CN204809746U - Special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV - Google Patents
Special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV Download PDFInfo
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- CN204809746U CN204809746U CN201520440641.9U CN201520440641U CN204809746U CN 204809746 U CN204809746 U CN 204809746U CN 201520440641 U CN201520440641 U CN 201520440641U CN 204809746 U CN204809746 U CN 204809746U
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Abstract
The utility model relates to a special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV, it includes that extension ladder, intermediate lamella step on and descend extension ladder, going up extension ladder and going up the montant including two of being located both sides, many the last horizontal poles that are telescopic connection are connected to two lower extremes of going up the montant, and the horizontal pole both ends that are located bottom are connected through the both sides that one end was stepped on to link bolt and intermediate lamella respectively, are located to be equipped with the terraced insulated tape of receipts between horizontal pole and the middle footboard of the top, extension ladder connects the many sheer poles that are telescopic connection including two lower montants that are located both sides, the upper end of two lower montants down, the horizontal pole both ends that are located topmost are connected through the both sides that the other end was stepped on to link bolt and intermediate lamella respectively, are located also to be equipped with the terraced insulated tape of receipts between horizontal pole and the middle footboard bottom. Length can be adjusted to the multi -functional flexible hard ladder of this special use, and can regard as the insulating footboard of stereoplasm, can also the suitable adjustment length position of cross -over connection between bigeminy insulator chain, form the aversion, a platform of standing.
Description
Technical field
The utility model relates to live working tools, refers to the special flexible hard ladder of one ± 800kV UHVDC Transmission Lines strain tower particularly.
Background technology
At present, domestic ± 800kV extra high voltage direct current transmission line has just put into operation several years, and the development of relevant operation Work tool is all in the starting stage.Change on strain insulator-string insulator string in operation process at ± 800kV UHVDC Transmission Lines, because the horizontal range between bigeminy insulator string is comparatively large, operating personnel carry out being shifted on insulator string, erect-position all comparatively difficulty; Be correlated with in operation process at hotline maintenance strain insulator wire jumper, operating personnel enters wire jumper service area mainly through methods such as the hard ladder that insulate, rope ladders, directly climbing composite insulator string, but, the operation inconvenience on shaft tower of the hard ladder of insulation, cannot carry out length adjustment, versatility is not strong; Certain deficiency is there is in rope ladder in safe distance guarantee, operating flexibility etc.; Direct climbing easily causes composite insulator to damage, and affects circuit safe and stable operation.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art and provides one ± 800kV UHVDC Transmission Lines strain tower special flexible hard ladder, this special-purpose multifunctional hard ladder that stretches can adjust length, and can as the insulation footboard of hard, the suitable adjustment extension position between bigeminy insulator string can also be connected across, form displacement, erect-position platform.
The technical scheme realizing the employing of the utility model object is: one is applicable to the ± flexible hard ladder of 800kV UHVDC Transmission Lines strain tower special-purpose multifunctional, and this hard ladder comprises extension ladder, intermediate plate is stepped on and lower extension ladder;
Described upper extension ladder comprises the two upper montants being positioned at both sides, many cross tubes are connected between the lower end of described two upper montants, connect for flexible between described many cross tubes, the both sides that one end is stepped on respectively by link bolt and intermediate plate in the two ends being positioned at cross tube are bottom connected, and be provided with and receive terraced insulating tape between cross tube topmost and middle pedal;
Described lower extension ladder comprises the two lower montants being positioned at both sides, connects many sheer poles between the upper end of described two lower montants, connects between described many sheer poles for flexible; The both sides that the other end is stepped on respectively by link bolt and intermediate plate in the two ends being positioned at sheer pole are topmost connected, and be also provided with and receive terraced insulating tape between sheer pole bottom and middle pedal.
In technique scheme, the two ends of described cross tube are connected to the different hollow bushing in aperture, according to aperture from small to large, hollow bushing are corresponding in turn to socket, form stretching structure; The two ends of described sheer pole are also connected to the different hollow bushing in aperture, according to aperture from small to large, hollow bushing are corresponding in turn to socket, form stretching structure; Described cross tube and sheer pole are that epoxy resin fiber material is made.
Further, connected by ratchet deck between the hollow bushing of described socket.
In technique scheme, the top of described upper extension ladder is provided with angle steel holding clamp.
In technique scheme, the top of described upper extension ladder is provided with insulating hanger.
Further, described insulating hanger rear is connected with anti-electromagnetic induction insulating rod.
In technique scheme, between the upper end of described two upper montants and between the lower end of two lower montants, be all connected with the metal tube that appearance is surrounded by insulating bag glue-line, to form pedal.
In technique scheme, the sliding rail in face and be loaded on two slide blocks in described sliding rail, described two slide blocks is equipped with insulator steel cap jig respectively, described two slide blocks is also provided with limit switch.
The utility model has the following advantages:
1, the utility model can control the collapsing length of lower extension ladder and upper extension ladder, and with the distance between adapting to according to bigeminy insulator string, convenient working personnel are according to insulator string specifications and models, and the hard terraced length of dynamic conditioning, enters strain insulator wire jumper service area fast.
2, middle pedal easily by after lower extension ladder and the dismounting of upper extension ladder, can use as insulation footboard by the utility model.
3, the utility model can also regulate the distance between insulator steel cap jig, to be connected across by the utility model between bigeminy insulator string, to form displacement, erect-position platform, is convenient to the relevant charged work operations of carrying out on insulator string.
The special flexible hard terraced quality of the utility model ± 800kV UHVDC Transmission Lines strain tower is light, length adjustment can be carried out, highly versatile, and operating personnel carries out being shifted on insulator string, erect-position is convenient, there is the advantage of the hard ladder of insulation, rope ladder simultaneously, thus improve the operational security of operating personnel with reduction working strength.This special flexible hard terraced using method is simple, and reliability is high, for the live line working problem of ± 800kV UHVDC Transmission Lines strain tower provides a kind of solution reliably.
Accompanying drawing explanation
Fig. 1 be the utility model be applicable to ± 800kV UHVDC Transmission Lines strain tower special-purpose multifunctional stretches the vertical view of hard ladder.
Fig. 2 be the utility model be applicable to ± 800kV UHVDC Transmission Lines strain tower special-purpose multifunctional stretches the front view of hard ladder.
Fig. 3 is the structural representation of the utility model slide card.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model is applicable to ± and 800kV UHVDC Transmission Lines strain tower special-purpose multifunctional stretches, and hard ladder comprises lower extension ladder, intermediate plate steps on 4 and upper extension ladder, wherein,
The upper end (in figure right-hand member) that lower extension ladder comprises two lower montants, 1, the two lower montants 1 being positioned at both sides connects many sheer poles 2, connects between many sheer poles 2 for flexible; The both sides that 4 one end (figure left end) are stepped on respectively by link bolt 3 and intermediate plate in the two ends being arranged in (figure low order end) sheer pole are topmost connected.Be provided with between sheer pole bottom and middle pedal 4 and receive terraced insulating tape 11, after sheer pole 2 is all retracted, by the terraced insulating tape 11 of urgent receipts, thus fix whole sheer pole 2, prevent under gravity, sheer pole 2 launches, and is also beneficial to and tightens up lower extension ladder.
The lower end (in figure left end) that upper extension ladder comprises the two upper montants 6 of upper montant 6, two being positioned at both sides connects many cross tubes 7, connects between many cross tubes 7 for flexible; The both sides that 4 other ends (figure right-hand member) are stepped on respectively by link bolt 8 and intermediate plate in the two ends being arranged in (figure high order end) cross tube are bottom connected.Be provided with between cross tube topmost and middle pedal 4 and receive terraced insulating tape 12, by the terraced insulating tape 12 of urgent receipts, thus fix whole cross tube 2, prevent under gravity, sheer pole 2 launches, and is also beneficial to and tightens up extension ladder.
Be convenient to the utility model to be fixed on angle cross arm to use during the utility model, the top of upper extension ladder is provided with and can adapts to the multiple angle steel holding clamp 9 towards angle steel of sizes.
In order to realize adjusting length, flexible syndeton between above-mentioned many sheer poles 2 and between many cross tubes 7 is specially: the two ends of cross tube 2 are connected to the different hollow bushing in aperture, according to aperture from small to large, hollow bushing is socketed successively, forms Collapsible structure.Particularly, be socketed between the hollow bushing of socket by ratchet deck, deck can ensure that insulation cleat stanchion can regulate in angle among a small circle, and has one-way non-return effect.
In order to for mounting with wire jumper or insulator steel cap, extension ladder is avoided to produce flexural deformation when cantilever is long, the utility model is provided with insulating hanger on the top of upper extension ladder, and insulating hanger rear is also connected with anti-electromagnetic induction insulating rod, for suppressing electromagnetic induction.
For the ease of operating personnel's climbing, between the upper end of two upper montants, and between the lower end of two lower montants, be all connected with the metal tube 5 that appearance is surrounded by insulating bag glue-line, with constituting layer pedal, be convenient to operating personnel and climb this hard ladder.
In addition, in order to be connected across the appropriate location between bigeminy insulator string, form displacement, erect-position platform, be convenient to the relevant charged work operations of carrying out on insulator string, the bottom surface that the utility model also steps on 4 at intermediate plate is provided with slidably jig, as shown in Figure 3, slidably jig comprises and is located at intermediate plate and steps on the sliding rail 13 of 4 bottom surfaces and be loaded on interior two the slide block (not shown)s of sliding rail 13, two slide blocks are equipped with insulator steel cap jig 14 respectively, 15, two slide blocks are also provided with limit switch, and limit switch is used for the position of fixing slide block.
When carrying out the relevant charged work operations on insulator string, use above-mentionedly to be applicable to ± the stretch process of hard ladder of 800kV UHVDC Transmission Lines strain tower special-purpose multifunctional is as follows:
(1) before carrying out live line working, respectively many sheer poles 2 and Duo Gen cross tube 7 are contracted to minimum distance, then respectively by the terraced insulating tape of urgent receipts 11 and the terraced insulating tape 12 of receipts, many sheer poles 2 and Duo Gen cross tube 7 are fixed.
(2) in operation process, utilize motor-driven grinding mill to move on tower by flexible hard ladder, will be untied by operating personnel on tower and receive terraced insulating tape 11 and receive terraced insulating tape 12, and then many sheer poles 2 and Duo Gen cross tube 7 be launched respectively.
(3) make the top of upper extension ladder be fixed on angle cross arm by angle steel holding clamp 9, lower extension ladder is freely sagging, carries out the live line working work of being correlated with this hard ladder.
(4) after operation completes, by receiving terraced insulating tape, fast extension ladder can be shortened and reclaiming.
(5) when insulating ladder uses as insulation footboard by needs, can directly throw off link bolt 3,8, the lower extension ladder at two ends and upper extension ladder be disassembled, middle pedal 4 directly steps on use as plate.
(6) when needs are connected across between bigeminy insulator string, by regulating the distance of two slide blocks in sliding rail 13, then by insulator steel cap jig 14, the 15 steel caps blocking insulator 16, middle pedal 4 is made closely to be fixed in the middle of two insulator string, thus form displacement, erect-position platform, be convenient to the relevant charged work operations of carrying out on insulator string.
Claims (8)
1. the special flexible hard ladder of one kind ± 800kV UHVDC Transmission Lines strain tower, is characterized in that: comprise extension ladder, intermediate plate steps on and lower extension ladder;
Described upper extension ladder comprises the two upper montants being positioned at both sides, many cross tubes are connected between the lower end of described two upper montants, connect for flexible between described many cross tubes, the both sides that one end is stepped on respectively by link bolt and intermediate plate in the two ends being positioned at cross tube are bottom connected, and be provided with and receive terraced insulating tape between cross tube topmost and middle pedal;
Described lower extension ladder comprises the two lower montants being positioned at both sides, connects many sheer poles between the upper end of described two lower montants, connects between described many sheer poles for flexible; The both sides that the other end is stepped on respectively by link bolt and intermediate plate in the two ends being positioned at sheer pole are topmost connected, and be also provided with and receive terraced insulating tape between sheer pole bottom and middle pedal.
2. special flexible hard ladder according to claim 1, is characterized in that: the two ends of described cross tube are connected to the different hollow bushing in aperture, according to aperture from small to large, hollow bushing are corresponding in turn to socket, forms stretching structure; The two ends of described sheer pole are also connected to the different hollow bushing in aperture, according to aperture from small to large, hollow bushing are corresponding in turn to socket, form stretching structure; Described cross tube and sheer pole are that epoxy resin fiber material is made.
3. special flexible hard ladder according to claim 2, be is characterized in that: connected by ratchet deck between the hollow bushing of described socket.
4. special flexible hard ladder according to claim 1, is characterized in that: the top of described upper extension ladder is provided with angle steel holding clamp.
5. special flexible hard ladder according to claim 4, is characterized in that: the top of described upper extension ladder is provided with insulating hanger.
6. special flexible hard ladder according to claim 5, is characterized in that: described insulating hanger rear is connected with anti-electromagnetic induction insulating rod.
7. special flexible hard ladder according to claim 1, is characterized in that: between the upper end of described two upper montants and between the lower end of two lower montants, be all connected with the metal tube that appearance is surrounded by insulating bag glue-line, to form pedal.
8. special flexible hard ladder according to claim 1, it is characterized in that: the bottom surface that described intermediate plate is stepped on is provided with slide card, described slide card comprises to be located at described intermediate plate and to step on the sliding rail of bottom surface and be loaded on two slide blocks in described sliding rail, described two slide blocks are equipped with insulator steel cap jig respectively, described two slide blocks are also provided with limit switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440641.9U CN204809746U (en) | 2015-06-25 | 2015-06-25 | Special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440641.9U CN204809746U (en) | 2015-06-25 | 2015-06-25 | Special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV |
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| Publication Number | Publication Date |
|---|---|
| CN204809746U true CN204809746U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520440641.9U Active CN204809746U (en) | 2015-06-25 | 2015-06-25 | Special flexible hard ladder of special high voltage direct current circuit strain insulator tower of 800kV |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967047A (en) * | 2015-06-25 | 2015-10-07 | 中国南方电网有限责任公司超高压输电公司柳州局 | Telescoping hard ladder special for +/-800kV extra-high voltage direct current line tension tower and usage method therefor |
| CN109638715A (en) * | 2018-12-26 | 2019-04-16 | 国网福建省电力有限公司宁德供电公司 | The hard ladder of the mobile insulation of hot line maintenance and its working method |
-
2015
- 2015-06-25 CN CN201520440641.9U patent/CN204809746U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967047A (en) * | 2015-06-25 | 2015-10-07 | 中国南方电网有限责任公司超高压输电公司柳州局 | Telescoping hard ladder special for +/-800kV extra-high voltage direct current line tension tower and usage method therefor |
| CN109638715A (en) * | 2018-12-26 | 2019-04-16 | 国网福建省电力有限公司宁德供电公司 | The hard ladder of the mobile insulation of hot line maintenance and its working method |
| CN109638715B (en) * | 2018-12-26 | 2024-05-10 | 国网福建省电力有限公司宁德供电公司 | Movable insulating hard ladder for live working of power transmission line and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191008 Address after: No. 22, Customs Road, Liuzhou High-tech Zone, 545000 Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Bureau of EHV Power Transmission Co., China Southern Power Grid Address before: 545006 No. 20, Customs Road, Liuzhou, the Guangxi Zhuang Autonomous Region Co-patentee before: WUHAN KEDIAO ELECTRIC POWER TECHNOLOGY CO., LTD. Patentee before: Liuzhou Bureau of EHV Power Transmission Co., China Southern Power Grid |
|
| TR01 | Transfer of patent right |