EP2490830B1 - Cleaning device - Google Patents

Cleaning device Download PDF

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Publication number
EP2490830B1
EP2490830B1 EP10770769.7A EP10770769A EP2490830B1 EP 2490830 B1 EP2490830 B1 EP 2490830B1 EP 10770769 A EP10770769 A EP 10770769A EP 2490830 B1 EP2490830 B1 EP 2490830B1
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EP
European Patent Office
Prior art keywords
closure
maintenance
cleaning device
cleaning
accordance
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
EP10770769.7A
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German (de)
French (fr)
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EP2490830A1 (en
Inventor
Michael SCHÖNEWALD
Martin Schmidgall
Jochen Engele
Tobias Dux
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
Original Assignee
Alfred Kaercher SE and Co KG
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Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2490830A1 publication Critical patent/EP2490830A1/en
Application granted granted Critical
Publication of EP2490830B1 publication Critical patent/EP2490830B1/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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00Other cleaning aspects applicable to all B08B range
    • B08B2230/01Cleaning with steam

Definitions

  • the invention relates to a cleaning device comprising a cleaning device with a device for providing a liquid or vaporous cleaning agent, and further comprising at least one accessory for dispensing the cleaning agent to an object to be cleaned, wherein the cleaning device has a maintenance opening, which is closable by means of a maintenance closure.
  • cleaning devices For cleaning of objects, for example floors, walls, sanitary fittings or other surfaces and objects, cleaning devices are used, which provide a liquid or vapor cleaning agent. They can be configured, for example, as a high-pressure cleaning device or as a steam cleaning device. The object to be cleaned can be charged with the liquid or vaporous cleaning agent.
  • a cleaning hose can be connected to the cleaning device for dispensing the cleaning agent.
  • the cleaning device comprises at least one accessory, such as a connectable to the free end of the cleaning hose cleaning nozzle or an extension tube.
  • a maintenance opening is often arranged, which can be closed by means of a maintenance closure.
  • the maintenance lock can be released from the maintenance opening and returned to the service opening after the maintenance operation is completed get connected.
  • a special tool for example a hexagon wrench, which can be inserted into a corresponding receptacle of the maintenance closure.
  • Embodiments are also known in which a screwdriver is required to release the maintenance closure.
  • maintenance measures are usually only be carried out at relatively long intervals, and then there is the difficulty to keep ready the necessary tools for solving the maintenance closure. In many cases, the tool is misplaced by the user and is therefore not available for performing the maintenance action.
  • the maintenance lock should not be readily solved by hand, otherwise there is a risk that the maintenance lock is accidentally solved by the user.
  • a cleaning device of the type mentioned is out DE 2011 2263 U1 known.
  • Object of the present invention is to develop a cleaning device of the type mentioned in such a way that the maintenance lock for maintenance can be solved in a simpler way from the maintenance opening and connected after completion of maintenance with the maintenance opening, without a considerable risk that the maintenance lock is erroneously solved by the user.
  • a separate tool for releasing the maintenance closure can be omitted by the maintenance closure and the accessory are configured such that the accessory can serve as a tool for releasing the maintenance closure. Since the accessory can already be used during the continuous operation of the cleaning device, there is no risk that it will be laid by the user and therefore is no longer available when carrying out a maintenance measure. A special tool, such as a hex key, to solve the maintenance lock can therefore be omitted. On the other hand, it is ensured that the user must consciously take to hand the at least one accessory to solve the maintenance lock, the risk that he will accidentally solve the maintenance lock is therefore low.
  • the maintenance closure preferably includes threads for screwing the maintenance closure to the service opening.
  • the at least one accessory on the maintenance lock rotatably attachable. This allows a particularly easy handling.
  • the maintenance closure has a closure stem which can be inserted into the maintenance opening of the cleaning appliance, and a closure head which projects beyond the maintenance opening, wherein an engagement element is arranged on an upper side of the closure head facing away from the closure stem, and wherein the at least one accessory part Pipe piece includes, which is engageable with the engagement member.
  • the maintenance closure is thus accessible at its upper side for establishing a connection with the accessory, which for this purpose has a piece of pipe which can be brought into engagement with the engagement element.
  • the engagement element may for example be designed in the form of a recess into which the pipe section can be inserted.
  • the inner contour of the pipe section can be adapted to the contour of the engagement element at least in one end region.
  • At least one first positive locking element is arranged on the engaging element and if at least one second positive locking element is arranged on the tubular piece, wherein in each case a first positive locking element and a second positive locking element intermesh positively.
  • the at least one first form-fitting element can be designed, for example, in the form of a recess, and the at least one second form-fitting element can be configured in the form of a projection which can be positively inserted into the recess.
  • the first positive locking element is designed in the form of a projection which projects from the engagement element and can be inserted into a recess arranged on the pipe section in the form of a second ForniBankettis.
  • the pipe section and the engagement element have a non-circular cross-section. You can, for example, oval, rectangular or square designed.
  • the pipe section is replaced by a higher mechanical strength and allows a structurally simple way to produce a rotationally fixed connection between the pipe section and the engagement member.
  • the cleaning device can be designed, for example, in the form of a steam cleaning device.
  • the device for providing the cleaning agent is formed in such an embodiment as a steam generator, which has a heatable steam boiler, wherein the maintenance closure forms a steam boiler closure.
  • a liquid detergent such as water
  • the cleaning agent evaporates in the boiler.
  • limescale deposits on the wall of the boiler which must then be removed at intervals.
  • the user can solve the steam boiler closure and then fill a descaling agent in the boiler.
  • a special tool is not required for this purpose, the user can rather use an accessory for releasing the steam boiler closure.
  • an overpressure valve is integrated into the steam boiler closure.
  • the pressure relief valve opens if the steam pressure in the steam boiler exceeds a preset maximum value.
  • the trained as a steam boiler closure closure thus not only has the function to close the maintenance opening and release for the implementation of a maintenance measure, but the maintenance lock additionally assumes the function of a security element by the pressure relief valve is integrated into the maintenance lock.
  • the overpressure valve may be configured, for example, in the form of a check valve which releases a flow channel through the maintenance closure when a given maximum value of the steam pressure prevailing in the steam boiler is exceeded and which blocks the flow channel automatically again when the maximum value is not reached.
  • At least one accessory can be configured, for example, as an extension tube or as a cleaning nozzle. These accessories can be connected to a steam line of the steam cleaner.
  • a receptacle is arranged, in which the at least one accessory is used for storage.
  • the at least one accessory can be removed from the receptacle and after completion of the operation, the accessory can be reinserted into the receptacle.
  • FIG. 1 schematically a cleaning device according to the invention is shown, which is formed in the illustrated embodiment as a steam cleaning device 10 with a cleaning device in the form of a steam cleaner 12 and with several accessories.
  • the steam cleaner 12 comprises a steam outlet, which in FIG. 1 is covered by a flap 13.
  • the flap 13 can be pivoted and then releases a steam outlet to which a steam hose 14 can be connected by means of a plug-in device 16.
  • the steam hose 14 carries at its end facing away from the plug-in device 16, a steam discharge device in the form of a steam gun 18.
  • a first accessory is designed as a cleaning nozzle in the form of a floor nozzle 20 with a nozzle head 22 and designed as a pipe piece connecting piece 24.
  • a second accessory is configured in the form of a first extension tube 26 and a third accessory is configured in the form of a second extension tube 28.
  • the extension tubes 26 and 28 are detachably connectable to each other and can be connected to both the connecting piece 24 of the floor nozzle 20 and to the steam gun 18. Alternatively, the floor nozzle 20 can also be connected directly to the steam gun 18.
  • the steam cleaner 12 has a housing 30 with an accessory holder 32.
  • the accessory holder 32 includes a plurality of recesses 34 into which the extension tubes 26 and 28 and also the steam gun 18 can be inserted.
  • the housing 30 of the steam cleaner 12 surrounds a known and therefore only in FIG. 3 partially shown steam boiler 38, which is electrically heated and can be filled with liquid detergent, preferably with water.
  • the steam cleaner 12 comprises a storage tank 40, from which the cleaning agent can be pumped into the steam boiler 38 during operation of the steam cleaner 12.
  • the detergent is evaporated and the detergent vapor can then be dispensed through the steam outlet.
  • the boiler 38 has a vertically upwardly oriented service port 42 defining a service port 44. Via the maintenance opening 44, the interior of the steam boiler 38 is accessible for maintenance measures, in particular for filling a descaling liquid.
  • the service port 42 allows the dispensing of detergent vapor, if in the boiler 38, an impermissibly high vapor pressure is formed. This will be explained in more detail below.
  • a steam boiler 46 is used vapor-tight.
  • the steam boiler closure 46 has a closure shaft 48, which carries an external thread, not shown in the drawing, and can be screwed into the service connection 42.
  • the maintenance port 42 has for this purpose a corresponding internal thread, which is also not shown to achieve a better overview in the drawing.
  • the service port 42 is immersed in a housing opening 50 which is formed in a housing recess 42 at the top of the housing 30 of the steam cleaner 12. Between the housing opening 50 and the free end of the service port 42, a sealing element in the form of a sealing ring 54 is arranged. Above the service opening 44, a closure head 56 of the steam boiler closure 46 adjoins the closure shaft 48 in the region of the housing trough 52.
  • the closure head 56 carries on its upper side an engagement element in the form of a survey 58, which in the in FIG. 5 shown Top view is oval-shaped and on its outside two diametrically opposite, from the outside of the survey 58 radially outwardly projecting first positive locking elements in the form of two projections 60, 62nd
  • the boiler closure 46 is a known and therefore in FIG. 3 only schematically illustrated pressure relief valve 63 is integrated, which releases depending on the pressure prevailing in the steam boiler 38 steam pressure a steam boiler closure 46 by flow channel 64.
  • the flow channel 64 extends from an inlet 65 disposed on the closure stem 48 at the bottom thereof to a plurality of outlets 66 uniformly distributed below the bump 48 circumferentially over the closure head 46.
  • the steam boiler closure 46 thus also has the function, in the presence of an excessively high pressure in the boiler 38 to release the flow connection from the inlet 65 to the outlets 66, through which then the steam can escape.
  • the extension tubes 26 and 28 are as well as the connecting piece 24 and the outlet of the steam gun 18 oval in cross section corresponding to the oval shape of the elevation 58 of the closure head 56.
  • the extension tubes 26 and 28 can therefore be plugged as well as the connecting piece 24 to produce a rotationally fixed connection to the survey 58, wherein the Axialnuten 68, 70 form-fitting manner with the lateral projections 60, 62 cooperate.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Description

Die Erfindung betrifft eine Reinigungsvorrichtung umfassend ein Reinigungsgerät mit einer Einrichtung zur Bereitstellung eines flüssigen oder dampfförmigen Reinigungsmittels, und weiter umfassend mindestens ein Zubehörteil zum Ausbringen des Reinigungsmittels auf einen zu reinigenden Gegenstand, wobei das Reinigungsgerät eine Wartungsöffnung aufweist, die mittels eines Wartungsverschlusses verschließbar ist.The invention relates to a cleaning device comprising a cleaning device with a device for providing a liquid or vaporous cleaning agent, and further comprising at least one accessory for dispensing the cleaning agent to an object to be cleaned, wherein the cleaning device has a maintenance opening, which is closable by means of a maintenance closure.

Zur Reinigung von Gegenständen, zum Beispiel Fußböden, Wänden, Sanitärarmaturen oder auch sonstigen Oberflächen und Objekten, kommen Reinigungsvorrichtungen zum Einsatz, die ein flüssiges oder dampfförmiges Reinigungsmittel bereitstellen. Sie können beispielsweise als Hochdruckreinigungsvorrichtung oder auch als Dampfreinigungsvorrichtung ausgestaltet sein. Der zu reinigende Gegenstand kann mit dem flüssigen oder dampfförmigen Reinigungsmittel beaufschlagt werden. Hierzu kann an das Reinigungsgerät ein Reinigungsschlauch angeschlossen sein zum Abgeben des Reinigungsmittels. Um das Ausbringen des Reinigungsmittels zu erleichtern, umfasst die Reinigungsvorrichtung mindestens ein Zubehörteil, beispielsweise eine an das freie Ende des Reinigungsschlauchs anschließbare Reinigungsdüse oder ein Verlängerungsrohr.For cleaning of objects, for example floors, walls, sanitary fittings or other surfaces and objects, cleaning devices are used, which provide a liquid or vapor cleaning agent. They can be configured, for example, as a high-pressure cleaning device or as a steam cleaning device. The object to be cleaned can be charged with the liquid or vaporous cleaning agent. For this purpose, a cleaning hose can be connected to the cleaning device for dispensing the cleaning agent. In order to facilitate the dispensing of the cleaning agent, the cleaning device comprises at least one accessory, such as a connectable to the free end of the cleaning hose cleaning nozzle or an extension tube.

Am Reinigungsgerät ist häufig eine Wartungsöffnung angeordnet, die mittels eines Wartungsverschlusses verschlossen werden kann. Zur Durchführung von Wartungsmaßnahmen kann der Wartungsverschluss von der Wartungsöffnung gelöst und nach Abschluss der Wartungsmaßnahme wieder mit der Wartungsöffnung verbunden werden. Hierzu kommt üblicherweise ein spezielles Werkzeug zum Einsatz, beispielsweise ein Sechskantschlüssel, der in eine korrespondierende Aufnahme des Wartungsverschlusses einsetzbar ist. Es sind auch Ausgestaltungen bekannt, bei denen zum Lösen des Wartungsverschlusses ein Schraubendreher erforderlich ist. Wartungsmaßnahmen sind jedoch in aller Regel nur in größeren Zeitabständen durchzuführen, und es besteht dann die Schwierigkeit, das zum Lösen des Wartungsverschlusses erforderliche Werkzeug bereitzuhalten. In vielen Fällen wird das Werkzeug vom Benutzer verlegt und steht daher zur Durchführung der Wartungsmaßnahme nicht zur Verfügung. Andererseits soll jedoch der Wartungsverschluss auch nicht ohne Weiteres bereits von Hand gelöst werden können, da sonst die Gefahr besteht, dass der Wartungsverschluss vom Benutzer irrtümlich gelöst wird. Ein Reinigungsgerät der Eingangs genannte Art ist aus DE 2011 2263 U1 bekannt.On the cleaning device, a maintenance opening is often arranged, which can be closed by means of a maintenance closure. To perform maintenance, the maintenance lock can be released from the maintenance opening and returned to the service opening after the maintenance operation is completed get connected. For this purpose, usually a special tool is used, for example a hexagon wrench, which can be inserted into a corresponding receptacle of the maintenance closure. Embodiments are also known in which a screwdriver is required to release the maintenance closure. However, maintenance measures are usually only be carried out at relatively long intervals, and then there is the difficulty to keep ready the necessary tools for solving the maintenance closure. In many cases, the tool is misplaced by the user and is therefore not available for performing the maintenance action. On the other hand, however, the maintenance lock should not be readily solved by hand, otherwise there is a risk that the maintenance lock is accidentally solved by the user. A cleaning device of the type mentioned is out DE 2011 2263 U1 known.

Aufgabe der vorliegenden Erfindung ist es, eine Reinigungsvorrichtung der eingangs genannten Art derart weiterzubilden, dass der Wartungsverschluss für Wartungsmaßnahmen auf einfachere Weise von der Wartungsöffnung gelöst und nach Abschluss der Wartungsmaßnahmen mit der Wartungsöffnung verbunden werden kann, ohne dass ein erhebliches Risiko besteht, dass der Wartungsverschluss vom Benutzer irrtümlich gelöst wird.Object of the present invention is to develop a cleaning device of the type mentioned in such a way that the maintenance lock for maintenance can be solved in a simpler way from the maintenance opening and connected after completion of maintenance with the maintenance opening, without a considerable risk that the maintenance lock is erroneously solved by the user.

Diese Aufgabe wird bei einer Reinigungsvorrichtung der gattungsgemäßen Art erfindungsgemäß dadurch gelöst, dass der Wartungsverschluss mit Hilfe von mindestens einem Zubehörteil von der Wartungsöffnung lösbar und mit dieser verbindbar ist.This object is achieved in a cleaning device of the generic type according to the invention that the maintenance lock with the help of at least one accessory from the maintenance opening is detachable and connectable to this.

In die Erfindung fließt der Gedanke mit ein, dass ein gesondertes Werkzeug zum Lösen des Wartungsverschlusses entfallen kann, indem der Wartungsverschluss und das Zubehörteil derart ausgestaltet werden, dass das Zubehörteil als Werkzeug zum Lösen des Wartungsverschlusses dienen kann. Da das Zubehörteil bereits beim fortlaufenden Betrieb des Reinigungsgerätes zum Einsatz kommen kann, besteht keine Gefahr, dass es vom Benutzer verlegt wird und daher bei der Durchführung einer Wartungsmaßnahme nicht mehr zur Verfügung steht. Ein spezielles Werkzeug, beispielsweise ein Sechskantschlüssel, zum Lösen des Wartungsverschlusses kann daher entfallen. Andererseits ist aber sichergestellt, dass der Benutzer zum Lösen des Wartungsverschlusses bewusst das mindestens eine Zubehörteil zur Hand nehmen muss, die Gefahr, dass er den Wartungsverschluss irrtümlich löst, ist daher gering.The idea flows into the invention that a separate tool for releasing the maintenance closure can be omitted by the maintenance closure and the accessory are configured such that the accessory can serve as a tool for releasing the maintenance closure. Since the accessory can already be used during the continuous operation of the cleaning device, there is no risk that it will be laid by the user and therefore is no longer available when carrying out a maintenance measure. A special tool, such as a hex key, to solve the maintenance lock can therefore be omitted. On the other hand, it is ensured that the user must consciously take to hand the at least one accessory to solve the maintenance lock, the risk that he will accidentally solve the maintenance lock is therefore low.

Günstig ist es, wenn am Wartungsverschluss und an dem mindestens einen Zubehörteil miteinander zusammenwirkende Formschlusselemente angeordnet sind zur Herstellung einer lösbaren drehfesten Verbindung zwischen dem Wartungsverschluss und dem Zubehörteil. Das mindestens eine Zubehörteil kann somit formschlüssig mit dem Wartungsverschluss verbunden werden unter Herstellung einer drehfesten Verbindung, und mit Hilfe des Zubehörteils kann dann der Wartungsverschluss gelöst und mit der Wartungsöffnung auch wieder verbunden werden.It is advantageous if mutually cooperating interlocking elements are arranged on the maintenance closure and on the at least one accessory for producing a detachable non-rotatable connection between the maintenance closure and the accessory. The at least one accessory can thus be positively connected to the maintenance closure to produce a rotationally fixed connection, and with the help of the accessory then the maintenance lock can be solved and also reconnected to the maintenance opening.

Der Wartungsverschluss umfasst vorzugsweise ein Gewinde zum Verschrauben des Wartungsverschlusses mit der Wartungsöffnung.The maintenance closure preferably includes threads for screwing the maintenance closure to the service opening.

Günstigerweise ist das mindestens eine Zubehörteil auf den Wartungsverschluss drehfest aufsteckbar. Dies ermöglicht eine besonders einfache Handhabung.Conveniently, the at least one accessory on the maintenance lock rotatably attachable. This allows a particularly easy handling.

Bei einer vorteilhaften Ausführungsform weist der Wartungsverschluss einen Verschlussschaft auf, der in die Wartungsöffnung des Reinigungsgerätes einsetzbar ist, und einen Verschlusskopf, der die Wartungsöffnung überragt, wobei an einer dem Verschlussschaft abgewandten Oberseite des Verschlusskopfes ein Eingriffselement angeordnet ist, und wobei das mindestens eine Zubehörteil ein Rohrstück umfasst, das mit dem Eingriffselement in Eingriff bringbar ist. Der Wartungsverschluss ist somit an seiner Oberseite zugänglich zur Herstellung einer Verbindung mit dem Zubehörteil, das hierzu ein mit dem Eingriffselement in Eingriff bringbares Rohrstück aufweist.In an advantageous embodiment, the maintenance closure has a closure stem which can be inserted into the maintenance opening of the cleaning appliance, and a closure head which projects beyond the maintenance opening, wherein an engagement element is arranged on an upper side of the closure head facing away from the closure stem, and wherein the at least one accessory part Pipe piece includes, which is engageable with the engagement member. The maintenance closure is thus accessible at its upper side for establishing a connection with the accessory, which for this purpose has a piece of pipe which can be brought into engagement with the engagement element.

Das Eingriffselement kann beispielsweise in Form einer Vertiefung ausgestaltet sein, in die das Rohrstück einsetzbar ist.The engagement element may for example be designed in the form of a recess into which the pipe section can be inserted.

Als günstig hat es sich erwiesen, das Eingriffselement in Form einer Erhebung auszugestalten, auf die das Rohrstück aufsetzbar ist.As low it has proven to design the engagement element in the form of a survey to which the pipe section can be placed.

Die Innenkontur des Rohrstückes kann zumindest in einem Endbereich an die Kontur des Eingriffselementes angepasst sein.The inner contour of the pipe section can be adapted to the contour of the engagement element at least in one end region.

Von besonderem Vorteil ist es, wenn am Eingriffselement mindestens ein erstes Formschlusselement angeordnet ist und wenn am Rohrstück mindestens ein zweites Formschlusselement angeordnet ist, wobei jeweils ein erstes Formschlusselement und ein zweites Formschlusselement formschlüssig ineinandergreifen. Das mindestens eine erste Formschlusselement kann beispielsweise in Form einer Ausnehmung ausgestaltet sein, und das mindestens eine zweite Formschlusselement kann in Form eines Vorsprunges ausgestaltet sein, der in die Ausnehmung formschlüssig eingesetzt werden kann. Selbstverständlich ist auch eine Ausgestaltung möglich, bei der das erste Formschlusselement in Form eines Vorsprunges ausgestaltet ist, der vom Eingriffselement absteht und in eine am Rohrstück angeordnete Vertiefung in Form eines zweiten Fornischlusselementes eingesetzt werden kann.It is particularly advantageous if at least one first positive locking element is arranged on the engaging element and if at least one second positive locking element is arranged on the tubular piece, wherein in each case a first positive locking element and a second positive locking element intermesh positively. The at least one first form-fitting element can be designed, for example, in the form of a recess, and the at least one second form-fitting element can be configured in the form of a projection which can be positively inserted into the recess. Of course is also an embodiment possible in which the first positive locking element is designed in the form of a projection which projects from the engagement element and can be inserted into a recess arranged on the pipe section in the form of a second Fornischlusselementes.

Von besonderem Vorteil ist es, wenn das Rohrstück und das Eingriffselement einen unrunden Querschnitt aufweisen. Sie können beispielsweise oval, rechteckförmig oder auch quadratisch ausgestaltet sein. Das Rohrstück erhält dadurch eine höhere mechanische Belastbarkeit und ermöglicht auf konstruktiv einfache Weise die Herstellung einer drehfesten Verbindung zwischen dem Rohrstück und dem Eingriffselement.It is particularly advantageous if the pipe section and the engagement element have a non-circular cross-section. You can, for example, oval, rectangular or square designed. The pipe section is replaced by a higher mechanical strength and allows a structurally simple way to produce a rotationally fixed connection between the pipe section and the engagement member.

Wie bereits erwähnt, kann das Reinigungsgerät beispielsweise in Form eines Dampfreinigungsgerätes ausgestaltet sein. Die Einrichtung zur Bereitstellung des Reinigungsmittels ist bei einer derartigen Ausführungsform als Dampferzeuger ausgebildet, der einen beheizbaren Dampfkessel aufweist, wobei der Wartungsverschluss einen Dampfkesselverschluss ausbildet. In den heizbaren Dampfkessel kann ein flüssiges Reinigungsmittel, beispielsweise Wasser, eingefüllt werden, das anschließend so weit erhitzt wird, dass das Reinigungsmittel im Dampfkessel verdampft. An der Wand des Dampfkessels kann sich im Laufe der Zeit Kalk ablagern, der dann in zeitlichen Abständen entfernt werden muss. Hierzu kann der Benutzer den Dampfkesselverschluss lösen und dann ein Entkalkungsmittel in den Dampfkessel einfüllen. Ein spezielles Werkzeug ist hierzu nicht erforderlich, der Benutzer kann vielmehr ein Zubehörteil zum Lösen des Dampfkesselverschlusses heranziehen.As already mentioned, the cleaning device can be designed, for example, in the form of a steam cleaning device. The device for providing the cleaning agent is formed in such an embodiment as a steam generator, which has a heatable steam boiler, wherein the maintenance closure forms a steam boiler closure. In the heatable steam boiler, a liquid detergent, such as water, are filled, which is then heated so far that the cleaning agent evaporates in the boiler. Over time, limescale deposits on the wall of the boiler, which must then be removed at intervals. For this purpose, the user can solve the steam boiler closure and then fill a descaling agent in the boiler. A special tool is not required for this purpose, the user can rather use an accessory for releasing the steam boiler closure.

Von besonderem Vorteil ist es, wenn in den Dampfkesselverschluss ein Überdruckventil integriert ist. Das Überdruckventil öffnet, falls der Dampfdruck im Dampfkessel einen vorgegebenen Maximalwert überschreitet. Der als Dampfkesselverschluss ausgebildete Wartungsverschluss hat somit nicht nur die Funktion, die Wartungsöffnung zu verschließen und für die Durchführung einer Wartungsmaßnahme freizugeben, vielmehr übernimmt der Wartungsverschluss zusätzlich die Funktion eines Sicherheitselementes, indem das Überdruckventil in den Wartungsverschluss integriert ist. Das Überdruckventil kann beispielsweise in Form eines Rückschlagventils ausgestaltet sein, das bei Überschreiten eines vorgegebenen Maximalwertes des im Dampfkessel herrschenden Dampfdruckes einen Strömungskanal durch den Wartungsverschluss hindurch freigibt und das nach Unterschreiten des Maximalwertes den Strömungskanal selbsttätig wieder sperrt.It is particularly advantageous if an overpressure valve is integrated into the steam boiler closure. The pressure relief valve opens if the steam pressure in the steam boiler exceeds a preset maximum value. The trained as a steam boiler closure closure thus not only has the function to close the maintenance opening and release for the implementation of a maintenance measure, but the maintenance lock additionally assumes the function of a security element by the pressure relief valve is integrated into the maintenance lock. The overpressure valve may be configured, for example, in the form of a check valve which releases a flow channel through the maintenance closure when a given maximum value of the steam pressure prevailing in the steam boiler is exceeded and which blocks the flow channel automatically again when the maximum value is not reached.

Mindestens ein Zubehörteil kann beispielsweise als Verlängerungsrohr oder als Reinigungsdüse ausgestaltet sein. Diese Zubehörteile können an eine Dampfleitung des Dampfreinigungsgerätes anschließbar sein.At least one accessory can be configured, for example, as an extension tube or as a cleaning nozzle. These accessories can be connected to a steam line of the steam cleaner.

Von besonderem Vorteil im Hinblick auf eine möglichst einfache Handhabung der Reinigungsvorrichtung ist es, wenn am Gehäuse des Reinigungsgerätes eine Aufnahme angeordnet ist, in die das mindestens eine Zubehörteil zur Aufbewahrung einsetzbar ist. Bei der Inbetriebnahme des Reinigungsgerätes kann mindestens ein Zubehörteil der Aufnahme entnommen werden und nach Abschluss des Betriebes kann das Zubehörteil wieder in die Aufnahme eingesetzt werden.Of particular advantage with regard to the simplest possible handling of the cleaning device, it is when the housing of the cleaning device, a receptacle is arranged, in which the at least one accessory is used for storage. When commissioning the cleaning device, at least one accessory can be removed from the receptacle and after completion of the operation, the accessory can be reinserted into the receptacle.

Die nachfolgende Beschreibung einer bevorzugten Ausführungsform der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1:
eine perspektivische Darstellung einer erfindungsgemäßen Reinigungsvorrichtung mit einem Dampfreinigungsgerät und mit mehreren Zubehörteilen;
Figur 2:
eine vergrößerte Darstellung von Detail X aus Figur 1;
Figur 3:
eine Schnittansicht längs der Linie 3-3 in Figur 2 mit einem Wartungsverschluss und einem auf diesen aufsteckbaren Rohrstück eines Zubehörteiles;
Figur 4:
eine Unteransicht auf das Rohrstück in Figur 3 und
Figur 5:
eine Draufsicht auf den Wartungsverschluss aus Figur 3.
The following description of a preferred embodiment of the invention serves in conjunction with the drawings for further explanation. Show it:
FIG. 1:
a perspective view of a cleaning device according to the invention with a steam cleaning device and with several accessories;
FIG. 2:
an enlarged view of detail X from FIG. 1 ;
FIG. 3:
a sectional view taken along the line 3-3 in FIG. 2 with a maintenance closure and an attachable pipe section of an accessory;
FIG. 4:
a bottom view of the pipe section in FIG. 3 and
FIG. 5:
a plan view of the maintenance lock off FIG. 3 ,

In Figur 1 ist schematisch eine erfindungsgemäße Reinigungsvorrichtung dargestellt, die im dargestellten Ausführungsbeispiel als Dampfreinigungsvorrichtung 10 ausgebildet ist mit einem Reinigungsgerät in Form eines Dampfreinigers 12 und mit mehreren Zubehörteilen. Der Dampfreiniger 12 umfasst einen Dampfauslass, der in Figur 1 von einer Klappe 13 verdeckt ist. Die Klappe 13 kann verschwenkt werden und gibt dann einen Dampfauslass frei, an den ein Dampfschlauch 14 mittels einer Steckvorrichtung 16 angeschlossen werden kann. Der Dampfschlauch 14 trägt an seinem der Steckvorrichtung 16 abgewandten Ende eine Dampfabgabevorrichtung in Form einer Dampfpistole 18. Ein erstes Zubehörteil ist als Reinigungsdüse in Form einer Bodendüse 20 ausgebildet mit einem Düsenkopf 22 und einem als Rohrstück ausgestalteten Anschlussstutzen 24. Ein zweites Zubehörteil ist in Form eines ersten Verlängerungsrohres 26 ausgestaltet und ein drittes Zubehörteil ist in Form eines zweiten Verlängerungsrohres 28 ausgestaltet. Die Verlängerungsrohre 26 und 28 sind lösbar miteinander verbindbar und können sowohl an den Anschlussstutzen 24 der Bodendüse 20 als auch an die Dampfpistole 18 angeschlossen werden. Alternativ kann die Bodendüse 20 auch unmittelbar an die Dampfpistole 18 angeschlossen werden.In FIG. 1 schematically a cleaning device according to the invention is shown, which is formed in the illustrated embodiment as a steam cleaning device 10 with a cleaning device in the form of a steam cleaner 12 and with several accessories. The steam cleaner 12 comprises a steam outlet, which in FIG. 1 is covered by a flap 13. The flap 13 can be pivoted and then releases a steam outlet to which a steam hose 14 can be connected by means of a plug-in device 16. The steam hose 14 carries at its end facing away from the plug-in device 16, a steam discharge device in the form of a steam gun 18. A first accessory is designed as a cleaning nozzle in the form of a floor nozzle 20 with a nozzle head 22 and designed as a pipe piece connecting piece 24. A second accessory is configured in the form of a first extension tube 26 and a third accessory is configured in the form of a second extension tube 28. The extension tubes 26 and 28 are detachably connectable to each other and can be connected to both the connecting piece 24 of the floor nozzle 20 and to the steam gun 18. Alternatively, the floor nozzle 20 can also be connected directly to the steam gun 18.

Der Dampfreiniger 12 weist ein Gehäuse 30 auf mit einer Zubehörhalterung 32. Die Zubehörhalterung 32 umfasst mehrere Ausnehmungen 34, in die die Verlängerungsrohre 26 und 28 und auch die Dampfpistole 18 eingesetzt werden können.The steam cleaner 12 has a housing 30 with an accessory holder 32. The accessory holder 32 includes a plurality of recesses 34 into which the extension tubes 26 and 28 and also the steam gun 18 can be inserted.

Das Gehäuse 30 des Dampfreinigers 12 umgibt einen an sich bekannten und daher nur in Figur 3 teilweise dargestellten Dampfkessel 38, der elektrisch beheizbar ist und mit flüssigem Reinigungsmittel, vorzugsweise mit Wasser, befüllt werden kann. Der Dampfreiniger 12 umfasst einen Vorratstank 40, von dem aus das Reinigungsmittel während des laufenden Betriebes des Dampfreinigers 12 in den Dampfkessel 38 gepumpt werden kann. Im Dampfkessel 38 wird das Reinigungsmittel verdampft und der Reinigungsmitteldampf kann dann über den Dampfauslass ausgegeben werden. Wie bereits erwähnt, kann an den Dampfauslass mittels der Steckvorrichtung 16 der Dampfschlauch 14 angeschlossen werden, an den dann wiederum die Verlängerungsrohre 26, 28 und die Bodendüse 20 angeschlossen werden können zum Ausbringen des Reinigungsmitteldampfes auf den zu reinigenden Gegenstand, beispielsweise einen Fußboden oder eine Sanitärarmatur.The housing 30 of the steam cleaner 12 surrounds a known and therefore only in FIG. 3 partially shown steam boiler 38, which is electrically heated and can be filled with liquid detergent, preferably with water. The steam cleaner 12 comprises a storage tank 40, from which the cleaning agent can be pumped into the steam boiler 38 during operation of the steam cleaner 12. In the boiler 38, the detergent is evaporated and the detergent vapor can then be dispensed through the steam outlet. As already mentioned, can be connected to the steam outlet by means of the plug-in device 16 of the steam hose 14, to which in turn the extension tubes 26, 28 and the floor nozzle 20 can be connected for discharging the Cleaning agent vapor on the object to be cleaned, such as a floor or a sanitary fitting.

Der Dampfkessel 38 weist einen vertikal nach oben ausgerichteten Wartungsanschluss 42 auf, der eine Wartungsöffnung 44 definiert. Über die Wartungsöffnung 44 ist der Innenraum des Dampfkessels 38 für Wartungsmaßnahmen zugänglich, insbesondere zum Einfüllen einer Entkalkungsflüssigkeit. Darüber hinaus ermöglich der Wartungsanschluss 42 die Abgabe von Reinigungsmitteldampf, falls sich im Dampfkessel 38 ein unzulässig hoher Dampfdruck ausbildet. Dies wird nachstehend noch näher erläutert.The boiler 38 has a vertically upwardly oriented service port 42 defining a service port 44. Via the maintenance opening 44, the interior of the steam boiler 38 is accessible for maintenance measures, in particular for filling a descaling liquid. In addition, the service port 42 allows the dispensing of detergent vapor, if in the boiler 38, an impermissibly high vapor pressure is formed. This will be explained in more detail below.

In den Wartungsanschluss 42 ist ein Dampfkesselverschluss 46 dampfdicht eingesetzt. Der Dampfkesselverschluss 46 weist einen Verschlussschaft 48 auf, der ein in der Zeichnung nicht dargestelltes Außengewinde trägt und in den Wartungsanschluss 42 eingeschraubt werden kann. Der Wartungsanschluss 42 weist hierzu ein korrespondierendes Innengewinde auf, das zur Erzielung einer besseren Übersicht in der Zeichnung ebenfalls nicht dargestellt ist.In the service port 42, a steam boiler 46 is used vapor-tight. The steam boiler closure 46 has a closure shaft 48, which carries an external thread, not shown in the drawing, and can be screwed into the service connection 42. The maintenance port 42 has for this purpose a corresponding internal thread, which is also not shown to achieve a better overview in the drawing.

Der Wartungsanschluss 42 taucht in eine Gehäuseöffnung 50 ein, die in einer Gehäusemulde 42 an der Oberseite des Gehäuses 30 des Dampfreinigers 12 ausgebildet ist. Zwischen der Gehäuseöffnung 50 und dem freien Ende des Wartungsanschlusses 42 ist ein Dichtelement in Form eines Dichtringes 54 angeordnet. Oberhalb der Wartungsöffnung 44 schließt sich im Bereich der Gehäusemulde 52 an den Verschlussschaft 48 ein Verschlusskopf 56 des Dampfkesselverschlusses 46 an. Der Verschlusskopf 56 trägt an seiner Oberseite ein Eingriffselement in Form einer Erhebung 58, die in der in Figur 5 dargestellten Draufsicht ovalförmig ausgebildet ist und an ihrer Außenseite zwei einander diametral gegenüberliegende, von der Außenseite der Erhebung 58 radial nach außen abstehende erste Formschlusselemente trägt in Form zweier Vorsprünge 60, 62.The service port 42 is immersed in a housing opening 50 which is formed in a housing recess 42 at the top of the housing 30 of the steam cleaner 12. Between the housing opening 50 and the free end of the service port 42, a sealing element in the form of a sealing ring 54 is arranged. Above the service opening 44, a closure head 56 of the steam boiler closure 46 adjoins the closure shaft 48 in the region of the housing trough 52. The closure head 56 carries on its upper side an engagement element in the form of a survey 58, which in the in FIG. 5 shown Top view is oval-shaped and on its outside two diametrically opposite, from the outside of the survey 58 radially outwardly projecting first positive locking elements in the form of two projections 60, 62nd

In den Dampfkesselverschluss 46 ist ein an sich bekanntes und daher in Figur 3 nur schematisch dargestelltes Überdruckventil 63 integriert, das in Abhängigkeit von dem im Dampfkessel 38 herrschenden Dampfdruck einen den Dampfkesselverschluss 46 durchgreifenden Strömungskanal 64 freigibt. Der Strömungskanal 64 erstreckt sich von einem am Verschlussschaft 48 an dessen Unterseite angeordneten Einlass 65 bis zu mehreren, unterhalb der Erhebung 48 in Umfangsrichtung über den Verschlusskopf 46 gleichmäßig verteilt angeordneten Auslässen 66. Zusätzlich zu seiner Funktion, die Wartungsöffnung 44 zu verschließen und bei Bedarf freizugeben, hat der Dampfkesselverschluss 46 somit auch die Funktion, bei Vorliegen eines unzulässig hohen Überdruckes im Dampfkessel 38 die Strömungsverbindung vom Einlass 65 zu den Auslässen 66 freizugeben, über die dann der Dampf austreten kann.In the boiler closure 46 is a known and therefore in FIG. 3 only schematically illustrated pressure relief valve 63 is integrated, which releases depending on the pressure prevailing in the steam boiler 38 steam pressure a steam boiler closure 46 by flow channel 64. The flow channel 64 extends from an inlet 65 disposed on the closure stem 48 at the bottom thereof to a plurality of outlets 66 uniformly distributed below the bump 48 circumferentially over the closure head 46. In addition to its function of closing the maintenance port 44 and releasing it as needed , The steam boiler closure 46 thus also has the function, in the presence of an excessively high pressure in the boiler 38 to release the flow connection from the inlet 65 to the outlets 66, through which then the steam can escape.

Die Verlängerungsrohre 26 und 28 sind ebenso wie der Anschlussstutzen 24 und der Auslass der Dampfpistole 18 im Querschnitt ovalförmig ausgebildet entsprechend der Ovalform der Erhebung 58 des Verschlusskopfes 56. An einem Ende tragen die Verlängerungsrohre 26 und 28 ebenso wie der Anschlussstutzen 18 innenseitig zwei einander diametral gegenüberliegende zweite Formschlusselemente in Form zweier Axialnuten 68, 70, deren Form an die Form der Vorsprünge 60, 62 angepasst ist. Die Verlängerungsrohre 26 und 28 können daher ebenso wie der Anschlussstutzen 24 unter Herstellung einer drehfesten Verbindung auf die Erhebung 58 aufgesteckt werden, wobei die Axialnuten 68, 70 formschlüssig mit den seitlichen Vorsprüngen 60, 62 zusammenwirken. Dies gibt die Möglichkeit, den Dampfkesselverschluss 46 wahlweise mit Hilfe des ersten Verlängerungsrohres 26, des zweiten Verlängerungsrohres 28 oder auch des Anschlussstutzens 24 der Bodendüse 20 aus dem Wartungsanschluss 42 herauszuschrauben bzw. in den Wartungsanschluss 42 einzuschrauben. Die Wartungsöffnung 44 kann somit vom Benutzer mittels des Dampfkesselverschlusses 46 verschlossen und bei Bedarf freigegeben werden, ohne dass er hierzu ein zusätzliches Werkzeug benötigt. Vielmehr kann der Dampfkesselverschluss 46 mittels eines Zubehörteils, beispielsweise mittels des ersten Verlängerungsrohres 26, so weit in den Wartungsanschluss 42 eingeschraubt werden, dass die Wartungsöffnung 44 vom Dampfkesselverschluss 46 dicht verschlossen ist, und bei Bedarf kann der Dampfkesselverschluss 46 mittels des Zubehörteils, beispielsweise mittels des ersten Verlängerungsrohres 26, aus dem Wartungsanschluss 42 auch wieder herausgeschraubt werden. Wartungsmaßnahmen, bei denen der Wartungsanschluss 42 geöffnet und später wieder geschlossen werden muss, gestalten sich somit sehr einfach. Andererseits ist aber nicht zu befürchten, dass der Benutzer den Dampfkesselverschluss 46 irrtümlich löst, da er hierzu eines der Zubehörteile 20, 26 oder 28 verwenden muss. Diese Verwendung wird vom Benutzer nicht unbeabsichtigt vorgenommen.The extension tubes 26 and 28 are as well as the connecting piece 24 and the outlet of the steam gun 18 oval in cross section corresponding to the oval shape of the elevation 58 of the closure head 56. At one end of the extension tubes 26 and 28 as well as the connecting piece 18 inside two diametrically opposed second positive locking elements in the form of two axial grooves 68, 70, whose shape is adapted to the shape of the projections 60, 62. The extension tubes 26 and 28 can therefore be plugged as well as the connecting piece 24 to produce a rotationally fixed connection to the survey 58, wherein the Axialnuten 68, 70 form-fitting manner with the lateral projections 60, 62 cooperate. This makes it possible to unscrew the steam boiler closure 46 either with the aid of the first extension tube 26, the second extension tube 28 or the connecting piece 24 of the floor nozzle 20 from the service port 42 or screw it into the service port 42. The maintenance opening 44 can thus be closed by the user by means of the steam boiler closure 46 and released as needed without requiring an additional tool for this purpose. Rather, the steam boiler closure 46 can be screwed into the service port 42 by means of an accessory, for example by means of the first extension tube 26, so far that the service opening 44 is tightly closed by the steam boiler closure 46, and if necessary the steam boiler closure 46 can be closed by means of the accessory, for example by means of the first extension tube 26, are unscrewed from the service port 42 again. Maintenance measures in which the maintenance connection 42 has to be opened and later closed again are therefore very simple. On the other hand, it is not to be feared that the user accidentally releases the steam boiler closure 46, since he must use one of the accessories 20, 26 or 28 for this purpose. This use is not unintentionally made by the user.

Claims (10)

  1. Cleaning device comprising a cleaning appliance with an apparatus for providing a cleaning agent in liquid or vapour form, and further comprising at least one accessory part for bringing the cleaning agent out onto an object to be cleaned, the cleaning appliance comprising a maintenance opening which is closable by a maintenance closure, characterized in that the maintenance closure (46) is releasable from the maintenance opening (44) and connectable thereto by means of at least one accessory part (20, 26, 28).
  2. Cleaning device in accordance with claim 1, characterized in that positive-locking elements (60, 62, 68, 70) which interact with one another are arranged on the maintenance closure (46) and on the at least one accessory part (20, 26, 28) for establishing a releasable, rotationally fixed connection between the maintenance closure (46) and the at least one accessory part (20, 26, 28).
  3. Cleaning device in accordance with claim 1 or 2, characterized in that the at least one accessory part (20, 26, 28) can be fitted in a rotationally fixed manner on the maintenance closure (46).
  4. Cleaning device in accordance with any one of the preceding claims, characterized in that the maintenance closure (46) comprises a closure shaft (48) which is insertable into the maintenance opening (44) and a closure head (56) which projects above the maintenance opening (44), an engagement element (58) being arranged on an upper side of the closure head (56) which is oriented away from the closure shaft (48), and the at least one accessory part (20, 26, 28) having a tubular piece which can be brought into engagement with the engagement element (58).
  5. Cleaning device in accordance with claim 4, characterized in that the engagement element is in the form of an elevation (58) on which the tubular piece can be positioned.
  6. Cleaning device in accordance with claim 4 or 5, characterized in that at least one first positive-locking element (60, 62) is arranged on the engagement element (58), and in that at least one second positive-locking element (68, 70) is arranged on the tubular piece, with a first positive-locking element (60, 62) and a second positive-locking element (68, 70) respectively engaging in each other in a positively locking manner.
  7. Cleaning device in accordance with claim 4, 5 or 6, characterized in that the tubular piece and the engagement element (58) have a non-circular cross section.
  8. Cleaning device in accordance with any one of the preceding claims, characterized in that the cleaning appliance is in the form of a steam cleaning appliance (12), the apparatus for providing the cleaning agent being formed as a steam generator with a heatable steam boiler (38), and the maintenance closure forming a steam boiler closure (46).
  9. Cleaning device in accordance with claim 8, characterized in that a pressure-relief valve (63) is integrated in the steam boiler closure (46).
  10. Cleaning device in accordance with claim 8 or 9, characterized in that at least one accessory part is in the form of an extension tube (26, 28) or a cleaning nozzle (20).
EP10770769.7A 2009-10-20 2010-10-12 Cleaning device Not-in-force EP2490830B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009051587A DE102009051587A1 (en) 2009-10-20 2009-10-20 cleaning device
PCT/EP2010/065262 WO2011047988A1 (en) 2009-10-20 2010-10-12 Cleaning device

Publications (2)

Publication Number Publication Date
EP2490830A1 EP2490830A1 (en) 2012-08-29
EP2490830B1 true EP2490830B1 (en) 2013-12-11

Family

ID=43479085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10770769.7A Not-in-force EP2490830B1 (en) 2009-10-20 2010-10-12 Cleaning device

Country Status (4)

Country Link
EP (1) EP2490830B1 (en)
DE (1) DE102009051587A1 (en)
ES (1) ES2444291T3 (en)
WO (1) WO2011047988A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9731330B1 (en) 2015-06-12 2017-08-15 Crossford International, Llc Portable cooling tower cleaning system
US10030216B2 (en) 2015-06-12 2018-07-24 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel
US9404069B1 (en) 2015-06-12 2016-08-02 Crossford International, Llc Systems and methods for cooling tower fill cleaning with a chemical gel

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19737490A1 (en) * 1997-08-28 1999-03-04 Gardena Kress & Kastner Gmbh Method for operating a high pressure device, in particular a high pressure cleaner and high pressure device
DE19816619A1 (en) * 1998-04-15 1999-10-21 Frank Michael Kuhn Opening and closing tool incorporated in bottom of container
US6098497A (en) * 1999-02-18 2000-08-08 Larose; Chantale Bottle opening device
GB2377365A (en) * 2001-07-10 2003-01-15 Lambert Wu Vapour cleaner, especially steam cleaner, with valve means for vapour release
US20030024574A1 (en) * 2001-08-06 2003-02-06 Samson Tsen Safety valve for steam cleaner
US7487651B2 (en) * 2005-01-21 2009-02-10 Euro-Pro Operating, Llc Steamer with wrapped cord and hose
DE102007018249A1 (en) * 2007-04-12 2008-10-16 Alfred Kärcher Gmbh & Co. Kg Mobile high-pressure cleaning device

Also Published As

Publication number Publication date
DE102009051587A1 (en) 2011-04-21
EP2490830A1 (en) 2012-08-29
WO2011047988A1 (en) 2011-04-28
ES2444291T3 (en) 2014-02-24

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