CN107221880B - Electrified crossing overhead line protection device - Google Patents
Electrified crossing overhead line protection device Download PDFInfo
- Publication number
- CN107221880B CN107221880B CN201710232409.XA CN201710232409A CN107221880B CN 107221880 B CN107221880 B CN 107221880B CN 201710232409 A CN201710232409 A CN 201710232409A CN 107221880 B CN107221880 B CN 107221880B
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- rocker arm
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- section vertical
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- 230000009471 action Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RGCLLPNLLBQHPF-HJWRWDBZSA-N phosphamidon Chemical compound CCN(CC)C(=O)C(\Cl)=C(/C)OP(=O)(OC)OC RGCLLPNLLBQHPF-HJWRWDBZSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000009466 transformation Effects 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
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
-
- 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
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- Emergency Lowering Means (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses an electrified crossing line protection device which is symmetrically arranged on two sides of a crossed line and comprises a holding pole fixedly erected on the ground, wherein the holding pole comprises a lower section vertical pole, an upper section vertical pole and at least one section of middle section vertical pole positioned between the lower section vertical pole and the upper section vertical pole, the lower section vertical pole, the middle section vertical pole and the upper section vertical pole are assembled together through threaded fasteners, the top of the upper section vertical pole is hinged with a rocker arm, the front part of the rocker arm is provided with a protection net, the rear part of the rocker arm is provided with a balancing weight, the lower section vertical pole is provided with a linear guide rail, a sliding block capable of sliding up and down along the linear guide rail is arranged in the linear guide rail, the sliding block is connected with a pulling rope and a pulling rope, the pulling rope is connected with the front side of the rocker arm, and the pulling rope is connected with a pulling device. Compared with the existing crossing frame, the invention does not need high-altitude operation, completes the assembly of the device on the ground, is easy to construct and has high safety coefficient.
Description
Technical Field
The invention relates to the field of power transmission and transformation line construction, in particular to a protection device capable of preventing a crossed line from being damaged by falling of a line in the process of high-voltage line wiring.
Background
Live crossing, also known as uninterruptible crossing, refers to being powered by a crossed power line when the line is erected and being powered off when the crossing frame is erected or dismantled. In the construction of power transmission line erection, the live line is often crossed when the lead and the ground wire are unfolded. At present, most of the power transmission engineering guide and ground wire in China adopt a power failure crossing mode during the development and the construction, so that the economic benefit of a power supply department is influenced, and the construction speed is low. The electrified spanning frame can reduce power failure loss, improves power supply reliability and construction speed, and is a direction of power transmission line construction development. Meanwhile, the domestic and foreign researches on electrified spanning generally only consider meeting the standard requirements in construction practice, but do not consider the workload of construction and the compensation of young seedlings, so that the electrified spanning technology which meets the standard requirements of a power grid, occupies small area and is simple and reliable in construction process becomes a urgent problem to be solved.
Live ride-through technology was originally derived from blackout operations. In order to achieve the aim of short-time power failure or no power failure, the wooden (bamboo and steel) electrified crossing and wiring construction technology is evolved earliest. The material of the crossing frame is not only wood or moso bamboo, but also steel pipes and the like. Overseas, the Dixon scanfold company in the united kingdom has used steel spanning frames to successfully span 132kV lines; in China, a wood (bamboo and steel) spanning frame is one of the commonly selected electrified spanning technologies for low-voltage line spanning. At present, the whole spanning frame which is used more in China comprises: tension uninterrupted crossing frame; double-column parallel type crossing frame; lifting type electrified spanning frame; multifunctional electrified spanning frame. However, the existing spanning frame has the defects of complex installation and low safety coefficient.
Disclosure of Invention
The invention aims to solve the technical problem of providing the electrified crossing overhead line protection device, which overcomes the defects of complex installation and lower safety coefficient of the existing crossing overhead line, and can quickly and safely perform protection work under the condition of no power failure in the high-voltage overhead line construction process.
In order to solve the technical problems, the invention adopts the following technical scheme: the electrified crossing wire-erecting protection device is symmetrically arranged on two sides of a crossed line and comprises a holding pole fixedly erected on the ground, wherein the holding pole comprises a lower-section vertical rod, an upper-section vertical rod and at least one section of middle-section vertical rod positioned between the lower-section vertical rod and the upper-section vertical rod, the lower-section vertical rod, the middle-section vertical rod and the upper-section vertical rod are assembled together through threaded fasteners, a plurality of stay wires are uniformly distributed on the vertical rods along the circumferential direction, the stay wires are connected with a ground anchor and tension the holding pole, the top of the upper-section vertical rod is hinged with a rocker arm, the front part of the rocker arm is provided with a protection net, the rear part of the rocker arm is provided with a balancing weight, the lower-section vertical rod is provided with a linear guide rail, a sliding block capable of sliding up and down along the linear guide rail is arranged in the linear guide rail, the sliding block is connected with the stay wires and the traction rope, and the traction rope is connected with the front side of the rocker arm; under the effect of balancing weight under the unoperated state, the rocking arm rotates backward, and during the operating condition, draw gear pulls the haulage rope, and the haulage rope pulls the slider and slides down along linear guide to drive the stay cord and downwards pull the rocking arm, make the rocking arm rotate to horizontal position forward, thereby make the rocking arm butt joint of spanned circuit both sides, the protection screen panel that sets up on the rocking arm is established in spanned circuit top.
Preferably, the upper section upright rod is welded with a working limit and a non-working limit to respectively limit the working state and the non-working state of the rocker arm.
Preferably, a clasping clamp which is clasped and fixed is arranged on the upper-section upright rod, and a bearing is arranged between the clasping clamp and the rocker arm so that a revolute pair is formed between the clasping clamp and the rocker arm.
Preferably, the stay wire comprises an upward stay wire which is connected to the upper section upright rod and is uniformly circumferentially arranged, and a downward stay wire which is connected to the middle section upright rod and is uniformly circumferentially arranged, wherein the downward stay wire is connected with the ground anchor through a double hook, and the upward stay wire is connected with the ground anchor through a lever block.
Preferably, a ground column is provided on the ground, and the lower-stage upright is connected to the ground column by a pin.
Preferably, the bottom of the lower-section upright rod and the ground column are arranged in the base, and the base is fixed on the ground through ground nails.
Preferably, the traction device comprises a traction motor and a pulley block, and the traction motor winds the traction rope around the pulley block to drive the sliding block to move downwards along the linear guide rail.
The invention is symmetrically arranged at both sides of the crossed line, the position is determined by the width of the crossed line, and the working length of the rocker arm is also determined by the width. When the device works, the rocker arm rotates to a plane vertical to the holding pole to realize butt joint, so that the protection net cover arranged on the rocker arm is arranged above the spanned line, and the spanned line is protected.
Compared with the existing crossing frame, the invention does not need high-altitude operation, completes the assembly of the device on the ground, realizes the protection of the electrified line through the device after the pole is erected, has easy construction, high safety coefficient, easy transportation and assembly and high recycling efficiency.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a view in the direction A of FIG. 1;
FIG. 3 is an enlarged view of the portion II of FIG. 1;
fig. 4 is a schematic diagram of a connection structure of the holding pole and the rocker arm;
FIG. 5 is a schematic view of a rocker arm assembly;
FIG. 6 is a schematic diagram of the connection structure of the pole, post and base;
fig. 7 is a schematic diagram of the present invention when symmetrically arranged across a line.
Reference numerals:
1. the hydraulic power generation device comprises a holding pole, a balancing weight, a rocker arm, a limiting rope, an upper section vertical rod, a middle section vertical rod, a linear sliding rail, a sliding block, a lower section vertical rod, a base, a pulley block, a traction motor, a ground anchor, a hand hoist, a double hook, a pull-down wire, a pull-up wire, a pull rope, a working limit and a working limit.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.
As shown in fig. 1 and 2, an electrified crossing line protection device comprises a holding pole 1 which is fixedly erected on the ground, wherein the holding pole 1 adopts a cylindrical hollow structure (an LB-3 holding pole can also be adopted, and mainly provides a supporting effect depending on actual conditions). The holding pole 1 comprises a lower section vertical rod 9, an upper section vertical rod 5 and at least one middle section vertical rod 6 positioned between the lower section vertical rod 9 and the upper section vertical rod 5. The height adjustment of the device can be realized according to the height of the spanned line, the middle section upright rod 6 is mainly utilized, the height of the general lower section upright rod is 8 meters, the height of the upper section upright rod is 8 meters, the single height of the middle section upright rod is 6 meters, and the number of the middle section upright rods can be determined according to actual needs.
The holding pole 1 is uniformly distributed with a plurality of stay wires along the circumferential direction, and the stay wires are connected with the ground anchors 13 and tighten the holding pole. In particular to the embodiment, the pull wire comprises an upper pull wire 17 which is connected to the upper-section upright 5 and is uniformly circumferentially arranged, and a lower pull wire 16 which is connected to the middle-section upright 6 and is uniformly circumferentially arranged, wherein the lower pull wire 16 is connected with the ground anchor 13 through a double hook 15, and the upper pull wire 17 is connected with the ground anchor through a lever block 14. The safety positioning of the whole device is realized through the stay wire.
The lower section pole setting 9 is provided with a linear guide rail 7, a sliding block 8 capable of sliding up and down along the linear guide rail is arranged in the linear guide rail 7, the sliding block 8 is connected with a pull rope 18 and a traction rope, the pull rope is connected with the front side of a rocker arm, and the traction rope is connected with a traction device.
The upper upright 5 is welded with a working limit 19 and a non-working limit 20 to limit the working state and the non-working state of the rocker arm 3. The working limit 19 prevents the rocker arm from being in a singular position, and the working limit 18 and the limit rope 4 prevent the rocker arm from rotating too much in angle to influence the spanned line.
The upper section pole setting is provided with annular grooves for realizing the positioning of the enclasping clamp, and each 3 m position is provided with a corresponding working limit 19, a corresponding non-working limit 20 and a corresponding limit rope 4 for realizing the limit of the rocker arm. The working limit 19 and the non-working limit 20 are both held tightly in the ring groove by a holding clamp (such as a hoop).
As shown in fig. 3, the lower upright 9, the middle upright 6 and the upper upright 5 are assembled together by a first threaded fastener 22.
As shown in fig. 2, 4 and 5, the front part of the rocker arm 3 is provided with a protection net 21, the upper section upright 5 is provided with a clasping clamp 24 which is clasped and fixed, the clasping clamp 24 is clasped and fixed by a second threaded fastener 25, a bearing 23 is arranged between the clasping clamp 24 and the rocker arm 3, the clasping clamp is provided with a rotating shaft, the rocker arm 3 is provided with a bearing, and the rotating shaft is supported on the bearing 23, so that a revolute pair is formed between the clasping clamp 24 and the rocker arm 3.
As shown in fig. 6, a ground pillar 27 is provided on the ground, and the lower pole 9 is connected to the ground pillar 27 by a pin 26. The bottom of the lower upright rod and the ground post are arranged in the base 10, and the base 10 is fixed on the ground through ground nails 28.
As shown in fig. 7, the device is symmetrically arranged on both sides of the crossed line, the position is determined by the width of the crossed line, and the working length of the rocker arm is also determined by the width. When the device works, the rocker arm rotates to a plane vertical to the holding pole to realize butt joint, so that a protection effect on a spanned line is achieved.
In the non-working state, the rocker arm 3 and the holding pole 1 are assembled on the ground, the rocker arm 3 rotates backwards under the action of the balancing weight 2, and the protection net 21 of the rocker arm 3 can not cross a spanned electrified line in the standing process of the holding pole.
The traction device comprises a traction motor 12 and a pulley block 11, when the traction device works, the traction motor 12 rolls a traction rope, the sliding block 8 is pulled to move downwards along the linear sliding rail 7 to drive the pull rope 18, and the rocker arm 3 is pulled to rotate to a working position, namely a horizontal position, so that protection of a spanned circuit is realized.
Because the rocker arm itself can hang the protection net, utilize slider-crank's theory of operation simultaneously, realize the rotation of rocker arm when slider rectilinear movement, rotate to the perpendicular plane of holding pole, realize the protection to the circuit. Thereby increasing the protection range.
The assembly of the rocker arm 3 and the holding clamp 24, mainly the assembly of the bearing 23, can be realized on the ground as shown in fig. 4 and 5, so that a revolute pair can be formed between the rocker arm 3 and the holding clamp 24. And the protective net 21 is hung on the ground.
Before construction, the number of middle section uprights 6 is calculated with reference to the height of the crossed line and a certain safety height. The specifications of the pull rope 18 and the limit rope 4 are calculated according to an empirical formula in consideration of the self weight of the rocker arm and the impact force applied by the line falling onto the safety net, and the weight of the required balancing weight 2 is calculated according to the net-carried rocker arm and the net weight, so that the balance effect is achieved. The traction force of the corresponding pulling rope 18 is calculated according to the traction force required by the rotation of the rocker arm 3, so that the corresponding traction motor 12, the traction rope and the pulley block 11 are selected.
After all the components have been selected, the assembly of the device is carried out according to fig. 1. First, the lower pole 9 and the ground pole 27 are connected by a pin 26 to form a revolute pair, and then the base 10 is fixed on the ground by a ground nail 28. The lower section upright rod 9 is welded with a linear slide rail 7, and a slide block 8 on the linear slide rail 7 realizes linear motion. The lower section upright 9 can be fixed with a plurality of middle section uprights 6 through threaded fasteners.
And then the upper upright 5 and related components are assembled. The ring groove on the upper section upright 5 can be positioned to hold the clamp 24, so that the assembly of the rocker arm 3 and the upper section upright 5 is realized, and after the assembly is completed, the balancing weight 2 and the limiting rope 4 can be welded. The upper upright 5 also needs to be welded with a work limit 19 and a non-work limit 20 at the periphery of the ring groove.
After the upper section upright rod 5 is assembled, the assembly of the upper section upright rod and the middle section upright rod is carried out through a threaded fastener.
After the whole holding pole 1 is assembled, the standing process of the holding pole 1 is realized under the action of the pull rope 18, and at the moment, the whole rocker arm 3 is in a standing state, namely a non-working state, due to the action of the balancing weight 2. After standing, the base 10 can assist in positioning, and is connected with the ground anchor 13 under the action of the pull-up wires 17 and the pull-down wires 16 which are uniformly circumferentially arranged, the lever block 14 and the double hooks 15, so that safe positioning is realized under the action of pulling force.
When the device works, the traction motor 12 rolls the traction rope, the sliding block 8 is pulled to realize the downward movement of the sliding block, the pull rope 18 is driven, and the rocker arm 3 is pulled to rotate to a working position, namely a horizontal position, so that the protection of a spanned circuit is realized.
After the wiring is completed, the traction force is slowly unloaded, the rocker arm 3 returns to a non-working state under the action of the balancing weight 2, and then the holding pole 1 is laid down to detach all parts.
The device can realize cyclic utilization according to the implementation rule, and is convenient to assemble, disassemble and transport.
While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.
Claims (6)
1. An electrified crossing line protection device which is symmetrically arranged at two sides of a crossed line, and is characterized in that: the ground-engaging pole comprises a pole body which is fixedly erected on the ground, wherein the pole body comprises a lower-section pole body, an upper-section pole body and at least one middle-section pole body positioned between the lower-section pole body and the upper-section pole body, the lower-section pole body, the middle-section pole body and the upper-section pole body are assembled together through threaded fasteners, a plurality of stay wires are uniformly distributed on the pole body along the circumferential direction, the stay wires are connected with a ground anchor and tension the pole body, the top of the upper-section pole body is hinged with a rocker arm, the front part of the rocker arm is provided with a protection net, the rear part of the rocker arm is provided with a balancing weight, the lower-section pole body is provided with a linear guide rail, a sliding block capable of sliding up and down along the linear guide rail is arranged in the linear guide rail, the sliding block is connected with a stay wire and a traction rope, and the traction rope is connected with the front side of the rocker arm; under the action of the balancing weight, the rocker arm rotates backwards, in the working state, the traction device pulls the traction rope, the traction rope pulls the sliding block to slide downwards along the linear guide rail and drives the pull rope to pull the rocker arm downwards, so that the rocker arm rotates forwards to a horizontal position, the rocker arms on two sides of a spanned line are butted, and the protection net cover arranged on the rocker arm is arranged above the spanned line; the traction device comprises a traction motor and a pulley block, and the traction motor scrolls a traction rope to wind around the pulley block to drive the sliding block to move downwards along the linear guide rail.
2. The live crossover line protection device defined in claim 1, wherein: and the upper section upright rod is welded with a working limit and a non-working limit to respectively limit the working state and the non-working state of the rocker arm.
3. The live crossover line protection device defined in claim 1, wherein: the upper section pole setting is provided with a enclasping clamp which is enclasping and fixed, and a bearing is arranged between the enclasping clamp and the rocker arm so as to form a revolute pair between the enclasping clamp and the rocker arm.
4. The live crossover line protection device defined in claim 1, wherein: the pull wire comprises an upward pull wire which is connected to the upper section upright rod and is uniformly circumferentially arranged, and a downward pull wire which is connected to the middle section upright rod and is uniformly circumferentially arranged, wherein the downward pull wire is connected with the ground anchor through a double hook, and the upward pull wire is connected with the ground anchor through a lever block.
5. The live crossover line protection device defined in claim 1, wherein: the ground is provided with a ground column, and the lower-section upright rod is connected to the ground column through a pin.
6. The live crossover line protection device defined in claim 5, wherein: the bottom of hypomere pole setting and ground post are all located in the base, the base passes through the ground nail to be fixed subaerial.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232409.XA CN107221880B (en) | 2017-04-11 | 2017-04-11 | Electrified crossing overhead line protection device |
| CN202310789580.6A CN117013437A (en) | 2017-04-11 | 2017-04-11 | Method for installing electrified crossing overhead line protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232409.XA CN107221880B (en) | 2017-04-11 | 2017-04-11 | Electrified crossing overhead line protection device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310789580.6A Division CN117013437A (en) | 2017-04-11 | 2017-04-11 | Method for installing electrified crossing overhead line protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107221880A CN107221880A (en) | 2017-09-29 |
| CN107221880B true CN107221880B (en) | 2023-08-29 |
Family
ID=59927537
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310789580.6A Pending CN117013437A (en) | 2017-04-11 | 2017-04-11 | Method for installing electrified crossing overhead line protection device |
| CN201710232409.XA Active CN107221880B (en) | 2017-04-11 | 2017-04-11 | Electrified crossing overhead line protection device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310789580.6A Pending CN117013437A (en) | 2017-04-11 | 2017-04-11 | Method for installing electrified crossing overhead line protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117013437A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282509B (en) * | 2019-07-23 | 2024-07-26 | 广东电网有限责任公司 | Winding integrated device for crossing wiring of power grid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054829A (en) * | 1990-05-14 | 1991-10-08 | Olsen Peter F | Wire placing device |
| CN1586827A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Joint-telescopic type super high voltage live cleaning robot |
| JP3161094U (en) * | 2010-04-27 | 2010-07-22 | 株式会社ヒメノ | Conveyor device to transfer overhead ground wire and power line simultaneously |
| CN203967625U (en) * | 2014-07-14 | 2014-11-26 | 国网上海市电力公司 | A kind of overhead facility crossing frame |
| CN204333766U (en) * | 2014-12-11 | 2015-05-13 | 江苏省电力公司常州供电公司 | A kind of portable transmission overhead line crossing construction device |
| CN205355673U (en) * | 2016-01-06 | 2016-06-29 | 扬州市振东电力器材有限公司 | High -speed railway of not stopping transport across device's span beam rotary mechanism |
| CN205377169U (en) * | 2016-01-12 | 2016-07-06 | 国网山东省电力公司夏津县供电公司 | Crossing structure for transmission line is erect to cantilever type |
| CN205429566U (en) * | 2015-10-21 | 2016-08-03 | 三一汽车起重机械有限公司 | Crossing structure |
| EP3081524A1 (en) * | 2015-04-13 | 2016-10-19 | Eric Salvi | Mesh track protection |
| CN206673464U (en) * | 2017-04-11 | 2017-11-24 | 国网浙江台州市路桥区供电公司 | One kind lives across stringing protection device |
-
2017
- 2017-04-11 CN CN202310789580.6A patent/CN117013437A/en active Pending
- 2017-04-11 CN CN201710232409.XA patent/CN107221880B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054829A (en) * | 1990-05-14 | 1991-10-08 | Olsen Peter F | Wire placing device |
| CN1586827A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Joint-telescopic type super high voltage live cleaning robot |
| JP3161094U (en) * | 2010-04-27 | 2010-07-22 | 株式会社ヒメノ | Conveyor device to transfer overhead ground wire and power line simultaneously |
| CN203967625U (en) * | 2014-07-14 | 2014-11-26 | 国网上海市电力公司 | A kind of overhead facility crossing frame |
| CN204333766U (en) * | 2014-12-11 | 2015-05-13 | 江苏省电力公司常州供电公司 | A kind of portable transmission overhead line crossing construction device |
| EP3081524A1 (en) * | 2015-04-13 | 2016-10-19 | Eric Salvi | Mesh track protection |
| CN205429566U (en) * | 2015-10-21 | 2016-08-03 | 三一汽车起重机械有限公司 | Crossing structure |
| CN205355673U (en) * | 2016-01-06 | 2016-06-29 | 扬州市振东电力器材有限公司 | High -speed railway of not stopping transport across device's span beam rotary mechanism |
| CN205377169U (en) * | 2016-01-12 | 2016-07-06 | 国网山东省电力公司夏津县供电公司 | Crossing structure for transmission line is erect to cantilever type |
| CN206673464U (en) * | 2017-04-11 | 2017-11-24 | 国网浙江台州市路桥区供电公司 | One kind lives across stringing protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117013437A (en) | 2023-11-07 |
| CN107221880A (en) | 2017-09-29 |
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