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Construction method using long-distance preset concealed pipe to sleeve lead

A construction method and a technology of pre-piercing lead wires, which are applied in the direction of cable installation, cable laying equipment, cable installation devices, etc., can solve the problems of difficult construction, high cost, high price, etc., and achieve reliable threading, low construction cost, and easy construction The effect of easy operation

Inactive Publication Date: 2021-02-26
CHINA 19TH METALLURGICAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when the threading operation is carried out in the later stage, due to the long embedded pipeline, the traditional steel wire threading may not be able to penetrate the reserved pipeline
Even if it is required by the code that the line length of the pre-embedded pipe is longer than 30 meters, a wire box should be added. Although this method solves the above problems to a certain extent, in the actual implementation process, the wire box added in the middle of the long-distance embedded pipe In the process of concrete pouring, the risk of plugging of pre-embedded pipes is increased, and at the same time, the cost is increased, and workers are easy to grasp the position of the additional wire box during construction, resulting in the actual length of pre-embedded pipes being greater than 30m, causing subsequent construction difficulties
[0003] The application number is 202010362990.9. The technical solution provided by the patent of a new type of threading machine power structure, although it can carry out long-distance threading, but it has relatively high requirements for the turning radius of the pre-embedded pipe, and the stability of wire feeding or pulling is poor. For complex conditions cannot be met
At the same time, the equipment is expensive, and its leads are easily damaged, and the maintenance cost is very high
[0004] To sum up, long-distance pre-embedded pipe threading is extremely difficult, and the risk of pipe blockage by adding a wire-passing box in the middle is relatively high. The power structure of the new threading machine has high requirements on the turning radius of the pre-embedded pipe and its cost is high

Method used

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  • Construction method using long-distance preset concealed pipe to sleeve lead

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The technical solution adopted in this application to solve technical problems is:

[0026] 1. The construction method of this application mainly includes a lightweight plastic ball hollow ball one grade smaller than the diameter of the embedded pipe, a high-strength flexible lead wire, a blower, and an air supply sleeve;

[0027] 2. Pass the high-strength flexible lead wire through the hollow ball of the light plastic ball, connect it with the sphere, and put the connected sphere into a section of the pipe to be threaded;

[0028] 3. Connect the air supply pipe to the wire pipe at the end of the ball, and reserve a small hole for the lead wire to enter;

[0029] 4. Connect the blower to the air supply pipe, start the blower, let the wind drive the plastic ball to move along the pre-buried pipe, and follow up to loosen the lead wire. After the plastic ball is blown out from the other section of the embedded pipe, the lead wire passes through the embedded pipe smoothly;...

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Abstract

The invention discloses a construction method, particularly discloses a construction method using a long-distance preset concealed pipe to sleeve a lead and belongs to the technical field of construction processes of ancillary facilities of constructional engineering. The construction method is convenient to construct and operate, reliable and rapid in threading and relatively low in constructioncost. The construction method comprises the steps of pneumatically pre-sleeving the lead, pre-sleeving the lead with a transition line, and pulling the transition line to arrange an electrical pipeline. When the lead is pneumatically pre-sleeved, a hollow plastic ball is driven by high-pressure gas, so that the hollow plastic ball guides the high-strength flexible lead to penetrate through the corresponding long-distance preset concealed pipe to finish the pneumatic pre-sleeving of the lead.

Description

technical field [0001] The invention relates to a construction method, in particular to a construction method for threading long-distance preset hidden pipes, and belongs to the technical field of construction technology for auxiliary facilities of construction projects. Background technique [0002] For modern residences, public buildings and other projects, in order to pursue the beauty of the building, it is generally chosen to lay most of the electrical pipelines with hidden pipes. In this way, the electrical pipelines can be reserved synchronously during the construction of the main structure, saving a lot of wiring time for the later pipeline construction. But then there were many problems. For example, when the threading operation is carried out in the later stage, due to the long embedded pipeline, the traditional steel wire threading may not be able to penetrate the reserved pipeline. Even if it is required by the code that the line length of the pre-embedded pipe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/08H02G3/38
CPCH02G1/086H02G3/38
Inventor 李根赵翼李朝康
Owner CHINA 19TH METALLURGICAL CORP
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