Water conservancy project underwater topographic surveying and mapping auxiliary device carried by unmanned aerial vehicle

By using an underwater topographic mapping device carried by a drone, and employing hydraulic rods and a waterproof frame structure, combined with sonar detection equipment and sensor equipment, the problems of low efficiency and poor safety of manned ship operations have been solved, achieving efficient and safe underwater mapping results.

CN223736273UActive Publication Date: 2025-12-30HANDAN WATER RESOURCES & HYDROPOWER SURVEY DESIGN & RES INST
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Patent Information

Application Number
CN202520427690.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-12-30
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing technologies for underwater topographic surveying using ships with manned operations are inefficient and lack safety in complex aquatic environments, with data accuracy significantly affected by human factors.

Method used

The underwater topographic mapping auxiliary device for water conservancy projects is carried by a drone, including a hydraulic rod, a connecting frame, a waterproof frame, sonar detection equipment and sensor equipment. The connecting frame is raised and lowered by the hydraulic rod, and the locking plate is flipped to lock it. The waterproof frame is bolted together and equipped with a gel plate and a reinforcing layer to improve the thermal insulation and strength of the waterproof frame. The depth measurement is carried out using the sonar detection equipment and sensor equipment.

Benefits of technology

This technology enables drones to conduct autonomous underwater mapping, avoiding the risks of deviation or grounding caused by human error, improving the accuracy and safety of measurements, extending the service life of equipment, and reducing the impact of temperature imbalance and water intrusion.

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Abstract

The utility model relates to the technical field of water conservancy project construction measurement, and discloses an unmanned aerial vehicle carried water conservancy project underwater topographic surveying and mapping auxiliary device which comprises unmanned aerial vehicle equipment, hydraulic rods are fixedly connected to the left side and the right side of the interior of the unmanned aerial vehicle equipment, and the bottom ends of the hydraulic rods are fixedly connected with connecting frames. The unmanned aerial vehicle equipment comprises a connecting frame, the front side and the rear side of the connecting frame are each in threaded connection with two bolts, the tail ends of the bolts are in threaded connection with a waterproof frame, the left side and the right side of the unmanned aerial vehicle equipment are each rotationally connected with two locking plates, the outer walls of the locking plates are fixedly connected with rubber sleeves, and the left side and the right side of the connecting frame are each provided with two locking grooves. According to the utility model, the locking plate is turned over to be locked with the locking groove, so that the waterproof purpose is achieved, and meanwhile, the damaged waterproof frame can be replaced under the rotation of the bolt, so that the flexibility of the waterproof frame is improved, and the yawing or reef touching risk caused by human error judgment during the operation of a traditional ship is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering construction surveying technology, and in particular to an underwater topographic mapping auxiliary device for water conservancy projects carried by a drone. Background Technology

[0002] Construction surveying is a crucial part of water conservancy project construction, running through the entire process and playing a decisive role in project quality, progress, and cost control. Accurate construction surveying ensures that the position and dimensions of each part of the water conservancy project meet design requirements. For example, accurate measurement of the position and slope of a dam is related to the stability and flood storage capacity of the dam. Large measurement deviations may cause the dam to be unable to withstand water pressure, leading to the risk of dam failure.

[0003] A search revealed Chinese Patent Publication No. CN216034975U, which discloses a surveying vessel for underwater topographic mapping. The vessel includes a hull, a drive assembly, a surveying assembly, a remote control antenna, and a collision avoidance device. This utility model incorporates a collision avoidance device on the side of the hull. When operating in shallow near-shore waters or rocky areas, the remote-controlled servo motor reverses, causing the transmission rod to retract the buoys to both sides of the hull. This allows the protective covers to cover both sides of the hull, preventing direct collisions with external objects. In the event of a collision, the buffer pads absorb the impact force, reducing damage to the hull and improving protection. The device boasts impressive performance. An auxiliary balancing device is installed in the center of the hull's top surface. During surveying operations in deep water, a servo motor is remotely activated, causing a transmission rod to push the pontoons away from the sides of the hull. This increases the hull's contact area with the water surface, allowing the pontoons to provide stable support through support rods, thus helping the hull maintain balance during surveying and ensuring smooth operation. However, in practical use, this device relies on manned operations, which is not only inefficient but also poses safety risks in complex water environments. Furthermore, the accuracy of the collected data is significantly affected by human factors. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an underwater topographic mapping auxiliary device for water conservancy projects carried by drones. It aims to improve the existing technology of using ships to carry out measurement work, which is not only inefficient, but also difficult to guarantee safety in complex water environments, and the accuracy of the collected data is greatly affected by human factors.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an underwater topographic mapping auxiliary device for water conservancy projects carried by a drone, comprising a drone device, wherein hydraulic rods are fixedly connected to the left and right sides of the drone device, a connecting frame is fixedly connected to the bottom end of the hydraulic rods, two bolts are threadedly connected to the front and rear sides of the connecting frame, and a waterproof frame is threadedly connected to the end of the bolts, two locking plates are rotatably connected to the left and right sides of the drone device, rubber sleeves are fixedly connected to the outer wall of the locking plates, two locking grooves are opened on the left and right sides of the connecting frame, and the bottom of the locking plates engages with the locking grooves, a sonar detection device is fixedly connected to the middle of the bottom wall of the drone device, a sensor device is fixedly connected to the left side of the sonar detection device, and a waterproof mechanism is provided on the inner bottom wall of the waterproof frame.

[0006] The above technical solution allows the locking plate to flip and lock with the locking groove as the connecting frame moves upward, thus protecting the sonar detection equipment and sensor equipment. At the same time, the damaged waterproof frame can be replaced by rotating the bolts, thereby improving the flexibility of the waterproof frame. Subsequently, the sonar detection equipment and sensor equipment can obtain stable and effective depth measurement data, thereby avoiding the risk of deviation or grounding caused by human judgment errors during traditional ship operations.

[0007] As a further description of the above technical solution:

[0008] The waterproofing mechanism includes a gel plate, the bottom wall of which is fixedly connected to the inner bottom wall of the waterproof frame. A reinforcing layer is fixedly connected to the top wall of the gel plate. Multiple reinforcing grids are fixedly connected at equal intervals to the front side of the inner wall of the reinforcing layer. Multiple connecting grids are fixedly connected at equal intervals to the right side of the inner wall of the reinforcing layer. A waterproof plate is fixedly connected to the top wall of the reinforcing layer. Multiple drying blocks are fixedly connected at equal intervals to the inner wall of the waterproof plate.

[0009] The above technical solutions improve the thermal insulation effect of the waterproof frame by connecting the gel plate, enhance the strength of the waterproof frame by connecting the reinforcing layer, extend the service life of the waterproof mechanism, and ensure the normal operation of the sonar detection equipment and sensor equipment by connecting the waterproof plate and multiple drying blocks.

[0010] As a further description of the above technical solution:

[0011] The waterproofing mechanism also includes a protective layer, the bottom of which is fixedly connected to the top of the waterproofing plate.

[0012] The above technical solution enables the waterproof membrane to be protected under the connection of the protective layer.

[0013] As a further description of the above technical solution:

[0014] A controller is fixedly connected to the right side of the inner wall of the waterproof frame. The controller is electrically connected to the UAV equipment, hydraulic rod, sonar detection equipment, and sensor equipment.

[0015] The above technical solution enables the device to be controlled via ground-based control equipment when connected to the controller.

[0016] As a further description of the above technical solution:

[0017] Multiple indicator lights are fixedly connected to the outer wall of the drone device, and the multiple indicator lights are arranged symmetrically at equal intervals.

[0018] The above technical solution enables the connection of multiple indicator lights to provide a warning effect to the outside world.

[0019] As a further description of the above technical solution:

[0020] Connecting posts are fixedly connected to the four corners at the top of the connecting frame, and connecting slots are provided at the four corners at the bottom of the drone device. The top of the connecting posts engages with the connecting slots.

[0021] The above technical solution improves the positioning effect between the connecting frame and the drone equipment by engaging the connecting column and the connecting groove.

[0022] As a further description of the above technical solution:

[0023] A rubber ring is fixedly connected to the middle of each of the bolts, and a sealing ring is fixedly connected to the middle of the waterproof frame.

[0024] The above technical solution reduces rotational damage to one side of the connecting frame caused by the bolts, thanks to the rubber ring connection.

[0025] As a further description of the above technical solution:

[0026] Protective frames are fixedly connected to the bottom left and right sides of the connecting frame, and corner protectors are fixedly connected to the bottom front and back sides of the protective frames.

[0027] The above technical solution enables the bottom of the device to be protected through the connection of the protective frame and corner pads.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the hydraulic rod is activated, causing the bottom end of the connecting frame to move upward, thereby raising the connecting frame and flipping the locking plate to lock it with the locking groove. At the same time, the damaged waterproof frame can be replaced by rotating the bolt, thus improving the flexibility of protection. Subsequently, when the UAV is flying or going deep underwater, stable and effective depth measurement data is obtained through sonar detection equipment and sensor equipment, thus avoiding the risk of deviation or grounding caused by human judgment errors in traditional ship operations.

[0030] 2. In this utility model, the connection of the gel plate improves the thermal insulation effect of the waterproof frame, avoiding the situation where temperature imbalance affects the equipment and causes measurement inaccuracies. At the same time, the connection of multiple reinforcing grids and connecting grids can improve the strength of the waterproof frame and ensure its service life. Furthermore, the connection between the waterproof plate and multiple drying blocks ensures the normal use of the equipment. Attached Figure Description

[0031] Figure 1 A perspective view of the underwater topographic mapping auxiliary device for water conservancy projects carried by a drone, as proposed in this utility model;

[0032] Figure 2 This is a schematic diagram of the connecting frame of the underwater topographic mapping auxiliary device for water conservancy projects carried by a drone, as proposed in this utility model.

[0033] Figure 3 This is a cross-sectional view of the waterproof frame of the underwater topographic mapping auxiliary device for water conservancy projects carried by a drone, as proposed in this utility model.

[0034] Figure 4 This is a schematic diagram of the sonar detection equipment of the underwater topographic mapping auxiliary device for water conservancy projects carried by a drone, as proposed in this utility model.

[0035] Figure 5 This is a schematic diagram of the waterproof mechanism of the underwater topographic mapping auxiliary device for water conservancy projects carried by the UAV proposed in this utility model.

[0036] Legend:

[0037] 1. Unmanned Aerial Vehicle (UAV) Equipment; 2. Waterproof Mechanism; 201. Gel Plate; 202. Reinforcing Layer; 203. Reinforcing Grid Plate; 204. Connecting Grid Plate; 205. Waterproof Membrane; 206. Drying Block; 207. Protective Layer; 3. Hydraulic Rod; 4. Connecting Frame; 5. Bolt; 6. Waterproof Frame; 7. Locking Plate; 8. Rubber Sleeve; 9. Locking Groove; 10. Sonar Detection Equipment; 11. Sensor Equipment; 12. Indicator Light; 13. Connecting Column; 14. Connecting Groove; 15. Controller; 16. Protective Frame; 17. Corner Protector; 18. Rubber Ring; 19. Sealing Ring. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of an underwater topographic mapping auxiliary device for water conservancy projects carried by a drone. The device includes a drone 1. Hydraulic rods 3 are fixedly connected to both the left and right sides of the drone 1. A connecting frame 4 is fixedly connected to the bottom end of each hydraulic rod 3, allowing the connecting frame 4 to rise and fall under the drive of the hydraulic rods 3. Two bolts 5 are threadedly connected to the front and rear sides of the connecting frame 4. A waterproof frame 6 is threadedly connected to the end of each bolt 5, allowing for the installation and replacement of the waterproof frame 6. Two locking plates 7 are rotatably connected to the left and right sides of the drone 1, and rubber sleeves 8 are fixedly connected to the outer wall of each locking plate 7. Two locking slots 9 are provided on the left and right sides of the connecting frame 4, so that the connection effect of the connecting frame 4 can be strengthened by flipping the locking plate 7 during use. The bottom of the locking plate 7 is engaged with the locking slot 9. A sonar detection device 10 is fixedly connected to the middle of the bottom wall of the UAV device 1. A sensor device 11 is fixedly connected to the left side of the sonar detection device 10. The sonar detection device 10 sends ultrasonic pulses downward, the receiver captures the return signal, and calculates the water depth information. Then, the sensor device 11 can enhance the accuracy and stability of underwater topographic mapping and reduce the impact of human error. A waterproof mechanism 2 is provided on the inner bottom wall of the waterproof frame 6.

[0040] Specifically, by activating the hydraulic rod 3, the bottom end of the hydraulic rod 3 can drive the connecting frame 4 to rise and fall, thereby realizing the vertical movement of the connecting frame 4. By flipping the locking plate 7, it can lock and engage with the locking grooves 9 on both sides of the connecting frame 4, which improves the connection effect between the connecting frame 4 and the UAV equipment 1 and ensures the stability of the connection. This achieves the purpose of the waterproof frame 6 protecting the sonar detection equipment 10 and the sensor equipment 11. At the same time, when the waterproof frame 6 is damaged, the damaged waterproof frame 6 can be replaced by rotating the bolt 5, thereby improving the flexibility and maintenance convenience of the waterproof frame 6. By activating the UAV equipment 1, it can autonomously fly to the designated water area along the set route and use its onboard sonar detection equipment 10 and sensor equipment 11 to complete accurate mapping tasks. In this way, the UAV equipment 1 can efficiently carry out underwater detection work, thereby avoiding the risk of deviation or grounding caused by human judgment errors in traditional ship operations, and improving the safety and accuracy of the operation.

[0041] Reference Figure 1 , Figure 3 and Figure 5 The waterproof mechanism 2 includes a gel plate 201. The bottom wall of the gel plate 201 is fixedly connected to the inner bottom wall of the waterproof frame 6, thereby improving the thermal insulation effect of the waterproof frame 6. A reinforcing layer 202 is fixedly connected to the top wall of the gel plate 201. Multiple reinforcing grids 203 are fixedly connected at equal intervals on the front side of the inner wall of the reinforcing layer 202, and multiple connecting grids 204 are fixedly connected at equal intervals on the right side of the inner wall of the reinforcing layer 202. With the reinforcement layer 202, the strength of the waterproof mechanism 2 is improved by the connection and fixation of multiple reinforcing grids 203 and connecting grids 204. A waterproof plate 205 is fixedly connected to the top wall of the reinforcing layer 202, and multiple drying blocks 206 are fixedly connected at equal intervals on the inner wall of the waterproof plate 205. The waterproof effect is improved by the connection between the waterproof plate 205 and the multiple drying blocks 206.

[0042] Specifically, the thermal insulation performance inside the waterproof frame 6 is improved by connecting the gel plate 201, effectively preventing adverse effects on the sonar detection device 10 and sensor device 11 caused by temperature imbalance, thereby avoiding measurement errors caused by temperature fluctuations. In addition, the reinforcement layer 202 enhances the structural strength of the waterproof frame 6 by the tight combination of multiple reinforcing grids 203 and connecting grids 204, thereby extending its service life. At the same time, the tight cooperation between the waterproof plate 205 and multiple drying blocks 206 ensures the waterproof performance of the waterproof frame 6, effectively preventing damage to the equipment due to water intrusion.

[0043] Reference Figure 1 , Figure 4 and Figure 5 The waterproof mechanism 2 also includes a protective layer 207, the bottom of which is fixedly connected to the top of the waterproof plate 205; a controller 15 is fixedly connected to the right side of the inner wall of the waterproof frame 6, and the controller 15 is electrically connected to the UAV equipment 1, the hydraulic rod 3, the sonar detection equipment 10 and the sensor equipment 11 respectively; multiple indicator lights 12 are fixedly connected to the outer wall of the UAV equipment 1, and the multiple indicator lights 12 are arranged symmetrically at equal intervals;

[0044] Specifically, the bottom of the waterproof mechanism 2 can be protected by the protective layer 207. The controller 15, which is electrically connected to the UAV equipment 1, hydraulic rod 3, sonar detection equipment 10 and sensor equipment 11, can control the device through the ground control equipment. The indicator light 12 can provide a warning to the outside world.

[0045] Reference Figure 1 , Figure 2 and Figure 3Connecting posts 13 are fixedly connected to the top four corners of the connecting frame 4, and connecting grooves 14 are opened at the bottom four corners of the drone equipment 1. The top of the connecting posts 13 engages with the connecting grooves 14. Rubber rings 18 are fixedly connected to the middle of multiple bolts 5, and sealing rings 19 are fixedly connected to the middle of the waterproof frame 6. Protective frames 16 are fixedly connected to the bottom left and right sides of the connecting frame 4, and corner protectors 17 are fixedly connected to the bottom front and rear sides of the protective frame 16.

[0046] Specifically, when the top of the connecting column 13 engages with the connecting groove 14, the connection effect between the connecting frame 4 and the drone equipment 1 is improved. The rubber ring 18 reduces the rotational damage to the connecting frame 4 caused by the bolt 5. The protective frame 16 and the corner protector 17 improve the protection of the bottom of the device.

[0047] Working principle: When in use, the hydraulic rod 3 is activated, which drives the connecting frame 4 to rise and fall. The locking plate 7 is flipped to lock and engage with the locking grooves 9 on both sides of the connecting frame 4, which improves the connection between the connecting frame 4 and the UAV equipment 1. This achieves the purpose of the waterproof frame 6 protecting the sonar detection equipment 10 and the sensor equipment 11. At the same time, when the waterproof frame 6 is damaged, the damaged waterproof frame 6 can be replaced by rotating the bolt 5, thereby improving the flexibility of the waterproof frame 6. By activating the UAV equipment 1, it can fly autonomously to the designated water area along the set route and complete the accurate mapping task through the sonar detection equipment 10 and the sensor equipment 11, thus avoiding the risk of deviation or grounding caused by human judgment errors in traditional ship operations.

[0048] Furthermore, the connection of the gel plate 201 improves the thermal insulation effect inside the waterproof frame 6, preventing temperature imbalance from affecting the sonar detection device 10 and sensor device 11 and causing measurement inaccuracies. At the same time, with the connection of multiple reinforcing grids 203 and connecting grids 204, the reinforcing layer 202 can improve the strength of the waterproof frame 6 and increase its service life. Meanwhile, with the connection of the waterproof plate 205 and multiple drying blocks 206, the waterproof effect of the waterproof frame 6 is guaranteed, preventing damage to the equipment.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An unmanned aerial vehicle-mounted auxiliary device for surveying underwater topography of water conservancy projects, comprising an unmanned aerial vehicle device (1), characterized in that: The left and right sides of the unmanned equipment (1) are fixedly connected with hydraulic rods (3), the bottom ends of the hydraulic rods (3) are fixedly connected with connecting frames (4), the front and rear sides of the connecting frames (4) are threadedly connected with two bolts (5), the distal ends of the bolts (5) are threadedly connected with waterproof frames (6), the left and right sides of the unmanned equipment (1) are rotatably connected with two locking plates (7), the outer walls of the locking plates (7) are fixedly connected with rubber sleeves (8), the left and right sides of the connecting frames (4) are provided with two locking grooves (9), the bottoms of the locking plates (7) are clamped with the locking grooves (9), the bottom wall of the unmanned equipment (1) is fixedly connected with a sonar detection equipment (10), the left side of the sonar detection equipment (10) is fixedly connected with a sensor equipment (11), and the inner bottom wall of the waterproof frame (6) is provided with a waterproof mechanism (2).

2. The unmanned aerial vehicle-mounted auxiliary device for surveying underwater topography of hydraulic projects according to claim 1, characterized in that: The waterproof mechanism (2) comprises a gel plate (201), the bottom wall of the gel plate (201) is fixedly connected to the inner bottom wall of the waterproof frame (6), the top wall of the gel plate (201) is fixedly connected with a reinforcing layer (202), a plurality of reinforcing grid plates (203) are fixedly connected to the front inner wall of the reinforcing layer (202) at equal intervals, a plurality of connecting grid plates (204) are fixedly connected to the right inner wall of the reinforcing layer (202) at equal intervals, the top wall of the reinforcing layer (202) is fixedly connected with a waterproof plate (205), and the inner wall of the waterproof plate (205) is fixedly connected with a plurality of drying blocks (206) at equal intervals. 3.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 2, characterized in that: The waterproof mechanism (2) further comprises a protection layer (207), and the bottom of the protection layer (207) is fixedly connected to the top of the waterproof plate (205). 4.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 1, characterized in that: The inner wall of the right side of the waterproof frame (6) is fixedly connected with a controller (15), and the controller (15) is electrically connected with the unmanned equipment (1), the hydraulic rod (3), the sonar detection equipment (10), the sensor equipment (11) and the like. 5.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 1, characterized in that: The outer wall of the unmanned equipment (1) is fixedly connected with a plurality of indicator lights (12), and the plurality of indicator lights (12) are arranged in a symmetrical manner at equal intervals. 6.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 1, characterized in that: The top four corners of the connecting frame (4) are fixedly connected with connecting columns (13), and the bottom four corners of the unmanned equipment (1) are provided with connecting grooves (14), and the top of the connecting column (13) is clamped with the connecting groove (14). 7.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 1, characterized in that: The middle portions of the plurality of bolts (5) are fixedly connected with rubber rings (18), and the middle portion of the waterproof frame (6) is fixedly connected with a sealing ring (19). 8.The unmanned aerial vehicle-mounted auxiliary device for hydraulic engineering underwater topographic surveying according to claim 1, characterized in that: The left and right sides of the bottom of the connecting frame (4) are fixedly connected with protection frames (16), and the front and rear sides of the bottom of the protection frame (16) are fixedly connected with corner pads (17).

Citation Information

Patent Citations

  • Surveying ship for underwater topographic surveying and mapping

    CN216034975U