Cable trench side wall formwork truss system

Abstract

The invention belongs to the field of electrical engineering, and particularly relates to a cable trench side wall template truss system. The cable trench side wall template truss system comprises a truss system, a drainage system and a trench groove, wherein the trench groove is placed right above the truss system, an upper end of an outer side of the drainage system is connected with a lower end of an outer side of the truss system, the other end of an upper truss rod is connected with a truss rotation shaft platform, one end of a lower truss rod is connected with the truss rotation shaft platform, a circumferential rod is arranged in a low rail groove, a sliding block is connected with a second rail rod by the circumferential rod and is embedded into a lower rail groove, lower side of inclined plates are connected with bottom ends of inner sides of side walls of cable trenches, the inclined plates are connected by a high side, a water suction hole is formed in an upper end of an inner side of a drainage box, a water storage groove is formed in an inner side of the drainage box, water outlets are uniformly formed in a bottom end of the drainage box. The cable trench side wall template truss system has the beneficial effects that (1) a humid environment caused by water accumulation is prevented; (2) the insulativity of a cable is prevented from being reduced, and the cable is prevented from being damaged; (3) the cable trench side wall template truss system has various electric leakage protection functions; (4) the insect killing efficiency is improved; and (5) a temperature safety guarantee is formed.

Description

technical field [0001] The invention relates to a multifunctional truss system, more specifically to a formwork truss system for the side wall of a cable trench, and belongs to the field of engineering electrical industry. Background technique [0002] With the increasing economic level of our country, the national power grid laying and erecting project volume has increased significantly, so a large number of cables need to be laid simultaneously. As an important part of transmission lines, they are mostly used for the laying of substations or urban underground lines. However, due to the influence of the weight of the cable itself, the safety of high voltage and the laying economic angle, etc., the engineering method of cable trench laying is usually used. At the same time, the grounding construction is carried out as a safety measure, and the cover plate is covered on the ditch surface to form a dedicated underground channel for the complete laying of cables. On the one han...

AI Technical Summary

Problems solved by technology

[0004] (1) The cross section of the current cable trench is a rectangular structure with an upper opening. Relative gaps are set on the top of the inner wall. Cover plates are installed at the gaps and sealed. However, after a period of use, the seal will also fail. If If there is water near the cable trench, the water will flow into the cable trench, forming a humid environment, which will cause the cable to be damp and corroded for a long time.

[0005] (2) When the rainy season occurs, the above situation will be further aggravated. A large amount of rainwater will pour into the cable trench, which will submerge the cable, greatly reduce the insulation of the equipment, and cause flashover accidents in node equipment such as substations, which will affect the safety of power supply. and device running

[0006] (3) When the above situation occurs, not only will it be accompanied by a decrease in insulation, but there is also a high probability that the cable will be damaged and high-voltage leakage will occur. If the protection function fails, it will also cause a wider range of high-voltage leakage leakage, causing more serious damage

[0007] (4) When the above-mentioned stagnant water exists for a short time, it will breed or attract mosquitoes, rats and ants into the cable ditch due to the humid environment. It will also fail after washing, so it can only be repeated in large quantities, increasing the workload

[0008] (5) Due to operations such as cover plate sealing, the cable trench is a relatively sealed non-flowing space. Firstly, dense cable transmission will cause a lot of heat. Second, when the sun shines directly, the heat will continue to penetrate and store in this space. Dissipation, and the ventilation operation is not realistic, if there is no effective heat dissipation means, it will cause the rubber of the cable sheath or other parts in the trench to be coked or seriously aged due to overheating, and even a fire accident will occur in the severe case

Images