Cable conduit sounder

Abstract

The invention relates to a cable tube detector, especially used to detect the internal video picture of cable tube at 150-200mm diameter and clean the tube, wherein it comprises power device, video device, cleaner and controller; the video device is partly fixed at the positioning hole of front chamber of power device; the cleaner is partly fixed at the connecting tube of tail chamber of power device; the controller via power cable wire and signal cable wire is partly connected to the power wire plug and signal cable wire plug of power device, to output power; and the video detector at the front of detector can watch into the tube; when it meets barrier, the operator can on time start the cleaner, to improve the tube quality and cable quality, to improve the operation reliability.

Description

technical field [0001] The invention relates to a cable duct detector, in particular, it is used for observing video images inside a cable duct with a diameter of 150-200mm and cleaning the duct. Background technique [0002] With the advancement of the urban power distribution network reconstruction project, the proportion of cables in the urban power distribution network is increasing. The quality of the cable duct will directly affect the quality of the cable laying and the stability of the operation in the future, and it will directly affect the entire system. Safe operation of urban power distribution network. [0003] The construction quality of the pipeline is directly related to the laying quality of the cable. The traditional pipeline inspection method uses a sample cable (about 8 meters long), with an iron bull at the front, a cleaning cotton cloth at the end, and a PVC tape on the cable body. The acceptance quality of the pipeline is determined by pulling the sa...

AI Technical Summary

Problems solved by technology

[0004] 1. The quality of the pipeline cannot be displayed intuitively

It is found that there are defects in the quality of the pipeline, but it is impossible to know what kind of defect is and where the defect is, and it is impossible to formulate a targeted solution to solve the defect, and the construction efficiency is low

[0005] 2. The effect of removing residues in the pipeline is not obvious

Since the size of the installed iron ox is smaller than the diameter of the pipe, the residues on some pipe walls cannot be clearly seen, and because the iron ox removes the residue by impact, the residue after removal (such as cement blocks) may leave sharp Edges and corners, leaving hidden dangers for cable laying

[0006] 3. The laying of test cables is inconsistent with the actual laying of cables

Since the length of the test cable is quite different from that of the actual laying cable, and the friction force on the outer sheath is small during laying, it is impossible to test the laying condition under greater friction force, and it is easy to misjudge the quality of the cable duct

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