CN113507089A - Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester - Google Patents
Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester Download PDFInfo
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- CN113507089A CN113507089A CN202110465948.4A CN202110465948A CN113507089A CN 113507089 A CN113507089 A CN 113507089A CN 202110465948 A CN202110465948 A CN 202110465948A CN 113507089 A CN113507089 A CN 113507089A
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- lightning arrester
- plate
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- easy
- locking
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 19
- 230000037431 insertion Effects 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 7
- 208000025274 Lightning injury Diseases 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011900 installation process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Thermistors And Varistors (AREA)
Abstract
The utility model provides an electrified easy dismouting arrester based on spring auto-lock structure, includes the shaft tower cross arm, be provided with the installation board subassembly on the shaft tower cross arm, be provided with insulating pillar on the installation board subassembly, the top of insulating pillar is provided with the connecting rod, the one end of connecting rod is provided with the arrester subassembly, the other end of connecting rod passes through transmission circuit and is connected with the distribution lines. Also discloses a working principle of the electrified lightning arrester easy to assemble and disassemble based on the spring self-locking structure. The invention has the following advantages: (1) the gap distance is fixed, the installation is simple, and the poor protection effect caused by inaccurate adjustment of the gap distance in the installation process can be avoided; (2) the lightning arrester can be disassembled and assembled (3) without power failure when the lightning arrester is replaced by a simple screwing-in and screwing-out operation, so that the operation reliability of a power grid is improved; (4) the lightning arrester body can pass a whole 65kA high-current test and has excellent current-flowing performance.
Description
Technical Field
The invention relates to an electrified lightning arrester easy to assemble and disassemble based on a spring self-locking structure and a working principle thereof.
Background
The lightning arrester is an important device for preventing lightning overvoltage all the time, and plays an important role in reducing the tripping of a distribution line and protecting wire equipment from being damaged by the lightning overvoltage. The gap lightning arrester of the protection circuit does not bear overvoltage when in normal operation, and has the characteristics of reliable performance, small and exquisite appearance, light weight, flexible installation and the like. However, the gap arresters currently used in the market have the following problems: firstly, although some line arresters can be assembled and disassembled in an electrified way at present, the line arrester mainly aims at a gapless arrester and cannot be applied to the line arrester; secondly, the bolt needs to be rotated in the dismounting mode, so that an operator can hardly operate the device accurately when standing on the ground; thirdly, the lightning arrester body is easy to damage, influences the insulator life-span.
Disclosure of Invention
The invention aims to provide an electrified lightning arrester easy to disassemble and assemble based on a spring self-locking structure and a working principle thereof.
The technical scheme includes that the electrified lightning arrester easy to disassemble and assemble based on the spring self-locking structure comprises a pole tower cross arm, wherein an installation plate assembly is arranged on the pole tower cross arm, an insulating support column is arranged on the installation plate assembly, a connecting rod is arranged at the top of the insulating support column, a lightning arrester assembly is arranged at one end of the connecting rod, and the other end of the connecting rod is connected with a distribution line through a transmission circuit.
Further, the mounting panel subassembly is including being fixed in the horizontal plate of insulating pillar bottom, the one end of horizontal plate towards the arrester subassembly is provided with the vertical plate, link firmly through the connecting plate between horizontal plate and the shaft tower cross arm.
Furthermore, the connecting plate is a Z-shaped plate, the connecting plate comprises a high plate and a low plate, the high plate is fixedly connected with the horizontal plate through a bolt, the low plate is fixedly connected with the tower cross rod through a bolt, and an installation gap for accommodating a bolt head or a nut is formed between the low plate and the horizontal plate.
Further, the arrester subassembly includes position guard and arrester body, the top of arrester body is provided with the spring sleeve that can insert in the position guard, the spring sleeve interpolation is equipped with the spring, be provided with two at least card posts on the telescopic lateral wall of spring, the card post becomes the circumferencial direction equipartition, the bottom of arrester body is provided with the bulb electrode, the bulb electrode corresponds the setting with the vertical plate.
Further, the position cover is including the cylinder portion that is located upper portion and the loudspeaker portion that is located the lower part, be provided with two at least locking mouths on the lateral wall of cylinder portion, locking mouth and calorie of post one-to-one, the locking mouth includes the insertion groove of vertical setting and the locking groove of vertical setting, the top in insertion groove and locking groove is through the intercommunication groove intercommunication, the insertion groove downwardly extending to loudspeaker portion.
Further, the outside cover of location cover is equipped with the safety cover.
Further, the top of the cylindrical part is provided with a threaded hole matched with the connecting rod.
Further, the connecting rod comprises a flat plate part and a rod-shaped part, the flat plate part is fixedly connected with the top surface of the insulating support through a bolt, the tail end of the rod-shaped part is bent downwards and is provided with an external thread, and the bending angle of the rod-shaped part is 90 degrees.
Furthermore, transmission circuit includes the transmission wire, transmission wire's one end links firmly with the distribution lines through the fastener, and the other end passes through lug and flat plate portion and passes through bolted connection.
The utility model provides a theory of operation of electrified easy dismouting arrester based on spring auto-lock structure: when the lightning stroke of the power line causes the lightning arrester body to be damaged, the live operating rod is used for jacking the lightning arrester body and extruding the spring to rotate anticlockwise, and the clamping column on the side wall of the spring sleeve is separated from the positioning cover along the locking groove, the communication groove and the insertion groove, so that the failed lightning arrester body is taken down; when the lightning arrester is required to be installed, the lightning arrester body is jacked into the positioning cover by the hot-line operating rod and rotates clockwise, the clamping column on the side wall of the spring sleeve is clamped into the positioning cover along the insertion groove, the communication groove and the locking groove, and the spring can tightly press the clamping column at the bottom end of the locking groove to prevent the lightning arrester from falling.
Compared with the prior art, the invention has the following advantages: (1) the gap distance between the ball electrode and the vertical plate is fixed, the installation is simple, and the poor protection effect caused by inaccurate adjustment of the gap distance in the installation process can be avoided; (2) the lightning arrester can be disassembled and assembled (3) without power failure when the lightning arrester is replaced by a simple screwing-in and screwing-out operation, so that the operation reliability of a power grid is improved; (4) the lightning arrester body can pass a whole 65kA high-current test and has excellent current-flowing performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of a mounting plate assembly;
fig. 4 is a schematic view of the arrester assembly (omitting the positioning cap);
FIG. 5 is a sectional view taken along area A of FIG. 4
FIG. 6 is a schematic view of a retaining cap;
in the figure: 1-ball-head electrode, 2-lightning arrester body, 3-positioning cover, 4-protective cover, 5-connecting rod, 6-insulating support, 7-horizontal plate, 8-wire clamp, 9-air gap, 10-spring, 11-spring sleeve, 12-clamping column, 13-tower cross arm, 14-vertical plate, 15-high plate, 16-low plate, 17-connecting plate, 18-cylindrical part, 19-horn part, 20-locking port, 21-insertion groove, 22-locking groove, 23-communication groove, 24-threaded hole, 25-flat plate part, 26-rod part and 27-transmission wire.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1-6.
The utility model provides an electrified easy dismouting arrester based on spring auto-lock structure, includes the shaft tower cross arm, is equipped with the distribution lines across above the shaft tower cross arm, be provided with installation board subassembly on the shaft tower cross arm, be provided with insulating pillar on the installation board subassembly, the top of insulating pillar is provided with the connecting rod, the one end of connecting rod is provided with the arrester subassembly, and the arrester subassembly is parallel with the axis of connecting rod, the other end of connecting rod passes through transmission circuit and is connected with the distribution lines.
In this embodiment, the mounting panel subassembly is including being fixed in the horizontal plate of insulating pillar bottom, the horizontal plate is provided with the vertical plate towards the one end of arrester subassembly, and the vertical plate is downwardly extending under the normal conditions, forms air gap with the arrester subassembly, link firmly through the connecting plate between horizontal plate and the shaft tower cross arm to install and maintain.
In this embodiment, the connecting plate is a "Z" shaped plate, and may be divided into a high plate and a low plate according to the difference in height between two flat plates of the "Z" shaped plate, the high plate is fixedly connected with the horizontal plate through a bolt, the low plate is fixedly connected with the tower cross bar through a bolt, and an installation gap for accommodating the bolt head or the nut is formed between the low plate and the horizontal plate.
In this embodiment, the arrester subassembly includes position guard and arrester body, and the arrester body adopts the structure of publicly known metal oxide arrester, contains zinc oxide component material, the top of arrester body is provided with the spring sleeve that can insert in the position guard, the spring sleeve interpolation is equipped with the spring, be provided with two at least card posts on the spring sleeve's the lateral wall, the card post becomes the circumferencial direction equipartition, the bottom of arrester body is provided with the bulb electrode, the bulb electrode corresponds the setting with the vertical plate, forms the air gap. An anti-rust layer is coated outside the bulb electrode.
In this embodiment, the position cover is including the cylinder portion that is located the upper portion and the loudspeaker portion that is located the lower part, be provided with two at least locking mouths on the lateral wall of cylinder portion, locking mouth and calorie of post one-to-one, the locking mouth includes the insertion groove of vertical setting and the locking groove of vertical setting, the top in insertion groove and locking groove is through the intercommunication groove intercommunication, the insertion groove downwardly extending to loudspeaker portion. When the spring sleeve inserts in the position cover, the card post passes through the insertion slot and enters into the locking mouth, because the insertion slot extends to loudspeaker portion, consequently can appear one and be used for the breach that the card post passes through, after inserting along insertion slot, UNICOM's groove entering locking groove, the card post is in the bottom of locking groove under the effect of spring, realizes the locking.
In this embodiment, the outside cover of location cover is equipped with the safety cover to it causes the card to die to avoid the dust and sand to get into in the location cover.
In this embodiment, the top of the cylindrical portion is provided with a threaded hole for engaging with a connecting rod.
In this embodiment, the connecting rod includes a flat plate portion and a rod portion, the flat plate portion is fixedly connected with the top surface of the insulating pillar through a bolt, the end of the rod portion is bent downward and provided with an external thread, and the bending angle of the rod portion is 90 °, so that after assembly, the space between the ball-end electrode and the vertical plate is fixed.
In this embodiment, the transmission circuit includes the transmission wire, the one end of transmission wire links firmly with the distribution lines through the fastener, and the other end passes through lug and flat plate portion and passes through bolted connection.
The utility model provides a theory of operation of electrified easy dismouting arrester based on spring auto-lock structure: when the lightning stroke of the power line causes the lightning arrester body to be damaged, the live operating rod is used for jacking the lightning arrester body and extruding the spring to rotate anticlockwise, and the clamping column on the side wall of the spring sleeve is separated from the positioning cover along the locking groove, the communication groove and the insertion groove, so that the failed lightning arrester body is taken down; when the lightning arrester is required to be installed, the lightning arrester body is jacked into the positioning cover by the hot-line operating rod and rotates clockwise, the clamping column on the side wall of the spring sleeve is clamped into the positioning cover along the insertion groove, the communication groove and the locking groove, and the spring can tightly press the clamping column at the bottom end of the locking groove to prevent the lightning arrester from falling. Because the disassembly and assembly process can be carried out by using the live operating rod, the lightning arrester body can be replaced under the live condition.
The lightning protection principle of the invention is as follows: when the power line is struck by lightning, under the action of lightning overvoltage, the air gap between the vertical plate and the ball head electrode is broken down, the lightning arrester body presents low impedance, and the lightning flows through the lightning arrester body, the air gap, the mounting plate assembly and the tower cross arm to be discharged into the ground; after the lightning impulse, power frequency voltage loads on the arrester body, and the resistance of arrester body grow in the twinkling of an eye, and the electric current that passes through is arc current and is suppressed at lower numerical value, and air gap arc voltage drop increases, and air gap's insulation resumes rapidly, and electric arc extinguishes naturally in the very short time, and the power frequency afterflow is interrupted completely, resumes normal operating mode.
After the invention is operated by hanging the net, the operation maintenance personnel can judge whether the arrester has a fault according to the carbonization degree and the color indication of the paint on the surface of the ball electrode contacting the air. After finding that the arrester breaks down, can change with electricity.
It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an electrified easy dismouting arrester based on spring auto-lock structure, includes the shaft tower cross arm, its characterized in that, be provided with the installation board subassembly on the shaft tower cross arm, be provided with insulating pillar on the installation board subassembly, the top of insulating pillar is provided with the connecting rod, the one end of connecting rod is provided with the arrester subassembly, the other end of connecting rod passes through transmission circuit and is connected with the distribution lines.
2. The lightning arrester with the easy disassembly and assembly based on the spring self-locking structure as claimed in claim 1, wherein the mounting plate assembly comprises a horizontal plate fixed at the bottom of the insulating support, a vertical plate is arranged at one end of the horizontal plate facing the lightning arrester assembly, and the horizontal plate is fixedly connected with the cross arm of the tower through a connecting plate.
3. The lightning arrester with the easy assembly and disassembly based on the spring self-locking structure as claimed in claim 2, wherein the connecting plate is a "Z" shaped plate, the connecting plate comprises a high plate and a low plate, the high plate is fixedly connected with the horizontal plate through a bolt, the low plate is fixedly connected with the tower cross bar through a bolt, and an installation gap for accommodating a bolt head or a nut is formed between the low plate and the horizontal plate.
4. The lightning arrester as claimed in claim 2, wherein the lightning arrester assembly comprises a positioning cover and a lightning arrester body, a spring sleeve capable of being inserted into the positioning cover is arranged at the top of the lightning arrester body, a spring is inserted into the spring sleeve, at least two clamping columns are arranged on the side wall of the spring sleeve and are uniformly distributed in the circumferential direction, ball-head electrodes are arranged at the bottom of the lightning arrester body, and the ball-head electrodes are arranged corresponding to the vertical plate.
5. The lightning arrester with easy disassembly and assembly based on the spring self-locking structure as claimed in claim 4, wherein the positioning cover comprises a cylindrical portion located at the upper portion and a horn portion located at the lower portion, at least two locking openings are arranged on the side wall of the cylindrical portion, the locking openings correspond to the clamping posts in a one-to-one manner, the locking openings comprise a vertically arranged insertion groove and a vertically arranged locking groove, the insertion groove is communicated with the top of the locking groove through a communicating groove, and the insertion groove extends downwards to the horn portion.
6. The electrified lightning arrester with easy disassembly and assembly based on the spring self-locking structure as claimed in claim 5, wherein a protective cover is sleeved on the outer side of the positioning cover.
7. The lightning arrester with the easy disassembly and assembly function based on the spring self-locking structure as claimed in claim 5, wherein a threaded hole matched with the connecting rod is formed in the top of the cylindrical portion.
8. The charged lightning arrester based on the spring self-locking structure and easy to disassemble and assemble according to claim 1, wherein the connecting rod comprises a flat plate part and a rod-shaped part, the flat plate part is fixedly connected with the top surface of the insulating pillar through a bolt, the tail end of the rod-shaped part is bent downwards and provided with an external thread, and the bending angle of the rod-shaped part is 90 degrees.
9. The lightning arrester of claim 8, wherein the transmission circuit comprises a transmission wire, one end of the transmission wire is fixedly connected with the distribution line through a wire clamp, and the other end of the transmission wire is connected with the flat plate portion through a lug through a bolt.
10. An operation principle of the charged lightning arrester easy to disassemble and assemble based on the spring self-locking structure is characterized in that: when the lightning stroke of the power line causes the lightning arrester body to be damaged, the live operating rod is used for jacking the lightning arrester body and extruding the spring to rotate anticlockwise, and the clamping column on the side wall of the spring sleeve is separated from the positioning cover along the locking groove, the communication groove and the insertion groove, so that the failed lightning arrester body is taken down; when the lightning arrester is required to be installed, the lightning arrester body is jacked into the positioning cover by the hot-line operating rod and rotates clockwise, the clamping column on the side wall of the spring sleeve is clamped into the positioning cover along the insertion groove, the communication groove and the locking groove, and the spring can tightly press the clamping column at the bottom end of the locking groove to prevent the lightning arrester from falling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465948.4A CN113507089A (en) | 2021-04-28 | 2021-04-28 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465948.4A CN113507089A (en) | 2021-04-28 | 2021-04-28 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
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| Publication Number | Publication Date |
|---|---|
| CN113507089A true CN113507089A (en) | 2021-10-15 |
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| CN202110465948.4A Pending CN113507089A (en) | 2021-04-28 | 2021-04-28 | Electrified easy-to-dismount-and-mount lightning arrester based on spring self-locking structure and working principle of electrified easy-to-dismount-and-mount lightning arrester |
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| CN (1) | CN113507089A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023516A (en) * | 2021-11-10 | 2022-02-08 | 山东迅实电气有限公司 | Live-line dismounting lightning arrester capable of replacing insulator |
| CN117047804A (en) * | 2023-10-11 | 2023-11-14 | 广东电网有限责任公司广州供电局 | Intelligent lightning arrester installation robot based on tower pole operation |
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| JPH0779522A (en) * | 1993-09-08 | 1995-03-20 | Mitsubishi Electric Corp | Method for mounting arrester on pole |
| CN1346201A (en) * | 2000-10-04 | 2002-04-24 | 株式会社三富康姆尼克斯 | Connection structure for signal converter |
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| CN202549516U (en) * | 2012-03-07 | 2012-11-21 | 山东迅实电气有限公司 | Suspension type line arrester for alternating current system |
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| CN103490284A (en) * | 2013-09-30 | 2014-01-01 | 山东迅实电气有限公司 | External column type voltage limiter for urban rail catenary |
| CN110727179A (en) * | 2019-10-22 | 2020-01-24 | 中丰田光电科技(珠海)有限公司 | Novel fixing structure and method for optical platform |
| CN214674271U (en) * | 2021-04-28 | 2021-11-09 | 国网福建省电力有限公司 | Electrified easy dismouting arrester based on spring auto-lock structure |
-
2021
- 2021-04-28 CN CN202110465948.4A patent/CN113507089A/en active Pending
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|---|---|---|---|---|
| JPH0779522A (en) * | 1993-09-08 | 1995-03-20 | Mitsubishi Electric Corp | Method for mounting arrester on pole |
| CN1346201A (en) * | 2000-10-04 | 2002-04-24 | 株式会社三富康姆尼克斯 | Connection structure for signal converter |
| CN201576508U (en) * | 2009-10-24 | 2010-09-08 | 山东迅实电气有限公司 | Lightning arrester insulator used for insulated conductor for overhead line |
| CN202549516U (en) * | 2012-03-07 | 2012-11-21 | 山东迅实电气有限公司 | Suspension type line arrester for alternating current system |
| CN103027448A (en) * | 2012-10-26 | 2013-04-10 | 设计2有限公司 | Rotary lock catch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023516A (en) * | 2021-11-10 | 2022-02-08 | 山东迅实电气有限公司 | Live-line dismounting lightning arrester capable of replacing insulator |
| CN114023516B (en) * | 2021-11-10 | 2023-11-03 | 山东迅实电气有限公司 | Live dismounting lightning arrester capable of replacing insulator |
| CN117047804A (en) * | 2023-10-11 | 2023-11-14 | 广东电网有限责任公司广州供电局 | Intelligent lightning arrester installation robot based on tower pole operation |
| CN117047804B (en) * | 2023-10-11 | 2023-12-22 | 广东电网有限责任公司广州供电局 | Intelligent lightning arrester installation robot based on tower pole operation |
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Application publication date: 20211015 |