A noise reduction anti-shake device applied to an unmanned aerial vehicle-mounted ultrasonic detection module

Abstract

The utility model discloses a kind of noise reduction anti-shake devices applied to unmanned aerial vehicle mounting ultrasonic detection module, including the connecting frame connected to the bottom of unmanned aerial vehicle, detection device is hung through multiple pulling ropes below the connecting frame, these pulling ropes are provided with multiple interval pull rope devices from top to bottom equal interval, and pulling rope is balanced and fixed. The present application significantly reduces the interference of unmanned aerial vehicle rotor bottom noise on ultrasonic detection module, improves discharge defect detection accuracy, solves the pain point of large traditional manual positioning error;And through the anti-shake structure of design interval pull rope device, ensure the stability of detection device in flight process, eliminate the detection blind area caused by device shaking, improve inspection efficiency.

Description

Technical Field

[0001] This utility model relates to the design of overhead line inspection devices, specifically to a noise reduction and anti-sway device for use with an ultrasonic detection module mounted on a drone. Background Technology

[0002] In the field of power system operation and maintenance, overhead lines, as the core carrier of power transmission, directly determine the stability and security of power supply. With the continuous expansion of power grid coverage, overhead lines often need to traverse complex geographical environments such as mountains, hills, and rivers, posing significant challenges to line inspection work. Currently, the industry still mainly relies on the traditional method of manual handheld testing equipment for overhead line inspection. While this method is technically mature, it has revealed many insurmountable limitations in actual operation and can no longer meet the needs of efficient operation and maintenance of modern power grids. From the perspective of operational difficulty, manual inspection requires personnel to carry testing equipment to the location of the line. Some line towers can reach heights of tens of meters, requiring personnel to climb towers for high-altitude operations, which is not only physically demanding but also carries safety risks such as falls and electric shock. Furthermore, for overhead lines traversing remote mountainous areas and swampy regions, accessibility is extremely poor, often requiring personnel to spend a significant amount of time traveling to and from the site, further increasing the difficulty and time cost of the operation.

[0003] The current overhead line inspection mode based on manual handheld devices has obvious shortcomings in terms of operational safety, detection accuracy, maintenance efficiency and cost control. There is an urgent need for a new technology solution that can break through the limitations of traditional inspection and achieve efficient and accurate detection of discharge defects in overhead lines. Utility Model Content

[0004] The purpose of this invention is to provide a noise reduction and anti-shake device for use with ultrasonic detection modules mounted on UAVs in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A noise reduction and anti-sway device for an ultrasonic detection module mounted on a drone includes a connecting frame connected to the bottom of the drone. The detection device is suspended below the connecting frame by multiple pull ropes. These pull ropes are provided with multiple interval pull ropes at equal intervals from top to bottom to balance and fix the pull ropes.

[0006] Preferably, the connecting frame is a cross shape formed by two connecting rods intersecting, and the connecting frame is fixedly connected to the bottom of the drone.

[0007] Preferably, the four ends of the cross-shaped connecting frame are fixedly connected to the upper end of the traction rope via a top pull rope component, and the lower end of the traction rope is connected to the detection device via a bottom pull rope component.

[0008] Preferably, four interval rope pullers are provided, which are connected to the pull rope at equal intervals from top to bottom; The interval pull rope device includes a ring-shaped pull rope device body. The pull rope device body has four connecting ears evenly arranged along its circumference. These four connecting ears are connected to the pull rope through the middle pull rope component. The connecting ears are provided with thread holes, and the pull rope passes through the thread holes.

[0009] Preferably, both the middle pull rope component and the bottom pull rope component include a locking cap and a columnar pull rope component body. Multiple locking clips are provided on the upper part of the pull rope component body. A guide hole is provided in the middle of both the pull rope component body and the locking cap. The lower end of the pull rope component body is fixedly connected to the connecting ear, and the guide hole corresponds to the wire hole. The pull rope passes through the guide hole and the thread hole. The locking cap is threadedly engaged with the main body of the pull rope component, and the conical groove inside the locking cap presses against the locking clip to clamp the pull rope.

[0010] Preferably, the lower part of the bottom pull cord component is also formed with a connecting handle, which is fixedly connected to the detection device by screws.

[0011] Preferably, the pull rope is made of PE wire with a diameter of 0.8mm.

[0012] The beneficial effects are as follows: First, this application significantly reduces the interference of UAV rotor noise on the ultrasonic detection module, improves the accuracy of discharge defect detection, and solves the problem of large positioning errors in traditional manual methods. Second, by designing an anti-sway structure for the interval pull rope device, it ensures the stability of the detection device during flight, eliminates blind spots caused by device swaying, and improves inspection efficiency. Third, the overall structure is lightweight and easy to install, adaptable to different UAV models, reduces maintenance costs, and avoids the safety risks of manual high-altitude operations, fully meeting the needs of efficient, accurate, and safe inspection of modern power grid overhead lines. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is the front view of the noise reduction and anti-shake device of this utility model applied to the ultrasonic detection module mounted on a drone; Figure 2 This is a perspective view of the noise reduction and anti-shake device of this utility model applied to the ultrasonic detection module mounted on a drone; Figure 3 yes Figure 2 Enlarged view of the A-section structure; Figure 4 This is a structural diagram of the middle pull rope component of the noise reduction and anti-sway device of the present invention applied to the ultrasonic detection module mounted on a drone; Figure 5 This is a perspective view from below of the noise reduction and anti-shake device of the present invention applied to the ultrasonic detection module mounted on a drone. Figure 6 yes Figure 5 Enlarged view of the structure of section B; Figure 7 This is a bottom view of the noise reduction and anti-shake device of the present invention, which is applied to the ultrasonic detection module mounted on a drone. The annotations in the attached figures are explained as follows: 1. Unmanned aerial vehicle (UAV); 2. Pull rope; 3. Interval pull rope device; 301. Pull rope device body; 302. Connecting ear; 4. Middle pull rope component; 401. Pull rope component body; 402. Guide hole; 403. Locking clip; 404. Locking cap; 5. Bottom pull rope component; 501. Connecting handle; 6. Detection device; 7. Connecting frame; 8. Top pull rope component. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] See Figures 1-7 As shown, this utility model provides a noise reduction and anti-shake device for an ultrasonic detection module mounted on a drone. It includes a connecting frame 7 connected to the bottom of the drone 1. A detection device 6 is suspended below the connecting frame 7 by multiple pull ropes 2. These pull ropes 2 are provided with multiple interval pull ropes 3 at equal intervals from top to bottom to balance and fix the pull ropes 2.

[0017] With the above structure, the connecting frame 7 serves as a transition structure between the UAV 1 and the detection device 6, achieving a stable connection between the two and providing a supporting foundation for the subsequent suspension structure; multiple traction ropes 2 form a multi-point suspension system, avoiding tilting caused by single-point force on the detection device 6; the rope separators, through equal spacing, provide lateral constraints on the traction ropes 2, constructing a three-dimensional stable frame.

[0018] In this application, the above solution solves the problem in the prior art where manual handheld devices require workers to climb poles to carry them. By using a drone 1 to mount the device, the risk of falls and electric shocks from high-altitude operations is completely eliminated. Furthermore, it eliminates the need for workers to travel to remote areas, solving the problem of transportation inconvenience. The combination of multiple pull ropes 2 and interval pull ropes 3 effectively suppresses the swaying amplitude of the detection device 6 during the flight of the drone 1, preventing data distortion caused by device swaying.

[0019] As a preferred technical solution in this case, the connecting frame 7 is a cross-shaped structure formed by two connecting rods intersecting, and the connecting frame 7 is fixedly connected to the bottom of the UAV 1. The four ends of the cross-shaped connecting frame 7 are respectively fixedly connected to the upper end of the traction rope 2 through the top pull rope 8, and the lower end of the traction rope 2 is connected to the detection device 6 through the bottom pull rope 5. In this embodiment, four interval pull ropes 3 are provided, which are connected to the traction rope 2 at equal intervals from top to bottom. The four interval pull ropes 3 form four layers of lateral constraints, constructing an anti-sway system. The four layers of interval pull ropes 3 divide the traction rope 2 into five equal-length segments, and the sway amplitude of each segment cancels each other out. Compared with the structure without interval pull ropes 3, the overall sway amplitude of the detection device 6 is reduced, ensuring the stability of the acoustic signal collected by the ultrasonic detection module and reducing the interference of rotor noise on the detection signal. The cross-shaped structure distributes the force on the bottom of the UAV 1 to the four ends through the cross design, avoiding local stress concentration. Moreover, the symmetrical distribution of the cross-shaped structure ensures the balance of the connecting frame 7 itself and prevents the UAV 1 from deviating in flight attitude due to the weight of the connecting frame 7.

[0020] refer to Figure 3 As shown, the interval pull rope device 3 includes an annular pull rope device body 301. Four connecting ears 302 are evenly arranged circumferentially along the edge of the pull rope device body 301. These four connecting ears 302 are respectively connected to the pull rope 2 through a central pull rope component 4. Each connecting ear 302 has a threading hole through which the pull rope 2 passes. The annular pull rope device body 301 and the evenly distributed connecting ears 302 ensure that the pull rope 2 is symmetrically distributed, guaranteeing force balance. In this embodiment, the pull rope 2 connected at its four ends forms a regular tetrahedral force-bearing structure, further improving the stability of the detection device 6.

[0021] In some embodiments, reference Figure 4As shown, both the intermediate pull rope component 4 and the bottom pull rope component 5 include a locking cap 404 and a columnar pull rope component body 401. Multiple locking clips 403 are provided above the pull rope component body 401. Guide holes 402 are provided in the middle of both the pull rope component body 401 and the locking cap 404. The lower end of the pull rope component body is fixedly connected to a connecting ear, and the guide hole corresponds to a threaded hole. The pull rope 2 passes through the guide hole 402 and the threaded hole. The locking cap 404 is threadedly engaged with the pull rope component body 401, and the conical groove inside the locking cap 404 presses against the locking clips 403 to clamp the pull rope 2. In this embodiment, the threaded locking structure can adjust the clamping force according to the tension of the pull rope 2, preventing the detection device 6 from falling due to loosening of the pull rope 2. Simultaneously, the uniform pressing of the locking clips 403 ensures consistent force on the pull rope 2, preventing the detection device 6 from tilting due to localized loosening and ensuring the stability of the ultrasonic detection module's detection height.

[0022] Optionally, the lower part of the bottom pull rope component 5 is also formed with a connecting handle 501, which is fixedly connected to the detection device 6 by screws.

[0023] In this application, the pull rope 2 is made of PE wire with a diameter of 0.8mm. The weight of a single 0.8mm PE wire is only 1 / 5 of that of a traditional steel wire, and the total weight of four pull ropes 2 is less than 50g, which will not significantly increase the load of the UAV 1, ensuring the endurance of the UAV 1 and solving the problem of "short endurance and small coverage" of traditional heavy-duty mounting devices. Moreover, the breaking strength of PE wire can reach more than 50kg, far exceeding the weight of the detection device 6 (1.5-3kg), ensuring high safety. At the same time, it is resistant to acids and alkalis and UV rays, and can still maintain stable performance in environments ranging from -30℃ to 60℃, adapting to the inspection needs of overhead lines crossing complex environments such as mountains and rivers. Compared with the limitations of manual handheld equipment, which is "susceptible to environmental influences and has a high failure rate", the reliability of the equipment is improved.

[0024] It should be noted that the detection device 6 integrates three-modal sensors: visible light, infrared thermal imaging, and acoustic imaging. It also has a built-in 4G wireless transmission module, which supports real-time transmission of detection data and enables precise location of discharge defects. This is an existing detection device and will not be described in detail in this application.

[0025] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A noise reduction and anti-shake device for use with an ultrasonic detection module mounted on a drone, characterized in that: The device includes a connecting frame attached to the bottom of the drone. A detection device is suspended below the connecting frame by multiple pull ropes. These pull ropes are equipped with multiple interval pullers at equal intervals from top to bottom to balance and fix the pull ropes.

2. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 1, characterized in that: The connecting frame is a cross shape formed by two connecting rods intersecting, and the connecting frame is fixedly connected to the bottom of the drone.

3. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 2, characterized in that: The four ends of the cross-shaped connecting frame are fixed to the upper end of the traction rope via the top pull rope component, and the lower end of the traction rope is connected to the detection device via the bottom pull rope component.

4. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 3, characterized in that: The interval rope puller is provided in four places, which are connected to the pull rope at equal intervals from top to bottom; The interval pull rope device includes a ring-shaped pull rope device body. The pull rope device body has four connecting ears evenly arranged along its circumference. These four connecting ears are connected to the pull rope through the middle pull rope component. The connecting ears are provided with thread holes, and the pull rope passes through the thread holes.

5. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 4, characterized in that: Both the middle pull rope component and the bottom pull rope component include a locking cap and a columnar pull rope component body. Multiple locking clips are provided on the upper part of the pull rope component body. A guide hole is provided in the middle of both the pull rope component body and the locking cap. The lower end of the pull rope component body is fixedly connected to the connecting ear, and the guide hole corresponds to the wire hole. The pull rope passes through the guide hole and the thread hole. The locking cap is threaded with the pull rope body and the tapered groove inside the locking cap presses the locking clip to clamp the pull rope.

6. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 5, characterized in that: The lower part of the bottom pull rope component is also formed with a connecting handle, which is fixedly connected to the detection device by screws.

7. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 4, characterized in that: The interval rope puller is provided in four parts.

8. The noise reduction and anti-shake device for an ultrasonic detection module mounted on a UAV according to claim 1, characterized in that: The pull rope is made of PE wire with a diameter of 0.8mm.

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