A tidal marsh multi-element sampling monitoring device and a method of using the same

Abstract

The application provides a kind of tidal flat wetland multi-element sampling monitoring device and its using method, which includes: positioning outer cylinder;The positioning outer cylinder is provided with several supporting legs;Sampling inner cylinder, part is placed in the inside of the positioning outer cylinder, and can be moved up and down along the inside of the positioning outer cylinder;Monitoring inner cylinder, part is placed in the inside of the positioning outer cylinder, and can be moved up and down along the inside of the positioning outer cylinder;The monitoring inner cylinder is connected by several inner cylinder units, and the adjacent inner cylinder units can be detachably connected;Inner cylinder fixing part;The sampling inner cylinder and monitoring inner cylinder can be fixed on the inner cylinder fixing part;Crank rocker mechanism;The crank rocker mechanism is used to drive the inner cylinder fixing part to move up and down along the positioning outer cylinder.The application can realize the integration of sampling and monitoring in tidal flat wetland.

Description

Technical Field

[0001] This invention relates to the field of sampling and monitoring devices, specifically a multi-element sampling and monitoring device for sandbar wetlands and its usage method. Background Technology

[0002] In recent years, the Poyang Lake sandbar wetlands have faced numerous challenges, including shrinking area and declining biodiversity maintenance. The frequent occurrence of extreme weather events and the operation of major water conservancy projects have further increased the uncertainty of ecological processes and functional evolution in the sandbar wetlands. The degradation of lake ecosystem functions caused by the decline in sandbar wetland functions is increasingly constraining regional socio-economic development, leading to a surge in scientific and engineering research on sandbar wetlands.

[0003] Currently, most existing monitoring devices applicable to sandbar wetlands require manual well drilling for deployment. This results in a large amount of equipment needed for deployment and numerous and complex preparation steps before the equipment is put into operation. Furthermore, the long-term effectiveness of the monitoring devices is crucial for long-term monitoring tasks, and existing equipment lacks good system integration, making it unable to cope with diverse monitoring needs. Summary of the Invention

[0004] In view of the above-mentioned prior art, the present invention proposes a multi-element sampling and monitoring device for sandbar wetlands and its usage method.

[0005] This invention provides a multi-element sampling and monitoring device for sandbar wetlands, comprising: Positioning outer cylinder; the positioning outer cylinder is provided with several supporting feet; The sampling inner cylinder is partially placed inside the positioning outer cylinder and can move up and down along the inside of the positioning outer cylinder; The monitoring inner cylinder is partially placed inside the positioning outer cylinder and can move up and down along the inside of the positioning outer cylinder; the monitoring inner cylinder is composed of several inner cylinder units connected together, and adjacent inner cylinder units can be detachably connected. Inner cylinder fixing component; both the sampling inner cylinder and the monitoring inner cylinder can be fixed to the inner cylinder fixing component; A crank-rocker mechanism; the crank-rocker mechanism is used to drive the inner cylinder fixing component to move up and down along the positioning outer cylinder.

[0006] Preferably, the support foot is connected to the positioning outer cylinder via a bolt assembly.

[0007] Preferably, adjacent inner cylinder units are connected by threads.

[0008] Preferably, the bottom of the monitoring inner cylinder is provided with two monitoring holes arranged opposite each other, and the monitoring holes are provided with filter screens.

[0009] Preferably, the diameter of the middle part of the inner cylinder unit is smaller than the diameter of its end part, and a funnel-shaped layered cylinder is sleeved in the middle part of the inner cylinder unit. The top diameter of the funnel-shaped layered cylinder is larger than the bottom diameter, and the bottom of the funnel-shaped layered cylinder is fixedly and sealed to the outer wall of the inner cylinder unit.

[0010] Preferably, the funnel-shaped layered cylinder is made of a deformable material, and the interior of the funnel-shaped layered cylinder is hinged to the outer wall of the inner cylinder unit through several two-fold connecting rods.

[0011] Preferably, the sampling inner cylinder is provided with graduation lines.

[0012] Preferably, there are two crank-rocker mechanisms in a coaxial reverse mode, and the two crank-rocker mechanisms are connected by a reversing gear. Both crank-rocker mechanisms are connected to an inner cylinder fixing component.

[0013] Preferably, the inner cylinder fixing component is an inner cylinder fixing ring, which is placed inside the positioning outer cylinder and is interlocked with the sampling inner cylinder and the monitoring inner cylinder.

[0014] The present invention also provides a method for using the aforementioned multi-element sampling and monitoring device for sandbar wetlands, comprising the following steps: S1. Fix the positioning outer cylinder to the sandbar wetland using the support feet; S2. Fix the sampling inner cylinder to a preset position using the inner cylinder fixing member; S3. Shake the crank-rocker mechanism according to the depth of the soil sample to be collected. The inner cylinder fixing component drives the sampling inner cylinder to be lowered until the predetermined depth is reached. Then reverse the crank-rocker mechanism to bring out the sampling inner cylinder. Open the inner cylinder fixing component, take out the sampling inner cylinder, and use the flat-head rod to push out the soil sample in the sampling inner cylinder. The sampling process is completed. S4. Assemble the monitoring inner cylinder according to the monitoring depth, lower the monitoring inner cylinder into the hole drilled in step 3, and use a traction device to tie the monitoring probe to the bottom of the monitoring inner cylinder. The monitoring probe can be taken out at any time for data extraction.

[0015] Compared to existing technologies, the advantages of this invention are as follows: This invention provides a multi-element sampling and monitoring device for sandbar wetlands and its usage method, enabling integrated sampling and monitoring in sandbar wetlands. The device employs a crank-rocker mechanism, which solves the problem of difficulty in manual sampling at deep depths in sandbar wetlands. Furthermore, the coaxial reversal mechanism counteracts the horizontal force of the crank, ensuring stable operation of the inner cylinder; simultaneously, it doubles the force applied to the inner cylinder during its vertical movement. The device uses threaded inner cylinder units for groundwater monitoring, and these units can be combined according to different detection depths, improving the device's adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the inner cylinder unit in one embodiment of the present invention; Figure 3 This is another structural schematic diagram of the inner cylinder unit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the monitoring hole in an embodiment of the present invention; Figure 5 This is a schematic diagram of the crank-rocker mechanism in an embodiment of the present invention; In the diagram, 1. Positioning outer cylinder; 2. Support foot; 3. Inner cylinder unit; 4. Funnel-shaped layered cylinder; 5. Monitoring hole; 6. Inner cylinder fixing component; 7. Crank rocker mechanism; 8. Variable direction gear; 9. Connecting rod; 10. Rocker arm; 11. Monitoring probe; 12. Sampling inner cylinder; 13. Pinion gear; 14. Main gear; 15. Traction component; 16. Triangular support frame. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0018] This invention provides a multi-element sampling and monitoring device for sandbar wetlands, such as... Figure 1-5 As shown, it includes a positioning outer cylinder 1. The bottom of the positioning outer cylinder 1 is connected to four support feet 2 by bolt assembly. The support angle of the support feet 2 can be adjusted by bolt assembly, so that the positioning outer cylinder 1 has good stability in actual application.

[0019] It also includes a sampling inner cylinder 12, which can be partially placed inside the positioning outer cylinder 1 and can move up and down along the inside of the positioning outer cylinder 1.

[0020] The system also includes a monitoring inner cylinder, which can be partially placed inside the positioning outer cylinder 1 and can move up and down along the interior of the positioning outer cylinder 1. The monitoring inner cylinder is composed of several inner cylinder units 3 connected together. The inner cylinder unit 3 can be cylindrical and can be made of PVC pipe. Adjacent inner cylinder units 3 are threaded together, with external and internal threads respectively provided at both ends of the inner cylinder unit 3. The number of inner cylinder units 3 can be increased or decreased according to task requirements. Furthermore, the top of the top inner cylinder unit 3 adopts a closed structure, which allows the device to have good airtightness while being freely combinable. The bottom of the bottom inner cylinder unit 3 adopts a conical structure when closed, which can better penetrate underground. The entire monitoring inner cylinder has a pre-reserved hole for the monitoring probe 11 to extend into.

[0021] In some embodiments, to achieve the effect of hierarchical monitoring, such as Figure 3As shown, this is another structure of the inner cylinder unit 3. The diameter of the middle part of the inner cylinder unit 3 is smaller than the diameter of its end. A funnel-shaped layered cylinder 4 is sleeved in the middle of the inner cylinder unit 3. The top diameter of the funnel-shaped layered cylinder 4 is larger than the bottom diameter. The bottom of the funnel-shaped layered cylinder 4 is sealed and fixedly connected to the outer wall of the inner cylinder unit 3. The top of the funnel-shaped layered cylinder 4 is open. The funnel-shaped layered cylinder 4 is made of deformable material, such as tarpaulin or plastic sheeting. The interior of the funnel-shaped layered cylinder 4 is hinged to the outer wall of the inner cylinder unit 3 through several two-fold connecting rods.

[0022] Thus, during operation, the funnel-shaped stratification cylinder 4 is initially in a contracted state, similar to a closed umbrella. When the monitoring inner cylinder is lowered to a specified depth, the weight of the upper water and sand exceeds a certain pressure, causing the funnel-shaped stratification cylinder 4 to open, achieving the effect of layering water and pore water, so as to realize the monitoring of pore water and non-pore water.

[0023] Furthermore, the sampling inner cylinder 12 is equipped with graduation lines, which can meet the requirements for quantitative stratified sampling operations.

[0024] Furthermore, such as Figure 4 As shown, two monitoring holes 5 are arranged opposite to each other on both sides of the bottom of the monitoring inner cylinder, which is conducive to deep underground monitoring. The monitoring holes 5 are equipped with filters to prevent the monitoring inner cylinder from being blocked by silt. When using the probe for monitoring, the filters on the monitoring holes 5 can be changed to achieve monitoring tasks with different particle size distributions.

[0025] It also includes an inner cylinder fixing component 6 and a crank rocker mechanism 7. Both the sampling inner cylinder 12 and the monitoring inner cylinder can be fixed on the inner cylinder fixing component 6. The crank rocker mechanism 7 is used to drive the inner cylinder fixing component 6 to move up and down along the positioning outer cylinder 1.

[0026] In some embodiments, the inner cylinder fixing member 6 may be an inner cylinder fixing ring, which is placed inside the positioning outer cylinder 1 and is inserted and connected to the sampling inner cylinder 12 and the monitoring inner cylinder. The inner cylinder fixing ring may include two half-ring clips, one end of which is hinged and the other end is bolted. Thus, the sampling inner cylinder 12 and the monitoring inner cylinder can be removed and fixed by opening and closing the inner cylinder fixing ring.

[0027] Furthermore, there are two crank rocker mechanisms 7 and two inner cylinder fixing parts 6. The two crank rocker mechanisms 7 adopt a coaxial reversing mode and are connected to each other by a reversing gear 8. The two crank rocker mechanisms 7 are installed in a housing through a triangular support frame 16 and fixed on the outer wall of the positioning outer cylinder 1. The connecting rods 9 of the two crank rocker mechanisms 7 are each connected to an inner cylinder fixing part 6. A through hole is opened on the positioning outer cylinder 1 for the connecting rods 9 to pass through and move up and down.

[0028] like Figure 5As shown, during operation, cranking the rocker arm 10 of one crank-rocker mechanism 7 causes the pinion 13 to drive the main gear 14 to rotate. The main gear 14 meshes vertically with the reversing gear 8, causing the main gear of the other crank-rocker mechanism 7 to rotate in the opposite direction. This results in the two inner cylinder fixing parts 6 having the same force direction in the vertical direction, making it easier for the operator to operate. Meanwhile, the forces in the horizontal direction are opposite, increasing the stability of the device.

[0029] The method of using the aforementioned multi-element sampling and monitoring device for sandbar wetlands includes the following steps: S1. Fix the positioning outer cylinder 1 to the sandbar wetland using the support feet 2; S2. Fix the sampling inner cylinder 12 to the preset position using the inner cylinder fixing component 6; S3. Shake the crank rocker mechanism 7 according to the depth of the soil sample to be collected. Drive the sampling inner cylinder 12 to be lowered through the inner cylinder fixing part 6 until the predetermined depth is reached. Then reverse the crank rocker mechanism 7 to bring out the sampling inner cylinder 12. Open the inner cylinder fixing part 6, take out the sampling inner cylinder 12, and use the flat-head rod to push out the soil sample in the sampling inner cylinder 12. The sampling process is completed. S4. Assemble the monitoring inner cylinder according to the monitoring depth, and select a cylindrical or layered inner cylinder unit 3 according to specific needs. Lower the monitoring inner cylinder into the hole drilled in step 3 through the inner cylinder fixing piece 6. If it cannot reach the bottom, open the inner cylinder fixing piece 6 and continue to install the inner cylinder unit 3. Use the traction piece 15 to tie the monitoring probe 11 and lower it to the bottom of the monitoring inner cylinder. Connect the relevant circuit of the monitoring probe 11 and debug it. Once the monitoring probe 11 is working normally, it can work independently. The monitoring probe 11 can be removed at any time for data extraction. The traction piece is made of corrosion-resistant nylon wire.

[0030] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structures made using the contents of the present invention specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of the present invention.

Claims

1. A multi-element sampling and monitoring device for sandbar wetlands, characterized in that, include: Positioning outer cylinder; the positioning outer cylinder is provided with several supporting feet; The sampling inner cylinder is partially placed inside the positioning outer cylinder and can move up and down along the inside of the positioning outer cylinder; The monitoring inner cylinder is partially placed inside the positioning outer cylinder and can move up and down along the inside of the positioning outer cylinder; the monitoring inner cylinder is composed of several inner cylinder units connected together, and adjacent inner cylinder units can be detachably connected. Inner cylinder fixing component; both the sampling inner cylinder and the monitoring inner cylinder can be fixed to the inner cylinder fixing component; A crank-rocker mechanism; the crank-rocker mechanism is used to drive the inner cylinder fixing component to move up and down along the positioning outer cylinder; The diameter of the middle part of the inner cylinder unit is smaller than that of its end part. A funnel-shaped layered cylinder is sleeved in the middle part of the inner cylinder unit. The top diameter of the funnel-shaped layered cylinder is larger than that of its bottom. The bottom of the funnel-shaped layered cylinder is sealed and fixedly connected to the outer wall of the inner cylinder unit. The funnel-shaped layered cylinder is made of deformable material, and the interior of the funnel-shaped layered cylinder is hinged to the outer wall of the inner cylinder unit through several two-fold connecting rods.

2. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1, characterized in that, The support leg is connected to the positioning outer cylinder via a bolt assembly.

3. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1 or 2, characterized in that, The adjacent inner cylinder units are connected by threads.

4. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1 or 2, characterized in that, The bottom of the monitoring inner cylinder is provided with two monitoring holes arranged opposite each other, and the monitoring holes are provided with filter screens.

5. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1 or 2, characterized in that, The sampling inner cylinder is equipped with graduation lines.

6. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1 or 2, characterized in that, The crank-rocker mechanism is configured as two, adopting a coaxial reversing mode. The two crank-rocker mechanisms are connected by a reversing gear, and both crank-rocker mechanisms are connected to an inner cylinder fixing component.

7. The multi-element sampling and monitoring device for sandbar wetlands as described in claim 1 or 2, characterized in that, The inner cylinder fixing component is an inner cylinder fixing ring, which is placed inside the positioning outer cylinder and is interlocked with the sampling inner cylinder and the monitoring inner cylinder.

8. A method of using the multi-element sampling and monitoring device for sandbar wetlands as described in any one of claims 1-7, characterized in that, Includes the following steps: S1. Fix the positioning outer cylinder to the sandbar wetland using the support feet; S2. Fix the sampling inner cylinder to a preset position using the inner cylinder fixing member; S3. Shake the crank-rocker mechanism according to the depth of the soil sample to be collected. The inner cylinder fixing component drives the sampling inner cylinder to be lowered until the predetermined depth is reached. Then reverse the crank-rocker mechanism to bring out the sampling inner cylinder. Open the inner cylinder fixing component, take out the sampling inner cylinder, and use the flat-head rod to push out the soil sample in the sampling inner cylinder. The sampling process is completed. S4. Assemble the monitoring inner cylinder according to the monitoring depth, lower the monitoring inner cylinder into the hole drilled in step 3, and use a traction device to tie the monitoring probe to the bottom of the monitoring inner cylinder. The monitoring probe can be taken out at any time for data extraction.

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