EP0482561B1 - Pulvérisateur à compression - Google Patents

Pulvérisateur à compression Download PDF

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Publication number
EP0482561B1
EP0482561B1 EP91117938A EP91117938A EP0482561B1 EP 0482561 B1 EP0482561 B1 EP 0482561B1 EP 91117938 A EP91117938 A EP 91117938A EP 91117938 A EP91117938 A EP 91117938A EP 0482561 B1 EP0482561 B1 EP 0482561B1
Authority
EP
European Patent Office
Prior art keywords
pressurized
pressure
valve
chamber
piston element
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
EP91117938A
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German (de)
English (en)
Other versions
EP0482561A1 (fr
Inventor
Karl Kläger
Karl-Heinz Kläger
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.)
Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0482561A1 publication Critical patent/EP0482561A1/fr
Application granted granted Critical
Publication of EP0482561B1 publication Critical patent/EP0482561B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump
    • B05B9/0822—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump a discharge device being fixed to the container

Definitions

  • the invention relates to a pressure atomizer with an airtight sealable by a spray head pressure container according to the type specified by the preamble of claim 1.
  • the spray head 1 is screwed to the pressure vessel 3 via a screw cap 2 formed in one piece.
  • the spray head 1 has an atomizing nozzle 4 which can be manipulated by means of a release lever 5 in order to expel a fluid with which the pressure container 3 is filled when the spray head 1 is unscrewed, under the action of an overpressure reproducibly generated in the pressure container.
  • the generation of the excess pressure in the pressure vessel is made possible in the known pressure atomizers by means of an integrated piston air pump 6.
  • the piston air pump is formed with a cylinder tube 7 and with a piston part 9 which can be moved along this cylinder tube by means of a piston rod 8 and which seals a pressure chamber 11 of the cylinder tube against an air channel 12 with a piston ring 10.
  • the piston part 9 screwed directly to the piston rod 8 accommodates the valve piece 13 of a safety valve in an axial bore designed as a spring chamber, which is biased by a compression spring 14 arranged in the spring chamber against the pump pressure generated in the pressure chamber 11 during the pressure stroke of the piston air pump.
  • This pump pressure is passed through a filling pressure check valve 15 arranged at the end of the cylinder tube 7 into the pressure vessel 3 until it is in the pressure vessel has set a predetermined positive pressure. If this predetermined overpressure is reached, then with each further actuation of the piston air pump a pressure limitation is obtained through the intermediary of the safety valve, in which case the valve piece 13 releases a connection of the pressure chamber 11 via a connection opening 16 of the piston part 9 to the air duct 12, which via a a guide bushing for the piston rod 8 formed ventilation bore 17 is vented.
  • the release lever 5 coupled to the atomizing nozzle 4 is actuated, then the fluid filled in the pressure container is pressed under the influence of the excess pressure into a suction hose 18 and expelled when the atomizing nozzle is open.
  • the invention characterized by the claims solves the problem of designing a pressure atomizer of the type specified in such a way that the reproducible generation of the excess pressure in the pressure vessel is also possible with the connection of a pressure source external to the vessel.
  • the advantages that can be achieved with the pressure atomizer according to the invention are essentially that, with the possibility of maintaining the design principle of an integrated piston air pump, an application area that is particularly interesting for larger pressure vessels with a correspondingly larger filling volume is now opened wherever pressure sources to be used for a container connection are available stand. Compressed air and other pressure media can also be used to generate the excess pressure, in that the pressure atomizer has a design of its valve device for this purpose, which enables a simple and at the same time optimal adaptation to the most varied specifications on the production side and ensures uncomplicated handling on the user side.
  • the design of the pressure atomizer according to the invention to enable retrofitting between an atomizer with an integrated piston air pump and a connection option for a pressure source external to the container and an embodiment for which only the connection option to such a pressure source external to the container is provided, with only a few spare parts.
  • the particular advantage for both variants can still be seen in the possibility that the previously known embodiment of such a pressure atomizer with only one integrated piston air pump requires only minimal adaptations so that this embodiment can also be kept unchanged with further spare parts .
  • the pressure atomizer shown in FIG. 1 with an integrated piston air pump has the known design described in more detail in the introduction. It can be assumed that with a container volume of, for example, 1.5 liters, the pressure container 3 should have a maximum filling volume of approximately 1.3 liters, in order to ensure uniform, constant atomization of the filled fluid under an excess pressure of approximately 4 bar that can be produced with the integrated piston air pump to reach.
  • the fineness of the atomization which is obtained with the atomizer nozzle 4 after being released by the release lever 5 of the spray head 1, can be regulated with a nozzle nut 19 which is screwed onto the end of the atomizer tube 20.
  • the known design principle with an integrated piston air pump is essentially only with one exception Maintain unchanged that a modified valve device 21 of the design shown in FIG. 5 is used for an additional connection possibility of a pressure source external to the container for generating the excess pressure in the pressure container 3.
  • the components adopted from the known pressure atomizer which are therefore designated by the same reference numerals, are, in addition to the pressure vessel 3 and the spray head 1 screwed to the atomizer nozzle 4, the cylinder tube 7 with the filling pressure check valve 15 at its end projecting into the pressure vessel.
  • the valve device 21 also uses a piston part 22, which is coaxial with the cylinder tube 7, but of a modified design, which is provided in accordance with the arrangement of a comparable valve piece 23, which is biased by a compression spring 25 accommodated in a first spring chamber 24 against the pressure in the Pressure stroke of the piston air pump is also generated in accordance with a pressure chamber 26.
  • FIG. 2 shows the position of the piston part 22 at the beginning of the suction stroke, also taken into account for the representation of FIG. 5, during which the pressure chamber 26 experiences the increase in volume that can be derived from the comparison of FIG. 3, during this increase in volume via the central ventilation bore 17 of the spray head 1 and air is drawn into the pressure chamber 26 with a flow around the piston ring 10 via the air duct 12.
  • the amount of air sucked into the pressure chamber 26, on the other hand, is compressed to a higher pressure value during the pressure stroke of the piston air pump, that is to say when the piston part 22 is moved from the position shown in FIG. 3 along the cylinder tube 7 to the position shown in FIG. 2 by the pressure chamber 26 through the piston ring 10 the air duct 12 is sealed.
  • the opening pressure for the filling pressure check valve 15 is reached in the pressure chamber 26, the amount of air trapped in the pressure chamber is pushed out into the pressure vessel 3.
  • the filling pressure check valve 15 is closed again.
  • the spring chamber 24 provided for receiving the compression spring 25 for the valve piece 23 of the overpressure safety valve 28 is offset in relation to the piston part 22.
  • the spring chamber 24 is enlarged by a tubular extension 29 of the piston part 22 protruding into the pressure chamber 26, with which a valve cap 30 receiving the valve piece 23 is screwed.
  • the valve seat for the valve piece 23 is formed with a central bore 31 in the valve cap 30.
  • a second spring chamber 32 is formed coaxially to the piston part, which receives a second pressure spring 33 with which a second valve piece 34 of a second filling pressure check valve 35 is pretensioned.
  • the valve seat for this second valve piece 34 is formed with a sleeve-shaped connecting piece 36 screwed to the piston part 22, which provides a connection possibility for an extension tube 37.
  • the second spring chamber 32 is connected to the pressure chamber 26 via an axially parallel connection bore 38, so that whenever the second valve piece 34 is pushed away from its valve seat against the force of the second pressure spring 33, there is a direct pressure connection to the pressure vessel 3, as soon as the first filling pressure check valve 15 is opened with the pressure generated in the pressure chamber 26.
  • the piston rod of the integrated piston air pump which is axially guided in the central ventilation bore 17 of the spray head 1, is formed with the extension tube 37.
  • the extension tube 37, or the piston rod thus formed for moving the piston part 22 along the cylinder tube 27, is provided with a handle part 39 which has a connecting nipple 40 for a pressure source external to the container. If, for example, compressed air is fed via this connecting nipple 40 into the extension tube 37 screwed to the connecting piece 36 of the piston part 22, then the second filling pressure check valve 35 is opened and, with the intermediary of the pressure chamber 26, the first filling pressure check valve 15, which is connected to the in the pressure vessel 3 protruding end of the cylinder tube 7 is arranged.
  • a direct connection of a connecting nipple 41 to the connecting piece 36 of the otherwise identical valve device 21 is provided.
  • the connecting nipple 41 like the connecting nipple 40 of the pressure atomizer according to FIG. 2, is again provided for the connection possibility of a pressure source external to the container, in order to be able to reproducibly generate an excess pressure of a desired size by means of the valve device 21 in the pressure container 3.
  • the integration of an additional piston air pump is dispensed with.
  • the maximum overall length of the cylinder tube 7, which is only required for incorporating the piston air pump for a corresponding enlargement of the pressure chamber, can thus be reduced to a minimum value, in order to prevent the first filling pressure check valve 15 from being immersed in the filling quantity of the pressure container.

Landscapes

  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Reciprocating Pumps (AREA)

Claims (7)

  1. Pulvérisateur à haute pression, comprenant un réservoir soumis à pression (3) fermable hermétiquement par un élément atomiseur de tête (1), qui est rempli d'un fluide, lequel on peut chasser à travers une buse d'atomisation (4) dudit élément atomiseur de tête, qui est maniable moyennant un levier de relâchement, par une surpression qui est établie, de façon constante, dans ledit réservoir sous à pression par médiation d'un dispositif à soupapes, ledit dispositif à soupapes étant équipé d'un clapet de non-retour de la pression de remplissage (15) à l'extrémité d'un tuyau cylindrique (7), qui fait saillie dans ledit réservoir soumis à pression, et d'une soupape de sûreté de surpression (28) à un élément de piston (22) coaxial par rapport audit tuyau cylindrique, et servant à boucher une chambre à pression (26), commune aux lesdites deux soupapes, dudit tuyau cylindrique, par rapport un canal d'air raccordé à une canalisation d'air (17) de l'élément atomiseur de tête, dans lequel canal débouche une ouverture de raccordement d'une première chambre à ressort (24) dudit élément de piston, à recevoir un premier ressort de pression (25) qui met un premier élément de soupape (23) de ladite soupape de sûreté (28) en précontrainte dans le sens opposé à la pression qui règne dans ladite chambre à pression (26), l'ouverture des deux soupapes étant commandée par la pression établie dans ladite chambre à pression,
    caractérisé en ce qu'un canal à pression débouche dans ladite chambre à pression (26) dudit tuyau cylindrique (7), qui est prévu pour un raccordement à une source de pression externe et qui est isolé de ladite chambre à pression-par un deuxième clapet de non-retour de la pression de remplissage (35) dudit dispositif à soupapes, lequel clapet de non-re tour comprend un deuxième élément de soupape (34) mis en précontrainte par une deuxième ressort de pression (33) dans le sens opposé à la pression d'alimentation de cette source de pression.
  2. Dispositif de commande de soupape selon la revendication 1,
    caractérisé en ce qu'une longueur partielle dudit canal à pression est formée dans ledit élément de piston (22) et élargie à former une deuxième chambre à ressort (32) qui reçoit ledit deuxième ressort de pression (33), et en ce que ledit deuxième élément de soupape (34) est retenu par une pièce de raccordement (36), sous forme de douille, reliée à ladite deuxième chambre à ressort par ledit élément de piston.
  3. Pulvérisateur à haute pression selon la revendication 2,
    caractérisé en ce que ladite deuxième chambre à ressort (32) est configurée à être coaxiale par rapport audit élément de piston (22), et débouche dans ladite chambre à pression (26) par un alésage de raccordement (38) dudit élément de piston, en déport axial.
  4. Pulvérisateur à haute pression selon la revendication 2 ou 3,
    caractérisé en ce que ladite première chambre à ressort (24) oomprend une formation en déport axial par rapport à ladite deuxième chambre à ressort (32), qui est disposée dans la face dudit élément de piston (22) en opposition axiale à ladite deuxième chambre à ressort, et qui débouche dans la chambre à pression (26) dudit tuyau cylindrique par un élément de rallonge tubulaire (29) dudit élément de piston, auquel est relié un chapeau de soupape (30) qui reçoit ledit premier élément de soupape.
  5. Pulvérisateur à haute pression selon une quelconque des revendications 1 à 4,
    caractérisé en ce qu'un raccord fileté (41) pour le raccordement de ladite source de pression externe est relié à ladite pièce de raccordement (36) dudit élément de piston (22), qui est coaxial par rapport à ladite canalisation d'air (17) de l'élément atomiseur de tête (1).
  6. Pulvérisateur à haute pression selon une quelconque des revendications 1 à 4,
    caractérisé en ce qu'un tuyau de rallonge (37) est relié à ladite pièce raccordement (36) dudit élément de piston (22), qui s'étend axialement dans ladite canalisation d'air (17) de l'élément atomiseur de tête (1), ledit élément de piston étant mobile, moyennant ledit tuyau de rallonge, le long dudit tuyau cylindrique pour former une pompe à air à piston pour engendre une pression de pompage à établir la surpression dans ledit réservoir soumis à pression.
  7. Pulvérisateur à haute pression selon la revendication 6,
    caractérisé en ce que ledit tuyau de rallonge (37) est formé à avoir un élément manche (39) qui comprend un raccord fileté (40) pour le raccordement de ladite source de pression externe.
EP91117938A 1990-10-26 1991-10-21 Pulvérisateur à compression Expired - Lifetime EP0482561B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4034156A DE4034156C2 (de) 1990-10-26 1990-10-26 Druckzerstäuber
DE4034156 1990-10-26

Publications (2)

Publication Number Publication Date
EP0482561A1 EP0482561A1 (fr) 1992-04-29
EP0482561B1 true EP0482561B1 (fr) 1994-06-29

Family

ID=6417141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117938A Expired - Lifetime EP0482561B1 (fr) 1990-10-26 1991-10-21 Pulvérisateur à compression

Country Status (2)

Country Link
EP (1) EP0482561B1 (fr)
DE (2) DE4034156C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134003A1 (de) 2022-12-20 2024-06-20 Kläger Plastik GmbH Zerstäuber und Sicherungsvorrichtung für einen solchen Zerstäuber
DE102022134020A1 (de) 2022-12-20 2024-06-20 Kläger Plastik GmbH Zerstäuber und Pumpeinrichtung für einen solchen Zerstäuber

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9217250U1 (de) * 1992-12-17 1993-02-11 Wella Ag, 6100 Darmstadt Flüssigkeitssprüh- oder Schaumabgabevorrichtung
AU7458494A (en) * 1993-07-23 1995-02-20 Unilever Plc Aerosol dispensing device
DE29716633U1 (de) 1997-09-16 1997-11-06 I.T. Chemisch-technische Produkte GmbH, 69207 Sandhausen Tropffreie Luftzerstäuberdüse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1497594A (fr) * 1966-08-30 1967-10-13 T E C N O M A Perfectionnements apportés aux pulvérisateurs comportant une pompe à air
US4154401A (en) * 1977-11-21 1979-05-15 Thompson William E Spray unit and pressurizing adapter therefor
US4537334A (en) * 1983-07-18 1985-08-27 Tolco Corporation Portable pressure sprayer
DE8420572U1 (de) * 1984-07-10 1984-10-11 Kühbauch, Adam, 7410 Reutlingen Tragbares druckspruehgeraet

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134003A1 (de) 2022-12-20 2024-06-20 Kläger Plastik GmbH Zerstäuber und Sicherungsvorrichtung für einen solchen Zerstäuber
DE102022134020A1 (de) 2022-12-20 2024-06-20 Kläger Plastik GmbH Zerstäuber und Pumpeinrichtung für einen solchen Zerstäuber
WO2024133534A1 (fr) 2022-12-20 2024-06-27 Kläger Plastik GmbH Atomiseur et dispositif de pompe pour un tel atomiseur

Also Published As

Publication number Publication date
DE59102069D1 (de) 1994-08-04
EP0482561A1 (fr) 1992-04-29
DE4034156C2 (de) 1994-01-20
DE4034156A1 (de) 1992-04-30

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