An unmanned aerial vehicle based beacon light replacement device

Abstract

The application provides a beacon light replacement device based on a UAV, which comprises an adjusting mechanism, a clamping mechanism and a nut dismounting mechanism, the adjusting mechanism is connected with the UAV and is arranged below the UAV, the adjusting mechanism comprises a height adjusting part and an angle adjusting part, the height adjusting part comprises a second electric push rod arranged vertically, the fixed end of the second electric push rod is fixedly installed below the UAV, the angle adjusting part comprises an adjusting frame, a rotating seat, a second motor and a rotating mechanism, the upper end of the rotating seat is provided with a connecting shaft, the lower end of the adjusting frame is rotationally connected with the connecting shaft through a rolling bearing, the second motor is fixedly installed on one side of the adjusting frame, the output shaft of the second motor and the connecting shaft are provided with gear wheels which are meshed with each other, the rotating mechanism is arranged in the rotating seat, and the action end of the second electric push rod is fixedly connected with the upper side of the adjusting frame. The application can replace the beacon light more efficiently and more safely.

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, and in particular relates to a UAV-based navigation light replacement device. Background Technology

[0002] During long-term use, solar-powered navigation lights are subject to harsh environments such as marine climate, salt spray corrosion, ultraviolet radiation, and the impact of wind and waves. As a result, the light body and solar panels are prone to aging and damage, reduced light transmittance, and insufficient luminous brightness. The energy storage battery will also experience capacity decay due to repeated charging and discharging, which will affect the navigation reliability of the navigation light. Therefore, it is necessary to replace and maintain faulty parts or the entire light regularly. Currently, the replacement of solar-powered navigation lights mainly relies on traditional manual methods. Maintenance personnel are transported by ship to the installation location (such as buoys, reefs, or navigation markers). They then approach the installation point by climbing or hoisting, manually disassembling the old light body and its components before installing and testing the new solar-powered navigation light. This method has several drawbacks: First, it is inefficient, as the dispersed distribution of navigation lights and the complex marine environment mean that navigating to the work site takes a significant amount of time. Second, it is unsafe, as maintenance personnel face risks of falls and drowning while climbing and working at heights. Third, existing technology lacks specialized replacement equipment tailored to the structural characteristics of solar-powered navigation lights. General-purpose mechanical devices are poorly compatible with navigation lights, easily causing damage to the light body, solar panels, and other components, affecting the subsequent use of the navigation light.

[0003] Therefore, to solve the above problems, a more efficient, safer device that can also prevent damage to navigation lights is needed for the transportation and replacement of navigation lights. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a drone-based navigation light replacement device to solve the technical problem of low efficiency in replacing navigation lights in the prior art.

[0005] To achieve the above and other related objectives, the present invention provides a navigation light replacement device based on a drone, which is fixedly installed on the drone and located below the drone, comprising:

[0006] An adjustment mechanism is connected to the drone and located below the drone. The adjustment mechanism includes a height adjustment section and an angle adjustment section. The height adjustment section includes a vertically arranged second electric push rod, the fixed end of which is fixedly installed below the drone. The angle adjustment section includes an adjustment frame, a rotating seat, a second motor, and a rotation mechanism. The adjustment frame is vertically fixedly installed on the actuating end of the second electric push rod. The upper end of the rotating seat has a connecting shaft. The lower end of the adjustment frame is rotatably connected to the connecting shaft through a rolling bearing. The second motor is fixedly installed on one side of the adjustment frame. The output shaft of the second motor and the connecting shaft have meshing gears. The rotation mechanism is located inside the rotating seat. The actuating end of the second electric push rod is fixedly connected to the upper side of the adjustment frame.

[0007] A clamping mechanism, connected to the angle adjustment unit, is used to clamp the navigation light;

[0008] A nut removal and installation mechanism is provided on the clamping mechanism and is used to tighten or loosen bolts.

[0009] In this way, the height and angle of the clamping mechanism can be precisely controlled through the adjustment mechanism, ensuring the navigation light maintains a stable posture during hoisting and adapting to installation environments with complex sea conditions. The clamping mechanism is designed according to the shape characteristics of the solar-powered navigation light, reliably securing the light body and preventing damage caused by vibration during transportation. The nut removal and installation mechanism, in conjunction with a preset program, can automatically complete the removal of old light bolts and the tightening of new light bolts without manual intervention. When a drone carries this device, it can quickly reach the target location, significantly improving replacement efficiency, reducing safety risks, and effectively solving the problems of low efficiency, high risk, and easily damaged equipment associated with traditional methods. The height of the clamping mechanism is adjusted via a second electric push rod to adapt to the replacement needs of navigation lights in different installation locations; a second motor drives gear transmission, causing the rotating seat to rotate around the connecting shaft, achieving angle adjustment of the clamping mechanism in the horizontal plane and ensuring that the navigation light maintains the correct posture throughout the hoisting process.

[0010] Optionally, the rotating mechanism includes a rotating shaft and a third motor. The rotating base has a mounting groove, and the third motor is fixedly mounted in the mounting groove by a bracket, with the output end of the third motor facing vertically downwards. The rotating shaft is fixedly connected to the output shaft of the third motor via a coupling, and the rotating shaft is rotatably connected to the rotating base via rolling bearings. The lower end of the rotating shaft is connected to the clamping mechanism. The third motor drives the rotating shaft to rotate via the coupling, enabling fine-tuning of the clamping mechanism's attitude in the vertical plane, further ensuring precise alignment during the installation of the navigation light.

[0011] Optionally, the clamping mechanism includes a frame, a first clamping part, and a second clamping part. The frame is fixedly connected to the lower end of the rotating shaft. Both the first clamping part and the second clamping part are mounted on the frame. The frame has symmetrically arranged mounting plates on both sides. The mounting plates are n-shaped and vertically arranged. The first clamping part includes a first driving part and a clamping seat. The first driving part is mounted on the mounting plate, and the clamping seats are symmetrically and movably disposed between the mounting plates. The first driving part drives the clamping seats to move closer or further apart. Using this clamping mechanism, stable clamping and precise positioning of the navigation light can be achieved, ensuring that the navigation light does not slip or shift during replacement.

[0012] Optionally, the first drive unit includes a first electric push rod, a pull plate, and a fixed shaft. The first electric push rod is vertically installed in the middle above the mounting plate. The top end of the first electric push rod's actuating end is rotatably connected to two pull plates. The pull plates are symmetrically and obliquely arranged on both sides below the first electric push rod. The fixed shaft is horizontally arranged, with both ends fixedly connected to the mounting plate and located below the pull plates. The clamping seat is slidably arranged on the fixed shaft. The lower end of the pull plate is rotatably connected to the clamping seat. The first electric push rod drives the clamping seats to move closer or further apart on the fixed shaft. The clamping seat includes a moving plate and a clamping block. The moving plate is horizontally arranged, with both ends respectively inserted and slidably engaged with the fixed shaft. The clamping block is fixedly installed in the middle of the moving plate. The lower side of the clamping block has a horizontal bend, with the bend direction facing the clamping block on the other side. The first electric push rod is used to pull the clamping seats closer together when the first electric push rod is shortened, thereby clamping and supporting the navigation light. The L-shaped clamping blocks effectively prevent the navigation light from falling. The second clamping part prevents the navigation light from shaking during transportation and keeps the navigation light stable under the frame. During installation, the second clamping part can also fix the position of the navigation light in the middle of the frame, which is convenient for positioning the navigation light.

[0013] Optionally, the second clamping part includes a second driving part and a clamping plate. The second driving part is disposed on the frame. The clamping plate is symmetrically slidably disposed on the frame via a linear slide rail module and is located between the mounting plates. A protective layer made of flexible material is provided on the opposite side of the clamping plate. The second driving part drives the clamping plates to move closer or further apart from each other.

[0014] Optionally, the second drive unit includes a first motor and a rack. The first motor is fixedly mounted on the frame, with its output end facing downwards and vertically arranged. Two racks are arranged horizontally and parallel to each other, located on both sides of the output end of the first motor, with their tooth surfaces facing inwards. One end of each rack is fixedly connected to the clamping plate, and the other end is inserted into and slidably engaged with the clamping plate on the other side. The output end of the first motor has a gear that meshes with the racks. When the first motor starts, it synchronously drives the two racks to move in opposite directions or towards each other in the horizontal direction through the gears, thereby driving the clamping plates on both sides to slide on the linear slide rail module to clamp or release the workpiece. During the clamping process, the protective layer made of flexible material effectively avoids damage to the workpiece surface, improving clamping safety and stability.

[0015] Optionally, the nut assembly / disassembly mechanism includes a fixed frame and assembly / disassembly parts. The fixed frame is arranged in a ring and fixedly mounted on the frame. The assembly / disassembly parts are arranged on the fixed frame, and the number of assembly / disassembly parts corresponds to the number of bolts to be fastened. Multiple assembly / disassembly parts are arranged on the fixed frame, evenly distributed along the ring. When multiple assembly / disassembly parts operate simultaneously, the operating efficiency can be significantly improved, ensuring balanced force distribution and avoiding localized stress concentration.

[0016] Optionally, the disassembly / assembly unit includes a third electric push rod, a connecting seat, a disassembly / assembly seat, and a third drive unit. The third electric push rod is vertically mounted on the fixed frame, with its actuating end facing downwards and fixedly connected to the connecting seat. The disassembly / assembly seat is fixedly mounted on the connecting seat, and the third drive unit is located on the disassembly / assembly seat for disassembling and assembling bolts. The third electric push rod drives the connecting seat and disassembly / assembly seat downwards as a whole, aligning the disassembly / assembly seat with the bolt position. After the third drive unit is activated, it completes the locking or unlocking of the nut through rotation. When multiple disassembly / assembly units operate simultaneously, operational efficiency can be significantly improved, ensuring balanced force distribution and avoiding localized stress concentration.

[0017] Optionally, the disassembly / assembly base is horizontally positioned, with a through disassembly hole at the end facing the navigation light. The base has an internal mounting chamber. The third drive unit includes a disassembly sleeve, a fourth motor, and a reduction gear. The disassembly sleeve is vertically rotatably mounted within the disassembly hole, and the reduction gear is rotatably mounted within the mounting chamber. The disassembly sleeve is hollow and has toothed grooves that engage with a nut. The outer side of the disassembly sleeve has teeth that mesh with the reduction gear. The fourth motor is located on the upper side of the disassembly base, with its output end facing downwards within the mounting chamber. The output end of the fourth motor has a gear that meshes with the reduction gear. The fourth motor drives the disassembly sleeve to rotate via the reduction gear, achieving automatic bolt fastening and disassembly. The disassembly hole and disassembly sleeve are coaxially positioned to ensure positioning accuracy. The connecting seat moves vertically with the third electric push rod, causing the disassembly / assembly base and disassembly sleeve to move closer to or away from the navigation light, thereby completing the bolt disassembly / assembly operation.

[0018] Optionally, the disassembly / removal base is equipped with a magnet, one end of which is positioned above the disassembly sleeve, and the magnet has a clearance groove coaxial with the disassembly sleeve. The magnet attracts the nut, preventing it from falling off.

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

[0020] When using this invention, the clamping mechanism can stably hold the navigation light, reducing impacts during replacement. The adjustment mechanism reduces wind disturbance, ensuring the navigation light's posture. On one hand, it facilitates the clamping mechanism to be placed on the old light for clamping during installation; on the other hand, it facilitates the accurate placement of the new navigation light on the lamp holder. Then, the nut removal and installation mechanism is used to remove or tighten the bolts, achieving automated and efficient replacement. Magnets attract the nuts, preventing the risk of falling from heights and improving operational safety. The coordinated control of each electric push rod and drive motor allows for precise adjustment of position and force, ensuring a smooth and reliable installation and removal process. The entire device has a compact structure, adapts to complex maritime environments, significantly reduces the difficulty and cost of manual maintenance, extends the service life of the navigation light, and ensures navigation safety. Attached Figure Description

[0021] Figure 1 The diagram shown is a schematic representation of the overall structure of the present invention.

[0022] Figure 2 Displayed as Figure 1 A schematic diagram of the structure after removing some components.

[0023] Figure 3 Displayed as Figure 2 A structural diagram from another location.

[0024] Figure 4 Displayed as Figure 3 A structural diagram from another angle after removing some components.

[0025] Figure 5 Displayed as Figure 4 A magnified structural diagram of point A in the middle.

[0026] Figure 6 The diagram shows the structure of the nut assembly / disassembly mechanism.

[0027] Figure 7 The diagram shown is a cross-sectional view of the disassembly base and the third drive unit of the present invention. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0029] Please see Figures 1 to 7 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0030] like Figures 1-7 As shown, the upper side of the navigation light holder 6 has several threaded posts 7 for fixing the navigation light. The threaded posts 7 are evenly distributed circumferentially and correspond to the mounting holes at the bottom of the navigation light 5. After the threaded posts 7 are inserted into the mounting holes at the bottom of the navigation light, a stable connection is achieved by tightening with nuts. The top of the threaded posts is provided with a guide chamfer to facilitate quick alignment of the navigation light during installation.

[0031] like Figure 1 As shown, a drone-based navigation light replacement device is fixedly installed on the drone and includes: an adjustment mechanism, a clamping mechanism 3, and a nut removal and installation mechanism 4. The adjustment mechanism is used to adjust the attitude of the navigation light 5 in the air to counteract the influence of wind and ensure that it hovers stably above the light base. The clamping mechanism 3 is used to grab and fix the navigation light to prevent displacement or falling during the replacement process. The nut removal and installation mechanism 4 uses electric drive to automatically remove and install bolts, and uses magnets to attract loose nuts to prevent falling objects from high altitudes. The coordinated operation of these mechanisms enables accurate, safe, and efficient replacement of navigation lights, improves the automation level of maritime operations, reduces maintenance risks and costs, and ensures the continued effectiveness of navigational aids.

[0032] like Figures 1-5 As shown in this embodiment, the adjustment mechanism includes a height adjustment unit 1 and an angle adjustment unit 2. The height adjustment unit 1 is connected to the UAV, and the angle adjustment unit 2 is connected to the height adjustment unit 1 and the clamping mechanism 3 respectively. The height adjustment unit 1 is used to adjust the position of the clamping mechanism 3 in the vertical direction, and the angle adjustment unit 2 is used to adjust the angle of the clamping mechanism 3 in the vertical plane and the horizontal plane. By adjusting the position of the clamping mechanism 3, on the one hand, it is convenient to clamp the old navigation light, and on the other hand, when installing the new navigation light, it ensures the installation posture of the new navigation light and ensures that it is accurately aligned with the light base, avoiding installation failure due to angle deviation.

[0033] Specifically, the height adjustment unit 1 includes a second electric push rod 11. The fixed end of the second electric push rod 11 is fixedly installed under the fuselage of the drone, and the moving end is fixedly connected to the angle adjustment unit 2. The electric push rod allows the height of the clamping mechanism 3 to be adjusted when the drone is hovering, facilitating the adjustment of the attitude of the clamping mechanism 3.

[0034] Specifically, the angle adjustment unit 2 includes an adjustment frame 21, a rotating seat 22, a second motor 23, and a rotating mechanism 24. The upper end of the adjustment frame 21 is vertically fixedly mounted on the top of the actuating end of the second electric push rod 11. A horizontally oriented connecting shaft 221 is fixedly mounted on the upper side of the rotating seat 22. The lower end of the adjustment frame 21 is rotatably connected to the connecting shaft 221 via a rolling bearing. The second motor 23 is fixedly mounted on one side of the adjustment frame 21, and the output shaft axis of the second motor 23 is parallel to the axis of the connecting shaft 221. Meshing gears are provided on the output shaft of the second motor 23 and the connecting shaft 221. When the second motor 23 rotates, it drives the connecting shaft 221 to rotate, thereby causing the rotating seat 22 to rotate in the vertical plane. Using the second motor 23, the rotating seat 22 can be driven to rotate, thereby adjusting the angle of the clamping mechanism 3 in the vertical direction and achieving precise control of the beacon light's pitch angle.

[0035] Specifically, a counterweight 211 is provided on the side of the adjustment frame 21 away from the second motor 23, so that the force on both sides of the adjustment frame 21 is consistent.

[0036] like Figures 4-5 As shown, in this embodiment, the rotating mechanism 24 is disposed within the rotating base 22, including a rotating shaft 241 and a third motor 242. The rotating base 22 has a mounting groove 222 inside, and the third motor 242 is fixedly mounted in the mounting groove 222 by a bracket, with the output end of the third motor 242 facing downwards. The rotating shaft 241 is vertically rotatably mounted on the rotating base 22 via rolling bearings, and the output end of the third motor 242 is fixedly connected to the rotating shaft 241. The lower end of the rotating shaft 241 is connected to the clamping mechanism 3. The rotating mechanism 24 enables the clamping mechanism 3 to rotate the navigation light in a horizontal plane. This facilitates the clamping mechanism 3 in gripping the navigation light and allows the navigation light to be accurately released onto the lamp holder when installing a new navigation light.

[0037] like Figures 1-4As shown, in this embodiment, the clamping mechanism 3 includes a frame 31, a first clamping part 32, and a second clamping part 33. A rotating shaft 241 is fixedly mounted at the center of the upper part of the frame 31. Both the first clamping part 32 and the second clamping part 33 are mounted on the frame 31. The frame 31 includes a horizontally arranged connecting frame 311 and mounting plates 312 symmetrically mounted on both sides of the connecting frame 311. The mounting plates 312 are n-shaped, with the center of the upper part of the mounting plates 312 fixed to one end of the connecting frame 311. The first clamping part 32 is located on the mounting plate 312, and the second clamping part 33 is located on the connecting frame 311. During clamping, the first clamping part 32 and the second clamping part 33 respectively clamp and position the navigation light. This reduces the shaking of the navigation light during transportation, preventing damage to the solar panel from impacts. Furthermore, the centered navigation light is better positioned, facilitating its release onto the lamp holder.

[0038] Specifically, the first clamping part 32 includes a first driving part 321 and a clamping seat 322. The first driving part 321 and the mounting plate 312 are arranged in pairs and symmetrically on both sides of the connecting frame 311. The first driving part 321 is located on the mounting plate 312. The clamping seats 322 are symmetrically and movably arranged between the two mounting plates 312. One end of the two clamping seats 322 in the same direction is connected to one of the adjacent first driving parts 321 at the same time. Using the first driving part 321, the two clamping seats 322 are driven to move closer or further away from each other, thereby grabbing and releasing the navigation light.

[0039] Specifically, the first drive unit 321 includes a first electric push rod 3211, a pull plate 3212, and a fixed shaft 3213. The first electric push rod 3211 is fixedly installed in the middle of the upper part of the mounting plate 312. The top end of the actuating end of the first electric push rod 3211 is rotatably connected to two pull plates 3212. The pull plates 3212 are symmetrically and inclinedly arranged on both sides below the first electric push rod 3211. The pull plates 3212 are inclined towards the clamping seat 322, and the lower end of the pull plates 3212 is rotatably connected to the clamping seat 322. The fixed shaft 3213 is horizontally arranged on the mounting plate 312, and both ends are fixedly connected to the mounting plate 312. It is located below the pull plates 3212. The clamping seat 322 is slidably arranged on the fixed shaft 3213. When the first electric push rod 3211 is actuated, it drives the clamping seat 322 to move on the fixed shaft 3213. The two pull plates 3212 can drive the clamping seats 322 on both sides to move closer or further apart.

[0040] Specifically, the clamping base 322 includes a movable plate 3221 and a clamping block 3222. The movable plate 3221 is horizontally arranged, and its two ends are respectively inserted and slidably engaged with the fixed shafts 3213 on both sides. The clamping block 3222 is fixedly installed in the middle of the movable plate 3221. The lower side of the clamping block 3222 has a horizontal bend, and the bending direction is towards the other clamping block 3222, making the clamping block 3222 L-shaped. The bending length of the clamping block 3222 does not exceed the distance from the outer surface of the navigation light to the solar panel. This can prevent the clamping block 3222 from contacting the solar panel and avoid damage to the solar panel during the clamping process. At the same time, the clamping block 3222 can be covered with sponge to further reduce bumps.

[0041] Specifically, the clamping block 3222 is provided with a number of universal balls 3223, which are horizontally arranged and face the inside of the clamping block 3222. Through the universal balls 3223, the second clamping part 33 can facilitate the movement of the navigation light towards the center when clamping, reducing the friction during movement.

[0042] In this embodiment, the second clamping part 33 includes a second driving part 331 and a clamping plate 332. The second driving part 331 is fixedly installed on the connecting frame 311. The clamping plate 332 is symmetrically slidably disposed on the connecting frame 311 through the linear slide rail module 333 and is located between the mounting plates 312. A protective layer 3321 made of flexible material is provided on the opposite side of the clamping plates 332. The second driving part 331 drives the clamping plates 332 to move closer or further away from each other.

[0043] Specifically, the second drive unit 331 includes a first motor 3311 and a rack 3312. The first motor 3311 is fixedly mounted on the connecting frame 311, with its output end facing downwards and vertically arranged. Two racks 3312 are arranged in parallel on both sides of the output shaft of the first motor 3311. The ends of the two racks 3312 that are far apart from each other are fixedly connected to clamping plates 332 on different sides, and the other ends are inserted into and slidably engaged with another clamping plate 332. The racks 3312 and the clamping plates 332 are arranged in a centrally symmetrical manner. The output shaft of the first motor 3311 is provided with gears that mesh with both racks 3312 simultaneously. When the first motor 3311 is started, the gears can pull the clamping plates 332 closer or further apart, thereby clamping the navigation light a second time. The second clamping can further prevent the navigation light from shaking, and can also push the navigation light from the clamping block 3222 to the middle position of the second clamping unit 33, making it easier to position the navigation light and subsequently release and install it.

[0044] Specifically, a visual positioning sensor 3214 is provided on the fixed shaft 3213. The position information of the clamping mechanism 3 is fed back by the visual positioning sensor 3214, so as to realize real-time monitoring and correction of the clamping position of the navigation light and ensure that the center position of the navigation light is always aligned with the preset installation point during the clamping process.

[0045] like Figures 6-7 As shown, in this embodiment, the nut removal and installation mechanism 4 includes a fixed frame 41 and a removal and installation part 42. The fixed frame 41 is a hollow ring and is fixedly installed on the frame 31 and located outside the clamping mechanism 3. The removal and installation part 42 is fixedly installed on the fixed frame 41, and the number corresponds to the number of nuts to be locked. The removal and installation part 42 includes a third electric push rod 421, a connecting seat 422, a removal and installation seat 423, and a third drive part 424. The third electric push rod 421 is vertically fixedly installed on the fixed frame 41, with the actuating end facing downward and fixedly connected to the connecting seat 422. The removal and installation seat 423 is fixedly installed on the connecting seat 422 and is horizontally arranged. The third drive part 424 is arranged on the removal and installation seat 423.

[0046] Specifically, the mounting base 423 has a through mounting hole 4231 at the end near the navigation light, and a limiting groove 4232 inside the mounting hole 4231. The mounting base 423 also has an installation chamber 4233 inside. The third drive unit 424 includes a disassembly sleeve 4241, a fourth motor 4242, and a reduction gear 4243. The disassembly sleeve 4241 is vertically and rotatably mounted in the mounting hole 4231, and its outer wall is provided with a limiting ring 4244 that matches the limiting groove 4232 to achieve circumferential fixation and axial sliding. In conjunction with this, the outer side of the disassembly sleeve 4241 is also provided with teeth that mesh with the reduction gear 4243. The reduction gear 4243 is rotatably mounted in the mounting chamber 4233 and engages with the teeth on the outer side of the disassembly sleeve 4241. The fourth motor 4242 is fixedly mounted on the disassembly and assembly base 423, with its output end facing downwards and located in the mounting chamber 4233. Its output end also has a gear that meshes with the reduction gear 4243. Through the reduction gear 4243, the disassembly sleeve 4241 is driven to rotate, achieving automatic tightening or loosening of the nut. When the fourth motor 4242 starts, it drives the disassembly sleeve 4241 to rotate after torque amplification by the reduction gear 4243. Simultaneously, the third electric push rod 421 drives the entire disassembly and assembly unit 42 to move up and down, aligning the disassembly sleeve 4241 with the nut on the navigation light. During the disassembly and assembly process, the vision sensor 3214 provides real-time feedback on position information to ensure precise alignment of the disassembly sleeve 4241. After the sleeve 4241 is put into the nut, the third electric push rod 421 continues to press down, causing the limiting ring 4244 to slide along the limiting groove 4232, maintaining the axial pressure of the sleeve and preventing slippage, thereby completing the locking or unlocking action of the nut and improving the automation level and installation accuracy.

[0047] Specifically, a guide rod 43 is vertically fixed to one side of the third electric push rod 421. The guide rod 43 is parallel to the third electric push rod 421, and a guide hole 4221 is correspondingly provided on the connecting seat 422. The guide rod 43 slides through the guide hole 4221 to enhance the stability of the third electric push rod 421 when it is pushed, and to prevent the disassembly and assembly seat 423 from deflecting or shaking during the lifting and lowering process, ensuring that the disassembly sleeve 4241 and the nut are coaxially aligned. A linear bearing can be installed between the guide rod 43 and the guide hole to reduce motion resistance and improve guiding accuracy, ensuring the smoothness of the disassembly and assembly operation and the accuracy of repeated positioning.

[0048] Specifically, a magnet 425 is installed on the disassembly / assembly base 423. One end of the magnet 425 is located above the disassembly sleeve 4241. The magnet 425 can be designed as a ring or open on one side, allowing it to contact the nut during disassembly or installation to attract the nut and prevent it from falling off during the process. The magnet 425 is made of high-strength permanent magnet material, ensuring stable attraction of the nut even under vibration, avoiding the risk of secondary falling. Combined with real-time positioning and feedback control from the vision sensor 3214, the system can dynamically adjust the downward pressure of the third electric push rod 421 and the output torque of the fourth motor 4242 at the moment of nut disassembly or installation, achieving closed-loop torque control and further improving operational reliability. The entire process requires no manual intervention and is suitable for navigation light maintenance operations under complex marine conditions, significantly improving work efficiency and safety.

[0049] Specifically, during its patrol, the drone can also monitor the operational status of navigation lights in real time. Using its onboard high-definition camera and infrared sensor, it collects images of the light's operation and temperature data, transmitting the information back to the shore-based control center. The system can then determine if the navigation light has a malfunctioning light source, damaged casing, or abnormal tilting.

[0050] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. An unmanned aerial vehicle (UAV)-based beacon light replacement device, fixedly installed on the UAV, located below the UAV, characterized in that, The utility model provides a height and angle adjustable unmanned aerial vehicle, including: Adjusting mechanism, adjusting mechanism is connected with unmanned aerial vehicle, is located unmanned aerial vehicle below, adjusting mechanism includes height adjusting part and angle adjusting part, height adjusting part includes the second electric push rod of vertical setting, the fixed end of second electric push rod is fixedly installed in the below of unmanned aerial vehicle, angle adjusting part includes adjusting frame, rotating seat, second motor and rotating mechanism, adjusting frame vertical fixed mounting is in the downside of the action end of second electric push rod, rotating seat upper end has connecting shaft, the lower end of adjusting frame is rotatably connected with connecting shaft through rolling bearing, second motor is fixedly installed in one side of adjusting frame, the output shaft of second motor and connecting shaft have the gear that meshes with each other on, rotating mechanism is located in rotating seat in; Clamping mechanism, clamping mechanism is connected with angle adjusting part, is used for clamping beacon light; Nut dismounting mechanism, nut dismounting mechanism sets up on clamping mechanism, is used for tightening or dismounting nut; The utility model provides a height and angle adjustable unmanned aerial vehicle, including: The first clamping part and second clamping part are located on the frame, both sides of the frame have the installation plate that sets up symmetrically, the installation plate is n-shaped, and is vertically arranged, the first clamping part includes first drive part and clamping seat, the first drive part is installed on the installation plate, the clamping seat is symmetrically and movably arranged between the installation plate, and the first drive part drives the clamping seat to approach or move away from each other; The first drive part includes first electric push rod, pull plate and fixed shaft, the first electric push rod is vertically installed in the middle part above the installation plate, the top end of the action end of first electric push rod is rotatably connected with two pull plates, the pull plate is symmetrically and obliquely arranged below the first electric push rod on both sides, the fixed shaft is horizontally arranged, and both ends are fixedly connected with the installation plate and located below the pull plate, the clamping seat is slidably arranged on the fixed shaft, the lower end of the pull plate is rotatably connected with the clamping seat, the first electric push rod drives the clamping seat to approach or move away from each other on the fixed shaft, the clamping seat includes moving plate and clamping block, the moving plate is horizontally arranged, and both ends are respectively inserted and slidably matched with the fixed shaft, the clamping block is fixedly installed in the middle part of the moving plate, the lower side of the clamping block has horizontal direction bending, and the bending direction is towards the clamping block on the other side; The second clamping part includes second drive part and clamping plate, the second drive part is arranged on the frame, the clamping plate is symmetrically slidably arranged on the frame through linear slide rail module and located between the installation plate, and the side of the clamping plate facing each other is provided with a protective layer made of flexible material, the second drive part drives the clamping plate to approach or move away from each other.

2. The unmanned aerial vehicle based buoy light replacement device of claim 1, wherein: The rotating mechanism comprises a rotating shaft and a third motor, the rotating seat is internally provided with a mounting groove, the third motor is fixedly installed in the mounting groove through a support, and the output end of the third motor is vertically downwardly arranged, the rotating shaft is fixedly connected with the output shaft of the third motor through a shaft coupling, and the rotating shaft is rotationally connected with the rotating seat through a rolling bearing, and the lower end of the rotating shaft is fixedly connected with the rack.

3. The unmanned aerial vehicle based buoy light replacement device of claim 1, wherein: The second driving part comprises a first motor and a rack, the first motor is fixedly installed on the rack, and the output end is vertically downwardly arranged, two racks are horizontally and parallelly arranged, and are located on the two sides of the output end of the first motor, the tooth surface faces the inner side, one end of the rack is fixedly connected with the clamping plate, the other end is in plug-in and sliding fit with the clamping plate on the other side, and the output end of the first motor is provided with a gear engaged with the rack.

4. The unmanned aerial vehicle based buoy light replacement apparatus of claim 1, wherein: The nut dismounting mechanism comprises a fixing frame and a dismounting part, the fixing frame is annularly arranged and fixedly installed on the rack, and the dismounting part is arranged on the fixing frame, and the number of the dismounting parts corresponds to the number of the nuts to be locked.

5. The unmanned aerial vehicle based buoy light replacement device of claim 4, wherein: The dismounting part comprises a third electric push rod, a connecting seat, a dismounting seat and a third driving part, the third electric push rod is vertically installed on the fixing frame, the action end of the third electric push rod is fixedly connected with the connecting seat and downwardly arranged, the dismounting seat is fixedly installed on the connecting seat, and the third driving part is arranged on the dismounting seat and used for dismounting the nut.

6. The unmanned aerial vehicle based buoy light replacement device of claim 5, wherein: The dismounting seat is horizontally arranged, one end thereof towards the beacon light is provided with a dismounting hole penetrating therethrough, the dismounting seat is internally provided with a mounting chamber, the third driving part comprises a dismounting sleeve, a fourth motor and a reduction gear, the dismounting sleeve is vertically and rotationally installed in the dismounting hole, the reduction gear is rotationally installed in the mounting chamber, the dismounting sleeve is hollowly arranged and internally provided with a tooth groove matched with the nut, the outer side of the dismounting sleeve is provided with a tooth engaged with the reduction gear, the fourth motor is arranged on the upper side of the dismounting seat, the output end thereof is downwardly arranged and located in the mounting chamber, and the output end of the fourth motor is provided with a gear engaged with the reduction gear.

7. The unmanned aerial vehicle based buoy light replacement device of claim 6, wherein: The dismounting seat is provided with a magnet, one end of the magnet is located above the dismounting sleeve, and the magnet is provided with a position avoiding groove coaxially arranged with the dismounting sleeve.

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