CN201310686Y - Double-wall plastic pipeline - Google Patents
Double-wall plastic pipeline Download PDFInfo
- Publication number
- CN201310686Y CN201310686Y CNU2008202249108U CN200820224910U CN201310686Y CN 201310686 Y CN201310686 Y CN 201310686Y CN U2008202249108 U CNU2008202249108 U CN U2008202249108U CN 200820224910 U CN200820224910 U CN 200820224910U CN 201310686 Y CN201310686 Y CN 201310686Y
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- China
- Prior art keywords
- rib
- double
- wall
- tube wall
- inner layer
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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 a double-wall plastic pipeline, which comprises an inner layer pipe wall whose inner surface is flat and an outer layer pipe wall whose outer surface is flat, wherein a connecting rib is connected between the inner layer pipe wall and the outer layer pipe wall, and the connecting rib comprises an axial rib and a loop rib, wherein the axial rib guarantees tubular products to satisfy the axial tow when in construction, and meanwhile, the loop rib guarantees tubular products to have stronger loop compressive resistance. Compared with solid wall tubular products, the double-wall plastic pipeline saves material consumption, has light weight, and is convenient for constructing, transporting and storing.
Description
Technical field
The utility model relates to a kind of plastic pipe.
Background technique
The structured wall popes of producing is divided into A type and Type B by European norm prEN13476 at present.The A type comprises two kinds: a kind of is by the axial rib connection of inside or the tubing that is connected by thermoplastic foaming layer or non-foamed interlayer between the inside and outside wall; Second kind is the tubing that is connected by the helical rib of inside between the inside and outside wall.Type B is to have smooth internal surface, has the tubing of the outer surface of the spirality of solid or hollow or ring rib.
The connection ubiquity join strength of said structure wall pipe is low maybe can not to bear the defective that pulls, during in particular for the non-excavating construction of tubing, can cause can't or very difficulty is long apart from non-excavating construction.Using scope is restricted; Seal ring is adopted in the joint, cost height, construction inconvenience etc.
The model utility content
Technical problem to be solved in the utility model provides a kind of the have certain hoop compressive strength and the double-walled plastic pipe road of endwise tensile strength.
For solving the problems of the technologies described above, the technical solution of the utility model is: the double-walled plastic pipe road, comprise inner layer tube wall and the smooth outer wall of outer surface that internal surface is smooth, and be provided with connection rib between described inner layer tube wall and the outer wall, described connection rib comprises:
Axial rib is with the parallel axes of pipeline, at least three;
The hoop rib is arranged circumferentially between described inner layer tube wall and outer wall.
As optimized technical scheme, described axial rib arranges evenly that around the axis of described pipeline described axial rib is divided into rectangular, trapezoidal, the fan-shaped or oval-shaped tube wall hollow in cross section with the space between described inner layer tube wall and the outer wall.
As to improvement of the technical scheme, described hoop rib is the solid rib of the described tube wall hollow of sealing.
As to improvement of the technical scheme, described hoop rib is provided with the aperture of connected ring to the described tube wall hollow in rib both sides.
As to further improvement in the technical proposal, described hoop rib is arranged in the two ends of described pipeline at least.
As to further improvement in the technical proposal, the hoop rib equi-spaced apart on the described pipeline is provided with.
Owing to adopted technique scheme, the double-walled plastic pipe road comprises inner layer tube wall and the smooth outer wall of outer surface that internal surface is smooth, is provided with connection rib between described inner layer tube wall and the outer wall, and described connection rib comprises axial rib and hoop rib; Axial rib has guaranteed that tubing can satisfy axially pulling when constructing, and the hoop rib has guaranteed that tubing has stronger hoop anti-pressure ability simultaneously.Compare the saving materials consumption with the solid wall pipe material, in light weight, be convenient to construction, transportation, store.
Description of drawings
Fig. 1 is the utility model embodiment's an axial sectional view;
Fig. 2 is that A-A among Fig. 1 is to sectional drawing;
Fig. 3 is that B-B among Fig. 1 is to sectional drawing;
Fig. 4 is the utility model embodiment's a pipeline connection diagram;
Fig. 5 is the another kind of cross sectional representation at the utility model embodiment hoop rib place;
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the double-walled plastic pipe road comprises the outer wall 2 that internal surface smooth inner layer tube wall 1 and outer surface are smooth, is provided with connection rib between described inner layer tube wall and the outer wall, and described connection rib comprises:
Described axial rib 3 arranges evenly that around the axis of described pipeline described axial rib is divided into the cross section with the space between described inner layer tube wall 1 and the outer wall 2 and is fan-shaped tube wall hollow 31.
Described hoop rib 4 is provided with the aperture 41 of connected ring to the described tube wall hollow in rib both sides.Certainly, described hoop rib 4 also can be for sealing the solid rib of described tube wall hollow, and as shown in Figure 5, this technological scheme also should be within protection domain of the present utility model.
The two ends of described pipeline also are provided with hoop rib 4, and this hoop rib is in the pipe production process pipeline to be formed in common ring cutting in the middle of rib, and its width is a common ring to half of rib; As shown in Figure 4, double-walled plastic pipe of the present utility model road adopts the end face hot melt to connect, and the design of this kind end face has guaranteed that promptly tubing all has same inside/outside diameter size at random position, guarantees that again the tubing connection part has sufficient area of contact and intensity.
Tubing connects the employing butt fusion welding, is polylefin thermoplatic plastic tube Placement commonly used.It is a physical process that hot melt connects commaterial: with the original compact arranged molecular chain fusing bifurcated of material, be heated to certain hour after, it is also fixing that two parts connect, and sets up seam pressure in the fusion zone; Because the effect of seam pressure, the molecular chain of fusing are with material cooled, temperature descends and reconnects, and makes two members closes become an integral body, join strength height, technical maturity.
Above embodiment only is to explanation of the present utility model rather than restriction; protection domain of the present utility model is as the criterion with the content of claim; any based on equivalence techniques conversion of the present utility model all within protection domain of the present utility model; for example: the shape of tube wall hollow section also can be a rectangle, trapezoidal or oval, and the thickness of inside and outside tube wall can be inequality.
Claims (6)
1. the double-walled plastic pipe road comprises inner layer tube wall and the smooth outer wall of outer surface that internal surface is smooth, is provided with connection rib between described inner layer tube wall and the outer wall, and it is characterized in that: described connection rib comprises:
Axial rib is with the parallel axes of pipeline, at least three;
The hoop rib is arranged circumferentially between described inner layer tube wall and outer wall.
2. double-walled plastic pipe as claimed in claim 1 road, it is characterized in that: described axial rib arranges evenly that around the axis of described pipeline described axial rib is divided into rectangular, trapezoidal, the fan-shaped or oval-shaped tube wall hollow in cross section with the space between described inner layer tube wall and the outer wall.
3. double-walled plastic pipe as claimed in claim 2 road is characterized in that: described hoop rib is the solid rib of the described tube wall hollow of sealing.
4. double-walled plastic pipe as claimed in claim 2 road is characterized in that: described hoop rib is provided with the aperture of connected ring to the described tube wall hollow in rib both sides.
5. as claim 3 or 4 described double-walled plastic pipe roads, it is characterized in that: described hoop rib is arranged in the two ends of described pipeline at least.
6. double-walled plastic pipe as claimed in claim 5 road is characterized in that: the hoop rib equi-spaced apart on the described pipeline is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202249108U CN201310686Y (en) | 2008-11-28 | 2008-11-28 | Double-wall plastic pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202249108U CN201310686Y (en) | 2008-11-28 | 2008-11-28 | Double-wall plastic pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201310686Y true CN201310686Y (en) | 2009-09-16 |
Family
ID=41107939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202249108U Expired - Fee Related CN201310686Y (en) | 2008-11-28 | 2008-11-28 | Double-wall plastic pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201310686Y (en) |
-
2008
- 2008-11-28 CN CNU2008202249108U patent/CN201310686Y/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: 20090916 Termination date: 20171128 |