CN214895493U - Wire fixing device based on insulated wire voltage measurement - Google Patents

Wire fixing device based on insulated wire voltage measurement Download PDF

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Publication number
CN214895493U
CN214895493U CN202120909171.1U CN202120909171U CN214895493U CN 214895493 U CN214895493 U CN 214895493U CN 202120909171 U CN202120909171 U CN 202120909171U CN 214895493 U CN214895493 U CN 214895493U
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wire
measuring arm
wire clamping
clamping measuring
arm
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李国胜
周梅
王盼
杨毅
彭娟娟
高千
戢凯飞
李智伟
陈卫星
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State Grid Corp of China SGCC
Wuhan Electric Power Technical College
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State Grid Corp of China SGCC
Wuhan Electric Power Technical College
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Abstract

The utility model discloses a lead fixing device based on insulated lead voltage measurement, which comprises a seat body, a first clamp wire measuring arm and a second clamp wire measuring arm, wherein the seat body is internally provided with a through hole which is communicated up and down and is used for fixing a voltage measuring micro-needle device; the lower end of the first wire clamping measuring arm and the lower end of the second wire clamping measuring arm are hinged with the top of the seat body respectively, and the upper end of the first wire clamping measuring arm is hinged with the upper end of the second wire clamping measuring arm; the pedestal is the tubular structure, and the breach that is used for installing first card line measuring arm and second card line measuring arm is seted up at the top of pedestal. The utility model has the advantages that: wire fixing device utilizes two card line measuring arms to articulate on the pedestal, will the micropin device is installed in the pedestal, will be surveyed the wire card and go into between two card line measuring arms spacingly, puncture the micropin again and be surveyed the inside metal core contact of wire behind the insulating layer of wire, guarantee among the voltage measurement process that the skew can not take place for the wire of being surveyed and rock, guaranteed measurement accuracy.

Description

Wire fixing device based on insulated wire voltage measurement
Technical Field
The utility model relates to an electric power engineering measures the technique, concretely relates to wire fixing device based on insulated wire voltage measurement.
Background
The measurement operation of voltage and current is the basic measurement operation with the highest operating frequency in power engineering measurement, power science research and power production work. The current measurement operation realizes the direct current measurement on the insulated conductor through the split core type current transformer, and brings great convenience to the power measurement work. Patents ZL201611179847.6 "a voltage measuring microneedle device" and ZL201710175251.7 "an insulated wire voltage tester" have been granted, and direct voltage measurement on an insulated wire can be realized by "a voltage measuring microneedle device made of a carbon nanomaterial or a high-conductivity high-mechanical-property copper alloy".
However, there is no wire fixing structure dedicated for the above-mentioned micro probe device, and when the above-mentioned micro probe device is used to measure the voltage of the insulated wire, the measured wire swings indefinitely, and the measurement result has a large deviation, which brings great inconvenience to the actual operation process. Therefore, how to fix the insulated wire in the voltage measurement process is a key factor affecting the accuracy of the measurement result.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a multi-functional wire fixing device based on insulated wire voltage measurement, use with the cooperation of current voltage measurement micropin device, reach the purpose of convenient, accurate measurement insulated wire voltage.
The utility model adopts the technical proposal that: a lead fixing device based on voltage measurement of an insulated lead comprises a base body, a first lead clamping measuring arm and a second lead clamping measuring arm, wherein a through hole which is communicated up and down is formed in the base body and used for fixing a voltage measuring micro-needle device; the lower end of the first wire clamping measuring arm and the lower end of the second wire clamping measuring arm are hinged to the top of the seat body respectively, and the upper end of the first wire clamping measuring arm is hinged to the upper end of the second wire clamping measuring arm.
According to the scheme, the base body is of a cylindrical structure, and the top of the base body is provided with a notch for mounting the first wire clamping measuring arm and the second wire clamping measuring arm; the first wire clamping measuring arm and the second wire clamping measuring arm are rod pieces with the same structure; the two wire clamping measuring arms are respectively hinged with the base body through a bolt A; the upper ends of the two wire clamping measuring arms are hinged through a bolt B; when the upper ends of the two wire clamping measuring arms are not hinged and fixed, the upper ends of the two wire clamping measuring arms can be respectively turned over to be in a horizontal or vertical state around the lower ends.
According to the scheme, the hinge point of the first wire clamping measuring arm and the seat body and the hinge point of the second wire clamping measuring arm and the seat body are respectively positioned at the two ends of the diameter of the top port of the through hole; the first wire clamping measuring arm and the second wire clamping measuring arm are perpendicular to each other.
According to the scheme, length scale marks are arranged in the length direction of the first wire clamping measuring arm and/or the second wire clamping measuring arm.
According to the scheme, sectional area scale marks are arranged in the length direction of the first clamp line measuring arm and/or the second clamp line measuring arm, and the zero point position of the sectional area scale marks is located at the hinge point of the upper end of the clamp line measuring arm.
According to the scheme, a level gauge is arranged on the first wire clamping measuring arm and/or the second wire clamping measuring arm; the outer wall of the seat body is provided with height scale marks along the axis direction.
According to the scheme, the transparent protractor is arranged at the hinged position of the upper ends of the first wire clamping measuring arm and the second wire clamping measuring arm.
The utility model has the advantages that: 1. the wire fixing device of the utility model utilizes two wire clamping measuring arms to be hinged on the seat body, the micro-needle device is arranged in the seat body, the measured wire is clamped between the two wire clamping measuring arms for limiting, and then the micro-needle is contacted with the metal wire core inside the measured wire after penetrating the insulating layer of the measured wire, so that the measured wire is prevented from deviation and shaking in the voltage measuring process, and the measuring precision is ensured; 2. the utility model designs length scales and sectional area scales on two wire clamping measuring arms, so that other parameters of the measured wire can be obtained simultaneously when measuring voltage, and then whether the measured wire is qualified is judged; 3. the utility model can be used for measuring length, angle, leveling and the like, and has various functions; 4. the utility model discloses simple structure, reasonable in design, it is with low costs.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic connection diagram of the first wire clamping measuring arm and the second wire clamping measuring arm in this embodiment.
Fig. 3 is a schematic connection diagram of a conventional voltage measurement microneedle device and the present embodiment.
FIG. 4 is a schematic diagram of the embodiment for measuring length.
FIG. 5 is a diagram illustrating the angle measurement according to the fourth embodiment.
Fig. 6 is a first application diagram of the sixth embodiment.
Fig. 7 is a second application diagram of the sixth embodiment.
FIG. 8 is a schematic diagram of an application of the fifth embodiment.
Wherein: 1. a first wire clamping measuring arm; 2. a second wire clamping measuring arm; 3. a level gauge; 4. a base body; 5. a wire to be tested; 5.1, an insulating layer; 5.2, a metal wire core; 6. microneedles; 7. tightly pushing the platform; 8. a screw push rod; 9. protecting the cylinder chamber; 10. a bolt A; 11. a bolt B; 12. a test pin; 13. length scale lines; 14. sectional area scale marks; 15. a plug-in connector; 16. a neon tube.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the lead fixing device based on voltage measurement of an insulated lead includes a base 4, a first wire clamping measuring arm 1 and a second wire clamping measuring arm 2, wherein the base 4 is provided with a through hole penetrating up and down for fixing a voltage measuring micro-needle device; the lower end of the first wire clamping measuring arm 1 and the lower end of the second wire clamping measuring arm 2 are hinged to the top of the seat body 4 respectively, and the upper end of the first wire clamping measuring arm 1 is hinged to the upper end of the second wire clamping measuring arm 2.
In the utility model, the seat body 4 is a tubular structure, and the top of the seat body 4 is provided with a notch for installing the first wire clamping measuring arm 1 and the second wire clamping measuring arm 2; the first wire clamping measuring arm 1 and the second wire clamping measuring arm 2 are rod pieces with the same structure; the two wire clamping measuring arms are respectively hinged with the seat body 4 through a bolt B11; the upper ends of the two wire-clamping measuring arms are hinged through a bolt A10. When the upper ends of the two wire clamping measuring arms are not hinged and fixed, the upper ends of the two wire clamping measuring arms can be respectively turned over to be in a horizontal or vertical state around the lower ends.
Preferably, the hinge point of the first wire clamping measuring arm 1 and the seat body 4 and the hinge point of the second wire clamping measuring arm 2 and the seat body 4 are respectively positioned at two ends of the diameter of the top port of the through hole; the first wire clamping measuring arm 1 and the second wire clamping measuring arm 2 are perpendicular to each other; as shown in fig. 2, length scales 13 (for measuring the radius of the measured conductor 5, and the zero point position of the scale can be set at the hinge point at the upper end of the card line measuring arm) are provided in the length direction of the first card line measuring arm 1 and/or the second card line measuring arm 2.
Preferably, the first chuck wire measuring arm 1 and/or the second chuck wire measuring arm 2 are/is provided with a cross-sectional area scale mark 14 in the length direction, and the zero point position of the cross-sectional area scale mark is located at the upper end hinge point of the chuck wire measuring arm.
Preferably, a level 3 is mounted on the first and/or second wire- clamping measuring arm 1, 2 for assisting in leveling or leveling.
Preferably, the outer wall of the seat body 4 is provided with a height scale mark along the axis direction.
Preferably, a transparent protractor is installed at the hinge joint of the upper ends of the first wire clamping measuring arm 1 and the second wire clamping measuring arm 2.
Example one
Wire fixing device is fixed when can be used to insulated wire measuring voltage, and insulated wire voltage measurement's concrete method includes following step:
step one, providing the lead fixing device and the voltage measuring micro-needle device, wherein the voltage-resistant grade of the voltage measuring micro-needle device is matched with the insulated lead of the measured point.
The voltage between two points in the circuit can be measured by a micro-needle device, a measured lead 5 at a measured point is provided with the micro-needle device, and each micro-needle device is provided with one lead fixing device. As shown in fig. 3, a conventional voltage measuring microneedle device (hereinafter referred to as the microneedle device) generally includes a protective cylinder 9, a spiral push rod 8, a microneedle 6, a measuring body, and a display circuit; the spiral push rod 8 is arranged in the protective barrel chamber 9 and can axially move along the inner wall of the protective barrel chamber 9; the micro-needle 6 is electrically connected with the measuring main body, the measuring main body is arranged inside the spiral push rod 8, the measuring main body is led out of the tail part of the protective barrel chamber 9 through a test lead to form a display loop, and a neon tube 16 is connected to the display loop; the microneedle 6 is vertically installed in the center of the top of the spiral push rod 8, and the microneedle 6 can rotate upwards by a section of displacement after rotating the spiral push rod 8 and extend out of the jacking platform 7 of the protection barrel chamber 9, puncture the insulating layer 5.1 of the tested lead 5 and contact the metal wire core 5.2 in the tested lead 5. The two measured points are electrically connected with an instrument (voltmeter) through a measuring main body and a plug 15 to form a loop to measure voltage; the top of the protective barrel chamber 9 is provided with a tightly-pushing platform 7 for tightly pushing the measured lead 5, and the front end of the tightly-pushing platform 7 is provided with a pinhole for the micro-needle 6 to pass through.
Step two, testing whether the microneedle device circuit is normal: cleaning the surface of the tested lead 5 and wiping off the surface; and (3) wearing insulating gloves with corresponding voltage grades to test the voltage measuring microneedle device on the electrified bare conductor to ensure that a display circuit is normal.
Fixing a measured lead 5 of one measured point on the lead fixing device, and connecting the microneedle device with the lead fixing device: integrally pushing the lead fixing device at one end of the tested lead 5 to the position above the microneedle device at the end, opening a bolt B11 at the lower end of the two wire clamping measuring arms, clamping the tested lead 5 into the right angle position at the upper ends of the two wire clamping measuring arms, and installing a bolt B11; the protection barrel chamber 9 is arranged in the seat body 4 and fixed, and the position of the protection barrel chamber 9 is adjusted to enable the jacking table 7 to jack the lower part of the insulated wire.
And step four, repeating the step three, and mounting the measured lead 5 at the other measured point by using the microneedle device and the lead fixing device.
Step five, the micro-needle 6 of the micro-needle device is contacted with the conductive wire inside the tested lead 5 by piercing the insulating layer 5.1 of the tested lead 5, so that the neon tube 16 on the display circuit stably emits light: the two micro-needles 6 are respectively and spirally pushed upwards by the spiral push rod 8 (the micro-needles 6 can extend out of the tightening platform 7 of the protection barrel chamber 9 after the spiral push rod 8 rotates upwards for a period of displacement, puncture the insulating layer 5.1 of the tested lead 5 and contact with the conductive wire inside the tested lead 5) until the neon tube 16 on the corresponding display circuit stably emits light (the distance needing to be pushed can be preliminarily judged by the scale of the base body 4 in the rotating process of the spiral push rod 8), the radius of the tested lead 5 is obtained by the scale on the two clamp line measuring arms, and other related parameters are calculated.
Step six, connecting a voltmeter, reading and recording: and selecting a voltmeter or other measuring devices with proper measuring range, directly connecting the microneedle device with the voltmeter or other measuring devices, and reading and recording after the number is stabilized.
After the measurement is finished, firstly, the measurement lead and the instrument at the tail end of the protection barrel chamber 9 are detached, then the pushing rod is reversely rotated backwards to enable the micro-needle 6 to retract to the initial position, then the outlet (the pinhole of the jacking platform 7) of the micro-needle 6 is covered with the rubber plug, and finally the lead fixing device is taken down. Wire fixing device can avoid being surveyed wire 5 and shift at 6 puncture in-process micropins, guarantees that micropin 6 passes the insulating layer 5.1 of being surveyed wire 5 from the centre of being surveyed wire 5, and with inside metallic conductor good contact, measuring result is accurate reliable.
The utility model discloses in, with first calorie of line measuring arm 1 and the design of second calorie of line measuring arm 2 for perpendicular articulated, surveyed 5 card of wire and go into behind the articulated department of the two, it is tangent with two calorie of line measuring arms to be surveyed wire 5, the scale on the two calorie of line measuring arms of radius and sectional area isoparametric accessible of being surveyed wire 5 this moment directly reachs or derives the calculation, subtract the distance that the bright one-moment of display circuit was pushed (the thickness of being surveyed 5.1 on the wire insulating layer of wire) through being surveyed 5 the biggest external diameters of wire and be corresponding metal internal diameter and corresponding sectional area promptly, concrete method is: rotating the pushing device of the micro-needle 6, wherein the diameter of the measured lead 5 is read as A for the first time, then rotating the pushing device of the micro-needle 6, reading as B again when the neon tube 16 of the display circuit emits light, and using A-B as the pushing distance and the thickness of the insulating layer 5.1, wherein A-2 (A-B) is the diameter of the metal wire core 5.2; meanwhile, the corresponding wire clamping measuring arm is also provided with the radius, the sectional area and the diameter of the corresponding insulated wire metal wire core 5.2, and then the radius, the sectional area and the diameter are compared with the national standard of a standard wire, so that whether the section of the measured wire 5 is qualified or not can be judged, the 'water cargo' wire is removed, and the safe and economic operation of electric power is ensured.
Example two
Wire fixing device still can be used as the level tester, whether the inspection is surveyed wire 5 and is set up horizontally, or whether certain department is to ground level or to reference the thing perpendicularly. (1) As the horizontal tester, the principle of whether the tested lead 5 is horizontally erected is checked: the wire clamping measuring arm with the built-in level gauge (the level gauge can be a bubble gauge) is taken down and placed in a position parallel to the measured lead 5, and if the bubble is centered, the measured lead is horizontal. (2) Detecting whether a certain place is in ground level principle: after the wire clamping cylinder arm is matched with the plane, whether the air bubble at the middle part of the wire clamping measuring cylinder arm is positioned at the center or not is observed, and whether the position is horizontal to the ground or not is judged through a parallel law. (3) Vertical principle to reference: the base of the wire clamping cylinder arm is parallel or coincident with a certain position to be measured, when the base body 4 of the wire clamping cylinder arm is viewed by aiming, when no light passes through the wire clamping cylinder arm, the coincidence is realized, whether the position is parallel can be judged by utilizing the parallel principle, then whether the position is vertical is realized by observing the relative position of the air bubble in the center of the wire clamping cylinder arm, and when the air bubble is positioned in the center, the position is vertical to a reference object.
EXAMPLE III
Wire fixing device still can be used as the ruler, carries out the measurement of dimension (length, width, height), as shown in fig. 4, will block the bolt of line measurement arm upper end and take out this moment, will block the line measurement arm rotate to perpendicularly can. Example four
In the utility model, if a transparent plastic measuring device is arranged at the hinge of the two wire clamping measuring arms, as shown in fig. 5, the wire fixing device is used for measuring the angle; the compass can also be used as a compass and can measure the turning radius or the curvature radius of a lead or an arc.
EXAMPLE five
The lead fixing device of the utility model is also used for testing equal-height surfaces or leveling in electric power engineering, decoration engineering or pipeline engineering, can be used for on-site leveling of equal-height planes on the surface of a tested lead or a tested object, and can be used for determining whether the lead is positioned at the same height and the same plane; even positions with unequal heights or unevenness can be tested, so that the problem can be solved in a targeted manner. The two line clamping measuring arms are both in horizontal positions but not on the same straight line, the detected surface is compared with a standard surface formed by the two line clamping measuring arms, and whether the detected surface is an equal-height surface or not is easily judged according to a solid geometry principle, so that leveling is realized. When the two wire clamping measuring arms are vertical, the positions with unequal heights or different levels can be easily found out. Leveling principle: the line clamping measuring arm is disassembled into the form shown in fig. 8 (length scale lines are arranged on the two line clamping measuring arms), then the line clamping measuring arm on any side is placed on the plane, if the plane is seen to be light-transmitting, the place where light can be transmitted is lower than other places, the plane is not flat, and if the plane is not light-transmitting, the plane is flat, so that the place where the plane is too high or lower can be found.
EXAMPLE six
Wire fixing device still can design on two card line measuring arms by can follow the flexible measuring needle 12 of card line measuring arm length direction (hardness is very high), when the testee internal diameter is big and the opening is very little, the thickness of measuring arm is greater than the opening diameter, can measure narrow and small object inside diameter and degree of depth with measuring needle 12. As shown in fig. 6, when measuring the inner diameters of the black box and the narrow space, the two wire-clamping measuring arms are taken down to make the two arms at an included angle of 60 degrees, and then the retractable high-hardness needle between the two wire-clamping measuring arms is pushed out from the wire-clamping measuring arms, so that the inner diameters of the black box or the narrow space can be measured according to the properties of the equilateral triangle. Of course, it is also easy to measure the depth of a small space, and when two measurements are made vertically (as shown in FIG. 7), the measured depth is true, without slope error.
It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced with equivalents, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. A lead fixing device based on voltage measurement of an insulated lead is characterized by comprising a base body, a first lead clamping measuring arm and a second lead clamping measuring arm, wherein the base body is internally provided with a through hole which is vertically communicated and used for fixing a voltage measuring micro-needle device; the lower end of the first wire clamping measuring arm and the lower end of the second wire clamping measuring arm are hinged to the top of the seat body respectively, and the upper end of the first wire clamping measuring arm is hinged to the upper end of the second wire clamping measuring arm.
2. The wire fixing device as claimed in claim 1, wherein the base body is a cylindrical structure, and a notch for installing the first wire clamping measuring arm and the second wire clamping measuring arm is formed at the top of the base body; the first wire clamping measuring arm and the second wire clamping measuring arm are rod pieces with the same structure; the two wire clamping measuring arms are respectively hinged with the base body through a bolt A; the upper ends of the two wire clamping measuring arms are hinged through a bolt B; when the upper ends of the two wire clamping measuring arms are not hinged and fixed, the upper ends of the two wire clamping measuring arms can be respectively turned over to be in a horizontal or vertical state around the lower ends.
3. The wire fixing device as claimed in claim 1, wherein the hinge point of the first wire-clamping measuring arm and the seat body, and the hinge point of the second wire-clamping measuring arm and the seat body are respectively located at two ends of the diameter of the top port of the through hole; the first wire clamping measuring arm and the second wire clamping measuring arm are perpendicular to each other.
4. The lead fixation device of claim 1, wherein the first and/or second wire measuring arms are provided with length scale markings along the length thereof.
5. The wire fixing device according to claim 1, wherein a cross-sectional area scale is provided in a length direction of the first and/or second chuck wire measuring arms, and a zero point position of the cross-sectional area scale is located at an upper end hinge point of the chuck wire measuring arms.
6. The lead fixation device of claim 1, wherein a level is mounted on the first and/or second wire-clamping measuring arms; the outer wall of the seat body is provided with height scale marks along the axis direction.
7. The wire fixing device as claimed in claim 1, wherein a transparent protractor is installed at a hinge of upper ends of the first and second wire clamping measuring arms.
CN202120909171.1U 2021-04-29 2021-04-29 Wire fixing device based on insulated wire voltage measurement Active CN214895493U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120909171.1U CN214895493U (en) 2021-04-29 2021-04-29 Wire fixing device based on insulated wire voltage measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120909171.1U CN214895493U (en) 2021-04-29 2021-04-29 Wire fixing device based on insulated wire voltage measurement

Publications (1)

Publication Number Publication Date
CN214895493U true CN214895493U (en) 2021-11-26

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Application Number Title Priority Date Filing Date
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