A low, slow, small unmanned aircraft net capture countermeasure mechanism

Abstract

The utility model relates to the technical field of unmanned plane net catching countermeasure, concretely relates to a low -slow -small unmanned plane net catching countermeasure mechanism for, include: mounting seat, four rectangular distribution's fixed foot are fixedly connected to mounting seat bottom, net catching subassembly, including the first drive motor of mounting seat bottom, the output shaft fixed connection of first drive motor has the turntable, the top fixed connection of turntable has four annular equal interval distribution's U -shaped seat, the inside rotatable launch seat of U -shaped seat is provided, the utility model discloses a protection assembly is set up, when unmanned plane net catching interception structure is not used, two symmetrical distribution's protective cover can protect net catching structure, avoid the damage under the sun of blowing in the wind, when needing to intercept unmanned plane, two protective cover synchronous opening, the net catching countermeasure structure exposes, through net catching subassembly low -slow -small unmanned plane net catching countermeasure, has guaranteed the success rate of unmanned plane net catching countermeasure.

Description

Technical Field

[0001] This utility model relates to the field of anti-drone netting technology, specifically to an anti-drone netting mechanism for low-speed, small drones. Background Technology

[0002] With the rapid development and widespread adoption of drone technology, small multi-rotor drones and other "low, slow, and small" aircraft have been widely used in aerial photography, logistics, and agricultural plant protection. However, their improper or malicious use also poses a serious threat to critical infrastructure, important event venues, confidential areas, and public safety. These targets are characterized by low flight altitude, slow speed, and small radar cross-section, making them difficult to detect and intercept effectively by traditional air defense systems.

[0003] Net-based interception, as a physical capture method, is considered a promising countermeasure due to its advantages such as not causing explosions, minimal collateral damage, and the ability to capture evidence. When using net-based interception, high-pressure gas is used to launch the interception net from the launch chamber. The interception net opens in the air to intercept and counter low-speed small drones flying in the air.

[0004] Traditional drone net-based countermeasure structures are prone to damage due to long-term outdoor exposure, resulting in untimely and inaccurate launches of the interceptor net, which reduces the success rate of countermeasures. At the same time, their commonly used single-tube design requires reloading after a miss, making continuous interception impossible and further affecting the efficiency of countermeasures. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a net-catching and countermeasure mechanism for low-speed and small unmanned aerial vehicles, which can effectively solve the problems mentioned in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a countermeasure mechanism for net capture of low-speed, small unmanned aerial vehicles (UAVs), comprising: The mounting base has four rectangularly distributed fixing feet fixedly connected to its bottom; The net-catching assembly includes a first drive motor installed at the bottom of the mounting base. The output shaft of the first drive motor is fixedly connected to a turntable. Four U-shaped seats are fixedly connected to the top of the turntable in a ring-shaped arrangement. A rotatable launcher is provided inside the U-shaped seats. A net-catching launcher is installed on the launcher. A radar camera is provided above the mounting base. The protective assembly includes two symmetrically arranged mounting slots on the outside of the mounting base. The inner walls of the mounting slots are rotatably connected to a rotating shaft via a bearing. A protective cover is fixedly connected to the outside of each of the two rotating shafts, and an inclined plate is fixedly connected to the outside of each of the two protective covers.

[0007] Preferably, a gas tank is fixedly connected to the top of the turntable, and a high-pressure gas pipe is provided at the outlet of the gas tank. The end of the high-pressure gas pipe away from the gas tank is connected to the air inlet of the launcher.

[0008] Preferably, the radar camera is mounted on top of the gas tank.

[0009] Preferably, a second drive motor is mounted on the outside of the U-shaped base, and the launch base is fixedly connected to the output shaft of the second drive motor.

[0010] Preferably, the bottom of the mounting base is fixedly connected to two symmetrically distributed bearing seats, the inner walls of the two bearing seats are rotatably connected to the same worm gear, both ends of the rotating shaft pass through the mounting groove and extend to the outside of the mounting base, and a worm wheel is fixedly connected to the outside of the rotating shaft.

[0011] Preferably, the two worm gears mesh with the same worm, and the two worm gears rotate in opposite directions.

[0012] Preferably, a servo motor is mounted on the bottom of the mounting base, the output shaft of the servo motor is fixedly connected to a drive gear, and a driven gear is fixedly connected to the outside of the worm gear, with the drive gear and the driven gear meshing.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art: 1. By setting up protective components, when the drone net-catching and interception structure is not in use, two symmetrically distributed protective covers can protect the net-catching structure and prevent damage from wind and sun. When it is necessary to intercept the drone, the two protective covers open simultaneously, exposing the net-catching and countermeasure structure. The net-catching components can then be used to catch and counter low, slow, and small drones, ensuring a high success rate in catching and counteracting drones.

[0014] 2. By setting up a net-catching component, the radar camera can locate the position of low-speed and small drones. The position of the net-catching launch tube is adjusted by the first drive motor and the second drive motor to catch and counter the low-speed and small drones. When it fails to hit, it can quickly switch to the next net-catching launch tube without reloading, and can continuously intercept, further improving the countermeasure effect against low-speed and small drones. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the protective cover of this utility model in the open state; Figure 3 This is a schematic diagram of the structure of the protective cover of this utility model; Figure 4 This is a schematic diagram of the turntable structure of this utility model; Figure 5 for Figure 3 Enlarged structural diagram at point A in the middle.

[0017] The labels in the diagram represent: 1. Mounting base; 2. Fixing foot; 3. Protective components; 301. Protective cover; 302. Inclined plate; 303. Bearing housing; 304. Worm gear; 305. Worm wheel; 306. Rotating shaft; 307. Mounting slot; 308. Drive gear; 309. Driven gear; 310. Servo motor; 4. Net trapping assembly; 401. First drive motor; 402. Second drive motor; 403. U-shaped base; 404. Turntable; 405. Gas tank; 406. Radar camera; 407. High-pressure air pipe; 408. Net trapping launch tube; 409. Launching base. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Example 1: Reference Figure 1-2 and Figure 4 This is the first embodiment of the present invention, which discloses a countermeasure mechanism for net capture of low-speed, small unmanned aerial vehicles (UAVs), comprising: Mounting base 1 has four rectangularly distributed fixing feet 2 fixedly connected to its bottom. The fixing feet 2 are firmly installed on the ground or the top of the building by expansion bolts or anchor bolts to ensure the stability of the overall structure when launching the interception net. The net-catching assembly 4 includes a first drive motor 401 installed at the bottom of the mounting base 1. The output shaft of the first drive motor 401 is fixedly connected to a turntable 404. Four U-shaped seats 403 are fixedly connected to the top of the turntable 404 in a ring-shaped arrangement. A rotatable launcher 409 is installed inside the U-shaped seat 403. A solenoid valve is installed inside the launcher 409 to control high-pressure gas to enter the net-catching launch tube 408 through the high-pressure gas pipe 407. The net-catching launch tube 408 is installed on the launcher 409. The net-catching launch tube 408 is pre-loaded with a folding interception net and a propellant charge. The edge of the interception net is equipped with a counterweight and a net-opening spring to ensure that it can be quickly deployed and cover a large airspace after launch. A radar camera 406 is installed above the mounting base 1.

[0021] Specifically, an air tank 405 is fixedly connected to the top of the turntable 404. A high-pressure air pipe 407 is provided at the air outlet of the air tank 405. The end of the high-pressure air pipe 407 away from the air tank 405 is connected to the air inlet of the launcher 409. A radar camera 406 is installed on the top of the air tank 405. The radar camera 406 can rotate 360° to monitor and track the flight trajectory of the low-speed small UAV in real time. The radar camera 406 is set in the center position, which can provide accurate positioning for the launch of the four net capture launch tubes 408.

[0022] Specifically, a second drive motor 402 is installed on the outside of the U-shaped base 403, and the launch base 409 is fixedly connected to the output shaft of the second drive motor 402. The second drive motor 402 can drive the launch base 409 to adjust its angle from -10° to 90° in the vertical plane, so as to achieve precise aiming at UAVs at different altitudes.

[0023] Both the first drive motor 401 and the second drive motor 402 are electrically connected to the control system. The control system automatically calculates the launch elevation angle and azimuth angle based on the target position information obtained by the radar camera 406, and controls the motors to make coordinated adjustments.

[0024] Example 2: Reference Figure 1-5 This is the second embodiment of the present invention, which differs from the first embodiment in that: The protective component 3 includes two symmetrically arranged mounting slots 307 on the outside of the mounting base 1. The inner wall of the mounting slot 307 is rotatably connected to a rotating shaft 306 via a bearing. A protective cover 301 is fixedly connected to the outside of each of the two rotating shafts 306. The protective cover 301 is made of lightweight aluminum alloy and has an anti-corrosion coating on its inner and outer surfaces.

[0025] Both protective covers 301 are fixedly connected to inclined plates 302 on their outer sides to guide rainwater at the connection point of the two protective covers 301 and facilitate its rapid discharge. The outer side of the protective cover 301 is provided with a guide groove to guide rainwater to both sides for discharge and avoid water accumulation.

[0026] Specifically, the bottom of the mounting base 1 is fixedly connected to two symmetrically distributed bearing seats 303. The inner walls of the two bearing seats 303 are rotatably connected to the same worm gear 304. Both ends of the rotating shaft 306 pass through the mounting groove 307 and extend to the outside of the mounting base 1. The outer side of the rotating shaft 306 is fixedly connected to a worm wheel 305. The two worm wheels 305 mesh with the same worm gear 304, and the two worm wheels 305 rotate in opposite directions, so as to realize the synchronous reverse opening and closing of the protective cover 301.

[0027] The two worm gears 305 have the same helix angle but are arranged centrally symmetrically with respect to the centerline of the worm 304. This arrangement ensures that when the worm 304 rotates in one direction, the axial forces acting on the two worm gears 305 are in opposite directions, thus driving the two worm gears 305 to rotate in opposite directions. For example, when the worm 304 rotates clockwise, the left worm gear 305 is driven to rotate counterclockwise, while the right worm gear 305 is driven to rotate clockwise. Ultimately, this drives the two protective covers 301 to close inward and open outward through the rotating shaft 306, achieving perfect synchronous reverse motion.

[0028] Specifically, a servo motor 310 is installed at the bottom of the mounting base 1. The output shaft of the servo motor 310 is fixedly connected to a drive gear 308, and a driven gear 309 is fixedly connected to the outside of the worm gear 304. The drive gear 308 and the driven gear 309 mesh with each other. The servo motor 310 receives the opening and closing command from the control system and drives the protective cover 301 to complete the opening or closing action within 3-5 seconds.

[0029] The remaining structure is the same as that in Example 1.

[0030] The workflow of this utility model is as follows: When it is necessary to intercept low-speed small drones, the servo motor 310 is activated. The servo motor 310 drives the active gear 308 to rotate through the output shaft. The rotation of the active gear 308 drives the worm 304 to rotate through the driven gear 309. Under the action of the two counter-rotating worm wheels 305, the rotation of the worm 304 drives the two rotating shafts 306 to rotate in opposite directions, smoothly opening the two protective covers 301 within 4 seconds, completely exposing the net capture and launch structure. The radar camera 406 captures the position of a low-speed, small drone in the air. Based on the position of the drone, the first drive motor 401 and the second drive motor 402 adjust the direction and angle of the net-capturing launch tube 408. After aiming, the control system triggers the solenoid valve, and the high-pressure gas in the gas tank 405 is instantly injected into the launch base 409 through the high-pressure gas pipe 407, which pushes the interception net in the net-capturing launch tube 408 to be launched at a speed of 25m / s. The interception net unfolds in the air and entangles and captures the drone in the air. When the first intercept net misses the target, the control system starts the first drive motor 401 within 1 second, which drives the turntable 404 to rotate 90° to switch to the next pre-loaded net capture launcher 408. At the same time, the system recalculates the firing data based on the latest position of the UAV and completes the second launch within 3 seconds, thus achieving continuous interception of the UAV. After use, the used net capture launch tube 408 is refilled with interception net and propulsion gas. Then, the servo motor 310 is driven to rotate in the opposite direction, so that the protective cover 301 is reset. The two protective covers 301 merge to form a sealed protective space, which effectively prevents rainwater, dust and ultraviolet rays from corroding the precision launch mechanism, and achieves the purpose of long-term protection of the UAV net capture countermeasure structure.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A countermeasure mechanism for net capture of low-speed, small unmanned aerial vehicles (UAVs), characterized in that, include: Mounting base (1), the bottom of which is fixedly connected to four fixed feet (2) arranged in a rectangular shape; The net-catching assembly (4) includes a first drive motor (401) installed at the bottom of the mounting base (1). The output shaft of the first drive motor (401) is fixedly connected to a turntable (404). The top of the turntable (404) is fixedly connected to four U-shaped seats (403) evenly distributed in a ring. A rotatable launcher (409) is provided inside the U-shaped seat (403). A net-catching launcher (408) is installed on the launcher (409). A radar camera (406) is provided above the mounting base (1). The protective component (3) includes two symmetrically arranged mounting slots (307) on the outside of the mounting base (1). The inner wall of the mounting slot (307) is rotatably connected to a rotating shaft (306) via a bearing. A protective cover (301) is fixedly connected to the outside of each of the two rotating shafts (306), and a sloping surface (302) is fixedly connected to the outside of each of the two protective covers (301).

2. The countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, A gas tank (405) is fixedly connected to the top of the turntable (404). A high-pressure gas pipe (407) is provided at the outlet of the gas tank (405). The end of the high-pressure gas pipe (407) away from the gas tank (405) is connected to the air inlet of the launcher (409).

3. The countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, The radar camera (406) is mounted on top of the gas tank (405).

4. A countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, A second drive motor (402) is installed on the outside of the U-shaped base (403), and the launch base (409) is fixedly connected to the output shaft of the second drive motor (402).

5. A countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, The bottom of the mounting base (1) is fixedly connected to two symmetrically distributed bearing seats (303). The inner walls of the two bearing seats (303) are rotatably connected to the same worm gear (304). Both ends of the rotating shaft (306) pass through the mounting groove (307) and extend to the outside of the mounting base (1). The outer side of the rotating shaft (306) is fixedly connected to a worm wheel (305).

6. A countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 5, characterized in that, The two worm gears (305) mesh with the same worm (304), and the two worm gears (305) rotate in opposite directions.

7. A countermeasure mechanism for low-speed, small unmanned aerial vehicles (UAVs) according to claim 5, characterized in that, The mounting base (1) is equipped with a servo motor (310) at its bottom. The output shaft of the servo motor (310) is fixedly connected to a drive gear (308). The outer side of the worm gear (304) is fixedly connected to a driven gear (309), and the drive gear (308) meshes with the driven gear (309).

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