CN204692797U - A kind of two flat walls entwining tube - Google Patents
A kind of two flat walls entwining tube Download PDFInfo
- Publication number
- CN204692797U CN204692797U CN201520260824.2U CN201520260824U CN204692797U CN 204692797 U CN204692797 U CN 204692797U CN 201520260824 U CN201520260824 U CN 201520260824U CN 204692797 U CN204692797 U CN 204692797U
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- CN
- China
- Prior art keywords
- receiving groove
- steel band
- entwining tube
- flat walls
- coating 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.)
- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a kind of two flat walls entwining tube, the PE strip spiral winding having cavity by one forms, described PE strip has first side and second side, described first side and second side welding form receiving groove, be embedded with steel band in described receiving groove, described receiving groove is sealed by a PE coating layer welding.The rigidity of the utility model set steel band and poly corrosion resistance, can be widely used in the flow by gravity conveying of various different corrosivity or non-aggressive medium.
Description
Technical field
The utility model relates to a kind of entwining tube, particularly relates to a kind of two flat walls entwining tube.
Background technique
In the application of heavy caliber buried drain pipe, traditional rigid pipe (as mixed earth pipe, metal tube, vitrified-clay pipe) is replaced in a large number by plastic flexible pipe.But due to pure underground drainage plastics pipes in use, expose various defect, such as along with bore becomes large, when reaching more than φ 800mm, ring stiffness is inadequate, manufacture and produce difficulty and the appearance of the problem such as cost performance is low, people no longer meet the tubing of homogenous material, but the composite pipe of sight trend of purchasing bi-material.In numerous composite pipes, steel compound plastic pipe is major product, and current steel plastic composite wound pipe mostly is single layer structure, and steel structure is completely coated by PE material.Steel band and PE strip are carried out bonding, but due to the expansion coefficient of PE be 10 times of steel, in process of expansion and contraction, PE plastics are easily by drawing crack, make conventional steel mould pipe and lose anti-corrosion capacity.Moulding pipe due to traditional steel is single layer structure, and the heat seal strength that tubing is Wrapping formed and water tightness are difficult to ensure.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of pipeline not easy to crack and has the two flat walls entwining tube of good water tightness.
The technical solution adopted in the utility model is:
A kind of two flat walls entwining tube, the PE strip spiral winding having cavity by one forms, and described PE strip has first side and second side, and described first side and second side welding form receiving groove, be embedded with steel band in described receiving groove, described receiving groove is sealed by a PE coating layer welding.
The cross section of described cavity is rectangle or circular or oval.
Described steel band is a few font steel bands, and the bottom of several fonts of described steel band is arranged against the bottom of receiving groove, and the opening of the corresponding receiving groove in top of several fonts of steel band is arranged.
Inside described receiving groove open top, both sides are provided with introversive leg, and steel band is limited in receiving groove by described leg.
Described steel band and PE coating layer corresponding part are evenly distributed with anticreep circular hole, and it is protruding that described PE coating layer has the anticreep coordinated with anticreep circular hole.
The utility model adopts above technological scheme, and in the receiving groove that PE strip welding steel band being arranged at band cavity generates, steel band has the space of " freedom " relatively, solves conventional steel well and moulds the difficult problem that pipe easily ftractures in process of expansion and contraction; Bear pressure outside by a few font steel band, make the ring stiffness of entwining tube high; Adopt the PE strip with cavity to make the entwining tube generated have the water tightness that double-walled construction effectively can improve tubing, the current of lower pressure can also be born; The cooperation of anticreep circular hole and anticreep projection, effectively can prevent coating layer and steel band delamination.The rigidity of the utility model set steel band and poly corrosion resistance, can be widely used in the flow by gravity conveying of various different corrosivity or non-aggressive medium.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details;
The structural representation of a kind of two flat walls entwining tube of Fig. 1 the utility model;
The cross section partial enlarged drawing of a kind of two flat walls entwining tube of Fig. 2 the utility model;
The schematic cross-section of the PE coating layer of a kind of two flat walls entwining tube of Fig. 3 the utility model.
Embodiment
As shown in one of Fig. 1-3, a kind of two flat walls entwining tube 100 of the utility model, PE strip 1 spiral winding having cavity by one forms, described PE strip has first side 11 and second side 12, described first side 11 and second side 12 welding form receiving groove 13,, via tube producer heat welded, ensure the quality of products in first side 11 and second side 12; Be embedded with a few font steel band 2 in described receiving groove 13, described receiving groove 13 is sealed by PE coating layer 3 welding.
The cavity cross section of described PE strip 1 is rectangle or circular or oval.
Described steel band 2 is a few font steel bands, and the bottom of several fonts of described steel band 2 is arranged against the bottom of receiving groove 13, and the opening of the corresponding receiving groove 13 in top of several fonts of steel band 2 is arranged.
Inside the open top of described receiving groove 13, both sides are provided with introversive leg 14, and steel band 2 is limited in receiving groove 13 by described leg 14.
Described steel band 2 is evenly distributed with anticreep circular hole 21 with PE coating layer 3 corresponding part, and described PE coating layer 3 has the anticreep projection 31 coordinated with anticreep circular hole 21.
The utility model adopts above technological scheme, and in the receiving groove that PE strip welding steel band being arranged at band cavity generates, steel band has the space of " freedom " relatively, solves conventional steel well and moulds the difficult problem that pipe easily ftractures in process of expansion and contraction; Bear pressure outside by a few font steel band, make the ring stiffness of entwining tube high; Adopt the PE strip with cavity to make the entwining tube generated have the water tightness that double-walled construction effectively can improve tubing, the current of lower pressure can also be born; The cooperation of anticreep circular hole and anticreep projection, effectively can prevent coating layer and steel band delamination.The rigidity of the utility model double-flat-wall steel-plastic composite water drainage pipe set steel band and poly corrosion resistance, the flow by gravity conveying of various different corrosivity or non-aggressive medium can be widely used in, as urban sewage pipe, industrial sewage pipeline, storm drain lines, bridges and culverts road blowdown drainage pipe, agricultural irrigation pipeline, getting water from water head site pipeline etc., there are wide market prospects, be the first-selected product of national great construction-engineering project, China's subsoil drain main flow will be led, start a green revolution of subsoil drain industry.
Claims (5)
1. a two flat walls entwining tube, it is characterized in that: described entwining tube is formed by the PE strip spiral winding with cavity, described PE strip has first side and second side, described first side and second side welding form receiving groove, be embedded with steel band in described receiving groove, described receiving groove is sealed by a PE coating layer welding.
2. a kind of two flat walls entwining tube according to claim 1, is characterized in that: the cross section of described cavity is rectangle or circular or oval.
3. a kind of two flat walls entwining tube according to claim 1, is characterized in that: inside described receiving groove open top, both sides are provided with introversive leg, and steel band is limited in receiving groove by described leg.
4. a kind of two flat walls entwining tube according to claim 1, is characterized in that: described steel band is a few font steel bands, and the bottom of several fonts of described steel band is arranged against the bottom of receiving groove, and the opening of the corresponding receiving groove in top of several fonts of steel band is arranged.
5. a kind of two flat walls entwining tube according to claim 1, is characterized in that: described steel band and PE coating layer corresponding part are evenly distributed with anticreep circular hole, and it is protruding that described PE coating layer has the anticreep coordinated with anticreep circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520260824.2U CN204692797U (en) | 2015-04-27 | 2015-04-27 | A kind of two flat walls entwining tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520260824.2U CN204692797U (en) | 2015-04-27 | 2015-04-27 | A kind of two flat walls entwining tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692797U true CN204692797U (en) | 2015-10-07 |
Family
ID=54233090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520260824.2U Expired - Fee Related CN204692797U (en) | 2015-04-27 | 2015-04-27 | A kind of two flat walls entwining tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333241A (en) * | 2015-11-25 | 2016-02-17 | 安徽华奇管业有限公司 | Steel-clamping rib-stiffened hollow plastic outer corrugated pipe and manufacturing method thereof |
-
2015
- 2015-04-27 CN CN201520260824.2U patent/CN204692797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333241A (en) * | 2015-11-25 | 2016-02-17 | 安徽华奇管业有限公司 | Steel-clamping rib-stiffened hollow plastic outer corrugated pipe and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20170427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |