CN212679026U - Dust catcher wind path subassembly and cleaning device - Google Patents

Abstract

The utility model provides a dust catcher wind path subassembly and cleaning device, wherein, a dust catcher wind path subassembly mainly includes first cyclone subassembly, second cyclone subassembly and filtering component. Wherein the second cyclone assembly is provided with a depression space; the air current circulates the first cyclone assembly, the second cyclone assembly and the filtering assembly in sequence, the air inlet path is short, the air inlet and outlet efficiency is high, the space structure of the dust collector is more compact, and the occupied space of the air path assembly of the dust collector and the cleaning equipment is reduced.

Description

Dust catcher wind path subassembly and cleaning device

Technical Field

The utility model relates to a dust catcher technical field, in particular to dust catcher wind path subassembly 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. Dust collectors using cyclonic separators are known and the separation is further enhanced by the cooperation of a fan and a screen after separation in the cyclonic separator. In the prior art, the airflow duct is not designed reasonably, and the structure of the corresponding duct assembly is not compact, so that a shell and a cleaning device with compact structure are needed to be researched.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

The utility model aims at providing a dust catcher wind path subassembly and cleaning device solve the not compact problem of dust catcher structure.

(II) technical scheme

In order to solve the above problem, a first aspect of the present invention provides a dust collector air path assembly, including: a first cyclone assembly; a second cyclone assembly provided with a depressed space; a filter assembly.

Further, the second cyclone assembly includes: an inner ring cyclone tube group; an outer ring cyclone tube group; the inner ring cyclone tube group and the outer ring cyclone tube group respectively comprise a plurality of cyclone tubes; the air outlet end of the inner ring cyclone tube group is recessed in the air outlet end of the outer ring cyclone tube group to form the recessed space, and the recessed space is used for accommodating a part of the dust cleaning mechanism.

Further, the outer ring cyclone tube group comprises: the cyclone tube sets are arranged at intervals to form reserved intervals.

Further, the second cyclone assembly further comprises: and the sealing sleeve is sleeved on the outer sides of the dust exhaust ends of the outer ring cyclone pipe group and the inner ring cyclone pipe group and is used for sealing the airflow entering the second cyclone assembly to flow to the dust exhaust ends of the inner ring cyclone pipe group and the outer ring cyclone pipe group.

Further, the second cyclone assembly further comprises: the cyclone tube cover is arranged to cover the air outlet ends of all the cyclone tubes, and a flow guide tube extending into each cyclone tube is arranged on the cyclone tube cover; the air inlet of the cyclone tube is arranged on the side wall of each cyclone tube; the air inlet end of the flow guide pipe is closer to the dust exhaust end of the cyclone pipe relative to the air inlet along the axial direction of the flow guide pipe.

Further, the first cyclone assembly comprises: stainless steel filter screen, at least part encircle the setting of second cyclone subassembly, the dirt bucket, the bucket wall of dirt bucket encircles the stainless steel filter screen, the bucket wall of dirt bucket with form annular cyclone flow channel between the stainless steel filter screen.

Further, still include: a fan assembly; the filter assembly includes: a pre-filter screen for filtering airflow from the second cyclone assembly to the fan assembly; and the rear filter screen is used for filtering the airflow discharged by the fan assembly.

Furthermore, the front filter screen and the rear filter screen are annular cylindrical filter screens; leading filter screen encircles the air intake of fan subassembly, rearmounted filter screen encircles the air outlet of fan subassembly makes the air current follow leading filter screen with the radial flow of rearmounted filter screen.

Further, the air outlet is arranged on the periphery or the top of the fan assembly and used for discharging airflow out of the dust collector.

According to another aspect of the present invention, there is provided a cleaning device, comprising the dust collector air path assembly of any one of the above aspects.

(III) advantageous effects

The above technical scheme of the utility model has following profitable technological effect:

the air current circulates the first cyclone assembly, the second cyclone assembly and the filtering assembly in sequence, the air inlet path is short, the air inlet and outlet efficiency is high, the space structure of the dust collector is more compact, and the occupied space of the air path assembly of the dust collector and the cleaning equipment is reduced.

Drawings

FIG. 1 is a block diagram of a filter assembly according to a first embodiment of the present invention;

fig. 2 is an air diagram of a filter assembly according to a first embodiment of the present invention;

fig. 3 is a structural diagram of a rear filter screen according to a first embodiment of the present invention;

FIG. 4 is a block diagram of a dust cleaning mechanism according to a second embodiment of the present invention;

FIG. 5 is a gear box installation schematic view of a dust cleaning mechanism of a second embodiment provided by the present invention;

fig. 6 is a gear rack mounting schematic view of a dust cleaning mechanism according to a second embodiment of the present invention;

fig. 7 is a partial enlarged view based on fig. 6;

fig. 8 is a schematic structural view of a cover opening mechanism of a dust cleaning mechanism according to a second embodiment of the present invention;

fig. 9 is a schematic structural view of a cyclone separation device according to a third embodiment of the present invention;

FIG. 10 is a top view of FIG. 9;

fig. 11 is a schematic structural view of a cyclone tube cover according to a third embodiment of the present invention;

fig. 12 is a schematic structural view of a sealing sleeve according to a third embodiment of the present invention;

fig. 13 is a schematic structural view of a third embodiment of the isolation cover provided by the present invention;

fig. 14 is a schematic structural view of a stainless steel screen according to a third embodiment of the present invention;

fig. 15 is a schematic structural view of a dust collecting container according to a third embodiment of the present invention;

fig. 16 is a schematic structural view of a cover for a cyclonic separating apparatus according to a third embodiment of the invention;

fig. 17 is a schematic view of an airflow path according to a fourth embodiment of the present invention.

Reference numerals:

a-inner ring cyclone tube group; a-an internal cyclone tube; b-an outer ring cyclone tube group; b-an external cyclone pipe; c-reserving intervals; e-an axial bevel gear; f-a radial bevel gear;

1-cyclone tube cover; 101-a draft tube; 102-a housing sleeve; 103-a groove;

2-sealing sleeve; 201-a cannula;

3-a shell; 4-a fan assembly; 401-an air inlet; 402-air outlet; 5-a front filter screen; 6-post filter screen; 61-round top; 62-an annular cylinder; 601-dust bucket; 602-a dust bin cover;

7-a drive mechanism; 8-a gearbox; 801-output shaft; 802-gear; 9-scraping the ash body; 901-a first putty scraping strip; 902-a second putty scraping strip; 10-stainless steel filter screen; 11-a slide block; 12-a push rod; 13-screwing; 14-hanging hooks; 15-a rack; 16-vibrating mass 17-cage; 1701-installing a groove; 18-a dust collecting cylinder; 1801-an annular connection; 1802-sealing the connection.

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 detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative 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.

A schematic diagram of a layer structure according to an embodiment of the invention is shown in the drawing. 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 some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can 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.

In the first embodiment of the present invention, the present invention further provides a filter assembly, which is disposed on the top of the dust barrel 601 of the dust collector and is located above the cyclone separation device. The filter assembly includes: the device comprises a shell 3, a fan assembly 4, a front filter screen 5 and a rear filter screen 6; a fan assembly 4 is arranged in the shell 3; the front filter screen 5 is arranged at an air inlet 401 of the fan assembly 4 to filter the air flow entering the fan assembly 4, and the air inlet 401 is arranged around the fan assembly 4; the rear filter screen 6 is disposed at an air outlet 402 of the fan assembly 4 to filter the air flow flowing out of the fan assembly 4, and the air outlet 402 is disposed along an axial direction of the fan assembly 4 and/or along a radial direction of the fan assembly 4.

Fig. 1 is a block diagram of a filter assembly according to a first embodiment of the present invention.

Fig. 2 is an air diagram of a filter assembly according to a first embodiment of the present invention.

Specifically, referring to fig. 1 and 2, after the air flow flows in from below the fan assembly 4, the air flow flows out from above the fan assembly 4. An air inlet 401 is arranged below the fan assembly 4, and an air outlet 402 is arranged above the fan assembly 4. The fan assembly 4 further comprises a fan and blades, the fan is arranged at the air inlet 401, the blades are arranged at the air outlet 402, therefore, the front filter screen 5 is sleeved on the periphery of the fan, and the rear filter screen 6 is arranged along the circumferential direction of the blades.

Meanwhile, the air inlet 401 is disposed at a position close to the airflow passing surface, so that the airflow entering the fan assembly 4 directly flows in without going around other curves in the apparatus, thereby reducing the airflow passing path. The airflow flows out in the radial direction from the upper part of the fan assembly 4 directly after passing through the fan assembly 4.

As shown in figure 2, the airflow flows towards the outer ring of the preposed filter screen 5, enters the fan after passing through the preposed filter screen 5, then flows out of the fan towards the blades, further flows towards the postposition filter screen 6 and finally flows out of the dust collector. In fig. 2, the air flows out from the opening on the side of the housing 3; alternatively, the air flow may also exit through an opening provided in the top of the housing 3.

In some embodiments, the air inlet 401 is disposed on a side wall of the fan assembly 4 and disposed around the fan of the fan assembly 4, and the air outlet 402 is disposed on a side wall of the fan assembly 4 and disposed along an axial direction of a blade of the fan assembly 4; at this time, the front filter screen 5 is set to be an annular cylindrical body and sleeved on the periphery of the air inlet 401, the rear filter screen 6 is also set to be an annular cylindrical body and arranged along the circumferential direction of the blades of the fan assembly 4, and airflow flows in from the side wall below the fan assembly 4 and flows out from the side wall above the fan assembly 4.

In some embodiments, the air inlet 401 is disposed on a side wall of the fan assembly 4 and disposed around the fan of the fan assembly 4, and the air outlet 402 is disposed on a top portion of the blade of the fan assembly 4; at this time, the front filter screen 5 is arranged to be an annular cylindrical body and sleeved on the periphery of the air inlet 401, the rear filter screen 6 is circular and arranged at the top of the blade of the fan assembly 4, and airflow flows in from the side wall below the fan assembly 4 and flows out from the top of the fan assembly 4.

Fig. 3 is a structural diagram of the rear filter screen according to the first embodiment of the present invention.

In some embodiments, the air inlet 401 is disposed on a side wall of the fan assembly 4 and disposed around a fan of the fan assembly 4, and the air outlet 402 is disposed on a side wall and a top of a blade of the fan assembly 4. Referring to fig. 3, the rear filter screen 6 includes a circular top 61 and a circular cylindrical body 62, the circular top 61 is disposed at the top air outlet 402 of the fan assembly 4, the circular cylindrical body 62 surrounds the side wall air outlet 402 of the fan assembly 4, and the air flows in from the side wall below the fan assembly 4 and flows out from the top and the side wall of the top of the fan assembly 4.

In some embodiments, the front filter screen 5 and the rear filter screen 6 are arranged side by side along the axial direction of the fan assembly, and the front filter screen and the rear filter screen are isolated from each other by air flow along the axial direction, and the air flow isolation is implemented by using an isolation ring which is arranged at the joint of the front filter screen and the rear filter screen. Leading filter screen 5 surrounds the latter half of fan subassembly 4 periphery this moment, and rearmounted filter screen 6 surrounds the upper half of fan subassembly 4 periphery, and leading filter screen 5 and rearmounted filter screen 6 set up to non-detachable integral type and connect, also can set up to mutual detachable split type connection, when needing to clear up the filter screen, take off leading filter screen 5 and rearmounted filter screen 6 together from dust catcher dust bucket 601 top, or take off rearmounted filter screen 6 earlier, take off leading filter screen 5 again.

In order to ensure that the airflow flowing through the front filter screen 5 completely enters the fan assembly 4 and simultaneously ensure that the airflow of the fan assembly 4 completely flows out through the rear filter screen 6, an isolation ring is required to be arranged at the joint of the front filter screen 5 and the rear filter screen 6, and meanwhile, the airflow flowing through the front filter screen 5 and the rear filter screen 6 can not be communicated with each other.

In some embodiments, the pre-strainer 5 and the post-strainer 6 are removably disposed together in the frame when the pre-strainer 5 and the post-strainer 6 are integrally connected.

In some embodiments, when the front and rear screens 5 and 6 are detachably connected, the front and rear screens 5 and 6 are detachably mounted in front and rear screen frames, and the front and rear screen frames are detachably connected to form an integral frame. Leading filter screen 5 only is responsible for the air intake 401 that surrounds fan subassembly 4 periphery this moment, and rearmounted filter screen 6 only surrounds air outlet 402 of fan subassembly 4 periphery, when needing to clear up the filter screen, takes off rearmounted filter screen 6 from the dust catcher dust bucket 601 top earlier, takes off leading filter screen 5 again.

Optionally, the detachably mounting or detachably connecting comprises one of an elastic snap-fit connection, a rotary snap-fit connection, a magnetic connection, a tongue and groove connection, a threaded connection, a key connection, and a pin connection.

In order to ensure that the airflow flowing through the front filter screen 5 completely enters the fan assembly 4 and that the airflow of the fan assembly 4 completely flows out through the rear filter screen 6, a separation ring needs to be arranged at the joint of the front filter screen 5 and the air inlet 401, and a separation ring also needs to be arranged at the joint of the rear filter screen 6 and the air outlet 402.

In some embodiments, the diameter of the rear screen 6 is larger than the diameter of the front screen 5, so that a part of the space between the front screen 5 and the wall of the dust bin 601 is reserved for accommodating a plurality of vertical accommodating sleeves 102 formed in the cyclone cover 1 as described below.

Fig. 4 is a structural diagram of a dust cleaning mechanism according to a second embodiment of the present invention.

Fig. 5 is a gear box installation diagram of a dust cleaning mechanism according to a second embodiment of the present invention.

In a second embodiment of the present invention, please refer to fig. 4 and 5, the present invention further provides a dust cleaning mechanism, which is disposed in the cyclone separation device described below, wherein a part of the dust cleaning mechanism is disposed in the groove 103 at the middle of the cyclone tube cover 1, and another part of the dust cleaning mechanism is disposed in the central through hole disposed at the middle of the inner ring cyclone tube group a.

Specifically, the dust cleaning mechanism includes: a sealing cover (corresponding to a cyclone separation device below), a driving mechanism 7, a transmission mechanism and an ash scraping mechanism; the driving mechanism 7 is a motor and provides power for the dust cleaning mechanism; the transmission mechanism comprises a gear box 8, the gear box 8 is connected with the driving mechanism 7 through an input shaft 801, the gear box 8 is connected with the dust scraping mechanism through an output shaft 802, and the gear box is used for driving the dust scraping mechanism to move along the axial direction of a dust barrel of the cleaning equipment so as to scrape dust in the dust barrel; the dust scraping mechanism comprises a dust scraping body 9, and the gear box 8 is in transmission connection with the dust scraping body 9 through an output shaft 802 so as to drive the dust scraping body 9 to move along the axial direction of the dust barrel and scrape dust in the dust barrel; the ash scraping body 9 is further provided with a first ash scraping strip 901 and/or a second ash scraping strip 902. The first dust scraping strip 901 contacts with the inner wall of the dust barrel to scrape dust on the inner wall of the dust barrel; the second dust scraping strip 902 is used for scraping off dust remaining on the outer surface of the filter screen of the cleaning device.

Optionally, the gearbox 8 comprises a plurality of output shafts 802.

Wherein the drive mechanism 7 and the gear box 8 of the transmission mechanism are arranged in the sealing cover (cyclone separation device). Specifically, the driving mechanism 7 is arranged in a through hole arranged in the middle of the inner cyclone tube group a, and the gear box 8 is arranged in a groove 103 arranged in the middle of the cyclone tube cover 1.

In some embodiments, a stainless steel screen 10 is installed on the periphery of the cyclone separation device, and when the dust scraping body 9 moves along the axial direction of the dust barrel, dust adhered to the stainless steel screen 10 is also scraped while the dust on the inner wall of the dust barrel is scraped.

In some embodiments, the first dust scraping strip 901 is provided with a ring of wool strips or other alternative materials capable of adhering dust on the periphery thereof for scraping off dust adhering to the inner wall of the dust barrel. The inner periphery of the second dust scraping strip 902 is provided with a rubber strip or other alternative materials capable of adhering dust for scraping the dust adhered to the filter screen wall.

In some embodiments, the ash scraping body 9 is provided in a conical or cylindrical configuration. When scraping grey body 9 and being the toper, the diameter of first ash strip 901 of scraping is greater than the diameter of second ash strip 902 of scraping, can not only scrape remaining dust on the dirt bucket inner wall, can also scrape remaining dust of other equipment in the dirt bucket simultaneously. When scraping grey body 9 and being cylindrical structure, the top of this cylindrical structure is equipped with the structure of the outside extension of round, and promptly for first scraping grey strip 901, the second is scraped grey strip 902 and is located cylindrical structure bottom, and the diameter that first scrapes grey strip 901 this moment also is greater than second and scrapes grey strip 902.

In some embodiments, the transmission mechanism further comprises: a plurality of axially disposed racks 15; the rack 15 is matched with a gear 802 arranged on each output shaft 801 to transmit the power of the output shaft 801 to the rack 15; the rack 15 is in transmission connection with the dust scraping body 9, the output shaft 801 transmits power to the gear 802, the gear 802 drives the rack 15, and the rack 15 drives the dust scraping body 9 to move along the axial direction of the dust barrel.

Specifically, the gear box 8 extends horizontally outward with a plurality of output shafts 801, and each output shaft 801 is provided with a gear 802.

In some embodiments, the sealing cover of the middle dust cleaning mechanism of the present invention is a cyclone separator, and a plurality of vertical accommodating sleeves 102 are formed in the cyclone cover 1 and are matched with the rack 15, and the gear 802 drives the rack 15 to move axially along the dust barrel 601 in the accommodating sleeve 102.

Specifically, the accommodating sleeve 102 is integrally provided with the cyclone cover 1, and the ten second cyclone tubes b are divided into three cyclone tube groups, each cyclone tube group is circumferentially spaced, and the three accommodating sleeves 102 are respectively disposed in the spacing of each cyclone tube group.

Fig. 6 is a gear rack mounting diagram of a dust cleaning mechanism according to a second embodiment of the present invention.

Fig. 7 is a partially enlarged view based on fig. 6.

In some embodiments, referring to fig. 6 and 7, the seal cover is formed to isolate dirty air from clean air, the gear box 8 is provided on the clean air side, and the rack 15 is provided on the dirty air side; the output shaft 801 passes through the sealing cover to connect the rack 15 with the gear box 8.

Specifically, the driving mechanism 7 and the gear box 8 are arranged in a cyclone separation device which is described below, and the rack 15 of the transmission mechanism is arranged outside the cyclone separation device; the input shaft of the gear box 8 comprises an axial bevel gear e and a radial bevel gear f which are connected in a matching mode, one end of an output shaft 801 of the gear box 8 is connected with the input shaft through the axial bevel gear e, and the other end of the output shaft 801 penetrates through the outer ring cyclone tube group B, so that a gear 802 on the output shaft 801 is matched with the rack 15.

In some embodiments, the output shaft 801 is provided with a sealing block to seal the through hole on the pipe wall when the output shaft 801 passes through the outer cyclone pipe group B.

In some embodiments, a vibrating mass 16 is also included; the vibrating block 16 is arranged in a through hole arranged in the middle of the inner ring cyclone tube group A, namely on the dirty air side, is in transmission connection with the driving mechanism 7, can realize transverse vibration and is used for shaking off adhered dust.

In some embodiments, the cleaning device further comprises a cover opening mechanism for locking the dust barrel cover 602 and the dust barrel 601 of the cleaning device; the transmission mechanism is matched with the cover opening mechanism, and when the rack 15 of the transmission mechanism axially moves to a preset position along the dust barrel 601, the cover opening mechanism is pushed to move, so that the locking state of the dust removal barrel cover 602 relative to the dust barrel 601 is released.

Fig. 8 is a schematic structural view of a cover opening mechanism of a dust cleaning mechanism according to a second embodiment of the present invention.

Specifically, referring to fig. 8, the lid opening mechanism includes: a slide block 11, a push rod 12 and a rotary buckle 13; the sliding block 11 is arranged at the top of an axial sliding groove formed on the sealing cover, one end of the sliding block is positioned in the accommodating sleeve 102, and the other end of the sliding block is positioned on the outer wall of the dust barrel 601 and is abutted against the top end of the push rod 12; the push rod 12 is radially arranged on the outer wall of the dust barrel 601, and the bottom end of the push rod 12 is abutted against the rotary buckle 13; the turnbuckle 13 is used for locking a hook 14 which is connected with the dust barrel cover 602 and the dust barrel 601.

When the rack 15 moves to a preset position in the accommodating sleeve 102 along the axial direction of the dust barrel 601, the protrusion arranged on the rack 15 pushes one end of the slider 11, so that the slider 11 moves to the bottom of the chute, meanwhile, the other end of the slider 11 pushes the push rod 12 to move towards the turn buckle 13, the turn buckle 13 is forced to rotate, the hook 14 is opened, and the locking state of the cover opening mechanism is released.

The utility model discloses an among the dust cleaning mechanism, rack 15 will promote to scrape when scraping the axial displacement of ash body 9 along dirt bucket 601 in holding cover 102 and strike off remaining dust on the dust removal bucket 601 inner wall, strikes off the remaining dust of other equipment in the dirt bucket 601 simultaneously. When the rack 15 moves to the preset position, the ash scraping action is finished, and meanwhile, the cover opening mechanism starts to work, so that the dust barrel cover 602 is opened, and dust automatically falls down.

In some embodiments, the height of the rack 15 is half of the axial height of the dirt cup 601.

Specifically, in order to ensure that the dust-scraping body 9 can completely scrape off the inner wall of the dust collector, the dust-scraping body 9 needs to be moved to the bottom of the dust barrel 601 as far as possible, so that the height of the rack 15 is set to be half of the axial height of the dust barrel 601.

In some embodiments, the height of rack 15 is the height of stainless steel screen 10.

Specifically, the stroke of the whole dust cleaning mechanism is the length of the rack 15, and the height needs to be determined according to the structure of the whole cleaner, and can also be set to be the whole height of the stainless steel filter screen 10 in the cleaner, so that the second dust scraping strip 902 can completely scrape the stainless steel filter screen 10.

In some embodiments, the height of the rack 15 is the vertical height of the pre-strainer 5.

Specifically, as mentioned above, a part of the reserved space is provided between the front-located filter screen 5 and the inner wall of the dust barrel 601 for accommodating the accommodating sleeve 102, and the accommodating sleeve 102 has the rack 15 therein. The height of the rack 15 is set to the vertical height of the front filter 5 according to the construction of the cleaner overall.

Fig. 9 is a schematic structural diagram of a cyclone separation device according to a third embodiment of the present invention.

Fig. 10 is a top view of fig. 9.

In a third embodiment of the present invention, a cyclone separation device is provided, as shown in fig. 9-10, which mainly comprises an inner ring cyclone tube group a and an outer ring cyclone tube group B, wherein the air outlet end of the inner ring cyclone tube group a is recessed in the air outlet end of the outer ring cyclone tube group B to form a recessed space.

Specifically, outer lane whirlwind nest of tubes B is cyclic annular, and outer lane whirlwind nest of tubes B encircles inner circle whirlwind nest of tubes A and sets up, and outer lane whirlwind nest of tubes B sets up with inner circle whirlwind nest of tubes A's air-out end homonymy, and outer lane whirlwind nest of tubes B sets up with inner circle whirlwind nest of tubes A's dust exhaust end homonymy, and inner circle whirlwind nest of tubes A's air-out end caves in outer lane whirlwind nest of tubes B, has formed the sunk space, and this sunk space specifically is used for holding dust. In some embodiments, the inner cyclone tube group a includes a plurality of inner cyclone tubes a, axes of the plurality of inner cyclone tubes a are parallel and are not arranged in a coincident manner, and on a cross section perpendicular to the axes of the plurality of inner cyclone tubes a, center points of the plurality of inner cyclone tubes a are located in the same circumferential direction.

In some embodiments, the cyclonic separating apparatus defines a longitudinal axis; the inner ring cyclone tube group A comprises a plurality of inner cyclone tubes a, and the axes of the inner cyclone tubes a are parallel to and do not coincide with the longitudinal axis defined by the cyclone separation device; the outer ring cyclone tube group B comprises a plurality of outer cyclone tubes B, and the axes of the outer cyclone tubes B form included angles with the longitudinal axis defined by the cyclone separation device; and the plurality of inner cyclone tubes a and the plurality of outer cyclone tubes b are respectively arranged in an annular shape perpendicular to the section of the longitudinal axis defined by the cyclone separation device.

Specifically, the inner cyclone tube group A comprises a plurality of inner cyclone tubes a, the outer cyclone tube group B comprises a plurality of outer cyclone tubes B, the inner cyclone tubes a and the outer cyclone tubes B are cyclone tubes with the same structure, and the sizes of the inner cyclone tubes a and the outer cyclone tubes B are not limited. The cyclone tube is a conical tube, the upper end and the lower end of the cyclone tube are open, the upper end is an air outlet end (cyclone end), the lower end is a dust exhaust end, and the opening of the upper end is larger than that of the lower end. The cyclone separation device limits a longitudinal axis, the axis of the inner cyclone tube a is longitudinally arranged, the axes of the inner cyclone tubes a are parallel to and do not coincide with the longitudinal axis limited by the cyclone separation device, the heights of the air outlet ends and the dust exhaust ends of all the inner cyclone tubes a in the longitudinal direction are the same, the heights of the air outlet ends and the dust exhaust ends of all the outer cyclone tubes b in the longitudinal direction are the same, the cross section of the longitudinal axis limited by the cyclone separation device is vertical, the inner cyclone tubes a and the outer cyclone tubes b are respectively arranged in an annular shape, and the inner cyclone tubes a surround the outer cyclone tubes.

In some embodiments, the plurality of outer cyclone tubes b form a plurality of outer cyclone tube groups, which are circumferentially spaced to form the reserved interval c.

The outer ring cyclone tube group B can be divided into three cyclone tube groups, wherein the number of the outer cyclone tubes B of the three cyclone tube groups is approximately equal respectively. For example, when the outer ring cyclone tube group B comprises seven outer cyclone tubes B, the number of the outer cyclone tubes B in the three cyclone tube groups is two, two and three; when the outer ring cyclone tube group B comprises eight outer cyclone tubes B, the number of the outer cyclone tubes B in the three cyclone tube groups is two, three and three respectively; when the outer ring cyclone tube group B comprises nine outer cyclone tubes B, the number of the outer cyclone tubes B in the three cyclone tube groups is three, three and three respectively; when the outer ring cyclone tube group B comprises ten external cyclone tubes B, the number of the external cyclone tubes B in the three cyclone tube groups is three, three or four respectively, and so on. The adjacent cyclone tube groups are arranged at intervals along the circumferential direction to form a reserved interval c for arranging the accommodating sleeve 102.

In some embodiments, each outer cyclone tube bank comprises a plurality of outer cyclone tubes b distributed around the inner cyclone tube bank a.

In some embodiments, the inner set of cyclone tubes a is centrally provided with a through void in the direction of the longitudinal axis defined by the cyclonic separating apparatus for receiving a part of the dirt removing means.

Specifically, the center of the inner ring cyclone tube group A is provided with a central through hole along the direction of a longitudinal axis defined by the cyclone separation device, and the axial direction of the central through hole is overlapped with the longitudinal axis defined by the cyclone separation device.

In some embodiments, the axis of the partial outer cyclone tube b intersects the longitudinal axis defined by the cyclonic separating apparatus at an included angle.

In some embodiments, the axes of the partial outer cyclone tubes b are each angled out-of-plane with respect to a longitudinal axis defined by the cyclonic separating apparatus. In particular, the angle of the outer cyclone tube b with respect to the longitudinal axis defined by the cyclonic separating apparatus may be between 6 and 25 °, for example the angle may be one of 8 °, 10 °, 12 °, 14 °, 16 °, 18 °, 20 °, 22 ° and 24 °. The angle of the angle between each of the outer cyclone tubes b and the longitudinal axis defined by the cyclonic separating apparatus may be the same, and the angle of the angle between the plurality of outer cyclone tubes b and the longitudinal axis defined by the cyclonic separating apparatus may be different under certain constraints, for example, space conditions, the size and shape of the cyclone tubes.

In some embodiments, the axes of the plurality of outer cyclone tubes b intersect at the same point along the longitudinal axis defined by the cyclonic separating apparatus.

One specific implementation is as follows: the outer ring cyclone tube group B comprises ten outer cyclone tubes B which are distributed around the axis of the cylindrical inner ring cyclone tube group A, and the axis of the outer cyclone tube B and the axis of the inner ring cyclone tube group A form an included angle; the ten external cyclone tubes b are divided into three groups of cyclone tube groups, wherein two groups of cyclone tube groups respectively comprise three external cyclone tubes b, the last group of cyclone tube group comprises four external cyclone tubes b, and a circumferential gap is formed between each group of cyclone tubes. The axis of each outer cyclone pipe b and the axis of the inner ring cyclone pipe group A form an included angle which is 7 degrees, and the axes of all the outer cyclone pipes b are intersected at one point on the axis of the first cyclone assembly.

In some embodiments, unlike the previous embodiments, the axes of the plurality of outer cyclone tubes b are parallel to the axis of the inner cyclone tube group a.

Fig. 11 is a schematic structural diagram of a cyclone tube cover according to a third embodiment of the present invention.

In some embodiments, as shown in figure 11, the cyclonic separating apparatus further comprises a cyclone cover 1. The cyclone tube cover 1 covers the air outlet ends of the inner cyclone tube a and the outer cyclone tube b, and a flow guide tube 101 extending into each of the inner cyclone tube a and the outer cyclone tube b is arranged on the cyclone tube cover 1; the air inlets of the inner cyclone tube a and the outer cyclone tube b are arranged on the side walls of the inner cyclone tube a and the outer cyclone tube b; along the axial direction of the inner cyclone tube a and the outer cyclone tube b, the air inlet end of the flow guide tube 101 is arranged between the air inlets of the inner cyclone tube a and the outer cyclone tube b and the dust exhaust ends of the corresponding inner cyclone tube a and the corresponding outer cyclone tube b.

Specifically, the cyclone tube cover 1 is arranged above the inner cyclone tube group a and the outer cyclone tube group B, that is, on the air outlet side of the inner cyclone tube group a and the outer cyclone tube group B. A groove 103 corresponding to the concave space is formed in the middle of the cyclone tube cover 1 and used for arranging a gear box 8 of the dust cleaning mechanism, a through hole is formed in the bottom of the groove 103, the axis of the through hole is overlapped with the axis of the central through hole, the size of the through hole is matched with that of the central through hole, and a driving mechanism 7 of the dust cleaning mechanism is installed; a guide pipe 101 corresponding to the inner cyclone pipe a and the outer cyclone pipe b is arranged on the cyclone pipe cover 1, and the air inlet end (lower end) and the air outlet end (upper end) of the guide pipe 101 are opened; the side walls of the upper openings of the inner cyclone pipe a and the outer cyclone pipe b are provided with air inlets, and air inlet channels are arranged at the air inlets. The openings of the air inlet channels are arranged outwards, and the air inlets of the air inlet channels are arranged around the outer edges of the corresponding inner ring cyclone tube group A and the outer ring cyclone tube group B respectively, so that airflow can enter each cyclone tube in a rotating mode under the guidance of the air inlet channels. The lower end of the flow guide pipe 101 extends into the corresponding inner cyclone pipe a and the corresponding outer cyclone pipe b, and is lower than the air inlets of the inner cyclone pipe a and the outer cyclone pipe b in the longitudinal height, namely, the air inlet end of the flow guide pipe 101 is arranged between the air inlet of the inner cyclone pipe a and the air inlet of the outer cyclone pipe b and the dust exhaust end of the corresponding inner cyclone pipe a and the corresponding outer cyclone pipe b along the axial direction of the inner cyclone pipe a and the outer cyclone pipe b. The draft tube 101 is used for guiding the air current, and the draft tube 101 can also assist and form the cyclone, improves the cyclone separation effect, is convenient for separate the granule rubbish.

In some embodiments, the opening directions of the air inlet channels of the inner cyclone tube a and the outer cyclone tube b are opposite.

Specifically, the opening direction of the air inlet channels of the plurality of internal cyclone tubes a enables the airflow in the clockwise direction to enter tangentially, the opening direction of the air inlet channels of the plurality of external cyclone tubes b enables the airflow in the anticlockwise direction to enter tangentially, or the opening direction of the air inlet channels of the plurality of internal cyclone tubes a enables the airflow in the anticlockwise direction to enter tangentially, the opening direction of the air inlet channels of the plurality of external cyclone tubes b enables the airflow in the clockwise direction to enter tangentially,

in some embodiments, the outer edge of the cyclone tube cover 1 is provided with a receiving sleeve 102, the receiving sleeve 102 extends in the same direction as the air outlet direction of the inner cyclone tube group a, and the open end of the receiving sleeve 102 is disposed at the reserved interval c.

One specific embodiment is as follows: the outer edge of the cyclone tube cover 1 is vertically provided with three accommodating sleeves 102, the accommodating sleeves 102 extend upwards, openings of the accommodating sleeves 102 are arranged downwards, and the three accommodating sleeves 102 are respectively arranged in reserved intervals c between each group of the cyclone tube groups.

Fig. 12 is a schematic structural diagram of a sealing sleeve according to a third embodiment of the present invention.

In some embodiments, as shown in figure 12, the cyclonic separating apparatus further comprises a sealing boot 2. The outer ring cyclone tube group B and the inner ring cyclone tube group A are sleeved with the sealing sleeve 2, and the outer side of the dust discharging end of the outer ring cyclone tube group B and the inner ring cyclone tube group A is used for sealing the dust discharging end of the airflow entering the second cyclone assembly, which flows to the outer ring cyclone tube group B and the inner ring cyclone tube group A.

Specifically, seal cover 2 is the column, and seal cover 2 is located interior cyclone a and the toper dust removal end of outer cyclone b, is provided with sleeve 201 that is provided with on the seal cover 2 and corresponds with interior cyclone a and outer cyclone b on the seal cover 2, and sleeve 201 cup joints with interior cyclone a and outer cyclone b are sealed. The middle part of the sealing sleeve 2 is provided with a holding groove matched with the central through hole along the axial direction, and the holding groove is used for holding a driving mechanism 7 for holding the dust cleaning mechanism.

In some embodiments, the sleeve 201 is disposed coaxially with the axis of the corresponding cyclone tube.

Fig. 13 is a schematic structural view of a third embodiment of the isolation cover provided by the present invention;

in some embodiments, as shown in fig. 13, the cyclone separation apparatus further comprises a shielding case 17, wherein the shielding case 17 is provided with a mounting groove 1701 for cooperating with the accommodating sleeve 102, and the shielding case 17 is connected with the cyclone cover 1 in a sealing manner.

Specifically, the cage 17 is funnel-shaped, the upper and lower both ends of the cage 17 are open, and the lower end opening is smaller than the upper end opening, the cage 17 specifically surrounds the setting of outer lane whirlwind nest of tubes B, the bottom sealing connection of cage 17 top and whirlwind tube lid 1, cage 17 top edge is provided with three mounting groove 1701 with the cooperation use of holding cover 102, the position of holding cover 102 and mounting groove 1701 corresponds, be provided with the rack 15 in the preceding embodiment in the mounting groove 1701, under the cooperation of holding cover 102 and mounting groove 1701, gear 802 drives rack 15 along the axial displacement of dirt bucket 601 in holding cover 102.

Fig. 14 is a schematic structural view of a stainless steel screen according to a third embodiment of the present invention.

In some embodiments, as shown in fig. 14, the cyclonic separating apparatus further comprises a stainless steel filter screen 10, the stainless steel filter screen 10 being disposed around the shroud 17.

Specifically, the stainless steel filter screen and cage 17 phase-match, the stainless steel filter screen setting is in the bottom of cage 17, and the stainless steel filter screen top is connected with the bottom of cage 17.

Fig. 15 is a schematic structural view of a dust collecting container according to a third embodiment of the present invention.

In some embodiments, as shown in figure 15, the cyclonic separating apparatus comprises a dirt cup 18. One end (top end) of the dust collection cylinder 18 is connected with the stainless steel filter screen 10 and the bottom of the isolation cover 17, and the other end (lower end) of the dust collection cylinder 18 is hermetically connected with the bottom of the dust barrel 601.

Specifically, the upper end of the dust collecting barrel 18 is provided with an annular connecting portion 1801, the annular connecting portion 1801 extends radially outward, the annular connecting portion 1801 is provided with an annular sealing connecting portion 1802 close to the center of the circle, and the sealing connecting portion 1802 is used for being in sealing connection with the bottom of the isolation cover 17 and preventing the airflow passing through the stainless steel filter screen 10 from flowing to the bottom of the dust barrel 601, so that the airflow flows to the air inlets of all cyclone tubes. The lower end of the dust collecting barrel 18 is hermetically connected with the bottom of the dust barrel 601.

Fig. 16 is a schematic structural view of a cover of a cyclone separation device according to a third embodiment of the present invention.

As shown in fig. 16, the separating hood 17, the stainless steel filter screen 10 and the dust collecting barrel 18 from top to bottom form a cyclone separating device hood, the first cyclone separation is performed outside the cyclone separating device hood, and the airflow after the first cyclone separation can only enter the cyclone separating device through the stainless steel filter screen 10 to perform the second cyclone separation, so that the stainless steel filter screen 10 becomes the only inlet of the cyclone separating device.

According to another aspect of the present application there is also provided a cleaning appliance including cyclonic separating apparatus according to any one of the preceding aspects.

In a fourth embodiment of the present invention, a vacuum cleaner air path assembly is provided, which mainly comprises a first cyclone assembly, a second cyclone assembly and a filtering assembly. Wherein the second cyclone assembly is provided with a depressed space.

Specifically, the dust collector is provided with an air inlet and an air outlet, the air inlet of the dust collector is arranged on the side wall of the dust barrel 601, the air outlet of the dust collector is arranged on the side surface or the top of the shell 3, the air inlet end of the first cyclone assembly is communicated with the air inlet of the dust collector, the air outlet end of the first cyclone assembly is communicated with the air inlet end of the second cyclone assembly, the air outlet end of the second cyclone assembly is communicated with the air inlet end of the filtering assembly, the air outlet end of the filtering assembly is communicated with the air outlet of the dust collector, the air flow entering the dust collector sequentially flows through the first cyclone assembly, the second cyclone assembly and the filtering assembly and then is discharged out of the dust collector, the primary separation of the air flow is realized at the first cyclone assembly, the secondary separation of the air flow is realized at the second cyclone assembly, and the tertiary separation is realized at the. Wherein the second cyclone assembly is mainly disposed in the dust tub 601 of the cleaner. The air outlet side of the second cyclone assembly is sunken to form a sunken space. It should be noted that the second cyclone assembly is the cyclone separating apparatus in the foregoing embodiments.

In some embodiments, the second cyclone assembly comprises an inner ring cyclone tube group a and an outer ring cyclone tube group B, and the inner ring cyclone tube group a and the outer ring cyclone tube group B respectively comprise a plurality of cyclone tubes; the air outlet end of the inner ring cyclone tube group A is recessed in the air outlet end of the outer ring cyclone tube group B to form a recessed space, and the recessed space is used for accommodating a part of the dust cleaning mechanism.

Specifically, the second cyclone assembly mainly comprises a cyclone tube separation system consisting of a ring cyclone tube group A and an outer ring cyclone tube group B, and the separation of airflow and particle garbage is realized by adopting the same cyclone separation principle as the first cyclone assembly. The inner ring cyclone tube group A and the outer ring cyclone tube group B comprise a plurality of cyclone tubes, air outlet ends of the cyclone tubes are arranged on the same side, the air outlet end of the inner ring cyclone tube group A is recessed in the air outlet end of the outer ring cyclone tube group B, and the top ends of the inner ring cyclone tube group A and the outer ring cyclone tube group B are located at different heights respectively to form a recessed space. The airflow can enter the interior of the cyclone tube from the air inlet of the cyclone tube after passing through the gap between the cyclone tubes.

In some embodiments, the outer cyclone tube group B includes a plurality of cyclone tube groups, and the plurality of cyclone tube groups are arranged at intervals to form a reserved interval c.

Specifically, the outer ring cyclone tube group B is annular, the plurality of cyclone tube groups are arranged in the circumferential direction of the outer ring cyclone tube group B, and adjacent cyclone tube groups are arranged at intervals to form a reserved interval c. The plurality of cyclone tube groups can be arranged at equal intervals or non-equal intervals, and are not limited herein according to the specific spatial arrangement.

In some embodiments, the second cyclone assembly further comprises a sealing sleeve 2. The sealing sleeve 2 is sleeved on the outer sides of the dust exhaust ends of the inner cyclone tube group A and the outer cyclone tube group B and is used for sealing airflow entering the second cyclone assembly to flow to the dust exhaust ends of the inner cyclone tube group A and the outer cyclone tube group B.

Specifically, the sealing structure formed by the sealing sleeve 2 at the dust exhaust ends of the inner ring cyclone tube group a and the outer ring cyclone tube group B can make the airflow circulate along a predetermined air path, that is, the airflow is discharged after being subjected to cyclone separation through the cyclone tubes.

In some embodiments, the second cyclone assembly further comprises a cyclone tube cover 1. The cyclone tube cover 1 is arranged to cover the air outlet ends of all cyclone tubes, and the cyclone tube cover 1 is provided with a flow guide tube 101 extending into each cyclone tube; the air inlet of the cyclone tube is arranged on the side wall of each cyclone tube; the air inlet end of the draft tube 101 is closer to the dust exhaust end of the cyclone tube along the axial direction of the draft tube 101 relative to the air inlet of the cyclone tube.

Specifically, under the guidance of the draft tube 101 of the cyclone cover 1, the air current discharged from the cyclone tube passes through the draft tube 101 to reach the upper side of the cyclone cover 1.

In some embodiments, the first cyclone assembly comprises a stainless steel screen 10 and a dirt cup 601. A stainless steel screen 10 is disposed at least partially around the second cyclone assembly; the barrel wall of the dust barrel 601 surrounds the stainless steel filter screen 10, and an annular cyclone flow passage is formed between the barrel wall of the dust barrel 601 and the stainless steel filter screen 10.

Specifically, the dust barrel 601 is cylindrical, a dust barrel cover 602 is arranged at the bottom, and dust and garbage in the dust barrel 601 can be discharged out of the dust barrel 601 by opening the dust barrel cover 602. The stainless steel screen 10 is an annular screen, the stainless steel screen 10 is disposed in the dirt bucket 601, and the stainless steel screen 10 is disposed around the second cyclone assembly. The stainless steel filter screen 10 and the dust barrel 601 are coaxially arranged, so that an annular cyclone flow channel is formed between the stainless steel filter screen 10 and the dust barrel 601, large-particle garbage is separated from the airflow through the cyclone flow channel and falls into the bottom of the dust barrel 601, and primary separation (rough separation) of the airflow is realized; the air flow passing through the stainless steel filter screen 10 enters the second cyclone assembly for separation again, so that small-particle garbage is separated, and secondary separation (fine separation) is realized.

In some embodiments, the second cyclone assembly further comprises a fan assembly 4. The filter assembly comprises a pre-filter screen 5 and a post-filter screen 6. The front filter screen 5 is used for filtering the airflow flowing to the fan assembly 4 from the second cyclone assembly; the rear filter screen 6 is used for filtering the air flow discharged by the fan assembly 4.

In some embodiments, the air path assembly further comprises an air outlet. The air outlet is arranged at the periphery or the top of the fan assembly 4 and is used for discharging airflow out of the dust collector.

Specifically, the fan assembly 4 is cylindrical and is disposed in the housing 3. The air inlet 401 of the fan assembly 4 is disposed at the bottom of the side wall, and the air inlet 401 of the fan assembly 4 may be disposed at the upper portion of the side wall or at the top of the fan assembly 4. The fan assembly 4 comprises a fan and blades, the fan is arranged at an air inlet 401 of the fan assembly 4, the blades are arranged at an air outlet 402 of the fan assembly 4, and air flow enters from the bottom of the side wall of the fan assembly 4 and flows to the top of the fan assembly 4 along the axial direction (from bottom to top) of the fan assembly 4 and is discharged along the axial direction or the radial direction of the fan assembly 4. The front filter screen 5 is arranged at the air inlet 401 of the machine component 4 and used for filtering the airflow flowing to the fan component 4 from the second cyclone component, the rear filter screen 6 is arranged at the air outlet 402 of the fan component 4 and used for filtering the airflow discharged by the fan component 4, and the airflow filtered by the rear filter screen 6 is discharged out of the dust collector.

In some embodiments, the front filter screen 5 and the rear filter screen 6 are annular cylindrical filter screens; the front filter screen 5 is sleeved on the periphery of the air inlet 401, and the rear filter screen 6 is arranged along the circumferential direction of the blades of the fan assembly 4, so that airflow flows along the radial direction of the front filter screen 5 and the rear filter screen 6, and the two-stage filtering efficiency is improved.

Specifically, the front filter screen 5 and the rear filter screen 6 are annular cylindrical filter screens, and the front filter screen 5 and the rear filter screen 6 are sleeved outside the fan assembly 4; the mounting groove that can set up leading filter screen 5 and rearmounted filter screen 6 in the casing 3 makes leading filter screen 5 cover establish the periphery at fan subassembly 4, and rearmounted filter screen 6 arranges along the circumference of blade, makes the air current along leading filter screen 5 and rearmounted filter screen 6's radial flow.

In some embodiments, the outer edge of the cyclone tube cover 1 is provided with a receiving sleeve 102, the receiving sleeve 102 extends in the same direction as the air outlet direction of the inner cyclone tube group a, and the open end of the receiving sleeve 102 is disposed at the reserved interval c.

Fig. 17 is a schematic view of an airflow path according to a fourth embodiment of the present invention.

Airflow enters from an air inlet arranged on the dust barrel 601 under the action of suction force generated by a fan, the airflow passes through a cyclone flow channel formed in a space between the barrel wall of the dust barrel 601 and the stainless steel filter screen 10 to be roughly separated, the airflow passes through the stainless steel filter screen 10 and passes through a gap between cyclone pipes, the airflow enters into the corresponding cyclone pipes under the guide of an air inlet channel of the cyclone pipes, the airflow forms cyclone in the cyclone pipes to realize second separation, the cyclone pipes discharge small-particle garbage from a dust discharge end and then enter the dust barrel 601, the airflow after the second separation flows out from the cyclone ends of the cyclone pipes under the drainage action of a cyclone cover guide pipe 101, the airflow enters from the bottom of the side wall of the fan assembly 4 after passing through a front filter screen and flows to the top of the fan assembly 4 along the axial direction or the radial direction of the fan assembly 4, and then the dust is filtered by the filter screen and is discharged out of the dust collector from the air outlet of the shell 3.

According to another aspect of the application, a cleaning device is further provided, and the cleaning device comprises the dust collector air path assembly in any one of the aspects.

According to another aspect of the present application, there is also provided a cleaning apparatus comprising one or more of the filter assembly, the dust cleaning mechanism, the cyclonic separating apparatus and the vacuum cleaner air duct assembly of the preceding claims.

The cleaning equipment in the utility model can be a cylinder type vacuum cleaner, and can also be suitable for other types of vacuum cleaners, such as a handheld vacuum cleaner, a horizontal vacuum cleaner and a sweeping robot. 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.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims (10)

1. A dust collector air path component is characterized by comprising:

a first cyclone assembly;

a second cyclone assembly provided with a depressed space;

a filter assembly; wherein the content of the first and second substances,

the air outlet end of the first cyclone assembly is communicated with the air inlet end of the second cyclone assembly, and the air outlet end of the second cyclone assembly is communicated with the air inlet end of the filtering assembly.

2. The cleaner air path assembly of claim 1, wherein the second cyclone assembly includes:

an inner ring cyclone tube group (A);

an outer ring cyclone tube group (B);

the inner ring cyclone tube group (A) and the outer ring cyclone tube group (B) respectively comprise a plurality of cyclone tubes;

the air outlet end of the inner ring cyclone tube group (A) is recessed in the air outlet end of the outer ring cyclone tube group (B) to form the recessed space, and the recessed space is used for accommodating a part of the dust cleaning mechanism.

3. The vacuum cleaner air path assembly of claim 2, wherein the outer cyclone tube set (B) comprises:

a plurality of cyclone tube groups arranged at intervals to form a reserved interval (c).

4. The cleaner air path assembly of claim 3, wherein the second cyclone assembly further comprises:

and the sealing sleeve (2) is sleeved on the outer side of the dust exhaust end of the outer ring cyclone pipe group (B) and the inner ring cyclone pipe group (A) and is used for sealing the airflow entering the second cyclone assembly to flow to the dust exhaust end of the inner ring cyclone pipe group (A) and the outer ring cyclone pipe group (B).

5. The cleaner air path assembly of claim 4, wherein the second cyclone assembly further comprises:

the cyclone tube cover (1) is arranged to cover the air outlet ends of all the cyclone tubes, and a guide tube (101) extending into each cyclone tube is arranged on the cyclone tube cover (1);

the air inlet of the cyclone tube is arranged on the side wall of each cyclone tube; wherein the content of the first and second substances,

the air inlet end of the draft tube (101) is closer to the dust exhaust end of the cyclone tube along the axial direction of the draft tube (101) relative to the air inlet.

6. The vacuum cleaner air path assembly of claim 1, wherein the first cyclone assembly comprises:

a stainless steel screen (10) disposed at least partially around the second cyclone assembly,

the dust barrel (601), the bucket wall of dust barrel (601) encircles the stainless steel filter screen, the bucket wall of dust barrel (601) with form annular cyclone runner between the stainless steel filter screen.

7. The vacuum cleaner air path assembly of any one of claims 1-6, further comprising:

a fan assembly (4);

the filter assembly includes:

a pre-strainer (5) for straining airflow from the second cyclonic assembly to the fan assembly (4);

the rear filter screen (6) is used for filtering the airflow discharged by the fan assembly (4).

8. The vacuum cleaner air path assembly of claim 7, wherein:

the front filter screen (5) and the rear filter screen (6) are annular cylindrical filter screens;

leading filter screen (5) encircle air intake (401) of fan subassembly (4), rearmounted filter screen (6) encircle air outlet (402) of fan subassembly (4), make the air current follow leading filter screen (5) with the radial flow of rearmounted filter screen (6).

9. The vacuum cleaner air path assembly of claim 8, further comprising:

and the air outlet is arranged on the periphery or the top of the fan assembly (4) and used for discharging airflow out of the dust collector.

10. A cleaning apparatus comprising the vacuum cleaner air path assembly of any one of claims 1-9.

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