EP2749193B1 - Aspirateur multi filtre avec dispositif de nettoyage à secousses indépendant pour chaque filtre - Google Patents
Aspirateur multi filtre avec dispositif de nettoyage à secousses indépendant pour chaque filtre Download PDFInfo
- Publication number
- EP2749193B1 EP2749193B1 EP13199322.2A EP13199322A EP2749193B1 EP 2749193 B1 EP2749193 B1 EP 2749193B1 EP 13199322 A EP13199322 A EP 13199322A EP 2749193 B1 EP2749193 B1 EP 2749193B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- vacuum cleaner
- duct
- shaker
- vacuum chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims description 38
- 230000003213 activating effect Effects 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 10
- 230000004913 activation Effects 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
-
- 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
- A47L9/12—Dry filters
- A47L9/127—Dry filters tube- or sleeve-shaped
-
- 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
- A47L9/20—Means for cleaning filters
Definitions
- the invention relates to the sector of industrial vacuum cleaners.
- the invention concerns a multi-filter vacuum cleaner with independent shaker cleaning device for each filter.
- the filters are arranged between a chamber in which a vacuum is created by a suction turbine and a chamber for inlet of the dusty air and collection and accumulation of said dust once separated from the flow sucked in.
- the filters normally comprise one or more cartridges positioned parallel to one another, each of cylindrical shape, with the lateral surface consisting of a sheet of pleated porous material, the lower base closed and the upper base having a circular opening through which the air flows, said air having been previously filtered by passing through said porous material.
- some vacuum cleaners are provided with a cleaning device, of electromechanical or pneumatic type, comprising a striking head adapted to perform a mechanical shaking action on the vacuum cleaner filters.
- each filter is always cleaned, disadvantageously, while the vacuum cleaner is operating and the filter is in use, and therefore the cloud of dust dislodged from the walls of the filter shaken by the action of the striking head is immediately re-deposited on the surface of said filter, sucked in by the suction turbine.
- the cleaning effect is therefore annulled or in any case rendered ineffective.
- the suction would have to be interrupted every time a filter is cleaned.
- the disadvantage of the reverse air filter cleaning devices is that they produce a cleaning air-flow which carries a certain quantity of dust and dirt, which is usually released outside. This is evidently disadvantageous for the operator who performs the filter cleaning. Moreover, said cleaning air-flow might also contain solid particles which are even more stinging for the eyes and the lungs, or can even be harmful.
- Document DE 20 2004 012 911 U1 discloses a multi-filter vacuum cleaner with independent shaker cleaning device for each filter, comprising shaker means with striking head, which can be selectively activated and are adapted to acting on each filter.
- Each shaker means with striking head is positioned internally to the corresponding connecting duct, along its longitudinal axis.
- Each shaker mean with striking head is positioned in series with the respective cartridge filter, connecting duct and suction turbine, and is crossed by the primary flow of dusty air.
- the aim of the invention is therefore to provide a multi-filter vacuum cleaner with independent shaker cleaning device for each filter which has a particularly efficient mechanical cleaning effect, without affecting the general operation of the vacuum cleaner and in particular without interrupting the work thereof.
- a further aim of the invention is to provide a cleaning device which is easy and inexpensive to produce, that can be combined with any type of vacuum cleaner, and can also be used in environments with the risk of explosion, in full compliance with the relevant safety regulations.
- a multi-filter vacuum cleaner with independent shaker cleaning device for each filter comprising shaker means with striking head, which can be selectively activated and are adapted to act on each filter, wherein said vacuum cleaner comprises:
- connection ducts comprise a plurality of openings adapted to connect the inside of the corresponding filter to said vacuum chamber to ensure suction of the primary flow of dusty air.
- valve means comprise:
- said activating means of said piston comprise a solenoid or a pneumatic actuator.
- said elastic return means comprise a helical spring coaxial to said duct, arranged between the base of said piston and a ring fixed to a terminal section of said duct.
- said activating means cause the movement of said piston to close said duct, while said elastic return means cause the inverse movement of said piston to open said duct.
- said vacuum cleaner comprises a plurality of turbines, each independently connected to a vacuum chamber.
- connection duct is interposed between each vacuum chamber and each filter arranged between each vacuum chamber and each filter arranged with an outlet adapted to connect the inside of the corresponding filter to said vacuum chamber to ensure suction of the primary flow of dusty air by activating each turbine.
- said valve means comprise:
- said elastic return means comprise a helical spring positioned in said vacuum chamber, between said diaphragm and said turbine.
- the activation of one of said turbines causes the movement of said diaphragm to open the respective duct, while said elastic return means cause the inverse movement of said diaphragm to close said duct.
- said shaker means comprise a striking head, electromechanically activated by a solenoid or by a cam vibrator, adapted to strike said filter to exert a mechanical vibrating action to perform effective cleaning.
- the main advantage of the invention is given by the fact that said shaker means are active on a given cartridge filter only when the corresponding connecting duct between the filter and the turbine is closed by respective valve means, so as to isolate each individual filter during its mechanical cleaning phase with respect to the remaining filters of the vacuum cleaner which remain active, thus optimising the cleaning action.
- valve means described do not require any additional motor for their activation, thus making the cleaning device, and the entire vacuum cleaner, lighter, cheaper and safer, as it can also be used in environments with the risk of explosion or in combination with operating machines that can generate sparks.
- the embodiment of the invention that provides for each filter a single suction chamber directly connected to a single turbine, prevents the shaker means from being lapped by the flow of dusty air sucked and is even cheaper as the use of several turbines in one single vacuum cleaner significantly reduces the suction power required by each of them and therefore saves on the cost of the individual turbines which, in this way, can also be much smaller.
- the lower electrical power requirement and the very compact overall dimensions allow the cleaning device to be easily used on a wide range of vacuum cleaner models, which can also be used on building sites with low availability of electricity, such as civil domestic building sites.
- the invention concerns a vacuum cleaner 100, particularly of industrial type, provided with a first type of independent shaker cleaning device for each filter.
- the vacuum cleaner 100 comprises essentially a suction turbine 1 of a primary flow of dusty air F, associated with a vacuum chamber 2 and activated by a control unit (not illustrated), a plurality of cartridge filters 6 to clean said primary flow of dusty air F, each connected to said vacuum chamber 2, and containment means 7 for containing the dust sucked in and retained by said filters 6.
- Said turbine 1 is adapted to create a vacuum in said chamber 2.
- Said containment means 7 consist essentially of a tank provided with an outlet for disposing of the dust sucked, according to prior art.
- Said filter cleaning device essentially comprises:
- Said shaker means 9 with striking head comprise for each filter 6, in parallel to the respective valve means 3, an electromechanical solenoid filter shaker of known type.
- said filter shaker can be of the cam vibrator type or of another per se known type.
- Said shaker means 9 are controlled by the control unit of the vacuum cleaner 100, simultaneously with the respective valve means 3, and produce a mechanical cleaning action, thanks to the rapidly alternating vertical translation movement of a striking head 17 adapted to repeatedly strike the top surface of the respective filter 6 with which they are associated, causing the vibration thereof and contributing to detachment of the dust.
- each duct 8 comprises a plurality of lateral openings 4 adapted to connect the inside of the duct 8 to said vacuum chamber 2 to ensure suction of the primary flow of dusty air F.
- Each duct 8 is associated with said valve means 3, adapted to reversibly close said openings 4 during the mechanical cleaning phase of the corresponding cartridge filter 6.
- Said valve means 3 comprise, for each filter 6, a piston 10, means for activating said piston 10 controlled by said control unit and elastic return means 12.
- Said activating means comprise a solenoid 11 of known type.
- said activating means comprise a pneumatic actuator provided substantially with a solenoid valve and a compressed air supply line.
- Said piston 10 slides in said duct 8 controlled by said activating means against the action of corresponding elastic return means 12.
- the alternating movement of said piston 10 causes selectively and reversibly the opening ( Fig. 3 ) and closing ( Fig. 4 ) of said openings 4.
- the piston 10 slides with a slight play with respect to the inner surface of the duct 8, so that the alternating movement of the piston 10 can cause substantially airtight opening and closing of the openings 4.
- the duct 8 is made of metal, while the piston is made of self-lubricating material, for example Teflon® or Nylon.
- Said elastic return means 12 comprise a helical spring coaxial to said duct 8, arranged between the base of said piston 10 and a ring 13 fixed to a terminal section of said duct 8.
- the helical spring has a frustoconical shape to self-centre and better adapt to the working conditions.
- the invention concerns a vacuum cleaner 100 provided with a second type of shaker cleaning device independent for each filter.
- the vacuum cleaner 100 comprises a plurality of suction turbines, for example three, 1a, 1b, 1c, arranged according to the vertexes of an equilateral triangle, each one independently connected to its own vacuum chamber 2a, 2b, 2c.
- the turbines can be of the type with electric motor with collector.
- FIG. 1 show two cartridge filters 6, two corresponding vacuum chambers 2a, 2b connected in turn to two suction turbines 1a, 1b which can be activated by a control unit (not illustrated).
- a connecting duct 8 is interposed between each vacuum chamber 2a, 2b and each filter 6, a connecting duct 8 is interposed provided with an outlet 5 adapted to connect the inside of the corresponding filter 6 to said vacuum chamber 2a, 2b to ensure suction of the primary flow of dusty air F by means of the activation of each turbine 1a, 1b.
- said valve means 3 comprise, for each filter 6, a diaphragm 14 and elastic return means 15.
- Said diaphragm 14 slides in said vacuum chamber 2a, 2b due to the suction force of the corresponding turbine 1a, 1b against the action of elastic return means 15 so as to cause, also in this case, by means of its alternating movement, the opening ( Fig. 6 ) and closing ( Fig. 7 ) of said outlet 5.
- Said diaphragm 14 has a circular shape and an area slightly larger than the area of the transverse section of the connecting duct 8 against which it has to abut.
- Said diaphragm 14, on its face facing the turbine 1a, 1b, 1c, is provided with a plurality of spacer teeth 16 adapted to define a plurality of openings for the flow of dusty air F even when the diaphragm 14 is sucked by the suction force of the turbine 1a, 1b and is positioned against it.
- Said elastic return means 15 comprise a helical spring contained in said vacuum chamber 2a, 2b, arranged between said diaphragm 14 and said turbine 1a, 1b.
- said electromechanical shaker means 9 with striking head comprise for each filter 6, parallel to the respective valve means 3, an electromechanical filter shaker of known type with solenoid or cam.
- the flow of dusty air F passes through the cartridge filters 6 and from here reaches the vacuum chamber 2, 2a, 2b, 2c from where it is emitted clean into the external environment via the turbine 1, 1a, 1b, 1c.
- control unit is pre-set to activate the respective shaker means 9 and simultaneously ensure that the valve means 3 close the connecting duct 8 between the filter 6 to be cleaned and the vacuum chamber 2, 2a, 2b, 2c to prevent passage of the flow of dusty air F sucked, so that said shaker means are active on a given cartridge filter 6 only when the corresponding connecting duct 8 is closed.
- control unit ensures that the valve means 3 re-open the connecting ducts 8 and the filter 6 is re-placed in a vacuum thanks to the restored connection to the vacuum chamber 2, 2a, 2b, 2c.
- valve means comprise a piston 10 activated by a solenoid or a pneumatic actuator
- the control unit acts directly to control said piston
- the control unit acts indirectly to activate said diaphragm 14 by simply commanding the operation of said suction turbines 1a, 1b, 1c.
Claims (12)
- Aspirateur multi filtre (100) avec dispositif de nettoyage à secousses indépendant pour chaque filtre comprenant des moyens de secouage (9) avec tête de frappe, qui peuvent être activés de manière sélective et sont adaptés pour agir sur chaque filtre,
où ledit aspirateur comprend :- au moins une turbine d'aspiration (1, 1a, 1b, 1c) pour aspirer un flux primaire d'air poussiéreux (F), associée à une chambre d'aspiration (2, 2a, 2b, 2c) ;- une multitude de filtres à cartouches (6) pour nettoyer ledit flux primaire d'air poussiéreux (F), chacun étant relié à ladite chambre à vide (2, 2a, 2b, 2c) ;- des moyens de confinement (7) pour contenir les poussières aspirées et retenues par lesdits filtres à cartouches (6) ;- une unité de commande électrique ;où ledit dispositif de nettoyage à secousses comprend :- une multitude de conduits de raccordement (8) interposés chacun entre l'un desdits filtres à cartouche (6) et ladite chambre d'aspiration (2, 2a, 2b, 2c) ;- des moyens à vanne (3), qui peuvent être activés de manière sélective et sont adaptés pour fermer de manière réversible lesdits conduits de raccordement (8),où ladite unité de commande commande au moins indirectement lesdits moyens à vanne (3) et active directement lesdits moyens de secouage (9), de sorte que lesdits moyens de secouage (9) ne sont actifs sur un filtre à cartouche donné (6) que lorsque le conduit de raccordement correspondant (8) est fermé,
caractérisé par le fait que lesdits moyens de secouage (9) avec tête de frappe sont positionnés à l'extérieur desdits conduits de raccordement (8). - Aspirateur multi filtre (100) selon la revendication 1, caractérisé par le fait que lesdits conduits de raccordement (8) comprennent une multitude d'ouvertures (4) adaptées pour raccorder l'intérieur du filtre correspondant (6) à ladite chambre d'aspiration (2) pour assurer l'aspiration du flux primaire d'air poussiéreux (F).
- Aspirateur multi filtre (100) selon les revendications 1 et 2, caractérisé par le fait que lesdits moyens à vanne (3) comprennent :- un piston (10),- des moyens pour activer ledit piston (10) commandés par ladite unité de commande ;- des moyens de retour élastique (12) ;où ledit piston (10) coulisse dans ledit conduit (8) commandé par lesdits moyens d'activation contre l'action des moyens de retour élastique (12), de manière à provoquer, par son mouvement alternatif, l'ouverture et la fermeture desdites ouvertures (4).
- Aspirateur multi filtre (100) selon la revendication 3, caractérisé par le fait que lesdits moyens d'activation dudit piston (10) comprennent un solénoïde (11) ou un vérin pneumatique.
- Aspirateur multi filtre (100) selon la revendication 3, caractérisé par le fait que lesdits moyens de retour élastique (12) comprennent un ressort hélicoïdal coaxial avec ledit conduit (8), disposé entre la base dudit piston (10) et un anneau (13) fixé à une section terminale dudit conduit (8).
- Aspirateur multi filtre (100) selon la revendication 3, caractérisé par le fait que lesdits moyens d'activation causent le mouvement dudit piston (10) pour fermer ledit conduit (8), tandis que lesdits moyens de retour élastique (12) causent le mouvement inverse dudit piston (10) pour ouvrir ledit conduit (8).
- Aspirateur multi filtre (100) selon la revendication 1, caractérisé par le fait qu'il comprend une multitude de turbines (1a, 1b, 1c), chacune raccordée de manière indépendante à une chambre d'aspiration (2a, 2b, 2c).
- Aspirateur multi filtre (100) selon la revendication 7, caractérisé par le fait qu'entre chaque chambre d'aspiration (2a, 2b, 2c) et chaque filtre (6) un conduit de raccordement (8) est interposé et muni d'une sortie (5) adaptée pour raccorder l'intérieur du filtre correspondant (6) à ladite chambre d'aspiration (2a, 2b, 2c) pour assurer l'aspiration du flux primaire d'air poussiéreux (F) en activant chaque turbine (1a, 1b, 1 c).
- Aspirateur multi filtre (100) selon les revendications 1, 7 et 8, caractérisé par le fait que lesdits moyens à vanne (3) comprennent :- une membrane (14),- des moyens de retour élastique (15),où ladite membrane (14) coulisse dans ladite chambre d'aspiration (2a, 2b, 2c) en raison de la force d'aspiration de ladite turbine (1a, 1b, 1c) contre l'action de moyens de retour élastique (15), de manière à provoquer, par son mouvement alternatif, l'ouverture et la fermeture de ladite sortie (5).
- Aspirateur multi filtre (100) selon la revendication 9, caractérisé par le fait que lesdits moyens de retour élastique (15) comprennent un ressort hélicoïdal positionné dans ladite chambre d'aspiration (2a, 2b, 2c), entre ladite membrane (14) et ladite turbine (1a, 1b, 1c).
- Aspirateur multi filtre (100) selon la revendication 9, caractérisé par le fait que l'activation de l'une desdites turbines (1a, 1b, 1c) cause le mouvement de ladite membrane (14) pour ouvrir le conduit respectif (8), tandis que lesdits moyens de retour élastique (15) causent le mouvement inverse de ladite membrane (14) pour fermer ledit conduit.
- Aspirateur multi filtre (100) selon la revendication 1, caractérisé par le fait que lesdits moyens de secouage (9) comprennent une tête de frappe (17), activée électromécaniquement par un solénoïde ou par un vibrateur à came, adapté pour frapper ledit filtre (6) afin d'exercer une action mécanique de vibration pour effectuer un nettoyage efficace.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20210022A RS61304B1 (sr) | 2012-12-27 | 2013-12-23 | Multi-filterski usisivač sa nezavisnim vibracionim uređajem za čišćenje za svaki filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000026A ITCR20120026A1 (it) | 2012-12-27 | 2012-12-27 | Aspirapolvere plurifiltro con dispositivo di pulizia a scuotimento indipendente per ogni filtro |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2749193A1 EP2749193A1 (fr) | 2014-07-02 |
EP2749193B1 true EP2749193B1 (fr) | 2020-11-18 |
Family
ID=47720605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13199322.2A Active EP2749193B1 (fr) | 2012-12-27 | 2013-12-23 | Aspirateur multi filtre avec dispositif de nettoyage à secousses indépendant pour chaque filtre |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2749193B1 (fr) |
DK (1) | DK2749193T3 (fr) |
ES (1) | ES2843050T3 (fr) |
IT (1) | ITCR20120026A1 (fr) |
RS (1) | RS61304B1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107440602B (zh) * | 2017-09-08 | 2020-04-10 | 晋江兴翼机械有限公司 | 一种循环交替过滤的工业吸尘器及其控制方法 |
EP3753464A1 (fr) * | 2019-06-18 | 2020-12-23 | Hilti Aktiengesellschaft | Agencement d'une unité de nettoyage dans un dispositif d'aspiration et dispositif d'aspiration doté d'un tel agencement |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004012911U1 (de) * | 2004-08-18 | 2004-10-21 | Electrostar Schöttle GmbH & Co. KG | Sauggerät mit mehreren Saugmotoren |
ITMI20071121A1 (it) * | 2007-06-01 | 2008-12-02 | Guido Valentini | "aspiratore per polveri con pulizia automatica dei filtri" |
US8029584B2 (en) * | 2007-06-06 | 2011-10-04 | Castronovo Charles A | Vacuum cleaners with self-cleaning filtration, and other self-cleaning filters |
WO2009041890A2 (fr) * | 2007-09-28 | 2009-04-02 | Htc Sweden Ab | Procédés, dispositif et soupape de nettoyage d'un filtre séparateur |
-
2012
- 2012-12-27 IT IT000026A patent/ITCR20120026A1/it unknown
-
2013
- 2013-12-23 ES ES13199322T patent/ES2843050T3/es active Active
- 2013-12-23 RS RS20210022A patent/RS61304B1/sr unknown
- 2013-12-23 DK DK13199322.2T patent/DK2749193T3/da active
- 2013-12-23 EP EP13199322.2A patent/EP2749193B1/fr active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
RS61304B1 (sr) | 2021-02-26 |
DK2749193T3 (da) | 2021-01-18 |
ITCR20120026A1 (it) | 2014-06-28 |
ES2843050T3 (es) | 2021-07-15 |
EP2749193A1 (fr) | 2014-07-02 |
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