CN113945422A - Ocean columnar mud sampler and mud sampling method - Google Patents
Ocean columnar mud sampler and mud sampling method Download PDFInfo
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- CN113945422A CN113945422A CN202111158155.4A CN202111158155A CN113945422A CN 113945422 A CN113945422 A CN 113945422A CN 202111158155 A CN202111158155 A CN 202111158155A CN 113945422 A CN113945422 A CN 113945422A
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- 238000005070 sampling Methods 0.000 title claims abstract description 241
- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 59
- 239000011159 matrix material Substances 0.000 claims description 15
- 230000033228 biological regulation Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 239000000523 sample Substances 0.000 description 61
- 230000008569 process Effects 0.000 description 20
- 230000003014 reinforcing effect Effects 0.000 description 19
- 239000002689 soil Substances 0.000 description 12
- 239000013535 sea water Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/12—Dippers; Dredgers
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Abstract
The invention discloses an ocean columnar mud sampler and a mud sampling method, belonging to the technical field of ocean sampling equipment, wherein the device comprises: the sampling frame is horizontally provided with a fixing plate in the middle, an upper cover plate parallel to the fixing plate is arranged at the upper end of the sampling frame, a sampling column is arranged on the sampling column, threads are spirally arranged around the outer side of the sampling column, a screw nut matched with the threads on the outer side of the sampling column is arranged between the fixing plate and the upper cover plate, the bottom end of the screw nut is connected with the fixing plate through a bearing, driven teeth are arranged on the outer side of the screw nut, a second motor is arranged on the fixing plate, driving teeth matched with the driven teeth are arranged at the end part of the second motor, the bottom port of the sampling column is a working end, and fins are hinged and installed at the working end through an annular mounting ring.
Description
Technical Field
The invention belongs to the technical field of ocean sampling equipment, and particularly relates to an ocean columnar mud sampler and a mud sampling method.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The columnar mud sampler is a device for extracting sediments at the bottom of a water body in a columnar form. The columnar mud sampler is an important sampling tool required for heavy water bottom geological survey, the composition of each layer of sediment at the water bottom and the accumulation distribution and transformation migration rules of chemical components can be further analyzed by observing and researching the collected columnar samples, and the community structure composition and distribution condition of benthos at the water bottom can also be observed.
However, at present, the marine columnar mud sampler enters the sampling pipe through the small hole at the bottom of the sampling pipe, the sampling amount of a sample is small, the sample is sucked by the suction force of the piston in the process of lifting the sample out of the sea, the small hole is not closed, if the sample is vibrated, the sample is easy to break, and the sample at the bottom is easy to drop out through the small hole, so that the subsequent testing and research work is influenced.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
Disclosure of Invention
The invention aims to provide an ocean columnar mud sampler and a mud sampling method, which have large sampling amount, do not cause the falling of a sampled sample and ensure the integrity of the sampled sample.
The technical scheme adopted by the invention for realizing the purpose is as follows: an ocean columnar dredge comprising:
a sampling frame which is a rectangular frame structure, a fixed plate is horizontally arranged in the middle of the sampling frame, an upper cover plate which is arranged in parallel with the fixed plate is arranged at the upper end of the sampling frame,
the sampling column is cylindrical, the upper end and the lower end of the sampling column are arranged in a penetrating way, threads are spirally arranged on the outer side of the sampling column in a surrounding way, hole bodies matched with the sampling column are arranged on the upper cover plate and the fixing plate, a screw nut matched with the threads on the outer side of the sampling column is arranged between the fixing plate and the upper cover plate, the bottom end of the screw nut is connected with the fixing plate through a bearing, driven teeth are arranged on the outer side of the screw nut, a second motor is arranged on the fixing plate, driving teeth matched with the driven teeth are arranged at the end part of the second motor,
the sampling column is characterized in that the bottom port of the sampling column is a working end, the working end is hinged with a fin through an annular mounting ring, the fin is arranged around the axis of the sampling column and can swing up and down relative to the mounting ring, the inner wall of the sampling column is provided with a straight groove parallel to the axis of the sampling column in a surrounding manner, the bottom end of the straight groove is communicated with the inner wall of the sampling column, the top end of the straight groove is communicated with the outer wall of the sampling column, the outer side of the upper end of the sampling column is provided with a bearing table connected with the sampling column, a first motor is arranged on the bearing table, the end part of the first motor is provided with a pull rope body in a connecting manner, and the free end of the pull rope body penetrates through the straight groove to be connected with the end part of the fin close to the axis of the sampling column;
the end part of the working end is provided with an extended bulge, the bulge is a ring body with the diameter equal to the inner diameter and the outer diameter of the sampling column, the outer side of the bulge is provided with threads consistent with the outer wall of the sampling column, and the inner wall of the bulge is circularly provided with electromagnets for adsorbing fins;
and iron chains connected with the ship body hoisting machine are arranged around the upper end of the sampling frame.
The sampling frame is designed to load a specific sampling mud part, so that the sampling frame can be conveniently connected with the sampling frame through an iron chain, the sampling frame is convenient to lift, and compared with the direct putting of the existing sampling device, the sampling frame can synchronously drive the sampling device to fall into a sampling area, the sampling column can be kept in a vertically descending state all the time in the falling process of seawater, the problem that the existing sampling column inclines and deviates or turns in the falling process of seawater is solved, after the sampling frame drives the sampling column to fall into the sampling area, the bottom end of the sampling column is vertically and oppositely arranged in the sampling area, then the screw nut is driven to rotate through the work of a second motor and a driving and driven gear, the spiral up-and-down motion of the sampling column is further realized, the sampling column is spirally tunneled downwards in the state, and the sampling resistance is reduced, compare in the mode of grafting sample, the present case can realize still that the working end through the mode that sets up the fin forms similar rotatory cutting motion to bottom earth at the sample post, help quick sample and improve the sample depth, the electro-magnet through the bellying can guarantee that the fin keeps vertical decurrent state to the absorption of fin at the sample in-process, and then place the fin and arouse the condition that the sample destroyed because of the soft fin swing that causes of sample earth to appear, and, after reaching the sample depth, come the rebound that stimulates the fin tip through controlling first motor and pull rope body, and then come to seal the sample post bottom through the fin, avoid the sample to drop or scatter, and the pull rope body passes through the straight flute cross-under, can not lead to the fact destruction to the sample, sample integrality has been guaranteed.
According to one embodiment of the invention, four upright posts of a rectangular frame structure of a sampling frame are respectively sleeved with a sliding sleeve capable of sliding up and down, the side of the sliding sleeve is connected with a sinking and floating regulation and control assembly through a connecting rod, and the sinking and floating regulation and control assembly comprises:
a sinking and floating matrix which is a cylindrical structure, the bottom of the sinking and floating matrix is hemispherical, the upper end of the sinking and floating matrix is provided with an opening, a cavity with the same shape as the sinking and floating matrix is arranged in the sinking and floating matrix,
the porous plate is horizontally arranged in the sinking and floating base body to separate the cavity in the sinking and floating base body up and down, the two sides of the hemispherical structure of the sinking and floating base body at the bottom of the porous plate are respectively communicated with a water inlet pipe and a water outlet pipe,
wherein, all be equipped with the hole of permeating water of separating the cavity about it in the intercommunication on the porous disk, porous disk upper end center department is connected with the pivot through the bearing, and the pivot tip stretches out ups and downs base member upper portion opening, and the pivot side is encircleed and is set up the blade.
The sinking and floating stability of the sampling frame in seawater is guaranteed by arranging the sinking and floating regulation and control assembly around the sampling frame, the sampling frame is prevented from overturning or inclining to a large extent, particularly after sampling is completed, specifically, in the process that the sampling frame sinks downwards from the sea level, the sinking and floating base bodies arranged can slide on a numerical upright post of the sampling frame along with a sliding sleeve, the counter force caused by the downward sinking of the sampling frame drives the sinking and floating base bodies to slide towards the upper end of the sampling frame, and the sinking and floating base bodies around the sampling frame all slide upwards in the process, so that the stress around the sampling frame is guaranteed, and the hemispherical structure arranged at the bottom of the sinking and floating base bodies is beneficial to flowing fluid from the surface of the sinking and floating base bodies to weaken the resistance of falling water body so as to guarantee the falling speed of the sampling frame, the water body can enter the interior of the sinking and floating base bodies from the water inlet pipe and flow upwards, the water body contacts with a permeable plate, a rotating shaft and blades on the side of the rotating shaft in the up-flowing process to consume the up-flowing speed of the water body, so that the reduction of the flow speed of water flowing to the upper part of the up-flowing substrate is facilitated, the stability of the sampling frame in water is stabilized, the rotation of the blades on the side of the rotating shaft relative to the rotating shaft can be driven by the up-flowing of the water body through the permeable plate, the fluid is further promoted to form rotational flow, and the floating objects or attachments in the sampling frame and the up-flowing substrate are also removed by utilizing the rotational flow center positioned in the up-flowing substrate to stabilize the sampling frame;
after accomplishing the sample, the hoist on the boats and ships lifts by crane the in-process to the sample frame, and the sample frame is in the rebound in-process water enters into downwards in the heavy floating base body and discharge from the drain pipe through the porous disk downflow, can reduce the rebound velocity of sample frame through four directions water resistance like this, especially in the sample frame lifts by crane in the twinkling of an eye, avoids promoting the impact force and leads to sample in the thief column because of vibrations split or breakage.
According to one embodiment of the invention, the upper end of the sampling column is provided with a sealing plug, the bottom of the sealing plug is inserted into an upper port of the sampling column, the sealing plug axially penetrates through a drain pipe, one end of the drain pipe is communicated with an inner cavity of the sampling column, and the other end of the drain pipe is connected with a drain valve. The blocking plug avoids the sampling materials from overflowing from the upper end of the sampling column due to excessive sampling materials, and is provided with a drain pipe and a drain valve for discharging the air and water inside the sampling column, so that the sampling difficulty due to excessive internal pressure is avoided, and the acquisition of the deposited mud sample and the water covering collection of the sea bottom water surface are facilitated.
According to one embodiment of the invention, the upper surface of the fin is provided with a reinforcing block, the reinforcing block is of an angle iron structure, and the reinforcing block is arranged in the center of the upper surface of the fin.
The electromagnet continuously adsorbs the fins in the sampling process, the fins are kept in a vertical state to ensure the sampling of the soil with different textures, and the reinforcing blocks are arranged on the surfaces of the fins to realize the reinforcing effect on the fins, so that in the state of completing the retraction of the sampling fins, the downward gravity of the silt in the sampling column can be dispersed on the reinforcing blocks and the bending of the fins caused by overlarge stress of the fins is avoided to ensure that the sample flows out from the gaps between the fins, the retention of the sampling sample and the sampling water body is favorably ensured, particularly, the covering water of the deposited soil sample and the seabed water surface in the sampling process is retained, meanwhile, the soil sample passes through the reinforcing blocks on the surfaces of the fins in the rotating and downward tunneling sampling process of the sampling column, the appropriate extrusion effect on the side surfaces of the soil cylinder can be achieved through the reinforcing blocks, and the reinforcing blocks can avoid the excessive extrusion on the soil sample according to the extrusion force deformation, the problem that the mud sample components on the upper side and the lower side of the mud sample column are not distributed clearly due to the fact that the side surface of the mud sample column is too loose to cause sampling is avoided.
According to one embodiment of the invention, a storage battery is arranged below the bearing table, the storage battery penetrates through the straight groove through a lead to be connected with the electromagnet, and a waterproof housing is arranged outside the storage battery and the first motor. The battery is simultaneously used for supplying power to the first motor. The mud sampler is provided with a single chip microcomputer for controlling each electrical appliance component, and the control technical principle of the single chip microcomputer is the prior art and is not described herein in too much detail.
According to one embodiment of the invention, the outer wall of the screw nut is connected with the bearing inner ring, and the bearing outer ring is fixedly connected with the fixing plate. For effecting a rotational downward or upward movement of the drive sampling column.
According to one embodiment of the invention, the fin is triangular, the triangular tip of the fin is acute-angled and is arranged close to the axis of the sampling column, the triangular bottom end of the fin is provided with a bulge matched with the mounting ring, the mounting ring penetrates through holes penetrating through two sides of the bulge, the end part of the first motor is provided with a wire drum, a pulling rope body is wound on the wire drum, and the pulling rope body is connected with the triangular tip of the fin. The connection of the drawing rope body at the end part of the fin can reduce the output power of the first motor and is also beneficial to the retraction of the fin.
The method for extracting the mud by adopting the ocean columnar mud extractor comprises the following specific steps:
hoisting the marine columnar dredger to the sampling water surface through hoisting equipment, and opening a water inlet by using a remote control to slowly and stably descend the dredger to the water bottom until the tips of the fins are in contact with a sampling area on the water bottom;
-turning on a second motor using a remote control to spin the sampling column while the spinning of the sampling column drives the fins to rotate and tunnel beneath the sample area until a sampling depth is reached;
-again operating the first motor by remote control, tightening the pull rope body, causing the fins to rotate upwards along their fixed ends, thus sealing the bottom of the sampling post, the hull crane lifting the sample rack away from the sampling area, completing the sampling.
Compared with the prior art, the invention has the beneficial effects that: the sampling frame is designed to load a specific mud sampling component, so that the sampling frame can be conveniently connected with the sampling frame through an iron chain, the sampling frame is convenient to lift, and compared with the direct putting of the existing sampling device, the sampling frame can synchronously drive the mud sampling device to fall into a sampling area, the sampling column can be kept in a vertically-descending state all the time in the falling process of the sampling column in seawater, and the problem that the existing sampling column is inclined, deviated or overturned in the falling process of the sampling column in seawater is solved;
the adjusting and controlling assembly is arranged around the sampling frame to realize that the stability of the sampling frame in the sea water is guaranteed, the sampling frame is prevented from overturning or inclining to a large extent, and particularly after sampling is completed.
Drawings
FIG. 1 is a schematic structural view of an ocean pillar mud sampler;
FIG. 2 is a schematic structural view of a sampling frame;
FIG. 3 is a schematic view of a screw elevating mechanism;
FIG. 4 is a partial cross-sectional view of a sampling column;
FIG. 5 is a schematic view of the working end of the sampling column;
FIG. 6 is a schematic structural diagram of a sinking-floating regulation assembly;
FIG. 7 is a cross-sectional view of a heave modulation assembly;
FIG. 8 is a schematic structural view of a first motor and fin attachment scheme;
FIG. 9 is a schematic structural view of a reinforcing member;
FIG. 10 is a schematic view of a fin and stiffener;
fig. 11 is a schematic structural view of a plug.
In the figure: 1. a sampling frame; 11. a connecting rod; 13. an upper cover plate; 2. a sampling column; 21. drawing a rope body; 22. a fin; 221. a reinforcement; 23. a straight groove; 24. an electromagnet; 25. blocking; 251. a drain pipe; 252. a drain valve; 26. a mounting ring; 27. a boss portion; 28. a working end; 29. a first motor; 291. a bobbin; 292. a storage battery; 3. a sinking and floating regulation component; 31. a second motor; 322. a driven tooth; 32. a water inlet pipe; 33. a drain pipe; 34. a water permeable plate; 341. water permeable holes; 35. a rotating shaft; 351. a blade; 36. a lead screw nut; 37. a bearing table; 311. a driving tooth; 38. a bearing; 39. and (7) fixing the plate.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the following detailed description and the accompanying drawings:
example 1:
referring to the attached figures 1-3 and 5 of the specification, an ocean columnar mud sampler comprises:
the sampling frame 1, the sampling frame 1 is a rectangular frame structure, the middle part of the sampling frame 1 is horizontally provided with a fixed plate 39, the upper end of the sampling frame 1 is provided with an upper cover plate 13 which is arranged in parallel with the fixed plate 39,
the sampling column 2 is a cylindrical column, the upper end and the lower end of the sampling column 2 are arranged in a penetrating way, the outer side of the sampling column 2 is spirally and circularly provided with threads, the upper cover plate 13 and the fixing plate 39 are provided with hole bodies matched with the sampling column 2, a screw nut 36 matched with the outer side of the sampling column 2 in a threaded way is arranged between the fixing plate 39 and the upper cover plate 13, the bottom end of the screw nut 36 is connected with the fixing plate 39 through a bearing 38, the outer side of the screw nut 36 is provided with a driven tooth 322, the fixing plate 39 is provided with a second motor 31, the end part of the second motor 31 is provided with a driving tooth 311 matched with the driven tooth 322,
the bottom end port of the sampling column 2 is a working end 28, the working end 28 is hinged with a fin 22 through an annular mounting ring 26, the fin 22 is arranged around the axis of the sampling column 2, the fin 22 can swing up and down relative to the mounting ring 26, the inner wall of the sampling column 2 is provided with a straight groove 23 parallel to the axis of the sampling column 2 in a surrounding manner, the bottom end of the straight groove 23 is communicated with the inner wall of the sampling column 2, the top end of the straight groove 23 is communicated with the outer wall of the sampling column 2, the outer side of the upper end of the sampling column 2 is provided with a bearing table 37 connected with the sampling column 2, the bearing table 37 is provided with a first motor 29, the end part of the first motor 29 is provided with a pull rope body 21, and the free end of the pull rope body 21 penetrates through the straight groove 23 to be connected with the end part of the fin 22 close to the axis of the sampling column 2;
wherein, the end of the working end 28 is provided with an extended boss 27, the boss 27 is a circular ring body with the same diameter as the inner diameter and the outer diameter of the sampling column 2, the outer side of the boss 27 is provided with a thread consistent with the outer wall of the sampling column 2, and the inner wall of the boss 27 is surrounded and distributed with the electromagnet 24 for adsorbing the fin 22;
iron chains connected with the ship body hoisting machine are arranged around the upper end of the sampling frame 1.
The scheme loads a specific mud sampling component by designing the sampling frame 1, so that the sampling frame 1 can be conveniently connected with the sampling frame 1 through an iron chain, the sampling frame 1 is convenient to lift, and compared with the direct putting-in of the existing sampling device, the scheme can realize that the sampling frame 1 synchronously drives the mud sampling device to fall into a sampling area, the sampling column can be kept in a vertically descending state all the time in the falling process of seawater, the problem that the existing sampling column is inclined, deviated or overturned in the falling process of seawater is solved, after the sampling frame 1 drives the sampling column 2 to fall into the sampling area, the bottom end of the sampling column 2 is vertically arranged in the sampling area, then the screw nut 36 is driven to rotate through the work of a second motor 31 and a driving and driven gear, further, the spiral up-and-down motion of the sampling column 2 is realized, and the sampling column 2 is driven to spirally tunnel downwards in the state, compared with the mode of inserting sampling, the mode of arranging the fins 22 can realize the similar rotary cutting motion to the soil at the bottom at the working end of the sampling column 2, thereby being beneficial to fast sampling and improving the sampling depth, the attraction of the electromagnet 24 of the boss 27 to the fin 22 during sampling can ensure that the fin 22 is kept in a vertically downward state, and thus the situation that the fin 22 is damaged due to the swing of the fin 22 caused by the loose and soft sampling soil occurs, and, after reaching the sampling depth, the upward movement of the end of the fin 22 is pulled by controlling the first motor 29 and the pulling rope 29, and then seal the bottom of the sampling column 2 through the fin 22, avoid the sample to drop or scatter, and the pull rope 29 passes through the straight groove 23 and is connected in a penetrating way, so that the sample can not be damaged, and the integrity of the sample is ensured.
Referring to the attached drawings 1-2 and 6-7 of the specification, four columns of a rectangular frame structure of the sampling frame 1 are respectively sleeved with a sliding sleeve capable of sliding up and down, the side of the sliding sleeve is connected with a sinking and floating regulation and control assembly 3 through a connecting rod 11, and the sinking and floating regulation and control assembly 3 comprises:
a sinking and floating matrix which is a cylindrical structure, the bottom of the sinking and floating matrix is hemispherical, the upper end of the sinking and floating matrix is provided with an opening, a cavity with the same shape as the sinking and floating matrix is arranged in the sinking and floating matrix,
a permeable plate 34, the permeable plate 34 is horizontally arranged in the sinking and floating base body to separate the cavity in the sinking and floating base body up and down, the two sides of the hemispherical structure of the sinking and floating base body at the bottom of the permeable plate 34 are respectively communicated with a water inlet pipe 32 and a water outlet pipe 33,
wherein, all be equipped with the permeable hole 341 of partition chamber about it of intercommunication on the permeable plate 34, the center department of permeable plate 34 upper end is connected with pivot 35 through the bearing, and the upper portion opening of ups and downs base member is stretched out to pivot 35 tip, and pivot 35 side is encircleed and is set up blade 351.
The sinking and floating stability of the sampling frame 1 in seawater is guaranteed by arranging the sinking and floating regulation and control assembly 3 around the sampling frame 1, the sampling frame 1 is prevented from overturning or inclining to a large extent, particularly after sampling is completed, specifically, in the process that the sampling frame 1 sinks downwards from the sea level, the arranged sinking and floating base bodies can slide on numerical value upright posts of the sampling frame along with sliding sleeves, the sampling frame 1 sinks downwards to bring reverse force to drive the sinking and floating base bodies to slide towards the upper end of the sampling frame 1, and the sinking and floating base bodies around the sampling frame 1 all slide upwards in the process, so that the stress around the sampling frame 1 is guaranteed, and the hemispherical structure arranged at the bottom of the sinking and floating base bodies is beneficial to the flow of fluid from the surface of the sinking and floating base bodies to weaken the resistance of falling water body so as to guarantee the falling speed of the sampling frame 1, the water inlet pipe 32 at the bottom of the sinking and floating base bodies is opened in the descending process, and the water body can enter the interior of the sinking and floating base bodies from the water inlet pipe 32 and flow upwards, the water body contacts with the permeable plate 34 and the rotating shaft 35 which are arranged in the ups and downs base body and the blades 351 on the side of the rotation shaft to consume the upward flowing speed of the water body in the upward flowing process, so that the reduction of the flow speed of water flowing to the upper part of the ups and downs base body is facilitated, the stability of the sampling frame 1 in water is stabilized, the blades 351 on the side of the rotation shaft 35 can be driven to rotate relative to the rotating shaft 35 by the upward flowing of the water body through the permeable plate 34, the fluid is further promoted to form rotational flow, and floating objects or attachments in the sampling frame 1 and the ups and downs base body are also removed by utilizing the rotational flow center positioned in the ups and downs base body to stabilize the sampling frame;
after accomplishing the sample, the hoist on the boats and ships lifts by crane the in-process to sample frame 1, and sample frame 1 moves the in-process water downwards and enters into in the heavy floating basal body and discharge from drain pipe 33 through porous disk 34 downflow, can reduce the upward moving speed of sample frame 1 through four directions water resistance like this, especially lifts by crane in the twinkling of an eye at sample frame 1, avoids promoting the impact force and leads to sample 2 interior sample splitting or breakage because of vibrations.
Referring to fig. 9-10 of the specification, the upper surface of the fin 22 is provided with a reinforcing block 221, the reinforcing block 221 is of an angle iron structure, and the reinforcing block 221 is arranged at the center of the upper surface of the fin 22.
In the sampling process, the electromagnet 24 continuously adsorbs the fins 22, the fins 22 are kept in a vertical state to ensure that the soil with different textures is sampled, and the reinforcing blocks 221 are arranged on the surfaces of the fins 22 to realize the reinforcing effect on the fins 22, so that in the state of completing the retraction of the sampling fins 22, the downward gravity of the silt in the sampling column 2 can be dispersed on the reinforcing blocks and the situation that the fins are bent to cause the sample to flow out from gaps among the fins due to overlarge stress of the fins is avoided, which is favorable for ensuring the retention of the sampling sample and the sampling water body, particularly the water covering of the sediment soil sample and the sea bottom water surface in the sampling process is retained, meanwhile, the soil sample passes through the reinforcing blocks 221 on the surfaces of the fins 22 in the rotating and downward tunneling sampling process of the sampling column 2, the appropriate extrusion effect on the side surfaces of the soil cylinders to be sampled can be achieved through the reinforcing blocks, and the reinforcing blocks 221 can be deformed according to avoid the excessive extrusion on the soil sample, the problem that the mud sample components on the upper side and the lower side of the mud sample column are not distributed clearly due to the fact that the side surface of the mud sample column is too loose to cause sampling is avoided.
Referring to the description and the attached drawings 1 and 3-4, a storage battery 292 is arranged below the bearing platform 37, the storage battery 292 is connected with the electromagnet 24 through a straight groove by a lead penetrating through the straight groove, and a waterproof casing is arranged outside the storage battery 292 and the first motor 29. The accumulator 292 is also used to supply the first electric machine 29. The mud sampler is provided with a single chip microcomputer for controlling each electrical appliance component, and the control technical principle of the single chip microcomputer is the prior art and is not described herein in too much detail.
The outer wall of the screw nut 36 is connected with the inner ring of the bearing 38, and the outer ring of the bearing 38 is fixedly connected with the fixing plate 39. For effecting a rotational downward or upward movement of the drive sampling column 2.
The method for extracting the mud by adopting the ocean columnar mud extractor comprises the following specific steps:
lifting the marine cylindrical dredger to the sampling water surface by the lifting device, opening the water inlet 32 by using a remote control, and slowly and stably lowering the dredger to the water bottom until the tips of the fins 22 contact the sampling area on the water bottom;
turning on the second motor 31 using remote control to spin the sampling column 2, while spinning of the sampling column 2 drives the fins 22 to rotate and tunnel below the sample area until the sampling depth is reached;
the first motor 29 is operated again by remote control, the drawing rope body 21 is tightened, the fin 22 is rotated upwards along the fixed end thereof, the bottom of the sampling column 2 is sealed, and the ship crane lifts the sampling frame 1 away from the sampling area, so as to finish sampling.
Example 2:
this example is different from example 1 in that: referring to the accompanying drawings 9-10 in the specification, the fin 22 is triangular, the triangular tip of the fin 22 is acute and is arranged close to the axis of the sampling column 2, the triangular bottom end of the fin 22 is provided with a protrusion matched with the mounting ring 26, the mounting ring 26 penetrates through a hole body penetrating through two sides of the protrusion, the end of the first motor 29 is provided with a bobbin 291, the bobbin 291 is wound with a pull rope 29, and the pull rope 29 is connected with the triangular tip of the fin 22. The connection of the drawing rope 29 at the end of the fin 22 can reduce the output power of the first motor 29 and is also beneficial to the retraction of the fin 22.
Example 3:
this example is different from example 1 in that: referring to the attached drawings 4 and 11 in the specification, the upper end of the sampling column 2 is provided with a blocking plug 25, the bottom of the blocking plug 25 is inserted into the upper port of the sampling column 2, a drain pipe 251 axially penetrates through the blocking plug 25, one end of the drain pipe 251 is communicated with the inner cavity of the sampling column 2, and the other end of the drain pipe 251 is connected with a drain valve 252. The shutoff plug 25 avoids the too much sample material that leads to of sample material to spill over from the sample column 2 upper end to be equipped with drain pipe 251 and drain valve 252 on the shutoff plug 25 for discharge sample column 2 inside air and water, avoid the too big sample difficulty that leads to of internal pressure, but also be favorable to acquireing the overburden water of sediment mud appearance and seabed surface and collect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. An ocean columnar dredge comprising:
the sampling frame (1), the sampling frame (1) is a rectangular frame structure, the middle part of the sampling frame (1) is horizontally provided with a fixed plate (39), the upper end of the sampling frame (1) is provided with an upper cover plate (13) which is arranged in parallel with the fixed plate (39),
the sampling column (2) is cylindrical, the upper end and the lower end of the sampling column (2) are arranged in a penetrating manner, threads are spirally arranged on the outer side of the sampling column (2) in a surrounding manner, hole bodies matched with the sampling column (2) are formed in the upper cover plate (13) and the fixing plate (39), a screw nut (36) matched with the threads on the outer side of the sampling column (2) is arranged between the fixing plate (39) and the upper cover plate (13), the bottom end of the screw nut (36) is connected with the fixing plate (39) through a bearing (38), driven teeth (322) are arranged on the outer side of the screw nut (36), a second motor (31) is arranged on the fixing plate (39), and driving teeth (311) matched with the driven teeth (322) are arranged at the end part of the second motor (31),
the method is characterized in that: the bottom port of the sampling column (2) is a working end (28), the working end (28) is hinged with a fin (22) through a circular mounting ring (26), the fin (22) is arranged around the axis of the sampling column (2), the fins (22) can swing up and down relative to the mounting ring (26), the inner wall of the sampling column (2) is provided with straight grooves (23) which are parallel to the axis of the sampling column in a surrounding way, the bottom end of the straight groove (23) is communicated with the inner wall of the sampling column (2), the top end of the straight groove (23) is communicated with the outer wall of the sampling column (2), a bearing platform (37) connected with the sampling column (2) is arranged on the outer side of the upper end of the sampling column, a first motor (29) is arranged on the bearing table (37), a pull rope body (21) is connected with the end part of the first motor (29), the free end of the drawing rope body (21) passes through the straight groove (23) and is connected with the end part of the fin (22) close to the axis of the sampling column (2);
the end part of the working end (28) is provided with an extending bulge part (27), the bulge part (27) is a torus with the inner diameter and the outer diameter of the sampling column (2) being equal, threads consistent with the outer wall of the sampling column (2) are arranged on the outer side of the bulge part (27), and the inner wall of the bulge part (27) is surrounded by electromagnets (24) arranged on the adsorption fins (22).
2. The marine columnar dredger as claimed in claim 1, wherein: four stands of the rectangular frame structure of sample frame (1) are gone up the cover respectively and are equipped with the sliding sleeve that can slide from top to bottom, sliding sleeve side is connected with ups and downs regulation and control subassembly (3) through connecting rod (11), ups and downs regulation and control subassembly (3) include:
the sinking and floating matrix is of a cylindrical structure, the bottom of the sinking and floating matrix is hemispherical, the upper end of the sinking and floating matrix is provided with an opening, a cavity with the same shape as the sinking and floating matrix is arranged in the sinking and floating matrix,
the permeable plate (34) is horizontally arranged in the sinking and floating base body to separate a cavity in the sinking and floating base body from top to bottom, two sides of a hemispherical structure of the sinking and floating base body at the bottom of the permeable plate (34) are respectively communicated with a water inlet pipe (32) and a water outlet pipe (33),
the water permeable plate (34) is provided with water permeable holes (341) communicated with the upper and lower separation chambers, the center of the upper end of the water permeable plate (34) is connected with a rotating shaft (35) through a bearing, the end part of the rotating shaft (35) extends out of an opening in the upper part of the sinking and floating base body, and blades (351) are arranged on the side of the rotating shaft (35) in a surrounding mode.
3. The marine columnar dredger as claimed in claim 2, wherein: the sampling column (2) upper end sets and seals up (25), it inserts into sampling column (2) upper portion port to seal up (25) bottom, it has drain pipe (251) to seal to block (25) axial through, one end of drain pipe (251) with the inner chamber intercommunication of sampling column (2), another end connection of drain pipe (251) has drain valve (252).
4. A marine columnar dredger according to claim 3, characterized in that: the upper surface of fin (22) has boss (221), boss (221) are the angle bar structure, boss (221) set up the central point of fin (22) upper surface puts.
5. The marine columnar dredger as claimed in claim 4, wherein: a storage battery (292) is arranged below the bearing table (37), the storage battery (292) penetrates through the straight groove through a lead to be connected with the electromagnet (24), and a waterproof shell cover is arranged outside the storage battery (292) and the first motor (29).
6. The marine columnar dredger as claimed in claim 5, wherein: the outer wall of the screw nut (36) is connected with the inner ring of the bearing (38), and the outer ring of the bearing (38) is fixedly connected with the fixing plate (39).
7. The marine columnar dredger as claimed in claim 6, wherein: fin (22) are three horn shapes, the triangle tip of fin (22) is the acute angle and is close to the setting of thief column (2) axis, the triangle bottom of fin (22) is equipped with the arch of seting up with collar (26), the hole body that protruding both sides link up is passed in collar (26), first motor (29) tip is equipped with bobbin (291), twine pull rope body (29) on bobbin (291), pull rope body (29) are connected with the triangle tip of fin (22).
8. A method of harvesting mud using an ocean pillar dredger according to any one of claims 1-7, characterized in that:
-lifting the marine cylindrical sampler to the sampling surface by means of a lifting device, opening the water inlet (32) using remote control, and slowly and smoothly lowering the sampler to the water bottom until the tips of the fins (22) contact the sampling area at the water bottom;
-turning on the second motor (31) using remote control to spin the sampling column (2), while spinning of the sampling column (2) causes the fins (22) to rotate and tunnel beneath the sample area until a sampling depth is reached;
-operating the first motor (29) again by remote control, tightening the pull rope (21), rotating the fins (22) upwards along their fixed ends, thus sealing the bottom of the sampling column (2), the hull crane lifting taking the sampling frame (1) away from the sampling area, completing the sampling.
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| CN202111158155.4A CN113945422B (en) | 2021-09-30 | 2021-09-30 | Marine columnar mud sampler and mud sampling method |
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| CN202111158155.4A CN113945422B (en) | 2021-09-30 | 2021-09-30 | Marine columnar mud sampler and mud sampling method |
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| CN116399642A (en) * | 2023-06-08 | 2023-07-07 | 珠江水利委员会珠江水利科学研究院 | Columnar sampler suitable for in-situ sampling of sandy and silt sediments |
| CN116539362A (en) * | 2023-05-13 | 2023-08-04 | 杭州古伽船舶科技有限公司 | Sampling ship automatic sampling system based on Internet of things |
| CN116793751A (en) * | 2023-08-21 | 2023-09-22 | 山西农业大学 | Improved mud sampler |
| CN117109972A (en) * | 2023-08-10 | 2023-11-24 | 广东海洋大学 | Device for simultaneously collecting marine sediment and seabed water sample |
| CN117367875A (en) * | 2023-11-23 | 2024-01-09 | 江西铜业集团银山矿业有限责任公司 | Sampling device and sampling method for river water quality detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539362A (en) * | 2023-05-13 | 2023-08-04 | 杭州古伽船舶科技有限公司 | Sampling ship automatic sampling system based on Internet of things |
| CN116539362B (en) * | 2023-05-13 | 2023-11-03 | 杭州古伽船舶科技有限公司 | Sampling ship automatic sampling system based on Internet of things |
| CN116399642A (en) * | 2023-06-08 | 2023-07-07 | 珠江水利委员会珠江水利科学研究院 | Columnar sampler suitable for in-situ sampling of sandy and silt sediments |
| CN116399642B (en) * | 2023-06-08 | 2023-09-01 | 珠江水利委员会珠江水利科学研究院 | Columnar sampler suitable for in-situ sampling of sandy and silt sediments |
| CN117109972A (en) * | 2023-08-10 | 2023-11-24 | 广东海洋大学 | Device for simultaneously collecting marine sediment and seabed water sample |
| CN117109972B (en) * | 2023-08-10 | 2024-03-26 | 广东海洋大学 | Device for simultaneously collecting marine sediment and seabed water sample |
| CN116793751A (en) * | 2023-08-21 | 2023-09-22 | 山西农业大学 | Improved mud sampler |
| CN116793751B (en) * | 2023-08-21 | 2023-11-14 | 山西农业大学 | Improved mud sampler |
| CN117367875A (en) * | 2023-11-23 | 2024-01-09 | 江西铜业集团银山矿业有限责任公司 | Sampling device and sampling method for river water quality detection |
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