CN212626898U

CN212626898U - Electric shock-proof insulated wire clamp for live replacement of three-phase electric energy meter

Info

Publication number: CN212626898U
Application number: CN202021456308.4U
Authority: CN
Inventors: 任秋业; 高皋; 何承朱; 刘静; 姜燕; 于杰; 衡珊; 汤群; 李静; 王宾
Original assignee: State Grid Jiangsu Electric Power Co ltd Zhenjiang Power Supply Branch
Current assignee: State Grid Jiangsu Electric Power Co ltd Zhenjiang Power Supply Branch
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-02-26
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses an electric shock prevention insulated conductor clamp for live replacement of a three-phase electric energy meter, which comprises a first clamping part, a second clamping part, a rotating shaft and a torsion spring, wherein the first clamping part comprises a first clamping head and a first pressing head, the second clamping part comprises a second clamping head and a second pressing head, the torsion spring is sleeved on the rotating shaft, the first clamping part and the second clamping part are movably connected by the rotating shaft, the extension parts at the two ends of the torsion spring are propped against the inner side surfaces of the first pressing head and the second pressing head to lead the first clamping head, the end part of the second clamping head is clamped, the first clamping part and the second clamping part form a clamp capable of opening and closing, the left side surfaces of the first clamping head and the second clamping head form a closed surface in a clamping state, semicircular holes are respectively arranged at corresponding positions of the edges of the left side surfaces of the two clamping heads, and the right side surfaces of the first clamping head and the second clamping head are closed surfaces in a clamping state. The utility model discloses can effectively solve and very easily take place the problem that the people body electrocuted or the short circuit when changing the electric energy meter with electricity.

Description

Electric shock-proof insulated wire clamp for live replacement of three-phase electric energy meter

Technical Field

The utility model relates to an electric shock prevention insulated wire clamp for changing three-phase electric energy meter with electricity belongs to insulating technical field.

Background

Because the intelligent electric meter plays an important role, the intelligent electric meter needs to be operated and maintained frequently, the electric meter rotation is an important content of the electric meter operation and maintenance, and the national power grid needs to undertake the single-phase intelligent electric meter rotation task every year. The electric energy meter is replaced to be used as the work which is frequently carried out by measurement professional staff of a power supply company, and the proportion of the work in the measurement work is more than 80%. When the electric energy meter is replaced, due to the influences of a power supply mode or the electricity utilization property of a customer and the like, the electric energy meter can not be replaced after power failure measures are taken, the electric energy meter needs to be replaced in a charged mode, and low-voltage charged meter replacement is operation with large risk. In the replacement operation, after a worker removes a faulty electric energy meter, the wiring end of the original electric energy meter is exposed, and for the sake of safety, two methods are generally adopted, namely, an electrical insulating tape is adopted to wrap the exposed end of the wire, but the wrapping and removing of the tape are troublesome, and in the actual live meter replacement work, the worker often does not wrap the wire, so that the potential safety hazard is great; and secondly, the exposed wire end is sleeved by the insulating sleeve from the upper part of the wire joint, and the exposed wire end is easily dropped out when a worker operates the insulating sleeve, so that the exposed wire end is exposed. Therefore, in the process of replacing the electric energy meter in a charged manner, a worker is easy to get an electric shock or short circuit electric arc burn due to the fact that a wiring terminal is exposed, the worker is likely to get an electric shock and die seriously, and great personal risks are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric shock protection insulated conductor presss from both sides for changing three-phase electric energy meter with electricity, to naked electrified end of a thread, insulated conductor presss from both sides the dress convenient, and easy operation is difficult for dropping, simultaneously, according to setting up insulated conductor clamp mark mutually, when trading the table, insulated conductor presss from both sides and passes in and out the root of a thread and correspond with the electric energy meter, and is clear, and the security is high, can take precautions against the electric shock risk of changing the electric energy meter operation with electricity effectively, effectively avoids trading the table and causes the problem of misconnection line.

The purpose of the utility model is realized through the following technical scheme:

an electric shock preventing insulated conductor clamp for live replacement of a three-phase electric energy meter comprises a first clamping part 1, a second clamping part 2, a rotating shaft 3 and a torsion spring 4, wherein the first clamping part 1 comprises a first clamping head 11 and a first pressing head 12, the second clamping part 2 comprises a second clamping head 21 and a second pressing head 22, the torsion spring 4 is sleeved on the rotating shaft 3, the first clamping part 1 and the second clamping part 2 are movably connected through the rotating shaft 3, extension parts at two ends of the torsion spring 4 abut against the inner side surfaces of the first pressing head 12 and the second pressing head 22 to clamp the end parts of the first clamping head 11 and the second clamping head 21, the first clamping part 1 and the second clamping part 2 form a clamp which can be opened and closed, the left side surfaces of the first clamping head 11 and the second clamping head 21 form a closed surface in a clamping state, semicircular holes are respectively arranged at corresponding positions of the edges of the left side surfaces of the two clamping heads, the clamping hole 5 is formed in the clamped state, and the right side surfaces of the first and

second clamping heads

11 and 21 are closed surfaces in the clamped state. The edges of the right side surfaces of the first clamping head 11 and the second clamping head 21 are concave and convex which are matched with each other respectively. The frameworks of the first clamping part 1 and the second clamping part 2 are made of stainless steel, and the outer surfaces of the frameworks are wrapped by rubber insulating layers.

The purpose of the utility model can be further realized through the following technical measures:

the electric shock prevention insulated wire clamp for replacing the three-phase electric energy meter in an electrified way is distinguished by marks or colors on the surface and is respectively applied to the wires of the A phase, the B phase, the C phase and the N phase of the three-phase electric energy meter.

Compared with the prior art, the beneficial effects of the utility model are that: the insulating wire clamp is used for clamping the exposed live wire end from the side, the operation is convenient, and the problem that the electric energy meter is easily subjected to electric shock or short circuit when being changed in a live way can be effectively solved; the insulating fastener is convenient for distinguish the wiring with mark or colour, and is clear, avoids causing the wiring mistake after the table is traded.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a bottom view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a schematic view of the torsion spring of the present invention.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1, 2 and 3, the anti-electric shock insulated wire clamp for live replacement of a three-phase electric energy meter comprises a first clamping portion 1, a second clamping portion 2, a rotating shaft 3 and a torsion spring 4, wherein the first clamping portion 1 comprises a first clamping head 11 and a first pressing head 12, the second clamping portion 2 comprises a second clamping head 21 and a second pressing head 22, as shown in fig. 4, the torsion spring 4 is sleeved on the rotating shaft 3, the first clamping portion 1 and the second clamping portion 2 are movably connected by the rotating shaft 3, extension portions at two ends of the torsion spring 4 abut against inner side surfaces of the first pressing head 12 and the second pressing head 22 to clamp end portions of the first clamping head 11 and the second clamping head 21, the first clamping portion 1 and the second clamping portion 2 form a clamp capable of opening and closing, left side surfaces of the first clamping head 11 and the second clamping head 21 form a closed surface in a clamping state, and semicircular holes are respectively arranged at corresponding positions on edges of the left side surfaces of the two clamping heads, the clamping holes 5 are formed in the clamping state, the clamping holes are applied to the scenes of conducting wires with different wire diameters, and the gauge diameters of the clamping holes are arranged differently, so that the usability of the insulating clamp is increased. The right side surfaces of the first and

second gripping heads

11 and 21 are closed surfaces in the clamped state. The edges of the right side surfaces of the first clamping head 11 and the second clamping head 21 are concave and convex which are matched with each other respectively. The first holding head 11 and the second holding head 21 are hollow curved structures. When the insulating clamp is clamped tightly, the left side faces of the two clamping heads are closed to clamp the wires, and the right side faces of the two clamping heads are closed in a convex-concave mode and used for covering the exposed conductors at the tops of the wires, so that the safety is improved. The frameworks of the first clamping part 1 and the second clamping part 2 are made of stainless steel, and the outer surfaces of the frameworks are wrapped by rubber insulating layers.

The electric shock prevention insulated wire clamp for replacing the three-phase electric energy meter in an electrified way is distinguished by marks or colors on the surface and is respectively applied to the wires of the A phase, the B phase, the C phase and the N phase of the three-phase electric energy meter. The phase-A insulating wire clamp, the phase-B insulating wire clamp, the phase-C insulating wire clamp and the phase-N insulating wire clamp of the three-phase electric energy meter are sequentially distinguished by four colors of yellow, green, red and blue, namely the phase-A insulating wire clamp is yellow, the phase-B insulating wire clamp is green, the phase-C insulating wire clamp is red and the phase-N insulating wire clamp is blue. When an operator removes the electric energy meter, after removing a wiring of the electric energy meter, the insulating wire clamp is immediately clamped on the bare live wire end, and A, B, C three-phase lines and zero lines are distinguished by four colors of yellow, green, red and blue; when a new electric energy meter is installed, the insulating wire clamp of one wiring is pulled out and is immediately connected into the wiring hole of the new electric energy meter. Like this, just can better solve the problem that takes place the people easily and electrocute or short circuit, guarantee safety, simultaneously, obviously marked three-phase line and zero line again, appear the problem of connecing wrong line when avoiding installing new electric energy meter.

In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. An electric shock-proof insulated wire clamp for live replacement of a three-phase electric energy meter is characterized by comprising a first clamping part, a second clamping part, a rotating shaft and a torsion spring, wherein the first clamping part comprises a first clamping head and a first pressing head, the second clamping part comprises a second clamping head and a second pressing head, the torsion spring is sleeved on the rotating shaft, the first clamping part and the second clamping part are movably connected through the rotating shaft, extending parts at two ends of the torsion spring abut against the inner side surfaces of the first pressing head and the second pressing head to clamp the end parts of the first clamping head and the second clamping head, the first clamping part and the second clamping part form a clamp capable of opening and closing, the left side surfaces of the first clamping head and the second clamping head form a closed surface in a clamping state, semicircular holes are respectively arranged at corresponding positions of the edges of the left side surfaces of the two clamping heads, and clamping holes are formed in the clamping state, the right flank of first clamping head, second clamping head is the closing surface at the tight state of clamp, the right flank edge of first clamping head, second clamping head is concave, the convex of mutually supporting respectively, and first clamping part, second clamping part skeleton are stainless steel, surface parcel rubber insulation layer.

2. The electric shock preventing insulated wire clamp for the live replacement of the three-phase electric energy meter as claimed in claim 1, wherein the marks or the color distinction on the surface are respectively applied to the wires of the A phase, the B phase, the C phase and the N phase of the three-phase electric energy meter.