CN219352818U - Marine bottom layer biological investigation sampling trawl - Google Patents
Marine bottom layer biological investigation sampling trawl Download PDFInfo
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- CN219352818U CN219352818U CN202320065938.6U CN202320065938U CN219352818U CN 219352818 U CN219352818 U CN 219352818U CN 202320065938 U CN202320065938 U CN 202320065938U CN 219352818 U CN219352818 U CN 219352818U
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- trawl
- sealing plate
- mounting frame
- sampling
- marine bottom
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The application relates to a marine bottom biological investigation sampling trawl relates to marine monitoring biological investigation equipment's technical field, including installing frame and trawl body, be provided with sealing mechanism on the installing frame, sealing mechanism includes mounting panel, drive assembly and locating component. The driving component starts to drive the closing plate to rotate, the locating component cooperation is spacing to the closing plate simultaneously, make the net mouth open, in whole putting into sampling environment with installing frame and trawl body, the marine organism gets into trawl body through the net mouth, after reaching sampling time, the driving component starts to drive the closing plate and gyration, the locating component cooperation is fixed a position the closing plate simultaneously, make the net mouth sealed, seal the net mouth through closing plate and locating component cooperation, thereby reduce the biology and break away from the probability of trawl body through the net mouth, with this accuracy that improves marine bottom biological sampling, therefore the accuracy of surveying marine bottom organism has been improved.
Description
Technical Field
The application relates to the technical field of marine monitoring biological investigation equipment, in particular to a marine bottom biological investigation sampling trawl.
Background
Ocean has rich natural resources such as biological resources, mineral resources and water resources, so that ocean investigation is the basic means for people to explore ocean, know ocean and utilize ocean, and biological samples in seawater with different depths are collected for detection and research, so that the ocean investigation has great significance in the aspect of marine research.
For sampling biological samples in seas at different depths, different sampling tools are usually used, and currently, a mud sampler, an Altrawl, a manned submersible vehicle and an unmanned submersible vehicle are usually adopted for collecting marine bottom organisms. But the dredger is only suitable for the collection of micro-organisms. The sampling and operation method depending on the platforms such as manned deep diving equipment, unmanned deep diving equipment and the like has higher cost and complex operation, has lower underwater speed, is more suitable for directly observing the life phenomenon of the bottom layer of the ocean, and is not suitable for sampling swimming organisms. Trawl is a conventional method for marine bottom layer biological investigation, commonly used for biological sampling in shallow sea, and gradually used for sampling of deep sea organisms.
The commonly used Als trawl comprises a frame and a trawl installed on the frame, the frame and the trawl are placed in the sea, the frame is connected with a steel cable, the trawl is then lowered to a designated sea depth through a winch or a sampling ship, then the trawl is dragged, benthos enters the trawl along with the dragging of the trawl, finally the whole trawl is lifted off the sea surface, the organisms in the trawl are transported to a monitoring platform for statistics and investigation, but the net opening is always in an open state, and in the process of lifting the trawl after sampling, the organisms with swimming capability in the trawl can swim out from the net opening, so that the accuracy of marine bottom organism sampling is reduced, and the accuracy of investigating marine bottom organisms is reduced.
Disclosure of Invention
In order to improve the accuracy of investigation on marine bottom organisms, the application provides a marine bottom organism investigation sampling trawl.
The application provides a marine bottom biological investigation sampling trawl adopts following technical scheme:
the utility model provides a marine bottom biological investigation sampling trawl, includes installing frame and trawl body, the net gape setting of trawl body is on the installing frame, be provided with the sealing mechanism who is used for sealing the net gape on the installing frame, sealing mechanism includes:
the sealing plate is rotatably arranged on the mounting frame and is abutted against the net opening and used for sealing the net opening;
the driving assembly is arranged on the mounting frame and is connected with the sealing plate;
and the positioning assembly is arranged on the mounting frame and is connected with the sealing plate.
Through adopting above-mentioned technical scheme, drive assembly starts and drives the closing plate and rotate, the locating component cooperation is spacing to the closing plate simultaneously, make the net mouth open, put into sampling environment with the installation frame and trawl body is whole, make the installation frame sink to the seabed, sampling personnel drive sampling boat drive installation frame and trawl remove, the marine organism gets into in the trawl body through the net mouth, after reaching sampling time, drive assembly starts and drives the closing plate gyration, the locating component cooperation is fixed a position the closing plate simultaneously, make the net mouth sealed, then carry out the lifting with installation frame and trawl body wholly, then can carry out statistics and investigation to the biological sample in the trawl body, seal the net mouth through closing plate and locating component cooperation, thereby reduce the probability that living beings break away from the trawl body through the net mouth, with this accuracy that improves marine bottom biological sampling, therefore, the accuracy of surveying marine bottom biological has been improved.
Optionally, the driving assembly includes:
the driving shaft is rotatably arranged on the mounting frame, and the sealing plate is arranged on the driving shaft;
and the driving motor is arranged on the mounting frame, and the output shaft is connected with the driving shaft.
Through adopting above-mentioned technical scheme, driving motor starts and drives the drive shaft and rotate, and the drive shaft rotates and drives the closing plate and rotate for the closing plate is kept away from or is close to the net gape, with this opening or sealing that realizes the net gape, thereby has improved the convenience of net gape switching, thereby reduces the biology and breaks away from the probability of trawl body through the net gape, with this accuracy that improves ocean bottom biological sampling, consequently improved the accuracy of surveying ocean bottom biological.
Optionally, the positioning assembly includes:
the positioning block is arranged on the mounting frame, is abutted against the sealing plate and is used for limiting the rotation angle of the sealing plate;
the clamping block is arranged on the sealing plate and is clamped on the mounting frame.
By adopting the technical scheme, the driving motor starts to drive the sealing plate to rotate, the sealing plate rotates to drive the clamping block to separate from the installation frame, the sealing plate rotates along with the driving shaft, and when the sealing plate is in a horizontal state, the sealing plate is abutted against the positioning block, so that the rotation angle of the sealing plate is limited, and the probability that the installation frame cannot be abutted against the sea floor due to excessive rotation of the sealing plate is reduced; after the sampling is finished, the driving motor starts to drive the sealing plate to be far away from the positioning block until the clamping block is clamped and installed on the installation frame, so that the probability that organisms are separated from the trawl body due to the deviation of the position of the sealing plate is reduced, the sealing plate is limited by matching the clamping block with the positioning block, the convenience of limiting the sealing plate is improved, the convenience and the accuracy of marine bottom biological sampling are improved, and the accuracy of investigation on the marine bottom organisms is improved.
Optionally, the trawl body is detachably disposed on the mounting frame through a connection mechanism, and the connection mechanism includes:
the connecting rod is arranged on the mounting frame;
the pressing buckle is arranged on the net mouth and buckled on the connecting rod, and a limiting groove for limiting the pressing buckle is formed in the connecting rod;
and the limiting assembly is arranged on the mounting frame and is connected with the trawl body and used for limiting the trawl body.
By adopting the technical scheme, the limiting assembly is opened, then the pressing button is pressed to enable the pressing button to be separated from the connecting rod, the installation frame is pulled to be separated from the trawl body, and then the trawl body can be transported or stored independently, so that the occupied space for transporting biological samples in the trawl is reduced, and the convenience of marine bottom biological sampling and transportation is improved; meanwhile, the proper trawl body can be replaced according to the size and the number of the biological samples to be collected, so that the convenience of investigation on marine bottom organisms is improved.
Optionally, the limiting assembly includes:
the limiting clamp is arranged on the mounting frame and clamped on the trawl body;
the rubber block is arranged on the limiting clamp and is abutted between the trawl body and the limiting clamp, and the rubber block is used for limiting the trawl body.
By adopting the technical scheme, the rubber block is far away from the trawl body by the extrusion limiting clamp, the trawl body is stirred to be separated from the installation frame, then the extrusion pressing buckle is pressed to enable the pressing buckle to be separated from the connecting rod, then the installation frame is pulled to be far away from the trawl body, the trawl body can be transported or replaced independently, during installation, the pressing buckle is firstly buckled on the connecting rod, then the rubber block is clamped and abutted against a net rope of the trawl body by the extrusion limiting clamp, the trawl body and a net opening are limited by the cooperation of the limiting clamp and the pressing buckle, and the front opening and the rear opening of the trawl on the installation frame are consistent, so that the convenience of biology entering the trawl body is improved; meanwhile, the trawl body is clamped through the limiting clamp, so that the installation frame bears the water level pressure received by part of the trawl body, the service life of the trawl body is prolonged, and the accuracy and convenience for investigating marine bottom organisms are improved.
Optionally, an auxiliary pull rope is arranged on the mounting frame, and the auxiliary pull rope is connected with the sealing plate and used for carrying out auxiliary positioning on the sealing plate.
Through adopting above-mentioned technical scheme, driving motor starts and drives the closing plate and rotate, be the horizontality when supporting tightly on the locating piece when the closing plate, auxiliary stay cord is in the tensioning state to this carries out assistance-localization to the closing plate, thereby when having reduced locating plate and submarine reef collision and damaged, can't carry out spacing probability to the rotation angle of closing plate, consequently improved carry out spacing convenience to the closing plate, reduced simultaneously the closing plate excessively and rotated the probability that causes the destruction to the submarine environment, with this convenience and the accuracy that have improved ocean bottom biological sampling, consequently improved the accuracy of surveying ocean bottom biological investigation.
Optionally, a plurality of water permeable holes are spaced apart on the sealing plate.
Through adopting above-mentioned technical scheme, the hole of permeating water is convenient for sea water flow, has alleviateed the weight of closing plate through setting up the hole of permeating water simultaneously to this has reduced the convenience that installing frame and trawl body removed, has improved closing plate pivoted convenience simultaneously, with this convenience and the accuracy that have improved ocean bottom biological sampling, has consequently improved the accuracy of surveying ocean bottom biological.
Optionally, an underwater camera which is convenient for observing the submarine organisms is arranged on the installation frame.
Through adopting above-mentioned technical scheme, the biological kind and the quantity in the trawl body of sampling personnel's real-time observation of being convenient for under water camera to in time receive the net, with this convenience and the accuracy that have improved ocean bottom biological sampling, consequently improved the accuracy of surveying ocean bottom biological.
Optionally, a plurality of pull rings convenient for dragging are arranged on the mounting frame at intervals.
Through adopting above-mentioned technical scheme, a plurality of pull rings cooperation carry out the bearing to this convenience that has improved installing frame and trawl body and removed.
In summary, the present application includes at least one of the following beneficial technical effects:
the driving component starts to drive the sealing plate to rotate, the positioning component cooperates to limit the sealing plate, the net mouth is opened, the installation frame and the trawl net body are integrally placed in a sampling environment, the installation frame sinks to the sea floor, a sampling ship is driven by sampling personnel to drive the installation frame and the trawl net to move, the marine organisms enter the trawl net body through the net mouth, after sampling time is reached, the driving component starts to drive the sealing plate to rotate, the positioning component cooperates to position the sealing plate, the net mouth is sealed, then the installation frame and the trawl net body are lifted integrally, biological samples in the trawl net body can be counted and investigated, the net mouth is sealed through cooperation of the sealing plate and the positioning component, and therefore the probability that the organisms break away from the trawl net body through the net mouth is reduced, and the accuracy of marine organism sampling is improved, and the accuracy of investigating marine organism is improved.
Drawings
FIG. 1 is a schematic overall structure of the present application;
FIG. 2 is a schematic structural view of the connecting mechanism of the present application;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 2;
fig. 5 is a schematic view of the drive assembly of the present application, wherein the drive motor is exploded away from the drive shaft.
Reference numerals: 1. a mounting frame; 11. a trawl body; 111. a mesh; 12. a net opening; 13. an underwater camera; 14. a pull ring; 15. a clamping groove; 16. an auxiliary pull rope; 2. a sealing mechanism; 21. a sealing plate; 211. a water permeable hole; 22. a drive assembly; 221. a drive shaft; 222. a driving motor; 23. a positioning assembly; 231. a positioning block; 232. a clamping block; 3. a connecting mechanism; 31. a connecting rod; 311. a limit groove; 32. pressing the button; 33. a limit component; 331. a limiting clamp; 332. rubber blocks.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a marine bottom layer biological investigation sampling trawl.
Referring to fig. 1 and 2, a marine bottom layer biological investigation sampling trawl comprises a mounting frame 1 and a trawl body 11, wherein a plurality of meshes 111 are arranged on the trawl body 11 at intervals, a net opening 12 of the trawl body 11 is arranged on the mounting frame 1, the aperture of the mesh 111 close to the net opening 12 is larger than that of the mesh 111 far away from the net opening 12, and a sealing mechanism 2 for sealing the net opening 12 is arranged on the mounting frame 1; in the drawings of the present application, the trawl body 11 is in a fully unfolded state, and the trawl body 11 is not limited in actual use.
Referring to fig. 1, the installation frame 1 is in a rectangular parallelepiped shape, the opening size of the installation frame 1 is consistent with the net mouth 12, and an underwater camera 13 which is convenient for observing the submarine organisms is fixedly installed on the lower surface of one end of the installation frame 1 far away from the trawl body 11; a plurality of pull rings 14 which are convenient to drag are fixedly arranged on the outer side wall of the mounting frame 1 at intervals.
Referring to fig. 1 and 2, the trawl body 11 is detachably provided on the mounting frame 1 through a connection mechanism 3, and the connection mechanism 3 includes a connection rod 31, a pressing buckle 32 and a limiting assembly 33.
Referring to fig. 2 and 3, the size of the connecting rod 31 is consistent with that of the net opening 12, the connecting rod 31 is fixedly installed on the inner side wall of one end of the installation frame 1 close to the net opening 12, and a plurality of limiting grooves 311 are formed in the connecting rod 31 at intervals; the pressing buckles 32 are provided in plurality, the pressing buckles 32 are fixedly installed on the net mouth 12 at intervals, and the pressing buckles 32 are buckled on the inner bottom wall of the limiting groove 311.
Referring to fig. 1 and 4, a limiting assembly 33 is disposed on the mounting frame 1 and connected with the trawl body 11 for limiting the trawl body 11, the limiting assembly 33 includes a plurality of limiting clamps 331 and rubber blocks 332, the limiting clamps 331 are disposed on a plurality of outer side walls of the mounting frame 1 at an end far away from the net opening 12, and the limiting clamps 331 are clamped on net ropes of the trawl body 11, so that an opening of the trawl body 11 located in the mounting frame 1 is consistent with the net opening 12 in size,
referring to fig. 2 and 4, the rubber block 332 is provided with a plurality of groups and corresponds to the limiting clips 331 one by one, each group of limiting clips 331 includes two, the rubber block 332 is fixedly mounted on the clamping surface of the limiting clip 331, and the rubber block 332 abuts between the trawl body 11 and the limiting clip 331 and is used for limiting the trawl body 11.
Referring to fig. 2 and 4, during installation, the pressing buckle 32 is firstly buckled on the limiting groove 311, then the limiting clamp 331 is pressed to enable the rubber block 332 to clamp and abut against the net rope of the trawl body 11, and the trawl body 11 and the net opening 12 are limited by matching the limiting clamp 331 with the pressing buckle 32, so that the front opening and the rear opening of the trawl on the installation frame 1 are consistent, and convenience for the living beings to enter the trawl body 11 is improved.
Referring to fig. 1 and 4, the trawl body 11 is clamped by the limiting clamp 331 at the same time, so that the installation frame 1 bears part of the water level pressure received by the trawl body 11, thereby prolonging the service life of the trawl body 11, and improving the accuracy and convenience of investigation on marine bottom organisms.
Referring to fig. 1 and 5, the sealing mechanism 2 includes a sealing plate 21 and a driving assembly 22, the sealing plate 21 is rotatably disposed on an outer sidewall of one end of the installation frame 1 near the net opening 12, and the sealing plate 21 has a size consistent with that of the net opening 12 and is used for sealing the net opening 12; the sealing plate 21 is provided with a plurality of water permeable holes 211 at intervals, and the diameter of the water permeable holes 211 is smaller than that of the mesh 111.
Referring to fig. 1 and 5, the driving assembly 22 is disposed on the mounting frame 1 and connected with the sealing plate 21, the driving assembly 22 includes a driving shaft 221 and a driving motor 222, the driving shaft 221 is rotatably mounted on the bottom end of the mounting frame 1 near the outer sidewall of one end of the net mouth 12, and the driving shaft 221 is in a horizontal state, and the bottom end of the sealing plate 21 is fixedly mounted on the driving shaft 221.
Referring to fig. 1 and 5, a driving motor 222 is fixedly installed on an outer sidewall of the installation frame 1, an output shaft of the driving motor 222 is in a horizontal state and is connected with a driving shaft 221, and the driving motor 222 has a waterproof function; the driving motor 222 starts to drive the driving shaft 221 to rotate, and the driving shaft 221 rotates to drive the sealing plate 21 to rotate, so that the sealing plate 21 is far away from or close to the net opening 12, and the net opening 12 is opened or sealed, so that the convenience of opening and closing the net opening 12 is improved, the probability that organisms are separated from the trawl body 11 through the net opening 12 is reduced, the accuracy of marine bottom layer organism sampling is improved, and the accuracy of investigation on the marine bottom layer organisms is improved.
Referring to fig. 1 and 5, the sealing mechanism 2 further includes a positioning component 23, the positioning component 23 is disposed on the mounting frame 1 and is connected with the sealing plate 21, the positioning component 23 includes a positioning block 231 and a clamping block 232, the positioning block 231 is provided with two positioning blocks 231, the two positioning blocks 231 are fixedly mounted on the outer side wall of the mounting frame 1 far away from the trawl body 11 at intervals, and the two positioning blocks 231 are located below the sealing plate 21, the positioning blocks 231 are in a horizontal state and are projected in the horizontal direction to be in an L shape, and when the sealing plate 21 rotates to be in a horizontal state, the upper surfaces of the two positioning blocks 231 are abutted against the lower surface of the sealing plate 21 so as to limit the rotation angle of the sealing plate 21.
Referring to fig. 1 and 5, two clamping blocks 232 are provided, the two clamping blocks 232 are fixedly installed on the outer side wall of the sealing plate 21, which is close to the installation frame 1, two clamping grooves 15 are formed on the outer side wall of the installation frame 1 at intervals, and when the sealing plate 21 rotates to seal the net opening 12, the clamping blocks 232 are installed on the inner side walls of the clamping grooves 15 in a clamping mode.
Referring to fig. 1 and 5, auxiliary pull ropes 16 are fixedly mounted on two opposite outer side walls of the mounting frame 1, which are close to one end of the sealing plate 21, and the other ends of the two auxiliary pull ropes 16 are connected with the two opposite outer side walls of the sealing plate 21 and are used for carrying out auxiliary positioning on the sealing plate 21.
Referring to fig. 1 and 5, the driving motor 222 is started to drive the sealing plate 21 to rotate, the sealing plate 21 rotates to drive the clamping block 232 to be separated from the clamping groove 15, the sealing plate 21 rotates along with the driving shaft 221, when the sealing plate 21 is in a horizontal state, the sealing plate 21 abuts against the positioning block 231 to limit the rotation angle of the sealing plate 21, and meanwhile, the auxiliary stay cord 16 is in a tensioning state to assist in positioning the sealing plate 21, so that the probability that the mounting frame 1 cannot be abutted against the sea floor due to excessive rotation of the sealing plate 21 is reduced.
Referring to fig. 1 and 5, after sampling is completed, the driving motor 222 starts to drive the sealing plate 21 to be far away from the positioning block 231 until the clamping block 232 is clamped and installed on the installation frame 1, so that the probability that organisms are separated from the trawl body 11 due to the deviation of the position of the sealing plate 21 is reduced, the sealing plate 21 is limited by matching the clamping block 232 with the positioning block 231, the convenience of limiting the sealing plate 21 is improved, the convenience and accuracy of marine bottom organism sampling are improved, and the accuracy of investigation on marine bottom organisms is improved.
The working principle of the embodiment of the application is as follows:
firstly, the pressing buckle 32 is buckled on the limiting groove 311, then the limiting clamp 331 is extruded to enable the rubber block 332 to clamp and prop against the net rope of the trawl body 11, and the trawl body 11 and the net opening 12 are limited by the matching of the limiting clamp 331 and the pressing buckle 32, so that the front opening and the rear opening of the trawl on the mounting frame 1 are consistent, and the convenience for the organisms to enter the trawl body 11 is improved; the driving motor 222 is started to drive the sealing plate 21 to rotate until the sealing plate 21 abuts against the positioning block 231, and the auxiliary stay cord 16 is in a tensioning state, so that the net opening 12 is opened.
The installation frame 1 and the trawl body 11 are placed in seawater and sink to the sea bottom, sampling personnel drive a sampling ship to drag the installation frame 1 so as to sample the marine organisms, after sampling is finished, the driving motor 222 starts to drive the sealing plate 21 to rotate until the clamping block 232 is clamped and installed on the clamping groove 15, the installation frame 1 and the trawl body 11 are lifted up, then biological samples in the trawl body 11 can be counted and investigated, the net opening 12 is sealed by matching the sealing plate 21, the positioning block 231 and the clamping block 232, so that the probability that the organisms break away from the trawl body 11 through the net opening 12 is reduced, the accuracy of marine bottom organism sampling is improved, and the accuracy of investigating the marine bottom organisms is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. The utility model provides a marine bottom biological investigation sampling trawl, includes installing frame (1) and trawl body (11), net gape (12) setting of trawl body (11) are on installing frame (1), its characterized in that: the installation frame (1) is provided with a sealing mechanism (2) for sealing the net opening (12), and the sealing mechanism (2) comprises:
the sealing plate (21) is rotatably arranged on the mounting frame (1) and is abutted against the net opening (12) and used for sealing the net opening (12);
a drive assembly (22), the drive assembly (22) being arranged on the mounting frame (1) and being connected with the sealing plate (21);
and the positioning assembly (23) is arranged on the mounting frame (1) and is connected with the sealing plate (21).
2. A marine bottom layer biological survey sampling trawl according to claim 1, wherein: the drive assembly (22) includes:
-a drive shaft (221), the drive shaft (221) being rotatably arranged on the mounting frame (1), the sealing plate (21) being arranged on the drive shaft (221);
and a drive motor (222), wherein the drive motor (222) is arranged on the mounting frame (1) and the output shaft is connected with the drive shaft (221).
3. A marine bottom layer biological survey sampling trawl according to claim 2, wherein: the positioning assembly (23) comprises:
the positioning block (231) is arranged on the mounting frame (1) and abutted against the sealing plate (21) for limiting the rotation angle of the sealing plate (21);
the clamping block (232), the clamping block (232) is arranged on the sealing plate (21) and is clamped on the mounting frame (1).
4. A marine bottom layer biological survey sampling trawl according to claim 1, wherein: the trawl body (11) is detachably arranged on the mounting frame (1) through the connecting mechanism (3), and the connecting mechanism (3) comprises:
a connecting rod (31), the connecting rod (31) being arranged on the mounting frame (1);
the pressing buckle (32) is arranged on the net mouth (12) and buckled on the connecting rod (31), and a limiting groove (311) for limiting the pressing buckle (32) is formed in the connecting rod (31);
the limiting assembly (33) is arranged on the mounting frame (1) and is connected with the trawl body (11) and used for limiting the trawl body (11).
5. The marine floor biological survey sampling trawl of claim 4, wherein: the limit assembly (33) comprises:
the limiting clamp (331) is arranged on the mounting frame (1) and clamped on the trawl body (11);
the rubber block (332), rubber block (332) set up on spacing clamp (331) and support tightly between trawl body (11) and spacing clamp (331) and be used for spacing trawl body (11).
6. A marine bottom layer biological survey sampling trawl according to claim 3, wherein: an auxiliary stay cord (16) is arranged on the mounting frame (1), and the auxiliary stay cord (16) is connected with the sealing plate (21) and used for carrying out auxiliary positioning on the sealing plate (21).
7. A marine bottom layer biological survey sampling trawl according to claim 1, wherein: a plurality of water permeable holes (211) are formed in the sealing plate (21) at intervals.
8. A marine bottom layer biological survey sampling trawl according to claim 1, wherein: the installation frame (1) is provided with an underwater camera (13) which is convenient for observing the submarine organisms.
9. A marine bottom layer biological survey sampling trawl according to claim 1, wherein: a plurality of pull rings (14) which are convenient to drag are arranged on the mounting frame (1) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065938.6U CN219352818U (en) | 2023-01-05 | 2023-01-05 | Marine bottom layer biological investigation sampling trawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320065938.6U CN219352818U (en) | 2023-01-05 | 2023-01-05 | Marine bottom layer biological investigation sampling trawl |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219352818U true CN219352818U (en) | 2023-07-18 |
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ID=87153188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320065938.6U Active CN219352818U (en) | 2023-01-05 | 2023-01-05 | Marine bottom layer biological investigation sampling trawl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219352818U (en) |
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2023
- 2023-01-05 CN CN202320065938.6U patent/CN219352818U/en active Active
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