cable trench structure

Abstract

The present invention relates to cable trench structures. The cable trench structure includes: a cable trench, a water seepage pipe, a first reducing pipe, a first floating ball, a second reducing pipe, a first partition plate, a second floating ball and an alarm unit. The buoyancy of the groundwater in the first pipe section will cause the first floating ball to float, so that the first floating ball blocks the upper end opening of the first reducing pipe, thereby preventing the groundwater from continuing to reverse seepage and protecting the cable from reverse osmosis. erosion of groundwater. Since the first floating ball blocks the upper end opening of the first reducing pipe, the accumulated water in the cable trench cannot be discharged downward through the upper opening of the first reducing pipe, and the accumulated water will be stored in the first reducing pipe. top of the tube. The buoyancy of the water stored above the first reducing pipe will drive the second floating ball to float up to the opening of the upper end of the second reducing pipe, so as to trigger the alarm unit to send an alarm signal, so that the staff can timely detect the situation of groundwater reverse osmosis , and at the same time, it can timely warn of water accumulation in the cable trench.

Description

technical field [0001] The invention relates to the technical field of cable trench structures, in particular to cable trench structures. Background technique [0002] In electrical facilities such as substations, ring network cabinets, and power distribution rooms, cables need to be buried in underground caverns. As the cable laying carrier, the cable trench is an important construction content in various infrastructure projects. Too much water in the cable trench can easily damage the cable. In order to drain the cable trench, a seepage pipe is usually buried at the bottom of the cable trench, and the water in the cable trench can penetrate into the underground soil layer from the bottom of the seepage pipe. [0003] In coastal areas, the annual precipitation is large and the groundwater level is high. Groundwater is easy to reverse seepage from the seepage pipe, but it is poured back into the cable trench to damage the cable. Moreover, if the reverse osmosis of ground...

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a cable trench structure that can prevent groundwater from seeping back into the cable trench and can detect reverse seepage in time for the problem that groundwater is easy to reverse seepage from the seepage pipe to the cable trench and the reverse seepage cannot be detected in time

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