CN108512123B - Quick net sealing device for high-voltage transmission line - Google Patents
Quick net sealing device for high-voltage transmission line Download PDFInfo
- Publication number
- CN108512123B CN108512123B CN201810605265.2A CN201810605265A CN108512123B CN 108512123 B CN108512123 B CN 108512123B CN 201810605265 A CN201810605265 A CN 201810605265A CN 108512123 B CN108512123 B CN 108512123B
- Authority
- CN
- China
- Prior art keywords
- pulley
- rope
- seat
- wire
- transmission line
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 230000008520 organization Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 206010019345 Heat stroke Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004804 winding Methods 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention discloses a quick net sealer for a high-voltage transmission line, which comprises a first lead and a second lead, wherein a lightning conductor is arranged above the middle of the first lead and the second lead, a pulley device is hung on the first lead, a pulley rope device is hung on the second lead, the pulley rope device is connected with the pulley device through an insulating rope, and a net pulling rope is connected below the pulley device. By utilizing the device, the pulleys can be conveniently and rapidly hung on the lead, and a plurality of pulleys are connected together by the insulating rope, so that a net sealing device is formed, efficient and orderly organization work is achieved, casualties and financial loss are avoided to the greatest extent, normal operation of high-altitude operation is maintained, and good use effect is achieved.
Description
Technical Field
The invention relates to a high-voltage transmission line, in particular to a rapid net sealer for the high-voltage transmission line, and belongs to the technical field of transmission line equipment.
Background
With the rapid development of the age, the power resource has become an indispensable part of life of people, and the demand of people for the power resource is continuously increased, so that the original power transmission line can not meet the current demand. In order to meet the needs of the era, power enterprises have already begun to take various large measures such as adding high-voltage transmission lines. However, the increase of the high-voltage transmission line is an operation with extremely strict requirements and extremely high safety requirements, and when the lightning conductor above the high-voltage transmission line needs to be installed or replaced, the lightning conductor cannot be carelessly replaced.
With the strong development of the power grid, the high-voltage lines are more and more, the spanning of new lines is more and more complex, and the requirements on the safety and reliability of power supply are naturally higher and higher, wherein the timely installation, inspection and replacement of the lightning conductor are important. It is inevitable that under the lightning conductor, the traffic trunk, pavilion, railway, and crops are crossed, and the crossing problem is outstanding and important in the replacement of the lightning conductor of the high-voltage transmission line. If the lightning conductor is not protected by the screen sealing device in the process of replacing the lightning conductor on the high-voltage transmission line, the falling of the lightning conductor can greatly influence the reliability of power supply, and great loss is brought to the safety and economy of a user, so that immeasurable results are caused.
When a crossing line is arranged above a high-voltage transmission line, a traditional net sealing operation mode adopts steel strands as materials, two operators ride on the wires to build the wires, and after the construction is finished, the two operators take the same operation mode to retrieve the net sealing device. However, in this overhead operation process, two workers on the high-voltage transmission line have a great safety risk, and especially when the line is high, the operation difficulty is significantly increased, and the safety risk level is also more severe.
The operation mode is long in time consumption, and if a worker is uncomfortable or wrong due to sudden physical conditions, serious consequences which cannot be assumed can be caused; the consequences of inadvertent skidding or heatstroke due to weather causes are also inconceivable, and the rescue is difficult for the following people.
In addition, the operation technology content of the work and the physical quality or age requirements of the staff are extremely high, and many people cannot adequately meet the task. Even if operated by two skilled workers, the material cost and the working difficulty are not so pronounced. In addition, the steel strand wires are heavy, have high hardness, are difficult to recycle, have high transportation, setting and adjustment difficulties, and consume labor intensity of people naturally. Therefore, the operation mode using the conventional screen sealing device is poor in safety, progress and economical efficiency.
Disclosure of Invention
The invention aims to solve the technical problems that: the utility model provides a quick net sealing device for high tension transmission line, utilize the device, can be convenient, swift hang the wire with the pulley on, the insulating rope of winding on the reuse pulley rope device links a plurality of pulleys together, just constitutes a net sealing device, reaches high-efficient orderly organization work, furthest avoids casualties and financial loss, maintains the normal operating of high altitude construction, the effectual problem that has solved above-mentioned existence.
The technical scheme of the invention is as follows: a quick net sealing device for a high-voltage transmission line comprises a first lead and a second lead, wherein a lightning conductor is arranged above the middle of the first lead and the second lead, a pulley device is hung on the first lead, a pulley rope device is hung on the second lead, the pulley rope device is connected with the pulley device through an insulating rope, and a net pulling rope is connected below the pulley device.
The pulley rope device comprises a pulley seat I and a pulley rope seat, the pulley seat I is of a square frame structure, the square frame-shaped pulley rope seat is fixedly connected to the bottom end of the pulley seat I, the pulley shaft I is arranged on the upper portion of the pulley seat I, the pulley I is sleeved on the pulley shaft I, a rope disc device is arranged in the pulley rope seat, a through hole I is formed in the middle of the bottom end of the pulley seat I, a connecting rod I is arranged in the through hole I, the connecting rod I penetrates through the pulley rope seat and the rope disc device, two ends of the connecting rod I are fixed through nuts, a wire groove I is formed in the side edge of the lower portion of the pulley seat I, and a wire lock I is arranged at the position of the wire groove I.
The pulley device comprises a pulley seat II and a pulley II, the upper portion of the pulley seat II is provided with a pulley shaft II, the pulley II is sleeved on the pulley shaft II, a through hole II is formed in the middle of the bottom end of the pulley seat II, a connecting rod II is arranged in the through hole II, the bottom end of the connecting rod II is fixedly connected with a rope ring, a wire groove II is formed in the side edge of the lower portion of the pulley seat II, a wire lock II is arranged at the position of the wire groove II, and a net pulling rope is connected to the rope ring.
The pulley I is provided with a U-shaped wire groove III in the middle, the pulley I is hung on the wire II through the wire groove III, the pulley II is provided with a U-shaped wire groove IV in the middle, and the pulley II is hung on the wire I through the wire groove IV.
The rope reel device comprises an upper rope reel and a lower rope reel, a sleeve is fixedly connected between the upper rope reel and the lower rope reel, an insulating rope is wound on the sleeve, and the other end of the insulating rope is connected to the rope ring.
The bottom of the first wire lock is hinged to the bottom side edge of the first pulley seat through a first pin shaft, a U-shaped notch I is formed in the top side edge of the first wire lock, a first stud is arranged in the U-shaped notch I, one end of the first stud is fixed to the side edge of the first pulley seat, and a butterfly nut I is arranged on the outer side of the first stud.
The bottom of the second wire lock is hinged to the bottom side edge of the second pulley seat through a second pin shaft, a U-shaped notch II is formed in the top side edge of the second wire lock, a second stud is arranged in the U-shaped notch II, one end of the second stud is fixed to the side edge of the second pulley seat, and a second butterfly nut is arranged on the outer side of the second stud.
The top of the second connecting rod is provided with threads and is positioned on the second through hole through an upper nut and a lower nut.
The upper rope disc and the lower rope disc are of round flat plate structures, and a through hole through which the first connecting rod passes is formed in the middle of the upper rope disc and the lower rope disc.
The beneficial effects of the invention are as follows: compared with the prior art, the device has the advantages of simple structure, convenient installation and low price, has important significance for ensuring the safety of crossing construction of the high-voltage transmission line, greatly shortens the time for erecting an important crossing object crossing frame when the transmission line is replaced by the development and application of the achievement, is shorter than the traditional operation mode, is about 10 minutes in one group, has low labor intensity and lower personal risk of operators, is environment-friendly and can be reused, greatly improves the operation efficiency, can furthest shorten the time and the work efficiency of power failure overhaul of the line, and has better popularization and application values.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the pulley rope apparatus of the present invention;
FIG. 3 is a side view of the pulley rope apparatus of the present invention;
FIG. 4 is a schematic view of a pulley device according to the present invention;
fig. 5 is a side view of the pulley device of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings of the present specification.
Example 1: as shown in fig. 1-3, the quick net sealer for the high-voltage transmission line comprises a first lead 1 and a second lead 3, wherein a lightning conductor 2 is arranged above the middle of the first lead 1 and the second lead 3, a pulley device 5 is hung on the first lead 1, a pulley rope device 7 is hung on the second lead 3, the pulley rope device 7 is connected with the pulley device 5 through an insulating rope 4, and a net pulling rope 9 is connected below the pulley device 5. The pulley I77 can be hung on the lead II 3, the pulley II 57 is hung on the lead I1, the insulating rope 4 is wound on the sleeve 85 of the rope reel device, the insulating rope 4 is connected to the pulley device 5, and a plurality of groups of devices can form a large net, so that the lightning conductor 2 can be replaced, the lightning conductor 2 can be hung on the net after being replaced and falls down, and other circuits below the lightning conductor can not be influenced.
Further, the pulley rope device 7 comprises a pulley seat I78 and a pulley rope seat 71, the pulley seat I78 is of a square frame structure, the square frame pulley rope seat 71 is fixedly connected to the bottom end of the pulley seat I78, a pulley shaft I79 is arranged on the upper portion of the pulley seat I78, the pulley I77 is sleeved on the pulley shaft I79, a rope disc device is arranged in the pulley rope seat 71, a through hole I72 is arranged in the middle of the bottom end of the pulley seat I78, a connecting rod I81 is arranged in the through hole I72, the connecting rod I81 penetrates through the pulley rope seat 71 and the rope disc device, two ends of the connecting rod I81 are fixed through nuts, a wire groove I82 is formed in the side edge of the lower portion of the pulley seat I78, and a wire lock I74 is arranged at the position of the wire groove I82. By opening the first wire lock 74, the pulley I77 can be hung on the second wire 3, the insulating rope 4 is wound on the sleeve 85 of the rope reel device, then the insulating rope 4 is connected to the pulley device 5, and a plurality of groups of devices can form a large net, so that the lightning conductor 2 can be replaced, the lightning conductor 2 can be hung on the net after being replaced, and other circuits below can not be influenced.
Further, as shown in fig. 4 to 5, the pulley device 5 includes a pulley seat two 58 and a pulley two 57, the upper portion of the pulley seat two 58 is provided with a pulley shaft two 59, the pulley two 57 is sleeved on the pulley shaft two 59, a through hole two 52 is provided in the middle of the bottom end of the pulley seat two 58, a connecting rod two 61 is provided in the through hole two 52, the bottom end of the connecting rod two 61 is fixedly connected with a rope ring 51, a wire groove two 62 is provided on the side edge of the lower portion of the pulley seat two 58, a wire lock two 54 is provided at the position of the wire groove two 62, and the rope ring 51 is connected with a net pulling rope 9.
Further, a U-shaped wire groove III 83 is formed in the middle of the pulley I77, the pulley I77 is hung on the wire II 3 through the wire groove III 83, a U-shaped wire groove IV 63 is formed in the middle of the pulley II 57, and the pulley II 57 is hung on the wire I1 through the wire groove IV 63. The pulley I77 and the pulley II 57 can be well positioned, and the pulley II 57 can be driven to move on the lead I1 by pulling the net rope 9, so that the device can be moved to reach the required position.
Further, the rope reel device comprises an upper rope reel 84 and a lower rope reel 86, a sleeve 85 is fixedly connected between the upper rope reel 84 and the lower rope reel 86, an insulating rope 4 is wound on the sleeve 85, and the other end of the insulating rope 4 is connected to the rope ring 51. The sleeve 85 can be wound with the insulating rope 4, and the rope disc can rotate on the first connecting rod 81, so that the insulating rope 4 can be conveniently wound and unwound.
Further, the bottom end of the first wire lock 74 is hinged to the bottom end side edge of the first pulley seat 78 through a first pin shaft 73, a U-shaped notch I80 is formed in the top end side edge of the first wire lock 74, a first stud 75 is arranged in the U-shaped notch I80, one end of the first stud 75 is fixed to the side edge of the first pulley seat 78, and a first butterfly nut 76 is arranged on the outer side of the first stud 75. After the pulley I77 is hung on the wire II 3, the wire lock I74 is locked on the pulley seat I78 through the butterfly nut I76, so that the pulley I77 can be prevented from slipping off the wire II 3, and the safety is improved.
Further, the bottom end of the second wire lock 54 is hinged to the bottom end side edge of the second pulley seat 58 through a second pin shaft 53, a second U-shaped notch 60 is formed in the top end side edge of the second wire lock 54, a second stud 55 is arranged in the second U-shaped notch 60, one end of the second stud 55 is fixed to the side edge of the second pulley seat 58, and a second butterfly nut 56 is arranged on the outer side of the second stud 55. After the pulley II 57 is hung on the first lead 1, the lead lock II 54 is locked on the pulley seat II 58 through the butterfly nut II 56, so that the pulley II 57 can be prevented from slipping off the first lead 1, and the safety is improved.
Further, the top end of the second connecting rod 61 is provided with threads, and is positioned on the second through hole 52 through upper and lower nuts. The second connecting rod 61 can rotate in the second through hole 52, thereby facilitating the operation.
Further, the upper rope reel 84 and the lower rope reel 86 are both in a circular flat plate structure, and a through hole through which the first connecting rod 81 passes is formed in the middle of the upper rope reel 84 and the lower rope reel 86. The rope reel can rotate on the first connecting rod 81, and the insulating rope 4 is convenient to retract and release.
The present invention is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a quick net sealer for high tension transmission line, it includes wire one (1) and wire two (3), has lightning conductor (2) in wire one (1) and wire two (3) intermediate top, its characterized in that: a pulley device (5) is hung on the first lead (1), a pulley rope device (7) is hung on the second lead (3), the pulley rope device (7) is connected with the pulley device (5) through an insulating rope (4), and a net pulling rope (9) is connected below the pulley device (5);
the pulley rope device (7) comprises a pulley seat I (78) and a pulley rope seat (71), the pulley seat I (78) is of a square frame structure, the square frame-shaped pulley rope seat (71) is fixedly connected to the bottom end of the pulley seat I (78), the pulley shaft I (79) is arranged at the upper part of the pulley seat I (78), the pulley I (77) is sleeved on the pulley shaft I (79), a rope disc device is arranged in the pulley rope seat (71), a through hole I (72) is arranged in the middle of the bottom end of the pulley seat I (78), a connecting rod I (81) is arranged in the through hole I (72), the connecting rod I (81) penetrates through the pulley rope seat (71) and the rope disc device, two ends of the connecting rod I (81) are fixed through nuts, a wire groove I (82) is arranged on the side edge of the lower part of the pulley seat I (78), and a wire lock I (74) is arranged at the position of the wire groove I (82);
the rope reel device comprises an upper rope reel (84) and a lower rope reel (86), a sleeve (85) is fixedly connected between the upper rope reel (84) and the lower rope reel (86), an insulating rope (4) is wound on the sleeve (85), and the other end of the insulating rope (4) is connected to the rope ring (51);
the insulating rope wound on the pulley rope device (7) connects a plurality of pulleys together to form a net sealing device;
the pulley device (5) comprises a pulley seat II (58) and a pulley II (57), wherein a pulley shaft II (59) is arranged on the upper portion of the pulley seat II (58), the pulley II (57) is sleeved on the pulley shaft II (59), a through hole II (52) is formed in the middle of the bottom end of the pulley seat II (58), a connecting rod II (61) is arranged in the through hole II (52), a rope ring (51) is fixedly connected to the bottom end of the connecting rod II (61), a wire groove II (62) is formed in the side edge of the lower portion of the pulley seat II (58), a wire lock II (54) is arranged at the position of the wire groove II (62), and a net pulling rope (9) is connected to the rope ring (51).
2. A quick net sealer for a high voltage transmission line according to claim 1, wherein: the middle of the pulley I (77) is provided with a U-shaped wire groove III (83), the pulley I (77) is hung on the wire II (3) through the wire groove III (83), the middle of the pulley II (57) is provided with a U-shaped wire groove IV (63), and the pulley II (57) is hung on the wire I (1) through the wire groove IV (63).
3. A quick net sealer for a high voltage transmission line according to claim 1, wherein: the bottom of the wire lock I (74) is hinged to the bottom side edge of the pulley seat I (78) through a pin shaft I (73), a U-shaped notch I (80) is formed in the top side edge of the wire lock I (74), a stud I (75) is arranged in the U-shaped notch I (80), one end of the stud I (75) is fixed to the side edge of the pulley seat I (78), and a butterfly nut I (76) is arranged on the outer side of the stud I (75).
4. A quick net sealer for a high voltage transmission line according to claim 1, wherein: the bottom of wire lock two (54) articulates on the bottom side edge of pulley seat two (58) through round pin axle two (53), and the top side edge of wire lock two (54) is equipped with U type notch two (60), be equipped with double-screw bolt two (55) in U type notch two (60), double-screw bolt two (55) one end is fixed on the side of pulley seat two (58), and the outside of double-screw bolt two (55) is equipped with butterfly nut two (56).
5. A quick net sealer for a high voltage transmission line according to claim 1, wherein: the top end of the second connecting rod (61) is provided with threads and is positioned on the second through hole (52) through an upper nut and a lower nut.
6. A quick net sealer for a high voltage transmission line according to claim 1, wherein: the upper rope reel (84) and the lower rope reel (86) are of round flat plate structures, and through holes through which the first connecting rod (81) passes are formed in the middle of the upper rope reel (84) and the lower rope reel (86).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605265.2A CN108512123B (en) | 2018-06-13 | 2018-06-13 | Quick net sealing device for high-voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810605265.2A CN108512123B (en) | 2018-06-13 | 2018-06-13 | Quick net sealing device for high-voltage transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108512123A CN108512123A (en) | 2018-09-07 |
| CN108512123B true CN108512123B (en) | 2024-02-02 |
Family
ID=63403202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810605265.2A Active CN108512123B (en) | 2018-06-13 | 2018-06-13 | Quick net sealing device for high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108512123B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190557A (en) * | 2019-07-04 | 2019-08-30 | 广西送变电建设有限责任公司 | A kind of block device and its block coaster |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201252365Y (en) * | 2008-09-11 | 2009-06-03 | 山西省电力公司送变电工程公司 | Construction charged crossover device of ultra-high and special-high voltage transmission line |
| CN102324712A (en) * | 2011-09-19 | 2012-01-18 | 湖北省输变电工程公司 | Method for electrified spanning construction of high-voltage power transmission and transformation line |
| CN204376311U (en) * | 2015-01-16 | 2015-06-03 | 国家电网公司 | The heavy electric power cable high-altitude of lifting formula is handed over across unfolding device |
| CN105186378A (en) * | 2015-10-19 | 2015-12-23 | 江苏省电力公司南京供电公司 | Power transmission line channel crossing protection mechanism |
| CN105207119A (en) * | 2015-09-12 | 2015-12-30 | 国网辽宁省电力有限公司锦州供电公司 | Electrified span construction method for high-voltage wires and protective device of construction |
| CN105429055A (en) * | 2015-12-30 | 2016-03-23 | 国家电网公司 | Tackle for net weaving in high-voltage power transmission wire construction |
| CN208445198U (en) * | 2018-06-13 | 2019-01-29 | 贵州电网有限责任公司 | A kind of quick close-up device for ultra-high-tension power transmission line |
-
2018
- 2018-06-13 CN CN201810605265.2A patent/CN108512123B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201252365Y (en) * | 2008-09-11 | 2009-06-03 | 山西省电力公司送变电工程公司 | Construction charged crossover device of ultra-high and special-high voltage transmission line |
| CN102324712A (en) * | 2011-09-19 | 2012-01-18 | 湖北省输变电工程公司 | Method for electrified spanning construction of high-voltage power transmission and transformation line |
| CN204376311U (en) * | 2015-01-16 | 2015-06-03 | 国家电网公司 | The heavy electric power cable high-altitude of lifting formula is handed over across unfolding device |
| CN105207119A (en) * | 2015-09-12 | 2015-12-30 | 国网辽宁省电力有限公司锦州供电公司 | Electrified span construction method for high-voltage wires and protective device of construction |
| CN105186378A (en) * | 2015-10-19 | 2015-12-23 | 江苏省电力公司南京供电公司 | Power transmission line channel crossing protection mechanism |
| CN105429055A (en) * | 2015-12-30 | 2016-03-23 | 国家电网公司 | Tackle for net weaving in high-voltage power transmission wire construction |
| CN208445198U (en) * | 2018-06-13 | 2019-01-29 | 贵州电网有限责任公司 | A kind of quick close-up device for ultra-high-tension power transmission line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108512123A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108512123B (en) | Quick net sealing device for high-voltage transmission line | |
| CN202997425U (en) | Hoisting device capable of replacing suspension type insulator chain under electrified state | |
| CN117039721B (en) | Electrified overhauling device | |
| CN112271632B (en) | Standing type high-voltage cable operation device | |
| CN101692548A (en) | Tool for live replacing of hanging bottle string of drainage wire | |
| CN110661212A (en) | Special-shaped parallel-groove lap joint device capable of working in hot-line mode and operation method thereof | |
| CN208445198U (en) | A kind of quick close-up device for ultra-high-tension power transmission line | |
| CN206600525U (en) | A kind of hanging tensioning apparatus that can quick and portably adjust | |
| CN202846443U (en) | Electrified overhauling wrench | |
| CN214141304U (en) | Hoisting mechanism for aluminum pipe cleaning line | |
| CN201285999Y (en) | Soft ladder for high voltage line maintenance | |
| CN203553744U (en) | An ultra extra high voltage AC-DC overhead transmission line ground wire optical cable armour clamp replacing apparatus | |
| CN211456516U (en) | Electrified wire feeding and discharging device of high-voltage overhead bare conductor insulation rubber coating robot | |
| CN210669312U (en) | Special-shaped parallel groove lap joint device capable of working in hot-line mode | |
| CN210829053U (en) | Transformer substation overhauls device | |
| CN206471748U (en) | Universal 500kV straight lines wineglass tower line maintenance cross-arm hanging point device | |
| CN210074434U (en) | Safety protection device for transformer substation | |
| CN203438182U (en) | Chain tensioning tool | |
| CN208445199U (en) | A kind of pulley for ultra-high-tension power transmission line quick close-up device | |
| CN207098443U (en) | A kind of helicopter live-line maintenance operation hanging basket | |
| CN208445246U (en) | A kind of pulley rope device for ultra-high-tension power transmission line quick close-up device | |
| CN208835588U (en) | A kind of bottle-holding rack fixture | |
| CN203423430U (en) | Insulator maintenance device | |
| CN101949117A (en) | Safety insulating net structure of highway | |
| CN106744303B (en) | A kind of high-voltage power capacitor hanging apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |