Waterproof plugging device for power cable pipeline

Abstract

The present invention discloses a waterproof plugging device for a power cable pipeline. The device comprises a pipeline 1, a power cable, a pipeline 2, a plugging housing, a sealing element 1, a sidesealing structure, a pin shaft, an upper cover, an upper plugging structure, a sealing pad, a sealing ring, a lock, a fixed base, a water pumping pipe, a sealing element 2, a water collection cavity,a waterproof separator, a right water pumping channel, screws and a left water pumping channel. The waterproof plugging device for a power cable pipeline is simple and reasonable in structure and lowin production cost, and the waterproof separator is arranged to effectively isolate water between the pipeline 1 and the pipeline 2 so as to avoid a phenomenon of water in a pipeline influencing thewhole pipeline; the right water pumping channel and the left water pumping channel are arranged to facilitate pumping of water generated from the pipeline; the side plugging structure and the upper plugging structure are arranged to effectively perform compression and sealing of the power cable, and the upper side between the connection of pipelines is subjected to tripling compression and sealingto effectively prevent water from flowing through the side surface of the power cable so as to improve a sealing effect.

Description

Technical field: [0001] The invention relates to the field of power systems, in particular to a waterproof sealing device for power cable ducts. Background technique: [0002] With the rapid development of my country's electric power and communication industry, the laying technology of pipeline cables has become more and more popular. Underground cable pipes are generally made of various plastics, iron (steel), concrete, etc., and are discharged in the ground dug in advance. In the trench, and set manpower holes at a certain distance, as a working point for wiring, inspection, maintenance or management lines. After the pipeline is constructed, cement is usually used to cover the entire cable duct. However, since the manhole is connected to the pipeline, if the cable duct here is not sealed or the seal is not good, rainwater, sewage, and silt will often fill the pipeline after a long time. , or rats and insects, etc., and the rats gnaw on the cable, multiply, die and rot, cau...

AI Technical Summary

Problems solved by technology

After the pipeline is constructed, cement is usually used to cover the entire cable duct. However, since the manhole is connected to the pipeline, if the cable duct here is not sealed or the seal is not good, rainwater, sewage, and silt will often fill the pipeline after a long time. , or rats and insects, etc., and the rats gnaw on the cable, multiply, die and rot, causing the pipe to be blocked; at the same time, because the pipes are connected, the pumping will cause backflow, which cannot be pumped out, especially when there is a problem with a certain section of the cable. It is difficult to eliminate faults due to the inability to pump water in sections. Therefore, the sealing technology between cables and cable ducts has always been a difficult problem to be solved

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