CN111155613A - Oil seal toilet stool with oil-saving function - Google Patents
Oil seal toilet stool with oil-saving function Download PDFInfo
- Publication number
- CN111155613A CN111155613A CN202010068943.3A CN202010068943A CN111155613A CN 111155613 A CN111155613 A CN 111155613A CN 202010068943 A CN202010068943 A CN 202010068943A CN 111155613 A CN111155613 A CN 111155613A
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- Prior art keywords
- oil
- piston
- toilet stool
- collecting area
- water
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- 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
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- 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
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
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- 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
- E03D5/10—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl
- E03D5/105—Special constructions of flushing devices, e.g. closed flushing system operated electrically, e.g. by a photo-cell; also combined with devices for opening or closing shutters in the bowl outlet and/or with devices for raising/or lowering seat and cover and/or for swiveling the bowl touchless, e.g. using sensors
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- 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)
- Non-Flushing Toilets (AREA)
Abstract
The invention discloses an oil-sealed toilet stool with an oil-saving function, which comprises a toilet stool body, wherein a sunken excrement collecting area is arranged on the toilet stool body, a sewage discharge pipeline is connected to the lowest position in the excrement collecting area, the sewage discharge pipeline is U-shaped, a normally open valve is arranged on the sewage discharge pipeline, the toilet stool body is connected with a flushing device for flushing excrement in the excrement collecting area, water flushed by the flushing device forms a water sealing area in the excrement collecting area, the toilet stool body is connected with an oil sealing device, the oil sealing device comprises an elastic bag, a connecting pipe, a piston cylinder, a piston body, a sensor, a controller and a driving device, the elastic bag is arranged in the excrement collecting area and is positioned below the water sealing liquid level in the excrement collecting area, and the elastic belt is bonded to the bottom of the excrement collecting area through waterproof glue. The toilet bowl can reduce the waste of oil seals in actual use, and is more economical.
Description
Technical Field
The invention relates to the technical field of toilets, in particular to an oil seal toilet with an oil saving function.
Background
The squatting pan is characterized in that a human body takes a squatting type when in use, and is divided into a non-sheltering type and a sheltering type; the squatting pan has a water return bend and a water return-free bend. The working principle of the trap is that a horizontal S-shaped elbow is utilized to form a water seal to prevent the odor of a sewer from flowing backwards; the toilet bowl on the market is divided into four types, namely a flushing type toilet bowl, a siphon jet type toilet bowl and a siphon vortex type toilet bowl according to a pollution discharge mode.
In practical use, the odor is prevented from being emitted by generally adopting a water seal mode, and the purpose of water seal is realized mainly through a U-shaped structure; in addition, the toilet is blocked by adopting an oil seal mode, the oil seal blocks by adopting oil, and the oil forms a layered structure on the water seal to reduce the overflow of odor.
However, in practical use, the sealing is performed by adopting a mode of adding water seal by the oil seal, and when dirt is washed, the water seal and the oil seal are washed away simultaneously, so that the oil seal needs to be supplemented once every time the dirt is washed, and the waste of the oil seal is caused.
Disclosure of Invention
The invention aims to provide an oil seal toilet stool with an oil saving function, which can reduce the waste of oil seal and is more economical in actual use.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an oil-sealed toilet stool with an oil saving function comprises a toilet stool body, wherein a sunken excrement collecting area is arranged on the toilet stool body, a sewage discharge pipeline is connected to the lowest position in the excrement collecting area and is U-shaped, a normally open valve is arranged on the sewage discharge pipeline, the toilet stool body is connected with a flushing device for flushing excrement in the excrement collecting area, water flushed by the flushing device forms a water sealing area in the excrement collecting area, the toilet stool body is connected with an oil sealing device, the oil sealing device comprises an elastic bag, a connecting pipe, a piston cylinder, a piston body, a sensor, a controller and a driving device, the elastic bag is arranged in the excrement collecting area and is positioned below the water sealing liquid level in the excrement collecting area, an elastic belt is bonded to the bottom of the excrement collecting area through waterproof glue, the piston body comprises a piston rod and a piston head connected to the lower end of the piston rod, and the upper end of, the driving device can drive the piston rod to move upwards or downwards, the piston head is arranged in the piston body and can move up and down, an oil seal temporary storage area is formed between the piston rod and the piston cylinder above the piston head, an area formed by the lower part of the piston head and the lower end of the piston cylinder is communicated with the elastic bag through the connecting pipe, the elastic bag, the connecting pipe and the lower end of the piston cylinder are filled with media, the side wall of the excrement collecting area is provided with an overflow outlet, the overflow pipe is communicated with the temporary oil seal storage area at the upper end of the piston cylinder through an obliquely arranged pipeline, a first valve is arranged on the pipeline, the sensor is located in the temporary storage area of the oil seal and fixed on the piston rod, the driving device, the sensor, the flushing device, the normally-open valve and the first valve are connected with the controller, and the piston head cannot exceed a connecting point of the pipeline and the piston cylinder when moving upwards.
Wherein, the inclination angle of the pipeline is 170-175 degrees.
Wherein, the driving device is a pneumatic or hydraulic driving device.
Further optimize, piston cylinder upper end is through first valve connection all oil tanks.
Wherein, washing unit includes water tank, water pipe, water pump and sets up the annular pipe in the excrement and urine collecting area, be equipped with a plurality of apopores on the annular pipe, the annular pipe pass through the pipeline with the water tank is connected, the water pump is connected on the water pipe, the water pump with the controller is connected.
Wherein, be equipped with detection sensor on the stool pot body, detection sensor with the controller is connected, detection sensor is used for detecting whether someone is like the lavatory.
Wherein, the driving device is a gear rack driving device.
Wherein, the detection range of the detection sensor is 10-50 cm.
Further optimizing, the detection range of the detection sensor is 30 cm.
Wherein the medium is gas or liquid.
Compared with the prior art, the invention has the following beneficial effects:
the invention can achieve the purpose of saving oil through the arranged oil seal device, can not only seal the excrement collecting area of the toilet body through the oil seal in actual use, but also can not flush the oil seal in the toilet body when flushing dirt, can recycle the oil seal in the toilet body, can effectively reduce the waste of the oil seal, and is more energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the state of the oil seal entering the temporary storage area of the oil seal.
Reference numerals: the toilet comprises a toilet body 1, a feces collecting area 2, a sewage discharge pipeline 3, a normally open valve 4, a water seal 5, a water tank 6, a water pipe 7, a water pump 8, a ring pipe 9, an oil seal 10, an elastic bag 11, a connecting pipe 12, a piston cylinder 13, a piston body 14, a piston rod 15, a piston head 16, a sensor 17, a controller 18, a driving device 19, an overflow outlet 20, an oil seal temporary storage area 21, a first valve 22 and a pipeline 23.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
An oil-sealed toilet stool with an oil-saving function comprises a toilet stool body 1, wherein a sunken excrement collecting area 2 is arranged on the toilet stool body 1, a sewage discharge pipeline 3 is connected to the lowest position in the excrement collecting area 2, the sewage discharge pipeline 3 is U-shaped, a normally-open valve 4 is arranged on the sewage discharge pipeline 3, the toilet stool body 1 is connected with a flushing device for flushing excrement in the excrement collecting area 2, water flushed by the flushing device forms a water sealing area in the excrement collecting area 2, the toilet stool body 1 is connected with an oil sealing device, the oil sealing device comprises an elastic bag 11, a connecting pipe 12, a piston cylinder 13, a piston body 14, a sensor 17, a controller 18 and a driving device 19, the elastic bag 11 is arranged in the excrement collecting area 2 and is positioned below the liquid level of a water sealing 5 in the excrement collecting area 2, the elastic belt is bonded to the bottom of the excrement collecting area 2 through waterproof glue, the piston body 14 comprises a piston rod 15 and a piston head, the upper end of the piston rod 15 is connected with the driving device 19, the driving device 19 can drive the piston rod 15 to move upwards or downwards, the piston head 16 is arranged in the piston body 14 and can move up and down, an oil seal temporary storage area 21 is formed between the piston rod 15 and the piston cylinder 13 above the piston head 16, an area formed between the lower end of the piston head 16 and the lower end of the piston cylinder 13 is communicated with the elastic bag 11 through the connecting pipe 12, media are filled in the elastic bag 11, the connecting pipe 12 and the lower end of the piston cylinder 13, an overflow outlet 20 is arranged on the side wall of the excrement collecting area 2, the overflow outlet is communicated with the oil seal temporary storage area 21 at the upper end of the piston cylinder 13 through an obliquely arranged pipeline 23, a first valve 22 is arranged on the pipeline 23, the sensor 17 is positioned in the oil seal temporary storage area 21 and fixed on the piston rod 15, the normally open valve 4 and the first valve 22 are connected to the controller 18, and the piston head 16 moves upward without exceeding the connection point of the pipe 23 and the piston cylinder 13.
Wherein the inclination angle of the conduit 23 is 170-175 degrees, in the embodiment, the inclination angle of the conduit 23 is 173 degrees, so that the oil seal 10 can flow into the piston cylinder 13 more smoothly in actual use.
The driving device 19 is a pneumatic driving device, a rack and pinion driving device, or a hydraulic driving device, and it is only required to drive the piston body 14 to move up and down, and the description is omitted here.
In practical use, the driving device 19 is required to drive the piston body 14 to move up and down, so that media filled in the lower ends of the elastic bag 11, the connecting pipe 12 and the piston cylinder 13 can flow, when the normally open valve 4 is closed, the driving device 19 drives the piston body 14 to descend, so that the media enter the elastic bag 11, the volume of the elastic bag 11 is once large, so that the liquid levels of the water seal 5 and the oil seal 10 in the excrement collecting area 2 in the toilet body 1 rise, so that the oil seal 10 overflows from the overflow port 20 and flows through the pipeline 23 and then enters the oil seal temporary storage area 21 for temporary storage, when the liquid level of the oil seal 10 in the oil seal temporary storage area 21 reaches the detection position of the sensor 17, it can be determined that the oil seal 10 completely enters the oil seal temporary storage area 21, after the oil seal 10 completely enters the oil seal temporary storage area 21, the controller 18 controls the first valve 22 to close, and then, the volume of the elastic bag 11 is reset, at the moment, under the action of the controller 18, the normally open valve 4 is started to reset, the flushing device flushes, dirt in the excrement collecting area 2 is flushed, and meanwhile, a new water seal 5 is formed in the excrement collecting area 2; after the flushing is finished, at the moment, the controller 18 controls the first valve 22 to be opened, and the oil seal 10 in the oil seal temporary storage area 21 flows back to the excrement collecting area 2; since the pipe 23 is inclined, in actual use, the oil seal 10 remains in the pipe 23, and therefore, all the oil reservoirs are connected to the upper end of the piston cylinder 13 through the first valve 22; thus, the oil seal 10 can be replenished to the oil seal temporary storage area 21, and simultaneously, since a small part of the oil seal 10 can be flushed away by the flushing device, the oil storage tank is also replenished with the amount of the oil seal 10.
In this embodiment, the flushing device includes a water tank 6, a water pipe 7, a water pump 8 and an annular pipe 9 disposed in the excrement collecting area 2, a plurality of water outlet holes are disposed on the annular pipe 9, the annular pipe 9 is connected to the water tank 6 through a pipeline 23, the water pump 8 is connected to the water pipe 7, and the water pump 8 is connected to the controller 18; during flushing, the controller 18 controls the water pump 8 to be started, water in the water tank 6 enters the middle annular pipe 9 under the action of the water pump 8, and then is discharged from the water outlet to flush dirt; the water pump 8 can not only provide energy for water, but also pressurize the water, thereby ensuring the flushing effect and reducing the residue of dirt.
In another embodiment, the toilet body 1 is provided with a detection sensor, the detection sensor is connected with the controller 18, and the detection sensor is used for detecting whether a person is in the toilet; thus, in actual use, the controller 18 can realize the control of the washing process according to the detection result of the detection sensor, when a person approaches, the controller 18 enters the awakening state, and after the user leaves, all the parts can be controlled to work in sequence.
The process is as follows:
the detection sensor detects that someone is toilet, the signal is transmitted to the controller 18, and the controller 18 enters a standby state;
when the toilet is finished, the user leaves, the detection sensor transmits a signal to the controller 18 again, at the moment, the sensor 17 enters a standby state, the controller 18 controls the normally open valve 4 to be in a closed state after acting, the driving device 19 is started to drive the piston body 14 to move downwards, so that a medium enters the elastic bag 11, the liquid level in the excrement collecting area 2 rises, the oil seal 10 enters the temporary oil seal storage area 21, when the sensor 17 in the temporary oil seal storage area 21 detects the oil seal 10, the controller 18 controls the first valve 22 to be closed, the driving device 19 drives the piston body 14 to rise, and the water level in the excrement collecting area 2 falls; at this moment, controller 18 control normally open valve 4 resets, and simultaneously, washing unit washes the filth in the excrement and urine collection region 2, after washing, in the use of reality, can adopt the mode of time delay, promptly: stopping the flushing device after flushing for 4 s; the controller 18 then controls the first valve 22 to open for oil from the oil seal 10 to flow back into the sump area 2.
The detection range of the detection sensor is 10-50cm, in the embodiment, the detection range of the detection sensor is 30cm, and the detection range of the detection sensor is ensured.
Wherein the medium is gas or liquid, such as aqueous solution, air, nitrogen, etc.
It should be noted that, in practical use, excrement or urine enters the excrement collecting area 2, and the liquid level does not rise due to the U-shaped sewage discharge pipe 3.
In actual use, the upper end of the piston body 14 can be either open or closed, and a vent hole is required to be left when the piston body is closed.
Therefore, in practical use, compared with the situation that a thin layer of oil seal is arranged each time, the oil seal is flushed together with the oil seal during flushing, the oil seal in the excrement collecting area 2 can be thicker, the plugging effect is better, the odor overflow prevention effect is better, and the waste of the oil seal cannot be caused during flushing.
Wherein, the toilet body is a squatting pan body or a toilet bowl body, namely a squatting pan or a sitting pan.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an oil blanket stool pot with fuel-economizing function, includes the stool pot body, is equipped with on the stool pot body and is sunken form collection just region, and the lowest position department is connected with the sewage pipes in the collection just region, the sewage pipes is the U type form, be equipped with open valve in usual on the sewage pipes, the stool pot body is connected with and is used for washing the regional faecal washing unit of collection just, and the water that washing unit washed forms water seal region, its characterized in that in collection just region: the toilet bowl body is connected with an oil sealing device, the oil sealing device comprises an elastic bag, a connecting pipe, a piston cylinder, a piston body, a sensor, a controller and a driving device, the elastic bag is arranged in the excrement collecting area and is positioned below the water seal liquid level in the excrement collecting area, an elastic belt is bonded at the bottom of the excrement collecting area through waterproof glue, the piston body comprises a piston rod and a piston head connected to the lower end of the piston rod, the upper end of the piston rod is connected with the driving device, the driving device can drive the piston rod to move upwards or downwards, the piston head is arranged in the piston body and can move upwards and downwards, an oil seal temporary storage area is formed between the piston rod and the piston cylinder above the piston head, the area formed by the lower end of the piston head and the lower end of the piston cylinder is communicated with the elastic bag through, the lateral wall of the excrement collecting area is provided with an overflow outlet, the overflow pipe is communicated with an oil seal temporary storage area at the upper end of the piston cylinder through a pipeline which is obliquely arranged, a first valve is arranged on the pipeline, the sensor is positioned in the oil seal temporary storage area and fixed on the piston rod, the driving device, the sensor, the flushing device, the normally open valve and the first valve are connected with the controller, and the piston head cannot exceed a connecting point of the pipeline and the piston cylinder when moving upwards.
2. The oil-sealed toilet stool with the oil saving function as claimed in claim 1, wherein the inclination angle of the pipeline is 170 degrees and 175 degrees.
3. The oil-sealed toilet stool with the oil saving function according to claim 1, wherein the driving device is a pneumatic or hydraulic driving device.
4. The oil-sealed toilet stool with the oil saving function according to claim 1, wherein the upper end of the piston cylinder is connected with all oil storage tanks through a first valve.
5. The oil-sealed toilet stool with the oil saving function according to claim 1, characterized in that the flushing device comprises a water tank, a water pipe, a water pump and an annular pipe arranged in a stool collecting area, wherein a plurality of water outlet holes are formed in the annular pipe, the annular pipe is connected with the water tank through a pipeline, the water pump is connected to the water pipe, and the water pump is connected with the controller.
6. The oil-sealed toilet stool with the oil saving function according to claim 1, wherein a detection sensor is arranged on the toilet stool body and connected with the controller, and the detection sensor is used for detecting whether a person goes to the toilet or not.
7. The oil-sealed toilet stool with the oil saving function according to claim 1, characterized in that the driving device is a gear and rack driving device.
8. The oil-sealed toilet stool with the oil saving function according to claim 6, wherein the detection range of the detection sensor is 10-50 cm.
9. The oil-sealed toilet stool with the oil saving function according to claim 8, wherein the detection range of the detection sensor is 30 cm.
10. The oil-sealed toilet stool with the oil saving function according to claim 1, wherein the medium is gas or liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068943.3A CN111155613B (en) | 2020-01-21 | 2020-01-21 | Oil seal toilet stool with oil-saving function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068943.3A CN111155613B (en) | 2020-01-21 | 2020-01-21 | Oil seal toilet stool with oil-saving function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111155613A true CN111155613A (en) | 2020-05-15 |
| CN111155613B CN111155613B (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010068943.3A Active CN111155613B (en) | 2020-01-21 | 2020-01-21 | Oil seal toilet stool with oil-saving function |
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| Country | Link |
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| CN (1) | CN111155613B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230340769A1 (en) * | 2020-07-21 | 2023-10-26 | Dale C. Carson | Odor elimination system and method for a toilet |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244061A (en) * | 1978-05-12 | 1981-01-13 | National Research Development Corporation | Urinals |
| CN1200160A (en) * | 1995-10-25 | 1998-11-25 | 迪特马尔·L·戈杰斯 | Horizontal-flow oil-sealant preserving drain odor trap |
| US6425411B1 (en) * | 1995-10-25 | 2002-07-30 | Ditmar L. Gorges | Oil sealant-preserving drain odor trap |
| US6487731B1 (en) * | 2001-10-01 | 2002-12-03 | James Houde | Self-cleaning, waste storing, odorless, environmentally friendly toilet for humans and animals |
| JP2005118519A (en) * | 2003-10-17 | 2005-05-12 | Kasagi Ryoji | Gas sealant made by mixing solid lighter than liquid into liquid floating in buoyancy water |
| WO2007065218A1 (en) * | 2005-12-08 | 2007-06-14 | Kenneth Fredrick Noel Anderson | A urinal |
| CN105507403A (en) * | 2015-12-25 | 2016-04-20 | 杜庆存 | Full-automatic oil sealing type toilet bowl |
| EP3003407B1 (en) * | 2013-06-03 | 2017-03-22 | Uridan Waterless Solutions GmbH | Sealing liquid |
-
2020
- 2020-01-21 CN CN202010068943.3A patent/CN111155613B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4244061A (en) * | 1978-05-12 | 1981-01-13 | National Research Development Corporation | Urinals |
| CN1200160A (en) * | 1995-10-25 | 1998-11-25 | 迪特马尔·L·戈杰斯 | Horizontal-flow oil-sealant preserving drain odor trap |
| US6425411B1 (en) * | 1995-10-25 | 2002-07-30 | Ditmar L. Gorges | Oil sealant-preserving drain odor trap |
| US6487731B1 (en) * | 2001-10-01 | 2002-12-03 | James Houde | Self-cleaning, waste storing, odorless, environmentally friendly toilet for humans and animals |
| JP2005118519A (en) * | 2003-10-17 | 2005-05-12 | Kasagi Ryoji | Gas sealant made by mixing solid lighter than liquid into liquid floating in buoyancy water |
| WO2007065218A1 (en) * | 2005-12-08 | 2007-06-14 | Kenneth Fredrick Noel Anderson | A urinal |
| EP3003407B1 (en) * | 2013-06-03 | 2017-03-22 | Uridan Waterless Solutions GmbH | Sealing liquid |
| CN105507403A (en) * | 2015-12-25 | 2016-04-20 | 杜庆存 | Full-automatic oil sealing type toilet bowl |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230340769A1 (en) * | 2020-07-21 | 2023-10-26 | Dale C. Carson | Odor elimination system and method for a toilet |
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| Publication number | Publication date |
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| CN111155613B (en) | 2020-12-11 |
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