Cable trench structure

Abstract

The invention relates to a cable trench structure. The cable trench structure comprises: a cable trench, a water seepage pipe, a first reducer pipe, a first floating ball, a second reducer pipe, a first partition plate, a second floating ball and an alarm unit. The buoyancy of the underground water reversely infiltrating into a first pipe section can enable the first floating ball to float upwards, so that the first floating ball blocks the opening in the upper end of the first reducer pipe, the underground water can be prevented from continuing to be reversely infiltrated, and the cable is protected from being eroded by the reversely infiltrated underground water. The upper end opening of the first reducer pipe is blocked by the first floating ball, so that accumulated water in the cable trench cannot be discharged downwards through the upper end opening of the first reducer pipe, and the accumulated water is stored above the first reducer pipe. The buoyancy of the accumulated water stored above the first reducer pipe can drive the second floating ball to float to the opening in the upper end of the second reducer pipe, so that the alarm unit is triggered to send out an alarm signal, a worker can find the underground water reverse osmosis condition in time, and meanwhile, the accumulated water in the cable trench can be early warned in time.

Description

technical field [0001] The invention relates to the technical field of cable trench structures, in particular to the cable trench structure. 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 carrier of cable laying, cable trench is an important construction content in various infrastructure projects. When there is too much water in the cable trench, it is easy to 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 seep into the underground soil layer from the bottom of the seepage pipe. [0003] In the coastal areas, the perennial precipitation is relatively large and the groundwater table is relatively high. The groundwater is easy to reverse seepage from the seepage pipe, but instead pours into the cable trench and damages the cabl...

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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