A groundwater sampling device for environmental monitoring

Abstract

The utility model relates to environmental monitoring equipment technical field especially relates to a groundwater sampling device for environmental monitoring. Including bottom disc, bottom disc is equipped with one, and the middle hole is set up on the bottom disc, to make sampling pump and water suction pipe through the middle hole and extend into the well, rotationally set up the turntable on the bottom disc, four arc grooves are set up on the turntable along the circumference, the moving rod that is consistent with the number and the layout of arc groove is also slidably provided on the bottom disc along the circumference, and the end of moving rod is provided with the embedded end that is embedded in adjacent arc groove. The utility model discloses through setting up moving rod and the structure of the stopper, can effectively limit the water suction pipe and sampling pump in the shaking of the falling process, avoid its and the well wall and lead to the soil falling off to collide or rub, thereby significantly reduce the risk of water sample being contaminated, help to keep the stability of sampling equipment operation, ensure the accuracy of sampling position, improve sampling accuracy and reliability.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, and in particular to a groundwater sampling device for environmental monitoring. Background Technology

[0002] Groundwater sampling refers to the collection of water samples from underground aquifers for the analysis of water quality, pollutant types, and groundwater flow characteristics. This technology is widely used in environmental monitoring, pollution source tracing, and water resource management. It serves as an important bridge connecting environmental data with scientific decision-making, and its significance extends beyond pollution prevention and control to encompass all aspects of sustainable development, including ecological protection, resource management, and public health.

[0003] Currently, groundwater sampling typically involves vertically lowering the sampling tube from a sampling borehole at the surface to the target depth. However, due to the small diameter of the sampling borehole, the tube is prone to swaying during descent, potentially causing it to collide or rub against the borehole wall. This can lead to soil erosion from the borehole wall, contaminating the collected water sample.

[0004] Therefore, there is an urgent need to design a groundwater sampling device for environmental monitoring to effectively solve the sampling interference problem existing in the current technology and improve the sampling accuracy and ease of operation. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a groundwater sampling device for environmental monitoring.

[0006] The technical solution is as follows: A groundwater sampling device for environmental monitoring includes a mounting frame, a winding wheel, a motor, a pulley frame, a pumping pipe, a sampling pump, a chassis, a turntable, a moving rod, a fitting end, and a stop rod. A winding wheel is rotatably mounted on the mounting frame. A motor is mounted on one side of the mounting frame, and the output end of the motor is connected to the shaft end of the winding wheel. A pumping pipe is wound around the winding wheel. A pulley frame is located at the front of the mounting frame, and the end of the pumping pipe passes through the pulley portion of the pulley frame. A sampling pump is mounted at the tail end of the pumping pipe. A chassis is provided, and a central hole is opened on the chassis to allow the sampling pump and pumping pipe to extend into the well through the central hole. A turntable is rotatably mounted on the chassis, and four arc-shaped grooves are opened circumferentially on the turntable. A moving rod, with the same number and layout as the arc-shaped grooves, slides circumferentially through the chassis. The end of the moving rod is provided with a fitting end that fits into an adjacent arc-shaped groove. A stop rod is provided at each opposite end of the moving rod to limit its position through the pumping pipe.

[0007] Furthermore, it also includes a dial plate and a locking block. A dial plate is hinged to each side of the turntable, and a locking block is provided at the bottom of the dial plate. The two sides of the chassis are also provided with slots arranged in a specific pattern, and the slots are engaged and matched with the locking blocks on the same side.

[0008] Furthermore, it also includes an assembly frame, a winding machine, a measuring ruler, and a probe. The assembly frame is located at the bottom of the pulley frame, and the winding machine is installed on the assembly frame. The measuring ruler is wound on the winding machine, extends downward and is parallel to the water pumping pipe, and a probe connected to the sampling pump is located at the end of the measuring ruler for monitoring the sampling water level.

[0009] Furthermore, it also includes a limit frame, which is set between the two sides of the chassis, and the water pump pipe passes through the limit frame and extends into the central hole of the chassis.

[0010] Furthermore, it also includes fixing nails, which are arranged and distributed on the bottom of the chassis.

[0011] Furthermore, the dial is wavy and bent.

[0012] The beneficial effects of this utility model are as follows: 1. By setting a moving rod and a stop rod structure, this utility model can effectively limit the shaking of the pumping pipe and sampling pump during the descent process, avoid collision or friction with the well wall and soil loss, thereby significantly reducing the risk of water sample contamination, helping to maintain the stability of the sampling equipment operation, ensuring the accuracy of the sampling position, and improving the sampling accuracy and reliability.

[0013] 2. This utility model uses a winding machine to synchronously release the measuring ruler, which, together with the probe, enables real-time monitoring of the sampling depth. This simplifies the operation process, improves the convenience of depth control during groundwater sampling, and reduces the degree of manual intervention and operating costs.

[0014] 3. The present invention has a fixing nail at the bottom of the chassis, which enhances the fixation and overall stability of the device at the wellhead, effectively prevents displacement caused by vibration or external force during operation, and ensures the safety and continuity of equipment operation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the pulley frame, water pipe, and sampling pump of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the chassis, turntable, and moving rod of this utility model.

[0018] Figure 4 This utility model Figure 3 An enlarged schematic diagram of part A in the middle.

[0019] Figure 5 This is a three-dimensional sectional view of the components after the chassis and turntable of this utility model have been disassembled.

[0020] Figure 6 This is a three-dimensional structural cross-sectional view of the components of this utility model, including the winding machine, measuring ruler, and probe.

[0021] The markings in the attached diagram are as follows: 1: Mounting frame, 2: Winding wheel, 3: Motor, 4: Pulley frame, 5: Water suction pipe, 6: Sampling pump, 7: Chassis, 71: Slot, 8: Turntable, 9: Arc groove, 10: Moving rod, 101: Fitting end, 11: Abutment rod, 12: Limiting frame, 13: Paddle plate, 14: Locking block, 15: Fixing nail, 16: Assembly frame, 17: Winding machine, 18: Measuring ruler, 19: Probe. Detailed Implementation

[0022] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and to fully convey the scope of the invention to those skilled in the art.

[0023] Example: A groundwater sampling device for environmental monitoring, such as Figures 1-5 As shown, the system includes a mounting frame 1, a take-up wheel 2, a motor 3, a pulley frame 4, a water suction pipe 5, a sampling pump 6, a chassis 7, a turntable 8, a moving rod 10, a fitting end 101, and a stop rod 11. The take-up wheel 2 is rotatably mounted on the mounting frame 1. The motor 3 is mounted on the left side of the mounting frame 1, and its output end is connected to the shaft end of the take-up wheel 2. The water suction pipe 5 is wound around the take-up wheel 2. The motor 3 drives the take-up wheel 2 to rotate, thereby achieving automatic control of the take-up and unwinding of the water suction pipe 5. A pulley frame 4 is fixedly mounted on the front side of the mounting frame 1. The pulley frame 4 has a bent structure, with a horizontally extending straight section at its upper end. This facilitates the passage of the end of the water suction pipe 5 through the guide pulley section in the pulley frame 4, thereby achieving stable guidance and ensuring smooth take-up of the water suction pipe 5. The well is equipped with a sampling pump 6 at the end of the pumping pipe 5, which serves as the main power source for groundwater sampling. The base 7 has a central hole to allow the sampling pump 6 and the pumping pipe 5 to extend into the well. A turntable 8 is rotatably mounted on the base 7, and four arc-shaped grooves 9 are circumferentially arranged on the turntable 8. Moving rods 10, which are circumferentially slidably arranged on the base 7, are also provided. The moving rods 10 have fitting ends 101 that are embedded in adjacent arc-shaped grooves 9. Each moving rod 10 has a stop rod 11 at one of its opposite ends. The stop rods 11 extend downwards to coordinate with each moving rod 10 to synchronously limit the position of the pumping pipe 5 during the drilling process.

[0024] Specifically, the turntable 8 rotates to drive the arc-shaped groove 9 to move, which in turn pushes the fitting end 101 to slide along the groove, causing the moving rod 10 and the abutment rod 11 to produce radial displacement (expansion or contraction), realizing the automatic adjustment function, which facilitates quick clamping or release of the water pump 5. The abutment rod 11 is located at the front end of the moving rod 10 and directly contacts the surface of the water pump 5. By clamping the water pump 5 and the sampling pump 6 at multiple points simultaneously, it limits the position of the water pump 5 and the sampling pump 6, effectively preventing them from shifting or shaking during the lowering process, thereby improving the safety and accuracy of the sampling process.

[0025] like Figures 3-5 As shown, it also includes a dial plate 13 and a locking block 14. A dial plate 13 is hinged to each side of the turntable 8. The dial plate 13 adopts a bent wave-shaped structure, which not only enhances the feel and anti-slip properties during operation, but also improves the structural strength, making it easy for the operator to push or rotate the turntable 8 to realize the movement of the moving rod 10 or its own pushing movement. A locking block 14 is provided at the bottom of the dial plate 13. The base 7 also has slots 71 arranged on both sides. The slots 71 and the locking blocks 14 on the same side are matched and can effectively lock the relative position between the turntable 8 and the base 7, preventing the turntable from shifting due to vibration or external force during sampling, thereby ensuring the stability of the structure of both.

[0026] like Figure 6 As shown, it also includes an assembly frame 16, a winding machine 17, a measuring ruler 18, and a probe 19. The assembly frame 16 is provided at the bottom end of the pulley frame 4. The winding machine 17 is installed on the assembly frame 16. The measuring ruler 18 is wound on the winding machine 17. The measuring ruler 18 extends downward and is parallel to the water pumping pipe 5. A probe 19 connected to the sampling pump 6 is provided at the end of the measuring ruler 18. The probe 19 integrates a liquid level sensor. The above components constitute a water level monitoring device in the prior art, used to monitor water level changes in real time during the sampling process.

[0027] During operation, the probe 19 moves synchronously with the lowering of the sampling pump 6, while the measuring scale 18 unfolds accordingly. The measuring scale 18 features precise graduations, allowing operators to accurately observe the depth to which the sampling pump 6 enters the well. When the probe 19 and sampling pump 6 come into contact with the water, the built-in liquid level sensor automatically collects relevant data and transmits the information to the backend in real time. Staff can analyze and evaluate the sampling depth and monitoring status based on the collected data. This function is crucial for ensuring the accuracy of sampling point locations, and is particularly suitable for scenarios requiring precise sampling from specific depths.

[0028] like Figure 3As shown, it also includes a limiting frame 12. The limiting frame 12 is set between the two sides of the chassis 7. The water pumping pipe 5 passes through the limiting frame 12 and extends into the central hole of the chassis 7. The limiting frame 12 serves as an auxiliary positioning component, providing additional guiding support for the water pumping pipe 5 to ensure that it remains vertical during lifting.

[0029] like Figure 5 As shown, it also includes fixing nails 15. The bottom of the chassis 7 is arranged with fixing nails 15. The chassis 7 is stably fixed by fixing nails 15, which helps to maintain the overall balance of the sampling equipment and avoid operational risks caused by tilting or sliding.

[0030] In use, first ensure the mounting bracket 1 is placed stably, then place the base plate 7 in the drilling position, and simultaneously secure the base plate 7 with the fixing nails 15, ensuring that the central hole of the base plate 7 is aligned with the wellhead so that the sampling pump 6 can smoothly extend into the well. Next, hold the lever 13 and push it to rotate the turntable 8. Under the action of the arc groove 9 on the turntable 8, the engaging end 101 of the moving rod 10 is pushed, causing each moving rod 10 to slide along the base plate 7, achieving the action of closing or expanding. At this time, manually push the moving rod 10 to move it towards the water pipe 5, causing the connecting rod 11 to fit against the water pipe 5, until the four moving rods 10 and the connecting rod 11 are tightly fitted against the water pipe 5, thereby effectively restricting the overall position of the water pipe 5 and the sampling pump 6, further stabilizing the descent path of the sampling pump 6. Then, pull the lever 13 to rotate it hingedly, so that the locking block 14 at its bottom aligns with the corresponding locking slot 71 and completes the locking, thus firmly connecting the base plate 7 and the turntable 8. Next, motor 3 is started, driving the winding wheel 2 to rotate and releasing the pumping pipe 5 wound on it, allowing the sampling pump 6 to descend into the well. Under the combined action of the moving rod 10, the stop rod 11, and the limiting frame 12, the swaying of the pumping pipe 5 and sampling pump 6 during descent is effectively controlled, avoiding well wall friction caused by swaying. Simultaneously, the winding machine 17 releases the measuring scale 18, allowing the probe 19 to descend into the well along with the sampling pump 6. The measuring scale 18 unfolds, and its graduated scale reflects changes in drilling depth in real time. When the probe 19 contacts the water in the sampling pump 6, its internal liquid level sensor automatically collects relevant data and transmits the information to the backend in real time. Once the sampling pump 6 reaches the target depth, it can be started to perform groundwater sampling, thus completing the entire groundwater sampling process.

[0031] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A groundwater sampling device for environmental monitoring, comprising a mounting frame (1), characterized in that, It also includes a take-up reel (2), on which the take-up reel (2) is rotatably mounted. A motor (3) is mounted on one side of the mounting frame (1), and the output end of the motor (3) is connected to the shaft end of the take-up reel (2). A water suction pipe (5) is wound around the take-up reel (2). A pulley frame (4) is provided on the front side of the mounting frame (1). The end of the water suction pipe (5) passes through the pulley part of the pulley frame (4), and a sampling pump (6) is installed at the tail end of the water suction pipe (5). A chassis (7) is provided, and a central hole is opened on the chassis (7) to allow the water suction pipe (5) to pass through the pulley part of the pulley frame (4). The sampling pump (6) and the water pumping pipe (5) can be extended into the well through the central hole. A turntable (8) is rotatably installed on the chassis (7). Four arc-shaped grooves (9) are opened along the circumference on the turntable (8). A movable rod (10) with the same number and layout as the arc-shaped grooves (9) is also slidably installed along the circumference on the chassis (7). The end of the movable rod (10) is provided with a fitting end (101) embedded in the adjacent arc-shaped groove (9). A stop rod (11) is provided at the opposite end of the movable rod (10) to limit the position of passing through the water pumping pipe (5).

2. The groundwater sampling device for environmental monitoring according to claim 1, characterized in that, It also includes a dial plate (13) and a locking block (14). A dial plate (13) is hinged to each side of the turntable (8). A locking block (14) is provided at the bottom of the dial plate (13). The chassis (7) is also provided with slots (71) arranged in a grid on both sides. The slots (71) are engaged and adapted with the locking blocks (14) on the same side.

3. The groundwater sampling device for environmental monitoring according to claim 2, characterized in that, It also includes an assembly frame (16), a winding machine (17), a measuring ruler (18), and a probe (19). The assembly frame (16) is provided at the bottom end of the pulley frame (4). The winding machine (17) is installed on the assembly frame (16). The measuring ruler (18) is wound on the winding machine (17). The measuring ruler (18) extends downward and is parallel to the water pumping pipe (5). A probe (19) connected to the sampling pump (6) is provided at the end of the measuring ruler (18) for monitoring the sampling water level.

4. The groundwater sampling device for environmental monitoring according to claim 3, characterized in that, It also includes a limiting frame (12), which is provided between the two sides of the chassis (7), and the water pump (5) passes through the limiting frame (12) and extends into the central hole of the chassis (7).

5. The groundwater sampling device for environmental monitoring according to claim 4, characterized in that, It also includes fixing nails (15), and the bottom of the chassis (7) is provided with fixing nails (15).

6. The groundwater sampling device for environmental monitoring according to claim 5, characterized in that, The dial (13) is in the shape of a bent wave.

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