A power line inspection drone and its emergency landing protection device

Abstract

This invention discloses a power line inspection drone and its emergency landing protection device, belonging to the field of power line inspection drones. The drone includes a frame with a camera located in the center. The emergency landing protection device includes a gravity acceleration sensor for controlling an electric sliding rod, the sensor being fixedly connected to the upper surface of the frame. A piston cylinder is fixedly connected to the side wall of the electric sliding rod, and a slide block is fixedly connected to the inner wall of an arc-shaped plate. The slider is slidably connected within the slide block. This invention, by incorporating a camera, enables the drone to inspect power equipment during flight. The piston rod and piston cylinder cause the four arc-shaped plates to close when the electric sliding rod slides upward, reducing the device's size and impact range. Simultaneously, the airbag inflates to protect the camera, mitigating the impact force on the camera.

Description

Technical Field

[0001] This invention relates to the field of power line inspection drone technology, specifically to a power line inspection drone and its emergency landing protection device. Background Technology

[0002] With the continuous development of economy and science and technology, various power systems have also been improved. In recent years, the application of drones in power systems has become more and more widespread. The effective application of drones has promoted the sustainable development of the power industry. The application scope of power systems is relatively wide. Therefore, the traditional power management system can no longer meet the current development needs of the power industry. The application of drones has solved related problems, reduced the difficulty of power construction, and solved the problem of regional inspection.

[0003] Power line inspection drones (UAVs) can carry specialized equipment such as visible light and infrared thermal imaging to conduct high-precision inspections of power lines. Most models can hover at a fixed point, allowing for more detailed and in-depth video analysis of suspected hidden dangers or fault points. Using drones for power line inspection greatly improves work efficiency and the accuracy of inspection results, while also saving a significant amount of manpower costs. It is foreseeable that the application of drones in power line inspection has a very broad prospect.

[0004] During use, drones will face various situations, such as severe weather, falling rocks from mountains, accidental collisions with branches or birds, which may cause the drone to lose control and crash. If it falls from a high altitude without protective devices, the drone may suffer fatal damage or even be irreparable. Summary of the Invention

[0005] The purpose of this invention is to provide a power line inspection drone and its emergency landing protection device, which has the advantages of facilitating power line inspection and preventing crash damage, and solves the problem that drones are easily damaged after falling without protective devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a power line inspection drone, comprising a frame, an electric sliding rod slidably connected to the middle of the frame, a mounting rod slidably connected to the middle of the electric sliding rod, a camera mounted on the bottom of the mounting rod, four arc-shaped plates rotatably connected to the side of the frame, mounting frames fixedly connected to the outer walls of the four arc-shaped plates, mounting seats slidably connected to the side of the mounting frames, blades rotatably connected to the middle of the mounting seats, shock-absorbing feet fixedly connected to the lower surface of the mounting frames, shock-absorbing springs sleeved on the shock-absorbing feet, and the two ends of the shock-absorbing springs fixedly connected to the mounting frames and the shock-absorbing feet, respectively.

[0007] An emergency landing protection device for a power line inspection drone includes a gravity acceleration sensor for controlling an electric sliding rod. The gravity acceleration sensor is fixedly connected to the upper surface of the frame. A piston cylinder is fixedly connected to the side wall of the electric sliding rod. A piston rod is slidably connected inside the piston cylinder. A slider is fixedly connected to the end of the piston rod. A slide block is fixedly connected to the inner wall of the arc-shaped plate. The slider is slidably connected inside the slide block.

[0008] Preferably, a rotating rod is rotatably connected to the upper surface of the frame, a lifting rod is slidably connected to the top of the rotating rod, a connecting block is fixedly connected to the top of the mounting rod, the lifting rod is rotatably connected to the connecting block, a lever is fixedly connected to the side wall of the electric slide rod, a hollow strip is fixedly connected to the side wall of the rotating rod, and the lever is slidably connected inside the hollow strip.

[0009] Preferably, a limiting rod is fixedly connected to the bottom of the lifting rod, a hole is opened in the rotating rod to cooperate with the limiting rod, and a first spring is fixedly connected between the bottom of the limiting rod and the rotating rod.

[0010] Preferably, an airbag is fixedly connected to the upper part of the camera inside the mounting rod, and an air tube is fixedly connected to the end of the piston cylinder, with the end of the air tube away from the piston cylinder being fixedly connected to the airbag.

[0011] Preferably, a connecting rod is fixedly connected to the side of the mounting base, and a rectangular plate is fixedly connected to the end of the connecting rod. A cavity is provided in the mounting frame to slide with the rectangular plate. A pull rod is fixedly connected to the side of the rectangular plate away from the connecting rod. A hole is provided in the mounting frame to cooperate with the pull rod. A second spring is sleeved on the pull rod. The two ends of the second spring abut against the rectangular plate and the mounting frame, respectively. A pull rope is fixedly connected to the end of the pull rod away from the rectangular plate, and the end of the pull rope away from the pull rod is fixedly connected to the frame.

[0012] Preferably, the bottom of the mounting rod is fixedly connected to a mounting cylinder, the side wall of the rectangular plate is in contact with the inner wall of the mounting frame, a pressure pipe is fixedly connected to the side wall of the mounting cylinder, and the end of the pressure pipe away from the mounting cylinder is connected to the cavity inside the mounting frame.

[0013] Preferably, a parachute is fixedly connected inside the mounting cylinder, and a cover plate is installed at the end of the mounting cylinder, with the end face of the cover plate fixedly connected to the parachute.

[0014] Preferably, a slide is fixedly connected to the end face of the mounting cylinder, an electric locking block is slidably connected to the slide, and a gyroscope for controlling the sliding of the electric locking block is provided on the side wall of the mounting cylinder.

[0015] Preferably, a retaining ring is fixedly connected to the side wall of the mounting cylinder, the retaining ring is intermittently in contact with the lower end face of the electric slide rod, and a sealing ring is placed on the side of the retaining ring facing the electric slide rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This invention enables drones to inspect power equipment while in flight by setting up cameras.

[0018] 2. By setting up a piston rod and piston cylinder, the electric slide rod drives the four arc-shaped plates to close when it slides upward, thereby reducing the size of the device and reducing the impact range of the device. At the same time, the airbag expands and protects the camera, reducing the impact force on the camera.

[0019] 3. By setting up a mounting frame and a rectangular plate, the present invention allows air in the mounting frame cavity to enter the mounting cylinder when the entire device retracts, making it easier for the parachute to deploy.

[0020] 4. By setting a retaining ring and a sealing ring, the space where the camera is located inside the electric slide rod is sealed, which can prevent the device from falling into the water and causing water to enter the electric slide rod and damage the camera. After the four arc plates are closed, the middle of the four arc plates is hollow, so the device that falls on the water surface can float, so that the device will not be soaked in water for too long and it is easy to retrieve later. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the UAV of the present invention;

[0022] Figure 2 This is a schematic diagram of the emergency landing protection device of the present invention in operation.

[0023] Figure 3 This is a schematic diagram of the structure of the slide of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the electric sliding rod of the present invention;

[0025] Figure 5 This is a schematic diagram of the airbag structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure at the rotating rod of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure at the first spring of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the mounting bracket of the present invention;

[0029] Figure 9 For the present invention Figure 8 A schematic diagram of the structure of part A;

[0030] Figure 10 This is a schematic diagram of the structure of the electric card block in this invention.

[0031] In the diagram: 1. Frame; 11. Electric slide bar; 12. Mounting rod; 13. Camera; 14. Arc plate; 15. Mounting bracket; 16. Mounting seat; 17. Blade; 18. Shock-absorbing support foot; 19. Shock-absorbing spring; 2. Gravity acceleration sensor; 21. Piston cylinder; 22. Piston rod; 23. Slider; 24. Slide seat; 25. Air pipe; 26. Airbag; 3. Connecting rod; 31. Rectangular plate; 32. Pull rod; 33. Second spring; 34. Pull rope; 35. Pressurization pipe; 4. Mounting cylinder; 41. Retaining ring; 42. Sealing ring; 43. Parachute; 44. Cover plate; 45. Gyroscope; 46. Slide table; 47. Electric locking block; 5. Toggle lever; 51. Rotating rod; 52. Hollow strip; 53. Lifting rod; 54. Limiting rod; 55. First spring; 56. Connecting block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Reference Figure 1 The present invention provides a technical solution: a power inspection drone, including a frame 1, an electric slide rod 11 slidably connected to the middle of the frame 1, a mounting rod 12 slidably connected to the middle of the electric slide rod 11, a camera 13 mounted on the bottom of the mounting rod 12, an arc plate 14 rotatably connected to the side of the frame 1, a mounting frame 15 fixedly connected to the outer wall of the arc plate 14, a mounting seat 16 slidably connected to the side of the mounting frame 15, a blade 17 rotatably connected to the middle of the mounting seat 16, a shock-absorbing foot 18 fixedly connected to the lower surface of the mounting frame 15, a shock-absorbing spring 19 sleeved on the shock-absorbing foot 18, and the two ends of the shock-absorbing spring 19 fixedly connected to the mounting frame 15 and the shock-absorbing foot 18 respectively.

[0035] The frame 1 serves as the overall framework of the device, allowing the various components of the device to be installed. The power supply for powering the device is installed on the frame 1 (not shown in the figure). The other sensing components used to control the lifting and moving of the device are all controlled by existing components and will not be described in detail here. When the blades 17 on the mounting base 16 rotate, they can provide lift for the entire device. The shock-absorbing legs 18 are telescopic structures. The impact force generated when the drone lands normally is not large. The retraction of the shock-absorbing legs 18 and the shock-absorbing springs 19 can buffer the drone's landing. After the drone takes off, the camera 13 at the bottom of the mounting rod 12 can be used to inspect the power equipment.

[0036] Example 2

[0037] Reference Figure 3 and Figure 4 An emergency landing protection device for a power inspection drone used in Embodiment 1 is provided. The upper surface of the frame 1 is fixedly connected to a gravity acceleration sensor 2 for controlling the sliding of an electric slide bar 11. A piston cylinder 21 is fixedly connected to the side wall of the electric slide bar 11. A piston rod 22 is slidably connected inside the piston cylinder 21. A slider 23 is fixedly connected to the end of the piston rod 22. A slide seat 24 is fixedly connected to the inner wall of the arc plate 14. The slider 23 is slidably connected inside the slide seat 24.

[0038] The power supply for controlling the sliding of the electric slider 11 is a backup power supply and is not shared with the normal operating power supply of the drone. When the drone's power is depleted or other unforeseen circumstances cause the blade 17 to stop rotating, the drone will be in a state of weightlessness. In this state, the drone will fall rapidly, increasing the g-value. When the gravity acceleration sensor 2 detects that the drone is in a falling state, it will control the electric slider 11 to slide. At this time, the electric slider 11 can... Figure 3 When the electric slide bar 11 slides upward, it can drive the camera 13 to slide upward. At the same time, the piston cylinder 21 on the side wall of the electric slide bar 11 drives the piston rod 22 to slide upward synchronously with the electric slide bar 11. At this time, the slider 23 on the piston rod 22 can slide within the slide block 24. Then, the upward slider 23 can drive the arc plate 14 to swing towards the middle of the frame 1. Since the piston cylinder 21 and the piston rod 22 are slidably connected, the upward movement of the electric slide bar 11 will not be interfered with. When the four arc plates 14 move upward synchronously to the closed state, the four arc plates 14 form a sphere. At this time, the sphere formed by the four arc plates 14 will protect the camera 13.

[0039] Reference Figure 4 and Figure 6A rotating rod 51 is rotatably connected to the upper surface of the frame 1. A lifting rod 53 is slidably connected to the top of the rotating rod 51. A connecting block 56 is fixedly connected to the top of the mounting rod 12. The lifting rod 53 is rotatably connected to the connecting block 56. A lever 5 is fixedly connected to the side wall of the electric slide rod 11. A hollow strip 52 is fixedly connected to the side wall of the rotating rod 51. The lever 5 is slidably connected inside the hollow strip 52.

[0040] As the electric slide bar 11 slides upward, the lever 5 fixedly connected to the side wall of the electric slide bar 11 moves upward simultaneously. At this time, the lever 5 slides inside the hollow strip 52 on the side wall of the rotating rod 51. The upward-moving lever 5 can then drive the hollow strip 52 to swing vertically. As a result, the lifting rod 53 can slide relative to the rotating rod 51, thereby increasing the combined length of the lifting rod 53 and the rotating rod 51. The lifting rod 53 can then lift the mounting rod 12 upward through the connecting block 56, so that the mounting rod 12 slides upward along with the electric slide bar 11 and also slides upward relative to the electric slide bar 11. At this time, the camera 13 at the bottom of the mounting rod 12 can be stored inside the electric slide bar 11, thus protecting the camera 13.

[0041] Reference Figure 6 and Figure 7 The bottom of the lifting rod 53 is fixedly connected to a limiting rod 54, and the rotating rod 51 has a hole that cooperates with the limiting rod 54. A first spring 55 is fixedly connected between the bottom of the limiting rod 54 and the rotating rod 51.

[0042] The first spring 55 ensures that the lifting rod 53 is always subjected to a repulsive force against the rotating rod 51. This makes it easier for the lifting rod 53 to move away from the rotating rod 51 when the rotating rod 51 swings vertically. The limiting rod 54 limits the connection between the lifting rod 53 and the rotating rod 51, ensuring that the lifting rod 53 and the rotating rod 51 only move in a straight line towards or away from each other. To avoid the situation where it is difficult to drive the rotating rod 51 to swing vertically when the electric slide rod 11 moves upward, an inclination angle can be set at the edge of the upper end face of the electric slide rod 11, so that the side wall of the rotating rod 51 contacts the surface with this inclination angle. At this time, the upward movement of the electric slide rod 11 is driven by the push of the lever 5 and the joint push of the upper end face of the electric slide rod 11, which makes the swing of the rotating rod 51 more effortless.

[0043] Example 3

[0044] Reference Figure 3 , Figure 4 and Figure 5 Furthermore, based on Embodiment 2, an airbag 26 is fixedly connected to the upper part of the camera 13 inside the mounting rod 12, and an air tube 25 is fixedly connected to the end of the piston cylinder 21. The end of the air tube 25 away from the piston cylinder 21 is fixedly connected to the airbag 26.

[0045] A groove is provided on the upper part of the camera 13 located at the bottom of the mounting rod 12. This groove can be used to install the airbag 26. When the drone is in normal use, the arc plate 14 is fully extended, and there is sufficient space between the piston rod 22 and the piston cylinder 21. At this time, the piston cylinder 21 contains air, while the airbag 26 is in a contracted state. Therefore, the airbag 26 will not inflate during normal use, and thus will not obstruct the image captured by the camera 13. When the four arc plates 14 are closed, the slider 23 slides along the trajectory of the slide block 24, thereby causing the piston rod 22 to slide into the piston cylinder 21. At this time, the air inside the piston cylinder 21 is compressed by the piston rod 22. The compressed air enters the airbag 26 through the air tube 25. At this time, the airbag 26 inflates and wraps around the camera 13, so that the camera 13 can be cushioned. Since the upward sliding speed of the mounting rod 12 is faster than the upward sliding speed of the electric slide rod 11, and the expansion of the airbag 26 is affected by the upward sliding speed of the electric slide rod 11, the mounting rod 12 can slide completely into the interior of the electric slide rod 11 before the airbag 26 is fully inflated. This avoids the situation where the sliding between the electric slide rod 11 and the mounting rod 12 is jammed due to the airbag 26.

[0046] Reference Figure 2 and Figure 8 A connecting rod 3 is fixedly connected to the side of the mounting base 16, and a rectangular plate 31 is fixedly connected to the end of the connecting rod 3. A cavity is opened in the mounting frame 15 to slide with the rectangular plate 31. A pull rod 32 is fixedly connected to the side of the rectangular plate 31 away from the connecting rod 3. A hole is opened in the mounting frame 15 to cooperate with the pull rod 32. A second spring 33 is sleeved on the pull rod 32. The two ends of the second spring 33 abut against the rectangular plate 31 and the mounting frame 15 respectively. A pull rope 34 is fixedly connected to the end of the pull rod 32 away from the rectangular plate 31. The end of the pull rope 34 away from the pull rod 32 is fixedly connected to the frame 1.

[0047] When the arc plate 14 swings and closes towards the center, the mounting bracket 15, which is fixedly connected to the outer wall of the arc plate 14, swings synchronously with the arc plate 14. At this time, the arc plate 14 drives the mounting seat 16 to swing. When the mounting bracket 15 swings, the pull rope 34 pulls the pull rod 32. At this time, the pull rod 32 will pull the rectangular plate 31. The rectangular plate 31 will slide relative to the mounting bracket 15. Then, the rectangular plate 31 slides into the interior of the mounting bracket 15. At this time, the connecting rod 3 slides into the cavity inside the mounting bracket 15. Then, the mounting seat 16 is driven to slide towards the mounting bracket 15, which reduces the unfolding distance of the mounting seat 16. When the arc plate 14 is completely closed, the mounting seat 16 contacts the mounting bracket 15, thereby reducing the impact range received by the UAV.

[0048] Example 4

[0049] Reference Figure 8 , Figure 9 and Figure 10 Based on Embodiment 3, the bottom of the mounting rod 12 is further fixedly connected to the mounting cylinder 4, the side wall of the rectangular plate 31 is in contact with the inner wall of the mounting frame 15, and a pressure tube 35 is fixedly connected to the side wall of the mounting cylinder 4. The end of the pressure tube 35 away from the mounting cylinder 4 is connected to the cavity inside the mounting frame 15.

[0050] Because the rectangular plate 31 is attached to the inner wall of the mounting frame 15, when the rectangular plate 31 slides into the interior of the mounting frame 15, the air in the cavity of the mounting frame 15 can enter the mounting cylinder 4 through the pressurization pipe 35, which increases the pressure in the mounting cylinder 4. When the arc plate 14 is completely closed, the entire center of gravity of the device is transferred to the opposite side of the frame 1. At this time, the device will flip when it falls, which will allow the camera 13 to fall from the upper part of the device, thus making the camera 13 more secure.

[0051] Reference Figure 2 , Figure 8 , Figure 9 and Figure 10 A parachute 43 is fixedly connected inside the mounting cylinder 4, and a cover plate 44 is installed at the end of the mounting cylinder 4. The end face of the cover plate 44 is fixedly connected to the parachute 43.

[0052] When the air in the mounting frame 15 cavity enters the mounting cylinder 4, the air pressure in the mounting cylinder 4 increases. At this time, the pressure on the cover plate 44 increases. Since the cover plate 44 is fixedly connected to the parachute 43, when the cover plate 44 is ejected by air pressure, it can bring the parachute 43 out, so that the parachute 43 can be deployed quickly.

[0053] Reference Figure 2 , Figure 8 , Figure 9 and Figure 10 A slide 46 is fixedly connected to the end face of the mounting cylinder 4, and an electric locking block 47 is slidably connected to the slide 46. A gyroscope 45 is provided on the side wall of the mounting cylinder 4 to control the sliding of the electric locking block 47.

[0054] After the arc plate 14 closes, the center of gravity of the device changes, and the entire device flips. After the device flips 180 degrees, the gyroscope 45 detects the flip angle of the device and controls the electric locking block 47 to slide on the slide table 46. At this time, the two electric locking blocks 47 move away from each other, and the cover plate 44 is no longer blocked by the electric locking blocks 47. Then, under the action of the air pressure in the mounting cylinder 4, the cover plate 44 pops out instantly. At this time, the cover plate 44 drives the parachute 43 fixedly connected to it to move to the outside of the mounting cylinder 4. Then the parachute 43 unfolds to buffer the overall descent of the device.

[0055] Reference Figure 2 , Figure 8 , Figure 9 and Figure 10 A retaining ring 41 is fixedly connected to the side wall of the mounting cylinder 4. The retaining ring 41 is intermittently in contact with the lower end face of the electric slide rod 11. A sealing ring 42 is placed on the side of the retaining ring 41 facing the electric slide rod 11.

[0056] When the mounting rod 12 moves upward, the mounting cylinder 4 and the retaining ring 41, which are fixedly connected to the bottom of the mounting rod 12, move synchronously. At this time, the retaining ring 41 can contact the end face of the electric slide rod 11. Since the retaining ring 41 is provided with a sealing ring 42, when the electric slide rod 11 contacts the retaining ring 41, the space where the camera 13 is located inside the electric slide rod 11 is sealed, which can prevent the device from falling into the water and causing water to enter the electric slide rod 11 and damage the camera 13. After the four arc plates 14 are closed, the middle part of the four arc plates 14 forms a hollow, so that the device that falls on the water surface can also float, so that the device will not be soaked in water for too long and it is easy to retrieve later.

[0057] Working principle: The power inspection drone and its emergency landing protection device use a frame 1 as the overall frame of the device, so that the various components of the device can be installed. The power supply for powering the device is installed on the frame 1 (not shown in the figure). The other sensing components used to control the lifting and moving of the device are all controlled by existing components, which will not be described in detail here. When the blades 17 on the mounting base 16 rotate, they can provide lift for the entire device. The shock-absorbing legs 18 are telescopic structures. The impact force generated when the drone lands normally is not large. The retraction of the shock-absorbing legs 18 and the shock-absorbing springs 19 can buffer the drone's landing. After the drone takes off, it can inspect the power equipment through the camera 13 at the bottom of the mounting rod 12.

[0058] The power supply for controlling the sliding of the electric slider 11 is a backup power supply and is not shared with the normal operating power supply of the drone. When the drone's power is depleted or other unforeseen circumstances cause the blade 17 to stop rotating, the drone will be in a state of weightlessness. In this state, the drone will fall rapidly, increasing the g-value. When the gravity acceleration sensor 2 detects that the drone is in a falling state, it will control the electric slider 11 to slide. At this time, the electric slider 11 can... Figure 3When the electric slide bar 11 slides upward, it can drive the camera 13 to slide upward. At the same time, the piston cylinder 21 on the side wall of the electric slide bar 11 drives the piston rod 22 to slide upward synchronously with the electric slide bar 11. At this time, the slider 23 on the piston rod 22 can slide in the slide block 24. Then, the upward slider 23 can drive the arc plate 14 to swing towards the middle of the frame 1. Since the piston cylinder 21 and the piston rod 22 are slidably connected, the upward movement of the electric slide bar 11 will not be interfered with. When the four arc plates 14 move upward synchronously to the closed state, the four arc plates 14 form a sphere. At this time, the sphere formed by the four arc plates 14 will protect the camera 13.

[0059] As the electric slide bar 11 slides upward, the lever 5 fixedly connected to the side wall of the electric slide bar 11 moves upward synchronously. At this time, the lever 5 slides inside the hollow strip 52 on the side wall of the rotating rod 51. The upward-moving lever 5 can drive the hollow strip 52 to swing vertically. At this time, the lifting rod 53 can slide relative to the rotating rod 51, thereby increasing the common length of the lifting rod 53 and the rotating rod 51. At this time, the lifting rod 53 can lift the mounting rod 12 upward through the connecting block 56, so that the mounting rod 12 slides upward with the electric slide bar 11 and also slides upward relative to the electric slide bar 11. At this time, the camera 13 at the bottom of the mounting rod 12 can be stored inside the electric slide bar 11, thus protecting the camera 13.

[0060] The first spring 55 ensures that the lifting rod 53 is always subjected to a repulsive force against the rotating rod 51. This makes it easier for the lifting rod 53 to move away from the rotating rod 51 when the rotating rod 51 swings vertically. The limiting rod 54 limits the connection between the lifting rod 53 and the rotating rod 51, ensuring that the lifting rod 53 and the rotating rod 51 only move in a straight line towards or away from each other. To avoid the situation where it is difficult to drive the rotating rod 51 to swing vertically when the electric slide rod 11 moves upward, an inclination angle can be set at the edge of the upper end face of the electric slide rod 11, so that the side wall of the rotating rod 51 contacts the surface with this inclination angle. At this time, the upward movement of the electric slide rod 11 is driven by the push of the lever 5 and the joint push of the upper end face of the electric slide rod 11, which makes the swing of the rotating rod 51 more effortless.

[0061] A groove is provided on the upper part of the camera 13 located at the bottom of the mounting rod 12. This groove can be used to install the airbag 26. When the drone is in normal use, the arc plate 14 is fully extended, and there is sufficient space between the piston rod 22 and the piston cylinder 21. At this time, the piston cylinder 21 contains air, while the airbag 26 is in a contracted state. Therefore, the airbag 26 will not inflate during normal use, and thus will not obstruct the image captured by the camera 13. When the four arc plates 14 are closed, the slider 23 slides along the trajectory of the slide block 24, thereby causing the piston rod 22 to slide into the piston cylinder 21. At this time, the air in the piston cylinder 21 is compressed by the piston rod 22. The compressed air enters the airbag 26 through the air tube 25. At this time, the airbag 26 inflates and wraps around the camera 13, so that the camera 13 can be cushioned. Since the mounting rod 12 slides up faster than the electric slide rod 11, and the inflation of the airbag 26 is affected by the upward sliding speed of the electric slide rod 11, the mounting rod 12 can slide completely into the interior of the electric slide rod 11 before the airbag 26 is fully inflated. This avoids the situation where the sliding between the electric slide rod 11 and the mounting rod 12 is jammed due to the airbag 26.

[0062] When the arc plate 14 swings and closes towards the center, the mounting bracket 15, which is fixedly connected to the outer wall of the arc plate 14, swings synchronously with the arc plate 14. At this time, the arc plate 14 drives the mounting seat 16 to swing. When the mounting bracket 15 swings, the pull rope 34 pulls the pull rod 32. At this time, the pull rod 32 will pull the rectangular plate 31. The rectangular plate 31 will slide relative to the mounting bracket 15. Then, the rectangular plate 31 slides into the interior of the mounting bracket 15. At this time, the connecting rod 3 slides into the cavity inside the mounting bracket 15. Then, the mounting seat 16 is driven to slide towards the mounting bracket 15, which reduces the unfolding distance of the mounting seat 16. When the arc plate 14 is completely closed, the mounting seat 16 contacts the mounting bracket 15, thereby reducing the impact range received by the UAV.

[0063] Because the rectangular plate 31 is attached to the inner wall of the mounting frame 15, when the rectangular plate 31 slides into the interior of the mounting frame 15, the air in the cavity of the mounting frame 15 can enter the mounting cylinder 4 through the pressurization pipe 35, which increases the pressure in the mounting cylinder 4. When the arc plate 14 is completely closed, the entire center of gravity of the device is transferred to the opposite side of the frame 1. At this time, the device will flip when it falls, which will allow the camera 13 to fall in the upper position of the device, making the camera 13 more secure. After the air in the cavity of the mounting frame 15 enters the mounting cylinder 4, the air pressure in the mounting cylinder 4 increases. At this time, the pressure on the cover plate 44 increases. Since the cover plate 44 is fixedly connected to the parachute 43, when the cover plate 44 is ejected by air pressure, it can bring out the parachute 43, which can quickly deploy.

[0064] After the arc plate 14 is closed, the center of gravity of the device changes. At this time, the device flips over. After the device flips 180 degrees, the gyroscope 45 detects the flip angle of the device and controls the electric locking block 47 to slide on the slide table 46. At this time, the two electric locking blocks 47 move away from each other, so the cover plate 44 is no longer blocked by the electric locking block 47. Then, under the action of the air pressure in the mounting cylinder 4, the cover plate 44 pops out instantly. At this time, the cover plate 44 drives the parachute 43 fixedly connected to it to move to the outside of the mounting cylinder 4. Then the parachute 43 unfolds to buffer the overall descent of the device.

[0065] When the mounting rod 12 moves upward, the mounting cylinder 4 and the retaining ring 41, which are fixedly connected to the bottom of the mounting rod 12, move synchronously. At this time, the retaining ring 41 can contact the end face of the electric slide rod 11. Since the retaining ring 41 is provided with a sealing ring 42, when the electric slide rod 11 contacts the retaining ring 41, the space where the camera 13 is located inside the electric slide rod 11 is sealed, which can prevent the device from falling into the water and causing water to enter the electric slide rod 11 and damage the camera 13. After the four arc plates 14 are closed, the middle part of the four arc plates 14 forms a hollow, so that the device that falls on the water surface can also float, so that the device will not be soaked in water for too long and it is easy to retrieve later.

[0066] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power line inspection drone, comprising a frame (1), characterized in that: An electric slide rod (11) is slidably connected to the middle of the frame (1), and an installation rod (12) is slidably connected to the middle of the electric slide rod (11). A camera (13) is installed at the bottom of the installation rod (12). Four arc-shaped plates (14) are rotatably connected to the side of the frame (1). An installation frame (15) is fixedly connected to the outer wall of each of the four arc-shaped plates (14). An installation seat (16) is slidably connected to the side of the installation frame (15). A blade (17) is rotatably connected to the middle of the installation seat (16). A shock-absorbing foot (18) is fixedly connected to the lower surface of the installation frame (15). A shock-absorbing spring (19) is sleeved on the shock-absorbing foot (18). The two ends of the shock-absorbing spring (19) are fixedly connected to the installation frame (15) and the shock-absorbing foot (18) respectively. It also includes an emergency landing protection device, which includes a gravity acceleration sensor (2) for controlling the electric slide bar (11). The gravity acceleration sensor (2) is fixedly connected to the upper surface of the frame (1). A piston cylinder (21) is fixedly connected to the side wall of the electric slide bar (11). A piston rod (22) is slidably connected inside the piston cylinder (21). A slider (23) is fixedly connected to the end of the piston rod (22). A slide block (24) is fixedly connected to the inner wall of the arc plate (14). The slider (23) is slidably connected inside the slide block (24). A rotating rod (51) is rotatably connected to the upper surface of the frame (1). A lifting rod (53) is slidably connected to the top of the rotating rod (51). A connecting block (56) is fixedly connected to the top of the mounting rod (12). The lifting rod (53) is rotatably connected to the connecting block (56). A lever (5) is fixedly connected to the side wall of the electric slide rod (11). A hollow strip (52) is fixedly connected to the side wall of the rotating rod (51). The lever (5) is slidably connected inside the hollow strip (52). An airbag (26) is fixedly connected inside the mounting rod (12) above the camera (13), and an air tube (25) is fixedly connected to the end of the piston cylinder (21). The end of the air tube (25) away from the piston cylinder (21) is fixedly connected to the airbag (26). The bottom of the mounting rod (12) is fixedly connected to the mounting cylinder (4); A retaining ring (41) is fixedly connected to the side wall of the mounting cylinder (4). The retaining ring (41) is intermittently in contact with the lower end face of the electric slide rod (11). A sealing ring (42) is placed on the side of the retaining ring (41) facing the electric slide rod (11).

2. The power line inspection drone according to claim 1, characterized in that: The bottom of the lifting rod (53) is fixedly connected to a limiting rod (54), and the rotating rod (51) has a hole that cooperates with the limiting rod (54). A first spring (55) is fixedly connected between the bottom of the limiting rod (54) and the rotating rod (51).

3. The power line inspection drone according to claim 1, characterized in that: A connecting rod (3) is fixedly connected to the side of the mounting base (16), and a rectangular plate (31) is fixedly connected to the end of the connecting rod (3). A cavity is opened in the mounting frame (15) to slide with the rectangular plate (31). A pull rod (32) is fixedly connected to the side of the rectangular plate (31) away from the connecting rod (3). A hole is opened in the mounting frame (15) to cooperate with the pull rod (32). A second spring (33) is sleeved on the pull rod (32). The two ends of the second spring (33) abut against the rectangular plate (31) and the mounting frame (15) respectively. A pull rope (34) is fixedly connected to the end of the pull rod (32) away from the rectangular plate (31). The end of the pull rope (34) away from the pull rod (32) is fixedly connected to the frame (1).

4. The power line inspection drone according to claim 3, characterized in that: The side wall of the rectangular plate (31) is attached to the inner wall of the mounting frame (15), and a pressure pipe (35) is fixedly connected to the side wall of the mounting cylinder (4). One end of the pressure pipe (35) away from the mounting cylinder (4) is connected to the cavity inside the mounting frame (15).

5. The power line inspection drone according to claim 4, characterized in that: A parachute (43) is fixedly connected inside the mounting cylinder (4), and a cover plate (44) is installed at the end of the mounting cylinder (4). The end face of the cover plate (44) is fixedly connected to the parachute (43).

6. The power line inspection drone according to claim 5, characterized in that: A slide (46) is fixedly connected to the end face of the mounting cylinder (4), and an electric locking block (47) is slidably connected on the slide (46). A gyroscope (45) for controlling the sliding of the electric locking block (47) is provided on the side wall of the mounting cylinder (4).

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