Power transmission overhead line with low wind resistance

Abstract

The invention discloses a low-wind-resistance power transmission overhead line, and relates to the technical field of power overhead lines, a plurality of pressing and clamping insulation strips are clamped on the outer side of an inner wire core at equal intervals, an isolation mica tape is laid at the outer side ends of the plurality of pressing and clamping insulation strips, and a semi-conductive integration sheet is laid at the outer side end of the isolation mica tape; metal isolation strips are installed at the outer side ends of the semi-conductive integration pieces, the outer sides of the metal isolation strips are sleeved with pressure buffering hollow pipes, clamping and limiting insulation pipes are arranged on the outer sides of the inner wire cores, pressing outwards-protruding pipes are bonded to the outer side ends of the clamping and limiting insulation pipes, and dense isolation series connection frames are installed on the inner sides of the multiple clamping fixing cavities in an inserted mode. According to the invention, the regular non-circular cross section is matched with the multi-position concave structure, so that the airflow separation point lags behind, the turbulent flow is advanced, the convex strips are matched for drainage, and the impact force of the airflow on the overhead line is reduced by utilizing the multi-point turbulent flow and airflow hedging, and meanwhile, the front and back air pressure difference is reduced, so that the wind resistance borne by the overhead line is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of overhead power line technology, specifically to a low-wind-resistance overhead power transmission line. Background Technology

[0002] Overhead power transmission lines, also known as overhead cables, are a type of power transmission that falls between overhead conductors and underground cables. These cables are characterized by high power supply reliability, good power supply safety, convenient installation and maintenance, and reasonable economic efficiency. Their power supply reliability is 4-6 times higher than that of traditional bare conductors. They can operate stably in complex environments. When wind and airflow encounter a conductor with a circular cross-section, the airflow will detach from the surface of the conductor on the side and can no longer adhere to it, forming a low-pressure area filled with irregular vortices. At this time, the pressure on the windward side of the conductor is high, and the pressure difference between the front and rear increases the wind resistance of the overhead line.

[0003] However, the existing overhead lines are nearly circular on the outside, making it impossible to control the separation point between the airflow and the airflow of the overhead line. Furthermore, the location where turbulence is formed is not fixed, resulting in uneven wind pressure at multiple locations before and after the overhead line. This causes the overhead line to be affected by different airflow resistances, increasing the wind resistance experienced by the overhead line and causing irregular swaying, which accelerates the fatigue rate of the overhead line and affects its service life and stability during use. Summary of the Invention

[0004] This invention provides a low-wind-resistance overhead power transmission line, which can effectively solve the problems mentioned in the background art. The outer side of the existing overhead line is nearly circular, making it impossible to control the separation point between the airflow and the overhead line. Furthermore, the location of turbulence formation is not fixed, resulting in uneven wind pressure at multiple locations before and after the overhead line. This leads to the overhead line being affected by different airflow resistances, increasing the wind resistance experienced by the overhead line, causing irregular swaying, accelerating the fatigue rate of the overhead line, and affecting the service life and stability of the overhead line during use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low wind resistance overhead power transmission line, comprising an inner conductor core, wherein an inner resistance external repair component is provided on the side end of the inner conductor core; The internal resistance external repair assembly includes a pressure-clamp insulating strip; Several clamping insulating strips are equidistantly clamped to the outer side of the inner conductor core, and insulating mica tape is laid on the outer end of the clamping insulating strips. A semi-conductive integrated sheet is laid on the outer end of the isolation mica strip, and a metal isolation strip is installed on the outer end of the semi-conductive integrated sheet; A pressure-reducing hollow tube is sleeved on the outside of the metal isolation strip; An insulating tube is provided on the outside of the inner conductor core, and a pressed outward protrusion tube is bonded to the outer end of the insulating tube. The inner sides of the clamping insulating tube and the pressed outward convex tube are provided with several locking and fixing cavities at equal intervals, and a densely spaced series frame is inserted and installed inside the several locking and fixing cavities. Several limiting springs are equidistantly installed on the inner side of the tightly sealed series frame, and a pressure limiting plate is installed on one end of each limiting spring.

[0006] According to the above technical solution, a deformable elastic sheet is installed on the outer end of the press-fitted convex tube corresponding to the side end of the pressure-limiting treatment sheet; The inner side of the clamping insulating tube is equidistantly bonded with several heat-insulating sheets, and the inner side of the several heat-insulating sheets is equidistantly covered with several metal protective strips. There are six pressure-clamp insulating strips, and the inner diameter of the semiconductor integrated sheet is equal to the outer diameter of the insulating mica tape.

[0007] According to the above technical solution, one end of the pressure limiting sheet is attached to one end of the deformable elastic sheet, the pressure limiting sheet is installed on the side end of the airtight connecting frame, and the inner diameter of the heat insulation sheet is equal to the outer diameter of the metal protective strip.

[0008] According to the above technical solution, a plurality of semi-conductive processing sheets are equidistantly installed on the inner side of a plurality of the metal protective strips, and a middle limit insulating tube is sleeved on the inner side of a plurality of the semi-conductive processing sheets. The inner side of the middle-limit insulating tube is bonded with a clamping treatment strip, and the outer side of the pressure-reducing hollow tube and the inner side of the clamping treatment strip are both bonded with protruding card limiting frames. The clamping treatment belt has two sections, and the longitudinal sections of the pressure clamp insulating strip, the insulating mica tape, the semiconducting integrated sheet, the metal isolation strip, the heat insulation sheet, the metal protective strip, the semiconducting treated sheet, the clamping treatment belt, and the convex clamp limiting frame are all arc-shaped.

[0009] According to the above technical solution, one of the convex card limiting frames is equipped with a number of hollow spring sleeves at equal intervals on the inner side, and the other of the convex card limiting frames is equipped with a number of elastic damping rods at equal intervals on the inner side. Two adjacent convex locking brackets slide together, and the elastic damping rod is inserted and installed inside the hollow spring sleeve.

[0010] According to the above technical solution, a clamping assembly is provided on the side end of the pressed outward convex tube; The clamping assembly includes convex and concave guide strips; Several convex and concave guide strips are equidistantly bonded to the outer side of the press-fitted convex tube, and reinforcing limiting ribs are inserted and installed on the inner side of the several convex and concave guide strips. A buffer block is symmetrically pressed onto the outer side of the pressed outward protruding tube, and an arc-shaped pressing plate is installed at one end of the buffer block. A combination bolt is inserted between the two arc-shaped pressing plates, and a pressing nut is threadedly connected to the side end of the combination bolt. One end of the compression nut is welded with a clip fixing sleeve, and one end of the inner side of the clip fixing sleeve is welded with a compression spring. A compression plate is welded to one end of the compression spring; The side end of the combined bolt is fitted with a bottom support fixing frame, and the side end of the combined bolt is fitted with a pressure relief pad. The inner side of the pressure card insulating strip is provided with weight-reducing and fixing cavities at equal intervals.

[0011] According to the above technical solution, a plurality of through-processing holes are equidistantly opened on the inner side of the clamping insulating tube, and a plurality of matching fixing holes are equidistantly opened on the inner side of the clamping insulating tube. One end of the insert card fixing sleeve is attached to one end of the arc-shaped pressing plate, and the pressing plate is slidably installed inside the insert card fixing sleeve.

[0012] According to the above technical solution, an integrated reinforcing rib is bonded to the inner side of the limiting fixing hole; Several supporting and protective ribs are inserted and installed at equal intervals on the side end of the press-fitted convex tube; There are two arc-shaped pressing plates, and one end of the pressing sheet is attached to one end of the arc-shaped pressing plate.

[0013] According to the above technical solution, the insert fixing sleeve is sleeved and installed on the side end of the combination bolt, and the longitudinal section of the bottom support fixing frame is T-shaped.

[0014] According to the above technical solution, the side end of the pressure relief pad is attached to the side end of the arc-shaped pressing plate and the bottom support fixing frame. The longitudinal section of the weight reduction fixing cavity, the limiting fixing hole and the integrated reinforcing rib are all arc-shaped, and there are ten integrated reinforcing ribs.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Equipped with an internal resistance and external repair component, the airflow is diverted and processed by pressing the convex tube and the convex and concave guide strip. The direct airflow impacts and presses the deformation elastic sheet and pressure limiting sheet. The maximum deformation amplitude is limited by the limit spring. The internal pressure is balanced by the densely spaced series frame. This causes the side affected by the airflow to be concave and the side unaffected by the airflow to be convex. The edge protrusion and non-circular cross section, combined with the surface concave structure, cause some airflow to form a counter-current airflow after contact, and disturb the laminar flow near the wall, causing it to be converted into turbulent flow in advance, increasing the intensity of turbulence. The airflow self-counteracts, reducing the impact force of the airflow on the overhead line. At the same time, the separation point is further back, reducing the air pressure difference between the windward and leeward sides of the overhead line, thereby further reducing the airflow at the overhead line and reducing the wind resistance of the overhead line. The overhead line is oscillating by airflow. The convex tube and the clamping insulation tube drive the convex clamp limit frame to rotate. The hollow tube with pressure relief also drives the convex clamp limit frame to rotate. The two sets of convex clamp limit frames rotate in opposite directions. The elastic damping rod and the hollow elastic sleeve are elastically deformed to achieve small-amplitude energy absorption. Through multi-stage buffering, linkage damping energy absorption and internal and external separation and integration, the impact force of the airflow is converted into friction and heat energy to achieve energy absorption and buffering. During the small-amplitude oscillation, internal damping can reduce vibration and reduce the occurrence of periodic vibration damage to the overhead line caused by vortices in the airflow wake. Through external adjustments, airflow diversion, adaptive concave-convex adjustment, and damping buffering, the problem of uneven wind pressure and irregular oscillation caused by the inability to control the airflow separation point, coupled with the fatigue of overhead lines, is effectively solved in existing technologies. By using a regular non-circular cross-section and a multi-position concave structure, the airflow separation point is delayed and turbulence is advanced. With the help of convex strip diversion, the impact of airflow on the overhead line is reduced by using multi-point turbulence and airflow counteraction, while reducing the air pressure difference before and after. This effectively reduces the wind resistance experienced by the overhead line. At the same time, through damping energy absorption and torsional counteraction, the occurrence of irregular oscillation is reduced, the mechanical fatigue caused by the reciprocating oscillation of the overhead line is reduced, and its operational stability and service life are improved.

[0016] 2. A clamping assembly is provided, which is attached to the outside of the pressed convex tube by the convex and concave guide strip. The weight reduction fixing cavity, through treatment hole and matching fixing hole are used to reduce the overall weight of the overhead line. In conjunction with the reinforcing limit ribs and integrated reinforcing ribs, the clamping insulation tube is reinforced on the inside and the external insulation is double-protected to ensure that the overall deformation can be reduced when affected by wind. At the same time, the overall straightening support is restricted to improve the overall support stability. By inserting a combination bolt between the arc-shaped pressing plate, the bottom support fixing frame, and the pressure-relieving pad, and using the pressing nut to fit the insert fixing sleeve and pressing plate into the combination bolt, the two sets of arc-shaped pressing plates and the bottom support fixing frame are clamped and limited using threaded combination pressing and spring counter-pressing treatment. The pressure-relieving pad and the buffer block provide elastic protection for the contact port of the overhead line. Through the two sets of pressing positioning and side end protection treatment, the edge of the overhead line is reduced from detachment due to loose connection. At the same time, the contact damping limitation reduces the swing amplitude of the overhead line, thereby reducing the amplitude and number of bending and twisting, and improving its stability in use.

[0017] In summary, by combining internal resistance and external repair components with clamping components, and utilizing hollow chambers and perforated structures, the overall weight is reduced. This is further enhanced by external support reinforcement, concave-convex deformation, and regular non-circular structures. In addition, contact damping and compression fixing reduce wind resistance at the edges of the overhead line. Furthermore, the internal self-damping energy absorption buffering process controls the sway amplitude of the overhead line, reduces its bending amplitude, and extends its service life. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal resistance external repair component of the present invention; Figure 3 This is a schematic diagram of the installation structure of the pressure-clamp insulating strip of the present invention; Figure 4 This is a schematic diagram of the installation structure of the clamping treatment strip of the present invention; Figure 5 This is a schematic diagram of the installation structure of the airtight series frame of the present invention; Figure 6 This is a schematic diagram of the installation structure of the isolation mica tape of the present invention; Figure 7 This is a schematic diagram of the installation structure of the hollow spring sleeve of the present invention; Figure 8 This is a schematic diagram of the clamping assembly of the present invention; Figure 9 This is a schematic diagram of the installation structure of the buffer processing block of the present invention; Figure 10 This is a schematic diagram of the installation structure of the reinforcing limiting rib of the present invention; Labels in the diagram: 1. Inner conductor core; 2. Internal resistance external repair assembly; 201. Press-fit insulating strip; 202. Isolating mica tape; 203. Semiconductor integrated sheet; 204. Metal isolation strip; 205. Soft-press hollow tube; 206. Clamping insulating tube; 207. Press-fit convex tube; 208. Clamping fixing cavity; 209. Sealing series frame; 210. Limiting spring; 211. Pressure limiting treatment sheet; 212. Deformation elastic sheet; 213. Heat insulation treatment sheet; 214. Metal protective strip; 215. Semiconductor treatment sheet; 216. Middle limit insulating tube; 217. Clamping treatment tape; 218. Convex clamping limit frame; 219. Hollow spring compression sleeve; 220. Elastic damping rod; 3. Clamping components; 301. Outwardly convex and inwardly concave guide strip; 302. Reinforcing limiting rib; 303. Buffer block; 304. Arc-shaped pressing plate; 305. Combination bolt; 306. Pressing nut; 307. Insert card fixing sleeve; 308. Pressing spring; 309. Pressing sheet; 310. Base support fixing frame; 311. Pressure relief pad; 312. Weight reduction fixing cavity; 313. Through-hole; 314. Limiting fixing hole; 315. Integrated reinforcing rib; 316. Support and protection rib. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figure 1-10 As shown, the present invention provides a technical solution, a low wind resistance overhead power transmission line, including an inner conductor core 1, and an inner resistance external repair component 2 is provided on the side end of the inner conductor core 1. The internal resistance external repair component 2 includes a clamping insulating strip 201, an insulating mica tape 202, a semi-conductive integrated sheet 203, a metal insulating strip 204, a pressure-relieving hollow tube 205, a clamping insulating tube 206, a clamping convex tube 207, a clamping fixing cavity 208, a dense isolation series frame 209, a limiting spring 210, a pressure-limiting treatment sheet 211, a deformation elastic sheet 212, a heat-insulating treatment sheet 213, a metal protective strip 214, a semi-conductive treatment sheet 215, a middle-limit insulating tube 216, a clamping treatment strip 217, a convex clamping limiting frame 218, a hollow spring sleeve 219, and an elastic damping rod 220; Several clamping insulating strips 201 are equidistantly clamped to the outer side of the inner conductor core 1. There are six clamping insulating strips 201 to achieve alignment and clamping restriction and bonding insulation treatment. The outer ends of the clamping insulating strips 201 are covered with insulating mica tape 202. A semi-conductive integrated sheet 203 is laid on the outer end of the insulating mica tape 202. The inner diameter of the semi-conductive integrated sheet 203 is equal to the outer diameter of the insulating mica tape 202 to ensure the stability of insulation protection and internal isolation limitation. A metal isolation strip 204 is installed on the outer end of the semi-conductive integrated sheet 203. A pressure-reducing hollow tube 205 is sleeved on the outside of the metal isolation strip 204; An insulating tube 206 is provided on the outer side of the inner conductor core 1, and a press-fitted protruding tube 207 is bonded to the outer end of the insulating tube 206. The inner sides of the clamping insulating tube 206 and the pressed outward protruding tube 207 are provided with a number of locking and fixing cavities 208 at equal intervals, and a densely spaced series frame 209 is inserted and installed inside the number of locking and fixing cavities 208. Several limiting springs 210 are installed at equal intervals on the inner side of the sealed series frame 209, and a pressure limiting plate 211 is installed at one end of each limiting spring 210; A deformable elastic sheet 212 is installed on the outer end of the press-fitted convex tube 207 corresponding to the side end of the pressure limiting sheet 211; Several heat-insulating sheets 213 are equidistantly bonded to the inner side of the clamping insulating tube 206. Several metal protective strips 214 are equidistantly laid on the inner side of the heat-insulating sheets 213. One end of the pressure-limiting sheet 211 is attached to one end of the deformable elastic sheet 212. The pressure-limiting sheet 211 is installed on the side of the densely spaced series frame 209. The inner diameter of the heat-insulating sheet 213 is equal to the outer diameter of the metal protective strip 214, so as to realize multi-segment pressing alignment and bonding restriction treatment, and ensure the stability of internal compaction restriction and torsional fit. Several metal protective strips 214 are equidistantly installed with several semi-conductive treatment pieces 215 on their inner sides, and a middle limit insulating tube 216 is sleeved on the inner side of several semi-conductive treatment pieces 215. The inner side of the middle-limit insulating tube 216 is bonded with a clamping treatment tape 217. There are two clamping treatment tapes 217 to achieve clamping restriction and alignment pressing treatment. The outer side of the slow-pressing hollow tube 205 and the inner side of the clamping treatment tape 217 are both bonded with a convex clamp limiting frame 218. The longitudinal section of the clamping insulating strip 201, the insulating mica tape 202, the semi-conductive integrated sheet 203, the metal isolation strip 204, the heat insulation sheet 213, the metal protective strip 214, the semi-conductive sheet 215, the clamping treatment tape 217 and the convex clamp limiting frame 218 are all arc-shaped to ensure the stability of the pressing and limiting combination. One of the convex locking brackets 218 has several hollow spring sleeves 219 installed at equal intervals on its inner side, and another convex locking bracket 218 has several elastic damping rods 220 installed at equal intervals on its inner side. The two adjacent convex locking brackets 218 slide and fit together, and the elastic damping rods 220 are inserted and installed inside the hollow spring sleeves 219 to achieve internal fitting restriction and self-damping limiting buffer treatment.

[0022] A clamping component 3 is provided on the side end of the press-fitted convex tube 207; The clamping assembly 3 includes a convex and concave guide strip 301, a reinforcing limiting rib 302, a buffer block 303, an arc-shaped pressing plate 304, a combination bolt 305, a pressing nut 306, a plug-in fixing sleeve 307, a pressing spring 308, a pressing sheet 309, a bottom support fixing frame 310, a pressure relief pad 311, a weight reduction fixing cavity 312, a through hole 313, a limiting fixing hole 314, an integrated reinforcing rib 315, and a support and protection rib 316; Several convex and concave guide strips 301 are equidistantly bonded to the outer side of the press-fitted convex tube 207, and reinforcing limiting ribs 302 are inserted and installed inside the several convex and concave guide strips 301. A buffer block 303 is symmetrically pressed onto the outer side of the pressed outward protruding tube 207, and an arc-shaped pressing plate 304 is installed at one end of the buffer block 303. A combination bolt 305 is inserted between two arc-shaped pressing plates 304, and a pressing nut 306 is threadedly connected to the side end of the combination bolt 305. A retaining sleeve 307 is welded to one end of the compression nut 306. The retaining sleeve 307 is sleeved and installed on the side of the combination bolt 305 to achieve sliding guidance. One end of the retaining sleeve 307 is in contact with one end of the arc-shaped compression plate 304. The compression piece 309 is slidably installed on the inner side of the retaining sleeve 307. There are two arc-shaped compression plates 304. One end of the compression piece 309 is in contact with one end of the arc-shaped compression plate 304 to achieve multi-segment arc-shaped contact and compression treatment, ensuring the stability of the overall support and buffer alignment. A compression spring 308 is welded to one end of the inner side of the retaining sleeve 307. A compression plate 309 is welded to one end of the compression spring 308; The side end of the combination bolt 305 is fitted with a bottom support fixing frame 310. The longitudinal section of the bottom support fixing frame 310 is T-shaped to ensure stable support and restriction. The side end of the combination bolt 305 is fitted with a pressure relief pad 311. The inner side of the pressure-clamp insulating strip 201 is provided with weight-reducing and fixing cavities 312 at equal intervals; A number of through-holes 313 are equidistantly opened on the inner side of the clamping insulating tube 206, and a number of matching fixing holes 314 are equidistantly opened on the inner side of the clamping insulating tube 206. An integrated reinforcing rib 315 is bonded to the inner side of the limiting fixing hole 314. The side end of the pressure relief pad 311 is attached to the side end of the arc-shaped pressing plate 304 and the bottom support fixing frame 310. The longitudinal sections of the weight reduction fixing cavity 312, the limiting fixing hole 314 and the integrated reinforcing rib 315 are all arc-shaped, realizing multi-segment buffering treatment and ensuring the overall limiting stability. There are ten integrated reinforcing ribs 315, which improves the stability of the support buffer. Several supporting and protective ribs 316 are inserted at equal intervals on the side end of the pressed outward protruding tube 207.

[0023] The working principle and usage process of this invention: The overhead line is pulled to the required overhead height by external handling equipment and traction equipment. During cable laying, the workers attach the convex and concave guide strip 301 to the outer end of the pressed convex tube 207 to reinforce the outer corner of the pressed convex tube 207 for protection. The reinforcing limit rib 302 reinforces the convex and concave guide strip 301 to achieve stable support and restriction. This can effectively reduce the wear rate of the edge of the pressed convex tube 207 during long-term use and ensure its service life. Two arc-shaped pressing plates 304 are placed on the side end of the pressing outward protruding tube 207, so that the buffer block 303 is attached to the side end of the pressing outward protruding tube 207. After attachment, the bottom support fixing bracket 310 is placed between the two arc-shaped pressing plates 304, and then the pressure-relieving pad 311 is placed between the two arc-shaped pressing plates 304 and the bottom support fixing bracket 310 and the arc-shaped pressing plates 304 to fill the pressure-relieving pad 311. After filling, the combination bolt 305 is inserted. Insert the curved pressing plate 304, the bottom support fixing frame 310 and the pressure relief pad 311 between them. Then, use the pressing nut 306 to put the insert fixing sleeve 307 and the pressing plate 309 onto the side of the combination bolt 305. Rotate the pressing nut 306 so that one end of the pressing plate 309 fits against one end of the curved pressing plate 304 and is embedded into the inside of the insert fixing sleeve 307, so as to achieve mutual pressing and fixing between the curved pressing plate 304, the pressure relief pad 311 and the bottom support fixing frame 310. Next, the bottom support bracket 310 is fixed to the overhead line fixing facility, and the overhead line is fixed to the connecting parts on the fixing facility. By segmented connection, the stability of the fixing at the relay and interface positions is enhanced. During the fixing of the overhead line, the compression spring 308 pushes the compression plate 309 and the plug-in fixing sleeve 307 to move bidirectionally. The side end of the compression plate 309, the side end of the arc-shaped compression plate 304, and the side end of the compression nut 306 are used to achieve bidirectional compression fixing, reducing the impact on the stability of clamping limit and fixing protection caused by loose connection at the edge of the overhead line. After the overhead line is laid, power is transmitted through the inner conductor core 1. During the use of the overhead line, the weight of the entire overhead line is reduced by the weight reduction fixing cavity 312, the through treatment hole 313 and the limiting fixing hole 314. The inner side of the clamping insulation tube 206 is reinforced by the integrated reinforcing rib 315, and the outer side of the pressed outward protruding tube 207 is reinforced by the supporting protective rib 316. Through the external insulation double protection reinforcement treatment, it is ensured that the overall deformation can be reduced when affected by wind. At the same time, the overall straightening support is limited to improve the stability of the overall use. When the operation of the overhead line is affected by wind, and when there is a light breeze in the environment, the wind blows directly onto the convex tube 207. When the airflow comes into contact with the convex and concave guide strip 301 at the protruding end of the convex tube 207, the airflow is diverted by the convex and concave guide strip 301. Part of the airflow flows along the convex and concave guide strip 301 to the flat surface of the convex tube 207, while the remaining airflow forms a backflow under the obstruction of the convex and concave guide strip 301. The backflow airflow comes into contact with the airflow that flows to the position of the convex and concave guide strip 301. The two airflows collide to slow down the airflow speed, thereby reducing the airflow speed and impact force to the side of the convex and concave guide strip 301. The impact force of the airflow causes the overhead line to sway slightly. At this time, the pressing outer convex tube 207 drives the clamping insulating tube 206 and the heat insulation sheet 213 to produce a small-amplitude torsional deformation. In conjunction with the internal middle limiting insulating tube 216 and the clamping treatment strip 217 for fixation, multiple sets of convex card limiting frames 218 are limited. At this time, the internal inner conductor core 1 drives the pressing insulating strip 201 and the slow-pressing hollow tube 205 to produce a small-amplitude swing. The slow-pressing hollow tube 205 pushes the convex card limiting frame 218 to rotate. The two sets of convex card limiting frames 218 are rotated in opposite directions, so that the elastic damping rod 220 and the hollow spring sleeve 219 are pressed and inserted and elastically deformed, realizing the internal small-amplitude energy absorption treatment. In conjunction with the elastic damping rod 220 and the hollow spring sleeve 219 to elastically reset themselves, the elastic buffer treatment is realized. Through multi-segment buffering cooperation, linkage damping energy absorption and internal and external separation integration treatment, the residual wind impact force is converted into friction force and heat energy, realizing energy absorption buffer treatment. When strong winds occur in the environment, they cause the overhead power line to sway significantly. At this time, the strong wind blows directly onto the convex tube 207, first contacting the convex-concave guide strip 301 at the protruding end of the convex tube 207. The airflow is diverted by the guide strip 301; some airflow flows along the guide strip 301 towards the flat surface of the convex tube 207, while the remaining airflow forms a backflow due to the obstruction of the guide strip 301. Part of this backflow causes the overhead power line to sway, and the airflow along the convex tube 207 affects the deformable elastic sheet. When the air is blown directly at 212, the deformable elastic plate 212 pushes the pressure limiting plate 211 into the sealed transmission frame 209. At this time, the pressure limiting plate 211 presses the limiting spring 210. The air in the sealed transmission frame 209 is compressed. The pressure limiting plate 211 and the deformable elastic plate 212 at the end away from the airflow are bulged under the action of increased airflow pressure. At this time, the limiting spring 210 is stretched. At this time, the end affected by the airflow is pressed down, and the end not affected by the airflow is bulged up. When the airflow comes into contact with the arc-shaped concave deformable elastic plate 212, the airflow is split again, and part of the airflow is reversed. Multiple sets of small grooves and convex and concave guide strips 301 are used to guide the airflow backflow. The guide strips make the airflow change from laminar flow to turbulent flow at a lower wind speed, pushing the separation point to the rear edge, effectively reducing the low-pressure wake area and reducing pressure difference resistance. The multiple groove structures disturb the laminar flow near the wall, prompting the airflow to change to turbulent flow in advance, thereby controlling the air pressure difference on both sides of the overhead line, reducing the wind resistance of the overhead line, and improving the stability of the overhead line. The swinging overhead line drives multiple sets of convex card limit frames 218 to move simultaneously. At this time, due to the separation of the inner and outer double layers, the hollow spring sleeve 219 and elastic damping rod 220 are used to damp and absorb energy at both ends. Through internal torsional energy absorption treatment, the swing intensity of the overhead line is further reduced. The internal conductor core 1 is insulated and isolated by the pressure clamp insulation strip 201, and internal isolation and pressing treatment is carried out in conjunction with the isolation mica tape 202. Electromagnetic shielding and external guidance treatment are carried out by the internal semi-conductive integrated sheet 203 and metal isolation strip 204, and the pressing and buffering treatment is carried out in conjunction with the pressure-reducing hollow tube 205. This allows for effective buffering and support when the internal bending and folding occurs, increasing the space for bending guidance. Secondary isolation and protection are carried out in conjunction with the external heat insulation sheet 213, metal protective strip 214 and semi-conductive sheet 215, thereby improving the stability of the overhead line operation.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-wind-resistance overhead power transmission line, comprising an inner conductor core (1), characterized in that: The inner conductor core (1) is provided with an internal resistance external repair component (2) at its side end. The internal resistance external repair assembly (2) includes a pressure-clamp insulating strip (201); The inner conductor core (1) is equidistantly clamped with several clamping insulating strips (201) on its outer side, and the outer ends of the clamping insulating strips (201) are covered with insulating mica tape (202). A semiconductor integrated sheet (203) is laid on the outer end of the isolation mica strip (202), and a metal isolation strip (204) is installed on the outer end of the semiconductor integrated sheet (203). A pressure-reducing hollow tube (205) is sleeved on the outside of the metal isolation strip (204); The inner conductor core (1) is provided with a clamping insulating tube (206) on the outside, and a press-fitted convex tube (207) is bonded to the outer end of the clamping insulating tube (206). The clamping insulating tube (206) and the press-fitted convex tube (207) have several locking and fixing cavities (208) equidistantly opened on the inner side, and a densely spaced series frame (209) is inserted and installed inside the several locking and fixing cavities (208). A plurality of limiting springs (210) are equidistantly installed on the inner side of the closely spaced series frame (209), and a pressure limiting plate (211) is installed on one end of each of the limiting springs (210).

2. A low windage power transmission overhead line according to claim 1, wherein, A deformable elastic sheet (212) is installed on the outer end of the press-fitted convex tube (207) corresponding to the side end of the pressure limiting treatment sheet (211). The inner side of the clamping insulating tube (206) is bonded with a number of heat-insulating sheets (213) at equal intervals, and the inner side of the number of heat-insulating sheets (213) is covered with a number of metal protective strips (214) at equal intervals. There are six pressure-clamp insulating strips (201), and the inner diameter of the semiconductor integrated sheet (203) is equal to the outer diameter of the insulating mica tape (202).

3. A low windage power transmission overhead line according to claim 2, wherein, One end of the pressure limiting sheet (211) is attached to one end of the deformable elastic sheet (212). The pressure limiting sheet (211) is installed on the side of the airtight connecting frame (209). The inner diameter of the heat insulation sheet (213) is equal to the outer diameter of the metal protective strip (214).

4. A low windage power transmission overhead line according to claim 2, wherein, A plurality of semiconductive treatment plates (215) are equidistantly installed on the inner side of a plurality of the metal protective strips (214), and a middle limit insulating tube (216) is sleeved on the inner side of a plurality of the semiconductive treatment plates (215). The inner side of the middle-limit insulating tube (216) is bonded with a clamping treatment strip (217), and the outer side of the pressure-reducing hollow tube (205) and the inner side of the clamping treatment strip (217) are both bonded with a protruding card limiting frame (218). There are two clamping treatment strips (217), and the longitudinal sections of the clamping insulating strip (201), the insulating mica strip (202), the semiconducting integrated sheet (203), the metal isolation strip (204), the heat insulation sheet (213), the metal protective strip (214), the semiconducting treatment sheet (215), the clamping treatment strip (217), and the convex clamp limiting frame (218) are all arc-shaped.

5. A low windage power transmission overhead line according to claim 4, wherein, One of the convex card limiting frames (218) has several hollow spring sleeves (219) installed at equal intervals on its inner side, and the other convex card limiting frame (218) has several elastic damping rods (220) installed at equal intervals on its inner side. Two adjacent convex retaining brackets (218) slide together, and the elastic damping rod (220) is inserted and installed inside the hollow spring sleeve (219).

6. A low windage power transmission overhead line according to claim 5, wherein, The side end of the press-fitted convex tube (207) is provided with a clamping component (3); The clamping assembly (3) includes a convex and concave guide strip (301); The outer side of the press-fitted convex tube (207) is equidistantly bonded with a number of convex and concave guide strips (301), and reinforcing limiting ribs (302) are inserted and installed on the inner side of the number of convex and concave guide strips (301). The outer side of the press-fitted convex tube (207) is symmetrically press-fitted with a buffer treatment block (303), and an arc-shaped pressing plate (304) is installed at one end of the buffer treatment block (303). A combination bolt (305) is inserted between the two arc-shaped pressing plates (304), and a pressing nut (306) is threadedly connected to the side end of the combination bolt (305). One end of the compression nut (306) is welded with a clip fixing sleeve (307), and one end of the inner side of the clip fixing sleeve (307) is welded with a compression spring (308). A compression sheet (309) is welded to one end of the compression spring (308); The side end of the combined bolt (305) is fitted with a bottom support fixing bracket (310), and the side end of the combined bolt (305) is fitted with a pressure relief pad (311). The inner side of the pressure-clamp insulating strip (201) is provided with weight-reducing fixing cavities (312) at equal intervals.

7. A low-aerodynamic-drag power transmission overhead line according to claim 6, characterized in that, The clamping insulating tube (206) has several through-processing holes (313) equidistantly opened on its inner side, and the clamping insulating tube (206) has several matching fixing holes (314) equidistantly opened on its inner side. One end of the insert card fixing sleeve (307) is attached to one end of the arc-shaped pressing plate (304), and the pressing piece (309) is slidably installed on the inside of the insert card fixing sleeve (307).

8. A low windage power transmission overhead line according to claim 7, wherein, An integrated reinforcing rib (315) is bonded to the inner side of the limiting fixing hole (314); Several supporting protective ribs (316) are inserted at equal intervals on the side end of the press-fitted protruding tube (207). There are two arc-shaped pressing plates (304), and one end of the pressing sheet (309) is attached to one end of the arc-shaped pressing plate (304).

9. A low windage power transmission overhead line according to claim 7, wherein, The insert fixing sleeve (307) is sleeved and installed on the side end of the combination bolt (305), and the longitudinal section of the bottom support fixing frame (310) is T-shaped.

10. A low windage power transmission overhead line according to claim 8, wherein, The side end of the pressure relief pad (311) is attached to the side end of the arc-shaped pressing plate (304) and the bottom support fixing frame (310). The longitudinal section of the weight reduction fixing cavity (312), the limiting fixing hole (314) and the integrated reinforcing rib (315) are all arc-shaped. There are ten integrated reinforcing ribs (315).

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