Deep-sea macrobenthos trapping and pressure-maintaining sampling device

Abstract

The application discloses a deep-sea macroorganism trapping and pressure-maintaining sampling device and relates to the technical field of deep-sea macroorganism trapping. The device comprises a trapping barrel, a pressure-maintaining bin is arranged in the trapping barrel, and a plurality of partition plates are arranged in the pressure-maintaining bin. A fish trapping barrel is arranged in the trapping barrel, a driving motor is arranged above the trapping barrel, the driving motor drives the fish trapping barrel to rotate, a one-way valve is arranged on the trapping barrel, the one-way valve is one-way conducted in deep sea, a base is arranged on the lower side of the trapping barrel, a linkage structure is arranged in the base, and the linkage structure facilitates oxygenation and cleaning treatment of the pressure-maintaining bin. Through the linkage structure, the cleaning and water exchange of the pressure-maintaining bin can be simultaneously completed without additional power after the core functions of sample trapping and transferring are completed, so that the integration and energy utilization efficiency of the device are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of deep-sea macroorganism trapping technology, specifically to a deep-sea macroorganism trapping and pressure-holding sampling device. Background Technology

[0002] Deep-sea macroorganisms, such as certain fish and cephalopods, are important samples for studying deep-sea ecosystems. Obtaining surviving macroorganism samples that maintain the original pressure environment of the deep sea is of great value to scientific research. However, during the temporary storage of samples in a pressure chamber, the water inside the chamber cannot be renewed, leading to a rapid decline in dissolved oxygen levels. At the same time, the accumulation of biological excrement deteriorates the living environment, resulting in a low survival rate of the samples. Furthermore, the lack of integrated automatic cleaning functions means that the dirt on the chamber walls and bottom must be recovered and manually cleaned, which is time-consuming, labor-intensive, and affects subsequent use.

[0003] Therefore, a deep-sea macroorganism trapping and pressure-holding sampling device is provided to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this invention is to provide a deep-sea macroorganism trapping and pressure-holding sampling device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A deep-sea macroorganism trapping and pressure-holding sampling device includes a trapping barrel with a pressure-holding chamber inside, and multiple partitions inside the pressure-holding chamber. A fishing bucket is installed inside the trapping barrel, and a drive motor is installed above the trapping barrel to drive the fishing bucket to rotate. A one-way valve is installed on the trapping barrel, which is open unidirectionally in the deep sea. A base is installed on the lower side of the trapping barrel, and a linkage structure is installed inside the base. The linkage structure facilitates oxygenation and cleaning of the pressure-holding chamber.

[0006] As a further embodiment of the present invention: the inside of the fishing barrel is provided with a fishing chamber, the top of the fishing chamber is equipped with bait, a servo motor is installed inside the fishing chamber, and a net is installed at the output end driven by the servo motor.

[0007] As a further embodiment of the present invention: wherein, a plurality of the one-way valves are in communication with the pressure-holding chamber, a first sealing plug and a second sealing plug are installed inside the one-way valve, a fixed seat is fixedly connected to the inner wall of the one-way valve, and the fixed seat is fitted with the first sealing plug by means of a return spring.

[0008] As a further embodiment of the present invention: wherein, a second sealing plug is fixedly connected to the lower side of the first sealing plug, the second sealing plug is in contact with the bottom of the fixing seat, and the second sealing plug is in contact with the mounting bracket installed inside the one-way valve through a fixing spring.

[0009] As a further embodiment of the present invention: the linkage structure includes a rotating disk, on which a disc is mounted; a guide ring is provided on the outer side of the rotating disk; a connecting rod is slidably connected inside the guide ring; the other end of the connecting rod is rotatably connected to the center of the disc; multiple hinge rods are mounted on the disc; a transmission rod is hinged to one end of each hinge rod; multiple working boxes are mounted on the base; a movable plug is slidably connected inside each working box; the transmission rod drives the movable plug to move; a one-way drain pipe is installed on one side of each working box; a drain port is installed on the pressure holding chamber; and the drain port is connected to the working box via a flexible hose.

[0010] As a further embodiment of the present invention: wherein the rotating disk is rotatably connected to the bottom side of the base, and the fishing bucket drives the rotating disk to rotate.

[0011] As a further embodiment of the present invention: one end of the movable plug is also fixedly connected to a slide rod, the slide rod passes through the working box and is fixedly connected to a toothed plate, a gear is meshed on one side of the toothed plate, the gear is rotatably connected to the base, a rotating rod is fixedly connected to the gear, the rotating rod passes through the pressure holding chamber and is fixedly connected to a scraper rod, and the scraper rod is in contact with the bottom wall of the pressure holding chamber.

[0012] As a further embodiment of the present invention: a fixed barrel is installed inside the working box, a rotating wheel is installed inside the fixed barrel, a straight rod is installed on the rotating wheel, the straight rod passes through the pressure holding chamber and is fixedly connected to a reciprocating screw, a scraper is spirally connected to the reciprocating screw, and the scraper is in contact with the inner wall of the pressure holding chamber.

[0013] As a further embodiment of the present invention: an accumulator is installed on the pressure holding chamber, and a solenoid valve is installed on the drain one-way pipe, wherein the solenoid valve is connected in series with the accumulator.

[0014] Compared with the prior art, the beneficial effects of the present invention are: With a linkage structure, in addition to completing the core functions of sample trapping and transfer, the cleaning of the pressure chamber and water exchange can be completed simultaneously without additional power, which greatly improves the integration and energy efficiency of the device. Through a mechanical automatic water exchange system, while the linkage structure continuously replenishes oxygen-rich seawater to the macroorganisms in the pressure-holding chamber, it also automatically removes excrement and debris using scraper rods and scrapers, providing the samples with a clean, oxygen-rich, and pressure-stable temporary living environment, which significantly improves the survival rate and quality of the samples. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fishing bucket structure in this invention; Figure 3 This is a schematic diagram of the pressure chamber structure in this invention; Figure 4 This is a schematic diagram of the internal structure of the working box in this invention; Figure 5 This is a schematic diagram of the internal structure of the base in this invention; Figure 6 This is a schematic diagram showing the disassembled structure of the fishing bucket in this invention; Figure 7 This is a schematic diagram of the barrier structure in this invention; Figure 8 This is a cross-sectional schematic diagram of the one-way valve structure in this invention.

[0016] The correspondence between the labels and component names in the attached figures is as follows: 1. Trapping bucket; 101. Partition plate; 102. Pressure holding chamber; 2. Base; 3. Drive motor; 4. Fishing bucket; 401. Fishing chamber; 402. Net; 403. Bait; 5. One-way valve; 501. First sealing plug; 502. Fixed seat; 503. Return spring; 504. Second sealing plug; 505. Fixed spring; 6. Linkage structure; 601. Rotating disk; 602. Disc; 603. Connecting rod; 604. Hinge rod; 605. Working box; 606. Transmission rod; 607. Toothed plate; 608. Gear; 609. Movable plug; 610. Fixed bucket; 611. Rotating wheel; 612. Drainage one-way pipe; 613. Reciprocating screw; 614. Drainage port; 615. Scraper rod; 616. Rotating rod; 617. Scraper; 618. Guide ring. Detailed Implementation

[0017] Please see Figures 1-8 A deep-sea macroorganism trapping and pressure-holding sampling device includes a trapping bucket 1, an internal pressure-holding chamber 102, and multiple partitions 101 inside the pressure-holding chamber 102. A fishing bucket 4 is installed inside the trapping bucket 1, and a drive motor 3 is installed above the trapping bucket 1 to drive the fishing bucket 4 to rotate. A one-way valve 5 is installed on the trapping bucket 1, which allows one-way flow in the deep sea. A base 2 is installed on the lower side of the trapping bucket 1, and a linkage structure 6 is installed inside the base 2. The linkage structure 6 facilitates oxygenation and cleaning of the pressure-holding chamber 102. The pressure-holding chamber 102 is divided into several independent sample chambers by multiple partitions 101 to achieve multiple captures or sample classification and avoid interference between organisms.

[0018] Specifically, the trapping barrel 1 is deployed in the deep sea, the drive motor 3 is started, which drives the fishing barrel 4 to rotate. The organisms are trapped into the fishing barrel 4 and eventually fall into the pressure chamber 102. During the descent and operation, the one-way valve 5 allows seawater to enter the pressure chamber 102. When the drive motor 3 drives the linkage structure 6 to be triggered, the pressure chamber 102 is cleaned and oxygenated. The pressure chamber 102 is set up to capture organisms and maintain their deep-sea pressure environment (pressure maintenance) to prevent the organisms from dying due to drastic pressure changes.

[0019] like Figure 6 and Figure 7 As shown, the fishing barrel 4 has a fishing chamber 401 inside. The top of the fishing chamber 401 is equipped with bait 403. A servo motor is installed inside the fishing chamber 401. A barrier net 402 is installed at the output end of the servo motor. The bait 403 can be luminescent and sways with the ocean current, attracting macroorganisms (such as fish) to swim into the fishing chamber 401. When the bait 403 attracts macroorganisms into the fishing chamber 401, a sensor (such as an infrared sensor) or a timer triggers a signal to the central controller. The controller then starts the servo motor. When the sensor or timer determines that the organism has entered, the servo motor rotates, and the barrier net 402 rotates, blocking the entrance of the fishing chamber 401 and preventing the fish from escaping.

[0020] Furthermore, after the fishing barrel 4 completes its trapping process, its drive motor 3 (which uses a precisely positioned servo motor) will rotate the fishing barrel 4, so that the outlet of the fishing chamber 401 is precisely aligned with the entrance of any pressure chamber 102. Subsequently, the barrier net 402 at the bottom of the fishing chamber 401 opens, successfully driving the macroorganisms into the pressure chamber 102. After the transfer is completed, the fishing barrel 4 immediately returns to its initial position, ready for the next operation. The entire process is automatically coordinated by the central controller, ensuring the reliability of sample transfer and the continuity of pressure.

[0021] like Figure 8As shown, multiple one-way valves 5 are interconnected in a pressure-holding chamber 102. A first sealing plug 501 and a second sealing plug 504 are installed inside each one-way valve 5. A fixed seat 502 is fixedly connected to the inner wall of the one-way valve 5. The first sealing plug 501 is mounted on the fixed seat 502 via a return spring 503. A second sealing plug 504 is fixedly connected to the lower side of the first sealing plug 501. The second sealing plug 504 is in contact with the bottom of the fixed seat 502. The second sealing plug 504 is in contact with a mounting bracket installed inside the one-way valve 5 via a fixing spring 505. When the device sinks, the external water pressure increases, and the high-pressure seawater overcomes the resistance of the return spring 503 and the fixing spring 505. The elastic force sequentially pushes open the first sealing plug 501 and the second sealing plug 504, allowing seawater to rush into the pressure-holding chamber 102. When the pressure inside and outside the chamber is balanced or the device floats, the external pressure decreases. Under the action of the return spring 503 and the fixing spring 505, the second sealing plug 504 and the first sealing plug 501 are sequentially reset and tightly fitted onto the valve seat, preventing the high-pressure seawater inside the pressure-holding chamber from leaking out. This device has a double sealing plug structure, which greatly enhances the sealing reliability and prevents pressure leakage during the recovery process. Moreover, the entire process does not require electrical control and is completed automatically entirely by relying on the mechanical structure and environmental pressure difference, ensuring the automation and high reliability of the pressure-holding process.

[0022] like Figure 3 and Figure 5As shown, the linkage structure 6 includes a rotating disk 601, on which a disc 602 is mounted. A guide ring 618 is provided on the outer side of the rotating disk 601, and a connecting rod 603 is slidably connected inside the guide ring 618. The other end of the connecting rod 603 is rotatably connected to the middle of the disc 602. Multiple hinge rods 604 are mounted on the disc 602, and a transmission rod 606 is hinged to one end of each hinge rod 604. Multiple working boxes 605 are mounted on the base 2, and a movable plug 609 is slidably connected inside each working box 605. The transmission rod 606 drives the movable plug 609 to move. A drain one-way pipe 612 is installed on one side of each working box 605, and a drain port 614 is installed on the pressure holding chamber 102. The drain port 614 is connected to the working box 605 through a hose. The rotating disk 601 is rotatably connected to the bottom side of the base 2, and the fishing bucket 4 drives the rotating disk. 601 rotates; the fishing bucket 4 rotates under the drive of the drive motor 3. The rotation of the fishing bucket 4 drives the rotating disk 601 below to rotate synchronously. The rotating disk 601, through the cooperation of the connecting rod 603 and the guide ring 618, converts its own rotational motion into the eccentric reciprocating motion of the disc 602. The reciprocating motion of the disc 602 is transmitted to the movable plugs 609 in multiple working boxes 605 through the hinge rod 604 and the transmission rod 606, so that the movable plugs 609 perform reciprocating piston motion, which can discharge the seawater inside the pressure tank 102. At the same time, the above structure constitutes the power source of a water pump system and a cleaning system. The reciprocating motion of the movable plugs 609 will produce a suction and discharge effect in the working box 605, which will accelerate the internal water flow of the pressure tank 102 and achieve the purpose of oxygenation, so that the fish inside the pressure tank 102 will not lack oxygen.

[0023] like Figure 2 and Figure 3 As shown, one end of the movable plug 609 is also fixedly connected to a slide rod. The slide rod passes through the working box 605 and is fixedly connected to a toothed plate 607. A gear 608 is meshed on one side of the toothed plate 607. The gear 608 is rotatably connected to the base 2. A rotating rod 616 is fixedly connected to the gear 608. The rotating rod 616 passes through the pressure holding chamber 102 and is fixedly connected to a scraper rod 615. The scraper rod 615 is in contact with the bottom wall of the pressure holding chamber 102. When the movable plug 609 is pushed by the transmission rod 606, it moves... During the reciprocating motion, the connecting slide rod and toothed plate 607 will reciprocate together. The reciprocating motion of the toothed plate 607 drives the meshing gear 608 to reciprocate. The gear 608 transmits this reciprocating rotational motion to the scraper rod 615 in the pressure chamber 102 through the rotating rod 616. The scraper rod 615 swings back and forth at the bottom of the pressure chamber 102 to scrape away the debris and biological excrement deposited at the bottom, and discharge them through the drain one-way pipe 612 to achieve the purpose of cleaning.

[0024] The working box 605 contains a fixed barrel 610, inside which a rotating wheel 611 is installed. A straight rod is mounted on the rotating wheel 611, which passes through the pressure holding chamber 102 and is fixedly connected to a reciprocating screw 613. A scraper 617 is screwed onto the reciprocating screw 613. The scraper 617 is in contact with the inner wall of the pressure holding chamber 102. The reciprocating motion of the movable plug 609 drives the fluid (water or oil) in the working box 605 to impact the rotating wheel 611 in the fixed barrel 610. The rotating wheel 611 begins to rotate (unidirectional continuous rotation). The rotating wheel 611 drives the reciprocating screw 613 in the pressure holding chamber to rotate through the straight rod. The scraper 617, which is threadedly connected to the reciprocating screw 613, converts the rotational motion of the screw into its own linear reciprocating motion. The scraper 617 moves up and down along the inner wall of the pressure holding chamber 102 to scrape and clean the side wall.

[0025] Specifically, an accumulator is installed on the pressure chamber 102, and a solenoid valve is installed on the drain one-way pipe 612. The solenoid valve is connected in series with the accumulator. The accumulator, as a pressure storage device, usually contains an air bladder and pre-filled gas. When the pressure inside the pressure chamber 102 is too high, the air bladder is compressed to store energy; when the pressure drops, the air bladder expands to release energy and replenish the pressure. It works in conjunction with the one-way valve 5 to maintain the pressure stability inside the pressure chamber and offset possible minor leaks and pressure fluctuations caused by temperature changes. When the device needs to oxygenate the organisms inside the pressure chamber 102, the solenoid valve can be opened. At this time, the linkage structure 6 will continuously draw water from the pressure chamber through the drain port 614 and discharge it to the outside of the device through the drain one-way pipe 612. This suction process forces the pressure chamber to draw in fresh, oxygen-rich deep-sea water from the external environment through the one-way valve 5, thereby achieving water exchange and oxygenation. The opening and closing of the solenoid valve on the drain one-way pipe 612 is controlled by the central controller according to the water quality sensor signal inside the chamber or a preset timing program.

[0026] Working principle: After the device is deployed, the luminescent bait 403 attracts macroorganisms into the rotating fishing barrel 4, and then the barrier net 402 closes the entrance; the drive motor 3 precisely positions the outlet of the fishing barrel 4 to align with the inlet of the pressure chamber 102, transferring the sample to the independent pressure chamber 102. When the device dives, the high pressure of the deep sea pushes open the double sealing plug of the one-way valve 5, allowing seawater to enter the pressure chamber 102; when it floats, the sealing plug automatically closes under the action of the spring, maintaining the high-pressure environment inside the chamber. When the rotation of the fishing barrel 4 drives the movable plug 609 to reciprocate through the linkage structure 6, on the one hand, it discharges the old water in the chamber and draws in the oxygen-rich seawater from outside, realizing water exchange; on the other hand, through the gear 608 and the rotating wheel 611 mechanism, it drives the scraper rod 615 and the scraper 617 inside the chamber to automatically clean the bottom and walls of the chamber, thus continuously providing a clean and oxygen-rich living environment for the sample without the need for additional power.

Claims

1. A deep-sea macroorganism trapping and pressure-holding sampling device, characterized in that, The device includes a trapping barrel (1), which has a pressure chamber (102) inside and multiple partitions (101) inside. A fishing barrel (4) is installed inside the trapping barrel (1). A drive motor (3) is installed above the trapping barrel (1) and drives the fishing barrel (4) to rotate. A one-way valve (5) is installed on the trapping barrel (1) and allows one-way flow in the deep sea. A base (2) is installed on the lower side of the trapping barrel (1) and a linkage structure (6) is installed inside the base (2). The linkage structure (6) facilitates oxygenation and cleaning of the pressure chamber (102). The linkage structure (6) includes a rotating disk (601), on which a disc (602) is mounted. A guide ring (618) is provided on the outer side of the rotating disk (601). A connecting rod (603) is slidably connected inside the guide ring (618). The other end of the connecting rod (603) is rotatably connected to the middle of the disc (602). Multiple hinge rods (604) are mounted on the disc (602). One end of each hinge rod (604) is hinged. A transmission rod (606) is connected to the base (2), and multiple working boxes (605) are installed on the base (2). A movable plug (609) is slidably connected inside the working box (605). The transmission rod (606) drives the movable plug (609) to move. A drain one-way pipe (612) is installed on one side of the working box (605). A drain port (614) is installed on the pressure holding chamber (102). The drain port (614) is connected to the working box (605) through a hose. The rotating disk (601) is rotatably connected to the bottom side of the base (2), and the fishing bucket (4) drives the rotating disk (601) to rotate; One end of the movable plug (609) is also fixedly connected to a slide rod, which passes through the working box (605) and is fixedly connected to a toothed plate (607). A gear (608) is meshed on one side of the toothed plate (607). The gear (608) is rotatably connected to the base (2). A rotating rod (616) is fixedly connected to the gear (608). The rotating rod (616) passes through the pressure chamber (102) and is fixedly connected to a scraper rod (615). The scraper rod (615) is in contact with the bottom wall of the pressure chamber (102). The working box (605) has a fixed barrel (610) installed inside. The fixed barrel (610) has a rotating wheel (611) installed inside. The rotating wheel (611) has a straight rod installed on it. The straight rod passes through the pressure holding chamber (102) and is fixedly connected to a reciprocating screw (613). The reciprocating screw (613) is spirally connected to a scraper (617). The scraper (617) is in contact with the inner wall of the pressure holding chamber (102).

2. The deep-sea macroorganism trapping and pressure-holding sampling device according to claim 1, characterized in that, The fishing bucket (4) has a fishing chamber (401) inside. The top of the fishing chamber (401) is equipped with bait (403). A servo motor is installed inside the fishing chamber (401), and a net (402) is installed at the output end driven by the servo motor.

3. The deep-sea macroorganism trapping and pressure-holding sampling device according to claim 1, characterized in that, Multiple check valves (5) are connected to the pressure chamber (102). The check valve (5) is equipped with a first sealing plug (501) and a second sealing plug (504). The inner wall of the check valve (5) is fixedly connected to a fixed seat (502). The fixed seat (502) is equipped with the first sealing plug (501) through a return spring (503).

4. The deep-sea macroorganism trapping and pressure-holding sampling device according to claim 3, characterized in that, A second sealing plug (504) is fixedly connected to the lower side of the first sealing plug (501). The second sealing plug (504) is in contact with the bottom of the fixed seat (502). The second sealing plug (504) is in contact with the mounting bracket installed inside the one-way valve (5) through the fixing spring (505).

5. The deep-sea macroorganism trapping and pressure-holding sampling device according to claim 1, characterized in that, An accumulator is installed on the pressure holding chamber (102), and a solenoid valve is installed on the drain one-way pipe (612). The solenoid valve is connected in series with the accumulator.

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