CN105266718A - Multi-stage cyclone machanism and dust cup structure - Google Patents
Multi-stage cyclone machanism and dust cup structure Download PDFInfo
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- CN105266718A CN105266718A CN201510736327.XA CN201510736327A CN105266718A CN 105266718 A CN105266718 A CN 105266718A CN 201510736327 A CN201510736327 A CN 201510736327A CN 105266718 A CN105266718 A CN 105266718A
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- cylinder
- cyclonic
- dirt
- stage cyclone
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1608—Cyclonic chamber constructions
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- Mechanical Engineering (AREA)
- Cyclones (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
The present invention discloses a multi-stage cyclone machanism which comprises an independent first stage cyclone cylinder, a first stage cyclone net cover arranged in the first stage cyclone cylinder, and a second stage cyclone turbine component in the first stage cyclone net. A first stage cyclone space is formed between the first stage cyclone cylinder and the first stage cyclone net cover, and the first stage cyclone cylinder is detachably installed outside the second stage cyclone turbine component. One side of a first stage cyclone cylinder side wall close to the bottom is provided with a first stage dust throwing opening, and the top of the first stage cyclone cylinder side wall is provided with a first stage cyclone air inlet. The first stage cyclone cylinder is designed as an independent cyclone cylinder structure, and a simple partition is formed between the bottom of the first stage cyclone cylinder and the first stage cyclone net cover. The dust thrown from the first stage dust throwing opening is rotated to the opposite side of the first stage dust throwing opening along a dust cup wall, since the first cyclone space at the opposite side and the first dust cylinder are isolated, thus the dust loses power to fall to the bottom of the first stage dust cylinder to maintain relative stationary, the dust back sucking of the first stage cylinder is effectively prevented, and the filtering efficiency of the whole dust cup is improved.
Description
Technical field
The invention belongs to the manufacturing technology field of dust catcher, be specifically related to a kind of multi-stage cyclone cyclone body and there is the dust catcher of this multi-stage cyclone cyclone body.
Background technology
The dirt gas clastotype of cleaner dust-collection part mostly adopts first-stage centrifugal formula clastotype or dirt bag filtration pattern, and the filter efficiency of these two kinds of clastotypes is low and easily block.Also has a kind of multi-stage cyclone dust cup of dust collector at present, adopt two-stage separate type fuselage, generally comprise two-stage dirt gas separation structure, first order structure is in order to the large-scale dirt in filtered air, second level structure is for separating of collecting the foreign material such as small-sized dust granule, and secondary dirt gas separation structure generally to be matched with the cyclone body being provided with some whirlwind mouths by fuselage filter cover plate and forms secondary whirlwind.
At present, the one cyclonic space of traditional multi-stage cyclone system is that dirt cup main body and one cyclonic guard combine, thus formation one-level contains Transitional Space and one cyclonic space is in the same space, the shortcoming of this multi-stage cyclone system is, major part ash is got rid of one-level by centrifugal action and contains in Transitional Space by one cyclonic space, meanwhile, the dust contained in Transitional Space is easily brought into secondary rotary wind system by the meshed one cyclonic guard of band, thus cause the filtration grade of whole dirt cup to decline, especially for the hand-held dirt cup structure that dirt cup is highly less, more easily there is above-mentioned condition, thus, have impact on the dust collection efficiency of dust catcher.
Therefore, industry needs a kind of novel independently multi-stage cyclone cyclone structure badly, to solve dust is easily fallen into cyclone system problem by Sheng Transitional Space.
Summary of the invention
In view of this, the invention provides a kind of self-existent multi-stage cyclone system, comprise an independently one cyclonic cylinder, be located at the one cyclonic guard of one cyclonic cylinder inside, be located at the secondary rotary wind turbine assembly of one cyclonic guard inside, bottom and the one cyclonic guard of cyclone cylinder form simple and easy partition, have in the bottom sides of cyclone cylinder and independent get rid of grey mouth, due to tornado flow to reason, make from get rid of dust that grey mouth throws away along dirt wall of cup to get rid of grey mouth to sideway swivel, because the one cyclonic space of offside and one-level contain the isolation of Transitional Space, dust is run out of steam thus drops on bottom dirt cup to keep geo-stationary, one-level is effectively prevented to contain the dust suck-back of Transitional Space.
A kind of multi-stage cyclone cyclone body that object according to the present invention proposes, comprise one independently one cyclonic cylinder, be located at the one cyclonic guard of described one cyclonic cylinder inside, be located at the secondary rotary wind turbine assembly of described one cyclonic guard inside, one cyclonic space is formed between described one cyclonic cylinder and one cyclonic guard, described one cyclonic cylinder sidewall is provided with one-level near the side of bottom and gets rid of grey mouth, and the top of described one cyclonic cylinder sidewall is provided with one cyclonic cylinder air inlet.
Preferably, the below of described secondary rotary wind turbine assembly is provided with secondary dirt cylinder, and the bottom of described secondary rotary wind turbine assembly forms the top of described secondary dirt cylinder.
Preferably, space is provided with between the inwall of described secondary rotary wind turbine assembly and described one cyclonic guard, secondary dirt gas separation air channel after described space is separated for the formation of one-level dirt gas, described one cyclonic cylinder is implemented one-level dirt gas with one cyclonic guard to the elementary dirt gas entering described multi-stage cyclone cyclone body and is separated, secondary dirt gas after separation enters secondary rotary wind turbine assembly and carries out the separation of secondary dirt gas, is provided with a secondary gets rid of grey mouth at the sidewall of described secondary rotary wind turbine assembly near bottom position.
Preferably, described secondary rotary wind turbine assembly comprises the spiral dirt air separation being arranged at secondary rotary wind turbine assembly upper end, with dust air by one cyclonic guard carry out one-level dirt gas be separated after, be separated air channel by secondary dirt gas at least partially and guide to spiral dirt air separation, and under the guiding of described spiral dirt air separation, the air-flow rotated at the bottom of cylinder is formed at secondary rotary wind turbine assembly inwall, dust in described air-flow under centrifugal force drives under to be threaded to tin at the bottom of and be collected in secondary dirt cylinder, air in swirling eddy is extracted out the air outlet place of spiral secondary spout travel fatigue gas separation structure by negative pressure, realize secondary dirt gas to be separated.
Preferably, described one cyclonic cylinder is detachably installed on described secondary rotary wind turbine component external.
Preferably, the top of described one cyclonic cylinder connects one cyclonic lid, and described one cyclonic lid inside adopts MIF material, the outer wrap MIF frame encapsulate assembly of one cyclonic lid.
Preferably, the bottom of described secondary dirt cylinder is provided with secondary dirt cover to be opened/closed, makes secondary dirt cylinder form inner confined space.
Preferably, the faying face of described secondary dirt cover and secondary dirt cylinder is provided with secondary dirt cover sealing ring.
The present invention also proposes a kind of vacuum cleaner dust cup structure, comprises this kind of multi-stage cyclone cyclone body, and the opposite side space of described multi-stage cyclone cyclone body forms the one-level dirt cylinder of described vacuum cleaner dust cup structure.
Preferably, vacuum cleaner dust cup structure also comprises fuselage air inlet, and described fuselage air inlet is connected with one cyclonic cylinder air inlet.
Compared with prior art, the advantage of multi-stage cyclone cyclone body disclosed by the invention and vacuum cleaner dust cup structure is:
One cyclonic cylinder is designed to independently cyclone cylinder structure, simple and easy partition is formed between the bottom of one cyclonic cylinder and one cyclonic guard, independent one-level is set in the bottom sides of one cyclonic cylinder and gets rid of grey mouth, due to tornado flow to reason, make from one-level get rid of dust that grey mouth throws away along dirt wall of cup to get rid of grey mouth to sideway swivel, due to the one cyclonic space of offside and the isolation of one-level dirt cylinder, dust is run out of steam thus drops on bottom one-level dirt cylinder to keep geo-stationary, effectively prevent the dust suck-back of one-level dirt cylinder, improve the filter efficiency of whole dirt cup, this design is simultaneously beneficial to the rotary speed improving dirt gas, thus raising separating effect.
Independently multi-stage cyclone cyclone body effectively can improve the module dismounting of multi-stage cyclone cyclone body, and one cyclonic cylinder can dismounting in secondary rotary wind turbine component external, be convenient to clear up dust easily.
The outer wrap MIF frame encapsulate assembly of one cyclonic lid, this material is firm, corrosion-resistant and the life-span is long.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of multi-stage cyclone cyclone body in the present invention
Fig. 2 is the disassemblying structure schematic diagram of multi-stage cyclone cyclone body in the present invention
The Reference numeral related in accompanying drawing and part illustrate:
1, one cyclonic cylinder; 2, one cyclonic guard; 3, secondary rotary wind turbine assembly; 4, one-level gets rid of grey mouth; 5, one cyclonic cylinder air inlet; 6, secondary dirt cylinder; 7, spiral dirt air separation; 8, spiral wind impeller; 9, lead tangent plane; 10, one cyclonic lid; 11, MIF frame encapsulate assembly; 12, secondary dirt cover; 13, secondary dirt cover sealing ring.
Detailed description of the invention
Traditional multi-stage cyclone system, one cyclonic space is that dirt cup main body and one cyclonic guard combine, thus formation one-level contains Transitional Space and one cyclonic space is in the same space, major part ash is got rid of one-level by centrifugal action and contains in Transitional Space by one cyclonic space, meanwhile, the dust contained in Transitional Space is easily brought into secondary rotary wind system by the meshed one cyclonic guard of band, thus is caused the filtration grade of whole dirt cup to decline.
The present invention is directed to deficiency of the prior art, provide a kind of multi-stage cyclone cyclone body, comprise an independently one cyclonic cylinder.To be clearly and completely described technical scheme of the present invention by detailed description of the invention below.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please also refer to Fig. 1 to Fig. 2, a kind of multi-stage cyclone cyclone body, comprise one independently one cyclonic cylinder 1, be located at the one cyclonic guard 2 of one cyclonic cylinder 1 inside, be located at the secondary rotary wind turbine assembly 3 of one cyclonic guard 2 inside, one cyclonic space is formed between one cyclonic cylinder 1 and one cyclonic guard 2, and one cyclonic cylinder 1 is removably installed in the outside of secondary rotary wind turbine assembly 3, be provided with one-level at one cyclonic cylinder 1 sidewall near the side of bottom and get rid of grey mouth 4, the top of one cyclonic cylinder 1 sidewall is provided with one cyclonic cylinder air inlet 5.Be provided with a secondary dirt cylinder 6 in the below of secondary rotary wind turbine assembly 3, the bottom of secondary rotary wind turbine assembly 3 forms the top of secondary dirt cylinder 6.In vacuum cleaner dust cup structure, adopt this multi-stage cyclone cyclone body, the opposite side space of multi-stage cyclone cyclone body forms the one-level dirt cylinder (not shown) of vacuum cleaner dust cup structure.One cyclonic cylinder 1 is designed to independently cyclone cylinder structure, formed between the bottom of one cyclonic cylinder 1 and one cyclonic guard 2 and cut off easily, one cyclonic cylinder 1 is provided with independent one-level and gets rid of grey mouth 4 simultaneously, due to tornado flow to reason, make from one-level get rid of dust that grey mouth 4 throws away to get rid of along dirt wall of cup to one-level grey mouth 4 to sideway swivel, due to the one cyclonic space of offside and the isolation of one-level dirt cylinder, dust is run out of steam thus drops on bottom one-level dirt cylinder to keep geo-stationary, effectively prevent the dust suck-back of one-level dirt cylinder, improve the filter efficiency of whole dirt cup, this design is simultaneously beneficial to the rotary speed improving dirt gas, thus raising separating effect.This vacuum cleaner dust cup structure is provided with fuselage air inlet (not shown), and fuselage air inlet is connected with one cyclonic cylinder air inlet 5, ensures that wind enters, and is separated to carry out one-level dirt gas.
Space is provided with between secondary rotary wind turbine assembly 3 and the inwall of one cyclonic guard 2, secondary dirt gas separation air channel after space is separated for the formation of one-level dirt gas, one cyclonic cylinder 1 is implemented one-level dirt gas with one cyclonic guard 2 to the elementary dirt gas entering multi-stage cyclone cyclone body and is separated, secondary dirt gas after separation enters secondary rotary wind turbine assembly and carries out the separation of secondary dirt gas, be provided with a secondary at the sidewall of secondary rotary wind turbine assembly near bottom position and get rid of grey mouth (not shown), when air flows, the top air pressure of secondary rotary wind turbine assembly is greater than bottom air pressure, dust also flows from top to bottom, the dust of dust catcher when converting attitude and using is prevented to flow backwards, dust in secondary dirt gas under centrifugal force drives under to be threaded to tin at the bottom of, getting rid of grey mouth through this secondary enters in the space of secondary dirt cylinder 6, air in swirling eddy is extracted out by negative pressure, realize second level dirt gas to be separated.
Secondary rotary wind turbine assembly 3 also comprises the spiral dirt air separation 7 being arranged at secondary rotary wind turbine assembly 3 upper end, with dust air by one cyclonic guard 2 carry out one-level dirt gas be separated after, be separated air channel by secondary dirt gas at least partially and guide to spiral dirt air separation 7, and under the guiding of spiral dirt air separation 7, the air-flow rotated at the bottom of cylinder is formed at the inwall of secondary rotary wind turbine assembly 3, dust in air-flow under centrifugal force drives under to be threaded to tin at the bottom of and be collected in secondary dirt cylinder 6, air in swirling eddy is extracted out the air outlet place of spiral secondary spout travel fatigue gas separation structure by negative pressure, realize secondary dirt gas to be separated.Spiral dirt air separation 7 comprises the spiral wind impeller 8 for generation of secondary whirlwind, and spiral wind impeller 8 is provided with some downward-sloping blades, and the flow direction that blade can retrain dirt gas is tilted to lower underriding to form spiral air flow.Spiral dirt air separation 7 also comprises the interior annulus being arranged at spiral wind impeller 8 inner ring, the sidewall that interior annulus is corresponding with the air outlet of spiral wind impeller 8 is provided with some guiding tangent planes 9, and guiding tangent plane 9 retrains dirt air-flow to start to form rotation status to the outer shroud of spiral wind impeller.
The top of one cyclonic cylinder 1 connects one cyclonic lid 10, is formed seal with one cyclonic cylinder 1, and one cyclonic lid 10 inside adopts MIF material, and outer wrap MIF frame encapsulate assembly 11, the MIF material of one cyclonic lid is firm, corrosion-resistant and the life-span is long.On the top of one cyclonic cylinder 1, namely with one cyclonic lid 10 intersection, arrange filter, filter cotton thought by filter, and micro-concentration dirt gas again carries out final filtration by filter cotton after fuselage air outlet.
In addition, be provided with secondary dirt cover 12 to be opened/closed in the bottom of secondary dirt cylinder 6, make secondary dirt cylinder 6 form inner confined space.Secondary dirt cover 12 and the faying face of secondary dirt cylinder 6 arrange secondary dirt cover sealing ring 13, improves sealing, prevent dust from leaking outside.Secondary dirt cover 12 is arranged on the end of a rotating component, and rotating component rotarily drives secondary dirt cover 12 and covers or depart from secondary dirt cylinder 6.A pressing can be provided with protruding in one-level dirt cylinder, pressing projection just can deduct when secondary dirt cylinder 6 stretches into one-level dirt cylinder and assembles rotary components, secondary dirt cover 12 is made to cover the bottom of secondary dirt cylinder 6, when secondary dirt cylinder 6 will be taken out, secondary dirt cover 12 is opened automatically at gravity and under pressing convex role, thus facilitates user to carry out disposable ash discarding operation.
Multi-stage cyclone cyclone body in the present invention, comprise one independently one cyclonic cylinder 1, be located at the one cyclonic guard 2 of one cyclonic cylinder 1 inside, be located at the secondary rotary wind turbine assembly 3 of one cyclonic guard 2 inside, one cyclonic space is formed between one cyclonic cylinder 1 and one cyclonic guard 2, and one cyclonic cylinder 1 is removably installed in the outside of secondary rotary wind turbine assembly 3, be provided with one-level at one cyclonic cylinder 1 sidewall near the side of bottom and get rid of grey mouth 4, the top of one cyclonic cylinder 1 sidewall is provided with one cyclonic cylinder air inlet 5.One cyclonic cylinder 1 is designed to independently cyclone cylinder structure, formed between the bottom of one cyclonic cylinder 1 and one cyclonic guard 2 and cut off easily, one cyclonic cylinder 1 is provided with independent one-level and gets rid of grey mouth 4 simultaneously, from one-level get rid of dust that grey mouth 4 throws away to get rid of along dirt wall of cup to one-level grey mouth 4 to sideway swivel, due to the one cyclonic space of offside and the isolation of one-level dirt cylinder, dust is run out of steam thus drops on bottom one-level dirt cylinder 6 to keep geo-stationary, effectively prevent the dust suck-back of one-level dirt cylinder, improve the filter efficiency of whole dirt cup, this design is simultaneously beneficial to the rotary speed improving dirt gas, thus raising separating effect.In addition, one cyclonic cylinder can dismounting in secondary rotary wind turbine component external, be convenient to clear up dust easily.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (10)
1. a multi-stage cyclone cyclone body, it is characterized in that: comprise one independently one cyclonic cylinder, be located at the one cyclonic guard of described one cyclonic cylinder inside, be located at the secondary rotary wind turbine assembly of described one cyclonic guard inside, one cyclonic space is formed between described one cyclonic cylinder and one cyclonic guard, described one cyclonic cylinder sidewall is provided with one-level near the side of bottom and gets rid of grey mouth, and the top of described one cyclonic cylinder sidewall is provided with one cyclonic cylinder air inlet.
2. multi-stage cyclone cyclone body as claimed in claim 1, it is characterized in that: the below of described secondary rotary wind turbine assembly is provided with secondary dirt cylinder, the bottom of described secondary rotary wind turbine assembly forms the top of described secondary dirt cylinder.
3. multi-stage cyclone cyclone body as claimed in claim 1, it is characterized in that: between the inwall of described secondary rotary wind turbine assembly and described one cyclonic guard, be provided with space, secondary dirt gas separation air channel after described space is separated for the formation of one-level dirt gas, described one cyclonic cylinder is implemented one-level dirt gas with one cyclonic guard to the elementary dirt gas entering described multi-stage cyclone cyclone body and is separated, secondary dirt gas after separation enters secondary rotary wind turbine assembly and carries out the separation of secondary dirt gas, be provided with a secondary at the sidewall of described secondary rotary wind turbine assembly near bottom position and get rid of grey mouth.
4. multi-stage cyclone cyclone body as claimed in claim 2, it is characterized in that: described secondary rotary wind turbine assembly comprises the spiral dirt air separation being arranged at secondary rotary wind turbine assembly upper end, with dust air by one cyclonic guard carry out one-level dirt gas be separated after, be separated air channel by secondary dirt gas at least partially and guide to spiral dirt air separation, and under the guiding of described spiral dirt air separation, the air-flow rotated at the bottom of cylinder is formed at secondary rotary wind turbine assembly inwall, dust in described air-flow under centrifugal force drives under to be threaded to tin at the bottom of and be collected in secondary dirt cylinder, air in swirling eddy is extracted out the air outlet place of spiral secondary spout travel fatigue gas separation structure by negative pressure, realize secondary dirt gas to be separated.
5. multi-stage cyclone cyclone body as claimed in claim 1, is characterized in that: described one cyclonic cylinder is detachably installed on described secondary rotary wind turbine component external.
6. multi-stage cyclone cyclone body as claimed in claim 1, is characterized in that: the top of described one cyclonic cylinder connects one cyclonic lid, and described one cyclonic lid inside adopts MIF material, the outer wrap MIF frame encapsulate assembly of one cyclonic lid.
7. multi-stage cyclone cyclone body as claimed in claim 2, is characterized in that: the bottom of described secondary dirt cylinder is provided with secondary dirt cover to be opened/closed, makes secondary dirt cylinder form inner confined space.
8. multi-stage cyclone cyclone body as claimed in claim 7, is characterized in that: the faying face of described secondary dirt cover and secondary dirt cylinder is arranged secondary dirt cover sealing ring.
9. a vacuum cleaner dust cup structure, is characterized in that: comprise the multi-stage cyclone cyclone body according to any one of claim 1-7, and the opposite side space of described multi-stage cyclone cyclone body forms the one-level dirt cylinder of described vacuum cleaner dust cup structure.
10. a kind of vacuum cleaner dust cup structure as claimed in claim 9, is characterized in that: also comprise fuselage air inlet, and described fuselage air inlet is connected with one cyclonic cylinder air inlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711269868.1A CN107874706A (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
| CN201510736327.XA CN105266718B (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736327.XA CN105266718B (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711269868.1A Division CN107874706A (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
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| Publication Number | Publication Date |
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| CN105266718A true CN105266718A (en) | 2016-01-27 |
| CN105266718B CN105266718B (en) | 2018-01-30 |
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| CN201711269868.1A Pending CN107874706A (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
| CN201510736327.XA Active CN105266718B (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711269868.1A Pending CN107874706A (en) | 2015-11-03 | 2015-11-03 | A kind of multi-stage cyclone cyclone body and dirt cup structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20180100201A (en) * | 2016-01-22 | 2018-09-07 | 다이슨 테크놀러지 리미티드 | Vacuum cleaner |
| CN109068907A (en) * | 2016-03-31 | 2018-12-21 | Lg电子株式会社 | Cleaning device |
| CN112120587A (en) * | 2020-09-10 | 2020-12-25 | 苏州斯卫浦电器有限公司 | Dust shield structure in dust cup of dust collector |
| US10912432B2 (en) | 2016-03-31 | 2021-02-09 | Lg Electronics Inc. | Cleaner |
| US11166607B2 (en) | 2016-03-31 | 2021-11-09 | Lg Electronics Inc. | Cleaner |
| US11172798B2 (en) | 2016-03-31 | 2021-11-16 | Lg Electronics Inc. | Cleaner |
| US11229337B2 (en) | 2016-03-31 | 2022-01-25 | Lg Electronics Inc. | Cleaner |
| US12121199B2 (en) | 2016-03-31 | 2024-10-22 | Lg Electronics Inc. | Cleaner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105266718B (en) | 2018-01-30 |
| CN107874706A (en) | 2018-04-06 |
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