A method of detecting offshore sediments

Abstract

The application discloses a kind of offshore sediment detection methods, including detector, the detector includes collection tank, the collection tank is barrel-shaped tank, and bottom end is set as inverted circular platform, the bottom end of the collection tank is provided with feed inlet, the feed inlet is provided with feed ring inside, the feed ring rotation is arranged in collection end bottom, and inside is provided with feed screw groove;The collection tank is provided with extraction assembly inside, and the extraction assembly is used to extract sediment from feed inlet, and the extraction assembly includes suction plate, hydraulic tank and connecting rod, the hydraulic tank is fixedly installed on the upper end of collection tank, the connecting rod is fixedly connected at the lower end of hydraulic tank, and the lower end of connecting rod is located in the interior of hydraulic tank, and the suction plate is fixedly connected at the lower end of fixed plate;The upper end of the hydraulic tank is provided with driving assembly, and the driving assembly includes mounting plate, drive shaft and fan blade.The present application can quickly sample collection to sediment, and improve the comprehensiveness of detection sample.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of marine detection, and in particular to a nearshore sediment detection method. BACKGROUND

[0002] With the enhancement of people's environmental protection consciousness, the ecological situation of the ocean has also been concerned by people. The nearshore sediment is mainly the mechanical debris distributed in the beach and tidal flat zone, that is, the debris of different particle sizes such as sand, gravel and biological skeletons, shells and the like. The research on marine sediments is of great significance to the monitoring of marine environment and the research on marine disciplines such as marine geology, marine biology and paleoclimatology. Therefore, it is necessary to detect the nearshore sediment.

[0003] Chinese patent CN111122236A discloses a small portable nearshore sediment sampling device, which comprises an upper connecting device, an internal sampling cylinder, an external sealing sleeve and a spring sealing plate.

[0004] The above-mentioned patent cannot effectively penetrate into the interior of the sediment when collecting and sampling the nearshore sediment, resulting in that the collected sample is not comprehensive and multiple sampling may be required, thereby reducing the detection efficiency of the nearshore sediment. SUMMARY

[0005] The purpose of the present application is to solve the problem that the prior art cannot effectively penetrate into the interior of the sediment, resulting in that the collected sample is not comprehensive and multiple sampling may be required, thereby reducing the detection efficiency of the nearshore sediment, and a nearshore sediment detection method is provided.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] A nearshore sediment detection method comprises a detector, wherein the detector comprises a collection tank, the collection tank is a barrel-shaped tank, the bottom end is set as an inverted circular truncated cone, the bottom end of the collection tank is provided with a feeding port, the feeding port is provided with a feeding ring inside, the feeding ring is rotationally arranged at the bottom of the collection end, and the feeding ring is provided with a feeding screw groove inside;

[0008] The collection tank is provided with an extraction assembly inside, the extraction assembly is used for extracting the sediment from the feeding port, the extraction assembly comprises a suction plate, a hydraulic tank and a connecting rod, the hydraulic tank is fixedly installed on the upper end of the collection tank, the connecting rod is fixedly connected to the lower end of the hydraulic tank, and the lower end of the connecting rod is located inside the hydraulic tank, the suction plate is fixedly connected to the lower end of the fixed plate, and is sealingly and slidingly arranged inside the collection tank;

[0009] The upper end of the hydraulic tank is provided with a driving assembly, the driving assembly comprises a mounting plate, a driving shaft and a fan blade, the mounting plate is fixedly connected to the upper end of the hydraulic tank, a plurality of flow ports are equidistantly formed in the mounting plate, the flow port is in trapezoidal section, and the short side is upwardly arranged, the driving shaft is rotatably connected to the upper end of the mounting plate, and a plurality of fan blades are annularly fixedly connected to the upper end of the driving shaft.

[0010] Preferably, the upper end of the driving shaft is provided with a connecting assembly, the connecting assembly is used for connecting external equipment, the connecting assembly comprises a rotating rod, a connecting block and a connecting wire, the rotating rod is rotatably connected to the upper end of the driving shaft, the connecting block is rotatably arranged on the upper end of the rotating rod, and the connecting wire is fixedly connected to the upper end of the connecting block.

[0011] Preferably, the side of the hydraulic tank is provided with a floating assembly, and the floating assembly is used to drive the collection tank to float.

[0012] Preferably, the floating assembly comprises a gas tank, a gas guide pipe and a buoyancy gas bag, a plurality of gas bags are annularly arranged on the side of the hydraulic tank, the gas guide pipe is arranged on the side of the gas tank away from the hydraulic tank, the floating gas bag is annular and is sleeved on the hydraulic tank, and the gas guide block communicates with the buoyancy gas bag.

[0013] Preferably, the side of the collection tank is provided with a plurality of fixing assemblies, and the fixing assemblies are used to fix the position of the collection tank on the seabed.

[0014] Preferably, the fixing assembly comprises a mounting block, an elastic column, a fixing block and an operating block, the mounting block is fixedly connected to the side of the collection tank, the elastic column is vertically and fixedly mounted on the mounting block, the fixing block is fixedly connected to the lower end of the elastic column, and the operating block is fixedly mounted on the upper end of the elastic column.

[0015] Preferably, the bottom surface of the collection tank is provided with a mounting groove, and a baffle is fixedly connected in the mounting groove, the baffle is an arc-shaped piece, and the spacing between adjacent baffles is the same.

[0016] Preferably, a limiting ring is arranged in the feeding port, the limiting ring is fixedly connected to the inner bottom of the collection tank, and is upwardly and centrally arranged.

[0017] A method for detecting offshore sediments, comprising the steps of:

[0018] S1: transporting the detector to the position of the offshore sediments by a ship, and after determining the detection position, the detector is put into the sea;

[0019] S2: driving the fan blade to rotate through the driving shaft, so as to drive the collection tank to quickly sink, improve the moving speed of the detector, and after reaching the position, the feeding port of the detector is in contact with the sediments;

[0020] S3: The rotation of the feeding ring can drive the contacted sediment into the collection tank, and the collection tank can be driven to move downward, when sampling, the hydraulic tank drives the connecting rod and the suction plate to move up and down, so as to extract the sediment contacted by the feeding port, and the deep sediment can be collected;

[0021] S4: After completing sampling at one point, the detector is quickly collected, and multiple-point sampling is carried out by the same method, and average detection of the sediment is carried out.

[0022] Compared with the prior art, the beneficial effects of the present application are:

[0023] 1. The detector collects and samples the sediment on the seabed through the detector, the rotation of the feeding ring can drive the contacted sediment into the collection tank, and the collection tank can be driven to move downward, so as to collect the deep sediment and improve the comprehensiveness of the detection sample;

[0024] 2. When reaching the seabed, the suction plate is located below the collection tank, when sampling, the hydraulic tank drives the connecting rod and the suction plate to move up and down, so as to extract the sediment contacted by the feeding port, in order to improve the moving speed of the detector in the sea, the fan is driven to rotate through the driving shaft, so as to drive the collection tank to sink and float quickly, and the sediment can be quickly sampled and collected;

[0025] 3. After completing sampling and collecting of the near-sea sediment, in order to ensure that the detector can float quickly and collect the sample, the floating assembly ensures that the detector floats;

[0026] 4. Since the seabed of the seabed is soft, in order to ensure that the detector can stably stand on the seabed, the fixing assembly on the side plays a fixing role for the detector, so as to ensure the collection of the seabed sediment;

[0027] 5. Since there are many sediments on the seabed, in order to avoid that the large-volume sediment is blocked in the feeding port at the bottom of the collection tank, the multiple baffles block the sediment, and the multiple baffles can effectively support and assist the collection tank. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a front structure diagram of the detector of the near-sea sediment detection method proposed in the present application;

[0029] Figure 2 It is a sectional view of the detector of the near-sea sediment detection method proposed in the present application;

[0030] Figure 3 It is a partial structure diagram of the detector of the near-sea sediment detection method proposed in the present application;

[0031] Figure 4 The detector fixing assembly structure diagram of the offshore sediment detection method is shown in the figure.

[0032] Figure 5 The detector floating assembly structure diagram of the offshore sediment detection method is shown in the figure.

[0033] In the figure: 1 collection tank, 2 feeding ring, 3 extraction assembly, 31 suction plate, 32 hydraulic tank, 33 connecting rod, 4 driving assembly, 41 mounting plate, 42 driving shaft, 43 fan blade, 5 connecting assembly, 51 rotating rod, 52 connecting block, 53 connecting wire, 6 floating assembly, 61 gas tank, 62 gas guide pipe, 63 buoyancy airbag, 7 fixing assembly, 71 mounting block, 72 elastic column, 73 fixing block, 74 operating block, 8 baffle, 9 limiting ring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0035] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present application are only for the convenience of clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship is also considered as the implementation scope of the present application without substantial change of the technical content.

[0036] Referring to Figures 1-5 An offshore sediment detection method includes a detector, which collects and samples the sediment on the seabed through the detector to detect the sediment. The detector includes a collection tank 1, which is a barrel-shaped tank with a rounded-trapezoidal bottom end. The bottom end of the collection tank 1 is provided with a feeding port, and the feeding port is provided with a feeding ring 2 inside. The feeding ring 2 is rotatably arranged at the bottom of the collection end and is provided with a feeding thread groove inside. The rotatably arranged feeding ring 2 can drive the contacted sediment into the inside of the collection tank 1, and at the same time, can drive the collection tank to move downward, so as to collect the deep layer sediment, improve the comprehensiveness of the detection sample, and improve the efficiency of the sample collection.

[0037] The inside of the collecting tank 1 is provided with an extraction assembly 3 for extracting the sediments from the feed inlet, the extraction assembly 3 comprises a suction plate 31, a hydraulic tank 32 and a connecting rod 33, the hydraulic tank 32 is fixedly installed on the upper end of the collecting tank 1, the connecting rod 33 is fixedly connected to the lower end of the hydraulic tank 32, and the lower end of the connecting rod 33 is located inside the hydraulic tank 32, the suction plate 31 is fixedly connected to the lower end of the fixed plate and is sealingly and slidingly arranged inside the collecting tank 1, in order to ensure the rapid collection of the sample, when reaching the seabed, the suction plate 31 is located below the collecting tank 1, when sampling, the hydraulic tank 32 drives the connecting rod 33 and the suction plate 31 to move up and down, thereby extracting the sediments contacted by the feed inlet, improving the efficiency of sample collection.

[0038] The upper end of the hydraulic tank 32 is provided with a driving assembly 4, the driving assembly 4 comprises a mounting plate 41, a driving shaft 42 and a plurality of fan blades 43, the mounting plate 41 is fixedly connected to the upper end of the hydraulic tank 32, a plurality of flow ports are equidistantly formed on the mounting plate 41, the flow port is trapezoidal in cross section, and the short side is upwardly arranged, the driving shaft 42 is rotatably connected to the upper end of the mounting plate 41, and a plurality of fan blades 43 are annularly fixedly connected to the upper end of the driving shaft 42, in order to improve the moving speed of the detector in the ocean, the fan blades 43 are driven to rotate by the driving shaft 42, thereby driving the collecting tank 1 to quickly sink and float, thereby improving the collection efficiency.

[0039] In the embodiment applying the above technical scheme, the sediments on the seabed are collected and sampled by the detector, the rotationally arranged feed ring 2 can drive the contacted sediments to enter the inside of the collecting tank 1, and can also drive the collecting tank 1 to move downward, thereby collecting the sediments in the deep layer and improving the comprehensiveness of the detection sample, when reaching the seabed, the suction plate 31 is located below the collecting tank 1, when sampling, the hydraulic tank 32 drives the connecting rod 33 and the suction plate 31 to move up and down, thereby extracting the sediments contacted by the feed inlet, in order to improve the moving speed of the detector in the ocean, the fan blades 43 are driven to rotate by the driving shaft 42, thereby driving the collecting tank 1 to quickly sink and float, the present application can quickly sample and collect the sediments, and the comprehensiveness of the detection sample is improved.

[0040] In the preferred technical scheme of the present embodiment, the upper end of the driving shaft 42 is provided with a connecting assembly 5 for connecting external equipment, the detector is generally transferred to the designated position by a ship, and the detector is placed and recovered through the connecting assembly 5, the connecting assembly 5 comprises a rotating rod 51, a connecting block 52 and a connecting wire 53, the rotating rod 51 is rotatably connected to the upper end of the driving shaft 42, the connecting block 52 is rotatably arranged on the upper end of the rotating rod 51, and the connecting wire 53 is fixedly connected to the upper end of the connecting block 52, the connecting wire 53 is used for controlling the elements on the detector, and the rotating rod 51 is used for connecting with the driving assembly 4, thereby moving and recovering the detector;

[0041] The side of the hydraulic tank 32 is provided with a floating assembly 6 for driving the collection tank 1 to float, so as to ensure that the detector can float quickly and collect samples after offshore sediments are collected due to the increase in overall weight.

[0042] The floating assembly 6 comprises a gas tank 61, a gas guide pipe 62 and a buoyancy air bag 63. The plurality of air bags are annularly arranged on the side of the hydraulic tank 32. The gas guide pipe 62 is arranged on the side of the gas tank 61 away from the hydraulic tank 32. The floating air bag is annular and is sleeved on the hydraulic tank 32. The gas guide pipe 62 is in communication with the buoyancy air bag 63. After the collection is completed, the compressed gas in the gas tank 61 is guided into the buoyancy air bag 63 through the gas guide pipe 62, so that the buoyancy air bag 63 is inflated and expanded, thereby driving the entire detector to float up by the buoyancy of the gas. After the sampling and collection are completed, the gas in the buoyancy air bag 63 is extracted, so that the buoyancy air bag 63 is retracted.

[0043] The side of the collection tank 1 is provided with a plurality of fixing assemblies 7 for fixing the position of the collection tank 1 on the seabed. Since the seabed is relatively soft, the fixing assemblies 7 on the side of the collection tank 1 can ensure that the detector can stand stably on the seabed, thereby ensuring the collection of sediments on the seabed.

[0044] The fixing assembly 7 comprises a mounting block 71, an elastic column 72, a fixing block 73 and an operating block 74. The mounting block 71 is fixedly connected to the side of the collection tank 1. The elastic column 72 is vertically and fixedly installed on the mounting block 71. The fixing block 73 is fixedly connected to the lower end of the elastic column 72. The operating block 74 is fixedly installed on the upper end of the elastic column 72. When the detector reaches the seabed, the operating block 74 drives the elastic column 72 to extend elastically, so that the fixing block 73 is nailed into the seabed. A plurality of fixing blocks 73 can fix the position of the detector on the seabed and support the detector, thereby ensuring the normal sampling of the detector.

[0045] The bottom surface of the collection tank 1 is provided with a mounting groove. A baffle 8 is fixedly connected in the mounting groove. The baffle 8 is an arc-shaped piece, and the spacing between adjacent baffles 8 is the same. Since there are many sediments on the seabed, the baffles 8 can block the large-volume sediments from being blocked in the feed inlet at the bottom of the collection tank 1. Meanwhile, the baffles 8 can effectively support and assist the collection tank 1.

[0046] A limiting ring 9 is arranged in the feed inlet. The limiting ring 9 is fixedly connected to the inner lower end of the collection tank 1 and is inclined upward toward the middle. The limiting ring 9 is used to prevent the collected sediments from falling. The upwardly inclined limiting ring 9 blocks the sediments inside.

[0047] A kind of offshore sediment detection method, comprising the steps of:

[0048] S1: by ship, the detector is transported to the location of offshore deposition, after determining the detection position, the detector is launched into the sea;

[0049] S2: by driving shaft 42, the fan blade 43 is rotated, so as to drive the collection tank 1 to sink quickly, improve the moving speed of the detector, after reaching the position, the detector inlet is contacted with the deposit;

[0050] S3: the rotation of the feed ring 2 can drive the contacted deposit into the collection tank 1, and the collection tank 1 can be driven to move downward, when sampling, the hydraulic tank 32 drives the connecting rod 33 and the suction plate 31 to move up and down, so as to extract the deposit contacted by the inlet, to ensure that the deep deposit is collected;

[0051] S4: after completing sampling at one place, the detector is collected quickly, and multiple-point sampling is carried out by the same method, to carry out average detection of the deposit.

[0052] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can replace or change the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A method of offshore sediment detection comprising a detector, characterised in that, The detector comprises a collecting tank (1), which is a barrel-shaped tank and is provided with a reverse circular truncated cone-shaped bottom end, the bottom end of the collecting tank (1) is provided with a feeding port, the feeding port is internally provided with a feeding ring (2), the feeding ring (2) is rotationally arranged at the bottom end of the collecting end, and the feeding ring (2) is internally provided with a feeding screw groove; The collecting tank (1) is internally provided with an extraction assembly (3), the extraction assembly (3) is used for extracting the precipitate from the feeding port, the extraction assembly (3) comprises a suction plate (31), a hydraulic tank (32) and a connecting rod (33), the hydraulic tank (32) is fixedly installed on the upper end of the collecting tank (1), the connecting rod (33) is fixedly connected to the lower end of the hydraulic tank (32), and the lower end of the connecting rod (33) is located in the hydraulic tank (32), and the suction plate (31) is fixedly connected to the lower end of the fixed plate and is sealingly and slidingly arranged in the collecting tank (1); The upper end of the hydraulic tank (32) is provided with a driving assembly (4), the driving assembly (4) comprises a mounting plate (41), a driving shaft (42) and a fan blade (43), the mounting plate (41) is fixedly connected to the upper end of the hydraulic tank (32), a plurality of flow ports are equidistantly formed in the mounting plate (41), the flow ports are trapezoidal in cross section, and the short sides are upwardly arranged, the driving shaft (42) is rotationally connected to the upper end of the mounting plate (41), and a plurality of fan blades (43) are annularly fixedly connected to the upper end of the driving shaft (42); A plurality of fixing assemblies (7) are arranged on the side edges of the collecting tank (1), and the fixing assemblies (7) are used for fixing the position of the collecting tank (1) on the seabed; The fixing assembly (7) comprises a mounting block (71), an elastic column (72), a fixing block (73) and an operating block (74), the mounting block (71) is fixedly connected to the side edge of the collecting tank (1), the elastic column (72) is vertically and fixedly installed on the mounting block (71), the fixing block (73) is fixedly connected to the lower end of the elastic column (72), and the operating block (74) is fixedly installed on the upper end of the elastic column (72); The method comprises the following steps: S1: the detector is transported to the position of offshore precipitation by a ship, and after the detection position is determined, the detector is put into the sea; S2: the fan blades (43) are driven to rotate by the driving shaft (42), so that the collecting tank (1) quickly sinks, the moving speed of the detector is improved, and the feeding port of the detector contacts the precipitate after reaching the position; S3: the rotationally arranged feeding ring (2) can drive the contacted precipitate into the collecting tank (1), and can also drive the collecting tank (1) to move downward, when sampling, the hydraulic tank (32) drives the connecting rod (33) and the suction plate (31) to move up and down, so that the precipitate contacted by the feeding port is extracted, and the deep precipitate is collected; S4: after one sampling is completed, the detector is quickly collected, and multiple-point sampling is carried out by the same method, and average detection of the precipitate is carried out.

2. A method of detecting offshore sediments according to claim 1, characterized in that, The upper end of the driving shaft (42) is provided with a connecting assembly (5) for connecting external equipment, the connecting assembly (5) comprises a rotating rod (51), a connecting block (52) and a connecting wire (53), the rotating rod (51) is rotatably connected to the upper end of the driving shaft (42), the connecting block (52) is rotatably arranged on the upper end of the rotating rod (51), and the connecting wire (53) is fixedly connected to the upper end of the connecting block (52).

3. A method of detecting offshore sediments according to claim 1, wherein, The side of the hydraulic tank (32) is provided with a floating assembly (6) for driving the collection tank (1) to float.

4. A method of detecting offshore sediments according to claim 3, wherein, The floating assembly (6) comprises an air tank (61), an air guide pipe (62) and a buoyancy air bag (63), a plurality of air bags are annularly arranged on the side of the hydraulic tank (32), the air guide pipe (62) is arranged on the side of the air tank (61) away from the hydraulic tank (32), the buoyancy air bag (63) is annular and is sleeved on the hydraulic tank (32), and the air guide pipe (62) communicates with the buoyancy air bag (63).

5. A method of detecting offshore sediments according to claim 1, wherein The bottom surface of the collection tank (1) is provided with a mounting groove, the inside of the mounting groove is fixedly connected with a baffle (8), the baffle (8) is an arc-shaped piece, and the spacing between adjacent baffles (8) is the same.

6. A method of detecting offshore sediments according to claim 1, wherein, The inside of the feeding port is provided with a limiting ring (9), the limiting ring (9) is fixedly connected to the inside of the lower end of the collection tank (1) and is inclined upward to the middle part.

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