CN109193467B - Transmission line overhauls cat ladder - Google Patents
Transmission line overhauls cat ladder Download PDFInfo
- Publication number
- CN109193467B CN109193467B CN201811311469.1A CN201811311469A CN109193467B CN 109193467 B CN109193467 B CN 109193467B CN 201811311469 A CN201811311469 A CN 201811311469A CN 109193467 B CN109193467 B CN 109193467B
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- CN
- China
- Prior art keywords
- supporting rods
- wire
- supporting
- hook
- rods
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
Abstract
The invention discloses a power transmission line overhauling crawling ladder which comprises two supporting rods arranged in parallel, wherein a middle supporting rod is sequentially and vertically connected between the two supporting rods along the length direction, a cross arm hook is connected with the same end of each supporting rod, two limiting rods arranged in parallel are vertically connected between the other ends of the two supporting rods, two supporting rods are connected to the limiting rods close to the cross arm hook, the top ends of the two supporting rods incline towards each other, an included angle formed between the plane where the two supporting rods are located and the plane where the two supporting rods are located is 25-30 degrees, a supporting plate perpendicular to the supporting rods is connected between the top ends of the two supporting rods, a wire hook penetrates through the supporting plate, and the wire hook can rotate in the direction of 360 degrees. According to the ladder stand for overhauling, the wire hanging point can rotate left and right, so that the wire in the left direction or the right direction can be hung in a left and right adjusting mode, and the problem that the work can be carried out in only one direction due to the direction problem is solved.
Description
Technical Field
The invention relates to an overhauling crawling ladder, in particular to a power transmission line overhauling crawling ladder.
Background
At present, when a wire insulator of a power transmission line is replaced, the power transmission line needs to enter the wire side, an effective tool is not available all the time, the tool used by the traditional method has great limitation, the traditional method can only be used for hanging in one direction, the traditional method can only be used for carrying out work in one direction, and the use flexibility is poor.
Disclosure of Invention
The invention aims to solve the technical problems that a traditional tool has great limitation when being used, can be hung in one direction only, can work in one direction only and has poor use flexibility.
The invention is realized by the following technical scheme:
transmission line overhauls cat ladder, including two parallel arrangement's bracing piece, it has middle vaulting pole to link perpendicularly in proper order along length direction between the two bracing pieces, even there is the cross arm couple with one end of two bracing pieces, it has two parallel arrangement's gag lever post to link perpendicularly between the other end of two bracing pieces, even there are two spinal branch poles on the gag lever post that is close to the cross arm couple, the contained angle between two spinal branch poles and the gag lever post is 45-60, the top of two spinal branch poles is towards the opposite side slope, the contained angle between the plane at two spinal branch poles place and the plane at two bracing pieces place is 25-30, even there is the extension board perpendicular with the bracing piece between the top of two spinal branch poles, wear to be equipped with the wire couple on.
According to the ladder stand for overhauling, the wire hanging point can rotate left and right, so that the wire in the left direction or the right direction can be hung in a left and right adjusting mode, and the problem that the work can be carried out in only one direction due to the direction problem is solved. When the ladder stand is used, a maintainer carries the ladder stand to climb to the top end of a telegraph pole, then a cross arm hook on the ladder stand is hung on a cross arm of the telegraph pole, then a wire hook is erected on a wire on one side, the operator can climb from the cross arm of the telegraph pole to a place where the wire needs to be replaced by an insulator through a middle supporting rod of the ladder stand, and the ladder stand is detached from the cross arm after replacement is completed; the wire hook can rotate in the direction of 360 degrees, so that after the replacement of the insulator of the wire on one side is completed, the wire hook is taken down from the wire, then the wire hook is rotated by 180 degrees to enable the hook to face the other side, the wire hook can be hung on the wire on the other side, the wire hook can be adjusted left and right through flexible design of the wire hook to be conveniently hung on the wires on different sides, and the time of replacing the insulator of the power transmission line is shortened; when the ladder stand is hung on the wire, an operator lifts one end of the ladder stand, and then the wire hook is hung on the wire to hang the suspended movable ladder stand, so that the ladder stand is easy to hang empty, and can be hung by multiple operations, and the hanging time is prolonged; according to the invention, through the design of the supporting rods and the included angle between the plane where the two supporting rods are located and the plane where the two supporting rods are located is 25-30 degrees, when a wire is hung, the wire can be clamped in the included angle of 25-30 degrees formed between the plane of the supporting rods and the plane of the supporting rods, then the ladder stand is pulled reversely towards the direction of an operator, so that the wire is hung on the wire hook along the track of the supporting rods, the wire hanging time is greatly saved, and the efficiency is improved.
Still include the safety staple bolt, even there are safety rope and safety belt on the safety staple bolt, the tip of safety rope passes through the latch closure to be connected on the bracing piece, and the tip of safety belt even has locking device, when operating personnel overhauls, installs the safety staple bolt on the wire pole, then ties the safety belt on operating personnel's waist, links together maintainer with cat ladder, wire pole through the safety staple bolt, great improvement the security of maintenance in-process.
The hook of the wire hook is sleeved with an insulating sheath, so that abrasion to the wire is reduced.
The cross arm hook is provided with the locking device, so that the efficiency and the safety can be higher.
Bracing piece, middle vaulting pole all adopt aluminum alloy material to make, compare traditional cat ladder quality reduction, and is light nimble, alone can the independent operation.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the ladder stand for overhauling the power transmission line, the wire hanging point can rotate left and right, so that the wire in the left direction or the right direction can be hung in a left-right adjusting mode, and the problem that the work can be carried out in only one direction due to the direction problem is solved;
2. according to the ladder stand for overhauling the power transmission line, disclosed by the invention, when an operator overhauls, the safety hoop is arranged on the telegraph pole, then the safety belt is fastened on the waist of the operator, and the maintainer is connected with the ladder stand and the telegraph pole through the safety hoop, so that the safety in the overhauling process is greatly improved;
3. according to the ladder stand for overhauling the power transmission line, the insulating sheath is sleeved at the hook of the wire hook, so that the abrasion to the wire is reduced, the locking device is arranged on the cross arm hook, the ladder stand is more efficient and safer, the supporting rod and the middle supporting rod are made of aluminum alloy materials, the weight is reduced compared with that of a traditional ladder stand, the ladder stand is light and flexible, and one person can independently operate the ladder stand.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Reference numbers and corresponding part names in the drawings:
1-support rod, 2-middle support rod, 3-limiting rod, 4-support rod, 5-support plate, 6-wire hook, 7-safety hoop, 8-safety rope, 9-safety belt, 10-buckle and 11-cross arm hook.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
As shown in figure 1, the overhauling crawling ladder for the power transmission line comprises two support rods 1 which are arranged in parallel, wherein a middle support rod 2 is sequentially and vertically connected between the two support rods 1 along the length direction, a cross arm hook 11 is connected with the same end of each support rod 1, two limiting rods 3 which are arranged in parallel are vertically connected between the other ends of the two support rods 1, two support rods 4 are connected onto the limiting rods 3 close to the cross arm hook 11, the included angle between each support rod 4 and the corresponding limiting rod 3 is 45-60 degrees, the top ends of the two support rods 4 incline towards each other, the included angle between the plane where the two support rods 4 are located and the plane where the two support rods 1 are located is 25-30 degrees, a support plate 5 which is perpendicular to the support rods 1 is connected between the top ends of the two support rods 4, a wire hook 6 penetrates through the support plate 5, and the.
According to the ladder stand for overhauling, the wire hanging point can rotate left and right, so that the wire in the left direction or the right direction can be hung in a left and right adjusting mode, and the problem that the work can be carried out in only one direction due to the direction problem is solved. When the ladder stand is used, a maintainer carries the ladder stand to climb to the top end of a telegraph pole, then a cross arm hook on the ladder stand is hung on a cross arm of the telegraph pole, then a wire hook is erected on a wire on one side, the operator can climb from the cross arm of the telegraph pole to a place where the wire needs to be replaced by an insulator through a middle supporting rod of the ladder stand, and the ladder stand is detached from the cross arm after replacement is completed; the wire hook can rotate in the direction of 360 degrees, so that after the replacement of the insulator of the wire on one side is completed, the wire hook is taken down from the wire, then the wire hook is rotated by 180 degrees to enable the hook to face the other side, the wire hook can be hung on the wire on the other side, the wire hook can be adjusted left and right through flexible design of the wire hook to be conveniently hung on the wires on different sides, and the time of replacing the insulator of the power transmission line is shortened; when the ladder stand is hung on the wire, an operator lifts one end of the ladder stand, and then the wire hook is hung on the wire to hang the suspended movable ladder stand, so that the ladder stand is easy to hang empty, and can be hung by multiple operations, and the hanging time is prolonged; according to the invention, through the design of the supporting rods and the included angle between the plane where the two supporting rods are located and the plane where the two supporting rods are located is 25-30 degrees, when a wire is hung, the wire can be clamped in the included angle of 25-30 degrees formed between the plane of the supporting rods and the plane of the supporting rods, then the ladder stand is pulled reversely towards the direction of an operator, so that the wire is hung on the wire hook along the track of the supporting rods, the wire hanging time is greatly saved, and the efficiency is improved.
Preferably, still include safety staple bolt 7, even there are safety rope 8 and safety belt 9 on the safety staple bolt, and the tip of safety rope passes through latch closure 10 to be connected on the bracing piece, and the tip of safety belt even has locking device, when operating personnel overhauls, installs the safety staple bolt on the wire pole, then ties the safety belt on operating personnel's waist, links together maintainer with cat ladder, wire pole through the safety staple bolt, great improvement the security of overhauing the in-process.
Preferably, the hook of the wire hook is sleeved with an insulating sheath, so that abrasion to the wire is reduced.
Preferably, the cross arm hook is provided with a locking device, so that the efficiency and the safety can be improved.
Preferentially, bracing piece, middle vaulting pole all adopt aluminum alloy material to make, compare traditional cat ladder quality reduction, and is light nimble, and alone can the independent operation.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The ladder stand for overhauling the power transmission line comprises two supporting rods (1) which are arranged in parallel, wherein a middle supporting rod (2) is sequentially and vertically connected between the two supporting rods (1) along the length direction, and is characterized in that a cross arm hook (11) is connected with the same end of each supporting rod (1), two limiting rods (3) which are arranged in parallel are vertically connected between the other ends of the two supporting rods (1), two supporting rods (4) are connected onto the limiting rods (3) which are close to the cross arm hook (11), the included angle between each supporting rod (4) and the limiting rods (3) is 45-60 degrees, the top ends of the two supporting rods (4) incline towards each other, the included angle between the plane where the two supporting rods (4) are located and the plane where the two supporting rods (1) are located is 25-30 degrees, and a supporting plate (5) which is perpendicular to the supporting rods (1), the support plate (5) is provided with a wire hook (6) in a penetrating mode, and the wire hook (6) can rotate in the direction of 360 degrees.
2. The electric transmission line overhauling ladder stand according to claim 1, further comprising a safety hoop (7), wherein a safety rope (8) and a safety belt (9) are connected to the safety hoop (7), the end part of the safety rope (8) is connected to the support rod (1) through a buckle (10), and a locking device is connected to the end part of the safety belt (9).
3. The transmission line overhauling ladder stand as set forth in claim 1, wherein the hook of the wire hook (6) is sleeved with an insulating sheath.
4. The transmission line inspection ladder of claim 1, wherein a locking device is mounted on the cross arm hook (11).
5. The electric transmission line overhauling crawling ladder according to claim 1, wherein the supporting rod (1) and the middle supporting rod (2) are both made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311469.1A CN109193467B (en) | 2018-11-06 | 2018-11-06 | Transmission line overhauls cat ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811311469.1A CN109193467B (en) | 2018-11-06 | 2018-11-06 | Transmission line overhauls cat ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109193467A CN109193467A (en) | 2019-01-11 |
| CN109193467B true CN109193467B (en) | 2020-07-07 |
Family
ID=64942015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811311469.1A Expired - Fee Related CN109193467B (en) | 2018-11-06 | 2018-11-06 | Transmission line overhauls cat ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193467B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086123A (en) * | 2019-06-18 | 2019-08-02 | 国网四川省电力公司乐山供电公司 | A kind of power transmission lines overhauling replacement auxiliary device |
| CN110984833B (en) * | 2019-11-13 | 2021-06-08 | 中国南方电网有限责任公司超高压输电公司大理局 | Interlayer ladder stand for light-operated converter valve |
| CN111810047A (en) * | 2020-07-13 | 2020-10-23 | 安徽省雄峰起重机械有限公司 | Overhauling climbing frame based on crane |
| CN113266266B (en) * | 2021-05-31 | 2023-01-31 | 青海送变电工程有限公司 | Transmission line overhauls uses cat ladder |
| CN114221260B (en) * | 2021-12-21 | 2023-07-21 | 国网河南省电力公司洛阳供电公司 | Insulator overhauling frame of electric power tower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6769514B2 (en) * | 2002-01-07 | 2004-08-03 | Haverfield Corporation | Helicopter lineman's ladder and method for energized powerline repair |
| CN202055739U (en) * | 2011-04-28 | 2011-11-30 | 河南省电力公司驻马店供电公司 | Power transmission circuit outgoing line operation horizontal ladder |
| CN202888724U (en) * | 2012-11-20 | 2013-04-17 | 山东电力集团公司滨州供电公司 | Special ladder for overhauling concrete pole transmission line |
| CN203097699U (en) * | 2012-12-12 | 2013-07-31 | 金华送变电工程有限公司 | Overhead working bridge ladder for power transmission project |
| CN204402335U (en) * | 2015-01-20 | 2015-06-17 | 国家电网公司 | A kind of strain insulator Special maintenance tool |
| CN204532033U (en) * | 2015-04-14 | 2015-08-05 | 国家电网公司 | The high-altitude line maintenance two hanging ladder of safety |
-
2018
- 2018-11-06 CN CN201811311469.1A patent/CN109193467B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN109193467A (en) | 2019-01-11 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20201106 |