CN116316388B - Lightning protection device for overhead line of power distribution network - Google Patents
Lightning protection device for overhead line of power distribution network Download PDFInfo
- Publication number
- CN116316388B CN116316388B CN202310311566.5A CN202310311566A CN116316388B CN 116316388 B CN116316388 B CN 116316388B CN 202310311566 A CN202310311566 A CN 202310311566A CN 116316388 B CN116316388 B CN 116316388B
- Authority
- CN
- China
- Prior art keywords
- pressing block
- clamping mechanism
- lightning protection
- protection device
- distribution network
- Prior art date
- 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.)
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- 238000003825 pressing Methods 0.000 claims abstract description 66
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000003973 paint Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims 3
- 238000007689 inspection Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulators (AREA)
Abstract
The invention discloses a lightning protection device for an overhead line of a power distribution network, which comprises an upper pressing block, a lower pressing block and a composite umbrella skirt, wherein the lower pressing block is arranged on the upper part of the composite umbrella skirt; the wire clamping device is characterized by further comprising a left clamping mechanism, a right clamping mechanism and a reverse linkage mechanism, wherein the left clamping mechanism and the right clamping mechanism are hinged on the lower pressing block, and the first clamping wheel and the second clamping wheel on the same side can synchronously contract to continuously clamp the wire by virtue of a rectangular frame and a guide rod on the reverse linkage mechanism, so that the wire can be stably fixed between the upper pressing block and the lower pressing block, and the problem that the wire is pulled by thorn teeth due to shaking and swinging when the wire is in typhoon or strong wind is effectively reduced; meanwhile, the temperature-changing paint is sprayed on the surface of the grading ring, when the lightning arrester breaks down, the power frequency arc is applied to the grading ring, and the grading ring is changed from orange to black, so that line inspection staff can find faults easily.
Description
Technical Field
The invention relates to the technical field of lightning protection insulators, in particular to a lightning protection device for an overhead line of a power distribution network.
Background
The lightning protection insulator is mainly used for supporting and lightning protection of the wire, in order to improve the conduction performance of lightning strike charge leading into the earth, the wire sheath is generally required to be punctured through the thorns, however, the manner of puncturing the wire sheath by the thorns is adopted to clamp, when in typhoon seasons, the high-voltage wire swings and shakes greatly under the action of wind force in coastal zones of a plurality of winds, and the problem that the wire clamping position is easy to be severely strained occurs.
Disclosure of Invention
The invention aims to solve the problems by providing a lightning protection device for an overhead line of a power distribution network aiming at the defects in the technology.
The invention provides a lightning protection device for an overhead line of a power distribution network, which comprises an upper pressing block, a lower pressing block and a composite umbrella skirt, wherein the lower pressing block is arranged on the upper part of the composite umbrella skirt; the device also comprises a left clamping mechanism, a right clamping mechanism and a reverse linkage mechanism, wherein the left clamping mechanism is hinged at two ends of one side of the lower pressing block, and the right clamping mechanism is hinged at two ends of the other side of the lower pressing block; the reverse linkage mechanism is arranged on the upper pressing block in a sliding manner, and the left clamping mechanism and the right clamping mechanism are connected to the push pipe of the reverse linkage mechanism, so that the first clamping wheel on the left clamping mechanism can rotate to enable the reverse linkage mechanism to drive the second clamping wheel on the right clamping mechanism to synchronously rotate.
Further, the left clamping mechanism and the right clamping mechanism further comprise a swinging beam, one end of the swinging beam is hinged to the lower pressing block, and the other end of the swinging beam is respectively and independently connected with the first clamping wheel and the second clamping wheel. The reverse linkage mechanism further comprises a U-shaped piece, a guide rod and a ring gear, the push pipe is connected to one side of the U-shaped piece, the guide rod is vertically arranged on two sides of the U-shaped piece, a rectangular guide hole is formed in the swing beam, and the guide rod is located in the rectangular guide hole; the ring gear is rotationally arranged on the upper pressing block, the pushing tube is provided with teeth, and the pushing tube is respectively meshed with two sides of the ring gear through the teeth; the tip of U-shaped spare is equipped with the rectangle frame, and first pinch roller and second pinch roller up end are equipped with the guide post, and the guide post is located the rectangle frame. The device also comprises a limiting rod, wherein the limiting rod is arranged at the end part of the U-shaped piece and is in sliding connection with the push pipe. The upper pressing block is provided with an annular groove, and the annular gear is rotationally arranged in the annular groove through a bearing; the two sides of the upper pressing block are horizontally arranged on the circular through holes, and the circular through holes are communicated with the annular groove; the push tube is arranged in the circular through hole in a sliding way. The end parts of the guide rod and the guide column are provided with external threads, and nuts are connected to the external threads in a threaded manner.
Further, the device also comprises a ratchet wheel, wherein the ratchet wheel is detachably connected with the ring gear through a connecting screw rod vertically arranged on the ring gear; the upper pressing block is also provided with a pawl which is elastically matched with the ratchet wheel. The pawl is rotationally arranged in the accommodating groove of the upper pressing block through the torsion spring; the pawl is provided with a deflector rod.
Further, the device also comprises an insulation shield, and the insulation shield is sleeved on the upper pressing block and the lower pressing block. Semicircular through holes are vertically and oppositely arranged on the upper pressing block and the lower pressing block, and thorns are arranged in the semicircular through holes; and an equalizing ring is arranged below the composite umbrella skirt, and temperature-changing paint is sprayed on the equalizing ring.
Compared with the prior art, the method has the following beneficial effects:
the invention provides a lightning protection device for an overhead line of a power distribution network, which is characterized in that a left clamping mechanism and a right clamping mechanism are hinged on a lower pressing block, and a rectangular frame and a guide rod on a reverse linkage mechanism are used for enabling a first clamping wheel and a second clamping wheel on the same side to synchronously shrink to continuously clamp a wire, so that the wire can be stably fixed between the upper pressing block and the lower pressing block, and the problem that the wire is damaged by thorn teeth due to shaking and swinging when the wire is in typhoon or strong wind is effectively reduced; meanwhile, the temperature-changing paint is sprayed on the surface of the grading ring, when the lightning arrester breaks down, the power frequency arc is applied to the grading ring, and the grading ring is changed from orange to black, so that line inspection staff can find faults easily.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only preferred embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a lightning protection device for an overhead line of a power distribution network according to the present invention;
FIG. 2 is an enlarged partial schematic view of the invention A;
FIG. 3 is an enlarged partial schematic view of the present invention B;
FIG. 4 is an axial view of an overhead line lightning protection device for a power distribution network according to the present invention;
FIG. 5 is an enlarged partial schematic view of the present invention C;
fig. 6 is a partially enlarged schematic view of the present invention D.
In the figure, 1-upper pressing block; 2-pressing blocks; 3-a composite umbrella skirt; 4-pushing the tube; 5-swinging beams; 6-a compression wheel; 7-a guide post; 8-ratchet wheel; 9-pawl; 10-a deflector rod; 11-a limit rod; 21-U-shaped member; 22-a guide rod; 23-a ring gear; 24-rectangular frame; 41-teeth; 51-rectangular guide holes; 61-a first pinch wheel; 62-second pinch wheel.
Detailed Description
For a better understanding of the present invention, its construction, and the functional features and advantages attained by the same, reference should be made to the accompanying drawings in which:
example 1:
as shown in fig. 1 to 6, the invention provides a lightning protection device for an overhead line of a power distribution network, which comprises an upper pressing block 1, a lower pressing block 2 and a composite umbrella skirt 3, wherein the lower pressing block 2 is arranged on the upper part of the composite umbrella skirt 3, the composite umbrella skirt 3 is arranged on the lower pressing block 2, and the upper pressing block 1 is detachably connected with the lower pressing block 2; the device also comprises a left clamping mechanism, a right clamping mechanism and a reverse linkage mechanism, wherein the left clamping mechanism is hinged at two ends of one side of the lower pressing block 2, and the right clamping mechanism is hinged at two ends of the other side of the lower pressing block 2; the reverse linkage mechanism is arranged on the upper pressing block 1 in a sliding manner, the left clamping mechanism and the right clamping mechanism are connected to the push tube 4 of the reverse linkage mechanism, so that the first clamping wheel 61 on the left clamping mechanism drives the second clamping wheel 62 on the right clamping mechanism to synchronously rotate through rotation, and the two first clamping wheels 61 and the two second clamping wheels 62 on two sides of a wire continuously tighten and clamp the wire.
Specifically, the left clamping mechanism and the right clamping mechanism further comprise a swinging beam 5, one end of the swinging beam 5 is hinged on the lower pressing block 2, and the other end of the swinging beam 5 is respectively and independently connected with the first clamping wheel 61 and the second clamping wheel 62. The reverse linkage mechanism further comprises a U-shaped piece 21, a guide rod 22 and a ring gear 23, the push tube 4 is connected to one side of the U-shaped piece 21, the guide rod 22 is vertically arranged on two sides of the U-shaped piece 21, the swing beam 5 is provided with a rectangular guide hole 51, and the guide rod 22 is positioned in the rectangular guide hole 51; the ring gear 23 is rotatably arranged on the upper pressing block 1, the push tube 4 is provided with teeth 41, and the push tube 4 is respectively meshed with two sides of the ring gear 23 through the teeth 41; the end of the U-shaped piece 21 is provided with a rectangular frame 24, the upper end surfaces of the first clamping wheel 61 and the second clamping wheel 62 are provided with guide posts 7, and the guide posts 7 are positioned in the rectangular frame 24. The device also comprises a limiting rod 11, wherein the limiting rod 11 is arranged at the end part of the U-shaped piece 21, and the limiting rod 11 is in sliding connection with the push tube 4. The upper pressing block 1 is provided with an annular groove, and the annular gear 23 is rotationally arranged in the annular groove through a bearing; the two sides of the upper pressing block 1 are horizontally arranged on circular through holes which are communicated with the annular groove; the push tube 4 is slidably arranged in the circular through hole. The ends of the guide rod 22 and the guide post 7 are provided with external threads, and nuts are screwed on the external threads so as to facilitate the installation of the left clamping mechanism and the right clamping mechanism in a detachable connection manner with the reverse linkage mechanism respectively through the arrangement of the external threads.
Specifically, the device also comprises an insulation shield, and the insulation shield is sleeved on the upper pressing block 1 and the lower pressing block 2. Semicircular through holes are vertically and oppositely arranged on the upper pressing block 1 and the lower pressing block 2, and thorns are arranged in the semicircular through holes; an equalizing ring is arranged below the composite umbrella skirt 3, and temperature-changing paint is sprayed on the equalizing ring. When the lightning arrester faults are broken down, the power frequency electric arc is applied to the grading ring, and the grading ring is changed from orange to black, so that line inspection staff can easily find faults.
Specifically, the lightning protection device can adopt the striking rod and the striking head to replace the equalizing ring to realize that when lightning stroke occurs, the striking rod and the lower steel foot cause flashover discharge, and the striking head sprays a red striking coating or temperature rise coating, so that when lightning stroke occurs, a strong current knocks down the red striking coating or the striking head changes the color of the temperature rise coating on the striking head due to the temperature rise, and the lightning protection device is convenient for line inspection personnel to easily find faults.
Example 2:
as shown in fig. 1 to 6, in combination with the technical solution of embodiment 1, the present embodiment further includes a ratchet wheel 8, where the ratchet wheel 8 is detachably connected to the ring gear 23 through a connecting screw vertically provided on the ring gear 23; the upper pressing block 1 is also provided with a pawl 9 which is elastically matched with the ratchet wheel 8. The pawl 9 is rotationally arranged in the accommodating groove of the upper pressing block 1 through a torsion spring; the pawl 9 is provided with a deflector rod 10, so that the pawl 9 is rotated by the deflector rod 10 to be separated from the ratchet wheel 8, and the forward rotation freedom degree of the ring gear 23 is released; the pawl 9 is arranged to prevent the pull tube from extending outwards to push the swing beam 5 to be unfolded, so that the problem that the clamping wheel is separated from the lead is avoided. During installation, the pawl 9 is required to rotate the ratchet wheel 8 to drive the ring gear 23 to adjust the tightness of the swing beam 5 after being rotated into the storage groove through the deflector rod 10, so that the clamping wheel can be clamped on a wire, and the wire clamping device can be suitable for clamping wires with different diameters. Further, the length of the rectangular frame 24 is larger than the diameter of the guide post 7, when the clamping wheel is adjusted to clamp and guide, the clamping wheel can be rotated to the position, at the farthest end of the guide post 7, of the clamping wheel, at the moment, the rectangular frame 24 is sleeved into the guide post 7, so that when the wire shakes and pulls the clamping wheel to rotate outwards, the pulling pipe can be pushed to slide and shrink into the upper pressing block 1.
Working principle: the upper pressing block 1 and the lower pressing block 2 are arranged on a lead, the ratchet wheel 8 is rotated to drive the ring gear 23 to drive the pull tube to pull the U-shaped piece 21 to move towards the pressing block direction, so that the guide rod 22 pushes the swing beam 5 to swing to enable the clamping wheel at the end part of the swing beam to clamp the lead; when the wire shakes or swings, the clamping wheel clamped with the wire rotates under the pulling of the wire, so that the guide post 7 on the clamping wheel pushes the rectangular frame 24 to drive the U-shaped piece 21 to move to one side of the pressing block, the pull tube pulls the swinging beam 5 to tighten so that the clamping wheel continuously clamps two sides of the wire, and the wire is reduced to be pulled at two sides of the upper pressing block 1 and the lower pressing block 2, so that the thorn teeth of the wire are pulled to hurt the wire.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a distribution network overhead line lightning protection device which is characterized in that, including last briquetting (1), lower briquetting (2) and compound umbrella skirt (3), lower briquetting (2) are located compound umbrella skirt (3) upper portion, compound umbrella skirt (3) are located on lower briquetting (2), go up briquetting (1) with lower briquetting (2) detachable connection; the device further comprises a left clamping mechanism, a right clamping mechanism and a reverse linkage mechanism, wherein the left clamping mechanism is hinged to two ends of one side of the lower pressing block (2), and the right clamping mechanism is hinged to two ends of the other side of the lower pressing block (2); the reverse linkage mechanism is arranged on the upper pressing block (1) in a sliding manner, the left clamping mechanism and the right clamping mechanism are connected to a push pipe (4) of the reverse linkage mechanism, so that a first clamping wheel (61) on the left clamping mechanism rotates to enable the reverse linkage mechanism to drive a second clamping wheel (62) on the right clamping mechanism to synchronously rotate;
the left clamping mechanism and the right clamping mechanism further comprise a swinging beam (5), one end of the swinging beam (5) is hinged to the lower pressing block (2), and the other end of the swinging beam (5) is respectively and independently connected with the first clamping wheel (61) and the second clamping wheel (62);
the reverse linkage mechanism further comprises a U-shaped piece (21), a guide rod (22) and a ring gear (23), the push tube (4) is connected to one side of the U-shaped piece (21), the guide rod (22) is vertically arranged on two sides of the U-shaped piece (21), a rectangular guide hole (51) is formed in the swing beam (5), and the guide rod (22) is located in the rectangular guide hole (51); the ring gear (23) is rotatably arranged on the upper pressing block (1), the push tube (4) is provided with teeth (41), and the push tube (4) is respectively meshed with two sides of the ring gear (23) through the teeth (41); the end of the U-shaped piece (21) is provided with a rectangular frame (24), the upper end faces of the first clamping wheel (61) and the second clamping wheel (62) are provided with guide posts (7), and the guide posts (7) are located in the rectangular frame (24).
2. The overhead line lightning protection device for a power distribution network according to claim 1, wherein an annular groove is formed in the upper pressing block (1), and the annular gear (23) is rotatably arranged in the annular groove through a bearing; the two sides of the upper pressing block (1) are horizontally arranged on circular through holes, and the circular through holes are communicated with the annular groove; the push tube (4) is arranged in the circular through hole in a sliding manner.
3. The overhead line lightning protection device for a power distribution network according to claim 2, further comprising a ratchet wheel (8), wherein the ratchet wheel (8) is detachably connected with the ring gear (23) through a connecting screw vertically arranged on the ring gear (23); a pawl (9) which is elastically matched with the ratchet wheel (8) is also arranged on the upper pressing block (1); the pawl (9) is rotationally arranged in the accommodating groove of the upper pressing block (1) through a torsion spring; a deflector rod (10) is arranged on the pawl (9).
4. A distribution network overhead line lightning protection device according to claim 3, further comprising a limit rod (11), wherein the limit rod (11) is arranged at the end of the U-shaped piece (21), and the limit rod (11) is slidably connected with the push pipe (4).
5. The overhead line lightning protection device for a power distribution network according to claim 1, wherein the end parts of the guide rod (22) and the guide post (7) are provided with external threads, and nuts are connected to the external threads in a threaded manner.
6. The overhead line lightning protection device for a power distribution network according to claim 1, further comprising an insulation shield, wherein the insulation shield is sleeved on the upper pressing block (1) and the lower pressing block (2).
7. The lightning protection device for the overhead line of the power distribution network according to claim 1, wherein semicircular through holes are vertically and oppositely arranged on the upper pressing block (1) and the lower pressing block (2), and thorns are arranged in the semicircular through holes.
8. The lightning protection device for the overhead line of the power distribution network according to claim 3, wherein an equalizing ring is arranged below the composite umbrella skirt (3), and temperature-variable paint is sprayed on the equalizing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311566.5A CN116316388B (en) | 2023-03-28 | 2023-03-28 | Lightning protection device for overhead line of power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310311566.5A CN116316388B (en) | 2023-03-28 | 2023-03-28 | Lightning protection device for overhead line of power distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116316388A CN116316388A (en) | 2023-06-23 |
| CN116316388B true CN116316388B (en) | 2024-01-05 |
Family
ID=86788546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310311566.5A Active CN116316388B (en) | 2023-03-28 | 2023-03-28 | Lightning protection device for overhead line of power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116316388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990019019U (en) * | 1997-11-15 | 1999-06-05 | 김봉주 | Polymer line post insulator |
| CN202796272U (en) * | 2012-05-08 | 2013-03-13 | 武汉鑫今创电力设备有限公司 | Lightning protective circuit pole type composite insulator |
| CN110900628A (en) * | 2019-12-03 | 2020-03-24 | 南方电网科学研究院有限责任公司 | Automatic obstacle-crossing inspection robot |
| CN114156816A (en) * | 2021-11-29 | 2022-03-08 | 海南电网有限责任公司昌江供电局 | Column type porcelain bottle wire self-locking device |
| CN114336422A (en) * | 2021-11-30 | 2022-04-12 | 刘立高 | Power engineering cable support |
-
2023
- 2023-03-28 CN CN202310311566.5A patent/CN116316388B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990019019U (en) * | 1997-11-15 | 1999-06-05 | 김봉주 | Polymer line post insulator |
| CN202796272U (en) * | 2012-05-08 | 2013-03-13 | 武汉鑫今创电力设备有限公司 | Lightning protective circuit pole type composite insulator |
| CN110900628A (en) * | 2019-12-03 | 2020-03-24 | 南方电网科学研究院有限责任公司 | Automatic obstacle-crossing inspection robot |
| CN114156816A (en) * | 2021-11-29 | 2022-03-08 | 海南电网有限责任公司昌江供电局 | Column type porcelain bottle wire self-locking device |
| CN114336422A (en) * | 2021-11-30 | 2022-04-12 | 刘立高 | Power engineering cable support |
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| Publication number | Publication date |
|---|---|
| CN116316388A (en) | 2023-06-23 |
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