EP0813918B1 - Hochdruckdüse für ein Hochdruckreinigungsgerät - Google Patents
Hochdruckdüse für ein Hochdruckreinigungsgerät 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
Links
Images
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)
Description
- 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.
- 1.
- Lanzenrohr
- 2.
- Bajonettkupplung
- 3.
- Innenrohr
- 4.
- Düsenaufnahmekörper
- 5.
- Dichtring
- 6.
- Kunststoffgriffschale
- 7.
- Skalenring
- 8.
- Regulierungsring
- 9.
- Dichtring
- 10.
- Anschlagschraube
- 11.
- Nut
- 12.
- Düsenkörper
- 13.
- Druckfeder
- 14.
- Konusfläche
- 15.
- Druckraum
- 16.
- Bypassbohrung
- 17.
- Druckraum
- 18.
- Dichtring
- 19.
- Kalibrierbohrung
- 20.
- Druckraum
- 21.
- Pfeilrichtung
- 23.
- Schulter
- 24.
- Anlagefläche
- 25.
- Bohrung
- 26
- Anzeigekeil
- 27.
- Druckbereiche
- 28
- Anzeigebereich
- 29.
- Drehülse
- 30.
- Ausnehmung
- 31.
- Stifte
- 32.
- Innenteil
- 33.
- Führungsblatt
- 34.
- Führungsblatt
- 35
- Zwischenraum
- 36.
- Ansatz
- 37.
- Ansatz
- 38.
- Exzenterkurve
- 39.
- Exzenterkurve
- 40.
- Anschlag
- 41.
- Führungsteil
- 42.
- Führungsteil
- 43.
- Gewinde
- 44.
- Marke
Claims (7)
- Hochdruckdüse für ein Hochdruckreinigungsgerät, mit Verstellmöglichkeit für den Arbeitsdruck eines die Düse durchströmenden Druckmediums, beinhaltendeinen von einem Regulierungsring (8) umgebenen Düsenaufnahmekörper (4), welche gegeneinander axial verschiebbar sind,einen Düsenkörper (12) mit einem zentralen Durchlaß (19,20) für das Druckmedium und wenigstens einer Bypassbohrung (16), wobei der Düsenkörper (12) mit einer Stirnseite gegen eine Anlagefläche (14) des Düsenaufnahmekörper (4) anliegt und sich bei Verschiebung des Regulierungsrings (8) mitverschiebt, so daß die Stirnfläche des Düsenkörpers (12) von der zugeordneten Anlagefläche (14) des Düsenaufnahmekörpers (4) abhebt und den Durchtritt des Druckmediums durch die Bypassbohrung (16) freigibt
der Düsenkörper (12) in einer zentralen Innenbohrung des Düsenaufnahmekörpers (4)aufgenommen, federbelastet gegen eine Anlagefläche (24) des Regulierungsringes (8) anliegt, so daß die durchfließende Wassermenge unabhängig vom eingestellten Druck konstant bleibt. - Hochdruckdüse nach Anspruch 1, dadurch gekennzeichnet, daß der Regulierungsring (8) über ein Gewinde (43) drehbar am Düsenaufnahmekörper (4) angeordnet ist und sich bei Drehung in axialer Richtung (21) verschiebt.
- Hochdruckdüse nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Regulierungsring (8) mit einer Drehhülse (29) verbunden ist, in deren zentraler Ausnehmung (30) ein feststehendes Innenteil (32) vorgesehen ist, an welchem Führungsblätter (33,34) einseitig federnd gelagert sind.
- Hochdruckdüse nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zwischen den Führungsblätter (33,34) ein Zwischenraum (35) für den Austritt des Druckmediums vorhanden ist.
- Hochdruckdüse nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß jedes Führungsblatt (33,34) ein Führungsteil (41,42) aufweist, das mit einem Ansatz (36,37) an einer zugeordneten, an der Innenseite der Drehhülse (29) ausgebildeten Exzenterkurve (38,39) anliegt.
- Hochdruckdüse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Ansätze (36,37) durch Verdrehen der Drehhülse (29) an den Exzenterkurven (38,39) entlanggleiten und dadurch die Breite des Zwischenraums (35) verändern.
- Hochdruckdüse nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Drehhülse (29) radiale Anschläge (40) zur Drehwinkelbegrenzung aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19624333A DE19624333A1 (de) | 1996-06-19 | 1996-06-19 | Hochdruckdüse für ein Hochdruckreinigungsgerät |
DE19624333 | 1996-06-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0813918A2 EP0813918A2 (de) | 1997-12-29 |
EP0813918A3 EP0813918A3 (de) | 1998-07-01 |
EP0813918B1 true EP0813918B1 (de) | 2002-02-27 |
Family
ID=7797293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97109832A Expired - Lifetime EP0813918B1 (de) | 1996-06-19 | 1997-06-17 | Hochdruckdüse für ein Hochdruckreinigungsgerät |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0813918B1 (de) |
AT (1) | ATE213668T1 (de) |
DE (2) | DE19624333A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012007014A1 (de) * | 2012-04-05 | 2013-10-10 | Anton Jäger | Reinigungsvorrichtung |
WO2016031612A1 (ja) * | 2014-08-25 | 2016-03-03 | 日立工機株式会社 | 洗浄機用ノズル及び洗浄機 |
CN107073413A (zh) | 2014-09-11 | 2017-08-18 | Mtm水力设备有限公司 | 用于高压水枪的泡沫产生装置 |
JP7034352B1 (ja) * | 2021-03-25 | 2022-03-11 | 株式会社スギノマシン | ノズル |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1864293U (de) * | 1961-02-02 | 1962-12-20 | Apa Kg Bauder Otto | Schlauchmundstueck. |
US3746262A (en) * | 1971-10-12 | 1973-07-17 | Bete Fog Nozzle Inc | Spray nozzle |
DE2906648C3 (de) * | 1979-02-21 | 1981-09-10 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Spritzdüsenanordnung für Hochdruckreinigungsgeräte |
DK149503C (da) * | 1983-11-25 | 1986-12-29 | Westergaard Knud Erik | Udsproejtningsdyse til hoejtryksrensere |
DE4020737C1 (de) * | 1990-06-29 | 1991-08-29 | Alfred Kaercher Gmbh & Co, 7057 Winnenden, De | |
IT1245146B (it) * | 1991-02-11 | 1994-09-13 | Faip Off Mecc | Ugello perfezionato per macchine idropulitrici ad alta pressione e simili con bocche di erogazione allineate |
-
1996
- 1996-06-19 DE DE19624333A patent/DE19624333A1/de not_active Ceased
-
1997
- 1997-06-17 DE DE59706473T patent/DE59706473D1/de not_active Expired - Fee Related
- 1997-06-17 AT AT97109832T patent/ATE213668T1/de not_active IP Right Cessation
- 1997-06-17 EP EP97109832A patent/EP0813918B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE19624333A1 (de) | 1998-01-08 |
EP0813918A3 (de) | 1998-07-01 |
DE59706473D1 (de) | 2002-04-04 |
EP0813918A2 (de) | 1997-12-29 |
ATE213668T1 (de) | 2002-03-15 |
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