CN209876177U - Water supply and drainage internal and external plastic-coated composite steel pipe - Google Patents
Water supply and drainage internal and external plastic-coated composite steel pipe Download PDFInfo
- Publication number
- CN209876177U CN209876177U CN201920481766.4U CN201920481766U CN209876177U CN 209876177 U CN209876177 U CN 209876177U CN 201920481766 U CN201920481766 U CN 201920481766U CN 209876177 U CN209876177 U CN 209876177U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- sleeve joint
- pipe body
- water supply
- coated
- 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.)
- Active
Links
Abstract
The utility model discloses a water supply and drainage internal and external plastic-coated composite steel pipe, which comprises a steel pipe body; a first sleeve joint and a second sleeve joint are respectively arranged at two ends of the steel pipe body; the lengths of the first set of connectors and the second set of connectors are matched; the outer diameter of the first sleeve joint is consistent with the outer diameter of the steel pipe body, and the inner diameter of the first sleeve joint is larger than the inner diameter of the steel pipe body; the inner diameter of the second set of joints is consistent with the inner diameter of the steel pipe body, and the outer diameter of the second set of joints is smaller than the outer diameter of the steel pipe body and is matched with the inner diameter of the first set of joints; a first flange plate is arranged at a port of the first sleeve joint; a second flange plate is arranged at the joint of the second sleeve joint and the steel pipe body; and protective layers are coated on the inner surface and the outer surface of the steel pipe. The inside and outside plastic-coated composite steel pipe of plumbing has advantages such as connect portably, firm, connect the leakproofness good, corrosion resisting property is good.
Description
Technical Field
The utility model relates to a water supply and drainage pipeline technical field especially relates to a compound steel pipe of plastic-coated inside and outside water supply and drainage.
Background
The water supply and drainage pipeline is mainly applied to water supply and drainage pipe networks of civil buildings, factories and the like, and the water supply and drainage pipeline mainly comprises steel pipes, galvanized pipes, pure plastic pipes (including PVC, PP, PPR, PE and the like), cast iron pipes, cement pipes and the like at present. However, the above pipes have certain disadvantages. For example, the cost of the steel pipe is high and the corrosion resistance is poor; the galvanized pipe has poor corrosion resistance, poor durability and short service life; the leakage rate of the cement pipe is high, and environmental pollution is easily caused; the pure plastic pipe has low strength and is easy to damage; cast iron pipes are high in cost and leakage rate. Meanwhile, the existing water supply and drainage pipelines are inconvenient to connect, and the connection firmness degree and the connection tightness are required to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connect simple and convenient, firm, connect the leakproofness good, the compound steel pipe of plastic-coated inside and outside plumbing that corrosion resisting property is good.
In order to realize the above object, the technical scheme of the utility model is that:
a water supply and drainage internal and external plastic-coated composite steel pipe comprises a steel pipe body; a first sleeve joint and a second sleeve joint are respectively arranged at two ends of the steel pipe body; the lengths of the first set of connectors and the second set of connectors are matched; the outer diameter of the first sleeve joint is consistent with the outer diameter of the steel pipe body, and the inner diameter of the first sleeve joint is larger than the inner diameter of the steel pipe body; the inner diameter of the second set of joints is consistent with the inner diameter of the steel pipe body, and the outer diameter of the second set of joints is smaller than the outer diameter of the steel pipe body and is matched with the inner diameter of the first set of joints; a first flange plate is arranged at a port of the first sleeve joint; a second flange plate is arranged at the joint of the second sleeve joint and the steel pipe body; and protective layers are coated on the inner surface and the outer surface of the steel pipe.
Furthermore, the first flange plate is provided with a positioning pin/positioning hole, and the second flange plate is provided with a positioning hole/positioning pin matched with the first flange plate.
Furthermore, the protective layers coated on the inner surface and the outer surface of the steel pipe are epoxy resin layers.
Furthermore, the epoxy resin is coated on the inner surface and the outer surface of the steel pipe in an electrostatic spraying mode.
Furthermore, the thickness of the inner surface epoxy resin layer is 0.4-0.5mm, and the thickness of the outer surface epoxy resin layer is 0.4-0.5 mm.
The utility model has the advantages that: the utility model discloses set up first sleeve joint and second sleeve joint respectively at steel pipe body both ends, set up the ring flange in first sleeve joint and second sleeve joint department, when connecting and installing, after placing the packing ring in the first sleeve joint of first steel pipe, insert the second sleeve joint of second steel pipe, then fix through the first ring flange of first steel pipe and the second ring flange of second steel pipe, connect and install simple and convenient firm; the connection between the steel pipes can have excellent sealing performance through the matched inner diameter of the first connector and the matched outer diameter of the second connector and the matched length of the first connector and the second connector; the inner surface and the outer surface of the pipeline are coated with the protective layers, so that the corrosion resistance of the pipeline can be enhanced.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the steel pipe body of the present invention;
FIG. 3 is a schematic view of steel pipe connection;
description of the figure numbering: 1. the steel pipe body, 2, first cover connect, 3, second cover connect, 4, first ring flange, 5, second ring flange, 6, bolt, 7, internal surface epoxy layer, 8, surface epoxy layer, 9, packing ring, 10, locating pin, 11, locating hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the utility model discloses a water supply and drainage internal and external plastic-coated composite steel pipe, which comprises a steel pipe body 1; a first sleeve joint 2 and a second sleeve joint 3 are respectively arranged at two ends of the steel pipe body 1; the length of the first set of joints 2 matches the length of the second set of joints 3; the outer diameter of the first sleeve joint 2 is consistent with the outer diameter of the steel pipe body 1, and the inner diameter of the first sleeve joint is larger than the inner diameter of the steel pipe body 1; the inner diameter of the second sleeve joint 3 is consistent with that of the steel pipe body 1, the outer diameter of the second sleeve joint is smaller than that of the steel pipe body 1, and the second sleeve joint is matched with that of the first sleeve joint 2; a first flange plate 4 is arranged at a port of the first sleeve joint 2; a second flange 5 is arranged at the joint of the second sleeve joint 3 and the steel pipe body 1; and protective layers are coated on the inner surface and the outer surface of the steel pipe.
The two ends of the steel pipe body 1 are respectively provided with a first sleeve joint 2 and a second sleeve joint 3, flange plates are arranged at the first sleeve joint 2 and the second sleeve joint 3, when the steel pipe body is connected and installed, after a gasket 9 is placed in the first sleeve joint 2 of a first steel pipe, the second sleeve joint 3 of a second steel pipe is inserted, and then the first flange plate 4 of the first steel pipe and the second flange plate 5 of the second steel pipe are used for fixing, so that the connection and installation are simple, convenient and firm, and meanwhile, the connection between the steel pipes can have excellent sealing performance through the matched first connector inner diameter and second connector outer diameter, and the matched first connector length and second connector length; the inner surface and the outer surface of the pipeline are coated with the protective layers, so that the corrosion resistance of the pipeline can be enhanced.
When the first flange plate 4 and the second flange plate 5 are fixed through the bolts 6, the fixing holes between the two flange plates are not easy to align, in order to make the installation more convenient, the first flange plate 4 is provided with the positioning pin 10/positioning hole 11, the second flange plate 5 is provided with the matched positioning hole 11/positioning pin 10, and the fixing holes of the first flange plate 4 and the second flange plate 5 can be easily aligned through the positioning pin 10 and the positioning hole 11.
The coating protective layer on the inner surface and the outer surface of the steel pipe can be any protective layer capable of improving the anti-corrosion performance, the anti-corrosion performance and the microorganism growth inhibition performance of the pipeline, preferably an epoxy resin layer, and the pipeline coated with the epoxy resin protective layer has excellent anti-corrosion performance, anti-corrosion performance and microorganism growth inhibition performance.
The epoxy resin may be coated on the inner and outer surfaces of the pipe by any possible means, and is preferably applied on the inner and outer surfaces of the steel pipe by electrostatic spraying in order to uniformly and closely coat the epoxy resin on the inner and outer surfaces of the pipe.
The thickness of the epoxy resin layer directly influences the overall performance and cost of the pipeline, and if the coating layer is too thick, on one hand, the effective inner diameter of the pipeline is reduced, the loading capacity of the pipeline is reduced, and on the other hand, the cost is increased; if the coating layer is too thin, the performance of the plastic-coated steel pipe cannot be guaranteed, and the thickness of the inner surface epoxy resin layer 7 is selected to be 0.4-0.5mm and the thickness of the outer surface epoxy resin layer 8 is selected to be 0.4-0.5mm in comprehensive consideration, under the condition, the performances of corrosion prevention, corrosion prevention and microorganism growth inhibition of the pipeline can be guaranteed, and the cost can also be controlled.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The water supply and drainage internal and external plastic-coated composite steel pipe is characterized by comprising a steel pipe body; a first sleeve joint and a second sleeve joint are respectively arranged at two ends of the steel pipe body; the lengths of the first set of connectors and the second set of connectors are matched; the outer diameter of the first sleeve joint is consistent with the outer diameter of the steel pipe body, and the inner diameter of the first sleeve joint is larger than the inner diameter of the steel pipe body; the inner diameter of the second set of joints is consistent with the inner diameter of the steel pipe body, and the outer diameter of the second set of joints is smaller than the outer diameter of the steel pipe body and is matched with the inner diameter of the first set of joints; a first flange plate is arranged at a port of the first sleeve joint; a second flange plate is arranged at the joint of the second sleeve joint and the steel pipe body; and protective layers are coated on the inner surface and the outer surface of the steel pipe.
2. The water supply and drainage inner and outer plastic-coated composite steel pipe as claimed in claim 1, wherein the first flange is provided with positioning pins/positioning holes, and the second flange is provided with positioning holes/positioning pins matched with the first flange.
3. The water supply and drainage inner and outer plastic-coated composite steel pipe as claimed in claim 1, wherein the protective layer coated on the inner and outer surfaces of the steel pipe is an epoxy resin layer.
4. The water supply and drainage inner-outer plastic-coated composite steel pipe as claimed in claim 3, wherein the epoxy resin is coated on the inner and outer surfaces of the steel pipe by electrostatic spraying.
5. The water supply and drainage inner and outer plastic-coated composite steel pipe as claimed in claim 3, wherein the thickness of the inner surface epoxy resin layer is 0.4-0.5mm, and the thickness of the outer surface epoxy resin layer is 0.4-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481766.4U CN209876177U (en) | 2019-04-10 | 2019-04-10 | Water supply and drainage internal and external plastic-coated composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920481766.4U CN209876177U (en) | 2019-04-10 | 2019-04-10 | Water supply and drainage internal and external plastic-coated composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209876177U true CN209876177U (en) | 2019-12-31 |
Family
ID=68959302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920481766.4U Active CN209876177U (en) | 2019-04-10 | 2019-04-10 | Water supply and drainage internal and external plastic-coated composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209876177U (en) |
-
2019
- 2019-04-10 CN CN201920481766.4U patent/CN209876177U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211175693U (en) | Wall-through water pipe waterproof system for tap water | |
| CN213394010U (en) | Water supply is waterproof connection structure of pipeline for unit | |
| CN209876177U (en) | Water supply and drainage internal and external plastic-coated composite steel pipe | |
| CN211901864U (en) | Wall-penetrating pipeline waterproof device for building construction | |
| CN202442028U (en) | Groove connection structure for fire protection pipelines | |
| CN208793816U (en) | A kind of Prestressed concrete cylinder pipe and matched sealing ring | |
| CN204004911U (en) | A kind of half waveform pipe hoop structure connecting for corrugated steel culvert | |
| CN206093262U (en) | Sealed feedwater socket joint formula welding steel pipe of T type rubber ring | |
| CN215950790U (en) | Protective structure of natural gas transportation pipeline link | |
| CN218599090U (en) | Embedded prestressed steel cylinder concrete pipe | |
| CN111006078A (en) | Novel steel cylinder concrete pipe | |
| CN202914913U (en) | Socket welding type dual-link connector | |
| CN205689926U (en) | A kind of plastic-coated steel with adpting flange | |
| CN218441286U (en) | Socket joint of prestressed steel cylinder concrete pipe | |
| CN210687294U (en) | Be used for floor blowdown with anticorrosive PVC pipe | |
| CN220416480U (en) | Prestressed steel cylinder concrete pipe with hot galvanizing prestressed steel wire | |
| CN219432786U (en) | Water supply pipe with strong weather resistance | |
| CN218761983U (en) | Socket joint formula plastic-coated steel pipe | |
| CN212657377U (en) | Municipal administration drainage is with anticorrosion transport pipe way | |
| CN209762556U (en) | Lining type corrosion prevention device with reinforcing structure | |
| CN219866692U (en) | Fireproof glass fiber reinforced plastic pipeline | |
| CN211501922U (en) | Water supply steel-plastic pipe for water delivery | |
| CN211550785U (en) | Corrosion-resistant plastic-coated pipeline | |
| CN219453148U (en) | Plug-in type inner epoxy coating and outer PE composite steel pipe | |
| CN217603565U (en) | Urban drainage high-strength buried pipe capable of preventing leakage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |