CN108952553B - Grounding electrode line equipotential ladder and use method thereof - Google Patents
Grounding electrode line equipotential ladder and use method thereof Download PDFInfo
- Publication number
- CN108952553B CN108952553B CN201810863795.7A CN201810863795A CN108952553B CN 108952553 B CN108952553 B CN 108952553B CN 201810863795 A CN201810863795 A CN 201810863795A CN 108952553 B CN108952553 B CN 108952553B
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- ladder
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- flat ladder
- hanging
- rotating shaft
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000005684 electric field Effects 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 4
- 210000003734 kidney Anatomy 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides an equipotential ladder of a grounding electrode circuit, which comprises a hanging ladder, a flat ladder and flat ladder connecting rods, wherein wire guide wheels are respectively arranged at two sides of the upper end of the hanging ladder, a rotating shaft perpendicular to the hanging ladder cross rod is arranged on the cross rod at the lower end of the hanging ladder, a rotating shaft connecting sleeve perpendicular to the flat ladder cross rod is arranged on the cross rod at one end of the flat ladder, after the rotating shaft is arranged on the rotating shaft connecting sleeve, the rotating shaft is in rotating fit with the rotating shaft connecting sleeve, the plane of the hanging ladder is perpendicular to the plane of the flat ladder, angle steel hooks for clamping iron rod main materials are respectively arranged at two ends of the flat ladder connecting rods, two flat ladder clamping seats for clamping the flat ladder are fixedly arranged on the flat ladder connecting rods, and fastening screws are arranged on the flat ladder clamping seats. The invention provides an equipotential ladder for a grounding electrode line, which is simple in field operation and convenient for operators to get in and out, and a use method thereof.
Description
Technical Field
The invention relates to the technical field of live working of a grounding electrode line, in particular to an equipotential ladder of the grounding electrode line and a use method of the equipotential ladder.
Background
The ground electrode and its wiring are an important component in a dc power transmission system. During bipolar operation, no current flows in the ground, and the ground electrode plays a role in clamping the neutral point potential of the converter. When the bipolar asymmetric mode and the single-stage earth return mode are operated, the bipolar asymmetric mode and the single-stage earth return mode not only play a role in clamping the neutral point potential of the converter, but also provide a path for direct current.
For live working of a grounding electrode line, the process of enabling an equipotential operator to enter a strong electric field is an important ring for normal development of live working. How to ensure that equipotential operators meet the requirements of combination gaps specified in safety regulations in the process of entering a strong electric field, and also achieve simple field operation and convenient entry and exit of operators is an important subject to be solved.
The mode of carrying out strong electric field by equipotential operators commonly used in China at present mainly comprises the following steps: (1) access with a climbing insulating rope ladder; (2) adopting an insulated hanging basket to enter a fixed-length arc line. The method (1) has the advantages of simple tools and convenient field operation, but the insulating rope ladder has insufficient rigidity, so that the comprehensive quality requirement of equipotential personnel is higher, and the comprehensive popularization and application in live working are difficult. The method (2) has the advantages of various towers, wide application range and the like, but the left rope and the right rope limit the operation space of equipotential personnel due to the characteristics of the insulating hanging basket, so that the operators are not beneficial to quickly entering the equipotential.
Disclosure of Invention
The invention aims to provide an equipotential ladder for a grounding electrode line, which is simple in field operation and convenient for operators to get in and out, and a use method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides an earth electrode circuit equipotential ladder, includes hangs ladder, flat ladder and flat ladder connecting rod, the upper end of hanging the ladder is equipped with the wire wheel respectively in both sides, be equipped with on the horizontal pole of hanging the ladder lower extreme with hang ladder horizontal pole looks vertically pivot, flat ladder be equipped with on the horizontal pole of one end with flat ladder horizontal pole vertically pivot coupling cover, the pivot install after the pivot coupling cover, the pivot with pivot coupling cover normal running fit, and hang ladder plane perpendicular to flat ladder plane, the both ends of flat ladder connecting rod are equipped with the angle steel couple that is used for the card to establish the iron pole main part respectively, be equipped with two on the flat ladder connecting rod and be used for the card to establish flat ladder cassette, be equipped with fastening screw on the flat ladder cassette.
Further, one end of the angle steel hook is provided with a hook-shaped part, the other end of the angle steel hook is provided with a threaded connection part, two ends of the flat ladder connecting rod are provided with angle steel hook mounting holes, and the angle steel hook is mounted on the angle steel hook mounting holes through connecting nuts.
Furthermore, two ends of the flat ladder connecting rod are respectively provided with a plurality of angle steel hook mounting holes along the length direction.
Further, the angle steel hook mounting holes are waist-shaped holes.
Furthermore, the flat ladder is made of rectangular pipes, and a rectangular clamping groove for the flat ladder to pass through is formed in the flat ladder clamping seat.
Furthermore, the flat ladder connecting rod is manufactured by adopting an oval pipe.
The invention also provides a use method of the grounding electrode line equipotential ladder, which comprises the following steps:
s1, combining and installing a hanging ladder and a flat ladder through a rotating shaft and a rotating shaft connecting sleeve, and enabling a hanging ladder cross rod to be parallel to the flat ladder cross rod;
s2, enabling the flat ladder to extend horizontally and be below the wires by equipotential operators, and lifting the flat ladder to enable the wire wheels on the hanging ladder to be located above the wires;
s3, rotating the hanging ladder through an operation rod to enable the hanging ladder cross rod to be perpendicular to the flat ladder cross rod;
s4, dropping the flat ladder to enable the wire wheel on the hanging ladder to be hung on the wire;
s5, clamping the flat ladder into a flat ladder clamping seat on a flat ladder connecting rod, adjusting the position of the flat ladder, and locking the flat ladder by using a set screw;
and S6, riding an equipotential operator on the flat ladder, gradually moving to the hanging ladder, entering a strong electric field, and carrying out maintenance operation.
After the technical scheme is adopted, the invention has the following advantages:
(1) When the ladder is used, the hanging ladder and the flat ladder are assembled and installed through the connecting sleeve of the rotating shaft and the rotating shaft, the hanging ladder cross rod is parallel to the flat ladder cross rod, the flat ladder is horizontally stretched below the lead by an equipotential operator, the flat ladder is lifted, the lead wheel on the hanging ladder is positioned above the lead, then the hanging ladder is rotated through the operating rod, the hanging ladder cross rod is vertical to the flat ladder cross rod, the flat ladder falls down, the lead wheel on the hanging ladder is hung on the lead, the flat ladder is clamped into the flat ladder clamping seat on the flat ladder connecting rod, the flat ladder position is adjusted, then the flat ladder is locked by the set screw, after no error is confirmed, the equipotential operator rides and sits on the flat ladder, and gradually moves towards the hanging ladder, a strong electric field is entered, and maintenance operation is carried out. The equipotential ladder is made of hard materials, operators can easily apply force and borrow force, can quickly grasp electrified wires when approaching high potential and quickly transfer the electrified wires to the wires, and has simple operation site and convenient access of operators.
(2) The connecting nuts are arranged at different positions of the threaded connection parts of the angle steel hooks, and the positions from the hooked parts of the angle steel hooks to the flat ladder link rod can be adjusted to adapt to iron rod main materials with different sizes.
(3) Because the distances between the iron rod main materials at the two sides are different due to different towers, the angle steel hooks are arranged in the different angle steel hook mounting holes to adapt to the iron rod main materials at the two sides with different distances.
(4) Because the distances between the iron rod main materials at two sides are different due to different towers, the angle steel hook mounting holes are waist-shaped holes, and the angle steel hooks are mounted at different positions in the angle steel hook mounting holes so as to be suitable for the iron rod main materials at two sides with different distances.
(5) The flat ladder is manufactured by rectangular pipes, and the clamping grooves on the flat ladder clamping seat are rectangular clamping grooves matched with the flat ladder, so that the flat ladder and the flat ladder clamping seat are firmly fixedly connected, the contact surface of the fastening screw and the flat ladder is a plane, and the fastening screw is more convenient to lock.
(6) The flat ladder connecting rod is made of oval pipes, and the section of the flat ladder connecting rod is oval, so that the bearing capacity of the flat ladder connecting rod is high.
Drawings
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic structural view of an equipotential ladder for a grounding electrode line of the present invention.
Fig. 2 is a front view of the stair-step linkage of the present invention.
Fig. 3 is a bottom view of the stair-step linkage of the present invention.
The names of the components marked in the figure are as follows:
1-hanging a ladder; 11-a rotating shaft; 2-flat ladder; 21-a rotating shaft connecting sleeve; 3-flat ladder link rod; 31-angle steel hook mounting holes; 4-wire guiding wheels; 5-angle steel hooks; 51-hook; 52-a threaded connection; 6-flat ladder clamping seat; 7-fastening screws.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the invention provides an equipotential ladder for a grounding electrode line, which comprises a hanging ladder 1, a flat ladder 2 and a flat ladder link rod 3.
The upper end of the hanging ladder 1 is respectively provided with wire wheels 4 at two sides, and a rotating shaft 11 vertical to the hanging ladder cross rod is arranged on the cross rod at the lower end of the hanging ladder 1. The horizontal rod at one end of the flat ladder 2 is provided with a rotating shaft connecting sleeve 21 vertical to the horizontal rod of the flat ladder, after the rotating shaft 11 of the hanging ladder 1 is arranged on the rotating shaft connecting sleeve 21 of the flat ladder 2, the rotating shaft 11 is in rotating fit with the rotating shaft connecting sleeve 21, and the plane of the hanging ladder is vertical to the plane of the flat ladder.
As shown in fig. 2 and 3, two ends of the flat ladder link 3 are respectively provided with an angle steel hook 5 for clamping an iron rod main material, one end of the angle steel hook 5 is provided with a hook-shaped part 51, the other end is provided with a threaded connection part 52, two ends of the flat ladder link 3 are provided with angle steel hook mounting holes 31, and the angle steel hook 5 is mounted on the angle steel hook mounting holes 31 through a connecting nut. Further, as the distances between the iron rod main materials at two sides are different due to different towers, a plurality of angle steel hook mounting holes are respectively formed at two ends of the flat ladder connecting rod along the length direction, and the angle steel hooks are mounted in the different angle steel hook mounting holes so as to adapt to the iron rod main materials at two sides with different distances. Further, the angle steel hook mounting holes are waist-shaped holes, and the angle steel hooks are mounted at different positions in the angle steel hook mounting holes so as to be matched with iron rod main materials at two sides with different distances.
Two flat ladder clamping seats 6 for clamping the flat ladder 2 are fixedly arranged on the flat ladder connecting rod 3, and fastening screws 7 are arranged on the flat ladder clamping seats 6.
The hanging ladder 1, the flat ladder 2 and the flat ladder connecting rod 3 are all made of insulating pipes, the flat ladder 2 is made of rectangular pipes, and the flat ladder connecting rod 3 is made of oval pipes.
Be equipped with on the flat ladder cassette 6 and supply flat ladder 2 to pass and with the rectangle draw-in groove of flat ladder 2 looks adaptation for flat ladder 2 is more firm with flat ladder cassette 6's the solid linkage, and the contact surface of fastening screw 7 and flat ladder 2 is the plane, makes the locking of fastening screw 7 also more convenient.
The embodiment also provides a use method of the grounding electrode line equipotential ladder, which comprises the following steps:
s1, combining and installing a hanging ladder and a flat ladder through a rotating shaft and a rotating shaft connecting sleeve, and enabling a hanging ladder cross rod to be parallel to the flat ladder cross rod;
s2, enabling the flat ladder to extend horizontally and be below the wires by equipotential operators, and lifting the flat ladder to enable the wire wheels on the hanging ladder to be located above the wires;
s3, rotating the hanging ladder through an operation rod to enable the hanging ladder cross rod to be perpendicular to the flat ladder cross rod;
s4, dropping the flat ladder to enable the wire wheel on the hanging ladder to be hung on the wire;
s5, clamping the flat ladder into a flat ladder clamping seat on a flat ladder connecting rod, adjusting the position of the flat ladder, and locking the flat ladder by using a set screw;
and S6, riding an equipotential operator on the flat ladder, gradually moving to the hanging ladder, entering a strong electric field, and carrying out maintenance operation.
In addition to the above preferred embodiments, the present invention has other embodiments, and various changes and modifications may be made by those skilled in the art without departing from the spirit of the invention, which is defined in the appended claims.
Claims (4)
1. The grounding electrode line equipotential ladder is characterized by comprising a hanging ladder, a flat ladder and flat ladder connecting rods, wherein wire wheels are respectively arranged at two sides of the upper end of the hanging ladder, a rotating shaft perpendicular to the hanging ladder cross rod is arranged on the cross rod at the lower end of the hanging ladder, a rotating shaft connecting sleeve perpendicular to the flat ladder cross rod is arranged on the cross rod at one end of the flat ladder, after the rotating shaft is mounted on the rotating shaft connecting sleeve, the rotating shaft is in rotating fit with the rotating shaft connecting sleeve, the plane of the hanging ladder is perpendicular to the plane of the flat ladder, angle steel hooks for clamping iron rod main materials are respectively arranged at two ends of the flat ladder connecting rods, two flat ladder clamping seats for clamping the flat ladder are fixedly arranged on the flat ladder connecting rods, and fastening screws are arranged on the flat ladder clamping seats; one end of the angle steel hook is provided with a hook-shaped part, the other end of the angle steel hook is provided with a threaded connection part, two ends of the flat ladder link rod are provided with angle steel hook mounting holes, and the angle steel hook is mounted on the angle steel hook mounting holes through a connecting nut; two ends of the flat ladder connecting rod are respectively provided with a plurality of angle steel hook mounting holes along the length direction;
the application method of the grounding electrode line equipotential ladder comprises the following steps:
s1, combining and installing a hanging ladder and a flat ladder through a rotating shaft and a rotating shaft connecting sleeve, and enabling a hanging ladder cross rod to be parallel to the flat ladder cross rod;
s2, enabling the flat ladder to extend below the wires by equipotential operators, and lifting the flat ladder to enable the wire wheels on the hanging ladder to be located above the wires;
s3, rotating the hanging ladder through an operation rod to enable the hanging ladder cross rod to be perpendicular to the flat ladder cross rod;
s4, dropping the flat ladder to enable the wire wheel on the hanging ladder to be hung on the wire;
s5, clamping the flat ladder into a flat ladder clamping seat on a flat ladder connecting rod, adjusting the position of the flat ladder, and locking the flat ladder by using a set screw;
and S6, riding an equipotential operator on the flat ladder, gradually moving to the hanging ladder, entering a strong electric field, and carrying out maintenance operation.
2. The earth electrode line equipotential ladder of claim 1 wherein said angle steel hanger mounting holes are kidney holes.
3. The grounding electrode line equipotential ladder of claim 1 wherein said flat ladder is fabricated from rectangular tubing and said flat ladder holder is provided with rectangular slots for the flat ladder to pass through.
4. The ground electrode line equipotential ladder of claim 1 wherein said flat ladder linkage is fabricated from oval tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863795.7A CN108952553B (en) | 2018-08-01 | 2018-08-01 | Grounding electrode line equipotential ladder and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863795.7A CN108952553B (en) | 2018-08-01 | 2018-08-01 | Grounding electrode line equipotential ladder and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108952553A CN108952553A (en) | 2018-12-07 |
| CN108952553B true CN108952553B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810863795.7A Active CN108952553B (en) | 2018-08-01 | 2018-08-01 | Grounding electrode line equipotential ladder and use method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN108952553B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108953B (en) * | 2018-12-19 | 2024-01-19 | 国网浙江省电力有限公司岱山县供电公司 | 10kV joins in marriage and changes gear electrified verifying device |
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| CN206117005U (en) * | 2016-10-21 | 2017-04-19 | 国网湖南省电力公司带电作业中心 | Get into used folding ladder of compact transmission line equipotential in -process |
| CN207353753U (en) * | 2017-09-21 | 2018-05-11 | 国网福建省电力有限公司 | Phase transfer current potential power tool in dry font anchor support |
| CN209244494U (en) * | 2018-08-01 | 2019-08-13 | 国网浙江省电力有限公司金华供电公司 | Ground electrode circuit Equipotential ladder |
-
2018
- 2018-08-01 CN CN201810863795.7A patent/CN108952553B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201318119Y (en) * | 2008-10-10 | 2009-09-30 | 上海市电力公司超高压输变电公司 | L-shaped insulating ladder for live-wire operation of strong electric field |
| CN203251017U (en) * | 2013-05-04 | 2013-10-23 | 山西省电力公司晋中供电分公司 | Insulation ladder tail end fixing device |
| CN203367865U (en) * | 2013-06-25 | 2013-12-25 | 国家电网公司 | Auxiliary bracket for maintaining power transmission line |
| CN104373037A (en) * | 2013-08-14 | 2015-02-25 | 扬州华泰特种设备有限公司 | Novel steel pipe tower assistant ladder |
| CN204552588U (en) * | 2015-01-12 | 2015-08-12 | 国家电网公司 | A kind of insulated ladder being applied to power transmission tower |
| 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 |
| CN105322463A (en) * | 2015-11-19 | 2016-02-10 | 国家电网公司 | Insulated outlet extending horizontal ladder for tension string on ultra-high voltage transmission line |
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| CN108952553A (en) | 2018-12-07 |
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