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An auxiliary device for replacing cables in a threading pipe and a method for replacing cables

A technology of auxiliary device and threading pipe, which is applied in the direction of cable installation device, cable installation, cable laying equipment, etc., can solve the problems of secondary rework, easy loosening, and bad joints, so as to improve work efficiency and prolong use. Longevity, friction reduction effect

Active Publication Date: 2019-04-16
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will be many problems in the whole process. The width of the joint is smaller than the diameter of the threading pipe, which requires more time and effort for the operator; if the joint is not well made, it is easy to loosen during the dragging process, and it has to be reworked twice, which affects the threading efficiency.

Method used

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  • An auxiliary device for replacing cables in a threading pipe and a method for replacing cables
  • An auxiliary device for replacing cables in a threading pipe and a method for replacing cables

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Embodiment Construction

[0018] In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.

[0019] Such as figure 1 Shown is an auxiliary device for replacing cables in a threading pipe, including a pulling head 1 and a clamping tube 3 fixed at both ends of the pulling head 1. The circle is provided with a tapered thread and a fastening nut 5 adapted to the tapered thread, and the small diameter end of the clamping tube 3 is provided with two to four openings 6 that run through the diameter direction and extend toward the large diameter end. In this embodiment, there are four openings 6, The pipe wall of the holding pipe 3 is equally divided into four parts.

[0020] In order to reduce the friction between the traction head 1 and the inner wall of the threading pipe, at least three support rollers 2 are evenly arranged on the outer wall of the traction head 1 along the circumferential direction. In this embodimen...

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Abstract

The invention relates to an auxiliary device for replacing a cable in a threading pipe. The auxiliary device comprises a traction head (1) and clamping pipes (3) fixedly arranged at the two ends of the traction head (1). The outer diameter of the clamping pipes (3) is gradually reduced from the end face of the traction head (1) outwards, taper threads and fastening nuts (5) matched with the taper threads are arranged on the external circles of the clamping pipes (3), and two to four openings (6) extending towards the large-diameter ends in the diameter direction are formed in the small-diameter ends of the clamping pipes (3). According to the auxiliary device, operators can conveniently replace the cable in the threading pipe in a labor saving mode, and work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of installation and laying of electrical cables, in particular to an auxiliary device for replacing cables in a threading pipe and a method for replacing cables. Background technique [0002] The cable threading tube mainly plays the role of protecting the cable. It is often used for the concealed laying of electrical cables. In heavy industrial work sites with harsh environments, the cable threading tube has functions such as dustproof and waterproof. [0003] For the existing threading pipe, when replacing the electrical cable in the pipe, one end of the old cable is connected to one end of the new cable, and then the joint is waterproofed, the old cable is dragged, and the old cable is used to take out the new cable to complete the replacement. There will be many problems in the whole process. The width of the joint is smaller than the diameter of the threading pipe, which requires more time and effort fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/08
CPCH02G1/081H02G1/085
Inventor 程昊顾华杰李新平陈峰陈新杨玲刘勇李彬
Owner SHANDONG IRON & STEEL CO LTD