WO2025066544A1 - 输电塔 - Google Patents

输电塔 Download PDF

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Publication number
WO2025066544A1
WO2025066544A1 PCT/CN2024/109421 CN2024109421W WO2025066544A1 WO 2025066544 A1 WO2025066544 A1 WO 2025066544A1 CN 2024109421 W CN2024109421 W CN 2024109421W WO 2025066544 A1 WO2025066544 A1 WO 2025066544A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting plate
insulator
transmission tower
arcing
tower body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/109421
Other languages
English (en)
French (fr)
Inventor
王鑫龙
李焱琳
王晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Shemar Power Engineering Co Ltd
Original Assignee
Shanghai Shemar Power Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202311244044.4A external-priority patent/CN117248777A/zh
Priority claimed from CN202411010905.7A external-priority patent/CN118970717A/zh
Application filed by Shanghai Shemar Power Engineering Co Ltd filed Critical Shanghai Shemar Power Engineering Co Ltd
Priority to AU2024348554A priority Critical patent/AU2024348554A1/en
Priority to EP24799108.6A priority patent/EP4553255A4/en
Publication of WO2025066544A1 publication Critical patent/WO2025066544A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/08—Structures made of specified materials of metal
    • E04H12/10—Truss-like structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/24—Cross arms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines

Definitions

  • the present application relates to the field of power transmission technology, and in particular to a power transmission tower.
  • node fittings In transmission towers, node fittings usually connect insulators and hanging wires. However, current node fittings have complex structures, occupy large spaces, and are not conducive to construction and maintenance. On the other hand, node fittings are easily damaged in lightning weather and have low safety performance.
  • the present application provides a transmission tower that can reduce the space occupied by node hardware, ensure the compact structure of the node hardware, and also improve the safety performance of the node hardware to protect the node hardware.
  • the present application provides a transmission tower, including a tower body and a composite crossarm arranged on the tower body, the composite crossarm including at least one post insulator, at least one diagonal insulator and a node hardware, the first ends of the post insulator and the diagonal insulator are connected to the tower body, and the second ends are connected together through the node hardware
  • the node hardware includes: a first connecting plate, used to connect the second end of the post insulator, including a first surface and a second surface arranged opposite to each other; at least one second connecting plate, installed on the first surface and connected to the first surface on the side, used to connect the second end of the diagonal insulator; a shielding ring, installed on the first surface.
  • the present application installs the shielding ring on the first surface of the first connecting plate, which can ensure the compact structure of the node hardware on the one hand, and on the other hand, the shielding ring has the function of balancing the voltage, which can protect the node hardware and thus ensure the life of the node hardware.
  • the shielding ring is in a semi-enclosed structure and is arranged on the periphery of the first connecting plate.
  • At least one connecting bracket is protrudingly provided on the shielding ring, and the connecting bracket is connected to the first surface.
  • the node fitting further comprises: a third connecting plate, which is mounted on the first surface and connected to the second connecting plate at the side, and the third connecting plate is located inside the shielding ring.
  • any two of the first connecting plate, the second connecting plate and the third connecting plate are vertically arranged.
  • the shielding ring is a plane-symmetrical structure, and the symmetry plane of the shielding ring is parallel to the first connecting plate.
  • the node hardware further includes: a hanging plate, which is installed on the second surface and connected to the second surface on the side, and the hanging plate is provided with two first hanging holes arranged at intervals and a first construction hole located between the two first hanging holes, wherein the two first hanging holes and the first construction hole are arranged at intervals along a direction parallel to the first connecting plate.
  • the first connecting plate is perpendicular to the symmetry plane of the board surface
  • the second connecting plate is parallel to the symmetry plane of the board surface
  • the hanging plate is parallel to the symmetry plane of the board surface and overlaps.
  • the first connecting plate is provided with a first mounting hole for installing the post insulator;
  • the second connecting plate is provided with a second mounting hole and a second construction hole, and the second mounting hole is used to install the inclined insulator.
  • the transmission tower further comprises: a first hinge, connecting the first end of the support insulator and the tower body, so that the support insulator can rotate relative to the tower body; a second hinge, connecting the first end of the inclined insulator and the tower body, so that the inclined insulator can rotate relative to the tower body.
  • the tower body includes: a tower body; a first support frame and a second support frame, which are protruded on the same side wall of the tower body, the first support frame is connected to the first end of the post insulator, and the second support frame is connected to the first end of the inclined insulator.
  • the transmission tower includes at least one arcing device, each arcing device includes an arcing ring and an arcing end, the arcing ring is provided with a notch, the notch forms two ends of the arcing ring, the arcing end is located at one end of the arcing ring, and the arcing end is bent in a direction away from the arcing ring.
  • a fixing plate is also provided between the two second connecting plates.
  • the fixing plate is arranged on the first surface and the side surface is connected to the first surface.
  • a third construction hole is provided on the fixing plate for the construction and maintenance of the composite cross arm.
  • the present application makes the spatial design of the entire node hardware more compact by setting the shielding ring on the first surface of the first connecting plate. At the same time, the shielding ring can balance the voltage and protect the entire node hardware, thereby increasing the service life of the node hardware.
  • the present application also stacks multiple shielding rings to enhance the protection effect on node hardware.
  • first hinge and the second hinge allows the composite cross arm to rotate relative to the tower body after the support insulator breaks, thereby releasing excessive unbalanced tension through rotation, protecting the tower body and preventing the tower body from being damaged.
  • FIG1 is a schematic structural diagram of an embodiment of a transmission tower of the present application.
  • FIG2 is a schematic diagram of the structure of the node hardware in FIG1 ;
  • FIG3 is a schematic diagram of the structure of the composite cross arm in FIG1 ;
  • FIG4 is a schematic diagram of the structure of the arcing device in FIG1 ;
  • FIG5 is a schematic structural diagram of another embodiment of a transmission tower of the present application.
  • FIG. 6 is an enlarged schematic diagram of the node fitting in FIG. 5 in the composite crossarm.
  • the present application provides a transmission tower 10, which includes a tower body 100 and a composite crossarm 200 arranged on the tower body 100.
  • the composite crossarm 200 includes a post insulator 210, a diagonal insulator 220 and a node hardware 230.
  • the first end of the post insulator 210 and the first end of the diagonal insulator 220 are both connected to the tower body 100, and the second end is connected to the node hardware 230.
  • the node hardware 230 connects the post insulator 210 and the diagonal insulator 220 together to form the end of the composite crossarm 200 for hanging the conductor 320.
  • the tower body 100 may be a transmission tower structure of a common structure such as a lattice iron tower, a pole body or a composite pole tower.
  • a composite cross arm 200 may be provided on one side of the tower body 100, or on multiple sides of the tower body 100.
  • One composite cross arm 200 may be provided on one side of the tower body 100, or multiple composite cross arms 200 may be provided at intervals along the vertical direction.
  • the number of post insulators 210 is two, and the number of diagonal insulators 220 is one (as shown in FIG1 ).
  • the first ends of the two post insulators 210 and one diagonal insulator 220 are connected to the tower body 100, and the second ends are connected together through the node fittings 230.
  • the two post insulators 210 are located on the same side of the tower body 100, and the diagonal insulator 220 is located above the two post insulators 210.
  • the number of post insulators is two, and the number of diagonal insulators is also two.
  • the number of post insulators is one, and the number of diagonal insulators is also one.
  • the present application does not limit the number of post insulators 210 and diagonal insulators 220.
  • the node fitting 230 includes a first connecting plate 231 , a second connecting plate 232 and a shielding ring 233 .
  • the first connecting plate 231 is used to connect the second end of the support insulator 210.
  • the first connecting plate 231 includes a first surface 231A and a second surface 231B that are arranged opposite to each other.
  • the second connecting plate 232 is installed on the first surface 231A and the side surface is connected to the first surface 231A.
  • the second connecting plate 232 is used to connect the second end of the inclined insulator 220.
  • the shielding ring 233 is installed on the first surface 231A.
  • the first connecting plate 231 is connected to the post insulator 210
  • the second connecting plate 232 is connected to the diagonal insulator 220, that is, the post insulator 210 and the diagonal insulator 220 are connected to different connecting plates.
  • the present application connects the post insulator 210 and the diagonal insulator 220 to different connecting plates, which can avoid concentrated force at the same position and improve the service life of the node hardware 230.
  • a shielding ring 233 is installed on the first surface 231A, so that the space of the node hardware 230 is more compact, and the shielding ring 233 can balance the voltage and protect the node hardware 230, further improving the service life of the node hardware 230, thereby improving the service life of the composite crossarm 200.
  • the node hardware 230 of the present application has a simple structure, is easy to process, has a clear force transmission path, and has a simple force form.
  • the shielding ring 233 is in a semi-enclosed structure and is disposed on the periphery of the first connecting plate 231 .
  • the shielding ring 233 is a semi-enclosed structure, that is, it is provided with a notch to avoid interference with the support insulator 210. At the same time, the shielding ring 233 is arranged outside the first connecting plate 231, which can effectively protect the first connecting plate 231 and further effectively protect the node fitting 230. In an application scenario, as shown in FIG2 , the shape of the shielding ring 233 matches the contour of the first connecting plate 231.
  • the shielding ring may also be a fully enclosed structure, as long as the second end of the support insulator does not interfere with the shielding ring.
  • the shielding ring may also be disposed on the first connecting plate, rather than being disposed on the periphery of the first connecting plate.
  • the present application does not limit the specific structure and specific installation position of the shielding ring 233.
  • At least one connecting bracket (not shown) is protruded from the shielding ring 233 , and the connecting bracket is connected to the first surface 231A.
  • the connecting bracket fixedly connects the shielding ring 233 and the first connecting plate 231 together, thereby ensuring the stability of the connection.
  • a connecting hole (not shown) is provided on the first connecting plate 231 , and the connecting bracket is connected to the first connecting plate 231 through the connecting hole.
  • the shielding ring may also be connected to the first connecting plate by welding, riveting or other connection methods.
  • the node fitting 230 further includes a third connecting plate 234 , which is mounted on the first surface 231A and connected to the second connecting plate 232 at its side, and is located inside the shielding ring 233 .
  • the third connecting plate 234 is connected to the first connecting plate 231 and the second connecting plate 232 at the same time, which can increase the connection strength between the first connecting plate 231 and the second connecting plate 232.
  • some through holes can be set on the third connecting plate 234 for construction or maintenance.
  • the third connecting plate 234 is set inside the shielding ring 233, so that the shielding ring 233 can well protect the third connecting plate 234.
  • any two of the first connecting plate 231 , the second connecting plate 232 , and the third connecting plate 234 are vertically arranged.
  • the first connecting plate 231, the second connecting plate 232, and the third connecting plate 234 are perpendicular to each other.
  • the force acting on the third connecting plate 234 can be evenly distributed to the entire node hardware 230, so that the node hardware 230 can be protected to the maximum extent.
  • the shielding ring 233 is a plane-symmetrical structure, and the symmetric plane of the shielding ring 233 is parallel to the first connecting plate 231.
  • the symmetric plane of the shielding ring 233 is parallel to the first connecting plate 231, which can improve the voltage balancing effect of the shielding ring 233.
  • multiple shielding rings can be stacked on the first surface.
  • the shielding rings can be connected by connecting brackets or by direct contact.
  • the setting of multiple layers of shielding rings can improve the voltage balancing effect of the shielding rings, thereby improving the protection of node hardware and increasing the service life of the node hardware.
  • shielding rings 233 which can be one or more.
  • the node hardware 230 further includes a hanging plate 235, which is installed on the second surface 231B and connected to the second surface 231B on the side.
  • the hanging plate 235 is provided with two first hanging holes 2351 spaced apart and a first construction hole 2352 located between the two first hanging holes 2351, wherein the two first hanging holes 2351 and the first construction hole 2352 are spaced apart in a direction parallel to the first connecting plate 231.
  • the two first hanging holes 2351 of the hanging plate 235 are used to hang the hanging hardware string 310, and the first construction hole 2352 is used for construction or maintenance.
  • the two first hanging holes 2351 and the first construction hole 2352 are arranged in parallel and spaced apart in a direction parallel to the first connecting plate 231, which can ensure the uniformity of the force on the node hardware 230.
  • the node fitting 230 is connected to the hanging fitting string 310 through the hanging plate 235.
  • Each first hanging hole 2351 corresponds to a hanging fitting string 310.
  • Each hanging fitting string 310 corresponds to two conductors 320.
  • the transmission tower 10 uses a composite cross arm 200 to suspend a single-phase four-split conductor.
  • the first construction hole 2352 can be used to mount the wire hanging hardware string 310 according to needs, and the first wire hanging hole 2351 can be used for construction or maintenance.
  • the functions of the first wire hanging hole 2351 and the first construction hole 2352 can be interchanged.
  • the first hanging hole and the first construction hole can also be set to other numbers as long as the hanging requirements are met.
  • the first connecting plate 231 is perpendicular to the symmetry plane of the board surface
  • the second connecting plate 232 is parallel to the symmetry plane of the board surface
  • the hanging plate 235 is parallel to the symmetry plane of the board surface, that is, the overall structure formed by the first connecting plate 231, the second connecting plate 232 and the hanging plate 235 is a symmetrical structure.
  • This arrangement can make the node hardware 230 more evenly stressed when connecting the post insulator 210 and the inclined insulator 220, when mounting the hanging wire hardware string 310, and during construction and maintenance, and can effectively protect the composite crossarm 200.
  • the first connecting plate 231 is provided with a first mounting hole 2311 for mounting the post insulator 210 ;
  • the second connecting plate 232 is provided with a second mounting hole 2321 and a second construction hole 2322 , the second mounting hole 2321 is used to mount the inclined insulator 220 , and the second construction hole 2322 is used for construction or maintenance.
  • the number of the first mounting holes 2311 can be one or more, and can be set according to actual conditions. By setting the first mounting holes 2311, the installation connection between the post insulator 210 and the first connecting plate 231 can be facilitated.
  • the number of the second mounting holes 2321 can be one or more, and can be set according to actual conditions. By setting the second mounting holes 2321, the installation connection between the inclined insulator 220 and the second connecting plate 232 can be facilitated.
  • the second construction holes 2322 are used to facilitate construction and provide more options for construction personnel.
  • the number of post insulators 210 is two
  • the number of diagonal insulators 220 is also two
  • the node hardware 230 includes a first connecting plate 231, two second connecting plates 232, and a shielding ring 233.
  • the two second connecting plates 232 are arranged on the first surface 231A of the first connecting plate 231 at intervals and the side surfaces are connected to the first surface 231A.
  • the first connecting plate 231 is provided with a plurality of first mounting holes for mounting the two post insulators 210
  • the two second connecting plates 232 are provided with a plurality of second mounting holes for connecting the two diagonal insulators 220, respectively.
  • the node hardware 230 further includes a third connecting plate 234 and a wire hanging plate.
  • the structures of the shielding ring 233, the third connecting plate 234, and the wire hanging plate are consistent with those described above and will not be described in detail.
  • a third construction hole is provided on the first connection plate 231 of the node fitting 230 for construction or maintenance of the composite cross arm 200 .
  • a fixing plate may be installed between the two second connecting plates 232.
  • the fixing plate 236 is provided with a third construction hole
  • the fixing plate 236 is provided on the first surface 231A and the side surface is connected to the first surface 231A
  • the fixing plate 236 is provided with a third construction hole, through which other auxiliary devices used for construction or maintenance of the composite crossarm 200 are fixedly connected to the node hardware 230.
  • the fixing plate 236 it is possible to avoid interference between other auxiliary devices and the composite crossarm 200 when they are directly installed on the first connecting plate 231, thereby facilitating installation.
  • the third construction hole may also be provided on other components of the node hardware, which is not limited here.
  • the first connecting plate 231, the second connecting plate 232, the third connecting plate 234, the wire hanging plate and the fixing plate 236 can be formed separately and then connected by welding, or can be directly formed as one piece, which is not limited here.
  • the transmission tower 10 further includes a first hinge 410 and a second hinge 420, both of which are rotatable connectors.
  • the first hinge 410 connects the first end of the post insulator 210 with the tower body 100, so that the post insulator 210 can rotate relative to the tower body 100;
  • the second hinge 420 connects the first end of the inclined insulator 220 with the tower body 100, so that the inclined insulator 220 can rotate relative to the tower body 100.
  • the two post insulators 210 and the one diagonal insulator 220 form a stable triangular pyramid structure, and the two post insulators 210 and the tower body 100 also form a stable triangular structure.
  • the composite cross arm 200 cannot rotate relative to the tower body 100 because the structure formed by the two post insulators 210, the one diagonal insulator 220 and the tower body 100 is stable.
  • the composite crossarm 200 can also serve as a conductor mount to prevent a larger accident.
  • this design has a certain effect of releasing unbalanced tension loads, it is possible to consider lowering the design specifications during the design. Compared with the fixed connection method, this application can adopt a smaller disconnection condition load design, which can reduce the manufacturing cost.
  • the post insulator 210 is usually connected to the tower body 100 in the form of a strap (including a plug-in plate, etc.). This connection method is actually between fixed connection and hinged connection.
  • This connection method is actually between fixed connection and hinged connection.
  • it is often assumed to be a hinged boundary condition, resulting in design redundancy.
  • the post insulator 210, the cable-stayed insulator 220 and the tower body 100 are all connected in a hinged manner, which is consistent with the boundary condition assumption in the stability calculation formula, and can avoid design redundancy.
  • the composite cross arm and the tower body may also be connected via a fixed connector, in which case the post insulator and the cable-stayed insulator cannot rotate relative to the tower body.
  • the tower body 100 includes a tower body 110, a first support frame 120, and a second support frame 130.
  • the first support frame 120 and the second support frame 130 are convexly disposed on the same side wall of the tower body 110, the first support frame 120 is connected to the first end of the post insulator 210, and the second support frame 130 is connected to the first end of the inclined insulator 220.
  • the first support frame 120 can be adaptively designed according to the relative position and angle between the post insulator 210 and the tower body 100
  • the second support frame 130 can be adaptively designed according to the relative position and angle between the inclined insulator 220 and the tower body 100 .
  • the arrangement of the first support frame 120 and the second support frame 130 can facilitate and efficiently maintain the composite crossarm 200 and the tower body 100; on the other hand, when a plurality of composite crossarms 200 are arranged on the tower body 100, because the spacing between the composite crossarm 200 and the tower body 100 can be adjusted by the first support frame 120 and the second support frame 130, the sizes of the plurality of composite crossarms 200 can be consistent, thereby improving production efficiency.
  • first support frame and the second support frame may not be installed, and the post insulator and the diagonal insulator may be directly installed on the tower body.
  • first support frame may be installed without installing the second support frame, in which case the post insulator is connected to the first support frame and the diagonal insulator is directly installed on the tower body, which is not limited here.
  • the transmission tower 10 includes at least one arcing device 500, each arcing device 500 includes an arcing ring 510 and an arcing end 520, and the arcing ring 510 is provided with a notch. 530, the notch 530 forms two ends of the arcing ring 510, the arcing end 520 is located at one end of the arcing ring 510, and the arcing end 520 is bent in a direction away from the arcing ring 510.
  • the arcing end 520 is an arcing ball or an arcing rod with a smooth surface.
  • Arcing devices 500 can be selectively installed at both ends of the post insulator 210 and the inclined insulator 220 for arcing to protect the composite crossarm 200.
  • the arcing ring 510 is provided with a notch 530, which can save materials on the one hand, and can avoid the arcing end 520 from contacting the arcing ring 510 on the other hand, so as to ensure the arcing effect of the arcing end 520.
  • the arcing end 520 is bent in a direction away from the arcing ring 510, so as to further improve the arcing effect of the arcing end 520.
  • both ends of the post insulator 210 are sleeved with equalizing rings.

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Abstract

本申请提供一种输电塔，输电塔包括塔身和设置于塔身上的复合横担，复合横担包括至少一个支柱绝缘子、至少一个斜拉绝缘子以及节点金具，支柱绝缘子、斜拉绝缘子的第一端均与塔身连接，第二端通过节点金具连接在一起，节点金具包括：第一连接板，用于连接支柱绝缘子的第二端，包括相背设置的第一表面、第二表面；至少一个第二连接板，安装在第一表面上且侧面与第一表面连接，用于连接斜拉绝缘子的第二端；屏蔽环，安装在第一表面上。通过上述设计可以使得节点金具的空间设计更加紧凑，且能够保证节点金具的安全性能。

Description

输电塔 技术领域
本申请涉及输电技术领域，具体涉及一种输电塔。
背景技术
在输电塔中，节点金具通常起着连接绝缘子和挂线的作用，但是目前的节点金具一方面结构复杂，占用空间大，不利于施工和维护，另一方面在雷电天气下，节点金具容易受到破坏，安全性能低。
发明内容
有鉴于此，本申请提供一种输电塔，能够减少节点金具的占用空间，保证节点金具的结构紧凑，且还能提高节点金具的安全性能，保护节点金具。
为了解决以上问题，本申请提供一种输电塔，包括塔身和设置于塔身上的复合横担，复合横担包括至少一个支柱绝缘子、至少一个斜拉绝缘子以及节点金具，支柱绝缘子、斜拉绝缘子的第一端均与塔身连接，第二端通过节点金具连接在一起，节点金具包括：第一连接板，用于连接支柱绝缘子的第二端，包括相背设置的第一表面、第二表面；至少一个第二连接板，安装在第一表面上且侧面与第一表面连接，用于连接斜拉绝缘子的第二端；屏蔽环，安装在第一表面上。
本申请将屏蔽环安装在第一连接板的第一表面上，一方面可以保证节点金具的结构紧凑，另一方面屏蔽环具有均衡电压的功能，可以对节点金具起到保护作用，从而保证节点金具的寿命。
其中，屏蔽环呈半包围结构，且设置在第一连接板的外围。
其中，屏蔽环上凸设有至少一个连接支架，连接支架与第一表面连接。
其中，节点金具进一步包括：第三连接板，安装在第一表面上且侧面与第二连接板连接，同时第三连接板位于屏蔽环的内部。
其中，第一连接板、第二连接板、第三连接板中任意两个垂直设置。
其中，屏蔽环为面对称结构，且屏蔽环的对称面与第一连接板平行。
其中，屏蔽环的数量为多个，多个屏蔽环层叠设置。
其中，节点金具进一步包括：挂线板，安装在第二表面上且侧面与第二表面连接，挂线板设有两个间隔设置的第一挂线孔以及位于两个第一挂线孔之间的第一施工孔，其中，两个第一挂线孔、第一施工孔沿着平行于第一连接板的方向间隔设置。
其中，第一连接板垂直于板面的对称面、第二连接板平行于板面的对称面、挂线板平行于板面的对称面重合。
其中，第一连接板上设有第一安装孔，用于安装支柱绝缘子；第二连接板上设有第二安装孔以及第二施工孔，第二安装孔用于安装斜拉绝缘子。
其中，输电塔进一步包括：第一铰接件，连接支柱绝缘子的第一端与塔身，以使支柱绝缘子相对塔身可转动；第二铰接件，连接斜拉绝缘子的第一端与塔身，以使斜拉绝缘子相对塔身可转动。
其中，塔身包括：塔身本体；第一支撑架以及第二支撑架，凸设在塔身本体的同一侧壁上，第一支撑架连接支柱绝缘子的第一端，第二支撑架连接斜拉绝缘子的第一端。
其中，输电塔包括至少一个招弧装置，每个招弧装置包括招弧环和招弧端，招弧环设有缺口，缺口使招弧环形成两个端部，招弧端位于招弧环的其中一个端部，且招弧端朝背离招弧环的方向弯折。
其中，斜拉绝缘子设置为两个，第二连接板设置为两个，两个第二连接板间隔设置在第一表面上，用于分别连接两个斜拉绝缘子。
其中，两个第二连接板之间还设有固定板，固定板设置在第一表面上且侧面与第一表面连接，固定板上设有第三施工孔，用于复合横担的施工和维护。
有益效果：本申请通过把屏蔽环设置在第一连接板的第一表面上，使得整个节点金具的空间设计更加紧凑，同时，屏蔽环能够均衡电压，可以保护整个节点金具，进而提升节点金具的使用寿命。
进一步本申请还把多个屏蔽环层叠设置，可以提升对节点金具的保护效果。
进一步第一铰接件和第二铰接件的设置，可以使得在支柱绝缘子发生断裂后，复合横担可以相对塔身转动，从而通过转动释放过度的不平衡张力，保护塔身，避免塔身受到破坏。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1是本申请输电塔一实施方式的结构示意图；
图2是图1中节点金具的结构示意图；
图3是图1中复合横担的结构示意图；
图4是图1中招弧装置的结构示意图；
图5是本申请输电塔另一实施方式的结构示意图；
图6是图5中的节点金具在复合横担中的放大示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
请参阅图1，本申请提供一种输电塔10，输电塔10包括塔身100和设置于塔身100上的复合横担200，复合横担200包括支柱绝缘子210、斜拉绝缘子220以及节点金具230，支柱绝缘子210的第一端、斜拉绝缘子220的第一端均与塔身100连接，第二端连接到节点金具230，节点金具230将支柱绝缘子210与斜拉绝缘子220连接在一起而形成复合横担200的端部，用于挂接导线320。
具体地，塔身100可以是格构式铁塔、杆体或者复合材料杆塔等常见结构的输电塔结构。可以在塔身100的一侧设置有复合横担200，也可以在塔身100的多侧都设置复合横担200。塔身100的一侧可以设置有一个复合横担200，也可以沿竖直方向间隔设置有多个复合横担200。
在一应用场景中，支柱绝缘子210的数量为两个，斜拉绝缘子220的数量为一个(如图1所示)，两个支柱绝缘子210、一个斜拉绝缘子220的第一端均与塔身100连接，第二端通过节点金具230连接在一起，两个支柱绝缘子210位于塔身100的同一侧，斜拉绝缘子220位于两个支柱绝缘子210的上方。在另一应用场景中，支柱绝缘子的数量为两个，斜拉绝缘子的数量也为两个，在又一应用场景中，支柱绝缘子的数量为一个，斜拉绝缘子的数量也为一个。总而言之，本申请对支柱绝缘子210、斜拉绝缘子220的数量不做限制。
请结合图1和图2，节点金具230包括第一连接板231、第二连接板232和屏蔽环233。
第一连接板231用于连接支柱绝缘子210的第二端，第一连接板231包括相背设置的第一表面231A、第二表面231B；第二连接板232安装在第一表面231A上且侧面与第一表面231A连接，第二连接板232用于连接斜拉绝缘子220的第二端；屏蔽环233安装在第一表面231A上。
其中，第一连接板231与支柱绝缘子210连接，第二连接板232与斜拉绝缘子220连接，也就是说，支柱绝缘子210、斜拉绝缘子220与不同的连接板连接。本申请将支柱绝缘子210和斜拉绝缘子220与不同的连接板连接，能够避免同一位置集中受力，提升节点金具230的使用寿命。
其中，在第一表面231A上安装了屏蔽环233，使得节点金具230的空间更加紧凑，且屏蔽环233能够均衡电压，具有保护节点金具230的作用，进一步提升了节点金具230的使用寿命，进而能够提升复合横担200的寿命。
本申请的节点金具230结构简单，便于加工，且传力路径清晰，受力形式简单。
请参阅图2，屏蔽环233呈半包围结构，且设置在第一连接板231的外围。
屏蔽环233呈半包围结构，也就是其设有一缺口，避免与支柱绝缘子210产生干涉。同时屏蔽环233设置在第一连接板231外围，可以有效保护第一连接板231，进而有效保护到节点金具230。在一应用场景中，如图2所示，屏蔽环233的形状与第一连接板231的轮廓匹配。
当然，在一些其他的实施例中，屏蔽环也可以是全包围结构，只要支柱绝缘子的第二端不与屏蔽环干涉即可。或者屏蔽环也可以设置在第一连接板上，而不是设置在第一连接板的外围。总而言之，本申请对屏蔽环233的具体结构以及具体安装位置不做限制。
其中，屏蔽环233上凸设有至少一个连接支架(图未示)，连接支架与第一表面231A连接。
连接支架将屏蔽环233与第一连接板231固定连接在一起，可以保证连接稳固性。
在一应用场景中，第一连接板231上开设有连接孔(图未示)，连接支架通过该连接孔与第一连接板231连接。
在一些其他的实施例中，屏蔽环也可以通过焊接或者铆接等连接方式与第一连接板连接。
请参阅图2，节点金具230进一步包括第三连接板234，第三连接板234安装在第一表面231A上且侧面与第二连接板232连接，同时第三连接板234位于屏蔽环233的内部。
第三连接板234同时与第一连接板231、第二连接板232连接，可以增加第一连接板231和第二连接板232的连接强度，此外，第三连接板234上还可以设置一些通孔，用于施工或维护。同时第三连接板234设置在屏蔽环233的内部，这样屏蔽环233就能很好地保护到第三连接板234。
在一些其他的实施例中，也可以选择不设置第三连接板。
请继续参阅图2，第一连接板231、第二连接板232、第三连接板234中任意两个垂直设置。
其中，第一连接板231、第二连接板232、第三连接板234三者相互垂直，当施工或维护时，作用于第三连接板234的力可以均匀分布到整个节点金具230上，这样可以最大限度的保护节点金具230。
请继续参阅图2，屏蔽环233为面对称结构，且屏蔽环233的对称面与第一连接板231平行。屏蔽环233的对称面与第一连接板231平行，可以提升屏蔽环233的电压均衡效果。
在其他实施例中，屏蔽环的数量为多个，多个屏蔽环层叠设置。
其中，在第一表面之上，可以层叠多个屏蔽环，屏蔽环之间可以通过连接支架连接，也可以是直接接触连接，通过多层的屏蔽环的设置，可以提升屏蔽环的电压均衡效果，进而提升对节点金具的保护，提升了节点金具的使用寿命。
需要说明的是，本申请对屏蔽环233的数量不做限制，其数量可以是一个，也可以是多个。
请结合图2和图3，节点金具230进一步包括挂线板235，挂线板235安装在第二表面231B上且侧面与第二表面231B连接，挂线板235设有两个间隔设置的第一挂线孔2351以及位于两个第一挂线孔2351之间的第一施工孔2352，其中，两个第一挂线孔2351、第一施工孔2352沿着平行于第一连接板231的方向间隔设置。
挂线板235的两个第一挂线孔2351用于挂载挂线金具串310，第一施工孔2352用于施工或维护。两个第一挂线孔2351、第一施工孔2352沿着平行于第一连接板231的方向平行间隔设置，可以保证节点金具230受力的均匀性。
为了更清楚的说明，请结合图1-图3，节点金具230通过挂线板235与挂线金具串310连接，每一个第一挂线孔2351对应一个挂线金具串310，每一个挂线金具串310对应两根导线320，在该实施例中，输电塔10利用复合横担200悬挂单相四分裂导线。
其中在使用时，还可以根据需求，利用第一施工孔2352挂载挂线金具串310，而利用第一挂线孔2351进行施工或者维护，也就是说，第一挂线孔2351、第一施工孔2352的功能可以互换。同时，在其他实施 方式中，第一挂线孔和第一施工孔也可以设置为其他数量，只要满足挂线需求即可。
请参阅图2，第一连接板231垂直于板面的对称面、第二连接板232平行于板面的对称面、挂线板235平行于板面的对称面重合，也就是说，第一连接板231、第二连接板232以及挂线板235构成的整体结构为对称结构，该设置可以使得节点金具230在连接支柱绝缘子210和斜拉绝缘子220、在挂载挂线金具串310、以及在施工维护时的受力更加均匀，可以有效保护到复合横担200。
请结合图1和图2，第一连接板231上设有第一安装孔2311，用于安装支柱绝缘子210；第二连接板232上设有第二安装孔2321以及第二施工孔2322，第二安装孔2321用于安装斜拉绝缘子220，第二施工孔2322用于施工或者维护。
第一安装孔2311的数量可以是一个，也可以是多个，可以根据实际情况自行设置，通过设置第一安装孔2311，可以方便支柱绝缘子210与第一连接板231之间的安装连接。第二安装孔2321的数量可以是一个，也可以是多个，可以根据实际情况自行设置，通过设置第二安装孔2321，可以方便斜拉绝缘子220与第二连接板232之间的安装连接。第二施工孔2322用于方便施工，给施工人员提供更多的选择。
参阅图5和图6，在另一实施例中，支柱绝缘子210的数量为两个，斜拉绝缘子220的数量也为两个，节点金具230包括第一连接板231、两个第二连接板232和屏蔽环233，两个第二连接板232间隔设置在第一连接板231的第一表面231A上且侧面与第一表面231A连接。第一连接板231上设有若干第一安装孔，用于安装两个支柱绝缘子210，两个第二连接板232上均设有若干第二安装孔，分别用于连接两个斜拉绝缘子220。节点金具230进一步包括第三连接板234和挂线板，屏蔽环233、第三连接板234和挂线板的结构与前述一致，不再赘述。
在一实施方式中，节点金具230的第一连接板231上设置有第三施工孔，用于复合横担200的施工或维护。
在另一实施方式中，还可以在两个第二连接板232中间安装固定板 236来设置第三施工孔，固定板236设置在第一表面231A上且侧面与第一表面231A连接，固定板236上设置第三施工孔，通过第三施工孔，使用于复合横担200施工或维护的其他辅助装置与节点金具230固定连接。通过设置固定板236，可以避免其他辅助装置直接安装到第一连接板231时与复合横担200产生干涉，从而便捷地进行安装。在其他实施方式中，也可以在节点金具的其他部件上设置第三施工孔，在此不作限定。
第一连接板231、第二连接板232、第三连接板234、挂线板与固定板236可以各自分体成型后再通过焊接方式连接，也可以直接一体成型，在此不作限制。
请参阅图1，输电塔10进一步包括第一铰接件410和第二铰接件420，第一铰接件410和第二铰接件420均为可转动连接件。第一铰接件410连接支柱绝缘子210的第一端与塔身100，以使支柱绝缘子210相对塔身100可转动；第二铰接件420连接斜拉绝缘子220的第一端与塔身100，以使斜拉绝缘子220相对塔身100可转动。
在一实施例中，当支柱绝缘子210的数量为两个，斜拉绝缘子220的数量为一个时，两个支柱绝缘子210以及一个斜拉绝缘子220构成一个稳定的三棱锥结构，同时两个支柱绝缘子210与塔身100也构成一个稳定的三角形结构。在正常情况下，虽然第一铰接件410和第二铰接件420支持转动，但是由于两个支柱绝缘子210、一个斜拉绝缘子220以及塔身100构成的结构稳定，所以复合横担200相对塔身100无法转动。
而当其中一个支柱绝缘子210发生断裂时，由于荷载突变，就驱使斜拉绝缘子220以及剩下的一个支柱绝缘子210相对塔身100发生转动，从而通过转动释放掉不平衡张力荷载，避免复合横担200完全破坏，从而在对复合横担200进行维护之前，复合横担200还可以起到导线挂载的作用，防止出现更大的事故。
由于本设计具有一定的释放不平衡张力荷载的效果，因此，在设计中可以考虑降低设计规格，相对于固定连接的方式，本申请可以采用较小断线工况荷载设计，这样就能降低制作的成本。
同时现有技术中，支柱绝缘子210通常采用搭板(含插板等)的形式与塔身100进行连接，该连接方式实际上介于固接和铰接之间，但在进行相应的受压稳定计算时，出于安全性考虑，常将其假设为铰接的边界条件，导致了设计冗余，但是在本申请的设计中，支柱绝缘子210、斜拉绝缘子220与塔身100的连接方式均为铰接，与稳定计算式中的边界条件假设一致，能够避免设计冗余。
需要说明的是，上述虽然以两个支柱绝缘子210、一个斜拉绝缘子220的实施例进行了说明，但是同样适用于两个支柱绝缘子210、两个斜拉绝缘子220的实施例。
在一些其他的实施例中，复合横担和塔身之间也可以通过固定连接件连接，此时支柱绝缘子、斜拉绝缘子均不能相对塔身发生转动。
请参阅图1，塔身100包括塔身本体110、第一支撑架120和第二支撑架130。其中，第一支撑架120以及第二支撑架130凸设在塔身本体110的同一侧壁上，第一支撑架120连接支柱绝缘子210的第一端，第二支撑架130连接斜拉绝缘子220的第一端。
第一支撑架120可以根据支柱绝缘子210与塔身100之间的相对位置及角度进行适应性的设计，第二支撑架130可以根据斜拉绝缘子220与塔身100之间的相对位置以及角度进行适应性设计。
第一支撑架120和第二支撑架130的设置，一方面可以方便高效地对复合横担200和塔身100进行维护；另一方面，当塔身100上设置多个复合横担200时，因为可以通过第一支撑架120和第二支撑架130调节复合横担200与塔身100之间的间距，因此多个复合横担200的尺寸可以一致，从而提高生产效率。
在一些其他的实施例中，也可以不安装第一支撑架和第二支撑架，直接将支柱绝缘子和斜拉绝缘子安装在塔身上。或者，仅安装第一支撑架，而不安装第二支撑架，此时支柱绝缘子与第一支撑架连接，斜拉绝缘子直接安装在塔身上，在此不作限制。
请结合图1、图3和图4，输电塔10包括至少一个招弧装置500，每个招弧装置500包括招弧环510和招弧端520，招弧环510设有缺口 530，缺口530使招弧环510形成两个端部，招弧端520位于招弧环510的其中一个端部，且招弧端520朝背离招弧环510的方向弯折。其中，招弧端520为表面圆滑设置的招弧球或者招弧棒。
在支柱绝缘子210和斜拉绝缘子220的两端均可以选择性地安装招弧装置500用于招弧，以保护复合横担200。其中，招弧环510设有缺口530，一方面，可以节省材料，另一方面，能够避免招弧端520与招弧环510接触，可以保证招弧端520的招弧效果，同时，将招弧端520朝背离招弧环510的方向弯折，可以进一步地提升招弧端520的招弧效果。
继续参阅图1，为了进一步提升安全性能，保证复合横担200的使用寿命，支柱绝缘子210的两端均套设有均压环。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (15)

  1. 一种输电塔，其特征在于，所述输电塔包括塔身和设置于所述塔身上的复合横担，所述复合横担包括至少一个支柱绝缘子、至少一个斜拉绝缘子以及节点金具，所述支柱绝缘子、所述斜拉绝缘子的第一端均与所述塔身连接，第二端通过所述节点金具连接在一起，所述节点金具包括：
    第一连接板，用于连接所述支柱绝缘子的第二端，包括相背设置的第一表面、第二表面；
    至少一个第二连接板，安装在所述第一表面上且侧面与所述第一表面连接，用于连接所述斜拉绝缘子的第二端；
    屏蔽环，安装在所述第一表面上。
  2. 根据权利要求1所述的输电塔，其特征在于，所述屏蔽环呈半包围结构，且设置在所述第一连接板的外围。
  3. 根据权利要求2所述的输电塔，其特征在于，所述屏蔽环上凸设有至少一个连接支架，所述连接支架与所述第一表面连接。
  4. 根据权利要求2所述的输电塔，其特征在于，所述节点金具进一步包括：
    第三连接板，安装在所述第一表面上且侧面与所述第二连接板连接，同时所述第三连接板位于所述屏蔽环的内部。
  5. 根据权利要求4所述的输电塔，其特征在于，所述第一连接板、所述第二连接板、所述第三连接板中任意两个垂直设置。
  6. 根据权利要求1所述的输电塔，其特征在于，所述屏蔽环为面对称结构，且所述屏蔽环的对称面与所述第一连接板平行。
  7. 根据权利要求1所述的输电塔，其特征在于，所述屏蔽环的数量为多个，多个所述屏蔽环层叠设置。
  8. 根据权利要求1所述的输电塔，其特征在于，所述节点金具进一步包括：
    挂线板，安装在所述第二表面上且侧面与所述第二表面连接，所述 挂线板设有两个间隔设置的第一挂线孔以及位于两个所述第一挂线孔之间的第一施工孔，其中，两个所述第一挂线孔、所述第一施工孔沿着平行于所述第一连接板的方向间隔设置。
  9. 根据权利要求8所述的输电塔，其特征在于，所述第一连接板垂直于板面的对称面、所述第二连接板平行于板面的对称面、所述挂线板平行于板面的对称面重合。
  10. 根据权利要求1所述的输电塔，其特征在于，
    所述第一连接板上设有第一安装孔，用于安装所述支柱绝缘子；
    所述第二连接板上设有第二安装孔以及第二施工孔，所述第二安装孔用于安装所述斜拉绝缘子。
  11. 根据权利要求1所述的输电塔，其特征在于，所述输电塔进一步包括：
    第一铰接件，连接所述支柱绝缘子的第一端与所述塔身，以使所述支柱绝缘子相对所述塔身可转动；
    第二铰接件，连接所述斜拉绝缘子的第一端与所述塔身，以使所述斜拉绝缘子相对所述塔身可转动。
  12. 根据权利要求1所述的输电塔，其特征在于，所述塔身包括：
    塔身本体；
    第一支撑架以及第二支撑架，凸设在所述塔身本体的同一侧壁上，所述第一支撑架连接所述支柱绝缘子的第一端，所述第二支撑架连接所述斜拉绝缘子的第一端。
  13. 根据权利要求1所述的输电塔，其特征在于，所述输电塔包括至少一个招弧装置，每个所述招弧装置包括招弧环和招弧端，所述招弧环设有缺口，所述缺口使所述招弧环形成两个端部，所述招弧端位于所述招弧环的其中一个端部，且所述招弧端朝背离所述招弧环的方向弯折。
  14. 根据权利要求1所述的输电塔，其特征在于，所述斜拉绝缘子设置为两个，所述第二连接板设置为两个，两个所述第二连接板间隔设置在所述第一表面上，用于分别连接两个所述斜拉绝缘子。
  15. 根据权利要求14所述的输电塔，其特征在于，两个所述第二连 接板之间还设有固定板，所述固定板设置在所述第一表面上且侧面与所述第一表面连接，所述固定板上设有第三施工孔，用于所述复合横担的施工和维护。
PCT/CN2024/109421 2023-09-25 2024-08-02 输电塔 Pending WO2025066544A1 (zh)

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