Camera fixing device for low-altitude photogrammetry of unmanned aerial vehicle

Abstract

The utility model discloses a camera fixing device for low altitude photogrammetry of an unmanned aerial vehicle, which belongs to the technical field of unmanned aerial vehicles and comprises an unmanned aerial vehicle body, a fixing mechanism is fixedly connected to the inner surface of the unmanned aerial vehicle body and comprises a connecting rod, a connecting assembly is fixedly connected to the front end of the connecting rod, and a fixing assembly is clamped in the connecting assembly. According to the unmanned aerial vehicle low-altitude photogrammetry device, through the matched design of the connecting assembly and the fixing assembly, rapid disassembly and assembly of a camera are achieved, tools are not needed, the preparation time before operation and the equipment replacement time are greatly shortened, and the working efficiency of unmanned aerial vehicle low-altitude photogrammetry is remarkably improved; through the lens assembly, the camera can be flexibly adjusted at multiple angles and in all directions in a three-dimensional space, comprehensive and accurate image information is captured by adjusting the angle and the position of the camera, the applicability of the device in different photogrammetry tasks is greatly expanded, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a camera mounting device for low-altitude photogrammetry using UAVs. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aircraft controlled by radio remote control equipment and onboard program control devices, or operated autonomously by an onboard computer, either completely or intermittently. Compared with manned aircraft, UAVs are often more suitable for tasks that are too "dull, dirty, or dangerous." Their applications in fields such as aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, and film and television shooting have greatly expanded the uses of UAVs.

[0003] Chinese Patent Publication No. CN222793832U discloses a camera mounting method for low-altitude photogrammetry using unmanned aerial vehicles (UAVs). This solution, through its reinforced mechanism, facilitates the disassembly and assembly of the camera body during prolonged use, eliminating the need for external tools and improving ease of assembly and disassembly, thus reducing operational costs. The insertion mechanism, with the cooperation of a sliding groove and a protrusion, further enhances the stability of the camera body during use, ensuring stability during shooting and improving the accuracy of measurement data. However, in practical implementation, the following drawbacks exist: when facing complex terrain, diverse targets, and different shooting tasks, the fixed camera cannot adjust its shooting angle and position, making it difficult to capture comprehensive and accurate image information. This significantly reduces its practicality in photogrammetry and fails to fully meet diverse operational needs.

[0004] Therefore, a camera fixing device for low-altitude photogrammetry using UAVs is proposed to address the above problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a camera fixing device for low-altitude photography and measurement of UAVs, which can be quickly assembled and disassembled and easily adjusted.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A camera mounting device for low-altitude photogrammetry using a drone includes a drone body. A mounting mechanism is fixedly connected to the inner surface of the drone body. The mounting mechanism includes a connecting rod, a connecting component is fixedly connected to the front end of the connecting rod, a mounting component is snapped into the connecting component, and a lens assembly is installed inside the mounting component.

[0010] Furthermore, the connecting component includes a connecting block with two slots at its front end and two limiting slots at its upper end. Two positioning blocks are fixedly connected to both the upper and lower ends of the connecting block. Sliding rods are slidably connected to the inner surfaces of the four positioning blocks. A pressing block is fixedly connected to the end of the four sliding rods that are close to each other, and a pressing block is fixedly connected to the end of the four sliding rods that are far from each other. By pressing the pressing block, the sliding rods and pressing blocks are moved, which can realize the quick disassembly of the fixing component. The operation is simple and fast.

[0011] Furthermore, the fixing component includes a connecting plate, with two connecting strips fixedly connected to the rear end of the connecting plate. An inner tube is fixedly connected to the rear end of each connecting strip, and a positioning plate is fixedly connected to the inner surface of each inner tube. Four springs are fixedly connected to the upper and lower ends of each positioning plate. A locking tongue is fixedly connected to the upper ends of the four upper springs, and a locking tongue is fixedly connected to the lower ends of the four lower springs. The outer surfaces of both locking tongues are slidably connected to the inner surface of the inner tube. This combination of springs and locking tongues ensures that after the connecting strip is inserted into the slot, the locking tongue automatically pops out under the spring force and engages in the limiting slot, ensuring a tight connection between the fixing component and the connecting component and preventing the camera from loosening during flight.

[0012] Furthermore, the lens assembly includes a motor 1, the output end of which is fixedly connected to a connecting frame 1 via a coupling, a motor 2 is fixedly connected to the upper end of the connecting frame 1, the output end of which is fixedly connected to the connecting frame 2 via a coupling, a motor 3 is fixedly connected to the right end of the connecting frame 2, and the output end of which is fixedly connected to the connecting frame 3 via a coupling. The inner surface of the connecting frame 3 is fixedly connected to the camera body via screws. The three motors work together to enable the camera body to achieve flexible adjustment in three-dimensional space at multiple angles and in all directions, meeting the needs of different photogrammetry tasks.

[0013] Furthermore, the outer surface of the motor is fixedly connected to the inner surface of the connecting plate.

[0014] Furthermore, the rear end of the connecting block is fixedly connected to the front end of the connecting rod, and the outer surface of the connecting rod is fixedly connected to the inner surface of the UAV body.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution achieves quick assembly and disassembly of the camera through the cooperative design of the connecting component and the fixing component. During installation, simply align the connecting strip of the fixing component with the slot of the connecting block and insert it. The spring pushes the locking tongue to automatically engage with the limiting slot, thus completing a stable connection. During disassembly, simply press the pressing block to move the sliding rod and the squeezing block, squeezing the locking tongue to retract it into the inner tube, and the fixing component and camera can be easily removed without the need for tools. This greatly shortens the preparation time and equipment replacement time before the operation, and significantly improves the working efficiency of UAV low-altitude photogrammetry.

[0018] (2) Through the lens assembly, this solution can achieve flexible adjustment of the camera in three-dimensional space from multiple angles and in all directions. Whether shooting undulating mountains, towering buildings, or tracking moving targets, it can capture comprehensive and accurate image information by adjusting the camera angle and position, which greatly expands the applicability of the device in different photogrammetry tasks and improves the practicality of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fixing mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection component of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing component of this utility model;

[0023] Figure 5 This is a schematic diagram of the lens assembly of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. UAV body; 2. Fixing mechanism; 21. Connecting rod; 22. Connecting component; 221. Connecting block; 222. Slot; 223. Limiting slot; 224. Positioning block; 225. Sliding rod; 226. Pressing block; 227. Extrusion block; 23. Fixing component; 231. Connecting plate; 232. Connecting strip; 233. Inward tube; 234. Positioning plate; 235. Spring; 236. Locking tongue; 24. Lens assembly; 241. Motor 1; 242. Connecting frame 1; 243. Motor 2; 244. Connecting frame 2; 245. Motor 3; 246. Connecting frame 3; 247. Camera body. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Please see Figure 1-5 A camera mounting device for low-altitude photogrammetry of a drone includes a drone body 1. A fixing mechanism 2 is fixedly connected to the inner surface of the drone body 1. The fixing mechanism 2 includes a connecting rod 21. The outer surface of the connecting rod 21 is fixedly connected to the inner surface of the drone body 1. A connecting component 22 is fixedly connected to the front end of the connecting rod 21. A fixing component 23 is snapped into the connecting component 22. A lens component 24 is installed inside the fixing component 23.

[0031] This solution uses a snap-fit ​​method between the connecting component 22 and the fixing component 23 to quickly connect or disconnect the fixing component 23 and the lens component 24 from the UAV body 1 without the need for tools, which greatly shortens the preparation time and equipment replacement time before photogrammetry operations and significantly improves the working efficiency of UAV low-altitude photogrammetry.

[0032] Please see Figure 2-5The connecting component 22 includes a connecting block 221. The rear end of the connecting block 221 is fixedly connected to the front end of the connecting rod 21. Two slots 222 are provided at the front end of the connecting block 221. Two limiting slots 223 are provided at the upper end of the connecting block 221. Two positioning blocks 224 are fixedly connected to both the upper and lower ends of the connecting block 221. Sliding rods 225 are slidably connected to the inner surfaces of the four positioning blocks 224. A pressing block 227 is fixedly connected to the end of the four sliding rods 225 that is close to each other. A pressing block 226 is fixedly connected to the end of the four sliding rods 225 that is far away from each other.

[0033] The fixing component 23 includes a connecting plate 231. Two connecting strips 232 are fixedly connected to the rear end of the connecting plate 231. An inner tube 233 is fixedly connected to the rear end of each connecting strip 232. A positioning plate 234 is fixedly connected to the inner surface of each inner tube 233. Four springs 235 are fixedly connected to the upper and lower ends of the positioning plate 234. A locking tongue 236 is fixedly connected to the upper end of the four springs 235 on the upper side. A locking tongue 236 is fixedly connected to the lower end of the four springs 235 on the lower side. The outer surfaces of the two locking tongues 236 are slidably connected to the inner surface of the inner tube 233.

[0034] The lens assembly 24 includes a motor 241, the outer surface of which is fixedly connected to the inner surface of the connecting plate 231. The output end of the motor 241 is fixedly connected to a connecting bracket 242 via a coupling. A motor 243 is fixedly connected to the upper end of the connecting bracket 242. The output end of the motor 243 is fixedly connected to a connecting bracket 244 via a coupling. A motor 245 is fixedly connected to the right end of the connecting bracket 244. The output end of the motor 245 is fixedly connected to a connecting bracket 246 via a coupling. The inner surface of the connecting bracket 246 is fixedly connected to the camera body 247 via screws.

[0035] When installing the camera, the operator holds the fixing component 23 and aligns the connecting strip 232 at the rear end of the connecting plate 231 with the slot 222 at the front end of the connecting block 221, and slowly inserts it. As the connecting strip 232 goes deeper, the locking tongue 236 in the inner tube 233 is squeezed by the inner wall of the slot 222, and the compression spring 235 retracts inward. When the connecting strip 232 is fully inserted into the slot 222, the locking tongue 236 automatically pops out and locks into the limiting groove 223 under the elastic force of the spring 235. At this time, the pressing block 227 in the limiting groove 223 is pushed out to the upper and lower sides by the locking tongue 236, so that the pressing block 227 is tightly attached to the positioning block 224, completing the stable connection between the fixing component 23 and the connecting component 22, and then installing the lens assembly 24 and the camera onto the drone body 1.

[0036] When the UAV flies to the target area for low-altitude photogrammetry, motors 241, 243, and 245 can be activated sequentially to adjust the camera body 247 and thus the shooting angle. Activating motor 241 can adjust the position of connecting frame 242 and motor 243; activating motor 243 can adjust the position of connecting frame 244 and motor 245; and activating motor 245 can adjust the position of connecting frame 246 and camera body 247. Ultimately, all three motors act on the camera body 247, enabling the camera body 247 to be flexibly adjusted in three-dimensional space from multiple angles and in all directions, meeting the needs of different photogrammetry tasks.

[0037] It should be noted that the motor 1 241, motor 243, motor 3 245, and camera body 247 in this utility model are powered by the power supply of the UAV body 1 and controlled by the controller.

[0038] It should be noted that the specific installation methods, circuit connection methods, and control methods of the UAV body 1, motor 1 241, motor 2 243, motor 3 245, and camera body 247 in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0039] Working principle:

[0040] Installation: Hold the fixing component 23 and align the connecting strip 232 at the rear end of the connecting plate 231 with the slot 222 at the front end of the connecting block 221. Slowly insert it. As the connecting strip 232 goes deeper, the locking tongue 236 in the inner tube 233 is squeezed by the inner wall of the slot 222, and the compression spring 235 retracts inward. When the connecting strip 232 is fully inserted into the slot 222, the locking tongue 236 automatically pops out and locks into the limiting groove 223 under the elastic force of the spring 235. At this time, the pressing block 227 in the limiting groove 223 will be pushed up and down by the locking tongue 236, so that the pressing block 227 is tightly attached to the positioning block 224, completing the stable connection between the fixing component 23 and the connecting component 22, and then installing the lens component 24 and the camera onto the drone body 1.

[0041] Adjustment: The shooting angle is adjusted by activating motor 1 241, motor 243, and motor 3 245 to adjust the camera body 247. Activating motor 1 241 can adjust the position of connecting bracket 1 242 and motor 2 243, activating motor 2 243 can adjust the position of connecting bracket 2 244 and motor 3 245, and activating motor 3 245 can adjust the position of connecting bracket 3 246 and camera body 247. Ultimately, all three motors act on the camera body 247, enabling the camera body 247 to be flexibly adjusted in three-dimensional space from multiple angles and in all directions to meet the needs of different photogrammetry tasks.

[0042] Disassembly: Press the pressing block 226 on the positioning block 224, causing the slide bar 225 to move the pressing block 227 inward. This allows the two pressing blocks 227 to simultaneously press the two locking tongues 236 inward from both sides, overcoming the elastic force of the spring 235. This causes the locking tongues 236 to retract into the inner tube 233, releasing the locking state with the limiting groove 223. At this point, simply pull out the connecting strip 232 to complete the disassembly of the camera. No tools are required throughout the process, making the operation quick and simple.

[0043] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A camera mounting device for low-altitude photogrammetry using a drone, comprising the drone body (1), characterized in that: The inner surface of the UAV body (1) is fixedly connected to a fixing mechanism (2). The fixing mechanism (2) includes a connecting rod (21). A connecting component (22) is fixedly connected to the front end of the connecting rod (21). A fixing component (23) is snapped into the connecting component (22). A lens component (24) is installed inside the fixing component (23).

2. The camera fixing device for low-altitude photogrammetry of UAVs according to claim 1, characterized in that: The connecting component (22) includes a connecting block (221). The front end of the connecting block (221) has two slots (222), and the upper end of the connecting block (221) has two limiting slots (223). The upper and lower ends of the connecting block (221) are fixedly connected to two positioning blocks (224). The inner surfaces of the four positioning blocks (224) are slidably connected to slide rods (225). The ends of the four slide rods (225) that are close to each other are fixedly connected to pressing blocks (227), and the ends of the four slide rods (225) that are far apart from each other are fixedly connected to pressing blocks (226).

3. A camera fixing device for low-altitude photogrammetry of unmanned aerial vehicles according to claim 1, characterized in that: The fixing component (23) includes a connecting plate (231). Two connecting strips (232) are fixedly connected to the rear end of the connecting plate (231). An inner tube (233) is fixedly connected to the rear end of each connecting strip (232). A positioning plate (234) is fixedly connected to the inner surface of each inner tube (233). Four springs (235) are fixedly connected to the upper and lower ends of the positioning plate (234). The upper ends of the four springs (235) on the upper side are fixedly connected to a locking tongue (236). The lower ends of the four springs (235) on the lower side are fixedly connected to a locking tongue (236). The outer surfaces of the two locking tongues (236) are slidably connected to the inner surface of the inner tube (233).

4. A camera fixing device for low-altitude photogrammetry of unmanned aerial vehicles according to claim 3, characterized in that: The lens assembly (24) includes a motor (241), the output end of which is fixedly connected to a connecting frame (242) via a coupling, a motor (243) is fixedly connected to the upper end of the connecting frame (242), the output end of which is fixedly connected to a connecting frame (244) via a coupling, a motor (245) is fixedly connected to the right end of the connecting frame (244), the output end of which is fixedly connected to a connecting frame (246) via a coupling, and a camera body (247) is fixedly connected to the inner surface of the connecting frame (246) via screws.

5. A camera fixing device for low-altitude photogrammetry of unmanned aerial vehicles according to claim 4, characterized in that: The outer surface of the motor (241) is fixedly connected to the inner surface of the connecting plate (231).

6. A camera fixing device for low-altitude photogrammetry of unmanned aerial vehicles according to claim 2, characterized in that: The rear end of the connecting block (221) is fixedly connected to the front end of the connecting rod (21), and the outer surface of the connecting rod (21) is fixedly connected to the inner surface of the UAV body (1).

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