Drowning self-rescue device for unmanned aerial vehicle

By installing a self-rescue device for water crashes on unmanned aerial vehicles (UAVs), consisting of a shell, airbag, chemical agent, and one-way valve, the device utilizes the reaction of the chemical agent with water to generate gas that allows the UAV to float to the surface. This solves the problem of UAVs being unable to float quickly after crashing into water, enabling rapid search and minimizing losses.

CN224146195UActive Publication Date: 2026-04-21SHENZHEN HIGHGREAT TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HIGHGREAT TECH DEV CO LTD
Filing Date
2025-06-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Unmanned aerial vehicles (UAVs) often fail to surface quickly after crashing into water, leading to damage and difficulty in detection, resulting in financial losses.

Method used

Design a self-rescue device for falling into water, including a shell, an airbag, a reagent, and a one-way valve. The reagent reacts with water to generate gas, which inflates the airbag. The one-way valve converts the water pressure into buoyancy, allowing the unmanned aerial vehicle to float to the surface.

Benefits of technology

This effectively avoids prolonged immersion of drones, facilitates rapid search and rescue, and reduces financial losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drowning self-rescue device for an unmanned aerial vehicle. The drowning self-rescue device comprises a shell, an air bag, a medicament and a one-way valve, the shell is provided with a reaction cavity, and the shell is provided with a mounting opening for communicating the outside with the reaction cavity; the medicament is arranged in the reaction cavity and generates gas when encountering water; the one-way valve is arranged in the installation opening, and gas and water can only flow into the reaction cavity unidirectionally from the outside through the one-way valve. The drowning self-rescue device for the unmanned aerial vehicle is mounted on the unmanned aerial vehicle during use. When the unmanned aerial vehicle falls into water, external water pressure enables water to enter the water-falling self-rescue device through the one-way valve, and gas is generated after the chemical reacts with the water to inflate the air bag, so that the unmanned aerial vehicle emerges from the water together with the air bag, the unmanned aerial vehicle is prevented from being soaked in the water for a long time, and a user can conveniently and quickly search the water-falling unmanned aerial vehicle; and the financial loss of the user can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a self-rescue device for UAVs that fall into water. Background Technology

[0002] Currently, with the development of unmanned aerial vehicle (UAV) technology, more and more UAVs are being applied in various fields. However, UAVs are prone to collisions with other birds or UAVs during flight, leading to crashes. Improper maintenance can cause motor aging, damage, or loose propeller bolts, resulting in sudden loss of power and a crash. Interference signals can also cause UAVs to lose connection and control, leading to a crash. If a UAV falls into water, it will sink, causing damage. Furthermore, UAVs are difficult to retrieve and are not easily found quickly. If a UAV is submerged in water for an extended period, its internal electronic circuitry will inevitably be affected. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a self-rescue device for unmanned aerial vehicles that fall into water.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a water-falling self-rescue device for unmanned aerial vehicles, including a shell, an airbag, a reagent, and a one-way valve; the shell has a reaction chamber, and the shell is provided with an installation port that connects the outside to the reaction chamber; the reagent is placed in the reaction chamber, and the reagent generates gas when it comes into contact with water; the one-way valve is placed in the installation port, and the gas and water can only flow into the reaction chamber unidirectionally from the outside through the one-way valve.

[0005] Furthermore, there are multiple airbags.

[0006] Furthermore, multiple airbags are evenly distributed circumferentially around the shell.

[0007] Furthermore, the one-way valve includes a movable diaphragm and a valve body. The valve body has a through hole, and the movable diaphragm is movably connected to the side of the valve body near the reaction chamber. The movable diaphragm is used to open and close the through hole.

[0008] Furthermore, the air bladder is cylindrical or prismatic.

[0009] Furthermore, the width of the airbag gradually increases from bottom to top.

[0010] Furthermore, the housing is provided with a plug-in slot.

[0011] Furthermore, the housing is provided with mounting holes.

[0012] Furthermore, a baffle is provided on the shell, and the baffle is located above the airbag.

[0013] Furthermore, the housing has a receiving cavity for accommodating at least a portion of the airbag.

[0014] The beneficial effects of this invention are as follows: This self-rescue device for unmanned aerial vehicles (UAVs) is mounted on the UAV during use. When the UAV falls into the water, external water pressure forces water through a one-way valve into the device. The reagent reacts with the water to produce gas, which inflates the airbag, causing the UAV to float to the surface. This prevents the UAV from being submerged in water for an extended period and facilitates quick retrieval of the submerged UAV, thus reducing financial losses for the user. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a self-rescue device for unmanned aerial vehicles that has fallen into water, according to Embodiment 1 of this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the self-rescue device for unmanned aerial vehicles that falls into water according to Embodiment 1 of this utility model;

[0017] Figure 3 This is an exploded view of the one-way valve in the self-rescue device for unmanned aerial vehicles that has fallen into the water according to Embodiment 1 of this utility model;

[0018] Figure 4 This is a cross-sectional view of the self-rescue device for unmanned aerial vehicles that has fallen into the water according to Embodiment 2 of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of the self-rescue device for unmanned aerial vehicles that falls into water according to Embodiment 2 of this utility model.

[0020] Label Explanation:

[0021] 1. Shell; 11. Reaction chamber; 12. Mounting port; 13. Insertion slot;

[0022] 2. Airbag;

[0023] 3. Medications;

[0024] 4. One-way valve; 41. Movable diaphragm; 42. Valve body; 421. Through hole. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figures 1 to 5A self-rescue device for unmanned aerial vehicles that falls into water includes a shell 1, an airbag 2, a reagent 3, and a one-way valve 4. The shell 1 has a reaction chamber 11, and the shell 1 is provided with an installation port 12 that connects the outside to the reaction chamber 11. The reagent 3 is placed inside the reaction chamber 11, and the reagent 3 generates gas when it comes into contact with water. The one-way valve 4 is placed inside the installation port 12, and the gas and water can only flow into the reaction chamber 11 from the outside through the one-way valve 4.

[0027] As can be seen from the above description, the beneficial effects of this utility model are as follows: When the self-rescue device for unmanned aerial vehicles (UAVs) falls into the water, the external water pressure causes water to enter the self-rescue device through the one-way valve 4. After the agent 3 reacts with the water, it generates gas to inflate the airbag 2, thereby causing the UAV to float to the surface along with it. This avoids the UAV from being submerged in water for a long time and also makes it easier for users to quickly find the UAV that has fallen into the water, thus helping to reduce the user's financial losses.

[0028] Furthermore, there are multiple airbags 2.

[0029] As can be seen from the above description, setting multiple airbags 2 can increase buoyancy to meet the needs of using heavy unmanned aerial vehicles.

[0030] Furthermore, multiple airbags 2 are evenly distributed around the circumference of the shell 1.

[0031] As described above, when this self-rescue device falls into the water, the buoyancy received by any two opposite sides is basically the same. This helps to prevent the self-rescue device from tilting relative to the UAV, causing the connection between the device and the UAV to break, which would then cause the UAV to lose buoyancy support and re-immerse in the water.

[0032] Furthermore, the one-way valve 4 includes a movable diaphragm 41 and a valve body 42. The valve body 42 is provided with a through hole 421. The movable diaphragm 41 is movably connected to the side of the valve body 42 near the reaction chamber 11. The movable diaphragm 41 is used to open and close the through hole 421.

[0033] As can be seen from the above description, the one-way valve 4 has a simple structure and is easy to manufacture.

[0034] Furthermore, airbag 2 is cylindrical or prismatic.

[0035] As can be seen from the above description, the shape of the airbag 2 can be selected according to actual usage needs or production conditions.

[0036] Furthermore, the width of airbag 2 gradually increases from bottom to top.

[0037] As described above, airbag 2 can make the unmanned aerial vehicle more stable when it is stationary on the water surface, reducing the risk of secondary damage and tipping over.

[0038] Furthermore, the housing 1 is provided with a plug-in slot 13.

[0039] Furthermore, the housing 1 is provided with mounting holes.

[0040] As described above, this self-rescue device for falling into water can be mounted on an unmanned aerial vehicle via the insertion slot 13 or the mounting hole.

[0041] Furthermore, a baffle is provided on the housing 1, and the baffle is located above the airbag 2.

[0042] As described above, the baffle is used to restrict the upward movement of the airbag 2 when it inflates, preventing the airbag 2 from contacting the blades of the unmanned aerial vehicle and being damaged.

[0043] Furthermore, the housing 1 is provided with a receiving cavity for accommodating at least a portion of the airbag 2.

[0044] As can be seen from the above description, the inclusion cavity for the airbag 2 can reduce the risk of damage to the airbag 2 when it is not in use.

[0045] Please refer to Figures 1 to 3 One embodiment of this utility model is a water-fall self-rescue device for unmanned aerial vehicles, comprising a shell 1, an airbag 2, a reagent 3, and a one-way valve 4; the shell 1 has a reaction chamber 11, and the shell 1 is provided with an installation port 12 connecting the outside to the reaction chamber 11; the reagent 3 is disposed in the reaction chamber 11, and the reagent 3 generates gas upon contact with water; the one-way valve 4 is disposed in the installation port 12, and the gas and water can only flow into the reaction chamber 11 unidirectionally from the outside through the one-way valve 4. Optionally, the shell 1 is a cylinder or a prism.

[0046] In this embodiment, there are four airbags 2, which are evenly distributed around the circumference of the shell 1. In other embodiments, the number of airbags 2 may be one, two, three or more.

[0047] The one-way valve 4 includes a movable diaphragm 41 and a valve body 42. The valve body 42 has a through hole 421. The movable diaphragm 41 is movably connected to the side of the valve body 42 near the reaction chamber 11, and the movable diaphragm 41 is used to open and close the through hole 421. The valve body 42 is detachably connected to the mounting port 12, so that the one-way valve 4 is detachable for easy replacement of the reagent 3. Optionally, the connection method between the movable diaphragm 41 and the valve body 42 includes, but is not limited to, a rotational connection and a connection via an elastic connecting arm; the connection method between the valve body 42 and the housing 1 includes, but is not limited to, a snap-fit ​​engagement and a snap-fit ​​connection. In other embodiments, it is also feasible for the one-way valve 4 to be fixedly connected to the housing 1, and for the housing 1 to have an openable structure for opening and closing the reaction chamber 11 for easy replacement and addition of the reagent 3.

[0048] In this embodiment, the airbag 2 is cylindrical. In other embodiments, the airbag 2 may be prismatic or other shapes.

[0049] To facilitate connection between this self-rescue device and the unmanned aerial vehicle (UAV), the housing 1 is provided with a connector slot 13. The self-rescue device connects to the lower end of the UAV's support leg via the connector slot 13. Since the self-rescue device and the UAV's support leg coincide in the vertical direction, the impact of the self-rescue device on axial wind resistance is effectively reduced. Furthermore, upon landing, the self-rescue device will enter the water before the UAV, triggering inflation for rapid rescue. In other embodiments, the housing 1 is provided with mounting holes, allowing the self-rescue device to connect to the UAV.

[0050] In other embodiments, it is also feasible to have a baffle on the housing 1, with the baffle located above the airbag 2. The baffle is used to restrict the upward movement of the airbag 2 when it inflates, preventing the airbag 2 from contacting the blades of the unmanned aerial vehicle and being damaged.

[0051] In other embodiments, it is also feasible for the housing 1 to have a receiving cavity, which can accommodate at least a portion of the airbag 2 when the airbag 2 is contracted.

[0052] Please refer to Figure 4 and Figure 5 The second embodiment of this utility model is a further improvement on the airbag 2 based on the first embodiment. The difference from the first embodiment is that the number of airbags 2 is one, and the width of the airbag 2 gradually increases from bottom to top.

[0053] In this embodiment, the airbag 2 is in the shape of an inverted frustum and is arranged around the shell 1.

[0054] In summary, the self-rescue device for unmanned aerial vehicles (UAVs) provided by this utility model is mounted on the UAV during use. When the UAV falls into the water, external water pressure forces water into the device through a one-way valve. The reagent reacts with the water to produce gas, which inflates the airbag, causing the UAV to float to the surface. This prevents the UAV from being submerged in water for an extended period and allows users to quickly locate the UAV, thus reducing financial losses for the user.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water landing self-rescue device for an unmanned aerial vehicle, characterized in that, The device includes a housing, an air bladder, a reagent, and a one-way valve. The housing has a reaction chamber and an installation port on the housing that connects the outside to the reaction chamber. The reagent is disposed inside the reaction chamber and generates gas upon contact with water. The one-way valve is disposed inside the installation port, allowing gas and water to flow into the reaction chamber unidirectionally from the outside through the one-way valve.

2. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The number of airbags is multiple.

3. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 2, wherein, Multiple airbags are evenly distributed around the circumference of the shell.

4. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The one-way valve includes a movable diaphragm and a valve body. The valve body has a through hole. The movable diaphragm is movably connected to the side of the valve body near the reaction chamber. The movable diaphragm is used to open and close the through hole.

5. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The airbag is cylindrical or prismatic in shape.

6. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The width of the airbag gradually increases from bottom to top.

7. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The housing is provided with a plug-in slot.

8. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The housing is provided with mounting holes.

9. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The housing is provided with a baffle, which is located above the airbag.

10. The water landing self-rescue apparatus for unmanned aerial vehicles of claim 1, wherein, The housing has a receiving cavity for accommodating at least a portion of the airbag.