CN114909524A - Threaded pipeline plate penetrating assembly and construction method - Google Patents
Threaded pipeline plate penetrating assembly and construction method Download PDFInfo
- Publication number
- CN114909524A CN114909524A CN202210776774.8A CN202210776774A CN114909524A CN 114909524 A CN114909524 A CN 114909524A CN 202210776774 A CN202210776774 A CN 202210776774A CN 114909524 A CN114909524 A CN 114909524A
- Authority
- CN
- China
- Prior art keywords
- connecting pipe
- pipeline
- connector
- waterproof
- lower connecting
- 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
Links
Images
Classifications
-
- 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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
-
- 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
- E03C1/26—Object-catching inserts or similar devices for waste pipes or outlets
- E03C1/264—Separate sieves or similar object-catching inserts
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- 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
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/12—Sealing the pipe being cut in two pieces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to the field of a leakage-proof structure of constructional engineering, in particular to a threaded pipeline threading plate assembly and a construction method thereof. The embedded waterproof sleeve is connected with the upper connecting pipe and the lower connecting pipe through the sealing threads, the sealing filler is added to enhance the sealing and waterproof performance of the pipeline during installation, when the pipeline penetrates through the floor slab, the floor slab can serve as a supporting point of the pipeline, the additional supporting point is not needed, and the installation cost of the pipeline is saved.
Description
Technical Field
The invention relates to the field of a leakage-proof structure of constructional engineering, in particular to a threaded pipeline plate penetrating assembly and a construction method.
Background
At present, a drain pipe is installed at a reserved hole of a concrete floor slab, water leakage is easy to occur at the edge of the drain pipe, the leakage problem is a common quality problem which cannot be thoroughly eradicated all the time, and the leakage around the reserved hole is a main phenomenon of building leakage and is also a problem to be solved urgently at present.
When the concrete of the floor slab is poured, a hole, generally a circular hole, is reserved at the position corresponding to the pipeline passing through, and the diameter of the hole is larger than that of the pipeline. When the pipeline is installed, the pipeline penetrates through a reserved hole in the floor slab, and finally a gap between the periphery of the pipeline and the hole of the floor slab is sealed. However, because the responsibility of constructors is not strong, the construction quality is not high, the gap is not sealed tightly, leakage is easy to occur, and the problem of building quality is caused.
In addition, also have the relevant patent to introduce through pre-buried connecting pipe when the floor is pour, later go up interface and lower interface and pass through threaded connection and pre-buried union coupling, solve pre-buried problem of leaking, but most pre-buried pipes are the constant diameter pipeline, are unfavorable for the fixed of pipeline on the one hand, can't overcome pre-buried pipe and upper and lower interface and pre-buried pipe and floor on the one hand in addition and be connected the long-time use and also can take place the seepage.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a threaded pipeline plate penetrating assembly and a construction method. The waterproof sleeves are pre-embedded at the positions of the pipelines in advance and are in variable-diameter shape and in threaded connection with the upper connecting pipe and the lower connecting pipe, the sealing waterproof performance of the pre-embedded assembly can be effectively improved, and when the pipelines penetrate through the floor slab by adopting the method, the floor slab can be used as a fulcrum of the pipelines, the additional fulcrum is not needed, and the installation cost of the pipelines is saved.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a threaded pipeline plate penetrating assembly and a construction method thereof, wherein the plate penetrating assembly comprises an upper connecting pipe, an embedded waterproof sleeve and a lower connecting pipe, the embedded waterproof sleeve is divided into three parts, the middle part of the embedded waterproof sleeve is provided with a waterproof wing ring, the upper section of the embedded waterproof sleeve is a cylindrical upper connector, the lower section of the embedded waterproof sleeve is provided with a cylindrical lower connector, and the upper connector and the lower connector are both provided with internal threads and are fixedly connected through the waterproof wing ring; the upper interface is connected with the waterproof wing ring in a symmetrical L shape; the top end of the lower connector is connected with the waterproof wing ring, and the inner diameter of the upper connector is smaller than that of the lower connector; the embedded waterproof sleeves are embedded and fixed in the floor slab conveniently.
Furthermore, the upper connecting pipe is of an equal diameter, and the lower connecting pipe is of a variable diameter; the lower connecting pipe is screwed into the lower connector, threads are arranged on the inner and outer parts of the upper section of the lower connecting pipe, and the outer diameter and the outer thread of the lower connecting pipe are matched with the inner diameter and the inner thread of the lower connector; the upper connecting pipe is screwed into the upper connector and is screwed down to a certain depth of the lower connecting pipe.
Furthermore, the upper interface is in threaded connection with the upper connecting pipe; the lower interface is in threaded connection with the lower connecting pipe; the upper connecting pipe is connected with a floor drain assembly, after the embedded assembly is installed, a waterproof layer and a surface layer which are matched with the embedded assembly are arranged above the structural floor slab, and the lower connecting pipe is connected with a drainage pipeline below the structural floor slab; the opening of the upper connecting pipe is provided with a grate matched with the shape of the upper connecting pipe.
Furthermore, the construction method of the threaded pipeline penetration plate assembly comprises the following steps,
step a, when a floor slab is prefabricated, pre-burying the waterproof sleeve at the position of a pipeline in advance;
b, when the pipeline is installed, firstly, the lower connecting pipe is screwed into the lower connector, threads are arranged inside and outside the upper section of the lower connecting pipe, and the outer diameter and the outer threads of the lower connecting pipe are matched with the inner diameter and the inner threads of the lower connector;
c, screwing the upper connecting pipe into the upper interface until the upper connecting pipe is screwed down to a certain depth of the lower connecting pipe;
and d, after the upper connecting pipe and the lower connecting pipe are constructed, connecting the upper connecting pipe with an upper pipeline and connecting the lower connecting pipe with a lower pipeline to finish the installation of the pipeline.
The threads in the steps are all sealing threads, and sealing filler is added during installation to enhance the sealing and waterproof performance of the pipeline.
Compared with the prior art, the invention provides a threaded pipeline plate penetrating component and a construction method, and the threaded pipeline plate penetrating component has the following beneficial effects:
1. in the prior art, the upper pipe and the lower pipe are connected together through sleeve threads in other fields, but the invention relates to the field of a leakage-proof structure of building engineering, in particular to the arrangement of a pre-buried connecting pipe during floor slab pouring, and through the improvement on the shape of a waterproof wing ring, on one hand, the connecting pipe can be better fixed at the specific position of the floor slab, and on the other hand, water can be effectively prevented from leaking from the upper surface to the lower surface of the floor slab;
2. in the invention, threads are arranged inside and outside the upper section of the lower connecting pipe, the outer diameter and the outer thread of the lower connecting pipe are matched with the inner diameter and the inner thread of the lower connector, and the upper connecting pipe is screwed into the upper connector and is screwed down to a certain depth of the lower connecting pipe. According to the arrangement, on one hand, the upper connecting pipe and the lower connecting pipe are connected without arranging a sleeve, on the other hand, the lower connecting pipe is also in threaded connection with the sleeve, so that water on the upper surface of the floor slab is prevented from permeating to the lower surface along a pipeline gap, and the permeation prevention performance of the embedded pipeline is greatly improved;
3. all related threads are sealed threads, and sealing filler is added during installation to enhance the sealing and waterproof performance of the pipeline, when the pipeline passes through the floor slab by adopting the method, the floor slab can be used as a fulcrum of the pipeline, and no additional fulcrum is needed, so that the installation cost of the pipeline is greatly saved;
4. the upper connecting pipe and the lower connecting pipe are directly in threaded connection with the sleeve, so that the upper connecting pipe and the lower connecting pipe are easy to replace or convenient to remove, and the damage of the upper connecting pipe and the lower connecting pipe and the damage of the pre-embedded sleeve of the floor slab during the removing or replacing process are avoided, which is not beneficial to the recycling of the plate penetrating assembly.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
fig. 2 is a schematic view of the overall structure of embodiment 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is described in detail below with reference to fig. 1, the threaded pipe threading plate assembly of the invention includes an upper connection pipe 1, a lower connection pipe 2 and an embedded waterproof sleeve 3, the embedded waterproof sleeve 3 is divided into three parts, the middle part is a waterproof wing ring 3.2, the upper section is a cylindrical upper connector 3.1, the lower section is a cylindrical lower connector 3.3, the upper connector 3.1 and the lower connector 3.3 are both provided with internal threads and are fixedly connected through the waterproof wing ring 3.2; the upper connector 3.1 and the waterproof wing ring 3.2 are connected in a symmetrical L shape; the top end of the lower connector 3.3 is connected with the waterproof wing ring 3.2, and the inner diameter of the upper connector 3.1 is smaller than that of the lower connector 3.3; the embedded waterproof sleeves 3.2 are embedded and fixed in the floor slab conveniently.
The upper connecting pipe 1 is of equal diameter, and the lower connecting pipe 2 is of variable diameter; the lower connecting pipe 2 is screwed into the lower connector 3.3, threads are arranged inside and outside the upper section of the lower connecting pipe 2, and the outer diameter and the outer threads of the lower connecting pipe 2 are matched with the inner diameter and the inner threads of the lower connector 3.3; the upper connecting pipe 1 is screwed into the upper connector 3.1 and is screwed down to a certain depth of the lower connecting pipe 2.
The upper connector 3.1 is in threaded connection with the upper connecting pipe 1; the lower connector 3.3 is in threaded connection with the lower connecting pipe 2; after the embedded components are installed, a waterproof layer and a surface layer are arranged above the structural floor slab 6, and the lower end of the lower connecting pipe 2 is connected with the drainage pipeline 4 in an equal-diameter mode below the structural floor slab; the opening of the upper connecting pipe 1 is provided with a grate 5 matched with the shape of the upper connecting pipe.
The invention also discloses a construction method of the threaded pipeline plate penetrating component, which comprises the following steps,
step a, when a floor slab is prefabricated, pre-burying the waterproof sleeve at the position of a pipeline;
b, when the pipeline is installed, firstly, the lower connecting pipe is screwed into the lower connector, threads are arranged inside and outside the upper section of the lower connecting pipe, and the outer diameter and the outer threads of the lower connecting pipe are matched with the inner diameter and the inner threads of the lower connector;
c, screwing the upper connecting pipe into the upper interface until the upper connecting pipe is screwed down to a certain depth of the lower connecting pipe;
and d, after the upper connecting pipe and the lower connecting pipe are constructed, connecting the upper connecting pipe with an upper pipeline and connecting the lower connecting pipe with a lower pipeline to finish the installation of the pipeline.
The threads in the steps are all sealing threads, and sealing filler is added during installation to enhance the sealing and waterproof performance of the pipeline.
The invention is described in detail below with reference to fig. 2, the threaded pipe threading plate assembly of the invention includes an upper connection pipe 1, a lower connection pipe 2 and an embedded waterproof sleeve 3, the embedded waterproof sleeve 3 is divided into three parts, the middle part is a waterproof wing ring 3.2, the upper section is a cylindrical upper connector 3.1, the lower section is a cylindrical lower connector 3.3, the upper connector 3.1 and the lower connector 3.3 are both provided with internal threads and are fixedly connected through the waterproof wing ring 3.2; the upper connector 3.1 and the waterproof wing ring 3.2 are connected in a symmetrical L shape; the top end of the lower connector 3.3 is connected with the waterproof wing ring 3.2, and the inner diameter of the upper connector 3.1 is smaller than that of the lower connector 3.3; the embedded waterproof sleeves 3.2 are embedded and fixed in the floor slab conveniently.
The upper connecting pipe 1 is of equal diameter, and the lower connecting pipe 2 is of variable diameter; the lower connecting pipe 2 is screwed into the lower connector 3.3, threads are arranged inside and outside the upper section of the lower connecting pipe 2, and the outer diameter and the outer threads of the lower connecting pipe 2 are matched with the inner diameter and the inner threads of the lower connector 3.3; the upper connecting pipe 1 is screwed into the upper connector 3.1 and is screwed down to a certain depth of the lower connecting pipe 2; the lower end of the lower connecting pipe 2 is connected with a drainage pipeline 4 in a diameter-variable mode.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a board subassembly is worn to screw thread formula pipeline, includes that last takeover, pre-buried waterproof sleeve reach takeover down, its characterized in that, pre-buried waterproof sleeve divide into the triplex, and the centre is waterproof wing ring, and the upper segment is cylindric upper connector, and the hypomere is cylindric lower connector, the internal thread is all established with lower connector to the upper connector, and passes through waterproof wing ring fixed connection.
2. The threaded pipe threading plate assembly of claim 1, wherein said upper port is integrally formed or seal welded with said waterproof wing ring; the lower connector is integrally formed or welded in a sealing mode with the waterproof wing ring, the inner diameter of the upper connector is smaller than that of the lower connector, the upper connector is symmetrical to the waterproof wing ring in an L shape, and the embedded waterproof sleeve is embedded and fixed in the floor slab.
3. The threaded pipe threading plate assembly of claim 1, wherein said upper nipple is of constant diameter and said lower nipple is of variable diameter; the lower connecting pipe is screwed into the lower connector, threads are arranged on the inner and outer parts of the upper section of the lower connecting pipe, and the outer diameter and the outer thread of the lower connecting pipe are matched with the inner diameter and the inner thread of the lower connector; the upper connecting pipe is screwed into the upper connector and is screwed down to a certain depth of the lower connecting pipe.
4. The threaded pipe threading assembly of claim 3, wherein said upper port is threadedly connected to said upper nipple; the lower interface is in threaded connection with the lower connecting pipe.
5. The threaded pipe threading plate assembly of claim 1, wherein said upper nipple is connected to a floor drain assembly.
6. The threaded pipe threading assembly of claim 5, wherein after installation of the threading assembly, a waterproof layer and a facing layer are provided above the structural floor to match the threading assembly, and the lower connecting pipe and the drainage pipe are connected below the structural floor.
7. The threaded pipe-penetrating plate assembly according to claim 6, wherein a grate matching the shape of the opening of the floor drain assembly is arranged at the opening of the floor drain assembly.
8. A method of constructing a threaded pipe threading assembly as claimed in any one of claims 1 to 7 including the steps of,
step a, when the concrete of the floor slab is poured, pre-burying the waterproof sleeve at the position of a pipeline in advance;
b, when the pipeline is installed, firstly, the lower connecting pipe is screwed into the lower connector, threads are arranged inside and outside the upper section of the lower connecting pipe, and the outer diameter and the outer threads of the lower connecting pipe are matched with the inner diameter and the inner threads of the lower connector;
c, screwing the upper connecting pipe into the upper interface until the upper connecting pipe is screwed down to a certain depth of the lower connecting pipe;
and d, after the upper connecting pipe and the lower connecting pipe are constructed, connecting the upper connecting pipe with an upper pipeline and connecting the lower connecting pipe with a lower pipeline to finish the installation of the pipeline.
9. The construction method according to claim 8, wherein the threads in the above steps are sealing threads, and sealing filler is added to enhance the sealing and waterproof performance of the pipeline during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210776774.8A CN114909524B (en) | 2022-07-04 | 2022-07-04 | Threaded pipeline plate penetrating assembly and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210776774.8A CN114909524B (en) | 2022-07-04 | 2022-07-04 | Threaded pipeline plate penetrating assembly and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114909524A true CN114909524A (en) | 2022-08-16 |
| CN114909524B CN114909524B (en) | 2023-03-21 |
Family
ID=82772084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210776774.8A Active CN114909524B (en) | 2022-07-04 | 2022-07-04 | Threaded pipeline plate penetrating assembly and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114909524B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006017388A (en) * | 2004-07-02 | 2006-01-19 | Sanki Eng Co Ltd | Sleeve, and connecting structure of duct |
| CN201245871Y (en) * | 2008-07-11 | 2009-05-27 | 胡志国 | Pipe fitting joint matching apparatus for constructing discharge pipeline in cast-in-situ floor layer |
| CN207796289U (en) * | 2017-12-05 | 2018-08-31 | 重庆双为科技有限公司 | A kind of pre-buried type water-seal piecing devices |
| CN110594494A (en) * | 2019-10-22 | 2019-12-20 | 中国建筑第七工程局有限公司 | Threaded pipeline embedded ring and embedding method |
| CN110822180A (en) * | 2019-12-05 | 2020-02-21 | 深圳市卓宝科技股份有限公司 | Wall pipe assembly |
| EP3633112A1 (en) * | 2018-10-01 | 2020-04-08 | Viega Technology GmbH & Co. KG | Sealing set and method for sealing a water line in the area of a wall feedthrough to be produced and use of such a sealing set |
| CN212156084U (en) * | 2020-03-02 | 2020-12-15 | 陆国华 | Pre-buried antiseep PVC drainage sleeve |
| CN214699599U (en) * | 2021-01-11 | 2021-11-12 | 福建榕圣智造科技有限公司 | Short pipe with tooth-shaped interface for pipeline repair |
-
2022
- 2022-07-04 CN CN202210776774.8A patent/CN114909524B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006017388A (en) * | 2004-07-02 | 2006-01-19 | Sanki Eng Co Ltd | Sleeve, and connecting structure of duct |
| CN201245871Y (en) * | 2008-07-11 | 2009-05-27 | 胡志国 | Pipe fitting joint matching apparatus for constructing discharge pipeline in cast-in-situ floor layer |
| CN207796289U (en) * | 2017-12-05 | 2018-08-31 | 重庆双为科技有限公司 | A kind of pre-buried type water-seal piecing devices |
| EP3633112A1 (en) * | 2018-10-01 | 2020-04-08 | Viega Technology GmbH & Co. KG | Sealing set and method for sealing a water line in the area of a wall feedthrough to be produced and use of such a sealing set |
| CN110594494A (en) * | 2019-10-22 | 2019-12-20 | 中国建筑第七工程局有限公司 | Threaded pipeline embedded ring and embedding method |
| CN110822180A (en) * | 2019-12-05 | 2020-02-21 | 深圳市卓宝科技股份有限公司 | Wall pipe assembly |
| CN212156084U (en) * | 2020-03-02 | 2020-12-15 | 陆国华 | Pre-buried antiseep PVC drainage sleeve |
| CN214699599U (en) * | 2021-01-11 | 2021-11-12 | 福建榕圣智造科技有限公司 | Short pipe with tooth-shaped interface for pipeline repair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114909524B (en) | 2023-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2801923Y (en) | Concrete built-in anti-leakage special casing pipe | |
| CN201778366U (en) | Sinking-type leak-proof system for toilet | |
| CN114909524B (en) | Threaded pipeline plate penetrating assembly and construction method | |
| CN201195867Y (en) | Anti-water leakage floor drain | |
| CN203891185U (en) | Anti-seepage water-receiving floor drain | |
| CN106437841B (en) | It is a kind of can antiseep railway tunnel draining blind pipe and its construction method | |
| CN212004759U (en) | Inside leaking stoppage outside slip casting construction equipment of sewer line | |
| CN204677907U (en) | The removable crossing cabin part of lubricating oil circulating tank | |
| CN208619897U (en) | A kind of drainage pipeline connection structure | |
| CN218911481U (en) | Raft foundation dewatering well plugging device | |
| CN220080551U (en) | Building roof drainage structure | |
| CN112628477A (en) | Drain pipe pre-embedding device with stretching and water drainage preventing functions and installation method | |
| KR101069882B1 (en) | Manhole having pipe connection part to prevent roadsink and water sealing | |
| CN217874579U (en) | Pipe edge leakage-proof water stop joint | |
| CN211228095U (en) | Anticreep formula bridge outlet pipe mounting structure | |
| CN206409756U (en) | A kind of urban planning municipal drainage pipeline | |
| CN212745420U (en) | Anti-seepage device for water supply and drainage pipes in building engineering | |
| CN220377465U (en) | Protection structure of drainage pipeline joint | |
| CN216041263U (en) | Plugging device for steel cover plate of dewatering well | |
| CN215290214U (en) | Plugging structure for bottom plate penetrating dewatering pipe well | |
| CN212616797U (en) | Wall-penetrating pipeline with water seepage prevention function | |
| CN202188237U (en) | Novel water stopping joint | |
| CN216479349U (en) | A leak protection water work tube structure for floor is worn to pipeline | |
| CN214220673U (en) | Energy-conserving curing means is used in construction | |
| CN217874657U (en) | Connecting structure of municipal large-caliber drainage pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |