Low altitude rotor capture netting device

Abstract

The utility model provides a kind of low altitude rotor capture net cover device, it is related to unmanned aerial vehicle capture technical field, including unmanned aerial vehicle main body, the bottom of unmanned aerial vehicle main body is fixedly connected with mounting pole, the end of mounting pole is equipped with cavity, the inboard wall of mounting pole is fixedly connected with fixed block, the outer side wall of fixed block is fixedly connected with annular spring, annular spring is fixedly connected with limit plate in one end away from fixed block, the inboard wall of mounting pole is fixedly connected with fixed column, the inboard wall of fixed column is rotatably connected with spherical rod;The cooperation of mounting pole, cavity, fixed block, annular spring, limit plate, fixed column, spherical rod, connecting rod, mounting rod, net bag is used, when unmanned aerial vehicle main body is captured aircraft, net bag can be timely separated from unmanned aerial vehicle main body, so as to avoid net bag covering aircraft to pull unmanned aerial vehicle main body, resulting in the change of the flight attitude of unmanned aerial vehicle main body, so as to avoid unmanned aerial vehicle main body to crash when capturing aircraft.

Description

Technical Field

[0001] This utility model relates to the field of drone capture technology, specifically a low-altitude rotor capture net device. Background Technology

[0002] With the rapid development of drone technology, unauthorized "black flight" aircraft pose a serious threat to the safety of low-altitude airspace. They may not only interfere with the normal operation of civil aviation and crash into tall buildings, but also be involved in serious incidents such as privacy violations, reconnaissance of sensitive areas, and even terrorist attacks. However, under current technological conditions, when a drone uses a net to capture a target, the collision between the net and the target aircraft generates a huge impact force. This impact force is transmitted to the drone through the connecting structure, causing a drastic change in its flight attitude. If the flight control system fails to compensate and correct in time, it is very easy for the drone to go out of control, roll, or even crash. This not only leads to the failure of the capture mission, but may also cause secondary damage due to the drone crash, such as injuring people, damaging ground facilities, or causing fires, significantly increasing the risk and cost of performing the mission. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a low-altitude rotor capture net device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes a drone body, with a mounting rod fixedly connected to its bottom. A cavity is formed at the end of the mounting rod. A fixing block is fixedly connected to the inner wall of the mounting rod, and a ring spring is fixedly connected to the outer wall of the fixing block. A limit plate is fixedly connected to the end of the ring spring away from the fixing block. A fixing post is fixedly connected to the inner wall of the mounting rod, and a spherical rod is rotatably connected to the inner wall of the fixing post. A connecting rod is sleeved on the outer wall of the spherical rod, and a hanging rod is provided at the end of the connecting rod away from the spherical rod. A net is detachably connected to the bottom of the hanging rod.

[0005] A pressing block is fixedly connected to the outer wall of the connecting rod near the limiting plate. The pressing block has a triangular cross-section. By setting the pressing block, the connecting rod can press the limiting plate when it rotates with the ball rod.

[0006] The outer side wall of the spherical rod has an installation groove, and the inner side wall of the spherical rod is rotatably connected to a spring piece. One end of the spring piece is fixedly connected to an arc-shaped protrusion, and the outer side wall of the end of the spring piece near the arc-shaped protrusion is provided with a return spring. By setting the installation groove, spring piece, and arc-shaped protrusion, it is convenient to limit the position of the connecting rod and prevent the connecting rod from directly detaching from the spherical rod without external force during use, thereby preventing the net bag from falling off directly during use.

[0007] The outer side wall of the connecting rod has a locking interface, and the connecting rod is engaged with the arc-shaped protrusion through the locking interface. By setting the locking interface, the stability between the connecting rod and the ball rod can be improved.

[0008] The outer side wall of the mounting rod has a slot, and the end of the net bag near the mounting rod is fixedly connected to a locking block. The mounting rod is detachably connected to the net bag through the slot and the locking block. By setting the slot and the locking block, it is easy to replace the net bag and avoid the net bag becoming unusable due to wear.

[0009] The end of the net furthest from the drone body is detachably connected to a counterweight rod, and a counterweight block is fixedly connected to the end of the counterweight rod. By setting the counterweight rod and the counterweight block, the net is prevented from being twisted by wind force during the flight of the drone body.

[0010] An extension rod is fixedly connected to the outer wall of the wing of the drone body, and a collision protection net is fixedly connected to the outer wall of the extension rod. By setting up the extension rod and the collision protection net, the drone body can be protected to avoid collisions and crashes with other aircraft during flight.

[0011] This invention provides a low-altitude rotor capture net device. It has the following advantages: By using a combination of mounting rods, cavities, fixing blocks, ring springs, limiting plates, fixing columns, ball rods, connecting rods, hanging rods, and nets, the net can detach from the drone body in time when capturing the aircraft. This prevents the net from pulling on the drone body after covering the aircraft, which could alter the drone's flight attitude and thus prevent the drone body from crashing while capturing the aircraft.

[0012] By using the mounting rod, net, slot, block, counterweight rod, and counterweight block in combination, the operator can easily replace the net regularly, preventing it from breaking after prolonged use and thus improving the capture efficiency of the drone. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a low-altitude rotor capture net device provided by this utility model; Figure 2 A schematic diagram of the mounting rod and related parts of a low-altitude rotor capture net device provided by this utility model; Figure 3 A schematic diagram of the spherical rod and related parts of a low-altitude rotor capture net device provided by this utility model; Figure 4 A schematic diagram of the spring clip and related parts of a low-altitude rotor capture net device provided by this utility model; Figure 5 A schematic diagram of the limiting plate and related parts of a low-altitude rotor capture net device provided by this utility model; Figure 6 A schematic diagram of the counterweight and related parts of a low-altitude rotor capture net device provided by this utility model.

[0014] Legend: 1. Drone body; 2. Mounting rod; 3. Cavity; 4. Fixing block; 5. Ring spring; 6. Limiting plate; 7. Fixing column; 8. Ball rod; 9. Connecting rod; 10. Mounting rod; 11. Capture net; 12. Mounting slot; 13. Spring piece; 14. Arc-shaped protrusion; 15. Snap-fit ​​interface; 16. Extrusion block; 17. Snap-fit ​​groove; 18. Snap-fit ​​block; 19. Counterweight rod; 20. Counterweight block; 21. Extension rod; 22. Collision-proof net. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1-6As shown: A low-altitude rotor capture net device includes a drone body 1. A mounting rod 2 is fixedly connected to the bottom of the drone body 1. A cavity 3 is formed at one end of the mounting rod 2, and cavities 3 are formed at both ends of the mounting rod 2. Taking one end of the mounting rod 2 as an example, a rotating slot is formed on the outer wall of the mounting rod 2. A fixing block 4 is fixedly connected to the inner wall of the mounting rod 2. The fixing block 4 is located inside the cavity 3. Three sets of annular springs 5 ​​are fixedly connected to the outer wall of the fixing block 4. The three sets of annular springs 5 ​​are located on both sides of the fixing block 4. Limiting plates 6 are fixedly connected to the ends of the three sets of annular springs 5 ​​away from the fixing block 4, and both limiting plates 6 are located inside the cavity 3. The two limiting plates 6 are controlled by the elastic force of the three sets of annular springs 5. Under the action, they abut against each other. The contact point of the two limiting plates 6 is located at the rotating slot opened on the outer wall of the mounting rod 2, so as to close the rotating slot opened on the outer wall of the mounting rod 2. The inner wall of the mounting rod 2 is fixedly connected to a fixing post 7. The outer wall of the fixing post 7 near the rotating slot is provided with an opening. The inner wall of the fixing post 7 is rotatably connected to a ball rod 8. One end of the ball rod 8 inside the fixing post 7 is set as a ball, and the other end of the ball rod 8 outside the fixing post 7 is set as a round rod, and fits with the opening provided on the outer wall of the fixing post 7. A connecting rod 9 is sleeved on the outer wall of the ball rod 8. The connecting rod 9 is located inside the mounting rod 2. The end of the connecting rod 9 away from the ball rod 8 is provided with a hanging rod 10. The bottom of the hanging rod 10 is detachably connected to a net bag 11.

[0017] like Figure 3 and Figure 4 As shown: A pressing block 16 is fixedly connected to the outer wall of the connecting rod 9 near the limiting plate 6. The pressing block 16 is located on the side of the connecting rod 9 near the two limiting plates 6, and the cross-section of the pressing block 16 is triangular. When the connecting rod 9 rotates, the end of the pressing block 16 away from the connecting rod 9 first contacts the outer wall of the two limiting plates 6. At this time, the apex of the triangle of the pressing block 16 is located at the contact point of the two limiting plates 6. When the connecting rod 9 rotates, the pressing block 16 first squeezes the two limiting plates 6, so that the two pressing blocks 16 gradually retract into the cavity 3.

[0018] like Figure 2 and Figure 3 As shown: The outer side wall of the ball rod 8 is provided with a mounting groove 12, and there are two mounting grooves 12. The inner side wall of the ball rod 8 is rotatably connected with a spring piece 13, and there are two spring pieces 13. The two spring pieces 13 are located inside the two mounting grooves 12 respectively, and one end of the two spring pieces 13 is fixedly connected to an arc-shaped protrusion 14. The outer side wall of the two spring pieces 13 near the arc-shaped protrusion 14 is provided with a return spring.

[0019] like Figure 3As shown: The outer wall of the connecting rod 9 has two locking interfaces 15, which are symmetrically distributed on the outer wall of the connecting rod 9. The connecting rod 9 is engaged with the arc-shaped protrusions 14 through the locking interfaces 15. In use, the operator puts the connecting rod 9 on the outer wall of the ball rod 8. At this time, the end of the connecting rod 9 near the locking interface 15 gradually squeezes the two spring pieces 13, causing the two spring pieces 13 to retract into the two mounting slots 12. As the connecting rod 9 is pushed forward, the two locking interfaces 15 on the outer wall of the connecting rod 9 gradually correspond to the positions of the two arc-shaped protrusions 14. At this time, under the action of the two return springs, the two arc-shaped protrusions 14 spring up and limit the connecting rod 9 through the two locking interfaces 15.

[0020] like Figure 6 As shown: The outer side wall of the mounting rod 10 is provided with a slot 17, and the end of the net bag 11 near the mounting rod 10 is fixedly connected with a block 18. The mounting rod 10 is detachably connected to the net bag 11 through the slot 17 and the block 18. During maintenance, the operator can replace the net bag 11 to avoid the inability to capture the aircraft in time if the net bag 11 is damaged.

[0021] like Figure 6 As shown: The end of the net 11 away from the main body of the drone 1 is detachably connected to a counterweight rod 19. The end of the counterweight rod 19 is fixedly connected to a counterweight block 20. There are two counterweight blocks 20, which are located at the two ends of the counterweight rod 19 respectively, so that the net 11 will be twisted by the wind during the flight of the main body of the drone 1, thereby preventing the net 11 from failing to capture the aircraft in time.

[0022] like Figure 1 As shown: An extension rod 21 is fixedly connected to the outer wall of the wing of the drone body 1. Multiple extension rods 21 are provided, and the multiple extension rods 21 are located under the multiple wings respectively. A collision protection net 22 is fixedly connected to the outer wall of the multiple extension rods 21. The collision protection net 22 surrounds the wing of the drone body 1 to protect the wing blades of the drone body 1 and avoid collisions during the capture of the aircraft, thereby preventing the drone body 1 from crashing during flight.

[0023] Working principle: like Figure 1-6 As shown: In use, the operator engages the net bag 11 with the mounting rod 10 via the slot 17 and the locking block 18. Further, the connecting rod 9 is inserted into the mounting rod 2, and then fitted onto the outside of the spherical rod 8. As the connecting rod 9 is advanced, the two locking interfaces 15 on the outer wall of the connecting rod 9 gradually align with the positions of the two arc-shaped protrusions 14. At this point, under the action of the two return springs, the two arc-shaped protrusions 14 spring up and limit the connecting rod 9 through the two locking interfaces 15. At this time, both the spherical rod 8 and the connecting rod 9 are located inside the mounting rod 2. The two limiting plates 6 at this time close the rotating slot opened on the outer wall of the mounting rod 2. At this time, under the compression of the elastic force of the three sets of ring springs 5, the two limiting plates 6 limit the load on the ball rod 8 and the connecting rod 9, thereby preventing the weight of the net bag 11 from causing the ball rod 8 and the connecting rod 9 to rotate, and thus preventing the connecting rod 9 from separating from the ball rod 8. When the UAV body 1 captures the aircraft through the net bag 11, the impact force generated by the collision between the net bag 11 and the aircraft causes the net bag 11 to shift. At this time, the net bag 11 drives the ball rod 8 and the connecting rod 9. The rotation proceeds, and the extrusion block 16 further extrudes the two limiting plates 6, causing them to gradually retract into the cavity 3. At this point, the two limiting plates 6 release their restraint on the spherical rod 8 and connecting rod 9. Under the displacement of the net 11, the spherical rod 8 and connecting rod 9 rotate along the opening below the mounting rod 2. When the spherical rod 8 and connecting rod 9 are perpendicular to the mounting rod 2, under the gravity of the net 11, the end of the connecting rod 9 near the locking interface 15 gradually presses against the arc-shaped protrusion 14, causing the two... The arc-shaped protrusion 14 gradually pushes the two spring pieces 13 back into the two mounting slots 12, further releasing the locking of the ball rod 8 to the connecting rod 9. After the two spring pieces 13 are back into the two mounting slots 12, under the action of the net 11 and the captured aircraft, the two connecting rods 9 and the two ball rods 8 are separated, so that the entire net 11 is separated from the drone body 1, avoiding the change of the flight attitude of the drone body 1 when the net 11 captures the aircraft, thereby avoiding the drone body 1 from crashing due to flight attitude problems during flight.

[0024] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-altitude rotor capture net device, comprising a UAV body (1), characterized in that, The bottom of the drone body (1) is fixedly connected to a mounting rod (2), and a cavity (3) is opened at the end of the mounting rod (2). A fixing block (4) is fixedly connected to the inner side wall of the mounting rod (2), and a ring spring (5) is fixedly connected to the outer side wall of the fixing block (4). A limit plate (6) is fixedly connected to the end of the ring spring (5) away from the fixing block (4). A fixing column (7) is fixedly connected to the inner side wall of the mounting rod (2), and a ball rod (8) is rotatably connected to the inner side wall of the fixing column (7). A connecting rod (9) is sleeved on the outer side wall of the ball rod (8). A hanging rod (10) is provided at the end of the connecting rod (9) away from the ball rod (8). A net bag (11) is detachably connected to the bottom of the hanging rod (10).

2. The low-altitude rotor capture net device according to claim 1, characterized in that: The connecting rod (9) is fixedly connected to an extrusion block (16) on the outer wall of the side near the limiting plate (6), and the cross-section of the extrusion block (16) is triangular.

3. The low-altitude rotor capture net device according to claim 1, characterized in that: The outer side wall of the spherical rod (8) is provided with an installation groove (12), and the inner side wall of the spherical rod (8) is rotatably connected with a spring piece (13). One end of the spring piece (13) is fixedly connected with an arc-shaped protrusion (14), and a return spring is provided on the outer side wall of the end of the spring piece (13) near the arc-shaped protrusion (14).

4. The low-altitude rotor capture net device according to claim 3, characterized in that: The outer side wall of the connecting rod (9) is provided with a snap-fit ​​interface (15), and the connecting rod (9) is snapped into the arc-shaped protrusion (14) through the snap-fit ​​interface (15).

5. The low-altitude rotor capture net device according to claim 1, characterized in that: The outer side wall of the mounting rod (10) is provided with a slot (17), and a locking block (18) is fixedly connected to one end of the net bag (11) near the mounting rod (10). The mounting rod (10) is detachably connected to the net bag (11) through the slot (17) and the locking block (18).

6. The low-altitude rotor capture net device according to claim 5, characterized in that: The end of the net (11) away from the main body of the drone (1) is detachably connected to a counterweight rod (19), and the end of the counterweight rod (19) is fixedly connected to a counterweight block (20).

7. The low-altitude rotor capture net device according to claim 1, characterized in that: An extension rod (21) is fixedly connected to the outer wall of the wing of the main body (1) of the UAV, and an anti-collision net (22) is fixedly connected to the outer wall of the extension rod (21).

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