[go: up one dir, main page]

WO1993017207A1 - Systeme pour l'evacuation d'eau - Google Patents

Systeme pour l'evacuation d'eau Download PDF

Info

Publication number
WO1993017207A1
WO1993017207A1 PCT/AU1992/000388 AU9200388W WO9317207A1 WO 1993017207 A1 WO1993017207 A1 WO 1993017207A1 AU 9200388 W AU9200388 W AU 9200388W WO 9317207 A1 WO9317207 A1 WO 9317207A1
Authority
WO
WIPO (PCT)
Prior art keywords
outlet
container
arrangement
vent
chamber
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
PCT/AU1992/000388
Other languages
English (en)
Inventor
Ira Patrick Francis Quirke
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.)
ARK NOMINEES Pty Ltd
Original Assignee
ARK NOMINEES Pty Ltd
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 ARK NOMINEES Pty Ltd filed Critical ARK NOMINEES Pty Ltd
Publication of WO1993017207A1 publication Critical patent/WO1993017207A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/12—Devices or arrangements for circulating water, i.e. devices for removal of polluted water, cleaning baths or for water treatment
    • E04H4/1209—Treatment of water for swimming pools
    • E04H4/1236—Bottom drains
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/6068—Outlet from the bath
    • A61H33/6073—Intake mouths for recirculation of fluid in whirlpool baths
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/06—Safety devices; Coverings for baths
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0173—Means for preventing injuries
    • A61H2201/018—By limiting the applied torque or force

Definitions

  • This invention relates to an apparatus for the egress of liquid from a container, and specifically relates to limiting negative pressure at outlets of such containers.
  • a specific aspect of this invention relates to an outlet arrangement for spas or swimming pools which act as drainage points from the container and/or supply points to circulation and/or jet pumps, back into the container.
  • Outlets of the type to which this invention relates can have some inherent dangers to users so that in, for example, swimming pools where children may dive or swim to the bottom and perhaps cover such outlets with their hands there is a risk that the negative pressure created by a pump, or simply the pull of gravity in a drain, is sufficient to make a smaller child have difficulty in getting away from the outlet or covering of the outlet.
  • the invention could be said to reside in an outlet arrangement for a body of liquid within a container, said outlet arrangement including a housing defining a container outlet aperture in low pressure communication with a vent, said vent adapted to extend to above an upper surface of liquid within the container and a housing outlet comprising at least one housing outlet aperture in communication with both the container outlet aperture and the vent, wherein a negative pressure is induced at the container outlet aperture either by a pump or by reason of a gravitational draining of the liquid.
  • the present invention provides an outlet arrangement which limits the negative pressure at the outlet aperture such as might be covered by a "grill" or perforated cover to a pressure equivalent to the height of liquid within the container irrespective of atmospheric pressure.
  • the invention could be said to reside in an outlet arrangement for a body of liquid within a container, said outlet arrangement including a housing defining a container outlet aperture and a chamber, said container outlet aperture communicating between said container and the chamber, a vent in communication with said chamber and adapted to extend to above an upper surface of liquid within the container and a chamber outlet comprising at least one chamber outlet aperture for connection with a negative pressure source.
  • the outlet aperture has a cross sectional area substantially greater than the cross sectional area of the chamber outlets and preferably the cross sectional area of the container is three times greater than the area of the chamber outlet.
  • This preferred form limits the velocity of the fluid through the outlet aperture such as might be covered by a "grill” or perforated cover consequently reducing the vortexing of the fluid downstream of the "grill” and thus reducing the ability of the fluid flow to entangle the hair, apparel or other matter entrapping a user beneath the fluid surface.
  • apertures pass through the cover, the sum of the cross sectional areas of such openings is substantially greater than the sum of the cross sectional areas of the total outlet cross section of the chamber outlet, and wherein each aperture of the plurality of apertures is of a dimension so as not to allow a digit to pass therethrough or entrapped therein.
  • the cover may comprise a grilled cover piece or pieces adapted to be removed by means of a tool or force opposing the flow of fluid to the drain and/or pump(s) connected to the chamber.
  • the cover may comprise a perforated plate or "grill” adapted to be held to the chamber by a detent means with a recess or slot enabling the detent means to be overcome by use of a tool or force opposing the liquid flow.
  • the plate or "grill” is adapted to contain an orifice or orifices of a least three times the total cross sectional area of the drain-outlet and/or pump(s) inlet(s).
  • the chamber is adapted to contain at least one fluid tube venting to the atmosphere.
  • the vent is of a dimension that preferably enables free movement of liquid therein.
  • the cover includes a plurality of spaced apart transverse bars forming a grill supported on a circular frame, the bars being generally elongated with respect to the direction of flow.
  • the chamber is in the form of an open cup with the open end adapted for sealing location within the wall or floor of the container, and an opposite closed end of the chamber is adapted to receive pipes or tubes to convey water from the container to the drain or pump(s) inlet(s).
  • the cover over the container outlet aperture is of such dimensions that a normal hand cannot cover more than fifty percent of the orificial area.
  • the invention also relates to a swimming pool or a spa having any one or more of the embodiments described or defined herein fitted thereto.
  • FIG 1. is a cross sectional view of a first embodiment of the invention
  • FIG. 2 is a perspective view from behind of a second embodiment of the invention
  • FIG. 3 is a front plan view of the second embodiment of the invention.
  • FIGS. 4-6 shows detail of the grill of the second embodiment of the invention.
  • the outlet arrangement generally comprises a housing 1 defining a chamber 2 within the housing.
  • the chamber is adapted to be fitted into a hole formed in the wall 3 of a container 4 such as might be a swimming pool or spa.
  • the housing is preferably fitted low through the wall of the container or even on the floor.
  • the housing is generally cup shaped with an open end of the housing defines an outlet aperture 5. Whilst a cup shaped chamber housing is described, it is to be understood that many other shapes are possible, provided that a low pressure chamber is achieved, that communicates such low pressure to the outlet aperture.
  • a flange 6 is formed on the outside of the open end of the housing so that the housing can be fitted into the wall of the container from the inside with the flange abutting the inside of the container wall 3.
  • a sealant is used to make the fitting of the housing water tight, the pressure of water within the container, assisting with this sealing process, where elastomeric sealants are used. It might be desired to use a rubber washer, or alternative commonly known sealants such as those based on silicone, or perhaps the housing can simply be rigidly welded or glued to the wall or floor of the container.
  • a vent sleeve 7 over which a vent pipe can be fitted extends upwardly from the chamber 2 and in the first embodiment extends directly from an uppermost portion of the housing.
  • the second illustrated embodiment has the vent extending upwardly from a vent aperture which passes through the closed end of the cup shaped housing.
  • An elbow 8 is fitted to a generally horizontally positioned vent sleeve 7.
  • the vent 9 extends upwardly to at least above the level of water within the container, because otherwise water will obviously drain from the vent.
  • the vent illustrated in FIG. 1 includes a covered upper portion to prevent ingress of debris.
  • the vent is generally adjacent to the container. Furthermore by positioning the chamber directly in contact with the container or at least in low pressure communication therewith and consequently placing the vent in low pressure communication with the outlet aperture provides that the negative pressure influence of a drain or a pump can be more effectively alleviated.
  • a first chamber outlet defined within a first outlet sleeve 10 of the illustrated embodiments is used to feed to a recirculation pump in the case of a swimming pool and spa.
  • a second chamber outlet defined within second outlet sleeve 11 is used as a drain or feed to a jet pump, and is perhaps covered with a sealing cap 12, as illustrated in FIG. 2 or extended to a stopcock.
  • one or both of these outlets is adapted on the interior of the chamber to receive the cuff of a flexible cleaning hose.
  • the open end of the housing is covered with a cover 13, in the form of a grill fitting over the open end, and engages in the embodiment shown in FIG. 1 over the edges of the flange 6 of the housing.
  • the grill is generally in the form of evenly spaced apart and parallel bars 14 extending across a circular frame 15.
  • a bead 16 extends outwardly from the flange, and a corresponding groove 17 in the circular frame of the grill complements the bead, so as to provide a snap-fit of the cover onto the housing. Where it is desired to pull the cover off, this can be achieve simply by applying sufficient force via a lever tool through the cover apertures to deform the circular frame of the cover, so as to lift off the groove from the bead.
  • the cover fits within the housing, the flange being provided with a suitable internal recess 18 into which the cover fits.
  • the periphery of the housing recess 18 has three indent hollows 19 into which three complementary pips 20 on the circular frame of the cover fit to provide a snap engagement therewith.
  • a key 21 is provided on the cover with a complementary groove 22 in the housing recess 18 for easy alignment of the cover within the housing recess.
  • FIG. 5 A side elevation of the recess is provided by FIG. 5.
  • the extent of the snap fit provided by both of these embodiments is such that the cover cannot be lifted off by hand, and requires a special tool, to ensure that the cover is not lifted off outside the servicing requirements. stream, and are generally elongate so as to reduce to the likelihood, and at least the extent of vortexing of water as it passes through the cover.
  • the reduction in vortexing greatly assists the capacity of articles of clothing or hair being entangled on the downstream side of the cover, or caught in the container outlet aperture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Epidemiology (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Water Supply & Treatment (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

L'invention concerne un système pour l'évacuation d'eau convenant à des piscines, des bains d'eau thermale et des applications similaires. Le système d'évacuation comprend un logement (1) avec une ouverture d'évacuation (5) de l'eau d'un bain thermal ou d'une piscine en communication basse pression avec un évent (9). L'évent (9) est disposé au-dessus de la surface de l'eau de la piscine ou du bain d'eau thermale. Une sortie (10, 11) du logement est en communication avec aussi bien l'ouverture d'évacuation (5) du bassin qu'avec l'évent (9) pour que lorsqu'une pression négative est induite dans l'ouverture d'évacuation (5) du bassin par une pompe de recirculation, par un pompe à jet de bain d'eau thermale, ou encore par le drainage de l'eau sous l'effet de la gravité, la pression négative à l'ouverture d'évacuation (5) du bain d'eau thermale ou de la piscine soit limitée. De préférence, la chambre basse pression (2) est contiguë à la piscine et en communication avec elle; également, l'évent (9) et la sortie (10, 11) du logement partent de la chambre basse pression (2).
PCT/AU1992/000388 1992-02-19 1992-07-27 Systeme pour l'evacuation d'eau Ceased WO1993017207A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPL096992 1992-02-19
AUPL0969 1992-02-19

Publications (1)

Publication Number Publication Date
WO1993017207A1 true WO1993017207A1 (fr) 1993-09-02

Family

ID=3775999

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000388 Ceased WO1993017207A1 (fr) 1992-02-19 1992-07-27 Systeme pour l'evacuation d'eau

Country Status (1)

Country Link
WO (1) WO1993017207A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735807A1 (fr) * 1995-06-23 1996-12-27 Ville D Avignon Procede et dispositif de securite et d'alarme pour piscines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689017A (en) * 1951-06-02 1954-09-14 J A Zurn Mfg Co Surface drain
US3571818A (en) * 1968-11-27 1971-03-23 Jacuzzi Research Inc Hydrotherapy tank assembly
US3940807A (en) * 1974-08-13 1976-03-02 Baker Hydro, Inc. Safety suction outlet for pools
US4115878A (en) * 1977-03-14 1978-09-26 South Pacific Industries Spa safety drain
AU4853785A (en) * 1984-10-12 1986-04-17 Clark Rubber Ltd. Swim pool suction outlet cover

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689017A (en) * 1951-06-02 1954-09-14 J A Zurn Mfg Co Surface drain
US3571818A (en) * 1968-11-27 1971-03-23 Jacuzzi Research Inc Hydrotherapy tank assembly
US3940807A (en) * 1974-08-13 1976-03-02 Baker Hydro, Inc. Safety suction outlet for pools
US4115878A (en) * 1977-03-14 1978-09-26 South Pacific Industries Spa safety drain
AU4853785A (en) * 1984-10-12 1986-04-17 Clark Rubber Ltd. Swim pool suction outlet cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2735807A1 (fr) * 1995-06-23 1996-12-27 Ville D Avignon Procede et dispositif de securite et d'alarme pour piscines

Similar Documents

Publication Publication Date Title
US6751814B2 (en) Whirlpool bath filter and suction device
US5706973A (en) Drinking cup and cover with flow control elements
US4426286A (en) Skimmer
DE60306958T2 (de) Verbindung einer Flüssigkeitsleitung mit einer drehbaren Düse
US6880182B2 (en) Spa apparatus
US5418984A (en) Hydrotherapy seat structure for a hydrotherapy spa, tub or swimming pool
US5053205A (en) Solar propelled chemical dispenser
ES2307815T3 (es) Disificador de productos quimicos, sistema y procedimiento.
US4640783A (en) Ozone injection method and apparatus
CN214833209U (zh) 一种喷杆、智能马桶盖以及智能马桶
US4853124A (en) Device for producing bubbling stream of water in bathtub
WO1993017207A1 (fr) Systeme pour l'evacuation d'eau
US9856667B2 (en) Low gravity fed water system without submersed drains within the bathing chamber for pools and spas
US20060080772A1 (en) System of bath, shower, drying, massage and sauna for people
EP0838184A1 (fr) Gobelet et couvercle à éléments régulateurs de débit
CN209114919U (zh) 按摩水池
CN110158730A (zh) 一种清洗更佳的智能马桶
US20210324620A1 (en) Anti-backflow device and bidet
US7424753B2 (en) SPA with plastic foot plate and seal therefor
JP3634179B2 (ja) 気泡水流噴射浴槽
CN212465816U (zh) 可适应不同身高的洗手装置
CN200984356Y (zh) 腔道冲洗器
CN211432763U (zh) 水槽清洗机及其腔体
KR101098291B1 (ko) 악취 제거용 양변기
CN210586254U (zh) 一种果蔬清洗净化机的自清洁喷淋装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR CA CH CS DE DK ES FI GB HU JP KP KR LK LU MG MN MW NL NO PL RO RU SD SE US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LU MC NL SE BF BJ CF CG CI CM GA GN ML MR SN TD TG

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642