CN103241253A - Environment-friendly wind energy toilet - Google Patents
Environment-friendly wind energy toilet Download PDFInfo
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- CN103241253A CN103241253A CN2013102089087A CN201310208908A CN103241253A CN 103241253 A CN103241253 A CN 103241253A CN 2013102089087 A CN2013102089087 A CN 2013102089087A CN 201310208908 A CN201310208908 A CN 201310208908A CN 103241253 A CN103241253 A CN 103241253A
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Abstract
The invention discloses an environment-friendly wind energy toilet which comprises a toilet body, an end cover, a wind collection impeller and an air storage tank, wherein the wind collection impeller and the air storage tank are used for collecting wind energy; the wing collection impeller is arranged on a wind collection impeller shaft, and connected with an air inlet impeller positioned in an air inlet duct of the air storage tank by a first transmission mechanism; an air inlet one-way valve is arranged in the air inlet duct of the air storage tank; an opening at the upper end of the toilet body is provided with a cycle of inward raised bulge; a cycle of communicated airflow channel is arranged in the bulge; a cycle of air holes are formed in the bulge downwards; air exhausting directions of the air holes incline in the same direction to allow that an airflow can form a downward cyclone along an inner wall of the toilet body after air is exhausted from the air holes; and the air storage tank is communicated with the airflow channel in the bulge by an air exhaust duct. The environment-friendly wind energy toilet can collect and use a wind resource for cleaning without water, and has the advantages of energy saving and environmental protection.
Description
Technical field
The present invention relates to a kind of toilet, especially a kind of wind energy environmental protection toilet of using at vehicle such as train or steamers of being particularly suitable for.
Background technology
On the vehicle such as train or steamer, the dirts such as ight soil that discharge its water closet normally directly efflux, and can cause pollution on the way.In the vehicle such as train, need carry cleaning water with car and be used for lavatory flushing simultaneously, so just increase the weight of vehicle load, reduce the vehicle load ability.In addition, when the vehicle travelled, Jun Hui economized and to consume a large amount of energy as power, and the vehicle travel in the way, usually can run into a large amount of wind resources, and these wind resources not only do not obtain utilizing and waste, and tend to travelling of the instrument of blocking the traffic.
Summary of the invention
At the deficiencies in the prior art, technical matters to be solved by this invention is, how to provide a kind of can the collection to utilize wind resource, need not water, the wind energy environmental protection toilet of energy-conserving and environment-protective, and it is particularly suitable for using at vehicle such as train or steamers.
In order to solve the problems of the technologies described above, adopted following technical scheme among the present invention:
A kind of wind energy environmental protection toilet, comprise the toilet body of being with inner chamber, the hinged end cap that is provided with in toilet body toilet mouth place, upper end, it is characterized in that, also comprise for the collection wind impeller of collecting wind energy, storage tank, described collection wind impeller is arranged on the collection fan blade wheel shaft, collection fan blade wheel shaft links to each other with the air inlet impeller that is positioned at the storage tank induction tract by first transmission device and can drive air inlet impeller rotation air inlet, between air inlet impeller and storage tank, also be provided with breather check valve in the storage tank induction tract, described toilet body upper end open place has the inwardly protruded jut of a circle, this jut inside has the gas channel that a circle is communicated with, evenly be periphery on this jut and be provided with the pore that a circle is close to the setting of toilet inner body wall downwards, pore be communicated with gas channel and the pore outgassing direction for toward same direction be obliquely installed make pore give vent to anger the back air-flow can form downward cyclone along the toilet inner body wall, described storage tank is communicated with gas channel in the jut by vent pipe, and described vent pipe is provided with the air flow rate solenoid electric valve.
When the present invention uses, be particularly suitable for installing and using at vehicle such as train or steamers, when the back use is installed, the collection wind impeller is used for collecting wind energy, distinguished and admirable blow collection wind impeller rotation after, drive collects the rotation of fan blade wheel shaft, and then rotates by first transmission device drive air inlet impeller, for storage tank is inflated standby.After the user goes to toilet, pass through electric-controlled switch, the air flow rate solenoid electric valve of controlling out on the gas tank vent pipe is opened, the air-flow of storage tank is gone out in the gas channel on the toilet body of going forward side by side and by pore from vent pipe and is gone out the toilet chamber body, air-flow can form downward cyclone along the toilet inner body wall after pore was given vent to anger, and produced powerful siphon action, and the dirt that sticks to the toilet chamber body is siphoned away, and then need not the water flushing, saved the energy.During concrete enforcement, described toilet inner body wall preferably adopts high molecule nano material, makes it have the very little characteristics of adhesiveness, can be conveniently to the removing of ight soil dirt.Certainly, the present invention also is suitable for using under the situation such as residential quarter dwelling house, particularly adopts in the abundant area surroundings of wind energy resources.
As optimization, the outlet of described toilet body lower end is access to the ight soil treating pond by the defecation pipeline, and described ight soil treating pond has the gas exhaust duct that upwards arranges, and is provided with the defecation one-way cock in the described defecation pipeline.Like this, one-way cock can prevent from gushing on the foul smell of ight soil treating pond, and the material of wherein discharge feces inner-walls of duct and one-way cock also preferably adopts the high molecule nano material with low-adhesion.In addition, more particularly, in the ight soil treating pond, can be to adopt ight soil to shift package system to the ight soil processing of packing automatically, also can be to adopt the electro heat module to be set to add hot fermentation, perhaps after the harmless treatment such as ultraviolet light fixture irradiation-sterilize, encapsulation be shifted again.Make it realize nuisanceless processing better.
As optimization, described end cap lower surface also is provided with the secondary cleaning mechanism, described secondary cleaning mechanism comprises the stationary pipes that is fixed in end cap and arranges over against toilet body center downwards, the stationary pipes upper end is communicated with the vent pipe of storage tank by the stationary pipes free air diffuser, and connection place is provided with three-way flow divider valve, the stationary pipes lower end is sealed and matched rotationally and is connected with a rotation pipe, rotate that the pipe upper end is coaxial to be set with a driven gear, driven gear and a driving gear engagement, driving gear is fixed in the rotating shaft of a control motor, described control motor is fixed on the end cap, rotate the pipe lower end and have outside extension, the end, extension has downward opening.After optimizing like this, when cleaning, the pore that seat closet body self arranges carries out after the cleaning first time, can adopt this secondary cleaning mechanism to carry out the secondary cleaning, during its cleaning, giving vent to anger of storage tank enters into the secondary cleaning mechanism by three-way flow divider valve control air-flow, arrive through stationary pipes then and rotate the opening part ejection that Guan Houcong rotates pipe extension, lower end, start the control driven by motor simultaneously and rotate the pipe rotation, make the air-flow of lower ending opening place, extension ejection realize the secondary cleaning along rotating in a circumferential direction to the toilet body, because air-flow is to concentrate from an outlet ejection during secondary cleaning, so current rate is bigger, some that can be better cleaning for the first time cleans are adhered to the dirt that remains in the toilet inner body wall and are washed out, and make the toilet cleaning more totally and health.
As optimization, also be connected with second transmission shaft by electric-controlled automatic clutch on the described collection fan blade wheel shaft, second transmission shaft connects an electrical generator by second transmission device, and generator output end connects a storage battery and can charge for it; Described air inlet impeller is fixedly installed on the air inlet paddle shaft, and described air inlet paddle shaft rear and front end is connected with front axle and rear axle respectively by unidirectional coupling, and described first transmission device and front axle link to each other and realize and being connected of air inlet impeller by front axle; Described accumulator output end is electrically connected with an electrical motor, and motor output shaft links to each other with rear axle by the 3rd transmission device.After optimizing like this, after storage tank gas storage has been expired, can will collect fan blade wheel shaft and the butt joint of second transmission shaft by electric-controlled automatic clutch, and then make the collection wind impeller to drive generator for electricity generation by second transmission device, the electric energy savings can be used in storage battery.Simultaneously, be connected with front axle and rear axle by unidirectional coupling respectively before and after the air inlet paddle shaft, like this, when the collection wind impeller can be collected wind energy, can be forward axle drive the air inlet paddle shaft and rotate to be air receiver gas storage, when needing gas storage after the air receiver venting, and when not having wind this moment, just can control storage battery and drive motor start-up, and then rotate to be air receiver gas storage by rear axle drive air inlet paddle shaft.Wherein, adopt unidirectional coupling to connect front axle and rear axle, mutually noninterfere when making two drive path work guarantees carrying out smoothly of switching.In addition, the electric energy that storage battery is put aside can also need be exported with the power supply of electrical unit as other.
As optimization, described end cap lower surface also is provided with the uviol lamp for sterilization.Like this, can play good bactericidal action, when specifically implementing, uviol lamp also can adopt storage battery to power.
In sum, wind energy environmental protection toilet of the present invention can be gathered and utilize wind resource to clean, and need not water, has the advantage of energy-conserving and environment-protective.
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Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Be illustrated in fig. 1 shown below, a kind of wind energy environmental protection toilet, comprise the toilet body 1 of being with inner chamber, the hinged end cap 2 that is provided with in toilet mouth place, toilet body 1 upper end, also comprise for the collection wind impeller 3 of collecting wind energy, storage tank 4, described collection wind impeller 3 is arranged on the collection fan blade wheel shaft 5, collection fan blade wheel shaft 5 links to each other with the air inlet impeller 8 that is positioned at storage tank induction tract 7 by first transmission device 6 and can drive the 8 rotation air inlets of air inlet impeller, between air inlet impeller 8 and storage tank 4, also be provided with breather check valve 9 in the storage tank induction tract 7, described toilet body 1 upper end open place has the inwardly protruded jut of a circle, this jut inside has the gas channel 10 that a circle is communicated with, evenly be periphery on this jut and be provided with the pore 11 that a circle is close to the setting of toilet inner body wall downwards, pore 11 be communicated with gas channel 10 and the pore outgassing direction for toward same direction be obliquely installed make pore 11 give vent to anger the back air-flow can form downward cyclone along toilet body 1 inwall, described storage tank 4 is communicated with by the interior gas channel 10 of vent pipe 12 and jut, and described vent pipe 12 is provided with air flow rate solenoid electric valve 13.In this specific embodiment, the outlet of described toilet body 1 lower end is access to ight soil treating pond 14 by defecation pipeline 16, and described ight soil treating pond 14 has the gas exhaust duct 15 that upwards arranges, and is provided with defecation one-way cock 17 in the described defecation pipeline 16.In this specific embodiment, described end cap lower surface also is provided with the secondary cleaning mechanism, described secondary cleaning mechanism comprises the stationary pipes 18 that is fixed in end cap 2 and arranges over against toilet body center downwards, stationary pipes 18 upper ends are communicated with the vent pipe 12 of storage tank by stationary pipes free air diffuser 19, and connection place is provided with three-way flow divider valve 20, stationary pipes 18 lower ends are sealed and matched rotationally and are connected with a rotation pipe 21, rotate that pipe 21 upper ends are coaxial to be set with a driven gear 22, driven gear 22 and driving gear 23 engagements, driving gear 23 is fixed in the rotating shaft of a control motor 24, described control motor 24 is fixed on the end cap 2, rotate pipe 21 lower ends and have outside extension, the end, extension has downward opening.In this specific embodiment, also be connected with second transmission shaft 26 by electric-controlled automatic clutch 25 on the described collection fan blade wheel shaft 5, second transmission shaft 26 connects an electrical generator 28 by second transmission device 27, and electrical generator 28 mouths connect a storage battery 29 and can charge for it; Described air inlet impeller 8 is fixedly installed on the air inlet paddle shaft 30, described air inlet paddle shaft 30 rear and front ends respectively are connected with front axle 32 and rear axle 33 respectively by a unidirectional coupling 31, and described first transmission device 6 and front axle 32 links to each other and being connected and transmission by front axle 32 realizations and air inlet impeller 8; Described storage battery 29 mouths are electrically connected with an electrical motor 34, and electrical motor 34 output shafts link to each other with rear axle 33 by the 3rd transmission device 35.In this specific embodiment, described end cap lower surface also is provided with the uviol lamp 36 for sterilization.
Wind energy environmental protection toilet in the above-mentioned specific embodiment during its use, collects wind impeller for the collection wind energy, and then rotates by first transmission device drive air inlet impeller, for storage tank is inflated standby.After storage tank air pressure abundance, it is that battery charge is standby also that the collection wind impeller can drive generator for electricity generation by second transmission device.The electric power of storage battery can drive the rotation of air inlet impeller by the 3rd transmission device for passing through to drive electrical motor, and then inflate to storage tank, uses in the wind-force deficiency, makes storage tank keep sufficient air pressure at any time.In addition, the ionization of storage battery can also be for purposes such as illumination or ultraviolet-sterilizations.After the user goes to toilet, starting switch, switch control air flow rate solenoid electric valve and three-way flow divider valve, in the air-flow that makes storage tank is linked into gas channel on the toilet body from vent pipe, and then go out the toilet chamber body from pore, air-flow can form downward cyclone along the toilet inner body wall after pore was given vent to anger, and produced powerful siphon action, and the dirt that sticks to the toilet chamber body is siphoned away.Can continue to control three-way flow divider valve then changes its course from the stationary pipes free air diffuser through stationary pipes with rotate pipe and go out from rotating the outlet of pipe lower end air-flow, control electric motor starting simultaneously and drive and rotate the pipe rotation, and then make the air-flow that rotates the ejection of pipe lower ending opening place, extension realize the secondary cleaning along rotating in a circumferential direction to the toilet body, because air-flow is to concentrate from an outlet ejection during secondary cleaning, so current rate is bigger, some that can be better cleaning for the first time cleans are adhered to the dirt that remains in the toilet inner body wall and are washed out, and make the toilet cleaning more totally and health.
Above-mentioned working process, can control automatically by autonomous cruise speed system is set, this autonomous cruise speed system, comprise a control center, control center is connected with electric-controlled automatic clutch 25, electrical motor 34, air flow rate solenoid electric valve 13, three-way flow divider valve 20 and control motor 24 respectively, can realize automatic control.Simultaneously, during concrete enforcement, control system can also be done following further optimization, set up one at end cap 2 and detect the detector switch whether end cap closes, detector switch links to each other with control center, and at tachogen for detection of collection wind impeller 3 rotation situation of collection wind impeller 3 Position Design, this tachogen links to each other with control center then, and then arranging one for detection of the air pressure detection table of storage tank air pressure at storage tank, air pressure detects table and control center.Like this, can full automatic control effect.During concrete control, after the user goes to toilet, only need cover bottom end cover 2, detector switch detects end cap 2 close after, signal is passed to control center.Control center namely controls air flow rate solenoid electric valve and three-way flow divider valve, in the air-flow that makes storage tank earlier is linked into gas channel on the toilet body from vent pipe, and then goes out the toilet chamber body from pore and realizes cleaning for the first time.After cleaning continues the several seconds for the first time, control center continues control air flow rate solenoid electric valve and three-way flow divider valve, the air-flow that makes storage tank enters into from stationary pipes free air diffuser 19 and rotates the pipe ejection and realize cleaning for the second time, when cleaning for the second time, control center handles 24 work of control motor simultaneously, drives the rotation pipe and rotates, after the rotation pipe rotates several weeks, the secondary cleaning finishes, and can control the rotation pipe this moment and stop operating, and controls the air flow rate solenoid electric valve simultaneously air-flow is disconnected.In addition, control center detects table by air pressure and detects storage tank air pressure, when storage tank air pressure during less than specified value, need inflate for it, this moment, control center was again by tachogen detected set wind impeller 3 rotation situation, when collection wind impeller 3 wind-engagings when rotating speed is very fast in order, control center's control electric-controlled automatic clutch 25 disconnects, collection wind impeller 3 drives air inlet impeller 8 by first transmission device and rotates to be the storage tank inflation, control electric-controlled automatic clutch 25 engagements after inflation finishes, make collection wind impeller 3 drive generator for electricity generation by second transmission device, and collect electric energy by storage battery and utilize.When if the detection storage tank need be inflated, detecting collection wind impeller 3 simultaneously is subjected to wind-force less or be not subjected under the wind behaviour, control center directly controls electrical motor 34 work, and electrical motor 34 rotates to be the storage tank inflation by storage battery power supply and by the 3rd transmission device drive air inlet impeller 8.So just can realize that storage tank leans on wind-force air inlet and freely switching by the electric power air inlet according to actual conditions.Realize the control of automation completely.
As technique scheme another kind of technical scheme mutually arranged side by side, can be with the structure cancellation of wherein control motor 24, driving gear 23 and driven gear 24, change the structure that barber-pole stripes directly is set at rotation pipe 21 upper end inwalls into, like this, when air-flow enters rotation pipe 21 downwards from stationary pipes 22 after, can lean on the effect of barber-pole stripes, drive and rotate pipe 21 generation rotation automatically.Though the control reliability reduces relatively a little like this, and structure is simplified more.
In addition, when specifically implementing, described toilet inner body wall, defecation inner-walls of duct and defecation one-way cock all preferably adopt high molecule nano material, make it have the very little characteristics of adhesiveness, can be conveniently to the removing of ight soil dirt.During concrete enforcement, in the ight soil treating pond, can further adopt ight soil to shift package system to ight soil processings of packing automatically, or employing arrange the electro heat module and add hot fermentation, after perhaps processing equipment such as ultraviolet light fixture irradiation-sterilize was done harmless treatment to ight soil, encapsulation was shifted again; Be used for the plantation fertilising, belong to the natural and pollution-free green fertilizer, realize good ecological circulation.In addition, when needed, described ight soil treating pond can be set to two or more, to improve processing capacity.On gas exhaust duct 15 tops air extractor can be set also bleeds to tail gas, the tail gas that this air extractor also can further be connected to after the toilet chamber body is washed dirt in the toilet by pipeline is further bled, check valve wherein is set in the pipeline of Connection Block closet endosome to be poured in down a chimney to avoid tail gas, at end cap breather cheek valve being set again makes toilet body inner exhaust gas to be extracted better, design a combustion chamber at last again and discharge after to exhaust combustion, can realize the innoxious fully of exhaust emissions.During concrete enforcement, a storage tank can arrange a plurality of vent pipes, is with a plurality of toilets to use.
The present invention is particularly suitable for installing and using at vehicle such as train or steamers, can avoid that ight soil effluxes the pollution that causes on the vehicle, also can collect the wind energy of utilizing the vehicle to run on the way, avoid the loss of water resource, also alleviate vehicle load, improved load-carrying capacity.Simultaneously, the present invention also can be suitable for using under the situations such as residential quarter dwelling house or lavatory, scenic spot, particularly adopts in the abundant area surroundings of wind energy resources, has green energy resource, and advantage such as turn waste into wealth.Simultaneously, in the specific implementation, can also do further optimization, set up solar panels and link to each other with storage battery, solar panels are used for gathering solar power and charge a battery, this is because generally speaking, sun sky wind-force is less, and cloudy wind-force is bigger, and solar power and wind energy combine like this, can guarantee under the multiple weather condition, can both provide the power supply of abundance to utilize for storage battery.
Claims (5)
1. wind energy environmental protection toilet, comprise the toilet body of being with inner chamber, the hinged end cap that is provided with in toilet body toilet mouth place, upper end, it is characterized in that, also comprise for the collection wind impeller of collecting wind energy, storage tank, described collection wind impeller is arranged on the collection fan blade wheel shaft, collection fan blade wheel shaft links to each other with the air inlet impeller that is positioned at the storage tank induction tract by first transmission device and can drive air inlet impeller rotation air inlet, between air inlet impeller and storage tank, also be provided with breather check valve in the storage tank induction tract, described toilet body upper end open place has the inwardly protruded jut of a circle, this jut inside has the gas channel that a circle is communicated with, evenly be periphery on this jut and be provided with the pore that a circle is close to the setting of toilet inner body wall downwards, pore be communicated with gas channel and the pore outgassing direction for toward same direction be obliquely installed make pore give vent to anger the back air-flow can form downward cyclone along the toilet inner body wall, described storage tank is communicated with gas channel in the jut by vent pipe, and described vent pipe is provided with the air flow rate solenoid electric valve.
2. wind energy environmental protection toilet as claimed in claim 1, it is characterized in that, the outlet of described toilet body lower end is access to the ight soil treating pond by the defecation pipeline, and described ight soil treating pond has the gas exhaust duct that upwards arranges, and is provided with the defecation one-way cock in the described defecation pipeline.
3. wind energy environmental protection toilet as claimed in claim 1, it is characterized in that, described end cap lower surface also is provided with the secondary cleaning mechanism, described secondary cleaning mechanism comprises the stationary pipes that is fixed in end cap and arranges over against toilet body center downwards, the stationary pipes upper end is communicated with the vent pipe of storage tank by the stationary pipes free air diffuser, and connection place is provided with three-way flow divider valve, the stationary pipes lower end is sealed and matched rotationally and is connected with a rotation pipe, rotate that the pipe upper end is coaxial to be set with a driven gear, driven gear and a driving gear engagement, driving gear is fixed in the rotating shaft of a control motor, described control motor is fixed on the end cap, rotate the pipe lower end and have outside extension, the end, extension has downward opening.
4. wind energy environmental protection toilet as claimed in claim 1, it is characterized in that, also be connected with second transmission shaft by electric-controlled automatic clutch on the described collection fan blade wheel shaft, second transmission shaft connects an electrical generator by second transmission device, and generator output end connects a storage battery and can charge for it; Described air inlet impeller is fixedly installed on the air inlet paddle shaft, and described air inlet paddle shaft rear and front end is connected with front axle and rear axle respectively by unidirectional coupling, and described first transmission device and front axle link to each other and realize and being connected of air inlet impeller by front axle; Described accumulator output end is electrically connected with an electrical motor, and motor output shaft links to each other with rear axle by the 3rd transmission device.
5. wind energy environmental protection toilet as claimed in claim 1 is characterized in that, described end cap lower surface also is provided with the uviol lamp for sterilization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208908.7A CN103241253B (en) | 2013-05-30 | 2013-05-30 | Environment-friendly wind energy toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208908.7A CN103241253B (en) | 2013-05-30 | 2013-05-30 | Environment-friendly wind energy toilet |
Publications (2)
| Publication Number | Publication Date |
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| CN103241253A true CN103241253A (en) | 2013-08-14 |
| CN103241253B CN103241253B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310208908.7A Expired - Fee Related CN103241253B (en) | 2013-05-30 | 2013-05-30 | Environment-friendly wind energy toilet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104925076A (en) * | 2014-03-18 | 2015-09-23 | 洛阳天飞科旭科技有限公司 | Railway pollution discharge apparatus |
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| EP1698735A1 (en) * | 2005-01-25 | 2006-09-06 | Toral Technical Trade, S.L. | Vacuum and pressure toilet system |
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| US20100031432A1 (en) * | 2006-12-21 | 2010-02-11 | Lappalainen Vesa Nmi | Vacuum sewage system |
| CN103085828A (en) * | 2013-01-29 | 2013-05-08 | 常熟南师大发展研究院有限公司 | Windmill type train closestool releasing bag |
| CN203263261U (en) * | 2013-05-30 | 2013-11-06 | 左红 | Low-carbon toilet bowl |
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2013
- 2013-05-30 CN CN201310208908.7A patent/CN103241253B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1698735A1 (en) * | 2005-01-25 | 2006-09-06 | Toral Technical Trade, S.L. | Vacuum and pressure toilet system |
| US20100031432A1 (en) * | 2006-12-21 | 2010-02-11 | Lappalainen Vesa Nmi | Vacuum sewage system |
| CN201015999Y (en) * | 2007-02-02 | 2008-02-06 | 珠海恒益环保科技工程有限公司 | Train environment protection water closet |
| CN201330438Y (en) * | 2008-12-30 | 2009-10-21 | 安徽金诚汽车科技有限公司 | Vehicle toilet air blasting system |
| CN103085828A (en) * | 2013-01-29 | 2013-05-08 | 常熟南师大发展研究院有限公司 | Windmill type train closestool releasing bag |
| CN203263261U (en) * | 2013-05-30 | 2013-11-06 | 左红 | Low-carbon toilet bowl |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104925076A (en) * | 2014-03-18 | 2015-09-23 | 洛阳天飞科旭科技有限公司 | Railway pollution discharge apparatus |
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| CN103241253B (en) | 2015-07-01 |
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