A power grid infrastructure power transmission line stringing device and method

Abstract

The application discloses a power transmission line connecting device and method for power grid infrastructure, and relates to the technical field of power transmission cable suspension equipment. The power transmission line connecting device and method for power grid infrastructure comprises a clamp for fixing a power transmission cable body, a supporting rod one fixed on the clamp and supporting the power transmission cable body, a supporting shaft movably arranged in the supporting rod one, and a supporting rod two mounted on the supporting shaft. An adjusting assembly for changing the tension degree of the power transmission cable body is arranged on the supporting rod two. The adjusting assembly comprises a cylinder one fixed on the supporting rod two and used for changing the tension degree of the power transmission cable body. The power transmission cable body between the power transmission tower provided with the adjusting assembly and the adjacent power transmission towers on the left and right sides can always keep in a tension state, and will not be loose or too tight. The power transmission cable body does not need to be repeatedly bent, the probability of metal fatigue of the power transmission cable body is reduced, the service life is prolonged, and the power transmission efficiency is ensured.

Description

Technical Field

[0001] This invention relates to the field of power transmission cable suspension equipment, specifically to a power transmission cable connection device and method for power grid infrastructure construction. Background Technology

[0002] Power grid infrastructure projects refer to power grid construction projects that, according to certain project rules and procedures and with a certain amount of investment, aim to complete new construction or expansion to increase power transmission and distribution capacity. Overhead transmission lines, as the backbone structure of the power grid, have even higher requirements in power grid infrastructure. For overhead transmission lines in power grid infrastructure, steel wires are typically used to fix the transmission cables, which are suspended on porcelain insulators, to the transmission towers. These transmission cables are usually high up and mostly located in suburban areas, making them highly susceptible to environmental influences and prone to expansion and contraction, especially in regions with large seasonal temperature differences. Adjusting the tension of transmission cables after installation usually requires specialized tools such as tension regulators and necessitates travel to the equipment location, which is inconvenient. Some methods adjust tension by bending the transmission cables, but repeated folding can exacerbate cable fatigue and shorten their lifespan.

[0003] For example, the power transmission line bonding device for power grid infrastructure disclosed in announcement number CN113937702B uses bonding rollers to bend the power transmission cable within a small range. After repeated tensioning and loosening adjustments, the bending points of the power transmission cable are prone to metal fatigue, which shortens the service life.

[0004] Therefore, a wiring device and method for power transmission lines used in power grid infrastructure are proposed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a wiring device and method for power transmission lines used in power grid infrastructure. This solves the problems of the inconvenience of adjusting tension by using specialized tools such as tension regulators and having to go to the location of the equipment, as well as the problem of adjusting tension by bending the transmission cable, which can easily exacerbate fatigue of the transmission cable itself and shorten its service life after repeated folding.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a power transmission line bonding device for power grid infrastructure, comprising a clamp for fixing the transmission cable body, a first support rod fixed to the clamp and supporting the transmission cable body, a support shaft movably inserted within the first support rod, and a second support rod mounted on the support shaft; further comprising an adjustment component for changing the tension of the transmission cable body, an ice-breaking component to assist the operation of the adjustment component, and a control component for controlling the operation of the adjustment component; the adjustment component includes:

[0007] Cylinder 1 is fixed on support rod 2 to change the tension of the power transmission cable body. A steel wire rope is connected to the output end of cylinder 1. A fixing plate is fixed to one end of the steel wire rope. The bottom of the fixing plate is fixed to the top of support rod 1. The fixing plate is fixed to the support shaft by a baffle.

[0008] The ice-breaking assembly includes a guide block fixed to the side wall of the baffle for guiding.

[0009] Preferably, an extension plate is fixed to the side wall of the baffle, a pressure plate abuts against the side wall of the extension plate, a sliding rod is fixed to the side wall of the pressure plate, a piston is fixed to one end of the sliding rod, a sealed chamber abuts against the outside of the piston, one end of the sealed chamber is fixed to the second support rod, and the sealed chamber and the piston are sealed together, so that the piston can slide in the sealed chamber and drive the sliding rod to move synchronously, so that the sliding rod can drive the pressure plate to move toward the side where the extension plate is located or to the side away from the extension plate.

[0010] Preferably, the bottom of the second support rod is fixed with a second cylinder for driving the piston to move. The piston is used to drive the sliding rod to move so that the pressure plate and the expansion plate are pressed together or released. The baffle, the expansion plate and the pressure plate cooperate with each other to fix the position of the first support rod.

[0011] Preferably, the sealed chamber is connected to an air supply pipe, one end of which is connected to an air collection box. The side wall of the air collection box is fixed to the second support rod, and a movable plug fixed to the output end of the second cylinder is slidably installed inside the air collection box.

[0012] By controlling the contact or separation between the pressure plate driven by cylinder two and the extension plate and baffle, the support rod one can be kept in the adjusted position, ensuring that the position and angle of the support rod reach the expected set value, thereby precisely controlling the tension of the power transmission cable, ensuring that the power transmission cable is always in the optimal tension state, and improving the stability of the power transmission line.

[0013] Preferably, a spring is fixed inside the guide block, and a sliding plate is fixed to one end of the spring to provide elastic force to the sliding plate. An ice-breaking cone is fixed on the side wall of the sliding plate, and a slider is abutted against the side wall of the ice-breaking cone. A pressure plate is fixed to one end of the slider. When the ice-breaking cone is not in contact with the slider, the spring provides elastic force to the side of the extension plate, so that the ice-breaking cone passes through the hole opened on the extension plate and hits the side of the pressure plate near the extension plate, breaking the thin ice that has frozen on the surface of the pressure plate.

[0014] Preferably, the control component includes an adjusting rod fixed to the power transmission cable body, a toothed plate fixed to one end of the adjusting rod, a toothed ring meshing on the toothed plate, a movable shaft fixed to one end of the toothed ring, and the movable shaft fixed to the side wall of the support rod by a mounting plate, so that the toothed plate can drive the toothed ring to rotate the movable shaft.

[0015] Preferably, a magnetic ring is fixed on the side wall of the toothed ring, and a magnet is magnetically attracted to the side wall of the magnetic ring. One end of the magnet is fixed to one end of the mounting plate to fix the position of the toothed ring, so that the magnet can be magnetically attracted to the magnetic ring, preventing the toothed plate from being blown by strong winds and driving the toothed ring to rotate.

[0016] Preferably, a pressing plate is fixed to the end of the movable shaft away from the gear ring, a support block is slidably passed through one end of the pressing plate, one end of the support block is fixed to the side wall of the support rod, and pressure strain gauges are fixed inside the support block, which are arranged symmetrically at the top and bottom, respectively.

[0017] The present invention also provides a method for using a power transmission line connection device for power grid infrastructure, comprising the following steps:

[0018] S1. Install the power transmission cable body, clamps, support rod one, support shaft, support rod two, adjustment assembly, ice-breaking assembly and control assembly on the power transmission tower, wherein the adjustment assembly, ice-breaking assembly and control assembly are installed at intervals;

[0019] S2. The tension of the power transmission cable body is monitored and responded to by the adjustment component, so that the adjustment component can be activated when the tension of the power transmission cable body changes;

[0020] S3. When the tension of the power transmission cable body changes, the tension of the power transmission cable body is adjusted by changing the height of the clamp using the adjustment component.

[0021] S4. The ice-breaking component breaks the ice layer attached to the surface of the baffle, extension plate, and pressure plate in the regulating component during winter.

[0022] Preferably, the height of the clamp varies within the range of 0-50cm.

[0023] This invention provides a wiring device and method for power transmission lines used in power grid infrastructure. Compared with the prior art, it has the following advantages:

[0024] (1) The power grid infrastructure transmission line connection device and method, when building new and renovating transmission lines, the transmission tower is built to support the transmission cable, and the transmission cable is fixed by clamps to prevent the transmission cable from getting close to each other due to strong winds in the air, which would increase power loss, reduce transmission efficiency or cause air breakdown, resulting in arc discharge, and thus cause short circuit or local overheating.

[0025] (2) The transmission line connection device and method for power grid infrastructure construction, when the size of the transmission cable changes due to mechanical stress and environmental factors, the position of the clamp is changed by controlling the clamp, so that the clamp drives the transmission cable body to move up or down, thereby changing the installation height of the transmission cable body at the transmission tower with the adjustment component installed. This ensures that the transmission cable body between the transmission tower with the adjustment component installed and the adjacent transmission towers on the left and right sides can always maintain a taut state, without slack or excessive tightness, thus avoiding the sag of the transmission cable body and the safe distance to the ground being affected; it compensates for the thermal expansion and contraction effect of the transmission cable body at different temperatures, ensuring the performance stability of the transmission cable body under different environmental conditions, and ensuring that the distance of the transmission cable body to the ground meets safety standards. At the same time, it can extend the service life of the conductor, reduce the frequency of replacement and maintenance, reduce operating costs, eliminate the need to repeatedly bend the transmission cable body, reduce the probability of metal fatigue of the transmission cable body, and extend the service life while ensuring power transmission efficiency.

[0026] (3) The power transmission line connection device and method for power grid infrastructure, when the power transmission cable changes size due to mechanical stress and environmental factors and enters the adjustment mode, the contact or separation between the pressure plate and the extension plate and the baffle of the second cylinder is controlled to ensure that the support rod can be kept in the adjusted position, and to ensure that the position and angle of the support rod reach the expected set value, thereby accurately controlling the tension of the power transmission cable, ensuring that the power transmission cable is always in the best tension state, and improving the stability of the power transmission line.

[0027] (4) The power grid infrastructure transmission line connection device and method, by setting guide blocks, springs, sliding plates, ice-breaking cones and sliders, after the pressure plate and the expansion plate and the baffle are separated, and the position of the cylinder is adjusted by a pair of support rods and clamps, can hit the surface of the pressure plate by ice-breaking cones, so that the ice layer attached to the surface of the pressure plate at high altitude in winter can be effectively broken, and the surface of the pressure plate, expansion plate and baffle is prevented from freezing due to low winter temperature, which would lead to a decrease in friction between the pressure plate and the expansion plate and the baffle.

[0028] (5) The power transmission line bonding device and method for power grid infrastructure, by setting up an adjusting rod, toothed plate, toothed ring, movable shaft, mounting plate, magnetic ring, magnet, extrusion plate, support block and pressure strain gauge, drives and controls cylinder one and cylinder two to enter the adjustment mode according to the current state of the power transmission cable body. The position of the support rod can be adjusted in real time, and the dynamic response can be made according to environmental changes to ensure that the power transmission cable is always in the best tension state, which improves the accuracy and efficiency of operation and provides a foundation for realizing the overall intelligent management of power transmission lines.

[0029] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is another perspective view of the overall structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the overall structure of the adjustment component of the present invention;

[0033] Figure 4 This is a schematic diagram showing the position of cylinder one of the present invention;

[0034] Figure 5 This is a partial cross-sectional view of the support rod 2 of the present invention;

[0035] Figure 6 This is a schematic diagram of the combined state of the pressure plate of the present invention;

[0036] Figure 7 This is a schematic diagram showing the disassembled state of the pressure plate of the present invention;

[0037] Figure 8 This is another perspective view of the disassembled state of the pressure plate of the present invention;

[0038] Figure 9 This is a schematic diagram showing the disassembled state of the spring of the present invention;

[0039] Figure 10 This is a schematic diagram showing the disassembled state of the toothed plate of the present invention;

[0040] Figure 11 This is a schematic diagram showing the disassembled state of the toothed ring of the present invention;

[0041] Figure 12 This is a cross-sectional view of the support block of the present invention.

[0042] In the diagram: 1. Power transmission cable body; 11. Clamp; 12. Support rod one; 13. Support shaft; 14. Support rod two; 2. Cylinder one; 21. Steel wire rope; 22. Guide plate; 23. Fixing plate; 24. Baffle; 25. Expansion plate; 26. Pressure plate; 27. Sliding rod; 28. Piston; 29. ​​Sealed chamber; 210. Gas pipe; 211. Gas collection box; 212. Cylinder two; 3. Guide block; 31. Spring; 32. Sliding plate; 33. Icebreaker cone; 34. Slider; 4. Adjusting rod; 41. Toothed plate; 42. Toothed ring; 43. Movable shaft; 431. Mounting plate; 44. Magnetic ring; 45. Magnet; 46. Extrusion plate; 47. Support block; 471. Pressure strain gauge. Detailed Implementation

[0043] 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 embodiments of the present invention, and not all embodiments. Based on the 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.

[0044] Please see Figures 1 to 12 The present invention provides the following technical solutions:

[0045] Example 1: A power transmission line connection device for power grid infrastructure includes a clamp 11 for fixing the power transmission cable body 1 and a support rod 12 fixedly installed on the clamp 11 to support the power transmission cable body 1. A support shaft 13 is movably installed within support rod 12 and support rod 2 14. Support shaft 13 is movably connected to support rod 12 via bearings, and support shaft 13 is fixedly connected to support rod 2 14. Support rod 2 14 is equipped with an adjustment component for changing the tension of the power transmission cable body 1. The adjustment component includes: cylinder 1 2, wire rope 21, guide plate 22, fixing plate 23, and baffle 24. The side wall of cylinder 1 2 is fixed to support rod 2 14 to change the tension of the power transmission cable body 1. A wire rope 21 is fixedly connected to the output end of cylinder 1 2. A guide plate 22 slides through the wire rope 21. One end of the guide plate 22 is fixedly installed on support rod 2 14, and a fixing plate 23 is fixedly installed at one end of the wire rope 21. The bottom of the fixing plate 23 is fixedly installed at the top of support rod 12. A baffle 24 is fixedly installed at both ends of the fixing plate 23, and the side walls of the two baffles 24 are respectively fixedly installed at both ends of the support shaft 13.

[0046] In use, when constructing or renovating transmission lines, transmission towers are built to support the transmission cable body 1. The transmission cable body 1 is fixed by clamps 11 to prevent multiple transmission cable bodies 1 from getting too close to each other due to strong winds in the air, which could lead to increased power loss, reduced transmission efficiency, or air breakdown, resulting in arc discharge and causing short circuits or local overheating. Support rod 12 provides support to clamps 11, support rod 24 provides support to support shaft 13, and support shaft 13 provides support to support rod 12. Support rod 24 is installed on the transmission tower so that the transmission cable body 1 can be stably installed on the transmission tower. Adjustment components are installed at intervals on multiple transmission towers.

[0047] When the dimensions of the power transmission cable body 1 change due to mechanical stress and environmental factors, the control center activates cylinder 2, which moves the wire rope 21. This movement, via support rod 14, provides support to guide plate 22. Guide plate 22 guides and limits the wire rope 21, causing it to move fixed plate 23. Fixed plate 23 then moves baffle 24, causing support shaft 13 to rotate. Support shaft 13 then rotates support rod 12, changing the position of clamp 11 and causing clamp 11 to move the power transmission cable body 1 from... Figure 1 The upward or downward movement of the state shown changes the installation height of the transmission cable body 1 at the transmission tower where the adjustment component is installed. This ensures that the transmission cable body 1 between the transmission tower with the adjustment component and the adjacent transmission towers on the left and right sides can always maintain a taut state, without becoming slack or too tight, thus avoiding affecting the sag of the transmission cable body 1 and the safe distance to the ground.

[0048] Example 2, the technical solution of this example differs from Example 1 in that: the adjustment assembly further includes: an extension plate 25, a pressure plate 26, a sliding rod 27, a piston 28, a sealed chamber 29, an air supply pipe 210, an air collection box 211, and a cylinder 212. An extension plate 25 is fixedly installed on the side wall of each of the two baffles 24. A pressure plate 26 is correspondingly abutted against the side wall of each of the two extension plates 25. A sliding rod 27 is fixedly installed on the side wall of each of the two pressure plates 26. A piston 28 is fixedly installed at one end of each of the two sliding rods 27. A sealed chamber 29 is slidably abutted against the outside of each of the two pistons 28. One end of each sealed chamber 29 is fixedly installed on both sides of the support rod 12. The sealed chamber 29 and the piston 28 are sealed together. A cylinder 212 for driving the piston 28 is fixedly installed at the bottom of the support rod 14. The piston 28 is used to drive the sliding rod 27 to move. The pressure plate 26 abuts against or releases the expansion plate 25. The baffle 24, expansion plate 25 and pressure plate 26 are respectively provided with grooves, holes and protrusions. The grooves, holes and protrusions are corresponding to each other. For example, if a groove is provided on the baffle 24, a protrusion that matches the groove is provided at the corresponding position on the pressure plate 26. The baffle 24, expansion plate 25 and pressure plate 26 cooperate with each other to fix the position of the support rod 12. Both sealed chambers 29 are connected to a gas supply pipe 210. One end of the two gas supply pipes 210 is connected to the same gas collection box 211. The side wall of the gas collection box 211 is fixedly installed on the support rod 24. A movable plug fixed on the output end of the cylinder 212 is slidably installed in the gas collection box 211. The cylinder 212 drives the movable plug to move, so that the gas in the gas collection box 211 is transported away through the gas supply pipe 210 or the gas is drawn back into the gas collection box 211 through the gas supply pipe 210.

[0049] In use, when the dimensions of the power transmission cable body 1 change due to mechanical stress and environmental factors, the control center controls the start of cylinder 212 before starting cylinder 1. Starting cylinder 212 draws the gas in the sealed chamber 29 back into the gas collection box 211 through the gas pipe 210. The suction force moves the piston 28 in the sealed chamber 29, which in turn moves the sliding rod 27. The sliding rod 27 then moves the pressure plate 26, separating it from the expansion plate 25 and the baffle 24. The pressure plate 26 no longer generates friction with the expansion plate 25 and the baffle 24. At this point, the control center starts cylinder 2, causing it to rotate the support rod 12 around the support shaft 13 via the wire rope 21, thus causing the clamp 11 to... Figure 1 Rotating clockwise downwards or upwards at the indicated position changes the installation height of the transmission cable body 1 at the transmission tower where the adjustment component is installed, thereby adjusting the tension of the transmission cable body 1.

[0050] After the tension is adjusted, the control center restarts cylinder 212 to transport the gas in the gas collection box 211 to the sealed chamber 29 through the gas supply pipe 210. The gas pushes the piston 28 in the sealed chamber 29 to move, which in turn drives the sliding rod 27 to slide. The sliding rod 27 then drives the pressure plate 26 to move, so that the pressure plate 26 abuts against the expansion plate 25 and the baffle 24. At the same time, the grooves, holes and protrusions respectively provided on the surfaces of the expansion plate 25, the baffle 24 and the pressure plate 26 abut against each other to increase friction and prevent the angle of the baffle 24 from changing under the weight of the power transmission cable body 1, which would cause the tension of the power transmission cable body 1 to not be maintained in the adjusted state.

[0051] By controlling the cylinder 212 to drive the pressure plate 26 to contact or separate from the extension plate 25 and the baffle 24, the support rod 12 can be kept in the adjusted position, ensuring that the position and angle of the support rod 12 reach the expected set value.

[0052] Example 3, the technical solution of which differs from Example 2 includes: an ice-breaking component for assisting the operation of the adjustment component is provided on the support rod 2 14. The ice-breaking component includes: a guide block 3, a spring 31, a sliding plate 32, an ice-breaking cone 33, and a slider 34. One end of the guide block 3 is fixedly installed on the side wall of the baffle 24 to guide the sliding plate 32. A spring 31 is fixedly installed inside the guide block 3. A sliding plate 32 is fixedly installed on one end of the spring 31. The spring 31 provides elastic force to the sliding plate 32. An ice-breaking cone 33 is fixedly installed on the side wall of the sliding plate 32. A slider 34 slides against the side wall of the ice-breaking cone 33. One end of the slider 34 is fixedly installed on the side wall of the pressure plate 26.

[0053] In use, after the pressure plate 26 is separated from the extension plate 25 and the baffle 24, and the cylinder 2 is activated to adjust the position of the support rod 12 and the clamp 11, the sliding fit between the slider 34 and the icebreaker 33 causes the icebreaker 33 to slide against the slider 34, causing the icebreaker 33 to slide away from the side where the extension plate 25 is located. Then, after the slider 34 and the icebreaker 33 are separated, the icebreaker 33 is ejected again to the side where the extension plate 25 is located under the action of the spring 31, and finally strikes the surface of the pressure plate 26.

[0054] During the process, the sliding plate 32 is slidably engaged with the guide block 3, so that the sliding plate 32 can only move in a straight line along the guide block 3, and the sliding plate 32 can only drive the ice-breaking cone 33 to move in a straight line. The ice-breaking cone 33 strikes the surface of the pressure plate 26, so that the ice layer attached to the surface of the pressure plate 26 located at high altitude in winter can be effectively broken, and the surface of the pressure plate 26, the extension plate 25, and the baffle 24 will not freeze due to the low temperature in winter, which would reduce the friction between the pressure plate 26 and the extension plate 25 and the baffle 24.

[0055] In another embodiment that differs from the aforementioned embodiment, the groove on the surface of the pressure plate 26 is changed to a hole, and a set of sliders 34, ice-breaking cones 33, sliding plates 32, springs 31 and guide blocks 3 are also provided at the hole, so that the ice layer attached to the surface of the extension plate 25 and the baffle 24 can also be effectively broken.

[0056] In another embodiment, which differs from the aforementioned embodiment, a ramp adapted to the slider 34 is also provided on the outer wall of the side where the icebreaker 33 is located, and the ramp and the slider 34 slide against each other to make the ramp 32 drive the icebreaker 33 to move in a straight line along the guide block 3.

[0057] Example 4, the technical solution of this example, which differs from the previous examples, includes: the control component includes: an adjusting rod 4, a toothed plate 41, a toothed ring 42, a movable shaft 43, a mounting plate 431, a magnetic ring 44, a magnet 45, a pressing plate 46, a support block 47, and a pressure strain gauge 471. One end of the adjusting rod 4 is fixedly installed on the power transmission cable body 1, and the other end of the adjusting rod 4 is fixedly installed with a toothed plate 41. A toothed ring 42 meshes on the toothed plate 41. One end of the toothed ring 42 is fixedly installed on one end of the movable shaft 43. The movable shaft 43 is movably installed on the mounting plate 431 through a bearing. One end of the mounting plate 431 is fixedly installed with a toothed ring 42. A magnetic ring 44 is fixedly installed on the side wall of the support rod 12. A magnet 45 is magnetically connected to the side wall of the magnetic ring 44. One end of the magnet 45 is fixedly installed on the end of the mounting plate 431 to fix the position of the gear ring 42, so that the position of the adjusting rod 4 will not easily change. A compression plate 46 is fixedly installed on the end of the movable shaft 43 away from the gear ring 42. One end of the compression plate 46 slides through the support block 47. One end of the support block 47 is fixedly installed on the side wall of the support rod 12. Two pressure strain gauges 471 arranged symmetrically are fixedly installed inside the support block 47.

[0058] When the power transmission cable body 1 changes size due to mechanical stress and environmental factors, the power transmission cable body 1 will drive the adjusting rod 4 to rotate around the clamp 11 as the axis. The adjusting rod 4 will drive the toothed plate 41 to rotate, so that the toothed plate 41 meshes with the toothed ring 42 and drives the toothed ring 42 to rotate. The toothed ring 42 drives the movable shaft 43 to rotate. The mounting plate 431 provides support force to the movable shaft 43. The movable shaft 43 drives the pressing plate 46 to move, and the pressing plate 46 squeezes the pressure strain gauge 471 on the inner wall of the support block 47.

[0059] When the pressure strain gauge 471 located above the support block 47 detects a value, it means that at the current height, the power transmission cable body 1 between the transmission tower with the adjustment component and the transmission tower without the adjustment component has expanded and elongated. This triggers the automatic control cylinders 2 and 212 to enter the height adjustment mode, causing the clamp 11 to... Figure 1The position shown is raised upwards until the pressure strain gauge 471 can no longer detect a pressure value or moves to the maximum height;

[0060] When the pressure strain gauge 471 located below the support block 47 detects a value, it means that the power transmission cable body 1 between the power transmission tower with the adjustment component installed and the power transmission tower without the adjustment component installed at the current height has been shortened. As a result, the cylinders 1 and 212 are automatically controlled to enter the lowering mode, so that the clamp 11 is lowered from the raised position until the pressure strain gauge 471 can no longer detect the pressure value or moves to the minimum height.

[0061] This invention also provides a method for using a power transmission line connection device for power grid infrastructure, comprising the following steps:

[0062] S1. Install the power transmission cable body 1, clamp 11, support rod one 12, support shaft 13, support rod two 14, adjustment component, ice-breaking component and control component on the power transmission tower, wherein the adjustment component, ice-breaking component and control component are installed at intervals;

[0063] S2. The tension of the power transmission cable body 1 is monitored and responded to by the adjustment component, so that the adjustment component can be activated when the tension of the power transmission cable body 1 changes;

[0064] S3. When the tension of the power transmission cable body 1 changes, the height of the clamp 11 is adjusted by the adjustment component to adjust the tension of the power transmission cable body 1. The height of the clamp 11 changes within the range of 0-50cm.

[0065] S4. The ice layer attached to the surface of the baffle 24, extension plate 25, and pressure plate 26 in the adjustment assembly is broken by the ice-breaking component in winter.

[0066] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0067] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power transmission line connection device for power grid infrastructure, comprising a clamp (11) for fixing a power transmission cable body (1), a first support rod (12) fixed on the clamp (11) to support the power transmission cable body (1), a support shaft (13) movably inserted into the first support rod (12), and a second support rod (14) installed on the support shaft (13), characterized in that: It also includes an adjustment component for changing the tension of the power transmission cable body (1), an ice-breaking component to assist the operation of the adjustment component, and a control component for controlling the operation of the adjustment component. The adjustment component includes: Cylinder 1 (2) is fixed on support rod 2 (14) to change the tension of the power transmission cable body (1). A steel wire rope (21) is connected to the output end of cylinder 1 (2). A fixing plate (23) is fixed to one end of the steel wire rope (21). The bottom of the fixing plate (23) is fixed to the top of support rod 1 (12). The fixing plate (23) is fixed to the support shaft (13) by a baffle (24). The ice-breaking assembly includes a guide block (3) fixed to the side wall of the baffle (24) for guiding. The control assembly includes an adjusting rod (4) fixed to the power transmission cable body (1). One end of the adjusting rod (4) is fixed with a toothed plate (41), and a toothed ring (42) meshes on the toothed plate (41). One end of the toothed ring (42) is fixed with a movable shaft (43). The movable shaft (43) is fixed to the side wall of the support rod (12) by a mounting plate (431). A magnetic ring (44) is fixed on the side wall of the toothed ring (42), and a magnetic ring (44) is fixed on the side wall of the magnetic ring (44). A magnet (45) is attracted, one end of which is fixed to the position of the fixed toothed ring (42) at one end of the mounting plate (431). A pressing plate (46) is fixed at the end of the movable shaft (43) away from the toothed ring (42). A support block (47) is slidably passed through one end of the pressing plate (46). One end of the support block (47) is fixed to the side wall of the support rod (12). Pressure strain gauges (471) are fixed inside the support block (47) and arranged symmetrically on the upper and lower sides.

2. The power transmission line connection device for power grid infrastructure according to claim 1, characterized in that: An extension plate (25) is fixed on the side wall of the baffle (24). A pressure plate (26) abuts against the side wall of the extension plate (25). A sliding rod (27) is fixed on the side wall of the pressure plate (26). A piston (28) is fixed at one end of the sliding rod (27). A sealed chamber (29) abuts against the outside of the piston (28). One end of the sealed chamber (29) is fixed on the second support rod (14). The sealed chamber (29) and the piston (28) are sealed together.

3. The power transmission line connection device for power grid infrastructure according to claim 2, characterized in that: The bottom of the second support rod (14) is fixed with a second cylinder (212) for driving the piston (28) to move. The piston (28) is used to drive the sliding rod (27) to move so that the pressure plate (26) and the expansion plate (25) are pressed together or released. The baffle (24), the expansion plate (25) and the pressure plate (26) cooperate with each other to fix the position of the first support rod (12).

4. The power transmission line connection device for power grid infrastructure according to claim 3, characterized in that: The sealed chamber (29) is connected to an air supply pipe (210), one end of which is connected to an air collection box (211). The side wall of the air collection box (211) is fixed to the second support rod (14), and a movable plug fixed to the output end of the second cylinder (212) is slidably installed inside the air collection box (211).

5. A power transmission line connection device for power grid infrastructure as described in claim 1, characterized in that: A spring (31) is fixed inside the guide block (3). A sliding plate (32) is fixed to one end of the spring (31) to provide elastic force to the sliding plate (32). An icebreaker (33) is fixed on the side wall of the sliding plate (32). A slider (34) abuts against the side wall of the icebreaker (33). A pressure plate (26) is fixed to one end of the slider (34).

6. A method of using the power transmission line connection device for power grid infrastructure as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Install the power transmission cable body (1), clamp (11), support rod one (12), support shaft (13), support rod two (14), adjustment component, ice-breaking component and control component on the power transmission tower, wherein the adjustment component, ice-breaking component and control component are installed at intervals; S2. The tension of the power transmission cable body (1) is monitored and responded to by the control component, so that the control component can be activated when the tension of the power transmission cable body (1) changes; S3. When the tension of the power transmission cable body (1) changes, the tension of the power transmission cable body (1) is adjusted by changing the height of the clamp (11) using the adjustment component. S4. The ice layer attached to the surface of the baffle (24), extension plate (25), and pressure plate (26) in the adjustment assembly is broken by the ice-breaking component in winter.

Images