CN107419780B - Connecting structure and method between non-pressure pipes on upper floor and lower floor of module - Google Patents
Connecting structure and method between non-pressure pipes on upper floor and lower floor of module Download PDFInfo
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- CN107419780B CN107419780B CN201610349339.1A CN201610349339A CN107419780B CN 107419780 B CN107419780 B CN 107419780B CN 201610349339 A CN201610349339 A CN 201610349339A CN 107419780 B CN107419780 B CN 107419780B
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
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- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention relates to a connecting structure between non-pressure pipes of upper and lower floors of a module, which comprises a ventilation vertical pipe and a drainage vertical pipe which are arranged between an upper layer module and a lower layer module, the top of the ventilation vertical pipe is provided with a first direct pipe fitting, the middle upper part is provided with a first telescopic joint, the lower part is provided with a first four-way embedded part, a first fire stopping ring is sleeved on the first four-way embedded part, a first embedded base is sleeved at the bottom of the first four-way embedded part, the top of the vertical drainage pipe is provided with a second direct pipe fitting, the middle upper part is provided with a second expansion joint, the middle lower part is provided with a six-way pipe fitting, the lower part is provided with a second four-way embedded part, a second fire stopping ring is sleeved on the second four-way embedded part, a second embedded base is sleeved at the bottom of the second four-way embedded part, a space is reserved between the two direct pipe fittings and the upper layer module, and the two four-way embedded parts and the lower layer module are on the same horizontal plane. After adopting above-mentioned structure, its beneficial effect does: the construction is convenient, and the cost is low.
Description
Technical Field
The invention belongs to the technical field of drainage of the same floor of a modular building, and particularly relates to a connecting structure and a connecting method for non-pressure pipelines of upper and lower floors of a module.
Background
The same-floor drainage refers to a drainage mode that the drainage of sewage and waste reaches or exceeds the drainage modes of the same type and other drainage modes by plane construction and laying in the same floor, the sewage and the waste smoothly enter a drain pipe, and once the condition that the sewage and the waste need to be dredged and cleaned occurs, the problem can be solved in the floor sleeve.
As shown in fig. 1, the traditional drainage connection technology for the same floor of a building comprises a vent pipe 6, a drain pipe 7 and a caisson (not shown), wherein an H pipe 8 is connected between the vent pipe 6 and the drain pipe 7, fire stop rings 9 are respectively arranged at the tops of the vent pipe 6 and the drain pipe 7, a plurality of expansion joints 10 are respectively arranged on the vent pipe 6 and the drain pipe 7 at intervals, the distance between two adjacent expansion joints 10 on the upper floor and the lower floor is 4 meters, the free stroke of the expansion joint 10 is usually 45mm, a water-following tee 71 is further arranged at the bottom of the drain pipe 7, and the water-following tee 71 is connected with a drain outlet of the caisson through a pipeline, a pipe fitting and the like. With this connection structure, there are problems in that:
1. because the free stroke of telescopic joint is only 50mm, in case the blow off pipe takes place to block up, change difficulty after the pipeline disconnection, overlap joint length when making both ends connect like this only about 20mm, is not conform to the standard requirement (standard requirement overlap joint length is no less than 45 mm).
2. The ground of the toilet needs to be subjected to settlement, water stop rings, waterproof membranes, water closing tests and accumulated water removal treatment, namely a caisson needs to be arranged, the existing caisson construction process needs to be provided with a plurality of supporting partitions, the caisson is divided into a plurality of small lattices through the supporting partitions, a blow-off pipe and a floor drain pipe are backfilled after being connected, a leveling layer, a drainage slope, a waterproof layer and the like need to be arranged, and the civil engineering construction cost is high and the difficulty is high. In addition, in the caisson construction process, if no supporting partition is arranged, the filler in the middle of the backfill layer gradually sinks after time lapse, the leveling layer and the waterproof layer on the upper side crack, sewage leaks to the backfill layer, the time is long, and the whole backfill layer becomes a sewage pool. Because the accumulated water in the backfill layer can not be naturally discharged, the floor needs to be dug to open the backfill layer for pumping water, which is equal to the need of refitting the toilet again, and the project amount and the maintenance cost are increased.
3. Holes need to be reserved when concrete is poured on the upper layer and the lower layer, a sequence of follow-up construction such as formwork hanging, finished product protection, grouting plugging, formwork removal, water closing and leakage checking needs to be carried out after pipeline construction is finished, and the construction process is complex.
Therefore, improvements are needed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a connecting structure and a connecting method between non-pressure pipes on upper and lower floors of a module.
In order to achieve the purpose, the invention adopts the following technical scheme:
a connecting structure between non-pressure pipes on upper and lower floors of a module comprises a ventilation vertical pipe and a drainage vertical pipe which are arranged between an upper-layer module and a lower-layer module, an H pipe is connected between the ventilation vertical pipe and the drainage vertical pipe, a vertical inspection port is arranged on the drainage vertical pipe,
the top of the ventilation vertical pipe is provided with a first direct pipe fitting, the middle upper part of the ventilation vertical pipe is provided with a first telescopic joint, the lower part of the ventilation vertical pipe is provided with a first four-way embedded part, the first four-way embedded part is sleeved with a first fire stopping ring, the bottom of the first four-way embedded part is sleeved with a first embedded base,
the top of the vertical drainage pipe is provided with a second direct pipe, the middle upper part is provided with a second expansion joint, the middle lower part is provided with a six-way pipe, the lower part is provided with a second four-way embedded part, the second four-way embedded part is sleeved with a second fire stopping ring, the bottom of the second four-way embedded part is sleeved with a second embedded base,
and a certain distance is reserved between the first direct pipe fitting and the upper module and between the second direct pipe fitting and the lower module, and the first four-way embedded part and the second four-way embedded part are on the same horizontal plane with the lower module.
According to the invention, the free strokes of the first telescopic joint and the second telescopic joint are both 200 mm.
Further, the distance between the first direct pipe fitting and the upper module and the distance between the second direct pipe fitting and the upper module are 30 mm.
According to the invention, the transverse side port of the second four-way embedded part is connected with the floor drain embedded part through a pipeline, a pipe fitting and the like.
According to the invention, the first embedded base and the second embedded base are cylindrical cover bodies, and a circular through hole is arranged in the middle of each cover body and is respectively matched with the first four-way embedded part and the second four-way embedded part. When pouring, the concrete can be prevented from permeating the first four-way embedded part and the second four-way embedded part.
According to the invention, the first embedded base and the second embedded base are integrally formed to form an embedded base body. The center distance between the ventilation vertical pipe and the drainage vertical pipe is fixed by adopting the embedded base body.
According to the invention, the six-way pipe fitting comprises a first pipe body, wherein two ends of the first pipe body are respectively provided with an upper port and a lower port, the middle part of the first pipe body is provided with an equal-diameter side port arranged along the radial direction of the first pipe body, and three different-diameter side ports are arranged below the equal-diameter side port.
According to the invention, the first four-way embedded part and the second four-way embedded part both comprise a second pipe body, and an annular flange which is integrally formed with the inner wall of the second pipe body is arranged in the second pipe body.
According to the invention, the first fire stopping ring and the second fire stopping ring are respectively arranged below the transverse side openings of the first four-way embedded part and the second four-way embedded part and above the first embedded base and the second embedded base.
A method for connecting non-pressure pipes on upper and lower floors of a module comprises the following steps:
step one, building of upper module and lower module
(1) Putting an iron plate in the C-shaped steel, and coating demoulding oil on the surface of the iron plate; then, positioning by using two limit fixing blocks; then, sleeving a first fire stopping ring and a first embedded base on the first four-way embedded part, and sleeving a second fire stopping ring and a second embedded base on the second four-way embedded part; finally, placing the first four-way embedded part and the second four-way embedded part on the iron plate;
(2) positioning a four-way embedded part: placing two first positioning bushings at the bottoms of the interiors of a first four-way embedded part and a second four-way embedded part respectively; then, two second positioning bushings are respectively placed on the annular flanges of the first four-way embedded part and the second four-way embedded part; finally, two iron cover plates are respectively covered on the first four-way embedded part and the second four-way embedded part, and two long nuts respectively penetrate through the iron cover plates of the first four-way embedded part and the second four-way embedded part, the second positioning bushing and the first positioning bushing from top to bottom to fix the first four-way embedded part and the second four-way embedded part on the iron plates;
(3) pouring: pouring concrete on the C-shaped steel and the iron plate;
(4) after the strength of the concrete meets the requirement, the long nut is removed, and the iron cover plate and the second positioning bush are sequentially taken down; when the module is hoisted, tapping the iron plate at the bottom of the module to enable the iron plate to fall off, and enabling the first positioning bush to fall off; the upper module and the lower module are built;
step two, pipeline installation
(1) Taking a ventilation vertical pipe, and connecting the ventilation vertical pipe with a first four-way embedded part;
(2) a drainage vertical pipe is connected with the six-way pipe fitting, and the six-way pipe fitting is connected with the second four-way embedded part;
(3) installing a first direct pipe fitting and a second direct pipe fitting on the ventilation vertical pipe and the drainage vertical pipe respectively;
(4) and pulling up the ventilation vertical pipe in the first telescopic joint and the drainage vertical pipe in the second telescopic joint to be in butt joint with the first four-way embedded part and the second four-way embedded part at the bottom of the upper module, and screwing the threaded caps on the first telescopic joint and the second telescopic joint.
The invention relates to a connecting structure and a method between upper and lower floor pressureless pipes of a module, which has the advantages that:
1. the setting of the embedded base can prevent the concrete from permeating into the ventilation vertical pipe and the drainage vertical pipe when the concrete is poured;
2. the first fire stopping ring and the second fire stopping ring are respectively arranged below the transverse side openings of the first four-way embedded part and the second four-way embedded part and above the embedded base, after pouring, the periphery of the fire stopping ring is made of concrete, compared with an iron ring on the periphery of the existing fire stopping ring, the fire stopping ring has a better fire stopping effect, and simultaneously plays a limiting role in the embedded base;
3. the improvement of the expansion joint solves the connection between the upper layer and the lower layer of the drain pipe, and the pipeline installation and the later maintenance are more convenient;
4. the problem of floor drain drainage is solved by the arrangement of the transverse side port of the second four-way embedded part;
5. the arrangement of the modules saves the working procedures of hanging mould grouting and the like, and effectively solves the problem of water leakage of the gap between the pipeline and the concrete;
6. the arrangement of the modules saves the arrangement of a caisson, the construction process is simple, and the manufacturing cost is reduced;
7. the four-way embedded part has the advantages of simple positioning method, convenient construction and good positioning effect, and after pouring is finished, the iron plate, the iron cover plate, the first positioning bushing and the second positioning bushing can be taken down for reuse.
Drawings
Fig. 1 is a schematic structural view of drainage of a same floor of a conventional building.
Fig. 2 is a structural view illustrating a connection structure between non-pressure pipes on upper and lower floors of a module according to the present invention.
FIG. 3 is a schematic structural diagram of a first four-way embedment and a second four-way embedment.
Fig. 4 is a schematic structural view of a six-way pipe fitting.
Fig. 5(a) and 5(B) are schematic structural diagrams of the first pre-buried base and the second pre-buried base, respectively.
Fig. 6 is a schematic structural view of the embedded base body.
FIG. 7 is a front view of a first four-way embedment and a second four-way embedment as positioned;
FIG. 8 is a top view of the first four-way embedment and the second four-way embedment as they are positioned.
Detailed Description
The structure and method for connecting the pressureless pipes on the upper and lower floors of the module according to the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the connecting structure between non-pressure pipes on upper and lower floors of a module of the invention comprises an air-vent vertical pipe 1 and a water-drain vertical pipe 2 which are arranged between an upper module 4 and a lower module 5, an H pipe 3 is connected between the air-vent vertical pipe 1 and the water-drain vertical pipe 2, a vertical inspection opening 27 is arranged on the water-drain vertical pipe 2, a first direct pipe 11 is arranged at the top of the air-vent vertical pipe 1, a first expansion joint 12 is arranged at the middle upper part, a first four-way embedded part 13 is arranged at the lower part, a first fire-retardant ring 14 is sleeved on the first four-way embedded part 13, a first embedded base 15 is sleeved at the bottom of the first four-way embedded part 13, a second direct pipe 21 is arranged at the top of the water-drain vertical pipe 2, a second expansion joint 22 is arranged at the middle upper part, a six-way pipe 26 is arranged at the middle lower part, a second four-way embedded, the bottom of the second four-way embedded part 23 is sleeved with a second embedded base 25, a certain distance is reserved between the first direct pipe fitting 11 and the upper module 4 and between the second direct pipe fitting 21 and the lower module 5, and the first four-way embedded part 13 and the second four-way embedded part 23 are on the same horizontal plane.
The free strokes of the first telescopic joint 12 and the second telescopic joint 22 are both 200 mm.
The distance between the first and second direct pipe members 11, 21 and the upper module 4 is 30 mm.
As shown in fig. 3, the lateral side port 230 of the second four-way embedment 23 is connected with the floor drain embedment through a pipe, a pipe fitting or the like.
As shown in fig. 5(a) and fig. 5(B), the first pre-buried base 15 and the second pre-buried base 25 are cylindrical cover bodies, a circular through hole (150/250) is formed in the middle of each cover body, and the through hole (150/250) is matched with the first four-way pre-buried part 13 and the second four-way pre-buried part 24 respectively. When pouring, the concrete can be prevented from permeating into the first four-way embedded part 13 and the second four-way embedded part 24.
As shown in fig. 6, the first embedded base 15 and the second embedded base 25 are integrally formed to form an embedded base body 1525, and the center distance between the ventilation vertical pipe 1 and the drainage vertical pipe 2 can be fixed by using the embedded base body 1525.
As shown in fig. 4, the six-way pipe 26 includes a first pipe 261, an upper opening 262 and a lower opening 263 are respectively disposed at two ends of the first pipe 261, an equal-diameter side opening 264 is disposed at a middle portion of the first pipe 261 along a radial direction thereof, and three 50mm different-diameter side openings 265 are further disposed below the equal-diameter side opening 264.
As shown in fig. 2 and 7, each of the first four-way embedment 13 and the second four-way embedment 23 includes a second pipe body 108, and an annular flange 107 formed integrally with an inner wall of the second pipe body 108 is provided in the second pipe body 108.
As shown in fig. 2, the first firestop ring 14 and the second firestop ring 24 are respectively arranged below the transverse outlets of the first four-way embedded part 13 and the second four-way embedded part 23 and above the first embedded base 15 and the second embedded base 25.
The method for connecting the non-pressure pipes on the upper floor and the lower floor of the module based on the connecting structure comprises the following steps:
step one, building of upper module and lower module
(1) As shown in fig. 7 and 8, an iron plate 102 is placed inside the C-shaped steel 101, and a surface of the iron plate 102 is coated with a mold release oil; then, positioning is carried out by using two limit fixing blocks 109; then, a first fire stopping ring 14 and a first embedded base 15 are sleeved on the first four-way embedded part 13, and a second fire stopping ring 24 and a second embedded base 25 are sleeved on the second four-way embedded part 23; finally, placing the first four-way embedded part 13 and the second four-way embedded part 23 on the iron plate 102;
(2) positioning a four-way embedded part: placing two first positioning bushings 103 at the bottoms of the interiors of a first four-way embedded part 13 and a second four-way embedded part 23 respectively; then, two second positioning bushings 104 are respectively placed on the annular flanges 107 of the first four-way embedded part 13 and the second four-way embedded part 23; finally, two iron cover plates 105 are respectively covered on the first four-way embedded part 13 and the second four-way embedded part 23, and two long nuts 106 respectively penetrate through the iron cover plates 105, the second positioning bushings 104 and the first positioning bushings 103 of the first four-way embedded part 13 and the second four-way embedded part 23 from top to bottom to fix the first four-way embedded part 13 and the second four-way embedded part 23 on the iron plates 102;
(3) pouring: pouring concrete on the C-shaped steel 101 and the iron plate 102;
(4) after the strength of the concrete meets the requirement, the long nut 106 is removed, and the iron cover plate 105 and the second positioning bush 104 are sequentially taken down; when the module is hoisted, the iron plate 102 at the bottom of the module is tapped, the iron plate 102 falls off, and the first positioning bushing 103 falls off along with the iron plate 102; the upper module 4 and the lower module 5 are built;
step two, pipeline installation
(1) Taking a ventilation vertical pipe 1, and connecting the ventilation vertical pipe with a first four-way embedded part 13;
(2) the water taking and draining stand pipe 2 is connected with the six-way pipe fitting 26, and the six-way pipe fitting 26 is connected with the second four-way embedded part 23;
(3) installing a first direct pipe fitting 11 and a second direct pipe fitting 21 on the ventilation stand pipe 1 and the drainage stand pipe 2 respectively; secondly, respectively smearing glue on the inside of the first direct pipe fitting 11 of the ventilation vertical pipe 1 and the inside of the second direct pipe fitting 21 of the ventilation vertical pipe 2, and meanwhile smearing glue on the outside of the first four-way embedded part 13 and the outside of the second four-way embedded part 23 at the bottom of the upper module 4;
(4) and (3) pulling up the ventilation vertical pipe 1 in the first expansion joint 12 and the drainage vertical pipe 2 in the second expansion joint 22 to be in butt joint with the first four-way embedded part 13 and the second four-way embedded part 23 at the bottom of the upper module 4, and screwing the threaded caps on the first expansion joint 12 and the second expansion joint 22.
When the floor is finished, drilling a 50mm transverse side port 230 of the second four-way embedded part 23 by using a 45mm hole digger, and then connecting the second four-way embedded part with the floor drain embedded part through a pipeline, a pipe fitting and the like;
when the six-way pipe fitting is needed to be used, the equal-diameter side port 264 and the different-diameter side port 265 of the six-way pipe fitting 26 are drilled through the hole digger, then the equal-diameter side port 264 is connected with a sewage outlet of a toilet bowl, and the different-diameter side port 265 of the six-way pipe fitting 2 is connected with a counter basin, a washbasin and the like.
If ventilation is needed, the radial side port 130 (shown in fig. 3) of the first four-way embedment 13 is drilled.
The foregoing is merely a preferred embodiment of this invention and it will be appreciated by those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the invention. Such modifications and refinements are also to be considered within the scope of the present invention.
Claims (7)
1. A method for connecting a connecting structure between non-pressure pipes on upper and lower floors of a module, comprising the steps of:
step one, building of upper module and lower module
(1) Putting an iron plate in the C-shaped steel, and coating demoulding oil on the surface of the iron plate; then, positioning by using two limit fixing blocks; then, sleeving a first fire stopping ring and a first embedded base on the first four-way embedded part, and sleeving a second fire stopping ring and a second embedded base on the second four-way embedded part; finally, placing the first four-way embedded part and the second four-way embedded part on the iron plate; the first four-way embedded part and the second four-way embedded part both comprise a second pipe body, and annular flanges which are integrally formed with the inner wall of the second pipe body are arranged in the second pipe body;
(2) positioning a four-way embedded part: placing two first positioning bushings at the bottoms of the interiors of a first four-way embedded part and a second four-way embedded part respectively; then, two second positioning bushings are respectively placed on the annular flanges of the first four-way embedded part and the second four-way embedded part; finally, two iron cover plates are respectively covered on the first four-way embedded part and the second four-way embedded part, and two long nuts respectively penetrate through the iron cover plates of the first four-way embedded part and the second four-way embedded part, the second positioning bushing and the first positioning bushing from top to bottom to fix the first four-way embedded part and the second four-way embedded part on the iron plates;
(3) pouring: pouring concrete on the C-shaped steel and the iron plate;
(4) after the strength of the concrete meets the requirement, the long nut is removed, and the iron cover plate and the second positioning bush are sequentially taken down; when the module is hoisted, tapping the iron plate at the bottom of the module to enable the iron plate to fall off, and enabling the first positioning bush to fall off; the upper module and the lower module are built; the first four-way embedded part, the second four-way embedded part and the lower module are on the same horizontal plane;
step two, pipeline installation
(1) Taking a ventilation vertical pipe, wherein a first expansion joint is arranged at the middle upper part of the ventilation vertical pipe, the free stroke of the first expansion joint is 200mm,
connecting the lower end of the ventilation vertical pipe with a first four-way embedded part;
(2) taking a drainage vertical pipe and a six-way pipe fitting, wherein a vertical inspection opening is arranged on the drainage vertical pipe, a second expansion joint is arranged at the middle upper part of the drainage vertical pipe, the free stroke of the second expansion joint is 200mm, an H pipe is connected between the ventilation vertical pipe and the drainage vertical pipe,
connecting the lower end of a drainage vertical pipe with the six-way pipe fitting, wherein the lower end of the six-way pipe fitting is connected with the second four-way embedded part;
(3) respectively installing a first direct pipe fitting and a second direct pipe fitting at the tops of the ventilation vertical pipe and the drainage vertical pipe, wherein a space is reserved between the first direct pipe fitting and the upper module and between the second direct pipe fitting and the upper module;
(4) and pulling up the ventilation vertical pipe in the first telescopic joint and the drainage vertical pipe in the second telescopic joint to be in butt joint with the first four-way embedded part and the second four-way embedded part at the bottom of the upper module, and screwing the threaded caps on the first telescopic joint and the second telescopic joint.
2. The method for connecting a connecting structure between non-pressurized pipes on upper and lower floors of a module according to claim 1, wherein the interval between the first and second direct pipe members of the step two (3) and the upper module is 30 mm.
3. The method for connecting a connection structure between non-pressure pipes on upper and lower floors of a module according to claim 1, wherein the lateral side openings of the second four-way embedded parts are connected with the floor drain embedded parts through pipe fittings.
4. The method for connecting the non-pressure pipes on the upper and lower floors of the module as claimed in claim 1, wherein the first pre-buried base and the second pre-buried base are cylindrical covers, and a circular through hole is formed in the middle of each cover, and the through holes are respectively matched with the first four-way pre-buried part and the second four-way pre-buried part.
5. The method as claimed in claim 4, wherein the first pre-buried base and the second pre-buried base are integrally formed to form a pre-buried base body.
6. The method for connecting a connecting structure between non-pressurized pipes on upper and lower floors of a module as claimed in claim 1, wherein the six-way pipe comprises a first pipe body having an upper port and a lower port at both ends thereof, respectively, the first pipe body having a constant diameter side port formed at a middle portion thereof in a radial direction thereof, and three different diameter side ports formed below the constant diameter side port.
7. The method of claim 1, wherein the first and second firestop rings are positioned below lateral openings of the first and second four-way embedments, respectively, and above the first and second embedment bases, respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349339.1A CN107419780B (en) | 2016-05-24 | 2016-05-24 | Connecting structure and method between non-pressure pipes on upper floor and lower floor of module |
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| CN201610349339.1A CN107419780B (en) | 2016-05-24 | 2016-05-24 | Connecting structure and method between non-pressure pipes on upper floor and lower floor of module |
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| CN107419780B true CN107419780B (en) | 2020-05-01 |
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| CN110219345A (en) * | 2019-07-04 | 2019-09-10 | 濮阳市明锐建筑节能技术有限公司 | A kind of aqueous vapor separating member |
| CN111851662B (en) * | 2020-06-10 | 2021-11-16 | 日丰新材有限公司 | Testing method of gas-water separation type drainage vertical pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005146525A (en) * | 2003-11-11 | 2005-06-09 | Noriatsu Kojima | Drainage equipment |
| CN203823319U (en) * | 2014-05-08 | 2014-09-10 | 钟志文 | H-shaped tube with telescopic joints |
| CN204626542U (en) * | 2015-03-31 | 2015-09-09 | 中民筑友有限公司 | A kind of integral bathroom |
| CN204940443U (en) * | 2015-09-25 | 2016-01-06 | 中民筑友有限公司 | A kind of prefabricated integrated soil stack |
| CN105333234A (en) * | 2015-11-03 | 2016-02-17 | 浙江中财管道科技股份有限公司 | Embedded leakage-proof joint |
-
2016
- 2016-05-24 CN CN201610349339.1A patent/CN107419780B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005146525A (en) * | 2003-11-11 | 2005-06-09 | Noriatsu Kojima | Drainage equipment |
| CN203823319U (en) * | 2014-05-08 | 2014-09-10 | 钟志文 | H-shaped tube with telescopic joints |
| CN204626542U (en) * | 2015-03-31 | 2015-09-09 | 中民筑友有限公司 | A kind of integral bathroom |
| CN204940443U (en) * | 2015-09-25 | 2016-01-06 | 中民筑友有限公司 | A kind of prefabricated integrated soil stack |
| CN105333234A (en) * | 2015-11-03 | 2016-02-17 | 浙江中财管道科技股份有限公司 | Embedded leakage-proof joint |
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| CN107419780A (en) | 2017-12-01 |
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