Transmission tower portal structure

Abstract

This invention relates to a gantry structure for power transmission towers, encompassing the field of power equipment technology. It includes a main tower assembly, a horizontal support assembly, and a diagonal bracing assembly. The main tower assembly is vertically oriented and comprises a lower tower body with an upper tower body mounted on its top. The horizontal support assembly is horizontally mounted on the upper tower body, with wire hanging plates fixed to both ends. The diagonal bracing assembly is located on either side of the main tower assembly, and is inclined. Each diagonal bracing assembly includes a lower diagonal brace with an upper diagonal brace mounted on its top. The top of the upper diagonal brace is connected to the upper tower body but not higher than the horizontal support assembly. A diagonal bracing connector is installed between the diagonal bracing assembly and the main tower assembly. This invention reduces production difficulty and transportation costs, while improving installation efficiency and ease of construction.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to the gantry structure of power transmission towers. Background Technology

[0002] In power transmission line engineering, gantry frames are an important type of tower structure, widely used in substation incoming and outgoing lines, line crossings, and other applications. Currently, traditional power transmission tower gantry frames mainly adopt a welded or large bolted integral structure design. However, this structure has gradually revealed the following significant technical defects and limitations in practice:

[0003] 1. Low material utilization and serious waste. The component dimensions of traditional structures are usually relatively fixed, making it difficult to accurately optimize the amount of material used according to the actual load. This leads to unnecessary waste of materials during production and use, resulting in low overall material utilization and increased raw material costs and resource consumption.

[0004] 2. Long processing and manufacturing cycle and high cost. Traditional gantry structures contain a large number of components that require high-grade welds, which imposes strict requirements on the welding process. This makes the factory prefabrication process complex, time-consuming and labor-intensive, significantly extending the processing cycle. At the same time, it increases the requirements for welding equipment and personnel skills, resulting in high manufacturing costs.

[0005] 3. Low on-site construction efficiency and reliance on manual labor. Because traditional structures often consist of large, integral components or require complex on-site welding and assembly, the on-site installation process is cumbersome. This not only requires large hoisting equipment and a large number of skilled workers, but also results in long construction cycles and high labor costs. Overall construction efficiency is difficult to meet the demands of the rapid advancement of modern power construction.

[0006] 4. Difficult transportation and deployment, poor adaptability. Large integral components are bulky and heavy, resulting in high transportation costs. They are also easily restricted by road conditions, bridge height and weight restrictions, etc. This characteristic makes it difficult to transport them efficiently and economically to engineering sites in remote areas or complex terrains (such as mountainous areas and forest areas), which seriously restricts the extension coverage and flexibility of the power grid.

[0007] In summary, the traditional transmission tower gantry structures in the existing technology have obvious shortcomings in terms of material economy, processing efficiency, construction convenience and transportation adaptability. There is an urgent need for a new type of gantry structure with a more optimized structural design that is more adapted to the needs of modern power construction in order to overcome the above-mentioned technical bottlenecks. Utility Model Content

[0008] In view of this, the technical problem to be solved by this utility model is to provide a gantry structure for power transmission towers that can reduce production difficulty and transportation costs, and improve installation efficiency and construction convenience.

[0009] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0010] The transmission tower gantry structure includes:

[0011] A main tower assembly, wherein the main tower assembly is arranged vertically, and the main tower assembly includes at least one lower tower body, and an upper tower body is installed at the top of the lower tower body;

[0012] A horizontal support device is installed horizontally on the upper tower body. Both ends of the horizontal support device extend horizontally out of the upper tower body and are located on its outer side. Hanging plates are fixed on both ends of the horizontal support device.

[0013] The diagonal bracing device and the transverse support device are respectively located on both sides of the main tower device. The diagonal bracing device is inclined and includes at least one lower diagonal bracing. An upper diagonal bracing is installed at the top of the lower diagonal bracing. The top of the upper diagonal bracing is connected to the upper tower body and is not higher than the transverse support device. Several horizontally arranged diagonal bracing connectors are installed between the diagonal bracing device and the main tower device.

[0014] Preferably, the height of the lower tower body is greater than the height of the upper tower body.

[0015] Preferably, at least one transverse connecting member is installed on both the lower tower body and the upper tower body.

[0016] Preferably, at least two inclined connectors are installed on the lower tower body, and the top ends of the two inclined connectors are connected to the same transverse connector.

[0017] Preferably, the lateral support device includes an upper crossbeam and a lower crossbeam, wherein the upper crossbeam and the lower crossbeam have the same length.

[0018] Preferably, an upper mounting assembly and a lower mounting assembly are installed on the upper tower body, the upper mounting assembly is connected to the upper crossarm, and the lower mounting assembly is connected to the lower crossarm.

[0019] Preferably, the upper mounting component and the lower mounting component have the same structure, both including a support and a rib.

[0020] Preferably, the lower inclined brace and the upper inclined brace have the same inclination angle, and the length of the lower inclined brace is greater than that of the upper inclined brace.

[0021] Preferably, the upper tower body and the lower tower body, as well as the upper diagonal brace and the lower diagonal brace, are connected by flanges, and stiffening plates are fixed on the flanges.

[0022] After adopting the above technical solution, the beneficial effects of this utility model are:

[0023] The transmission tower gantry structure of this application includes a main tower assembly, a horizontal support assembly, and a diagonal bracing assembly. The main tower assembly is vertically arranged and includes a lower tower body and an upper tower body. The horizontal support assembly is horizontally installed on the upper tower body, and hanging plates are fixed to both ends of the horizontal support assembly. The diagonal bracing assembly is inclined and includes a lower diagonal brace and an upper diagonal brace. Several horizontally arranged diagonal bracing connectors are installed between the diagonal bracing assembly and the main tower assembly. The main tower assembly, horizontal support assembly, and diagonal bracing assembly all adopt a modular design, realizing standardized factory production of core components. On-site construction only requires simple bolt or clip connections, completely eliminating the large amount of high-altitude welding work required by traditional structures. This not only improves on-site installation efficiency and significantly shortens the construction period, but also significantly reduces construction difficulty, labor requirements, and quality risks associated with welding.

[0024] At the same time, by breaking down traditional bulky large components into small, lightweight standardized modules, the size and weight of individual transported items are reduced, enabling them to be conveniently transported to remote areas, mountainous regions, or engineering sites with complex road conditions using conventional transportation tools. This reduces transportation costs, effectively solves the key problem of limited transportation of traditional gantry cranes, and expands the coverage of power grid construction.

[0025] The diagonal bracing device includes a lower diagonal brace and an upper diagonal brace. Combined with multiple diagonal bracing connectors installed between the device and the main tower, it supports the adjustment of the height of the diagonal bracing device and the adaptive adjustment of the installation tilt angle. This effectively addresses the needs of different terrain elevation differences, load changes, and future line modifications, significantly improving the versatility and adaptability of the structure. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a front view of the transmission tower gantry structure according to an embodiment of this utility model;

[0028] Figure 2 yes Figure 1 Side view;

[0029] Figure 3 yes Figure 1 Top view of the upper crossbeam;

[0030] Figure 4 yes Figure 1 Enlarged view of section A in the middle;

[0031] Figure 5 yes Figure 2 Enlarged view of section B;

[0032] Figure 6 yes Figure 2 Enlarged view of section C;

[0033] In the picture:

[0034] 1. Main tower assembly; 11. Lower tower body; 12. Upper tower body; 13. Horizontal connector; 14. Diagonal connector; 15. Upper mounting assembly; 16. Lower mounting assembly; 161. Support; 162. Rib plate;

[0035] 2. Horizontal support device; 21. Hanging plate; 22. Upper crossarm; 23. Lower crossarm;

[0036] 3. Diagonal bracing device; 31. Lower diagonal brace; 32. Upper diagonal brace; 33. Flange; 34. Stiffener;

[0037] 4. Diagonal brace connector. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] like Figures 1 to 6 As shown, this utility model includes a main tower device 1, a horizontal support device 2, and a diagonal bracing device 3. The main tower device 1 is vertically arranged and includes at least one lower tower body 11, with an upper tower body 12 installed at the top of the lower tower body 11. The horizontal support device 2 is horizontally installed on the upper tower body 12, with both ends of the horizontal support device 2 extending horizontally outward from the upper tower body 12 and located outside it. A wire hanging plate 21 is fixed on both ends of the horizontal support device 2, and the wire hanging plate 21 is used to connect wire fittings.

[0040] The diagonal bracing device 3 and the transverse support device 2 are respectively located on both sides of the main tower device 1. The diagonal bracing device 3 is inclined and includes at least one lower diagonal bracing 31. An upper diagonal bracing 32 is installed at the top of the lower diagonal bracing 31. The top of the upper diagonal bracing 32 is connected to the upper tower body 12 and is not higher than the transverse support device 2. Several horizontally arranged diagonal bracing connectors 4 are installed between the diagonal bracing device 3 and the main tower device 1.

[0041] The main tower assembly 1, the transverse support assembly 2, and the diagonal bracing assembly 3 all adopt a modular design, enabling standardized factory production of core components. On-site construction requires only simple bolt or clip connections, completely eliminating the extensive high-altitude welding work required by traditional structures. This not only improves on-site installation efficiency and significantly shortens the construction period, but also significantly reduces construction difficulty, labor requirements, and quality risks associated with welding.

[0042] At the same time, by breaking down traditional bulky large components into small, lightweight standardized modules, the size and weight of individual transported items are reduced, enabling them to be conveniently transported to remote areas, mountainous regions, or engineering sites with complex road conditions using conventional transportation tools. This reduces transportation costs, effectively solves the key problem of limited transportation of traditional gantry cranes, and expands the coverage of power grid construction.

[0043] The lower tower body 11 is taller than the upper tower body 12. During construction, the lower tower body 11 is installed first. The number of lower tower bodies 11 is adjusted based on the required installation height, and then the upper tower body 12 is installed. To improve the connection strength between the lower tower body 11 and the upper tower body 12, at least one transverse connector 13 is installed on both the lower tower body 11 and the upper tower body 12. At least two oblique connectors 14 are installed on the lower tower body 11, with the tops of the two oblique connectors 14 connected to the same transverse connector 13. The number of transverse connectors 13 and oblique connectors 14 is determined based on the heights of the lower tower body 11 and the upper tower body 12. Preferably, two transverse connectors 13 are provided on each of the lower tower body 11 and the upper tower body 12.

[0044] The transverse support device 2 includes an upper crossarm 22 and a lower crossarm 23, with the upper crossarm 22 and the lower crossarm 23 having the same length. An upper mounting assembly 15 and a lower mounting assembly 16 are installed on the upper tower body 12. The upper mounting assembly 15 is connected to the upper crossarm 22, and the lower mounting assembly 16 is connected to the lower crossarm 23.

[0045] The upper mounting assembly 15 and the lower mounting assembly 16 have identical structures, both including a support 161 and a rib plate 162. The upper mounting assembly 15 and the lower mounting assembly 16 are used to connect the upper crossarm 22 and the lower crossarm 23, respectively, changing the original welding method to a bolted connection. This facilitates modular assembly, improves installation efficiency, and reduces construction difficulty. By setting the support 161 and the rib plate 162, the rigidity of the joint is enhanced, deformation is prevented, the upper crossarm 22 and the lower crossarm 23 are accurately positioned, installation efficiency is improved, bolt stress is optimized, loosening is avoided, and construction difficulty is reduced.

[0046] The diagonal bracing device 3 includes a lower diagonal brace 31 and an upper diagonal brace 32. Combined with multiple diagonal bracing connectors 4 installed between it and the main tower device 1, it supports the adjustment of the height of the diagonal bracing device 3 and the adaptive adjustment of the installation tilt angle. This can effectively cope with different terrain elevation differences, load changes and future line modification needs, and significantly improve the versatility and adaptability of the structure.

[0047] In this design, the lower diagonal brace 31 and the upper diagonal brace 32 have the same inclination angle, and the lower diagonal brace 31 is longer than the upper diagonal brace 32. In this application, the upper tower body 12 and the lower tower body 11, as well as the upper diagonal brace 32 and the lower diagonal brace 31, are connected by flanges 33, with stiffening plates 34 fixed to the flanges 33. By setting the stiffening plates 34, the rigidity of the flanges 33 can be enhanced, preventing deformation under stress and loss of bolt preload, ensuring precise connection of segmented components, improving installation efficiency, and providing stable support for height or angle adjustments to adapt to dynamic load requirements.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transmission tower gantry structure, characterized in that, include: A main tower assembly, wherein the main tower assembly is arranged vertically, and the main tower assembly includes at least one lower tower body, and an upper tower body is installed at the top of the lower tower body; A horizontal support device is installed horizontally on the upper tower body. Both ends of the horizontal support device extend horizontally out of the upper tower body and are located outside it. Hanging plates are fixed on both ends of the horizontal support device. The diagonal bracing device and the transverse support device are respectively located on both sides of the main tower device. The diagonal bracing device is inclined and includes at least one lower diagonal bracing. An upper diagonal bracing is installed at the top of the lower diagonal bracing. The top of the upper diagonal bracing is connected to the upper tower body and is not higher than the transverse support device. Several horizontally arranged diagonal bracing connectors are installed between the diagonal bracing device and the main tower device.

2. The electric transmission tower gantry structure of claim 1, wherein, The height of the lower tower body is greater than the height of the upper tower body.

3. The electric transmission tower gantry structure of claim 1, wherein, At least one transverse connecting member is installed on both the lower tower body and the upper tower body.

4. The transmission tower gantry structure as described in claim 3, characterized in that, At least two inclined connectors are installed on the lower tower body, and the top ends of the two inclined connectors are connected to the same transverse connector.

5. The electric transmission tower gantry structure of claim 1, wherein, The lateral support device includes an upper crossbeam and a lower crossbeam, and the upper crossbeam and the lower crossbeam have the same length.

6. The electric transmission tower gantry structure of claim 5, wherein, An upper mounting assembly and a lower mounting assembly are installed on the upper tower body. The upper mounting assembly is connected to the upper crossarm, and the lower mounting assembly is connected to the lower crossarm.

7. The electric transmission tower gantry structure of claim 6, wherein, The upper mounting assembly and the lower mounting assembly have the same structure, both including a support and a rib.

8. The electric transmission tower gantry structure of claim 1, wherein, The lower inclined brace and the upper inclined brace have the same inclination angle, and the length of the lower inclined brace is greater than that of the upper inclined brace.

9. The electric transmission tower gantry structure of claim 1, wherein, The upper tower body and the lower tower body, as well as the upper diagonal brace and the lower diagonal brace, are connected by flanges, and stiffening plates are fixed on the flanges.

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