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Plastic coated metal pipe joint

A metal pipe and plastic-coated technology, which is applied in the direction of pipe/pipe joint/pipe fitting, sleeve/socket connection, passing components, etc., can solve the problems of high cost of metal joints, sealing of metal joints and plastic boxes, and difficult life problems, etc. , to achieve the effects of easy welding, good sealing performance and high joint strength

Inactive Publication Date: 2011-04-20
南京艾普太阳能设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main reasons: one is the cost problem, the cost of the metal joint is high; the other is the technical problem, the sealing and life problems between the metal joint and the plastic box are not easy to solve

Method used

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  • Plastic coated metal pipe joint
  • Plastic coated metal pipe joint
  • Plastic coated metal pipe joint

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Experimental program
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Effect test

Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the present invention is described in detail:

[0015] like figure 1 As shown, the plastic-coated metal pipe joint body 1 of the present invention and the plastic sleeve 2 coated on one end connected with the plastic water tank, wherein the metal pipe joint body 1 can process a fitting groove 3 at the end of its injection molding, and the fitting groove Place sealing ring 4 inside, see figure 2 , so that during injection molding, the plastic sleeve and the sealing ring form an integral plastic sleeve and are embedded in the metal pipe joint body 1, which can not only greatly improve the sealing performance, but also make the plastic sleeve and the pipe joint body 1 more reliable, without It will slip off under the action of external force.

[0016] In this embodiment, three serrated fixed teeth are designed on the protrusion 5 of the plastic-coated part of the metal joint body 1. The structure of the teeth can be sawtoo...

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Abstract

The invention discloses a plastic coated metal pipe joint. The plastic coated metal pipe joint comprises a metal pipe joint body and is characterized in that: a plastic sleeve wraps one end of the metal pipe joint body; an embedding groove is formed at the end of the metal pipe joint body wrapped by the plastic sleeve; a sealing ring is arranged in the embedding groove; and the plastic sleeve wraps the embedding groove and the sealing ring. Compared with the prior art, one end of the metal pipe joint body is wrapped by the plastic sleeve in a way of injection moulding; particularly, the embedding groove is formed on the metal pipe joint body and the sealing ring is arranged in the embedding groove, so that the sealing property is greatly improved again and the plastic coated metal pipe joint achieves 100 percent of full sealing in a way that the plastic sleeve and the metal pipe joint body are more firmly moulded integrally through the sealing ring; the tensile strength, the torsion resistance and the strength of the joint are high; and when a moulded water tank is mounted, and an injection moulded part and the inner wall of the plastic water tank are welded, so that the integral moulding of the water tank is not affected.

Description

Technical field: [0001] The invention relates to a metal pipe joint, in particular to a plastic-coated metal pipe joint used in connection with plastics. Background technique: [0002] In addition to the metal joints with small diameter (generally below 10mm) on the plastic water tank in the market, the general joints are usually connected by plastic flanges. If it is used in a high temperature environment, it is almost useless. of metal joints. There are two main reasons: one is the cost problem, the cost of the metal joint is high; the other is the technical problem, the sealing and life problems between the metal joint and the plastic box are not easy to solve. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a plastic-coated metal pipe joint with good sealing, durability and non-damage, aiming at the deficiencies of the above-mentioned prior art. [0004] In order to solve the above technical problems, the t...

Claims

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Application Information

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IPC IPC(8): F16L21/00
Inventor 张爱友
Owner 南京艾普太阳能设备有限公司
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