Hanging anti-falling device and unmanned aerial vehicle

Abstract

The invention provides a mounting anti-falling device and an unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles, the mounting anti-falling device comprises an unmanned aerial vehicle body and an anti-falling assembly, the anti-falling assembly comprises a mounting plate, a storage box, a gun barrel box, a gunpowder piece, a heat insulation plate, a gas tank and a hollow parachute, the mounting plate is inserted into the upper portion of the unmanned aerial vehicle body in a sliding mode, the ignition end of the electronic igniter ignites the gunpowder piece, the gas tank is fixedly connected with one side of the mounting plate, and one side of the gas tank communicates with the interior of the hollow parachute. Through the dual action of thrust of the gunpowder piece and high-pressure inflation of the gas tank, even in a low-altitude operation scene, the hollow parachute can break through height limitation, rapid and complete opening is achieved, the air crash risk caused by the fact that the parachute fails to take effect in time is remarkably reduced, and the safety requirement of low-altitude operation of the unmanned aerial vehicle is met.

Description

Technical Field

[0001] The present application relates to the field of drones, and more specifically, to a mounting anti-fall device and a drone. Background Art

[0002] Large heavy-load drones refer to drones with a large take-off weight and the ability to carry heavier loads. They play an important role in logistics, agriculture, emergency rescue and other fields. During flight, large heavy-load drones may suffer crashes due to a variety of factors. From a technical perspective, sudden battery power failure is one of the common causes, especially in long-endurance missions. If the battery capacity is miscalculated or there are quality risks, it is very easy to cause power interruption. Motor failure will also directly affect flight stability. The sudden stop of one or more motors will destroy the balance of the large heavy-load drone and cause it to fall.

[0003] At present, some large heavy-loaded UAVs are equipped with parachute-type anti-crash structures. Since many large heavy-loaded UAVs require low-altitude operation, the parachute needs to be at a sufficient height to complete inflation and deployment and generate effective resistance to reduce the falling speed of large heavy-loaded UAVs. If the opening height is too low, the UAV may fall to the ground before the parachute takes effect. Due to low-altitude flight operations, insufficient inflation makes it inconvenient to fully open the parachute in time, increasing the risk of large heavy-loaded UAVs crashing. Summary of the Invention

[0004] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a mounted anti-fall device that can quickly and fully deploy a hollow parachute, significantly reducing the risk of a crash caused by the parachute failing to deploy in time, and reducing the risk of a drone crash.

[0005] According to an embodiment of the present application, a mounted anti-fall device includes: a drone body and an anti-fall assembly, the anti-fall assembly including a mounting plate, a storage box, a barrel box, a powder piece, a heat shield, a gas tank and a hollow parachute, the mounting plate is slidably plugged into the upper part of the drone body, an electronic igniter is provided inside the storage box, the barrel box is fixedly connected to the inside of the storage box, the powder piece is installed inside the barrel box, the ignition end of the electronic igniter ignites the powder piece, the heat shield is placed inside the barrel box, the circumference of the heat shield is attached to the inner wall of the barrel box, the hollow parachute is folded and placed inside the barrel box, the circumference of the hollow parachute is connected to the storage box, the gas tank is fixedly connected to one side of the mounting plate, and one side of the gas tank is connected to the hollow inside the hollow parachute.

[0006] According to a mounted anti-fall device of an embodiment of the present application, the beneficial effect is: when the UAV is in a low-altitude operation state and there is a risk of a sudden fall, the mounting plate serves as a connection carrier between the anti-fall component and the UAV body, which can ensure the stable response of the entire component, and the electronic igniter in the storage box can be triggered quickly, and its ignition end accurately ignites the gunpowder parts in the barrel box. The combustion of the gunpowder parts causes the air inside the barrel box to expand rapidly, generating a thrust similar to that of a launch. With the help of this explosive force, the hollow parachute folded and placed in the barrel box can be quickly pushed out to overcome the initial resistance in the low-altitude environment. At the same time, the gas tank fixedly connected to the mounting plate is filled with high-pressure air stored inside and quickly filled into the hollow part of the hollow parachute through the connecting structure, so that the hollow parachute is unfolded like a naughty castle. The heat insulation board is attached to the inner wall of the barrel box, which can avoid the high temperature generated by the burning of the gunpowder parts from damaging the hollow parachute and ensure the integrity of its deployment process. The connection between the storage box and the side of the hollow parachute can stabilize the relative position of the parachute and the UAV after deployment, ensuring that the resistance effectively acts on the UAV. Through the dual effects of the thrust of the gunpowder parts and the high-pressure inflation of the gas tank, even in low-altitude operation scenarios, the hollow parachute can break through the height limit and open quickly and completely, significantly reducing the risk of crashing due to the failure of the parachute to take effect in time, and meeting the safety requirements of low-altitude operations of UAVs.

[0007] In addition, a mounting anti-fall device according to an embodiment of the present application also has the following additional technical features:

[0008] According to the present application, a slot plate is provided on the upper portion of the drone body, a limit rod is provided on one side of the slot plate, and the mounting plate is inserted into the inside of the slot plate.

[0009] According to the present application, a cover is provided on the upper portion of the storage box, and the cover is arranged to be easily detached from the storage box.

[0010] According to the present application, a limiting block is provided at the inner bottom of the barrel box, and the limiting blocks are symmetrically arranged, and the gunpowder piece is arranged to match the shape of the inner bottom of the barrel box.

[0011] According to the present application, the amount of gunpowder provided inside the gunpowder piece can push the heat shield and the hollow parachute out of the barrel box.

[0012] According to the present application, a plurality of connecting belts are arranged at intervals around the circumference of the hollow parachute, and the connecting belts are fixedly connected to the inner side of the storage box.

[0013] According to the present application, an air inlet pipe is provided on one side of the gas tank, and the air inlet pipe is provided with a valve.

[0014] According to the present application, a hose is provided at the output end of the gas tank, the hose is provided with a first solenoid valve, and one end of the hose is connected to the hollow parachute.

[0015] According to the present application, a first battery pack and a first distribution box are respectively provided on one side of the mounting plate, the first battery pack is electrically connected to the first distribution box, and the first distribution box is respectively electrically connected to the electronic igniter and the first solenoid valve.

[0016] In pursuit of lightweight design, drone blades are usually made of light and thin materials, which makes them less impact-resistant and easily damaged by colliding with hard objects or deforming under force during a fall. However, when designing most existing drone anti-fall devices, they often focus on protecting the main body and core components of the aircraft, but ignore the targeted protection of the blades. At the same time, a power motor is also installed at the bottom of the blade, making it difficult for the blades and power motor to be effectively protected during a fall impact, significantly increasing the risk of damage and thus increasing the equipment maintenance cost.

[0017] According to the present application, it also includes a propeller protection assembly, which includes a bidirectional slide rail, an arc-shaped frame, a first motor, a rotating frame, an airbag and an air pump. The arc-shaped frame is symmetrically arranged, the arc-shaped frame is fixedly connected to the sliding end of the bidirectional slide rail, the sliding end of the bidirectional slide rail is slidably connected to the drone body, the first motor is symmetrically arranged, the first motor is fixedly connected to the sliding end of the bidirectional slide rail, the output end of the first motor is transmission-connected to the rotating frame, the rotating frame is rotationally connected to the inside of the arc-shaped frame, the airbag is fixedly connected to the rotating frame, the airbag is made of elastic material, the air pump is fixedly connected to the inside of the drone body, the output end of the air pump is communicated with the airbag, and the output end of the air pump is communicated with the air tank;

[0018] The propeller protection assembly can specifically solve the problem of UAV blades and power motors being easily damaged during falls and daily storage and transportation. The specific benefits are as follows:

[0019] During daily use and storage and transportation, the propeller protection assembly can effectively protect the blades. The sliding end of the two-way slide rail can drive the symmetrically arranged arc frame to move. When the UAV is not in flight, the sliding end of the two-way slide rail moves the arc frame to a position where the UAV body is exposed. At this time, the propeller can be rotated and stored inside the arc frame. Subsequently, the first motor fixedly connected to the sliding end of the two-way slide rail is started, and the output end of the first motor drives the rotating frame to rotate inside the arc frame, so that the rotating frame blocks the outside of the propeller, forming a surround protection for the propeller, avoiding damage to the blades due to collision or extrusion during storage and transportation, and also protecting the power motor at the bottom of the blade. When the UAV is flying, the sliding end of the two-way slide rail drives the arc frame to move inside the UAV body, reducing wind resistance during flight and not affecting the normal flight performance of the UAV.

[0020] When the drone crashes, the propeller protection assembly can respond quickly to protect the blades and power motor. The sliding end of the two-way slide rail quickly pushes the arc frame out of the drone body. The propeller continues to rotate and is stored inside the arc frame. The rotating frame rotates synchronously to the outside of the propeller to form a shield. At the same time, the air pump fixedly connected to the inside of the drone body is immediately started, and its output end inflates the airbag. Since the airbag is made of elastic material, it will expand in both directions after inflation. The expansion of the outer side of the airbag can effectively cushion the impact of collision with hard objects and prevent the blades and power motor from being directly hit. The side of the airbag close to the propeller can be close to the propeller after expansion, limiting its shaking amplitude during the fall and reducing deformation or breakage caused by shaking, thereby reducing the risk of damage to the blades and power motor and reducing equipment maintenance costs.

[0021] In addition, the output end of the air pump is also connected to the gas tank. This design can realize the rational use of resources. While ensuring the rapid inflation of the airbag, it also provides a certain amount of air source support for the coordinated work of the anti-fall components, further improving the overall protection reliability of the drone.

[0022] According to the present application, the bidirectional slide rail includes a second motor, a bidirectional threaded rod and a slider. The bidirectional threaded rod is symmetrically arranged in multiple numbers. The bidirectional threaded rod is rotatably connected to the drone body, the slider is slidably connected to the drone body, the second motor is fixedly connected to the drone body, the output end of the second motor is transmission-connected to one of the bidirectional threaded rods, and multiple bidirectional threaded rods are transmission-connected in sequence. The bidirectional threaded rod is threadedly connected to the slider, and the slider is fixedly connected to the arc frame.

[0023] According to the present application, a first bevel gear is provided at the output end of the first motor, a transmission shaft is provided inside the slider, a second bevel gear is provided at one end of the transmission shaft, a gear is provided at the other end of the transmission shaft, and a ring gear is provided on the rotating frame. The first bevel gear is meshed with the second bevel gear, and the gear is meshed with the ring gear.

[0024] According to the present application, the air pump output end is respectively provided with a first air pipe and a second air pipe, and the first air pipe and the second air pipe are both provided with a second solenoid valve. One end of the first air pipe is connected to the airbag, and one end of the second air pipe is connected to the air tank.

[0025] According to the present application, the drone body is provided with a support arm, one end of the support arm is provided with a rotating propeller, the support arm is configured to be electrically foldable, and the support arm and the rotating propeller rotate to the inside of the arc frame.

[0026] When a drone falls, the violent impact can easily cause internal circuit lines to break and electronic components to be damaged. However, the power batteries of most existing drones are neither equipped with a quick-detachment structure nor have targeted protection devices. This means that when a crash occurs, the power batteries will not only be damaged by the collision themselves, but will also continue to supply power due to failure to detach in time. At this time, the damaged circuit lines and electronic components are very likely to short-circuit, which poses a fire hazard. At the same time, the damaged electronic components will be burned, which not only aggravates the damage to the equipment, but also significantly increases the maintenance cost.

[0027] According to the present application, it also includes a battery protection component, which includes an elastic shock-absorbing frame, a second battery pack, an airbag box and a folding airbag. A third battery pack is provided at the bottom of the drone body, a pushing member is provided inside the drone body, a pull-out plate is provided on the drone body at the bottom of the third battery pack, the airbag box is provided at the bottom of the pull-out plate, the third battery pack is electrically connected to the inside of the drone body by plugging, the folding airbag is located above the third battery pack, the upper part of the folding airbag is fixedly connected to the drone body, the folding airbag is connected to the air pump, the second battery pack is provided inside the elastic shock-absorbing frame, the elastic shock-absorbing frame is provided inside the drone body, and the second battery pack is electrically connected to the bidirectional slide rail and the air pump respectively;

[0028] This battery protection component can effectively solve the problems of vulnerable power batteries during drone crashes, short circuit fires caused by continuous power supply, and high repair costs. The specific benefits are as follows:

[0029] In terms of power supply safety, the battery protection component reduces circuit risks through an independent power supply design. The second battery pack is set inside the elastic shock-absorbing frame, and the elastic shock-absorbing frame is located inside the drone body, which can provide buffer protection for the second battery pack and reduce the impact of the crash on it. At the same time, the second battery pack is electrically connected to the two-way slide rail and the air pump respectively, and can independently power the air pump, pusher and pull-out plate. Even if the third battery pack is damaged and causes a crash, the air pump, pusher and pull-out plate can still operate normally. The third battery pack independently provides power support for the drone flight, reducing the series connection of circuit lines and reducing the risk of failure caused by line series connection;

[0030] When the drone crashes, the battery protection assembly can quickly protect and detach the third battery pack. The pushing end of the pushing member pushes one side of the third battery pack. Since the third battery pack is electrically connected to the drone body through plugging, the push can disconnect it from the drone body and prevent continuous power supply. At the same time, the pulling end of the pull-out plate at the bottom of the third battery pack pulls, causing the third battery pack to fall into the airbag box at the bottom of the pull-out plate, achieving rapid detachment. In addition, the air pump injects air into the foldable airbag located above the third battery pack. The foldable airbag quickly expands downward and rests against the top of the third battery pack. Together with the airbag box, it provides comprehensive protection around the third battery pack, reducing the possibility of damage due to collision.

[0031] Through the synergistic effect of the above structures, not only can the power battery itself be protected, but also hidden dangers such as short circuit and fire caused by its continuous power supply can be avoided, the degree of equipment damage can be reduced, and maintenance costs can be reduced.

[0032] According to the present application, the elastic shock-absorbing frame includes a first spring, a battery box, an inner lining, a second spring, a blocking plate and a fixed plate. The bottom of the first spring is fixedly connected to the inside of the drone body, the upper part of the first spring is fixedly connected to the bottom of the battery box, the battery box is slidingly connected to the inside of the drone body, the inner lining is placed inside the battery box, the second battery pack is placed inside the inner lining, the bottom of the second spring is fixedly connected to the blocking plate, the upper part of the second spring is fixedly connected to the fixed plate, one side of the blocking plate is inserted into the outside of the upper side of the battery box, the fixed plate is fixedly connected to the inside of the drone body, and a second distribution box is provided on the outside of the battery box, the second battery pack is electrically connected to the second distribution box, and the second distribution box is electrically connected to the bidirectional slide rail and the air pump respectively.

[0033] According to the present application, the pushing member includes a telescopic member and a pushing frame, one side of the pushing frame is fixedly connected to the output end of the telescopic member, and the end of the telescopic member is fixedly connected to the inside of the drone body.

[0034] According to the present application, the pulling plate includes a third motor, a lead screw and a plate body. The plate body is slidingly connected to the inside of the drone body, the third motor is fixedly connected to the drone body, the output end of the third motor is fixedly connected to one end of the lead screw, and the lead screw is threadedly connected to the plate body.

[0035] According to the present application, a third air pipe and an air extraction pipe are respectively provided on the upper part of the folding airbag, the third air pipe is provided with a third solenoid valve, the air extraction pipe is provided with a one-way valve, and one end of the third air pipe is connected to the air pump.

[0036] A drone according to an embodiment of the second aspect of the present application includes a mounting anti-fall device according to an embodiment of the first aspect of the present application, including the drone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic structural diagram of a mounting anti-fall device provided by an embodiment of the present application from a first perspective;

[0039] Figure 2 A schematic diagram of a partial disassembled structure of the explosive components, heat shield, and cover provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of a portion of the structure of a hollow parachute provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of a portion of the structure of the drone provided in the embodiment of this application;

[0042] Figure 5 A schematic diagram of a portion of the structure of the elastic shock-absorbing frame and the airbag provided in an embodiment of the present application;

[0043] Figure 6 A schematic diagram of a portion of the structure of a bidirectional slide rail and an arc-shaped frame provided in an embodiment of the present application;

[0044] Figure 7 A schematic diagram of a portion of the structure of the rotating frame provided in an embodiment of the present application;

[0045] Figure 8 Provided for the implementation of this application Figure 7 Schematic diagram of the partial structure of the enlarged area A in the middle;

[0046] Figure 9 A schematic diagram of a partially disassembled structure of an elastic shock-absorbing frame provided in an embodiment of the present application;

[0047] Figure 10 A schematic diagram of a portion of the structure of the pusher, the pull-out plate, and the folding airbag from a first perspective provided in an embodiment of the present application;

[0048] Figure 11 A schematic diagram of a portion of the structure of the pusher, the pull-out plate, and the folding airbag from a second perspective provided in an embodiment of the present application;

[0049] Figure 12 A partial structural diagram of the pusher, pull-out plate and folding airbag from a third perspective provided in an embodiment of the present application.

[0050] In the figure: 100 - drone body; 110 - slot plate; 111 - limit rod; 120 - support arm; 121 - rotating propeller; 130 - third battery pack; 140 - push member; 141 - telescopic member; 142 - push frame; 150 - pull-out plate; 151 - third motor; 152 - lead screw; 153 - plate; 200 - anti-fall assembly; 210 - mounting plate; 211 - first battery pack; 212-First distribution box; 220-Storage box; 221-Electronic igniter; 222-Cover; 230-Barrel box; 231-Limiting block; 240-Gunpowder element; 250-Heat shield; 260-Gas tank; 261-Intake pipe; 262-Valve; 263-Hose; 264-First solenoid valve; 270-Hollow parachute; 271-Connecting belt; 400-Propeller protection assembly; 410-Double 411-second motor; 412-bidirectional threaded rod; 413-slider; 414-drive shaft; 415-second bevel gear; 416-gear; 420-arc frame; 430-first motor; 431-first bevel gear; 440-rotating frame; 441-gear ring; 450-airbag; 460-air pump; 461-first air pipe; 462-second air pipe; 463-second solenoid valve; 50 0-battery protection assembly; 510-elastic shock-absorbing frame; 511-first spring; 512-battery box; 513-lining; 514-second spring; 515-blocking plate; 516-fixing plate; 517-second distribution box; 520-second battery pack; 530-airbag box; 540-folding airbag; 541-third air pipe; 542-exhaust pipe; 543-third solenoid valve; 544-one-way valve. DETAILED DESCRIPTION

[0051] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] A mounting anti-fall device according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0053] like Figures 1-12 As shown, a mounting anti-falling device according to an embodiment of the present application includes a drone body 100 and an anti-falling assembly 200.

[0054] The anti-fall assembly 200 includes a mounting plate 210, a storage box 220, a barrel box 230, a powder piece 240, a heat shield 250, a gas tank 260, and a hollow parachute 270. The mounting plate 210 is slidably plugged into the upper portion of the drone body 100. An electronic igniter 221 is provided inside the storage box 220. The barrel box 230 is fixedly connected to the inside of the storage box 220. The powder piece 240 is installed inside the barrel box 230. The ignition end of the electronic igniter 221 ignites the gunpowder piece 240, the heat insulation board 250 is placed inside the barrel box 230, and the periphery of the heat insulation board 250 is attached to the inner wall of the barrel box 230. The hollow parachute 270 is folded and placed inside the barrel box 230. The periphery of the hollow parachute 270 is connected to the storage box 220. The gas tank 260 is fixedly connected to one side of the mounting plate 210, and one side of the gas tank 260 is connected to the hollow inside the hollow parachute 270.

[0055] The following describes the working process of a mounting anti-fall device according to a specific embodiment of the present application with reference to the accompanying drawings;

[0056] First, the mounting plate 210 is slidably inserted into the slot plate 110, and the limiting rod 111 is used to limit the mounting plate 210;

[0057] Then, when a crash occurs, the first battery pack 211 supplies power to the inside of the first distribution box 212, and the first distribution box 212 controls the operation of the electronic igniter 221 and the first solenoid valve 264. The electronic igniter 221 ignites the ignition end of the gunpowder member 240, igniting the gunpowder member 240. The gunpowder member 240 burns inside the barrel box 230, causing the air inside the barrel box 230 to expand rapidly, quickly pushing the heat insulation board 250 and the hollow parachute 270 out of the barrel box 230. At this time, the cover plate 222 is easily detachable, and the cover plate 222 can be easily lifted up and detached from the storage box 220 without affecting the rapid ejection of the hollow parachute 270.

[0058] Then, the first solenoid valve 264 opens, allowing the high-pressure air inside the gas tank 260 to be quickly inflated into the hollow parachute 270, so that the hollow parachute 270 is similar to a naughty castle, and the folded hollow parachute 270 is quickly expanded to achieve rapid deployment of the hollow parachute 270.

[0059] Therefore, through the dual effects of the thrust of the gunpowder piece 240 and the high-pressure inflation of the gas tank 260, the mid-altitude parachute 270 can break through the height limit and open quickly and completely even in low-altitude operation scenarios, significantly reducing the risk of crashing due to the parachute's failure to take effect in time, and meeting the safety requirements of low-altitude operations of drones.

[0060] Therefore, through the dual effects of the thrust of the gunpowder piece 240 and the high-pressure inflation of the gas tank 260, the mid-altitude parachute 270 can break through the height limit and open quickly and completely even in low-altitude operation scenarios, significantly reducing the risk of crashing due to the parachute's failure to take effect in time, and meeting the safety requirements of low-altitude operations of drones.

[0061] In addition, a mounting anti-fall device according to an embodiment of the present application also has the following additional technical features:

[0062] According to this application, if Figure 2 As shown, a slot plate 110 is provided on the upper part of the drone body 100 , a limit rod 111 is provided on one side of the slot plate 110 , and the mounting plate 210 is inserted into the inside of the slot plate 110 .

[0063] According to this application, if Figure 2 As shown, a cover plate 222 is provided on the upper portion of the storage box 220 , and the cover plate 222 is provided so as to be easily detached from the storage box 220 .

[0064] According to this application, if Figure 2 As shown, a limiting block 231 is provided at the inner bottom of the barrel box 230 , and the limiting blocks 231 are symmetrically arranged, and the gunpowder piece 240 is arranged to match the shape of the inner bottom of the barrel box 230 .

[0065] According to this application, if Figure 2 As shown, the amount of gunpowder set inside the gunpowder piece 240 can push the heat shield 250 and the hollow parachute 270 out of the barrel box 230.

[0066] According to this application, if Figure 3 As shown, a plurality of connecting belts 271 are arranged at intervals around the hollow parachute 270 , and the connecting belts 271 are fixedly connected to the inner side of the storage box 220 .

[0067] According to this application, if Figure 2 As shown, an air inlet pipe 261 is provided on one side of the gas tank 260 , and the air inlet pipe 261 is provided with a valve 262 .

[0068] According to this application, if Figure 2 As shown, a hose 263 is provided at the output end of the gas tank 260 , and the hose 263 is provided with a first solenoid valve 264 . One end of the hose 263 is connected to the hollow parachute 270 .

[0069] According to this application, if Figure 2 As shown, a first battery pack 211 and a first distribution box 212 are respectively provided on one side of the mounting plate 210 . The first battery pack 211 is electrically connected to the first distribution box 212 , and the first distribution box 212 is electrically connected to the electronic igniter 221 and the first solenoid valve 264 .

[0070] In pursuit of lightweight design, drone blades are usually made of light and thin materials, which makes them less impact-resistant and easily damaged by colliding with hard objects or deforming under force during a fall. However, when designing most existing drone anti-fall devices, they often focus on protecting the main body and core components of the aircraft, but ignore the targeted protection of the blades. At the same time, a power motor is also installed at the bottom of the blade, making it difficult for the blades and power motor to be effectively protected during a fall impact, significantly increasing the risk of damage and thus increasing the equipment maintenance cost.

[0071] According to this application, if Figure 4-Figure 8 As shown, it also includes a propeller protection assembly 400, which includes a bidirectional slide rail 410, an arc frame 420, a first motor 430, a rotating frame 440, an airbag 450 and an air pump 460. The arc frame 420 is symmetrically arranged, and the arc frame 420 is fixedly connected to the sliding end of the bidirectional slide rail 410. The sliding end of the bidirectional slide rail 410 is slidably connected to the drone body 100. The first motor 430 is symmetrically arranged, and the first motor 430 is fixedly connected to the sliding end of the bidirectional slide rail 410. The output end of the first motor 430 is transmission-connected to the rotating frame 440. The rotating frame 440 is internally rotatably connected to the arc frame 420. The airbag 450 is fixedly connected to the rotating frame 440. The airbag 450 is made of elastic material. The air pump 460 is fixedly connected to the inside of the drone body 100. The output end of the air pump 460 is connected to the airbag 450, and the output end of the air pump 460 is connected to the gas tank 260.

[0072] The working principle of the propeller protection assembly 400 is centered around two scenarios: daily use and crash protection. The various structures work together to protect the rotating propeller 121. The working principle is as follows:

[0073] In normal non-flying mode, the output end of the second motor 411 drives the bidirectional threaded rod 412 to rotate, driving the movement of the slider 413, causing the arc frame 420 fixedly connected to the slider 413 to move symmetrically to a position where it is exposed from the drone body 100. At this time, the first motor 430 is started, and the first bevel gear 431 at its output end engages with the ring gear 441 of the rotating frame 440, driving the rotating frame 440 to rotate inside the arc frame 420 until it is blocked outside the rotating propeller 121, forming a storage protection state to avoid bumps during transportation or storage. When the drone enters flight mode, the output end of the second motor 411 drives the bidirectional threaded rod 412 to rotate, driving the slider 413 to slide in the opposite direction, retracting the arc frame 420 to the inside of the drone body 100 to reduce flight wind resistance;

[0074] When the drone is at risk of crashing, the protection mechanism is quickly activated. The output end of the second motor 411 drives the bidirectional threaded rod 412 to rotate, driving the slider 413 to move. The slider 413 instantly drives the arc frame 420 to slide out of the drone body 100, and the output end of the first motor 430 synchronously drives the rotating frame 440 to close, wrapping the rotating propeller 121 in the space formed by the arc frame 420 and the rotating frame 440. At the same time, the air pump 460 inflates the airbag 450 on the rotating frame 440 through the first air pipe 461. The airbag 450 made of elastic material expands in both directions, the outer side cushions the impact force, and the inner side is close to the rotating propeller 121 to limit its shaking. In addition, the air pump 460 is connected to the gas tank 260 through the second air pipe 462 and the second solenoid valve 463, and the gas source can be replenished to the gas tank 260 in advance to ensure the coordinated protection of multiple components.

[0075] During the entire process, the second battery pack 520 provides independent power support for the bidirectional slide rail 410, the first motor 430 and the air pump 460, ensuring that the protection mechanism can still operate normally when the third battery pack 130 fails. Through the combination of mechanical structure and aerodynamic protection, all-round protection of the propeller and power components is achieved.

[0076] According to this application, if Figure 6 As shown, the bidirectional slide rail 410 includes a second motor 411, a bidirectional threaded rod 412 and a slider 413. A plurality of bidirectional threaded rods 412 are symmetrically arranged. The bidirectional threaded rods 412 are rotatably connected to the drone body 100, and the slider 413 is slidably connected to the drone body 100. The second motor 411 is fixedly connected to the drone body 100. The output end of the second motor 411 is transmission-connected to a bidirectional threaded rod 412. Multiple bidirectional threaded rods 412 are transmission-connected in sequence. The bidirectional threaded rods 412 are threadedly connected to the slider 413, and the slider 413 is fixedly connected to the arc frame 420.

[0077] According to this application, if Figure 8As shown, a first bevel gear 431 is provided at the output end of the first motor 430, a transmission shaft 414 is provided inside the slider 413, a second bevel gear 415 is provided at one end of the transmission shaft 414, a gear 416 is provided at the other end of the transmission shaft 414, and a rotating frame 440 is provided with a ring gear 441. The first bevel gear 431 is meshed with the second bevel gear 415, and the gear 416 is meshed with the ring gear 441.

[0078] According to this application, if Figure 8 As shown, the output ends of the air pump 460 are respectively provided with a first air pipe 461 and a second air pipe 462 , and the first air pipe 461 and the second air pipe 462 are both provided with a second solenoid valve 463 . One end of the first air pipe 461 is connected to the airbag 450 , and one end of the second air pipe 462 is connected to the gas tank 260 .

[0079] According to this application, if Figure 4 As shown, the drone body 100 is provided with a support arm 120, and a rotating propeller 121 is provided at one end of the support arm 120. The support arm 120 is configured to be electrically foldable, and the support arm 120 and the rotating propeller 121 rotate to the inside of the arc frame 420.

[0080] When a drone falls, the violent impact can easily cause internal circuit lines to break and electronic components to be damaged. However, the power batteries of most existing drones are neither equipped with a quick-detachment structure nor have targeted protection devices. This means that when a crash occurs, the power batteries will not only be damaged by the collision themselves, but will also continue to supply power due to failure to detach in time. At this time, the damaged circuit lines and electronic components are very likely to short-circuit, which poses a fire hazard. At the same time, the damaged electronic components will be burned, which not only aggravates the damage to the equipment, but also significantly increases the maintenance cost.

[0081] According to this application, if Figures 9-12 As shown, it also includes a battery protection assembly 500, which includes an elastic shock-absorbing frame 510, a second battery pack 520, an airbag box 530 and a folding airbag 540. A third battery pack 130 is provided at the bottom of the drone body 100, a pushing member 140 is provided inside the drone body 100, a pull-out plate 150 is provided at the bottom of the third battery pack 130 of the drone body 100, and the airbag box 530 is provided at the bottom of the pull-out plate 150. The third battery pack 130 is electrically connected to the interior of the drone body 100 by plugging. The folding airbag 540 is located above the third battery pack 130, and the upper part of the folding airbag 540 is fixedly connected to the drone body 100. The folding airbag 540 is connected to the air pump 460. The second battery pack 520 is provided inside the elastic shock-absorbing frame 510, which is provided inside the drone body 100. The second battery pack 520 is electrically connected to the bidirectional slide rail 410 and the air pump 460 respectively.

[0082] The working principle of the battery protection assembly 500 is mainly reflected in two aspects: daily power supply guarantee and crash protection response. The various structures cooperate with each other to achieve safe protection of the battery. Its working principle is as follows:

[0083] During daily operation, the second battery pack 520 is placed inside the elastic shock-absorbing frame 510, which is installed inside the drone body 100. The first spring 511 and the second spring 514 therein can effectively buffer the vibration during the flight of the drone, providing a stable working environment for the second battery pack 520. At the same time, the second battery pack 520 is electrically connected to the two-way slide rail 410 and the air pump 460 respectively through the second distribution box 517, independently powering these components. The third battery pack 130 is electrically connected to the inside of the drone body 100 by plugging, specifically providing power for the drone flight. The clear division of labor between the two reduces the series connection of circuit lines and reduces the risk of failure.

[0084] When the drone crashes, the protection mechanism is quickly activated. The output end of the telescopic member 141 drives the push frame 142 to extend, pushing one side of the third battery pack 130, causing it to disengage from the plug-in structure inside the drone body 100, disconnecting the electrical connection and preventing continuous power supply. At the same time, the output end of the third motor 151 drives the lead screw 152 to rotate, driving the plate 153 to slide, pulling out the support at the bottom of the third battery pack 130, causing the third battery pack 130 to fall into the airbag box 530 at the bottom of the pull-out plate 150. During this process, the air pump 460 inflates the foldable airbag 540 through the third air pipe 541. The foldable airbag 540 rapidly expands downward and rests on the upper part of the third battery pack 130, cooperating with the airbag box 530 to form a wrapping protection for the third battery pack 130 from the top and bottom directions. In addition, if the foldable airbag 540 needs to be deflated, it can be achieved through the exhaust pipe 542 and the third solenoid valve 543. The one-way valve 544 can prevent the gas from flowing back during inflation.

[0085] During the entire process, due to the independent power supply of the second battery pack 520, even if the third battery pack 130 fails, key components such as the pusher 140, the pull-out plate 150 and the air pump 460 can still operate normally, ensuring the reliable operation of the protection mechanism.

[0086] According to this application, if Figure 9As shown, the elastic shock-absorbing frame 510 includes a first spring 511, a battery box 512, an inner lining 513, a second spring 514, a blocking plate 515 and a fixing plate 516. The bottom of the first spring 511 is fixedly connected to the inside of the drone body 100, the upper part of the first spring 511 is fixedly connected to the bottom of the battery box 512, the battery box 512 is slidably connected to the inside of the drone body 100, the inner lining 513 is placed inside the battery box 512, and the second battery pack 520 is placed in the inner lining 513. On the inside, the bottom of the second spring 514 is fixedly connected to the blocking plate 515, the upper part of the second spring 514 is fixedly connected to the fixing plate 516, one side of the blocking plate 515 is inserted into the upper outside of the battery box 512, the fixing plate 516 is fixedly connected to the inside of the drone body 100, and a second distribution box 517 is provided on the outside of the battery box 512, the second battery pack 520 is electrically connected to the second distribution box 517, and the second distribution box 517 is electrically connected to the bidirectional slide rail 410 and the air pump 460 respectively.

[0087] According to this application, if Figure 11 As shown, the pushing member 140 includes a telescopic member 141 and a pushing frame 142. One side of the pushing frame 142 is fixedly connected to the output end of the telescopic member 141, and the end of the telescopic member 141 is fixedly connected to the inside of the drone body 100. It should be noted that the output end of the telescopic member 141 pushes the pushing frame 142, and the pushing frame 142 pushes the third battery pack 130 to separate from the drone body 100 to disconnect the electrical connection, thereby achieving rapid power off.

[0088] According to this application, if Figure 11 As shown, the pull-out plate 150 includes a third motor 151, a screw 152 and a plate 153. The plate 153 is slidably connected to the inside of the drone body 100, the third motor 151 is fixedly connected to the drone body 100, the output end of the third motor 151 is fixedly connected to one end of the screw 152, and the screw 152 is threadedly connected to the plate 153. It should be noted that the output end of the third motor 151 drives the screw 152 to rotate, and the screw 152 drives the plate 153 to move, and the third battery pack 130 will fall down into the airbag box 530.

[0089] According to this application, if Figure 8 and Figure 11 As shown, a third air pipe 541 and an exhaust pipe 542 are respectively provided on the upper part of the folding airbag 540. The third air pipe 541 is provided with a third solenoid valve 543, and the exhaust pipe 542 is provided with a one-way valve 544. It should be noted that the exhaust pipe 542 is used to extract and discharge the air inside the folding airbag 540, and one end of the third air pipe 541 is connected to the air pump 460.

[0090] It should be noted that the second distribution box 517 is electrically connected to the telescopic member 141 , the third motor 151 and the third solenoid valve 543 respectively.

[0091] A drone according to an embodiment of the second aspect of the present application includes a mounting anti-fall device according to an embodiment of the first aspect of the present application, including a drone body 100.

[0092] It should be noted that the telescopic member 141 is any one of an electric push rod, an electric cylinder, a hydraulic cylinder and a pneumatic cylinder.

[0093] Other structures and operations of a mounting anti-fall device according to an embodiment of the present application are known to ordinary technicians in this field and will not be described in detail here.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative.

[0095] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A mounting anti-fall device, characterized in that: include: UAV body (100); The anti-fall assembly (200) comprises a mounting plate (210), a storage box (220), a gun barrel box (230), a powder piece (240), a heat shield (250), a gas tank (260) and a hollow parachute (270), wherein the mounting plate (210) is slidably plugged into the upper portion of the drone body (100), an electronic igniter (221) is provided inside the storage box (220), the gun barrel box (230) is fixedly connected to the inside of the storage box (220), and the powder piece (240) is installed inside the gun barrel box (230). The ignition end of the electronic igniter (221) ignites the gunpowder piece (240), the heat shield (250) is placed inside the barrel box (230), and the circumference of the heat shield (250) is attached to the inner wall of the barrel box (230). The hollow parachute (270) is folded and placed inside the barrel box (230), and the circumference of the hollow parachute (270) is connected to the storage box (220). The gas tank (260) is fixedly connected to one side of the mounting plate (210), and one side of the gas tank (260) is communicated with the hollow space inside the hollow parachute (270).

2. A mounting anti-fall device according to claim 1, characterized in that: A slot plate (110) is provided on the upper portion of the drone body (100), a limiting rod (111) is provided on one side of the slot plate (110), and the mounting plate (210) is inserted into the interior of the slot plate (110).

3. The mounting anti-falling device according to claim 1, characterized in that: A cover plate (222) is provided on the upper portion of the storage box (220), and the cover plate (222) is arranged to be easily detached from the storage box (220).

4. The mounting anti-fall device according to claim 1, characterized in that: A limiting block (231) is provided at the inner bottom of the barrel box (230), and the limiting blocks (231) are symmetrically arranged. The gunpowder piece (240) is arranged to match the shape of the inner bottom of the barrel box (230).

5. The mounting anti-falling device according to claim 1, characterized in that: The amount of gunpowder arranged inside the gunpowder piece (240) can push the heat shield (250) and the hollow parachute (270) out of the barrel box (230).

6. The mounting anti-fall device according to claim 1, characterized in that: A plurality of connection belts (271) are arranged at intervals around the circumference of the hollow parachute (270), and the connection belts (271) are fixedly connected to the inner side of the storage box (220).

7. The mounting anti-fall device according to claim 1, characterized in that: An air inlet pipe (261) is provided on one side of the gas tank (260), and a valve (262) is provided on the air inlet pipe (261).

8. The mounting anti-fall device according to claim 1, characterized in that: The output end of the gas tank (260) is provided with a hose (263), the hose (263) is provided with a first electromagnetic valve (264), and one end of the hose (263) is communicated with the hollow parachute (270).

9. The mounting anti-falling device according to claim 8, characterized in that: A first battery pack (211) and a first distribution box (212) are respectively provided on one side of the mounting plate (210); the first battery pack (211) is electrically connected to the first distribution box (212); and the first distribution box (212) is electrically connected to the electronic igniter (221) and the first solenoid valve (264).

10. A drone, characterized in that: It comprises a mounting anti-fall device according to any one of claims 1 to 9, comprising the drone body (100).

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