Unmanned aerial vehicle protection device

Abstract

The invention relates to the technical field of unmanned aerial vehicle protection, and discloses an unmanned aerial vehicle protection device. The top frame is arranged on the upper portion of the bottom frame and connected with the bottom frame, and an interval between the top frame and the bottom frame is used for installing an unmanned aerial vehicle; the number of the lateral buffering pieces is at least three, the lateral buffering pieces are arranged on the periphery of the top frame and / or the bottom frame in the circumferential direction at intervals, and the lateral buffering pieces are connected with the outer side wall of the top frame and / or the outer side wall of the bottom frame; the number of the top buffering pieces is at least one, and all the top buffering pieces are connected to the top of the top frame; the number of the bottom buffering pieces is at least one, and all the bottom buffering pieces are connected to the bottom of the bottom frame; a three-dimensional protection system for multi-dimensional and high-strength collision such as lateral collision, upward collision, downward collision and falling possibly encountered by the unmanned aerial vehicle in the whole flight inspection process is formed, the service life of the unmanned aerial vehicle is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of drone protection technology, and in particular to a drone protection device. Background Technology

[0002] In recent years, with the continuous advancement of smart grid construction, drones have gradually become an important tool for substation equipment inspection due to their advantages such as maneuverability, unique perspective, and high operational efficiency. Equipped with high-definition cameras and various sensors, drones can achieve high-altitude, close-range, and multi-angle detection of the operating status of substation equipment, effectively compensating for the shortcomings of traditional manual inspections, such as numerous blind spots, high labor intensity, and high safety risks, significantly improving the automation level and data acquisition quality of inspections. However, in the special operating environment of substations, due to the dense electrical equipment, complex spatial structure, and crisscrossing frameworks, wires, and other ancillary facilities, drones are highly susceptible to accidental collisions with surrounding obstacles during flight inspections. Such collisions can accumulate and create performance hazards, affecting the long-term reliability and lifespan of the drone, and even directly causing damage to the drone's rotors, fuselage structure, or mission equipment malfunctions, leading to increased equipment maintenance costs and interruptions to inspection missions.

[0003] Currently, there have been some attempts at protection technology for drones. For example, patent application number CN112027067A discloses a protection mechanism for drones. Connecting rods are fixedly connected to both sides of the drone body. Support legs are fixedly connected to the outer side of the connecting rods. A cross plate is fixedly connected to the inner side of the support legs. A fixed plate is fixedly connected to the bottom of the cross plate. A buffer cylinder is fixedly connected to the bottom of the fixed plate. A buffer spring is fixedly connected to the top of the inner cavity of the buffer cylinder. A buffer support rod is fixedly connected to the bottom of the buffer spring. It focuses on buffering the bottom impact when the drone lands. It absorbs landing energy by setting up structures such as buffer springs and buffer cylinders. However, its protection range is limited to a single vertical downward direction. It cannot cope with the risk of collisions from the sides and tops during flight. In the face of complex three-dimensional spaces with dense equipment and obstacles distributed in multiple directions, such as substations, it cannot solve the problem of protecting drones from multi-dimensional and high-intensity collisions from the sides and tops during the entire flight inspection process. Summary of the Invention

[0004] The technical problem that this invention aims to solve is that the existing protection mechanisms for drones are limited to a single vertical downward direction. In the face of complex three-dimensional spaces with dense equipment and obstacles distributed in multiple directions, such as substations, they cannot solve the problem of protecting drones from multi-dimensional and high-intensity collisions from the sides and above during the entire flight inspection process.

[0005] To address the aforementioned technical problems, the present invention provides a drone protection device, comprising: bottom frame; The top frame is located above the bottom frame and connected to it. The gap between the top frame and the bottom frame is used to install the drone. Lateral buffers are provided, at least three of which are arranged circumferentially around the outer periphery of the top frame and / or the bottom frame, and each lateral buffer is connected to the outer side wall of the top frame and / or the bottom frame respectively. A top buffer is provided, and each top buffer is connected to the top of the top frame; Bottom buffer, at least one bottom buffer is provided, and each bottom buffer is connected to the bottom of the bottom frame.

[0006] Preferably, each lateral buffer includes: The first sleeve is fixedly connected to the outer periphery of the top frame, and the first sleeve extends along the radial direction of the top frame; The top frame is slidably installed inside the first sleeve; The second return spring is installed inside the first sleeve, and its two ends are fixedly connected to the top frame and the first sleeve, respectively.

[0007] Preferably, the first sleeve is provided with a threaded section, and the first sleeve is threadedly connected to the top frame through the threaded section to adjust the radial position of the first sleeve on the top frame.

[0008] Preferably, a gear ring is rotatably provided inside the top frame, and each first sleeve is provided with a gear that meshes with the gear ring; The top frame is also equipped with fixing bolts, which are threaded onto the top frame. The ends of the fixing bolts are used to press against the gear ring to limit its rotation.

[0009] Preferably, each top buffer includes: The second sleeve is fixedly connected to the top of the top frame; The top shaft is slidably installed inside the second sleeve; The first return spring is installed inside the second sleeve, and its two ends are fixedly connected to the top shaft and the second sleeve, respectively.

[0010] Preferably, each bottom cushioning element includes: The base is rotatably connected to the bottom of the base frame; The torsion spring has its two ends fixedly connected to the base foot and the base frame, respectively.

[0011] Preferably, the drone protection device also includes: The upper connector is located at the bottom of the top frame; The upper connection frame is set on the upper connection seat; The lower connector is located at the top of the bottom frame; The lower connection frame is set on the lower connection seat; A fixed component, located on the lower connecting frame, is used to detachably connect the upper connecting frame and the lower connecting frame.

[0012] Preferably, the upper connecting frame includes two symmetrically arranged upper support frame sides, each of which is slidably mounted on the upper connecting seat; The lower connecting frame includes two symmetrically arranged lower support frame sides, each of which is slidably mounted on the lower connecting seat. The drone protection device also includes two adjusting screws, each of which is rotatably connected to the top frame and the bottom frame respectively, and each adjusting screw has threaded sections with opposite directions of rotation at both ends; One of the adjusting screws has two ends threaded into the two upper support frame edges respectively, so as to drive the two upper support frame edges to move synchronously towards or away from each other; The other adjusting screw has two ends threaded into the two lower support frame edges respectively, so as to drive the two lower support frame edges to move synchronously towards or away from each other.

[0013] Preferably, each upper support frame has multiple slots spaced apart along the height direction; The fixed components include: The mounting frame is fixedly connected to the edge of the lower support frame; Two locking blocks are provided, which are symmetrically and slidably disposed within the mounting frame. Each lock block is equipped with a locking lever that matches the locking slot; The control screw is rotatably mounted in the mounting frame. The two ends of the control screw are provided with threads of opposite directions, and the two ends of the control screw respectively engage with the threads of each locking block. The worm gear is fixedly mounted on the control lead screw; The worm gear is rotatably mounted on the mounting frame and meshes with the worm wheel. Rotating the worm gear drives the control screw to rotate, causing each locking block to move synchronously, so that the locking rod can be inserted into or removed from the slot to lock or release the upper support frame edge.

[0014] Preferably, there are two control screws, which are spaced apart vertically and rotatably installed in the mounting frame. Each control screw has threads with opposite directions at both ends, which respectively engage with the threads of each locking block. The worm gear is fixedly installed on one of the control screws. A timing belt assembly is provided between the two control screws, which is used to drive the two control screws to rotate synchronously.

[0015] Compared with the prior art, the drone protection device of this invention has the following advantages: The drone protection device provided by this invention effectively solves the limitation of existing technologies that can only protect against vertically downward collisions in complex environments such as substations. It achieves all-round, high-intensity collision protection. The cavity formed by the protective frame provides a stable installation foundation for the drone, while at least three circumferentially spaced lateral buffers ensure 360-degree coverage of lateral collision energy without blind spots, and can efficiently absorb lateral impacts from obstacles such as frames and wires. At the same time, the top buffer is specifically designed to deal with upper collisions (such as beams or auxiliary facilities), while the bottom buffer enhances the buffering capacity against lower impacts (such as equipment platforms or fall risks). The three work together to form a three-dimensional protection system for multi-dimensional, high-intensity collisions that the drone may encounter during the entire flight inspection process, including lateral, upper, lower, and fall collisions. This not only significantly reduces the risk of rotor damage, fuselage deformation, or mission equipment failure caused by accidental impacts, extending the service life of the UAV and reducing maintenance costs, but also greatly improves its operational safety and reliability in substation environments with dense electrical equipment and complex spatial structures. This ensures the continuity of inspection tasks and the quality of data collection, further promoting the improvement of the automation level of smart grid inspections and the optimization of operation and maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a drone protection device provided in an embodiment of the present invention; Figure 2 This is a diagram illustrating a drone protection device mounted on the outside of a drone, as provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of the unfolded structure of the protective frame structure of a drone protection device provided in an embodiment of the present invention; Figure 4 These are separation diagrams of the connection structure of the top buffer component and the bottom buffer component of a drone protection device provided in this embodiment of the invention. Figure 5 This is a diagram showing the separation of the connection structure of a lateral buffer component of a drone protection device according to an embodiment of the present invention. Figure 6 This is a cross-sectional view of the positional structure of a fixed component of a drone protection device provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the cooperation structure between the fixing component and the upper support frame of a drone protection device provided in an embodiment of the present invention.

[0017] In the diagram, 0 is the drone; 1 is the top frame; 2 is the upper connecting seat; 3 is the upper connecting frame; 301 is the upper support frame edge; 302 is the slot; 4 is the bottom frame; 5 is the lower connecting seat; 6 is the lower connecting frame; 601 is the lower support frame edge; 7 is the fixing component; 701 is the mounting frame; 702 is the locking block; 703 is the locking rod; 704 is the control screw; 705 is the timing belt assembly; 706 is the worm gear; 707 is the worm; 8 is the first sleeve; 9 is the top frame; 10 is the second sleeve; 11 is the top shaft; 12 is the first return spring; 13 is the base; 14 is the torsion spring; 15 is the second return spring; 16 is the threaded section; 17 is the gear ring; 18 is the gear; 19 is the adjusting screw; and 20 is the fixing bolt. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0019] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0020] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figures 1 to 7 As shown, a preferred embodiment of the present invention provides a drone protection device, comprising: Bottom frame 4; The top frame 1 is located above the bottom frame 4 and connected to the bottom frame 4. The gap between the top frame 1 and the bottom frame 4 is used to install the drone 0. Lateral buffers are provided, at least three of which are arranged circumferentially around the outer periphery of the top frame 1 and / or the bottom frame 4, and each lateral buffer is connected to the outer side wall of the top frame 1 and / or the bottom frame 4 respectively. A top buffer is provided, and each top buffer is connected to the top of the top frame 1. Bottom buffer, at least one bottom buffer is provided, and each bottom buffer is connected to the bottom of the bottom frame 4.

[0023] The UAV protection device provided in this invention effectively solves the limitation of existing technologies that can only protect against vertically downward collisions in complex environments such as substations. It achieves all-round, high-intensity collision protection. The gap between the top frame 1 and the bottom frame 4 provides a stable installation foundation for the UAV 0, while the at least three lateral buffers arranged circumferentially ensure 360-degree coverage of lateral collision energy without blind spots, and can efficiently absorb lateral impacts from obstacles such as frames and wires. At the same time, the top buffer is specifically designed to deal with upper collisions (such as beams or auxiliary facilities), while the bottom buffer enhances the buffering capacity against lower impacts (such as equipment platforms or fall risks). The three work together to form a three-dimensional protection system for the UAV 0 to encounter multi-dimensional, high-intensity collisions such as lateral, upper, lower, and fall collisions during the entire flight inspection process. This not only significantly reduces the risk of rotor damage, fuselage deformation, or mission equipment failure caused by accidental impacts, extending the service life of the UAV and reducing maintenance costs, but also greatly improves its operational safety and reliability in substation environments with dense electrical equipment and complex spatial structures. This ensures the continuity of inspection tasks and the quality of data collection, further promoting the improvement of the automation level of smart grid inspections and the optimization of operation and maintenance efficiency.

[0024] Specifically, each lateral buffer includes: The first sleeve 8 is fixedly connected to the outer periphery of the top frame 1, and the first sleeve 8 extends in the radial direction of the top frame 1. Top frame 9 is slidably installed inside first sleeve 8; The second return spring 15 is disposed inside the first sleeve 8, and the two ends of the second return spring 15 are fixedly connected to the top frame 9 and the first sleeve 8 respectively.

[0025] When the UAV 0 encounters a side collision while conducting flight inspections in a substation with dense equipment, the outer top frame 9 first contacts the obstacle and slides radially inward along the first sleeve 8, while simultaneously compressing the second return spring 15. This converts the impact kinetic energy that was originally directly transmitted to the main body of the UAV 0 into the elastic potential energy of the spring, effectively buffering and dispersing the side impact force and avoiding direct damage to the UAV 0's rotor, fuselage structure, and mission equipment due to instantaneous high stress. After the collision, the second return spring 15 quickly returns to its original state, pushing the top frame 9 to reset, ensuring that the protective device can withstand multiple impacts.

[0026] Specifically, such as Figure 2 and Figure 5 As shown, the first sleeve 8 is provided with a threaded section 16. The first sleeve 8 is threadedly connected to the top frame 1 through the threaded section 16 to adjust the radial position of the first sleeve 8 on the top frame 1. This ensures that the outer contour dimension formed by the top frame 9 at the ends of each first sleeve 8 is greater than the outer contour of the wing of the UAV 0, so that an effective outer protection area can be formed for different types of UAVs 0.

[0027] Specifically, a gear ring 17 is rotatably provided inside the top frame 1, and each first sleeve 8 is provided with a gear 18 that meshes with the gear ring 17; The top frame 1 is also provided with a fixing bolt 20, which is threaded onto the top frame 1. The end of the fixing bolt 20 is used to press against the gear ring 17 to limit the rotation of the gear ring 17.

[0028] By setting the gear ring 17, the radial length of each first sleeve 8 can be adjusted synchronously. When it is necessary to adapt to UAVs 0 of different sizes, simply loosen the fixing bolt 20 to release the constraint on the gear ring 17, and then rotate the gear ring 17. Through the meshing transmission between the gear 18 and the gear ring 17, all the first sleeves 8 can be driven to rotate synchronously, so that they can move radially synchronously and equidistantly along the threaded section 16 on the top frame 1, thereby achieving consistent adjustment of the protection range of each top frame 9. After the adjustment is completed, tighten the fixing bolt 20 so that its end abuts against the outer edge of the gear ring 17. By applying frictional resistance, the position of the gear ring 17 is effectively locked, preventing the size of the protective cover from changing due to vibration or collision during the flight of the UAV 0. This simplifies the size adjustment operation process of the protective device and improves the adjustment efficiency.

[0029] Specifically, there are six lateral buffers, which are evenly arranged around the outer perimeter of the top frame 1.

[0030] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, each top buffer includes: The second sleeve 10 is fixedly connected to the top of the top frame 1; The top shaft 11 is slidably disposed within the second sleeve 10; The first return spring 12 is disposed inside the second sleeve 10, and the two ends of the first return spring 12 are fixedly connected to the top shaft 11 and the second sleeve 10 respectively.

[0031] When the UAV 0 encounters an overhead obstacle (such as a beam or wire) during a flight inspection in a substation with dense equipment, the outer top shaft 11 first contacts the obstacle and slides downward along the second sleeve 10, simultaneously compressing the first return spring 12. This converts the impact kinetic energy that was originally directly transmitted to the main body of the UAV 0 into the elastic potential energy of the spring. This effectively buffers and disperses the impact force from the top, avoiding direct damage to the UAV 0's rotor, fuselage structure, and mission equipment caused by instantaneous high stress. After the collision, the first return spring 12 quickly returns to its original state, pushing the top shaft 11 back to its original position, ensuring that the protective device can withstand multiple impacts.

[0032] Specifically, there are eight top buffers, which are spaced apart on the upper part of the top frame 1.

[0033] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, each bottom buffer includes: The base 13 is rotatably connected to the bottom of the base frame 4; Torsion spring 14, with its two ends fixedly connected to base foot 13 and base frame 4 respectively.

[0034] When a drone encounters a bottom collision or an unexpected forced landing during substation inspection, the foot 13 rotates around the pivot, causing the torsion spring 14 to undergo elastic deformation. This converts the impact kinetic energy that was originally directly transmitted to the drone body into the torsional potential energy of the torsion spring, effectively buffering and dispersing the impact force from below. After the collision, the torsion spring 14 provides a restoring torque, causing the foot 13 to automatically reset, ensuring that the protective device can withstand multiple impacts.

[0035] Specifically, there are four bottom buffers, which are arranged circumferentially at intervals at the bottom of the bottom frame. There are also four control components, which are respectively set to correspond one-to-one with each of the bottom buffers.

[0036] Specifically, drone protection devices also include: Upper connecting seat 2 is located at the bottom of the top frame 1; Upper connecting frame 3 is mounted on upper connecting seat 2; The lower connecting seat 5 is located at the top of the bottom frame 4; The lower connecting frame 6 is set on the lower connecting seat 5; The fixing component 7 is set on the lower connecting frame 6 and is used to detachably connect the upper connecting frame 3 and the lower connecting frame 6.

[0037] By setting upper connecting seat 2 and lower connecting seat 5 as transitional connection structures on the top frame 1 and bottom frame 4 respectively, a modular layered design of the protective frame is realized. This allows the upper connecting frame 3 and lower connecting frame 6 to be installed and disassembled independently. The upper connecting frame 3 and lower connecting frame 6, after being detachably connected, together form a cavity that surrounds the drone 0, ensuring the overall structural stability of the protective frame. This enables the top frame 1 and bottom frame 4 to effectively withstand impact forces from the top and bottom directions. It also simplifies the installation and disassembly process of the protective device. When the protective cover needs to be installed on the drone 0, simply place the drone 0 in the lower connecting frame 6 and then lock the upper connecting frame 3 and lower connecting frame 6 with the fixing component 7 to complete the installation. When it is necessary to maintain or replace the drone 0, the connection of the fixing component 7 can be quickly released to separate the upper connecting frame 3 and lower connecting frame 6, thereby conveniently removing the drone 0.

[0038] Specifically, such as Figure 1 , Figure 2 and Figure 6 As shown, the upper connecting frame 3 includes two symmetrically arranged upper support frame sides 301, and each upper support frame side 301 is slidably disposed on the upper connecting seat 2. The lower connecting frame 6 includes two symmetrically arranged lower support frame edges 601, each of which is slidably mounted on the lower connecting seat 5. The drone protection device also includes two adjusting screws 19, each adjusting screw 19 being rotatably connected to the top frame 1 and the bottom frame 4 respectively, and each adjusting screw 19 having threaded sections 16 with opposite directions of rotation at both ends; One of the adjusting screws 19 has two ends threadedly engaged with two upper support frame edges 301 respectively, so as to drive the two upper support frame edges 301 to move synchronously towards each other or away from each other; The two ends of another adjusting screw 19 are respectively threaded with the two lower support frame edges 601 to drive the two lower support frame edges 601 to move synchronously towards or away from each other.

[0039] Taking the upper connecting frame 3 as an example, the upper connecting frame 3 is set as two symmetrically arranged upper support frame sides 301, and an adjusting screw 19 is set to connect to the two upper support frame sides 301. When the adjusting screw 19 installed on the top frame 1 is rotated, since the threads at both ends of the adjusting screw 19 are rotated in opposite directions, the two upper support frame sides 301 will move synchronously towards or away from each other, thereby adjusting the distance between the two upper support frame sides 301 and completing the adjustment of the width of the upper connecting frame 3. Similarly, the other adjusting screw 19 installed on the bottom frame 4 can simultaneously adjust the width of the lower connecting frame 6, so that the same set of protective devices can quickly inspect drones 0 of different widths, significantly reducing the cost for maintenance units to equip different models with dedicated protective devices. At the same time, the width adjustment process is simple and quick, which can be completed by simply rotating the adjusting screw 19, without disassembling or replacing parts, greatly improving the efficiency of on-site installation.

[0040] Specifically, such as Figure 6 and Figure 7 As shown, each upper support frame edge 301 is provided with multiple slots 302 at intervals along the height direction; Fixing component 7 includes: Mounting frame 701 is fixedly connected to the lower support frame edge 601; Two locking blocks 702 are provided, and the two locking blocks 702 are symmetrically and slidably disposed within the mounting frame 701; Each locking block 702 is equipped with a locking lever 703 that matches the locking slot 302; The control screw 704 is rotatably mounted in the mounting frame 701. The two ends of the control screw 704 are provided with threads of opposite directions, and the two ends of the control screw 704 are respectively threaded into each locking block 702. Worm gear 706 is fixedly mounted on control screw 704; The worm gear 707 is rotatably mounted on the mounting frame 701 and meshes with the worm wheel 706; Rotating the worm gear 707 drives the control screw 704 to rotate, causing each locking block 702 to move synchronously, so that the locking rod 703 can be inserted into or removed from the slot 302 to lock or release the upper support frame edge 301.

[0041] By setting multiple slots 302 arranged at intervals along the height direction on the upper support frame edge 301, and cooperating with the symmetrical locking blocks 702 and their locking rods 703 in the fixing component 7, the height of the protective frame can be precisely and progressively adjusted. When the exposed worm 707 is rotated, the worm wheel 706 drives the control screw 704 to rotate. Since the threads at both ends of the screw have opposite directions, the two locking blocks 702 will move synchronously towards or away from each other, so that the locking rods 703 on the two locking blocks 702 can be inserted or withdrawn synchronously into the slots 302 at the same height on the two upper support frame edges 301, thereby locking the upper connecting frame 3 and the lower connecting frame 6 at different height positions. This allows the same set of protective devices to quickly inspect UAVs 0 at different heights, significantly reducing the cost for maintenance units to equip different models with dedicated protective devices. At the same time, the unique self-locking performance of the worm wheel 706 and worm 707 mechanism ensures that the height-adjusted structure can remain firmly locked under vibration and collision conditions during the flight of the UAV 0, avoiding the risk of loosening due to vibration that may occur with traditional bolt connections.

[0042] Specifically, there are two control screws 704, which are spaced apart vertically and rotatably installed in the mounting frame 701. Each control screw 704 has threads with opposite directions at both ends, which are threadedly engaged with each locking block 702. The worm gear 706 is fixedly installed on one of the control screws 704. A timing belt assembly 705 is provided between the two control screws 704, which is used to drive the two control screws 704 to rotate synchronously.

[0043] Two control screws 704 are provided so that the locking block 702 is driven simultaneously in both the upper and lower positions. This effectively avoids the problems of tilting, jamming, or uneven force on the locking block 702 that may be caused by a single control screw 704, and ensures that the locking lever 703 can be accurately and smoothly inserted into or removed from the slot 302. The synchronous belt group 705 ensures that the two control screws 704 rotate completely synchronously, so that the locking blocks 702 on both sides always maintain a consistent movement trajectory and speed, which improves the accuracy and smoothness of the height adjustment process.

[0044] Specifically, the synchronous belt assembly 705 includes two pulleys and a transmission belt. The two pulleys are respectively mounted on two control screws 704, and the transmission belt connects the two pulleys.

[0045] Specifically, one end of the worm gear 707 extends out of the mounting frame 701 to facilitate user operation.

[0046] The working process of this invention is as follows: Based on the dimensions of the UAV 0 to be installed, the adjusting screws 19 on the top frame 1 and bottom frame 4 are rotated to synchronously drive the movement of each support frame edge of the upper connecting frame 3 and lower connecting frame 6, thereby adjusting the internal width of the protective frame. Next, the control screw 704 in the fixing assembly 7 is driven by rotating the worm gear 707, causing the locking rod 703 on the locking block 702 to insert into the corresponding height of the slot 302 on the upper support frame edge 301, thus locking the height of the protective frame. Then, the fixing bolts 20 are loosened, and the gear ring 17 is rotated, causing all the first sleeves 8 to synchronously extend and retract radially until the outer contour formed by each top frame 9 is greater than the outer contour of the UAV 0's wing.

[0047] During substation inspection flights, if the UAV 0 collides with an obstacle from the side, the top frame 9 of the lateral buffer will slide inward under pressure, compressing the second return spring 15 to absorb and buffer the impact energy. If it is hit from above, the top shaft 11 of the top buffer will press down, compressing the first return spring 12 for buffering; if it is hit from below, the bottom foot 13 of the bottom buffer will rotate and twist to absorb the impact from below.

[0048] In summary, this invention provides a drone protection device that effectively solves the limitation of existing technologies in complex environments such as substations, which can only protect against vertically downward collisions. It achieves all-round, high-intensity collision protection. The cavity formed by the protective frame provides a stable installation foundation for the drone, while at least three circumferentially spaced lateral buffers ensure 360-degree coverage of lateral collision energy, efficiently absorbing lateral impacts from obstacles such as frames and wires. At the same time, the top buffer is specifically designed to deal with upward collisions (such as beams or auxiliary facilities), while the bottom buffer enhances the buffering capacity against downward impacts (such as equipment platforms or fall risks). The three work together to form a three-dimensional protection system for the drone during its flight inspection, covering multi-dimensional, high-intensity collisions from the sides, above, below, and falls. This not only significantly reduces the risk of rotor damage, fuselage deformation, or mission equipment failure caused by accidental impacts, extending the service life of the UAV and reducing maintenance costs, but also greatly improves its operational safety and reliability in substation environments with dense electrical equipment and complex spatial structures. This ensures the continuity of inspection tasks and the quality of data collection, further promoting the improvement of the automation level of smart grid inspections and the optimization of operation and maintenance efficiency.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A drone protection device, characterized in that, include: Bottom frame (4); A top frame (1) is located on the upper part of the bottom frame (4) and connected to the bottom frame (4). The gap between the top frame (1) and the bottom frame (4) is used to install a drone (0). Lateral buffers, at least three of which are provided, are arranged circumferentially at intervals on the outer periphery of the top frame (1) and / or the bottom frame (4), and each of the lateral buffers is connected to the outer side wall of the top frame (1) and / or the bottom frame (4). A top buffer, wherein at least one top buffer is provided, and each top buffer is connected to the top of the top frame (1); Bottom buffer, at least one of which is provided, and each of the bottom buffers is connected to the bottom of the bottom frame (4).

2. The drone protection device according to claim 1, characterized in that, Each of the aforementioned lateral buffers includes: The first sleeve (8) is fixedly connected to the outer periphery of the top frame (1), and the first sleeve (8) extends in the radial direction of the top frame (1); The top frame (9) is slidably disposed inside the first sleeve (8); The second return spring (15) is disposed inside the first sleeve (8), and the two ends of the second return spring (15) are fixedly connected to the top frame (9) and the first sleeve (8) respectively.

3. The drone protection device according to claim 2, characterized in that, The first sleeve (8) is provided with a threaded section (16), and the first sleeve (8) is threadedly connected to the top frame (1) through the threaded section (16) to adjust the radial position of the first sleeve (8) on the top frame (1).

4. The drone protection device according to claim 3, characterized in that, The top frame (1) is rotatably provided with a gear ring (17), and each of the first sleeves (8) is provided with a gear (18) that meshes with the gear ring (17). The top frame (1) is also provided with a fixing bolt (20), which is threaded onto the top frame (1). The end of the fixing bolt (20) is used to abut against the gear ring (17) to restrict the rotation of the gear ring (17).

5. A drone protection device according to claim 2, characterized in that, Each of the aforementioned top buffers includes: The second sleeve (10) is fixedly connected to the top of the top frame (1); The top shaft (11) is slidably disposed inside the second sleeve (10); The first return spring (12) is disposed inside the second sleeve (10), and the two ends of the first return spring (12) are fixedly connected to the top shaft (11) and the second sleeve (10) respectively.

6. A drone protection device according to claim 5, characterized in that, Each of the aforementioned bottom buffers includes: The base (13) is rotatably connected to the bottom of the base frame (4); Torsion spring (14), the two ends of which are fixedly connected to the base foot (13) and the base frame (4) respectively.

7. The drone protection device according to claim 1, characterized in that, The drone (0) protection device also includes: The upper connecting seat (2) is located at the bottom of the top frame (1); The upper connecting frame (3) is disposed on the upper connecting seat (2); The lower connecting seat (5) is located on the top of the bottom frame (4); The lower connecting frame (6) is disposed on the lower connecting seat (5); A fixing component (7) is disposed on the lower connecting frame (6) for detachably connecting the upper connecting frame (3) and the lower connecting frame (6).

8. A drone protection device according to claim 7, characterized in that, The upper connecting frame (3) includes two symmetrically arranged upper support frame sides (301), and each of the upper support frame sides (301) is slidably disposed on the upper connecting seat (2); The lower connecting frame (6) includes two symmetrically arranged lower support frame sides (601), and each of the lower support frame sides (601) is slidably disposed on the lower connecting seat (5); The UAV (0) protection device also includes two adjusting screws (19), each of which is rotatably connected to the top frame (1) and the bottom frame (4), and each of the adjusting screws (19) has a threaded section (16) with opposite directions of rotation at both ends. in The two ends of one of the adjusting screws (19) are respectively threaded to the two upper support frame edges (301) to drive the two upper support frame edges (301) to move synchronously towards each other or away from each other; The two ends of the other adjusting screw (19) are respectively threaded to the two lower support frame edges (601) to drive the two lower support frame edges (601) to move synchronously towards or away from each other.

9. A drone protection device according to claim 8, characterized in that, Each of the upper support frame edges (301) is provided with multiple slots (302) at intervals along the height direction; The fixing component (7) includes: The mounting frame (701) is fixedly connected to the lower support frame edge (601); Two locking blocks (702) are provided, and the two locking blocks (702) are symmetrically and slidably disposed within the mounting frame (701); Each of the locking blocks (702) is provided with a locking rod (703) that matches the locking slot (302); The control screw (704) is rotatably disposed within the mounting frame (701). The two ends of the control screw (704) are provided with threads of opposite directions. The two ends of the control screw (704) are respectively threaded into each of the locking blocks (702). The worm gear (706) is fixedly mounted on the control screw (704); The worm (707) is rotatably mounted on the mounting frame (701) and meshes with the worm wheel (706); Rotating the worm gear (707) drives the control screw (704) to rotate, causing each of the locking blocks (702) to move synchronously, so that the locking rod (703) inserts into or exits the slot (302) to lock or release the upper support frame edge (301).

10. A drone protection device according to claim 9, characterized in that, Two control screws (704) are provided, and the two control screws (704) are spaced apart vertically and rotatably installed in the mounting frame (701). Each control screw (704) has threads with opposite directions at both ends, and they are threadedly engaged with each locking block (702). The worm gear (706) is fixedly installed on one of the control screws (704). A timing belt assembly (705) is provided between the two control screws (704), and the timing belt assembly (705) is used to drive the two control screws (704) to rotate synchronously.

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