Water rescue unmanned aerial vehicle

Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a water rescue unmanned aerial vehicle. Comprising an unmanned aerial vehicle body; the life buoy putting mechanism is arranged at the bottom of the unmanned aerial vehicle main body and is used for storing and sequentially putting life buoys; the life buoy putting mechanism comprises an upper mounting cylinder, a lower mounting cylinder, a connecting rod, a mounting ring, a linear module and a placing rod; the handle putting mechanism is arranged in a storage bin at the bottom of the life buoy putting mechanism and is used for storing and putting handles; and the net bag putting mechanism is arranged in a putting bin at the bottom of the storage bin and is used for storing and putting a net bag. By providing multiple rescue modes, a drowning person can be quickly and safely rescued from water, and the rescue success rate is greatly increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a water rescue UAV. Background Art

[0002] Drowning remains a significant public safety concern worldwide, particularly in areas with frequent water activities. It is a leading cause of death worldwide and poses a threat to people of all ages. Drowning incidents often occur quickly, and often without skilled rescue personnel. Traditional water rescue methods rely on the rapid response of lifeguards or rescue teams. However, even with the presence of trained lifeguards, they may not be able to reach the scene of an accident in a timely manner due to obstructed vision, distance, or unconsciousness of the victim.

[0003] With the rapid development of drone technology in recent years, drones have demonstrated their unique advantages in various fields, especially in search, positioning, and delivery. Their high maneuverability, flexibility, and remote control capabilities give them enormous potential for application in water rescue.

[0004] However, the current methods of using drones for water rescue mainly focus on throwing lifebuoys, but the number of lifebuoys carried by existing water rescue drones at one time is small, and the rescue methods are single. Especially when the drowning person is already unconscious or physically exhausted, how to rescue the drowning person from the water quickly and safely has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to provide a water rescue drone that can quickly and safely rescue drowning people from the water by providing multiple rescue methods, thereby greatly improving the success rate of rescue.

[0006] In order to solve the above technical problems, the present invention provides a water rescue drone, comprising:

[0007] UAV body;

[0008] A lifebuoy delivery mechanism is arranged at the bottom of the drone body and is used to store and sequentially deliver lifebuoys. The lifebuoy delivery mechanism includes: an upper mounting tube, a lower mounting tube, a connecting rod, a mounting ring, a linear module, and a delivery rod. The upper and lower ends of the connecting rod are respectively connected to the upper mounting tube and the lower mounting tube. A plurality of the mounting rings are vertically linearly sleeved on the connecting rod. The delivery rod is circumferentially elastically hinged to the upper mounting tube, the plurality of the mounting rings, and the driving end of the linear module. The linear module is vertically mounted in the lower mounting tube.

[0009] A handle delivery mechanism is arranged in the storage compartment at the bottom of the lifebuoy delivery mechanism and is used to store and deliver the handle;

[0010] The net bag delivery mechanism is arranged in the delivery bin at the bottom of the storage bin and is used for storing and delivering the net bags.

[0011] Preferably, the drone body is a multi-rotor aircraft, and the bottom of the drone body also includes a landing gear, and the landing gear also includes a protective net tube that can be detachably mounted to the bottom of the drone body, and the protective net tube cover is arranged on the outside of the lifebuoy delivery mechanism, the handle delivery mechanism and the net bag delivery mechanism.

[0012] Preferably, the linear module is an electric push rod, and a connecting block is provided at the driving end of the electric push rod, through which the placement rod is circumferentially elastically hinged.

[0013] Preferably, the elastic hinge structure is a torsion spring hinge, which includes hinge plate one, hinge plate two, a rotating shaft and a torsion spring; hinge plate one and hinge plate two are rotatably connected via the rotating shaft, the torsion spring is sleeved on the rotating shaft, and the extensions at both ends of the torsion spring are respectively in contact with hinge plate one and hinge plate two.

[0014] Preferably, the inner end of the placement rod on the upper mounting tube and the mounting ring also includes an abutment wheel, and the outer end of the placement rod on each layer also includes an arc groove, which is used to limit the placement of the lifebuoy.

[0015] Preferably, the handle delivery mechanism includes: a retractable motor, a rewinding shaft, a delivery rope, a delivery port and a handle; the retractable motor is installed in the storage bin, the output end of the retractable motor is provided with the rewinding shaft, the rewinding shaft is rotatably installed in the storage bin through a bearing, a number of delivery ropes are wound on the rewinding shaft at intervals, the other ends of the several delivery ropes pass through the delivery port and are connected to the handle, and the handle is hung outside the storage bin, and the delivery port is opened around the storage bin.

[0016] Preferably, the net bag delivery mechanism includes: a delivery motor, a sling and a net bag; the delivery bin is rotatably mounted on the storage bin via a rotating shaft, the delivery motor is mounted on the storage bin, and the output end of the delivery motor drives the rotating shaft to rotate, so as to enable the delivery bin to flip and open and close with the rotating shaft as the rotation center, the net bag is placed in the delivery bin, the tightening end of the net bag is connected to one end of the sling, and the other end of the sling is connected to the bottom of the storage bin.

[0017] Preferably, the net bag includes: a net body, a threading ring, a buoy, a soft ball and a tightening rope; a plurality of the threading rings are circumferentially arranged on the mesh end of the net body, the tightening rope is inserted into the threading ring, a plurality of the buoys are spaced apart on the tightening rope, and it is ensured that the buoy can pass through the threading ring, two of the soft balls are respectively clamped in two adjacent threading rings, and the soft balls are arranged on the tightening rope, and the two ends of the tightening rope are respectively connected to the sling, and the net bag always remains in an open state when it is not loaded.

[0018] Preferably, the winding shaft further includes a plurality of fixing holes spaced apart in the axial direction for inserting the fixed end of the delivery rope, and the fixed end of the delivery rope further includes an integrally formed weight-limiting knot, which is limited outside the fixing hole by the weight-limiting knot, thereby fixing the delivery rope and the winding shaft; at the same time, two handles are respectively installed on the tightening rope outside the net bag and inside the net bag.

[0019] Preferably, it also includes:

[0020] powertrain, including the battery pack;

[0021] Flight control system, including main control chip, gyroscope, lidar, millimeter-wave radar, far-infrared sensor and Beidou / GPS positioning module;

[0022] Image transmission system, including a high-definition camera with a pan / tilt system and an image and text transmission module;

[0023] Lighting and broadcasting equipment, including searchlights and loudspeakers.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention uses an electric push rod to move and to be linked with the placement rods on each layer, and can achieve the purpose of releasing multiple lifebuoys in sequence according to the number of required rescue targets or other actual conditions, so as to ensure that the lifebuoys can be dropped to the rescue targets in time; and the present invention also designs a rescue handle for dropping rescue to cooperate with the lifebuoy for rescue. When the drowning person becomes confused or physically exhausted, first, by grasping the handle at the lower end of the dropping rope, the drone is appropriately lifted into the air and towed to float on the water surface, and then the lifebuoy is dropped for rescue when the target is conscious or physically recovered; and further, the present invention also designs a dropable net bag floating on the water surface, and waits for the target to pass through the lifebuoy or swim into the net bag on its own. At this time, the drone is lifted into the air and uses the target's own weight to tighten the net bag mouth, so as to safely net the target and lift it upward, and then return safely. The present invention can achieve the purpose of multiple rescue methods, thereby improving the success rate of rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a stereoscopic diagram of a water rescue drone provided by the present invention.

[0027] Figure 2 The figure is a top view of a water rescue drone provided by the present invention.

[0028] Figure 3 It is a cross-sectional view of a water rescue drone provided by the present invention.

[0029] Figure 4 This is a structural diagram of the water rescue drone provided by the present invention with the protective net tube removed.

[0030] Figure 5 It is a structural diagram of the lifebuoy launching mechanism provided by the present invention.

[0031] Figure 6 It is a structural diagram of the bottom layer placement rod in the lifebuoy launching mechanism provided by the present invention.

[0032] Figure 7 It is a structural diagram of the torsion spring hinge in the lifebuoy launching mechanism provided by the present invention.

[0033] Figure 8 It is a structural diagram of the handle delivery mechanism provided by the present invention.

[0034] Figure 9 It is a structural diagram of the rotating shaft in the handle delivery mechanism provided by the present invention.

[0035] Figure 10 It is a cross-sectional view of the net bag putting mechanism provided by the present invention.

[0036] Figure 11 It is a structural diagram of the net bag in the net bag delivery mechanism provided by the present invention.

[0037] In the figure: 1-UAV body, 11-landing gear, 12-protective net tube, 2-lifebuoy delivery mechanism, 21-upper mounting tube, 22-lower mounting tube, 23-connecting rod, 24-mounting ring, 25-linear module, 251-connecting block, 26-placement rod, 261-abutment wheel, 262-arc groove, 27-torsion spring hinge, 271-hinge plate 1, 272-hinge plate 2, 273-rotating shaft, 274-torsion spring, 3-handle delivery mechanism, 31 -Storage compartment, 32-Retractable motor, 33-Reeling shaft, 331-Fixing hole, 332-Weight limit knot, 34-Delivery rope, 35-Delivery port, 36-Handle, 37-Bearing, 4-Net bag delivery mechanism, 41-Delivery compartment, 42-Sling, 43-Net bag, 431-Net body, 432-Threading ring, 433-Buoy, 434-Soft ball, 435-Tightening rope, 44-Handle, 5-Searchlight, 6-HD camera, 7-Loudspeaker. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and not to exact scale, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0039] Example 1

[0040] like Figures 1 to 9 As shown, an embodiment of the present invention specifically provides a light-class water rescue drone, comprising:

[0041] UAV body 1;

[0042] The lifebuoy delivery mechanism 2 is arranged at the bottom of the drone body 1 and is used to store and deliver the lifebuoys in sequence;

[0043] The handle delivery mechanism 3 is arranged in the storage compartment 31 at the bottom of the lifebuoy delivery mechanism 2 and is used to store and deliver the handle 36;

[0044] The net bag delivery mechanism 4 is arranged in the delivery bin 41 at the bottom of the storage bin 31 and is used for storing and delivering the net bag 43 .

[0045] The drone body 1 is a multi-rotor aircraft, and the specific structure of the multi-rotor aircraft is as follows: the bottom of the drone body 1 also includes a landing gear 11 made of carbon fiber material, and the landing gear 11 also includes a protective net tube 12 that can be detachably mounted to the bottom of the drone body 1. The protective net tube 12 is covered on the outside of the lifebuoy launching mechanism 2, the handle launching mechanism 3 and the net bag launching mechanism 4, and the surface holes of the protective net tube 12 are designed to reduce wind resistance.

[0046] It should be further explained that the drone body 1 in this embodiment of the present invention is composed of a carbon fiber fuselage and multiple arms. Coaxial motors are mounted above the outer ends of the arms, each with a propeller at its upper and lower output ends. The propellers also include blade shields. PWM speed regulators matching the coaxial motors are mounted below the coaxial motors at the outer ends of the arms. The drone in this embodiment of the present invention is powered by a battery pack.

[0047] The lifebuoy launching mechanism 2 includes: an upper mounting tube 21, a lower mounting tube 22, a connecting rod 23, a mounting ring 24, a linear module 25 and a placement rod 26; the upper and lower ends of the connecting rod 23 are respectively connected to the upper mounting tube 21 and the lower mounting tube 22, and a plurality of mounting rings 24 are vertically linearly sleeved on the connecting rod 23. The upper mounting tube 21 and the plurality of mounting rings 24 are circumferentially elastically hinged with the placement rod 26. At the same time, the driving end of the linear module 25 is circumferentially elastically hinged with the placement rod 26, and the linear module 25 is vertically installed in the lower mounting tube 22.

[0048] It needs to be further explained that in the embodiment of the present invention, at least three lifebuoys are stored, that is, the number of layers of placement rods 26 is at least three, and the material of the placement rods 26 is made of carbon fiber, titanium alloy or other light-weight and high-hardness materials.

[0049] The linear module 25 is an electric push rod, and the driving end of the electric push rod is provided with a connecting block 251. The connecting block 251 is hinged with a placement rod 26 on all four sides through a torsion spring hinge 27 (when the placement rod 26 is in a flat state, the angle between the hinge plate 1 271 and the hinge plate 272 in the torsion spring hinge 27 is 180°, and when the placement rod 26 is installed on the upper mounting tube 21 and several mounting rings 24 and is in a flat state, the angle between the hinge plate 1 271 and the hinge plate 272 in the torsion spring hinge 27 used is 90°).

[0050] The elastic hinged structure is a torsion spring hinge 27, which includes a hinge plate 1 271, a hinge plate 272, a rotating shaft 273 and a torsion spring 274; the hinge plate 1 271 and the hinge plate 2 272 are rotatably connected via the rotating shaft 273, and a torsion spring 274 is sleeved on the rotating shaft 273, and the extensions at both ends of the torsion spring 274 are respectively in contact with the hinge plate 1 271 and the hinge plate 2 272; by designing the torsion spring hinge 27 structure, the placement rod 26 can be kept in a flat state when no force is applied, and when a force is applied, the placement rod 26 can be driven to deflect with the rotating shaft 273 as the rotation center.

[0051] The inner end of the placement rod 26 on the upper mounting tube 21 and the mounting ring 24 also includes an abutment wheel 261, and the outer end of each layer of the placement rod 26 also includes an arc groove 262. The arc groove 262 is used to limit the placement of the lifebuoy. The shape of the arc groove 262 matches the surface curvature of the lifebuoy to achieve a limiting effect on the lifebuoy when it is stored.

[0052] When the above-mentioned lifebuoy launching mechanism 2 is in use, the electric push rod is controlled to move, and the driving end of the electric push rod extends upward, pushing the lifebuoy on the bottom layer of placing rod 26 abutting against the top of the lower mounting tube 22 to move upward synchronously until the lifebuoy abuts against the bottom of the second layer of placing rod 26 above (that is, counting starts from bottom to top) to produce interference movement. At this time, the outer end of the first layer of placing rod cannot move upward synchronously with the inner end of the first layer of placing rod due to movement obstruction interference, and the electric push rod is still extending upward at this time, which will drive the first layer of placing rod to deflect inward and gradually retract. At this time, the lifebuoy stored on the bottom layer of placing rod 26 will automatically fall to the water surface for the drowning person to save himself; then, according to the number of lifebuoys launched, it can be decided whether the electric push rod continues to extend. If it continues to extend, the first layer of placing rod will gradually retract to a vertical state, which will drive the placing rod 26 retracted in the vertical state to move upward synchronously, and the placing rod 26 in the retracted state will be used to apply pressure. The force applied to the contact wheel 261 overcomes the elastic force of the torsion spring hinge 27, so that the second layer of placement rods 26 in a flat state deflects inward with the rotating shaft 273 of the torsion spring hinge 27 as the rotation center. At this time, the life buoys stored on the second layer of placement rods 26 will automatically fall to the water surface. Similarly, if the electric push rod is continued to be controlled, the placement rods 26 in the folded state will pass through the internal channel of the mounting ring 24, and the life buoys on the placement rods 26 of each layer above the second layer can be placed in turn. When the electric push rod shortens downward, the force applied to each layer of the abutment wheel 261 disappears in sequence. Due to the elasticity of the torsion spring hinge 27, the placement rods 26 of each layer automatically return to a flat state in sequence. When the upper end of the placement rod 26 of the first layer in the folded state leaves the internal channel of the mounting ring 24 and moves below it, the placement rod 26 of the first layer returns to a flat state due to the elasticity of the torsion spring hinge 27. By using a single electric push rod and linking it with the placement rods 26 of each layer, the purpose of sequentially releasing multiple lifebuoys can be achieved.

[0053] The handle delivery mechanism 3 comprises a retractable discharge motor 32, a reel 33, a delivery rope 34, a delivery port 35, and a handle 36. The retractable discharge motor 32 is mounted within the storage compartment 31 and is a servo motor. The reel 33 is mounted at the output end of the retractable discharge motor 32 and is rotatably mounted within the storage compartment 31 via a bearing 37. Several delivery ropes 34 are wound around the reel 33 at intervals. The other ends of the delivery ropes 34 pass through the delivery port 35 and connect to the handle 36, which is suspended from the outside of the storage compartment 31. The delivery port 35 is formed around the storage compartment 31, so that the handle 36 is suspended within the delivery port 35. Because the internal passageway of the delivery port 35 is similar in shape to the handle 36, being narrow at the top and wide at the bottom, when the handle 36 is pulled upward by the retractable discharge motor 32 via the delivery rope 34, it becomes stuck due to the narrowing of the upward passageway, preventing the handle 36 from passing through and coming to a stop. When the handle 36 needs to be released, the retracting motor 32 rotates and the reel 33 releases the release rope 34. Since the handle 36 is made of heavy materials such as stainless steel, the handle 36 is pulled vertically toward the water surface by its own weight.

[0054] When the above-mentioned handle launching mechanism 3 is used, the retracting and retracting motor 32 can be controlled to work, driving the reel 33 to rotate forward and reverse, so as to launch or reel in the launching rope 34 wound on the reel 33. When launching, due to the deadweight of the handle 36, the handle 36 can be launched next to the person who falls into the water, so that the person who falls into the water can hold the handle 36 with both hands, and then control the launching rope 34 to reel in, so as to lift the person who falls into the water to the surface and achieve the purpose of self-rescue.

[0055] In a preferred embodiment of the present invention, four circumferentially defined delivery ports 35 provide four delivery ropes 34. These are made of nylon, one end of which is tied to a handle 36 and the other to a designated hole in the reel 33. Four holes are formed axially along the surface of the reel 33, allowing for the attachment of the four delivery ropes 34. The handle 36 is made of stainless steel or another heavyweight material, coated with a thick layer of elastic rubber to cushion impacts. The entire handle 36 has a teardrop-like shape, without sharp corners.

[0056] In a preferred embodiment of the present invention, the reel 33 includes a plurality of fixed holes 331 spaced along the axial direction for inserting the fixed end of the release rope 34. The fixed end of the release rope 34 also includes an integrally formed weight-limiting knot 332. The weight-limiting knot 332 is positioned outside the fixed hole 331 to secure the release rope 34 to the reel 33. Due to the design of the weight-limiting knot 332, when the load generated by the handle 36 held by a person in the water exceeds the load limit of the weight-limiting knot 332, the weight-limiting knot 332 automatically breaks away, and the release rope 34 connected to the weight-limiting knot 332 falls to the surface. In other words, when a person in the water grasps the handle 36 at the lower end of the tightening rope 435 and obtains the lifebuoy, they simply float on the water, awaiting the arrival of a rescue boat, but are reluctant to release the handle 36. However, the drone has limited energy. When the power of the drone reaches its limit and it must return home, otherwise there is a risk of crashing, the drone will take off or adjust its flight attitude angle appropriately so that when the force exerted by the person falling into the water on the weight limit knot 332 is greater than the load limit, the release rope 34 will start the rope breaking procedure to ensure the safe return of the drone.

[0057] Example 2

[0058] like Figures 1 to 11 As shown, the embodiment of the present invention further provides a heavy-load UAV water rescue UAV, which, based on the above embodiment 1, also includes:

[0059] The net bag launching mechanism 4 includes: a launching motor, a sling 42 and a net bag 43; the launching bin 41 is rotatably installed on the storage bin 31 through a rotating shaft, the launching motor is installed on the storage bin 31, and the output end of the launching motor drives the rotating shaft to rotate so as to realize the flipping and opening and closing of the launching bin 41 with the rotating shaft as the rotation center. A net bag 43 is placed in the launching bin 41, and the tightening rope 435 end of the net bag 43 is connected to one end of the sling 42, and the other end of the sling 42 is connected to the bottom of the storage bin 31.

[0060] When the above-mentioned net bag launching mechanism 4 is in use, the launching motor can be controlled to work, and the launching bin 41 can be driven to deflect by the rotating shaft to separate the launching bin 41 from the bottom of the storage bin 31, so that the sling 42 and the net bag 43 stored inside the launching bin 41 fall together until the net bag 43 falls and floats on the water surface. At this time, the bag end of the net bag 43 is in an open state, which allows the person who falls into the water to put his body into the net bag 43, and then control the drone to climb upward. Due to the weight of the person who falls into the water, a force will be applied to the soft ball 434, so that the soft ball 434 is squeezed and becomes smaller under the action of the threading ring 432, until it moves downward and breaks away from the threading ring 432. At this time, the bag end of the net bag 43 quickly completes the tightening action.

[0061] It needs to be further explained that a high-definition camera 6 is provided at the bottom of the storage bin 31, and the sling 42 is made of high-strength nylon rope that can bear weight, one end of which is effectively connected and fixed to the hanging ring, and the other end is effectively connected and fixed to the net bag 43, and the net bag 43 is a net woven with high-strength nylon rope, and the net bag 43 is shaped like a pocket.

[0062] The net bag 43 includes: a net body 431, a threading ring 432, a buoy 433, a soft ball 434 and a tightening rope 435; a plurality of threading rings 432 are arranged circumferentially at the mesh end of the net body 431, and a tightening rope 435 is inserted into the threading ring 432. A plurality of buoys 433 are arranged at intervals on the tightening rope 435, and it is ensured that the buoy 433 can pass through the threading ring 432. Two soft balls 434 are respectively clamped in two adjacent threading rings 432, and the soft balls 434 are arranged on the tightening rope 435. The two ends of the tightening rope 435 are respectively connected to the sling 42. The net bag 43 always remains in an open state when it is not loaded.

[0063] At the same time, two handles 44 are attached to the tightening rope 435 on the outside of the net bag 43 and inside the net bag 43, respectively. When the sling 42 with the net bag 43 is lowered, the opening of the net bag 43 floats on the water surface due to the buoys 433 around the opening, and becomes open. The person in the water can then grab the handles 44 on the tightening rope 435 on the outside of the net bag 43 to enter the net bag 43, then switch their hands to the handles 44 inside the net bag 43 to maintain a better standing posture. As the drone ascends and raises the sling 42 to a certain height, the weight of the person in the water causes the soft ball 434 stuck in the threading ring 432 to be squeezed and reduced until the soft ball 434 is released downward from the threading ring 432. At this point, the opening of the net bag 43 quickly tightens, and the person is safely inside the net bag 43. The drone continues its ascent and then safely returns home.

[0064] Example 3

[0065] Based on the above-mentioned embodiment 1 and embodiment 2, the embodiment of the present invention further includes:

[0066] The flight control system consists of a main control chip, gyroscope, lidar, millimeter-wave radar, far-infrared sensor, Beidou / GPS positioning module, etc. The main control chip and gyroscope are used to control and adjust the flight attitude, the lidar and millimeter-wave radar are used for obstacle avoidance during flight, the far-infrared sensor is used for night search and rescue and heat source identification, and the Beidou / GPS positioning module provides positioning and navigation information.

[0067] The image transmission system consists of a high-definition camera 6 with a pan / tilt system and an image / text transmission module. The high-definition camera 6 tracks and locks onto targets, capturing real-time images. The image / text transmission module then transmits the video to a remote command platform. The high-definition camera 6 can be located at the bottom of the arm and the bottom of the delivery bin 41.

[0068] The lighting and broadcasting device is composed of a searchlight 5 and a loudspeaker 7. The searchlight 5 is used for nighttime lighting, and the loudspeaker 7 is used for emergency broadcasting. The searchlight 5 and the loudspeaker 7 can be specifically arranged at the bottom of the arm.

[0069] It also includes the following usage process:

[0070] When a person falls into the water, the remote control platform issues a takeoff command, and the drone instantly launches into the air. Then, you can choose between remote control mode or autonomous mode. Once airborne, the drone can autonomously search for the person or expand its search range in the direction the person may be.

[0071] Light UAVs:

[0072] Once the target is locked, it will quickly fly over the target, lower its altitude to a few meters above the target, play a notice on the loudspeaker 7 to remind the target to pay attention, and then drop a lifebuoy.

[0073] If the target is found to be in a state of confusion, with hands flailing and in a critical condition, and the impact of the lifebuoy being dropped may cause danger, the drone will immediately and autonomously drop all the life-saving handles 36 in the hope that the target will grab it. At this time, the drone can autonomously cooperate and adjust its flying posture to help the target grab. When the target grabs the life-saving handles 36, the drone will take off in time to help the target float to the surface. After the target regains consciousness, the drone will immediately drop the lifebuoy.

[0074] When the target grabs the handle 36 on the release rope 34 and the lifebuoy, but still does not release the handle 36 on the tightening rope 435, there is a risk of the drone crashing. After the drone warns the target several times through the loudspeaker 7 but to no avail, the drone will start the rope-breaking program, automatically cut off the release rope 34 through the weight-limiting knot 332, and then automatically return to the base.

[0075] Heavy-load drone:

[0076] Upon receiving the command, the drone immediately takes off and searches for the drowning person. Once the target is locked, it quickly flies over the drowning person, descends above the drowning person, and drops a life-saving sling 42 and a net bag 43. The net bag 43 is used to help the drowning person enter the net bag 43 on their own. The drone uses a sling 45 to lift the net bag 43 out of the water, and then randomly returns to the ship or lands. Heavy-load drones can also drop a lifebuoy and a handle 36.

[0077] In summary, the drone of the present invention utilizes an onboard search system to quickly locate a drowning target and, traveling at high speed, reaches the target's location. Powered by a high-definition camera 6 and various sensor systems, it precisely drops a lifebuoy from a few meters above the water's surface. The drowning person then simply floats on the lifebuoy while awaiting rescue. The entire process takes only minutes, with high precision and efficiency. This water rescue drone, capable of dropping a lifebuoy, handle 36, and net bag 43, can also be used in emergencies such as sudden flash floods that isolate people from shore, people who accidentally fall into the water in urban and rural areas, and those swept away by currents while swimming, as well as in emergencies at sea.

[0078] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A water rescue drone, characterized in that: include: UAV body (1); A lifebuoy delivery mechanism (2) is arranged at the bottom of the drone body (1) and is used for storing and sequentially delivering lifebuoys; the lifebuoy delivery mechanism (2) comprises: an upper mounting cylinder (21), a lower mounting cylinder (22), a connecting rod (23), a mounting ring (24), a linear module (25) and a placement rod (26); the upper and lower ends of the connecting rod (23) are respectively connected to the upper mounting cylinder (21) and the lower mounting cylinder (22); a plurality of the mounting rings (24) are vertically linearly sleeved on the connecting rod (23); the placement rod (26) is circumferentially elastically hinged on the upper mounting cylinder (21) and the plurality of the mounting rings (24), as well as the driving end of the linear module (25); the linear module (25) is vertically installed in the lower mounting cylinder (22); A handle delivery mechanism (3) is arranged in a storage compartment (31) at the bottom of the lifebuoy delivery mechanism (2) and is used for storing and delivering the handle (36); The net bag delivery mechanism (4) is arranged in the delivery bin (41) at the bottom of the storage bin (31) and is used for storing and delivering the net bag (43).

2. The water rescue drone according to claim 1, characterized in that: The drone body (1) is a multi-rotor aircraft. The bottom of the drone body (1) further includes a landing gear (11). The landing gear (11) further includes a protective net tube (12) that can be detachably mounted to the bottom of the drone body (1). The protective net tube (12) is covered on the outside of the lifebuoy delivery mechanism (2), the handle delivery mechanism (3), and the net bag delivery mechanism (4).

3. The water rescue drone according to claim 1, characterized in that: The linear module (25) is an electric push rod, and a connecting block (251) is provided at the driving end of the electric push rod. The placement rod (26) is circumferentially elastically hinged via the connecting block (251).

4. A water rescue drone according to claim 1 or 3, characterized in that: The elastic hinge structure is a torsion spring hinge (27), and the torsion spring hinge (27) comprises a hinge plate 1 (271), a hinge plate 2 (272), a rotating shaft (273) and a torsion spring (274); the hinge plate 1 (271) and the hinge plate 2 (272) are rotatably connected via the rotating shaft (273), the torsion spring (274) is sleeved on the rotating shaft (273), and the extension parts at both ends of the torsion spring (274) are respectively in contact with the hinge plate 1 (271) and the hinge plate 2 (272).

5. The water rescue drone according to claim 1, characterized in that: The inner end of the placement rod (26) on the upper mounting tube (21) and the mounting ring (24) further includes an abutment wheel (261), and the outer end of each layer of the placement rod (26) further includes an arc groove (262) provided thereon, and the arc groove (262) is used for limiting the placement of the lifebuoy.

6. The water rescue drone according to claim 1, characterized in that: The handle delivery mechanism (3) comprises: a retractable discharge motor (32), a reel (33), a delivery rope (34), a delivery port (35) and a handle (36); the retractable discharge motor (32) is installed in the storage bin (31); the output end of the retractable discharge motor (32) is provided with the reel (33); the reel (33) is rotatably installed in the storage bin (31) via a bearing (37); a plurality of delivery ropes (34) are reeled on the reel (33) at intervals; the other ends of the plurality of delivery ropes (34) pass through the delivery port (35) and are connected to the handle (36), so that the handle (36) is suspended outside the storage bin (31); and the delivery port (35) is opened around the storage bin (31).

7. The water rescue drone according to claim 6, characterized in that: The net bag delivery mechanism (4) comprises: a delivery motor, a sling (42) and a net bag (43); the delivery bin (41) is rotatably mounted on the storage bin (31) via a rotating shaft, the delivery motor is mounted on the storage bin (31), the output end of the delivery motor drives the rotating shaft to rotate, so as to enable the delivery bin (41) to be flipped and opened and closed with the rotating shaft as the rotation center, the net bag (43) is placed in the delivery bin (41), the tightening end of the net bag (43) is connected to one end of the sling (42), and the other end of the sling (42) is connected to the bottom of the storage bin (31).

8. The water rescue drone according to claim 7, characterized in that: The net bag (43) comprises: a net body (431), a threading ring (432), a buoy (433), a soft ball (434) and a tightening rope (435); a plurality of threading rings (432) are arranged circumferentially at the net mouth end of the net body (431), the tightening rope (435) is inserted into the threading ring (432), a plurality of buoys (433) are arranged on the tightening rope (435) at intervals, and it is ensured that the buoy (433) can pass through the threading ring (432), two soft balls (434) are respectively clamped in two adjacent threading rings (432), and the soft balls (434) are arranged on the tightening rope (435), and the two ends of the tightening rope (435) are respectively connected to the sling (42), and the net bag (43) always remains in an open state when not bearing any load.

9. The water rescue drone according to claim 8, characterized in that: The reel (33) further comprises a plurality of fixing holes (331) spaced apart in the axial direction for inserting the fixed end of the delivery rope (34), and the fixed end of the delivery rope (34) further comprises an integrally formed weight-limiting knot (332), which is limited outside the fixing hole (331) by the weight-limiting knot (332), thereby achieving fixation between the delivery rope (34) and the reel (33); and at the same time, two handles (44) are respectively installed on the tightening rope (435) outside the net bag (43) and inside the net bag (43).

10. A water rescue drone according to any one of claims 1 to 9, characterized in that: Also includes: powertrain, including the battery pack; Flight control system, including main control chip, gyroscope, lidar, millimeter-wave radar, far-infrared sensor and Beidou / GPS positioning module; An image transmission system comprising a high-definition camera (6) with a pan / tilt system and an image / text transmission module; A lighting and broadcasting device comprises a searchlight (5) and a loudspeaker (7).

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