Marine organism intercepting and capturing bag net expanding device

By designing a marine organism interception and capture device with a deployment and retrieval mechanism, counterweights, and connecting rods, the problem of long-term obstruction of water flow by the open gillnet was solved, achieving normal water flow and efficient marine organism interception, and providing additional barrier functions.

CN122013729APending Publication Date: 2026-05-12SHANG HAI YINAI NEW MATERIAL TECH LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANG HAI YINAI NEW MATERIAL TECH LTD
Filing Date
2025-12-31
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing marine life interception and capture nets with sacs, when left open for extended periods, obstruct water flow and disrupt the normal flow of water in the area.

Method used

The system employs a winding and unwinding mechanism to wind up or unwind the tension net. Combined with the design of counterweights and connecting rods, it ensures that the net can be stored away when not in use, reducing its impact on water flow. The system also utilizes a power mechanism and a winding adjustment mechanism to enable flexible deployment and storage of the net.

Benefits of technology

It effectively reduces the impact of gillnets on water flow, improves the efficiency of marine life interception and capture, reduces interference with vessels, and provides additional barrier functions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a marine organism intercepting and capturing bag opening net device, and relates to the field of water area protection equipment.The marine organism intercepting and capturing bag opening net device comprises two pier columns, a bag opening net is arranged between the two pier columns, a folding and unfolding mechanism is arranged between the two pier columns, the bag opening net is folded and unfolded on the folding and unfolding mechanism, and the folding and unfolding mechanism comprises a mounting frame and a winding roller; the mounting frame is erected between the two pier columns at the position close to the tops of the pier columns, the wind-up roller is rotationally arranged on the mounting frame, one end of the bag opening net is fixedly arranged on the wind-up roller, and the wind-up roller rotates to drive the bag opening net to be stored or unfolded.
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Description

Technical Field

[0001] This application relates to the field of water protection equipment, and in particular to a captive net device for intercepting and capturing marine organisms. Background Technology

[0002] Marine life interception and capture technology is mainly used to prevent marine life from entering specific areas (such as the water intake of a nuclear power plant) or to reduce accidental injury during fishing. Its core objective is to meet human needs while protecting the marine ecosystem.

[0003] A Chinese invention patent with publication number CN117385826A discloses a captive net device for intercepting and capturing marine organisms at a nuclear power plant intake. The device includes a pair of pillars fixed to the left and right sides of the intake, and a captive net for intercepting marine organisms, fixedly connected to the two pillars. The captive net has at least one bag-shaped net cell with a forward-facing opening. The net cell has a rearward-extending net pocket. The captive net also has an upper planar net section integrally connected to the upper edge of the net opening of the net cell, vertically arranged above the net cell for intercepting marine organisms. Two pillars are fixedly connected to the left and right sides of the upper planar net section. The net opening of the net cell is below the highest water level, while the upper line of the upper planar net section is above the highest water level. Existing captive nets are constantly in an open state, which obstructs some water flow and affects the normal flow of water in the entire area. Summary of the Invention

[0004] In order to reduce the impact of sac-like gillnets on water flow, this application provides a device for intercepting and capturing marine organisms using sac-like gillnets.

[0005] The marine organism interception and capture device with a captive net provided in this application adopts the following technical solution: A marine organism interception and capture device with a captive net includes two pillars, with a captive net disposed between the two pillars and a take-up and deployment mechanism disposed between the two pillars. The captive net is taken up and deployed on the take-up and deployment mechanism. The take-up and deployment mechanism includes a mounting frame and a take-up roller. The mounting frame is erected between the two pillars near the top of the pillars. The take-up roller is rotatably mounted on the mounting frame. One end of the captive net is fixed to the take-up roller. The rotation of the take-up roller drives the captive net to be taken up or deployed.

[0006] By adopting the above technical solution, the swirling mechanism can be used to reel in or unwind the swirling net, allowing it to be reeled in when it is not necessary to capture marine life, thereby reducing the impact of the swirling net on the water flow.

[0007] Preferably, a counterweight is fixed at the end of the tensioned net away from the take-up roller.

[0008] By adopting the above technical solution, the setting of the counterweight block enables the unwound captive net to sink quickly, reducing the probability of poor work efficiency when the captive net sinks too slowly after unwound, which is necessary to intercept and capture marine life.

[0009] Preferably, a connecting rod is fixed at the bottom of the pier column, and the two ends of the connecting rod are respectively fixed between the two pier columns. The connecting rod has a hole, and the hole corresponds to the counterweight. The counterweight falls and is inserted into the hole. A fixing mechanism is provided between the counterweight and the hole to prevent the counterweight from detaching.

[0010] By adopting the above technical solution, the setting of the connecting rod can reduce the probability of the two piers shifting position, and can also be used to open the insertion hole to cooperate with the counterweight block to fix the tension net.

[0011] Preferably, the fixing mechanism includes a fixing groove, a fixing block, and a fixing slot. The fixing groove is formed on the side wall of the insertion hole, the fixing block is slidably disposed in the fixing groove, and the fixing slot is formed on the side wall of the counterweight block corresponding to the fixing block. The fixing block is inserted into or detached from the fixing slot by sliding.

[0012] By adopting the above technical solution, the counterweight can be fixed to the connecting rod by a fixing mechanism, which can reduce the probability of the tensioned net detaching from the connecting rod under force.

[0013] Preferably, the fixed block is provided with a driving component, which includes a driving rod and a driving spring. The driving rod is slidably disposed in the connecting rod, with one end of the driving rod passing through the connecting rod. The driving spring is disposed in the fixed groove, with one end of the driving spring connected to the bottom of the fixed groove and the other end fixedly connected to the fixed block. The elastic force of the driving spring drives the fixed block to slide and be housed in the fixed groove.

[0014] By adopting the above technical solution, the driving component can be set up to facilitate the sliding of the fixed block, thereby achieving the fixation of the counterweight block.

[0015] Preferably, the mounting bracket is slidably mounted on the pier column.

[0016] By adopting the above technical solution, the sliding installation frame can be set below the water surface without the use of a gillnet, thereby reducing the impact of the installation frame on passing vessels in the water.

[0017] Preferably, a power mechanism is slidably installed inside the pier column. The power mechanism includes a power rod and a power spring. One end of the power rod has a wedge-shaped surface, which abuts against the end of the drive rod extending out of the connecting rod. The power spring is disposed between the power rod and the pier column. The power spring drives the power rod to slide in the direction of the drive rod, causing the drive rod to slide inward toward the connecting rod. The elastic force of the power spring is greater than the elastic force of the drive spring. A linkage rod is fixed at the end of the power rod away from the drive rod, and the linkage rod slides near the top of the pier column.

[0018] By adopting the above technical solution, the power mechanism can be driven by lifting the mounting frame when the tension net needs to be detached from the connecting rod.

[0019] Preferably, a baffle is hinged to the pier column, and the baffle is located below the linkage rod.

[0020] By adopting the above technical solution, the baffle can reduce the probability that the linkage rod will be triggered due to excessive sliding speed during the sliding process of the mounting bracket.

[0021] Preferably, a winding adjustment mechanism is provided between the pier and the mounting frame. The winding adjustment mechanism includes an adjustment shaft, an adjustment motor, an active adjustment bevel gear, a driven adjustment bevel gear, an adjustment gear, and an adjustment rack. The adjustment shaft is rotatably mounted on the mounting frame and slidably inserted into one end of the winding roller. The adjustment shaft rotates relative to or synchronously with the winding roller through sliding. The adjustment motor is mounted on the mounting frame. The active adjustment bevel gear is mounted on the rotating shaft of the adjustment motor. The driven adjustment bevel gear is mounted on the adjustment shaft and meshes with the active adjustment bevel gear. The adjustment gear is fixed at the end of the adjustment shaft away from the winding roller. The adjustment rack is mounted on the pier and meshes with the adjustment gear.

[0022] By adopting the above technical solution, the winding adjustment mechanism can drive the winding roller to rotate by adjusting the motor to unwind or wind up the tensioned netting, while simultaneously driving the mounting frame to slide on the pier.

[0023] Preferably, the winding adjustment mechanism further includes a winding shaft, a winding motor, a driving winding bevel gear, and a driven winding bevel gear. The winding shaft is rotatably mounted on the mounting frame and is slidably inserted into the end of the winding roller away from the adjustment shaft. The winding shaft rotates relative to the winding roller or rotates synchronously with the winding roller through sliding. The winding motor is mounted on the mounting frame, the driving winding bevel gear is mounted on the rotating shaft of the winding motor, and the driven winding bevel gear is mounted on the winding shaft. The driven winding bevel gear and the driving winding bevel gear mesh with each other.

[0024] By adopting the above technical solution, the winding motor can drive the rotation of the winding roller when winding or unwinding a tensioned net and when the sliding mounting frame is required, thereby facilitating the winding or unwinding of the tensioned net.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The haul-in or unhaul-out mechanism of the sluice net allows for hauling in when it is not necessary to capture marine life, thereby reducing the impact of the sluice net on the water flow. 2. The use of counterweights allows the unwound captive net to sink quickly, reducing the probability of slow sinking after unwound captive netting, which would lead to poor work efficiency when intercepting and capturing marine life. 3. The connecting rod can reduce the probability of the two piers shifting in position, and it is also used to make holes to fix the tension net with counterweights. 4. The sliding mounting frame can be set below the water surface when the gillnet is not in use, thereby reducing the impact of the mounting frame on passing vessels in the water. At the same time, the mounting frame can be raised to a position above the water surface and used as a railing. 5. The winding adjustment mechanism can drive the winding roller to rotate by adjusting the motor to unwind or wind up the tensioned netting while simultaneously driving the mounting frame to slide on the pier; the winding motor can also drive the winding roller to rotate when winding or unwinding the tensioned netting and when the mounting frame needs to slide, thus facilitating the winding or unwinding of the tensioned netting. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a partial cross-sectional view of the overall structure of an embodiment of this application; Figure 3 This is a cross-sectional view of the connecting rod in an embodiment of this application; Figure 4 for Figure 3 Enlarged view of section A in the middle; Figure 5 for Figure 2 Enlarged view of section B in the middle; Figure 6 for Figure 2 Enlarged view of section C; Reference numerals: 1. Pier; 2. Tensioned netting with pleats; 3. Winding mechanism; 31. Mounting frame; 32. Winding roller; 4. Counterweight; 5. Connecting rod; 6. Insertion hole; 7. Fixing mechanism; 71. Fixing groove; 72. Fixing block; 73. Fixing slot; 8. Driving component; 81. Driving rod; 82. Driving spring; 9. Power mechanism; 91. Power rod; 82. Power spring; 10. Linkage rod; 11. Baffle; 12. Winding adjustment mechanism; 121. Adjusting shaft; 122. Adjusting motor; 123. Active adjusting bevel gear; 124. Driven adjusting bevel gear; 125. Adjusting gear; 126. Adjusting rack; 127. Winding shaft; 128. Winding motor; 129. Active winding bevel gear; 1210. Driven winding bevel gear. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0028] This application discloses a captive net device for intercepting and capturing marine organisms, referring to... Figure 1 and Figure 2 The system includes two vertically inserted and fixed piers 1, with a net 2 positioned between them. A retraction mechanism 3 is also located between the two piers 1, allowing the net 2 to be stored or unfolded. The retraction mechanism 3 includes a mounting frame 31 and a winding roller 32. The mounting frame 31 is positioned between the two piers 1 near the top of the piers 1, and the winding roller 32 is rotatably mounted on the mounting frame 31. One end of the net 2 is fixed to the winding roller. On roller 32, the rotation of the winding roller 32 drives the pocketed net 2 to be wound or unwound. When the pocketed net 2 is wound, it is wrapped around the winding roller 32. When the pocketed net 2 is unwound, it is laid between the two piers 1 to intercept and capture marine life. The pocketed net 2 is wound or unwound by the winding and unwinding mechanism 3. When it is not necessary to connect and capture marine life, the pocketed net 2 is wound up, thereby reducing the impact of the pocketed net 2 on the water flow.

[0029] Reference Figure 1 , Figure 3 and Figure 4A counterweight 4 is fixed at one end of the pleated net 2 away from the winding roller 32. In this embodiment, three counterweights 4 are provided, evenly distributed along the width of the pleated net 2. Two of them are distributed at both ends of the width direction of the pleated net 2, and the other is fixed in the middle of the width direction of the pleated net 2. The setting of the counterweight 4 enables the pleated net 2 to sink quickly after unwinding, reducing the probability of poor work efficiency when the pleated net 2 sinks too slowly after unwinding and needs to intercept and capture marine life. A connecting rod 5 is fixed at the bottom of the pier 1. The two ends of the connecting rod 5 are respectively fixed between the two piers 1. The connecting rod 5 has a hole 6, which corresponds to the counterweight 4. In this embodiment, three holes 6 are provided. The counterweight 4 falls and inserts into the hole 6. A fixing mechanism 7 is provided between the counterweight 4 and the hole 6. The fixing mechanism 7 restricts the counterweight 4 from detaching. The setting of the connecting rod 5 On the one hand, this arrangement reduces the probability of the two piers 1 shifting position; on the other hand, it is used to open the insertion hole 6 to cooperate with the counterweight block 4 to fix the tension net 2. The fixing mechanism 7 includes a fixing groove 71, a fixing block 72, and a fixing slot 73. The fixing groove 71 is opened on the side wall of the insertion hole 6, the fixing block 72 is slidably set in the fixing groove 71, and the fixing slot 73 is opened on the side wall of the counterweight block 4 corresponding to the fixing block 72. The fixing block 72 slides into or out of the fixing slot 73. By fixing the counterweight block 4 to the connecting rod 5 through the fixing mechanism 7, the probability of the tension net 2 being dislodged from the connecting rod 5 under force can be reduced. In this embodiment, two sets of fixing mechanisms 7 are provided between each counterweight block 4 and the insertion hole 6. The two sets of fixing mechanisms 7 are respectively set on the side wall of the insertion hole 6 along the length direction of the connecting rod 5. The two sets of fixing mechanisms 7 can make the fixing effect more stable when fixing.

[0030] Reference Figure 1 A driving component 8 is provided on the fixed block 72. The driving component 8 includes a driving rod 81 and a driving spring 82. The driving rod 81 is slidably disposed in the connecting rod 5, with one end of the driving rod 81 passing through the connecting rod 5. The driving spring 82 is disposed in the fixed slide groove 71, with one end of the driving spring 82 connected to the bottom of the fixed slide groove 71 and the other end fixedly connected to the fixed block 72. The elastic force of the driving spring 82 drives the fixed block 72 to slide and be housed in the fixed slide groove 71. The setting of the driving component 8 can facilitate the sliding of the fixed block 72, thereby realizing the fixation of the counterweight block 4.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The mounting frame 31 is slidably mounted on the pier 1. This slidable mounting frame 31 can be positioned below the water surface when the girder net 2 is not in use, thereby reducing the impact of the mounting frame 31 on passing vessels in the waterway. A power mechanism 9 is slidably mounted inside the pier 1. The power mechanism 9 includes a power rod 91 and a power spring 82. One end of the power rod 91 has a wedge-shaped surface that abuts against the end of the drive rod 81 extending from the connecting rod 5. The power spring 82 is positioned between the power rod 91 and the pier 1. The power spring 82 drives the power rod 91 to slide towards the drive rod 81, causing the drive rod 81 to slide inwards towards the connecting rod 5. The spring 82's elasticity... The force is greater than the elastic force of the drive spring 82. The end of the power rod 91 away from the drive rod 81 is fixed with a linkage rod 10. The linkage rod 10 slides near the top of the pier column 1. The setting of the power mechanism 9 can be achieved by lifting the mounting frame 31 to drive the power mechanism 9 when the tension net 2 needs to be separated from the connecting rod 5. A baffle 11 is hinged on the pier column 1. The baffle 11 is located below the linkage rod 10. A torsion spring is set at the hinge of the baffle 11 and the pier column 1. The torsion spring drives the baffle 11 to be horizontally set inside the pier column 1 under normal conditions to block the sliding of the mounting frame 31. The setting of the baffle 11 can reduce the probability that the mounting frame 31 will trigger the linkage rod 10 due to excessive sliding during the sliding process.

[0032] Reference Figure 2 , Figure 5 and Figure 6A winding adjustment mechanism 12 is provided between the pier 1 and the mounting frame 31. The winding adjustment mechanism 12 includes an adjustment shaft 121, an adjustment motor 122, an active adjustment bevel gear 123, a driven adjustment bevel gear 124, an adjustment gear 125, and an adjustment rack 126. The adjustment shaft 121 is rotatably mounted on the mounting frame 31 and slides into one end of the winding roller 32. The adjustment shaft 121 rotates relative to the winding roller 32 or rotates synchronously with the winding roller 32 through sliding. The adjustment shaft 121 is divided into a cylindrical part and a polygonal part. A polygonal hole is opened on the winding roller 32 corresponding to the adjustment shaft 121. When the polygonal part is inserted into the polygonal hole, the adjustment shaft 121 rotates, driving the winding roller 32 to rotate synchronously. When the edge portion disengages from the polygonal hole, the adjusting shaft 121 and the take-up roller 32 rotate relative to each other. The adjusting motor 122 is mounted on the mounting bracket 31. The active adjusting bevel gear 123 is mounted on the rotating shaft of the adjusting motor 122, and the driven adjusting bevel gear 124 is mounted on the adjusting shaft 121. The driven adjusting bevel gear 124 meshes with the active adjusting bevel gear 123. The adjusting gear 125 is fixed to the end of the adjusting shaft 121 away from the take-up roller 32. The adjusting rack 126 is mounted on the support column 1, and the adjusting rack 126 meshes with the adjusting gear 125. The take-up adjusting mechanism 12 is configured to drive the take-up roller 32 to rotate via the adjusting motor 122, thereby simultaneously driving the mounting bracket 32 ​​to unwind or rewind the tensioned net 2. The frame 31 slides on the pier 1; the winding adjustment mechanism 12 also includes a winding shaft 127, a winding motor 128, a driving winding bevel gear 129, and a driven winding bevel gear 1210. The winding shaft 127 is rotatably mounted on the mounting frame 31 and is slidably inserted into the end of the winding roller 32 away from the adjustment shaft 121. The winding shaft 127 rotates relative to the winding roller 32 or rotates synchronously with the winding roller 32 by sliding. In this embodiment, the winding shaft 127 is divided into a cylindrical part and a polygonal part. A polygonal hole is opened on the winding roller 32 corresponding to the winding shaft 127. When the polygonal part is inserted into the polygonal hole, the winding shaft 127 rotates and drives the winding roller 32 to rotate synchronously. When the polygonal part is disengaged from the polygonal hole, the winding shaft 127 rotates. The winding shaft 127 and the take-up roller 32 are rotatably arranged relative to each other. The take-up motor 128 is mounted on the mounting frame 31. The driving take-up bevel gear 129 is mounted on the rotating shaft of the take-up motor 128, and the driven take-up bevel gear 1210 is mounted on the take-up shaft 127. The driven take-up bevel gear 1210 meshes with the driving take-up bevel gear 129. The take-up motor 128 can drive the rotation of the take-up roller 32 when the tensioned net 2 is being wound or unwound and the mounting frame 31 needs to be slid, thereby facilitating the winding or unwinding of the tensioned net 2. In this embodiment, both the take-up shaft 127 and the adjusting shaft 121 can be driven by an electric cylinder. At the same time, the adjusting motor 122 and the take-up motor 128 can also be driven by an electric cylinder to slide on the mounting frame 31.

[0033] The implementation principle of this application embodiment is as follows: After connecting two piers 1 to each other through connecting rods 5, the piers 1 are vertically installed in the water area. After installation, the top of the piers 1 is 50cm above the water surface. Then, the mounting frame 31 is installed between the two piers 1. When the gabion net 2 is not in use, it can be wound and rolled up on the winding rod. By sliding the mounting frame 31 to the bottom of the pier 1, the counterweight 4 is inserted into the insertion hole 6, thereby reducing the impact of the mounting frame 31 on passing ships. Alternatively, the gabion net 2 can be wound and rolled up on the winding rod, and the mounting frame 31 can be installed... The frame 31 slides to a position above the water surface, so that the frame 31 acts as a railing to restrict ships from entering the corresponding sea area; when the frame 31 is at the bottom of the pier 1 and the net 2 is to be deployed, the frame 31 is driven to slide by the adjusting motor 122 and the net 2 is unwound at the same time, so that the net 2 is deployed and intercepted between the two piers 1; when the frame 31 is above the water surface and the net 2 is to be deployed, the winding motor 128 drives the winding roller 32 to rotate and unwound the net 2, so that the net 2 is deployed and intercepted between the two piers 1.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A marine organism interception and capture net device with a captive mesh, comprising two support posts (1), wherein a captive mesh (2) is disposed between the two support posts (1), characterized in that: A retractable mechanism (3) is provided between the two piers (1). The pleated net (2) is retracted and unfolded on the retractable mechanism (3). The retractable mechanism (3) includes a mounting frame (31) and a winding roller (32). The mounting frame (31) is erected between the two piers (1) near the top of the pier (1). The winding roller (32) is rotatably mounted on the mounting frame (31). One end of the pleated net (2) is fixed on the winding roller (32). The winding roller (32) rotates to drive the pleated net (2) to be retracted or unfolded. The mounting frame (31) is slidably mounted on the pier (1).

2. The marine organism interception and capture net device according to claim 1, characterized in that: A counterweight (4) is fixed at the end of the tensioned net (2) away from the take-up roller (32).

3. The marine organism interception and capture net device according to claim 2, characterized in that: A connecting rod (5) is fixed at the bottom of the pier (1). The two ends of the connecting rod (5) are respectively fixed between the two piers (1). An insertion hole (6) is opened on the connecting rod (5). The insertion hole (6) is opened corresponding to the counterweight (4). The counterweight (4) falls and is inserted into the insertion hole (6). A fixing mechanism (7) is provided between the counterweight (4) and the insertion hole (6). The fixing mechanism (7) restricts the counterweight (4) from detaching.

4. A marine organism interception and capture net device according to claim 3, characterized in that: The fixing mechanism (7) includes a fixing slide (71), a fixing block (72) and a fixing slot (73). The fixing slide (71) is opened on the side wall of the insertion hole (6). The fixing block (72) is slidably disposed in the fixing slide (71). The fixing slot (73) is opened on the side wall of the counterweight block (4) corresponding to the fixing block (72). The fixing block (72) is inserted into or removed from the fixing slot (73) by sliding.

5. A marine organism interception and capture net device according to claim 4, characterized in that: The fixed block (72) is provided with a driving component (8), which includes a driving rod (81) and a driving spring (82). The driving rod (81) is slidably disposed in the connecting rod (5), with one end of the driving rod (81) passing through the connecting rod (5). The driving spring (82) is disposed in the fixed groove (71), with one end of the driving spring (82) connected to the bottom of the fixed groove (71) and the other end fixedly connected to the fixed block (72). The elastic force of the driving spring (82) drives the fixed block (72) to slide and be housed in the fixed groove (71).

6. A marine organism interception and capture net device according to claim 5, characterized in that: A power mechanism (9) is slidably installed inside the pier (1). The power mechanism (9) includes a power rod (91) and a power spring (82). One end of the power rod (91) is provided with a wedge-shaped surface. The wedge-shaped surface abuts against one end of the drive rod (81) extending out of the connecting rod (5). The power spring (82) is located between the power rod (91) and the pier (1). The power spring (82) drives the power rod (91) to slide towards the drive rod (81), causing the drive rod (81) to slide towards the connecting rod (5). The elastic force of the power spring (82) is greater than that of the drive spring (82). A linkage rod (10) is fixed at the end of the power rod (91) away from the drive rod (81). The linkage rod (10) slides near the top of the pier (1).

7. A marine organism interception and capture net device according to claim 6, characterized in that: A baffle (11) is hinged to the pier (1), and the baffle (11) is located below the linkage rod (10).

8. A marine organism interception and capture net device according to claim 7, characterized in that: A winding adjustment mechanism (12) is provided between the pier (1) and the mounting frame (31). The winding adjustment mechanism (12) includes an adjustment shaft (121), an adjustment motor (122), an active adjustment bevel gear (123), a driven adjustment bevel gear (124), an adjustment gear (125), and an adjustment rack (126). The adjustment shaft (121) is rotatably mounted on the mounting frame (31). The adjustment shaft (121) is slidably inserted into one end of the winding roller (32). The adjustment shaft (121) rotates relative to the winding roller (32) or moves with the winding roller (32) through sliding. The adjustment motor (122) is mounted on the mounting bracket (31), the active adjustment bevel gear (123) is mounted on the rotating shaft of the adjustment motor (122), the driven adjustment bevel gear (124) is mounted on the adjustment shaft (121), the driven adjustment bevel gear (124) meshes with the active adjustment bevel gear (123), the adjustment gear (125) is fixed on the end of the adjustment shaft (121) away from the take-up roller (32), and the adjustment rack (126) is mounted on the support column (1), the adjustment rack (126) meshes with the adjustment gear (125).

9. A marine organism interception and capture net device according to claim 8, characterized in that: The winding adjustment mechanism (12) further includes a winding shaft (127), a winding motor (128), an active winding bevel gear (129), and a driven winding bevel gear (1210). The winding shaft (127) is rotatably mounted on the mounting frame (31). The winding shaft (127) is slidably inserted into the end of the winding roller (32) away from the adjustment shaft (121). The winding shaft (127) rotates with the winding roller (32) or rotates synchronously with the winding roller (32) by sliding. The winding motor (128) is mounted on the mounting frame (31). The active winding bevel gear (129) is mounted on the rotating shaft of the winding motor (128). The driven winding bevel gear (1210) is mounted on the winding shaft (127). The driven winding bevel gear (1210) meshes with the active winding bevel gear (129).

10. A marine organism interception and capture net device according to claim 9, characterized in that: The adjusting shaft (121) is divided into a cylindrical part and a polygonal part, and the winding roller (32) has a polygonal hole corresponding to the adjusting shaft (121).