CN207661243U - A kind of high-strength steel mesh framework polyethylene multiple-unit tube - Google Patents
A kind of high-strength steel mesh framework polyethylene multiple-unit tube Download PDFInfo
- Publication number
- CN207661243U CN207661243U CN201721643226.9U CN201721643226U CN207661243U CN 207661243 U CN207661243 U CN 207661243U CN 201721643226 U CN201721643226 U CN 201721643226U CN 207661243 U CN207661243 U CN 207661243U
- Authority
- CN
- China
- Prior art keywords
- pipe
- urethane resin
- plastic
- layer
- resin layer
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
- 239000010959 steel Substances 0.000 title claims abstract description 75
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 34
- 239000004698 Polyethylene (PE) Substances 0.000 title claims abstract description 33
- -1 polyethylene Polymers 0.000 title claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 40
- 239000004033 plastic Substances 0.000 claims abstract description 40
- 229920002803 Thermoplastic polyurethane Polymers 0.000 claims abstract description 38
- 239000011159 matrix material Substances 0.000 claims abstract description 21
- 239000004831 Hot glue Substances 0.000 claims abstract description 8
- 210000002356 Skeleton Anatomy 0.000 claims abstract description 5
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical group data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 13
- 239000004703 cross-linked polyethylene Substances 0.000 description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000005035 ginseng Nutrition 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model provides a kind of high-strength steel mesh framework polyethylene multiple-unit tube,Belong to polyethylene compound pipe technical field,Including pipe matrix,Pipe matrix includes the plastic outer tube that ecto-entad is set gradually,First urethane resin layer,Steel screen layer,Second urethane resin layer and plastic inner pipe,Plastic inner pipe is made of polyethylene with plastic outer tube,Steel screen layer is the Wrapping formed meshy steel wire skeleton of left-and-right spiral,The outside circumferential direction of first urethane resin layer is equipped with several first grooves with pipe matrix axis direction vertical distribution,The first steel band is equipped in first groove,Several the second grooves along pipe matrix axis directional spreding are equipped on the inside of second urethane resin layer,The second steel band is equipped in second groove,Plastic outer tube,First urethane resin layer,Steel screen layer,Second urethane resin layer and plastic inner pipe are included by hot melt adhesive layer integration bonding,The utility model has high intensity,Tear-proof,The characteristics such as wear-resisting,And anti-seismic performance is good,It is safe and reliable.
Description
Technical field
The utility model belongs to polyethylene compound pipe technical field, and in particular to a kind of high-strength steel mesh skeleton for polyethylene
Multiple tube.
Background technology
Polyethylene compound pipe is process with the polyvinyl resin of two kinds of different densities, so raw material there are two types of it is simultaneous
Characteristic, since the resistance to pressure and corrosion resistance of polyethylene compound pipe are more excellent than common polythene pipe, so in industrial and mining enterprises
In, through frequently with this polyethylene compound pipe replace steel pipe, for oil, coal gas etc. be corrosive medium delivery pipe or mine lead to
Air pipe line, but found in long-term practice process, this polyethylene compound pipe still has structural strength deficiency, especially
When being laid with pipeline below road, traditional polyethylene compound pipe easily deforms, or even occurs to occur because deforming seriously
The phenomenon that rupture;Therefore occur a kind of metal reinforced polyethylene compound pipe, this metal mold polyethylene compound pipe in the market
It is by adding steel wire, while the displacement of steel wire in order to prevent, the technique of generally use welding in polyethylene compound pipe
Metal mesh is linked together, actual demand has been achieved the effect that in the polyethylene compound pipe intensity of this structure, but has existed and adds
Work process is complicated, especially when there are the defects that when solder skip, steel wire is easily displaced for steel wire solder joint.
A kind of more performance steel wire framework polyethylene multiple-unit tubes (notification number CN206072571U) of patent include that section is in
It is cyclic annular and be set in together and in axial direction to the internal layer crosslinked polyethylene of both ends indefinite extension and outer layer crosslinked polyethylene, it is interior
Its axial length is integrally bonded between layer crosslinked polyethylene and outer layer crosslinked polyethylene to hand over internal layer crosslinked polyethylene and outer layer
Join the consistent armature bed of material of polyethylene axial length, which is the winding steel wire layer that hot melt adhesive covers ectonexine
It is composite structured.This more performance steel wire framework polyethylene multiple-unit tube compares common polyethylene compound pipe with certain more preferable
Wearability, it is resistance to the performances such as to draw, but cannot still meet the use occasion of the polyethylene compound pipe required in some high intensity
Lower use.
Therefore being badly in need of one kind having the characteristics such as high intensity, tear-proof, wear-resisting, and anti-seismic performance is good, safe and reliable
High-strength steel mesh framework polyethylene multiple-unit tube.
Utility model content
The purpose of this utility model is to provide a kind of high-strength steel mesh framework polyethylene multiple-unit tube, has high intensity, resists
The characteristics such as tearing, wear-resisting, and anti-seismic performance is good, it is safe and reliable.
The utility model provides the following technical solution:
A kind of high-strength steel mesh framework polyethylene multiple-unit tube, including pipe matrix, pipe matrix include that ecto-entad is set successively
Plastic outer tube, the first urethane resin layer, steel screen layer, the second urethane resin layer and the plastic inner pipe set, plastic inner pipe
It is made of polyethylene with plastic outer tube, steel screen layer is the Wrapping formed meshy steel wire skeleton of left-and-right spiral, the first polyurethane
The outside circumferential direction of resin layer is equipped with several first grooves with pipe matrix axis direction vertical distribution, and first is equipped in the first groove
Steel band, is equipped with several the second grooves along pipe matrix axis directional spreding on the inside of the second urethane resin layer, in the second groove
Equipped with the second steel band, and in plastic outer tube, the first urethane resin layer, steel screen layer, the second urethane resin layer and plastics
Hot melt adhesive layer, plastic outer tube, the first urethane resin layer, steel screen layer, the second urethane resin layer and modeling are equipped between pipe
Material inner tube is bonded by hot melt adhesive layer integration.
Preferably, the inner surface of the first groove and the second groove is coated with rubber adhesive so that the first steel band and second
Steel band is separately fixed in the first groove and the second groove.
Preferably, the steel wire of steel screen layer is zinc-coated wire so that steel screen layer was both corrosion-resistant or wear-resistant.
Preferably, plastic outer layer is equipped with one layer of ultraviolet resistant layer so that the phenomenon that can postponing plastic outer layer aging.
Preferably, the steel wire of steel screen layer is spring steel wire, and steel wire diameter is 0.8-2.5 millimeters so that spring steel wire
Elasticity and resistance to stress ability are stronger.
The utility model has the beneficial effects that:There are the spies such as high intensity, tear-proof, wear-resisting since polyurethane resin is one kind
The high molecular material of property, and the plastic outer tube, the first urethane resin layer, steel wire of connection are bonded by ecto-entad successively
The pipe matrix that layer, the second urethane resin layer and plastic inner pipe are constituted so that whole intensity higher, tear-proof, wearability
Can be more preferable, and due to being respectively equipped with orthogonal first steel on the first urethane resin layer and the second urethane resin layer
Band and the second steel band so that the structural strength of pipe matrix entirety is further improved.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings:
Fig. 1 is the structure sectional view of the utility model;
Label in figure:1 is plastic outer tube, and 2 be the first urethane resin layer, and 3 be steel screen layer, and 4 be the second polyurethane
Resin layer, 5 be plastic inner pipe, and 6 be the first steel band, and 7 be the second steel band, and 8 be hot melt adhesive layer, and 9 be ultraviolet resistant layer, and 100 be pipe
Matrix.
Specific implementation mode
As shown in Figure 1, a kind of structure sectional view of high-strength steel mesh framework polyethylene multiple-unit tube, in the present embodiment,
Including pipe matrix 100, pipe matrix 100 includes plastic outer tube 1, the first urethane resin layer 2, the steel wire that ecto-entad is set gradually
Stratum reticulare 3, the second urethane resin layer 4 and plastic inner pipe 5, plastic inner pipe 5 are made of polyethylene with plastic outer tube 1, steel wire
Stratum reticulare 3 is the Wrapping formed meshy steel wire skeleton of left-and-right spiral, and the outside circumferential direction of the first urethane resin layer 2 is equipped with and pipe matrix
Several first grooves of 100 axis direction vertical distributions, are equipped with the first steel band 6 in the first groove, in the second urethane resin layer 4
Side is equipped with several the second grooves being distributed along 100 axis direction of pipe matrix, and the second steel band 7, and plastics are equipped in the second groove
Hot melt is equipped between outer tube 1, the first urethane resin layer 2, steel screen layer 3, the second urethane resin layer 4 and plastic inner pipe 5
Glue-line 8, plastic outer tube 1, the first urethane resin layer 2, steel screen layer 3, the second urethane resin layer 4 and plastic inner pipe 5 are logical
It crosses 8 integration of hot melt adhesive layer to bond, the inner surface of the first groove and the second groove is coated with rubber adhesive so that the first steel band
6 and second steel band 7 be separately fixed in the first groove and the second groove, the steel wire of steel screen layer 3 is zinc-coated wire so that steel wire
Stratum reticulare was both corrosion-resistant or wear-resistant, and plastic outer layer 1 is equipped with one layer of ultraviolet resistant layer 9 so that can postpone plastic outer layer aging
Phenomenon.
The utility model has the beneficial effects that:There are the spies such as high intensity, tear-proof, wear-resisting since polyurethane resin is one kind
The high molecular material of property, and the plastic outer tube 1, the first urethane resin layer 2, steel wire of connection are bonded by ecto-entad successively
The pipe matrix 100 that the 3, second urethane resin layer 4 of layer and plastic inner pipe 5 are constituted so that whole intensity higher, tear-proof,
Wear-resisting property is more preferable, and is mutually perpendicular to due to being respectively equipped on the first urethane resin layer 2 and the second urethane resin layer 4
The first steel band 6 and the second steel band 7 so that the whole structural strength of pipe matrix 100 is further improved.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
Technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (5)
1. a kind of high-strength steel mesh framework polyethylene multiple-unit tube, including pipe matrix, which is characterized in that the pipe matrix include by
In plastic outer tube, the first urethane resin layer, steel screen layer, the second urethane resin layer and the plastics set gradually outside to inside
Pipe, the plastic inner pipe are made of polyethylene with the plastic outer tube, and the steel screen layer is that left-and-right spiral is Wrapping formed
The outside circumferential direction of meshy steel wire skeleton, first urethane resin layer is equipped with and the pipe matrix axis direction vertical distribution
Several first grooves are equipped with the first steel band in first groove, be equipped on the inside of second urethane resin layer it is several along
Second groove of the pipe matrix axis directional spreding, second groove is interior to be equipped with the second steel band, and the plastic outer tube, institute
It states and is equipped between the first urethane resin layer, the steel screen layer, second urethane resin layer and the plastic inner pipe
Hot melt adhesive layer, the plastic outer tube, first urethane resin layer, the steel screen layer, second urethane resin layer
And the plastic inner pipe is bonded by the hot melt adhesive layer integration.
2. a kind of high-strength steel mesh framework polyethylene multiple-unit tube according to claim 1, which is characterized in that described first
The inner surface of groove and second groove is coated with rubber adhesive.
3. a kind of high-strength steel mesh framework polyethylene multiple-unit tube according to claim 1, which is characterized in that the steel wire
The steel wire of stratum reticulare is zinc-coated wire.
4. a kind of high-strength steel mesh framework polyethylene multiple-unit tube according to claim 1, which is characterized in that the plastics
Outer layer is equipped with one layer of ultraviolet resistant layer.
5. a kind of high-strength steel mesh framework polyethylene multiple-unit tube according to claim 1, which is characterized in that the steel wire
The steel wire of stratum reticulare is spring steel wire, and steel wire diameter is 0.8-2.5 millimeters.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721643226.9U CN207661243U (en) | 2017-11-30 | 2017-11-30 | A kind of high-strength steel mesh framework polyethylene multiple-unit tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201721643226.9U CN207661243U (en) | 2017-11-30 | 2017-11-30 | A kind of high-strength steel mesh framework polyethylene multiple-unit tube |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207661243U true CN207661243U (en) | 2018-07-27 |
Family
ID=62940448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201721643226.9U Active CN207661243U (en) | 2017-11-30 | 2017-11-30 | A kind of high-strength steel mesh framework polyethylene multiple-unit tube |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207661243U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109611619A (en) * | 2018-11-30 | 2019-04-12 | 江苏洁润管业有限公司 | A kind of reinforced compound pipeline complex pipeline |
CN111327002A (en) * | 2020-04-08 | 2020-06-23 | 昆山圣星通讯器材有限公司 | High-strength plastic pipe |
CN112944055A (en) * | 2021-03-11 | 2021-06-11 | 四川泰鑫实业发展有限责任公司 | Large-diameter composite drainage pipeline |
-
2017
- 2017-11-30 CN CN201721643226.9U patent/CN207661243U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109611619A (en) * | 2018-11-30 | 2019-04-12 | 江苏洁润管业有限公司 | A kind of reinforced compound pipeline complex pipeline |
CN111327002A (en) * | 2020-04-08 | 2020-06-23 | 昆山圣星通讯器材有限公司 | High-strength plastic pipe |
CN112944055A (en) * | 2021-03-11 | 2021-06-11 | 四川泰鑫实业发展有限责任公司 | Large-diameter composite drainage pipeline |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN207661243U (en) | A kind of high-strength steel mesh framework polyethylene multiple-unit tube | |
CN202327392U (en) | Plugging type fiber braided strap winding and reinforcing composite tube | |
CN102478130A (en) | High-pressure-bearing ultrahigh-molecular-weight polyethylene reinforced composite pipe structure | |
CN202274208U (en) | High-pressure flexible rubber hose assembly | |
CN102242833A (en) | Novel structure for polyethylene reinforced compound pipe | |
CN204004874U (en) | A kind of composite pipe assembly | |
CN204004863U (en) | A kind of high pressure steel wire network framework polyethylene compound pipe | |
CN202812522U (en) | Corrosion resisting high-pressure hose | |
CN103712000A (en) | Multi-layer wound composite tube | |
CN202521075U (en) | Multilayer steel wire mesh belt reinforced plastic pipe | |
CN202091649U (en) | High pressure-bearing superhigh-molecular-weight polyethylene strengthened composite pipe structure | |
CN103925425B (en) | A kind of plastic composite pipe of nonmetal skeleton | |
CN210049838U (en) | Seamless connection lining oil pipe | |
CN103062520A (en) | Novel high pressure resistant high-density polyethylene (HDPE) water pipe | |
CN207421547U (en) | A kind of continuous lod thermoplastic multiple tube with leakproofness connector | |
CN203823255U (en) | Fire-fighting underground high-pressure-resistant plastic composite tube | |
CN202532040U (en) | A connecting structure for steel reinforced spirally wound polyethylene pipes used in underground coal mines | |
CN202418942U (en) | Steel-plastic composite pipe | |
CN205824388U (en) | A kind of underground mine use skeleton strengthens dual anti-PPR pipe line | |
CN105736855A (en) | CNG conveying hose for gas filling/gas discharge pillar of gas station | |
CN205401979U (en) | Compound pipe of multipurpose is moulded to polyethylene steel | |
CN203671062U (en) | Multi-layer winding composite pipe | |
CN2529056Y (en) | Steel-plastic high-pressure anti-corrosion composited tube | |
CN206846110U (en) | A kind of distortion-free glass reinforced plastic push pipe of the sealing of sandwich construction | |
CN216078684U (en) | Hydraulic pressure pipe with crushing resistance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant |