CN204793264U - Short circuit grounding - Google Patents

Abstract

The short-circuit grounding wire includes a wire clamp, a grounding wire, and a grounding rod. The connecting end of the grounding wire is provided with a conductive sheet, and a through hole is opened on the conductive sheet, and a threaded hole is opened on one side of the wire clamp. The ground wire and the wire clamp are fastened through the butterfly bolt passing through the through hole and connected with the threaded hole. The lower end of the wire clamp has a cylindrical connection part, and the cylindrical The opposite sides of the connection part are respectively provided with a protrusion, the upper end of the ground rod has a cylindrical connection part, the inner cavity of the cylindrical connection part is provided with an elastic member, and the opposite sides of the cylindrical connection part Also have a concave groove respectively. The components of the short-circuit grounding wire of the utility model can be assembled and used repeatedly, and the disassembly and assembly of the short-circuit grounding wire can be completed conveniently and quickly without the use of other tools, thereby facilitating the replacement of the wire chuck and the grounding wire to meet different requirements. The use requirements, and effectively shorten the operation time.

Description

short circuit ground wire

technical field

The utility model relates to the field of substation safety tools, in particular to a short-circuit grounding wire.

Background technique

The short-circuit grounding wire is a safety short-circuit device to be connected in the power industry before maintenance after the equipment or line is powered off.

Existing short-circuit ground wires generally include a wire clamp, a ground wire and a ground rod, wherein the lower end of the wire clamp is fixed to the upper end of the ground rod by a rivet, and the connection end of the ground wire is welded to one side of the wire clamp. This kind of short-circuit ground wire has stable connection and high strength, and is the most common structural form.

However, we know that there are different devices in each substation, so when in use, different types of wire clamps and different types of grounding wires are often required to match different devices, and each of the existing short-circuited grounding wires The connection mode between components is not conducive to repeated disassembly and assembly, which makes it very inconvenient to replace the wire clamp and grounding wire, and takes a long time, which will cause the extension of switching operation time and equipment power outage time, and may also cause accidents. Therefore, some substations are equipped with multiple grounding rods, and each grounding rod is equipped with different types of wire clamps and different types of grounding wires to solve the above problems. It can be seen that this solution is costly and expensive. The utilization rate is low, and it is inconvenient to carry and store, which is not conducive to management.

Utility model content

The technical problem to be solved by the utility model is to provide a short-circuit grounding wire with stable connection of components and convenient disassembly and assembly.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the short-circuit grounding wire includes a wire clamp, a grounding wire and a grounding rod, and the connecting end of the grounding wire is provided with a conductive sheet, and there are more than one openings on the conductive sheet. Through holes, one side of the wire clamp is provided with threaded holes corresponding to the number and position of the through holes, and the ground wire and the wire clamp pass through the through holes and connect with the threaded holes. The butterfly bolt connected with the hole is fastened, the lower end of the wire clamp has a cylindrical connection part, and the opposite two sides of the cylindrical connection part are respectively provided with a protrusion, and the upper end of the ground rod has a The cylindrical connecting portion of the cylindrical connecting portion, the inner cavity of the cylindrical connecting portion is provided with an elastic member, the opposite sides of the cylindrical connecting portion are respectively opened with a concave groove, and the concave groove One end of the cylindrical connecting part extends to the upper end surface of the cylindrical connecting part to form an opening, and the other end is closed. When installing, the cylindrical connecting part is screwed into the inner cavity of the cylindrical connecting part, and the protrusion overcomes the The elastic force of the elastic member moves from the opening end of the concave-shaped groove to the closed end of the concave-shaped groove.

Further, the elastic member is a spring, and the lower end of the spring is fixed on the bottom wall of the cylindrical connecting part.

Compared with the prior art, the beneficial effect of the short-circuit grounding wire of the present invention is that all components in the short-circuit grounding wire of the present invention are detachably connected, and can be assembled and used repeatedly. Through the butterfly bolt connection, the connection between the wire clamp and the grounding rod is realized through the cooperation of protrusions, concave grooves and elastic parts. These two connection methods can be done by hand without using other tools. It is convenient and quick to complete the disassembly and assembly of the short-circuit grounding wire, which is conducive to the replacement of the wire clamp and grounding wire to meet different use requirements, and effectively shortens the operation time, and the built-in elastic piece in the cylindrical connection part makes the wire clamp and the grounding wire The connection of the rod is stronger, and there is no shaking during use.

Description of drawings

FIG. 1 is a schematic structural view of a short-circuit ground wire according to an embodiment of the present invention.

Fig. 2 is an enlarged view of A in Fig. 1 .

The marks of each component in the accompanying drawings are: 1 wire clamp, 11 threaded hole, 12 cylindrical connection part, 121 protrusion, 2 ground wire, 21 conductive sheet, 211 through hole, 3 ground rod, 31 cylindrical connection part, 311 concave grooves, 32 elastic parts, 41 first suitcases, 42 second suitcases, 5 butterfly bolts.

Detailed ways

Below in conjunction with accompanying drawing, the utility model will be further described:

See Figures 1 and 2. The short-circuit grounding wire of an embodiment of the present invention includes a wire chuck 1, a grounding wire 2 and a grounding rod 3. The connecting end of the grounding wire 2 is provided with a conductive sheet 21, and the conductive sheet 21 is provided with more than one A through hole 211, one side of the wire clamp 1 is provided with threaded holes 11 corresponding to the number and position of the through hole 211, and the connection between the ground wire 2 and the wire clamp 1 passes through the through hole Hole 211 and the butterfly bolt 5 that is connected with the threaded hole 11 are tightened. The lower end of the wire clamp 1 has a cylindrical connection part 12, and the opposite sides of the cylindrical connection part 12 are respectively provided with a protrusion. 121, the upper end of the ground rod 3 has a cylindrical connecting portion 31 that can accommodate the cylindrical connecting portion 12, the inner cavity of the cylindrical connecting portion 31 is provided with an elastic member 32, and the cylindrical connecting portion The opposite sides of 31 also have a concave-shaped groove 311, one end of the concave-shaped groove 311 extends to the upper end surface of the cylindrical connecting part 31 to form an opening, and the other end is closed. When installing, the column The shaped connecting portion 12 is screwed into the inner cavity of the cylindrical connecting portion 31, and the protrusion 121 overcomes the elastic force of the elastic member 32 and moves from the opening end of the concave-shaped groove 311 to the concave-shaped groove. 311 closed end.

The elastic member 32 is a spring, and the lower end of the spring is fixed on the bottom wall of the cylindrical connecting portion 31 . Springs are the most common elastic parts with good performance and high cost performance.

When maintenance personnel carry out maintenance, the utility model is carried to the scene, and then according to the voltage level and shape of the field equipment and the height of the equipment, the appropriate wire chuck 1, grounding wire 2 and grounding rod 3 are selected for on-site assembly. The ground wire 2 and the wire clamp 1 are tightened by the butterfly bolt 5 passing through the through hole 211 and connected with the threaded hole 11. When connecting the wire clamp 1 and the ground rod 3, the The cylindrical connecting portion 12 is screwed into the inner cavity of the cylindrical connecting portion 31, so that the protrusion 121 overcomes the elastic force of the elastic member 32 and moves from the opening end of the concave-shaped groove 311 to the inner cavity of the cylindrical connecting portion 31. The closed end of the concave-shaped groove 311 can be connected firmly; after the maintenance is completed, loosen the butterfly bolt 5, remove the grounding wire 2, and then remove the cylindrical connection part 12 of the wire chuck 1 from the grounding rod. 3 in the cylindrical connecting portion 31, that is to complete the disassembly of the short-circuit grounding wire, and finally put each component into a corresponding suitcase and bring it back.

All components in the short-circuit grounding wire of the utility model are detachably connected, and can be assembled and used repeatedly. The connection is realized through the cooperation of the protrusion 121, the concave groove 311 and the elastic member 32. These two connection methods can easily and quickly complete the disassembly and assembly of the short-circuit grounding wire without the need for other tools. , so that it is beneficial to replace the wire clamp 1 and the grounding wire 2 to meet different usage requirements, and effectively shorten the operation time.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of the new protection.

Claims (2)

1. A short-circuit grounding wire, comprising a wire chuck, a grounding wire and a grounding rod, characterized in that: the connection end of the grounding wire is provided with a conductive sheet, and more than one through hole is opened on the conductive sheet, and the wire chuck There are threaded holes corresponding to the number and position of the through holes on one side, and the grounding wire and the wire clamp are tightened by butterfly bolts that pass through the through holes and connect with the threaded holes. , the lower end of the wire clamp has a cylindrical connection part, and a protrusion is respectively provided on the opposite side of the cylindrical connection part, and the upper end of the ground rod has a cylindrical shape that can accommodate the cylindrical connection part. Connecting part, the inner cavity of the cylindrical connecting part is provided with an elastic member, and the opposite sides of the cylindrical connecting part are respectively provided with a concave-shaped groove, and one end of the concave-shaped groove extends to the cylindrical The upper end surface of the connecting part is formed with an opening and the other end is closed. When installing, the cylindrical connecting part is screwed into the inner cavity of the cylindrical connecting part, and the protrusion overcomes the elastic force of the elastic part from the The opening end of the concave-shaped groove moves to the closed end of the concave-shaped groove. 2. The short-circuit ground wire according to claim 1, wherein the elastic member is a spring, and the lower end of the spring is fixed on the bottom wall of the cylindrical connecting portion.