Transmission tower

Abstract

The present application provides a transmission tower. The transmission tower comprises a tower body and composite crossarms arranged on the tower body. Each composite crossarm comprises at least one post insulator, at least one cable-stayed insulator, and a joint fitting. Both a first end of the post insulator and a first end of the cable-stayed insulator are connected to the tower body; and a second end of the post insulator is connected to a second end of the cable-stayed insulator by means of the joint fitting. The joint fitting comprises: a first connecting plate, used for being connected to the second end of the post insulator and having a first surface and a second surface which are oppositely arranged; at least one second connecting plate, mounted on the first surface and having the side surface to be connected to the first surface, the second connecting plate being used for being connected to the second end of the cable-stayed insulator; and a shielding ring, mounted on the first surface. By means of the design, the space design of the joint fitting can be more compact, and the safety performance of the joint fitting can be ensured.

Description

transmission towers Technical Field

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

[0002] In transmission towers, node hardware usually connects insulators and hanging wires. However, current node hardware has a complex structure and occupies a large space, which is not conducive to construction and maintenance. On the other hand, node hardware is easily damaged in lightning weather and has low safety performance.

[0003] Summary of the Invention

[0004] In view of this, 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 and protect the node hardware.

[0005] In order to solve the above problems, 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 including: 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.

[0006] In this application, the shielding ring is installed on the first surface of the first connecting plate. On the one hand, it can ensure the compact structure of the node hardware. 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.

[0007] The shielding ring is in a semi-enclosed structure and is arranged on the periphery of the first connecting plate.

[0008] Wherein, at least one connecting bracket is protruded from the shielding ring, and the connecting bracket is connected to the first surface.

[0009] The node fitting further includes: a third connecting plate, which is mounted on the first surface and connected to the second connecting plate on its side, and the third connecting plate is located inside the shielding ring.

[0010] Wherein, any two of the first connecting plate, the second connecting plate and the third connecting plate are vertically arranged.

[0011] The shielding ring is a plane-symmetrical structure, and the symmetry plane of the shielding ring is parallel to the first connecting plate.

[0012] There are multiple shielding rings, which are stacked.

[0013] Among them, the node hardware further includes: a hanging plate, which is installed on the second surface and connected to the second surface on the side. The hanging plate is provided with two first hanging holes set at intervals and a first construction hole located between the two first hanging holes. The two first hanging holes and the first construction hole are set at intervals along a direction parallel to the first connecting plate.

[0014] The first connecting plate is perpendicular to the symmetry plane of the plate surface, the second connecting plate is parallel to the symmetry plane of the plate surface, and the wire hanging plate is parallel to the symmetry plane of the plate surface and overlaps.

[0015] Among them, 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.

[0016] The transmission tower further includes: 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.

[0017] 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.

[0018] 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, and 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.

[0019] There are two oblique-pull insulators, two second connecting plates, and two second connecting plates are arranged on the first surface at intervals for connecting the two oblique-pull insulators respectively.

[0020] A fixing plate is 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 crossarm.

[0021] Beneficial effect: This 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 improving the service life of the node hardware.

[0022] Furthermore, the present application also stacks multiple shielding rings to enhance the protection effect of node hardware.

[0023] Furthermore, the arrangement of the 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 damage to the tower body. 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 transmission tower of the present application;

[0026] FIG2 is a schematic structural diagram of the node hardware in FIG1 ;

[0027] Figure 3 is a schematic structural diagram of the composite crossarm in Figure 1;

[0028] FIG4 is a schematic structural diagram of the arcing device in FIG1 ;

[0029] FIG5 is a schematic structural diagram of another embodiment of the transmission tower of the present application;

[0030] FIG6 is an enlarged schematic diagram of the node fitting in FIG5 in the composite crossarm. DETAILED DESCRIPTION

[0031] 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.

[0032] Referring to Figure 1, 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 ends of the post insulator 210 and the first ends of the diagonal insulator 220 are both connected to the tower body 100, and the second ends are 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 a conductor 320.

[0033] Specifically, the tower body 100 can be a common transmission tower structure, such as a lattice iron tower, a pole body, or a composite pole tower. A composite crossarm 200 can be provided on one side of the tower body 100, or on multiple sides of the tower body 100. A single composite crossarm 200 can be provided on one side of the tower body 100, or multiple composite crossarms 200 can be provided at intervals along the vertical direction.

[0034] In one application scenario, there are two post insulators 210 and one diagonal insulator 220 (as shown in FIG1 ). The first ends of both post insulators 210 and one diagonal insulator 220 are connected to the tower body 100, and the second ends are connected together via a node fitting 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. In another application scenario, there are two post insulators and two diagonal insulators. In yet another application scenario, there is one post insulator and one diagonal insulator. In summary, this application does not limit the number of post insulators 210 and diagonal insulators 220.

[0035] 1 and 2 , the node fitting 230 includes a first connecting plate 231 , a second connecting plate 232 and a shielding ring 233 .

[0036] The first connecting plate 231 is used to connect the second end of the post insulator 210. The first connecting plate 231 includes a first surface 231A and a second surface 231B 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.

[0037] The first connecting plate 231 is connected to the post insulator 210, and the second connecting plate 232 is connected to the diagonal insulator 220. In other words, the post insulator 210 and the diagonal insulator 220 are connected to different connecting plates. This arrangement prevents concentrated force at the same location and increases the service life of the node hardware 230.

[0038] Among them, a shielding ring 233 is installed on the first surface 231A, making the space of the node hardware 230 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.

[0039] 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.

[0040] Referring to FIG. 2 , the shielding ring 233 is a semi-enclosed structure and is disposed on the periphery of the first connecting plate 231 .

[0041] Shielding ring 233 has a semi-enclosed structure, meaning it has a gap to prevent interference with post insulator 210. Shielding ring 233 is positioned around first connecting plate 231, effectively protecting it and, by extension, node fitting 230. In one application scenario, as shown in Figure 2, the shape of shielding ring 233 matches the contour of first connecting plate 231.

[0042] Of course, in some other embodiments, the shielding ring can also be a fully enclosed structure, as long as the second end of the post insulator does not interfere with the shielding ring. Alternatively, the shielding ring can be disposed on the first connecting plate rather than on its periphery. In short, this application does not limit the specific structure or specific installation location of the shielding ring 233.

[0043] 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.

[0044] The connecting bracket securely connects the shielding ring 233 and the first connecting plate 231 together, thereby ensuring a stable connection.

[0045] In one application scenario, a connecting hole (not shown) is defined on the first connecting plate 231 , and the connecting bracket is connected to the first connecting plate 231 through the connecting hole.

[0046] In some other embodiments, the shielding ring may also be connected to the first connecting plate by welding, riveting or other connection methods.

[0047] 2 , the node fitting 230 further includes a third connecting plate 234 . The third connecting plate 234 is mounted on the first surface 231A and connected to the second connecting plate 232 at its side. The third connecting plate 234 is located inside the shielding ring 233 .

[0048] The third connecting plate 234 is connected to both the first connecting plate 231 and the second connecting plate 232, thereby increasing the connection strength between the first connecting plate 231 and the second connecting plate 232. Furthermore, the third connecting plate 234 may be provided with through holes for construction and maintenance. Furthermore, the third connecting plate 234 is disposed within the shielding ring 233, thereby effectively protecting the shielding ring 233 from the third connecting plate 234.

[0049] In some other embodiments, the third connecting plate may not be provided.

[0050] Continuing to refer to FIG. 2 , any two of the first connecting plate 231 , the second connecting plate 232 , and the third connecting plate 234 are vertically arranged.

[0051] Among them, the first connecting plate 231, the second connecting plate 232, and the third connecting plate 234 are perpendicular to each other. During construction or maintenance, the force acting on the third connecting plate 234 can be evenly distributed to the entire node hardware 230, which can maximize the protection of the node hardware 230.

[0052] 2 , the shielding ring 233 is a plane-symmetrical structure, and the symmetry plane of the shielding ring 233 is parallel to the first connecting plate 231 . The symmetry 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 .

[0053] In other embodiments, there are multiple shielding rings, and the multiple shielding rings are stacked.

[0054] Among them, multiple shielding rings can be stacked on the first surface. The shielding rings can be connected by connecting brackets or by direct contact. By setting up multiple layers of shielding rings, the voltage balancing effect of the shielding rings can be improved, thereby improving the protection of the node hardware and increasing the service life of the node hardware.

[0055] It should be noted that the present application does not limit the number of shielding rings 233 , which can be one or more.

[0056] Please refer to Figures 2 and 3. 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.

[0057] The two first hanging holes 2351 of the hanging plate 235 are used to mount 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 parallel and spaced apart in a direction parallel to the first connecting plate 231 to ensure uniform force on the node hardware 230.

[0058] For a clearer explanation, please refer to Figures 1 to 3. The node hardware 230 is connected to the hanging hardware string 310 through the hanging plate 235. Each first hanging hole 2351 corresponds to a hanging hardware string 310. Each hanging hardware string 310 corresponds to two conductors 320. In this embodiment, the transmission tower 10 uses a composite crossarm 200 to suspend a single-phase four-split conductor.

[0059] During use, the first construction hole 2352 can be used to mount the wire hanging hardware string 310, while the first wire hanging hole 2351 can be used for construction or maintenance. In other words, the functions of the first wire hanging hole 2351 and the first construction hole 2352 can be interchanged. In other embodiments, the number of first wire hanging holes and first construction holes can also be set to other numbers as long as the wire hanging requirements are met.

[0060] Please refer to Figure 2. The first connecting plate 231 is perpendicular to the symmetry plane of the plate surface, the second connecting plate 232 is parallel to the symmetry plane of the plate surface, and the hanging plate 235 is parallel to the symmetry plane of the plate surface, which overlap. That is to say, the overall structure composed of 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 hardware string 310, and during construction and maintenance, and can effectively protect the composite crossarm 200.

[0061] 1 and 2 , 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.

[0062] The number of first mounting holes 2311 can be one or more, and can be set as needed. Providing first mounting holes 2311 facilitates the installation and connection between post insulator 210 and first connecting plate 231. The number of second mounting holes 2321 can be one or more, and can be set as needed. Providing second mounting holes 2321 facilitates the installation and connection between diagonal insulator 220 and second connecting plate 232. Second construction holes 2322 facilitate construction, providing construction personnel with more options.

[0063] Referring to Figures 5 and 6 , in another embodiment, there are two post insulators 210 and two diagonal insulators 220. A node fitting 230 includes a first connecting plate 231, two second connecting plates 232, and a shielding ring 233. The two second connecting plates 232 are spaced apart on the first surface 231A of the first connecting plate 231 and are laterally 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 each provided with a plurality of second mounting holes for connecting the two diagonal insulators 220. The node fitting 230 further includes a third connecting plate 234 and a wire hanging plate. The structures of the shielding ring 233, third connecting plate 234, and wire hanging plate are consistent with those described above and are not further described.

[0064] In one embodiment, a third construction hole is provided on the first connecting plate 231 of the node fitting 230 for construction or maintenance of the composite crossarm 200 .

[0065] In another embodiment, a fixing plate 236 can be installed between the two second connecting plates 232 to provide a third construction hole. The fixing plate 236 is disposed on the first surface 231A and is connected to the first surface 231A from the side. The fixing plate 236 is provided with a third construction hole. Other auxiliary devices used for construction or maintenance of the composite crossarm 200 are fixedly connected to the node hardware 230 through the third construction hole. The provision of the fixing plate 236 can prevent interference between other auxiliary devices and the composite crossarm 200 when directly installed on the first connecting plate 231, thereby facilitating installation. In other embodiments, the third construction hole can also be provided on other components of the node hardware, which are not limited here.

[0066] 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.

[0067] Referring to Figure 1 , 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 to the tower body 100, allowing the post insulator 210 to rotate relative to the tower body 100. The second hinge 420 connects the first end of the cable-stayed insulator 220 to the tower body 100, allowing the cable-stayed insulator 220 to rotate relative to the tower body 100.

[0068] In one embodiment, when there are two post insulators 210 and one diagonal insulator 220, the two post insulators 210 and the one diagonal insulator 220 form a stable triangular pyramid structure. Simultaneously, the two post insulators 210 and the tower body 100 also form a stable triangular structure. Under normal circumstances, although the first hinge 410 and the second hinge 420 support rotation, the composite crossarm 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.

[0069] When one of the post insulators 210 breaks, the sudden change in load causes the inclined insulator 220 and the remaining post insulator 210 to rotate relative to the tower body 100, thereby releasing the unbalanced tension load through rotation and avoiding complete damage to the composite crossarm 200. Therefore, before maintenance is performed on the composite crossarm 200, the composite crossarm 200 can also serve as a conductor mounting to prevent a larger accident.

[0070] Since 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 load design, which can reduce the production cost.

[0071] At the same time, in the existing technology, the support 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. However, when performing the corresponding compressive stability calculation, for safety reasons, it is often assumed to be a hinged boundary condition, resulting in design redundancy. However, in the design of this application, the connection method between the support insulator 210 and the inclined insulator 220 and the tower body 100 is hinged, which is consistent with the boundary condition assumption in the stability calculation formula, and can avoid design redundancy.

[0072] It should be noted that although the above description is based on an embodiment of two post insulators 210 and one oblique-pull insulator 220 , it is also applicable to an embodiment of two post insulators 210 and two oblique-pull insulators 220 .

[0073] In some other embodiments, the composite cross-arm and the tower body may also be connected via a fixed connector, in which case the post insulators and the diagonal insulators cannot rotate relative to the tower body.

[0074] Referring to Figure 1 , the tower 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 protruding from the same sidewall 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 diagonal insulator 220.

[0075] 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 , and 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 .

[0076] The arrangement of the first support frame 120 and the second support frame 130, on the one hand, allows for convenient and efficient maintenance of 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, the sizes of the plurality of composite crossarms 200 can be made consistent 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, thereby improving production efficiency.

[0077] In some other embodiments, the first and second support frames may not be installed, and the post insulators and diagonal insulators may be directly installed on the tower body. Alternatively, only the first support frame may be installed without the second support frame. In this case, the post insulators are connected to the first support frame, and the diagonal insulators are directly installed on the tower body. This is not a limitation.

[0078] Referring to Figures 1, 3, and 4, the transmission tower 10 includes at least one arc-striking device 500. Each arc-striking device 500 includes an arc-striking ring 510 and an arc-striking end 520. The arc-striking ring 510 has a notch 530, which forms two ends of the arc-striking ring 510. The arc-striking end 520 is located at one end of the arc-striking ring 510 and is bent away from the arc-striking ring 510. The arc-striking end 520 is a smooth arc-striking ball or arc-striking rod.

[0079] 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. This notch 530 saves material and prevents contact between the arcing end 520 and the arcing ring 510, ensuring the arcing effect of the arcing end 520. Furthermore, bending the arcing end 520 away from the arcing ring 510 further enhances the arcing effect of the arcing end 520.

[0080] Continuing to refer to FIG. 1 , in order to further improve safety performance and ensure the service life of the composite cross-arm 200 , both ends of the post insulator 210 are sleeved with equalizing rings.

[0081] 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 transmission tower, characterized in that: The transmission tower comprises a tower body and a composite cross arm arranged on the tower body, wherein the composite cross arm comprises at least one post insulator, at least one inclined insulator and a node hardware, wherein the first ends of the post insulator and the inclined insulator are connected to the tower body, and the second ends are connected together through the node hardware, and the node hardware comprises: A first connecting plate, used for connecting the second end of the post insulator, comprising a first surface and a second surface disposed opposite to each other; At least one second connecting plate, mounted on the first surface and connected to the first surface at a side, for connecting the second end of the inclined insulator; A shielding ring is mounted on the first surface.

2. The transmission tower according to claim 1, characterized in that: The shielding ring is in a semi-enclosed structure and is arranged on the periphery of the first connecting plate.

3. The transmission tower according to claim 2, characterized in that: At least one connecting bracket is protrudingly provided on the shielding ring, and the connecting bracket is connected to the first surface.

4. The transmission tower according to claim 2, characterized in that: The node hardware further comprises: The third connecting plate is mounted on the first surface and connected to the second connecting plate at its side, and the third connecting plate is located inside the shielding ring.

5. The transmission tower according to claim 4, characterized in that: Any two of the first connecting plate, the second connecting plate, and the third connecting plate are vertically arranged.

6. The transmission tower according to claim 1, characterized in that: The shielding ring is a plane-symmetrical structure, and the symmetry plane of the shielding ring is parallel to the first connecting plate.

7. The transmission tower according to claim 1, characterized in that: There are multiple shielding rings, and the multiple shielding rings are stacked.

8. The transmission tower according to claim 1, characterized in that: The node hardware further comprises: A wire hanging board is installed on the second surface and the side surface is connected to the second surface. The wire hanging plate is provided with two first wire hanging holes arranged at intervals and a first construction hole located between the two first wire hanging holes, wherein the two first wire hanging holes and the first construction hole are arranged at intervals along a direction parallel to the first connecting plate.

9. The transmission tower according to claim 8, characterized in that: 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, and the hanging plate is parallel to the symmetry plane of the board surface, and they overlap.

10. The transmission tower according to claim 1, characterized in that: The first connecting plate is provided with a first mounting hole for mounting 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 for mounting the oblique-stayed insulator.

11. The transmission tower according to claim 1, characterized in that: The transmission tower further comprises: A first hinged member, connecting the first end of the post insulator and the tower body, so that the post insulator can rotate relative to the tower body; The second hinged member connects the first end of the oblique-stayed insulator and the tower body, so that the oblique-stayed insulator can rotate relative to the tower body.

12. The transmission tower according to claim 1, characterized in that: The tower body comprises: The tower body; The first support frame and the second support frame are protrudingly arranged 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.

13. The transmission tower according to claim 1, characterized in that: The transmission tower includes at least one arcing device, each of which includes an arcing ring and an arcing end. The arcing ring is provided with a notch, and the notch forms two ends of the arcing ring. The arcing end is located at one of the ends of the arcing ring, and the arcing end is bent in a direction away from the arcing ring.

14. The transmission tower according to claim 1, characterized in that The number of the oblique-pull insulators is two, the number of the second connecting plates is two, and the two second connecting plates are arranged on the first surface at intervals to connect the two oblique-pull insulators respectively.

15. The transmission tower according to claim 14, characterized in that: 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. The fixing plate is provided with a third construction hole for the construction and maintenance of the composite cross arm.

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