Corner reflector system with variable radar reflection characteristics

Abstract

The application provides a corner reflector system with variable radar reflection characteristics, relates to the technical field of corner reflectors, and sets two first corner reflections and two second corner reflections with different sizes on each frame assembly, sets a first moving member and a second moving member on the frame assembly, drives the gear shifting assembly to move to a gear shifting position by a driving assembly, then rotates the rotating base relative to the limiting seat, so that the connecting member is selectively connected with the first moving member or the second moving member, after the connecting member is connected with the corner reflection, the gear shifting assembly is driven to move by the driving assembly, so that the first corner reflection or the second corner reflection is opened and used, so that the radar reflection characteristic curve can be changed according to the actual use environment and battlefield situation, the replacement method is convenient and easy, the technical problem that the corner reflector only has single radar reflection characteristic and cannot be adjusted according to actual needs in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of corner reflector technology, and in particular to a corner reflector system with variable radar reflection characteristics. Background Technology

[0002] Corner reflectors are electromagnetic wave reflectors made of metal sheets in various specifications for different applications. Corner reflectors can reflect electromagnetic waves of various incident angles and frequencies in their original direction, generating strong reflected signals. Therefore, they have a wide range of applications. They can form strong targets in radar detection to serve as warnings, and can be used in safety fields such as maritime distress rescue and ship navigation, especially in foggy weather with poor visibility.

[0003] In existing technologies, corner reflectors typically employ a rigid structural design, with a fixed-shape reflective surface composed of metal sheets or mesh. This type of rigid corner reflector provides stable radar reflection characteristics, ensuring reliable reflected signals under various environmental conditions. Due to its stable reflection characteristics and ease of manufacture, rigid corner reflectors are widely used in military, maritime, and aviation fields to enhance the radar echo of targets, increase detection probability, or act as decoys to jam enemy radar.

[0004] However, traditional rigid corner reflectors possess only a single radar reflection characteristic, and the size and shape of their reflective surface cannot be adjusted according to actual needs. This fixed characteristic makes their reflected signals easily recorded and analyzed by enemy radar systems, forming specific radar reflection characteristic curves. When ships are conducting navigation missions overseas, if they use corner reflectors of fixed specifications for extended periods, their radar reflection characteristics may be known to the enemy, allowing foreign guided weapons to adjust their parameters accordingly, improving the accuracy of ship identification and strikes. Summary of the Invention

[0005] The purpose of this invention is to provide a corner reflector system with variable radar reflection characteristics, so as to alleviate the technical problem that rigid corner reflectors in the prior art have only a single radar reflection characteristic and cannot be adjusted according to actual needs.

[0006] The corner reflector system with variable radar reflection characteristics provided by the present invention includes: a corner reflector component, a drive component, a shifting component, and a frame component; In a first aspect, the corner reflector system with variable radar reflection characteristics provided by the present invention includes: a corner reflector component, a drive component, a shifting component, and a frame component; The corner reflector assembly includes a first movable component, a first corner reflector, a second corner reflector, and a second movable component. The first movable component is connected to the first corner reflector, and the second movable component is connected to the second corner reflector. The first and second corner reflectors are mounted on the frame assembly, which has a first sliding path and a second sliding path. The first and second moving members move along the first and second sliding paths, respectively. The drive component is mounted on the frame component and is connected to the gear shifting component in a transmission manner. The drive component is used to drive the gear shifting component to move up and down. The shifting assembly includes a rotating base, a limiting seat, and a connecting member. The rotating base is provided with the connecting member, and the rotating base is rotatably connected to the limiting seat so that the rotating base can rotate relative to the limiting seat, and the connecting member can selectively connect to the first moving member or the second moving member.

[0007] In an optional implementation, The connecting component includes a push-pull electromagnet and a connecting seat; Both the push-pull electromagnet and the connecting seat are mounted on the rotating base. The push-pull electromagnet has a magnetic shaft, which extends or retracts depending on the energized state of the push-pull electromagnet. When the magnetic shaft is in the extended state, it extends into the connecting seat. Each of the first moving member and each of the second moving members is provided with a connecting lug, and the rotating base is provided with a through hole for the connecting lug to pass through. The connecting lug has a connecting hole for the magnetic shaft in the extended state to pass through, so that the first moving member or the second moving member is connected to the magnetic shaft between the push-pull electromagnet and the connecting base.

[0008] In an optional implementation, The shifting assembly also includes a shifting drive component and a transmission component; The gear shifting drive component is disposed inside the limiting seat; The transmission component includes a first transmission gear and a second transmission gear. The first transmission gear is connected to the drive end of the gear shifting drive component, and the second transmission gear is fixedly connected to the rotating base. The first transmission gear and the second transmission gear are meshed together. The driving force generated by the gear shifting drive component is transmitted to the rotating base through the first transmission gear and the second transmission gear, so that the rotating base rotates relative to the limiting seat.

[0009] In an optional implementation, The shifting assembly also includes a rotating sleeve; The top end of the rotating sleeve passes through the rotating base and is fixedly connected to the limiting seat. The rotating sleeve is connected to the rotating base bearing so that the rotating base can rotate around the rotating sleeve. The second transmission gear is sleeved on the rotating sleeve; The bottom end of the rotating sleeve is provided with a support plate, which is used to support the rotating base. The driving force generated by the driving component acts on the support plate to drive the rotating base and the limiting seat to move up and down.

[0010] In an optional implementation, The drive assembly includes a lifting drive component, a drive square shaft, a drive screw, and a lifting platform; The lifting drive component is connected to the drive screw via a transmission, and the lifting drive component is used to drive the drive screw to rotate along its own axis; The drive square shaft passes through the limiting seat and the rotating base. The drive square shaft is provided with a sliding groove with an opening facing laterally. The drive screw passes through the sliding groove. The lifting platform passes through the sliding groove and is threadedly connected to the drive screw. The lifting platform moves up and down along the sliding groove under the rotation drive of the drive screw, so that the lifting platform pushes the support plate to move up and down.

[0011] In an optional implementation, The drive assembly also includes a fixing plate; The fixed plate is connected to the top of the frame assembly, the lifting drive component is fixedly mounted on the fixed plate, and the drive shaft is connected to the fixed plate.

[0012] In an optional implementation, The frame assembly includes uprights and horizontal bars. Multiple horizontal bars are arranged around the outer periphery of the uprights to form a cross frame structure. Each horizontal bar is provided with a first corner bracket and a second corner bracket. The outer periphery of the uprights facing each horizontal bar is provided with a first movable member and a second movable member. The outer periphery of the upright is provided with a first sliding groove and a second sliding groove on the side facing each of the horizontal bars. The first sliding groove forms the first sliding path, and the second sliding groove forms the second sliding path. The first moving member is slidably connected to the first sliding groove, and the second moving member is slidably connected to the second sliding groove.

[0013] In an optional implementation, The upright is square and has four sides. Each side has a first groove and a second groove, for a total of eight grooves. The eight grooves are named as first groove, second groove, third groove, fourth groove, fifth groove, sixth groove, seventh groove and eighth groove in a clockwise direction. The first groove, the third groove, the sixth groove, and the eighth groove are respectively used for the lifting and sliding of each first moving component; The second, fourth, fifth, and seventh slots are used for the lifting and sliding of each of the second moving components; The connecting components are provided in four sets. When switching to the first angle reverse working condition, the four sets of connecting components are respectively connected to the four first moving components. When switching to the second angle reverse working condition, the four sets of connecting components are respectively connected to the four second moving components.

[0014] In an optional implementation, The frame assembly also includes a support frame and a rotary table; The rotating shaft is fixed to the upright, one end of the support frame is connected to the horizontal bar, and the other end of the support frame is rotatably connected to the rotating shaft, so that the horizontal bar can rotate relative to the upright.

[0015] In an optional implementation, The angle reflector assembly also includes a fixed shaft; The fixed shaft is fixed to the upright, and the right-angled sides of the first and second angled inverted corners are both fixed to the fixed shaft.

[0016] The corner reflector system with variable radar reflection characteristics provided by this invention involves setting two different sizes of first and second corner reflectors on each frame component, and correspondingly setting a first and a second moving component on the frame component. A drive component moves a shifting component to a shifting position. Then, by rotating the base relative to the limiting seat, the connecting component selectively connects to the first or second moving component. After the connecting component connects to the corner reflector, the drive component moves the shifting component, thereby opening the first or second corner reflector for use. This allows the radar reflection characteristic curve to be changed according to the actual use environment and battlefield conditions, and the replacement method is convenient and easy. This alleviates the technical problem in the prior art where corner reflectors only have a single radar reflection characteristic and cannot be adjusted according to actual needs. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention in the first corner deflection state; Figure 2 A schematic diagram of the corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention from another perspective when in the first angle anti-deployment state; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 A schematic diagram of the structure of the corner reflector component in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the driving component in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 6 A schematic diagram of the installation of the driving component in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 A schematic diagram of the shifting component in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 9 A schematic diagram of the installation structure of the shifting component in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 10 for Figure 9 Enlarged structural diagram at point C; Figure 11 A schematic diagram of the frame assembly in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 12 This is a schematic diagram of the frame assembly in a retracted state in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention. Figure 13 A schematic diagram of the frame assembly in the deployed state of a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 14 for Figure 13 Enlarged structural diagram at point D; Figure 15 A schematic diagram of the shifting component moving to the shifting position in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention; Figure 16 for Figure 15 Enlarged structural diagram at point E; Figure 17 A schematic diagram of the structure of the shifting component in the corner reflector system with variable radar reflection characteristics provided in the embodiment of the present invention when it descends to the position where the connecting ear passes through the through hole; Figure 18 for Figure 17 Enlarged structural diagram at point F; Figure 19 for Figure 18 Enlarged structural diagram at point H; Figure 20 A schematic diagram of the structure of the corner reflector system with variable radar reflection characteristics provided in the embodiment of the present invention in the second corner anti-deployment state; Figure 21 for Figure 20 Enlarged structural diagram at point I; Figure 22 A schematic diagram of the structure of a corner reflector system with variable radar reflection characteristics during gear shifting, provided in an embodiment of the present invention; Figure 23 for Figure 22 Enlarged structural diagram at point J; Figure 24 for Figure 23 Enlarged structural diagram at point K; Figure 25 A schematic diagram of the structure of a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention during the first corner deflection process; Figure 26 for Figure 25 Enlarged structural diagram at point M; Figure 27 This is a schematic diagram showing the arrangement of the first corner reflector, the second corner reflector, the first moving component, the second moving component, the upright, and the rotating base in a corner reflector system with variable radar reflection characteristics provided in an embodiment of the present invention.

[0019] Icons: 1-Angle reflector assembly; 11-First moving component; 12-First angle reflector; 13-Second angle reflector; 14-Second moving component; 15-Fixed shaft; 2-Drive assembly; 21-Lifting drive component; 22-Fixed plate; 23-Drive square shaft; 24-Drive screw; 25-Lifting platform; 3-Gear shifting assembly; 31-Rotating base; 32-Push-pull electromagnet; 321-Magnetic shaft; 33-Power module; 34-Rotating sleeve; 35-Limit seat; 36-Transmission component; 37-Electrical system; 38-Gear shifting drive component; 39-Bearing plate; 4-Frame assembly; 41-Upright pole; 42-Horizontal pole; 43-Support frame; 44-Rotating shaft platform; 100-First slot; 200-Second slot; 300-Third slot; 400-Fourth slot; 500-Fifth slot; 600-Sixth slot; 700-Seventh slot; 800-Eighth slot. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] like Figures 1 to 27As shown, the corner reflector system with variable radar reflection characteristics provided in this embodiment includes a corner reflector component 1, a drive component 2, a shifting component 3, and a frame component 4. The corner reflector component 1, as the direct execution unit of RCS output, includes two sets of reflection units: a first moving component 11 and a first corner reflector 12, and a second moving component 14 and a second corner reflector 13. The two units correspond to different radar reflection characteristic curves. The first corner reflector 12 is used to generate a higher amplitude RCS response, i.e., a high radar reflection curve state, and the second corner reflector 13 is used to generate a lower amplitude RCS response, i.e., a low radar reflection curve state.

[0025] The frame component 4 has a central load-bearing structure with a vertical pole 41 and multiple horizontal poles 42 arranged in a cross shape along its outer periphery to form a stable cross-shaped spatial support skeleton. Each horizontal pole 42 is equipped with a first angle counter 12 and a second angle counter 13, and a first moving component 11 and a second moving component 14 are integrated on the side of the vertical pole 41, thereby achieving omnidirectional and symmetrical RCS control capability in three-dimensional space.

[0026] The drive assembly 2 is rigidly connected to the upright 41. Through transmission, the rotational motion is converted into axial displacement, driving the shift assembly 3 to rise and fall along the upright 41. The shift assembly 3 includes a rotating base 31, a limiting seat 35, and a connecting member. Through the relative rotation between the rotating base 31 and the limiting seat 35, the connecting member can selectively establish a mechanical connection with the first moving member 11 or the second moving member 14 in space, thereby triggering the deployment action of the corresponding angle anti-unit, and finally realizing the on-demand switching of the RCS characteristics of the entire ship.

[0027] The connecting components include a push-pull electromagnet 32 ​​and a connecting seat, both of which are integrated on the rotating base 31. The push-pull electromagnet 32 ​​is equipped with a telescopic magnetic shaft 321. When energized, the magnetic shaft 321 retracts, releasing the constraint on the moving components and making room for gear shifting. After de-energization, the magnetic shaft 321 automatically extends under the action of the elastic reset mechanism and inserts into the connecting seat to complete self-locking.

[0028] Each of the first moving component 11 and the second moving component 14 is provided with a connecting lug with a through hole, and the rotating base 31 is provided with a matching through hole. When the shifting assembly 3 is lowered to a designated height by the drive assembly 2, the connecting lug of a certain moving component passes through the through hole from below and reaches a preset position. At this time, the push-pull electromagnet 32 ​​is de-energized, and the magnetic shaft 321 passes through the through hole of the connecting lug, clamping the moving component between the magnetic shaft 321 and the connecting base, forming a stable and reliable mechanical connection. This structural design not only realizes contactless and rapid engagement and disengagement, but also ensures the long-term stability and repeatability of the connection state in harsh environments such as high humidity, salt spray, and vibration at sea, providing deterministic mechanical protection for RCS state switching.

[0029] The gear shifting assembly 3 also includes a gear shifting drive component 38 and a transmission component 36. The gear shifting drive component 38 is preferably a servo motor installed inside the limiting seat 35. The drive end of the gear shifting drive component is fixedly connected to the first transmission gear, and the second transmission gear is fixedly connected to the rotating base 31. The second transmission gear meshes with the first transmission gear. After the servo motor is started, the driving force is efficiently transmitted to the rotating base 31 through the gear pair, driving it to complete a 180° rotation around its own axis, so that the connecting component is accurately aligned with the position of the target moving component.

[0030] The inner wall of the limit seat 35 also integrates a control electrical system 37. The control electrical system receives shift command signals from the shipboard mission management system and sends control commands to the steering gear and push-pull electromagnet 32 ​​based on these signals, thereby realizing the shift operation.

[0031] The power module 33 adapted to the push-pull electromagnet 32 ​​is installed on the rotating base 31, while the power module 33 adapted to the servo motor is fixed to the inner wall of the limit seat 35.

[0032] The gear shifting assembly 3 also includes a rotating sleeve 34. The top end of the rotating sleeve 34 passes through the rotating base 31 and is rigidly fastened to the limiting seat 35. The bottom end extends to the bottom of the rotating base 31 and is provided with a support plate 39. The rotating sleeve 34 and the rotating base 31 are connected by bearings, so that the rotating base 31 can rotate freely around the rotating sleeve 34 under the constraint of the limiting seat 35, without interfering with its overall lifting and lowering movement. The second transmission gear is sleeved on the outside of the rotating sleeve 34. The support plate 39, as the force transmission structure for lifting and lowering, is directly subjected to the thrust output by the drive assembly 2, thereby driving the entire gear shifting assembly 3 to lift and lower synchronously. This realizes the two actions of gear selection and lifting and engaging, which not only ensures the gear shifting accuracy, but also improves the stability and repeatability of the lifting and lowering process.

[0033] The drive assembly 2 includes a lifting drive component 21, a drive square shaft 23, a drive screw 24, and a lifting platform 25. The lifting drive component 21 establishes a transmission connection with the drive screw 24 through a coupling or gear pair, so that the drive screw 24 can rotate controllably around its own axis. The drive square shaft 23 vertically passes through the limiting seat 35 and the rotating base 31, and its side wall has a radial sliding groove, into which the drive screw 24 vertically passes. The lifting platform 25 extends and has a connecting end, passes through the sliding groove and is threadedly connected to the drive screw 24. When the drive screw 24 rotates, the lifting platform 25 is constrained by the thread and the sliding groove, thus making the lifting platform 25 move linearly up and down along the direction of the sliding groove. The top of the lifting platform 25 abuts against the bottom of the bearing plate 39, converting the rotational motion into an axial thrust on the gear shifting assembly 3, thereby controlling the lifting of the gear shifting assembly 3. Due to the characteristics of the threaded transmission, the current position can be maintained unchanged when the lifting drive component 21 is de-energized, ensuring that the angle-reversing assembly 1 maintains a stable posture for a long time after deployment, and avoiding accidental displacement caused by hull swaying or wind load.

[0034] To improve the installation rigidity and vibration resistance of the overall structure of the drive assembly 2, the drive assembly 2 also includes a fixing plate 22. The fixing plate 22 is rigidly connected to the top of the upright 41 by high-strength bolts or welding. The lifting drive component 21 is installed on the fixing plate 22 as a whole, and the drive square shaft 23 is also reliably connected to the fixing plate 22 by a bearing seat or flange structure. This layout simplifies the assembly process between the drive assembly 2 and the upright 41.

[0035] To ensure the stability of the movement trajectories of the first moving component 11 and the second moving component 14 during lifting and unfolding, the upright 41 is provided with a first sliding groove and a second sliding groove on the side facing each horizontal bar 42, respectively. The first moving component 11 is embedded in the first sliding groove and slidably connected to the first sliding groove, and the second moving component 14 is embedded in the second sliding groove and slidably connected to the second sliding groove. The two sets of sliding grooves are spatially isolated from each other, so that the first corner reflector 12 and the second corner reflector 13 on the same side can be independently hooked, lifted, and unfolded independently without affecting each other.

[0036] Preferably, such as Figure 27 As shown, the upright 41 has a square cross-section structure with four mutually perpendicular sides; each side is provided with a first sliding groove and a second sliding groove, for a total of eight sliding grooves; they are numbered sequentially in a clockwise direction from groove 100 to groove 800. Among them, groove 100, groove 300, groove 600, and groove 800 are used to guide the lifting and lowering movement of the first moving component 11; groove 200, groove 400, groove 500, and groove 700 are used to guide the lifting and lowering movement of the second moving component 14. Correspondingly, the shift assembly 3 is equipped with four sets of connecting components, each corresponding to the position of a horizontal bar 42. When the system switches to the first angle reflector 12 working mode, the four sets of connecting components move down synchronously and establish mechanical locks with the four first moving components 11 respectively. Then, the whole assembly moves up to drive all the first angle reflectors 12 to unfold, and the entire ship presents a high radar reflection curve state. When switching to the second angle reflector 13 working mode, the four sets of connecting components move down synchronously, first unlocking with the first moving components, then the four sets of connecting components establish locks with the four second moving components 14 respectively, and then move up to unfold all the second angle reflectors 13, and the entire ship presents a low radar reflection curve state. This eight-slot, four-set symmetrical layout, combined with the asymmetrically and eccentrically arranged connecting components on the rotating base 31, allows the rotating base 31 to be rotated to switch between connecting with the first angle reflector 12 or the second angle reflector 13.

[0037] The frame assembly 4 also includes a support frame 43 and a rotating platform 44. The rotating platform 44 is fixed to the upright 41. One end of the support frame 43 is hinged to the horizontal bar 42, and the other end is hinged to the rotating platform 44, so that the horizontal bar 42 has a degree of rotational freedom relative to the upright 41, allowing it to be folded down and close to the upright 41 in the storage state, greatly reducing the storage volume and wind resistance area, which is conducive to the compact layout of the ship deck and rapid deployment and deployment. In the deployed state, the horizontal bar 42 is stably supported on the rotating platform 44 by the support frame 43, providing a stable installation reference surface and space for the angle reflector assembly 1 to deploy.

[0038] The angle reflector assembly 1 also includes a fixed shaft 15, which is radially fixed to the upright 41 and located near the root of each horizontal bar 42. The right-angle sides of the first angle reflector 12 and the second angle reflector 13 are both fixed to the fixed shaft 15, so that the two maintain a standard orthogonal reflection state during the lifting and unfolding process.

[0039] The work process is as follows: When the system is in a standby state and not in operation, all the horizontal rods 42 rotate around the rotating platform 44 via the support frame 43 to the folded position and are close to the outer wall of the vertical rod 41; the first moving component 11 and the second moving component 14 are both located at the initial high position of their respective slides, and the first angle counter 12 and the second angle counter 13 are in a folded and retracted posture.

[0040] When the shipboard mission management system issues a shift command based on real-time mission requirements, the control electrical system 37 immediately receives and decodes the signal, such as Figure 13 , Figure 14 As shown, the gear shifting assembly 3, through the lifting drive component 21 in the drive assembly 2, drives the lifting platform 25 downward, thereby moving the gear shifting assembly 3 to the designated shifting area, such as... Figure 15 , Figure 16 As shown, rotating the bottom rotating base 31 in the designated shifting area aligns the through hole with the second moving member 14; energizing the push-pull electromagnet 32 ​​causes the magnetic shaft 321 to retract.

[0041] like Figure 17 , Figure 18 As shown, during the descent process of the gear shift assembly 3: the push-pull electromagnet 32 ​​is energized, the magnetic shaft 321 is retracted, and the gear shift assembly 3 moves the lifting platform 25 downward through the rotation of the lifting drive component 21 in the drive assembly 2. It stops after the connecting hole of the second moving component 14 passes through the through hole of the bottom rotating base 31.

[0042] like Figure 18 , Figure 19 As shown, when the push-pull electromagnet 32 ​​is de-energized, the magnetic shaft 321 resets and passes through the connecting hole on the connecting ear of the second moving component 14, completing the lifting and locking of the second angle reverse 13.

[0043] Figure 20 , Figure 21 As shown, this is a schematic diagram of the low radar reflection curve unfolding process. After the second angle reflector 13 is locked by the push-pull electromagnet 32 ​​in the gear shift assembly 3, the lifting drive component 21 is connected to one end of the drive screw 24. The drive screw 24 is connected to the lifting platform 25 by a thread. The rotation of the lifting drive component 21 drives the drive screw 24 to rotate in the forward direction. The lifting platform 25 is lifted upward as the drive screw 24 rotates in the forward direction, thereby lifting the gear shift assembly 3 upward and unfolding the second angle reflector 13.

[0044] Similarly, when it is necessary to change the first angle of the radar reflection characteristic curve (reverse 12), the shifting component 3 is first lowered to [position missing] via the drive component 2. Figure 18 , Figure 19 The second moving component 14, as shown, is in the locked state, which energizes the push-pull electromagnet 32, completing the retraction of the magnetic shaft 321 and unlocking the flexible angle-reverse movement component. Subsequently, the drive component 2 first raises the shifting component 3 to... Figure 16 Change the gear position within the designated shift area.

[0045] Because the top of the top limit seat 35 is fastened to the rotating sleeve 34 and passes through the drive square shaft 23, the top limit seat 35 and the rotating sleeve 34 cannot rotate relative to the drive square shaft 23. When the rotation control electrical system 37 receives the shift signal, it drives the first transmission gear to rotate the second transmission gear via the servo motor. The second transmission gear is fastened to the bottom rotating base 31, thereby causing the bottom rotating base 31 to rotate accordingly, completing the shifting of the gear shift assembly 3.

[0046] Reissue Figure 17 , Figure 18 as well as Figure 19 The operation process involves energizing the push-pull electromagnet 32, causing the magnetic shaft 321 to retract. The shifting assembly 3, through the rotation of the lifting drive component 21 in the drive assembly 2, moves the lifting platform 25 downwards until the connecting lug of the first moving component 11 passes through the through hole of the bottom rotating base 31, at which point it stops. The push-pull electromagnet 32 ​​then deactivates the electromagnetic shaft 321, which then reverts to pass through the connecting hole of the first moving component 11, completing the first angle reversal lifting and locking mechanism. Figure 23 , Figure 24 As shown.

[0047] Figure 25 The diagram illustrates the deployment process of the first angle reflector 12, which has a high radar reflection curve. Similarly, after the first angle reflector 12 is locked by the push-pull electromagnet 32 ​​in the gear shift assembly 3, the lifting drive component 21 is connected to one end of the drive screw 24. The drive screw 24 is threadedly connected to the lifting platform 25. The rotation of the lifting drive component 21 drives the drive screw 24 to rotate forward. As the drive screw 24 rotates forward, the lifting platform 25 rises upward, thereby lifting the gear shift assembly 3 upward, causing the first angle reflector 12 to deploy.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A corner reflector system with variable radar reflection characteristics, characterized in that, include: Angle-reflecting component (1), drive component (2), gear shifting component (3) and frame component (4); The corner reflector assembly (1) includes a first moving member (11), a first corner reflector (12), a second corner reflector (13), and a second moving member (14). The first moving member (11) is connected to the first corner reflector (12), and the second moving member (14) is connected to the second corner reflector (13). The first corner reflector (12) and the second corner reflector (13) are mounted on the frame assembly (4), which has a first sliding path and a second sliding path. The first moving member (11) and the second moving member (14) move along the first sliding path and the second sliding path, respectively. The drive component (2) is disposed on the frame component (4), and the drive component (2) is connected to the gear shift component (3) in a transmission manner. The drive component (2) is used to drive the gear shift component (3) to move up and down. The shifting assembly (3) includes a rotating base (31), a limiting seat (35), and a connecting member. The rotating base (31) is provided with the connecting member, and the rotating base (31) is rotatably connected to the limiting seat (35) so that the rotating base (31) can rotate relative to the limiting seat (35) so that the connecting member can selectively connect to the first moving member (11) or the second moving member (14).

2. The corner reflector system with variable radar reflection characteristics according to claim 1, characterized in that, The connecting component includes a push-pull electromagnet (32) and a connecting seat; The push-pull electromagnet (32) and the connecting seat are both disposed on the rotating base (31). The push-pull electromagnet (32) has a magnetic shaft (321). The magnetic shaft (321) extends or retracts according to the energized state of the push-pull electromagnet (32). When the magnetic shaft (321) is in the extended state, the magnetic shaft (321) extends into the connecting seat. Each of the first moving member (11) and each of the second moving members (14) is provided with a connecting ear, and the rotating base (31) is provided with a through hole for the connecting ear to pass through. The connecting ear has a connecting hole for the magnetic shaft (321) in the extended state to pass through, so that the first moving member (11) or the second moving member (14) is connected to the magnetic shaft (321) between the push-pull electromagnet (32) and the connecting base.

3. The corner reflector system with variable radar reflection characteristics according to claim 2, characterized in that, The shift assembly (3) further includes a shift drive component (38) and a transmission component (36). The gear shifting drive component (38) is disposed inside the limiting seat (35); The transmission component (36) includes a first transmission gear and a second transmission gear. The first transmission gear is connected to the drive end of the gear shifting drive component (38), and the second transmission gear is fixedly connected to the rotating base (31). The first transmission gear and the second transmission gear are meshed together. The driving force generated by the gear shifting drive component (38) is transmitted to the rotating base (31) through the first transmission gear and the second transmission gear, so that the rotating base (31) rotates relative to the limiting seat (35).

4. The corner reflector system with variable radar reflection characteristics according to claim 3, characterized in that, The shifting assembly (3) also includes a rotating sleeve (34); The top end of the rotating sleeve (34) passes through the rotating base (31) and is fixedly connected to the limiting seat (35). The rotating sleeve (34) is connected to the rotating base (31) by a bearing so that the rotating base (31) can rotate around the rotating sleeve (34). The second transmission gear is sleeved on the rotating sleeve (34); The bottom end of the rotating sleeve (34) is provided with a support plate (39), which is used to support the rotating base (31). The driving force generated by the driving component (2) acts on the support plate (39) to drive the rotating base (31) and the limiting seat (35) to move up and down.

5. The corner reflector system with variable radar reflection characteristics according to claim 4, characterized in that, The drive assembly (2) includes a lifting drive component (21), a drive square shaft (23), a drive screw (24), and a lifting platform (25). The lifting drive component (21) is connected to the drive screw (24) in a transmission connection. The lifting drive component (21) is used to drive the drive screw (24) to rotate along its own axis. The drive square shaft (23) passes through the limiting seat (35) and the rotating base (31). The drive square shaft (23) is provided with a sliding groove with the opening facing the side. The drive screw (24) passes through the sliding groove. The lifting platform (25) passes through the sliding groove and is threadedly connected to the drive screw (24). The lifting platform (25) moves up and down along the sliding groove under the rotation drive of the drive screw (24) so ​​that the lifting platform (25) pushes the bearing plate (39) to move up and down.

6. The corner reflector system with variable radar reflection characteristics according to claim 5, characterized in that, The drive assembly (2) also includes a fixing plate (22); The fixed plate (22) is connected to the top of the frame assembly (4), the lifting drive component (21) is fixedly mounted on the fixed plate (22), and the drive shaft (23) is connected to the fixed plate (22).

7. The corner reflector system with variable radar reflection characteristics according to claim 1, characterized in that, The frame assembly (4) includes uprights (41) and horizontal bars (42). Multiple horizontal bars (42) are provided, and multiple horizontal bars (42) are arranged around the outer periphery of the uprights (41) to form a cross frame structure. Each horizontal bar (42) is provided with a first corner bracket (12) and a second corner bracket (13). The outer periphery of the uprights (41) facing each horizontal bar (42) is provided with a first moving member (11) and a second moving member (14). The outer periphery of the upright (41) is provided with a first sliding groove and a second sliding groove on the side facing each of the flat rods (42). The first sliding groove forms the first sliding path, and the second sliding groove forms the second sliding path. The first moving member (11) is slidably connected to the first sliding groove, and the second moving member (14) is slidably connected to the second sliding groove.

8. The corner reflector system with variable radar reflection characteristics according to claim 7, characterized in that, The upright (41) is square and has four sides. Each side has a first groove and a second groove, for a total of eight grooves. The eight grooves are named as first groove (100), second groove (200), third groove (300), fourth groove (400), fifth groove (500), sixth groove (600), seventh groove (700) and eighth groove (800) in a clockwise direction. The first groove (100), the third groove (300), the sixth groove (600), and the eighth groove (800) are respectively used for the lifting and sliding of each of the first moving components (11); The second groove (200), the fourth groove (400), the fifth groove (500), and the seventh groove (700) are respectively used for the lifting and sliding of each of the second moving components (14); The connecting components are provided in four groups. When switching to the working condition of connecting the first angle reversal (12), the four groups of connecting components are respectively connected to the four first moving components (11). When switching to the working condition of connecting the second angle reversal (13), the four groups of connecting components are respectively connected to the four second moving components (14).

9. The corner reflector system with variable radar reflection characteristics according to claim 7, characterized in that, The frame assembly (4) also includes a support frame (43) and a rotary table (44). The rotating shaft (44) is fixed on the upright (41), one end of the support frame (43) is connected to the flat rod (42), and the other end of the support frame (43) is rotatably connected to the rotating shaft (44) so ​​that the flat rod (42) can rotate relative to the upright (41).

10. The corner reflector system with variable radar reflection characteristics according to claim 7, characterized in that, The angle reflector assembly (1) also includes a fixed shaft (15); The fixed shaft (15) is fixed on the upright (41), and the right-angled sides of the first angle (12) and the second angle (13) are both fixed on the fixed shaft (15).

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