An assembled drone search and rescue mechanism

Abstract

The present invention discloses an assembled unmanned aerial vehicle (UAV) search and rescue mechanism, which relates to the technical field of UAVs and includes an UAV main body, a first aid kit and a landing platform. A thermal imager is installed at the bottom of the UAV main body, and a parachute is fixedly connected to the outer wall of the first aid kit. When the first aid kit is carried into the air by the UAV main body, the downward movement of the T-shaped column triggers the counterclockwise rotation of the servo motor output shaft. The counterclockwise rotation of the servo motor output shaft is utilized to clamp and fix the first aid kit on the surface of the placement plate by the clamping column. Compared with the method in the prior art in which rescuers directly put the first aid kit into the first aid kit without fixing it, or manually adjusting the position of the first aid kit, the method avoids the need for rescuers to adjust the position of the first aid kit after putting it in, ensures that the first aid kit is in the center position inside the first aid kit, reduces flight instability caused by center of gravity shift, fixes the first aid kit inside the first aid kit by the clamping column, and reduces shaking and vibration of the first aid kit during flight.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to an assembled UAV search and rescue mechanism. Background Art

[0002] A modular drone refers to a drone system in which individual components (such as the fuselage, wings, engines, sensors, batteries, etc.) are provided separately and can be combined by the user as needed. Compared with pre-assembled drones, modular drones provide more customization and flexibility.

[0003] For example, a search and rescue drone disclosed in the publication number of the Chinese utility model patent "CN211253009U" includes a lifting drive device and a propeller. The top side of the lifting drive device is provided with a propeller, the bottom side of the lifting drive device is provided with an electronic control unit, the bottom side of the electronic control unit is provided with a connecting rod, the bottom side of the connecting rod is provided with a camera, the bottom side of the lifting drive device is provided with a support leg, the bottom side of the support leg is provided with a fixing block, one side of the fixing block is provided with a storage groove, the inner side of the storage groove is provided with a locking block, a spring is provided between the locking block and the side opposite to the storage groove, the bottom side of the fixing block is provided with a connecting plate, the top side of the connecting plate is provided with a fixing groove, one end of the inner side of the fixing groove is provided with a guide groove, the inner side of the guide groove is provided with a push rod, one end of the push rod is provided with a hydraulic telescopic rod, one side of the hydraulic telescopic rod is provided with a hydraulic column, the top side of the hydraulic column is provided with an unlocking button, and the bottom side of the connecting plate is provided with a material box. The search and rescue drone has an increased search and rescue range, provides materials, and is easy to use;

[0004] When rescue workers put relief supplies into the supply box of the search and rescue drone, the relief supplies cannot be evenly distributed in the supply box, and the relief supplies cannot be fixed. As a result, the drone shakes in the supply box during flight, resulting in an unstable center of gravity and reduced flight stability. In addition, after airdropping relief supplies, the above-mentioned search and rescue drone cannot provide the rescue workers with an accurate location in a dark environment, which will delay precious rescue time.

[0005] In order to solve the above problems, the inventor proposed an assembled drone search and rescue mechanism. Summary of the Invention

[0006] In order to solve the above technical problems, an assembled drone search and rescue mechanism is provided. This technical solution solves the problems of securing rescue materials and providing accurate locations in the dark proposed in the above background technology.

[0007] To achieve the above objectives, the present invention can be implemented by adopting the following technical solutions:

[0008] The present invention provides an assembled unmanned aerial vehicle search and rescue mechanism, comprising an unmanned aerial vehicle body, a first aid kit, and an example landing platform. A thermal imager is mounted on the bottom of the unmanned aerial vehicle body. A parachute is fixedly connected to the outer wall of the first aid kit, with at least two parachutes provided. The first aid kit is located between the unmanned aerial vehicle body and the example landing platform. A trigger fixing assembly is provided inside and on the bottom of the first aid kit. A lighting assembly is provided on the outside of the first aid kit. A mounting assembly is provided on the bottom of the unmanned aerial vehicle body.

[0009] The trigger fixing assembly includes a cavity column fixedly connected to the bottom of the first aid box, a T-shaped column slidably connected in the cavity column, a compression spring fixedly connected to the top surface of the T-shaped column, a photoelectric sensor installed inside the cavity column, a servo motor fixedly connected to the bottom surface of the first aid box, the output shaft of the servo motor fixedly connected to the limit plate, the surface of the limit plate is provided with a limiting groove at equal intervals in an annular manner, and there are at least four limiting grooves, a cross slide rail fixedly connected to the interior of the first aid box, a slide plate slidably connected to the cross slide rail, and at least four slide plates are provided, the four slide plates are fixedly connected to the limiting column on one side close to the limiting plate, and the four slide plates are plugged with clamping columns on the side away from the limiting plate, the first aid box is fixedly connected to the interior of the first aid box, the surface of the placement plate is provided with moving grooves at equal intervals in an annular manner, and there are at least four moving grooves, the first aid box is fixedly connected to the support leg on the side away from the drone body, and a collision sensor is provided inside the support leg.

[0010] Preferably, a square hole is provided at the bottom of the cavity column, the T-shaped column is adapted to the square hole, and one end of the compression spring away from the T-shaped column is fixedly connected to the first aid kit.

[0011] Preferably, the limiting grooves are matched with the limiting columns, and the four limiting grooves are arc-shaped.

[0012] Preferably, the four movable slots are adapted to the four clamping columns.

[0013] Preferably, the lighting component includes a first synchronous pulley fixedly connected to the output shaft of the servo motor. A speed increasing gear machine is fixedly connected to the inner bottom surface of the first aid kit. A second synchronous pulley is fixedly connected to the input shaft of the speed increasing gear machine. A third bidirectional synchronous pulley is fixedly connected to the output shaft of the speed increasing gear machine. A threaded rod is rotatably connected inside the first aid kit. There are at least two threaded rods. A guide rail is fixedly connected inside the first aid kit. There are at least two groups of guide rails. Each group of guide rails has at least two guide rails. A slider is slidably connected to each guide rail. A fixing plate is fixedly connected to each guide rail. A long connecting rod is rotatably connected to one side of the four fixing plates away from the slider. The long connecting rods on one side away from the fixing plate are rotatably connected to an opening and closing plate together. There are at least two opening and closing plates. A plurality of LED lights are equidistantly arranged on the two opening and closing plates. A limiting plate is fixedly connected inside a group of guide rails on the side away from the threaded rod. Electric contacts are arranged at the bottom of the two limiting plates. An electrode plate is fixedly connected to the slider on the side away from the two threaded rods.

[0014] Preferably, the first synchronous pulley and the second synchronous pulley are in transmission connection. A fourth synchronous pulley is fixedly connected to the two threaded rods. The fourth synchronous pulley and the second synchronous pulley are in transmission connection.

[0015] Preferably, the two sliders away from the limiting plate are in threaded connection with the two threaded rods. The two opening and closing plates are rotatably connected to the sliders.

[0016] Preferably, the mounting component includes a telescopic rod fixedly connected to the bottom of the UAV body. A first moving block is fixedly connected to the output rod of the telescopic rod. Short connecting rods are symmetrically rotatably connected to the outer walls on both sides of the first moving block. There are at least four short connecting rods. The ends of every two short connecting rods away from the first moving block are rotatably connected to a second moving block. There are at least two second moving blocks. A cavity cylinder is fixedly connected to the bottom of the UAV body. A clamping block is fixedly connected inside the cavity cylinder. There are at least two clamping blocks. A connecting rod is slidably connected inside the cavity cylinder.

[0017] Preferably, the two second moving blocks are slidably connected to the cavity cylinder. The connecting rod is in the shape of a "dry", and the connecting rod is fixedly connected to the first aid kit.

[0018] As described above, the advantages of the present invention are:

[0019] When the first aid kit is carried into the air by the drone body, the downward movement of the T-shaped column triggers the counterclockwise rotation of the servo motor output shaft. The counterclockwise rotation of the servo motor output shaft is used to clamp and fix the first aid kit on the surface of the placement plate. Compared with the existing method in which rescuers directly put the first aid kit into the first aid kit without fixing it, or manually adjusting the position of the first aid kit, the present device can automatically fix the first aid kit, avoiding the need for rescuers to adjust the position after putting the first aid kit in, ensuring that the first aid kit is in the center position inside the first aid kit, reducing flight instability caused by center of gravity shift, and fixing the first aid kit inside the first aid kit by the clamping column, reducing shaking and vibration of the first aid kit during flight;

[0020] The first aid kit is airdropped by the drone body. When the first aid kit touches the ground, the collision sensor in the supporting leg at the bottom of the first aid kit senses the impact force of the first aid kit falling to the ground, thereby triggering the servo motor output shaft to rotate clockwise through the controller. The clockwise rotation of the servo motor output shaft enables the clamping column to leave the first aid kit inside the first aid kit when the first aid kit lands, making it convenient for the rescue personnel to take it. Compared with the prior art in which the first aid kit is collided with by the flight of the drone body in the first aid kit, the present device releases the first aid kit only when the first aid kit lands, avoiding the first aid kit from being repeatedly collided in the first aid kit and causing damage. In this way, it is ensured that after obtaining the first aid kit, the rescue personnel can use the intact items in the first aid kit for self-rescue.

[0021] When the first aid kit is carried into the air by the drone body, the downward movement of the T-shaped column triggers the servo motor output shaft to rotate counterclockwise. When the drone body airdrops the first aid kit and the first aid kit touches the ground, the upward movement of the T-shaped column triggers the servo motor output shaft to rotate clockwise. The counterclockwise and clockwise rotations of the servo motor output shaft are utilized to realize the automatic closing of the opening and closing plate when the first aid kit is in the air and the automatic expansion of the opening and closing plate when the first aid kit lands. Compared with the prior art method in which the rescuer needs to manually adjust the position of the first aid supplies after putting them in before the first aid kit is launched and then close the door, the present device simplifies the opening and closing process of the first aid kit and avoids the leakage of rescue supplies due to the rescuer forgetting to lock the door. This reduces errors in human operation and ensures that the opening and closing plate in the first aid kit can correctly perform the opening and closing functions at critical moments.

[0022] When the opening and closing plate is unfolded, the upward movement of the slider causes the electrical contacts between the electrode plate and the bottom of the limiting plate to change from a disengaged state to a contact state, thereby triggering the LED light. When the opening and closing plate is unfolded, the LED light illuminates and shines towards the sky, thereby providing rescue personnel with an accurate search and rescue location. Compared with the existing technology that uses the drone navigation function, this avoids the situation where the search and rescue location is unclear due to the drone's inability to land. This makes it easier for rescue personnel to observe the location of the person to be rescued in the dark and quickly implement rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front perspective schematic diagram of the overall structure shown in the present invention;

[0024] Figure 2 It is a side perspective schematic diagram of the overall structure shown in the present invention;

[0025] Figure 3 This is a schematic diagram of a cutaway perspective view of the interior of a cavity column shown in the present invention;

[0026] Figure 4 The present invention shows Figure 3 A partially enlarged three-dimensional schematic diagram;

[0027] Figure 5 It is a cutaway perspective schematic diagram of the interior of the first aid kit shown in the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the cross slide rail related components shown in the present invention;

[0029] Figure 7 It is a three-dimensional schematic diagram of the components related to the placement plate shown in the present invention;

[0030] Figure 8 This is an exploded perspective diagram of the connection between the limiting plate and the placement plate shown in the present invention;

[0031] Figure 9 It is a three-dimensional schematic diagram of the relevant components of the speed increasing gear machine shown in the present invention;

[0032] Figure 10 This is a three-dimensional schematic diagram of the connection between the threaded rod and the slider shown in the present invention;

[0033] Figure 11 The present invention shows Figure 10 A partially enlarged three-dimensional schematic diagram of B in the middle;

[0034] Figure 12 It is a three-dimensional schematic diagram of the relevant components of the opening and closing plate shown in the present invention;

[0035] Figure 13 It is a schematic plan view of the overall structure of the present invention;

[0036] Figure 14 This is a schematic perspective cutaway diagram of the interior of the cavity tube shown in the present invention;

[0037] Figure 15 The present invention shows Figure 14 A partially enlarged three-dimensional schematic diagram of C in the middle.

[0038] Wherein, the accompanying drawings in the present invention are:

[0039] 1. Drone body; 11. Thermal imager; 2. First aid kit; 21. Parachute; 3. Example of landing platform;

[0040] Trigger fixing assembly: 41, cavity column; 42, T-shaped column; 43, compression spring; 44, photoelectric sensor; 45, servo motor; 46, limit plate; 47, limit slot; 48, cross slide; 49, slide; 410, limit column; 411, clamping column; 412, placement plate; 413, moving slot;

[0041] Lighting assembly: 51, synchronous wheel 1; 52, speed increasing gear; 5201, synchronous wheel 2; 5202, bidirectional synchronous wheel 3; 53, threaded rod; 5301, synchronous wheel 4; 54, guide rail; 55, slider; 56, fixed plate; 57, long connecting rod; 58, opening and closing plate; 59, LED light; 510, limit plate; 511, electrode plate;

[0042] Mounting components: 61, telescopic rod; 62, moving block 1; 63, short connecting rod; 64, moving block 2; 65, cavity tube; 66, clamping block; 67, connecting rod. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] See Figures 1 to 15 As shown in the figure, an embodiment of the present invention is provided, and an assembled drone search and rescue mechanism is described in detail below:

[0045] Example 1:

[0046] An assembled drone search and rescue mechanism, such as Figure 1 and Figure 2 As shown, it includes a drone body 1, a first aid kit 2 and a landing platform example 3. A thermal imager 11 is installed on the bottom of the drone body 1. A parachute 21 is symmetrically fixedly connected to the outer wall of the first aid kit 2, which is used to provide a deceleration effect for the first aid kit 2 when landing. There are at least two parachutes 21. The first aid kit 2 is located between the drone body 1 and the landing platform example 3. A trigger fixing component is provided inside and at the bottom of the first aid kit 2. A lighting component is provided on the outside of the first aid kit 2. A mounting component is provided at the bottom of the drone body 1.

[0047] like Figures 3 to 8As shown, the trigger fixing assembly includes a cavity column 41 fixedly connected to the bottom of the first aid box 2, a T-shaped column 42 is slidably connected in the cavity column 41, a compression spring 43 is fixedly connected to the top surface of the T-shaped column 42, a photoelectric sensor 44 is installed inside the cavity column 41, a servo motor 45 is fixedly connected to the bottom surface of the first aid box 2, and the photoelectric sensor 44 is electrically connected to the servo motor 45 through a controller, the output shaft of the servo motor 45 is fixedly connected to a limit plate 46, and a limit groove 47 is equidistantly arranged on the surface of the limit plate 46, and there are no less than four limit grooves 47, a cross slide 48 is fixedly connected to the inside of the first aid box 2, and the cross slide 48 is located above the limit plate 46, a slide 49 is slidably connected to the cross slide 48, and there are no less than four slides 49, and the four slides 49 are fixedly connected to the limit column 410 on one side close to the limit plate 46, and the limit column 410 is away from the slide 4 One end of 9 is located inside the limiting groove 47, and the four slides 49 are connected to the side away from the limiting plate 46 with a clamping column 411. The first aid kit 2 is fixedly connected to a placement plate 412 inside. The clamping column 411 is used to clamp and fix the first aid kit, and make the first aid kit be located at the center of the placement plate 412. The surface of the placement plate 412 is annularly and equidistantly provided with moving grooves 413. There are no less than four moving grooves 413. The ends of the four clamping columns 411 away from the slide 49 are located inside the moving grooves 413. The first aid kit 2 is fixedly connected to a support leg on the side away from the drone body 1, and a collision sensor is provided inside the support leg. The collision sensor is electrically controlled by the controller to connect to the servo motor 45. When the first aid kit 2 falls to the ground, the collision sensor will feel the impact force when it falls to the ground, thereby triggering the output shaft of the servo motor 45 to rotate clockwise through the controller;

[0048] Further, such as Figure 4 As shown, a square hole is opened at the bottom of the cavity column 41, and the T-shaped column 42 is adapted to the square hole. The end of the compression spring 43 away from the T-shaped column 42 is fixedly connected to the first aid box 2;

[0049] Further, such as Figure 6 As shown, the diameter of the limiting groove 47 is adapted to the diameter of the limiting column 410, and the shape of the four limiting grooves 47 is an arc;

[0050] Further, such as Figure 7 As shown, the movable groove 413 is adapted to the clamping column 411, and the clamping column 411 can be horizontally displaced along the movable groove 413;

[0051] Further, such as Figures 9 to 12As shown, the lighting assembly includes a synchronous wheel 1 51 fixedly connected to the output shaft of the servo motor 45, a speed-increasing gear 52 fixedly connected to the bottom surface of the first aid box 2, a synchronous wheel 2 5201 fixedly connected to the input shaft of the speed-increasing gear 52, and a bidirectional synchronous wheel 3 5202 fixedly connected to the output shaft of the speed-increasing gear 52. The internal structure characteristics of the speed-increasing gear 52 make the rotation speed of the bidirectional synchronous wheel 3 5202 higher than the rotation speed of the synchronous wheel 2 5201. A threaded rod 53 is symmetrically connected to the first aid box 2 for rotation. There are at least two threaded rods 53. A guide rail 54 is fixedly connected to the first aid box 2. There are at least two groups of guide rails 54. Each group of guide rails 54 is provided with at least two guide rails. A slider 55 is slidably connected to each guide rail 54. A fixing plate 56 is fixedly connected to each guide rail 54. The fixed plate 56 is rotatably connected to a long connecting rod 57 on the side away from the slider 55. The two long connecting rods 57 are rotatably connected to an opening and closing plate 58 on the side away from the fixed plate 56. The opening and closing plates 58 are arranged in an inclined state. There are no less than two opening and closing plates 58. A plurality of LED lights 59 are equidistantly arranged on the two opening and closing plates 58, and the LED lights 59 are arranged in a matrix. A limiting plate 510 is fixedly connected to a set of guide rails 54 on the side away from the threaded rod 53. Electrical contacts are provided at the bottom of the two limiting plates 510. An electrode plate 511 is fixedly connected to the slider 55 on the side away from the two threaded rods 53. The electrical contacts at the bottom of the limiting plates 510 are in contact with the electrode plates 511. When the electrical contacts at the bottom of the limiting plates 510 contact the electrode plates 511, the LED lights 59 on the opening and closing plates 58 are lit.

[0052] Further, such as Figure 9 As shown, the synchronous wheel 1 51 is connected to the synchronous wheel 2 5201 by a synchronous belt, so that the rotation speed of the synchronous wheel 2 5201 is equal to the rotation speed of the synchronous wheel 1 51. The two threaded rods 53 are fixedly connected to the synchronous wheel 4 5301, and the synchronous wheel 4 5301 is connected to the synchronous wheel 2 5201 by a synchronous belt, so that the rotation speed of the bidirectional synchronous wheel 3 5202 is equal to the rotation speed of the threaded rods 53.

[0053] Further, such as Figures 10 to 12 As shown, the two sliders 55 away from the limiting plate 510 are threadedly connected to the two threaded rods 53, and the two opening and closing plates 58 are rotatably connected to the sliders 55;

[0054] During operation: When the device is lifted into the air, the output shaft of the servo motor 45 can be rotated counterclockwise. The detailed steps are as follows:

[0055] The first aid kit contains a flashlight, drinking water, clothes and food, so that the rescued person can carry out simple self-rescue after obtaining the first aid kit and wait for the arrival of rescuers;

[0056] The rescuer puts the first aid kit into the first aid box 2 and places it on the surface of the placement plate 412 and between the four clamping columns 411. After the rescuer confirms that the first aid kit has been placed inside the first aid box 2, he tells the operator of the drone body 1 that the drone body 1 can take off. The operator controls the drone body 1 to slowly rise vertically and leave the landing platform example 3. When the drone body 1 gradually leaves the surface of the landing platform example 3, the compression spring 43 in the cavity column 41 gradually extends from a compressed state, pushing the T-shaped column 42 to move vertically downward along the cavity column 41 until the cross plate on the T-shaped column 42 contacts the inner cavity bottom surface of the cavity column 41. At this time, the compression spring 43 stops extending, the T-shaped column 42 remains stationary, but the compression spring 43 is still in a compressed state.

[0057] During the vertical downward movement of the T-shaped column 42, the path of the T-shaped column 42 passes through the light emitted by the photoelectric sensor 44. When the horizontal plate on the T-shaped column 42 moves downward to the position of the photoelectric sensor 44, the light emitted by the photoelectric sensor 44 is changed, causing the photoelectric sensor 44 to start the output shaft of the servo motor 45 through the controller to rotate counterclockwise.

[0058] The device can clamp and fix the first aid kit placed in the first aid box 2. The detailed steps are as follows:

[0059] When the output shaft of the servo motor 45 rotates counterclockwise, it drives the limit plate 46 to rotate counterclockwise along with the output shaft of the servo motor 45. During the counterclockwise rotation of the limit plate 46, the limit groove 47 on the surface of the limit plate 46 squeezes the limit column 410, so that the limit column 410 drives the slide plate 49 to move horizontally along the cross slide rail 48 toward the side close to the center of the cross slide rail 48. During the horizontal movement of the slide plate 49 toward the center of the cross slide rail 48, the clamping column 411 on the slide plate 49 moves horizontally along the moving groove 413 toward the side close to the center of the placement plate 412. The four clamping columns 411 gradually approach the first-aid kit on the placement plate 412 until the first-aid kit is clamped and fixed, and the first-aid kit is located at the center of the placement plate 412. At this time, the output shaft of the servo motor 45 stops rotating counterclockwise.

[0060] When the drone body 1 is lifted into the air, the first aid kit is clamped and fixed. Compared with the prior art method in which the rescuer needs to adjust the position of the first aid kit in the first aid box 2, the present device can reduce the time of loading the first aid kit and shorten the preparation time before the drone body 1 takes off. In addition, the first aid kit can be adjusted to the middle position to prevent the problem of unstable center of gravity of the drone body 1.

[0061] The device can close the opening and closing plate 58 while clamping and fixing the first aid kit. The detailed steps are as follows:

[0062] When the output shaft of the servo motor 45 rotates counterclockwise, the synchronous wheel 1 51 on the output shaft of the servo motor 45 synchronizes the speed of the output shaft of the servo motor 45 with the speed of the synchronous wheel 2 5201 on the input shaft of the speed-increasing gear 52 through the synchronous belt. After the acceleration of the speed-increasing gear 52, the speed of the bidirectional synchronous wheel 3 5202 on the output shaft of the speed-increasing gear 52 is higher than the speed of the synchronous wheel 2 5201 on the input shaft of the speed-increasing gear 52, that is, the speed of the bidirectional synchronous wheel 3 5202 is higher than the speed of the output shaft of the servo motor 45.

[0063] Since a synchronous belt is connected between the two-way synchronous wheel three 5202 and the synchronous wheel four 5301 on the threaded rod 53, the two-way synchronous wheel three 5202 drives the threaded rod 53 to rotate together, and the rotation speed of the threaded rod 53 is equal to that of the two-way synchronous wheel three 5202. During the rotation of the threaded rod 53, the slider 55 on the threaded rod 53 moves vertically downward along the guide rail 54. At the same time, the slider 55 on the side away from the threaded rod 53 also moves vertically downward along the guide rail 54. During the vertical downward movement of the slider 55, the slider 55 pulls the opening and closing plates 58, so that the lower ends of the two opening and closing plates 58 face downward and the upper ends rotate and move toward the direction close to the middle of the first aid box 2;

[0064] As the lower end of the opening and closing plate 58 moves downward and the upper end thereof rotates toward the middle of the first aid kit 2, the electrode plate 511 moves away from the electrical contact at the bottom of the limiting plate 510. The electrical contact between the electrode plate 511 and the bottom of the limiting plate 510 changes from a contact state to a disengagement state, causing the LED light 59 on the opening and closing plate 58 to turn off.

[0065] As the opening and closing plate 58 rotates and moves toward the middle of the first aid box 2, the long connecting rod 57 rotates toward the middle of the first aid box 2 with the rotating connection with the fixed plate 56 as the axis, until the opening and closing plate 58 rotates and moves from the inclined state with an angle with the horizontal plane to the vertical state, and fits with the open part of the first aid box 2, so that the interior of the first aid box 2 becomes a sealed space. At this time, the opening and closing plate 58 and the long connecting rod 57 are in the vertical state, and the LED light 59 on the opening and closing plate 58 faces the interior of the first aid box 2;

[0066] When the first aid kit 2 is lifted into the air, the output shaft of the servo motor 45 is triggered to rotate counterclockwise, driving the opening and closing plate 58 to rotate and move to cover the opening of the first aid kit 2. Compared with the prior art method that requires rescuers to put in first aid supplies and then manually adjust the position of the first aid supplies before closing the door, the present device uses the T-shaped column 42 to trigger the photoelectric sensor 44 when the first aid kit 2 is lifted into the air, causing the output shaft of the servo motor 45 to rotate forward, and the opening and closing plate 58 to rotate and move from the expanded state to the vertical state and fit the opening of the first aid kit 2, making the interior of the first aid kit 2 a closed space. This simplifies the operation steps for rescuers after putting in rescue supplies and prevents the first aid kit from detaching and spilling during flight due to rescuers forgetting to lock the door.

[0067] Example 2:

[0068] like Figures 13 to 15 As shown, the mounting assembly includes a telescopic rod 61 fixedly connected to the bottom surface of the drone body 1, the output rod of the telescopic rod 61 is fixedly connected to the moving block 1 62, and the outer walls on both sides of the moving block 1 62 are symmetrically connected to the short connecting rods 63, and there are no less than four short connecting rods 63. The ends of every two short connecting rods 63 away from the moving block 1 62 are rotatably connected to the moving block 2 64, and the moving blocks 2 64 are symmetrically arranged. A cavity tube 65 is fixedly connected to the bottom of the drone body 1, and a card block 66 is fixedly connected in the cavity tube 65. There are no less than two card blocks 66. A connecting rod 67 is slidably connected in the cavity tube 65, and the connecting rod 67 is in contact with the card block 66.

[0069] Further, such as Figure 14 and Figure 15 As shown, the two second moving blocks 64 are slidably connected to the holes on the side walls of the cavity tube 65. The two second moving blocks 64 can be horizontally displaced along the cavity tube 65. The second moving block 64 is used to limit the movement of the connecting rod 67. The connecting rod 67 is in the shape of a "stem". The bottom surface of the connecting rod 67 is fixedly connected to the first aid box 2.

[0070] When working: When the device finds a person to be rescued, it can airdrop the first aid kit 2. When the first aid kit 2 lands, it can make the output shaft of the servo motor 45 rotate clockwise. The detailed steps are as follows:

[0071] When the thermal imager 11 installed on the drone body 1 identifies the person to be rescued, the operator of the drone body 1 operates to extend the output rod of the telescopic rod 61, and the moving block 1 62 at the bottom of the output rod of the telescopic rod 61 moves vertically downward. The short connecting rod 63 on the moving block 1 62 pushes the moving block 2 64, so that the two moving blocks 2 64 move horizontally in the direction away from the side of the connecting rod 67. The two moving blocks 2 64 gradually break away from the concave part of the connecting rod 67. When the two moving blocks 2 64 completely break away from the concave part of the connecting rod 67, the connecting rod 67 loses its movable position. The second block 64 is restricted, and the mobile block 64 moves vertically downward along the cavity tube 65 with the first aid kit 2. When the connecting rod 67 completely leaves the cavity tube 65, the connecting rod 67 and the first aid kit 2 fall freely. During the free fall of the first aid kit 2, the parachute 21 is pushed by the airflow, and is quickly inflated and unfolded to form a parachute structure. When the parachute 21 is unfolded, the friction and resistance between the parachute cloth and the air increase, thereby generating an upward resistance airflow, thereby slowing down the falling speed of the first aid kit 2. The first aid kit is airdropped to the person to be rescued through the free fall of the first aid kit 2.

[0072] When the first aid kit 2 falls to the ground, the supporting legs of the first aid kit 2 are impacted by the ground, and the collision sensor in the supporting legs senses the impact. When the collision sensor senses the impact, the collision sensor controls the output shaft of the servo motor 45 through the controller to start and rotate clockwise.

[0073] After the device is lowered and lands, the opening and closing plate 58 is unfolded and the clamping column 411 releases the first aid kit. The following are the detailed steps:

[0074] When the output shaft of the servo motor 45 rotates clockwise, the synchronous wheel 1 51 on the output shaft of the servo motor 45 synchronizes the speed of the output shaft of the servo motor 45 with the speed of the synchronous wheel 2 5201 on the input shaft of the speed-increasing gear 52 through the synchronous belt. After the acceleration of the speed-increasing gear 52, the speed of the bidirectional synchronous wheel 3 5202 on the output shaft of the speed-increasing gear 52 is higher than the speed of the synchronous wheel 2 5201 on the input shaft of the speed-increasing gear 52, that is, the speed of the bidirectional synchronous wheel 3 5202 is higher than the speed of the output shaft of the servo motor 45.

[0075] Since a timing belt is connected between the two-way synchronous wheel three 5202 and the synchronous wheel four 5301 on the threaded rod 53, the two-way synchronous wheel three 5202 drives the threaded rod 53 to rotate together, and the rotation speed of the threaded rod 53 is equal to that of the two-way synchronous wheel three 5202. During the rotation of the threaded rod 53, the slider 55 on the threaded rod 53 moves vertically upward along the guide rail 54. At the same time, the slider 55 away from the side of the threaded rod 53 also moves vertically upward along the guide rail 54. During the vertical upward movement of the slider 55, the slider 55 pushes the opening and closing plates 58, causing the two opening and closing plates 58 to rotate and move in a direction away from the middle of the first aid box 2;

[0076] As the opening and closing plate 58 rotates and moves away from the middle of the first aid kit 2, the electrode plate 511 gradually contacts the electrical contact at the bottom of the limiting plate 510. The electrical contacts at the bottom of the limiting plate 510 change from a disengaged state to a contact state, causing the LED light 59 on the opening and closing plate 58 to turn on and illuminate.

[0077] As the opening and closing plate 58 rotates and moves away from the middle of the first aid box 2, the long connecting rod 57 rotates away from the middle of the first aid box 2 with the rotating connection with the fixed plate 56 as the axis. During this process, the opening and closing plate 58 changes from a vertical state in contact with the opening of the first aid box 2 to an initial state, that is, an inclined state with an angle with the horizontal plane, so that the interior of the first aid box 2 changes from a sealed space to the initial open state. At this time, the LED light 59 on the opening and closing plate 58 shines bright light toward the sky.

[0078] After the first aid kit 2 is airdropped to the ground, the opening and closing plate 58 changes from a closed state to an open state, and at the same time, the LED light 59 on the opening and closing plate 58 emits bright light toward the sky. Compared with the existing method in which drones can only provide fuzzy coordinates in the dark, this device uses the light from the opening and closing plate 58 to shine toward the sky after landing. When rescuers arrive at the fuzzy coordinates provided by the drone, the device provides the rescuers with the accurate location of the person to be rescued, thereby speeding up the search and rescue time.

[0079] When the output shaft of the servo motor 45 rotates clockwise, it drives the limit plate 46 to rotate clockwise along with the servo motor 45. During the clockwise rotation of the limit plate 46, the limit groove 47 on the surface of the limit plate 46 squeezes the limit column 410, so that the limit column 410 drives the slide plate 49 to move horizontally along the cross slide rail 48 toward the side away from the center of the cross slide rail 48. During the horizontal movement of the slide plate 49 away from the center of the cross slide rail 48, the clamping column 411 on the slide plate 49 moves horizontally along the moving groove 413 toward the side away from the center of the placement plate 412. The four clamping columns 411 gradually move away from the first-aid kit on the placement plate 412, so that the clamped first-aid kit is released. At this time, the output shaft of the servo motor 45 stops rotating clockwise.

[0080] After the first aid kit 2 is airdropped to the ground, the clamping column 411 releases the clamped first aid kit. Compared with the prior art, the first aid kit is not fixed and may be damaged by shaking in the first aid kit 2. In this device, the clamping column 411 is driven to release the first aid kit only after the first aid kit 2 lands, thereby preventing the first aid kit from being damaged during shaking. It is convenient for the rescuer to take the first aid kit and start self-rescue.

[0081] When the rescued person is successfully rescued, the first aid kit 2 can be recovered and placed on the surface of the landing platform example 3. The connecting rod 67 on the first aid kit 2 is aligned with the cavity tube 65, and the connecting rod 67 is inserted into the interior of the cavity tube 65 until the upper surface of the connecting rod 67 contacts the block 66 in the cavity tube 65. At this time, the telescopic rod 61 can be operated to make the output rod of the telescopic rod 61 move vertically upward, and the short connecting rod 63 pulls the moving block 2 64, so that the two moving blocks 2 64 move horizontally toward the side close to the connecting rod 67 until the moving block 2 64 is completely inserted into the concave part of the connecting rod 67. At this time, the output rod of the telescopic rod 61 stops moving upward, and the recovery of the first aid kit 2 can be completed so that it can be used directly next time.

[0082] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An assembled drone search and rescue mechanism, comprising a drone body (1), a first aid kit (2) and a landing platform (3), characterized in that: A thermal imager (11) is installed at the bottom of the drone body (1), a parachute (21) is fixedly connected to the outer wall of the first aid box (2), and at least two parachutes (21) are provided. The first aid box (2) is located between the drone body (1) and the landing platform (3), a trigger fixing component is provided inside and at the bottom of the first aid box (2), a lighting component is provided on the outside of the first aid box (2), and a mounting component is provided at the bottom of the drone body (1); The trigger fixing assembly comprises a cavity column (41) fixedly connected to the bottom of the first aid box (2), a T-shaped column (42) is slidably connected inside the cavity column (41), a compression spring (43) is fixedly connected to the top surface of the T-shaped column (42), a photoelectric sensor (44) is installed inside the cavity column (41), a servo motor (45) is fixedly connected to the bottom surface of the first aid box (2), an output shaft of the servo motor (45) is fixedly connected to a limiting plate (46), a limiting groove (47) is provided on the surface of the limiting plate (46) at equal intervals, and no less than four limiting grooves (47) are provided, a cross slide rail (48) is fixedly connected inside the first aid box (2), and the first aid box (2) is fixedly connected to the bottom surface of the first aid box (2). A slide plate (49) is slidably connected to the cross slide rail (48), and at least four slide plates (49) are provided. The four slide plates (49) are fixedly connected to the limiting column (410) on one side close to the limiting plate (46), and the four slide plates (49) are plugged with a clamping column (411) on one side away from the limiting plate (46). The interior of the first aid box (2) is fixedly connected to a placement plate (412), and the surface of the placement plate (412) is provided with a circular and equidistant movable groove (413), and at least four movable grooves (413) are provided. The side of the first aid box (2) away from the drone body (1) is fixedly connected to a support leg, and a collision sensor is provided inside the support leg.

2. The assembled drone search and rescue mechanism according to claim 1, characterized in that: A square hole is provided at the bottom of the cavity column (41), the T-shaped column (42) is adapted to the square hole, and one end of the compression spring (43) away from the T-shaped column (42) is fixedly connected to the first aid box (2).

3. The assembled drone search and rescue mechanism according to claim 1, characterized in that: The limiting grooves (47) are adapted to the limiting columns (410), and the four limiting grooves (47) are arc-shaped.

4. The assembled drone search and rescue mechanism according to claim 1, characterized in that: The four movable slots (413) are adapted to the four clamping columns (411).

5. The assembled drone search and rescue mechanism according to claim 1, characterized in that: The lighting component includes a first synchronous pulley (51) fixedly connected to the output shaft of the servo motor (45). A speed increasing gear machine (52) is fixedly connected to the inner bottom surface of the first aid kit (2). A second synchronous pulley (5201) is fixedly connected to the input shaft of the speed increasing gear machine (52). A bidirectional third synchronous pulley (5202) is fixedly connected to the output shaft of the speed increasing gear machine (52). A threaded rod (53) is rotatably connected inside the first aid kit (2). There are at least two threaded rods (53). A guide rail (54) is fixedly connected inside the first aid kit (2). There are at least two groups of guide rails (54). Each group of guide rails (54) has at least two. A slider (55) is slidably connected to each guide rail (54). A fixing plate (56) is fixedly connected to each guide rail (54). A long connecting rod (57) is rotatably connected to the side of the four fixing plates (56) away from the slider (55). The sides of every two long connecting rods (57) away from the fixing plate (56) are jointly rotatably connected to an opening and closing plate (58). There are at least two opening and closing plates (58). A plurality of LED lights (59) are equidistantly arranged on the two opening and closing plates (58). A limiting plate (510) is fixedly connected inside a group of guide rails (54) on the side away from the threaded rod (53). Electric contacts are arranged at the bottom of the two limiting plates (510). An electrode plate (511) is fixedly connected to the slider (55) on the side away from the two threaded rods (53).

6. The assembled drone search and rescue mechanism according to claim 5, characterized in that: The first synchronous pulley (51) and the second synchronous pulley (5201) are in transmission connection. A fourth synchronous pulley (5301) is fixedly connected to the two threaded rods (53). The fourth synchronous pulley (5301) and the second synchronous pulley (5201) are in transmission connection.

7. The assembled drone search and rescue mechanism according to claim 5, characterized in that: The two sliders (55) away from the limiting plate (510) are in threaded connection with the two threaded rods (53). The two opening and closing plates (58) are rotatably connected to the slider (55).

8. The assembled drone search and rescue mechanism according to claim 1, characterized in that: The mounting component includes a telescopic rod (61) fixedly connected to the bottom of the UAV body (1). The output rod of the telescopic rod (61) is fixedly connected to a first moving block (62). Short connecting rods (63) are symmetrically and rotatably connected to the outer walls on both sides of the first moving block (62). There are at least four short connecting rods (63). The ends of every two short connecting rods (63) away from the first moving block (62) are rotatably connected to a second moving block (64). There are at least two second moving blocks (64). A cavity cylinder (65) is fixedly connected to the bottom of the UAV body (1). A clamping block (66) is fixedly connected inside the cavity cylinder (65). There are at least two clamping blocks (66). A connecting rod (67) is slidably connected inside the cavity cylinder (65).

9. The assembled drone search and rescue mechanism according to claim 8, characterized in that: The two second moving blocks (64) are slidably connected to the cavity cylinder (65). The connecting rod (67) is in a "dry" shape. The connecting rod (67) is fixedly connected to the first aid kit (2).

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