CN102856863A - Preformed strain clamp - Google Patents
Preformed strain clamp Download PDFInfo
- Publication number
- CN102856863A CN102856863A CN201210377190XA CN201210377190A CN102856863A CN 102856863 A CN102856863 A CN 102856863A CN 201210377190X A CN201210377190X A CN 201210377190XA CN 201210377190 A CN201210377190 A CN 201210377190A CN 102856863 A CN102856863 A CN 102856863A
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- type ring
- heart
- strain clamp
- coaxial
- preformed
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Abstract
The invention discloses a preformed strain clamp, which comprises a preformed armor rod (1) and a connecting device (2). The connecting device (2) comprises two hanging plates (2a and 2b) with the same structure. The two hanging plates are symmetrically placed without being in contact with each other. Two groups of coaxial holes (2c and 2d) are arranged in the two hanging plates. The connecting device (2) additionally comprises a heart-shaped ring (3). The heart-shaped ring (3) is arranged between the two hanging plates. The heart-shaped ring (3) and the coaxial holes (2c) are coaxial. The two hanging plates and the heart-shaped ring (3) are connected through a bolt (4). A bolt (5) is arranged in coaxial holes (2d). The top end of the preformed armor rod is folded by half and is nested on the heart-shaped ring (3). The other part of the preformed armor rod is spirally tubular. The preformed strain clamp has the advantages that the structure is simple and reasonable, the preformed strain clamp is convenient to install, the stress between the clamp and the wire is evenly distributed, no stress concentration point exists and the practicability is higher.
Description
Technical field
The invention belongs to the used field of components in the overhead transmission line, relate in particular to a kind of pre-hinged strain clamp.
Background technology
Along with people to the increasing rapidly of electricity needs, yet suspended insulated guide wire be connected with the end at rotation angle position and need strain clamp to connect, this just needs a large amount of strain clamps.Traditional strain clamp all adopts wedge structure and screw bolt-type structure.Wedge strain resistance cable clamp is the power of the splitting effect that utilizes wedge type, and steel strand wire are locked in the wire clamp.Because the steel strand wire discontinuity that is locked causes its life-span lower thereby this wire clamp easily damages steel strand wire.And being the frictional force of utilizing the wave wire casing of the pressure at right angle of U-shaped screw and wire clamp to produce, bolt-type strain clamp comes wire is fixed, but the frictional force that obtains is less, the local stress at bolt-locking position is comparatively concentrated, and electric wire easily gets loose, and fail safe is lower.And the structure of this two strain clamps kind is all comparatively complicated.
Summary of the invention
Purpose of the present invention is the shortcoming that overcomes prior art, provides a kind of simple in structure easy to use, and makes a kind of pre-hinged strain clamp of wire uniform stressed.
For solving the problems of the technologies described above, concrete technical scheme of the present invention is as follows:
A kind of pre-hinged strain clamp, its innovative point is: be comprised of preformed armor rods and jockey;
Described jockey comprises the identical link plate of two block structures, and two link plates are snugly symmetrical placement not, has two groups of coaxial holes at two link plates;
Described jockey also comprises wholeheartedly type ring, and described heart type ring is arranged in the middle of two link plates, and heart type ring is coaxial with coaxial aperture, by bolt two link plates is connected with heart type ring; At another coaxial aperture bolt is set;
Described preformed armor rods end is doubled state and is nested on the heart type ring, and remainder is helix.
Further, described heart type ring can be around himself axis rotation.
The invention has the advantages that: preformed armor rods and wire have larger contact area, and stress distribution is even, and unstressed centrostigma has stronger security performance.
Install simply between preformed armor rods and the wire, do not need any large-scale instrument, but people's complete independently, and the installation quality consistency is strong, simultaneously also convenient inspection; Simultaneously can clamp the wire of various sectional dimensions.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the structural representation of jockey of the present invention.
Fig. 3 is the structural representation of jockey two link plates of the present invention.
Fig. 4 is that the present invention uses view.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
Shown in Fig. 1,2,3 and 4, pre-hinged strain clamp of the present invention is comprised of preformed armor rods 1 and jockey 2; Described jockey 1 comprises two block structures identical link plate 2a and 2b, and two link plates are snugly symmetrical placement not, has two groups of coaxial hole 2c and 2d at two link plates; Described jockey 2 also comprises wholeheartedly type ring 3, and described heart type ring 3 is arranged in the middle of two link plates, and heart type ring 3 is coaxial with coaxial aperture 2c, by bolt 4 two link plates is connected with heart type ring 3; The end of preformed armor rods 1 is doubled state and is nested on the heart type ring 3, and remainder is helix.Described heart type ring 3 can rotate around self axis; Because the contact between preformed armor rods end and the heart type ring 3 is larger, the rotational freedom of heart type ring can shift the contact position of heart type ring and preformed hank knotting effectively, and the mechanical local fatigue of avoiding causing in the contact of same position place for a long time damages.Simultaneously at another group coaxial aperture 2c bolt 5 is set, pre-hinged strain clamp of the present invention can be fixed in by this bolt 5 on the structure such as pylon anchor clamps.
When pre-hinged strain clamp of the present invention during concrete the use, first preformed armor rods 1 is passed heart type ring 3, then with remaining preformed armor rods 1 all be wrapped in outside the aerial condutor 6, then the bolt 5 by jockey is fixed in integral body of the present invention on the structures such as pylon anchor clamps and gets final product.
The present invention is simple and reasonable, and the phenomenon of having avoided stress to concentrate is simultaneously easy for installation, has stronger practicality.
Claims (2)
1. a pre-hinged strain clamp is characterized in that: be comprised of preformed armor rods (1) and jockey (2); Described jockey (2) comprises the identical link plate of two block structures (2a, 2b), and two link plates (2a, 2b) are snugly symmetrical placement not, has two groups of coaxial holes (2c, 2d) at two link plates (2a, 2b); Described jockey (2) also comprises wholeheartedly type ring (3), and described heart type ring (3) is arranged between two link plates (2c, 2d), and heart type ring (3) is coaxial with coaxial aperture group (2c), by bolt (4) two link plates is connected with heart type ring; In another coaxial aperture group (2d) bolt (5) is set; Described preformed armor rods (1) end is doubled state and is nested on the heart type ring, and remainder is helix.
2. pre-hinged strain clamp according to claim 1 is characterized in that: described heart type ring (3) can be around himself axis rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210377190.XA CN102856863B (en) | 2012-10-08 | 2012-10-08 | A kind of pre-hinged strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210377190.XA CN102856863B (en) | 2012-10-08 | 2012-10-08 | A kind of pre-hinged strain clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102856863A true CN102856863A (en) | 2013-01-02 |
| CN102856863B CN102856863B (en) | 2015-10-07 |
Family
ID=47403178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210377190.XA Active CN102856863B (en) | 2012-10-08 | 2012-10-08 | A kind of pre-hinged strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102856863B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737884A (en) * | 2017-11-10 | 2018-02-27 | 扬州市天奇机械有限公司 | A kind of casting method of bowl of head cardioid ring |
| CN110867806A (en) * | 2019-12-05 | 2020-03-06 | 国网辽宁省电力有限公司沈阳供电公司 | Novel strain clamp |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB992717A (en) * | 1962-03-08 | 1965-05-19 | Post Office | Improvements in or relating to drop-wire grips |
| JPH05219618A (en) * | 1992-02-03 | 1993-08-27 | Sanwa Tekki Corp | Wire end gripper |
| CN2682706Y (en) * | 2004-01-18 | 2005-03-02 | 桂林市天地光纤通信有限公司 | Pre-twisted strain clamp for overhead line |
| RU2291535C1 (en) * | 2005-10-12 | 2007-01-10 | Закрытое акционерное общество "Электросетьстройпроект" | Helical deadend clamp |
| CN201015962Y (en) * | 2007-02-28 | 2008-02-06 | 北京帕尔普线路器材有限公司 | Strain clamp for cuprum and copper alloy wires cross |
| CN202167813U (en) * | 2011-07-27 | 2012-03-14 | 深圳市天益光纤通信技术有限公司 | Pre-twisted strain clamp |
| CN202978157U (en) * | 2012-10-08 | 2013-06-05 | 江苏天南电力器材有限公司 | Pre-twisted strain clamp |
-
2012
- 2012-10-08 CN CN201210377190.XA patent/CN102856863B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB992717A (en) * | 1962-03-08 | 1965-05-19 | Post Office | Improvements in or relating to drop-wire grips |
| JPH05219618A (en) * | 1992-02-03 | 1993-08-27 | Sanwa Tekki Corp | Wire end gripper |
| CN2682706Y (en) * | 2004-01-18 | 2005-03-02 | 桂林市天地光纤通信有限公司 | Pre-twisted strain clamp for overhead line |
| RU2291535C1 (en) * | 2005-10-12 | 2007-01-10 | Закрытое акционерное общество "Электросетьстройпроект" | Helical deadend clamp |
| CN201015962Y (en) * | 2007-02-28 | 2008-02-06 | 北京帕尔普线路器材有限公司 | Strain clamp for cuprum and copper alloy wires cross |
| CN202167813U (en) * | 2011-07-27 | 2012-03-14 | 深圳市天益光纤通信技术有限公司 | Pre-twisted strain clamp |
| CN202978157U (en) * | 2012-10-08 | 2013-06-05 | 江苏天南电力器材有限公司 | Pre-twisted strain clamp |
Non-Patent Citations (1)
| Title |
|---|
| 李文毅: "《特高压直流输电线路典型施工工艺标准化手册》", 31 March 2011, 中国电力出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107737884A (en) * | 2017-11-10 | 2018-02-27 | 扬州市天奇机械有限公司 | A kind of casting method of bowl of head cardioid ring |
| CN107737884B (en) * | 2017-11-10 | 2019-05-03 | 扬州市天奇机械有限公司 | A kind of casting method of bowl of head cardioid ring |
| CN110867806A (en) * | 2019-12-05 | 2020-03-06 | 国网辽宁省电力有限公司沈阳供电公司 | Novel strain clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102856863B (en) | 2015-10-07 |
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| C06 | Publication | ||
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Address after: 226500, Rugao City, Jiangsu province Nantong City, such as Town Hing Yuen Road, No. 9 Patentee after: Jiangsu Tiannan Electric Power Co., Ltd Address before: 226500, Rugao City, Jiangsu province Nantong City, such as Town Hing Yuen Road, No. 9 Patentee before: JIANGSU TIANNAN POWER EQUIPMENT Co.,Ltd. |