EP1311730B1 - Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires - Google Patents

Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires Download PDF

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Publication number
EP1311730B1
EP1311730B1 EP00951179A EP00951179A EP1311730B1 EP 1311730 B1 EP1311730 B1 EP 1311730B1 EP 00951179 A EP00951179 A EP 00951179A EP 00951179 A EP00951179 A EP 00951179A EP 1311730 B1 EP1311730 B1 EP 1311730B1
Authority
EP
European Patent Office
Prior art keywords
active ingredient
water
siphon
dosing
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
Application number
EP00951179A
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German (de)
English (en)
Other versions
EP1311730A1 (fr
Inventor
Hans-Jörg Studer
Markus Ehrensperger
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.)
HTS International Trading AG
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HTS International Trading AG
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Filing date
Publication date
Application filed by HTS International Trading AG filed Critical HTS International Trading AG
Publication of EP1311730A1 publication Critical patent/EP1311730A1/fr
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing
    • E03D9/03—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing consisting of a separate container with an outlet through which the agent is introduced into the flushing water, e.g. by suction ; Devices for agents in direct contact with flushing water
    • E03D9/033—Devices placed inside or dispensing into the cistern
    • E03D9/038—Passive dispensers, i.e. without moving parts

Definitions

  • the present invention relates to a method according to the preamble of claim 1 and an apparatus according to claim 3.
  • a purely fluid-mechanical method according to the preamble of the claim is known from U.S. -A- 1,178,912 known.
  • diluted substance is absorbed by a siphon from a cup-shaped container, which is fed from a reservoir in the manner of a bird bath.
  • the bird bath already begins to feed during the outflow of the rinse water drug and fills the cup-shaped container within a short time interval.
  • the necessary dilution undergoes the active ingredient via the connecting line by flowing back during a flushing process in the container water. This dilution is therefore dependent on the amount of water and thus the water pressure in the purge line.
  • a stopcock acting as a throttle is provided in the connecting line.
  • a disadvantage of this arrangement is the lack of a safety device which prevents an outflow through the device at a positive pressure, for example by a disabled ordinary drainage of the rinse water. If, on the other hand, the system, as drawn in the embodiment, is closed, i. E. if the space above the cup-shaped container is not connected to the atmosphere, then unacceptable pressure fluctuations occur, which impair or even make impossible the dosage of the active substance.
  • the dilution of the drug depends on the pressure fluctuations of the rinse water; the amount of water that flows back into the cup-shaped container is basically not constant. Due to the rapid flow of active ingredient is used in short-term repeated use of the toilet, especially in urinals relatively much active ingredient.
  • the dosage should be optimal, ie the drug must prevent unwanted deposits, especially those made of lime, and also act as a discreet deodorant.
  • An exchange of the reservoir should also be required for a frequently used toilet or a urinal in public facilities only several months apart. For a short-term repeated use of the sanitary facility should not unnecessarily increase the volume of active substance consumed.
  • liquid active substance to be used should therefore be freely selectable, this means that it can be wetting, oily or highly viscous, in any case it must experience a reproducible dosage in the device.
  • the achievable with the features of claim 1 dosage can be reproducible in the accuracy of a single liquid stopper and can be set or configured empirically in time so that only a minimum of active ingredient is consumed in short-term repeated use of sanitary.
  • a device suitable for carrying out the method is characterized by the features of claim 3.
  • the embodiment according to claim 4 is the preferred practical embodiment of the teaching according to claim 2.
  • a taper of the cross section of the passage according to claim 5 serves to increase the pressure and improves the mixing in the dosing.
  • An easily replaceable installation of the dispensing needle according to claim 6 allows their cleaning or replacement in the case of encrustations or crystallization of the active ingredient.
  • the dimensioning, claim 7 are indicative of the dispensing needle and allow them to adapt to the viscosity of the drug.
  • the design of the lower end of the dispensing needle according to claim 8 is also favorable for wetting liquids and ensures a reproducible dosage.
  • the two-part construction of the siphon according to claim 9 allows easy and complete cleaning of the mixing chamber, for example, in a washing-up machine.
  • overflow protection is useful especially at high pressure fluctuations in the pipe network and is formed in the simplest case as a float valve.
  • a device for supplying active ingredient in sanitary facilities is designated 100.
  • a reservoir 2 can be seen, with its bottleneck 6 protrudes into a mixing chamber 3.
  • the mixing chamber 3 is sealed by a removable lid 3 '.
  • a connecting piece 4 can be seen on a lowering part 12, which is provided for the connection of a connecting line to a sanitary system.
  • the aforementioned parts are provided on a base plate 8 with a support 9 and lateral jaws 10; in the upper part of the base plate 8 there are two openings 11, which serve to secure the device 100 on a wall.
  • a wall W urinal 60 is shown, which is provided with a supply 1 for rinsing water and a device 100 (a dosing device), with a reservoir 2 for a suitable liquid is.
  • the first illustration of Figure 3 shows how the active ingredient liquid, after a cistern 50 through a stub 5 of the feed 1 is added; the second illustration has a conventional, automatic flush valve 80 instead of the cistern.
  • the liquid is introduced via the cistern into the feeder 1, while the triggering of the rinsing process takes place manually via a rinsing button 90.
  • Fig. 4 is drawn, in conjunction with a likewise conventional toilet bowl 70; in turn, the stubs 5 serve to introduce the liquid.
  • FIGS. 3 and 4 show by way of example the universal application possibility of the subject of the invention.
  • FIG. 5 shows an enlarged sectional view of the assignment of the individual elements of the device 100.
  • On the overhead hopper 2 is on its bottleneck 6, screwed onto the outer thread 6 'a cap 7 with a metering.
  • the cap 7 is inserted into the recessed central opening of a lid 3 '.
  • a dispensing needle 13 is used, which has its own fluid passage 14 for the stored in the reservoir 2 active ingredient A.
  • the per se cylindrical dispensing needle 13 has a upwardly tapering milled recess 15, which merges into a notch 16 and the air passage into the reservoir 2 is used.
  • the lower outflow opening 14u opens into a cylindrical recess 17, which in turn is in a flat chamfer 18.
  • the dosing of the cap 7 is held in the lid 3 'by a clamping seal 19 liquid-tight.
  • the dispensing needle 13 projects with its chamfer 18 in a lowered metering 27, which is laterally connected via a passage 28 with a siphon 25.
  • the siphon 25 in turn has side edges 26 and is closed by a removable lid 24 and therefore may possibly be easily cleaned.
  • the siphon 25 opens on the left side in a rectilinear siphon outlet 4 ', at whose end a sealing ring (O-ring) 4 "is arranged and on which the connecting piece 4 (Fig. 2) is pushed.
  • a float 21 with a sealing washer 33 and a central guide pin located in the mixing chamber 3, a float 21 with a sealing washer 33 and a central guide pin.
  • the float 21 is in the normal operating state on support strips 22 and is at too high a level - for example, due to excessive pressure - pressed onto a valve seat 20 and closes a present in the cover 3 bore 23 tight.
  • the bore 23 serves for the exchange of air during the dosing process; this is independent of variations in air pressure.
  • Figs. 7a to 7b illustrate in an overdrawn manner the filling process in three characteristic stages:
  • FIG. 7a shows how the metering chamber 27 is filled dropwise with active substance A via the liquid passage 14. Air flows through the bore 23 in the lid 3 ', see. Fig. 5, in the mixing container 3 and so long on the air flow 15 'until the dosing is filled, di until the air afterflow 15' of the active ingredient A prevents a backflow of air.- In the illustration Fig. 7a are above the notch 16th two bubbles B drawn; they represent the end of the dosage at the predetermined level N o . The dosage is thus volumetric with high reproducibility and is independent of the atmospheric pressure.
  • This dosage which can be referred to as a normal case, takes place when there are longer time intervals between the individual rinsing operations, i. in practice about 10 minutes.
  • the situation according to FIG. 7b arises, ie the water flowing in via the connecting line 5 and the connection nozzle 4, FIG. 4, mixes with the active ingredient A to form solution (H 2 O) s on the Level N 1 .
  • the dilution of the active ingredient A can be predetermined by means known per se by adjusting the pressure of the refluxing water and thus of the level N 1 .
  • the relatively large mixing chamber 3 prevents even with pressure fluctuations and overpressures in the water network an outflow of water through the bore 23, Fig. 5. However, should be opened by a faulty manipulation or by vandals a valve or the like., So the float 21 occurs as shown in FIG 5 in action and prevents flooding by this with its upper sealing washer 33, the mixing chamber 3 seals.
  • the subject invention is characterized by its simplicity and reliability and is functional with a storage volume of 0.5 1 even with intensive use in public toilets for at least three months.
  • the intensive mixture of water and active ingredient also allows the use of emulsions, since these are swirled upon the inflow of the water and thus emulsified again.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)

Claims (10)

  1. Procédé d'introduction d'un agent actif nettoyant, désinfectant et/ou désodorisant dans des installations sanitaires, en particulier dans l'eau de chasse d'appareils sanitaires, tels qu'urinoirs ou toilettes, dans lequel l'agent actif, avec une pression d'eau déjà réduite, est mélangé à l'eau de chasse entrant dans lequel il est prévu un réservoir fermé en partie haute pour l'agent actif, dont l'ouverture de sortie inférieure plonge dans un compartiment de mélange, qui est relié du côté supérieur à l'atmosphère et peut être vidé et rempli du côté inférieur par un siphon, et dans lequel la sortie du siphon est en liaison active, par l'intermédiaire d'une conduite, avec l'arrivée d'eau de l'installation sanitaire, caractérisé en ce que l'agent actif est envoyé goutte à goutte dans un espace de dosage, abaissé par rapport au fond du reste du compartiment de mélange et muni d'une ouverture latérale, et que la partie cédant les gouttes de l'ouverture de sortie inférieure est d'abord fermée, puis une ouverture placée plus en hauteur, servant au post-écoulement d'air dans le réservoir, par l'agent actif continuant à s'écouler et/ou par l'eau admise par l'intermédiaire de la conduite de pression et du siphon, une quantité définie d'agent actif se mélangeant à l'eau, admise par l'intermédiaire du siphon dans le compartiment de mélange pendant l'opération de chasse, et se vidant ensuite par l'intermédiaire de l'eau, avec une pression réduite de la conduite d'eau de chasse et une dépression dans le siphon, et s'écoulant dans la conduite d'eau de chasse.
  2. Procédé suivant la revendication 1, caractérisé en ce que l'eau d'admission est envoyée tangentiellement à la paroi intérieure par un passage rétréci.
  3. Dispositif pour la mise en oeuvre du procédé suivant l'une des revendications 1 et 2, pour l'introduction d'un agent actif nettoyant, désinfectant et/ou désodorisant dans des installations sanitaires, en particulier dans l'eau de chasse d'appareils sanitaires, tels qu'urinoirs (60) ou toilettes (70), dans lequel l'agent actif (A), avec une pression d'eau déjà réduite, est mélangé à l'eau de chasse entrant, dans lequel il est prévu un réservoir (2) fermé en partie haute pour l'agent actif, dont l'ouverture de sortie inférieure plonge dans un compartiment de mélange (3), qui est relié du côté supérieur à l'atmosphère et peut être vidé et rempli du côté inférieur par un siphon (25), et dans lequel la sortie du siphon est en liaison active, par l'intermédiaire d'une conduite, avec l'arrivée d'eau de l'installation sanitaire, caractérisé en ce qu'il est prévu une aiguille de dosage (13), qui présente dans la direction axiale un passage de liquide (14) raccordé au réservoir (2), que l'ouverture de sortie inférieure (14u) de l'aiguille de dosage (13) débouche dans un espace de dosage (27) abaissé, et qu'il est prévu une ouverture séparée (15') pour le post-écoulement d'air dans le réservoir (2), qui pénètre dans l'espace de dosage (27) et est rétrécie du côté supérieur, de sorte que l'espace de dosage (27) se remplit goutte à goutte, jusqu'à ce que l'ouverture (15') arrête, par le niveau (N0) du liquide (A ; H2O), un post-écoulement d'air dans le réservoir (2).
  4. Dispositif suivant la revendication 3, caractérisé en ce que le siphon (25) débouche dans un passage (28) prévu tangentiellement dans l'espace de dosage (27).
  5. Dispositif suivant la revendication 4, caractérisé en ce que la section transversale du passage (28) est rétrécie par rapport à la section transversale du siphon (25).
  6. Dispositif suivant la revendication 3, caractérisé en ce que l'aiguille de dosage (13) peut être insérée dans le goulot du couvercle (3') du réservoir (2).
  7. Dispositif suivant la revendication 3 ou 5, caractérisé en ce que l'aiguille de dosage (13) présente un passage de liquide de moins de 0,8 mm, et que le passage d'air du côté supérieur est une entaille de moins de 1,0 mm de profondeur.
  8. Dispositif suivant la revendication 7, caractérisé en ce qu'un chanfrein (18), qui plonge dans le compartiment de dosage (27), est prévu sur l'extrémité inférieure de l'aiguille de dosage (13), et que l'ouverture (15) pour le passage d'air mène au point le plus haut du chanfrein (18).
  9. Dispositif suivant la revendication 3, caractérisé en ce que le siphon (25) est configuré en deux parties et est démontable.
  10. Dispositif suivant la revendication 3, caractérisé en ce qu'une sécurité de débordement (20 - 23) est contenu dans le compartiment de mélange (3).
EP00951179A 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires Expired - Lifetime EP1311730B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2000/000445 WO2002016705A1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires

Publications (2)

Publication Number Publication Date
EP1311730A1 EP1311730A1 (fr) 2003-05-21
EP1311730B1 true EP1311730B1 (fr) 2007-10-10

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EP00951179A Expired - Lifetime EP1311730B1 (fr) 2000-08-22 2000-08-22 Procede et dispositif pour doser un agent actif dans de l'eau de chasse d'installations sanitaires

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EP (1) EP1311730B1 (fr)
AU (1) AU2000264229A1 (fr)
DE (1) DE50014715D1 (fr)
WO (1) WO2002016705A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1178912A (en) 1915-07-29 1916-04-11 Claude Victor Fulton Disinfecting and deodorizing device for sanitary flush apparatus.
DE1609279A1 (de) * 1962-09-11 1970-04-16 Wilhelm Teschner Vorrichtung fuer die selbsttaetig dosierte Hinzufuegung von fluessigen Zugabemittelnzu in Intervallen stroemenden Fluessigkeiten
US4916760A (en) * 1988-10-24 1990-04-17 Arie Shahar Dispensing device
FR2647484B1 (fr) * 1989-05-26 1991-09-13 Nigiko Sa Assainisseur perfectionne
IT1255578B (it) 1992-07-14 1995-11-09 Gruppo elettronico per l'erogazione controllata di liquidi disinfettanti e simili in apparecchi igienici in genere.

Also Published As

Publication number Publication date
WO2002016705A1 (fr) 2002-02-28
AU2000264229A1 (en) 2002-03-04
DE50014715D1 (de) 2007-11-22
EP1311730A1 (fr) 2003-05-21

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