Guyed tower

Abstract

Provided in the present application is a guyed tower, comprising: a first tower body and a second tower body which are spaced apart from each other in a first direction; a first guy wire assembly fixedly connected between the upper end of the first tower body and the ground and used for tensioning the first tower body; a second guy wire assembly fixedly connected between the upper end of the second tower body and the ground and used for tensioning the second tower body; a third guy wire assembly fixedly connected between the upper end of the first tower body and the upper end of the second tower body; and at least one cross arm assembly comprising a plurality of insulator assemblies which are successively connected, every two adjacent insulator assemblies being fixedly connected to each other by means of a first connecting assembly, the first connecting assemblies being used for hanging of wires, the wires extending in a second direction, the second direction being perpendicular to the first direction, and two ends of the cross arm assembly being respectively and fixedly connected to the first tower body and the second tower body by means of second connecting assemblies. Such design removes a traditional suspension insulator string, thus making the arrangement of power transmission lines more compact, and reducing the construction cost of guyed towers.

Description

Guyed Tower Technical Field

[0001] The present application relates to the field of power transmission technology, and in particular to a guyed tower. Background Art

[0002] Guy towers are structures used to support conductors and lightning conductors in overhead transmission lines. They ensure the conductors maintain distance limits from the ground and other features, and can withstand the loads of the conductors, lightning conductors, and their own loads, as well as external loads. Traditional guy towers are mostly suspension cable towers, requiring the use of suspension insulator strings to connect the conductors to meet different conductor arrangement requirements. These suspension insulator strings are often arranged in a V-shape, with the tops of two suspension insulators spaced apart and their suspension ends connected to form a conductor attachment point. This creates a wide corridor, increases the tower's footprint, and is prone to phase-to-phase flashover in wind deflection conditions.

[0003] Summary of the Invention

[0004] In view of this, the present application provides a guy tower, which uses composite insulators to form a structurally symmetrical cross-arm assembly for hanging conductors, eliminating the traditional suspension insulator string, making the layout of the transmission line more compact and reducing the construction cost of the guy tower.

[0005] In order to solve the above problems, the present application provides a guyed tower, comprising a first tower body and a second tower body spaced apart along a first direction; a first guyed wire assembly fixedly connected between the upper end of the first tower body and the ground, for tightening the first tower body; a second guyed wire assembly fixedly connected between the upper end of the second tower body and the ground, for tightening the second tower body; a third guyed wire assembly fixedly connected between the upper end of the first tower body and the upper end of the second tower body; at least one group of cross-arm assemblies, comprising a plurality of insulator assemblies connected in sequence, with two adjacent insulator assemblies fixedly connected via a first connecting assembly, the first connecting assembly being used to hang a conductor, the conductor extending along a second direction, and the second direction being perpendicular to the first direction; the two ends of the cross-arm assembly being fixedly connected to the first tower body and the second tower body respectively via the second connecting assembly.

[0006] According to some embodiments of the present application, the insulator assembly includes two insulators arranged at intervals, the insulator includes an insulator, an umbrella skirt wrapped around the outer periphery of the insulator, and two end fittings respectively sleeved on both ends of the insulator, and the end fittings are fixedly connected to the first connecting assembly or the second connecting assembly.

[0007] According to some embodiments of the present application, the axes of the two insulators are parallel to each other, and the plane formed by the axes of the two insulators is parallel to the second direction.

[0008] According to some embodiments of the present application, the first connecting assembly includes a first connecting fitting, the first connecting fitting includes a connecting plate and a hanging plate, the connecting plate includes two interconnected flat plates, and the hanging plate is fixedly connected to the board surfaces of the two flat plates at the same time.

[0009] According to some embodiments of the present application, the first connecting fittings are symmetrically arranged with respect to the connecting surfaces of the two flat plates.

[0010] According to some embodiments of the present application, the two flat plates are arranged at a certain angle so that the connecting plate is V-shaped as a whole, and the wire hanging plate is arranged on the V-shaped outer plate surface of the connecting plate.

[0011] According to some embodiments of the present application, first reinforcing plates are provided on both sides of the hanging plate, and the first reinforcing plates simultaneously connect the hanging plate and the flat plate.

[0012] According to some embodiments of the present application, a first mounting hole is provided on both plates, and the ends of two adjacent insulator assemblies close to each other are installed in the first mounting holes, so that the first connecting assembly connects the two adjacent insulator assemblies.

[0013] According to some embodiments of the present application, the first connecting assembly further includes an extension piece, one end of the extension piece is connected to the insulator assembly, and the other end of the extension piece is connected to the connecting plate.

[0014] According to some embodiments of the present application, the first connecting assembly includes a first connecting plate and two second connecting plates, the two second connecting plates are fixedly connected to both sides of the first connecting plate, and the end of the first connecting plate not connected to the second connecting plate is used to hang the wire.

[0015] According to some embodiments of the present application, a shielding ring is provided on the first connecting component, and the shielding ring includes an arc-shaped ring body, and the arc-shaped ring body is fixedly connected to the first connecting component via a connecting bracket.

[0016] According to some embodiments of the present application, the second connecting assembly includes a triangular connecting plate and a connecting hardware assembly that are connected to each other. Three second mounting holes are provided on the triangular connecting plate. Two end hardware at one end of the insulator assembly are respectively installed in two of the second mounting holes. One end of the connecting hardware assembly is installed in another second mounting hole, and the other end is fixedly connected to the first tower body or the second tower body.

[0017] According to some embodiments of the present application, the connecting hardware assembly is an adjustable hardware assembly, and the adjustable hardware assembly includes a first adjustment plate and a second adjustment plate connected in sequence, the first adjustment plate is formed by a plurality of strip plates connected to each other, the second adjustment plate is a fan-shaped plate, and the fan-shaped part of the second adjustment plate is provided with a plurality of third mounting holes arranged in an arc shape, and a U-shaped hardware is provided to be selectively installed in one of the third mounting holes, and is further fixedly connected to the first tower body or the second tower body.

[0018] According to some embodiments of the present application, the crossarm assembly includes four insulator assemblies connected in sequence, and two adjacent insulator assemblies are connected by a first connecting assembly, thereby forming three hanging points for hanging three-phase conductors.

[0019] According to some embodiments of the present application, the cross-arm assembly is arranged to extend gradually upward from the middle to both sides, and two adjacent insulator assemblies are arranged at a certain angle.

[0020] According to some embodiments of the present application, the four insulator assemblies are a second insulator assembly, a first insulator assembly, another first insulator assembly and another second insulator assembly connected in sequence, one end of the two first insulator assemblies are fixedly connected through the first connecting assembly to form a middle phase conductor hanging point, and the other ends of the two first insulator assemblies are respectively fixedly connected to one end of the two second insulator assemblies through the first connecting assembly to form two side phase conductor hanging points, thereby forming three hanging points.

[0021] According to some embodiments of the present application, the crossarm assembly includes three insulator assemblies, which are a second insulator assembly, a first insulator assembly and another second insulator assembly connected in sequence. The first insulator assembly includes three insulators connected to each other. The interconnections of the three insulators form three vertex ends of the first insulator assembly, and the three vertex ends form three hanging points. One end of the two second insulator assemblies is respectively fixedly connected to two of the vertex ends, and the other ends are respectively fixedly connected to the first tower body and the second tower body.

[0022] Beneficial Effects: This application utilizes a cross-arm assembly between the two tower bodies to suspend the conductors. This cross-arm assembly replaces the traditional cable structure, eliminating the need for traditional suspension insulator strings. This makes the layout of the transmission line more compact and reduces the construction costs of the tower. This tower type significantly reduces the width of the line corridor while resolving the problem of interphase wind deflection flashover. While maintaining the same tower height, it also improves the transmission efficiency of the line, improves the stress on the tower, and can accommodate different numbers of split conductors.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0025] FIG1 is a schematic structural diagram of an embodiment of a guyed tower of the present application;

[0026] FIG2 is a schematic structural diagram of an insulator assembly;

[0027] FIG3 is an enlarged schematic diagram of point A in FIG1 ;

[0028] FIG4 is a schematic structural diagram of a first connecting fitting;

[0029] FIG5 is a schematic diagram of a partial structure of a second insulator assembly;

[0030] FIG6 is a plan view of the first connecting fitting in FIG4 ;

[0031] FIG7 is a plan view of a first connecting fitting in another embodiment;

[0032] FIG8 is a schematic structural diagram of a hanging wire fitting string in one embodiment;

[0033] 9 is a schematic structural diagram of a hanging wire fitting string in another embodiment;

[0034] 10 is a structural diagram of a hanging wire fitting string in another embodiment;

[0035] FIG11 is a schematic structural diagram of another embodiment of the guyed tower of the present application;

[0036] FIG12 is an enlarged schematic diagram of point B in FIG11;

[0037] FIG13 is a schematic diagram of a partial structure of an insulator assembly in one embodiment;

[0038] FIG14 is a schematic diagram of a partial structure of a second insulator assembly in one embodiment;

[0039] FIG15 is a schematic structural diagram of another embodiment of the guyed tower of the present application. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] Referring to FIG1 , the present application provides a guyed tower 10, which includes a first tower body 11, a second tower body 12, a first guyed wire assembly 13, a second guyed wire assembly 14, and a third guyed wire assembly 15. The first tower body 11 and the second tower body 12 are spaced apart on the ground. The first guyed wire assembly 13 is fixedly connected between the upper end of the first tower body 11 and the ground, and the first guyed wire assembly 13 is located on a side of the first tower body 11 away from the second tower body 12, and is used to tighten the first tower body 11; the second guyed wire assembly 14 is fixedly connected between the upper end of the second tower body 12 and the ground. , and the second guy wire assembly 14 is located on the side of the second tower body 12 away from the first tower body 11, and is used to tighten the second tower body 12; the third guy wire assembly 15 is fixedly connected between the upper end of the first tower body 11 and the upper end of the second tower body 12, so that the structure of the first tower body 11 and the second tower body 12 is stable, preventing the first guy wire assembly 13 from over-tightening the first tower body 11 and causing the first tower body 11 to deviate to one side of the first guy wire assembly 13, and preventing the second guy wire assembly 14 from over-tightening the second tower body 12 and causing the second tower body 12 to deviate to one side of the second guy wire assembly 14.

[0042] The first tower body 11 and the second tower body 12 can be common transmission tower structures, such as lattice iron towers, pole towers, or composite towers. Depending on the elevation of the installation base, the bases of the first tower body 11 and the second tower body 12 can be located at the same vertical installation height or at different heights. Multiple guyed towers 10 can be spaced apart to accommodate conductors and form a transmission line. In one embodiment, the tops of the first tower body 11 and the second tower body 12 are located at the same height. The tops of the first tower body 11 and / or the second tower body 12 are used to attach ground wires to prevent lightning strikes on the towers or conductors, leading to unexpected power outages. In one embodiment, the first tower body 11 and the second tower body 12 are arranged in a V-shape, meaning that the distance between the first tower body 11 and the second tower body 12 gradually decreases from their tops to the ends fixed to the ground. Preferably, the angle formed between the first tower body 11 and the second tower body 12 is between 5° and 15°, resulting in a smaller footprint and higher structural stability for the guyed tower 10.

[0043] The first guy wire assembly 13 includes a cable and a connecting device, one end of the cable is fixedly connected to the upper end of the first tower body 11 through the connecting device, and the other end of the cable is fixedly connected to the ground through the connecting device, so that the cable is firmly arranged between the first tower body 11 and the ground. The number of cables can be set to one, two or more, according to the actual application scenario of the guy wire tower 10, and is not limited here. The structure of the second guy wire assembly 14 and the third guy wire assembly 15 is similar to that of the first guy wire assembly 13, and the details will not be repeated. By setting the first guy wire assembly 13, the second guy wire assembly 14 and the third guy wire assembly 15, the structures of the first tower body 11 and the second tower body 12 are stable and not prone to force deflection.

[0044] Furthermore, in one embodiment, the cables of the first guying assembly 13 and the first tower body 11, and the cables of the second guying assembly 14 and the second tower body 12 are arranged at an angle of 25°-40°, thereby ensuring that the guyed tower 10 has a smaller footprint while maintaining higher structural stability. Preferably, the cables of the first guying assembly 13 are fixedly connected to the top of the first tower body 11; the cables of the second guying assembly 14 are fixedly connected to the top of the second tower body 12; and the cables of the third guying assembly 15 are fixedly connected at both ends to the top of the first tower body 11 and the top of the second tower body 12, respectively. The fixed connection of the cables to the top of the tower body can increase the cable torque, making the tower body more stable under the same force conditions.

[0045] Referring to Figures 1-4 , the guyed tower 10 also includes a crossarm assembly 100, which is fixedly connected between the first tower body 11 and the second tower body 12 and extends gradually upward from the center to both sides. Specifically, one end of the crossarm assembly 100 is fixedly connected to the first tower body 11, and the other end is fixedly connected to the second tower body 12. The overall structure of the crossarm assembly 100 is V-shaped, and the crossarm assembly 100 is used to hang conductors 101. The horizontal direction from the first tower body 11 to the second tower body 12 is defined as a first direction F1, and the direction coplanar with and perpendicular to the first direction F1 is defined as a second direction F2. The first tower body 11 and the second tower body 12 are spaced apart along the first direction F1, and the conductors 101 extend along the second direction F2 and are hung from the crossarm assembly 100. The second direction F2 is perpendicular to the first direction F1. The crossarm assembly 100 includes several insulator assemblies 110 connected in sequence. Two adjacent insulator assemblies 110 are fixedly connected by a first connecting assembly 200. The first connecting assembly 200 is provided with a hanging wire hardware string 300 for hanging the conductor 101. The two ends of the crossarm assembly 100 are fixedly connected to the first tower body 11 and the second tower body 12 respectively through a second connecting assembly 400.

[0046] Referring to Figure 2 , insulator assembly 110 includes two spaced-apart, parallel insulators 111. Insulator 111 comprises an insulator, a sheath covering the outer periphery of the insulator, and two end fittings 1111, respectively, mounted on each end of the insulator. The insulator is a composite insulator made of glass fiber impregnated with epoxy resin, while the sheath can be made of materials such as high-temperature vulcanized silicone rubber, liquid silicone rubber, or room-temperature vulcanized silicone rubber, without limitation. End fittings 1111 are used to securely connect to first connecting assembly 200 or second connecting assembly 400. The composite material used in insulator assembly 110 offers a lightweight structure and ease of processing. This reduces steel usage compared to traditional iron towers, contributing to environmental protection and reducing transportation, assembly, and maintenance costs. Furthermore, its excellent external insulation properties eliminate safety hazards such as pollution flashover and rain flashover, addressing interphase windage flashover issues and ensuring safe operation.

[0047] The axes of the two insulators 111 are parallel to each other, and the plane formed by the axes of the two insulators 111 is parallel to the second direction F2. The insulator assembly 110, consisting of two insulators 111, can withstand higher mechanical strength, preventing failure of the entire cross-arm assembly 100 due to a breakage of one insulator 111. In other embodiments, the insulator assembly can include a single insulator, or three or more insulators spaced apart and arranged in parallel, as long as the cross-arm assembly meets the load-bearing requirements for suspending conductors.

[0048] 1 , an insulator assembly 110 connected at both ends to other insulator assemblies 110 is defined as a first insulator assembly 1110 , and an insulator assembly 110 connected at one end to other insulator assemblies 110 and at the other end to the first tower body 11 or the second tower body 12 is defined as a second insulator assembly 1120 .

[0049] In one embodiment, the crossarm assembly 100 includes four insulator assemblies 110. Specifically, in a first direction F1, the crossarm assembly 100 includes a second insulator assembly 1120, a first insulator assembly 1110, another first insulator assembly 1110, and another second insulator assembly 1120, which are sequentially connected, with adjacent insulator assemblies 110 arranged at a certain angle. One end of each of the two first insulator assemblies 1110 is fixedly connected via a first connecting assembly 200 to form a center-phase conductor attachment point. The other ends of each of the two first insulator assemblies 1110 are fixedly connected to one end of each of the two second insulator assemblies 1120 via the first connecting assembly 200 to form two side-phase conductor attachment points, thereby forming three conductor attachment points. Each of the three first connecting assemblies 200 is provided with a wire hanging hardware string 300 for hanging the three-phase conductor 101. The other ends of each of the two second insulator assemblies 1120 are fixedly connected to the first tower body 11 and the second tower body 12, respectively, via a second connecting assembly 400.

[0050] 4 , the first connection assembly 200 includes a first connection fitting 20, which includes a connection plate 210 and a wire hanging plate 220. The connection plate 210 includes two interconnected flat plates 211. The flat plates 211 are rectangular plates having a first plate surface and a second plate surface disposed opposite each other, two first side surfaces connected to the first plate surface and the second plate surface along the length of the flat plates 211, and two second side surfaces connected to the first plate surface and the second plate surface along the width of the flat plates 211. The two flat plates 211 are connected to each other via one of the first side surfaces to form the connection plate 210. The plane on which the connection surface lies is denoted as plane P1. The connection plate 210 is symmetrical about plane P1, i.e., the two flat plates 211 are symmetrical about plane P1. The first plate surfaces of the two flat plates 211 are close to each other, so that the two flat plates 211 are arranged at a certain angle, making the connection plate 210 as a whole V-shaped, and thus causing the two insulator assemblies 110 connected to the two ends of the first connection assembly 200 to be arranged at a certain angle. The first surfaces of the two flat plates 211 constitute the V-shaped inner surface of the connecting plate 210 , and the second surfaces of the two flat plates 211 constitute the V-shaped outer surface of the connecting plate 210 .

[0051] Each flat plate 211 is provided with two first mounting holes 212, and the two first mounting holes 212 are respectively arranged at both ends of the flat plate 211 along the length direction of the flat plate 211. The ends of two adjacent insulator assemblies 110 that are close to each other are installed in the first mounting holes 212, specifically, the end fittings 1111 at one end of the two insulators 111 of each insulator assembly 110 are respectively connected to the two first mounting holes 212 at both ends of the same flat plate 211, and then the two adjacent insulator assemblies 110 are connected through the first connecting assembly 200. At the same time, each flat plate 211 is also provided with a first through hole 213 and a second through hole 214. In conjunction with Figure 3, the first through hole 213 is used to connect the shielding ring 500. The first through hole 213 can be set to one or more, which is not limited here. The second through hole 214 is used as a reserved construction hole for construction or maintenance. The second through hole 214 can also be set to one or more, which is not limited here.

[0052] The connecting plate 210 is integrally formed through a stamping process, which ensures the overall structural strength of the first connecting fitting 20. When the first connecting assembly 200 connects two adjacent insulator assemblies 110, the V-shaped inner plate surface of the connecting plate 210 is located at the top, and the V-shaped outer plate surface of the connecting plate 210 is located at the bottom. The wire hanging plate 220 is arranged on the V-shaped outer plate surface of the connecting plate 210, and one end of the wire hanging plate 220 is fixedly connected to the second plate surfaces of the two flat plates 211 at the same time, and the plate surface of the wire hanging plate 220 is perpendicular to the second plate surfaces of the flat plates 211. The wire hanging plate 220 is provided with a wire hanging hole 221, and a wire hanging fitting string 300 is provided in the wire hanging hole 221 for hanging the conductor 101. The overall structure and connection method of the connecting plate 210 are simple and easy to construct.

[0053] Two first reinforcing plates 231 are provided on one side of the hanging plate 220. The first reinforcing plates 231 simultaneously connect the hanging plate 220 and the connecting plate 210. The two first reinforcing plates 231 are respectively arranged on the second surfaces of the two flat plates 211 and extend along the length direction of the flat plates 211. The first reinforcing plates 231 are also perpendicular to one side of the hanging plate 220 and the second surface of the flat plates 211. A second reinforcing plate 232 is also connected between the two first reinforcing plates 231 to make the connection between the hanging plate 220 and the connecting plate 210 more stable and ensure the overall mechanical strength of the first connecting hardware 20. A construction plate 233 is connected to the surface of the second reinforcing plate 232 away from the hanging plate 220. The construction plate 233 simultaneously connects the second reinforcing plate 232 and the connecting plate 210. The construction plate 233 is provided with construction holes for construction or maintenance. The second reinforcing plate 232 is arranged parallel to the wire hanging plate 220, and the construction plate 233 is perpendicular to the second reinforcing plate 232, that is, the construction plate 233 is parallel to the first reinforcing plate 231. Simultaneously, the first reinforcing plate 231, the second reinforcing plate 232, and the construction plate 233, each having the same structure, are symmetrically arranged on the other side of the wire hanging plate 220. By providing reinforcing plates on both sides of the wire hanging plate 220 and connecting the wire hanging plate 220 and the flat plate 211, the first connecting hardware 20 is symmetrically structured, ensuring the overall structural stability of the first connecting hardware 20 and more reasonable overall force distribution.

[0054] When the first connecting assembly 200 is used to form the hanging point of the middle phase conductor, referring to Figure 6, the first connecting fitting 20 is symmetrically arranged about the plane P1, that is, the connecting plate 210, the hanging plate 220, the first reinforcing plate 231, the second reinforcing plate 232, and the construction plate 233 are all symmetrically arranged about the plane P1, so that the cross-arm assembly 100 is symmetrical about the plane P1, so that the cross-arm assembly 100 is balanced in force after hanging the conductor 101, and the structure is stable. At this time, the plane P1 is a vertical plane, and the construction plate 233 is arranged in the vertical direction to facilitate hoisting construction.

[0055] When the first connecting assembly 200 is used to form a side-phase conductor attachment point, referring to FIG7 , the connecting plates 210 of the first connecting fitting 20 are symmetrically arranged about plane P1. Since the crossarm assembly 100 extends gradually upward from the center to both sides, plane P1 must be arranged at a certain angle to the vertical plane so that one flat plate 211 of the connecting plate 210 is higher than the other flat plate 211, thereby causing the second insulator assembly 1120 to be higher than the first insulator assembly 1110. The first and second reinforcing plates 231, 232 are still symmetrically arranged about plane P1. The size of the wire hanging plate 220 near the second insulator assembly 1120 is larger than that near the first insulator assembly 1110, thereby enhancing mechanical strength. The construction plate 233 is still arranged in the vertical direction to facilitate hoisting construction.

[0056] Among them, the angle between two adjacent insulator assemblies 110 is designed according to the electrical clearance requirements in actual engineering applications, and the angles of the V-shaped inner plate surfaces of the connecting plates 210 of each first connecting assembly 200 in the cross-arm assembly 100 can be the same or different to adapt to the different arrangements between the insulator assemblies 110.

[0057] Referring to FIG3 , the wire hanging string 300 in this embodiment is a six-split wire hanging string 300, which is hung below the first connecting assembly 200 via a connecting rod. Six wire clamps (not shown) are provided on the wire hanging string 300 to hang the six-split conductor 101. The six-split wire hanging string 300 can be a hollow plate in the shape of a quadrilateral, with a T-shaped plate connected to one side of the hollow plate, with wire clamp hanging points provided at the four corners of the hollow plate, and wire clamp hanging points provided at the lateral ends of the T-shaped plate for hanging the six-split conductor 101; or it can be a hollow plate in the shape of a hexagon, with wire clamp hanging points provided at the six corners of the hexagon.

[0058] In other embodiments, the hanging fitting string can also be of other structures, and other numbers of wire clamps can be provided on the hanging fitting string to hang wires with different numbers of splits, which is not limited here, and can make the use range of the cable tower wider. Referring to Figure 8, in one application scenario, the hanging fitting string 300 is a four-split hanging fitting string 300, specifically a plate with four wire clamp hanging points, which can be connected to four wire clamps to hang four-split wires. The hanging fitting string 300 is connected to the hanging plate of the first connecting component 200 through several adjustment plates. Referring to Figure 9, in another application scenario, the hanging fitting string 300 is a three-split hanging fitting string 300, specifically a T-shaped plate, and the three ends of the T-shaped plate are respectively provided with wire clamp hanging points, which can be connected to three wire clamps to hang three-split wires. The hanging fitting string 300 is connected to the hanging plate of the first connecting component 200 through a U-shaped fitting. Referring to Figure 10 , in another application scenario, the wire hanging hardware string 300 is a two-split wire hanging hardware string 300 , specifically a triangular connecting plate. One corner of the triangular connecting plate is used to connect to the first connecting assembly 200 , and the other two corners are provided with wire clip hanging points, which can be connected to two wire clips to hang the two-split wires. The wire hanging hardware string 300 is connected to the wire hanging plate of the first connecting assembly 200 via U-shaped hardware.

[0059] Referring to FIG3 , the first connecting assembly 200 further includes an extension piece 240 , which securely connects the end fitting 1111 of the insulator 111 to the connecting plate 210. The end fitting 1111 is a ring-shaped fitting, and both ends of the extension piece 240 are also ring-shaped fittings. One end of the extension piece 240 is connected to the insulator assembly 110, specifically via a U-shaped fitting. The other end of the extension piece 240 is also secured to the connecting plate 210 via a U-shaped fitting. Other connections are also possible, and are not limited here. The extension piece 240 can extend the overall length of the first connecting assembly 200. While ensuring that the electrical clearance between each phase conductor meets the operating requirements of the guy tower 10, it can also reduce the overall length of the insulator assembly 110, thereby saving the cost of the crossarm assembly 100.

[0060] The first connecting assembly 200 is also provided with a shielding ring 500. This shielding ring 500 comprises an arcuate ring body, which is fixedly connected to the first connecting assembly 200 via a connecting bracket (not shown). The arcuate ring body can be fixedly connected to the connecting plate 210 or the extension member 240, without limitation. The shielding ring 500 provides voltage balancing, protecting the first connecting assembly 200 and thereby ensuring its service life.

[0061] In one embodiment, the arcuate ring body of the shielding ring 500 is a semicircular ring. Compared to the curved metal surfaces of the various components of the first connecting assembly 200, the semicircular ring body has a much larger radius of curvature and a smooth metal surface, thus preventing extreme electric field distortion. Positioning the semicircular ring body on the first connecting assembly 200 effectively covers the protruding metal surfaces of the first connecting assembly 200, ensuring a uniform electric field around the ring body and preventing corona discharge. Furthermore, compared to arcuate ring bodies with a central angle greater than 180°, the semicircular ring body can reduce the cost of the shielding ring 500.

[0062] The structure of the first connecting assembly 200 of the present application meets the connection requirements of the insulator assemblies 110 on both sides and the hanging requirements of the hanging wire hardware string 300, while taking into account the convenience of hanging wire construction and installation. Compared with the traditional cross-arm node hardware installed on the self-supporting iron tower, the structure is simpler and the weight is smaller.

[0063] 1 and 5 , a second connecting assembly 400 is used to securely connect one second insulator assembly 1120 to the first tower body 11, and another second insulator assembly 1120 to the second tower body 12, thereby stably securing the crossarm assembly 100 between the first tower body 11 and the second tower body 12. The second connecting assembly 400 includes a triangular connecting plate 410 and a connecting fitting assembly 420, which are interconnected. In this embodiment, the connecting fitting assembly 420 is an adjustable fitting assembly 420. The triangular connecting plate 410 is a triangular plate. Each of the three corners of the triangular connecting plate 410 has a second mounting hole. The second mounting holes at two corners are used to securely connect with two end fittings 1111 at one end of the second insulator assembly 1120. Specifically, the end fittings 1111 at one end of the two insulators 111 are respectively mounted in the two second mounting holes. One end of the adjustable fitting assembly 420 is mounted in the second mounting hole at the other corner, and the other end is securely connected to the first tower body 11 or the second tower body 12.

[0064] The adjustable hardware assembly 420 includes a first adjustment plate 421 and a second adjustment plate 422 connected in sequence, which are used to adjust the length of the second connecting assembly 400. The first adjustment plate 421 is formed by interconnecting a plurality of strip plates, each of which is provided with a plurality of connection holes. By docking the plurality of strip plates with different connection holes, first adjustment plates 421 of different lengths can be formed. One end of the first adjustment plate 421 is fixedly connected to the second mounting hole of the triangular connecting plate 410, and the other end is fixedly connected to one side of the second adjustment plate 422. The second adjustment plate 422 is a fan-shaped plate, and the fan-shaped portion of the second adjustment plate 422 is provided with a plurality of third mounting holes arranged in an arc shape. Based on the design requirements of the connection length of the crossarm assembly 100, a U-shaped hardware is selectively installed in one of the third mounting holes and further fixedly connected to the first tower body 11 or the second tower body 12.

[0065] In this embodiment, the crossarm assembly 100 is arranged as a group, and the crossarm assembly 100 includes four insulator assemblies 110 connected in sequence. Two adjacent insulator assemblies 110 are connected by a first connecting assembly 200, thereby forming three wire hanging points for hanging three-phase conductors 101. In other embodiments, the crossarm assembly may also include other numbers of insulator assemblies, or multiple groups of crossarm assemblies may be arranged vertically between the first tower body and the second tower body. The design is based on the requirements of the transmission line and is not limited here. For example, the crossarm assemblies may be arranged in two groups vertically, with each group of crossarm assemblies forming three wire hanging points, thereby being used to hang dual-circuit three-phase conductors.

[0066] Referring to Figures 11 to 14, in another embodiment, the guying tower 10 is similar to the aforementioned structure, except for the structure of the first connecting assembly 600 and the second connecting assembly 700. Specifically, the first connecting assembly 600 includes a first connecting plate 610 and two second connecting plates 620, the two second connecting plates 620 being fixedly connected to both sides of the first connecting plate 610, and a wire hanging hole 611 is provided at the end of the first connecting plate 610 that is not connected to the second connecting plate 620 for hanging the wire. Among them, the first connecting plate 610 is a triangular connecting plate, and the three top corners of the first connecting plate 610 are each provided with a fourth mounting hole, wherein the two fourth mounting holes are respectively used to connect to the two second connecting plates 620, and the first connecting plate 610 and the second connecting plate 620 are fixedly connected by a U-shaped hardware, and the other fourth mounting hole serves as a wire hanging hole 611 for connecting to the wire hanging hardware string 300 to hang the wire.

[0067] The second connecting plate 620 is also a triangular connecting plate. Fifth mounting holes are provided at each of the three corners of the second connecting plate 620. One of the fifth mounting holes is used to connect to the fourth mounting hole on the first connecting plate 610 via a U-shaped fitting. The other two fifth mounting holes are used to securely connect to the two insulators 111 in the insulator assembly 110. Furthermore, the two first connecting plates 610 are positioned perpendicular to the surfaces of the second connecting plate 620, ensuring that the first insulator assemblies 1110 and the second insulator assemblies 1120 on either side of the first connecting assembly 600 are parallel to the second direction F2, thereby ensuring the structural stability of the entire crossarm assembly 100.

[0068] The second connection assembly 700 includes a triangular connecting plate 710 and a connecting fitting assembly 720 that are interconnected. The triangular connecting plate 710 is a triangular plate with second mounting holes at each of its three corners. The second mounting holes at two corners are used to connect to the end fittings 1111 at one end of the two insulators 111 of the second insulator assembly 1120 via U-shaped fittings. One end of the connecting fitting assembly 720 is mounted in the second mounting hole at the other corner via the U-shaped fitting, and the other end is fixedly connected to the first tower body 11 or the second tower body 12 via the U-shaped fitting. The connecting fitting assembly 720 is a long strip of plate with connection holes for connecting to the U-shaped fittings. In actual application, the length of the long strip of plate can be selected according to the length design requirements of the crossarm assembly 100.

[0069] The first connecting assembly 600 and the second connecting assembly 700 in this embodiment are simple in structure, convenient in installation and easy in construction. In other embodiments, the first connecting assembly and the second connecting assembly may also be connecting plate structures of other shapes, which will not be described in detail.

[0070] Referring to Figure 15 , in another embodiment, a guy tower 10 is similar to the aforementioned structure, differing in the specific structure of the crossarm assembly 100. The crossarm assembly 100 is fixedly connected between the first tower body 11 and the second tower body 12 and extends gradually upward from the center to both sides. The crossarm assembly 100 includes three insulator assemblies 110. In a first direction F1, the crossarm assembly 100 includes a second insulator assembly 1120, a first insulator assembly 1110, and another second insulator assembly 1120, which are sequentially connected. Adjacent insulator assemblies 110 are arranged at a certain angle. The specific angle is designed based on actual application and is not further described.

[0071] The first insulator assembly 1110 includes three interconnected insulators, forming a triangular structure. The interconnected locations of the three insulators form the three vertices of the first insulator assembly 1110. One end of each of the two second insulator assemblies 1120 is fixedly connected to two of the vertices of the first insulator assembly 1110 via a first connecting assembly 200. The other ends of the two second insulator assemblies 1120 are fixedly connected to the first tower body 11 and the second tower body 12 via a second connecting assembly 400. The structure of the insulators is consistent with that described above and will not be further described.

[0072] The two vertex ends of first insulator assembly 1110 fixedly connected to second insulator assembly 1120 are defined as the first vertex end and the second vertex end, respectively. The other vertex end is defined as the third vertex end, which is located below the first and second vertex ends. In one embodiment, the straight line formed by the first and second vertex ends is parallel to the horizontal plane. In other embodiments, the straight line formed by the first and second vertex ends may also form a certain angle with the horizontal plane, which is not limited here.

[0073] One end of the two second insulator assemblies 1120 is fixedly connected to the first insulator assembly 1110 through the first connecting assembly 200. The first connecting assembly 200 is provided with a hanging hardware string for hanging the conductor, that is, the first vertex end and the second vertex end of the first insulator assembly 1110 form two hanging points. At the same time, the third vertex end of the first insulator assembly 1110 is also provided with a hanging hardware string for forming a hanging point. Then the three vertex ends of the first insulator assembly 1110 form three hanging points for hanging three-phase conductors.

[0074] Among them, the insulator assembly 110 can include one insulator, or it can include several insulators spaced apart and arranged in parallel with each other, as long as the cross-arm assembly 100 meets the force requirements for hanging conductors. The cross-arm assembly 100 can include two straight-shaped second insulator assemblies 1120 and a triangular first insulator assembly 1110, or it can include other numbers of straight-shaped insulator assemblies and triangular insulator assemblies. In addition, the cross-arm assembly 100 can be set as one group, or it can be set as multiple groups spaced apart in the vertical direction. The design is based on the requirements of the transmission line and is not limited here. For example, the cross-arm assemblies are spaced apart in two groups in the vertical direction, and three hanging points are formed on each group of cross-arm assemblies, so that they can be used to hang double-circuit three-phase conductors.

[0075] The cross-arm assembly 100 on the guyed tower 10 of the present application adopts a plurality of insulator assemblies 110 connected in sequence, and only a string of hanging wire fittings is required to suspend the conductor. Compared with traditional free-standing iron towers and guyed towers, the height is reduced, the problem of wind deflection flashover between phases is solved, and the phase distance is compressed. While maintaining the same tower height, the transmission efficiency of the line is improved and the stress is improved; at the same time, the distance between the side phase conductor and the tower body is reduced, so that the tower material, foundation and construction costs are reduced, and the line spacing between the side phase conductor and the middle phase conductor is increased, thereby reducing the influence of factors such as radio interference and compressing the width of the transmission line corridor.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A guyed tower, characterized in that, The guyed tower includes: A first tower body and a second tower body arranged at intervals along a first direction; A first guy wire assembly fixedly connected between the upper end of the first tower body and the ground for tensioning the first tower body; A second guy wire assembly fixedly connected between the upper end of the second tower body and the ground for tensioning the second tower body; A third guy wire assembly fixedly connected between the upper end of the first tower body and the upper end of the second tower body; At least one set of cross-arm assemblies, including a plurality of insulator assemblies connected in sequence. Adjacent two of the insulator assemblies are fixedly connected by a first connection assembly for hanging a conductor. The conductor extends along a second direction perpendicular to the first direction; Both ends of the cross-arm assembly are fixedly connected to the first tower body and the second tower body respectively through a second connection assembly.

2. The guyed tower according to claim 1, characterized in that, The insulator assembly includes two insulators arranged at intervals. Each insulator includes an insulator body, an umbrella skirt covering the outer periphery of the insulator body, and two end fittings sleeved on both ends of the insulator body respectively. The end fittings are fixedly connected to the first connection assembly or the second connection assembly.

3. The guyed tower according to claim 2, wherein, The axes of the two insulators are parallel to each other, and the plane formed by the axes of the two insulators is parallel to the second direction.

4. The guyed tower according to claim 1, characterized in that, The first connection assembly includes a first connection fitting, which includes a connecting plate and a wire-hanging plate. The connecting plate includes two interconnected flat plates, and the wire-hanging plate is fixedly connected to the plate surfaces of both flat plates at the same time.

5. The guyed tower according to claim 4, wherein, The first connection fitting is symmetrically arranged with respect to the connection surface of the two flat plates.

6. The guyed tower according to claim 4, characterized in that, The two flat plates are arranged at a certain angle so that the whole connecting plate is in a V shape, and the wire-hanging plate is arranged on the outer plate surface of the V shape of the connecting plate.

7. The guyed tower according to claim 4, wherein, First reinforcing plates are provided on both sides of the wire-hanging plate, and the first reinforcing plates are connected to the wire-hanging plate and the flat plate at the same time.

8. The guyed tower according to claim 4, wherein, First mounting holes are provided on both of the two flat plates. The mutually adjacent ends of two adjacent insulator assemblies are mounted in the first mounting holes so that the first connection assembly connects two adjacent insulator assemblies.

9. The guyed tower according to claim 4, characterized in that, The first connection assembly further includes an extension piece. One end of the extension piece is connected to the insulator assembly, and the other end is connected to the connecting plate.

10. The guyed tower according to claim 1, characterized in that, The first connection assembly includes a first link plate and two second link plates. The two second link plates are fixedly connected to both sides of the first link plate. The end of the first link plate that is not connected to the second link plate is used for hanging the conductor.

11. The guyed tower according to claim 1, characterized in that, A shielding ring is provided on the first connection assembly. The shielding ring includes an arc-shaped ring body, and the arc-shaped ring body is fixedly connected to the first connection assembly through a connection bracket.

12. The guyed tower according to claim 2, wherein The second connection assembly includes a triangular link plate and a connection fitting assembly connected to each other. Three second mounting holes are provided on the triangular link plate. Two of the end fittings at one end of the insulator assembly are respectively mounted in two of the second mounting holes, and one end of the connection fitting assembly is mounted in the other second mounting hole, and the other end is fixedly connected to the first tower body or the second tower body.

13. The guyed tower according to claim 12, wherein The connecting fitting assembly is an adjustable fitting assembly. The adjustable fitting assembly includes a first adjusting plate and a second adjusting plate connected in sequence. The first adjusting plate is formed by connecting a plurality of strip plates to each other. The second adjusting plate is a sector plate. A plurality of third mounting holes arranged in an arc are provided in the sector part of the second adjusting plate. A U-shaped fitting is alternatively installed in one of the third mounting holes and further fixedly connected to the first tower body or the second tower body.

14. The guyed tower according to claim 1, characterized in that, The cross arm assembly includes four of the insulator assemblies connected in sequence. Adjacent two of the insulator assemblies are connected by the first connecting assembly, thereby forming three wire hanging points for hanging three-phase conductors.

15. The guyed tower according to claim 1, characterized in that, The cross arm assembly extends gradually upward from the middle to both sides, and adjacent two of the insulator assemblies are arranged at a certain angle.

16. The guyed tower according to claim 14, characterized in that, The four insulator assemblies are a second insulator assembly, a first insulator assembly, another first insulator assembly, and another second insulator assembly connected in sequence. One ends of the two first insulator assemblies are fixedly connected through the first connecting assembly to form a middle-phase conductor hanging point. The other ends of the two first insulator assemblies and one ends of the two second insulator assemblies are respectively fixedly connected through the first connecting assembly to form two side-phase conductor hanging points, and then three of the wire hanging points are formed.

17. The guyed tower according to claim 1, characterized in that, The cross arm assembly includes three of the insulator assemblies connected in sequence. The three insulator assemblies are a second insulator assembly, a first insulator assembly, and another second insulator assembly connected in sequence. The first insulator assembly includes three insulators connected to each other. The connection points of the three insulators form three vertex ends of the first insulator assembly. The three vertex ends form three wire hanging points. One ends of the two second insulator assemblies are respectively fixedly connected to two of the vertex ends, and the other ends are respectively fixedly connected to the first tower body and the second tower body.

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