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A grounding device for electrical testing instruments

A grounding device and power detection technology, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve the problems of instrument burning, inconvenient grounding structure, easy short-circuit burning and other problems, and achieve the effect of reliable and safe use.

Inactive Publication Date: 2017-12-12
PENGLAI POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the detection instrument is installed, if it is powered on, if there is a short circuit, it will cause the instrument to burn out
The existing equipment for installing detection instruments is usually relatively simple, and it is inconvenient to set up a grounding structure, which makes the instrument very easy to be short-circuited and burned

Method used

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  • A grounding device for electrical testing instruments
  • A grounding device for electrical testing instruments
  • A grounding device for electrical testing instruments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as Figure 1-4 As shown, a grounding device for a power testing instrument includes a metal connecting plate 123 connected to the circuit of the testing instrument 122, a positioning groove 124 is provided on one side of the metal connecting plate 123, and a positioning groove 124 is provided inside the positioning groove 124. A compression spring 125 is provided, and a metal connecting rod 128 is arranged at the upper end of the compression spring 125. Both ends of the metal connecting rod 128 are respectively bent downward to form a bending portion 126. The metal connecting plate 123 is located on the Below the detection instrument 122, a circuit breaker 127 is connected to the circuit of the detection instrument 122. The circuit breaker 127 is located above the metal connecting rod 128. When the circuit breaker 127 is triggered, it can push the The compression spring 125 is in a compressed state and drives the bending part 126 on one side of the metal connecting...

Embodiment 2

[0026]In this embodiment, in order to improve the stability of the overall structure, preferably, a backing plate 113 is set on the adjusting bolt 108, the backing plate 113 is located below the installation plate 104, and the backing plate The width of 113 is greater than the width of the through groove 107, and a second back spring is arranged above the backing plate 113, and the lower end of the second back spring is fixedly connected to the backing plate 113. The upper end of the second return spring is attached to the lower end surface of the installation plate 104 .

[0027] In this embodiment, the backing plate and the second return spring structure can be used to limit the part of the adjusting bolt located below the mounting plate, so as to improve the impact resistance of the overall structure.

Embodiment 3

[0029] In this embodiment, in order to prevent the instrument from falling off, preferably, clamping plates 114 are respectively provided inside the two fastening bolts 110, and anti-slip lines are respectively provided on the opposite end surfaces of the clamping plates 114, so The detection instrument 122 is located between the clamping plates 114 .

[0030] Further preferably, in this embodiment, the clamping plates 114 are L-shaped, and a cavity for clamping an instrument is formed between the two clamping plates 114 . In this embodiment, the instrument is placed in the cavity inside the clamping plate, the lower end surface of the instrument is attached to the upper end surface of the clamping plate, and the friction between the instrument and the clamping plate is increased by using anti-slip lines. It can fix the meter while preventing the surface of the meter from being worn by the clamping plate.

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Abstract

The invention discloses a grounding apparatus for electric power detecting instruments. The grounding apparatus comprises detecting instruments, and a metal connecting plate which is connected with a circuit of each detecting instrument, wherein a positioning groove is formed in one side of the corresponding metal connecting plate; a compression spring is arranged on the inner side of the positioning groove; a metal connecting rod is arranged at the upper end of the compression spring; the two ends of the metal connecting rod are bent downwardly to form bending parts; the metal connecting plate is positioned below the corresponding detecting instrument; a circuit breaker is connected with the circuit of each detecting instrument; the circuit breaker is positioned above the corresponding metal connecting rod; and when the circuit breaker is triggered, the compression spring can be pushed to be in a compressed state to drive the bending part on one side of the metal connecting rod to be connected with the metal connecting rod. By adoption of the overall grounding apparatus, the detecting instruments can be mounted conveniently while the detecting instruments are safer in use.

Description

technical field [0001] The invention relates to a grounding device for an electric power detection instrument. Background technique [0002] After the detection instrument is installed, if there is a short circuit when it is powered on, it will cause the instrument to burn out. The existing equipment for installing detection instruments is usually relatively simple, and it is inconvenient to set up a grounding structure, which makes the instrument very easy to be short-circuited and burned. Contents of the invention [0003] The purpose of the present invention is to provide a grounding device for electric power testing instruments, which can improve the problems existing in the prior art. The overall structure can facilitate the installation of the instrument and make the use of the instrument safer. [0004] The present invention is realized through the following technical solutions: [0005] A grounding device for a power testing instrument, comprising a metal connect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R4/66G01R31/02
CPCG01R31/50H01R4/66
Inventor 王志凤黄涛宋峰张明耀荆永梅葛建庭许明基翟德东薛永兰王有卫崔玉忠于学军
Owner PENGLAI POWER SUPPLY CO OF STATE GRID SHANDONG ELECTRIC POWER CO