Low altitude flight economic post-disaster rescue unmanned aerial vehicle life detector support
By designing a life detector bracket for low-altitude drones, the problem of drones being unable to deliver supplies synchronously was solved, enabling rapid delivery of supplies and timely replenishment of affected people during disaster relief, thus improving rescue efficiency and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING WEIHANG TECHNOLOGY CO LTD
- Filing Date
- 2025-08-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing drone-based life detection devices are unable to simultaneously deliver supplies during disaster relief efforts, causing affected individuals to experience physical decline due to prolonged waiting and making it impossible for them to obtain food supplies in a timely manner.
A life detector bracket for a disaster relief drone designed for low-altitude flight includes a food box, a rotating plate, a gear transmission structure, and a cylinder drive system, enabling rapid opening and closing of the food box and delivery of supplies.
This technology enables drones to simultaneously deliver supplies after detecting disaster victims, improving rescue efficiency, reducing the probability of supplies being damaged, and ensuring that disaster victims can obtain food supplies in a timely manner.
Smart Images

Figure CN224409608U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disaster relief, and more specifically, to a life detector bracket for a disaster relief drone used in low-altitude flight. Background Technology
[0002] Following natural disasters such as earthquakes and floods, rapidly locating signs of life in affected areas and promptly delivering relief supplies are crucial aspects of post-disaster relief. In traditional disaster relief, ground search and rescue personnel are limited by terrain, transportation, and other factors, making it difficult to quickly penetrate the core disaster areas, resulting in low efficiency in life detection. Therefore, it is necessary to use drones equipped with life detectors for search and rescue.
[0003] In the prior art, such as Chinese patent "CN217689380U", a "life detection device for unmanned aerial vehicles" is proposed, which includes a mounting frame and a radar life detector. Two traction mechanisms are symmetrically arranged on the side of the mounting frame. The radar life detector has an electric push rod on its periphery that corresponds to the traction mechanism. The top of the electric push rod is connected to the traction mechanism. The bottom of the electric push rod has an attitude adjustment component for controlling the attitude of the radar life detector. The attitude adjustment component includes a base installed at the bottom of the electric push rod. Both ends of the base are rotatably equipped with support legs.
[0004] However, in the aforementioned patent, although the drone is equipped with a radar life detector to detect the location of the disaster victims, it can only transmit the signal to the ground search and rescue personnel and cannot simultaneously carry out the delivery of supplies. This "detection-delivery" separation operation mode causes the trapped people to suffer from a continuous decline in physical function due to being trapped for a long time and lacking food supplies while waiting for rescue, and even to the point that they are unable to respond to rescue due to physical exhaustion. Utility Model Content
[0005] 1. Technical problems to be solved
[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a life detector bracket for disaster relief drones used in low-altitude flight economy, which can realize the function of rapid material delivery.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution.
[0009] A life detector bracket for a disaster relief drone used in low-altitude flight economy includes a drone and a bracket. The bracket is bolted to the bottom of the drone. A food box is welded to the center of the bottom of the bracket. Two rotating plates are rotatably connected to both sides of the food box via bearings. A baffle is fixed between each pair of rotating plates by screws. Both baffles are arc-shaped. Gears are connected to the top of each of the four rotating plates. The four gears mesh in pairs to form a transmission structure. The bottom of the food box has an arc-shaped structure. The two baffles are slidably connected to the bottom of the food box via sliders and sliding grooves.
[0010] Furthermore, each of the two rotating plates is rotatably connected to a cylinder via a pin, and the output ends of the two cylinders are rotatably connected to another rotating plate on the same side via pins. The cylinders can drive the rotating plates to open and close the baffles.
[0011] Furthermore, a door is rotatably connected to one side of the food box via a hinge, and a handle is bolted to one side of the door. Limiting holes for limiting the position are provided on both sides of the handle.
[0012] Furthermore, two mounting blocks are fixedly connected to one side of the food box, and the box door and handle are both located between the two mounting blocks.
[0013] Furthermore, each of the two mounting blocks has a sliding groove inside, and a sliding rod is slidably connected in the sliding groove. One end of each of the two sliding rods is respectively engaged inside the two limiting holes. A spring is fixedly connected to the outer wall of each of the two sliding rods. Each of the two springs is sleeved on the outside of the sliding rod and its two ends are fixed to the mounting block and the sliding rod respectively.
[0014] Furthermore, each of the two sliding rods has a handle fixedly connected to one end outside the mounting block, and the handle surface is provided with anti-slip texture.
[0015] Furthermore, two landing rods are bolted to the bottom of the support, and the bottom of the landing rods is equipped with a buffer rubber pad. A life detector is fixedly connected to the lower middle part of one side of the support.
[0016] 3. Beneficial effects
[0017] Compared with existing technologies, the advantages of this utility model are:
[0018] (1) In this scheme, when the drone arrives above the target area, the operator starts the cylinder, and its output end pushes the rotating plate to rotate through the pin shaft. Because the gears on the four rotating plates mesh in pairs, the rotating plates on both sides rotate synchronously, causing the baffle to slide and unfold along the arc-shaped structure below the food box, forming a material delivery channel to realize the delivery of materials in the food box.
[0019] (2) In this scheme, the food box is rotatably connected to the box door on one side, and the handle is provided with limit holes on both sides. The sliding rod inside the mounting block is engaged with the limit holes, and the spring provides the reset force to form a locking structure, which makes it convenient for search and rescue personnel to open and close the box door to load food, and prevents the box door from being opened accidentally during flight. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of the bracket of this utility model;
[0022] Figure 3 For this Figure 2 Enlarged structural diagram of region A in the middle;
[0023] Figure 4 For this Figure 2 A magnified structural diagram of region B in the middle;
[0024] Figure 5 This is a schematic diagram showing the connection between the cabinet door and the food box in this utility model.
[0025] Explanation of the labels in the diagram:
[0026] 1. Drone; 11. Support frame; 12. Food box; 13. Rotating plate; 14. Baffle; 15. Gear; 16. Cylinder; 17. Life detector; 18. Box door; 19. Handle; 2. Limiting hole; 21. Mounting block; 22. Sliding rod; 23. Spring; 24. Handle; 25. Landing rod. Detailed Implementation
[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] Example 1:
[0031] Please see Figure 1-5 A life detector bracket for a disaster relief drone used in low-altitude flight economy includes a drone 1 and a bracket 11. The bracket 11 is fixedly connected to the lower part of the drone 1. A food box 12 is fixedly connected to the middle of the lower part of the bracket 11. Two rotating plates 13 are rotatably connected to both sides of the food box 12. A baffle 14 is fixedly connected between each pair of rotating plates 13. Both baffles 14 are arc-shaped. Gears 15 are fixedly connected to the top of each of the four rotating plates 13. The four gears 15 mesh in pairs. The lower part of the food box 12 has an arc-shaped structure. The two baffles 14 are slidably connected to the lower part of the food box 12. A cylinder 16 is rotatably connected to one side of each of the two rotating plates 13. The output end of each of the two cylinders 16 is rotatably connected to the other rotating plate 13 on the same side.
[0032] In this embodiment, the bracket 11 is fixed to the drone 1 with bolts, and a food box 12 is welded to the lower center to form a stable load-bearing center. The two sides of the food box 12 are rotatably connected to the rotating plates 13 through bearings. The rotating plates 13 are fixed with screws to the arc-shaped baffles 14. The gears 15 on the four rotating plates 13 mesh in pairs, so that the baffles 14 and the arc-shaped structure below the food box 12 can slide together through the slider groove to form a closed protective space, which effectively reduces the situation of food scattering due to shaking when the drone is flying. It is suitable for material transportation in complex airflow environments after disasters.
[0033] One side of the rotating plate 13 is rotatably connected to the cylinder 16 via a pin. The output end of the cylinder 16 is also connected to the other rotating plate 13 on the same side via a pin. When the cylinder 16 is driven, it can drive the rotating plate 13 to rotate. With the help of the gear 15, the baffles 14 on both sides open and close synchronously. When the drone arrives at the designated drop point, the cylinder 16 extends and retracts to unfold the baffles 14. With the help of the arc guide under the food box 12, the supplies are released slowly and at a fixed point, reducing the probability of the supplies being damaged by impact in traditional airdrops and improving the effective utilization rate of disaster relief supplies.
[0034] Example 2:
[0035] Please see Figure 1-5A life detector bracket for a disaster relief drone used in low-altitude flight economy. A door 18 is rotatably connected to one side of a food box 12. A handle 19 is fixedly connected to one side of the door 18. Limiting holes 2 are opened on both sides of the handle 19. Two mounting blocks 21 are fixedly connected to one side of the food box 12. The door 18 and the handle 19 are both located between the two mounting blocks 21. Sliding rods 22 are slidably connected inside the two mounting blocks 21. One end of the two sliding rods 22 is respectively engaged inside the two limiting holes 2. Springs 23 are fixedly connected to the outer walls of the two sliding rods 22. The two springs 23 are sleeved on the outside of the two sliding rods 22. A handle 24 is fixedly connected to the end of the two sliding rods 22 located outside the mounting blocks 21. Two landing rods 25 are fixedly connected to the bottom of the bracket 11. A life detector 17 is fixedly connected to the lower middle part of one side of the bracket 11.
[0036] In this embodiment, rescue personnel pull the sliding rod 22 outward by holding the handle 24, compressing the spring 23 to disengage it from the limiting holes 2 on both sides of the handle 19, thus releasing the locked state of the box door 18. Then, the box door 18 is rotated around the hinge to open the food box 12 for loading food. After loading, the box door 18 is rotated in the opposite direction to close it. The handle 24 is released, the spring 23 returns to its original position, and pushes the sliding rod 22 into the limiting hole 2, thus locking the box door 18. The life detector 17 can scan ground life signals in real time and guide the drone to accurately locate the disaster area.
[0037] Working principle: The life detector 17 is fixed to the lower middle part of one side of the bracket 11. It emits electromagnetic waves or infrared signals in real time through the built-in sensor array to scan the ground area. When the signal comes into contact with a living organism such as a human body, it will form a reflected echo due to the weak vibration or temperature difference caused by life activities such as breathing and heartbeat. After receiving the echo, the life detector 17 analyzes the frequency, intensity and phase changes of the echo through the signal processing module and compares it with the built-in life characteristic database to identify whether there are signs of life.
[0038] After detecting a life signal, the life detector 17 transmits the location data to the drone's flight control system. The control system, combined with the drone's own GPS positioning information, calculates the specific location and distance of the life signal. Subsequently, the flight control system adjusts the drone's flight parameters, including flight direction, speed, and altitude, to guide the drone towards the disaster area. During the flight, the life detector 17 continuously scans and updates the positioning data in real time to ensure that the drone always approaches the target area along the optimal path. When the drone reaches above the target area, the operator can activate the cylinder 16 through the remote control system. The output end of the cylinder 16 pushes the rotating plate 13 to rotate through the pin shaft. Since the gears 15 on the four rotating plates 13 mesh in pairs, the rotating plates 13 on both sides will rotate synchronously, causing the baffle 14 to slide and unfold along the arc-shaped structure below the food box 12, forming a material delivery channel so that the materials in the food box 12 can be delivered to the disaster area.
[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A life detector bracket for a disaster relief drone used in low-altitude flight economy, comprising a drone (1) and a bracket (11), characterized in that: The bracket (11) is fixedly connected to the bottom of the drone (1). A food box (12) is fixedly connected to the middle of the bottom of the bracket (11). Two rotating plates (13) are rotatably connected to both sides of the food box (12). A baffle (14) is fixedly connected between each pair of rotating plates (13). Both baffles (14) are arc-shaped. Gears (15) are fixedly connected to the top of each of the four rotating plates (13). The four gears (15) mesh in pairs. The bottom of the food box (12) is arc-shaped. The two baffles (14) are slidably connected to the bottom of the food box (12).
2. The life detector bracket for low-altitude flight economic disaster relief UAVs as described in claim 1, characterized in that: A cylinder (16) is rotatably connected to one side of each of the two rotating plates (13), and the output ends of the two cylinders (16) are rotatably connected to the other rotating plate (13) on the same side.
3. The life detector bracket for low-altitude flight economic disaster relief UAVs as described in claim 1, characterized in that: The food box (12) is rotatably connected to a door (18) on one side. A handle (19) is fixedly connected to one side of the door (18). Limiting holes (2) are provided on both sides of the handle (19).
4. The life detector bracket for low-altitude flight economic disaster relief UAVs as described in claim 3, characterized in that: Two mounting blocks (21) are fixedly connected to one side of the food box (12), and the box door (18) and handle (19) are both located between the two mounting blocks (21).
5. The life detector bracket for low-altitude flight economic disaster relief UAVs as described in claim 4, characterized in that: Both mounting blocks (21) are slidably connected to sliding rods (22), one end of each sliding rod (22) is respectively engaged inside the two limiting holes (2), and springs (23) are fixedly connected to the outer walls of each sliding rod (22), and the two springs (23) are sleeved on the outside of the two sliding rods (22).
6. The life detector bracket for low-altitude flight economic disaster relief UAVs as described in claim 5, characterized in that: Each of the two sliding rods (22) has a handle (24) fixedly connected to one end outside the mounting block (21).
7. The life detector bracket for a disaster relief UAV used in low-altitude flight economy according to claim 1, characterized in that: Two landing poles (25) are fixedly connected to the lower part of the support (11), and a life detector (17) is fixedly connected to the lower part of the middle of one side of the support (11).