CN215869831U

CN215869831U - Graphite-based flexible grounding device suitable for railway electric tower

Info

Publication number: CN215869831U
Application number: CN202121496324.0U
Authority: CN
Inventors: 曹伟华; 曹国欣; 耿威; 吕阿金
Original assignee: Yangzhou Yingxin Electric Engineering Co ltd; China Railway Shanghai Design Institute Group Co Ltd
Current assignee: Yangzhou Yingxin Electric Engineering Co ltd; China Railway Shanghai Design Institute Group Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-02-18
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a graphite-based flexible grounding device suitable for a railway electric power tower, which comprises a wiring end, a conductor and a grounding wire, wherein the wiring end is connected with the grounding wire, a connecting piece is connected between the grounding wire and the grounding wire, the connecting piece is fixedly connected with the conductor, the grounding wire is a graphite-based flexible wire, the grounding wire is composed of a protective sleeve, a copper wire and a graphite wire, the copper wire and the graphite wire are combined into a rope structure, and the protective sleeve is arranged on the outer layer of the combined wire. According to the utility model, the graphite-based flexible grounding device is of a rope structure and has a creeping effect with soil, so that the material is in closer and closer contact with the soil, the contact resistance of the graphite-based flexible grounding device is naturally reduced after long-term use, the grounding resistance is continuously improved, the drainage effect is better, and meanwhile, the graphite wire has no recycling value, so that the anti-theft problem is solved.

Description

Graphite-based flexible grounding device suitable for railway electric tower

Technical Field

The utility model relates to the technical field of grounding devices, in particular to a graphite-based flexible grounding device suitable for railway electric power towers.

Background

The grounding device is a general term for a grounding body and a grounding wire, and has the function of guiding thunder or overload current into the ground, wherein the grounding body is a conductor or a conductor group which is directly contacted with soil and is divided into an artificial grounding body and a natural grounding body. The grounding body is used as a conductor which is in close contact with the soil of the ground and provides electrical connection with the ground, and the energy of the safe free-flow mine or the overload energy is leaked into the ground.

The existing electric power tower grounding of the railway in China generally adopts flat steel or round steel or copper stranded wire materials as grounding down leads, and 150 copper stranded wires are adopted at the present stage. The underground grounding body mostly adopts flat steel (angle steel is used as a vertical grounding body) as a horizontal grounding body. The grounding resistance of the electric pole tower is required to be less than 4 ohms by the iron standard. The connection between the grounding bodies is mostly completed by adopting metal wire clamps. In practical application, a metal grounding body embedded into the underground part is easy to corrode, so that the grounding resistance value is increased, good leakage cannot be realized, poor grounding is caused, and potential safety hazards of equipment or human bodies are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a graphite-based flexible grounding device suitable for railway electric power towers, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flexible earthing device of graphite base suitable for railway electric power tower uses, includes wiring end, conductor and earth connection, the earth connection is provided with a plurality of, the wiring end is with neighbouring the earth connection is connected, the earth connection with be connected with the connecting piece between the earth connection, the connecting piece with conductor fixed connection, the earth connection sets up to graphite base flexible line, the earth connection comprises lag, copper line and graphite line, the copper line with the graphite line combination is the rope structure, the protective sheath sets up at the combination line skin.

In one embodiment of the utility model, the copper wire comprises a copper wire and graphite paper, the copper wire is wound with each other, and the graphite paper is wrapped outside the copper wire.

In one embodiment of the utility model, the terminal is a metal piece which is corrosion-resistant by a hot galvanizing process.

In one embodiment of the utility model, the connecting piece is a frame body formed by combining nylon and metal.

In one embodiment of the utility model, a wire fixing clip is commonly arranged between the grounding wire and the adjacent grounding wire.

In an embodiment of the utility model, the wire fixing clamp is a long-mouth clamp, two wire passing holes are formed in the side wall of the wire fixing clamp, two grounding wires pass through the two wire passing holes, and the inner walls of the wire passing holes are in clearance fit with the grounding wires.

In summary, due to the adoption of the technology, the utility model has the beneficial effects that:

in the utility model, the graphite-based flexible grounding device is of a rope structure and has a creeping effect with soil, so that the material is in closer and closer contact with the soil, the contact resistance of the graphite-based flexible grounding device is naturally reduced after long-term use, the grounding resistance is continuously improved, the drainage effect is better, the graphite wire has no recovery value, the anti-theft loss problem is solved, the service life of the graphite base part can reach 30 years at the shortest time, and the graphite base part does not need to be laid again in the service life of the power tower, so that the problem of repeated investment is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a grounding line structure according to the present invention;

FIG. 3 is a schematic cross-sectional view of a grounding wire according to the present invention;

FIG. 4 is a schematic view of a wire fixing clip according to the present invention;

FIG. 5 is a schematic cross-sectional view of a copper wire according to the present invention.

In the figure: 1. a terminal; 2. a fixed seat; 3. a ground line; 4. a connecting member; 5. a protective sleeve; 6. a copper wire; 7. a copper wire; 8. graphite wires; 9. graphite paper; 10. a wire fixing clamp; 11. A wire passing hole; 12. a conductor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art from the specification.

Example 1

Referring to fig. 1-5, the present invention provides a graphite-based flexible grounding device suitable for a railway power tower, including a terminal 1, a conductor 12 and a grounding wire 3, wherein the terminal 1 is made of a metal member subjected to corrosion protection by a hot galvanizing process. Wiring end 1 is connected with earth connection 3, installs fixing base 2 on the earth connection 3, and fixing base 2 is fixed a position and is fixed to earth connection 3.

The earth connection 3 is provided with a plurality of, is connected with connecting piece 4 between earth connection 3 and the neighbouring earth connection 3, and connecting piece 4 sets up the support body that nylon and metal make up into, and the nylon connecting piece can be effectively anticorrosive, increases the life of connecting piece. Connecting piece 4 and conductor 12 fixed connection, earth connection 3 sets up to graphite base flexible line, and earth connection 3 comprises lag 5, copper line 7 and graphite line 8, and copper line 7 includes copper wire 6 and graphite paper 9, and copper wire 6 twines each other, and graphite paper 9 wraps up outside copper wire 6. Copper line 7 and graphite line 8 combination are the rope structure, and lag 5 sets up at the combination line skin, and lag 5 sets up to cable protection cover 5.

The graphite wire has good conductivity, corrosion resistance, flexibility, mechanical property, thermal stability and soil cohesiveness, and the electrical property, physical and chemical properties and mechanical property of the graphite-based flexible grounding wire can meet the use requirements of railway electric power towers. In addition, the device has good corrosion resistance and thermal stability, can effectively prevent chemical corrosion or electrochemical corrosion in soil with strong acidity and alkalinity, and prolongs the service life.

The wire fixing clip 10 is commonly provided between the ground wire 3 and the adjacent ground wire 3. The wire fixing clamp 10 is a long-mouth clamp, two wire passing holes 11 are formed in the side wall of the wire fixing clamp 10, the two grounding wires 3 penetrate through the two wire passing holes 11, and the inner walls of the wire passing holes 11 are in clearance fit with the grounding wires 3. The underground line can be regulated by using the line fixing clamp 10, so that the line can be conveniently combed.

The working principle is as follows: when in use, the wiring terminal 1 is connected with the grounding wire 3, the connecting piece 4 is connected between the grounding wire 3 and the conductor 12, the connecting piece 4 is fixedly connected with the conductor 12, the grounding wire 3 is set to be a graphite-based flexible wire, the grounding wire 3 consists of a protective sleeve 5, a copper wire 7 and a graphite wire 8, the copper wire 7 and the graphite wire 8 are combined to be a rope structure, the protective sleeve 5 is arranged on the outer layer of the combined wire to protect the grounding wire 3, because the graphite-based flexible grounding device is in the rope structure and has a creeping effect with soil, the material is more and more tightly contacted with the soil, the contact resistance can be naturally reduced after long-term use, the grounding resistance can be continuously improved, the leakage effect is better, meanwhile, the graphite wire has no recycling value, the anti-theft problem is solved, the service life cycle of the graphite-based part can reach 30 years at the shortest, and therefore, the electric power tower does not need to be laid again in the service cycle, no repeated investment problem exists.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a flexible earthing device of graphite base suitable for railway electric tower uses, includes wiring end (1), conductor (12) and earth connection (3), its characterized in that: wiring end (1) with earth connection (3) are connected, earth connection (3) are provided with a plurality of, earth connection (3) and neighbouring be connected with connecting piece (4) between earth connection (3), connecting piece (4) with conductor (12) fixed connection, earth connection (3) set up to graphite base flexible line, earth connection (3) comprise lag (5), copper line (7) and graphite line (8), copper line (7) with graphite line (8) combination is the rope structure, lag (5) set up at the combination line skin.

2. The graphite-based flexible grounding device suitable for the railway electric tower as claimed in claim 1, wherein: the copper wire (7) comprises a copper wire (6) and graphite paper (9), the copper wire (6) is wound with each other, and the graphite paper (9) is wrapped outside the copper wire (6).

3. The graphite-based flexible grounding device suitable for the railway electric tower as claimed in claim 1, wherein: the wiring terminal (1) is made of a corrosion-resistant metal piece by a hot galvanizing process.

4. The graphite-based flexible grounding device suitable for the railway electric tower as claimed in claim 1, wherein: the connecting piece (4) is a frame body formed by combining nylon and metal.

5. The graphite-based flexible grounding device suitable for the railway electric tower as claimed in claim 1, wherein: and a wire fixing clamp (10) is arranged between the grounding wire (3) and the adjacent grounding wire (3) together.

6. The graphite-based flexible grounding device suitable for the railway electric tower as claimed in claim 5, wherein: the wire fixing clamp (10) is arranged to be a long-mouth clamp, two wire passing holes (11) are formed in the side wall of the wire fixing clamp (10), the grounding wire (3) penetrates through the two wire passing holes (11), and the inner wall of each wire passing hole (11) is in clearance fit with the corresponding grounding wire (3).