EP2886029B1 - Tragbares Hartflächenabsauggerät - Google Patents

Tragbares Hartflächenabsauggerät Download PDF

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Publication number
EP2886029B1
EP2886029B1 EP14003876.1A EP14003876A EP2886029B1 EP 2886029 B1 EP2886029 B1 EP 2886029B1 EP 14003876 A EP14003876 A EP 14003876A EP 2886029 B1 EP2886029 B1 EP 2886029B1
Authority
EP
European Patent Office
Prior art keywords
suction
liquid
wall
channel
tank
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.)
Not-in-force
Application number
EP14003876.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2886029A1 (de
Inventor
Holger Krogsgaard
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.)
Nilfisk AS
Original Assignee
Nilfisk AS
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 Nilfisk AS filed Critical Nilfisk AS
Publication of EP2886029A1 publication Critical patent/EP2886029A1/de
Application granted granted Critical
Publication of EP2886029B1 publication Critical patent/EP2886029B1/de
Not-in-force 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
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices
    • A47L1/05—Hand apparatus with built-in electric motors
    • 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
    • A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
    • 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

Definitions

  • the invention relates to a portable Hartroisabsaug réelle with a suction nozzle and a suction unit according to the preamble of claim 1.
  • Characteristic of this portable Hart vomunabsaug réelle is that in a position of use of the device for receiving dirt and water from a horizontal surface has the disadvantage that it can not be ensured that the absorbed liquid can be completely introduced into the liquid tank.
  • the suction nozzle After in the obliquely downward position of use, the suction nozzle must suck the liquid-air mixture against gravity into the device, there are problems to promote the sucked liquid directly in the liquid tank.
  • the DE 10 2008 004 965 B3 provides, therefore, that in the mouth region of the suction and vacuum line, which is connected at the front of the mouth with the suction nozzle, intermediate storage areas are provided in the interior of the device, in which initially during the lowered working position of the device, the liquid parts are temporarily stored, only at the Swiveling the device - after the suction of a horizontal surface has been completed - to let the liquid parts that were previously in the intermediate storage areas flow into the tank.
  • the US Pat. No. 6,968,593 B1 is regarded as the closest prior art and discloses a portable hard surface suction device having a suction nozzle and a suction unit, which is in flow communication with the suction nozzle for sucking a liquid-air mixture from a hard surface, and having a separation device for separating liquid from the liquid-air mixture, and with a liquid tank for receiving the separated liquid, wherein in the flow path between the suction nozzle and the suction unit, a separation chamber is arranged, which receives the separator and which is connected via a suction with the suction nozzle and a vacuum channel with the suction unit in flow communication and the via a Tankeinlenfin is connected to the liquid tank, wherein the mouth region of the suction channel of the suction nozzle in the direction of the separator on a direct path liquid-conducting via a flow channel into the tank inlet of the liquid itstanks is addressed.
  • liquid side is only fed directly into the tank inlet when the device is used in a horizontal operation for the extraction of approximately horizontal surfaces.
  • the invention is therefore based on the object, both in horizontal and in an obliquely downward operation of the device, for the extraction of both vertical and horizontal surfaces, to ensure that the collected dirty water is always passed immediately into the liquid tank.
  • the invention is characterized by the technical teaching of claim 1.
  • a feature of the invention is that it completely dispenses with intermediate storage areas which surround the mouth region of the suction and the vacuum line and instead establishes a direct liquid-conducting connection between the mouth region of the suction and the vacuum line and the tank inlet of the liquid tank.
  • the mouth region of the suction channel is formed as an inclined surface which is directed obliquely against an opposite, angled wall portion of the first separation wall, wherein the wall portion deflects a fluid stream impinging there laterally adjacent to the mouth region into the flow channel.
  • the segregation wall with an angled wall section is taken to ensure that when dirty water is sucked into the device from the mouth of the suction channel, this dirty water stream, which is interspersed with air particles, meets an obliquely angled wall portion of the first separation wall, and is deflected from this angled wall portion so that it is no longer deflected back into the mouth region of the suction channel, but is deflected laterally adjacent to the mouth region in the wegmixden flow channel, so as to achieve an introduction of the sucked dirty liquid into the flow channel before the first separation device.
  • the mouth region of the suction channel merges directly into the flow channel, which flow channel forms the one side of the separator, wherein the one side of the flow channel from a directly adjacent to the mouth region wall surface is formed, and the opposite side of the flow channel is formed from the wall portions of the first separation wall.
  • a second wall section aligned at an angle adjoins the first wall section arranged in the mouth region of the suction channel, which directs a liquid stream impinging there back into the mouth region of the suction channel.
  • the tank inlet is arranged in the transition region between these two angled tank areas of the liquid tank.
  • the figure A shows as a prior art Hart vomabsaug réelle after the subject of the DE 10 2008 004 965 B3 during suction of an approximately horizontally directed surface 61, which is occupied by liquid dirt 8.
  • a squeegee 7 is arranged, which is moved with the movement of the cleaning device 1 from left to right on the horizontal surface 61.
  • the suction nozzle 6 takes under the action of the suction unit 40, the liquid dirt 8 in the interior of the container by a subsequent to the suction nozzle 6 suction channel 9.
  • the suction unit 40 essentially consists of a suction wing 41, which is driven by a motor 42.
  • the suction air is supplied via a suction chamber 25 to a separation device, which consists according to the prior art of a separation wall 45, on which the sucked liquid dirt 8 emerges in the indicated arrow directions from the mouth region 49 of the suction channel 9 and is deflected by the separation wall 45, so that the liquid fraction deposited there flows into storage areas 59, 60 arranged next to the mouth region 49.
  • These intermediate storage areas 59, 60 surround the mouth region 49 of the suction channel 9 and are provided for temporary storage of received liquid dirt.
  • the suction air is introduced via the suction chamber 25 to the separation wall 46 on both sides, so that a first flow channel 15a is formed on the left side of the separation wall 45 and a second flow channel 15 on the right side of the separation wall and suction air acts on both sides of the separation wall 45 ,
  • the cleaning device 1 - held in the position of use shown in FIG. A - should from time to time be raised to a horizontal position in order to ensure that the liquid dirt particles stored in the storage areas 59, 60 move in the direction indicated by the arrow Include liquid tank 4.
  • the mouth region is formed as an inclined surface 50.
  • the liquid dirt 8 is taken up by the suction nozzle 6 and conveyed via the suction channel 9 in the mouth region 49 of the suction channel 9, wherein a calibrated with about its length with the same cross section flow channel 15 is provided by a lower housing wall of the housing and the upper separation wall 45 is formed. It is therefore a fluid-conducting, direct connection of the mouth region 49 via the flow channel 15 directly into the tank inlet 47 of the liquid tank 4, without intermediate storage areas for the deposition of liquid dirt are given in the illustrated, lowered down working position.
  • the air flow path overcomes a second separation device with a separation wall 46, where any liquid parts that may still be contained in the gas component are separated again and likewise flow downwardly through the separation wall 45 of the first separation device into the tank inlet 47 of the liquid tank 4 due to gravity.
  • the main air flow 54 is sucked by an air filter, which is arranged in front of the suction unit 40 and the suction wing 41.
  • FIG. 2 further details for the presentation in FIG. 1 , where the FIG. 2 only an enlarged view FIG. 1 is.
  • the mouth region 49 is formed at the end by an inclined surface 50 and that thus the liquid dirt emerging from this inclined surface of the mouth region 49 in the direction of the arrow 10 enters a flow space 14 which adjoins a flow channel 15.
  • the air and water particles entering in the flow space 14 are reflected at an angled deflection surface 45a of the separation wall 45 and directed obliquely downwards next to the mouth region 49 into the lower part and the inlet of the flow channel 15. This ensures that no water can settle on these parts.
  • the mouth region 49 also forms a lateral deflecting surface 37 in order to ensure that no liquid dirt can settle in the empty chamber 36 which adjoins the mouth region 49 on the left.
  • This is calibrated particularly small and is bounded on the wall by an arc-shaped deflector 38, which projects into the interior of the empty chamber 36 and further by a further angled Abweis phenomenon 45 b, which is part of the Abscheidewand 45.
  • the deflection surface 45b is angled so that a liquid flow occurring on this surface is reflected back into the mouth region 49 and is transported from there into the suction channel 15. This ensures that the empty chamber 36 can not fill with dirty water.
  • the flow channel 15 is formed by a lower wall surface 16 of the housing or an associated, arranged in the housing further surface, and the upper side of the flow channel 15 is formed by the Abscheidewand 45.
  • the long, straight leg of the separation wall 45 is formed as a deflecting surface 45 c, and this leg is directed directly as a straight line 20 in about the middle of the tank inlet 47.
  • the front end face of Abweisamide 45c forms a deflection end 24 for the gas flow there along 54 (see FIG. 1 ).
  • the second separation device consists of a second separation wall 46, which is connected in the region of the suction chamber 25 adjoining the first separation wall 45 upstream.
  • the suction chamber consists of multiple cross-sectionally changing channel cross-sections, wherein in each channel cross-section initially to an expansion and then to a compression of the still along along guided gas flow, which is possibly still provided with liquid fractions.
  • the suction chamber 25 is bounded on the right side by a sloping wall 26, which makes it possible that the liquid particles impinging there are returned in the direction of arrow 27 into the tank inlet 47.
  • a further deflecting surface 58 is provided as a boundary of the suction chamber 25, and the front end of the Abweisamide 58 is formed by an arcuate arc portion 29, which reduces the volume of the suction chamber 25 in the direction of the second separator with the separation wall 46.
  • an expansion of the air flow path 54 initially occurs in the suction space 25, and the arc section 29 defines an adjoining constriction 28, where the gas stream is compressed and then in turn is passed under expansion into an expansion space 30 adjoining it upstream.
  • This expansion space 30 is bounded on the wall side by the separation wall 46 at the top, the separation wall consisting of a straight wall section and an adjoining, angled wall section 46a.
  • the gas stream which may still be provided with liquid particles, flows into the expansion space 30 and is in turn compressed by the angled wall portion 46 a, so as to be introduced into a deflection space 33 where it immediately the suction channel for the suction unit 40 with the suction 41th forms.
  • the repeatedly changing cross-section of the channel ensures on the one hand a better separation effect and on the other hand an effective sound suppression of the suction sound.
  • the air flow is accordingly deflected in the direction of arrow 63 around the angled end of the wall section 46a and then impinges directly on the vacuum channel 35 on the suction filter 34, where the gas flow is sucked by the suction unit 40.
  • the left boundary of the deflection space 33 is formed by a housing wall 62 of the housing of the cleaning device 1.
  • FIG. 2 also shows that a central longitudinal axis through the tank inlet 47, which is shown as a mouth line 22, at an angle 23 to the Straight line 20 is directed through the separation wall 45. It follows that the flow channel 15 in the in FIG. 2 shown use position of the cleaning device 1 is directed obliquely down to allow a gravity-related liquid line of liquid dirt 8 directly into the tank inlet 47 of the tank 4.
  • the liquid tank 4 preferably consists of two mutually angled sections.
  • the lower section 4b fills in the in FIG. 2 shown position of use steadily with the separated liquid 19 of the liquid dirt 8, while the angled thereto further section 4a of the liquid tank 4 fills in the other positions of use of the cleaning device, especially in the horizontally upright position of use after FIGS. 4 and 5 ,
  • the two mutually angled portions 4a, 4b are preferably angled approximately at an angle of 60 to 110 degrees - more preferably, however, at an angle between 70 to 90 degrees to each other, wherein in the transition region between the two sections 4a, 4b of the tank inlet 47 is arranged.
  • the inclined surface 50 of the mouth region forms a straight line 11 which has an angle 13 to the horizontal 12. In this way, it is ensured that the air and gas particles exiting in the direction of arrow 10 to the mouth region 49 on the opposite Abweisamide 45a of Abborgewand 45 and reflected there in the flow channel 15, where they then immediately - due to the oblique inclination of the flow channel 15 - flow into the tank inlet.
  • the lower edge of the flow channel 15, which is formed by the wall surface 16, goes here as possible interruption in the lower edge of the Tank inlet 47 over to allow easy inflow of liquid parts 55 in the tank.
  • FIG. 3 shows that the cleaning device 1 in the position of use after the FIGS. 1 and 2 in the cleaning direction 53 is passed over the ablated horizontal surface 61.
  • FIGS. 4 and 5 show the other position of use of the cleaning device 1 for cleaning a vertical surface 57 (see FIG. 5 ), which in turn adheres a liquid 52 mixed with dirt particles.
  • the cleaning device 1 has a handle 2, in which a battery 43 is arranged. This is by a power cable to a charging socket. 3 charged.
  • the battery drives the motor 42, which in turn drives the suction vane 41.
  • the suction unit 40 is formed from the suction vane 41 and the motor 42.
  • a suction filter 44 is arranged in the housing 48 of the suction unit 40.
  • the electrical functional components are arranged on a circuit board 44.
  • the tank 4 is closed by a tank closure 32 arranged on the front side in the tank section 4b. At the bottom surface of the tank portion 4a, a maximum indicator 31 is arranged. Once the cleaner in the vertically raised position according to FIG. 4 is pivoted clockwise by a further 90 degrees, the liquid level in section 4a of the tank 4 can be read. If it reaches the maximum display 31, the tank must be emptied.
  • FIG. 5 shows the course of the suction flow (flow path 51) in a horizontal operating position of the cleaning device 1 according to FIG. 4 ,
  • the direction of gravity is indicated here by reference arrow 56.

Landscapes

  • Cleaning In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Separating Particles In Gases By Inertia (AREA)
EP14003876.1A 2013-12-17 2014-11-18 Tragbares Hartflächenabsauggerät Not-in-force EP2886029B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013021277.4A DE102013021277A1 (de) 2013-12-17 2013-12-17 Tragbares Hartflächenabsauggerät

Publications (2)

Publication Number Publication Date
EP2886029A1 EP2886029A1 (de) 2015-06-24
EP2886029B1 true EP2886029B1 (de) 2017-01-04

Family

ID=52015791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14003876.1A Not-in-force EP2886029B1 (de) 2013-12-17 2014-11-18 Tragbares Hartflächenabsauggerät

Country Status (5)

Country Link
EP (1) EP2886029B1 (zh)
CN (1) CN104433950B (zh)
AU (1) AU2014277698B2 (zh)
DE (1) DE102013021277A1 (zh)
NZ (1) NZ702512A (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015108527A1 (de) * 2015-05-29 2016-12-01 Vorwerk & Co. Interholding Gmbh Flüssigkeitssaugeinrichtung
PL3518720T3 (pl) * 2016-09-28 2020-11-30 Alfred Kärcher SE & Co. KG Dysza ssąca i urządzenie odsysające do twardych powierzchni
CN107320007B (zh) * 2017-06-05 2023-01-17 凌度(广东)智能科技发展有限公司 幕墙清洁机器人的清洗装置
EP3763263B1 (de) 2019-07-12 2024-08-07 Leifheit AG Tragbares sauggerät
KR20210070191A (ko) * 2019-12-04 2021-06-14 비쎌 인코포레이티드 휴대용 추출 청소기

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1264002A (en) * 1985-09-05 1989-12-27 David P. Garner Surface cleaning apparatus
US6968593B1 (en) * 2001-08-14 2005-11-29 Bissell Homecare, Inc. Hand-held deep cleaner
DE102008004966A1 (de) * 2008-01-11 2009-07-23 Alfred Kärcher Gmbh & Co. Kg Saugdüse
DE102008004965B3 (de) 2008-01-11 2009-05-14 Alfred Kärcher Gmbh & Co. Kg Tragbares Hartflächenabsauggerät
DE102008004964B3 (de) * 2008-01-11 2009-05-14 Alfred Kärcher Gmbh & Co. Kg Hartflächenabsauggerät
DE102011050697A1 (de) * 2011-05-27 2012-11-29 Leifheit Ag Flüssigkeitssaugvorrichtung zum Abziehen und Aufsaugen von Flüssigkeiten
CN102599863A (zh) * 2012-03-26 2012-07-25 朱厚林 一种用于地板的地拖吸水器
CN102772168A (zh) * 2012-05-24 2012-11-14 朱厚林 一种硬质表面的吸水器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102013021277A1 (de) 2015-07-02
CN104433950B (zh) 2017-07-18
AU2014277698B2 (en) 2019-02-14
CN104433950A (zh) 2015-03-25
AU2014277698A1 (en) 2015-07-02
NZ702512A (en) 2016-08-26
EP2886029A1 (de) 2015-06-24

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