Unmanned aerial vehicle for artificial rainfall

By using a drone platform to carry silver iodide smoke sticks, the problems of high cost, low efficiency and severe terrain limitations of traditional artillery shells have been solved, achieving efficient and flexible artificial rainmaking effects.

CN223972726UActive Publication Date: 2026-03-06HEBEI KAIWEI AVIATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional artificial rainmaking methods, which involve launching artillery shells, suffer from problems such as high cost, non-recoverable shells, low operational efficiency, severe terrain limitations, and poor flexibility.

Method used

Using a drone platform equipped with silver iodide smoke sticks, artificial rainmaking is achieved through remote drone control. The silver iodide smoke sticks disperse in the air to generate ice crystals that form raindrops, and the high speed and long flight time of the drones enable large-area coverage.

Benefits of technology

It reduced costs, improved operational efficiency, reduced terrain limitations, enabled rapid response and large-area coverage, and reduced preparation time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of unmanned aerial vehicle rainfall, and provides an unmanned aerial vehicle for artificial rainfall, which comprises an unmanned aerial vehicle main body, and the unmanned aerial vehicle main body is provided with a vehicle body and wings arranged on two sides of the vehicle body; the vehicle arms are parallel to the vehicle body and perpendicular to the wings, first mounting grooves are formed in the two ends of each vehicle arm, driving motors are mounted in the first mounting grooves, and the driving motors are used for driving the propellers to rotate so that the unmanned aerial vehicle body can take off or land; and a connecting frame is arranged on the machine arm and is used for hanging a silver iodide cigarette bar. Compared with traditional cannonball launching, the unmanned aerial vehicle in the scheme can work repeatedly; a traditional cannonball mode needs professional personnel to drive a professional vehicle to a specific place for launching, and is limited by terrains, however, in the scheme, the unmanned aerial vehicle is not limited by the terrains and can be remotely controlled and take off; during large-area precipitation enhancement, the unmanned aerial vehicle in the scheme can complete precipitation enhancement by one aircraft through high navigational speed and long endurance, the coverage area is large, the efficiency is high, and the time is saved.
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Description

Technical Field

[0001] The embodiments of this utility model relate to the field of drone rainmaking technology, specifically, to a drone for artificial rainmaking. Background Technology

[0002] In the field of meteorological intervention, traditional artificial rainmaking is mainly achieved by launching artillery shells. However, this method has many limitations. First, artillery shells are expensive and are disposable, meaning they cannot be recycled. Second, the shell launching operation is complex, requiring specialized technicians to drive dedicated launch vehicles to specific launch sites. For example, in mountainous areas or other areas with complex terrain, the roads are rugged and difficult to traverse, making vehicle access challenging, and some areas inaccessible, thus hindering the smooth operation of the mission.

[0003] Furthermore, to achieve good artificial rainmaking results, multiple launch sites are often required in different areas, which not only increases the investment of manpower and resources, but also makes coordination between the sites difficult, resulting in low operational efficiency. At the same time, shell launches may also be restricted by various factors such as weather and airspace control, further reducing the flexibility and timeliness of operations. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a drone for artificial rainmaking, which solves the technical problems of high cost of artillery shell launch, limited coverage area, and low operation efficiency in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides an unmanned aerial vehicle (UAV) for artificial rainmaking, comprising: a UAV body having a fuselage and wings disposed on both sides of the fuselage;

[0006] An arm is mounted on the wing, parallel to the fuselage and perpendicular to the wing. Each end of the arm has a first mounting slot for mounting a drive motor, which drives the propeller to rotate so that the UAV body can take off or land.

[0007] The arm is equipped with a connecting frame for mounting silver iodide cigarette sticks.

[0008] For example, in at least one embodiment of the present invention, an unmanned aerial vehicle for artificial rainmaking has an overlap groove in the middle of the arm, and the wing is used to overlap in the overlap groove. The bottom of the overlap groove is a curved shape that matches the lower surface of the wing.

[0009] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein the arm has a second mounting groove, the second mounting groove being located on both sides of the overlapping groove; and further includes:

[0010] A clip is disposed in the second mounting slot and extends above the wing to abut against the upper surface of the wing and fix the wing.

[0011] For example, in a drone for artificial rainmaking provided in at least one embodiment of the present invention, the upper surface of the card is a windward surface, and the windward surface is an inclined surface that is inclined downward toward the side away from the wing.

[0012] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein the second mounting groove is arranged at an angle, oriented obliquely downward toward the side away from the wing.

[0013] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein both ends of the arm are provided with a third mounting groove, which is located on the lower side of the arm and is used to mount a cruise light.

[0014] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided with a fourth mounting groove in the middle of the arm. The fourth mounting groove is used to install a wire harness connector, and the fourth mounting groove is connected to both the first mounting groove and the third mounting groove so that the wire harness can pass through, thereby enabling the wire harness on the arm to be connected to the wire harness located in the wing through the wire harness connector.

[0015] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein the connecting frame has a connecting part and a hanging part that are connected to each other, the hanging part is located below the wing and is used to hang silver iodide smoke sticks, and the connecting part is arc-shaped and bends toward the hanging part.

[0016] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein the mounting part and the connecting part are detachably connected.

[0017] For example, in at least one embodiment of the present invention, a drone for artificial rainmaking is provided, wherein the connecting part and the mounting part are provided with multiple openings to reduce weight.

[0018] The beneficial effects of the embodiments of this utility model are as follows:

[0019] In this invention, compared to traditional artillery shell firing, the traditional method uses expensive and non-recoverable shells, while the drone in this solution can perform repeated operations. Traditional artillery shell firing requires professional personnel to drive specialized vehicles to specific locations for firing and is also limited by terrain. In contrast, the drone in this solution is not limited by terrain, can be remotely controlled and take off, improving efficiency and reducing costs. When conducting large-scale rain enhancement, traditional artillery shell firing requires setting up multiple locations, while the drone in this solution, with its high speed and long endurance, can complete the task with a single aircraft, covering a large area, being highly efficient, and saving time. The preparation time for the drone method is much shorter than that for the artillery shell method (including travel time). Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an unmanned aerial vehicle (UAV) for artificial rainmaking according to this utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure in the embodiment that hides the propeller and drive motor;

[0023] Figure 3 for Figure 1 A schematic diagram of the arm and connecting frame structure from a first-view perspective in the embodiment;

[0024] Figure 4 for Figure 1 A schematic diagram of the arm and connecting frame structure from a second perspective in the embodiment;

[0025] Figure 5 for Figure 1 The embodiment is a schematic diagram of the arm and connecting frame structure from a third-person perspective.

[0026] In the diagram: 1. Main body of the UAV; 101. Airframe; 102. Wing; 103. Arm; 104. First mounting slot; 105. Overlapping slot; 106. Second mounting slot; 107. Third mounting slot; 108. Fourth mounting slot; 2. Drive motor; 3. Propeller; 4. Connecting frame; 401. Connecting part; 402. Hanging part; 403. Through port; 5. Clip; 501. Windward side; 6. Wiring harness connector; 7. Silver iodide cigarette stick. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figure 1 and Figure 2As shown, this invention discloses a drone for artificial rainmaking. The arm 103 has first mounting slots 104 at both ends to provide mounting positions for the drive motor 2. The length of the arm 103 is longer than the width of the wing 102, allowing the two propellers 3 to be located on either side of the wing 102, improving flight stability. The drive motor 2 drives the propellers 3 to rotate at high speed via its output shaft, thereby driving the drone body 1 to take off and land. After the drone body 1 takes off to a certain height, the propellers 3 can be paused, and the drone can hover using the wing 102. A connecting frame 4 is installed on the arm 103, and a silver iodide smoke stick 7 is securely mounted using clips, bolts, and other fixing methods. When performing artificial rainmaking tasks, after the drone flies to a suitable altitude (usually 4000-5000 meters) and position, the silver iodide smoke stick 7 can be ignited via a control device.

[0034] There are several ways to ignite the silver iodide smoke stick 7. An example is as follows: the silver iodide smoke stick 7 is ignited by a heatable power cord. Specifically, the electronic switch is turned on, the power cord is connected, the power cord heats up and ignites the flame (flammable material) in the launch tube, the flame ignites the gunpowder, and the gunpowder pushes the catalyst containing silver iodide out of the launch tube and disperses in the air, thereby producing a large number of ice crystals, which cause water vapor to condense into raindrops, thus achieving artificial rain.

[0035] In summary, compared to traditional artillery shell firing, which is costly and non-recoverable, this solution utilizes drones that can perform repeated operations. Traditional artillery shell firing requires specialized personnel to drive specialized vehicles to specific locations and is subject to terrain limitations. In contrast, drones in this solution are not limited by terrain, can be remotely controlled and take off, improving efficiency and reducing costs. For large-scale rain enhancement, traditional artillery shell firing requires setting up multiple locations, while drones in this solution, with their high speed and long endurance, can complete the task with a single aircraft, covering a large area, increasing efficiency, and saving time. The preparation time for drones is significantly shorter than that for artillery shell firing (including travel time).

[0036] Furthermore, such as Figure 3 As shown, a curved overlapping groove 105 adapted to the lower surface of the wing 102 is provided in the middle of the arm 103. That is, the bottom of the overlapping groove 105 is designed with reference to the lower surface of the wing 102, which increases the contact area between the arm 103 and the wing 102, making the connection between the arm 103 and the wing 102 more solid, enhancing stability, improving the control accuracy of the UAV's flight attitude, and ensuring the flight safety of the UAV.

[0037] Furthermore, such as Figure 3As shown, the arm 103 is also provided with a second mounting slot 106. The second mounting slot 106 is provided on both sides of the overlapping slot 105. The function of the second mounting slot 106 is to provide a mounting position for the clip 5. The clip 5 is installed in the second mounting slot 106 and extends above the wing 102, abutting against the upper surface of the wing 102, for the purpose of stably fixing the arm 103 to the wing 102. This robust connection structure ensures the stability of the UAV during flight, reduces abnormal flight attitude caused by wing 102 connection problems, and thus improves flight safety.

[0038] Furthermore, such as Figure 3 and Figure 5 As shown, the windward surface 501 of the card component 5 is designed as an inclined surface, tilting downwards towards the side away from the wing 102, utilizing the streamlined design principle in aerodynamics. When the UAV is in flight, air flows over the card component 5, and the inclined windward surface 501 can guide the airflow in a certain direction, allowing the airflow to flow more smoothly over the surface of the card component 5, reducing airflow turbulence and eddy current generation. This reduces air resistance on the card component 5 and improves the flight efficiency of the UAV. At the same time, the downward-sloping design of the card component 5 reduces the cross-sectional area; under otherwise unchanged conditions, a smaller cross-sectional area also reduces air resistance accordingly.

[0039] Furthermore, the second mounting slot 106 is arranged at an angle, so that the clip 5 also has a corresponding tilt angle after installation. The inclined second mounting slot 106 provides clear guidance for the installation of the clip 5, making the installation of the clip 5 more convenient and accurate. At the same time, this design also facilitates the disassembly and replacement of the clip 5 during maintenance and repair, improving the maintainability of the UAV.

[0040] Furthermore, such as Figure 4 As shown, the cruise light is mounted on the underside of arm 103, providing a clear identifier for the drone at night or in low-visibility environments. This makes it easier for other aircraft, ground personnel, or equipment to spot, thus preventing collisions and improving the safety of drone flight. Especially when performing artificial rainmaking missions, which may require flight in complex weather conditions, the cruise light helps enhance the drone's visibility in various environments.

[0041] Furthermore, such as Figure 3As shown, the arm 103 has a fourth mounting slot 108 in the middle for mounting the wiring harness connector 6. The fourth mounting slot 108 is connected to the first mounting slot 104 (for mounting the drive motor 2) and the third mounting slot 107 (for mounting the cruise light). That is, a wiring harness channel is provided between the fourth mounting slot 108 and the first mounting slot 104 and the third mounting slot 107, or the arm 103 is a hollow structure. This arrangement not only allows wiring harnesses to pass through, but also allows the wiring harnesses of different devices on the arm 103 (such as the drive motor 2, cruise light, etc.) to converge in the fourth mounting slot 108 through this channel, and then connect to the wiring harness located in the wing 102 through the wiring harness connector 6. This facilitates centralized management and connection of the entire UAV's electrical circuitry, ensuring the integrity and stability of the electrical system, and also reduces the overall weight of the UAV.

[0042] Furthermore, such as Figures 3-5 As shown, the connecting part 401 of the connecting frame 4 is designed in an arc shape and curves towards the mounting part 402. The arc shape of the connecting part 401 can reduce air resistance during airflow. When the UAV is flying, air flows through the connecting frame 4, and the arc surface allows the airflow to pass more smoothly, reducing airflow turbulence and eddy current generation. This helps to reduce the energy consumption of the UAV during flight, improve flight efficiency, and also reduce the impact of unstable airflow on the connecting frame 4 and the mounted silver iodide smoke stick 7. The mounting part 402 is located below the wing 102 and is used to mount the silver iodide smoke stick 7. Its design principle is based on the convenient and secure fixation of the silver iodide smoke stick 7. The mounting part 402 usually adopts a specific structure, such as a buckle or hook, which can cooperate with the corresponding part of the silver iodide smoke stick 7.

[0043] Furthermore, the mounting part 402 and the connecting part 401 are detachably connected, commonly through threaded connections, snap-fit ​​connections, or pin connections. When the mounting part 402 is damaged or worn, it is not necessary to replace the entire connecting frame 4; simply remove the mounting part 402 and replace it with a new one. This significantly reduces maintenance costs and time, improving the maintenance efficiency of the UAV. In different artificial rainmaking missions, it may be necessary to mount different specifications or quantities of silver iodide smoke sticks 7. The detachable connection allows for the replacement of different types of mounting parts 402 according to actual needs, to adapt to different mounting requirements.

[0044] In some examples, openings 403 are provided on the connector 401 and the mounting portion 402, reducing the amount of material used in the structure and thus lowering the overall weight. When air flows through the connector 4, the openings 403 allow for smoother airflow, reducing air obstruction and eddy currents. Compared to a solid structure, the airflow on the surface of the connector 4 with openings 403 is more stable, thus reducing air resistance. This helps improve the drone's flight efficiency, reduce energy consumption, and enable the drone to fly farther or operate for longer periods with the same energy reserves when performing artificial rainmaking missions.

[0045] In addition, a pitot tube can be installed on the fuselage 101 to heat the wings 102 and prevent icing at high altitudes.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An unmanned aerial vehicle for artificial rainfall, characterized by, The utility model relates to a kind of unmanned aerial vehicle, including: Unmanned aerial vehicle body (1), the unmanned aerial vehicle body (1) has body (101) and wing (102) being arranged in both sides of the body (101); Arm (103) is arranged on the wing (102), the arm (103) is parallel to the body (101), and is perpendicular to the wing (102), both ends of the arm (103) are equipped with first installation slot (104), and driving motor (2) is used for installing in the first installation slot (104), the driving motor (2) is used to drive propeller (3) rotation, to make the unmanned aerial vehicle body (1) take off or land; The arm (103) is equipped with connecting frame (4), and the connecting frame (4) is used for hanging silver iodide cigarette (7).

2. The unmanned aerial vehicle for artificial rainfall according to claim 1, wherein The middle part of the arm (103) has lap joint groove (105), and the wing (102) is used for lapping in the lap joint groove (105), and the bottom of the lap joint groove (105) is curved and matched with the lower surface of the wing (102).

3. The unmanned aerial vehicle for artificial rainfall according to claim 2, wherein The arm (103) has second installation slot (106), and the second installation slot (106) is located on both sides of the lap joint groove (105) respectively;Further including: Clamp (5) is arranged in the second installation slot (106), and extends to above the wing (102), to be used for abutting with the upper surface of the wing (102) and fixing the wing (102).

4. The unmanned aerial vehicle for artificial rainfall according to claim 3, wherein The upper surface of the clamp (5) is windward face (501), and the windward face (501) is inclined surface, and inclines downward to the side away from the wing (102).

5. The unmanned aerial vehicle for cloud seeding according to claim 3, wherein The second installation slot (106) is arranged obliquely, and inclines downward to the side away from the wing (102).

6. The unmanned aerial vehicle for cloud seeding according to claim 3, wherein Both ends of the arm (103) also have third installation slot (107), and the third installation slot (107) is located on the lower side of the arm (103) and is used for installing cruise lamp.

7. The unmanned aerial vehicle for cloud seeding according to claim 6, wherein The middle part of the arm (103) is equipped with fourth installation slot (108), and the fourth installation slot (108) is used for installing wire harness connector (6), and the fourth installation slot (108) is communicated with the first installation slot (104) and the third installation slot (107), so that wire harness can pass, so that wire harness on the arm (103) can be connected with wire harness in the wing (102) by the wire harness connector (6).

8. The unmanned aerial vehicle for cloud seeding according to claim 1, wherein The connecting frame (4) has connecting part (401) and hanging part (402) connected with each other, the hanging part (402) is located below the wing (102) and is used for hanging silver iodide cigarette (7), and the connecting part (401) is arc-shaped and curved towards the hanging part (402).

9. The unmanned aerial vehicle for cloud seeding according to claim 8, wherein, The hanging part (402) and the connecting part (401) are detachably connected.

10. The unmanned aerial vehicle for cloud seeding according to claim 9, wherein, Multiple through openings (403) are arranged on the connecting part (401) and the hanging part (402), to reduce weight.