CN103474939B - The universal stand of controlled discharge lightning arrester is installed for high-voltage transmission line towers - Google Patents
The universal stand of controlled discharge lightning arrester is installed for high-voltage transmission line towers Download PDFInfo
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- CN103474939B CN103474939B CN201310176865.9A CN201310176865A CN103474939B CN 103474939 B CN103474939 B CN 103474939B CN 201310176865 A CN201310176865 A CN 201310176865A CN 103474939 B CN103474939 B CN 103474939B
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Abstract
A kind of universal stand (70) installing controlled discharge lightning arrester for high-voltage transmission line towers, comprise a shape plate (10), U-bolt (20), L-type boatswain chair (30) and bedplate (40), door shape plate (10) is removably affixed by U-bolt (20) and cross-arm (50), the vertical section (31) of L-type boatswain chair frame (30) is removably affixed with door shape plate (10), door shape plate (10) upper circular through hole (110), arc-shaped through-hole (111) is established in bottom, L-type boatswain chair (30) take manhole as the center of circle arcuately through hole (111) rotation, affixed bedplate (40) on the horizontal segment of L-type boatswain chair (30), bedplate (40) is removably fixed lightning arrester (80).This support can adapt to various tower, simply firm, easy to use and with low cost.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line device therefor, particularly relate to the universal stand installing controlled discharge lightning arrester for high-voltage transmission line towers.
Background technology
High-voltage electric power circuit under wild environment, thunderbolt is subject to during bad weather, therefore, high-voltage transmission line towers is installed controlled discharge lightning arrester become power train and unify the very important work of item, controlled discharge lightning arrester has a base support, the lightning arrester that its top is made up of main pin, dynamic ring and energy storage unit.Base support is the round steel pipe of a cubic plate shape Connection Block of band, comprises the round steel pipe of diameter 89mm, height 2000mm, or the round steel pipe of diameter 116mm, highly 3000mm.According to designing requirement, controlled discharge lightning arrester must be arranged on the highest point of steel tower or steel tower both sides overhead ground wire cross-arm that are subject to be struck by lightning.Existing steel tower kind is a lot, and overhead ground wire cross-arm is diversification feature.So each when installing lightning rod, all will send someone first to measure the size of steel tower, the concrete structure again according to steel tower after Data acquisition, completes designs corresponding surge arrester support.Like this, the workload of steel tower zinc oxide surge arresters is very large, and also will hole on steel tower and ground angle steel when constructing.On steel tower, boring band easily affects its structural strength.And the corrosion-prone threat of steel tower destroy zinc coat because holing after.
Prior art surge arrester support, is made up of door shape iron plate, U-bolt, boatswain chair frame, lightning arrester base support.In order to prevent surge arrester support from rocking on steel tower, door shape iron plate increases by a block pressur plate, and the waist of lightning arrester also needs increase girdle ring, if but pressing plate is pressed not tight, and equally easily cause lightning arrester to swing, fastness is poor.
Summary of the invention
The technical problem to be solved in the present invention is to avoid above-mentioned the deficiencies in the prior art part, and provides a kind of universal stand for high-voltage transmission line towers zinc oxide surge arresters, and its structure is simple, flexibility and reliability, easy to use and with low cost.
The technical scheme that the present invention solve the technical problem proposition is: design a kind of universal stand for high-voltage transmission line towers zinc oxide surge arresters, comprises a shape plate, U-bolt, L-type boatswain chair and bedplate, especially:
The overhead ground wire cross-arm outer surface of described steel tower is close to by described door shape plate, and be removably fixed together by described U-bolt and described cross-arm, and described door shape plate is close at the back side of the vertical section of described L-type boatswain chair and be removably fixed together with it, described door shape plate top is provided with the first manhole, bottom is provided with the arc-shaped through-hole corresponding with this first manhole, the height two ends of this arc-shaped through-hole respectively with described first manhole line, article two, between line shape at 45 ° ± angle of 2 °, thus described L-type boatswain chair is able to described first manhole is that the center of circle rotates along described arc-shaped through-hole, affixed described bedplate on the horizontal segment of described L-type boatswain chair, the bottom of this bedplate and described lightning arrester matches, and described lightning arrester is removably fixed on described bedplate.Described door shape plate comprises square plate, and this dull and stereotyped two ends vertical upwards forms two vertical arm of equal length, and this two vertical arm is close to the overhead ground wire cross-arm outer surface of described steel tower; At square plate four angles place of described door shape plate, four mutually corresponding between two the second manholes are set, accordingly, described U-bolt comprises two, two through holes of two corresponding described door shape plate one end of bolt heads difference of each U-bolt, like this, namely described door shape plate is removably fixed on the overhead ground wire cross-arm of described steel tower by described two U-bolts.
The low side of described arc-shaped through-hole is positioned at immediately below described first manhole, and this arc-shaped through-hole is exactly rotate 45 ° ± 2 ° to its high-end rear formation from its low side.
The vertical section of described L-type boatswain chair is respectively equipped with three manhole corresponding with described first manhole and described arc-shaped through-hole and the 4th manhole up and down, and by two bolts and described door shape plate removably affixed.
Described bedplate be with described lightning arrester bottom the square base seat board that matches, this bedplate, welds together with it above horizontal segment being flat on this L-type boatswain chair for symmetrical center line with the horizontal segment of described L-type boatswain chair.
After the overhead ground wire cross-arm of described steel tower crossed over by described U-bolt, door shape plate described in this is removably fixed on this cross-arm.
On the line of described first manhole between level second manhole of described door shape plate upper end two; On the low side of the described arc-shaped through-hole line between level second manhole of described door shape plate lower end two, described arc-shaped through-hole high-end between each second manhole in square plate corner place of described door shape plate.
Size, the shape of described bedplate and described lightning arrester base platform are identical, and are removably fixed on described bedplate by described lightning arrester by anchor bolt.
In the vertical section and described door shape plate of described L-type boatswain chair between the first through hole, set up pad.
Compared with the existing technology, the present invention is for the beneficial effect of the universal stand of high-voltage transmission line towers zinc oxide surge arresters:
1, surge arrester support can adapt to dissimilar steel tower, when steel tower overhead ground wire cross-arm relatively face tilt certain angle time, boatswain chair is rotated to boatswain chair and ground vertical along the arcuate socket on door shape plate and fixes, lightning arrester and ground vertical can be ensured.And existing surge arrester support, when the overhead ground wire cross-arm of steel tower and ground not parallel, relatively during face tilt, cannot from Row sum-equal matrix angle, to ensure that lightning arrester and ground are vertical state;
2, avoid the trouble that prior art increases pressing plate and increases girdle ring at lightning arrester waist on door shape plate, directly on door shape plate, open arcuate socket, make the overall structure of support compacter, firm;
3, simple, the strong adaptability of support overall structure, easy to use and with low cost.
Accompanying drawing explanation
Fig. 1 is the universal stand of the present invention for high-voltage transmission line towers zinc oxide surge arresters
Be assembled in the overall structure schematic diagram on steel tower cross-arm 50;
Fig. 2 is the decomposition texture schematic diagram of Fig. 1, and wherein steel tower cross-arm 50 is not shown;
Fig. 3 is a stereogram for shape plate 10;
Fig. 4 is Fig. 1 zinc oxide surge arresters structural representation after 80s;
Fig. 5 is the close-up schematic view of Fig. 4.
Embodiment
Below in conjunction with each accompanying drawing, content of the present invention is described in further detail.
With reference to shown in Fig. 1, Fig. 2 and Fig. 4, a kind of universal stand 70 for high-voltage transmission line towers zinc oxide surge arresters 80, lightning arrester 80 sits composition primarily of main pin, dynamic ring, girt (not shown) and the end, universal stand 70 is connected with the base of lightning arrester 80, to ensure lightning arrester 80 and ground vertical.Universal stand 70 comprises a shape plate 10, U-bolt 20, L-type boatswain chair 30 and bedplate 40, overhead ground wire cross-arm 50 outer surface of steel tower is close to by door shape plate 10, and by after the overhead ground wire cross-arm 50 of U-bolt 20 crossing tower, this shape plate 10 is removably fixed on this cross-arm 50, the back side of the vertical section 31 of L-type boatswain chair 30 is close to a shape plate 10 and is removably fixed together with it, door shape plate 10 top is provided with the first manhole 110, bottom is provided with the arc-shaped through-hole 111 corresponding with this first manhole 110, the height two ends of this arc-shaped through-hole 111 respectively with described first manhole line, article two, between line shape at 45 ° ± angle of 2 °, thus described L-type boatswain chair 30 is able to described first manhole 110 rotates along described arc-shaped through-hole 111 for the center of circle, affixed bedplate 40 on the horizontal segment of L-type boatswain chair 30, this bedplate 40 matches with the bottom of lightning arrester 80, and lightning arrester 80 is removably fixed on bedplate 40.
As shown in Figure 3, door shape plate 10 comprises square plate 11, and this dull and stereotyped two ends vertical upwards forms two vertical arm 12,13 of equal length, and this two vertical arm 12,13 is close to overhead ground wire cross-arm 50 outer surface of steel tower; At square plate 11 4 angles place of door shape plate 10, four mutually corresponding between two the second manholes 112 are set, accordingly, U-bolt 20 comprises two, two bolt heads of each U-bolt 20 are respectively to two through holes 112 of shape plate 10 one end of answering the door, like this, namely door shape plate 10 is removably fixed on the overhead ground wire cross-arm 50 of steel tower by two U-bolts 20, on the line of described first manhole 110 between described door shape plate 10 upper end two level second manhole 112; On the low side of described arc-shaped through-hole 111 line between described door shape plate 10 lower end two level second manhole 112, described arc-shaped through-hole 111 high-end between each second manhole 112 in square plate 11 4 jiaos of places of described door shape plate 10.This arc-shaped through-hole 111 is exactly rotate 45 ° ± 2 ° to its high-end rear formation from its low side.
The low side of arc-shaped through-hole 111 is positioned at immediately below the first manhole 110, and on line between door shape plate 10 lower end two level second manhole 112, like this, when cross-arm 50 is parallel to the ground, boatswain chair the low side of arc-shaped through-hole 111 and door shape plate 10 affixed, lightning arrester 80 and ground vertical can be made.
Again as shown in Figure 2, the vertical section about 31 of L-type boatswain chair 30 is respectively equipped with three manhole 310 corresponding with the first manhole 110 and arc-shaped through-hole 111 and the 4th manhole 311, and removably affixed by two bolts 60 and door shape plate 10.In diagram, the 3rd manhole 310 and the 4th manhole 311 the first half, like this, be convenient to boatswain chair 30 arcuately through hole 111 rotate.When arcuately through hole 111 rotates to lightning arrester 80 and ground vertical boatswain chair 30, with bolt 60, boatswain chair 30 is fixed on a shape plate 10.
Again as shown in Figure 1, bedplate 40 be with lightning arrester 80 bottom the square base seat board 40 that matches, and by anchor bolt, lightning arrester 80 is removably fixed on bedplate 40, and this bedplate 40 with the horizontal segment of L-type boatswain chair 30 for symmetrical center line, weld together with it above the horizontal segment being flat on this L-type boatswain chair 30.Certainly, the size of bedplate 40, shape can adjust according to the concrete structure bottom lightning arrester.
L-type bolt is processed by the round steel of Φ 16, for by affixed for door shape plate with steel tower cross-arm angle section; Be drilled with 6 holes above door shape plate, in the middle of it, below be arcuate socket, facilitates door shape plate to run into steel tower ground wire cross-arm when tilting, is adjusted to and ground vertical by boatswain chair along the arcuate socket rotation on door shape plate, then penetrates connecting bolt and fixed by boatswain chair; Have two holes above boatswain chair, above it, a hole is circular hole, can wear bolt, and lower face is corresponding with arcuate socket, also penetrates with bolt; Horizontal segment below bedplate and boatswain chair is welded into one piece.
In addition, when the plumb line run-off the straight on the relative ground of angle steel of ground wire cross-arm 50, described door shape plate 10 first through hole 110 place can be close in the inner side of the vertical section 31 of L-type boatswain chair 30 and set up pad, tilt problem is solved again through bolt 60, make the relative ground of the angle steel of ground wire cross-arm 50 keep vertical, pad is that there is circular hole centre and thickness is about the round iron plate of 2mm.
In a word, surge arrester support of the present invention can adapt to the various towers of ultra-high-tension power transmission line, cross-arm due to steel tower is not level entirely, therefore, the door shape plate be fixed on steel tower cross-arm also may tilt certain angle, in order to ensure that lightning arrester becomes vertical state with ground, so, door shape plate arranges arcuate socket, boatswain chair is rotated to vertical state along this arcuate socket, thus ensure that the lightning arrester be fixed on boatswain chair bedplate is vertical state.
Claims (9)
1. one kind the universal stand (70) of controlled discharge lightning arrester (80) is installed for high-voltage transmission line towers, comprises a shape plate (10), U-bolt (20), L-type boatswain chair (30) and bedplate (40), it is characterized in that:
Described door shape plate (10) is close to overhead ground wire cross-arm (50) outer surface of described steel tower, and be removably fixed together by described U-bolt (20) and described cross-arm (50), and the back side of the vertical section (31) of described L-type boatswain chair (30) is close to described door shape plate (10) and is removably fixed together with it, described door shape plate (10) top is provided with the first manhole (110), bottom is provided with the arc-shaped through-hole (111) corresponding with this first manhole (110), the height two ends of this arc-shaped through-hole (111) respectively with described first manhole line, article two, between line shape at 45 ° ± angle of 2 °, thus described L-type boatswain chair (30) is able to described first manhole (110) for the center of circle rotates along described arc-shaped through-hole (111), affixed described bedplate (40) on the horizontal segment of described L-type boatswain chair (30), this bedplate (40) matches with the bottom of described lightning arrester (80), and described lightning arrester (80) is removably fixed on described bedplate (40).
2. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
Described door shape plate (10) comprises square plate (11), and this dull and stereotyped two ends vertical upwards forms two perpendicular walls (12,13) of equal length, and overhead ground wire cross-arm (50) outer surface of described steel tower is close to by this two perpendicular wall (12,13); At square plate (11) four angle places of described door shape plate (10), four mutually corresponding between two the second manholes (112) are set, accordingly, described U-bolt (20) comprises two, two through holes (112) of two corresponding described door shape plate (10) one end of bolt heads difference of each U-bolt (20), like this, described door shape plate (10) is namely removably fixed on the overhead ground wire cross-arm (50) of described steel tower by described two U-bolts (20).
3. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
The low side of described arc-shaped through-hole (111) is positioned at immediately below described first manhole (110), and this arc-shaped through-hole (111) is exactly rotate 45 ° ± 2 ° to its high-end rear formation from its low side.
4. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
The vertical section (31) of described L-type boatswain chair (30) is respectively equipped with three manhole (310) corresponding with described first manhole (110) and described arc-shaped through-hole (111) and the 4th manhole (311) up and down, and removably affixed by two bolts (60) and described door shape plate (10).
5. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
Described bedplate (40) is the square base seat board (40) matched with described lightning arrester (80) bottom, this bedplate (40), welds together with it above horizontal segment being flat on this L-type boatswain chair (30) for symmetrical center line with the horizontal segment of described L-type boatswain chair (30).
6. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
After overhead ground wire cross-arm (50) angle steel of described steel tower crossed over by described U-bolt (20), door shape plate (10) described in this is removably fixed on this cross-arm (50).
7. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 2, is characterized in that:
Described first manhole (110) is positioned on the line between described door shape plate (10) upper end two level second manhole (112); The low side of described arc-shaped through-hole (111) is positioned on the line between described door shape plate (10) lower end two level second manhole (112), between high-end each second manhole (112) in square plate (11) corner place being positioned at described door shape plate (10) of described arc-shaped through-hole (111).
8. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 5, is characterized in that:
Size, the shape of described bedplate (40) and described lightning arrester (80) base platform are identical, and are removably fixed on described bedplate (40) by described lightning arrester (80) by anchor bolt.
9. the universal stand (70) installing controlled discharge lightning arrester (80) for high-voltage transmission line towers according to claim 1, is characterized in that:
Between the vertical section (31) and upper first through hole (110) of described door shape plate (10) of described L-type boatswain chair (30), set up pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310176865.9A CN103474939B (en) | 2013-05-14 | 2013-05-14 | The universal stand of controlled discharge lightning arrester is installed for high-voltage transmission line towers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310176865.9A CN103474939B (en) | 2013-05-14 | 2013-05-14 | The universal stand of controlled discharge lightning arrester is installed for high-voltage transmission line towers |
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| CN103474939A CN103474939A (en) | 2013-12-25 |
| CN103474939B true CN103474939B (en) | 2016-01-06 |
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| CN103812070A (en) * | 2014-02-18 | 2014-05-21 | 昆山振宏电子机械有限公司 | Lightning arrester bracket |
| CN108072395B (en) * | 2017-11-15 | 2023-10-20 | 浙江华电器材检测研究所有限公司 | Universal clamp for fixing and monitoring device of power transmission tower |
| CN108075432A (en) * | 2018-01-10 | 2018-05-25 | 宁夏中科天际防雷检测有限公司 | The Transformer Substation Lightning Protection device that a kind of easy disassembly is safeguarded |
| CN109038371B (en) * | 2018-10-08 | 2024-02-02 | 国网江苏省电力有限公司检修分公司 | Tower obstacle crossing bridge for overhead transmission line wheel type inspection robot |
| CN115076529A (en) * | 2022-05-10 | 2022-09-20 | 中广核研究院有限公司 | Nuclear power plant liquid level switch antidetonation support |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681480A1 (en) * | 1991-09-13 | 1993-03-19 | Electricite De France | Component for fixing a surge (lightning) arrester to a line carrying electric power |
| CN2164602Y (en) * | 1993-04-28 | 1994-05-11 | 能源部武汉高压研究所 | Controllable electricity discharging lightning rod |
| CN201286000Y (en) * | 2008-09-25 | 2009-08-05 | 潍坊供电公司 | Support frame |
| KR20100128205A (en) * | 2009-05-27 | 2010-12-07 | 이형태 | Adjustable angle lightning rod |
| CN202178556U (en) * | 2011-08-19 | 2012-03-28 | 辽宁省电力有限公司鞍山供电公司 | Steel tower universal type mounting support for controllable lightning rod |
| CN203205818U (en) * | 2013-05-09 | 2013-09-18 | 张宁 | Universal type arrester mounting bracket |
| CN203260990U (en) * | 2013-05-14 | 2013-10-30 | 国家电网公司 | Universal support for installing controllable discharge arrester at high-tension transmission line iron tower |
| CN203761008U (en) * | 2014-04-17 | 2014-08-06 | 国家电网公司 | Installation base of lightning arrester |
| CN203761007U (en) * | 2014-02-14 | 2014-08-06 | 国家电网公司 | Lightning arrester installation bracket |
-
2013
- 2013-05-14 CN CN201310176865.9A patent/CN103474939B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681480A1 (en) * | 1991-09-13 | 1993-03-19 | Electricite De France | Component for fixing a surge (lightning) arrester to a line carrying electric power |
| CN2164602Y (en) * | 1993-04-28 | 1994-05-11 | 能源部武汉高压研究所 | Controllable electricity discharging lightning rod |
| CN201286000Y (en) * | 2008-09-25 | 2009-08-05 | 潍坊供电公司 | Support frame |
| KR20100128205A (en) * | 2009-05-27 | 2010-12-07 | 이형태 | Adjustable angle lightning rod |
| CN202178556U (en) * | 2011-08-19 | 2012-03-28 | 辽宁省电力有限公司鞍山供电公司 | Steel tower universal type mounting support for controllable lightning rod |
| CN203205818U (en) * | 2013-05-09 | 2013-09-18 | 张宁 | Universal type arrester mounting bracket |
| CN203260990U (en) * | 2013-05-14 | 2013-10-30 | 国家电网公司 | Universal support for installing controllable discharge arrester at high-tension transmission line iron tower |
| CN203761007U (en) * | 2014-02-14 | 2014-08-06 | 国家电网公司 | Lightning arrester installation bracket |
| CN203761008U (en) * | 2014-04-17 | 2014-08-06 | 国家电网公司 | Installation base of lightning arrester |
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Address after: 100031 No. 86 West Chang'an Avenue, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: MAINTENANCE BRANCH OF STATE GRID CHONGQING ELECTRIC POWER Co. Address before: 100031 No. 86 West Chang'an Avenue, Beijing Patentee before: State Grid Corporation of China Patentee before: CHONGQING ELECTRIC POWER CORPORATION MAINTENANCE BRANCH |