Insulator zero value detection device adaptive to unmanned aerial vehicle hoisting

Abstract

The utility model relates to an insulator zero value detection device adapted to unmanned aerial vehicle hoisting, the insulator zero value detection device comprises a control host and a test mechanism, the test mechanism comprises an installation support, sliding mechanisms and a clamping mechanism, the device realizes alternate movement through cooperation of the three sliding mechanisms, and the device can stably move on an insulator. And meanwhile, the clamping mechanisms on any two sliding mechanisms can form a detection path to realize the detection of a single insulator, so that the detection of the single insulator is realized, and the detection efficiency is further improved. In addition, the device can be accurately matched and connected with the unmanned aerial vehicle, the testing mechanism can be quickly sent to the position of the high-altitude insulator which is difficult to touch by traditional workers by virtue of the flying capability of the unmanned aerial vehicle, and the operators do not need to climb a tower or sit on a hanging basket, so that the potential safety hazard of high-altitude operation is fundamentally eliminated, and the personal safety of the operators is guaranteed.

Description

Technical Field

[0001] This application relates to the field of power safety testing technology, specifically to an insulator zero-value testing device adapted for drone hoisting. Background Technology

[0002] In power transmission lines, insulators, as core insulating components, bear the dual functions of supporting conductors and insulating against ground. Their insulation performance directly determines the safe and stable operation of the transmission line. As power grid construction develops towards higher voltage, longer distances, and larger capacities, the operating environment of insulators is becoming increasingly complex. Long-term exposure outdoors exposes them to factors such as ultraviolet radiation, temperature and humidity changes, acid rain corrosion, and dust adhesion, making them prone to insulation performance degradation or even zero-value (i.e., insulation resistance approaching zero) faults. If zero-value insulators are not detected and replaced in time, it will lead to a decline in the line insulation level, causing flashover, tripping, and other accidents. In severe cases, it can even cause large-scale power outages, posing significant hidden dangers to social production, daily life, and the safety of the power system.

[0003] Currently, zero-value detection of insulators mainly relies on three methods: manual inspection, traditional ground inspection equipment, and drone-assisted inspection, but all of them have significant technical shortcomings:

[0004] The limitations of manual inspection methods are prominent: Traditional manual inspection requires staff to climb the tower or use aerial work platforms to operate at close range, which is not only labor-intensive and inefficient, but also poses safety risks such as electric shock and falls from heights in high-voltage and strong electric field environments. Especially for transmission lines in mountainous areas and across rivers and other complex terrains, the safety and feasibility of manual inspection are greatly reduced, making it difficult to meet the needs of large-scale line inspection.

[0005] Traditional ground-based testing equipment suffers from poor adaptability: Existing ground-based testing devices are mostly fixed structures or small portable equipment, which can only test insulators in low-lying lines or substations, and cannot be adapted to high-altitude transmission line scenarios. Moreover, such equipment usually relies on manual handling and positioning, which limits the testing range and makes it difficult to flexibly adapt to different models and string lengths of insulators. During the testing process, inaccurate alignment between the equipment and the insulator can easily lead to a decrease in testing accuracy.

[0006] Drone-assisted inspection faces technical bottlenecks: Although some inspection solutions incorporate drones as a platform, existing drone-compatible inspection devices generally suffer from unreasonable structural design. On one hand, the devices lack stable multi-dimensional adjustment mechanisms, making it impossible to flexibly adjust the position and clamping angle of the detection electrodes according to the arrangement of the insulator strings (e.g., vertical or horizontal strings). This results in poor contact between the electrodes and the insulator surface, easily leading to distorted detection signals. On the other hand, using drones as a platform results in poor load-bearing stability. Under drone hovering and shaking or outdoor airflow interference, the mechanism is prone to shifting, affecting inspection accuracy and potentially causing the device to detach due to unstable clamping, resulting in equipment damage or potential safety hazards to the wiring. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this application provides an insulator zero-value detection device adapted for UAV hoisting, specifically adopting the following technical solution:

[0008] A zero-value detection device for insulators adapted for drone hoisting includes a control host and a testing mechanism, wherein the testing mechanism includes a mounting bracket, a sliding mechanism and a clamping mechanism;

[0009] The mounting bracket includes mounting plates and connecting rods. Two mounting plates are arranged at intervals relative to each other, and the two mounting plates are fixed together by multiple connecting rods to form a frame assembly. The frame assembly has a U-shaped installation space inside.

[0010] The sliding mechanism includes a first sliding mechanism, a second sliding mechanism, and a third sliding mechanism. The first sliding mechanism is located on the upper side of the mounting bracket, the second sliding mechanism is located in the upper middle of the mounting bracket, and the third sliding mechanism is located on the lower side of the mounting bracket.

[0011] The clamping mechanism includes a first clamping mechanism, a second clamping mechanism, and a third clamping mechanism, all of which are connected to an electrode assembly. The first clamping mechanism is located on the side of the mounting bracket and is connected to a first sliding mechanism. The second clamping mechanism is located in the middle of the mounting bracket and is connected to a second sliding mechanism. The third clamping mechanism is located on the side of the mounting bracket and is connected to a third sliding mechanism.

[0012] Optionally: the first sliding mechanism includes a first drive motor, a first screw, a first connecting block, and a first guide rod;

[0013] Two first guide rods are distributed on the upper side of the mounting bracket, and the end of each first guide rod is fixedly connected to the mounting plate.

[0014] The first screw is located between the two first guide rods, and the ends of the first screw are respectively connected to the mounting plate. One end of the first screw passes through the mounting plate on the same side and extends out to the first connecting part, which is connected to the first drive motor.

[0015] The first connecting block is provided with a first threaded hole and a first guide hole. The first threaded hole is located in the middle of the first connecting block and is threadedly connected to the first screw. The two first guide holes are located opposite each other on both sides of the first threaded hole and are connected to the first guide rod. The two ends of the first connecting block are respectively provided with a first mating part, which is used to connect the first clamping mechanism.

[0016] Optionally: the first sliding mechanism includes a second drive motor, a second screw, a second connecting block, and a second guide rod;

[0017] The second screw is located below the first screw, and the ends of the second screw are respectively connected to the mounting plate. One end of the second screw passes through the mounting plate on the same side and extends out to the second connecting part, which is connected to the second drive motor.

[0018] The second guide rod is located between the first screw and the second screw, and the end of the second guide rod is fixedly connected to the mounting plate;

[0019] The second connecting block is provided with a second threaded hole and a second guide hole. The second threaded hole is located in the middle of the first connecting block and is threadedly connected to the second screw. The second guide hole is close to one end of the second connecting block and is connected to the second guide rod. The other end of the second connecting block is provided with a second mating part, which is used to connect the second clamping mechanism.

[0020] Optionally: the third sliding mechanism includes a third drive motor, a third screw, a third connecting block, and a third guide rod;

[0021] The third guide rod is located on the lower side of the mounting bracket, and the ends of the third guide rod are fixedly connected to the mounting plate.

[0022] A third screw is provided above the third guide rod, and the ends of the third screw are respectively connected to the mounting plate. One end of the third screw passes through the mounting plate on the same side and extends out to the third connecting part, and the third connecting part is respectively connected to a third drive motor.

[0023] The third connecting block is provided with a third threaded hole and a third guide hole. The third threaded hole is located in the middle of the third connecting block and is threadedly connected to the third screw. The third guide hole is close to one end of the third connecting block and is connected to the third guide rod. The other end of the third connecting block is provided with a third mating part, which is used to connect to the third clamping mechanism.

[0024] Optionally: the first clamping mechanism includes a first movable member, a second movable member, a first push rod, and a second push rod;

[0025] The two sets of the first movable parts and the two sets of the second movable parts are respectively disposed opposite to each other at the ends of the first connecting block;

[0026] Each set of first movable parts is provided with a first hinge, a second hinge, and a third hinge. The first hinge and the second hinge are located opposite each other at the ends of the first movable parts, and the third hinge is located at the middle of the first movable parts and is close to the first hinge. The first push rod is located between the first hinges of the two sets of first movable parts, and the head or tail of the first push rod is connected to the first hinge. The third hinge is connected to the first mating part of the first connecting block, and the second hinge is connected to the second movable part.

[0027] Each group of second movable parts is provided with a fourth hinge, a fifth hinge, and a sixth hinge. The fourth and fifth hinges are located at the ends of the second movable parts, and the sixth hinge is located in the middle of the second movable part and is close to the fourth hinge. Each group of second movable parts corresponds to a second push rod. The fourth hinge connects to the head of the second push rod, and the tail of the second push rod is connected to the middle of the second movable part. The fifth hinge connects to the electrode assembly, and the sixth hinge connects to the third hinge of the first movable part.

[0028] Optionally, the second clamping mechanism includes a third push rod, which is fixedly connected to the second mating part of the second connecting block. The head of the third push rod faces the mounting space and is connected to the electrode assembly.

[0029] Optionally, the third clamping mechanism includes a third movable member, a fourth movable member, and a fourth push rod;

[0030] The fourth push rod is located below the third connecting block, and the extension direction of the fourth push rod is perpendicular to the length direction of the mounting bracket; the tail of the fourth push rod is hinged to the third mating part, and the head of the fourth push rod is connected to the third movable part;

[0031] The third movable member has a seventh hinge and an eighth hinge at both ends. The seventh hinge is hinged to the head of the fourth push rod, and the eighth hinge is connected to the fourth movable member.

[0032] The fourth movable member is provided with a ninth hinge, a tenth hinge, and an eleventh hinge. The ninth and tenth hinges are located at opposite ends of the fourth movable member, and the eleventh hinge is located in the middle of the fourth movable member and is close to the ninth hinge. The ninth hinge is hinged to the third mating part, the tenth hinge is connected to the electrode assembly, and the eleventh hinge is connected to the eighth hinge of the third movable member. The fourth movable member is driven to swing by the extension and retraction of the fourth push rod.

[0033] Optionally, it also includes a controller, which is fixed to the side of one of the mounting plates and electrically connected to the sliding mechanism and the clamping mechanism respectively.

[0034] Optionally, the upper part or end of the mounting bracket is provided with a fixing hook, which is used to cooperate with the connecting hook of the drone.

[0035] Optionally: The electrode assembly includes an arc-shaped clip, the inner wall of which is provided with multiple electrode contact points.

[0036] The technical solution of this application achieves the following beneficial effects:

[0037] The testing mechanism of this insulator zero-value detection device uses three sliding mechanisms to move alternately and smoothly on the insulator. Simultaneously, the clamping mechanisms on any two sliding mechanisms can form a detection path to test a single insulator, thus improving detection efficiency. Furthermore, this testing mechanism can be precisely connected with a drone. Utilizing the drone's flight capabilities, the testing mechanism can be quickly delivered to high-altitude insulator locations that are traditionally difficult for manual access, eliminating the need for workers to climb towers or ride in suspended platforms, fundamentally eliminating the safety hazards of high-altitude operations and ensuring the personal safety of workers. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the testing mechanism in the insulator zero-value detection device of this application embodiment.

[0039] Figure 2 This is a schematic diagram of the assembly structure of the mounting bracket and the sliding mechanism in the embodiments of this application.

[0040] Figure 3 This is a schematic diagram of the overall structure of the first clamping mechanism in the embodiments of this application.

[0041] Figure 4 This is a schematic diagram of the overall structure of the second clamping mechanism in the embodiments of this application.

[0042] Figure 5 This is a schematic diagram of the overall structure of the third clamping mechanism in the embodiments of this application.

[0043] Figure 6 This is a diagram showing the working state changes of the testing mechanism when testing an insulator string in an embodiment of this application.

[0044] Figure 7 This is another diagram showing the changes in the working state of the testing mechanism when testing the insulator string in this embodiment of the application.

[0045] Figure 8 This is a schematic diagram of the overall structure of the control host in the embodiments of this application.

[0046] Figure 9 This is a schematic diagram of the internal circuit connection of the control host in the embodiments of this application.

[0047] The specific meanings of the reference numerals in the attached figures are as follows:

[0048] 1-Mounting bracket; 101-Mounting plate; 2-First sliding mechanism; 201-First screw; 202-First guide rod; 203-First drive motor; 204-First connecting block; 2041-First threaded hole; 2042-First guide hole; 3-Second sliding mechanism; 301-Second screw; 302-Second guide rod; 303-Second drive motor; 304-Second connecting block; 3041-Second threaded hole; 3042-Second guide hole; 4-Third sliding mechanism; 401-Third screw; 402-Third guide rod; 403-Third drive motor; 404-Third connecting block; 4041-Third threaded hole; 4042-Third guide hole; 5-First clamping mechanism; 501-First push rod; 502-First moving part; 5021-First hinge; 5022-Third hinge 5023-Second hinge; 503-Second moving part; 5031-Fourth hinge; 5032-Sixth hinge; 5033-Fifth hinge; 504-Second push rod; 6-Second clamping mechanism; 601-Third push rod; 7-Third clamping mechanism; 701-Fourth push rod; 702-Third moving part; 7021-Seventh hinge; 7022-Eighth hinge; 703-Fourth moving part; 7031-Ninth hinge; 7032-Eleventh hinge; 7033-Tenth hinge; 8-Fixing hook; 9-Insulator; 10-Electrode assembly; 11-Control host; 1101-Host grip; 1102-Trigger button; 1103-Display screen; 1104-Buzzer; 1105-LED light; 1106-Switch button; 1107-Charging port. Detailed Implementation

[0049] The present application will now be further described with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application and should not be construed as limiting the scope of protection of the present application. It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present application.

[0050] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] like Figure 1As shown in the illustration, this application presents an insulator zero-value detection device adapted for drone hoisting, aiming to solve the problems of high risk and low efficiency of traditional manual high-altitude operations in the process of zero-value detection of insulators. This device can achieve aerial operation through drone hoisting, and combined with a multi-dimensional sliding mechanism and clamping mechanism, it can accurately clamp insulators of different specifications and complete zero-value detection. The overall structure of the insulator zero-value detection device in this embodiment mainly includes two parts: a control host 11 and a testing mechanism. The control host 11 serves as the control component for ground operators, while the testing mechanism is placed on the insulator string to be tested. Operators can remotely and manually control the testing mechanism through the control host 11, and the control host 11 monitors the detection results of the insulators in real time.

[0052] Specifically, the testing mechanism mainly includes a mounting bracket 1, a sliding mechanism, a clamping mechanism, and a controller. In addition, it can be configured with auxiliary modules such as a vision acquisition mechanism and a wireless communication unit to achieve precise hoisting and wireless data transmission. Through the coordinated cooperation of the above components, a modular and flexibly adjustable testing system can be formed.

[0053] The aforementioned testing mechanism uses the mounting bracket 1 as its support base. A sliding mechanism adjusts the position of the clamping mechanism in three-dimensional space, and the adaptive clamping function of the clamping mechanism ensures stable contact between the electrode assembly 10 and the surface of the insulator 9. Finally, the electrode assembly 10 collects the electrical parameters of the insulator 9, and the controller processes the data and determines zero values. Furthermore, the device can be attached to or detached from a drone via a fixing hook 8 on the mounting bracket 1, allowing for rapid delivery of the device to the insulator 9. This improves the flexibility and safety of aerial operations and is applicable to zero-value detection scenarios for various types of insulators 9, such as suspension insulators 9 and post insulators 9, in high-voltage transmission lines.

[0054] Specifically, in this embodiment, the mounting bracket 1 serves as the core support of the testing mechanism and can be used to fix the sliding mechanism, the clamping mechanism, and the controller.

[0055] Among them, the combination Figure 2As shown, the mounting bracket 1 includes a mounting plate 101 and connecting rods. The mounting plate 101 is preferably made of high-strength aluminum alloy. Two mounting plates 101 are arranged at intervals, and the interval can be designed according to the common length of 9 insulator strings. Multiple threaded holes can be opened on the surface of the mounting plate 101. These threaded holes are used to connect the connecting rod, the guide rod of the sliding mechanism, and the screw, ensuring the assembly accuracy of the connecting components. In this embodiment, the connecting rod is preferably made of carbon fiber. The two mounting plates 101 are fixed together by multiple connecting rods to form a frame assembly. The frame assembly has a U-shaped installation space that can accommodate 9 insulator strings of different lengths and diameters, while also providing sufficient space for the operation of the clamping mechanism. It should be noted that, in this embodiment, to avoid structural complexity, each guide rod and screw serves as a connecting rod, so no actual connecting rod is provided.

[0056] like Figure 1 As shown, in this embodiment, a fixing hook 8 is provided on the upper part of the mounting bracket 1. The fixing hook 8 is welded to the fixing plate and fixedly connected to the mounting bracket 1 through the fixing plate. For example, in this embodiment, the ends of the fixing plate are respectively fixedly connected to the mounting upright plate 101 on the same side. The fixing hook 8 can be used to cooperate with the connecting hook of the UAV. By attaching the fixing hook 8 to the connecting hook, the UAV can lift the test mechanism of the insulator zero value detection device in this embodiment and transport it to the corresponding insulator 9 position, without the need for operators to climb the tower or ride in a basket for installation.

[0057] Furthermore, in this embodiment, the sliding mechanism can be used to drive the clamping mechanism to move in different directions, achieving precise alignment between the electrode assembly 10 and the insulator 9, combined with... Figure 1 and Figure 2 As shown, it specifically includes a first sliding mechanism 2, a second sliding mechanism 3, and a third sliding mechanism 4. The first sliding mechanism 2 is located on the upper side of the mounting bracket 1, the second sliding mechanism 3 is located in the upper middle position of the mounting bracket 1, and the third sliding mechanism 4 is located on the lower side of the mounting bracket 1. These three mechanisms are independently controllable, enabling position adjustment in three-dimensional space.

[0058] Specifically, in this embodiment, the first sliding mechanism 2 moves along the length of the mounting bracket 1, thereby driving the first clamping mechanism 5 to adjust its lateral position.

[0059] Combination Figure 2 and Figure 3 As shown, the first sliding mechanism 2 includes a first drive motor 203, a first screw 201, a first connecting block 204, and a first guide rod 202; wherein the first drive motor 203 can be a DC servo motor and equipped with a planetary reducer to ensure that the output torque meets the sliding requirements.

[0060] Two first guide rods 202 are distributed parallel to each other on the upper sides of the mounting bracket 1, and their lengths are consistent with the spacing of the mounting plates 101. The end of each first guide rod 202 is fixedly connected to the mounting plate 101, and its surface is chrome-plated to reduce the frictional resistance with the first connecting block 204.

[0061] The first screw 201 preferably adopts a trapezoidal thread structure. The first screw 201 is located between the two first guide rods 202, and both ends of the first screw 201 are connected to the mounting plate 101 through deep groove ball bearings to ensure smooth rotation of the screw. One end of the first screw 201 passes through the mounting plate 101 on the same side and extends out to the first connecting part. The first connecting part is connected to the output shaft of the first drive motor 203 to realize power transmission.

[0062] like Figure 3 As shown, the first connecting block 204 is provided with a first threaded hole 2041 and a first guide hole 2042. The first threaded hole 2041 is located in the middle of the first connecting block 204 and is threadedly connected to the first screw 201. The two first guide holes 2042 are located opposite each other on both sides of the first threaded hole 2041 and are connected to the first guide rod 202. The two ends of the first connecting block 204 are respectively provided with a first mating part. The first mating part can be an ear plate mechanism, and a hinge hole is opened on the ear plate structure. The first mating part is used to connect the first clamping mechanism 5.

[0063] When the first sliding mechanism 2 is working, the controller will first drive the first drive motor 203 to rotate based on the control signal output by its own configured vision acquisition device. The first drive motor 203 drives the first screw 201 to rotate through spline transmission. Due to the circumferential limiting effect of the first guide rod 202 on the first connecting block 204, the first connecting block 204 moves along the axial direction of the first screw 201, thereby driving the first clamping mechanism 5 to achieve lateral position adjustment, so as to meet the precise alignment requirements of the electrode assembly 10 and the insulator 9.

[0064] Furthermore, in this embodiment, the second sliding mechanism 3 can move along the length of the mounting bracket 1 to drive the second clamping mechanism 6 to adjust its lateral position.

[0065] Specifically, in combination Figure 2 and Figure 4 As shown, the second sliding mechanism 3 includes a second drive motor 303, a second screw 301, a second connecting block 304, and a second guide rod 302. The second drive motor 303 is identical to the first drive motor 203, employing a DC servo motor and equipped with a planetary reducer to ensure that the output torque meets the sliding requirements.

[0066] The second screw 301 is located below the first screw 201 and is parallel to the first screw 201. The end of the second screw 301 is connected to the mounting plate 101 via a deep groove ball bearing, and one end of the second screw 301 passes through the mounting plate 101 on the same side and extends into a second connecting portion, which is connected to the output shaft of the second drive motor 303.

[0067] The second guide rod 302 is located between the first screw 201 and the second screw 301, and the second guide rod 302 is parallel to both. The end of the second guide rod 302 is fixedly connected to the mounting plate 101. It should be noted that since the second clamping mechanism 6 adopts an eccentric connection structure, the installation positions of the second guide rod 302 and the second screw 301 need to be offset from the middle position of the mounting bracket 1 by a certain distance, so as to ensure that the electrode assembly 10 connected to the second clamping mechanism 6 is exactly above the central axis of the insulator 9 when it is pressed down, and to ensure stable contact between the electrode assembly 10 and the insulator 9.

[0068] Specifically, such as Figure 4 As shown, the second connecting block 304 is provided with a second threaded hole 3041 and a second guide hole 3042. The second threaded hole 3041 is located in the middle of the first connecting block 204 and is threadedly connected to the second screw 301. The second guide hole 3042 is close to one end of the second connecting block 304 and is threadedly connected to the second guide rod 302. The other end of the second connecting block 304 is provided with a second mating part, which is used to connect the second clamping mechanism 6. For example, in this embodiment, the second mating part adopts a threaded connection method, and the second clamping mechanism 6 can be bolted to the second mating part to ensure a stable connection between the second connecting block 304 and the second clamping mechanism 6.

[0069] When the second sliding mechanism 3 is working, the controller can drive the second drive motor 303 to rotate, and the second drive motor 303 drives the second screw 301 to rotate. Since the second guide rod 302 restricts the circumferential rotation of the second connecting block 304, the second connecting block 304 is forced to move axially along the second screw 301, thereby driving the second clamping mechanism 6 to adjust its lateral position.

[0070] Furthermore, in this embodiment, the third sliding mechanism 4 moves along the length of the mounting bracket 1, thereby driving the third clamping mechanism 7 to adjust its lateral position.

[0071] Specifically, in combination Figure 2 and Figure 5As shown, the third sliding mechanism 4 includes a third drive motor 403, a third screw 401, a third connecting block 404, and a third guide rod 402. The third drive motor 403 is a DC servo motor of the same model as the first drive motor 203, and independently controls the third screw 401. It should be noted that in this embodiment, only one set of the third sliding mechanism 4 can be provided. In this case, a single third sliding mechanism 4 is only provided on one side of the installation space, and the third sliding mechanism 4 is adapted to one third clamping mechanism 7. The third clamping mechanism 7 applies pressure to the insulator 9 from the opening position of the installation space. Alternatively, in this embodiment, only two sets of the third sliding mechanism 4 can be provided. In this case, one third sliding mechanism 4 is configured on each side of the installation space, and each third sliding mechanism 4 is adapted to one third clamping mechanism 7. When working, both third clamping mechanisms 7 apply pressure to the insulator 9 from the opening position of the installation space, which can increase the clamping pressure and ensure a stable connection between the detection device and the insulator 9.

[0072] The third guide rod 402 is located on the lower side of the mounting bracket 1, and the ends of the third guide rod 402 are fixedly connected to the mounting plate 101. A third screw 401 is provided above the third guide rod 402, and both ends of the third screw 401 are connected to the mounting plate 101 through deep groove ball bearings. One end of the third screw 401 passes through the mounting plate 101 on the same side and extends out to form a third connecting part, which is connected to the drive shaft of the third drive motor 403.

[0073] like Figure 5 As shown, the third connecting block 404 is provided with a third threaded hole 4041 and a third guide hole 4042. The third threaded hole 4041 is located in the middle of the third connecting block 404 and is threadedly connected to the third screw 401. The third guide hole 4042 is located near one end of the third connecting block 404 and is connected to the third guide rod 402. The other end of the third connecting block 404 is provided with a third mating part, which is used to connect the third clamping mechanism 7. For example, in this embodiment, the third mating part adopts an ear plate structure and has two hinge positions.

[0074] When the third sliding mechanism 4 is working, the controller can drive the third drive motor 403 to make the third screw 401 rotate independently, thereby driving the third connecting block 404 to move independently along the length direction of the mounting bracket 1, realizing the adjustment of the clamping point of the third clamping mechanism 7, and adapting to the detection of insulator strings 9 with different spacing.

[0075] In this embodiment, the first clamping mechanism 5 adopts a double clamping structure, such as... Figure 3As shown, the first clamping mechanism 5 includes two sets of first movable parts 502, two sets of second movable parts 503, a first push rod 501, and two second push rods 504. Specifically, the two sets of first movable parts 502 and the two sets of second movable parts 503 are respectively disposed opposite to each other on both sides of the end of the first connecting block 204.

[0076] Each set of first movable parts 502 is provided with a first hinge portion 5021, a second hinge portion 5023, and a third hinge portion 5022. The first hinge portion 5021 and the second hinge portion 5023 are located at opposite ends of the first movable part 502, and the third hinge portion 5022 is located at the middle of the first movable part 502 and is close to the first hinge portion 5021. The first push rod 501 is located between the first hinge portions 5021 of the two sets of first movable parts 502, and the head or tail of the first push rod 501 is connected to the first hinge portion 5021 respectively. The third hinge portion 5022 is connected to the first mating part of the first connecting block 204, and the second hinge portion 5023 is connected to the second movable part 503.

[0077] Each group of second movable members 503 is provided with a fourth hinge portion 5031, a fifth hinge portion 5033, and a sixth hinge portion 5032. The fourth hinge portion 5031 and the fifth hinge portion 5033 are located at the ends of the second movable member 503, and the sixth hinge portion 5032 is located at the middle of the second movable member 503 and is close to the fourth hinge portion 5031. Each group of second movable members 503 corresponds to a second push rod 504. The fourth hinge portion 5031 is connected to the head of the second push rod 504, and the tail of the second push rod 504 is connected to the middle of the second movable member 503. The fifth hinge portion 5033 is connected to the electrode assembly 10, and the sixth hinge portion 5032 is connected to the third hinge portion 5022 of the first movable member 502.

[0078] When the first push rod 501 extends or retracts, it drives the first movable member 502 to swing around the third hinge portion 5022, thereby transmitting power to the second movable member 503. This, in turn, adjusts the second movable member 503 to bring the electrode assembly 10 closer to or further away from the surface of the insulator 9. Simultaneously, based on the extension or retraction of the second push rod 504 on the second movable member 503, the second movable member 503 can be driven to swing around the sixth hinge portion 5032. At this time, the second movable member 503 adjusts the alignment angle of the electrode assembly 10 relative to the insulator 9. Through the coordinated action of the first push rod 501 and the second push rod 504, the electrode assembly 10 is made to precisely contact the surface of the insulator 9.

[0079] Furthermore, in this embodiment, the second clamping mechanism 6 adopts a direct clamping structure, such as... Figure 4 As shown, it includes a third push rod 601, which is fixedly connected to the second mating part of the second connecting block 304 via a fixed base. The head of the third push rod 601 faces the installation space and is connected to the electrode assembly 10. When the second clamping mechanism 6 is working, the controller will control the extension and retraction of the third push rod 601, pushing the connected electrode assembly 10 to move in the vertical direction until it contacts the middle surface of the insulator 9. The clamping force can be adjusted by the thrust of the third push rod 601.

[0080] Furthermore, in this embodiment, the third clamping mechanism 7 adopts a swing connection structure, such as... Figure 5 As shown, it includes a third movable member 702, a fourth movable member 703, and a fourth push rod 701. Specifically, the fourth push rod 701 is located below the third connecting block 404, and the extension direction of the fourth push rod 701 is perpendicular to the length direction of the mounting bracket 1; the tail of the fourth push rod 701 is hinged to the third mating part, and the head of the fourth push rod 701 is connected to the third movable member 702; the third movable member 702 has a seventh hinge part 7021 and an eighth hinge part 7022 at both ends, the seventh hinge part 7021 is hinged to the head of the fourth push rod 701, and the eighth hinge part 7022 is connected to the fourth movable member 703;

[0081] The fourth movable member 703 is provided with a ninth hinge portion 7031, a tenth hinge portion 7033, and an eleventh hinge portion 7032. The ninth hinge portion 7031 and the tenth hinge portion 7033 are located at opposite ends of the fourth movable member 703, and the eleventh hinge portion 7032 is located in the middle of the fourth movable member 703 and is close to the ninth hinge portion 7031. The ninth hinge portion 7031 is hinged to the third mating part, the tenth hinge portion 7033 is connected to the electrode assembly 10, and the eleventh hinge portion 7032 is connected to the eighth hinge portion 7022 of the third movable member 702. The fourth movable member 703 is driven to swing by the extension and retraction of the fourth push rod 701.

[0082] When the third clamping mechanism 7 is working, the controller controls the extension and retraction of the fourth push rod 701. Power can be transmitted to the fourth movable member 703 through the third movable member 702, thereby driving the fourth movable member 703 to swing around the ninth hinge part 7031, so that the electrode assembly 10 on the fourth movable member 703 is in contact with or away from the lower arc-shaped surface of the insulator 9.

[0083] It should be noted that in this embodiment, the first clamping mechanism 5, the second clamping mechanism 6, and the third clamping mechanism 7 are not only used to adjust the contact between the electrode assembly 10 and the insulator 9, but also to achieve stable clamping of the insulator 9 string, so that the test mechanism is stably connected to the insulator 9 and the test mechanism is prevented from falling off.

[0084] In addition, in this embodiment, each clamping mechanism is connected to a set of electrode assemblies 10 for collecting electrical parameters such as leakage current and dielectric loss of the insulator 9, thereby achieving zero-value detection. Specifically, as shown... Figure 3-5 As shown, the electrode assembly 10 includes an arc-shaped clip made of brass, the curvature of which matches the surface of the insulator 9. Multiple electrode contact points, made of conductive material and evenly distributed on the inner wall of the arc-shaped clip, can be provided to ensure good contact with the surface of the insulator 9 and avoid poor contact due to surface contamination. A connecting wire can be welded to the back of the arc-shaped clip, through which electrical signals can be transmitted to the signal acquisition port of the controller.

[0085] The controller in this embodiment is the core of the testing mechanism, mainly used to control the movement of the sliding mechanism and the clamping mechanism, and to process the detection data. Generally, the controller uses an industrial-grade microcontroller as the main control chip, equipped with auxiliary modules such as an ADC module, a motor drive module, a wireless communication module, and a power management module. The controller is fixed to the side of one of the mounting plates 101 by bolts. Through the controller's built-in program, the position of the sliding mechanism can be adjusted; the clamping and releasing of the insulator 9 can be controlled; simultaneously, the controller can collect the electrical parameters of the electrode assembly 10, perform data filtering and amplification, and determine whether the insulator 9 has a zero value. The detection results are then transmitted to the control host 11 via the wireless communication module.

[0086] The specific detection process based on the above-mentioned insulator zero-value detection device in this embodiment is as follows:

[0087] First, connect the drone to the testing mechanism of this embodiment, and control the drone to take off and fly along the preset route to the top or side of the power transmission line where the insulator 9 to be tested is located.

[0088] Using a drone and a high-definition camera mounted on the testing facility, the center of the mounting space of the mounting bracket 1 in the testing facility is aligned with the center of the insulator string 9.

[0089] The controller then drives each sliding mechanism to move to the corresponding insulator 9 position, thus achieving alignment.

[0090] Then, control the actions of each clamping mechanism to clamp the insulator 9. At this time, the test mechanism is installed in place and the drone is detached from the test mechanism.

[0091] When performing automatic testing on insulator strings of 9, the controller will control the first clamping mechanism 5, the second clamping mechanism 6, and the third clamping mechanism 7 to operate sequentially, causing the electrode assembly 10 to contact the surface of the insulator 9. The detection circuit will then perform zero-value detection on each insulator 9, starting from one end of the string and proceeding to test each insulator 9 one by one. Figure 6 For example, the specific process is as follows:

[0092] like Figure 6 As shown in Figure a, when the test mechanism is installed on the insulator 9, in the initial state, the first clamping mechanism 5 is located on the front front side of the first insulator 9, the second clamping mechanism 6 is located between the first insulator 9 and the second insulator 9, and the third clamping mechanism 7 is located between the second insulator 9 and the third insulator 9, and the first clamping mechanism 5, the second clamping mechanism 6, and the third clamping mechanism 7 all clamp the insulator 9.

[0093] Subsequently, the controller connects the electrode assembly 10 of the first clamping mechanism 5 and the second clamping mechanism 6 to detect the first insulator 9, and collects and transmits the detection data to the control host 11 in real time;

[0094] Once the first insulator 9 has been tested, as Figure 6 As shown in Figure b, the controller connects the electrode assembly 10 of the second clamping mechanism 6 and the third clamping mechanism 7 to detect the second insulator 9; at this time, the first clamping mechanism 5 releases the insulator 9 and moves under the drive of the first sliding mechanism 2 to between the third insulator 9 and the fourth insulator 9, and then re-clamps the insulator 9, as shown in Figure b. Figure 6 As shown in c;

[0095] After the second insulator 9 has been tested, as Figure 6 As shown in Figure c, the controller connects the electrode assembly 10 of the third clamping mechanism 7 and the first clamping mechanism 5 to detect the third insulator 9; at this time, the second clamping mechanism 6 releases the insulator 9 and moves between the fourth and fifth insulators 9 under the drive of the second sliding mechanism 3, and re-clamps the insulator 9, as shown in Figure c. Figure 6 As shown in d.

[0096] After the third insulator 9 has been tested, as follows Figure 6 As shown in Figure d, the electrode assembly 10 of the first clamping mechanism 5 and the second clamping mechanism 6 is connected to detect the fourth insulator 9; at this time, the third clamping mechanism 7 releases the insulator 9 and moves to between the fifth and sixth insulators 9 under the drive of the third sliding mechanism 4, and then re-clamps the insulator 9, as shown in Figure d. Figure 6 As shown in e.

[0097] By sequentially activating the electrode assemblies 10 of adjacent clamping mechanisms in the manner described above, and controlling the clamping assemblies to move backward in sequence, multiple insulators 9 can be detected sequentially. Throughout the process, the controller monitors the operating status and detection data of each mechanism in real time to ensure that the detection process is continuous and accurate.

[0098] After all insulators 9 have been tested, the drone is controlled to fly to the fixed hook 8 of the test mechanism and connects the drone's connecting hook to the fixed hook 8 of the test mechanism. Then, the controller controls the push rods of each clamping mechanism to fully retract, so that the electrode assembly 10 separates from the surface of the insulator 9. The drone then drives the test mechanism to detach from the insulator 9 and return to the ground.

[0099] It should be noted that when the overall length of the 9 insulator strings is greater than the length of the testing mechanism, refer to... Figure 7 The testing facility is moved in a manner that is as follows:

[0100] by Figure 7 Taking the state shown in Figure A as an example, at this time, the controller connects the electrode assembly 10 of the second clamping mechanism 6 and the third clamping mechanism 7 to detect the second insulator 9. In this state, the second clamping mechanism 6 and the third clamping mechanism 7 keep the insulator 9 clamped, the first clamping mechanism 5 releases the insulator 9, and then the second sliding mechanism 3 and the third sliding mechanism 4 rotate synchronously, so that the second clamping mechanism 6 and the third clamping mechanism 7 move synchronously to the left end of the mounting bracket 1. Correspondingly, the mounting bracket 1 will move to the right relative to the insulator 9. Figure 7 As shown in Figure B; after the mounting bracket 1 is moved into place, the first sliding mechanism 2 can be controlled to drive the first clamping mechanism 5 to move to the next insulator 9 to be tested.

[0101] It should be noted that, in combination Figure 8 and Figure 9As shown, in this embodiment, the insulator can also be tested manually by the control host 11. In this embodiment, the control host 11 interacts with the testing mechanism through a wireless communication module. The control host 11 includes a host grip 1101, a trigger button 1102, a display screen 1103, a buzzer 1104, and an LED light 1105. During the testing process, the operator can grab the host grip 1101 to take the control host, and then press the switch button 1106 to turn on the control host 11. After that, the control host 11 automatically wirelessly pairs and connects with the testing mechanism. Once the connection is complete, various testing operations can be performed. The test device can be controlled to apply voltage to the insulator for testing by pressing the trigger button 1102. In this embodiment, a power switch 1106 and a charging port 1107 are provided on the top of the control host 11. The power switch 1106 is mainly used for powering on and off. The charging port 1107 uses a Type-C interface and is connected to the internal power supply. Outdoors, it can be powered by the internal power supply first. When the power supply is depleted, the control host 11 can be charged by a power bank, outdoor power supply, or other devices. The control host 11 interacts with the wireless communication unit of the testing institution through a communication unit. The test results from the testing institution can be received by the communication unit and transmitted to the internal signal processing unit of the control host 11. After analysis by the signal processing unit, the test results are output to the display screen 1103 and the buzzer 1104 and LED light 1105 are activated.

[0102] For the control host 11, the test results are mainly indicated in three ways: firstly, through the buzzer 1104, if the test result is normal, the buzzer will sound briefly; if the result is zero, the buzzer will sound continuously; secondly, through the LED 1105, if the test result is normal, the LED will light up green; if the result is zero, the LED will light up red; thirdly, it can be read directly through the display screen 1103, if the test result is normal, the display screen 1103 will display "Normal"; if the result is zero, the display screen 1103 will display "Zero".

[0103] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A zero-value detection device for insulators adapted for drone hoisting, comprising a control host and a testing mechanism, characterized in that, The testing mechanism includes a mounting bracket, a sliding mechanism, and a clamping mechanism; The mounting bracket includes mounting plates and connecting rods. Two mounting plates are arranged at intervals relative to each other, and the two mounting plates are fixed together by multiple connecting rods to form a frame assembly. The frame assembly has a U-shaped installation space inside. The sliding mechanism includes a first sliding mechanism, a second sliding mechanism, and a third sliding mechanism. The first sliding mechanism is located on the upper side of the mounting bracket, the second sliding mechanism is located in the upper middle of the mounting bracket, and the third sliding mechanism is located on the lower side of the mounting bracket. The clamping mechanism includes a first clamping mechanism, a second clamping mechanism, and a third clamping mechanism, all of which are connected to an electrode assembly. The first clamping mechanism is located on the side of the mounting bracket and is connected to a first sliding mechanism. The second clamping mechanism is located in the middle of the mounting bracket and is connected to a second sliding mechanism. The third clamping mechanism is located on the side of the mounting bracket and is connected to a third sliding mechanism.

2. The insulator zero-value detection device according to claim 1, characterized in that, The first sliding mechanism includes a first drive motor, a first screw, a first connecting block, and a first guide rod; Two first guide rods are distributed on the upper side of the mounting bracket, and the end of each first guide rod is fixedly connected to the mounting plate. The first screw is located between the two first guide rods, and the ends of the first screw are respectively connected to the mounting plate. One end of the first screw passes through the mounting plate on the same side and extends out to the first connecting part, which is connected to the first drive motor. The first connecting block is provided with a first threaded hole and a first guide hole. The first threaded hole is located in the middle of the first connecting block and is threadedly connected to the first screw. The two first guide holes are located opposite each other on both sides of the first threaded hole and are connected to the first guide rod. The two ends of the first connecting block are respectively provided with a first mating part, which is used to connect the first clamping mechanism.

3. The insulator zero-value detection device according to claim 2, characterized in that, The first sliding mechanism includes a second drive motor, a second screw, a second connecting block, and a second guide rod; The second screw is located below the first screw, and the ends of the second screw are respectively connected to the mounting plate. One end of the second screw passes through the mounting plate on the same side and extends out to the second connecting part, which is connected to the second drive motor. The second guide rod is located between the first screw and the second screw, and the end of the second guide rod is fixedly connected to the mounting plate; The second connecting block is provided with a second threaded hole and a second guide hole. The second threaded hole is located in the middle of the first connecting block and is threadedly connected to the second screw. The second guide hole is close to one end of the second connecting block and is connected to the second guide rod. The other end of the second connecting block is provided with a second mating part, which is used to connect the second clamping mechanism.

4. The insulator zero-value detection device according to claim 3, characterized in that, The third sliding mechanism includes a third drive motor, a third screw, a third connecting block, and a third guide rod; The third guide rod is located on the lower side of the mounting bracket, and the ends of the third guide rod are fixedly connected to the mounting plate. A third screw is provided above the third guide rod, and the ends of the third screw are respectively connected to the mounting plate. One end of the third screw passes through the mounting plate on the same side and extends out to a third connecting part. The third connecting part is respectively connected to a first drive motor. The third connecting block is provided with a third threaded hole and a third guide hole. The third threaded hole is located in the middle of the third connecting block and is threadedly connected to the third screw. The third guide hole is close to one end of the third connecting block and is connected to the third guide rod. The other end of the third connecting block is provided with a third mating part, which is used to connect to the third clamping mechanism.

5. The insulator zero-value detection device according to claim 2, characterized in that, The first clamping mechanism includes a first movable member, a second movable member, a first push rod, and a second push rod; The two sets of the first movable parts and the two sets of the second movable parts are respectively disposed opposite to each other at the ends of the first connecting block; Each set of first movable parts is provided with a first hinge, a second hinge, and a third hinge. The first hinge and the second hinge are located opposite each other at the ends of the first movable parts, and the third hinge is located at the middle of the first movable parts and is close to the first hinge. The first push rod is located between the first hinges of the two sets of first movable parts, and the head or tail of the first push rod is connected to the first hinge. The third hinge is connected to the first mating part of the first connecting block, and the second hinge is connected to the second movable part. Each group of second movable parts is provided with a fourth hinge, a fifth hinge, and a sixth hinge. The fourth and fifth hinges are located at the ends of the second movable parts, and the sixth hinge is located in the middle of the second movable part and is close to the fourth hinge. Each group of second movable parts corresponds to a second push rod. The fourth hinge connects to the head of the second push rod, and the tail of the second push rod is connected to the middle of the second movable part. The fifth hinge connects to the electrode assembly, and the sixth hinge connects to the third hinge of the first movable part.

6. The insulator zero-value detection device according to claim 3, characterized in that, The second clamping mechanism includes a third push rod, which is fixedly connected to the second mating part of the second connecting block. The head of the third push rod faces the mounting space and is connected to the electrode assembly.

7. The insulator zero-value detection device according to claim 4, characterized in that, The third clamping mechanism includes a third movable component, a fourth movable component, and a fourth push rod; The fourth push rod is located below the third connecting block, and the extension direction of the fourth push rod is perpendicular to the length direction of the mounting bracket; the tail of the fourth push rod is hinged to the third mating part, and the head of the fourth push rod is connected to the third movable part; The third movable member has a seventh hinge and an eighth hinge at both ends. The seventh hinge is hinged to the head of the fourth push rod, and the eighth hinge is connected to the fourth movable member. The fourth movable member is provided with a ninth hinge, a tenth hinge, and an eleventh hinge. The ninth and tenth hinges are located at opposite ends of the fourth movable member, and the eleventh hinge is located in the middle of the fourth movable member and is close to the ninth hinge. The ninth hinge is hinged to the third mating part, the tenth hinge is connected to the electrode assembly, and the eleventh hinge is connected to the eighth hinge of the third movable member. The fourth movable member is driven to swing by the extension and retraction of the fourth push rod.

8. The insulator zero-value detection device according to claim 1, characterized in that, It also includes a controller, which is fixed to the side of one of the mounting plates and is electrically connected to the sliding mechanism and the clamping mechanism respectively.

9. The insulator zero-value detection device according to claim 8, characterized in that, The mounting bracket is provided with a fixing hook at the upper part or end, which is used to cooperate with the connecting hook of the drone.

10. The insulator zero-value detection device according to claim 8, characterized in that, The electrode assembly includes an arc-shaped clip, the inner wall of which is provided with multiple electrode contact points.

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