EP0813918B1 - High-pressure nozzle for a high-pressure cleaning device - Google Patents
High-pressure nozzle for a high-pressure cleaning device Download PDFInfo
- Publication number
- EP0813918B1 EP0813918B1 EP97109832A EP97109832A EP0813918B1 EP 0813918 B1 EP0813918 B1 EP 0813918B1 EP 97109832 A EP97109832 A EP 97109832A EP 97109832 A EP97109832 A EP 97109832A EP 0813918 B1 EP0813918 B1 EP 0813918B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- nozzle
- regulating ring
- jet
- holder body
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
- B08B3/028—Spray guns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
Definitions
- the invention relates to a high-pressure nozzle for a High pressure cleaning device according to the preamble of Claim 1.
- the disadvantage of the high-pressure nozzles known to date is that that when adjusting the working pressure also the flowing water in an undesirable manner becomes. Especially if you set a lower pressure wants, there is the disadvantage that the amount of water is reduced becomes.
- the invention is therefore based on the object High pressure nozzle of the type mentioned in such a way that if the pressure is reduced, not the same time delivered amount of water is reduced.
- An essential feature of the invention is that in the area of a central inner bore of a nozzle receiving body spring - loaded nozzle body axially displaceable in Flow direction of the water against a contact surface of a Regulatory ring is present, and that furthermore the nozzle body in Flow counter direction on a conical contact surface of the Nozzle holder body rests so that it is spring-loaded between the contact surface of the regulating ring and the associated one Contact surface of the nozzle holder body is displaceable and that also the regulating ring with an axial thread on the Screwed nozzle receptacle and to the receptacle in is axially adjustable and that of an annular space, that surrounds the nozzle body and that in the nozzle receiving body is arranged, bypass holes emanate from the nozzle body enforce and the next to the high pressure calibration hole of the Open the nozzle body in the front part of the high pressure nozzle.
- the regulating ring used for pressure regulation serves, additionally with a device for expansion or change in shape of the ejected water jet connected is. It is a non-rotatable connection between the Pressure regulating ring and the device for expanding the Water jet, in which case a rotating sleeve rotatably with is connected to the aforementioned pressure regulating ring. On this way it is possible to turn the Pressure regulating ring to change the pressure, whereby the Rotating sleeve for expanding the water jet also rotates.
- the high pressure nozzle essentially consists of a lance tube 1, which has a bayonet coupling 2 with the shut-off gun connected is.
- sealing rings 5 In the lance tube 1 is sealed via sealing rings 5, an inner tube 3 is inserted, which to the outside Plastic grips 6 is covered.
- the inner tube 3 is sufficient sealed over the mentioned sealing rings 5, in one Nozzle receiving body 4, which nozzle receiving body 4 a forms a fixed part. It is otherwise, via sealing rings 9 sealed, surrounded by a rotatable regulating ring 8, which has a scale ring 7 to which a fixed mark 44 is assigned to one of the plastic handle scales 6.
- a first display area 28 corresponds a pressure range in which a chemical solution over the High pressure lance can be sucked in, being a very low one Pressure is needed, but a relatively constant one Amount of water.
- the left area of the display wedge 26 corresponds to a small one Pressure at a certain amount of water
- the right one Range of the maximum pressure of z. B. corresponds to 150 bar at which the same amount of water is also dispensed.
- the advantage of this measure is that, for example, that for delivery the chemical solution determined with the constant Venturi nozzle the same water flow is flowing through, regardless of the Pressure of the water released.
- a Stop screw 10 engages. That way ensured that the regulating ring 8 only around 360 ° Nozzle holder body 4 can be rotated.
- a pressure chamber 17 is arranged in which axially adjustable, a nozzle body 12 is arranged spring-loaded is.
- the compression spring 13 is supported on a shoulder 23 of the Nozzle body 12 and presses it with a conical Contact surface to an associated conical contact surface 24 in Area of the regulation ring 8.
- the high pressure water flows in the position shown here via the inner tube 3 and the pressure chamber 15 into the central Inner bore of the nozzle body 12 flows in Pressure chamber 20 of the nozzle body 12 and then flows through the Calibration bore 19 in the outer pressure chamber of bore 25.
- the regulating ring 8 If, on the other hand, the regulating ring 8 is rotated, then there is axial displacement of the regulating ring 8 in relation to the fixed nozzle receiving body 4 in the direction 21 in that the regulating ring on a corresponding thread 43 between the regulating ring and the nozzle receiving body axially is held adjustable.
- the nozzle body 12 continues to the Contact surface 24 of the regulating ring 8, lifts at the same time but the nozzle body 12 from the associated conical Contact surface 14 on the inside of the nozzle holder body 4 from.
- water does not get out of the pressure chamber 15 more only in the pressure chamber 20 of the nozzle body, but in addition, in the pressure chamber 17 arranged in the bypass.
- Bypass bores 16 lead from this pressure chamber 17 Nozzle body 12 parallel to the calibration bore 19 in the central ejection bore 25 Nozzle body 12 from the conical surface 14, an enlarged Amount of water in the bypass to the central calibration bore 19 the bypass bores 16 into the bore 25.
- a rotating sleeve 29 is via pins 31 with the Regulation ring 8 connected, with an inner part 32 present which is in the central recess 30 of the rotating sleeve 29 is arranged.
- the inner part 32 is fixed in relation to the rotating sleeve 29 is formed. It lies down by means of Sealing rings on the front face of the nozzle holder body 4 on.
- guide blades 33, 34 are on one side resiliently mounted, the one between them according to Figure 2 Form space 35 through which the high pressure jet from the Calibration bore 19 emerges. Now the distance (the size of the gap 35) between the guide blades 33, 34 changed, then from the emerging omnidirectional corresponding broad jet are generated.
- each guide sheet 33, 34 with one each Guide part 41, 42 is connected to each guide part 41, 42 a radially outwardly facing extension 36, 37 is arranged with an assigned eccentric curve 38, 39 interacts.
- the eccentric curve is on the inside of the Rotating sleeve 29 is formed and has radial stops 40 for Limitation of the angle of rotation of the rotation of the rotating sleeve 29 in relation to the fixed inner part 32.
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
Die Erfindung betrifft eine Hochdruckdüse für ein
Hochdruckreinigungsgerät nach dem Oberbegriff des
Patentanspruchs 1.The invention relates to a high-pressure nozzle for a
High pressure cleaning device according to the preamble of
Bei den bisher bekannten Hochdruckdüsen besteht der Nachteil, daß bei der Verstellung des Arbeitsdruckes auch die durchfließende Wassermenge in unerwünschter Weise verstellt wird. Insbesondere wenn man einen niedrigeren Druck einstellen will, besteht der Nachteil, daß auch die Wassermenge vermindert wird.The disadvantage of the high-pressure nozzles known to date is that that when adjusting the working pressure also the flowing water in an undesirable manner becomes. Especially if you set a lower pressure wants, there is the disadvantage that the amount of water is reduced becomes.
Dies trifft auch auf die aus der EP 0 501 164 A1 hervorgehende Hochdruckdüse für ein Hochdruckreinigungsgerät mit Verstellmöglichkeit für den Arbeitsdruck eines die Düse durchströmenden Mediums zu.This also applies to that resulting from EP 0 501 164 A1 High pressure nozzle for a high pressure cleaning device with Adjustment for the working pressure of the nozzle flowing medium.
Damit besteht also der Nachteil, daß bei eingestelltem niedrigeren Druck die Schwemmwirkung des von der Hochdruckdüse abgegebenen Wassers vermindert wird.So there is the disadvantage that when set lower pressure the flooding effect of the high pressure nozzle released water is reduced.
Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Hochdruckdüse der eingangs genannten Art so weiterzubilden, daß bei einer Verminderung des Druckes nicht auch gleichzeitig die abgegebenen Wassermenge vermindert wird.The invention is therefore based on the object High pressure nozzle of the type mentioned in such a way that if the pressure is reduced, not the same time delivered amount of water is reduced.
Zur Lösung der gestellten Aufgabe ist die Erfindung durch die
technische Lehre des Anspruches 1 gekennzeichnet.To achieve the object, the invention is by
characterized technical teaching of
Wesentliches Merkmal der Erfindung ist, daß im Bereich einer zentralen Innenbohrung eines Düsenaufnahmekörpers ein federbelasteter Düsenkörper axial verschiebbar in Strömungsrichtung des Wassers gegen eine Anlagefläche eines Regulierungsringes anliegt, und daß ferner der Düsenkörper in Strömungsgegenrichtung an einer konischen Anlagefläche des Düsenaufnahmekörpers anliegt, so daß er federbelastet zwischen der Anlagefläche des Regulierungsringes und der zugeordneten Anlagefläche des Düsenaufnahmekörpers verschiebbar ist und daß ferner der Regulierungsring mit einem axialen Gewinde auf dem Düsenaufnahmekörper aufgeschraubt und zu dem Aufnahmekörper in axialer Richtung verstellbar ist und daß von einem Ringraum, der den Düsenkörper umgibt und der in dem Düsenaufnahmekörper angeordnet ist, Bypassbohrungen ausgehen, die den Düsenkörper durchsetzen und die neben der Hochdruckkalibrierbohrung des Düsenkörpers in den Vorderteil der Hochdruckdüse münden.An essential feature of the invention is that in the area of a central inner bore of a nozzle receiving body spring - loaded nozzle body axially displaceable in Flow direction of the water against a contact surface of a Regulatory ring is present, and that furthermore the nozzle body in Flow counter direction on a conical contact surface of the Nozzle holder body rests so that it is spring-loaded between the contact surface of the regulating ring and the associated one Contact surface of the nozzle holder body is displaceable and that also the regulating ring with an axial thread on the Screwed nozzle receptacle and to the receptacle in is axially adjustable and that of an annular space, that surrounds the nozzle body and that in the nozzle receiving body is arranged, bypass holes emanate from the nozzle body enforce and the next to the high pressure calibration hole of the Open the nozzle body in the front part of the high pressure nozzle.
Mit der gegebenen technischen Lehre wird erreicht, daß durch Verdrehung des Regulierringes es nun möglich ist, den Düsenkörper von einer Anlagefläche am Düsenaufnahmekörper abzuheben, wodurch nun das Hochdruckmedium nicht mehr nur alleine durch die zentrale Mittenbohrung des Düsenkörpers strömt, sondern im Bypass zu dieser zentralen Mittenbohrung durch entsprechende seitliche am Düsenkörper und den Düsenkörper durchsetzende Bypassbohrungen strömt und die zentrale Düse umströmt.With the given technical teaching it is achieved that Twisting the regulating ring is now possible Nozzle body from a contact surface on the nozzle receiving body to take off, which means that the high pressure medium is no longer just there solely through the central center hole of the nozzle body flows, but in the bypass to this central center hole through corresponding lateral on the nozzle body and the Bypass holes passing through the nozzle body flow and flows around the central nozzle.
Damit ergibt sich der Vorteil, daß man nun den Druck dadurch verringert, daß man im Bypass zu der Hochdruckdüse zusätzliches Wasser an der Hochdruckdüse vorbei führt und hierdurch der Druck insgesamt sinkt, die Wassermenge aber konstant bleibt.This gives the advantage that the pressure is now reduced reduces that one in the bypass to the high pressure nozzle Water leads past the high pressure nozzle and thereby the Total pressure drops, but the amount of water remains constant.
Auf diese Weise wird also vermieden, daß bei Verringerung des Druckes auch die Wassermenge verringert wird, weil bei Verringerung des Druckes die Bypassöffnungen geöffnet werden und das Hochdruckmedium nicht nur durch die zentrale Innenbohrung des Düsenkörpers sondern auch durch die den Düsenkörper umgebenden Bypassbohrungen in die zentrale Ausstoßbohrungen des Lanzenrohres fließt.In this way it is avoided that when reducing the Pressure also reduces the amount of water because Reducing the pressure to open the bypass openings and the high pressure medium not only through the central one Inner bore of the nozzle body but also through the Bypass holes surrounding the nozzle body in the central Ejection bores of the lance tube flow.
In einer Weiterbildung der vorliegenden Erfindung ist es vorgesehen, daß der Regulierungsring, der zur Druckregulierung dient, noch zusätzlich mit einer Vorrichtung zur Aufweitung bzw. Formänderung des ausgestoßenen Wasserstrahles verbunden ist. Es handelt sich um eine drehfeste Verbindung zwischen dem Druckregulierungsring und der Vorrichtung zur Aufweitung des Wasserstrahls, wobei in diesem Fall eine Drehhülse drehfest mit dem vorher erwähnten Druckregulierungsring verbunden ist. Auf diese Weise ist es möglich, durch alleiniges Drehen am Druckregulierungsring den Druck zu verändern, wobei sich die Drehhülse für die Aufweitung des Wasserstrahls mitdreht.In a development of the present invention, it is provided that the regulating ring used for pressure regulation serves, additionally with a device for expansion or change in shape of the ejected water jet connected is. It is a non-rotatable connection between the Pressure regulating ring and the device for expanding the Water jet, in which case a rotating sleeve rotatably with is connected to the aforementioned pressure regulating ring. On this way it is possible to turn the Pressure regulating ring to change the pressure, whereby the Rotating sleeve for expanding the water jet also rotates.
Wenn man den Druckregulierungsring festhält und statt dessen die Drehhülse für die Wasserstrahlaufweitung dreht, wird noch zusätzlich die Form des Wasserstrahles verändert. Hierbei ist vorgesehen, daß im Innenraum der Drehhülse sogenannte Führungsblätter vorhanden sind, wobei der gegenseitige Abstand der Führungsblätter durch Drehung an der Drehhülse veränderbar ist. Der Hochdruckstrahl läuft durch den Zwischenraum zwischen den Führungsblättern hindurch und es wird der Abstand zwischen den Führungsblättern verändert, so daß der Hochdruckstrahl mehr oder weniger zwischen den Führungsblättern eingeschlossen und dadurch begrenzt oder aufgeweitet wird. Auf diese Weise kann aus einem Rundstrahl ein Flachstrahl gemacht werden und entsprechend die Strahlcharakteristik verändert werden.If you hold the pressure regulating ring and instead the rotating sleeve for the water jet expansion is still turning additionally changed the shape of the water jet. Here is provided that so-called in the interior of the rotating sleeve Leader blades are present, with the mutual distance the guide blades can be changed by turning the rotating sleeve is. The high pressure jet runs through the space between through the guide blades and the distance between the guide blades changed so that the high pressure jet more or less enclosed between the guide sheets and thereby being limited or widened. That way a flat jet can be made from a round jet and the beam characteristics can be changed accordingly.
Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander. Alle in den Unterlagen, einschließlich der Zusammenfassung, offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räumliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject matter of the present invention results not only from the subject of the individual claims, but also from the combination of the individual claims among themselves. All in the documentation, including the Summary, disclosed information and characteristics, in particular the spatial training shown in the drawings claimed as essential to the invention, insofar as they are individually or are new in combination with the prior art.
Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.In the following the invention is based on only one Execution path illustrating drawings explained in more detail. Here go from the drawings and their description further features and advantages essential to the invention Invention.
Es zeigen:
- Figur 1:
- Schnitt durch eine Hochdruckdüse nach der Erfindung;
- Figur 2:
- Draufsicht auf das hochdruckseitige Ende der Hochdruckdüse in Richtung des Pfeiles II;
- Figur 3:
- Abwicklung des Skalenringes der Hochdruckdüse auf der Zeichenebene.
- Figure 1:
- Section through a high pressure nozzle according to the invention;
- Figure 2:
- Top view of the high-pressure end of the high-pressure nozzle in the direction of arrow II;
- Figure 3:
- Development of the scale ring of the high pressure nozzle on the drawing level.
Die Hochdruckdüse besteht im wesentlichen aus einem Lanzenrohr
1, welches über eine Bajonettkupplung 2 mit der Abschaltpistole
verbunden ist.The high pressure nozzle essentially consists of a
In das Lanzenrohr 1 ist hierbei abgedichtet über Dichtringe 5,
ein Innenrohr 3 eingesteckt, welches nach außen über
Kunststoffgriffschalen 6 abgedeckt ist. Das Innenrohr 3 reicht,
abgedichtet über die erwähnten Dichtringe 5, in einen
Düsenaufnahmekörper 4, welcher Düsenaufnahmekörper 4 ein
feststehendes Teil bildet. Er ist im übrigen, über Dichtringe 9
abgedichtet, von einem drehbaren Regulierungsring 8 umgeben,
der einen Skalenring 7 aufweist, dem eine feststehende Marke 44
auf einer der Kunststoffgriffschalen 6 zugeordnet ist.In the
In Figur 3 erkennt man, daß der Skalenring 7 verschiedene
Anzeigebereiche hat. Ein erster Anzeigebereich 28 entspricht
einem Druckbereich, bei dem eine Chemielösung über die
Hochdrucklanze angesaugt werden kann, wobei ein sehr niedriger
Druck benötigt wird, aber eine relativ gleichbleibende
Wassermenge.In Figure 3 it can be seen that the
Wichtig ist, daß die durch die Düse fließende Wassermenge über
den gesamten Verstellbereich des Skalenringes 7 gleichbleibt,
d. h. also nicht nur über den Anzeigebereich 28, sondern auch
über den Anzeigekeil 26 mit den weiteren Druckbereichen 27.It is important that the amount of water flowing through the nozzle over
the entire adjustment range of the
Der linke Bereich des Anzeigekeils 26 entspricht einem geringen
Druck bei einer bestimmten Wassermenge, wobei der rechte
Bereich dem Höchstdruck von z. B. 150 bar entspricht, bei dem
ebenfalls die gleiche Wassermenge abgegeben wird.The left area of the
Vorteil dieser Maßnahme ist, daß beispielsweise die zur Abgabe der Chemielösung bestimmte Venturidüse stets mit dem konstant gleichen Wasserstrom durchflossen wird, unabhängig von dem Druck des abgegebenen Wassers. The advantage of this measure is that, for example, that for delivery the chemical solution determined with the constant Venturi nozzle the same water flow is flowing through, regardless of the Pressure of the water released.
Zur Drehbegrenzung des Regulierungsringes 8 ist in dem
Düsenaufnahmekörper 4 eine Nut 11 eingearbeitet, in welche eine
Anschlagschraube 10 eingreift. Auf diese Weise wird
sichergestellt, daß der Regulierungsring 8 nur um 360° um den
Düsenaufnahmekörper 4 verdreht werden kann.To limit the rotation of the regulating
Wichtig ist nun, daß in dem zentralen Innenraum des
Düsenaufnahmekörpers 4 ein Druckraum 17 angeordnet ist, in dem
axial verstellbar ein Düsenkörper 12 federbelastet angeordnet
ist. Die Druckfeder 13 stützt sich an einer Schulter 23 des
Düsenkörpers 12 ab und preßt diesen mit einer konischen
Anlagefläche an eine zugeordnete konische Anlagefläche 24 im
Bereich des Regulierungsringes 8.It is now important that in the central interior of the
In der hier dargestellten Stellung strömt das Hochdruckwasser
über das Innenrohr 3 und den Druckraum 15 in die zentrale
Innenbohrung des Düsenkörpers 12 hinein, durchströmt den
Druckraum 20 des Düsenkörpers 12 und strömt dann durch die
Kalibrierbohrung 19 in den äußeren Druckraum der Bohrung 25.The high pressure water flows in the position shown here
via the
Wird hingegen der Regulierungsring 8 gedreht, dann erfolgt eine
axiale Verschiebung des Regulierringes 8 in Bezug zu dem
feststehenden Düsenaufnahmekörper 4 in Richtung 21 dadurch, daß
der Regulierungsring auf einem entsprechenden Gewinde 43
zwischen dem Regulierungsring und dem Düsenaufnahmekörper axial
verstellbar gehalten ist. In diesem Fall stützt sich aufgrund
der Federbelastung, der Düsenkörper 12 weiterhin an der
Anlagefläche 24 des Regulierungsring 8 ab, gleichzeitig hebt
aber der Düsenkörper 12 von der zugeordneten konischen
Anlagefläche 14 an der Innenseite des Düsenaufnahmekörpers 4
ab. Hierdurch gelangt nun Wasser aus dem Druckraum 15 nicht
mehr allein nur in den Druckraum 20 des Düsenkörpers, sondern
darüber hinaus noch in den im Bypass angeordneten Druckraum 17.
Aus diesem Druckraum 17 führen Bypassbohrungen 16 im
Düsenkörper 12 parallel zu der Kalibrierbohrung 19 in die
zentrale Ausstoßbohrung 25. Dadurch gelangt beim Abheben des
Düsenkörpers 12 von der Konusfläche 14, eine vergrößerte
Wassermenge im Bypass zu der zentralen Kalibrierbohrung 19 über
die Bypassbohrungen 16 in die Bohrung 25.If, on the other hand, the regulating
Dadurch wird der Druck kontinuierlich vermindert, wobei die durchfließende Wassermenge gleich bleibt.As a result, the pressure is continuously reduced, the flowing water remains the same.
Im folgenden wird nun die Strahlverstellung des Wasserstrahles
näher beschrieben. Eine Drehhülse 29 ist über Stifte 31 mit dem
Regulierungsring 8 verbunden, wobei ein Innenteil 32 vorhanden
ist, welches in der zentralen Ausnehmung 30 der Drehhülse 29
angeordnet ist. Das Innenteil 32 ist feststehend in Bezug zu
der Drehhülse 29 ausgebildet. Es legt sich hierbei mittels
Dichtringen an der vorderen Stirnseite des Düsenaufnahmekörpers
4 an. Im Innenteil 32 sind Führungsblätter 33, 34 einseitig
federnd gelagert, die zwischen sich gemäß Figur 2 einen
Zwischenraum 35 bilden, durch den der Hochdruckstrahl aus der
Kalibrierbohrung 19 heraustritt. Wird nun der Abstand
(das Maß des Zwischenraumes 35) zwischen den Führungsblättern
33, 34 verändert, dann kann aus dem austretenden Rundstrahl ein
entsprechender Breitstrahl erzeugt werden. Hierzu ist
vorgesehen, daß jedes Führungsblatt 33, 34 mit jeweils einem
Führungsteil 41, 42 verbunden ist, wobei an jedem Führungsteil
41, 42 ein radial auswärts weisender Ansatz 36, 37 angeordnet
ist, der mit einer zugeordneten Exzenterkurve 38, 39
zusammenwirkt. Die Exzenterkurve ist an der Innenseite der
Drehhülse 29 ausgebildet und weist radiale Anschläge 40 auf zur
Drehwinkelbegrenzung der Verdrehung der Drehhülse 29 in Bezug
zu dem feststehenden Innenteil 32.The following is the jet adjustment of the water jet
described in more detail. A rotating
Erfolgt nun eine Drehung der Drehhülse 29, dann gleiten die
Ansätze 36, 37 an der Innenseite der Exzenterkurven 38, 39
entlang, wodurch die Führungsteile 41, 42 radial einwärts
verstellt werden und der Abstand (Zwischenraum 35) entsprechend
vermindert wird.If the
Auf diese Weise ist es möglich, unabhängig von der Einstellung des Druckes einen Breitstrahl oder einen Rundstrahl herzustellen. This way it is possible regardless of the setting a wide jet or an omnidirectional print manufacture.
- 1.1.
- Lanzenrohrlance tube
- 2.Second
- Bajonettkupplungbayonet coupling
- 3.Third
- Innenrohrinner tube
- 4.4th
- DüsenaufnahmekörperNozzle receiving body
- 5.5th
- Dichtringseal
- 6.6th
- KunststoffgriffschalePlastic grip
- 7.7th
- Skalenringscale ring
- 8.8th.
- Regulierungsringregulating ring
- 9.9th
- Dichtringseal
- 10.10th
- Anschlagschraubestop screw
- 11.11th
- Nutgroove
- 12.12th
- Düsenkörpernozzle body
- 13.13th
- Druckfedercompression spring
- 14.14th
- Konusflächeconical surface
- 15.15th
- Druckraumpressure chamber
- 16.16th
- Bypassbohrungbypass bore
- 17.17th
- Druckraumpressure chamber
- 18.18th
- Dichtringseal
- 19.19th
- Kalibrierbohrungcalibration hole
- 20.20th
- Druckraumpressure chamber
- 21.21st
- Pfeilrichtungarrow
- 23.23rd
- Schultershoulder
- 24.24th
- Anlageflächecontact surface
- 25.25th
- Bohrungdrilling
- 2626
- Anzeigekeildisplay wedge
- 27.27th
- Druckbereichepressure ranges
- 2828
- Anzeigebereichdisplay area
- 29.29th
- DrehülseDrehülse
- 30.30th
- Ausnehmungrecess
- 31.31st
- Stiftepencils
- 32.32nd
- Innenteilinner part
- 33.33rd
- Führungsblattleader sheet
- 34.34th
- Führungsblattleader sheet
- 3535
- Zwischenraumgap
- 36.36th
- Ansatz approach
- 37.37th
- Ansatzapproach
- 38.38th
- Exzenterkurveeccentric curve
- 39.39th
- Exzenterkurveeccentric curve
- 40.40th
- Anschlagattack
- 41.41st
- Führungsteilguide part
- 42.42nd
- Führungsteilguide part
- 43.43rd
- Gewindethread
- 44.44th
- Markebrand
Claims (7)
- High-pressure nozzle for a high-pressure cleaner, with facility for adjusting the working pressure of a pressure medium flowing through the nozzle, comprisingcharacterized in thata nozzle holder body (4) surrounded by a regulating ring (8), these parts being axially displaceable with respect to each other,a nozzle body (12) with a central passage (19, 20) for the pressure medium and at least one bypass bore (16), the nozzle body (12) abutting by one end face against a bearing face (14) of the nozzle holder body (4) and shifting upon displacement of the regulating ring (8) so that the end face of the nozzle body (12) lifts off the corresponding bearing face (14) of the nozzle holder body (4) allowing pressure medium to pass through the bypass bore (16),
the nozzle body (12), held in a central inner core of the nozzle holder body (4), abuts under spring loading against a bearing face (24) of the regulating ring (8) so that the water throughput remains constant, independently of the set pressure. - High-pressure nozzle according to Claim 1, characterized in that the regulating ring (8) is arranged rotatably on the nozzle holder body (4) by means of a screw thread (43) and is displaced in the axial direction (21) when turned.
- High-pressure nozzle according to Claim 1 or Claim 2, characterized in that the regulating ring (8) is connected to a twist sleeve (29) in the central recess (30) of which a fixed inner part (32) is provided on which guide blades (33, 34) are unidirectionally resiliently mounted.
- High-pressure nozzle according to any one of Claims 1 to 3, characterized in that an interstice (35) for the discharge of pressure medium is present between the guide blades (33, 34).
- High-pressure nozzle according to any one of Claims 1 to 4, characterized in that each guide blade (33, 34) has a guide part (41, 42) which bears with a projection (36, 37) on a corresponding eccentric cam (38, 39) formed on the inside of the twist sleeve (29).
- High-pressure nozzle according to any one of Claims 1 to 5, characterized in that twisting of the twist sleeve (29) causes the projections (36, 37) to slide along the eccentric cams (38, 39) and thereby to alter the width of the interstice (35).
- High-pressure nozzle according to any one of Claims 1 to 6, characterized in that the twist sleeve (29) has radial stops (40) to limit the angle of twist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19624333A DE19624333A1 (en) | 1996-06-19 | 1996-06-19 | High pressure nozzle for a high pressure cleaning device |
| DE19624333 | 1996-06-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0813918A2 EP0813918A2 (en) | 1997-12-29 |
| EP0813918A3 EP0813918A3 (en) | 1998-07-01 |
| EP0813918B1 true EP0813918B1 (en) | 2002-02-27 |
Family
ID=7797293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97109832A Expired - Lifetime EP0813918B1 (en) | 1996-06-19 | 1997-06-17 | High-pressure nozzle for a high-pressure cleaning device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0813918B1 (en) |
| AT (1) | ATE213668T1 (en) |
| DE (2) | DE19624333A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012007014A1 (en) * | 2012-04-05 | 2013-10-10 | Anton Jäger | Cleaning device for cleaning e.g. solar or photovoltaic bearing surface, has pivot and rotation limiting device that are provided at portions of the steering element |
| WO2016031612A1 (en) * | 2014-08-25 | 2016-03-03 | 日立工機株式会社 | Cleaning machine nozzle and cleaning machine |
| US10173230B2 (en) | 2014-09-11 | 2019-01-08 | Mtm Hydro S.R.L. | Foam generating device for a high-pressure water gun |
| JP7034352B1 (en) * | 2021-03-25 | 2022-03-11 | 株式会社スギノマシン | nozzle |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1864293U (en) * | 1961-02-02 | 1962-12-20 | Apa Kg Bauder Otto | HOSE MOUTH PIECE. |
| US3746262A (en) * | 1971-10-12 | 1973-07-17 | Bete Fog Nozzle Inc | Spray nozzle |
| DE2906648C3 (en) * | 1979-02-21 | 1981-09-10 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Spray nozzle arrangement for high pressure cleaning devices |
| DK149503C (en) * | 1983-11-25 | 1986-12-29 | Westergaard Knud Erik | EXHAUST NOZZLE FOR HIGH PRESSURE CLEANERS |
| DE4020737C1 (en) * | 1990-06-29 | 1991-08-29 | Alfred Kaercher Gmbh & Co, 7057 Winnenden, De | |
| IT1245146B (en) * | 1991-02-11 | 1994-09-13 | Faip Off Mecc | PERFECTED NOZZLE FOR HIGH PRESSURE CLEANING MACHINES AND SIMILAR WITH ALIGNED DISPENSING SPOUTS |
-
1996
- 1996-06-19 DE DE19624333A patent/DE19624333A1/en not_active Ceased
-
1997
- 1997-06-17 EP EP97109832A patent/EP0813918B1/en not_active Expired - Lifetime
- 1997-06-17 DE DE59706473T patent/DE59706473D1/en not_active Expired - Fee Related
- 1997-06-17 AT AT97109832T patent/ATE213668T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE19624333A1 (en) | 1998-01-08 |
| EP0813918A3 (en) | 1998-07-01 |
| EP0813918A2 (en) | 1997-12-29 |
| ATE213668T1 (en) | 2002-03-15 |
| DE59706473D1 (en) | 2002-04-04 |
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