High-safety surveying and mapping unmanned aerial vehicle

CN224752780UActive Publication Date: 2026-09-15CHINA JK INST OF ENG INVESTIGATION & DESIGN
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Patent Information

Application Number
CN202521370431.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2026-09-15
Estimated Expiration
2035-07-01

AI Technical Summary

Technical Problem

而传统的测绘无人机在使用时,为避免低空测绘飞行时,螺旋桨伤人、卷入树木树叶,多数采用的刚性防护结构,虽能抵御碰撞,但重量过大、空气阻力高,导致续航里程缩短,且刚性笼架或柔性网可能遮挡激光雷达、视觉摄像头的探测范围,导致三维建模数据出现盲区,进一步降低了测绘无人机的实用性

Benefits of technology

1.本实用新型,通过保护装置的设置,通过电推杆、弹簧、滑块、缓冲垫和防护圈的配合使用,防护圈围绕螺旋桨构建防护屏障,可在无人机起降及低空飞行时,有效隔绝高速旋转的螺旋桨与地面人员,同时电推杆带动滑块和缓冲垫向上移动,避免了对测绘仪本体的阻挡,导致因遮挡导致的地形数据盲区,同时弹簧的设置,减少了无人机着落冲击对设备的损坏,进一步提高了测绘无人机的实用性。

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Abstract

The utility model provides a kind of high security surveying and mapping unmanned plane, it is related to unmanned plane technical field, including machine body;Two mounting frames are respectively fixedly installed in the both sides of machine body, four protective devices are respectively arranged in the bottom end four corners of machine body;Rotating device is set in the bottom of machine body;Range finder is fixedly installed in the bottom side of machine body.The utility model is through the setting of protective device, through the cooperation of electric push rod, spring, slider, buffer pad and protective ring, protective ring constructs protective barrier around propeller, can effectively isolate high-speed rotating propeller and ground personnel when unmanned plane takes off and lands and low-altitude flight, slider and buffer pad are driven upward by electric push rod, avoid the obstruction to surveying and mapping instrument body, lead to the terrain data blind area due to the obstruction, the setting of spring reduces the damage of unmanned plane landing impact to equipment, further improves the practicality of surveying and mapping unmanned plane.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a high-security surveying UAV. Background Technology

[0002] With the booming development of the geographic information industry, drones have become a core tool in the surveying and mapping field due to their advantages such as maneuverability, low cost and high efficiency. From topographic mapping and engineering construction monitoring to disaster emergency geographic information collection, drones can quickly acquire high-precision three-dimensional data, significantly improving surveying and mapping efficiency and data coverage. Especially in areas with complex terrain that are difficult for humans to reach, drones play an irreplaceable role, promoting the advancement of surveying and mapping technology towards intelligence and unmanned operation. Surveying missions often require drones to fly in densely populated areas, urban environments with tall buildings, or mountainous terrain with rugged terrain. Safety protection systems can effectively avoid collision risks and ensure the safety of ground personnel and equipment. Reliable protective designs can reduce the probability of drone failure under complex conditions such as severe weather and electromagnetic interference, ensuring the integrity and accuracy of surveying data acquisition. Traditional surveying drones, in order to avoid propeller injuries or getting caught in tree leaves during low-altitude surveying flights, mostly adopt rigid protective structures. Although these structures can withstand collisions, they are too heavy and have high air resistance, resulting in a shortened flight range. Furthermore, rigid cages or flexible nets may block the detection range of lidar and visual cameras, causing blind spots in 3D modeling data, which further reduces the practicality of surveying drones. Utility Model Content

[0003] This invention provides a highly secure surveying drone that solves the problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: An embodiment of this utility model provides a high-security mapping drone, comprising: Organism; Two mounting brackets are symmetrically fixedly installed on both sides of the machine body, and servo motors are fixedly installed at both ends of one side of each of the two mounting brackets, and propellers are fixedly connected to the output ends of the servo motors. Four protective devices are located at the four corners of the bottom of the machine body; The rotating device is located at the bottom of the machine body; The rangefinder is fixedly installed on one side of the bottom of the machine body.

[0005] The above technical solution reduces the impact of the mounting frame on airflow during drone flight by inverting the servo motor and propeller, while the protective device further improves the safety of using the surveying drone.

[0006] Furthermore, the protective device includes an electric actuator fixedly installed at the bottom of the machine body. The output end of the electric actuator is fixedly connected to a fixed housing. A slider is slidably connected inside the fixed housing, and a buffer pad is fixedly connected to one end of the slider. A spring is fixedly connected to the top of the inside of the fixed housing, and the other end of the spring is fixedly connected to one end of the slider.

[0007] The above technical solution connects the electric actuator to the fixed housing. Activating the electric actuator moves the fixed housing, slider, and buffer pad upwards, preventing obstruction of the surveying instrument body from performing surveying and detection. At the same time, the addition of springs and buffer pads further reduces the impact of landing on the equipment.

[0008] Furthermore, the protective device includes protective rings fixedly installed at both ends of one side of the mounting frame. The inner dimensions of the protective rings are adapted to the dimensions of the propeller, and the material of the protective rings is rubber.

[0009] The above technical solution, with its protective ring, can prevent the propeller from scratching workers on the ground when it rotates.

[0010] Furthermore, the rotating device includes a first asynchronous motor fixedly installed at the middle of the bottom of the machine body. The output end of the first asynchronous motor is fixedly connected to a fixed frame. A second asynchronous motor is fixedly connected to one side of the fixed frame. The output end of the second asynchronous motor is fixedly connected to a component housing. The component housing is rotatably installed inside the fixed frame, and the surveying instrument body is fixedly installed inside the component housing.

[0011] Through the above technical solution, the setting of the first asynchronous motor and the second asynchronous motor enables the drone to hover, driving the surveying instrument body to perform all-round inspection, reducing the difficulty of operating the surveying drone, and reducing the image turbulence caused by rotating the drone.

[0012] Furthermore, a surveying groove is provided on one side of the component housing, and a light-transmitting glass is fixedly installed inside the surveying groove.

[0013] The above technical solution, with its transparent glass, can prevent airborne dust from entering the surveying instrument and causing damage to the instrument and affecting the surveying results.

[0014] Furthermore, a miniature electric actuator is fixedly installed on one top side of the component housing, and a scraper is fixedly connected to the output end of the miniature electric actuator. One side of the scraper is made of silicone material, and one side of the scraper is in contact with the outer side of the light-transmitting glass.

[0015] The above technical solution involves fixing the miniature electric push rod to the scraper, then activating the miniature electric push rod to move the scraper, thereby cleaning the transparent glass.

[0016] The above-described solution of this utility model has at least the following beneficial effects: 1. This utility model, through the setting of a protective device, uses the cooperation of an electric push rod, a spring, a slider, a buffer pad, and a protective ring. The protective ring surrounds the propeller to form a protective barrier, which can effectively isolate the high-speed rotating propeller from ground personnel during the take-off, landing, and low-altitude flight of the UAV. At the same time, the electric push rod drives the slider and buffer pad to move upward, avoiding obstruction of the surveying instrument body and preventing blind spots in terrain data caused by obstruction. Meanwhile, the setting of the spring reduces the damage to the equipment caused by the impact of the UAV landing, further improving the practicality of the surveying UAV.

[0017] 2. This utility model, through the setting of a rotating device, and the coordinated use of a first asynchronous motor, a second asynchronous motor, a protective device, a miniature electric actuator, a scraper, and the surveying instrument body, enables the drone to hover, driving the surveying instrument body to perform all-round inspection. This reduces the operational difficulty of the surveying drone and minimizes image turbulence caused by drone rotation, resulting in clearer and more accurate images and data. Simultaneously, activating the miniature electric actuator to move the scraper can clean the light-transmitting glass, preventing dust from affecting the surveying instrument body's mapping, further improving the usability of the surveying drone. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating device structure of this utility model; Figure 3 This is a schematic diagram of the rotating device structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the component box of this utility model; Figure 5 This is a schematic diagram of the protective device structure of this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Main body; 2. Mounting bracket; 3. Servo motor; 4. Propeller; 5. Protective device; 51. Electric actuator; 52. Fixed housing; 53. Spring; 54. Slider; 55. Buffer pad; 56. Protective ring; 6. Rotating device; 61. First asynchronous motor; 62. Fixed bracket; 63. Second asynchronous motor; 64. Component housing; 65. Transparent glass; 66. Miniature electric actuator; 67. Scraper; 68. Surveying instrument body; 7. Rangefinder. Detailed Implementation

[0020] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0021] like Figures 1 to 5 As shown, an embodiment of this utility model provides a high-safety surveying drone, comprising: a body 1; mounting brackets 2 are symmetrically fixedly installed on both sides of the body 1, and servo motors 3 are fixedly installed at both ends of one side of each mounting bracket 2, and propellers 4 are fixedly connected to the output ends of the servo motors 3; protective devices 5 are respectively provided at the four corners of the bottom of the body 1; a rotating device 6 is provided at the bottom of the body 1; a rangefinder 7 is fixedly installed on one side of the bottom of the body 1; the servo motors 3 and propellers 4 are connected by a fixed connection; when the servo motors 3 are started, the propellers 4 rotate under the action of the servo motors 3, thereby driving the drone to rise and take off.

[0022] like Figures 2 to 4 As shown, the protection device 5 includes an electric push rod 51 fixedly installed at the bottom of the body 1. The output end of the electric push rod 51 is fixedly connected to a fixed housing 52. A slider 54 is slidably connected inside the fixed housing 52, and a buffer pad 55 is fixedly connected to one end of the slider 54. A spring 53 is fixedly connected to the top of the inside of the fixed housing 52, and the other end of the spring 53 is fixedly connected to one end of the slider 54. The protection device 5 includes protective rings 56 fixedly installed at both ends of one side of the mounting frame 2. The inner dimensions of the protective rings 56 are adapted to the dimensions of the propeller 4, and the material of the protective rings 56 is rubber. The electric push rod 51 and the fixed housing 52 are connected by a fixed connection. When the electric push rod 51 is started, the fixed housing 52 can move and rise under the action of the electric push rod 51 to avoid obstructing the surveying instrument body 68 from performing detection.

[0023] like Figures 3 to 5 As shown, the rotating device 6 includes a first asynchronous motor 61 fixedly installed at the middle of the bottom of the body 1. The output end of the first asynchronous motor 61 is fixedly connected to a fixed frame 62. A second asynchronous motor 63 is fixedly connected to one side of the fixed frame 62. The output end of the second asynchronous motor 63 is fixedly connected to a component housing 64. The component housing 64 is rotatably installed inside the fixed frame 62, and a surveying instrument body 68 is fixedly installed inside the component housing 64. A surveying slot is opened on one side of the component housing 64, and a light-transmitting glass 65 is fixedly installed inside the surveying slot. The second asynchronous motor 63 is connected to the component housing 64 by a fixed connection. When the second asynchronous motor 63 is started, the slider 54 can rotate under the action of the spring 53, thereby driving the surveying instrument body 68 to rotate for all-round detection.

[0024] like Figures 3 to 5 As shown, a miniature electric actuator 66 is fixedly installed on the top of one side of the component housing 64. A scraper 67 is fixedly connected to the output end of the miniature electric actuator 66. One side of the scraper 67 is made of silicone material, and one side of the scraper 67 is attached to the outer side of the light-transmitting glass 65. The miniature electric actuator 66 and the scraper 67 are connected by a fixed connection. When the miniature electric actuator 66 is activated, the scraper 67 can move up and down under the action of the miniature electric actuator 66, thereby cleaning the light-transmitting glass 65 and preventing dust from adhering to the measuring instrument body 68, which would affect the accuracy of the detection.

[0025] In this embodiment of the utility model (working principle), during use, the operator starts the servo motor 3 via an external remote control to drive the propeller 4 to rotate, causing the drone to rise smoothly. Simultaneously, the protective ring 56 effectively prevents the propeller 4 from scratching the operator during rotation. Furthermore, the outward-facing reverse mounting design of the servo motor 3 and propeller 4 reduces the impact of the mounting bracket 2 and protective ring 56 on the drone's airflow. When the rangefinder 7 detects that the drone has risen to a certain height above the ground, it automatically controls the electric actuator 51 to retract, preventing it from obstructing the work of the mapping instrument body 68. Once the drone reaches the designated location, the user can operate the first asynchronous motor 61 and the second asynchronous motor 63 to rotate the mapping instrument body 68 up, down, left, and right, completing the mapping of the external environment. This design avoids the traditional method of mapping by controlling the entire drone to rotate, reducing the operational difficulty of the mapping drone and effectively reducing the problem of mapping surface turbulence caused by drone rotation, resulting in clearer and more accurate images and data. In addition, the light-transmitting glass 65... This system prevents dust from adhering and damaging the surveying instrument body 68 during flight. When dust affects the surveying accuracy, the miniature electric actuator 66 will drive the scraper 67 to move up and down. The miniature electric actuator 66 can be activated to drive the scraper 67 to move up and down, cleaning the light-transmitting glass 65 in time. After the surveying is completed, when the drone is descending, once the rangefinder 7 detects that the distance from the ground is less than the set distance, it controls the electric actuator 51 to extend and simultaneously instructs the servo motor 3 to reduce its speed. This avoids scratching the staff during descent and also prevents the drone from descending too fast. When the drone lands, its buffer pad 55 will contact the ground first, causing the slider 54 to retract inward under the action of the spring 53, effectively buffering the impact and reducing the risk of equipment damage.

[0026] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A high-security surveying drone, characterized in that, include: Body (1); Two mounting brackets (2) are symmetrically fixedly installed on both sides of the body (1), and servo motors (3) are fixedly installed at both ends of one side of the two mounting brackets (2), and propellers (4) are fixedly connected to the output end of the servo motors (3). Four protective devices (5) are respectively installed at the four corners of the bottom of the body (1); A rotating device (6) is located at the bottom of the body (1); The rangefinder (7) is fixedly installed on one side of the bottom of the body (1).

2. The high-security mapping UAV according to claim 1, characterized in that, The protective device (5) includes an electric push rod (51) fixedly installed on the bottom of the body (1). The output end of the electric push rod (51) is fixedly connected to a fixed shell (52). A slider (54) is slidably connected inside the fixed shell (52). A buffer pad (55) is fixedly connected to one end of the slider (54). A spring (53) is fixedly connected to the top of the inside of the fixed shell (52). The other end of the spring (53) is fixedly connected to one end of the slider (54).

3. The high-security mapping UAV according to claim 2, characterized in that, The protective device (5) includes protective rings (56) fixedly installed on both ends of one side of the mounting bracket (2). The inner dimensions of the protective rings (56) are adapted to the dimensions of the propeller (4), and the material of the protective rings (56) is rubber.

4. The high-security mapping UAV according to claim 1, characterized in that, The rotating device (6) includes a first asynchronous motor (61) fixedly installed at the middle of the bottom of the body (1). The output end of the first asynchronous motor (61) is fixedly connected to a fixed frame (62). A second asynchronous motor (63) is fixedly connected to one side of the fixed frame (62). The output end of the second asynchronous motor (63) is fixedly connected to a component housing (64). The component housing (64) is rotatably installed inside the fixed frame (62), and the surveying instrument body (68) is fixedly installed inside the component housing (64).

5. A high-security mapping UAV according to claim 4, characterized in that, The component housing (64) has a surveying groove on one side, and a light-transmitting glass (65) is fixedly installed inside the surveying groove.

6. A high-security mapping drone according to claim 4, characterized in that, A miniature electric actuator (66) is fixedly installed on one side of the component housing (64). A scraper (67) is fixedly connected to the output end of the miniature electric actuator (66). One side of the scraper (67) is made of silicone material, and one side of the scraper (67) is in contact with the outer side of the light-transmitting glass (65).