Flexible antipriming pipe

Abstract

The invention relates to a flexible porous pipe, which belongs to a technical field of a protective inner pipe laid in a cable. The invention is characterized in that: one side of a ring-shaped polyester fabric is folded into two or more reversed U-shaped unit channels; the other side forms a single reversed U-shaped unit channel; the vertical length of the reversed U-shaped unit channels (1) andthe single reversed U-shaped unit channel extends infinitely; the superposition parts between the reversed U-shaped unit channels (1) and the single reversed U-shaped unit channel are sewed together.The flexible porous pipe presents a novel concept, reasonable structure, simple technique, high utilization rate of manufacture material and low manufacture cost. As a protective inner pipe adopted during cable laying, the flexible porous pipe disclosed by the invention is applicable for various cable laying environments and is capable of separating crossed cable and decreasing rub and damage on the cable surface during laying and pulling; furthermore, the invention is capable of fully increasing the utilization rate of the pipe, saving the underground space and the external pipe resource, decreasing material cost, effectively decreasing the amount of a cable laying project, shortening the work period and decreasing the project cost and expense.

Description

technical field [0001] The invention belongs to the technical field of cable laying protection inner tubes, and in particular relates to a flexible porous tube. Background technique [0002] In order to avoid the accumulation of cables and cable support devices on the ground, and to prevent the cables from being damaged by weather conditions, water and other environmental factors, optical fiber communication cables are generally laid through underground pipelines, and multiple cables need to be placed in the same pipeline. , in order to separate the cables placed in the same pipe and prevent the surfaces of the cables from rubbing against each other during the laying process, the traditional method is to put a group of hard protective inner tubes of different sizes into the pre-buried pipes. Put the cable into the hard protective inner tube, and only put one cable in the middle of each protective inner tube, and the inner diameter of the protective...

AI Technical Summary

Problems solved by technology

However, the main structure of the existing soft cannula is that the two sides of the multi-layer flexible material layer are seamed to form corresponding channels. Generally, the flexible material layer needs to be braided or cut into long straight strips, and the width of each layer from the middle layer to the outside needs to be gradually increased. increase, and then all the flexible material layers are neatly aligned on both sides and then stitched. The process of weaving or cutting the flexible material layers into straight strips and sewing structures on both sides is relatively complicated, and the utilization rate of flexible materials is low, which increases the product cost. , In addition, the seam part reduces the smoothness of the interior to a certain extent, and one more seam line has a certain negative impact on the cable threading

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