Copper plastic compound pipe

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

Active Publication Date: 2013-11-13
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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  • Copper plastic compound 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, and the copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 and figure 2 ) and the plastic tube layer 4 located inside the copper tube 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 wrapping portion 8, and the wrapping portion 8 forms a radial edge along the The foldback 9 extending in the direction of the second open end 2 of the copper pipe layer 3 (see Figure 4 ), here, the height of the turnback 9 is 1 mm, and the inner wall of the turnback 9 is attached and fixed to the outer wall of the copper tube layer 3; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11, the wrapping part 8 is formed with a square boss that matches and fixes the square groove 11, here, there are four square grooves 11; the copper ...

Embodiment 2

[0035] The copper-plastic composite pipe in this embodiment has a first open end 1 and a second open end 2, and the copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 and figure 2 ) and the plastic tube layer 4 located inside the copper tube 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 wrapping portion 8, and the wrapping portion 8 forms a radial edge along the The foldback 9 extending in the direction of the second open end 2 of the copper pipe layer 3 (see Figure 4 ), here, the height of the turnback 9 is 2 mm, and the inner wall of the turnback 9 is attached and fixed to the outer wall of the copper tube layer 3; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11, the wrapping part 8 is formed with a square boss that matches and fixes the square groove 11, here, there are eight square grooves 11; the copper ...

Embodiment 3

[0037] The copper-plastic composite pipe in this embodiment has a first open end 1 and a second open end 2, and the copper-plastic composite pipe includes a copper pipe layer 3 (see figure 1 and figure 2 ) and the plastic tube layer 4 located inside the copper tube 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 wrapping portion 8, and the wrapping portion 8 forms a radial edge along the The foldback 9 extending in the direction of the second open end 2 of the copper pipe layer 3 (see Figure 4 ), here, the height of the turnback 9 is 3 mm, and the inner wall of the turnback 9 is attached and fixed to the outer wall of the copper tube layer 3; the end surface of the first open end 1 of the copper tube layer 3 is formed with A square groove 11, the wrapping part 8 is formed with a square boss that matches and fixes the square groove 11, here, there are six square grooves 11; the copper t...

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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 pipe parts, in particular to a copper-plastic composite pipe. Background technique [0002] Most of the plumbing parts in bathrooms use copper fittings. However, copper alloy is a relatively scarce resource with a high price, and the plumbing parts made of copper alloy are heavy and inconvenient to install. In order to overcome the above defects caused by using copper alloys to manufacture pipes, manufacturers have been researching and producing copper-plastic composite pipes made of plastic materials and copper alloys. Chinese patent document CN2869530Y discloses a copper-plastic composite pipe. The copper-plastic composite pipe has a copper pipe layer and a plastic pipe layer inside the copper pipe layer. There is another copper pipe layer inside the plastic pipe layer. Wherein, the adjacent copper pipe layer and the plastic pipe layer are connected by a layer of hot-melt polymer adhesive. The copper-plastic composite pipe ...

Claims

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Application Information

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