Net trap device capable of being automatically opened and closed and fishing equipment and fishing method thereof

Abstract

According to the net trap capable of being opened and closed in a self-service mode, the fishing device and the fishing method of the net trap capable of being opened and closed in the self-service mode are provided, the net trap opening of the net trap is automatically opened by means of buoyancy generated by the floating assembly in the water body, and in the process that a net trap body is continuously lifted upwards in the water, the net trap is opened; the net trap opening is automatically closed by utilizing the floating assembly under the action of inertial resistance of a water body, so that the overall structural design is obviously simplified, and people can operate and use the device conveniently; according to the fishing device and the fishing method adopting the net trap, people can correspondingly utilize the net trap to carry out non-injury visual trapping and surrounding or visual trapping observation in water by controlling the winding and unwinding speed and the winding speed of the traction chain, so that people can observe the dynamic state in the net trap in real time, the interactivity and the interestingness of fishing experience are enhanced, and the fishing experience is improved. And fishing activities of people are enriched.

Description

Technical Field

[0001] This application relates to the field of net trap technology, and in particular to a net trap device that can be automatically opened and closed, as well as fishing equipment and fishing methods. Background Technology

[0002] In the existing mesh trap device structure, in order to realize the corresponding automatic opening and closing function of the mesh trap opening, the structural design is relatively complex. Generally, the opening and closing action is carried out by setting up an electric mechanism and a cable to control the gate assembly. This design not only increases the complexity of the mesh trap device structure, but also increases the manufacturing and maintenance costs.

[0003] Furthermore, in existing technologies, net trap devices use conventional ropes for suspension and traction, with exposed communication and power supply cables. Therefore, during use, the flexibility of the ropes in all directions causes the suspended net trap device to swing in all directions. The exposed communication and power supply cables are prone to pulling, breaking, and mutual interference, which in turn affects the stability of the net trap device in the water and the stability of the images of fish entering the net trap device, thus affecting the fish-attracting effect.

[0004] In response, this application develops a net trap device that differs from existing ones, and also provides fishing equipment and fishing methods using the net trap device developed in this application.

[0005] [Application Content]

[0006] The technical problem this application aims to solve is to provide an automatically opening and closing net trap device and its fishing equipment and method. The net trap device utilizes the net trap assembly and gate assembly, configured to have different sinking velocities in the water due to their overall average density and / or sinking resistance. This allows the net trap opening to automatically open due to the difference in sinking velocities between the net trap assembly and the gate assembly during the release of the traction chain to submerge the net trap device. Furthermore, during the continuous lifting of the net trap device in the water by reeling in the traction chain, the gate assembly relative to the net trap assembly... The net trap opening can be automatically closed due to the speed difference generated, and the gate assembly remains closed after the net trap device is lifted out of the water. This scheme significantly simplifies the overall structural design of the net trap device, making it easier for people to operate and use. For the fishing equipment in this application, people can control the release and retraction speed of the traction chain to use the net trap device in the water for non-harmful visual enticement and capture or visual enticement and observation, allowing people to observe the dynamics inside the net trap device in real time, enhancing the interactivity and fun of the fishing experience, and enriching people's fishing activities.

[0007] To address the aforementioned technical problems, this application provides an automatically opening and closing net trap device, comprising a hollow net trap assembly, a gate assembly, and a traction chain. The net trap assembly is equipped with a first detection component for detecting the interior of the net trap assembly. The net trap assembly has a net trap opening. The gate assembly is movably disposed relative to the net trap assembly to open and close the net trap opening. The lower end of the traction chain is connected to either the net trap assembly or the gate assembly. The net trap assembly and the gate assembly are configured to have different sinking velocities in water based on their overall average density and / or sinking resistance in the water. This allows the gate assembly to automatically open the net trap opening due to a sinking velocity difference with the net trap assembly when the traction chain is released to sink the net trap device into the water. Conversely, when the traction chain is wound up to continuously lift the net trap device in the water, the gate assembly to automatically close the net trap opening due to a velocity difference with the net trap assembly. Furthermore, after the net trap device is lifted out of the water, the gate assembly maintains the closed net trap opening.

[0008] As described above, in an automatically opening and closing net trap device, the traction chain is connected to a gate assembly, the net trap opening is located at the bottom of the net trap assembly, the gate assembly is located below the net trap assembly, and the overall average density of the gate assembly is greater than that of the net trap assembly. When the traction chain is released to sink the net trap device into the water, the gate assembly sinks relatively faster than the net trap assembly, thereby automatically opening the net trap opening. When the traction chain continuously lifts the net trap device in the water, in the initial stage, the traction chain pulls the gate assembly to rise relatively faster than the net trap assembly until the gate assembly abuts against the net trap assembly and automatically closes the net trap opening, and then the entire device moves out of the water surface together.

[0009] As described above, in an automatic opening and closing net trap device, the net trap assembly is further configured to continue sinking after the traction chain stops unwinding and the gate assembly stops sinking, or when the gate assembly is lower than the sinking speed of the net trap assembly, until the lower fixed frame abuts against the gate assembly and automatically closes the net trap opening.

[0010] As described above, in an automatic opening and closing net trap device, a flexible cable is circumferentially connected between the net trap assembly and the gate assembly. When the traction chain is released to sink the net trap device into the water, the gate assembly sinks relatively quickly relative to the net trap assembly until the flexible cable is taut, thereby automatically opening the net trap opening. When the traction chain continuously lifts the gate assembly in the water, the gate assembly rises relatively quickly relative to the net trap assembly in the initial stage, while the flexible cable bends and relaxes until the gate assembly abuts against the net trap assembly and automatically closes the net trap opening. Afterward, the entire device moves out of the water surface together.

[0011] As described above, an automatic opening and closing net trap device includes an upper fixed frame and a lower fixed frame. Net trap stops are fixedly and intermittently provided between the upper fixed frame and the lower fixed frame. A limiting through hole is provided in the middle of the upper fixed frame, through which a traction chain can slide. The inner wall of the limiting through hole restricts the relative deflection of the traction chain passing through it, so that the net trap assembly always remains directly above the gate assembly.

[0012] As described above, in an automatic opening and closing mesh trap device, a floating component is connected to the lower fixed frame or mesh trap stop bar, and a light source component and / or a second detection component are optionally connected to the floating component.

[0013] As described above, in an automatic opening and closing net trap device, the floating component is composed of multiple buoyancy components, which are detachably connected to the lower fixed frame or net trap stop via buoyancy connecting seats.

[0014] As described above, an automatically opening and closing mesh trap device includes a gate assembly comprising a gate frame and a bottom mesh covering the gate frame. A vertically arranged lifting rod is connected to the middle of the gate frame, and the upper end of the lifting rod is provided with a lifting lug for connecting to the lower end of a traction chain.

[0015] As described above, in a mesh trap device that can be automatically opened and closed, counterweight cables are evenly distributed around the bottom side of the gate assembly, and the lower ends of each counterweight cable converge at the central axis of the gate assembly and are connected to a counterweight.

[0016] As described above, an automatically opening and closing net trap device includes a net trap assembly with a net trap base connected to its bottom side via a base frame connecting rod. A net trap opening is formed between the bottom side of the net trap assembly and the net trap base. A gate assembly can slide up and down relative to the net trap assembly to open and close the net trap opening. The lower end of the traction chain is connected to the upper part of the net trap assembly. The overall average density of the gate assembly is less than the overall average density of the net trap assembly. When the traction chain is released to submerge the net trap device in the water, the gate assembly slides upward relative to the net trap assembly, thereby automatically opening the net trap opening. When the net trap device is continuously lifted in the water by the traction chain, the gate assembly slides downward relative to the net trap assembly until the gate assembly closes the net trap opening, and then the entire device moves out of the water surface together.

[0017] As described above, in an automatic opening and closing net trap device, the gate assembly has an upward-facing water-blocking surface. When the net trap device is continuously lifted in the water by a traction chain, the water-blocking surface is resisted by the water, causing the gate assembly to slide downward relative to the net trap assembly until the gate assembly closes the net trap opening. Then, the entire device is lifted together until it leaves the water surface.

[0018] As described above, an automatically opening and closing net trap device includes an upper fixed frame and a lower fixed frame. Net trap stops are fixedly and intermittently provided between the upper and lower fixed frames. The upper fixed frame is provided with a lifting lug. The lower end of the traction chain is connected to the upper fixed frame through the lifting lug. The net trap assembly also includes vertical guide rods spaced apart from adjacent net trap stops. The gate assembly is slidably connected to the vertical guide rods.

[0019] As described above, in an automatically opening and closing net trap device, the upper end of the base frame connecting rod extends to form a vertical guide rod, or the base frame connecting rod and the vertical guide rod are coaxially arranged. The gate assembly includes a gate fixing frame and a gate stop rod. The gate fixing frame is slidably connected to the vertical guide rod. The gate stop rod is connected to the gate fixing frame at intervals. A buoyancy component is connected to the gate stop rod or the gate fixing frame. The upper surface of the buoyancy component forms a water-blocking surface. A light source assembly is provided on the buoyancy component or the net trap base frame.

[0020] As described above, in an automatic opening and closing net trap device, the buoyancy component is connected to the lower end of the gate stop bar. Hollow first adjusting vertical tubes are spaced apart on the side of the gate stop bar. The lower end of the first adjusting vertical tubes is movably abutting against the buoyancy component. The first adjusting vertical tubes are slidably connected to the gate fixing frame. Second adjusting vertical rods, corresponding vertically to the first adjusting vertical tubes, are spaced apart on the side of the net trap stop bar. The upper end of the second adjusting vertical rods is fixedly connected to the upper fixing frame. The upper end of the first adjusting vertical tubes and the lower end of the second adjusting vertical rods are slidably sleeved together, so that the first adjusting vertical tubes can slide upward relative to the second adjusting vertical rods to adjust the spacing between the corresponding two gate stop bars.

[0021] As described above, in an automatic opening and closing net trap device, the gate fixing frame is located outside the lower fixing frame such that each gate stop bar and the corresponding net trap stop bar are radially offset from each other, and the inner side of the buoyancy member is provided with a shoulder that abuts against and is engaged with the edge of the gate assembly when the gate assembly closes the net trap opening.

[0022] As described above, an automatically opening and closing net trap device has multiple net trap openings formed between the net trap assembly and the net trap base. Each net trap opening is equipped with a gate assembly and a buoyancy member. At least one of the buoyancy members is optionally connected to a second detection assembly, and the second detection assembly located on the buoyancy member is configured to counteract the buoyancy force on the gate assembly and the buoyancy member in the water, thereby keeping the corresponding gate assembly closed.

[0023] As described above, in an automatically opening and closing net trap device, the traction chain is internally provided with an electrical control harness for electrical connection to corresponding functional components of the net trap device. The traction chain is formed by connecting multiple chain links, and adjacent chain links are hinged by a chain link pin, so that the adjacent chain links can only rotate around the chain link pin and restrict the movement of the adjacent chain links along the axial direction of the chain link pin, thereby restricting the swing of the traction chain along the axial direction of the chain link pin.

[0024] As described above, in an automatic opening and closing net trap device, the chain link has a flat structure, and the width of the chain link is configured to fit with the width of the winding groove of the winding wheel, so that the two side walls of the winding groove can abut against the side wall in the width direction of the winding chain link, thereby restricting the traction cable chain from swinging axially along the chain link pin axis.

[0025] This application also includes a fishing device that employs the aforementioned automatically opening and closing net trap device, comprising a control platform, a support column rotatably connected to the control platform, a cantilever connected to the upper part of the support column, a reel with a winding groove rotatably connected to the outer end of the cantilever, a traction chain wound on the winding groove, the lower end of the traction chain connected to the net trap device, the fishing device further comprising a retractor for driving the reel to rotate, a battery unit with a heat-conducting shell detachably conductively connected to the bottom of the control platform, and a fish-attracting component provided above or inside the net trap assembly, the fish-attracting component being configured to release bait or fish-attracting odor into the net trap assembly.

[0026] As described above, in a fishing device, a fish basket is connected to the control platform. A rotary drive motor is provided on the control platform to drive the support column to rotate relative to the control platform, so that the net trap device, which is detached from the water surface at a preset height, rotates to above the fish basket. When the net trap device is placed into the fish basket and sinks into the water, the opening of the net trap automatically opens to release the fish.

[0027] As described above, in a fishing recreational device, the control platform includes a pontoon body and a fixed bracket mounted on the pontoon body. The supporting column is rotatably connected to the fixed bracket. The pontoon body is equipped with a rotary drive motor, which is driven by the supporting column. The outer end of the cantilever is equipped with a take-up reel seat, and the reel is rotatably connected to the take-up reel seat. The take-up motor is mounted on the take-up reel seat and driven by the reel.

[0028] As described above, in a fishing recreational device, the control platform includes a pontoon body, and the bottom side of the pontoon body is provided with a propulsion power component for driving the control platform to move in the water. The pontoon body is cylindrical; or the pontoon body is cuboid, and the front part of the cuboid pontoon body is provided with a water-dividing head.

[0029] As described above, in a fishing device, the fish-attracting component comprises a bait feeding component and a buoyancy block positioned above a net trap component. The bait feeding component is positioned on the buoyancy block and can remain exposed above the water surface. The buoyancy block is movably positioned relative to the net trap component, and when the net trap component sinks into the water, the buoyancy block is restricted to floating above the net trap component. The bait feeding component is connected to a bait delivery pipe, the lower end of which extends into or above the interior of the net trap component.

[0030] As described above, in a fishing device, the buoyancy block has a central through hole, the traction chain passes through the central through hole and is connected to the net trap assembly, and the buoyancy block is configured to cover the upper end of the net trap assembly when the net trap assembly is out of the water.

[0031] As described above, in a fishing device, the fish-attracting component is a biomimetic fish pendant that is suspended and located within a net trap component and can release fish-attracting odors.

[0032] This application also provides a fishing device that employs the aforementioned automatically opening and closing net trap device, comprising a hull, with buoyancy platforms connected to the bow and stern of the hull, the hull and the buoyancy platforms connected by a connecting component, a ladder frame connecting the hull and the buoyancy platforms, a support assembly on the buoyancy platform, a reel with a winding groove rotatably connected to the outer end of the support assembly, a traction chain wound on the winding groove, and an automatically opening and closing net trap device suspended from the lower end of the traction chain, a reel motor for driving the reel to rotate is also provided on the outer end of the support assembly, and a fish attractant assembly is provided above or inside the net trap assembly, the fish attractant assembly being configured to release bait or fish attractant scent into the net trap assembly.

[0033] This application further provides a fishing recreation method, which employs the fishing recreation equipment described above, including:

[0034] S1. Release the traction chain and submerge the net trap device in the water, so that the gate assembly and the net trap assembly move relative to each other during the sinking process and automatically open the net trap opening.

[0035] S2. Activate the fish-attracting component and accordingly put bait into the net trap component or release fish-attracting scent to lure fish into the net trap opening and gather there.

[0036] S3. Activate the first detection component set on the net trap assembly and / or activate the second detection component set on the buoyancy component, and display the images detected by the first detection component and / or the second detection component in real time on a wired or wireless terminal to observe the fish moving inside the net trap opening.

[0037] As described above, the fishing method, after step S3, further includes:

[0038] S4. Based on the image from step S3, determine the fish that have entered the net trap opening. When the number, size, and / or species of fish entering the net trap opening reach the expected level, retract the traction chain and continuously lift the net trap device upwards, causing the gate assembly to move at a differential speed relative to the net trap assembly until the net trap opening automatically closes in the water. Then, the net trap assembly and the gate assembly move together and are lifted until they leave the water surface. When the entire net trap device leaves the water surface, the net trap assembly or the gate assembly remains closed under the action of gravity.

[0039] S5. After the net trap device is lifted off the water surface at the preset height, first rotate the support column and rotate the net trap device to be above the fish basket. Then release the traction chain to make the net trap device descend and sink into the fish basket. The gate component sinks at a different speed relative to the net trap component, causing the net trap opening to open automatically, and finally release the fish into the fish basket.

[0040] S8. The net trap device is continuously lifted by winding up the traction chain, so that the opening of the net trap automatically closes and the entire net trap device is lifted off the water surface at a preset height where the fish basket is located, completing the visual and harmless attraction and capture.

[0041] Compared with existing technologies, the net trap device and fishing equipment and method of this application that can be automatically opened and closed have the following advantages:

[0042] 1. In the net trap device of this application, the net trap assembly and the gate assembly are configured to have different sinking velocities in the water by means of their overall average density and / or sinking resistance in the water. This allows the gate assembly and the net trap assembly to automatically open the net trap opening by creating a sinking velocity difference during the process of releasing the traction chain to sink the net trap device to different water depths. Furthermore, when the net trap device is continuously lifted in the water by winding up the traction chain, the gate assembly can automatically close the net trap opening by creating a velocity difference relative to the net trap assembly. Moreover, when the net trap device is lifted out of the water, the net trap assembly or the gate assembly keeps the net trap opening closed by gravity. Therefore, when using the net trap device of this application for fishing activities, the net trap opening can be automatically opened and closed at different stages of operation, ensuring the smooth conduct of fishing activities such as luring observation and luring encirclement.

[0043] 2. When the net trap device of this application is removed from the water surface, the opening of the net trap is kept closed, which can prevent the opening of the net trap from being opened after it is removed from the water surface and thus affecting the transfer of the catch.

[0044] 3. In the net trap device of this application, the gate assembly located at the bottom of the net trap assembly is connected by a traction chain. When the traction chain is wound up for lifting, the lower end of the traction chain can quickly respond to pull the gate assembly towards the net trap assembly to quickly block the net trap opening, thereby achieving effective luring and trapping.

[0045] 4. In the net trap device of this application, by suspending a counterweight below the gate assembly located at the bottom of the net trap assembly, when the traction chain is released, the gate assembly can sink faster relative to the net trap assembly due to the gravity of the counterweight, thus quickly opening the net trap opening; moreover, by evenly pulling the gate assembly with the counterweight cable, it can be ensured that the gate assembly maintains a basically horizontal state during sinking and lifting, making it easier to receive the bait to better attract fish, and also ensuring that the gate assembly completely closes the net trap opening, avoiding the phenomenon of incomplete closure.

[0046] 5. In the net trap device of this application, when the net trap assembly and the gate assembly are connected circumferentially by a flexible cable, people can place the net trap device in different water depths for luring observation or luring and trapping as needed by releasing the traction chain. When there is no flexible cable connecting the net trap assembly and the gate assembly, the net trap assembly sinks relatively slowly compared to the gate assembly during the sinking process of releasing the traction chain. When the traction chain is stopped or the speed of releasing the traction chain is controlled to be lower than the sinking speed of the net trap assembly, the net trap assembly continues to sink until it touches the gate assembly and automatically closes the net trap opening. This can further increase the difficulty of luring and trapping, making fishing activities more challenging.

[0047] 6. In the net trap device of this application, by detachably connecting the buoyancy component to the net trap assembly, the overall average density of the net trap assembly relative to the gate assembly and the resistance to sinking in water are further changed, so that the net trap opening is smoother.

[0048] 7. Another structure of the net trap device of this application: the traction chain is connected to the net trap assembly, and the gate assembly is slidably connected to the net trap assembly. The overall average density of the gate assembly is less than the overall average density of the net trap assembly, or the overall average density of the gate assembly is greater than or equal to that of the net trap assembly, and the sinking resistance of the net trap assembly is less than the sinking resistance of the gate assembly. Therefore, when the net trap device sinks, the gate assembly slides upward relative to the net trap assembly and can automatically open the net trap opening from the side. When the net trap assembly is lifted, the gate assembly slides downward relative to the net trap assembly and can automatically close the net trap opening from the side. It also has the characteristics of convenient operation and can be used for induction observation or induction trapping.

[0049] 8. For another structure of the net trap device of this application, by setting a first adjusting vertical pipe and a second adjusting vertical rod that can be relatively telescopically adjusted, the interval distance between the two gate bars can be adjusted so that fish smaller than the interval distance can be released without injury during the induction and encirclement operation; before adjusting the interval distance of the gate bars, it already meets the requirements of relevant regulations. By designing it to be further adjustable, a strategy of intentionally keeping large fish and releasing small fish can be realized, so that the operation is in line with the sustainable fisheries policy and ensures that the induction and encirclement can be carried out sustainably.

[0050] 9. The net trap device of this application is equipped with a first detection component and a second detection component. When fishing activities are carried out using the net trap device, it is possible to achieve visual enticement and trapping or visual enticement and observation, allowing people to observe the dynamics inside the net trap device in real time, enhancing the interactivity and fun of the fishing experience, and enriching people's fishing activities.

[0051] 10. Another structure of the net trap device of this application is configured to have multiple net trap openings, each corresponding to a buoyancy member. Depending on the needs of attracting observation or trapping, a second detection component can be detachably mounted on the corresponding buoyancy member. The weight of the second detection component counteracts the buoyancy generated by the gate assembly and the buoyancy member in the water, thereby forcing the buoyancy member with the second detection component to act on the gate assembly to keep the corresponding net trap opening closed. Other buoyancy members without a second detection component act on their corresponding gate assembly to open the corresponding net trap opening. Ultimately, this allows people to observe fish activity from multiple angles and directions through the first and second detection components.

[0052] 11. The net trap device of this application further includes a light unit inside each buoyancy component, which provides a clearer real-time image for attracting and trapping fish by controlling the light, and can also improve the attraction of fish by controlling the light effect.

[0053] 12. In this application, the net trap body is suspended and connected by a flat traction chain. Adjacent chain links are hinged by chain link pins, which restricts the swing of the suspended gate assembly or net trap body along the chain link pin direction. Furthermore, the width of the chain link is configured to be equivalent to the width of the winding groove of the reel, so that the side wall of the traction chain wound in the winding groove can abut against the side wall of the winding groove. This restricts the swing of the traction chain and net trap body in the unwinding part along the chain link pin direction, providing a relatively stable working condition for luring and trapping and luring observation, and making the visualization clearer.

[0054] 13. In the fishing equipment of this application, the battery unit is detachably and electrically connected to the bottom of the control platform, and the battery unit is equipped with a heat-conducting shell. During use, the heat generated by the battery unit can be exchanged with the water in a timely manner through the heat-conducting shell to achieve rapid heat dissipation, effectively avoiding the risk of the battery unit bulging or being damaged due to untimely heat dissipation.

[0055] 14. In the fishing equipment of this application, the support column and the control platform are rotatably connected. When the net trap device is lifted out of the water during the enticement and trapping process, the net trap body containing the fish can be directly rotated to the top of the corresponding fish basket by controlling the rotation of the support column. Then, the traction chain is released to sink the net trap body into the water of the fish basket, and the opening of the net trap is automatically opened. No additional power is required to operate it, so that the fish automatically enters the fish basket. Therefore, the fishing equipment efficiently realizes the automatic and damage-free transfer of the fish into the fish basket and has the characteristics of convenient operation.

[0056] 15. The fishing recreation equipment of this application, by equipping the bottom of the pontoon body with a propulsion component, allows people to control the movement of the fishing recreation equipment in the water to obtain the optimal position for attracting and encircling or attracting and observing. At the same time, in order to facilitate the control of the platform's movement in the water, the corresponding pontoon body is preferably equipped with a water-dividing head at its front to reduce water resistance, so that it can quickly reach the predetermined position.

[0057] 16. In the fishing equipment of this application, a buoyancy block is movably installed above the net trap body. The lower end of the traction chain passes through the central through-hole on the buoyancy block and connects to the net trap body. By utilizing the buoyancy generated by this buoyancy block, the bait feeding component can be kept above the water surface during attraction observation or attraction and trapping operations, thus preventing the bait feeding component and the bait inside from being soaked in water for a long time, which would affect the attraction effect. In addition, during attraction and trapping operations, when the traction chain is wound up and the net trap body is lifted out of the water, the buoyancy block can cover the upper opening of the net trap body, preventing the fish inside the net trap body from jumping out of the upper opening.

[0058] 17. As a minimalist design scheme for the fishing equipment of this application, the fish-attracting component adopts a biomimetic fish pendant that can release fish-attracting odors, and the biomimetic fish pendant is suspended in the net trap body. People can lure and capture or lure and observe as needed, making the operation more convenient.

[0059] 18. As another solution to the fishing recreation equipment of this application, it is applicable to large waters, such as lakes, reservoirs or nearshore areas. By connecting a buoyancy platform to the hull and building a support assembly on the buoyancy platform, and by building a ladder between the hull and the buoyancy platform to facilitate people's movement between the hull and the buoyancy platform, the net trap device of this application is suspended at the outer end of the support assembly by a reel. Therefore, it can further expand people's fishing recreation activities in large waters, enabling them to also have the function of attracting and encircling or attracting observation, thus solving the defects of conventional fishing recreation equipment that is difficult or inconvenient to carry out fishing recreation activities in large waters.

[0060] 19. The fishing method of this application adopts the fishing equipment of this application, including the ability to conduct induction and observation and induction and encirclement operations. In particular, in the induction and encirclement operation, people can adjust the interval between two adjacent gate bars to achieve a targeted encirclement and capture strategy of keeping large fish and releasing small fish, which also enriches the fishing method. Attached Figure Description

[0061] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings, wherein:

[0062] Figure 1 This is a schematic diagram of the structure of the first embodiment of the wire trap device of this application;

[0063] Figure 2 This is a schematic diagram of the structure of a second embodiment of the wire trap device of this application;

[0064] Figure 3 This is an exploded view of a second embodiment of the mesh trap device of this application;

[0065] Figure 4 This is a side view of a second embodiment of the mesh trap device of this application;

[0066] Figure 5 This is a schematic diagram of the connection structure of the second detection component in the mesh trap device of this application;

[0067] Figure 6 This is a side view of a third embodiment of the mesh trap device of this application;

[0068] Figure 7 This is a schematic diagram of the buoyancy connection seat in the net trap device of this application;

[0069] Figure 8 This is a schematic diagram of the net trap device according to the first embodiment of the fishing equipment in this application;

[0070] Figure 9 This is a schematic diagram of the fishing equipment of this application, which adopts the first embodiment of the net trap device and is equipped with a buoyancy block and a bait feeding component.

[0071] Figure 10 This is a schematic diagram of the fishing equipment of this application, which uses a net trap device according to the first embodiment, and the float body is a cuboid with a water-dividing head at the front.

[0072] Figure 11 The first embodiment of the fishing equipment in this application is a net trap device, the float body is a cuboid with a water-dividing head at the front, and is equipped with a buoyancy block and a bait feeding component.

[0073] Figure 12A schematic diagram of the fourth embodiment of the wire trap device.

[0074] Figure 13 An exploded view of the fourth embodiment of the net trap device;

[0075] Figure 14 A schematic diagram of the structure of the fourth embodiment of the net trap device, equipped with a buoyancy block and a bait feeding assembly;

[0076] Figure 15 A schematic diagram of the structure of the fishing equipment of this application, which is submerged in water and opens the net trap opening when the net trap device is used in the fourth embodiment of the application.

[0077] Figure 16 A schematic diagram of the structure of the fishing equipment of this application, which uses the fourth embodiment of the net trap device to detach from the water surface and close the net trap opening;

[0078] Figure 17 This is a schematic diagram of the structure of the fishing equipment of the present application, in which the net trap device of the fourth embodiment is rotated above the fish basket;

[0079] Figure 18 This is a schematic diagram of the structure of the fishing equipment of the present application, in which the net trap device of the fourth embodiment is sunk into the fish basket and the opening of the net trap is opened;

[0080] Figure 19 This is an exploded structural diagram of the control platform in the fishing recreation equipment of this application;

[0081] Figure 20 This is a bottom view of the pontoon body connected to the propulsion assembly in the fishing equipment of this application;

[0082] Figure 21 This is a schematic diagram of the structure of the bait feeding component in this application;

[0083] Figure 22 for Figure 14 A magnified view of marker A;

[0084] Figure 23 for Figure 14 A magnified view of marker B;

[0085] Figure 24 This is a schematic diagram of the structure of the fishing equipment in this application, in which the float body is a cuboid and a water-dividing head is provided at the front.

[0086] Figure 25 This is a bottom view of the fishing equipment in this application, where the pontoon body is a cuboid and the bottom is connected to a propulsion assembly;

[0087] Figure 26This is a schematic diagram of the structure of the fish-attracting component on the net trap body of the fishing equipment in this application, which uses a biomimetic fish pendant that can release fish-attracting odor.

[0088] Figure 27 This is a schematic diagram of the hull and buoyancy platform used in the fishing recreation equipment of this application.

[0089] Figure 28 for Figure 27 A magnified view of the marker C;

[0090] Figure 29 This is a top view of the hull and buoyancy platform used in the fishing recreation equipment of this application. Detailed Implementation

[0091] The following is in conjunction with the accompanying drawings. Figure 1-29 The implementation methods described in this application are explained in detail.

[0092] like Figure 1 , 2As shown in Figures 3, 4, 6, 12, 13, and 14, this application discloses an automatically opening and closing net trap device, comprising a hollow net trap assembly 100, a gate assembly 103, and a traction chain 1072. The net trap assembly 100 is provided with a first detection component 1074 for detecting the interior of the net trap assembly 100. The net trap assembly 100 has a net trap opening 101. The gate assembly 103 is movably disposed relative to the net trap assembly 100 to open and close the net trap opening 101. The lower end of the traction chain 1072 is connected to either the net trap assembly 100 or the gate assembly 103. The net trap assembly 100 and the gate... Components 103 are configured to have different sinking velocities in water by means of their overall average density and / or sinking resistance in the water. This allows the gate assembly 103 to automatically open the net trap opening 101 due to the sinking velocity difference between it and the net trap assembly 100 during the release of the traction chain 1072 to submerge the net trap device. Conversely, the gate assembly 103 automatically closes the net trap opening 101 due to the velocity difference between it and the net trap assembly 100 during the continuous lifting of the net trap device by rewinding the traction chain 1072. Furthermore, the gate assembly 103 remains closed after the net trap device is lifted out of the water. In this application, the overall average density of the net trap assembly refers to the ratio of the total mass of the net trap assembly as a whole to its total displacement volume; the overall average density of the gate assembly refers to the ratio of the total mass of the gate assembly as a whole to its total displacement volume. When the net trap assembly and the gate assembly differ in overall average density due to the use of different material densities, both need to sink in water. Their overall average density should be greater than that of water. According to the principle of buoyancy, the buoyant force they experience when submerged is less than their weight, allowing them to sink. The sinking speed, excluding the release speed of the traction chain, mainly depends on the difference between buoyancy and weight; the greater the difference, the faster the sinking. Based on this, a gate assembly 103 and a net trap assembly 100 can be designed to generate a speed difference when sinking in water, thereby automatically opening the net trap opening 101. Furthermore, depending on the needs, the gate assembly 103 and the net trap assembly 100 can be structurally designed to have different sinking speeds in water, similarly enabling the automatic opening of the net trap opening when both sink. As another working condition of the net trap device of this application, when the net trap device in the water is continuously lifted by winding the traction chain, the gate assembly can automatically close the net trap opening due to the speed difference between the gate assembly and the net trap assembly. Under this working condition, the speed difference between the gate assembly and the net trap assembly can automatically close the net trap opening mainly due to the traction effect of the traction chain. That is, the one being pulled is lifted faster than the other, while the other tends to maintain its original motion state under the action of inertia and water resistance. Therefore, the net trap device can generate a speed difference in the water and automatically close the net trap opening.Furthermore, once the net trap device is lifted out of the water, the net trap assembly or gate assembly remains closed due to gravity, preventing the net trap opening from opening after it leaves the water and affecting the transfer of fish. Therefore, when using the net trap device of this application for fishing activities, the net trap opening can be automatically opened and closed at different stages of operation, ensuring the smooth conduct of fishing activities such as attracting and observing fish and attracting them for trapping.

[0093] As the first, second, and third implementations of the mesh trap device, such as Figure 1 , 2 As shown in Figures 3, 4, and 6, the traction chain 1072 is connected to the gate assembly 103. The net trap opening 101 is located at the bottom of the net trap assembly 100. The gate assembly 103 is located below the net trap assembly 100. The overall average density of both the gate assembly 103 and the net trap assembly 100 is greater than the density of water. The overall average density of the gate assembly 103 is greater than the overall average density of the net trap assembly 100; or the overall average density of the gate assembly 103 is less than or equal to the overall average density of the net trap assembly 100, but the sinking resistance of the net trap assembly 100 should be greater than the sinking resistance of the gate assembly 103. During the process of releasing the traction chain 1072 to sink the net trap device into the water, the gate assembly 103 sinks relatively quickly relative to the net trap assembly 100, thereby automatically opening the net trap opening 101. As the traction chain 1072 continuously lifts the net trap device in the water, initially, the traction chain 1072 pulls the gate assembly 103 upwards relatively quickly relative to the net trap assembly 100 until the gate assembly 103 abuts against the net trap assembly 100, automatically closing the net trap opening 101. Then, the entire device moves out of the water simultaneously. In the net trap device of this application, the traction chain is connected to the gate assembly located at the bottom of the net trap assembly. When the traction chain is wound up for lifting, the lower end of the traction chain can quickly and responsively pull the gate assembly towards the net trap assembly, rapidly sealing the net trap opening and achieving effective baiting and trapping.

[0094] like Figure 6 As shown, the net trap assembly 100 is further configured to continue sinking after the traction chain 1072 stops unwinding and the gate assembly 103 stops sinking, or when the gate assembly 103's sinking speed is lower than that of the net trap assembly 100, until the lower fixing frame 108 abuts against the gate assembly 103 and automatically closes the net trap opening 101. In this scheme, as needed, the net trap assembly can be controlled to sink relatively slowly relative to the gate assembly during the release of the traction chain, and when the release of the traction chain stops or the speed of releasing the traction chain is controlled to be lower than the sinking speed of the net trap assembly, the net trap assembly continues to sink until it abuts against the gate assembly and automatically closes the net trap opening. This further increases the difficulty of luring and trapping, making fishing activities more challenging.

[0095] like Figure 5As shown, a flexible cable 1001 connects the net trap assembly 100 and the gate assembly 103 circumferentially. When the traction chain 1072 is released to submerge the net trap device in the water, the gate assembly 103 sinks relatively quickly relative to the net trap assembly 100 until the flexible cable 1001 is taut, causing the net trap opening 101 to open automatically. When the traction chain 1072 continuously lifts the gate assembly 103 in the water, initially the gate assembly 103 rises relatively quickly relative to the net trap assembly 100, while the flexible cable 1001 bends and relaxes until the gate assembly 103 abuts against the net trap assembly 100, automatically closing the net trap opening 101. Then, the entire assembly moves out of the water. In this design, the net trap device can be placed at different water depths for luring observation or trapping as needed by releasing the traction chain.

[0096] like Figure 3 As shown, the mesh trap assembly 100 includes an upper fixed frame 107 and a lower fixed frame 108. Mesh trap stops 109 are fixedly arranged between the upper fixed frame 107 and the lower fixed frame 108 and spaced apart. The minimum distance between two adjacent mesh trap stops 109 is set to 6cm, which is greater than the 5cm required by relevant regulations. The upper fixed frame 107 has a limiting through hole 1076 in the middle, through which the traction chain 1072 can slide. The shape of the limiting through hole 1076 is similar to but slightly larger than the cross-section of the traction chain 1072, so that the inner sidewall of the limiting through hole 1076 restricts the relative deflection of the traction chain 1072 passing through it, so that the mesh trap assembly 100 always remains directly above the gate assembly 103.

[0097] like Figure 3 As shown, a floating component 102 is connected to the lower fixed frame 108 or the net trap bar 109. The floating component 102 is equipped with a light source component 1111 and / or optionally connected to a second detection component 112. In this application, the first detection component 1074 and the second detection component 112 are cameras, and may also include a water quality sensor for detecting water quality and a sonar detector for detecting fish activity. When using this net trap device for fishing activities, it enables visual attraction and trapping or visual observation. Furthermore, the control of lighting can provide clearer real-time images for attraction and trapping, and the lighting effects can be controlled to increase fish aggregation. Therefore, people can observe the dynamics within the net trap device in real time, enhancing the interactivity and fun of the fishing experience and enriching people's fishing activities.

[0098] like Figure 7As shown, the floating assembly 102 is composed of multiple buoyancy components 105. The buoyancy components 105 are detachably connected to the lower fixed frame 108 or the net trap baffle 109 via buoyancy connecting seats 1052. The buoyancy connecting seat 1052 includes a buoyancy connecting T-shaped slot 1053 and a buoyancy elastic buckle 1054 with the opening of the buoyancy connecting T-shaped slot 1053. Correspondingly, the buoyancy component 105 has a buoyancy connecting T-shaped protrusion on the inner side of its end. Each buoyancy connecting seat 1052 can connect two buoyancy components 105 at the same time. The three buoyancy components 105 have rounded corners of 120° and are detachably connected via buoyancy connecting seats 1052, and are respectively surrounding the net trap assembly 100. By detachably connecting the buoyancy member 105 to the net trap assembly, the overall average density of the net trap assembly 100 relative to the gate assembly and the resistance to sinking in water are further changed, making the net trap opening smoother; and when the net trap assembly is wound up and lifted to close the net trap opening, the buoyancy member 105 will be subjected to water resistance, which further makes the net trap opening close more reliably.

[0099] like Figure 3 As shown, the gate assembly 103 includes a gate frame 1031 and a bottom net 1032 covering the gate frame 1031. A vertically arranged suspension rod 1033 is connected to the middle of the gate frame 1031. The upper end of the suspension rod 1033 is provided with a lifting lug 1071 for connecting to the lower end of the traction chain 1072. When a bionic fish pendant that releases fish-attracting odor is hung on the suspension rod 1033, the bionic fish pendant is brought close to the bottom net 1032 to better attract fish. When a bait feeding component is set above the net trap body, the bait fed by the bait feeding component can fall onto the bottom net 1032 to ensure the fish-attracting effect.

[0100] Furthermore, such as Figure 2 , 3 As shown in Figures 4 and 6, counterweight cables 1034 are evenly distributed around the bottom side of the gate assembly 103. The lower ends of each counterweight cable 1034 converge at the central axis of the gate assembly 103 and are connected to a counterweight 1035. The counterweight 1035 is preferably made of lead. In this scheme, by suspending the counterweight below the gate assembly located on the bottom side of the net trap assembly, when the traction chain is released, the gate assembly can sink faster relative to the net trap assembly and quickly open the net trap opening due to the gravity of the counterweight. Moreover, by evenly pulling the gate assembly with the counterweight cables, it can be ensured that the gate assembly maintains a basically horizontal state during sinking and lifting, making it easier to receive the bait to better attract fish. It can also ensure that the gate assembly closes the net trap opening as a whole, avoiding the phenomenon of incomplete closure.

[0101] As a fourth implementation of the wire trap device, such as Figure 12 , 13As shown in Figure 14, the bottom side of the net trap assembly 100 is connected to the net trap base frame 104 via the base frame connecting rod 1002. A net trap opening 101 is formed between the bottom side of the net trap assembly 100 and the net trap base frame 1003. The gate assembly 103 can slide up and down relative to the net trap assembly 100 to open and close the net trap opening 101. The lower end of the traction chain 1072 is connected to the upper part of the net trap assembly 100. In one embodiment, the overall average density of the gate assembly 103 is less than the overall average density of the net trap assembly 100, the overall average density of the net trap assembly 100 is greater than the density of water, and the overall average density of the gate assembly 103 is less than the density of water. In another embodiment, the overall average density of both the gate assembly 103 and the net trap assembly 100 is greater than the density of water, the overall average density of the gate assembly 103 is greater than or equal to that of the net trap assembly 100, and the sinking resistance of the net trap assembly 100 should be less than the sinking resistance of the gate assembly 103. In both schemes, when the traction chain 1072 is released to submerge the net trap device in the water, the gate assembly 103 slides upward relative to the net trap assembly 100, thereby automatically opening the net trap opening 101. As the net trap device is continuously lifted in the water by the traction chain 1072, the gate assembly 103 slides downward relative to the net trap assembly 100 until the gate assembly 103 closes the net trap opening 101, and then the entire device moves out of the water surface together. In this embodiment, the traction chain is connected to the net trap assembly, and the gate assembly is slidably connected to the net trap assembly. The overall average density of the gate assembly is less than that of the net trap assembly, or the overall average density of the gate assembly is greater than or equal to that of the net trap assembly, and the sinking resistance of the net trap assembly is less than that of the gate assembly. Therefore, when the net trap device sinks, the gate assembly slides upward relative to the net trap assembly and can automatically open the net trap opening from the side. When the net trap assembly is lifted, the gate assembly slides downward relative to the net trap assembly and can automatically close the net trap opening from the side. It also has the characteristics of convenient operation and can be used for induction observation or induction trapping.

[0102] Furthermore, in order to close the net trap opening more quickly, the gate assembly 103 is provided with an upward-facing water-blocking surface 1051. When the net trap device is continuously lifted in the water by the traction chain 1072, the water-blocking surface 1051 is resisted by the water, causing the gate assembly 103 to slide downward relative to the net trap assembly 100 until the gate assembly 103 closes the net trap opening 101. Then, the whole assembly is lifted together until it leaves the water surface.

[0103] like Figure 13As shown, the mesh trap assembly 100 includes an upper fixed frame 107 and a lower fixed frame 108. Mesh trap bars 109 are fixedly and intermittently provided between the upper fixed frame 107 and the lower fixed frame 108. The interval between two mesh trap bars 109 is set to 6 cm or more, which meets the minimum requirement of 5 cm required by relevant regulations. The upper fixed frame 107 is provided with a lifting lug 1071. The lower end of the traction chain 1072 is connected to the upper fixed frame 107 through the lifting lug 1071. The mesh trap assembly 100 also includes vertical guide rods 106 that are spaced apart from the adjacent mesh trap bars 109. The gate assembly 103 is slidably connected to the vertical guide rods 106. The upper end of the base frame connecting rod 1002 extends to form a vertical guide rod 106, or the base frame connecting rod 1002 and the vertical guide rod 106 are coaxially arranged. The gate assembly 103 includes a gate fixing frame 1041 and a gate stop rod 1042. The gate fixing frame 1041 is slidably connected to the vertical guide rod 106. The gate stop rod 1042 is spaced apart from the gate fixing frame 1041. A buoyancy member 105 is connected to the gate stop rod 1042 or the gate fixing frame 1041. A water-blocking surface 1051 is formed on the upper surface of the buoyancy member 105. A light source assembly 1111 is provided on the buoyancy member 105 or the net trap base frame 1003. The light source assembly 1111 can provide underwater illumination so that people can clearly observe the activity of fish from multiple angles and directions through the first and second detection components. Alternatively, the light source component 1111 can be configured to adjust different light modes to attract fish, thereby reducing the cost of feeding bait and improving the convenience of attracting fish.

[0104] like Figure 13As shown, the buoyancy component 105 is connected to the lower end of the gate stop 1042. Hollow first adjusting vertical tubes 1043 are spaced apart on the side of the gate stop 1042. The lower end of the first adjusting vertical tube 1043 is movably abutting against the buoyancy component 105. The first adjusting vertical tube 1043 is slidably connected to the gate fixing frame 1041. Second adjusting vertical rods 110, corresponding vertically to the first adjusting vertical tube 1043, are spaced apart on the side of the net trap stop 109. The upper end of the second adjusting vertical rod 110 is fixedly connected to the upper fixing frame 107. The upper end of the first adjusting vertical tube 1043 and the lower end of the second adjusting vertical rod 110 are slidably sleeved together, so that the first adjusting vertical tube 1043 can slide upward relative to the second adjusting vertical rod 110 to adjust the interval distance between the two gate stop 1042. By setting up a first and second adjustable vertical tube that can be extended and retracted, the interval between the two gate bars can be adjusted. In this scheme, when the original interval between the first adjustable vertical tube and the adjacent gate bar is set to 6cm, when the first adjustable vertical tube is slid upward, the interval between the adjacent gate bars can be switched to 12cm. Therefore, in the process of attracting and encircling fish, fish smaller than this interval can be released without injury. Before adjusting the interval between the gate bars, it already meets the requirements of relevant regulations. By designing it to be further adjustable, a targeted encirclement strategy of keeping larger fish and releasing smaller fish can be realized, making the operation conform to the sustainable fisheries policy and ensuring that the attracting and encircling fish can be carried out sustainably.

[0105] like Figure 13 As shown, the gate fixing frame 1041 is located outside the lower fixing frame 108, so that each gate stop bar 1042 and the corresponding net trap stop bar 109 are radially offset from each other. With this design, when the gate assembly 103 slides up and down along the vertical guide bar 106, it can avoid interference with the net trap stop bar 109 and the lower fixing frame 108 and avoid jamming, ensuring that the gate assembly 103 opens and closes the net trap opening 101 smoothly. Furthermore, the inner side of the buoyancy member 105 is provided with a shoulder 111 that abuts against and engages with the edge of the gate assembly 103 when the gate assembly 103 closes the net trap opening 101. Through the cooperation between the shoulder 111 and the edge of the gate assembly 103, the gate assembly 103 can better close the net trap opening 101, preventing the fish in the net trap body 100 from opening the gate assembly 103.

[0106] like Figure 14As shown, multiple net trap openings 101 are formed between the net trap assembly 100 and the net trap base 104. Preferably, the net trap body 100 is cylindrical, with the net trap openings 101 evenly distributed on its bottom side. Three net trap openings 101 are provided on the bottom side of the net trap body 100, and the central angle of each net trap opening 101 is 120°. Therefore, it can maximize the attraction of fish schools, enabling observation and trapping. Each net trap opening 101 is equipped with a gate assembly 103 and a buoyancy component 105. At least one of the buoyancy components 105 is optionally connected to a second detection assembly 112. The second detection assembly 112 is connected to the buoyancy component 105 via a detection card connector 1121. The second detection assembly 112 is rotatably and adjustably connected to a connecting support 1125. The connecting support 1125 is provided with a support T-shaped slot 1124, and the detection card connector 1121 is provided with a support... The detection T-shaped rail 1123 is fitted with a T-shaped slot 1124, and a detection barb 1122 is provided at the front end of the detection T-shaped rail 1123 to reliably engage the detection mounting base 1121 with the connecting support 1125. The second detection component 112 located on the buoyancy member 105 is configured to counteract the buoyancy of the gate assembly 103 and the buoyancy member 105 in the water, thereby keeping the corresponding gate assembly 103 closed. According to the needs of luring observation or luring trapping, the second detection component can be detachably installed on the corresponding buoyancy member, and the weight of the second detection component is used to counteract the buoyancy generated by the gate assembly and the buoyancy member in the water, thereby forcing the buoyancy member with the second detection component to act on the gate assembly to keep the corresponding net trap opening closed, while other buoyancy members without the second detection component act on their corresponding gate assembly to open the corresponding net trap opening.

[0107] In the mesh trap device of this application, such as Figure 19 As shown, the traction chain 1072 is internally equipped with an electrical control harness 1073 for electrical connection to corresponding functional components of the trap device. The traction chain 1072 is a tank drag chain structure, formed by connecting multiple links 1075. Adjacent links 1075 are hinged by a link pin 1076, allowing them to rotate only around the link pin 1076 and restricting their movement along the axial direction of the link pin 1076. This, in turn, restricts the traction chain 1072 from swinging along the axial direction of the link pin 1076. When under traction force, the entire weight of the trap device is borne by the traction chain 1072, preventing the electrical control harness 1073 from being stretched and affecting the transmission and control of electrical signals, thus ensuring reliable electrical connection.

[0108] Furthermore, such as Figure 22As shown, the link 1075 has a flat structure. The width of the link 1075 is configured to fit with the width of the winding groove 2031 of the reel 203, allowing the side walls of the winding groove 2031 to abut against the side walls of the wound link 1075 in the width direction, thereby restricting the traction chain 1072 from swinging axially along the link pin 1076. Therefore, using the traction chain 1072 restricts the swinging of the suspended gate assembly or net trap body along the link pin direction. Furthermore, configuring the link width to be comparable to the width of the winding groove of the reel allows the side walls of the traction chain wound in the winding groove to abut against the side walls of the winding groove, thereby restricting the swinging of the traction chain and net trap body in the unwound portion along the link pin direction. This provides a relatively stable working condition for luring and trapping and luring observation, and makes the visualization clearer.

[0109] like Figure 8-11 As shown in Figures 15-19 and 24, this application also provides a fishing device that employs the aforementioned automatically opening and closing net trap device. It includes a control platform 200, on which a support column 201 is rotatably connected. A 360° camera is mounted on the top of the support column 201 to observe the surrounding environment. A cantilever 202 is connected to the upper part of the support column 201. A reinforcing rod 2023 connects the middle of the cantilever 202 to the upper part of the support column 201. A signal receiving antenna 2022 is mounted on the cantilever 202. The outer end of the 202 is rotatably connected to a reel 203 with a winding groove 2031. A traction chain 1072 is wound around the winding groove 2031, and the lower end of the traction chain 1072 is connected to the net trap device. The fishing equipment also includes a catcher / discharge motor 204 for driving the reel 203 to rotate. The bottom of the control platform 200 is detachably electrically connected to a battery unit 208 with a heat-conducting shell. The upper part of the battery unit 208 is provided with a connecting guide post 2082 and an electrical connection terminal 2081 electrically connected to the bottom of the control platform 200. By configuring the battery unit with a heat-conducting shell, the heat generated by the battery unit can be quickly dissipated through heat exchange with the water during use, effectively avoiding the risk of the battery unit bulging or being damaged due to insufficient heat dissipation.

[0110] like Figure 19As shown, a fish basket 204 is connected to the side of the float body 206. The fish basket 204 is provided with a connecting arm 2041. A fish basket slot / rail structure 216 is provided between the rear side of the float body 206 and the connecting arm 2041, which can be detachably connected to each other. In the fishing equipment of this application, the support column and the control platform are automatically rotatably connected by a rotary drive motor 205. When the net trap device is lifted out of the water during the enticement and encirclement, the net trap device containing the fish can be directly rotated to the top of the corresponding fish basket by controlling the rotation of the support column. Then, the traction chain is released to sink the net trap device into the water of the fish basket, and the opening of the net trap is automatically opened without the need for additional power drive or operation, so that the fish automatically enter the fish basket. Therefore, this fishing equipment efficiently realizes the automatic and damage-free transfer of the fish into the fish basket and has the characteristics of convenient operation.

[0111] Specifically, the control platform 200 includes a pontoon body 206 and a fixed bracket 207 mounted on the pontoon body 206, as well as a 5G communication module 2063 mounted on the pontoon body 206. The support column 201 is rotatably connected to the fixed bracket 207. The pontoon body 206 is equipped with a rotary drive motor 205, which is driven by the support column 201. The outer end of the cantilever 202 is equipped with a winding wheel seat 2021, and the winding wheel 203 is rotatably connected to the winding wheel seat 2021. The retractor 204 is mounted on the winding wheel seat 2021 and driven by the winding wheel 203. Through the 5G communication module 2063, people can achieve visual luring observation or visual luring encirclement at the fishing grounds or remotely, further enriching fishing activities.

[0112] like Figure 15-20 As shown in Figures 24-26, the bottom side of the pontoon body 206 is provided with a propulsion power component 2065 for driving the control platform 200 to move in the water. The propulsion power component 2065 has been disclosed in the applicant's prior application CN202510492817.3, publication number CN120266818A, and is cited in this application; therefore, it will not be described again here. The pontoon body 206 is cylindrical, with a pontoon cover 2064 covering the upper part, and a buoyancy body 2062 is filled inside the pontoon body 206. A support leg 2066 is detachably connected to the bottom of the pontoon body 206 via a pontoon T-shaped slot and rail; Figure 24 , 25As shown, the float body 206 is rectangular, and a water-dividing head 2061 is provided at the front of the rectangular float body 206. By equipping the bottom of the float body with a propulsion assembly, it possesses maneuverability and flexibility, allowing people to control the fishing equipment to move in the water and obtain the optimal position for attracting and encircling or attracting and observing prey. Simultaneously, to facilitate control of the platform's movement in the water, the corresponding float body preferably has a water-dividing head at its front to reduce water resistance, enabling it to quickly reach the predetermined position.

[0113] like Figure 9 , 11 15-18, the fish-attracting component 400 comprises a bait feeding component 401 and a buoyancy block 402 disposed above the net trap component 100. The bait feeding component 401 is disposed on the buoyancy block 402 and can remain exposed above the water surface. The buoyancy block 402 is movably disposed relative to the net trap component 100, and when the net trap component 100 is submerged in water, the buoyancy block 402 is restricted to floating above the net trap component 100. The bait feeding component 401 is connected to a bait delivery pipe 4011, the lower end of which extends into or above the interior of the net trap component 100. The buoyancy block 402 has a central through hole 4021, through which the traction chain 1072 passes and is connected to the net trap component 100. The buoyancy block 402 is configured to cover the upper end of the net trap component 100 when the net trap component 100 is out of the water surface. As for the bait feeding component 401, it is the fish-attracting device disclosed in the applicant's earlier application CN202510568618.6, and is also cited in this application, publication number CN120266787A, and will not be described in detail here. By movably setting a buoyancy block above the net trap body, and having the lower end of the traction chain pass through the central through hole on the buoyancy block and connect to the net trap body or gate assembly, the buoyancy block 402 is confined above the net trap device, ensuring reliable and effective bait feeding. Moreover, by utilizing the buoyancy generated by this buoyancy block, the bait feeding component can be kept exposed above the water surface during attraction observation or attraction and trapping operations, which can prevent the bait feeding component and the bait filled inside from being soaked in water for a long time, thus affecting the attraction effect. In addition, during the entrapment and trapping operation, when the traction chain is wound up and the net trap device is lifted out of the water, the buoyancy block can cover the upper opening of the net trap assembly to prevent the fish inside the net trap assembly from jumping out of the upper opening.

[0114] like Figure 26 As shown, the fish-attracting component 400 is a biomimetic fish pendant 403 that is suspended and located inside the net trap component 100 and can release fish-attracting odors. As a minimalist design scheme of the fishing equipment of this application, people can carry out luring and trapping or luring and observing as needed, making the operation more convenient.

[0115] like Figure 27-29As shown, as another solution to the fishing equipment of this application, it is suitable for large water areas, such as lakes, reservoirs or nearshore areas, etc. It adopts the above-mentioned automatic opening and closing net trap, including a hull 300, a buoyancy platform 301 connected to the circumference of the hull 300, the hull 300 and the buoyancy platform 301 are connected by a connecting component 302, a ladder frame 303 is connected between the hull 300 and the buoyancy platform 301, a support component 304 is provided on the buoyancy platform 301, a reel 203 with a winding groove 2031 is rotatably connected to the outer end of the support component 304, a traction chain 1072 is wound on the winding groove 2031, and a net trap device is suspended at the lower end of the traction chain 1072. The outer end of the support component 304 is also provided with a retractor 204 for driving the reel 203 to rotate. In this embodiment, the hull 300, buoyancy platform 301, connecting assembly 302, support assembly 304 and ladder 303 have been disclosed in the applicant's prior application CN202510995625.4, and are accordingly referenced in this embodiment, with the corresponding publication number CN120713097A, and will not be described again here.

[0116] This solution connects a buoyancy platform to the hull and builds a support assembly on the buoyancy platform. It also constructs a ladder between the hull and the buoyancy platform to facilitate movement between them. The net trap device of this application is suspended from the outer end of the support assembly by a reel. Therefore, it can further expand people's fishing activities in large bodies of water, enabling them to also have the function of attracting and encircling or attracting observation, thus solving the shortcomings of conventional fishing equipment that is difficult or inconvenient to carry out fishing activities in large bodies of water.

[0117] Fishing methods employing the aforementioned fishing equipment include both induction observation and induction encirclement operations. Particularly in the induction encirclement operation, by adjusting the interval between adjacent gate barriers, a targeted strategy of releasing smaller fish and keeping larger ones in the enclosure can be achieved. This also enriches the fishing methods, including:

[0118] S1. Release the traction chain 1072 to sink the net trap device into the water, so that the gate assembly 103 and the net trap assembly 100 move relative to each other during the sinking process and automatically open the net trap opening 101. In this step, people can stop releasing the traction chain at different water depths as needed in order to lure and observe or lure and trap fish at different water depths.

[0119] S2. Activate the fish attraction component 400 and accordingly put bait into the net trap component 100 or release fish attraction scent to lure fish into the net trap opening 101 and gather there.

[0120] S3. Activate the first detection component 1074 set on the net trap assembly 100 and / or activate the second detection component 112 set on the buoyancy component 105, and display the images detected by the first detection component 1074 and / or the second detection component 112 in real time on a wired or wireless terminal to observe the fish active in the net trap opening 101. That is, people can observe the fish active in the net trap opening 101 at the edge of the fishery or remotely through the 5G communication module 2063.

[0121] By following steps S1-3 above, visual induction and observation can be achieved. If visual encirclement is required, continue after step S3:

[0122] S4. Based on the image from step S3, determine the fish that have entered the net trap opening 101. When the number, size, and / or species of fish entering the net trap opening 101 reach the expected level, the winding traction chain 1072 continuously lifts the net trap device upwards, causing the gate assembly 103 to move at a differential speed relative to the net trap assembly 100 until the net trap opening 101 automatically closes in the water. Afterwards, the net trap assembly 100 and the gate assembly 103 move together and are lifted until they leave the water surface. When the entire net trap device leaves the water surface, the net trap assembly 100 or the gate assembly 103 remains closed under the action of gravity.

[0123] S5. After the net trap device is lifted off the water surface at the preset height, first rotate the support column 201 and rotate the net trap device to be above the fish basket 204. Then release the traction chain 1072 so that the net trap device descends and sinks into the fish basket 204. The gate assembly 103 sinks at a different speed relative to the net trap assembly 100, so that the net trap opening 101 opens automatically, and finally the fish are released into the fish basket 204.

[0124] S8. The retracting traction chain 1072 continuously lifts the net trap device, causing the net trap opening 101 to close automatically. The entire net trap device is removed from the water surface at a preset height where the fish guard 204 is located, completing the visual and harmless attraction and capture.

[0125] When conducting visual encirclement and trapping using this fishing method, net trap devices with different densities can be selected in advance. For example, when using a net trap device with the fourth embodiment structure of this application, the first adjusting vertical pipe on the gate assembly can be retracted relative to the second adjusting vertical rod to increase the distance between adjacent gate rods, thereby enabling precise trapping of fish at different water layers and meeting the sustainable trapping requirements of catching large fish and releasing small fish.

[0126] In summary, this application expands the visualization and observation application of net trap devices in recreational fishing, enabling high-definition, close-up observation of recreational fishing scenes from a two-dimensional or three-dimensional perspective. Furthermore, the net trap device is equipped with visualization, electrically controlled lifting, and adjustable interval functions, making it suitable for various aquatic environments with a depth of at least 5 meters, including lakes, reservoirs, nearshore sea areas, and relatively slow-flowing river sections. In these waters, especially open waters, a grid-like, large-space artificial ecological propagation and release system can be constructed, and through scientific planning and ecological regulation, a recyclable and sustainable three-dimensional stratified aquaculture farm can be formed. This proposed solution can be applied year-round and around the clock in recyclable and sustainable three-dimensional stratified aquaculture farms, breaking through the traditional fisheries' reliance on seasonal fishing moratorium policies. It organically integrates fishing production with fishing activities, and utilizes intelligent visual technology to achieve real-time luring observation and luring and trapping during fishing activities, greatly enhancing the viewing, experience, and entertainment participation of fishing activities. By empowering fisheries production with visualization and fishing recreation, it forms a sustainable and healthy recreational fisheries base, realizing a high-quality synergistic development model of fisheries production recreation and cultural tourism.

Claims

1. A mesh trap device capable of automatic opening and closing, characterized in that... The device includes a hollow mesh trap assembly (100), a gate assembly (103), and a traction chain (1072). The mesh trap assembly (100) is provided with a first detection component (1074) for detecting the interior of the mesh trap assembly (100). The mesh trap assembly (100) has a mesh trap opening (101). The gate assembly (103) is movably disposed relative to the mesh trap assembly (100) to open and close the mesh trap opening (101). The lower end of the traction chain (1072) is connected to either the mesh trap assembly (100) or the gate assembly (103). The mesh trap assembly (100) and the gate assembly (103) are connected by an overall average... The density and / or sinking resistance in the water are configured to have different sinking speeds relative to each other in the water, so that when the traction chain (1072) is released to sink the net trap device into the water, the gate assembly (103) and the net trap assembly (100) generate a sinking speed difference and automatically open the net trap opening (101), and when the traction chain (1072) is wound up to continuously lift the net trap device in the water, the gate assembly (103) generates a speed difference relative to the net trap assembly (100) and automatically closes the net trap opening (101), and after the net trap device is lifted out of the water, the gate assembly (103) remains closed to close the net trap opening (101).

2. The automatically opening and closing mesh trap device according to claim 1, characterized in that... The traction chain (1072) is connected to the gate assembly (103). The net trap opening (101) is located at the bottom of the net trap assembly (100). The gate assembly (103) is located below the net trap assembly (100). The overall average density of the gate assembly (103) is greater than the overall average density of the net trap assembly (100). When the traction chain (1072) is released to sink the net trap device into the water, the gate assembly (103) sinks relatively quickly relative to the net trap assembly (100), thereby causing the net trap opening (101) to open automatically. When the traction chain (1072) continuously lifts the net trap device located in the water, in the initial stage, the traction chain (1072) pulls the gate assembly (103) to rise relatively quickly relative to the net trap assembly (100) until the gate assembly (103) abuts against the net trap assembly (100) and automatically closes the net trap opening (101). Then, the whole assembly moves out of the water surface together.

3. The mesh trap device capable of automatic opening and closing according to claim 2, characterized in that... The net trap assembly (100) is also configured to continue sinking after the traction chain (1072) stops unwinding and the gate assembly (103) stops sinking, or when the gate assembly (103) is lower than the sinking speed of the net trap assembly (100), until the lower fixing frame (108) abuts against the gate assembly (103) and automatically closes the net trap opening (101).

4. The mesh trap device capable of automatic opening and closing according to claim 2, characterized in that... A flexible cable (1001) is circumferentially connected between the net trap assembly (100) and the gate assembly (103). When the traction chain (1072) is released to sink the net trap device into the water, the gate assembly (103) sinks relatively quickly relative to the net trap assembly (100) until the flexible cable (1001) is straightened and tightened, thereby causing the net trap opening (101) to open automatically. When the traction chain (1072) continuously lifts the gate assembly (103) located in the water, the gate assembly (103) rises relatively quickly relative to the net trap assembly (100) in the initial stage, while the flexible cable (1001) bends and relaxes until the gate assembly (103) abuts against the net trap assembly (100) and automatically closes the net trap opening (101), and then the whole assembly moves out of the water surface together.

5. A wire trap device capable of automatic opening and closing according to any one of claims 2-4, characterized in that... The net trap assembly (100) includes an upper fixed frame (107) and a lower fixed frame (108). The upper fixed frame (107) and the lower fixed frame (108) are fixed relative to each other and spaced apart by net trap stops (109). The upper fixed frame (107) has a limiting through hole (1076) in the middle, through which the traction chain (1072) can slide. The inner wall of the limiting through hole (1076) restricts the relative deflection of the traction chain (1072) passing through it, so that the net trap assembly (100) always remains directly above the gate assembly (103).

6. The mesh trap device capable of automatic opening and closing according to claim 5, characterized in that... A floating component (102) is connected to the lower fixed frame (108) or the mesh trap bar (109), and a light source component (1111) and / or a second detection component (112) may be connected to the floating component (102).

7. The mesh trap device capable of automatic opening and closing according to claim 6, characterized in that... The floating component (102) is composed of multiple buoyancy components (105), which are detachably connected to the lower fixed frame (108) or the net trap bar (109) via buoyancy connecting seat (1052).

8. A wire trap device capable of automatic opening and closing according to any one of claims 2-4, characterized in that... The gate assembly (103) includes a gate frame (1031) and a bottom net (1032) covering the gate frame (1031). A vertically arranged auger (1033) is connected to the middle of the gate frame (1031). The upper end of the auger (1033) is provided with a lifting lug (1071) for connecting to the lower end of the traction chain (1072).

9. A wire trap device capable of automatic opening and closing according to any one of claims 2-4, characterized in that... The gate assembly (103) is circumferentially connected with counterweight cables (1034) on its bottom side, and the lower ends of each counterweight cable (1034) converge at the central axis of the gate assembly (103) and are connected to a counterweight body (1035).

10. The mesh trap device capable of automatic opening and closing according to claim 1, characterized in that... The bottom side of the mesh trap assembly (100) is connected to the mesh trap base frame (104) via a base frame connecting rod (1002). A mesh trap opening (101) is formed between the bottom side of the mesh trap assembly (100) and the mesh trap base frame (1003). The gate assembly (103) can slide up and down relative to the mesh trap assembly (100) to open and close the mesh trap opening (101). The lower end of the traction chain (1072) is connected to the upper part of the mesh trap assembly (100). The overall average density of the gate assembly (103) is less than that of the mesh trap assembly. (100) Overall average density, when the traction chain (1072) is released to sink the net trap device into the water, the gate assembly (103) slides upward relative to the net trap assembly (100), thereby automatically opening the net trap opening (101), and when the net trap device is continuously lifted in the water by the traction chain (1072), the gate assembly (103) slides downward relative to the net trap assembly (100) until the gate assembly (103) closes the net trap opening (101), and then the whole device moves out of the water surface together.

11. The automatically opening and closing mesh trap device according to claim 10, characterized in that... The gate assembly (103) is provided with an upward-facing water-blocking surface (1051). When the net trap device is continuously lifted in the water by the traction chain (1072), the water-blocking surface (1051) is subjected to water resistance, causing the gate assembly (103) to slide downward relative to the net trap assembly (100) until the gate assembly (103) closes the net trap opening (101), and then the whole assembly is lifted together until it leaves the water surface.

12. The automatically opening and closing mesh trap device according to claim 10, characterized in that... The net trap assembly (100) includes an upper fixed frame (107) and a lower fixed frame (108). Net trap stops (109) are fixed relative to each other and spaced apart. The upper fixed frame (107) is provided with a lifting lug (1071). The lower end of the traction chain (1072) is connected to the upper fixed frame (107) through the lifting lug (1071). The net trap assembly (100) also includes a vertical guide rod (106) spaced apart from the adjacent net trap stops (109). The gate assembly (103) is slidably connected to the vertical guide rod (106).

13. The mesh trap device capable of automatic opening and closing according to claim 12, characterized in that... The upper end of the base frame connecting rod (1002) extends to form a vertical guide rod (106), or the base frame connecting rod (1002) and the vertical guide rod (106) are coaxially arranged. The gate assembly (103) includes a gate fixing frame (1041) and a gate stop rod (1042). The gate fixing frame (1041) is slidably connected to the vertical guide rod (106). The gate stop rod (1042) is connected to the gate fixing frame (1041) at intervals. A buoyancy member (105) is connected to the gate stop rod (1042) or the gate fixing frame (1041). A water-blocking surface (1051) is formed on the upper surface of the buoyancy member (105). A light source assembly (1111) is provided on the buoyancy member (105) or the net trap base frame (1003).

14. The automatically opening and closing mesh trap device according to claim 13, characterized in that... The buoyancy component (105) is connected to the lower end of the gate stop (1042). Hollow first adjusting vertical tubes (1043) are provided at intervals on the side of the gate stop (1042). The lower end of the first adjusting vertical tube (1043) can movably abut against the buoyancy component (105). The first adjusting vertical tube (1043) is slidably connected to the gate fixing frame (1041). Second adjusting vertical rods (110) corresponding to the first adjusting vertical tube (1043) are provided at intervals on the side of the net trap stop (109). The upper end of the second adjusting vertical rod (110) is fixedly connected to the upper fixing frame (107). The upper end of the first adjusting vertical tube (1043) and the lower end of the second adjusting vertical rod (110) are slidably sleeved together, so that the first adjusting vertical tube (1043) can slide upward relative to the second adjusting vertical rod (110) to adjust the interval distance between the two gate stops (1042).

15. The automatically opening and closing mesh trap device according to claim 14, characterized in that... The gate fixing frame (1041) is located outside the lower fixing frame (108) such that each gate stop (1042) and the corresponding net trap stop (109) are radially offset from each other. The buoyancy member (105) has a shoulder (111) on the inside that abuts against the edge of the gate assembly (103) when the gate assembly (103) closes the net trap opening (101).

16. The mesh trap device capable of automatic opening and closing according to claim 13, characterized in that... A plurality of net trap openings (101) are formed between the net trap assembly (100) and the net trap base (104). Each net trap opening (101) is provided with a gate assembly (103) and a buoyancy member (105). At least one of the buoyancy members (105) is optionally connected to a second detection assembly (112). The second detection assembly (112) located on the buoyancy member (105) is configured to counteract the buoyancy of the gate assembly (103) and the buoyancy member (105) in the water, thereby keeping the corresponding gate assembly (103) closed.

17. The mesh trap device capable of automatic opening and closing according to claim 1, characterized in that... The traction chain (1072) is internally provided with an electrical control harness (1073) for electrical connection to the corresponding functional components of the net trap device. The traction chain (1072) is formed by connecting multiple links (1075). Adjacent links (1075) are hinged by a link pin (1076), so that adjacent links (1075) can only rotate around the link pin (1076) and restrict the movement of adjacent links (1075) along the axial direction of the link pin (1076), thereby restricting the traction chain (1072) from swinging along the axial direction of the link pin (1076).

18. The mesh trap device capable of automatic opening and closing according to claim 17, characterized in that... The link (1075) has a flat structure, and the width of the link (1075) is configured to fit with the width of the winding groove (2031) of the winding wheel (203), so that the two side walls of the winding groove (2031) can abut against the side wall of the winding link (1075) in the width direction, thereby restricting the traction chain (1072) from swinging axially along the link pin (1076).

19. A fishing recreational device, characterized in that... The automatic opening and closing net trap device according to any one of claims 1-18 includes a control platform (200), a support column (201) rotatably connected to the control platform (200), a cantilever (202) connected to the upper part of the support column (201), and a winding wheel (203) with a winding groove (2031) rotatably connected to the outer end of the cantilever (202), and a traction chain (1072) wound on the winding groove (2031). The lower end of the traction chain (1072) is connected to the net trap device. The fishing equipment also includes a retractor (204) for driving the reel (203) to rotate. The bottom of the control platform (200) is detachably electrically connected to a battery unit (208) with a heat-conducting shell. A fish-attracting component (400) is provided above or inside the net trap assembly (100). The fish-attracting component (400) is configured to release bait or fish-attracting odor into the net trap assembly (100).

20. A fishing recreational device according to claim 19, characterized in that... The control platform (200) is connected to a fish basket (204). The control platform (200) is equipped with a rotary drive motor (205) for driving the support column (201) to rotate relative to the control platform (200), so that the net trap device, which is detached from the water surface at a preset height, rotates to the top of the fish basket (204). When the net trap device is placed into the fish basket (204) and sinks into the water, the net trap opening (101) automatically opens to release the fish.

21. A fishing recreational device according to claim 19, characterized in that... The control platform (200) includes a pontoon body (206) and a fixed bracket (207) on the pontoon body (206). The support column (201) is rotatably connected to the fixed bracket (207). A rotary drive motor (205) is provided on the pontoon body (206). The rotary drive motor (205) is connected to the support column (201) in a transmission connection. A take-up wheel seat (2021) is provided at the outer end of the cantilever (202). The take-up wheel (203) is rotatably connected to the take-up wheel seat (2021). The take-up and discharge motor (204) is provided on the take-up wheel seat (2021) and is connected to the take-up wheel (203) in a transmission connection.

22. The fishing recreation equipment according to claim 19, characterized in that... The control platform (200) includes a pontoon body (206), and the bottom side of the pontoon body (206) is provided with a propulsion power component (2065) for driving the control platform (200) to move in the water. The pontoon body (206) is cylindrical; or the pontoon body (206) is cuboid, and the cuboid pontoon body (206) is provided with a water-dividing head (2061) at the front.

23. The fishing recreation equipment according to claim 19, characterized in that... The fish-attracting component (400) consists of a bait feeding component (401) and a buoyancy block (402) disposed above the net trap component (100). The bait feeding component (401) is disposed on the buoyancy block (402) and can remain exposed above the water surface. The buoyancy block (402) is movably disposed relative to the net trap component (100), and when the net trap component (100) is submerged in the water, the buoyancy block (402) is restricted to float above the net trap component (100). The bait feeding component (401) is connected to a bait delivery pipe (4011), and the lower end of the bait delivery pipe (4011) extends into or above the interior of the net trap component (100).

24. The fishing recreation equipment according to claim 23, characterized in that... The buoyancy block (402) has a central through hole (4021), through which the traction chain (1072) passes and is connected to the net trap assembly (100), and the buoyancy block (402) is configured to cover the upper end of the net trap assembly (100) when the net trap assembly (100) is out of the water.

25. The fishing recreation equipment according to claim 19, characterized in that... The fish-attracting component (400) is a biomimetic fish pendant (403) that is suspended and located inside the net trap component (100) and can release fish-attracting odors.

26. A fishing recreational device, characterized in that... The automatic opening and closing net trap device according to any one of claims 1-18 includes a hull (300), with buoyancy platforms (301) connected to the bow and stern of the hull (300). The hull (300) and the buoyancy platforms (301) are connected by a connecting component (302). A ladder frame (303) is erected between the hull (300) and the buoyancy platforms (301). A support assembly (304) is provided on the buoyancy platforms (301), and a winding mechanism is rotatably connected to the outer end of the support assembly (304). The winding wheel (203) of the winding groove (2031) is wound with a traction chain (1072), and the lower end of the traction chain (1072) is suspended with a net trap device that can be automatically opened and closed. The outer end of the support assembly (304) is also provided with a retractor (204) for driving the winding wheel (203) to rotate. A fish attracting assembly (400) is provided above or inside the net trap assembly (100), and the fish attracting assembly (400) is configured to put bait into the net trap assembly (100) or release fish attracting scent.

27. A fishing fun method (visualized induced observation), characterized in that... The fishing recreational equipment according to any one of claims 18-25 comprises: S1. Release the traction chain (1072) and sink the net trap device into the water, so that the gate assembly (103) and the net trap assembly (100) move relative to each other during the sinking process and automatically open the net trap opening (101). S2. Activate the fish attraction component (400) and accordingly put bait into the net trap component (100) or release fish attraction odor to lure fish into the net trap opening (101) and gather them. S3. Activate the first detection component (1074) set on the net trap assembly (100) and / or activate the second detection component (112) set on the buoyancy component (105), and display the images detected by the first detection component (1074) and / or the second detection component (112) in real time on a wired or wireless terminal to observe the fish active in the net trap opening (101).

28. A fishing method (visualized enticement and trapping) according to claim 27, characterized in that... Following step S3, the following is also included: S4. Based on the image from step S3, determine the fish that have entered the net trap opening (101). When the number, size, and / or species of fish that have entered the net trap opening (101) reach the expected level, retract the traction chain (1072) to continuously lift the net trap device upwards, causing the gate assembly (103) to move at a different speed relative to the net trap assembly (100) until the net trap opening (101) is automatically closed in the water. Then, the net trap assembly (100) and the gate assembly (103) are lifted together until they leave the water surface. When the entire net trap device leaves the water surface, the net trap assembly (100) or the gate assembly (103) remains closed under the action of gravity. S5. After the net trap device is lifted off the water surface at the preset height, first rotate the support column (201) and rotate the net trap device to be above the fish basket (204). Then release the traction chain (1072) so that the net trap device descends and sinks into the fish basket (204). The gate assembly (103) sinks at a different speed relative to the net trap assembly (100) so that the net trap opening (101) opens automatically, and finally the fish are released into the fish basket (204). S8. The net trap device is continuously lifted by winding the traction chain (1072), so that the net trap opening (101) is automatically closed and the entire net trap device is removed from the water surface at the preset height where the fish guard (204) is located, thus completing the visual and harmless attraction and capture.

Images