CN117890153A - Acquisition device for detecting seabed sediment pollutants - Google Patents

Abstract

The invention relates to a sediment sampling device, in particular to a collection device for detecting seabed sediment pollutants. The device comprises a supporting sleeve and a sampling tube arranged in the supporting sleeve, wherein a locking mechanism is arranged at the lower part of the supporting sleeve, a driving mechanism matched with the sampling tube is arranged at the top of the supporting sleeve, the driving mechanism comprises a motor support seat which is in threaded connection with the top of the supporting sleeve, and an upper groove is formed in the top of the motor support seat. Its structural design is reasonable, carries, convenient operation, does not influence diver's dive, and the device can be firm be fixed in the seabed, need not diver and carries out complicated operation, can gather deep bed mud, and automatic collection has improved the stability when boring greatly and has reduced the degree of difficulty of gathering to, the bed mud that gathers can not break away at diver's return journey in-process, remains the layering nature of bed mud throughout, has solved the problem that exists among the prior art.

Description

Acquisition device for detecting seabed sediment pollutants

Technical Field

The invention relates to a sediment sampling device, in particular to a collection device for detecting seabed sediment pollutants.

Background

Marine pollution generally means that humans change the original state of the ocean, and the marine ecosystem is destroyed. The pollution caused by the harmful substances entering the ocean environment can damage biological resources, harm human health, prevent fishing and other activities of human beings at sea, damage sea water quality and environmental quality, and the like. The marine pollutants in China mainly originate from river entering the sea and drain outlets with the size distributed along the coast. The gazette shows that the river and the sewage outlet are respectively discharged into the ocean to 1148 ten thousand tons and 68.2 ten thousand tons of pollutants, which bring great pressure to the marine ecological environment, and are also direct factors for inducing various marine environment disasters such as red tide, green tide and the like. Not only has serious influence on the living environment of marine organisms, but also causes the phenomena of sea water invasion inland, coastal soil salinization and coastal erosion.

Especially in Bohai sea in China, the monitoring work of the sea entrance is very important, and the pollution sources are known and mastered through analysis data, so that the Bohai sea is an important means for preventing the increase of marine pollutants. The conventional monitoring work mainly comprises water quality detection, sediment detection and the like, wherein sediment detection mainly comprises the collection of bottom sediment of the sea, a diver is required to submerge the sea, and the bottom sediment is collected by a collection tool. However, in the actual collection process, there are a plurality of inconveniences: firstly, the collection of the bottom mud cannot be directly completed on a ship, a diver is required to dive, the diver cannot carry large-scale collection equipment when diving, and a common collection tool cannot be deeply inserted into the seabed due to the limitation of buoyancy on the seabed, so that the bottom mud on the surface layer of the seabed can only be collected, and the accuracy of data analysis is influenced; secondly, the water flow speed of the sea entrance is high, the collected bottom mud is difficult to keep in an original state, the stability of a tool is difficult to keep in the diving process, and if layered detection cannot be carried out on the bottom mud, the monitoring work is also influenced; thirdly, the diver performs submarine operation, the action is limited and is subjected to buoyancy, and the diver is difficult to autonomously exert force, so that the difficulty of acquisition is certainly increased.

Disclosure of Invention

The invention provides the acquisition device for detecting the seabed sediment pollutants, which has reasonable structural design, is convenient to carry and operate, does not influence the diving of a diver, can be firmly fixed on the seabed, can acquire deep sediment without complex operation of the diver, automatically acquires the sediment, greatly improves the stability during drilling and reduces the acquisition difficulty, and the acquired sediment cannot be dispersed in the return process of the diver, so that the layering property of the sediment is always maintained, thereby providing a good sample for later detection, ensuring more accurate data and more valuable analyzed data, and solving the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a seabed sediment pollutant detects uses collection system, including supporting sleeve and the sampling tube of setting in supporting sleeve, be equipped with locking mechanism in supporting sleeve lower part, be equipped with at supporting sleeve top with sampling tube complex actuating mechanism, actuating mechanism includes the motor support of threaded connection at supporting sleeve top, be equipped with the upper groove at motor support top, be equipped with rechargeable battery in the upper groove, a sealed lid screw thread closure is on upper groove opening part and butt on rechargeable battery, be equipped with the lower groove in motor support bottom, be equipped with the submersible motor in the lower groove, the output shaft of submersible motor links to each other with the screw rod coaxial line direction setting in the sampling tube is coaxial, be equipped with the constant head tank in the bottom of screw rod, be equipped with control panel in motor support one side, rechargeable battery, submersible motor link to each other with control panel through the wire respectively; the left side and the right side of the inner wall of the support sleeve are symmetrically provided with guide plates along the height direction respectively, a lower pressing piece is arranged in the support sleeve below the submersible motor, the lower pressing piece is connected with screw threads and is abutted to the top of the sampling tube, a piston block is arranged in the sampling tube at the lower part, the center of the top of the piston block is vertically provided with a positioning rod which is movably clamped in a positioning groove, the bottom of the sampling tube is provided with an earth drilling sleeve head, and two sides of the support sleeve at the upper part are symmetrically provided with handles respectively.

Optionally, the locking mechanism includes the flange of ring setting in support sleeve bottom, and the pressure disk is established to the movable cover on the support sleeve of flange top, is equipped with a plurality of staples in pressure disk bottom along its circumferencial direction interval, each the staple is the downward activity respectively and passes the flange, is equipped with a plurality of slider along its circumferencial direction interval respectively on the pressure disk inner wall, is equipped with a plurality of spout along its direction of height respectively on the support sleeve outer wall that corresponds each slider position, is equipped with the pedal on pressure disk both sides lateral wall symmetry respectively.

Optionally, be equipped with the cutting member respectively in the pedal of both sides, the cutting member includes handle of a knife, blade of a knife and blade, the blade inserts from the outer end of pedal to the joint is in pedal, is equipped with the fixture block at pedal outer end, is equipped with the draw-in groove with it on the blade of a knife of relative fixture block one side.

Optionally, the lower casting die includes the screw rod cup joints the seat of pushing down on, is equipped with the circular slot with sampling tube matched with in pushing down the seat bottom down, is equipped with a plurality of first exhaust holes that are linked together rather than the top in the circular slot.

Optionally, a plurality of second exhaust holes are arranged on the side wall of the supporting sleeve on the side close to the top.

Optionally, the earth boring sleeve head comprises a connecting sleeve which is connected with the bottom of the supporting sleeve in a threaded manner, a plurality of anti-skid grooves are arranged on the side wall of the connecting sleeve at intervals along the circumferential direction of the connecting sleeve, an annular cutter head is arranged at the bottom of the connecting sleeve, and a plurality of tooth grooves are uniformly arranged at the bottom of the annular cutter head at intervals along the circumferential direction of the annular cutter head.

Optionally, two guide plates near the bottom are respectively provided with clamping blocks which are clamped on the outer wall of the sampling tube.

Optionally, an L-shaped step is arranged on the motor support at the top of the upper groove, and a sealing ring matched with the sealing cover is arranged on the L-shaped step.

Optionally, the piston block is a rubber piston block.

Optionally, the sampling tube is an acrylic tube.

The invention adopts the technical proposal and has the advantages that: structural design is reasonable, carries, convenient operation, does not influence diver's dive, and the device can be firm be fixed in the seabed, need not diver and carries out complicated operation, can gather deep bed mud, and automatic collection has improved stability when boring greatly and has reduced the degree of difficulty of gathering to, the bed mud of gathering can not break up at diver's return in-process, keeps the layering of bed mud all the time, thereby provides good sample for later detection, makes the data more accurate, and the data of analysis is more valuable.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic view of the cross-sectional structure of A-A of FIG. 2;

FIG. 4 is a schematic perspective view of a support sleeve;

FIG. 5 is a schematic view of the bottom structure of FIG. 4;

FIG. 6 is a schematic perspective view of a piston block and a positioning rod;

FIG. 7 is a schematic perspective view of a driving mechanism;

FIG. 8 is a schematic perspective view of the hold-down member;

FIG. 9 is a schematic perspective view of an earth boring bit;

FIG. 10 is a schematic perspective view of a locking mechanism;

FIG. 11 is a schematic perspective view of a cutting member;

in the figure, 1, a supporting sleeve; 2. a sampling tube; 3. a motor support; 4. an upper groove; 5. a rechargeable battery; 6. sealing cover; 7. a lower groove; 8. a submersible motor; 9. a screw; 10. a positioning groove; 11. a control panel; 12. a guide plate; 13. a pressing piece; 1301. pressing down a seat; 1302. a circular groove; 1303. a first exhaust hole; 14. a piston block; 15. a positioning rod; 16. drilling an earth sleeve; 1601. a connection sleeve; 1602. an anti-skid groove; 1603. an annular cutter head; 1604. tooth slots; 17. a handle; 18. a flange; 19. a pressure plate; 20. fixing nails; 21. a slide block; 22. a chute; 23. stepping on the pedal; 24. a cutting member; 2401. a knife handle; 2402. knife blade; 2403. a blade body; 2404. a clamping block; 2405. a clamping groove; 25. a second exhaust hole; 26. clamping blocks; 27. an L-shaped step; 28. and (3) sealing rings.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-11, the acquisition device for detecting the seabed sludge pollutant comprises a supporting sleeve 1 and a sampling tube 2 arranged in the supporting sleeve 1, wherein a locking mechanism is arranged at the lower part of the supporting sleeve 1, a driving mechanism matched with the sampling tube 2 is arranged at the top 1 of the supporting sleeve, the driving mechanism comprises a motor support 3 which is connected to the top of the supporting sleeve 1 in a threaded manner, an upper groove 4 is arranged at the top of the motor support 3, a rechargeable battery 5 is arranged in the upper groove 4, a sealing cover 6 is in threaded closure at the opening of the upper groove 4 and is abutted to the rechargeable battery 5, a lower groove 7 is arranged at the bottom of the motor support 3, a submersible motor 8 is arranged in the lower groove 7, an output shaft of the submersible motor 8 is coaxially connected with a screw 9 arranged in the sampling tube 2 in the coaxial line direction, a positioning groove 10 is arranged at the bottom end of the screw 9, a control panel 11 is arranged at one side of the motor support 3, and the rechargeable battery 5 and the submersible motor 8 are respectively connected with the control panel 11 through wires; guide plates 12 are symmetrically arranged on the left side and the right side of the inner wall of the support sleeve 1 along the height direction of the guide plates respectively, a pressing piece 13 is arranged in the support sleeve 1 below the submersible motor 8, the pressing piece 13 is connected with a screw 9 in a threaded manner and is abutted to the top of the sampling tube 2, a piston block 14 is arranged in the sampling tube 2 at the lower part, a positioning rod 15 movably clamped in a positioning groove 10 is vertically arranged in the center of the top of the piston block 14, an earth boring sleeve head 16 is arranged at the bottom of the sampling tube 2, and handles 17 are symmetrically arranged on the two sides of the support sleeve 1 at the upper part respectively.

Optionally, the locking mechanism includes a flange 18 that is annularly arranged at the bottom of the support sleeve 1, a pressing plate 19 is movably sleeved on the support sleeve 1 above the flange 18, a plurality of fixing nails 20 are arranged at intervals along the circumferential direction at the bottom of the pressing plate 19, each fixing nail 20 respectively moves downwards to penetrate through the flange 18, a plurality of sliding blocks 21 are respectively arranged on the inner wall of the pressing plate 19 at intervals along the circumferential direction, a plurality of sliding grooves 22 are respectively arranged on the outer wall of the support sleeve 1 corresponding to the positions of each sliding block 21 along the height direction, and pedal plates 23 are respectively symmetrically arranged on the side walls at two sides of the pressing plate 19.

Optionally, the pedal 23 on both sides is respectively provided with a cutting member 24, the cutting member 24 comprises a knife handle 2401, a knife blade 2402 and a knife body 2403, the knife body 2403 is inserted from the outer end of the pedal 23 and is clamped in the pedal 23, a clamping block 2404 is arranged at the outer end of the pedal 23, and a clamping groove 2405 matched with the knife blade 2402 on one side of the opposite clamping block 2404 is arranged on the knife blade 2402. When encountering aquatic weeds, a diver can conveniently withdraw the cutting member 24, hold the cutter handle 2401 by hand, and cut the aquatic weeds flat by the cutter body 2403, so that the collection work is smoothly carried out.

Optionally, the pressing piece 13 includes a pressing seat 1301 screwed on the screw 9, a circular groove 1302 matched with the sampling tube 2 is provided at the bottom of the pressing seat 1301, and a plurality of first exhaust holes 1303 communicating with the top of the circular groove 1302 are provided in the circular groove 1302.

Optionally, a plurality of second exhaust holes 25 are provided on the side wall of the support sleeve 1 on the top side. The gas or seawater in the sampling tube 2 above the piston block 14 can be discharged to the outside through the second exhaust hole 25, thereby reducing resistance and preventing the gas from accumulating in the support sleeve 1 below the motor mount 3.

Optionally, the earth boring casing head 16 includes a connection sleeve 1601 screwed on the bottom of the support sleeve 1, a plurality of anti-slip grooves 1602 are disposed on the side wall of the connection sleeve 1601 along the circumferential direction, an annular cutter head 1603 is disposed on the bottom of the connection sleeve 1601, and a plurality of tooth grooves 1604 are disposed on the bottom of the annular cutter head 1603 along the circumferential direction at uniform intervals.

Optionally, two guide plates 12 on the side near the bottom are respectively provided with clamping blocks 26 which are clamped on the outer wall of the sampling tube 2. The position of the sampling tube 2 is positioned, so that the sampling tube 2 and the supporting sleeve 1 can always keep the coaxial line direction, and the sampling tube 2 can smoothly prick into deep bed mud.

Optionally, an L-shaped step 27 is arranged on the motor support 3 at the top of the upper groove 4, and a sealing ring 28 matched with the sealing cover 6 is arranged on the L-shaped step 27. The sealing performance in the upper groove 4 is further improved by the sealing ring 28, and the seawater is prevented from extending into the upper groove. When charging is required, the sealing cover 6 can be opened by screwing a handle on the sealing cover 6 so as to charge the rechargeable battery 5.

Optionally, the piston block 14 is a rubber piston block. The sealing performance of the piston block 14 and the sampling tube 2 is improved, so that the collected bottom mud is not easy to leak out.

Optionally, the sampling tube 2 is an acrylic tube. Through the acrylic tube, the hierarchy of the bottom mud can be directly observed, and the visual effect is good.

The device needs to be assembled on the bank, the rechargeable battery 5 needs to be fully charged during the assembly, the sealing cover 6 is connected to the top of the motor support 3 in a threaded manner, the motor support is closed on the upper groove 4, and the upper groove 4 forms a closed space. The motor support 3 is connected to the top of the supporting sleeve 1 in a threaded manner, so that an output shaft of the submersible motor 8 and the screw 9 extend into the supporting sleeve 1, and meanwhile, the lower pressing piece 13 is required to be sleeved on the upper portion of the screw 9 in a threaded manner, and when the screw 9 extends into the supporting sleeve, the lower pressing piece 13 is required to be clamped between the two guide plates 12 of the supporting sleeve 1. Then, the piston block 14 and the positioning cylinder 15 are penetrated from the bottom of the sampling tube 2, and the connecting sleeve 1601 is screwed, so that the earth boring sleeve 16 is in threaded connection with the bottom of the sampling tube 2, then the sampling tube 2 is penetrated from the bottom of the supporting sleeve 1, and the clamping blocks 26 arranged on the two guide plates 12 play a guiding role on the entering of the sampling tube 2, so that the sampling tube 2 and the supporting sleeve 1 can be ensured to be in the coaxial line direction. Along with the continuous extension of the sampling tube 2, the sampling tube 2 is clamped in the circular groove 1302 of the pressing seat 1301 until the sampling tube 2 is clamped, and the positioning rod 15 is smoothly clamped in the positioning groove 10 of the screw 9. Through the cooperation of the screw rod 9 and the positioning rod 15, on one hand, the rotation of the screw rod 9 can be fixed, so that the outer end of the screw rod 9 is fixed, and the screw rod is more stable in rotation; on the other hand, the piston block 14 can be kept in the sampling tube 2 straight up and down by the limit action of the screw 9 on the positioning rod 15.

The diver can conveniently control the device by holding the handle 17 or holding the handle on the sealing cover 6 when diving. When the diving device is submerged into the sea, the handles 17 are respectively grasped by two hands, so that the support sleeve 1 keeps the angle between the vertical direction and the sea bottom, at the moment, each fixing nail 20 is jacked up by the bottom mud and drives the pressure plate 19 to move upwards, and the diver respectively treads on the treading plate 23 of the pressure plate 19 twice by two feet. The pressure plate 19 slides downwards in the corresponding slide groove 22 by means of the slide block 21, so that the pressure plate passes smoothly through the flange 18 of the support sleeve 1. After the fixing nails 20 are completely pricked, the submersible motor 8 is started to work through the control panel 11, the output shaft of the submersible motor 8 drives the screw rod 9 to rotate, the pressing piece 13 is driven to slide downwards between the two guide plates 12, the sampling tube 2 is pressed downwards continuously through the downward movement of the pressing piece 13, the annular cutter head 1603 arranged at the bottom of the connecting sleeve 1601 reduces the resistance when the bottom mud is inserted, the sampling tube 2 is pricked smoothly, and the air at the upper part of the piston block 14 is discharged outwards along the first exhaust hole 1303. With the continuous downward movement of the sampling tube 2, the substrate sludge is continuously introduced into the sampling tube. After the collection, the handle 17 is pulled forcefully, the whole device is taken out, and the collected bottom mud cannot scatter along with the position change due to the fact that the piston block 14 and the sampling tube 2 form a closed space. Its structural design is reasonable, carries, convenient operation, does not influence diver's dive, and the device can be firm be fixed in the seabed, need not diver and carries out complicated operation, can gather deep bed mud, and automatic collection has improved the stability when boring greatly and has reduced the degree of difficulty of gathering to, the bed mud that gathers can not break away at diver's return journey in-process, keeps the layering nature of bed mud all the time, thereby provides good sample for later detection, makes the data more accurate, and the data of analysis is more valuable, has solved the problem that exists among the prior art.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention and are intended to be within the scope of the appended claims and description; any alternative modifications or variations to the embodiments of the present invention will fall within the scope of the present invention for those skilled in the art.

The present invention is not described in detail in the present application, and is well known to those skilled in the art.

Claims (10)

1. The acquisition device for detecting the seabed sediment pollutants is characterized by comprising a supporting sleeve and a sampling tube arranged in the supporting sleeve, wherein a locking mechanism is arranged at the lower part of the supporting sleeve, a driving mechanism matched with the sampling tube is arranged at the top of the supporting sleeve, the driving mechanism comprises a motor support seat which is in threaded connection with the top of the supporting sleeve, an upper groove is arranged at the top of the motor support seat, a rechargeable battery is arranged in the upper groove, a sealing cover is in threaded closure at the opening of the upper groove and is abutted against the rechargeable battery, a lower groove is arranged at the bottom of the motor support seat, a submersible motor is arranged in the lower groove, an output shaft of the submersible motor is coaxially connected with a screw rod arranged in the sampling tube in the direction of a coaxial line, a positioning groove is arranged at the bottom end of the screw rod, a control panel is arranged at one side of the motor support seat, and the rechargeable battery and the submersible motor are respectively connected with the control panel through wires; the left side and the right side of the inner wall of the support sleeve are symmetrically provided with guide plates along the height direction respectively, a lower pressing piece is arranged in the support sleeve below the submersible motor, the lower pressing piece is connected with screw threads and is abutted to the top of the sampling tube, a piston block is arranged in the sampling tube at the lower part, the center of the top of the piston block is vertically provided with a positioning rod which is movably clamped in a positioning groove, the bottom of the sampling tube is provided with an earth drilling sleeve head, and two sides of the support sleeve at the upper part are symmetrically provided with handles respectively.

2. The collection device for detecting the seabed sediment pollutants according to claim 1, wherein the locking mechanism comprises a flange which is annularly arranged at the bottom of the supporting sleeve, a pressing plate is movably sleeved on the supporting sleeve above the flange, a plurality of fixing nails are arranged at intervals along the circumferential direction of the bottom of the pressing plate, each fixing nail downwards moves through the flange respectively, a plurality of sliding blocks are arranged on the inner wall of the pressing plate at intervals along the circumferential direction of the pressing plate respectively, a plurality of sliding grooves are arranged on the outer wall of the supporting sleeve corresponding to the positions of each sliding block respectively along the height direction of the supporting sleeve, and treading plates are symmetrically arranged on the side walls of two sides of the pressing plate respectively.

3. The collecting device for detecting the seabed sediment pollutants according to claim 2, wherein the cutting pieces are respectively arranged in pedal plates at two sides, each cutting piece comprises a cutter handle, a cutter blade edge and a cutter body, the cutter bodies are inserted from the outer ends of the pedal plates and are clamped in the pedal plates, clamping blocks are arranged at the outer ends of the pedal plates, and clamping grooves matched with the cutter blade edges at one side of the opposite clamping blocks are formed in the cutter blade edges.

4. The collecting device for detecting the seabed sediment pollutants according to claim 1, wherein the pressing piece comprises a pressing seat which is sleeved on a screw rod through threads, a round groove matched with the sampling tube is formed in the bottom of the pressing seat, and a plurality of first exhaust holes communicated with the top of the round groove are formed in the round groove.

5. The collecting device for detecting the seabed sludge pollutant according to claim 4, wherein a plurality of second exhaust holes are formed in the side wall of the supporting sleeve on the side close to the top.

6. The collecting device for detecting the seabed sediment pollutants according to claim 3, wherein the earth boring sleeve head comprises a connecting sleeve which is connected with the bottom of the supporting sleeve in a threaded mode, a plurality of anti-skid grooves are formed in the side wall of the connecting sleeve at intervals along the circumferential direction of the connecting sleeve, annular cutter heads are arranged at the bottom of the connecting sleeve, and a plurality of tooth grooves are uniformly formed in the bottom of the annular cutter heads at intervals along the circumferential direction of the annular cutter heads.

7. The collecting device for detecting the seabed sediment pollutants according to claim 1, wherein clamping blocks which are clamped on the outer wall of the sampling tube are respectively arranged on two guide plates on the side close to the bottom.

8. The collecting device for detecting the seabed sediment pollutants, as claimed in claim 1, wherein the motor support at the top of the upper groove is provided with an L-shaped step, and the L-shaped step is provided with a sealing ring matched with the sealing cover.

9. The collection device for detecting the seabed sludge contaminant according to claim 1, wherein the piston block is a rubber piston block.

10. The collecting device for detecting the seabed sludge pollutant according to claim 1 or 2, wherein the sampling tube is an acrylic tube.