A drone reconnaissance countermeasure

Abstract

The application discloses an unmanned aerial vehicle reconnaissance countermeasure device and belongs to the technical field of unmanned aerial vehicle countermeasure devices. A signal emission device comprises a fixing plate, an adjusting mechanism and a driving mechanism. The fixing plate is fixed on a U-shaped base. Three directional countermeasure antennas are arranged on the adjusting mechanism. The adjusting mechanism is arranged on the fixing plate. The driving mechanism is arranged on the adjusting mechanism. An elastic mechanism is arranged in the driving mechanism. An arc-shaped plate is arranged on a platform. One end surface of the arc-shaped plate is an inclined surface. The application can keep the directional countermeasure antennas to emit interference signals with normal intensity when the directional countermeasure antennas are in a horizontal or oblique downward area, thereby reducing the harm or signal interference to people, livestock or base stations. When the directional countermeasure antennas are in an oblique upward or vertical upward area, the application can interfere with the signals of the unmanned aerial vehicles in the airspace which are interfered by signals with normal intensity and fly higher. The enhanced interference signals will not directly contact people, livestock or base stations when the signals are emitted to the oblique upward or vertical upward area, and the harm and interference to people, livestock or base stations can be greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of drone countermeasure equipment technology, specifically a drone reconnaissance and countermeasure device. Background Technology

[0002] A drone reconnaissance and countermeasure device is a device used to prevent and interfere with drones in no-fly zones. It mainly uses directional countermeasure antennas on the device to emit jamming signal waves to drones entering its range, causing the drones to land or return. With the continuous improvement of technology, existing drone reconnaissance and countermeasure devices can achieve multi-directional jamming signal transmission. The device rotates 360 degrees horizontally by rotating a gimbal. A base is installed vertically on the gimbal, and multiple directional countermeasure antennas (to enhance signal transmission strength) are installed on the base. A motor is set at one end of the base, which drives the base to rotate 90 degrees vertically from horizontal to vertical, thereby realizing multi-directional signal transmission of the directional countermeasure antennas.

[0003] For arrays of multiple directional countermeasure antennas, there are generally two types: side-by-side arrays and triangular arrays. The phase control between the antennas in a side-by-side array is relatively simple, and it is easy to achieve in-phase or specific phase difference excitation. However, the mutual coupling effect between directional countermeasure antennas is relatively large, which will affect the input impedance and radiation efficiency of the directional countermeasure antenna. The triangular array of directional countermeasure antennas can reduce the influence of mutual coupling effect. Therefore, signal transmission of a triangular array composed of three directional countermeasure antennas is widely used.

[0004] While existing directional countermeasure antennas can monitor from multiple directions, they cannot adjust the signal transmission strength in a specific direction (the signal transmission strength of a single directional countermeasure antenna is fixed and cannot be adjusted). Within a horizontal range, such as a no-fly zone within a 3-kilometer radius, drones are not affected by the directional countermeasure antenna as long as they are more than 3 kilometers away. However, when a drone is directly above or diagonally above the countermeasure antenna at a certain angle, the signal radiation range of the directional countermeasure antenna is equivalent to the upper half of a sphere due to the high altitude. Beyond the distance directly above or diagonally above the upper half of the sphere, the signal transmitted by the directional countermeasure antenna cannot be interfered with. Under specified conditions, drones are also prohibited from flying within the designated area. Therefore, when a drone reaches a certain angle directly above or diagonally above the no-fly zone, it is necessary to transmit jamming signals to force it to return or land. Since the directional jamming antenna of the countermeasures device is located in a horizontal position or below diagonally above, the signal strength of the directional jamming antenna cannot be too strong (long-term strong signal transmission will affect people, animals, base stations, etc. in the area). Therefore, the inability of existing multi-array directional jamming antennas to change the transmission signal strength in a specific direction has become a problem for existing countermeasures devices, resulting in the inability to interfere with drones when they exceed a certain height directly above or diagonally above the area. Summary of the Invention

[0005] To address the technical problems mentioned in the background section, this invention provides a drone reconnaissance and countermeasure device, employing the following technical solution:

[0006] The system includes a pan-tilt unit (PTZ), on which a first geared motor is mounted. A bearing seat is mounted on the output shaft of the first geared motor, and a platform is mounted on the bearing seat. Bearing brackets are mounted on both sides of the platform, and first bearings are mounted on the bearing brackets. A rotating shaft is housed within the first bearing, and the rotating shaft has a hollow interior. A U-shaped base is mounted on the rotating shaft. A second geared motor is mounted on one of the bearing brackets, and its output shaft is located inside and fixedly connected to the rotating shaft. A camera is mounted on the U-shaped base. A mounting bracket is mounted on one of the bearing brackets, and a third geared motor is mounted on the mounting bracket. A detector is mounted on the third geared motor, and a signal sensor is located at the bottom of the U-shaped base. The signal transmitting device is equipped with three directional countermeasure antennas arranged in a triangular array. The device includes a fixed plate, an adjustment mechanism, and a drive mechanism. The fixed plate is fixed to a U-shaped base. The adjustment mechanism houses the three directional countermeasure antennas. The fixed plate contains the adjustment mechanism, which in turn contains the drive mechanism. The drive mechanism contains an elastic mechanism. An arc-shaped plate is mounted on the platform, with one end face of the arc-shaped plate being inclined. When the elastic mechanism touches the arc-shaped plate, it drives the drive mechanism, which in turn drives the adjustment mechanism. The adjustment mechanism then adjusts the three directional countermeasure antennas, changing the outer triangular array to an inner triangular array.

[0007] Furthermore, the adjustment mechanism includes a circular plate, a fixed plate on the circular plate, a circular seat on the circular plate, a set of second bearings arranged in a triangular array on the circular seat, a first rotating rod on the second bearing, a first gear on the first rotating rod, a V-shaped plate on the first gear, a fixing strip on the V-shaped plate, a directional counter-attack antenna on the fixing strip, a third bearing on the circular seat located between the second bearings, a second rotating rod on the third bearing, a second gear on the second rotating rod, and the second gear meshing with each of the first gears. An adjustment mechanism is provided on the other side of the circular plate.

[0008] Furthermore, the drive mechanism includes a cylinder fixed to a circular plate, a fourth bearing on the inner wall of the cylinder, a third rotating rod on the fourth bearing, a vertical bevel gear and a third gear on the third rotating rod, a second rotating rod passing through the circular seat and the circular plate and having a horizontal bevel gear at its end, the horizontal bevel gear meshing with the vertical bevel gear, and an elastic mechanism inside the cylinder, one end of the elastic mechanism meshing with the third gear, and the other end of the elastic mechanism passing through the cylinder.

[0009] Furthermore, the elastic mechanism includes a sleeve fixed to the bottom of the cylinder, a lever inside the sleeve, one end of the lever passing through the cylinder and the other end passing through the sleeve, a piston plate connected to the lever inside the sleeve, a spring inside the sleeve, the spring being sleeved on the lever, one end of the spring being connected to the piston plate and the other end being connected to the sleeve, an L-shaped connecting plate being provided at one end of the lever, a rack being provided on the L-shaped connecting plate, and the rack meshing with a third gear.

[0010] Furthermore, the end face of the lever that penetrates the cylinder is semi-circular.

[0011] Furthermore, the platform is equipped with reinforcing ribs, which are connected to the bearing bracket.

[0012] This invention has the following advantages: When the reconnaissance countermeasure device of this invention detects a drone diagonally above or directly above the reconnaissance countermeasure device, the second reduction motor drives the U-shaped base to rotate from a horizontal position to a vertical angle. Since the entire signal transmitting device is parallel to the bottom of the U-shaped base, the signal transmitting device and the directional countermeasure antenna also rotate. When the elastic mechanism contacts the inclined surface of the arc plate, the contact end of the elastic mechanism is squeezed inward. The elastic mechanism drives the drive mechanism, which in turn drives the adjustment mechanism. The adjustment mechanism adjusts the three directional countermeasure antennas from an outer triangular array to an inner triangular array. This process is precisely the process of the directional countermeasure antennas rotating to diagonally above or directly above the drone. Compared to the outer triangular array, the inner triangular array has directional countermeasure antennas that are closer to each other, reducing the interference signal of the directional countermeasure antennas. The signal transmission is more concentrated and stronger, capable of interfering with drones flying at higher altitudes, either diagonally or directly above. It is worth noting that when the directional counter-attack antenna rotates to diagonally or directly above, the contact end of the elastic mechanism remains on the arc-shaped surface inside the arc-shaped plate, ensuring the directional counter-attack antenna is always in the inner triangular array. This invention allows the directional counter-attack antenna to maintain normal signal strength when in horizontal or diagonally downward regions, reducing harm or signal interference to people, animals, or base stations. When diagonally or directly above, it can interfere with drones flying higher and outside the airspace affected by normal signal strength interference. Furthermore, the enhanced interference signal transmitted diagonally or directly above will not directly contact people, animals, or base stations, significantly reducing harm and interference. Attached Figure Description

[0013] Figure 1 The three-dimensional representation of the present invention Figure 1 ;

[0014] Figure 2 The three-dimensional representation of the present invention Figure 2 ;

[0015] Figure 3 The three-dimensional representation of the present invention Figure 3 ;

[0016] Figure 4 The signal transmitting device of the present invention is three-dimensional. Figure 1 ;

[0017] Figure 5 For the present invention Figure 4 A magnified view of a portion of point a.

[0018] Figure 6 The signal transmitting device of the present invention is three-dimensional. Figure 2 ;

[0019] Figure 7 For the present invention Figure 6 A magnified view of a section at point b in the middle;

[0020] Figure 8 A perspective view of the signal transmitting device of the present invention with part of the cylindrical body removed;

[0021] Figure 9 For the present invention Figure 8 A magnified view of a section at point c in the middle;

[0022] Figure 10 A perspective view of the signal transmitting device of the present invention with the cylinder removed and the sleeve cut open;

[0023] Figure 11 For the present invention Figure 10 A magnified view of a portion at point d in the middle;

[0024] Figure 12 This is a perspective view of the directional countermeasure antenna of the present invention when it is rotated to a vertically upward angle;

[0025] Figure 13 For the present invention Figure 12 A magnified view of a section at point e.

[0026] Attached Figures: 1. Gimbal, 2. First Gear Motor, 3. Shaft Seat, 4. Platform, 5. Bearing Frame, 6. First Bearing, 7. Rotating Shaft, 8. U-shaped Base, 9. Second Gear Motor, 10. Camera, 11. Mounting Frame, 12. Third Gear Motor, 13. Detector, 14. Directional Countermeasure Antenna, 15. Mounting Plate, 16. Arc Plate, 17. Circular Plate, 18. Circular Seat, 19. Second Bearing, 20. First Rotating Rod, 21. First Gear, 22. V-Shaped Plate, 23. Fixing Strip, 24. Third Bearing, 25. Second Rotating Rod, 26. Second Gear, 27. Cylinder, 28. Fourth Bearing, 29. Third Rotating Rod, 30. Vertical Bevel Gear, 31. Third Gear, 32. Horizontal Bevel Gear, 33. Sleeve, 34. L-shaped Lever, 35. Piston Plate, 36. Spring, 37. L-shaped Connecting Plate, 38. Rack, 39. Reinforcing Rib. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please refer to Figure 1-3 This invention provides a drone reconnaissance and countermeasure device, including a gimbal 1 fixed on the ground. A first reduction motor 2 is mounted on the gimbal 1. A bearing seat 3 is mounted on the output shaft of the first reduction motor 2. A platform 4 is mounted on the bearing seat 3. The first reduction motor 2 drives the bearing seat 3, which in turn drives the platform 4 to rotate 360° horizontally. Bearing brackets 5 are mounted on both sides of the platform 4. First bearings 6 are mounted on the bearing brackets 5. A rotating shaft 7 is mounted inside the first bearing 6. The rotating shaft 7 has a hollow internal structure and a U-shaped base 8 is mounted on the rotating shaft 7. A second reduction motor 9 is mounted on one of the bearing brackets 5. The output shaft of the speed motor 9 is located inside the rotating shaft 7 and is fixedly connected to the rotating shaft 7. The second speed motor 9 drives the rotating shaft 7 to rotate in the first bearing 6. The rotating shaft 7 drives the U-shaped base 8 to rotate. It is worth noting that the longitudinal rotation angle of the U-shaped base 8 driven by the second speed motor 9 is 90° from horizontal to vertical, or from vertical to horizontal. Then, the first speed motor 2 drives the platform 4 and all the components on the platform 4 to rotate 360° in the horizontal direction, so that the directional countermeasure antenna 14 on the U-shaped base 8 can transmit its signal within the upper half of the sphere, that is, within the hemispherical range.

[0029] A high-precision camera 10 is mounted on the U-shaped base 8, featuring high magnification, night vision, and focus control capabilities. It captures video of the flying drone and analyzes its status. A fixed frame 11 is mounted on one of the bearing brackets 5, and a third reduction motor 12 is mounted on the fixed frame 11. A detector 13 is mounted on the third reduction motor 12. The third reduction motor 12 drives the detector 13 to rotate, allowing the detector 13 to acquire real-time data from multiple drones in the air. This data includes current gimbal GPS, drone GPS, drone serial number, drone altitude, and refresh time. Therefore, existing drone reconnaissance and countermeasures technologies cannot detect drone signals. The interference principle is that the detector 13 acquires data from the drone, and the detector 13 sends a feedback signal to the first reduction motor 2. The first reduction motor 2 drives the platform 4 and all components on the platform 4 to rotate horizontally, so that the camera 10 captures and aligns with the drone's horizontal flight position. Then, the second reduction motor 9 drives the U-shaped base 8, the directional countermeasure antenna 14, and the camera 10 to rotate within a 90° vertical range. By accurately capturing the drone's flight position through the horizontal and vertical intersection, video is captured and the drone is analyzed in detail. After analysis, the signal is sent to the directional countermeasure antenna 14, which transmits interference signals to the drone, interfering with the drone and causing it to land or return to leave the area.

[0030] A signal transmitting device is installed at the bottom of the U-shaped base 8. Three directional countermeasure antennas 14 are installed on the signal transmitting device, forming a triangular array. The signal transmitting device includes a fixing plate 15, an adjustment mechanism, and a driving mechanism. The fixing plate 15 is fixed on the U-shaped base 8. The three directional countermeasure antennas 14 are installed on the adjustment mechanism. The fixing plate 15 is equipped with an adjustment mechanism, and the adjustment mechanism is equipped with a driving mechanism. An elastic mechanism is installed inside the driving mechanism. An arc-shaped plate 16 is installed on the platform 4. One end face of the arc-shaped plate 16 is inclined. After the elastic mechanism touches the arc-shaped plate 16, it drives the driving mechanism. The driving mechanism drives the adjustment mechanism, and the adjustment mechanism adjusts the three directional countermeasure antennas 14 from an outer triangular array to an inner triangular array. The signal transmitting device is parallel to the U-shaped base 8.

[0031] Please refer to Figure 4-7The adjustment mechanism includes a circular plate 17, a fixing plate 15 on the circular plate 17, a circular seat 18 on the circular plate 17, a set of second bearings 19 arranged in a triangular array on the circular seat 18, a first rotating rod 20 on the second bearings 19, a first gear 21 on the first rotating rod 20, a V-shaped plate 22 on the first gear 21, a fixing strip 23 on the V-shaped plate 22, a directional countermeasure antenna 14 on the fixing strip 23, the directional countermeasure antenna 14 being fixed to the fixing strip 23, and a power cord being provided at the bottom of each directional countermeasure antenna 14, the other end of which is connected to the U-shaped base 8. The U-shaped base 8 has an internal electrical circuit, which is existing technology and will not be described in detail. A third bearing 24 is arranged on the circular base 18 between the second bearings 19. A second rotating rod 25 is arranged on the third bearing 24. A second gear 26 is arranged on the second rotating rod 25. The second gear 26 meshes with each of the first gears 21. When the second rotating rod 25 rotates on the third bearing 24, the second rotating rod 25 drives the second gear 26 to rotate. The second gear 26 simultaneously drives the three first gears 21 to rotate on the second bearing 19. Note: The three first gears 21 do not contact each other. An adjustment mechanism is arranged on the other side of the circular plate 17.

[0032] Please refer to Figure 8-13 The driving mechanism includes a cylinder 27 fixed on a circular plate 17. A fourth bearing 28 is provided on the inner wall of the cylinder 27. A third rotating rod 29 is provided on the fourth bearing 28. A vertical bevel gear 30 and a third gear 31 are provided on the third rotating rod 29. A second rotating rod 25 passes through the circular seat 18 and the circular plate 17 and has a horizontal bevel gear 32 at its end. The second rotating rod 25 movably passes through the circular seat 18 and the circular plate 17 and the circular seat 18 and the circular plate 17 are not fixed together. It meshes with the horizontal bevel gear 32 and the vertical bevel gear 30. Note: The third gear 31, the vertical bevel gear 30 and the horizontal bevel gear 32 do not contact each other. An elastic mechanism is provided inside the cylinder 27. One end of the elastic mechanism meshes with the third gear 31 and the other end of the elastic mechanism passes through the cylinder 27.

[0033] The elastic mechanism includes a sleeve 33 fixed to the bottom of the cylinder 27. A lever 34 is installed inside the sleeve 33, with one end penetrating the cylinder 27 and the other end penetrating the sleeve 33. The lever 34 movably passes through both the cylinder 27 and the sleeve 33. A piston plate 35 connected to the lever 34 is installed inside the sleeve 33. A spring 36 is also installed inside the sleeve 33, sleeved on the lever 34. One end of the spring 36 is connected to the piston plate 35, and the other end is connected to the sleeve 33. The spring 36 is positioned between the piston plate 35 and the sleeve 33. The lever 34 is compressed or rebounded. One end of the lever 34 is provided with an L-shaped connecting plate 37. The L-shaped connecting plate 37 is provided with a rack 38. The rack 38 meshes with the third gear 31. The movement of the lever 34 drives the L-shaped connecting plate 37 and the rack 38 to move. The movement of the rack 38 drives the third gear 31 to rotate. The end face of the lever 34 that passes through the cylinder 27 is semi-circular, which facilitates smooth contact with the arc plate 16. The platform 4 is provided with a reinforcing rib 39. The reinforcing rib 39 is connected to the bearing bracket 5. The reinforcing rib 39 makes the bearing bracket 5 more firmly fixed on the platform 4.

[0034] The working principle of this invention is as follows: When the UAV flies to an angle above or directly above the reconnaissance countermeasure device, the second reduction motor 9 drives the rotating shaft 7 to rotate on the first bearing 6. The rotating shaft 7 drives the U-shaped base 8 and the signal transmitting device at the bottom of the U-shaped base 8 to rotate counterclockwise from a horizontal position. When the lever 34 contacts the inclined surface of the arc plate 16, as the contact distance on the inclined surface becomes shorter, the lever 34 gradually moves towards the inside of the sleeve 33. The lever 34 drives the piston plate 35 to move closer to the third gear 31, and the spring... Spring 36 is compressed, lever 34 drives L-shaped connecting plate 37 and rack 38 to move upward. Rack 38 drives third gear 31 and vertical bevel gear 30 to rotate counterclockwise. Vertical bevel gear 30 drives third rotating rod 29 to rotate on fourth bearing 28. Vertical bevel gear 30 drives horizontal bevel gear 32 to rotate clockwise. Horizontal bevel gear 32 drives second rotating rod 25 and second gear 26 to rotate on third bearing 24. Second gear 26 simultaneously drives three first gears 21 to rotate counterclockwise. First gear 21 drives first rotating rod 25 to rotate counterclockwise. Shaft 20 rotates on the second bearing 19, and the first gear 21 drives the V-shaped plate 22, the fixing bar 23, and the directional countermeasure antenna 14 to rotate, causing the three directional countermeasure antennas 14 in the original triangular array to rotate to the inner circle. The three directional countermeasure antennas 14 move closer to each other, making the interference signal emitted by the UAV stronger. At this moment, the lever 34 moves from the inclined surface of the arc plate 16 to the arc surface inside the arc plate 16. As the lever 34 continues to rotate in the vertical direction on the arc surface of the arc plate 16, the lever... 34 itself will not move within the sleeve 33, meaning that the rack 38 will no longer move and the first gear 21 will no longer rotate. Therefore, during the movement on the arc surface from the upper oblique position to the vertical position, the directional countermeasure antenna 14 is always in the inner triangular array. When the UAV is in the lower oblique or horizontal position, the second reduction motor 9 drives the signal transmitting device to rotate from the vertical or upper oblique position to the lower oblique or horizontal position. The lever 34 disengages from the arc plate 16, and the directional countermeasure antenna 14 resets to the outer triangular array.

[0035] This invention is simple to operate, convenient to use, and suitable for widespread promotion and application. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone reconnaissance countermeasure device, comprising a gimbal (1), a first reduction motor (2) mounted on the gimbal (1), a bearing seat (3) mounted on the output shaft of the first reduction motor (2), a platform (4) mounted on the bearing seat (3), bearing brackets (5) mounted on both sides of the platform (4), a first bearing (6) mounted on the bearing brackets (5), a rotating shaft (7) mounted inside the first bearing (6), the rotating shaft (7) having a hollow internal structure, a U-shaped base (8) mounted on the rotating shaft (7), a second reduction motor (9) mounted on one of the bearing brackets (5), the output shaft of the second reduction motor (9) being mounted inside the rotating shaft (7) and fixedly connected to the rotating shaft (7), a camera (10) mounted on the U-shaped base (8), a fixed frame (11) mounted on one of the bearing brackets (5), a third reduction motor (12) mounted on the fixed frame (11), and a detector (13) mounted on the third reduction motor (12), characterized in that, A signal transmitting device is provided at the bottom of the U-shaped base (8). Three directional counter-antennas (14) are provided on the signal transmitting device. The three directional counter-antennas (14) form a triangular array. The signal transmitting device includes a fixed plate (15), an adjustment mechanism and a driving mechanism. The fixed plate (15) is fixed on the U-shaped base (8). Three directional counter-antennas (14) are provided on the adjustment mechanism. An adjustment mechanism is provided on the fixed plate (15). A driving mechanism is provided on the adjustment mechanism. An elastic mechanism is provided inside the driving mechanism. An arc plate (16) is provided on the platform (4). One end face of the arc plate (16) is a slope. After the elastic mechanism touches the arc plate (16), it drives the driving mechanism. The driving mechanism drives the adjustment mechanism. The adjustment mechanism adjusts the three directional counter-antennas (14) from an outer triangular array to an inner triangular array. The adjustment mechanism includes a circular plate (17), a fixed plate (15) on the circular plate (17), a circular seat (18) on the circular plate (17), a set of second bearings (19) on the circular seat (18), the second bearings (19) are arranged in a triangular array, a first rotating rod (20) on the second bearings (19), a first gear (21) on the first rotating rod (20), a V-shaped plate (22) on the first gear (21), a fixing strip (23) on the V-shaped plate (22), a directional counter-attack antenna (14) on the fixing strip (23), a third bearing (24) on the circular seat (18) between the second bearings (19), a second rotating rod (25) on the third bearing (24), a second gear (26) on the second rotating rod (25), the second gear (26) meshing with each of the first gears (21), and an adjustment mechanism on the other side of the circular plate (17). The driving mechanism includes a cylinder (27) fixed on a circular plate (17). A fourth bearing (28) is provided on the inner wall of the cylinder (27). A third rotating rod (29) is provided on the fourth bearing (28). A vertical bevel gear (30) and a third gear (31) are provided on the third rotating rod (29). A second rotating rod (25) passes through the circular seat (18) and the circular plate (17) and is provided with a transverse bevel gear (32) at its end. The transverse bevel gear (32) meshes with the vertical bevel gear (30). An elastic mechanism is provided inside the cylinder (27). One end of the elastic mechanism meshes with the third gear (31), and the other end of the elastic mechanism passes through the cylinder (27).

2. The UAV reconnaissance and countermeasure device according to claim 1, characterized in that, The elastic mechanism includes a sleeve (33) fixed to the bottom of the cylinder (27), a lever (34) is provided inside the sleeve (33), one end of the lever (34) passes through the cylinder (27) and the other end passes through the sleeve (33), a piston plate (35) connected to the lever (34) is provided inside the sleeve (33), a spring (36) is provided inside the sleeve (33), the spring (36) is sleeved on the lever (34), one end of the spring (36) is connected to the piston plate (35) and the other end is connected to the sleeve (33), an L-shaped connecting plate (37) is provided at one end of the lever (34), a rack (38) is provided on the L-shaped connecting plate (37), and the rack (38) meshes with the third gear (31).

3. The UAV reconnaissance and countermeasure device according to claim 2, characterized in that, The end face of the lever (34) that passes through the cylinder (27) is semi-circular.

4. The UAV reconnaissance and countermeasure device according to claim 1, characterized in that, The platform (4) is provided with reinforcing ribs (39), which are connected to the bearing frame (5).

Images