Anti-icing high-voltage transmission tower

Abstract

The application provides an anti-icing high-voltage transmission tower, and relates to the technical field of high-voltage transmission towers, which comprises a lower connecting seat and a cross arm cantilever frame; the lower connecting seat is fixedly connected with the high-voltage transmission tower, and the lower connecting seat is externally connected with the cross arm cantilever frame; the upper connecting seat is fixedly connected with the high-voltage transmission tower, the upper connecting seat is externally connected with an upper connecting frame, and the bottom of the upper connecting frame is connected with a lower connecting frame; the upper connecting frame is internally connected with a hydraulic buffer, and the hydraulic buffer is connected with the lower connecting frame. The cross arm cantilever frame adopts an integrated wedge-shaped gradual cantilever structure design, the cross section of the hanging point part gradually changes from wide to narrow and is inclined, and after the ice accumulation, the ice body self-weight and the shearing force of the wedge-shaped inclined surface are utilized to make the ice automatically break and slide, so that the problems of easy ice accumulation at the end of the cross arm and ice body load concentration are solved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage transmission tower technology, and in particular to an anti-icing high-voltage transmission tower. Background Technology

[0002] High-voltage transmission towers are key power transmission and distribution facilities constructed with steel frame structures. Their height is typically between 25 and 40 meters. They primarily bear the responsibility of supporting overhead transmission lines, providing reliable support for the conductors through a stable structure. At the same time, they play a protective role, effectively preventing the conductors from coming into dangerous contact with external objects, and ensuring that electrical energy can be safely, stably, and reliably transmitted to various power-consuming areas.

[0003] Currently, the components of existing high-voltage transmission towers are mainly connected and fixed by bolts during operation, which makes it difficult to effectively release the stress caused by icing. Once the ice layer on the outside of the tower is thick, it is easy to become unstable due to ice overload, which poses a serious threat to the safe operation of high-voltage transmission towers. Summary of the Invention

[0004] This invention relates to an anti-icing high-voltage transmission tower, which solves the problem that in the operation of existing high-voltage transmission towers, the various components are mainly connected and fixed by bolts, which makes it difficult to effectively release the stress generated by icing. This can easily lead to instability due to icing overload, posing a serious threat to the safe operation of high-voltage transmission towers.

[0005] In a first aspect, the present invention provides an anti-icing high-voltage transmission tower, specifically comprising: a lower connecting seat, a crossarm cantilever frame, an upper connecting seat, an upper connecting frame, a lower connecting frame, a hydraulic buffer, long bolts, and nuts; the lower connecting seat is fixedly connected to the high-voltage transmission tower, and the crossarm cantilever frame is externally connected to the lower connecting seat; the upper connecting seat is fixedly connected to the high-voltage transmission tower, the upper connecting frame is externally connected to the upper connecting seat, and the lower connecting frame is connected to the bottom of the upper connecting frame; a hydraulic buffer is internally connected to the upper connecting frame, and the hydraulic buffer is connected to the lower connecting frame; a long bolt is connected to the bottom of the lower connecting frame, and the lower connecting frame is connected to the top of the crossarm cantilever frame via the long bolt, and a nut is externally connected to the long bolt.

[0006] In a preferred embodiment of the present invention, the crossarm cantilever is rotatably connected to the lower connecting seat, and the rotation angle of the crossarm cantilever is 0 to 5 degrees.

[0007] In a preferred embodiment of the present invention, the bottom of the lower connecting frame is rotatably connected to the crossbeam cantilever frame, the lower connecting frame is slidably connected to the upper connecting frame, and the top of the upper connecting frame is rotatably connected to the upper connecting seat.

[0008] As a preferred embodiment of the present invention, the bottom of the upper connecting frame is provided with a lower crossbar, and the lower connecting frame is provided with sliding holes on both sides, and the lower crossbar is slidably connected in the sliding holes.

[0009] As a preferred embodiment of the present invention, the upper connecting frame is provided with upper sliding holes on both sides, and the lower connecting frame is provided with an upper crossbar at the top, with both ends of the upper crossbar slidably connected to the upper sliding holes.

[0010] In a preferred embodiment of the present invention, the top of the hydraulic buffer is connected to the upper crossbar, and the bottom of the hydraulic buffer is connected to the lower crossbar.

[0011] As a preferred embodiment of the present invention, the top of the crossarm cantilever frame is provided with an inner connecting hole, the bottom of the lower connecting frame is provided with an outer connecting hole, the inner connecting hole and the outer connecting hole are connected, a long bolt passes through the inner connecting hole and the outer connecting hole, a nut is threadedly connected to the long bolt, and the nut contacts the lower connecting frame.

[0012] As a preferred embodiment of the present invention, the outer wall of the high-voltage transmission tower is provided with an integrally formed spiral rib.

[0013] This invention provides an anti-icing high-voltage transmission tower, which has the following beneficial effects: When in use, the crossarm cantilever frame of this invention adopts an integrated wedge-shaped gradual cantilever structure design. The cross section at the hanging point gradually slopes from wide to narrow. After ice accumulates, the ice automatically breaks and slides off due to the weight of the ice and the shear force of the wedge-shaped inclined surface, thus solving the problems of ice accumulation at the ends of the crossarm and concentrated ice load.

[0014] Furthermore, when the icing load exceeds the threshold, the crossarm cantilever generates a controllable micro-deflection, using structural deformation to tear the continuous ice layer, releasing the ice load stress, and unloading purely through structural mechanics without any driving device, preventing the tower from becoming unstable due to icing overload; the lower crossbar slides with the lower sliding hole, and the upper crossbar slides with the upper sliding hole, limiting the sliding range of the upper and lower connecting frames; when the crossarm cantilever deflects slightly downward, the hydraulic buffer is compressed by force, and after the structural deformation tears the continuous ice layer, the force on the crossarm cantilever decreases, and the crossarm cantilever is pushed by the hydraulic buffer to automatically achieve a slight upward deflection and reset.

[0015] In addition, when the crossarm cantilever frame is connected to the lower connecting frame, the inner connecting hole and the outer connecting hole are in a connected state. The long bolt is inserted into the inner connecting hole and the outer connecting hole, and the nut is tightened. The crossarm cantilever frame and the lower connecting frame are connected together by the long bolt, making assembly more convenient.

[0016] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall axonometric structure of this application is shown; Figure 2 A schematic diagram of the connection structure of the lower connecting seat, crossbeam cantilever, upper connecting seat, upper connecting frame and lower connecting frame of this application is shown. Figure 3 A schematic diagram of the axonal structure of the crossarm cantilever frame of this application is shown; Figure 4 A schematic diagram of the connection structure of the upper connecting frame, lower connecting frame and hydraulic buffer of this application is shown; Figure 5 This paper shows a schematic diagram of the disassembled upper and lower connecting frames of this application; Figure 6 A partial enlarged view of point A in this application is shown.

[0020] Figure label: 1. Lower connecting seat; 2. Crossarm cantilever frame; 21. Inner connecting hole; 3. Upper connecting seat; 4. Upper connecting frame; 41. Lower crossbar; 42. Upper sliding hole; 5. Lower connecting frame; 51. Lower sliding hole; 52. Upper crossbar; 53. Outer connecting hole; 6. Hydraulic buffer; 7. Long bolt; 8. Nut; 9. High-voltage transmission tower. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 5 : This invention proposes an anti-icing high-voltage transmission tower, comprising: a lower connecting seat 1, a crossarm cantilever frame 2, an upper connecting seat 3, an upper connecting frame 4, a lower connecting frame 5, a hydraulic buffer 6, long bolts 7, and nuts 8; the lower connecting seat 1 is fixedly connected to the high-voltage transmission tower 9, and the crossarm cantilever frame 2 is externally connected to the lower connecting seat 1; the upper connecting seat 3 is fixedly connected to the high-voltage transmission tower 9, and the upper connecting frame 4 is externally connected to the upper connecting seat 3, with the lower connecting frame 5 connected to the bottom of the upper connecting frame 4; a hydraulic buffer is internally connected to the upper connecting frame 4. The impactor 6 and hydraulic buffer 6 are connected to the lower connecting frame 5; the bottom of the lower connecting frame 5 is connected to the long bolt 7, and the lower connecting frame 5 is connected to the top of the crossarm cantilever frame 2 through the long bolt 7. The long bolt 7 is connected to the outside of the nut 8; the crossarm cantilever frame 2 adopts an integrated wedge-shaped gradual cantilever structure design. The cross section at the hanging point gradually slopes from wide to narrow. After the ice accumulates, the ice is automatically broken and slid off by the weight of the ice and the shear force of the wedge-shaped inclined surface, which solves the problem of easy ice accumulation at the end of the crossarm and concentrated ice load.

[0023] In this embodiment of the invention, the crossbeam cantilever 2 is rotatably connected to the lower connecting seat 1, the crossbeam cantilever 2 rotates at an angle of 0 to 5 degrees, the bottom of the lower connecting frame 5 is rotatably connected to the crossbeam cantilever 2, the lower connecting frame 5 is slidably connected to the upper connecting frame 4, and the top of the upper connecting frame 4 is rotatably connected to the upper connecting seat 3. Using the above technical solution, when the ice load exceeds the threshold, the crossarm cantilever 2 will generate a controllable micro-deflection, using structural deformation to tear the continuous ice layer, release the ice load stress, and unload the load purely through structural mechanics without any driving device, thus preventing the tower from becoming unstable due to ice overload.

[0024] In this embodiment of the invention, the bottom of the upper connecting frame 4 is provided with a lower crossbar 41, the lower connecting frame 5 is provided with sliding holes 51 on both sides, the lower crossbar 41 is slidably connected in the sliding holes 51, the upper connecting frame 4 is provided with upper sliding holes 42 on both sides, the top of the lower connecting frame 5 is provided with an upper crossbar 52, and the two ends of the upper crossbar 52 are slidably connected in the upper sliding holes 42. Using the above technical solution, the lower crossbar 41 is slidably engaged with the lower sliding hole 51, and the upper crossbar 52 is slidably engaged with the upper sliding hole 42, thus limiting the sliding range of the upper connecting frame 4 and the lower connecting frame 5.

[0025] In this embodiment of the invention, the top of the hydraulic buffer 6 is connected to the upper crossbar 52, and the bottom of the hydraulic buffer 6 is connected to the lower crossbar 41. Using the above technical solution, when the crossarm cantilever 2 deflects slightly downward, the hydraulic buffer 6 is compressed by force. After the structural deformation tears the continuous ice layer, the force on the crossarm cantilever 2 decreases. Under the influence of the hydraulic buffer 6, the crossarm cantilever 2 automatically achieves slight upward deflection and reset.

[0026] Example 2, please refer to Figures 1 to 5This invention proposes an anti-icing high-voltage transmission tower, comprising: a lower connecting seat 1, a crossarm cantilever frame 2, an upper connecting seat 3, an upper connecting frame 4, a lower connecting frame 5, a hydraulic buffer 6, long bolts 7, and nuts 8; the lower connecting seat 1 is fixedly connected to the high-voltage transmission tower 9, and the crossarm cantilever frame 2 is externally connected to the lower connecting seat 1; the upper connecting seat 3 is fixedly connected to the high-voltage transmission tower 9, and the upper connecting frame 4 is externally connected to the upper connecting seat 3, with the lower connecting frame 5 connected to the bottom of the upper connecting frame 4; a hydraulic buffer is internally connected to the upper connecting frame 4. The impactor 6 and hydraulic buffer 6 are connected to the lower connecting frame 5; the bottom of the lower connecting frame 5 is connected to the long bolt 7, and the lower connecting frame 5 is connected to the top of the crossarm cantilever frame 2 through the long bolt 7. The long bolt 7 is connected to the outside of the nut 8; the crossarm cantilever frame 2 adopts an integrated wedge-shaped gradual cantilever structure design. The cross section at the hanging point gradually slopes from wide to narrow. After the ice accumulates, the ice is automatically broken and slid off by the weight of the ice and the shear force of the wedge-shaped inclined surface, which solves the problem of easy ice accumulation at the end of the crossarm and concentrated ice load.

[0027] In this embodiment of the invention, the crossbeam cantilever 2 is rotatably connected to the lower connecting seat 1, the crossbeam cantilever 2 rotates at an angle of 0 to 5 degrees, the bottom of the lower connecting frame 5 is rotatably connected to the crossbeam cantilever 2, the lower connecting frame 5 is slidably connected to the upper connecting frame 4, and the top of the upper connecting frame 4 is rotatably connected to the upper connecting seat 3. Using the above technical solution, when the ice load exceeds the threshold, the crossarm cantilever 2 will generate a controllable micro-deflection, using structural deformation to tear the continuous ice layer, release the ice load stress, and unload the load purely through structural mechanics without any driving device, thus preventing the tower from becoming unstable due to ice overload.

[0028] In this embodiment of the invention, the bottom of the upper connecting frame 4 is provided with a lower crossbar 41, the lower connecting frame 5 is provided with sliding holes 51 on both sides, the lower crossbar 41 is slidably connected in the sliding holes 51, the upper connecting frame 4 is provided with upper sliding holes 42 on both sides, the top of the lower connecting frame 5 is provided with an upper crossbar 52, and the two ends of the upper crossbar 52 are slidably connected in the upper sliding holes 42. Using the above technical solution, the lower crossbar 41 is slidably engaged with the lower sliding hole 51, and the upper crossbar 52 is slidably engaged with the upper sliding hole 42, thus limiting the sliding range of the upper connecting frame 4 and the lower connecting frame 5.

[0029] In this embodiment of the invention, the top of the hydraulic buffer 6 is connected to the upper crossbar 52, and the bottom of the hydraulic buffer 6 is connected to the lower crossbar 41. Using the above technical solution, when the crossarm cantilever 2 deflects slightly downward, the hydraulic buffer 6 is compressed by force. After the structural deformation tears the continuous ice layer, the force on the crossarm cantilever 2 decreases. The crossarm cantilever 2 is pushed by the hydraulic buffer 6 and automatically achieves slight upward deflection and reset. The top of the crossarm cantilever 2 is provided with an inner connecting hole 21, and the bottom of the lower connecting frame 5 is provided with an outer connecting hole 53. The inner connecting hole 21 and the outer connecting hole 53 are connected. The long bolt 7 passes through the inner connecting hole 21 and the outer connecting hole 53. The nut 8 is threadedly connected to the long bolt 7 and contacts the lower connecting frame 5. Using the above technical solution, when the crossarm cantilever 2 is connected to the lower connecting frame 5, the inner connecting hole 21 and the outer connecting hole 53 are in a connected state. The long bolt 7 is inserted into the inner connecting hole 21 and the outer connecting hole 53, and the nut 8 is tightened. The crossarm cantilever 2 and the lower connecting frame 5 are connected together by the long bolt 7, making assembly more convenient.

[0030] By adopting the above technical solution, such as Figure 6 As shown, the outer wall of the high-voltage transmission tower 9 is equipped with an integrally formed spiral rib. The rotating texture of the rod can disrupt the airflow around the tower body and prevent supercooled water droplets from adhering stably and freezing on the surface of the rod. The rib also serves as a reinforcing rib to improve the bending resistance of the rod, thus achieving passive anti-icing from the perspective of fluid structure.

[0031] The working principle of this embodiment is as follows: First, the crossarm cantilever 2 is connected to the lower connecting frame 5, with the inner connecting hole 21 and the outer connecting hole 53 in a connected state. A long bolt 7 is inserted into the inner connecting hole 21 and the outer connecting hole 53, and the nut 8 is tightened. The crossarm cantilever 2 and the lower connecting frame 5 are connected together by the long bolt 7. The crossarm cantilever 2 adopts an integrated wedge-shaped gradual cantilever structure design, with the cross-section at the hanging point gradually changing from wide to narrow. After ice accumulation, the ice automatically breaks and slides off due to the weight of the ice and the shear force of the wedge-shaped inclined surface, solving the problem of the crossarm end being prone to... The problem of ice accumulation and concentrated ice load; when the ice load exceeds the threshold, the crossarm cantilever 2 generates a controllable micro-deflection, using structural deformation to tear the continuous ice layer, releasing the ice load stress, and unloading purely through structural mechanics without any driving device, preventing the tower from becoming unstable due to ice overload; when the crossarm cantilever 2 deflects slightly downward, the hydraulic buffer 6 is compressed by force. After the structural deformation tears the continuous ice layer, the force on the crossarm cantilever 2 decreases, and the crossarm cantilever 2 is pushed by the hydraulic buffer 6 to automatically achieve a slight upward deflection and reset.

[0032] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0033] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0034] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-voltage transmission tower resistant to icing, comprising: The following components are provided: a lower connecting seat (1), a crossarm cantilever frame (2), an upper connecting seat (3), an upper connecting frame (4), a lower connecting frame (5), a hydraulic buffer (6), a long bolt (7), and a nut (8); characterized in that the lower connecting seat (1) is fixedly connected to the high-voltage transmission tower (9), and the lower connecting seat (1) is externally connected to the crossarm cantilever frame (2); the upper connecting seat (3) is fixedly connected to the high-voltage transmission tower (9), and the upper connecting seat (3) is externally connected to the upper connecting frame (4), and the lower connecting frame (5) is connected to the bottom of the upper connecting frame (4); the upper connecting frame (4) is internally connected to the hydraulic buffer (6), and the hydraulic buffer (6) is connected to the lower connecting frame (5); the bottom of the lower connecting frame (5) is connected to the long bolt (7), and the lower connecting frame (5) is connected to the top of the crossarm cantilever frame (2) through the long bolt (7), and the long bolt (7) is externally connected to the nut (8).

2. The anti-icing high-voltage transmission tower according to claim 1, characterized in that, The crossbeam cantilever (2) is rotatably connected to the lower connecting seat (1), and the rotation angle of the crossbeam cantilever (2) is 0~5 degrees.

3. The anti-icing high-voltage transmission tower according to claim 1, characterized in that, The bottom of the lower connecting frame (5) is rotatably connected to the crossbeam cantilever frame (2), the lower connecting frame (5) is slidably connected to the upper connecting frame (4), and the top of the upper connecting frame (4) is rotatably connected to the upper connecting seat (3).

4. The anti-icing high-voltage transmission tower according to claim 1, characterized in that, The lower crossbar (41) is provided at the bottom of the upper connecting frame (4), and the lower connecting frame (5) has sliding holes (51) on both sides. The lower crossbar (41) is slidably connected in the sliding holes (51).

5. A high-voltage transmission tower for preventing icing according to claim 4, characterized in that, The upper connecting frame (4) is provided with upper sliding holes (42) on both sides, and the lower connecting frame (5) is provided with an upper crossbar (52) at the top. The two ends of the upper crossbar (52) are slidably connected in the upper sliding holes (42).

6. A high-voltage transmission tower for preventing icing according to claim 5, characterized in that, The top of the hydraulic buffer (6) is connected to the upper crossbar (52), and the bottom of the hydraulic buffer (6) is connected to the lower crossbar (41).

7. A high-voltage transmission tower for preventing icing according to claim 1, characterized in that, The top of the crossbeam cantilever frame (2) is provided with an inner connecting hole (21), and the bottom of the lower connecting frame (5) is provided with an outer connecting hole (53). The inner connecting hole (21) and the outer connecting hole (53) are connected. The long bolt (7) passes through the inner connecting hole (21) and the outer connecting hole (53). The nut (8) is threadedly connected to the long bolt (7) and the nut (8) is in contact with the lower connecting frame (5).

8. A high-voltage transmission tower for preventing icing according to claim 1, characterized in that, The outer wall of the high-voltage transmission tower (9) is provided with an integrally formed spiral rib.

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