CN102330453A - Access apparatus of pipeline for anti-back overflow - Google Patents

Access apparatus of pipeline for anti-back overflow Download PDF

Info

Publication number
CN102330453A
CN102330453A CN201110145507A CN201110145507A CN102330453A CN 102330453 A CN102330453 A CN 102330453A CN 201110145507 A CN201110145507 A CN 201110145507A CN 201110145507 A CN201110145507 A CN 201110145507A CN 102330453 A CN102330453 A CN 102330453A
Authority
CN
China
Prior art keywords
water seal
tank
flashback tank
water
sewage
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
CN201110145507A
Other languages
Chinese (zh)
Other versions
CN102330453B (en
Inventor
王凤蕊
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 CN2011101455072A priority Critical patent/CN102330453B/en
Publication of CN102330453A publication Critical patent/CN102330453A/en
Application granted granted Critical
Publication of CN102330453B publication Critical patent/CN102330453B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sink And Installation For Waste Water (AREA)

Abstract

The invention provides an access apparatus of a pipeline for anti-back overflow. The apparatus which comprises a vertical tube connecting tube, a water seal tank, and a water seal and division hanger plate arranged in the water seal tank is characterized in that: the top of the water seal and division hanger plate is hinged to the inner side of the top tank wall of the water seal tank, the vertical tube connecting tube which is inserted through the water seal tank is provided with a water outlet, and a lowest part of the water outlet is not lower than the bottom of the water seal and division hanger plate; the bottom of the water seal and division hanger plate bears against the wall of the water seal tank, and the water seal and division hanger plate divides the water seal tank into two tanks which are not communicated; and the water outlet is arranged in one of the two tanks, and the wall of the other one of the two tanks is provided with a water inlet. The apparatus of the present invention has the advantages of scientific design, reliable performance, and self seal for anti-back overflow.

Description

Overflow-proof pipeline access device
Technical field
The present invention relates to a kind of building water supply and drainage device, specifically, related to a kind of overflow-proof pipeline access device.
Background technology
At present, there are problems in drainage system, and like seepage, back foul, noise etc., especially seepage, line clogging sewage return and overflows into the chamber, the back foul pollution problems is particularly outstanding; In order to overcome the above problems; Many technician are directed against above problem and have proposed different solutions: 1, in special single riser systems; Through the flowing water passage being set to form the hollow current at transverse tube and standpipe intersection, improve the ventilation capacity of soil stack, reduce the floor drain back foul; 2, adopt two standpipe modes, special-purpose ventilating pipe is set, reduce floor drain back foul problem; 3, adopt two standpipe self-loopa patterns, improve the standpipe exhaust capacity, reduce floor drain back foul problem; 4, in the single riser systems of special lengthening joint, enlarge, bring certain influence to interior decoration, and take the interior space because standpipe is local; Above technology all in various degree solution the floor drain problem, stop up sewage and do not return excessive problem but all have to solve.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The objective of the invention is the deficiency to prior art, thereby a kind of simple in structure, design science, easy to use, dependable performance are provided, can seal the overflow-proof pipeline access device of overflow-proof voluntarily.
To achieve these goals; The technical scheme that the present invention adopted is: a kind of overflow-proof pipeline access device, and it comprises standpipe tube connector, flashback tank and is arranged on the interior water seal of flashback tank cuts apart boatswain chair, wherein; The top and the said flashback tank top tank wall hinged inside of boatswain chair cut apart in said water seal; Said standpipe tube connector passes said flashback tank setting, and said standpipe tube connector is provided with outfall, and the lowest part of said outfall is not less than said water seal and cuts apart the boatswain chair bottom; When said water seal was cut apart boatswain chair bottom top and is located on the said flashback tank tank wall, said water seal was cut apart boatswain chair said flashback tank is divided into two mutual disconnected casings; Said outfall is arranged in one of them casing, and wherein the tank wall of another casing is provided with water inlet.
Based on above-mentioned, it comprises that also having hydrolock sewage enters the sewage drainage pipe of mouth and have the wastewater drainage pipe that waste water enters mouth, and said sewage drainage pipe is communicated with said standpipe tube connector, and said wastewater drainage pipe is communicated with said water inlet.
Based on above-mentioned, it also comprises the air pressure adjustment case, and said air pressure adjustment case is communicated with said sewage drainage pipe.
Based on above-mentioned, the top tank wall that is provided with the casing of water inlet is provided with the land drainage hole.
Based on above-mentioned, said sewage drainage Guan Yiduan passes said flashback tank sidewall and is communicated with said standpipe tube connector.
Based on above-mentioned, said sewage drainage Guan Yiduan passes said flashback tank top tank wall and is communicated with said standpipe tube connector.
Based on above-mentioned, said sewage drainage pipe is arranged on said flashback tank top.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, and specifically, this overflow-proof pipeline access device has the following advantages:
1, because wastewater drainage pipe directly is connected with flashback tank, formed the structure of the concentrated water-sealing stinking-proof in a family, effectively avoided one of them water seal inefficacy and cause the problem of indoor back foul;
2, the water of each discharge of wastewater point discharging; All pass through flashback tank and discharge, the water in the flashback tank has just improved frequency of replacement like this, is unfavorable for that the water evaporation in the flashback tank is dry; The washroom is prevented back foul and avoids water seal to evaporate and the secondary pollution of initiation to have better action;
3, the change of boatswain chair along with water (flow) direction cut apart in water seal, and in flashback tank, form two kinds of spatial relationships: a side positive flow of cutting apart boatswain chair from water seal when current is fashionable, and boatswain chair is cut apart in water seal and flashback tank constitutes sealing structure for water, prevents that the foul smell of pipeline from returning into indoor; The opposite side reverse flow of cutting apart boatswain chair from water seal when current is fashionable; Water seal is cut apart boatswain chair under the effect of reverse power; A side inwall of flashback tank is close in its lower end, flashback tank is divided into two confined spaces that can not be communicated with, promptly; Sewage in a confined space flows into flashback tank can't get into another confined space, thereby can effectively stop sewage or foul smell in the pipeline to return into indoor;
In case during the air pressure that generation pressure is bigger in 4 sewage conducts; Water seal will be lost efficacy; But under the effect of air pressure; Can make water seal cut apart the side inwall that flashback tank is close in the boatswain chair lower end, flashback tank is divided into two confined spaces that can not be communicated with, can solve effectively that the sewage conduct internal gas pressure is excessive to be caused water seal to lose efficacy and form the problem of back foul;
5, boatswain chair is cut apart in the water seal of this device, not only can play the water seal effect, and plays the effect of overflow-proof and back foul, and it has simple in structure, design science, easy to use, dependable performance, can seal the advantage of overflow-proof and back foul voluntarily.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
The specific embodiment
Through the specific embodiment, technical scheme of the present invention is done further detailed description below.
Embodiment 1
As shown in Figure 1; A kind of overflow-proof pipeline access device; It comprises standpipe tube connector 4, have hydrolock sewage enters mouthfuls 10 sewage drainage pipe 9, has that waste water enters mouthfuls 8 wastewater drainage pipe 7, air pressure adjustment case 11, flashback tank 1 and boatswain chair 6 is cut apart in the water seal that is arranged in the flashback tank 1; Wherein, the top and the said flashback tank 1 top tank wall hinged inside of boatswain chair 6 cut apart in said water seal, and said standpipe tube connector 4 passes said flashback tank 1 and is provided with; Said standpipe tube connector 4 is provided with outfall 5, and the lowest part of said outfall 5 is not less than that boatswain chair 6 bottoms are cut apart in said water seal so that flashback tank 1 forms water seal; When said water seal is cut apart boatswain chair 6 bottoms tops and is located on said flashback tank 1 tank wall; Said water seal is cut apart boatswain chair 6 said flashback tank is divided into two mutual disconnected casings; Said outfall 5 is positioned at one of them casing, and wherein the tank wall of another casing is provided with water inlet 2; Said sewage drainage pipe 9 one ends pass said flashback tank 1 sidewall and are communicated with said standpipe tube connector 4, and said wastewater drainage pipe 7 is communicated with said water inlet 2; Said air pressure adjustment case 11 is communicated with said sewage drainage pipe 9; The top tank wall that is provided with the casing of water inlet 2 is provided with land drainage hole 3.
Specifically, in case occur to stop up, pressure is bigger returns overflow sewage or foul smell and will pour in the flashback tank 1; Destroy the less water seal of flashback tank 1 internal pressure; And acting in opposition cuts apart boatswain chair 6 in said water seal, makes said water seal cut apart the top tank wall rotation of the top of boatswain chair 6 around said flashback tank 1, and then; To make said water seal cut apart boatswain chair 6 bottoms tightly pushes up and is located on said flashback tank 1 tank wall; At this moment, boatswain chair 6 is cut apart in said water seal can be divided into two parts with said flashback tank 1, and forms two mutual disconnected casings; In case occur stopping up; Under the effect of returning overflow sewage or foul smell, said water seal is cut apart boatswain chair 6 immediately with said water inlet 2 and said outfall 5 isolated opening, and can prevent effectively that sewage or foul smell from returning from water inlet 2 to overflow and go out; And the pressure that returns overflow sewage or foul smell is big more, and it is tight more that the two completely cuts off;
What pay particular attention to is: 1, based on the notion of water inlet 2, land drainage hole 3 and outfall 5, the lowest part that has implied said water inlet 2 and said land drainage hole 3 is not less than the lowest part of said outfall 5, otherwise this device can't draining; 2, the notion of cutting apart boatswain chair 6 based on water seal; Implied said water seal and cut apart the base plate that the bottom of boatswain chair 6 is higher than said flashback tank 1, and the two sides of boatswain chair 6 are cut apart in said water seal and corresponding with it said flashback tank 1 two sides tank wall is relatively-movable sealing relationship; 3, when said water seal is cut apart boatswain chair 6 bottoms tops and is located on said flashback tank 1 tank wall; Said water seal is cut apart boatswain chair 6 said flashback tank is divided into two mutual disconnected casings; Also can know by inference thus; The two sides of boatswain chair 6 are cut apart in said water seal and corresponding with it said flashback tank 1 two sides tank wall should be relatively-movable sealing relationship, and also can know by inference thus, and top and said flashback tank 1 top tank wall that boatswain chair 6 is cut apart in said water seal should be sealing relationship; That is, under the situation that does not occur stopping up, aforementioned structure should guarantee normal drainage of this device and water seal back foul effect.
During construction; Flashback tank is embedded in the floor hole to be provided, and makes waterproofing course, then; According to washroom utensil arrangement diagram; Assemble sewage drainage pipe and wastewater drainage pipe, and connect the air pressure adjustment case, sewage drainage pipe, wastewater drainage pipe are connected and sealing with the corresponding connector of flashback tank respectively at the end of sewage drainage pipe; This layer standpipe inserted socket on the standpipe tube connector, lower floor's standpipe is inserted socket under the standpipe tube connector, and sealing respectively; Then, utensil gutters such as wash basin, washing machine, shower, bathtub, mop pool are inserted waste water enter mouth, effluent discharge pipes such as toilet and urinal are connected sewage enter mouth, promptly accomplished the installation of drainage system.
During use; Excess surface water is 3 inflow flashback tanks 1 from the land drainage hole, and the waste water that each waste water interface is discharged flows into flashback tanks 1 from wastewater drainage pipe 7, and in flashback tank 1, forms water seal; When waste water water level to outfall 5 lower edges that flow into, waste water will be through outfall 5 inflow standpipe tube connectors 4; When line clogging, returning excessive sewage or foul smell can get in the flashback tanks 1, at this moment through outfall 5; The sewage or the foul smell that get in the flashback tank 1 produce pressure, promote water seal and cut apart the wallboard that boatswain chair 6 moved and be adjacent to flashback tank 1, make said water inlet 2, land drainage hole 3 and said outfall 5 isolated opening; And formation sealing relationship; That is, sewage in the sewage conduct or foul smell just can't discharge water joint sealings 1, thereby can prevent effectively that sewage or foul smell in the sewage conduct from returning excessive;
Get in the standpipe tube connector when sewage passes through the sewage drainage pipe, waste water produces air pressure fluctuation after flowing into the standpipe tube connector through wastewater drainage pipe in standpipe; When the air pressure section arrives lower floor pipeline access device place, in the sewage drainage pipe, will produce pressure, when pressure is malleation; Will gas be expressed to the air pressure adjustment case; Gas volume in the pipeline will enlarge, and pressure diminishes thereupon, reduces the influence of air pressure fluctuation to sewage row entrance; Under the effect of air pressure, water seal is cut apart boatswain chair 6 immediately with said water inlet 2 and said outfall 5 isolated opening, and is divided into two spaces that can not be communicated with, and stops air pressure to get into wastewater drainage pipe; When becoming negative pressure in the riser tube, the gas that is compressed in the air pressure adjustment case is released out, replenishes the gas in the pipeline, regulates negative pressure enters the saliva envelope to sewage influence thereby alleviate; This device especially is fit to high level and builds use.
Embodiment 2
1 of present embodiment and embodiment are different mainly to be: said sewage drainage Guan Yiduan passes said flashback tank top tank wall and is communicated with said standpipe tube connector, to adapt to different drainage patterns or discharge structure.
Embodiment 3
1 of present embodiment and embodiment are different mainly to be: said sewage drainage pipe is arranged on said flashback tank top, and promptly said sewage drainage Guan Yiduan directly is communicated with said standpipe tube connector, to adapt to different drainage patterns or discharge structure.
Embodiment 4
1 of present embodiment and embodiment are different mainly to be: this overflow-proof pipeline access device does not comprise the air pressure adjustment case that is communicated with said sewage drainage pipe; For multistory building, waste water or sewage from top to bottom, manifold pressure fluctuation is less relatively, can not adopt the air pressure adjustment case, to simplify this apparatus structure.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.

Claims (7)

1. overflow-proof pipeline access device; It is characterized in that: it comprises standpipe tube connector, flashback tank and is arranged on the interior water seal of flashback tank cuts apart boatswain chair; Wherein, the top and the said flashback tank top tank wall hinged inside of boatswain chair cut apart in said water seal, and said standpipe tube connector passes said flashback tank setting; Said standpipe tube connector is provided with outfall, and the lowest part of said outfall is not less than said water seal and cuts apart the boatswain chair bottom; When said water seal was cut apart boatswain chair bottom top and is located on the said flashback tank tank wall, said water seal was cut apart boatswain chair said flashback tank is divided into two mutual disconnected casings; Said outfall is arranged in one of them casing, and wherein the tank wall of another casing is provided with water inlet.
2. overflow-proof pipeline access device according to claim 1; It is characterized in that: it comprises that also having hydrolock sewage enters the sewage drainage pipe of mouth and have the wastewater drainage pipe that waste water enters mouth; Said sewage drainage pipe is communicated with said standpipe tube connector, and said wastewater drainage pipe is communicated with said water inlet.
3. overflow-proof pipeline access device according to claim 2, it is characterized in that: it also comprises the air pressure adjustment case, said air pressure adjustment case is communicated with said sewage drainage pipe.
4. according to claim 1 or 2 or 3 described overflow-proof pipeline access devices, it is characterized in that: the top tank wall that is provided with the casing of water inlet is provided with the land drainage hole.
5. according to claim 2 or 3 described overflow-proof pipeline access devices, it is characterized in that: said sewage drainage Guan Yiduan passes said flashback tank sidewall and is communicated with said standpipe tube connector.
6. according to claim 2 or 3 described overflow-proof pipeline access devices, it is characterized in that: said sewage drainage Guan Yiduan passes said flashback tank top tank wall and is communicated with said standpipe tube connector.
7. according to claim 2 or 3 described overflow-proof pipeline access devices, it is characterized in that: said sewage drainage pipe is arranged on said flashback tank top.
CN2011101455072A 2011-06-01 2011-06-01 Access apparatus of pipeline for anti-back overflow Expired - Fee Related CN102330453B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101455072A CN102330453B (en) 2011-06-01 2011-06-01 Access apparatus of pipeline for anti-back overflow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101455072A CN102330453B (en) 2011-06-01 2011-06-01 Access apparatus of pipeline for anti-back overflow

Publications (2)

Publication Number Publication Date
CN102330453A true CN102330453A (en) 2012-01-25
CN102330453B CN102330453B (en) 2013-11-27

Family

ID=45482398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101455072A Expired - Fee Related CN102330453B (en) 2011-06-01 2011-06-01 Access apparatus of pipeline for anti-back overflow

Country Status (1)

Country Link
CN (1) CN102330453B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104727394A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Integrated bathroom
CN104727395A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Integrated bathroom
CN104727396A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Bathroom
CN104746591A (en) * 2015-03-31 2015-07-01 中民筑友有限公司 Bathroom
CN110453757A (en) * 2019-09-05 2019-11-15 汪兴全 A kind of drainage device and its drainage method that bilge water resisting flows backward
CN112982617A (en) * 2021-02-05 2021-06-18 江西中烟工业有限责任公司 Device capable of exhausting air in one direction and preventing bromine gas from returning to drainage pipeline

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104727390A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Integrated bathroom
CN104746594A (en) * 2015-03-31 2015-07-01 中民筑友有限公司 Bathroom
CN104746593A (en) * 2015-03-31 2015-07-01 中民筑友有限公司 Integral bathroom

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162001A (en) * 1965-09-22 1969-08-20 Gabriel-Louis De Bruyne Improvements in or relating to Drainage System for Sinks, Lavatory Basins and the like
US6056014A (en) * 1997-07-31 2000-05-02 Noriatsu Kojima Drainage collective pipe joint
EP1045076A2 (en) * 1999-04-14 2000-10-18 Bridgestone Corporation Building drainage system
JP2002327474A (en) * 2001-04-27 2002-11-15 Aron Kasei Co Ltd Collective batch drainage system for indoor use
JP2003056030A (en) * 2001-08-09 2003-02-26 Toto Ltd Joint, joint system and assembled vertical pipe joint
CN2647954Y (en) * 2003-03-20 2004-10-13 夏欣欣 Water sealing box for water draining vertical pipe
JP2005220543A (en) * 2004-02-04 2005-08-18 Kobayashi Seisakusho:Kk Drain trap
CN2797460Y (en) * 2005-06-10 2006-07-19 刘静洲 Complementary pipe network end water storing device
CN101058989A (en) * 2007-06-08 2007-10-24 王凤蕊 Kitchen-toilet modularization same floor water feeding and draining device
JP2008115595A (en) * 2006-11-02 2008-05-22 Bridgestone Corp Combined joint
JP2009133132A (en) * 2007-11-30 2009-06-18 Kubota Ci Kk Pit connection structure and pit setting method
CN201620446U (en) * 2010-03-12 2010-11-03 张超 Sedimentation box type drainage system
CN202124902U (en) * 2011-06-01 2012-01-25 王凤蕊 Returning-overflow prevention pipeline access device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1162001A (en) * 1965-09-22 1969-08-20 Gabriel-Louis De Bruyne Improvements in or relating to Drainage System for Sinks, Lavatory Basins and the like
US6056014A (en) * 1997-07-31 2000-05-02 Noriatsu Kojima Drainage collective pipe joint
EP1045076A2 (en) * 1999-04-14 2000-10-18 Bridgestone Corporation Building drainage system
JP2002327474A (en) * 2001-04-27 2002-11-15 Aron Kasei Co Ltd Collective batch drainage system for indoor use
JP2003056030A (en) * 2001-08-09 2003-02-26 Toto Ltd Joint, joint system and assembled vertical pipe joint
CN2647954Y (en) * 2003-03-20 2004-10-13 夏欣欣 Water sealing box for water draining vertical pipe
JP2005220543A (en) * 2004-02-04 2005-08-18 Kobayashi Seisakusho:Kk Drain trap
CN2797460Y (en) * 2005-06-10 2006-07-19 刘静洲 Complementary pipe network end water storing device
JP2008115595A (en) * 2006-11-02 2008-05-22 Bridgestone Corp Combined joint
CN101058989A (en) * 2007-06-08 2007-10-24 王凤蕊 Kitchen-toilet modularization same floor water feeding and draining device
JP2009133132A (en) * 2007-11-30 2009-06-18 Kubota Ci Kk Pit connection structure and pit setting method
CN201620446U (en) * 2010-03-12 2010-11-03 张超 Sedimentation box type drainage system
CN202124902U (en) * 2011-06-01 2012-01-25 王凤蕊 Returning-overflow prevention pipeline access device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104727394A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Integrated bathroom
CN104727395A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Integrated bathroom
CN104727396A (en) * 2015-03-31 2015-06-24 中民筑友有限公司 Bathroom
CN104746591A (en) * 2015-03-31 2015-07-01 中民筑友有限公司 Bathroom
CN110453757A (en) * 2019-09-05 2019-11-15 汪兴全 A kind of drainage device and its drainage method that bilge water resisting flows backward
CN112982617A (en) * 2021-02-05 2021-06-18 江西中烟工业有限责任公司 Device capable of exhausting air in one direction and preventing bromine gas from returning to drainage pipeline

Also Published As

Publication number Publication date
CN102330453B (en) 2013-11-27

Similar Documents

Publication Publication Date Title
CN102330453B (en) Access apparatus of pipeline for anti-back overflow
CN102330459B (en) Riser connecting member for preventing overflow return
WO2017016125A1 (en) Integrated bathroom floor
WO2018157846A1 (en) Vertical reclaimed water storage, treatment and reuse system for water closet
CN102330456B (en) Riser connecting member for draining at same layer
CN102330452B (en) Overflow-proof same-layer water drainage riser connecting piece
CN202990036U (en) Connecting piece special for ventilation of high-rise buildings
CN203129266U (en) Filter type modularized water draining and saving device on same floor for high-rise building
CN102330458B (en) Pipeline connection device for preventing overflow return and sludge
CN105926730B (en) Board-like same layer cribbing water integrated system drops in a kind of house class toilet
CN202124895U (en) Sludge-prevention pipeline connecting device
CN202124902U (en) Returning-overflow prevention pipeline access device
CN202124904U (en) Anti-overflowing sludge-prevention pipeline connecting device
CN102330455B (en) Water sealing and draining device for preventing overflow return
CN202124894U (en) Pipeline access device
CN102330460B (en) Pipe accessing device
CN202124906U (en) Water seal drainage device preventing overflow return
CN103015496A (en) Special connector for ventilation of high-rise building
CN102330454B (en) Pipeline connection device for preventing sludge
CN111827445A (en) Same-floor drainage embedded floor drain
CN201099889Y (en) Indoor single vertical tube drain system
CN202124903U (en) Return overflow-preventive vertical pipe connecting piece
CN110424509A (en) A kind of antifreeze odor-resistant toilet of water tank-free direct-drain water-saving
CN215166175U (en) Bathroom drainage pipe system and same-floor drainage bathroom
CN213143330U (en) Same-floor drainage embedded floor drain

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131127