CN212303950U - Grounding device for power transmission line - Google Patents
Grounding device for power transmission line Download PDFInfo
- Publication number
- CN212303950U CN212303950U CN202021454515.6U CN202021454515U CN212303950U CN 212303950 U CN212303950 U CN 212303950U CN 202021454515 U CN202021454515 U CN 202021454515U CN 212303950 U CN212303950 U CN 212303950U
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- grounding
- rod
- fixing bolt
- transmission line
- angle iron
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Abstract
The utility model provides a grounding device for a power transmission line, which comprises a grounding upper end and a grounding lower end, the grounding upper end is connected with the grounding lower end through a lead, the grounding upper end comprises angle iron, a lightning rod and a fixing bolt, the lightning rod is welded on the surface of the angle iron in a radial shape, the fixing bolt horizontally penetrates through the side surface of the angle iron, the tail end of the fixing bolt is sleeved with a wiring terminal, the bottom of the wiring terminal is fixedly connected with the top of the lead, the grounding lower end comprises a grounding rod and a resistance reducing layer sleeved outside the grounding rod, a conical part is arranged below the grounding rod, the diameter of the upper part of the conical part is larger than that of the ground rod, the surface of the upper part of the conical part is flush with the surface of the resistance reducing layer, a wiring board is fixed above the grounding rod and fixedly connected with the bottom of the wire, and supporting rods are fixed on the surfaces of the grounding rods on the two sides of the wiring board. The grounding device is suitable for grounding of a power transmission frame, has a lightning protection effect and is good in grounding effect.
Description
Technical Field
The utility model relates to a grounding device for power transmission line.
Background
The grounding device is also called a grounding integrated device: and a device for electrically connecting the electrical equipment or other objects with the ground. The existing grounding device consists of a grounding electrode (plate), a grounding bus (indoor and outdoor), a grounding down lead (grounding jumper) and a framework grounding. It is used for the purpose of connecting an electrical system to the ground. The metal object which is in direct contact with the ground to realize electrical connection is a grounding electrode. It can be an artificial grounding electrode or a natural grounding electrode. The grounding electrode can be given some kind of electrical function, such as system grounding, protection grounding or signal grounding. The grounding busbar is a reference potential point of the electrical device of the building, and the part needing grounding in the electrical device is connected with the grounding electrode through the grounding busbar. It also serves the function of interconnecting equipotential bonding lines within an electrical installation, thereby achieving total equipotential bonding between major conductive parts within a building. The connecting line between the grounding electrode and the grounding busbar is called a grounding electrode lead.
However, most grounding devices for power transmission racks do not have a lightning protection effect, and are general in grounding effect and inconvenient to install.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a grounding device for conductive transmission line, be fit for the ground connection that is used for the transmission frame to use to have lightning-arrest effect, the ground connection is effectual.
The utility model is realized in such a way, the grounding device for the power transmission line comprises a grounding upper end and a grounding lower end, wherein the grounding upper end is connected with the grounding lower end through a wire, the grounding upper end comprises angle iron, a lightning rod and a fixing bolt, the lightning rod is welded on the surface of the angle iron in a radial manner, the fixing bolt horizontally passes through the side surface of the angle iron, the tail end of the fixing bolt is sleeved with a wiring terminal, the bottom of the wiring terminal is fixedly connected with the top of the wire, the grounding lower end comprises a grounding rod and a resistance reducing layer sleeved outside the grounding rod, a conical part is arranged below the grounding rod, the diameter of the upper part of the conical part is larger than that of the grounding rod, the surface of the upper part of the conical part is flush with the surface of the resistance reducing layer, a wiring board is fixed above the grounding rod and is fixedly connected with, the top of the support rod is provided with a horizontal mounting plate.
Preferably, the connecting terminal comprises a copper plate and a copper pipe fixed at the bottom of the copper plate.
Preferably, a threaded hole is formed in the middle of the copper plate, and the fixing bolt penetrates through the threaded hole.
Preferably, one end of the lead is mounted in the copper pipe.
Preferably, the tapered portion is integrally formed with the ground rod.
Preferably, the thickness of the resistance reducing layer is more than 2 cm.
Preferably, the outer side of the middle of the lead is sleeved with a fixing clip.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the arranged grounding upper end comprises angle iron, a lightning rod and a fixing bolt, the angle iron can be installed and fixed at the top of the power transmission frame through the fixing bolt, and the lightning rod has a lightning protection effect; the earth bar below that sets up is provided with the toper portion for the earth bar is installed the below ground easily, makes simple to operate, and the cover is established and is established the enough big current flow face of resistance layer formation in the earth bar outside, and can reduce soil resistivity around to soil infiltration on every side, forms a low resistance region that changes gently around the grounding body, makes the ground connection switch-on effectual.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.
Fig. 1 is a ground upper end structure diagram of a grounding device for a power transmission line according to an embodiment of the present invention.
Fig. 2 is a structure diagram of a grounding lower end of a grounding device for a power transmission line according to an embodiment of the present invention.
Fig. 3 is a connection terminal structure diagram of a grounding device for a power transmission line according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the present embodiment provides a grounding device for a power transmission line, which includes a grounding upper end 1 and a grounding lower end 2, where the grounding upper end 1 is connected to the grounding lower end 2 through a wire 3, the grounding upper end 1 includes an angle iron 4, a lightning rod 5 and a fixing bolt 6, and when being installed, the angle iron 4 is installed on a top cross beam of the power transmission frame and is fixed by the fixing bolt 6. The lightning rod 5 is radially welded on the surface of the angle iron 4 and has a lightning protection effect. The 6 levels of fixing bolt pass 4 sides of angle bar, the 6 terminal covers of fixing bolt are equipped with binding post 7, binding post 7 bottom and 3 top fixed connection of wire for the conduction of electric current.
The grounding lower end 2 comprises a grounding rod 8 and a resistance reducing layer 9 sleeved outside the grounding rod 8, wherein the resistance reducing layer 9 contains fine graphite, bentonite, a curing agent, a lubricant and conductive cement, is a good electric conductor and can be used between a grounding body and soil to be in close contact with the metal grounding body on one hand so as to form a sufficiently large current flowing surface; on the other hand, the low-resistance grounding body can permeate into the surrounding soil, so that the resistivity of the surrounding soil is reduced, and a low-resistance area with gentle change is formed around the grounding body. A conical part 10 is arranged below the ground rod 8, the diameter of the upper part of the conical part 10 is larger than that of the ground rod 8, and the upper surface of the conical part 10 is flush with the surface of the resistance reducing layer 9, so that the conical part 10 and the surface of the resistance reducing layer 9 are installed as a whole. A wiring board 11 is fixed above the grounding rod 8, the wiring board 11 is fixedly connected with the bottom of the lead 3, a round hole is formed in the middle of the wiring board 11, and the lead 3 can penetrate through the round hole to be wound and fixed. The earth bar 8 fixed surface of wiring board 11 both sides has bracing piece 12 (the junction welds), bracing piece 12 top is provided with and is horizontally mounting panel 13 (the junction welds), during the installation, excavates on ground, then inserts the pit bottom of excavation with toper portion 10, makes earth bar 8 further downwards through exerting pressure to mounting panel 13, then backfill the earthwork, guarantees that mounting panel 13 is in the below ground this moment.
The connecting terminal 7 comprises a copper plate 14 and a copper tube 15 fixed at the bottom of the copper plate 14. The middle of the copper plate 14 is provided with a threaded hole 16, and the fixing bolt 6 passes through the threaded hole 16 and is used for fixing the whole wiring terminal 7.
One end of the lead 3 is arranged in the copper tube 15, and after one end of the lead 3 is placed in the copper tube 15, the copper tube 15 is flattened by using pliers, so that the lead 3 can be fixed.
The conical part 10 and the grounding rod 8 are integrally formed by steel pouring, so that the structure is firm.
The thickness of the resistance reducing layer 9 is larger than 2cm, and the conductive area of the grounding rod 8 can be increased by the resistance reducing layer 9.
The outer side cover in the middle part of wire 3 is equipped with fixing clip 17, and fixing clip 17 is semi-circular fixing clip, and fixing clip 17 can make wire 3 along the in-process position stability that transmission frame top downwardly extending to ground, and fixing clip 17 (both ends have the screw hole, carry out fixed mounting through the bolt) is fixed on the support frame of transmission frame.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the arranged grounding upper end comprises angle iron, a lightning rod and a fixing bolt, the angle iron can be installed and fixed at the top of the power transmission frame through the fixing bolt, and the lightning rod has a lightning protection effect; the earth bar below that sets up is provided with the toper portion for the earth bar is installed the below ground easily, makes simple to operate, and the cover is established and is established the enough big current flow face of resistance layer formation in the earth bar outside, and can reduce soil resistivity around to soil infiltration on every side, forms a low resistance region that changes gently around the grounding body, makes the ground connection switch-on effectual.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (7)
1. A grounding device for a power transmission line comprises a grounding upper end and a grounding lower end, wherein the grounding upper end is connected with the grounding lower end through a wire, and is characterized in that the grounding upper end comprises angle iron, a lightning rod and a fixing bolt, the lightning rod is welded on the surface of the angle iron in a radial shape, the fixing bolt horizontally penetrates through the side surface of the angle iron, the tail end of the fixing bolt is sleeved with a wiring terminal, the bottom of the wiring terminal is fixedly connected with the top of the wire, the grounding lower end comprises a grounding rod and a resistance reducing layer sleeved on the outer side of the grounding rod, a conical part is arranged below the grounding rod, the diameter of the upper part of the conical part is larger than that of the grounding rod, the surface of the upper part of the conical part is flush with the surface of the resistance reducing layer, a wiring board is fixed above the grounding rod and fixedly, the top of the support rod is provided with a horizontal mounting plate.
2. A grounding device for transmission lines as claimed in claim 1, characterized in that said terminal comprises a copper plate and a copper tube fixed to the bottom of the copper plate.
3. The grounding device for the transmission line as claimed in claim 2, wherein a threaded hole is provided in the middle of the copper plate, and the fixing bolt is inserted through the threaded hole.
4. A grounding device for a transmission line according to claim 2, wherein one end of said conductor is mounted in a copper tube.
5. A grounding device for a transmission line according to claim 1, characterized in that said conical portion is formed integrally with the ground rod.
6. A grounding device for transmission lines as in claim 1, wherein said resistance-reducing layer has a thickness greater than 2 cm.
7. A grounding device for transmission lines as claimed in claim 1, wherein a fixing clip is provided around the outside of the middle of said conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021454515.6U CN212303950U (en) | 2020-07-21 | 2020-07-21 | Grounding device for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021454515.6U CN212303950U (en) | 2020-07-21 | 2020-07-21 | Grounding device for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212303950U true CN212303950U (en) | 2021-01-05 |
Family
ID=73939098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021454515.6U Expired - Fee Related CN212303950U (en) | 2020-07-21 | 2020-07-21 | Grounding device for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212303950U (en) |
-
2020
- 2020-07-21 CN CN202021454515.6U patent/CN212303950U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 Termination date: 20210721 |