CN222479809U - Steel-plastic composite pipeline connecting device - Google Patents
Steel-plastic composite pipeline connecting device Download PDFInfo
- Publication number
- CN222479809U CN222479809U CN202420891060.6U CN202420891060U CN222479809U CN 222479809 U CN222479809 U CN 222479809U CN 202420891060 U CN202420891060 U CN 202420891060U CN 222479809 U CN222479809 U CN 222479809U
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- CN
- China
- Prior art keywords
- steel
- pipe fitting
- plastic composite
- heating wire
- electric
- 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.)
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- 229920003023 plastic Polymers 0.000 title claims abstract description 100
- 239000004033 plastic Substances 0.000 title claims abstract description 100
- 239000002131 composite material Substances 0.000 title claims abstract description 66
- 239000012943 hotmelt Substances 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 238000005485 electric heating Methods 0.000 claims description 34
- 238000002844 melting Methods 0.000 abstract description 44
- 230000008018 melting Effects 0.000 abstract description 40
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 230000004927 fusion Effects 0.000 abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 polyethylene (propylene) Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model provides a composite pipe connecting device is moulded to steel, includes the metal level, and both sides all compound in the metal level have the plastic pipeline layer to form first steel jointly and mould the composite pipe, and interior Zhou Tongguo second heating wire butt fusion second electric hot melt pipe fitting is moulded to first steel, and first steel is moulded the axial terminal surface cooperation of composite pipe has first plastics bulge loop, and first plastics bulge loop and first steel mould the first electric hot melt pipe fitting of composite pipe outer circumference joint through first heating wire butt fusion, first heating wire is installed in first electric hot melt pipe fitting inner wall, the second heating wire is installed in second electric hot melt pipe fitting outer wall. This kind of steel is moulded compound pipeline connecting device is through all through heating wire butt fusion electric heat melting pipe fitting in steel is moulded compound intraductal inside and outside both sides, avoids steam contact metal level, and further adopts plastics bulge loop to avoid naked metal level axial terminal surface to rust through butt fusion sealed steel is moulded compound pipe axial terminal surface.
Description
Technical Field
The utility model relates to the field of steel-plastic composite pipelines, in particular to a steel-plastic composite pipeline connecting device.
Background
The steel-plastic composite pressure pipe is a novel metal and plastic composite pipe developed in recent years, a welded steel pipe is used as an intermediate layer, the inner layer and the outer layer are made of polyethylene (propylene) plastic, and a special hot melt adhesive is adopted to be compounded into an integral pipe through an extrusion molding method. Compared with plastic pipe, the plastic pipe has the features of high bearing pressure, high impact resistance, etc. and has the advantages of smooth inner wall, high chemical resistance, no pollution, low fluid resistance, no scaling, no microbe breeding, no secondary pollution to fluid, etc. and the service life is as long as 50 years. The pipe overcomes the defects of easy corrosion, pollution, heavy weight, short service life, low strength, large expansion and easy deformation of the plastic pipe, and has the common advantages of the steel pipe and the plastic pipe, such as good oxygen isolation, higher rigidity and strength, easy detection of buried pipes, and the like.
At present, the connection mode of steel-plastic composite pipes in the market mainly comprises mechanical connection and double hot melt transition socket connection.
Chinese patent publication No. CN206310117U discloses an electromagnetic hot-melt pipe fitting, one end of the bell and spigot is connected with the PSP steel-plastic composite pipe by electromagnetic double hot-melt, the other end is connected with the PPR pure plastic fitting by single hot-melt socket, and the connection between the PSP steel-plastic composite pipe and the PPR pure plastic fitting is realized by the electromagnetic hot-melt pipe fitting. The pipe fitting and the pipe are made of the same material, and are subjected to double-layer hot melt sealing in a socket joint mode. The electromagnetic double-hot-melting connection of the electromagnetic hot-melting pipe fitting is characterized in that the electromagnetic double-hot-melting connection is realized by heating the inner surface and the outer surface of the PSP steel-plastic composite pipe and then melting the double-hot-melting connection ends of the PSP steel-plastic composite pipe while the PSP steel-plastic composite pipe is in a melting state, and the welding method realizes the welding of the inner surface and the outer surface of the steel-plastic composite pipe, but adopts splicing welding on one hand, the welding performance is unstable, and on the other hand, the end surface of the steel-plastic composite pipe cannot be heated due to no heating, namely is not sealed, finally rust and rot are caused, and the heating mode is not suitable for urban building pipelines due to the need of using a heating die.
For the prior art, the technical personnel in the field study how to realize good sealing and rust-proof connection performance of the steel-plastic composite pipe in the urban building pipeline connection process.
Disclosure of utility model
The utility model aims to overcome the defects and shortcomings of the prior art and provide the steel-plastic composite pipeline connecting device which is simple in structure, convenient to construct and suitable for urban building pipelines with different diameters.
In order to achieve the above purpose, the utility model provides a steel-plastic composite pipeline connecting device, which comprises a metal layer, wherein plastic pipeline layers are compounded on the inner side and the outer side of the metal layer to form a first steel-plastic composite pipe together, the inner circle Zhou Tongguo of the first steel-plastic composite pipe is welded with a second electric-heat melting pipe fitting, the axial end face of the first steel-plastic composite pipe is matched with a first plastic convex ring, the first plastic convex ring and the outer circumference of the first steel-plastic composite pipe are welded with a first electric-heat melting pipe fitting together through a first electric heating wire, the first electric heating wire is arranged on the inner wall of the first electric-heat melting pipe fitting, the second electric heating wire is arranged on the outer wall of the second electric-heat melting pipe fitting, the first steel-plastic composite pipe fitting, the second electric-heat melting pipe fitting, the first electric-heat melting pipe fitting and the first plastic convex ring mutually surround to form a closed cavity, and the closed cavity is finally melted and filled with the closed cavity through the first plastic convex ring under the heating action of the first electric heating wire, and the axial end face of the exposed metal layer is closed. According to the utility model, the water seepage and the decay are prevented by forming the sealed cavity with the opposite metal layers on the inner side surface, the outer side surface and the end surface of the first steel-plastic composite pipe, and the sealed cavity is filled by melting the part of the first plastic convex ring, so that the anti-rust effect is further improved. The metal layer is typically made of steel or iron wire.
The first plastic convex ring and the second electric hot melting pipe fitting are integrally formed, the outer circle diameter of the first plastic convex ring is the same as that of the first steel-plastic composite pipe, and the welding stability and the connection sealing performance between parts in the hot melting process are ensured.
One axial end of the first electric heating melting pipe fitting is welded with the first steel-plastic composite pipe, and the other axial end of the first electric heating melting pipe fitting is welded with the second steel-plastic composite pipe, so that the technical performance of bidirectional connection is formed.
The second steel is moulded compound pipe inner circumference and is passed through third heating wire butt fusion third electric heat pipe fitting, and compound pipe axial terminal surface is moulded to the second steel is fitted with the second plastics bulge loop, and second plastics bulge loop and second steel are moulded compound pipe outer circumference and are passed through first electric heat pipe fitting of fourth heating wire butt fusion jointly, the third heating wire is installed in third electric heat pipe fitting outer wall, the fourth heating wire is installed in first electric heat pipe fitting inner wall, realizes from this to the rust-resistant function of second steel mould compound intraductal metal level.
The first inner wall of the second electric hot melting pipe fitting is provided with a first protruding connecting column, the first connecting column is connected with the second electric heating wire on the outer wall of the second electric hot melting pipe fitting, and hot melting connection is achieved on the second electric hot melting pipe fitting and the first steel-plastic composite pipe connected with the second electric hot melting pipe fitting.
The second inner wall of the third electric hot melting pipe fitting is provided with a convex second connecting column, the second connecting column is connected with a third heating wire on the outer wall of the third electric hot melting pipe fitting, and hot melting connection is realized for the third electric hot melting pipe fitting and a second steel-plastic composite pipe connected with the third electric hot melting pipe fitting.
By adopting the technical scheme, the steel-plastic composite pipeline connecting device is characterized in that the electric heating wire is welded on the inner side and the outer side of the steel-plastic composite pipe to form an electric heating melting pipe fitting, so that water vapor is prevented from contacting with the metal layer, and the plastic convex ring is further adopted to seal the axial end face of the steel-plastic composite pipe through welding to prevent the exposed axial end face of the metal layer from rusting.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a three-dimensional installation structure of a steel-plastic composite pipeline in a steel-plastic composite pipeline connecting device;
FIG. 2 is a schematic view of a third electric hot melting pipe fitting according to the present utility model;
FIG. 3 is a schematic view of a third hot-melt tube and a first hot-melt tube according to the present utility model;
Fig. 4 is a schematic diagram of a connection structure between a third electric melting pipe and a fourth electric heating wire in the present utility model;
FIG. 5 is a schematic view of a second electric hot melting pipe fitting according to the present utility model;
Fig. 6 is a schematic diagram of a connection structure between a second electric heating tube and a first heating wire in the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
As shown in fig. 1-6, the utility model provides a steel-plastic composite pipeline connecting device, which comprises a metal layer 15, wherein plastic pipeline layers are composited on the inner side and the outer side of the metal layer 15 to form a first steel-plastic composite pipe 3 together, an inner circle Zhou Tongguo of the first steel-plastic composite pipe 3 and a second electric heating wire 14 are welded to a second electric melting pipe 13, a first plastic convex ring 16 is matched with the axial end face of the first steel-plastic composite pipe 3, the first plastic convex ring 16 and the outer circumference of the first steel-plastic composite pipe 3 are welded to a first electric melting pipe 2 together through a first electric heating wire 17, the first electric heating wire 17 is arranged on the inner wall of the first electric melting pipe 2, the second electric heating wire 14 is arranged on the outer wall of the second electric melting pipe 13, the first steel-plastic composite pipe 3, the second electric melting pipe 13 and the first electric melting pipe 2 are mutually surrounded to form a closed cavity, and the closed cavity is finally melted and filled by the first plastic convex ring 16 under the heating action of the first electric heating wire 17, and the exposed metal layer 15 is axially end face.
As the first plastic convex ring 16 and the second electric melting pipe fitting 13 are preferably formed integrally, the diameter of the outer circle of the first plastic convex ring 16 is the same as that of the outer circle of the first steel-plastic composite pipe 3, so that the welding performance of the first plastic convex ring 16 and the steel-plastic composite pipe 3 is improved, and the exposed metal layer 15 is jointly melted and sealed on the axial end face.
In order to realize the bidirectional connection, one axial end of the first electric heating melting pipe fitting 2 is welded with the first steel-plastic composite pipe 3, and the other axial end is welded with the second steel-plastic composite pipe 1. The inner circumference of the second steel-plastic composite pipe 1 is welded with a third electric-heating welding pipe fitting 6 through a third electric heating wire 10, the axial end face of the second steel-plastic composite pipe 1 is matched with a second plastic convex ring 7, the second plastic convex ring 7 and the outer circumference of the second steel-plastic composite pipe 1 are jointly welded with a first electric-heating welding pipe fitting 2 through a fourth electric heating wire 12, the third electric heating wire 10 is arranged on the outer wall of the third electric-heating welding pipe fitting 6, and the fourth electric heating wire 12 is arranged on the inner wall of the first electric-heating welding pipe fitting 2.
In order to further improve the hot melting effect, the first inner wall 5 of the second electric melting pipe fitting 13 is provided with a first protruding connecting column 4, and the first connecting column 4 is connected with the second electric heating wire 14 on the outer wall of the second electric melting pipe fitting 13. The second inner wall 9 of the third electric melting pipe fitting 6 is provided with a convex second connecting column 8, and the second connecting column 8 is connected with a third heating wire 10 on the outer wall of the third electric melting pipe fitting 6.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420891060.6U CN222479809U (en) | 2024-04-26 | 2024-04-26 | Steel-plastic composite pipeline connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420891060.6U CN222479809U (en) | 2024-04-26 | 2024-04-26 | Steel-plastic composite pipeline connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222479809U true CN222479809U (en) | 2025-02-14 |
Family
ID=94499107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420891060.6U Active CN222479809U (en) | 2024-04-26 | 2024-04-26 | Steel-plastic composite pipeline connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222479809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118188923A (en) * | 2024-04-26 | 2024-06-14 | 融胜管道科技(浙江)有限公司 | Steel-plastic composite pipeline connecting method for sealing and repairing construction site |
-
2024
- 2024-04-26 CN CN202420891060.6U patent/CN222479809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118188923A (en) * | 2024-04-26 | 2024-06-14 | 融胜管道科技(浙江)有限公司 | Steel-plastic composite pipeline connecting method for sealing and repairing construction site |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |