EP0891461B1 - Device for draining rainwater from the roof surface of a building - Google Patents

Device for draining rainwater from the roof surface of a building Download PDF

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Publication number
EP0891461B1
EP0891461B1 EP97919468A EP97919468A EP0891461B1 EP 0891461 B1 EP0891461 B1 EP 0891461B1 EP 97919468 A EP97919468 A EP 97919468A EP 97919468 A EP97919468 A EP 97919468A EP 0891461 B1 EP0891461 B1 EP 0891461B1
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EP
European Patent Office
Prior art keywords
receptacle
fins
pipe
drainage device
wall
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
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EP97919468A
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German (de)
French (fr)
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EP0891461A1 (en
Inventor
Bruno Gertsch
Daniel Grojean
Patrick Le Naour
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Pont a Mousson SA
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Pont a Mousson SA
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Publication of EP0891461A1 publication Critical patent/EP0891461A1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the present invention relates to devices for evacuating rainwater from the surface of a roof building and relates more particularly to closed or siphon discharge devices.
  • Such a flow is characterized by the fact that the line in which the water flows is full, without air entrainment.
  • a full cover, the section of which is intermediate between the section of the orifice and that of the tray is fixed above the hole and assembled with a strainer whose wall surrounds the inlet opening of the pipe.
  • the strainer is pierced with holes whose surface is such that the ratio between the total area of passage of the perforated screen of the strainer and the pipe section evacuation is between 2.5 and 3.5.
  • a rainwater evacuation device which includes a vertical evacuation pipe surmounted by a section larger than that of the pipe and intended to be flush the roof surface, an anti-vortex device, intermediate section between that of the pipe and that of the tray, disposed in said tray above the end outlet pipe inlet.
  • This anti-vortex device has a wall full deflector with three fins devices in contact with the bottom of the tank and extending into the drain pipe by defining three radial passages for water.
  • This solid wall is arranged opposite a curved portion of the wall of the tray to form, with the latter, passages for the water.
  • an evacuation device stormwater from the surface of a building roof comprising a vertical discharge pipe surmounted by a tank with a cross-section larger than that of the pipe and intended for flush with the roof surface and an anti-vortex device of intermediate section between that of the pipe and that of the tank, placed in said tank, above the inlet end of the drain hose, the device anti-vortex with a solid wall provided with fins axial peripherals, external to said solid wall, in contact with the bottom of the tank surrounding the inlet of the pipe evacuation and defining with said bottom passages radials for the water towards said drainage pipe, characterized in that the solid wall of the anti-vortex device is conical in shape and in that it is arranged next to a frustoconical bottom portion of the tank for form with it a passage for water, the relationship between the section of the passage for defined water between the conical wall of the anti-vortex device and the frustoconical portion of the tank on the one hand and that of the on the other hand, being close to 1.
  • FIG 1 there is shown a device rainwater evacuation according to the invention set place in a roof slab D.
  • the pot 2 has at its end flush with the slab D, a plate 4 of generally square shape placed on slab D and thus ensuring the tightness of the connection between the slab and the evacuation device.
  • an anti-vortex device 5 having a solid conical wall 6 of conicity directed towards the end of the pipe 1 connected to the pot 2.
  • the conical wall 6 is arranged opposite the portion of bottom 3 of frustoconical shape and forms therewith a passage 6a for water to the drain pipe 1.
  • axial fins 7 regularly distributed.
  • the evacuation device is fitted with a hat or strike guard 8 surrounded by a straw system 9 placed on the plate 4 and intended to retain the majority of debris or flakes that peel off from certain coatings roof and who risk blocking the horizontal pipes of a rainwater drainage system.
  • the fins 7 are connected to the conical wall 6 in an area intermediate in their length and are advantageously diametrically opposite two by two and directed according to their width towards the center of the conical wall 6.
  • the ends fins 7 located on the hollow side of the wall conical 6 and thereby turned towards the end of the bowl 2 carrying the plate 4 are interconnected by a strapping ring 10, while the ends of the fins 7 opposite to said ring end with tips 11 by which the anti-vortex device 5 rests on the bottom 12 of the bowl 2 which surrounds the orifice of the drain hose 1.
  • the anti-vortex device 5 comprises above of the frustoconical wall 6, an annular grid 14 formed by the conical wall 6, the strapping ring 10 and the portions of the fins 7 joining them together and below from the frustoconical wall a harrow for the passage of water between the portions of the fins 7 located below the frustoconical wall 6 and which are in contact with the bottom 12 from bowl 2.
  • the upper grid 14 prevents the formation of vortices in the bowl formed by the conical wall 6, while the harrow formed by the ends provided with tips 11 of fins 7 also prevents formation eddies in the streams of water entering hose 1.
  • the device anti-vortex 5 has centering pads 16 arranged at 120 ° to each other and making each projecting from an axial fin 7.
  • the studs 16 are inscribed in a circle of diameter equal to that of the pot or tank 2 and thus ensure the centering of the anti-vortex device in the pot.
  • the presence of the fins 7 causes a flow radial water from the periphery to the center of the bowl 2 and consequently prevents any formation of vortices likely to cause air to the pipe evacuation or stump 1.
  • the cap or strike guard 8 of the device has a domed shape and has roughly radial slots 20. It has a diameter adapted to that of bowl 2 and has axial fins 22 bearing on the rim of the bowl 2 regularly distributed around its periphery, one in two per example of these fins comprising a centering finger 24 intended to come into contact with the inner wall of the bowl or tray 2.
  • the number of axial fins 22 provided with fingers of centering can be chosen different.
  • the fins 22 define with the plate 2 of the bowl of the rainwater access passages 25 in the bowl 2.
  • the frustoconical wall 6 of the anti-vortex device 5 and the hat or strike guard 8 each have a central hole in which is engaged a rod of sliding fastening 26 comprising a head 27 and bearing at its end opposite to the head, a washer of blocking 28 after crushing of the corresponding end rod 26.
  • the anti-glitter system 9 is in fact a system filtering.
  • It consists of a sheet metal ring 30 perforated with a rim 31 for stopping debris. he can also be formed of a ring in a metallic mesh or textile or even foam.
  • the mesh For light rain generating a height of water on a roof lower than the height of the filter, the mesh retains glitter but not water.
  • the purpose of the upper plane or rim 31 of the filter is contain the glitter that can float when water begins to revolve around birth.
  • the glitter filter 9 therefore has a height which corresponds to the water height for which birth (so the channeling system) begins to operate as a siphoid and therefore cannot no longer be blocked by glitter (hydro-cleaning).

Abstract

A device including a vertical discharge pipe (1) on top of which a receptacle (2) flush with the roof surface and with a larger cross-section than that of the pipe is provided, and an anti-vortex device (5) with a cross-section greater than that of the pipe (1) and lesser than that of the receptacle (2) mounted inside said receptacle over the inlet end of the discharge pipe (1), characterised in that the anti-vortex device has a solid tapering wall (6) with peripheral axial wings (7) engaging the bottom portion of the receptacle surrounding the discharge pipe inlet and defining, with said bottom portion, radial channels for conducting water towards the discharge pipe, and in that the tapering wall (6) is aligned with a frustoconical portion (3) of the receptacle wall so as to form therewith a water passage (6a).

Description

La présente invention concerne les dispositifs d'évacuation des eaux pluviales de la surface d'un toit de bâtiment et se rapporte plus particulièrement aux dispositifs d'évacuation à écoulement fermé ou siphoïde.The present invention relates to devices for evacuating rainwater from the surface of a roof building and relates more particularly to closed or siphon discharge devices.

Un tel écoulement est caractérisé par le fait que la conduite dans laquelle s'écoule l'eau est pleine, sans entraínement d'air.Such a flow is characterized by the fact that the line in which the water flows is full, without air entrainment.

On connaít d'après FR 2 337 237, un conduit pour recueillir et évacuer les eaux pluviales à la surface du toit d'un bâtiment comportant un tuyau d'évacuation dont l'extrémité supérieure est assemblée avec un bac collecteur de section supérieure à celle de l'orifice d'entrée du tuyau. Le bord supérieur du bac est placé plus haut que ledit orifice.We know from FR 2 337 237, a conduit for collect and discharge rainwater from the surface of the roof of a building with a drainage pipe, the upper end is assembled with a tray manifold of section larger than that of the orifice inlet pipe. The upper edge of the tank is placed more higher than said orifice.

Un couvercle plein dont la section est intermédiaire entre la section de l'orifice et celle du bac est fixé au-dessus de l'orifice et assemblé avec une crépine dont la paroi entoure l'orifice d'entrée du tuyau. La crépine est percée de trous dont la surface est telle que le rapport entre la surface totale de passage de la paroi perforée de la crépine et la section du tuyau d'évacuation est compris entre 2,5 et 3,5.A full cover, the section of which is intermediate between the section of the orifice and that of the tray is fixed above the hole and assembled with a strainer whose wall surrounds the inlet opening of the pipe. The strainer is pierced with holes whose surface is such that the ratio between the total area of passage of the perforated screen of the strainer and the pipe section evacuation is between 2.5 and 3.5.

On connaít aussi, par le document GB-A-2 269 402, un dispositif d'évacuation des eaux pluviales qui comporte un tuyau vertical d'évacuation surmonté d'un bac de section supérieure à celle du tuyau et destiné à affleurer la surface de la toiture, un dispositif anti-vortex, de section intermédiaire entre celle du tuyau et celle du bac, disposé dans ledit bac au-dessus de l'extrémité d'entrée du tuyau d'évacuation.We also know, from GB-A-2 269 402, a rainwater evacuation device which includes a vertical evacuation pipe surmounted by a section larger than that of the pipe and intended to be flush the roof surface, an anti-vortex device, intermediate section between that of the pipe and that of the tray, disposed in said tray above the end outlet pipe inlet.

Ce dispositif anti-vortex comporte une paroi pleine formant déflecteur pourvue de trois ailettes périphériques en contact avec le fond du bac et se prolongeant dans le tuyau d'évacuation en définissant trois passages radiaux pour l'eau. Cette paroi pleine est disposée en regard d'une portion incurvée de la paroi du bac pour former, avec cette dernière, des passages pour l'eau.This anti-vortex device has a wall full deflector with three fins devices in contact with the bottom of the tank and extending into the drain pipe by defining three radial passages for water. This solid wall is arranged opposite a curved portion of the wall of the tray to form, with the latter, passages for the water.

Compte tenu du diamètre de 75 mm des tuyaux généralement utilisés pour de tels dispositifs, le diamètre du bac ou bol qui doit être associé au tuyau, est trop important, de sorte qu'il devient nécessaire de réaliser dans la toiture des chevêtres de renforcement des orifices de réception des dispositifs d'évacuation.Taking into account the 75 mm diameter of the pipes generally used for such devices, the diameter of the bowl or bowl which must be associated with the pipe, is too important, so it becomes necessary to realize in the roof of the aperture reinforcement headers for receiving evacuation devices.

Le coût de la pose de tels dispositifs s'en trouve accru.The cost of installing such devices is finds increased.

L'invention vise à remédier aux inconvénients précités des dispositifs connus en créant un dispositif d'évacuation qui tout en étant d'une construction simple, permette:

  • d'obtenir sur une toiture qui en est équipée, une hauteur d'eau la plus faible possible et dans tous les cas, inférieure à 55 mm pour le débit normal,
  • l'utilisation d'un bac ou bol de diamètre inférieure à 200 mm afin d'éviter de réaliser des chevêtres dans les trous ménagés dans la toiture pour recevoir les dispositifs, de tels chevêtres étant exigés conformément aux normes DTU lorsque le diamètre des trous dépasse 200 mm.
  • une retenue de débris entraínés par l'eau de pluie et notamment de paillettes se décollant de certains revêtements composites et risquant de boucher les conduits de faible diamètre et sans pente.
The invention aims to remedy the aforementioned drawbacks of known devices by creating a discharge device which, while being of simple construction, allows:
  • to obtain the lowest possible height of water on a roof fitted with it and in any case less than 55 mm for normal flow,
  • the use of a tub or bowl with a diameter of less than 200 mm in order to avoid making trimmers in the holes made in the roof to receive the devices, such trimmers being required in accordance with DTU standards when the diameter of the holes exceeds 200 mm.
  • a retention of debris entrained by rainwater and in particular of flakes peeling off from certain composite coatings and risking blocking the small diameter conduits and without slope.

Elle a donc pour objet un dispositif d'évacuation des eaux pluviales de la surface d'une toiture de bâtiment comprenant un tuyau vertical d'évacuation surmonté d'un bac de section supérieure à celle du tuyau et destiné à affleurer la surface de la toiture et un dispositif anti-vortex de section intermédiaire entre celle du tuyau et celle du bac, disposé dans ledit bac, au-dessus de l'extrémité d'entrée du tuyau d'évacuation, le dispositif anti-vortex comportant une paroi pleine pourvue d'ailettes périphériques axiales, extérieures à ladite paroi pleine, en contact avec le fond du bac entourant l'entrée du tuyau d'évacuation et définissant avec ledit fond des passages radiaux pour l'eau vers ledit tuyau d'évacuation, caractérisé en ce que la paroi pleine du dispositif anti-vortex est de forme conique et en ce qu'elle est disposée en regard d'une portion de fond tronconique du bac pour former avec cette dernière un passage pour l'eau, le rapport entre la section du passage pour l'eau défini entre la paroi conique du dispositif anti-vortex et la portion à fond tronconique du bac d'une part et celle du tuyau d'évacuation d'autre part, étant voisin de 1. It therefore relates to an evacuation device stormwater from the surface of a building roof comprising a vertical discharge pipe surmounted by a tank with a cross-section larger than that of the pipe and intended for flush with the roof surface and an anti-vortex device of intermediate section between that of the pipe and that of the tank, placed in said tank, above the inlet end of the drain hose, the device anti-vortex with a solid wall provided with fins axial peripherals, external to said solid wall, in contact with the bottom of the tank surrounding the inlet of the pipe evacuation and defining with said bottom passages radials for the water towards said drainage pipe, characterized in that the solid wall of the anti-vortex device is conical in shape and in that it is arranged next to a frustoconical bottom portion of the tank for form with it a passage for water, the relationship between the section of the passage for defined water between the conical wall of the anti-vortex device and the frustoconical portion of the tank on the one hand and that of the on the other hand, being close to 1.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels :

  • la Fig. 1 est une vue en élévation et en section transversale du dispositif d'évacuation d'eaux pluviales suivant l'invention en place dans une dalle de toiture ;
  • la Fig. 2 est une vue éclatée du dispositif anti-vortex et du couvercle ou garde-grève avec leur tige d'assemblage retirés du bac.
The invention will be better understood on reading the description which follows, given solely by way of example and made with reference to the appended drawings, in which:
  • Fig. 1 is a view in elevation and in cross section of the rainwater evacuation device according to the invention in place in a roof slab;
  • Fig. 2 is an exploded view of the anti-vortex device and of the cover or strike guard with their assembly rod removed from the tank.

Sur la figure 1, on a représenté un dispositif d'évacuation d'eau pluviale suivant l'invention mis en place dans une dalle de toiture D.In Figure 1, there is shown a device rainwater evacuation according to the invention set place in a roof slab D.

Il comporte principalement un tuyau vertical 1 d'évacuation de l'eau également appelé moignon surmonté d'un bac ou pot 2 de forme générale cylindrique de section supérieure à la section du tuyau 1 et relié à celui-ci par une portion de fond 3 de forme tronconique.It mainly comprises a vertical pipe 1 also called stump topped of a tub or pot 2 of generally cylindrical section greater than the cross-section of the pipe 1 and connected to it by a bottom portion 3 of frustoconical shape.

Le pot 2 comporte à son extrémité affleurant la dalle D, une platine 4 de forme générale carrée posée sur la dalle D et assurant ainsi l'étanchéité de la liaison entre la dalle et le dispositif d'évacuation.The pot 2 has at its end flush with the slab D, a plate 4 of generally square shape placed on slab D and thus ensuring the tightness of the connection between the slab and the evacuation device.

Dans le pot 2 est placé un dispositif anti-vortex 5 comportant une paroi conique pleine 6 de conicité dirigée vers l'extrémité du tuyau 1 reliée au pot 2. La paroi conique 6 est disposée en regard de la portion de fond 3 de forme tronconique et forme avec celle-ci un passage 6a pour l'eau vers le tuyau d'évacuation 1. A la périphérie extérieure de la paroi conique 6 sont prévues des ailettes axiales 7 régulièrement réparties. Le dispositif d'évacuation est muni d'un chapeau ou garde-grève 8 entouré par un système anti-paillette 9 posé sur la platine 4 et destiné à retenir la majorité de débris ou des paillettes qui se décollent de certains revêtements de toiture et qui risqueraient de boucher les conduites horizontales d'une installation d'évacuation d'eaux pluviales.In pot 2 is placed an anti-vortex device 5 having a solid conical wall 6 of conicity directed towards the end of the pipe 1 connected to the pot 2. The conical wall 6 is arranged opposite the portion of bottom 3 of frustoconical shape and forms therewith a passage 6a for water to the drain pipe 1. At the outer periphery of the conical wall 6 are provided axial fins 7 regularly distributed. The evacuation device is fitted with a hat or strike guard 8 surrounded by a straw system 9 placed on the plate 4 and intended to retain the majority of debris or flakes that peel off from certain coatings roof and who risk blocking the horizontal pipes of a rainwater drainage system.

Ainsi qu'on peut le voir à la figure 2, les ailettes 7 sont reliées à la paroi conique 6 dans une zone intermédiaire de leur longueur et sont avantageusement diamétralement opposées deux à deux et dirigées selon leur largeur vers le centre de la paroi conique 6. Les extrémités des ailettes 7 situées du côté du creux de la paroi conique 6 et de ce fait tournées vers l'extrémité du bol 2 portant la platine 4 sont reliées entre elles par un anneau de cerclage 10, tandis que les extrémités des ailettes 7 opposées audit anneau se terminent par des pointes 11 par lesquelles le dispositif anti-vortex 5 repose sur le fond 12 du bol 2 qui entoure l'orifice du tuyau d'évacuation 1.As can be seen in Figure 2, the fins 7 are connected to the conical wall 6 in an area intermediate in their length and are advantageously diametrically opposite two by two and directed according to their width towards the center of the conical wall 6. The ends fins 7 located on the hollow side of the wall conical 6 and thereby turned towards the end of the bowl 2 carrying the plate 4 are interconnected by a strapping ring 10, while the ends of the fins 7 opposite to said ring end with tips 11 by which the anti-vortex device 5 rests on the bottom 12 of the bowl 2 which surrounds the orifice of the drain hose 1.

Ainsi, le dispositif anti-vortex 5 comporte au-dessus de la paroi tronconique 6, une grille annulaire 14 formée par la paroi conique 6, l'anneau de cerclage 10 et les portions des ailettes 7 les réunissant et au-dessous de la paroi tronconique une herse pour le passage de l'eau entre les portions des ailettes 7 situées en-dessous de la paroi tronconique 6 et qui sont en contact avec le fond 12 du bol 2.Thus, the anti-vortex device 5 comprises above of the frustoconical wall 6, an annular grid 14 formed by the conical wall 6, the strapping ring 10 and the portions of the fins 7 joining them together and below from the frustoconical wall a harrow for the passage of water between the portions of the fins 7 located below the frustoconical wall 6 and which are in contact with the bottom 12 from bowl 2.

La grille supérieure 14 empêche la formation de tourbillons dans la cuvette formée par la paroi conique 6, tandis que la herse formée par les extrémités pourvues de pointes 11 des ailettes 7 empêche également la formation de tourbillons dans les courants d'eau qui pénètrent dans le tuyau 1.The upper grid 14 prevents the formation of vortices in the bowl formed by the conical wall 6, while the harrow formed by the ends provided with tips 11 of fins 7 also prevents formation eddies in the streams of water entering hose 1.

On voit en outre sur la figure 2 que le dispositif anti-vortex 5 comporte des plots de centrage 16 disposés à 120° les uns par rapport aux autres et faisant chacun saillie par rapport à une ailette axiale 7. It can also be seen in FIG. 2 that the device anti-vortex 5 has centering pads 16 arranged at 120 ° to each other and making each projecting from an axial fin 7.

Les plots 16 s'inscrivent dans un cercle de diamètre égal à celui du pot ou bac 2 et assurent ainsi le centrage du dispositif anti-vortex dans le pot.The studs 16 are inscribed in a circle of diameter equal to that of the pot or tank 2 and thus ensure the centering of the anti-vortex device in the pot.

La présence des ailettes 7 provoque un écoulement radial de l'eau de la périphérie vers le centre du bol 2 et empêche par conséquent toute formation de tourbillons susceptibles d'entraíner de l'air vers le tuyau d'évacuation ou moignon 1.The presence of the fins 7 causes a flow radial water from the periphery to the center of the bowl 2 and consequently prevents any formation of vortices likely to cause air to the pipe evacuation or stump 1.

Le chapeau ou garde-grève 8 du dispositif a une forme bombée et comporte des fentes 20 à peu près radiales. Il a un diamètre adapté à celui du bol 2 et présente des ailettes axiales 22 d'appui sur le rebord du bol 2 régulièrement réparties à sa périphérie, une sur deux par exemple de ces ailettes comportant un doigt de centrage 24 destiné à venir en contact avec la paroi intérieure du bol ou bac 2. Le nombre d'ailettes axiales 22 munies de doigts de centrage peut être choisi différent.The cap or strike guard 8 of the device has a domed shape and has roughly radial slots 20. It has a diameter adapted to that of bowl 2 and has axial fins 22 bearing on the rim of the bowl 2 regularly distributed around its periphery, one in two per example of these fins comprising a centering finger 24 intended to come into contact with the inner wall of the bowl or tray 2. The number of axial fins 22 provided with fingers of centering can be chosen different.

Les ailettes 22 définissent avec la platine 2 du bol des passages 25 d'accès de l'eau pluviale dans le bol 2.The fins 22 define with the plate 2 of the bowl of the rainwater access passages 25 in the bowl 2.

La paroi tronconique 6 du dispositif anti-vortex 5 et le chapeau ou garde-grève 8 comportent chacun un orifice central dans lequel est engagée une tige de solidarisation coulissante 26 comportant une tête 27 et portant à son extrémité opposée à la tête, une rondelle de blocage 28 après écrasement de l'extrémité correspondante de la tige 26.The frustoconical wall 6 of the anti-vortex device 5 and the hat or strike guard 8 each have a central hole in which is engaged a rod of sliding fastening 26 comprising a head 27 and bearing at its end opposite to the head, a washer of blocking 28 after crushing of the corresponding end rod 26.

Cette tige permet un léger débattement axial du garde-grève 8 par rapport au dispositif anti-vortex 5 et favorise :

  • le bon positionnement du dispositif anti-vortex 5 dans le bol 2,
  • le maintien en place du garde-grève 8 lors de grands vents,
  • la fixation sans boulonnerie, du dispositif anti-vortex 5 maintenu en place, lors du fonctionnement, par la dépression créée et hors fonctionnement, par la tige centrale 26.
This rod allows a slight axial movement of the strike guard 8 relative to the anti-vortex device 5 and promotes:
  • the correct positioning of the anti-vortex device 5 in the bowl 2,
  • keeping the strike guard 8 in high winds,
  • fixing without bolts, the anti-vortex device 5 held in place, during operation, by the vacuum created and not operating, by the central rod 26.

Le rapport entre la section SI du passage 6a défini entre la paroi conique 6 du dispositif anti-vortex 5 et la portion de fond tronconique 3 de liaison du tuyau d'évacuation 1 avec le bol 2 d'une part, et la section S2 dudit tuyau (Fig. 1) d'autre part, est suivant l'invention choisi voisin de 1.The relationship between the SI section of passage 6a defined between the conical wall 6 of the anti-vortex device 5 and the frustoconical bottom portion 3 of the pipe connection 1 with bowl 2 on the one hand, and section S2 said pipe (Fig. 1) on the other hand, is according to the invention chosen close to 1.

Compte tenu de la section du tuyau d'évacuation, on peut donc utiliser un dispositif anti-vortex de section relativement petite et de ce fait, une naissance de dimensions raisonnables avec de bonnes caractéristiques de débit.Given the cross-section of the drain pipe, we can therefore use a section anti-vortex device relatively small and therefore a birth of reasonable dimensions with good characteristics of debit.

Le système anti-paillettes 9 est en fait un système filtrant.The anti-glitter system 9 is in fact a system filtering.

Il est constitué par un anneau 30 en tôle perforée muni d'un rebord 31 d'arrêt de débris. Il peut également être formé d'un anneau en une maille métallique ou textile ou encore en mousse.It consists of a sheet metal ring 30 perforated with a rim 31 for stopping debris. he can also be formed of a ring in a metallic mesh or textile or even foam.

Pour de faibles pluies engendrant une hauteur d'eau sur toiture inférieure à la hauteur du filtre, la maille retient les paillettes mais pas l'eau.For light rain generating a height of water on a roof lower than the height of the filter, the mesh retains glitter but not water.

Le plan supérieur ou rebord 31 du filtre a pour but de contenir les paillettes qui peuvent flotter lorsque l'eau se met à tourner autour de la naissance.The purpose of the upper plane or rim 31 of the filter is contain the glitter that can float when water begins to revolve around birth.

Pour des pluies plus fortes, l'eau et les paillettes submergent le filtre. Le filtre anti-paillettes 9 a donc une hauteur qui correspond à la hauteur d'eau pour laquelle la naissance (donc le système de canalisation) commence à fonctionner en siphoïde et donc ne peut plus être obturé par les paillettes (hydrocurage).For heavier rains, water and glitter overwhelms the filter. The glitter filter 9 therefore has a height which corresponds to the water height for which birth (so the channeling system) begins to operate as a siphoid and therefore cannot no longer be blocked by glitter (hydro-cleaning).

Claims (10)

  1. Device for draining rainwater from the surface of a roof of a building which comprises a vertical discharge pipe (1) topped by a receptacle (2) having a greater cross-section than that of the pipe and intended to be flush with the surface of the roof, and an anti-vortex device (5) having a cross-section in between that of the pipe (1) and that of the receptacle (2), disposed in the said receptacle above the inlet end of the discharge pipe (1), the anti-vortex device having a solid wall (6) provided with axial peripheral fins (7) on the outside of the said solid wall (6) which arc in contact with the base of the receptacle surrounding the inlet of the discharge pipe and define with the said base radial channels for the water towards the said discharge pipe, characterised in that the solid wall of the anti-vortex device is of conical shape and that it is disposed facing a base portion (3) of the receptacle in the shape of a truncated cone in order to form with this latter a channel (6a) for the water, the ratio between the cross-section of the channel (6a) for the water defined between the conical wall of the anti-vortex device and the base portion (3) of the receptacle in the shape of a truncated cone on the one hand and that of the discharge pipe (1) on the other hand being about 1.
  2. Drainage device according to the preceding claim, characterised in that the conical wall (6) is connected to the axial fins (7) in an intermediate zone of the length of the fins, the ends of the fins situated beside the hollow of the conical wall (6) being connected by an encircling ring (10) in order to form with the conical wall a grille (14) which prevents the formation of turbulence in the cup formed by the conical wall, whilst the ends of the fins situated beside the tip of the conical wall (6) delimit with the conical wall (6) and the base (12) of the receptacle with which they are in contact a framework which prevents the formation of turbulence in the currents of water which penetrate into the pipe (1).
  3. Drainage device according to Claim 2, characterised in that the fins (7) of the anti-vortex device (5) have their width directed towards the centre of the conical wall (6).
  4. Drainage device according to one of Claims 2 and 3, characterised in that the anti-vortex device includes centring lugs (16) which each project with respect to an axial fin (7) and are arranged in a circle with a diameter equal to that of the receptacle (2).
  5. Drainage device according to one of Claims I to 4, characterised in that the receptacle (2) has at its end intended to be flush with the surface of the roof a plate (4) for sealing the connection between the roof and the drainage device.
  6. Drainage device according to one of Claims 1 to 5, characterised in that it also includes a cap or guard (8) of convex shape with a diameter adapted to that of the receptacle (2) and having axial fins (22) for support on the rim of the receptacle (2) which are regularly distributed on its periphery, certain ones at least of the said fins having a centring lug (24) intended to come into contact with the internal wall of the receptacle (2), the said supporting fins defining channels allowing access of the rainwater into the receptacle (2).
  7. Drainage device according to Claim 6, characterised in that the anti-vortex device (5) and the cap or guard (8) each have a central opening, a sliding rod for connecting the anti-vortex device (5) to the cap (8) being engaged in the said openings, the said rod (26) having a head (27) and bearing on its end opposite the head a washer (28) for locking of the corresponding end of the rod (26) after compression.
  8. Drainage device according to one of Claims 6 and 7, characterised in that it further includes a filter system (9) surrounding the said cap or guard (8), the said filter system being intended to stop the debris such as flakes which become detached from certain roof coatings.
  9. Drainage device according to Claim 8, characterised in that the filter system is a ring (30) made from perforated sheet metal provided with a rim (31) to stop debris which is placed on the plate (4) of the receptacle (2).
  10. Drainage device according to Claim 8, characterised in that the filter system is a ring made from a metal or textile mesh or from foam.
EP97919468A 1996-04-05 1997-04-02 Device for draining rainwater from the roof surface of a building Expired - Lifetime EP0891461B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9604355A FR2747144B1 (en) 1996-04-05 1996-04-05 DEVICE FOR DRAINING RAINWATER FROM THE SURFACE OF A BUILDING ROOF
FR9604355 1996-04-05
PCT/FR1997/000593 WO1997038184A1 (en) 1996-04-05 1997-04-02 Device for draining rainwater from the roof surface of a building

Publications (2)

Publication Number Publication Date
EP0891461A1 EP0891461A1 (en) 1999-01-20
EP0891461B1 true EP0891461B1 (en) 2000-08-30

Family

ID=9490989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919468A Expired - Lifetime EP0891461B1 (en) 1996-04-05 1997-04-02 Device for draining rainwater from the roof surface of a building

Country Status (13)

Country Link
EP (1) EP0891461B1 (en)
CN (1) CN1114020C (en)
AT (1) ATE195992T1 (en)
DE (1) DE69702971T2 (en)
DK (1) DK0891461T3 (en)
ES (1) ES2150242T3 (en)
FR (1) FR2747144B1 (en)
GR (1) GR3034207T3 (en)
HK (1) HK1018088A1 (en)
NO (1) NO311146B1 (en)
PT (1) PT891461E (en)
TR (1) TR199801995T2 (en)
WO (1) WO1997038184A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748590A1 (en) * 1997-09-20 1999-03-25 Norddeutsche Seekabelwerk Gmbh Drain cover particularly for flat roofs
GB2347451B (en) * 1999-03-01 2002-10-30 Marley Alutec Ltd Drainage assembly and anti-vortex fins therefor
FR2791722B1 (en) * 1999-04-01 2001-04-27 Pont A Mousson DEVICE FOR DRAINING RAINWATER WITH REGULATED FLOW
DE10026842A1 (en) * 2000-05-30 2002-01-03 Moeck Gmbh & Co Kg Geb Device for roof drainage
FR2862676B1 (en) 2003-11-21 2006-01-20 Saint Gobain Pont A Mousson LIQUID EXHAUST DEVICE AND CORRESPONDING LIQUID GUIDE DEVICE
DE10361532B3 (en) * 2003-12-23 2005-04-21 Axel Bohatsch Control valve with sand and leaf trap for drain in street or roadway has air access openings in sides of housing and float closing air valve when valve chamber is full of water
FR2927638A1 (en) * 2008-02-15 2009-08-21 Eroa Sarl DEVICE FOR REGULATING THE EVACUATION OF RAW WATER FROM A ROOF SURFACE
IT1395999B1 (en) * 2009-03-10 2012-11-09 Valsir Spa WATER DRAIN POCKET, IN PARTICULAR FOR SYSTEMS WITH A SIPHONIC EFFECT OF ROOF DRAINAGE
CN101906854B (en) * 2010-08-24 2012-02-22 北京泰宁科创雨水利用技术股份有限公司 Snow-melting pressure flow rain hopper
CN104088405B (en) * 2014-07-04 2016-07-06 南通沪望塑料科技发展有限公司 A kind of dewatering in siphon type collects reutilization system
WO2016190821A1 (en) * 2015-05-25 2016-12-01 Tac-M Company Limited Cover for water flow inlet
CN105421572B (en) * 2015-12-16 2017-08-25 江苏南方雄狮建设工程有限公司 A kind of anti-blocking easy to clean floor drain
CN109276939A (en) * 2017-07-19 2019-01-29 简佑家 Fluid circuit radome fairing and fluid circuit rectifier stack
CN111997281B (en) * 2020-07-17 2021-08-17 北京天艺科创雨水利用科技有限公司 Siphon rainwater fill for building drainage
CN114809467B (en) * 2022-07-01 2022-09-13 江苏禹润水务研究院有限公司 Siphon rainwater fill for building drainage
CN115341719A (en) * 2022-09-09 2022-11-15 山西二建集团有限公司 Roof siphon drainage and filter screen collecting system

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US1791512A (en) * 1929-10-17 1931-02-10 Schurman John Roof sump
US2079269A (en) * 1936-03-23 1937-05-04 David S Williams Drain
CH437153A (en) * 1965-12-24 1967-05-31 Etasa Ag Drainage inlet shaft
DE6903939U (en) * 1969-02-01 1969-05-22 Dynamit Nobel Ag WATER DRAIN FOR FLAT ROOFS
US4505814A (en) * 1983-04-18 1985-03-19 Tyler Pipe Adjustably extensible roof drain receptacle
GB2269402B (en) * 1992-08-07 1996-05-01 Fullflow Systems Ltd Drain outlet for a syphonic or full flowing drainage system
GB9302475D0 (en) * 1993-02-09 1993-03-24 Harmer Holdings Ltd High flow drains

Also Published As

Publication number Publication date
NO984652D0 (en) 1998-10-05
ES2150242T3 (en) 2000-11-16
ATE195992T1 (en) 2000-09-15
DK0891461T3 (en) 2000-12-18
WO1997038184A1 (en) 1997-10-16
GR3034207T3 (en) 2000-11-30
NO984652L (en) 1998-10-05
HK1018088A1 (en) 1999-12-10
NO311146B1 (en) 2001-10-15
EP0891461A1 (en) 1999-01-20
DE69702971D1 (en) 2000-10-05
DE69702971T2 (en) 2000-12-28
FR2747144A1 (en) 1997-10-10
FR2747144B1 (en) 1998-05-15
PT891461E (en) 2001-01-31
TR199801995T2 (en) 1999-01-18
CN1114020C (en) 2003-07-09
CN1215446A (en) 1999-04-28

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