EP2041356B1 - Pump-out section for a detergent solution - Google Patents

Pump-out section for a detergent solution Download PDF

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Publication number
EP2041356B1
EP2041356B1 EP07730190.1A EP07730190A EP2041356B1 EP 2041356 B1 EP2041356 B1 EP 2041356B1 EP 07730190 A EP07730190 A EP 07730190A EP 2041356 B1 EP2041356 B1 EP 2041356B1
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EP
European Patent Office
Prior art keywords
pump
region
tube
wash liquor
out section
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
Application number
EP07730190.1A
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German (de)
French (fr)
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EP2041356A1 (en
Inventor
Edwin Bolduan
Necdet Patel
Wolfgang Proppe
Raymond Römer
Horst Wiemer
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.)
BSH Hausgeraete GmbH
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BSH Bosch und Siemens Hausgeraete GmbH
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Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL07730190T priority Critical patent/PL2041356T3/en
Publication of EP2041356A1 publication Critical patent/EP2041356A1/en
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Publication of EP2041356B1 publication Critical patent/EP2041356B1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit

Definitions

  • the invention relates to a Laugenabpumpstrang with a return tank whose volume is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the laundry drum by gravity, and with a lower Abpump effets Published and with an upper Abpump effets Published.
  • the Laugenabpumpstrang the washing machine comprises at least one return tank and a lower and an upper Abpump effets founded.
  • the volume of Laugenabpumpstrangs is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the laundry drum by gravity, if necessary, using a reflux valve.
  • the lower Abpump effets Kunststoff, the return tank and the upper Abpump effets founded are integrally or continuously in the form of an at least partially flexible hose, wherein the hose at least partially guided by a hose holder, d. H. shaped and / or fixed, is.
  • the Laugenabpumpstrang thus comprises in minimal execution only two parts, namely hose and hose holder.
  • the Laugenabpumpstrang must generally fulfill only the functions of the known return tank and Abpumptechnischs Kunststoffe with respect to the alkali return; he does not have to replicate the shape of the known Laugenabpumpstrfite. Thus, the function of return tank and Abpump effets yogurt (s) can be combined in a hose section.
  • the production is simplified and cheaper, secondly, the assembly is easier and third, the reliability is increased.
  • the Laugenabpumpstrangs at least one intermediate piece is integrated into the tube, in particular when the intermediate piece has the shape of a smooth neck with a vent hole.
  • the nozzle is so short that the flexibility of the tube in the region of the tube holder or its assembly are not significantly limited.
  • the Laugenabpumpstrang but may also have multiple spacers, z. B. another nozzle with ventilation device, z.
  • sensors such as pressure or fluid sensors.
  • the Laugenabpumpstrang comprises a hose holder having a sealing region with an introduced therein, preferably cylinder-like or in the horizontal cross-section annular hose leadthrough and having introduced there a connecting piece, and if the smooth neck of the hose sealing in the hose leadthrough the sealing region of the hose holder can be introduced.
  • the outer shape of the sealing area is not fixed.
  • the sealing of the smooth neck in the sealing area is conveniently done by sealing elements such as O-rings, especially if the neck is bounded on both sides by the O-rings.
  • the ventilation hole is positioned exactly in the area of the connecting piece. This can be done for example by guide elements such. As rails, grooves, etc. are supported.
  • the hose is advantageously fixable in the sealing area.
  • the inner volume of the tube can generally be designed in a simple manner so that the volume corresponding to the known liquor pumping strands is set, for example over the length or the inner diameter of the tube.
  • the hose is at least partially a corrugated hose, preferably made of plastic, in particular polypropylene.
  • the inner diameter of the hose is dimensioned differently or variably, in particular if it has an enlarged diameter in the connection area to the washing machine.
  • the hose holder has a device for connection to the first straight portion, which then merges over a curved portion in a second straight portion, which is perpendicular to the first straight portion.
  • the sealing area is conveniently integrated in the second straight section.
  • the hose When attached to the washing machine device, it may be advantageous to increase the volume, if in the connection area to the device, the hose is circular or arcuate laying and has a corresponding length.
  • a laundry drum 6 is rotatably mounted about a horizontal axis.
  • the tub 2 can be supplied via a line 8, a solenoid valve 10 and a Waschstoffein Kunststoff Road 12 water.
  • the highest achievable in the tub 2 water level 16 is shown schematically by a dashed line.
  • a drain line 20 is connected, which leads via a Flusenabscheider 22 to the suction side of a drain pump 24.
  • a drain hose 25, 26 is connected, which consists of a lower Abpumptechnischs laminate 25 and an upper Abpump effetsogni 26, which are interconnected by a return tank 30, wherein the two Abpump effets laminatee bendable and preferably so-called corrugated tubes are.
  • the upper discharge line 26 may be connected to a drain or hung in a drainage basin 28.
  • the volume of the return tank 30 is about so large that after pumping out of the liquor, when the drain pump 24 is stopped, coming from the Abpumpschlauch 25, 26 and the return tank 30 through the drain pump 24 lye comes to a level which something is above the height of the bottom portion 18 of the tub 2. This ensures that with subsequent addition of detergent from Waschstoffein Letnd 12 this detergent does not disappear in the drain line 20 at the bottom 18 of the tub 2, but is rinsed by the also newly added water to the water pipe 8 in the laundry drum 6.
  • hose holder 1 is shown in an oblique perspective. This has a downwardly directed in the direction of the Y0 axis first straight portion 9, which merges over a curved portion in a second straight portion 11, which is perpendicular to the first straight portion in the direction of the Z0 axis.
  • a cylinder-like or in horizontal cross-section annular sealing portion 13 is integrated, which has a laterally mounted connection piece 3.
  • the hose holder 1 is provided with apertures for improved mountability, weight and cost savings and laterally open outside the sealing region 13.
  • brackets or mounting aids 15 are also integrated.
  • Fig. 3 shows the same hose holder 1 ( Fig. 1 ) in another view resulting from the axbox.
  • Fig. 4 shows in one too Fig. 3 a Laugenabpumpstrang 5 with hose holder 1 and guided therein hose 17.
  • This Laugenabpumpstrang 5 replaces that of the prior art, which in Fig. 1 with 25, 26, 30 is designated.
  • the lower opening 19 is provided for the inlet connection to the pressure side of the drain pump 24 of a washing machine, the upper opening 21 is for connection to an outlet, z.
  • an outflow 28 e.g. Fig. 1
  • Fig. 5 shows a sketch of the sealing region 13 associated portion of the tube 17.
  • the tube 17 consists essentially of corrugated pipe segments made of polypropylene (PP).
  • PP polypropylene
  • In the tube 17 is a smooth, cylindrical or neck-like portion integrated as a ventilation device 27.
  • a ventilation device 27 For better visibility of the details of the hose formation in the sealing region 13 of this part of the hose from the total length of the hose 17 is broken out and shown larger than the other parts of the tube 17.
  • a vent hole 29 which in the assembled state under the spigot 3 of the hose holder 1 is positioned outside the aerator 27 sealing O-rings 23 are mounted.
  • the O-rings 23 seal the inner annular sealing region 13 on the ventilation device 27 and thus the connecting piece 3 axially.
  • the ventilation hole 29 is positioned just in front of the connecting piece 3, which is z. B. can be achieved by appropriate guides. However, if the annular area at the level of the ventilation hole 29 has a sufficiently large distance from the inner wall of the hose holder 1, an exact comparison of the ventilation hole 29 with the inlet of the connecting piece 3 is not mandatory.
  • the hose 17 is provided in the sealing region 13 of the hose holder 1 with the ventilator 27 of the hose 17 which is sealed in the axial direction (see also FIGS Fig. 5 ).
  • sealing in this case O-rings 23
  • sealing region 13 of the tube 17 is usefully fixed to the hose holder 1, z. B. by a pressure connection via the O-rings 23, or by other methods such as bonding, locking, screwing, etc.
  • the tube 17 When connected to a washing machine, the tube 17 may conveniently be so long that it is laid in the region of the device connection in a circular arc o. ⁇ ., So that additional volume is created by this sheet. At the same time, increasing the inner diameter can create more volume in this area.
  • the length of the tube 17 can be adjusted as needed.
  • the Laugenabpumpstrang 5 can be adapted to the structural conditions, for. B. by varying the shape, diameter, length, material, etc.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Description

Die Erfindung betrifft einen Laugenabpumpstrang mit einem Rücklaufbehälter, dessen Volumen so bemessen ist, dass bei abgeschalteter Laugenpumpe eine vorbestimmte Laugenmenge durch die Laugenpumpe hindurch unter die Wäschetrommel durch Schwerkraft zurückströmen kann, und mit einem unteren Abpumpleitungsstück und mit einem oberen Abpumpleitungsstück.The invention relates to a Laugenabpumpstrang with a return tank whose volume is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the laundry drum by gravity, and with a lower Abpumpleitungsstück and with an upper Abpumpleitungsstück.

Aus DE 35 06 761 C2 sowie aus DE 100 58 413 A1 ist eine Waschmaschine dieser Art mit einem Laugenpumpenstrang bekannt, der ein an der Druckseite der Laugenpumpe angeschlossenes unteres Abpumpleitstück, ein z. B. an einen Abfluss anschließbares oberes Abpumpleitstück und einen zwischengeschalteten Rücklaufbehälter aufweist. Der Rücklaufbehälter ist in DE 35 06 761 C2 zweistückig und in DE 100 58 413 A1 einstückig hergestellt. Die Abpumpleitstücke und der Rücklaufbehälter sind mit üblichen Mitteln wie Muffen usw. miteinander verbunden. Das Volumen des Laugenpumpenstrangs ist so bemessen, dass bei abgeschalteter Laugenpumpe eine vorbestimmte Laugenmenge aus dem Laugenabpumpstrang durch die Laugenpumpe hindurch unter die Wäschetrommel durch Schwerkraft zurückfließen kann. Dies kann durch einfachen Rückfluss der Lauge geschehen, aber beispielsweise auch dadurch, dass die zurückfließende Lauge eine Ventilkugel des Ablaufschlauchs in einen Dichtsitz bringt.Out DE 35 06 761 C2 as well as out DE 100 58 413 A1 is a washing machine of this type with a Laugenpumpenstrang known, which is connected to the pressure side of the drain pump lower Abpumpleitstück, z. B. to a drain connectable upper Abpumpleitstück and an intermediate return tank. The return tank is in DE 35 06 761 C2 two-piece and in DE 100 58 413 A1 made in one piece. The Abpumpleitstücke and the return tank are connected by conventional means such as sleeves etc. together. The volume of the Laugenpumpenstrangs is such that when the drain pump is switched off, a predetermined amount of liquor from the Laugenabpumpstrang can flow back through the drain pump under the laundry drum by gravity. This can be done by simple reflux of the liquor, but for example also by the fact that the returning liquor brings a valve ball of the drain hose in a sealing seat.

Bei den bekannten Laugenabpumpsträngen ist es nachteilig, dass Herstellung und Montage vergleichsweise aufwendig sind.In the known Laugenabpumpsträngen it is disadvantageous that production and installation are relatively expensive.

Es ist daher die Aufgabe der vorliegenden Erfindung, einen kostengünstigen und montagefreundlichen Laugenabpumpstrang bereitzustellen.It is therefore the object of the present invention to provide a low-cost and easy to install Laugenabpumpstrang.

Diese Aufgabe wird bei einem eingangs beschriebenen Laugenabpumpstrang durch die kennzeichnenden Merkmale des Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen sind den abhängigen Ansprüchen entnehmbar. Ihre Merkmale sind einzeln oder in Kombination miteinander und mit denen des Anspruches 1 kombinierbar.This object is achieved in a Laugenabpumpstrang described above by the characterizing features of claim 1. Advantageous embodiments can be taken from the dependent claims. Their characteristics are individually or in combination with each other and with those of claim 1 combined.

Der Laugenabpumpstrang der Waschmaschine umfasst mindestens einen Rücklaufbehälter sowie ein unteres und ein oberes Abpumpleitungsstück. Das Volumen des Laugenabpumpstrangs ist so bemessen, dass bei abgeschalteter Laugenpumpe eine vorbestimmte Laugenmenge durch die Laugenpumpe hindurch unter die Wäschetrommel durch Schwerkraft zurückströmen kann, bedarfsweise unter Verwendung eines Rückflussventils. Das untere Abpumpleitungsstück, der Rücklaufbehälter und das obere Abpumpleitungsstück sind einstückig bzw. durchgehend in Form eines mindestens teilweise flexiblen Schlauchs ausgeführt sind, wobei der Schlauch mindestens teilweise durch einen Schlauchhalter geführt, d. h. geformt und / oder fixiert, ist. Der Laugenabpumpstrang umfasst in minimaler Ausführung somit nur noch zwei Teile, nämlich Schlauch und Schlauchhalter. Der Laugenabpumpstrang muss allgemein nur die Funktionen der bekannten Rücklaufbehälter und Abpumpleitungsstücke in Bezug auf den Laugenrückfluss erfüllen; er muss nicht die Form der bekannten Laugenabpumpstränge nachbilden. So kann auch die Funktion von Rücklaufbehälter und Abpumpleitungsstück(en) in einem Schlauchabschnitt kombiniert sein.The Laugenabpumpstrang the washing machine comprises at least one return tank and a lower and an upper Abpumpleitungsstück. The volume of Laugenabpumpstrangs is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the laundry drum by gravity, if necessary, using a reflux valve. The lower Abpumpleitungsstück, the return tank and the upper Abpumpleitungsstück are integrally or continuously in the form of an at least partially flexible hose, wherein the hose at least partially guided by a hose holder, d. H. shaped and / or fixed, is. The Laugenabpumpstrang thus comprises in minimal execution only two parts, namely hose and hose holder. The Laugenabpumpstrang must generally fulfill only the functions of the known return tank and Abpumpleitungsstücke with respect to the alkali return; he does not have to replicate the shape of the known Laugenabpumpstränge. Thus, the function of return tank and Abpumpleitungsstück (s) can be combined in a hose section.

Durch Bereitstellung des erfindungsgemäßen Laugenabpumpstrangs wird erstens die Herstellung vereinfacht und verbilligt, gestaltet sich zweitens die Montage einfacher und wird drittens die Ausfallsicherheit erhöht.First, by providing the Laugenabpumpstrangs invention, the production is simplified and cheaper, secondly, the assembly is easier and third, the reliability is increased.

In einer vorteilhaften Ausgestaltung des Laugenabpumpstrangs ist in den Schlauch mindestens ein Zwischenstück integriert, insbesondere wenn das Zwischenstück die Form eines glatten Stutzens mit einem Belüftungsloch aufweist. Günstigerweise ist der Stutzen so kurz, dass die Biegbarkeit des Schlauchs im Bereich des Schlauchhalters bzw. seine Montage nicht merklich eingeschränkt sind. Der Laugenabpumpstrang kann aber auch mehrere Zwischenstücke aufweisen, z. B. einen weiteren Stutzen mit Belüftungseinrichtung, z. B. zur Anbringung von Sensoren, wie Druck- oder Fluidsensoren.In an advantageous embodiment of the Laugenabpumpstrangs at least one intermediate piece is integrated into the tube, in particular when the intermediate piece has the shape of a smooth neck with a vent hole. Conveniently, the nozzle is so short that the flexibility of the tube in the region of the tube holder or its assembly are not significantly limited. The Laugenabpumpstrang but may also have multiple spacers, z. B. another nozzle with ventilation device, z. As for the attachment of sensors, such as pressure or fluid sensors.

Es ist eine besonders vorteilhafte Ausgestaltung, wenn der Laugenabpumpstrang einen Schlauchhalter umfasst, der einen Dichtungsbereich mit einer darin eingebrachten, vorzugsweise zylinderähnlichen bzw. im horizontalen Querschnitt ringförmigen Schlauchdurchführung sowie mit einem dort eingebrachten Anschlussstutzen aufweist, und wenn der glatte Stutzen des Schlauchs dichtend in die Schlauchdurchführung des Dichtungsbereich des Schlauchhalters eingebracht werden kann. Die äußere Form des Dichtungsbereichs ist nicht festgelegt.It is a particularly advantageous embodiment, when the Laugenabpumpstrang comprises a hose holder having a sealing region with an introduced therein, preferably cylinder-like or in the horizontal cross-section annular hose leadthrough and having introduced there a connecting piece, and if the smooth neck of the hose sealing in the hose leadthrough the sealing region of the hose holder can be introduced. The outer shape of the sealing area is not fixed.

Die Abdichtung des glatten Stutzens im Dichtungsbereich geschieht günstigerweise durch Dichtungselemente wie O-Ringe, insbesondere, wenn der Stutzen auf beiden Seiten durch die O-Ringe begrenzt wird.The sealing of the smooth neck in the sealing area is conveniently done by sealing elements such as O-rings, especially if the neck is bounded on both sides by the O-rings.

Es ist zur effektiven Belüftung vorteilhaft, wenn das Belüftungsloch genau im Bereich des Anschlussstutzens positionierbar ist. Dies kann beispielsweise durch Führungselemente wie z. B. Schienen, Nuten etc. unterstützt werden.It is advantageous for effective ventilation, if the ventilation hole is positioned exactly in the area of the connecting piece. This can be done for example by guide elements such. As rails, grooves, etc. are supported.

Der Schlauch ist vorteilhafterweise im Dichtungsbereich fixierbar.The hose is advantageously fixable in the sealing area.

Das Innenvolumen des Schlauchs ist allgemein in einfacher Weise so gestaltbar, dass das den bekannten Laugenabpumpsträngen entsprechende Volumen eingestellt wird, beispielsweise über die Länge oder den Innendurchmesser des Schlauchs.The inner volume of the tube can generally be designed in a simple manner so that the volume corresponding to the known liquor pumping strands is set, for example over the length or the inner diameter of the tube.

Es ist günstig, wenn der Schlauch mindestens teilweise ein Wellrohrschlauch, vorzugsweise aus Kunststoff, insbesondere Polypropylen, ist.It is favorable if the hose is at least partially a corrugated hose, preferably made of plastic, in particular polypropylene.

Es ist zur sicheren Montage und zur verbesserten Funktionstüchtigkeit - u. a. auch als Grobklammerfalle - vorteilhaft, wenn der Innendurchmesser des Schlauchs unterschiedlich bzw. variabel dimensioniert ist, insbesondere wenn er einen vergrößerten Durchmesser im Anschlussbereich zur Waschmaschine aufweist.It is for safe installation and improved functionality - u. a. Also as a Grobklammerfalle - advantageous if the inner diameter of the hose is dimensioned differently or variably, in particular if it has an enlarged diameter in the connection area to the washing machine.

Vorteilhafterweise weist der Schlauchhalter einen zum Geräteanschluss hin ersten geraden Teilbereich auf, der dann über einen gekrümmten Bereich in einen zweiten geraden Teilbereich, der senkrecht zum ersten geraden Teilbereich steht, übergeht. Der Dichtungsbereich ist günstigerweise im zweiten geraden Teilbereich integriert.Advantageously, the hose holder has a device for connection to the first straight portion, which then merges over a curved portion in a second straight portion, which is perpendicular to the first straight portion. The sealing area is conveniently integrated in the second straight section.

Bei an der Waschmaschine anmontiertem Gerät kann es zur Volumenvergrößerung vorteilhaft sein, wenn im Anschlussbereich zum Gerät der Schlauch kreis- oder bogenförmig verlegbar ist und eine entsprechende Länge aufweist.When attached to the washing machine device, it may be advantageous to increase the volume, if in the connection area to the device, the hose is circular or arcuate laying and has a corresponding length.

In den folgenden Ausführungsbeispielen wird der Laugenabpumpstrang schematisch näher ausgeführt. Dabei zeigen

Fig. 1
eine schematisch im Vertikalschnitt dargestellte Waschmaschine mit einem Laugenabpumpstrang,
Fig. 2
eine perspektivische Ansicht eines Schlauchhalters,
Fig. 3
eine weitere perspektivische Ansicht des Schlauchhalters,
Fig. 4
eine perspektivische Ansicht eines Laugenabpumpstrangs mit dem Schlauchhalter aus Fig. 2 und 3 und mit einem passenden Schlauch und
Fig. 5
eine Seitenansicht eines Ausschnitts aus dem Schlauch nach Fig. 4.
In the following embodiments, the Laugenabpumpstrang is schematically illustrated. Show
Fig. 1
a schematically illustrated in vertical section washing machine with a Laugenabpumpstrang,
Fig. 2
a perspective view of a hose holder,
Fig. 3
another perspective view of the hose holder,
Fig. 4
a perspective view of a Laugenabpumpstrangs with the hose holder FIGS. 2 and 3 and with a fitting hose and
Fig. 5
a side view of a section of the hose to Fig. 4 ,

In einem trommelförmigen, durch das Maschinengehäuse 14 umgebenen Laugenbehälter 2 der in Fig. 1 dargestellten, dem Stande der Technik entsprechenden Waschmaschine 4 ist eine Wäschetrommel 6 um eine Horizontalachse drehbar gelagert. Dem Laugenbehälter 2 kann über eine Leitung 8, ein Magnetventil 10 und eine Waschmitteleinspüleinrichtung 12 Wasser zugeführt werden. Das höchste im Laugenbehälter 2 erreichbare Wasserniveau 16 ist durch eine gestrichelte Linie schematisch dargestellt. An den Boden 18 des Laugenbehälters 2 ist eine Ablaufleitung 20 angeschlossen, die über einen Flusenabscheider 22 zu der Saugseite einer Laugenpumpe 24 führt. An die Druckseite der Laugenpumpe 24 ist ein Ablaufschlauch 25, 26 angeschlossen, der aus einem unteren Abpumpleitungsstück 25 und einem oberen Abpumpleitungsstück 26 besteht, die durch einen Rücklaufbehälter 30 miteinander verbunden sind, wobei die beiden Abpumpleitungsstücke biegbar und vorzugsweise so genannte Wellrohrschläuche sind. Das obere Abpumpleitungsstück 26 kann an einen Abfluss angeschlossen oder in ein Wasserabflussbecken 28 gehängt werden.In a drum-shaped, surrounded by the machine housing 14 tub 2 in Fig. 1 illustrated, the prior art corresponding washing machine 4, a laundry drum 6 is rotatably mounted about a horizontal axis. The tub 2 can be supplied via a line 8, a solenoid valve 10 and a Waschmitteleinspüleinrichtung 12 water. The highest achievable in the tub 2 water level 16 is shown schematically by a dashed line. To the bottom 18 of the tub 2, a drain line 20 is connected, which leads via a Flusenabscheider 22 to the suction side of a drain pump 24. To the pressure side of the drain pump 24, a drain hose 25, 26 is connected, which consists of a lower Abpumpleitungsstück 25 and an upper Abpumpleitungsstück 26, which are interconnected by a return tank 30, wherein the two Abpumpleitungsstücke bendable and preferably so-called corrugated tubes are. The upper discharge line 26 may be connected to a drain or hung in a drainage basin 28.

Das Volumen des Rücklaufbehälters 30 ist ungefähr so groß, dass nach dem Abpumpen von Lauge, wenn die Laugenpumpe 24 stillgesetzt ist, die aus dem Abpumpschlauch 25, 26 und dem Rücklaufbehälter 30 durch die Laugenpumpe 24 zurückströmende Lauge auf einem Niveau zu stehen kommt, welches etwas über der Höhe des Bodenbereiches 18 des Laugenbehälters 2 liegt. Dadurch wird sichergestellt, dass bei anschließender Zugabe von Waschmittel aus der Waschmitteleinspüleinrichtung 12 dieses Waschmittel nicht in der Ablaufleitung 20 am Boden 18 des Laugenbehälters 2 verschwindet, sondern von dem ebenfalls neu hinzuzuführenden Wasser der Wasserleitung 8 in die Wäschetrommel 6 gespült wird.The volume of the return tank 30 is about so large that after pumping out of the liquor, when the drain pump 24 is stopped, coming from the Abpumpschlauch 25, 26 and the return tank 30 through the drain pump 24 lye comes to a level which something is above the height of the bottom portion 18 of the tub 2. This ensures that with subsequent addition of detergent from Waschmitteleinspüleinrichtung 12 this detergent does not disappear in the drain line 20 at the bottom 18 of the tub 2, but is rinsed by the also newly added water to the water pipe 8 in the laundry drum 6.

In Fig. 2 ist in schräger Perspektive ein Schlauchhalter 1 gezeigt. Dieser weist einen nach unten in Richtung der Y0-Achse gerichteten ersten geraden Teilbereich 9 auf, der über einen gekrümmten Bereich in einen zweiten geraden Teilbereich 11, der senkrecht zum ersten geraden Teilbereich in Richtung der Z0-Achse steht, übergeht. In den zweiten geraden Teilbereich 11 ist ein zylinderähnlicher bzw. im horizontalen Querschnitt ringförmiger Dichtungsbereich 13 integriert, der einen seitlich angebrachten Anschlussstutzen 3 aufweist. Der Schlauchhalter 1 ist zur verbesserten Montierbarkeit, Gewichts- und Kosteneinsparung mit Durchbrechungen versehen und außerhalb des Dichtungsbereichs 13 seitlich offen. In den Dichtungsbereich 13 sind außerdem Halterungen bzw. Montierhilfen 15 integriert.In Fig. 2 an hose holder 1 is shown in an oblique perspective. This has a downwardly directed in the direction of the Y0 axis first straight portion 9, which merges over a curved portion in a second straight portion 11, which is perpendicular to the first straight portion in the direction of the Z0 axis. In the second straight portion 11, a cylinder-like or in horizontal cross-section annular sealing portion 13 is integrated, which has a laterally mounted connection piece 3. The hose holder 1 is provided with apertures for improved mountability, weight and cost savings and laterally open outside the sealing region 13. In the sealing region 13 brackets or mounting aids 15 are also integrated.

Fig. 3 zeigt denselben Schlauchhalter 1 (Fig. 1) in einer anderen Ansicht, die sich aus dem Achsenkreuz ergibt. Fig. 3 shows the same hose holder 1 ( Fig. 1 ) in another view resulting from the axbox.

Fig. 4 zeigt in einer zu Fig. 3 analogen Ansicht einen Laugenabpumpstrang 5 mit Schlauchhalter 1 und darin geführtem Schlauch 17. Dieser Laugenabpumpstrang 5 ersetzt denjenigen aus dem Stand der Technik, der in Fig. 1 mit 25, 26, 30 bezeichnet ist. Die untere Öffnung 19 ist zum einlassenden Anschluss an die Druckseite der Laugenpumpe 24 einer Waschmaschine vorgesehen, die obere Öffnung 21 ist zum Anschluss an einen Auslass, z. B. an einen Abfluss 28 (Fig. 1), gedacht. Fig. 4 shows in one too Fig. 3 a Laugenabpumpstrang 5 with hose holder 1 and guided therein hose 17. This Laugenabpumpstrang 5 replaces that of the prior art, which in Fig. 1 with 25, 26, 30 is designated. The lower opening 19 is provided for the inlet connection to the pressure side of the drain pump 24 of a washing machine, the upper opening 21 is for connection to an outlet, z. To an outflow 28 (e.g. Fig. 1 ), thought.

Fig. 5 zeigt skizzenhaft einen dem Dichtungsbereich 13 zugeordneten Abschnitt des Schlauches 17. Der Schlauch 17 besteht im wesentlichen aus Wellrohr-Segmenten aus Polypropylen (PP). In den Schlauch 17 ist ein glatter, zylinder- oder stutzenähnlicher Abschnitt als Belüftungseinrichtung 27 integriert. Zur besseren Erkennbarkeit der Einzelheiten der Schlauch-Ausbildung im Dichtungsbereich 13 ist dieser Teil des Schlauches aus der Gesamtlänge des Schlauches 17 heraus gebrochen und größer dargestellt als die übrigen Teile des Schlauches 17. In axialem Abstand von einem Belüftungsloch 29, das im Montagezustand unter dem Anschlussstutzen 3 des Schlauchhalters 1 positioniert ist, sind außen an der Belüftungseinrichtung 27 dichtende O-Ringe 23 angebracht. Bei Einführen des Schlauches 17 in den Dichtungsbereich 13 des Schlauchhalters 1 dichten die O-Ringe 23 den inneren ringförmigen Dichtungsbereich 13 an der Belüftungseinrichtung 27 und damit den Anschlussstutzen 3 axial ab. Idealerweise ist das Belüftungsloch 29 genau vor dem Anschlussstutzen 3 positioniert, was sich z. B. durch entsprechende Führungen erreichen lässt. Sofern allerdings der ringförmige Bereich in Höhe des Belüftungsloches 29 genügend großen Abstand hat zur Innenwand des Schlauchhalters 1, ist eine exakte Gegenüberstellung des Belüftungsloches 29 mit dem Eingang des Anschlussstutzens 3 nicht zwingend. Fig. 5 shows a sketch of the sealing region 13 associated portion of the tube 17. The tube 17 consists essentially of corrugated pipe segments made of polypropylene (PP). In the tube 17 is a smooth, cylindrical or neck-like portion integrated as a ventilation device 27. For better visibility of the details of the hose formation in the sealing region 13 of this part of the hose from the total length of the hose 17 is broken out and shown larger than the other parts of the tube 17. At an axial distance from a vent hole 29, which in the assembled state under the spigot 3 of the hose holder 1 is positioned outside the aerator 27 sealing O-rings 23 are mounted. Upon insertion of the hose 17 into the sealing region 13 of the hose holder 1, the O-rings 23 seal the inner annular sealing region 13 on the ventilation device 27 and thus the connecting piece 3 axially. Ideally, the ventilation hole 29 is positioned just in front of the connecting piece 3, which is z. B. can be achieved by appropriate guides. However, if the annular area at the level of the ventilation hole 29 has a sufficiently large distance from the inner wall of the hose holder 1, an exact comparison of the ventilation hole 29 with the inlet of the connecting piece 3 is not mandatory.

Der Schlauch 17 ist im Dichtungsbereich 13 des Schlauchhalters 1 mit der in axialer Richtung abgedichteten Belüftungseinrichtung 27 des Schlauches 17 versehen (siehe auch Fig. 5). Durch die Abdichtung (hier O-Ringe 23) wird gewährleistet, dass aus dem Schlauch 17 durch die Belüftungseinrichtung 27 gelangende flüssige Lauge oder Laugendampf durch den Anschlussstutzen 3 und einen darauf dichtend aufgesetzten Belüftungsschlauch 7 (Fig. 4) ableitbar ist und nicht an den offenen Enden des Dichtungsbereichs 13 in die Umgebung austritt.The hose 17 is provided in the sealing region 13 of the hose holder 1 with the ventilator 27 of the hose 17 which is sealed in the axial direction (see also FIGS Fig. 5 ). By sealing (in this case O-rings 23) it is ensured that from the tube 17 passing through the ventilation device 27 liquid liquor or liquor vapor through the connecting piece 3 and a sealingly attached thereto ventilation hose 7 (Fig. Fig. 4 ) is discharged and does not exit at the open ends of the sealing region 13 in the environment.

Im Dichtungsbereich 13 ist der Schlauch 17 sinnvollerweise am Schlauchhalter 1 fixiert, z. B. durch eine Druckverbindung über die O-Ringe 23, oder aber durch andere Methoden wie Verklebung, Verrastung, Verschraubung usw.In the sealing region 13 of the tube 17 is usefully fixed to the hose holder 1, z. B. by a pressure connection via the O-rings 23, or by other methods such as bonding, locking, screwing, etc.

Im Bereich der unteren Öffnung 19 ist es zur Bereitstellung eines ausreichenden Flüssigkeitsvolumens und für die Funktion als Auffangbehälter bzw. Grobklammernfalle vorteilhaft, wenn dort der Innendurchmesser des Schlauchs 17 vergleichsweise vergrößert ist.In the region of the lower opening 19, it is advantageous to provide a sufficient volume of liquid and to function as a collecting container or coarse clamp if the inner diameter of the tube 17 is comparatively increased there.

Bei Anschluss an eine Waschmaschine kann der Schlauch 17 günstigerweise so lang sein, dass er im Bereich des Geräteanschlusses in einem Kreisbogen o. ä. verlegt ist, so dass durch diesen Bogen zusätzliches Volumen geschaffen wird. Gleichzeitig kann eine Vergrößerung des Innendurchmessers mehr Volumen in diesem Bereich schaffen.When connected to a washing machine, the tube 17 may conveniently be so long that it is laid in the region of the device connection in a circular arc o. Ä., So that additional volume is created by this sheet. At the same time, increasing the inner diameter can create more volume in this area.

Die Länge des Schlauches 17 kann bedarfsgerecht eingestellt werden.The length of the tube 17 can be adjusted as needed.

Allgemein kann der Laugenabpumpstrang 5 den baulichen Gegebenheiten angepasst werden, z. B. durch Variation von Form, Durchmesser, Länge, Material usw.In general, the Laugenabpumpstrang 5 can be adapted to the structural conditions, for. B. by varying the shape, diameter, length, material, etc.

Claims (7)

  1. Wash liquor pump-out section (5) for a washing machine (4) having a laundry drum (6), a drain pump (24) and a return flow tank (30) arranged in the course of the pump-out section, the volume of which is dimensioned such that with the drain pump (24) off a predefined quantity of wash liquor can flow back through the drain pump below the laundry drum (6) due to the force of gravity and having a lower pump-out line piece (25) and an upper pump-out line piece (26), characterised in that the lower pump-out line piece (25), the return flow tank (30) and the upper pump-out line piece (26) are designed in one piece as an at least partially flexible tube (17), which is guided at least partially through a tube holding device (1), which has a sealing region (13) having a preferably cylindrical tube feed-through inserted therein as well as a connector (3) attached thereto, the smooth connector (27) of the tube (17) being able to be inserted into the tube feed-through in a sealing manner.
  2. Wash liquor pump-out section according to claim 1, characterised in that at least one intermediate piece is integrated into the tube (17) in the form of a smooth connector (27) with a ventilation hole (29).
  3. Wash liquor pump-out section according to claim 2, characterised in that the ventilation hole (29) is located precisely in the region of the opening of the connector (3).
  4. Wash liquor pump-out section according to one of claims 1 or 3, characterised in that the tube (17) can be fixed in the sealing region (13).
  5. Wash liquor pump-out section according to one of the preceding claims, characterised in that the tube (17) is a plastic corrugated tube, in particular made out of polypropylene.
  6. Wash liquor pump-out section according to one of the preceding claims, characterised in that the tube (17) has a differently dimensioned internal diameter, in particular an enlarged diameter in the connection region (19) on the appliance side.
  7. Wash liquor pump-out section according to one of the preceding claims, characterised in that the tube holding device (1) comprises a first straight sub-region towards the connection region (19) on the appliance side, said first straight sub-region transitioning via a curved region into a second straight sub-region on the way to the drain region (21), said second straight sub-region being perpendicular to the first straight sub-region.
EP07730190.1A 2006-07-10 2007-06-15 Pump-out section for a detergent solution Active EP2041356B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07730190T PL2041356T3 (en) 2006-07-10 2007-06-15 Pump-out section for a detergent solution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006031861A DE102006031861A1 (en) 2006-07-10 2006-07-10 Laugenabpumpstrang
PCT/EP2007/055949 WO2008006665A1 (en) 2006-07-10 2007-06-15 Pump-out section for a detergent solution

Publications (2)

Publication Number Publication Date
EP2041356A1 EP2041356A1 (en) 2009-04-01
EP2041356B1 true EP2041356B1 (en) 2013-11-06

Family

ID=38537928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730190.1A Active EP2041356B1 (en) 2006-07-10 2007-06-15 Pump-out section for a detergent solution

Country Status (7)

Country Link
US (1) US20100180643A1 (en)
EP (1) EP2041356B1 (en)
CN (2) CN101479422B (en)
DE (1) DE102006031861A1 (en)
EA (1) EA014488B1 (en)
PL (1) PL2041356T3 (en)
WO (1) WO2008006665A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011089625A1 (en) 2011-12-22 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Laugenabpumpstrang for a household appliance for the care of laundry and corresponding household appliance with a Laugenabpumpstrang
CN111304882A (en) * 2018-12-11 2020-06-19 无锡小天鹅电器有限公司 Clothes treatment device and box assembly of clothes treatment device
US11882978B2 (en) 2021-10-05 2024-01-30 Whirlpool Corporation Dishwasher with drain assembly

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3506761C2 (en) 1985-02-26 1994-08-11 Bosch Siemens Hausgeraete Washing machine with a drain pump
AU597596B2 (en) * 1985-10-03 1990-06-07 Miele & Cie. Gmbh & Co. Washing machine drain
IT1216080B (en) * 1988-03-14 1990-02-22 Merloni A Spa METHOD AND DEVICE TO ECONOMIZE DETERGENT, PARTICULARLY FOR AN AUTOMATIC CYCLE WASHING MACHINE.
DE20315156U1 (en) * 2003-10-01 2003-12-11 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Dishwasher and / or washing machine drain hose with integrated valve device
DE10058413B4 (en) * 2000-11-24 2006-07-27 BSH Bosch und Siemens Hausgeräte GmbH Laugenabpumpstrang in a washing machine
ES2208069B1 (en) * 2002-04-03 2005-10-01 Bsh Electrodomesticos España, S.A. WATER EVACUATION DEVICE FOR A WASHING MACHINE.
DE10243779A1 (en) * 2002-09-20 2004-03-25 BSH Bosch und Siemens Hausgeräte GmbH Device for connecting a water-bearing household appliance to a domestic water network
KR100511960B1 (en) * 2002-11-29 2005-09-02 엘지전자 주식회사 Drain hose guide structure of washing machine
CN1600974A (en) * 2003-09-27 2005-03-30 乐金电子(天津)电器有限公司 Structure for setting up drainage flexible tube
DE20319711U1 (en) * 2003-12-19 2004-04-01 Electrolux Home Products Corp. N.V. dishwasher
DE202004011469U1 (en) * 2004-07-22 2004-09-30 BSH Bosch und Siemens Hausgeräte GmbH Detergent dispenser for a water-bearing household appliance

Also Published As

Publication number Publication date
CN101479422B (en) 2011-03-23
EA200970111A1 (en) 2009-06-30
US20100180643A1 (en) 2010-07-22
CN201065486Y (en) 2008-05-28
PL2041356T3 (en) 2014-04-30
DE102006031861A1 (en) 2008-01-17
EP2041356A1 (en) 2009-04-01
WO2008006665A1 (en) 2008-01-17
CN101479422A (en) 2009-07-08
EA014488B1 (en) 2010-12-30

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