CN210577671U

CN210577671U - Effectively anti windage yaw's strain insulator combination cluster structure that dangles

Info

Publication number: CN210577671U
Application number: CN201921863744.0U
Authority: CN
Inventors: 王大鹏; 石栋; 谢涛; 袁祖慧; 牛景平
Original assignee: State Grid Anhui Electric Power Co Ltd; Chizhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Current assignee: State Grid Anhui Electric Power Co Ltd; Chizhou Power Supply Co of State Grid Anhui Electric Power Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-05-19
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to an effective windage yaw resistant overhanging strain combination string structure, which comprises a windage yaw resistant fixing frame, a right-angle hanging plate, a triangular connecting plate, two strain strings, a jumper wire bracket and a jumper wire string, wherein the windage yaw resistant fixing frame is arranged below the middle section of a cross arm and is arranged along the direction of a vertical line; the wind deflection resisting fixing frame comprises a top edge, a first connecting plate and a second connecting plate which are symmetrically arranged above two ends of the top edge, a first side edge and a second side edge which are symmetrically arranged below two ends of the top edge, and a bottom plate connected between the first side edge and the second side edge. According to the technical scheme provided by the utility model, the utility model discloses can restrain windage yaw effectively, reduce windage yaw trouble's probability of occurrence, reduce the loss that causes because of the windage yaw trouble takes place, guarantee transmission line's safety and stability moves.

Description

Effectively anti windage yaw's strain insulator combination cluster structure that dangles

Technical Field

The utility model relates to a high tension transmission line shaft tower design technical field, concretely relates to strain insulator combination cluster structure that dangles of effective windage yaw resistance.

Background

With the rapid development of the economic society and the continuous increase of the power load, the ultrahigh voltage transmission line engineering develops rapidly. Because the extra-high voltage is high in grade and long in transmission distance, the transmission line is very easily influenced by the environment and the weather. In recent years, severe weather such as strong wind occurs frequently, and overhung wind of a tower is easily caused by overlarge instantaneous wind speed. The damage caused by windage yaw of the power transmission line is manifold, light persons have flashover and tripping, heavy persons have hardware fittings and insulators damaged, wires are broken, pole tower bolts are loosened, and even the tower falls. And the reclosing is not easy to succeed after the windage yaw flashover accident happens, even the accident is further expanded, and great harm is caused to the safe and stable operation of the power grid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an effective anti windage yaw's strain insulator-combination string structure that dangles, this strain insulator-combination string structure that dangles can restrain windage yaw effectively, reduces windage yaw trouble's emergence probability, reduces the loss because of taking place windage yaw trouble and cause, ensures transmission line's safety and stability operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an effectively windage yaw resistant overhanging strain combination string structure comprises a windage yaw resistant fixing frame, a right-angle hanging plate, a triangular connecting plate, a strain string, a jumper wire bracket and a jumper wire string, wherein the windage yaw resistant fixing frame is arranged below the middle section of a cross arm and is arranged along the direction of a vertical line; the wind deflection resisting fixing frame comprises a top edge, a first connecting plate and a second connecting plate which are symmetrically arranged above two ends of the top edge, a first side edge and a second side edge which are symmetrically arranged below two ends of the top edge, and a bottom plate connected between the first side edge and the second side edge.

Furthermore, the wind-deflection-resistant fixing frame is made of angle steel.

Further, as shown in fig. 1, the top edge, the first side edge and the second side edge form an isosceles triangle, the top edge is arranged in the horizontal direction, the first side edge and the second side edge are located below the top edge, and two angles on the triangle range from 20 ° to 40 °. The bottom plate is positioned in an included angle formed by the first side edge and the second side edge.

Furthermore, the bottom plate is provided with a mounting hole.

Furthermore, the jumper string comprises a connecting fitting connected with the jumper support, a jumper insulator suspension string arranged below the connecting fitting and a wire clamp arranged below the jumper insulator suspension string.

Further, the number of the tension string is two.

According to the technical scheme provided by the utility model, the utility model discloses can restrain windage yaw effectively, reduce windage yaw trouble's probability of occurrence, reduce the loss that causes because of the windage yaw trouble takes place, guarantee transmission line's safety and stability moves.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention along the line direction;

FIG. 2 is a schematic diagram of the structure of the present invention in a vertical line direction;

fig. 3 is a schematic diagram of the structure of the jumper string.

Wherein:

1. the cable comprises a top edge, 2, a first side edge, 3, a second side edge, 4, a first connecting plate, 5, a second connecting plate, 6, a bottom plate, 7, a right-angle hanging plate, 8, a triangular connecting plate, 9, a strain insulator string, 10, a connecting hardware fitting, 11, a jumper insulator suspension string, 12 and a wire clamp.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

the overhanging strain combination string structure capable of effectively resisting windage yaw comprises a windage yaw fixing frame, a right-angle hanging plate 7, a triangular connecting plate 8, a strain string 9, a jumper support and a jumper string, wherein the windage yaw fixing frame is installed below the middle section of a cross arm and is arranged along the direction of a vertical line, the right-angle hanging plate 7 and the triangular connecting plate 8 are installed at the bottom of the windage yaw fixing frame, the strain string 9 is installed on the triangular connecting plate 8 and is arranged along the direction of a parallel line, the jumper support is installed below the end part of the cross arm. The triangular yoke plate 8 is used for installing a tension string 9. The number of the tension string 8 is two.

The windage yaw resisting fixing frame comprises a top edge 1, a first connecting plate 4 and a second connecting plate 5 which are symmetrically arranged above two ends of the top edge 1, a first side edge 2 and a second side edge 3 which are symmetrically arranged below two ends of the top edge 1, and a bottom plate 6 connected between the first side edge 2 and the second side edge 3. The top edge 1, the first side edge 2 and the second side edge 3 enclose an isosceles triangle, and the range of two angles on the isosceles triangle is 20-40 degrees. As shown in FIG. 1, the top edge 1 is arranged horizontally, and the first side edge 2 and the second side edge 3 are located below the top edge 1. The top edge 1 enables the acting force of the connecting plate I4 and the connecting plate II 5 on the tower body cross arm to be vertically downward. The connecting plate I4 and the connecting plate II 5 are both provided with bolt holes used for being connected with the cross arm, and the stress conditions of the connecting plate I4 and the connecting plate II 5 are the same. The first side edge 2 and the second side edge 3 which are symmetrically arranged can ensure balanced stress, and the aim of inhibiting windage yaw is fulfilled. Preferably, the wind deflection resistant fixing frame is made of angle steel. The bottom plate is positioned in an included angle formed by the first side edge and the second side edge. And a mounting hole is formed in the bottom plate 6 and used for mounting and fixing the right-angle hanging plate 7. The right-angle hanging plate 7 is connected to the triangular connecting plate 8 through bolts.

Further, as shown in fig. 3, the jumper string includes a connection fitting connected to the jumper support, a jumper insulator overhang string disposed below the connection fitting, and a wire clamp disposed below the jumper insulator overhang string. The wire clamp is used for hanging a jumper wire. The strain combination string structure of dangling need adopt the wire jumper to switch on, wire jumper itself is electrified body, needs satisfy electric clearance with the body of the tower. On the basis of arranging of above-mentioned windage yaw resisting mount and strain insulator string, the utility model discloses a set up the wire jumper support at the cross arm head, install the wire jumper support with the wire jumper string on, can enough realize that the wire switches on the function, can satisfy the electric clearance requirement again.

The utility model discloses at the direction parallel with the circuit, arrange the strain insulator-string along the circuit direction promptly, can realize that the wire is insulating with the body of the tower to make between circuit and the body of the tower apart from no longer receiving clearance distance control, only need satisfy under strong wind operating mode strain insulator-string and body of the tower contactless can. The utility model discloses set up an anti-wind inclined to one side mount with circuit vertically orientation, be used for connecting cross arm and strain insulator-string on the one hand, on the other hand can also restrain the windage inclined to one side, avoids the emergence of the fault tripping event because of the windage inclined to one side arouses. The utility model discloses be applied to on the transmission line tangent tower, through setting up the inclined to one side mount of anti-wind of triangle-shaped as shown in fig. 1 that arranges along perpendicular line direction to set up the strain insulator-string that is on a parallel with the line direction in the middle below of the inclined to one side mount of anti-wind, make the utility model discloses both have the atress characteristics of the cluster of dangling, have the insulating advantage of strain insulator-string again to wire string point-to-ground height when can reducing the adoption ordinary cluster of dangling, and under the extreme windy weather condition, can effectively restrain the windy partially.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. The utility model provides an effective anti windage yaw's strain insulator combination cluster structure that dangles which characterized in that: the tension device comprises a wind deflection resistant fixing frame, a right-angle hanging plate, a triangular connecting plate, a plurality of tension strings, a jumper wire support and a jumper wire string, wherein the wind deflection resistant fixing frame is arranged below the middle section of a cross arm and is arranged along the direction of a vertical line; the wind deflection resisting fixing frame comprises a top edge, a first connecting plate and a second connecting plate which are symmetrically arranged above two ends of the top edge, a first side edge and a second side edge which are symmetrically arranged below two ends of the top edge, and a bottom plate connected between the first side edge and the second side edge.

2. The effectively windage yaw resistant catenary tension combination string structure of claim 1, wherein: the wind deflection resistant fixing frame is made of angle steel.

3. The effectively windage yaw resistant catenary tension combination string structure of claim 1, wherein: the top edge, the first side edge and the second side edge form an isosceles triangle in an enclosing mode, the top edge is arranged in the horizontal direction, the first side edge and the second side edge are located below the top edge, the range of two angles on the isosceles triangle is 20-40 degrees, and the bottom plate is located in an included angle formed by the first side edge and the second side edge.

4. The effectively windage yaw resistant catenary tension combination string structure of claim 1, wherein: the bottom plate is provided with a mounting hole.

5. The effectively windage yaw resistant catenary tension combination string structure of claim 1, wherein: the jumper string comprises a connecting fitting connected with the jumper support, a jumper insulator suspension string arranged below the connecting fitting and a wire clamp arranged below the jumper insulator suspension string.

6. The effectively windage yaw resistant catenary tension combination string structure of claim 1, wherein: the number of the tension string is two.