CN202797770U - Pin taking device used for replacing string insulators of 220Kv alternating current power transmission line - Google Patents
Pin taking device used for replacing string insulators of 220Kv alternating current power transmission line Download PDFInfo
- Publication number
- CN202797770U CN202797770U CN 201220494168 CN201220494168U CN202797770U CN 202797770 U CN202797770 U CN 202797770U CN 201220494168 CN201220494168 CN 201220494168 CN 201220494168 U CN201220494168 U CN 201220494168U CN 202797770 U CN202797770 U CN 202797770U
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- pin
- insulator
- taking device
- transmission line
- socket
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- Expired - Fee Related
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Abstract
The utility model discloses a pin taking device used for replacing string insulators of a 220Kv alternating current power transmission line. The pin taking device comprises an insulation operation rod (1). A sickle-shaped metal piece (2) is connected with one end of the insulation operation rod (1). A turning-shape (sickle-shaped) metal block is connected with the insulation operation rod. In operation, workers place down the pin taking device by the operation rod from a cross arm to be aligned at an M pin or an R pin connecting an insulator on the wire side and a socket and then utilize a small hammer to slightly hit the back side of the pin taking device, namely, a pin is retreated from the socket. Simultaneously, a bottle support device enables the insulator to deviate from the socket to achieve the aim of replacing the insulator in ground potential. The operation device has the advantages of being low in cost, easy to carry and convenient to operate. Due to the fact that the large opening direction of the socket of the insulator is not fixed, the turning shape ensures operability in all directions.
Description
Technical field
The utility model relates to a kind of for the live line working of 220kv transmission line of alternation current, uses the earth potential operation to change the simple and easy split-pin device of linear string insulator.
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; use action bars to carry out defect processing; in the live line working that 220kv track replacement insulator is carried out, generally adopt at present the equal potential working method to take out the pin of side of wire was bowl head and insulator junction; 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 use the earth potential working method just can be with less the necessary insulated flexible ladder that gets of institute in the equal potential working method; the insulating ladder head; the insulation protection rope just can be finished 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: provide a kind of cost low, simple in structure, the easy to operate split-pin device that is used for 220kv transmission line of alternation current replacing insulator string, can overcome the deficiency of existing equal potential working method.
The technical solution of the utility model: be used for the split-pin device that insulator string is changed in the 220kv transmission line of alternation current, it comprises insulating bar, is connected with the metalwork of sickle at an end of insulating bar.
Metalwork at sickle is connected with the plum blossom joint, and insulating bar is connected on the plum blossom joint.
The plum blossom joint is welded on the metalwork of sickle.
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 cross-arm, operating principle is for will change bunch of insulator, must take off the insulator and a bowl pin that is connected of side of wire was, can take out insulator string, for finishing above-mentioned work, the utility model is to connect curved Abduction shape (sickle) metal derby at insulating bar, the staff puts down aligning side of wire was insulator and a bowl M who an is connected pin or R pin with action bars with this instrument from cross-arm when operation, then use this instrument rear side of hand hammer chucked, namely pin is withdrawed from from the bowl head, then with the bottle supporting device 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.The curved Abduction shape of choice for use (sickle) is that each orientation of curved Abduction shape all has operability because the large mouthful direction of bowl head of insulator is unfixing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment, as shown in Figure 1, bending formed after the metalwork 2 of the sickle that pin is withdrawed from from the bowl head adopted the steel cutting, metalwork 2 at sickle is welded with plum blossom joint 3, end at insulating bar 1 is provided with the joint that mates with plum blossom joint 3, uses front insulating bar 1 is connected on the plum blossom joint 3 can finish splicing.
The staff is at the hand-held insulating bar 1 of cross-arm during use, make the end alignment side of wire was insulator and the bowl M that an is connected pin or R pin of the metalwork 2 of sickle, then use the flex point place of the metalwork 2 of hand hammer chucked sickle, namely pin is withdrawed from from the bowl head, then with the bottle supporting device insulator is pulled out a bowl head, thereby reach the purpose of earth potential replacement insulator.
Claims (3)
1. one kind is used for the split-pin device that insulator string 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 sickle at an end of insulating bar (1).
2. according to claim 1ly change the split-pin device of insulator string for the 220kv transmission line of alternation current, it is characterized in that: the metalwork (2) at sickle is connected with plum blossom joint (3), and insulating bar (1) is connected on the plum blossom joint (3).
3. according to claim 2ly change the split-pin device of insulator string for the 220kv transmission line of alternation current, it is characterized in that: plum blossom joint (3) is welded on the metalwork (2) of sickle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494168 CN202797770U (en) | 2012-09-26 | 2012-09-26 | Pin taking device used for replacing string insulators of 220Kv alternating current power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220494168 CN202797770U (en) | 2012-09-26 | 2012-09-26 | Pin taking device used for replacing string insulators of 220Kv alternating current power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797770U true CN202797770U (en) | 2013-03-13 |
Family
ID=47824951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220494168 Expired - Fee Related CN202797770U (en) | 2012-09-26 | 2012-09-26 | Pin taking device used for replacing string insulators of 220Kv alternating current power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797770U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826870A (en) * | 2016-06-08 | 2016-08-03 | 国网辽宁省电力有限公司电力科学研究院 | Wedge-shaped diversion line ground potential live installation combination tool |
| CN111313319A (en) * | 2020-02-18 | 2020-06-19 | 国网上海市电力公司 | Jumper string ball head resetting device for 220kV live working |
-
2012
- 2012-09-26 CN CN 201220494168 patent/CN202797770U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826870A (en) * | 2016-06-08 | 2016-08-03 | 国网辽宁省电力有限公司电力科学研究院 | Wedge-shaped diversion line ground potential live installation combination tool |
| CN111313319A (en) * | 2020-02-18 | 2020-06-19 | 国网上海市电力公司 | Jumper string ball head resetting device for 220kV live working |
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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 |