Unmanned aerial vehicle grabbing device

By designing a drone grasping device with double-sided claws and coupled with the synchronous meshing mechanism of the half gear, the problem of the existing technology being difficult to adapt to objects with large changes in irregular shapes or sizes is solved, and higher grasping stability and adaptability are achieved.

CN223031256UActive Publication Date: 2025-06-27HANGZHOU ZHIXIANG AVIATION TECH CO LTD
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Patent Information

Application Number
CN202422408053.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-06-27
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

Existing drone grabbing devices are difficult to adapt to objects with irregular shapes or large changes in size.

Method used

A drone grabbing device is designed, adopting a structure of double-sided claws with secondary claws, and ensuring the synchronous action of the side claws through the inter-meshing mechanism of the half gear.

Benefits of technology

The device can effectively adapt to objects of different sizes and shapes, improves the stability and success rate of grabbing, and is especially suitable for operations in complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an unmanned aerial vehicle gripping device, which belongs to the technical field of unmanned aerial vehicles and comprises a frame. The motor is fixedly connected to the frame, and the output end of the motor is fixedly connected with blades; the connecting seat is fixedly connected to the lower end of the frame; mounting seats are fixedly connected to the lower ends of the connecting seats; the side frame is fixedly connected to the lower end of the connecting seat, two side claws are rotationally connected to the side frame through a rotating shaft, half gears are fixedly connected to the side ends of the two side claws respectively, and the two half gears are meshed with each other; the steering engine is fixedly connected to the lower end of the mounting base, the output end of the mounting base is connected with the side claws, and the structure that the two side claws are matched with the auxiliary claws is adopted in the design, so that the grabbing device has higher adaptability. No matter how the size and the shape of a target object are, effective grabbing can be achieved through different combinations of the side claws and the auxiliary claws.
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Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and particularly relates to a grabbing device for an unmanned aerial vehicle. Background Technique

[0002] With the development of unmanned aerial vehicle technology and the continuous expansion of its application fields, unmanned aerial vehicles have gradually extended from their initial military uses to civilian fields, such as agricultural spraying, logistics distribution, power inspection, environmental monitoring, and many other aspects. In these applications, the grabbing ability of unmanned aerial vehicles has become one of the key technologies for realizing automated operations.

[0003] At present, most of the grabbing devices for unmanned aerial vehicles on the market adopt the form of robotic arms or grippers to achieve the grabbing and handling of objects.

[0004] The existing grabbing devices generally can only effectively grab objects with specific sizes and shapes, and it is difficult to adapt to objects with irregular shapes or large size variations. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a grabbing device for an unmanned aerial vehicle, aiming to solve the problem that the existing grabbing devices in the prior art generally can only effectively grab objects with specific sizes and shapes, and it is difficult to adapt to objects with irregular shapes or large size variations.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A grabbing device for an unmanned aerial vehicle, comprising:

[0008] A frame;

[0009] A motor, the motor is fixedly connected to the frame, and a blade is fixedly connected to the output end of the motor;

[0010] A connecting seat, the connecting seat is fixedly connected to the lower end of the frame; an installation seat is fixedly connected to the lower end of the connecting seat;

[0011] A side frame, the side frame is fixedly connected to the lower end of the connecting seat, two side claws are rotatably connected to the side frame through a rotating shaft, semi-gears are respectively fixedly connected to the side ends of the two side claws, and the two semi-gears are meshed with each other;

[0012] A servo motor, the servo motor is fixedly connected to the lower end of the installation seat, and the output end of the installation seat is connected to the side claw.

[0013] As a preferred scheme of the utility model, side plates are fixedly connected to the side ends of the two side claws, and auxiliary claws are fixedly connected to the side ends of the side plates.

[0014] As a preferred embodiment of the present utility model, a connecting column is fixedly connected to the side end of the secondary claw, and the connecting column is connected to the anti-slip opening through a bolt.

[0015] As a preferred embodiment of the present utility model, a support frame is fixedly connected to the lower end of the frame.

[0016] As a preferred embodiment of the present utility model, a controller is fixedly connected to the upper end of the frame.

[0017] As a preferred embodiment of the present utility model, a base is connected to the frame.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. In this solution, the design adopts a structure with double-sided claws and secondary claws, making the grasping device have stronger adaptability. Regardless of the size and shape of the target object, effective grasping can be achieved through different combinations of side claws and secondary claws. This design is particularly suitable for operations in complex environments, such as outdoor rescue, material distribution, etc., and can significantly improve the success rate of tasks.

[0020] 2. In this solution, the meshing mechanism of the semi-gears ensures the synchronous movement of the two side claws, which not only improves the stability during the grasping process but also reduces the probability of grasping failure caused by uneven unilateral force. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0022] Figure 1 is a perspective view of the present utility model;

[0023] Figure 2 is an exploded view of the present utility model;

[0024] Figure 3 is of the present utility model Figure 2 an enlarged view of the connection seat;

[0025] Figure 4 is of the present utility model Figure 3 an exploded view of the connection seat.

[0026] In the figure: 1. Frame; 2. Motor; 3. Blade; 4. Base; 5. Battery; 6. Controller; 7. Support frame; 8. Connection seat; 9. Side frame; 10. Mounting seat; 11. Side claw; 12. Semi-gear; 13. Anti-slip opening; 14. Side plate; 15. Connecting column; 16. Secondary claw; 17. Servo. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Please refer to Figures 1-4 , the present invention provides the following technical solutions:

[0030] An unmanned aerial vehicle grasping device, comprising:

[0031] Frame 1;

[0032] Motor 2, the motor 2 is fixedly connected to the frame 1, and the output end of the motor 2 is fixedly connected with a blade 3;

[0033] Connecting seat 8, the connecting seat 8 is fixedly connected to the lower end of the frame 1; the lower end of the connecting seat 8 is fixedly connected with a mounting seat 10;

[0034] Side frame 9, the side frame 9 is fixedly connected to the lower end of the connecting seat 8, and two side claws 11 are rotatably connected to the side frame 9 through a rotating shaft. Semi-gears 12 are respectively fixedly connected to the side ends of the two side claws 11, and the two semi-gears 12 are meshed with each other;

[0035] Servo 17, the servo 17 is fixedly connected to the lower end of the mounting seat 10, and the output end of the mounting seat 10 is connected to the side claw 11.

[0036] In a specific embodiment of the present invention, the frame 1 serves as the basic structure of the entire device, carrying all the components and ensuring the stability and firmness of the device. The design of the frame needs to consider lightweight and strength for the load of the unmanned aerial vehicle. The motor 2 provides power through the blade 3 connected to its output end for driving the flight of the unmanned aerial vehicle. The output end of the motor is directly fixedly connected to the blade, ensuring the high efficiency of power transmission. The combination of the motor and the blade enables the unmanned aerial vehicle to hover and move stably. The connecting seat 8 is fixedly connected to the lower end of the frame 1 and serves as the main support structure of the grasping device. The lower end of the connecting seat 8 is fixedly connected with a mounting seat 10 for mounting the servo 17 and other grasping components. The design of the mounting seat 10 ensures the firm installation of the servo and other components. The side frame 9 is fixedly connected to the lower end of the connecting seat 8, and two side claws 11 are rotatably connected to it through a rotating shaft. The design of the side claws 11 enables the grasping device to open and close as needed, thereby realizing the grasping of an object. The side claws are connected through a rotating shaft and can be opened and closed under the drive of the servo.

[0037] Semicircular gears 12 are fixedly connected to the side ends of the two side claws 11 respectively, and the two semicircular gears mesh with each other. This design ensures the synchronous opening and closing of the two side claws 11, making the grasping action smoother and more reliable. Through the meshing of the semicircular gears, the symmetry and balance of the two side claws during object grasping can be guaranteed. The servo motor 17 is fixedly connected to the lower end of the mounting base 10, and its output end is connected to the side claw 11. The function of the servo motor 17 is to drive the opening and closing action of the side claw 11 through the rotation of its output end. The precise control of the servo motor makes the grasping action more accurate and capable of adapting to objects of different sizes and shapes. Through the control of the servo motor 17, the side claw 11 can perform the opening and closing action to grasp the object. The design of the semicircular gear 12 ensures the synchronous movement of the two side claws and improves the stability of grasping.

[0038] For details, please refer to Figures 1-4 Side plates 14 are fixedly connected to the side ends of the two side claws 11, and auxiliary claws 16 are fixedly connected to the side ends of the side plates 14.

[0039] In this embodiment: The design of the side plate 14 increases the structural stability and rigidity of the side claw 11, making the side claw not easily deformed or bent during grasping. The side plate 14 is connected to the side claw 11 by a fixed connection method to form a more solid overall structure. The design of the auxiliary claw 16 enables the grasping device to better adapt to objects of different shapes and sizes. The auxiliary claw 16 is connected to the side claw 11 through the side plate 14 and can perform corresponding opening and closing actions as needed, working in coordination with the main side claw 11 to provide a wider grasping range and stronger gripping force.

[0040] For details, please refer to Figures 1-4 A connecting column 15 is fixedly connected to the side end of the auxiliary claw 16, and the connecting column 15 is connected to the anti-slip opening 13 by bolts.

[0041] In this embodiment: The design of the connecting column 15 enables the auxiliary claw 16 to be more firmly connected to the side plate 14 or the side claw 11. The connecting column 15 not only provides a mechanical connection point but also enhances the structural strength of the auxiliary claw to ensure that the auxiliary claw will not easily fall off or deform during grasping. By connecting the connecting column 15 to the anti-slip opening 13 with bolts, the auxiliary claw 16 can be disassembled or adjusted when needed. The design of the anti-slip opening 13 is intended to increase the friction when grasping an object to prevent the object from slipping. The bolt connection method not only ensures the stability of the connection but also provides flexibility, facilitating maintenance and replacement of components.

[0042] For details, please refer to Figures 1-4 A support frame 7 is fixedly connected to the lower end of the frame 1.

[0043] In this embodiment: The design of the support frame 7 aims to provide additional support, enhancing the structural stability and reliability of the entire device. By fixedly connecting the support frame 7 to the lower end of the frame 1, it can ensure that when the drone lands or hovers, the grasping device can more stably support its own weight and the grasped object.

[0044] For details, please refer to Figures 1-4 , and a controller 6 is fixedly connected to the upper end of the frame 1.

[0045] In this embodiment: The design of the controller 6 aims to centrally manage the various functions of the drone grasping device. By fixedly connecting it to the upper end of the frame 1, it can ensure that the controller is in a relatively safe and easily accessible position, facilitating installation, maintenance, and operation.

[0046] For details, please refer to Figures 1-4 , and a base 4 is connected to the frame 1.

[0047] In this embodiment: The design of the base 4 aims to provide a more stable installation platform, enabling the drone grasping device to be more firmly fixed to the drone body. The base not only enhances the overall structural stability but also facilitates installation and disassembly.

[0048] The working principle and usage process of the present utility model: First, the drone starts, and the controller 6 conducts self-checks and ensures that all components such as the motor 2 and the servo 17 are in normal working conditions. The controller checks whether the battery power is sufficient and whether the wireless communication module can receive commands normally. By rotating the blades 3 with the motor 2, the drone can take off and reach the predetermined height. During this process, the controller 6 continuously monitors the attitude of the drone to ensure smooth flight. Sensors such as GPS and vision sensors installed on the drone are used to locate the target object to be grasped. When the drone reaches above the target position, the controller 6 sends a signal to the servo 17, causing the servo 17 to drive the mounting seat 10. The movement of the mounting seat 10 drives the side claws 1 to rotate around the rotating shaft. Since the half gears 12 on the two side claws 11 mesh with each other, the two side claws 11 will move inwards or outwards synchronously. If the target object is large or has a special shape, the auxiliary claws 16 can provide additional grasping force. Through the cooperation of the connecting column 15 and the anti-slip opening 13, the grasping becomes more stable. After grasping, the drone will carry the grasped object to the designated location. The support frame 7 can help maintain the stability of the grasping device, especially in the case of strong winds. After reaching the destination, the servo 17 receives the signal from the controller 6 again, causing the side claws 11 to open and release the grasped object. If the auxiliary claws 16 are involved in the grasping, they also need to be controlled to open. After the item is successfully released, the drone returns to the take-off point or lands at the designated location.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A drone grabbing device, characterized in that: include: Framework (1); A motor (2), the motor (2) being fixedly connected to the frame (1), and the output end of the motor (2) being fixedly connected to a blade (3); A connecting seat (8), the connecting seat (8) being fixedly connected to the lower end of the frame (1); the lower end of the connecting seat (8) being fixedly connected to a mounting seat (10); A side frame (9), the side frame (9) is fixedly connected to the lower end of the connecting seat (8), the side frame (9) is rotatably connected to two side claws (11) via a rotating shaft, the side ends of the two side claws (11) are respectively fixedly connected to half gears (12), and the two half gears (12) are meshed with each other; A steering engine (17) is fixedly connected to the lower end of the mounting seat (10), and the output end of the mounting seat (10) is connected to the side claw (11).

2. The drone grabbing device according to claim 1, characterized in that: The side ends of the two side claws (11) are fixedly connected to a side plate (14), and the side ends of the side plate (14) are fixedly connected to a secondary claw (16).

3. The drone grabbing device according to claim 2, characterized in that: The side end of the auxiliary claw (16) is fixedly connected to a connecting column (15), and the connecting column (15) is connected to the anti-slip opening (13) via bolts.

4. The drone grabbing device according to claim 3, characterized in that: The lower end of the frame (1) is fixedly connected to a support frame (7).

5. The drone grabbing device according to claim 4, characterized in that: The upper end of the frame (1) is fixedly connected with a controller (6).

6. The drone grabbing device according to claim 5, characterized in that: The frame (1) is connected to a base (4).