the draft tube 21 is lower than the openings of the first air inlet channel 111 and the second air inlet channel 121 in the longitudinal direction, so that the airflow after the particulate garbage is separated in the first cyclone tube 11 and the second cyclone tube 12 is guided into the draft tube 21 and guided to the top of the collecting cover 20, and meanwhile, the draft tube 21 can also assist in forming a cyclone, thus improving the cyclone separation effect and facilitating the separation of the particulate garbage.

The collecting cover 20 is vertically provided with a U-shaped baffle 22 on the upper surface thereof along the air outlet end (upper end opening) of the draft tube 21, and the baffle 22 surrounds the upper end opening of the draft tube 21 and collects the air flow guided out through the upper end opening of the draft tube 21 before the air flow is discharged.

The bottom of the separator 10 is provided with a dust cage 14. The dust cage 14 serves to collect particulate debris separated from the airflow entering the separator 10. The dust cage 14 includes a top cover and sidewalls. The height of the top cover is higher than the lower end openings of the first cyclone tube 11 and the second cyclone tube 12, that is, the lower end openings of the first cyclone tube 11 and the second cyclone tube 12 penetrate through the top cover of the dust collection cover 14, the lower ends of the first cyclone tube 11 and the second cyclone tube 12 extend downwards, the dust collection cover 14 surrounds the lower end openings of the first cyclone tube 11 and the second cyclone tube 12, and the particulate garbage is discharged from the lower end openings of the first cyclone tube 11 and the second cyclone tube 12, so that the centralized processing is facilitated.

The cyclonic separating apparatus may also include airflow directing means, such as airflow baffles. An airflow guide member may be provided outside the first group of cyclone tubes for guiding the airflow passing through the filter mesh 30 to the airflow inlet of each cyclone tube; the airflow guide member may also be disposed between the filter 30 and the second set of cyclone tubes to guide the airflow passing through the filter 30 into the second cyclone tube 12. The airflow baffle serves to increase the tangential speed of the cyclone tube into which the airflow passing through the filter 30 enters, i.e., to form a stable rotating airflow before entering the cyclone tube, thereby improving the separation effect.

In another embodiment, the number of the first cyclone tubes 11 is X, and the number of the second cyclone tubes 12 is Y, where X is nY, and n is greater than or equal to 2, that is, the number of the first cyclone tubes 11 is not an integer multiple of 1 of the number of the second cyclone tubes 12. The cyclone tubes of the first group of n cyclone tubes are spaced to provide a second air inlet path 121 of the second cyclone tube 12. For example, the number of the first cyclone tubes 11 is 10, the number of the second cyclone tubes 12 is 5, and a second air inlet path 121 of the second cyclone tube 12 needs to be reserved between every two first cyclone tubes 11; the number of the first cyclone tubes 11 is 8, the number of the second cyclone tubes 12 is 2, and a second air inlet path 121 of the second cyclone tube 12 needs to be reserved between every 4 first cyclone tubes 11.

Before the airflow passes through the filter screen 30, the airflow is subjected to first-stage cyclone separation, the separated large-particle garbage is blocked, and the airflow filtered by the filter screen 30 enters the corresponding first cyclone tube 11 and second cyclone tube 12 from top to bottom under the guidance of the first air inlet channel 111 and the second air inlet channel 121 to be subjected to second-stage cyclone separation so as to separate small-particle garbage; the separated small particle garbage is discharged through the lower end openings of the first cyclone tube 11 and the second cyclone tube 12 and enters the dust collection cover 14; the separated air flow is guided to the top of the collecting cover 20 through the upper port of the draft tube 21, and is discharged after being collected.

This application is through setting up the different inclination of first whirlwind pipe and cyclone separation device's longitudinal axis and the second whirlwind pipe is parallel with cyclone separation device's longitudinal axis, and first inlet channel and second inlet channel set up around the separator outer fringe, and the air inlet route is short and business turn over wind efficient, when improving cyclone separation device separation effect, its spatial structure is more compact, has reduced the space that cyclone separation device occupy.

According to another aspect of the present application, in an embodiment thereof, there is also provided a cleaning appliance comprising cyclonic separating apparatus according to any one of the preceding claims.

The cleaning device may be a cylinder vacuum cleaner but may also be adapted for other types of vacuum cleaners, such as hand-held cleaners, sweeping robots. Moreover, the solution of the present application is also applicable to other types of cleaning equipment, such as wet and dry machines or carpet washers, general surface treatment equipment, such as polishing/waxing machines, pressure washers, floor marking machines and lawn mowers.

Fig. 6 is a schematic perspective view of a cleaning device provided in an embodiment of the present invention.

Fig. 7 is an exploded view of fig. 6.

Fig. 8 is a schematic longitudinal sectional view of a cleaning device according to an embodiment of the present invention.

In one exemplary embodiment of the present application, as shown in fig. 6-8, a cleaning apparatus is provided. It mainly comprises a separating hood 50, a bottom cover 60 and a cyclonic separating apparatus according to any one of the preceding claims.

The separating hood 50 is cylindrical in shape and includes a top cover and a side wall. The bottom cover 60 has a disk shape and is fitted to the separation cap 50.

Fig. 9 is a schematic structural view of the bottom cover in fig. 7.

As shown in fig. 9, the upper surface of the bottom cover 60 is provided with a sealing ring 61 along the edge of the bottom cover 60 to achieve a sealing connection with the bottom of the separation cover 50. The middle part of the bottom cover 60 is further provided with a sealing gasket 62, the sealing gasket 52 is matched with the bottom part of the dust collection cover 3, and the sealing gasket 62 is hermetically connected with the bottom part of the dust collection cover 50, so that the small particle garbage separated from the separator 10 is gathered in the dust collection cover 3.

The bottom cap 60 and the separation cap 50 define a separation chamber 70. The separating chamber 70 is provided with cyclonic separating apparatus according to any one of the preceding aspects. The cyclone separation device mainly comprises a collecting cover 20, a cyclone tube group and a dust collecting cover 14 from top to bottom, wherein the cyclone tube group comprises a first group of cyclone tubes and a second group of cyclone tubes.

The side wall of the separation hood 50 is provided with an air inlet 51 and an air outlet 52. The air outlet 52 is provided at an upper portion of a sidewall of the separation cover 50, and the air outlet 52 is provided higher than the air inlet 51 in a longitudinal height. The air inlet 51 may be provided with a suction nozzle, such as a suction nozzle of a vacuum cleaner, which has a tangential air inlet passage with respect to the separating hood 50, so that the incoming air flow forms a tangential air flow, i.e. the air flow enters the separating hood 50 tangentially.

The air inlet 51 is arranged tangentially relative to the separating hood 50 to enable the air flow to enter the separating hood 50 tangentially, so that the first stage of cyclone separation is realized, and larger particle garbage is separated and accumulated on the bottom cover 60. The air flow after the first stage cyclone separation passes through the filter screen 30 and the cyclone tube group in a rotating manner to realize the second stage cyclone separation, and then is discharged after passing through the collecting cover 20. The particulate waste in the airflow is separated into the dust cage 14 by the second stage cyclonic separation.

Fig. 10 is a bottom view of the breakaway cover of fig. 7.

As shown in fig. 10, the upper portion of the inner wall of the separation cover 50 is further provided with three engaging protrusions 53 adapted to the collecting cover 20 for rotationally engaging with the collecting cover 20, so that the collecting cover 20 is disposed at the upper portion of the inside of the separation cover 50, near the top cover of the separation cover 50.

The collecting cover 20, the baffle plate 22 of the collecting cover 20 and the top cover of the separating cover 50 form a collecting cavity 80, the baffle plate 22 corresponds to the air outlet 52, namely the air outlet 52 is arranged at the opening of the U-shaped baffle plate 22, so that the collected air flow is discharged from the air outlet 52.

A hinged part is arranged at the bottom of the separation cover 50 opposite to the bottom cover 60, so that the separation cover 50 is detachably connected with the bottom cover 60. When the separated particle garbage (the particle garbage located in the separation chamber 70, on the bottom cover 60 and in the dust collection cover 14) needs to be discharged, the separation cover 50 is directly separated from the bottom cover 60.

The technical scheme of the application has the following beneficial technical effects:

according to the cyclone separation device, the first cyclone pipe 11 and the cyclone separation device are arranged at different inclination angles of the longitudinal axis, the second cyclone pipe 12 is parallel to the longitudinal axis of the cyclone separation device, the first air inlet channel 111 and the second air inlet channel 121 are arranged around the outer edge of the separator 10, the air inlet path is short, the air inlet efficiency and the air outlet efficiency are high, the separation effect of the cyclone separation device is improved, the space structure is more compact, and the space occupied by the cyclone separation device and the cleaning equipment provided with the cyclone separation device is reduced.

The invention has been described above with reference to embodiments thereof. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the invention, and these alternatives and modifications are intended to be within the scope of the invention.

Claims

1. Cyclonic separating apparatus, comprising:

a separator (10) comprising a first set of cyclone tubes and a second set of cyclone tubes;

the first group of cyclone tubes and the second group of cyclone tubes are distributed around the longitudinal axis (Z) of the cyclone separation device respectively, and the first group of cyclone tubes surrounds the second group of cyclone tubes;

the first set of cyclone tubes comprises at least two first cyclone tubes (11), the first cyclone tubes (11) defining a first longitudinal axis (A), the first longitudinal axis (A) defining an angle with a longitudinal axis (Z) of the cyclonic separating apparatus;

the second set of cyclone tubes comprises at least two second cyclone tubes (12), the second cyclone tubes (12) defining a second longitudinal axis (B), the second longitudinal axis (B) being parallel to but not coincident with the longitudinal axis (Z) of the cyclonic separating apparatus.

2. The cyclone separation device according to claim 1, wherein the first cyclone tube (11) is open at the upper and lower ends, the side wall of the first cyclone tube (11) open at the upper end is provided with a first air inlet passage (111), the second cyclone tube (12) is open at the upper and lower ends, and the side wall of the second cyclone tube (12) open at the upper end is provided with a second air inlet passage (121);

the openings of the first air inlet channel (111) and the second air inlet channel (121) are arranged outwards; the second air inlet channel (121) extends outwards to a position between two adjacent first cyclone tubes (11), and air inlets of the first air inlet channel (111) and the second air inlet channel (121) are arranged around the outer edge of the separator (10);

rotating an airflow around the separator (10) into the first and second cyclone tubes (11, 12) under guidance of the first and second intake passages (111, 121).

3. The separation device according to claim 2, wherein a baffle (112) is arranged inside each first air inlet channel (111), all baffles (112) are distributed in a rotating manner around the longitudinal axis (Z) of the separation device, and all baffles (112) are connected between two adjacent first cyclone tubes (11).

4. Cyclonic separating apparatus as claimed in claim 1, further comprising:

a collection cover (20) located on top of the separator (10);

the collecting cover (20) is provided with a flow guide pipe (21) corresponding to the first cyclone pipe (11) and the second cyclone pipe (12), the upper end and the lower end of the flow guide pipe (21) are open, and the lower end opening of the flow guide pipe (21) extends into the corresponding first cyclone pipe (11) and the second cyclone pipe (12) and is used for guiding out the airflow in the first cyclone pipe (11) and the second cyclone pipe (12) from the upper end opening of the flow guide pipe (21).

5. Cyclonic separating apparatus as claimed in claim 4,

the flow guide pipe (21) defines an axis which is coaxial with the axes of the corresponding first cyclone pipe (11) and the second cyclone pipe (12), and the lower end opening of the flow guide pipe (21) is lower than the openings of the first air inlet passage (111) and the second air inlet passage (121) in the longitudinal direction.

6. Cyclonic separating apparatus as claimed in claim 5,

the top of the collection cover (20) is provided with a baffle plate (22), and the baffle plate (22) surrounds the upper end opening of the draft tube (21) and is used for collecting the air flow discharged through the upper end opening of the draft tube (21) before the air flow is discharged.

7. Cyclonic separating apparatus as claimed in any one of claims 4 to 6, further comprising:

the filter screen (30) is arranged around the separator (10) and is used for filtering the airflow entering the first group of cyclone tubes and the second group of cyclone tubes after the first-stage cyclone separation; the top of the filter screen (30) is clamped on the collection cover (20);

the supporting frame (40) is arranged at the periphery of the separator (10) and used for clamping the bottom of the filter screen (30), and the outer edge of the supporting frame (40) extends downwards to form a skirt-pendulum shape so as to prevent the granular garbage which is separated by the first-stage cyclone from moving upwards;

the sealing partition plate (13) is arranged outside the first group of cyclone tubes and rotationally distributed around the longitudinal axis (Z) of the separation device, the sealing partition plate (13) extends outwards in the horizontal direction, and the sealing partition plate (13) is connected with the support frame (40) in a sealing mode.

8. Cyclonic separating apparatus as claimed in claim 1, wherein the separator (10) further comprises:

a dust cage (14) disposed at a lower portion of the separator (10) for collecting particulate garbage discharged through lower end openings of the first and second cyclone tubes (11, 12);

the top cover of the dust collection cover (14) is arranged higher than the lower end openings of the first cyclone tube (11) and the second cyclone tube (12) in the longitudinal direction, the lower end openings of the first cyclone tube (11) and the second cyclone tube (12) extend downwards and penetrate through the top plane of the dust collection cover (14), and therefore particulate garbage discharged through the lower end openings of the first cyclone tube (11) and the second cyclone tube (12) is gathered in the dust collection cover (14).

9. Cyclonic separating apparatus as claimed in claim 1, further comprising:

an air flow guide member disposed outside the first group of cyclone tubes for guiding the air flow passing through the filter screen (30) to the first and second air intake passages (111, 121); and/or the airflow guide part is arranged between the filter screen (30) and the second group of cyclone tubes and is used for guiding the airflow passing through the filter screen (30) into the second cyclone tubes (12).

10. A cleaning apparatus, comprising: cyclonic separating apparatus as claimed in any one of claims 1 to 9.