CN114778199B - Marine geological environment exploration sampler and sampling method - Google Patents
Marine geological environment exploration sampler and sampling method Download PDFInfo
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- CN114778199B CN114778199B CN202210403556.XA CN202210403556A CN114778199B CN 114778199 B CN114778199 B CN 114778199B CN 202210403556 A CN202210403556 A CN 202210403556A CN 114778199 B CN114778199 B CN 114778199B
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- 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
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Abstract
The invention discloses a marine geological environment exploration sampler and a sampling method, and belongs to the technical field of marine geological exploration. A marine geological environment exploration sampler comprising: a sampling barrel; a connecting piston plate slidably connected in the sampling barrel; a sampling cavity is arranged between the sampling barrel and the connecting piston plate, and the sampling cavity is positioned at the lower end of the connecting piston plate; a counterweight block fixedly connected to the sampling barrel; an inflatable air bag detachably connected to the sampling barrel; the lower end of the inflatable air bag is detachably connected with the connecting piston plate through a connecting pull rope; the invention can improve the stability when the sampling barrel moves downwards through the arranged inflatable air bag, and after the inflatable air bag and the sampling barrel are detachable, the stirring shaft is convenient to rotate, the mixing effect on marine sediments is improved, the sampling accuracy is further improved, and when the inflatable air bag moves upwards, the connecting piston plate is pulled to move upwards, so that the sampling cavity is convenient to sample.
Description
Technical Field
The invention relates to the technical field of marine geological exploration, in particular to a marine geological environment exploration sampler and a sampling method.
Background
The ocean is the general term of the widest water body on the earth, and refers to the vast water area which is divided into mutually communicated water areas by each continent on the earth surface; the central part of the ocean is called ocean, the edge part is called sea, and the central part and the edge part are communicated with each other to form a uniform water body;
geologic bodies broadly refer to any volume of natural rock body units that one observes and studies; marine sediments are a kind of marine geology, and refer to a general name of seabed sediments formed by various marine sedimentations, substances deposited on the seabed by taking seawater as a medium, the sedimentations can be generally divided into 3 different processes of physics, chemistry and biology, and the sediments can be regarded as geologic bodies generated by comprehensive action because the processes are not always carried out in isolation;
the sediment is divided by depth into: near shore deposition (0-20 m), shallow sea deposition (20-200 m), semi-deep sea deposition (200-2000 m), deep sea deposition (greater than 2000 m);
when taking a sample to the nearly bank deposit of ocean, move down in the sea water through counter weight device with the sampler more for take place to strike between the easy seabed of sampler, make ocean deposit receive to strike on the one hand and splash, be not convenient for sample, on the other hand sampler can receive the impact, easily make the sampler damage, the influence is not good to the sample effect of ocean deposit, and the sample effect is not good.
Disclosure of Invention
The invention aims to solve the problems that when the existing method is used for sampling marine offshore sediments, a sampler is mostly placed in seawater to move downwards through a counterweight device, so that the sampler is easy to impact between the seabed, marine sediments are splashed by impact on one hand, the sampling is inconvenient, and the sampler is easy to damage due to impact on the other hand, the sampling effect on the marine sediments is influenced, and the sampling effect is poor.
In order to achieve the purpose, the invention adopts the following technical scheme:
a marine geological environment exploration sampler comprising: a sampling barrel; a connecting piston plate slidably connected in the sampling barrel; a sampling cavity is arranged between the sampling barrel and the connecting piston plate, and the sampling cavity is positioned at the lower end of the connecting piston plate; a counterweight block fixedly connected to the sampling barrel; an inflatable air bag detachably connected to the sampling barrel; the lower end of the inflatable air bag is detachably connected with the connecting piston plate through the connecting pull rope, and the inflatable air bag is used for pulling the connecting piston plate to move upwards when the inflatable air bag is separated from the sampling barrel, so that the sampling cavity is in a negative pressure state to extract a sample.
In order to facilitate the separation of the sampling barrel and the inflatable air bag, preferably, an upper sliding insertion rod is connected to the sampling barrel in a sliding manner, an upper insertion rod spring is fixedly connected to one end of the upper sliding insertion rod, one end, away from the upper sliding insertion rod, of the upper insertion rod spring is fixedly connected to the sampling barrel, an air bag insertion rod is fixedly connected to the lower end of the inflatable air bag, the upper sliding insertion rod is inserted into the air bag insertion rod, and a driving assembly for driving the upper sliding insertion rod to slide is fixedly connected to the bottom of the sampling barrel.
To facilitate pushing of the upper sliding plunger, preferably, the drive assembly comprises: an upper plunger cavity and a supporting leg cavity which are arranged on the sampling barrel; the upper sliding inserted bar is connected in an upper inserted bar cavity in a sliding manner, and the upper inserted bar cavity is communicated with the supporting leg cavity through an inserted bar through pipe; the supporting leg is connected in the supporting leg cavity in a sliding mode; and the two ends of the supporting leg spring are respectively and fixedly connected to the sampling barrel and the supporting leg.
Preferably, the connection pull rope penetrates through the sampling barrel, and the connection piston plate is connected to the inner part of the connection piston plate.
In order to facilitate the separation of the connection pull rope and the connection piston plate, a lower sliding insertion rod is connected to the connection piston plate in a sliding manner, the lower sliding insertion rod penetrates through the connection pull rope, a lower insertion rod spring is fixedly connected to the lower end of the lower sliding insertion rod, one end, far away from the lower sliding insertion rod, of the lower insertion rod spring is fixedly connected to the connection piston plate, and the upper end of the lower sliding insertion rod is matched with the inner upper wall of the sampling barrel.
In order to facilitate stirring of the sample, preferably, the connecting piston plate is rotatably connected with a rotating shaft, the lower end of the rotating shaft is fixedly connected with a stirring shaft, the stirring shaft is connected with a stirring rod, and the connecting pull rope is wound on the rotating shaft in a threaded manner.
In order to facilitate the storage of the stirring rod, preferably, the stirring rod is rotatably connected to the stirring shaft, a stirring tank for storing the stirring rod is arranged on the stirring shaft, the stirring tank is connected with the stirring rod through a U-shaped elastic sheet, a lower magnetic block is fixedly connected to the stirring tank, an upper magnetic block is fixedly connected to the stirring rod, and the upper magnetic block and the lower magnetic block are attracted magnetically.
In order to facilitate the closing of the sampling hole, preferably, an upper air cavity is arranged between the sampling barrel and the connecting piston plate, the upper air cavity is located at the upper end of the connecting piston plate, the lower end of the sampling barrel is fixedly connected with the sampling hole communicated with the sampling cavity, the sampling barrel is provided with a sliding cavity, the sliding cavity is internally and slidably connected with a closing plate inserted on the sampling hole, the upper air cavity is communicated with the sliding cavity through a connecting pipe, the connecting piston plate is fixedly connected with a through rod, and the through rod penetrates through the closing plate and the lower end of the sampling barrel.
In order to facilitate the placing of the sampling bucket, preferably, the sampling bucket further comprises: a sampling stage; the driving motor and the vertical plate are fixedly connected to the sampling platform; the rope winding roller is rotationally connected to the vertical plate and is fixedly connected to the output end of the driving motor; the rope is wound on the rope winding roller to drive the pull rope; wherein, the sampling bucket fixed connection is on the drive stay cord, aerify gasbag sliding connection on the drive stay cord.
A marine geological environment exploration sampling method mainly comprises the following steps:
s1, starting a driving motor, driving a rope winding roller to rotate, discharging a driving pull rope, and driving a sampling barrel to sink to the seabed under the action of the counterweight block and the gravity of an inflatable air bag;
s2, when the sampling barrel sinks to the seabed, the supporting legs move upwards to extrude gas in the supporting leg cavities to enter the upper inserted link cavities through the inserted link through pipes so as to drive the upper sliding inserted links to slide, so that the air bag inserted links are separated from the upper sliding inserted links, namely the inflatable air bag is separated from the sampling barrel;
s3, when the inflatable air bag is separated from the sampling barrel, the sampling barrel moves downwards further to be inserted into the seabed geology under the action of the gravity of the balancing weight;
s4, when the inflatable air bag is separated from the sampling barrel, the inflatable air bag moves upwards, the connecting pull rope is pulled to move upwards so as to pull the connecting piston plate to move upwards, the sampling cavity is in a negative pressure state, and the object to be sampled is extracted through the sampling hole;
s5, when the connecting piston plate moves upwards, gas in the sampling cavity enters the sliding cavity through the connecting pipe, so that the gas has a tendency of pushing the closing plate to slide, when the through rod moves upwards and does not clamp the closing plate, the gas pushes the closing plate to close the sampling hole, and the gas is discharged from the sliding cavity of the through rod;
s6, the rope winding roller is retracted, and the sampling barrel is pulled out to finish sampling.
Compared with the prior art, the invention provides a marine geological environment exploration sampler and a sampling method, and the sampling method has the following beneficial effects:
the part which is not involved in the device is the same as the part which can be realized by adopting the prior art, the stability of the device when the sampling barrel is moved down can be improved by the arranged inflatable air bag, and the stirring shaft can be conveniently rotated after the inflatable air bag is detached from the sampling barrel, so that the mixing effect of marine sediments is improved, the sampling accuracy is further improved, and the connecting piston plate can be pulled to move upwards when the inflatable air bag moves upwards, so that the sampling cavity can be conveniently sampled.
Drawings
FIG. 1 is a schematic structural diagram of a marine geological environment exploration sampler and sampling method according to the present invention;
FIG. 2 is a schematic cross-sectional view of a marine geological exploration sampler and sampling method according to the present invention;
FIG. 3 is a schematic structural diagram of part A in FIG. 2 illustrating a marine geological exploration sampler and sampling method according to the present invention;
FIG. 4 is a schematic diagram of the structure of a connecting piston plate of the marine geological environment exploration sampler and sampling method according to the present invention;
FIG. 5 is a schematic structural diagram of part B of FIG. 4 illustrating a marine geological exploration sampler and sampling method according to the present invention;
FIG. 6 is a schematic structural diagram of an upper sliding plunger of the marine geological environment exploration sampler and sampling method according to the present invention;
FIG. 7 is a schematic structural diagram of an inflatable air bag of a marine geological environment exploration sampler and a sampling method according to the present invention;
FIG. 8 is a schematic structural diagram of a rotating shaft of a marine geological environment exploration sampler and sampling method according to the present invention;
FIG. 9 is a schematic structural diagram of a rope winding roller of the marine geological environment exploration sampler and the sampling method provided by the invention.
In the figure: 1. a sampling barrel; 101. an upper air cavity; 1011. a connecting pipe; 102. a sampling cavity; 103. a sampling hole; 104. a sliding cavity; 105. a closing plate; 2. a balancing weight; 3. an inflatable air bag; 301. driving a pull rope; 302. an air bag insertion rod; 303. sliding the inserted link up; 3031. an upper plunger cavity; 304. an upper plunger spring; 305. supporting legs; 3051. a leg spring; 3052. a leg cavity; 306. a rod-inserting through pipe; 307. connecting a pull rope; 308. a lower sliding plunger; 309. a lower plunger spring; 4. a connecting piston plate; 401. a stirring shaft; 402. a rotating shaft; 403. a stirring rod; 404. a U-shaped elastic sheet; 405. a lower magnetic block; 4051. an upper magnetic block; 406. a stirring tank; 407. a through rod; 5. a sampling stage; 501. a drive motor; 502. a rope winding roller; 503. and (5) arranging a vertical plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-9, a marine geological environment exploration sampler comprises: a sampling barrel 1; a connecting piston plate 4 connected in the sampling barrel 1 in a sliding manner; wherein, a sampling cavity 102 is arranged between the sampling barrel 1 and the connecting piston plate 4, and the sampling cavity 102 is positioned at the lower end of the connecting piston plate 4; a balancing weight 2 fixedly connected to the sampling barrel 1; an inflatable air bag 3 detachably connected to the sampling barrel 1; the lower end of the inflatable air bag 3 is detachably connected with the connecting piston plate 4 through a connecting pull rope 307, and when the inflatable air bag 3 is separated from the sampling barrel 1, the inflatable air bag 3 is used for pulling the connecting piston plate 4 to move upwards, so that the sampling cavity 102 is in a negative pressure state to extract a sample.
When the device is used, the sampling barrel 1 is firstly lowered under the action of the balancing weight 2, the sampling barrel 1 is placed on the seabed, the descending speed of the sampling barrel 1 can be buffered through the detachable inflatable air bag 3, and the sampling barrel 1 is prevented from impacting the bottom of the ocean, so that ocean sediments are scattered and splashed;
after the sampling barrel 1 is placed on the seabed, the inflatable air bag 3 is detached from the sampling barrel 1, so that the sampling barrel 1 is further inserted into marine sediments under the action of the balancing weight 2, and the sampling effect of the sampling barrel 1 is improved;
the inflatable air bag 3 moves upwards at the moment, and the connecting piston plate 4 can be pulled to move upwards through the arranged connecting pull rope 307, so that the sampling cavity 102 is in a negative pressure state, and further ocean sediments on the seabed can be extracted to enter the sampling cavity 102 for sampling;
it should be noted that, in the initial state, because the opening of the sampling barrel 1 is arranged at the lower end, the gas connecting the upper end and the lower end of the piston plate 4 cannot be discharged, so that the seawater cannot enter the sampling cavity 102;
sliding connection has last slip inserted bar 303 on sampling bucket 1, and the one end fixedly connected with of going up slip inserted bar 303 has last inserted bar spring 304, goes up the one end fixed connection that inserted bar spring 304 kept away from last slip inserted bar 303 on sampling bucket 1, and the lower extreme fixedly connected with gasbag inserted bar 302 of inflatable air bag 3 goes up slip inserted bar 303 and pegs graft on gasbag inserted bar 302, and the bottom fixedly connected with of sampling bucket 1 is used for driving the gliding drive assembly of slip inserted bar 303.
The drive assembly includes: an upper plunger cavity 3031 and a supporting leg cavity 3052 which are arranged on the sampling barrel 1; wherein, the upper sliding insert rod 303 is connected in the upper insert rod cavity 3031 in a sliding way, and the upper insert rod cavity 3031 is communicated with the supporting leg cavity 3052 through an insert rod through pipe 306; a support leg 305 slidably connected within the leg cavity 3052; the supporting leg spring 3051, both ends are fixed connection respectively on sampling bucket 1, supporting leg 305.
It should be noted that the supporting leg 305 may be provided with an air bag, which can improve the buoyancy of the supporting leg 305, and facilitate the upward movement of the supporting leg 305;
specifically, when the inflatable airbag 3 and the sampling barrel 1 need to be detached, the supporting leg 305 contacts with the seabed first, the supporting leg 305 is supported by buoyancy, the supporting leg 305 moves upwards to press the supporting leg spring 3051, and the gas in the supporting leg cavity 3052 enters the upper inserted link cavity 3031 through the inserted link through pipe 306 to push the upper sliding inserted link 303 to slide, at the moment, the airbag inserted link 302 is separated from the upper sliding inserted link 303, and the inflatable airbag 3 moves upwards under the action of buoyancy;
the connection pull rope 307 passes through the sampling barrel 1, and the connection piston plate 4 is connected to the inside of the connection piston plate 4.
The connecting piston plate 4 is connected with a lower sliding plunger 308 in a sliding manner, the lower sliding plunger 308 is connected with a pull rope 307 in a penetrating manner, the lower end of the lower sliding plunger 308 is fixedly connected with a lower plunger spring 309, one end, far away from the lower sliding plunger 308, of the lower plunger spring 309 is fixedly connected to the connecting piston plate 4, and the upper end of the lower sliding plunger 308 is matched with the inner upper wall of the sampling barrel 1.
Specifically, when the connection pull rope 307 needs to be separated from the connection piston plate 4, and the connection piston plate 4 moves upwards to be attached to the upper wall of the sampling barrel 1, the lower sliding plunger 308 moves downwards, the lower plunger spring 309 is compressed, the lower sliding plunger 308 can be separated from the connection pull rope 307, and therefore the connection piston plate 4 is conveniently separated from the connection pull rope 307;
the separated inflatable airbag 3 on the connecting pull rope 307 moves upwards to remind an operator that the connecting piston plate 4 finishes moving upwards, namely the sampling is finished;
a rotating shaft 402 is rotatably connected in the connecting piston plate 4, a stirring shaft 401 is fixedly connected to the lower end of the rotating shaft 402, a stirring rod 403 is connected to the stirring shaft 401, and a connecting pull rope 307 is wound on the rotating shaft 402 in a threaded manner.
It should be noted that after the inflatable airbag 3 is separated from the sampling bucket 1 and before the connection pull rope 307 is separated from the connection piston plate 4, the inflatable airbag 3 moves upwards to pull the connection pull rope 307 to slide, and because the connection pull rope 307 is wound with the rotation shaft 402 in a threaded manner, when the inflatable airbag 3 continuously pulls the connection pull rope 307 to move, the rotation shaft 402 rotates, and then the rotation shaft 402 drives the stirring shaft 401 to rotate, and then the stirring shaft 401 drives the stirring rod 403, so that the stirring rod 403 stirs marine sediments, and further when sampling marine sediments, the sampling effect is improved;
When the connecting piston plate 4 moves upwards, the stirring rod 403 can rotate to be closed in the stirring tank 406, and the stirring rod 403 is fixed under the influence of the magnetic force of the upper magnetic block 4051 and the lower magnetic block 405, so that the stirring rod 403 is prevented from unfolding after entering the sampling barrel 1;
furthermore, in order to improve the sealing effect of the sampling cavity 102, a rubber sleeve is sleeved at the lower end of the connecting piston plate 4, and two ends of the rubber sleeve are respectively and fixedly connected to the sampling barrel 1 and the connecting piston plate 4;
be equipped with air cavity 101 between sampling bucket 1 and the connection piston board 4, it is located the upper end of connecting piston board 4 to go up air cavity 101, the lower extreme fixedly connected with of sampling bucket 1 and the communicating thief hole 103 of sample chamber 102, be equipped with sliding chamber 104 on the sampling bucket 1, sliding chamber 104 sliding connection has the closure plate 105 of pegging graft on thief hole 103, it communicates with each other through connecting pipe 1011 with sliding chamber 104 to go up air cavity 101, fixedly connected with logical pole 407 on the connection piston board 4, logical pole 407 runs through the lower extreme of closure plate 105 and sampling bucket 1.
When the connecting piston plate 4 moves upwards, the gas in the upper gas cavity 101 is extruded, the gas enters the connecting pipe 1011 and the sliding cavity 104, and the pressure in the connecting pipe 1011 and the sliding cavity 104 is increased;
the connecting piston plate 4 moves upwards to drive the through rod 407 to move upwards, and when the through rod 407 does not clamp the closing plate 105, the closing plate 105 is enabled to slide to block the sampling hole 103 under the action of gas pressure so as to prevent marine sediments from falling;
at this time, the gas in the connecting pipe 1011 can be discharged through the sliding hole of the through rod 407, and the sampling barrel 1 is impacted reversely, so that the sampling barrel 1 can be conveniently retracted;
further comprising: a sampling stage 5; a driving motor 501 and a vertical plate 503 which are fixedly connected to the sampling platform 5; the rope winding roller 502 is rotatably connected to the vertical plate 503, and the rope winding roller 502 is fixedly connected to the output end of the driving motor 501; wound around the rope winding roller 502 to drive the rope 301; wherein, the sampling barrel 1 is fixedly connected on the driving pull rope 301, and the inflatable air bag 3 is connected on the driving pull rope 301 in a sliding way.
When the sampling barrel 1 is taken and placed, the driving motor 501 rotates, and the driving motor 501 can drive the rope winding roller 502 to rotate on the vertical plate 503 to drive the driving pull rope 301;
and when the inflatable air bag 3 moves up and down, the driving pull rope 301 can be a guide rail, so that the inflatable air bag 3 can slide conveniently.
Example 2:
referring to fig. 1-9, a marine geological environment exploration sampling method mainly comprises the following steps:
s1, starting a driving motor 501, wherein the driving motor 501 can drive a rope winding roller 502 to rotate on a vertical plate 503, so as to drive a driving pull rope 301, and drive a sampling barrel 1 to sink to the seabed under the action of the gravity of a balancing weight 2 and an inflatable air bag 3;
s2, when the sampling barrel 1 sinks to the seabed, the supporting leg 305 is firstly contacted with the seabed, the supporting leg 305 is supported by buoyancy, the supporting leg 305 moves upwards to press the supporting leg spring 3051, and gas in the supporting leg cavity 3052 enters the upper plunger cavity 3031 through the plunger through pipe 306 to push the upper sliding plunger 303 to slide, at the moment, the air bag plunger 302 is separated from the upper sliding plunger 303, and the inflatable air bag 3 moves upwards under the action of buoyancy;
s3, when the inflatable air bag 3 is separated from the sampling barrel 1, the sampling barrel 1 is further downwards moved to be inserted into the submarine geology under the action of the gravity of the balancing weight 2, so that the sampling effect of the sampling barrel 1 is improved;
s4, when the inflatable air bag 3 is separated from the sampling barrel 1, the inflatable air bag 3 moves upwards, the connecting pull rope 307 is pulled to move upwards, so that the connecting piston plate 4 is pulled to move upwards, the sampling cavity 102 is in a negative pressure state, and sea sediments at the bottom of the sea can be extracted to enter the sampling cavity 102 for sampling through the sampling hole 103;
s5, when the connecting piston plate 4 moves upwards, the gas in the upper gas cavity 101 is extruded, the gas enters the connecting pipe 1011 and the sliding cavity 104, and the pressure in the connecting pipe 1011 and the sliding cavity 104 is increased;
the connecting piston plate 4 moves upwards to drive the through rod 407 to move upwards, and when the through rod 407 does not clamp the closing plate 105, the closing plate 105 is enabled to slide to block the sampling hole 103 under the action of gas pressure so as to prevent marine sediments from falling;
at this time, the gas in the connecting pipe 1011 can be discharged through the sliding hole of the through rod 407, and the sampling barrel 1 is impacted reversely, so that the sampling barrel 1 can be conveniently retracted;
s6, retracting the rope winding roller 502, and pulling out the sampling barrel 1 to finish sampling.
Example 3:
referring to fig. 1-9, a method for marine geological environment exploration sampling, which is substantially the same as in example 2, further, after the inflatable airbag 3 is separated from the sampling barrel 1 and before the connection pull rope 307 is separated from the connection piston plate 4, the inflatable airbag 3 moves upward to pull the connection pull rope 307 to slide, and since the connection pull rope 307 is wound in a threaded manner with the rotating shaft 402, when the inflatable airbag 3 continuously pulls the connection pull rope 307 to move, the rotating shaft 402 rotates, the rotating shaft 402 drives the stirring shaft 401 to rotate, and the stirring shaft 401 drives the stirring rod 403 to stir marine sediments, so that when sampling marine sediments, the sampling effect is improved;
when the connecting piston plate 4 moves upwards, the stirring rod 403 can rotate to be closed in the stirring tank 406, and the stirring rod 403 is fixed under the influence of the magnetic force of the upper magnetic block 4051 and the lower magnetic block 405, so that the stirring rod 403 is prevented from unfolding after entering the sampling barrel 1;
according to the invention, the stability of the sampling barrel 1 during downward movement can be improved by the arranged inflatable air bag 3, the stirring shaft 401 can be conveniently rotated after the inflatable air bag 3 and the sampling barrel 1 are detachable, the mixing effect of marine sediments is improved, the sampling accuracy is further improved, and the connecting piston plate 4 can be pulled to move upwards when the inflatable air bag 3 moves upwards, so that the sampling cavity 102 can be conveniently sampled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A marine geological environment exploration sampler, comprising:
a sampling barrel (1);
a connecting piston plate (4) slidably connected in the sampling barrel (1);
wherein a sampling cavity (102) is arranged between the sampling barrel (1) and the connecting piston plate (4), and the sampling cavity (102) is positioned at the lower end of the connecting piston plate (4);
a balancing weight (2) fixedly connected to the sampling barrel (1);
the inflatable air bag (3) is detachably connected to the sampling barrel (1);
the lower end of the inflatable air bag (3) is detachably connected with the connecting piston plate (4) through a connecting pull rope (307), and when the inflatable air bag (3) is separated from the sampling barrel (1), the inflatable air bag (3) is used for pulling the connecting piston plate (4) to move upwards so that the sampling cavity (102) is in a negative pressure state to extract a sample;
an upper sliding inserted bar (303) is connected to the sampling barrel (1) in a sliding manner, an upper inserted bar spring (304) is fixedly connected to one end of the upper sliding inserted bar (303), one end, far away from the upper sliding inserted bar (303), of the upper inserted bar spring (304) is fixedly connected to the sampling barrel (1), an air bag inserted bar (302) is fixedly connected to the lower end of the inflatable air bag (3), the upper sliding inserted bar (303) is inserted into the air bag inserted bar (302), and a driving assembly for driving the upper sliding inserted bar (303) to slide is fixedly connected to the bottom of the sampling barrel (1);
the drive assembly includes:
an upper inserted link cavity (3031) and a supporting leg cavity (3052) which are arranged on the sampling barrel (1);
the upper sliding inserted link (303) is connected in an upper inserted link cavity (3031) in a sliding manner, and the upper inserted link cavity (3031) is communicated with the supporting leg cavity (3052) through an inserted link through pipe (306);
a support leg (305) slidably connected within the leg cavity (3052);
and the two ends of the supporting leg spring (3051) are respectively and fixedly connected to the sampling barrel (1) and the supporting leg (305).
2. The marine geological environment exploration sampler according to claim 1, characterized in that said connection pull rope (307) passes through the sampling barrel (1), the connection piston plate (4) is connected inside said connection piston plate (4).
3. The marine geological environment exploration sampler according to claim 2, wherein a lower sliding plunger (308) is slidably connected to the connecting piston plate (4), the lower sliding plunger (308) penetrates through the connecting pull rope (307), a lower plunger spring (309) is fixedly connected to the lower end of the lower sliding plunger (308), one end of the lower plunger spring (309) far away from the lower sliding plunger (308) is fixedly connected to the connecting piston plate (4), and the upper end of the lower sliding plunger (308) is matched with the inner upper wall of the sampling barrel (1).
4. The marine geological environment exploration sampler according to claim 3, wherein a rotating shaft (402) is rotatably connected in the connecting piston plate (4), a stirring shaft (401) is fixedly connected to the lower end of the rotating shaft (402), a stirring rod (403) is connected to the stirring shaft (401), and the connecting pull rope (307) is wound on the rotating shaft (402) in a threaded manner.
5. The marine geological environment exploration sampler according to claim 4, wherein the stirring rod (403) is rotatably connected to the stirring shaft (401), a stirring groove (406) for accommodating the stirring rod (403) is formed in the stirring shaft (401), the stirring groove (406) is connected with the stirring rod (403) through a U-shaped elastic sheet (404), a lower magnetic block (405) is fixedly connected to the stirring groove (406), an upper magnetic block (4051) is fixedly connected to the stirring rod (403), and the upper magnetic block (4051) and the lower magnetic block (405) are magnetically attracted.
6. The marine geological environment exploration sampler according to claim 1, characterized in that an upper air cavity (101) is arranged between the sampling barrel (1) and the connecting piston plate (4), the upper air cavity (101) is located at the upper end of the connecting piston plate (4), the lower end of the sampling barrel (1) is fixedly connected with a sampling hole (103) communicated with the sampling cavity (102), the sampling barrel (1) is provided with a sliding cavity (104), the sliding cavity (104) is slidably connected with a closing plate (105) inserted on the sampling hole (103), the upper air cavity (101) is communicated with the sliding cavity (104) through a connecting pipe (1011), the connecting piston plate (4) is fixedly connected with a through rod (407), and the through rod (407) penetrates through the closing plate (105) and the lower end of the sampling barrel (1).
7. The marine geological environment exploration sampler of claim 1, further comprising:
a sampling station (5);
a driving motor (501) and a vertical plate (503) which are fixedly connected to the sampling platform (5);
the rope winding roller (502) is rotatably connected to the vertical plate (503), and the rope winding roller (502) is fixedly connected to the output end of the driving motor (501);
the pulling rope (301) is wound on the rope winding roller (502) to drive the pulling rope;
wherein, sample bucket (1) fixed connection is on drive stay cord (301), inflatable airbag (3) sliding connection is on drive stay cord (301).
8. A marine geological exploration sampling method comprising the marine geological exploration sampling device of any of claims 1-7, and mainly comprising the steps of:
s1, starting a driving motor (501), driving a rope winding roller (502) to rotate to discharge a driving pull rope (301), and driving a sampling barrel (1) to sink to the seabed under the action of the gravity of a balancing weight (2) and an inflatable air bag (3);
s2, when the sampling barrel (1) sinks to the seabed, the supporting leg (305) moves upwards to press gas in the supporting leg cavity (3052) to enter the upper inserted link cavity (3031) through the inserted link through pipe (306) so as to drive the upper sliding inserted link (303) to slide, so that the air bag inserted link (302) is separated from the upper sliding inserted link (303), namely the inflatable air bag (3) is separated from the sampling barrel (1);
s3, when the inflatable air bag (3) is separated from the sampling barrel (1), the sampling barrel (1) further moves downwards to be inserted into the seabed geology under the action of the gravity of the balancing weight (2);
s4, when the inflatable air bag (3) is separated from the sampling barrel (1), the inflatable air bag (3) moves upwards, the connecting pull rope (307) is pulled to move upwards so as to pull the connecting piston plate (4) to move upwards, the sampling cavity (102) is in a negative pressure state, and a sample to be sampled is extracted through the sampling hole (103);
s5, when the connecting piston plate (4) moves upwards, gas in the sampling cavity (102) enters the sliding cavity (104) through the connecting pipe (1011), so that the gas has a tendency of pushing the closing plate (105) to slide, when the through rod (407) moves upwards and does not clamp the closing plate (105), the gas pushes the closing plate (105) to close the sampling hole (103), and the gas is exhausted from the sliding cavity of the through rod (407);
s6, retracting the rope winding roller (502), and pulling out the sampling barrel (1) to finish sampling.
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| CN115901361B (en) * | 2023-03-09 | 2023-06-06 | 山东环保产业研究院有限公司 | Ecological environment detection device |
| CN117109972B (en) * | 2023-08-10 | 2024-03-26 | 广东海洋大学 | Device for simultaneously collecting marine sediment and seabed water sample |
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