CN202111439U - Double strain clamp for alternating-current ultrahigh voltage line insulator string - Google Patents
Double strain clamp for alternating-current ultrahigh voltage line insulator string Download PDFInfo
- Publication number
- CN202111439U CN202111439U CN2011202412883U CN201120241288U CN202111439U CN 202111439 U CN202111439 U CN 202111439U CN 2011202412883 U CN2011202412883 U CN 2011202412883U CN 201120241288 U CN201120241288 U CN 201120241288U CN 202111439 U CN202111439 U CN 202111439U
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- Prior art keywords
- clamp body
- insulator string
- insulator
- alternating
- clamp
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- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 34
- 239000012211 strain insulator Substances 0.000 claims description 13
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 5
- 238000004904 shortening Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a double strain clamp for an alternating-current ultrahigh voltage line insulator string. The double strain clamp comprises a clamp body and a connecting element for fixing the clamp body to an upholder, wherein the clamp body comprises a left connecting arm and a right connecting arm; connection holes allowing a lead screw to pass therethrough are formed on the left connecting arm and the right connecting arm, respectively; and the axes of the connection holes are parallel with the insulator string. The double strain clamp for the alternating-current ultrahigh voltage line insulator string is characterized in that: the clamp body is simple in structure; the lead screw connected to an insulating pulling plate can be directly arranged on the clamp body, so that the shortcoming of an air gap due to short connection of the labor-saving lead screw and a movable joint is avoided, the distance of the insulating pulling plate and the clamp body can be greatly shortened, the effective insulation length of the insulating pulling plate is increased, and the safety factor of live-wire work is enhanced; therefore, the safety of the operation of replacing the insulator is improved; moreover, the clamp body is a split type structure and thereby can be connected to the upholder through the connecting element conveniently and quickly; in this way, the operation time can be greatly shortened and the operation efficiency is improved.
Description
Technical field
The utility model relates to a kind of insulator jig, particularly a kind of high pressure overhead power line insulator jig.
Background technology
Insulator plays two basic roles in overhead transmission line, promptly play support conductors and insulation,, insulator has guaranteed the normal operation of circuit.But because in the on-line operation process, insulator bears the influence that high voltage, mechanical load and natural environment change for a long time, the easy damage rupture of insulator for ensureing the safe and stable operation of circuit, just must be changed the insulator of breakage.Insulator string sheet number, structure height, tonnage are corresponding with transmission line voltage; For example the 500kV transmission line its require the sub-sheet number of good insulation performance must not be less than 23; Effective insulated lengths of insulating tool must not be less than 3.7 meters; Combinational gap must not be less than 4.0 meters, and the safe distance of the person and electrified body must not be less than 3.4 meters, otherwise will be dangerous when changing insulator.
The strain insulator jig structure that be arranged at hot end in the prior art, insulator is fixed on the lead is comparatively complicated, comprises that fixture body, laborsaving leading screw, Connection Card are specifically with the connector I of leading screw with is connected the connector II of leading screw and the arm-tie that insulate.Effective insulated lengths of its insulation arm-tie is to deduct the headroom length that is connected behind the metal connector of insulation on the arm-tie.There is following shortcoming in this jig: 1, metal parts is more, the metal leading screw is long, complex connection, and effective insulated lengths of the arm-tie that causes insulating reduces.2, connect insulation arm-tie and adjustment insulation arm-tie length consuming time; Operating personnel's labour intensity is big, and the activity duration is long more, and the live line working rate of failure is big more; This just certainly will have influence on the dielectric strength of circuit; And in order to guarantee workmen's personal safety, the reclosing device of must stopping using again, this makes the whole piece circuit lose automatic protection again.
Therefore need improve strain insulator duplex jig of the prior art,, increase effective insulated lengths of insulation arm-tie, improve the fail safe and the efficient type of charged for replacement insulator operation to simplify its structure and connected mode.
The utility model content
In view of this; The purpose of the utility model provides a kind of interchange supertension line insulator string duplex strain insulator jig; It has simple in structure, convenient and fast connection, can increase effective insulated lengths of insulation arm-tie, has avoided loaded down with trivial details insulation arm-tie adjustment process, has shortened the activity duration; Reduced operating personnel's labour intensity, advantages such as the fail safe of raising charged for replacement insulator and efficiency.
The utility model exchanges supertension line insulator string duplex strain insulator jig; Comprise fixture body and fixture body is fixed in the connector on the supporter; Said fixture body comprises left linking arm and right linking arm; Be respectively arranged with the connecting hole that supplies leading screw to pass on left side linking arm and the right linking arm, the axis of connecting hole is parallel with insulator string.
Further, said left linking arm and right linking arm are provided with relative through hole, and said connector is the bolt that is arranged in the through hole;
Further; Said fixture body middle part is provided with and is used to hold the cavity of interfering the position on the supporter.
The beneficial effect of the utility model: the utility model exchanges supertension line insulator string duplex strain insulator jig; Its fixture body is simple in structure, and the leading screw that connects the insulation arm-tie can directly be arranged on the fixture body, has avoided the drawback because of leading screw and articulation short circuit air gap; Shortening insulation arm-tie that can be very big is with the distance of fixture body; Increase effective insulated lengths of insulation arm-tie, increased the coefficient of safety of live line working, thereby improve the fail safe of changing the insulator operation; Fixture body is a split-type structural, can convenient and swiftly be connected with supporter through connector, and the shortening activity duration that can be very big, it is high to improve operating efficiency; And it can apply to the construction of infrastructure project, uses extensively, and is no matter be scheduled outage major repair of track or charged for replacement monolithic or bunch of insulator, all indispensable, practical.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of this interchange supertension line insulator string duplex strain insulator jig.
Embodiment
Fig. 1 is the structural representation of this interchange supertension line insulator string duplex strain insulator jig.
As shown in the figure; Present embodiment exchanges supertension line insulator string duplex strain insulator jig; Comprise fixture body and fixture body is fixed in the connector 1 on the supporter; Said fixture body comprises left linking arm 2 and right linking arm 3, is respectively arranged with the connecting hole 4 that supplies leading screw to pass on left linking arm 2 and the right linking arm 3, and the axis of connecting hole 4 is parallel with insulator string.The utility model exchanges supertension line insulator string duplex strain insulator jig; Its fixture body is simple in structure, and the straight line leading screw that connects the insulation arm-tie can directly be arranged on the fixture body, and shortening insulation arm-tie that can be very big is with the distance of fixture body; Increase effective insulated lengths of insulation arm-tie; Do not use articulation and laborsaving leading screw to shorten the activity duration, avoided drawback, avoided loaded down with trivial details arm-tie adjustment process yet because of leading screw and articulation short circuit air gap; Reduced operating personnel's labour intensity, advantages such as the fail safe of raising charged for replacement insulator and efficiency.Fixture body is a split-type structural, can convenient and swiftly be connected with supporter through connector, and the shortening activity duration that can be very big, it is high to improve operating efficiency.
In the present embodiment, said left linking arm 2 is provided with corresponding through hole with right linking arm 3, and said connector 1 is for to be arranged at the bolt in the through hole, and connected mode is simple, convenient and fast connection.
In the present embodiment, said fixture body middle part is provided with and is used to hold the cavity 5 of interfering the position on the supporter, cavity is set can makes this jig be adapted to the various supports thing, and adaptability is stronger.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the aim and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (3)
1. one kind exchanges supertension line insulator string duplex strain insulator jig; It is characterized in that: comprise fixture body and fixture body is fixed in the connector on the supporter; Said fixture body comprises left linking arm and right linking arm; Be respectively arranged with the connecting hole that supplies leading screw to pass on left side linking arm and the right linking arm, the axis of connecting hole is parallel with insulator string.
2. interchange supertension line insulator string duplex strain insulator jig according to claim 1, it is characterized in that: said left linking arm and right linking arm are provided with corresponding through hole, and said connector is the bolt that is arranged in the through hole.
3. interchange supertension line insulator string duplex strain insulator jig according to claim 2 is characterized in that: said fixture body middle part is provided with and is used to hold the cavity of interfering the position on the supporter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202412883U CN202111439U (en) | 2011-07-11 | 2011-07-11 | Double strain clamp for alternating-current ultrahigh voltage line insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202412883U CN202111439U (en) | 2011-07-11 | 2011-07-11 | Double strain clamp for alternating-current ultrahigh voltage line insulator string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111439U true CN202111439U (en) | 2012-01-11 |
Family
ID=45436887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202412883U Expired - Lifetime CN202111439U (en) | 2011-07-11 | 2011-07-11 | Double strain clamp for alternating-current ultrahigh voltage line insulator string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244819A (en) * | 2020-03-12 | 2020-06-05 | 广东电网有限责任公司 | Insulator cluster is changed and is used right angle link plate fixture |
-
2011
- 2011-07-11 CN CN2011202412883U patent/CN202111439U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111244819A (en) * | 2020-03-12 | 2020-06-05 | 广东电网有限责任公司 | Insulator cluster is changed and is used right angle link plate fixture |
| CN111244819B (en) * | 2020-03-12 | 2021-09-17 | 广东电网有限责任公司 | Insulator cluster is changed and is used right angle link plate fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20120919 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120919 Address after: 400039 No. 92 Torch Road, Erlang hi tech Zone, Chongqing hi tech Development Zone Patentee after: Chongqing Electric Power Corporation Maintenance Branch Patentee after: State Grid Corporation of China Address before: 400039 No. 92 Torch Road, Erlang hi tech Zone, Chongqing hi tech Development Zone Patentee before: Chongqing Electric Power Corporation Maintenance Branch |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |