CN215418648U - Rigid connection device for power lead - Google Patents
Rigid connection device for power lead Download PDFInfo
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- CN215418648U CN215418648U CN202121488245.5U CN202121488245U CN215418648U CN 215418648 U CN215418648 U CN 215418648U CN 202121488245 U CN202121488245 U CN 202121488245U CN 215418648 U CN215418648 U CN 215418648U
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- bolt
- clamping plate
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- shaped conductive
- fastening
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Abstract
The utility model discloses a rigid connecting device for an electric power lead, which consists of a butterfly-shaped conductive core, an upper clamping plate, a lower clamping plate and a fastening bolt, wherein the butterfly-shaped conductive core is provided with a positioning plate, a bolt through hole is formed in the positioning plate of the butterfly-shaped conductive core, the fastening bolt is a forward and reverse rotating bolt with one end provided with a left-handed thread and the other end provided with a right-handed thread, the middle part of the fastening bolt is provided with a fastening tool clamping part with the maximum outline size larger than the diameter of the bolt through hole in the positioning plate, and one of the fastening threaded holes in the upper clamping plate and the fastening threaded hole in the lower clamping plate are provided with a left-handed thread and the other is provided with a right-handed thread. Compared with the prior art, the utility model realizes the same material connection, and the connection resistance is lower than that of a straight-through wire. Meanwhile, during connection, the bolts do not need to be disassembled, the wires do not need to be penetrated with labor, only the wires are put between the butterfly-shaped conductive cores, the high-altitude falling of parts does not need to be worried, and the assembly and disassembly are more convenient.
Description
Technical Field
The utility model relates to a power lead connecting device, in particular to a power lead rigid connecting device. The tension-resistant connection device is mainly used for tension-resistant connection, branch connection and leading-out connection in electric power transmission and distribution lines, low-voltage lines and factory distribution lines.
Background
At present, a parallel groove clamp is mainly used for connecting wires on a power transmission and distribution line and a low-voltage line of a power grid. The parallel groove clamp connection has outstanding problems, namely, the accident of burning and wire breaking at the connection part of the parallel groove clamp sometimes occurs, and the connection resistance is large, so that the power transmission and supply capacity of a power line with huge investment is only exerted by about 90 percent. In the last two decades, a plurality of novel connecting devices are invented at home and abroad for replacing parallel groove clamps, but the connecting devices are not widely applied due to reasons of high-altitude falling of parts and the like. At present, a parallel groove clamp is still used for connecting 95% of wires on a power transmission and distribution line and a low-voltage line of a power grid. Therefore, the design of the power lead rigid connection device which has small connection resistance, does not cause burning and disconnection accidents at the connection part and does not cause high-altitude falling of parts is the technical problem to be solved at present.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a power wire rigid connection device which has small connection resistance, does not cause burning and disconnection accidents at the connection part and does not cause high-altitude falling of parts.
The technical scheme for solving the technical problem is as follows:
the power wire rigid connection device comprises a butterfly-shaped conductive core, an upper clamping plate, a lower clamping plate and fastening bolts, wherein the butterfly-shaped conductive core is provided with a positioning plate, bolt through holes are formed in the positioning plate of the butterfly-shaped conductive core, the fastening bolts are forward and reverse rotating bolts, one end of each fastening bolt is provided with a left-handed thread, the other end of each fastening bolt is provided with a right-handed thread, the middle of each fastening bolt is provided with a fastening tool clamping part, the maximum outline size of each fastening tool clamping part is larger than the diameter of each bolt through hole in the positioning plate, and one fastening threaded hole in each of the upper clamping plate and the lower clamping plate is provided with a left-handed thread while the other fastening threaded hole in each of the upper clamping plate and the lower clamping plate is provided with a right-handed thread.
When the connecting device is used, the wires to be connected are respectively inserted into the upper groove and the lower groove of the butterfly-shaped conductive core, the fastening bolt is rotated by a tool, the upper clamping plate moves downwards, the lower clamping plate moves upwards, and the wires to be connected are clamped. Disassembly causes the fastening bolts to be rotated in the opposite direction.
As a preferable scheme of the present invention, the positioning plate of the butterfly-shaped conductive core has a plurality of bolt through holes, a fastening bolt is inserted into each bolt through hole, an upper clamping plate is screwed at the upper end of each fastening bolt, and a lower clamping plate is screwed at the lower end of each fastening bolt.
In a preferred embodiment of the present invention, the number of bolt passing holes on the positioning plate of the butterfly-shaped conductive core is 1, 2, 3, 4, 5 or 6.
In a preferred embodiment of the present invention, the butterfly conductive core is made of aluminum, copper or aluminum-copper welded material, which is the same as the material of the wire to be connected.
As a preferable scheme of the utility model, the upper clamping plate and the lower clamping plate are made of common carbon steel, high carbon steel, stainless steel or malleable steel.
In a preferred embodiment of the present invention, the outer contour of the upper and lower clamping plates is rectangular, oblate, trapezoidal, or oval.
In a preferred embodiment of the present invention, the fastening tool engaging portion has a quadrangular or hexagonal cross-sectional shape.
Compared with the prior art, the utility model realizes the same material connection, and the connection resistance is lower than that of a straight-through wire. Meanwhile, during connection, the bolts do not need to be disassembled, the wires do not need to be penetrated with labor, only the wires are put between the butterfly-shaped conductive cores, the high-altitude falling of parts does not need to be worried, and the assembly and disassembly are more convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1 is an upper clamping plate (threaded hole left-handed or right-handed), 2 is a fastening bolt (double-head reverse and positive threaded rod), 3 is a butterfly-shaped conductive core, and 4 is a lower clamping plate (threaded hole left-handed or right-handed).
Detailed Description
As shown in the figure, the power wire rigid connection device comprises a butterfly-shaped conductive core 3, an upper clamping plate 1, a lower clamping plate 4 and a fastening bolt 2, wherein the butterfly-shaped conductive core 3 is provided with a positioning plate 3-1, a bolt through hole is formed in the positioning plate 3-1 of the butterfly-shaped conductive core 3, the fastening bolt 2 is a forward-reverse bolt with one end provided with a left-handed thread and the other end provided with a right-handed thread, the middle part of the fastening bolt 2 is provided with a fastening tool clamping part 2-1, the maximum outline size of the fastening tool clamping part is larger than the diameter of the bolt through hole in the positioning plate 3-1, and one of the fastening threaded holes in the upper clamping plate 1 and the other fastening threaded hole in the lower clamping plate 4 are provided with the left-handed thread and the other fastening threaded hole is provided with the right-handed thread.
A plurality of bolt through holes are formed in a positioning plate 3-1 of the butterfly-shaped conductive core 3, a fastening bolt 2 penetrates through each bolt through hole, an upper clamping plate 1 is screwed at the upper end of each fastening bolt 2, and a lower clamping plate 4 is screwed at the lower end of each fastening bolt 2.
The number of bolt passing holes on the positioning plate 3-1 of the butterfly-shaped conductive core 3 is 1, 2, 3, 4, 5 or 6.
The butterfly-shaped conductive core 3 is made of aluminum, copper or aluminum-copper welding materials which are the same as the materials of the wires to be connected.
The upper splint 1 and the lower splint 4 are made of common carbon steel, high carbon steel, stainless steel or malleable steel.
The outline of the upper splint 1 and the lower splint 4 is rectangular, oblate, trapezoidal or elliptical.
The section of the fastening tool clamping part 2-1 is quadrilateral or hexagonal.
Claims (7)
1. The power wire rigid connection device is composed of a butterfly-shaped conductive core (3), an upper clamping plate (1), a lower clamping plate (4) and a fastening bolt (2), and is characterized in that the butterfly-shaped conductive core (3) is provided with a positioning plate (3-1), a bolt through hole is formed in the positioning plate (3-1) of the butterfly-shaped conductive core (3), the fastening bolt (2) is a forward and reverse rotating bolt with one end provided with a left-handed thread and the other end provided with a right-handed thread, the middle part of the fastening bolt (2) is provided with a fastening tool clamping part (2-1) with the maximum outline size larger than the diameter of the bolt through hole in the positioning plate (3-1), and one of the fastening threaded holes in the upper clamping plate (1) and the lower clamping plate (4) is provided with a left-handed thread and the other is provided with a right-handed thread.
2. The power wire rigid connection device according to claim 1, wherein a plurality of bolt through holes are formed in a positioning plate (3-1) of the butterfly-shaped conductive core (3), a fastening bolt (2) penetrates through each bolt through hole, an upper clamping plate (1) is screwed at the upper end of each fastening bolt (2), and a lower clamping plate (4) is screwed at the lower end of each fastening bolt (2).
3. The rigid connection device for power conductors as claimed in claim 2, wherein the number of bolt passing holes on the positioning plate (3-1) of the butterfly-shaped conductive core (3) is 1, 2, 3, 4, 5 or 6.
4. The rigid connection device of an electric power lead wire according to claim 1 or 2, characterized in that the butterfly-shaped conductive core (3) is made of aluminum, copper or aluminum-copper welding material which is the same as the material of the lead wire to be connected.
5. The rigid connection device of an electric power lead according to claim 1 or 2, characterized in that the upper clamping plate (1) and the lower clamping plate (4) are made of plain carbon steel, high carbon steel, stainless steel or malleable steel.
6. The rigid connection device of an electric power lead according to claim 1 or 2, characterized in that the profile of the upper clamping plate (1) and the lower clamping plate (4) is rectangular, oblate, trapezoidal or oval.
7. The rigid connection device of an electric power lead as claimed in claim 1, wherein the cross-sectional shape of the fastening tool clamping portion (2-1) is quadrangular or hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488245.5U CN215418648U (en) | 2021-06-26 | 2021-06-26 | Rigid connection device for power lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488245.5U CN215418648U (en) | 2021-06-26 | 2021-06-26 | Rigid connection device for power lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215418648U true CN215418648U (en) | 2022-01-04 |
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ID=79643782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121488245.5U Active CN215418648U (en) | 2021-06-26 | 2021-06-26 | Rigid connection device for power lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215418648U (en) |
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2021
- 2021-06-26 CN CN202121488245.5U patent/CN215418648U/en active Active
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