Deployable platform and method for transmission line service condition detection

Abstract

The application discloses a deployable platform and a deploying method for power transmission line service state detection. The deployable platform comprises a mounting platform, at least two hinged seat bodies which are connected to each other and a first elastic member. The mounting platform is formed into a frame structure by relative rotation or is released from the enclosed state by the first elastic member. At least two clamping jaws are arranged on the corresponding hinged seat bodies. A winding and unwinding structure is arranged in the frame structure. The winding and unwinding structure comprises a linear drive unit and a limiting hook. The linear drive unit is provided with the limiting hook on one side or both sides. The limiting hook is connected to the frame structure. The limiting hook is provided with a guide unit at one end. The guide unit has a corner position and a third limit position. The application has the beneficial effects that the opening and clamping state of the mounting seat and the mounting platform are linked by the cooperation of the inserting rod and the first through hole. When the clamping structure is clamped, the mounting platform can achieve two purposes at one time.

Description

Technical Field

[0001] This invention relates to the field of overhead transmission line technology, and in particular to a deployable platform and deployment method for detecting the service status of transmission lines. Background Technology

[0002] Overhead transmission lines widely pass through mountainous areas and forests prone to wildfires, which pose a serious threat to the safe operation of these lines. After a wildfire passes, critical components such as conductors, fittings, insulators, and towers are subjected to high temperatures, which can easily lead to material degradation (such as reduced strength, embrittlement of fittings, and aging of insulators). If their service status is not assessed in a timely manner and corresponding measures are not taken, major safety accidents such as line breaks and string failures may occur.

[0003] Currently, the inspection of the service status of transmission line components mainly relies on the following methods: First, manual climbing of towers or on-site inspection using insulated bucket trucks, which is risky, inefficient, and difficult to implement in complex mountainous terrain; Second, visual inspection using ground or drone-mounted optical equipment, but this can only detect external damage and cannot assess the degradation of internal material properties; Third, the fixed installation of online monitoring devices on towers or conductors, which collects data in real time through sensors and transmits it remotely, but this method is limited by solar power supply and communication base station coverage, and the monitoring devices themselves need to be installed and fixed manually, which presents problems of installation difficulty and inconvenience in maintenance.

[0004] In summary, the existing technology lacks a platform that can quickly, safely, and reliably install detection devices on transmission line components to meet the need for rapid assessment of component service status after wildfires.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The technical problem to be solved by this invention is to solve the problem of not being able to quickly, safely and reliably install the detection device on the components of the power transmission line.

[0007] This invention claims protection for a deployable platform for monitoring the service condition of transmission lines, comprising: The mounting platform includes a first elastic element and at least two hinged seats that are interchangeably engaged with each other, which are either enclosed by relative rotation to form a frame structure or released by the first elastic element. At least two grippers are positioned opposite each other on the corresponding hinged base; The retractable structure is located within the frame structure and includes a linear drive unit and limit hooks. Limit hooks are provided on one or both sides of the linear drive unit and are interchangeably engaged with the frame structure. One end of the limit hook is provided with a guide unit, which has a corner position and a third extreme position. When the output end of the linear drive unit moves to the corner position, the other end of the limit hook engages with the hinge seat, the frame structure is in an enclosed state, and the gripper is in a clamping state. When the output end of the linear drive unit moves to the third extreme position, the other end of the limit hook disengages from the hinge seat, the frame structure is released from the enclosed state, and the gripper switches to an open state.

[0008] Preferably, there are two hinge seats, namely a first hinge seat and a second hinge seat. The mounting platform also includes a platform body. The first hinge seat is provided on the platform body, and the second hinge seat is connected to one side of the first hinge seat. The second hinge seat and the platform body are connected by a first elastic element.

[0009] Preferably, the guide unit is a through groove, and the side of the limiting hook located on the second hinge seat has a through groove. The through groove includes a horizontal groove section and an arc-shaped groove section. The horizontal groove section is perpendicular to the linear drive unit, and the horizontal groove section extends away from the second hinge seat to form an arc-shaped groove section. The connection between the horizontal groove section and the arc-shaped groove section constitutes a corner position, and the end of the arc-shaped groove section away from the horizontal groove section constitutes a third limit position.

[0010] Preferably, the linear drive unit includes a linear push rod and a second connecting shaft. One end of the linear push rod is fixed to form a fixed end of the linear push rod, and the other end of the linear push rod is connected to the second connecting shaft to form a moving end of the linear push rod. The linear push rod is perpendicular to the second connecting shaft, the second connecting shaft passes through a through slot, and the linear push rod forms the output end of the linear drive unit.

[0011] Preferably, the retractable structure also includes a rotating seat, and the second hinged seat is provided with a rotating seat. The two rotating seats are symmetrically arranged along the straight push rod, and each rotating seat is hinged with a limit hook.

[0012] Preferably, a hook head is provided at the end of the limiting hook that is far from the guide unit.

[0013] The hook is used for hooking and hanging.

[0014] Preferably, the installation platform also includes a first limiting block, and at least two adjacent surfaces of the hinged seats are provided with the first limiting block. When the output end of the linear drive unit moves to the corner position, the hook engages with the first limiting block.

[0015] Preferably, a second hinge body is connected to one side of the first hinge body via a hinge shaft.

[0016] Preferably, a circular arc transition is used between the horizontal groove segment and the arc-shaped groove segment.

[0017] A circular arc transition ensures smooth movement during guidance.

[0018] This invention claims protection for a deployment method of a deployable platform for detecting the service condition of transmission lines, comprising: The output end of the linear drive unit moves to the corner position, the other end of the limit hook engages with the hinged seat, the frame structure is in an enclosed state, and the gripper is in a clamping state. The linear drive unit moves its output end to the third limit position, the other end of the limit hook disengages from the hinged seat, the frame structure is released from its enclosed state, and the gripper switches to the open state.

[0019] The advantages of this invention are: I. This invention, through the coordinated installation platform and retraction structure, utilizes the guiding action between the linear drive unit and the guide unit on the limiting hook. When the output end of the linear drive unit moves to a corner position, the other end of the limiting hook engages with the hinged base, the frame structure is in an enclosed state, and the grippers on the installation platform are in a clamping state, allowing the deployable platform to hang on the guide wire. When the linear drive unit moves its output end to the third extreme position, the other end of the limiting hook disengages from the hinged base, the frame structure is released from the enclosed state, and the grippers switch to an open state, automatically and quickly detaching from the guide wire, achieving rapid retraction and deployment of the deployable platform.

[0020] Second, in the retractable structure, only the extension and retraction stroke of the linear push rod is needed. By switching between the corner position, the second limit position and the third limit position, the wedge clamping wire, unlocking the hinge, opening the base and releasing the wire are completed in sequence, which greatly simplifies the complexity of remote control operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the detection device for detecting the upper conductor in this invention; Figure 2 This is a schematic diagram of the structure in this invention where the mounting base is located above the drone body; Figure 3 This is a schematic diagram of the detection device for detecting the lower conductor in this invention; Figure 4 This is a schematic diagram of the structure in this invention where the mounting base is located below the drone body; Figure 5 This is a schematic diagram of the structure in this invention where the installation platform and the installation platform are separated; Figure 6 This is a schematic diagram of the assembly structure of the mounting platform and mounting base in this invention; Figure 7 This is a schematic diagram of the internal structure of the mounting base in this invention; Figure 8 This is a schematic diagram of the installation platform in this invention; Figure 9 This is a schematic diagram of the clamping structure platform in this invention; Figure 10 This is a three-dimensional structural diagram of the clamping structure in this invention; Figure 11 This is a schematic diagram of the structure of the retractable structure in this invention, which removes the wedge block; Figure 12 This is a schematic diagram of the retractable structure of the present invention without the limiting hook; Figure 13 This is a schematic diagram of the connection structure between the retractable structure, the first hinged seat, and the second hinged seat in this invention; Figure 14 This is a schematic diagram of the connection structure of the limiting hook, the first hinge seat, and the second hinge seat in this invention; Figure 15 This is a schematic diagram of the limiting hook structure in this invention; Figure 16 This is a schematic diagram showing that the installation platform and the wires are not in contact in this invention; Figure 17 This is a schematic diagram of the contact between the mounting platform and the wire in this invention; Figure 18 This is a schematic diagram of the clamping structure holding the wire in this invention; Figure 19 This is a schematic diagram of the installation platform detached from the wire in this invention; a. Conduit wire; 1. Unmanned aerial vehicle (UAV) body; 2. Mounting base; 20. Mounting bracket; 200. First through hole; 21. Guide fork; 210. First inclined surface; 3. Installation platform; 30. Platform body; 300. Lifting ring; 31. First hinge seat; 32. Second hinge seat; 33. First limiting block; 34. First spring; 35. Clamping structure; 350. Linear guide rail; 351. Limiting base; 352. First sliding column; 354. Second limiting block; 355. First gripper; 3550. First insert rod; 356. Second gripper; 3560. Second insert rod; 357. Third spring; 358. Ratchet rack; 359. Ratchet hinge seat; 3590. Ratchet rocker arm; 3591. Claw; 36. Retraction and extension structure; 360. Linear push rod; 361. First connecting shaft; 362, slide block; 3620, U-shaped slide rail; 36200, second slide groove; 36201, wedging guide rail; 3621. Connecting part; 363. First wedge; 3630. Second sliding post; 364. Second wedge; 3640. Sliding block; 365. Reseat rotation; 366. Limit hook; 3660. Through groove; 36600. Horizontal groove section; 36601. Arc-shaped groove section; 3660a. Corner position; 3660b. Second limit position; 3660c. Third limit position; 367. Second rotation; 4. Detection unit. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0023] See Figures 1 to 5 This embodiment claims protection for a testing device used for detecting the service status of power transmission lines, used to detect the working performance of components such as conductor a, fittings, and towers. The following description uses conductor a as an example. Specifically, the testing device includes a drone body 1, a mounting base 2, a mounting platform 3, and a testing unit 4 (not shown in the figure).

[0024] Mounting bracket 2 is fixed to the drone body 1. The fixing position is not limited and is mainly determined by the position of wire a. For example, when detecting the upper wire, with the drone in a horizontal hovering attitude, the direction perpendicular to the ground upward is defined as up, and the direction perpendicular to the ground downward is defined as down. Mounting bracket 2 is set on the top of the drone body 1. When detecting the lower wire, mounting bracket 2 is set on the bottom of the drone body 1. The following uses the bottom of the drone body 1 as an example. The same logic applies to the top of the drone body 1, and will not be repeated.

[0025] A coordinate system is established with the center of the top of the mounting base 2 as the origin o, the length direction of the mounting base 2 as the x-axis, the width direction of the mounting base 2 as the y-axis, and the straight line passing through the origin o upward as the z-axis. It should be noted that during the test, the y-axis is parallel to the wire a.

[0026] See Figures 6 to 7The mounting base 2 includes a mounting frame 20 and guide forks 21. The mounting frame 20 is mounted on the bottom of the UAV body 1. The mounting frame 20 has an inverted U-shaped structure and a first space inside. A pair of guide forks 21 are provided on the front side of the bottom of the mounting frame 20, and a pair of guide forks 21 are provided on the rear side of the bottom of the mounting frame 20. The two guide forks 21 on the front side are symmetrically arranged along the y-axis; the two guide forks 21 on the rear side are symmetrically arranged along the y-axis. The two pairs of guide forks 21 have the same shape and structure. Taking the two guide forks 21 on the front side as an example, the surfaces of the two adjacent guide forks 21 are first inclined surfaces 210 that slope towards the mounting base 2, so that the distance between the two guide forks 21 gradually narrows to form a guide structure. The two side walls of the mounting frame 20 have first through holes 200 symmetrically arranged along the x-axis.

[0027] See Figure 8 The installation platform 3 includes a platform body 30, a first hinge seat 31, a second hinge seat 32, a first limiting block 33, a first spring 34, a clamping structure 35, and a retractable structure 36. The platform body 30 has an inverted L-shaped structure. The first hinge seat 31 is welded to the bottom of the platform body 30. The second hinge seat 32 is connected to one side of the first hinge seat 31 via a hinge shaft. When the first hinge seat 31 and the second hinge seat 32 are flush, the first hinge seat 31 and the second hinge seat 32 enclose each other to form a frame structure. The clamping structures 35 are symmetrically arranged on both sides along the x-axis inside the frame structure. The retractable structure 36 is set inside the frame structure located between the two clamping structures 35.

[0028] Furthermore, a detection unit 4 is mounted on the top of the platform body 30 via screws. The detection unit 4 is mainly used for temperature detection and conductor vibration detection, which is existing technology. In addition, a lifting ring 300 is provided on the outer side of the platform body 30, and the lifting ring 300 is hooked to the UAV body 1 via a connecting line.

[0029] Furthermore, several first limiting blocks 33 are fixedly connected to the adjacent surfaces of the first hinge seat 31 and the second hinge seat 32. When the first hinge seat 31 and the second hinge seat 32 enclose each other to form a frame structure, the two first limiting blocks 33 are in contact with each other.

[0030] The bottom of the second hinge seat 32 is connected to one end of the first spring 34, and the other end of the first spring 34 extends toward the platform body 30 and is connected to the platform body 30. Under normal conditions, the first spring 34 is in a retracted state.

[0031] See Figures 9 to 10The clamping structure 35 is used to initially clamp the wire a and release the mounting platform 3 from the mounting base 2. Specifically, the clamping structure 35 includes a linear guide rail 350, a limiting base 351, a first sliding column 352, a second spring (not shown in the figure), a second limiting block 354, a first gripper 355, a second gripper 356, a third spring 357, a ratchet rack 358, and a ratchet hinge seat 359. One end of the slide rail is mounted on the first hinge seat 31, and the slide rail is parallel to the x-axis. The other end of the slide rail extends towards the second hinge seat 32, and the second hinge seat 32 is not connected to the slide rail. The limiting base 351 is mounted in the middle of the second hinge seat 32, and the limiting base 351 is fixedly connected to the first hinge seat 31. The bottom of the limiting base 351 has a sliding hole. One end of the first sliding post 352 is slidably disposed in the sliding hole. The first sliding post 352 and the sliding hole form a sliding guide fit along the z-axis. The other end of the first sliding post 352 is equipped with a second limiting block 354. The second limiting block 354 is perpendicular to the first sliding post 352 and parallel to the slide rail.

[0032] One end of the second spring is connected inside the sliding hole, and the other end of the second spring is connected to the first sliding column 352; under normal conditions, the second spring is in the extended state.

[0033] A first gripper 355 and a second gripper 356 are slidably mounted on the linear guide rails 350 on both sides of the limiting base 351, and the first gripper 355 and the second gripper 356 are arranged opposite each other with their clamping surfaces facing each other. A first insert rod 3550 is fixedly connected to the side of the first gripper 355 facing away from the clamping surface, and a second insert rod 3560 is fixedly connected to the side of the second gripper 356 facing away from the clamping surface. Both the first insert rod 3550 and the second insert rod 3560 are parallel to the x-axis, and the first insert rod 3550 and the second insert rod 3560 are coaxially arranged with the corresponding first through hole 200.

[0034] A third spring 357 is fitted on both the first insertion rod 3550 and the second insertion rod 3560. One end of the third spring 357 is connected to the inner wall of the corresponding first hinge seat 31 or second hinge seat 32, and the other end of the third spring 357 is connected to the corresponding first gripper 355 or second gripper 356. Under normal conditions, the third spring 357 is in the extended state.

[0035] It should be noted that, under the elastic force of the second spring, the end of the second limiting block 354 is located between the tails of the first gripper 355 and the second gripper 356, which is used to simultaneously limit the tails of the two grippers and prevent them from sliding towards each other; furthermore, the tail of the second gripper 356 is provided with a slot, which can be inserted and engaged with the second limiting block 354. When wire a touches the second limiting block 354 and presses it down, the second limiting block 352 retracts into the sliding hole, releasing the limitation on the tails of the two grippers. The third spring 357 drives the two grippers to slide towards each other to clamp wire a. At this time, the second limiting block 354 is inserted into the slot.

[0036] Furthermore, racks are fixedly connected to the sides of both the first gripper 355 and the second gripper 356. Ratchet hinge seats 359 are fixedly connected inside both the first hinge seat 31 and the second hinge seat 32. A ratchet lever 3590 is hinged to the ratchet hinge seat 359, and a pawl 3591 is provided at the head end of the ratchet lever 3590 for engaging with the tooth groove of the rack. When the first gripper 355 and the second gripper 356 are manually slid away from each other by external force until the first insert 3550 and the second insert 3560 extend out of their respective first through holes 200, the rack slides with the grippers until the two grippers are at their first limit position. The pawl 3591 at the head end of the ratchet lever 3590 falls into the tooth groove of the rack, achieving locking.

[0037] It should be noted that when the pawl 3591 engages with the rack, it forms a one-way limit, ensuring that the two pawls cannot open outwards during the wedging process, but can only retract inwards. In addition, both the first hinge seat 31 and the second hinge seat 32 have a second through hole through which the ratchet lever 3590 can extend, making it convenient for the operator to operate. Furthermore, both the first hinge seat 31 and the second hinge seat 32 have a third through hole through which the corresponding first insert 3550 and second insert extend.

[0038] See Figures 11 to 15 The retractable structure 36 includes a linear push rod 360, a first connecting shaft 361, a slide 362, a first wedge 363, a second wedge 364, a rotating seat 365, a limiting hook 366, and a second connecting shaft 367. The linear push rod 360 is parallel to the x-axis. Slides 362 are fixedly connected to the first hinge seats 31 on both sides of the linear push rod 360. The slide 362 includes a U-shaped slide 3620 and a connecting part 3621. The U-shaped slide 3620 is fixedly connected to the first hinge seat 31. One end of the U-shaped slide 3620 is fixedly connected to the first connecting shaft 361 through the connecting part 3621. One end of the linear push rod 360 located on the first hinge seat 31 is the fixed end of the linear push rod 360, which is fixedly connected to the middle of the first connecting shaft 361. The first connecting shaft 361 is perpendicular to the linear push rod 360, and the other end of the linear push rod 360 is the output end of the linear push rod 360.

[0039] It should be noted that it is not limited to a linear actuator 360°, but can also be a cylinder, etc.

[0040] A first wedge 363 is provided inside the U-shaped slide 3620, and a second wedge 364 is partially provided inside the U-shaped slide 3620. The opposing surfaces of the second wedge 364 and the first wedge 363 are provided with mutually cooperating second inclined surfaces, so that when the second wedge 364 moves along the x-axis, the second inclined surfaces of the first wedge 363 and the second wedge 364 slide relative to each other, driving the first wedge 363 to slide relative to the U-shaped slide 3620 along the z-axis.

[0041] Furthermore, the first wedge 363 has a second sliding post 3630 protruding from its side, and the U-shaped slide 3620 has a corresponding second sliding groove 36200 on its side wall. The length of the second sliding groove 36200 is parallel to the z-axis, and the second sliding post 3630 and the second sliding groove 36200 form a sliding guide fit along the z-axis.

[0042] A wedge guide rail 36201 is fixedly connected to the end of the U-shaped slide 3620 away from the first connecting shaft 361. The wedge guide rail 36201 is parallel to the U-shaped slide 3620. A slider 3640 that cooperates with the wedge guide rail 36201 is provided on the second wedge block 364. When the slider 3640 slides to fit with the end of the U-shaped slide 3620, the second wedge block 364 drives the first wedge block 363 to protrude out of the U-shaped slide 3620.

[0043] A rotating seat 365 is provided on the second hinge seat 32 between the slide 362 and the linear push rod 360. The two rotating seats 365 are symmetrically arranged along the linear push rod 360. A limit hook 366 is hinged on each rotating seat 365. The limit hook 366 extends along the x-axis. A through groove 3660 is provided on the side of the limit hook 366 on the second hinge seat 32. The through groove 3660 includes a horizontal groove section 36600 and an arc-shaped groove section 36601. The horizontal groove section 36600 is parallel to the x-axis. The end of the horizontal groove section 36600 away from the first connecting shaft 361 extends downward along the z-axis to form an arc-shaped groove section 36601. The arc-shaped groove section 36601 and the horizontal groove section 36600 are connected by a circular arc transition.

[0044] It should be noted that the through groove 3660 is a guide unit that guides the first connecting shaft 361, and is not limited to the through groove 3660; it can also be a guide rail, etc.

[0045] The output end of the linear actuator 360 is connected to the middle of the second coupling 367. The output end of the linear actuator 360 is perpendicular to the second coupling 367. The two ends of the second coupling 367 pass through the through slot 3660 and are connected to the side of the corresponding second wedge 364.

[0046] A hook head is provided at one end of the limiting hook 366 away from the through groove 3660. The hook head and the first limiting block 33 are on the same horizontal line parallel to the x-axis. When the first hinge seat 31 and the second hinge seat 32 enclose each other to form a frame structure, and the two first limiting blocks 33 are in contact with each other, the linear push rod 360 is in a retracted state. At this time, the hook head hooks onto the outside of the first limiting block 33 on the first hinge seat 31, so that the two first limiting blocks 33 are in close contact with each other.

[0047] It should be noted that the springs mentioned above are not limited to springs; they can also be elastic elements such as sheet springs or torsion springs that can provide elastic recovery.

[0048] The testing equipment used for monitoring the service status of transmission lines performs the following tests on the working performance of components such as conductors, fittings, and towers: See Figures 16 to 18 S1. Fix the mounting base 2 to the drone body 1. Specifically, determine the installation position of the mounting base 2 according to the position of the wire a. Taking the detection of the lower wire a as an example, fix the mounting base 2 at the bottom of the drone body 1 to ensure that the pair of guide forks 21 on the front side of the bottom of the mounting bracket 20 are symmetrical along the y-axis.

[0049] S2. Fix the mounting platform 3 to the mounting base 2, specifically including the following steps: S20. Adjust the retractable structure 36 to be in the centered state. Specifically, adjust the output end of the linear push rod 360 so that the second connecting shaft 367 slides to the connection point of the horizontal groove section 36600 and the arc-shaped groove section 36601, i.e., the corner position 3660a. At this time, firstly, the second inclined surface of the second wedge block 364 and the first wedge block 363 on opposite surfaces are completely in contact. The second wedge block 364 does not exert a downward pushing force on the first wedge block 363, and the first wedge block 363 is located in the U-shaped slide 3620. Secondly, the second connecting shaft 367 flattens the limiting hook 366, and the hook head hooks onto the outside of the first limiting block 33 on the first hinge seat 31, so that the two first limiting blocks 33 are close to each other. The surfaces of the first hinge seat 31 and the second hinge seat 32 are flush and together form a frame structure. At this time, the first spring 34 is in a stretched state.

[0050] It should be noted that the control of the 360° output end of the linear actuator is achieved through remote control for ease of operation, which is existing technology.

[0051] S21. Adjust the clamping structure 35 to the open state and fix the mounting platform 3 on the mounting base 2. Specifically, place the mounting platform 3 inside the mounting base 2. The third spring 357 is normally in the extended state. Hold the first gripper 355 and the second gripper 356, so that the two grippers slide away from each other along the linear guide rail 350. When sliding, move the latch 3591 to disengage the latch 3591 from the rack. Slide until the two grippers are at the first limit position. The first insert rod 3550 and the second insert rod 3560 extend out of the corresponding first through hole 200. At this time, the third spring 357 is in the compressed state, thus fixing the mounting platform 3. At the same time, the second spring is normally in the extended state, pushing the bottom of the first sliding column 352 out of the sliding hole and locking between the first gripper 355 and the second gripper 356.

[0052] S3. The remote-controlled drone body 1 moves the mounting platform 3 to the position of the wire a. The wire a triggers the clamping structure 35 to switch to the clamping state. The clamping structure 35 pre-clamps the wire a, and the mounting platform 3 disengages from the drone body 1. Specifically: The remote-controlled drone body 1 moves the mounting platform 3 to the position of the wire a. The wire a presses on the second limiting block 354, causing the second limiting block 354 to be under force. The first sliding post 352 slides upward along the sliding hole, compressing the second spring until the first sliding post 352 is completely retracted into the sliding hole.

[0053] Without the obstruction of the first sliding post 352 between the first gripper 355 and the second gripper 356, the third spring 357 switches from the compressed state to the extended state, pushing the first gripper 355 and the second gripper 356 to slide closer to each other along the linear guide rail 350 until the first gripper 355 and the second gripper 356 close and clamp, and the first insertion rod 3550 and the second insertion rod 3560 disengage from the corresponding first through hole 200, the mounting platform 3 disengages from the mounting base 2, and the drone flies away.

[0054] S4. The installation platform 3 is hung on the wire a. Under its own weight, the installation platform 3 flips over so that the platform body 30 is below.

[0055] S5. The remote control retraction structure 36 switches to the tightened state, causing the second wedge 364 to press against the wire a. The second wedge 364, the first gripper 355, and the second gripper 356 work together to achieve a stable connection between the installation platform 3 and the wire a. Specifically, the remote control linear push rod 360 retracts, causing the second connecting shaft 367 to slide along the horizontal groove section 36600 to the second limit position 3660b. The second connecting shaft 367 pulls the second wedge 364 to slide into the U-shaped slide rail 3620. The second inclined surface between the first wedge 363 and the second wedge 364 slides relative to each other, causing the second wedge 364 to push the first wedge 363 downward along the z-axis until the surface of the first wedge 363 protrudes out of the U-shaped slide rail 3620 and presses against the surface of the wire a.

[0056] See Figure 19 S6. The remote control retraction structure 36 switches to the released state, causing the installation platform 3 to detach from the wire a. Specifically: the remote control linear push rod 360 extends to its maximum limit length, the second connecting shaft 367 slides along the horizontal groove section 36600 to the arc groove section 36601 to the third limit position 3660c, pressing the limit hook 366 upward. It is also subjected to the hinge action of the rotating seat 365, causing the hook head to lift up and detach from the first limit block 33. The first spring 34 switches from the stretched state to the contracted state, causing the second hinge seat 32 to rotate around the hinge axis relative to the first hinge seat 31 until the first hinge seat 31 and the second hinge seat 32 open. At this time, the first gripper 355 and the second gripper 356 open and detach from the wire a. The connecting wire on the lifting ring 300 hooks the installation platform 3, or it can also be caught by the internal space of the wire a fork when unlocking and unloading.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A deployable platform for detecting the service status of transmission lines, characterized in that, include: The mounting platform (3) includes a first elastic element and at least two hinged seats that are interchangeably engaged with each other, forming a frame structure by relative rotation or being released from the enclosure state by the first elastic element. At least two grippers are positioned opposite each other on the corresponding hinged base; The retractable structure (36) is set inside the frame structure. The retractable structure (36) includes a linear drive unit and a limit hook (366). The limit hook (366) is set on one or both sides of the linear drive unit. The limit hook (366) is connected to the frame structure. One end of the limit hook (366) is provided with a guide unit. The guide unit has a corner position (3660a) and a third extreme position (3660c). When the output end of the linear drive unit moves to the corner position (3660a), the other end of the limit hook (366) hooks with the hinge seat, the frame structure is in an enclosed state, and the gripper is in a clamping state. When the output end of the linear drive unit moves to the third extreme position (3660c), the other end of the limit hook (366) disengages from the hinge seat, the frame structure is released from the enclosed state, and the gripper switches to the open state.

2. The deployable platform for detecting the service status of transmission lines according to claim 1, characterized in that, There are two hinge seats, namely a first hinge seat (31) and a second hinge seat (32). The mounting platform (3) also includes a platform body (30). The first hinge seat (31) is provided on the platform body (30). The second hinge seat (32) is connected to one side of the first hinge seat (31). The second hinge seat (32) is connected to the platform body (30) through a first elastic element.

3. The deployable platform for detecting the service status of transmission lines according to claim 2, characterized in that, The guide unit is a through groove (3660). The limiting hook (366) on the second hinge seat (32) has a through groove (3660) extending through its side. The through groove (3660) includes a horizontal groove section (36600) and an arc-shaped groove section (36601). The horizontal groove section (36600) is perpendicular to the linear drive unit. The horizontal groove section (36600) extends away from the second hinge seat (32) to form an arc-shaped groove section (36601). The connection between the horizontal groove section (36600) and the arc-shaped groove section (36601) constitutes a corner position (3660a). The end of the arc-shaped groove section (36601) away from the horizontal groove section (36600) constitutes a third extreme position (3660c).

4. The deployable platform for detecting the service status of transmission lines according to claim 3, characterized in that, The linear drive unit includes a linear push rod (360) and a second connecting shaft (367). One end of the linear push rod (360) is fixed to form the fixed end of the linear push rod (360), and the other end of the linear push rod (360) is connected to the second connecting shaft (367) to form the moving end of the linear push rod (360). The linear push rod (360) is perpendicular to the second connecting shaft (367). The second connecting shaft (367) passes through the through slot (3660), and the linear push rod (360) forms the output end of the linear drive unit.

5. The deployable platform for detecting the service status of transmission lines according to claim 2, characterized in that, The retractable structure (36) also includes a rotating seat (365). The second hinged seat (32) is provided with a rotating seat (365). The two rotating seats (365) are symmetrically arranged along the straight push rod (360). Each rotating seat (365) is hinged with a limit hook (366).

6. The deployable platform for detecting the service status of transmission lines according to claim 2, characterized in that, A hook head is provided at the end of the limit hook (366) that is far from the guide unit.

7. The deployable platform for detecting the service status of transmission lines according to claim 6, characterized in that, The mounting platform (3) also includes a first limiting block (33). At least two hinged seats are provided with the first limiting block (33) on their adjacent surfaces. When the output end of the linear drive unit moves to the corner position (3660a), the hook head engages with the first limiting block (33).

8. The deployable platform for detecting the service status of transmission lines according to claim 2, characterized in that, The first hinge seat (31) is connected to the second hinge seat (32) via a hinge shaft on one side.

9. The deployable platform for detecting the service status of transmission lines according to claim 3, characterized in that, A circular arc transition is used between the horizontal groove section (36600) and the arc-shaped groove section (36601).

10. A method for deploying a deployable platform for detecting the service status of transmission lines, comprising the deployable platform for detecting the service status of transmission lines as described in any one of claims 1 to 9, characterized in that, include: The output end of the linear drive unit moves to the corner position (3660a), the other end of the limit hook (366) hooks with the hinge seat, the frame structure is in the enclosed state, and the gripper is in the clamping state. The linear drive unit moves its output end to the third limit position (3660c), the other end of the limit hook (366) disengages from the hinge seat, the frame structure is released from the enclosed state, and the gripper switches to the open state.

Images