Water body detection sampling device

Abstract

The application discloses a water body detection sampling device, which comprises a support frame, a sampling cover box assembly located below the support frame, a lifting driving assembly connected with the support frame to provide a stable water environment for sampling, a sampling detection assembly arranged above the support frame and extending into the sampling cover box assembly, a propelling assembly connected with the support frame to provide power for the device to walk underwater, and a moving auxiliary assembly connected with the lower ends of the two sides of the support frame to assist the device to walk on the water bottom. The sampling cover box assembly comprises a cover box, and one mounting frame is connected with each side of the cover box to connect the lifting driving assembly. The water body detection sampling device can realize in-situ real-time detection underwater, and has the advantages of high integration, high efficiency and high data authenticity.

Description

Technical Field

[0001] This invention relates to the field of water body testing, specifically to a water body testing and sampling device. Background Technology

[0002] Currently, in fields such as water environment monitoring, pollution source investigation, water quality assessment, and water treatment process efficiency analysis, in-situ detection and fixed-point sampling of physical, chemical, and biological indicators of specific water areas or water bodies surrounding underwater facilities are crucial tasks. With the rapid development of underwater robot technology, utilizing them as mobile and operational platforms, equipped with specialized detection and sampling equipment, to conduct automated operations in large-scale, deep-water, or hazardous areas has become an important development direction for the industry.

[0003] In existing technologies, water detection and sampling for underwater robots typically employ a modular or single-function design. A common practice is to use a robotic arm to grasp or securely mount a separate, encapsulated sampling bottle or a simple sensor probe onto the robot.

[0004] These approaches have significant shortcomings: First, most equipment separates the sampling and testing processes. After sampling, the water sample must be recovered to the water surface or the mother ship before analysis can be performed, resulting in poor real-time performance. Furthermore, errors or contamination can easily be introduced during the water sample transfer and storage process, which is particularly unfavorable for measuring volatile and easily deteriorated indicators.

[0005] Secondly, traditional fixed-point sampling devices are often simple in structure and have fixed sampling points, making it difficult to perform layered and multiple samplings of small areas at different depths or at the same horizontal position of the same vertical water column without moving the robot itself, resulting in low spatial resolution.

[0006] Furthermore, when sampling pipelines are in cold waters or during long-term operations, residual water samples inside may freeze or grow biofilm, affecting the purity and representativeness of subsequent samples, and cleaning the pipelines after they become clogged is difficult.

[0007] Therefore, a water body detection and sampling device is proposed to address the above problems. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of existing water body detection and sampling equipment, realize in-situ real-time underwater detection, and have the advantages of high integration, high efficiency and high data authenticity.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a water body detection and sampling device, comprising: Support frame; The sampling enclosure assembly is located below the support frame and is connected to the support frame via a lifting drive assembly to provide a stable water environment for sampling. A sampling and detection assembly is disposed above the support frame, with the sampling end extending into the sampling hood assembly; A propulsion component, connected to the support frame, is used to provide power for the device to move underwater. The mobile assistance components are connected to the lower ends of both sides of the support frame to assist the equipment in moving underwater.

[0010] Preferably, the sampling hood assembly includes: A housing, with a mounting bracket connected to each side for connecting the lifting drive assembly.

[0011] Preferably, the sampling and detection component includes: The sampling tube is fixed on the support frame, with the sampling end extending into the enclosure; the upper end is sequentially connected to a heating block for heating the water, a telescopic tube, a detection box for analyzing the composition of the generated gas, and a nozzle for spraying the gas. A sampling drive assembly is movably connected to the middle of the sampling tube.

[0012] Preferably, the sampling driving component includes: The second hydraulic cylinder is connected to the sampling tube via a fixing plate. The first piston rod at the output end of the second hydraulic cylinder is connected to a sleeve, which is sleeved on the outside of the sampling tube. The sampling tube has a first water inlet hole; the sleeve has a second water inlet hole, and when the sleeve slides relative to the sampling tube, the first water inlet hole and the second water inlet hole can be aligned and communicate with each other.

[0013] Preferred options also include: A first motor is connected to the lower end of the fixed plate. The output end of the first motor is connected to a rotating shaft. A mounting column is connected to the side wall of the rotating shaft, and a top cover for sealing the second water inlet is connected to the mounting column.

[0014] Preferably, the lifting drive assembly includes: The first hydraulic cylinder is connected to the inner wall of the support frame via a positioning plate; the second piston rod at the output end of the first hydraulic cylinder is connected to the mounting frame.

[0015] Preferably, the propulsion component includes: A third motor is mounted on the support frame, with its output end facing upwards and connected to a second motor. The output end of the second motor is connected to a propeller.

[0016] Preferably, the mobility assistance component includes: Multiple rollers are mounted on a bracket, the upper end of which is connected to the lower end of the side wall of the support frame.

[0017] Preferably, it further includes a stabilizing component disposed on the front side wall of the enclosure; the stabilizing component includes a mounting plate, the front side wall of the mounting plate is connected to a U-shaped locking block, and the inner side of the locking block is connected to a support rod; the front side wall of the enclosure is provided with a sliding groove, and a slider is connected to the side wall of the mounting plate and slidably connected in the sliding groove.

[0018] Preferably, the upper port of the enclosure is connected to a screen to block debris.

[0019] Compared with existing technologies, the beneficial effects of this invention are as follows: This water body detection and sampling device integrates fixed-point sampling, in-situ heating, gas detection, and sample sealing functions into one unit, realizing real-time in-situ underwater detection without the need to recover water samples to the surface or mother ship for analysis, significantly improving detection efficiency and data timeliness. On the one hand, the sampling tube extends directly into the enclosed sampling space, and the water sample is immediately heated and evaporated and analyzed for gas composition inside the device after extraction, without any water sample transfer step. This fundamentally avoids volatilization, deterioration, pollution, or measurement errors that may occur during water sample transfer and storage. It is particularly suitable for detecting water quality indicators that are volatile, easily degradable, and sensitive to environmental changes, greatly improving the authenticity and reliability of the detection data. On the other hand, the entire testing process is completed in a closed underwater environment. In conjunction with the terminal nozzle and the underwater robot's olfactory sensor, it can simultaneously complete the auxiliary identification of water quality odors, realize multi-dimensional detection of a single device, and its functional integration is far higher than that of traditional single-function sampling or testing devices. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is an isometric view of the water body detection and sampling device of the present invention; Figure 2 This is a detailed diagram showing the connection of the barrier net of the present invention.

[0021] In the diagram: 1. First hydraulic cylinder; 2. Positioning plate; 3. First motor; 4. Sampling tube; 5. Fixing plate; 6. Second hydraulic cylinder; 7. First piston rod; 8. Sleeve; 9. Rotating shaft; 10. Top cover; 11. Mounting column; 12. Heating block; 13. Telescopic tube; 14. Detection box; 15. Nozzle; 16. Propeller; 17. Second motor; 18. Third motor; 19. Support frame; 20. Second piston rod; 21. Mounting frame; 22. Cover box; 23. Roller; 24. Bracket; 25. Mounting plate; 26. Clamping block; 27. Support rod; 28. Baffle net. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. like Figure 1-2 As shown, a water body detection and sampling device includes a support frame 19, a sampling hood assembly, a sampling and detection assembly, a propulsion assembly, and a movement auxiliary assembly. The sampling hood assembly is located below the support frame 19 and is connected to the support frame 19 via a lifting drive assembly to provide a stable water environment for sampling. The sampling and detection assembly is located above the support frame 19, with its sampling end extending into the sampling hood assembly. The propulsion assembly is connected to the support frame 19 to provide power for the device to move underwater. The movement auxiliary assembly is connected to the lower ends of both sides of the support frame 19 to assist the device in moving underwater.

[0023] Specifically, the sampling enclosure assembly includes an enclosure 22, with a mounting bracket 21 connected to each side of the enclosure 22 for connecting to the lifting drive assembly. A baffle 28 for blocking debris is connected to the upper port of the enclosure 22. The lifting drive assembly includes a first hydraulic cylinder 1, which is connected to the inner wall of the support frame 19 via a positioning plate 2; the second piston rod 20 at the output end of the first hydraulic cylinder 1 is connected to the mounting bracket 21.

[0024] Specifically, the sampling enclosure assembly, combined with the stabilizing components, forms an independent and enclosed sampling water environment, avoiding the impact of external water flow and impurities on the sample from the source. After the enclosure 22 is lowered to the bottom of the water via a lifting mechanism, it can completely cover the target detection area, isolating it from surrounding flowing water and floating debris, ensuring that the collected water sample is the in-situ water of the target point, and maximizing the purity and representativeness of the sample. A baffle structure is added to the top of the enclosure, which can effectively intercept large particles of impurities, aquatic plants and other foreign objects on the bottom of the water, preventing impurities from entering the sampling pipeline or enclosed space, preventing equipment jamming and pipeline blockage. At the same time, in conjunction with the slider and groove structure of the stabilizing components, it ensures that the enclosure is raised and lowered vertically and smoothly without deviation or tilting, further improving the sampling positioning accuracy and adapting to harsh operating environments with complex underwater terrain and large water disturbances.

[0025] Specifically, the sampling and detection assembly includes a sampling tube 4, which is fixed on the support frame 19, with the sampling end extending into the enclosure 22; the upper end is sequentially connected to a heating block 12 for heating the water, a telescopic tube 13, a detection box 14 for analyzing the composition of the generated gas, and a nozzle 15 for spraying gas; and a sampling drive assembly, which is movably connected to the middle of the sampling tube 4.

[0026] Specifically, the sampling drive assembly includes a second hydraulic cylinder 6, which is connected to the sampling tube 4 via a fixing plate 5. The first piston rod 7 at the output end of the second hydraulic cylinder 6 is connected to a sleeve 8, which is sleeved on the outside of the sampling tube 4. A first water inlet is provided on the sampling tube 4, and a second water inlet is provided on the sleeve 8. When the sleeve 8 slides relative to the sampling tube 4, the first water inlet and the second water inlet can be aligned and communicate with each other.

[0027] Specifically, it also includes a first motor 3, which is connected to the lower end of the fixed plate 5. The output end of the first motor 3 is connected to the rotating shaft 9. The side wall of the rotating shaft 9 is connected to the mounting column 11, and the mounting column 11 is connected to the top cover 10 for sealing the second water inlet.

[0028] Specifically, the inlet is sealed immediately after each sampling to prevent the continuous entry of external water, reduce water sample residue in the pipeline, avoid the growth of biofilm from long-term stagnation of residual water, and reduce the risk of pipeline blockage. The integrated heating block structure not only enables water sample evaporation detection but also provides moderate heating to the inside of the pipeline. When operating in cold water, it effectively prevents residual water sample from freezing and clogging the pipeline, making it suitable for special environments such as low-temperature deep water areas and cold water areas. Thirdly, all motors, hydraulic cylinders, and electrical components adopt a waterproof sealing structure, which can withstand underwater high pressure and humid and harsh environments. The equipment has strong overall sealing and good durability, which can meet the requirements of long-term continuous automated underwater operation. Subsequent cleaning and maintenance are convenient, which greatly reduces the equipment operation and maintenance costs.

[0029] Specifically, the propulsion assembly includes a third motor 18, which is mounted on a support frame 19. The output end of the third motor 18 is upward-facing and connected to a second motor 17. The output end of the second motor 17 is connected to a propeller 16. The motion assistance assembly includes multiple rollers 23, which are mounted on a bracket 24. The upper end of the bracket 24 is connected to the lower end of the side wall of the support frame 19.

[0030] Specifically, it is equipped with dedicated propulsion and mobility assistance components to further enhance mobility and positioning accuracy. The propulsion component can adjust the propeller direction and thrust through dual-motor linkage, and together with the bottom roller-type mobility assistance component, it can achieve free navigation in the water and stable underwater walking, accurately reaching various complex detection points. Compared with the limitations of traditional equipment that requires manual assistance or fixed installation, this equipment can operate in deep water areas, heavily polluted areas, and dangerous waters that are inaccessible to personnel, expanding the scope and scenarios of water body detection. It is suitable for various scenarios such as large-scale water body surveys, precise pollution source investigation, and full-process monitoring of water treatment process efficiency, which is in line with the industry development trend of underwater automated monitoring.

[0031] Specifically, it also includes a stabilizing component, which is set on the front side wall of the housing 22; the stabilizing component includes a mounting plate 25, the front side wall of the mounting plate 25 is connected to a U-shaped locking block 26, and the inner side of the locking block 26 is connected to a support rod 27; the front side wall of the housing 22 is provided with a sliding groove, and a slider that is slidably connected in the sliding groove is connected to the side wall of the mounting plate 25. Specifically, the equipment is fixedly connected to the underwater robot body via support frame 19. After ensuring structural stability, it is launched into the water along with the underwater robot and enters the target operating area. All motors, hydraulic cylinders, and electrical components adopt waterproof and sealed structures to adapt to the high-pressure and humid underwater environment.

[0032] Start the third motor 18 to drive the second motor 17 and propeller 16 to rotate as a whole, and adjust the propulsion direction of propeller 16; simultaneously start the second motor 17 to drive propeller 16 to rotate at high speed to generate thrust, which, together with the rollers 23 on the bracket 24, enables the equipment to navigate in water or walk underwater, and move precisely to the target detection point.

[0033] When in use, after reaching the designated position, the first hydraulic cylinder 1 is activated, driving the second piston rod 20 to extend and retract downwards, and the cover box 2 is driven to descend smoothly through the mounting bracket 21; during the descent of the cover box 22, the slider on the back of the mounting plate 25 slides in the slide groove to ensure that the cover box 22 rises and falls vertically without deviation. When the bottom of the enclosure 22 contacts the bottom of the water, it completely covers the target area of ​​water, forming a relatively independent closed detection space to avoid interference from external water bodies; the baffle 28 on the top of the enclosure 22 can intercept large particles of impurities on the bottom of the water to prevent them from entering the closed space and interfering with the detection.

[0034] Start the second hydraulic cylinder 6 to drive the first piston rod 7 to extend and retract, causing the sleeve 8 to slide on the sampling tube 4; when the second water inlet on the sleeve 8 is aligned with the first water inlet on the sampling tube 4, the water in the cover box 22 enters the sampling tube 4. After sampling is completed, the first motor 3 is started, driving the rotating shaft 9 to rotate. The top cover 10 is rotated through the mounting column 11, so that the top cover 10 completely covers the second water inlet hole on the sleeve 8. The rubber sleeve on the surface of the top cover 10 fits tightly with the through hole to form a seal, preventing water sample leakage or external water from mixing in.

[0035] The heating block 12 is activated, which heats the water sample in the sampling tube 4, causing the water sample to evaporate and produce volatile gases. The gases are then sealed and transmitted to the detection box 14 through the telescopic tube 13. The gas detector in the detection box 14 analyzes the gas composition to determine the water pollution status. Some of the gases can be sprayed out through the nozzle 15, which, together with the olfactory sensor on the underwater robot, helps to determine the water odor problem.

[0036] After the test is completed, the first hydraulic cylinder 1 is activated in reverse to drive the second piston rod 20 to retract, which in turn raises the cover box 22; the propulsion assembly is activated to move the equipment to the next test point, or it returns to the surface with the underwater robot.

[0037] This water sampling and testing equipment integrates fixed-point sampling, in-situ heating, gas detection, and sample sealing functions into one unit, enabling real-time in-situ underwater testing without the need to retrieve water samples to the surface or mother ship for analysis, significantly improving testing efficiency and data timeliness. Firstly, the sampling tube 4 extends directly into the enclosed sampling space, allowing for immediate heating, evaporation, and gas composition analysis within the equipment after water sample extraction. There is no water sample transfer step, fundamentally avoiding volatilization, deterioration, contamination, or measurement errors that can occur during water sample transfer and storage. It is particularly suitable for detecting volatile, easily degradable, and environmentally sensitive water quality indicators, greatly improving the authenticity and reliability of the test data. Secondly, the entire testing process is completed in a sealed underwater environment. Combined with the terminal nozzle and underwater robot olfactory sensor, it can simultaneously perform auxiliary odor detection, achieving multi-dimensional testing with a single device. Its functional integration level far exceeds that of traditional single-function sampling or testing equipment.

[0038] The equipment is equipped with a lifting drive component, which can independently control the vertical lifting of the sampling hood 22 via the first hydraulic cylinder 1. This allows for precise sampling at different depth levels of the same vertical water column without moving the underwater robot itself. Simultaneously, it is equipped with a controllable sampling drive component, which uses the second hydraulic cylinder 6 to regulate the opening and closing of the water inlet holes of the sleeve and sampling tube. Combined with the sealing top cover, it achieves rapid sealing after a single sampling, enabling multiple repeated samplings within the same small horizontal area. This meets the refined requirements of gradient water quality monitoring and stratified water quality analysis, completely solving the problems of limited sampling range and low spatial resolution of traditional equipment. It is suitable for multi-point and multi-level in-situ detection operations in complex waters.

[0039] The equipment has a compact and reasonable overall structure, with clear division of labor and smooth connection between modules. The entire process of lifting, sampling, sealing, testing, and propulsion can be completed automatically through the electronic control system, eliminating the need for manual underwater operation and reducing the difficulty of operation and labor costs. The components are firmly connected, easy to disassemble and maintain, and can be quickly adapted to different models of underwater robot platforms, demonstrating strong versatility. The fully automated closed-loop operation reduces human error and further improves the standardization and stability of the testing operation, making its overall practicality and market application value significant.

[0040] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A water body detection and sampling device, characterized in that, include: Support frame (19); The sampling enclosure assembly is located below the support frame (19) and is connected to the support frame (19) via a lifting drive assembly to provide a stable water environment for sampling. A sampling and detection assembly is disposed above the support frame (19), with the sampling end extending into the sampling hood assembly; A propulsion assembly, connected to the support frame (19), is used to provide power for the device to move underwater; The mobile auxiliary components are connected to the lower ends of both sides of the support frame (19) to assist the equipment in moving underwater.

2. The water body detection and sampling equipment according to claim 1, characterized in that, The sampling hood assembly includes: Cover box (22), with a mounting bracket (21) connected to each side of the cover box (22) for connecting the lifting drive assembly.

3. The water body detection and sampling equipment according to claim 2, characterized in that, The sampling and detection component includes: The sampling tube (4) is fixed on the support frame (19), and the sampling end extends into the cover box (22); the upper end is connected in sequence to the heating block (12) for heating the water, the telescopic tube (13), the detection box (14) for analyzing the composition of the generated gas, and the nozzle (15) for spraying gas. The sampling drive assembly is movably connected to the middle of the sampling tube (4).

4. The water body detection and sampling equipment according to claim 3, characterized in that, The sampling driving component includes: The second hydraulic cylinder (6) is connected to the sampling tube (4) via a fixing plate (5). The first piston rod (7) at the output end of the second hydraulic cylinder (6) is connected to the sleeve (8), which is sleeved on the outside of the sampling tube (4). The sampling tube (4) is provided with a first water inlet hole; the sleeve (8) is provided with a second water inlet hole. When the sleeve (8) slides relative to the sampling tube (4), the first water inlet hole and the second water inlet hole can be aligned and communicate with each other.

5. The water body detection and sampling equipment according to claim 4, characterized in that, Also includes: The first motor (3) is connected to the lower end of the fixed plate (5). The output end of the first motor (3) is connected to the rotating shaft (9). The side wall of the rotating shaft (9) is connected to the mounting column (11). The mounting column (11) is connected to the top cover (10) for sealing the second water inlet.

6. The water body detection and sampling equipment according to claim 2, characterized in that, The lifting drive component includes: The first hydraulic cylinder (1) is connected to the inner wall of the support frame (19) through the positioning plate (2); the second piston rod (20) at the output end of the first hydraulic cylinder (1) is connected to the mounting frame (21).

7. The water body detection and sampling equipment according to claim 1, characterized in that, The propulsion component includes: The third motor (18) is mounted on the support frame (19). The output end of the third motor (18) is set upward and connected to the second motor (17). The output end of the second motor (17) is connected to the propeller (16).

8. The water body detection and sampling equipment according to claim 1, characterized in that, The mobility assistance component includes: Multiple rollers (23) are mounted on a bracket (24), the upper end of which is connected to the lower end of the side wall of the support frame (19).

9. The water body detection and sampling equipment according to claim 2, characterized in that, It also includes a stabilizing component, which is disposed on the front side wall of the housing (22); the stabilizing component includes a mounting plate (25), the front side wall of the mounting plate (25) is connected to a U-shaped locking block (26), and the inner side of the locking block (26) is connected to a support rod (27); the front side wall of the housing (22) is provided with a sliding groove, and a slider is connected to the side wall of the mounting plate (25) and slidably connected in the sliding groove.

10. The water body detection and sampling equipment according to claim 2, characterized in that, The upper port of the enclosure (22) is connected to a screen (28) for blocking debris.

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