EP1685784A1 - Dispositif d'aspiration - Google Patents

Dispositif d'aspiration Download PDF

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Publication number
EP1685784A1
EP1685784A1 EP05001608A EP05001608A EP1685784A1 EP 1685784 A1 EP1685784 A1 EP 1685784A1 EP 05001608 A EP05001608 A EP 05001608A EP 05001608 A EP05001608 A EP 05001608A EP 1685784 A1 EP1685784 A1 EP 1685784A1
Authority
EP
European Patent Office
Prior art keywords
suction
flow
suction device
outlet opening
dirt collecting
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.)
Granted
Application number
EP05001608A
Other languages
German (de)
English (en)
Other versions
EP1685784B1 (fr
Inventor
Sabine Zenger
Alexander Wiebe
Heiko Neff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Priority to EP20050001608 priority Critical patent/EP1685784B1/fr
Priority to DE200550010795 priority patent/DE502005010795D1/de
Publication of EP1685784A1 publication Critical patent/EP1685784A1/fr
Application granted granted Critical
Publication of EP1685784B1 publication Critical patent/EP1685784B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0023—Recovery tanks
    • A47L7/0028—Security means, e.g. float valves or level switches for preventing overflow
    • 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
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/36—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back
    • A47L5/365—Suction cleaners with hose between nozzle and casing; Suction cleaners for fixing on staircases; Suction cleaners for carrying on the back of the vertical type, e.g. tank or bucket type
    • 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
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
    • A47L7/0019—Details of the casing
    • 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
    • A47L9/165—Construction of inlets

Definitions

  • the invention relates to a suction device with a dirt collecting container, which has a suction inlet and is connected via a closable by means of a float valve Saugauslass with a suction unit, wherein upstream of the suction unit, a filter element is arranged, which can be flowed through by a suction from the suction via the suction to the suction unit leading suction flow is.
  • a suction hose can be connected in a conventional manner, so that over the suction hose with dust, dirt and / or liquid laden suction air can be sucked into the dirt collector.
  • the liquid entrained by the suction air collects in the dirt collecting container so that the liquid level in the dirt collecting container rises during the operation of the suction device.
  • the suction outlet can be closed by means of a float valve when a critical filling level is reached.
  • Object of the present invention is to develop a suction device of the type mentioned in such a way that malfunction of the float valve and the penetration of liquid can be prevented in the suction unit.
  • a suction device of the generic type according to the invention in that at the suction inlet a Saugströmung at least in a first and a second partial flow dividing flow is arranged, wherein the flow directions of the two partial flows facing away from each other, each aligned perpendicular to the vertical axis of the dirt collection directional components ,
  • the suction flow passing through the suction inlet is divided into at least two partial flows.
  • the two partial flows have directional components which face away from each other and in each case are aligned perpendicular to the vertical axis of the dirt collecting container.
  • none of the partial flows, starting from the suction inlet are directed directly at the float valve and also not perpendicular to a bottom wall of the dirt collection container, where liquid sucked in accumulates.
  • each partial flow is either horizontally aligned or has at least one horizontal directional component such that it either does not strike at all, or at most at an acute angle, hits the bottom wall of the debris collection container.
  • each partial flow for itself would form a vortex-like liquid flow in the dirt collecting container within the dirt collecting due to their aligned perpendicular to the vertical axis direction component.
  • the suction flow is subdivided into partial flows, at least two partial flows having direction components facing away from one another. This has the consequence that depending on the intensity of the two partial flows, which comprise the directional components facing away from one another, at most a relatively weak fluid flow is formed.
  • the intensities that is to say the volume flows of the partial flows, can be the same. Thereby, the formation of a vortex-shaped liquid flow within the dirt collecting container can be prevented. It is particularly advantageous if the intensity of the first partial flow is greater than the intensity of the second partial flow. This allows a weak vortex-shaped liquid flow within the dirt collector. It has been shown that thereby both the risk of premature closure of the Saugauslasses means of the float valve and the risk of delayed closing of the Saugauslasses can be kept particularly low.
  • the flow guide element has a hood which forms a baffle wall opposite the suction inlet and has an inlet opening in flow communication with the suction inlet and first and second outlet openings facing away from one another.
  • the use of the baffle prevents liquid sucked in from the suction inlet to reach the float valve directly.
  • an increased separation of liquid from the incoming suction air is made possible by the baffle wall.
  • the suction flow within the hood-shaped flow guide element is deflected into the first and second outlet openings facing away from one another.
  • the hood is configured in the form of a T-shaped piece of pipe.
  • baffle is flat. It has been shown that a particularly effective separation of liquid within the dirt collecting container can be achieved.
  • a connecting piece is arranged, to which a suction hose can be connected, and the baffle is oriented at an angle of 80 ° to 100 °, in particular 90 ° to 95 °, preferably 91 ° to the longitudinal axis of the connecting piece.
  • the liquid flowing through the suction inlet thus impinges directly on the baffle wall which is oriented virtually perpendicular to the connecting piece and the suction flow experiences a strong deflection on the baffle wall.
  • the first outlet opening is larger than the second outlet opening.
  • the intensity of the first partial flow flowing through the first outlet opening is thus greater than the intensity of the second partial flow flowing through the second outlet opening, as a result of which the advantages already explained above can be achieved.
  • the first outlet opening is at least five times as large as the second outlet opening, in particular the first outlet opening may be approximately eight times to approximately ten times as large as the second outlet opening. It has surprisingly been found that a particularly reliable operation of the suction device can be achieved by such different outlet openings.
  • the first outlet opening and / or the second outlet opening is rectangular.
  • the second outlet opening is preferably arranged on a deflection section of the hood which deflects the first partial flow in the direction of the first outlet opening.
  • the deflection section By means of the deflection section, the first partial flow is deflected by the suction inlet in the direction of the first outlet opening, and in this deflection section is the second outlet opening through which the second partial flow exits.
  • the first partial flow by means of the deflection by at least 80 °, in particular more than 90 °, for example, 91 °, deflected.
  • the deflection section may be curved in a circular arc, for example, so that the first partial flow undergoes a continuous deflection when flowing through the hood.
  • the dirt collecting container is configured cylindrical and the flow directions of the two partial flows each have a directional component oriented in the circumferential direction of the dirt collecting container.
  • vortex-shaped liquid flows are generated by the two partial flows due to their tangential directional components within the cylindrical dirt collecting container, which however largely compensate each other.
  • the feeding of the suction flow into the dirt collecting container is preferably carried out in such a way that the suction flow is radially aligned in the region of the suction inlet.
  • the suction inlet preferably has a diameter of less than 60 mm.
  • the diameter of the suction inlet and / or of the adjoining connecting channel to the flow guide is 30 mm to 60 mm.
  • a radially aligned connection piece is arranged on the suction inlet on the outside, to which a suction hose can be connected.
  • the suction unit and the float valve are aligned coaxially to the vertical axis of the dirt collecting container.
  • the dirt collecting container can thus be sucked off in a central region via the suction outlet and when using a cylindrical dirt collecting container, the suction outlet along its outer circumference at a constant distance from the container wall of the dirt collection on.
  • the filter element may be arranged downstream of the float valve. It is particularly advantageous, however, if the filter element is positioned upstream of the float valve. In particular, it can be provided that the filter element surrounds the float valve in the circumferential direction.
  • the filter element can be configured as a hollow cylindrical filter cartridge, which is aligned coaxially to the vertical axis of the dirt collecting container.
  • a suction device which is designated by the reference numeral 10 and which is designed in the form of a wet-dry vacuum cleaner. It has a lower part in the form of a dirt collecting container 12, on which an upper part 14 is placed.
  • the dirt collecting container 12 is provided with a suction inlet 16 having a diameter of about 35 mm and on the outside of a connection piece 17, to which a flow-guiding element 20 is connected within the dirt-collecting container 12.
  • To the connecting piece 17 is a known per se and therefore not shown in the drawing suction hose connected, which can carry a suction nozzle at its free end in the usual way.
  • the dirt collecting container 12 is covered by the upper part 14, which has an inner housing 22 and a lid 23 seated thereon.
  • the inner housing 22 is designed in two parts and comprises a suspension part 25 which can be suspended in the dirt collecting container 12 and an air guide part 26 placed on the supporting part 25.
  • the dirt collecting container 12 has a cylindrical shape and has a cylinder jacket-shaped side wall 28 and a bottom wall 29.
  • the suction inlet 16 is formed in the side wall 28, and the longitudinal axis 31 of the connecting piece 17 held at the suction inlet 16 is radially aligned relative to the cylinder axis 32 of the dirt collecting container 12 ,
  • the cylinder axis 32 forms the vertical axis of the dirt collecting container, which is aligned substantially vertically in the operating position of the suction device 10.
  • the inner housing 22 centrally receives a coaxially with the cylinder axis 32 aligned suction unit 34 with a suction turbine 35 which is driven by an electric motor 36.
  • Suction turbine 35 and electric motor 36 are arranged axially one behind the other.
  • the suction turbine 35 is connected via exhaust ducts of the inner housing 22 in flow communication with an exhaust outlet 38, which is covered by a protective grid 39.
  • the suction turbine 35 is in fluid communication with the dirt collector 12, so that by means of the suction unit 34 via the connecting piece 17 and the flow guide 20 dirt and liquid can be sucked into the dirt collecting 14, via the Saugauslass 41 can be sucked from the suction turbine 35.
  • a float valve 43 is held at Saugauslass 41 with a valve body 44 which is surrounded by a valve cage 45 and upon reaching a critical fluid level within the dirt collecting 12 to the suction outlet 41 is tightly applied, thereby the flow connection between the dirt collector 12 and the suction unit To be able to interrupt 34 and thus to be able to prevent that liquid from the dirt collecting 12 can reach the suction unit 34.
  • the float valve 43 is circumferentially surrounded by a hollow cylindrical filter cartridge 47, which is closed at the bottom by means of an end plate 48 and forms a filter element, which is traversed by the suction air and deposited on the dirt and dust particles.
  • the flow-guiding element 20 comprises a connection ring 50, which can be placed on the inside end of the connecting piece 17 and is integrally connected to a hood 52 covering the connecting ring 50.
  • the hood 52 forms a plane, practically perpendicular, for example, at an angle of 91 ° to the longitudinal axis 31 of the connecting piece 17 aligned baffle 54, which is connected via an upper side wall 55, a lower side wall 56 and a circular arc curved deflection wall 57 to the connection ring 50.
  • the hood 52 On the outside, the hood 52 carries a plurality of reinforcing ribs 59 to increase their mechanical strength.
  • the terminal ring 50 defines an inlet opening 60 of the hood 52 in fluid communication with the suction inlet 16, and the free end edges 63, 64 and 65 of the upper side wall 55, the lower side wall 56 and the baffle 54 define in combination with the terminal ring 50 on the the deflection wall 57 opposite side of the hood 52 has a first outlet opening 57.
  • a second outlet opening 68 is formed in the hood 52 in the region of the deflection wall 57.
  • the second outlet opening 68 is smaller than the first outlet opening 67.
  • the first outlet opening 67 is approximately eight times to approximately ten times larger than the second outlet opening 68.
  • the two outlet openings 67 and 68 face each other and are each configured rectangular.
  • the suction flow occurring during operation of the suction device 10 which is illustrated by the arrow 70 in FIG. 1, is supplied to the dirt collecting container 12 in the region of the suction inlet 16 in the radial direction, but then experiences it within the hood 52 a deflection and division.
  • a first partial flow 71 enters the dirt collecting container 12 via the first outlet opening 67, and a second partial flow 72 passes via the second outlet opening 68 in the dirt collector 12 a.
  • Both partial flows 71 and 72 are aligned perpendicular to the cylinder axis 32, so that neither the first partial flow 71 nor the second partial flow 72 impinges perpendicular to the bottom wall 29.
  • the two partial flows 71 and 72 are aligned tangentially to the cylinder axis 32.
  • the partial flows 71 and 72 slightly, that is at an angle of about 15 °, preferably at an angle of about 7 ° to about 10 ° to the tangential direction, the is inclined to a horizontal plane.
  • the two partial flows 71 and 72 each have a direction component aligned perpendicular to the cylinder axis 32, wherein these directional components of the two partial flows 71, 72 are opposite to one another.
  • each partial flow 71 and 72 per se results in the formation of a liquid flow circulating around the cylinder axis 32 within the dirt collecting container 12.
  • the partial flows 71 and 72 have oppositely directed direction components, the liquid flows are largely compensated. Due to the greater intensity of the first partial flow 71 compared to the intensity of the second partial flow 72, however, the liquid flow caused by the first partial flow 71 predominates, so that the aspirated fluid rotates about the cylinder axis 32 at a relatively low speed.
  • the size and shape of the outlet openings 67 and 68 can be selected depending on the suction strength of the suction unit 34 and the size and shape of the dirt collecting container 12 such that faulty switching of the float valve 43 can be practically excluded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • External Artificial Organs (AREA)
EP20050001608 2005-01-27 2005-01-27 Dispositif d'aspiration Active EP1685784B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20050001608 EP1685784B1 (fr) 2005-01-27 2005-01-27 Dispositif d'aspiration
DE200550010795 DE502005010795D1 (de) 2005-01-27 2005-01-27 Sauggerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20050001608 EP1685784B1 (fr) 2005-01-27 2005-01-27 Dispositif d'aspiration

Publications (2)

Publication Number Publication Date
EP1685784A1 true EP1685784A1 (fr) 2006-08-02
EP1685784B1 EP1685784B1 (fr) 2011-01-05

Family

ID=34933458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050001608 Active EP1685784B1 (fr) 2005-01-27 2005-01-27 Dispositif d'aspiration

Country Status (2)

Country Link
EP (1) EP1685784B1 (fr)
DE (1) DE502005010795D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1787562A1 (fr) * 2005-11-22 2007-05-23 Eurofilters Holding N.V Raccord avec dispositif de déviation pour un aspirateur
WO2007059937A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Raccord comportant un dispositif de deviation destine a un aspirateur
WO2007059936A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Sac d'aspirateur filtrant comportant un dispositif de deviation
WO2010026237A1 (fr) * 2008-09-08 2010-03-11 Alfred Kärcher Gmbh & Co. Kg Aspirateur
EP2335543A1 (fr) * 2008-10-24 2011-06-22 Makita Corporation Collecteur de poussière
CN102319043A (zh) * 2011-07-29 2012-01-18 泰怡凯电器(苏州)有限公司 旋风分离装置及装有该装置的旋风吸尘器
US8382871B2 (en) 2005-11-22 2013-02-26 Eurofilters Holding N.V. Vacuum cleaner filter bag and use of said bag
CN105120725A (zh) * 2013-03-28 2015-12-02 阿尔弗雷德·凯驰两合公司 吸尘器
FR3022132A1 (fr) * 2014-06-17 2015-12-18 Ecodrop Dispositif de nettoyage de type notamment raclette a vitres
EP3542693A1 (fr) * 2018-03-22 2019-09-25 Hilti Aktiengesellschaft Aspirateur eau et poussières

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2736396B1 (fr) * 2011-07-25 2016-09-07 Alfred Kärcher GmbH & Co. KG Aspirateur
DK3238592T3 (da) 2016-04-27 2021-07-19 Diversey Inc Støvsuger

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820310A (en) 1973-01-29 1974-06-28 Singer Co Vacuum cleaner inlet baffle
US4623366A (en) * 1985-09-20 1986-11-18 Shop-Vac Corporation Grid element for lid of a cannister type vacuum cleaner
US4809396A (en) 1987-06-29 1989-03-07 Houser Franklin C Combination vacuum and solution-dispensing apparatus
US5795358A (en) * 1996-08-19 1998-08-18 W. L. Gore & Associates, Inc. Removeable deflector boot for a wet/dry vacuum cleaner
US5954863A (en) * 1996-11-18 1999-09-21 Loveless; Michael L. Wet and dry vacuum with float valve system
US20040089157A1 (en) * 2002-11-07 2004-05-13 Von Stackelberg Roland Drum lid for minimal liquid carryover in a vacuum system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3820310A (en) 1973-01-29 1974-06-28 Singer Co Vacuum cleaner inlet baffle
US4623366A (en) * 1985-09-20 1986-11-18 Shop-Vac Corporation Grid element for lid of a cannister type vacuum cleaner
US4809396A (en) 1987-06-29 1989-03-07 Houser Franklin C Combination vacuum and solution-dispensing apparatus
US5795358A (en) * 1996-08-19 1998-08-18 W. L. Gore & Associates, Inc. Removeable deflector boot for a wet/dry vacuum cleaner
US5954863A (en) * 1996-11-18 1999-09-21 Loveless; Michael L. Wet and dry vacuum with float valve system
US20040089157A1 (en) * 2002-11-07 2004-05-13 Von Stackelberg Roland Drum lid for minimal liquid carryover in a vacuum system

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8157879B2 (en) 2005-11-22 2012-04-17 Eurofilters Holding N.V. Vacuum cleaner filter bag with deflection device
EP1787560A1 (fr) * 2005-11-22 2007-05-23 Eurofilters Holding N.V Sac à poussières d'aspirateur avec dispositif de déviation
WO2007059937A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Raccord comportant un dispositif de deviation destine a un aspirateur
WO2007059936A1 (fr) * 2005-11-22 2007-05-31 Eurofilters Holding N.V. Sac d'aspirateur filtrant comportant un dispositif de deviation
EP1787562A1 (fr) * 2005-11-22 2007-05-23 Eurofilters Holding N.V Raccord avec dispositif de déviation pour un aspirateur
US8382871B2 (en) 2005-11-22 2013-02-26 Eurofilters Holding N.V. Vacuum cleaner filter bag and use of said bag
WO2010026237A1 (fr) * 2008-09-08 2010-03-11 Alfred Kärcher Gmbh & Co. Kg Aspirateur
EP2335543A1 (fr) * 2008-10-24 2011-06-22 Makita Corporation Collecteur de poussière
EP2335543A4 (fr) * 2008-10-24 2013-01-09 Makita Corp Collecteur de poussière
CN102196755A (zh) * 2008-10-24 2011-09-21 株式会社牧田 吸尘器
CN102319043A (zh) * 2011-07-29 2012-01-18 泰怡凯电器(苏州)有限公司 旋风分离装置及装有该装置的旋风吸尘器
CN105120725A (zh) * 2013-03-28 2015-12-02 阿尔弗雷德·凯驰两合公司 吸尘器
FR3022132A1 (fr) * 2014-06-17 2015-12-18 Ecodrop Dispositif de nettoyage de type notamment raclette a vitres
WO2019180108A1 (fr) * 2018-03-22 2019-09-26 Hilti Aktiengesellschaft Aspirateur pour liquide ou matière sèche
EP3542693A1 (fr) * 2018-03-22 2019-09-25 Hilti Aktiengesellschaft Aspirateur eau et poussières
WO2019180109A1 (fr) * 2018-03-22 2019-09-26 Hilti Aktiengesellschaft Aspirateur pour liquides ou matière sèche
CN111818833A (zh) * 2018-03-22 2020-10-23 喜利得股份公司 干湿吸尘器
CN111818832A (zh) * 2018-03-22 2020-10-23 喜利得股份公司 干湿吸尘器
JP2021517041A (ja) * 2018-03-22 2021-07-15 ヒルティ アクチエンゲゼルシャフト 湿乾式真空掃除機
JP2021517042A (ja) * 2018-03-22 2021-07-15 ヒルティ アクチエンゲゼルシャフト 湿乾式真空掃除機
CN111818833B (zh) * 2018-03-22 2022-07-29 喜利得股份公司 干湿吸尘器

Also Published As

Publication number Publication date
DE502005010795D1 (de) 2011-02-17
EP1685784B1 (fr) 2011-01-05

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