CN212874188U - Metal zinc oxide lightning arrester - Google Patents
Metal zinc oxide lightning arrester Download PDFInfo
- Publication number
- CN212874188U CN212874188U CN202021896764.0U CN202021896764U CN212874188U CN 212874188 U CN212874188 U CN 212874188U CN 202021896764 U CN202021896764 U CN 202021896764U CN 212874188 U CN212874188 U CN 212874188U
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- zinc oxide
- arrester
- wall
- arrester body
- insulator
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- Expired - Fee Related
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Abstract
The utility model relates to a metal zinc oxide arrester, including the arrester body, install the power equipment who is connected with the wire through the drainage ring on the arrester body outer wall, the power equipment bottom is installed the joint ring that is connected with the arrester body through the insulator support and is carried out ground protection, fixed mounting has anti-tripping all around along the insulator support for the joint ring outer wall, the arrester body is including arranging the sealing washer of shells inner wall bottom in, there is vertical superimposed zinc oxide valve block sealing washer one side through spring mounting, zinc oxide valve block top is equipped with the fuse that is connected with the working bus, and the fuse outside arranges in the insulator on the shells inner wall, zinc oxide valve block top both sides all are equipped with the mounting hole that is located the insulator bottom. Has the advantages that: the utility model discloses guarantee the stability of device operation, improve life, the installation of being convenient for is dismantled, personnel easy operation.
Description
Technical Field
The utility model relates to a lightning arrester technical field, concretely relates to metal zinc oxide lightning arrester.
Background
The zinc oxide arrester is an arrester with good protection performance. The current flowing through the lightning arrester is extremely small (microampere or milliampere) at normal working voltage by utilizing the good nonlinear volt-ampere characteristic of the zinc oxide; when overvoltage acts, the resistance drops sharply, and the energy of the overvoltage is released, so that the protection effect is achieved. The difference between the lightning arrester and the traditional lightning arrester is that the lightning arrester has no discharge gap and plays the role of current leakage and disconnection by utilizing the nonlinear characteristic of zinc oxide.
The existing zinc oxide arrester mainly has the following problems that 1, no matter the arrester is installed or the structure in the arrester is assembled, the arrester is generally a locking mechanism, so that the arrester is inconvenient to disassemble and install, for example, a ceramic sleeve is polluted and the discharge voltage is uneven due to the discharge gap between zinc oxide valve plates in the arrester; 2. in the long-time working process, when a circuit fails, the circuit cannot be effectively fused to cut off the current, so that the safe operation of the circuit is protected, the overload protection effect is achieved, and the safety of the device is not improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safe and reliable, improve life, the operation is stable and be convenient for install the metallic zinc oxide arrester of maintenance, is realized through following scheme.
In order to realize the above purpose, the utility model discloses a technical scheme be: a metal zinc oxide arrester comprises an arrester body, wherein power equipment connected with a wire is installed on the outer wall of the arrester body through a drainage ring, a clamping ring connected with the arrester body is installed at the bottom end of the power equipment through an insulator support and is subjected to ground protection, anti-tripping devices are fixedly installed on the outer wall of the clamping ring along the periphery of the insulator support, the arrester body comprises a sealing ring arranged at the bottom end of the inner wall of a shell, a vertically superposed zinc oxide valve block is installed on one side of the sealing ring through a spring, a fuse wire connected with a working bus is arranged at the top end of the zinc oxide valve block, the outside of the fuse wire is arranged in a porcelain bushing on the inner wall of the shell, mounting holes located at the bottom end of the porcelain bushing are formed in two sides of the top end of the zinc oxide valve block, a protruding portion matched with the zinc oxide valve block is arranged, the pressure strip bottom runs through the casing inside and extends to on the casing outer wall, and the pressure strip realizes locking fixedly through the bolt that is connected with the casing.
Furthermore, the power equipment further comprises a cross beam positioned at the bottom end of the power equipment, positioning holes are formed in two sides of the cross beam and are fixedly connected with an external stand column through bolt assemblies in the positioning holes, and the cross beam and the stand column are vertically arranged and are positioned on the same plane.
Further, the arrester body keeps parallel arrangement and all keeps parallel with the wire with power equipment.
Furthermore, a miniature circuit breaker is connected between the fuse and the zinc oxide valve plate.
Furthermore, the sealing ring is provided with a pinch plate which is connected with the spring and is arranged at the bottom end of the inner wall of the shell.
The technical effects of the utility model reside in that: the lightning arrester body is fixed by clamping the insulator bracket in the county area, and then further locking and fixing are realized by anti-tripping, so that subsequent installation and maintenance operations are facilitated, meanwhile, the bolt assembly connected with the external upright post through the positioning hole on the cross beam on the power equipment realizes effective connection and fixation, meanwhile, the zinc oxide valve plate is in a low resistance state under the action of lightning overvoltage to discharge lightning current, and the fuse wire is connected with the miniature circuit breaker, the miniature circuit breaker can automatically fuse and cut off the current when the current abnormally rises to a certain height and heat, the circuit is protected from safe operation, the overload protection function is realized, the zinc oxide valve plate is compressed through the spring, the gap discharge is avoided, such metal zinc oxide arrester greatly increased the practicality of device, guaranteed the stability of device operation, improved life, convenient to assemble and dismantle.
Drawings
Fig. 1 is a schematic view of the connection between the lightning arrester and the power equipment according to the present invention;
fig. 2 is a schematic structural view of the lightning arrester of the present invention.
Reference numerals: 1-a lightning arrester body; 2-a drainage ring; 3-a wire; 4-a power device; 5-an insulator bracket; 6-a snap ring; 7-sealing ring; 8-a spring; 9-zinc oxide valve plate; 10-a fuse; 11-porcelain bushing; 12-mounting holes; 13-compacting plate.
Detailed Description
Referring to the attached drawings 1-2, a metal zinc oxide arrester comprises an arrester body 1, wherein an electric power device 4 connected with a wire 3 is installed on the outer wall of the arrester body 1 through a current-guiding ring 2, a clamping ring 6 connected with the arrester body 1 is installed at the bottom end of the electric power device 4 through an insulator support 5 and is used for ground protection, an anti-tripping device is fixedly installed on the outer wall of the clamping ring 6 along the periphery of the insulator support 5, the arrester body 1 comprises a sealing ring 7 arranged at the bottom end of the inner wall of a shell, a vertically superposed zinc oxide valve plate 9 is installed on one side of the sealing ring 7 through a spring 8, a fuse wire 10 connected with a working bus is arranged at the top end of the zinc oxide valve plate 9, the outer part of the fuse wire 10 is arranged in a porcelain sleeve 11 on the inner wall of the shell, mounting holes 12 positioned at the bottom end of, and the mounting hole 12 is provided with a convex part matched with the zinc oxide valve plate 9, a pressure plate 13 is arranged between the spring 8 and the porcelain bushing 11, the bottom end of the pressure plate 13 penetrates through the inside of the shell and extends to the outer wall of the shell, and the pressure plate 13 is locked and fixed through a bolt connected with the shell.
The lightning arrester comprises a lightning arrester body 1 and a power device 4, and is characterized by further comprising a cross beam located at the bottom end of the power device 4, wherein positioning holes are formed in two sides of the cross beam and are fixedly connected with an external stand column through bolt assemblies on the positioning holes, the cross beam and the stand column are vertically arranged and are located on the same plane, and the lightning arrester body 1 and the power device 4 are arranged in parallel and are parallel to a wire.
The specific embodiment of the scheme is that a miniature circuit breaker is connected between the fuse wire 10 and the zinc oxide valve plate 9.
The specific embodiment of this scheme does, be equipped with on the sealing washer 7 and be connected with spring 8 and arrange the buckle in the casing inner wall bottom.
The specific embodiment of this scheme does, be equipped with the bulge on the zinc oxide valve block 9 and can realize the installation fixed by mounting hole 12 on the insulator 11, convenient location installation with zinc oxide valve block 9 like this prevents that the position from taking place the skew, and the personnel's of also being convenient for operation installation improves the practicality of device. Meanwhile, the pressing plate 13 is arranged between the spring 8 and the porcelain bushing 11, so that the pressing effect on the zinc oxide valve plate 9 on the porcelain bushing 11 can be further improved, and the stable operation of the lightning arrester is ensured.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A metal zinc oxide arrester comprises an arrester body (1) and is characterized in that power equipment (4) connected with a wire (3) is installed on the outer wall of the arrester body (1) through a current-guiding ring (2), a clamping ring (6) connected with the arrester body (1) is installed at the bottom end of the power equipment (4) through an insulator support (5) and is subjected to ground protection, the outer wall of the clamping ring (6) is fixedly provided with a tripping-proof device around the insulator support (5), the arrester body (1) comprises a sealing ring (7) arranged at the bottom end of the inner wall of a shell, a vertical stacked zinc oxide valve plate (9) is installed on one side of the sealing ring (7) through a spring (8), a fuse wire (10) connected with a working bus is arranged at the top end of the zinc oxide valve plate (9), and the outside of the fuse wire (10) is arranged in a porcelain sleeve (11) on the inner wall of the shell, zinc oxide valve block (9) top both sides all are equipped with mounting hole (12) that are located insulator (11) bottom, and are equipped with the bulge with zinc oxide valve block (9) looks adaptation on mounting hole (12), be equipped with pressure strip (13) between spring (8) and insulator (11), pressure strip (13) bottom runs through the casing inside and extends to the casing outer wall on, and pressure strip (13) realize locking fixedly through the bolt that is connected with the casing.
2. The metal zinc oxide arrester as claimed in claim 1, further comprising a beam located at the bottom end of the power equipment (4), wherein the beam is provided with positioning holes on both sides and is connected and fixed with an external column through bolt assemblies on the positioning holes, and the beam and the column are vertically arranged and located on the same plane.
3. A metallic zinc oxide arrester according to claim 1 characterized in that the arrester body (1) is arranged parallel to the power equipment (4) and parallel to the conductor.
4. A metallic zinc oxide arrester according to claim 1 characterized in that a miniature circuit breaker is connected between the fuse (10) and the zinc oxide valve plate (9).
5. The metallic zinc oxide arrester of claim 1, wherein the sealing ring (7) is provided with a pinch plate connected with the spring (8) and arranged at the bottom end of the inner wall of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021896764.0U CN212874188U (en) | 2020-09-03 | 2020-09-03 | Metal zinc oxide lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021896764.0U CN212874188U (en) | 2020-09-03 | 2020-09-03 | Metal zinc oxide lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212874188U true CN212874188U (en) | 2021-04-02 |
Family
ID=75193958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021896764.0U Expired - Fee Related CN212874188U (en) | 2020-09-03 | 2020-09-03 | Metal zinc oxide lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212874188U (en) |
-
2020
- 2020-09-03 CN CN202021896764.0U patent/CN212874188U/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: 20210402 Termination date: 20210903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |