EP0890394B1 - High pressure cleaning device - Google Patents

High pressure cleaning device Download PDF

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Publication number
EP0890394B1
EP0890394B1 EP98112343A EP98112343A EP0890394B1 EP 0890394 B1 EP0890394 B1 EP 0890394B1 EP 98112343 A EP98112343 A EP 98112343A EP 98112343 A EP98112343 A EP 98112343A EP 0890394 B1 EP0890394 B1 EP 0890394B1
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EP
European Patent Office
Prior art keywords
cleaning appliance
appliance according
trough
lid
fluid container
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.)
Expired - Lifetime
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EP98112343A
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German (de)
French (fr)
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EP0890394A2 (en
EP0890394A3 (en
Inventor
Andreas Obenland
Rolf Friedrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
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Alfred Kaercher SE and Co KG
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Publication of EP0890394A2 publication Critical patent/EP0890394A2/en
Publication of EP0890394A3 publication Critical patent/EP0890394A3/en
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Publication of EP0890394B1 publication Critical patent/EP0890394B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • B08B3/026Cleaning by making use of hand-held spray guns; Fluid preparations therefor

Definitions

  • the invention relates to a high-pressure cleaning device having a wheel Chassis, with a trough-shaped lower part, with a motor pump unit and with a liquid container.
  • Such mobile high-pressure cleaning devices are usually on a metallic chassis mounted on which individual units in as possible favorable arrangement to be attached.
  • DE 38 23 320 A1 describes a high-pressure cleaning device of the generic type described in which the chassis by a trough-shaped lower part of a Outer housing is formed on which the wheels are mounted. On the a cover is placed on the trough-shaped lower part, and this outer housing then surrounds essential units of the high-pressure cleaning device including a liquid container that runs over a filler neck is accessible from the outside. So there are separate parts for the liquid container and necessary for the chassis, also need fasteners for the motor pump unit and possibly other units be present inside the outer case.
  • the liquid container consists of the trough-shaped lower part and a lid-shaped upper part, the along their congruent, superimposed front edges are interconnected that the wheels are mounted on the liquid container are so that the liquid container and the wheels together the chassis form, and that the motor pump unit on the outside of the liquid container is held.
  • the liquid container takes on the function in this construction of the frame or chassis by placing the wheels directly on the liquid container be stored and by storing the liquid container also forms for the motor pump unit. Metallic frames become thereby unnecessary.
  • Liquid containers for such devices are common relatively complicated, and therefore is the manufacture of such liquid containers difficult.
  • the liquid containers consist of two parts, namely a trough-shaped lower part and a lid-shaped one Top, which are shaped so that their front edges are congruent. In the area the lower and upper parts of these end edges lie against each other and are close together in this area connected. This makes it possible to do even very complicated ones geometric shapes of the liquid containers too realize that will be necessary when the liquid container the chassis function in the manner described should take over.
  • liquid container through inner walls of the trough-shaped lower part and the lid-shaped top, which is also longitudinal their congruent end edges with each other are connected in separate containers is divided.
  • the Liquid containers the most diverse liquid stocks can record next to each other, for example Cleaning chemicals, cleaning water, oil and the like.
  • a container by two identical covers clashing parts are formed can, as a simple blow molded part would be such a container no longer producible.
  • the welding is a mirror weld. That means a weld where the colliding Front edges by the interposition of a flat Heating element heated to softening and then after Removal of the flat heating element assembled under pressure become. With this technique one can Reach welding in the front edge area, namely along the entire leading edge contact area in the same Wise.
  • this support beam in a recess of the bottom of the trough-shaped lower part his.
  • the carrier with the trough-shaped Lower part is connected by tie rods, for example, by bolts that are trough-shaped Reach through the lower part and the support bracket.
  • the tie rod in one Area of the trough-shaped lower part, the between two adjacent outer walls of the trough-shaped lower part is arranged.
  • the tie rod thus does not end in the interior of the liquid container, but in an area outside the liquid container, which is defined by neighboring outer walls becomes.
  • the liquid container surrounds an opening, in which a boiler is arranged.
  • the opening goes completely through the liquid container through, so that the boiler is not on the Liquid container itself rests.
  • the wall of the liquid container keep a distance from the boiler. This ensures that the boiler not directly on all sides with the liquid container comes into contact, so that here a thermal contact is avoided.
  • This carrier can be made of one material poor heat conduction exist, so that this too Way is guaranteed that only a small amount of the boiler Transfer heat to the liquid container become.
  • This carrier can open the opening in the liquid container bridge diametrically. It is convenient if this carrier at the same time a support beam for stabilization of the lower part.
  • the lid-shaped upper part is a trough-shaped Recess to accommodate the motor pump unit having.
  • This depression is bowl-shaped and picks up the motor pump unit that is in it be fixed by suitable fasteners can.
  • the depression in the lid-shaped upper part and the hood attached to the motor pump unit forming a flow path for a cooling medium surrounded, for example for cooling air.
  • the top of the liquid container and the attached hood also take on the task of training a flow path for a cooling medium, so that none additional flow channels must be provided.
  • a flow channel is formed, in which air is led to a heater. Also in this case, this flow channel through the Walls of the lid-shaped upper part itself formed, see above that no additional lines for the burner air are necessary.
  • both are tub-shaped lower part as well as the lid-shaped Upper part in the area of the front edges at least the outside Double-walled walls. This stabilizes the liquid container in the area of Front edges, in addition, the double-walled area in a preferred embodiment, a circumferential Form the bumper.
  • the high-pressure cleaning device shown in the drawing comprises a closed liquid container 1 from a trough-shaped lower part 2 and a lid-shaped Top 3.
  • the trough-shaped lower part 2 is in a partial area annular and surrounds with an inner wall 5 a through opening 4, in the annular portion 6 a plurality of transverse walls 7 are arranged, which the annular section 6 in separate chambers 8 divide.
  • the bottom 9 of the trough-shaped lower part 2 has in its center is a groove-shaped one running in the longitudinal direction Indentation 10 in which a metal side member 11 is inserted, which reinforces the bottom 9.
  • This side member 11 is with bolts 12 connected to the trough-shaped lower part 2.
  • This Bolts 12 pass through the bottom 9 of the trough-shaped Lower part 2 in an area that is separated from the chambers 8 by transverse walls 13 ( Figure 1), i.e. these bolts 12 do not occur the interior of the trough-shaped lower part 2.
  • This chassis is completed by the cover-shaped Upper part 3, which is the trough-shaped lower part 2 closes on the top.
  • the upper part points to this 3 outer walls 16, inner walls 17 and transverse walls 18 on, in the region of their front edges 20 with the front edges 21 of the respective walls of the lower part 2 with the same cover run.
  • these end edges 20 and 21 meet the lower part 2 butt together, over the entire length all walls.
  • lower part 2 and upper part 3 connected to each other, for example by welding or a glue. Is particularly cheap in this context a so-called mirror welding.
  • the upper part 3 is contoured so that in the area the bolt 12 through openings 22 in the upper part 3 are provided through which the bolts are inserted can be.
  • This from liquid container 1, side members 11 and Wheels 14, 15 existing chassis serves as storage for a motor pump unit 26 which in itself known an electric motor, a high pressure pump and optionally includes a ventilation fan.
  • This motor pump unit 26 is in a cross section semicircular, bowl-shaped recess 27 in lid-shaped upper part 3 and is added by a Covered hood 28, the motor pump unit 26th encloses together with the recess 27 on all sides.
  • the Hood 28 is in turn designed as a closed container, 29 components used in its interior can be, for example, electrical and electronic Components.
  • the recess 27 and the hood 28 partially surround the motor pump unit 26 in the Distance and thereby form a flow channel, can flow through the cooling air that the motor pump unit 26 cools. This is done, for example, by a fan wheel from below through an opening in the liquid container 1 sucked in and then into the interior of a issued hood-shaped housing, which the device overlaid at the top.
  • Another fan wheel can be used in this way preheated air is sucked in and then via a flow channel 30 the boiler 31 in the form of combustion air are fed. Again, it is beneficial if parts of the blower housing and the flow channel 30 in the lid-shaped upper part 3 are molded.
  • a boiler 31 is arranged on the side member 11 rests and is carried by this.
  • the liquid container 1 surrounds the boiler 31 in Distance, so that an immediate thermal contact is avoided.

Landscapes

  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Abstract

The fluid container comprises a trough-like lower part (2) and lid-like upper part (3) connected together along their matching superposed end edges (20,21). Wheels (14,15) are fitted on the container to form together a chassis. The motor pump unit (26) is held on the outside of the container. The container can be divided into separate individual containers (8) through the internal walls (7,18) of the trough like lower part and lid part. The end edges of the upper and lower part are welded or stuck together.

Description

Die Erfindung betrifft ein Hochdruckreinigungsgerät mit einem Räder aufweisenden Fahrgestell, mit einem wannenförmigen Unterteil, mit einer Motorpumpeneinheit und mit einem Flüssigkeitsbehälter.The invention relates to a high-pressure cleaning device having a wheel Chassis, with a trough-shaped lower part, with a motor pump unit and with a liquid container.

Derartige fahrbare Hochdruckreinigungsgeräte werden üblicherweise auf einem metallischen Fahrgestell montiert, auf dem einzelne Aggregate in möglichst günstiger Anordnung befestigt werden.Such mobile high-pressure cleaning devices are usually on a metallic chassis mounted on which individual units in as possible favorable arrangement to be attached.

In der DE 38 23 320 A1 ist ein gattungsgemäßes Hochdruckreinigungsgerät beschrieben, bei dem das Fahrgestell durch ein wannenförmiges Unterteil eines Außengehäuses gebildet wird, an dem die Räder gelagert sind. Auf das wannenförmige Unterteil wird eine Abdeckhaube aufgesetzt, und dieses Aussengehäuse umgibt dann wesentlichen Aggregate des Hochdruckreinigungsgerätes einschließlich eines Flüssigkeitsbehälters, der über einen Einfüllstutzen von außen her zugänglich ist. Es sind also separate Teile für den Flüssigkeitsbehälter und für das Fahrgestell notwendig, außerdem müssen Befestigungsvorrichtungen für die Motorpumpeneinheit und gegebenenfalls weitere Aggregate im Inneren des Außengehäuses vorhanden sein.DE 38 23 320 A1 describes a high-pressure cleaning device of the generic type described in which the chassis by a trough-shaped lower part of a Outer housing is formed on which the wheels are mounted. On the a cover is placed on the trough-shaped lower part, and this outer housing then surrounds essential units of the high-pressure cleaning device including a liquid container that runs over a filler neck is accessible from the outside. So there are separate parts for the liquid container and necessary for the chassis, also need fasteners for the motor pump unit and possibly other units be present inside the outer case.

Es ist Aufgabe der Erfindung, den Aufbau eines derartigen Hochdruckreinigungsgerätes zu vereinfachen. It is an object of the invention to construct such a high-pressure cleaning device to simplify.

Diese Aufgabe wird bei einem Hochdruckreinigungsgerät der eingangs beschriebenen Art erfindungsgemäß dadurch gelöst, daß der Flüssigkeitsbehälter aus dem wannenförmigen Unterteil und einem deckelförmigen Oberteil besteht, die längs ihrer deckungsgleichen, aufeinanderliegenden Stirnkanten miteinander verbunden sind, daß an dem Flüssigkeitsbehälter die Räder gelagert sind, so daß der Flüssigkeitsbehälter und die Räder gemeinsam das Fahrgestell bilden, und daß die Motorpumpeneinheit an der Außenseite des Flüssigkeitsbehälters gehalten ist.This task is described in the case of a high-pressure cleaning device as described in the introduction Art solved according to the invention in that the liquid container consists of the trough-shaped lower part and a lid-shaped upper part, the along their congruent, superimposed front edges are interconnected that the wheels are mounted on the liquid container are so that the liquid container and the wheels together the chassis form, and that the motor pump unit on the outside of the liquid container is held.

Der Flüssigkeitsbehälter übernimmt bei dieser Konstruktion also die Funktion des Rahmens oder Fahrgestells, indem die Räder unmittelbar am Flüssigkeitsbehälter gelagert werden und indem der Flüssigkeitsbehälter auch die Lagerung für die Motorpumpeneinheit bildet. Metallische Rahmengestelle werden dadurch überflüssig. The liquid container takes on the function in this construction of the frame or chassis by placing the wheels directly on the liquid container be stored and by storing the liquid container also forms for the motor pump unit. Metallic frames become thereby unnecessary.

Flüssigkeitsbehälter für derartige Geräte sind üblicherweise relativ kompliziert ausgebildet, und daher ist die Herstellung derartiger Flüssigkeitsbehälter schwierig. Um hier trotzdem komplizierte geometrische Anordnungen zu ermöglichen, ist weiterhin vorgesehen, daß die Flüssigkeitsbehälter aus zwei Teilen bestehen, nämlich einem wannenförmigen Unterteil und einem dekkelförmigen Oberteil, wobei diese so geformt sind, daß ihre Stirnkanten deckungsgleich verlaufen. Im Bereich dieser Stirnkanten liegen Unterteil und Oberteil aneinander an und sind in diesem Bereich dicht miteinander verbunden. Dadurch wird es möglich, auch sehr komplizierte geometrische Formen der Flüssigkeitsbehälter zu realisieren, die notwendig werden, wenn der Flüssigkeitsbehälter in der beschriebenen Weise die Fahrgestellfunktion übernehmen soll.Liquid containers for such devices are common relatively complicated, and therefore is the manufacture of such liquid containers difficult. To complicated geometrical here anyway It is also envisaged to enable arrangements that the liquid containers consist of two parts, namely a trough-shaped lower part and a lid-shaped one Top, which are shaped so that their front edges are congruent. In the area the lower and upper parts of these end edges lie against each other and are close together in this area connected. This makes it possible to do even very complicated ones geometric shapes of the liquid containers too realize that will be necessary when the liquid container the chassis function in the manner described should take over.

Insbesondere ist es vorteilhaft, wenn der Flüssigkeitsbehälter durch Innenwände des wannenförmigen Unterteils und des deckelförmigen Oberteils, die ebenfalls längs ihrer deckungsgleich verlaufenden Stirnkanten miteinander verbunden sind, in voneinander getrennte Einzelbehälter unterteilt ist. Dadurch ist es möglich, daß der Flüssigkeitsbehälter die verschiedensten Flüssigkeitsvorräte nebeneinander aufnehmen kann, beispielsweise Reinigungschemikalien, Reinigungswasser, Öl und dergleichen. Gerade bei einer solchen mehrkammrigen, komplizierten geometrischen Ausgestaltung ist es von grossem Vorteil, daß ein solcher Behälter durch zwei dekkungsgleich aufeinandertreffende Teile gebildet werden kann, als einfaches Blasformteil wäre ein solcher Behälter nicht mehr herstellbar. In particular, it is advantageous if the liquid container through inner walls of the trough-shaped lower part and the lid-shaped top, which is also longitudinal their congruent end edges with each other are connected in separate containers is divided. This makes it possible for the Liquid containers the most diverse liquid stocks can record next to each other, for example Cleaning chemicals, cleaning water, oil and the like. Especially with such a multi-chamber, complicated geometrical design it is of great size Advantage that such a container by two identical covers clashing parts are formed can, as a simple blow molded part would be such a container no longer producible.

Bei einer ersten bevorzugten Ausführungsform ist vorgesehen, daß die Stirnkanten des wannenförmigen Unterteils und des deckelförmigen Oberteils durch Verschweißung miteinander verbunden sind.In a first preferred embodiment, that the front edges of the trough-shaped lower part and the lid-shaped upper part by welding are interconnected.

Dabei ist es besonders vorteilhaft, wenn die Verschweißung eine Spiegelschweißung ist. Darunter versteht man eine Schweißung, bei der die aufeinandertreffenden Stirnkanten durch Zwischenlage eines flächigen Heizelementes bis zur Erweichung erwärmt und dann nach Entfernung des flächigen Heizelementes unter Druck zusammengefügt werden. Mit dieser Technik läßt sich eine Verschweißung im Stirnkantenbereich erreichen, und zwar längs der gesamten Stimkantenberührungsfläche in gleicher Weise.It is particularly advantageous if the welding is a mirror weld. That means a weld where the colliding Front edges by the interposition of a flat Heating element heated to softening and then after Removal of the flat heating element assembled under pressure become. With this technique one can Reach welding in the front edge area, namely along the entire leading edge contact area in the same Wise.

Bei einer anderen bevorzugten Ausführungsform werden die aufeinanderliegenden Stirnkanten durch Verklebung miteinander verbunden.In another preferred embodiment the superimposed front edges by gluing connected with each other.

Obwohl es grundsätzlich möglich ist, daß ein beispielsweise aus einem geeigneten Kunststoff bestehender Flüssigkeitsbehälter unmittelbar die Laufräder und sämtliche wichtigen Aggregate des Hochdruckreinigungsgerätes trägt, kann es vorteilhaft sein, wenn zur Erhöhung der Tragfähigkeit und Stabilität des Flüssigkeitsbehälters an der Unterseite des wannenförmigen Unterteils ein flächiger Stützträger anliegt, beispielsweise eine sich zentral über die Länge des Flüssigkeitsbehälters erstreckende Platte aus Metall.Although it is possible in principle that a for example liquid container made of a suitable plastic immediately the wheels and all important units of the high-pressure cleaning device bears, it may be advantageous if to increase the Load capacity and stability of the liquid container on the underside of the trough-shaped lower part flat support beam is present, for example one itself extending centrally over the length of the liquid container Metal plate.

Insbesondere kann dieser Stützträger in einer Vertiefung des Bodens des wannenförmigen Unterteils aufgenommen sein. In particular, this support beam in a recess of the bottom of the trough-shaped lower part his.

Es ist weiterhin günstig, wenn der Träger mit dem wannenförmigen Unterteil durch Zuganker verbunden ist, beispielsweise durch Schraubbolzen, die das wannenförmige Unterteil und den Stützträger durchgreifen.It is also advantageous if the carrier with the trough-shaped Lower part is connected by tie rods, for example, by bolts that are trough-shaped Reach through the lower part and the support bracket.

Dabei ist es vorteilhaft, wenn der Zuganker in einem Bereich des wannenförmigen Unterteils dieses durchgreift, der zwischen zwei benachbarten Außenwänden des wannenförmigen Unterteils angeordnet ist. Der Zuganker endet somit nicht im Innenraum des Flüssigkeitsbehälters, sondern in einem Bereich außerhalb des Flüssigkeitsbehälters, der durch benachbarten Außenwände definiert wird.It is advantageous if the tie rod in one Area of the trough-shaped lower part, the between two adjacent outer walls of the trough-shaped lower part is arranged. The tie rod thus does not end in the interior of the liquid container, but in an area outside the liquid container, which is defined by neighboring outer walls becomes.

Bei einer weiteren bevorzugten Ausführungsform ist vorgesehen, daß der Flüssigkeitsbehälter eine Öffnung umgibt, in der ein Heizkessel angeordnet ist. Vorzugsweise geht die Öffnung vollständig durch den Flüssigkeitsbehälter hindurch, so daß der Heizkessel nicht auf dem Flüssigkeitsbehälter selbst aufruht.In a further preferred embodiment, that the liquid container surrounds an opening, in which a boiler is arranged. Preferably the opening goes completely through the liquid container through, so that the boiler is not on the Liquid container itself rests.

Es ist weiterhin vorteilhaft, wenn die Wand des Flüssigkeitsbehälters von dem Heizkessel einen Abstand einhält. Auf diese Weise ist sichergestellt, daß der Heizkessel allseitig nicht unmittelbar mit dem Flüssigkeitsbehälter in Berührung tritt, so daß hier ein Wärmekontakt vermieden wird.It is also advantageous if the wall of the liquid container keep a distance from the boiler. This ensures that the boiler not directly on all sides with the liquid container comes into contact, so that here a thermal contact is avoided.

Zur Lagerung des Heizkessels kann vorgesehen sein, daß der Kessel auf einem Träger gehalten ist, der an der Unterseite des Flüssigkeitsbehälters mit diesem verbunden ist. Dieser Träger kann aus einem Material mit schlechter Wärmeleitung bestehen, so daß auch auf diese Weise gewährleistet ist, daß vom Heizkessel nur geringe Wärmemengen auf den Flüssigkeitsbehälter übertragen werden.For storage of the boiler it can be provided that the kettle is held on a support attached to the Bottom of the liquid container connected to this is. This carrier can be made of one material poor heat conduction exist, so that this too Way is guaranteed that only a small amount of the boiler Transfer heat to the liquid container become.

Dieser Träger kann die Öffnung im Flüssigkeitsbehälter diametral überbrücken. Günstig ist es, wenn dieser Träger gleichzeitig einen Stützträger zur Stabilisierung des Unterteils bildet.This carrier can open the opening in the liquid container bridge diametrically. It is convenient if this carrier at the same time a support beam for stabilization of the lower part.

Bei einer weiteren bevorzugten Ausführungsform ist vorgesehen, daß das deckelförmige Oberteil eine wannenförmige Vertiefung zur Aufnahme der Motorpumpeneinheit aufweist. Diese Vertiefung ist schalenförmig ausgebildet und nimmt die Motorpumpeneinheit auf, die darin durch geeignete Befestigungsmittel festgelegt werden kann.In a further preferred embodiment, that the lid-shaped upper part is a trough-shaped Recess to accommodate the motor pump unit having. This depression is bowl-shaped and picks up the motor pump unit that is in it be fixed by suitable fasteners can.

Dabei ist es vorteilhaft, wenn auf das deckelförmige Oberteil eine Haube aufgesetzt ist, die die in der Vertiefung aufgenommene Motorpumpeneinheit überdeckt. Die Motorpumpeneinheit wird somit durch das deckelförmige Oberteil und durch die aufgesetzte Haube vollständig umgeben.It is advantageous if on the lid-shaped Upper part of a hood is placed, which is in the recess recorded motor pump unit covered. The Motor pump unit is thus through the lid-shaped Upper part and completely through the attached hood surround.

Gemäß einer bevorzugten Ausführungsform ist dabei vorgesehen, daß die Vertiefung in dem deckelförmigen Oberteil und die aufgesetzte Haube die Motorpumpeneinheit unter Ausbildung eines Strömungspfades für ein Kühlmedium umgeben, beispielsweise für Kühlluft. Das Oberteil des Flüssigkeitsbehälters und die aufgesetzte Haube übernehmen also zusätzlich die Aufgabe der Ausbildung eines Strömungspfades für ein Kühlmedium, so daß keine weiteren Strömungskanäle vorgesehen werden müssen. According to a preferred embodiment, that the depression in the lid-shaped upper part and the hood attached to the motor pump unit forming a flow path for a cooling medium surrounded, for example for cooling air. The top of the liquid container and the attached hood also take on the task of training a flow path for a cooling medium, so that none additional flow channels must be provided.

Es kann weiterhin vorgesehen sein, daß in dem deckelförmigen Oberteil ein Strömungskanal ausgebildet ist, in dem Luft zu einer Heizeinrichtung geführt wird. Auch in diesem Fall wird dieser Strömungskanal durch die Wände des deckelförmigen Oberteils selbst gebildet, so daß keine zusätzlichen Leitungen für die Brennerluft notwendig sind.It can also be provided that in the lid-shaped Upper part a flow channel is formed, in which air is led to a heater. Also in this case, this flow channel through the Walls of the lid-shaped upper part itself formed, see above that no additional lines for the burner air are necessary.

Dabei ist es vorteilhaft, wenn in dem deckelförmigen Oberteil Teile des Gebläsegehäuses eingeformt sind. Auch dies führt zu einer Vereinfachung des Gesamtaufbaus, da keine besonderen Gehäuseteile notwendig werden.It is advantageous if in the lid-shaped Upper part of the blower housing are molded. This also leads to a simplification of the overall structure, since no special housing parts are necessary.

Es ist dabei vorteilhaft, wenn in die Haube eine Kammer für Bauelemente integriert ist, beispielsweise kann die Haube insgesamt als Behälter für elektrische Bauelemente oder dergleichen ausgebildet sein.It is advantageous if there is a chamber in the hood is integrated for components, for example Overall hood as a container for electrical components or the like.

Bei einer bevorzugten Ausführungsform sind sowohl das wannenförmige Unterteil als auch das deckelförmige Oberteil im Bereich der Stirnkanten zumindest der aussenliegenden Wände doppelwandig ausgebildet. Dies stabilisiert die Flüssigkeitsbehälter im Bereich der Stirnkanten, außerdem kann der doppelwandige Bereich bei einer bevorzugten Ausführungsform eine umlaufende Stoßleiste bilden.In a preferred embodiment, both are tub-shaped lower part as well as the lid-shaped Upper part in the area of the front edges at least the outside Double-walled walls. This stabilizes the liquid container in the area of Front edges, in addition, the double-walled area in a preferred embodiment, a circumferential Form the bumper.

Weiterhin ist vorteilhaft, wenn im Bereich der doppelwandigen Stirnkanten nur die jeweils innenliegende Stirnkante des wannenförmigen Unterteils und des dekkelförmigen Oberteils miteinander verbunden sind. Bei der Verbindung der Stirnkanten, insbesondere durch Verschweißung, wird Schweißmaterial seitlich über die Kontur der Wände herausgedrückt, so daß im Verbindungsbereich der Stirnkanten eine größere Breite der Wände entsteht. Bei einer doppelwandigen Ausbildung, bei der nur die innenliegenden Wände in dieser Weise verschweißt sind, wird diese verbreiterte Schweißnaht durch die außenliegenden Wände abgedeckt, so daß die verbreiterte Schweißnaht von außen her nicht sichtbar ist und auch nicht beschädigt werden kann. Trotzdem ergibt sich eine vollständig dichte Ausbildung des Flüssigkeitsbehälters durch die innenliegenden, miteinander verbundenen Wände, während die außenliegenden Wände nur stumpf aufeinanderstoßen, ohne in gleicher Weise verschweißt zu sein.It is also advantageous if in the double-walled area Front edges only the inner one Front edge of the trough-shaped lower part and the lid-shaped Upper part are connected. at the connection of the front edges, in particular by welding, welding material laterally over the contour the walls pushed out so that in the connection area of the front edges a larger width of the walls arises. In the case of a double-walled training in which only the inner walls welded in this way this widened weld seam covered by the outer walls, so that the widened weld seam not visible from the outside is and cannot be damaged. Still results there is a completely sealed formation of the liquid container through the inner, with each other connected walls, while the outer walls only butt butt without being welded in the same way to be.

Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1
eine Längsschnittansicht längs Linie 1-1 in Figur 2 durch ein Hochdruckreinigungsgerät mit einem Flüssigkeitsbehälter als tragendem Bauteil;
Figur 2
eine Draufsicht auf den Flüssigkeitsbehälter des Hochdruckreinigungsgerätes gemäß Figur 1 und
Figur 3
eine Schnittansicht längs Linie 3-3 in Figur 2.
The following description of preferred embodiments of the invention serves in conjunction with the drawing for a more detailed explanation. Show it:
Figure 1
a longitudinal sectional view along line 1-1 in Figure 2 by a high pressure cleaning device with a liquid container as a supporting component;
Figure 2
a plan view of the liquid container of the high pressure cleaning device according to Figure 1 and
Figure 3
a sectional view taken along line 3-3 in Figure 2.

Das in der Zeichnung dargestellte Hochdruckreinigungsgerät umfaßt einen geschlossenen Flüssigkeitsbehälter 1 aus einem wannenförmigen Unterteil 2 und einem deckelförmigen Oberteil 3. The high-pressure cleaning device shown in the drawing comprises a closed liquid container 1 from a trough-shaped lower part 2 and a lid-shaped Top 3.

Das wannenförmige Unterteil 2 ist in einem Teilbereich ringförmig ausgebildet und umgibt mit einer Innenwand 5 eine durchgehende Öffnung 4, in dem ringförmigen Abschnitt 6 sind mehrere Querwände 7 angeordnet, die den ringförmigen Abschnitt 6 in voneinander getrennte Kammern 8 unterteilen.The trough-shaped lower part 2 is in a partial area annular and surrounds with an inner wall 5 a through opening 4, in the annular portion 6 a plurality of transverse walls 7 are arranged, which the annular section 6 in separate chambers 8 divide.

Der Boden 9 des wannenförmigen Unterteils 2 weist in seiner Mitte eine in Längsrichtung verlaufende, nutförmige Vertiefung 10 auf, in die ein metallischer Längsträger 11 eingelegt ist, der den Boden 9 verstärkt. Dieser Längsträger 11 ist durch Schraubbolzen 12 mit dem wannenförmigen Unterteil 2 verbunden. Diese Schraubbolzen 12 treten durch den Boden 9 des wannenförmigen Unterteils 2 in einem Bereich hindurch, der durch Querwände 13 von den Kammern 8 abgetrennt ist (Figur 1), d.h. diese Schraubbolzen 12 treten nicht in den Innenraum des wannenförmigen Unterteils 2 ein.The bottom 9 of the trough-shaped lower part 2 has in its center is a groove-shaped one running in the longitudinal direction Indentation 10 in which a metal side member 11 is inserted, which reinforces the bottom 9. This side member 11 is with bolts 12 connected to the trough-shaped lower part 2. This Bolts 12 pass through the bottom 9 of the trough-shaped Lower part 2 in an area that is separated from the chambers 8 by transverse walls 13 (Figure 1), i.e. these bolts 12 do not occur the interior of the trough-shaped lower part 2.

Am Boden 9 oder am Längsträger 11 sind Laufräder 14, 15 befestigt, so daß die Baueinheit aus wannenförmigem Unterteil 2 und Längsträger 11 ein Fahrgestell ausbildet.On the floor 9 or on the side member 11 there are wheels 14, 15 attached, so that the assembly of trough-shaped lower part 2 and side members 11 forms a chassis.

Dieses Fahrgestell wird vervollständigt durch das dekkelförmige Oberteil 3, das das wannenförmige Unterteil 2 auf der Oberseite verschließt. Dazu weist das Oberteil 3 Außenwände 16, Innenwände 17 sowie Querwände 18 auf, die im Bereich ihrer Stirnkanten 20 mit den Stirnkanten 21 der jeweiligen Wände des Unterteils 2 dekkungsgleich verlaufen. Beim Aufsetzen des Oberteils 3 auf das Unterteil 2 stoßen diese Stirnkanten 20 und 21 stumpf aneinander, und zwar über die gesamte Länge sämtlicher Wände. This chassis is completed by the cover-shaped Upper part 3, which is the trough-shaped lower part 2 closes on the top. The upper part points to this 3 outer walls 16, inner walls 17 and transverse walls 18 on, in the region of their front edges 20 with the front edges 21 of the respective walls of the lower part 2 with the same cover run. When putting on the upper part 3 these end edges 20 and 21 meet the lower part 2 butt together, over the entire length all walls.

In diesem Kontaktbereich sind Unterteil 2 und Oberteil 3 miteinander verbunden, beispielsweise durch eine Verschweißung oder eine Verklebung. Besonders günstig ist in diesem Zusammenhang eine sogenannte Spiegelschweissung.In this contact area are lower part 2 and upper part 3 connected to each other, for example by welding or a glue. Is particularly cheap in this context a so-called mirror welding.

Durch diese Verbindung wird der Flüssigkeitsbehälter 1 aus Unterteil 2 und Oberteil 3 bestehend so abgedichtet, daß die Kammern 8 vollständig voneinander getrennt sind und nach außen abgeschlossen.This connection makes the liquid container 1 consisting of lower part 2 and upper part 3 so sealed, that the chambers 8 completely separated from each other are completed and outward.

Das Oberteil 3 ist dabei so konturiert, daß im Bereich der Schraubbolzen 12 Durchstecköffnungen 22 im Oberteil 3 vorgesehen sind, durch die die Schraubbolzen eingeführt werden können.The upper part 3 is contoured so that in the area the bolt 12 through openings 22 in the upper part 3 are provided through which the bolts are inserted can be.

Im Bereich der Außenwände 16 des Oberteils 3 und der Außenwände 23 des Unterteils 2 sind diese in der Nähe der entsprechenden Stirnkanten 20, 21 doppelwandig ausgebildet, wobei die beiden Wandbereiche 24, 25 einen Abstand voneinander aufweisen (Figur 1). Eine Verbindung in der beschriebenen Art erfolgt nur längs der inneren Wandbereiche, die äußeren Wandbereiche liegen nur stumpf aneinander an. Diese längs des gesamten Umfanges des Flüssigkeitsbehälters 1 umlaufenden Wandbereiche 24, 25 bilden eine Stoßleiste und decken außerdem die Verbindungskante zwischen den innen liegenden Wandbereichen 24 nach außen hin ab.In the area of the outer walls 16 of the upper part 3 and Outer walls 23 of the lower part 2 are nearby the corresponding end edges 20, 21 are double-walled, the two wall areas 24, 25 one Have a distance from each other (Figure 1). A connection in the manner described is only along the inner Wall areas, the outer wall areas are only butt against each other. This along the entire circumference of the liquid container 1 surrounding wall areas 24, 25 form a bumper and also cover the Connecting edge between the inner wall areas 24 towards the outside.

Dieses aus Flüssigkeitsbehälter 1, Längsträger 11 und Laufrädern 14, 15 bestehende Fahrgestell dient als Lagerung für eine Motorpumpeneinheit 26, die in an sich bekannter Weise einen Elektromotor, eine Hochdruckpumpe und gegebenenfalls einen Lüftungsventilator umfaßt. Diese Motorpumpeneinheit 26 ist in einer im Querschnitt halbkreisförmigen, schalenförmigen Vertiefung 27 im deckelförmigen Oberteil 3 aufgenommen und wird von einer Haube 28 überdeckt, die die Motorpumpeneinheit 26 zusammen mit der Vertiefung 27 allseits umschließt. Die Haube 28 ist ihrerseits als geschlossener Behälter ausgebildet, in dessen Innenraum 29 Bauelemente eingesetzt werden können, beispielsweise elektrische und elektronische Bauelemente. Die Vertiefung 27 und die Haube 28 umgeben dabei die Motorpumpeneinheit 26 teilweise im Abstand und bilden dadurch einen Strömungskanal aus, durch den Kühlluft hindurchströmen kann, die die Motorpumpeneinheit 26 kühlt. Diese wird beispielsweise durch ein Lüfterrad von unten durch eine Öffnung im Flüssigkeitsbehälter 1 angesaugt und dann in den Innenraum eines haubenförmigen Gehäuses abgegeben, welches das Gerät an der Oberseite überfängt.This from liquid container 1, side members 11 and Wheels 14, 15 existing chassis serves as storage for a motor pump unit 26 which in itself known an electric motor, a high pressure pump and optionally includes a ventilation fan. This motor pump unit 26 is in a cross section semicircular, bowl-shaped recess 27 in lid-shaped upper part 3 and is added by a Covered hood 28, the motor pump unit 26th encloses together with the recess 27 on all sides. The Hood 28 is in turn designed as a closed container, 29 components used in its interior can be, for example, electrical and electronic Components. The recess 27 and the hood 28 partially surround the motor pump unit 26 in the Distance and thereby form a flow channel, can flow through the cooling air that the motor pump unit 26 cools. This is done, for example, by a fan wheel from below through an opening in the liquid container 1 sucked in and then into the interior of a issued hood-shaped housing, which the device overlaid at the top.

Über ein weiteres Lüfterrad kann die in dieser Weise vorgewärmte Luft angesaugt und dann über einen Strömungskanal 30 dem Heizkessel 31 in Form von Brennluft zugeführt werden. Auch hier ist es günstig, wenn Teile des Gebläsegehäuses und der Strömungskanal 30 in dem deckelförmigen Oberteil 3 eingeformt sind.Another fan wheel can be used in this way preheated air is sucked in and then via a flow channel 30 the boiler 31 in the form of combustion air are fed. Again, it is beneficial if parts of the blower housing and the flow channel 30 in the lid-shaped upper part 3 are molded.

In der vom Flüssigkeitsbehälter 1 umgebenen Öffnung 4 ist ein Heizkessel 31 angeordnet, der auf dem Längsträger 11 aufruht und von diesem getragen wird. Der Flüssigkeitsbehälter 1 umgibt dabei den Heizkessel 31 im Abstand, so daß ein unmittelbarer thermischer Kontakt vermieden wird.In the opening 4 surrounded by the liquid container 1 a boiler 31 is arranged on the side member 11 rests and is carried by this. The liquid container 1 surrounds the boiler 31 in Distance, so that an immediate thermal contact is avoided.

Claims (22)

  1. High-pressure cleaning appliance with a chassis having wheels (14, 15), with a trough-like lower part (2), with a motor-pump unit (26) and with a fluid container (1), characterised in that the fluid container (1) comprises the trough-like lower part (2) and a lid-like upper part (3) which are joined together along their congruent, superposed end edges (20, 21), in that the wheels (14, 15) are mounted on the fluid container (1), so that the fluid container (1) and the wheels (14, 15) together form the chassis, and in that the motor-pump unit (26) is held on the outside of the fluid container (1).
  2. Cleaning appliance according to Claim 1, characterised in that the fluid container (1) is subdivided into individual containers (8) separate from one another by inner walls (7, 18) of the trough-like lower part (2) and of the lid-like upper part (3) which are likewise joined together along their congruently running end edges.
  3. Cleaning appliance according to one of Claims 1 or 2, characterised in that the end edges (20, 21) of the trough-like lower part (2) and of the lid-like upper part (3) are joined together by welding.
  4. Cleaning appliance according to Claim 3, characterised in that the welding is mirror welding.
  5. Cleaning appliance according to one of Claims 1 or 2, characterised in that the end edges (20, 21) of the trough-like lower part (2) and of the lid-like upper part (3) are joined together by adhesive bonding.
  6. Cleaning appliance according to one of the preceding claims, characterised in that a flat supporting beam (11) bears against the underside (9) of the trough-like lower part (2).
  7. Cleaning appliance according to Claim 6, characterised in that the supporting beam (11) is accommodated in a recess (10) in the bottom (9) of the trough-like lower part (2).
  8. Cleaning appliance according to Claim 6 or 7, characterised in that the supporting beam (11) is connected to the trough-like lower part (2) by tie rods (12).
  9. Cleaning appliance according to Claim 8, characterised in that the tie rod (12) passes through the trough-like lower part (2) in a region thereof which is arranged between two adjacent outer walls (13) of the trough-like lower part (2).
  10. Cleaning appliance according to one of the preceding claims, characterised in that the fluid container (1) surrounds an opening (4) in which a boiler (31) is arranged.
  11. Cleaning appliance according to Claim 10, characterised in that the wall (5, 17) of the fluid container (1) is at a distance from the boiler (31).
  12. Cleaning appliance according to Claim 10 or 11, characterised in that the boiler (31) is supported on a beam (11) which is connected to it at the underside of the fluid container (1).
  13. Cleaning appliance according to Claim 12, characterised in that the beam (11) diametrically bridges the opening (4) in the fluid container (1).
  14. Cleaning appliance according to one of the preceding claims, characterised in that the lid-like upper part (3) has a trough-like recess (27) for accommodating the motor-pump unit (26).
  15. Cleaning appliance according to Claim 14, characterised in that a hood (28) which covers the motor-pump unit (26) accommodated in the recess (27) is mounted on the lid-like upper part (3).
  16. Cleaning appliance according to Claim 15, characterised in that the recess (27) in the lid-like upper part (3) and the mounted hood (28) surround the motor-pump unit (26) while forming a flow path for a cooling medium.
  17. Cleaning appliance according to one of the preceding claims, characterised in that a flow duct (30), through which combustion air is led to a heating device (31), is formed in the lid-like upper part (3).
  18. Cleaning appliance according to Claim 17, characterised in that parts of the fan housing are formed in the lid-like upper part (3).
  19. Cleaning appliance according to one of Claims 15 to 18, characterised in that a chamber (29) for components is integrated in the hood (28).
  20. Cleaning appliance according to one of the preceding claims, characterised in that the trough-like lower part (2) and the lid-like upper part (3) are of double-walled design in the region of the end edges (20, 21) of at least the outer walls (23).
  21. Cleaning appliance according to Claim 20, characterised in that the double-walled region (24, 25) forms a protective strip running all the way round.
  22. Cleaning appliance according to Claim 20 or 21, characterised in that, in the region of the double-walled end edges (24, 25), only the respective inner end edge (24) of the trough-like lower part (2) and of the lid-like upper part (3) are joined together.
EP98112343A 1997-07-10 1998-07-03 High pressure cleaning device Expired - Lifetime EP0890394B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729509A DE19729509A1 (en) 1997-07-10 1997-07-10 High pressure cleaning device
DE19729509 1997-07-10

Publications (3)

Publication Number Publication Date
EP0890394A2 EP0890394A2 (en) 1999-01-13
EP0890394A3 EP0890394A3 (en) 1999-10-13
EP0890394B1 true EP0890394B1 (en) 2003-11-05

Family

ID=7835246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98112343A Expired - Lifetime EP0890394B1 (en) 1997-07-10 1998-07-03 High pressure cleaning device

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Country Link
EP (1) EP0890394B1 (en)
AT (1) ATE253415T1 (en)
DE (2) DE19729509A1 (en)
DK (1) DK0890394T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29914193U1 (en) * 1999-08-14 1999-10-21 Alfred Kärcher GmbH & Co, 71364 Winnenden High pressure cleaning device
DE102007018249A1 (en) * 2007-04-12 2008-10-16 Alfred Kärcher Gmbh & Co. Kg Mobile high-pressure cleaning device
DE102007061403A1 (en) * 2007-12-12 2009-06-18 Alfred Kärcher Gmbh & Co. Kg cleaner
EP2488309B1 (en) * 2009-10-14 2014-06-04 Alfred Kärcher GmbH & Co. KG High-pressure cleaning device
CN102574165B (en) * 2009-10-14 2015-08-05 阿尔弗雷德·凯驰两合公司 High-pressure cleaning appliance
WO2011044939A1 (en) 2009-10-14 2011-04-21 Alfred Kärcher Gmbh & Co. Kg High-pressure cleaning device
CN114535237B (en) * 2022-02-15 2023-03-14 长春工程学院 Environmental science sewage laboratory glassware

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Publication number Priority date Publication date Assignee Title
DE2623232A1 (en) * 1975-05-28 1976-12-16 Unilever Nv Sound insulated cleaning foam generator - has compressor inside double walled cylinder with foaming agent stored between walls
US4123818A (en) * 1976-10-07 1978-11-07 Mathew Hurwitz Carpet and floor washing accessory for wet pick-up-vacuum cleaners
US4327459A (en) * 1980-04-14 1982-05-04 Metropolitan Vacuum Cleaner Co., Inc. Combined steam and vacuum cleaner
DE3823320A1 (en) * 1988-07-09 1990-01-11 Suttner Gmbh & Co Kg High-pressure cleaning arrangement
DE4138224A1 (en) * 1991-11-21 1993-05-27 Kaercher Gmbh & Co Alfred DIRTY CONTAINER FOR A VACUUM CLEANER
IT1267260B1 (en) * 1994-06-24 1997-01-28 Vetrella Spa MULTIFUNCTIONAL CLEANING APPARATUS

Also Published As

Publication number Publication date
DE59810057D1 (en) 2003-12-11
ATE253415T1 (en) 2003-11-15
DE19729509A1 (en) 1999-01-14
EP0890394A2 (en) 1999-01-13
DK0890394T3 (en) 2004-02-02
EP0890394A3 (en) 1999-10-13

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