A system for measuring the degree of bending of an overhead line
By designing a fixed operating frame and combined ropes, and combining laser ranging and distance measurement, the problem of positional deviation caused by wind and terrain in the measurement of overhead line curvature was solved, achieving efficient and accurate curvature measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOHUI CABLE GRP CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, the measurement of the curvature of overhead lines is affected by wind and terrain, which causes the measurement position to shift, affecting measurement efficiency and accuracy.
The measurement system, consisting of a fixed operating frame, a collecting motor, a laser rangefinder, electric anti-slip wheels, and limit components, forms a triangular measurement structure by raising and lowering the rope and adjusting the position of the support frame. Combined with laser ranging and distance measurement, it achieves stable measurement of the curvature of overhead lines.
It effectively solved the problem of measurement position offset, improved the accuracy and efficiency of measurement, and ensured the stability and precision of measurement results.
Smart Images
Figure CN224535594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of overhead line technology, specifically to an overhead line curvature measurement system. Background Technology
[0002] Overhead lines mainly refer to open overhead lines, which are erected above the ground. They are power transmission lines that use insulators to fix the transmission conductors to towers that stand upright on the ground to transmit electrical energy. They are relatively easy to erect and maintain, and have lower costs. The curvature of an overhead line usually refers to the degree of sag of the conductor between suspension points, also known as sag. It is a key parameter in the design of power transmission lines and directly affects the mechanical safety and electrical performance of the conductors.
[0003] However, when measuring the curvature of overhead lines, most measurements are taken using ground-based laser ranging and tension sensors. During the measurement process, the overhead lines are affected by wind and terrain, which can easily lead to positional shifts during multi-location measurements, affecting both the efficiency and accuracy of the measurement. Utility Model Content
[0004] This invention provides a system for measuring the curvature of overhead power lines, which can effectively solve the problem mentioned in the background art that when measuring the curvature of overhead power lines, most of them are measured by ground laser ranging and tension sensor ranging. During the measurement process, the overhead power lines are affected by wind and terrain, which can easily cause positional deviations during multi-location measurements, affecting both the efficiency and accuracy of the measurement.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a bending measurement system for overhead power lines, comprising a fixed operating frame, wherein the fixed operating frame is provided with an operating component, and the operating component includes a collecting motor; Both ends of the fixed operating frame are equipped with collecting motors via motor mounts. The output shaft of the collecting motor is snapped with a take-up frame, and a moving rope is wound around the side of the take-up frame. A positioning electric slide rail is installed on one end of the inner side of the fixed operating frame, and a laser rangefinder is connected to one end of the positioning electric slide rail through a slide rail seat. One end of the moving rope is equipped with a locking support frame, and one end of the locking support frame is embedded with a locking electric slide rail. One end of the locking electric slide rail is locked with an electric anti-slip wheel. A distance measuring instrument is snapped into the inner side of the snap-fit support frame, and a support fixing frame is installed on the side end of one of the snap-fit support frames by a fixing pin. A lifting electric push rod is snapped into the inner side of the support frame, and a distance measuring linkage plate is installed at the top of the lifting electric push rod.
[0006] According to the above technical solution, the take-up frame is rotatably installed inside the fixed operating frame, and the two locking support frames are hinged together.
[0007] According to the above technical solution, one end of the two locking support frames is connected by a fixed pin, and the electric anti-slip wheel is rotated and slidably installed inside the locking support frame.
[0008] According to the above technical solution, the support fixing frame is snap-fitted onto the side end of the snap-fit support frame; The input terminals of the collecting motor, the alignment electric slide rail, the laser rangefinder, the locking electric slide rail, the electric anti-slip wheel, and the distance measuring instrument are all electrically connected to the output terminal of the external power supply via a switch.
[0009] According to the above technical solution, a limit component is provided on the side of the fixed operating frame, and the limit component includes a limit motor; Both ends of the fixed operating frame are equipped with limit motors via motor mounts. The output shaft of the limit motor is engaged with the limit collection frame. A stabilizing rope is wound around the side end of the limit collection frame. One end of the stabilizing rope is rotatably connected to an external threaded fixing block, and both ends of one of the locking support frames are equipped with internal threaded blocks. A tensioning / loosening frame is equidistantly installed at one end of the fixed operating frame. A tensioning / loosening frame is installed on the inner side of the tensioning / loosening frame. A tensioning / loosening moving block is installed at one end of the tensioning / loosening frame via a slide rail seat.
[0010] According to the above technical solution, the stabilizing rope is fitted and connected to the tension-relaxation moving block; The input terminals of the limit motor and the processing electric slide rail are both electrically connected to the output terminal of the external power supply via a switch.
[0011] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use. 1. Equipped with an operating component, the electric anti-slip wheel and locking support frame are snapped onto the side of the overhead line. Fixed pins then secure the support frame and lifting electric push rod to the side of the locking support frame, enabling rapid assembly and limiting of the equipment. The alignment electric slide rail moves the laser rangefinder, while the lifting electric push rod raises the ranging linkage plate, enabling laser ranging via device movement. A collecting motor drives the take-up frame to tighten and loosen the moving rope, providing stable support and locking for the equipment. A distance measuring instrument measures the distance moved by the electric anti-slip wheel. Simultaneously, the rising distance of the lifting electric push rod forms a triangle, allowing for the measurement of the overhead line's sinking and bending dimensions. This effectively solves the problem of measurement position deviation caused by wind affecting the overhead line during testing, achieving accurate alignment measurement, reducing significant deviations due to positional shifts, and improving measurement efficiency and accuracy.
[0012] 2. A limit component is installed, which connects the external threaded fixing block and the internal threaded processing block to fix the stabilizing rope to the bottom of the clamping support frame. The limit motor drives the limit collection frame to pull the stabilizing rope in and out. The processing electric slide rail drives the tension moving block to move the stabilizing rope and change its tension. By pulling at different sizes at the bottom, the position and deflection of the clamping support frame are corrected to achieve stable positioning. During the measurement process, the angle of the device can be corrected according to the swing amplitude of the overhead line and the movement position of the device, ensuring the accuracy and efficiency of the measurement. Attached Figure Description
[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0014] 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 structure of the operating components of this utility model; Figure 3 This is a schematic diagram of the installation structure of the distance measuring instrument of this utility model; Figure 4 This is a schematic diagram of the structure of the limiting component of this utility model; Numbered in the diagram: 1. Fixed operating frame; 2. Operating components; 201. Collecting motor; 202. Cable take-up frame; 203. Moving rope; 204. Alignment electric slide rail; 205. Laser rangefinder; 206. Engaging support frame; 207. Engaging electric slide rail; 208. Electric anti-slip wheel; 209. Distance measuring instrument; 210. Fixing pin; 211. Support frame; 212. Lifting electric push rod; 213. Distance measuring linkage plate; 3. Limiting components; 301. Limiting motor; 302. Limiting collection rack; 303. Stabilizing rope; 304. External thread fixing block; 305. Internal thread processing block; 306. Tensioning rack; 307. Processing electric slide rail; 308. Tensioning moving block. Detailed Implementation
[0015] 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.
[0016] Example: Figure 1-4As shown, this utility model provides a technical solution: a bending measurement system for overhead power lines, including a fixed operating frame 1. The fixed operating frame 1 is equipped with an operating component 2, which includes a collecting motor 201, a take-up frame 202, a moving rope 203, an alignment electric slide rail 204, a laser rangefinder 205, a locking support frame 206, a locking electric slide rail 207, an electric anti-slip wheel 208, a distance measuring instrument 209, a fixing pin 210, a support fixing frame 211, a lifting electric push rod 212, and a distance measuring linkage plate 213. Both ends of the fixed operating frame 1 are equipped with a collecting motor 201 via a motor mount. The output shaft of the collecting motor 201 is snapped with a take-up frame 202. The take-up frame 202 is rotatably mounted inside the fixed operating frame 1 to achieve stable rotation positioning and support restriction. A movable rope 203 is wound around the side end of the take-up frame 202. One end of the fixed operating frame 1 is equipped with an alignment electric slide rail 204. One end of the alignment electric slide rail 204 is connected to a laser rangefinder 205 through a slide rail seat. One end of the moving rope 203 is equipped with a clamping support frame 206. The two clamping support frames 206 are hinged together. One end of the two clamping support frames 206 is connected by a fixing pin 210, which makes the operation of clamping, positioning and limiting the overhead line stable. One end of the inner side of the locking support frame 206 is embedded with a locking electric slide rail 207. One end of the locking electric slide rail 207 is connected to an electric anti-slip wheel 208. The electric anti-slip wheel 208 rotates and slides on the inner side of the locking support frame 206 to achieve steady rotation and movement alignment. A distance measuring instrument 209 is connected to the inner side of the locking support frame 206. One side end of the locking support frame 206 is equipped with a support fixing frame 211 by a fixing pin 210. The support fixing frame 211 is locked on the side end of the locking support frame 206 to achieve steady alignment support and alignment restriction. A lifting electric push rod 212 is snapped into the inner side of the support frame 211, and a distance measuring linkage plate 213 is installed at the top of the lifting electric push rod 212. To ensure stable operation of the equipment, the input terminals of the collecting motor 201, the alignment electric slide rail 204, the laser rangefinder 205, the locking electric slide rail 207, the electric anti-slip wheel 208, and the distance measuring instrument 209 are all electrically connected to the output terminal of the external power supply via a switch.
[0017] A limit component 3 is provided on the side of the fixed operation frame 1. The limit component 3 includes a limit motor 301, a limit collection frame 302, a stabilizing treatment rope 303, an external thread fixing block 304, an internal thread treatment block 305, a tension / strain treatment frame 306, a treatment electric slide rail 307, and a tension / strain moving block 308. Both ends of the fixed operation frame 1 are equipped with limit motors 301 via motor mounts. The output shaft of the limit motor 301 is snapped into the limit collection frame 302. The side end of the limit collection frame 302 is wrapped with a stabilizing rope 303. One end of the stabilizing rope 303 is rotatably connected to an external threaded fixing block 304. Both ends of one of the locking support frames 206 are equipped with internal threaded processing blocks 305. One end of the fixed operating frame 1 is equidistantly equipped with a tensioning frame 306. A processing electric slide rail 307 is installed inside the tensioning frame 306. One end of the processing electric slide rail 307 is equipped with a tensioning moving block 308 through a slide rail seat. The stabilizing rope 303 is fitted and connected to the tensioning moving block 308 to steadily control the tension of the stabilizing rope 303 and ensure the stability of the component's limiting support and positioning restriction. To ensure stable operation of the equipment, the input terminals of the limit motor 301 and the handling electric slide rail 307 are electrically connected to the output terminal of the external power supply via a switch.
[0018] The working principle and usage process of this utility model are as follows: When measuring the curvature of an overhead line, the operator attaches the fixed operating frame 1 to the transmission frame using fixing pins 210, attaches the side ends of two electric anti-slip wheels 208 to the side ends of the overhead line, and uses fixing pins 210 to connect two clamping support frames 206. Using the external threaded fixing block 304 and the internal threaded processing block 305, the stabilizing processing rope 303 is fixed to the bottom of the side end of the clamping support frame 206 through a threaded combination. The fixing pins 210 are then used to secure the rope. 10. The support frame 211 and the lifting electric push rod 212 are fixedly installed on the side of the locking support frame 206 to realize the multi-position connection processing of the equipment. The laser rangefinder 205 is driven by the alignment electric slide rail 204 to move along the fixed operating frame 1. The position of the laser rangefinder 205 is adjusted according to the location of the overhead line. The laser rangefinder 205 emits a laser, and the lifting electric push rod 212 drives the distance measuring linkage plate 213 to rise. The laser is emitted onto the surface of the distance measuring linkage plate 213 to realize the distance measurement of the moving position of the measuring component. The collecting motor 201 drives the take-up frame 202 to tighten and loosen the moving rope 203. At this time, the locking electric slide rail 207 drives the electric anti-slip wheel 208 to move along the locking support frame 206, so that the electric anti-slip wheel 208 can steadily clamp and engage the overhead line. The electric anti-slip wheel 208 drives the locking support frame 206 to move along the overhead line. During the movement of the locking support frame 206, it moves down along the overhead line. At this time, the lifting electric push rod 212 drives the distance measuring linkage plate 213 to rise continuously. The laser rangefinder 205 measures the distance between the fixed operating frame 1 and the distance measuring linkage plate 213. The distance measuring instrument 209 measures the distance moved by the electric anti-slip wheel 208. Together with the distance of the lifting electric push rod 212, a triangle is formed to measure the size of the overhead line sinking and bending, calculate its bending degree, and thus measure its bending amplitude. When the locking support frame 206 moves, the limit motor 301 drives the limit collection frame 302 to rotate along the fixed operating frame 1, pulling the stabilizing rope 303 to be wound up and down along the limit collection frame 302. At this time, the processing electric slide rail 307 drives the tensioning moving block 308 to push the stabilizing rope 303 to move along the tensioning frame 306, changing the tension of the stabilizing rope 303, thereby correcting the position and deflection of the locking support frame 206, achieving steady positioning and ensuring the stability of the measurement movement.
[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A system for measuring the curvature of an overhead power line, comprising a fixed operating frame (1), characterized in that: The fixed operating frame (1) is provided with an operating component (2), which includes a collecting motor (201). The fixed operating frame (1) has a collecting motor (201) installed at both ends via a motor mount. The output shaft of the collecting motor (201) is connected to a take-up frame (202), and a moving rope (203) is wound around the side of the take-up frame (202). The fixed operating frame (1) has an alignment electric slide rail (204) installed on one end of its inner side, and a laser rangefinder (205) is connected to one end of the alignment electric slide rail (204) through a slide rail seat. One end of the moving rope (203) is equipped with a locking support frame (206), and one end of the locking support frame (206) is embedded with a locking electric slide rail (207). One end of the locking electric slide rail (207) is connected to an electric anti-slip wheel (208). The inner side of the locking support frame (206) is fitted with a distance measuring instrument (209), and a support fixing frame (211) is installed on the side end of one of the locking support frames (206) by a fixing pin (210). The inner side of the support frame (211) is fitted with a lifting electric push rod (212), and a distance measuring linkage plate (213) is installed at the top of the lifting electric push rod (212).
2. The overhead line curvature measurement system according to claim 1, characterized in that, The take-up frame (202) is rotatably mounted inside the fixed operating frame (1), and the two locking support frames (206) are hinged together.
3. The overhead line curvature measurement system according to claim 1, characterized in that, The two locking support frames (206) are connected at one end by a fixing pin (210), and the electric anti-slip wheel (208) is rotated and slidably installed on the inside of the locking support frame (206).
4. The overhead line curvature measurement system according to claim 1, characterized in that, The support fixing frame (211) is snapped onto the side end of the snap-fit support frame (206); The input terminals of the collecting motor (201), the alignment electric slide rail (204), the laser rangefinder (205), the locking electric slide rail (207), the electric anti-slip wheel (208), and the distance measuring instrument (209) are all electrically connected to the output terminal of the external power supply via a switch.
5. The overhead line curvature measurement system according to claim 1, characterized in that, The fixed operating frame (1) is provided with a limit component (3) on its side, and the limit component (3) includes a limit motor (301). Both ends of the fixed operating frame (1) are equipped with limit motors (301) via motor mounts. The output shaft of the limit motor (301) is snapped into a limit collection frame (302). A stabilizing rope (303) is wound around the side end of the limit collection frame (302). One end of the stabilizing rope (303) is rotatably connected to an external threaded fixing block (304), and both ends of one of the locking support frames (206) are equipped with internal threaded processing blocks (305). The fixed operating frame (1) is equipped with a tensioning and loosening frame (306) at one end at equal intervals. The tensioning and loosening frame (306) is equipped with a processing electric slide rail (307) on the inner side. The tensioning and loosening slide rail (307) is equipped with a tensioning and loosening moving block (308) at one end through a slide rail seat.
6. The overhead line curvature measurement system according to claim 5, characterized in that, The stabilizing rope (303) is fitted and connected to the tensioning moving block (308); The input terminals of the limit motor (301) and the processing electric slide rail (307) are both electrically connected to the output terminal of the external power supply via a switch.