EP0668951A1 - Dispositif tamiseur pour l'obtention d'un jet d'eau mousseux - Google Patents

Dispositif tamiseur pour l'obtention d'un jet d'eau mousseux

Info

Publication number
EP0668951A1
EP0668951A1 EP94924678A EP94924678A EP0668951A1 EP 0668951 A1 EP0668951 A1 EP 0668951A1 EP 94924678 A EP94924678 A EP 94924678A EP 94924678 A EP94924678 A EP 94924678A EP 0668951 A1 EP0668951 A1 EP 0668951A1
Authority
EP
European Patent Office
Prior art keywords
sieve
ring
arrangement according
housing
screen
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.)
Ceased
Application number
EP94924678A
Other languages
German (de)
English (en)
Inventor
Oskar Ruther
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.)
SCHAUDT, REINER
Original Assignee
Schaudt Reiner
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 Schaudt Reiner filed Critical Schaudt Reiner
Publication of EP0668951A1 publication Critical patent/EP0668951A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/528—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles by resilient deformation of the nozzle

Definitions

  • the invention relates to a sieve arrangement for generating a sparkling water jet according to the preamble of claim 1.
  • Sieves made of wire have been used at the water outlet of faucets for decades, which swirl the outflowing water and thus dissolve the emerging water jet somewhat.
  • the screens are designed such that the emerging water jet, like a water jet pump, sucks air from the environment into the area above the screens and the air is mixed with the water in a plurality of screens connected in series, so that a bubbling jet emerges.
  • the advantage of such a jet is that when washing hands, the water does not splash to the side, but is evenly distributed over the hair.
  • the object of the present invention is to create a sieve arrangement which has a low tendency to calcification.
  • the object of the present invention is further to provide the screen arrangement with a throttle device which does not tend to become blocked by impurities in the water and / or calcification.
  • the plastic meshes or gauzes which are arranged one above the other.
  • sieves produce a very fine resolution of the water jet emerging, and on the other hand, the sieves reduce the formation of limescale over a long period of use, even when used on hot water taps.
  • the fine gauzes are vibrated by the water flowing through them. The vibration therefore causes a continuous movement, which prevents the deposition and build-up of a layer of limescale, by continuously breaking up the thin layers of limestone formed when the tap is not in use and removing it as small fractions that cannot be retained by the sieves.
  • the diaphragm according to the invention regulates the passage cross section as a function of the pressure on the inflow side, without significantly increasing the overall height of the arrangement.
  • the rubber ring inserted loosely in the channel allows impurities that have been temporarily retained to escape from the area of the orifice when the water supply is switched on or off.
  • the conical and undulating surface area of the inner part of the diaphragm allows a fine adjustment of the passage rate with increasing pressure through the rubber ring surrounding the inner part.
  • the parts of the screen made of plastic reduce the formation of limescale and ensure a constant amount of water per unit of time.
  • the channel receiving the rubber ring can be formed in a simple and cost-effective manner by the diaphragm and the throttle ring below it, which has a stepped bore. Both parts are easy to produce by injection molding from plastic and can be connected to each other without tools by coaxial sliding. Air can easily enter the inflow side of the screens arranged in the housing through one or more channels or recesses in the outer surface of the throttle ring and slots in the housing.
  • the outlet sieve of the third embodiment enables a laminar outflow of water and prevents unwanted and uncontrolled spreading of the water jet, especially in the case of sieve arrangements without air supply, as are prescribed in hospitals and medical practices.
  • Embodiment of a sieve arrangement (the sieves are shown as a grid, but can be designed analogously to FIGS. 10 and 11),
  • FIG. 2 shows a top view of the screen arrangement
  • FIG. 3 shows a bottom view of the sieve arrangement
  • FIG. 4 shows an exploded view of the individual parts of the sieve arrangement
  • Figure 5 shows an axial section through the second embodiment of the invention.
  • FIG. 6 shows an axial section through a suction strainer of a third embodiment of the invention
  • FIG. 7 shows a top view of the suction strainer in FIG. 6,
  • FIG. 8 shows an axial section through the screen arrangement of the third embodiment of the invention with an outlet screen with guide surfaces
  • FIG. 9 shows an outlet sieve for a sieve arrangement without air admixture
  • FIG. 10 shows an axial section through an outlet sieve made of plastic fabric with a clamping ring
  • Figure 11 is an axial section through an outlet sieve made of plastic fabric with a molded edge.
  • a cover 7 with an outer ring 9 and an inner part 11 a rubber ring 13, for example an O-ring, a throttle ring 15 are in a housing 3, which is closed at the bottom by an outlet sieve 5, a suction strainer 17, e.
  • Printing screen 19 and a bead screen 21 are arranged coaxially to one another in the order listed.
  • the stepped interior of the housing 3 receives in its upper section 23 the throttle ring 15 and the diaphragm 7 inserted therein.
  • the individual parts of the screen arrangement 1 made of plastic are explained in more detail below.
  • the inner part 11 of the diaphragm 7 is connected to the outer ring 9 by a plurality of webs 27.
  • the outer ring 9 preferably has a cylindrical outer lateral surface 29, the diameter of which corresponds to the inner clear width of the upper section 23 of the housing 3.
  • the inner circumferential surface 33 of the outer ring 9 facing the annular inlet opening 31 between the outer ring 9 and the inner part 11 preferably runs conically. However, it can also be cylindrical (not shown).
  • the outer lateral surface 35 of the inner part is also conical and is also undulating.
  • the wave crests 37 and wave troughs 39 each lie in imaginary common, conical surfaces.
  • the inner part 11 projects beyond the outer ring 9 with its tapered lower end on the front side.
  • the diaphragm 7 is seated completely embedded in a circumferential shoulder 41 in the throttle ring 15 and is held by this both radially and axially.
  • the throttle ring 15 has at its lower end an inwardly directed flange 43, which is a central one Opening 45 surrounds.
  • the lower section of the outer surface of the throttle ring 15 has a circumferential groove 47. In the transition from the recess 47 to the lower end face 49 of the throttle ring 15, a plurality of recesses 51 are made.
  • These recesses 51 are preferably distributed regularly over the circumference and form free passage cross sections with respect to the surface of the inclined to the horizontally extending retaining ring 53 of the suction strainer 17.
  • the central sieve part 55 of the suction strainer 17 has a diameter which is larger than the central, non-permeable Part 57 of the pressure screen 19.
  • the air which flows into the area indicated by reference number 59 can initially enter the space 62 formed by the recess 47 and the housing wall of the housing 3 through slots 61 arranged on the circumference of the housing 3.
  • the rubber ring 13 rests on the flange 43 (cf. right half of the illustration in FIG. 1).
  • the passage cross section of the inlet opening 31 is largest in this position of the rubber ring 13.
  • the water can flow both in the troughs 39 of the inner part 11 and in the area between the wave crests 37 and the inner ring surface of the rubber ring 13.
  • the rubber ring 13 lifts off from the flange 43 somewhat. Since the wave-shaped outer surface 35 of the inner part 11 is conical, and because the diameter of the rubber ring 13 is essentially unchangeable, it lies against the inner part 11.
  • the rubber ring 13 lies both intimately on the lateral surface 35 of the inner part 11 and on the outer ring 9.
  • the inflowing water can then only reach the space 59 in the troughs 39 which are additionally narrowed by the rubber ring 13. The amount of pressure of the inflowing water at which the
  • Passage cross-section is smallest, can be determined on the one hand by the size of the rubber ring 13 and / or on the other hand by the height of the wave crests 37 or the depth of the wave troughs 39 and their geometric design. It is therefore possible to equip the screen arrangement 1 for different pressures by using appropriately dimensioned orifices 7 and / or rubber rings 13. A corresponding identification of the maximum amount of water per unit of time can be optically represented, for example, by the color of the screen 7.
  • the sieves are preferably made of plastic like the other bodies. They have rectangular webs 63 forming the screen surface, the cross-sectional area of which is rectangular or diamond-shaped (see FIG. 1).
  • the apex lines 65 of the screen webs of the individual screens preferably run at right angles to one another.
  • the apex lines 65 of the screens arranged one above the other are preferably arranged at an acute angle to one another. This enables a "waterfall effect" and leads to an excellent mixing of the water with the air supplied through the slots 61.
  • the diaphragm and the throttle ring can be of the same design as in the embodiment of the invention in FIGS. 1 to 4. These parts are therefore not explained in more detail below and are also not shown in FIG. 5.
  • the suction strainer is
  • a cone-shaped membrane 118 is also inserted and, when depressurized, lies snugly against the underside of the suction strainer 117.
  • Feet 120 are molded onto the membrane 118 and are supported on the pressure screen 119, which is also conical.
  • the pressure screen 119 serves as a spring which presses the membrane 118 against the suction screen 17.
  • a guide mandrel 122 which is also molded onto the membrane 118 and which is guided in central openings in the underlying sieves (pressure sieve 119, pearl sieve 121, outlet sieve 105) with little play, centers the membrane 118 at all times.
  • the membrane 118 Before water enters the sieve arrangement 101 from above, the membrane 118 lies against the suction sieve 117 and completely closes the passage through its sieve surface. As soon as the pressure of the water is increased, the membrane 118 moves downward against the force of the resilient pressure screen 119 and water can reach the pressure screen 119 via the periphery of the membrane 118. As soon as the pressure of the water drops again, the membrane closes
  • the suction sieve 217 has an annular passage opening 222 which is interrupted by webs 218.
  • a water guiding element 224 is inserted in the center of the passage opening 222, the outer jacket 226 of which has an arcuate cross-sectional profile.
  • the hollow inside of the water guide member 224 forms a mixing chamber 230 for the air entering through air access slots 261 arranged on the circumference of the housing 203 with the water brought through the passage opening 222 before it reaches the pressure screen 219.
  • the outlet sieve 305 of the sieve arrangement 301 shown in FIG. 9 has annular channels 332, the height H of which, in relation to the width B, is approximately 2: 1 to 4: 1.
  • the annular channels 332 are formed by concentrically arranged annular webs 334 of small width, which are supported by a number of radially extending bridges (not shown).
  • the outlet sieve 405 is made from two or more narrow-mesh plastic fabrics 477 lying one above the other.
  • the plastic fabrics 477 also called gauzes, preferably have a mesh size of 0.35 to 0.50 mm and are in the form of punched-out rondelles or hot-cut rondelles.
  • the plastic fabric 477 lying at the bottom preferably has a larger passage cross section than the ones above it; this can be 1 mm, for example.
  • the rondelles made of plastic fabric 477 can be assembled by placing them on the annular edge surface 479 of the sieve 405 and clamping them by means of a clamping ring 481.
  • the clamping ring 481 preferably has a circumferential rib 482 on its underside, which lies opposite a correspondingly arranged groove 483 in the annular surface 479 and keeps the plastic fabric 477 slightly stretched when pressed in.
  • the clamping ring 481 is held on the outlet screen 405 by a circumferential bead 485.
  • the edges of the plastic fabric 477 cut out as rondelles are injected individually or directly one above the other into a plastic retaining ring 487.
  • the plastic fabrics 477 arranged one above the other, held by the holding ring 487, are pressed as a whole into the holding ring 487 of the sieve 405.
  • plastic fabrics 477 can also be used.
  • Ultrasonic welding can be directly welded to the 405 screen or indirectly to the 487 retaining ring. Only the retaining ring 487 with ultrasonic welding can also be welded to the sieve 405.
  • the sieves are constructed as shown in FIGS. 1, 4, 5 and 8.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Le dispositif tamiseur présente au moins, côté sortie du robinet, une pluralité de tissus en matière plastique à mailles fines (477) servant à diviser le jet d'eau sortant. Les tissus en matière plastique (477) sont amenés à vibrer sous l'action de l'eau, empêchant ainsi la formation et le dépôt de calcaire.
EP94924678A 1993-09-02 1994-09-02 Dispositif tamiseur pour l'obtention d'un jet d'eau mousseux Ceased EP0668951A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH261193 1993-09-02
CH2611/93 1993-09-02
CH288993 1993-09-24
CH2889/93 1993-09-24
PCT/CH1994/000171 WO1995006787A1 (fr) 1993-09-02 1994-09-02 Dispositif tamiseur pour l'obtention d'un jet d'eau mousseux

Publications (1)

Publication Number Publication Date
EP0668951A1 true EP0668951A1 (fr) 1995-08-30

Family

ID=25690938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94924678A Ceased EP0668951A1 (fr) 1993-09-02 1994-09-02 Dispositif tamiseur pour l'obtention d'un jet d'eau mousseux

Country Status (2)

Country Link
EP (1) EP0668951A1 (fr)
WO (1) WO1995006787A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19852411A1 (de) 1998-11-13 2000-05-18 Grohe Kg Hans Wasserstrahlbelüfter
DE10246333B4 (de) 2002-10-04 2008-06-19 Neoperl Gmbh Strahlregler
DE102010012326B4 (de) 2010-03-23 2015-10-01 Neoperl Gmbh Strahlregler
US9534361B2 (en) 2010-03-23 2017-01-03 Neoperl Gmbh Jet regulator
DE202019107100U1 (de) * 2019-12-19 2021-03-22 Neoperl Gmbh Strahlregler
DE102020129639A1 (de) 2020-11-10 2022-05-12 Neoperl Gmbh Sanitäres Einsetzteil und korrespondierende Verwendung
DE102021120460A1 (de) 2021-08-05 2023-02-09 Neoperl Gmbh Strahlregler
DE102022111373A1 (de) 2022-05-06 2023-11-09 Neoperl Gmbh Sanitäres Einsetzteil

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730440A (en) * 1971-09-20 1973-05-01 American Standard Inc Laminar-flow spout-end devices
US4000857A (en) * 1974-07-17 1977-01-04 Moen Alfred M Flow control aerator
DE8202024U1 (de) * 1982-01-28 1982-06-03 TA Rokal GmbH, 4054 Nettetal Auslaufmundstueck fuer sanitaere wasserauslaufventile
US4562960A (en) * 1983-03-14 1986-01-07 Masco Corporation Of Indiana Pressure responsive aerator
US4657186A (en) * 1985-10-04 1987-04-14 Shapiro Eugene B Stream former
DE3637449A1 (de) * 1986-11-04 1988-05-05 Grohe Armaturen Friedrich Wasserauslaufmundstueck
DE3642356C2 (de) * 1986-12-11 1995-10-05 Wildfang Dieter Gmbh Strahlregler
DE3739273A1 (de) * 1987-11-20 1989-06-01 Dieter Kuhn Auslaufdrossel fuer wasserauslaeufe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9506787A1 *

Also Published As

Publication number Publication date
WO1995006787A1 (fr) 1995-03-09

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