CN202100844U - Enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe - Google Patents
Enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe Download PDFInfo
- Publication number
- CN202100844U CN202100844U CN201120232589XU CN201120232589U CN202100844U CN 202100844 U CN202100844 U CN 202100844U CN 201120232589X U CN201120232589X U CN 201120232589XU CN 201120232589 U CN201120232589 U CN 201120232589U CN 202100844 U CN202100844 U CN 202100844U
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- China
- Prior art keywords
- corrugated pipe
- pvc
- dual
- wall corrugated
- wall
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- 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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Abstract
The utility model discloses an enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe. Long strip-shaped PVC-U plate belts with corrugated convex ridge parts are welded together in a fusing way after being rolled so as to form pipe walls of the dual-wall corrugated pipe, each corrugated convex ridge part is circular arc-shaped with the transition formed by a circular arc-shaped transition angle, and a layer of PVC-U fused body is coated on a fusing part. The enhanced type PVC-U dual-wall corrugated pipe has the following characteristics: the structure is simple and the manufacturing is convenient; the ring stiffness of the formed enhanced type dual-wall corrugated pipe is high; the wave crest part and the transition angle are integrally circular arc-shaped and the wall thickness is uniform, so that the capability of resisting the impact of external forces is greatly enhanced; meanwhile, as the circular arc-shaped transition is adopted and the transition angle is smooth, the flowing of materials is smooth in the producing process; moreover, as the corrugated shapes of pipe materials are beautiful and consistent, the product quality and performance can be greatly improved.
Description
Technical field
The utility model relates to the tubing equipment and technology, relates in particular to a kind of reinforced PVC-U double-wall corrugated pipe.
Background technique
Double-wall corrugated pipe is selected RPVC (PVC--U) extruding and moulding for use.Has inner wall smooth, stream
Different many advantages such as flux is big, in light weight, corrosion-resistant are the underground best substitute of burying various tubing underground.Be mainly used in underground draining, the blow-off line buried underground in residential quarters at present; High voltage cable, post and telecommunications cable cover(ing); The pre-buried pipeline of expressway circuit; Farmland, water conservancy irrigation water delivery, water drainage; Chemical industry, mine are used for the conveying of fluid or solid etc.But find following problem in the practical application: its crest section of corrugated outer wall shape of original tubing is too straight, and the crest plane is long, and the transition angular position has " turning " to exist, and causes wall unevenness even, and has bigger internal stress at place, transition angle.Make tubing bury underground in the process, as be prone to when receiving the object hard collision that the external world has sharp keen wedge angle damagedly, cause the damage of tubing ripple in transportation and installation.Simultaneously, this form structure in process of production, Flow of Goods and Materials is not smooth.When interlayer air pressure is unstable, can cause the inconsistent of ripple profile, influence outward appearance and quality of product, and no matter present double-wall corrugated pipe be to use PVC or HDPE material, the double-wall corrugated pipe forming machine of its process equipment is costliness very all.
Summary of the invention
The purpose of the utility model provides a kind of reinforced PVC-U double-wall corrugated pipe, and simple in structure, ring stiffness is strong, and is easily manufactured;
A kind of reinforced PVC-U double-wall corrugated pipe; Its tube wall is that the strip PVC-U strip that has a protruding spine of corrugated rolls then welding each other and forms; The protruding spine of said corrugated is the circular shape by circular arc transition angle transition, is enclosed with the steel wire that spiral twines in the protruding spine of said each corrugated.
Scribble one deck PVC-U melt on the said weld portion.
Compared with prior art, the advantage of the utility model is:
The utility model is simple in structure, makes great convenience, and the reinforced double-wall corrugated pipe ring stiffness that constitutes is high, and crest position in the utility model and transition angle integral body are circular shape, and wall thickness is even, has strengthened the ability that its external force resistance impacts greatly.Simultaneously, owing to adopt the circular arc transition, its transition angle slyness is smooth, and in the production process formula, Flow of Goods and Materials is smooth and easy, and the bellows-shaped of tubing unanimity attractive in appearance can greatly be improved the quality of products and performance.
Description of drawings
Fig. 1 is the structural drawing of the utility model;
Fig. 2 uses novel joint concrete structure figure for this.
Embodiment
The specific embodiment of the utility model, shown in Figure 1, the inwall 1 of double-wall corrugated pipe is straight pipeline section, outer wall 2 is corrugated, is interlayer therebetween.In the present embodiment, the crest position of corrugated outer wall 2 is the circular shape by circular arc transition angle transition.Outer wall 2 ripple slynesses are smooth, do not have at " turning ", and wall thickness is even, are enclosed with the steel wire 6 that spiral twines in the protruding spine of said each corrugated.
As shown in Figure 2, in the weld portion 4 of strip, A part promptly shown in Figure 1; On scribble one deck PVC-U melt 3 again, the reinforced double-wall corrugated pipe of the utility model need not expensive double-wall corrugated pipe forming machine during fabrication; Only the equipment that need roll rolls strip strip spiral; Weld portion 4 is welded together, and then on weld portion 4, is coated with last layer PVC-U melt 3, get final product after roll extrusion then, the cooling.
The reinforced PVC-U double-wall corrugated pipe ring stiffness of the utility model can reach SN4-SN8, and comparing existing double-wall corrugated pipe ring stiffness SN2 has the raising than the people.
Claims (2)
1. reinforced PVC-U double-wall corrugated pipe; It is characterized in that; Its tube wall is that the strip PVC-U strip that has a protruding spine of corrugated rolls then welding each other and forms; The protruding spine of said corrugated is the circular shape by circular arc transition angle transition, is enclosed with the steel wire that spiral twines in the protruding spine of said each corrugated.
2. a kind of reinforced PVC-U double-wall corrugated pipe according to claim 1 is characterized in that, scribbles one deck PVC-U melt on the said weld portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232589XU CN202100844U (en) | 2011-07-04 | 2011-07-04 | Enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232589XU CN202100844U (en) | 2011-07-04 | 2011-07-04 | Enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100844U true CN202100844U (en) | 2012-01-04 |
Family
ID=45386858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120232589XU Expired - Fee Related CN202100844U (en) | 2011-07-04 | 2011-07-04 | Enhanced type PVC-U (Unplasticized Polyvinyl Chloride) dual-wall corrugated pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100844U (en) |
-
2011
- 2011-07-04 CN CN201120232589XU patent/CN202100844U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20190704 |