CN114784734B - Anti-drop strain clamp for overhead transmission line - Google Patents
Anti-drop strain clamp for overhead transmission line Download PDFInfo
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- CN114784734B CN114784734B CN202210548480.XA CN202210548480A CN114784734B CN 114784734 B CN114784734 B CN 114784734B CN 202210548480 A CN202210548480 A CN 202210548480A CN 114784734 B CN114784734 B CN 114784734B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005491 wire drawing Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000002788 crimping Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
The invention discloses an anti-drop type strain clamp for an overhead transmission line, which comprises a clamping mechanism and an anti-drop mechanism, wherein the clamping mechanism comprises a clamp body, a wire pressing block, a wire pressing connecting block, a wire drawing connecting block and a U-shaped hanging ring, and the anti-drop mechanism comprises an anti-drop mechanism shell, an anti-drop block, a crank, a supporting shaft and a torsion spring. The strain clamp has the effects of clamping and holding the lead, is convenient to install, reliable in structure, reusable and high in practicability.
Description
Technical Field
The invention relates to the field of electric power fittings of power transmission and transformation technologies, in particular to an anti-drop strain clamp for an overhead transmission line.
Background
At present, a wire strain clamp in a power transmission line generally adopts a crimping structure, a steel anchor of the strain clamp and a steel core of the wire, an aluminum pipe of the strain clamp and an aluminum wire of the wire are respectively crimped, and the grip of the strain clamp on the wire is realized by utilizing friction force generated by crimping between the wire and the strain clamp. But hydraulic type strain clamp not only field installation is inconvenient, needs to break and dial the line to the wire before the strain clamp is installed, often appears leaking the condition of pressure and undervoltage in the strain clamp crimping process moreover, and this has caused certain influence to transmission line's steady operation.
In the prior art, a novel anti-falling insulated wire strain clamp of CN 203589655U discloses a strain clamp with a plurality of anti-falling internal teeth, but the grip strength of a wire is increased by utilizing wedge self-tightening to prevent the wire from falling off; the CN 204030511U strain clamp also utilizes the structure of a wedge-shaped clamping core to realize the section adjustment of the wire clamping groove, thereby adjusting the clamping of the wire.
Disclosure of Invention
The invention provides an anti-drop type strain clamp for an overhead transmission line, which aims to solve the technical problem that the existing hydraulic type strain clamp is insufficient in the installation process.
In order to solve the technical problems, the invention provides an anti-drop strain clamp for an overhead transmission line, which comprises a clamping mechanism and an anti-drop mechanism, wherein the clamping mechanism comprises a clamp body, a wire pressing block, a wire pressing connection block, a wire pulling connection block and a U-shaped hanging ring, the clamp body is provided with a body anti-slip slot for clamping a wire, a body U-shaped slot for installing the wire pressing connection block and a body positioning chute for installing the U-shaped hanging ring, the U-shaped hanging ring is sequentially connected with the wire pulling connection block, the wire pressing connection block and the wire pressing block, and the other end of the wire pressing block is provided with the wire pressing block anti-slip slot; the anti-disengaging mechanism comprises an anti-disengaging mechanism shell, an anti-disengaging block, a crank, a supporting shaft and a torsion spring; the utility model discloses a wire harness is characterized in that the anti-disengaging mechanism shell is fixed on the inner side of a U-shaped groove of a wire clamp body, one end of a supporting shaft passes through the wire clamp body through threads, the other end of the supporting shaft passes through a mounting hole on the anti-disengaging mechanism shell, the crank is mounted on one end of the supporting shaft through a crank mounting hole on one end of the crank and is positioned on the outer side of the wire clamp body, an anti-disengaging block is mounted inside the anti-disengaging mechanism shell, the anti-disengaging block mounting hole on the anti-disengaging block passes through the supporting shaft, a torsion spring is mounted in the U-shaped groove of the anti-disengaging block, a torsion spring round ring passes through the supporting shaft, and the other end of the torsion spring round ring is mounted on the anti-disengaging mechanism shell, and the anti-disengaging block is positioned above a wire pressing connecting block.
The U-shaped hanging ring is arranged on two sides of the body positioning sliding groove and is connected with one end of the wire pulling connecting block in a rotating mode, the U-shaped hanging ring can drive the wire pulling connecting block to move in the body positioning sliding groove, the other end of the wire pulling connecting block is connected with the wire pressing connecting block in a rotating mode, the wire pressing connecting block is arranged to be L-shaped, the whole body of the wire pressing connecting block is located in the U-shaped groove of the body, a pin roll is arranged in the middle of the wire pressing connecting block and is installed in a hole in the side wall of the U-shaped groove of the body in a rotating mode, the other end of the wire pressing block is connected with one end of the wire pressing block in a rotating mode, the other end of the wire pressing block is provided with the wire pressing block anti-skidding line groove, the wire pressing block anti-skidding line groove is arranged opposite to the body anti-skidding line groove and is used for being matched with and installing a clamping wire, the body anti-skidding line groove is arranged at the position of the wire clamping body, a uniformly distributed boss is arranged inside the line groove, an outlet angle is formed in one end of the wire clamping end of the wire pressing block is synchronously provided with the wire pressing line groove of the wire pressing block and is also uniformly distributed in the line groove.
The body anti-skid wire slot is an arc-shaped groove, and the wire pressing block anti-skid wire slot is also an arc-shaped groove.
The body positioning chute is arranged into an arc shape
An arc-shaped step surface is arranged at the position, matched with the anti-disengaging mechanism, of the wire pressing connecting block, and anti-disengaging teeth of the wire pressing connecting block are uniformly distributed on the arc-shaped step surface; one end of the anti-falling block of the anti-falling mechanism is synchronously provided with anti-falling teeth of the anti-falling block, and the anti-falling teeth are matched with the line pressing connecting block. One end of the wire pressing connection block, which is connected with the wire pressing block, is provided with a connection bowl nest, and the connection bowl nest is rotationally and fixedly connected with a connection ball head at one end of the wire pressing block; the connecting bowl nest is a C-shaped groove, and the connecting ball head is a round boss.
One end of the crank is provided with a crank mounting hole for connecting with the supporting shaft, the other end of the crank is provided with a crank handle, the crank is also provided with a crank shifting block, and the crank shifting block is positioned between the crank handle and the crank mounting hole and is arranged on one surface opposite to the crank handle. The crank pulling block is perpendicular to the crank. Through rotating the crank handle, the crank shifting block is enabled to stir the anti-falling block to rotate, so that the anti-falling block anti-falling teeth are separated from the anti-falling teeth of the wire pressing connection block, and free retraction of the wire pressing block is realized.
The strain clamp has the effects of clamping and holding the lead, is convenient to install, reliable in structure, reusable and high in practicability. The anti-falling block of the anti-falling mechanism is internally provided with a torsion spring, so that the clamping mechanism can be normally clamped and cannot act reversely.
The beneficial effects of the invention are as follows: 1. the appearance is simple, the structure is reliable, and the device can be reused; 2. the installation is simple and convenient, and the on-site installation does not need to screw bolts and press the bolts; 3. the parts for clamping the wires in the strain clamp are internally provided with the uniformly distributed bosses, so that the holding force of the strain clamp is greatly improved; 4. the strain clamp belongs to a tension-increasing and tightening structure, and the larger the tension of a wire is, the larger the holding force of the clamp to the wire is; 5. the strain clamp body is provided with the anti-disengaging mechanism, so that the condition of disconnection caused by the fact that the tension of a wire returns is prevented.
Drawings
FIG. 1 is a front elevational view of the structure of the present invention;
FIG. 2 is a front view of the clamping mechanism of the present invention;
FIG. 3 is a front view of the anti-slip mechanism of the present invention;
Fig. 4 is a schematic structural view of the wire clamp body in the clamping mechanism;
FIG. 5 is a schematic view of the structure of a wire press block in the clamping mechanism;
Fig. 6 is a schematic structural diagram of a wire connecting block in the clamping mechanism;
FIG. 7 is a schematic view of the structure of the crank in the anti-drop mechanism;
FIG. 8 is a schematic view of the structure of the anti-drop block in the anti-drop mechanism;
Wherein: 1. a wire clamp body; 2. a wire pressing block; 3. a wire pressing connecting block; 4. an anti-drop mechanism; 5. a stay wire connecting block; 6. a U-shaped hanging ring; 1-1, a body anti-skid wire slot; 1-2, a U-shaped groove of the body; 1-3, a housing of a release mechanism; 1-4, a body positioning chute; 2-1, a wire pressing block anti-skid wire slot; 2-2, connecting a ball head; 3-1, connecting bowl nest; 3-2, preventing the wire pressing connecting block from disengaging; 4-1, a crank; 4-2, a supporting shaft; 4-3, anti-falling blocks; 4-4, torsion springs; 4-1-1, crank mounting holes; 4-1-2, a crank poking block; 4-1-3, crank handle; 4-3-1, anti-falling teeth of the anti-falling block; 4-3-2, a U-shaped groove of the anti-falling block; 4-3-3, an anti-drop block mounting hole.
Detailed Description
The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 8, the anti-drop tension clamp for the overhead transmission line comprises a clamping mechanism and an anti-drop mechanism 4, wherein the clamping mechanism comprises a clamp body 1, a wire pressing block 2, a wire pressing connection block 3, a wire pressing connection block 5 and a U-shaped hanging ring 6, the clamp body 1 is provided with a body anti-slip slot 1-1 for installing and clamping wires, the body U-shaped slot 1-2 for installing the wire pressing connection block 3 and a body positioning slot 1-4 for installing the U-shaped hanging ring 6, one open end of the U-shaped hanging ring 6 is installed on two sides of the body positioning slot 1-4 and is rotationally connected with one end of the wire pressing connection block 5, the U-shaped hanging ring 6 can drive the wire pressing connection block 5 to move in the body positioning slot 1-4, the other end of the wire pressing connection block 5 is rotationally connected with the wire pressing connection block 3, the wire pressing connection block 3 is arranged in an L shape, the whole wire pressing connection block 3 is positioned in the body U-shaped slot 1, a pin is arranged in the middle of the wire pressing block 3, the wire pressing block 3 is rotationally installed in a hole on the side wall of the body U-shaped slot 1, the wire pressing block 2 is rotationally connected with one end of the wire pressing block 2, the other end of the wire pressing block 2 is also arranged in the wire pressing block 1-1, and the wire pressing block 2 is matched with the anti-slip slot 1, and the anti-slip slot 1 is arranged at one end of the wire pressing block 1; the anti-disengaging mechanism 4 comprises an anti-disengaging mechanism shell 1-3, an anti-disengaging block 4-3, a crank 4-1, a supporting shaft 4-2 and a torsion spring 4-4; the anti-disengaging mechanism shell 1-3 is fixed on the inner side of the U-shaped groove 1-2 of the wire clamp body 1, one end of the supporting shaft 4-2 passes through the wire clamp body 1 through threads, the other end of the supporting shaft passes through a mounting hole in the anti-disengaging mechanism shell 1-3, the crank 4-1 is mounted on one end of the supporting shaft 4-2 through a crank mounting hole 4-1-1 at one end of the crank, the anti-disengaging block 4-3 is arranged on the outer side of the wire clamp body 1, the anti-disengaging block mounting hole 4-3-3 on the anti-disengaging block 4-3 passes through the supporting shaft 4-2, the torsion spring 4-4 is arranged in the anti-disengaging block U-shaped groove 4-3-2, the torsion spring 4-4 circular ring passes through the supporting shaft 4-2, the other end of the torsion spring 4-4 is arranged on the anti-disengaging mechanism shell 1-3, and the anti-disengaging block 4-3 is arranged above the connecting block 3.
The body positioning sliding grooves 1-4 are arranged in an arc shape.
An arc-shaped step surface is arranged at the position, matched with the anti-disengaging mechanism 4, of the wire pressing connecting block 3, and anti-disengaging teeth 3-2 of the wire pressing connecting block are uniformly distributed on the arc-shaped step surface; one end of an anti-falling block of the anti-falling mechanism is synchronously provided with anti-falling block anti-falling teeth 4-3-1 which are matched with the wire pressing connecting block. One end of the wire pressing connection block 3, which is connected with the wire pressing block 2, is provided with a connection bowl nest 3-1, and the connection bowl nest 3-1 is rotatably connected with a connection ball head 2-2 at one end of the wire pressing block 2; the connecting bowl nest 3-1 is a C-shaped groove, and the connecting ball head 2-2 is a round boss.
One end of the crank 4-1 is provided with a crank mounting hole 4-1-1 for connecting with the supporting shaft 4-2, the other end of the crank 4-1 is provided with a crank handle 4-1-3, the crank 4-1 is also provided with a crank shifting block 4-1-2, and the crank shifting block 4-1-2 is positioned between the crank handle 4-1-3 and the crank mounting hole 4-1-1 and is arranged on the surface opposite to the crank handle 4-1-1. The crank pulling block 4-1-2 is perpendicular to the crank 4-1. Through rotating the crank handle, the crank shifting block is enabled to stir the anti-falling block to rotate, so that the anti-falling block anti-falling teeth are separated from the anti-falling teeth of the wire pressing connection block, and free retraction of the wire pressing block is realized.
The L-shaped wire pressing connection block 3 in the clamping mechanism is fixed in the U-shaped groove 1-2 of the wire clamp body 1 through pin shaft rotation, one end of the L-shaped wire pressing connection block is connected with the bowl nest 3-1 and hinged with the connection ball head 2-2 of the wire pressing block 2, the other end of the L-shaped wire pressing connection block is connected with the wire pulling connection block 5 through pin shaft rotation, one end of the wire pulling connection block 5 is connected with the wire pressing connection block 3 through pin shaft, the other end of the L-shaped wire pressing connection block is connected with the U-shaped hanging ring 6 through a fastener, and the U-shaped hanging ring 6 is fixed on the body positioning sliding groove 1-4 of the wire clamp body 1 in a sliding mode.
The anti-disengaging mechanism shell 1-3 in the anti-disengaging mechanism 4 is fixed on the inner side of the U-shaped groove 1-2 of the wire clamp body 1, one end of the supporting shaft 4-2 passes through a mounting hole on the wire clamp body 1 through threads, the other end of the supporting shaft passes through a mounting hole on the anti-disengaging mechanism shell 1-3, and the crank 4-1 is mounted at one end of the supporting shaft 4-2 through the crank mounting hole 4-1-1; the anti-falling block 4-3 is arranged inside the anti-falling mechanism shell 1-3 and penetrates through the supporting shaft 4-2 through the anti-falling block mounting hole 4-3-3; the torsional spring 4-4 is arranged in the anti-falling block U-shaped groove 4-3-2 of the anti-falling block 4-3, the torsional spring 4-4 penetrates through the supporting shaft 4-2, one end of a bracket of the torsional spring is arranged on the anti-falling mechanism shell 1-3, the other end of the bracket is arranged on the anti-falling block 4-3, and the anti-falling block anti-falling tooth 4-3-1 and the anti-falling tooth 3-2 of the line pressing connecting block are tightly attached.
The installation and use method of the strain clamp comprises the following steps: the wire pressing block 2 can move up and down by pulling the U-shaped hanging ring 6, and the wire is clamped by the wire pressing block anti-skid wire slot 2-1 and the body anti-skid wire slot 1-1; and the other end of the strain clamp is arranged in the line hardware string through a U-shaped hanging ring 6. The strain clamp disclosed by the invention belongs to a tension-over and tension-over type strain clamp, and the tension of a wire is larger, so that the positive pressure of the wire is larger when the clamp body 1 and the wire pressing block 2 jointly extrude the wire; in addition, in order to prevent tension of the wire from returning, the strain clamp is additionally provided with an anti-falling mechanism 4, and rotation of the wire pressing connecting block 3 is avoided by utilizing cooperation between the anti-falling block anti-falling teeth 4-3-1 and the wire pressing connecting block anti-falling teeth 3-2; simultaneously, the anti-disengaging mechanism 4 is further provided with a crank 4-1, and the free rotation of the wire pressing connecting block 3 can be realized by rotating the crank handle 4-1-3 and poking the anti-disengaging block 4-3 by utilizing the crank poking block 4-1-2. The outlet angle at one end of the wire slot is set to be an outwards inclined oblique angle, which is favorable for reducing the stress of the wire and enabling the wire to smoothly transition.
Claims (3)
1. The utility model provides an anticreep formula strain clamp for overhead transmission line which characterized in that: the wire clamp comprises a clamping mechanism and an anti-falling mechanism, wherein the clamping mechanism comprises a wire clamp body, a wire pressing block, a wire pressing connecting block, a wire pulling connecting block and a U-shaped hanging ring, a body anti-skidding wire groove for installing and clamping a wire is formed in the wire clamp body, a body U-shaped groove for installing the wire pressing connecting block and a body positioning chute for installing the U-shaped hanging ring are formed in the wire clamp body, the U-shaped hanging ring is sequentially connected with the wire pulling connecting block, the wire pressing connecting block and the wire pressing block, and the wire pressing block is arranged at the other end of the wire pressing block; the anti-disengaging mechanism comprises an anti-disengaging mechanism shell, an anti-disengaging block, a crank, a supporting shaft and a torsion spring; the anti-disengaging mechanism shell is fixed on the inner side of a U-shaped groove of the wire clamp body, one end of the supporting shaft passes through the wire clamp body through threads, the other end of the supporting shaft passes through a mounting hole on the anti-disengaging mechanism shell, the crank is mounted on one end of the supporting shaft through a crank mounting hole on one end of the crank and is positioned on the outer side of the wire clamp body, the anti-disengaging block is mounted inside the anti-disengaging mechanism shell, an anti-disengaging block mounting hole on the anti-disengaging block passes through the supporting shaft, the torsion spring is mounted in the U-shaped groove of the anti-disengaging block, a torsion spring round ring passes through the supporting shaft, and the other end of the torsion spring round ring is mounted on the anti-disengaging mechanism shell; the U-shaped hanging ring is arranged at the two sides of the body positioning sliding groove and is rotationally connected with one end of the wire-pulling connecting block, the U-shaped hanging ring can drive the wire-pulling connecting block to move in the body positioning sliding groove, the other end of the wire-pulling connecting block is rotationally connected with the wire-pressing connecting block, the wire-pressing connecting block is arranged into an L shape, the whole wire-pressing connecting block is positioned in the U-shaped groove of the body, a pin roll is arranged in the middle of the wire-pressing connecting block and rotationally arranged in a hole on the side wall of the U-shaped groove of the body, the other end of the wire-pressing connecting block is rotationally connected with one end of the wire pressing block, the other end of the wire pressing block is provided with a wire pressing block anti-skidding slot, the wire pressing block anti-skidding slot is oppositely arranged with the body anti-skidding slot and is used for cooperatively mounting and clamping wires, the wire clamping body is provided with body anti-skidding slots at the position of the wire clamping body, the wire clamping end of the wire pressing block is internally provided with uniformly distributed bosses, one end of the wire clamping end of the wire pressing block is synchronously provided with the wire pressing anti-skidding slots, and the uniformly distributed bosses are also arranged inside the wire slots; an arc-shaped step surface is arranged at the position, matched with the anti-disengaging mechanism, of the wire pressing connecting block, and anti-disengaging teeth of the wire pressing connecting block are uniformly distributed on the arc-shaped step surface; one end of an anti-falling block of the anti-falling mechanism is synchronously provided with anti-falling teeth of the anti-falling block, and the anti-falling teeth are matched with the wire pressing connecting block for action; one end of the crank is provided with a crank mounting hole for connecting with the supporting shaft, the other end of the crank is provided with a crank handle, the crank is also provided with a crank shifting block, and the crank shifting block is positioned between the crank handle and the crank mounting hole and is arranged on one surface opposite to the crank handle.
2. The anti-drop strain clamp for overhead transmission lines of claim 1, wherein the body positioning chute is configured as an arc.
3. An anti-drop strain clamp for overhead transmission lines according to claim 1 or 2, characterized in that: one end of the wire pressing connection block, which is connected with the wire pressing block, is provided with a connection bowl nest, the connection bowl nest is rotationally and fixedly connected with a connection ball at one end of the wire pressing block, the connection bowl nest is a C-shaped groove, and the connection ball is a round boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548480.XA CN114784734B (en) | 2022-05-20 | Anti-drop strain clamp for overhead transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210548480.XA CN114784734B (en) | 2022-05-20 | Anti-drop strain clamp for overhead transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114784734A CN114784734A (en) | 2022-07-22 |
| CN114784734B true CN114784734B (en) | 2024-07-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715634A (en) * | 2012-09-28 | 2014-04-09 | 株式会社永木精机 | Wire gripper |
| CN111295810A (en) * | 2017-11-02 | 2020-06-16 | 株式会社永木精机 | Wire clamping device |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715634A (en) * | 2012-09-28 | 2014-04-09 | 株式会社永木精机 | Wire gripper |
| CN111295810A (en) * | 2017-11-02 | 2020-06-16 | 株式会社永木精机 | Wire clamping device |
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