EP3047076A1 - A toilet including a water trap having a conical part - Google Patents
A toilet including a water trap having a conical partInfo
- Publication number
- EP3047076A1 EP3047076A1 EP14771265.7A EP14771265A EP3047076A1 EP 3047076 A1 EP3047076 A1 EP 3047076A1 EP 14771265 A EP14771265 A EP 14771265A EP 3047076 A1 EP3047076 A1 EP 3047076A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- water trap
- conical part
- inlet
- nozzles
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 238000011010 flushing procedure Methods 0.000 claims abstract description 30
- 239000002245 particle Substances 0.000 description 8
- 101100204059 Caenorhabditis elegans trap-2 gene Proteins 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
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
- E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
- E03D2201/30—Water injection in siphon for enhancing flushing
Definitions
- a toilet including a water trap having a conical part
- the present invention relates to a toilet comprising of a bowl, a water trap including a conical part in the form of a curved cone with an inlet connected to the bowl, and a flushing system disposed to flush the water trap by generating a water vortex in the water trap.
- US2011 / 0016623 show a toilet that will flush water directly from incoming water supply pipe, and thus do not need a tank.
- the toilet includes a bowl and a U-shaped water trap having an inlet connected to the bowl and an outlet for connection to an outlet pipe.
- the water trap has the form of a curved cone which tapers in the direction of outlet.
- the flushing water is injected at the level of the water trap inlet and forms a downward flow in the water trap. Flow tapers downwards towards the curved part of the water trap and forms at that level, eddies that moves through the curved portion of the water trap, and in that way cleans the curved portion.
- JP2008045276 also show a toilet without a tank, that takes flushing water directly from the incoming water supply pipe.
- the toilet has two flush water inlets arranged in a manner that they together generate a vertical water vortex that extends from the bowl until curved portion of the water trap.
- the purpose of the vortex is that light particles in the bowl will accompany the flow of water from the bowl and get pulled down in the water trap.
- the object of the present invention is to provide an improved toilet requiring less water flow for flushing and that can be connected directly to the incoming water supply pipe, and thus does not need a water tank. This object is achieved with a toilet as defined in claim 1.
- a toilet according to the invention is characterized in that the conical part is designed with increasing diameter in a direction towards the outlet, wherein the diameter of the outlet of the conical part is larger than the diameter of the inlet of the conical part.
- the water trap is flushed by means of a vortex created in the trap by one or more water jets.
- the water trap has the form of a cone which is tapered towards the inlet.
- the vortex is generated in the narrow part of the cone and is spreading towards the wide part. Due to the increasing diameter toward the outlet of the cone, the shape and the centrifugal force contributes to having particles and water moving faster towards the wide end of the cone.
- Computer simulations have shown that an efficient emptying of particles in the water trap is achieved when the diameter increases towards the outlet. Due to the efficient emptying of the water trap, the toilet can be flushed with a reduced water flow.
- a toilet according to the invention it is possible to achieve sufficient flush power at the pressure and water flow rates encountered in a typical household without having to use a water tank. Further benefits of a toilet according to the invention are that it requires less material for production, requires less space as installed and requires less maintenance.
- a curved cone is meant that a wall of the conical part is curved or bent.
- the conical part is U-shaped, or the wall of the conical part is bent outwards.
- the outlet diameter is more than 10% greater than the inlet diameter, preferably more than 20% larger than the inlet diameter, and most preferably more than 30% larger than the inlet pipe diameter.
- the water trap has a tubular wall and comprises of at least one nozzle which is arranged to generate a water jet tangentially along the inside of the water trap wall.
- tangentially it is meant that the water jet is generated parallel to the surface of the water trap and substantially perpendicular the propagation of the water trap. Due to that the water jet is generated tangentially along the inner wall of the water trap, a vortex is formed along the water trap wall, which due to the water trap shape grows in size and speed in the direction of the water trap outlet.
- the nozzle is designed as an opening in the water trap wall.
- the water trap wall comprises of two wall parts arranged so that they partially overlap each other in the tangential direction and that the nozzle is designed as an opening between said wall parts. In this way, a water jet is in a simple manner generated tangentially along the inner wall surface of the water trap. This is a robust design without any moving parts.
- the flushing system comprises of at least two nozzles spaced from one another, and each of the nozzles is arranged to generate a water jet tangentially with water trap inner wall surface. Two nozzles provide two water jets and a more uniform vortex.
- the conical part has a curved portion and the nozzle is located between that curved portion and the inlet.
- the nozzle is located nearer the inlet than the curved portion.
- the flushing system has a connection that supplies flushing water directly from an incoming water supply pipe.
- the flushing system requires no water tank.
- the toilet includes more than two nozzles and a chamber to equalize and distribute the flow between the nozzles.
- a chamber to equalize and distribute the flow between the nozzles.
- Such chamber includes an exterior wall that encloses the water trap and the nozzles, and the outer wall is provided with an inlet opening for incoming water supply.
- the chamber serves to equalize the pressure in the water supply and to distribute the flow between the nozzles so that both nozzles provide same water flow rate. In this way, the water is distributed evenly among multiple nozzles.
- the conical part is tubular and partly turned inside out.
- the water trap comprises two wall parts arranged so that water can be trapped between the two wall parts.
- Figure 1 shows a cross section cut through an embodiment of a toilet according to the invention.
- Figure 2 shows a first example of a water trap to a toilet according to the invention.
- Figure 3 shows the toilet in figure 1 from a top view.
- Figure 4 shows an example of a flushing system for a toilet according to the invention.
- Figure 5 shows the flushing system of figure 4 in a perspective view.
- Figure 6 shows a second example of a flushing system for a toilet according to the invention.
- Figure 7 shows a second example of a water trap to a toilet according to the invention.
- Figure 8 shows the water trap in figure 7 from a top view.
- FIG. 1 shows a cross section cut through a toilet according to an embodiment of the invention.
- the toilet comprises a bowl 1, a water trap 2 in the form of a curved cone with an inlet 3 which is connected to the bowl, and an outlet 4 for connection to a sewer pipe 5, and a flushing system 6 arranged that upon activation, flush the water trap by generating a water vortex that travels towards the outlet.
- the sewer pipe 5 may be a part of toilet, or a separate part that is mounted in place.
- the flushing system 6 includes at least one nozzle.
- the embodiment shown in Figure 1 has two nozzles 7a-b.
- the toilet bowl shape is preferably gently sloping towards the water trap inlet 3.
- the toilet is preferably made of porcelain, but may also be made of other materials such as metal sheet or plastic.
- all or at least part of the water trap inner wall is coated with a layer of hydrophobic material.
- Preferably greater portion of the inner wall is coated with hydrophobic material.
- the water trap 2 is shown more in detail in Figure 2.
- the water trap has a substantially circular cross section. It is also possible to use other forms of cross section, for example an elliptical cross section.
- the water trap 2 is formed with increasing diameter towards the outlet 4. Diameter D2 of the outlet 4 is thus larger than the diameter Dl of the inlet 3.
- the water trap has the shape of a curved mathematical cone with the narrow portion towards the toilet bowl and the wide part at the outlet pipe.
- the water trap comprises of a narrow inlet 10, a lower curved portion 11 and a wide outlet 12.
- the narrow inlet portion 10 extends from the inlet 3 to the curved lower part 11 and wide outlet portion 12 extends from the outlet 4 to the curved lower portion 11.
- the narrow and the wide portion may have a curved shape.
- Outlet 4 has a diameter D2 which is more than 10% greater than the inlet diameter Dl, preferably more than 20% greater than inlet diameter Dl, and most preferably more than 30% larger than the inlet diameter Dl.
- the diameter Dl is 60 mm and the diameter D2 is 120 mm.
- the distance between the outlet and the bottom of the curved portion is the same or greater than the distance between the inlet and the bottom of the curved portion.
- the water trap has a tubular wall 13 and the nozzles 7a-b are formed as openings in the water trap wall.
- the nozzles 7a-b are distanced from each other.
- the nozzles are arranged on diametrically opposite sides of the inlet 3.
- the nozzles 7a-b are arranged in a manner to generate water jets tangentially with water trap inner wall surface. Due to the generation of the water jets tangential to the inner surface of the water trap it creates a rotating vortex that follows the water trap inner wall in the direction the outlet 4.
- the water jets start rotation of the water in the water trap and therefore generate a vortex that will pull particles.
- the vortex generated is cone shaped with an increasing diameter towards the outlet.
- the nozzles can also be arranged so as to generate water jets in an angle which differs from 90° relative to the water trap propagation.
- the water jets are generated at an angle to the water trap propagation direction in the range of 70 - 110°, or preferably in the range of 80 - 100°.
- the nozzles 7a-b should be arranged in the narrow section 10 of the water trap i.e. between the inlet 3 and the curved portion 11 in order for the water vortex to lead particles from the narrow portion 11 to the wide portion 12 of the water trap.
- the nozzles are arranged closer to the inlet 3 than the curved portion 11.
- Nozzles 7a-b are, for example, distanced about 3 cm below the inlet 3.
- Figure 3 shows the toilet in figure 1 from a top view.
- the flushing system includes a connection 9 for incoming water, for example in the form of externally threaded pin tube.
- the inlet 3 to the water trap is circular.
- FIGs 4 and 5 show an example of a flushing system, 6.
- Figure 4 shows the flushing system 6 as seen from above and
- Figure 5 shows the flushing system in a perspective view.
- the flushing system 6 comprises of a vortex generator in the form of two diametrically opposite nozzles.
- the water trap wall comprises of two curved wall parts 14a-b which partially overlaps each other in the tangential direction.
- the nozzles 7a-b are formed as openings between the wall parts 14a-b.
- the design of the wall portions 14a-b is such that the outflow of water will go strictly tangentially with the water trap inside.
- the wall parts 14a-b should overlap each other in a manner that water is led in the tangential direction.
- the opening area of each of the nozzles 7a-b is, for example, 1.5 to 2 cm 2 .
- the flushing system 6 comprises of a chamber 16 arranged in connection with the nozzles 17a-b.
- the chamber 16 is designed to equalize and distribute the flow between nozzles, so that there is the same pressure and flow of both the nozzles.
- Chamber 16 comprises of an outer wall 20 which encloses the water trap and the nozzles 7a-b.
- the chamber is defined by the wall 20 and part of the water trap wall.
- the chamber is provided with an inlet opening 17 which is directly connected to the connection 9 for the incoming water.
- FIG 6 shows a second example of a flushing system 20 to a toilet according to the invention.
- the flushing system 20 comprises of a vortex generator in the form a nozzle 21 arranged tangentially with water trap wall.
- Figure 7 shows a second example of a water trap for a toilet according to the invention.
- Figure 8 shows the water trap in figure 7 from a top view.
- Figure 7 shows a vertical cross section cut through the water trap.
- the water trap comprises a conical part 2' in the form of a curved cone with an inlet 3' which is connected to a bowl (not shown) and an outlet 4', and a flushing system 6' arranged that upon activation, flush the water trap by generating a water vortex in the conical part that travels towards the outlet 4'.
- the flushing system 6 includes at least one nozzle.
- the shape of the conical part 2' is rotationally symmetric, as a sponge baking tin with a cone in the middle.
- the conical part 2' is tubular and partly turned inside out.
- the water trap further comprises a tray 24 arranged below the conical part 2' and having a side wall 25.
- the conical part 2' comprises an outer wall part 26 that is bent such that water can be trapped between the side wall 25 of the tray 24 and the outer wall part 26.
- the nozzles are similar as in the previous examples, and positioned in the top of the conical part.
- the cone is bent in the shape of an U.
- the wider part of the cone is turned inside out.
- a sewer 5" surrounds the water trap 2' and receives water from the water trap, as shown in figure 7.
- the present invention is not limited to the embodiments disclosed but may be varied and modified within the scope of the following claims.
- the number of nozzles can vary from one nozzle to more than two nozzles.
- the flushing system can be designed in other ways. Other types of nozzles can be used. It is also possible to combine the invention with a small tank to thereby further increase the flow in the water trap.
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)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1351084A SE1351084A1 (en) | 2013-09-19 | 2013-09-19 | A flushing toilet |
PCT/EP2014/069739 WO2015040035A1 (en) | 2013-09-19 | 2014-09-16 | A toilet including a water trap having a conical part |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3047076A1 true EP3047076A1 (en) | 2016-07-27 |
EP3047076B1 EP3047076B1 (en) | 2020-10-28 |
Family
ID=51582381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14771265.7A Active EP3047076B1 (en) | 2013-09-19 | 2014-09-16 | A toilet including a water trap having a conical part |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150354193A1 (en) |
EP (1) | EP3047076B1 (en) |
CN (1) | CN105164349B (en) |
SE (1) | SE1351084A1 (en) |
WO (1) | WO2015040035A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3408461A4 (en) * | 2016-01-25 | 2019-09-11 | Kohler Co. | Line pressure-driven, tankless, siphonic toilet |
CN107343839A (en) * | 2016-05-06 | 2017-11-14 | 新海科技集团有限公司 | A kind of vortex water flow purging system suitable for stool and urine nursing device |
CN107988771B (en) * | 2016-10-26 | 2021-08-31 | 博西华电器(江苏)有限公司 | Clothes drying device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US510997A (en) * | 1893-12-19 | Water-closet | ||
GB685960A (en) * | 1949-10-14 | 1953-01-14 | Ideal Boilers & Radiators Ltd | Toilet fixture |
US3224013A (en) * | 1964-03-18 | 1965-12-21 | Elton H Tubbs | Siphonic flush commode |
JP3052180B2 (en) * | 1994-10-19 | 2000-06-12 | 株式会社イナックス | Toilet bowl structure in toilet bowl |
CN1548669A (en) * | 2003-05-08 | 2004-11-24 | 李中洪 | Water-saving toilet with funnel inclined pipe |
JP5292681B2 (en) * | 2006-08-10 | 2013-09-18 | Toto株式会社 | Flush toilet |
US8082605B2 (en) * | 2006-09-08 | 2011-12-27 | Dan Marius Andreiu | Low flow hygienic apparatus and methods |
CN100557152C (en) * | 2007-01-23 | 2009-11-04 | 何广晖 | Integrated mechanical and full-automatic water-saving squatting pan |
US9003575B2 (en) * | 2008-02-12 | 2015-04-14 | Kohler Co. | Toilets with improved trapways |
US20100125940A1 (en) * | 2008-11-26 | 2010-05-27 | Dometic Corporation | Toilet for use in recreational vehicle and boats |
EP2233651B1 (en) * | 2009-03-27 | 2016-12-14 | Geberit International AG | Flush device for a water closet and method of operating such a device |
CN101962967B (en) * | 2009-07-24 | 2014-10-15 | 吉博力国际股份公司 | Flushing arrangement for a WC and method of operating such a flushing arrangement |
EP2309065B1 (en) * | 2009-10-06 | 2015-08-19 | Geberit International AG | Method for flushing a toilet bowl with a siphon and water closet |
EP2402519A1 (en) * | 2010-06-29 | 2012-01-04 | Geberit International AG | Flushing device for flushing a closet bowl, water closet with such a flushing device and closet bowl |
CN101899855A (en) * | 2010-07-30 | 2010-12-01 | 张超 | Combined drainage device |
JP5930509B2 (en) * | 2011-08-24 | 2016-06-08 | Toto株式会社 | Flush toilet |
-
2013
- 2013-09-19 SE SE1351084A patent/SE1351084A1/en unknown
-
2014
- 2014-09-16 CN CN201480022323.9A patent/CN105164349B/en not_active Expired - Fee Related
- 2014-09-16 WO PCT/EP2014/069739 patent/WO2015040035A1/en active Application Filing
- 2014-09-16 US US14/655,986 patent/US20150354193A1/en not_active Abandoned
- 2014-09-16 EP EP14771265.7A patent/EP3047076B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2015040035A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3047076B1 (en) | 2020-10-28 |
WO2015040035A1 (en) | 2015-03-26 |
CN105164349A (en) | 2015-12-16 |
SE536838C2 (en) | 2014-09-30 |
CN105164349B (en) | 2016-11-30 |
US20150354193A1 (en) | 2015-12-10 |
SE1351084A1 (en) | 2014-09-30 |
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