Device and method for measuring carbon content of a seagrass bed

Abstract

This invention discloses a device and method for measuring the carbon content of seagrass beds in the field of seagrass bed carbon content measurement technology. The device includes a sinking cylinder, characterized in that: a telescopic mechanism for lowering the sinking cylinder is connected to the top of the sinking cylinder; a fixing mechanism for securing the sinking cylinder is provided at the top of the telescopic mechanism; and a sealing cylinder is connected to the bottom of the sinking cylinder. This invention accurately positions the detection mechanism using the telescopic and fixing mechanisms each time seagrass bed testing is required, preventing deviation and making the sampling position easier to control. The sealing cylinder, flushing mechanism, and sampling mechanism work in conjunction with the detection mechanism to perform sampling and testing after draining water from the water body. This method is convenient, quick, and allows for easy control of the testing range, avoiding impact on the seagrass bed, timely testing of the seagrass bed, and preventing element loss during seagrass bed sampling, resulting in more accurate test results.

Description

Technical Field

[0001] This invention relates to the field of seagrass bed carbon content measurement technology, specifically to a device and method for measuring seagrass bed carbon content. Background Technology

[0002] Large, contiguous areas of seagrass, known as seagrass beds, are habitats for many large marine organisms and even mammals, holding significant ecological importance. Seagrass beds serve as habitats and vital food chains for marine life, stabilizing near-seabed sediment and coastlines. Seagrass bed ecosystems improve seawater transparency, reduce eutrophication, and provide habitats for a wide range of marine organisms, including benthic plants and animals, deep-sea flora and fauna, epiphytes, plankton, bacteria, and parasites. Seagrass beds are also a crucial breeding ground for fish, shrimp, and crabs.

[0003] In existing technologies, the carbon content of seagrass beds is often measured by having personnel sink to the seabed to extract samples from the seagrass, which are then placed in a testing chamber to detect the carbon content. This process is very inconvenient. Furthermore, seagrass beds contain a large number of elements, and during the extraction process, some of these substances are lost in the water, affecting the test results. In addition, it is difficult for personnel to control the extraction area when using tools, which can easily lead to the removal of large areas of seagrass bed, affecting and damaging the seagrass bed.

[0004] Based on this, the present invention designs a device and method for measuring the carbon content of seagrass beds to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an apparatus and method for measuring the carbon content of seagrass beds, in order to solve the problems mentioned in the background art. In the prior art, the process of measuring the carbon content of seagrass beds often involves personnel sinking to the seabed to extract samples from the seagrass, and then placing them in a testing chamber to detect the carbon content. Seagrass beds contain a large number of elements, and during the extraction process, not only will some substances in the seagrass bed be lost in the water, affecting the test results, but it is also difficult for personnel to control the extraction area when using tools, which can easily lead to the removal of a large area of ​​seagrass bed, affecting and damaging the seagrass bed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for measuring the carbon content of seagrass beds, comprising a sinking cylinder, characterized in that: a telescopic mechanism for lowering the sinking cylinder is connected to the top of the sinking cylinder; a fixing mechanism for fixing the sinking cylinder is provided at the top of the telescopic mechanism; a sealing cylinder is connected to the bottom of the sinking cylinder; a suction mechanism for drawing air from the sealing cylinder is connected to the side wall of the sinking cylinder; a sampling mechanism for quickly sampling the seagrass bed is connected to the inner side of the sealing cylinder; a stirring mechanism for breaking up the seagrass bed after sampling is provided inside the sampling mechanism; and a detection mechanism for detecting the carbon content of the seagrass bed is connected to the outer wall of the sealing cylinder. Compared with the prior art, the beneficial effects of the present invention are:

[0007] As a further embodiment of the present invention, the telescopic mechanism includes a first floating plate, and a telescopic cylinder is fixedly connected to the bottom of the first floating plate. The bottom end of the telescopic cylinder is fixedly connected to the top of the sinking cylinder.

[0008] As a further embodiment of the present invention, the fixing mechanism includes four winding rollers, which are rotatably connected to the top four positions of the first floating plate respectively. Each winding roller has a pull rope wound on its outer surface, and each pull rope has a fixing pin fixedly connected to its outer end.

[0009] As a further embodiment of the present invention, the suction mechanism includes a suction machine, which is fixedly connected to the outer wall of the sinking cylinder, and the suction machine is connected to the sealing cylinder through a first connecting pipe;

[0010] As a further embodiment of the present invention, the sampling mechanism includes an electric cylinder, which is fixedly connected to the bottom of the sinking cylinder. A shearing cylinder is fixedly connected to the bottom end of the electric cylinder. The bottom of the shearing cylinder is a cutter used to cut and separate the seaweed bed. Two first connecting plates are fixedly connected to the outer wall of the shearing cylinder. T-shaped sliding plates are slidably connected to the inner sides of the two first connecting plates. Shearing plates are fixedly connected to the bottom of the two T-shaped sliding plates. The inner ends of the two shearing plates are cutter-shaped, and the top surfaces of the two shearing plates contact the bottom surface of the shearing cylinder to seal the shearing cylinder when closed. A bidirectional drive screw is rotatably connected inside the two first connecting plates. A drive motor is fixedly connected to the left end of the bidirectional drive screw. The drive motor is fixedly connected to the side wall of the first connecting plate. The two T-shaped sliding plates are threadedly connected to the bidirectional drive screw. The bidirectional drive screw is used to synchronously drive the two T-shaped sliding plates to move inward or outward.

[0011] As a further embodiment of the present invention, the stirring mechanism includes a first rotating rod, a plurality of first rotating rods being rotatably connected to the top of the shearing cylinder, and a plurality of pulverizing blades being fixedly connected to the outer surface of each first rotating rod. The pulverizing blades are located inside the shearing cylinder. The top end of each first rotating rod penetrates the shearing cylinder and is fixedly connected to a first gear. An internal gear ring is rotatably connected to the top of the shearing cylinder. The internal gear ring meshes with a plurality of first gears. A first motor is fixedly connected to the top end of one of the first rotating rods. The first motor is fixedly connected to the top of the shearing cylinder.

[0012] As a further embodiment of the present invention, the detection mechanism includes a detector, which is fixedly connected to the side wall of the sealing cylinder. The outer side wall of the shearing cylinder is fixedly connected to a discharge valve, which is used to discharge material into the detector. The bottom of the settling cylinder is fixedly connected to an annular water tank, and the bottom of the annular water tank is connected to the shearing cylinder through a first flexible hose.

[0013] As a further embodiment of the present invention, the top of the sealing cylinder is fixedly connected to a plurality of first vent pipes, the top of the first vent pipes passing through the first floating plate and being fixedly connected thereto.

[0014] As a further aspect of the present invention, a plurality of sound wave emitters arranged in a circular array are fixedly connected to the outer wall of the sinking cylinder, and the sound wave emitters are used to repel organisms located on the top of the seagrass bed.

[0015] The method for measuring the carbon content of seagrass beds, and the specific steps of this method are as follows:

[0016] Step 1: First, place this device on the water surface. The first floating plate will cause the bottom detection mechanism to float on the water surface. The fixing mechanism will adjust the first floating plate and the detection mechanism to the detection position and stabilize them.

[0017] Step 2: Extend the telescopic cylinder and push the bottom plate downwards, so that the bottom plate slowly approaches the bottom of the seagrass bed, and finally the sealing cylinder squeezes and seals the seagrass bed, so that a sealed cavity is formed inside the sealing cylinder.

[0018] Step 3: The suction mechanism drains the liquid from the inside of the sealed cylinder;

[0019] Step 4: After the aspiration is completed, the sampling mechanism moves downward to remove the seaweed bed located inside the sealed cylinder;

[0020] Step 5: The crushing mechanism breaks up the seaweed bed located inside the sampling mechanism to form a slurry;

[0021] Step Six: The testing agency will collect and test the slurry.

[0022] 1. This invention utilizes a telescopic and fixing mechanism to accurately position the testing mechanism each time seagrass bed testing is required, preventing it from shifting and making the sampling position easier to control. Then, a sealing cylinder, rinsing mechanism, and sampling mechanism work in conjunction with the testing mechanism to perform sampling and testing after draining water from the water body. This method is convenient, quick, and allows for easy control of the testing range, avoiding any impact on the seagrass bed. It enables timely testing of the seagrass bed, prevents element loss during seagrass bed sampling, and makes the test results more accurate.

[0023] 2. The present invention starts a first motor, which drives a first gear fixedly connected to it to rotate. The first gear drives several other first gears to rotate through an internal gear ring. The first gear drives a first rotating rod and crushing blades to rotate. The crushing blades quickly crush the seagrass bed, causing the elements in the seagrass bed to be released quickly, which makes it easier for the testing agency to detect the carbon content of the seagrass bed.

[0024] 3. In this invention, when the shearing cylinder moves upward and resets, the discharge valve on the side wall of the shearing cylinder is opened, and the detection liquid in the annular water tank is flushed into the shearing cylinder through the first hose. This flushes the slurry in the shearing cylinder and drives it to flow into the detector through the discharge valve for detection, thereby quickly and accurately detecting seagrass beds. This method is convenient and fast. Attached Figure Description

[0025] Figure 1 This is a flowchart of the method for measuring the carbon content of seagrass beds according to the present invention.

[0026] Figure 2 This is a first perspective view of the overall structure of the present invention;

[0027] Figure 3 This is a second perspective view of the overall structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the outer structure of the sinker and sealing cylinder of the present invention;

[0029] Figure 5 This is a first perspective sectional view of the inner structure of the sealing cylinder of the present invention;

[0030] Figure 6 This is a schematic diagram of the crushing mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram showing the structure and location of the detection mechanism of the present invention;

[0032] Figure 8 This is a schematic diagram of the pulverizing blade structure of the present invention.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Bottom sinker, 2. Sealing cylinder, 3. First floating plate, 4. Telescopic cylinder, 5. Winding roller, 6. Pull rope, 7. Fixing pin, 8. Suction machine, 9. First connecting pipe, 10. Electric cylinder, 11. Shearing cylinder, 12. First connecting plate, 13. T-shaped sliding plate, 14. Shearing plate, 15. Bidirectional drive screw, 16. Drive motor, 17. First rotating rod, 18. Crushing blade, 19. First gear, 20. Internal gear ring, 21. First motor, 22. Detector, 23. Discharge valve, 24. Annular water tank, 25. First vent pipe, 26. Acoustic wave transmitter. Detailed Implementation

[0035] Please see Figure 1-8 The present invention provides a technical solution: a device for measuring the carbon content of seagrass beds, including a sinking cylinder 1, a telescopic mechanism for lowering the sinking cylinder 1 connected to the top of the sinking cylinder 1, a fixing mechanism for fixing the sinking cylinder 1 at the top of the telescopic mechanism, a sealing cylinder 2 connected to the bottom of the sinking cylinder 1, a suction mechanism for slurring the contents of the sealing cylinder 2 connected to the side wall of the sinking cylinder 1, a sampling mechanism for quickly sampling the seagrass bed connected to the inside of the sealing cylinder 2, a stirring mechanism for breaking up the seagrass bed after sampling provided inside the sampling mechanism, and a detection mechanism for detecting the carbon content of the seagrass bed connected to the outer wall of the sealing cylinder 2.

[0036] As a further embodiment of the present invention, the telescopic mechanism includes a first floating plate 3, and a telescopic cylinder 4 is fixedly connected to the bottom of the first floating plate 3. The bottom end of the telescopic cylinder 4 is fixedly connected to the top of the sinking cylinder 1.

[0037] As a further embodiment of the present invention, the fixing mechanism includes four winding rollers 5, which are rotatably connected to the top four positions of the first floating plate 3 respectively. Each winding roller has a pull rope 6 wound around its outer surface, and each pull rope 6 has a fixing pin 7 fixedly connected to its outer end.

[0038] As a further embodiment of the present invention, the suction mechanism includes a suction machine 8, which is fixedly connected to the outer wall of the sinking cylinder 1, and the suction machine 8 is connected to the sealing cylinder 2 through the first connecting pipe 9.

[0039] As a further embodiment of the present invention, the sampling mechanism includes an electric cylinder 10, which is fixedly connected to the bottom of the sinking cylinder 1. A shearing cylinder 11 is fixedly connected to the bottom end of the electric cylinder 10. The bottom of the shearing cylinder 11 is a cutter used to cut and separate the seaweed bed. Two first connecting plates 12 are fixedly connected to the outer wall of the shearing cylinder 11. T-shaped sliding plates 13 are slidably connected to the inner side of the two first connecting plates 12. Shearing plates 14 are fixedly connected to the bottom of the two T-shaped sliding plates 13. The inner ends of the two shearing plates 14 are cutter-shaped, and the top surface of the two shearing plates 14 contacts the bottom surface of the shearing cylinder 11 to seal the shearing cylinder 11 when closed. A bidirectional drive screw 15 is rotatably connected inside the two first connecting plates 12. A drive motor 16 is fixedly connected to the left end of the bidirectional drive screw 15. The drive motor 16 is fixedly connected to the side wall of the first connecting plate 12. The two T-shaped sliding plates 13 are threadedly connected to the bidirectional drive screw 15. The bidirectional drive screw 15 is used to synchronously drive the two T-shaped sliding plates 13 to move inward or outward.

[0040] When it is necessary to test the carbon content of seagrass beds in a certain area, this device is first placed on the water surface. The first floating plate 3 drives the bottom detection mechanism to float on the water surface. Using the pull rope 6 at the top of the first floating plate 3, the position of the first floating plate 3 on the water surface is adjusted. The four pull ropes 6 are divided into four directions, and the first floating plate 3 and the detection mechanism are adjusted to the top of the seagrass bed to be tested. Then, the pull ropes 6 are fixed with the fixing pins 7, thereby positioning the first floating plate 3 and the bottom detection mechanism in the testing position, ensuring the accuracy of the test. This avoids the need for cranes or other equipment to conduct the test, making it convenient, fast, and cost-effective. It can also be used in large sea areas. After the detection mechanism is fixed, the telescopic cylinder 4 extends and pushes the bottom plate downward, causing the bottom plate to slowly move towards the bottom. The bottom of the seaweed bed is brought close together, ultimately causing the sealing cylinder 2 to compress and seal the seaweed bed, forming a sealed cavity inside the sealing cylinder 2. Then, the suction machine 8 is started, and the water inside the sealing cylinder 2 is extracted through the first connecting pipe 9, ensuring that the sealing cylinder 2 is free of liquid and preventing impurities in the water from interfering with the detection of the seaweed bed. Then, the electric cylinder 10 is started, pushing the shearing cylinder 11 downward. The shearing cylinder 11 surrounds the seaweed bed located inside the sealing cylinder 2, achieving the purpose of random sampling. During the downward movement of the shearing cylinder 11, the first connecting plate 12, the T-shaped sliding plate 13, and the shearing plate 14 move downward synchronously. The shearing plate 14 is located at the bottom of the shearing cylinder 11. After the shearing cylinder 11 moves into position, the drive motor 16 is started. 6. The bidirectional drive screw 15 rotates, causing the two T-shaped sliding plates 13 to move inward simultaneously, driving the two shearing plates 14 to move inward synchronously, cutting the seagrass bed that has entered the shearing cylinder 11, completing the sampling. The inner ends of the two shearing plates 14 contact each other, sealing the bottom of the shearing cylinder 11 to prevent the seagrass bed from being missed after sampling. Then, the shearing cylinder 11 begins to return to its original position. During this process, the stirring mechanism quickly breaks up the seagrass bed, forming a slurry that can be tested. When the shearing cylinder 11 and shearing plates 14 return to their original positions, the breaking mechanism has broken up the seagrass. The breaking mechanism stops, and the detection mechanism at the bottom of the sinking cylinder 1 discharges the slurry in the shearing cylinder 11 into the detection mechanism for direct testing, avoiding over-sampling of the seagrass bed. To minimize losses during the testing process and ensure timely detection, accurate test results are obtained. After the test, the two shear plates 14 are opened, and the slurry inside the testing mechanism is discharged back into the seagrass bed for replenishment. After the test, the telescopic cylinder 4 retracts the testing mechanism. During this process, water flows back into the shear cylinder 11 for self-cleaning, which is convenient and quick. The fixing mechanism is then used to retract the first floating plate 3 and the testing mechanism, completing one seagrass bed test. This allows for accurate positioning of the testing mechanism using the telescopic and fixing mechanisms each time a seagrass bed needs to be tested, preventing it from shifting and making the sampling position easier to control. The sealing cylinder 2, rinsing mechanism, and sampling mechanism work together with the testing mechanism.Sampling and testing after draining the water body is convenient, quick, and allows for easy control of the testing range, avoiding impact on the seagrass bed. Timely testing of the seagrass bed prevents element loss during sampling, resulting in more accurate test results.

[0041] As a further embodiment of the present invention, the stirring mechanism includes a first rotating rod 17, several first rotating rods 17 are rotatably connected to the top of the shearing cylinder 11, and several pulverizing blades 18 are fixedly connected to the outer surface of each first rotating rod 17. The pulverizing blades 18 are located inside the shearing cylinder 11. The top end of each first rotating rod 17 penetrates the shearing cylinder 11 and is fixedly connected to a first gear 19. An internal gear ring 20 is rotatably connected to the top of the shearing cylinder 11, and the internal gear ring 20 meshes with several first gears 19. A first motor 21 is fixedly connected to the top end of one of the first rotating rods 17. The first motor 21 is fixedly connected to the shearing cylinder 11. The top of the shearing cylinder 11; during operation, as the shearing cylinder 11 rises, it is necessary to crush the seaweed bed inside to facilitate the precipitation and detection of elements within the seaweed bed. By starting the first motor 21, the first motor 21 drives the first gear 19 fixedly connected to it to rotate. The first gear 19 drives several other first gears 19 to rotate through the internal gear ring 20. The first gear 19 drives the first rotating rod 17 and the crushing blades 18 to rotate. The crushing blades 18 quickly crush the seaweed bed, causing the elements within the seaweed bed to precipitate rapidly, which facilitates the detection of carbon content in the seaweed bed by the testing agency.

[0042] As a further embodiment of the present invention, the testing mechanism includes a testing instrument 22, which is fixedly connected to the side wall of the sealing cylinder 2. A discharge valve 23 is fixedly connected to the outer side wall of the shearing cylinder 11. The discharge valve 23 is used to discharge material into the testing instrument 22. An annular water tank 24 is fixedly connected to the bottom of the settling cylinder 1. The bottom of the annular water tank 24 is connected to the shearing cylinder 11 through a first flexible hose. During operation, since it is necessary to test the crushed seaweed, when the shearing cylinder 11 moves upward to reset, the discharge valve 23 on the side wall of the shearing cylinder 11 is opened. The testing liquid in the annular water tank 24 is flushed into the shearing cylinder 11 through the first flexible hose, which can wash the slurry in the shearing cylinder 11 and drive it to flow into the testing instrument 22 through the discharge valve 23 for testing. This allows for quick and accurate testing of the seaweed bed, which is convenient and fast.

[0043] As a further embodiment of the present invention, a plurality of first vent pipes 25 are fixedly connected to the top of the sealing cylinder 2. The top end of the first vent pipe 25 passes through the first floating plate 3 and is fixedly connected to it. During operation, when the sealing cylinder 2 is pumped out of the water inside, the pressure inside its cavity is easily too high, which may affect the detection. By connecting a plurality of first vent pipes 25 to the top of the sealing cylinder 2, after the pumping operation is carried out in the sealing cylinder 2, the first vent pipes 25 are opened to introduce gas from the outside, which is beneficial for timely detection of the seagrass bed.

[0044] As a further aspect of the present invention, a plurality of acoustic wave emitters 26 arranged in a circular array are fixedly connected to the outer wall of the sinking cylinder 1. The acoustic wave emitters 26 are used to repel organisms located on the top of the seagrass bed. During operation, as the sinking cylinder 1 and the sealing cylinder 2 move downward, organisms located in the seagrass bed may be sealed inside the sealing cylinder 2, which may affect the detection and cause biological loss. By setting a plurality of acoustic wave emitters 26 on the side wall of the sinking cylinder 1, the acoustic wave emitters 26 first disperse the fish located in the seagrass bed during the downward movement of the sinking cylinder 1, so as to avoid biological interference with the detection.

[0045] The method for measuring the carbon content of seagrass beds, and the specific steps of this method are as follows:

[0046] Step 1: First, place the device on the water surface. The first floating plate 3 will cause the detection mechanism at the bottom to float on the water surface. The fixing mechanism will adjust the first floating plate 3 and the detection mechanism to the detection position and stabilize them.

[0047] Step 2: The telescopic cylinder 4 extends and pushes the bottom plate downward, causing the bottom plate to slowly approach the bottom of the seagrass bed, ultimately causing the sealing cylinder 2 to squeeze and seal the seagrass bed, forming a sealed cavity inside the sealing cylinder 2.

[0048] Step 3: The suction mechanism discharges the liquid from the inside of the sealed cylinder 2;

[0049] Step 4: After the suction is completed, the sampling mechanism moves downward to remove the seaweed bed located in the sealed cylinder 2;

[0050] Step 5: The crushing mechanism breaks up the seaweed bed located inside the sampling mechanism to form a slurry;

[0051] Step Six: The testing agency will collect and test the slurry.

Claims

1. A device for measuring the carbon content of seagrass beds, comprising a sinking cylinder (1), characterized in that: The top of the sinking cylinder (1) is connected to a telescopic mechanism for lowering it. The top of the telescopic mechanism is provided with a fixing mechanism for fixing the sinking cylinder (1). The bottom of the sinking cylinder (1) is connected to a sealing cylinder (2). The side wall of the sinking cylinder (1) is connected to a suction mechanism for sucking the contents of the sealing cylinder (2). The inside of the sealing cylinder (2) is connected to a sampling mechanism for quickly sampling the seaweed bed. The inside of the sampling mechanism is provided with a stirring mechanism for breaking up the seaweed bed after sampling. The outside wall of the sealing cylinder (2) is connected to a detection mechanism for detecting the carbon content of the seaweed bed. The top of the sealing cylinder (2) is fixedly connected to several first vent pipes (25), and the top of the first vent pipes (25) passes through the first floating plate (3) and is fixedly connected to it; The suction mechanism includes a suction machine (8), which is fixedly connected to the outer wall of the sinking cylinder (1). The suction machine (8) is connected to the sealing cylinder (2) through the first connecting pipe (9). The sampling mechanism includes an electric cylinder (10), which is fixedly connected to the bottom of the sinking cylinder (1). A shearing cylinder (11) is fixedly connected to the bottom end of the electric cylinder (10). The bottom of the shearing cylinder (11) is a cutter used to cut the seaweed bed. Two first connecting plates (12) are fixedly connected to the outer wall of the shearing cylinder (11). T-shaped sliding plates (13) are slidably connected to the inner sides of the two first connecting plates (12). Shearing plates (14) are fixedly connected to the bottom of the two T-shaped sliding plates (13). The inner ends of the two shearing plates (14) are cutter-shaped. The top surface of the shearing plate (14) contacts the bottom surface of the shearing cylinder (11) to seal the shearing cylinder (11) when closed. The two first connecting plates (12) are rotatably connected to a bidirectional drive screw (15). The left end of the bidirectional drive screw (15) is fixedly connected to a drive motor (16). The drive motor (16) is fixedly connected to the side wall of the first connecting plate (12). The two T-shaped sliding plates (13) are threadedly connected to the bidirectional drive screw (15). The bidirectional drive screw (15) is used to synchronously drive the two T-shaped sliding plates (13) to move inward or outward.

2. The device for measuring the carbon content of seagrass beds according to claim 1, characterized in that: The telescopic mechanism includes a first floating plate (3), and a telescopic cylinder (4) is fixedly connected to the bottom of the first floating plate (3). The bottom end of the telescopic cylinder (4) is fixedly connected to the top of the sinking cylinder (1).

3. The device for measuring the carbon content of seagrass beds according to claim 2, characterized in that: The fixing mechanism includes four take-up rollers (5), which are rotatably connected to the top four positions of the first floating plate (3). Each take-up roller (5) has a pull rope (6) wrapped around its outer surface, and each pull rope (6) has a fixing pin (7) fixedly connected to its outer end.

4. The device for measuring the carbon content of seagrass beds according to claim 1, characterized in that: The stirring mechanism includes a first rotating rod (17), several first rotating rods (17) are rotatably connected to the top of the shearing cylinder (11), and several crushing blades (18) are fixedly connected to the outer surface of each first rotating rod (17). The crushing blades (18) are located inside the shearing cylinder (11). The top end of each first rotating rod (17) passes through the shearing cylinder (11) and is fixedly connected to a first gear (19). An internal gear ring (20) is rotatably connected to the top of the shearing cylinder (11). The internal gear ring (20) meshes with several first gears (19). A first motor (21) is fixedly connected to the top end of one of the first rotating rods (17). The first motor (21) is fixedly connected to the top of the shearing cylinder (11).

5. The device for measuring the carbon content of seagrass beds according to claim 1, characterized in that: The detection mechanism includes a detector (22), which is fixedly connected to the side wall of the sealing cylinder (2). The outer side wall of the shearing cylinder (11) is fixedly connected to a discharge valve (23), which is used to discharge the material into the detector (22). The bottom of the settling cylinder (1) is fixedly connected to an annular water tank (24), and the bottom of the annular water tank (24) is connected to the shearing cylinder (11) through a first flexible hose.

6. The device for measuring the carbon content of seagrass beds according to claim 1, characterized in that: Several acoustic emitters (26) arranged in a circular array are fixedly connected to the outer wall of the sinking cylinder (1). The acoustic emitters (26) are used to repel organisms located on the top of the seagrass bed.

7. A method for measuring the carbon content of seagrass beds, applicable to any of the seagrass bed carbon content measuring devices described in claims 1-6, characterized in that: The specific steps of this measurement method are as follows: Step 1: First, place the device on the water surface. The first floating plate (3) drives the bottom detection mechanism to float on the water surface. The fixing mechanism adjusts the first floating plate (3) and the detection mechanism to the detection position and stabilizes them. Step 2: Extend the telescopic cylinder (4) and push the sinking cylinder (1) downward, so that the sinking cylinder (1) slowly approaches the bottom of the seaweed bed, and finally the sealing cylinder (2) squeezes and seals the seaweed bed, so that a sealing cavity is formed inside the sealing cylinder (2); Step 3: The suction mechanism discharges the liquid inside the sealed cylinder (2); Step 4: After the aspiration is completed, the sampling mechanism moves downward to remove the seaweed bed located in the sealed cylinder (2); Step 5: The mixing mechanism breaks up the seaweed bed located in the sampling mechanism to form a slurry; Step Six: The testing agency will collect and test the slurry.

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