A drone for river rescue
By integrating an inflation mechanism and lifebuoy components onto a drone, using a two-way air pump to control the airbag to float on the water surface for monitoring, and using lidar and cameras to identify trapped individuals, combined with the instantaneous inflation of the lifebuoy by lowering the retractable base, the problem of positioning delay in traditional river rescue is solved, achieving a rapid and efficient rescue effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI BAILI XINKE LOW ALTITUDE TECHNOLOGY CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional river rescue methods suffer from location delays in complex environments, leading to missed rescue opportunities, and existing drone equipment is not efficient enough for waterborne monitoring and rescue.
Design a drone for river rescue, equipped with an inflation mechanism and a lifebuoy assembly. It uses a two-way air pump to control the airbag to float on the water for monitoring, and combines lidar and camera to identify the trapped person. The rescue is carried out by dropping a compressed lifebuoy that is instantly inflated by retracting the base.
It enables rapid location of trapped individuals and effective deployment of lifebuoys in complex river environments, improving the response speed and safety of river rescue operations.
Smart Images

Figure CN224277520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV used for river rescue. Background Technology
[0002] Rescue drones are drones specifically designed for emergency rescue scenarios. With their flexibility, efficiency, and low risk, they have become an indispensable "aerial force" in modern rescue systems. Compared to traditional rescue methods, they offer greater advantages in response speed, coverage, and safety in complex environments.
[0003] The golden time for river rescue is usually only ten to thirty minutes, and even shorter in cold water. Traditional manual search methods, such as lifeboat patrols and shoreline searches, often miss rescue opportunities due to limited visibility and water flow interference, resulting in delayed positioning. Utility Model Content
[0004] The purpose of this invention is to provide a drone for river rescue, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone for river rescue, comprising a drone body, an inflation mechanism and a lifebuoy assembly on the drone body, the inflation mechanism comprising a bidirectional air pump mounting box, the bidirectional air pump mounting box containing a bidirectional air pump, the bidirectional air pump being connected to a connecting pipe, the connecting pipe being connected to a flexible hose, the flexible hose being connected to an airbag, the airbag being wrapped around the legs of the drone body, and the lifebuoy assembly comprising a retractable base, the retractable base being connected to a compressible lifebuoy.
[0006] The life ring is equipped with a compressed gas tank, which is connected to a one-way solenoid valve. The one-way solenoid valve is connected to the life ring via an inflation tube.
[0007] The motor is mounted on the outer surface of the winding base, and the output shaft of the motor is fixedly connected to the winding wheel. The winding wheel is located inside the winding base and is connected to the winding base through a bearing.
[0008] The winding reel has a traction rope wound around it, and one end of the traction rope is fixedly connected to a compressed lifebuoy.
[0009] The main body of the drone includes a base, and the two sets of legs are located on both sides of the base.
[0010] The bidirectional air pump mounting box is fixedly installed on the top of the base.
[0011] The bidirectional air pump mounting box has a slot.
[0012] The lower end of the base is equipped with a gimbal, and a camera module is mounted on the gimbal.
[0013] The camera module includes a visible light camera and an infrared thermal imager.
[0014] The main body of the drone includes wings, and a lidar is installed on the wings.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model adds airbags to the legs of a drone. The airbags are inflated or deflated by a bidirectional air pump. When used for river rescue, the drone can be controlled to float on the water to monitor and photograph the surrounding waters and quickly locate the trapped person.
[0017] 2. This utility model uses a retractable base to lower a compressed lifebuoy. The lifebuoy is inflated instantaneously during the lowering process. The lifebuoy can be thrown to rescue trapped people. After the trapped person grabs the lifebuoy, a drone will pull the lifebuoy to drag the trapped person to the shore or a safe area. Attached Figure Description
[0018] Figure 1 This is a top view structural diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the structure from a bottom view of the present invention;
[0020] Figure 3 for Figure 2 Enlarged view of a portion of area A in the middle;
[0021] Figure 4 This is a schematic diagram of the structure of the winding wheel of this utility model.
[0022] In the diagram: 1. Drone body; 2. Inflation mechanism; 3. Life ring assembly; 11. Base; 12. Outriggers; 13. Gimbal; 14. Camera module; 15. Wing; 16. LiDAR; 141. Visible light camera; 142. Infrared thermal imager; 21. Two-way air pump mounting box; 22. Connecting pipe; 23. Hose; 24. Airbag; 31. Rewinding base; 32. Motor; 33. Rewinding reel; 34. Towing rope; 35. Compressed life ring; 36. Compressed gas tank; 37. One-way solenoid valve; 38. Inflation pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 This utility model provides a technical solution: a drone for river rescue, including a drone body 1, an inflation mechanism 2 and a lifebuoy assembly 3 on the drone body 1, the inflation mechanism 2 including a two-way air pump mounting box 21, the two-way air pump being built into the two-way air pump, the two-way air pump being connected to a connecting pipe 22, the connecting pipe 22 being connected to a hose 23, the hose 23 being connected to an airbag 24, the airbag 24 being wrapped around the legs 12 of the drone body 1, and the lifebuoy assembly 3 including a retractable base 31, the retractable base 31 being connected to a compressible lifebuoy 35.
[0025] An airbag 24 is added to the outrigger 12. When the bidirectional air pump is working, it can inflate the airbag 24 through the connecting pipe 22 and the hose 23, or deflat the airbag 24. When inflated, the airbag 24 expands and can float on the water surface. When deflated, the airbag 24 retracts and the drone can leave the water surface and take off. When used for river rescue, the drone can be controlled to float on the water surface to monitor and photograph the nearby water area and quickly locate the trapped person.
[0026] The compression life ring 35 is equipped with a compressed gas tank 36, which is connected to a one-way solenoid valve 37. The one-way solenoid valve 37 and the compression life ring 35 are connected by an inflation pipe 38.
[0027] When the compression lifebuoy 35 is not in use, it is in a folded and compressed state and carried by the drone. It is small in size and compact in structure, reducing the volume when carried by the drone. When the compression lifebuoy 35 is in use, the one-way solenoid valve 37 is opened, and the compressed air inside the compressed gas tank 36 enters the compression lifebuoy 35 through the inflation pipe 38 to inflate the compression lifebuoy 35 instantly, and the buoyancy is activated.
[0028] The outer side of the winding base 31 is equipped with a motor 32. The output shaft of the motor 32 is fixedly connected to the winding wheel 33. The winding wheel 33 is located inside the winding base 31 and is connected to the winding base 31 through a bearing. The winding wheel 33 can rotate relative to the winding base 31.
[0029] The winding reel 33 has a traction rope 34 wound around it, and one end of the traction rope 34 is fixedly connected to the compression lifebuoy 35.
[0030] When the motor 32 is working, it drives the winding wheel 33 at one end to rotate. When the winding wheel 33 rotates, it winds up or lowers the traction rope 34, thereby winding up or lowering the compressed lifebuoy 35. After the drone arrives at the target area, it lowers the compressed lifebuoy 35 through the winding base 31. The compressed lifebuoy 35 is inflated instantaneously during the lowering process. The rescuer is rescued by throwing the lifebuoy. After the rescuer grabs the lifebuoy, the drone pulls the lifebuoy to drag the rescuer to the shore or a safe area.
[0031] The drone body 1 includes a base 11 and two sets of legs 12 located on both sides of the base 11. The drone body 1 is supported by the two sets of legs 12, and the drone body 1 can land stably on the ground or water surface.
[0032] The bidirectional air pump mounting box 21 is fixedly installed on the top of the base 11.
[0033] The bidirectional air pump mounting box 21 has a slot, which will not affect the normal operation and heat dissipation of the bidirectional air pump.
[0034] The base 11 has a gimbal 13 installed at its lower end, and a camera module 14 is installed on the gimbal 13.
[0035] The camera module 14 includes a visible light camera 141 and an infrared thermal imager 142.
[0036] The visible light camera 141 uses a high-definition lens and optical zoom, supports target tracking, and can lock the color of the clothing of a person who has fallen into the water or reflective objects. The infrared thermal imager 142 can detect human body heat and identify trapped people hidden in aquatic plants or reeds. It is a core device for nighttime or rainy days.
[0037] The main body of the drone 1 includes wings 15, and a lidar 16 is installed on the wings 15. The lidar 16 is used in complex waterways to identify hidden obstacles. In complex waterway environments, such as rapids, reefs, nighttime or low visibility scenarios, the lidar 16 makes up for the limitations of traditional camera equipment and significantly improves the accuracy and safety of rescue.
[0038] Working principle: During use, obstacle avoidance is achieved through LiDAR 16, the color of the clothing or reflective objects of the person in the water is locked by the visible light camera 141, and the body heat is detected by the infrared thermal imager 142 to identify the trapped person hidden in aquatic plants or reeds. The airbag 24 can be inflated or deflated by a two-way air pump. The inflated airbag 24 allows the main body of the drone 1 to float on the water surface, monitor and photograph the surrounding water area, and quickly locate the trapped person. When the airbag 24 is deflated, it retracts and the drone can leave the water surface and take off. After the trapped person is located and the drone reaches the target area, the compression lifebuoy 35 is lowered by the retractable base 31. The compression lifebuoy 35 is inflated instantaneously during the lowering process. The trapped person is rescued by throwing the lifebuoy. After the trapped person grabs the lifebuoy, the drone pulls the lifebuoy to drag the trapped person to the shore or a safe area.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drone for river rescue, comprising a drone body (1), characterized in that: The main body (1) of the drone is provided with an inflation mechanism (2) and a life ring assembly (3). The inflation mechanism (2) includes a bidirectional air pump mounting box (21), which contains a bidirectional air pump. The bidirectional air pump is connected to a connecting pipe (22), which is connected to a hose (23). The hose (23) is connected to an airbag (24), which is wrapped around the legs (12) of the main body (1) of the drone. The life ring assembly (3) includes a retractable base (31), which is connected to a compression life ring (35).
2. The drone for river rescue according to claim 1, characterized in that: The compressed life ring (35) is provided with a compressed gas tank (36), the compressed gas tank (36) is connected to a one-way solenoid valve (37), and the one-way solenoid valve (37) and the compressed life ring (35) are connected by an inflation pipe (38).
3. The drone for river rescue according to claim 1, characterized in that: A motor (32) is installed on the outer surface of the winding base (31). The output shaft of the motor (32) is fixedly connected to the winding wheel (33). The winding wheel (33) is located inside the winding base (31) and is connected to the winding base (31) through a bearing.
4. The drone for river rescue according to claim 3, characterized in that: A traction rope (34) is wound on the winding reel (33), and one end of the traction rope (34) is fixedly connected to a compression lifebuoy (35).
5. The drone for river rescue according to claim 1, characterized in that: The main body (1) of the drone includes a base (11), and the two sets of legs (12) are located on both sides of the base (11).
6. The drone for river rescue according to claim 5, characterized in that: The bidirectional air pump mounting box (21) is fixedly installed on the top of the base (11).
7. The drone for river rescue according to claim 1, characterized in that: The bidirectional air pump mounting box (21) has a slot.
8. A drone for river rescue according to claim 5, characterized in that: A gimbal (13) is installed at the lower end of the base (11), and a camera module (14) is installed on the gimbal (13).
9. A drone for river rescue according to claim 8, characterized in that: The camera module (14) includes a visible light camera (141) and an infrared thermal imager (142).
10. A drone for river rescue according to claim 1, characterized in that: The main body (1) of the UAV includes wings (15), and a lidar (16) is installed on the wings (15).