EP1491123B1 - Pompe de distribution de produit fluide - Google Patents

Pompe de distribution de produit fluide Download PDF

Info

Publication number
EP1491123B1
EP1491123B1 EP03014345A EP03014345A EP1491123B1 EP 1491123 B1 EP1491123 B1 EP 1491123B1 EP 03014345 A EP03014345 A EP 03014345A EP 03014345 A EP03014345 A EP 03014345A EP 1491123 B1 EP1491123 B1 EP 1491123B1
Authority
EP
European Patent Office
Prior art keywords
piston
cap
pump
chamber
pump according
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
EP03014345A
Other languages
German (de)
English (en)
Other versions
EP1491123A1 (fr
Inventor
Peter Piepenstock
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.)
Werkzeugbau Friedhelm Piepenstock GmbH
Original Assignee
Werkzeugbau Friedhelm Piepenstock GmbH
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 Werkzeugbau Friedhelm Piepenstock GmbH filed Critical Werkzeugbau Friedhelm Piepenstock GmbH
Priority to AT03014345T priority Critical patent/ATE308265T1/de
Priority to EP03014345A priority patent/EP1491123B1/fr
Priority to DE50301553T priority patent/DE50301553D1/de
Publication of EP1491123A1 publication Critical patent/EP1491123A1/fr
Application granted granted Critical
Publication of EP1491123B1 publication Critical patent/EP1491123B1/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
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1001—Piston pumps
    • B05B11/1004—Piston pumps comprising a movable cylinder and a stationary piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1052—Actuation means
    • B05B11/1053—Actuation means combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1074—Springs located outside pump chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material

Definitions

  • the invention relates to a pump for flowable media with a piston and a piston chamber, wherein the piston chamber at both ends by according to the movement of the piston actuated diaphragm valves can be sealed
  • Field of application of the invention are pumps as disposable or disposable pumps for the Dispensing of flowable media such as cosmetics or hygiene products from bottles.
  • the object of the invention is an optimal adaptation of the piston chamber and the diaphragm valves to the conditions of use.
  • the invention differs from the prior art in that the medium is from the piston chamber is conveyed into an exit chamber. As a result, the piston chamber can be designed optimally become.
  • the diaphragm valves hang on the cap, which consists of a resilient plastic.
  • the formed on ring coats diaphragm valves may have a small radial cross-section
  • a uniform guidance of the piston assembly is achieved in that the outer annular sheath the piston chamber is displaceable within the outlet chamber.
  • a leakage of the medium from the filled and intact bottle is thereby prevented that the annular jacket holds a sealing stopper over a breaking seam.
  • the suction position of the pump is fixed by that in the Anssaug ein the cap with a stop ring abuts against a stop step of the piston part.
  • Aeration of the container is made possible by the fact that on the outer surface of the guide wall a plurality of axial webs are formed, which raise the sealing lip in the ejection position of the pump.
  • a reduction of the components to two is made possible by a plastic spring einstükkig molded on the cap.
  • the pump consists essentially of two or three parts.
  • the first embodiment according to Figs. 1 and 2 comprises three parts: a ring-like piston 1, a piston chamber 2 forming Cap 3 and a coil spring 4 made of metal or plastic.
  • the piston 1 and the cap 3 are Injection molded parts, wherein the piston 1 made of a hard, elastic thermoplastic such as polyoxymethylene and the cap is made of a flexible thermoplastic such as polyethylene.
  • the piston 1 is seated on a ring plate 5, to which a cylindrical shell 6 with an internal thread 7 connects, which can be screwed onto a container, not shown.
  • a head wall 8 of Piston 1 takes in a sleeve 9 to a suction nozzle 10, which is shown broken off and substantially reaches to the bottom of the container.
  • At the sleeve 9 closes up an annular jacket 11th on, which forms the inner wall of the piston chamber 2.
  • the sleeve 9 and the suction nozzle 10 and the venezwnad the annular sheath 11 biden a passing channel for the medium.
  • the face of the Ring mantle 11 is closed by a sealing plug 12 which is integral with a break seam 13 the annular sheath 11 is connected.
  • the sealing plug 12 closes the container tightly and prevents Leakage of the medium, if in the container, an overpressure due to temperature increase or through plastic deformation occurs.
  • the breaking seam 13 is torn open. Even after this tearing is still a sealing function available.
  • the annular plate 5 has one or more equalization openings 14 for pressure equalization the interior space of the container.
  • On the ring plate 5 sit two cylindrical walls 15, 16, a Limit annular gap 17.
  • the outer wall 15 terminates in a stop step 18.
  • the inner wall 16 ends in a sealing lip 19.
  • On the annular plate 5 is also concentric with the piston 1, a further annular Wall 20, which encloses an outlet chamber 21 together with the piston 1.
  • the wall 20 ends in a sealing lip 22.
  • the cap 3 carries an inner annular jacket 23 with a Membranvetil 24, which on the annular jacket 11 abuts, and an outer annular jacket 25 with a diaphragm valve 26 which on the wall of the piston 1 is applied.
  • These ring shells 23, 25 form together with the annular casing 11 and the piston 1, the piston chamber 2, the content of which changes according to the movement of the cap 3.
  • a guide wall 27 of the cap 3 projects into the annular gap between the wall 16 and the wall 20. At This guide wall 27 are on the one hand, the sealing lip 19 of the wall 16 and on the other hand, the sealing lip 22 of the wall 20 at.
  • the sealing lip 22 is by the pressure in the outlet chamber 21 to the guide wall 27 pressed.
  • An end jacket 28 of the cap 3 engages with a stop ring 29 on the Stop step 18 of the wall 15 of the annular plate 5. There is no seal.
  • the outer diameter of the annular jacket 25 is smaller than the inner diameter of the wall 20, see. In particular Fig. 2, so that the outlet chamber 21 always unhindered with the outlet space 30 of Cap 3 has connection. To the outlet space 30, a nozzle 31 connects, through which the medium is ejected becomes.
  • the cap 3 is in the axial direction on the after insertion of the spring 4 Pushed piston 1, wherein the sealing lips, diaphragm valves and stops slide over each other and to center yourself.
  • the jacket 6 is screwed onto a vessel.
  • the sealing plug 12 holds the Suction nozzle 10 is closed, so that no medium can escape.
  • the cap 3 is pressed into the ejection position of FIG.
  • the breaking seam 13 is severed and thus the sealing plug 12 is torn off, so that medium can flow through the suction nozzle 10. Even after the separation exercises the sealing plug still a sealing function.
  • the spring 4 moves the cap 3 in the intake position of FIG. 1. This increases the Volume of the piston chamber 2, so that medium through the diaphragm valve 24 into the piston chamber. 2 can flow in.
  • the piston chamber is reduced, wherein medium passes through the diaphragm valve 26 in the outlet chamber 21 and ejected through the nozzle 31 becomes.
  • the sealing lip 19 is raised by the webs 32, so that air can flow through the compensation openings 14 in the interior of the container.
  • the suction position of the pump is determined by the stopper stage 18, the ejection position by the stopper of the cap 3 on the end face of the annular jacket 11. As a result, the diaphragm valves spared.
  • the modified embodiment of FIG. 3 has an integrally formed on the cap 3 Plastic spring 33.

Landscapes

  • Closures For Containers (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Reciprocating Pumps (AREA)

Claims (8)

  1. Pompe pour milieux fluides comprenant un piston et une chambre de piston, la chambre de piston pouvant être étanchéifiée aux deux extrémités par des soupapes à membrane actionnées en conformité avec le déplacement du piston, caractérisée en ce que le piston (1) pénètre par une paroi de tête (8) et par une enveloppe annulaire (11) dans la chambre de piston (2), que la chambre de piston (2) est par ailleurs délimitée par deux enveloppes annulaires (23, 25), qui s'appliquent chacune par des soupapes à membrane (24, 26) sur l'enveloppe annulaire (11) et sur la surface extérieure du piston (1), et qu'une chambre de sortie (21) débouchant dans une buse (31) se raccorde à la chambre de piston (2).
  2. Pompe suivant la revendication 1, caractérisée en ce que l'enveloppe annulaire extérieure (25) de la chambre de piston (2) est mobile en translation à l'intérieur de la chambre de sortie (21).
  3. Pompe suivant l'une des revendications 1 et 2, caractérisée en ce que l'enveloppe annulaire (11) maintient un bouchon d'étanchéité (12) par l'intermédiaire d'un joint de rupture (13).
  4. Pompe suivant l'une des revendications 1 à 3, caractérisée en ce que, dans la position d'aspiration, le capuchon (3) s'applique par une bague de butée (29) sur un échelon de butée (18) de l'élément de piston.
  5. Pompe suivant l'une des revendications 1 à 4, caractérisée en ce que, dans la position de pulvérisation, le capuchon (3) s'applique sur la surface de tête de l'enveloppe annulaire (11).
  6. Pompe suivant l'une des revendications 1 à 5, caractérisée en ce qu'une paroi de guidage (27) du capuchon (3) est guidée hermétiquement entre des parois (16, 20) de l'élément de piston.
  7. Pompe suivant la revendication 6, caractérisée en ce que sur la surface extérieure de la paroi de guidage (27) sont conformées plusieurs nervures axiales (32) qui dans la position de pulvérisation de la pompe relèvent la lèvre d'étanchéité (19).
  8. Pompe suivant l'une des revendications 1 à 7, caractérisée en ce qu'un ressort en matière plastique (33) est injecté d'une seule pièce sur le capuchon.
EP03014345A 2003-06-26 2003-06-26 Pompe de distribution de produit fluide Expired - Lifetime EP1491123B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT03014345T ATE308265T1 (de) 2003-06-26 2003-06-26 Pumpe für fliessfähige medien
EP03014345A EP1491123B1 (fr) 2003-06-26 2003-06-26 Pompe de distribution de produit fluide
DE50301553T DE50301553D1 (de) 2003-06-26 2003-06-26 Pumpe für fliessfähige Medien

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03014345A EP1491123B1 (fr) 2003-06-26 2003-06-26 Pompe de distribution de produit fluide

Publications (2)

Publication Number Publication Date
EP1491123A1 EP1491123A1 (fr) 2004-12-29
EP1491123B1 true EP1491123B1 (fr) 2005-11-02

Family

ID=33395873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03014345A Expired - Lifetime EP1491123B1 (fr) 2003-06-26 2003-06-26 Pompe de distribution de produit fluide

Country Status (3)

Country Link
EP (1) EP1491123B1 (fr)
AT (1) ATE308265T1 (fr)
DE (1) DE50301553D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104481852B (zh) * 2014-10-28 2016-08-31 上海空间推进研究所 一种补偿膜盒组件及其安装方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5676277A (en) * 1991-05-20 1997-10-14 Ophardt; Heiner Disposable plastic liquid pump
DE10017340A1 (de) * 2000-04-07 2001-10-18 Rosenthal Karl Heinz Pumpe

Also Published As

Publication number Publication date
EP1491123A1 (fr) 2004-12-29
ATE308265T1 (de) 2005-11-15
DE50301553D1 (de) 2005-12-08

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