Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
  • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
  • E03D11/08—Bowls with means producing a flushing water swirl
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
  • E03D11/02—Water-closet bowls ; Bowls with a double odour seal optionally with provisions for a good siphonic action; siphons as part of the bowl
  • E03D11/10—Bowls with closure elements provided between bottom or outlet and the outlet pipe; Bowls with pivotally supported inserts
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
  • E03D5/012—Special constructions of flushing devices, e.g. closed flushing system combined with movable closure elements in the bowl outlet

Definitions

• the present invention relates to a drainage device for a water closet bowl equipped with a siphon.
• WC bowls are generally fitted with a siphon mounted on the drain. It is a doubly bent tube, having the general shape of an "S".
• the siphon permanently contains a reserve of renewable liquid which constitutes a gas barrier, this in particular preventing the return of odors from the evacuator duct to the bowl. It is therefore an essential element in terms of hygiene and comfort in places of rest.
• a siphon must first be primed by being loaded with an over-level of a liquid mass (water) sufficient to compensate for the inertia of the volume to be drained and trigger the exchange process.
• this water supply must be extended in order to purify the waste water / clean water mixture, given the absence of a significant pressure or density differential between these two liquids.
• This has the shape of a section of cylindrical tube moving in a semi-cylindrical channel arranged below the opening bowl drain.
• a water supply is provided in the tube, to expel the droppings collected in the channel.
• This known device is not equipped with a siphon capable of preventing the rise of odors.
• a large mass of air prevails in the device assembly, including in the drainage area and in the shutter shutter.
• replacement of the water reserve contained in this one "could not be properly insured.
• the essential invention is to avoid the above-mentioned drawbacks by proposing a device which, while being simple and inexpensive, makes it possible to quickly and completely - or almost completely - replace the waste water present in the siphon, this with a reduced amount of water, substantially less than that which is necessary in traditional flushers.
• the main objective of the invention is therefore to save water consumption.
• Another objective is to reduce noise pollution.
• the device comprises a movable obturator shutter disposed between the bowl and the siphon, substantially in the plane corresponding to the level of water in equilibrium in the siphon, as well as a pressurized water supply means, just under the shutter.
• the device comprises a means for controlling the water inlet, such as a needle valve, slaved to the closing of the shutter;
• the device includes voluntary control means, allowing the shutter to be operated by hand or by foot; - the shutter is a hollow piece of flat shape, the underside of which is furnished with a series of holes, and the water intake takes place inside the shutter, so that the water is injected into the siphon through these holes; - The device includes additional means for supplying water to the lower part of the siphon.
• Figure 1 is a vertical section of a toilet bowl equipped with a siphon and provided with a discharge device according to the invention, the shutter being in the inactive position (retracted).
• Figure 2 is a partial view similar to Figure 1, but showing the flap in the active position (closed position).
• Figures 3 shows, in section, a variant of the shutter shutter.
• the figure is a schematic view illustrating the possibility of an additional water supply in the siphon.
• FIG. 1 we have designated by the reference 1 a toilet bowl, of traditional type, whose discharge opening 10 is connected to a drain siphon 2.
• This also of known type, is a doubly tube angled having the general shape of an "S". It comprises a descending part 20, a lower bend 21, a rising part 20 '. an upper elbow 22, and a discharge pipe 23 connected to the sewer.
• the water E contained in the siphon 2 constitutes a barrier preventing the gases from circulating between the bowl 1 and the conduit 23, which in particular prevents the rise of sewer odors.
• a movable flap 3 This consists of a plate which can slide in a suitable guide 1 1 forming an integral part of the bowl. 11 moves in a horizontal plane which, according to an essential characteristic of the invention, corresponds to the plane defined above. More specifically, the underside of the wafer 3 is in the plane _P or very slightly - for example at a distance of the order of 1 mm - above this plane.
• the shutter 3 can selectively occupy two extreme positions, namely:
• FIG. 2 - a second, active position, corresponding to FIG. 2, - in which it closes the opening 10.
• the shutter 3 is integral with a control rod 30 which emerges from the guide 11 through a suitable sealing plug 12.
• the displacement of the rod 30 (and of the shutter 3) is effected by a lever 6 which is articulated around an axis mounted on the bowl and the upper end of which carries an operating handle 61.
• the lower end 60 of the lever 6 carries a light receiving a pin 31 secured to the rod
• the device also includes a water supply system comprising a pipe 50 of pressurized water (at network pressure) and a distributor 5 (injection nozzle).
• a needle valve 4 capable of controlling the admission of water into the duct 50.
• the valve 4 has a feeler 40 which is actuated when the shutter 3 reaches its position of closing, which then causes the needle valve to open and the water to be injected into the siphon by the distributor 5. This injection takes place just below the flap 3, preferably obliquely against the underside of the flap .
• means are also provided for bringing water into the bowl 1, intended to ensure the cleaning of the wall of the bowl.
• These means which have not been shown in the drawings so as not to unnecessarily weigh down, are then advantageously also supplied by valve 4.
• the shutter 3 is normally open, retracted in its guide 1 1.
• the droppings fall through the opening 10 into the water E_ contained in the siphon.
• the shutter 3 then moves horizontally and closes the orifice 10. There is no - or practically no - air cushion interposed between the water reserve and the shutter, because the latter is located in plane P.
• the shutter controls the opening of the valve 4, causing the water to come in through the distributor 5.
• This stream of pressurized water drives the waste water mass E_, as symbolized by the arrows _f_ in figure 2.
• the pressurized water which is supplied directly pushes the waste water reserve and, in theory, a volume of new water equal to that of the reserve is sufficient to replace it.
• the shutter 7 has the shape of a flattened shower head. It is a hollow plate, the underside of which is furnished with a series of holes 72.
• the flap 7 is integral with a control rod 70 connected by a pin 71 to an operating mechanism, not shown, with a lever. or pedal.
• the rod 70 is pierced with a channel allowing the supply of pressurized water from a pipe 50 '.
• the latter is flexible so as not to impede the movements of the shutter. Thanks to this arrangement, the pressurized water arrives in the siphon in the form of rain, the various jets being regularly distributed, which makes it possible to further improve the discharge.
• an additional water supply is provided in the siphon.
• a pipe 80 supplies the lower part of the siphon 2 (arrows h). This additional water supply is advantageously also controlled by the needle valve 4.
• the combined action of arrivals 50 and 80 further promotes the discharge of residual water from the siphon.
• the relative values of the flow rates of the two water inlets can be adapted to requirements, if adjustable or interchangeable nozzles are provided.
• the flap is mounted in the device so as to be easily removable. It is thus easy to replace it periodically (after wear).
• a time-delay mechanism could be provided, of a type known per se, ensuring the automatic reopening of the shutter after a predetermined time (which corresponds to an assured emptying of the siphon).

Landscapes

• Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Aviation & Aerospace Engineering (AREA)
• Sanitary Device For Flush Toilet (AREA)
• Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=9409145

Family Applications (1)

Country Status (4)

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• 1991
  • 1991-12-05 DE DE69127558T patent/DE69127558D1/de not_active Expired - Lifetime
  • 1991-12-05 EP EP92902356A patent/EP0653002B1/de not_active Expired - Lifetime
  • 1991-12-05 AT AT92902356T patent/ATE157724T1/de not_active IP Right Cessation
  • 1991-12-05 WO PCT/FR1991/000970 patent/WO1993011311A1/fr active IP Right Grant

Non-Patent Citations (1)

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