CN113581996A - A lifting device for installation of transformer substation's V type insulator - Google Patents
A lifting device for installation of transformer substation's V type insulator Download PDFInfo
- Publication number
- CN113581996A CN113581996A CN202110901974.7A CN202110901974A CN113581996A CN 113581996 A CN113581996 A CN 113581996A CN 202110901974 A CN202110901974 A CN 202110901974A CN 113581996 A CN113581996 A CN 113581996A
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- rod
- shaped
- adjusting screw
- main rod
- insulator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
- Insulators (AREA)
Abstract
The invention provides a hoisting tool for installing a V-shaped insulator of a transformer substation, which comprises: a main rod fixing part is arranged at the lower side of the middle position of the bearing main rod; the upper side of the middle position of the lower supporting rod is provided with a supporting rod fixing part; the connecting piece is used for fixedly connecting the force-bearing main rod and the lower supporting rod, one end of the connecting piece is connected with the main rod fixing part, and the second end of the connecting piece is fixed with the main rod fixing part; a first adjusting screw hole is formed in a rod body of the force-bearing main rod, and a first upper U-shaped hanging ring, a first lower U-shaped hanging ring, a second upper U-shaped hanging ring and a second lower U-shaped hanging ring are arranged on two sides of the force-bearing main rod; and a second adjusting screw hole is formed in the rod body of the lower supporting rod, and insulator supporting pieces are arranged at two ends of the lower supporting rod. The invention can solve the problem of hoisting work in the installation and replacement process of the V-shaped insulator string of the ultra-high voltage large-scale transformer substation, has the advantages of time saving and labor saving, and provides guarantee for technicians to accurately and efficiently complete the installation and replacement work of the V-shaped insulator string.
Description
Technical Field
The invention relates to the technical field of transformer substation installation, in particular to a hoisting tool for transformer substation V-shaped insulator installation, which is suitable for assisting hoisting work in the installation process of a large ultra-high voltage transformer substation V-shaped insulator string.
Background
The ultra-high voltage is the most advanced power transmission technology in the world at present, has the comprehensive advantages of long distance, large capacity, low loss and less occupied area, can be used for configuring energy sources more safely, more efficiently and more environmentally, is an important carrier for realizing intensive development of energy resources, promoting the development of clean energy and effectively solving the haze problem, and is a necessary way for changing the energy development mode, ensuring the energy safety and serving the development of the economic society. In the actual engineering operation, the 500kV alternating current field bus of the engineering adopts a mode of combining a tension resistant bus and an I-shaped jumper wire, and the 500kV alternating current field has 32-span buses in total. Strain insulator string 204 string (30 × (XSP-210)); the V-shaped insulator string 66 sets (2X 33(XSP1-100)) are counted into 132 strings. 10476 insulators are calculated by calculating 204 × 30+132 × 33.
When a suspension insulator string in a transformer substation is hoisted, the root of an umbrella skirt shaft column of an insulator bottle is wrapped with cotton cloth in the prior art, and hoisting operation is performed after the insulator bottle umbrella skirt shaft column is firmly bound by a steel wire rope; the electric winching is matched with the steel wire rope and the U-shaped ring to hoist, so that the insulator sheet is easily damaged in the construction process.
The current situation is to the hoist and mount work in the installation of large-scale transformer substation V type insulator chain, often need install around electrified equipment, and the operation in-process often faces hoist and mount inconvenience, and safe distance is not enough, and the operation personnel receive the aerial work, close on electrified influence, can't accomplish work fast, high-efficiently.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention provides a hoisting tool for mounting a V-shaped insulator of a transformer substation. The invention can adapt to the hoisting work in the installation process of the V-shaped insulator string of the ultra-high voltage large-scale transformer substation, and can realize more accurate operation by the characteristics of self strength, bearing capacity, operation flexibility, convenience for carrying and transportation and convenience for quick assembly, thereby liberating the manpower and improving the working efficiency.
The technical scheme of the invention is as follows:
a lifting device for installation of a V-shaped insulator of a transformer substation comprises:
the lower side of the middle position of the bearing main rod is provided with a main rod fixing part;
the upper side of the middle position of the lower support rod is provided with a support rod fixing part;
the connecting piece is used for fixedly connecting the force-bearing main rod and the lower supporting rod, one end of the connecting piece is connected with the main rod fixing part, and the second end of the connecting piece is fixed with the main rod fixing part;
a first adjusting screw hole is formed in a rod body of the force-bearing main rod, and a first upper U-shaped hanging ring, a first lower U-shaped hanging ring, a second upper U-shaped hanging ring and a second lower U-shaped hanging ring are arranged on two sides of the force-bearing main rod; the first upper U-shaped lifting ring and the second upper U-shaped lifting ring are fixed above the force-bearing main rod through a first fixing bolt penetrating through a first adjusting screw hole; the first lower U-shaped lifting ring and the second lower U-shaped lifting ring are fixed below the force-bearing main rod through a second fixing bolt penetrating through the first adjusting screw hole;
set up the second on the body of rod of lower part bracing piece and adjust the screw, the both ends of lower part bracing piece set up insulator support piece, insulator support piece includes support piece connecting portion and supporting leg, the first end setting of support piece connecting portion passes the second through third fixing bolt and adjusts the screw fixedly in lower part bracing piece inside, the supporting leg sets up the second end at bracing piece connecting portion.
According to a further technical scheme, a first telescopic rod and a second telescopic rod are arranged at two ends of the force-bearing main rod, third adjusting screw holes are formed in the first telescopic rod and the second telescopic rod, and the first lower U-shaped hanging ring and the second lower U-shaped hanging ring are fixed below the first telescopic rod and the second telescopic rod through second fixing bolts penetrating through the third adjusting screw holes.
The invention adopts the further technical scheme that the force-bearing main rod is welded with the main rod fixing part, and the lower support rod is welded with the support rod fixing part.
The further technical scheme of the invention is that the first adjusting screw holes are two screw holes which are arranged on two sides of the force-bearing main rod and symmetrically arranged along the central axis of the force-bearing main rod, and the second adjusting screw holes are two screw holes which are arranged on two sides of the lower support rod and symmetrically arranged along the central axis of the lower support rod.
According to a further technical scheme of the invention, the third adjusting screw holes are two screw holes which are arranged on two sides of the telescopic rod and symmetrically arranged along the central axis of the telescopic rod, and the first adjusting screw holes and the third adjusting screw holes are distributed at the same interval.
Furthermore, the first adjusting screw hole, the second adjusting screw hole and the third adjusting screw hole are all provided with multiple groups.
Furthermore, the bearing main rod, the lower support rod, the first telescopic rod and the second telescopic rod are made of seamless steel tube materials.
Further, the supporting legs are arc-shaped supporting pieces made of rubber materials.
Further, the connecting piece is of a chain structure.
The invention has the beneficial effects that:
1. the hoisting tool provided by the invention adopts a high-quality steel structure, and has the characteristics of high structural strength, strong bearing capacity, operational flexibility, convenience in carrying and transportation and convenience in rapid assembly;
2. the main body is a seamless steel pipe, accurate hoisting operation is facilitated by arranging a first adjusting screw hole, a second adjusting screw hole and a third adjusting screw hole, and binding, insulator fixing and hoisting installation functions can be smoothly completed;
3. the first adjusting screw hole, the second adjusting screw hole and the third adjusting screw hole are designed, so that transverse quick adjustment is facilitated, and the offset of the insulator string in the hoisting process is reduced;
4. the lower supporting rods are connected by using chains, so that the torsion in the hoisting process is relieved;
5. the supporting legs in the insulator supporting piece are designed by rubber supporting legs, so that the insulator is effectively protected from being damaged;
6. the first upper U-shaped hanging ring, the first lower U-shaped hanging ring, the second upper U-shaped hanging ring and the second lower U-shaped hanging ring on the force bearing main rod are convenient to hoist quickly, can be adjusted quickly, and saves the arrangement time of work preparation;
7. the bearing main rod and the main rod form a double-layer rod design by arranging the expansion joint, the bearing is reliable and stable, and the swing amplitude is reduced;
8. the invention can solve the problem of hoisting work in the process of installing and replacing the V-shaped insulator string of the ultra-high voltage large-scale transformer substation, has the advantages of time and labor saving, and provides guarantee for technicians to accurately and efficiently complete the installation and replacement work of the V-shaped insulator string.
Drawings
Fig. 1 is a structural diagram of a hoisting tool for installing a V-shaped insulator of a transformer substation according to the present invention;
fig. 2 is a front view of a hoisting tool for installing a V-shaped insulator of a transformer substation according to the present invention;
FIG. 3 is a schematic view of the installation of the lifting tool of the present invention;
shown in the figure:
1-force bearing main rod, 2-lower supporting rod, 3-connecting piece, 4-insulator supporting piece, 5-first telescopic rod, 6-second telescopic rod,
11-a main rod fixing part, 12-a first adjusting screw hole, 13-a first upper U-shaped hanging ring, 14-a first lower U-shaped hanging ring, 15-a second upper U-shaped hanging ring and 16-a second lower U-shaped hanging ring; 17-a first fixing bolt, 18-a second fixing bolt;
21-a support rod fixing part, 22-a second adjusting screw hole and 23-a third fixing bolt;
41-support piece connecting part, 42-support leg,
51-third adjustment screw.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a structural diagram of a lifting tool for mounting a V-shaped insulator of a substation according to the present invention; fig. 2 is a front view of a hoisting tool for installing a V-shaped insulator of a transformer substation according to the present invention; FIG. 3 is a schematic view of the installation of the lifting tool of the present invention;
as shown in fig. 1 to 3, a lifting tool for installation of a V-shaped insulator of a substation comprises:
a main rod fixing part 11 is arranged at the lower side of the middle position of the bearing main rod 1; the force bearing main rod plays a role of fixing and supporting and is used for being fixedly connected with hoisting equipment and a V-shaped insulator string;
a support rod fixing part 21 is arranged on the upper side of the middle position of the lower support rod 2; the V-shaped insulator string supporting device is used for supporting the V-shaped insulator string from the inner side and preventing the V-shaped insulator string from being bent, twisted and broken in the hoisting process;
the connecting piece 3 is used for fixedly connecting the force-bearing main rod 1 and the lower support rod 2, one end of the connecting piece 3 is connected with the main rod fixing part 11, and the second end of the connecting piece 3 is fixed with the main rod fixing part 21; in the embodiment of the invention, the connecting piece can select a rope, a pull rod, a steel wire rope, a chain and the like, is mainly used for realizing the connection and the support of the bearing main rod and the lower supporting rod, preferably, the connecting piece adopts a chain structure, when the V-shaped insulator string is twisted, the lower supporting rod drives the chain to be twisted, the rotation of the chain does not influence the support of the bearing main rod, and the hoisting stability is improved.
A first adjusting screw hole 12 is arranged on a rod body of the force-bearing main rod 1, and a first upper U-shaped hanging ring 13, a first lower U-shaped hanging ring 14, a second upper U-shaped hanging ring 15 and a second lower U-shaped hanging ring 16 are arranged on two sides of the force-bearing main rod 1; the first upper U-shaped hanging ring 13 and the second upper U-shaped hanging ring 15 are fixed above the force-bearing main rod 1 through a first fixing bolt 17 penetrating through a first adjusting screw hole 12; the first lower U-shaped lifting ring 14 and the second lower U-shaped lifting ring 16 are fixed below the force-bearing main rod 1 through a second fixing bolt 18 passing through the first adjusting screw hole 12; the first adjusting screw hole is formed in the force bearing main rod, the fixing installation point can be adjusted according to the size and the quality of the hoisting equipment and the V-shaped insulator string, the hoisting is facilitated, the first upper U-shaped hanging ring and the second lower U-shaped hanging ring are fixed through the first fixing bolt, the first lower U-shaped hanging ring and the second lower U-shaped hanging ring are fixed through the second fixing bolt, and the first upper U-shaped hanging ring and the second lower U-shaped hanging ring are fixed through bolts and nuts and are convenient to install and disassemble;
a second adjusting screw hole 22 is formed in a rod body of the lower support rod 2, insulator support members 4 are arranged at two ends of the lower support rod 2, each insulator support member 4 comprises a support member connecting portion 41 and a support leg 42, a first end of each support member connecting portion 41 is arranged inside the lower support rod 2 and fixed through the second adjusting screw hole 22 through a third fixing bolt 23, and the support leg 42 is arranged at a second end of each support rod connecting portion 41; the second is adjusted the screw and is used for fixing insulator support piece, and insulator support piece connecting portion accessible and the horizontal length of the mounted position regulation bracing piece connecting portion of second regulation screw of insulator support piece make things convenient for the selection to V type insulator chain support position.
The supporting leg supports V type insulator chain, and wherein the supporting leg 42 is the arc support piece of rubber materials preparation, and the supporting leg is the arc structure, can paste tightly with V type insulator chain, prevents to take place to slide with V type insulator chain, and the supporting leg adopts the rubber materials preparation, can prevent to produce wearing and tearing to V type insulator chain, protects V type insulator chain.
In the embodiment of the invention, the two ends of the force-bearing main rod 1 are provided with the first telescopic rod 5 and the second telescopic rod 6, the first telescopic rod and the second telescopic rod can increase the transverse length of the force-bearing main rod, and are suitable for hoisting different V-shaped insulator strings, meanwhile, the first telescopic rod, the second telescopic rod and the force-bearing main rod form a double-layer rod structure, so that the hoisting reliability of the force-bearing main rod is improved, and bending or deviation is prevented, the first telescopic rod 5 and the second telescopic rod 6 are provided with the third adjusting screw hole 51, and the first lower U-shaped hanging ring 14 and the second lower U-shaped hanging ring 16 are fixed below the first telescopic rod 5 and the second telescopic rod 6 through the second fixing bolt 18 penetrating through the third adjusting screw hole 51.
In the embodiment of the invention, the force-bearing main rod 1 is welded with the main rod fixing part 11, the lower support rod 2 is welded with the support rod fixing part 21, and the connection is realized in a welding mode, so that the connection reliability is improved.
In the embodiment of the present invention, the first adjusting screw holes 12 are two screw holes disposed on two sides of the force-bearing main rod 1 and symmetrically disposed along the central axis of the force-bearing main rod 1, and the second adjusting screw holes 22 are two screw holes disposed on two sides of the lower support rod 2 and symmetrically disposed along the central axis of the lower support rod 2. The third adjusting screw holes 51 are two screw holes which are arranged at two sides of the first telescopic rod 5 and symmetrically arranged along the central axis of the first telescopic rod 5, and the first adjusting screw holes 12 and the third adjusting screw holes 51 are distributed at the same interval.
In order to be suitable for V-shaped insulator strings of different models and sizes, the first adjusting screw hole 12, the second adjusting screw hole 22 and the third adjusting screw hole 51 are all provided with multiple groups, so that the installation lengths of the bearing main rod and the lower supporting rod are convenient to adjust.
The hoisting tool for mounting the V-shaped insulator of the transformer substation comprises a force-bearing main rod, a lower supporting rod, a chain, an upper U-shaped ring, a lower U-shaped ring and an insulator supporting piece, wherein the force-bearing main rod, the lower supporting rod, a first telescopic rod and a second telescopic rod are made of seamless steel pipe materials and are divided into a front section and a rear section, the force-bearing main rod and the lower supporting rod are connected through the chain, the insulator supporting piece is arranged at the end part of the force-bearing main rod, the length can be transversely adjusted, the force-bearing main rod is provided with 4 hoisting U-shaped rings, the first upper U-shaped hoisting ring and the second upper U-shaped hoisting ring are used for being fixed with hoisting equipment, the first lower U-shaped hoisting ring and the second lower U-shaped hoisting ring are used for being fixed with the V-shaped insulator string, the hoisting tool is made of high-quality steel structures, has strong bearing capacity, and can assist in hoisting work in the mounting process of the V-shaped insulator string of the transformer substation.
The hoisting tool provided by the invention adopts a high-quality steel structure, and has the characteristics of high structural strength, strong bearing capacity, operational flexibility, convenience in carrying and transportation and convenience in rapid assembly; the main body is a seamless steel pipe, accurate hoisting operation is facilitated by arranging a first adjusting screw hole, a second adjusting screw hole and a third adjusting screw hole, and binding, insulator fixing and hoisting installation functions can be smoothly completed; the first adjusting screw hole, the second adjusting screw hole and the third adjusting screw hole are designed, so that transverse quick adjustment is facilitated, and the offset of the insulator string in the hoisting process is reduced; the lower supporting rods are connected by using chains, so that the torsion in the hoisting process is relieved; the supporting legs in the insulator supporting piece are designed by rubber supporting legs, so that the insulator is effectively protected from being damaged. The first upper U-shaped hanging ring, the first lower U-shaped hanging ring, the second upper U-shaped hanging ring and the second lower U-shaped hanging ring on the bearing main rod are convenient to hoist quickly, can be adjusted quickly, and saves work preparation and arrangement time. The bearing main rod and the main rod form a double-layer rod design by arranging the expansion joint, the bearing is reliable and stable, and the swing amplitude is reduced.
The invention can solve the problem of hoisting work in the process of installing and replacing the V-shaped insulator string of the ultra-high voltage large-scale transformer substation, has the advantages of time and labor saving, and provides guarantee for technicians to accurately and efficiently complete the installation and replacement work of the V-shaped insulator string.
The present invention has been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (9)
1. The utility model provides a lifting device for installation of V type insulator of transformer substation which characterized in that includes:
the lower side of the middle position of the bearing main rod is provided with a main rod fixing part;
the upper side of the middle position of the lower support rod is provided with a support rod fixing part;
the connecting piece is used for fixedly connecting the force-bearing main rod and the lower supporting rod, one end of the connecting piece is connected with the main rod fixing part, and the second end of the connecting piece is fixed with the main rod fixing part;
a first adjusting screw hole is formed in a rod body of the force-bearing main rod, and a first upper U-shaped hanging ring, a first lower U-shaped hanging ring, a second upper U-shaped hanging ring and a second lower U-shaped hanging ring are arranged on two sides of the force-bearing main rod; the first upper U-shaped lifting ring and the second upper U-shaped lifting ring are fixed above the force-bearing main rod through a first fixing bolt penetrating through a first adjusting screw hole; the first lower U-shaped lifting ring and the second lower U-shaped lifting ring are fixed below the force-bearing main rod through a second fixing bolt penetrating through the first adjusting screw hole;
set up the second on the body of rod of lower part bracing piece and adjust the screw, the both ends of lower part bracing piece set up insulator support piece, insulator support piece includes support piece connecting portion and supporting leg, the first end setting of support piece connecting portion passes the second through third fixing bolt and adjusts the screw fixedly in lower part bracing piece inside, the supporting leg sets up the second end at bracing piece connecting portion.
2. The hoisting tool for installation of the V-shaped insulator of the transformer substation of claim 1, wherein a first telescopic rod and a second telescopic rod are arranged at two ends of the force-bearing main rod, third adjusting screw holes are formed in the first telescopic rod and the second telescopic rod, and the first lower U-shaped lifting ring and the second lower U-shaped lifting ring are fixed below the first telescopic rod and the second telescopic rod through the third adjusting screw holes by a second fixing bolt.
3. The hoisting tool for installation of the V-shaped insulator of the substation of claim 1, wherein the force-bearing main rod is welded to the main rod fixing part, and the lower support rod is welded to the support rod fixing part.
4. The hoisting tool for installation of the V-shaped insulator of the substation of claim 1, wherein the first adjusting screw holes are two screw holes which are arranged on two sides of the force-bearing main rod and symmetrically arranged along a central axis of the force-bearing main rod, and the second adjusting screw holes are two screw holes which are arranged on two sides of the lower support rod and symmetrically arranged along the central axis of the lower support rod.
5. The hoisting tool for installation of the V-shaped insulator of the transformer substation of claim 2, wherein the third adjusting screw holes are two screw holes which are arranged on two sides of the first telescopic rod/the second telescopic rod and symmetrically arranged along a central axis of the first telescopic rod/the second telescopic rod, and the first adjusting screw holes and the third adjusting screw holes are distributed at the same interval.
6. The hoisting tool for installation of the V-shaped insulator of the transformer substation of claim 2, wherein the first adjusting screw hole, the second adjusting screw hole and the third adjusting screw hole are all provided with multiple groups.
7. The hoisting tool for installation of the V-shaped insulator of the substation as claimed in claim 2, wherein the force-bearing main rod, the lower support rod, the first telescopic rod and the second telescopic rod are made of seamless steel tube materials.
8. A lifting tool for installation of a V-shaped insulator of a substation according to claim 1, characterized in that the support legs are arc-shaped supports made of rubber material.
9. A lifting tool for installation of a V-insulator of a substation according to claim 1, characterized in that the connecting piece is of a chain structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110901974.7A CN113581996B (en) | 2021-08-06 | 2021-08-06 | Hoisting tool for installing V-shaped insulator of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110901974.7A CN113581996B (en) | 2021-08-06 | 2021-08-06 | Hoisting tool for installing V-shaped insulator of transformer substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113581996A true CN113581996A (en) | 2021-11-02 |
| CN113581996B CN113581996B (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110901974.7A Active CN113581996B (en) | 2021-08-06 | 2021-08-06 | Hoisting tool for installing V-shaped insulator of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113581996B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08335416A (en) * | 1995-06-08 | 1996-12-17 | Ngk Insulators Ltd | V-shaped suspension type lighting insulator device |
| WO2001086772A1 (en) * | 2000-05-12 | 2001-11-15 | Tarczy Peter | Apparatus for elevated suspension of an overhead electrical conductor and overhead conductor suspension structure |
| JP2007207631A (en) * | 2006-02-03 | 2007-08-16 | Chugoku Electric Power Co Inc:The | Rocking prevention structure of overhead power transmission line suspension device |
| KR101692639B1 (en) * | 2015-09-10 | 2017-01-04 | 한국전력공사 | Changing Apparatus for Insulator Strings of Power Transmission Line and Changing Method for Insulator Strings of Power Transmission Line thereby |
| CN205985954U (en) * | 2016-08-01 | 2017-02-22 | 国网福建省电力有限公司 | Transformer substation's " V type " suspends strain insulator string hoisting support in midair |
| CN211057777U (en) * | 2019-06-18 | 2020-07-21 | 中交一公局海威工程建设有限公司 | Steel reinforcement cage hoisting device |
| CN212245871U (en) * | 2020-04-15 | 2020-12-29 | 中铁建设集团华北工程有限公司 | Shoulder pole type iron cable hoisting equipment |
| KR102250305B1 (en) * | 2020-03-12 | 2021-05-07 | 윤재규 | A supporting pole system for the installation of road facilities |
-
2021
- 2021-08-06 CN CN202110901974.7A patent/CN113581996B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08335416A (en) * | 1995-06-08 | 1996-12-17 | Ngk Insulators Ltd | V-shaped suspension type lighting insulator device |
| WO2001086772A1 (en) * | 2000-05-12 | 2001-11-15 | Tarczy Peter | Apparatus for elevated suspension of an overhead electrical conductor and overhead conductor suspension structure |
| JP2007207631A (en) * | 2006-02-03 | 2007-08-16 | Chugoku Electric Power Co Inc:The | Rocking prevention structure of overhead power transmission line suspension device |
| KR101692639B1 (en) * | 2015-09-10 | 2017-01-04 | 한국전력공사 | Changing Apparatus for Insulator Strings of Power Transmission Line and Changing Method for Insulator Strings of Power Transmission Line thereby |
| CN205985954U (en) * | 2016-08-01 | 2017-02-22 | 国网福建省电力有限公司 | Transformer substation's " V type " suspends strain insulator string hoisting support in midair |
| CN211057777U (en) * | 2019-06-18 | 2020-07-21 | 中交一公局海威工程建设有限公司 | Steel reinforcement cage hoisting device |
| KR102250305B1 (en) * | 2020-03-12 | 2021-05-07 | 윤재규 | A supporting pole system for the installation of road facilities |
| CN212245871U (en) * | 2020-04-15 | 2020-12-29 | 中铁建设集团华北工程有限公司 | Shoulder pole type iron cable hoisting equipment |
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| CN113581996B (en) | 2023-08-25 |
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Address after: 830002 Jianshe Road 5, Tianshan District, Urumqi, the Xinjiang Uygur Autonomous Region Applicant after: Super high voltage branch of State Grid Xinjiang Electric Power Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Address before: 830002 Jianshe Road 5, Tianshan District, Urumqi, the Xinjiang Uygur Autonomous Region Applicant before: MAINTENANCE COMPANY, STATE GRID XINJIANG ELECTRIC POWER Co. Applicant before: STATE GRID CORPORATION OF CHINA |
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