Aerial rescue device for water rescue

Abstract

The application belongs to the technical field of unmanned aerial vehicles, and particularly relates to a flying lifesaving device for water rescue, which comprises an unmanned aerial vehicle body, an installation portion arranged in the unmanned aerial vehicle body and fixedly connected with the unmanned aerial vehicle body, an air storage portion arranged in the middle of the installation portion, lifesaving portions arranged at the lower ends of the two sides of the installation portion and inflated by the air storage portion, and the lifesaving portion comprising an unfolding frame, an unfolding board, an unfolding air bag, a connecting cable, a rotating wheel, a sliding block and a return spring, the unfolding frame being fixedly connected with the installation portion, the unfolding board being arranged in the unfolding frame, one end of the unfolding air bag being fixedly connected with the unfolding frame, the connecting cable being fixedly connected with the unfolding board after penetrating through the unfolding air bag, the sliding block being slidingly arranged in the unfolding frame and fixedly connected with the other end of the connecting cable. The three structures of the rigid frame, the multi-chamber and the unfolding board improve the lifesaving stability and prevent the lifesaving device from rolling over. The waterproof function, the double-mode search function and the sound-light reflection function realize all-time operation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of unmanned aerial vehicles, and particularly relates to a flying lifesaving device for water rescue. BACKGROUND

[0002] Water rescue is an important emergency field for protecting public life safety. Traditional rescue methods mainly rely on manual throwing of life buoys, rescue boats, or helicopter suspension rescue, but there are problems such as slow response speed, great geographical environment limitation, high safety risk of rescue personnel, etc. With the development of unmanned aerial vehicle technology, water rescue devices based on unmanned aerial vehicles have gradually become a research hotspot. They can effectively improve the rescue efficiency by flying to the target area quickly and throwing lifesaving equipment.

[0003] At present, the water rescue unmanned aerial vehicle device in the prior art still has the following shortcomings:

[0004] Lack of lifesaving stability and safety: traditional lifesaving airbags are mostly single-chamber structures, which lose buoyancy once damaged, and lack rigid support frames, which are easy to twist or roll over due to water flow impact after inflation, making it difficult for the fallen person to grasp; some devices use pre-inflated life buoys, which are large in size, limited in number, and prone to airbag damage due to collision during deployment.

[0005] Limited environmental adaptability and search capability: most unmanned aerial vehicle rescue devices do not have integrated waterproof design, and core components such as batteries and sensors are easily damaged by rain and salt spray; the search module mostly relies on a single visible light camera, which has poor target recognition capability in low-visibility environments such as night, fog, and smoke, making it difficult to operate all-weather; at the same time, there is a lack of effective sound and light positioning markers after the lifesaving equipment is deployed, making it difficult for rescue personnel to quickly lock the target position.

[0006] Low operation efficiency and automation level: the lifesaving part and the unmanned aerial vehicle body are mostly fixedly connected, and replacing the air cylinder and repairing the parts requires disassembling multiple bolts, which takes a long time and affects the continuous rescue efficiency; inflation control mostly relies on manual triggering or timed release, lacks pressure closed-loop monitoring and safety relief mechanism, and is prone to over-inflation explosion or under-pressure failure risk; some devices need to be remotely controlled by humans to complete the whole process of "searching, positioning, and deploying", which is complex and has a lagging response;

[0007] In view of the problems of insufficient lifesaving stability, poor environmental adaptability, and low operation efficiency in the prior art, a flying lifesaving device for water rescue is needed, which integrates rigid support, multi-chamber safety structure, all-weather search and positioning, and modular intelligent control. SUMMARY

[0008] The water rescue flying type lifesaving device can improve lifesaving stability and prevent rollover through the triple structure of rigid frame, multi-chamber and unfolding plate; and can realize all-time operation through waterproofing, dual-mode search and sound-light reflection.

[0009] The technical scheme adopted by the present application is as follows:

[0010] The water rescue flying type lifesaving device comprises a UAV main body, an installation portion is arranged in the UAV main body, the installation portion is fixedly connected with the UAV main body, a gas storage portion is arranged in the middle of the installation portion, lifesaving portions are arranged at the lower ends of the two sides of the installation portion, and the lifesaving portions are inflated by the gas storage portion.

[0011] The lifesaving portion comprises an unfolding frame, an unfolding plate, an unfolding air bag, a connecting cable, a rotating wheel, a sliding block and a return spring, the unfolding frame is fixedly connected with the installation portion, the unfolding plate is arranged in the unfolding frame, one end of the unfolding air bag is fixedly connected with the unfolding frame, the connecting cable is fixedly connected with the unfolding plate after penetrating through the unfolding air bag, the sliding block is slidingly arranged in the unfolding frame, and the other end of the connecting cable is fixedly connected with the sliding block.

[0012] In a preferred scheme, the UAV main body adopts an integrated waterproof sealing structure, and a high-definition wide-angle camera and an infrared thermal imager are integrated in the head of the UAV main body.

[0013] In a preferred scheme, a support frame is arranged at the unfolding air bag, the support frame has a rigid annular structure, and a connecting hole for stably penetrating the connecting cable is arranged in the inside of the support frame.

[0014] In a preferred scheme, the unfolding air bag adopts a multi-chamber independent inflation structure, each inflation chamber is connected through an independent air guide hole, and a one-way check valve is arranged in the air guide hole.

[0015] In a preferred scheme, a guide sliding groove matched with the sliding block is arranged in the inside of the unfolding frame, and a wear-resistant ceramic coating is arranged on the surface of the guide sliding block.

[0016] In a preferred scheme, a sound-light device is fixedly arranged at the unfolding plate, and the sound-light device comprises an LED warning light and a waterproof buzzer.

[0017] In a preferred scheme, a reflective layer is arranged on the surface of the unfolding air bag.

[0018] In a preferred embodiment, the mounting part includes a mounting base, a locking block, and an elastic locking member. The mounting base is fixedly connected to the upper part of the unfolding frame, and the upper part of the mounting base can be inserted into the middle of the drone body. The locking block is slidably disposed inside the mounting base and can be inserted into the interior of the drone body. The elastic locking member is disposed between the locking block and the mounting base.

[0019] In a preferred embodiment, the gas storage unit includes a distribution seat, a solenoid valve, a gas storage cylinder, and a fixing screw. The distribution seat is fixedly connected to the lower end of the mounting base. The solenoid valve is fixedly connected to the interior of the distribution seat. The output end of the solenoid valve is connected to the gas distribution chamber inside the distribution seat. The gas storage cylinder can be installed inside the distribution seat. After the gas storage cylinder is installed inside the distribution seat, the input end of the gas storage cylinder is connected to the input end of the solenoid valve. The fixing screw is rotatably connected to the interior of the gas storage cylinder, and the other end of the fixing screw is threadedly connected to the interior of the distribution seat.

[0020] In a preferred embodiment, a pressure sensor and a safety relief valve are provided at the gas distribution compartment of the distribution seat. The pressure sensor is located on the inner wall of the distribution seat and cooperates with the output end of the solenoid valve. The safety relief valve is installed on the top of the distribution seat, and when the gas pressure inside the gas storage tank exceeds a preset threshold, the safety relief valve can automatically open to release excess gas.

[0021] The technical effects achieved by this invention are as follows:

[0022] This invention significantly improves the stability of the life-saving platform through a triple structural design of "rigid frame - multi-chamber buoyancy - deployment plate support". The deployment airbag has a built-in rigid annular support frame, which forms a regular annular buoyancy area after inflation, avoiding the shape distortion caused by water flow impact of traditional airbags. The multi-chamber independent inflation structure ensures uniform buoyancy distribution, and even if a single chamber is damaged, it will not affect the overall balance. The deployment plate forms a rigid plane after unfolding, serving as a stable support for the person falling into the water to grasp and lean on. Combined with the anti-slip texture on the surface of the airbag, it effectively prevents the person from tipping over or slipping in wind and waves, solving the problem of "easy to drift and difficult to grasp" of traditional life rings, and providing a safe and reliable floating platform for the person falling into the water.

[0023] The application realizes stable operation in all time periods and complex environments through the cooperation of hardware protection and multi-modal perception. The unmanned aerial vehicle main body adopts an integrated waterproof sealing structure to block rainwater and salt mist from entering, thereby ensuring the normal operation of core components in heavy rain and high humidity environments. The high-definition wide-angle camera and infrared thermal imager integrated in the head form a dual-mode search of "visible light + infrared", the former covers a large range of water surface during the day, and the latter penetrates low-visibility environments such as night, fog and smoke, thereby realizing long-time target identification. The reflective coating and sound-light device of the airbag further enhance the positioning capability. Even in bad weather, rescue personnel can quickly lock the target through visual and auditory signals, breaking through the limitations of traditional rescue which is limited to daytime and fine weather.

[0024] The application optimizes the operation process through "modular quick installation + intelligent linkage control", and realizes efficient cooperation in multiple links. The locking block and elastic locking piece of the installation part are designed, so that the disassembly and assembly of the lifesaving part, the gas storage part and the unmanned aerial vehicle main body do not require tools and can be quickly completed by a single person, which is suitable for rapid deployment before rescue and consumable replacement after rescue. The electromagnetic valve of the gas storage part supports remote instructions or autonomous triggering of the unmanned aerial vehicle, realizing the automation of the whole process of "searching, positioning, inflating and deploying", reducing the manual intervention link. The closed-loop control of the pressure sensor and the safety relief valve ensures that the inflation process can be accurately completed without manual monitoring, so that the rescue personnel can focus on target guidance and on-site command, and the cooperative efficiency of "discovery, rescue and transfer" is improved as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the overall schematic diagram of the embodiment of the application;

[0026] Figure 2 is the lifesaving part deployment schematic diagram of the embodiment of the application;

[0027] Figure 3 is the installation part and unmanned aerial vehicle main body separation schematic diagram of the embodiment of the application;

[0028] Figure 4 is the installation part, gas storage part and lifesaving part separation schematic diagram of the embodiment of the application;

[0029] Figure 5 is the installation part and gas storage part schematic diagram of the embodiment of the application;

[0030] Figure 6 is the gas storage part exploded view of the embodiment of the application;

[0031] Figure 7 is the gas storage cylinder schematic diagram of the embodiment of the application;

[0032] Figure 8 is the lifesaving part exploded view of the embodiment of the application;

[0033] Figure 9This is a top view of the interior of the lifesaving section according to an embodiment of the present invention;

[0034] Figure 10 This is an exploded view of the interior of the unfolding frame according to an embodiment of the present invention;

[0035] Figure 11 This is an embodiment of the present invention. Figure 10 Schematic diagram at point A in the middle;

[0036] Figure 12 This is a cross-sectional view of the lifesaving section in an embodiment of the present invention.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. UAV body; 2. Mounting section; 201. Mounting base; 202. Locking block; 203. Elastic locking element; 3. Air storage section; 301. Diverter seat; 3011. Pressure sensor; 3012. Safety pressure relief valve; 302. Solenoid valve; 303. Air storage cylinder; 304. Fixing screw; 4. Life-saving section; 401. Deployment frame; 402. Deployment plate; 4021. Sound and light device; 403. Deployment airbag; 4031. Support frame; 404. Connecting cable; 405. Rotating wheel; 406. Sliding block; 407. Return spring. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0043] Please see Figures 1 to 12As shown, the application provides a flying type lifesaving device for water rescue, which comprises a UAV main body 1, an installation part 2 arranged in the UAV main body 1 and fixedly connected with the UAV main body 1, a gas storage part 3 arranged in the middle of the installation part 2, and a lifesaving part 4 arranged at the lower end of the installation part 2 and inflated by the gas storage part 3.

[0044] The lifesaving part 4 comprises a deployment frame 401, a deployment plate 402, a deployment airbag 403, a connecting cable 404, a rotating wheel 405, a sliding block 406, and a reset spring 407, the deployment frame 401 is fixedly connected with the installation part 2, the deployment plate 402 is arranged in the deployment frame 401, one end of the deployment airbag 403 is fixedly connected with the deployment frame 401, the connecting cable 404 is fixedly connected with the deployment plate 402 after passing through the deployment airbag 403, the sliding block 406 is slidingly arranged in the deployment frame 401, and the other end of the connecting cable 404 is fixedly connected with the sliding block 406.

[0045] Specifically, in the initial state, the deployment airbag 403 of the lifesaving part 4 is in a folded state and is stored in the deployment frame 401, the deployment plate 402 is connected with the sliding block 406 through the connecting cable 404, the reset spring 407 is in a stretched state, and the rotating wheel 405 guides the connecting cable 404 to reduce friction.

[0046] The high-pressure gas is stored in the gas storage part 3 in advance, and the installation part 2 is fixedly connected with the UAV main body 1 to form a compact modular structure.

[0047] After the UAV main body 1 flies to the target area, the gas storage part 3 releases the high-pressure gas into the inside of the deployment airbag 403 through the control of the internal equipment, so that the volume of the deployment airbag 403 increases under the action of the gas pressure, one end of the deployment airbag 403 fixed with the deployment frame 401 is the fulcrum, the other end pulls the deployment plate 402 through the connecting cable 404, simultaneously drives the sliding block 406 to slide along the inside of the deployment frame 401, further compresses the reset spring 407, the deployment plate 402 forms a rigid support after being unfolded, and cooperates with the completely inflated deployment airbag 403 to jointly constitute a stable lifesaving platform, the deployment airbag 403 provides buoyancy support for the fallen person, and the deployment plate 402 can be used as a gripping or leaning structure to improve the safety of rescue.

[0048] Please refer to Figure 1 and Figure 2 As shown, the UAV main body 1 adopts an integrated waterproof sealing structure, and a high-definition wide-angle camera and an infrared thermal imager are integrated on the head of the UAV main body 1.

[0049] Through the integrated sealing design, it can effectively block the intrusion of rain, spray, mist and other liquids into the body, ensure that the core components such as battery, circuit board, motor, etc. are not damaged in the harsh water environment such as heavy rain, high humidity, salt spray, etc., solve the problem of "weak waterproof performance and easy to be damaged by water" of traditional unmanned aerial vehicles, and expand the application scenarios to complex rescue environments such as oceans, lakes and rivers.

[0050] The high-definition wide-angle camera can realize wide coverage of the water surface through a large field of view, reduce the search blind area, and cooperate with high-resolution images to clearly identify the details of the fallen person's clothes, life-saving devices, etc., and improve the target recognition efficiency.

[0051] The infrared thermal imager can not be limited by light conditions and can quickly locate the position of the fallen person in low-visibility environments such as night, smoke, and haze by capturing the temperature difference between the human body and the water surface, solving the pain point of traditional visible light cameras "night failure", and realizing all-weather rescue response.

[0052] The two work together to form a "visible light + infrared" dual-mode search, and the unmanned aerial vehicle body 1 can arrive at the target area and complete the scanning of the surrounding area to gain golden rescue time for the fallen person;

[0053] The real-time returned high-definition image and thermal imaging data can be transmitted to the ground command system to help rescue personnel remotely judge the state of the fallen person and plan the optimal rescue path, realizing the collaborative operation of "unmanned aerial vehicle search-personnel / ship precise rescue", and reducing the rescue blindness.

[0054] Please refer to Figure 2 and Figure 3 As shown, the support frame 4031 is provided at the deployment airbag 403, and the support frame 4031 is a rigid annular structure, and the inside of the support frame 4031 is provided with a connecting hole for stably passing the connecting cable 404;

[0055] The rigid annular support frame 4031 provides "skeleton type" support for the deployment airbag 403 through the rigid structure of metal or high-strength engineering plastic, limits the radial deformation of the deployment airbag 403, ensures that a regular buoyancy area is formed after inflation, reduces the inflation dead angle, shortens the deployment time, avoids local bulging or collapse, stably provides the preset buoyancy, and disperses the tension of the connecting cable 404 to prevent the deployment airbag 403 from being torn locally by force and improve the impact resistance and service life;

[0056] The internal connecting hole serves as a rigid channel for the connecting cable 404, can guide the connecting cable 404 to move along the preset path, avoid mechanical jamming caused by displacement and winding, and ensure that the deployment action of the lifesaving part 4 is accurate and controllable;

[0057] The connection cable 404 is concentrated on the support frame 4031 by the smooth inner wall or wear-resistant bushing design, reducing the wear and tear of the flexible deployment airbag 403, and improving the durability of the deployment airbag 403.

[0058] Please refer to Figure 12 As shown, the deployment airbag 403 adopts a multi-chamber independent inflation structure, each inflation chamber is connected through an independent air guide hole, and a one-way check valve is arranged in the air guide hole;

[0059] The multi-chamber design separates the deployment airbag 403 into independent sealed spaces. When a single chamber is damaged due to sharp object puncture, wear and tear, etc., other chambers can still maintain an inflated state and provide buoyancy, avoiding the fatal defect of traditional single-chamber airbags that are “all damaged and invalid”;

[0060] The one-way check valve only allows gas to flow from the gas storage part 3 to the chamber in one direction. When a chamber is damaged or the pressure drops, the check valve automatically closes, blocking the reverse flow of gas from other chambers to the damaged chamber through the air guide hole, ensuring the stability of the air pressure of the intact chamber.

[0061] Please refer to Figure 9 and Figure 11 As shown, the inside of the deployment frame 401 is provided with a guide sliding groove matched with the sliding block 406, and the surface of the sliding block 406 is covered with a wear-resistant ceramic coating;

[0062] The matching design of the guide sliding groove and the guide sliding block, such as the T-shaped, dovetail-shaped and other matching structures, provides rigid guide constraints for the movement of the sliding block 406, limiting its lateral deviation or rotation during sliding, and ensuring that the connection cable 404 always pulls the deployment plate 402 along the preset path;

[0063] The low-friction property of the ceramic coating reduces the movement resistance of the sliding block in the sliding groove, avoiding the “stuck” or “bounce” phenomenon caused by excessive resistance. Especially in low-temperature or high-humidity environments, the ceramic coating is not prone to rust or adhesive wear, and still runs smoothly in complex environments.

[0064] Please refer to Figures 1 to 3 As shown, the sound and light device 4021 is fixedly arranged at the deployment plate 402, and the sound and light device 4021 includes an LED warning light and a waterproof buzzer;

[0065] The LED warning light forms obvious visual identification in night, fog, smoke or complex water environment through high-brightness light emission and specific flashing mode, solves the pain point of “difficult to find at night” of traditional life-saving devices, improves positioning efficiency, and shortens search and rescue time;

[0066] The waterproof buzzer can provide direction guidance for rescue personnel by emitting high-frequency sound waves that penetrate background interference in noisy environments. Especially in visually obstructed scenarios, the sound signal can function independently and form a "sound and light double positioning" with the LED light, significantly improving positioning accuracy and reliability in complex environments. At the same time, it has the characteristics of light weight, low power consumption and high waterproofness, providing stable reliability for water rescue.

[0067] Referring to Figures 1 to 3 As shown, the surface of the expanded air bag 403 is provided with a reflective layer;

[0068] The reflective layer reflects ambient light, making the expanded air bag 403 appear bright and reflective during the day, significantly improving the contrast with the water surface background and solving the problem of "easy fusion with the water surface when light is insufficient" in traditional non-reflective designs.

[0069] At the same time, when the search light of the rescue helicopter or rescue ship is shining, the reflective layer produces a strong "light spot effect", helping air personnel quickly distinguish the life-saving device from other waterborne objects.

[0070] Referring to Figure 4 As shown, the mounting portion 2 includes a mounting seat 201, a locking block 202 and an elastic locking member 203, the mounting seat 201 is fixedly connected with the upper part of the expansion frame 401, and the upper part of the mounting seat 201 can be inserted into the middle part of the unmanned aerial vehicle body 1, the locking block 202 is slidingly arranged inside the mounting seat 201, and the locking block 202 can be inserted into the inside of the unmanned aerial vehicle body 1, and the elastic locking member 203 is arranged between the locking block 202 and the mounting seat 201;

[0071] The mounting seat 201 is positioned: the upper part of the mounting seat 201 is inserted into the middle part of the unmanned aerial vehicle body 1 reserved interface, and the precise fit between the inner wall of the interface and the outer wall of the mounting seat 201 realizes the preliminary positioning, ensuring the coaxiality and structural alignment of the mounting portion 2 and the unmanned aerial vehicle body 1.

[0072] During the insertion of the mounting seat 201, the locking block 202 slides to the inside of the mounting seat 201 due to the extrusion of the edge of the interface of the unmanned aerial vehicle body 1 and compresses the elastic locking member 203;

[0073] When the mounting seat 201 is completely inserted, the locking block 202 reaches the locking hole position inside the unmanned aerial vehicle body 1, the elastic locking member 203 releases potential energy, pushes the locking block 202 to pop out and insert into the locking hole, forms mechanical engagement, and rigidly fixes the mounting seat 201 and the unmanned aerial vehicle body 1.

[0074] When the installation part 2 needs to be disassembled, the exposed end of the locking block 202 is pressed manually to overcome the elastic force of the elastic locking piece 203, so that the locking block 202 is retracted into the inside of the mounting seat 201, and is separated from the locking hole of the unmanned aerial vehicle body 1. After the locking block 202 is completely retracted, the mounting seat 201 can be pulled out of the unmanned aerial vehicle body 1, realizing the quick separation of the installation part 2 and the unmanned aerial vehicle body 1, and facilitating the replacement of other equipment.

[0075] Please refer to Figures 4 to 7 As shown, the gas storage part 3 comprises a flow distribution seat 301, an electromagnetic air valve 302, a gas cylinder 303 and a fixed screw rod 304. The flow distribution seat 301 is fixedly connected with the lower end of the mounting seat 201. The electromagnetic air valve 302 is fixedly connected with the inside of the flow distribution seat 301. The electromagnetic air valve 302 is electrically connected with the control module inside the unmanned aerial vehicle body 1. The output end of the electromagnetic air valve 302 is in communication with the gas distribution chamber inside the flow distribution seat 301. The gas cylinder 303 can be installed in the inside of the flow distribution seat 301. After being installed into the inside of the flow distribution seat 301, the input end of the gas cylinder 303 is in communication with the input end of the electromagnetic air valve 302. The fixed screw rod 304 is rotatably connected with the inside of the gas cylinder 303, and the other end of the fixed screw rod 304 is threadedly connected with the inside of the flow distribution seat 301.

[0076] The inside flow channel of the flow distribution seat 301 is designed as a symmetrical structure, which ensures that the gas released by the gas cylinder 303 is uniformly distributed to the multiple chambers of the inflation air bag 403 after passing through the electromagnetic air valve 302, avoids the difference in inflation speed of the chambers caused by uneven flow channel resistance, and improves the consistency of the inflation air bag 403 in the inflation form.

[0077] The electromagnetic air valve 302 serves as a "switch" between the gas cylinder 303 and the inflation air bag 403. The electromagnetic air valve 302 is controlled to open and close through an electromagnetic signal, realizes the precise timing and flow regulation of gas release, supports the remote command of the ground station or the automatic inflation of the unmanned aerial vehicle body 1 after identifying falling into water through the camera, and does not need the close operation of the rescue personnel, avoids the difficulty in manual intervention caused by turbulent water flow and long distance from the shore, and is especially suitable for rescue in dangerous water areas.

[0078] The gas cylinder 303 stores compressed gas to provide inflation power for the inflation air bag 403. The capacity of the gas cylinder 303 is designed according to the volume of the inflation air bag 403. The whole gas cylinder 303 adopts a carbon fiber winding composite gas cylinder, which is lighter in weight than the traditional steel cylinder, can improve the endurance of the unmanned aerial vehicle body 1,

[0079] At the same time, the gas cylinder 303 and the flow distribution seat 301 are connected in a plug-in manner. The fixed screw rod 304 can be quickly locked and separated from the threadedly connected flow distribution seat 301 by rotating, which is more efficient than the traditional threaded connection of the gas cylinder, and is suitable for quick replacement and supply.

[0080] Please refer toFigures 1 to 6 As shown, the shunt seat 301 is provided with a pressure sensor 3011 and a safety relief valve 3012 at the gas distribution chamber, the pressure sensor 3011 is arranged on the inner wall of the shunt seat 301 and cooperates with the output end of the electromagnetic valve 302, and the safety relief valve 3012 is installed on the top of the shunt seat 301, and when the internal gas pressure of the gas cylinder 303 exceeds the preset threshold, the safety relief valve 3012 can automatically open to release excess gas;

[0081] The pressure sensor 3011 monitors the gas pressure of the inner wall of the shunt seat 301 in real time, and feeds back signals to the control system of the unmanned aerial vehicle body 1. When the pressure reaches the rated working pressure of the inflatable airbag 403, the system immediately closes the electromagnetic valve 302 to stop inflating; if the pressure does not reach the threshold, the gas supply continues;

[0082] When the internal gas pressure of the shunt seat 301 gas distribution chamber is higher than the predetermined pressure, the spring type valve core of the safety relief valve 3012 is automatically opened to release excess gas until the pressure is reduced to the safe range and closed. This passive protection mechanism can avoid damage to the gas cylinder 303, the shunt seat 301 or the inflatable airbag 403 due to overpressure, and fundamentally eliminates the risk of excessive pressure.

[0083] The working principle of the present application is: in the initial state, the inflatable airbag 403 of the lifesaving part 4 is in a folded state and is stored in the inside of the unfolding frame 401, the unfolding plate 402 is connected with the sliding block 406 through the connecting cable 404, the reset spring 407 is in a stretched state, and the rotating wheel 405 guides the connecting cable 404 to reduce friction;

[0084] The high-pressure gas is pre-stored in the gas storage part 3, and the whole is fixed with the unmanned aerial vehicle body 1 through the mounting part 2, and forms a compact modular structure.

[0085] After the unmanned aerial vehicle body 1 flies to the target area, the gas storage part 3 releases high-pressure gas by controlling the internal equipment to fill the inside of the inflatable airbag 403, so that the inflatable airbag 403 increases in volume under the action of gas pressure, and the fixed end of the inflatable airbag 403 and the unfolding frame 401 is a fulcrum, the other end pulls the unfolding plate 402 through the connecting cable 404, and at the same time drives the sliding block 406 to slide along the inside of the unfolding frame 401, further compresses the reset spring 407, and the unfolding plate 402 forms a rigid support after unfolding, and cooperates with the completely inflated inflatable airbag 403 to form a stable lifesaving platform, the inflatable airbag 403 provides buoyancy support for the fallen person, and the unfolding plate 402 can be used as a gripping or leaning structure to improve the safety of rescue.

[0086] The above merely describes the preferred embodiments of the present application, and it should be pointed out that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless specifically described and limited.

Claims

1. A flying rescue device for water rescue, characterized by: The unmanned aerial vehicle body (1) is internally provided with a mounting portion (2) fixedly connected with the unmanned aerial vehicle body (1) through the mounting portion (2), a gas storage portion (3) is arranged in the middle of the mounting portion (2), and lifesaving portions (4) are arranged at the lower ends of the two sides of the mounting portion (2); the lifesaving portions (4) are inflated and expanded through the gas storage portion (3); The lifesaving portions (4) comprise an unfolding frame (401), an unfolding plate (402), an unfolding air bag (403), a connecting cable (404), a rotating wheel (405), a sliding block (406) and a reset spring (407); the unfolding frame (401) is fixedly connected with the mounting portion (2); the unfolding plate (402) is arranged in the interior of the unfolding frame (401); one end of the unfolding air bag (403) is fixedly connected with the unfolding frame (401); the connecting cable (404) is fixedly connected with the unfolding plate (402) after penetrating through the unfolding air bag (403); the sliding block (406) is slidingly arranged in the interior of the unfolding frame (401), and the other end of the connecting cable (404) is fixedly connected with the sliding block (406); A support frame (4031) is arranged at the unfolding air bag (403), and the support frame (4031) is in a rigid annular structure; a connecting hole for stably penetrating the connecting cable (404) is arranged in the interior of the support frame (4031); The unfolding air bag (403) adopts a multi-cavity independent inflation structure; each inflation cavity is connected through an independent air guide hole, and a one-way check valve is arranged in the air guide hole; A guide sliding groove matched with the sliding block (406) is arranged in the interior of the unfolding frame (401), and a wear-resistant ceramic coating is arranged on the surface of the guide sliding groove; The mounting portion (2) comprises a mounting seat (201), a locking block (202) and an elastic locking member (203); the mounting seat (201) is fixedly connected with the upper portion of the unfolding frame (401), and the upper portion of the mounting seat (201) can be inserted into the middle portion of the unmanned aerial vehicle body (1); the locking block (202) is slidingly arranged in the interior of the mounting seat (201), and the locking block (202) can be inserted into the interior of the unmanned aerial vehicle body (1); and the elastic locking member (203) is arranged between the locking block (202) and the mounting seat (201).

2. A flying rescue device for water rescue according to claim 1, characterized in that The unmanned aerial vehicle body (1) adopts an integrated waterproof sealing structure, and a high-definition wide-angle camera and an infrared thermal imager are integrated on the head of the unmanned aerial vehicle body (1).

3. A flying rescue device for water rescue according to claim 1, characterized in that: An audible and visual device (4021) is fixedly arranged at the unfolding plate (402); the audible and visual device (4021) comprises an LED warning light and a waterproof buzzer.

4. A flying rescue system for water rescue according to claim 1, characterized in that: A reflective coating is arranged on the surface of the unfolding air bag (403).

5. A flying rescue system according to claim 1, characterized in that: The gas storage part (3) comprises a shunt seat (301), an electromagnetic air valve (302), a gas storage cylinder (303) and a fixed screw rod (304), the shunt seat (301) is fixedly connected with the lower end of the mounting seat (201), the electromagnetic air valve (302) is fixedly connected with the inside of the shunt seat (301), the output end of the electromagnetic air valve (302) is communicated with the gas distribution warehouse inside the shunt seat (301), the gas storage cylinder (303) can be installed in the inside of the shunt seat (301), and after the gas storage cylinder (303) is installed into the inside of the shunt seat (301), the input end of the gas storage cylinder (303) is communicated with the input end of the electromagnetic air valve (302), the fixed screw rod (304) is rotatably connected with the inside of the gas storage cylinder (303), and the other end of the fixed screw rod (304) is screwedly connected with the inside of the shunt seat (301).

6. A flying rescue system according to claim 5, characterized in that: The shunt seat (301) is provided with a pressure sensor (3011) and a safety pressure relief valve (3012) at the gas distribution warehouse, the pressure sensor (3011) is arranged on the inner wall of the shunt seat (301) and cooperates with the output end of the electromagnetic air valve (302), the safety pressure relief valve (3012) is installed on the top of the shunt seat (301), and when the internal gas pressure of the gas storage cylinder (303) exceeds the preset threshold value, the safety pressure relief valve (3012) can automatically open to release the excess gas.

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