Rescue article putting device and method for unmanned aerial vehicle rescue

Abstract

The invention discloses a rescue article throwing device and method for unmanned aerial vehicle rescue, the rescue article throwing device for unmanned aerial vehicle rescue is applied to an unmanned aerial vehicle, the rescue article throwing device for unmanned aerial vehicle rescue comprises a bottom frame, and further comprises a rotating shaft, a plurality of storage boxes, an opening and closing assembly and a driving mechanism, the rotating shaft is rotatably arranged below the unmanned aerial vehicle, and the opening and closing assembly is arranged on the rotating shaft; the multiple storage boxes are rotationally connected to the rotating shaft at equal angles through the rotating frame and used for storing rescue articles, the opening and closing assembly is used for opening and closing the bottoms of the storage boxes and comprises two opening and closing plates and limiting plates, the opening and closing plates are slidably mounted at the bottoms of the storage boxes, and the driving mechanism is used for driving the opening and closing assembly to be opened and closed. The problems that in the prior art, when a rope is used for transporting objects, shaking is likely to be generated, and meanwhile when multiple rescue objects are carried, the unmanned aerial vehicle is unbalanced after a single object is put are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle delivery, and in particular to a rescue article delivery device and method for unmanned aerial vehicle rescue. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV", is an unmanned aircraft controlled by radio remote control equipment and self-contained program control device, or operated completely or intermittently autonomously by an onboard computer. Compared with manned aircraft, it has the advantages of small size, low cost, easy use, low requirements for the combat environment, and strong battlefield survivability. It can be used for the delivery of rescue supplies.

[0003] At present, drones use ropes to tow and lift rescue items, and after transporting them to the designated location, the rescue items are separated from the ropes, or the ropes are separated from the drone together. The ropes are made of flexible materials, and the rescue items will shake during the take-off and landing of the drone and the flight process, affecting the flight stability of the drone, and there is a possibility of entanglement, causing damage to the drone. If the drone carries multiple rescue items, when one item is dropped at a time, the drone will rise due to sudden weightlessness, and the overall center of gravity will change after the single item is dropped, causing the drone to tilt, affecting the normal delivery of rescue items and reducing safety. Therefore, we propose a rescue item delivery device and method for drone rescue, which can stably deliver rescue items and ensure the stability of the drone during the delivery process. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a device and method for delivering rescue items for drone rescue, so as to solve the problem that the prior art uses ropes to transport items, which is prone to shaking, and when carrying multiple rescue items, the drone becomes unbalanced after delivering a single item.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A rescue article delivery device for unmanned aerial vehicle rescue, applied to a unmanned aerial vehicle, comprises a chassis, and also comprises:

[0009] A rotating shaft, the rotating shaft is rotatably disposed below the drone;

[0010] A storage box, wherein a plurality of the storage boxes are provided, and the plurality of storage boxes are connected to the rotating shaft by rotating frames at equal angles, and are used for storing rescue items;

[0011] An opening and closing component, the opening and closing component is used to open and close the bottom of the storage box, and the opening and closing component includes:

[0012] An opening and closing plate, two of which are provided and slidably mounted on the bottom of the storage box;

[0013] A limit plate, the limit plate is slidably connected to the storage box, the limit plate is in contact with the opening and closing plate, and is used to limit the opening and closing plate;

[0014] A driving mechanism, the driving mechanism is used to drive the opening and closing component to open and close, and the driving mechanism includes:

[0015] A movable seat, the movable seat being movably arranged on the base frame;

[0016] A traction frame is liftably arranged on the movable seat, a pulling block is fixedly connected to the bottom end of the opening and closing plate, and the traction frame and the pulling block are in sliding cooperation.

[0017] In order to drive the limit plate to rise and fall, a push-pull frame is slidably connected to the movable seat, the push-pull frame is fixedly connected to the traction frame, a lifting block is fixedly connected to the limit plate, and the lifting block and the push-pull frame are in sliding cooperation.

[0018] In order to limit the position of the rescue items, a limiting component is also included, and the limiting component moves synchronously with the opening and closing plate to limit the position of the rescue items. The limiting component includes:

[0019] A fixing seat, wherein a plurality of fixing seats are provided, the fixing seats are fixedly connected to the opening and closing plate through a connecting frame, and a plurality of sliding holes matching the fixing seats are provided on the storage box;

[0020] A moving rod, a telescopic slot is provided on the fixing seat, the moving rod is slidably connected inside the telescopic slot, and the moving rod is connected to the inner wall of the telescopic slot through a spring.

[0021] In order to close the top of the storage box, a cover structure is also included, and the cover structure is used to cover the top of the storage box. The cover structure includes:

[0022] A cover plate, the cover plate being rotatably connected to the storage box;

[0023] A card block is fixedly connected to the storage box through an elastic plate, the card block is wedge-shaped, and the bottom end of the card block contacts the top end of the cover plate.

[0024] In order to facilitate the falling of the rescued items, one end of the moving rod away from the fixing seat is rotatably connected with a ball, and the ball contacts the rescued items.

[0025] A method for delivering rescue items for drone rescue, using the above-mentioned device for delivering rescue items for drone rescue, comprises the following steps:

[0026] S1. Open the cover and put the rescue items into the storage box;

[0027] S2. The drone drives the storage box to rise, flies to the designated location, and rotates the storage box to be released to the lowest position;

[0028] S3, the moving seat moves to the bottom of the storage box, the lifting block slides into the interior of the push-pull frame, the traction frame and the push-pull frame rise, the pulling block extends into the interior of the traction frame, and the push-pull frame drives the limit plate to rise;

[0029] S4, the moving seat drives the opening and closing plate to move, opening the bottom of the storage box to allow the rescue items to fall down;

[0030] S5. The rotating shaft drives the subsequent storage box to rotate to the lowest position to place the subsequent rescue items.

[0031] (III) Beneficial effects

[0032] Compared with the prior art, the present invention provides a device and method for delivering rescue items for unmanned aerial vehicle rescue, which has the following beneficial effects:

[0033] 1. In the present invention, multiple rescue items can be stored through multiple storage boxes, and the multiple storage boxes are driven to rotate by the rotating shaft, so that the rescue items to be delivered are at the lowest position, that is, the vertical position corresponding to the center of gravity of the drone. After the items are delivered, the drone is still in a stable state.

[0034] 2. In the present invention, the traction frame and the push-pull frame are lifted and lowered synchronously. When the traction frame rises, it clamps with the pulling block, which can drive the opening and closing plate to move, and open and close the storage box. The rising of the push-pull frame can drive the limit plate to rise, release the limit on the opening and closing plate, and allow the opening and closing plate to move freely. After the traction frame drives the opening and closing plate to close, the traction frame descends away from the pulling block, and the push-pull frame drives the limit plate to descend, limits the opening and closing plate, and ensures the stability of the opening and closing plate.

[0035] 3. In the present invention, the fixed seat moves with the opening and closing plate. When the opening and closing plate is in a closed state, the fixed seat and the moving rod extend into the interior of the storage box. The moving rod is pressed against the surface of the rescue item by a spring to limit the rescue item and reduce the shaking of the rescue item during transportation. When the opening and closing plate is opened, the fixed seat is away from the rescue item, and the resistance to the falling of the rescue item is reduced by the rotation of the ball.

[0036] 4. Therefore, compared with the drone rescue item delivery device in the prior art, the present invention can transport and deliver multiple rescue items by setting up multiple storage boxes, and reduces the shaking of rescue items during the flight of the drone by replacing ropes with rotating shafts, rotating frames and storage boxes, while avoiding the risk of rope entanglement. The storage box containing the rescue items to be delivered is rotated to the bottom through the rotating shaft, and the traction frame and the pulling block are driven to move by the moving seat, and the opening and closing plate is pulled to open and close the storage box to achieve the delivery of rescue items. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural diagram of the first perspective of this application;

[0038] Figure 2 This is a structural diagram of the second viewing angle of this application;

[0039] Figure 3 This is a schematic diagram of the structure of the rotating shaft, storage box, opening and closing assembly and driving mechanism of this application;

[0040] Figure 4 This is a schematic diagram of the structure of the storage box, the cover structure and the limit assembly of this application;

[0041] Figure 5 This is a schematic diagram of the structure of the opening and closing component, the driving mechanism and the limiting component of this application;

[0042] Figure 6 This is a schematic diagram of the structure of the driving mechanism of this application;

[0043] Figure 7 For this application Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0044] Figure 8 For this application Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0045] Fig. 9 For this application Figure 2 A schematic diagram of the local enlarged structure at C in the middle;

[0046] Fig.10 For this application Figure 5 Schematic diagram of the local enlarged structure at point D in the middle.

[0047] In the figure:

[0048] 1. UAV; 2. chassis; 3. rotating shaft; 4. storage box; 5. fixed frame; 6. driven gear; 7. electric cylinder 1; 8. driving rack; 9. rotating frame;

[0049] 101, cover plate; 102, clamping block; 103, elastic plate;

[0050] 201, opening and closing plate; 202, limiting plate;

[0051] 301, moving seat; 302, traction frame; 303, electric cylinder 2; 304, electric cylinder 3; 305, pulling block; 306, push-pull frame; 307, lifting block;

[0052] 401, fixed seat; 402, moving rod; 403, spring; 404, ball. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] For example, see Figures 1 to 10 A rescue item delivery device for unmanned aerial vehicle rescue is applied to a unmanned aerial vehicle 1, including a base frame 2, the base frame 2 is in contact with the ground to support the unmanned aerial vehicle 1, and also includes a rotating shaft 3, a storage box 4, an opening and closing component and a driving mechanism. Compared with the unmanned aerial vehicle rescue item delivery device in the prior art, the present invention can transport and deliver multiple rescue items by setting a plurality of storage boxes 4. The rotating shaft 3, the rotating frame 9 and the storage box 4 are used to replace the rope, thereby reducing the shaking of the rescue items during the flight of the unmanned aerial vehicle 1 and avoiding the risk of rope entanglement. The storage box 4 containing the rescue items to be delivered is rotated to the bottom by the rotating shaft 3, the traction frame 302 and the pulling block 305 are driven to move by the moving seat 301, and the opening and closing plate 201 is pulled to open and close the storage box 4 to achieve the delivery of the rescue items.

[0055] The rotating shaft 3 is rotatably arranged below the UAV 1. The UAV 1 is fixedly connected to a fixing frame 5. The rotating shaft 3 is rotatably connected to the fixing frame 5. The base frame 2 is fixedly connected to the fixing frame 5. One end of the rotating shaft 3 is coaxially fixedly connected to a driven gear 6. An electric cylinder 7 is fixedly installed on the fixing frame 5. The output end of the electric cylinder 7 is fixedly connected to a driving rack 8. The driven gear 6 and the driving rack 8 are meshed. A plurality of storage boxes 4 are arranged. The plurality of storage boxes 4 are rotatably connected to the rotating shaft 3 at equal angles through a rotating frame 9 for storing rescue items. The rotating frame 9 is fixedly connected to the rotating shaft 3 at equal angles. The upper position of the storage box 4 is rotatably connected to the rotating frame 9, and the rescue items are placed inside the storage box 4. Different storage boxes 4 can be placed with different rescue items. The electric cylinder 7 can drive the drive rack 8 to move, thereby driving the driven gear 6 and the rotating shaft 3 to rotate, so that the storage box 4 rotates around the rotating shaft 3. The upper position of the storage box 4 is rotatably connected to the rotating frame 9, so the storage box 4 is always in a vertical state during the rotation process under the action of gravity. The rotation of the rotating shaft 3 can make multiple storage boxes 4 in a relatively balanced state during the flight of the drone 1, for example Figure 3 There are five storage boxes 4, when rescue items are stored in one storage box 4 or rescue items are placed in all storage boxes 4 or no rescue items are placed, Figure 3 As shown, if one storage box 4 is located at the bottom, the five storage boxes 4 are in a relatively balanced state. When rescue items are stored in two storage boxes 4, the two storage boxes 4 storing the rescue items are rotated to the bottom and are at the same horizontal position. If rescue items are stored in three storage boxes 4, the rescue items are placed in three adjacent storage boxes 4, so that the storage box 4 in the middle position is located at the bottom, that is, the multiple storage boxes 4 are placed as balanced as possible, so that the work done by the drone 1 to maintain balance during flight is reduced, and the drone 1 flies smoothly. In addition, by rotating the storage box 4 containing the rescue items to be delivered to the bottom position for delivery, the imbalance caused by sudden weightlessness is reduced, which facilitates the drone 1 to react quickly and regain balance.

[0056] In order to close the top of the storage box 4, a sealing structure is also included. The sealing structure is used to seal the top of the storage box 4. The sealing structure includes a cover plate 101 and a clamping block 102. The cover plate 101 is rotatably connected to the storage box 4. The clamping block 102 is fixedly connected to the storage box 4 through an elastic plate 103. The clamping block 102 is wedge-shaped. The bottom end of the clamping block 102 contacts the top end of the cover plate 101. Closing the cover plate 101 can close the top opening of the storage box 4. The cover plate 101 is limited by the clamping block 102 to avoid storage When the rescue items inside the box 4 fall from the top and the cover 101 needs to be opened, the card block 102 is pushed to make the elastic plate 103 bend outward, and the card block 102 is away from the cover 101, and the cover 101 can be opened. During the closing process of the cover 101, the upper part of the card block 102 comes into contact with the cover 101, and the cover 101 is pressed to bend the elastic plate 103, so that the cover 101 and the top of the storage box 4 are tightly attached, and the card block 102 rebounds to its original position under the action of the elastic plate 103, limiting the cover 101 and ensuring the stability of the cover 101.

[0057] The opening and closing assembly is used to open and close the bottom of the storage box 4. The opening and closing assembly includes an opening and closing plate 201 and a limiting plate 202. Two opening and closing plates 201 are provided. The opening and closing plate 201 is slidably installed at the bottom of the storage box 4. The limiting plate 202 is slidably connected to the storage box 4. The limiting plate 202 contacts the opening and closing plate 201 and is used to limit the opening and closing plate 201. The limiting plate 202 is fixedly connected with a slider. The storage box 4 is provided with a slide groove matching the slider. The driving mechanism is used to drive the opening and closing assembly to open and close. The driving mechanism includes a moving seat 301 and a traction frame 302. The moving seat 301 is movably arranged on the base frame 2. The base frame 2 is fixedly installed with an electric cylinder 2 303. The moving seat 301 is fixedly connected to the output end of the electric cylinder 2 303. The traction frame 302 The lifting device is arranged on the movable seat 301, and the movable seat 301 is fixedly installed with an electric cylinder three 304, and the traction frame 302 is arranged at the output end of the electric cylinder three 304. The bottom end of the opening and closing plate 201 is fixedly connected with a pulling block 305, and the traction frame 302 and the pulling block 305 are in sliding cooperation. In order to drive the limit plate 202 to rise and fall, the movable seat 301 is slidably connected with a push-pull frame 306, and the push-pull frame 306 is fixedly connected to the traction frame 302. A lifting block 307 is fixedly connected to the limit plate 202, and the lifting block 307 and the push-pull frame 306 are in sliding cooperation. When the storage box 4 rotates to the lowest position, that is, the placement position, the initial limiting plate 202 is at the bottom to limit the opening and closing plate 201, and the movable seat 301 can be driven to move by the electric cylinder two 303. The movable seat 301 moves to the bottom of the storage box 4 at the bottom. During this process, the movable seat 301 drives the push-pull frame 306 to clamp the lifting block 307. The electric cylinder three 304 drives the traction frame 302 and the push-pull frame 306 to rise, so that the traction frame 302 can clamp the pulling block 305. The push-pull frame 306 pushes the lifting block 307 and the limiting plate 202 to rise, and the limit on the opening and closing plate 201 is released. Then the electric cylinder two 303 drives the movable seat 301, the traction frame 302 and the push-pull frame 306 away from the storage box 4, and the traction frame 302 drives the pulling block 305 and the opening and closing plate 201 to move to a position away from the storage box 4, opening the storage box 4, so that the rescue items in the storage box 4 fall from the bottom of the storage box 4, and the rescue items are delivered. , then the electric cylinder 2 303 drives the moving seat 301 to move to the bottom of the storage box 4, so that the opening and closing plate 201 closes the bottom of the storage box 4 again, and the push-pull frame 306 clamps the lifting block 307, and then the electric cylinder 304 drives the traction frame 302 and the push-pull frame 306 to descend, the traction frame 302 and the pulling block 305 are separated, and the push-pull frame 306 drives the limiting plate 202 to descend to limit the opening and closing plate 201 to ensure the stability of the opening and closing plate 201, and continue to rotate other storage boxes 4 to the lowest position, repeat the above steps to deliver rescue items, there is a certain sliding damping between the slider and the slide groove, after the push-pull frame 306 pushes the lifting block 307 to drive the limiting plate 202 to rise and fall, the limiting plate 202 is in a stable position,To facilitate the re-clamping of the push-pull frame 306 and the lifting block 307, chamfers are provided on the traction frame 302 and the lifting frame to facilitate the insertion of the pulling block 305 and the lifting block 307.

[0058] In order to limit the rescue items, a limit assembly is also included. The limit assembly moves synchronously with the opening and closing plate 201 and is used to limit the rescue items. The limit assembly includes a fixed seat 401 and a moving rod 402. The fixed seat 401 is provided with multiple, and the fixed seat 401 is fixedly connected to the opening and closing plate 201 through a connecting frame. The storage box 4 is provided with multiple sliding holes matching the fixed seat 401, and the fixed seat 401 is provided with a telescopic groove. The moving rod 402 is slidably connected to the inside of the telescopic groove. The moving rod 402 is connected to the inner wall of the telescopic groove through a spring 403. When the opening and closing plate 201 closes the storage box 4, the moving rod 402 and part of the fixed seat 401 are located at the storage box 4. Inside, under the action of spring 403, moving rod 402 is pressed against the surface of the rescue item, limiting the position of the rescue item to ensure its stability during transportation, avoiding its shaking inside the storage box 4 and affecting the balance of the flight of the drone 1; when the opening and closing plate 201 is opened, the fixed seat 401 is away from the rescue item, reducing the pressure of the moving rod 402 on the rescue item, causing the rescue item to fall and be released; at the same time, to facilitate the falling of the rescue item, the end of the moving rod 402 away from the fixed seat 401 is rotatably connected to a ball 404, and the ball 404 is in contact with the rescue item, and the rotation of the ball 404 further reduces the resistance to the falling of the rescue item, facilitating the release of the rescue item.

[0059] It should be noted that electric cylinder 1 7, electric cylinder 2 303 and electric cylinder 3 304 are all provided with matching remote control switches. When the operator controls the flight of the drone 1, the opening and closing and moving distance of electric cylinder 1 7, electric cylinder 2 303 and electric cylinder 3 304 can also be controlled. Moreover, the remote control switches and controllers of electric cylinder 1 7, electric cylinder 2 303 and electric cylinder 3 304 are independent of the controller and circuit of the drone 1 itself and will not affect the drone 1 system itself. By reasonably controlling the placement position and delivery order of rescue items, the remaining storage boxes 4 are kept in a balanced state as much as possible during the delivery of rescue items, thereby reducing the imbalance of the drone 1 when delivering rescue items and facilitating the drone 1 to quickly adjust its flight state.

[0060] Embodiment 2: This embodiment further discloses a method for delivering rescue items for drone rescue, using a device for delivering rescue items for drone rescue in embodiment 1, including the following steps:

[0061] S1, open the cover 101, put the rescue items into the storage box 4, and reasonably distribute the weight of the rescue items when placing the rescue items, so that the multiple storage boxes 4 tend to be in a balanced state;

[0062] S2, the drone 1 drives the storage box 4 to rise, flies to the designated position, and rotates the storage box 4 to be dropped to the lowest position;

[0063] S3, the moving seat 301 moves to the bottom of the storage box 4, the lifting block 307 slides into the push-pull frame 306, the traction frame 302 and the push-pull frame 306 rise, the pulling block 305 extends into the traction frame 302, and the push-pull frame 306 drives the limit plate 202 to rise;

[0064] S4, the moving seat 301 drives the opening and closing plate 201 to move, opening the bottom of the storage box 4, so that the rescue items fall down;

[0065] S5, the rotating shaft 3 drives the subsequent storage box 4 to rotate to the lowest position to place the subsequent rescue items.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rescue item delivery device for unmanned aerial vehicle rescue, applied to an unmanned aerial vehicle (1), comprising a chassis (2), characterized in that: Also includes: A rotating shaft (3), the rotating shaft (3) being rotatably arranged below the drone (1); A storage box (4), wherein a plurality of the storage boxes (4) are provided, and the plurality of storage boxes (4) are connected to the rotating shaft (3) by rotating a rotating frame (9) at equal angles, and are used for storing rescue items; An opening and closing component, the opening and closing component is used to open and close the bottom of the storage box (4); A driving mechanism is used to drive the opening and closing component to open and close.

2. The rescue item delivery device for unmanned aerial vehicle rescue according to claim 1, characterized in that: The opening and closing assembly comprises: An opening and closing plate (201), two of which are provided, and the opening and closing plates (201) are slidably mounted on the bottom of the storage box (4); A limiting plate (202), the limiting plate (202) is slidably connected to the storage box (4), the limiting plate (202) is in contact with the opening and closing plate (201), and is used to limit the opening and closing plate (201).

3. The rescue article delivery device for unmanned aerial vehicle rescue according to claim 2, characterized in that: The driving mechanism comprises: A movable seat (301), wherein the movable seat (301) is movably arranged on the base frame (2); A traction frame (302) is movably arranged on the movable seat (301); a pulling block (305) is fixedly connected to the bottom end of the opening and closing plate (201); and the traction frame (302) and the pulling block (305) are in sliding cooperation.

4. The rescue article delivery device for unmanned aerial vehicle rescue according to claim 3, characterized in that: A push-pull frame (306) is slidably connected to the movable seat (301), the push-pull frame (306) is fixedly connected to the traction frame (302), a lifting block (307) is fixedly connected to the limit plate (202), and the lifting block (307) and the push-pull frame (306) are in sliding cooperation.

5. The rescue article delivery device for unmanned aerial vehicle rescue according to claim 4, characterized in that: It also includes a limiting component, which moves synchronously with the opening and closing plate (201) and is used to limit the position of the rescue object. The limiting component includes: A fixing seat (401), wherein a plurality of the fixing seats (401) are provided, wherein the fixing seats (401) are fixedly connected to the opening and closing plate (201) via a connecting frame, and the storage box (4) is provided with a plurality of sliding holes matching the fixing seats (401); A moving rod (402), a telescopic slot is provided on the fixing seat (401), the moving rod (402) is slidably connected inside the telescopic slot, and the moving rod (402) is connected to the inner wall of the telescopic slot via a spring (403).

6. The rescue article delivery device for unmanned aerial vehicle rescue according to claim 5, characterized in that: It also includes a cover structure, which is used to cover the top of the storage box (4), and the cover structure includes: A cover plate (101), the cover plate (101) being rotatably connected to the storage box (4); A card block (102), the card block (102) is fixedly connected to the storage box (4) via an elastic plate (103), the card block (102) is wedge-shaped, and the bottom end of the card block (102) is in contact with the top end of the cover plate (101).

7. The rescue article delivery device for unmanned aerial vehicle rescue according to claim 6, characterized in that: One end of the moving rod (402) away from the fixing seat (401) is rotatably connected to a ball (404), and the ball (404) is in contact with the rescue object.

8. A method for delivering rescue items for drone rescue, using the device and method for delivering rescue items for drone rescue as claimed in claim 7, characterized in that: The following steps are involved: S1, opening the cover plate (101) and placing the rescue items into the storage box (4); S2, the drone (1) drives the storage box (4) to rise, flies to a designated position, and rotates the storage box (4) to be dropped to the lowest position; S3, the movable seat (301) moves to the bottom of the storage box (4), the lifting block (307) slides into the interior of the push-pull frame (306), the traction frame (302) and the push-pull frame (306) rise, the pulling block (305) extends into the interior of the traction frame (302), and the push-pull frame (306) drives the limit plate (202) to rise; S4, the moving seat (301) drives the opening and closing plate (201) to move, opening the bottom of the storage box (4) to allow the rescue items to fall down; S5, the rotating shaft (3) drives the subsequent storage box (4) to rotate to the lowest position to place the subsequent rescue items.

Images