CN108847613B - High-altitude suspension device for overhauling transmission conductor - Google Patents
High-altitude suspension device for overhauling transmission conductor Download PDFInfo
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- CN108847613B CN108847613B CN201810700889.2A CN201810700889A CN108847613B CN 108847613 B CN108847613 B CN 108847613B CN 201810700889 A CN201810700889 A CN 201810700889A CN 108847613 B CN108847613 B CN 108847613B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 56
- 239000004020 conductor Substances 0.000 title claims abstract description 32
- 239000000725 suspension Substances 0.000 title claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 abstract description 7
- 238000005457 optimization Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910000922 High-strength low-alloy steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000862 numbness Toxicity 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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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Abstract
The invention provides a high-altitude suspension device for overhauling a transmission conductor, which belongs to the technical field of electric power overhauling tools and comprises a folding ladder frame, and a drag hook and a push hook which are respectively positioned at two ends of the folding ladder frame and used for hooking the transmission conductor, wherein a seat plate assembly is arranged on the folding ladder frame and positioned between the drag hook and the push hook, and the drag hook is positioned above the push hook; and blocking mechanisms for preventing the transmission conductor from sliding out are respectively arranged at the openings of the drag hook and the push hook. According to the high-altitude suspension device for overhauling the transmission conductor, the seat plate component enables a constructor to carry out operation of installing accessories by two hands, so that the construction progress is accelerated, and the working efficiency and the overhauling quality are improved; the drag hook and the push hook enable the folding ladder hung on the power transmission conducting wire to be installed quickly and conveniently, the drag hook is hung on the power transmission conducting wire easily, the blocking mechanism ensures that the power transmission conducting wire cannot slide out of the drag hook and the push hook, and personal safety of constructors is ensured.
Description
Technical Field
The invention belongs to the technical field of electric power overhaul tools, and particularly relates to a high-altitude suspension device for overhauling a transmission conductor.
Background
At present, the overhaul workload of the high-voltage overhead transmission conductor accounts for 70% of the overhaul work, and accessories are required to be installed on the transmission conductor in the high altitude. In the prior art, a maintenance constructor can only squat or stand on a maintenance tool for construction, and only can hold a power transmission conductor to keep a balance state by one hand and mount an accessory by the other hand in order to ensure safety. The overhauling method has the advantages of higher labor intensity, slow operation action, higher danger coefficient and potential safety hazard, and constructors can not operate on the transmission conductor for a long time. In order to ensure safety, the construction efficiency is low due to low overhauling speed, and once the center of gravity of constructors on a transmission conductor is deviated by negligence, overturning, falling and casualty accidents can be caused.
Disclosure of Invention
The invention aims to provide a high-altitude suspension device for overhauling a transmission conductor, which solves the technical problem that constructors can only carry out one-hand construction on a high-altitude overhauling tool in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that the overhead suspension device for overhauling the transmission wire comprises a folding ladder frame, and a drag hook and a push hook which are respectively positioned at two ends of the folding ladder frame and used for hooking the transmission wire, wherein a seat plate assembly is arranged on the folding ladder frame, the seat plate assembly is positioned between the drag hook and the push hook, and the drag hook is positioned above the push hook; and blocking mechanisms for preventing the transmission conductor from sliding out are respectively arranged at the openings of the drag hook and the push hook.
Further, the folding ladder frame comprises a pair of inclined parts and a pair of horizontal parts, an included angle between the pair of inclined parts and the pair of horizontal parts is alpha, and the pair of inclined parts are positioned above the pair of horizontal parts; the draw hook is arranged at the free end of the inclined part, the connecting end of the inclined part is movably connected with the connecting end of the horizontal part respectively, and the push hook is arranged at the free end of the horizontal part; the seat plate assembly is located between the pair of inclined portions and located at a middle lower portion of the inclined portions.
Furthermore, the openings of the two draw hooks face to the right, the upper parts of the two draw hooks are respectively connected with the free ends of the inclined parts, and the blocking mechanism is arranged on the opening side of the draw hooks.
Furthermore, the openings of the two push hooks face to the left, the middle parts of the two push hooks are respectively connected with the free ends of the pair of horizontal parts, and the blocking mechanism is arranged on the opening side of the push hooks.
Furthermore, the blocking mechanism comprises a limit baffle and a heavy hammer positioned at the lower end of the limit baffle; the lower end parts of the two drag hooks and the push hook are respectively provided with a raised stop block for preventing the limit baffle from rotating clockwise, a limit channel matched with the limit baffle is arranged on a hook body on the inner side of the raised stop block, the limit baffle penetrates through the limit channel, and the limit baffle is connected with the side wall of the limit channel through a hinge shaft; the upper end of the limit baffle is positioned above the raised stop block.
Further, the seat plate assembly comprises a movable part and a fixed part, and the movable part is connected with the fixed part through a hinge; two ends of the fixing part are respectively movably connected with opposite sides of the pair of inclined parts.
Furthermore, the two ends of the fixing part are respectively provided with a positioning pin in the radial direction, and a pair of opposite sides of the inclined part are respectively provided with a plurality of limiting holes matched with the positioning pins at intervals in sequence.
Furthermore, a pedal is arranged in the middle of each horizontal part, two ends of each pedal are respectively provided with a sliding block, and the opposite sides of each horizontal part are respectively provided with a limiting slide way matched with the sliding blocks.
Furthermore, telescopic rods for adjusting the size of alpha are respectively arranged between the pair of inclined parts and the pair of horizontal parts, the upper ends of the two telescopic rods are respectively hinged with the middle parts of the pair of inclined parts in a one-to-one correspondence manner, and the lower ends of the two telescopic rods are respectively hinged with the middle parts of the pair of horizontal parts in a one-to-one correspondence manner.
Furthermore, the joints of the pair of inclined parts and the pair of horizontal parts are respectively additionally provided with upright columns, the upper ends of the two upright columns are respectively hinged with the pair of inclined parts in a one-to-one correspondence manner, and the lower ends of the two upright columns are respectively hinged with the pair of horizontal parts in a one-to-one correspondence manner.
The overhead suspension device for overhauling the transmission conductor has the advantages that: compared with the prior art, the high-altitude suspension device for overhauling the transmission conductor, provided by the invention, has the advantages that the base plate component enables a constructor to carry out operation of installing accessories by two hands, the construction progress is accelerated, and the working efficiency and the overhauling quality are improved; the drag hook and the push hook enable the folding ladder hung on the power transmission conducting wire to be installed quickly and conveniently, the drag hook and the push hook are hung on the power transmission conducting wire easily, the blocking mechanism ensures that the power transmission conducting wire cannot slide off from the drag hook and the push hook, and personal safety of constructors is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural view of an overhead suspension for repairing a power transmission conductor according to an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
wherein, in the figures, the respective reference numerals:
1. a weight; 2. a limit baffle; 3. a raised stop block; 4. a limiting channel; 5. a power transmission conductor; 6. pulling a hook; 7. an inclined portion; 8. a telescopic rod; 9. a seat pan assembly; 91. a movable portion; 92. a fixed part; 93. a hinge; 94. a limiting hole; 10. a column; 11. a limiting slide way; 12. a horizontal portion; 13. a foot pedal; 14. pushing a hook; 15. a limiting notch; 16. a handle.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and 2 together, the overhead suspension for repairing a power transmission conductor according to the present invention will now be described. The overhead suspension device for overhauling the power transmission conductor comprises a folding ladder frame, and a drag hook 6 and a push hook 14 which are respectively positioned at two ends of the folding ladder frame and used for hooking the power transmission conductor 5, wherein a seat plate assembly 9 is arranged on the folding ladder frame, the seat plate assembly 9 is positioned between the drag hook 6 and the push hook 14, and the drag hook 6 is positioned above the push hook 14; and blocking mechanisms for preventing the transmission conductor 5 from sliding out are respectively arranged at the openings of the drag hook 6 and the push hook 14.
The overhead suspension device for overhauling the transmission conductor has the advantages that: compared with the prior art, the high-altitude suspension device for overhauling the transmission conductor, provided by the invention, has the advantages that the base plate component enables a constructor to carry out operation of installing accessories by two hands, the construction progress is accelerated, and the working efficiency and the overhauling quality are improved; the drag hook and the push hook enable the folding ladder hung on the power transmission conducting wire to be installed quickly and conveniently, the drag hook and the push hook are hung on the power transmission conducting wire easily, the blocking mechanism ensures that the power transmission conducting wire cannot slide off from the drag hook and the push hook, and personal safety of constructors is ensured.
As a further optimization, the folding ladder frame comprises a pair of inclined parts 7 and a pair of horizontal parts 12, an included angle between the pair of inclined parts 7 and the pair of horizontal parts 12 is alpha, and the pair of inclined parts 7 is positioned above the pair of horizontal parts 12; the draw hook 6 is arranged at the free end of the inclined part 7, the connecting end of the inclined part 7 is movably connected with the connecting end of the horizontal part 12, and the push hook 14 is arranged at the free end of the horizontal part 12; the seat plate assembly 9 is located between the pair of inclined portions 7 and at a middle lower portion of the inclined portions 7.
Preferably, the included angle α is an acute angle, usually between 60 ° and 70 °, and the connecting end of the horizontal portion 12 and the connecting end of the inclined portion 7 are connected by a hinge shaft according to the field, so that the size of the included angle α can be flexibly adjusted.
All parts of the invention can adopt high-strength low-alloy steel pipes, such as 30CrMnSi, the thin-wall steel pipe made of the steel has good welding performance, the inclined part 7 and the drag hook 6, the horizontal part 12 and the push hook 14 are respectively made into an integrated structure, and the stability is good; all the parts are subjected to quenching and tempering heat treatment, the tensile strength is 80 Kg/per square millimeter, then flaw detection is carried out, and all the parts are hinged into an integral folding ladder frame by rivets, so that the integral folding ladder frame is light in weight, has good strength and elasticity, and is high in safety.
As a further optimization, the openings of the two drag hooks 6 face to the right, the upper parts of the two drag hooks 6 are respectively connected with the free ends of the pair of inclined parts 7, and the blocking mechanism is arranged on the opening side of the drag hooks 6.
According to the invention, the gap of the drag hook 6 faces to the right, the drag hook 6 is firstly used for hooking the upper electric lead 5, and then the inclined part 7 is pulled along the direction, so that the upper electric lead 5 can enter the drag hook 6, and the operation and the realization are convenient.
As a further optimization, the openings of the two push hooks 14 face to the left, the middle parts of the two push hooks 14 are respectively connected with the free ends of the pair of horizontal parts 12, and the blocking mechanism is arranged on the opening side of the push hooks 14.
According to the invention, the notch of the push hook 14 faces to the left, when the power transmission lead 5 is sleeved in the push hook 14, the horizontal part 12 is only needed to be pushed, so that the power lead 5 at the lower part of the push hook 14 can enter the push hook 14, the operation is very simple and convenient, and the push hook is particularly suitable for special environments such as high-altitude operation.
As a further optimization, the blocking mechanism comprises a limit baffle 2 and a heavy hammer 1 positioned at the lower end of the limit baffle 2; the lower end parts of the two drag hooks 6 and the push hook 14 are respectively provided with a convex stop 3, a hook body on the inner side of the convex stop 3 is provided with a limit passage 4 matched with the limit baffle 2, the limit baffle 2 penetrates through the limit passage 4, and the limit baffle 2 is connected with the side wall of the limit passage 4 through a hinge shaft; the upper end of the limit baffle 2 is positioned above the convex stop block 3.
Preferably, the lower part of the convex block 3 is provided with a transverse limiting notch 15 with a downward opening, the limiting notch 15 is transversely communicated with the limiting channel 4, and the limiting notch 15 enables the rotation angle of the limiting baffle 2 to be increased, so that the gap between the upper end of the limiting baffle 2 and the upper part of the drag hook 6 or the push hook 14 is increased, and the power transmission lead 5 can conveniently pass in and out of the drag hook 6 or the push hook 14; during installation, firstly, a flexible ladder is connected below a folding ladder frame, the folding ladder frame is lifted up in the vertical direction by a crane, when a power transmission lead 5 approaches, a constructor hooks the power transmission lead 5 on the upper portion by a draw hook 6, the power transmission lead 5 on the upper portion pushes a limit baffle 2, the limit baffle 2 rotates anticlockwise, due to the blocking effect of a convex stop block 3, the limit baffle 2 can only rotate anticlockwise, namely rotates in a rectangular limit channel 4 and a transverse limit notch 15, the clearance between the upper portion of the limit baffle 2 rotating anticlockwise and the upper portion of the draw hook 6 is increased, and the power transmission lead 5 smoothly enters the draw hook 6; during disassembly, the limiting baffle 2 is manually operated to enable the upper power transmission conductor 5 to slide out of the draw hook 6.
When the lower electric lead 5 enters the push hook 14, the push hook 14 is pushed, so that the lower electric lead 5 pushes the limiting baffle 2 on the lower electric lead to rotate clockwise, due to the blocking effect of the convex baffle 3, the limiting baffle 2 can only rotate clockwise in the rectangular limiting channel 4 and the transverse limiting notch 15, the gap between the upper part of the limiting baffle 2 which rotates clockwise and the upper part of the push hook 14 is increased, and the lower power transmission lead 5 smoothly enters the push hook 14; during disassembly, the limiting baffle 2 is manually operated to enable the lower power transmission line 5 to slide out of the push hook 14.
The heavy hammer 1 at the lower part of the limiting baffle 2 ensures that the limiting baffle 2 is always vertical to the limiting channel 4 under the action of gravity; the raised stop 3 makes the direction of rotation of the limit stop 2 unique, ensuring that the power conductor 5 does not slip out of the draw hook 6 or the push hook 14.
As a further optimization, the seat plate assembly 9 comprises a movable part 91 and a fixed part 92, wherein the movable part 91 is connected with the fixed part 92 through a hinge 93; the two ends of the fixing portion 92 are movably connected with the opposite sides of the pair of inclined portions 7.
Constructor can sit and operate the maintenance on seat subassembly 9, can go on through adjusting locating pin and spacing hole relative position according to different constructor's height, and constructor operating time has been of a specified duration also can have a rest a little, also can be more comfortable work of carrying on under constructor high altitude construction's the operating mode. The shapes of the limiting holes on the pair of inclined parts 7 are different, the limiting hole on the left inclined part 7 is circular, and the limiting hole on the right inclined part 7 is in a shape of a notch 7; when the position of the seat plate component 9 is changed, the positioning pin at one end of the seat plate component 9 is firstly placed into the circular limiting hole, and the positioning pin at the other end of the seat plate component 9 is pressed inwards from the notch, namely, the movement track of the positioning pin is in a shape like '7', so that the positioning pin is ensured not to slide out.
As a further optimization, positioning pins are respectively arranged at two ends of the fixing portion 92 in the radial direction, and a plurality of limiting holes 94 matched with the positioning pins are respectively arranged at opposite sides of the pair of inclined portions 7 at intervals in sequence.
The angle of the movable part 91 can be adjusted, and the movable part 91 can be adjusted to be a plane parallel to the horizontal part 12 during work, so that a constructor can sit on the movable part 91 to work; when the constructor wants to change the standing position, the movable part 91 can be rotated to be in the same plane with the inclined part 7, and the movable part is convenient to store, thereby saving space.
As a further optimization, a pedal 13 is arranged in the middle of the pair of horizontal parts 12, two ends of the pedal 13 are respectively provided with a sliding block, and the opposite sides of the pair of horizontal parts 12 are respectively provided with a limiting slide rail 11 matched with the sliding block.
According to the invention, constructors can put feet on the pedal plate 13, so that the comfort level is improved, the device is especially suitable for special conditions with long working time of high-altitude operation, and the standing posture can be adjusted even if the phenomena of foot numbness and the like occur.
As a further optimization, a pair of telescopic rods 8 for adjusting the size of α are respectively arranged between the pair of inclined parts 7 and the pair of horizontal parts 12, the upper ends of the two telescopic rods 8 are respectively hinged with the middle parts of the pair of inclined parts 7 in a one-to-one correspondence manner, and the lower ends of the two telescopic rods are respectively hinged with the middle parts of the pair of horizontal parts 12 in a one-to-one correspondence manner.
The size of the alpha can be adjusted by the telescopic rod 8 according to the distance between the upper and lower power transmission conductors 5, and the telescopic rod is convenient to store after work is finished, so that the whole device occupies a small storage space and is convenient to carry and transport.
As a further optimization, the connection positions of the pair of inclined parts 7 and the pair of horizontal parts 12 are respectively additionally provided with upright posts 10, the upper ends of the two upright posts 10 are respectively hinged with the pair of inclined parts 7 in a one-to-one correspondence manner, and the lower ends of the two upright posts 10 are respectively hinged with the pair of horizontal parts 12 in a one-to-one correspondence manner.
In the invention, the carrying handles 16 are arranged at the two sides of the pair of horizontal parts 12, thus being convenient for transportation and storage; the stand 10 makes whole ladder frame height reduce to stand 10 height through folding, and telescopic link 8 still plays the effect of fixed rake 7 and drag hook 6 relative position, and handle 16 mentions whole ladder frame, has avoided rake 7 and drag hook 6 uncontrolled.
Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The overhead suspension device for overhauling the power transmission conductor is characterized by comprising a folding ladder frame, a draw hook (6) and a push hook (14), wherein the draw hook (6) and the push hook (14) are respectively positioned at two ends of the folding ladder frame and used for hooking the power transmission conductor (5), a seat plate assembly (9) is arranged on the folding ladder frame, the seat plate assembly (9) is positioned between the draw hook (6) and the push hook (14), and the draw hook (6) is positioned above the push hook (14); blocking mechanisms for preventing the transmission conductor (5) from sliding out are respectively arranged at the openings of the drag hook (6) and the push hook (14);
the folding ladder frame comprises a pair of inclined parts (7) and a pair of horizontal parts (12), an included angle between the pair of inclined parts (7) and the pair of horizontal parts (12) is alpha, and the pair of inclined parts (7) are positioned above the pair of horizontal parts (12); the draw hook (6) is arranged at the free end of the inclined part (7), the connecting end of the inclined part (7) is movably connected with the connecting end of the horizontal part (12), and the push hook (14) is arranged at the free end of the horizontal part (12); the seat plate assembly (9) is positioned between the pair of inclined parts (7); the openings of the two drag hooks (6) face to the right, and the openings of the two push hooks (14) face to the left;
the blocking mechanism comprises a limiting baffle (2) and a heavy hammer (1) positioned at the lower end of the limiting baffle (2); the lower end parts of the two draw hooks (6) and the push hook (14) are respectively provided with a convex stop (3), a hook body on the inner side of the convex stop (3) is provided with a limit passage (4) matched with the limit baffle (2), the limit baffle (2) penetrates through the limit passage (4), and the limit baffle (2) is connected with the side wall of the limit passage (4) through a hinge shaft; the upper end of the limit baffle (2) is positioned above the convex stop block (3);
the lower part of the convex stop block (3) is provided with a transverse limiting notch (15) with a downward opening, and the limiting notch (15) is transversely communicated with the limiting channel (4).
2. Overhead suspension arrangement for overhauling an electric power transmission line according to claim 1, characterized in that the seat plate assembly (9) is located in the middle lower part of the inclined part (7).
3. Overhead suspension device for overhauling an electric power transmission line according to claim 2, characterized in that the upper parts of the two pulling hooks (6) are connected to the free ends of the pair of inclined parts (7), respectively, and the blocking means are arranged at the open side of the pulling hooks (6).
4. Overhead suspension arrangement for overhauling a power transmission line according to claim 2, characterized in that the middle of both said push hooks (14) are connected to the free ends of a pair of said horizontal parts (12), respectively, and said blocking means are arranged at the open side of said push hooks (14).
5. Overhead suspension device for overhauling a power transmission line according to claim 2, characterized in that the seat plate assembly (9) comprises a movable part (91) and a fixed part (92), the movable part (91) being connected to the fixed part (92) by means of a hinge (93); two ends of the fixing part (92) are respectively movably connected with opposite sides of the pair of inclined parts (7).
6. The overhead suspension apparatus for inspecting power transmission conductors according to claim 5, wherein the fixing portion (92) is provided with positioning pins at both ends in the radial direction, and a plurality of limiting holes (94) matched with the positioning pins are sequentially arranged at opposite sides of the pair of inclined portions (7) at intervals.
7. The overhead suspension apparatus for inspecting power transmission lines according to claim 2, wherein a foot rest (13) is provided in the middle of each of the pair of horizontal portions (12), slide blocks are provided at both ends of the foot rest (13), and a position-limiting slide (11) engaged with the slide blocks is provided on the opposite sides of each of the pair of horizontal portions (12).
8. The overhead suspension apparatus for inspecting power transmission lines according to claim 2, wherein a pair of inclined portions (7) and a pair of horizontal portions (12) are provided with a telescopic rod (8) therebetween for adjusting the α -size, and the upper ends of the two telescopic rods (8) are respectively hinged to the middle portions of the pair of inclined portions (7) in a one-to-one correspondence manner, and the lower ends of the two telescopic rods are respectively hinged to the middle portions of the pair of horizontal portions (12) in a one-to-one correspondence manner.
9. The overhead suspension system for inspecting power transmission conductors according to any of claims 2-8, wherein a vertical column (10) is added at the junction of a pair of inclined sections (7) and a pair of horizontal sections (12), the upper ends of the two vertical columns (10) are respectively hinged to the pair of inclined sections (7) in a one-to-one correspondence, and the lower ends of the two vertical columns are respectively hinged to the pair of horizontal sections (12) in a one-to-one correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700889.2A CN108847613B (en) | 2018-06-29 | 2018-06-29 | High-altitude suspension device for overhauling transmission conductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810700889.2A CN108847613B (en) | 2018-06-29 | 2018-06-29 | High-altitude suspension device for overhauling transmission conductor |
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| Publication Number | Publication Date |
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| CN108847613A CN108847613A (en) | 2018-11-20 |
| CN108847613B true CN108847613B (en) | 2021-10-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR200438937Y1 (en) * | 2007-03-06 | 2008-03-12 | 주식회사 한발 | Working ladder for polymer insulator of power electric transmission line |
| CN201191741Y (en) * | 2008-04-22 | 2009-02-04 | 上海市电力公司 | Three phase conductive wire insulation fixing rack |
| CN201230165Y (en) * | 2008-06-07 | 2009-04-29 | 华北电网有限公司秦皇岛电力公司 | Live operation conductive wire amending sliding flat stair |
| CN202488041U (en) * | 2012-03-20 | 2012-10-10 | 辽宁省电力有限公司营口供电公司 | 500 kilovolt hot-line work electric-field-entering ladder |
| CN103001146B (en) * | 2012-11-30 | 2015-03-25 | 国家电网公司 | Usage method of steel pipe pole operation platform |
| CN103296613A (en) * | 2013-06-18 | 2013-09-11 | 国家电网公司 | Hot-line working limit orbital cabin |
| CN205029247U (en) * | 2015-09-29 | 2016-02-10 | 贵州电网有限责任公司兴义供电局 | Folding maintenance ladder of overhead transmission line multipurpose |
| CN105790161A (en) * | 2016-05-10 | 2016-07-20 | 国网湖南省电力公司带电作业中心 | Omnibearing rotary telescoping insulating ladder and application method therefor |
| CN106356763A (en) * | 2016-10-21 | 2017-01-25 | 国网湖南省电力公司带电作业中心 | Method for entering equal potential of compact type electric transmission line and used folding ladder |
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