A precision deep water sampling device
Patent Information
- Application Number
- CN202521842917.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-08-28
AI Technical Summary
[0003]然而，现有的取样装置受水流冲击力、设备自身重量分布不均等因素影响，装置在下沉或上浮过程中易发生偏移，导致实际取样深度与预设深度产生较大偏差，使得采集的样品无法真实反映目标深度的水体特征，失去代表性，同时，取样过程中易受外界干扰，尤其是水流的持续冲击会导致样品罐产生剧烈晃动，破坏了样品的原始状态，严重影响样品纯度，对后续分析结果的准确性造成不利影响
该一种精准深水取样装置，通过设置通过安装架、线缆辊、减速箱与驱动电机的配合实现线缆稳定收放，为取样结构升降提供可靠动力，之后拼接式导向组件的导向杆对安装板的运动轨迹形成有效约束，减少水流冲击和设备自重不均导致的偏移，同时利用连接插杆、限位组件的协同作用，实现多个导向杆稳固拼接与灵活拆卸，之后激光位移编码器与压力传感器配合外部控制器，提升取样深度控制精度，流线型导流罩降低水流对取样罐的冲击力，减少晃动，整体结构协同作用，有效降低实际取样深度与预设深度的偏差，减少不同深度水体混合，保障样品的代表性和纯度。
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Figure CN224772653U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hydrological monitoring technology, and in particular to a precision deep-water sampling device. Background Technology
[0002] In fields such as marine ecological research, groundwater hydrological surveys, and geological resource exploration, accurate collection of water samples at specific depths in deep-sea environments is a prerequisite for subsequent analysis. Accurate sample data provides reliable evidence for studies such as marine environmental change monitoring, groundwater resource assessment, and seabed mineral resource exploration. Therefore, the performance of deep-sea sampling equipment directly affects the scientific validity and accuracy of research results. With the increasing demands for research precision, higher requirements are being placed on the stability and sampling accuracy of deep-sea sampling equipment in complex hydrological environments.
[0003] However, existing sampling devices are susceptible to displacement during sinking or floating due to factors such as water flow impact and uneven weight distribution. This results in a significant deviation between the actual sampling depth and the preset depth, making the collected samples unable to accurately reflect the water characteristics at the target depth and thus losing their representativeness. Furthermore, the sampling process is easily affected by external interference, especially the continuous impact of water flow, which can cause violent shaking of the sample container, damaging the original state of the sample and severely affecting its purity, which in turn negatively impacts the accuracy of subsequent analytical results. Utility Model Content
[0004] The purpose of this application is to provide a precise deep-water sampling device with advantages such as low deviation between the actual sampling depth and the preset depth, reduced mixing of water at different depths, and ensuring the representativeness and purity of the sample, thus solving the problems mentioned in the background art.
[0005] This application provides a precision deep-water sampling device with the following technical solution: It includes a base, on the upper side of which two mounting brackets are fixedly connected. A cable roller is rotatably connected between the two mounting brackets. A reduction gearbox is fixedly embedded on the outer side of one of the mounting brackets, and the output end of the reduction gearbox is fixedly connected to one end of the cable roller. A drive motor is fixedly mounted on the outer side of the reduction gearbox, and the output end of the drive motor is fixedly connected to the input end of the reduction gearbox. A spliced guide assembly is provided on the outer side of the base. The spliced guide assembly includes multiple guide rods, and one end of each guide rod is fixedly connected to two… Each of the two connecting rods has a semi-circular insertion hole on one side close to each other. Each guide rod has a limit component inside its other end. A laser displacement encoder is fixedly installed on the upper side of the base. A mounting plate is located below the base. One end of the cable roller is fixedly connected to the outside of the mounting plate. A streamlined flow guide is fixedly connected to the bottom surface of the mounting plate. A pressure sensor is fixedly installed on the upper side of the mounting plate. A sampling container is located inside the streamlined flow guide, and the outside of the sampling container is fixedly connected to the bottom surface of the mounting plate. An electromagnetic valve is fixedly installed on the outside of the sampling container.
[0006] By adopting the above technical solution, the stable winding and unwinding of the cable is achieved through the combination of the mounting frame, cable roller, reduction gearbox, and drive motor, providing reliable power for the lifting and lowering of the sampling structure. Subsequently, the guide rod of the spliced guide assembly can constrain the movement trajectory of the mounting plate, reducing deviations caused by water flow impact and uneven distribution of equipment weight. At the same time, the laser displacement encoder can monitor the movement distance of the guide rod in real time, and the pressure sensor can sense the water depth. The combination of these two improves the control accuracy of the sampling depth and reduces the deviation between the actual depth and the preset depth. Then, the streamlined flow guide can reduce the impact of water flow on the sampling tank and reduce the degree of shaking. With the help of the solenoid valve, the sampling timing can be precisely controlled, reducing the possibility of mixing of water at different depths and ensuring the representativeness and purity of the sample.
[0007] Preferably, the laser displacement encoder and the pressure sensor are both electrically connected to an external controller, and the solenoid valve is also electrically connected to the external controller.
[0008] By adopting the above technical solution, the laser displacement encoder and pressure sensor transmit the detected depth-related information to the external controller. After processing the information, the external controller precisely controls the opening and closing of the solenoid valve, realizing automated control of the sampling process, reducing errors caused by human operation, ensuring that sampling is completed at the preset depth, and further improving the representativeness and purity of the sample.
[0009] Preferably, a protective cover is fixedly connected to the outside of the sampling container, and the electromagnetic valve is located inside the protective cover.
[0010] By adopting the above technical solution, the protective cover protects the solenoid valve, reduces the direct impact of water flow and the influence of impurities in the water on the solenoid valve, lowers the probability of failure, ensures the normal operation of the solenoid valve, thereby maintaining the stability of the sampling process and indirectly ensuring the purity of the sample.
[0011] Preferably, a connecting seat is fixedly connected to the upper side of the mounting plate, and the outer sides of the guide rod and the connecting rod are inserted into the interior of the connecting seat. The connecting seat and the guide rod are fixedly connected by bolts.
[0012] By adopting the above technical solution, a stable connection between the guide rod and the mounting plate is achieved using the connecting seat. The bolt fixing method enhances the reliability of the connection and avoids the mounting plate from shaking or shifting due to loose connection when the guide rod guides the mounting plate, which helps to improve the accuracy of sampling depth.
[0013] Preferably, the limiting component includes a component cavity and two slots. The inner wall of the component cavity is formed inside the guide rod, and the outer sides of the two slots are formed at the ends of the guide rod. The outer sides of the two connecting rods are inserted into the inner sides of the slots.
[0014] By adopting the above technical solution, the positioning connection between adjacent guide rods is achieved through the insertion and engagement of the slot and the connecting rod, preventing radial displacement of the guide rod during the splicing process, ensuring the overall straightness of the spliced guide assembly, thereby improving the guiding accuracy of the mounting plate and reducing the offset of the device during the lifting process.
[0015] Preferably, two movable plates are slidably connected to the inner side of the component cavity, and a spring is fixedly connected between the two movable plates. Limiting rods are fixedly connected to the opposite ends of the two movable plates, and the outer sides of the two limiting rods are inserted into the inner side of the semi-circular insertion hole.
[0016] By adopting the above technical solution, the moving plate is moved by a spring, so that the limiting rod is tightly inserted into the semi-circular insertion hole, which realizes the stable connection of adjacent guide rods, avoids the separation or loosening of guide rods during the lifting and lowering of the device, ensures the stable operation of the guiding function of the spliced guide assembly, reduces device offset, and improves the sampling depth accuracy.
[0017] Preferably, the end of the limiting rod has a semi-circular structure, and the shape of the end of the limiting rod is adapted to the inner wall of the semi-circular insertion hole.
[0018] By adopting the above technical solution, the semi-circular end of the limiting rod is adapted to the semi-circular insertion hole, which not only reduces the mechanical resistance and wear when the two are inserted, and facilitates the quick splicing of the guide rod, but also allows the limiting rod to be disassembled by applying external force to overcome the pressure of the spring, thereby achieving the quick separation of the guide rod. This allows for flexible adjustment of the length of the spliced guide assembly to adapt to different sampling depth requirements.
[0019] Preferably, the inner wall of the component cavity has two symmetrical guide grooves, and the outer sides of the two movable plates are slidably connected to the inner side of the guide grooves.
[0020] By adopting the above technical solution, the guide groove constrains the sliding trajectory of the moving plate, preventing the moving plate from shifting or getting stuck under the spring force, ensuring that the limit rod is accurately inserted into the semi-circular insertion hole, ensuring the stable operation of the limit component, and maintaining the reliability of the guide rod splicing.
[0021] In summary, this application includes at least one of the following beneficial technical effects: This precision deep-water sampling device utilizes a combination of a mounting frame, cable rollers, a reduction gearbox, and a drive motor to ensure stable cable deployment and retraction, providing reliable power for the lifting and lowering of the sampling structure. The guide rods of the modular guide assembly effectively constrain the movement trajectory of the mounting plate, reducing water flow impact and offset caused by uneven equipment weight. Simultaneously, the synergistic effect of connecting rods and limiting components allows for the stable connection and flexible disassembly of multiple guide rods. A laser displacement encoder and pressure sensor, in conjunction with an external controller, enhance the accuracy of sampling depth control. A streamlined flow guide reduces the impact of water flow on the sampling tank, minimizing swaying. The overall structure works synergistically to effectively reduce the deviation between the actual sampling depth and the preset depth, minimizing water mixing at different depths and ensuring the representativeness and purity of the sample. Attached Figure Description
[0022] Figure 1 This is a three-dimensional structural diagram of the entire application; Figure 2 This is a cross-sectional structural diagram of the entire application; Figure 3 This is a three-dimensional structural diagram of the mounting plate and connector of this application; Figure 4 This is a schematic diagram of the separate structure of the electromagnetic valve and protective cover in this application; Figure 5 This is a schematic diagram of the internal structure of the guide rod in this application.
[0023] In the picture: 1. Base; 2. Mounting bracket; 3. Cable roller; 4. Gearbox; 5. Drive motor; 6. Guide rod; 7. Laser displacement encoder; 8. Limiting assembly; 801. Assembly cavity; 802. Slot; 803. Spring; 804. Moving plate; 805. Limiting rod; 806. Guide groove; 9. Connecting rod; 10. Semi-circular insertion hole; 11. Mounting plate; 12. Streamlined flow guide; 13. Pressure sensor; 14. Sampling container; 15. Solenoid valve; 16. Protective cover; 17. Connecting seat. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.
[0025] Example 1: A precision deep-water sampling device, please refer to... Figure 1 , Figure 2 and Figure 5 The system includes a base 1, with two mounting brackets 2 fixedly connected to the upper side of the base 1. A cable roller 3 is rotatably connected between the two mounting brackets 2. A reduction gearbox 4 is fixedly embedded on the outer side of one of the mounting brackets 2, and the output end of the reduction gearbox 4 is fixedly connected to one end of the cable roller 3. A drive motor 5 is fixedly mounted on the outer side of the reduction gearbox 4, and the output end of the drive motor 5 is fixedly connected to the input end of the reduction gearbox 4. The mounting bracket 2, cable roller 3, reduction gearbox 4, and drive motor 5 work together to achieve stable cable winding and unwinding, providing reliable power for the lifting and lowering of the sampling structure. A spliced guide assembly is provided on the outer side of the base 1. The spliced guide assembly includes multiple guide rods 6. The guide rods 6 of the spliced guide assembly can constrain the movement trajectory of the mounting plate 11, reducing the deviation caused by water flow impact and uneven distribution of equipment weight. Two connecting rods 9 are fixedly connected to one end of each guide rod 6. A semi-circular insertion hole 10 is opened on the side of the two connecting rods 9 that are close to each other. A limit component 8 is provided inside the other end of each guide rod 6.
[0026] Please refer to Figure 2 and Figure 5The limiting component 8 includes a component cavity 801 and two slots 802. The inner wall of the component cavity 801 is formed inside the guide rod 6. The outer sides of the two slots 802 are formed at the ends of the guide rod 6. The outer sides of the two connecting rods 9 are inserted into the inner sides of the slots 802. By using the insertion and engagement of the slots 802 and the connecting rods 9, the positioning connection between adjacent guide rods 6 is achieved, preventing radial displacement of the guide rods 6 during the splicing process, ensuring the overall straightness of the spliced guide component, thereby improving the guiding accuracy of the mounting plate 11 and reducing the offset of the device during the lifting process. The inner side of the component cavity 801 has a sliding connection. Two movable plates 804 are connected, and a spring 803 is fixedly connected between the two movable plates 804. Limiting rods 805 are fixedly connected to the opposite ends of the two movable plates 804. The outer sides of the two limiting rods 805 are inserted into the inner side of the semi-circular insertion hole 10. The movable plates 804 are moved by the spring 803, so that the limiting rods 805 are tightly inserted into the semi-circular insertion hole 10. This achieves a stable connection between adjacent guide rods 6, avoids separation or loosening of the guide rods 6 during the lifting and lowering of the device, ensures the stable operation of the guiding function of the spliced guide assembly, reduces device offset, and improves the sampling depth accuracy.
[0027] Please refer to Figure 1 , Figure 2 and Figure 5 A laser displacement encoder 7 is fixedly installed on the upper side of the base 1, and a mounting plate 11 is provided below the base 1. One end of the cable roller 3 is fixedly connected to the outside of the mounting plate 11. A streamlined flow guide shroud 12 is fixedly connected to the bottom surface of the mounting plate 11, and a pressure sensor 13 is fixedly installed on the upper side of the mounting plate 11. The laser displacement encoder 7 can monitor the movement distance of the guide rod 6 in real time, while the pressure sensor 13 can sense the water depth. The two work together to improve the control accuracy of the sampling depth and reduce the deviation between the actual depth and the preset depth. A sampling tank 14 is provided inside the streamlined flow guide shroud 12, and the sampling tank 14... The outer side of the sampling container 14 is fixedly connected to the bottom surface of the mounting plate 11. An electromagnetic valve 15 is fixedly installed on the outer side of the sampling container 14. The laser displacement encoder 7 and the pressure sensor 13 are both electrically connected to an external controller. The electromagnetic valve 15 is also electrically connected to the external controller. The laser displacement encoder 7 and the pressure sensor 13 transmit the detected depth-related information to the external controller. After processing the information, the external controller precisely controls the opening and closing of the electromagnetic valve 15 to achieve automated control of the sampling process, reduce errors caused by human operation, ensure that sampling is completed at the preset depth, and further improve the representativeness and purity of the sample.
[0028] Example 2: A precision deep-water sampling device, please refer to... Figure 3 and Figure 4A protective cover 16 is fixedly connected to the outside of the sampling tank 14. The solenoid valve 15 is located inside the protective cover 16. The protective cover 16 protects the solenoid valve 15, reducing the direct impact of water flow and the influence of impurities in the water on the solenoid valve 15, reducing the probability of failure, ensuring the normal operation of the solenoid valve 15, thereby maintaining the stability of the sampling process and indirectly ensuring the purity of the sample. A connecting seat 17 is fixedly connected to the upper side of the mounting plate 11. The outer sides of the guide rod 6 and the connecting rod 9 are inserted into the interior of the connecting seat 17. The connecting seat 17 and the guide rod 6 are fixedly connected by bolts. The connecting seat 17 realizes a stable connection between the guide rod 6 and the mounting plate 11. The bolt fixing method enhances the reliability of the connection and avoids the mounting plate 11 from shaking or shifting due to loose connection when the guide rod 6 guides the mounting plate 11, which helps to improve the accuracy of the sampling depth.
[0029] Please refer to Figure 2 and Figure 5 The end of the limiting rod 805 has a semi-circular structure, and the shape of the end of the limiting rod 805 is adapted to the inner wall of the semi-circular insertion hole 10. The semi-circular end of the limiting rod 805 is adapted to the semi-circular insertion hole 10, which not only reduces the mechanical resistance and wear when the two are inserted, and facilitates the quick splicing of the guide rod 6, but also allows the limiting rod 805 to be disengaged from the semi-circular insertion hole 10 by applying external force to overcome the pressure of the spring 803 when disassembly is required, thereby realizing the quick separation of the guide rod 6 and flexibly adjusting the splicing. The length of the guide assembly is adjusted to accommodate different sampling depth requirements. Two symmetrical guide grooves 806 are formed on the inner wall of the assembly cavity 801. The outer sides of the two movable plates 804 are slidably connected to the inner sides of the guide grooves 806. The guide grooves 806 constrain the sliding trajectory of the movable plates 804, preventing them from shifting or jamming under the force of the spring 803. This ensures that the limiting rod 805 is accurately inserted into the semi-circular insertion hole 10, guaranteeing the stable operation of the limiting assembly 8 and maintaining the reliability of the guide rod 6 splicing. The implementation principle of this application embodiment is as follows: When the device is working, it first drives the height of the spliced guide assembly according to the target sampling depth, and splices multiple guide rods 6. During the splicing process, the connecting rod 9 of one guide rod 6 is inserted into the slot 802 of another guide rod 6. At this time, the spring 803 in the component cavity 801 pushes the moving plate 804, so that the limiting rod 805 is accurately inserted into the semi-circular insertion hole 10 under the constraint of the guide groove 806, realizing the stable connection of adjacent guide rods 6. At the same time, the guide rod 6 is fixed to the mounting plate 11 by bolts using the connecting seat 17 to ensure the stability of the guide structure. Then, the drive motor 5 is started, which drives the cable roller 3 to rotate through the reduction gearbox 4, so that the cable drives the mounting plate 11 to sink along the guide rod 6. During the process, the laser displacement encoder 7 monitors the displacement distance of the guide rod 6 after splicing in real time, and the displacement data is transmitted to the external controller in real time. Then, the pressure Sensor 13 converts water depth pressure into depth data to sense the water depth. Both sensors transmit the information to an external controller. The controller analyzes and determines whether the mounting plate 11 has reached the preset depth. When the preset depth is reached, the external controller controls the solenoid valve 15 to open, and the sampling tank 14 begins to collect water samples. The protective cover 16 protects the solenoid valve 15 from water flow and impurities. The streamlined guide cover 12 reduces the impact of water flow on the sampling tank 14 to reduce shaking. After sampling is completed, the solenoid valve 15 closes under the control of the controller to prevent water from mixing at different depths. Finally, the drive motor 5 rotates in reverse and retrieves the cable through the cable roller 3, lifting the mounting plate 11 and the sampling structure to the water surface to complete the sampling process. Afterward, if it is necessary to adjust the sampling depth, external force can be applied to overcome the pressure of the spring 803 to disengage the limiting rod 805 from the semi-circular insertion hole 10. The guide rod 6 can be removed or added to adjust the length of the guide assembly.
Claims
1. A precision deep-water sampling device, comprising a base (1), characterized in that: Two mounting brackets (2) are fixedly connected to the upper side of the base (1). A cable roller (3) is rotatably connected between the two mounting brackets (2). A gearbox (4) is fixedly embedded on the outer side of one of the mounting brackets (2), and the output end of the gearbox (4) is fixedly connected to one end of the cable roller (3). A drive motor (5) is fixedly installed on the outer side of the gearbox (4), and the output end of the drive motor (5) is fixedly connected to the input end of the gearbox (4). A spliced guide assembly is provided on the outer side of the base (1). The spliced guide assembly includes multiple guide rods (6). Two connecting rods (9) are fixedly connected to one end of each guide rod (6). The two connecting rods (9) are provided with openings on the side that is close to each other. A semi-circular socket (10) is provided. Each guide rod (6) has a limit component (8) inside its other end. A laser displacement encoder (7) is fixedly installed on the upper side of the base (1). An installation plate (11) is provided below the base (1). One end of the cable roller (3) is fixedly connected to the outside of the installation plate (11). A streamlined flow guide (12) is fixedly connected to the bottom surface of the installation plate (11). A pressure sensor (13) is fixedly installed on the upper side of the installation plate (11). A sampling tank (14) is provided inside the streamlined flow guide (12). The outside of the sampling tank (14) is fixedly connected to the bottom surface of the installation plate (11). An electromagnetic valve (15) is fixedly installed on the outside of the sampling tank (14).
2. The precision deep-water sampling device according to claim 1, characterized in that: The laser displacement encoder (7) and the pressure sensor (13) are both electrically connected to an external controller, and the solenoid valve (15) is also electrically connected to the external controller.
3. The precision deep-water sampling device according to claim 1, characterized in that: A protective cover (16) is fixedly connected to the outside of the sampling container (14), and the electromagnetic valve (15) is located inside the protective cover (16).
4. The precision deep-water sampling device according to claim 1, characterized in that: A connecting seat (17) is fixedly connected to the upper side of the mounting plate (11). The outer sides of the guide rod (6) and the connecting rod (9) are inserted into the interior of the connecting seat (17). The connecting seat (17) and the guide rod (6) are fixedly connected by bolts.
5. The precision deep-water sampling device according to claim 1, characterized in that: The limiting component (8) includes a component cavity (801) and two slots (802). The inner wall of the component cavity (801) is opened inside the guide rod (6). The outer sides of the two slots (802) are opened at the ends of the guide rod (6). The outer sides of the two connecting rods (9) are inserted into the inner side of the slots (802).
6. The precision deep-water sampling device according to claim 5, characterized in that: Two movable plates (804) are slidably connected to the inner side of the component cavity (801). A spring (803) is fixedly connected between the two movable plates (804). Limiting rods (805) are fixedly connected to the opposite ends of the two movable plates (804). The outer sides of the two limiting rods (805) are inserted into the inner side of the semi-circular socket (10).
7. A precision deep-water sampling device according to claim 6, characterized in that: The end of the limiting rod (805) has a semi-circular structure, and the shape of the end of the limiting rod (805) is adapted to the inner wall of the semi-circular insertion hole (10).
8. A precision deep-water sampling device according to claim 6, characterized in that: The inner wall of the component cavity (801) has two symmetrical guide grooves (806), and the outer sides of the two movable plates (804) are slidably connected to the inner side of the guide grooves (806).