EP1196248B1 - Umschaltdüsenkopf für ein hochdruckreinigungsgerät - Google Patents
Umschaltdüsenkopf für ein hochdruckreinigungsgerät Download PDFInfo
- Publication number
- EP1196248B1 EP1196248B1 EP20000909365 EP00909365A EP1196248B1 EP 1196248 B1 EP1196248 B1 EP 1196248B1 EP 20000909365 EP20000909365 EP 20000909365 EP 00909365 A EP00909365 A EP 00909365A EP 1196248 B1 EP1196248 B1 EP 1196248B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- switching
- flow
- nozzle according
- flow passage
- 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
- 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
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/1681—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, sliding valve or cock and a lift valve
Definitions
- the invention relates to a changeover nozzle head for a High pressure cleaning device with a liquid supply and with one movably mounted in the changeover nozzle head Switching body, which leads to several nozzle bodies Has flow passages, which by movement of the Switchable body individually connectable to the fluid supply are.
- switching devices are known (DE 78 13 438 U1), where the selection of different Flow passages can take place through the valve body, which are freely movable in a flow passage are and optionally in front of the flow passages can be placed and close them, so that from the multiple flow passages only one remains free while everyone else is locked.
- Such a switching device has the advantage that a when the high-pressure cleaning device is switched off Changeover by simply turning the entire changeover nozzle head enabled because then under the influence the valve body in the flow passage by gravity can be positioned so that after switching on of the high-pressure cleaning device certain flow passages block and release others. adversely is that such a switching device in usually on the use of two flow passages and a valve body is restricted.
- the flow passage with the fluid supply connected which has a selection device.
- This Selector allows it when the Liquid supply, simply by turning the changeover nozzle head due to gravity the valve body so that when you turn on the liquid supply a nozzle body of this flow passage is blocked while the other remains open. Without switching manually on the changeover nozzle head, the Users simply by briefly switching off the Liquid supply and by turning the entire changeover nozzle head between the two nozzle bodies this Select flow passage, only for the In case that the third nozzle body is required, the Switching nozzle head of the switch body can be moved.
- this configuration has the great advantage that the switch between flat jet nozzle and Compact jet nozzle with the help of the selection device none Effort, because there are only two choices must be chosen and because of a choice between two positions no special care is necessary.
- the valve body is preferably a ball.
- the switch body in the switch nozzle head is rotatably supported when the flow channels and the fluid supply from the axis of rotation, respectively take the same distance and if the flow channels in the switch bodies in the circumferential direction are offset.
- the Switch body in a conventional manner in the switch nozzle head for switching from a flow channel to twisted the other, thereby selecting can whether the flow channel with dialing device or the flow channel without a selection device with the liquid supply is connected.
- the flow passage with a choice of a larger one Extends circumferential angle range. That is why it is, for example possible, three angular positions for the switch body to provide, in a first angular position the flow passage with no selector the fluid supply is connected in the other two In contrast, the flow passage has angular positions with dialing device. The user has this way the possibility of also selecting the two nozzle bodies the selection device by rotating the switch body on the changeover nozzle head if it has the Dialer not simply by twisting the whole Want to actuate the changeover nozzle head.
- the flow passage preferably has a selection device a receiving chamber for the valve body, emerge from the channels leading to the two nozzle bodies.
- these are Channels rectifier used.
- rectifiers can be pieces of pipe that over enclose part of their length axially parallel guide walls.
- a particularly favorable embodiment results if the rectifier has a valve seat at its inflow end for the valve body arranged in the receiving chamber form.
- the rectifier thus takes over Multiple task, namely it forms the valve seat once on the other hand it reduces the turbulence in the flow and finally it bridges the whole Distance between the receiving chamber and the nozzle body and thus defines the nozzle body at the end of the channel. He thus forms a spacer in a holding device for the nozzle body, especially if the Rectifier is pressed into the channel.
- the changeover nozzle head 1 shown in the drawing has a connecting piece 2, which has a union nut 3 on a not shown in the drawing Jet pipe of a high pressure cleaning device can be screwed on.
- the connecting piece 2 opens into the bottom 5 of a Pot-shaped housing 4, in this housing 4 is inserted a seal 6 covering the bottom 5, the at a distance from the central axis of the circular cylindrical Housing 4 entering the interior of the housing 4 Has feed opening 7, which in turn with the Interior of the connector 2 is connected.
- the housing 4 is from the open side Switch body 8 used the interior of the housing 4 completely filled and opposite the inner wall 8 of the housing 4 through a circumferential groove 9 inserted sealing ring 10 is sealed.
- the switch body 8 is rotatable in the housing 4 about its longitudinal axis and is thereby in the axial direction in the housing 4 held that one on an external thread 1 of the housing 4 screwed union nut 12 on a ring flange 13 of the switch body 8 is present (Figure 3).
- this Hood 15 is by a side insertion element 16 set in the axial direction, which between the Bearing ring 14 and the nut 12 engages ( Figure 4). This insertion element 16 is radial from it inserted position and then gives the Hood 15 free in the axial direction so that it from the switching nozzle head 1 can be deducted.
- the plastic hood 15 encompasses a transverse wall 17 the front, non-circular part of the switch body 8 positively and thereby twists the Switching body 8 when they are on the bearing ring by hand 15 is rotated.
- the switch body 8 are 120 ° in the circumferential direction offset three flow channels 18 arranged in the on the connecting piece 2nd opposite end each a nozzle body 19 is used is.
- the flow channels 18 are on a circle concentric to the axis of rotation of the switch body 8 is arranged and the radius of the Distance of the feed opening 7 corresponds to the axis of rotation.
- a first flow channel 18 passes through the switch body 8 along its entire length, so that this flow channel in a first position of the switch body 8 are connected directly to the feed opening 7 can, so that liquid over the connecting piece 2, the feed opening 7 and this flow channel to the corresponding nozzle body can reach. This position is shown in Figure 3.
- the other two flow channels 18 open at their the connector 2 facing end in a common Receiving chamber 20, which is open to the seal 6 is and is completed by this.
- this reception chamber 20 is a spherical valve body 21 recorded, which move freely in the receiving chamber 20 can.
- Each rectifier 22 forms a pipe section 23, which has a valve seat at the receiving chamber end 24 forms for the spherical valve body 21.
- axially parallel guide walls 25 which are about extend half the length of the pipe section 23.
- the plastic pipe section 23 takes the entire space of the flow channel and is on corresponding nozzle body 19 of the respective flow channel 18 on.
- the rectifiers 22 are in the flow channels pressed in and held in this in the press fit, so that they are simultaneously in the flow channel 18 inserted nozzle body 19 in the axial direction fix and thus take on a multiple function, namely the function of calming the turbulent Flow in the flow channel, on the other hand the function a fixation of the nozzle body and finally the function of a valve seat for the spherical Valve body 21.
- the switching body 8 When operating the changeover nozzle head 1 the switching body 8 is normally by means of Hood 15 rotated to a position in which the receiving chamber 20 is aligned with the feed opening 7, in the liquid thus supplied into the receiving chamber 20 occurs. Before adding the liquid can the valve body 21 freely in the receiving chamber 20th move so that the user by twisting the entire Switching nozzle head 1 can choose which of the two flow channels emerging from the receiving chamber 20 18 the spherical valve body 21 sets. If the liquid supply is now switched on, the valve body is in the selected position pressed against the corresponding valve seat 24 and closes thereby the associated flow channel, the Liquid then exits the receiving chamber through the other 20 emerging flow channel. A Switching within the receiving chamber 20 can without Adjustment of the changeover nozzle head 1 simply by this take place that the fluid supply is switched off and the entire switching nozzle head 1 is oriented so that the now freely movable valve body 21 the other valve seat 24 sets.
- Such a switchover can basically be done also achieve that the switch body 8th between the two positions in which the receiving chamber 20 is connected to the feed opening 7 is, however, the user must then take care that the switch nozzle head 1 is held so is that the flow channel to be blocked in each case is below, so that the valve body 21 under the Effect of gravity in front of this flow channel.
- the user desires liquid via the flow channel 18 deliver the switch body 8 completely enforced and in which there is no reception chamber then this can be done by turning the switch body 8 by means of the hood 15 until the corresponding Flow channel aligned with the feed opening 7 is, as shown in Figure 3.
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Laser Beam Processing (AREA)
Description
- Figur 1:
- eine Vorderansicht eines Umschaltkopfes mit drei Düsenkörpern in einer ersten Schaltstellung des Umschaltkörpers;
- Figur 2:
- eine Ansicht ähnlich Figur 2 in einer zweiten Schaltstellung des Umschaltkörpers;
- Figur 3:
- eine Längsschnittansicht des Umschaltdüsenkopfes längs Linie 3-3 in Figur 1;
- Figur 4:
- eine Teilschnittansicht längs Linie 4-4 in Figur 1;
- Figur 5:
- eine Schnittansicht längs Linie 5-5 in Figur 3 und
- Figur 6:
- eine Schnittansicht längs Linie 6-6 in Figur 3.
Claims (12)
- Umschaltdüsenkopf (1) für ein Hochdruckreinigungsgerät mit einer Flüssigkeitszufuhr (7) und mit einem im Umschaltdüsenkopf (1) beweglich gelagerten Umschaltkörper (8), der mehrere zu Düsenkörpern (19) führende Strömungsdurchlässe (18) aufweist, die durch Bewegung des Umschaltkörpers (8) einzeln mit der Flüssigkeitszufuhr (7) verbindbar sind, dadurch gekennzeichnet, daß einer der Strömungsdurchlässe (18) zu zwei Düsenkörpern (19) führt und eine Wahleinrichtung mit einem im Strömungsdurchlaß (18) frei beweglichen Ventilkörper (21) aufweist, mit dem jeweils eine Strömungsverbindung zwischen dem Strömungsdurchlaß (18) und den Düsenkörpern (19) verschließbar ist.
- Düsenkopf nach Anspruch 1, dadurch gekennzeichnet, daß in dem Strömungsdurchlaß (18) ohne Wahleinrichtung ein Düsenkörper (19) für Chemikalienabgabe und in den Strömungsdurchlässen (18) mit Wahleinrichtung ein Düsenkörper (19) für einen Kompaktstrahl und ein Düsenkörper (19) für einen Flachstrahl angeordnet sind.
- Düsenkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Ventilkörper (21) eine Kugel ist.
- Düsenkopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Umschaltkörper (8) im Umschaltdüsenkopf (1) verdrehbar gelagert ist, daß die Strömungskanäle (18) und die Flüssigkeitszufuhr (7) von der Drehachse jeweils den gleichen Abstand einnehmen und daß die Strömungskanäle (18) in dem Umschaltkörper (8) in Umfangsrichtung versetzt sind.
- Düsenkopf nach Anspruch 4, dadurch gekennzeichnet, daß der Strömungsdurchlaß (18) mit Wahleinrichtung sich über einen größeren Umfangswinkelbereich erstreckt.
- Düsenkopf nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Strömungsdurchlaß (18) mit Wahleinrichtung eine Aufnahmekammer (20) für den Ventilkörper (21) aufweist, aus der zu den Düsenkörpern (19) führende Kanäle austreten.
- Düsenkopf nach Anspruch 6, dadurch gekennzeichnet, daß in diese Kanäle Gleichrichter (22) eingesetzt sind.
- Düsenkopf nach Anspruch 7, dadurch gekennzeichnet, daß die Gleichrichter (22) Rohrstücke (23) sind, die über einen Teil ihrer Länge achsparallele Leitwände (25) umschließen.
- Düsenkopf nach Anspruch 8, dadurch gekennzeichnet, daß sich die Leitwände (25) an der Einströmseite der Rohrstücke (23) etwa über die halbe Länge derselben erstrecken.
- Düsenkopf nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Gleichrichter (22) die gesamte Länge der Kanäle zwischen Aufnahmekammer (20) und Düsenkörper (19) einnehmen.
- Düsenkopf nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß die Gleichrichter (22) an ihrem Einströmende einen Ventilsitz (24) für den in der Aufnahmekammer (20) angeordneten Ventilkörper (21) bilden.
- Düsenkopf nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, daß der Gleichrichter (22) in dem Kanal im Preßsitz gehalten ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19926381A DE19926381C1 (de) | 1999-06-10 | 1999-06-10 | Umschaltdüsenkopf für ein Hochdruckreinigungsgerät |
DE19926381 | 1999-06-10 | ||
PCT/EP2000/002408 WO2000076671A1 (de) | 1999-06-10 | 2000-03-17 | Umschaltdüsenkopf für ein hochdruckreinigungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196248A1 EP1196248A1 (de) | 2002-04-17 |
EP1196248B1 true EP1196248B1 (de) | 2003-09-17 |
Family
ID=7910735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000909365 Expired - Lifetime EP1196248B1 (de) | 1999-06-10 | 2000-03-17 | Umschaltdüsenkopf für ein hochdruckreinigungsgerät |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1196248B1 (de) |
AT (1) | ATE249888T1 (de) |
DE (1) | DE19926381C1 (de) |
DK (1) | DK1196248T3 (de) |
WO (1) | WO2000076671A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3774185B2 (ja) | 2002-10-25 | 2006-05-10 | フジビーシー技研株式会社 | 流体機器 |
US8640973B2 (en) | 2006-09-07 | 2014-02-04 | Briggs And Stratton Corporation | Pressure washer wand having a nozzle selector |
PL3833490T3 (pl) * | 2018-08-09 | 2023-01-23 | Alfred Kärcher SE & Co. KG | Głowica do czyszczenia powierzchni |
DE102019108512A1 (de) * | 2019-04-02 | 2020-10-08 | Ecoclean Gmbh | Umschaltvorrichtung für Hochdruckwerkzeuge und Reinigungsvorrichtung mit einer derartigen Umschaltvorrichtung |
CN112024155B (zh) * | 2020-09-09 | 2021-06-29 | 深圳市上佳汽车维修工具有限公司 | 一种切换式喷嘴 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB600855A (en) * | 1945-09-03 | 1948-04-21 | Crossland & Wood Ltd | Improvements relating to horticultural and like syringe or hose attachments |
GB397943A (en) * | 1932-03-12 | 1933-09-07 | Alfred William French | Improvements in spraying apparatus |
DE7813438U1 (de) * | 1978-05-03 | 1978-09-14 | Kraenzle, Josef, 7918 Illertissen | Mehrfachduesenkopf |
DE3239009C2 (de) * | 1982-10-21 | 1984-10-31 | Lechler Gmbh & Co Kg, 7012 Fellbach | Mehrfachdüsenkopf |
DE8715909U1 (de) * | 1987-12-01 | 1988-07-07 | WAP Reinigungssysteme GmbH & Co, 7919 Bellenberg | Spritzkopf mit Düseneinsatz |
DE8914112U1 (de) * | 1989-11-30 | 1990-01-18 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Wechseldüse für ein Hochdruckreinigungsgerät |
-
1999
- 1999-06-10 DE DE19926381A patent/DE19926381C1/de not_active Expired - Lifetime
-
2000
- 2000-03-17 EP EP20000909365 patent/EP1196248B1/de not_active Expired - Lifetime
- 2000-03-17 AT AT00909365T patent/ATE249888T1/de not_active IP Right Cessation
- 2000-03-17 WO PCT/EP2000/002408 patent/WO2000076671A1/de active IP Right Grant
- 2000-03-17 DK DK00909365T patent/DK1196248T3/da active
Also Published As
Publication number | Publication date |
---|---|
ATE249888T1 (de) | 2003-10-15 |
WO2000076671A1 (de) | 2000-12-21 |
DK1196248T3 (da) | 2003-10-20 |
EP1196248A1 (de) | 2002-04-17 |
DE19926381C1 (de) | 2000-11-30 |
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