CN109138071A - A kind of environment-friendly water-saving bathroom accessory system - Google Patents

A kind of environment-friendly water-saving bathroom accessory system Download PDF

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Publication number
CN109138071A
CN109138071A CN201811043224.5A CN201811043224A CN109138071A CN 109138071 A CN109138071 A CN 109138071A CN 201811043224 A CN201811043224 A CN 201811043224A CN 109138071 A CN109138071 A CN 109138071A
Authority
CN
China
Prior art keywords
water
water tank
connecting tube
spare
closestool
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.)
Pending
Application number
CN201811043224.5A
Other languages
Chinese (zh)
Inventor
李泽
李进
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 CN201811043224.5A priority Critical patent/CN109138071A/en
Publication of CN109138071A publication Critical patent/CN109138071A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/18—Sinks, whether or not connected to the waste-pipe
    • E03C1/182—Sinks, whether or not connected to the waste-pipe connected to the waste-pipe
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • E03C1/1222—Arrangements of devices in domestic waste water pipe-line systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/24—Overflow devices for basins or baths
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
    • E03D1/003—Cisterns in combination with wash-basins, urinals, or the like
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • E03B1/041—Greywater supply systems
    • E03B2001/045—Greywater supply systems using household water

Abstract

The invention discloses a kind of environment-friendly water-saving bathroom accessory systems, it is characterized by comprising bathing platforms, closestool and connecting tube, the bathing platform is connected by connecting tube with closestool, the bathing platform is by washbasin, spare water tank and interlayer runner composition, the washbasin is equipped with the discharge outlet and overflow port of side discharge structure design, the position of the overflow port is higher than discharge outlet, the discharge outlet is connected to interlayer runner, the overflow port is connected to spare water tank, the interlayer runner is connected to spare water tank, the spare water tank is equipped with the water outlet being connected with connecting tube, the closestool is made of toilet seat and water tank, the water tank is equipped with the water inlet being connected with connecting tube, flush button and the sewage draining exit being connected with toilet seat.The present invention has the advantage that the processing of domestic household effluent can be effectively utilized, the cyclic utilization rate of water is improved, achievees the purpose that water conservation, be further reduced the cost of sewage treatment plant while decreasing the expenditure of household water.

Description

A kind of environment-friendly water-saving bathroom accessory system
Technical field
The present invention relates to environment-friendly water-saving technical field, in particular to a kind of environment-friendly water-saving bathroom accessory systems.
Background technique
Our clothing, food, lodging and transportion -- basic necessities of life all be unable to do without water resource, especially freshwater resources, due to the tap water pipeline in China Using single-pipeline, so the waste of unavoidable fresh water, such as our a series of clean water wave such as closestool, mop pool Take, we, I believe that many people are first to put meeting water, wait the hot water circuit in water heaters to come when washing one's face in winter When just start to wash, those cold water have all endlessly flowed in sewer, and there are many waste same in this way, therefore, Yi Zhonghuan Protect water-saving bath system function admirable and low-cost Novel bathroom is studied.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the above technical problem, a kind of function admirable is provided and low-cost Environment-friendly water-saving bathroom accessory system.
In order to solve the above technical problems, technical solution provided by the invention is a kind of environment-friendly water-saving bathroom accessory system, feature Be: including bathing platform, closestool and connecting tube, the bathing platform is connected by connecting tube with closestool, the bathing platform by washbasin, Spare water tank and interlayer runner composition, the washbasin is equipped with the discharge outlet and overflow port of side discharge structure design, described to overflow The position of head piece is higher than discharge outlet, and the discharge outlet is connected to interlayer runner, and the overflow port is connected to spare water tank, described Interlayer runner is connected to spare water tank, and the spare water tank is equipped with the water outlet being connected with connecting tube, the closestool by Toilet seat and water tank composition, the water tank are equipped with the water inlet being connected with connecting tube, flush button and are connected with toilet seat Sewage draining exit is equipped with baffle inside the water tank, is equipped with visible scale window outside the water tank, the connecting tube be equipped with close into Check-valves at the mouth of a river and the piping filter close to water outlet, the tank top are equipped with the transparent sight for observing water quality Examine window.
Preferably, the water outlet is set to spare water tank bottom end.
Preferably, the water inlet is set to closestool top.
Preferably, the visible scale window is made of transparent glass material.
Preferably, the water outlet and connecting tube junction are equipped with sealing stink-insulating stopper.
The invention has the following advantages over the prior art: the processing of domestic household effluent can be effectively utilized, improve The cyclic utilization rate of water, achievees the purpose that water conservation, is further reduced the cost of sewage treatment plant while decreasing family With the expenditure of water.
Detailed description of the invention
Fig. 1 is a kind of environment-friendly water-saving bathroom accessory system structural schematic diagram of the present invention.
It is as shown in the figure: 1, bathing platform, 2, closestool, 3, connecting tube, 4, washbasin, 5, spare water tank, 6, spare water tank, 7, Discharge outlet, 8, overflow port, 9, water outlet, 10, toilet seat, 11, water tank, 12, water inlet, 13, flush button, 14, sewage draining exit, 15, baffle, 16, visible scale window, 17, check-valves, 18, piping filter, 19, transparent windows.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
In conjunction with attached drawing, a kind of environment-friendly water-saving bathroom accessory system, it is characterised in that: including bathing platform 1, closestool 2 and connecting tube 3, The bathing platform 1 is connected by connecting tube 3 with closestool 2, and the bathing platform 1 is by washbasin 4, spare water tank 5 and 6 groups of interlayer runner At the washbasin 4 is equipped with the discharge outlet 7 and overflow port 8 of side discharge structure design, and the position of the overflow port 8 is higher than draining Mouth 7, the discharge outlet 7 are connected to interlayer runner 6, and the overflow port 8 is connected to spare water tank 5, and the interlayer runner 6 is connected to In spare water tank 5, the spare water tank 5 is equipped with the water outlet 9 being connected with connecting tube 3, and the closestool 2 is by toilet seat 10 With water tank 11 form, the water tank 11 be equipped be connected with connecting tube 3 water inlet 12, flush button 13 and with 10 phase of toilet seat Sewage draining exit 14 even is equipped with baffle 15 inside the water tank 11, is equipped with visible scale window 16, the connection outside the water tank 11 Pipe 3 is equipped with the check-valves 17 at water inlet 12 and the piping filter 18 at water outlet 9,11 top of water tank Equipped with the transparent windows 19 for observing water quality.
The water outlet 9 is set to spare 5 bottom end of water tank.
The water inlet 12 is set to 2 top of closestool.
The visible scale window 16 is made of transparent glass material.
The water outlet 9 is equipped with sealing stink-insulating stopper with 3 junction of connecting tube.
Shape and size of the invention can be adjusted according to the size in space, but internal structure and principle are constant, by washbasin Discharge outlet is changed to side row by traditional following formula draining, enters in washbasin platform interlayer runner, the angle and its construction meeting of interlayer It changes with present conventional construction, then in interlayer or spare water storage device water passes through check-valves, pipe fitting and its horse Bucket or squat toilet water tank be connected, enable its flow into the water tank of closestool, the water tank top of closestool with its spare water storage device bottom end It is connected, does not overflow its closestool water source using the principle of atm difference.It thus will use what waste water used to rinse us A series of equipment not needed with fresh water such as closestool.Piping filter it is stifled can to avoid water pipe with the impurity in filtered wastewater Plug is equipped with sealing stink-insulating stopper, prevents leak and stink because bathtub is directly connected with closestool.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., is all included in the scope of protection of the present invention.

Claims (5)

1. a kind of environment-friendly water-saving bathroom accessory system, it is characterised in that: described to wash including bathing platform (1), closestool (2) and connecting tube (3) Bath platform (1) is connected by connecting tube (3) with closestool (2), and the bathing platform (1) is by washbasin (4), spare water tank (5) and interlayer Runner (6) composition, the washbasin (4) are equipped with the discharge outlet (7) and overflow port (8) of the design of side discharge structure, the overflow port (8) position is higher than discharge outlet (7), and the discharge outlet (7) is connected to interlayer runner (6), and the overflow port (8) is connected to spare Water tank (5), the interlayer runner (6) are connected to spare water tank (5), and the spare water tank (5) is equipped with and connecting tube (3) connected water outlet (9), the closestool (2) are made of toilet seat (10) and water tank (11), the water tank (11) equipped with Connecting tube (3) connected water inlet (12), flush button (13) and the sewage draining exit (14) being connected with toilet seat (10), the water tank (11) internal to be equipped with baffle (15), visible scale window (16) are equipped with outside the water tank (11), the connecting tube (3) is equipped with and leans on Check-valves (17) at nearly water inlet (12) and the piping filter (18) at water outlet (9), water tank (11) top Equipped with the transparent windows (19) for observing water quality.
2. a kind of environment-friendly water-saving bathroom accessory system according to claim 1, it is characterised in that: the water outlet (9) is set to standby With water tank (5) bottom end.
3. a kind of environment-friendly water-saving bathroom accessory system according to claim 1, it is characterised in that: the water inlet (12) is set to horse Bucket (2) top.
4. a kind of environment-friendly water-saving bathroom accessory system according to claim 1, it is characterised in that: the visible scale window (16) by Transparent glass material is made.
5. a kind of environment-friendly water-saving bathroom accessory system according to claim 1, it is characterised in that: the water outlet (9) with connect It manages (3) junction and is equipped with sealing stink-insulating stopper.
CN201811043224.5A 2018-09-07 2018-09-07 A kind of environment-friendly water-saving bathroom accessory system Pending CN109138071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811043224.5A CN109138071A (en) 2018-09-07 2018-09-07 A kind of environment-friendly water-saving bathroom accessory system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811043224.5A CN109138071A (en) 2018-09-07 2018-09-07 A kind of environment-friendly water-saving bathroom accessory system

Publications (1)

Publication Number Publication Date
CN109138071A true CN109138071A (en) 2019-01-04

Family

ID=64823679

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811043224.5A Pending CN109138071A (en) 2018-09-07 2018-09-07 A kind of environment-friendly water-saving bathroom accessory system

Country Status (1)

Country Link
CN (1) CN109138071A (en)

Citations (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2138153Y (en) * 1992-08-13 1993-07-14 王晓龙 Easily cleaning water saving sink
CN2428529Y (en) * 2000-03-14 2001-05-02 广东柏森经典洁具有限公司 Stainless steel washbasin
TW525644U (en) * 2002-07-01 2003-03-21 Tai Chia Lin Entpr Co Ltd A drain structure of a double-layer wash-basin
CN2575168Y (en) * 2002-10-31 2003-09-24 孙小亮 Deodorising antiplugging floor drain
CN1446990A (en) * 2002-03-27 2003-10-08 吴佳梁 Environmental protection and water saving type water use system in toilet and water saving type janitorial supplies
CN2605312Y (en) * 2003-01-15 2004-03-03 郭万山 Dual-body water closet flushed by secondary water from water-storing tank of wash basin
CN2659993Y (en) * 2003-12-03 2004-12-01 孙小亮 Device able to freely use small amount of clean water or secondary flushing toilet bowl
CN2687188Y (en) * 2004-02-05 2005-03-23 沈寅仁 Combined water-saving sanitary utensil
CN2725381Y (en) * 2004-07-20 2005-09-14 达正新 Waste water utilization device
CN2742044Y (en) * 2004-09-04 2005-11-23 张明文 Water saving device for flushing toiler
WO2006001577A1 (en) * 2004-03-20 2006-01-05 Mool Sarang Co., Ltd Energy saving toilet bowl system recycling wash water
CN2818580Y (en) * 2005-08-05 2006-09-20 陈放青 Pillar-style washbasin
CN2903203Y (en) * 2006-01-16 2007-05-23 连国保 Household water saving apparatus
CN2908626Y (en) * 2006-05-16 2007-06-06 刘强 Water-saving toilet
CN201010944Y (en) * 2007-01-31 2008-01-23 丁亚见 Wastewater stored water-saving basin
CN201010945Y (en) * 2007-01-29 2008-01-23 蔡琳 Domestic wastewater recycled water economizer
CN101191342A (en) * 2006-11-20 2008-06-04 张广军 Water-saving system device for toilet
CN201082973Y (en) * 2007-03-19 2008-07-09 张国光 Water-saving device by using waste water to washing toilet seat
CN201172846Y (en) * 2008-01-11 2008-12-31 崔文安 Secondary utilization device for domestic water
CN201310124Y (en) * 2008-10-31 2009-09-16 宋传华 Water-saving device for economical and practical flushing toilet
CN201447741U (en) * 2009-03-23 2010-05-05 陆燊 Water-saving closestool for sewage utilization
CN201526070U (en) * 2009-10-28 2010-07-14 林治森 Water-saving stainless steel wash basin with water-storing tank and water-saving pedestal pan
CN201695463U (en) * 2010-06-11 2011-01-05 海拉提·木华太 Washbasin water-saving device
CN201695457U (en) * 2010-04-28 2011-01-05 朱羽嵩 Device for recycling domestic water
RU2011103394A (en) * 2011-01-31 2011-04-27 Александр Тихонович Зиньковский (RU) METHOD FOR USING A TOILET AND BATHROOM FOR ITS IMPLEMENTATION
CN201915457U (en) * 2011-01-07 2011-08-03 彭世雄 Water-saving basin
CN202000412U (en) * 2010-11-04 2011-10-05 张茂兴 Multifunctional water economizer
CN202108099U (en) * 2011-06-10 2012-01-11 奚智群 Water-saving type closet
CN202227414U (en) * 2011-09-20 2012-05-23 艾克白尔·依明 Water-saving drainage system
CN202882050U (en) * 2012-11-02 2013-04-17 洛阳市技改建安工程有限公司 Domestic water-saving device
CN203200831U (en) * 2012-02-03 2013-09-18 周桂宽 Bath cabinet type household water-saving device
CN203270698U (en) * 2013-04-19 2013-11-06 张璐千 Domestic water recycling device
CN203866913U (en) * 2014-04-04 2014-10-08 西南石油大学 Water-saving device of reusing life waste water
CN204225231U (en) * 2014-09-26 2015-03-25 陈勇军 A kind of energy-saving washing rushes integrated water system
CN204875956U (en) * 2015-09-02 2015-12-16 傅颖 Home -use water -saving toilet system
CN205100309U (en) * 2015-11-13 2016-03-23 孔昭荣 Toilet bowl bath water saving system
CN205224201U (en) * 2015-12-19 2016-05-11 长安大学 Water -saving closestool
CN205369412U (en) * 2016-03-02 2016-07-06 李玉廷 Domestic water -saving device
CN205475513U (en) * 2016-02-04 2016-08-17 延安大学 Domestic wastewater reutilization device
CN205591315U (en) * 2016-04-27 2016-09-21 皖西学院 Novel water -saving toilet
US20170241117A1 (en) * 2016-02-23 2017-08-24 Kim Gavin Water disposable system using unwanted water
CN206667410U (en) * 2017-03-28 2017-11-24 湖北工业大学 A kind of closestool water-saving device
CN107740477A (en) * 2017-09-25 2018-02-27 南京律智诚专利技术开发有限公司 A kind of Intelligent double-layer closestool
CN207176800U (en) * 2017-06-06 2018-04-03 佛山市澳斯达卫浴实业有限公司 One kind can water-saving bathroom accessory system
US20180106028A1 (en) * 2016-10-19 2018-04-19 Kim Gavin Water disposable system using unwanted water

Patent Citations (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2138153Y (en) * 1992-08-13 1993-07-14 王晓龙 Easily cleaning water saving sink
CN2428529Y (en) * 2000-03-14 2001-05-02 广东柏森经典洁具有限公司 Stainless steel washbasin
CN1446990A (en) * 2002-03-27 2003-10-08 吴佳梁 Environmental protection and water saving type water use system in toilet and water saving type janitorial supplies
TW525644U (en) * 2002-07-01 2003-03-21 Tai Chia Lin Entpr Co Ltd A drain structure of a double-layer wash-basin
CN2575168Y (en) * 2002-10-31 2003-09-24 孙小亮 Deodorising antiplugging floor drain
CN2605312Y (en) * 2003-01-15 2004-03-03 郭万山 Dual-body water closet flushed by secondary water from water-storing tank of wash basin
CN2659993Y (en) * 2003-12-03 2004-12-01 孙小亮 Device able to freely use small amount of clean water or secondary flushing toilet bowl
CN2687188Y (en) * 2004-02-05 2005-03-23 沈寅仁 Combined water-saving sanitary utensil
WO2006001577A1 (en) * 2004-03-20 2006-01-05 Mool Sarang Co., Ltd Energy saving toilet bowl system recycling wash water
CN2725381Y (en) * 2004-07-20 2005-09-14 达正新 Waste water utilization device
CN2742044Y (en) * 2004-09-04 2005-11-23 张明文 Water saving device for flushing toiler
CN2818580Y (en) * 2005-08-05 2006-09-20 陈放青 Pillar-style washbasin
CN2903203Y (en) * 2006-01-16 2007-05-23 连国保 Household water saving apparatus
CN2908626Y (en) * 2006-05-16 2007-06-06 刘强 Water-saving toilet
CN101191342A (en) * 2006-11-20 2008-06-04 张广军 Water-saving system device for toilet
CN201010945Y (en) * 2007-01-29 2008-01-23 蔡琳 Domestic wastewater recycled water economizer
CN201010944Y (en) * 2007-01-31 2008-01-23 丁亚见 Wastewater stored water-saving basin
CN201082973Y (en) * 2007-03-19 2008-07-09 张国光 Water-saving device by using waste water to washing toilet seat
CN201172846Y (en) * 2008-01-11 2008-12-31 崔文安 Secondary utilization device for domestic water
CN201310124Y (en) * 2008-10-31 2009-09-16 宋传华 Water-saving device for economical and practical flushing toilet
CN201447741U (en) * 2009-03-23 2010-05-05 陆燊 Water-saving closestool for sewage utilization
CN201526070U (en) * 2009-10-28 2010-07-14 林治森 Water-saving stainless steel wash basin with water-storing tank and water-saving pedestal pan
CN201695457U (en) * 2010-04-28 2011-01-05 朱羽嵩 Device for recycling domestic water
CN201695463U (en) * 2010-06-11 2011-01-05 海拉提·木华太 Washbasin water-saving device
CN202000412U (en) * 2010-11-04 2011-10-05 张茂兴 Multifunctional water economizer
CN201915457U (en) * 2011-01-07 2011-08-03 彭世雄 Water-saving basin
RU2011103394A (en) * 2011-01-31 2011-04-27 Александр Тихонович Зиньковский (RU) METHOD FOR USING A TOILET AND BATHROOM FOR ITS IMPLEMENTATION
CN202108099U (en) * 2011-06-10 2012-01-11 奚智群 Water-saving type closet
CN202227414U (en) * 2011-09-20 2012-05-23 艾克白尔·依明 Water-saving drainage system
CN203200831U (en) * 2012-02-03 2013-09-18 周桂宽 Bath cabinet type household water-saving device
CN202882050U (en) * 2012-11-02 2013-04-17 洛阳市技改建安工程有限公司 Domestic water-saving device
CN203270698U (en) * 2013-04-19 2013-11-06 张璐千 Domestic water recycling device
CN203866913U (en) * 2014-04-04 2014-10-08 西南石油大学 Water-saving device of reusing life waste water
CN204225231U (en) * 2014-09-26 2015-03-25 陈勇军 A kind of energy-saving washing rushes integrated water system
CN204875956U (en) * 2015-09-02 2015-12-16 傅颖 Home -use water -saving toilet system
CN205100309U (en) * 2015-11-13 2016-03-23 孔昭荣 Toilet bowl bath water saving system
CN205224201U (en) * 2015-12-19 2016-05-11 长安大学 Water -saving closestool
CN205475513U (en) * 2016-02-04 2016-08-17 延安大学 Domestic wastewater reutilization device
US20170241117A1 (en) * 2016-02-23 2017-08-24 Kim Gavin Water disposable system using unwanted water
CN205369412U (en) * 2016-03-02 2016-07-06 李玉廷 Domestic water -saving device
CN205591315U (en) * 2016-04-27 2016-09-21 皖西学院 Novel water -saving toilet
US20180106028A1 (en) * 2016-10-19 2018-04-19 Kim Gavin Water disposable system using unwanted water
CN206667410U (en) * 2017-03-28 2017-11-24 湖北工业大学 A kind of closestool water-saving device
CN207176800U (en) * 2017-06-06 2018-04-03 佛山市澳斯达卫浴实业有限公司 One kind can water-saving bathroom accessory system
CN107740477A (en) * 2017-09-25 2018-02-27 南京律智诚专利技术开发有限公司 A kind of Intelligent double-layer closestool

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Application publication date: 20190104

RJ01 Rejection of invention patent application after publication