CN211790659U

CN211790659U - Jumper conductor spacer

Info

Publication number: CN211790659U
Application number: CN202020563496.4U
Authority: CN
Inventors: 罗栋梁; 邵冬亮; 龙晓慧; 王昊; 刘志强; 陈楠; 贾佳; 蒋陶宁; 刘洋; 许利伟; 张晴; 杨思宁; 赵晓慧; 王佳鹏
Original assignee: State Nuclear Electric Power Planning Design and Research Institute Co Ltd
Current assignee: State Nuclear Electric Power Planning Design and Research Institute Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-10-27
Anticipated expiration: 2030-04-15

Abstract

The application discloses a jumper spacer, which relates to the technical field of high-voltage power transmission and comprises at least two clamps and a connecting rod group connected with the at least two clamps; the connecting rod group comprises four connecting rods which are connected end to end, two opposite first vertexes in the connecting rod group are respectively connected with one clamp, and elastic pieces with variable lengths are connected between two opposite second vertexes in the connecting rod group. The jumper wire spacer provided by the embodiment of the application can effectively avoid abrasion of jumper wires and circuit fittings in windy weather.

Description

Jumper conductor spacer

Technical Field

The application relates to the technical field of high-voltage power transmission, in particular to a jumper spacer.

Background

The transmission is realized by boosting the electric energy generated by the generator by a transformer and then connecting the electric energy to a transmission line through control equipment such as a circuit breaker, and the overhead transmission line is a main way for transmitting the electric energy. The overhead transmission line is erected on the ground and mainly comprises a line tower, a ground wire, an insulator, line hardware, a stay wire, a tower foundation, a grounding device and the like. The jumper spacer is a fitting which is arranged on the split conductors and used for fixing the space between the split conductors so as to prevent the conductors from mutually whipping and inhibit breeze vibration and subspan vibration.

In the related art, the jumper spacer can be divided into two-split shapes, three-split shapes, four-split shapes, six-split shapes, eight-split shapes and the like according to the structure of the split conductor. The two-split spacer generally comprises two parts, namely a fixed chuck and a connecting rod, wherein the chuck and the connecting rod are connected by adopting a spherical hinge.

In the course of implementing the present application, the inventors found that the related art has at least the following problems: under the action of wind load and jumper moment, the problems of breakage, looseness, abrasion and the like often occur in the line hardware fitting, and the safety of the overhead transmission line is influenced.

Disclosure of Invention

The embodiment of the application provides a jumper wire spacer, which can effectively avoid abrasion of jumper wires and circuit fittings in windy weather. The specific technical scheme is as follows:

the embodiment of the application provides a jumper spacer, which comprises at least two clamps and a connecting rod group connected with the at least two clamps;

the connecting rod group comprises four connecting rods which are connected end to end, two opposite first vertexes in the connecting rod group are respectively connected with one clamp, and elastic pieces with variable lengths are connected between two opposite second vertexes in the connecting rod group.

In an implementation manner of the embodiment of the application, a first concave portion, which is concave back to the linkage, is arranged on one side of each clamp, which faces the linkage, and two connecting rods, which are connected with the clamps, in the linkage extend into the first concave portion;

each of the links is rotatable relative to the clamp about a first vertex connected to the clamp.

In one implementation manner of the embodiment of the application, each of the clamps includes a connecting portion and a fixing portion, which are connected, and the connecting portion is connected with the connecting rod group;

and a threading hole suitable for a lead to pass through is arranged between the connecting part and the fixing part.

In one implementation of the embodiment of the present application, the connection portion includes three connection ends, wherein,

the first connecting end is connected with the first end of the fixing part, the second connecting end is connected with the second end of the fixing part, and the third connecting end is connected with the connecting rod group.

In an implementation manner of the embodiment of the application, one side of the fixing portion, which faces the connecting portion, includes an arc-shaped section;

an arc-shaped transition section is arranged between the first connecting end and the second connecting end on one side of the connecting part facing the fixing part.

In an implementation manner of the embodiment of the application, a second concave portion is arranged at the second end of the fixing portion, and one end of the first bolt is fixed inside the second concave portion.

In an implementation manner of the embodiment of the present application, a through hole facing a second end of the fixing portion is disposed at the second connecting end of the connecting portion;

the other end of the first bolt penetrates through the through hole, extends out of the outer side of the connecting portion and is provided with a nut.

In an implementation manner of the embodiment of the application, the number of the clamps is two or four.

In an implementation manner of the embodiment of the application, when the number of the clamps is four, elastic members are respectively arranged between two opposite first vertexes and between two other opposite second vertexes in the linkage, and the elastic members are connected with each other.

In an implementation manner of the embodiment of the application, the clamp further comprises a rubber pad arranged on the inner wall of the threading hole.

The beneficial effects of the embodiment of the application at least comprise:

the utility model provides a wire jumper conductor spacer, connect two at least anchor clamps with relative two first summits in the linkage, and be connected with the changeable elastic component of length between relative two other second summits in the linkage, can be used to the wire jumper interval of different positions, and under the wind load effect, distance between the anchor clamps can be adjusted to linkage and elastic component structure, thereby effectively avoid wire jumper and circuit gold utensil wearing and tearing under strong wind weather, and the elastic force automatic recovery through the elastic component after wind load disappears to original position.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a jumper spacer according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a connection between the clamp and the connecting rod in FIG. 1 according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of another jumper spacer according to an embodiment of the present disclosure.

The reference numerals denote:

1. a clamp; 11. a connecting portion; 111. a first connection end; 112. a second connection end; 113. a third connection end; 114. an arc transition section; 115. a through hole; 12. a fixed part; 121. an arc-shaped section; 122. a second recess; 13. threading holes; 14. a rotating shaft; 15. a notch; 2. a linkage; 21. a connecting rod; 22. a first vertex; 23. a second vertex; 24. a connecting member; 3. an elastic member; 4. a first recess; 41. a side wall; 5. a first bolt; 6. a nut; 7. a second bolt; 8. a third bolt; 9. and (7) a rubber pad.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application provides a jumper spacer, as shown in fig. 1, including at least two clamps 1 and a linkage 2 connecting at least two clamps 1, and fig. 1 only illustrates that the linkage 2 connects two clamps 1. In other embodiments of the present application, as shown in fig. 3, there may be four clamps. In the present embodiment, the structure of each clamp is similar, and the structure of each link is also similar. Therefore, for clarity, like structures are labeled in only one place. It will be appreciated by those skilled in the art that the reference numerals are equally applicable to other identical or similar structures.

The clamps 1 are used for clamping the split conductors, and the linkage 2 is used for connecting the adjacent clamps 1 and maintaining the spacing between the split conductors. Four connecting rods 21 are arranged at the tail end of the linkage 2, two opposite first vertexes 22 in the linkage 2 are respectively connected with one clamp 1, and the other two opposite second vertexes 23 in the linkage 2 are connected with the elastic piece 3 with variable length. The elastic member 3 may be a spring or a device made of an elastic material such as rubber.

In the embodiment of the present application, the lengths of the two opposite links 21 in the linkage 2 are the same. The four links 21 may be connected in a parallelogram shape, and two adjacent links 21 may be rotatably connected, that is, the shape of the linkage 2 may be changed as the distance between the jigs 1 is changed.

For example, a first through hole (not shown in the drawings, and the actual position coincides with the second bolt 7) may be correspondingly disposed between two adjacent links 21, and the second bolt 7 sequentially passes through the first through holes of two adjacent links 21, so as to fix the two adjacent links 21. As shown in fig. 1, the positions of the four second bolts 7 are the positions of the four vertices of the linkage 2. The elastic members 3 can be fixedly connected to the linkage 2 by corresponding second bolts 7, and when the shape of the linkage 2 changes, the length of the elastic members 3 changes.

In some embodiments of the present application, the diameter of the first through hole may be slightly larger than the diameter of the second bolt 7, so that two adjacent connecting rods 21 may rotate around the second bolt 7.

As shown in fig. 1, under the action of wind load, the distance between the clamps 1 may change, which drives the distance between two first vertexes 22 connected to the clamps 1 in the linkage 2 to change, and the two adjacent links 21 rotate around the second bolt 7, so that the shape of the linkage 2 changes accordingly, thereby providing the degree of freedom in the left-right direction indicated by the arrow below. The elastic member 3 is connected between the other two opposite second vertices 23 of the linkage 2, and the length of the elastic member 3 can be changed to provide a degree of freedom in the up-and-down direction as indicated by the arrow on the right side, so that the clamp 1 can be restored to its original position after the wind load disappears.

In the embodiment of the present application, the direction of the length change of the elastic member 3 is perpendicular to the line direction between the two clamps, thereby providing a degree of freedom in two directions perpendicular to each other. It should be noted that, in other embodiments of the present application, the direction of the length change of the elastic element may also be parallel to the direction of the connection line between the two clamps, that is, the elastic element may also be connected between two opposite first vertices connected to the clamps, so that under the action of the wind load, the distance change between the clamps may drive the length of the elastic element to change, and after the wind load disappears, the elastic element drives the clamps to return to the original positions.

In some embodiments of the present application, as shown in fig. 3, the jumper spacer may further include four clamps 1, i.e., one clamp 1 may be connected to each vertex of the linkage 2. When the number of the clamps 1 connected to the linkage 2 is four, the elastic members 3 with variable lengths may be respectively connected between two first vertices 22 opposite to the linkage 2 and between two other second vertices 23 opposite to the linkage 2. Four elastic members 3 may be provided and the four elastic members 3 may be connected to each other. That is, an elastic member 3 is connected between each vertex of the grouping 2 and an intersection of diagonal lines of the grouping 2. Illustratively, a connecting member 24 may be disposed at an intersection of diagonal lines of the linkage 2, and one end of each elastic member 3 may be fixedly connected to one second bolt 7 and the other end is fixedly connected to one connecting member 24.

In the embodiment of the present application, as shown in fig. 2, a side of each clamp 1 facing the grouping 2 may be provided with a first recess 4 recessed away from the grouping 2. Two links 21 of the linkage 2 connected to the jig 1 may extend into the interior of the first recess 4. In some embodiments of the present application, the first recess 4 may be provided as a groove, hole, or other shape that can accommodate the connecting rod 21.

For example, the first recess 4 may include two opposite sidewalls 41, and the two sidewalls 41 may be correspondingly provided with second through holes (not shown in the drawings). And the second through hole provided on the first recess 4 is provided corresponding to the first through hole between two adjacent links 21.

The second bolt 7 at the first vertex 22 connected with the clamp 1 can pass through the first through hole between two adjacent connecting rods 21 and the second through holes on the two side walls 41 to fixedly connect the linkage 2 with the clamp 1. The second bolt 7 (or second through hole) may be provided at a position of the side wall 41 farther from the edge so that the two links 21 connected to the clip 1 may protrude into the inside of the first recess 4.

Further, the distance between the two side walls 41 of the first recess 4 (i.e. the thickness of the first recess) may be slightly larger than the thickness of the linkage 2, and the diameter of the first through hole may be slightly larger than the diameter of the second bolt 7. In this way, the corresponding link 21 connected to the jig 1 is rotatable about the second bolt 7 (or the first vertex 22) relative to the jig 1 inside the first recess 4, and also relative rotation between two adjacent links 21 in the linkage 2 is possible. Alternatively, the diameter of the second through-hole provided on both side walls 41 of the first recess 4 may be slightly larger than the diameter of the second bolt 7 so that the jig 1 can rotate about the second bolt 7.

In the embodiment of the present application, as shown in fig. 1, the clamp 1 may include a connecting portion 11 and a fixing portion 12 connected to each other. The first recess 4 may be provided in the connection portion 11. The connecting portion 11 is connected to the linkage 2. A threading hole 13 adapted to pass a wire (not shown) may be provided between the connection portion 11 and the fixing portion 12. For example, the cross section of the threading hole 13 may be provided in a circular shape.

The clamp 1 can also comprise a rubber pad 9 arranged along the inner wall of the threading hole 13. The rubber pad 9 can insulate the clamp 1 from the wire and can also reduce the swing amplitude of the wire in the clamp 1. As shown in fig. 1, the clip 1 includes two rubber pads 9 connected to the connecting portion 11 and the fixing portion 12, respectively. The two rubber pads 9 are opposed to each other so that the wire can be in contact with the rubber pads 9 at both sides of the threading hole 13.

In other embodiments of the present application, the rubber pad may further include two portions having the same shape as the connecting portion and the fixing portion, respectively, and the rubber pad is sleeved on the connecting portion and the fixing portion, respectively. Illustratively, a part of the rubber pad is in an arc sleeve shape with two open ends, is matched with the shape of the fixed part and is sleeved on the fixed part; the other part is in a Y-shaped sleeve shape with three open ends, is matched with the shape of the connecting part and is sleeved on the connecting part.

Correspondingly, as shown in fig. 1, the connection part 11 may include three connection ends. The first connecting end 111 can be connected to the first end of the fixing portion 12, the second connecting end 112 can be connected to the second end of the fixing portion 12, and the third connecting end 113 can be connected to the linkage 2. The center lines of the first connecting end 111, the second connecting end 112 and the third connecting end 113 may have a certain included angle therebetween, so that the connecting portion 11 is substantially Y-shaped.

A rotation shaft 14 (e.g., formed of a pin) may be disposed between the first connection end 111 and the first end of the fixing portion 12, and the first end of the fixing portion 12 may be rotated about the rotation shaft 14 to open the threading hole 13 so that the wire passes through the inside of the threading hole 13.

The side of the fixing portion 12 facing the connecting portion 11 may include an arc-shaped section 121. Correspondingly, an arc-shaped transition section 114 may be disposed between the first connection end 111 and the second connection end 112 on a side of the connection portion 11 facing the fixing portion 12.

As shown in fig. 1, the concave direction of the curved transition section 114 is far away from the fixing portion 12, and the concave direction of the curved section 121 is far away from the connecting portion 11. That is, the concave directions of the curved transition section 114 and the curved section 121 are away from each other, so that the threading hole 13 is formed between the connection part 11 and the fixing part 12.

In the embodiment of the present application, a gap 15 may be provided between the fixing portion 12 and the connecting portion 11 for adjusting the size of the threading hole 13 to allow wires or wire bundles with different diameters to pass through. As shown in FIG. 1, the gap 15 may be disposed between the second connecting end 112 and the second end of the fixation section 12.

Further, a second recess 112 may be provided at a second end of the fixing portion 12, and the second recess 112 may be groove-shaped or hole-shaped. One end of the first bolt 5 may be fixed inside the second recess 112 and the other end may pass through the fixing portion 12. A third through hole (not shown in the figure, and the actual position coincides with the third bolt 8) may be correspondingly disposed on the second recessed portion 112 and at an end of the first bolt 5 extending into the second recessed portion 112, and the axial direction of the third through hole may be perpendicular to the axial direction of the second recessed portion 112. The third bolt 8 can fix the first bolt 5 inside the second recessed portion 112 through the third through hole.

The second connection end 112 of the connection part 11 may be provided with a through hole 115 facing the second end of the fixing part 12, and the other end of the first bolt 5 may protrude to the outside of the connection part 11 through the through hole 115 and be provided with a nut 6. The nut 6 may abut against an outer side of the connection portion 11 to fix the shape of the threading hole 13.

In some embodiments of the present application, the inner wall of the through hole 115 may be provided with a thread that is engageable with a thread on the first bolt 5 to allow the first bolt 5 to move within the through hole. The size of the threading hole 13 can be adjusted by screwing or unscrewing the nut 6. When the nut 6 is disengaged from the first bolt 5, the threading hole 13 can be opened.

In the present application, it is to be understood that the terms "first", "second", "third", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated.

The above description is only exemplary of the present application and should not be taken as limiting the scope of the present application, as any modifications, equivalents, improvements and the like that are within the spirit and principle of the present application should be included in the present application.

Claims

1. The jumper spacer is characterized by comprising at least two clamps (1) and a connecting rod group (2) for connecting the at least two clamps (1);

the connecting rod group (2) comprises four connecting rods (21) which are connected end to end, two first opposite vertexes (22) in the connecting rod group (2) are respectively connected with one clamp (1), and an elastic piece (3) with variable length is connected between two second opposite vertexes (23) in the connecting rod group (2).

2. The jumper spacer according to claim 1, characterized in that each clamp (1) is provided with a first recess (4) recessed away from the grouping (2) on the side facing the grouping (2), and two links (21) of the grouping (2) connected to the clamp (1) protrude into the first recess (4);

each link (21) is rotatable relative to the clamp (1) about a first vertex (22) connected to the clamp (1).

3. The jumper spacer according to claim 1, wherein each clamp (1) comprises a connecting portion (11) and a fixing portion (12) connected, the connecting portion (11) being connected to the linkage (2);

a threading hole (13) suitable for a lead to pass through is arranged between the connecting part (11) and the fixing part (12).

4. Jumper spacer according to claim 3 wherein the connection portion (11) comprises three connection ends, wherein,

the first connecting end (111) is connected with the first end of the fixing part (12), the second connecting end (112) is connected with the second end of the fixing part (12), and the third connecting end (113) is connected with the connecting rod group (2).

5. The jumper spacer according to claim 4, wherein the side of the fixing portion (12) facing the connecting portion (11) comprises an arc-shaped section (121);

an arc-shaped transition section (114) is arranged between the first connecting end (111) and the second connecting end (112) on one side of the connecting part (11) facing the fixing part (12).

6. The jumper spacer according to claim 4, wherein a second recess (122) is provided at the second end of the fixing portion (12), and one end of the first bolt (5) is fixed inside the second recess (122).

7. The jumper spacer according to claim 6, wherein a through hole (115) is provided at the second connection end (112) of the connection part (11) toward the second end of the fixing part (12);

the other end of the first bolt (5) penetrates through the through hole (115) to extend out of the connecting part (11) and is provided with a nut (6).

8. The jumper spacer according to claim 1, characterized in that the clamps (1) are two or four.

9. The jumper spacer according to claim 8, wherein when the number of the clamps (1) is four, the elastic members (3) are respectively arranged between two first opposite vertexes (22) and two second opposite vertexes (23) of the linkage (2), and the elastic members (3) are connected with each other.

10. The jumper spacer according to claim 3, wherein the clamp (1) further comprises a rubber pad (9) disposed along an inner wall of the threading hole (13).