A surveying drone with a rockfall barrier structure

Abstract

This utility model discloses a surveying drone with a rockfall protection structure, relating to the field of drone technology. It includes a main cabin for housing the drone's electronic components; a measurement host located at the top center of the main cabin for performing measurement functions and data acquisition; a protective frame located on the top outer side of the main cabin for protecting the measurement host; several extension arms located around the main cabin for welding to form the drone's frame; a propeller for providing flight propulsion; a rockfall protection assembly located on the outer side of one end of each extension arm for preventing damage to the propeller from falling rocks; a landing support located in the middle of each extension arm for supporting the drone's landing; and a control mechanism located inside the main cabin for controlling the drone's flight and signal transmission. This utility model effectively solves the problem of surveying drones being easily damaged by falling rocks when operating in areas prone to geological disasters.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a measurement UAV with a rockfall barrier structure. Background Technology

[0002] With the rapid development of infrastructure construction and the accelerated pace of urbanization, engineering projects such as mountain roads, railway tunnels, mining, and geological exploration are increasing, placing higher demands on environmental monitoring and measurement technologies in areas prone to geological disasters. In steep slopes, unstable rock masses, and areas with active geological hazards, traditional manual measurement methods are not only inefficient but also pose significant safety risks. Unmanned aerial vehicle (UAV) technology, as an emerging remote sensing measurement method, has been widely applied in geological surveying, environmental monitoring, and engineering investigation due to its advantages of high flexibility, wide coverage, and high data acquisition efficiency. Especially in dangerous areas prone to rockfalls, the use of UAVs provides safety assurance for workers while significantly improving data collection efficiency.

[0003] Currently, most surveying drones on the market utilize equipment such as lidar, high-precision cameras, and multispectral sensors to achieve accurate terrain measurement and data acquisition. They perform well in flat areas and relatively stable geological environments, acquiring high-precision terrain data, building 3D models, and providing reliable data support for engineering design and geological analysis. However, when these drones need to perform low-altitude surveying missions in areas prone to rockfalls, the lack of effective protective measures poses a serious challenge to equipment safety.

[0004] Existing surveying drones have the following shortcomings when facing areas prone to geological disasters such as rockfalls and landslides: Due to the lack of specialized rockfall protection structures, conventional drones are highly susceptible to damage from sudden rockfalls during low-altitude operations. Critical components such as propellers and the main measurement unit are particularly vulnerable to direct impact, resulting not only in equipment damage but also potential interruption of measurement missions and data loss. Furthermore, the protective design of traditional drones often neglects the protection of the propeller motor, which is precisely the most vulnerable and critical part of the drone. After a rockfall impact, propeller breakage and motor damage are common, severely impacting flight safety. These technical limitations significantly restrict the application of existing surveying drones in areas with complex geological conditions and high rockfall risk, making it difficult to meet practical engineering needs.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a measuring drone with a rockfall barrier structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A surveying drone with a rockfall barrier structure includes:

[0009] The main cabin houses the drone's electronic components;

[0010] The measurement host is located at the top center of the main cabin and is used to perform measurement functions and data acquisition.

[0011] The protective frame, located on the top outer side of the main cabin, is used to protect the measurement host.

[0012] Several extension arms are set around the main body cabin and are used to weld to the main body cabin to form the frame body of the UAV;

[0013] The propeller is located in the middle of one end of the extension arm and is used to provide flight power;

[0014] A baffle assembly, located on the outer side of one end of the extension arm, is used to prevent falling rocks from damaging the auger.

[0015] The landing support, located in the middle of the extension arm, is used to support the drone's landing.

[0016] The control mechanism, located inside the main cabin, is used to control the drone's flight and signal transmission.

[0017] Furthermore, in order to achieve a double-layer protection structure for the measurement host, the protective frame includes a first protective plate set at the top of the main body compartment. At least one pair of support arms are set around the first protective plate. Connecting protrusions are set at the top and bottom of one end of each support arm. A second protective plate is set at the top of the support arms, and the first and second protective plates have the same structure. A fixing part that cooperates with the top of the main body compartment is opened at the bottom of the other end of the support arm. A connecting shaft is set between each pair of support arms around the first protective plate.

[0018] Furthermore, in order to ensure the stable installation of the measuring equipment, the measuring host includes a battery compartment located at the top center of the main body compartment. A camera device is installed at one end of the battery compartment, and L-shaped connectors that are bolted to the top of the main body compartment are installed on both sides of the battery compartment and the camera device.

[0019] Furthermore, in order to achieve a high-strength connection of the drone frame, the extension arm includes a main arm body located at one end of the main cabin, with connecting plates symmetrically arranged on both sides of the main arm body, and several fixing protrusions that cooperate with the connecting plates on both sides of the main arm body; an arc-shaped card interface that cooperates with the partition component is opened in the middle of the connecting plate above the fixing protrusion, and a reinforcing shaft is arranged between the connecting plates on both sides of the main arm body.

[0020] Furthermore, in order to achieve a stable and buffered landing effect, the landing support includes support frames located on both sides of the middle of the extension arm, and a fixed shaft is provided between the support frames on both sides of the middle of the extension arm. A buffer pad is provided at the bottom of the support frame, and plug-in posts that cooperate with the support frame are provided on both sides of the bottom of the buffer pad.

[0021] Furthermore, to achieve all-around protection for the screw power unit, the baffle assembly includes a support ring located on the outer side of one end of the extension arm. The bottom end of the support ring is provided with several L-shaped connecting strips arranged in a circle, and one end of the L-shaped connecting strips is welded to the extension arm. The top of the support ring is provided with a circular guardrail. The top of the circular guardrail is provided with an annular frame, and the outer side of the annular frame is provided with several S-shaped welded columns arranged in a circle. The top of the annular frame is provided with a protective cover, and the outer side of the top of the protective cover is provided with several ventilation holes arranged in concentric circles to ensure airflow of the screw power unit. A circular baffle is provided in the middle of the protective cover.

[0022] Furthermore, in order to ensure reliable installation of the power system, the propeller power unit includes a cross-shaped base located at the middle of one end of the extension arm, a brushless motor fixedly mounted on the top of the cross-shaped base, and a propeller blade mounted on the top output end of the brushless motor.

[0023] The beneficial effects of this utility model are as follows:

[0024] 1. This utility model has a scientific and novel structure. By setting baffle components on the outside of the rotor power unit around the UAV and setting a double-layer protective frame on the top of the main body to protect the measurement host, a comprehensive rockfall protection structure is formed. This effectively solves the problem that the measurement UAV is easily damaged by falling rocks when operating in areas prone to geological disasters, thereby improving the safety of the UAV in performing measurement tasks under complex terrain conditions.

[0025] 2. By setting up a protective frame and an extension arm, the measurement host is protected in all directions and the frame structure of the UAV is reinforced. The first and second protective plates form a double-layer protective structure. The support arm and connecting shaft enhance the overall rigidity. The connecting plate on the extension arm is tightly connected to the main arm body through fixed protrusions and reinforcing shafts, forming a sturdy fuselage frame, which enables the UAV to maintain structural integrity and normal operation when subjected to external rockfall impacts.

[0026] 3. By setting up a barrier component and a propeller, the core power system of the UAV is effectively protected. The barrier component adopts a multi-layer protective structure of support ring, circular guardrail, ring frame and protective cover. Combined with the design of concentric circle ventilation holes, it can block the impact of falling rocks while ensuring the smooth flow of air generated by the propeller blades, forming a falling rock barrier solution that takes into account both protection effect and flight performance. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of a measuring drone with a rockfall barrier structure according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of a measuring drone with a rockfall barrier structure according to an embodiment of the present invention from another angle;

[0030] Figure 3 This is a schematic diagram of the middle protective frame of a measuring drone with a rockfall barrier structure according to an embodiment of the present utility model;

[0031] Figure 4 This is a partial structural diagram of the main cabin of a measuring drone with a rockfall barrier structure according to an embodiment of the present utility model;

[0032] Figure 5 This is a partial structural diagram of the extension arm of a measuring drone with a rockfall barrier structure according to an embodiment of the present utility model.

[0033] Figure 6 This is a schematic diagram of the propeller power unit in a measuring drone with a rockfall barrier structure according to an embodiment of the present invention;

[0034] Figure 7 This is a partial structural schematic diagram of a barrier component in a measuring drone with a rockfall barrier structure according to an embodiment of the present invention.

[0035] In the picture:

[0036] 1. Main cabin; 101. Cabin panel; 102. Arc-shaped plate; 103. Sealing plate; 2. Protective frame; 201. First protective plate; 202. Support arm; 203. Connecting protrusion; 204. Second protective plate; 205. Fixing part; 206. Connecting shaft; 3. Measuring host; 301. Battery compartment; 302. Camera device; 303. L-shaped connector; 4. Extension arm; 401. Main arm body; 402. Connecting plate; 403. Arc-shaped card interface; 404. Reinforcing shaft; 5. Baffle assembly; 5 01. Support ring; 502. L-shaped connecting strip; 503. Circular guardrail; 504. Ring frame; 505. S-shaped welded column; 506. Protective cover; 507. Circular cover; 6. Propeller; 601. Cross-shaped base; 602. Brushless motor; 603. Propeller blade; 7. Landing bracket; 701. Support frame; 702. Fixed shaft; 703. Buffer pad; 704. Insertion post; 8. Control mechanism; 801. Control box; 802. Flight controller; 803. Signal processing board. Detailed Implementation

[0037] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0038] According to an embodiment of the present invention, a measuring drone with a rockfall barrier structure is provided.

[0039] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the measuring drone with a rockfall barrier structure according to an embodiment of the present invention includes:

[0040] Main cabin 1, used to house the electronic components of the drone;

[0041] The measurement host 3 is located at the top center of the main body 1 and is used to perform measurement functions and data acquisition.

[0042] The protective frame 2 is located on the top outer side of the main body 1 and is used to protect the measuring host 3;

[0043] Several extension arms 4 are arranged around the main body compartment 1 for welding to the main body compartment 1 to form the frame body of the UAV;

[0044] The propeller 6 is located in the middle of one end of the extension arm 4 and is used to provide flight power;

[0045] The baffle assembly 5 is located on the outer side of one end of the extension arm 4 to prevent falling rocks from damaging the auger power unit 6.

[0046] Landing support 7, located in the middle of the extension arm 4, is used to support the drone's landing;

[0047] The control mechanism 8, located inside the main cabin 1, is used to control the flight of the UAV and transmit signals.

[0048] It should be noted that the main body 1 includes symmetrically arranged body plates 101. The body plates 101 are arranged in an arc-shaped cross shape. Several arc-shaped plates 102 and sealing plates 103 arranged in a circle are provided on the outer side of the two sets of body plates 101. They are welded together to form a sealing structure. A control mechanism 8 is provided between the two sets of body plates 101.

[0049] It should also be noted that the control mechanism 8 includes a control box 801 located inside the main cabin 1. A flight controller 802 is located at one end of the inner side of the control box 801, and a signal processing board 803 is located at the other end of the inner side of the control box 801. The flight controller 802, the signal processing board 803, the brushless motor 602, and the camera device 302 are all electrically connected to the battery compartment 301.

[0050] In specific applications, the battery compartment 301 of this utility model can be a DJI TB60 smart flight battery or a Panasonic NCR18650B lithium-ion battery pack; the flight controller 802 can be a Pixhawk 4 flight controller or a DJI A3 Pro flight controller; the signal processing board 803 can be a TI TMS320C6678 DSP signal processing board or an FPGA signal processing module XC7Z045; the brushless motor 602 can be a T-Motor U8 Lite KV150 brushless motor or a Sunnysky X4108S-720KV brushless external motor; and the camera device 302 can be a Sony FCB-EV7520 camera module or a FLIR Vue Pro R infrared thermal imaging camera. All these components are suitable for working in complex geological environments.

[0051] In one embodiment, for the aforementioned protective frame 2 and measuring host 3, the protective frame 2 includes a first protective plate 201 disposed at the top of the main body compartment 1. At least one pair of support arms 202 are disposed around the perimeter of the first protective plate 201. Connecting protrusions 203 are provided at the top and bottom of one end of each support arm 202. A second protective plate 204 is disposed at the top of the support arms 202, and the first protective plate 201 and the second protective plate 204 have the same structure. A fixing part 205, which cooperates with the top of the main body compartment 1, is provided at the bottom of the other end of the support arm 202. A connecting shaft 206 is provided between each pair of support arms 202 located around the first protective plate 201. The measuring host 3 includes a battery compartment 301 disposed in the middle of the top of the main body compartment 1. A camera device 302 is disposed at one end of the battery compartment 301. L-shaped connectors 303, which are bolted to the top of the main body compartment 1, are provided on both sides of the battery compartment 301 and the camera device 302, thereby achieving multiple layers of protection for the measuring host 3.

[0052] It should be noted that the camera device 302 includes a high-definition camera, a laser ranging module, and a multispectral imaging sensor. The high-definition camera uses a 12-megapixel CMOS sensor, equipped with optical image stabilization and a wide-angle lens, to acquire high-definition images of the terrain and landforms. The laser ranging module emits near-infrared lasers and receives reflected signals, enabling it to accurately measure the distance between the UAV and the target object, providing basic data for the construction of 3D point cloud data. The multispectral imaging sensor simultaneously captures images in the visible and near-infrared bands for geological structure analysis and vegetation cover assessment. This is existing technology and will not be elaborated upon here.

[0053] The working principle of the protective frame 2 and the measuring host 3 is as follows: When the UAV performs a measurement task in a geologically complex area, the first protective plate 201 and the second protective plate 204 form a double-layer protective structure. Through the support of the support arm 202, it can effectively resist the impact of falling rocks from above. The connecting protrusion 203 ensures the firm connection between the support arm 202 and the protective plate. The connecting shaft 206 enhances the structural strength between each pair of support arms 202. The fixing part 205 is welded to the top of the main body 1 to form a stable installation base. At the same time, the battery compartment 301 provides power support for the camera device 302. The L-shaped connector 303 fixes the measuring host 3 to the main body 1 by bolt connection, ensuring that the measuring equipment works normally under the protection of the protective frame 2.

[0054] In one embodiment, for the aforementioned extension arm 4 and landing support 7, the extension arm 4 includes a main arm body 401 disposed at one end of the main body 1. Connecting plates 402 are symmetrically arranged on both sides of the main arm body 401, and several fixing protrusions that cooperate with the connecting plates 402 are provided on both sides of the main arm body 401. An arc-shaped locking interface 403 that cooperates with the partition assembly 5 is opened in the middle of the connecting plate 402 above the fixing protrusions. A reinforcing shaft 404 is disposed between the connecting plates 402 on both sides of the main arm body 401. The landing support 7 includes support frames 701 disposed on both sides of the middle portion of the extension arm 4, and a fixing shaft 702 is disposed between the support frames 701 on both sides of the middle portion of the extension arm 4. A buffer pad 703 is disposed at the bottom of the support frame 701, and insertion posts 704 that cooperate with the support frame 701 are provided on both sides of the bottom of the buffer pad 703, thereby achieving stable landing support.

[0055] The working principle of the extension arm 4 and the landing bracket 7 is as follows: the main arm body 401, as the main load-bearing body, is welded to the main body cabin 1 to form the basic frame of the UAV. The connecting plate 402 is welded to the main arm body 401 through the fixing protrusion. The arc-shaped card interface 403 provides a welding port for the support ring 501 in the partition assembly 5. The reinforcing shaft 404 connects the connecting plates 402 on both sides to enhance the overall rigidity of the extension arm 4. When the UAV lands, the support frame 701 bears the weight of the fuselage. The fixing shaft 702 connects the support frames 701 on both sides into an integrated structure. The buffer pad 703 contacts the ground and absorbs the landing impact. The bottom of the support frame 701 is inserted into the plug post 704 and welded to fix it, so as to realize the fixed connection between the buffer pad 703 and the support frame 701. Thus, the landing bracket 7 ensures that the UAV can land safely under various ground conditions.

[0056] In one embodiment, for the aforementioned baffle assembly 5 and spiral power unit 6, the baffle assembly 5 includes a support ring 501 disposed on the outer side of one end of the extension arm 4. The bottom end of the support ring 501 is provided with a plurality of L-shaped connecting strips 502 arranged in a circle, and one end of the L-shaped connecting strips 502 is welded to the extension arm 4. The top end of the support ring 501 is provided with a circular guardrail 503. The top of the circular guardrail 503 is provided with an annular frame 504, and the outer side of the annular frame 504 is provided with a plurality of S-shaped welded columns 505 arranged in a circle. The top end of the annular frame 504 is provided with a protective cover 506, and the outer side of the top end of the protective cover 506 is provided with a plurality of ventilation holes arranged in concentric circles to ensure airflow of the spiral power unit 6. The middle part of the protective cover 506 is provided with a circular baffle 507. The propeller 6 includes a cross-shaped base 601 located at the middle of one end of the extension arm 4. A brushless motor 602 is fixedly mounted on the top of the cross-shaped base 601. A propeller blade 603 is mounted on the top output end of the brushless motor 602, thereby achieving effective protection of the key power components.

[0057] The working principle of the baffle assembly 5 and the propeller 6 is as follows: During the low-altitude measurement mission of the UAV in the geological disaster area, the support ring 501 is firmly welded to the extension arm 4 through the L-shaped connecting strip 502 to form a basic protective structure. The circular protective railing 503 is welded to the top of the support ring 501 to form a lateral protective barrier. The annular frame 504 is welded to the circular protective railing 503 through the S-shaped welding column 505 to form an upper support structure. The protective cover 506 is fixedly set on the top of the annular frame 504 to form a top protective layer. The concentrically arranged ventilation holes ensure that the airflow generated by the propeller blade 603 can flow smoothly without affecting the airflow. For flight performance, the circular cover 507, located in the center of the protective cover 506, directly blocks the impact of falling rocks from directly above. The cross-shaped base 601 is tightly connected to the bottom of the brushless motor 602 by bolts and fixing slots, ensuring that the brushless motor 602 will not loosen or shift during high-speed operation. The brushless motor 602 drives the propeller blades 603 to rotate through the output end, generating lift and thrust. The entire baffle assembly 5 forms a cage-like protective structure, which effectively prevents damage to the propeller power unit 6 from falling rocks from all directions without significantly increasing aerodynamic drag, ensuring the continuous and stable operation of the UAV in harsh geological environments.

[0058] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0059] In practical applications, this measuring drone with a rockfall barrier structure is mainly used for slope monitoring projects on mountain roads. Taking a landslide monitoring project on a provincial highway as an example, the staff first assembled the drone in a safe area, connected the control mechanism 8 in the main cabin 1 to the measuring host 3, checked whether each barrier component 5 was intact and fixed to the outside of the extension arm 4, and confirmed that all propellers 6 could start normally. Then, the flight path was set through the flight controller 802 in the control box 801, and the drone was deployed to a position about 50 meters below the landslide. After takeoff, the drone gradually ascended along the preset route to approach the unstable mountain, hovering about 15 meters away from the slope. High-definition image data was collected through the camera device 302, and the drone was simultaneously remotely controlled to move along the contour of the mountain to collect point cloud data. During the measurement process, due to the presence of loose rocks on the mountain, a piece of gravel weighing about 200 grams suddenly fell and hit one side barrier component 5 of the drone. At this time, the protective cover 506 and the circular guardrail 503 successfully intercepted the falling rock, preventing it from directly impacting the propeller blades 603, allowing the drone to maintain a stable flight state and continue to complete the measurement task. When a large area of ​​loose rocks was encountered during the measurement on the other side, the first protective plate 201 and the second protective plate 204 of the protective frame 2 provided double protection for the measurement host 3, preventing damage to the camera device 302. After the mission was completed, the drone returned to the starting point and landed smoothly via the buffer pad 703 of the landing support 7. The staff then transmitted the collected data to the computer for analysis via the signal processing board 803, providing reliable data support for the mountain stability assessment and protection scheme design. The entire measurement process was safe and efficient, while completely avoiding the safety risks of staff working in dangerous areas.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surveying drone with a rockfall barrier structure, characterized in that, include: The main cabin (1) is used to house the electronic components of the UAV; The measurement host (3) is located at the top center of the main body (1) and is used to perform measurement functions and data acquisition. The protective frame (2) is located on the top outer side of the main body (1) and is used to protect the measuring host (3). Several extension arms (4) are set around the main body (1) for welding to the main body (1) to form the frame body of the UAV; The propeller (6) is located in the middle of one end of the extension arm (4) and is used to provide flight power; The baffle assembly (5) is located on the outside of one end of the extension arm (4) to prevent falling rocks from damaging the spiral power unit (6). Landing support (7), located in the middle of the extension arm (4), is used to support the landing of the UAV; The control mechanism (8) is located inside the main cabin (1) and is used to control the flight of the UAV and transmit signals.

2. The measurement drone with rockfall barrier structure according to claim 1, characterized in that, The protective frame (2) includes a first protective plate (201) set at the top of the main body (1). At least one pair of support arms (202) are provided around the first protective plate (201). Connecting protrusions (203) are provided at the top and bottom of one end of the support arm (202). The top of the support arm (202) is provided with a second protective plate (204), and the first protective plate (201) and the second protective plate (204) have the same structure.

3. The survey drone with rockfall barrier structure according to claim 2, characterized in that, The bottom of the other end of the support arm (202) is provided with a fixing part (205) that cooperates with the top of the main body (1), and a connecting shaft (206) is provided between each pair of support arms (202) around the first protective plate (201).

4. The surveying drone with rockfall barrier structure according to claim 1, characterized in that, The measuring host (3) includes a battery compartment (301) located at the top center of the main body compartment (1). A camera device (302) is provided at one end of the battery compartment (301). Both sides of the battery compartment (301) and the camera device (302) are provided with L-shaped connectors (303) that are bolted to the top of the main body compartment (1).

5. A surveying drone with a rockfall barrier structure according to claim 1, characterized in that, The extension arm (4) includes a main arm body (401) disposed at one end of the main body (1), and connecting plates (402) are symmetrically disposed on both sides of the main arm body (401), and a number of fixing protrusions that cooperate with the connecting plates (402) are disposed on both sides of the main arm body (401). The middle part of the connecting plate (402) is provided with an arc-shaped card interface (403) that cooperates with the partition assembly (5) above the fixed protrusion, and a reinforcing shaft (404) is provided between the connecting plates (402) on both sides of the main arm body (401).

6. A surveying drone with a rockfall barrier structure according to claim 1, characterized in that, The landing support (7) includes support frames (701) disposed on both sides of the middle part of the extension arm (4), and a fixed shaft (702) is disposed between the support frames (701) on both sides of the middle part of the extension arm (4). A buffer pad (703) is disposed at the bottom of the support frame (701), and plug-in posts (704) that cooperate with the support frame (701) are disposed on both sides of the bottom of the buffer pad (703).

7. A surveying drone with a rockfall barrier structure according to claim 1, characterized in that, The partition assembly (5) includes a support ring (501) disposed on the outer side of one end of the extension arm (4). The bottom end of the support ring (501) is provided with a plurality of L-shaped connecting strips (502) arranged in a circle, and one end of the L-shaped connecting strips (502) is welded to the extension arm (4). The top end of the support ring (501) is provided with a circular guardrail (503).

8. A surveying drone with a rockfall barrier structure according to claim 7, characterized in that, The top of the circular guardrail (503) is provided with an annular frame (504), and a number of S-shaped welded columns (505) arranged in a circle are provided on the outside of the annular frame (504). The top of the annular frame (504) is provided with a protective cover (506), and the outer side of the top of the protective cover (506) is provided with several ventilation holes arranged in concentric circles to ensure the airflow of the spiral power unit (6); a circular cover (507) is provided in the middle of the protective cover (506).

9. A surveying drone with a rockfall barrier structure according to claim 1, characterized in that, The spiral power unit (6) includes a cross-shaped base (601) located at the middle of one end of the extension arm (4), a brushless motor (602) is fixedly installed at the top of the cross-shaped base (601), and a propeller blade (603) is installed at the top output end of the brushless motor (602).

Images