CN202121251U - 220kV Li Xu line overhead earth wire overhauling plate ladder - Google Patents
220kV Li Xu line overhead earth wire overhauling plate ladder Download PDFInfo
- Publication number
- CN202121251U CN202121251U CN2011201442171U CN201120144217U CN202121251U CN 202121251 U CN202121251 U CN 202121251U CN 2011201442171 U CN2011201442171 U CN 2011201442171U CN 201120144217 U CN201120144217 U CN 201120144217U CN 202121251 U CN202121251 U CN 202121251U
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- Prior art keywords
- ladder
- plate ladder
- plate
- line
- earth wire
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- Expired - Lifetime
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- 239000011810 insulating material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The present utility model relates to a live-line overhauling overhead earth wire device, especially relates to a 220kV Li Xu line overhead earth wire overhauling plate ladder. By adopting the plate ladder, an overhead earth wire can be overhauled under the situation that the line is free of power failure, and the personnel and equipment safety is guaranteed. In the plate ladder, the two ends of the upper part of the plate ladder are respectively provided with pulleys, conducting wire troughs are respectively arranged on the two ends of the lower part of the plate ladder, and the lower end of the plate ladder is connected with a rope ladder. Compared with the prior art, when the 220kV Li Xu line is in normal operation, the overhead earth wire can be overhauled through the live-line work or the equipotential work, parts of overhead earth wire bearing loads can be transferred, and the personnel and equipment safety can be guaranteed. The reliability of power supply can be greatly raised, and the personal and equipment safety can be guaranteed. Moreover, as the pulleys are used to act as a mobile medium, the plate ladder is flexible and not restricted by fault points, material tools are easy to manufacture, the plate ladder is convenient for carrying, the investment is small, the safety is high, and the plate ladder can be widely popularized and applied.
Description
Technical field
The utility model relates to a kind of hotline maintenance overhead ground wire device, relates in particular to a kind of Li 220kV Xu line overhead ground wire access panel ladder.Be a kind ofly to guarantee that circuit does not have a power failure, and the plate ladder of maintenance overhead ground wire under the situation of assurance personnel and device security.
Background technology
At present; The service work of known transmission line overhead ground wire all should be carried out under power-off condition; The general packaged type common plate ladder that adopts, two pulleys are generally adopted on plate ladder top, can be free to slide on line; Job area is unrestricted, and personnel directly get into the plate ladder through rope ladder or from the shaft tower the overhead ground wire injury region is carried out repairing work.But; Since at present the user to power supply reliability require increasingly high; Difficulty has a power failure; And under the more situation of the disconnected number of share of stock of overhead ground wire because the limited as easy as rolling off a log appearance broken string accident of lifting capacity, cause casualties and the serious consequence of device damage, so the overhead ground wire service work exists certain difficulty always.
Summary of the invention
The utility model provides a kind of Li 220kV Xu line overhead ground wire access panel ladder to the problem that exists in the above-mentioned prior art.Purpose is can under charged situation, carry out the overhead ground wire upkeep operation in order to provide a kind of, and can significantly improve the reliability of power supply and a kind of Li 220kV Xu line overhead ground wire access panel ladder of fail safe.
The utility model solves the technical scheme that its technical problem adopted:
Li 220kV Xu line overhead ground wire access panel ladder comprises the plate ladder, and the both upper ends thereof terraced at plate is respectively equipped with pulley, and two ends, plate ladder bottom are respectively equipped with the lead draw-in groove, and the lower end of plate ladder is connected with rope ladder.
Described plate ladder is processed for insulating material.
Described pulley is provided with locking device.
Each section of ladder of described plate ladder is the round insulation bar structure.
Described lead draw-in groove is provided with three.
The utility model compared with prior art can carry out the overhead ground wire service work through live line working or equal potential working under Li 220kV Xu circuit normal operation, and can transfer portion overhead ground wire load-bearing load, assurance personnel and device security.Promptly the reliability of power supply can be improved widely, the person, device security can be guaranteed again.Owing to adopt pulley as move media, therefore have flexibly, do not receive the characteristics of fault point restriction, also have material tool make simple, easy to carry, invest little, advantages such as fail safe height, and can applying.
Description of drawings
Fig. 1 is that the utility model is implemented the status architecture sketch map.
Fig. 2 is the structural representation of facing of Li 220kV Xu line overhead ground wire access panel ladder.
Fig. 3 is the end view of Fig. 2.
Among the figure: pulley 1, plate ladder 2, lead draw-in groove 3, rope ladder 4, overhead ground wire 5, lead 6, shaft tower 7.
Embodiment
Below in conjunction with the specific embodiment and the accompanying drawing of the utility model, the utility model is described in detail.
Like Fig. 1-shown in Figure 3, the outward appearance of the utility model Li 220kV Xu line overhead ground wire access panel ladder is similar with common plate ladder structure, and plate ladder 2 is processed for insulating material, and each section of ladder of plate terraced 2 is the round insulation bar structure.The upper end of plate ladder 2 is provided with two pulleys 1; This pulley 1 is provided with locking device; Make the scope of activities of plate ladder unrestricted, can also the plate ladder be fixed through locking device, two ends, plate ladder bottom are respectively arranged with three lead draw-in grooves 3; This lead draw-in groove 3 can carry out extension position according to the distance between overhead ground wire and lead to be regulated, and working method is live line working or equal potential working.
During practical implementation; Described Li 220kV Xu of the utility model line overhead ground wire access panel ladder is positioned between the overhead ground wire 5 and lead 6 on the shaft tower 7; Plate ladder 2 upper ends hang on the overhead ground wire 5 through pulley 1, utilize the locking device on the pulley 1 that pulley 1 is fixed on the overhead ground wire 5; Block on lead 6 through lead draw-in groove 3 lower end; The lower end of plate ladder 2 is connected with rope ladder 4 orders again; The operating personnel through on the rope ladder 4 to plate ladder 2 parts, carry out overhead ground wire patch work, because the plate ladder is placed between overhead ground wire 5 and the lead 6; Can make overhead ground wire 5 shift gravity load to a certain extent through plate ladder 2 guiding lines 6; Thereby 6 pairs of overhead ground wires 5 of lead are played a supporting role, and the dielectric strength between guaranteeing, the staff only needs to climb to plate ladder 2 from rope ladder 4 and carries out the overhead wire upkeep operation.The part weight of human body and material can be transferred on the lead 6 under the more tight situation of overhead ground wire 5 disconnected number of share of stock orders; Thereby reduce the gravity load of overhead ground wire 5; Reduce overhead ground wire 5 and cause the probability of line-to-ground, short circuit tripping operation accident, thereby reached the purpose that has guaranteed personnel and device security when carrying out the overhead wire upkeep operation again charged because of broken string.
Claims (2)
1.220kV Li Xu line overhead ground wire access panel ladder, it comprises the plate ladder, it is characterized in that: the both upper ends thereof of plate ladder (2) is respectively equipped with pulley (1), and two ends, plate ladder bottom are respectively equipped with lead draw-in groove (3), and the lower end of plate ladder (2) is connected with rope ladder (4).
2. Li 220kV Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described plate ladder (2) is processed for insulating material.
3
.Li 220kV Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described pulley (1) is provided with locking device.
4
.Li 220kV Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: each section of ladder of described plate ladder (2) is the round insulation bar structure.
5
.Li 220kV Xu line overhead ground wire access panel ladder according to claim 1, it is characterized in that: described lead draw-in groove (3) is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201442171U CN202121251U (en) | 2011-05-09 | 2011-05-09 | 220kV Li Xu line overhead earth wire overhauling plate ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201442171U CN202121251U (en) | 2011-05-09 | 2011-05-09 | 220kV Li Xu line overhead earth wire overhauling plate ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121251U true CN202121251U (en) | 2012-01-18 |
Family
ID=45462288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201442171U Expired - Lifetime CN202121251U (en) | 2011-05-09 | 2011-05-09 | 220kV Li Xu line overhead earth wire overhauling plate ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202121251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290736A (en) * | 2011-05-09 | 2011-12-21 | 辽宁省电力有限公司沈阳供电公司 | Maintenance board ladder for 220KV overhead ground wire |
-
2011
- 2011-05-09 CN CN2011201442171U patent/CN202121251U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290736A (en) * | 2011-05-09 | 2011-12-21 | 辽宁省电力有限公司沈阳供电公司 | Maintenance board ladder for 220KV overhead ground wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121224 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121224 Address after: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee after: Liaoning Shenyang Electric Power Supply Co., Ltd. Patentee after: State Grid Corporation of China Address before: 110811 eight Heping Street, 94 Heping Street, Liaoning, Shenyang Patentee before: Liaoning Shenyang Electric Power Supply Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |
|
| CX01 | Expiry of patent term |