Mobile coastal wetland automatic sampling equipment

Abstract

The invention provides mobile coastal wetland automatic sampling equipment which comprises a sampling equipment main body, and the sampling equipment main body comprises a bearing plate and a bracket mounted on the bearing plate; the first guide component is arranged in the bracket; the sampling device is connected with the first guide component; the second guide component is mounted on the bearing plate; the third guide component is rotationally connected to the second guide component; the sample storage device is connected with the third guide component, synchronously rotates along with the third guide component and synchronously moves along with the second guide component; wherein the sampling device comprises a sampling pipe used for sampling, a sealing device capable of moving to the bottom of the sampling pipe and used for sealing the sampling pipe after sampling, a pushing assembly used for pushing out samples in the sampling pipe and a discharging pipe arranged on one side of the sampling pipe, and the discharging pipe is connected with the sample storage device. According to the invention, multi-sampling-point sampling is realized, and the sampled samples can be separately stored.

Description

Technical Field

[0001] The invention relates to the technical field of wetland sampling, in particular to a mobile coastal wetland automatic sampling device. Background Art

[0002] Wetlands are areas where the surface is too wet or where water often accumulates. Wetland ecosystems have multiple ecological functions, such as conserving water resources, purifying water quality, and maintaining biodiversity. They are an important part of natural ecosystems. In order to maintain wetland stability and repair abnormal wetland ecosystems, it is usually necessary to sample the wetland ecology. By analyzing the samples, the environmental status of the wetland ecology is determined, which facilitates ecological maintenance or restoration. Mobile coastal wetland automatic sampling equipment is an intelligent sampling tool designed specifically for coastal wetland environments. It can autonomously or semi-autonomously collect samples in complex wetland environments such as intertidal zones, salt marshes, and mangroves. It regularly collects wetland water samples, sediments, and biological samples, monitors changes in water quality parameters, and provides efficient and reliable technical means for coastal wetland protection, ecological restoration, and scientific research. It is an important tool for wetland ecosystem research.

[0003] Coastal wetlands are located in the zone where land and sea interact. They are periodically covered by tides, are covered by tidal gullies, and have soft soil that is easy to sink into. In most areas, it is difficult for people to reach and collect samples on foot, and ships cannot enter due to their deep draft. Drones equipped with mobile intelligent sampling tools will effectively obtain coastal wetland samples. In addition, the existing mobile coastal wetland automatic sampling equipment can only collect single soil and water samples from wetlands. When collecting samples from different parts of the wetland, different samples cannot be separated and sealed for storage. The mixing of soil and water samples from different sampling points will lead to distortion of key ecological data such as pollutant distribution and microbial composition, and cannot accurately reflect the ecological gradient changes in different areas of the wetland, which will undermine the spatial resolution of the research. Mixed samples mask local pollution hotspots, making it impossible to accurately locate the pollution input location. Mixed storage destroys the independence and typicality of the original samples. Summary of the Invention

[0004] In order to solve the shortcomings of existing wetland automatic sampling equipment that cannot achieve sampling at multiple sampling points and cannot separate and store sampled samples, the present invention provides a mobile coastal wetland automatic sampling equipment that can achieve sampling at multiple sampling points and separate and store sampled samples. The solution is as follows:

[0005] A mobile coastal wetland automatic sampling device, comprising:

[0006] A sampling device body, the sampling device body comprising a receiving plate and a bracket mounted on the receiving plate;

[0007] a first guide member, disposed in the bracket and movable up and down relative to the bracket;

[0008] a sampling device connected to the first guide member and moving synchronously with the first guide member;

[0009] a second guide member, mounted on the receiving plate and movable horizontally relative to the receiving plate;

[0010] a third guide member, rotatably connected to the second guide member and moving synchronously with the second guide member;

[0011] a sample storage device connected to the third guide member and synchronously rotating with the third guide member and synchronously moving with the second guide member;

[0012] Among them, the sampling device includes a sampling tube for sampling, a sealing device that can move to the bottom of the sampling tube and is used to seal the sampling tube after sampling, a pushing assembly for pushing out the sample in the sampling tube, and a discharge pipe arranged on one side of the sampling tube, and the discharge pipe is connected to the sample storage device.

[0013] Furthermore, the pushing assembly includes a counterweight iron plate and an electromagnet column. The counterweight iron plate is movably installed inside the sealing device, and the electromagnet column is fixedly installed inside the sampling tube. When the electromagnet column is energized, the counterweight iron plate moves toward the electromagnet column to achieve pushing.

[0014] Furthermore, the sealing device includes a motor 1, a gear transmission mechanism, a transmission shaft, and a sealing bottom plate. The motor 1 is mounted on the first guide component, the motor 1 is connected to the gear transmission mechanism, the gear transmission mechanism is connected to the transmission shaft, and the transmission shaft is connected to the sealing bottom plate. The motor 1 drives the sealing bottom plate to turn toward or away from the bottom of the sampling tube.

[0015] Two movable cavities are provided inside the sealed bottom plate, and a spring is provided at the inner wall of each of the two movable cavities. One end of the spring is in contact with the movable cavity, and the other end of the spring is provided with a magnetic top block. A clamping block is provided at the inner wall of each of the two movable cavities, and the outer surface of the magnetic top block is in movably contact with one side of the clamping block, and the other side of the clamping block is in movably contact with the outer surface of the counterweight iron plate, and the top surface of the counterweight iron plate is connected to a piston.

[0016] The contact points between the magnetic top block and the clamping block are both arranged as matching inclined surfaces.

[0017] Furthermore, the first guide component includes:

[0018] a first slider rail assembly;

[0019] A movable support plate, wherein the movable support plate is slidably connected to both sides of the bracket through a first slider and rail assembly; and

[0020] The lifting and loading part is fixedly installed on the top of the bracket, the lifting and loading part is connected to the movable support plate, and the lifting and loading part is used to drive the movable support plate and the sampling device to move up and down synchronously.

[0021] Furthermore, the second guide component includes:

[0022] a second slider rail assembly;

[0023] A loading plate, the loading plate being slidably connected to the receiving plate via a second slider and rail assembly; and

[0024] A horizontal loading part is fixedly mounted on the receiving plate, the horizontal loading part is connected to the loading plate, and the horizontal loading part is used to drive the loading plate, the sample storage device and the third guide part to move horizontally synchronously.

[0025] Furthermore, the third guide component includes:

[0026] A disc is located on the loading plate, and the disc is detachably connected to the sample storage device;

[0027] A base, fixedly connected to the bottom of the loading plate;

[0028] The rotary loading part is fixedly mounted on the base, the rotary loading part is connected to the disc, and is used to drive the disc and the sample storage device to rotate synchronously.

[0029] Furthermore, the lifting loading part is hydraulic cylinder 1; the horizontal loading part is hydraulic cylinder 2; and the rotating loading part is motor 2.

[0030] Furthermore, the sample storage device includes a plurality of sample storage tanks, each of which is provided with an inlet adapted to the discharge pipe, and an automatic sealing component is installed on the inlet.

[0031] Furthermore, the automatic sealing component includes a rotating column and a feed baffle, and the feed baffle is rotatably connected to the sample storage tank through the rotating column; the feed baffle and the feed port are made of magnetic materials.

[0032] Furthermore, it also includes hollow spiral rollers installed on both sides of the sampling equipment body.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The embodiment of the present invention adopts a technical solution in which the sampling device includes a sampling tube, a sealing device, a pushing assembly and a discharge tube, and the discharge tube is connected to the sample storage device, thereby realizing sampling at multiple sampling points and the sampled samples can be stored separately.

[0035] The embodiment of the present invention generates an attractive force between the electromagnet column and the counterweight iron plate, so that the counterweight iron plate drives the piston upward to push the soil, so that the soil and water enter the sample storage tank through the discharge pipe. The electromagnet column absorbs the counterweight iron plate and drives the piston to push upward, quickly pressing the soil and water samples into the sample storage tank, reducing manual intervention and improving sampling efficiency. Sample spillage or external contamination is avoided during the piston pushing process, and the magnetic attraction force automatically adapts to samples of different viscosities such as silt or mud-water mixtures to ensure complete emptying without residue.

[0036] In the embodiment of the present invention, the feed baffle is automatically pushed open when the discharge pipe is inserted. After the sample storage tank is reset, the rotating column drives the feed baffle to reset and close. The feed baffle and the feed port of the sample storage tank both adopt a magnetic structure, and there is attraction between the feed baffle and the feed port, which effectively prevents the leakage of samples or the entry of external pollutants, ensuring the purity of the samples. After the feed baffle is closed, a physical barrier is formed to prevent the sample from spilling out of the sample storage tank when the device moves or tilts, thereby maintaining the integrity of the sample. It is particularly suitable for uneven terrain such as wetlands and swamps. Even if the wetland automatic sampling device shakes or tilts, the sample storage tank can still be kept sealed. The reset and closing are completed simultaneously without manual intervention, thereby improving the work efficiency of continuous sampling, ensuring the safety of samples, and improving the reliability and convenience of wetland sampling.

[0037] The embodiment of the present invention drives the disc to rotate by the rotating loading part, thereby replacing the next sample storage tank, repeating the above operation, conveniently storing the sample sampled at another place in the new sample storage tank, automatically completing the sample storage tank replacement, and collecting samples at the next sampling point without manual intervention, which significantly improves the work efficiency of large-scale wetland sampling. The samples of each sampling point are stored separately in different sample storage tanks to avoid cross-contamination of samples at different points. The sampling tube is always in a closed state during the replacement process to prevent sample leakage or external contamination. Multiple sample storage tanks support long-term continuous sampling without the need to frequently return to process samples, thereby improving sampling reliability. The sequentially numbered sample storage tanks automatically record the sampling order, which provides convenience for subsequent laboratory analysis.

[0038] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of the wetland automatic sampling device of the present invention;

[0040] Figure 2 This is a schematic diagram of the internal structure of the wetland automatic sampling device of the present invention;

[0041] Figure 3 This is a schematic structural diagram of the connection between the sampling device and the first guide component of the present invention;

[0042] Figure 4It is a partial cross-sectional schematic diagram of the internal structure of the sealing assembly of the present invention;

[0043] Figure 5 It is a partial cross-sectional schematic diagram of the internal structure of the sealing bottom plate of the present invention;

[0044] Figure 6 This is a schematic diagram of the structure of the installation of individual components on the receiving plate of the present invention;

[0045] Figure 7 This is a schematic diagram of the internal structure of the sample storage device and the connection between the second and third guide parts of the present invention;

[0046] Figure 8 This is a schematic diagram of the internal structure of a partial sample storage tank of the present invention;

[0047] Figure 9 This is a schematic diagram of the internal structure of a partial sample storage tank of the present invention from another perspective.

[0048] In the above figures:

[0049] 100, sampling device body; 110, bracket; 120, receiving plate; 121, limited sliding cavity; 200, first guide member; 210, first slider rail assembly; 211, limited sliding rail 1; 212, limited slider 1; 220, movable support plate; 230, lifting loading unit; 300, sampling device; 310, sampling tube; 311, sampling cavity; 320, sealing device; 321, motor 1; 322, gear transmission mechanism; 3221, rotating shaft 1; 3222, driving gear; 3223, transmission gear; 323, transmission shaft; 324, sealing bottom plate; 3241, movable cavity; 325, protective cover; 330, pushing assembly; 3 31. Counterweight iron plate; 332. Electromagnetic column; 333. Spring; 334. Magnetic top block; 335. Block; 336. Piston; 340. Discharge pipe; 400. Second guide component; 410. Second slider rail assembly; 411. Second limiting rail; 412. Second limiting slider; 420. Loading plate; 430. Horizontal loading part; 500. Sample storage device; 510. Sample storage tank; 511. Feed port; 512. Automatic sealing component; 5121. Feed baffle; 5122. Rotating column; 600. Third guide component; 610. Disc; 620. Rotating loading part; 630. Second rotating shaft; 640. Base; 700. Hollow spiral drum. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] like Figures 1 to 9 As shown, an embodiment of the present invention provides a mobile coastal wetland automatic sampling device, including a sampling device body 100 and hollow spiral drums 700 installed on both sides of the sampling device body 100.

[0053] The sampling device body 100 includes a receiving plate 120 and a bracket 110 installed on the receiving plate 120. The first guide component 200 is installed in the bracket 110 and moves up and down relative to the bracket 110. The sampling device 300 is connected to the first guide component 200 and moves synchronously with the first guide component 200. The second guide component 400 is installed on the receiving plate 120 and moves horizontally relative to the receiving plate 120. The third guide component 600 is rotatably connected to the second guide component 400 and moves synchronously with the second guide component 400. The sample storage device 500 is connected to the third guide component 600 and rotates synchronously with the third guide component 600 and moves synchronously with the second guide component 400.

[0054] The sampling device 300 includes a sampling tube 310 for sampling, a sealing device 320 that can rotate to the bottom of the sampling tube 310 and seal the sampling tube 310 after sampling, a pushing assembly 330 for pushing the sample out of the sampling tube 310, and a discharge pipe 340 provided on one side of the sampling tube 310. The discharge pipe 340 is connected to the sample storage device 500. A sampling cavity 311 with a bottom opening is defined in the sampling tube 310, and the discharge pipe 340 is in communication with the sampling cavity 311.

[0055] In this embodiment, Figure 2 As shown, the bracket 110 is an inverted U-shaped structure and is fixed to the receiving plate 120 by welding or bolt connection. Figure 2 、 6As shown, the receiving plate 120 is located at the bottom of the sampling device body 100 , and a clearance hole is opened at a position where the receiving plate 120 and the sampling device 300 are opposite to each other to facilitate the sampling device 300 to pass through.

[0056] In this embodiment, the first guide member 200 includes a movable support plate 110, a first slider rail assembly 210 and a lifting loading portion 230. The movable support plate 110 is slidably connected to both sides of the bracket 110 through the first slider rail assembly 210. The first slider rail assembly 210 includes a limiting rail 1 211 and a limiting slider 1 212. Figure 3 As shown, two limiting sliders 212 are respectively installed on the left and right ends of the movable support plate 110, and two limiting slide rails 211 are respectively installed on the left and right side walls of the bracket 110. The lifting and loading part 230 is used to drive the movable support plate 110 and the sampling device 300 to move up and down synchronously. In this embodiment, the lifting and loading part 230 is a hydraulic cylinder 1, which is fixedly installed on the top of the bracket 110, and the movable end of the hydraulic cylinder 1 is connected to the movable support plate 110. This can make the movable support plate 110 stably move up and down, and the movable support plate 110 stably drives the sampling tube 310 and the sealing device 320 to move up and down synchronously. The sampling tube 310 is inserted into the soil to be sampled, and the sampled soil and water enter the sampling cavity 311.

[0057] The sealing device 320 is used to seal the sampling tube 310 after sampling. Figure 3 As shown, the sealing device 320 includes a motor 321, a gear transmission mechanism 322, a transmission shaft 323, a protective sleeve 325, and a sealing base plate 324. The fixed end of the motor 321 is fixedly connected to the movable support plate 110. The output end of the motor 321 is connected to the gear transmission mechanism 322, which is in turn connected to the transmission shaft 323. The transmission shaft 323 is fixedly connected to the sealing base plate 324. A protective sleeve 325 is sheathed around the transmission shaft 323, the top end of which is connected to the movable support plate 110. In this embodiment, the gear transmission mechanism 322 includes a rotating shaft 3221, a driving gear 3222, and a transmission gear 3223. During operation, the motor 321 drives the sealing base plate 324 toward or away from the bottom of the sampling tube 310.

[0058] The pushing assembly 330 is used to push the sample in the sampling tube 310. Figure 4 As shown, the pusher assembly 330 includes a counterweight iron plate 331 and an electromagnet column 332. The counterweight iron plate 331 is movably installed inside the sealing device 320, and the electromagnet column 332 is fixedly installed inside the sampling tube 310 and above the sampling cavity 311. Figure 5As shown, the interior of the sealed bottom plate 324 defines two movable chambers 3241. Springs 333 are mounted on the inner walls of both movable chambers 3241. A magnetic top block 334 is disposed on one end surface of each spring 333. A clamping block 335 is also disposed on the inner wall of each movable chamber 3241. The outer surfaces of the magnetic top blocks 334 are in active contact with the outer surfaces of the clamping blocks 335. The outer surfaces of the clamping blocks 335 are in active contact with the outer surfaces of the counterweight iron plate 331, allowing the clamping blocks 335 to restrict the position of the counterweight iron plate 331. A piston 336 is connected to the top surface of the counterweight iron plate 331. Furthermore, to increase the extrusion force at the contact surface, the contact points between the magnetic top blocks 334 and the clamping blocks 335 are each configured with a matching inclined surface.

[0059] Specifically, the outer surface of the counterweight iron plate 331 is in movable contact with the inner wall of the sampling cavity 311 , and the outer surface of the piston 336 is in movable contact with the inner wall of the sampling cavity 311 .

[0060] like Figure 4 As shown, discharge tube 340 is connected to the upper middle portion of sampling chamber 311. The longitudinal distance between the top surface of sampling chamber 311 and discharge tube 340 is less than or equal to the combined thickness of counterweight plate 331 and piston 336. This ensures that after the piston reaches the top surface of sampling chamber 311, the interior of sampling chamber 311 is completely emptied, leaving no residue. To utilize the gravity of the sample for smoother sample discharge, discharge tube 340 is tilted downward, i.e., the end of discharge tube 340 connected to sampling chamber 311 is higher than the end connected to sample storage device 500.

[0061] After the electromagnet column 332 is energized and becomes magnetic, an attraction is generated between the electromagnet column 332 and the counterweight iron plate 331, so that the counterweight iron plate 331 drives the piston 336 to push the soil upward, so that the soil and water enter the sample storage tank 510 in the sample storage device 500 through the discharge pipe 340. The electromagnet column 332 absorbs the counterweight iron plate 331 and drives the piston 336 to push upward, quickly pressing the soil and water samples into the sample storage tank 510, reducing manual intervention and improving sampling efficiency. The sample is prevented from being spilled or contaminated by the outside world during the pushing process of the piston 336. The magnetic attraction force automatically adapts to samples of different viscosities such as silt or mud-water mixtures to ensure complete emptying without residue.

[0062] When the motor 321 is working, the motor 321 rotates to drive the rotating shaft 3221 to rotate, and the rotating shaft 3221 drives the driving gear 3222 to rotate. The outer surface of the driving gear 3222 and the outer surface of the transmission gear 3223 engage with each other to rotate the transmission gear 3223, and the transmission gear 3223 drives the transmission shaft 323 to rotate. The transmission shaft 323 rotates in the protective cover 325, thereby conveniently driving the bottom end of the sealing bottom plate 324 to rotate with the synchronous transmission shaft 323 to realize the deflection of the sealing bottom plate 324, so that the sealing bottom plate 324 moves to the bottom of the sampling tube 310, so that the sealing bottom plate 324 seals the sampling chamber 311, and the spring 333 has elastic deformation. , so that the magnetic top block 334 squeezes the card block 335, and the two card blocks 335 limit the counterweight iron bottom plate, so that the sealing bottom plate 324 is stable in the sealing bottom plate 324 during movement, and the sampling chamber 311 is sealed to facilitate the upward recovery of the sampling tube 310, keeping the sampled soil and water in the sampling chamber 311, and effectively preventing the mud and water samples from falling off due to gravity during the lifting process. The magnetic top block 334 and the card block 335 adopt an inclined extrusion design. The more force is applied, the firmer the locking is. Even if the equipment is tilted or impacted by water flow, the stability of the counterweight iron plate 331 can still be maintained, and accidental loosening due to tides or waves can be prevented, thereby ensuring the integrity of the sample.

[0063] like Figure 6 、 7 As shown, in this embodiment, the third guide component 600 includes a disc 610, a second rotating shaft 630, a base 640 and a rotating loading unit 620. The disc 610 is located on the loading plate 420, and the sample storage device 500 is detachably connected to the disc 610. The second rotating shaft 630 is fixedly connected to the center of the disc 610. The base 640 is fixedly set at the bottom of the loading plate 420 and is used to fix the rotating loading unit 620. The rotating loading unit 620 is used to drive the disc 610 and the sample storage device 500 to rotate synchronously. In this embodiment, the rotating loading unit 620 is a second motor. The fixed end of the second motor is fixedly mounted on the base 640. The output end of the second motor is connected to the second rotating shaft 630 through a coupling. The second rotating shaft 630 is connected to the disc 610.

[0064] The connection between the disc 610 and the loading plate 420 is a movable connection, and the disc 610 can rotate relative to the loading plate 420. In this embodiment, the loading plate 420 has the same external structure as the disc 610, and a matching circular groove and circular protrusion are provided between the disc 610 and the loading plate 420 to facilitate the rotation of the disc 610 relative to the loading plate 420.

[0065] like Figure 7As shown, the sample storage device 500 includes a plurality of sample storage tanks 510, which are plugged into and connected to a disk 610 and arranged in a circular pattern. The sample storage tanks 510 are provided with an inlet 511 adapted to the discharge pipe 340, and an automatic sealing assembly 512 is installed on the inlet 511.

[0066] When the second motor is working, the second motor drives the second rotating shaft 630 to rotate, and the second rotating shaft 630 drives the disc 610 to rotate. The sample storage tank 510 corresponding to the discharge port on the sampling tube 310 is changed, and the sample storage tank 510 is replaced. The hydraulic cylinder 2 is working to push the loading plate 420 to move so that the discharge tube 340 can push the feed port 511. The above operation is repeated to facilitate the storage of samples sampled from another place in the new sample storage tank 510. The sample storage tank 510 is replaced automatically, and the sample collection of the next sampling point can be carried out without manual intervention, which significantly improves the work efficiency of large-scale wetland sampling. The samples of each sampling point are stored separately in different sample storage tanks 510 to avoid cross-contamination of samples at different points. During the replacement process, the sampling tube 310 is always in a sealed state to prevent sample leakage or external contamination. Multiple sample storage tanks 510 support long-term continuous sampling without the need to frequently return to process samples, thereby improving sampling reliability. The sequentially numbered sample storage tanks 510 automatically record the sampling order, providing convenience for subsequent laboratory analysis.

[0067] like Figure 6 、 7 As shown, in this embodiment, the second guide component 400 includes a loading plate 420, a second slider rail assembly 410, and a horizontal loading portion 430. The loading plate 420 is slidably connected to the receiving plate 120 via the second slider rail assembly 410. The second slider rail assembly 410 includes a second limiting rail 411 and a second limiting slider 412. The two second limiting sliders 412 are respectively mounted on the bottom of the loading plate 420, and the two second limiting rails 411 are respectively mounted on the receiving plate 120. The horizontal loading portion 430 is used to drive the loading plate 420, the third guide component 600, and the sample storage device 500 to move horizontally synchronously. In this embodiment, the horizontal loading portion 430 is a second hydraulic cylinder, which is fixedly mounted on the receiving plate 120 and located between the two second limiting rails 411. The movable end of the hydraulic cylinder is connected to the loading plate 420. Furthermore, in order to reduce the height of the occupied space, a limiting sliding cavity 121 is opened on the receiving plate 120, and the hydraulic cylinder 2 is fixedly installed in the limiting sliding cavity 121. The loading plate 420 is connected to the movable end of the hydraulic cylinder 2 through the base 640 fixed at the lower part of the loading plate 420.

[0068] The two movable ends of the hydraulic cylinder extend to push the upper base 640 to move horizontally, and the loading plate 420 , the disc 610 , and the sample storage tank 510 move synchronously, so that the discharge pipe 340 is inserted into the feed port 511 of the sample storage tank 510 .

[0069] Specifically, such as Figure 8 、 9 As shown, the automatic sealing component 512 includes a rotating column 5122 and a feed baffle 5121, and the feed baffle 5121 is rotatably connected to the sample tank 510 through the rotating column 5122. The feed baffle 5121 and the sample tank 510 adjacent to the feed port 511 are made of magnetic material. The feed baffle 5121 is automatically pushed open when the discharge pipe 340 is inserted. When the sample tank 510 is reset, the rotating column 5122 drives the feed baffle 5121 to reset and close. The feed baffle 5121 and the feed port 511 of the sample tank 510 both adopt a magnetic structure, and there is an attraction between the feed baffle 5121 and the feed port 511, which effectively prevents the leakage of samples or the entry of external contaminants, thereby ensuring the purity of the samples. After the feed baffle 5121 is closed, a physical barrier is formed to prevent the sample from being lost when the device moves or tilts. The liquid is spilled out of the sample storage tank 510, maintaining the integrity of the sample. The rotating column 5122 is linked to the feed baffle 5121, and no additional driving device is required. The resetting action is accurate and stable, reducing the risk of failure. It is particularly suitable for uneven terrain such as wetlands and swamps. Even if the sampling equipment body 100 shakes or tilts, the sample storage tank 510 can still be kept sealed. The resetting and closing are completed synchronously without manual intervention, which improves the work efficiency of continuous sampling, ensures the safety of samples, and improves the reliability and convenience of wetland sampling.

[0070] The structure and installation of the hollow spiral drum 700 are prior art and will not be described in detail here. The mobile coastal wetland automatic sampling device of the present invention also includes a controller, which controls the hydraulic cylinders 1 and 2 and the motors 1 and 2 in a manner that can adopt prior art and will not be described in detail here.

[0071] The workflow of the present invention is as follows:

[0072] When sampling is required in coastal wetlands, the sampling equipment body 100 is moved by the hollow spiral drum 700, which is convenient for moving on wetlands. The threaded structure of the hollow spiral drum 700 cuts into soft sediments by rotation, and uses the "thread propulsion principle" to convert vertical downward force into horizontal thrust, effectively preventing the equipment from sinking into the soft surface. The hollowness further reduces the pressure of the drum on the ground, similar to the principle of "snow propeller", so that the sampling equipment body 100 can move stably in high water content and low bearing capacity areas such as intertidal mudflats and swamps. When the sampling equipment body 100 moves to the sampling position, the controller controls the hydraulic cylinder to work, and the hydraulic The oil cylinder drives the movable support plate 110 and the two limit sliders 212 to move, and the two limit sliders 212 move correspondingly on the limit slide rail 211, so that the movable support plate 110 can be stably lifted and lowered. The movable support plate 110 stably drives the sampling tube 310 and the sealing device 320 to be lifted and lowered. The sampling tube 310 is inserted into the soil with sampling, and the sampled soil and water enter the sampling cavity 311. When the soil and water samples enter the sampling cavity 311, the gas inside the sampling cavity 311 is discharged through the discharge pipe 340, thereby controlling the motor 321 to work through the controller, and the motor 321 drives the rotating shaft 311. 221 rotates, the rotating shaft 1 3221 drives the driving gear 3222 to rotate, the outer surface of the driving gear 3222 meshes with the outer surface of the transmission gear 3223, so that the transmission gear 3223 rotates, the transmission gear 3223 drives the transmission shaft 323 to rotate, the transmission shaft 323 rotates in the protective sleeve 325, thereby synchronously driving the bottom end of the sealing bottom plate 324 to deflect, so that the sealing bottom plate 324 moves to the bottom of the sampling tube 310, so that the sealing bottom plate 324 seals the sampling chamber 311, and the spring 333 has elastic deformation, so that the magnetic top block 334 squeezes the card block 335, The two clamping blocks 335 limit the counterweight iron plate 331, so that the counterweight iron plate 331 is stable in the sealing bottom plate 324 during the movement of the sealing bottom plate 324, and the sampling chamber 311 is sealed to facilitate the upward recovery of the sampling tube 310, keeping the sampled soil and water in the sampling chamber 311, and effectively preventing the mud and water samples from falling off due to gravity during the lifting process. The magnetic top block 334 and the clamping block 335 adopt an inclined extrusion design. The more force is applied, the firmer the locking is. Even if the equipment is tilted or impacted by water flow, the stability of the counterweight iron plate 331 can still be maintained, and accidental loosening due to tides or waves can be prevented to ensure the integrity of the sample.

[0073] When the sampling tube 310 is reset, the controller controls the hydraulic cylinder 2 to work, and the hydraulic cylinder 2 drives the loading plate 420 and the two limit sliders 2 412 to push, and the two limit sliders 2 412 move correspondingly on the limit slide rail 2 411, thereby driving the disc 610 and the sample storage tank 510 above to move synchronously, so that the feed port 511 of one of the sample storage tanks 510 on the disc 610 corresponds to the insertion of the discharge pipe 340, and the discharge pipe 340 pushes the feed baffle 5121 to open, so that the feed baffle 5121 drives the rotating column 5122 to deflect the angle, and then the controller controls the electromagnet column 332 to be energized, and the electromagnet The column 332 is magnetic, and the magnetism of the corresponding surfaces of the electromagnet column 332 and the two magnetic top blocks 334 is opposite. The electromagnet column 332 and the two magnetic top blocks 334 directly generate attraction, so that the two magnetic top blocks 334 move upward to squeeze the spring 333, so that the block 335 does not limit the counterweight iron plate 331, and because the counterweight iron plate 331 is made of iron material, after the electromagnet column 332 is magnetic, attraction is generated between the electromagnet column 332 and the counterweight iron plate 331, so that the counterweight iron plate 331 drives the piston 336 to push the soil upward, so that the soil and water enter the sample storage tank 510 through the discharge pipe 340, and the electromagnet The column 332 absorbs the counterweight iron plate 331 and drives the piston 336 to push up, quickly pressing the soil and water samples into the sample storage tank 510, reducing manual intervention and improving sampling efficiency. The sample is prevented from spilling or being contaminated by the outside during the pushing process of the piston 336. The magnetic attraction automatically adapts to samples of different viscosities such as silt or mud-water mixtures to ensure complete emptying without residue. The feed baffle 5121 is automatically opened when the discharge pipe 340 is inserted. After the sample storage tank 510 is reset, the rotating column 5122 drives the feed baffle 5121 to reset and close. The feed baffle 5121 and the feed port 511 of the sample storage tank 510 both adopt a magnetic structure, and there is an adsorption barrier between the feed baffle 5121 and the feed port 511. Gravity effectively prevents sample leakage or external contaminants from entering, ensuring sample purity. After the feed baffle 5121 is closed, a physical barrier is formed to prevent samples from spilling out of the sample tank 510 when the device moves or tilts, maintaining sample integrity. The rotating column 5122 is linked to the feed baffle 5121, and no additional drive device is required. The reset action is accurate and stable, reducing the risk of failure. It is particularly suitable for uneven terrain such as wetlands and swamps. Even if the sampling device body 100 shakes or tilts, the sample tank 510 can still be kept sealed. The reset and closing are completed simultaneously without manual intervention, which improves the work efficiency of continuous sampling, ensures sample safety, and improves the reliability and convenience of wetland sampling.

[0074] The controller controls the hydraulic cylinder 2 to drive the loading plate 420 to reset, and controls the electromagnet column 332 to cut off the power, so that the counterweight iron plate 331 returns to the sealed bottom plate 324, and controls the motor 2 to work. The motor 2 drives the rotating shaft 2 630 to rotate, and the rotating shaft 2 630 drives the disc 610 to rotate, thereby replacing the next sample storage tank 510. Repeat the above operation to facilitate the storage of samples sampled at another location in the new sample storage tank 510. The sample storage tank 510 is replaced automatically, and the sample collection of the next sampling point can be carried out without manual intervention, which significantly improves the work efficiency of large-scale wetland sampling. The samples of each sampling point are stored separately in different sample storage tanks 510 to avoid cross-contamination of samples at different points. During the replacement process, the sampling tube 310 is always in a sealed state to prevent sample leakage or external contamination. Multiple sample storage tanks 510 support long-term continuous sampling without the need to frequently return to process samples, thereby improving sampling reliability. The sequentially numbered sample storage tanks 510 automatically record the sampling order, which provides convenience for subsequent laboratory analysis.

[0075] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0076] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific embodiments. Obviously, many modifications and changes can be made based on the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A mobile coastal wetland automatic sampling device, characterized in that: include: A sampling device body (100), the sampling device body (100) comprising a receiving plate (120) and a bracket (110) mounted on the receiving plate (120); a first guide component (200) disposed in the bracket (110) and movable up and down relative to the bracket (110); a sampling device (300) connected to the first guide member (200) and moving synchronously with the first guide member (200); A second guide member (400) is mounted on the receiving plate (120) and moves horizontally relative to the receiving plate (120); a third guide member (600) rotatably connected to the second guide member (400) and moving synchronously with the second guide member (400); a sample storage device (500) connected to the third guide component (600) and synchronously rotating with the third guide component (600) and synchronously moving with the second guide component (400); The sampling device (300) includes a sampling tube (310) for sampling, a sealing device (320) that can move to the bottom of the sampling tube (310) and is used to seal the sampling tube (310) after sampling, a pushing assembly (330) for pushing the sample in the sampling tube (310), and a discharge pipe (340) arranged on one side of the sampling tube (310), and the discharge pipe (340) is connected to the sample storage device (500).

2. A mobile coastal wetland automatic sampling device according to claim 1, characterized in that: The pushing assembly (330) includes a counterweight iron plate (331) and an electromagnet column (332). The counterweight iron plate (331) is movably installed inside the sealing device (320), and the electromagnet column (332) is fixedly installed inside the sampling tube (310). When the electromagnet column (332) is energized, the counterweight iron plate (331) moves toward the electromagnet column (332) to achieve pushing.

3. A mobile coastal wetland automatic sampling device according to claim 2, characterized in that: The sealing device (320) comprises a motor (321), a gear transmission mechanism (322), a transmission shaft (323), and a sealing bottom plate (324); the motor (321) is mounted on the first guide component (200); the motor (321) is connected to the gear transmission mechanism (322); the gear transmission mechanism (322) is connected to the transmission shaft (323); and the transmission shaft (323) is connected to the sealing bottom plate (324); the motor (321) drives the sealing bottom plate (324) to turn toward or away from the bottom of the sampling tube (310); Two movable chambers (3241) are provided inside the sealing bottom plate (324), and a spring (333) is provided on the inner wall of each of the two movable chambers (3241). One end of the spring (333) is in contact with the movable chamber (3241), and the other end of the spring (333) is provided with a magnetic top block (334). A clamping block (335) is provided on the inner wall of each of the two movable chambers (3241). The outer surface of the magnetic top block (334) is in movable contact with one side of the clamping block (335), and the other side of the clamping block (335) is in movable contact with the outer surface of the counterweight iron plate (331). The top surface of the counterweight iron plate (331) is connected to a piston (336).

4. The mobile coastal wetland automatic sampling device according to claim 1, characterized in that: The first guide component (200) comprises: A first slider rail assembly (210); A movable support plate (110), wherein the movable support plate (110) is slidably connected to both sides of the bracket (110) via a first slider rail assembly (210); and A lifting and loading part (230) is fixedly mounted on the top of the bracket (110), the lifting and loading part (230) is connected to the movable support plate (110), and the lifting and loading part (230) is used to drive the movable support plate (110) and the sampling device (300) to move up and down synchronously.

5. The mobile coastal wetland automatic sampling device according to claim 4, characterized in that: The second guide component (400) comprises: A second slider rail assembly (410); A loading plate (420), the loading plate (420) being slidably connected to the receiving plate (120) via a second slider rail assembly (410); and A horizontal loading part (430) is fixedly mounted on the receiving plate (120), the horizontal loading part (430) is connected to the loading plate (420), and the horizontal loading part (430) is used to drive the loading plate (420), the sample storage device (500) and the third guide component (600) to move horizontally synchronously.

6. The mobile coastal wetland automatic sampling device according to claim 5, characterized in that: The third guide component (600) comprises: A disc (610) is located on the loading plate (420), and the disc (610) is detachably connected to the sample storage device (500); A base (640) fixedly connected to the bottom of the loading plate (420); The rotating loading part (620) is fixedly mounted on the base (640), the rotating loading part (620) is connected to the disc (610), and the rotating loading part (620) is used to drive the disc (610) and the sample storage device (500) to rotate synchronously.

7. The mobile coastal wetland automatic sampling device according to claim 6, characterized in that: The lifting loading part (230) is a hydraulic oil cylinder 1; the horizontal loading part (430) is a hydraulic oil cylinder 2; and the rotating loading part (620) is a motor 2.

8. The mobile coastal wetland automatic sampling device according to claim 1, characterized in that: The sample storage device (500) comprises a plurality of sample storage tanks (510), each of which is provided with an inlet (511) adapted to the discharge pipe (340), and an automatic sealing component (512) is installed on the inlet (511).

9. The mobile coastal wetland automatic sampling device according to claim 8, characterized in that: The automatic sealing component (512) includes a rotating column (5122) and a feeding baffle (5121), and the feeding baffle (5121) is rotatably connected to the sample storage tank (510) through the rotating column (5122); the feeding baffle (5121) and the feeding port are made of magnetic materials.

10. The mobile coastal wetland automatic sampling device according to claim 1, characterized in that: It also includes hollow spiral rollers (700) installed on both sides of the sampling device body (100).

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