CN114759485B - Electrified recovery method for falling off of upper end of climbing ladder of steel pipe pole tower - Google Patents
Electrified recovery method for falling off of upper end of climbing ladder of steel pipe pole tower Download PDFInfo
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- CN114759485B CN114759485B CN202210356785.0A CN202210356785A CN114759485B CN 114759485 B CN114759485 B CN 114759485B CN 202210356785 A CN202210356785 A CN 202210356785A CN 114759485 B CN114759485 B CN 114759485B
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- ladder
- rope
- traction rope
- recovered
- insulating
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000009194 climbing Effects 0.000 title claims description 18
- 238000011084 recovery Methods 0.000 title description 5
- 241000282326 Felis catus Species 0.000 claims abstract description 27
- 230000009193 crawling Effects 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001681 protective effect 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
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- Ladders (AREA)
Abstract
The invention discloses a method for recovering the falling off of the upper end of a steel tube tower cat ladder in a live mode, and belongs to the technical field of overhauling of steel tube tower cat ladders. The method comprises the following steps: the unmanned aerial vehicle is used for throwing the traction rope and the protection rope on the cross arm at the upper side of the crawling ladder to be restored, and the upper end of the traction rope and the upper end of the protection rope are pulled to the vicinity of the cross arm at the lower side of the crawling ladder to be restored; an operator carries an insulating operation tool, climbs to a cross arm at the lower side of the crawling ladder to be recovered through the crawling ladder, then ties a protection rope, and connects the traction rope with the upper end of the insulating operation tool; an operator holds an insulating operation tool to fix the upper end of the to-be-recovered ladder, and the ground operator pulls the traction rope to pull the to-be-recovered ladder to the original position; the operation personnel climb to waiting to resume cat ladder upper end under the protection of protection rope, will wait to resume cat ladder and body of tower and resume fixedly. The invention is assisted by ropes and insulating operation tools, so that operators can directly climb the tower for live maintenance, and the problems of large economic loss and difficult arrival at the operation position in the traditional operation mode are avoided.
Description
Technical Field
The invention relates to the technical field of maintenance of a steel tube tower crawling ladder, in particular to a method for recovering falling off of the upper end of the steel tube tower crawling ladder in an electrified manner.
Background
The steel pipe pole tower has the characteristics of small occupied area and improved utilization rate of a line corridor, and in recent years, the proportion of the steel pipe pole tower adopted by 220kV and below overhead transmission lines is increased year by year. A plurality of sections of climbing ladders are fixed on the steel pipe pole tower, so that the climbing maintenance is facilitated, however, after long-term use, the problem that the upper ends of the steel pipe pole tower climbing ladders fall off can occur, and the traditional recovery operation method is that after a power failure occurs on a line, an operator is lifted to a falling position by adopting a crane or an insulating arm car to be fixed again. However, such a power outage restoration operation method is large in economic loss and difficult to apply, and in addition, a power transmission line is often limited by terrain in the field, so that a crane or an insulated arm car is difficult to reach an operation position. Therefore, there is a need for a method for recovering the falling off of the upper end of a climbing ladder of a steel pipe tower in a live-line work manner, which is convenient to operate.
Disclosure of Invention
In view of the defects in the prior art, the invention provides the electrified recovery method for the falling-off of the upper end of the climbing ladder of the steel tube pole tower, and the worker directly climbs the tower for electrified maintenance by the aid of the rope and the insulating operation tool, so that the problems of large economic loss and difficult arrival at the operation position in the traditional operation mode are avoided.
In order to solve the technical problems, the invention adopts the following technical scheme:
a steel pipe pole tower cat ladder upper end falling off electrification recovery method comprises the following steps:
s1: the unmanned aerial vehicle is used for throwing the traction rope and the protection rope on the cross arm at the upper side of the crawling ladder to be restored, and the upper end of the traction rope and the upper end of the protection rope are pulled to the vicinity of the cross arm at the lower side of the crawling ladder to be restored;
s2: an operator carries an insulating operation tool, climbs to a cross arm at the lower side of the crawling ladder to be recovered through the crawling ladder, then ties a protection rope, and connects the traction rope with the upper end of the insulating operation tool;
s3: an operator holds an insulating operation tool to fix the upper end of the to-be-recovered ladder, and the ground operator pulls the traction rope to pull the to-be-recovered ladder to the original position;
s4: an operator climbs to the upper end of the to-be-restored cat ladder under the protection of the protection rope, and the to-be-restored cat ladder and the tower body are restored and fixed;
s5: and after the upper end of the steel tube tower ladder falls off and is electrified to recover, an operator unloads the traction rope and the insulating connecting tool and carries the insulating operating tool to go down the tower.
Further, the insulating operation tool comprises an insulating rod, and a locking hook arranged at the upper end of the insulating rod, wherein the locking hook comprises a U-shaped hook, an upper connecting ring, a lower connecting ring and a locking piece, the upper connecting ring is vertically arranged at the upper part of the closed end of the U-shaped hook, the lower connecting ring is vertically arranged at the lower part of the closed end of the U-shaped hook, the lower connecting ring is fixedly connected with the upper end of the insulating rod, and the locking piece is arranged at the inner side of the opening end of the U-shaped hook.
Further, the locking piece comprises two semicircular rings, openings of the two semicircular rings are opposite to each other, one end, close to the closed end of the U-shaped hook, of each semicircular ring is hinged to two sides of the U-shaped hook through a pin shaft, torsion springs are sleeved on the pin shafts, and therefore the outermost sides of the semicircular rings are tangent when the semicircular rings are not affected by external force.
Further, in S2, the traction rope is connected to the lower connection ring.
Further, in S3, the insulator spindle is held to the operation personnel, makes U-shaped couple card on waiting to resume the mobile jib of cat ladder, makes simultaneously go up the go-between cover is waiting to resume on the foot nail of one side of cat ladder, and it is fixed to wait to resume the cat ladder upper end, and in the fixed in-process, the mobile jib contacts two when the semicircle ring, two semicircle ring rotates to the outside, the mobile jib with break away from two when the semicircle ring, two resume initial condition under torsional spring effect, with the mobile jib lock be in U-shaped couple with two between the semicircle ring.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, a traction rope and a protection rope are thrown on a cross arm on the upper side of a to-be-recovered ladder by an unmanned aerial vehicle, the upper ends of the traction rope and the protection rope are arranged near the cross arm on the lower side of the to-be-recovered ladder, an operator climbs onto the cross arm on the lower side of the to-be-recovered ladder, the protection rope is tied, the upper end of an insulating operation tool is connected with the traction rope, the operator holds the upper end of the to-be-recovered ladder by holding the insulating operation tool, the ground operator pulls the traction rope, the to-be-recovered ladder is pulled to the original position, the operator climbs the upper end of the to-be-recovered ladder under the protection of the protection rope, and the to-be-recovered ladder and the tower body are recovered and fixed. The invention can realize live working, is convenient to operate, and can directly ascend to the tower by an operator without using a crane or an insulating arm car, thereby avoiding the problem that the crane cannot reach the working position due to the limitation of the terrain.
In addition, the U-shaped hook is clamped on the main rod of the ladder stand to be restored from the side surface, the upper connecting ring is sleeved on the foot nails of the ladder stand to be restored, the lower connecting ring is connected with the traction rope, in the clamping process, the two semicircular rings are extruded by the main rod to rotate, and after the main rod enters the U-shaped hook, the two semicircular rings are reset, so that the main rod is locked in the U-shaped hook, and safety accidents caused by falling off of the U-shaped hook during the ladder stand restoration are avoided.
Drawings
FIG. 1 is a schematic illustration of the operation of an embodiment of the present invention;
fig. 2 is a front view of an insulation manipulation tool in embodiment 2 of the present invention;
fig. 3 is a top view of an insulation manipulation tool in embodiment 2 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
Example 1
As shown in fig. 1, the method for recovering the falling off electrification of the upper end of the crawling ladder of the steel pipe pole tower comprises the following steps:
s1: the unmanned aerial vehicle is used for throwing the traction rope 1 and the protection rope 2 on the cross arm at the upper side of the cat ladder 3 to be recovered, and the upper ends of the traction rope 1 and the protection rope 2 are pulled to the vicinity of the cross arm at the lower side of the cat ladder 3 to be recovered;
s2: the operator 4 carries an insulating operation tool 5, climbs to a cross arm at the lower side of the to-be-recovered ladder 3 through the ladder, then ties the protective rope 2, and connects the traction rope 1 with the upper end of the insulating operation tool 5;
s3: an operator 4 holds an insulating operation tool 5 to fix the upper end of the to-be-recovered cat ladder 3, and the ground operator pulls the traction rope 1 to pull the to-be-recovered cat ladder 3 to the original position;
s4: the worker 4 climbs to the upper end of the to-be-recovered cat ladder 3 under the protection of the protection rope 2, and recovers and fixes the to-be-recovered cat ladder 3 and the tower body;
s5: after the upper end of the steel tube tower ladder falls off and is electrified to recover, an operator unwinds the traction rope 1 and the insulating connecting tool 5 and carries the insulating operating tool 5 to go down the tower.
In the embodiment of the invention, the insulating operation tool 5 is an insulating rod, the upper end of the insulating rod is provided with a hook, the hook is connected with a traction rope, and in S3, an operator holds the insulating rod by hand and clamps the hook on the main rod of the crawling ladder to be recovered.
The steel pipe pole tower is fixedly provided with a plurality of sections of climbing ladders for overhauling and climbing, each section of climbing ladder is fixedly connected with the steel pipe pole through the anchor ear, the steel pipe pole tower is used for a long time, the upper end of the climbing ladder can fall off, the steel pipe pole tower is powered off due to the fact that the length of a single section of climbing ladder is high and the weight of the single section of climbing ladder is large, the crane lifts an operator to the vicinity of the climbing ladder to be restored, the operation mode is high in safety and high in cost, and the steel pipe pole tower is mostly in the field or in a crop field, the crane is more limited in use, so that the climbing work is difficult to carry out.
Example 2
As shown in fig. 1 to 3, the method for recovering the falling off electrification of the upper end of the climbing ladder of the steel pipe pole tower comprises the following steps:
s1: the unmanned aerial vehicle is used for throwing the traction rope and the protection rope on the cross arm at the upper side of the crawling ladder to be restored, and the upper end of the traction rope and the upper end of the protection rope are pulled to the vicinity of the cross arm at the lower side of the crawling ladder to be restored;
s2: an operator carries an insulating operation tool, climbs to a cross arm at the lower side of the crawling ladder to be recovered through the crawling ladder, then ties a protection rope, and connects the traction rope with the upper end of the insulating operation tool;
s3: an operator holds an insulating operation tool to fix the upper end of the to-be-recovered ladder, and the ground operator pulls the traction rope to pull the to-be-recovered ladder to the original position;
s4: an operator climbs to the upper end of the to-be-restored cat ladder under the protection of the protection rope, and the to-be-restored cat ladder and the tower body are restored and fixed;
s5: and after the upper end of the steel tube tower ladder falls off and is electrified to recover, an operator unloads the traction rope and the insulating connecting tool and carries the insulating operating tool to go down the tower.
The embodiment of the invention relates to a method for recovering the falling off electrification of the upper end of a climbing ladder of a steel pipe pole tower, which is different from the embodiment 1 in that:
the insulating operation tool 5 comprises an insulating rod 51 and a locking hook arranged at the upper end of the insulating rod 51, wherein the locking hook comprises a U-shaped hook 52, an upper connecting ring 53, a lower connecting ring 54 and a locking piece, the upper connecting ring 53 is vertically arranged at the upper part of the closed end of the U-shaped hook 52, the lower connecting ring 54 is vertically arranged at the lower part of the closed end of the U-shaped hook 52, the lower connecting ring 54 is fixedly connected with the upper end of the insulating rod 51, and the locking piece is arranged at the inner side of the opening end of the U-shaped hook 52. The traction rope 1 is connected with the lower connecting ring 54.
The locking piece comprises two semicircular rings 55, openings of the two semicircular rings 55 are opposite, one ends of the two semicircular rings 55, which are close to the closed ends of the U-shaped hooks 52, are hinged to two sides of the U-shaped hooks 52 through pin shafts 56, torsion springs are sleeved on the pin shafts 56, and therefore the outermost sides of the two semicircular rings 55 are tangent when the semicircular rings are not affected by external force.
In the method for recovering the upper end of the steel pipe pole tower cat ladder in an electrified manner, in S3, an operator holds the insulating rod by hand, so that the U-shaped hook is clamped on the main rod of the cat ladder to be recovered, meanwhile, the upper connecting ring is sleeved on one side foot nail of the cat ladder to be recovered, the upper end of the cat ladder to be recovered is fixed, in the fixing process, when the main rod contacts with two semicircular rings, the two semicircular rings rotate outwards, and when the main rod is separated from the two semicircular rings, the two semicircular rings recover to an initial state under the action of the torsion spring, and the main rod is locked between the U-shaped hook and the two semicircular rings.
In the embodiment of the invention, in order to improve the connection stability of the insulating operation tool and the ladder to be restored, the U-shaped hook is clamped on the main rod of the ladder to be restored from the side surface, the upper connecting ring is sleeved on the foot nails of the ladder to be restored, the lower connecting ring is connected with the traction rope, in the clamping process, the two semicircular rings are extruded by the main rod to rotate, and after the main rod enters the U-shaped hook, the two semicircular rings are reset, so that the main rod is locked in the U-shaped hook, the safety accident caused by falling of the U-shaped hook when the ladder is restored is avoided, and the personal safety of operators is further ensured.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (1)
1. The method for recovering the falling off electrification of the upper end of the climbing ladder of the steel pipe pole tower is characterized by comprising the following steps of:
s1: the unmanned aerial vehicle is used for throwing the traction rope and the protection rope on the cross arm at the upper side of the crawling ladder to be restored, and the upper end of the traction rope and the upper end of the protection rope are pulled to the vicinity of the cross arm at the lower side of the crawling ladder to be restored;
s2: an operator carries an insulating operation tool, climbs to a cross arm at the lower side of the crawling ladder to be recovered through the crawling ladder, then ties a protection rope, and connects the traction rope with the upper end of the insulating operation tool;
s3: an operator holds an insulating operation tool to fix the upper end of the to-be-recovered ladder, and the ground operator pulls the traction rope to pull the to-be-recovered ladder to the original position;
s4: an operator climbs to the upper end of the to-be-restored cat ladder under the protection of the protection rope, and the to-be-restored cat ladder and the tower body are restored and fixed;
s5: after the upper end of the steel tube tower ladder falls off and is electrified and recovered, an operator unloads the traction rope and the insulating connecting tool and carries the insulating operating tool to go down the tower;
the insulation operation tool comprises an insulation rod and a locking hook arranged at the upper end of the insulation rod, wherein the locking hook comprises a U-shaped hook, an upper connecting ring, a lower connecting ring and a locking piece, the upper connecting ring is vertically arranged at the upper part of the closed end of the U-shaped hook, the lower connecting ring is vertically arranged at the lower part of the closed end of the U-shaped hook, the lower connecting ring is fixedly connected with the upper end of the insulation rod, and the locking piece is arranged at the inner side of the opening end of the U-shaped hook;
the locking piece comprises two semicircular rings, openings of the two semicircular rings are opposite to each other, one ends of the two semicircular rings, which are close to the closed end of the U-shaped hook, are respectively hinged to two sides of the U-shaped hook through pin shafts, and torsion springs are sleeved on the two pin shafts, so that the outermost sides of the two semicircular rings are tangent when the two semicircular rings are not acted by external force;
s2, connecting the traction rope with the lower connecting ring;
in S3, the operation personnel hold the insulating rod by hand, make U-shaped couple card on waiting to resume the mobile jib of cat ladder, make simultaneously go up the go-between cover is waiting to resume on the foot nail of one side of cat ladder, and it is fixed to wait to resume the cat ladder upper end, and in the fixed in-process, the mobile jib contacts two when the semicircle ring, two semicircle ring rotates to the outside, and when the mobile jib breaks away from two semicircle ring resumes initial condition under the torsional spring effect, with the mobile jib lock U-shaped couple with two between the semicircle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356785.0A CN114759485B (en) | 2022-03-31 | 2022-03-31 | Electrified recovery method for falling off of upper end of climbing ladder of steel pipe pole tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356785.0A CN114759485B (en) | 2022-03-31 | 2022-03-31 | Electrified recovery method for falling off of upper end of climbing ladder of steel pipe pole tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114759485A CN114759485A (en) | 2022-07-15 |
| CN114759485B true CN114759485B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210356785.0A Active CN114759485B (en) | 2022-03-31 | 2022-03-31 | Electrified recovery method for falling off of upper end of climbing ladder of steel pipe pole tower |
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| Country | Link |
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| CN (1) | CN114759485B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016019290A (en) * | 2014-07-04 | 2016-02-01 | 中国電力株式会社 | Gauge fall prevention tool |
| CN205488640U (en) * | 2016-03-04 | 2016-08-17 | 国网山东省电力公司平原县供电公司 | Novel couple formula earth connection |
| CN105958376A (en) * | 2016-06-08 | 2016-09-21 | 国网甘肃省电力公司检修公司 | Transmission line unmanned aerial vehicle and electric lifting device combined live working method |
| KR20170002073U (en) * | 2015-12-03 | 2017-06-13 | 김기숙 | Latch Type Line Clamp for an earthing equipment |
| CN206673435U (en) * | 2017-04-26 | 2017-11-24 | 国网山东省电力公司齐河县供电公司 | Insulating bar and insulating rod component |
| CN209626459U (en) * | 2019-04-25 | 2019-11-12 | 国网新疆电力有限公司阿勒泰供电公司 | Universal type earth operating lever |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254551B2 (en) * | 2018-01-16 | 2022-02-22 | Quanta Associates, L.P. | Apparatus and method for placing and tensioning an aerial, rope through a traveler of a power line |
-
2022
- 2022-03-31 CN CN202210356785.0A patent/CN114759485B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016019290A (en) * | 2014-07-04 | 2016-02-01 | 中国電力株式会社 | Gauge fall prevention tool |
| KR20170002073U (en) * | 2015-12-03 | 2017-06-13 | 김기숙 | Latch Type Line Clamp for an earthing equipment |
| CN205488640U (en) * | 2016-03-04 | 2016-08-17 | 国网山东省电力公司平原县供电公司 | Novel couple formula earth connection |
| CN105958376A (en) * | 2016-06-08 | 2016-09-21 | 国网甘肃省电力公司检修公司 | Transmission line unmanned aerial vehicle and electric lifting device combined live working method |
| CN206673435U (en) * | 2017-04-26 | 2017-11-24 | 国网山东省电力公司齐河县供电公司 | Insulating bar and insulating rod component |
| CN209626459U (en) * | 2019-04-25 | 2019-11-12 | 国网新疆电力有限公司阿勒泰供电公司 | Universal type earth operating lever |
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| Publication number | Publication date |
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| CN114759485A (en) | 2022-07-15 |
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