CN210201444U

CN210201444U - Circuit breaking structure

Info

Publication number: CN210201444U
Application number: CN201921302545.2U
Authority: CN
Inventors: Hanfeng Luo; 骆汉丰; Xuyue Zhu; 朱绪跃; Gaochao Zhao; 赵高超; Jinkai Wang; 王晋凯
Original assignee: NR Electric Co Ltd; NR Engineering Co Ltd; Changzhou NR Electric Power Electronics Co Ltd
Current assignee: NR Electric Co Ltd; NR Engineering Co Ltd; Changzhou NR Electric Power Electronics Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-03-27
Anticipated expiration: 2029-08-12

Abstract

The utility model relates to a circuit breaking structure, which comprises a strain clamp, a suspension insulator string and a connecting hardware fitting, wherein the strain clamp is hung on a lead in pairs, and two ends of the suspension insulator string are respectively connected with the corresponding strain clamp through the connecting hardware fitting; the strain clamp is a bolt type strain clamp for bare wires or a wedge-shaped strain clamp for insulated wires; the link fitting comprises a hanging plate, a hanging ring and a limiting pin, one end of the hanging plate is fixedly connected with the strain clamp, the other end of the hanging plate is fixedly connected with the hanging ring through the limiting pin, and the hanging ring is fixedly connected with one end of the suspension insulator string. The utility model discloses not only can realize the circuit fast and cut off, practice thrift engineering time and reduce construction cost moreover.

Description

Circuit breaking structure

Technical Field

The utility model particularly relates to a circuit breaking structure belongs to medium and high voltage transmission line technical field.

Background

With the construction and development of medium and high voltage transmission lines, the field construction and maintenance have the tendency of simplification and rapidness, so that the realization of rapid disconnection of the lines becomes one of important links.

When the line needs to be disconnected and extended to be led out, the existing line disconnection mode often needs to establish a pole tower separately to fix the disconnected conducting wires on the pole tower respectively and then lead the wires downwards. The line breaking mode is inconvenient to use, long in construction time and high in construction cost.

Disclosure of Invention

The utility model aims at: the utility model provides a not only can realize the circuit fast and cut off, practice thrift engineering time moreover and reduce construction cost's circuit structure of cutting off.

In order to achieve the above purpose, the technical scheme of the utility model is that: a circuit breaking structure is characterized in that: the strain clamp comprises strain clamps, suspension insulator strings and connecting hardware fittings, wherein the strain clamps are hung on the conducting wires in pairs, and the two ends of each suspension insulator string are connected with the corresponding strain clamp through the connecting hardware fittings respectively.

In the above technical scheme, the strain clamp is a bolt-type strain clamp for a bare conductor or a wedge-shaped strain clamp for an insulated conductor.

In the above technical scheme, the link fitting includes a link plate, a link ring and a limit pin, one end of the link plate is fixedly connected with the strain clamp, the other end of the link plate is fixedly connected with the link ring through the limit pin, and the link ring is fixedly connected with one end of the suspension insulator string.

In the technical scheme, one end of the limiting pin is provided with a nut, and the end part of the limiting pin is provided with a locking pin on the outer side of the nut.

In the technical scheme, the link plate is the right angle link plate, and the one end of right angle link plate is equipped with the mounting hole, and the other end is equipped with the U-shaped groove, and the fastener and the strain clamp fixed connection in the mounting hole are passed through to the one end of right angle link plate, and the link inserts the U-shaped inslot of right angle link plate and passes through spacer pin fixed connection.

In the above technical scheme, the hanging ring is a U-shaped hanging ring.

In the technical scheme, the suspension insulator string is composed of 2-5 suspension insulators.

The utility model discloses the positive effect who has is: adopt the utility model discloses a behind the circuit structure of breaking, because the utility model discloses a strain clamp, suspension insulator string, link fitting, the strain clamp hangs the dress in pairs on the wire, and suspension insulator string's both ends are connected with the strain clamp that corresponds through link fitting respectively, during the use, with strain clamp pretension in pairs on the wire, suspension insulator string passes through link fitting and is connected with the strain clamp that corresponds, one side of fine setting strain clamp makes each component connect into the cluster, fasten strain clamp one side earlier promptly and be used for the bolt of fixed wire, move the other side of strain clamp with this in the opposite direction and strain insulator string makes its tight as far as possible, then fasten the bolt of the fixed wire on this strain clamp, break off the circuit and realize the breaking of circuit. The utility model can be used for wire extension or wire damage maintenance, after the structure of the utility model is adopted, one of the two lines can be quickly cut off to facilitate on-site construction, thereby saving construction time and reducing construction cost; secondly, the site operation is easy to operate, and the quality of the accessories and the construction process are stable.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention;

fig. 2 is a schematic diagram of the breaking effect of the breaking structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, but is not limited thereto.

As shown in fig. 1, 2 and 3, a circuit breaking structure comprises a strain clamp 1, a suspension insulator string 2 and a connecting hardware fitting 3, wherein the strain clamp 1 is hung on a conductor in pair, and two ends of the suspension insulator string 2 are connected with the corresponding strain clamp 1 through the connecting hardware fitting 3 respectively.

Strain clamp 1 is the bolt type strain clamp that is used for bare conductor, perhaps is the wedge strain clamp that is used for insulated conductor.

As shown in 3, in order to realize the quick connection of strain clamp and suspension insulator string, link fitting 3 includes link plate 31, link 32 and stop pin 33, the one end and the strain clamp 1 fixed connection of link plate 31, the other end passes through stop pin 33 and link 32 fixed connection, the one end fixed connection of link 32 and suspension insulator string 2.

As shown in fig. 3, in order to prevent the limit pin from loosening and further lock the limit pin, a nut is arranged at one end of the limit pin 33, and a locking pin is arranged at the end of the limit pin 33 and on the outer side of the nut.

Further, in order to realize the utility model discloses the rapid Assembly of each part, link plate 31 is the right angle link plate, and the one end of right angle link plate is equipped with the mounting hole, and the other end is equipped with the U-shaped groove, and fastener and strain clamp 1 fixed connection in the mounting hole are passed through to the one end of right angle link plate, and link 32 inserts the U-shaped inslot of right angle link plate and passes through spacing pin 33 fixed connection. The hanging ring 32 is a U-shaped hanging ring.

Suspension insulator chain 2 comprises 2 ~ 5 suspension insulators, specifically by the port voltage difference of break-make circuit and factor such as filthy grade confirm, for example, be arranged in 10kV transmission line, can comprise 2 ~ 3 suspension insulators.

The utility model discloses the quick circuit among the following voltage transmission line of 220kV that can be applicable to built on stilts steel-cored aluminum strand wires breaks.

The iron parts such as the connecting hardware fitting and the like in the utility model adopt the hot galvanizing technology to make the surface thereof have the antirust and anticorrosive layer.

The utility model discloses a use: as shown in fig. 1, when the medium-high voltage transmission line is in normal transmission and the conductor is complete, the strain clamps are pre-tightened on the conductor 4 in pairs, the suspension insulator string is connected with the corresponding strain clamp into a string through the connecting hardware fitting, the bolt used for fixing the conductor 4 on one side of the strain clamp is firstly tightened, then the other side of the strain clamp moves in the opposite direction, so that the insulator string is tightened to be as tight as possible, and then the bolt used for fixing the conductor on the strain clamp is tightened.

When the medium-high voltage transmission line needs to be cut off, hydraulic pliers or other wire cutting tools are adopted to cut off the conducting wires at the central positions of the two strain clamps. Two strain clamps can take place to rotate under the pulling force effect of both sides wire, make insulator string, link fitting, wire etc. in-line distribution, thereby the fracture separation of wire is certain angle with the straight line simultaneously and realizes the breaking of circuit, as shown in fig. 2. The utility model can be used for wire extension or wire damage maintenance, after the structure of the utility model is adopted, one of the two lines can be quickly cut off to facilitate on-site construction, thereby saving construction time and reducing construction cost; secondly, the site operation is easy to operate, and the quality of the accessories and the construction process are stable.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A circuit breaking structure, characterized in that: it comprises a tension clamp (1), a suspension insulator string (2), and a connecting hardware (3), and the tension clamp (1) is hung in pairs on on the wire, and the two ends of the suspension insulator string (2) are respectively connected with the corresponding tension clips (1) through the connecting fittings (3).

2. The circuit breaking structure according to claim 1, wherein the tension clamp (1) is a bolt-type tension clamp for bare conductors, or a wedge-shaped tension clamp for insulated conductors wire clip.

3 . The circuit breaking structure according to claim 1 , wherein the connecting hardware ( 3 ) comprises a hanging plate ( 31 ), a hanging ring ( 32 ) and a limit pin ( 33 ), and the hanging plate ( One end of 31) is fixedly connected to the tension clamp (1), and the other end is fixedly connected to the hanging ring (32) through the limit pin (33), and the hanging ring (32) is connected to one end of the suspension insulator string (2). Fixed connection.

4. The circuit breaking structure according to claim 3, characterized in that: one end of the limiting pin (33) is provided with a nut, and the end of the limiting pin (33) is located on the outer side of the nut with a nut. Lock pin.

5. The circuit breaking structure according to claim 3, characterized in that: the hanging plate (31) is a right-angle hanging plate, one end of the right-angle hanging plate is provided with a mounting hole, and the other end is provided with a U-shaped groove, and the right-angle hanging plate is provided with a mounting hole. One end of the plate is fixedly connected with the tension clamp (1) through the fastener in the installation hole, and the hanging ring (32) is inserted into the U-shaped groove of the right-angle hanging plate and fixedly connected by the limit pin (33).

6. The circuit breaking structure according to claim 3, wherein the hanging ring (32) is a U-shaped hanging ring.

7 . The circuit breaking structure according to claim 1 , wherein the suspension insulator string ( 2 ) consists of 2 to 5 suspension insulators. 8 .