A sediment sampling device for marine engineering

Abstract

The present invention discloses a sediment sampling device for marine engineering, which relates to the technical field of sediment sampling devices, and includes a device frame, a plurality of reel brackets are connected to the side wall of the device frame, a sampling device reel assembly for sampling and collecting samples is installed on the plurality of reel brackets, and a swing reduction unit that can reduce the sampling swing is installed on the sampling device reel assembly. In the present invention, the reel is unwound by rotating the reel wheel, and the sediment sampling tube is lowered to the seabed, and then the sediment sampling tube is automatically drilled, sampled and sealed, so as to complete the automatic sampling of sediment in the deep sea area, and the setting of the swing reduction unit enables the sampling device reel assembly to reduce the swing, reduce the influence of the underwater water flow on the sampling device reel assembly, and thus make the sampling position more accurate, and then it can be judged where the sample is located on the seabed, which is convenient for accurate sampling.

Description

Technical Field

[0001] The invention relates to the technical field of sediment sampling devices, and in particular to a sediment sampling device for marine engineering. Background Art

[0002] Marine engineering refers to new construction, reconstruction, and expansion projects that are built for the purpose of developing, utilizing, protecting, and restoring marine resources, with the main body of the project located on the seaward side of the coastline. It is generally divided into two parts: resource development technology and equipment and facility technology. Before the construction of marine engineering buildings and facilities, it is often necessary to sample and test the water, sediment, and organisms in the surrounding sea areas in order to explore and speculate the impact of the construction on the surrounding sea environment.

[0003] The existing method of sampling marine sediment is mostly manual sampling, which requires relevant personnel to dive for sampling. This sampling process is cumbersome and inconvenient, and is prone to danger. There are also methods of sampling using a sling, but when using a sling, the sling will tilt due to the flow of underwater water, resulting in uncertainty in the sampling position on the seabed, and it is impossible to determine where the sample is located on the seabed. Therefore, in order to solve the above problems, the present application proposes a sediment sampling device for marine engineering. Summary of the invention

[0004] The purpose of the present application is to provide a sediment sampling device for marine engineering to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a sediment sampling device for marine engineering, comprising a device frame, a plurality of reel brackets are connected to the side walls of the device frame, a sampling device hanging reel assembly for sampling and collecting samples is installed on the plurality of reel brackets, a sampling device hanging reel assembly is installed with a swing reduction unit that can reduce the sampling swing amplitude, a sediment sampling barrel is installed at the bottom end of the lowest hanging reel rod, and a sediment automatic sampling assembly is installed in the sediment sampling barrel.

[0006] By means of the above structure, through the setting of the sampling device hoisting assembly and the automatic sediment sampling assembly, the sediment sampling tube can be automatically lowered to dive to the seabed, and then the automatic sediment sampling assembly can perform automatic sampling. By setting the swing reduction unit, when the hoisting rod is lowered, it will automatically maintain a vertical connection with each other with the help of the swing reduction unit, thereby reducing the swing of the sediment sampling tube and reducing the influence of the seabed undercurrent on the sampling work, thereby making the sampling position more accurate, and then it can be determined where the sample is specifically located on the seabed, which is convenient for accurate sampling.

[0007] Preferably, the sampling device hanging roll assembly includes a hanging roll shaft rotatably connected to the multiple roll brackets, both ends of the hanging roll shaft are connected to hanging roll wheels, a square hanging roll is fixedly sleeved on the hanging roll wheel, and multiple hanging roll rods rotatably connected to each other are installed on the square hanging roll, and the hanging roll rod located at the top is connected to the side wall of the square hanging roll.

[0008] Furthermore, by setting up the hoisting reel rod, the swing amplitude reduction unit and the automatic resetting unit, the rotatable square hoisting reel drum drives the hoisting reel rod to realize reeling and unreeling, thereby facilitating the placement of the suspended sampling device into the water bottom. The hoisting reel rod has a smaller swing amplitude than the traditional hanging rope. At the same time, with the swing amplitude reduction unit, all the hoisting reel rods are connected together, which can resist underwater landing, further reduce the swing amplitude of the underwater sampling device, and ensure the smooth progress of the sampling process.

[0009] Preferably, the swing amplitude reduction unit includes two fixed baffles connected to the two sides of one of the winding rods and two limit connecting plugs connected to the two sides of the other winding rod through two magnetic mounting plates respectively, the fixed baffles are internally slidably connected with a limit connecting iron rod, the limit connecting iron rod is adapted to the limit connecting plug, the middle and bottom of the limit connecting iron rod are fixedly sleeved with movable baffles, both sides of one of the winding rods are connected to limit fixing plates, the top of the limit fixing plate is connected to a magnetic limit plate, the movable baffle is connected to the automatic reset unit, and the lengths of the multiple winding rods are set to increase in sequence from top to bottom.

[0010] Furthermore, by setting the fixed retaining ring, the limit connecting iron rod, the movable retaining ring, the magnetic suction mounting plate, the limit connecting insert, the limit fixing plate and the magnetic suction limit plate, during the unwinding process, the winding rod will pass through the C-shaped reset frame, and the elastic friction pad on the C-shaped reset frame will contact the friction teeth on the friction reset plate, and the elastic friction pad will squeeze the friction teeth to make it move, so that the limit connecting iron rod is separated from the magnetic suction limit plate and inserted into the limit connecting insert, and at this time, the elastic friction pad cannot squeeze the friction teeth to make it move, and then it itself is compressed to pass through the C-shaped reset frame, and at the same time, the limit connecting iron rod is magnetically acted on the magnetic suction mounting plate. By fixing the lower position, adjacent reeling rods are kept in a relatively vertical connection relationship, and multiple reeling rods are connected as a whole to resist underwater undercurrents, thereby minimizing the swing amplitude of the bottom sampling device and ensuring the smooth progress of the sampling process. Similarly, when reeling, the limit connection iron rod will be pulled out of the limit connection plug-in cylinder and fixed by the magnetic force of the magnetic limit plate, so that adjacent reeling rods can rotate with each other for easy reeling. The lengths of multiple reeling rods are set to increase in sequence from top to bottom. The advantage of this setting is that when reeling, each reeling rod can be smoothly wound in a square shape according to its length.

[0011] Preferably, the automatic sediment sampling assembly includes a motor accommodating tube 20 installed on the top of the sediment sampling tube 25, a plurality of sand inlet holes are opened on the side wall of the sediment sampling tube 25, the top of the sediment sampling tube 25 is connected to the motor accommodating tube 20, a drilling motor 26 is connected inside the motor accommodating tube 20, the output end of the drilling motor 26 is driven and connected to a drilling shaft 27, a small rotary hole and a large rotary hole are respectively opened on the top and bottom inner walls of the sediment sampling tube 25, the bottom end of the drilling shaft 27 passes through the small rotary hole and is connected to a sediment drill 28, the sediment drill 28 is rotatably connected in the large rotary hole, a sealing unit is installed on the drilling shaft 27, the sealing unit is connected to the sediment sampling tube 25, the top of the motor accommodating tube 20 is connected to a quick release unit, and the quick release unit is connected to the hoisting rod 6 located at the bottom.

[0012] Furthermore, through the arrangement of the motor accommodating tube, the drilling motor, the sand inlet hole, the drilling shaft, the mud drill, the small rotary hole and the large rotary hole, during the unwinding process, when the mud sampling tube reaches the seabed, the drilling motor inside the motor accommodating tube will drive the drilling shaft to rotate, thereby driving the mud drill at the bottom to rotate at high speed to dig a hole, and the thrust of the power propeller assembly can make the mud sampling tube submerged in the mud on the seabed, and the surrounding mud can leak into the mud sampling tube through the sand inlet hole and accumulate, thereby realizing automatic sampling of mud.

[0013] Preferably, an automatic reset unit for changing the connection status of the two connected hoisting rods is installed on the device frame, and the automatic reset unit includes a friction reset plate connected to the side walls of the two movable retaining rings, and a plurality of friction teeth are connected to the side walls of the friction reset plate. A transverse fixing frame is connected to the side wall of the device frame, and a C-shaped reset frame is connected to one side of the transverse fixing frame. Elastic friction pads are connected to the inner walls on both sides of the C-shaped reset frame, and the two elastic friction pads correspond to the positions of the two friction reset plates respectively.

[0014] Furthermore, through the arrangement of the friction reset plate, friction teeth, transverse fixing frame and C-shaped reset frame, when unwinding, the elastic friction pad on the C-shaped reset frame will contact the friction teeth on the friction reset plate, thereby driving the movable baffle ring to move through the friction reset plate, thereby realizing automatic connection and release of the hanging and winding device, without the need for manual operation by the staff, which is very convenient.

[0015] Preferably, the sealing unit includes a sun gear fixedly sleeved on the drilling shaft, a plurality of planetary gears are rotatably connected to the top inner wall of the device frame, and the plurality of planetary gears are all meshed with the sun gear, a reduction gear ring is rotatably connected to the top inner wall of the device frame, and the plurality of planetary gears are all meshed with the reduction gear ring, a bottom stabilizing ring is rotatably connected to the bottom inner wall of the device frame, a plurality of sealing connecting plates are connected to the bottom of the reduction gear ring and the top of the bottom stabilizing ring, a plurality of sealing spring rods are connected to the side walls of the sealing connecting plates, the telescopic ends of the plurality of sealing spring rods on the same side are connected to the same arc-shaped sealing plate, the positions of the plurality of arc-shaped sealing plates respectively correspond to the positions of the plurality of sand inlet holes, and the side walls of the arc-shaped sealing plates are all connected to side wing sealing plates.

[0016] Furthermore, the side sealing plates can seal the gap when the arc-shaped sealing plates are closed, thereby further improving the sealing performance. Through the arrangement of the sun gear, planetary gears, reduction gear ring, sealing connecting plate, sealing spring rod, arc-shaped sealing plate, and bottom stabilizing ring, the rotating drilling shaft can drive the reduction gear ring to decelerate rotation through the sun gear and the planetary gear, thereby driving multiple arc-shaped sealing plates to move slowly along the arc-shaped inner wall of the sediment sampling tube through the sealing connecting plate and the sealing spring rod until the arc-shaped sealing plate completely covers the sand inlet hole, and the sediment sampling tube is filled with seabed sediment, thereby achieving the sealing of the sediment sampling tube to prevent sediment from leaking out when it is rolled up and floated. At this time, the arc-shaped sealing plate is slightly offset into the sand inlet hole under the elastic force of the sealing spring rod, so that the arc-shaped sealing plate and the sand inlet hole fit more closely.

[0017] Preferably, the quick-release unit includes a mounting threaded barrel connected to the top of the motor accommodating barrel and a triangular bottom mounting plate rotatably sleeved on the motor accommodating barrel, a mounting threaded rod is threaded in the mounting threaded barrel, the top of the mounting threaded rod is connected to the triangular top mounting plate, three mounting claws are rotatably connected to the side wall of the triangular top mounting plate, three mounting slots are opened on the side wall of the triangular bottom mounting plate, and the mounting claws correspond to the positions of the mounting slots.

[0018] Furthermore, by installing the threaded rod, the threaded barrel, the triangular bottom mounting plate, the mounting claws and the mounting slot, after the winding is completed, the three mounting claws can be rotated to pull the mounting claws out of the mounting slots, and then the mounting threaded barrel can be rotated to separate it from the mounting threaded rod, so that the partial structure of the sampling device can be removed separately, thereby realizing quick disassembly and assembly, simple operation, and facilitating the delivery of mud and sand to relevant departments for inspection. At the same time, the mutual cooperation of the threaded rod, the threaded barrel and the three mounting claws can improve the stability of the connection of the sampling device, so that the device has sufficient connection strength at the bottom of the water to resist undercurrents.

[0019] Preferably, a plurality of power device fixing frames are connected to the side walls of the triangular bottom mounting plate, and a power propeller assembly is connected to the power device fixing frames.

[0020] Furthermore, through the setting of the power device fixing frame and the power propeller assembly, during the unwinding process, the power propeller assembly distributed around the triangular bottom mounting plate will operate and generate a certain thrust to accelerate the diving of the sediment sampling tube, speed up the sampling process, and provide auxiliary thrust for sediment drilling.

[0021] In summary, the technical effects and advantages of the present invention are as follows:

[0022] 1. In the present invention, the device is easy to use and simple to operate. The device can be placed on a ship, unrolled by rotating the reel wheel, and the sediment sampling tube is lowered to the seabed. The sediment sampling tube then automatically drills holes, samples and seals, thereby completing the automatic sampling of sediment in the deep sea area. By reducing the setting of the swing unit, the reel assembly of the sampling device can reduce the swing amplitude, reduce the influence of the underwater water flow on the reel assembly of the sampling device, and thus make the sampling position more accurate, and then it can be judged where the sample is specifically located on the seabed, which is convenient for accurate sampling.

[0023] 2. In the present invention, when unwinding, the power propeller assembly will operate to generate thrust to accelerate the diving of the sediment sampling tube. When the sediment sampling tube reaches the seabed, the drilling motor inside the motor accommodating tube will drive the drilling shaft to rotate, driving the sediment drill at the bottom to rotate at high speed to dig holes. With the thrust of the power propeller assembly, the sediment sampling tube can be immersed in the sediment on the seabed, and the surrounding sediment can leak into the sediment sampling tube through the sand inlet hole and accumulate, thereby realizing automatic sampling of sediment.

[0024] 3. In the present invention, the rotating drilling shaft will drive multiple arc-shaped sealing plates to move until the sand inlet hole is completely covered, thereby achieving the sealing of the sediment sampling tube and preventing the sediment from leaking out when it is rolled up and floated. At this time, the arc-shaped sealing plate is slightly offset into the sand inlet hole under the elastic force of the sealing spring rod, so that the arc-shaped sealing plate and the sand inlet hole are more closely matched, and the gap between the arc-shaped sealing plate and the sand inlet hole is closed with the help of the side wing sealing plate, thereby further improving the sealing performance.

[0025] 4. In the present invention, when unwinding, the hoisting and winding rod will pass through the C-shaped reset frame, and the elastic friction pad and the friction teeth will drive the limit connecting iron rod to slide, so that the limit connecting iron rod is separated from the magnetic limit plate and inserted into the limit connecting plug-in cylinder. At this time, the elastic friction pad cannot squeeze the friction teeth to make it move, and then it itself is compressed to pass through the C-shaped reset frame. At the same time, the limit connecting iron rod is fixed in position under the magnetic force of the magnetic mounting plate, so that adjacent hoisting and winding rods maintain a relatively vertical connection relationship, so that multiple hoisting and winding rods are connected into one to resist underwater undercurrents, thereby minimizing the swing amplitude of the bottom sediment sampling tube and ensuring the smooth sampling process.

[0026] 5. In the present invention, after the sediment sampling tube floats up, the mounting claw can be rotated out of the mounting slot, and then the sediment sampling tube can be removed by rotating the sediment sampling tube, thereby realizing quick disassembly and assembly of the sediment sampling tube with simple operation. At the same time, the mutual cooperation of the mounting threaded rod, the mounting threaded tube and the three mounting claws can improve the stability of the connection between the sediment sampling tube and the hoisting rod, so that the sediment sampling tube has sufficient connection strength at the bottom of the water to resist undercurrent. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the sediment sampling device;

[0029] Figure 2 It is a schematic diagram of the enlarged three-dimensional structure of the coordination of any adjacent hoisting and reeling rods;

[0030] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 4 This is a first-person perspective diagram of the automatic sediment sampling assembly with an enlarged three-dimensional structure diagram;

[0032] Figure 5 It is a second perspective magnified stereoscopic structural schematic diagram of the sediment automatic sampling component;

[0033] Figure 6 It is a schematic diagram of the enlarged three-dimensional structure of the interior of the motor housing tube;

[0034] Figure 7 This is a schematic diagram of the enlarged three-dimensional structure of the interior of the sampling tube from a first-person perspective;

[0035] Figure 8 This is a schematic diagram of the enlarged three-dimensional structure of the interior of the sampling tube from the first perspective.

[0036] Figure numerals: 1, device frame; 2, reel bracket; 3, reel shaft; 4, square reel; 5, reel wheel; 6, reel rod; 7, fixed stop ring; 8, limit connection iron rod; 9, movable stop ring; 10, magnetic mounting plate; 11, limit connection plug-in cylinder; 12, limit fixing plate; 13, magnetic limit plate; 14, friction reset plate; 15, horizontal fixing frame; 16, C-shaped reset frame; 17, triangular top mounting plate; 18, mounting threaded rod; 19 , installation threaded cylinder; 20, motor housing cylinder; 21, triangular bottom mounting plate; 22, installation claws; 23, power unit fixing frame; 24, power propeller assembly; 25, sediment sampling cylinder; 26, drilling motor; 27, drilling shaft; 28, sediment drill; 29, sun gear; 30, planetary gear; 31, reduction gear ring; 32, sealing connecting plate; 33, sealing spring rod; 34, arc sealing plate; 35, wing sealing plate; 36, bottom stabilizing ring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0038] Example: Reference Figure 1-8 A sediment sampling device for marine engineering shown in the figure includes a device frame 1, a plurality of reel brackets 2 are connected to the side wall of the device frame 1, a sampling device hoisting assembly for sampling and collecting samples is installed on the plurality of reel brackets 2, a sampling device hoisting assembly is installed with a swing reduction unit that can reduce the sampling swing amplitude, a sediment sampling barrel 25 is installed at the bottom end of the hoisting rod 6 located at the bottom, and a sediment automatic sampling assembly is installed in the sediment sampling barrel 25.

[0039] By means of the above structure, through the setting of the sampling device hoisting assembly and the automatic sediment sampling assembly, the sediment sampling tube 25 can be automatically lowered to make it dive to the seabed, and then the automatic sediment sampling assembly can automatically perform sampling. By setting the swing amplitude reduction unit, when the hoisting rod 6 is lowered, it will automatically maintain a vertical connection with each other with the help of the swing amplitude reduction unit, thereby reducing the swing amplitude of the sediment sampling tube 25 and reducing the influence of the seabed undercurrent on the sampling work, thereby making the sampling position more accurate, and then it can be determined where the sample is specifically located on the seabed, which is convenient for accurate sampling.

[0040] As a preferred implementation of this embodiment, Figure 1As shown, the sampling device hanging and reeling assembly includes a hanging and reeling shaft 3 rotatably connected to a plurality of reel supports 2, both ends of the hanging and reeling shaft 3 are connected with a hanging and reeling wheel 5, a square hanging reel 4 is fixedly sleeved on the hanging and reeling wheel 5, a plurality of hanging and reeling rods 6 rotatably connected to each other are installed on the square hanging reel 4, the hanging and reeling rod 6 at the top is connected to the side wall of the square hanging reel 4, the advantage of such arrangement is that the rotatable square hanging reel 4 can drive the hanging and reeling rod 6 to realize reeling and unreeling, thereby facilitating the placement of the suspended sampling device into the water bottom, the hanging and reeling rod 6 has a smaller swing amplitude than the traditional hanging rope, and at the same time cooperates with the swing amplitude reducing unit to connect all the hanging and reeling rods 6 together, which can resist the bottom land, further reduce the swing amplitude of the underwater sampling device, and ensure the smooth progress of the sampling process.

[0041] In this embodiment, Figure 1 , Figure 2 , Figure 3 As shown, the swing amplitude reduction unit includes two fixed baffle rings 7 connected to the two sides of one of the hoisting rods 6 and two limit connecting plugs 11 connected to the two sides of the other hoisting rod 6 through two magnetic mounting plates 10 respectively. The fixed baffle ring 7 is internally slidably connected with a limit connecting iron rod 8, and the limit connecting iron rod 8 is adapted to the limit connecting plug 11. The middle and bottom of the limit connecting iron rod 8 are fixedly sleeved with a movable baffle ring 9. Both sides of one of the hoisting rods 6 are connected to a limit fixing plate 12, and the top of the limit fixing plate 12 is connected to a magnetic limit plate 13. The movable baffle ring 9 is connected to the automatic reset unit, and the lengths of the multiple hoisting rods 6 are set to increase in sequence from top to bottom.

[0042] During the unwinding process, the winding rod 6 will pass through the C-shaped reset frame 16. The elastic friction pad on the C-shaped reset frame 16 contacts the friction teeth on the friction reset plate 14. The elastic friction pad squeezes the friction teeth to make it move, so that the limit connection iron rod 8 is separated from the magnetic limit plate 13 and inserted into the limit connection plug-in cylinder 11. At this time, the elastic friction pad cannot squeeze the friction teeth to make it move, and then it is compressed to pass through the C-shaped reset frame 16. At the same time, the limit connection iron rod 8 is fixed in position under the magnetic force of the magnetic mounting plate 10, so that the adjacent winding rods 6 maintain a relatively vertical connection. The relationship enables multiple reeling rods 6 to be connected into one to resist underwater undercurrents, thereby minimizing the swing amplitude of the bottom sampling device and ensuring smooth sampling. Similarly, when reeling, the limit connecting iron rod 8 will be pulled out from the limit connecting plug-in cylinder 11 and fixed by the magnetic force of the magnetic limit plate 13, so that adjacent reeling rods 6 can rotate with each other for easy reeling. The lengths of the multiple reeling rods 6 are set to increase in sequence from top to bottom. The advantage of this setting is that when reeling, each reeling rod 6 can be smoothly wound in a square shape according to its length.

[0043] In this embodiment, Figure 4 , Figure 5 , Figure 6As shown, the automatic sediment sampling assembly includes a motor accommodating tube 20 installed on the top of the sediment sampling tube 25, a plurality of sand inlet holes are opened on the side wall of the sediment sampling tube 25, the top of the sediment sampling tube 25 is connected to the motor accommodating tube 20, a drilling motor 26 is connected inside the motor accommodating tube 20, the output end of the drilling motor 26 is driven and connected to a drilling shaft 27, a small rotary hole and a large rotary hole are respectively opened on the top and bottom inner walls of the sediment sampling tube 25, the bottom end of the drilling shaft 27 passes through the small rotary hole and is connected to a sediment drill 28, the sediment drill 28 is rotatably connected in the large rotary hole, a sealing unit is installed on the drilling shaft 27, the sealing unit is connected to the sediment sampling tube 25, the top of the motor accommodating tube 20 is connected to a quick release unit, and the quick release unit is connected to the hoisting reel 6 located at the bottom.

[0044] During the unwinding process, when the sediment sampling tube 25 reaches the seabed, the drilling motor 26 inside the motor housing tube 20 will drive the drilling shaft 27 to rotate, driving the sediment drill 28 at the bottom to rotate at high speed to dig holes, and the thrust of the power propeller assembly 24 allows the sediment sampling tube 25 to be immersed in the sediment on the seabed, and the surrounding sediment leaks into the sediment sampling tube 25 through the sand inlet hole and accumulates, thereby realizing automatic sampling of sediment.

[0045] In this embodiment, Figure 1 , Figure 3 As shown, an automatic reset unit for changing the connection state of two connected hoisting rods 6 is installed on the device frame 1, and the automatic reset unit includes a friction reset plate 14 connected to the side walls of the two movable retaining rings 9, and a plurality of friction teeth are connected to the side walls of the friction reset plate 14. A transverse fixing frame 15 is connected to the side wall of the device frame 1, and a C-shaped reset frame 16 is connected to one side of the transverse fixing frame 15. Elastic friction pads are connected to the inner walls on both sides of the C-shaped reset frame 16, and the two elastic friction pads correspond to the positions of the two friction reset plates 14 respectively.

[0046] When unwinding, the elastic friction pad on the C-shaped reset frame 16 will contact the friction teeth on the friction reset plate 14, thereby driving the movable baffle ring 9 to move through the friction reset plate 14, thereby realizing automatic connection and release of the hanging and winding device without manual operation by the staff, which is very convenient.

[0047] In this embodiment, Figure 7 , Figure 8As shown, the sealing unit includes a sun gear 29 fixedly sleeved on the drilling shaft 27, a plurality of planetary gears 30 are rotatably connected to the top inner wall of the device frame 1, and the plurality of planetary gears 30 are all meshed with the sun gear 29, a reduction gear ring 31 is rotatably connected to the top inner wall of the device frame 1, and the plurality of planetary gears 30 are all meshed with the reduction gear ring 31, a bottom stabilizing ring 36 is rotatably connected to the bottom inner wall of the device frame 1, a plurality of sealing connecting plates 32 are connected to the bottom of the reduction gear ring 31 and the top of the bottom stabilizing ring 36, a plurality of sealing connecting plates 32 are connected to the side walls of the sealing connecting plates 32, and the telescopic ends of the plurality of sealing spring rods 33 located on the same side are connected to the same arc-shaped sealing plate 34, the positions of the plurality of arc-shaped sealing plates 34 respectively correspond to the positions of the plurality of sand inlet holes, and the side walls of the arc-shaped sealing plates 34 are all connected to wing sealing plates 35.

[0048] The flank sealing plates 35 can seal the gap when the arc-shaped sealing plates 34 are closed, further improving the sealing performance. At the same time, the rotating drilling shaft 27 will drive the reduction gear ring 31 to slow down the rotation through the sun gear 29 and the planetary gears 30, thereby driving multiple arc-shaped sealing plates 34 to slowly move along the arc-shaped inner wall of the sediment sampling tube 25 through the sealing connecting plate 32 and the sealing spring rod 33 until the arc-shaped sealing plates 34 completely cover the sand inlet hole. Seabed sediment has accumulated in the sediment sampling tube 25, thereby achieving the sealing of the sediment sampling tube 25 to prevent sediment from leaking out when it is rolled up and floated. At this time, the arc-shaped sealing plate 34 is slightly offset into the sand inlet hole under the elastic force of the sealing spring rod 33, so that the arc-shaped sealing plate 34 and the sand inlet hole fit more closely.

[0049] In this embodiment, Figure 4 , Figure 6 As shown, the quick-release unit includes a mounting threaded tube 19 connected to the top of the motor accommodating tube 20 and a triangular bottom mounting plate 21 rotatably sleeved on the motor accommodating tube 20, a mounting threaded rod 18 is threaded in the mounting threaded tube 19, a triangular top mounting plate 17 is connected to the top of the mounting threaded rod 18, three mounting claws 22 are rotatably connected to the side wall of the triangular top mounting plate 17, and three mounting slots are opened on the side wall of the triangular bottom mounting plate 21, and the mounting claws 22 correspond to the positions of the mounting slots.

[0050] After winding, the three mounting claws 22 can be rotated to pull the mounting claws 22 out of the mounting slots, and then the mounting threaded barrel 19 can be rotated to separate it from the mounting threaded rod 18, so that the partial structure of the sampling device can be removed separately, thereby realizing quick disassembly and assembly, simple operation, and facilitating the delivery of mud and sand to relevant departments for inspection. At the same time, the mutual cooperation of the mounting threaded rod 18, the mounting threaded barrel 19 and the three mounting claws 22 can improve the stability of the connection of the sampling device, so that the device has sufficient connection strength at the bottom of the water to resist undercurrents.

[0051] In this embodiment, Figure 4 , Figure 5 As shown, a plurality of power device fixing frames 23 are connected to the side walls of the triangular bottom mounting plate 21 , and a power propeller assembly 24 is connected to the power device fixing frame 23 .

[0052] During the unwinding process, the power propeller assembly 24 distributed around the triangular bottom mounting plate 21 will operate and generate a certain thrust to accelerate the diving of the sediment sampling tube 25, speed up the sampling process, and provide auxiliary thrust for sediment drilling.

[0053] Working principle of the present invention: When the sampling device is used, the device can be placed on a ship, such as Figure 1 As shown, the reel rotating wheel 5 drives the reel rotating shaft 3 to rotate, thereby driving the square reel drum 4 to rotate for unwinding, so that the sediment sampling tube 25 is suspended by the reel rod 6 to dive into the seabed for sampling. During the unwinding process, Figure 3 As shown, the hoisting rod 6 will pass through the C-shaped reset frame 16, so that the elastic friction pad on the C-shaped reset frame 16 contacts the friction teeth on the friction reset plate 14, and the elastic friction pad squeezes the friction teeth to make it move, thereby driving the limit connection iron rod 8 to slide through the friction reset plate 14 and the movable retaining ring 9, so that the limit connection iron rod 8 is separated from the magnetic limit plate 13 and inserted into the limit connection plug-in cylinder 11. At this time, the elastic friction pad cannot squeeze the friction teeth to make it move, and then it is compressed and passes through the C-shaped reset frame 16. The position of the time-limited connecting iron rod 8 is fixed under the magnetic force of the magnetic mounting plate 10, so that the adjacent hoisting rods 6 maintain a relatively vertical connection relationship, so that multiple hoisting rods 6 are connected into one to resist the underwater undercurrent, thereby minimizing the swing amplitude of the bottom sediment sampling tube 25 and ensuring the smooth progress of the sampling process. Similarly, when winding, the limit connecting iron rod 8 will be pulled out of the limit connecting plug-in tube 11 and fixed by the magnetic force of the magnetic limit plate 13, so that the adjacent hoisting rods 6 can rotate with each other, which is convenient for winding.

[0054] During the unwinding process, Figure 4 As shown, the propeller assembly 24 distributed around the triangular bottom mounting plate 21 will run and generate a certain thrust to accelerate the descent of the sediment sampling tube 25 and speed up the sampling process. When the sediment sampling tube 25 reaches the seabed, Figure 6 As shown, the drilling motor 26 inside the motor housing tube 20 will drive the drilling shaft 27 to rotate, driving the mud drill 28 at the bottom to rotate at high speed to dig holes. The thrust of the power propeller assembly 24 enables the mud sampling tube 25 to be immersed in the mud on the seabed, and the surrounding mud leaks into the mud sampling tube 25 through the sand inlet hole and accumulates, thereby realizing automatic sampling of mud.

[0055] When the drilling shaft 27 drives the sand drill 28 to rotate and drill holes, Figure 7 , Figure 8As shown, the rotating drilling shaft 27 will drive the reduction gear ring 31 to slow down its rotation through the sun gear 29 and the planetary gears 30, thereby driving multiple arc-shaped sealing plates 34 to slowly move along the arc-shaped inner wall of the sediment sampling tube 25 through the sealing connecting plate 32 and the sealing spring rod 33 until the arc-shaped sealing plate 34 completely covers the sand inlet hole. Seabed sediment has accumulated in the sediment sampling tube 25, thereby achieving the sealing of the sediment sampling tube 25 to prevent sediment from leaking out when the sediment is rolled up and floated. At this time, the arc-shaped sealing plate 34 is slightly offset into the sand inlet hole under the elastic force of the sealing spring rod 33, so that the arc-shaped sealing plate 34 and the sand inlet hole are more closely matched, and the gap between the arc-shaped sealing plate 34 and the sand inlet hole is closed with the help of the side wing sealing plate 35, thereby further improving the sealing performance.

[0056] The device is easy to use and simple to operate. The sediment sampling tube 25 can be lowered to the seabed through the hoisting and reeling rod 6, and the swing amplitude of the sediment sampling tube 25 can be reduced. The sediment sampling tube 25 can then automatically drill holes to sample the seabed sediment and seal it, thereby completing the automatic sediment sampling work in the deep sea area. Relevant personnel do not need to dive for sampling, which not only improves the sampling speed and speeds up the inspection process of the seabed environment, but also ensures the life safety of personnel. Relevant personnel only need to shake the hoisting and reeling wheel 5 to reel in and out, thereby avoiding the occurrence of safety accidents caused by sampling.

[0057] When the winding is completed and the sediment sampling tube 25 floats, Figure 4 , Figure 6 As shown, the three mounting claws 22 can be rotated to pull the mounting claws 22 out of the mounting slots, and then the sediment sampling tube 25 can be rotated to separate the mounting threaded tube 19 from the mounting threaded rod 18, so that the partial structure of the sediment sampling tube 25 can be removed separately, thereby realizing the rapid disassembly and assembly of the sediment sampling tube 25. The operation is simple, and it is convenient to send the sediment sampling tube 25 and the sediment stored inside to the relevant departments for inspection. At the same time, the mutual cooperation of the mounting threaded rod 18, the mounting threaded tube 19 and the three mounting claws 22 can improve the stability of the connection between the sediment sampling tube 25 and the hoisting rod 6, so that the sediment sampling tube 25 has sufficient connection strength at the bottom of the water to resist undercurrents.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sediment sampling device for marine engineering, comprising a device frame (1), characterized in that: A plurality of reel supports (2) are connected to the side wall of the device frame (1), a sampling device reel assembly is installed on the plurality of reel supports (2), a plurality of reel rods (6) connected in rotation in sequence are installed on the sampling device reel assembly, and a swing amplitude reduction unit is connected to the ends of any two reel rods (6) close to each other, and a sediment sampling barrel (25) is installed at the bottom end of the lowest reel rod (6), and a sediment automatic sampling assembly is installed in the sediment sampling barrel (25); The swing amplitude reduction unit comprises two fixed baffle rings (7) connected to the two sides of one of the hoisting rods (6) and two limit connection plug-in sleeves (11) connected to the two sides of the other hoisting rod (6) through two magnetic mounting plates (10), the fixed baffle ring (7) is slidably connected to the limit connection iron rod (8) inside, the limit connection iron rod (8) is adapted to the limit connection plug-in sleeve (11), the middle and bottom of the limit connection iron rod (8) are fixedly sleeved with a movable baffle ring (9), both sides of one of the hoisting rods (6) are connected to a limit fixing plate (12), the top of the limit fixing plate (12) is connected to a magnetic limit plate (13), the movable baffle ring (9) fixedly sleeved on the middle of the limit connection iron rod (8) is connected to the automatic reset unit, and the lengths of the plurality of hoisting rods (6) are set to increase in sequence from top to bottom; An automatic reset unit for changing the connection state of the two connected hoisting rods (6) is installed on the device frame (1), and the automatic reset unit includes a friction reset plate (14) connected to the side walls of the two movable retaining rings (9) fixedly sleeved on the middle part of the limit connection iron rod (8), and a plurality of friction teeth are connected to the side walls of the friction reset plate (14). A transverse fixing frame (15) is connected to the side wall of the device frame (1), and a C-shaped reset frame (16) is connected to one side of the transverse fixing frame (15). Elastic friction pads are connected to the inner walls of both sides of the C-shaped reset frame (16), and the two elastic friction pads correspond to the positions of the two friction reset plates (14) respectively.

2. A sediment sampling device for marine engineering according to claim 1, characterized in that: The sampling device hanging and winding assembly comprises a hanging and winding shaft (3) rotatably connected to a plurality of winding drum supports (2), both ends of the hanging and winding shaft (3) are connected to hanging and winding wheels (5), a square hanging winding drum (4) is fixedly sleeved on the hanging and winding wheels (5), and the hanging and winding rod (6) located at the top is connected to the side wall of the square hanging winding drum (4).

3. A sediment sampling device for marine engineering according to claim 1, characterized in that: The automatic sediment sampling assembly comprises a motor accommodating cylinder (20) mounted on the top of the sediment sampling cylinder (25), a plurality of sand inlet holes are provided on the side wall of the sediment sampling cylinder (25), the top of the sediment sampling cylinder (25) is connected to the motor accommodating cylinder (20), a drilling motor (26) is connected inside the motor accommodating cylinder (20), the output end of the drilling motor (26) is drivingly connected to a drilling shaft (27), and the top and bottom of the sediment sampling cylinder (25) are connected to the motor accommodating cylinder (20). A small rotary hole and a large rotary hole are respectively opened on the inner wall, the bottom end of the drilling shaft (27) passes through the small rotary hole and is connected to a mud drill (28), the mud drill (28) is rotatably connected in the large rotary hole, a sealing unit is installed on the drilling shaft (27), the sealing unit is connected to the mud sampling tube (25), the top of the motor accommodating tube (20) is connected to a quick release unit, and the quick release unit is connected to the hoisting rod (6) located at the bottom.

4. A sediment sampling device for marine engineering according to claim 3, characterized in that: The sealing unit comprises a sun gear (29) fixedly sleeved on the drilling shaft (27); a plurality of planetary gears (30) are rotatably connected to the top inner wall of the device frame (1); the plurality of planetary gears (30) are all meshed with the sun gear (29); a reduction gear ring (31) is rotatably connected to the top inner wall of the device frame (1); the plurality of planetary gears (30) are all meshed with the reduction gear ring (31); a bottom stabilizing ring (31) is rotatably connected to the bottom inner wall of the sediment sampling tube (25); 36), the bottom of the reduction gear ring (31) and the top of the bottom stabilizing ring (36) are both connected with a plurality of sealing connecting plates (32), the side walls of the sealing connecting plates (32) are connected with a plurality of sealing spring rods (33), the telescopic ends of the plurality of sealing spring rods (33) located on the same side are connected with the same arc-shaped sealing plate (34), the positions of the plurality of arc-shaped sealing plates (34) respectively correspond to the positions of the plurality of sand inlet holes, and the side walls of the arc-shaped sealing plates (34) are both connected with side wing sealing plates (35).

5. A sediment sampling device for marine engineering according to claim 3, characterized in that: The quick-release unit comprises a mounting threaded cylinder (19) connected to the top of the motor accommodating cylinder (20) and a triangular bottom mounting plate (21) rotatably sleeved on the motor accommodating cylinder (20), a mounting threaded rod (18) being threadedly connected inside the mounting threaded cylinder (19), a triangular top mounting plate (17) being connected to the top of the mounting threaded rod (18), three mounting claws (22) being rotatably connected to the side wall of the triangular top mounting plate (17), three mounting slots being provided on the side wall of the triangular bottom mounting plate (21), the mounting claws (22) corresponding to the positions of the mounting slots.

6. A sediment sampling device for marine engineering according to claim 5, characterized in that: A plurality of power device fixing frames (23) are connected to the side walls of the triangular bottom mounting plate (21), and a power propeller assembly (24) is connected to the power device fixing frames (23).

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