Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
  • E03D1/02—High-level flushing systems
  • E03D1/14—Cisterns discharging variable quantities of water also cisterns with bell siphons in combination with flushing valves

Definitions

• the present invention relates to a device for a flushtank of a water-closet for providing a flushing with reduced liquid quantity according to the preamble of claim 1.
• flushtanks of a type used e.g. in water-closets are already known in the art since a long time.
• These flushtanks generally comprise a supply pipe provided with a closing clement controlled by means of a regulating means in form of a floater or a similar arrangement in the tank, a surplus pipe to conduct liquid from the flushtank to the water- closet bowl in case the regulating means fails, a large drain opening in the bottom of the flushtank against which a by gravity acting closing body is provided scaling againt a seat, the body being possibly raisable from the scat from the tank outside by means of a control device, preferably in form of a draw bar with a matching handle.
• a drawback of these fast draining tanks is that a previously determined and unchangeable liquid quantity is drained during each flushing. Simultaneously it is at various occasions desirable to possibly flush with a comparatively small liquid quantity, e.g. only a liquid quantity required for replacing the water in the gully trap of the water-closet.
• the document DE- 2,911,592 describes a device for a flushtank in a water-closet to provide a flushing with a reduced liquid quantity.
• This device consists of a generally pipclikc portion delimiting a separate and comparatively small liquid compartment in the tank in that it with its lower end contacts the periphery around the drain opening in the tank bottom and with its upper end lies above the water level of the tank and is provided with special openings so that the inside of the pipelike portion can communicate with the tank.
• the pipclikc portion is adapted to cooperate with the ordinary tank flushing control means in such a way that either only the liquid volume in the pipelike portion might by choice be drained or both the liquid volume in the pipelike portion and in the tank.
• the pipelike portion according to this document is not adapted to be operated by means of lifting the flushing tank ordinary control means and the pipelikc portion of the device has apparently a density being lower than that of the liquid in the tank and thus has to be movably controlled in the vertical direction in the tank and with a filled tank must automatically be kept towards the tank bottom by means of a rather complicated locking mechanism arranged at the flushing tank control device
• An object of the present invention is therefore to achieve a very simple device providing a flushing with a reduced liquid quantity and which in a very simple way might be arranged on an existing water-closet without any interference of the water-closet flushtank being necessary.
• the pipelike portion being provided with a gap in the lifting direction is connected with the water-closet control device and having a density larger than the density of the liquid so that it by means of the gravity contacts the periphery around the drain opening in the water- closet tank bottom, the liquid volume existing inside the pipelike portion can be drained in lifting the water-closet closing button from its scat, I .C without lifting the pipclikc portion and after a draining can be filled again through the communicating opening between the water-closet tank and the separate tank provided by the pipelikc portion If the closing button of the water-closet is lifted from its top position, l.d. so that even the the pipelike portion is lifted, the whole liquid volume of the flushtank is flowing through the drain opening In this way there is the possibility to choose between a minimal and maximal drain in a very simple way.
• Figure 1 is a vertical cross section of a flushtank ot a water-closet with a device according to the invention
• Figure 2 shows the device in figure 1 in another operating position
• Figure 3 shows the device in figure 1 in a further operating position
• Figure 4 is a perspective view of a practical embodiment of a pipelikc portion provided in the device according to the invention with separated components
• Figure 5 is a side view in a larger scale of the end of the pipelikc portion according to the area encircled in figure 4.
• FIGS 1 to 3 show a generally frequent flushtank, a socalled water-closet tank of a water-closet with generally horisontal walls, i.e. a bottom 1 and a cover 2.
• the container is in an already knowm manner connected to a water supply pipe provided with a closing element, controlled by means of a level control device, such as e.g. a here not shown floater.
• the flushtank is provided with a by-pass for passing water from the flushtank to the flushing bowl of the water-closet in case of any misbehaviour of the closing element, here not shown.
• a large drain opening 3 is situated with a corresponding seat 4, against which a closing body 5 is pressed by means of gravity.
• This closing body 5 can be lifted from the scat by means of a control device in form of a draw bar 6 with a matching handle 7 to be controlled from the outside of the tank.
• the device according to the invention is mounted into a flushtank of a conventional type and comprises a generally pipelike portion 8 delimiting a separate and comparatively small liquid compartment in the water-closet in contacting with its lower end 9 the periphery around the drain opening 3 in the bottom of the water-closet and with its upper end 10 lying above the the water level of the water-closet.
• the density of the pipelikc portion 8 is dimensioned in such a way that it is larger than the density of the water in the tank, the portion by means of gravity independent of the degree of water filling the tank always contacting the periphery around the drain opening 3 in the bottom 1 of the water-closet as long as it is not effected by any lifting force from the outside.
• a sleevelike body 11 is mounted on the draw bar 6 and can optionally be fixed along the rod.
• very flexible cords 12 arc stretched, by means of which the pipclikc portion 8 can be lifted from the tank bottom 1 , when the draw bar 6 by means of the handle is drawn in the upward direction as indicated with an arrow in figure 2 and 3, respectively.
• the cords 12 arc in some convenient known way fastened to the sleevelike body 1 1 and according to the firgures tied to the upper part of the pipelike portion by means of several thus formed holes 13 and locking means 14 provided at the cord ends.
• the length of the cords 12 arc adpatcd in such a way that the pipelike portion 8 is provided with a certain play in the lifting direction of the draw bar 6, this clearly being illustrated in the figures of the drawings and easily understood by studying them.
• the pipelike portion 8 is below at its end provided with special openings 15 for letting the pipelike portion communicate with the water-closet (not shown in figures 1 to 3, but illustrated in figures 4 and 5).
• These openings 15 are in the here described embodiment formed in that the end of the pipelikc portion 8 is provided with a undulating profile with alternating tops and valleys, the area between two neighbouring topa forming the required fluid connection so taht water in accordance with the arrows in figure 2 might flow into the compartment provided by the pipelikc portion 8.
• the described device has the following method of operation:
• the pipclike portion 8 When the water-closet is completely drained the pipclike portion 8 is under the influence of gravity resting against the bottom 1 of the water-closet and on top of the closing body 5 which itself is resting against the seat 4 of the drain opening 3.
• the compartment delimited by the pipclikc portion 8 In filling the water-closet tank with water via the supply pipe the compartment delimited by the pipclikc portion 8 is at the same time filled via the supply openings 15 in the end 9 of the pipclike portion 8 until the water-closet tank is in accordance with figure 1 filled with water.
• the pipelike portion 8 is in this embodiment manufactured in joining together two identically formed shcllike halves 8 1 and 8" of e.g. some plastic material, formed by means of a partition plane parallel to the centre axis of the pipelike portion 8. For achieving a generally tight and steady seam between the meeting edge portions of the two halves these are adapted to form a relative forming connection and comprise for this object corresponding grooves 16 and ribs 17.
• the two shellike halves 8', 8" are connected by means of snap-in connecting means 18, 18' arranged at these egdc portions.
• the invention is not limited to what has been described above and what is shown in the drawings, but can be shaped and modified without any restrictions within the scope of the inventive idea specified in the claims to follow.

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)
• Sanitary Device For Flush Toilet (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20403964

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Citations (3)

• 1996
  • 1996-09-20 SE SE9603439A patent/SE9603439L/sv not_active IP Right Cessation
• 1997
  • 1997-03-04 AU AU21109/97A patent/AU2110997A/en not_active Abandoned
  • 1997-03-04 WO PCT/SE1997/000375 patent/WO1998012393A1/en active Application Filing

Patent Citations (3)

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