A multi-point in-situ water body sampling device

Abstract

The utility model provides a kind of multi-point in-situ water body sampling device, including fixed rod, retraction rod, sampling mechanism and controller, sampling mechanism includes rotary arm, rotary drive mechanism for driving rotary arm rotation, for installing sampling head fixed structure, fixed rod is fixedly arranged, fixed rod one end is close to water body area and is hinged with retraction rod one end, retraction rod other end is close to water body area and is rotatably connected with rotary arm, rotary drive mechanism is arranged on retraction rod, fixed structure is slidably arranged on rotary arm by linear drive mechanism;Water sample on-line detection equipment, concentrator are equipped at fixed rod, there is string on concentrator, string is connected with retraction rod at the end far from concentrator, sampling head is connected with the water sample on-line detection equipment by sampling tube.The utility model can realize larger range multi-point sampling compared with traditional manual sampling, and sampling is more flexible and convenient.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, specifically to a multi-point in-situ water sampling device. Background Technology

[0002] Sampling of large and complex water bodies such as salt lakes, tailrace ponds, and chemical treatment ponds is a crucial part of environmental monitoring. By sampling and analyzing water samples, the condition of the water body can be determined, providing a basis for environmental monitoring and control. Traditional water sampling is mostly manual or uses fixed-point sampling structures, which have problems such as limited sampling area, inability to dynamically switch sampling points, and unsuitability for extreme weather. This is especially inconvenient in large salt fields or unattended areas. Therefore, a sampling system with a simple structure, wide coverage, remote control capability, and the ability to switch sampling locations at multiple points is needed. Utility Model Content

[0003] To address the problems in the background technology, this utility model proposes a multi-point in-situ water sampling device with a simple structure, wide coverage, remote control capability, and multiple switchable sampling locations. The device includes a fixed rod, a retractable rod, a sampling mechanism, and a controller. The sampling mechanism includes a rotating arm, a rotation drive mechanism for driving the rotating arm, and a fixing structure for mounting the sampling head. The fixed rod is fixedly installed, with one end close to the water area and hinged to one end of the retractable rod. The other end of the retractable rod is close to the water area and rotatably connected to the rotating arm. The rotation drive mechanism is mounted on the retractable rod, and the fixing structure is slidably mounted on the rotating arm via a linear drive mechanism. The fixed rod is equipped with an online water sample detection device and a cable retractor for retracting and extending the cable. The cable retractor is equipped with a cable, and the end of the cable away from the cable retractor is connected to the retractor rod. The sampling head is connected to the online water sample detection device through a sampling tube. The controller is connected to the rotary drive mechanism, the linear drive mechanism, and the hub, respectively. Preferably, the middle position of the rotating arm is rotatably connected to the end of the take-up and release rod. The rotating drive mechanism includes a first motor, a first driving wheel, and a first driven wheel. The first motor is fixedly connected to the take-up and release rod. The first driving wheel and the first driven wheel are rotatably connected to the take-up and release rod. The rotating arm is fixedly connected to the first driven wheel. The output end of the first motor is fixedly connected to the first driving wheel. The first driving wheel and the first driven wheel are connected by a first transmission belt. The controller is connected to the first motor.

[0004] Preferably, the diameter of the first driving wheel is smaller than the diameter of the first driven wheel.

[0005] Preferably, the linear drive mechanism includes a second motor, a second driving wheel, and a second driven wheel. The second driving wheel and the second driven wheel are rotatably connected to both ends of the rotating arm, respectively. The second driving wheel and the second driven wheel are connected by a second transmission belt. The second motor is fixedly connected to the rotating arm, and the output end of the second motor is fixedly connected to the second driving wheel. A slide rail is fixed on the rotating arm, and a mounting platform is fixed on the second transmission belt. The mounting platform is slidably connected to the slide rail. The fixing structure is disposed on the mounting platform, and the controller is connected to the second motor.

[0006] Preferably, the fixing structure is connected to the mounting platform via a point adjustment mechanism. The point adjustment mechanism includes a third motor, a rotating rod, a first mounting plate, and a second mounting plate. The third motor is fixedly connected to the mounting platform. One end of the rotating rod is rotatably connected to the mounting platform via a rotating shaft. The output end of the third motor is driven by the rotating shaft via a transmission mechanism. A vertical slide rod is fixed on the rotating rod. The first mounting plate is slidably mounted on the vertical slide rod. A horizontal slide rod is slidably mounted on the first mounting plate. The second mounting plate is fixedly connected to the horizontal slide rod. The fixing structure is mounted on the second mounting plate. The first mounting plate and the second mounting plate are driven by a first cylinder and a second cylinder, respectively. The first cylinder and the second cylinder are respectively connected to a controller.

[0007] Preferably, the top end of the vertical slide rod is fixedly connected to the rotating rod, the bottom end of the vertical slide rod is fixedly provided with a first limiting plate, one end of the horizontal slide rod is fixedly connected to the second mounting plate, and the other end of the horizontal slide rod slides through the first mounting plate and is fixedly provided with the second limiting plate.

[0008] Preferably, a heat tracing pipe is provided on the outside of the sampling tube.

[0009] Preferably, the hub includes a spool and a fourth motor, one end of the rope is wound around the spool, the spool is driven to rotate by the fourth motor, and the controller is connected to the fourth motor.

[0010] The beneficial effects of this utility model are as follows: 1. This utility model is installed on the bank of a water body and includes a rotatable rotating arm and a fixed structure that slides along the rotating arm and is fixed to a sampling head. The fixed structure slides along the rotating arm and rotates with it, enabling multi-point sampling within a radius equal to the sliding distance of the fixed structure. Simultaneously, the rotation drive mechanism driving the rotating arm and the linear drive mechanism driving the fixed structure are both controlled by a controller, eliminating the need for manual on-site operation to change the sampling points. Compared to traditional manual sampling, this utility model enables multi-point sampling over a larger area, making sampling more flexible and convenient.

[0011] 2. The fixed structure with a sampling head in this utility model can further adjust the sampling position under the drive of the first cylinder and the second cylinder, and more accurately control the sampling position and depth, which is suitable for different application schemes.

[0012] 3. This utility model is equipped with a cable collector and a rope. In the non-working state, the cable collector can be used to wind up the rope, which can retract the winding rod and retrieve the device, making it easier to protect the device and improve its safety.

[0013] 4. This utility model has a simple structure, modular mechanical structure, and is easy to maintain and replace. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the retractable rod of this utility model in its unfolded state; Figure 5 This is a schematic diagram of the retractable rod of this utility model when it is retracted.

[0015] Labels in the diagram: 1. Fixed rod; 2. Retracting rod; 3. Rotating arm; 4. First motor; 5. First driving wheel; 6. First driven wheel; 7. First transmission belt; 8. Second motor; 9. Second driving wheel; 10. Second driven wheel; 11. Second transmission belt; 12. Slide rail; 13. Mounting platform; 14. First mounting plate; 15. Second mounting plate; 16. Third motor; 17. Rotating rod; 18. Vertical slide rod; 19. Horizontal slide rod; 20. First limiting plate; 21. Second limiting plate; 22. Sampling tube; 23. Winding drum; 24. Fourth motor; 25. Online water sample detection equipment; 26. First fixed plate; 27. Second fixed plate; 28. Clamping hole; 29. ​​Rotating connection; 30. First cylinder; 31. Second cylinder; 32. Rope; 33. Water area. Detailed Implementation

[0016] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0017] In this article, terms such as "inner," "outer," "upper," "lower," "horizontal," and "vertical" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0018] Combined with appendix Figure 1 -Appendix Figure 5 A multi-point in-situ water sampling device includes a fixed rod 1, a retractable rod 2, a sampling mechanism, and a controller. The sampling mechanism includes a rotating arm 3, a rotation drive mechanism for driving the rotating arm 3 to rotate, and a fixing structure for mounting a sampling head. The fixed rod 1 is fixedly installed, with one end close to the water area 33 and hinged to one end of the retractable rod 2. The other end of the retractable rod 2 is close to the water area 33 and rotatably connected to the rotating arm 3. The rotation drive mechanism is mounted on the retractable rod 2. The fixing structure is slidably mounted on the rotating arm 3 via a linear drive mechanism. Under the drive of the linear drive mechanism, the fixing structure can slide along the length of the rotating arm 3. The sliding path length of the fixing structure is the diameter of the sampling range. The rotation of the rotating arm 3 can form a circular or fan-shaped sampling range within the diameter of the sampling range.

[0019] The fixed rod 1 is equipped with an online water sample detection device 25 and a cable collector for winding and unwinding the rope 32. The cable collector is equipped with the rope 32. The end of the rope 32 away from the cable collector is connected to the winding and unwinding rod 2. The sampling head is connected to the online water sample detection device 25 through the sampling tube 22. The controller is connected to the rotary drive mechanism, the linear drive mechanism, and the hub, respectively. Specifically, the rope 32 is a corrosion-resistant rope, and the rotating arm 3 and the fixing structure are made of lightweight, corrosion-resistant alloy material. The fixing rod 1 can be fixedly connected to the ground next to the water area 33 by pre-embedding or weighting.

[0020] Specifically, the rotating arm 3 is rotatably connected to the end of the take-up / release rod 2 at its middle position. The rotating drive mechanism includes a first motor 4, a first driving wheel 5, and a first driven wheel 6. The first motor 4 is fixedly connected to the take-up / release rod 2, and the first driving wheel 5 and the first driven wheel 6 are rotatably connected to the take-up / release rod 2. The rotating arm 3 is fixedly connected to the first driven wheel 6, and the output end of the first motor 4 is fixedly connected to the first driving wheel 5. The first driving wheel 5 and the first driven wheel 6 are connected by a first transmission belt 7. The controller is connected to the first motor 4. More specifically, the diameter of the first driving wheel 5 is smaller than the diameter of the first driven wheel 6. The first motor 4 drives the first driving wheel 5 to rotate, and the first driving wheel 5 drives the first driven wheel 6 to rotate via the first transmission belt 7. The first driven wheel 6 then drives the rotating arm 3 to rotate.

[0021] Specifically, the linear drive mechanism includes a second motor 8, a second driving wheel 9, and a second driven wheel 10. The second driving wheel 9 and the second driven wheel 10 are rotatably connected to both ends of the rotating arm 3, respectively. The second driving wheel 9 and the second driven wheel 10 are connected by a second transmission belt 11. The second motor 8 is fixedly connected to the rotating arm 3, and its output end is fixedly connected to the second driving wheel 9. A slide rail 12 is fixed on the rotating arm 3, and a mounting platform 13 is fixed on the second transmission belt 11. The mounting platform 13 is slidably connected to the slide rail 12, and the fixed structure is mounted on the mounting platform 13. The controller is connected to the second motor 8. The second driving wheel 9 is driven to rotate by the second motor 8, and the second driving wheel 9 drives the second driven wheel 10 to rotate via the second transmission belt 11. When the second driving wheel 9 and the second driven wheel 10 rotate, the second transmission belt 11 rotates around the second driving wheel 9 and the second driven wheel 10, and the second transmission belt 11 drives the mounting platform 13 to slide along the slide rail 12. The mounting platform 13 drives the fixed structure to slide.

[0022] Specifically, the fixing structure is connected to the mounting platform 13 via a point adjustment mechanism. The point adjustment mechanism includes a third motor 16, a rotating rod 17, a first mounting plate 14, and a second mounting plate 15. The third motor 16 is fixedly connected to the mounting platform 13. One end of the rotating rod 17 is rotatably connected to the mounting platform 13 via a rotating shaft. The output end of the third motor 16 is driven by the rotating shaft via a transmission mechanism. A vertical slide rod 18 is fixed on the rotating rod 17. The first mounting plate 14 is slidably mounted on the vertical slide rod 18. A horizontal slide rod 19 is slidably mounted on the first mounting plate 14. The second mounting plate 15 is fixedly connected to the horizontal slide rod 19. The fixing structure is mounted on the second mounting plate 15. The first mounting plate 14 and the second mounting plate 15 are driven by a first cylinder 30 and a second cylinder 31, respectively. The first cylinder 30 and the second cylinder 31 are respectively connected to a controller.

[0023] More specifically, the fixing structure includes a first fixing plate 26 and a second fixing plate 27. One side of the first fixing plate 26 is fixedly connected to the second mounting plate 15, and the other side of the first fixing plate 26 is detachably connected to the second fixing plate 27 by bolts. The first fixing plate 26 and the second fixing plate 27 have corresponding arc-shaped grooves on opposite sides. After the first fixing plate 26 and the second fixing plate 27 are connected, the corresponding two arc-shaped grooves are joined to form a clamping hole 28 for clamping the sampling tube 22 connected to one end of the sampling head, or for clamping the sampling head. When the bolts are loosened, the first fixing plate 26 and the second fixing plate 27 can move relative to each other. At this time, the sampling head or sampling tube 22 can be placed in the clamping hole 28, and then the bolts are tightened to bring the first fixing plate 26 and the second fixing plate 27 closer together and fix them, thus achieving clamping and fixing of the sampling head or sampling tube 22. The fixing structure can also use a clamp structure to fix the sampling head or sampling tube 22, as long as the sampling head is fixed at the fixing structure.

[0024] Specifically, the top end of the vertical slide rod 18 is fixedly connected to the rotating rod 17, and the bottom end of the vertical slide rod 18 is fixedly fitted with a first limiting plate 20. One end of the horizontal slide rod 19 is fixedly connected to the second mounting plate 15, and the other end of the horizontal slide rod 19 slides through the first mounting plate 14 and is fixedly fitted with a second limiting plate 21. The first limiting plate 20 prevents the first mounting plate 14 from detaching from the vertical slide rod 18, and the second limiting plate 21 prevents the horizontal slide rod 19 from detaching from the first mounting plate 14.

[0025] More specifically, the cylinder body of the first cylinder 30 is fixedly connected to the rotating rod 17, and the output end of the first cylinder 30 is fixedly connected to the first mounting plate 14. The cylinder body of the second cylinder 31 is fixedly connected to the first mounting plate 14, and the output end of the second cylinder 31 is fixedly connected to the second mounting plate 15. The first cylinder 30 and the second cylinder 31 drive the fixed structure with the sampling tube 22 to move vertically or horizontally, thereby achieving further control and adjustment of the sampling position and improving the accuracy and flexibility of sampling. The third motor 16 drives the rotating rod 17 to rotate, enabling the selection of the sampling range with the length of the rotating rod 17 as the diameter. More specifically, the transmission mechanism adopts a pulley mechanism.

[0026] Specifically, a heat tracing pipe is provided on the outside of the sampling tube 22. The heat tracing pipe maintains the temperature of the sampling tube 22, preventing problems such as freezing and cracking of the sampling tube 22.

[0027] Specifically, the cable collector includes a reel 23 and a fourth motor 24. One end of the rope 32 is wound around the reel 23, which is driven to rotate by the fourth motor 24. The controller is connected to the fourth motor 24. When the fourth motor 24 drives the reel 23 to rotate, it winds up the rope 32, causing the take-up / release rod 2 to rotate closer to the fixed rod 1 under the pull of the rope 32, thus retracting the take-up / release rod 2. When the fourth motor 24 rotates in reverse, the reel 23 releases the rope 32, releasing the take-up / release rod 2. More specifically, a coil spring is provided at the rotatable connection 29 between the fixed rod 1 and the take-up / release rod 2. When the take-up / release rod 2 is retracted, the coil spring tightens. When the rope 32 is released to release the take-up / release rod 2, the take-up / release rod 2 can rotate away from the fixed rod 1 under the elastic force of the coil spring, thus automatically releasing the take-up / release rod 2.

[0028] The controller controls the actions of each motor and cylinder, specifically controlling the start and stop of the motors and cylinders, the rotation angle of the motors, the forward and reverse rotation of the motors, and the extension and retraction stroke of the cylinders, thereby adjusting the sampling range. Controlling the actions of the motors and cylinders via a controller is a conventional technique and will not be elaborated upon here.

[0029] Workflow: In non-working mode, the hub retracts the rope 32, driving the take-up and release rod 2 to retract, avoiding exposure to harsh environments. When sampling is required, the hub releases the rope 32, allowing the take-up and release rod 2 to unfold. The fixed structure with the sampling head is then placed in the water area 33. The sampling position is adjusted using a motor and cylinder. Once the sampling position is determined, the sampling head acquires a water sample and transports it through the sampling tube 22 to the online water sample detection device 25 for testing.

[0030] This invention can be applied to scenarios such as automated monitoring systems for lithium extraction from salt lakes, remote water quality sampling in large-scale aquaculture areas, multi-point online analysis systems for wastewater treatment plant effluent, and in-situ automatic monitoring terminals for unmanned water environments.

[0031] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-point in-situ water body sampling device, characterized by: The device includes a fixed rod (1), a retractable rod (2), a sampling mechanism, and a controller. The sampling mechanism includes a rotating arm (3), a rotation drive mechanism for driving the rotating arm (3) to rotate, and a fixing structure for mounting the sampling head. The fixed rod (1) is fixedly installed. One end of the fixed rod (1) is close to the water area (33) and is hinged to one end of the retractable rod (2). The other end of the retractable rod (2) is close to the water area (33) and is rotatably connected to the rotating arm (3). The rotation drive mechanism is installed on the retractable rod (2). The fixing structure is slidably installed on the rotating arm (3) through a linear drive mechanism. The fixed rod (1) is equipped with an online water sample detection device (25) and a cable collector for winding and unwinding the rope (32). The cable collector is equipped with a rope (32). The end of the rope (32) away from the cable collector is connected to the winding and unwinding rod (2). The sampling head is connected to the online water sample detection device (25) through a sampling tube (22). The controller is connected to the rotary drive mechanism, the linear drive mechanism, and the hub, respectively.

2. A multi-site in-situ water body sampling device according to claim 1, characterized in that: The rotating arm (3) is rotatably connected to the end of the take-up rod (2) at its middle position. The rotating drive mechanism includes a first motor (4), a first drive wheel (5), and a first driven wheel (6). The first motor (4) is fixedly connected to the take-up rod (2). The first drive wheel (5) and the first driven wheel (6) are rotatably connected to the take-up rod (2). The rotating arm (3) is fixedly connected to the first driven wheel (6). The output end of the first motor (4) is fixedly connected to the first drive wheel (5). The first drive wheel (5) and the first driven wheel (6) are connected by a first transmission belt (7). The controller is connected to the first motor (4).

3. A multi-site in-situ water body sampling device according to claim 2, wherein: The diameter of the first driving wheel (5) is smaller than the diameter of the first driven wheel (6).

4. A multi-site in-situ water body sampling device according to claim 1, characterized in that: The linear drive mechanism includes a second motor (8), a second driving wheel (9), and a second driven wheel (10). The second driving wheel (9) and the second driven wheel (10) are rotatably connected to both ends of the rotating arm (3). The second driving wheel (9) and the second driven wheel (10) are connected by a second transmission belt (11). The second motor (8) is fixedly connected to the rotating arm (3). The output end of the second motor (8) is fixedly connected to the second driving wheel (9). A slide rail (12) is fixed on the rotating arm (3). A mounting platform (13) is fixed on the second transmission belt (11). The mounting platform (13) is slidably connected to the slide rail (12). The fixed structure is located on the mounting platform (13). The controller is connected to the second motor (8).

5. A multi-site in-situ water body sampling device according to claim 4, wherein: The fixed structure is connected to the mounting platform (13) through a point adjustment mechanism. The point adjustment mechanism includes a third motor (16), a rotating rod (17), a first mounting plate (14), and a second mounting plate (15). The third motor (16) is fixedly connected to the mounting platform (13). One end of the rotating rod (17) is rotatably connected to the mounting platform (13) through a rotating shaft. The output end of the third motor (16) is connected to the rotating shaft through a transmission mechanism. A vertical slide rod (18) is fixed on the rotating rod (17). The first mounting plate (14) is slidably mounted on the vertical slide rod (18). A horizontal slide rod (19) is slidably mounted on the first mounting plate (14). The second mounting plate (15) is fixedly connected to the horizontal slide rod (19). The fixed structure is mounted on the second mounting plate (15). The first mounting plate (14) and the second mounting plate (15) are driven by a first cylinder (30) and a second cylinder (31), respectively. The first cylinder (30) and the second cylinder (31) are connected to a controller, respectively.

6. A multi-site in-situ water body sampling device according to claim 5, wherein: The top end of the vertical slide rod (18) is fixedly connected to the rotating rod (17), and the bottom end of the vertical slide rod (18) is fixed with a first limiting plate (20). One end of the horizontal slide rod (19) is fixedly connected to the second mounting plate (15), and the other end of the horizontal slide rod (19) slides through the first mounting plate (14) and is fixed with a second limiting plate (21).

7. A multi-site in-situ water body sampling device according to claim 1, characterized in that: A heat tracing pipe is provided on the outside of the sampling tube (22).

8. A multi-site in-situ water body sampling device according to claim 1, characterized in that: The hub includes a spool (23) and a fourth motor (24). One end of the rope (32) is wound around the spool (23). The spool (23) is driven to rotate by the fourth motor (24). The controller is connected to the fourth motor (24).

Images