Unmanned aerial vehicle water sampler for river water body

Abstract

The utility model provides a kind of unmanned plane water sampler for river water body sampling, belong to environmental monitoring equipment technical field.It includes unmanned plane, the unmanned plane bottom is equipped with fixing frame, support angle is respectively equipped with in fixing frame bottom end both sides, the fixing frame below is equipped with water taking box body, the water taking box body is connected between fixing frame by water taking box lifting device, the water taking box body is equipped with sealing box door, several sampling tube assemblies are equipped in water taking box body, the water taking box body is also equipped with sampling tube water taking mechanism.Unmanned plane single flight can realize the synchronous sampling of multiple sampling tube assemblies, overcome the insufficient sampling amount of existing unmanned plane single flight, only can gather single sample, the efficiency bottleneck of insufficient sampling amount;Sampling tube assembly installation is convenient to disassemble and pick, and disassembly efficiency is high, and sampling tube assembly is fixed stable, can effectively avoid the sample leakage and damage caused by shaking displacement.

Description

Technical Field

[0001] This utility model belongs to the field of environmental monitoring equipment technology, and relates to a drone water sampler for river water sampling. Background Technology

[0002] With the increasing demand for water environment management, the frequency and accuracy requirements for river water quality monitoring are rising. Traditional manual sampling methods require operators to travel by boat or wade through water, which is prone to accidents in turbulent, polluted, or complex waterways, posing high safety risks. Furthermore, each operation can only obtain samples from a limited number of points, and the positioning accuracy is affected by human factors. To overcome these problems, drone-assisted sampling technology has gradually emerged. However, most existing drones carry a single sampling bottle, which is submerged in the water during sampling, resulting in low collection efficiency as each flight can only collect a single sample. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a drone-based water sampler for river water sampling.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A drone-based water sampler for river water sampling includes a drone with a fixed frame at its bottom. Supporting corners are provided on both sides of the bottom of the fixed frame. A water sampling tank is located below the fixed frame. The water sampling tank is connected to the fixed frame via a water sampling tank lifting device. The water sampling tank has a sealed door. Several sampling tube assemblies are located inside the water sampling tank. The water sampling tank also has a sampling tube water sampling mechanism.

[0005] A single drone flight can simultaneously sample multiple sampling tube components, overcoming the efficiency bottleneck of insufficient sampling volume in a single drone flight, which can only collect a single sample. This can significantly improve sampling efficiency and avoid the high safety risks of traditional manual sampling that requires wading operations.

[0006] In the aforementioned UAV water sampler for river water sampling, the sampling tube water sampling mechanism includes a water injection plate with a water injection cavity at the top of the water sampling tank. The bottom of the water injection plate is provided with several water injection pipes that communicate with the water injection cavity. The several water injection pipes are arranged in an array and correspond one-to-one with the sampling tube assembly. The side wall of the water injection plate is provided with a water sampling pipe that passes through the water sampling tank. The water sampling pipe is provided with a one-way valve.

[0007] The water intake tank can perform sampling operations for multiple sampling tube components with a single descent, which can significantly reduce the number of times the water intake tank is raised and lowered, and significantly improve sampling efficiency. In addition, the water intake check valve can play a protective role, ensuring that the sampling tube components are isolated from the outside after sampling, which can effectively prevent external pollutants from entering.

[0008] In the aforementioned drone water sampler for river water sampling, the sampling tube assembly includes a tube body, the upper end of which is provided with a plug, and the plug is provided with a positioning hole that cooperates with the water injection tube.

[0009] The water injection tube passes through the positioning hole of the plug. The positioning hole serves a positioning function and seals with the water injection tube to achieve precise connection between the tube body and the water injection tube. This ensures that the water sample is accurately injected into the tube body and prevents water sample leakage or cross-contamination.

[0010] In the aforementioned drone water sampler for river water sampling, a pipe positioning structure is provided between the pipe body and the water sampling box.

[0011] The tube positioning structure serves to fix the tube in place, preventing it from shaking or shifting during the movement of the water collection tank. This avoids sample leakage and damage caused by shaking or shifting, ensuring the stability of the tube.

[0012] In the aforementioned UAV water sampler for river water sampling, the tube positioning structure includes a positioning sleeve fitted at the bottom of the tube body, an axial groove that slides with the positioning sleeve on the inner bottom of the water intake tank, and an axial adjustment component that can adjust the axial position of the positioning sleeve in the axial groove between the positioning sleeve and the inner bottom of the water intake tank. When the positioning sleeve moves axially downward in the axial groove, the plug gradually separates from the water injection pipe.

[0013] The tube is easy to install and remove, with high efficiency, which can further improve sampling efficiency. The tube is also firmly fixed, which can prevent sample leakage and damage caused by shaking and displacement of the tube.

[0014] In the aforementioned UAV water sampler for river water sampling, the axial adjustment component includes an adjustment plate arranged on the outer periphery of the positioning sleeve and distributed circumferentially along the positioning sleeve. Several springs are provided between the adjustment plate and the bottom of the water intake tank. The two ends of the springs are respectively connected to the bottom of the water intake tank and the bottom of the adjustment plate. When the spring is in its natural state, the plug cooperates with the water injection pipe and the positioning sleeve is located in the axial groove.

[0015] The tube is easy to install and remove, and its high efficiency can further improve sampling efficiency. In addition, the tube is firmly fixed, which can prevent sample leakage and damage caused by shaking and displacement of the tube.

[0016] In the aforementioned drone water sampler for river water sampling, a filter screen is provided on the outer end of the water sampling pipe.

[0017] The filter screen can isolate particulate impurities and floating objects in the water, preventing them from entering the water injection chamber and sampling tube assembly, thus avoiding clogging problems.

[0018] In the aforementioned drone water sampler for river water sampling, the water tank lifting device includes a rotating shaft installed in a fixed frame. A rotating driver is provided on the inner side wall of the fixed frame. The output end of the rotating driver is connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the other inner side wall of the fixed frame through a bearing seat. A roller is provided on the outer side of the rotating shaft, and a traction rope is wound on the roller. The outer end of the traction rope is connected to the top of the water tank.

[0019] The rotary drive can drive the rotating shaft to rotate, thereby driving the coaxial fixed roller to rotate. When the roller rotates to release the traction rope, the water intake tank descends into the water; when the roller rotates in the opposite direction to rewind the traction rope, the water intake tank rises and is retracted.

[0020] In the aforementioned drone water sampler for river water sampling, a box positioning structure is also provided between the fixed frame and the water sampling box.

[0021] The tank positioning structure plays a role in positioning and fixing the water intake tank after it is raised, which can prevent the water intake tank from shaking or shifting during the movement, and effectively ensure the stability of the water intake tank, thereby ensuring the stability of the sampling tube assembly.

[0022] In the aforementioned UAV water sampler for river water sampling, the housing positioning structure includes a positioning plate set at the bottom of the fixed frame, a positioning groove is provided on the positioning plate, a positioning block is provided at the top of the water sampling housing that can cooperate with the positioning groove, the outer end of the traction rope passes through the positioning groove and is connected to the top of the positioning block, and an easy-entry rounded corner is provided on the groove opening at the bottom of the positioning groove.

[0023] During the process of the water intake tank rising and being retracted, the positioning block at the top of the water intake tank enters from the opening of the positioning groove and gradually moves upward within the positioning groove until it is fully engaged with the positioning groove. The positioning block and the positioning groove work together to fix the water intake tank, preventing the water intake tank from shaking or shifting during movement. The easy-entry rounded corner at the bottom of the positioning groove facilitates the entry of the positioning block.

[0024] Compared with existing technologies, the advantages of this invention are: 1. A single flight of the drone can simultaneously sample multiple sampling tube components, overcoming the efficiency bottleneck of insufficient sampling volume in a single flight of existing drones, which can only collect a single sample. 2. It can significantly reduce the number of times the water tank is raised and lowered, improving sampling efficiency. 3. The sampling tube components are easy to install and remove, with high efficiency, and the components are firmly fixed, effectively preventing sample leakage and damage caused by shaking and displacement. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure provided by this utility model; Figure 2 This is a sectional view of the water intake tank. Figure 3 This is a schematic diagram of the structure when the plug is completely separated from the water injection pipe; Figure 4 yes Figure 2 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the box positioning structure.

[0026] In the diagram, the components are: 1. UAV; 2. Fixing frame; 3. Support angle; 4. Water intake tank; 5. Water intake tank lifting device; 6. Sealed tank door; 7. Sampling tube assembly; 8. Sampling tube water intake mechanism; 9. Water injection chamber; 10. Water injection plate; 11. Water injection pipe; 12. Water intake one-way valve; 13. Pipe body; 14. Plug; 15. Positioning hole; 16. Pipe body positioning structure; 17. Positioning sleeve; 18. Axial slide groove; 19. Axial adjustment assembly; 20. Adjustment plate; 21. Spring; 22. Filter screen; 23. Rotating shaft; 24. Rotating driver; 25. Bearing seat; 26. Wire roller; 27. Traction rope; 28. Box positioning structure; 29. ​​Positioning plate; 30. Positioning groove; 31. Positioning block; 32. Easy-entry rounded corner; 33. Detailed Implementation

[0027] like Figures 1-3 As shown, a drone water sampler for river water sampling includes a drone 1. The drone 1 has a fixed frame 2 at its bottom. Supporting corners 3 are provided on both sides of the bottom end of the fixed frame 2. A water sampling tank 4 is provided below the fixed frame 2. The water sampling tank 4 is connected to the fixed frame 2 through a water sampling tank lifting device 5. A sealed door 6 is provided on the water sampling tank 4. Several sampling tube assemblies 7 are provided inside the water sampling tank 4. A sampling tube water sampling mechanism 8 is also provided on the water sampling tank 4.

[0028] In this invention, once the drone 1 flies above the sampling point, the water tank lifting device 5 operates to lower the water tank 4, causing it to sink below the water surface. Then, the sampling tube water collection mechanism 8 operates to inject water samples into each sampling tube assembly 7. After sampling is completed, the water tank lifting device 5 retracts the water tank 4, and the drone 1 flies back to the ground. The operator then takes out the sampling tube assembly 7 by opening the sealed box door 6.

[0029] The drone 1 can simultaneously sample multiple sampling tube components 7 in a single flight, overcoming the efficiency bottleneck of insufficient sampling volume in a single flight of existing drones, which can only collect a single sample and has insufficient sampling volume. It can significantly improve sampling efficiency and avoid the high safety risks of traditional manual sampling that requires wading operations.

[0030] Specifically, combining Figure 2 and Figure 3 As shown, the sampling tube water intake mechanism 8 includes a water injection plate 10 with a water injection cavity 9 at the top of the water intake tank 4. The bottom end of the water injection plate 10 is provided with a plurality of water injection pipes 11 that are connected to the water injection cavity 9. The plurality of water injection pipes 11 are arranged in an array and correspond one-to-one with the sampling tube assembly 7. The side wall of the water injection plate 10 is provided with a water intake pipe 12 that passes through the water intake tank 4. The water intake pipe 12 is provided with a water intake one-way valve 13.

[0031] After water is introduced into the water intake tank 4, the one-way valve 13 is opened, and the water sample enters the water injection chamber 9 through the water intake pipe 12. Then, the water sample in the water injection chamber 9 is injected into the corresponding sampling tube assembly 7 through the array of water injection pipes 11. After the water injection is completed, the one-way valve 13 is closed, forming a physical barrier to prevent the water sample in the sampling tube assembly 7 from flowing back into the river.

[0032] The sampling operation of multiple sampling tube assemblies 7 can be achieved by a single descent of the water intake tank 4, which can greatly reduce the number of times the water intake tank 4 is raised and lowered, and significantly improve the sampling efficiency. In addition, the water intake one-way valve 13 can play a protective role, ensuring that the sampling tube assembly 7 is isolated from the outside after sampling, which can effectively prevent external pollutants from entering.

[0033] Specifically, combining Figure 2 and Figure 3 As shown, the sampling tube assembly 7 includes a tube body 14, with a plug 15 at the upper end of the tube body 14, and a positioning hole 16 on the plug 15 that cooperates with the water injection tube 11.

[0034] The water injection pipe 11 passes through the positioning hole 16 of the plug 15. The positioning hole 16 serves a positioning function and seals with the water injection pipe 11 to achieve precise docking between the pipe body 14 and the water injection pipe 11. This ensures that the water sample is accurately injected into the pipe body 14 and prevents water sample leakage or cross-contamination.

[0035] Specifically, combining Figures 2-4As shown, a pipe positioning structure 17 is provided between the pipe body 14 and the water intake tank 4; the pipe positioning structure 17 includes a positioning sleeve 18 sleeved on the bottom end of the pipe body 14, and an axial groove 19 that slides with the positioning sleeve 18 on the inner bottom end of the water intake tank 4. An axial adjustment component 20 that can adjust the axial position of the positioning sleeve 18 in the axial groove 19 is provided between the positioning sleeve 18 and the inner bottom end of the water intake tank 4. When the positioning sleeve 18 moves axially downward in the axial groove 19, the plug 15 gradually separates from the water injection pipe 11.

[0036] The positioning sleeve 18 is fitted onto the bottom end of the tube body 14 to position and fix the tube body 14. The positioning sleeve 18 is moved axially downward in the axial groove 19 by the axial adjustment component 20, so that the plug 15 is gradually separated from the water injection pipe 11. After the plug 15 is completely separated from the water injection pipe 11, the tube body 14 can be removed. When the tube body 14 needs to be installed, the tube body 14 is first inserted into the positioning sleeve 18, and then the positioning sleeve 18 is moved axially upward in the axial groove 19 by the axial adjustment component 20, so that the positioning hole 16 of the plug 15 gradually engages with the water injection pipe 11. The positioning and installation of the tube body 14 is completed when the plug 15 is fully engaged with the water injection pipe 11.

[0037] The tube body 14 is easy to install and remove, with high efficiency, which can further improve the sampling efficiency. In addition, the tube body 14 is fixed firmly, which can prevent sample leakage and damage caused by shaking and displacement of the tube body 14.

[0038] Specifically, combining Figures 2-4 As shown, the axial adjustment assembly 20 includes an adjustment plate 21 arranged on the outer periphery of the positioning sleeve 18 and distributed circumferentially along the positioning sleeve 18. Several springs 22 are provided between the adjustment plate 21 and the bottom of the water intake tank 4. The two ends of the springs 22 are respectively connected to the bottom of the water intake tank 4 and the bottom of the adjustment plate 21. When the springs 22 are in the natural state, the plug 15 cooperates with the water injection pipe 11 and the positioning sleeve 18 is located in the axial groove 19.

[0039] When the adjusting plate 21 is pressed down, the spring 22 is compressed, and the positioning sleeve 18 moves axially downward in the axial groove 19. The plug 15 gradually separates from the water injection pipe 11 until the pipe body 14 can be removed. When installing the pipe body 14, first press down the adjusting plate 21, and then insert the pipe body 14 into the positioning sleeve 18. The compressed spring 22 releases elastic potential energy, which can drive the positioning sleeve 18 to move axially upward in the axial groove 19. The plug 15 gradually engages with the water injection pipe 11. The spring 22 is in its natural state, the plug 15 and the water injection pipe 11 are fully engaged, and the positioning sleeve 18 is located in the axial groove 19 to prevent the positioning sleeve 18 from disengaging from the axial groove 19.

[0040] The tube body 14 is easy to install and remove, and its high efficiency can further improve the sampling efficiency. In addition, the tube body 14 is fixed firmly, which can prevent sample leakage and damage caused by shaking and displacement of the tube body 14.

[0041] Preferably, combined with Figure 3 As shown, a filter screen 23 is provided on the outer end of the water intake pipe 12.

[0042] The filter screen 23 on the outer end of the water intake pipe 12 can isolate particulate impurities and floating objects in the water, preventing them from entering the water injection chamber 9 and the sampling pipe assembly 7, thus avoiding blockage problems.

[0043] Specifically, combining Figure 1 and Figure 2 As shown, the water tank lifting device 5 includes a rotating shaft 24 installed in the fixed frame 2. A rotating driver 25 is provided on the inner side wall of the fixed frame 2. The output end of the rotating driver 25 is connected to one end of the rotating shaft 24. The other end of the rotating shaft 24 is connected to the other inner side wall of the fixed frame 2 through a bearing seat 26. A roller 27 is provided on the outer side of the rotating shaft 24. A traction rope 28 is wound on the roller 27. The outer end of the traction rope 28 is connected to the top of the water tank body 4.

[0044] The operation of the rotary driver 25 can drive the rotary shaft 24 to rotate, thereby driving the coaxially fixed wire roller 27 to rotate. When the wire roller 27 rotates to release the traction rope 28, the water intake tank 4 descends into the water; when the wire roller 27 rotates in the opposite direction to rewind the traction rope 28, the water intake tank 4 rises and is retracted.

[0045] Specifically, combining Figure 1 , Figure 2 and Figure 5 As shown, a tank positioning structure 29 is also provided between the fixed frame 2 and the water tank 4; the tank positioning structure 29 includes a positioning plate 30 set at the bottom of the fixed frame 2, a positioning groove 31 is provided on the positioning plate 30, a positioning block 32 that can cooperate with the positioning groove 31 is provided at the top of the water tank 4, the outer end of the traction rope 28 passes through the positioning groove 31 and is connected to the top of the positioning block 32, and an easy-entry arc angle 33 is provided on the groove opening at the bottom of the positioning groove 31.

[0046] The positioning groove 31 is located in the center of the positioning plate 30.

[0047] During the process of the water intake tank 4 rising and being retracted, the positioning block 32 at the top of the water intake tank 4 enters from the opening of the positioning groove 31 and gradually moves upward within the positioning groove 31 until it is fully engaged with the positioning groove 31. The positioning block 32 and the positioning groove 31 work together to position and fix the water intake tank 4, which can prevent the water intake tank 4 from shaking or shifting during the movement and can effectively ensure the stability of the water intake tank 4. The easy-entry arc angle 33 on the bottom opening of the positioning groove 31 makes it easy for the positioning block 32 to enter.

[0048] The working principle of this utility model is as follows: When the drone 1 flies to the sampling point, the driver 25 drives the drive roller 27 to rotate and release the traction rope 28, and the water tank 4 sinks below the water surface; after the water tank 4 is filled with water, the water intake check valve 13 opens, and the water sample enters the water injection chamber 9 through the water intake pipe 12 and is injected into the corresponding sampling tube assembly 7 through the array of water injection pipes 11. After the water injection is completed, the water intake check valve 13 closes; then the driver 25 drives the drive roller 27 to rotate in the opposite direction to rewind the traction rope 28, and the water tank 4 rises and is retrieved; after the drone 1 flies back to the ground, the operator opens the sealed box door 6, then presses down the adjustment plate 21, and removes the tube body 14 after the plug 15 is completely separated from the water injection pipe 11.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0050] Although this article frequently uses terms such as UAV 1, fixed frame 2, support angle 3, water intake tank 4, water intake tank lifting device 5, sealed tank door 6, sampling tube assembly 7, sampling tube water intake mechanism 8, water injection chamber 9, water injection plate 10, water injection pipe 11, water intake pipe 12, water intake check valve 13, pipe body 14, plug 15, positioning hole 16, pipe body positioning structure 17, positioning sleeve 18, axial slide groove 19, axial adjustment assembly 20, adjustment plate 21, spring 22, filter screen 23, rotating shaft 24, rotating driver 25, bearing seat 26, wire roller 27, traction rope 28, tank positioning structure 29, positioning plate 30, positioning groove 31, positioning block 32, easy-entry arc angle 33, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

Claims

1. A drone water sampler for river water sampling, comprising a drone (1), wherein the drone (1) is provided with a fixed frame (2) at its bottom, and support corners (3) are respectively provided on both sides of the bottom end of the fixed frame (2), characterized in that, The fixed frame (2) is provided with a water collection tank (4) below it. The water collection tank (4) is connected to the fixed frame (2) through a water collection tank lifting device (5). The water collection tank (4) is provided with a sealed door (6). Several sampling tube assemblies (7) are provided inside the water collection tank (4). The water collection tank (4) is also provided with a sampling tube water collection mechanism (8).

2. The UAV water sampler for river water sampling according to claim 1, characterized in that, The sampling tube water intake mechanism (8) includes a water injection plate (10) with a water injection cavity (9) at the top of the water intake tank (4). The bottom end of the water injection plate (10) is provided with a plurality of water injection pipes (11) that are connected to the water injection cavity (9). The plurality of water injection pipes (11) are arranged in an array and correspond one-to-one with the sampling tube assembly (7). The side wall of the water injection plate (10) is provided with a water intake pipe (12) that passes through the water intake tank (4). The water intake pipe (12) is provided with a one-way valve (13).

3. The UAV water sampler for river water sampling according to claim 2, characterized in that, The sampling tube assembly (7) includes a tube body (14), and a plug (15) is provided at the upper end of the tube body (14). The plug (15) has a positioning hole (16) that cooperates with the water injection tube (11).

4. The UAV water sampler for river water sampling according to claim 3, characterized in that, A pipe positioning structure (17) is provided between the pipe body (14) and the water intake tank (4).

5. The UAV water sampler for river water sampling according to claim 4, characterized in that, The pipe positioning structure (17) includes a positioning sleeve (18) fitted on the bottom end of the pipe body (14). An axial groove (19) is provided on the inner bottom end of the water intake tank (4) to slide with the positioning sleeve (18). An axial adjustment component (20) is provided between the positioning sleeve (18) and the inner bottom end of the water intake tank (4) to adjust the axial position of the positioning sleeve (18) in the axial groove (19). When the positioning sleeve (18) moves axially downward in the axial groove (19), the plug (15) and the water injection pipe (11) gradually separate.

6. The UAV water sampler for river water sampling according to claim 5, characterized in that, The axial adjustment assembly (20) includes an adjustment plate (21) arranged on the outer periphery of the positioning sleeve (18) and distributed circumferentially along the positioning sleeve (18). Several springs (22) are provided between the adjustment plate (21) and the bottom of the water intake tank (4). The two ends of the springs (22) are respectively connected to the bottom of the water intake tank (4) and the bottom of the adjustment plate (21). When the springs (22) are in their natural state, the plug (15) cooperates with the water injection pipe (11) and the positioning sleeve (18) is located in the axial groove (19).

7. The UAV water sampler for river water sampling according to claim 2, characterized in that, A filter screen (23) is provided on the outer end of the water intake pipe (12).

8. The unmanned aerial vehicle (UAV) water sampler for river water sampling according to any one of claims 1-7, characterized in that, The water tank lifting device (5) includes a rotating shaft (24) installed in a fixed frame (2). A rotating driver (25) is provided on the inner wall of the fixed frame (2). The output end of the rotating driver (25) is connected to one end of the rotating shaft (24). The other end of the rotating shaft (24) is connected to the other inner wall of the fixed frame (2) through a bearing seat (26). A roller (27) is provided on the outer side of the rotating shaft (24). A traction rope (28) is wound on the roller (27). The outer end of the traction rope (28) is connected to the top of the water tank body (4).

9. The UAV water sampler for river water sampling according to claim 8, characterized in that, The fixed frame (2) and the water intake tank (4) are also provided with a tank positioning structure (29).

10. The UAV water sampler for river water sampling according to claim 9, characterized in that, The box positioning structure (29) includes a positioning plate (30) set at the bottom of the fixed frame (2), a positioning groove (31) is provided on the positioning plate (30), a positioning block (32) is provided at the top of the water intake box (4) that can cooperate with the positioning groove (31), the outer end of the traction rope (28) passes through the positioning groove (31) and is connected to the top of the positioning block (32), and an easy-entry rounded corner (33) is provided on the groove opening at the bottom of the positioning groove (31).

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