EP0904845B1 - Cut-off gun for a high pressure cleaning device with antirotation device for the high pressure hose - Google Patents

Cut-off gun for a high pressure cleaning device with antirotation device for the high pressure hose Download PDF

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Publication number
EP0904845B1
EP0904845B1 EP98118237A EP98118237A EP0904845B1 EP 0904845 B1 EP0904845 B1 EP 0904845B1 EP 98118237 A EP98118237 A EP 98118237A EP 98118237 A EP98118237 A EP 98118237A EP 0904845 B1 EP0904845 B1 EP 0904845B1
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EP
European Patent Office
Prior art keywords
high pressure
gun
sleeve
press
hand cut
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EP98118237A
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German (de)
French (fr)
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EP0904845A2 (en
EP0904845A3 (en
Inventor
Arthur Dipl.-Ing.(Fh) Rau
Bernd Winkler
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WAP Reinigungssysteme GmbH and Co
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WAP Reinigungssysteme GmbH and Co
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Publication of EP0904845A3 publication Critical patent/EP0904845A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material

Definitions

  • the present invention involves a manual shut-off gun Anti twist device for a high pressure hose.
  • EP 0 421 194 A2, US go from the prior art 4,709,859 A and DE 396 12 977 U, the shut-off pistols for Show high pressure cleaner.
  • DE 396 12 977 U shows a hand-held spray gun for a high-pressure cleaning device in which a pipe and other anti-rotation means Anti-rotation is shown inside the housing.
  • the US 4,709,859 A shows a high pressure washing device with spray gun, which also already shows an anti-rotation device arranged in a housing.
  • EP 0 421 194 A2 (cf. preamble of claim 1) now includes a spray gun for this purpose High-pressure cleaning device with an anti-twist device that indicates the Arrange anti-twist device in the housing of the manual shut-off gun.
  • the problem of friction between is not solved the high pressure hose and the necessary kink protection. Because of the constant twist the high pressure hose inside the tight around the high pressure hose arranged kink protection creates a permanent friction between them both components, which in the long run causes corresponding damage occur, which on the one hand represent undesirable wear effects and on the other hand can also endanger the operating personnel.
  • the present invention is therefore based on the object, one in the housing an anti-twist device integrated in a spray gun for high-pressure cleaning devices for the high pressure hose so that they are essential during operation is more reliable than the current state of technology shows.
  • the anti-twist device is arranged in the housing is. It is preferably integrated in the valve body.
  • the kink protection sleeve which is usually on such Manual shut-off guns are provided, themselves part of the anti-twist device.
  • the anti-twist device is not in the housing shells of the manual shut-off gun is arranged, but separately of which in the kink protection sleeve, but part of the housing of the manual shut-off gun is, but is arranged outside the housing shells.
  • Another advantage of the invention is that it is standard High pressure hoses can be used in an associated Press sleeve are taken, the anti-twisting device in the valve body itself is integrated.
  • valve device is then immediately above the twisting device (press-in nipple) the manual shut-off gun arranged what with a particularly crowded Space structure and the use of fewer construction parts.
  • twisting device press-in nipple
  • anti-twisting devices inexpensively with few means can be integrated directly into the valve body of the manual shut-off gun.
  • the press-in nipple has a slight axial play in the receiving bore of the valve housing to allow easy rotation of the parts mentioned guarantee. It is preferred if at the lower end of the Press-in nipple a mechanical ring made of a plastic material, in particular Teflon, which is the friction between the press-in nipple and the associated mounting nut reduced.
  • the figure shows a cross section through a manual shut-off gun shown according to the invention.
  • the manual shut-off gun essentially consists of two mirror-symmetrical housing shells 5 arranged with respect to one another, only the one housing shell 5 is shown, while the other housing shell is accurate is the same.
  • the two housing shells 5 define one in itself closed housing, which consists essentially of a rear wall 7, from a Front wall 6, consists of a bottom wall 8 and an end wall 9.
  • a kink protection sleeve 2 is arranged, which Kink protection device has.
  • This kink protection device consists in essentially from a lower, tulip-shaped opening to the outside Receiving opening 3, into which the HD hose 4 is inserted, which by means of a Press sleeve 20 is held sealingly on a neck of a press-in nipple 18.
  • a mounting nut 19 is fixed, the with an associated pin 40 locked against rotation in the kink protection sleeve is.
  • the advantage here is that the press-in nipple 18 with appropriate Sealants on the one hand on the fastening nut 19 and on the other the valve body 36 seals and at the same time to the parts mentioned is rotatable, so that the high pressure hose 4 is rotatable in the Manual shut-off gun 1 is held. Between the press-in nipple 18 and the Fastening nut 1ß a sliding ring 39 is used.
  • the press-in nipple 18 opens via a shoulder into a bushing 17, which as separate nut part is screwed into the valve body 36.
  • This socket 17th forms the lower part of the valve assembly because the bushing has a compression spring 16 records, the other end of which is supported on a valve ball 11, which in turn in a valve seat 12 is held.
  • a valve lifter 13 presses on the ball is sealingly guided in the valve body 36 in a bore and its upper free End is guided by a guide bush 14 which has a corresponding Gland and O-rings. In this way it is avoided that the High pressure medium from this guide channel of the valve lifter 13 to the outside penetrates.
  • the Actuating lever 15 of the manual shut-off gun 1 consists of one two-part lever, the one lever is relatively long and as Hand rest 38 is executed.
  • This operating lever as a two-armed lever is in the pivot bearing is pivotally mounted, and the other lever part is from the previously mentioned power lever 37 formed.
  • This power lever 37 thus works with his Metal insert on the upper end of the valve lifter 13, which is thus in the axial Is displaceable in the direction and thus the valve ball 11 from its valve seat 12 takes off. This releases the high pressure channel and the high pressure medium flows from the interior of the HP hose over the now open valve seat 12 in the HD channel 30 downstream, the total designated 10 Shutoff.
  • the Connection between the fastening nut 19 and the anti-kink sleeve 2 released that can be easily removed afterwards, and after that the Seal 41 in the press-in nipple 18 can be easily replaced. Furthermore, the Anti-kink sleeve 2 a toothing 42 at its upper end, which as Helical internal toothing is formed. This toothing 42 engages Slider 43, which has an operating button 44, which is fixed to a Sliding part 45 is connected, which sliding part has a latch 46, which in Engagement with the toothing 42 can be brought.
  • the slider 43 is spring-loaded in a recess 48 in by means of a spring 47 the housing shell 5 of the manual shut-off gun 1, so that the Actuating button 44 is held spring-loaded in its downward position becomes. It is in the area of a recess 49 in the space between the housing shells 5 slidably held.
  • the sliding part 45 is in the shift position shown in the figure with its locking lug 46 in engagement with the toothing 42 so that the Anti-kink sleeve 2 rotatably with the housing shells 5 of the manual shut-off gun 1 is coupled.
  • rotation lock is important in the event that a user unintentionally twisted the entire arrangement, with the risk that the High pressure hose from a screw connection on the manual shut-off gun is turned out. If this high pressure hose is then under High pressure medium, it can cause serious damage and injuries to lead. This is avoided by said rotation lock, which is only arbitrary can be triggered by actuating an actuating button 44.

Landscapes

  • Cleaning In General (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)

Abstract

The device has an anti-twisting unit for a high pressure hose. The unit is positioned in the gun housing, and is esp. integrated in a valve body (36) of the gun. The unit is esp. an anti-buckling sleeve (2), and is lockable. The sleeve has a toothing (42) and a manually actuated slide (43) engages into the toothing. The unit also has a press-in nipple (18) and a press sleeve (20), connected to the sleeve via a nut (19) and a tangential peg (40).

Description

Die vorliegende Erfindung geht hierbei von einer Handabschaltpistole mit Antiverdreheinrichtung für einen Hochdruckschlauch aus.The present invention involves a manual shut-off gun Anti twist device for a high pressure hose.

Lange Zeit war es lediglich bekannt ist, eine derartige Antiverdreheinrichtung außerhalb der Handabschaltpistole anzuordnen. Hierzu bedarf es getrennter Nippeleinrichtungen, wobei im Bereich von zwei zueinander zugeordneten Hochdruckverschraubungen eine Verdreheinrichtung in der Weise angeordnet ist, daß Schlauchverdrillungen von dieser Verdreheinrichtung aufgenommen werden, die sich in sich verdreht und damit diese Verdrehung nicht auf die Handabschaltpistole weiterleitet. Bei der Abwicklung eines Hochdruckschlauches von einer Kabeltrommel oder bei der Betätigung der Hochdruckspritzeinrichtung insgesamt, kann es oft vorkommen, daß der Hochdruckschlauch mehrfach in sich verdrillt ist und diese Verdrillungen sollen auf keinen Fall auf die Handabschaltpistole weitergeleitet werden. Zu diesem Zweck sind die vorher genannten Antiverdreheinrichtungen entwickelt worden, die jedoch nur außerhalb der Handabschaltpistole angeordnet wurden und die entsprechenden Raum beanspruchen, bei der Betätigung der Handabschaltpistole hinderlich sind und die im übrigen noch zusätzliche Undichtheiten bilden können, die - im Falle der Undichtheit - zu einer schweren Benetzung der Bedienungsperson führen.For a long time it was only known that such an anti-twist device to be arranged outside the manual shut-off gun. This requires separate Nipple devices, being in the range of two assigned to each other High-pressure fittings a rotating device is arranged in such a way that hose twists are absorbed by this twisting device, the twists in itself and thus this twisting does not affect the manual shut-off gun forwards. When unwinding a high-pressure hose from a cable drum or when operating the high pressure sprayer as a whole, it can often happen that the high pressure hose is twisted several times and this Under no circumstances should twists be passed on to the manual shut-off gun become. For this purpose the anti-twist devices mentioned above are have been developed, but arranged only outside the manual shut-off gun were and occupy the appropriate space when operating the Manual shut-off pistol are a hindrance and the rest are additional Leaks can form, which - in the case of a leak - to a serious Lead wetting of the operator.

Aus dem Stande der Technik gehen nun dazu die EP 0 421 194 A2, die US 4,709,859 A und die DE 396 12 977 U hervor, die Abschaltpistolen für Hochdruckreiniger zeigen.For this purpose, EP 0 421 194 A2, US, go from the prior art 4,709,859 A and DE 396 12 977 U, the shut-off pistols for Show high pressure cleaner.

Die DE 396 12 977 U zeigt eine Handspritzpistole für ein Hochdruckreinigungsgerät in welcher mittels eines Rohres und weiterer Drehsicherungsmittel eine Verdrehsicherung innerhalb des Gehäuses gezeigt wird. DE 396 12 977 U shows a hand-held spray gun for a high-pressure cleaning device in which a pipe and other anti-rotation means Anti-rotation is shown inside the housing.

Die US 4,709,859 A zeigt eine Hochdruckwaschvorrichtung mit Spritzpistole, welche ebenfalls bereits eine Verdrehsicherung in einem Gehäuse angeordnet zeigt.The US 4,709,859 A shows a high pressure washing device with spray gun, which also already shows an anti-rotation device arranged in a housing.

Aus der EP 0 421 194 A2 (vgl. Oberbegriff des Anspruchs1) geht nun dazu eine Spritzpistole für ein Hochdruckreinigungsgerät mit einer Antiverdreheinrichtung hervor, die angibt die Antiverdreheinrichtung im Gehäuse der Handabschaltpistole anzuordnen. Dies stellt bereits einen verbesserten Stand der Technik dar, als die außen angeordneten Verdrehsicherungen. Nicht gelöst wird jedoch das Problem der Reibung zwischen dem Hochdruckschlauch und dem erforderlichen Knickschutz. Durch das ständige verdrehen des Hochdruckschlauches innerhalb des eng um den Hochdruckschlauch angeordneten Knickschutzes entsteht eine permanente Reibung zwischen diesen beiden Bauteilen, wodurch auf Dauer gesehen entsprechende Beschädigungen auftreten, die einerseits unerwünschte Verschleißeffekte darstellen und andererseits auch das Bedienpersonal gefährden können.EP 0 421 194 A2 (cf. preamble of claim 1) now includes a spray gun for this purpose High-pressure cleaning device with an anti-twist device that indicates the Arrange anti-twist device in the housing of the manual shut-off gun. This poses already represents an improved state of the art than those arranged on the outside Anti-rotation devices. However, the problem of friction between is not solved the high pressure hose and the necessary kink protection. Because of the constant twist the high pressure hose inside the tight around the high pressure hose arranged kink protection creates a permanent friction between them both components, which in the long run causes corresponding damage occur, which on the one hand represent undesirable wear effects and on the other hand can also endanger the operating personnel.

Der vorliegenden Erfindung liegt deshalb die Aufgabe zugrunde, eine im Gehäuse einer Spritzpistole für Hochdruckreinigungsgeräte integrierte Antiverdreheinrichtung für den Hochdruckschlauch so weiterzubilden, dass diese im Betrieb wesentlich betriebssicherer ist als es der bisherige Stand der Technik zeigt.The present invention is therefore based on the object, one in the housing an anti-twist device integrated in a spray gun for high-pressure cleaning devices for the high pressure hose so that they are essential during operation is more reliable than the current state of technology shows.

Erfindungsgemäss wird diese Aufgabe durch die technische Lehre des Anspruchs 1 gelöst.According to the invention, this object is achieved by the technical teaching of claim 1 solved.

Wesentlich hierbei ist, daß die Antiverdreheinrichtung in dem Gehäuse angeordnet ist. Sie ist bevorzugt in den Ventilkörper integriert. In einer derzeit bevorzugten Ausführungsform ist die Knickschutzhülse, die üblicherweise an derartigen Handabschaltpistolen vorgesehen ist, selbst Bestandteil der Antiverdreheinrichtung.It is essential here that the anti-twist device is arranged in the housing is. It is preferably integrated in the valve body. In a currently preferred Embodiment is the kink protection sleeve, which is usually on such Manual shut-off guns are provided, themselves part of the anti-twist device.

Damit ergibt sich also der wesentliche Vorteil, daß die Antiverdreheinrichtung nicht in den Gehäuseschalen der Handabschaltpistole angeordnet ist, sondern getrennt davon in der Knickschutzhülse, die aber Teil des Gehäuses der Handabschaltpistole ist, aber außerhalb der Gehäuseschalen angeordnet ist. This gives the main advantage that the anti-twist device is not in the housing shells of the manual shut-off gun is arranged, but separately of which in the kink protection sleeve, but part of the housing of the manual shut-off gun is, but is arranged outside the housing shells.

Damit ergibt sich eine leichte Zugänglichkeit der Antiverdreheinrichtung, weil lediglich der Hochdruckschlauch aus der Knickschutzhülse entfernt werden muß, um sofort danach die Antiverdreheinrichtung zugänglich zu machen.This results in easy access to the anti-twist device, because only the high pressure hose must be removed from the kink protection sleeve immediately then make the anti-twist device accessible.

Ein weiterer Vorteil der Erfindung ist, daß standardmäßig vorhandende Hochdruckschläuche verwendet werden können, die in einer zugeordneten Preßhülse gefaßt sind, wobei die Antiverdreheinrichtung in dem Ventilkörper selbst integriert ist.Another advantage of the invention is that it is standard High pressure hoses can be used in an associated Press sleeve are taken, the anti-twisting device in the valve body itself is integrated.

Sie besteht im wesentlichen darin, daß ein Einpreßnippel drehbar in dem Ventilkörper und abgedichtet gelagert ist, welcher Einpreßnippel fest mit dem Hochdruckschlauch und der zugeordneten Preßhülse verbunden ist, und die genannten drei Teile drehbar im Ventilgehäuse gelagert sind und über die Knichschutzhülse mit Befestigungsmutter gehalten sind.It consists essentially in that a press-in nipple rotatable in the Valve body and sealed is mounted, which press nipple firmly with the High pressure hose and the associated ferrule is connected, and the mentioned three parts are rotatably mounted in the valve housing and on the Knee protection sleeve are held with a fastening nut.

Oberhalb der Verdreheinrichtung (Einpreßnippel) ist dann sofort die Ventileinrichtung der Handabschaltpistole angeordnet, was mit einem besonders gedrängten Raumaufbau und mit der Verwendung weniger Konstruktionsteile einhergeht. Damit können mit wenigen Mitteln kostengünstig derartige Antiverdreheinrichtungen unmittelbar in dem Ventilkörper der Handabschaltpistole integriert werden.The valve device is then immediately above the twisting device (press-in nipple) the manual shut-off gun arranged what with a particularly crowded Space structure and the use of fewer construction parts. In order to can such anti-twisting devices inexpensively with few means can be integrated directly into the valve body of the manual shut-off gun.

Von besonderem Vorteil ist, daß eine Befestigungsmutter vorhanden ist, die auf dem Ventilgehäuse mit einem Gewinde aufgeschraubt ist und welche den drehbaren Einpreßnippel im Ventilgehäuse drehbar hält, damit die drei Teile, nämlich Einpreßnippel, Hochdruckschlauch und Preßhülse leicht drehen können.It is particularly advantageous that there is a fastening nut on the Valve housing is screwed on with a thread and which the rotatable Press-fit nipple in the valve housing rotates so that the three parts, namely Easy to turn press-in nipple, high-pressure hose and press sleeve.

Der Einpreßnippel hat hierbei ein geringes axiales Spiel in der Aufnahmebohrung des Ventilgehäuses, um eine leichte Drehbarkeit der genannten Teile zu gewährleisten. Hierbei wird es bevorzugt, wenn am unteren stirnseitigen Ende des Einpreßnippels ein Gleitringring aus einem Kunststoffmaterial, insbesondere aus Teflon, angeordnet ist, der die Reibung zwischen dem Einpreßnippel und der zugeordneten Befestigungsmutter verringert.The press-in nipple has a slight axial play in the receiving bore of the valve housing to allow easy rotation of the parts mentioned guarantee. It is preferred if at the lower end of the Press-in nipple a mechanical ring made of a plastic material, in particular Teflon, which is the friction between the press-in nipple and the associated mounting nut reduced.

Im folgenden wird die Erfindung anhand von einer lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert. Hierbei gehen aus der Zeichnung und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.In the following, the invention is based on only one embodiment illustrative drawing explained in more detail. Here go from the drawing and their Description of further features and advantages of the invention essential to the invention out.

In der Abbildung ist schematisiert ein Querschnitt durch eine Handabschaltpistole nach der Erfindung gezeigt.The figure shows a cross section through a manual shut-off gun shown according to the invention.

Die Handabschaltpistole besteht im wesentlichen aus zwei spiegelsymmetrisch zueinander angeordneten Gehäuseschalen 5, wobei gemäß der Figur lediglich die eine Gehäuseschale 5 dargestellt ist, während die andere Gehäuseschale genau gleich ausgebildet ist. Die beiden Gehäuseschalen 5 definieren ein in sich geschlossenes Gehäuse, welches im wesentlichen aus einer Rückwand 7, aus einer Vorderwand 6, aus einer Bodenwand 8 und aus einer Stirnwand 9 besteht.The manual shut-off gun essentially consists of two mirror-symmetrical housing shells 5 arranged with respect to one another, only the one housing shell 5 is shown, while the other housing shell is accurate is the same. The two housing shells 5 define one in itself closed housing, which consists essentially of a rear wall 7, from a Front wall 6, consists of a bottom wall 8 and an end wall 9.

Außerhalb des Gehäuses ist eine Knickschutzhülse 2 angeordnet, welche die Knickschutzeinrichtung aufweist. Diese Knickschutzeinrichtung besteht im wesentlichen aus einer unteren, tulpenförmig sich nach außen öffnenden Aufnahmeöffnung 3, in welche der HD-Schlauch 4 eingeführt wird, der mittels einer Preßhülse 20 auf einem Ansatz eines Einpreßnippels 18 abdichtend gehalten wird. Outside the housing, a kink protection sleeve 2 is arranged, which Kink protection device has. This kink protection device consists in essentially from a lower, tulip-shaped opening to the outside Receiving opening 3, into which the HD hose 4 is inserted, which by means of a Press sleeve 20 is held sealingly on a neck of a press-in nipple 18.

In der Knickschutzhülse 2 ist fest eine Befestigungsmutter 19 angeordnet, die mit einem zugeordneten Stift 40 drehgesichert arretiert in der Knickschutzhülse gehalten ist. Vorteilhaft hierbei ist, daß der Einpreßnippel 18 mit entsprechenden Dichtungsmitteln sich einerseits an der Befestigungsmutter 19 und andererseits an dem Ventilkörper 36 dichtend anlegt und gleichzeitig aber zu den genannten Teilen verdrehbar ist, so daß der Hochdruckschlauch 4 verdrehbar in der Handabschaltpistole 1 gehalten wird. Zwischen dem Einpreßnippel 18 und der Befestigungsmutter 1ß ist ein Gleitring 39 eingesetzt.In the anti-kink sleeve 2, a mounting nut 19 is fixed, the with an associated pin 40 locked against rotation in the kink protection sleeve is. The advantage here is that the press-in nipple 18 with appropriate Sealants on the one hand on the fastening nut 19 and on the other the valve body 36 seals and at the same time to the parts mentioned is rotatable, so that the high pressure hose 4 is rotatable in the Manual shut-off gun 1 is held. Between the press-in nipple 18 and the Fastening nut 1ß a sliding ring 39 is used.

Der Einpreßnippel 18 mündet über einen Absatz in eine Buchse 17, welche als separates Mutternteil in den Ventilkörper 36 eingeschraubt wird. Diese Buchse 17 bildet den unteren Teil der Ventilanordnung, weil die Buchse eine Druckfeder 16 aufnimmt, deren anderes Ende sich an einer Ventilkugel 11 abstützt, die ihrerseits in einem Ventilsitz 12 gehalten wird. Auf die Kugel drückt ein Ventilstößel 13, der abdichtend im Ventilkörper 36 in einer Bohrung geführt ist und dessen oberes freies Ende durch eine Führungsbuchse 14 geführt ist, welche eine entsprechende Stopfbuchse und O-Ringe aufweist. Auf diese Weise wird vermieden, daß das Hochdruckmedium aus diesem Führungskanal des Ventilstößels 13 nach außen dringt. Das obere, freie Ende des Ventilstößels 13 sitzt auf einem gehärteten Stahleinsatz auf, der Teil des Krafthebels 37 des Betätigungshebels 15 ist. Der Betätigungshebel 15 der Handabschaltpistole 1 besteht nämlich aus einem zweiteiligen Hebel, wobei der eine Hebel relativ lang ausgeführt ist und als Handauflage 38 ausgeführt ist. Dieser Betätigungshebel als zweiarmiger Hebel ist in dem Schwenklager schwenkbar gelagert, und der andere Hebelteil wird von dem vorher erwähnten Krafthebel 37 gebildet. Dieser Krafthebel 37 wirkt also mit seinem Metalleinsatz auf das obere Ende des Ventilstößels 13, welches damit in axialer Richtung verschiebbar ist und damit die Ventilkugel 11 von ihrem Ventilsitz 12 abhebt. Damit wird der Hochdruckkanal freigegeben und das Hochdruckmedium strömt von dem Innenraum des HD-Schlauches über den nun geöffneten Ventilsitz 12 in den HD-Kanal 30 stromabwärts, der insgesamt mit 10 bezeichneten Abschalteinrichtung. The press-in nipple 18 opens via a shoulder into a bushing 17, which as separate nut part is screwed into the valve body 36. This socket 17th forms the lower part of the valve assembly because the bushing has a compression spring 16 records, the other end of which is supported on a valve ball 11, which in turn in a valve seat 12 is held. A valve lifter 13 presses on the ball is sealingly guided in the valve body 36 in a bore and its upper free End is guided by a guide bush 14 which has a corresponding Gland and O-rings. In this way it is avoided that the High pressure medium from this guide channel of the valve lifter 13 to the outside penetrates. The upper, free end of the valve lifter 13 sits on a hardened Steel insert, which is part of the power lever 37 of the operating lever 15. The Actuating lever 15 of the manual shut-off gun 1 consists of one two-part lever, the one lever is relatively long and as Hand rest 38 is executed. This operating lever as a two-armed lever is in the pivot bearing is pivotally mounted, and the other lever part is from the previously mentioned power lever 37 formed. This power lever 37 thus works with his Metal insert on the upper end of the valve lifter 13, which is thus in the axial Is displaceable in the direction and thus the valve ball 11 from its valve seat 12 takes off. This releases the high pressure channel and the high pressure medium flows from the interior of the HP hose over the now open valve seat 12 in the HD channel 30 downstream, the total designated 10 Shutoff.

Mit dem Tangentialstift 40 wird die Befestigungsmutter 19 mit der Knickschutzhülse 2 drehfest verbunden. Eine derartige einfache technische Lösung vereinfacht auch das Einpressen des Hochdruckschlauches in die Preßhülse 20, die werkstoffeinstückig mit dem Einpreßnippel 18 ausgebildet ist.With the tangential pin 40, the fastening nut 19 with the anti-kink sleeve 2 non-rotatably connected. Such a simple technical solution also simplifies this Pressing the high-pressure hose into the press sleeve 20, which is made of one piece of material is formed with the press-in nipple 18.

Durch einfaches Herausschlagen des Tangentialstiftes 40 kann somit die Verbindung zwischen der Befestigungsmutter 19 und der Knickschutzhülse 2 gelöst werden, die danach einfach abgenommen werden kann, und danach kann die Dichtung 41 im Einpreßnippel 18 problemlos getauscht werden. Ferner hat die Knickschutzhülse 2 eine Verzahnung 42 an ihrem oberen stirnseitigen Ende, die als Schräg-Innen-Verzahnung ausgebildet ist. In diese Verzahnung 42 greift ein Schieber 43 ein, der einen Betätigungsknopf 44 aufweist, der fest mit einem Schiebeteil 45 verbunden ist, welches Schiebeteil eine Rastnase 46 aufweist, die in Eingriff mit der Verzahnung 42 bringbar ist.By simply knocking out the tangential pin 40, the Connection between the fastening nut 19 and the anti-kink sleeve 2 released that can be easily removed afterwards, and after that the Seal 41 in the press-in nipple 18 can be easily replaced. Furthermore, the Anti-kink sleeve 2 a toothing 42 at its upper end, which as Helical internal toothing is formed. This toothing 42 engages Slider 43, which has an operating button 44, which is fixed to a Sliding part 45 is connected, which sliding part has a latch 46, which in Engagement with the toothing 42 can be brought.

Der Schieber 43 wird mittels einer Feder 47 federbelastet in einer Ausnehmung 48 in der Gehäuseschale 5 der Handabschaltpistole 1 gehalten, so daß der Betätigungsknopf 44 in seiner nach unten geschobenen Lage federbelastet gehalten wird. Er ist im übrigen im Bereich einer Ausnehmung 49 im Zwischenraum zwischen den Gehäuseschalen 5 verschiebbar gehalten.The slider 43 is spring-loaded in a recess 48 in by means of a spring 47 the housing shell 5 of the manual shut-off gun 1, so that the Actuating button 44 is held spring-loaded in its downward position becomes. It is in the area of a recess 49 in the space between the housing shells 5 slidably held.

In der in der Abbildung gezeigten Verschiebestellung befindet sich der Schiebeteil 45 mit seiner Rastnase 46 in Eingriff mit der Verzahnung 42, so daß die Knickschutzhülse 2 drehfest mit den Gehäuseschalen 5 der Handabschaltpistole 1 gekoppelt ist.The sliding part 45 is in the shift position shown in the figure with its locking lug 46 in engagement with the toothing 42 so that the Anti-kink sleeve 2 rotatably with the housing shells 5 of the manual shut-off gun 1 is coupled.

Sobald aber der Betätigungsknopf 44 nach oben entgegen der Kraft der Feder 47 verschoben wird, kommt die Rastnase 46 außer Eingriff mit der Verzahnung 42 und die gesamte Knickschutzhülse 2 kann sich zusammen mit der Befestigungsmutter 19 drehen, wodurch also der gesamte Hochdruckschlauch drehbar zu der Handabschaltpistole 1 ausgebildet ist. Es handelt sich also um eine Dreh-Arretierung, die durch entsprechende Betätigung des Betätigungsknopfes 44 ausgelöst werden kann.But as soon as the operating button 44 upwards against the force of the spring 47 is shifted, the detent 46 comes out of engagement with the teeth 42 and the entire kink protection sleeve 2 together with the fastening nut 19 turn, so that the entire high pressure hose rotatable to the Handabschaltpistole 1 is formed. So it's a turn lock, by the corresponding actuation of the actuation button 44 can be triggered.

Eine solche Dreh-Arretierung ist aus Sicherheitsgründen erforderlich, denn anderenfalls würde die Drehung unwillkürlich erfolgen und es besteht dann die Gefahr, daß die gesamte Handabschaltpistole 1 um den festgehaltenen Hochdruckschlauch rotiert und zu Beschädigungen führt.Such a rotation lock is necessary for safety reasons, because otherwise the rotation would take place involuntarily and there is then Danger that the entire handgun 1 to the detained High pressure hose rotates and leads to damage.

Außerdem ist eine solche Dreharretierung für den Fall wichtig, daß ein Benutzer unbeabsichtigt die gesamte Anordnung verdreht, womit die Gefahr besteht, daß der Hochdruckschlauch aus einer Verschraubung an der Handabschaltpistole herausgedreht wird. Sofern dieser Hochdruckschlauch dann unter Hochdruckmedium steht, kann er zu schweren Beschädigungen und Verletzungen führen. Dies wird durch die besagte Dreharretierung vermieden, die nur willkürlich durch Betätigung eines Betätigungsknopfes 44 ausgelöst werden kann.In addition, such a rotation lock is important in the event that a user unintentionally twisted the entire arrangement, with the risk that the High pressure hose from a screw connection on the manual shut-off gun is turned out. If this high pressure hose is then under High pressure medium, it can cause serious damage and injuries to lead. This is avoided by said rotation lock, which is only arbitrary can be triggered by actuating an actuating button 44.

Insgesamt ergibt sich eine wesentlich einfachere handhabbare und betriebssichere Antiverdreheinrichtung. Overall, the result is a much easier to handle and reliable Anti-twisting.

Zeichnungslegendedrawing Legend

11
HandabschaltpistoleHandabschaltpistole
22
KnickschutzhülseKink sleeve
33
Aufnahmeöffnungreceiving opening
44
HD-SchlauchHP hose
55
Gehäuseschaleshell
66
Vorderwandfront wall
77
Rückwandrear wall
88th
Bodenwandbottom wall
99
Stirnwandbulkhead
1010
AbschaltventileinrichtungAbschaltventileinrichtung
1111
Ventilkugelvalve ball
1212
Ventilsitzvalve seat
1313
Ventilstößeltappet
1414
Führungsbuchseguide bush
1515
Betätigungshebelactuating lever
1717
BuchseRifle
1818
EinpreßnippelEinpreßnippel
1919
Befestigungsmutterfixing nut
2020
Preßhülsecompression sleeve
3636
Ventilkörpervalve body
3737
Krafthebelpower lever
3838
Handauflagepalmrest
3939
Gleitringsliding ring
4040
TangentialstiftTangentialstift
4141
Dichtungpoetry
4242
Verzahnunggearing
4343
Schieberpusher
4444
Betätigungsknopfactuating button
4545
Schiebeteil sliding part
4646
Rastnaselocking lug
4747
Federfeather
4848
Ausnehmungrecess
4949
""

Claims (7)

  1. Hand cut-off gun comprising a housing for a high pressure cleaning apparatus with an anti-twisting device for the high pressure hose, the anti-twisting device being arranged in the housing and being connected to a valve body of the hand cut-off gun, and in that the anti-twisting device is surrounded by an anti-buckling sleeve, characterised in that the anti-twisting device (2, 18 to 20) is locked and can be randomly exposed.
  2. Hand cut-off gun according to claim 1, characterised in that the lock acts on the anti-buckling sleeve (2).
  3. Hand cut-off gun according to claim 1 or 2, characterised in that the anti-buckling sleeve (2) is provided with a toothing (42) in which a manually actuable slide (43) engages.
  4. Hand cut-off gun according to any one of claims 1 to 3, characterised in that the anti-twisting device comprises a press-in nipple (18) and a press sleeve (20) which are rigidly connected to the anti-buckling sleeve (2) via a fastening nut (19) and a tangential pin (40).
  5. Hand cut-off gun according to claim 4, characterised in that the fastening nut (19) can be secured via the anti-buckling sleeve (2) and can easily be released once the securing is released.
  6. Hand cut-off gun according to claim 4 or 5, characterised in that the press-in nipple (18) has axial play when the fastening nut (19) is fixed in position.
  7. Hand cut-off gun according to any one of claims 4 to 6, characterised in that a slide-ring (39) is provided between the components (18, 19) of the anti-twisting device which are rotatable relative to one another.
EP98118237A 1997-09-30 1998-09-25 Cut-off gun for a high pressure cleaning device with antirotation device for the high pressure hose Expired - Lifetime EP0904845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19743094 1997-09-30
DE19743094A DE19743094A1 (en) 1997-09-30 1997-09-30 Switch-off gun for a high-pressure cleaning device with anti-twist device for the high-pressure hose

Publications (3)

Publication Number Publication Date
EP0904845A2 EP0904845A2 (en) 1999-03-31
EP0904845A3 EP0904845A3 (en) 2000-12-13
EP0904845B1 true EP0904845B1 (en) 2003-06-18

Family

ID=7844077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118237A Expired - Lifetime EP0904845B1 (en) 1997-09-30 1998-09-25 Cut-off gun for a high pressure cleaning device with antirotation device for the high pressure hose

Country Status (4)

Country Link
EP (1) EP0904845B1 (en)
AT (1) ATE243077T1 (en)
DE (2) DE19743094A1 (en)
DK (1) DK0904845T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059589A1 (en) 2008-11-28 2010-06-02 Nilfisk-Advance A/S Handabschaltpistole

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000576A (en) * 1960-03-01 1961-09-19 Spee Flo Company Spray gun
US3459374A (en) * 1965-07-07 1969-08-05 Ransburg Electro Coating Corp Electrostatic coating apparatus
DE3236913A1 (en) * 1982-10-06 1984-04-12 Wolfgang 4800 Bielefeld Suttner Spray device
DE3407744C2 (en) * 1984-03-02 1986-01-23 Alfred Kärcher GmbH & Co, 7057 Winnenden Hand spray gun for a high pressure cleaning device
DE3720241C2 (en) * 1986-09-26 1994-09-22 Wolfgang Suttner Valve gun for a high pressure cleaning device
DE3834983A1 (en) * 1988-10-14 1990-04-19 Kopperschmidt Mueller & Co SPRAY GUN
DE3933386C1 (en) * 1989-10-06 1990-12-13 Alfred Kaercher Gmbh & Co, 7057 Winnenden, De
DE4007880A1 (en) * 1990-02-28 1991-08-29 Suttner Gmbh & Co Kg Valve gun for high pressure cleaning machines - has asymmetrical two=part housing with removable top for inserting valve insert
DE4035008C2 (en) * 1990-02-28 1993-10-28 Suttner Gmbh & Co Kg Hose coupling for high pressure hoses
DE9203186U1 (en) * 1992-03-10 1992-08-20 Tisch, Ulrike, 8900 Augsburg ROTOJET Top-Arm (rotating swivel arm) - Device for supplying workplaces with liquid/gaseous media, as well as foam media
DE4216168C1 (en) * 1992-05-15 1993-10-14 Friedhelm Ramspott Connecting piece for plastics hose of bathroom hand shower - involves plastics nipple rotatable outside hose and located in brass ring with cap but screwed onto threaded connection of hand shower
US5725161A (en) * 1995-02-28 1998-03-10 Nordson Corporation Electrostatic coating system including improved spray gun for conductive paints
DE19617417A1 (en) * 1996-05-01 1997-11-06 Kaercher Gmbh & Co Alfred Manual spray gun for a high pressure cleaning device
DE29612979U1 (en) * 1996-05-01 1996-09-19 Alfred Kärcher GmbH & Co, 71364 Winnenden Manual spray gun for a high pressure cleaning device

Also Published As

Publication number Publication date
DE59808741D1 (en) 2003-07-24
ATE243077T1 (en) 2003-07-15
EP0904845A2 (en) 1999-03-31
EP0904845A3 (en) 2000-12-13
DK0904845T3 (en) 2003-10-06
DE19743094A1 (en) 1999-04-01

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