An airborne interceptor net throwing device and unmanned aerial vehicle

Abstract

An airborne interception net throwing device and a UAV belong to the technical field of UAV interception. The airborne interception net throwing device comprises a shell with an open top end, the shell is used for placing an interception net, a plurality of tracks are fixedly arranged in the shell at intervals in the circumferential direction, a traction block is slidably arranged in the track, and a spring is arranged between the bottom end of the traction block and the track; a limiting seat is fixedly arranged at the bottom end of the shell, a hanging pin is inserted into the limiting seat, a driving mechanism for pulling the hanging pin is fixedly installed on the side wall of the shell; a first traction rope and a second traction rope are fixedly installed on the traction block, the first traction rope is hung on the hanging pin, and the second traction rope is used for being connected with the interception net; after the hanging pin is pulled out of the limiting seat, the first traction rope is separated from the hanging pin, the traction block is ejected outward along the track under the action of the spring, and then the interception net is ejected outward through the second traction rope, without the need of setting a gas storage tank, an electromagnetic system, gunpowder and other structures, the use safety is high, and the power consumption of the UAV is small.

Description

Technical Field

[0001] This utility model relates to the field of drone interception technology, and in particular to an airborne interception net deployment device and a drone. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own programmed control devices. With the increasing prevalence of civilian UAVs, they pose significant challenges to shipping, government security, and even citizen privacy.

[0003] For intercepting drones, an interception net can be used to interfere with the drone's rotor operation, thereby disrupting its flight and forcing it to crash. Currently, there are various methods for deploying the interception net, including high-pressure gas ejection, high-pressure gas ejection generated by the detonation of a small amount of explosives, and electromagnetic ejection. By ejecting and deploying the interception net, it is designed to contact and entangle the drone's rotor, thus restricting the rotor's rotation.

[0004] Interception net launching devices are mostly installed on drones. However, existing propulsion methods such as high-pressure gas catapults, micro-explosive detonation catapults, and electromagnetic catapults have complex overall structures and poor safety. For example, high-pressure gas catapults require an additional high-pressure gas storage tank, which occupies a large space. The explosives in micro-explosive detonation catapults are dangerous materials, and the impact and sound generated by the detonation can damage and interfere with the surrounding environment. Electromagnetic catapults involve complex electromagnetic systems, and the strong magnetic field generated during the electromagnetic catapult process can interfere with the electronic equipment of the drone itself and other electronic equipment in the surrounding area, affecting their normal operation. In addition, electromagnetic catapults require a large amount of electrical energy to be supplied instantaneously. Utility Model Content

[0005] To address the technical problems of existing interceptor net deployment devices for drones, which suffer from complex overall structures and poor safety, this invention provides an airborne interceptor net deployment device and a drone.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides an airborne interceptor net deployment device, including a shell with an open top, inside which the interceptor net is placed. Several tracks are fixedly arranged at intervals along the circumference of the shell, and traction blocks are slidably arranged in the tracks. A spring is provided between the bottom end of the traction block and the track, and the spring is used to eject the traction block. A limiting seat is fixedly provided at the bottom end of the shell, and a hook is inserted into the limiting seat. A drive mechanism for pulling the hook is fixedly installed on the side wall of the shell. A first traction rope and a second traction rope are fixedly installed on the traction block. The first traction rope is hooked to the hook, and the second traction rope is used to connect to the interceptor net. When the hook is pulled out from the limiting seat, the first traction rope separates from the hook, and the traction block is ejected outward along the track under the action of the spring. Then, the second traction rope drives the interceptor net to be ejected outward, so as to realize the deployment of the interceptor net. There is no need to set up gas tanks, electromagnetic systems, gunpowder and other structures. The overall structure is simple, the safety is high, and the power consumption of the UAV is low.

[0008] Preferably, the shell has a variable cross-section structure, which facilitates the inclined arrangement of the interception net and the track, and makes it easier for the subsequent deployment and unfolding of the interception net.

[0009] Preferably, the top of the track is oriented away from the axis of the shell, so that all the traction blocks fly obliquely when they pop out, which facilitates the rapid deployment of the interception net, expands the interception area of ​​the interception net, and makes it easier for the interception net to intercept the target drone.

[0010] Preferably, the limiting seat has a number of limiting grooves spaced apart along its length. The number of limiting grooves is the same as the number of first traction ropes and they correspond one-to-one. The bottom end of the housing has a mounting hole. The first traction rope passes through the mounting hole and extends into the corresponding limiting groove. This can accurately position and constrain the first traction rope, ensuring that each first traction rope is stable in its initial state and avoiding mutual interference. This ensures that the force is balanced when the traction block is ejected, thus ensuring the consistency and accuracy of the interception net throwing action.

[0011] Preferably, the side wall of the limiting seat is provided with a pin hole, which is connected to all the limiting slots. The pin is inserted into the pin hole, so that the pin can simultaneously limit and lock the first traction rope in multiple limiting slots. The operation is simple. Just pull the pin to release the constraint on all the first traction ropes at the same time, which improves the efficiency and reliability of the device in triggering the throwing of the interception net.

[0012] Preferably, the number of mounting holes and limiting slots are the same and correspond one-to-one, ensuring that the first traction rope can accurately pass through the mounting hole and enter the corresponding limiting slot, making the installation and positioning of the traction rope more precise, which helps to maintain the stability of the device structure and the standardization of the throwing action, and avoids device failure due to misalignment of the traction rope installation.

[0013] Preferably, the track is a cylindrical structure with an open top. The side wall of the track has a slot along its axial direction. The first traction rope and the second traction rope both extend out of the slot from the track. The cylindrical track structure is simple and easy to process, and can provide a stable sliding guide for the traction block. The slot facilitates the extension of the traction rope, and at the same time, it plays a certain role in limiting and protecting the traction rope, preventing the traction rope from getting tangled in the track, and ensuring that the traction rope can normally transmit the tension to drive the interception net to be thrown.

[0014] Preferably, the pin has an L-shaped structure, which includes a horizontal section and a vertical section that are fixedly connected. This allows for better connection with the first traction rope in the limiting groove and with the drive mechanism, making the pin's pulling operation more stable and reliable.

[0015] Preferably, the drive mechanism includes a servo motor, and a drive arm is fixedly connected to the output shaft of the servo motor. The drive arm is rotatably connected to the vertical section of the hook pin, so that the power transmission is smooth and the hook pin can be effectively guaranteed to move along a predetermined trajectory, thereby accurately triggering the release action of the interception net.

[0016] This utility model provides a drone that uses the above-mentioned airborne interception net deployment device.

[0017] As can be seen from the above technical solutions, the advantages of this utility model are:

[0018] 1. A first traction rope and a second traction rope are fixedly installed on the traction block. The first traction rope is connected to the hook, and the second traction rope is used to connect to the interception net. When the hook is pulled out from the limit seat, the first traction rope separates from the hook, and the traction block pops out along the track under the action of the spring. Then, the second traction rope drives the interception net to pop out, so as to realize the deployment of the interception net. There is no need to set up gas tanks, electromagnetic systems, gunpowder and other structures. The overall structure is simple, the safety is high, and the power consumption of the drone is low.

[0019] 2. The top of the track is set away from the axis of the shell, so that all the traction blocks fly at an angle when they pop out, which facilitates the rapid deployment of the interception net, expands the interception area of ​​the interception net, and makes it easier for the interception net to intercept the target UAV. Attached Figure Description

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

[0021] Figure 1 This is a schematic diagram of the external structure of the housing according to one or more embodiments of the present invention;

[0022] Figure 2 This is a bottom view of the housing according to one or more embodiments of the present invention.

[0023] Figure 3 This is a front view structural diagram of the housing according to one or more embodiments of the present invention;

[0024] Figure 4 This is a side view of the housing according to one or more embodiments of the present invention.

[0025] Figure 5 This is a schematic diagram of the internal structure of the housing according to one or more embodiments of the present invention;

[0026] Figure 6 This is a schematic diagram of the track structure according to one or more embodiments of the present invention;

[0027] Figure 7 This is a schematic diagram of the traction block according to one or more embodiments of the present invention;

[0028] Figure 8 This is a schematic diagram of the drive mechanism according to one or more embodiments of the present invention;

[0029] Figure 9 This is a schematic diagram of the structure of the hanging pin according to one or more embodiments of the present invention;

[0030] Figure 10 This is a side view of the airborne interceptor net deployment device according to one or more embodiments of the present invention.

[0031] Figure 11 This is a front view structural schematic diagram of the airborne interceptor net deployment device according to one or more embodiments of the present invention;

[0032] Figure 12 This is a schematic diagram of the storage state structure of the traction block according to one or more embodiments of the present invention;

[0033] The components represented by the various reference numerals in the diagram are:

[0034] 1. Housing; 2. Track; 3. Limiting seat; 4. Mounting seat; 5. Limiting groove; 6. Pin hole; 7. Groove; 8. Mounting hole; 9. Traction block; 10. First traction rope; 11. Second traction rope; 12. Fastening hole; 13. Drive mechanism; 14. Servo motor; 15. Drive arm; 16. Hanging pin; 17. Horizontal section; 18. Vertical section; 19. Spring. Detailed Implementation

[0035] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0036] Example 1

[0037] In a typical embodiment of this utility model, such as Figure 1 As shown, an airborne interceptor net deployment device is proposed, comprising: a housing 1, a track 2, a limiting seat 3, a traction block 9, a drive mechanism 13, a hook 16, and a spring 19. The housing 1 is a variable cross-section structure with an open top, and the top cross-section of the housing 1 is larger than the bottom cross-section. Several tracks 2 are provided, and the tracks 2 are fixedly installed inside the housing 1 by welding. The tracks 2 are spaced apart along the circumference of the housing 1. A traction block 9 is slidably installed inside each track 2. A spring 19 is also provided between the bottom end of the traction block 9 and the track 2. When the traction block 9 is installed into the track 2, the traction block 9 can be used to compress the spring 19. The limiting seat 3 is welded and fixedly installed at the center of the bottom end of the housing 1. The drive mechanism 13 is fixedly installed on the side wall of the housing 1. The hook 16 is horizontally inserted into the limiting seat 3, and the hook 16 is also rotatably connected to the drive mechanism 13, so that the drive mechanism 13 can be used to pull the hook 16 out of the limiting seat 3.

[0038] like Figure 7 As shown, a first traction rope 10 and a second traction rope 11 are fixedly installed on the traction block 9. The first traction rope 10 is used to connect with the hook 16 to limit the position of the traction block 9 in the track 2. The second traction rope 11 is used to connect with the interception net. Thus, when the hook 16 is pulled out from the limit seat 3, the first traction rope 10 separates from the hook 16, and the traction block 9 pops out along the track 2 under the action of the spring 19. Then, the second traction rope 11 drives the interception net to pop out, so as to realize the deployment of the interception net. There is no need to set up gas tanks, electromagnetic systems, gunpowder and other structures. The overall structure is simple, the safety is high, and the power consumption of the UAV is low.

[0039] In this embodiment, the track 2 is inclined. Specifically, the top of all the tracks 2 is set in a direction away from the axis of the housing 1, so that when all the traction blocks 9 are ejected outward, they fly obliquely, that is, all the traction blocks 9 fly in a direction away from each other, which facilitates the rapid deployment of the interception net, expands the interception area of ​​the interception net, and facilitates the interception of the target UAV by the interception net.

[0040] like Figure 2and Figure 3 As shown, the cross-sectional dimension of the bottom end of the housing 1 is smaller than that of the top end of the housing 1. The limiting seat 3 is fixedly installed at the bottom end of the housing 1. The limiting seat 3 has a rectangular structure and several limiting grooves 5 are spaced apart along its length for the installation of the first traction rope 10. The number of limiting grooves 5 is the same as the number of the first traction ropes 10 and they correspond one-to-one, which facilitates the partitioned installation of the first traction ropes 10 and avoids the difficulty of operation when multiple springs 19 are compressed and fixed at the same time. The bottom end of the housing 1 has corresponding mounting holes 8. The number of mounting holes 8 is the same as the number of limiting grooves 5 and they correspond one-to-one. The first traction rope 10 can pass through the mounting holes 8 and extend into the corresponding limiting groove 5.

[0041] It should be noted that the end of the spring 19 furthest from the traction block 9 is fixedly connected to the bottom inner wall of the track 2 by welding or other means to limit the position of the spring 19 and prevent the spring 19 from popping out of the track 2 after the traction block 9 is launched.

[0042] like Figure 4 and Figure 5 As shown, a pin hole 6 is provided on the side wall of the limiting seat 3. The pin hole 6 passes through the limiting seat 3 laterally and communicates with all the limiting grooves 5. The hanging pin 16 is inserted into the pin hole 6 and passes through all the limiting grooves 5 laterally in sequence, so as to facilitate connection with all the first traction ropes 10, so as to limit the position of the traction block 9 in the corresponding track 2 through the first traction ropes 10.

[0043] like Figure 6 The track 2 is a cylindrical structure with an opening at the top and a slot 7 along its axial direction on the side wall. The track 2 is installed obliquely inside the housing 1 by welding. The traction block 9 and the spring 19 are both installed inside the track 2. The slot 7 is used for the extension of the first traction rope 10 and the second traction rope 11.

[0044] In this embodiment, the slot 7 is opened on the side of the track 2 near the axis of the housing 1. The area enclosed by all the tracks 2 is used for the placement of the interception net. The first traction rope 10 extends outward from the slot 7 and passes through the mounting hole 8 to connect with the hanging pin 16. The second traction rope 11 extends outward from the slot 7 and is fixedly connected to the interception net.

[0045] like Figure 7As shown, the traction block 9 has a cylindrical structure, and the outer diameter of the traction block 9 is the same as the inner diameter of the track 2. The traction block 9 is slidably disposed in the track 2. A fastening hole 12 is provided on the side wall of the traction block 9. The fastening hole 12 has internal threads for bolt installation. The axis of the fastening hole 12 is perpendicular to the axis of the traction block 9. One end of the first traction rope 10 and the second traction rope 11 are both located inside the traction block 9 and connected to the bolts to restrict the position of the first traction rope 10 and the second traction rope 11. The first traction rope 10 is a thin steel wire rope or other high-strength thin rope, and the second traction rope 11 is a thin rope made of materials such as nylon and Kevlar.

[0046] In this embodiment, the end of the first traction rope 10 is wrapped around the hanging pin 16, and the other end of the first traction rope 10 is tightened and limited within the traction block 9 by a bolt. In other embodiments, connecting rings can also be fixedly provided at the ends of the first traction rope 10 and the second traction rope 11, so that they can be sleeved on the corresponding hanging pin 16 and bolt. The specific setting method can be selected according to actual needs, and no further restrictions are imposed here.

[0047] It is understood that in other embodiments, the first traction rope 10 and the second traction rope 11 may also be directly fixedly connected to the traction block 9 as a whole.

[0048] like Figure 4 As shown, a mounting base 4 is welded and fixed to the side wall of the housing 1, and a drive mechanism 13 is fixedly mounted on the mounting base 4 so as to realize the automatic pull-out of the hanging pin 16 through the drive mechanism 13, specifically as follows. Figure 8 As shown, the drive mechanism 13 includes a servo motor 14 and a drive arm 15. The servo motor 14 is fixedly mounted on the mounting base 4, and the drive arm 15 is horizontally arranged. One end of the drive arm 15 is fixedly connected to the output shaft of the servo motor 14, and the other end of the drive arm 15 is rotatably connected to the hook pin 16. The servo motor 14 can drive the drive arm 15 to rotate around the axis to change the position of the drive arm 15, and then use the drive arm 15 to pull the hook pin 16 out of the limit seat 3.

[0049] It is understood that in other embodiments, provided that the size, torque and weight meet the usage requirements, other power output devices such as stepper motors can be used instead of servo motor 14. No further restrictions will be imposed here.

[0050] Pin 16 has an L-shaped structure, such as Figure 9 As shown, the hanging pin 16 includes a horizontal section 17 and a vertical section 18. The vertical section 18 is fixedly installed at one end of the horizontal section 17, as shown. Figure 10 and Figure 11As shown, the horizontal section 17 is used to be inserted into the pin hole 6 to achieve connection with the first traction rope 10, and the vertical section 18 is used to be inserted into the drive arm 15. The vertical section 18 is rotatably connected to the drive arm 15, so that the drive arm 15 can drive the hanging pin 16 to be pulled out from the pin hole 6.

[0051] The specific working principle is as follows:

[0052] like Figure 12 As shown, a traction block 9 is placed in each track 2, so that the first traction rope 10 and the second traction rope 11 extend outward from the slot 7 on their respective track 2. Using an auxiliary tool (such as a pressing rod), the traction block 9 is pressed into the track 2 to compress the spring 19. After the traction block 9 moves into place, the first traction rope 10 is introduced into the corresponding limiting slot 5 and hooked with the horizontal section 17 of the hook 16 to limit the position of the traction block 9. After the installation of one traction block 9 is completed, all the remaining traction blocks 9 are installed in sequence.

[0053] The vertical section 18 of the hook 16 is rotatably connected to the drive arm 15. Then the interception net is folded and placed inside the housing 1 so that the interception net is located in the area enclosed by all the tracks 2. The four sides of the interception net are fixedly connected to the adjacent second traction rope 11, and the servo motor 14 is connected to the control interface on the UAV.

[0054] When the interception net needs to be released, the control terminal sends an action signal to the servo motor 14 to control the drive arm 15 to rotate around the axis to pull out the pin 16. The first traction rope 10 is disengaged from the pin 16. Under the action of the spring 19, all the traction blocks 9 pop outward. The second traction rope 11 on the traction block 9 pulls the interception net out of the shell 1 and flies out along the release direction to complete the interception of the UAV.

[0055] The energy for launch is stored in spring 19, and spring 19 is released by servo motor 14 using a pin release method. The action command of servo motor 14 comes from the flight platform such as the UAV carrying this module. The intercept net release process does not require additional high-pressure gas, explosives or electromagnetic launch devices. The overall structure is simple and the safety of use is high.

[0056] Example 2

[0057] In another typical embodiment of this utility model, a drone is proposed. The drone is equipped with the airborne interceptor net deployment device mentioned in Embodiment 1. The control interface on the drone is connected to the drive mechanism 13, and can send action commands to the drive mechanism 13 through the control terminal to control the release of the interceptor net.

[0058] Understandably, the airborne interceptor net deployment device can be connected to the drone via a mounting bracket.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An airborne interceptor net deployment device, comprising: The shell (1) with an open top is used to place the interception net inside the shell (1). The shell (1) is characterized in that a number of tracks (2) are fixedly arranged at intervals along its circumference inside the shell (1). A traction block (9) is slidably arranged inside the track (2). A spring (19) is provided between the bottom end of the traction block (9) and the track (2). The spring (19) is used to pop out the traction block (9). A limiting seat (3) is fixedly arranged at the bottom end of the shell (1). A hanging pin (16) is inserted on the limiting seat (3). A drive mechanism (13) for pulling out the hanging pin (16) is fixedly installed on the side wall of the shell (1). A first traction rope (10) and a second traction rope (11) are fixedly installed on the traction block (9). The first traction rope (10) is hooked to the hook (16), and the second traction rope (11) is used to connect to the interception net.

2. The airborne interception net deployment device according to claim 1, characterized in that, The shell (1) is a variable cross-section structure.

3. The airborne interception net deployment device according to claim 1, characterized in that, The top of the track (2) is set in a direction away from the axis of the housing (1).

4. The airborne interception net deployment device according to claim 1, characterized in that, The limiting seat (3) is provided with several limiting grooves (5) spaced apart along its length direction. The number of limiting grooves (5) is the same as that of the first traction rope (10) and they correspond one to one. The bottom end of the housing (1) is provided with an installation hole (8). The first traction rope (10) passes through the installation hole (8) and extends into the corresponding limiting groove (5).

5. The airborne interceptor net deployment device according to claim 4, characterized in that, The side wall of the limiting seat (3) is provided with a pin hole (6), which is connected to all the limiting grooves (5), and the hanging pin (16) is inserted into the pin hole (6).

6. The airborne interception net deployment device according to claim 4, characterized in that, The number of mounting holes (8) and the number of limiting grooves (5) are the same and correspond one-to-one.

7. The airborne interception net deployment device according to claim 1, characterized in that, The track (2) is a cylindrical structure with an open top. A slot (7) is provided on the side wall of the track (2) along its axial direction. The first traction rope (10) and the second traction rope (11) both extend out of the slot (7) from the track (2).

8. The airborne interception net deployment device according to claim 1, characterized in that, The hanging pin (16) has an L-shaped structure and includes a horizontal section (17) and a vertical section (18) for fixed connection.

9. The airborne interception net deployment device according to claim 8, characterized in that, The drive mechanism (13) includes a servo motor (14), and a drive arm (15) is fixedly connected to the output shaft of the servo motor (14). The drive arm (15) is rotatably connected to the vertical section (18) of the hook pin (16).

10. A drone, characterized in that, The airborne intercept net deployment device as described in any one of claims 1-9 is employed.

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