Deep-sea lamplight trapping type continuous pumping fishing device and method

Abstract

The invention discloses a deep-sea lamplight trapping type continuous pumping fishing device and method, and relates to the field of marine fishery fishing, and the deep-sea lamplight trapping type continuous pumping fishing device comprises a sonar detection system, a lamplight trapping system, a negative pressure pumping unit, a flexible conveying system and a control system which are mounted on a ship; the sonar detection system comprises a sonar detector; the lamplight trapping system comprises a plurality of fish luring lamps which are put underwater at a certain depth; the negative pressure pumping unit comprises a fish pump mounted on the ship; the flexible conveying system comprises a winch arranged on the ship, a fish suction hose is wound on the winch, one end of the fish suction hose is connected with the negative pressure pumping unit, and a fish suction protective cover is arranged at one end of the fish suction hose; the control system comprises a lifting frame installed on the ship, a plurality of traction ropes are connected to the lifting frame, and a plurality of lifting winches used for controlling the traction ropes to stretch out and draw back are arranged on the lifting frame. According to the method, target species are caught better and accurately, damage and waste to fishes are reduced, and the integrity of caught fishes is improved.

Description

Technical Field

[0001] The present application relates to the field of marine fishery, and in particular to a deep-sea light-attracted continuous pump-suction fishing device and method. Background Art

[0002] In recent years, with the decline of offshore fishery resources, deep-sea fishery development has received increasing attention. According to the 2025 "Assessment of the State of World Marine Fishery Resources" report released by the Food and Agriculture Organization of the United Nations (FAO), only 29% of deep-sea fish stocks are fished at sustainable levels, far lower than the 64.5% of offshore fish stocks. Traditional deep-sea fishing relies primarily on active fishing gear such as trawls and purse seines, which are prone to high energy consumption, poor target species selectivity, and significant damage to the seabed ecosystem. Furthermore, deep-sea fish are typically dispersed, making traditional fishing methods inefficient and prone to bycatch of juvenile fish and non-target species, which is not conducive to the sustainable use of fishery resources.

[0003] Light-based fishing techniques, such as light-cover nets and light-laying nets, are primarily used to capture fish in surface to mid-water areas (depths of 0 to 60 meters). However, these techniques rely on manual operation, making automated and efficient fishing difficult in deepwater areas. Existing deep-sea pump-and-suction fishing equipment, primarily used for collecting minerals or biological samples, lacks a trapping system optimized for fish behavior and inadequate continuous fishing capabilities.

[0004] Therefore, there is an urgent need to develop a professional deep-sea fishing device and method to improve fishing efficiency, reduce ecological impact, and adapt to the needs of deep-sea fishery development. Summary of the Invention

[0005] In order to better and more accurately capture target species, reduce damage and waste to fish, and improve the integrity of captured fish, the present application provides a deep-sea light-attracted continuous pump-suction fishing device and method.

[0006] The present application provides a deep-sea light-attracted continuous pump-suction fishing device and method, which adopts the following technical solutions: comprising a sonar detection system installed on a vessel, a light-attracting system, a negative pressure pump-suction unit, a flexible conveying system and a control system; the sonar detection system comprises a sonar detector installed on the vessel, the sonar detector being used to detect schools of fish in the deep sea; the light-attracting system comprises a plurality of trapping lights placed at a certain depth underwater, the trapping lights being used to attract schools of fish; the negative pressure pump-suction unit comprises a fish-suction pump installed on the vessel, the fish-suction pump Used to generate negative pressure to extract fish; the flexible conveying system includes a winch arranged on the ship, a fish suction hose is wound on the winch, one end of the fish suction hose is connected to the negative pressure pumping unit, and a fish suction protective cover is provided on the end of the fish suction hose away from the negative pressure pumping unit; the control system includes a lifting frame installed on the ship, a plurality of traction ropes are connected to the lifting frame, and a plurality of lifting winches for controlling the extension and retraction of the traction ropes are provided on the lifting frame, and the plurality of traction ropes are used to adjust the position of the fish suction protective cover and the trapping light.

[0007] By adopting the above technical solution, when fishing, the fish schools on the seabed are detected by a sonar detector, so as to detect the distribution of fish schools in the target waters, obtain a heat map of the fish school distribution, identify the specific location and number of the fish schools, and provide accurate data for light trapping and fishing operations. The fish schools are attracted by the trapping lights and gathered together, which is more convenient for subsequent pumping; the fish suction hose can be automatically retracted and extended under the control of the winch to meet the fishing needs of different depths. The fish school is sucked into the fish suction hose under the negative pressure of the fish suction pump, and then the fish school is sucked into the ship to achieve the task of catching the fish school; such a design can, on the one hand, reduce the squeezing of the fish school, reduce the damage to the fish school, and ensure the fishing effect of the fish school; on the other hand, such a design can be used to pump the required fish schools in a targeted manner, reduce the fishing of other fish, reduce the waste of other fish, reduce the impact on other fish in the environment, and improve environmental protection.

[0008] Preferably, it also includes a fish-water separation seat installed on a ship, wherein a filter chamber is provided on the fish-water separation seat, a filter plate is provided in the filter chamber, the filter plate is composed of a plurality of grating rods, and adjacent grating rods are spaced apart, the filter chamber is respectively formed with a feed chamber and a drainage chamber on the upper and lower sides of the filter plate, a drain port connected to the drainage chamber is provided on the side wall of the fish-water separation seat, and a fish outlet connected to the feed chamber is provided on the side wall of the fish-water separation seat.

[0009] By adopting the above technical solution, when the fish sucked up by the pump are placed in the feed chamber, seawater is allowed to flow directly into the filter hole, and then the seawater is allowed to flow directly into the sea from the drain outlet, and the fish are discharged from the fish outlet, thereby achieving the purpose of separating the fish. This design improves the convenience of fish-water separation.

[0010] Preferably, the filter plate is arranged to be inclined in a direction close to the fish outlet, and a limit baffle is provided on the fish-water separation seat, and the limit baffle is used to prevent fish from splashing out of the fish-water separation seat.

[0011] By adopting the above technical solution, the inclined filter plate can separate the fish and water sucked up by the pump more quickly, and the use of the limit baffle can reduce the separation of fish and water splashing, thereby improving the stability of fish and water separation.

[0012] Preferably, there are two trapping lights, and the two groups of trapping lights are respectively arranged on the upper sides of the fish-attracting protective cover. A connecting guide is provided between the trapping lights and the fish-attracting protective cover, and the connecting guide is arranged to be inclined outward along the navigation direction of the ship, and the traction rope is connected to the trapping lights.

[0013] By adopting the above technical solution, during fishing, the fish-attracting protective cover and the trapping light are placed in the deep sea together. The symmetrical design of the two connecting guides allows the fish-attracting protective cover to quickly enter the deep sea and maintain the tightness of the towing rope. In combination with the fish-attracting hose, the fish-attracting protective cover can be always positioned forward, thereby improving the stability of the fish-attracting pump. Pulling one of the towing ropes can pull the trapping light on one side upward, making one of the inclined connecting guides vertical. When seawater flows through the connecting guide, the movement of the fish-attracting protective cover can be controlled, improving the convenience of controlling the fish-attracting protective cover and enabling more accurate pumping. The two connecting guides can also serve to gather fish. During fishing, the fish-attracting protective cover is usually tilted slightly downward to limit the position of the fish school and improve the efficiency of the fish-attracting pump. During use, a strong suction force is generated at the fish-attracting protective cover, causing the fish-attracting protective cover to move forward. The use of the two connecting guides can evenly distribute the force of the fish-attracting protective cover moving forward, allowing the fish-attracting protective cover to stay more accurately, thereby improving the convenience of using the pump to attract fish.

[0014] Preferably, a guide plate is provided between the two connecting guide pieces, the guide plate is tilted outwardly in a direction away from the fish suction protective cover, and a plurality of water holes are provided on the guide plate.

[0015] By adopting the above technical solution, the guide plate can be used to guide the fish school, so that the fish school can be pumped more conveniently, thereby improving the efficiency of the pumping work. Combined with the water hole, the resistance of the guide plate working in the water can be reduced, thereby improving the convenience of pumping fishing.

[0016] Preferably, the fish-absorbing protective cover is provided with an inclination adjustment seat, the inclination adjustment seat is rotatably connected to a inclination fixing seat, the two connecting guides are fixed to the inclination fixing seat, the fish-absorbing protective cover is rotatably connected to two support rods, the support rods are provided with a connecting screw at one end away from the fish-absorbing protective cover, a plurality of connecting holes which are plugged into and cooperate with the connecting screws are provided on the connecting guide, the connecting screw passes through the connecting holes, a connecting nut is provided on the connecting screw, and the nut is used to lock the connecting screw.

[0017] By adopting the above technical solution, the length of the connecting rod support is limited by using a connecting screw and a nut, so that a certain angle can be formed between the connecting guide and the fish suction hose. When the connecting guide is offset backward by the impact of seawater, the fish suction hose can be lifted upward, so that the fish suction protective cover can better suck in the fish, thereby improving the convenience of fishing.

[0018] Preferably, it further comprises a camera winch arranged on the ship, wherein an underwater camera is connected to one end of the camera winch away from the ship.

[0019] By adopting the above technical solution, the use of underwater cameras allows staff to see the situation of underwater fish schools more clearly, so that the pump can catch fish schools more accurately, and improve the convenience of deep-sea fishing on ships.

[0020] Preferably, the bottom of the camera is rotatably connected to a rotating seat, and the underwater camera is provided with an adjustment drive member for driving the rotating seat to rotate. An adjustment hole is opened through the rotating seat, and the depth direction of the adjustment hole is the same as the shooting direction of the underwater camera.

[0021] By adopting the above technical solution, when in use, when seawater flows through the adjustment hole, the shooting direction of the underwater camera can be limited, thereby improving the stability of the underwater camera shooting. When the deflection angle of the underwater camera needs to be adjusted, the rotating seat is rotated by adjusting the driving member, so that the underwater camera can shoot more conveniently.

[0022] A deep-sea light-lured continuous pump-suction fishing method, comprising the following steps:

[0023] S1, inspection and detection: use sonar detector to obtain the depth distribution heat map of target fish school;

[0024] S2, Attraction and trapping: Control the trapping light to start specific flashing at the target depth layer to attract fish;

[0025] S3, pumping fish: when the density of the fish school reaches the set threshold, start the fish suction pump to pump the fish school;

[0026] S4, real-time adjustment: adjust the position of the fish-attracting protective cover according to the real-time position of the fish school, and extract the position with higher fish density;

[0027] S5, fish-water separation: The fish suction pump draws the fish and water into the feed chamber, the seawater is discharged from the drain port, and the fish are discharged through the fish outlet.

[0028] By adopting the above technical solution, a sonar detector is used to obtain the position of fish schools, and a high-intensity light source is used to simulate the behavioral characteristics of deep-sea creatures to attract fish to gather. The fish suction hose can be automatically retracted and extended under the control of a winch to adapt to fishing needs at different depths, and the fish schools are sucked into the fish suction hose under the action of negative pressure; the design of the fish suction pump can maintain stable suction and pressure in the deep-sea environment, ensuring the continuity and stability of fishing operations; it solves the problems of poor selectivity and high damage rate of traditional trawling fishing, realizes the sustainable and efficient development of deep-sea fishery resources, effectively improves fishing efficiency, and reduces the fish damage rate.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. When fishing, the fish schools on the seabed are detected by a sonar detector, thereby detecting the distribution of fish schools in the target waters, obtaining a heat map of the fish school distribution, identifying the specific location and number of the fish schools, and providing accurate data for light trapping and fishing operations. The fish schools are attracted by the trapping light and gathered together, which is more convenient for later pumping; the fish suction hose can be automatically retracted and extended under the control of the winch to meet the fishing needs of different depths. The fish school is sucked into the fish suction hose under the negative pressure of the fish suction pump, and then the fish school is sucked into the boat to achieve the task of catching the fish school; such a design can, on the one hand, reduce the squeezing of the fish school, reduce the damage to the fish school, and ensure the fishing effect of the fish school; on the other hand, such a design can be used to pump the required fish school in a targeted manner, reduce the fishing of other fish, reduce the waste of other fish, reduce the impact on other fish in the environment, and improve environmental protection;

[0031] The fish suction shield is placed in the deep sea together with the trapping light. The symmetrical design of the two connecting guides allows the fish suction shield to quickly enter the deep sea and always keep the traction rope tight. In combination with the fish suction hose, the fish suction shield can always be set forward, thereby improving the stability of pumping and sucking fish. Pulling one of the traction ropes can pull the trapping light on one side upward, making one of the inclined connecting guides vertical. When seawater flows through the connecting guide, the movement of the fish suction shield can be controlled, thereby improving the convenience of controlling the fish suction shield and enabling more accurate pumping. The two connecting guides can also play a role in gathering fish. During the fishing process, the fish suction shield is usually tilted slightly downward, which can limit the position of the fish school and improve the efficiency of pumping and sucking fish. During use, a large suction force will be generated at the fish suction shield, causing the fish suction shield to move forward. The use of the two connecting guides can evenly distribute the force of the fish suction shield moving forward, so that the fish suction shield can stay more accurately, thereby improving the convenience of using the pump to suck fish.

[0032] 3. By using a sonar detector to obtain the location of fish schools and adopting a high-intensity light source to simulate the behavioral characteristics of deep-sea creatures, fish schools are attracted to gather. The fish suction hose can be automatically retracted and extended under the control of a winch to adapt to fishing needs at different depths, and fish schools are sucked into the fish suction hose under the action of negative pressure. The design of the fish suction pump can maintain stable suction and pressure in the deep-sea environment, ensuring the continuity and stability of fishing operations. It solves the problems of poor selectivity and high damage rate of traditional trawling fishing, realizes the sustainable and efficient development of deep-sea fishery resources, effectively improves fishing efficiency, and reduces fish damage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a deep-sea light-lured continuous pump-suction fishing device according to Example 1 of the present application;

[0034] Figure 2 This is a schematic diagram of the winch structure mainly embodied in Example 1 of the present application;

[0035] Figure 3 This is an upper diagram of a deep-sea light-lured continuous pump-suction fishing device according to Example 1 of the present application;

[0036] Figure 4 This is a schematic diagram of the structure of an underwater camera mainly embodied in Example 1 of the present application;

[0037] Figure 5 This is a schematic diagram of the structure of the fish-water separation seat mainly embodied in Example 1 of the present application;

[0038] Figure 6 This is a schematic diagram of the structure of the fish-attracting protective cover mainly embodied in Example 1 of the present application;

[0039] Figure 7 This is a schematic diagram mainly showing the structure of the connecting guide piece in Example 1 of the present application;

[0040] Figure 8 This is a schematic diagram of the structure of the trapping lamp mainly embodied in Example 1 of the present application;

[0041] Figure 1: 1. Sonar detector; 2. Towing rope; 3. Trapping light; 4. Fish suction protective cover; 5. Fish suction hose; 6. Rotating seat; 7. Underwater camera; 8. Central control cabinet; 9. Winch; 91. Drum; 92. Rack; 93. Drive motor; 94. Tension sensor; 95. Rotary joint; 96. Connecting hose; 10. Fish suction pump; 11. Lifting frame; 12. Lifting winch; 14. Fish-water separation seat; 15. Adjusting drive member; 16. Adjusting 17. Filter plate; 18. Feed chamber; 19. Grille rod; 20. Limit baffle; 21. Fish outlet; 22. Drain outlet; 23. Drain chamber; 24. Connecting guide; 25. Connecting hole; 26. Nut; 27. Connecting screw; 28. Inclination fixing seat; 29. Inclination adjustment seat; 30. Support rod; 31. Guide plate; 32. Water hole; 33. Lamp holder; 34. Lamp body; 35. Connecting swivel; 36. Drainage cone; 37. Camera winch. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1 - Figure 8 This application is described in further detail.

[0043] The embodiments of the present application disclose a deep-sea light-lured continuous pump-suction fishing device and method.

[0044] Example 1

[0045] Reference Figure 1 A deep-sea light-lured continuous pump-suction fishing device includes a sonar detection system installed on a ship, a light-luring system, a negative pressure pump-suction unit, a flexible conveying system, a control system, a fish-water separation seat 14 and a central control cabinet 8.

[0046] The sonar detection system includes a sonar detector 1 installed on the bottom of the ship. The sonar detector 1 detects the distribution of fish in the target waters by emitting sound wave signals and receiving echo signals, obtains a heat map of the fish distribution, identifies the specific location and number of fish, and provides accurate data for light trapping and fishing operations.

[0047] The light trapping system includes two trapping lights 3 placed at a certain depth underwater, and the trapping lights 3 are used to attract fish.

[0048] The negative pressure pumping unit comprises a fish-suction pump 10 installed on the vessel. The fish-suction pump 10 is a frequency-converting controlled centrifugal fish-suction pump. The pumping flow rate is adjustable and can be adjusted according to the number of fish.

[0049] The flexible conveying system includes a winch 9 installed on the ship. The winch 9 consists of a frame 92, a roller 91 rotatably connected to the frame 92, and a drive motor 93 that drives the winch 91 to rotate. A storage ring groove is provided on the outer wall of the winch 91, and a fish suction hose 5 is wound around the storage ring groove. One end of the fish suction hose 5 passes through the center of the winch 91. The fish suction hose 5 is connected to a rotary joint 95. The end of the rotary joint 95 away from the fish suction hose 5 is provided with a connecting hose 96 connected to the fish suction pump 10, so that the fish suction hose 5 can be more conveniently connected to the fish suction pump 10. A tension sensor 94 for detecting the tension on the fish suction hose 5 is installed on the winch 9. The length of the fish suction hose 5 is adjusted in real time according to the tension value. The winch 9 is equipped with an absolute encoder with a positioning accuracy of ±0.2m to achieve depth adaptive control. The end of the fish suction hose 5, away from the fish suction pump 10, is equipped with a fish suction shield 4. This shield 4 features a progressively expanding trumpet-shaped structure, with an inlet diameter between 1.5 and 2 times the length of the hose. This reduces the inlet flow rate and minimizes the stress response of fish passing through it. The shield 4 also features a grid-like structure on the end away from the hose to screen fish by size, automatically eliminating non-target fish.

[0050] The control system includes a lifting frame 11 installed on the ship, two traction ropes 2 are connected to the lifting frame 11, and a lifting winch 12 for controlling the extension and retraction of the retractable ropes is fixed on the lifting frame 11. The two traction ropes 2 are used to adjust the positions of the fish suction protective cover 4 and the trapping light 3, so that the pumping can be performed more accurately at the location with high fish density, thereby improving the efficiency of fishing.

[0051] The fish-water separator 14 is provided with a filter chamber, which is a rectangular chamber. A filter plate 17 is fixed in the filter chamber. The filter plate 17 is composed of a plurality of grid rods 19, and adjacent grid rods 19 are spaced apart. The filter chamber is formed with a feed chamber 18 and a drainage chamber 23 on the upper and lower sides of the filter plate 17, respectively. The side wall of the fish-water separator 14 is provided with a drainage port 22 connected to the drainage chamber 23, and the other side wall of the fish-water separator 14 is provided with a fish outlet 21 connected to the feed chamber 18, so that the fish and seawater can be separated more conveniently. The filter plate 17 is tilted in the direction close to the fish outlet 21, so that the fish can be discharged more conveniently. A limit baffle 20 is provided on the fish-water separator 14. The limit baffle 20 is designed in an arc shape. The limit baffle 20 is used to prevent fish from splashing out of the fish-water separator 14.

[0052] The two trapping lights 3 are mounted on either side of the fish-absorbing protective cover 4, forming a triangular structure with the two trapping lights 3 and the fish-absorbing protective cover 4. A connecting guide 24 is installed between the trapping lights 3 and the fish-absorbing protective cover 4. The connecting guide 24 is tilted outward along the direction of the ship's navigation. The two connecting guides 24 are designed in a diffused shape. Two traction ropes 2 are connected to the trapping lights 3, so that the two trapping lights 3 can be pulled. When one trapping light 3 rises, one of the tilted connecting guides 24 is made vertical. When seawater flows through the connecting guide 24, the movement of the fish-absorbing protective cover 4 can be controlled, improving the convenience of controlling the fish-absorbing protective cover 4 and enabling more accurate pumping. A guide plate 31 is fixed between the two connecting guides 24. The guide plate 31 is tilted outward in a direction away from the fish-absorbing protective cover 4. The guide plate 31 is provided with multiple water holes 32, which can reduce the resistance to pulling and improve the convenience of using the device.

[0053] The trapping light 3 consists of a lamp holder 33 and a lamp body 34. The lamp body 34 houses multiple independently controllable LED arrays that adjust their light spectrum based on sonar detection data. A towing rope 2 and a connecting guide 24 are respectively fixed to the upper and lower sides of the lamp holder 33. A connecting swivel 35 is fixed to the lamp holder 33, and the lamp body 34 is rotatably connected to the connecting swivel 35. A diversion cone 36 is formed on the side of the lamp body 34 facing away from the connecting swivel 35. The width of the lamp body 34 gradually decreases as it approaches the connecting swivel 35. The diversion cone 36 ensures that the lamp body 34 always faces forward under the influence of seawater, thereby minimizing changes in the illumination direction of the lamp body 34 and making it easier for personnel to observe the fish ahead.

[0054] A tilt adjustment seat 29 is fixed to the fish suction shield 4, which is rotatably connected to a tilt fixing seat 28. Two connecting guides 24 are fixed to the tilt fixing seat 28. Two support rods 30 are rotatably connected to the fish suction shield 4. Connecting screws 27 are integrally formed at the ends of the support rods 30 away from the fish suction shield 4. The diameter of the connecting screws 27 is smaller than that of the support rods 30. The connecting guides 24 are provided with multiple connecting holes 25 that plug into the connecting screws 27. Nuts 26 are threadedly connected to the connecting screws 27 and are used to lock the connecting guides 24. Based on the calculated ocean current vector, the fish suction hose 5 is adjusted to a 30-degree angle with the horizontal plane, gradually raising the fish suction hose 5 to facilitate smoother suction of fish and water.

[0055] A camera winch 37 is also fixed to the vessel, with an underwater camera 7 connected to the end of the camera winch 37 away from the vessel. The bottom of the underwater camera 7 is rotatably connected to a rotating base 6. An adjustment drive 15 is mounted on the underwater camera 7 to drive the rotating base 6. The rotating base 6 is provided with an adjustment hole 16 extending through it. The adjustment hole 16 is a cylindrical hole, and the depth direction of the adjustment hole 16 is aligned with the shooting direction of the underwater camera 7. When seawater flows through the adjustment hole 16, the shooting direction of the underwater camera 7 is limited, improving the stability of the underwater camera 7. When the deflection angle of the underwater camera 7 needs to be adjusted, the rotating base 6 is rotated by adjusting the drive 15, making the underwater camera 7 more convenient to shoot.

[0056] The central control cabinet 8 is internally provided with a plurality of control switches, which are electrically connected to the plurality of winches, the trapping lights 3, and the drive motor 93. This allows the control of multiple devices, thereby enabling more convenient automated operation.

[0057] Example 2

[0058] A deep-sea light-lured continuous pump-suction fishing method comprises the following steps:

[0059] S1, inspection and detection: by transmitting acoustic signals and receiving echo signals, the distribution of fish schools in the target waters is detected and a fish distribution heat map is obtained;

[0060] S2, attracting and trapping: controlling the trapping light 3 to start specific flashing at the target depth layer, and dynamically adjusting the position of the underwater light trapping device to attract fish;

[0061] S3, pumping fish: when the density of the fish school reaches a set threshold, the fish suction pump 10 is started to pump the fish school;

[0062] S4, real-time adjustment: adjusting the position of the fish-attracting protective cover 4 according to the real-time position of the fish school, extracting the position with higher fish density;

[0063] S5, fish-water separation: the fish suction pump 10 draws the fish and water into the feed chamber 18, the seawater is discharged from the drain port 22, and the fish are discharged through the fish outlet 21.

[0064] The advantages of the embodiments of the present application are: first, through the synergistic effect of sonar detection + light attraction + pump suction and delivery, the fish school can be accurately located and the fishing can be completed quickly, and the device is efficient; secondly, compared with traditional fishing methods, through the intelligent image recognition system, only the target fish school is pumped, reducing bycatch and damage to the marine ecology, and contributing to the sustainable development of deep-sea fisheries. Finally, the lifting frame 11 is combined with two traction ropes 2 and two connecting guides 24 to more conveniently adjust the pump position and improve the efficiency of pumping fish schools.

[0065] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A deep-sea light-lured continuous pump-suction fishing device, characterized by: It includes sonar detection system, light trapping system, negative pressure pumping unit, flexible conveying system and control system installed on the ship; The sonar detection system comprises a sonar detector (1) arranged on the vessel, wherein the sonar detector (1) is used to detect schools of fish in the deep sea; The light trapping system includes a plurality of trapping lights (3) placed at a certain depth underwater, and the trapping lights (3) are used to attract fish schools; The negative pressure pumping unit comprises a fish suction pump (10) installed on the vessel, and the fish suction pump (10) is used to suck fish schools by negative pressure; The flexible conveying system comprises a winch (9) arranged on a vessel, a fish suction hose (5) is wound around the winch (9), one end of the fish suction hose (5) is connected to the negative pressure pumping unit, and a fish suction protective cover (4) is arranged at one end of the fish suction hose (5) away from the negative pressure pumping unit; The control system comprises a lifting frame (11) installed on the vessel, a plurality of traction ropes (2) are connected to the lifting frame (11), a plurality of lifting winches (12) for controlling the extension and retraction of the traction ropes (2) are provided on the lifting frame (11), and the plurality of traction ropes (2) are used to adjust the positions of the fish-attracting protective cover (4) and the trapping light (3).

2. A deep-sea light-lured continuous pump-suction fishing device according to claim 1, characterized in that: The invention also includes a fish-water separation seat (14) installed on a ship, wherein a filter chamber is provided on the fish-water separation seat (14), a filter plate (17) is provided in the filter chamber, the filter plate (17) is composed of a plurality of grid rods (19), and adjacent grid rods (19) are arranged at intervals, the filter chamber is respectively formed with a feed chamber (18) and a drainage chamber (23) on the upper and lower sides of the filter plate (17), a drainage port (22) connected to the drainage chamber (23) is provided on the side wall of the fish-water separation seat (14), and a fish outlet (21) connected to the feed chamber (18) is provided on the side wall of the fish-water separation seat (14).

3. The deep-sea light-lured continuous pump-suction fishing device and method according to claim 2, characterized in that: The filter plate (17) is tilted in a direction close to the fish outlet (21), and a limit baffle (20) is provided on the fish-water separation seat (14). The limit baffle (20) is used to prevent fish from splashing out of the fish-water separation seat (14).

4. The deep-sea light-lured continuous pump-suction fishing device according to claim 1, characterized in that: Two trapping lights (3) are provided, and the two trapping lights (3) are respectively arranged on both sides of the fish-attracting protective cover (4), and a connecting guide (24) is provided between the trapping light (3) and the fish-attracting protective cover (4). The connecting guide (24) is arranged to be inclined outward along the navigation direction of the ship, and the traction rope (2) is connected to the trapping light (3).

5. The deep-sea light-lured continuous pump-suction fishing device according to claim 4, characterized in that: A guide plate (31) is provided between the two connecting guide pieces (24), the guide plate (31) being tilted outwardly in a direction away from the fish suction protective cover (4), and a plurality of water holes (32) are provided on the guide plate (31).

6. The deep-sea light-lured continuous pump-suction fishing device according to claim 4, characterized in that: The fish suction protective cover (4) is provided with an inclination adjustment seat (29), and the inclination adjustment seat (29) is rotatably connected to a inclination fixing seat (28). Two connecting guides (24) are fixed on the inclination fixing seat (28). The fish suction protective cover (4) is rotatably connected to two support rods (30). One end of the support rod (30) away from the fish suction protective cover (4) is provided with a connecting screw (27). The connecting guide (24) is provided with a plurality of connecting holes (25) for plugging and matching with the connecting screws (27). The connecting screws (27) pass through the connecting holes (25). A connecting nut (26) is provided on the connecting screw (27), and the nut (26) is used to lock the connecting screw (27).

7. The deep-sea light-lured continuous pump-suction fishing device according to claim 1, characterized in that: The device also includes a camera winch (37) arranged on the ship, wherein an underwater camera (7) is connected to one end of the camera winch (37) away from the ship.

8. The deep-sea light-lured continuous pump-suction fishing device according to claim 7, characterized in that: The bottom of the underwater camera (7) is rotatably connected to a rotating seat (6); an adjusting driving member (15) for driving the rotating seat (6) to rotate is provided on the underwater camera (7); an adjusting hole (16) is provided through the rotating seat (6); and the depth direction of the adjusting hole (16) is the same as the shooting direction of the underwater camera (7).

9. A deep-sea light-lured continuous pump-suction fishing method, using a deep-sea light-lured continuous pump-suction fishing device according to any one of claims 1 to 8, characterized in that: The specific steps are as follows: S1, inspection and detection: using a sonar detector (1) to obtain a thermal map of the depth distribution of the target fish school; S2, attracting and trapping: controlling the trapping light (3) to start specific flashing at the target depth layer to attract fish; S3, pumping the fish school: when the density of the fish school reaches a set threshold, start the fish suction pump (10) to pump the fish school; S4, real-time adjustment: adjusting the position of the fish-attracting protective cover (4) according to the real-time position of the fish school, and extracting the position with higher fish density; S5, fish-water separation: the fish suction pump (10) draws the fish and water into the feed chamber (18), the seawater is discharged from the drain port (22), and the fish are discharged through the fish outlet (21).

Images