CN209880863U

CN209880863U - Flexible graphite grounding body

Info

Publication number: CN209880863U
Application number: CN201920471981.6U
Authority: CN
Inventors: 赵长成; 林发凯; 赵长斌; 徐伟
Original assignee: Sichuan Jiankun Technology Co Ltd
Current assignee: Sichuan Jiankun Technology Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2019-12-31
Anticipated expiration: 2029-04-09

Abstract

The utility model discloses a flexible graphite grounding body, which comprises a cable and a grounding sheet (8), wherein the cable comprises a conductive rubber layer (1) positioned on the surface layer of the cable and a plurality of graphite cores (6) positioned in the center of the interior of the cable; a graphene woven layer (2) is wrapped in the conductive rubber layer (1), and a filling layer (3) is wrapped in the graphene woven layer (2); the filling layer (3) comprises filling plastics and a plurality of steel wires (4) positioned in the filling plastics; an insulating layer (5) is also arranged between the graphite cores (6) and the filling layer (3); a fastening body (7) is arranged on the grounding plate (8); the fastening body (7) is a bent cylindrical sheet metal part, a plurality of protruding pressure points (72) are arranged in the fastening body, a plurality of fastening bolts (73) are arranged at the joints of the fastening body and the fastening body, and the end head of the fastening piece is fixedly connected with a connecting body (71). The utility model discloses beneficial effect does: the conductivity is high, and the material has flexibility and corrosion resistance.

Description

Flexible graphite grounding body

Technical Field

The utility model relates to an earthing device field especially relates to a flexible graphite grounding body.

Background

The grounding body is a conductive material commonly used in industrial production and life, and aims to introduce currents such as fault current, lightning current, static electricity and the like into the ground to protect life and property safety, and is commonly used in lightning protection facilities; generally, a grounding body needs to be deep into soil, a down-lead made of a copper material and other metal materials is mostly directly adopted in the conventional grounding body, and due to the fact that application scene environments are complex and comprise acid soil, alkaline soil, marshland, wet and hot land, sea salt and mountain hills, the grounding body is extremely easy to corrode in the environments, and meanwhile, the materials are high in rigidity and easy to be damaged mechanically in the construction process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an adopt graphite material, the electric conductivity is high, has flexible and corrosion-resistant flexible graphite grounding body.

The purpose of the utility model is realized through the following technical scheme: a flexible graphite grounding body comprises a cable and a grounding sheet, wherein the cable comprises a conductive rubber layer positioned on the surface layer of the cable and a plurality of graphite cores positioned in the center of the interior of the cable; a graphene braided layer is wrapped in the conductive rubber layer, and a filling layer is wrapped in the graphene braided layer; the filling layer comprises filling plastics and a plurality of steel wires positioned in the filling plastics; an insulating layer is also arranged between the graphite cores and the filling layer; and a fastening body is arranged on the grounding sheet.

Further, the plurality of graphite cores are formed by winding a plurality of graphite thin wires, each graphite thin wire comprises glass fiber and expanded graphite attached to the surface of the glass fiber.

Furthermore, the steel wires are uniformly arranged in the filling layer around the axis inside the cable.

Furthermore, the fastening body is a bent cylindrical sheet metal part, a plurality of protruding pressure points are arranged in the fastening body, a plurality of fastening bolts are arranged at the joints of the fastening body, and the end head of the fastening body is fixedly connected with a connecting body.

Furthermore, the connector is of a flat horn mouth structure, and the open end of the horn mouth of the connector is fixedly connected with the grounding sheet.

Further, the fastening body is fixed by clamping to a ground end circumferential surface of the cable.

The utility model has the advantages of it is following:

the expanded graphite is used as a conductive material, so that the conductive efficiency is improved; the cable is composed of a graphite core, a steel wire and other structures, and is flexible and stretch-resistant; the partial surface and inside of the cable are mostly of nonmetal structures and are corrosion-resistant.

Drawings

Fig. 1 is a schematic structural view of a cable part of the present invention;

FIG. 2 is a schematic view of a part of the structure of the grounding plate of the present invention;

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

in the figure: the method comprises the following steps of 1-a conductive rubber layer, 2-a graphene woven layer, 3-a filling layer, 4-a steel wire, 5-an insulating layer, 6-a graphite core, 7-a fastening body, 8-a grounding sheet, 71-a connecting body, 72-a convex pressing point and 73-a fastening bolt.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-3, a flexible graphite grounding body comprises a cable and a grounding sheet 8, wherein the cable comprises a conductive rubber layer 1 positioned on the surface layer of the cable and a plurality of graphite cores 6 positioned in the center of the interior of the cable; the conductive rubber layer 1 is internally wrapped with a graphene woven layer 2, and the graphene woven layer 2 is internally wrapped with a filling layer 3; the filling layer 3 comprises filling plastics and a plurality of steel wires 4 positioned in the filling plastics; an insulating layer 5 is also arranged between the graphite cores 6 and the filling layer 3; the grounding plate 8 is provided with a fastening body 7; the fastening body 7 is a bent cylindrical sheet metal part, a plurality of convex pressure points 72 are arranged in the fastening body 7, a plurality of fastening bolts 73 are arranged at the joints of the fastening body and the fastening body, and the end head of the fastening body 7 is fixedly connected with a connecting body 71; the connector 71 is of a flat horn mouth structure, the open end of the horn mouth of the connector is fixedly connected with the grounding plate 8, and the grounding plate 8 is a galvanized steel sheet.

The graphite cores 6 and the graphene woven layers 2 are both composed of glass fibers and expanded graphite, namely the expanded graphite is high-purity graphite, and is expanded into graphite worms with the volume more than 200 times of the self volume by high temperature after being washed, pickled and the like, the glass fibers are used as frameworks, the expanded graphite is attached to the glass fibers, and the glass fibers are combined with conductive adhesive for high-pressure shaping to manufacture conductive cloth with the width of 500 mm; the graphene braided layer 2 is formed by overlapping and winding a plurality of layers of conductive cloth, the conductive cloth is twisted into fine graphite wires after being cut into strips, and a plurality of fine graphite wires are wound and wound to form a single graphite core 6; the steel wires 4 are uniformly arranged in the filling layer 3 around the inner axis of the cable, and the purpose of the steel wires 4 is to enhance the integral structural strength of the cable; the insulating layer 5 is used for cutting off the current in the graphite cores 6 and transmitting the current to the steel wire 4; the graphene braided layer 2 on the outer layer is wound on the extrusion filling layer 3, so that the internal structure of the cable is more compact and stable; the graphite cores 6 are main conductive structures in the cable, extend out of the tail end of the cable to go deep into the connecting body 71, and the flat tail end of the connecting body 71 is pressed and fixed with the extending graphite cores 6; the fastening body 7 is sleeved on the surface of the cable, the fastening bolt 73 is locked on the surface of the cable, and a plurality of protruding pressure points 72 inside the fastening body increase friction with the surface of the cable so as to prevent the cable from falling off.

The utility model discloses the theory of operation does: current is diffused from the cable to the underground, and through a plurality of graphite cores 6 and grounding piece 8 with high pressure, heavy current leading-in underground, the effect of reposition of redundant personnel is undertaken with electrically conductive rubber layer 1 to the graphite weaving layer 2 on cable top layer for electrically conductive efficiency is higher.

The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but it cannot be understood as the limitation of the scope of the invention, and it should be noted that, for those skilled in the art, without departing from the concept of the invention, several modifications and improvements can be made, and all of them belong to the protection scope of the invention.

Claims

1. The utility model provides a flexible graphite grounding body, it includes cable and grounding lug (8), its characterized in that: the cable comprises a conductive rubber layer (1) positioned on the surface layer of the cable and a plurality of graphite cores (6) positioned in the center of the interior of the cable; a graphene woven layer (2) is wrapped in the conductive rubber layer (1), and a filling layer (3) is wrapped in the graphene woven layer (2); the filling layer (3) comprises filling plastics and a plurality of steel wires (4) positioned in the filling plastics; an insulating layer (5) is also arranged between the graphite cores (6) and the filling layer (3); and a fastening body (7) is arranged on the grounding plate (8).

2. The flexible graphite grounding body of claim 1, wherein: the graphite cores (6) are formed by winding a plurality of graphite thin wires with each other, and the graphite thin wires comprise glass fibers and expanded graphite attached to the surfaces of the glass fibers.

3. The flexible graphite grounding body of claim 1, wherein: and the plurality of steel wires (4) surround the inner axis of the cable and are uniformly arranged in the filling layer (3).

4. The flexible graphite grounding body of claim 1, wherein: the fastening body (7) is a bent cylindrical sheet metal part, a plurality of protruding pressure points (72) are arranged in the fastening body, a plurality of fastening bolts (73) are arranged at the joint of the fastening body and the fastening body, and the end of the fastening body (7) is fixedly connected with a connecting body (71).

5. The flexible graphite grounding body of claim 4, wherein: the connector (71) is of a flat horn mouth structure, and the open end of the horn mouth of the connector is fixedly connected with the grounding sheet (8).

6. The flexible graphite grounding body of claim 1, wherein: the fastening body (7) is clamped and fixed on the circumferential surface of the grounding end of the cable.