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Anti-subsidence plastic double-head hoop telescopic joint for buried

An expansion joint and anti-settlement technology, which is applied in the direction of pipes/pipe joints/fittings, pipeline connection layout, mechanical equipment, etc., can solve problems such as no solution, and achieve the effect of improving sealing safety performance and anti-settling performance

Active Publication Date: 2017-03-22
重庆金山洋生管道有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is currently no effective solution

Method used

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  • Anti-subsidence plastic double-head hoop telescopic joint for buried
  • Anti-subsidence plastic double-head hoop telescopic joint for buried
  • Anti-subsidence plastic double-head hoop telescopic joint for buried

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see Figure 1 to Figure 3 , the present invention discloses an anti-subsidence plastic double-headed hoop telescopic joint for buried ground, the telescopic joint includes: a first hoop unit 10 and a second hoop unit 20 .

[0032] The first hoop unit 10 and the second hoop unit 20 both include a hoop unit main body with a semicircular radial section, and at least one groove is respectively provided at both axial ends of the hoop unit main body. Sealing strips 11, 21 are installed.

[0033] The first hoop unit 10 and the second hoop unit 20 are tightly hugged to form a hollow cylinder, which tightly hugs two adjacent drainage pipes 30, and the sealing strips 11 and 21 arranged at both ends are respectively arranged on the two The outer walls of adjacent drain pipes 30 make the gap area between two adjacent drain pipes 30 sealed.

[0034] The first hoop unit 10 and the second hoop unit 20 are provided with gaskets 12 and 22 at the contact points, and the gaskets 12 and ...

Embodiment 2

[0038] An anti-subsidence plastic double-headed hoop expansion joint for buried ground, the expansion joint is set between two adjacent drainage pipes with a gap between them;

[0039] The expansion joint includes at least one hoop unit; the hoop unit includes a main body of the hoop unit, and at least one sealing mechanism is respectively provided at both ends of the main body of the hoop unit;

[0040] The sealing mechanisms at both ends of the main body of the hoop unit are respectively arranged at one end of two adjacent drainage pipes, so that the gap area between the two adjacent drainage pipes is sealed.

Embodiment 3

[0042] The difference between this embodiment and Embodiment 1 is that in this embodiment, the telescopic joint includes more than three hoop units, and each hoop unit hugs tightly to form a surface of a cylinder.

[0043] A second sealing mechanism is provided where the axial side of the hoop unit contacts the axial side of other hoop units or the other axial side of the hoop unit.

[0044] A locking mechanism is provided at the contact between the axial side of the hoop unit and the axial side of other hoop units or the other axial side of the hoop unit, and the corresponding two hoop units are fixed and locked. .

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Abstract

The invention discloses a buried anti-sedimentation plastic dual head hoop telescopic joint, wherein the telescopic joint sleeves between two adjacent drain pipes between which a gap exists; the telescopic joint comprises at least one hoop unit; the hoop unit comprises a hoop unit main body; at least one sealing mechanism is arranged at two ends of the hoop unit main body respectively; the sealing mechanisms are also arranged between the hoop units (the overlapped parts); the sealing mechanisms at two ends of each hoop unit main body are respectively connected with pipe bodies at certain ends of the two adjacent drain pipes; the hoop unit main bodies are connected by the overlapped parts at two sides of the hoop units through additional sealing mechanisms; finally, the gap region between the two adjacent drain pipes is sealed. According to the buried anti-sedimentation plastic dual head hoop telescopic joint, the anti sedimentation property in the pipe construction is greatly improved; especially, for buried pipelines with rigidly connected parts, the telescopic joint appears to be especially important.

Description

technical field [0001] The invention belongs to the technical field of buried pipelines, and relates to an expansion joint, in particular to an anti-subsidence plastic double-head hoop expansion joint for underground use. Background technique [0002] Buried pipelines require a large load-bearing capacity because they are deeply buried in the ground (for drainage, sewage, ventilation, etc.); HDPE double-walled winding pipes, plastic-steel winding pipes, steel-plastic reinforced spiral corrugated pipes, double-walled corrugated pipes, FRPP Reinforced pipes, PVC reinforced pipes, etc. are widely used in buried plastic pipes. [0003] Because buried pipelines are affected by factors such as construction and installation, soil structure, geological conditions, and load differences in related areas, uneven settlement will inevitably occur between adjacent pipelines or between pipelines and inspection wells; There is a large temperature difference, which will expand and contract ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L47/18
CPCF16L47/18
Inventor 粟阳翁炳华
Owner 重庆金山洋生管道有限公司
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