An unmanned aerial vehicle mounted laser radar device

Abstract

The utility model relates to the technical field of the hanging laser radar device, specifically relates to a kind of unmanned plane hanging laser radar device, including structure base plate and mounting plate, the top of structure base plate is fixed with locating block, structure base plate is located at the bottom of mounting plate, the bottom of mounting plate is internally provided with the locating groove matched with the locating block, the inside of locating block is slidably provided with limiting block, the number of limiting block is two, and spring one is fixedly connected between the two limiting blocks.The utility model inserts locating block into locating groove, inserts two fixed inserts into the limiting cavity in mounting plate using the elasticity of spring one, assembles structure base plate and mounting plate, subsequently pushes fixed insert away from limiting cavity using push plate by pressing pressing rod, so that fixed insert returns to locating block, and hand operation is realized, so that the installation or disassembly of structure can be completed within a few seconds.

Description

Technical Field

[0001] This utility model relates to the technical field of mounted lidar devices, specifically to a lidar device mounted on a drone. Background Technology

[0002] A lidar system is a radar system that uses laser beams to detect the position, velocity, and other characteristics of a target. In terms of working principle, it is not fundamentally different from microwave radar: it emits a detection signal (laser beam) towards the target, and then compares the received signal reflected back from the target (target echo) with the emitted signal. After appropriate processing, relevant information about the target can be obtained, such as the target's distance, azimuth, altitude, speed, attitude, and even shape parameters. This allows for the detection, tracking, and identification of targets such as aircraft and missiles. Lidar systems are often used for detection in UAVs, but existing UAV lidar mounting devices are not stable enough during use and are prone to abrading the UAV surface. Therefore, we propose a stable mounting structure for UAV lidar.

[0003] A search revealed a utility model patent with publication number CN211253064U, which discloses a stable mounting structure for a lidar system used on a drone. This patent relates to the field of mounting devices and includes a main top plate. An electric connecting rod is mounted on the lower outer surface of the main top plate, and a rotating shaft is mounted on the other outer surface of the electric connecting rod. A mounting device is mounted on the lower outer surface of the rotating shaft. The inclusion of buffer springs and connecting blocks helps to reduce vibration of the lidar unit during drone flight, making the lidar unit more stable and the measured data more accurate. The triangular bracket helps to place the lidar unit horizontally, making it more stable during mounting. The protective pads prevent friction between the main top plate and the drone, preventing the main top plate from abrading the drone's surface. The overall effect is better than traditional methods.

[0004] The aforementioned patent only uses the buffer spring and connecting block to reduce the vibration of the lidar body during the drone's flight, making the lidar body more stable during the drone's flight and making the measured data more accurate. However, it cannot fully support the quick manual installation or disassembly of the mounting structure, uses the traditional screw fixing method, relies too much on auxiliary tools, reduces the efficiency of field work, and is not suitable for use in different load scenarios.

[0005] Therefore, it is necessary to invent a drone-mounted lidar device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a drone-mounted lidar device. By inserting a positioning block into a positioning slot, the elasticity of a spring causes two fixing blocks to be inserted into the limiting cavity of the mounting plate, thus assembling the structural base plate with the mounting plate. Subsequently, by pressing the pressing rod, a push plate is used to push the fixing blocks away from the limiting cavity, allowing them to return to the positioning block. This allows for manual operation, enabling the installation or disassembly of the structure to be completed within seconds, far exceeding the effectiveness of traditional screw fixing methods. This solves the problems of existing technologies that cannot fully enable rapid manual installation or disassembly of mounted structures, and that traditional screw fixing methods rely too heavily on auxiliary tools, reducing fieldwork efficiency and being unsuitable for different load scenarios.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drone-mounted lidar device, comprising a structural base plate and a mounting plate. A positioning block is fixed to the top of the structural base plate, and the structural base plate is disposed at the bottom of the mounting plate. A positioning groove matching the positioning block is formed in the bottom of the mounting plate. A limiting block is slidably disposed inside the positioning block. The number of limiting blocks is set to two, and a spring is fixedly connected between the two limiting blocks. A fixing insert is fixed to the outer side of each of the two limiting blocks. A limiting cavity located on both sides of the positioning groove is symmetrically formed inside the mounting plate. A limiting plate is slidably disposed inside the limiting cavity. A spring is fixedly connected between the side of the limiting plate and the inner wall of the limiting cavity. A pressing rod penetrating the side of the mounting plate is fixed to one side of the limiting plate, and a push plate is fixed to the side of the limiting plate near the fixing insert.

[0008] Preferably, mounting ears are symmetrically fixed on both sides of the mounting plate.

[0009] Preferably, the bottom of the structural base plate is symmetrically fixed with limiting frames, and buffer blocks are movably installed inside the two limiting frames, and a stabilizing bracket is fixedly connected between the two buffer blocks.

[0010] Preferably, a shock absorber is symmetrically installed between the top of the buffer block and the inner wall of the limiting frame, and a spring is fitted on the outside of the shock absorber.

[0011] Preferably, four springs are symmetrically fixed between the bottom of the buffer block and the inner wall of the limiting frame.

[0012] Preferably, the bottom of the stabilizing bracket is fixedly connected to a base plate, and the bottom of the base plate is equipped with a lidar body.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. By inserting the positioning block into the positioning slot, the elasticity of spring one allows two fixing blocks to be inserted into the limiting cavity of the mounting plate, thus assembling the structural base plate and the mounting plate. Subsequently, pressing the pressing rod uses a push plate to push the fixing blocks away from the limiting cavity, allowing them to return to the positioning block. This can be done manually, completing the installation or disassembly of the structure within seconds, far exceeding traditional screw fixing methods. The structure is designed with two points, providing multi-point locking and extremely strong resistance to torsion and shear, preventing swaying during flight. When the fixing blocks are inserted into the limiting cavity, the tiny gaps between the positioning block and the mounting plate are completely eliminated, forming a highly rigid, sway-free whole. The pre-tightening force generated by the inclined fixing block structure, combined with the elastic expansion of spring one, far exceeds the force required to manually tighten screws, ensuring no displacement or vibration even under severe braking. This forms a stable geometric structure that effectively resists wind resistance and the shear and torsional forces caused by takeoff and landing impacts. The entire process requires no tools and can be done by hand in just a few seconds, greatly improving the efficiency of fieldwork, especially in scenarios where different loads need to be changed. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side cross-sectional view of the connection between the structural substrate and the mounting plate of this utility model.

[0018] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the connection between the limiting frame and the buffer block of this utility model;

[0020] Figure 5 This is a side view of the connection between the structural substrate and the mounting plate of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Structural base plate; 2. Positioning block; 3. Mounting plate; 4. Positioning groove; 5. Limiting block; 6. Spring 1; 7. Fixing insert; 8. Limiting cavity; 9. Limiting plate; 10. Spring 2; 11. Pressing rod; 12. Push plate; 13. Mounting ear; 14. Limiting stand; 15. Buffer block; 16. Vibration damper; 17. Spring 3; 18. Spring 4; 19. Stabilizing bracket; 20. Base plate; 21. LiDAR body. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-5 The UAV-mounted lidar device shown includes a structural base plate 1 and a mounting plate 3. A positioning block 2 is fixed on the top of the structural base plate 1, and the structural base plate 1 is located at the bottom of the mounting plate 3. A positioning groove 4 matching the positioning block 2 is opened in the bottom of the mounting plate 3. A limit block 5 is slidably arranged inside the positioning block 2. The number of limit blocks 5 is set to two, and a spring 6 is fixedly connected between the two limit blocks 5. A fixing plug 7 is fixed on the outer side of each of the two limit blocks 5. The pre-tightening force generated by the inclined fixing plug 7 structure, combined with the elastic expansion of the spring 6, far exceeds the force of manually tightening screws, ensuring that no displacement or vibration will occur under severe braking, forming a stable geometric structure that can effectively resist the shear force and torsional force brought by wind resistance, take-off and landing impact.

[0025] The mounting plate 3 has symmetrically opened limiting cavities 8 on both sides of the positioning groove 4. When the fixing block 7 is inserted into the limiting cavity 8, the tiny gap between the positioning block 2 and the mounting plate 3 is completely eliminated by the fixing block 7, forming a high-rigidity, non-shaking whole.

[0026] A limiting plate 9 is slidably installed inside the limiting cavity 8. A spring 10 is fixedly connected between the side of the limiting plate 9 and the inner wall of the limiting cavity 8. A pressing rod 11 that penetrates the side of the mounting plate 3 is fixed to one side of the limiting plate 9. A push plate 12 is fixed to the side of the limiting plate 9 near the fixing insert 7. By inserting the positioning block 2 into the positioning groove 4, the elasticity of the spring 6 is used to insert the two fixing inserts 7 into the limiting cavity 8 in the mounting plate 3, so that the structural base plate 1 and the mounting plate 3 are assembled. Subsequently, by pressing the pressing rod 11, the push plate 12 is used to push the fixing insert 7 away from the limiting cavity 8, so that the fixing insert 7 returns to the positioning block 2. The installation or disassembly of the structure can be completed in a few seconds by hand.

[0027] Mounting plates 3 are symmetrically fixed with mounting ears 13 on both sides. The mounting plates 3 are permanently fixed to the drone body or gimbal mounting position by the cooperation of mounting ears 13 and fastening screws. The mounting structure can be replaced separately in the future without replacing the whole system.

[0028] The bottom of the structural base plate 1 is symmetrically fixed with limiting brackets 14. Buffer blocks 15 are movably installed inside the two limiting brackets 14. A stabilizing bracket 19 is fixedly connected between the two buffer blocks 15. The stabilizing bracket 19 is preferably a triangular mechanism, which makes the lidar body 21 more stable and practical when mounted.

[0029] A shock absorber 16 is symmetrically installed between the top of the buffer block 15 and the inner wall of the limiting frame 14. A spring 17 is fitted on the outside of the shock absorber 16. The shock absorber 16 and the spring 18 work together to reduce the vibration of the lidar body 21 during the flight of the UAV, making the lidar body 21 more stable during the flight of the UAV and making the measured data more accurate.

[0030] Springs 18 are symmetrically fixed between the bottom of the buffer block 15 and the inner wall of the limiting frame 14.

[0031] The bottom of the stabilizing bracket 19 is fixedly connected to the base plate 20, and the base plate 20 is equipped with the lidar body 21.

[0032] The working principle of this practical application is as follows:

[0033] First, the mounting plate 3 is permanently fixed to the drone body or gimbal mounting position using the mounting ears 13 and fixing screws. The positioning block 2 is inserted into the corresponding positioning groove 4 in the mounting plate 3. The elastic expansion of the spring 6 helps to push the fixing block 7 into the limiting cavity 8 in the mounting plate 3, completing the quick fixed connection. When it is necessary to disassemble the mounting structure separately, simply press the pressing rod 11 and use the push plate 12 to push the fixing block 7 back into the positioning block 2. The positioning block 2, which has been removed from the insertion limit, can be removed from the mounting plate 3 along with the structural base plate 1 for individual replacement.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drone-mounted lidar device, comprising a structural base plate (1) and a mounting plate (3), characterized in that: The top of the structural base plate (1) is fixed with a positioning block (2). The structural base plate (1) is located at the bottom of the mounting plate (3). The bottom of the mounting plate (3) is provided with a positioning groove (4) that matches the positioning block (2). A limiting block (5) is slidably arranged inside the positioning block (2). There are two limiting blocks (5). A spring (6) is fixedly connected between the two limiting blocks (5). A fixing insert (7) is fixed on the outer side of each of the two limiting blocks (5). A limiting cavity (8) located on both sides of the positioning groove (4) is symmetrically arranged inside the mounting plate (3). A limiting plate (9) is slidably arranged inside the limiting cavity (8). A spring (10) is fixedly connected between the side of the limiting plate (9) and the inner wall of the limiting cavity (8). A pressing rod (11) that penetrates the side of the mounting plate (3) is fixed on one side of the limiting plate (9). A push plate (12) is fixed on the side of the limiting plate (9) that is close to the fixing insert (7).

2. The UAV-mounted lidar device according to claim 1, characterized in that: The mounting plate (3) has mounting ears (13) symmetrically fixed on both sides.

3. The UAV-mounted lidar device according to claim 1, characterized in that: The bottom of the structural base plate (1) is symmetrically fixed with limiting brackets (14), and buffer blocks (15) are movably installed inside the two limiting brackets (14). A stabilizing bracket (19) is fixedly connected between the two buffer blocks (15).

4. A UAV-mounted lidar device according to claim 3, characterized in that: A shock absorber (16) is symmetrically installed between the top of the buffer block (15) and the inner wall of the limiting stand (14), and a spring (17) is fitted on the outside of the shock absorber (16).

5. A UAV-mounted lidar device according to claim 4, characterized in that: Springs four (18) are symmetrically fixed between the bottom of the buffer block (15) and the inner wall of the limiting stand (14).

6. A UAV-mounted lidar device according to claim 3, characterized in that: The bottom of the stabilizing bracket (19) is fixedly connected to a base plate (20), and a laser radar body (21) is installed on the bottom of the base plate (20).

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