Multi-spectral surveying and mapping instrument protection mechanism carried by unmanned aerial vehicle

Abstract

This utility model discloses a protective mechanism for a multispectral mapping instrument used for land monitoring mounted on a drone, relating to the field of drone surveying technology. The utility model includes a drone body, with brackets fixedly connected to both sides of the bottom of the drone body. A mounting frame is fixedly connected to the bottom of the drone body, and a protective component is movably connected to the inner cavity of the mounting frame via a movable shaft. In use, in severe weather, an electric push rod drives a push roller to retract, and under the action of a spring reset, the mapping instrument is quickly retracted into the protective shell cavity, preventing the equipment from being directly exposed to extreme environments. Simultaneously, the cooperation of the drive motor and screw enables the automatic movement of the sealing plate, quickly sealing the bottom opening of the protective shell and forming a relatively enclosed protective space, effectively resisting external interference such as wind, rain, and sandstorms. This ensures the physical safety of the mapping instrument and prevents monitoring task interruption due to equipment damage.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) surveying and mapping technology, and in particular relates to a protective mechanism for a multispectral surveying instrument for land monitoring carried by an UAV. Background Technology

[0002] In the field of modern land resource monitoring, drones have become an important tool for acquiring land spatial information due to their advantages such as high mobility, low cost and rapid deployment. As the core payload carried by drones, multispectral mapping instruments can accurately monitor multi-dimensional parameters such as land vegetation cover, soil composition and water quality by capturing electromagnetic radiation information in different bands.

[0003] However, existing multispectral mapping instruments for land monitoring carried by drones face protection challenges in practical applications. When drones fly in complex terrain or severe weather conditions (such as strong winds, rainstorms, and sandstorms), the mapping instrument is directly exposed to the external environment and lacks an effective protective structure. This can lead to data acquisition errors caused by the vibration of the drone body, or even cause internal components to loosen and be damaged.

[0004] To address these issues, we have provided a protective mechanism for UAV-mounted multispectral mapping instruments used for land monitoring. Utility Model Content

[0005] The purpose of this utility model is to provide a protective mechanism for a multispectral mapping instrument for land monitoring carried by a drone. By combining protective components and enclosed components, it solves the problem that existing drone multispectral mapping instruments lack corresponding protective functions, which makes the electronic components inside the mapping instrument prone to failure due to external interference factors.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a protective mechanism for a multispectral mapping instrument for land monitoring mounted on a drone. It includes a drone body, with brackets fixedly connected to both sides of the bottom of the drone body. A mounting frame is fixedly connected to the bottom of the drone body. A protective component is movably connected to the inner cavity of the mounting frame via a movable shaft. A sealing component is provided at the bottom of the protective component. The protective component includes a protective shell, with both sides of the protective shell movably connected to the inner wall of the mounting frame via movable shafts. A fixed plate is fixedly connected to the top of the inner cavity of the protective shell. A movable plate is movably connected to one side of the fixed plate. A connecting frame is movably connected to one side of the movable plate. A mapping instrument is fixedly connected to the inner cavity of the connecting frame. An electric push rod is fixedly connected to one side of the top of the inner cavity of the protective shell via the fixed frame. A mounting plate is fixedly connected to the telescopic shaft of the electric push rod. A pushing frame is fixedly connected to one side of the mounting plate. A pushing roller is provided in the inner cavity of the pushing frame.

[0008] The present invention is further configured such that a positioning frame is fixedly connected to one side of the connecting frame by screws, a movable rod is connected through the inner cavity of the positioning frame, a support plate is fixedly connected to the bottom of the movable rod, and a spring is fixedly connected to the top of the support plate. The positioning frame moves and compresses the spring as the surveying instrument moves down. The spring begins to store elastic potential energy when compressed. After the pressure on the top of the surveying instrument disappears, the elastic potential energy of the spring is released, causing the positioning frame and the surveying instrument to return to the inner cavity of the protective shell.

[0009] The present invention is further configured such that the sealing component includes a drive housing, the top of which is fixedly connected to the bottom of the protective housing, a drive motor is provided on the back of the drive housing, a screw is fixedly connected to the output end of the drive motor, one end of the screw penetrates into the inner cavity of the drive housing and a threaded sleeve is threadedly connected to the surface of the screw, and a sealing plate is fixedly connected to one side of the threaded sleeve through a drive frame. When the drive motor is turned on, the output end of the drive motor drives the screw to rotate. As the screw rotates, the threaded sleeve on its surface moves axially on the surface of the screw, thereby driving the sealing plate to move and achieving the sealing of the bottom opening of the protective housing.

[0010] The present invention is further configured such that a limiting frame is fixedly connected to the bottom of one side of the inner cavity of the protective shell, and a limiting roller is movably connected to the inner cavity of the limiting frame. One side of the limiting roller is in contact with the surface of the surveying instrument. The limiting roller rolls on the surface of the surveying instrument as the surveying instrument moves up and down. The limiting effect of the two limiting rollers can maintain the stability of the surveying instrument when it moves up and down.

[0011] The present invention is further configured such that a limiting frame is fixedly connected to the back of the mounting plate, a limiting plate is movably connected to the inner cavity of the limiting frame, one side of the limiting plate is fixedly connected to the inner wall of the protective shell, and the limiting frame moves with the mounting plate on the surface of the limiting plate. The limiting structure composed of the limiting frame and the mounting plate can improve the movement stability of the mounting plate.

[0012] The present invention is further configured such that a guide rail is fixedly connected to one side of the bottom of the protective shell, and a sliding piece is movably connected to the inner cavity of the guide rail. One side of the sliding piece is fixedly connected to the surface of the sealing plate. As the sealing plate moves within the inner cavity of the guide rail, the sliding piece, through the limiting structure formed by the guide rail and the sliding piece, limits one side of the sealing plate, thereby improving the movement stability of the sealing plate.

[0013] The present invention is further configured such that a buffer pad is fixedly connected to the bottom of the bracket, and an elastic buffer material is provided in the inner cavity of the buffer pad. When the UAV lands, the buffer pad at the bottom of the bracket contacts the ground, and the impact force from the ground is applied to the buffer pad and the elastic buffer material in its inner cavity. The elasticity of the buffer pad and the elastic buffer material weakens the impact force from the ground, thereby protecting the UAV and the mapping instruments inside the protective shell.

[0014] The present invention is further configured such that an adjustment motor is provided on both sides of the mounting bracket, and the output end of the adjustment motor is fixedly connected to the movable shaft on one side of the protective shell. When the adjustment motor is turned on, the output end of the adjustment motor drives the protective shell to rotate through the movable shaft, thereby driving the surveying instrument to rotate, adjusting the angle of the surveying instrument, and improving the efficiency of shooting and surveying.

[0015] The present invention has the following beneficial effects.

[0016] 1. When this utility model is in use and encounters severe weather, the electric push rod drives the push roller to move back, and under the action of spring reset, the surveying instrument is quickly retracted into the inner cavity of the protective shell, avoiding direct exposure of the equipment to extreme environments. At the same time, the cooperation between the drive motor and the screw can realize the automatic movement of the sealing plate, quickly sealing the bottom opening of the protective shell and forming a relatively closed protective space, effectively resisting external interference such as wind, rain, and sandstorms. This not only ensures the physical safety of the surveying instrument, but also avoids the interruption of monitoring tasks due to equipment damage.

[0017] 2. This utility model uses an electric push rod to drive the push roller to move to the spring-assisted resetting of the surveying instrument, and then the drive motor drives the closed plate to move. The whole process can be completed automatically without manual intervention. The structure is compact and has strong linkage, which greatly improves the protection response efficiency. In addition, the mechanism can flexibly control the extension and retraction state of the surveying instrument according to the actual operation needs. While ensuring the protection function, it does not affect the routine monitoring and surveying work carried by the UAV. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 Three-dimensional protective mechanism for multispectral mapping instruments used for land monitoring on drones Figure 1 .

[0020] Figure 2 Three-dimensional protective mechanism for multispectral mapping instruments used for land monitoring on drones Figure 2 .

[0021] Figure 3 Protective measures for multispectral mapping instruments used for land monitoring on drones Figure 2 A magnified view of a portion of point A in the middle.

[0022] Figure 4 A schematic diagram of the protective components in the protective mechanism of a multispectral mapping instrument for land monitoring carried by a drone.

[0023] Figure 5Protective measures for multispectral mapping instruments used for land monitoring on drones Figure 4 A magnified view of a portion of point B in the middle.

[0024] In the attached diagram: 1. Unmanned aerial vehicle (UAV) body; 2. Support frame; 3. Mounting frame; 4. Protective components; 5. Enclosure components; 401. Protective shell; 402. Fixing plate; 403. Movable plate; 404. Connecting frame; 405. Surveying instrument; 406. Electric push rod; 407. Mounting plate; 408. Pushing frame; 409. Push roller; 6. Positioning frame; 7. Movable rod; 8. Support plate; 9. Spring; 501. Drive shell; 502. Drive motor; 503. Screw; 504. Threaded sleeve; 505. Enclosure plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-5 This utility model relates to a protective mechanism for a multispectral mapping instrument for land monitoring mounted on a drone. It includes a drone body 1, with brackets 2 fixedly connected to both sides of the bottom of the drone body 1. A mounting frame 3 is fixedly connected to the bottom of the drone body 1. A protective component 4 is movably connected to the inner cavity of the mounting frame 3 via a movable shaft. A sealing component 5 is provided at the bottom of the protective component 4. The protective component 4 includes a protective shell 401, with both sides of the protective shell 401 movably connected to the inner wall of the mounting frame 3 via movable shafts. The top of the inner cavity of the protective shell 401... A fixed plate 402 is fixedly connected. A movable plate 403 is movably connected to one side of the fixed plate 402. A connecting frame 404 is movably connected to one side of the movable plate 403. A surveying instrument 405 is fixedly connected to the inner cavity of the connecting frame 404. An electric push rod 406 is fixedly connected to one side of the top of the inner cavity of the protective shell 401 via a fixed frame. An installation plate 407 is fixedly connected to the telescopic shaft of the electric push rod 406. A push frame 408 is fixedly connected to one side of the installation plate 407. A push roller 409 is provided in the inner cavity of the push frame 408.

[0028] Specifically: When the electric push rod 406 is turned on, the telescopic shaft of the electric push rod 406 drives the push roller 409 to move back. At this time, the top of one side of the surveying instrument 405 moves upward and resets under the action of the spring 9. The positioning frame 6 drives the surveying instrument 405 to move upward into the inner cavity of the protective shell 401. Then, the drive motor 502 is turned on. The output end of the drive motor 502 drives the screw 503 to rotate. As the screw 503 rotates, the threaded sleeve 504 on its surface moves axially on the surface of the screw 503, thereby driving the closing plate 505 to move, thereby closing the bottom opening of the protective shell 401, thus protecting the surveying instrument 405 in a relatively closed space.

[0029] Example 2

[0030] Please see Figure 1-5 Based on Embodiment 1, a positioning frame 6 is fixedly connected to one side of the connecting frame 404 by screws. A movable rod 7 is connected through the inner cavity of the positioning frame 6. A support plate 8 is fixedly connected to the bottom of the movable rod 7, and a spring 9 is fixedly connected to the top of the support plate 8. The sealing assembly 5 includes a drive housing 501. The top of the drive housing 501 is fixedly connected to the bottom of the protective housing 401. A drive motor 502 is provided on the back of the drive housing 501. A screw 503 is fixedly connected to the output end of the drive motor 502. One end of the screw 503 penetrates into the inner cavity of the drive housing 501, and a threaded sleeve 504 is threadedly connected to the surface of the screw 503. A sealing plate 505 is fixedly connected to one side of the threaded sleeve 504 via the drive frame. The protective housing 401... A limiting frame is fixedly connected to the bottom of one side of the inner cavity of 01. A limiting roller is movably connected to the inner cavity of the limiting frame. One side of the limiting roller is in contact with the surface of the surveying instrument 405. A limiting frame is fixedly connected to the back of the mounting plate 407. A limiting plate is movably connected to the inner cavity of the limiting frame. One side of the limiting plate is fixedly connected to the inner wall of the protective shell 401. A guide rail is fixedly connected to one side of the bottom of the protective shell 401. A sliding piece is movably connected to the inner cavity of the guide rail. One side of the sliding piece is fixedly connected to the surface of the sealing plate 505. A buffer pad is fixedly connected to the bottom of the bracket 2. An elastic buffer material is provided in the inner cavity of the buffer pad. Adjusting motors are provided on both sides of the mounting frame 3. The output end of the adjusting motor is fixedly connected to the movable shaft on one side of the protective shell 401.

[0031] Specifically: As the surveying instrument 405 moves downwards, the positioning frame 6 moves and compresses the spring 9. The spring 9, under compression, begins to store elastic potential energy. After the pressure on the top of the surveying instrument 405 disappears, the elastic potential energy of the spring 9 is released, causing the positioning frame 6 and the surveying instrument 405 to return to the inner cavity of the protective shell 401. The drive motor 502 is then activated, and its output drives the screw 503 to rotate. As the screw 503 rotates, the threaded sleeve 504 on its surface moves axially on the surface of the screw 503, thereby moving the closing plate 505 and closing the bottom opening of the protective shell 401. The limiting rollers roll on the surface of the surveying instrument 405 as it moves up and down. The limiting action of the two limiting rollers maintains the stability of the surveying instrument 405 during its up and down movement. The limiting frame moves along with the mounting plate 407 on the surface of the limiting plate. The movement of the mounting plate 407 is improved by the limiting structure composed of the limiting frame and the mounting plate 407. The sliding piece moves with the closed plate 505 in the inner cavity of the guide rail. The limiting structure composed of the guide rail and the sliding piece limits one side of the closed plate 505, improving the movement stability of the closed plate 505. When the UAV body 1 lands, the buffer pad at the bottom of the bracket 2 contacts the ground. The impact force from the ground is applied to the buffer pad and the elastic buffer material in its inner cavity. The elasticity of the buffer pad and the elastic buffer material weakens the impact force from the ground, thus protecting the UAV and the mapping instrument 405 inside the protective shell 401. The adjustment motor is turned on, and the output end of the adjustment motor drives the protective shell 401 to rotate through the movable shaft, which in turn drives the mapping instrument 405 to rotate, adjusting the angle of the mapping instrument 405 and improving the efficiency of shooting and mapping.

[0032] The working principle of this utility model is as follows: The unmanned aerial vehicle (UAV) 1 is activated to fly to the area to be monitored and mapped. The electric push rod 406 is then activated. The telescopic shaft of the electric push rod 406 drives the push roller 409 to move. As it moves between the fixed plate 402 and the movable plate 403, the movable plate 403 is compressed. One of its movable sides then moves the mapping instrument 405 downwards until its imaging end is located at the bottom of the protective shell 401. The mapping instrument 405 is then opened for imaging and mapping. In case of sudden severe weather, the electric push rod 406 can be reopened. The telescopic shaft drives the push roller 409 to move back. At this time, the top of one side of the surveying instrument 405 moves upward and resets under the action of the spring 9. The positioning frame 6 drives the surveying instrument 405 to move upward into the inner cavity of the protective shell 401. Then, the drive motor 502 is turned on. The output end of the drive motor 502 drives the screw 503 to rotate. As the screw 503 rotates, the threaded sleeve 504 on its surface moves axially on the surface of the screw 503, thereby driving the closing plate 505 to move, thereby closing the bottom opening of the protective shell 401, thus protecting the surveying instrument 405 in a relatively closed space.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A multi-spectral surveying instrument protection mechanism for unmanned aerial vehicle-mounted land monitoring, comprising a UAV body (1), characterized in that: The unmanned aerial vehicle body (1) has brackets (2) fixedly connected to both sides of its bottom. The bottom of the unmanned aerial vehicle body (1) is fixedly connected to a mounting bracket (3). The inner cavity of the mounting bracket (3) is movably connected to a protective component (4) via a movable shaft. The bottom of the protective component (4) is provided with a sealing component (5). ​ The protective component (4) includes a protective shell (401). Both sides of the protective shell (401) are movably connected to the inner wall of the mounting frame (3) via a movable shaft. A fixed plate (402) is fixedly connected to the top of the inner cavity of the protective shell (401). A movable plate (403) is movably connected to one side of the fixed plate (402). A connecting frame (404) is movably connected to one side of the movable plate (403). A surveying instrument (405) is fixedly connected to the inner cavity of the connecting frame (404). An electric push rod (406) is fixedly connected to one side of the top of the inner cavity of the protective shell (401) via a fixed frame. A mounting plate (407) is fixedly connected to the telescopic shaft of the electric push rod (406). A push frame (408) is fixedly connected to one side of the mounting plate (407). A push roller (409) is provided in the inner cavity of the push frame (408).

2. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: A positioning frame (6) is fixedly connected to one side of the connecting frame (404) by screws. A movable rod (7) is connected through the inner cavity of the positioning frame (6). A support plate (8) is fixedly connected to the bottom of the movable rod (7). A spring (9) is fixedly connected to the top of the support plate (8).

3. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: The enclosed assembly (5) includes a drive housing (501), the top of which is fixedly connected to the bottom of the protective housing (401). A drive motor (502) is provided on the back of the drive housing (501). A screw (503) is fixedly connected to the output end of the drive motor (502). One end of the screw (503) penetrates into the inner cavity of the drive housing (501), and a threaded sleeve (504) is threadedly connected to the surface of the screw (503). A closing plate (505) is fixedly connected to one side of the threaded sleeve (504) through a drive frame.

4. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: A limiting frame is fixedly connected to the bottom of one side of the inner cavity of the protective shell (401), and a limiting roller is movably connected to the inner cavity of the limiting frame. One side of the limiting roller is in contact with the surface of the surveying instrument (405).

5. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: The back of the mounting plate (407) is fixedly connected to a limiting frame, the inner cavity of the limiting frame is movably connected to a limiting plate, and one side of the limiting plate is fixedly connected to the inner wall of the protective shell (401).

6. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: A guide rail is fixedly connected to one side of the bottom of the protective shell (401), and a sliding piece is movably connected to the inner cavity of the guide rail. One side of the sliding piece is fixedly connected to the surface of the sealing plate (505).

7. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: The bottom of the bracket (2) is fixedly connected to a buffer pad, and the inner cavity of the buffer pad is provided with elastic buffer material.

8. The protective mechanism for a multispectral mapping instrument for land monitoring carried by a UAV according to claim 1, characterized in that: Both sides of the mounting bracket (3) are equipped with adjustment motors, and the output end of the adjustment motors is fixedly connected to the movable shaft on one side of the protective shell (401).

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