EP3677731A1 - Système de nettoyage de toilettes - Google Patents

Système de nettoyage de toilettes Download PDF

Info

Publication number
EP3677731A1
EP3677731A1 EP18849958.6A EP18849958A EP3677731A1 EP 3677731 A1 EP3677731 A1 EP 3677731A1 EP 18849958 A EP18849958 A EP 18849958A EP 3677731 A1 EP3677731 A1 EP 3677731A1
Authority
EP
European Patent Office
Prior art keywords
water supply
toilet
cleaning
supply channel
water
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.)
Granted
Application number
EP18849958.6A
Other languages
German (de)
English (en)
Other versions
EP3677731C0 (fr
EP3677731B1 (fr
EP3677731A4 (fr
Inventor
Yasunari Maeda
Naoki Shibata
Tomohiro Akita
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.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
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 Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of EP3677731A1 publication Critical patent/EP3677731A1/fr
Publication of EP3677731A4 publication Critical patent/EP3677731A4/fr
Application granted granted Critical
Publication of EP3677731C0 publication Critical patent/EP3677731C0/fr
Publication of EP3677731B1 publication Critical patent/EP3677731B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D13/00—Urinals ; Means for connecting the urinal to the flushing pipe and the wastepipe; Splashing shields for urinals
    • E03D13/005—Accessories specially adapted for urinals
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
    • E03D9/02—Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing

Definitions

  • the disclosure relates to a toilet cleaning system which supplies cleaning water to a toilet.
  • Patent Document 1 discloses a toilet device which is provided with a fine air bubble generator which supplies water together with fine air bubbles into a storage tank of a toilet and in which cleaning water containing fine air bubbles flows into the toilet when cleaning operation is executed.
  • PATENT DOCUMENT 1 Japanese Unexamined Patent Application Publication No. 2008-274615
  • the toilet device disclosed in Patent Document 1 mentioned above is able to be cleaned by cleaning water containing fine air bubbles.
  • the fine air bubbles contained in the cleaning water tend to decrease when the cleaning water flows down an inner surface of the toilet or flows on the way to a drainage channel such as a drainage trap, so that further improvement is desired in view of cleaning the drainage channel.
  • the present disclosure is proposed in view of the above circumstances, and an object thereof is to provide a toilet cleaning system capable of efficiently cleaning a drainage channel connected to a drainage portion of a toilet.
  • a toilet cleaning system includes a water supply channel which supplies cleaning water to a toilet, a bypass water supply channel which is branched from the water supply channel and is connected to a drainage channel connected to a drainage portion of the toilet, and an air bubble mixing portion which bubbles air and mixes the bubbled air into the cleaning water supplied to the bypass water supply channel.
  • the toilet cleaning system of one aspect of the present invention as constructed above is able to effectively clean the drainage channel connected to the drainage portion of the toilet.
  • FIG. 1 is a diagrammatic view of one example of a toilet cleaning system of the first embodiment.
  • a toilet cleaning system 1 has a water supply channel 6, 8 which supplies cleaning water to a toilet 2.
  • the toilet cleaning system 1 is configured such that cleaning water is supplied to a single toilet 2.
  • the toilet 2, which is a supply destination of cleaning water, is exemplified as a urinal for a standing user.
  • the toilet 2 has a bowl portion (bowl-like portion) 3, a water supply portion 4 connected to the water supply channel 6, 8, and a drainage portion 5 discharging urine and cleaning water.
  • the water supply portion 4 has a discharge portion such as a spreader which discharges cleaning water along an inner surface of the bowl portion 3.
  • the drainage portion 5 constitutes a trap portion in the shape of a bowl or in the shape of the letter P and is connected to a drainage channel 9.
  • the toilet 2 can be a so-called floor-type and vertically-long urinal which is installed on the floor, or a wall-type urinal which is installed so as to be hooked on a wall surface.
  • the toilet cleaning system 1 can include the toilet 2.
  • the toilet device can be constructed with the toilet 2 and the toilet cleaning system 1.
  • the toilet cleaning system 1 has a bypass water supply channel 10 which is branched from the water supply channel 6, 8 and is connected to the drainage channel 9 connected to the drainage portion 5 of the toilet 2.
  • the water supply channel on the upstream side (on the water supply source side) of a branch portion 10a from which the bypass water supply channel 10 is branched and connected is defined as an upstream side water supply channel 6, and the water supply channel on the downstream side (on the side of the toilet 2) of the branch portion 10a is defined as a downstream side water supply channel 8.
  • the bypass water supply channel 10 has a bypass valve 11 which opens or closes the bypass water supply channel 10 to supply or shut off cleaning water.
  • the bypass water supply channel 10 has a backflow prevention portion 12 such as a backflow prevention valve (check valve) which prevents backflow of cleaning water to the upstream side.
  • the backflow prevention portion 12 is provided on the downstream side (on the side of the drainage channel 9) of the bypass valve 11.
  • An end portion on the downstream side of the bypass water supply channel 10 is connected to a region which is relatively close to the drainage portion 5 of the drainage channel 9 which is in the shape of a horizontally installed pipe.
  • the end portion on the downstream side of the bypass water supply channel 10 can be connected to the end portion on an upstream side of a region of the drainage channel 9 provided so as to extend in the approximately horizontal direction.
  • the toilet cleaning system 1 has an air bubble mixing portion 13 which bubbles air and mixes the air bubbles into cleaning water supplied to the bypass water supply channel 10.
  • the air bubble mixing portion 13 is provided for the upstream side water supply channel 6 on the upstream side of the branch portion 10a from which the bypass water supply channel 10 is branched and connected and mixes the air bubble into cleaning water.
  • the air bubble mixing portion 13 can be configured to mix fine air bubbles of both or one of millimeter order or micrometer order.
  • the air bubble mixing portion 13 can be configured in such a manner that the void fraction (area rate of fine air bubbles contained per sectional area unit of fluid) of bubbled cleaning water mixed with fine air bubbles (cleaning water containing fine air bubbles) is from 5% to 40%, or more preferably from 10% to 30%.
  • the air bubble mixing portion 13 has a gas-liquid mixing portion 16 in the shape of a venturi pipe provided for the upstream side water supply channel 6 as a sudden pressure change portion and an air introduction portion 14 introducing air into the gas-liquid mixing portion 16.
  • the air introduction portion 14 can be constituted in such a manner that a tip end of a pipe is open to the atmosphere or that an on-ofF valve is provided in the middle of a pipe.
  • the air introduction portion 14 can be constituted such that gas including functional gas such as carbon dioxide gas or ozone gas is introduced into air.
  • a flow rate adjustment portion 15 capable of adjusting the flow rate of the air supplied to the gas-liquid mixing portion 16 is provided on the downstream side of the air introduction portion 14. The void fraction mentioned above can be adjusted by controlling the flow rate adjustment portion 15.
  • the gas-liquid mixing portion 16 has a constricted portion formed in the shape of a nozzle and air is introduced from the air introduction portion 14 by the ejector effect by negative pressure action of cleaning water discharged through the constricted portion.
  • the air bubbles are sheared and minutely divided by a sudden pressure change action when passing through a narrow diameter portion and a wide diameter portion of the gas-liquid mixing portion 16, and become fine air bubbles to be mixed in cleaning water.
  • the downstream side water supply channel 8 has a water supply valve 7 which opens and closes the downstream side water supply channel 8, and supplies and shuts off cleaning water.
  • the water supply valve 7 is provided on the downstream side of the gas-liquid mixing portion 16.
  • the upstream side water supply channel 6 can be communicated with a water pipe, which is a water supply source.
  • the water supply method of the toilet cleaning system 1 can be a direct water pressure type.
  • a three-way switching valve which functions as the water supply valve 7 and the bypass valve 11 can be provided for the branch portion 10a.
  • a drainage channel cleaning mode in which bubbled cleaning water is supplied to the bypass water supply channel 10 after the cleaning operation as mentioned above can be performed. Namely, when the cleaning operation is on, a drainage channel cleaning mode which supplies bubbled cleaning water to the drainage channel 9 can be executed after the toilet cleaning mode in which bubbled cleaning water is supplied to the bowl portion 3 of the toilet 2.
  • both of or one of the toilet cleaning mode and the drainage channel cleaning mode can be executed. Namely, when the toilet is not used for a relatively long time, the cleaning mode can be performed. Such a cleaning operation is performed by controlling each portion by a control unit which has a control circuit such as CPU and a storage unit and which is appropriately provided for the toilet cleaning system 1.
  • a control unit which has a control circuit such as CPU and a storage unit and which is appropriately provided for the toilet cleaning system 1.
  • bubbled cleaning water can also be supplied to the bowl portion 3 of the toilet 2. Namely, when the water supply valve 7 and the bypass valve 11 are open, bubbled cleaning water is branched at the branch portion 10a to be supplied into the bowl portion 3 of the toilet 2 via the downstream side water supply channel 8 and the drainage channel 9 via the bypass water supply pipe 10.
  • the drainage channel 9 connected to the drainage portion 5 of the toile 2 is effectively cleaned.
  • the toilet cleaning system 1 has the air bubble mixing portion 13 in which air is bubbled and mixed with cleaning water supplied to the bypass water supply channel 10. Therefore, bubbled cleaning water is directly supplied to the drainage channel 9 connected with the bypass water supply channel 10 without reaching the toilet 2. Namely, bubbled cleaning water is supplied to the drainage channel 9 without passing through the bowl portion 3 and the drainage portion 5.
  • air bubbles contained in the bubbled cleaning water reached the drainage channel 9 are inhibited from reducing.
  • dirt such as urine stone (calcium ion and bacteria) adhering to the inner surface of the drainage channel 9 is absorbed by the air bubbles contained in the bubbled cleaning water and is effectively removed, thereby effectively inhibiting accumulation of urine stone.
  • the air bubble mixing portion 13 is provided so as to mix air bubbles at the upstream side water supply channel 6 on the upstream side of the branch portion 10a from which the bypass water channel 10 is branched and connected. Therefore, bubbled cleaning water is also supplied to the toilet 2 and cleaning performance of the toilet 2 is improved.
  • this embodiment is constructed such that bubbled cleaning water is branched at the branch portion 10a and is simultaneously supplied to both of the toilet 2 and the bypass water supply channel 10. Therefore, compared with the embodiment in which bubbled cleaning water is selectively supplied to the toilet 2 and the bypass water supply channel 10, both of the bowl portion 3 of the toilet 2 and the drainage channel 9 are effectively cleaned.
  • FIG. 2 illustrates a diagrammatic system configuration of one example of a toilet cleaning system of the second embodiment.
  • the downstream water supply channel 8 is branched into a plurality of channels (three channels in the figure) and cleaning water is supplied to a plurality of toilets 2, 2, 2.
  • Branch pipes 8A, 8A, 8A of the downstream side water supply channel 8 are respectively connected to water supply portions 4, 4, 4 of the toilets 2, 2, 2.
  • the water supply valves 7, 7, 7 as mentioned above are respectively provided for the branch pipes 8A, 8A, 8A.
  • the discharge portions 5, 5, 5 of the toilets 2, 2, 2 are respectively connected with drainage pipes 9A, 9A, 9A connected to the drainage channel 9 which is in the shape of a horizontally installed pipe.
  • An end portion on the downstream side of the bypass water supply channel 10 is connected to a connection portion of the drainage channel 9 and the drainage pipe 9A connected to the toilet 2 on the most upstream side in the drainage direction of the drainage channel 9.
  • the end portion on the downstream side of the bypass water supply channel 10 is connected to an end portion on the upstream side of a region of the drainage channel 9 provided so as to extend in the approximately horizontal direction.
  • the backflow prevention portion 12 as mentioned above is provided at a region on the downstream side of the bypass water supply channel 10.
  • the bypass valve 11 as mentioned above is provided on the upstream side of the backflow prevention portion 12 of the bypass water supply channel 10.
  • an air bubble mixing portion 13A is provided so as to mix air bubbles at an upstream side water supply channel 19 on the upstream side of the branch portion 10a from which the bypass water channel 10 is branched and connected.
  • an end portion on the upstream side of the upstream side water supply channel 19 is connected to a water storage portion 18.
  • a water supply method of the toilet cleaning system 1A is a tank type (pump pressurization type), not a direct water pressure type.
  • Cleaning water is supplied to the water storage portion 18 from a water supply pipe 6A such as a water pipe.
  • the water storage portion 18 has a suitable level meter so as to store cleaning water at a predetermined level.
  • the air bubble mixing portion 13A is configured to generate bubbled cleaning water mixed with fine air bubbles in such a manner that cleaning water with air dissolved under pressure is depressurized.
  • fine air bubbles are mixed into cleaning water by shearing and breaking air bubbles by the pressurization of the sudden pressure change action as mentioned above.
  • the air bubble mixing portion 13A has an air introduction pipe 14A which introduces air and a pump 15A which sucks air introduced from the air introduction pipe 14A and sucks cleaning water in the water storage portion 18.
  • the air bubble mixing portion 13A has a dissolution tank 17 connected to a discharge side of the pump 15A, and the dissolution tank 17 has a gas-liquid mixing tank and a gas-liquid separation tank and dissolves air into cleaning water by pressurization of the pump 15A.
  • the air bubble mixing portion 13A has a pressure release portion 16A in the shape of a venturi pipe for releasing pressure on the downstream side of the dissolution tank 17.
  • the pump 15A is activated with the bypass valve 11 closed and the water supply valve 7 of the toilet 2 after cleaning operation is open, then bubbled cleaning water mixed with fine air bubbles is supplied to the bowl portion 3 of the toilet 2.
  • bubbled cleaning water can be directly supplied to the drainage channel 9 via the bypass water supply pipe 10.
  • bubbled cleaning water can be supplied only to the bypass water supply channel 10. Similar to the above, bubbled cleaning water can be simultaneously supplied to both of at least the bowl portion 3 of the toilet 2 and the bypass water supply channel 10.
  • the toilet cleaning system 1A of the embodiment as mentioned above has the approximately same effect as the first embodiment.
  • the drainage channel 9 connected to the drainage portions 5, 5, 5 of the toilets 2, 2, 2 is effectively cleaned.
  • Parts of the different configurations in the above-mentioned embodiments can be combined or exchanged with each other.
  • the above-mentioned components of the toilet cleaning systems 1, 1A in each embodiment are only examples and various modifications are possible.
  • the toilet 2 to be cleaned in the toilet cleaning systems 1, 1A is exemplified as a urinal; however, a squat-type or seat-type toilet can be used.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Epidemiology (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Detergent Compositions (AREA)
EP18849958.6A 2017-08-29 2018-08-22 Système de nettoyage de toilettes Active EP3677731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017163837A JP6775121B2 (ja) 2017-08-29 2017-08-29 便器洗浄システム
PCT/JP2018/030976 WO2019044622A1 (fr) 2017-08-29 2018-08-22 Système de nettoyage de toilettes

Publications (4)

Publication Number Publication Date
EP3677731A1 true EP3677731A1 (fr) 2020-07-08
EP3677731A4 EP3677731A4 (fr) 2020-09-16
EP3677731C0 EP3677731C0 (fr) 2023-10-04
EP3677731B1 EP3677731B1 (fr) 2023-10-04

Family

ID=65524951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18849958.6A Active EP3677731B1 (fr) 2017-08-29 2018-08-22 Système de nettoyage de toilettes

Country Status (5)

Country Link
EP (1) EP3677731B1 (fr)
JP (1) JP6775121B2 (fr)
CN (1) CN110998037A (fr)
ES (1) ES2966902T3 (fr)
WO (1) WO2019044622A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7229851B2 (ja) * 2019-05-27 2023-02-28 シャープ株式会社 動物用トイレ
JP6872740B2 (ja) 2019-06-27 2021-05-19 パナソニックＩｐマネジメント株式会社 洗浄装置、これを備えた洗浄システム及び同洗浄装置を用いた洗浄方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1162343A (zh) * 1994-08-19 1997-10-15 东陶机器株式会社 便器洗净方法和装置
TW272244B (fr) * 1994-08-19 1996-03-11 Toto Ltd
JP4792680B2 (ja) * 2000-09-08 2011-10-12 Ｔｏｔｏ株式会社 水洗便器の洗浄水吐出装置
KR101005476B1 (ko) * 2005-07-26 2011-01-05 파나소닉 전공 주식회사 수세 화장실 설비
JP2007077666A (ja) * 2005-09-14 2007-03-29 Toto Ltd 便器洗浄水生成装置及び便器洗浄システム
JP5276254B2 (ja) * 2006-02-23 2013-08-28 パナソニック株式会社 水洗便器装置
JP4099784B1 (ja) * 2006-12-25 2008-06-11 エコ・デベロプメント株式会社 小便器
JP2008274615A (ja) 2007-04-27 2008-11-13 Toto Ltd トイレ装置
JP6351267B2 (ja) * 2014-01-11 2018-07-04 共立製薬株式会社 小便器システム
JP2016098632A (ja) * 2014-11-26 2016-05-30 パナソニックＩｐマネジメント株式会社 便器装置

Also Published As

Publication number Publication date
WO2019044622A1 (fr) 2019-03-07
EP3677731C0 (fr) 2023-10-04
JP2019039267A (ja) 2019-03-14
CN110998037A (zh) 2020-04-10
ES2966902T3 (es) 2024-04-24
JP6775121B2 (ja) 2020-10-28
EP3677731B1 (fr) 2023-10-04
EP3677731A4 (fr) 2020-09-16

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