CN2161796Y - Helix tube with double layers wall - Google Patents
Helix tube with double layers wall Download PDFInfo
- Publication number
- CN2161796Y CN2161796Y CN 93205430 CN93205430U CN2161796Y CN 2161796 Y CN2161796 Y CN 2161796Y CN 93205430 CN93205430 CN 93205430 CN 93205430 U CN93205430 U CN 93205430U CN 2161796 Y CN2161796 Y CN 2161796Y
- Authority
- CN
- China
- Prior art keywords
- helix
- helix tube
- utility
- model
- rectangle
- 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 relates to a helix tube with double walls which is made of the rigid plastic and used for draining or ventilating. Each helix reinforcing bar on the outer side surface of the helix tube is a hollow shape, and the sectional plane of each helix reinforcing bar can be made into a rectangle and can also be made into a square, a regular triangle, a round or other geometric shapes. The spaces of the side edges of two adjacent helix reinforcing bars are equal, and the both ends of the helix tube are connected adopting a rectangular dovetail slot. The utility model has the advantages of reasonable structure, light weight and high strength, and is mainly used for agricultural irrigation and drainage, pollution discharge of municipal pipelines, ventilation of pipelines, etc.
Description
The utility model relates to a kind of draining of being made by the PVC rigid plastics or the long tube of ventilation usefulness, especially a kind of double-walled spiral pipe.
Employed plastic tube in inherent draining of car at present or the ventilating engineering is solid single wall ribbed pipe.This single wall helps the tensile strength of formula pipe and shear strength low, in use be easy to generate crackle, and weight is heavier, and materials are many, the cost height.
The purpose of this utility model is in order to provide a kind of tensile strength and shear strength higher double-walled spiral pipe.
The utility model is to be made by the PVC rigid plastics, its structure characteristic is that every spiral reinforcing rod 2 in this volute 1 outside is hollow shape, its cross section is made rectangle, also can be made square, equilateral triangle, circle or other geometrical shapies, the side spacing of every adjacent two spiral reinforcing rods 2 equates that the two ends of this volute 1 adopt the rectangle tongue-and-groove to connect.
Below in conjunction with accompanying drawing structure characteristic of the present utility model is further specified:
Fig. 1 is the extrusion sheet structural representation of rectangle for the stiffening rib cross section.
Fig. 2 is a plan view of the present utility model, is to be reeled by sheet material shown in Figure 1 to form.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the linkage structure schematic representation at this volute 1 two ends.Its two ends adopt rectangle tongue-and-groove mode to connect.
Every spiral reinforcing rod 2 among Fig. 2 is a hollow shape all, and forms two sidewalls, and its tensile strength and shear strength increase than single wall volute, and load-bearing is bigger than ribbed pipe, in use is difficult for cracking, and weight is lighter, and it is few to produce material, and cost is low.
The utility model adopts the PVC rigid plastics, makes hollow sheet material (as shown in Figure 1) by extruder, and then through machinery coiling fore shaft and the synthetic tubulose of chemical solution, its internal diameter can be made into 200mm to 2000mm, and length can be changeable according to customer requirements.
The utility model is in light weight, intensity is high, is mainly used in aspects such as agricultural drainage and irrigation, municipal pipeline blowdown and pipe ventilated.
Claims (1)
- A kind of draining of making by the PVC rigid plastics or the double-walled spiral pipe of ventilation usefulness, it is characterized in that every spiral reinforcing rod on this volute outer side surface is a hollow shape, its cross section can be made rectangle, also can be made square, circle, equilateral triangle or other geometrical shapies, the side spacing of every adjacent two spiral reinforcing rods equates that the two ends of volute adopt the rectangle tongue-and-groove to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205430 CN2161796Y (en) | 1993-03-12 | 1993-03-12 | Helix tube with double layers wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205430 CN2161796Y (en) | 1993-03-12 | 1993-03-12 | Helix tube with double layers wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161796Y true CN2161796Y (en) | 1994-04-13 |
Family
ID=33788706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93205430 Expired - Fee Related CN2161796Y (en) | 1993-03-12 | 1993-03-12 | Helix tube with double layers wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161796Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840393A (en) * | 2012-09-18 | 2012-12-26 | 浙江新大塑料管件有限公司 | Double-layer polyethylene pipe |
-
1993
- 1993-03-12 CN CN 93205430 patent/CN2161796Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840393A (en) * | 2012-09-18 | 2012-12-26 | 浙江新大塑料管件有限公司 | Double-layer polyethylene pipe |
| CN102840393B (en) * | 2012-09-18 | 2014-12-17 | 浙江新大塑料管件有限公司 | Double-layer polyethylene pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |