Fishing net collecting device and collecting method for fishery administration ship

Abstract

The invention provides a fishing net collecting device and method for a fishery administration ship. The fishing net collecting device and method aim at solving the problems of an existing fishing net collecting mode. The device comprises a net hauling device, a net rolling machine, a net guiding device and the like, the net hauling device can rotationally hauling a net, the net rolling machine provides traction power, and the net guiding device guides a fishing net. The net hauling rod is of a telescopic structure to adapt to different water areas; the opening end of the U-shaped pipe is provided with a blocking pipe gathering fishing net; net hauling equipment is close to the stern to ensure stability; arranging a second fixed pulley to guide the fishing net to unfold; the fixed pulley rotating wheel protrudes to increase friction; the base and the net hauling rod are provided with holes to realize rotary positioning; a net arranging device is further arranged to arrange the fishing net. The fishing net is collected through reasonable steps, and in some embodiments, the ship body slowly moves to avoid damage to the fishing net. The device and the method can reduce damage to the fishing net, reduce damage to aquatic organisms, improve repeated utilization rate of the fishing net, reduce law enforcement cost and improve collection efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to a fishery administration fishing net collection device and method. BACKGROUND

[0002] In the process of fishery administration law enforcement, the collection of illegal fishing nets is an important work. However, the existing fishing net collection method has many problems. On the one hand, when the fishing net is collected, due to the lack of effective devices and methods, the fishing net is easily damaged in the process of netting due to uneven force or improper operation, which not only affects the subsequent reuse of the fishing net and increases the law enforcement cost, but also may cause the fishing net to remain in the water due to damage, thereby causing potential harm to the aquatic ecological environment.

[0003] On the other hand, a large number of aquatic organisms are often attached to the fishing net, and forced operation in the collection process may harm the aquatic organisms and destroy the ecological balance.

[0004] Therefore, the application provides a fishery administration fishing net collection device and method.

[0005] CONTENT Therefore, it is necessary to provide a fishery administration fishing net collection device and method in view of the technical problems that the existing fishing net collection method is easy to damage the fishing net, harm the aquatic organisms, increase the law enforcement cost and destroy the ecological balance in the collection process, so that the damage to the fishing net is reduced, the harm to the aquatic organisms is reduced, the reuse rate of the fishing net is improved, the law enforcement cost is reduced, the ecological balance is maintained, and the collection efficiency is improved.

[0006] The first aspect of the application provides a fishery administration fishing net collection device, which comprises two netting devices arranged symmetrically along the centerline of the deck of a ship body, a net winding machine arranged on the centerline of the deck, and a net guiding device arranged between the netting devices and the net winding machine. The netting device comprises a base and a netting rod connected to the base and capable of rotating, and a bolt assembly is arranged on the base to limit the netting rod. A bolt joint is arranged at the movable end of the netting rod, and the bolt joint is connected to a net hook or a first fixed pulley. The net winding machine is provided with two ropes, and the movable ends of the two ropes are connected to a connecting hook. The net guiding device comprises a U-shaped pipe. The two ropes extend to the two netting devices through the net guiding device after being led out from the net winding machine. The netting device, the net winding machine and the net guiding device are cooperated to form a complete collection system. The netting device can simultaneously net the fishing net from both sides to improve the efficiency. The base and the bolt assembly ensure the stability of the netting rod. The bolt joint can be connected to the net hook or the first fixed pulley to meet different requirements. The net winding machine provides traction power, and the two ropes make the fishing net bear even force. The net guiding device guides the movement of the fishing net to avoid winding and ensure the efficiency and order of the collection process and reduce the damage to the fishing net.

[0007] In other embodiments, the rod body of the net lifting rod is a telescopic structure, which includes an electric telescopic rod or a telescopic joint. The electric telescopic rod can be automatically telescoped by power driving, which is convenient and fast to operate, can accurately control the length, and is suitable for collecting in different depth water areas. The telescopic joint has simple structure and low cost, although the operation is slightly tedious, but it has advantages in occasions with high cost requirements. Both of them can adjust the net lifting rod according to the position of the fishing net and the water depth, expand the use range of the equipment, and improve the adaptability.

[0008] In other embodiments, the open end of the U-shaped pipe is provided with a pipe stopper. When the fishing net passes through the U-shaped pipe, the pipe stopper can effectively prevent the fishing net from spreading to both sides, so that the fishing net moves at the center position of the U-shaped pipe, plays a role in gathering the fishing net, avoids the collision between the fishing net and other equipment or the ship body, reduces the damage possibility, at the same time makes the fishing net enter the net arranging link more orderly, facilitates the arrangement of the net arranging device, improves the efficiency and quality of the net arranging, and lays a foundation for subsequent storage and reuse.

[0009] In other embodiments, the net lifting device is close to the stern of the deck. The stern of the ship body is usually stable and less affected by shaking, which provides a stable working environment for the net lifting device, ensures the accuracy of the net lifting, avoids the failure of the net lifting or the damage of the fishing net caused by the shaking of the ship body, and is close to the stern to facilitate the operation of the staff, improve the working safety and comfort.

[0010] In other embodiments, the stern of the deck is provided with a plurality of supports inclined outwardly to the deck, and a second fixed pulley is connected to the other end of the support. The plurality of supports inclined outwardly to the deck provide stable support for the second fixed pulley, and the second fixed pulley can guide the fishing net to expand, so that the fishing net is in a natural expanded state when passing through, facilitating the staff to remove the attached aquatic organisms, reducing the harm to the aquatic organisms, at the same time reducing the moving friction of the fishing net, protecting the fishing net and prolonging the service life.

[0011] In other embodiments, the rotating wheels in the first fixed pulley and the second fixed pulley protrude radially from the shell. During the movement of the fishing net, the protruding rotating wheels increase the contact area with the fishing net, provide greater friction, better drive the fishing net to move, ensure the smooth passing of the fishing net through each device, improve the stability and reliability of the collection system, at the same time reduce the friction between the fishing net and the shell of the fixed pulley, reduce the risk of damage to the fishing net and wear of the equipment, and prolong the service life of the equipment.

[0012] In other embodiments, both the base and the lifting rod have two corresponding holes. A common rotating shaft is inserted into one of the holes on both the base and the lifting rod. When the lifting rod rotates to a certain angle, the other hole on the base and the lifting rod are coaxially aligned and locked together by a bolt. The holes on the base and the lifting rod, along with the corresponding rotating shaft and bolt, constitute a complete lifting rod rotation and positioning system. The rotating shaft allows the lifting rod to rotate around it, enabling angle adjustment. The bolt locks the positioning hole after the lifting rod rotates to a certain angle, ensuring the stability of the lifting rod during the lifting process and preventing lifting failure or equipment damage due to continued rotation under force, thus ensuring smooth lifting operations.

[0013] Other embodiments also include a net-laying device, located on the centerline of the deck and between the net-guiding equipment and the net-reeling machine. The net-laying device can further organize and arrange the fishing nets after they have been guided by the net-guiding equipment. During the net collection process, the fishing nets may become tangled or messy. The net-laying device, through its own structure and working principle, can arrange the messy fishing nets in an orderly manner, making the net collection more compact and regular, saving storage space, and allowing for quick and convenient removal and reuse in subsequent use. This improves the reuse rate of fishing nets, reduces law enforcement costs, and reflects the rational use and protection of resources.

[0014] The second aspect of this application provides a method for collecting fishing nets on a fishery administration vessel, which employs the aforementioned fishing net collection device on a fishery administration vessel, comprising the following steps: S1, bringing one side of the vessel close to the middle of the fishing net, hooking a portion of the net structure using one of the net-lifting devices, and connecting it to the connecting hook of the rope, while simultaneously fixing the net-lifting rod to the base and connecting a first fixed pulley to the bolt joint; S2, shifting the vessel 180°, hooking another portion of the fishing net structure using another net-lifting device, and connecting it to the connecting hook of the rope, while simultaneously fixing the net-lifting rod to the base and connecting a first fixed pulley to the bolt joint; S3, rotating the vessel 90° in the opposite direction of S2 to return to center, while simultaneously rotating the net-lifting device to pull the fishing net up via the rope; S4, the fishing net is pulled up by the rope. Under the traction of the net, it moves towards the deck of the vessel and passes through the second fixed pulley, causing the net to unfold. S5: Remove the aquatic organisms attached to the unfolded net. S6: The net is then systematically wound and collected using a net guiding device and a net-releasing device. This method utilizes the net collection device on the fishery administration vessel through a reasonable sequence of steps. First, the net is lifted from both sides and securely connected to ensure even force distribution during the lifting process, reducing damage to the net. As the vessel straightens, the net is simultaneously pulled up, coordinating the rotation speed of the vessel and the net-lifting device to ensure stability. The net unfolds through the second fixed pulley, facilitating the removal of aquatic organisms. Finally, the net is systematically wound and collected, increasing the net's reuse rate, reducing enforcement costs, and ensuring the entire process is efficient, orderly, minimizes harm to aquatic life, and maintains ecological balance.

[0015] In other embodiments, in step S3, the hull moves slowly. For large-area fishing nets, slow movement of the hull can prevent the fishing net from being damaged by excessive force, ensure that the fishing net is lifted evenly, give the fishing net an adaptation process, reduce damage caused by sudden force, and at the same time make it easier for operators to observe the condition of the fishing net and adjust the operation in a timely manner, ensuring the smooth progress of the collection work. This fully considers the characteristics of large-area fishing net collection and improves the quality and efficiency of the collection work. Attached Figure Description

[0016] Figure 1 This is the front view of the invention.

[0017] Figure 2 for Figure 1 Top view.

[0018] Figure 3 for Figure 1 Side view.

[0019] Figure 4 This is a schematic diagram of the structure of the grid-starting device in this invention.

[0020] Figure 5 The diagram shows the structure of the net-lifting device in the present invention in the net-hooking and net-lifting states, respectively.

[0021] Figure 6 This is a schematic diagram of the structure of the conductive network device in this invention.

[0022] in: 1. Net lifting equipment; 110. Base; 111. Rotating hole; 112. Positioning hole; 120. Net lifting pole; 121. Bolt joint; 122. Net lifting hook; 123. First fixed pulley; 130. Rotating shaft; 140. Bolt assembly; 2. Net rolling machine; 201. Rope; 202. Connecting hook; 3. Net guiding equipment; 301. U-shaped pipe; 302. Retaining pipe; 4. Support; 5. Second fixed pulley; 6. Net laying device; 7. Fishing net; 8. Hull; 801. Stern. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0024] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0029] As mentioned in the background section, it is crucial to complete the fishing net confiscation task quickly and effectively when fishery administration vessels are carrying out such tasks. Existing confiscation methods are often inefficient and fail to meet the requirements for the protection of fishing nets and aquatic life. This application proposes a fishing net confiscation device and method for fishery administration vessels.

[0030] Example 1 like Figures 1-6 As shown in the illustration, this embodiment discloses a fishing net retrieval device for a fishery administration vessel, including a net-lifting device 1, a net-reeling machine 2, and a net-guiding device 3 placed on the deck 8 of the vessel. Through the coordinated operation of the net-lifting device 1, the net-reeling machine 2, and the net-guiding device 3, a complete retrieval system is formed. The net-lifting device 1 is responsible for lifting the fishing net 7 from the water, the net-reeling machine 2 provides traction power, and the net-guiding device 3 guides and initially organizes the fishing net 7, ensuring that the entire retrieval process is efficient and orderly. Maintaining the fishing net 7 in its unfolded state during the retrieval process not only facilitates the removal of attached aquatic organisms by personnel, reducing harm to aquatic life and maintaining ecological balance, but also makes the orderly entangled fishing net 7 more convenient for subsequent return and reuse, improving resource utilization and reducing law enforcement costs.

[0031] Specifically, in this embodiment, there are two net-lifting devices 1 symmetrically arranged along the centerline of the deck. Each net-lifting device 1 includes a base 110 and a rotatable net-lifting rod 120 connected to the base 110. A bolt assembly 140 is provided on the base 110 to limit the position of the net-lifting rod 120. A bolt joint 121 is provided at the movable end of the net-lifting rod 120, and the bolt joint 121 connects to a net-lifting hook 122 or a first fixed pulley 123. The two net-lifting devices 1 symmetrically arranged along the centerline of the deck allow for simultaneous net-lifting operations from both sides of the fishing net 7, greatly improving net-lifting efficiency, especially suitable for the retrieval of large-area fishing nets 7. The base 110 provides a stable support foundation for the net-lifting rod 120, ensuring that the net-lifting rod 120 will not shake or shift during operation. The rotatable net-lifting rod 120 makes the net-lifting operation more flexible, allowing the angle of the net-lifting rod 120 to be adjusted according to the position and state of the fishing net 7, thus better hooking the fishing net 7. The bolt assembly 140 limits the position of the net-lifting rod 120 to prevent it from rotating excessively or loosening due to excessive force during the net-lifting process, thus ensuring the stability and safety of the process. The bolt joint 121 at the movable end of the net-lifting rod 120 is cleverly designed; by connecting the net-lifting hook 122, it can directly hook the fishing net 7, completing the hooking process. Connecting the first fixed pulley 123 guides and reduces friction during subsequent movement of the fishing net 7, extending the equipment's service life and improving the smoothness of the net 7's movement.

[0032] In this embodiment, the net reel 2, also known as a winch, is located on the centerline of the deck. Two ropes 201 are wound around the reel 2, and each rope 201 has a connecting hook 202 at its movable end. (Placing the reel 2 on the centerline of the deck makes the center of gravity of the entire device more stable, ensuring normal operation even when the hull 8 sways. The design of the two ropes 201 allows for simultaneous traction on both sides of the fishing net 7, ensuring even force distribution during net retrieval and preventing damage to the net 7 due to excessive force on one side. The connecting hooks 202 facilitate connection with the portion of the fishing net 7 hooked by the net retrieval device 1, ensuring a secure traction. The reel 2 uses its own rotation to wind and unwind the ropes 201, thereby achieving the traction and retrieval of the fishing net 7. Its power system can be adjusted according to actual needs to accommodate fishing nets 7 of different sizes and weights.)

[0033] In this embodiment, the net guiding device 3 is located on the centerline of the deck and between the net hauling device 1 and the net reeling machine 2. The net guiding device 3 includes a U-shaped tube 301. Positioned between the net hauling device 1 and the net reeling machine 2, the net guiding device 3 plays a crucial role in connecting the two. The design of the U-shaped tube 301 effectively guides the fishing net 7 from the net hauling device 1 to the net reeling machine 2, preventing the net 7 from becoming tangled or stuck during movement. The shape of the U-shaped tube 301 allows the fishing net 7 to bend naturally as it passes through, reducing friction with the equipment and lowering the risk of damage to the fishing net 7.

[0034] Two ropes 201 are drawn from the net-reeling machine 2, pass through the net-guiding device 3, and then branch out to the two net-lifting devices 1. This arrangement of the ropes 201 makes the entire net-lifting system more rational in structure. After being drawn from the net-reeling machine 2, the ropes 201 first pass through the net-guiding device 3, and then branch out to the two net-lifting devices 1, forming an orderly traction path. During the net-lifting process, the two ropes 201 can evenly distribute the weight of the fishing net 7, ensuring the stability of the net-lifting.

[0035] In this embodiment, the pole body of the net-lifting pole 120 is a telescopic structure, which includes an electric telescopic pole or a telescopic joint. The electric telescopic pole can automatically extend and retract via electric power, making operation convenient and quick. Workers only need to adjust the length of the net-lifting pole 120 by controlling a switch, greatly improving work efficiency. Moreover, the electric telescopic pole has high telescopic precision, allowing for accurate control of the net-lifting pole 120's length according to actual needs, adapting to the retrieval of fishing nets 7 in waters of different depths. The telescopic joint, on the other hand, is characterized by its simple structure and low cost. It achieves its telescopic function through a mechanical structure. Although its operation is slightly more cumbersome than the electric telescopic pole, it has significant advantages in situations where cost is a major concern. Both the electric telescopic pole and the telescopic joint allow the net-lifting pole 120 to be adjusted according to the position of the fishing net 7 and the water depth, expanding the equipment's application range and improving its adaptability.

[0036] In this embodiment, a baffle 302 is provided at the open end of the U-shaped tube 301. When the fishing net 7 passes through the U-shaped tube 301, the baffle 302 effectively prevents the fishing net 7 from spreading to both sides, keeping the fishing net 7 in the center position of the U-shaped tube 301, thus serving to gather the fishing net 7. This avoids collisions between the fishing net 7 and other equipment or the hull 8 during movement, reducing the possibility of damage to the fishing net 7. At the same time, the gathered fishing net 7 is more neat and orderly when entering the subsequent net laying stage, which facilitates the net laying device 6 to lay the fishing net 7, improving the efficiency and quality of net laying, and laying a good foundation for the subsequent storage and reuse of the fishing net 7.

[0037] In this embodiment, the net-lifting device 1 is located near the stern 801 of the hull 8. The stern 801 is typically a relatively stable area of ​​the hull 8, less affected by the swaying of the hull 8, thus providing a stable working environment for the net-lifting device 1. During the net-lifting process, a stable device can better ensure the accuracy of net lifting and avoid failure to lift the net or damage to the fishing net 7 due to the swaying of the hull 8. Moreover, the location near the stern 801 also facilitates operation by the workers, allowing them to control the net-lifting device 1 from a relatively safe and comfortable position, improving the safety and comfort of the work.

[0038] In this embodiment, the stern section 801 of the hull 8 is provided with multiple supports 4 inclined outwards from the deck of the hull 8, and a second fixed pulley 5 is connected to the other end of the supports 4, so that the fishing net 7 is in an unfolded state after being hauled in, making it convenient to remove aquatic organisms attached to the fishing net 7. The multiple supports 4 inclined outwards from the deck of the hull 8 provide stable support for the second fixed pulley 5. This inclined arrangement allows the second fixed pulley 5 to better guide the unfolding of the fishing net 7. The fishing net 7 is pulled at the positions of the two first fixed pulleys 123, and when passing the second fixed pulley 5, the fishing net 7 will naturally unfold due to the angle of the fixed pulley. The unfolded fishing net 7 provides great convenience for workers to remove the attached aquatic organisms. Workers can clearly see the aquatic organisms on the fishing net 7 and use appropriate tools to remove them, reducing damage to the aquatic organisms. At the same time, the presence of the second fixed pulley 5 also reduces the friction of the fishing net 7 during the movement, protecting the fishing net 7 and extending its service life.

[0039] In this embodiment, the rotating wheels of the first fixed pulley 123 and the second fixed pulley 5 protrude radially from the outer shell. During the movement of the fishing net 7, the rotating wheels directly contact the fishing net 7. The protruding rotating wheels increase the contact area with the fishing net 7, thereby providing greater friction and better driving the fishing net 7 to move. This ensures that the fishing net 7 can smoothly pass through various devices, improving the stability and reliability of the entire collection system. Moreover, this design also reduces the friction between the fishing net 7 and the outer shell of the fixed pulleys, reducing the risk of damage to the fishing net 7, while also reducing equipment wear and extending the service life of the equipment.

[0040] In this embodiment, both the base 110 and the lifting rod 120 are provided with two corresponding holes, namely a rotation hole 111 and a positioning hole 112. A common rotation shaft 130 is inserted into one of the holes of the base 110 and the lifting rod 120. When the lifting rod 120 rotates to a certain angle, the other hole of the base 110 and the lifting rod 120 are coaxially aligned and locked together by a bolt. The rotation hole 111 and the positioning hole 112 on the base 110 and the lifting rod 120, along with the corresponding rotation shaft 130 and bolt, constitute a complete rotation and positioning system for the lifting rod 120. The rotation shaft 130 is inserted into the rotation hole 111, allowing the lifting rod 120 to rotate around the rotation shaft 130, thus realizing the angle adjustment function of the lifting rod 120. When the lifting rod 120 rotates to a certain angle, the positioning hole 112 is coaxially aligned and locked together by a bolt. This design ensures the stability of the lifting rod 120 during the lifting process. When hauling in the net, the fishing net 7 exerts a significant pulling force on the hauling rod 120. Without an effective positioning device, the hauling rod 120 may continue to rotate due to this force, leading to hauling failure or equipment damage. However, by locking the positioning hole 112 with the plug bolt, the hauling rod 120 can be securely fixed at the required angle, ensuring the smooth operation of the hauling process.

[0041] like Figure 4 and Figure 5 As shown in this embodiment, the rotating hole 111 on the base 110 is located above the positioning hole 112. That is, when the net-lifting rod 120 coincides with the positioning hole 112 of the base 110, the rotating hole 111 on the net-lifting rod 120 is also located above the positioning hole 112, which can reserve a lever arm for rotating the net-lifting rod 120. During the net-lifting process, the fishing net 7 is quite heavy. If there is not enough lever arm, the workers need to apply a lot of force to rotate the net-lifting rod 120, which not only increases the labor intensity but may also affect the efficiency and accuracy of net-lifting. With the lever arm reserved, the workers can use the lever principle to easily rotate the net-lifting rod 120, improving the convenience of operation. At the same time, the use of a telescopic structure or a rotating structure to drive the rotation of the net-lifting rod 120 further optimizes the net-lifting operation. The telescopic structure can adjust the length of the lever arm as needed to adapt to the collection of fishing nets 7 of different weights; the rotating structure can make the rotation of the net-lifting rod 120 more stable and flexible, reducing the difficulty of operation and labor intensity, and improving the safety and efficiency of the entire net-lifting process.

[0042] This embodiment also includes a net-laying device 6, located on the centerline of the deck and between the net-guiding device 3 and the net-reeling machine 2. It further organizes and arranges the fishing nets 7 after they have been guided by the net-guiding device 3. During the collection of fishing nets 7, they may become tangled or messy for various reasons. If they are collected directly without being organized, it will create significant difficulties for subsequent return and reuse. The net-laying device 6, through its structure and working principle, can arrange the messy fishing nets 7 neatly and orderly, making the nets 7 more compact and regular when collected. This not only saves storage space but also allows for quick and convenient retrieval and use of the fishing nets 7 when needed later, improving the reuse rate of the fishing nets 7, reducing law enforcement costs, and demonstrating the rational use and protection of resources.

[0043] Example 2 A method for seizing fishing nets by a fishery administration vessel, which employs the fishing net seizing device for fishery administration vessels described in Example 1, includes the following steps: S1. Position one side of the boat hull 8 close to the middle of the fishing net 7. This middle part can be the exact midpoint of the net 7 or an area roughly at the midpoint. Use one of the net-lifting devices 1 to hook a portion of the net 7 and connect it to the connecting hook 202 of the rope 201. Simultaneously, fix the net-lifting pole 120 to the base 110 and connect the first fixed pulley 123 to the bolt joint 121. In actual operation, it is necessary to accurately position one side of the boat hull 8 close to the middle of the fishing net 7. This requires the operator to have certain navigation skills and the ability to judge the position of the fishing net 7. Hooking a portion of the fishing net 7 using one of the net-lifting devices 1 is the first step in the retrieval process. This step requires the operator to be proficient in operating the net-lifting device 1 to ensure that the fishing net 7 is accurately hooked and to avoid missed hooks or loose hooks. Fixing the net-lifting pole 120 to the base 110 is to ensure the stability of the net-lifting device 1 during the net-lifting process and to prevent the net 7 from falling off due to shaking of the net-lifting pole 120. Connecting the first fixed pulley 123 to the bolt joint 121 provides guidance and reduces friction for the subsequent movement of the fishing net 7, allowing the fishing net 7 to pass through various devices more smoothly.

[0044] S2. Shift the hull 8 by 180° and hook another part of the fishing net 7 using another net-lifting device 1, connecting it to the connecting hook 202 of the rope 201. Simultaneously, fix the net-lifting pole 120 to the base 110 and connect the first fixed pulley 123 to the bolt joint 121. Shifting the hull 8 by 180° allows for net-lifting operations from the other side of the fishing net 7. The simultaneous operation of two net-lifting devices 1 ensures more even force distribution on the fishing net 7 during the lifting process, reducing the possibility of damage. Similarly, after hooking the other part of the fishing net 7, it needs to be connected to the connecting hook 202 of the rope 201, and the net-lifting pole 120 and the first fixed pulley 123 need to be fixed. These operational steps are the same as in S1. Through this operation, it is ensured that both ends of the fishing net 7 are firmly connected to the collection device, preparing for subsequent net-lifting and collection work.

[0045] S3. The hull 8 rotates 90° in the opposite direction of S2 to return to its original position. Simultaneously, the net lifter rotates, pulling the fishing net 7 up via rope 201. The hull 8 then rotates 90° in the opposite direction of S2 to return to a suitable position for subsequent operation and observation. As the hull 8 returns to its original position, the net lifter rotates, pulling the fishing net 7 up via rope 201. This process requires coordinating the rotation speed of the hull 8 and the net lifter to ensure the fishing net 7 is lifted smoothly. If the hull 8 rotates too quickly or the net lifter rotates uncoordinatedly, the fishing net 7 may be damaged due to uneven force, or it may become entangled in the equipment. Therefore, operators need extensive experience and skilled operation techniques to ensure the successful completion of this step.

[0046] S4. Under the traction of rope 201, fishing net 7 moves towards the deck of hull 8 and passes through the second fixed pulley 5, causing fishing net 7 to unfold. Due to the special design of the second fixed pulley 5, fishing net 7 naturally unfolds as it passes through. The unfolded state of fishing net 7 facilitates observation and removal of attached aquatic organisms by workers, and also provides convenience for subsequent net setting and retrieval. During this process, workers need to closely monitor the state of fishing net 7 to ensure it passes smoothly through the second fixed pulley 5 and unfolds successfully.

[0047] S5. Remove the aquatic organisms attached to the fishing net 7 in its unfolded state; After the fishing net 7 is unfolded, the staff can begin to remove the attached aquatic organisms. This step requires the staff to operate carefully to avoid harming the aquatic organisms. At the same time, timely removal of the aquatic organisms can also reduce the weight of the fishing net 7, making it easier for subsequent collection and storage work.

[0048] S6. The fishing net 7 is systematically wound and stored using the net guiding device 3 and the net releasing device 6. After the aquatic organisms are removed, the fishing net 7 needs to be systematically wound and stored using the net guiding device 3 and the net releasing device 6. The net guiding device 3 guides the fishing net 7 to the net releasing device 6, which then arranges and winds the fishing net 7 neatly according to certain rules. This process needs to ensure that the fishing net 7 moves smoothly between the net guiding device 3 and the net releasing device 6, avoiding jamming or tangling. The systematically wound and stored fishing net 7 not only saves space but also allows for quick and convenient retrieval when needed later, improving the reusability of the fishing net 7 and reducing law enforcement costs.

[0049] In this embodiment, in step S3, the boat hull 8 moves slowly. This slow movement of the boat hull 8 is crucial. For a large fishing net 7, if the boat hull 8 moves too quickly, it will cause excessive stress on the net 7, leading to damage, and it will also be difficult to ensure that the net 7 is lifted evenly. Slow movement of the boat hull 8 allows the net 7 to be gradually retrieved, giving it time to adapt and reducing damage caused by sudden stress. Simultaneously, slow movement makes it easier for operators to observe the state of the net 7 and adjust operations in a timely manner, ensuring the smooth progress of the retrieval work. This operating method fully considers the characteristics and difficulties of retrieving a large fishing net 7, and by reasonably controlling the speed of the boat hull 8, it improves the quality and efficiency of the retrieval work.

[0050] The above description is an explanation of the invention, not a limitation thereof. The scope of the invention is defined in the claims. Within the scope of protection of the invention, any form of modification may be made.

Claims

1. A device for collecting fishing nets on a fishery administration vessel, characterized in that, Including those placed on the ship's deck: The net lifting device consists of two units symmetrically arranged along the centerline of the deck. Each net lifting device includes a base and a net lifting rod connected to the base and capable of rotation. A bolt assembly is provided on the base to limit the position of the net lifting rod. The movable end of the net lifting rod is provided with a bolt joint, and the bolt joint is connected to a net lifting hook or a first fixed pulley. A net winding machine is located on the centerline of the deck, and two ropes are wound on the net winding machine, with each of the two ropes having a connecting hook at its movable end. A net guiding device, located on the centerline of the deck and between the net raising device and the net winding machine, the net guiding device including a U-shaped tube; The two ropes are drawn from the net winding machine, pass through the net guiding device, and branch out to the two net lifting devices.

2. The fishing net confiscation device for a fishery administration vessel as described in claim 1, characterized in that: The pole of the net-lifting pole is a telescopic structure, which includes an electric telescopic pole or a telescopic joint.

3. The fishing net confiscation device for a fishery administration vessel as described in claim 1, characterized in that: The open end of the U-shaped tube is provided with a baffle.

4. The fishing net collection device for a fishery administration vessel as described in claim 1, characterized in that: The net-lifting equipment is located near the stern of the deck.

5. The fishing net confiscation device for a fishery administration vessel as described in claim 4, characterized in that: The stern of the deck is provided with multiple supports that are inclined outwards from the deck, and a second fixed pulley is connected to the other end of the support.

6. The fishing net collection device for a fishery administration vessel as described in claim 5, characterized in that: The rotating wheel of the first fixed pulley and the second fixed pulley protrudes radially from the outer shell.

7. The fishing net confiscation device for a fishery administration vessel as described in claim 1, characterized in that: Both the base and the lifting rod have two holes in corresponding positions. The same rotating shaft is inserted into one of the holes of the base and the lifting rod. When the lifting rod rotates to a certain angle, the other hole of the base and the lifting rod are coaxially arranged and locked to each other by a bolt.

8. The fishing net collection device for a fishery administration vessel as described in claim 1, characterized in that: It also includes a net setter, which is located on the centerline of the deck and between the net setter and the net roller.

9. A method for collecting fishing nets on a fishery administration vessel, comprising using a fishing net collection device for a fishery administration vessel as described in any one of claims 1-8, characterized in that: Includes the following steps: S1. Position one side of the boat close to the middle of the fishing net, hook up part of the fishing net structure through one of the net-lifting devices, and connect it to the connecting hook of the rope. At the same time, fix the net-lifting pole to the base and connect the first fixed pulley to the bolt joint. S2. Shift the hull 180° and hook up another part of the fishing net structure through another net-lifting device, and connect it with the connecting hook of the rope. At the same time, fix the net-lifting pole on the base and connect the first fixed pulley on the bolt joint. S3. The hull rotates 90° in the opposite direction of S2 to return to center, and at the same time the net jack rotates to pull the fishing net up through the rope. S4. The fishing net moves towards the deck of the ship under the pull of the rope and passes through the second fixed pulley, so that the fishing net is in an unfolded state. S5. Remove the aquatic organisms attached to the fishing net in its unfolded state; S6. The fishing net is systematically wound and stored using a net guiding device and a net laying device.

10. A method for seizing fishing nets from a fishery administration vessel as described in claim 9, characterized in that: In S3, the ship moves slowly.

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