CN202978157U - Pre-twisted strain clamp - Google Patents
Pre-twisted strain clamp Download PDFInfo
- Publication number
- CN202978157U CN202978157U CN 201220511137 CN201220511137U CN202978157U CN 202978157 U CN202978157 U CN 202978157U CN 201220511137 CN201220511137 CN 201220511137 CN 201220511137 U CN201220511137 U CN 201220511137U CN 202978157 U CN202978157 U CN 202978157U
- Authority
- CN
- China
- Prior art keywords
- heart
- type ring
- strain clamp
- coaxial
- shaped ring
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a pre-twisted strain clamp, which comprises a pre-twisted wire (1) and a connecting device (2). The connecting device (2) comprises two hanging plates (2a, 2b) with the same structure. The two hanging plates are symmetrically arranged in a non-attaching way. Two groups of coaxial holes (2c, 2d) are arranged on the two hanging plates. The connecting device (2) further comprises a heart-shaped ring (3). The heart-shaped ring (3) is arranged between the two hanging plates. The heart-shaped ring (3) is coaxial to the coaxial holes (2c). The two hanging plates and the heart-shaped ring (3) are connected through bolts (4). Bolts (5) are further arranged on the other group of coaxial holes (2d). The top part of the pre-twisted wire is embedded on the heart-shaped ring (3) in a doubling state while the rest part is of a helix tube shape. The pre-twisted strain clamp has a simple reasonable structure and is convenient to install. Stress is uniformly distributed between the wire clamp and a lead. No stress concentrating point exists. The pre-twisted strain clamp has relatively strong practicality.
Description
Technical field
The utility model belongs to the field of components used in overhead transmission line, relates 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 wire clamp.Due to the steel strand wire discontinuity that is locked, thereby easily damaging steel strand wire, this wire clamp cause its life-span lower.And bolt-type strain clamp is to utilize the frictional force that the wave wire casing of the pressure at right angle of U-shaped screw and wire clamp produces that 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
The purpose of this utility model 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 utility model 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 on 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 hole, by bolt, two link plates is connected with heart type ring; On another coaxial aperture, bolt is set;
Described preformed armor rods end is doubled state and is nested on heart type ring, and remainder is helix.
Further, described heart type ring can be around himself axis rotation.
The utility model has the advantage of: 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 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 utility model.
Fig. 2 is the structural representation of jockey of the present utility model.
Fig. 3 is the structural representation of jockey two link plates of the present utility model.
Fig. 4 is that the utility model uses view.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Shown in Fig. 1,2,3 and 4, the utility model pre-hinged strain clamp 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 on 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 hole 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 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 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 same position place's contact for a long time damages.Simultaneously on the coaxial hole 2c of another group, bolt 5 is set, the utility model pre-hinged strain clamp can be fixed in by this bolt 5 on the structure such as pylon fixture.
When the utility model pre-hinged strain clamp 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 aerial condutor 6, then the bolt 5 by jockey is fixed in the utility model integral body on the structures such as pylon fixture and gets final product.
The utility model 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) on 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 (2a, 2b), and heart type ring (3) is coaxial with coaxial hole (2c), by bolt (4), two link plates is connected with heart type ring; On another coaxial hole (2d), bolt (5) is set; Described preformed armor rods (1) end is doubled state and is nested on 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 |
|---|---|---|---|
| CN 201220511137 CN202978157U (en) | 2012-10-08 | 2012-10-08 | Pre-twisted strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511137 CN202978157U (en) | 2012-10-08 | 2012-10-08 | Pre-twisted strain clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978157U true CN202978157U (en) | 2013-06-05 |
Family
ID=48519184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220511137 Withdrawn - After Issue CN202978157U (en) | 2012-10-08 | 2012-10-08 | Pre-twisted strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856863A (en) * | 2012-10-08 | 2013-01-02 | 江苏天南电力器材有限公司 | Preformed strain clamp |
| CN116845800A (en) * | 2023-09-01 | 2023-10-03 | 山西腾耀电力设备科技有限公司 | Portable electric tension clamp |
-
2012
- 2012-10-08 CN CN 201220511137 patent/CN202978157U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856863A (en) * | 2012-10-08 | 2013-01-02 | 江苏天南电力器材有限公司 | Preformed strain clamp |
| CN102856863B (en) * | 2012-10-08 | 2015-10-07 | 江苏天南电力器材有限公司 | A kind of pre-hinged strain clamp |
| CN116845800A (en) * | 2023-09-01 | 2023-10-03 | 山西腾耀电力设备科技有限公司 | Portable electric tension clamp |
| CN116845800B (en) * | 2023-09-01 | 2023-11-07 | 山西腾耀电力设备科技有限公司 | Portable electric tension clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20151007 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |