CN203859441U - Closed clamp for replacing insulator - Google Patents
Closed clamp for replacing insulator Download PDFInfo
- Publication number
- CN203859441U CN203859441U CN201420227645.4U CN201420227645U CN203859441U CN 203859441 U CN203859441 U CN 203859441U CN 201420227645 U CN201420227645 U CN 201420227645U CN 203859441 U CN203859441 U CN 203859441U
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- CN
- China
- Prior art keywords
- upper cover
- main body
- jig
- clamp
- insulator
- 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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Abstract
The utility model discloses a closed clamp for replacing an insulator. The closed clamp includes a clamp main body which is connected with a screw tightening device, a clamp upper cover which is in matched split connection with the clamp main body; a half-body-of-revolution groove is formed at middle portions of the clamp main body and the clamp upper cover respectively; the half-body-of-revolution grooves can be combined with each other so as to form a body-of-revolution mold cavity for clamping the insulator; through holes are formed at two ends of the clamp upper cover; screws pass through the through holes and are fixed to the clamp main body; and one end of each screw protrudes out from the clamp upper cover and is provided with a fastening nut which enables the clamp upper cover to move up and down along the screw. According to the closed clamp of the utility model, the size of the body-of-revolution cavity can be adjusted, so that the closed clamp can be applied to insulators in a variety of different shapes, and therefore, the closed clamp has the advantages of high safety, portable convenience and multi-functional property.
Description
Technical field
The utility model relates to a kind of instrument of changing insulator for transmission line, is specifically related to a kind of closed type fixture of changing insulator.
Background technology
The wire of ultra-high-tension power transmission line is suspended on electric power line pole tower by insulator string mostly, insulator string is formed by the bulb of multi-disc suspension insulator and the steel cap serial connection with ball-and-socket, every insulator all has very high electric and mechanical strength, guaranteed the reliability service of transmission line, but after operation for many years, indivedual insulators can occur deteriorated and lose efficacy, and need change at any time.
For not because changing insulator by line outage, just need on ultra-high-tension power transmission line, carry out live line working, at circuit, by workman, a slice, deteriorated insulator does not take out from an insulator string under power-off condition, must use a kind of special mould clamp with tightening device is closed fixture, object is to make deteriorated insulator become relaxed state from stress, under relaxed state, the bulb of deteriorated insulator and steel cap could be thrown off from steel cap corresponding to adjacent insulator and bulb, it is taken out and changed from insulator string.
The work of changing now middle single-slice insulator be with the front card of closed fixture and after be installed on a slice above of the insulator being replaced and the insulator that is replaced after in a slice, after locking, with mechanical leading screw, tighten up, tension force is transferred on mechanical leading screw, the tension force of wire is transferred on mechanical leading screw, the insulator being replaced is lax, extract W or R pin, take out the insulator being replaced, then change intact insulator.Every kind of different insulator because jig requires and porcelain vase steel cap closely cooperates, just can reach the requirement of line stress, and reach certain coefficient of safety, so all will be joined a kind of close-fitting jig of steel cap with it.
Because insulator standard is not made clear and definite requirement to steel insulator pin cap shaped, particularly existing transmission line just has 330kV, 220kV, 110kV, 35kV and more high-grade, early stage line design and new line design difference are very large, insulator difference is also larger, in the work of the insulator of changing in reality, to changing the work of insulator, put to no little inconvenience, usually arrive working site discovering tool improper and cannot work, increased cost and staff's labour intensity.
Utility model content
The purpose of this utility model is, for above-mentioned defect of the prior art, to provide a kind of safe and portable, can be applicable to the closed type fixture of the replacing insulator of difformity insulator.
To achieve these goals, the technical solution adopted in the utility model is: comprise the jig main body being connected with leading screw tightening device, and the split that matches with jig main body is connected to the jig upper cover in jig main body, the middle part of jig main body and jig upper cover offers respectively half-body of revolution groove, combines the rotary body die cavity that is formed for holding insulator;
Through hole is offered at described jig upper cover two ends, and screw rod is fixed through through hole and jig main body, and the screw rod other end stretches out the installation of jig upper cover can make the clamp nut that on jig, cover rim screw rod moves up and down.
The both sides of described jig upper cover are two-stage ledge structure, and jig main body has the stepped recesses coordinating with it.
The both sides of described jig main body are along laterally offering the groove sliding before and after jig upper cover for preventing, jig upper cover has the boss coordinating with it.
Described screw rod is double threaded screw, offers adaptive with it screwed hole in jig main body, and one end of screw rod is arranged in the screwed hole of jig main body, and the other end stretches out jig upper cover clamp nut is installed.
Described jig main body and the outer surface of jig upper cover are arc, and the cambered surface afterbody of jig upper cover offers the breach that clamp nut is installed.
Described clamp nut outer surface is ledge structure, and inversion is arranged on screw rod.
Compared with prior art, the utility model is by spin-up that clamp nut is made progress, after opening rotary body die cavity, the adjacent insulator that is replaced insulator is put in rotary body die cavity, again clamp nut is rotated down and is locked, after locking, by leading screw tightening device, tension force is shifted, the insulator being replaced is relaxed, after taking-up, can change intact insulator.Because rotary body cavity dimension can be reconciled, so the utility model can be applicable to multiple difform insulator, realized safe and portable, one card for multiple uses.
Further, the utility model is connected jig upper cover by the ledge structure cooperatively interacting with jig main body, guaranteed to greatest extent the contact area with insulator, when jig upper cover is lifted to the highest position, rotary body die cavity is circular, and when jig upper cover pushes downwards, transverse width is constant, longitudinally highly reduce, thereby insulator is locked.
Further, the half-body of revolution groove both sides of the utility model by jig main body are along laterally offering groove, the boss that the setting of jig upper cover coordinates with it, prevent leading screw tightener in tightening process because sliding in the stressed excessive front and back of jig upper cover of causing.
Further, the cambered surface afterbody of the utility model jig upper cover is offered breach, avoids cambered surface in fastening process, to cause obstacle to clamp nut, causes fastening not firm.
Further, clamp nut outer surface of the present utility model is ledge structure, and is inverted and is arranged on screw rod, can effectively avoid nut in rotary course, to encounter the cambered surface of jig upper cover, causes fastening not firm.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
Fig. 2 half sectional view of the present utility model;
The vertical view of Fig. 3 the utility model jig main body;
The vertical view of Fig. 4 the utility model jig upper cover;
The cutaway view of Fig. 5 the utility model clamp nut;
In accompanying drawing: 1. jig main body; 2. jig upper cover; 3. screw rod; 4. clamp nut.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, the utility model comprises the jig main body 1 being connected with leading screw tightening device, and the split that matches with jig main body 1 is connected to the jig upper cover 2 in jig main body 1, jig main body 1 offers respectively half-body of revolution groove with the middle part of jig upper cover 2, combines the rotary body die cavity that is formed for holding insulator; Through hole is offered at jig upper cover 2 two ends, screw rod 3 is fixing through through hole and jig main body 1, the other end of screw rod 3 stretches out jig upper cover 2 clamp nut 4 that can make jig upper cover 2 move up and down along screw rod 3 is installed, wherein screw rod 3 is double threaded screw, in jig main body 1, offer adaptive with it screwed hole, one end of screw rod 3 is arranged in the screwed hole of jig main body 1, and the other end stretches out jig upper cover 2 clamp nut 4 is installed; Jig main body 1 is arc with the outer surface of jig upper cover 2, and the cambered surface afterbody of jig upper cover 2 offers the breach that clamp nut 4 is installed.
Referring to Fig. 2,3,4, the half-body of revolution groove both sides of the utility model jig upper cover 2 are two-stage ledge structure, jig main body 1 has the stepped recesses coordinating with it; And the half-body of revolution groove both sides of jig main body 1 are along the groove laterally offering for preventing that jig upper cover 2 front and back from sliding, and jig upper cover 2 has the boss coordinating with it.
Referring to Fig. 5, clamp nut 4 outer surfaces of the present utility model are ledge structure, and inversion is arranged on screw rod 3.
The utility model is by spin-up that clamp nut is made progress, after opening rotary body die cavity, the adjacent insulator that is replaced insulator is put in rotary body die cavity, again clamp nut is rotated down and is locked, after locking, by leading screw tightening device, tension force is shifted, the insulator being replaced is relaxed, after taking-up, can change intact insulator.Because rotary body cavity dimension can be reconciled, so the utility model can be applicable to multiple difform insulator, realized safe and portable, one card for multiple uses.
Claims (6)
1. a closed type fixture of changing insulator, it is characterized in that: comprise the jig main body (1) being connected with leading screw tightening device, and the split that matches with jig main body (1) is connected to the jig upper cover (2) in jig main body (1), jig main body (1) offers respectively half-body of revolution groove with the middle part of jig upper cover (2), combines the rotary body die cavity that is formed for holding insulator;
Through hole is offered at described jig upper cover (2) two ends, screw rod (3) is fixing through through hole and jig main body (1), and screw rod (3) other end stretches out jig upper cover (2) clamp nut (4) that can make jig upper cover (2) move up and down along screw rod (3) is installed.
2. the closed type fixture of replacing insulator according to claim 1, is characterized in that: the both sides of described jig upper cover (2) are two-stage ledge structure, and jig main body (1) has the stepped recesses coordinating with it.
3. the closed type fixture of replacing insulator according to claim 1 and 2, it is characterized in that: the both sides of described jig main body (1) are along laterally offering the groove sliding before and after jig upper cover (2) for preventing, jig upper cover (2) has the boss coordinating with it.
4. the closed type fixture of replacing insulator according to claim 1, it is characterized in that: described screw rod (3) is double threaded screw, in jig main body (1), offer adaptive with it screwed hole, one end of screw rod (3) is arranged in the screwed hole of jig main body (1), and the other end stretches out jig upper cover (2) clamp nut (4) is installed.
5. the closed type fixture of replacing insulator according to claim 1, it is characterized in that: described jig main body (1) is arc with the outer surface of jig upper cover (2), the cambered surface afterbody of jig upper cover (2) offers the breach that clamp nut (4) is installed.
6. the closed type fixture of replacing insulator according to claim 5, is characterized in that: described clamp nut (4) outer surface is ledge structure, and inversion is arranged on screw rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227645.4U CN203859441U (en) | 2014-05-05 | 2014-05-05 | Closed clamp for replacing insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227645.4U CN203859441U (en) | 2014-05-05 | 2014-05-05 | Closed clamp for replacing insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859441U true CN203859441U (en) | 2014-10-01 |
Family
ID=51609279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227645.4U Expired - Fee Related CN203859441U (en) | 2014-05-05 | 2014-05-05 | Closed clamp for replacing insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859441U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836161A (en) * | 2015-05-18 | 2015-08-12 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hanger frame of fixed-steering pulley |
| CN106992465A (en) * | 2017-04-24 | 2017-07-28 | 国网北京市电力公司 | Insulator protector and insulator replacement equipment |
| CN107069559A (en) * | 2017-06-15 | 2017-08-18 | 如皋市同泰电力器材有限公司 | A kind of composite insulator metal universal fixture |
| CN108462110A (en) * | 2018-04-17 | 2018-08-28 | 王斌 | The insulator replacement fixture of more size fits |
| CN112242664A (en) * | 2020-09-23 | 2021-01-19 | 深圳供电局有限公司 | Insulator replacement tool |
| CN113782283A (en) * | 2021-08-30 | 2021-12-10 | 中国南方电网有限责任公司超高压输电公司昆明局 | Steel cap assembling and disassembling device and auxiliary assembly thereof |
-
2014
- 2014-05-05 CN CN201420227645.4U patent/CN203859441U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836161A (en) * | 2015-05-18 | 2015-08-12 | 中国南方电网有限责任公司超高压输电公司昆明局 | Hanger frame of fixed-steering pulley |
| CN106992465A (en) * | 2017-04-24 | 2017-07-28 | 国网北京市电力公司 | Insulator protector and insulator replacement equipment |
| CN107069559A (en) * | 2017-06-15 | 2017-08-18 | 如皋市同泰电力器材有限公司 | A kind of composite insulator metal universal fixture |
| CN107069559B (en) * | 2017-06-15 | 2019-02-05 | 如皋市同泰电力器材有限公司 | A kind of composite insulator metal universal fixture |
| CN108462110A (en) * | 2018-04-17 | 2018-08-28 | 王斌 | The insulator replacement fixture of more size fits |
| CN112242664A (en) * | 2020-09-23 | 2021-01-19 | 深圳供电局有限公司 | Insulator replacement tool |
| CN113782283A (en) * | 2021-08-30 | 2021-12-10 | 中国南方电网有限责任公司超高压输电公司昆明局 | Steel cap assembling and disassembling device and auxiliary assembly thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 |