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WO2002047527A1 - W.c. ecologique - Google Patents

W.c. ecologique Download PDF

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Publication number
WO2002047527A1
WO2002047527A1 PCT/CN2001/001612 CN0101612W WO0247527A1 WO 2002047527 A1 WO2002047527 A1 WO 2002047527A1 CN 0101612 W CN0101612 W CN 0101612W WO 0247527 A1 WO0247527 A1 WO 0247527A1
Authority
WO
WIPO (PCT)
Prior art keywords
bag
rubber roller
toilet
gear
bracket
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.)
Ceased
Application number
PCT/CN2001/001612
Other languages
English (en)
Chinese (zh)
Inventor
Che Liu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU2002218948A priority Critical patent/AU2002218948A1/en
Publication of WO2002047527A1 publication Critical patent/WO2002047527A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K11/00—Closets without flushing; Urinals without flushing; Chamber pots; Chairs with toilet conveniences or specially adapted for use with toilets
    • A47K11/02—Dry closets, e.g. incinerator closets
    • A47K11/026—Dry closets, e.g. incinerator closets with continuous tubular film for receiving faeces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Definitions

  • the present invention relates to a toilet, and more particularly, to an environment-friendly toilet that does not require water. Background technique
  • the flush toilets currently used are all water flush toilets, but the water flush toilets have the following disadvantages:
  • the shape-preserving toilet in the present invention is mainly to solve the existing problems of the existing flush toilets. The above problem.
  • the environment-friendly toilet in the present invention includes a packaging bag and a toilet, wherein the toilet includes a ring and a cavity is formed inside the cavity, and the cavity is provided with a sealing device, a guide and the like.
  • the sealing device is provided on the upper side of the cavity adjacent to the seat, and the guiding device is provided below the sealing device; the packaging bag is installed on the toilet body, and a basin is formed in the cavity. shape.
  • the sealing device includes two lead screws, a motor, a set of electric heat sealers and a transmission belt, wherein the electric heat sealers are directly sleeved on two identical lead screws, and the left half of each lead screw Opposite to the direction of the right half of the wire pattern, the two lead screws are respectively connected to the motor through a transmission belt.
  • the guide device includes a guide roller, an active bag-pulling rubber roller, a passive bag-pulling rubber roller, a translation driving device of the main and passive bag-pulling rubber rollers, and a rotation driving device of the active bag-pulling rubber roller;
  • the guide The roller is directly fixed below the sealing device, and a concave return groove is provided on the active bag-pulling rubber roller;
  • the translation driving device of the main and passive bag-pulling rubber roller is composed of a motor, a transmission belt, a screw and a bracket The motor is directly fixed on the toilet seat, and the motor is connected to the lead screw through a transmission belt, and the bracket is directly sleeved on the lead screw.
  • the main and passive bag-pulling rubber rollers are mounted on the bracket, and One end thereof is connected by a gear and a tension spring, and the rotation driving device of the active bag-pulling rubber roller is composed of a low-speed motor directly fixed on the bracket and drivingly connected with the active bag-pulling rubber roller.
  • the rotation driving device of the active bag-pulling rubber roller may include a large gear and a pinion each connected by a key and coaxially slidingly disposed at one end of the active bag-pulling rubber roller, and the large gear is fixedly connected to the small gear;
  • a compression spring is sleeved on the active bag rubber roller shaft between the large gear and the bracket, corresponding to the large and small gears.
  • Large and small racks are staggered above and below the large and small gears, respectively.
  • the small racks are fixed on the inner wall of the toilet, and a pressing piece is fixed on the upper rack, and a lever that enables the large and small gears to move axially is pivotally connected to the inner wall of the toilet.
  • the lever is in the An elastic steel sheet is installed at one end thereof, and a reset tension spring is connected between the lever and the inner wall of the toilet body.
  • the rotation driving device of the active bag-pulling rubber roller may also be coaxially fixed at one end of the active bag-pulling rubber roller with a pulley and a swinging piece, corresponding to the pulley, and the other end of the swinging piece is pivotally connected with another A pulley is coaxially fixed with a gear, corresponding to the gear.
  • Upper and lower racks directly fixed on the inner wall of the seat are provided directly above and below the gear.
  • the two pulleys are connected by a transmission belt, and the other A tension spring and a cam are provided between the swinging piece and the bracket, wherein the cam is pivotally connected to the bracket and at the same time,
  • two stoppers capable of rotating the cam are provided on the inner wall of the toilet body.
  • the rotation driving device of the active bag-pulling rubber roller may also be a pivotal connection of the passive bag-pulling rubber roller on the support, and a swing piece at each of the two ends of the passive bag-pulling roller shaft, and the active bag pulling The rubber roller is mounted on the swinging piece; the active bag-pulling rubber roller is coaxially fixed at one end with a large gear and a small gear, corresponding to the large and small gears, which are staggered above and below the large and small gears, respectively.
  • the large and small racks are both fixed on the inner wall of the toilet body; the swinging piece is embedded with a toggle block inside, and the toggle block is directly pivoted on the bracket, At the same time, the pulling block is fixedly connected with a toggle lever.
  • two stoppers capable of rotating the toggle block are provided on the inner wall of the toilet seat.
  • the toilet seat may be fixed with a vacuum pumping device in the cavity.
  • the vacuum pumping device includes a vacuum pump, an air suction pipe, a sealing strip, a sealing strip bracket, a stop piece and an elastic element.
  • the vacuum pump is fixed in the toilet bowl.
  • the vacuum pump On the inner wall of the cavity of the body, the vacuum pump is connected with an odor exhaust pipe at its exhaust port, and the odor exhaust pipe extends all the way out of the toilet seat, and the suction port of the vacuum pump is connected to one end of the suction pipe, the suction pipe The other end is fixedly extended above the rear of the seat ring, and enters the pelvic cavity formed by the packaging bag.
  • Above the suction pipe is provided a blocking cloth that can prevent the suction pipe from being soiled.
  • the blocking cloth is hung on the seat.
  • the hook on the wall of the toilet body enables the baffle to be pulled down and renewed along with the packaging bag;
  • the seal holder is directly fixed on the electric heat sealer, and is slidably connected to the seal, and at the same time on the seal
  • a stopper and an elastic element capable of limiting the position of the sealing strip are provided between the electric heat sealer.
  • one end of the suction pipe is connected to a vacuum pump, and the other end is connected to the sealing strip through a gear and a bevel gear, and the sealing strip is extended over the rear of the seat ring to the inside of the pelvic cavity formed by the packaging bag. At the seal.
  • the guide roller may be provided with a pre-compression sheet on the inner side thereof, the pre-compression sheet is pivotally arranged on the inner wall of the toilet seat, and corresponding to the pre-compression sheet, a lower part of the electric heat sealer is capable of driving the pre-compression sheet to rotate. Preload driver.
  • sealing device and the guide device are connected to a motor through a clutch, and a heating device is provided on the seat ring, and a full box alarm device is provided in the cavity of the toilet bowl.
  • the environmentally friendly toilet in the present invention uses a plastic packaging bag to hold feces while vacuum sealing with a sealing device and a vacuum pumping device, and the vacuum-packed packaging bag is placed layer by layer and in an orderly manner through a guiding device.
  • the environmentally friendly toilet in the present invention no longer uses water for flushing, nor does it Sewage is then discharged into the river to reduce pollution to the river.
  • feces packed in packaging bags can be transported to farms that require natural fertilizers by means of transportation to realize the possibility of recycling natural fertilizers.
  • the packaging bag of the environmentally-friendly toilet is passed through the seat and enters the cavity. After use, the packaging bag is pulled down by the guide device located in the cavity of the toilet, and the new packaging bag will be re-slewed in the seat.
  • the outer side of the circle makes the packaging bag a disposable product and avoids cross infection.
  • the environmentally friendly toilet in the present invention no longer uses water for washing, it not only saves water resources, but also does not need to install water pipes.
  • the installation process of the environmentally friendly toilet in the present invention is simplified and the installation cost is reduced. , And can be moved at will, more suitable for the use of tourist attractions and temporary toilets along the road.
  • FIG. 1 is a schematic perspective view of the appearance of an environmentally friendly toilet in the present invention
  • FIG. 2 is a schematic cross-sectional view of an environmentally friendly toilet in the present invention
  • FIG. 3 is a schematic longitudinal sectional view of the environmentally friendly toilet shown in FIG. 2;
  • FIG. 4 is a schematic top view of the ring-shaped toilet shown in FIG. 2;
  • FIG. 5 is a schematic cross-sectional view of another embodiment of an environmentally friendly toilet in the present invention.
  • FIG. 6 is a schematic cross-sectional view of another embodiment of an environmentally friendly toilet in the present invention.
  • FIG. 7 is a schematic longitudinal sectional view of the environmentally friendly toilet shown in FIG. 6;
  • FIG. 8 is a schematic structural diagram of a packaging bag in the present invention. detailed description
  • the environment-friendly toilet in the present invention includes a toilet body 1 and a packaging bag 2.
  • the shape of the toilet body 1 is similar to that of the existing water flush toilet. It is divided into two parts, the front part and the rear part, and two interconnected front cavities 10 and a rear cavity are respectively formed in the front and rear parts. ⁇ 11 ⁇ Body 11.
  • the front cavity 10 is provided with a ring 12 at its upper end, and an arc-shaped baffle plate 13 is provided on the outer side of the seat ring 12.
  • the arc-shaped baffle plate 13 is used to form a ring on the outside of the toilet body 1.
  • a pressure capable of providing a certain resistance to the packaging bag 2 is provided on the inner side of the curved bag stopper 13.
  • the bag strip 14 ensures that the packaging bag 2 is in a stretched state.
  • the toilet seat 1 is provided with a sealing device and a guide device in its front cavity 10, and a vacuum pumping device is provided in its rear cavity 11.
  • the sealing device includes a motor 151 controlled by a time relay, two lead screws 152 with different left and right half wire patterns, a set of electric heat sealers 153, and a transmission belt 154.
  • the motor 151 is respectively connected to two screws 152 through a transmission belt 154, and the two screws 152 are driven by the motor 151 to rotate.
  • the two electric heat sealers 153 are sleeved on the two wire duo 152 at relative positions, and can be moved in the opposite direction on the screw 152 as the screw 152 rotates.
  • the vacuum pumping device includes a vacuum pump 171, a suction pipe 172, a seal 173, a seal holder 174, a stopper piece 175, and a torsion spring 176.
  • the sealing strip bracket 174 is directly fixed on the electric heat sealer 153, and the sealing strip 173 is slidably connected with the sealing strip bracket 174.
  • four sets of stopper pieces 175 and torsion springs 176 are provided.
  • the sealing strip 173 can be located at On the back side, when sealing, it first reaches the intermediate sealing position for sealing, and finally, the electric heat sealer 153 reaches the intermediate sealing position for thermocompression bonding.
  • the stopper piece 175 between the sealing strip 173 and the electric heat sealer 153 may be composed of two levers slidingly connected, and pivotally connected to each other at one end of the two sets of stopper pieces 175 opposite to each other.
  • the brackets and the brackets in the toilet seat 1 are respectively slidably pivoted. As shown in FIG.
  • the sealing strip 173 is pivotally connected to a swing rod 1721 at one end thereof.
  • the swing rod 1721 is fixedly connected with a gear 1722, and the gear 1722 meshes with the bevel gear 1723 to drive the suction pipe 172 along with the sealing strip 173— ⁇ Move.
  • the guiding device includes a motor 161, two lead screws 162, a bracket 163, an active bag roller 164, a passive bag roller 165, a rack 166, a swinging device 167, and a guide roller 168. And transmission belt 169.
  • the guide roller 168 is fixed below the sealing device and is directly mounted on the toilet seat 1.
  • the rack 166 is composed of four sections, each of which is directly fixed to the inner wall of the toilet body 1 and arranged in an alternating arrangement of up, down, left and right.
  • the two lead screws 162 are respectively connected to the motor 161 through a transmission belt 169 and are driven by the motor 161.
  • the motors in the present invention are controlled by their respective control switches, and the control devices of the motors 151 and 161 are prior art. Not detailed.
  • a bracket 163 is directly sleeved on the two screw rods 162, so that the bracket 163 can move in the opposite direction as the screw rod rotates.
  • the active bag-pulling rubber roller 164 is provided with a concave reflux groove on the rubber roller that can prevent the packaging bag 2 from being crushed.
  • the active bag-pulling rubber roller 164 and the passive bag-pulling rubber roller 165 are directly mounted on the bracket 163, and are connected between the active bag-pulling rubber roller 164 and the passive bag-pulling rubber roller 165 through a gear and a tension spring 1643 to ensure active pulling
  • the bag rubber roller 164 and the passive bag rubber roller 165 rotate synchronously and in reverse, and have appropriate pressure and distance.
  • a large gear 1641 and a small gear 1642 are coaxially slidably connected to the other end of the active bag-pulling rubber roller 164 through a keyway, and the large and small gears are fixedly connected to the rack 166 at four different positions in sequence.
  • the meshing ensures that the active bag pulling rubber roller 164 and the passive bag pulling rubber roller 165 can rotate at a fixed direction and a linear speed that changes twice.
  • the swinging device 167 includes a compression spring 1671 sleeved on the shaft of the active bag-pulling roller 164 and between the bracket 163 and the large gear 1641.
  • the pressure spring 1671 is fixed on the upper rack 1661.
  • the pressing piece 1672, the pinion 1642 pivoted on the inner wall of the toilet seat is pressed into the lever 1673, and an elastic steel plate 1674 is fixed on the lever 1673, and the return spring 1675 is installed between the pressing lever 1673 and the inner wall of the toilet seat.
  • a lever driving block 1676 provided on the bracket 163.
  • the working process of the guiding device is as follows:
  • the motor 161 drives the screw 162 to rotate through the transmission belt 169, so that the bracket 163 drives the active bag roller 164 and the large gear 1641, the small gear 1642—the same moves from right to left, and when the large gear 1641 moves
  • the pressure piece 1672 fixed on the upper rack 1661 ends the large gear 1641 loses the pressure inward, and is ejected by the pressure spring 1671, and detaches from the upper rack 1661 and is placed under pressure. Tablet 1672 and beyond.
  • the pinion 1642 is engaged with the lower pinion 1662.
  • the motor 161 reverses direction, the screw 162 starts to reverse, and the large gear 1641 and the small gear 1642 move from left to right with the bracket 163 and rotate at a linear speed twice the original speed.
  • the lever driving block 1676 presses against the elastic steel sheet 1674, deforms it, and presses the lever 1673 to press the small gear 1642 inward, and the bracket 163 Driven by the large gear 1641, the small gear 1642 continues to the right to the top of the upper small rack 1663, the pressure plate 1672 behind the large gear 1641 ends, the large gear 1641, the small gear 1642 loses resistance, and the pressure on the lever 1673
  • the lower part is pressed in, so that the pinion 1642 is meshed with the upper pinion 1663.
  • the screw 162 reverses, driving the large gear 1641, the small gear 1642 to start moving from right to left, so that the large gear 1641 enters the pressing plate 1672, and moves to the initial state under its blocking. Repeat the above process to complete the packaging bag. Placed layer by layer.
  • the guiding device in another embodiment mainly includes a motor 161 and two reciprocating wires.
  • the guide roller 168 is directly fixed below the sealing device, and two reciprocating screws 162
  • the motor 161 is connected to the motor 161 through a transmission belt 169, and the bracket 163 is directly sleeved on the reciprocating screw 162.
  • the active bag pulling roller 164 and the passive bag driving roller 165 are installed in the lower half of the bracket 163.
  • the bag rubber roller 164 and the passive bag rubber roller 165 are connected to the tension spring 1643 through gears.
  • the active bag rubber roller 164 is coaxially fixed to a pulley 1644 at the other end thereof, and is pivotally connected to a swing piece 1677.
  • another pulley 1645 is provided at the other end of the swash plate 1677, and a gear 1646 is coaxially fixed to the pulley 1645.
  • An upper rack 1661 and a lower gear are provided near the upper and lower sides of the gear 1646.
  • a strip 1662 is provided with a transmission belt 1647 between the pulley 1644 and the pulley 1645.
  • a spring 1678 and a cam 1679 are arranged between the swing piece 1677 and the bracket 163. The cam 1679 is pivotally connected to the bracket 163. Cam 1679 rpm The stopper 1670.
  • the guiding device includes a motor 161, two reciprocating screws 162, a bracket 163, an active bag-pulling rubber roller 164, a passive bag-pulling rubber roller 165, and a rack 166 , A swinging device 167, a guide roller 168, and a transmission belt 169.
  • the guide roller 168 is fixed below the sealing device and is directly mounted on the toilet seat 1.
  • the two reciprocating screws 162 are connected to the motor 161 through a transmission belt 169, and are driven by the motor 161.
  • a bracket 163 is directly sleeved on the two reciprocating screws 162, so that the bracket 163 can move backwards and forwards as the reciprocating screw rotates. .
  • the active bag-pulling rubber roller 164 is provided with a concave reflow groove on the rubber roller that can prevent the packaging bag 2 from being crushed.
  • the passive bag-pulling rubber roller 165 is directly installed on the bracket 163. The end is pivotally connected to two swinging pieces 16701. An active bag-pulling roller 164 is mounted on the swinging piece 16701, and large gears 1648 and small gears 1649 are coaxially fixed at both ends thereof.
  • a dial is embedded in the swinging piece 16701.
  • the moving block 16702 and the toggle block 16702 are pivotally connected to the bracket 163 and are fixedly connected to the toggle lever 16703 at the same time.
  • a rack 166 is provided above and below the large gear 1648 and the small gear 1649.
  • the rack 166 is composed of four sections, each of which is directly fixed to the inner wall of the toilet body 1 and arranged in an alternating arrangement of up, down, left and right.
  • the packaging bag 2 is a barrel-shaped plastic bag sealed at one end.
  • the plastic bag is made of non-polluting and degradable plastic. Its shape is the same as our usual packaging bag for rice and flour.
  • the length is longer, usually about 3 meters, or even longer.
  • the diameter of the packaging bag 2 is slightly larger than the outer diameter of the seat ring 12.
  • the bottom of the packaging bag 2 faces up and is squeezed into the space 18 for placing the packaging bag 2 on the outside of the toilet body 1 before passing through the pressure strip 14 and passing through the seat 12 It is folded back into the front cavity of the toilet seat 1 and clamped by the guide device (introduced and clamped between the active bag-pulling rubber roller and the passive bag-pulling rubber roller via the guide roller).
  • the guide device Introduced and clamped between the active bag-pulling rubber roller and the passive bag-pulling rubber roller via the guide roller.
  • a person only needs to sit directly on the seat 12 in a size convenient for the plastic packaging bag 2 and then press the sealing button to install a sealing device and an evacuation device inside the toilet body 1. Then it works automatically and vacuum-packs the plastic packaging bag 2. Press the pull bag button again to pull the packed toilet bag into the front cavity 10 through the guide device, and place it in an orderly and layer-by-layer manner.
  • the environmentally friendly toilet in the present invention can not only save water resources, make full use of natural organic fertilizers, but also be convenient to install and not easily cause cross infection.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Non-Flushing Toilets (AREA)

Abstract

L'invention concerne un W.C. écologique, comprenant un sac (2) et un corps de W.C. (1). Ledit corps de W.C. (1) comprend un élément annulaire de siège (12) au-dessous duquel une chambre est formée. Ladite chambre est dotée d'un moyen d'étanchéité et d'un moyen de guidage. Ledit moyen d'étanchéité se trouve à proximité de l'élément annulaire de siège, dans le côté supérieur de la chambre, et le moyen de guidage est situé au-dessous du moyen d'étanchéité. Le sac (2) est monté sur le corps (1) de W.C. et est formé, de sorte qu'il présente la forme d'une cuvette dans la chambre.
PCT/CN2001/001612 2000-12-11 2001-12-10 W.c. ecologique Ceased WO2002047527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002218948A AU2002218948A1 (en) 2000-12-11 2001-12-10 An environment-protecting type toilet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN00261402.2 2000-12-11
CN00261402U CN2452433Y (zh) 2000-12-11 2000-12-11 一种环保型座便器

Publications (1)

Publication Number Publication Date
WO2002047527A1 true WO2002047527A1 (fr) 2002-06-20

Family

ID=4645387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2001/001612 Ceased WO2002047527A1 (fr) 2000-12-11 2001-12-10 W.c. ecologique

Country Status (3)

Country Link
CN (2) CN2452433Y (fr)
AU (1) AU2002218948A1 (fr)
WO (1) WO2002047527A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015119517A1 (fr) * 2014-02-07 2015-08-13 Ies-Ingenieria Electrica Especializada Appareil sanitaire écologique sans eau

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100479731C (zh) * 2003-11-17 2009-04-22 刘彻 环保免冲便器
CN105769474B (zh) * 2016-03-18 2017-12-05 薄和秋 一种全自动智能护理床及闭环控制系统
CN106361513B (zh) * 2016-09-09 2018-08-31 江苏科技大学 一种全自动护理床及其运行方法
CN109533488B (zh) * 2019-01-18 2023-12-01 广东三丰环保科技有限公司 一种打包装置、污物包装方法及应用打包装置的无水马桶

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2225843Y (zh) * 1995-07-20 1996-05-01 冯春元 无冲洗的清洁便器
CN2269173Y (zh) * 1996-04-10 1997-12-03 周家正 自动袋包装大便器
JPH09313401A (ja) * 1996-05-31 1997-12-09 Toyoda Gosei Co Ltd ポータブルトイレ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2225843Y (zh) * 1995-07-20 1996-05-01 冯春元 无冲洗的清洁便器
CN2269173Y (zh) * 1996-04-10 1997-12-03 周家正 自动袋包装大便器
JPH09313401A (ja) * 1996-05-31 1997-12-09 Toyoda Gosei Co Ltd ポータブルトイレ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015119517A1 (fr) * 2014-02-07 2015-08-13 Ies-Ingenieria Electrica Especializada Appareil sanitaire écologique sans eau

Also Published As

Publication number Publication date
CN1392786A (zh) 2003-01-22
AU2002218948A1 (en) 2002-06-24
CN2452433Y (zh) 2001-10-10

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