Combined electrofusion connecting pipe and pipe construction welding method

A technology for connecting pipe fittings and a welding method, which is applied in the field of combined electrofusion connecting pipe fittings and pipe fittings construction and welding, can solve the problems of inconvenient processing and mass production, high required operation level, and high product scrap rate, and achieves easy processing and mass production. Effect

Pending Publication Date: 2020-02-28
成都因明凯撒管材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention can realize the purpose of facilitating the processing and mass production of the electrofusion connection pipe fittings. By detachably assembling the electrofusion connection parts and the electric heating elements in the electrofusion connection pipe fittings, the electric heating connection parts and the electric heating elements can be manufactured separately, and then Re-assembly and molding solves the problems of high product scrap rate, high demand operation level, low productivity, and inconvenient actual processing and mass production of the existing electric fusion connection pipe fittings due to the injection molding process of the electric heating wire and the electric heating connecting piece.

Method used

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  • Combined electrofusion connecting pipe and pipe construction welding method
  • Combined electrofusion connecting pipe and pipe construction welding method
  • Combined electrofusion connecting pipe and pipe construction welding method

Examples

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Effect test

Embodiment 1

[0041] see Figure 1~5 , a combined electrofusion connection pipe fitting, including an electrofusion connection piece 1 for pipeline welding, a cylindrical electric heating element 4 is built in both ends of the electric fusion connection piece 1, and the electric heating element 4 is connected with the electric fusion The connecting piece 1 can be assembled and assembled in a detachable manner.

[0042] In this embodiment, the electrofusion connector 1 can be injection molded by an injection molding machine, and its structure can be figure 1 The straight cylindrical shape shown in , can also be Figure 4 Tee tubular in or Figure 5 Elbow tubes in the middle, or even other special-shaped tubes, as long as the opening end is cylindrical, the material can be polyolefins such as PE and PPR, and the finished electrical appliances can be made through specific molds or mechanical processing methods in the process of injection molding. The loading position of the electric heating e...

Embodiment 2

[0045] see Figure 1~3 , a combined electrofusion connection pipe fitting, including an electrofusion connection piece 1 for pipeline welding, a cylindrical electric heating element 4 is built in both ends of the electric fusion connection piece 1, and the electric heating element 4 is connected with the electric fusion The connecting piece 1 can be assembled and assembled in a detachable manner.

[0046] A retaining ring 3 is arranged in the inner hole of the electrofusion connector 1 , and the two electric heating elements 4 are respectively located at two ends of the retaining ring 3 .

[0047] In this embodiment, the inner diameter of the retaining ring 3 is smaller than the inner diameter of the electrofusion connector 1, and the pipe material to be taken over can move to conflict with the end face of the retaining ring 3 when it is loaded into the pipe fitting of the electrofusion connector 1. The limited position, that is, the connection position of the pipes to be con...

Embodiment 3

[0054] see Figure 1~3 , a combined electrofusion connection pipe fitting, including an electrofusion connection piece 1 for pipeline welding, a cylindrical electric heating element 4 is built in both ends of the electric fusion connection piece 1, and the electric heating element 4 is connected with the electric fusion The connecting piece 1 can be assembled and assembled in a detachable manner.

[0055] The heating element 4 is composed of a threaded resistance wire 43, one end of the resistance wire 43 is electrically connected to a copper electrode 44 longitudinally, and the two ends of the electrofusion connector 1 are provided with electrode grooves 5, and the copper electrode 44 is located at Inside the electrode tank 5.

[0056] In this embodiment, the electrofusion connection pipe fitting can be formed by putting the threaded resistance wire 43 into both ends of the electrofusion connector 1, and then the copper electrode 44 in the motor slot can be energized to make...

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Abstract

The invention relates to the technical field of pipe connection and discloses a combined electrofusion connecting pipe. The combined electrofusion connecting pipe comprises an electrofusion connectingpart used for pipe welding. The two ends of the electrofusion connecting part are internally provided with cylindrical electrofusion elements. The electrofusion elements and the electrofusion connecting part are detachably combined and assembled. Through the combined electrofusion connecting pipe, the purpose of manufacturing and mass production of electrofusion connecting pipes can be achieved conveniently. Through detachable combined assembly of the electrofusion connecting part and the electrofusion elements in the electrofusion connecting pipe, the electrofusion connecting part and the electrofusion elements can be manufactured respectively and then are assembled together. The problems that the product rejection rate is high, the required operation level is high, the productivity is low, the labor intensity is large and existing electrofusion connecting pipes are inconvenient to manufacture actually and produce in batches due to the injection molding process adopted for electric heating wires and electric heating connecting parts are solved.

Description

technical field [0001] The invention relates to the technical field of pipe fitting connection, in particular to a combined electrofusion connection pipe fitting and a pipe fitting construction welding method. Background technique [0002] Electrofusion pipe fittings are a very important connection joint in the connection of plastic pipes, which firmly weld the pipes in the same direction together. At present, most of the electric fusion sleeves in China are pure plastic injection-molded electric fusion pipe fittings such as PE and PE-RT. , the connection between the pure plastic electrofusion pipe fittings and the pipe is heated by the electric heating wire arranged on the inner wall of the socket of the pure plastic electrofusion pipe fitting. First, the pipe and pipe fittings are heated and expanded, and the air between the outer wall of the pipe and the inner wall of the pipe fitting is removed, and then the electric heating is increased. The voltage of the wire makes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/03B29C65/46B29L23/00
CPCB29C65/46B29C66/5221B29L2023/22F16L47/03
Inventor 魏明星
Owner 成都因明凯撒管材有限责任公司
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