Balancing wing device for air-dropped goods of unmanned aerial vehicle

By installing a protective cover on the outside of the drone's wing rod and securing it with an installation mechanism, the problem of damage caused by the all-moving horizontal stabilizer directly impacting the ground was solved, thus protecting the drone's flight performance and ensuring equipment safety.

CN224117535UActive Publication Date: 2026-04-14SHAANXI UNMANNED EQUIPMENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI UNMANNED EQUIPMENT TECHNOLOGY CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

A direct impact of the all-moving horizontal stabilizer with the ground can easily cause cracks or deformation of the wing surface, affecting the subsequent flight performance of the drone and even causing equipment damage.

Method used

A protective cover is installed on the outside of the drone's wing shaft and fixed by an installation mechanism. When the all-moving horizontal tail touches the ground, the protective cover makes contact with the ground first to absorb the impact force and prevent the all-moving horizontal tail from directly hitting the ground.

Benefits of technology

It effectively protects the all-moving horizontal stabilizer, prevents cracking or deformation, ensures the subsequent flight performance of the UAV, avoids equipment damage, and improves operational convenience and the flexibility of the protective cover.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle airdrop material balance wing device which comprises three unmanned aerial vehicle wing rods, a protective cover is arranged outside each unmanned aerial vehicle wing rod, each mounting mechanism comprises a mounting block, screws, a connecting block and a first nut, the connecting block is slidably connected to the outer portions of the two screws, and the connecting block is connected to the outer portions of the two screws. The connecting block is clamped outside the wing rod of the unmanned aerial vehicle, the two first nuts are in threaded connection outside the two screws and used for limiting movement of the connecting block, the protective cover is installed at the proper position of the wing rod of the unmanned aerial vehicle through the installation mechanism, and meanwhile, the installation mechanism is detachable, so that workers can replace the protective cover conveniently; when the unmanned aerial vehicle lands, if the full-moving horizontal tail touches the ground, the protective cover firstly touches the ground, the protective cover absorbs impact force through self deformation, the situation that the full-moving horizontal tail directly collides with the ground to cause cracking or deformation is avoided, then the follow-up flight performance of the unmanned aerial vehicle is guaranteed, and equipment damage is avoided.
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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 UAV airdrop material balancing wing device. Background Technology

[0002] The stabilizer wing device for drones airdropping supplies is a key component used to adjust flight attitude, balance changes in the center of gravity, and ensure flight stability during the drone's supply drop process. An all-moving horizontal stabilizer is one type; it generates aerodynamic torque through the rotation of the entire wing surface, rapidly adjusting the drone's pitch, roll, or yaw attitude. It has the following structure:

[0003] 1. Rotation mechanism: The drive motor drives the horizontal stabilizer to rotate around the axis according to the control command, changing the wing surface angle and generating aerodynamic torque;

[0004] 2. Control and Sensing System: Through a cycle of "detecting attitude → calculating commands → driving rotation", the horizontal stabilizer angle is dynamically adjusted to compensate for the change in center of gravity caused by airdrop.

[0005] When a drone lands at too high a speed, exceeding the safe landing speed range allowed by the design, it will generate a large impact force at the moment of touchdown. The attitude of the fuselage may change abruptly due to inertia, causing the all-moving horizontal stabilizer to touch the ground. The direct impact of the all-moving horizontal stabilizer on the ground can easily cause the wing surface to crack or deform, which will affect the subsequent flight performance of the drone and even cause equipment damage. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a drone-borne material-dropping ballast device, which solves the technical problem that direct impact of the all-moving horizontal stabilizer on the ground can easily cause the wing surface to crack or deform, thereby affecting the subsequent flight performance of the drone and even causing equipment damage.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drone-borne material-dropping ballast device includes three drone wing rods, each with a fully movable horizontal stabilizer mounted on its exterior. Each wing rod also has a protective cover on its exterior. Each wing rod has a mounting mechanism for mounting the protective cover on its corresponding side. Each mounting mechanism includes a mounting block, screws, a connecting block, and a nut. The mounting block is snapped onto the exterior of the drone wing rod. There are two screws, both fixedly mounted at both ends of the mounting block. The connecting block is slidably connected to the exterior of the two screws and snapped onto the exterior of the drone wing rod. There are two nuts, each threadedly connected to the exterior of the two screws and used to restrict the movement of the connecting block.

[0009] Preferably, each connecting block has a threaded hole on one side corresponding to the UAV wing rod, and a limit bolt is threaded into the inside of each threaded hole to fix the connecting block. A washer is slidably connected to the inside of each connecting block, and a guide block is fixedly installed on the outside of each washer. A guide groove is opened on one side of each connecting block corresponding to the guide block, and the guide block is slidably connected inside the guide groove.

[0010] Preferred configuration: Each mounting block has an adjusting bolt at both ends, and each adjusting bolt has a nut threaded onto its exterior. The protective cover is rotatably connected to the exterior of the two adjusting bolts at both ends. Each mounting block has a mounting groove on one side corresponding to the limiting bolt, and the end of the limiting bolt is engaged inside the mounting groove.

[0011] Preferably, each mounting block has two limit blocks fixedly installed at both ends, and the adjusting bolt is located between the two limit blocks.

[0012] Preferably, each screw, adjusting bolt, and limit bolt has a washer movably fitted onto its exterior.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The protective cover is installed in a suitable position on the wing rod of the drone through the mounting mechanism. The mounting mechanism is detachable, which makes it easy for staff to replace the protective cover and improves the convenience of operation. When the drone lands, if the all-moving horizontal tail touches the ground, the protective cover will touch the ground first. The protective cover absorbs the impact force through its own deformation, preventing the all-moving horizontal tail from directly hitting the ground and causing cracks or deformation. This ensures the subsequent flight performance of the drone and avoids equipment damage.

[0015] Second, the combination of adjusting bolts and nuts allows for flexible adjustment of the position and angle of the protective cover. The position of the protective cover can be adjusted according to the actual situation of the fully movable flat tail, thus improving the flexibility of the protective cover's use. Attached Figure Description

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This utility model Figure 2 Exploded view of the connecting block;

[0020] Figure 4 This utility model Figure 3 Structural diagram of the mounting block.

[0021] Legend: 1. UAV wing mast; 2. All-moving horizontal tail; 3. Protective cover; 4. Mounting block; 5. Screw; 6. Connecting block; 7. Nut 1; 8. Threaded hole; 9. Limit bolt; 10. Washer; 11. Guide block; 12. Guide groove; 13. Adjusting bolt; 14. Nut 2; 15. Mounting groove; 16. Limit stop; 17. Washer. Detailed Implementation

[0022] This application provides a drone-borne material-dropping ballast device, which effectively solves the technical problem that a direct impact of the all-moving horizontal stabilizer on the ground can easily cause the wing surface to crack or deform, thereby affecting the subsequent flight performance of the drone and even causing equipment damage.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that direct impact of the all-moving horizontal stabilizer on the ground can easily cause the wing surface to crack or deform, thereby affecting the subsequent flight performance of the UAV and even causing equipment damage. The overall idea is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a drone airdrop material balancing wing device, including three drone wing rods 1, each drone wing rod 1 having a fully movable horizontal stabilizer 2 installed on its exterior, and each drone wing rod 1 having a protective cover 3 installed on its exterior. Each drone wing rod 1 has a mounting mechanism for installing the protective cover 3 on one side corresponding to each protective cover 3. Each mounting mechanism includes a mounting block 4, a screw 5, a connecting block 6, and a nut 7. The mounting block 4 is snapped onto the exterior of the drone wing rod 1. There are two screws 5, both fixedly installed at both ends of the mounting block 4. The connecting block 6 is slidably connected to the exterior of the two screws 5 and snapped onto the exterior of the drone wing rod 1. There are two nuts 7, each threadedly connected to the exterior of the two screws 5 and used to restrict the movement of the connecting block 6.

[0026] Mounting block 4 and connecting block 6 are respectively engaged from the lower and upper ends of the drone wing rod 1 to form an upper and lower clamping structure for the drone wing rod 1. Two screws 5 provide sliding tracks for connecting block 6. When nut 7 is tightened, nut 7 exerts downward pressure on connecting block 6, so that connecting block 6 and mounting block 4 together clamp the drone wing rod 1, thereby installing the entire mounting mechanism on the drone wing rod 1.

[0027] Each connecting block 6 has a threaded hole 8 on one side corresponding to the drone wing rod 1. The threaded hole 8 communicates with the inside of the connecting block 6. Each threaded hole 8 has a limit bolt 9 threaded inside for fixing the connecting block 6. After the connecting block 6 is initially fixed to the drone wing rod 1 by the nut 7, the limit bolt 9 is rotated so that its end abuts against the washer 10 and pressure is gradually applied to further tighten the washer 10 against the surface of the drone wing rod 1, restricting the movement of the connecting block 6 on the drone wing rod 1 and enhancing the stability of the entire installation mechanism.

[0028] Each connecting block 6 has a slidably connected gasket 10 on its inner side, and a guide block 11 is fixedly installed on the outside of each gasket 10. Each connecting block 6 has a guide groove 12 on the side corresponding to the guide block 11. The guide block 11 is slidably connected inside the guide groove 12. The main function of the gasket 10 is to increase the contact area between the connecting block 6 and the drone wing rod 1, so that the pressure distribution of the connecting block 6 on the drone wing rod 1 is more uniform, and to avoid excessive local stress from damaging the drone wing rod 1. The guide block 11 slides in the guide groove 12 to guide the movement direction of the gasket 10 and prevent the gasket 10 from shifting within the connecting block 6.

[0029] Each mounting block 4 has an adjusting bolt 13 at both ends, and each adjusting bolt 13 is threaded with a nut 14. The two ends of the protective cover 3 are rotatably connected to the outside of the two adjusting bolts 13. The combination of adjusting bolts 13 and nuts 14 enables flexible adjustment of the position and angle of the protective cover 3. The position of the protective cover 3 can be adjusted according to the actual situation of the fully movable flat tail 2, which improves the flexibility of the use of the protective cover 3.

[0030] Each mounting block 4 has a mounting groove 15 on one side corresponding to the limiting bolt 9. The end of the limiting bolt 9 is engaged inside the mounting groove 15, which can release the connection between the protective cover 3 and the mounting block 4, that is, release the connection between the mounting block 4 and the connecting block 6. Pulling the limiting bolt 9 upward will release the connection between the limiting bolt 9 and the mounting groove 15.

[0031] Two limit blocks 16 are fixedly installed at both ends of each mounting block 4. The adjusting bolt 13 is located between the two limit blocks 16 to limit the rotation range of the protective cover 3, so as to prevent the protective cover 3 from rotating and contacting the all-moving horizontal tail 2 due to the loosening of the nut 14 during the operation of the drone, thus ensuring the normal operation of the drone.

[0032] Each screw 5, adjusting bolt 13, and limit bolt 9 is fitted with a washer 17 to reduce the probability of the screw 5, adjusting bolt 13, and limit bolt 9 becoming loose.

[0033] Working principle:

[0034] First, attach the mounting block 4 to the lower end of the drone wing rod 1, then attach the connecting block 6 to the upper end of the drone wing rod 1 and slide it to the outside of the two screws 5. At this time, the washer 10 is attached to the outside of the drone wing rod 1. Then, thread the nut 7 to the outside of the screw 5 to connect the mounting block 4 and the connecting block 6 together. Then, rotate the limiting bolt 9 so that the limiting bolt 9 abuts against the washer 10. At this time, the washer 10 is tightly attached to the outside of the drone wing rod 1, thereby restricting the movement of the connecting block 6 and the mounting block 4. When the drone performs an airdrop mission, the all-moving horizontal tail 2 rotates according to the flight attitude control requirements. When the drone lands, if the all-moving horizontal tail 2 touches the ground, the protective cover 3 touches the ground first. The protective cover 3 absorbs the impact force through its own deformation, preventing the all-moving horizontal tail 2 from directly hitting the ground and causing cracking or deformation.

[0035] Step 2: If the angle of the protective cover 3 is not suitable, rotate the protective cover 3 to the appropriate position, and then rotate the second nut 14 to make the second nut 14 fit tightly against both ends of the protective cover 3 so as to fix the position of the protective cover 3.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A drone-borne material-dropping ballast device, comprising three drone wing masts (1), each of which is externally fitted with a fully movable horizontal stabilizer (2), characterized in that, Each of the UAV wing rods (1) is provided with a protective cover (3) on its exterior. Each side of the UAV wing rod (1) corresponding to each protective cover (3) is provided with a mounting mechanism for installing the protective cover (3). Each mounting mechanism includes a mounting block (4), a screw (5), a connecting block (6), and a nut (7). The mounting block (4) is snapped onto the outside of the UAV wing rod (1). There are two screws (5), both of which are fixedly installed at both ends of the mounting block (4). The connecting block (6) is slidably connected to the outside of the two screws (5) and snapped onto the outside of the UAV wing rod (1). There are two nuts (7), which are threaded onto the outside of the two screws (5) and used to restrict the movement of the connecting block (6).

2. The unmanned aerial vehicle (UAV) airdrop material balancing wing device as described in claim 1, characterized in that, Each of the connecting blocks (6) has a threaded hole (8) on one side corresponding to the UAV wing rod (1), and each threaded hole (8) has a limit bolt (9) threaded inside for fixing the connecting block (6).

3. The unmanned aerial vehicle (UAV) cargo drop balancing wing device as described in claim 1, characterized in that, Each of the connecting blocks (6) has a slidably connected gasket (10) on its inner side.

4. The unmanned aerial vehicle (UAV) airdrop material balancing wing device as described in claim 3, characterized in that, Each of the gaskets (10) is fixedly mounted with a guide block (11), and each connecting block (6) has a guide groove (12) on one side corresponding to the guide block (11); The guide block (11) is slidably connected inside the guide groove (12).

5. The unmanned aerial vehicle (UAV) cargo drop balancing wing device as described in claim 1, characterized in that, Each of the mounting blocks (4) is provided with an adjusting bolt (13) at both ends, and each adjusting bolt (13) is threaded with a nut (14); The protective cover (3) is rotatably connected to the outside of two adjusting bolts (13) at both ends.

6. The unmanned aerial vehicle (UAV) airdrop material balancing wing device as described in claim 1, characterized in that, Each of the mounting blocks (4) has a mounting groove (15) on one side corresponding to the limiting bolt (9); The end of the limiting bolt (9) is engaged inside the mounting groove (15).

7. The unmanned aerial vehicle (UAV) airdrop material balancing wing device as described in claim 1, characterized in that, Two limiting blocks (16) are fixedly installed at both ends of each of the mounting blocks (4); The adjusting bolt (13) is located between the two limit blocks (16).

8. A drone-borne supplies airdrop ballast device as described in claim 5, characterized in that, Each of the screws (5), adjusting bolts (13), and limiting bolts (9) is fitted with a washer (17).