An image acquisition device for power line inspection

Abstract

This invention relates to the field of power line inspection technology and discloses an image acquisition device for power line inspection, including a robot dog. A camera mounting bracket is fixedly connected to the bottom of the robot dog. A camera is rotatably connected to the inner front side of the camera mounting bracket. The camera includes a camera holder, and a lens retraction mechanism is fixedly connected to the bottom front side of the camera holder. The camera holder includes a camera support block, and L-shaped side plates are fixedly connected to the top of both sides of the camera support block. A visible light camera is fixedly connected to the top of the camera support block. This invention, through the inclusion of a robot dog, a camera mounting bracket, and a camera, and the precise adjustment and stable clamping of the lens position, effectively improves the accuracy and stability of image acquisition during power line inspection. Driven by a power component, and through the precise cooperation of the lead screw and transmission shaft, flexible adjustment of the lens's near and far fields of view is achieved, ensuring the accuracy of the inspection results.

Description

Technical Field

[0001] This invention relates to the field of power line inspection technology, and in particular to an image acquisition device for power line inspection. Background Technology

[0002] Power line inspection refers to the regular inspection and maintenance of various equipment in a power system. This process is crucial because it directly relates to the normal operation and safe and stable operation of the power system. During power line inspections, inspectors must meticulously observe and record all electrical equipment to promptly identify potential problems and take swift action to prevent them from escalating and affecting power supply. However, traditional power line inspections rely primarily on manual labor. While this method can accomplish the task to some extent, its efficiency is relatively low and it is susceptible to human factors, such as fatigue, negligence, or lack of experience among inspectors, which can lead to inaccurate results. Therefore, with continuous technological advancements and innovation, more and more power line inspections are shifting towards automated and intelligent image acquisition devices. These advanced technologies not only significantly improve inspection efficiency but also enhance accuracy, thus providing a stronger guarantee for the stable operation of the power system.

[0003] According to patent document CN206260019U, a power line inspection image acquisition device is disclosed, which internally includes an infrared camera unit and a control circuit board. The infrared camera unit includes a base fixed inside the image acquisition device, a first infrared lens fixedly mounted on the base, and an image acquisition device body. A second infrared lens is located between the first infrared lens and the image acquisition device body and is movably mounted on the same axis as the first infrared lens. The base is also provided with a drive mechanism and a rotation mechanism. The drive mechanism drives the second infrared lens connected to the rotation mechanism to rotate away from the axis to change the far field of view or near field of view of the image acquisition device. The control circuit board is electrically connected to the drive mechanism. The helicopter-borne image acquisition device changes the infrared lens to realize the far field of view or near field of view of the image acquisition device, which is convenient for better imaging of the fault point of the fault line.

[0004] During power distribution network inspections, robotic cameras are often used as an advanced technological tool. These cameras are equipped with thermal imagers to observe and measure abnormal thermal phenomena in electrical components. This helps to promptly identify potential faults, facilitating maintenance and eliminating safety hazards. Because there is a certain distance between the robotic camera and the inspected power grid, the infrared imager's lens needs to be adjusted for near and far fields of view to ensure accurate results. Traditional robotic cameras typically switch between near and far fields of view by extending and retracting the lens. However, this design has some problems in practice. When the robotic camera operates at high altitudes, the lens's stability is difficult to guarantee during extension and retraction. Due to wind and other external factors, the lens may shake, resulting in blurred images and severely impacting the effectiveness and quality of the inspection. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an image acquisition device for power line inspection. The technical problem to be solved by the present invention is that the traditional robot dog camera usually achieves the change of near and far field of view by extending and retracting the lens. However, when the lens is extended and retracted, the lens stability cannot be guaranteed when working at high altitudes. It is easily affected by external factors such as wind, resulting in blurred images and affecting the inspection effect.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] An image acquisition device for power line inspection includes a robot dog, a camera mounting bracket fixedly connected to the bottom of the robot dog, and a camera rotatably connected to the inner side of the front of the camera mounting bracket.

[0008] The camera includes a camera bracket, and a lens retraction mechanism is fixedly connected to the bottom front side of the camera bracket.

[0009] The camera bracket includes a camera support block, with L-shaped side plates fixedly connected to the top of both the left and right sides of the camera support block, and a visible light camera fixedly connected to the top of the camera support block.

[0010] As a further aspect of the present invention: a lens is fixedly connected to the front side of the visible light camera, sliding rods are fixedly connected to the bottom of both sides of the camera support block, sliding rods are slidably connected to the inner walls of the two sliding rods, abutments are fixedly connected to the front sides of the two sliding rods, L-shaped connecting blocks are fixedly connected to the bottom of the two abutments, and the tops of the two abutments are beveled.

[0011] As a further embodiment of the present invention: lens elongation and stabilization mechanisms are fixedly connected to both the left and right sides of the front side of the camera support block.

[0012] As a further embodiment of the present invention: both of the lens elongation and stabilization mechanisms include long rods, the rear sides of the two long rods are fixedly connected to the left and right sides of the front side of the camera support block, the front and rear sides of the top of the two long rods are fixedly connected to hinge blocks, the inner sides of the left and right sets of hinge blocks are rotatably connected to clamping plate rotating blocks, and the tops of the two clamping plate rotating blocks are fixedly connected to clamping plates.

[0013] As a further embodiment of the present invention: a push-pull block is fixedly connected to the bottom of each of the two clamping plates, a push-pull block groove is provided on one side of each of the two push-pull blocks, a columnar crossbar is slidably connected to the inner wall of the push-pull block groove of each of the two push-pull blocks, and a columnar crossbar push-pull rod is fixedly connected to the front and rear ends of each of the two columnar crossbars.

[0014] As a further aspect of the present invention: the bottom of each of the two columnar crossbar push-pull rods is fixedly connected with a second abutment block, the bottom of each of the two second abutment blocks is opened on the opposite cross-section of the top of the two abutment blocks, and the bottom of each of the two second abutment blocks is in contact with the top of the two abutment blocks.

[0015] As a further aspect of the present invention: the lens retraction mechanism includes a retraction control component, and a lens connection component is provided on the front side of the retraction control component.

[0016] As a further aspect of the present invention: the retraction control assembly includes a power element, the rear side of which is fixedly connected to the front middle of the camera support block, the outer wall of which is fixedly connected to a connecting rod in an annular array, the front side of which is fixedly connected to a sliding plate, the front middle of which is rotatably connected to a lead screw, the front end of which is rotatably connected to the rear middle of the sliding plate, the outer wall of which is provided with through holes in an annular array, the rear side of which is provided with guide grooves in an annular array, and the multiple through holes extending to the inner wall of the guide grooves.

[0017] As a further aspect of the present invention: the inner walls of the multiple through holes opened in the slide plate are slidably connected with expansion and contraction rods, the inner ends of the multiple expansion and contraction rods extend to the inner walls of the multiple guide grooves opened in the slide plate and are fixedly connected with expansion and contraction blocks, the outer walls of the multiple expansion and contraction blocks are slidably connected to the inner walls of the multiple guide grooves opened in the slide plate, and the rear sides of the multiple expansion and contraction blocks are rotatably connected with bidirectional hinge rods.

[0018] As a further aspect of the present invention: the lens connecting assembly includes a drive shaft, the inner wall of which is threadedly connected to the outer wall of a lead screw, and an L-shaped connecting rods are fixedly connected to the outer wall of the drive shaft in an annular array. A sleeve is fixedly connected to the inner wall of a plurality of L-shaped connecting rods, and the inner wall of the sleeve is slidably connected to the outer wall of a sliding groove. A push-pull plate is fixedly connected to the front side of the sleeve, and a lens connecting groove is formed at the top front side of the push-pull plate. The inner wall of the lens connecting groove is fixedly connected to the front side of the outer wall of the lens. Both sides of the bottom of the outer wall of the push-pull plate are fixedly connected to the inner sides of two L-shaped connecting blocks. The front annular array of the drive shaft is rotatably connected to the rear side of a plurality of bidirectional hinge rods.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention, by incorporating a robotic dog, a camera connector, and a camera, achieves precise adjustment and stable clamping of the lens position during power inspections. This is crucial because it directly impacts the accuracy and stability of image acquisition. Driven by a power component, the precise coordination of the lead screw and transmission shaft enables flexible adjustment of the lens's near and far fields of view, ensuring the accuracy of the inspection results. Furthermore, the linkage mechanism of the bidirectional hinge rod, the expansion / retraction block, and the expansion / retraction column effectively limits and fixes the sleeve and lens, further enhancing the precision and stability of lens adjustment. The high resolution and dynamic range of the visible light camera enable the capture of clear and accurate images under various lighting conditions, providing valuable on-site information for inspection personnel. The lens stabilizing clamping mechanism effectively prevents lens shaking during use, extending the lens's lifespan and improving the efficiency and accuracy of power inspections. In summary, this power inspection image acquisition device, through a series of ingenious designs, achieves precise lens position adjustment, stable clamping, and high-quality image acquisition, providing strong support for the safe and stable operation of the power system. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main three-dimensional structure of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the camera connector and camera of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional separation structure of the camera connector and the camera according to the present invention;

[0024] Figure 4 This is a schematic diagram of the camera's three-dimensional separation structure according to the present invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional separation structure of the camera bracket of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the lens elongation and stabilization mechanism of the present invention;

[0027] Figure 7 This is a schematic diagram of the three-dimensional separation structure of the lens retraction mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the three-dimensional separation structure of the pull-up control component of the present invention;

[0029] Figure 9 This is a schematic diagram of the three-dimensional separation structure of the lens connection assembly of the present invention.

[0030] In the diagram: 1. Robot dog; 2. Camera connecting bracket; 3. Camera; 31. Camera bracket; 311. Camera support block; 312. L-shaped side plate; 313. Sliding rod; 314. Sliding rod; 315. Support block; 316. L-shaped connecting block; 317. Visible light camera; 318. Lens; 319. Lens extension and stabilization mechanism; 3191. Long bar; 3192. Hinge block; 3193. Clamping plate rotating block; 3194. Clamping plate; 3195. Push-pull block; 3196. Push-pull block sliding groove; 3197. Columnar crossbar; 31 98. Columnar crossbar push-pull rod; 3199. Second abutment block; 32. Lens retraction / pull mechanism; 321. Retraction / pull control assembly; 3211. Power element; 3212. Connecting rod; 3213. Sliding groove plate; 3214. Lead screw; 3215. Through hole; 3216. Guide groove; 3217. Retraction / expansion column rod; 3218. Retraction / expansion block; 3219. Two-way hinge rod; 322. Lens connection assembly; 3221. Drive shaft; 3222. L-shaped connecting rod; 3223. Sleeve; 3224. Push-pull plate; 3225. Lens connection groove. Detailed Implementation

[0031] 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.

[0032] like Figure 1 As shown, the present invention provides an image acquisition device for power line inspection, including a robot dog 1, a camera mounting bracket 2 fixedly connected to the bottom of the robot dog 1, and a camera 3 rotatably connected to the inner side of the front side of the camera mounting bracket 2.

[0033] like Figure 2-9As shown, the camera 3 includes a camera bracket 31. A lens retraction mechanism 32 is fixedly connected to the bottom front side of the camera bracket 31. The camera bracket 31 includes a camera support block 311. L-shaped side plates 312 are fixedly connected to the top of both sides of the camera support block 311. A visible light camera 317 is fixedly connected to the top of the camera support block 311. A lens 318 is fixedly connected to the front side of the visible light camera 317. Sliding rods 313 are fixedly connected to the bottom of both sides of the camera support block 311. Sliding rods 314 are slidably connected to the inner walls of both sliding rods 313. A stop block 315 is fixedly connected to the front side of both sliding rods 314. An L-shaped connecting block 316 is fixedly connected to the bottom of both stop blocks 315. The top of each support block 315 is beveled. Lens extension and stabilizing mechanisms 319 are fixedly connected to the left and right sides of the front of the camera support block 311. Each lens extension and stabilizing mechanism 319 includes a long rod 3191. The rear sides of the two long rods 3191 are fixedly connected to the left and right sides of the front of the camera support block 311. Hinge blocks 3192 are fixedly connected to the front and rear sides of the top of the two long rods 3191. Clamping plate rotating blocks 3193 are rotatably connected to the inner sides of the left and right sets of hinge blocks 3192. Clamping plates 3194 are fixedly connected to the top of the two clamping plate rotating blocks 3193. Push-pull blocks 3195 are fixedly connected to the bottom of the two clamping plates 3194. Push-pull blocks are provided on one side of each of the two push-pull blocks 3195. The inner walls of the sliding grooves 3196 of the two push-pull blocks 3195 are slidably connected to columnar crossbars 3197. The front and rear ends of the two columnar crossbars 3197 are fixedly connected to columnar crossbar push-pull rods 3198. The bottoms of the two columnar crossbar push-pull rods 3198 are fixedly connected to second abutments 3199. The bottoms of the two second abutments 3199 are formed on opposite cut surfaces to the tops of the two abutments 315, and the bottoms of the two second abutments 3199 are in contact with the tops of the two abutments 315. The lens retraction mechanism 32 includes a retraction control assembly 321. A lens connecting assembly 322 is provided on the front side of the retraction control assembly 321. The retraction control assembly 321 includes a power element 3211. The rear side of the power element 3211 is fixedly connected to the middle of the front side of the camera support block 311. A connecting rod 3212 is fixedly connected to the outer wall of the power element 3211 in a ring array. A sliding plate 3213 is fixedly connected to the front side of multiple connecting rods 3212. A lead screw 3214 is rotatably connected to the middle of the front side of the power element 3211. The front end of the lead screw 3214 is rotatably connected to the middle of the rear side of the sliding plate 3213. Through holes 3215 are formed in a ring array on the outer wall of the sliding plate 3213. A guide groove 3216 is formed in a ring array on the rear side of the sliding plate 3213. Multiple through holes 3215 penetrate to the inner wall of the guide groove 3216. Expanding and contracting rods 3217 are slidably connected to the inner walls of the multiple through holes 3215 formed by the sliding plate 3213.The inner ends of multiple expanding and contracting rods 3217 extend to the inner walls of multiple guide grooves 3216 opened in the slide plate 3213 and are all fixedly connected to expanding and contracting blocks 3218. The outer walls of multiple expanding and contracting blocks 3218 are slidably connected to the inner walls of multiple guide grooves 3216 opened in the slide plate 3213. The rear sides of multiple expanding and contracting blocks 3218 are rotatably connected to bidirectional hinge rods 3219. The lens connecting assembly 322 includes a drive shaft 3221. The inner wall of the drive shaft 3221 is threaded to the outer wall of the lead screw 3214. The outer wall of the drive shaft 3221 is fixedly connected to L-shaped connecting rods 3222 in a ring array. Multiple L-shaped connecting rods 3222 have sleeves 3223 fixedly connected to their inner walls. The inner walls of the sleeves 3223 are slidably connected to the outer walls of the sliding plate 3213. A push-pull plate 3224 is fixedly connected to the front side of the sleeves 3223. A lens connecting groove 3225 is formed on the top front side of the push-pull plate 3224. The inner wall of the lens connecting groove 3225 is fixedly connected to the front side of the outer wall of the lens 318. Both sides of the bottom of the outer wall of the push-pull plate 3224 are fixedly connected to the inner sides of two L-shaped connecting blocks 316. The front side of the drive shaft 3221 is rotatably connected to the rear side of multiple bidirectional hinge rods 3219 in a circular array.

[0034] When inspecting power facilities, to ensure the accuracy of the test results, we often need to adjust the near and far fields of view of the lens. This can be achieved by activating the power element 3211. Once activated, the output of the power element 3211 drives the lead screw 3214 to rotate. As the lead screw 3214 rotates, the threaded transmission principle kicks in, driving the transmission shaft 3221 forward. During this forward movement, the transmission shaft 3221 sequentially drives the L-shaped connecting rod 3222 and the sleeve 3223 forward. The sleeve 3223, in turn, pushes the push-pull plate 3224 forward. This, in turn, pulls the lens 318 within the lens connecting groove 3225 forward. This series of mechanical actions ultimately adjusts the position of the lens 318, allowing the device to adjust the near and far fields of view of the lens 318 according to the actual distance between the object being inspected and the device, thus significantly improving the accuracy of the test results.

[0035] Simultaneously, as the drive shaft 3221 moves forward, it also causes multiple bidirectional hinge rods 3219 to rotate. During this rotation, the bidirectional hinge rods 3219 guide the expansion block 3218 to slide on the inner wall of the guide groove 3216. As the expansion block 3218 slides, it pushes the expansion rod 3217 to slide on the inner wall of the through hole 3215. When the expansion rod 3217 slides and expands outward, it locks onto the inner wall of the sleeve 3223, thus achieving a limiting and fixing effect on the sleeve 3223. This mechanism further improves the accuracy and stability of lens 318 adjustment.

[0036] Furthermore, the visible light camera 317 is a device that captures images within the visible spectrum, enabling it to clearly capture images of power facilities and their surrounding environment. During power inspections, the visible light camera 317 plays a crucial role, capturing real-time images of key equipment such as power lines, transformers, and switches, providing inspection personnel with intuitive and accurate on-site information. By analyzing the captured images, inspection personnel can promptly identify equipment defects and potential hazards, thereby taking corresponding maintenance measures to ensure the safe and stable operation of the power system. In addition, the visible light camera 317 also boasts high resolution and dynamic range, maintaining image clarity and color reproduction under different lighting conditions, further improving the efficiency and accuracy of power inspections.

[0037] When the push-pull plate 3224 moves forward, pulling the lens 318 to extend, this action triggers a series of precise mechanical linkages. At this time, the movement of the push-pull plate 3224 is not limited to itself; it also drives two L-shaped connecting blocks 316. These two connecting blocks are connected to the push-pull plate 3224, and their movement directly affects the position of the abutment block 315. During the movement, the abutment block 315 slides smoothly along the inner wall of the slide bar 313. This process ensures smooth and precise movement. At the same time, the abutment block 315... The beveled surface of the part is cleverly designed so that it contacts the cut surface at the bottom of the second abutment 3199. This contact is not a simple collision, but a carefully designed contact method that generates effective compressive force. This compressive force allows the second abutment 3199 to effectively drive the columnar crossbar push-pull rod 3198 to move accordingly after being subjected to force. During the movement, the push-pull rod 3198 drives another columnar crossbar 3197 to slide on the inner wall of the push-pull block groove 3196. This series of sliding actions ensures the entire... With the smooth operation of the mechanical structure, the push-pull block 3195 moves under the impetus of this series of actions. The movement of the push-pull block 3195, in turn, causes the clamping plate 3194 to rotate. During this rotation, the clamping plate 3194 gradually approaches the middle section of the lens 318 until its inner wall is tightly fitted against the outer wall of the middle section of the lens 318. This achieves a stable clamping effect on the extended lens 318. This clamping not only ensures the stability of the lens 318 during use but also prevents lens wobbling. This design not only improves the stability and lifespan of the lens 318, but also reverses the entire process when the push-pull plate 3224 moves backward, causing the lens 318 to shorten. The stop block 315 also moves backward, at which point the squeezing force between the second stop block 3199 and the stop block 315 gradually decreases until the clamping plate 3194 releases the lens 318, allowing the lens 318 to shorten smoothly. This design ensures that the extension and retraction operation of the lens 318 is both convenient and reliable, providing great convenience to users.

[0038] Working principle of this invention: When the near and far fields of view of the lens are needed to improve the accuracy of the detection results, the power element 3211 is activated. The output end of the power element 3211 drives the lead screw 3214 to rotate. During the rotation of the lead screw 3214, the drive shaft 3221 is moved forward using the thread transmission principle. During the forward movement of the drive shaft 3221, the L-shaped connecting rod 3222 and the sleeve 3223 are moved forward. During the forward movement of the sleeve 3223, the push-pull plate 3224 is moved forward. During the forward movement of the push-pull plate 3224, the lens 318 in the lens connecting groove 3225 is stretched forward, thereby achieving the effect of adjusting the position of the lens 318. This device can adjust the near and far fields of view of the lens 318 according to the distance between the object being detected and the device, thereby improving the accuracy of the detection results. Simultaneously, as the drive shaft 3221 moves forward, it also drives multiple bidirectional hinge rods 3219 to rotate. During rotation, the bidirectional hinge rods 3219 cause the expanding / contracting block 3218 to slide against the inner wall of the guide groove 3216. As the expanding / contracting block 3218 slides, it causes the expanding / contracting column rod 3217 to slide against the inner wall of the through hole 3215. After expanding outwards, the expanding / contracting column rod 3217 then locks against the inner wall of the sleeve 3223, achieving a limiting and fixing effect on the sleeve 3223, further improving the precision and stability of the lens 318 adjustment. Additionally, visible light... Camera 317 is a device capable of capturing images within the visible spectrum. Mounted at the front end of the unit, this well-designed visible light camera 317 clearly captures images of power facilities and their surrounding environment. During power inspections, the visible light camera 317 plays a crucial role, capturing real-time images of key equipment such as power lines, transformers, and switches, providing inspectors with intuitive and accurate on-site information. By analyzing the captured images, inspectors can promptly identify equipment defects and potential hazards, enabling them to take appropriate maintenance measures and ensure the safe and stable operation of the power system. Furthermore, the visible light camera 317 possesses high resolution and dynamic range, maintaining image clarity under varying lighting conditions. The improved accuracy and color reproduction further enhance the efficiency and accuracy of power line inspection. When the push-pull plate 3224 moves forward and pulls the lens 318 to extend, the movement of the push-pull plate 3224 drives the two L-shaped connecting blocks 316 to pull the abutment block 315. During the movement, the abutment block 315 slides along the inner wall of the slide bar 313. At the same time, the beveled surface at the top of the abutment block 315 contacts the cut surface at the bottom of the second abutment block 3199 and generates a squeezing force. This force causes the second abutment block 3199 to move the columnar crossbar push-pull rod 3198. During the movement, the columnar crossbar push-pull rod 3198 drives the columnar crossbar 3197 to slide along the inner wall of the push-pull block slide groove 3196, thereby pushing the push-pull block 3195 to move.During its movement, the push-pull block 3195 causes the clamping plate 3194 to rotate. As it rotates, the clamping plate 3194 gradually approaches the middle section of the lens 318 until its inner wall is tightly fitted against the outer wall of the middle section of the lens 318. This achieves a stable clamping effect on the extended lens 318, preventing it from wobbling during use and further improving its stability and lifespan.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An image acquisition device for power line inspection, characterized in that: The robot dog (1) is fixedly connected to the bottom of the robot dog (1), and a camera (3) is rotatably connected to the inner side of the front side of the camera connecting frame (2). The camera (3) includes a camera bracket (31), and a lens retraction mechanism (32) is fixedly connected to the bottom front side of the camera bracket (31). The camera bracket (31) includes a camera support block (311), and L-shaped side plates (312) are fixedly connected to the top of both the left and right sides of the camera support block (311). A visible light camera (317) is fixedly connected to the top of the camera support block (311). The lens retraction mechanism (32) includes a retraction control component (321). A lens connecting component (322) is provided on the front side of the retraction control component (321). The retraction control component (321) includes a power element (3211). The rear side of the power element (3211) is fixedly connected to the front middle of the camera support block (311). Connecting rods (3212) are fixedly connected to the outer wall of the power element (3211) in a ring array. The front of the multiple connecting rods (3212) A sliding plate (3213) is fixedly connected to the side. A lead screw (3214) is rotatably connected to the front middle of the power element (3211). The front end of the lead screw (3214) is rotatably connected to the rear middle of the sliding plate (3213). Through holes (3215) are opened in an annular array on the outer wall of the sliding plate (3213). Guide grooves (3216) are opened in an annular array on the rear side of the sliding plate (3213). Multiple through holes (3215) penetrate to the inner wall of the guide grooves (3216). The left and right sides of the front of the camera support block (311) are fixedly connected with lens elongation and stabilization mechanisms (319). The lens connection assembly (322) includes a drive shaft (3221), the inner wall of which is threaded to the outer wall of a lead screw (3214). An L-shaped connecting rod (3222) is fixedly connected in a ring array to the outer wall of the drive shaft (3221). A sleeve (3223) is fixedly connected to the inner wall of multiple L-shaped connecting rods (3222). The inner wall of the sleeve (3223) is slidably connected to the outer wall of a sliding groove disc (3213). A push-pull plate (3224) is fixedly connected to the front side of the lens (318). A lens connection groove (3225) is opened on the top of the front side of the push-pull plate (3224). The inner wall of the lens connection groove (3225) is fixedly connected to the front side of the outer wall of the lens (318). The two sides of the bottom of the outer wall of the push-pull plate (3224) are fixedly connected to the inner side of two L-shaped connecting blocks (316). The front side of the drive shaft (3221) is rotatably connected to the rear side of multiple bidirectional hinge rods (3219) in a ring array.

2. The image acquisition device for power line inspection according to claim 1, characterized in that: The visible light camera (317) is fixedly connected to a lens (318) on the front side. The bottom of the left and right sides of the camera support block (311) is fixedly connected to a sliding rod (313). The inner walls of the two sliding rods (313) are slidably connected to a sliding rod (314). The front sides of the two sliding rods (314) are fixedly connected to a stop block (315). The bottom of the two stop blocks (315) is fixedly connected to an L-shaped connecting block (316). The top of the two stop blocks (315) is a beveled surface.

3. The image acquisition device for power line inspection according to claim 2, characterized in that: Both of the lens elongation and stabilization mechanisms (319) include long bars (3191). The rear sides of the two long bars (3191) are fixedly connected to the left and right sides of the front side of the camera support block (311). The front and rear sides of the top of the two long bars (3191) are fixedly connected to hinge blocks (3192). The inner sides of the left and right sets of hinge blocks (3192) are rotatably connected to clamping plate rotating blocks (3193). The top of the two clamping plate rotating blocks (3193) is fixedly connected to clamping plates (3194).

4. The image acquisition device for power line inspection according to claim 3, characterized in that: Push-pull blocks (3195) are fixedly connected to the bottom of both clamps (3194). Push-pull block grooves (3196) are opened on one side of both push-pull blocks (3195). Columnar crossbars (3197) are slidably connected to the inner walls of the push-pull block grooves (3196) opened on both push-pull blocks (3195). Columnar crossbar push-pull rods (3198) are fixedly connected to the front and rear ends of both columnar crossbars (3197).

5. The image acquisition device for power line inspection according to claim 4, characterized in that: The bottom of each of the two columnar crossbar push-pull rods (3198) is fixedly connected to a second abutment (3199). The bottom of each of the two second abutments (3199) is opened on the opposite cut surface of the top of the two abutments (315), and the bottom of each of the two second abutments (3199) is in contact with the top of the two abutments (315).

6. The image acquisition device for power line inspection according to claim 5, characterized in that: The inner walls of the multiple through holes (3215) opened in the slide plate (3213) are slidably connected with expansion and contraction rods (3217). The inner ends of the multiple expansion and contraction rods (3217) extend to the inner walls of the multiple guide grooves (3216) opened in the slide plate (3213) and are fixedly connected with expansion and contraction blocks (3218). The outer walls of the multiple expansion and contraction blocks (3218) are slidably connected to the inner walls of the multiple guide grooves (3216) opened in the slide plate (3213). The rear side of the multiple expansion and contraction blocks (3218) is rotatably connected with a bidirectional hinge rod (3219).

Images