Power line crossing protection device

Abstract

The invention provides an electric power line crossing protection device comprising an insulation shielding sleeve, transmission parts and a power conversion part; the transmission parts and the power conversion part are arranged in the insulation shielding sleeve; each transmission part comprises three concave pulleys; one concave pulley is arranged on the top, the other two are arranged below, and the three pulleys are mutually connected by connecting springs, thus enabling crossed wires to penetrate and are fixed between the three concave pulleys; the power conversion part comprises a limit horizontal connecting rod and a driving rod used for pushing the limit horizontal connecting rod to slide; the central axles of the three concave pulleys are connected by the limit horizontal connecting rod; two ends of the limit horizontal connecting rod are respectively provided with a limit telescopic joint; the driving rod vertically moves downwards so as to push the limit horizontal connecting rod to move, thus enabling the limit telescopic joints to push the insulation shielding sleeve, and driving the electric power line crossing protection device to move forwards along the crossed wire. The electric power line crossing protection device is simple in structure, low in supplement cost, and not limited by places.

Description

technical field [0001] The invention relates to the technical field of power line protection devices, in particular to a power line crossing protection device. Background technique [0002] At present, urban power grids are as dense as "spider webs", and it is inevitable for new lines to cross over existing lines with live electricity. The process of crossing construction of transmission lines is generally as follows: construction preparation → erection of spanning frame → power failure capping → deployment of ground wire → installation of accessories → removal of spanning frame and sealing rope. The spanning frames erected during spanning construction in the related art include steel pipe type spanning frames, false cross-arm spanning frames, pole-holding type spanning frames, and suspension cable type spanning frames. However, the use of these spanning frames has the following problems: 1. The power failure time is too long ; 2. The erection cost and labor cost are high; ...

AI Technical Summary

Problems solved by technology

The spanning frames erected during spanning construction in the related art include steel pipe type spanning frames, false cross-arm spanning frames, pole-holding type spanning frames, and suspension cable type spanning frames. However, the use of these spanning frames has the following problems: 1. The power failure time is too long ; 2. High erection costs and labor costs; 3. High site limitations when setting up the spanning frame; 4. Most people work on the spanning frame, and there is a risk of falling from high altitude

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