Assembled unmanned aerial vehicle search and rescue mechanism

Abstract

The invention discloses an assembly type unmanned aerial vehicle search and rescue mechanism, and relates to the technical field of unmanned aerial vehicles, the assembly type unmanned aerial vehicle search and rescue mechanism comprises an unmanned aerial vehicle body, a first-aid kit and a landing platform example, a thermal imager is installed at the bottom of the unmanned aerial vehicle body, and a parachute is fixedly connected to the outer wall of the first-aid kit; when the first-aid kit is carried by the unmanned aerial vehicle body to lift off, a T-shaped column moves downwards to trigger an output shaft of a servo motor to rotate anticlockwise, and by means of anticlockwise rotation of the output shaft of the servo motor, the first-aid kit on the surface of a placement plate is clamped and fixed by a clamping column; compared with the prior art that a rescue worker directly puts the first-aid kit into the first-aid kit without fixing or manually adjusts the position of the first-aid kit, the situation that the rescue worker puts the first-aid kit into the first-aid kit and then needs to adjust the position is avoided, the central position of the first-aid kit in the first-aid kit is ensured, unstable flying caused by center-of-gravity shift is reduced, and the safety of the first-aid kit is improved. The first-aid kit is fixed in the first-aid kit through the clamping columns, and shaking and vibration of the first-aid kit in the flying process are reduced.

Description

Technical Field

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

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

[0003] For example, a search and rescue drone disclosed in the publication number "CN211253009U" of the Chinese utility model patent 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 electric control unit, the bottom side of the electric 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 supporting leg, the bottom side of the supporting 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 rescue supplies in the supply box shake during the flight of the drone, resulting in the unstable center of gravity of the drone during flight, which reduces the flight stability. In addition, after airdropping the relief supplies, the above-mentioned search and rescue drone cannot provide the rescue workers with an accurate location in the dark environment, which will delay precious rescue time.

[0005] To solve the above problems, the inventor proposed an assembled UAV 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 fixing 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 the following technical solutions:

[0008] The present invention provides an assembled unmanned aerial vehicle search and rescue mechanism, comprising an unmanned aerial vehicle body, an emergency kit and a landing platform example, wherein a thermal imager is installed at the bottom of the unmanned aerial vehicle body, a parachute is fixedly connected to the outer wall of the emergency kit, and at least two parachutes are provided, the emergency kit is located between the unmanned aerial vehicle body and the landing platform example, a trigger fixing component is provided inside and at the bottom of the emergency kit, a lighting component is provided on the outer side of the emergency kit, and a mounting component is provided at 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 kit, a T-shaped column is slidably connected in the cavity column, a compression spring is fixedly connected to the top surface of the T-shaped column, a photoelectric sensor is installed inside the cavity column, a servo motor is fixedly connected to the bottom surface of the first aid kit, the output shaft of the servo motor is fixedly connected to a limit plate, the surface of the limit plate is annularly equidistantly provided with limit grooves, and there are no less than four limit grooves, a cross slide rail is fixedly connected inside the first aid kit, a slide plate is slidably connected on the cross slide rail, and there are no less than four slide plates, 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 other side away from the limiting plate, a placement plate is fixedly connected inside the first aid kit, and the surface of the placement plate is annularly equidistantly provided with moving grooves, and there are no less than four moving grooves, a support leg is fixedly connected to the side of the first aid kit away from the drone body, and a collision sensor is arranged inside the support leg.

[0010] Preferably, a square hole is formed at the bottom of the cavity column, the T-shaped column is matched with 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 in arc shape.

[0012] Preferably, the four movable grooves are matched with four clamping columns.

[0013] Preferably, the lighting assembly includes a synchronous wheel 1 fixedly connected to the output shaft of the servo motor, a speed-increasing gear machine is fixedly connected to the bottom surface of the first aid box, a synchronous wheel 2 is fixedly connected to the input shaft of the speed-increasing gear machine, and a bidirectional synchronous wheel 3 is fixedly connected to the output shaft of the speed-increasing gear machine. A threaded rod is rotatably connected in the first aid box, and at least two threaded rods are provided. A guide rail is fixedly connected in the first aid box, and at least two groups of guide rails are provided, and at least two guide rails are provided in each group. A slider is slidably connected to each guide rail, and a fixed plate is fixedly connected to each guide rail. A long connecting rod is rotatably connected to one side of the four fixed plates away from the slider, and an opening and closing plate is rotatably connected to one side of each two long connecting rods away from the fixed plate. There are at least two opening and closing plates, and a plurality of LED lamps are equidistantly arranged on the two opening and closing plates. A limiting plate is fixedly connected to a group of guide rails away from the threaded rod, and electrical contacts are provided at the bottom of the two limiting plates. An electrode plate is fixedly connected to the slider away from the two threaded rods.

[0014] Preferably, the synchronous wheel one is transmission-connected with the synchronous wheel two, and the two threaded rods are fixedly connected with a synchronous wheel four, and the synchronous wheel four is transmission-connected with the synchronous wheel two.

[0015] Preferably, the two sliding blocks away from the limiting plate are threadedly connected to the two threaded rods, and the two opening and closing plates are rotationally connected to the sliding blocks.

[0016] Preferably, the mounting assembly includes a telescopic rod fixedly connected to the bottom of the drone body, the output rod of the telescopic rod is fixedly connected to the moving block 1, the outer walls on both sides of the moving block 1 are symmetrically rotatably connected to short connecting rods, at least four of the short connecting rods are provided, and one end of each two short connecting rods away from the moving block 1 is rotatably connected to the moving block 2, and at least two of the moving blocks 2 are provided, the bottom of the drone body is fixedly connected to a cavity tube, a clamping block is fixedly connected in the cavity tube, and at least two of the clamping blocks are provided, and a connecting rod is slidably connected in the cavity tube.

[0017] Preferably, the two moving blocks 2 are slidably connected to the cavity tube, the connecting rod is in a "stem" shape, and the connecting rod is fixedly connected to the first aid kit.

[0018] From the 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 servo motor output shaft to rotate counterclockwise. 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 by the clamping column. Compared with the prior art 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 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 of 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 is used to realize that the clamping column leaves the first aid kit inside the first aid kit when the first aid kit lands, which is convenient for the rescue personnel to take it. Compared with the prior art in which the first aid kit is collided in the first aid kit due to the flight of the drone body, the present device releases the first aid kit only when the first aid kit lands, avoiding the first aid kit from repeatedly colliding in the first aid kit and causing damage. In this way, it is ensured that the rescue personnel can use the intact items in the first aid kit for self-rescue after obtaining the first aid kit.

[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 launched 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 door 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 at the bottom of the electrode plate and 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 toward the sky, thereby providing rescue personnel with an accurate search and rescue location. Compared with the prior art method of using the drone navigation function, this avoids the situation where the search and rescue location is blurred due to the inability of the drone to land. This makes it easier for rescue personnel to observe the location of the rescued persons in the dark and quickly implement rescue operations. 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 It is a three-dimensional schematic diagram of the interior of the cavity column shown in the present invention;

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

[0027] Figure 5 It is a cutaway three-dimensional 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 It is an exploded stereoscopic schematic diagram of the connection between the limiting plate and the placement plate shown in the present invention;

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

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

[0033] Fig.11 The present invention shows Fig.10 A partially enlarged stereoscopic schematic diagram of B in the middle;

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

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

[0036] Fig.14 It is a three-dimensional schematic diagram of the interior of the cavity tube shown in the present invention;

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

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

[0039] 1. Drone body; 11. Thermal imager; 2. First aid kit; 21. Parachute; 3. Landing platform example;

[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 plate; 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 lamp; 510, limiting plate; 511, electrode plate;

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

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below 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 also Figures 1 to 15 As shown, an embodiment of the present invention is provided, and an assembled unmanned aerial vehicle search and rescue mechanism is provided and will be described in detail below:

[0045] Embodiment 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 at the bottom of the drone body 1, and 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 no less than two parachutes 21, and the first aid kit 2 is located between the drone body 1 and the landing platform example 3. The interior and bottom of the first aid kit 2 are provided with a trigger fixing component, the outer side of the first aid kit 2 is provided with a lighting component, and the bottom of the drone body 1 is provided with a mounting component;

[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 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, 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 annularly and equidistantly arranged on the surface of the limit plate 46, and at least four limit grooves 47 are provided, a cross slide 48 is fixedly connected inside the first aid box 2, and the cross slide 48 is located above the limit plate 46, a slide plate 49 is slidably connected to the cross slide 48, and at least four slide plates 49 are provided, and the four slide plates 49 are fixedly connected to the limit column 410 on the side close to the limit plate 46, and the limit column 410 is away from the slide plate 4 One end of the first aid kit 2 is located inside the limit groove 47, and a clamping column 411 is inserted on one side of the four slides 49 away from the limit plate 46. A placement plate 412 is fixedly connected inside the first aid kit 2. The clamping column 411 is used to clamp and fix the first aid kit, and make the first aid kit 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. One end of the four clamping columns 411 away from the slide 49 is located inside the moving groove 413. A support leg is fixedly connected to the side of the first aid kit 2 away from the drone body 1, and a collision sensor is arranged 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, and one 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 matches 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 moving groove 413 is matched with the clamping column 411, and the clamping column 411 can be horizontally displaced along the moving 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 machine 52 is fixedly connected to the bottom surface of the first aid box 2, a synchronous wheel 2 5201 is fixedly connected to the input shaft of the speed-increasing gear machine 52, and a bidirectional synchronous wheel 3 5202 is fixedly connected to the output shaft of the speed-increasing gear machine 52. The internal structure characteristics of the speed-increasing gear machine 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 rotatably connected in the first aid box 2, and at least two threaded rods 53 are provided. A guide rail 54 is fixedly connected in the first aid box 2, and at least two groups of guide rails 54 are provided, and at least two guide rails 54 are provided in each group. A slider 55 is slidably connected to each guide rail 54, and a fixing plate 56 is fixedly connected to each guide rail 54. Four A long connecting rod 57 is rotatably connected to the side of the fixed plate 56 away from the slider 55, and an opening and closing plate 58 is rotatably connected to each of the two long connecting rods 57 on the side away from the fixed plate 56. The opening and closing plates 58 are set to be 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 group of guide rails 54 away from the side of the threaded rod 53, and electrical contacts are arranged at the bottom of the two limiting plates 510. An electrode plate 511 is fixedly connected to the slider 55 away from the side of the two threaded rods 53, and the electrical contacts at the bottom of the limiting plate 510 are in contact with the electrode plate 511. When the electrical contacts at the bottom of the limiting plate 510 contact the electrode plate 511, the LED lights 59 on the opening and closing plate 58 are lit.

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

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

[0054] During operation: When the device is lifted off, 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 perform 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. When 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 to make it 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 stretches 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 bottom surface of the inner cavity 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] When the T-shaped column 42 moves downward vertically, the moving 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, so that the photoelectric sensor 44 starts to control the output shaft of the servo motor 45 through the controller and rotates 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, the limit plate 46 is driven 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 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 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 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 off, 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, shorten the preparation time before the drone body 1 takes off, and can adjust the first aid kit 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 away from the side of 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 are downward, and the upper ends rotate and move toward the direction close to the middle of the first aid box 2;

[0064] When the lower end of the opening and closing plate 58 is downward and the upper end is rotated and moved toward the middle of the first aid box 2, the electrode plate 511 leaves the electrical contact at the bottom of the limiting plate 510, and the electrical contact at the bottom of the electrode plate 511 and the limiting plate 510 changes from a contact state to a disengagement state, so that the LED light 59 on the opening and closing plate 58 is turned 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 manually adjust the position of the first aid supplies after putting them in and then close the door, the present device utilizes the T-shaped column 42 to trigger the photoelectric sensor 44 when the first aid kit 2 is lifted into the air, so that the output shaft of the servo motor 45 rotates forward, and the opening and closing plate 58 rotates and moves from the unfolded state to the vertical state and fits the opening of the first aid kit 2, so that the interior of the first aid kit 2 becomes a closed space, which simplifies the operation steps of the rescuers after putting in the rescue supplies, and avoids the first aid kit from falling off during the flight due to the rescuers forgetting to lock it.

[0067] Embodiment 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 a moving block 1 62, the outer walls on both sides of the moving block 1 62 are symmetrically rotatably connected to short connecting rods 63, at least four short connecting rods 63 are provided, and one end of each two short connecting rods 63 away from the moving block 1 62 is rotatably connected to a moving block 2 64, and at least two moving blocks 2 64 are symmetrically provided, and a cavity tube 65 is fixedly connected to the bottom of the drone body 1, and a clamping block 66 is fixedly connected in the cavity tube 65, and at least two clamping blocks 66 are provided, and a connecting rod 67 is slidably connected in the cavity tube 65, and the connecting rod 67 is fitted with the clamping block 66;

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

[0070] When working: when the device searches for the rescued person, 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, and 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, and the two moving blocks 2 64 gradually break away from the inner concave part of the connecting rod 67. When the two moving blocks 2 64 completely break away from the inner concave part of the connecting rod 67, the connecting rod 67 loses its movable The block 2 64 is limited, and the moving block 2 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 an umbrella 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, and the first aid kit is airdropped to the rescue personnel through the free fall of the first aid kit 2;

[0072] When the first aid kit 2 falls on the ground, the supporting legs of the first aid kit 2 are impacted by the ground, so that the collision sensor in the supporting legs will feel the impact. When the collision sensor feels 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 landed, 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 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 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, so that the two opening and closing plates 58 rotate and move in the direction away from the middle of the first aid box 2;

[0076] During the process of the opening and closing plate 58 rotating and moving in the direction 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, and the electrical contact at the bottom of the limiting plate 510 and the electrode plate 511 change from the disengaged state to the contact state, so that the LED light 59 on the opening and closing plate 58 turns on and illuminates;

[0077] As the opening and closing plate 58 rotates and moves in a direction away from the middle of the first aid box 2, the long connecting rod 57 rotates in a direction away from the middle of the first aid box 2 with the rotation connection with the fixed plate 56 as the axis. In this process, the opening and closing plate 58 changes from a vertical state fitted to the open part 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 an 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 unfolded state, and at the same time, the LED light 59 on the opening and closing plate 58 emits bright light to the sky. Compared with the prior art in which the drone can only provide fuzzy coordinates in the dark, the present device utilizes the light from the opening and closing plate 58 to the sky after landing. When the rescuers arrive at the fuzzy coordinate position provided by the drone, the device provides the rescuers with the accurate position 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, the limit plate 46 is driven 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 direction 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 direction 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 may be shaken and damaged in the first aid kit 2 because it is not fixed. In the present 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, and making it convenient for the rescue personnel 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 to make the two moving blocks 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 in this way 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 substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope 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); 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), the output shaft of the servo motor (45) is fixedly connected to a limit plate (46), the surface of the limit plate (46) is provided with limit grooves (47) at equal intervals in an annular manner, and the limit grooves (47) are provided in a number of not less than four, 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 servo motor (45), the output shaft of the servo motor (45) is fixedly connected to a limit plate (46), and the limit grooves (47) are arranged in an annular manner at equal intervals. The limit grooves (47) are provided in a number of not less than four. 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). A placement plate (412) is fixedly connected to the inside of the first aid box (2), and a surface of the placement plate (412) is provided with a circular movable groove (413) at equal intervals. At least four movable grooves (413) are provided. A support leg is fixedly connected to the side of the first aid box (2) away from the drone body (1), and a collision sensor is provided inside the support leg.

2. The assembled unmanned aerial vehicle search and rescue mechanism according to claim 1, characterized in that: A square hole is formed at the bottom of the cavity column (41), the T-shaped column (42) is matched with 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 unmanned aerial vehicle search and rescue mechanism according to claim 1, characterized in that: The limiting grooves (47) are matched with the limiting columns (410), and the shapes of the four limiting grooves (47) are arc-shaped.

4. The assembled unmanned aerial vehicle search and rescue mechanism according to claim 1, characterized in that: The four movable grooves (413) are matched with the four clamping columns (411).

5. The assembled unmanned aerial vehicle search and rescue mechanism according to claim 1, characterized in that: The lighting assembly includes a first synchronous pulley (51) fixedly connected to the output shaft of a servo motor (45). A speed increasing gearbox (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 gearbox (52). A bidirectional third synchronous pulley (5202) is fixedly connected to the output shaft of the speed increasing gearbox (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 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). 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 unmanned aerial vehicle search and rescue mechanism according to claim 5, characterized in that: The first synchronous pulley (51) is in driving connection with the second synchronous pulley (5201). A fourth synchronous pulley (5301) is fixedly connected to the two threaded rods (53). The fourth synchronous pulley (5301) is in driving connection with the second synchronous pulley (5201).

7. The assembled unmanned aerial vehicle 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 in rotational connection with the slider (55).

8. The assembled unmanned aerial vehicle search and rescue mechanism according to claim 1, characterized in that: The mounting assembly 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 unmanned aerial vehicle 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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