WO2013145999A1 - Appareil de nettoyage de toilettes - Google Patents

Appareil de nettoyage de toilettes Download PDF

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Publication number
WO2013145999A1
WO2013145999A1 PCT/JP2013/054768 JP2013054768W WO2013145999A1 WO 2013145999 A1 WO2013145999 A1 WO 2013145999A1 JP 2013054768 W JP2013054768 W JP 2013054768W WO 2013145999 A1 WO2013145999 A1 WO 2013145999A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
toilet
toilet bowl
water supply
blow
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/JP2013/054768
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English (en)
Japanese (ja)
Inventor
啓介 平井
祥 伊藤
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.)
Lixil Corp
Original Assignee
Lixil Corp
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 Lixil Corp filed Critical Lixil Corp
Publication of WO2013145999A1 publication Critical patent/WO2013145999A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D3/00—Flushing devices operated by pressure of the water supply system flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D2201/00—Details and methods of use for water closets and urinals not otherwise provided for
    • E03D2201/30—Water injection in siphon for enhancing flushing

Definitions

  • the present invention relates to a toilet bowl cleaning device.
  • Patent Document 1 discloses a conventional flush toilet.
  • This flush toilet includes a toilet body and a toilet cleaning device.
  • the toilet body has a toilet bowl and a toilet drainage channel communicating with the lower part of the toilet bowl.
  • the toilet bowl main body has the 1st water outlet which discharges wash water along the surface of a toilet bowl part, and the 2nd water outlet which discharges wash water in the toilet bowl drainage channel in the downstream direction.
  • the toilet bowl cleaning device supplies cleaning water to the first water outlet and the second water outlet.
  • the flush toilet has a negative pressure delay part in the toilet drainage channel.
  • the negative pressure delay portion is constituted by a water film formed in the downstream portion of the toilet drainage channel when the wash water discharged from the second water discharge port flows down the toilet drainage channel.
  • this flush toilet bowl When this flush toilet bowl performs blow washing for discharging washing water from the second water outlet, it is possible to transport filth and the like in the downstream direction of the toilet drainage channel by the momentum of the washing water. At this time, since the upstream end opening of the toilet drainage channel is exposed at the lower part of the toilet bowl, if the pressure in the toilet room is low, odor may be drawn from the toilet drainage channel into the toilet room through the toilet bowl. is there. However, in this flush toilet, the odor in the downstream drainage channel is not easily drawn into the toilet room via the toilet bowl by the negative pressure delay unit that is a water film formed in the downstream part of the toilet drainage channel. can do.
  • the flush toilet of Patent Document 1 requires a structure for forming a water film in the downstream portion of the toilet drainage channel. For this reason, in this flush toilet, the shape of the toilet drainage channel becomes complicated, and there is a possibility that the flow of the toilet drainage channel will be affected. Moreover, this flush toilet bowl is in a state where the water level in the toilet bowl is lowered by performing blow cleaning, and the upstream end opening of the toilet drainage channel is exposed at the lower part of the toilet bowl. At this time, if the water film is not well formed in the downstream part of the toilet bowl, the odor in the toilet drainage channel may be drawn into the toilet room through the toilet bowl.
  • the present invention has been made in view of the above-described conventional situation, and performs toilet cleaning well and can prevent odor from being drawn into the toilet room from the toilet drainage channel through the toilet bowl. Providing a device is a problem to be solved.
  • the toilet bowl cleaning device of the present invention discharges the wash water in the downstream direction through the first water outlet for discharging the wash water along the surface of the toilet bowl and the toilet drainage channel communicating with the lower part of the toilet bowl.
  • a toilet cleaning device for supplying cleaning water to a water outlet, A first water supply channel communicating with the first water outlet; A second water supply channel communicating with the second water outlet; A flow control device for separately controlling the flow of washing water in the first water supply channel and the second water supply channel, This flow control device Opening the second water supply channel, discharging the maximum amount of washing water from the second water discharge port, and executing the first blow water discharge to convey filth etc.
  • the first water supply channel is opened during the first blow water discharge, and the water discharged from the first water discharge port is poured into the lower part of the toilet bowl part to execute the water discharge.
  • the flow rate of the wash water flowing through the second water supply channel is decreased, the flow rate of the wash water flowing through the second water supply channel is increased again, and the momentum of the wash water discharged from the second water discharge port Performing second blow water discharge to push the odor in the toilet drainage channel downstream,
  • the second water supply path is closed to end the second blow water discharge, and then the first water supply path is closed to end the pot water discharge.
  • This toilet flushing device opens the second water supply channel and executes the first blow spout from which the maximum flow rate of the flush water is spouted from the second spout. It is conveyed to the downstream side of the road, and the water level in the toilet bowl is lowered. In this state, when the first water supply channel is opened and the bowl water discharge is executed, the wash water discharged from the first water outlet flows down along the surface of the toilet bowl and flows into the lower part of the toilet bowl, and the second water outlet. It flows out to the downstream side of the toilet drainage channel by the momentum of the washing water discharged from the toilet.
  • this toilet flushing apparatus makes the inflow port which is the upstream end opening of the toilet drainage channel exposed in the lower part of the toilet bowl part in the first blow spout, and does not raise the water level in the toilet bowl part at the lowest level.
  • cleaning apparatus pushes the odor in a toilet drainage channel into the downstream with the wash water discharged from the 2nd outlet in the 1st blow water discharge, and does not make it flow backward to the toilet bowl side.
  • the flow rate refers to the amount of water that flows per unit time (hereinafter the same).
  • this toilet flushing device once executes a second blow spout for increasing the flow rate of the wash water flowing through the second water supply channel after once reducing the flow rate of the wash water flowing through the second water supply channel.
  • the time during which the flow rate is reduced is set to a short time, and the flow rate of the cleaning water flowing through the second water supply path is increased again to execute the second blown water discharge.
  • the toilet cleaning device can prevent the odor in the toilet drainage channel from flowing backward to the toilet bowl side.
  • this toilet flushing device Since this toilet flushing device is maintained in a state where the water level in the toilet bowl is raised at the time when the second water supply channel is closed and the second blow-off water is finished, the flushing water outlet at the toilet bowl drainage channel is quickly washed out. Can be blocked. For this reason, this toilet bowl washing
  • cleaning apparatus can prevent the odor in a toilet bowl drainage channel flowing backward to the toilet bowl side.
  • the toilet bowl cleaning device of the present invention can perform toilet bowl cleaning well and prevent odor from being drawn into the toilet room from the toilet bowl drainage channel through the toilet bowl.
  • (C) is the flush toilet bowl of an Example, Comprising: It is the schematic which shows the state which the flow volume of the wash water which flows through a 2nd water supply path after 1st blow water discharge fell, and the water level in a toilet bowl part rose.
  • (D) is the flush toilet bowl of an Example, Comprising: It is the schematic which shows the state which pushes an odor in the downstream direction of a toilet drainage channel by 2nd blow water discharge.
  • (E) is the flush toilet bowl of an Example, Comprising: It is the schematic which shows the state in which the water level in a toilet bowl rises and a water seal part is formed.
  • the flow rate of the wash water flowing through the second water supply channel when executing the second blow water discharge of the present invention is less than the maximum flow rate of the wash water flowing through the second water supply channel when executing the first blow water discharge.
  • the toilet flushing device can push the odor in the toilet drainage channel in the downstream direction while suppressing a decrease in the water level in the toilet bowl when the second blow water discharge is executed. For this reason, since the water level in the toilet bowl portion is maintained at a position where the water level in the toilet bowl portion has risen after the second blow water discharge is completed, this toilet flushing device can seal the inflow port of the toilet drainage channel at an early stage, It is possible to prevent the odor from flowing backward from the toilet drainage channel to the toilet bowl side.
  • the second blow water discharge of the present invention decreases the flow rate of the wash water flowing through the second water supply channel and increases the flow rate of the wash water flowing through the second water supply channel after the water level in the toilet bowl starts to rise. Can be.
  • the toilet bowl cleaning device can close the inlet of the toilet drainage channel at an early stage. For this reason, this toilet bowl washing
  • cleaning apparatus can prevent that an odor flows backward from a toilet bowl drainage channel to the toilet bowl part side.
  • the flush toilet of the embodiment includes a toilet body 10 and a toilet cleaning device 20.
  • the toilet body 10 includes a toilet bowl 11 and a toilet drainage channel 12.
  • the toilet bowl 11 forms a rim water passage 13 formed in a step shape on the upper periphery.
  • an inflow port 12 ⁇ / b> A that is an upstream end of the toilet drainage channel 12 is opened at a lower portion of the toilet bowl 11. That is, the toilet drainage channel 12 communicates with the lower part of the toilet bowl 11.
  • the toilet drainage channel 12 includes an ascending channel 12B that rises from the lower part of the toilet bowl 11 along the outer surface of the toilet bowl 11, and a descending channel that extends downward continuously from the upper end of the ascending channel 12B.
  • the downstream end of the descending flow path 12 ⁇ / b> C is connected to the drainage connection member 14.
  • the toilet drainage channel 12 communicates through the drainage connection member 14 with a drain pipe (not shown) drawn to the floor F of the toilet room in which the flush toilet is installed.
  • the toilet body 10 has a first water discharge port 15 that opens at the upstream end of the rim water passage 13 and discharges wash water along the rim water passage 13. Further, the toilet body 10 is continuous to the rear of the first water discharge port 15 and forms a water discharge space for storing a bowl cleaning nozzle 24 described later. Further, the toilet body 10 has a toilet drainage nozzle 17 attached to the lower end of the ascending flow path 12B of the toilet drainage channel 12 and having a second water discharge port 16 formed at the center of the tip.
  • the toilet bowl cleaning device 20 includes a first water supply path 22 and a second water supply path 23 formed by branching a water supply path 21 whose upstream end communicates with a water supply source.
  • the first water supply path 22 has a bowl cleaning nozzle 24 at the downstream end.
  • the bowl washing nozzle 24 is inserted into the toilet body 10 from the rear of the toilet body 10 and is disposed in the water discharge space. For this reason, the cleaning water discharged from the bowl cleaning nozzle 24 flows through the water discharging space and flows out from the first water outlet 15 to the rim water passage 13. That is, the first water supply path 22 communicates with the first water discharge port 15.
  • the second water supply passage 23 is inserted into the toilet body 10 from the rear part of the toilet body 10. The downstream end of the second water supply passage 23 is connected to the toilet drainage nozzle 17. That is, the second water supply path 23 communicates with the second water discharge port 16.
  • the first water supply path 22 is provided with a first on-off valve 25 that is an electromagnetic on-off valve.
  • the second water supply passage 23 is provided with a second on-off valve 26 that is an electromagnetic on-off valve in the middle.
  • the first on-off valve 25 and the second on-off valve 26 are controlled to open and close by a control device 27.
  • This toilet flushing device 20 is a flow control device that separately controls the flow of washing water in the first water supply channel 22 and the second water supply channel 23 by the first on-off valve 25, the second on-off valve 26, and the control device 27. It is composed.
  • the first on-off valve 25 and the second on-off valve 26 require time for the movement of the valve body when opening and closing. Therefore, the washing water flowing through the first water supply path 22 when the first opening / closing valve 25 is opened and the washing water flowing through the second water supply path 23 when the second opening / closing valve 26 is opened have a maximum flow rate. Gradually increase until Further, the flow rate of the washing water flowing through the first water supply path 22 when the first on-off valve 25 is closed and the washing water flowing through the second water supply path 23 when the second on-off valve 26 is closed are zero. It gradually decreases until
  • the toilet bowl cleaning device 20 executes toilet bowl cleaning when a user of a flush toilet bowl operates a cleaning button (not shown). At this time, the first on-off valve 25 and the second on-off valve 26 are driven to open and close based on a control signal from the control device 27 as shown in FIG.
  • the toilet bowl cleaning device 20 When the toilet bowl cleaning is executed, the toilet bowl cleaning device 20 first opens the first on-off valve 25 at time T1 (at the start of toilet bowl cleaning). Then, the toilet bowl washing
  • the wash water flows out from the first water outlet 15 along the rim water passage 13 via the first water supply path 22, and flows down along the surface of the toilet bowl portion 11 to pass the stool. It flows into the lower part of the pot part 11.
  • the flow rate of the wash water flowing through the first water supply path 22 gradually increases from the time T1 and reaches the maximum flow rate Q1. Then, as shown to FIG. 4 (A), the water level in the toilet bowl part 11 rises.
  • the toilet bowl cleaning device 20 drives the first on-off valve 25 to close at time T2. Then, as shown in FIG. 3, the flow rate of the wash water flowing through the first water supply path 22 (wash water discharged from the first water discharge port 15) gradually decreases from the time point T2 to zero after the time point T3. Become. Thus, the toilet bowl washing
  • the toilet bowl cleaning device 20 drives the second on-off valve 26 to open at time T3 after time T2. Then, the toilet bowl washing
  • the wash water flows downstream from the second water discharge port 16 of the toilet drainage nozzle 17 through the second water supply channel 23 along the ascending flow path 12B of the toilet drainage channel 12. To the side. At this time, the wash water flowing through the second water supply passage 23 (wash water discharged from the second water discharge port 16) gradually increases in flow rate from time T3 to reach the maximum flow rate Q2, as shown in FIG.
  • the toilet flushing device 20 executes the first blow water discharge
  • the washing water and filth in the toilet bowl 11 are conveyed to the downstream side of the toilet drainage channel 12 by the momentum of the water discharged from the second water discharge port 16.
  • the so-called toilet bowl cleaning device 20 performs jet cleaning.
  • the first blow water discharge (during jet cleaning)
  • FIG. 4B the water level in the toilet bowl 11 is lowered and the inflow port 12A of the toilet drainage channel 12 is exposed.
  • the water level in the toilet bowl 11 does not rise at the lowest water level.
  • the odor in the toilet drainage channel 12 is also pushed downstream by the wash water discharged from the second water discharge port 16 and does not flow backward to the toilet bowl 11 side.
  • the toilet bowl cleaning device 20 drives the first opening / closing valve 25 to open at time T4 after time T3. Then, the toilet bowl washing
  • the wash water flows out from the first water outlet 15 along the rim water passage 13 via the first water supply path 22, and flows down along the surface of the toilet bowl portion 11 to pass the stool. It flows into the lower part of the pot part 11.
  • the flow rate of the wash water flowing through the first water supply path 22 gradually increases from the time point T4 and reaches the maximum flow rate Q1.
  • the toilet bowl cleaning device 20 drives the second on-off valve 26 to be closed at time T5 after time T4. Then, as shown in FIG. 3, the flow rate of the wash water flowing through the second water supply passage 23 (wash water discharged from the second water discharge port 16) gradually decreases from the time point T5. At time T6 before the flow rate of the cleaning water flowing through the second water supply passage 23 becomes zero, the toilet bowl cleaning device 20 drives the second opening / closing valve 26 to open. Accordingly, the flow rate of the wash water flowing through the second water supply passage 23 (wash water discharged from the second water discharge port 16) gradually increases from the time point T6.
  • the toilet flushing device 20 drives the second on-off valve 26 to be closed.
  • the flow rate of the wash water flowing through the second water supply passage 23 gradually decreases from time T7 to zero.
  • the toilet bowl cleaning device 20 once reduces the flow rate of the cleaning water flowing through the second water supply passage 23 (the cleaning water discharged from the second water discharge port 16) at the time T5 to T6, and then again. From time T6 to time T7, second blow water discharge for increasing the flow rate of the wash water flowing through the second water supply path 23 (wash water discharged from the second water discharge port 16) is executed.
  • cleaning apparatus 20 is the washing water which flows through the 2nd water supply path 23 (washing water discharged from the 2nd spout 16) at the time T6 after the water level in the toilet bowl part 11 begins to rise. To increase the flow rate of the second blow water discharge.
  • the flow rate Q3 at the time T7 at which the flow rate of the wash water flowing through the second water supply passage 23 becomes maximum when the second blow water discharge is executed is the wash water flowing through the second water supply passage 23 when the first blow water discharge is executed. Less than the maximum flow rate Q2. For this reason, the toilet bowl washing
  • the toilet bowl cleaning device 20 can satisfactorily wash the toilet bowl and prevent odor from being drawn into the toilet room from the toilet bowl drainage channel 12 through the toilet bowl 11.
  • cleaning apparatus 20 closes the 1st on-off valve 25 in T8 time after the flow volume of the wash water (wash water discharged from the 2nd water discharge port 16) which flows through the 2nd water supply path 23 becomes zero. Valve driven. Then, as shown in FIG. 3, the flow rate of the wash water flowing through the first water supply path 22 (wash water discharged from the first water discharge port 15) gradually decreases from time T8 to zero. As a result, as shown in FIG. 4 (E), the wash water flows down along the surface of the toilet bowl 11 from the first water supply path 22 through the first water discharge port 15, and the water level in the toilet bowl 11 increases. Then, a water seal part is formed, and toilet cleaning is finished. And the toilet bowl washing
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the first on-off valve before the second on-off valve is driven to open to perform the first blow water discharge, the first on-off valve is driven to open and the bowl cleaning is executed. Instead, the second on-off valve may be driven to open to execute the first blow water discharge.
  • the flow control device that separately controls the flow of the cleaning water in the first water supply channel and the second water supply channel is configured by the first on-off valve, the second on-off valve, and the control device.
  • the flow control device may be configured by providing a switching valve at a portion where the first on-off valve and the second on-off valve branch from the water supply channel.
  • the flow rate in the second blow water discharge is made smaller than the maximum flow rate in the first blow water discharge by shortening the valve opening time of the second open / close valve. The flow rate may be controlled by having it.

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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)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

L'invention concerne un appareil de nettoyage de toilettes qui rend possible de nettoyer favorablement des toilettes et d'empêcher une odeur de s'échapper d'une pièce de toilettes, par l'intermédiaire d'une cuvette de toilette, à partir d'une voie de drainage de toilettes. Un appareil de nettoyage de toilettes comprend un premier passage d'alimentation en eau (22) communiquant avec un premier orifice d'éjection d'eau (15), un second passage d'alimentation en eau (23) communiquant avec un second orifice d'éjection d'eau (16) et un dispositif de commande d'écoulement conçu pour commander l'écoulement de l'eau de nettoyage dans le premier passage d'alimentation en eau (22) et le second passage d'alimentation en eau (23). Le dispositif de commande d'écoulement : exécute une première éjection d'eau de purge pour éjecter l'eau de nettoyage à partir du second orifice d'éjection d'eau (16) et transporter les saletés et analogues dans une direction en aval d'une voie de drainage de toilettes (12) ; exécute une éjection d'eau de purge dans laquelle l'eau de nettoyage qui a été éjectée à partir du premier orifice d'éjection d'eau (15) lors de la première éjection d'eau de purge s'écoule dans une section inférieure d'une cuvette de toilette (11) ; et, une fois que le débit d'eau de nettoyage s'écoulant à travers le second passage d'alimentation en eau (23) chute, exécute une seconde éjection d'eau de purge pour augmenter à nouveau le débit et pousser l'odeur à l'intérieur de la voie de drainage de toilettes (12) dans la direction en aval à l'aide de l'eau de nettoyage éjectée à partir du second orifice d'éjection d'eau (16), à la suite de quoi l'éjection d'eau de purge est achevée.
PCT/JP2013/054768 2012-03-30 2013-02-25 Appareil de nettoyage de toilettes Ceased WO2013145999A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-080668 2012-03-30
JP2012080668A JP6006960B2 (ja) 2012-03-30 2012-03-30 便器洗浄装置

Publications (1)

Publication Number Publication Date
WO2013145999A1 true WO2013145999A1 (fr) 2013-10-03

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Application Number Title Priority Date Filing Date
PCT/JP2013/054768 Ceased WO2013145999A1 (fr) 2012-03-30 2013-02-25 Appareil de nettoyage de toilettes

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JP (1) JP6006960B2 (fr)
TW (1) TW201344014A (fr)
WO (1) WO2013145999A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015061830A1 (fr) * 2013-10-29 2015-05-07 Huynh Quang Le Système de toilettes à économie d'eau
CN107109833A (zh) * 2014-10-24 2017-08-29 德博拉·希拉·哈里斯 冲水马桶
WO2024144531A1 (fr) * 2022-12-27 2024-07-04 Eczacibasi Yapi Gerecleri Sanayi Ve Ticaret Anonim Sirketi Système de chasse d'eau doté d'une sortie d'eau permettant l'élimination de déchets à l'intérieur de toilettes et toilettes appropriées pour une utilisation avec ledit système de chasse d'eau

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112523315B (zh) * 2020-11-27 2025-07-18 厦门豪帝智能家居科技有限公司 一种坐便器结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028757A (ja) * 2004-07-12 2006-02-02 Toto Ltd 水道直圧式大便器
JP2010156201A (ja) * 2006-12-28 2010-07-15 Toto Ltd 水洗大便器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006028757A (ja) * 2004-07-12 2006-02-02 Toto Ltd 水道直圧式大便器
JP2010156201A (ja) * 2006-12-28 2010-07-15 Toto Ltd 水洗大便器

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015061830A1 (fr) * 2013-10-29 2015-05-07 Huynh Quang Le Système de toilettes à économie d'eau
US10072408B2 (en) 2013-10-29 2018-09-11 Quang Le HUYNH Water saving toilet system
CN107109833A (zh) * 2014-10-24 2017-08-29 德博拉·希拉·哈里斯 冲水马桶
EP3209835A4 (fr) * 2014-10-24 2017-12-27 Harris, Deborah Sheila Toilettes à chasse d'eau
US10352027B2 (en) 2014-10-24 2019-07-16 Deborah Sheila HARRIS Flushing toilet
CN107109833B (zh) * 2014-10-24 2022-06-10 德博拉·希拉·哈里斯 冲水马桶
WO2024144531A1 (fr) * 2022-12-27 2024-07-04 Eczacibasi Yapi Gerecleri Sanayi Ve Ticaret Anonim Sirketi Système de chasse d'eau doté d'une sortie d'eau permettant l'élimination de déchets à l'intérieur de toilettes et toilettes appropriées pour une utilisation avec ledit système de chasse d'eau

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TW201344014A (zh) 2013-11-01
JP2013209836A (ja) 2013-10-10
JP6006960B2 (ja) 2016-10-12

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