Cable tension adjusting device for electric power stringing and use method of cable tension adjusting device

Abstract

The invention discloses a cable tension adjusting device for power stringing, and the cable tension adjusting device comprises a cable fixing assembly which comprises an arc-shaped pulling plate, one end of the arc-shaped pulling plate is rotatably connected with a linkage triangular plate, one corner of the linkage triangular plate is rotatably connected with a clamping linkage plate, and the other corner of the linkage triangular plate is rotatably connected with the clamping linkage plate; a movable clamping plate is rotatably connected to the other corner of the linkage triangular plate, a clamping seat is fixedly connected to the top of the clamping linkage plate, a limiting plate is fixedly connected to the side wall of the clamping linkage plate, and a limiting sleeve is fixedly connected to the outer surface of the limiting plate. A cable is clamped in a mechanical linkage mode, an arc-shaped pulling plate drives a linkage triangular plate when being pulled by pulling force, then a movable clamping plate is driven to accurately move upwards to be attached to a clamping base, a first limiting pin on the back face of the movable clamping plate slides in a first arc-shaped groove, it is ensured that the movement track is stable, clamping deviation is avoided, and meanwhile the clamping efficiency is improved. And the cable baffle can stably shield the outer side of the clamping structure to prevent the cable from being separated.

Description

Technical Field

[0001] This invention relates to the field of power engineering technology, specifically to a cable tension adjustment device for power line overhead lines and its usage method. Background Technology

[0002] Power line installation is a core component of power transmission network construction, and its construction quality directly determines the stability, safety, and long-term operational efficiency of the power system. During installation, cables must maintain appropriate tension. Insufficient tension can cause excessive sag due to weight, potentially leading to insufficient clearance from ground obstacles (such as trees and buildings) and significant swaying under wind conditions, accelerating cable fatigue. Excessive tension, on the other hand, can exceed the cable's rated tensile strength, causing deformation, breakage, and even serious accidents such as tower tilting or collapse.

[0003] According to the search, announcement number CN118004843A discloses an automated wire tensioning device for power poles. By sequentially passing the outer end of the wire body through the opposite ends of two guide wheels on the left and right sides, initially, the wire body is slightly larger than the gap between the two guide wheels. Therefore, when the outer end of the wire body is inserted into the gap between the two guide wheels, the wire body slightly pushes the two guide wheels outward. The movement of the two guide wheels causes the support spring to compress and deform. The deformed support spring supports the sliding block and clamps the wire body in the gap on the opposite sides of the two guide wheels, thereby maintaining constant tension when the wire body is wound or unwound.

[0004] However, in actual use, the tensioning device relies on the support spring to clamp and fix the cable body before adjusting the tension. The spring has a certain deformation capacity and cannot effectively clamp the cable body, thus making it difficult to achieve good tension adjustment. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cable tension adjustment device for power line overhead lines and its usage method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cable tension adjustment device for power line overhead lines, comprising: a cable fixing assembly, which includes an arc-shaped pull plate, a linkage triangular plate rotatably connected to one end of the arc-shaped pull plate, a clamping linkage plate rotatably connected to one corner of the linkage triangular plate, and a movable clamping plate rotatably connected to the other corner of the linkage triangular plate, a clamping seat fixedly connected to the top of the clamping linkage plate, a limit plate fixedly connected to the side wall of the clamping linkage plate, and a limit sleeve fixedly connected to the outer surface of the limit plate; An adjusting assembly includes a take-up lever, one end of which is engaged with a toothed ratchet, and the other end of which is engaged with a first end-face ratchet. The first end-face ratchet is meshed with a second end-face ratchet. A first end plate and a second end plate are rotatably connected to the outer surface of the take-up lever. A circular cover is connected to the outer surface of the first end plate by screws. A shaft is rotatably connected inside the circular cover. A toggle plate is fixedly connected to one end of the shaft. A pawl is rotatably connected to one end of the toggle plate. A spring plate is abutted against the outer surface of the pawl. A handle is connected to the other end of the shaft by a through bolt. A connecting post is fixedly connected to the inner surface of the first end plate. A limit rod is fixedly connected to the center of the end face of the second end-face ratchet. A compression spring is sleeved on the outer surface of the limit rod. A hinge seat is rotatably connected to one end of the limit rod by a pin. A support frame is fixedly connected to the outer surface of the second end plate. A tension steel cable is wound inside the take-up lever. A connecting plate is fixedly connected to the outer wall of the connecting post.

[0007] As described above, the arc-shaped pull plate is inserted inside the limiting sleeve, the back of the movable clamping plate is fixedly connected with a first limiting pin, the back of the clamping linkage plate is provided with a first arc-shaped groove, the first limiting pin is slidably connected inside the first arc-shaped groove, and the axis of the shaft that rotatably connects the linkage triangle plate and the clamping linkage plate is at the same position as the axis of the first arc-shaped groove.

[0008] As described above, the outer surface of the clamping seat is rotatably connected to a cable baffle via a pin. The outer surface of the cable baffle is provided with a second arc-shaped groove. A second limiting pin is slidably contacted in the second arc-shaped groove. One end of the second limiting pin is fixedly connected to the clamping seat. The outer surface of the cable baffle is provided with a handle hole.

[0009] As mentioned above, the bottom of the clamping seat and the top of the movable clamping plate are both provided with semi-circular grooves adapted to the cable, and multiple anti-slip grooves are provided in the semi-circular grooves at equal intervals.

[0010] The above also includes a tension calculation component, which includes a tension sensor. The signal line of the tension sensor is connected to a digital display. One end of the tension sensor is hooked with a first safety hook, and the other end of the tension sensor is hooked with a second safety hook.

[0011] As described above, the outer surface of the tension sensor is fitted with a housing, and a digital display is embedded in the front of the housing. The end of the first safety hook away from the tension sensor is fixedly connected to an arc-shaped pull plate, and the end of the second safety hook away from the tension sensor is fixedly connected to a tension cable.

[0012] As described above, three connecting posts are fixedly connected between the first end plate and the second end plate. The three connecting posts are evenly distributed around the axis of the winding rod. A connecting plate is fixedly connected to the outer circumference of one of the connecting posts. A lasso with a safety hook is fixedly connected to the end of the connecting plate away from the connecting post.

[0013] As described above, a straight groove is provided through the outer circumference of the winding rod, and a tension steel cable is bound and connected in the straight groove. The pawl and the toothed ratchet are mechanically engaged.

[0014] As described above, one end of the compression spring abuts against the second end face ratchet, and the other end of the compression spring abuts against the support frame. One end of the spring sheet is connected to the inner wall of the circular cover by a rivet.

[0015] The present invention also provides a method for using a cable tension adjustment device for power line overhead lines, comprising the following steps: S1. Wrap the sling around the power crossarm, then hook the safety hook of the sling onto the capsule-shaped collar at one end of the connecting plate, then hook the first safety hook onto the ring at one end of the tension sensor, and finally hook the second safety hook onto the ring at the other end of the tension sensor to complete the installation of the entire device. S2. Lift the entire cable fixing assembly through the handle hole on the outer surface of the cable baffle, place the cable between the clamping seat and the movable clamping plate, and then rotate the cable baffle to cover the outer surface of the clamping seat and the movable clamping plate to prevent the cable from coming out of the clamping seat and the movable clamping plate during subsequent tension adjustment. S3. Turning the handle clockwise causes the shaft to rotate, which in turn causes the actuating plate to rotate. The actuating plate then causes the pawl to rotate, which in turn causes the toothed ratchet to rotate. The toothed ratchet then causes the winding rod to rotate, thereby winding up the tension cable. The tension cable, in conjunction with the second safety hook, pulls the tension sensor. The tension sensor, in conjunction with the first safety hook, pulls the arc-shaped pull plate. The arc-shaped pull plate pulls the bottom of the linkage triangle plate, causing it to move the movable clamping plate upward. The movable clamping plate, in conjunction with the clamping seat, clamps the cable and generates tension on the cable. S4. When the rewind lever rotates, it can drive the first end face ratchet to rotate. The second end face ratchet will not hinder the first end face ratchet from rotating clockwise, but will prevent the first end face ratchet from rotating counterclockwise. This prevents the rewind lever from rotating back after the handle is unloaded. As the rewind lever continues to rewind the tension cable, it will eventually pull the cable and adjust its tension. S5. By observing the tension value through the digital display, you can know the tension of the cable adjustment. After reaching the required tension, stop turning the handle clockwise and then fix the cable on the power crossarm. S6. After the cable is fixed, the hinge seat is rotated 90 degrees by turning it. The hinge seat then pulls the limit bar. At this time, the second end ratchet disengages from the first end ratchet, and the taut tension cable is pulled to drive the winding rod to rotate in the opposite direction, so that the tension wire can be extended again. S7. Remove the safety hook of the sling from the capsule-shaped collar of the connecting plate, then separate the sling from the power crossarm, and finally lift the cable baffle. The movable clamping plate and the clamping seat will automatically separate the cable, thereby removing the cable fixing component and completing the entire cable tension adjustment operation.

[0016] Compared with the prior art, the cable tension adjustment device for power line overhead lines and its usage method have the following advantages: I. This invention utilizes a cable fixing assembly that clamps the cable via mechanical linkage. When the arc-shaped pull plate is pulled by tension, it drives the linkage triangular plate, which in turn drives the movable clamping plate to move precisely upward and fit against the clamping seat. Furthermore, the first limiting pin on the back of the movable clamping plate slides within the first arc-shaped groove, ensuring a stable movement trajectory and preventing clamping deviation. Simultaneously, the cable baffle can stably shield the outside of the clamping structure to prevent the cable from detaching. The semi-circular grooves and anti-slip grooves on the clamping seat and the movable clamping plate further enhance the friction with the cable. Compared to the problems of easy deformation and poor clamping effect of traditional spring clamps, the clamping method of this invention is more stable, providing a stable foundation for tension adjustment.

[0017] Second, the adjustment component of this invention, through the cooperation of ratchet pawl and end face ratchet, can both drive the winding rod to wind up the steel cable to adjust the tension and prevent the winding rod from rotating back. After adjustment, flipping the hinge seat can disengage the end face ratchet and reset the tensioned steel cable. The overall operation process is clear and requires no complicated operation, improving construction safety and efficiency. At the same time, by setting up a tension calculation component to monitor the tension in real time, the tension sensor is connected to the adjustment component and the cable fixing component through a safety hook, which can convert the tension into data and transmit it to a digital display. The staff can intuitively read the value and accurately judge whether the tension meets the requirements, avoiding cable breakage and tower tilting due to excessive tension or cable sag and swing due to insufficient tension.

[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded view of the cable fixing assembly in this invention; Figure 3This is a front view of the cable fixing assembly in this invention; Figure 4 This is a three-dimensional schematic diagram of the adjustment component in this invention; Figure 5 This is a schematic diagram of the explosive decomposition of the regulating component in this invention; Figure 6 This is a cross-sectional schematic diagram of the circular cover of the adjustment component in this invention; Figure 7 This is a top view of the adjustment component in this invention; Figure 8 This is a schematic diagram of the explosive decomposition of the tensile force calculation component in this invention.

[0020] In the diagram: 1. Cable fixing assembly; 101. Arc-shaped pull plate; 102. Linkage triangle plate; 103. Clamping linkage plate; 104. Movable clamping plate; 105. Clamping seat; 106. Limiting plate; 107. Limiting sleeve; 108. First arc-shaped groove; 109. Cable baffle; 110. Second arc-shaped groove; 2. Adjustment assembly; 201. Rewinding rod; 202. Toothed ratchet; 203. First end face ratchet; 204. Second end face ratchet; 205. First end plate; 206. 207. End plate; 208. Circular cover; 209. Shaft; 210. Actuating plate; 211. Pawl; 212. Spring plate; 213. Handle; 214. Connecting post; 215. Limiting square rod; 216. Hinge seat; 217. Support frame; 218. Tension cable; 219. Connecting plate; 220. Lasso; 220. Compression spring; 3. Tension calculation component; 301. Tension sensor; 302. Digital display; 303. Housing; 4. First safety hook; 5. Second safety hook. Detailed Implementation

[0021] 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.

[0022] like Figure 1-8 As shown, the present invention provides a technical solution: a cable tension adjustment device for power line overhead lines and its usage method.

[0023] According to the overall structure of the device, it includes: a cable fixing assembly 1, which includes an arc-shaped pull plate 101, a linkage triangular plate 102 rotatably connected to one end of the arc-shaped pull plate 101, a clamping linkage plate 103 rotatably connected to one corner of the linkage triangular plate 102, and a movable clamping plate 104 rotatably connected to the other corner of the linkage triangular plate 102. A clamping seat 105 is fixedly connected to the top of the clamping linkage plate 103, a limiting plate 106 is fixedly connected to the side wall of the clamping linkage plate 103, and a limiting sleeve 107 is fixedly connected to the outer surface of the limiting plate 106. Adjustment component 2 includes a winding rod 201, one end of which is engaged with a toothed ratchet 202, and the other end of which is engaged with a first end-face ratchet 203. The first end-face ratchet 203 is meshed with a second end-face ratchet 204. A first end plate 205 and a second end plate 206 are rotatably connected to the outer surface of the winding rod 201. A circular cover 207 is screwed to the outer surface of the first end plate 205. A shaft 208 is rotatably connected inside the circular cover 207. A toggle plate 209 is fixedly connected to one end of the shaft 208. A pawl 210 is rotatably connected to one end of the toggle plate 209. A spring plate 211 abuts against the outer surface of the pawl 210. The free end of the spring plate 211 has an upwardly folded edge (not shown in the figure). The height of the outer edge of the folded edge is higher than the connecting part of the pawl 210 in its natural state. The purpose of the folded edge is to prevent interference and jamming with the connecting part of the pawl 210 when the pawl 210 moves in the opposite direction. The other end of the shaft 208 is connected to the handle 212 by a through bolt. The inner surface of the first end plate 205 is fixedly connected to the connecting post 213. The end face center of the ratchet 204 on the second end face is fixedly connected to the limiting square rod 214. The outer surface of the limiting square rod 214 is sleeved with a compression spring 220, and one end of the limiting square rod 214 is rotatably connected to the hinge seat 215 with a wrench by a pin. The outer surface of the second end plate 206 is fixedly connected to the support frame 216. The outer side of the support frame 216 has a square hole for the limiting square rod 214 to pass through to prevent rotation. The hinge seat 215 is located on the outer side of the support frame 216. The inside of the winding rod 201 is wound with a tension steel cable 217. The outer wall of the connecting post 213 is fixedly connected to the connecting plate 218.

[0024] like Figures 2-3 As shown, the arc-shaped pull plate 101 is inserted inside the limiting sleeve 107. The back of the movable clamping plate 104 is fixedly connected with a first limiting pin. The back of the clamping linkage plate 103 is provided with an arc-shaped groove 108. The first limiting pin is slidably connected inside the arc-shaped groove 108. The axis of the shaft that is rotatably connected to the linkage triangle plate 102 and the clamping linkage plate 103 is at the same position as the axis of the arc-shaped groove 108.

[0025] The outer surface of the clamping seat 105 is rotatably connected to the cable baffle 109 via a pin. The outer surface of the cable baffle 109 is provided with a second arc-shaped groove 110. A second limiting pin is slidably contacted in the second arc-shaped groove 110. One end of the second limiting pin is fixedly connected to the clamping seat 105. The outer surface of the cable baffle 109 is provided with a handle hole.

[0026] Both the bottom of the clamping base 105 and the top of the movable clamping plate 104 are provided with semi-circular grooves adapted to the cable, and multiple anti-slip grooves are provided in the semi-circular grooves.

[0027] When the arc-shaped pull plate 101 is pulled by the tension sensor 301, it will drive the bottom end of the linkage triangle plate 102 rotatably connected to it to move. The linkage triangle plate 102 further transmits power to the clamping linkage plate 103 and the movable clamping plate 104 rotatably connected to it respectively. The clamping seat 105 fixed at the top of the clamping linkage plate 103 forms a clamping structure with the movable clamping plate 104. The first limiting pin on the back of the movable clamping plate 104 slides in the first arc-shaped groove 108 on the back of the clamping linkage plate 103, so that the movable clamping plate 104 moves up precisely and fits against the clamping seat 105. At the same time, the cable baffle 109 rotatably connected to the outer surface of the clamping seat 105 through the pin shaft can rotate around the pin shaft and slide through the second arc-shaped groove 110 and the second limiting pin. The clamping base 105 and the movable clamping plate 104 are stably shielded on their outer surfaces. Furthermore, the bottom of the clamping base 105 and the top of the movable clamping plate 104 are both provided with semi-circular grooves to accommodate the cable. Multiple anti-slip grooves within these grooves enhance friction with the cable. The advantages of this combination are: firstly, clamping is achieved through mechanical linkage, avoiding the deformation problem of traditional spring clamps, resulting in stronger clamping stability and effectively preventing the cable from loosening during tension adjustment; secondly, the combination of the limiting pin and the arc-shaped groove ensures precise movement trajectories of each component, preventing clamping deviation; and thirdly, the cable baffle 109 further prevents cable detachment, while the anti-slip grooves improve the clamping anti-slip effect, comprehensively ensuring the reliability and safety of cable fixation and providing a stable foundation for subsequent tension adjustment.

[0028] like Figure 1 and 8 As shown, the tension adjustment device also includes a tension calculation component 3, which includes a tension sensor 301. The signal line of the tension sensor 301 is connected to a digital display 302. One end of the tension sensor 301 is hooked to a first safety hook 4, and the other end of the tension sensor 301 is hooked to a second safety hook 5.

[0029] The outer surface of the tension sensor 301 is fitted with a housing 303, and a digital display 302 is embedded in the front of the housing 303. The end of the first safety hook 4 away from the tension sensor 301 is fixedly connected to the arc-shaped pull plate 101, and the end of the second safety hook 5 away from the tension sensor 301 is fixedly connected to the tension cable 217.

[0030] By setting up the tension calculation component 3, one end of the tension sensor 301 is connected to the arc-shaped pull plate 101 of the cable fixing component 1 via the first safety hook 4, and the other end is connected to the tension cable 217 of the adjustment component 2 via the second safety hook 5, forming a closed loop of force transmission between the adjustment component 2, the tension calculation component 3, and the cable fixing component 1. When the adjustment component 2 applies tension to the cable by winding the tension cable 217, the tension is transmitted to the tension sensor 301 through the tension cable 217 and the second safety hook 5, and then to the arc-shaped pull plate 101 via the first safety hook 4. At this time, the tension sensor 301 can sense the magnitude of the tension in real time and transmit the data to the digital display 302 through the signal line. The staff can intuitively read the current tension value through the digital display 302, thereby accurately judging whether the cable tension meets the requirements, avoiding problems such as cable deformation and breakage or tower tilting due to excessive tension, or cable sagging and swinging due to insufficient tension, thus ensuring the safety and accuracy of power line construction.

[0031] like Figures 4-7 As shown, three connecting posts 213 are fixedly connected between the first end plate 205 and the second end plate 206. The three connecting posts 213 are evenly distributed around the axis of the winding rod 201. A connecting plate 218 is fixedly connected to the outer circumference of one of the connecting posts 213. A lasso 219 with a safety hook is fixedly connected to the end of the connecting plate 218 away from the connecting post 213.

[0032] A straight groove is provided through the outer circumference of the winding rod 201, and a tension steel cable 217 is bound and connected in the straight groove. The pawl 210 and the toothed ratchet 202 are mechanically engaged.

[0033] One end of the compression spring 220 abuts against the second end face ratchet 204, and the other end of the compression spring 220 abuts against the support frame 216. One end of the spring sheet 211 is connected to the inner wall of the circular cover 207 by a rivet.

[0034] First, during installation, the device is secured to the power crossarm by a sling 219 with a safety hook at one end of the connecting plate 218, providing stable support for the adjustment assembly 2. The tension cable 217 bound to the straight groove on the outer periphery of the winding rod 201 is connected to the tension sensor 301 via the second safety hook 5, forming a tension transmission path. When tension needs to be adjusted, the handle 212 is turned clockwise, causing the shaft 208 and the actuating plate 209 at one end of the shaft 208 to rotate. The actuating plate 209 then drives the pawl 210 connected to its end to rotate. Under the action of the spring plate 211 on the inner wall of the circular cover 207, the pawl 210 is always engaged with one end of the winding rod 201. The toothed ratchet 202 maintains a mechanical engagement, thereby driving the toothed ratchet 202 and the winding rod 201 to rotate synchronously, winding the tension cable 217. The tension is transmitted to the subsequent components through the tension cable 217, ultimately pulling the cable to increase tension. At the same time, the first end face ratchet 203, which is engaged with the other end of the winding rod 201, rotates with the winding rod 201. The second end face ratchet 204, which meshes with the first end face ratchet 203, is limited by the support frame 216 and resisted by the compression spring 220, allowing only the first end face ratchet 203 to rotate clockwise, preventing it from rotating counterclockwise, effectively avoiding the loss of tension caused by the winding rod 201 reversing after the handle 212 is unloaded.

[0035] The present invention also provides a method for using a cable tension adjustment device for power line overhead lines, comprising the following steps: S1. Wrap the lasso 219 around the power crossarm, then hook the safety hook of the lasso 219 onto the capsule-shaped collar at one end of the connecting plate 218, then hook the first safety hook 4 onto the ring at one end of the tension sensor 301, and finally hook the second safety hook 5 onto the ring at the other end of the tension sensor 301 to complete the installation of the entire device. S2. Lift the entire cable fixing assembly 1 through the handle hole on the outer surface of the cable baffle 109, place the cable between the clamping seat 105 and the movable clamping plate 104, and then rotate the cable baffle 109 to cover the outer surface of the clamping seat 105 and the movable clamping plate 104 to prevent the cable from coming out of the clamping seat 105 and the movable clamping plate 104 during subsequent tension adjustment. S3. Turning the handle 212 clockwise causes the shaft 208 to rotate, which in turn causes the actuating plate 209 to rotate. The actuating plate 209 then causes the pawl 210 to rotate, which in turn causes the toothed ratchet 202 to rotate. The toothed ratchet 202 then causes the winding rod 201 to rotate, thereby winding up the tension cable 217. The tension cable 217, in conjunction with the second safety hook 5, pulls the tension sensor 301. The tension sensor 301, in conjunction with the first safety hook 4, pulls the arc-shaped pull plate 101. The arc-shaped pull plate 101 pulls the bottom end of the linkage triangle plate 102, causing it to move the movable clamping plate 104 upward. The movable clamping plate 104, in conjunction with the clamping seat 105, clamps the cable and generates tension on the cable. S4. When the winding lever 201 rotates, it can drive the first end face ratchet 203 to rotate. The second end face ratchet 204 will not hinder the first end face ratchet 203 from rotating clockwise, but will prevent the first end face ratchet 203 from rotating counterclockwise. This prevents the winding lever 201 from rotating back after the handle 212 is unloaded. As the winding lever 201 continues to wind up the tension cable 217, it will eventually pull the cable and adjust its tension. S5. By observing the tension value through the digital display 302, you can know the tension of the cable adjustment. After reaching the required tension, stop turning the handle 212 clockwise and then fix the cable on the power crossarm. S6. After the cable is fixed, the hinge seat 215 is rotated 90 degrees by turning it. The hinge seat 215 then pulls the limit rod 214. At this time, the second end ratchet 204 disengages from the first end ratchet 203, and then pulls the taut tension steel cable 217 to drive the winding rod 201 to rotate in the opposite direction. In this way, the tension steel cable 217 can be extended again. S7. Remove the safety hook of the lasso 219 from the capsule-shaped collar of the connecting plate 218, then separate the lasso 219 from the power crossarm, and finally lift the cable baffle 109. The movable clamping plate 104 and the clamping seat 105 will automatically separate the cable, thereby removing the cable fixing component 1 and completing the entire cable tension adjustment operation.

[0036] 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 cable tension adjustment device for power line overhead lines, characterized in that, include: The cable fixing assembly (1) includes an arc-shaped pull plate (101), one end of which is rotatably connected to a linkage triangle plate (102), one corner of which is rotatably connected to a clamping linkage plate (103), and the other corner of which is rotatably connected to a movable clamping plate (104). The top of the clamping linkage plate (103) is fixedly connected to a clamping seat (105), and a limiting plate (106) is fixedly connected to the side wall of the clamping linkage plate (103). A limiting sleeve (107) is fixedly connected to the outer surface of the limiting plate (106). The adjusting assembly (2) includes a take-up lever (201), one end of which is engaged with a toothed ratchet (202), and the other end of which is engaged with a first end-face ratchet (203). The first end-face ratchet (203) is meshed with a second end-face ratchet (204). A first end plate (205) and a second end plate (206) are rotatably connected to the outer surface of the take-up lever (201). A circular cover (207) is connected to the outer surface of the first end plate (205) by screws. A shaft (208) is rotatably connected inside the circular cover (207). A toggle plate (209) is fixedly connected to one end of the shaft (208), and a pawl (210) is rotatably connected to one end of the toggle plate (209). The outer surface of the pawl (210) abuts against a spring plate (211). The other end of the shaft (208) is connected to a handle (212) by a through bolt. The inner surface of the first end plate (205) is fixedly connected to a connecting post (213). The end face center of the second end face ratchet (204) is fixedly connected to a limiting square rod (214). The outer surface of the limiting square rod (214) is sleeved with a compression spring (220). One end of the limiting square rod (214) is rotatably connected to a hinge seat (215) by a pin. The outer surface of the second end plate (206) is fixedly connected to a support frame (216). The inside of the winding rod (201) is wound with a tension steel cable (217). The outer wall of the connecting post (213) is fixedly connected to a connecting plate (218).

2. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: The arc-shaped pull plate (101) is inserted inside the limiting sleeve (107). The back of the movable clamping plate (104) is fixedly connected with a first limiting pin. The back of the clamping linkage plate (103) is provided with an arc-shaped groove (108). The first limiting pin is slidably connected inside the arc-shaped groove (108). The axis of the shaft that is rotatably connected to the linkage triangle plate (102) and the clamping linkage plate (103) is at the same position as the axis of the arc-shaped groove (108).

3. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: The outer surface of the clamping seat (105) is rotatably connected to a cable baffle (109) via a pin. The outer surface of the cable baffle (109) is provided with a second arc-shaped groove (110). A second limiting pin is slidably contacted in the second arc-shaped groove (110). One end of the second limiting pin is fixedly connected to the clamping seat (105). The outer surface of the cable baffle (109) is provided with a handle hole.

4. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: The bottom of the clamping seat (105) and the top of the movable clamping plate (104) are both provided with semi-circular grooves adapted to the cable, and multiple anti-slip grooves are provided in the semi-circular grooves.

5. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: It also includes a tension calculation component (3), which includes a tension sensor (301). The signal line of the tension sensor (301) is connected to a digital display (302). One end of the tension sensor (301) is hooked with a first safety hook (4), and the other end of the tension sensor (301) is hooked with a second safety hook (5).

6. The cable tension adjustment device for power line overhead lines according to claim 5, characterized in that: The outer surface of the tension sensor (301) is fitted with a housing (303), and a digital display (302) is embedded in the front of the housing (303). The end of the first safety hook (4) away from the tension sensor (301) is fixedly connected to an arc-shaped pull plate (101), and the end of the second safety hook (5) away from the tension sensor (301) is fixedly connected to a tension cable (217).

7. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: Three connecting posts (213) are fixedly connected between the first end plate (205) and the second end plate (206). The three connecting posts (213) are evenly distributed around the axis of the winding rod (201). A connecting plate (218) is fixedly connected to the outer circumference of one of the connecting posts (213). A lasso (219) with a safety hook is fixedly connected to the end of the connecting plate (218) away from the connecting post (213).

8. The cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: A straight groove is provided through the outer circumference of the winding rod (201), and a tension steel cable (217) is bound and connected in the straight groove. The pawl (210) and the toothed ratchet (202) are mechanically engaged.

9. A cable tension adjustment device for power line overhead lines according to claim 1, characterized in that: One end of the compression spring (220) abuts against the second end face ratchet (204), and the other end of the compression spring (220) abuts against the support frame (216). One end of the spring sheet (211) is connected to the inner wall of the circular cover (207) by a rivet.

10. A method of using a cable tension adjusting device for power line overhead lines, applied to the cable tension adjusting device for power line overhead lines as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Wrap the lasso (219) around the power crossarm, then hook the safety hook of the lasso (219) onto the capsule-shaped collar at one end of the connecting plate (218), then hook the first safety hook (4) onto the ring at one end of the tension sensor (301), and finally hook the second safety hook (5) onto the ring at the other end of the tension sensor (301) to complete the installation of the entire device. S2. Lift the entire cable fixing assembly (1) through the handle hole on the outer surface of the cable baffle (109), place the cable between the clamping seat (105) and the movable clamping plate (104), and then rotate the cable baffle (109) to cover the outer surface of the clamping seat (105) and the movable clamping plate (104) to prevent the cable from coming out of the clamping seat (105) and the movable clamping plate (104) during subsequent tension adjustment. S3. Turning the handle (212) clockwise causes the shaft (208) to rotate, the shaft (208) causes the actuating plate (209) to rotate, the actuating plate (209) causes the pawl (210) to rotate, the pawl (210) causes the toothed ratchet (202) to rotate, the toothed ratchet (202) causes the winding rod (201) to rotate, thereby winding up the tension cable (217). The tension cable (217) works with the second safety hook (5) to pull the tension sensor (301), the tension sensor (301) works with the first safety hook (4) to pull the arc-shaped pull plate (101), the arc-shaped pull plate (101) pulls the bottom of the linkage triangle plate (102) to make it move the movable clamping plate (104) upward, the movable clamping plate (104) works with the clamping seat (105) to clamp the cable and generate tension on the cable; S4. When the winding lever (201) rotates, it can drive the first end face ratchet (203) to rotate. The second end face ratchet (204) will not hinder the first end face ratchet (203) from rotating clockwise, but will prevent the first end face ratchet (203) from rotating counterclockwise. This prevents the winding lever (201) from rotating back after the handle (212) is unloaded. As the winding lever (201) continues to wind up the tension cable (217), it will eventually pull the cable and adjust its tension. S5. By observing the tension value through the digital display (302), you can know the tension of the cable adjustment. After reaching the required tension, stop turning the handle (212) clockwise and then fix the cable on the power crossarm. S6. After the cable is fixed, the hinge seat (215) is turned 90 degrees by turning it. The hinge seat (215) then pulls the limit bar (214). At this time, the second end ratchet (204) disengages from the first end ratchet (203), and then pulls the taut tension cable (217) to drive the winding bar (201) to rotate in the opposite direction. In this way, the tension cable (217) can be extended again. S7. Remove the safety hook of the lasso (219) from the capsule-shaped collar of the connecting plate (218), then separate the lasso (219) from the power crossarm, and finally lift the cable baffle (109). The movable clamping plate (104) and the clamping seat (105) automatically separate the cable, thereby removing the cable fixing assembly (1) and completing the entire cable tension adjustment operation.

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