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Electric gas tube lead wire penetrating method

A technology of electrical pipes and threading, which is applied in the direction of cable laying equipment, etc., can solve the problems of semi-rigid electrical pipes being unsuitable and wasteful, and achieve simple and easy access to equipment and materials, no potential safety hazards, and reduce labor costs and material loss Effect

Inactive Publication Date: 2008-09-03
NINGBO CONSTR ENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the semi-rigid electrical tubes used in this method cannot be used in any occasion, and can only be used under the condition that the pressure is not too large; Other pipelines must be synchronized with it, resulting in a certain amount of waste

Method used

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  • Electric gas tube lead wire penetrating method
  • Electric gas tube lead wire penetrating method

Examples

Experimental program
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Effect test

Embodiment 1

[0014] As shown in FIG. 1 , the equipment and materials used in the method for threading lead wires of electrical pipes are as follows: vacuuming equipment adopts ordinary household vacuum cleaners 1 , flexible lead wires adopt nylon strings 2 , and flexible objects adopt cotton balls 3 .

[0015] Tie the nylon string 2 to the cotton ball 3, and then insert the cotton ball 3 into the initial port 4a of the pre-embedded electrical pipe 4, requiring the cotton ball 3 with the nylon string 2 to be able to seal the initial port 4a of the electrical pipe 4 , and the electrical tube 4 can maintain a tight and suitable fit during the travel of the cotton ball 3, so as to achieve a full seal with the electrical tube 4; insert the suction tube 1a of the vacuum cleaner 1 directly into the terminal 4b of the electrical tube 4, and seal the electrical tube 4 terminal 4b; in this embodiment, the suction pipe of the vacuum cleaner 1 and the terminal 4b of the electrical pipe 4 just reach the...

Embodiment 2

[0020] As shown in Figure 2, the vacuum pumping equipment uses a common vacuum pump 5, and a rubber hose 8 is used to seal the terminal port of the electric pipe and the vacuum pump port. The flexible object uses a sponge ball 6 suitable for the diameter of the electric pipe. Strings adopt 22# galvanized iron wire 7. Others are with embodiment 1.

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Abstract

The invention relates to an electric pipe wire-lead threading method which has characteristic in including steps as follows: a) a flexible wire lead is fixed on a glob flexible material, then the flexible material with fixed flexible wire lead is inserted into initiating terminal and seals the electric pipe initiating terminal; b) the electric pipe terminal is accessed to a vacuum-pumping equipment and is sealed; c) the vacuum-pumping equipment is opened, and the flexible material with fixed flexible wire lead moves forward along the electric pipe under the action of subpressure generated by the vacuum-pumping equipment, until extracting the flexible material from the electric pipe terminal. By comparison with present technique, the method provided by the invention uses the flexible wire lead fixed on the flexible material, and the flexible wire lead is extracted from the electric pipe under the action of subpressure generated by the vacuum-pumping equipment by utilizing vacuum-pumping theory, accordingly, the electric pipe threading is completed. The method needs low technique request, adoptive equipment and material are simple and easy to obtain, is convenient for usage, and increases working efficiency, reduces labour cost and material loss, and has not potential safety hazard. The method is particularly suitable for threading the electric pipe in pre-buried pipe for lighting with a plurality of elbows and long pipe.

Description

technical field [0001] The invention relates to the field of building electrical construction, in particular to a method for threading lead wires of electrical pipes. Background technique [0002] Anyone who is engaged in the building electrical construction industry must know that the electrical pipeline is usually embedded in the building first, and then the electrical pipeline is inserted into the embedded electrical pipeline after the building is basically completed. Due to the large number of electrical wires to be threaded, usually the lead wires of the electrical pipes are first threaded, and then a plurality of electrical pipelines are introduced into the electrical pipes through the lead wires of the electrical pipes. Because the lead wires need to pull a plurality of electrical pipelines, steel wires with a certain strength are usually used as the lead wires, which are easier to wear than flexible lead wires. However, it is very troublesome to thread electrical pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/08
Inventor 朱伟平
Owner NINGBO CONSTR ENG GROUP
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