CN202797771U - Insulator holder used for replacing linear string insulators in 220kv alternating current power transmission line - Google Patents
Insulator holder used for replacing linear string insulators in 220kv alternating current power transmission line Download PDFInfo
- Publication number
- CN202797771U CN202797771U CN 201220494176 CN201220494176U CN202797771U CN 202797771 U CN202797771 U CN 202797771U CN 201220494176 CN201220494176 CN 201220494176 CN 201220494176 U CN201220494176 U CN 201220494176U CN 202797771 U CN202797771 U CN 202797771U
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- insulator
- insulators
- transmission line
- power transmission
- operation rod
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- Expired - Fee Related
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Abstract
The utility model discloses an insulator holder used for replacing linear string insulators in a 220kv alternating current power transmission line. The insulator holder comprises an insulation operation rod (1). A C-shaped metal piece (2) is connected onto one end portion of the insulation operation rod (1). Due to the fact that the C-shaped metal block is connected onto the insulation operation rod, operators utilize the operation rod to sleeve the insulator holder between a first insulator and a second insulator on the wire side, and then pull the insulators to enable the insulators to deviate from a socket according to the socket direction of the insulators and achieve the aim of replacing the insulators in ground potential accordingly. Simultaneously, the operation device has the advantages of being low in cost, easy to carry and convenient to operate. Due to the fact that the socket large opening direction of the insulator is not fixed, the circular shape ensures operability in all directions. The simple testing device does not have the problems of failure or damage, is higher in reliability and can further improve safety guarantee of workers and operation of the power transmission line.
Description
Technical field
The utility model relates to a kind of bottle supporting hook of changing the linear string insulator for the 220kv transmission line of alternation current.
Background technology
For guaranteeing that the transmission line in the electrical network normally moves, need that transmission line is carried out hotline maintenance and safeguard, live line working is the effective measures of avoiding overhauling power failure, guaranteeing normal power supply.Live line working is divided into three kinds of earth potential, intermediate potential and equipotentials.Earth potential is that human body need not enter electrified body, uses action bars to carry out defect processing.In the live line working that electrical network is carried out, generally adopt at present the equal potential working method; transmission line uses equal potential working to have following shortcoming: first; Guizhou is located in the mountain area; general overhead line structures are in during lofty mountains and steep hills; the hill path is precipitous distant; each live line working all need be carried a large amount of Work tools and protective articles, and uses the earth potential working method just can be with less necessary insulated flexible ladder, insulating ladder head, the insulation protection rope of getting of institute in the equal potential working method, just can finish the charged for replacement operation.Second, the screening clothing underpants that the live line working staff dresses, trousers, footwear, connection between the gloves is to connect with bolt, if staff's labour intensity in electric field is excessive, may make the bolt of each tie point produce loosening or come off, like this to personal safety, the safe operation meeting of grid equipment produces greatly harm, the 3rd, equal potential working diminishes the electrical equipment distance of electrified body, make electric field that deformity occur, operating risk is larger, the 4th, equal potential working can not evacuate to the safety zone because the people will enter on the wire fast in case run into the change in weather operating personnel.Therefore for 220kv transmission line electrified replacing linear insulator string, except using conventional equal potential working method, can also change with the earth potential working method.
Summary of the invention
The technical problems to be solved in the utility model is: the bottle supporting hook of low, simple in structure, the easy to operate charged for replacement 220kv transmission line linear string insulator of a kind of cost is provided, can overcomes the deficiency of existing equal potential working method.
The technical solution of the utility model: be used for the bottle supporting hook that the linear string insulator is changed in the 220kv transmission line of alternation current, it comprises insulating bar, is connected with the metalwork of C shape in the end of insulating bar.
Metalwork C shape is provided with shank, is connected with the plum blossom joint at shank, and insulating bar is connected with the plum blossom joint.
The plum blossom joint is welded on the shank.
Compared with the prior art, operand of the present utility model is to climb the operating personnel who operates to the electric power line pole tower, for the realization earth potential is changed bunch of insulator, just must break away from the bowl head with the insulator of insulating tool with side of wire was, can take out insulator string.According to this principle, the utility model connects the metal derby of C shape at insulating bar, the staff when operation with the place of wire balance with action bars with this tool cover in the middle of side of wire was first and second insulator, then according to an insulator bowl direction pulling insulator insulator is pulled out a bowl head, thereby reach the purpose of earth potential replacement insulator.This operating means also has low, portable, the easy to operate advantage of cost simultaneously.Choice for use circular arc is because the large mouthful direction of bowl head of insulator is unfixing, all has operability with each orientation of circular arc.Can there be problem malfunctioning or that damage in this Simplified Test Equipment, and reliability is higher, can further improve the safety guarantee of staff and transmission line operation.
Figure of description
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment: as shown in Figure 1, the metalwork 2 of C shape is the instrument of clamping insulator, is provided with shank 3 at the metalwork 2 of C shape, is welded with plum blossom joint 4 at shank 3, and insulating bar 1 is connected with plum blossom joint 4.
The staff is at hand-held insulating bar 1 of when operation, and the metalwork 2 of C shape is enclosed within the middle of side of wire was first and second insulator, then according to an insulator bowl direction pulling insulator insulator pulled out a bowl head, thereby reaches the purpose of replacing insulator.
Claims (3)
1. one kind is used for the bottle supporting hook that the linear string insulator is changed in the 220kv transmission line of alternation current, and it comprises insulating bar (1), it is characterized in that: the metalwork (2) that is connected with C shape in the end of insulating bar (1).
2. the bottle supporting hook of changing the linear string insulator for the 220kv transmission line of alternation current according to claim 1, it is characterized in that: the metalwork (2) C shape is provided with shank (3), be connected with plum blossom joint (4) at shank (3), insulating bar (1) is connected with plum blossom joint (4).
3. according to claim 1ly change the bottle supporting hook of linear string insulator for the 220kv transmission line of alternation current, it is characterized in that: plum blossom joint (4) is welded on the shank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494176 CN202797771U (en) | 2012-09-26 | 2012-09-26 | Insulator holder used for replacing linear string insulators in 220kv alternating current power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494176 CN202797771U (en) | 2012-09-26 | 2012-09-26 | Insulator holder used for replacing linear string insulators in 220kv alternating current power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797771U true CN202797771U (en) | 2013-03-13 |
Family
ID=47824952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494176 Expired - Fee Related CN202797771U (en) | 2012-09-26 | 2012-09-26 | Insulator holder used for replacing linear string insulators in 220kv alternating current power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797771U (en) |
-
2012
- 2012-09-26 CN CN 201220494176 patent/CN202797771U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |