CN211039981U - Hollow double-helix winding plastic hose - Google Patents
Hollow double-helix winding plastic hose Download PDFInfo
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- CN211039981U CN211039981U CN201920517263.8U CN201920517263U CN211039981U CN 211039981 U CN211039981 U CN 211039981U CN 201920517263 U CN201920517263 U CN 201920517263U CN 211039981 U CN211039981 U CN 211039981U
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Abstract
The utility model relates to a two spiral winding plastic hose of cavity. The utility model consists of a basic strip and a reinforcing strip, wherein the basic strip and the reinforcing strip are spirally wound and are formed by melting glue; the base strip is in a hollow regular trapezoid shape, two side wings of the base strip are provided with side wings which extend outwards and can be matched with each other, and the two side wings can be mutually bonded when being wound; when the basic strip is wound, the front and rear side wings are welded by molten glue to form a pipe body, and the pipe body is provided with ripples of bulges and grooves; and winding a reinforcing strip in the groove. The advantages are that: the surfaces of the most fragile winding unit joints are covered by the reinforcing strips, so that the most fragile winding unit can bear higher pressure; in addition, the reinforcing strip can prevent the pipe from being broken due to the fact that the reinforcing strip is weak and expands unevenly due to different bearing pressures and temperature changes.
Description
Technical Field
The utility model relates to a hose made of rubber or soft plastic, in particular to a hose with hollow double-helix winding.
Background
In the prior art, a spiral winding plastic hose is widely applied to drainage and pollution discharge engineering, and the spiral winding plastic hose is usually made of special-shaped strips. The cross section of the profiled strip has various shapes, such as: square strips, strips with hollow raised ribs on both sides, etc. The design objective is to increase the ring stiffness of the pipe wall when it is compressed in its entirety. The design is simple and easy to implement and effective in production. Therefore, the spirally wound plastic hose is widely used: (1) in drainage and pollution discharge systems buried underground in municipal works and residential districts; (2) pre-burying a pipeline on the expressway; (3) a water delivery and drainage system for irrigation and water conservancy; (4) chemical engineering, mines and the like are used in fluid conveying engineering.
In the construction practice, the spiral wound corrugated pipe with hollow reinforcing ribs is widely used, the product is named as Z L2011101211862, the name is inner rib reinforced outer corrugated plastic wound structural wall pipe and the manufacturing method thereof, the pipe of the product is formed by winding strip materials with hollow ends, however, the product has two weak parts, 1) when the strip materials are wound, the bonding part of two adjacent hollow parts is the weakest part of the spiral wound corrugated pipe, the main reason is that when the two adjacent hollow bonding parts are bonded at high temperature of molten glue, direct bonding pressure cannot be applied and deformation cannot be generated, so that firm bonding force cannot be achieved, and the ring rigidity of the whole pipe is reduced, 2) when the connecting part of the strip materials between the hollow parts at two ends is spirally wound forcibly, stress, particularly stress between the hollow parts and the connecting part, and the whole pipe is easy to crack when the pipe is pressed or has temperature difference.
After the spirally wound corrugated pipe is buried underground, the spirally wound corrugated pipe is repeatedly expanded and pressed by automobile wheels for a long time, so that when the whole pipe bears pressure, the two parts of the spirally wound corrugated pipe can bear uneven pressure, and the phenomenon of cracking is easily caused.
Disclosure of Invention
The invention aims to solve the cracking phenomenon of the spiral winding corrugated pipe at two parts (respectively: two hollow connecting parts and a position between the hollow part and the connecting part), and provides a hollow double-spiral winding plastic hose.
The invention aims to realize the purpose, and the hollow double-spiral winding plastic hose consists of a base strip and a reinforcing strip, wherein the base strip and the reinforcing strip are spirally wound and are formed by melting and welding glue; the base strip is formed by winding hollow trapezoidal winding units, and connecting side wings which extend outwards and are matched with each other are arranged on two sides of each winding unit; when the basic strip is spirally wound, the two side wings are mutually fused by molten glue to form a pipe body, and the pipe body is provided with ripples of bulges and grooves; and winding a reinforcing strip in the groove.
The reinforcing strip is in the shape of a hollow inverted right trapezoid.
The reinforcing strip is a hollow hexagon.
Compared with the prior art, the invention has the advantages that: (1) the surfaces of the most fragile winding unit joints are covered by the reinforcing strips, so that the most fragile winding unit can bear higher pressure; (2) in addition, the reinforcing strip can prevent the pipe from being broken due to the fact that the reinforcing strip is weak and expands unevenly due to different bearing pressures and temperature changes.
Drawings
FIG. 1 is a cross-sectional view of a base strip;
FIG. 2 is a cross-sectional view of a base pipe body into which a base strip is helically wound;
FIG. 3 is a schematic perspective view of the base strip after it has been spirally wound;
FIG. 4 is two embodiments of a reinforcing strip, a being a hollow right trapezoid, b being a hollow hexagon;
FIG. 5 is a cross-sectional view of the spirally wound tubular body after being inverted and embedded in a hollow orthotrapezoidal reinforcing strip;
fig. 6 is a cross-sectional view of the spirally wound tubular body after embedding the hollow hexagonal reinforcing strip.
Detailed Description
The utility model provides a hollow double helix winding plastic hose, which comprises a basic strip 1 and a reinforcing strip 2. The basic strip material 1 is composed of three parts, the middle part is a hollow regular trapezoid winding unit 11, the front flank and the rear flank are connecting edges, the rear flank 13 is provided with a step bonding section, and the front flank 12 is an inverted step bonding section and is bonded and matched with the rear bonding section. The reinforcing strip 2 is a hollow trapezoid a or a hollow hexagon b embedded in an inverted manner.
Claims (3)
1. A hollow double-spiral winding plastic hose is composed of a basic strip (1) and a reinforcing strip (2), and is characterized in that: the basic strip (1) and the reinforcing strip (2) are spirally wound and are formed by melting glue in a welding way; the basic strip (1) is formed by winding a hollow regular trapezoid winding unit (11), two side wings of the basic strip are provided with side wings which extend outwards and can be matched with each other, and the two side wings can be mutually bonded when being wound; when the basic strip is wound, the front and rear side wings are welded by molten glue to form a pipe body, and the pipe body is provided with ripples of bulges and grooves; and winding a circle of reinforcing strip in the groove.
2. A hollow double spiral wound plastic hose according to claim 1, wherein: the reinforcing strip is a hollow right trapezoid embedded in an inverted mode.
3. A hollow double spiral wound plastic hose according to claim 1, wherein: the reinforcing strips are hollow hexagons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517263.8U CN211039981U (en) | 2019-04-16 | 2019-04-16 | Hollow double-helix winding plastic hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920517263.8U CN211039981U (en) | 2019-04-16 | 2019-04-16 | Hollow double-helix winding plastic hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039981U true CN211039981U (en) | 2020-07-17 |
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ID=71530193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920517263.8U Active CN211039981U (en) | 2019-04-16 | 2019-04-16 | Hollow double-helix winding plastic hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005882A (en) * | 2019-04-16 | 2019-07-12 | 上海英煌管业科技有限公司 | A kind of hollow double helix winding plastic flexible pipe and its production technology |
-
2019
- 2019-04-16 CN CN201920517263.8U patent/CN211039981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005882A (en) * | 2019-04-16 | 2019-07-12 | 上海英煌管业科技有限公司 | A kind of hollow double helix winding plastic flexible pipe and its production technology |
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