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A copper-plastic composite pipe

A technology of copper-plastic composite and copper pipes, which is applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., and can solve problems such as liquid leakage and poor fixing effect

Active Publication Date: 2011-12-14
GUANGZHOU SEAGULL KITCHEN & BATH PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the copper-plastic composite pipe in the prior art uses an adhesive to fix the copper pipe layer and the plastic pipe layer and the fixing effect is not good and the liquid is easy to leak. defects, thereby providing a copper-plastic composite pipe with good fixing effect between the copper pipe layer and the plastic pipe layer so that leakage is not easy to occur

Method used

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  • A copper-plastic composite pipe
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The copper-plastic composite pipe in this embodiment has a first open end 1 and a second open end 2. The copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 with figure 2 ) And the plastic pipe layer 4 located inside the copper pipe layer 3 (see Figure 4 ), the plastic tube layer 4 radially wraps the end of the copper tube layer 3 at the first open end 1 and forms a wrapper 8, and the wrapper 8 forms an edge on its radial edge Fold 9 extending in the direction of the second open end 2 of the copper tube layer 3 (see Figure 4 ), here, the height of the folded back 9 is 1mm, the inner wall of the folded back 9 and the outer wall of the copper tube layer 3 are attached and fixed; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11 is formed on the wrapping portion 8 with a square boss that is matched and fixed with the square groove 11. Here, there are four square grooves 11; the copper tube layer 3 ...

Embodiment 2

[0035] The copper-plastic composite pipe in this embodiment has a first open end 1 and a second open end 2. The copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 with figure 2 ) And the plastic pipe layer 4 located inside the copper pipe layer 3 (see Figure 4 ), the plastic tube layer 4 radially wraps the end of the copper tube layer 3 at the first open end 1 and forms a wrapper 8, and the wrapper 8 forms an edge on its radial edge Fold 9 extending in the direction of the second open end 2 of the copper tube layer 3 (see Figure 4 ), here, the height of the folded back 9 is 2mm, the inner wall of the folded back 9 and the outer wall of the copper tube layer 3 are attached and fixed; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11 is formed on the wrapping portion 8 with a square boss that is matched and fixed with the square groove 11, where there are eight square grooves 11; the copper tube layer 3...

Embodiment 3

[0037] The copper-plastic composite pipe in this embodiment has a first open end 1 and a second open end 2. The copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 with figure 2 ) And the plastic pipe layer 4 located inside the copper pipe layer 3 (see Figure 4 ), the plastic tube layer 4 radially wraps the end of the copper tube layer 3 at the first open end 1 and forms a wrapper 8, and the wrapper 8 forms an edge on its radial edge Fold 9 extending in the direction of the second open end 2 of the copper tube layer 3 (see Figure 4 ), here, the height of the folded back 9 is 3mm, the inner wall of the folded back 9 and the outer wall of the copper tube layer 3 are attached and fixed; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11 is formed on the wrapping portion 8 with a square boss that is matched and fixed with the square groove 11. Here, there are six square grooves 11; the copper tube layer 3 i...

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Abstract

The invention relates to a pipeline part, and in particular relates to a copper plastic compound pipe. The invention provides a copper plastic compound pipe which is provided with a first open end and a second open end. The copper plastic compound pipe comprises a copper pipe layer and a plastic pipe layer positioned at the interior of the copper pipe layer, and the part, positioned at the first open end, of the plastic pipe layer radially packages the end of the copper pipe layer so as to form a package part; the radial edge of the package part forms a reentry which extends toward the second open end, and the inner wall of the reentry is fitly fixed on the outer wall of the copper pipe layer; and the inner wall of the reentry is fitly fixed on the outer wall of the copper pipe layer so as to prevent the copper pipe layer of the molded copper plastic compound pipe from shifting axially, so that the fixed effect is good, thereby preventing the leakage caused by the looseness of the copper pipe layer and the plastic pipe layer.

Description

Technical field [0001] The invention relates to pipeline components, in particular to a copper-plastic composite pipe. Background technique [0002] Most of the plumbing parts in the bathroom are made of copper fittings. However, copper alloy is a relatively scarce resource and the price is relatively high, and the plumbing parts made of copper alloy are heavier and inconvenient to install. In order to overcome the above shortcomings caused by the use of copper alloys to manufacture pipes, manufacturers have researched and produced copper-plastic composite pipes made of plastic materials and copper alloys. Chinese Patent Document CN2869530Y discloses a copper-plastic composite pipe having a copper pipe layer and a plastic pipe layer located in the copper pipe layer, and the plastic pipe layer has a copper pipe layer inside, Wherein, the adjacent copper tube layer and the plastic tube layer are connected by a layer of hot-melt polymer bonding agent. The copper-plastic composite ...

Claims

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Application Information

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IPC IPC(8): F16L9/147
Inventor 不公告发明人
Owner GUANGZHOU SEAGULL KITCHEN & BATH PROD
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