Unmanned aerial vehicle material throwing device
By designing a combined structure of servo motors, mounting components, limit components, and anti-return components for the drone material delivery device, the problem of small load capacity of the drone delivery device was solved, enabling stable mounting and delivery of 20kg materials and improving the efficiency of relief material transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-13
AI Technical Summary
Existing drone-launched delivery systems are prone to instability when carrying heavy loads of supplies, which affects the efficiency of transporting relief materials.
A drone material dropper was designed, which adopts a combination structure of servo motor, hanging component, limit component and anti-return component. Through limit cooperation and transmission connection, it can stably hang and drop materials, with a load capacity of up to 20kg.
It improves the efficiency of material transfer by drones in disaster relief and rescue processes, and can stably hang and drop materials weighing up to 20kg, thereby improving rescue efficiency.
Smart Images

Figure CN223990157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV material delivery device. Background Technology
[0002] With the development of drone technology, drones have been widely used due to their safety, speed, and efficiency. Currently, drones can be seen in fields such as aerial photography, agriculture, plant protection, mini selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, and film and television shooting, which have significantly promoted the improvement of work efficiency.
[0003] In the field of disaster relief, drones can carry relief supplies and use their onboard cameras to make timely and accurate assessments of the situation in disaster areas. When people in need of rescue are observed, relief supplies can be delivered accurately and promptly, thus playing a positive role in improving rescue efficiency and ensuring the safety of rescuers and those awaiting rescue.
[0004] Existing drones typically use drop devices to carry relief supplies. During the process, the drone transmits and receives signals to control the drop device. When the drone reaches the designated location, the drop device can drop the supplies, thus achieving the rescue. However, due to their structural design, existing drop devices generally have a relatively small load capacity, around 10 kg. When carrying heavier supplies, they are prone to instability, which hinders the improvement of actual rescue operation efficiency. Therefore, a drop device that can greatly improve the efficiency of relief supply transportation during disaster relief is an urgent problem to be solved. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of the existing technology by providing a drone-based material delivery device, which can effectively improve the efficiency of material transfer during disaster relief and rescue operations.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a drone material thrower, comprising a throwing device, wherein the throwing device includes a housing, a servo motor is fixedly installed in the housing and a hanging member, a limiting member and a check member are rotatably installed therein; the servo motor is drivenly connected to one end of the limiting member, the other end of the limiting member is limited and engaged with one end of the hanging member, and the check member is engaged with the other end of the hanging member.
[0007] Furthermore, the housing is provided with a first mounting part, a second mounting part, and a third mounting part; the hanging member is rotatably mounted on the first mounting part, the limiting member is rotatably mounted on the second mounting part, and the check member is rotatably mounted on the third mounting part; the first mounting part is located in the middle of the hanging member, the second mounting part is located in the middle of the limiting member, the third mounting part is located at one end of the check member, and the other end of the check member cooperates with the hanging member.
[0008] Furthermore, the housing is also provided with a first limiting part, a second limiting part, a third limiting part, and a fourth limiting part; a first retaining ring is installed through the first mounting part, the first limiting part, and the hanging member; a second retaining ring is installed through the second mounting part, the second limiting part, and the limiting member; and a third retaining ring is installed through the third mounting part, the third limiting part, the fourth limiting part, the check member, and the housing.
[0009] Furthermore, the servo motor is connected to the cam, and the cam is connected to one end of the limiting member via a connecting rope.
[0010] Furthermore, when the hanging member and the limiting member are in a limiting engagement, the engagement between the check member and the hanging member is released under the action of external force, at which point materials can be hung or placed; when the external force is lost, the check member is reset under the action of the third retaining spring.
[0011] Furthermore, when the check valve is reset, the gap between the check valve and the holding member is smaller than the diameter of the material hoisting rope.
[0012] Furthermore, when the servo motor drives the limiting member, the limiting member releases its limiting engagement with the holding member, and the holding member rotates under the action of the first retaining spring to throw the material down; when the servo motor releases the transmission of the limiting member, the limiting member resets under the action of the second retaining spring.
[0013] Furthermore, when the limiting member is reset, when the limiting member and the hanging member are in a limiting engagement, the limiting member and the hanging member are perpendicularly tangent at the contact point.
[0014] Furthermore, the throwing device is connected to the mounting box, and is fixedly connected to the quick-release connector above the mounting box.
[0015] Furthermore, the mounting box includes a box body, a box cover plate on the top of the box body, and a box bottom plate on the bottom of the box body; the box cover plate is fixedly connected to a quick-release connector; the housing of the throwing device passes through the box bottom plate and is fixedly connected to the box cover plate; a control main board is provided in the box body, and the control main board is connected to the servo motor and the quick-release connector in the throwing device respectively.
[0016] The beneficial effects of this utility model are as follows: The limiting and cooperating structure design of the hanging part and the limiting part of this utility model enables the utility model to transport materials with a large weight during the material transfer process. The effective load capacity of a single throwing device can reach 20kg, and multiple throwing devices can be used together, which has a positive effect on improving the efficiency of material transfer. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an exploded view of the overall structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the overall structure of the throwing device of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of the throwing device of this utility model;
[0021] Figure 5 This is a schematic diagram of the shell structure of the throwing device of this utility model.
[0022] The names corresponding to each mark in the diagram:
[0023] 1. Quick-release connector; 2. Mounting box; 21. Box cover; 22. Box body; 23. Box bottom plate; 3. Throwing device; 31. Housing; 311. First mounting part; 312. Second mounting part; 313. Third mounting part; 314. First limiting part; 315. Second limiting part; 316. Third limiting part; 317. Fourth limiting part; 32. Servo motor; 33. Hanging component; 34. Limiting component; 35. Anti-reverse component; 36. Connecting rope; 37. First retaining ring; 38. Second retaining ring; 39. Third retaining ring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.
[0025] Embodiments of this utility model:
[0026] like Figure 1-5As shown, in this embodiment, an installation box 2 is provided, and a quick-release connector 1 is fixedly installed on the installation box 2; the drone quick-release component includes a quick-release male connector and a quick-release female connector. In this embodiment, the quick-release connector 1 is a quick-release male connector, wherein the quick-release female connector is connected to the drone body. The quick-release male connector cooperates with the quick-release female connector to install the installation box 2 on the drone and transmit electrical signals.
[0027] The mounting box 2 includes a box body 22, a box cover 21 on the top of the box body 22, the box cover 21 being fixedly connected to the quick-release connector 1, a box bottom plate 23 on the bottom of the box body 22, and a throwing device 3 on the bottom of the box bottom plate 23. In this embodiment, six throwing devices 3 are provided. The top of the throwing device 3 passes through the box bottom plate 23 and is fixedly connected to the box cover 21. In this embodiment, a control motherboard is installed in the mounting box 2. The control motherboard is connected to each throwing device 3 and simultaneously connected to the quick-release connector 1 to transmit signals with the drone.
[0028] The throwing device 3 is provided with a housing 31, the upper part of which is fixedly connected to the box cover plate 21. The housing 31 is provided with a first mounting part 311, a second mounting part 312 and a third mounting part 313. A hanging member 33 is rotatably mounted through the first mounting part 311, a limiting member 34 is rotatably mounted through the second mounting part 312 and a check member 35 is rotatably mounted through the third mounting part 313.
[0029] A first limiting part 314, a second limiting part 315, a third limiting part 316, and a fourth limiting part 317 are provided in the housing 31; for example Figure 4 As shown, a first retaining ring 37 is installed via a first mounting part 311, a first limiting part 314, and a hanging member 33; a second retaining ring 38 is installed via a second mounting part 312, a second limiting part 315, and a limiting member 34; a third retaining ring 39 is installed via a third mounting part 313, a third limiting part 316, a fourth limiting part 317, a check member 35, and a housing 31; a servo motor 32 is installed in the housing 31, the front end of the servo motor 32 is connected to a cam, and the cam is connected to the limiting member 34 via a connecting rope 36.
[0030] In this embodiment, under the drive of the servo motor 32, the limiting member 34 rotates counterclockwise as shown in the figure. When the power of the servo motor 32 is lost, the limiting member 34 rotates clockwise as shown in the figure under the action of the second retaining spring 38. The first retaining spring 37 allows the holding member 33 to rotate counterclockwise as shown in the figure after the limiting member 34 is lost. The check member 35 rotates counterclockwise as shown in the figure under the action of external force. When the external force is lost, it rotates clockwise as shown in the figure under the action of the third retaining spring 39. The servo motor 32 is connected to the control main board in the mounting box 2.
[0031] The principle of this utility model is as follows:
[0032] In use, this utility model first connects to the drone via the quick-release connector 1. The quick-release components for the drone involved in the process are existing and will be easily understood by those skilled in the art, so they will not be described in detail.
[0033] When the material is being held, the front end of the holding member 33 is pushed upwards, causing it to rotate clockwise as shown in the diagram. When the end of the holding member 33 rotates to contact the limiting member 34, the limiting member 34 rotates counterclockwise under the action of the holding member 33. When the end of the holding member 33 rotates to contact the second limiting part 315, the holding member 33 can no longer rotate. At this point, the holding member 33 loses its force on the limiting member 34, and the limiting member 34 then... The spring 38 rebounds and, under the action of the second limiting post, can only rebound to a specific position. At this position, the contact point between the front end of the limiting member 34 and the end of the hanging member 33 is perpendicularly tangent. Due to the limiting and cooperating structure design of this utility model, when a heavy material is hung on the hanging member 33, the hanging member 33 and the limiting member 34 will not disengage. This allows the single load capacity of the throwing device of this utility model to reach 20kg, which helps to improve the efficiency of rescue material transportation.
[0034] After the above operations are completed, the materials can be hung. Push the check valve 35 by hand. The check valve 35 rotates counterclockwise as shown in the figure. At this time, the materials can be hung on the hanging part 33. After releasing your hand, under the action of the third retaining spring 39, the check valve 35 rebounds and is restricted to a certain position by the housing 31. At this position, the front end of the check valve 35 is in contact with the front end of the hanging part 33 (or there is a small gap), which can effectively prevent the hanging rope connecting the materials from detaching from the hanging part 33.
[0035] After the drone delivers the supplies to the designated location, the ground transmits control signals to the drone via remote control. The drone then transmits signals to servo motor 32 via quick-release components and the control motherboard. At this point, servo motor 32 rotates. Figure 4 As shown, the servo motor 32 drives the cam to rotate clockwise and automatically resets after rotating a certain angle. After the cam rotates a certain angle, the cam drives the limiting member 34 to rotate counterclockwise through the connecting rope 36. As a result, the limiting effect of the front end of the limiting member 34 on the hanging member 33 disappears. Under the action of the first retaining spring 37, the hanging member 33 rotates counterclockwise, thereby dropping the materials. During this process, due to the loss of power from the servo motor 32, the limiting member 34 springs back to its initial position under the action of the second retaining spring 38. After the UAV drops the materials, it returns and repeats the above operation to transfer the next batch of materials.
Claims
1. A drone material thrower, characterized by: The application relates to a throwing device (3) which comprises a shell (31), a rudder (32) fixedly installed in the shell (31), a hanging piece (33), a limiting piece (34) and a check piece (35) rotatably installed in the shell (31), the rudder (32) is in transmission connection with one end of the limiting piece (34), the other end of the limiting piece (34) is in limiting cooperation with one end of the hanging piece (33), and the check piece (35) cooperates with the other end of the hanging piece (33).
2. The unmanned aerial vehicle cargo thrower of claim 1, wherein: The shell (31) is provided with a first mounting portion (311), a second mounting portion (312) and a third mounting portion (313), the hanging piece (33) is rotatably installed on the first mounting portion (311), the limiting piece (34) is rotatably installed on the second mounting portion (312), and the check piece (35) is rotatably installed on the third mounting portion (313); the first mounting portion (311) is located at the middle of the hanging piece (33), the second mounting portion (312) is located at the middle of the limiting piece (34), the third mounting portion (313) is located at one end of the check piece (35), and the other end of the check piece (35) cooperates with the hanging piece (33).
3. The unmanned aerial vehicle cargo thrower of claim 2, wherein: The shell (31) is further provided with a first limiting portion (314), a second limiting portion (315), a third limiting portion (316) and a fourth limiting portion (317); a first clamping spring (37) is installed through the first mounting portion (311), the first limiting portion (314) and the hanging piece (33); a second clamping spring (38) is installed through the second mounting portion (312), the second limiting portion (315) and the limiting piece (34); and a third clamping spring (39) is installed through the third mounting portion (313), the third limiting portion (316), the fourth limiting portion (317), the check piece (35) and the shell (31).
4. The unmanned aerial vehicle cargo thrower of claim 3, wherein: The rudder (32) is connected with a cam, and the cam is in transmission connection with one end of the limiting piece (34) through a connecting rope (36).
5. The unmanned aerial vehicle cargo thrower of claim 3, wherein: When the hanging piece (33) is in limiting cooperation with the limiting piece (34) under the action of an external force, the cooperation between the check piece (35) and the hanging piece (33) is released, and at this moment, the hanging and placing of materials can be carried out; after the external force is lost, the check piece (35) is reset under the action of the third clamping spring (39).
6. The unmanned aerial vehicle cargo thrower of claim 5, wherein: When the check piece (35) is reset, the gap between the check piece (35) and the hanging piece (33) is smaller than the diameter of a material sling.
7. The unmanned aerial vehicle cargo thrower of claim 3, wherein: When the rudder (32) drives the limiting piece (34), the limiting cooperation between the limiting piece (34) and the hanging piece (33) is released, and the hanging piece (33) rotates to throw the materials under the action of the first clamping spring (37); when the rudder (32) drives the limiting piece (34), the limiting piece (34) is reset under the action of the second clamping spring (38).
8. The unmanned aerial vehicle cargo thrower of claim 7, wherein: When the limiting piece (34) is reset, when the limiting piece (34) is in limiting cooperation with the hanging piece (33), the limiting piece (34) and the hanging piece (33) are perpendicularly tangent at the contact position.
9. The unmanned aerial vehicle cargo thrower of claim 1, wherein: The throwing device (3) is connected with a mounting box (2), and the mounting box (2) is fixedly connected with the quick release connector (1).
10. The unmanned aerial vehicle material casting device according to any one of claims 1-9, characterized in that: The installation box (2) comprises a box body (22), a box cover plate (21) arranged above the box body (22), and a box bottom plate (23) arranged below the box body (22); the box cover plate (21) is fixedly connected with the quick release connector (1); the shell (31) of the throwing device (3) is fixedly connected with the box cover plate (21) through the box bottom plate (23); a control mainboard is arranged in the box body (22) and connected with the rudder (32) in the throwing device (3) and the quick release connector (1) respectively.