EP1062901A1 - Staubsauger mit Flüssigkeitsbad - Google Patents

Staubsauger mit Flüssigkeitsbad Download PDF

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Publication number
EP1062901A1
EP1062901A1 EP00112948A EP00112948A EP1062901A1 EP 1062901 A1 EP1062901 A1 EP 1062901A1 EP 00112948 A EP00112948 A EP 00112948A EP 00112948 A EP00112948 A EP 00112948A EP 1062901 A1 EP1062901 A1 EP 1062901A1
Authority
EP
European Patent Office
Prior art keywords
vacuum cleaner
liquid
hollow body
bottom wall
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.)
Granted
Application number
EP00112948A
Other languages
English (en)
French (fr)
Other versions
EP1062901B1 (de
Inventor
Silvano Pozzobon
Fabio Castelnuovo
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.)
Simac Vetrella SpA
Original Assignee
Simac Vetrella SpA
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 Simac Vetrella SpA filed Critical Simac Vetrella SpA
Publication of EP1062901A1 publication Critical patent/EP1062901A1/de
Application granted granted Critical
Publication of EP1062901B1 publication Critical patent/EP1062901B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • A47L9/18—Liquid filters
    • A47L9/182—Separating by passing the air over a liquid bath
    • 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
    • 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
    • A47L9/18—Liquid filters
    • A47L9/185—Means for the mechanical control of flow of air, e.g. deflectors, baffles or labyrinths

Definitions

  • This invention concerns a liquid bath vacuum cleaner as set forth in the main claim.
  • the invention refers particularly to cleaning devices comprising a suction assembly associated with an accumulation container containing a liquid able to retain the dirt sucked in.
  • liquid bath vacuum cleaners comprising a suction assembly associated with an accumulation container containing a liquid, generally water, to which the dirt sucked in is conveyed and in which it is then retained.
  • the particles of dirt and dust collected through a suction conduct connected to collection accessories of various types arrive inside the accumulation container where a large part thereof is retained and mixes with the liquid contained therein.
  • the centrifugal force deriving from the rotation of said separator means causes the particles of dirt and dust to coalesce with the drops of water which are forced outwards, separating from the air which, on the contrary, is sucked upwards and discharged into the outside environment through appropriate apertures.
  • JP-A-2-215434 and JP-A-2-215435 disclose liquid bath vacuum cleaners wherein a lateral feed conduit conveys the air taken in, which contains the dirt, towards the liquid in a lower container, which is shaped so as to define a cylindrical central body, hollow inside and arranged below the suction assembly, and a circular peripheral chamber coaxial with the central body. After passing through the liquid bath, the air taken in is conveyed through the circular chamber into the central body, where there is a filter able to retain the dirt which has not been retained by the liquid.
  • These vacuum cleaners have the disadvantage that they are not provided with means which make any possible drops, accidentally conveyed inside the central body, flow towards the lower liquid bath; said drops could pass from the central body to the suction assembly and damage it.
  • the present Applicant has designed, tested and embodied this invention to overcome these shortcomings and to obtain further advantages.
  • a liquid bath vacuum cleaner comprises at least a suction assembly able to create a suction depression inside an accumulation container provided with a lower compartment to contain the liquid able to retain the dirt and dust sucked in, and a hollow body arranged inside the accumulation container to define with the latter a chamber wherein the air taken in circulates, wherein the hollow body has a containing compartment communicating with the suction assembly.
  • One purpose of the invention is to achieve a liquid bath vacuum cleaner of the type described above, which is economical and functional, and which will allow an efficient filtering of the air sucked in, separating it from the particles of dirt and dust, and from the drops of liquid, before it is discharged.
  • Another purpose of the invention is to provide a liquid bath vacuum cleaner wherein the part of the liquid which possibly enters into the containing compartment of the hollow body can flow away automatically towards the lower compartment containing the liquid, in order to prevent the liquid from arriving at the suction assembly, and damage it.
  • the suction assembly can therefore function in an optimum manner for long periods of time without needing frequent maintenance.
  • the vacuum cleaner according to the invention comprises separator means able to selectively and automatically put the containing compartment of the hollow body in communication with the lower compartment containing the liquid.
  • the separator means comprise a bottom wall of said hollow body, a through aperture made in said bottom wall and an element to close said through aperture.
  • the closing element is hinged on the lower part of the bottom wall of the hollow body and is able to keep the through aperture normally closed, due to the effect of the suction depression.
  • a transverse support is interposed between the hollow body and the lower compartment containing the liquid, to divide the liquid peripherally from the chamber wherein the sucked in air circulates.
  • the transverse support is mounted in removable fashion inside the accumulation container and is shaped so as to have a substantially horizontal circular crown and a central, lowered compartment defined by a lateral wall and its own bottom wall.
  • the latter is advantageously arranged below the level of the liquid and is provided with its own through aperture.
  • the bottom walls of the hollow body and the transverse support are substantially horizontal and define an interspace between them.
  • a plurality of radial fins are advantageously arranged, located around an axial cavity, communicating with the lower compartment of the accumulation container, and defining peripherally a plurality of outlet channels to convey the air towards peripheral apertures.
  • prevention means In the upper part of the chamber wherein the sucked in air circulates, associated with the hollow body, there are prevention means able to prevent drops of liquid from rising to the top of said chamber.
  • the prevention means which comprise a plate, are arranged below lateral apertures made on the lateral wall of the hollow body, to put the chamber wherein the air sucked in circulates in communication with the containing compartment of the latter.
  • the particles of dirt and dust transported by the air sucked in are conveyed towards the lower compartment of the accumulation container, where they come into contact with the liquid contained therein.
  • the air sucked in then passes through the interspace formed by the bottom walls of the hollow body and the transverse support, entering from the inlet axial cavity and exiting from the peripheral apertures, possibly passing between the radial fins.
  • the air sucked in creates turbulence inside the liquid, separating from the latter and rising up the circulation chamber until, after having passed through the containing compartment of the hollow body, it reaches the suction assembly by means of which it is then discharged.
  • the float inside the latter provides to close the inlet mouth of the suction assembly and prevents it from being damaged, while the closing element located on the lower part of the bottom wall of the hollow body automatically opens and allows the liquid to flow towards the lower compartment of the accumulation container.
  • the vacuum cleaner according to the invention thus achieves an efficient filtration of the air sucked in, by means of autonomous separator means which are distanced from the suction assembly; the latter is therefore adequately protected, also because of the safety float system.
  • the turbulence caused by the air sucked in provides to continuously remove the dirt and dust from the separator means, which thus require less frequent maintenance and cleaning.
  • a liquid bath vacuum cleaner 10 comprises a suction assembly 11 (shown only schematically with a line of dashes) associated with an accumulation container 12, substantially cylindrical in shape, which has, near its bottom wall 12a, a compartment 35 to contain a liquid 13 able to retain the dirt and dust sucked in.
  • the liquid 13, which may simply consist of water, advantageously reaches a defined level 13a.
  • the suction assembly 11 of a substantially conventional type, comprises an electric motor able to make a fan rotate, the fan being suitable to generate, inside the accumulation container 12, the depression which achieves the functioning of the vacuum cleaner 10.
  • the accumulation container 12 is provided at the side with an inlet aperture 14 with which the accessories to collect the dirt and dust (hoses, brushes, lances, etc.) are able to be connected, of a conventional type and therefore not shown in the drawings.
  • the inlet aperture 14 is associated with a conveyor conduit 15, the lower end 15a of which is located near the bottom wall 12a of the accumulation container 12, advantageously just above the level 13a of the liquid 13.
  • the conveyor conduit 15 can vary in length, and may consist for example of two or more pieces which can be moved axially one with respect to the other in telescopic fashion.
  • a hollow body 16 which extends below an inlet mouth 11a of the suction assembly 11. Between the accumulation container 12 and the hollow body 16 is defined a circular chamber 23 wherein the sucked in air circulates, after it has passed through the liquid bath 13.
  • the hollow body 16 defines inside a containing compartment 17 in which a float 18 is housed, the float 18 being constrained in suspension to an annular collar 19 attached to the inlet mouth 11a.
  • the float 18 comprises a plurality of ribs 18a, arranged radially and substantially vertical, connected at the lower part by a base 18b and is able to slide upwards inside the annular collar 19.
  • a filter 21, open at the lower part and developing around the float 18, is attached outside the annular collar 19.
  • the hollow body 16 rests its lower part on a transverse support 22 (Figs. 1 and 5), which is mounted in a removable fashion inside the accumulation container 12 and is shaped so that it has a circular crown 36, substantially horizontal, and a central compartment 37 lowered and defined by a lateral wall 38 and a bottom wall 39, advantageously arranged below the level 13a of the liquid 13.
  • the transverse support 22 is provided with a lateral aperture 40 in which the lower end part 15a of the conveyor conduit 15 is normally housed.
  • a sealing packing 41 for example made of rubber, which is able to prevent the liquid 13 from entering the circular chamber 23 along the walls of the accumulation container 12.
  • the hollow body 16 is provided in its upper section with one or more lateral apertures 24 by means of which the circular chamber 23 communicates with the containing compartment 17.
  • the hollow body 16 is provided with a plate 25, which develops outside over the whole perimeter of the hollow body 16 and is inclined towards the bottom wall 12a of the accumulation container 12, thus defining a peripheral narrowing of the circular chamber 23.
  • the function of the plate 25 is to retain any possible drops of water still present in the air rising along the circular chamber 23, and make them fall downwards.
  • the hollow body 16 also comprises a bottom wall 16a, substantially horizontal, located in a higher position with respect to the bottom wall 39 of the transverse support 22, so as to define an interspace 26. Peripheral apertures 42 make the interspace 26 communicate with the circular chamber 23.
  • the interspace 26 comprises at the center an axial cavity 28, communicating with the lower compartment 35 of the accumulation container 12 through an aperture 22a made in the bottom wall 39 of the transverse support 22.
  • radial fins 27 may be arranged inside the interspace 26, around the axial cavity 28, radial fins 27, possibly made in a piece therewith, may be arranged.
  • radial fins 27 which advantageously have a curved longitudinal development, even though they may also be different both in shape and in number.
  • the radial fins 27 define a plurality of channels 29 which make the axial cavity 28 communicate with the circular chamber 23, through the peripheral apertures 42.
  • the bottom wall 16a there is a through hole 31, which makes the axial cavity 28 communicate with the containing compartment 17 of the hollow body 16.
  • a corresponding discharge window 30 hinges, by means of a hinge 32, on the lower part of the bottom wall 16a and is able to open or close the through hole 31 according to the pressure conditions inside the accumulation container 12.
  • the discharge window 30 is able to assume a closed position when there is a depression inside the containing compartment 17 of the hollow body 16 (Fig. 3), and an open position when there is no depression (Fig. 4).
  • the suction assembly 11 When the vacuum cleaner 10 is functioning, the suction assembly 11 creates a depression inside the containing compartment 17 of the hollow body 16 and, through the lateral apertures 24, also in the circular chamber 23 of the accumulation container 12, generating a flow of air through the conveyor conduit 15 which sucks in the dirt and dust, making them flow towards the liquid 13.
  • the air passes through the axial cavity 28 and, possibly lapping the surfaces of the radial fins 27, emerges into the circular chamber 23 through the peripheral apertures 42.
  • the air as it passes creates a turbulence in the liquid 13 which facilitates the detachment and separation of the residual drops of liquid 13 and the particles of dirt and dust.
  • the nebulized liquid 13 and any possible particles still present in the air mostly hit the plate 25, while the air itself enters the containing compartment 17 through the lateral apertures 24.
  • the air After passing through the filter 21 which provides to retain the residual substances still present in it, the air passes between the ribs 18a of the float 18 and rises towards the inlet mouth 11a of the suction assembly 11, which then provides to discharge it in a conventional manner through an outlet aperture not shown in the drawings.
  • the discharge window 30 When there is a certain quantity of liquid 13 above the bottom wall 16a, the discharge window 30 is no longer affected by the depression created by the suction assembly 11 inside the containing compartment 17, and indeed is subjected to the pressure of the liquid 13 above; therefore it automatically opens downwards (Fig. 4), making said liquid 13 flow into the interspace 26.
  • the vacuum cleaner 10 does not allow to suck in any dirt and dust; the user necessarily notices this and can then intervene to restore normal working conditions of the apparatus.
  • the suction assembly 11 is thus protected from contact with the liquid 13 in all conditions, and the vacuum cleaner 10 is protected from any possible damage resulting from such contact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP00112948A 1999-06-22 2000-06-20 Staubsauger mit Flüssigkeitsbad Expired - Lifetime EP1062901B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999UD000117A IT1310867B1 (it) 1999-06-22 1999-06-22 Aspirapolvere a bagno liquido
ITUD990117 1999-06-22

Publications (2)

Publication Number Publication Date
EP1062901A1 true EP1062901A1 (de) 2000-12-27
EP1062901B1 EP1062901B1 (de) 2006-03-08

Family

ID=11422986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00112948A Expired - Lifetime EP1062901B1 (de) 1999-06-22 2000-06-20 Staubsauger mit Flüssigkeitsbad

Country Status (5)

Country Link
EP (1) EP1062901B1 (de)
AT (1) ATE319369T1 (de)
DE (1) DE60026397T2 (de)
ES (1) ES2259958T3 (de)
IT (1) IT1310867B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195126A1 (de) * 2000-10-06 2002-04-10 SIMAC-VETRELLA SpA Reinigungsgerät mit Flüssigkeitsbad
WO2007017821A1 (en) * 2005-08-05 2007-02-15 Arcelik Anonim Sirketi A vacuum cleaner comprising a combination of a cyclone separator and a liquid filter
EP4311592A1 (de) * 2022-07-25 2024-01-31 GuangDong Well Technology Co., Ltd Vorrichtung zur mehrstufigen wasser-luft-trennung einer reinigungsmaschine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113757755B (zh) * 2021-08-03 2023-09-15 大唐保定供热有限责任公司 一种增紊流型集中供暖循环水管线

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759947A (en) * 1924-01-14 1930-05-27 Delco Light Co Domestic appliance
DE588379C (de) * 1930-02-09 1933-11-18 Hans Kohl Dr Dr Vorrichtung zum Reinigen von Luft fuer Staubsauger
US4251241A (en) * 1979-07-05 1981-02-17 Windsor Industries, Inc. Cyclone-type aspirated separator for washing dirt-laden dry airstreams
EP0377907A1 (de) * 1989-01-12 1990-07-18 Shop-Vac Corporation Trockenfilter für Staubsauger und Vorrichtung zum Befestigen des Filters
JPH02215434A (ja) * 1989-02-17 1990-08-28 Sanyo Electric Co Ltd 電気掃除機
JPH02215435A (ja) * 1989-02-17 1990-08-28 Sanyo Electric Co Ltd 電気掃除機
EP0484894A1 (de) * 1990-11-05 1992-05-13 Ing Biro Establishment Separator für flüssige und feste Partikel in einer Luftströmung
EP0551877A1 (de) * 1992-01-17 1993-07-21 WOOL SANITY SAS DI PIETROBON SILVANO & C. Staubsauger und Filteranlage
US5908493A (en) * 1997-11-17 1999-06-01 Krymsky; Mark D. Filtering system for cleaning air

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759947A (en) * 1924-01-14 1930-05-27 Delco Light Co Domestic appliance
DE588379C (de) * 1930-02-09 1933-11-18 Hans Kohl Dr Dr Vorrichtung zum Reinigen von Luft fuer Staubsauger
US4251241A (en) * 1979-07-05 1981-02-17 Windsor Industries, Inc. Cyclone-type aspirated separator for washing dirt-laden dry airstreams
EP0377907A1 (de) * 1989-01-12 1990-07-18 Shop-Vac Corporation Trockenfilter für Staubsauger und Vorrichtung zum Befestigen des Filters
JPH02215434A (ja) * 1989-02-17 1990-08-28 Sanyo Electric Co Ltd 電気掃除機
JPH02215435A (ja) * 1989-02-17 1990-08-28 Sanyo Electric Co Ltd 電気掃除機
EP0484894A1 (de) * 1990-11-05 1992-05-13 Ing Biro Establishment Separator für flüssige und feste Partikel in einer Luftströmung
EP0551877A1 (de) * 1992-01-17 1993-07-21 WOOL SANITY SAS DI PIETROBON SILVANO & C. Staubsauger und Filteranlage
US5908493A (en) * 1997-11-17 1999-06-01 Krymsky; Mark D. Filtering system for cleaning air

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 014, no. 522 (C - 0778) 15 November 1990 (1990-11-15) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195126A1 (de) * 2000-10-06 2002-04-10 SIMAC-VETRELLA SpA Reinigungsgerät mit Flüssigkeitsbad
WO2007017821A1 (en) * 2005-08-05 2007-02-15 Arcelik Anonim Sirketi A vacuum cleaner comprising a combination of a cyclone separator and a liquid filter
EP4311592A1 (de) * 2022-07-25 2024-01-31 GuangDong Well Technology Co., Ltd Vorrichtung zur mehrstufigen wasser-luft-trennung einer reinigungsmaschine

Also Published As

Publication number Publication date
ITUD990117A1 (it) 2000-12-22
EP1062901B1 (de) 2006-03-08
ES2259958T3 (es) 2006-11-01
ATE319369T1 (de) 2006-03-15
DE60026397D1 (de) 2006-05-04
DE60026397T2 (de) 2006-11-09
ITUD990117A0 (it) 1999-06-22
IT1310867B1 (it) 2002-02-22

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