CN202262945U

CN202262945U - Dust collector and dust cup thereof

Info

Publication number: CN202262945U
Application number: CN2011203764131U
Authority: CN
Inventors: 朱利清
Original assignee: Jiangsu Midea Chunhua Electric Appliances Co Ltd
Current assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-06-06
Anticipated expiration: 2021-09-29

Abstract

A dust cup of a dust collector comprises an air inlet, an air outlet, an air inlet channel, a primary dust collection chamber, a secondary dust collection chamber, a cyclone device, an upper air channel and a lateral air channel, wherein a cyclone channel is arranged between a filter net cover of the cyclone device and a cyclone barrel of the cyclone device, and the upper portion of the cyclone channel is communicated with the secondary dust collection chamber through a secondary dust throwing port arranged above the bottom of the secondary dust collection chamber for accommodating fine dust and on the lateral wall of the cyclone barrel. The air inlet channel at least comprises an arc rotary air channel arranged at the upper portion of the cyclone barrel, wherein the rotary air channel is provided with a primary dust throwing port along with tangency direction of the rotary air channel and arranged above the bottom of the primary dust collection chamber for accommodating coarse dust, and the air inlet channel is communicated with the primary dust collection chamber through the primary dust throwing port. The upper air channel is arranged at the upper portion of the cyclone barrel and turns relative to the rotary air channel, one end of the upper air channel is communicated with the rotary air channel, one end of the lateral air channel is communicated with the other end of the upper air channel, and the other end of the lateral air channel is communicated with the lower portion of the rotary air channel. The dust cup is good in separation effect and does not raise dust. The utility model further relates to a dust collector which contains the dust cup for the dust collector.

Description

The dirt cup and the dust catcher of dust catcher

Technical field

The utility model relates to dust catcher, relates in particular to the dirt cup of dust catcher.

Background technology

One Chinese patent application discloses a kind of dust catcher No. 02125787.6; This dust catcher comprises fuselage, the air intake duct that is connected with the peripheral end of fuselage; Run through fuselage top or following one of them face and what be attached thereto is blast pipe; Towards what the direction of air intake duct formed the 1st mudhole arranged in the periphery of fuselage, communicate with the 1st mudhole, collecting what discharge rubbish by the 1st mudhole is the 1st control of dust tube; Outside fuselage, place with the 1st mudhole and form a determining deviation, and second mudhole that in fuselage, forms on the air cyclone path, communicating with the 2nd mudhole, collection is the 2nd control of dust tube by the 2nd mudhole discharge rubbish.

When above-mentioned dust catcher is worked; The suction generator starts; Make outside rubbish and the air of containing in air intake duct entering fuselage, receive the rubbish of inertia force effect, during the 1st mudhole that on through the air intake duct port of export that links to each other with fuselage, forms; Be discharged in the 1st control of dust tube, the 1st control of dust tube is collected heavier rubbish.The port of export of air intake duct is positioned on the tangential direction of fuselage, and the rubbish that gets into fuselage interior circles round along the fuselage internal face, and rubbish is in fuselage interior is circled round process, and it is inner to flow into the 2nd control of dust tube through the 2nd mudhole that forms on the fuselage internal face.

Though above-mentioned dust catcher can reach dust separating effect,, air whirlwind path is shorter, and dust is through repeatedly collision, so speed is without crossing fully decay, and the dust separation effect is bad.

The utility model content

The problem that the utility model solves is the bad problem of dust catcher dust separation effect.

For addressing the above problem; The utility model provides a kind of dirt cup of dust catcher; It has air inlet, air outlet, air intake passage, single stage of dust collection chamber, secondary dust storage chamber and cyclone; Said air intake passage is communicated with air inlet, and said cyclone comprises whirlwind tube and the filtering screen that is positioned at said whirlwind tube, and this filtering screen inside has the air-out passage that is communicated with said air outlet; Has the upwardly extending cyclone channel of spin air duct bottom spiral between said filtering screen and the said whirlwind tube; This cyclone channel is communicated with described air-out passage by the filtering holes on the filtering screen, and the top of said cyclone channel is got rid of the ash mouth by the secondary that is arranged at said whirlwind tube sidewall and is communicated with said secondary dust storage chamber, and said secondary gets rid of the top, bottom that holds thin ash that the ash mouth is positioned at said secondary dust storage chamber; Said air intake passage comprises the curved rotation air channel that is positioned at whirlwind tube top at least; This its tangential direction of upper edge, rotation air channel offers one-level and gets rid of the ash mouth; Said one-level is got rid of the top that the ash mouth is positioned at the bottom that holds cinder of said single stage of dust collection chamber, and said air intake passage gets rid of the ash mouthful said single stage of dust collection of connection chamber by said one-level; Said dirt cup also comprises the crosswind road that is communicated with above-mentioned air intake passage and said cyclone channel, said crosswind road from the top of said whirlwind tube to extending below.

Alternatively; Said dirt cup also comprises baffle; This baffle be positioned at said accommodate passage air-out passage and from the top of said filtering screen around the axis spiral rise and fall of said filtering screen to extending below, the hand of spiral of said baffle is consistent with the hand of spiral of said cyclone channel.

Alternatively; Said whirlwind tube is the cylindrical of hollow, also is provided with upper air duct between described air intake passage and the crosswind road, and said upper air duct is positioned at the top of said whirlwind tube and extends along the top tangential direction of described whirlwind tube; One end of said upper air duct communicates with said rotation air channel; The other end communicates with the top in said crosswind road, and said crosswind road is included in vertical section that extends straight down along the outside wall surface of said whirlwind tube at least, and said upper air duct and said vertical section formation are L shaped.

Alternatively, at least one said one-level is got rid of the ash mouthful junction near rotation air channel and upper air duct.

Alternatively; Said dust catcher comprises first connecting wall and second connecting wall; Said whirlwind tube is the cylindrical of hollow and comprises with the radial section is the first side wall, first diapire, second sidewall and second diapire of boundary; Said single stage of dust collection chamber is surrounded by said the first side wall, said first diapire and first connecting wall relative with said the first side wall at least, and said secondary dust storage chamber is surrounded by said second sidewall, said second diapire and second connecting wall relative with said second sidewall at least.

Alternatively, said one-level is got rid of the ash mouth towards said first connecting wall, and said secondary gets rid of the ash mouth towards second connecting wall.

Alternatively; Said whirlwind tube is the cylindrical of hollow; Said air intake passage also comprises rising passway, rising passway from the air inlet place outside wall surface along the whirlwind tube extend straight up and be communicated with said rotating channel, said rotation air channel is extended and is circular arc around the circumferencial direction of whirlwind tube.

Alternatively, said one-level is got rid of ash mouth and is had two and all be communicated with a said single stage of dust collection chamber at least; Perhaps, said one-level is got rid of the ash mouth and is had two at least, and the quantity of said single stage of dust collection chamber equates that with the quantity that said one-level is got rid of the ash mouth a said one-level is got rid of ash mouthful said single stage of dust collection chamber of connection.

Alternatively; Said dust catcher comprises flow deflector, and this flow deflector is arranged between the outside wall surface of internal face and filtering screen of whirlwind tube and from extending upward and form said cyclone channel with whirlwind tube and filtering screen around the clockwise spiral of the internal face of whirlwind tube near whirlwind tube bottom.

The utility model also provides a kind of dust catcher, and this dust catcher comprises the dirt cup of aforesaid dust catcher.

Compared with prior art, the utlity model has following advantage:

1, the utility model is provided with said air intake passage, upper air duct, crosswind road and said spiralling cyclone channel, and like this, cinder gets rid of ash mouthful entering single stage of dust collection chamber through one-level; Thin ash gets into cyclone channel through turning to the back along the crosswind road, after the cyclone channel inside spin rises, get rid of ash and mouthful get into the secondary dust storage chamber from secondary, air also through filtering holes from cyclone channel entering air-out passage and discharge from the air-out passage; Thereby dust makes speed through fully decay through repeatedly colliding, and dust separation is effective; In addition, one-level is got rid of the ash mouth and is positioned at the top, bottom that the single stage of dust collection chamber holds cinder, and secondary gets rid of the ash mouth and is positioned at the top, bottom that the secondary dust storage chamber holds thin ash; Can at utmost improve the volume of single stage of dust collection chamber and secondary dust storage chamber; Reduce and to topple over number of times, and, can also avoid airborne dust and improve separating effect.

2, because the dirt cup of the utility model has baffle; And the hand of spiral of baffle is consistent with the hand of spiral of cyclone channel, so the air of discharge can be along the inertia whirlwind; The turbulent flow influence that the filtering holes of minimizing filtering screen is brought, the air draught of air-out is more smooth.

3, adopt air intake passage, upper air duct, crosswind road and the cyclone channel of above-mentioned setting, the air movement path is very long.

4,, the space utilization of whirlwind tube bottom is worked a part that is used as single stage of dust collection chamber and secondary dust storage chamber, so maximum can be accomplished in the space of single stage of dust collection chamber and secondary dust storage chamber because single stage of dust collection chamber and secondary dust storage chamber adopt said structure.

5, because said one-level is got rid of the ash mouth towards said first connecting wall, secondary gets rid of the ash mouth towards second connecting wall, so dust can get into single stage of dust collection chamber or secondary dust storage chamber, good separating effect by inertia.

6, get rid of the ash mouth owing to be provided with at least two one-levels, perhaps at least two one-levels are got rid of ash mouth and at least two single stage of dust collection chambers, so dust can repeatedly be dumped into the single stage of dust collection chamber on the direction of circling round of air-flow, improve separating effect.

7, because at least one one-level is got rid of the junction that the ash mouth is arranged on upper air duct and rotation air channel, so, can guarantee that cinder gets into the single stage of dust collection chamber fully, guarantee the abundant separation of cinder.

Description of drawings

Fig. 1 is the vertical view of the dirt cup of the utility model dust catcher;

Fig. 2 is the cutaway view of Fig. 1 along the A-A direction;

Fig. 3 is the cutaway view of Fig. 1 along the B-B direction;

Fig. 4 is the left view of Fig. 1;

Fig. 5 is the cutaway view of Fig. 4 along the C-C direction;

Fig. 6 is the cutaway view of Fig. 4 along the D-D direction.

The specific embodiment

By specifying technology contents, structural feature that the utility model creates, being reached purpose and effect, will combine embodiment and conjunction with figs. to specify below.

See also Fig. 1 to Fig. 6, the dirt cup of the dust catcher of the utility model has air inlet 1, cyclone 2, air outlet 3, air intake passage 4, upper air duct 5, crosswind road 6, single stage of dust collection chamber 7 and secondary dust storage chamber 8.

See also Fig. 2, Fig. 3, Fig. 5 and Fig. 6, said cyclone 2 comprises whirlwind tube 21, filtering screen 22, baffle 23 and flow deflector 24.Said whirlwind tube 21 is that the cylindrical of hollow and its top are provided with secondary and get rid of ash mouthfuls 211 in the present embodiment, and certainly, said whirlwind tube 21 also can be other shape; Such as; Square etc., no matter shape is how, in the design of the utility model; Said whirlwind tube 21 is answered inner hollow at least, so that hold filtering screen 22 and form cyclone channel 25.

Please continue to consult Fig. 2, Fig. 3, Fig. 5 and Fig. 6, said filtering screen 22 is also cylindrical and be positioned at whirlwind tube 21 inside, and these filtering screen 22 inside have the cylindrical air-out passage 221 that is communicated with air outlet 3.Said air-out passage 221 is communicated with air outlet 3 and is construed as through filtering screen 22 filtered airs and can discharges from air outlet 3; And in this embodiment; Said air-out passage 221 connects air outlet 3 through one section smooth transition section 27; Further, in order to make the air of discharging cleaner, can also between changeover portion 27 and air outlet 3, filter 28 be set from air outlet 3.In the present embodiment, said filtering screen 22 also has filtering holes 222, and is concrete, and said filtering holes 222 runs through the sidewall of air-out passage 221.

Please continue to consult Fig. 2, Fig. 3, Fig. 5 and Fig. 6, said baffle 23 is positioned at air-out passage 221, and from the top of air-out passage 221 along clockwise direction screw extend below and form; For the ease of understanding; The sideline that also can think preset length the internal face of air-out passage 221 along clockwise direction screw extend below and form, the length in sideline is less than the diameter of air-out passage 221, like this; Has the space between the sidewall of said baffle 23 and air-out passage 221; Thereby, through the air after filtration can pass through baffle 23 guiding and along inertia direction whirlwind, the influence of avoiding the turbulent flow through the filtering holes 222 of filtering screen 22 to bring; Because the inventor of the utility model finds in the process of design dirt cup; Since filtering holes 222 towards difference, so the air after the filtration flows in the air-out passages 221 through filtering holes 222 and produces turbulent flow from a plurality of directions.

Please continue to consult Fig. 2, Fig. 3, Fig. 5 and Fig. 6; Said cyclone 2 also has the clockwise spiralling cyclone channel 25 in the bottom from whirlwind tube 21 between whirlwind tube 21 and filtering screen 22; Concrete; The dual-side of said flow deflector 24 connect respectively whirlwind tube 21 internal face and filtering screen 22 outside wall surface and be arranged between whirlwind tube 21 and the filtering screen 22, said flow deflector 24 rises and forms said cyclone channel 25 around the clockwise spiral of the internal face of whirlwind tube 21, just the hand of spiral of cyclone channel 25 is consistent with the hand of spiral of baffle 23; Like this, avoided turbulent influence.Said cyclone channel 25 is communicated with air-out passage 221 by the filtering holes 222 of filtering screen 22; Like this; Air can flow to air-out passage 221 and discharges from air outlet 3 from cyclone channel 25; And ash mouthful 211 connection secondary dust storage chambers 8 are got rid of through said secondary in the top of cyclone channel 25, and this secondary gets rid of the top of the bottom of the thin ash of carrying that is positioned at secondary dust storage chamber 8 for grey mouthful 211.

See also Fig. 2 and Fig. 5; Said air intake passage 4 comprises the curved rotation air channel 41 that is positioned at whirlwind tube 21 tops at least; Said arc can be a circular arc, also can be other curved shape, no matter which kind of shape; The air that is mixed with rubbish can receive centrifugal force and be as the criterion in rotation air channel 41; This rotation air channel 41 is provided with along the one-level of the tangential direction (perhaps air-flow circle round tangential direction) in rotation air channel 41 and gets rid of ash mouthfuls 411, and said rotation air channel 41 is positioned at the top, bottom of accepting dust of single stage of dust collection chamber 7, so; Said one-level is got rid of the top, bottom of accepting dust that ash mouth 411 also is positioned at single stage of dust collection chamber 7; Like this, said air intake passage 4 gets rid of the ash mouthful said single stage of dust collection of 411 connections chamber 7 by said one-level, after being provided with like this; The air that gets into from air inlet 1 can be produced by said rotation air channel 41 and circle round, and under centrifugal action, gets rid of that ash mouthfuls 411 gets into said single stage of dust collection chamber 7 and is positioned at the bottom of single stage of dust collection chamber 7 by the gravity effect and makes the bottom of single stage of dust collection chamber 7 accept cinder from said one-level.Said rotation air channel 41 is fixedly connected on the top of whirlwind tube 21, in the present embodiment, because said whirlwind tube 21 is the cylindrical of hollow, so rotation air channel 41 is extended and is circular arc around the circumferencial direction of whirlwind tube 21.In order better to collect the cinder that comprises in the air, in the utility model, can comprise that at least two one-levels get rid of ash mouthful 411 and single stage of dust collection chambers 7; All one-levels are got rid of the ash mouthful said single stage of dust collection chamber 7 of 411 connections; All one-levels are got rid of ash mouthfuls 411 and all are arranged on air and circle round on the tangent line of direction, perhaps, can comprise that also at least two one-levels get rid of ash mouthfuls 411 and get rid of the single stage of dust collection chamber 7 that ash mouthful 411 quantity equate with one-level; An one-level is got rid of ash mouthful single stage of dust collection chamber 7 of 411 connections; Like this, cinder can be centrifugal and fully be separated to single stage of dust collection chamber 7 through repeatedly, no matter adopt the sort of design; The setting in said rotation air channel 41 will be as the criterion to produce centrifugal effect, and said one-level is got rid of ash mouth 411 will be along the direction setting of circling round of air.Said air intake passage 4 also comprises rising passway 42; This rising passway 42 from air inlet 1 place along the outside wall surface of whirlwind tube 21 extend straight up and with the rotation air channel 41 an end be connected; Like this, air can rise and circles round and make the cinder that comprises the air get rid of ash mouthfuls 411 from said one-level to get into said single stage of dust collection chamber 7 along the direction of rotation in rotation air channel 41 along rising passway 42 from air inlet 1.

See also Fig. 3 and Fig. 5, said upper air duct 5 is positioned at the top of whirlwind tube 21 and is positioned at the tangential direction of whirlwind tube 21 and roughly is straight tube-like, and these upper air duct 5 one ends are communicated with rotation air channel 41 and turn to respect to the rotation air channel 41 of air intake passage 4, more specifically; Said dirt cup also comprises one section interface channel 51, and this interface channel 51 is positioned at the top of whirlwind tube 21 and extends along the tangential direction in rotation air channel 41 and forms linear pattern, and said upper air duct 5 is L-shaped and turn to respect to rotation air channel 41 perpendicular to said connection air channel 51; Certainly, upper air duct 5 also can be circular-arc around the outer wall extension of whirlwind tube 21, like this; Also turn to respect to rotation air channel 41, perhaps, said upper air duct 5 also can be around the circumference setting of whirlwind tube 21 and said rotation air channel 41 also around the circumference setting of whirlwind tube 21; Also can reach the purpose that turns to, the setting that turns to is for cinder can get rid of ash mouthful entering single stage of dust collection chambers 7 411 from said one-level fully, and; Because through turning to, said dust can be by repeatedly collision, speed fully decays; So in the utility model, at least one one-level is got rid of ash mouthful 411 junctions near upper air duct 5 and air intake passage 4; Concrete, be arranged on upper air duct 5 and the junction that rotates air channel 41, in the present embodiment; Near interface channel 51 places, that is, turning point.Said upper air duct 5 is used to be communicated with air intake passage 4 and cyclone channel 25 with crosswind road 6, so, be not limited to the setting in the present embodiment.

See also Fig. 3 and Fig. 5; One end in said crosswind road 6 is communicated with the other end of said upper air duct 5; The other end in crosswind road 6 is communicated with the bottom of cyclone channel 25, and is concrete, vertical section 61 of comprising that the other end from upper air duct 5 extends straight down in crosswind road 6 and linkage section 62.Said vertical section 61 constitutes L shaped with said upper air duct 5 and is positioned at said secondary dust storage chamber 8.Said crosswind road 6 is communicated with the bottom of cyclone channel 25 by said linkage section 62.

See also 3, Fig. 5 and Fig. 6; Said dust catcher comprises first connecting wall 9 and second connecting wall 10; Said whirlwind tube 21 comprises with radial section A being the first side wall 212, first diapire 213, second sidewall 214 and second diapire 215 of boundary; Said single stage of dust collection chamber 7 surrounds by said the first side wall 212, said first diapire 213 with the said the first side wall 212 first relative connecting walls 9 at least, and said secondary dust storage chamber 8 surrounds by said second sidewall 214, said second diapire 215 with said second sidewall, the 215 second relative connecting walls 10 at least.Said one-level is got rid of ash mouth 411 towards said first connecting wall 9; Said secondary gets rid of ash mouth 211 towards second connecting wall 10; Said one-level is got rid of ash mouth 411 and is got rid of ash mouth 211 said first connecting wall 9 of distance and second connecting wall, 10 predeterminable ranges respectively with secondary, like this, guarantees the dust separation effect.

See also Fig. 1 to Fig. 6, the course of work of the dirt cup of the dust catcher of the utility model is following:

Be mixed with air 42 vertically risings of rubbish, get into rotation air channel 41 then, because rotation air channel 41 is circular arc from air inlet 1 along rising passway; So airborne rubbish can receive certain centrifugal force, airborne cinder can get rid of ash mouthful entering single stage of dust collection chambers 7 411 from said one-level; And because one-level is got rid of ash mouth 411 towards said first connecting wall 9, so cinder can fall under gravity into the bottom of single stage of dust collection chamber 7 and make the bottom of single stage of dust collection chamber 7 accept cinder; Subsequently; Thin ash turns to the back vertically to fall along said upper air duct 5, crosswind road 6 vertical section 61 at interface channel 51 places, then get into the bottom of cyclone channel 25 from linkage section 62, rises and gets rid of ash mouthful 211 entering secondary dust storage chambers 8 by centrifugal force and inertia force from secondary along cyclone channel 25 spirals then; Because secondary gets rid of ash mouth 211 towards second connecting wall 10; So thin ash can make the bottom of secondary dust storage chamber 8 accept thin ash owing to the bottom that the gravity effect falls into secondary dust storage chamber 8, in this process; Because the setting of filtering holes 222; Air be filtered that hole 222 is filtered and can be along 23 guiding of the baffle air-out passage 221 in after by changeover portion 27 and filter 28 from said air outlet 3 discharges, and obtain pure air, the flow direction of air is shown in Fig. 2, Fig. 3, Fig. 5 and Fig. 6 arrow.In this whole process, the rotation air channel 41 of said air intake passage 4, upper air duct 5 and crosswind road 6 all separate with single stage of dust collection chamber 7 and secondary dust storage chamber 8 and said one-level is got rid of the top that ash mouth 411 is positioned at single stage of dust collection chamber 7, like this; Avoid airborne dust, same, secondary gets rid of the top, bottom that ash mouth 211 also is positioned at secondary dust storage chamber 8; Also can avoid airborne dust, can also improve utilization of space, reduce and topple over number of times; And, because the setting of rotation air channel 41, upper air duct 5, crosswind road 6 and cyclone channel 25, so; Prolong the air channel, dust can be through repeatedly collision, good separating effect.

In addition, the utility model also provides a kind of dust catcher, and this dust catcher comprises the dirt cup of aforesaid dust catcher, and how the dirt cup is arranged at dust catcher is state of the art, repeats no more at this.

Above embodiment is the more preferably specific embodiment a kind of of the utility model, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in the protection domain of the utility model.

Claims

1. the dirt cup of a dust catcher, it has air inlet, air outlet, air intake passage, single stage of dust collection chamber, secondary dust storage chamber and cyclone, and said air intake passage is communicated with air inlet, it is characterized in that:

Said cyclone comprises whirlwind tube and the filtering screen that is positioned at said whirlwind tube; This filtering screen inside has the air-out passage that is communicated with said air outlet; Have between said filtering screen and the said whirlwind tube from the upwardly extending cyclone channel of said whirlwind tube bottom spiral; This cyclone channel is communicated with described air-out passage by the filtering holes on the filtering screen; The top of said cyclone channel is got rid of the ash mouth by the secondary that is arranged at said whirlwind tube sidewall and is communicated with said secondary dust storage chamber, and said secondary gets rid of the top, bottom that holds thin ash that the ash mouth is positioned at said secondary dust storage chamber;

Said air intake passage comprises the curved rotation air channel that is positioned at whirlwind tube top at least; This its tangential direction of upper edge, rotation air channel offers one-level and gets rid of the ash mouth; Said one-level is got rid of the top that the ash mouth is positioned at the bottom that holds cinder of said single stage of dust collection chamber, and said air intake passage gets rid of the ash mouthful said single stage of dust collection of connection chamber by said one-level;

Said dirt cup also comprises the crosswind road that is communicated with above-mentioned air intake passage and said cyclone channel, said crosswind road from the top of said whirlwind tube to extending below.

2. the dirt cup of dust catcher as claimed in claim 1; It is characterized in that: said dirt cup also comprises baffle; This baffle is positioned at said air-out passage and extends below around the axis screw of said filtering screen from the top of said filtering screen, and the hand of spiral of said baffle is consistent with the hand of spiral of said cyclone channel.

3. the dirt cup of dust catcher as claimed in claim 1; It is characterized in that: said whirlwind tube is the cylindrical of hollow; Also be provided with upper air duct between described air intake passage and the crosswind road; Said upper air duct is positioned at the top of said whirlwind tube and extends along the top tangential direction of described whirlwind tube, and an end of said upper air duct communicates with said rotation air channel, and the other end communicates with the top in said crosswind road; Said crosswind road comprises vertical section that extends straight down along the outside wall surface of said whirlwind tube at least, and said upper air duct and said vertical section formation are L shaped.

4. the dirt cup of dust catcher as claimed in claim 3 is characterized in that: at least one said one-level is got rid of the ash mouthful junction near rotation air channel and upper air duct.

5. the dirt cup of dust catcher as claimed in claim 1; It is characterized in that: said dust catcher comprises first connecting wall and second connecting wall; Said whirlwind tube is the cylindrical of hollow and comprises with the radial section is the first side wall, first diapire, second sidewall and second diapire of boundary; Said single stage of dust collection chamber is surrounded by said the first side wall, said first diapire and first connecting wall relative with said the first side wall at least, and said secondary dust storage chamber is surrounded by said second sidewall, said second diapire and second connecting wall relative with said second sidewall at least.

6. the dirt cup of dust catcher as claimed in claim 5 is characterized in that: said one-level is got rid of ash mouthful towards said first connecting wall, and said secondary gets rid of ash mouthful towards second connecting wall.

7. the dirt cup of dust catcher as claimed in claim 1; It is characterized in that: said whirlwind tube is the cylindrical of hollow; Said air intake passage also comprises rising passway; Rising passway from the air inlet place outside wall surface along the whirlwind tube extend straight up and be communicated with said rotation air channel, said rotation air channel is extended and is circular arc around the circumferencial direction of said whirlwind tube.

8. the dirt cup of dust catcher as claimed in claim 1 is characterized in that: said one-level is got rid of the ash mouth and is had two and all be communicated with a said single stage of dust collection chamber at least; Perhaps, said one-level is got rid of the ash mouth and is had two at least, and the quantity of said single stage of dust collection chamber equates that with the quantity that said one-level is got rid of the ash mouth a said one-level is got rid of ash mouthful said single stage of dust collection chamber of connection.

9. the dirt cup of dust catcher as claimed in claim 1; It is characterized in that: said dust catcher comprises flow deflector, and this flow deflector is arranged between the outside wall surface of internal face and filtering screen of whirlwind tube and spin air duct bottom extends upward and forms said cyclone channel with whirlwind tube and filtering screen around the clockwise spiral of the internal face of whirlwind tube.

10. dust catcher, it is characterized in that: it comprises the dirt cup of any one described dust catcher in the claim 1 to 9.