Insulated retractable ruler

A technology of telescopic ruler and clip, which is applied in the direction of the ruler for direct reading, can solve the problems of cumbersome operation and low accuracy of secondary measurement, and achieve the effects of improving measurement accuracy, preventing electric shock, and being easy to carry

Inactive Publication Date: 2015-12-30
STATE GRID SHANDONG ELECTRIC POWER +1
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Problems solved by technology

[0003] In the daily measurement work of transmission lines, non-insulated measuring tools such as tape measure, line ruler, and steel ruler are generally used for measurement work far away from live parts; while measurement work close to live parts is generally measured with insulating ropes, then use tape measure , wire ruler, steel ruler, etc. to measure the specific value of the length of the insulating rope, which not only leads to cumbersome operation, but also has low secondary measurement accuracy

Method used

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Embodiment Construction

[0022] In order to clearly illustrate the technical features of this solution, the specific implementation of the present invention will be further described below according to the accompanying drawings.

[0023] Such as Figure 1~Figure 5 As shown, an insulating telescopic ruler includes an outer telescopic ruler 1, an inner telescopic ruler 2 sleeved inside the outer telescopic ruler 1, and an elastic buckle mechanism; the length of the outer telescopic ruler 1 and the inner telescopic ruler 2 is 50 centimeters; The outer telescopic ruler 1 and the inner telescopic ruler 2 are made of epoxy glass fiber reinforced plastic; the outer telescopic ruler 1 and the inner telescopic ruler 2 are provided with a scale 3, and the surface of the scale 3 is coated with luminous material, which is easy to see the scale at night; The ruler 1 and the inner telescopic ruler 2 are respectively provided with matching chute 10 and slider 11, and the outer telescopic ruler 1 and the inner telesc...

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Abstract

The invention relates to a transmission line measuring tool and specifically relates to an insulated retractable ruler. The insulated retractable ruler comprises an outer retractable ruler, an inner retractable ruler sleeved inside the outer retractable ruler, and an elastic buckling mechanism. The outer retractable ruler and the inner retractable ruler are made of insulating materials; the outer retractable ruler and the inner retractable ruler are provided with scales; and the outer retractable ruler and the inner retractable ruler can slide relatively along the length direction. The elastic buckling mechanism comprises a clamp piece, a hinge shaft, a torsion spring and stop reversed teeth, wherein one end of the clamp piece is provided with a clamping head; the middle portion of the clamping piece is hinged to the side wall of the outer retractable ruler through the hinge shaft; the torsion spring is sleeved outside the hinge shaft; the clamping head deviates to the inner side under the action of the torsion spring; the stop reversed teeth are arranged on the inner retractable ruler at intervals along the length direction; and the stop reversed teeth are cooperated with the clamping head. The insulated retractable ruler can simplify the measuring steps of the power transmission line, improves measurement accuracy and is convenient to carry.

Description

technical field [0001] The invention relates to a power transmission line measurement tool, in particular to an insulating telescopic ruler. Background technique [0002] Transmission line measurement is an important part of transmission line work. Distance measurement is required for the distance between transmission lines to trees and houses, the distance between transmission line diversion lines and towers, and the distance between transmission line crossings. [0003] In the daily measurement work of transmission lines, non-insulated measuring tools such as tape measure, line ruler, and steel ruler are generally used for measurement work far away from live parts; while measurement work close to live parts is generally measured with insulating ropes, then use tape measure , wire ruler, steel ruler, etc. to measure the specific value of the length of the insulating rope, which not only leads to cumbersome operations, but also has low secondary measurement accuracy. Conte...

Claims

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Application Information

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IPC IPC(8): G01B3/08
Inventor 李真侯王宾韩峰陈显达陈强刘功庆杜宪斌张守平刘传民何滨
Owner STATE GRID SHANDONG ELECTRIC POWER
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