Bottom suspension device for unmanned aerial vehicle to measure river flow

Abstract

The utility model relates to a bottom suspension device for unmanned plane river flow measurement, and aims at solving the technical problem that the river flow detection mechanism is complicated to dismount and assemble, needs additional tools and is low in efficiency, and the detection mechanism is insufficient in installation stability, is easy to shake and deviate in the flight process affected by airflow and vibration, and further affects the detection operation efficiency and data accuracy, comprising an installation cylinder, a first spring is installed in the installation cylinder inner chamber, a limiting column is movably connected to the front and rear ends of the installation column respectively, and the limiting column end penetrates the installation cylinder, a communication groove is formed in the both ends of the installation cylinder respectively, an arc plate is installed below the rotating frame end, and the arc plate is clamped in the installation cylinder, the utility model has the advantages of no need of additional tools for dismounting and assembling, simple and efficient operation, axial positioning and radial clamping double fixing, strong installation stability, flight interference resistance, accurate detection data guarantee, and the effect of greatly improving the river flow detection operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicles (UAVs), specifically a bottom suspension device for measuring river flow using UAVs. Background Technology

[0002] Unmanned aerial vehicle (UAV) river flow measurement is a modern hydrological monitoring method. It uses UAVs equipped with high-definition cameras or sensors to fly along the river and collect data such as surface flow velocity, water level, and cross-sectional morphology. Combined with computer vision technology, the system can automatically analyze surface video and identify the trajectory of floating objects to estimate surface flow velocity. By combining this with measured underwater cross-sectional data, the real-time river flow can be calculated. This method can replace traditional manual wading measurements, significantly improving operational safety and efficiency. It is particularly suitable for dangerous scenarios such as rapid currents or complex terrain during flood season, providing crucial technical support for hydrological monitoring and flood control decision-making.

[0003] A Chinese patent discloses a bottom suspension device for measuring river flow using a drone (authorization announcement number CN208842638U). The patented technology includes a drone body and a base, a top rod and a crossbar connected by an insertion, cross plates fixedly installed on the left and right side legs, a sliding rod inserted into the inner wall of the cross plate, a spring sleeved on the lower outer wall of the sliding rod, and a top plate fixedly installed at the lower end of the sliding rod.

[0004] However, existing technologies have the following problems when used:

[0005] Firstly, in the existing technology, the disassembly and assembly process of the river flow detection mechanism carried by the drone is complicated and requires the assistance of additional tools, which increases the difficulty of operation, resulting in low disassembly and assembly efficiency, making it difficult to quickly complete the installation, replacement or maintenance of the detection mechanism, thus slowing down the overall detection operation progress.

[0006] Secondly, the existing detection mechanism has an imperfect fixed structure design, which can only achieve positioning in one direction. During flight, it is easily affected by airflow impact, fuselage vibration, etc., resulting in shaking, deviation, or even falling off. This leads to unstable detection data collection, making it difficult to guarantee accuracy and failing to meet the needs of hydrological monitoring. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a bottom suspension device for measuring river flow by drone. This device solves the technical problems of the current drone river flow measurement, such as the cumbersome disassembly and assembly of the river flow detection mechanism, the need for additional tools and low efficiency, and the insufficient installation stability and easy shaking and displacement of the detection mechanism due to airflow and vibration during flight, which in turn affects the efficiency of the detection operation and the accuracy of the data.

[0008] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a bottom suspension device for measuring river flow by UAV is designed, including an installation cylinder, a first spring is installed in the inner cavity of the installation cylinder, an installation column is inserted into the inner cavity of the installation cylinder, and limit columns are movably connected to the front and rear ends of the installation column, with the end of the limit column penetrating the installation cylinder;

[0009] The mounting cylinder has connecting grooves at both ends. The inner walls of the connecting grooves are equipped with rotating shafts at the front and rear ends. The rotating shafts are rotatably connected to rotating frames. An arc-shaped plate is installed below the end of the rotating frame and is clamped in the mounting cylinder.

[0010] In this design, the suspension device utilizes a combination of components including a mounting cylinder, a first spring, a mounting column, a limiting column, a rotating frame, and an arc-shaped plate to facilitate convenient disassembly and secure installation of the testing mechanism. During installation, the mounting column is inserted into the first circular groove of the mounting cylinder. Once in place, the third spring pushes the limiting column through the limiting hole, quickly completing the positioning and fixing. During disassembly, pressing the disc moves the push column, pressing the limiting column back into the second circular groove. The first spring releases its potential energy, ejecting the mounting column. No complex tools are required, making the operation highly efficient. Simultaneously, when the mounting column is inserted, the upper cylindrical section presses against the connecting plate of the rotating frame, causing the rotating frame to rotate around its axis. This allows the arc-shaped plate to insert into the annular groove of the mounting column and fit tightly, effectively preventing the mounting column from wobbling or shifting during testing and ensuring accurate test data.

[0011] Preferably, the upper end of the mounting cylinder is equipped with a drone base plate, the lower end of the mounting cylinder has a first circular groove, and the upper end of the first spring is mounted on the top of the inner wall of the first circular groove.

[0012] In practical applications, the UAV base plate at the upper end of the mounting cylinder provides a stable connection between the suspension device and the UAV, ensuring the integrity of the connection during flight and preventing loosening from affecting inspection. The first circular groove at the lower end of the mounting cylinder provides an insertion channel for the mounting post, ensuring smooth installation. The upper end of the first spring is fixed to the top of the first circular groove, providing stable compression energy storage support when the mounting post is inserted, and reliably releasing elastic potential energy during disassembly to push the mounting post to pop out automatically, further optimizing the convenience of disassembly and assembly and facilitating efficient inspection operations.

[0013] Preferably, the mounting cylinder has limit holes at both ends, a river flow detection mechanism is installed at the lower end of the mounting column, a second circular groove is provided at both ends of the mounting column, a third spring is installed on the inner wall of the second circular groove, a limit post is installed at the end of the third spring, and the end of the limit post passes through the limit hole.

[0014] In practical applications, the positioning structure is formed by the limiting hole of the mounting cylinder, the second circular groove of the mounting column, the third spring, and the limiting column. The lower end of the mounting column is connected to the detection mechanism. After being inserted into the first circular groove, the third spring pushes the limiting column through the limiting hole, achieving automatic positioning and locking without additional operation, thus simplifying the installation process. This design ensures the installation stability of the detection mechanism under the influence of flight turbulence and airflow, preventing displacement and detachment, while also providing reasonable space for disassembly. External force can retract the limiting column, releasing the lock and improving the practicality and operational flexibility of the equipment.

[0015] Preferably, brackets are installed at the front and rear ends of the mounting cylinder, a second spring is installed at the front end of the bracket, a disc is installed at the end of the second spring, and a push column is installed at the rear end of the disc.

[0016] In practical applications, the brackets at both ends of the mounting cylinder provide stable mounting support for the second spring, disc, and push column, ensuring the coordination of all components. During disassembly, pressing the disc moves the push column inward, causing the top limit post to retract into the second circular groove, releasing the positioning lock. The second spring automatically resets the disc and push column after being pressed, preparing for the next installation. The entire mechanism requires no professional tools or complex steps; disassembly can be triggered manually by pressing, reducing operational difficulty, improving disassembly efficiency and stability, and optimizing the user experience.

[0017] Preferably, the diameter of the push post is smaller than the diameter of the limiting hole, and the push post, the limiting hole and the limiting post are coaxial with the horizontal longitudinal axis.

[0018] In practical applications, the diameter of the push post is smaller than the diameter of the limiting hole to ensure that the push post can pass smoothly through the limiting hole and avoid jamming. The horizontal longitudinal axis of the push post, the limiting hole, and the limiting post are collinear, so that the force of the push post is transmitted vertically to the limiting post, avoiding force dispersion and ensuring that the limiting post quickly retracts into the second circular groove. This improves the smoothness and stability of disassembly, prevents component damage, and reduces the difficulty of operation, allowing operators to complete disassembly quickly and ensuring the continuity and efficiency of testing operations.

[0019] Preferably, a connecting plate is installed above the end of the rotating frame, and cylinders are installed on both sides of the upper end of the mounting column, with the top of the cylinders fitting against the lower end of the connecting plate.

[0020] In practical applications, the connecting plate of the rotating frame and the cylinder of the mounting column form an automatic linkage structure, enabling synchronous triggering of installation and clamping. When the mounting column is inserted into the first circular groove, the cylinder moves downward and continuously presses against the connecting plate. The pressure is transmitted through the connecting plate, causing the rotating frame to rotate stably around the axis, driving the arc-shaped plate to rotate synchronously inward. No additional manual operation is required; the clamping action is triggered solely by the insertion of the mounting column, achieving integrated installation and clamping, simplifying the process, improving efficiency, and ensuring the timeliness and accuracy of the clamping action.

[0021] Preferably, the outer wall of the mounting column is provided with an annular groove, the arc-shaped plate is inserted into the annular groove, and the arc-shaped plate fits against the inner wall of the annular groove.

[0022] In practical applications, the annular groove of the mounting post provides a locking position for the curved plate, ensuring that the curved plate is accurately inserted and conforms to the inner wall of the annular groove. The curved plate generates a uniform lateral clamping force on the mounting post, limiting its radial sway displacement. Combined with the axial positioning of the limiting post, this forms a multi-directional, three-dimensional fixing system. This effectively resists the impact of airflow impact and fuselage vibration during flight, preventing the mounting post from shifting or loosening, significantly improving the installation stability of the testing mechanism, and ensuring the accuracy and reliability of the testing data.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. When using a drone to detect river flow, this utility model involves inserting the mounting column connected to the river flow detection mechanism into the first circular groove of the mounting cylinder. When the mounting column moves to the preset installation position, the third spring in its second circular groove undergoes elastic deformation, pushing the limiting column through the limiting hole of the mounting cylinder, thus quickly completing the positioning and installation of the detection mechanism. No additional tools are required throughout the process, making operation simple. When disassembling after detection, pressing the discs on both sides of the mounting cylinder moves the push column inward. The push column presses against the limiting column and retracts into the second circular groove. The first spring in the mounting cylinder releases its elastic potential energy, pushing the mounting column out of the first circular groove. Disassembly is efficient and quick, effectively improving the overall efficiency of river flow detection operations and reducing operational difficulty.

[0025] 2. During the installation of the river flow detection mechanism, this utility model can simultaneously enhance installation stability. When the installation column is inserted into the first circular groove, the two cylinders on its upper ends move together, gradually contacting and pressing against the lower end of the connecting plate of the rotating frame. After the connecting plate is subjected to force, it drives the rotating frame to rotate around the rotating shaft of the inner wall of the connecting groove of the installation cylinder, so that the arc plate at the end of the rotating frame rotates inward synchronously, inserts into the annular groove on the outer wall of the installation column and fits tightly. The arc plate forms a stable clamp on the installation column from the radial direction. Combined with the axial positioning of the limiting column, it effectively resists the airflow impact and fuselage vibration during the flight of the UAV, avoids the installation column from shaking, shifting or falling off, ensures the stable operation of the detection mechanism, and provides strong support for the accuracy of the detection data. Attached Figure Description

[0026] Figure 1 This is a first-view perspective perspective view of the present invention;

[0027] Figure 2 This is a second-view perspective perspective view of the present invention;

[0028] Figure 3 This is a three-dimensional schematic diagram of the connection between the drone base plate and the mounting cylinder according to this utility model;

[0029] Figure 4 This is a three-dimensional schematic diagram of the connection between the river flow detection mechanism and the mounting column of this utility model;

[0030] Figure 5 This is a sectional view of the mounting column of this utility model;

[0031] Figure 6 This is a three-dimensional schematic diagram of the rotating frame of this utility model.

[0032] In the picture:

[0033] 100. Unmanned aerial vehicle (UAV) base plate;

[0034] 110. Mounting cylinder; 111. First circular groove;

[0035] 112. Limiting hole; 113. Communicating groove; 120. First spring;

[0036] 200. River flow monitoring agencies;

[0037] 210. Mounting post; 211. Annular groove; 212. Second circular groove;

[0038] 220, bracket; 230, disc; 240, push post; 250, limit post;

[0039] 260, cylinder; 270, second spring; 280, third spring;

[0040] 300. Rotating frame;

[0041] 310. Curved plate; 320. Rotating shaft; 330. Connecting plate. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0043] Example 1: A bottom suspension device for measuring river flow using an unmanned aerial vehicle (UAV), see [link / reference]. Figures 1 to 6The system includes an installation cylinder 110, with a first spring 120 installed inside the cylinder 110. An installation post 210 is inserted into the cylinder 110, and limit posts 250 are movably connected to the front and rear ends of the installation post 210, with the ends of the limit posts 250 penetrating the installation cylinder 110. A drone base plate 100 is installed on the upper end of the installation cylinder 110, and a first circular groove 111 is formed at the lower end of the cylinder 110, with the upper end of the first spring 120 mounted on the top of the inner wall of the first circular groove 111. Limit holes 112 are formed at the front and rear ends of the installation cylinder 110, and a river flow detection mechanism 200 is installed at the lower end of the installation post 210. The column 210 has a second circular groove 212 at both ends. A third spring 280 is installed on the inner wall of the second circular groove 212. A limit post 250 is installed at the end of the third spring 280, and the end of the limit post 250 passes through the limit hole 112. A bracket 220 is installed at both ends of the mounting cylinder 110. A second spring 270 is installed at the front end of the bracket 220. A disc 230 is installed at the end of the second spring 270. A push post 240 is installed at the rear end of the disc 230. The diameter of the push post 240 is smaller than the diameter of the limit hole 112. The push post 240, the limit hole 112 and the limit post 250 are coaxial with the horizontal longitudinal axis.

[0044] When using a drone to conduct river flow detection operations, the mounting post 210 connected to the river flow detection mechanism 200 is first aligned with the first circular groove 111 on the mounting cylinder 110, and then the mounting post 210 is smoothly inserted into the groove. As the mounting post 210 gradually penetrates into the first circular groove 111, when it moves to the preset installation position, the third spring 280 in the second circular groove 212 on the mounting post 210 undergoes elastic deformation, generating an outward thrust. Under the action of this thrust, the limiting post 250 is smoothly pushed out, passing through the corresponding limiting hole 112 on the mounting cylinder 110, thereby quickly completing the positioning and installation of the river flow detection mechanism 200 and the mounting post 210. The entire installation process does not require additional tools, and the operation is simple and efficient.

[0045] When the detection work is completed and the river flow detection mechanism 200 needs to be disassembled, maintained, or replaced, simply press the discs 230 on both sides of the mounting cylinder 110 by hand. The discs 230, under pressure, drive the push column 240 at the rear end to move inward simultaneously. At this time, the second spring 270 connected to the discs 230 undergoes elastic deformation. During the movement, the push column 240 acts on the limiting column 250, causing the limiting column 250 to overcome the elastic force of the third spring 280 and move into the second circular groove 212 until it retracts completely. At this time, the first spring 120 inside the mounting cylinder 110 releases its stored elastic potential energy, generating an upward thrust that smoothly pushes the mounting column 210 out of the first circular groove 111. The entire disassembly process is equally convenient and quick, significantly improving the overall efficiency of the river flow detection operation and reducing the workload for operators.

[0046] For details, see Figures 1 to 6 The mounting cylinder 110 has connecting grooves 113 at both ends. The inner walls of the connecting grooves 113 are fitted with rotating shafts 320 at the front and rear ends, respectively. The rotating shafts 320 are rotatably connected to the ends of rotating frames 300. An arc-shaped plate 310 is installed below the ends of the rotating frames 300 and is clamped in the mounting cylinder 110. A connecting plate 330 is installed above the ends of the rotating frames 300. Cylinders 260 are installed on both sides of the upper end of the mounting column 210, and the top of the cylinders 260 is attached to the lower end of the connecting plate 330. An annular groove 211 is opened on the outer wall of the mounting column 210. The arc-shaped plate 310 is inserted into the annular groove 211 and is attached to the inner wall of the annular groove 211.

[0047] During the installation of the river flow detection mechanism 200, as the installation column 210 continues to penetrate deeper into the first circular groove 111, the cylinders 260 on both sides of the upper end of the installation column 210 also move synchronously inside the first circular groove 111. As the installation column 210 gradually approaches the installation position, the top of the cylinder 260 makes smooth contact with the lower end of the connecting plate 330 above the end of the rotating frame 300 and continues to press it tightly.

[0048] After the connecting plate 330 is subjected to pressure from the cylinder 260, it drives the entire rotating frame 300 to rotate smoothly around the rotating shaft 320 of the inner wall of the connecting groove 113 of the mounting cylinder 110. During the rotation, the arc plate 310 at the lower end of the rotating frame 300 rotates inward synchronously and finally inserts into the pre-set annular groove 211 on the outer wall of the mounting column 210.

[0049] After the arc-shaped plate 310 is inserted into the annular groove 211, its outer wall fits tightly against the inner wall of the annular groove 211, forming a stable clamping structure that effectively limits the mounting column 210 in the radial direction. This ensures that after installation, the mounting column 210 is not only axially positioned by the limiting column 250 but also radially fixed by the clamping of the arc-shaped plate 310. This effectively resists external interference such as airflow impact and fuselage vibration that may be encountered during UAV flight, preventing the mounting column 210 from shaking, shifting, or even falling off. This significantly improves the installation stability of the river flow detection mechanism 200, ensuring that the equipment remains stable throughout the detection process and providing strong support for the accuracy and reliability of river flow detection data.

[0050] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0051] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A bottom-suspended device for measuring river flow using an unmanned aerial vehicle (UAV), comprising a mounting cylinder (110), characterized in that, The inner cavity of the mounting cylinder (110) is equipped with a first spring (120), and the inner cavity of the mounting cylinder (110) is inserted into the mounting post (210). The front and rear ends of the mounting post (210) are respectively movably connected to limit posts (250), and the end of the limit post (250) penetrates the mounting cylinder (110). The mounting cylinder (110) has a connecting groove (113) at both ends. The inner wall of the connecting groove (113) has a rotating shaft (320) installed at both ends. The rotating shaft (320) is rotatably connected to a rotating frame (300). An arc plate (310) is installed below the end of the rotating frame (300), and the arc plate (310) is clamped in the mounting cylinder (110).

2. The bottom suspension device for measuring river flow using a drone as described in claim 1, characterized in that, The upper end of the mounting cylinder (110) is equipped with a drone base plate (100), and the lower end of the mounting cylinder (110) is provided with a first circular groove (111), and the upper end of the first spring (120) is installed on the top of the inner wall of the first circular groove (111).

3. The bottom suspension device for measuring river flow using a drone as described in claim 1, characterized in that, Limiting holes (112) are respectively opened at the front and rear ends of the mounting cylinder (110). A river flow detection mechanism (200) is installed at the lower end of the mounting column (210). A second circular groove (212) is respectively opened at the front and rear ends of the mounting column (210). A third spring (280) is installed on the inner wall of the second circular groove (212). A limiting post (250) is installed at the end of the third spring (280), and the end of the limiting post (250) passes through the limiting hole (112).

4. The bottom suspension device for measuring river flow using a drone as described in claim 3, characterized in that, The mounting cylinder (110) is equipped with brackets (220) at its front and rear ends respectively. A second spring (270) is installed at the front end of the bracket (220), a disc (230) is installed at the end of the second spring (270), and a push column (240) is installed at the rear end of the disc (230).

5. The bottom suspension device for measuring river flow using a drone as described in claim 4, characterized in that, The diameter of the push post (240) is smaller than the diameter of the limiting hole (112), and the push post (240), the limiting hole (112) and the limiting post (250) are coaxial with the horizontal longitudinal axis.

6. The bottom suspension device for measuring river flow using a drone as described in claim 1, characterized in that, A connecting plate (330) is installed above the end of the rotating frame (300), and cylinders (260) are installed on both sides of the upper end of the mounting column (210), with the top of the cylinders (260) attached to the lower end of the connecting plate (330).

7. The bottom suspension device for measuring river flow using a drone as described in claim 1, characterized in that, The outer wall of the mounting column (210) is provided with an annular groove (211), and the arc plate (310) is inserted into the annular groove (211) and the arc plate (310) fits against the inner wall of the annular groove (211).

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