EP3189760A1 - Machine de nettoyage du sol - Google Patents

Machine de nettoyage du sol Download PDF

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Publication number
EP3189760A1
EP3189760A1 EP16000021.2A EP16000021A EP3189760A1 EP 3189760 A1 EP3189760 A1 EP 3189760A1 EP 16000021 A EP16000021 A EP 16000021A EP 3189760 A1 EP3189760 A1 EP 3189760A1
Authority
EP
European Patent Office
Prior art keywords
filter
floor cleaning
cleaning machine
machine according
suction
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.)
Withdrawn
Application number
EP16000021.2A
Other languages
German (de)
English (en)
Inventor
Michael Zollinger
Mark Meng
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.)
Wetrok AG
Original Assignee
Wetrok AG
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 Wetrok AG filed Critical Wetrok AG
Priority to EP16000021.2A priority Critical patent/EP3189760A1/fr
Publication of EP3189760A1 publication Critical patent/EP3189760A1/fr
Withdrawn legal-status Critical Current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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4027—Filtering or separating contaminants or debris

Definitions

  • the invention relates to a floor cleaning machine according to the preamble of patent claim 1.
  • a floor cleaning machine e.g. a scrubber-drier
  • the water applied to the floor for cleaning is sucked off again with a suction strip.
  • a suction fan as in a vacuum cleaner
  • This air-water mixture is directed into the wastewater tank of the machine.
  • the waste water tank the air is again separated from the water and discharged via the suction fan to the environment.
  • a floor cleaning machine with a cleaning head which comprises a suction channel and a liquid supply and removal system.
  • This known floor cleaning machine comprises a remplisstechnikszuschreibtell with a hose for the transport of hot water to the cleaning head and a negative pressure suction hose for the transport of the suctioned through the cleaning head air / water / solid mixture.
  • a first separation device comprising a cyclone separator and then a filter
  • the solid particles are separated from the sucked through the cleaning head air / water / solid mixture and fed to a dirt collector, while the air / water mixture is fed to the filter via an air hose of a vacuum pump and is led from there back to the liquid tank, where the air is separated by a second separator from the water and discharged as exhaust air via a pipe to the atmosphere.
  • a disadvantage of this known floor cleaning machine that the air, which is transported via the cleaning head through the machine, depending on the location of the machine can contain the finest dirt particles, bacteria, viruses, etc., which are not separated by the separation devices from the air and therefore with the exhaust air are discharged to the environment, whereby a distribution and turbulence of these finest dirt particles, bacteria or viruses takes place to the environment.
  • a floor cleaning machine designed for decontaminating floors in nuclear reactor buildings is known from the document JP 2002/311192 [Tomoji ] known.
  • This known floor cleaning machine comprises a filter arranged in the flow direction of the air after the suction fan, so that the exhaust air is cleaned immediately before its exit from the machine.
  • the outlet openings for the exhaust air are arranged on top of the machine housing.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a floor cleaning machine, which is particularly useful in pollution-sensitive areas such as hospitals, food processing or clean rooms and their filters are tool-free interchangeable without much effort.
  • the invention solves the task with floor cleaning machine, which has the features of claim 1.
  • the first and second filters are each arranged in a separate filter cassette.
  • main filters can be used with different "filtration classes, for example HEPA according to EN 1822-1: 2009, without the need to replace the first filter, i.e. the coarser prefilter.
  • the at least one filter viewed in the flow direction of the air, is arranged terminally in the exhaust air duct.
  • the at least one filter preferably the first and second filters each have a thickness of at least 0.1 mm, preferably of at least 0.5 mm.
  • the at least one filter preferably the first and second filters each have a thickness of at most 2.5 mm, preferably of at most 2 mm.
  • the at least one filter preferably the first and second filters each span an area F of at least 0.1 m 2 , preferably of at least 0.3 m 2 .
  • the at least one filter preferably the first and second filters each span an area F of at most 2.5 m 2 , preferably of at most 2 m 2 .
  • the at least one filter preferably the first and second filters are made of polyester.
  • the suction fan comprises an outlet opening and a drive motor, wherein in the region of the drive motor, a cooling air duct for the drive motor is arranged, which opens into the exhaust duct between the outlet opening of the suction fan and the at least one filter.
  • the exhaust air duct comprises at least one exhaust air opening in the engine housing, wherein the at least one exhaust air opening has a surface normal, which einschilesst with a gravity vector an angle between 90 ° and 180 °.
  • the machine housing additionally comprises air slots or openings, which are in fluid communication with the at least one exhaust air opening, wherein the air slots or openings have a surface normal, which include an angle between 90 ° and 180 ° with a gravity vector.
  • the at least one exhaust air opening does not have to be arranged outside on the machine housing. The air can be guided by guide devices or via a diffuser from the exhaust port to the louvers or openings in the machine housing and from there to the environment.
  • the at least one exhaust air opening and / or the air slots or openings are arranged on the upper side of the machine housing or on the front or laterally on the floor cleaning machine.
  • the at least one exhaust air opening or the air slots or openings on a lower edge which in the vertical direction in a Height h is arranged above a floor to be cleaned, wherein the height h is at least 10 cm, preferably at least 30 cm.
  • the at least one cleaning device comprises a rotatable brush or a cleaning element of a foam-like material.
  • the machine housing and the first and / or second tank are integrally formed.
  • first and second tanks are arranged in the machine housing and preferably next to each other or one above the other.
  • first and / or second tank outside the machine housing is arranged, and preferably pivotally mounted on the machine housing.
  • the tank arranged on the upper side of the machine housing is pivotably connected to the machine housing by means of a joint.
  • the at least one exhaust air opening and / or the air slots or openings are arranged between the first and the second tank.
  • the at least one exhaust air opening has a cross-sectional area of at least 2,500 mm 2 , preferably of at least 5,000 mm 2 .
  • the at least one exhaust air opening has a cross-sectional area of at most 100,000 mm 2 , preferably of at most 30,000 mm 2 .
  • the suction fan generates a suction air volume flow of at least 0.008 m 3 / s, preferably of at least 0.018 m 3 / s.
  • the suction fan generates a suction air volume flow of at most 0.1 m 3 / s, preferably of at most 0.035 m 3 / s.
  • the in the Fig. 1 - 4th illustrated embodiment of the floor cleaning machine 1 essentially comprises a machine housing 16 having at least two wheels 29 with a underside 2 facing a bottom 7 to be cleaned, a top 3 and four sides 4, 5, 6a, 6b arranged opposite each other in the vertical direction, at least one the bottom 2 of the Machine housing 16 arranged cleaning device 9, for example at least one rotatable brush or a cleaning element of a foam-like material (cleaning pad), a first tank 10 for a cleaning liquid to which a first pipe or hose 25 for discharging the cleaning liquid in the region of at least one cleaning element.
  • the suction device 11 further includes, by way of example and not limitation, a first filter 17 and a second filter 22, wherein the first filter 17 and the second filter 22 are each arranged in a filter cartridge 31.
  • the machine housing 16 additionally comprises a receptacle 24 for the filter cassettes 31, so that the filter cassettes 31 are slidable into the exhaust air duct 21, which is arranged between the outlet opening 20 of the suction fan 13 and one or more exhaust openings 18 in the machine housing 16.
  • the receptacle 24 for the filter cartridges 31 (FIG. Fig. 4 ) is open on a freely accessible outer surface, ie on the upper side 3 or on a side 4; 5; 6a; 6b, wherein the sides 4; 5; 6a; 6b are rear side by a front side 4 with respect to a forward movement direction of the floor cleaning machine 1 5 and two lateral sides 6a, 6b are formed.
  • the first filter 17 is a coarser prefilter and is arranged in the flow direction after the outlet opening 20 suction fan 13, while the second filter 22 is a fine main filter (eg a microfilter or fine filter) and disposed between the first filter 17 and the exhaust port 18 of the machine housing 16 is.
  • the first and second filters 17, 22 may be filters of a different "filtration class", for example HEPA according to EN 1822-1: 2009.4, as required.
  • the second filter 22 is preferably arranged terminally in the exhaust air channel 21 when viewed in the flow direction of the air.
  • the first and second filters 17, 22 may each have a thickness of at least 0.1 mm, preferably at least 0.5 mm and at most 2.5 mm, preferably at most 2 mm.
  • the area F of the first and second filters spanned in the exhaust duct 21 may be at least 0.1 m 2 , preferably at least 0.3 m 2 and at most 2.5 m 2 , preferably of at most 2 m 2 .
  • the first and second filters 17, 22 may be made of polyester and have the following properties: separation efficiencies 0.3 ⁇ m />99.95%; Dust class H according to DIN EN 60335-2-69 Annex AA; Maximum transmittance: ⁇ 0.005%
  • the first tank 10 is filled with a cleaning liquid.
  • the device 8 for the supply of cleaning liquid comprises a first pipe or hose 25 (FIG. Fig. 3 ), which is connected to the first tank 10 and via which the cleaning liquid in the region of the at least one cleaning element 9 is discharged.
  • one or more nozzles 30 for spraying the cleaning liquid can be arranged in the area of the at least one cleaning element 9, wherein a pump 23 inserted into the first pipe or hose 25 supplies the pressure for spraying the cleaning liquid.
  • the suction device 11 for sucking off protection water essentially comprises the second tank 14 for the dirty water, the suction strip 12, which is arranged behind the at least one cleaning device 9 on the machine housing 16 in a forward direction of movement of the floor cleaning machine 1, a suction fan 13 with a suction opening 19 and an outlet opening 20 and a separating device 15, which is arranged between the suction strip 12 and the suction opening 19 of the suction fan 13.
  • the separation device 15 can be designed by way of example and not limitation as a gravity separator and arranged in the second tank 14, so that the dirty water is separated directly in the second tank 14 by gravity from the extracted by the squeegee 12 air / wastewater mixture and discharged into the second tank 14 ,
  • the air / waste water mixture is guided by the squeegee 12 via a second pipe or hose connection 26 into the separation device 15.
  • the air is guided by means of a third pipe or hose connection 27 from the separation device 15 to the suction fan 13 and from there into the exhaust air channel 21 and through the first and second filters 17, 22 to the environment.
  • the first and second tanks 10, 14 are arranged by way of example and not limiting one above the other, wherein the first tank 10 is disposed in the machine housing 16 and the second tank 14 is disposed on the top 3 of the machine housing 16.
  • the first and second tanks 10, 14 may be arranged side by side in the machine housing 16.
  • the machine housing 16 may be integrally formed with the first and / or second tanks 10, 14,
  • the exhaust air duct 21 comprises one or more exhaust openings 18 in the machine housing 16, through which the exhaust air is discharged to the environment after flowing through the first and second filters 17, 21 arranged in the exhaust air duct 21.
  • the one or more exhaust ports 18 may be disposed within the engine housing 16, with air slots or ports 34 (or in the machine housing 16). Fig. 2 ) are provided which are in fluid communication with the one or more exhaust ports 18.
  • the one or more exhaust ports 18 or the air slots or ports 34 may be disposed on the upper side 3, the front side 4, or on one or both lateral sides 6a, 6b, so that a user is not blown.
  • the one or more exhaust ports 18 and / or the air slots or openings 34 are arranged such that their surface normal with the gravity vector includes an angle between 90 ° and 180 °, so that from the one or more exhaust ports 18 or from the Louvers or openings 34 exiting exhaust air is not directed against the bottom 7 and thus stirs up no dust particles.
  • the one or more exhaust air openings 18 and / or air slots or openings 34 may be arranged, for example and not restricting in the vertical direction, in a central region of the floor cleaning machine 1 ( Fig. 2 ).
  • the machine housing 16 comprises an exhaust port 18 ( Fig. 1 ), which are connected by the exhaust duct 21 with the outlet opening 20 of the suction fan (13), wherein the exhaust port 18 is directed against the back 5.
  • the air is guided from the exhaust air opening 18, for example by means of guide blades or air ducts or through one or more walls of the first and / or second tanks 10, 14 to a respective air slot or opening 34 arranged on a lateral side 6a, 6b.
  • the two air slots or openings 34 between the first and the second tank 10, 14 are arranged in the embodiment shown.
  • the one or more exhaust ports 18 may be integrated in the first tank 10 and exit, for example, through a diffuser and the air slots or ports 34 from the first tank 10, respectively the engine housing 16.
  • the cross-sectional area of an exhaust air opening 18 may be, for example and not restrictive, at least 2'500 mm 2 , preferably at least 5000 mm 2 and at most 100'000 mm 2 , preferably at most 30'000 mm 2 .
  • the suction air volume flow generated by the suction fan 13 may be at least 0.008 m 3 / s, preferably at least 0.018 m 3 / s and at most 0.1 m 3 / s, preferably at most 0.035 m 3 / s.
  • a further embodiment of the inventive floor cleaning machine 1 is shown, which differs from the in the Fig. 1 - 4th embodiment shown only differs in that in the region of the drive motor of the suction fan 13, a cooling air duct 33 is arranged for this drive motor, which opens between the outlet opening 20 of the suction fan 13 and the first filter 17 in the exhaust duct 21, so that contamination of the ambient air through the Motor of the suction turbine is prevented.

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  • Filtering Of Dispersed Particles In Gases (AREA)
EP16000021.2A 2016-01-08 2016-01-08 Machine de nettoyage du sol Withdrawn EP3189760A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16000021.2A EP3189760A1 (fr) 2016-01-08 2016-01-08 Machine de nettoyage du sol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16000021.2A EP3189760A1 (fr) 2016-01-08 2016-01-08 Machine de nettoyage du sol

Publications (1)

Publication Number Publication Date
EP3189760A1 true EP3189760A1 (fr) 2017-07-12

Family

ID=55077399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16000021.2A Withdrawn EP3189760A1 (fr) 2016-01-08 2016-01-08 Machine de nettoyage du sol

Country Status (1)

Country Link
EP (1) EP3189760A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023102832A1 (fr) * 2021-12-09 2023-06-15 深圳市壹洁智能科技有限公司 Robot de nettoyage intelligent
WO2023151205A1 (fr) * 2022-02-09 2023-08-17 深圳市启为机器人技术有限公司 Appareil de nettoyage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104345A1 (fr) * 1982-08-06 1984-04-04 Gustav Madsen Procédé et appareil de nettoyage de tapis
EP0135787A2 (fr) * 1983-09-12 1985-04-03 Tennant Company Machine pour l'entretien des sols manoeuvrable par l'arrière
EP0931502A2 (fr) * 1997-11-24 1999-07-28 Tennant Company Dispositif d'étanchéité pour machines à frotter les sols
GB2345241A (en) 1998-04-21 2000-07-05 Aussie Red Equipment Pty Ltd Wet suction floor cleaner
JP2002311192A (ja) 2001-04-12 2002-10-23 Japan Atom Power Co Ltd:The 原子力施設等で用いる床面除染装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104345A1 (fr) * 1982-08-06 1984-04-04 Gustav Madsen Procédé et appareil de nettoyage de tapis
EP0135787A2 (fr) * 1983-09-12 1985-04-03 Tennant Company Machine pour l'entretien des sols manoeuvrable par l'arrière
EP0931502A2 (fr) * 1997-11-24 1999-07-28 Tennant Company Dispositif d'étanchéité pour machines à frotter les sols
GB2345241A (en) 1998-04-21 2000-07-05 Aussie Red Equipment Pty Ltd Wet suction floor cleaner
JP2002311192A (ja) 2001-04-12 2002-10-23 Japan Atom Power Co Ltd:The 原子力施設等で用いる床面除染装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023102832A1 (fr) * 2021-12-09 2023-06-15 深圳市壹洁智能科技有限公司 Robot de nettoyage intelligent
WO2023151205A1 (fr) * 2022-02-09 2023-08-17 深圳市启为机器人技术有限公司 Appareil de nettoyage

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