CN2425346Y

CN2425346Y - Overhead conducting wire outer diameter ruler

Info

Publication number: CN2425346Y
Application number: CN 00214900
Authority: CN
Inventors: 于兴利
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-26
Filing date: 2000-05-26
Publication date: 2001-03-28
Anticipated expiration: 2010-05-26

Abstract

The utility model relates to an outer diameter ruler for an overhead conducting wire. The top of a V-shaped board 2 is provided with a scale disk 1, and the bottom of the V-shaped board 2 is provided with a connecting head 4 which is connected with an operating lever 7. The utility model has the characteristics of reasonable structure, exact measure, convenient use, high safety, etc., and the utility model can work in a live mode. When the utility model is matched with a peeling machine for an overhead cable, dimensions of the outer diameter of the overhead cable can be measured, accurate numerical value is provided for peeling cables, and live fire welding is realized. Meanwhile, convenient conditions are provided for line management and live work, the on-site operation of a live conductive body is convenient, and therefore, the utility model is an ideal matching device for maintaining or managing lines.

Description

Aerial condutor external diameter chi

The utility model relates to surveying instrument, more particularly is the aerial condutor external diameter chi that is used for unsettled or built on stilts right cylinder measuring outside diameters such as lead, pipeline.

Usually the aerial condutor known to the people has the branch of bare wire and insulated wire, its outside diameter measuring, usually when line outage, select for use the direct method of measurement to carry out measured value, present widespread usage along with overground cable, the measurement of charged built on stilts or unsettled insulated conductor outside dimension, especially when the maintenance of lead and overground cable overlap joint live wire, must power failure just can measure value, when circuit normally moves, the annual chance that has a power failure has only 1-2 time, wait for that like this power failure chance tends to influence normal dilatation or maintenance engineering progress, can cause some inevitable losses because of power failure simultaneously, if search conductor size by raw file, for emergent or field construction is on-the-spot, can bring inconvenience, have problems such as circuit year corrosion poor accuracy of a specified duration, therefore not satisfy the dilatation of present regular link or maintenance and user's demand.

The purpose of this utility model is to overcome the deficiency of prior art, but has aerial condutor external diameter chis rational in infrastructure, characteristics such as measurement is accurate, hot line job esy to use, safe and reliable.Especially be used with the overground cable peeling machine, can survey the overground cable outside dimension,, realized charged starting to exchange fire for cable peeling provides accurate numerical value.Simultaneously also to line management and the hot line job condition of providing convenience.

Aerial condutor external diameter chi of the present utility model is to be made of index dial 1, V shaped slab 2, zero standard knowledge 5, connector 4, control lever 7, fixture 8 etc., it is to have index dial 1 on the top of V shaped slab 2, the bottom of V shaped slab 2 has connector 4, connector 4 is connected with control lever 7, wherein: V shaped slab 2, index dial 1, connector 4, control lever 7 can select for use macromolecular material or metal material to make, and control lever 7 selects for use insulating material to make.Described V shaped slab 2 is to leave V-arrangement angle a on V shaped slab 2, leaves chute between two V shaped slabs, and T-shape ski board 3 is inserted in the chute, has zero standard at T-shape ski board 3 tail ends and knows between 5, two V shaped slabs with fixture 8 connections.It is tangent with tested lead 6 simultaneously with the top of two adjacent sides of the V-arrangement angle a on the V shaped slab 2 and T-shape ski board 3, come the size of measurement and positioning decision V-arrangement angle a value, usually a value can be selected between 5 °-160 °, and V-arrangement angle a summit A extremely folded tested lead 6 becomes the multiple relation with the distance A B of T type slide plate 3 points of tangency B with the length D of these tested lead 6 diameters.Be AB=β D, β is a multiple, and multiple mitre a value more is more little.Usually multiple β preferably is selected between the 0.1-10.If 2 times of measured value magnifying diameter select AB=60mm, this moment diameter of wire D=30mm, V-arrangement angle a value is fixed.Described index dial 1 is meant the ruler of relevant electrician's tables of comparisons such as physical dimension of scale markers such as having length, area or lead and overground cable, it and V shaped slab 2 can be one, also can be split, usually preferably an end of index dial 1 is connected or disjunctor with V shaped slab 2, is printed on length, unit of measurement for area scale marker on index dial 1 one sides.The normal length value is meant the diameter value of tested lead 6, and area value is meant the respective value of the sectional area and the diameter of tested lead 6.The another side can be printed on relevant electrician's tables of comparisons such as physical dimension of lead and overground cable.Straight-bar or folding rod that described control lever 7 selects for use insulating material to make, easy accessibility when easy to use, connect firm, handling safety etc.

Description of drawings: Fig. 1, aerial condutor external diameter chi structural representation

1-index dial, 2-V shape plate, 3-slide plate, 4-connector, the knowledge of 5-zero standard, the tested lead of 6-, 7-control lever, 8-fixture

Further specify the utility model structure in conjunction with the accompanying drawings: as shown in the figure, aerial condutor external diameter chi is that the end at V shaped slab 2 has index dial 1, have connector 4 at V shaped slab 2 other ends, connector 4 is selected plum blossom joint 4 for use, connector 4 is connected with control lever 7, control lever 7 selects for use insulating material to make, it is to leave V-arrangement angle a on V shaped slab 2, between two V shaped slabs, leave chute, T-shape ski board 3 is inserted in the chute, available elastic force friction block positions between chute and the T-shape ski board 3, and T-shape ski board 3 tail ends have zero standard to be known between 5, two V shaped slabs with fixture 8 connections.Set when tested lead 6 sandwiches in a angle of V shaped slab 2, two adjacent sides of V-arrangement angle a and the top of T-shape ski board 3 are tangent with tested lead 6 respectively, determine the size of V-arrangement angle a value this moment, utilize similar triangle theory when to establish V-arrangement angle a summit be A to the distance A B=60mm of folded tested lead 6 and T type slide plate 3 points of tangency B, corresponding sides are proportional to be drawn, this moment, the diameter of tested lead 6 was 30mm, then zero standard is known the scale that 5 scales of aiming at are tested lead 6 diameters, this moment, this V shaped slab angle a value was selected, usually select for use AB to become the multiple relation with tested lead 6 diameter D, be AB=β D, β is a multiple, and multiple mitre a value more is more little.This example is selected for use AB to be 2 times of diameter to be example.When establishing AB=60mm, β=2, D=30mm then, selected a value.During use, the base of moving T type slide plate 3 to V shaped slab is that zero standard is known 5 maximal values of aiming at scale earlier, tested lead 6 is sandwiched in a angle of V shaped slab 2, lifting bar vertically strains, two adjacent sides of V-arrangement angle a and the top of T-shape ski board 3 are tangent with 6 three in tested lead respectively, and the scales that the value of reading zero standard knowledge this moment 5 is aimed at are tested lead 6 diameter values.

Aerial condutor external diameter chi of the present utility model has solved safeguards lead for a long time, especially the cutting of overground cable and overlap fiery operation, need power operation, influence the operation of whole circuit, cause problems such as unnecessary loss simultaneously, especially cooperate the cable peeling machine to use, overground cable overlap joint live wire or wire line are safeguarded, realize hot line job, made things convenient for the execute-in-place of energized conductor widely.Be to be used for safeguarding or the desirable corollary apparatus of managing line.

Claims

1, a kind of aerial condutor external diameter chi is characterized in that having index dial (1) on the top of V shaped slab (2), and the bottom of V shaped slab (2) has connector (4), and connector (4) is connected with control lever (7).

2, aerial condutor external diameter chi as claimed in claim 1, it is characterized in that described V shaped slab (2) is to leave V-arrangement angle a on V shaped slab (2), between two V shaped slabs, leave chute, T-shape ski board (3) is inserted in the chute, have zero standard to know (5) on the tail end of T-shape ski board (3), two V shaped slabs connect with fixture (8).

3, aerial condutor external diameter chi as claimed in claim 2 is characterized in that leaving on the described V shaped slab (2) V-arrangement angle a, and its a value can be chosen between 5 °-160 °.

4, aerial condutor external diameter chi as claimed in claim 1 is characterized in that described index dial (1) one end is connected with V shaped slab (2), and wherein a side is printed on length, area scale marker.