An interphase spacer rod hardware for a power transmission line

Abstract

The utility model discloses an interphase spacer rod hardware for power transmission line, for connecting the wire clamp and interphase composite insulator of power transmission line, include: the first connecting portion, the bending portion and the second connecting portion of connecting in proper order, the first connecting portion is used for rotatably connecting the wire clamp of power transmission line, the second connecting portion is used for connecting interphase composite insulator, when the wire clamp of first connecting portion connects and the second connecting portion connects interphase composite insulator, first connecting portion and second connecting portion all are located on the axis of interphase composite insulator, wherein, when using on vertical double split conductor, interphase composite insulator vertical wire clamp, when using on horizontal double split conductor, interphase composite insulator and wire clamp are located on the same axis. The utility model takes first connecting portion as pivot and rotates interphase spacer rod hardware, so that interphase spacer rod hardware adapts to vertical double split conductor, horizontal double split conductor two different double split conductor.

Description

Technical Field

[0001] This utility model relates to the field of power transmission lines, and in particular to a phase-to-phase spacer fitting for power transmission lines. Background Technology

[0002] In high-voltage and ultra-high-voltage transmission lines, it is necessary to control conductor spacing to prevent corona discharge, vibration and wear, and composite phase-to-phase spacers are key equipment. They consist of phase-to-phase composite insulators and matching connecting hardware, and are installed between phase conductors. They stabilize the conductor spacing through structural strength and insulation, and resist the effects of strong winds, icing and other factors.

[0003] Transmission conductors are classified into single-conductor and double-split types. Double-split conductors are widely used due to their ability to increase transmission capacity and reduce losses, and they are available in both vertical and horizontal arrangements to suit different installation scenarios. However, the double-split composite phase-to-phase spacer hardware currently manufactured by various companies has limited functionality. Different manufacturers use only two types of double-split composite phase-to-phase spacer hardware, which can only be used on vertical double-split conductors or only on horizontal double-split conductors. This increases the complexity and cost of construction and procurement, easily leads to model confusion affecting efficiency, and also increases operation and maintenance costs and management difficulty. Its limited adaptability urgently needs to be addressed. Utility Model Content

[0004] The purpose of this invention is to provide a phase-to-phase spacer fitting for transmission lines, aiming to solve the problem that existing phase-to-phase spacer fittings can only be used on vertical double-split conductors or only on horizontal double-split conductors.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A phase-to-phase spacer fitting for transmission lines is provided, used to connect the line clamps and phase-to-phase composite insulators of the transmission line. It includes: a first connecting part, a bent part, and a second connecting part connected in sequence. The first connecting part is used to rotatably connect the line clamps of the transmission line, and the second connecting part is used to connect the phase-to-phase composite insulator. When the first connecting part connects to the line clamp and the second connecting part connects to the phase-to-phase composite insulator, both the first connecting part and the second connecting part are located on the axis of the phase-to-phase composite insulator. Specifically, when used on a vertical double-split conductor, the phase-to-phase composite insulator is perpendicular to the line clamp; when used on a horizontal double-split conductor, the phase-to-phase composite insulator and the line clamp are located on the same axis.

[0006] Furthermore, the first connecting part is provided with a first connecting hole, and the first connecting hole is connected to the wire clamp by a bolt.

[0007] Furthermore, the second connecting part is provided with at least one second connecting hole, and the second connecting hole is connected to the phase-to-phase composite insulator by bolts.

[0008] Furthermore, the bending portion includes: a first inclined portion, an extension portion, and a second inclined portion, one end of the first inclined portion being connected to the first connecting portion; one end of the extension portion being connected to the other end of the first inclined portion; one end of the second inclined portion being connected to the extension portion, and the other end being connected to the second connecting portion.

[0009] Furthermore, the first inclined portion is inclined toward the direction of the second connecting portion, and the second inclined portion is inclined toward the direction of the first connecting portion. When the first connecting portion connects to the clamp and the second connecting portion connects to the phase-to-phase composite insulator, the first inclined portion and the second inclined portion are located on the same side of the axis of the phase-to-phase composite insulator.

[0010] Furthermore, a first chamfer is provided at the connection between the first inclined portion and the extension portion.

[0011] Furthermore, a second chamfer is provided at the connection between the second inclined portion and the extension portion, and at the connection between the second inclined portion and the second connecting portion.

[0012] Furthermore, when the first connecting portion connects to the clamp and the second connecting portion connects to the phase-to-phase composite insulator, the extension portion is parallel to the axis of the phase-to-phase composite insulator.

[0013] Furthermore, the bent portion is provided with opposing grooves.

[0014] Furthermore, the first connecting portion, the bent portion, and the second connecting portion are all plated with a zinc layer.

[0015] This invention provides a phase-to-phase spacer fitting for transmission lines, used to connect line clamps and phase-to-phase composite insulators. It includes a first connecting part, a bent part, and a second connecting part connected sequentially. The first connecting part is rotatably connected to the line clamp, and the second connecting part is connected to the phase-to-phase composite insulator. When the first connecting part connects to the line clamp and the second connecting part connects to the phase-to-phase composite insulator, both the first and second connecting parts are located on the axis of the phase-to-phase composite insulator. Specifically, when used on vertical double-split conductors, the phase-to-phase composite insulator is perpendicular to the line clamp; when used on horizontal double-split conductors, the phase-to-phase composite insulator and the line clamp are on the same axis. This invention allows the phase-to-phase spacer fitting to rotate around the first connecting part, making it adaptable to two different types of double-split conductors, thus solving the problem that existing phase-to-phase spacer fittings can only be used on vertical or horizontal double-split conductors. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the phase-to-phase spacer hardware for power transmission lines provided in an embodiment of this utility model; Figure 2 Cross-sectional view AA provided for embodiments of this utility model; Figure 3 A schematic diagram of the structure of the phase spacer provided in this embodiment of the present invention when used on a vertical double-split conductor; Figure 4 Partial Figure B provided for an embodiment of this utility model; Figure 5 A schematic diagram of the structure of the phase spacer rod hardware provided in this embodiment of the present invention when used on a horizontal double-split conductor; Figure 6 Partial Figure C is provided for an embodiment of this utility model.

[0018] Explanation of the markings in the image: 1. First connecting part; 11. First connecting hole; 2. Bending portion; 21. First inclined portion; 22. Extension portion; 23. Second inclined portion; 24. First chamfer; 25. Second chamfer; 26. Groove; 3. Second connecting part; 31. Second connecting hole; 10. Interval spacer rod fittings; 20. Wire clamp; 30. Phase-to-phase composite insulators. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] It is understandable that a vertical double-split traverse means that the two traverses are arranged vertically and parallel to each other, and the plane formed by the two traverses is perpendicular to the ground. A horizontal double-split traverse means that the two traverses are arranged horizontally and parallel to each other, and the plane formed by the two traverses is parallel to the ground or the angle between the two traverses is acute.

[0024] Combination Figure 1-6 As shown, this utility model provides a phase-to-phase spacer fitting 10 for transmission lines, used to connect a clamp 20 and a phase-to-phase composite insulator 30 of the transmission line. It includes: a first connecting part 1, a bending part 2, and a second connecting part 3 connected in sequence. The first connecting part 1 is used to rotatably connect the clamp 20 of the transmission line, and the second connecting part 3 is used to connect the phase-to-phase composite insulator 30. When the first connecting part 1 connects to the clamp 20 and the second connecting part 3 connects to the phase-to-phase composite insulator 30, both the first connecting part 1 and the second connecting part 3 are located on the axis of the phase-to-phase composite insulator 30. Specifically, when used on a vertical double-split conductor, the phase-to-phase composite insulator 30 is perpendicular to the clamp 20; when used on a horizontal double-split conductor, the phase-to-phase composite insulator 30 and the clamp 20 are located on the same axis.

[0025] In this embodiment of the invention, the first connecting part 1 is used to rotatably connect the clamp 20 of the transmission line, that is, the phase spacer 10 can be rotated with the first connecting part 1 as the pivot, so that the phase spacer 10 can be adapted to two different double-split conductors. When the first connecting part 1 connects the clamp 20 and the second connecting part 3 connects the phase composite insulator 30, the first connecting part 1 and the second connecting part 3 are both located on the axis of the phase composite insulator 30, that is, the straight line connected by the first connecting part 1 and the second connecting part 3 is always located on the axis of the phase composite insulator 30. When used on a vertical double-split conductor, the phase composite insulator 30 is perpendicular to the clamp 20, that is, the straight line connected by the first connecting part 1 and the second connecting part 3 is perpendicular to the clamp 20. When used on a horizontal double-split conductor, the phase composite insulator 30 and the clamp 20 are located on the same axis, that is, the straight line connected by the first connecting part 1 and the second connecting part 3 is on the same axis as the clamp 20. This solves the problem that the existing phase spacer 10 can only be used on vertical double-split conductors or only on horizontal double-split conductors.

[0026] In some embodiments, the first connecting part 1 is provided with a first connecting hole 11, and the first connecting hole 11 is connected to the wire clamp 20 by bolts.

[0027] In this embodiment, the connection between the first connecting hole 11 and the wire clamp 20 facilitates the rotation of the phase spacer hardware 10. Furthermore, the entire phase spacer hardware 10 is integrally formed, which is beneficial for industrial production. The size of the first connecting hole 11 can be adjusted according to the diameter of the wire. Specifically, the first connecting part 1 is a circular hole, which facilitates the rotation of the phase spacer hardware 10.

[0028] In some embodiments, the second connecting part 3 is provided with at least one second connecting hole 31, and the second connecting hole 31 is connected to the phase-to-phase composite insulator 30 by bolts.

[0029] In this embodiment, the phase-to-phase composite insulator 30 is bolted together through at least one second connecting hole 31, ensuring a stable connection between the second connecting hole 31 and the phase-to-phase composite insulator 30. Specifically, the second connecting part 3 is provided with two second connecting holes 31. When the first connecting part 1 connects to the clamp 20 and the second connecting part 3 connects to the phase-to-phase composite insulator 30, the two second connecting holes 31 are located on the axis of the phase-to-phase composite insulator 30, further improving the stability of the connection between the second connecting hole 31 and the phase-to-phase composite insulator 30.

[0030] In some embodiments, the bending portion 2 includes: a first inclined portion 21, an extension portion 22, and a second inclined portion 23. One end of the first inclined portion 21 is connected to the first connecting portion 1; one end of the extension portion 22 is connected to the other end of the first inclined portion 21; one end of the second inclined portion 23 is connected to the extension portion 22, and the other end is connected to the second connecting portion 3.

[0031] In this embodiment, the entire bending section 2 is divided into three parts: the first inclined section 21, the extension section 22, and the second inclined section 23. Only two bending is required during processing, which simplifies the process. The three-section connection helps that the first connecting section 1 and the second connecting section 3 are both located on the axis of the phase-to-phase composite insulator 30 when the first connecting section 1 connects to the clamp 20 and the second connecting section 3 connects to the phase-to-phase composite insulator 30.

[0032] In some embodiments, the first inclined portion 21 is inclined toward the direction of the second connecting portion 3, and the second inclined portion 23 is inclined toward the direction of the first connecting portion 1. When the first connecting portion 1 connects the clamp 20 and the second connecting portion 3 connects the phase-to-phase composite insulator 30, the first inclined portion 21 and the second inclined portion 23 are located on the same side of the axis of the phase-to-phase composite insulator 30.

[0033] In this embodiment, the first inclined portion 21 is inclined towards the direction closer to the second connecting portion 3, and the second inclined portion 23 is inclined towards the direction closer to the first connecting portion 1. That is, the angle between the first inclined portion 21, the second inclined portion 23 and the extension portion 22 is an obtuse angle, which helps to stabilize the connection of the entire interphase spacer rod fitting 10. Specifically, the first inclined portion 21 and the second inclined portion 23 are axially symmetrical about the central axis of the extension portion 22, which helps to process the interphase spacer rod fitting 10.

[0034] In some embodiments, a first chamfer 24 is provided at the connection between the first inclined portion 21 and the extension portion 22.

[0035] In this embodiment, the first chamfer 24 at the connection between the first inclined portion 21 and the extension portion 22 helps to make it easier to pick up and install the entire phase-to-phase spacer fitting 10, avoids injury, and can also prevent damage to the clamp 20 or the phase-to-phase composite insulator 30 during installation.

[0036] In some embodiments, a second chamfer 25 is provided at the connection between the second inclined portion 23 and the extension portion 22, and at the connection between the second inclined portion 23 and the second connecting portion 3.

[0037] In this embodiment, the second chamfer 25 at the connection between the second inclined portion 23 and the extension portion 22 and at the connection between the second inclined portion 23 and the second connecting portion 3 facilitates the handling and installation of the entire phase-to-phase spacer fitting 10, avoids injury, and prevents damage to the clamp 20 or the phase-to-phase composite insulator 30 during installation.

[0038] In some embodiments, when the first connecting portion 1 connects the clamp 20 and the second connecting portion 3 connects the phase-to-phase composite insulator 30, the extension portion 22 is parallel to the axis of the phase-to-phase composite insulator 30.

[0039] In this embodiment, the extension 22 being parallel to the axis of the phase-to-phase composite insulator 30 contributes to the stability of the connection between the entire phase-to-phase spacer 10 and the clamp 20 and the phase-to-phase composite insulator 30.

[0040] In some embodiments, the bent portion 2 is provided with opposing grooves 26.

[0041] In this embodiment, the bending part 2 is provided with opposite grooves 26, that is, the main body cross section of the interphase spacer 10 is I-shaped, so that the entire interphase spacer 10 is not easily deformed under high mechanical load. Moreover, the grooves 26 help to save materials, making the interphase spacer 10 lightweight and high-strength.

[0042] In some embodiments, the first connecting portion 1, the bent portion 2, and the second connecting portion 3 are all plated with a zinc layer.

[0043] In this embodiment, the zinc plating layer on the first connecting part 1, the bending part 2 and the second connecting part 3 helps to prevent rust and corrosion of the interphase spacer fitting 10, protects the interphase spacer fitting 10 and extends its service life.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A phase-to-phase spacer fitting for transmission lines, used to connect line clamps and phase-to-phase composite insulators in transmission lines, characterized in that, include: A first connecting part, a bent part, and a second connecting part are connected in sequence. The first connecting part is used to rotatably connect to the clamp of the transmission line, and the second connecting part is used to connect to the phase-to-phase composite insulator. When the first connecting part connects to the clamp and the second connecting part connects to the phase-to-phase composite insulator, both the first connecting part and the second connecting part are located on the axis of the phase-to-phase composite insulator. When used on a vertical double-split conductor, the phase-to-phase composite insulator is perpendicular to the clamp, and when used on a horizontal double-split conductor, the phase-to-phase composite insulator and the clamp are located on the same axis.

2. The phase-to-phase spacer fitting for transmission lines according to claim 1, characterized in that, The first connecting part is provided with a first connecting hole, and the first connecting hole is connected to the wire clamp by bolts.

3. The phase-to-phase spacer fitting for transmission lines according to claim 1, characterized in that, The second connecting part is provided with at least one second connecting hole, and the second connecting hole is connected to the phase-to-phase composite insulator by bolts.

4. The phase-to-phase spacer fitting for transmission lines according to claim 1, characterized in that, The bending portion includes: A first inclined portion, one end of which is connected to the first connecting portion; An extension portion, one end of which is connected to the other end of the first inclined portion; The second inclined portion has one end connected to the extension portion and the other end connected to the second connecting portion.

5. The phase-to-phase spacer fitting for transmission lines according to claim 4, characterized in that, The first inclined portion is inclined toward the direction of the second connecting portion, and the second inclined portion is inclined toward the direction of the first connecting portion. When the first connecting portion connects to the clamp and the second connecting portion connects to the phase-to-phase composite insulator, the first inclined portion and the second inclined portion are located on the same side of the axis of the phase-to-phase composite insulator.

6. The phase-to-phase spacer fitting for transmission lines according to claim 4, characterized in that, A first chamfer is provided at the connection between the first inclined portion and the extension portion.

7. The phase-to-phase spacer fitting for transmission lines according to claim 4, characterized in that, A second chamfer is provided at the connection between the second inclined portion and the extension portion, and at the connection between the second inclined portion and the second connecting portion.

8. The phase-to-phase spacer fitting for transmission lines according to claim 4, characterized in that, When the first connecting part connects to the clamp and the second connecting part connects to the phase-to-phase composite insulator, the extension is parallel to the axis of the phase-to-phase composite insulator.

9. The phase-to-phase spacer fitting for transmission lines according to claim 1, characterized in that, The bent portion has opposing grooves.

10. The phase-to-phase spacer fitting for transmission lines according to claim 1, characterized in that, The first connecting part, the bent part, and the second connecting part are all plated with a zinc layer.

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