CN211790695U - Lightning arrester for power transmission line - Google Patents
Lightning arrester for power transmission line Download PDFInfo
- Publication number
- CN211790695U CN211790695U CN202020760836.2U CN202020760836U CN211790695U CN 211790695 U CN211790695 U CN 211790695U CN 202020760836 U CN202020760836 U CN 202020760836U CN 211790695 U CN211790695 U CN 211790695U
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- China
- Prior art keywords
- rod
- transmission line
- lightning arrester
- lightning
- arrester
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a transmission line lightning arrester belongs to the lightning-arrest technical field of transmission line, this transmission line lightning arrester, including insulating casing, the inside arrester core that runs through of insulating casing, insulating casing surface central line department is provided with ceramic circle, ceramic circle one side is provided with the dead lever, dead lever bottom surface runs through and is provided with the bolt, insulating casing bottom surface is provided with rain-proof cover, arrester core bottom is provided with the conducting rod, the conducting rod surface is provided with insulating sleeve, the conducting rod bottom is provided with the ground ring. A transmission line lightning arrester, be convenient for overhaul the change to the lightning rod to can avoid conducting rod and arrester core junction to contact the rainwater, lead to the electrified accident that causes of insulating sleeve surface.
Description
Technical Field
The utility model relates to a transmission line technical field that takes shelter from thunder specifically is a transmission line lightning arrester.
Background
The lightning arresters are classified into various types, including a metal oxide lightning arrester, a line type metal oxide lightning arrester, a line-free type metal oxide lightning arrester, a fully-insulated composite sheathed metal oxide lightning arrester, and a detachable lightning arrester. The alternating-current gapless metal oxide lightning arrester is used for protecting the insulation of alternating-current power transmission and transformation equipment from being damaged by lightning overvoltage and operation overvoltage. The overvoltage protection circuit is suitable for overvoltage protection of transformers, transmission lines, distribution panels, switch cabinets, power metering boxes, vacuum switches, parallel compensation capacitors, rotating motors, semiconductor devices and the like. The main types of arresters are tube-type arresters, valve-type arresters, zinc oxide arresters, and the like. The main operating principle of each type of arrester is different, but their operation is substantially the same, all in order to protect the communication cables and the communication equipment from damage. The line type lightning arrester is used for 6-220 kV alternating current transmission and transformation lines, aims to limit line lightning overvoltage and improve line lightning resistance level, and is a novel lightning arrester which is specially designed for reducing the tripping rate of a system caused by lightning faults and is hung on a transmission tower.
However, the existing lightning arrester for the power transmission line has the following problems:
1. the lightning rod adopts the metal material to make to rust unavoidably more, can influence the effect of lightning rod after the lightning rod rusts, so need often overhaul and change, but the lightning rod is difficult to dismantle among the current lightning arrester, produces the influence to maintenance work.
2. In thunderstorm weather, the outside insulating sleeve of conducting rod is drenched easily by the rainwater and is electrically conducted, can't produce insulating effect, thereby leaks the lightning current easily moreover and causes the transmission line incident.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a transmission line lightning arrester has solved the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a transmission line lightning arrester, includes insulating casing, the inside arrester core that runs through of insulating casing, insulating casing surface central line department is provided with the ceramic circle, ceramic circle one side is provided with the dead lever, dead lever bottom surface runs through and is provided with the bolt, insulating casing bottom surface is provided with rain-proof cover, arrester core bottom is provided with the conducting rod, the conducting rod surface is provided with insulating sleeve, the conducting rod bottom is provided with the ground ring, arrester core top is provided with fixing nut, the fixing nut upper surface is provided with the connecting rod, the connecting rod top is provided with the lightning rod.
As a preferred technical scheme of the utility model, the fixation nut internal surface is provided with inner thread structure, arrester core top is provided with the external screw thread structure, the fixation nut internal surface passes through helicitic texture and arrester core top threaded connection.
As a preferred technical scheme of the utility model, the connecting rod is provided with two sets ofly altogether, two sets of connecting rod bottoms respectively with fixation nut upper surface both sides fixed connection.
As a preferred technical scheme of the utility model, the lightning rod is the annular design, fixing nut, connecting rod, the used material of lightning rod all are copper.
As a preferred technical scheme of the utility model, the dead lever top is inlayed inside ceramic circle side, the bolt bottom is provided with the nut, the dead lever passes through bolt and outside body of rod fixed connection.
As a preferred technical scheme of the utility model, rain-proof cover is bottom open type cavity round platform structure, rain-proof cover top internal surface is provided with the sealing washer with insulating casing bottom surface junction.
As a preferred technical scheme of the utility model, arrester core bottom and conducting rod top fixed connection, the insulating sleeve top is located inside the rain-proof cover.
As a preferred technical scheme of the utility model, insulating sleeve and conducting rod bottom set up in the underground, ground ring top and conducting rod bottom fixed connection.
Compared with the prior art, the utility model provides a transmission line lightning arrester possesses following beneficial effect:
1. this transmission line lightning arrester, through the fixed connection of connecting rod bottom and fixation nut upper surface, can fix the connecting rod at the fixation nut upper surface with the lightning rod on connecting rod top, through the threaded connection on face and arrester core top in the fixation nut, can pull down fixation nut from arrester core top through contrary rotatory fixation nut and overhaul or change, adjust fixation nut inner circle and arrester core top well and clockwise rotation fixation nut can fix fixation nut on arrester core top, it is comparatively convenient.
2. This transmission line lightning arrester, through the sealing washer of rain-proof cover top internal surface, can be sealed with rain-proof cover and insulating casing junction, thereby prevent that the rainwater from getting into inside rain-proof cover in the same direction as rain-proof cover and insulating casing junction, through the bottom open type cavity round platform structure of rain-proof cover, insulating sleeve's top sets up in the inside of rain-proof cover moreover, can prevent that the rainwater from wafting into inside rain-proof cover, thereby avoid the transmission line incident that lightning current passes through insulating sleeve and the wet surface of conducting rod and causes.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the sectional structure of the insulating housing of the present invention;
FIG. 3 is a schematic view of the sectional structure of the insulating sleeve of the present invention;
fig. 4 is the structure diagram of the lightning rod of the present invention.
In the figure: 1. an insulating housing; 2. a lightning arrester core; 3. a ceramic ring; 4. fixing the rod; 5. a bolt; 6. a rain cover; 7. an insulating sleeve; 8. a conductive rod; 9. a ground ring; 10. fixing a nut; 11. a connecting rod; 12. a lightning rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, in this embodiment: the utility model provides a transmission line lightning arrester, including insulating casing 1, 1 inside running through of insulating casing is provided with arrester core 2, 1 surface central line department of insulating casing is provided with ceramic circle 3, 3 one side of ceramic circle are provided with dead lever 4, 4 bottom surface runs through of dead lever is provided with bolt 5, 1 bottom surface of insulating casing is provided with rain- proof cover 6, 2 bottoms of arrester core are provided with conducting rod 8, 8 surfaces of conducting rod are provided with insulating sleeve 7, 8 bottoms of conducting rod are provided with ground ring 9, 2 tops of arrester core are provided with fixing nut 10, 10 upper surfaces of fixing nut are provided with connecting rod 11, 11 tops of connecting rod are provided with lightning rod 12.
In the embodiment, the inner surface of the fixing nut 10 is provided with an internal thread structure, the top end of the lightning arrester core 2 is provided with an external thread structure, and the inner surface of the fixing nut 10 is in threaded connection with the top end of the lightning arrester core 2 through the thread structure; the two groups of connecting rods 11 are arranged, and the bottom ends of the two groups of connecting rods 11 are respectively fixedly connected with the two sides of the upper surface of the fixing nut 10; the lightning rod 12 is designed in an annular shape, and the fixing nut 10, the connecting rod 11 and the lightning rod 12 are all made of copper; the top end of the fixed rod 4 is embedded in the side surface of the ceramic ring 3, the bottom end of the bolt 5 is provided with a nut, and the fixed rod 4 is fixedly connected with an external rod body through the bolt 5; the rain cover 6 is of a hollow round table structure with an opening at the bottom end, and a sealing ring is arranged at the joint of the inner surface of the top end of the rain cover 6 and the outer surface of the bottom end of the insulating shell 1; the bottom end of the lightning arrester core 2 is fixedly connected with the top end of the conducting rod 8, and the top end of the insulating sleeve 7 is positioned inside the rain cover 6; the bottom ends of the insulating sleeve 7 and the conducting rod 8 are arranged underground, and the top end of the grounding ring 9 is fixedly connected with the bottom end of the conducting rod 8.
The utility model discloses a theory of operation and use flow: the user can fix the device on the external rod body by penetrating the bolt 5 through the bottom end surface of the fixed rod 4 and the external rod body, the connecting rod 11 and the lightning rod 12 at the top end of the connecting rod 11 can be fixed on the upper surface of the fixed nut 10 by fixedly connecting the bottom end of the connecting rod 11 and the upper surface of the fixed nut 10, the fixed nut 10 can be detached from the top end of the lightning arrester core 2 for maintenance or replacement by reversely rotating the fixed nut 10 by connecting the inner ring of the fixed nut 10 with the top end of the lightning arrester core 2 and clockwise rotating the fixed nut 10, the fixed nut 10 can be fixed on the top end of the lightning arrester core 2, the maintenance or replacement of the lightning rod 12 by an maintainer is facilitated, the joint of the rain cover 6 and the insulating shell 1 can be sealed by the sealing ring at the inner surface of the top end of the rain cover 6, thereby prevent that the rainwater from getting into rain-proof cover 6 inside along with rain- proof cover 6 and 1 junction of insulating casing, through the bottom open type cavity round platform structure of rain-proof cover 6, the top of insulating sleeve 7 sets up in the inside of rain-proof cover 6 in addition, can prevent that the rainwater from wafting into inside rain-proof cover 6 to avoid the transmission line incident that lightning current passes through insulating sleeve 7 and the wet surface of conducting rod 8 and causes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a transmission line lightning arrester, includes insulating casing (1), its characterized in that: insulating casing (1) is inside to run through and is provided with arrester core (2), insulating casing (1) surface central line department is provided with ceramic circle (3), ceramic circle (3) one side is provided with dead lever (4), dead lever (4) bottom surface runs through and is provided with bolt (5), insulating casing (1) bottom surface is provided with rain-proof cover (6), arrester core (2) bottom is provided with conducting rod (8), conducting rod (8) surface is provided with insulating sleeve (7), conducting rod (8) bottom is provided with ground ring (9), arrester core (2) top is provided with fixing nut (10), fixing nut (10) upper surface is provided with connecting rod (11), connecting rod (11) top is provided with lightning rod (12).
2. The lightning arrester of the power transmission line according to claim 1, characterized in that: the inner surface of the fixing nut (10) is provided with an internal thread structure, the top end of the lightning arrester core (2) is provided with an external thread structure, and the inner surface of the fixing nut (10) is in threaded connection with the top end of the lightning arrester core (2) through the thread structure.
3. The lightning arrester of the power transmission line according to claim 1, characterized in that: the connecting rods (11) are provided with two groups, and the bottom ends of the two groups of connecting rods (11) are fixedly connected with the two sides of the upper surface of the fixing nut (10) respectively.
4. The lightning arrester of the power transmission line according to claim 1, characterized in that: the lightning rod (12) is designed to be annular, and the fixing screw cap (10), the connecting rod (11) and the lightning rod (12) are all made of copper.
5. The lightning arrester of the power transmission line according to claim 1, characterized in that: the top end of the fixing rod (4) is embedded in the side surface of the ceramic ring (3), a nut is arranged at the bottom end of the bolt (5), and the fixing rod (4) is fixedly connected with an external rod body through the bolt (5).
6. The lightning arrester of the power transmission line according to claim 1, characterized in that: rain-proof cover (6) are bottom open type cavity round platform structure, rain-proof cover (6) top internal surface and insulating casing (1) bottom surface junction are provided with the sealing washer.
7. The lightning arrester of the power transmission line according to claim 1, characterized in that: the bottom end of the lightning arrester core (2) is fixedly connected with the top end of the conducting rod (8), and the top end of the insulating sleeve (7) is located inside the rain cover (6).
8. The lightning arrester of the power transmission line according to claim 1, characterized in that: the insulating sleeve (7) and the bottom end of the conducting rod (8) are arranged underground, and the top end of the grounding ring (9) is fixedly connected with the bottom end of the conducting rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760836.2U CN211790695U (en) | 2020-05-09 | 2020-05-09 | Lightning arrester for power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020760836.2U CN211790695U (en) | 2020-05-09 | 2020-05-09 | Lightning arrester for power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211790695U true CN211790695U (en) | 2020-10-27 |
Family
ID=72958160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020760836.2U Expired - Fee Related CN211790695U (en) | 2020-05-09 | 2020-05-09 | Lightning arrester for power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211790695U (en) |
-
2020
- 2020-05-09 CN CN202020760836.2U patent/CN211790695U/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 |
Granted publication date: 20201027 Termination date: 20210509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |