CN203911336U - Multifunctional closed clamp for changing insulators on power transmission line - Google Patents
Multifunctional closed clamp for changing insulators on power transmission line Download PDFInfo
- Publication number
- CN203911336U CN203911336U CN201420197867.6U CN201420197867U CN203911336U CN 203911336 U CN203911336 U CN 203911336U CN 201420197867 U CN201420197867 U CN 201420197867U CN 203911336 U CN203911336 U CN 203911336U
- Authority
- CN
- China
- Prior art keywords
- card
- clamp
- insulator
- core
- main body
- 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
Links
Landscapes
- Insulating Bodies (AREA)
Abstract
A multifunctional closed clamp for changing insulators on a power transmission line comprises a front clamp, a back clamp and two lead screw tighteners. Two ends of each of the two lead screw tighteners are respectively fixed with the ends of the front clamp and the back clamp. The front clamp and the back clamp have same structures. The front clamp and the back clamp respectively comprise a clamp body, and an on-clamp cover which cooperates with the clamp body and is connected with the clamp body in a split manner. The middle parts of the clamp body and the on-clamp cover are respectively provided with a semi-rotator groove. The semi-rotator grooves are combined for forming a rotator chamber for clamping a clamp core. The clamp core is divided into two symmetrical parts along a diameter. The outer peripheral surface of the rotator which is composed of the two parts is adapted with the rotor chamber. The inner chamber is adapted with the surface shape of an insulator. A clearance for clamping the insulator is reserved between two partial opposite end surfaces of the clamp core. The multifunctional closed clamp provided by the utility model has advantages of: simple structure, convenient use, high safety and high reliability. Furthermore the multifunctional closed clamp can be adapted for insulators with different shapes.
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 multi-functional closed fixture of changing insulator for transmission line.
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 to overcome above-mentioned defect of the prior art, provides a kind of simple in structure, easy to use, safe and reliable, and the transmission line that is applicable to difformity insulator is changed the multi-functional closed fixture of insulator.
In order to achieve the above object, the technical solution adopted in the utility model is: comprise front card, rear card and two leading screw tighteners, the two ends of two leading screw tighteners are fixed with the end of front card and rear card respectively;
Described front card, rear card structure are identical, include card main body and be connected to the card upper cover in card main body with the split that matches of card main body, card main body offers respectively half-body of revolution groove with the middle part of card upper cover, combines the rotary body die cavity that is formed for holding the core of the card;
Described the core of the card is divided into symmetrical two parts along diameter, rotary body outer peripheral face dimerous and rotary body die cavity are suitable, the surface configuration of internal cavities and insulator is suitable, between the relative end face of the core of the card two parts, leaves for clamping the gap of insulator.
On two described leading screw tighteners, be all connected with manual lever.
Described card upper cover one end is connected with card subject activity by the first bearing pin, the other end is provided with " U " shape gap, in card main body, by the second bearing pin, be connected with the T-bolt that can snap in card upper cover " U " shape gap, and the supporting band pad nut being provided with for locking clamp upper cover on T-bolt.
On the half-body of revolution groove inwall of the described card main body that is combined into rotary body die cavity and card upper cover, be also provided with the groove of annular, and the rotary body outer peripheral face of the core of the card is provided with the annular steps suitable with the groove of this annular.
Compared with prior art, the utility model is by being contained in front card and rear card respectively on the adjacent insulator that is replaced insulator, after locking, with leading screw tightener, tighten up, tension force is transferred on leading screw tightener, the insulator being replaced is relaxed, after taking-up, can change intact insulator, owing to having increased dimeric the core of the card, by changing different the core of the cards, can be applicable to difform insulator, thereby realized one card for multiple uses, the utility model is simple in structure, easy to use, and safe and portable.
Further, the utility model is because card upper cover is provided with " U " shape gap, during assembling, by the first bearing pin, one end of card upper cover is connected with card subject activity, and the T-bolt being movably connected in by the second bearing pin in card main body is pulled to " U " shape gap, screw band pad nut and can make the upper cover locking of card, unclamp band pad nut and can make T-bolt unclamp, unclamp rear card upper cover and can rotate and upwardly open around the first bearing pin, use convenient.
Further, the utility model is owing to being combined into the groove that is also provided with annular on the card main body of rotary body die cavity and the half-body of revolution groove inwall of card upper cover, and the rotary body outer peripheral face of the core of the card is provided with the annular steps suitable with the groove of this annular, and then the installation that has guaranteed the core of the card is more firm, it is more accurate to locate.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
The structural front view of the front card of Fig. 2 and rear card;
The structure vertical view of the front card of Fig. 3 and rear card;
The structural representation of single-piece after Fig. 4 the core of the card amplifies;
The structural representation of combination after Fig. 5 the core of the card amplifies;
In accompanying drawing: 1. block main body; 2. the first bearing pin; 3. block upper cover; 4. the core of the card; 5. T-bolt; 6. band pads nut; 7. insulator; 8. leading screw tightener; 9. the second bearing pin; 10. annular steps; 11. gaps.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1,2, the utility model comprises that the two ends of front card, rear card and 8, two leading screw tighteners 8 of two leading screw tighteners are bolted with the end of front card and rear card respectively, and is all connected with manual lever, described front card, rear card structure is identical, front card and rear card are the structure that sickle type can folding, front card and rear card are arranged in parallel, the card upper cover 3 that includes card main body 1 and match with card main body 1, card main body 1 is respectively arranged with half-body of revolution groove with the middle part of card upper cover 3, combine the rotary body die cavity that is formed for holding the core of the card 4, one end of card upper cover 3 is flexibly connected with card main body 1 by the first bearing pin 2, the other end is provided with " U " shape gap, in card main body 1, by the second bearing pin 9, be connected with the T-bolt 5 in " U " shape gap that can snap in card upper cover 3, the supporting band pad nut 6 being provided with for locking clamp upper cover 3 on T-bolt 5, described the core of the card 4 is divided into symmetrical two parts along diameter, and the core of the card 4 end faces are lower than 3～5 millimeters of symmetrical diametral planes, and rotary body outer peripheral face dimerous and rotary body die cavity are suitable, and the surface configuration of internal cavities and insulator 7 is suitable.
Referring to Fig. 3,4, be combined into the groove that is also provided with annular on the card main body 1 of rotary body die cavity and the half-body of revolution groove inwall of card upper cover 3, and the rotary body outer peripheral face of the core of the card 4 is provided with the annular steps 10 suitable with the groove of this annular, after the core of the card 4 combinations, being arranged on like this can reliable grip in front card or the rear rotary body groove blocking.
Referring to Fig. 5, between the relative end face of the core of the card 4 two parts, leave the gap 11 for clamping.
The utility model can coordinate the steel cap of different insulator 7 to reach the object of changing different insulators with different the core of the card 4, both be suitable for changing in closed fixture middle single-slice insulator 7, also can be used in conjunction with conductor wire end card and cross-arm-end card, safe and convenient, be easy to carry, be the Work tool of small-sized replacing insulator that can one card for multiple uses.。
Claims (4)
1. transmission line is changed the multi-functional closed fixture of insulator, it is characterized in that: comprise front card, rear card and two leading screw tighteners (8), the two ends of two leading screw tighteners (8) are fixed with the end of front card and rear card respectively;
Described front card, rear card structure are identical, include card main body (1) and be connected to the card upper cover (3) in card main body (1) with card main body (1) split that matches, card main body (1) offers respectively half-body of revolution groove with the middle part of card upper cover (3), combines the rotary body die cavity that is formed for holding the core of the card (4);
Described the core of the card (4) is divided into symmetrical two parts along diameter, rotary body outer peripheral face dimerous and rotary body die cavity are suitable, the surface configuration of internal cavities and insulator (7) is suitable, between the relative end face of the core of the card (4) two parts, leaves the gap (11) for clamping insulator (7).
2. transmission line according to claim 1 is changed the multi-functional closed fixture of insulator, it is characterized in that: on described two leading screw tighteners (8), be all connected with manual lever.
3. transmission line according to claim 1 is changed the multi-functional closed fixture of insulator, it is characterized in that: described card upper cover (3) one end is flexibly connected with card main body (1) by the first bearing pin (2), the other end is provided with " U " shape gap, card main body (1) is upper is connected with the T-bolt (5) that can snap in card upper cover (3) " U " shape gap by the second bearing pin (9), and the upper supporting band pad nut (6) being provided with for locking clamp upper cover (3) of T-bolt (5).
4. transmission line according to claim 1 is changed the multi-functional closed fixture of insulator, it is characterized in that: on the half-body of revolution groove inwall of the described card main body (1) that is combined into rotary body die cavity and card upper cover (3), be also provided with the groove of annular, and the rotary body outer peripheral face of the core of the card (4) is provided with the annular steps (10) suitable with the groove of this annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197867.6U CN203911336U (en) | 2014-04-22 | 2014-04-22 | Multifunctional closed clamp for changing insulators on power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420197867.6U CN203911336U (en) | 2014-04-22 | 2014-04-22 | Multifunctional closed clamp for changing insulators on power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911336U true CN203911336U (en) | 2014-10-29 |
Family
ID=51785582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420197867.6U Expired - Fee Related CN203911336U (en) | 2014-04-22 | 2014-04-22 | Multifunctional closed clamp for changing insulators on power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911336U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470861A (en) * | 2015-12-29 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Adaptive closed fixture for live working insulator of power transmission line |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN107293997A (en) * | 2017-08-04 | 2017-10-24 | 江西电力职业技术学院 | Suspension insulator changes hook and replacing device for insulator |
| CN110581455A (en) * | 2019-08-29 | 2019-12-17 | 中国南方电网有限责任公司超高压输电公司昆明局 | Automatic device of changing of high altitude suspension insulator |
| CN111029965A (en) * | 2019-12-14 | 2020-04-17 | 武汉大云物移智科技有限公司 | Clamp for replacing insulator |
-
2014
- 2014-04-22 CN CN201420197867.6U patent/CN203911336U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470861A (en) * | 2015-12-29 | 2016-04-06 | 国网浙江省电力公司嘉兴供电公司 | Adaptive closed fixture for live working insulator of power transmission line |
| CN105470861B (en) * | 2015-12-29 | 2017-12-08 | 国网浙江省电力公司嘉兴供电公司 | A kind of self-adaptation type closed type fixture of hot line maintenance insulator |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN107293997A (en) * | 2017-08-04 | 2017-10-24 | 江西电力职业技术学院 | Suspension insulator changes hook and replacing device for insulator |
| CN110581455A (en) * | 2019-08-29 | 2019-12-17 | 中国南方电网有限责任公司超高压输电公司昆明局 | Automatic device of changing of high altitude suspension insulator |
| CN110581455B (en) * | 2019-08-29 | 2024-04-05 | 中国南方电网有限责任公司超高压输电公司昆明局 | Automatic replacement device for overhead suspension insulator |
| CN111029965A (en) * | 2019-12-14 | 2020-04-17 | 武汉大云物移智科技有限公司 | Clamp for replacing insulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203911336U (en) | Multifunctional closed clamp for changing insulators on power transmission line | |
| CN203859441U (en) | Closed clamp for replacing insulator | |
| CN102611060B (en) | Lead clamping device | |
| CN201126942Y (en) | Chucking tools clamping apparatus for altering middle single-slice insulator for 750kV circuit with electrification | |
| CN204789734U (en) | Electrician's utensil is tested to portable high pressure | |
| CN201126944Y (en) | Chucking tools clamping apparatus for altering cross-arm-end insulator for 750kV circuit with electrification | |
| CN204908105U (en) | Electric power overhauls special safety helmet | |
| CN201608487U (en) | Strain clamp of aluminium stranded wire of carbon fiber composite core | |
| CN203205761U (en) | Device for loading and unloading cable fault indicator | |
| CN203415707U (en) | Power cable emergency changeover plug | |
| CN202082339U (en) | Rope fixing structure | |
| CN202550395U (en) | V-shaped single insulator string replacement fixture for compact type 500kV transmission line | |
| CN203760925U (en) | Power line tension single-link insulator changing clamp | |
| CN204216248U (en) | The universal bus grounding device of switch cubicle | |
| CN204012585U (en) | A kind of insulator cable retention clip | |
| CN203481705U (en) | High-voltage transmission line spacing rod disassembling device | |
| CN201985362U (en) | Novel wiring device | |
| CN205210122U (en) | Power cable high -voltage testing uses swift anchor clamps | |
| CN203193185U (en) | Insulated conductor stringing device | |
| CN207530280U (en) | The removable lining low-voltage grounding wire clamp of handle | |
| CN204694750U (en) | A kind of three-phase electric energy meter connector | |
| CN204947467U (en) | Vertical two elevator | |
| CN215681683U (en) | Portable live wire sleeve | |
| CN203445001U (en) | Combined type multifunctional insulation operating lever | |
| CN203119253U (en) | Detached column type rotary power strip |
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: 20141029 |