EP4126628A1 - Vacuum toilet, and container body for a vacuum toilet - Google Patents
Vacuum toilet, and container body for a vacuum toiletInfo
- Publication number
- EP4126628A1 EP4126628A1 EP21716100.9A EP21716100A EP4126628A1 EP 4126628 A1 EP4126628 A1 EP 4126628A1 EP 21716100 A EP21716100 A EP 21716100A EP 4126628 A1 EP4126628 A1 EP 4126628A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- transfer tank
- water container
- flushing water
- vacuum toilet
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 238000011010 flushing procedure Methods 0.000 claims abstract description 57
- 239000008237 rinsing water Substances 0.000 claims description 66
- 238000005192 partition Methods 0.000 claims description 17
- 239000002351 wastewater Substances 0.000 claims description 8
- 239000002033 PVDF binder Substances 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 229920002647 polyamide Polymers 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
-
- 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
- E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
- E03D5/024—Operated hydraulically or pneumatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D35/00—Sanitation
- B61D35/005—Toilet facilities
- B61D35/007—Toilet facilities comprising toilet waste receiving, treatment, storage, disposal or removal devices
-
- 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
- E03D1/24—Low-level flushing systems
- E03D1/28—Bowl integral with the flushing cistern
-
- 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
Definitions
- Vacuum toilet and container body for a vacuum toilet Vacuum toilet and container body for a vacuum toilet
- the present invention relates to a vacuum toilet and a container body for such a vacuum toilet.
- the vacuum toilet has a toilet bowl and a container body, for example a transfer tank with a first container interior, and a flushing water container with a second container interior.
- the flushing water container is designed and connected in such a way that flushing water can be conveyed out of this into the toilet with the aid of an overpressure that can be applied in the flushing water container.
- the transfer tank is designed and connected in such a way that suction mass can be sucked from the toilet bowl into the transfer tank with the aid of a negative pressure that can be applied in the transfer tank.
- Vacuum toilets are used, for example, as mobile toilets in vehicles (such as rail vehicles, airplanes, watercraft, buses, etc.) and offer the possibility of sucking off suction material from the toilet bowl using a vacuum and transferring it to a wastewater reservoir, e.g. a tank .
- a wastewater reservoir e.g. a tank .
- Such a vacuum toilet is known, for example, from EP 1 913 208 B1.
- the vacuum toilet comprises a seat, a bowl arranged underneath, a pipeline and ge controlled valves for the transport of suction material from the bowl into a transfer tank and from there into a sewer line.
- the vacuum toilet further includes a flushing water container from which flushing water can be conveyed into the bowl.
- the transfer tank, the rinsing water tank, the pipelines and valves are essentially housed in the space below the seat.
- the manufacture of the transfer tank and the flushing water container and their assembly on the vacuum toilet are complex and costly. It is therefore the object of the present invention to provide a vacuum toilet that is easy to manufacture and allows a simplified assembly of the transfer tank and of the rinsing water container.
- the transfer tank and the rinsing water container are formed by a container body which has a partition wall with a first side and a second side facing away from the first side.
- the first side delimits the first container interior of the transfer tank and the second side delimits the second container interior of the rinsing water container.
- the transfer tank and the rinsing water container are formed as a single component, for example using the injection or rotational molding process.
- the container body made of metal, in particular sheet metal can be manufactured, with individual metal or sheet metal pieces being connected to one another in a sealing manner by means of welding.
- suction mass is understood to mean the mass that is removed from the toilet bowl when it is flushed.
- the suction mass can contain flushing water as well as feces and other constituents.
- negative pressure is understood to mean a pressure which is less than the atmospheric pressure at sea level, in particular less than 1.013 bar.
- a negative pressure is 0.5 bar to 1.013 bar.
- overpressure is understood to mean a pressure which is greater than the atmospheric r pressure is at sea level, in particular greater than 1.013 bar.
- an overpressure is 2 bar to 6 bar.
- the partition preferably forms the flushing water container in the form of a hollow truncated cone, the flushing water container having a bottom with a first opening designed as a drain opening at a first end and a second opening at a second end opposite the first end.
- the drain opening is connected to the toilet bowl via several hoses, so that flushing water from the flushing water container can be conveyed into the toilet bowl via several inlets.
- the drain opening is preferably net angeord at the lowest point of the rinsing water tank in order to enable the rinsing water tank to be completely emptied.
- the flushing water container is preferably filled with an amount of flushing water that is sufficient for flushing the toilet bowl once. Alternatively, it is also possible to dimension the flushing water container in such a way that it can hold an amount of water that is sufficient for flushing the toilet bowl several times.
- the rinsing water container has a first inner diameter at its first end and a second inner diameter which is larger than the first inner diameter at its second end.
- the rinsing water tank expands starting from the first inner diameter in the direction of the second end to the second inner diameter.
- the second opening is circular and has an opening diameter that is equal to the second inner diameter of the rinse water tank.
- the second opening preferably extends over an entire end face of the hollow circular cylinder.
- the rinsing water tank has a draft angle along which the rinsing water tank widens. The draft angle is preferably inclined by approximately 1 ° to 3 ° to a longitudinal axis of the rinsing water container.
- the container body has an outer wall and the Spommewasserbebirl ter is connected at its second end to the outer wall such that the second opening of the rinsing water container is formed in the outer wall of the container body. This avoids undercuts in the flushing water tank. If the container body is manufactured, for example, by injection molding or rotary casting, this enables the container body to be easily removed from the mold.
- the second opening of the rinsing water container is also preferably closed with a lid, the lid having an inlet opening for filling the rinsing water container with rinsing water and a compressed air opening.
- a float switch also preferably protrudes through the cover, which senses the fill level in the rinsing water container and interrupts the supply of rinsing water through the inlet opening when a desired filling amount is reached.
- the transition between the lid and the rinsing water container is optionally sealed with a seal.
- the cover is designed as a fastening receptacle for fastening system components of the vacuum toilet.
- system components can be valves, connections, hose lines or other electronic components such as ejectors or pumps.
- the cover is preferably made of Me tall, so that secure attachment is made possible. Since the cover is designed as a fastening receptacle, the system components can be fastened quickly and easily. If, for example, the system components are a rinsing water connection, by means of which rinsing water is poured into the rinsing water tank, the length of hoses required to connect the rinsing water connection to the rinsing water tank is minimized. Becomes optional the flushing water connection is connected directly to the flushing water tank so that no connecting hoses are required.
- the drain opening of the rinsing water container is connected to a drain channel and the drain channel is connected to the outer wall of the container body in such a way that a channel drain opening of the drain channel is formed in the outer wall.
- the channel drain opening in the outer wall of the container body preferably enables individual hoses to be connected to the rinsing water container. This is preferably done via a manifold that connects the channel drain opening with the individual hoses.
- the use of a drainage channel enables the transfer tank to surround the flushing water container on one side, but the flushing water to drain from the flushing water container and can be conveyed beyond the outer wall of the container body in the direction of the toilet bowl.
- the outer wall of the container body form the transfer tank together with the partition and an outer wall of the drainage channel.
- the transfer tank and rinsing container are only separated from each other by the partition.
- a first part of the partition wall preferably forms the rinsing water container and a second part of the partition wall, together with the outer wall of the container body and the outer wall of the drainage channel, forms the transfer tank.
- the first and second parts preferably border one another in the longitudinal direction of the rinsing water container.
- the transfer tank is fluidically connected to the toilet bowl and can be fluidically connected to a waste water reservoir.
- a switchable valve is preferably provided between the toilet bowl and the transfer tank and between the wastewater reservoir and the transfer tank. So in the direction of the With the valve between the toilet bowl and the transfer tank closed and the valve open in the direction of the waste water reservoir, the suction material can then be conveyed into the waste water reservoir with the aid of an overpressure in the transfer tank.
- the container body can preferably be produced in a rotary or injection molding process. These processes enable the simple production of complex geometries.
- the container body is made of polyethylene (PE), polyamide (PA) or polyvinylidene fluoride (PVDF). It has been shown that these materia lien in contact with suction mass, in particular in contact with feces, are stable.
- PE polyethylene
- PA polyamide
- PVDF polyvinylidene fluoride
- the above-mentioned object is also achieved by a container body with the features of claim 12 protection.
- the container body for a vacuum toilet comprises a transfer tank with a first container interior and a flush water container with a second container interior.
- the flushing water container is designed and connected in such a way that flushing water can be conveyed from this into a toilet bowl of the vacuum toilet with the aid of an overpressure that can be applied in the flushing water container.
- the transfer tank is designed and connected in such a way that suction mass can be sucked from the toilet bowl into the transfer tank with the aid of a negative pressure that can be applied in the transfer tank.
- the transfer tank and the rinsing water container are formed by the container body, wherein the loading container body has a partition with a first side and a second side facing away from the first side.
- the first side delimits the first container interior of the Trans fertank and the second side delimits the second container interior of the rinsing water container.
- the container body can for example sold individually as a spare part or produced as a contract for a manufacturer of vacuum toilets.
- Figure 1 is a perspective view of a vacuum toilet with a container body
- Figure 2 is a sectional view of the vacuum toilet with the container body according to Figure 1 and
- Figure 3 is a perspective view of the container body.
- the vacuum toilet 1 comprises a toilet bowl 2 and a container body 3 with an outer wall 4.
- the container body 3 is made of polyethylene (PE) in a rotary or injection molding process.
- PE polyethylene
- other materials can also be used for the production of the Benzol ter stresses 3 in the rotation or injection molding process, such as polyamide (PA) or polyvinylidene fluoride (PVDF), for example.
- PA polyamide
- PVDF polyvinylidene fluoride
- the container body can also be made from metal sheets that are connected to one another in a sealing manner by means of welding.
- the container body 3 forms a transfer tank 5 with a first container interior 6 and a rinsing water container 7 with a second container interior 8.
- the container body 3 has a partition 9 with a first side 10 and a second side 11 facing away from the first side.
- the first side 10 delimits the first container interior 6 of the transfer tank 5 and the second side 11 delimits the second container interior 8 of the rinsing water container 7.
- the flushing water container 7 is designed and connected in such a way that flushing water can be conveyed from this into the toilet bowl 2 with the aid of an overpressure that can be applied in the flushing water container 7.
- the rinsing water tank 7 has the shape of a hollow truncated cone and is shaped by the partition 9 of the container body 3. At a first end 12, the rinsing water container 7 has a bottom 13 with a first opening designed as a drain opening 14. The drain opening 14 is arranged at the lowest point of the rinsing water container 7.
- the rinsing water container 7 has at a second end 15 opposite the first end 12 a second circular opening 16 with an opening diameter (D öff) .
- the rinsing water container 7 has a first inside diameter Di at its first end 12 and a second inside diameter D2 which is larger than the first inside diameter Di at its second end 15.
- the rinsing water container 7 has a draft bevel 28, along which it widens starting from the first inner diameter Di in the direction of the second end 15 to the second inner diameter D2.
- the opening diameter (D öff) of the circular opening 16 corresponds to the second inside diameter D2 at the second end 15 of the rinsing water container 7.
- the rinsing water container 7 is connected at its second end 15 to the outer wall 4 of the container body 3 in such a way that the second opening 16 of the rinsing water container 7 is formed in the outer wall 4 of the container body 3.
- the rinse water container 7 is thus completely open at its upper end.
- the second opening 16 of the rinsing water container 7 is closed with a cover 17.
- the cover 17 has an inlet opening (not shown) for filling the rinsing water container with rinsing water and a compressed air opening (not shown).
- a float switch 18 protrudes through the cover 17 into the rinsing water container 7. Between the lid 17 and the container body 3, a seal 19 is arranged, the sealing tet the connection between the lid 17 and the container body 3.
- the vacuum toilet 1 further comprises several system components, such as water and compressed air connections 20, a control unit 21 and an ejector 22.
- the control unit 21 is designed to control the ejector 22.
- the ejector 22 is suitable for generating positive pressures and negative pressures both in the rinsing water tank 7 and in the transfer tank 5.
- the overpressures in the transfer tank 5 can be approx. 2 bar. In the rinsing water tank 7 overpressures of about 5 bar can rule.
- the negative pressures in the transfer tank 5 are approximately 0.5 bar to 0.8 bar.
- the cover 17 is designed as a fastening receptacle for fastening the water and compressed air connections 20.
- the drain opening 14 of the rinsing water container 7 is connected to a drain channel 23.
- the drainage channel 23 has a channel drainage opening 24 which is formed in the outer wall 4 of the container body 3.
- the transfer tank 5 of the vacuum toilet 1 has a first connection 25, via which the transfer tank 5 can be fluidically connected to the toilet basin 2.
- the transfer tank 5 also has a second connection 26, with which the transfer tank 5 can be fluidly connected to a wastewater reservoir (not shown).
- the transfer tank 5 is formed from the outer wall of the container body 3 together with the partition wall 9 of the container body 3 and an outer wall 27 of the drain channel 23. The function of the vacuum toilet 1 is explained below with reference to FIGS. 1 to 3.
- the flushing water container 7 is filled with flushing water from a flushing water reservoir (not shown) via a water connection 20.
- the filling he follows until the float switch 18 in the lid 17 of the rinse water container 7 signals a predefined amount of rinse water in the rinse water tank 7 located Liche amount.
- the predefined amount of flushing water is preferably sufficient for flushing the toilet bowl 2 once.
- the toilet bowl 2 is to be rinsed after using the vacuum toilet 1, this is communicated to the control unit 21 by the user of the vacuum toilet 1 by pressing a switch (not shown).
- the control unit 21 controls the ejector 22 in such a way that it generates an overpressure of approx. 5 bar in the rinsing water tank 7 and thereby the rinsing water in the rinsing water tank 7 via the outlet opening 14 of the rinsing water tank 7, the drainage channel 23 and associated hoses (not shown) in the toilet bowl 2 promotes.
- the control unit 21 then closes a first valve between the toilet bowl 2 and the first connection 25 of the transfer tank 5 and a second valve between the second connection 26 of the transfer tank 5 and a wastewater reservoir (not shown).
- control unit 21 controls the ejector 22 in such a way that it generates a negative pressure of approximately 0.5 bar to 0.8 bar in the transfer tank 5. After opening the first valve is sucked into the transfer tank 5 by the negative pressure in the transfer tank 5 in the toilet bowl 2 suction.
- the first valve is then closed again by means of the control unit 21 and an overpressure of approx. 2 bar is generated in the intermediate container in the transfer tank 5 via the ejector 22. After opening the second valve, the suction mass in the transfer tank 5 flows into a water reservoir connected to the transfer tank 5.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Sanitary Device For Flush Toilet (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020101760.8U DE202020101760U1 (en) | 2020-04-01 | 2020-04-01 | Vacuum toilet and container body for a vacuum toilet |
PCT/EP2021/057698 WO2021198000A1 (en) | 2020-04-01 | 2021-03-25 | Vacuum toilet, and container body for a vacuum toilet |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4126628A1 true EP4126628A1 (en) | 2023-02-08 |
Family
ID=70546216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21716100.9A Pending EP4126628A1 (en) | 2020-04-01 | 2021-03-25 | Vacuum toilet, and container body for a vacuum toilet |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230144334A1 (en) |
EP (1) | EP4126628A1 (en) |
JP (1) | JP2023521066A (en) |
DE (1) | DE202020101760U1 (en) |
WO (1) | WO2021198000A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202020106612U1 (en) | 2020-11-18 | 2020-12-03 | Trainvac GmbH | Vacuum toilet |
DE202021103625U1 (en) | 2021-07-06 | 2021-07-29 | Trainvac GmbH | Vacuum toilet |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5621924A (en) * | 1995-06-07 | 1997-04-22 | Sealand Ttechnology, Inc. | Vacuum tank construction for a vacuum toilet assembly |
DE202005012657U1 (en) * | 2005-08-11 | 2006-12-21 | Evac Gmbh | Intermediate container for vacuum toilet |
WO2014014868A1 (en) * | 2012-07-16 | 2014-01-23 | Mag Aerospace Industries, Inc. | Aircraft lavatory urinal |
DE202014005775U1 (en) * | 2014-07-17 | 2015-10-20 | Evac Gmbh | Electropneumatic pilot control unit |
CN105644463B (en) * | 2015-12-29 | 2021-10-29 | 宜为客有限公司 | Vacuum toilet system for vehicle |
FR3049622B1 (en) * | 2016-03-30 | 2020-06-12 | Abdelhamid Rabhi | SELF-CONTAINED MOBILE URINAL |
CN106184054A (en) * | 2016-08-02 | 2016-12-07 | 长春市玺泽商贸有限公司 | A kind of multi-stage vacuum sucking type feces collecting system and defecate collection method thereof |
DE102018209743A1 (en) * | 2018-06-18 | 2019-12-19 | Siemens Aktiengesellschaft | Water supply system for a rail vehicle |
-
2020
- 2020-04-01 DE DE202020101760.8U patent/DE202020101760U1/en active Active
-
2021
- 2021-03-25 WO PCT/EP2021/057698 patent/WO2021198000A1/en unknown
- 2021-03-25 EP EP21716100.9A patent/EP4126628A1/en active Pending
- 2021-03-25 US US17/916,286 patent/US20230144334A1/en not_active Abandoned
- 2021-03-25 JP JP2022560490A patent/JP2023521066A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021198000A1 (en) | 2021-10-07 |
DE202020101760U1 (en) | 2020-04-21 |
JP2023521066A (en) | 2023-05-23 |
US20230144334A1 (en) | 2023-05-11 |
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