CN203747302U - Clamping fixture for live-line replacement of dead-end insulator string by use of ground potential method - Google Patents
Clamping fixture for live-line replacement of dead-end insulator string by use of ground potential method Download PDFInfo
- Publication number
- CN203747302U CN203747302U CN201420106488.1U CN201420106488U CN203747302U CN 203747302 U CN203747302 U CN 203747302U CN 201420106488 U CN201420106488 U CN 201420106488U CN 203747302 U CN203747302 U CN 203747302U
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- Prior art keywords
- yoke plate
- link plate
- clamping fixture
- potential method
- mount pad
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- 239000012212 insulator Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009413 insulation Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000012211 strain insulator Substances 0.000 description 1
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- Electric Cable Installation (AREA)
Abstract
Disclosed is a clamping fixture for live-line replacement of a dead-end insulator string by use of a ground potential method. The clamping fixture comprises a left link plate clamping fixture and a right link plate clamping fixture which are respectively used for connection with link plates at two ends. The left link plate clamping fixture and the right link plate clamping fixture each are composed of an installation seat, a pulley block installed on the installation seat, and a group of link plate clamp connectors detachably connected with the installation seat. The left link plate clamping fixture and the right link plate clamping fixture are connected through a high-strength rope wound between the two pulley blocks; one end of the high-strength rope is fixed on one link plate clamping fixture; and the other end is an operation free end. According to the utility model, the operation is simple and rapid, the work intensity of operation personnel can be reduced, the work efficiency is improved, the work time is reduced, the applicability is good, operation can be efficiently and safely finished under the condition that the safety of the operation personnel is guaranteed, the safe operation of a power network is ensured, the power failure and power supply operation amount and the change of the operation mode of the whole power network are reduced, the operation safety and reliability of the power network are greatly improved, and there are remarkable economic benefits.
Description
Technical field
The utility model relates to electrical network and hot line maintenance technical field, particularly a kind of earth potential method charged changing tension-resisting insulator jig.
Background technology
Along with socioeconomic development, society is increasing for the demand of electric power, impel electrical network scale constantly to expand, overhead wire transmission is as the main body mode of electric power conveying at present, line size constantly increases thereupon, wire type also strengthens thereupon, and various gold utensils are various, synthetic insulator length differs, and originally used operation jig can not meet current diversified job requirements.Once cannot process if charged, will need the more power failure operation time, that will cause huge economic loss and social effect.In order to alleviate this type of contradiction, be badly in need of a class and can adapt to different work demand, the light instrument of carrying out live line working.
There is some problems in charged changing tension-resisting insulator at present.Along with requiring improving constantly of transmission capacity, the line conductor model of operation is all greater than early stage wire type in recent years; The yoke plate that early stage circuit uses mostly is triangle yoke plate, and present yoke plate has four jiao of two hole, four jiao of four hole, four jiaos of elliptical aperture equal-specifications; The thickness of existing gold utensil is more diversified, is not quite similar from the thickness of 12mm～24mm.The model of line hardware, yoke plate and the wire putting into operation is for many years all much larger than early stage circuit, and therefore, the operation jig of replacing strain insulator originally can not meet the requirement that present line insulator is changed, and many operations cannot be carried out.Meanwhile, when equal potential working, conventional personnel's equipotential method, due to the cause of space length deficiency, is used old jig cannot be applicable to current novel shaft tower.
Utility model content
Main purpose of the present utility model is the shortcoming that overcomes prior art, provides a kind of simple and quick, can reduce operating personnel's working strength, increase work efficiency, and applicability is good, and safe and reliable earth potential method charged changing tension-resisting insulator jig.
The utility model adopts following technical scheme:
Earth potential method charged changing tension-resisting insulator jig, include left and right two link plate clamping tools that are respectively used to connect two ends yoke plate, left and right link plate clamping tool by a mount pad, be installed on an assembly pulley on mount pad and one group of yoke plate clamp joint being removably connected on mount pad forms, left and right two link plate clamping tools connect by the high strength cord being wound between two assembly pulleys, high strength cord one end is fixed on a link plate clamping tool, and the other end is as operating free end.
Further, also include one and be fixed on cross-arm for changing action direction to realize the insulation fixed pulley of terrestrial operation, the operating free end of described high strength cord is walked around this insulation fixed pulley.
Further, described yoke plate clamp joint one end offers connecting hole for connection seat, and the other end forms can be folded in yoke plate double plate structure therebetween, and every group of yoke plate clamp joint includes the plurality of specifications that can coordinate with different model yoke plate.
Further, on two clamping plate of described yoke plate clamp joint, offer and the pin-and-hole that on yoke plate, intrinsic fixing hole matches, can yoke plate clamp joint and yoke plate be locked by movable latch.
Further, between described pin-and-hole and movable latch, be formed with the self-locking mechanism cooperatively interacting, in described pin-and-hole, be provided with a circular protrusions, be formed with a L shaped guide groove matching with described circular protrusions in movable latch, circular protrusions can just also can be walked along L shaped guide groove by L shaped guide groove.
Further, described mount pad one end forms can be placed in yoke plate clamp connector clamp double plate structure therebetween, on two clamping plate, offers connecting hole, can mount pad be fixedly connected with yoke plate clamp joint by securing member; The mount pad other end arranges perpendicular to yoke plate direction, and upper/lower terminal is formed for installing the double plate structure of assembly pulley, and upper/lower terminal is respectively provided with a pulley by a bearing pin.
Further, on described mount pad, also offer the rope fixing hole for fixing high strength cord one end.
To description of the present utility model, compared with prior art, the utlity model has following beneficial effect from above-mentioned:
1. install between each parts and all adopt and removably connect, can realize disassembled for transport, assembling use, convenient and practical;
2. link plate clamping tool is removably connected and is formed by mount pad and yoke plate clamp joint, can select according to the yoke plate of different model the yoke plate clamp joint of different size.Go to while carrying out operation compared with complex environment, only need carry a set of jig, and carry corresponding yoke plate clamp joint according to required yoke plate model, more portable, time saving and energy saving;
3. left and right link plate clamping tool is connected by assembly pulley and high strength cord, application movable pulley principle can reduce the manipulation strength of stringing lead, and rope is not subject to spatial limitation, greatly increase the flexibility of instrument installation length, widen the scope of application of instrument, made it to be suitable for the replacing insulator live line working of various different lengths.In addition, utilize insulation fixed pulley, the operation of stringing lead is transferred to ground from high-altitude, can improve operating efficiency, reduce security risk;
4. between pin-and-hole and movable latch, be formed with the self-locking mechanism cooperatively interacting, design ingeniously, use simple and conveniently, and can effectively lock;
In a word, the utility model is simple and quick, can reduce operating personnel's working strength, increase work efficiency, reduce the activity duration, and applicability is good, can under the prerequisite that ensures operating personnel's safety, fulfil assignment efficiently and safely, both ensure the safe operation of electrical network, can reduce the change that stops power transmission operational ton and whole power system operating mode simultaneously, greatly improve safe operation of electric network reliability, and there is significant economic benefit.
Brief description of the drawings
Fig. 1 is the mounting structure end view of the utility model embodiment;
Fig. 2 is link plate clamping tool and the yoke plate syndeton vertical view of the utility model embodiment;
Fig. 3 is the side-looking structure chart of the link plate clamping tool of the utility model embodiment;
Fig. 4 is the structural representation of the self-locking mechanism of the utility model embodiment.
In figure: 1. yoke plate, 2. left link plate clamping tool, 3. right link plate clamping tool, 4. mount pad, 5. yoke plate clamp joint, 6. high strength cord, 7. insulation fixed pulley, 8. pin-and-hole, 80. circular protrusions, 9. movable latch, 90.L shape guide groove, 10. bearing pin, 11. pulleys, 12. rope fixing holes.
Embodiment
Below by embodiment, the utility model will be further described.
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of earth potential method charged changing tension-resisting insulator jig of the present utility model, include the left link plate clamping tool 2 and the right link plate clamping tool 3 that are respectively used to connect two ends yoke plate 1, left link plate clamping tool 2 and right link plate clamping tool 3 are by a mount pad 4, the assembly pulley and the one group of yoke plate clamp joint 5 being removably connected on mount pad 4 that are installed on mount pad 4 form, left link plate clamping tool 2 and right link plate clamping tool 3 connect by the high strength cord 6 being wound between two assembly pulleys, high strength cord 6 one end are fixed on a link plate clamping tool, the other end is as operating free end.Also include one and be fixed on cross-arm for changing action direction to realize the insulation fixed pulley 7 of terrestrial operation, the operating free end of described high strength cord 6 is walked around this insulation fixed pulley 7.
Described yoke plate clamp joint 5 one end offer connecting hole for connection seat 4, and the other end forms can be folded in yoke plate 1 double plate structure therebetween, and every group of yoke plate clamp joint 5 includes the plurality of specifications that can coordinate with different model yoke plate 1.On two clamping plate of described yoke plate clamp joint 5, offer the pin-and-hole 8 matching with intrinsic fixing hole on yoke plate 1, can yoke plate clamp joint 5 and yoke plate 1 be locked by movable latch 9.
Described mount pad 4 one end form and yoke plate clamp joint 5 can be folded in to double plate structure therebetween, on two clamping plate, offer connecting hole, can mount pad 4 be fixedly connected with yoke plate clamp joint 5 by securing member; Mount pad 4 other ends are perpendicular to yoke plate 1 direction setting, and upper/lower terminal is formed for installing the double plate structure of assembly pulley, and upper/lower terminal is respectively provided with a pulley 11 by a bearing pin 10.On described mount pad 4, also offer the rope fixing hole 12 for fixing high strength cord 6 one end.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, between described pin-and-hole 8 and movable latch 9, be formed with the self-locking mechanism cooperatively interacting, in described pin-and-hole 8, be provided with a circular protrusions 80, in movable latch 9, be formed with a L shaped guide groove 90 matching with described circular protrusions 80, circular protrusions 80 can just also can be walked along L shaped guide groove 90 by L shaped guide groove 90.Movable latch 9 is pushed to rotate to be and lock, L shaped guide groove 90 is completed and is locked by the walking of circular protrusions 80; Otherwise, by movable latch 9 rotation extract be out of stock.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, when the utility model carries out the operation of earth potential method charged for replacement 220KV insulator string, comprise the following steps:
1. assemble jig; Yoke plate clamp joint 5 according to the yoke plate 1 model selection of operation with this yoke plate 1 adaptation, and assemble left and right link plate clamping tool;
2. jig is installed between two ends yoke plate 1; Left and right link plate clamping tool is connected on two ends yoke plate 1, and high strength cord 6 is set around between two assembly pulleys of left and right link plate clamping tool, and walk around insulation fixed pulley 7;
3. tighten up assembly pulley, unclamp insulator string; By tension high strength cord 6 operating free end to tighten up assembly pulley, make wire in tightening up state, then unclamp insulator string;
4. change insulator string, and recover assembly pulley, remove jig; Change after insulator string, unclamped high strength cord 6, can recover assembly pulley, then removed the utility model jig, completed the operation of earth potential method hot-line insulator string replacement.
Above are only an embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection range.
Claims (7)
1. earth potential method charged changing tension-resisting insulator jig, it is characterized in that: include left and right two link plate clamping tools that are respectively used to connect two ends yoke plate, left and right link plate clamping tool by a mount pad, be installed on an assembly pulley on mount pad and one group of yoke plate clamp joint being removably connected on mount pad forms, left and right two link plate clamping tools connect by the high strength cord being wound between two assembly pulleys, high strength cord one end is fixed on a link plate clamping tool, and the other end is as operating free end.
2. earth potential method charged changing tension-resisting insulator jig as claimed in claim 1, it is characterized in that: also include one and be fixed on cross-arm for changing action direction to realize the insulation fixed pulley of terrestrial operation, the operating free end of described high strength cord is walked around this insulation fixed pulley.
3. earth potential method charged changing tension-resisting insulator jig as claimed in claim 1, it is characterized in that: described yoke plate clamp joint one end offers connecting hole for connection seat, the other end forms can be folded in yoke plate double plate structure therebetween, and every group of yoke plate clamp joint includes the plurality of specifications that can coordinate with different model yoke plate.
4. earth potential method charged changing tension-resisting insulator jig as claimed in claim 3, it is characterized in that: on two clamping plate of described yoke plate clamp joint, offer and the pin-and-hole that on yoke plate, intrinsic fixing hole matches, can yoke plate clamp joint and yoke plate be locked by movable latch.
5. earth potential method charged changing tension-resisting insulator jig as claimed in claim 4, it is characterized in that: between described pin-and-hole and movable latch, be formed with the self-locking mechanism cooperatively interacting, in described pin-and-hole, be provided with a circular protrusions, in movable latch, be formed with a L shaped guide groove matching with described circular protrusions, circular protrusions can just also can be walked along L shaped guide groove by L shaped guide groove.
6. earth potential method charged changing tension-resisting insulator jig as claimed in claim 3, it is characterized in that: described mount pad one end forms can be placed in yoke plate clamp connector clamp double plate structure therebetween, on two clamping plate, offer connecting hole, can mount pad be fixedly connected with yoke plate clamp joint by securing member; The mount pad other end arranges perpendicular to yoke plate direction, and upper/lower terminal is formed for installing the double plate structure of assembly pulley, and upper/lower terminal is respectively provided with a pulley by a bearing pin.
7. earth potential method charged changing tension-resisting insulator jig as claimed in claim 6, is characterized in that: on described mount pad, also offer the rope fixing hole for fixing high strength cord one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106488.1U CN203747302U (en) | 2014-03-10 | 2014-03-10 | Clamping fixture for live-line replacement of dead-end insulator string by use of ground potential method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106488.1U CN203747302U (en) | 2014-03-10 | 2014-03-10 | Clamping fixture for live-line replacement of dead-end insulator string by use of ground potential method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747302U true CN203747302U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106488.1U Expired - Lifetime CN203747302U (en) | 2014-03-10 | 2014-03-10 | Clamping fixture for live-line replacement of dead-end insulator string by use of ground potential method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872621A (en) * | 2014-03-10 | 2014-06-18 | 国家电网公司 | Fixture for replacing strain insulator string under electrified state based on earth potential method and operation method |
-
2014
- 2014-03-10 CN CN201420106488.1U patent/CN203747302U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872621A (en) * | 2014-03-10 | 2014-06-18 | 国家电网公司 | Fixture for replacing strain insulator string under electrified state based on earth potential method and operation method |
| CN103872621B (en) * | 2014-03-10 | 2016-08-24 | 国家电网公司 | A kind of earth potential method charged changing tension-resisting insulator fixture and operational method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |