EP1569755B1 - Ensemble buse concu pour un appareil de nettoyage haute pression - Google Patents

Ensemble buse concu pour un appareil de nettoyage haute pression Download PDF

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Publication number
EP1569755B1
EP1569755B1 EP03779910A EP03779910A EP1569755B1 EP 1569755 B1 EP1569755 B1 EP 1569755B1 EP 03779910 A EP03779910 A EP 03779910A EP 03779910 A EP03779910 A EP 03779910A EP 1569755 B1 EP1569755 B1 EP 1569755B1
Authority
EP
European Patent Office
Prior art keywords
pressure nozzle
nozzle
pressure
sealing
low
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
Application number
EP03779910A
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German (de)
English (en)
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EP1569755A1 (fr
Inventor
Thomas Hofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
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Alfred Kaercher SE and Co KG
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Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP1569755A1 publication Critical patent/EP1569755A1/fr
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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
    • 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
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray

Definitions

  • the invention relates to a nozzle assembly for a high-pressure cleaner or a similar device with a low-pressure nozzle, arranged in this high-pressure nozzle, with a jet pipe carrying a insertable into the high pressure nozzle seal, with a high pressure nozzle bypassing, leading to the low pressure nozzle bypass path and with displacement means, which change the distance between the sealing nozzle and the high pressure nozzle such that in a high pressure position of the sealing nozzle sealingly abuts the high pressure nozzle and thereby breaks the connection from the jet pipe to the bypass path, while in a low pressure position of the sealing nozzle is removed from the high pressure nozzle and thereby the connection from the jet pipe to Bypass path releases.
  • high-pressure cleaners there are various known constructions to selectively deliver via a jet pipe conveyed by the high-pressure cleaning device via a high-pressure nozzle, a low-pressure nozzle or a combination of two nozzles, so that the properties of the jet between the high pressure jet and low pressure jet can be adjusted substantially continuously.
  • a high-pressure nozzle a low-pressure nozzle or a combination of two nozzles
  • EP 0 146 795 it is known from EP 0 146 795, to keep the nozzles in a switching nozzle for high-pressure cleaning devices by the fluid pressure in the respective switching position.
  • the high-pressure nozzle insert is firmly connected to the jet pipe.
  • a one-piece nozzle body in which a central high-pressure nozzle opening and low-pressure nozzle openings arranged parallel thereto are provided.
  • the nozzle body can be moved relative to the feed pipe, this immersed in the advanced position in the high-pressure nozzle piece, the seal via O-ring seals on the plunging Zuflußstutzen.
  • a further nozzle arrangement in which a high-pressure and a low-pressure insert are displaced together, thereby releasing or closing bypass paths for the low-pressure jet.
  • the high-pressure and the low-pressure inserts must be mounted on the jet pipe via a thread and twisted for displacement relative to this.
  • EP-A-0 638 366 a generic nozzle arrangement for a high-pressure cleaning device is described, in which a sealing nozzle in an additional, leading to the high-pressure nozzle pipe piece can be inserted. This results in a relatively complicated and assembly-consuming construction.
  • the jet pipe carries a pot-shaped housing which surrounds the sealing nozzle and in which the low-pressure nozzle and the high-pressure nozzle sealed against the inner wall of the housing are mounted freely displaceable, and that the displacement means the low-pressure nozzle and move the high-pressure nozzle in the housing in the longitudinal direction against the sealing nozzle and away from it.
  • the jet pipe carries a cup-shaped housing, which serves as a bearing for the assembly of low-pressure nozzle and high pressure nozzle, this unit is simply inserted from the front into the housing and moved in this by the sliding movement more or less against the sealing nozzle.
  • This is possible in a simple manner, and also the assembly of such an arrangement is very simple, since only the assembly of high and low pressure nozzle must be inserted into the cup-shaped housing, in addition, only the displacement means must be set on the jet pipe, which is the assembly of low-pressure nozzle and high pressure nozzle in the cup-shaped housing shifts.
  • the low-pressure nozzle is secured by a rotation against rotation about the longitudinal axis of the housing.
  • the displacement means comprise a sleeve surrounding the pot-shaped housing, which is displaceable on the housing in the axial direction and thereby carries a low pressure nozzle more or less deeply into the housing einschiebende stop surface.
  • the sleeve can be rotatably mounted on the housing via a thread.
  • the sleeve is composed of two half-shells, which can be applied from both sides to the housing.
  • a further advantageous embodiment results when the high pressure nozzle is inserted from the back into the interior of the low pressure nozzle and if stop means are provided which limit the insertion depth of the high pressure nozzle in the low pressure nozzle.
  • the assembly of high pressure nozzle and low pressure nozzle is thus obtained simply by the fact that the high pressure nozzle is inserted from the back into the low pressure nozzle, in the retracted position it is held by the fluid pressure, special fixatives are not necessary.
  • the bypass path can be formed according to a preferred embodiment by longitudinal channels in the inner wall of the interior of the low-pressure nozzle, which are open to the interior and closed by the outer wall of the inserted high-pressure nozzle to the interior.
  • This also leads to a structurally very simple solution, only the longitudinal channels, which can be formed by longitudinal ribs on the inside of the interior, are sufficient to form together with the inserted high-pressure nozzle in the longitudinal direction extending flow channels for the bypass path.
  • the longitudinal channels can be connected via lateral openings in the wall of the low-pressure nozzle with the interior of the cup-shaped housing.
  • the high pressure nozzle is secured by a rotation against rotation about the longitudinal axis of the housing.
  • the sealing nozzle in the high pressure position at a sealing nozzle surrounding the sealing surface of the high pressure nozzle rests with an annular sealing portion which is elastically widened under the action of the pressure of the conveyed liquid and pressed sealingly against the surrounding sealing surface.
  • the inherent elasticity of the sealing portion is utilized to achieve sealing of the sealing nozzle against the interior of the high pressure nozzle when the high pressure nozzle is in the high pressure position. Additional sealant are not necessary, in particular O-ring seals can be omitted at this point. This also makes the structure of the overall arrangement very much easier.
  • this type of seal can also be used in other arrangements in which a seal between a jet pipe on the one hand and a nozzle body on the other hand must be made.
  • this type of seal can also be used when a generic nozzle assembly of the type described above is used, in which the high-pressure nozzle and low-pressure nozzle are formed differently and the switching from high-pressure nozzle to low-pressure nozzle takes place in another way.
  • the sealing portion consists of an elastically deformable plastic material. It is possible that the entire jet pipe is made in this way from the same plastic material.
  • the sealing portion has a reduced wall thickness in comparison to the wall thickness of the jet pipe.
  • the sealing portion is formed circular cylindrical.
  • the sealing surface of the high pressure nozzle is preferably formed circular cylindrical.
  • This narrowing in cross-section sealing area leads to a first seal between the sealing nozzle and the high-pressure nozzle when they are approaching each other.
  • This first seal can increase the pressure of the pumped liquid in the interior of the high-pressure nozzle, since the bypass path is largely closed. This pressure increase then leads to a complete seal by elastic expansion of the sealing portion.
  • the high pressure nozzle in the region of the sealing surface has a substantially lower elastic expandability than the sealing portion of the jet pipe.
  • the high-pressure nozzle in the region of the sealing surface may have an increased wall thickness in relation to the remaining wall regions.
  • the high-pressure nozzle at least in the region of the sealing surface, consists of a metal or a plastic of low extensibility, for example of brass or of a particularly tough polyamide.
  • the nozzle assembly shown in the drawing comprises a jet pipe 1, which carries at one end a terminal 2 in the form of a bayonet, with the the jet pipe 1 can be connected to a supply line, not shown in the drawing, which in turn is fed by a likewise not shown, known per se high-pressure cleaning device.
  • the jet pipe 1 is provided with a cup-shaped housing 3 arranged concentrically to the jet pipe, which has a closed bottom 4 toward the jet pipe and which is open on the opposite side.
  • the interior of the housing 3 has a substantially circular cylindrical cross-section whose diameter is greater than the diameter of the jet pipe.
  • the interior 5 of the jet pipe 1 is connected to a sealing nozzle 6 in connection, which protrudes in the center of the bottom 4 of this and carries at its free end a thin-walled, circular cylindrical sealing portion 7.
  • the adjoining the sealing portion 7 in the direction of the jet pipe 1 wall portion 8 has a substantially greater wall thickness than the sealing portion 7, this also applies to the jet pipe 1 in total.
  • This is also made of a small extent elastically deformable plastic material, such as polyphthalamide (PPA), polyphenylene sulfide (PPS), polyacrylic ether ketones (PEEK), polyamide (PA) or polyethylene terephthalate (PET).
  • PPA polyphthalamide
  • PES polyphenylene sulfide
  • PEEK polyacrylic ether ketones
  • PA polyamide
  • PET polyethylene terephthalate
  • the pot-shaped housing 3 On the outside, the pot-shaped housing 3 carries an external thread 9, which extends over the entire height of the housing 3, and at a small distance from the bottom 4 on the outside of the jet pipe 1 outwardly projecting stop elements 10 are formed.
  • a low-pressure nozzle 12 In the circular cylindrical interior 11 of the cup-shaped housing 3 from the open front side of a low-pressure nozzle 12 is inserted, which has a substantially circular cylindrical outer wall 13 whose outer diameter substantially corresponds to the inner diameter of the cylindrical interior 11 of the housing 3. In this area, the outer wall 13 carries in a circumferential groove 14, a ring seal 15, so that the low-pressure nozzle 12 is sealed against the inner wall of the housing 3.
  • the interior 16 of the low-pressure nozzle 12 is also circular-cylindrical, at the front, the jet pipe 1 facing away from the low-pressure nozzle 12, the interior 16 is closed like a dome and there has a larger outlet opening 17, while the interior 16 is open on the opposite side.
  • channels 18 In the inner wall extending in the longitudinal direction, open to the interior 16 through channels 18 are incorporated, which extend substantially the same over the entire length of the cylindrical interior to the dome-shaped end thereof.
  • These channels 18 end at their end facing the jet pipe 1 in radially outwardly directed openings 19, in the region of these openings 19, the outer diameter of the low-pressure nozzle 12 is slightly smaller than the inner diameter of the inner space 11 of the housing 3, so that in this area the inserted low-pressure nozzle 12 is surrounded by an annular gap 20 which is bounded on the one hand by the annular seal 15 and on the other hand by the bottom 4 of the housing 3.
  • This annular gap 20 is connected via the openings 19 with the channels 18 on the inside of the low-pressure nozzle 12 in connection.
  • a radially projecting flange 21 is formed on the low-pressure nozzle 12, which is outside the cup-shaped Housing 3 is arranged and has a larger outer diameter than the interior 11 of this housing.
  • a high-pressure nozzle 22 is inserted into this, which has a substantially circular cylindrical outer wall 23 whose outer diameter corresponds to the inner diameter of the inner space 16 of the low-pressure nozzle 12, so that when inserted high-pressure nozzle 22 this to the interior 16 of the low-pressure nozzle 12th towards open channels 18 closes (Figure 5).
  • the high-pressure nozzle 22 is closed at one end hood-shaped and has at this end an outlet opening 24 whose outlet cross section is smaller than the outlet cross section of the outlet opening 17 of the low pressure nozzle 12, on the opposite side of the high pressure nozzle 22 is open and extends there via a conical sealing step 25 and goes upstream of this sealing step 25 in a circular cylindrical sealing surface 26 via.
  • the insertion depth of the high-pressure nozzle 22 into the interior 16 of the low-pressure nozzle 12 is limited by an annular flange 27, which rests at fully inserted high-pressure nozzle 22 at the rear end of the low-pressure nozzle 12.
  • this annular flange 27 is flattened on opposite ends, the resulting flats 28 are covered by rear extensions 29 of the low-pressure nozzle 12, so that thereby the high-pressure nozzle 22 against rotation in the low-pressure nozzle 12 is received ( Figure 4).
  • the pot-shaped housing 3, the low-pressure nozzle 12 arranged therein and the high-pressure nozzle 22 inserted into it are of two half-shells 30 surrounded, which together form a sleeve 31 when they are connected to the other components surrounding each other, for example by screws.
  • the half-shells carry 30 threads 32 in the form of juxtaposed, inwardly projecting projections 33, these projections 33 dive into the threads of the external thread 9, so that upon rotation of the sleeve 31, this is displaced in the longitudinal direction of the jet pipe.
  • the two half shells 30 carry two inwardly projecting annular flanges 34 and 35, the front annular flange 34 rests against the outside of the flange 21, while the rear annular flange 35, the stop elements 10 of the jet pipe 1 engages behind.
  • the dimensioning is chosen so that the sleeve 31 is adjustable only over a relatively small angular range and thereby performs a displacement of only a few millimeters, this shift is once limited by the fact that the annular flange 35 abuts the stop elements 10, on the other hand, that the low-pressure nozzle 12 can not be pushed further into the housing 3.
  • the sleeve 31 In a first position, hereinafter referred to as the low pressure position, the sleeve 31 is rotated so that it abuts with the annular flange 35 on the stop elements 10, the low pressure nozzle 12 and the high pressure nozzle 22 received therein can in this position of the sleeve 31 under the effect the conveyed through the jet pipe 1, highly pressurized liquid maximally pushed out of the housing 3, so that between the sealing nozzle 6 and the sealing surface 26 of the high-pressure nozzle 22 remains a gap through which the liquid emerging from the jet pipe 1 into the annular gap 20th can occur.
  • the liquid thus stand two Flow paths available, namely, a first flow path through the high pressure nozzle 22 through to the outlet port 24, and a second flow path through the annular gap 20, the openings 19 and the channels 18 to the outlet port 17 of the low-pressure nozzle 12. Due to the relatively large outlet cross-section of the two outlet openings occurs Liquid with a relatively low pressure.
  • the sleeve 31 In the other end position, which is referred to below as the high-pressure position, the sleeve 31 is rotated so far that the low-pressure nozzle 12 and thus also the high-pressure nozzle 22 received therein are pushed into the housing 3 via the annular flange 34 to the maximum extent.
  • the sealing nozzle 6 enters with its sealing portion 7 in the open end of the high pressure nozzle 22 and initially applies to the conical sealing step 25, so that the flow connection to the annular gap 20 is interrupted, but may not be complete without interposition of a seal.
  • this seal is sufficient to increase the pressure in the interior of the high pressure nozzle 22, and this pressure increase causes the circular cylindrical, thin-walled sealing portion 7 is pressed elastically outwards, he puts himself sealingly against the surrounding sealing surface 26 of the high-pressure nozzle 22 , And in this way, a complete seal that does not require the interposition of a sealing ring and also easily compensates for manufacturing tolerances.
  • the liquid can thus escape only through the high pressure nozzle 22 and the outlet opening 24, the outlet cross section of the outlet opening 24 is relatively low, the outgoing jet is thus a high-pressure jet.
  • any intermediate positions are possible in which a more or less large part of the outflowing liquid is discharged through the annular gap 20 and the channels 18 through the outlet port 17.
  • the structure of the arrangement described is very simple, in particular, this results in great advantages during assembly.
  • it is sufficient to first push the high-pressure nozzle 22 into the interior 16 of the low-pressure nozzle 12, while neither a tool is necessary nor seals are needed.
  • the low pressure nozzle 12 is inserted from the front into the housing 3, here the seal is ensured by only one ring seal.
  • This arrangement is then surrounded by the two half-shells 30, which are applied from the outside to the housing 3 and connected to each other. Further assembly steps are not necessary, and also the number of used items is extremely low.

Claims (18)

  1. Ensemble de buses pour un appareil de nettoyage à haute pression ou un appareil similaire, comportant une buse basse pression (12), une buse haute pression (22), agencée dans cette dernière, un tube de projection (1) qui porte un manchon d'étanchéité (6) destiné à être introduit dans la buse haute pression (22), une voie de dérivation, contournant la buse haute pression (22) et menant vers la buse basse pression (12), et des moyens de coulissement (31) qui font varier la distance entre le manchon d'étanchéité (6) et la buse haute pression (22), de telle sorte que, dans une position de haute pression, le manchon d'étanchéité (6) est en appui étanche contre la buse haute pression (22) et, de ce fait, interrompt la liaison depuis le tube de projection (1) vers la voie de dérivation, alors que dans une position de basse pression, le manchon d'étanchéité (6) est éloigné de la buse haute pression (22) et, de ce fait, libère la liaison depuis le tube de projection (1) vers la voie de dérivation, caractérisé en ce que le tube de projection (1) porte un boîtier (3) en forme de godet, qui entoure le manchon d'étanchéité (6) et dans lequel la buse basse pression (12) et la buse haute pression (22) sont logées de manière librement mobile et étanches par rapport à la paroi intérieure du boîtier (3), et en ce que les moyens de coulissement (31) font coulisser la buse basse pression (12) et la buse haute pression (22) dans le boîtier (3) dans le sens longitudinal de celui-ci vers le manchon d'étanchéité (6) et en s'écartant de celui-ci.
  2. Ensemble de buses selon la revendication 1, caractérisé en ce que la buse basse pression (12) est immobilisée en rotation autour de l'axe longitudinal du boîtier (3) par un dispositif anti-rotation.
  3. Ensemble de buses selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de coulissement comportent une gaine (31), qui entoure le boîtier (3) en forme de godet et qui est mobile dans le sens longitudinal sur le boîtier (3) et porte, en outre, une surface de butée (34) faisant coulisser la buse basse pression (12) plus ou moins profondément dans le boîtier (3).
  4. Ensemble de buses selon la revendication 3, caractérisé en ce que la gaine (31) est montée rotative sur le boîtier (3) au moyen d'un filetage (9, 32).
  5. Ensemble de buses selon l'une quelconque des revendications précédentes, caractérisé en ce que la buse haute pression (22) est introduite par le côté arrière dans l'espace intérieur (16) de la buse basse pression (12) et en ce qu'il est prévu des moyens de butée (27) qui limitent la profondeur d'introduction de la buse haute pression (22) dans la buse basse pression (12).
  6. Ensemble de buses selon la revendication 5, caractérisé en ce que la voie de dérivation est formée par des canaux longitudinaux (18) dans la paroi intérieure de l'espace intérieur (16) de la buse basse pression (12), lesquels sont ouverts vers l'espace intérieur (16) et sont fermés vers l'espace intérieur (16) par la paroi extérieure (23) de la buse haute pression (22) introduite.
  7. Ensemble de buses selon la revendication 6, caractérisé en ce que les canaux longitudinaux (18) communiquent avec l'espace intérieur (11) du boîtier (3) en forme de godet, par l'intermédiaire d'orifices latéraux (19) dans la paroi de la buse basse pression (12).
  8. Ensemble de buses selon l'une quelconque des revendications 5 à 7, caractérisé en ce que la buse haute pression (22) est immobilisée en rotation autour de l'axe longitudinal du boîtier (3) par l'intermédiaire d'un dispositif anti-rotation (28, 29).
  9. Ensemble de buses selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans la position de haute pression, le manchon d'étanchéité (6) est en appui avec un tronçon d'étanchéité (7) annulaire contre une surface d'étanchéité (26) de la buse haute pression (22), qui entoure le manchon d'étanchéité (7), lequel tronçon d'étanchéité s'élargit élastiquement sous l'effet de la pression du liquide acheminé et est poussé de manière étanche contre la surface d'étanchéité (26) l'entourant.
  10. Ensemble de buses selon la revendication 9, caractérisé en ce qu'au moins le tronçon d'étanchéité (7) est réalisé dans une matière plastique élastiquement déformable.
  11. Ensemble de buses selon la revendication 9 ou 10, caractérisé en ce que le tronçon d'étanchéité (7) a une épaisseur de paroi réduite par rapport à l'épaisseur de paroi du tube de projection (1).
  12. Ensemble de buses selon l'une quelconque des revendications 9 à 11, caractérisé en ce que le tronçon d'étanchéité (7) est cylindrique circulaire.
  13. Ensemble de buses selon l'une quelconque des revendications 9 à 12, caractérisé en ce que la surface d'étanchéité (26) de la buse haute pression (22) est cylindrique circulaire.
  14. Ensemble de buses selon l'une quelconque des revendications 9 à 13, caractérisé en ce que la surface d'étanchéité (26) de la buse haute pression (22) est prolongée dans la direction du flux par une zone d'étanchéité (25) dont la section se rétrécit.
  15. Ensemble de buses selon la revendication 14, caractérisé en ce que la zone d'étanchéité (25), dont la section se rétrécit, est conique.
  16. Ensemble de buses selon l'une quelconque des revendications 9 à 15, caractérisé en ce que la buse haute pression (22), dans la zone de la surface d'étanchéité (26), a une extensibilité élastique nettement plus faible que le tronçon d'étanchéité (7) du tube de projection (1).
  17. Ensemble de buses selon la revendication 16, caractérisé en ce que la buse haute pression (22), dans la zone de la surface d'étanchéité (26), a une épaisseur de paroi plus grande par rapport aux autres zones de la paroi.
  18. Ensemble de buses selon la revendication 16 ou 17, caractérisé en ce que la buse haute pression (22), au moins dans la zone de la surface d'étanchéité (26), est réalisée en métal ou dans une matière plastique de faible extensibilité.
EP03779910A 2002-12-11 2003-11-13 Ensemble buse concu pour un appareil de nettoyage haute pression Expired - Lifetime EP1569755B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10257783 2002-12-11
DE10257783A DE10257783B3 (de) 2002-12-11 2002-12-11 Düsenanordnung für ein Hochdruckreinigungsgerät
PCT/EP2003/012687 WO2004052548A1 (fr) 2002-12-11 2003-11-13 Ensemble buse conçu pour un appareil de nettoyage haute pression

Publications (2)

Publication Number Publication Date
EP1569755A1 EP1569755A1 (fr) 2005-09-07
EP1569755B1 true EP1569755B1 (fr) 2006-07-05

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Application Number Title Priority Date Filing Date
EP03779910A Expired - Lifetime EP1569755B1 (fr) 2002-12-11 2003-11-13 Ensemble buse concu pour un appareil de nettoyage haute pression

Country Status (9)

Country Link
US (1) US7360721B2 (fr)
EP (1) EP1569755B1 (fr)
CN (1) CN100431712C (fr)
AT (1) ATE332191T1 (fr)
AU (1) AU2003288048A1 (fr)
CA (1) CA2508981A1 (fr)
DE (2) DE10257783B3 (fr)
ES (1) ES2268453T3 (fr)
WO (1) WO2004052548A1 (fr)

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HUE041634T2 (hu) * 2014-10-02 2019-05-28 Kaercher Alfred Se & Co Kg Szelepelrendezés folyadékok számára
CN104492620B (zh) * 2014-12-16 2017-08-25 江苏苏美达五金工具有限公司 一种用于高压清洗设备的高低压喷嘴组件
CN104984841B (zh) * 2015-07-16 2017-05-31 江苏大学 一种喷洒形式可变的微喷头
CN108014935B (zh) * 2017-11-08 2019-12-27 江苏苏美达五金工具有限公司 一种压力线性调节组合喷嘴及高压清洗设备
CN107913808B (zh) * 2017-11-08 2019-09-10 江苏苏美达五金工具有限公司 一种防滴漏高低压组合喷嘴及高压清洗设备
CN108787193A (zh) * 2018-08-30 2018-11-13 苏州小科清洁科技有限公司 一种高压清洗机的喷嘴及喷嘴装置
ES1247064Y (es) 2020-03-25 2020-08-27 Istobal Sa Boquilla de conmutacion automatica
CN114453320A (zh) * 2022-02-25 2022-05-10 明士新材料有限公司 一种可视高压清洗装置
CN116271647B (zh) * 2023-04-23 2023-09-19 平顶山浩泰化工有限公司 一种化工管路消防泡沫快速供应装置

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DK172650B1 (da) * 1995-04-21 1999-04-06 Kew Ind As Sprøjtedyse til højtryksrensere
IT1294939B1 (it) * 1997-07-31 1999-04-23 Arrow Line Srl Lancia doppia di lavaggio a comando assiale
EP1254719A1 (fr) * 2001-05-03 2002-11-06 Nilfisk-Advance A/S Dispositif de décharge pour un appareil de nettoyage haute pression

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CN100431712C (zh) 2008-11-12
WO2004052548A1 (fr) 2004-06-24
DE50304166D1 (de) 2006-08-17
ES2268453T3 (es) 2007-03-16
US20050263623A1 (en) 2005-12-01
AU2003288048A1 (en) 2004-06-30
CN1726085A (zh) 2006-01-25
ATE332191T1 (de) 2006-07-15
DE10257783B3 (de) 2004-03-18
EP1569755A1 (fr) 2005-09-07
CA2508981A1 (fr) 2004-06-24
US7360721B2 (en) 2008-04-22

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