Live working calipers for overhead cables

Abstract

The invention discloses a live working caliper for overhead cables, aiming to provide a caliper for overhead cables that can directly measure the caliper of overhead cables and has good measurement accuracy, so as to make preliminary preparations for electric power repair construction. Live working caliper for cables. It includes a support vertical bar, an upper limit block, a middle limit block and a lower limit block are arranged on the outer surface of the support vertical bar, and a scale line is arranged on the outer surface of the support vertical bar; a floating positioning reference device, a floating positioning reference The device includes a floating sleeve slidably arranged on the support vertical rod and a reference positioning rod arranged on the floating sleeve and perpendicular to the support vertical rod; an adaptive diameter measuring device, which includes a sliding sleeve arranged on the support vertical rod The diameter measuring sliding sleeve, the bracket arranged on the measuring diameter sliding sleeve, the diameter measuring rod located above the bracket and parallel to the reference positioning rod, the camera device arranged on the diameter measuring sliding sleeve or the bracket and the trigger switch arranged on the bracket.

Description

technical field [0001] The invention relates to a caliper, in particular to a live working caliper used for overhead cables. Background technique [0002] Power emergency repair construction requires a lot of preparatory work, among which on-site survey work is one of the preparatory work for electric power emergency repair construction. During on-site survey, it is necessary to clarify the wire type and specification of the line. Since the on-site survey work is only the preparatory work, the survey personnel will not cut off the power of the line, and then climb to the pole to measure the type and specification of the wire. The wire type and specification are judged by experience, and the error rate of this kind of experience judgment is relatively high. [0003] Further, in order to improve this problem, some inventors have invented a high-altitude wire caliper device, such as the publication number is CN207850248U, and the patent name is a kind of high-altitude wire cal...

AI Technical Summary

Problems solved by technology

Although this application can directly measure the diameter of high-altitude live wires on the surface, because it uses the surveyors to drive the vernier caliper to continue to move down slowly through the insulating rod, and the moving outer measuring claws are stretched through the wires to achieve cable diameter measurement. In this process, the surveyors need to operate carefully, and the measuring claws of the vernier caliper cannot be deflected (the plane where the two measuring claws are located must be kept perpendicular to the wire), otherwise the outer diameter of the cable measured by the vernier caliper will be too large, and the surveyors are on the surface. During operation, it is often difficult to ensure the state of the measuring claws of the vernier caliper, so the high-altitude wire diameter measuring device of this application has poor accuracy in measuring the outer diameter of the cable in practical applications.

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