Unmanned aerial vehicle for convenient delivery of rescue supplies

Abstract

The utility model provides a kind of unmanned aerial vehicle of rescue material conveying is facilitated, it is related to unmanned aerial vehicle technical field.Unmanned aerial vehicle of rescue material conveying is facilitated include: unmanned aerial vehicle, reel, hang box, trigger mechanism and release mechanism, reel is installed on unmanned aerial vehicle, the rope cable one end of reel is wound on reel, the other end of rope cable is connected hang box, trigger mechanism is set on hang box, for when generating trigger signal when hang box contacts ground, release mechanism is set on hang box and is connected with rope cable, for receiving trigger signal and action, to make rope cable and hang box separate.The unmanned aerial vehicle of the application can quickly reel back rope cable and return, only need to hang box is lowered to touch ground, subsequent unhooking action is automatically completed, significantly improves the delivery reliability.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV that facilitates the delivery of relief supplies. Background Technology

[0002] In current rescue operations in complex terrains such as mountains and canyons, drones have become an important tool for delivering life support supplies, medical supplies, and critical communication equipment due to their superior maneuverability and rapid response capabilities. Currently, typical supply delivery methods rely on drones hovering over the target area and then lowering suspended supply containers to the ground using a winch or simple release device.

[0003] However, the above process often requires pilots to possess advanced operational skills, manually controlling the drone to hover precisely in complex airflow environments, judging the ground contact status of the supplies, and then remotely triggering the release mechanism to separate the cable from the supply box. The entire process is not only highly dependent on the operator, but also presents challenges to the reliability of real-time remote control in areas like canyons where signal coverage may be obstructed. Furthermore, the drone must be exposed to unstable airspace for extended periods to complete this process, increasing flight risks and energy consumption. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drone that facilitates the delivery of relief supplies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A drone for facilitating the delivery of relief supplies includes a drone, a rope reel, a gondola, a triggering mechanism, and a release mechanism. The rope reel is mounted on the drone, with one end of the rope reel wound around it and the other end connected to the gondola. The triggering mechanism is located on the gondola and generates a trigger signal when the gondola touches the ground. The release mechanism is located on the gondola and connected to the rope, and receives the trigger signal and actuates to separate the rope from the gondola.

[0006] Preferably, the lower sides of the drone are equipped with clamping and buffering mechanisms, which include rollers and shock absorbers. The rollers are used to abut against the side walls of the gondola to provide cushioning protection.

[0007] Preferably, the rollers are mounted on both sides of the lower part of the UAV via the shock absorbers.

[0008] Preferably, the triggering mechanism includes a trigger rod, a spring, and a pressure plate. The pressure plate is equipped with a pressure sensor. When the hoisting box is grounded, the pressure plate is compressed, causing the spring to compress. The pressure sensor is then triggered and sends a signal as the trigger signal.

[0009] Preferably, the trigger rod is connected to the pressure plate, the spring is sleeved on the trigger rod, and the two ends of the spring abut against the upper surface of the pressure plate and the lower surface of the hoisting box, respectively.

[0010] Preferably, the release mechanism includes a hook, a rotating shaft, and a servo motor. The hook is fixedly mounted on one end of the rotating shaft, and one end of the rotating shaft is driven and connected to the servo motor. The servo motor is mounted on the hoisting box and is used to receive the trigger signal and drive the servo motor to rotate, so that the hook rotates to release the cable.

[0011] Preferably, the swivel hook is a three-quarter ring structure with a notch, and the width of the notch in the swivel hook is greater than the diameter of the rope.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When performing an airdrop mission, the drone flies over the target area, and the pilot or autopilot system controls the rope reel to release the rope, and the gondola descends accordingly. The moment the bottom of the gondola touches the ground, the triggering mechanism is activated by the mechanical action of the ground and immediately generates a trigger signal in the form of an electrical signal. This trigger signal is immediately sent to the release mechanism on the gondola through the built-in wire or wireless transmission module. After receiving the signal, the controller of the release mechanism drives its mechanical parts to produce specific actions (such as unlocking, rotating, or disengaging), thereby releasing the constraint on the end of the rope and completely separating the rope from the gondola. Subsequently, the drone can quickly retrieve the cable and return to base. It only needs to lower the gondola to the ground, and the subsequent unhooking action is completed automatically, which significantly improves the reliability of the deployment. Since the trigger judgment comes directly from the physical contact between the gondola and the ground, it avoids the misjudgment that may occur when relying on altimeters, GPS or vision systems in complex terrain. After the gondola is unhooked, the drone does not need to hover for a long time and can leave immediately, reducing the exposure time in dangerous environments (such as strong wind areas in canyons or above disaster-stricken buildings). Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the drone proposed in this utility model for facilitating the delivery of relief supplies; Figure 2 This is a front view of the drone proposed in this utility model for facilitating the delivery of relief supplies. Figure 3 This is a schematic diagram of the locking mechanism in a drone for facilitating the delivery of relief supplies, as proposed in this utility model. Figure 4 for Figure 2 Enlarged view of the structure at point A in the image; Figure 5This is a schematic diagram of the clamping and buffering mechanism in a drone that facilitates the delivery of relief supplies, as proposed in this utility model.

[0014] In the diagram: 1. Drone; 2. Rope winder; 21. Rope; 3. Hoisting box; 4. Clamping and buffering mechanism; 41. Shaft roller; 42. Shock absorber; 5. Release mechanism; 51. Hook; 52. Rotating shaft; 53. Servo motor; 6. Triggering mechanism; 61. Trigger rod; 62. Spring; 63. Pressure plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0020] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0021] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this utility model embodiment provides a drone for convenient delivery of rescue supplies, including a drone 1, a rope reel 2, a gondola 3, a triggering mechanism 6, and a release mechanism 5. The rope reel 2 is mounted on the drone 1, with one end of the rope 21 wound around the rope reel 2 and the other end of the rope 21 connected to the gondola 3. The triggering mechanism 6 is located on the gondola 3 and is used to generate a trigger signal when the gondola 3 touches the ground. The release mechanism 5 is located on the gondola 3 and connected to the rope 21, and is used to receive the trigger signal and act to automatically separate the rope 21 from the gondola 3.

[0022] Specifically, the drone 1 serves as a flight platform, with a rope reel 2 fixedly installed at the center of its bottom. The rope reel 2 includes a motor-driven reel, a reduction mechanism, and an electromagnetic braking system, which can perform precise and controllable winding and unwinding of the rope 21. The rope 21 is preferably made of high-strength, low-elongation, and lightweight composite fiber rope, with one end firmly wound and anchored to the reel of the rope reel 2, and the other end extending downwards. The container 3 is a sealed box used to hold rescue supplies such as medicines, food, and communication equipment.

[0023] In this optional embodiment, when performing an airdrop mission, the drone 1 flies over the target area, and the pilot or autopilot system controls the rope reel 2 to release the rope 21, causing the gondola 3 to descend. The moment the bottom of the gondola 3 touches the ground, the triggering mechanism 6 is activated by the mechanical action of the ground, immediately generating a trigger signal in the form of an electrical signal. This trigger signal is immediately sent to the release mechanism 5, which is also located on the gondola 3, through a built-in wire or wireless transmission module. After receiving the signal, the controller of the release mechanism 5 drives its mechanical parts to perform specific actions (such as unlocking, rotating, or disengaging). This releases the constraint on the end of the cable 21, completely separating the cable 21 from the gondola 3. Subsequently, the drone 1 can quickly retrieve the cable 21 and return to base. The gondola 3 only needs to be lowered to the ground, and the subsequent unhooking action is completed automatically, significantly improving the reliability of the deployment. Since the trigger judgment comes directly from the physical contact between the gondola 3 and the ground, it avoids the misjudgment that may occur in complex terrain when relying on altimeters, GPS or vision systems. After the gondola 3 is unhooked, the drone 1 does not need to hover for a long time and can leave immediately, reducing the exposure time in dangerous environments (such as strong wind areas in canyons or above disaster-stricken buildings).

[0024] Optionally, clamping and buffering mechanisms 4 are installed on both sides of the lower part of the UAV 1. The clamping and buffering mechanisms 4 include shaft rollers 41 and shock absorbers 42. The shaft rollers 41 are used to abut against the side walls of the pod 3 to provide buffer protection.

[0025] In this optional embodiment, a set of clamping and buffering mechanisms 4 are symmetrically installed on the left and right sides of the lower part of the UAV 1 fuselage. When the UAV 1 carries the gondola 3 for transit flights, the operator controls the rope reel 2 to raise the gondola 3 to a certain height so that its side wall is just between the two rollers 41. The rollers 41 gently abut against the walls of the gondola 3 from the left and right sides. When the UAV changes attitude due to acceleration, deceleration or encountering turbulence during flight, the gondola 3 will have a tendency to swing laterally due to inertia. At this time, the rollers 41 on both sides constrain the lateral displacement of the gondola 3 through physical contact. Part of the swing kinetic energy of the gondola 3 is converted into frictional heat energy of the rollers 41 and dissipated, and part is transferred to the shock absorber 42 through the rollers 41. This improves the transportation stability during long-distance or high-speed flight, makes the UAV 1 easier to control, and reduces the risk of crash due to violent shaking of the load. At the same time, it reduces the possibility of twisting and tangling of the rope 21 and protects the materials in the gondola 3 from violent shaking impact.

[0026] Furthermore, the shaft rollers 41 are mounted on both sides of the lower part of the UAV 1 via shock absorbers 42.

[0027] In this optional embodiment, when the gondola 3 swings and squeezes the shaft roller 41, the impact force is transmitted from the shaft roller 41 to the shock absorber 42. The damping medium (such as hydraulic oil) inside the shock absorber 42 generates strong resistance when flowing through the throttle orifice, or the elastic element deforms, thereby effectively absorbing and dissipating most of the impact energy. The force that has become gentler after being buffered and filtered by the shock absorber 42 will finally be transmitted to the main structure of the UAV 1.

[0028] Optionally, the triggering mechanism 6 includes a trigger rod 61, a spring 62, and a pressure plate 63. The pressure plate 63 is equipped with a pressure sensor. When the hoisting box 3 is grounded, the pressure plate 63 is compressed, causing the spring 62 to compress. The pressure sensor is then triggered and sends a signal as a trigger signal.

[0029] In this optional embodiment, the triggering mechanism 6 is composed of three major mechanical components: a trigger rod 61, a spring 62, and a pressure plate 63. The pressure plate 63 is a large pressure-bearing plate located at the bottom of the hoisting box 3, and a thin-film pressure sensor is embedded inside it. The upper end of the trigger rod 61 is rigidly connected to the central area of ​​the pressure plate 63, and the lower end is a free end. The spring 62 is installed between the pressure plate 63 and the inner surface of the bottom plate of the hoisting box 3.

[0030] Working principle and effect derivation: During the descent and flight of the gondola 3, the pressure plate 63 is not subjected to external force and remains in its initial position under the preload of the spring 62. The pressure sensor is in an untriggered state. When the gondola 3 lands, the pressure plate 63 first contacts the ground and begins to bear part of the load caused by the weight of the gondola 3 and the inertia of the fall. This load forces the pressure plate 63 to move upward, thereby compressing the spring 62 located above it. The upward displacement of the pressure plate 63 (even if it is very small) causes the pressure sensor integrated inside to be squeezed. When the sensed pressure value exceeds the preset sensitivity threshold (which can be indirectly adjusted by the preload of the spring 62), the circuit state of the pressure sensor changes, and then a high-level trigger signal is generated and output.

[0031] Furthermore, the trigger rod 61 is connected to the pressure plate 63, and the spring 62 is sleeved on the trigger rod 61. The two ends of the spring 62 abut against the upper surface of the pressure plate 63 and the lower surface of the hanging box 3, respectively.

[0032] In this optional embodiment, the trigger rod 61 is an optical shaft, the upper end of which is firmly connected to the center of the lower surface of the pressure plate 63 by thread or welding. The spring 62 is directly sleeved on the rod body of the trigger rod 61. The bottom plate of the hoisting box 3 has a precision-machined guide hole. The lower section of the trigger rod 61 extends into this guide hole and can slide along the axial direction of the hole. The upper end of the spring 62 abuts against the lower surface of the pressure plate 63, and the lower end abuts against the upper surface of the bottom plate of the hoisting box 3 or a ring seat fixed on the bottom plate. In the non-working state, the elastic force of the spring 62, through the abutting surfaces at both ends, keeps the pressure plate 63 and the trigger rod 61 assembly in a defined initial position. When the hoisting box 3 lands, the ground reaction force acts on the trigger rod 61 through the pressure plate 63, pushing the entire assembly upward. At this time, the spring 62 is compressed between the pressure plate 63 and the bottom plate of the hoisting box 3, and the trigger rod 61 performs a strictly linear motion under the constraint of the guide hole.

[0033] Optionally, the release mechanism 5 includes a hook 51, a rotating shaft 52, and a servo motor 53. The hook 51 is fixedly mounted on one end of the rotating shaft 52, and one end of the rotating shaft 52 is driven and connected to the servo motor 53. The servo motor 53 is mounted on the hoisting box 3 and is used to receive a trigger signal and drive the servo motor 53 to rotate so that the hook 51 rotates to release the rope 21.

[0034] In this optional embodiment, the release mechanism 5 includes a hook 51, a rotating shaft 52, and a servo motor 53. The rotating shaft 52 is rotatably supported on a mounting bracket on the top of the hoisting box 3 via two bearing seats. The hook 51 is a rigid metal hook, the root of which is fixedly fitted onto one end of the rotating shaft 52 by a key connection or set screw. The servo motor 53 is also fixed on the bracket, and its output shaft is directly driven connected to the other end of the rotating shaft 52 via a coupling. A metal ring is provided at the end of the rope 21, which is suspended in the hook groove of the hook 51. During hoisting and lowering, the servo motor 53 receives controller commands to hold the hook 51 at a specific locking angle. When the hook is facing upwards (usually with the hook opening facing upwards), the loop at the end of the rope 21 is reliably supported in the arc-shaped hook groove of the rotating hook 51 and cannot come out on its own. When the servo motor 53 receives the trigger signal from the trigger mechanism 6, its internal control circuit drives the motor shaft to rotate. The torque is transmitted to the rotating shaft 52 through the coupling, causing the rotating hook 51 fixed on it to rotate synchronously by a preset angle (e.g., 90 degrees or 120 degrees). As the rotating hook 51 rotates, the opening direction of its hook groove changes. The loop at the end of the rope 21, which was originally constrained therein, loses its support and slips off the rotating hook 51 under the action of gravity, thereby realizing the automatic separation of the rope 21 from the hoisting box 3.

[0035] Furthermore, the swivel 51 is a three-quarter ring structure with a notch, and the width of the notch in the swivel 51 is greater than the diameter of the rope 21.

[0036] In this optional embodiment, the swivel 51 can be a three-quarter ring made of high-strength steel, with a notch naturally formed on its circumference. The notch is larger than the diameter of the rope 21 body but smaller than the diameter of the release ring connected to the end of the rope 21. In the locked state, the ring at the end of the rope 21 is placed inside the nearly closed ring of the swivel 51. Due to the large wrap angle of the ring, even if the hoisting box 3 rotates or swings in the air, the ring of the rope 21 is blocked by the swivel 51 in all radial directions and is firmly locked in the ring, providing extremely high connection reliability. When release is required, the servo motor 53 drives the swivel 51 to rotate, causing its notch to rotate to a predetermined position facing downward or sideways. At this time, the rope body of the rope 21 connected to the hoisting box 3 can pass smoothly through the notch. Under the action of gravity, the rope 21 moves downward until the ring at its end contacts the edge of the notch. Since the diameter of the ring is larger than the width of the notch, the ring is blocked by the edge of the notch and cannot pass through.

[0037] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A drone for convenient delivery of relief supplies, characterized in that, The device includes a drone (1), a rope reel (2), a gondola (3), a triggering mechanism (6), and a release mechanism (5). The rope reel (2) is mounted on the drone (1). One end of the rope (21) of the rope reel (2) is wound around the rope reel (2), and the other end of the rope (21) is connected to the gondola (3). The triggering mechanism (6) is located on the gondola (3) and is used to generate a trigger signal when the gondola (3) touches the ground. The release mechanism (5) is located on the gondola (3) and is connected to the rope (21). It is used to receive the trigger signal and act to separate the rope (21) from the gondola (3).

2. The drone for facilitating the delivery of relief supplies according to claim 1, characterized in that, The lower sides of the UAV (1) are equipped with clamping buffer mechanisms (4), which include rollers (41) and shock absorbers (42). The rollers (41) are used to abut against the side walls of the pod (3) to provide buffer protection.

3. The drone for facilitating the delivery of relief supplies according to claim 2, characterized in that, The rollers (41) are mounted on both sides of the lower part of the UAV (1) via the shock absorbers (42).

4. The drone for facilitating the delivery of relief supplies according to claim 1, characterized in that, The triggering mechanism (6) includes a trigger rod (61), a spring (62) and a pressure plate (63). A pressure sensor is provided in the pressure plate (63). When the hoisting box (3) is grounded, the pressure plate (63) is pressed, causing the spring (62) to compress. The pressure sensor is triggered and sends a signal as the trigger signal.

5. The drone for facilitating the delivery of relief supplies according to claim 4, characterized in that, The trigger rod (61) is connected to the pressure plate (63), and the spring (62) is sleeved on the trigger rod (61). The two ends of the spring (62) abut against the upper surface of the pressure plate (63) and the lower surface of the hanging box (3), respectively.

6. The drone for facilitating the delivery of relief supplies according to claim 1, characterized in that, The release mechanism (5) includes a hook (51), a rotating shaft (52), and a servo motor (53). The hook (51) is fixedly mounted on one end of the rotating shaft (52). One end of the rotating shaft (52) is driven and connected to the servo motor (53). The servo motor (53) is mounted on the hoisting box (3). The servo motor (53) is used to receive the trigger signal and drive the servo motor (53) to rotate so that the hook (51) rotates to release the cable (21).

7. The drone for facilitating the delivery of relief supplies according to claim 6, characterized in that, The swivel (51) is a three-quarter ring structure with a notch, and the width of the notch of the swivel (51) is greater than the diameter of the rope (21).

Images