CN102330453B - Access apparatus of pipeline for anti-back overflow - Google Patents
Access apparatus of pipeline for anti-back overflow Download PDFInfo
- Publication number
- CN102330453B CN102330453B CN2011101455072A CN201110145507A CN102330453B CN 102330453 B CN102330453 B CN 102330453B CN 2011101455072 A CN2011101455072 A CN 2011101455072A CN 201110145507 A CN201110145507 A CN 201110145507A CN 102330453 B CN102330453 B CN 102330453B
- Authority
- CN
- China
- Prior art keywords
- water seal
- tank
- flashback tank
- returning
- drainage pipe
- 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.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000010865 sewage Substances 0.000 claims description 48
- 239000002351 wastewater Substances 0.000 claims description 23
- 230000002265 prevention Effects 0.000 claims description 14
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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
Technical field
The present invention relates to a kind of building water supply and drainage device, specifically, related to a kind of returning-overflow prevention pipeline access device.
Background technology
At present, there are problems in drainage system, and as seepage, back foul, noise etc., especially seepage, line clogging sewage return that to overflow into the problem of chamber, back foul polluting particularly outstanding; In order to overcome the above problems, many technician have proposed different solutions for above problem: 1, in special single riser systems, by at transverse tube and standpipe intersection, pipelined channel being set to form the hollow current, improve the ventilation capacity of soil stack, reduce the floor drain back foul; 2, adopt two standpipe modes, the Special 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 because standpipe is local, to interior decoration, bring certain influence, and take the interior space; Above technology all in various degree solution the floor drain problem, but all have to solve, stop up sewage and do not return excessive problem.
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 for the deficiencies in the prior art, thereby but provide the returning-overflow prevention pipeline access device of a kind of simple in structure, design science, easy to use, dependable performance self-sealing overflow-proof.
To achieve these goals, the technical solution adopted in the present invention is: a kind of returning-overflow prevention pipeline access device, it comprises standpipe tube connector, flashback tank and is arranged on the interior water seal of flashback tank cuts apart boatswain chair, wherein, top and the described flashback tank top tank wall hinged inside of boatswain chair cut apart in described water seal, described standpipe tube connector passes described flashback tank setting, is provided with outfall on described standpipe tube connector, and the lowest part of described outfall is not less than described water seal and cuts apart the boatswain chair bottom; When described water seal was cut apart boatswain chair bottom top and is located on described flashback tank tank wall, described water seal was cut apart boatswain chair described flashback tank is divided into to two mutual disconnected casings; Described outfall is arranged in one of them casing, wherein on the tank wall of another casing, is provided with water inlet.
Based on above-mentioned, it also comprises that having hydrolock sewage enters the sewage drainage pipe of mouth and have the wastewater drainage pipe that waste water enters mouth, and described sewage drainage pipe is communicated with described standpipe tube connector, and described wastewater drainage pipe is communicated with described water inlet.
Based on above-mentioned, it also comprises the air pressure adjustment case, and described air pressure adjustment case is communicated with described sewage drainage pipe.
Based on above-mentioned, be provided with on the top tank wall of casing of water inlet and be provided with the land drainage hole.
Based on above-mentioned, described sewage drainage Guan Yiduan passes described flashback tank sidewall and is communicated with described standpipe tube connector.
Based on above-mentioned, described sewage drainage Guan Yiduan passes described flashback tank top tank wall and is communicated with described standpipe tube connector.
Based on above-mentioned, described sewage drainage pipe is arranged on described flashback tank top.
The relative prior art of the present invention has outstanding substantive distinguishing features and marked improvement, and specifically, this returning-overflow prevention pipeline access device has the following advantages:
1, because wastewater drainage pipe directly is connected with flashback tank, formed the structure of a concentrated water-sealing stinking-proof in family, effectively avoided one of them water seal to lose efficacy and caused the problem of indoor back foul;
2, the water of each discharge of wastewater point discharge, all pass through flashback tank and discharge, the water in flashback tank has just improved frequency of replacement like this, is unfavorable for that the water evaporation in flashback tank is dry, washroom is prevented back foul and avoids water seal to evaporate and the secondary pollution of initiation have effect preferably;
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 forms 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 to two confined spaces that can not be communicated with, namely, sewage in a confined space flows into flashback tank can't enter another confined space, thereby can effectively stop sewage or foul smell in pipeline to return into indoor;
In case during the air pressure that in 4 sewage conducts, generation pressure is larger, 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 to two confined spaces that can not be communicated with, can solves 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, but that it has advantages of is simple in structure, design science, easy to use, dependable performance self-sealing overflow-proof and back foul.
The accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
The specific embodiment
Below by the specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of returning-overflow prevention pipeline access device, it comprises standpipe tube connector 4, have hydrolock sewage and enter mouthfuls 10 sewage drainage pipe 9, have waste water and enter mouthfuls 8 wastewater drainage pipe 7, air pressure adjustment case 11, boatswain chair 6 is cut apart in flashback tank 1 and the water seal be arranged in flashback tank 1, wherein, top and the described flashback tank 1 top tank wall hinged inside of boatswain chair 6 cut apart in described water seal, described standpipe tube connector 4 passes described flashback tank 1 and arranges, on described standpipe tube connector 4, be provided with outfall 5, the lowest part of described outfall 5 is not less than that boatswain chair 6 bottoms are cut apart in described water seal so that flashback tank 1 forms water seal, when described water seal is cut apart boatswain chair 6 bottoms tops and is located on described flashback tank 1 tank wall, described water seal is cut apart boatswain chair 6 described flashback tank is divided into to two mutual disconnected casings, described outfall 5 is positioned at one of them casing, wherein on the tank wall of another casing, is provided with water inlet 2, described sewage drainage pipe 9 one ends pass described flashback tank 1 sidewall and are communicated with described standpipe tube connector 4, and described wastewater drainage pipe 7 is communicated with described water inlet 2, described air pressure adjustment case 11 is communicated with described sewage drainage pipe 9, be provided with on the top tank wall of casing of water inlet 2 and be provided with land drainage hole 3.
Specifically, in case occur, stop up, pressure is larger returns overflow sewage or foul smell and will pour in flashback tank 1, destroy the less water seal of flashback tank 1 internal pressure, and acting in opposition is cut apart boatswain chair 6 in described water seal, make described water seal cut apart the top tank wall rotation of the top of boatswain chair 6 around described flashback tank 1, and then, to make described water seal cut apart boatswain chair 6 bottoms tightly pushes up and is located on described flashback tank 1 tank wall, now, boatswain chair 6 is cut apart in described water seal can be divided into two parts by described flashback tank 1, and forms two mutual disconnected casings; In case occur, stop up, under the effect of returning overflow sewage or foul smell, described water seal is cut apart boatswain chair 6 immediately by described water inlet 2 with described outfall 5 is isolated opens, and can prevent effectively that sewage or foul smell from returning and overflow and go out from water inlet 2, and the pressure that returns overflow sewage or foul smell is larger, and it is tighter that the two completely cuts off;
What pay particular attention to is: 1, based on the concept of water inlet 2, land drainage hole 3 and outfall 5, the lowest part that has implied described water inlet 2 and described land drainage hole 3 is not less than the lowest part of described outfall 5, otherwise this device can't draining; 2, the concept of cutting apart boatswain chair 6 based on water seal, implied described water seal and cut apart the base plate of the bottom of boatswain chair 6 higher than described flashback tank 1, and described water seal cut apart the two sides of boatswain chair 6 and with it corresponding described flashback tank 1 two sides tank wall be relatively-movable sealing relationship; 3, when described water seal is cut apart boatswain chair 6 bottoms tops and is located on described flashback tank 1 tank wall, described water seal is cut apart boatswain chair 6 described flashback tank is divided into to two mutual disconnected casings, also can know by inference thus, described water seal cut apart the two sides of boatswain chair 6 and with it corresponding described flashback tank 1 two sides tank wall should be relatively-movable sealing relationship, and also can know by inference thus, top and described flashback tank 1 top tank wall that boatswain chair 6 is cut apart in described water seal should be sealing relationship; That is, stop up in the situation that do not occur, aforementioned structure should guarantee the normal drainage of this device and water seal back foul effect.
During construction, flashback tank is embedded in floor slab preformed hole, and make waterproofing course, then, according to washroom arrangement of implement figure, assembling sewage drainage pipe and wastewater drainage pipe, and connect the air pressure adjustment case at the end of sewage drainage pipe, sewage drainage pipe, wastewater drainage pipe are connected and seal with the corresponding connector of flashback tank respectively; This layer standpipe inserted to socket on the standpipe tube connector, lower floor's standpipe is inserted to socket under the standpipe tube connector, and sealing respectively; Then, the utensil gutters such as wash basin, washing machine, shower, bathtub, mop pool are inserted to waste water and enter mouth, the effluent discharge pipes such as toilet and urinal are connected to sewage and enter mouth, namely completed 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 the interior formation water seal of flashback tank 1, when the waste water water level flowed into to outfall 5 times along the time, waste water will be by outfall 5 inflow standpipe tube connectors 4; When line clogging, returning excessive sewage or foul smell can enter in flashback tank 1 by outfall 5, now, the sewage or the foul smell that enter in 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 described water inlet 2, land drainage hole 3 and isolated the opening of described outfall 5, and formation sealing relationship, that is, sewage or foul smell in sewage conduct just can't be discharged flashback tank 1, thereby can prevent effectively that sewage or foul smell in sewage conduct from returning excessive;
When sewage enters in the standpipe tube connector by the sewage drainage pipe, after waste water flows into the standpipe tube connector by wastewater drainage pipe, in standpipe, produce air pressure fluctuation, when the air pressure section arrives lower floor's pipeline access device place, in the sewage drainage pipe, will produce pressure, when pressure is malleation, will be by gas extrusion to the air pressure adjustment case, gas volume in pipeline will enlarge, and pressure diminishes thereupon, reduces the impact of air pressure fluctuation on sewage row entrance; Under the effect of air pressure, water seal is cut apart boatswain chair 6 and is opened described water inlet 2 and described outfall 5 is isolated immediately, is divided into two spaces that can not be communicated with, and stops air pressure to enter wastewater drainage pipe; When in riser tube, becoming negative pressure, the gas be compressed in the air pressure adjustment case is released, and supplements the gas in pipeline, regulates negative pressure and sewage is entered to the impact of saliva envelope thereby alleviate; This device especially is applicable to high level and builds use.
1 of the present embodiment and embodiment are different mainly to be: described sewage drainage Guan Yiduan passes described flashback tank top tank wall and is communicated with described standpipe tube connector, to adapt to different drainage patterns or discharge structure.
1 of the present embodiment and embodiment are different mainly to be: described sewage drainage pipe is arranged on described flashback tank top, and namely described sewage drainage Guan Yiduan directly is communicated with described standpipe tube connector, to adapt to different drainage patterns or discharge structure.
Embodiment 4
1 of the present embodiment and embodiment are different mainly to be: this returning-overflow prevention pipeline access device does not comprise the air pressure adjustment case be communicated with described sewage drainage pipe; For multistory building, from top to bottom, manifold pressure fluctuation less, can not adopt the air pressure adjustment case, to simplify this apparatus structure for waste water or sewage.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can modify or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution 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. returning-overflow prevention 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, top and the described flashback tank top tank wall hinged inside of boatswain chair cut apart in described water seal, described standpipe tube connector passes described flashback tank setting, on described standpipe tube connector, be provided with outfall, the lowest part of described outfall is not less than described water seal and cuts apart the boatswain chair bottom; When described water seal was cut apart boatswain chair bottom top and is located on described flashback tank tank wall, described water seal was cut apart boatswain chair described flashback tank is divided into to two mutual disconnected casings; Described outfall is arranged in one of them casing, wherein on the tank wall of another casing, is provided with water inlet.
2. returning-overflow prevention pipeline access device according to claim 1, it is characterized in that: it also comprises that having hydrolock sewage enters the sewage drainage pipe of mouth and have the wastewater drainage pipe that waste water enters mouth, described sewage drainage pipe is communicated with described standpipe tube connector, and described wastewater drainage pipe is communicated with described water inlet.
3. returning-overflow prevention pipeline access device according to claim 2, it is characterized in that: it also comprises the air pressure adjustment case, described air pressure adjustment case is communicated with described sewage drainage pipe.
4. according to claim 1 or 2 or 3 described returning-overflow prevention pipeline access devices, it is characterized in that: be provided with on the top tank wall of casing of water inlet and be provided with the land drainage hole.
5. according to the described returning-overflow prevention pipeline access device of claim 2 or 3, it is characterized in that: described sewage drainage Guan Yiduan passes described flashback tank sidewall and is communicated with described standpipe tube connector.
6. according to the described returning-overflow prevention pipeline access device of claim 2 or 3, it is characterized in that: described sewage drainage Guan Yiduan passes described flashback tank top tank wall and is communicated with described standpipe tube connector.
7. according to the described returning-overflow prevention pipeline access device of claim 2 or 3, it is characterized in that: described sewage drainage pipe is arranged on described flashback tank top.
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 CN102330453A (en) | 2012-01-25 |
| CN102330453B true 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 (3)
| 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 |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746591A (en) * | 2015-03-31 | 2015-07-01 | 中民筑友有限公司 | Bathroom |
| CN104727396A (en) * | 2015-03-31 | 2015-06-24 | 中民筑友有限公司 | Bathroom |
| CN104727395A (en) * | 2015-03-31 | 2015-06-24 | 中民筑友有限公司 | Integrated bathroom |
| CN104727394A (en) * | 2015-03-31 | 2015-06-24 | 中民筑友有限公司 | Integrated bathroom |
| CN110453757A (en) * | 2019-09-05 | 2019-11-15 | 汪兴全 | Drainage device and drainage method for preventing backflow of sewage |
| CN112982617B (en) * | 2021-02-05 | 2022-05-20 | 江西中烟工业有限责任公司 | A device for preventing bromine gas from returning to a drainage pipeline capable of one-way exhaust |
Citations (6)
| 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 |
| CN2647954Y (en) * | 2003-03-20 | 2004-10-13 | 夏欣欣 | Water sealing box for water draining vertical pipe |
| 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 |
| 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 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056014A (en) * | 1997-07-31 | 2000-05-02 | Noriatsu Kojima | Drainage collective pipe joint |
| JP2000297447A (en) * | 1999-04-14 | 2000-10-24 | Bridgestone Corp | Drainage system for building |
| JP2002327474A (en) * | 2001-04-27 | 2002-11-15 | Aron Kasei Co Ltd | Collective collective drainage equipment used indoors |
| JP2003056030A (en) * | 2001-08-09 | 2003-02-26 | Toto Ltd | Joint, joint system and assembled vertical pipe joint |
| JP2005220543A (en) * | 2004-02-04 | 2005-08-18 | Kobayashi Seisakusho:Kk | Drain trap |
| JP2008115595A (en) * | 2006-11-02 | 2008-05-22 | Bridgestone Corp | Combined joint |
| JP5469807B2 (en) * | 2007-11-30 | 2014-04-16 | クボタシーアイ株式会社 | 接合 Joining structure and installation method |
-
2011
- 2011-06-01 CN CN2011101455072A patent/CN102330453B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| CN2647954Y (en) * | 2003-03-20 | 2004-10-13 | 夏欣欣 | Water sealing box for water draining vertical pipe |
| 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 |
| 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 (3)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102330453A (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102330453A (en) | Access apparatus of pipeline for anti-back overflow | |
| CN102330459B (en) | Riser connecting member for preventing overflow return | |
| CN203066182U (en) | Modular water saving device for drainage on same floor for high-rise building | |
| WO2018157846A1 (en) | Vertical reclaimed water storage, treatment and reuse system for water closet | |
| CN102330458B (en) | Pipeline connection device for preventing overflow return and sludge | |
| 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 | |
| CN102330455B (en) | Water sealing and draining device for preventing overflow return | |
| CN202124895U (en) | Sludge-prevention pipeline connecting device | |
| CN202124902U (en) | Returning-overflow prevention pipeline access device | |
| CN201406711Y (en) | Reclaimed water recycling device | |
| CN202124904U (en) | Anti-overflowing sludge-prevention pipeline connecting device | |
| CN102330460B (en) | Pipe accessing device | |
| CN202124894U (en) | Pipeline access device | |
| CN103015496B (en) | Special connector for ventilation of high-rise building | |
| CN218148697U (en) | Building indoor life drainage annular ventilation pipeline system | |
| CN202273288U (en) | Pipe type air pressure adjusting water discharge device of building drainage vertical pipe | |
| CN201099889Y (en) | Indoor single vertical tube drain system | |
| CN102330454B (en) | Pipeline connection device for preventing sludge | |
| CN206143902U (en) | Deodorant ponding treater of preformed hole | |
| CN215166175U (en) | Bathroom drainage pipe system and same-floor drainage bathroom | |
| CN202124903U (en) | Return overflow-preventive vertical pipe connecting piece | |
| CN202273283U (en) | Air pressure adjusting drainage device | |
| CN110424509A (en) | A kind of antifreeze odor-resistant toilet of water tank-free direct-drain water-saving |
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 |
Granted publication date: 20131127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |