一种具有防开裂结构的PE管

By combining a multi-layered structural design with an elastic buffer, the problem of PE pipes being prone to cracking was solved, resulting in improved crack resistance and enhanced structural stability.

CN224516169UActive Publication Date: 2026-07-17XINJIANG GONGCHUANG YATONG PIPE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG GONGCHUANG YATONG PIPE IND CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing PE pipes are prone to cracking during use due to soil compression, ground subsidence, external impact, and bending. Furthermore, existing solutions struggle to balance flexibility and crack resistance, posing safety hazards.

Method used

It adopts a multi-layer structure design, including a smooth inner layer, a spiral reinforcement layer and a corrugated outer layer, combined with an elastic buffer and an anti-bending ring, to disperse external stress and enhance impact resistance.

Benefits of technology

It improves the crack resistance of PE pipes, buffers external impacts, reduces stress concentration, enhances structural stability, and is suitable for pipeline use under complex working conditions.

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Abstract

本实用新型涉及PE管技术领域，特别涉及一种具有防开裂结构的PE管，包括管体，所述管体由内至外依次包括平滑内层、螺旋加强层和波纹外层，所述螺旋加强层由连续缠绕的增强带构成，增强带以交替交叉角度包覆于平滑内层外表面，所述波纹外层的外表面设有等间距分布的环状凸起波纹，所述环状凸起波纹的波谷内嵌设有弹性缓冲体，所述波纹外层的轴向间隔设有向内凹陷的抗弯折环，所述抗弯折环与波纹外层的环状凸起波纹错位分布；本实用新型具有提高抗开裂性能、缓冲外力冲击、减少应力集中、增强结构稳定性的优点。
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Claims

1. A PE pipe having a crack prevention structure, characterized by: The tube includes a smooth inner layer (1), a spiral reinforcing layer (2), and a corrugated outer layer (3) from the inside out. The spiral reinforcing layer (2) is composed of continuously wound reinforcing strips, which wrap around the outer surface of the smooth inner layer (1) at alternating cross angles. The outer surface of the corrugated outer layer (3) is provided with annular raised corrugations (31) distributed at equal intervals. An elastic buffer (4) is embedded in the trough of the annular raised corrugations (31). The corrugated outer layer (3) is provided with inwardly recessed anti-bending rings (32) at axial intervals. The anti-bending rings (32) are misaligned with the annular raised corrugations (31) of the corrugated outer layer (3).

2. The PE pipe having a crack prevention structure according to claim 1, characterized by: The smooth inner layer (1) is made of high-density polyethylene.

3. The PE pipe having a crack prevention structure according to claim 1, wherein: The reinforcing strip of the spiral reinforcing layer (2) is made of glass fiber reinforced polypropylene.

4. The PE pipe having a crack prevention structure according to claim 1, wherein: The corrugated outer layer (3) is made of linear low-density polyethylene.

5. The PE pipe with anti-cracking structure as described in claim 1, characterized in that: The elastic buffer (4) is made of closed-cell foamed rubber material.

6. The PE pipe having a crack prevention structure according to claim 1, wherein: The recessed structure of the anti-bending ring (32) extends inward from the outer surface of the corrugated outer layer (3) to the spiral reinforcing layer (2).