An amphibious netting system

Abstract

The application discloses a water and land dual-purpose net catching system, the fishing net is connected to a rotating disc, and the folded fishing net is bound to the rotating disc through a binding assembly to rotate with the rotating disc, the rotating of the rotating disc does not need manpower driving, when the rotating disc rotates to a preset rotating speed, the binding assembly can actively or passively loosen the fishing net under the action of centrifugal force of the fishing net, the fishing net is correspondingly opened to form a net catching space, and target objects are easily and efficiently caught, therefore, the application is not limited to use in the fishery field, and can also be applied to the catching of target objects on land and the catching and cleaning of solid floating pollutants on water surfaces such as seas, lakes and rivers in the environmental protection field, and the traditional net catching operation mode is improved, and the net catching efficiency is improved.

Description

Technical Field

[0001] This invention relates to net-catching systems, and more particularly to an amphibious net-catching system. Background Technology

[0002] Traditional net fishing is widely used primarily in the fisheries sector. In recent years, with increasing emphasis on environmental protection, net fishing has also been applied to the retrieval of solid floating debris in rivers, lakes, and oceans. Additionally, net fishing is used to capture land-based targets. For the former two methods, the implementation typically involves manual net casting or boat-drawn nets, while the latter mainly relies on manual net casting. Therefore, these net fishing methods still suffer from high costs, low efficiency, and heavy labor, especially the inaccuracy of manual net casting.

[0003] With the development and progress of technology, net trapping should have better operating methods and net trapping systems. This invention addresses the problems existing in the prior art and is therefore proposed. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide an amphibious net-catching system. The fishing net is connected to a rotating disc, and the folded fishing net is tied to the rotating disc by a binding assembly, causing it to rotate. The rotation of the rotating disc does not require manual driving. When the rotating disc rotates to a preset speed, the binding assembly can actively or passively loosen the fishing net under the action of centrifugal force, and the fishing net will open accordingly to form a net-catching space, easily and efficiently capturing the target object. Therefore, this invention is not limited to use in the fishery field, but can also be applied to the capture of target objects on land, and to the environmental protection field for the capture and cleanup of solid floating pollutants on the surface of oceans, lakes, rivers, etc., improving the traditional net-catching operation method and increasing the efficiency of net-catching.

[0005] To solve the above-mentioned technical problems, the present invention provides an amphibious net-catching system, comprising a fishing net and a rotating disk that can rotate around its own axis. The fishing net has a connecting part and a free part. The fishing net is connected to the rotating disk through the connecting part, and the free part of the fishing net is provided with a counterweight. The fishing net is characterized in that after being folded, it is bound to the rotating disk by a binding assembly and rotates with the rotating disk. After the fishing net is folded, the free part of the fishing net and the counterweight are located on the outside. When the rotating disk rotates to a preset speed, the binding assembly automatically or passively loosens the fishing net, and the counterweight flies out along the circumferential tangential direction of the rotating disk, so that the fishing net opens under the traction of the counterweight to form a net-catching space.

[0006] A tray for supporting the folded fishing net is formed circumferentially on the outer side of the rotating disk, and the outer edge of the tray is raised to prevent the folded fishing net from scattering; the rotating disk can float on the water surface and is connected to a float, which is a rubber ring fitted around the outer circumference of the rotating disk, and the rubber ring is inflated and tightly connected to the fishing net; a central hanger is coaxially connected to the inner side of the rotating disk, and a clutch connection part is formed at the upper end of the central hanger; the amphibious net fishing system also includes a coaxial rotorcraft or a multi-rotorcraft, and the bottom of the coaxial rotorcraft and the multi-rotorcraft is provided with an adapter for detachable connection with the clutch connection part;

[0007] The connecting part of the fishing net is fitted onto the rotating disk and fixedly connected to it. At the corresponding position of the connection between the rotating disk and the fishing net, an anti-slip structure is provided to prevent the fishing net from rotating relative to the rotating disk. Before the net is spread, the fishing net is folded back and forth in an orderly manner and then tied to the rotating disk by the binding assembly, and can rotate with the rotating disk. The weight of the folded fishing net is evenly distributed around the circumference of the rotating disk. When the rotating disk rotates around its central axis to a preset speed, the binding assembly automatically or passively loosens the fishing net, and the counterweight flies out along the tangent of the circumference of the rotating disk, so that the fishing net is spread open under the traction of the counterweight to form a net-catching space. The fishing net is circular when it is spread open, and when the fishing net is spread to its maximum area, it pulls the rotating disk to reduce the rotation speed.

[0008] The rotating disk is equipped with a turbofan, which accelerates the rotation of the rotating disk when it is in free fall in the air. When the rotating disk rotates to a preset speed, the binding component actively or passively loosens the fishing net, so that the fishing net opens under the traction of the counterweight to form a net trapping space.

[0009] The inner ring of the float is provided with a float support, and the float support is provided with a rechargeable battery and a power mechanism electrically connected to the rechargeable battery. When the adapter is disengaged from the clutch connection and the rotating disk floats on the water surface, the power mechanism is used to drive the rotating disk to rotate relative to the float in a timely manner.

[0010] The bottom of the float is equipped with a damping baffle. When the rotating disk floats on the water surface through the float and the power mechanism drives the rotating disk, the damping baffle causes the rotating disk to rotate relative to the float through the reaction force of the water.

[0011] As described above, in an amphibious net-catching system, when a coaxial rotorcraft hovers and spins in place, it is connected to a clutch via an adapter to drive a rotating disc to rotate around its central axis.

[0012] As described above, in an amphibious net-catching system, the multi-rotor aircraft is provided with a rotating disk drive mechanism at its bottom. The power output end of the rotating disk drive mechanism is provided with an adapter that can be detachably connected to the clutch connection part. The multi-rotor aircraft is connected to the clutch connection part through the adapter and drives the rotating disk to rotate around its central axis through the rotating disk drive mechanism.

[0013] As described above, in an amphibious net-catching system, the floating support is equipped with a generator for charging a rechargeable battery, and the floating body has a hollow structure that stores fuel for supplying the generator.

[0014] As described above, in an amphibious net fishing system, a plurality of oil-separating plates are evenly spaced within the float, and the oil-separating plates are provided with slow-flow holes for the smooth flow of fuel between adjacent sections of the oil-separating plates.

[0015] As described above, in an amphibious net fishing system, a catch line is threaded around the free part of the fishing net in the circumferential direction, and a submersible catcher is provided on the free part of the fishing net for winding the catch line to close the free part of the fishing net.

[0016] As described above, in an amphibious net-catching system, the bottom of the floating support is equipped with a periscope and / or a sonar fish detector.

[0017] As described above, in an amphibious net fishing system, the bottom of the floating support is equipped with a spotlight and / or a bait feeding box.

[0018] As described above, in an amphibious net-catching system, the binding assembly includes an electromagnetic adsorption device and a binding strap that are fixedly connected to the inside of a rotating disk. One end of the binding strap is fixedly connected to the rotating disk or the electromagnetic adsorption device, and the other end of the binding strap is provided with a magnetic conductor for magnetic adsorption by the electromagnetic adsorption device. Alternatively, the binding assembly is a binding strap with a Velcro adhesive structure. After the fishing net is folded, it is bound to the rotating disk by the binding strap. When the rotating disk rotates to a preset speed, the fishing net and the counterweight overcome the Velcro adhesive force and loosen the fishing net, so that the fishing net opens under the traction of the counterweight to form a net-catching space.

[0019] This invention also provides an amphibious net-catching system, comprising a fishing net and a rotating disk rotatable about its own axis. The rotating disk is connected to a float that can float on the water surface. The float is a rubber ring fitted around the outer circumference of the rotating disk, and the rubber ring is inflated and tightly connected to the fishing net. The fishing net has a connecting part and a free part. The fishing net is connected to the rotating disk through the connecting part, and the free part of the fishing net is provided with a counterweight. After being folded, the fishing net is tied to the rotating disk by a binding assembly and rotates with the rotating disk. After being folded, the free part of the fishing net and the counterweight are located on the outer side. The amphibious net-catching system also includes a rotating column and... The flexible drive belt has a support manipulator on the rotating column to support the rotating disk. The rotating disk has an annular groove along its circumference. One end of the flexible drive belt is fixedly connected to the support manipulator and rotates with the rotating column. The other end of the flexible drive belt is used to wrap around the annular groove of the rotating disk on the support manipulator. When the rotating column drives the support manipulator and the rotating disk to rotate and throws the rotating disk out, the rotating disk will rotate under the pull of the flexible drive belt. When the rotating disk rotates to a preset speed, the binding assembly automatically or passively loosens the fishing net, so that the fishing net opens under the traction of the counterweight to form a net trapping space.

[0020] A tray for supporting the folded fishing net is formed circumferentially on the outer side of the rotating disk, and the outer edge of the tray is raised to prevent the folded fishing net from falling. The rotating disk is equipped with a turbine fan, which accelerates the rotation of the rotating disk when it is in free fall in the air. When the rotating disk rotates to a preset speed, the binding assembly automatically or passively loosens the fishing net, so that the fishing net opens under the traction of the counterweight to form a net-catching space.

[0021] The connecting part of the fishing net is fitted onto the rotating disk and fixedly connected to it. An anti-slip structure is provided at the corresponding position of the connection between the rotating disk and the fishing net to prevent the fishing net from rotating relative to the rotating disk. Before the net is spread, it is folded back and forth in an orderly manner and then bound to the rotating disk by a binding assembly, allowing it to rotate with the rotating disk. The weight of the folded net is evenly distributed around the circumference of the rotating disk. When the rotating disk rotates around its central axis to a preset speed, the binding assembly automatically or passively releases the fishing net, and the counterweight flies out along the tangent of the rotating disk's circumference. This causes the fishing net to spread under the traction of the counterweight, forming a netting space. The net is circular when spread, and when the net has spread to its maximum area, it pulls on the rotating disk, reducing its rotation speed.

[0022] As described above, in an amphibious net-catching system, a float is connected to the rotating disk, and a central hanger is coaxially connected to the inner side of the rotating disk and the central hanger, with a clutch connection portion formed at the upper end of the central hanger.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. Suitable for rapid and efficient netting operations on static or dynamic targets on water and land;

[0025] 2. No manual net throwing is required; instead, the net is automatically thrown using the corresponding rotation speed of the rotating disc, reducing the intensity of physical labor.

[0026] 3. It can accurately cast nets at fixed points over long distances to capture targets, avoiding the inefficient phenomenon of blind casting;

[0027] 4. When applied in fisheries, the invention can monitor fish schools in nearby waters using periscopes and sonar fish detectors, and can lure and capture fish schools using spotlights and electrically controlled bait boxes, thereby improving netting efficiency.

[0028] 5. This invention is applicable to the environmental protection field for cleaning up solid pollutants floating on rivers, lakes, and seas, especially in waters far from the shore. Its operation is not only highly efficient but also significantly lower in terms of labor and economic costs. Given the current severe problem of solid pollutants floating on rivers, lakes, and seas, and the arduous work of dredging and cleaning, this invention is undoubtedly a powerful tool for environmental pollution control.

[0029] 6. In this invention, when the adapter is disengaged from the clutch connection, the rotating disk rotates around its axis to a certain speed and has a fixed axis, thus avoiding serious tilting or overturning of the rotating disk and fishing net, ensuring reliable net setting. Attached Figure Description

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0031] Figure 1 This is a schematic diagram of the fishing net of the present invention being tied to a rotating disc;

[0032] Figure 2 This is a schematic diagram showing the state in which the free part of the fishing net opens outward and downward after the binding component of the present invention releases the constraint force on the fishing net.

[0033] Figure 3 This is a top view of the rotating disk of the present invention, which is provided with a float and a tray.

[0034] Figure 4 for Figure 3 A sectional view;

[0035] Figure 5 This is a schematic diagram of the structure of the rotating disk of the present invention, which is provided with a float, a tray and a turbine fan respectively;

[0036] Figure 6 This is a front view of the coaxial rotorcraft of the present invention, which is fixedly connected to the rotating disk;

[0037] Figure 7This is a top view of the power mechanism inside the float body for driving the rotating disk to rotate relative to the float body in this invention;

[0038] Figure 8 for Figure 7 A sectional view;

[0039] Figure 9 The multi-rotor aircraft in this invention and Figure 5 A schematic diagram of the rotating disk connection in the scheme;

[0040] Figure 10 The multi-rotor aircraft in this invention and Figure 5 A schematic diagram of the rotating disk separation connection in the scheme;

[0041] Figure 11 The multi-rotor aircraft in this invention and Figure 7 A schematic diagram of the rotating disk connection in the scheme;

[0042] Figure 12 The coaxial rotorcraft of this invention and Figure 7 A schematic diagram of the rotating disk connection in the scheme;

[0043] Figure 13 The present invention utilizes a rotating column and support robot in conjunction with Figure 5 A schematic diagram of the structure used in the rotating disk of the scheme;

[0044] Figure 14 This is a schematic diagram showing that the free part of the fishing net of the present invention has a draw line and a submersible reel;

[0045] Figure 15 for Figure 14 A magnified view of the area marked A;

[0046] Figure 16 This is a front view of the coaxial rotorcraft and rotating disk of the present invention, which can be detachably connected.

[0047] Figure 17 This is a schematic diagram of the coaxial rotorcraft of the present invention in the state of separation from the rotating disk. Detailed Implementation

[0048] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0049] like Figure 1-17As shown, this invention provides an amphibious net-catching system capable of accurately and efficiently capturing predetermined target objects. It is particularly suitable for net-catching operations on water surfaces, and also suitable for net-catching target objects on open land. The target object can be static or dynamic, whether on water or land. The system includes a rotating disk 1 and a fishing net 2 that can rotate around their own axis. The rotating disk 1 is made of a rigid material, preferably a lightweight aluminum alloy or plastic steel. The fishing net 2 has a connecting part and a free part. The connecting part of the fishing net 2 has a canvas area 23, and a belt and buckle are provided on the canvas area 23. After the connecting part of the fishing net 2 is put on the rotating disk, it is fixedly connected to the rotating disk 1 by the cooperation of the belt and buckle. In order to prevent the fishing net 2 from rotating relative to the rotating disk 1, an anti-slip structure is provided at the position corresponding to the connection between the rotating disk 1 and the canvas area. The free part of the fishing net 2 has a counterweight 21, which is a lead weight. Before the net is set, the fishing net 2 is folded back and forth in an orderly manner and then tied to the rotating disk 1 by the binding assembly 3 and can rotate with the rotating disk 1. The weight of the folded fishing net 2 is evenly distributed around the circumference of the rotating disk 1 to ensure that the rotating disk 1 is stable during rotation and to avoid vibration and other problems caused by unbalanced forces. In addition, the free part and counterweight 21 of the folded fishing net 2 are located on the outer periphery. When the rotating disk 1 rotates around its central axis to a preset speed, the binding assembly 3 can automatically or passively loosen the fishing net 2. The counterweight 21 flies out along the tangent of the circumference of the rotating disk 1, so that the fishing net 2 opens under the traction of the counterweight 21 to form a net trapping space 22. The fishing net 2 is circular when it is opened, and when the fishing net 2 has spread out to the maximum area, it pulls the rotating disk 1 to reduce the rotation speed.

[0050] The binding assembly 3 adopts an automatic release scheme, which includes an electromagnetic adsorption device 31 and a binding strap 32 that are relatively fixedly connected to the inside of the rotating disk 1. One end of the binding strap 32 is fixedly connected to the rotating disk 1 or the electromagnetic adsorption device 31, and the other end of the binding strap 32 is a free end, and is provided with a magnetic conductive element 33 for the electromagnetic adsorption device 31 to magnetically adsorb. When the fishing net 2 is folded, the binding strap 32 with the magnetic conductive element 33 at one end wraps around the binding fishing net 2 and connects to the electromagnetic adsorption device 31. When the user rotates the rotating disk to a certain speed and it is above the target object, the electromagnetic adsorption device 31 can be demagnetized by remote control, thereby releasing the fishing net 2. Since the rotating disk still maintains a certain speed at this time, the released fishing net 2 opens under the action of centrifugal force.

[0051] The binding assembly 3 adopts a passive release scheme. The binding assembly 3 is a binding strap 32 with a Velcro adhesive structure. After the fishing net is folded, it is bound to the rotating disk 1 by the binding strap 32. When the rotating disk 1 rotates to the preset speed, the fishing net 2 and the counterweight 21 are subjected to centrifugal force to overcome the Velcro adhesive force until the fishing net 2 is released. Then, the fishing net 2 is opened under the traction of the counterweight 21 to form the net trapping space 22.

[0052] To facilitate the support of the folded fishing net 2, such as Figure 4-5 As shown, a tray 11 is formed circumferentially on the outer side of the rotating disk 1, and the outer edge of the tray 11 is raised upward to prevent the folded fishing net 2 from falling apart.

[0053] like Figure 3-13 As shown, in order to ensure that the rotating disk 1 can float on the water surface when the present invention is used for net fishing, a float 4 is connected to the rotating disk 1. The float 4 is preferably made of fiberglass, plastic steel or weather-resistant rubber. As one embodiment of the float 4, the float 4 can be a weather-resistant rubber ring that is fitted onto the outer circumference of the rotating disk. The rubber ring is inflated to form the float 4. Therefore, the connecting part of the fishing net 2 can be fitted onto the rotating disk 1 before the rubber ring is inflated. After the rubber ring is fully inflated, it tightens and connects to the fishing net 2.

[0054] During use, casters are provided at the bottom of the rotating disk or the bottom of the float 4 for easy handling. These casters are evenly distributed around the central axis of the rotating disk.

[0055] like Figure 14 , 15 As shown, during surface fishing, to prevent the caught target from slipping through the net during retrieval, a circumferentially threaded closing line 23 is provided on the free part of the fishing net 2. A submersible reel 24 is also provided on the free part of the fishing net 2 to wind the closing line 23 and close the free part of the net 2. This submersible reel 24 is electrically connected to the control and power supply on the rotating disk 1 via a wire 25. The wire 25 is larger than the radius of the fishing net 2 to prevent it from being pulled during use. Specifically, the submersible reel 24 consists of a stainless steel low-speed deep-water waterproof DC motor, a built-in controller, a winding reel, and a motor protective cover. The output of the low-speed deep-water waterproof DC motor directly drives the winding reel to rotate. The motor protective cover is inserted into the net's closing cloth sleeve and connected to the fishing net. Multiple submersible reels 24 can be evenly deployed on the free part of the fishing net as needed. When the net is being cast, the submersible reel 24 also acts as a sinker. Alternatively, the underwater reel 24 can be mounted on the float support 41, with the take-up line 23 extending to the float support and then connecting to the winding spool of the underwater reel 24, which can shorten the length of the wire 25.

[0056] After the submersible reel winds up the closure line to close the net, the rotating disc and fishing net are lifted. Once lifted out of the water, the free portion of the net and the closure line will bear the weight of the trapped object. If the trapped object is heavy, it can easily disrupt the closure. Therefore, it is necessary to optimize the force-bearing structure of the closure by adding a strong, flexible traction cable with a length greater than the diameter of the net when it is open. One end of the strong, flexible traction cable is fixed to the free portion of the net on one side of the submersible reel, and the other end passes radially through the center of the net, then is movably threaded through the free portion of the net, and finally extends through the net's connecting part and is used to connect to the winch. After the net traps the target object, the submersible reel is first activated to wind up the closure line to close the net, and then the winch is activated to pull up the free portion of the net using the strong, flexible traction cable. This ensures that after the trapped object is lifted, its weight is mainly borne by the strength of the strong, flexible traction cable and the net itself, resulting in reliable net retrieval.

[0057] As an embodiment 1 of the present invention:

[0058] like Figure 6 A number of connecting rods 12 are connected to the inner side of the rotating disk 1 at an upward angle. The connecting rods 12 form a central hanger 10, and the intersection of the upper ends of the connecting rods 12 is located on the axis of the rotating disk 1. The central hanger 10 is coaxially and fixedly connected to the coaxial rotorcraft 5. When the coaxial rotorcraft 5 hovers and rotates in place, it drives the rotating disk 1 to rotate around its central axis. The coaxial rotorcraft 5 includes a support frame 52 and a number of coaxial rotors 53 that are rotatably connected to the support frame 52 and coaxially arranged with the rotating disk. A protective cover 54 for protecting the coaxial rotors 53 is also connected to the support frame 52. The bottom of the support frame 52 is integrally and coaxially fixedly connected to the upper end of the central hanger 10. When in use, the coaxial rotorcraft 5 hovers and spins in place when it approaches the target object, and when the rotating disk 1 reaches the preset speed, the binding assembly 3 automatically or passively releases the fishing net 2, and the counterweight 21 flies out along the circumferential tangential direction of the rotating disk 1, so that the fishing net 2 opens under the traction of the counterweight 21 to form a net trapping space 22.

[0059] As an embodiment 2 of the present invention:

[0060] like Figure 16 , Figure 17As shown, the rotating disk 1 is connected to the float 4. Several connecting rods 12 are connected to the inner side of the rotating disk 1 at an upward angle. These connecting rods 12 form a central hanger 10, and the intersection of the upper ends of the connecting rods 12 is located on the axis of the rotating disk 1, forming a clutch connection part 121. This embodiment also includes a coaxial rotorcraft 5. The coaxial rotorcraft 5 further includes an adapter 51, which is detachably connected to the clutch connection part 121, and a support foot 55 for landing support, both located on the bottom of the support frame 52. The specific structure of the adapter 51 and the clutch connection part 121 can be a mechanical gripper structure, a suction cup structure, or an electromagnetic adsorption structure. Preferably, the adapter 51 uses an electromagnetic adsorption structure, and the corresponding clutch connection part 121 uses a magnetically conductive structure. The coaxial rotor 53 and the rotating disk 1 are magnetically connected. Since the coaxial rotor 53 and the rotating disk 1 are coaxial, when the coaxial rotor aircraft 5 is flying, the rotating disk 1 is driven to rotate simultaneously through the adapter 51. When the coaxial rotor aircraft 5 flies to its destination and hovers in place while spinning, it drives the rotating disk 1 to rotate around its central axis. As needed, the binding assembly 3 with the electromagnetic adsorption device can be actively released to cast the net to capture the target. For the binding assembly 3 with the Velcro adhesive structure, it needs to be passively released after the rotating disk 1 reaches the preset speed to cast the net to capture the target. Since the rotating disk reaches a certain speed and has a fixed axis after the adapter 51 is separated from the clutch connection part 121, the problem of serious tilting or overturning of the rotating disk and fishing net can be avoided, ensuring reliable net casting.

[0061] like Figure 6 As shown, as a further improvement of Embodiment 1, a turbofan 7 is provided inside the rotating disk 1. When the coaxial rotorcraft 5 flies to the destination, the adapter 51 separates from the clutch connection part 121. The rotating disk 1, with a certain initial speed, rotates around its central line and has a fixed axis. When it is in free fall in the air, the turbofan 7 causes the rotating disk 1 to accelerate its rotation. When the fixed-axis rotating disk 1 rotates to the preset speed, the fishing net 2 and the counterweight 21 overcome the constraint force of the binding assembly 3 and loosen the fishing net 2. The counterweight 21 flies out along the circumferential tangential direction of the rotating disk, so that the fishing net 2 opens under the traction of the counterweight 21 to form a net-catching space 22. Through the fixed axis of the rotating disk, the net is cast as close to the horizontal plane as possible to ensure the net-casting effect. In specific implementation, a landing sonar fish swarm detector enters the net-catching area to detect the fish swarm situation, and then sends the information of the net-caught fish swarm to the corresponding ship.

[0062] like Figure 12As shown, as another improvement to this embodiment, so that the net can be automatically cast directly when floating on the water surface for netting, the rotating disk 1 and the float 4 are rotatably connected, that is, the rotating disk 1 and the float 4 are provided with T-shaped grooves and T-shaped guide rails that are slidably connected to each other, and the rotating disk 1 is placed on the upper part of the float 4; the inner ring of the float 4 is provided with a float support 41, and the float support 41 is provided with a rechargeable battery 40 and a power mechanism 42 electrically connected to the rechargeable battery 40. The power mechanism 42 includes a power drive motor with a drive gear 421 at the power output end and an internal gear ring 422 provided in the circumferential direction of the inner ring of the rotating disk 1. According to the design and force balance requirements, three power drive motors distributed at 120° are provided on the float support 41, and the drive gears 421 on them are all meshed with the internal gear ring 422.

[0063] When the adapter 51 is separated from the clutch connection part 121, the power mechanism 42 is used to drive the rotating disk 1 to rotate relative to the float 4. The bottom of the float 4 is provided with a damping baffle 43. When the rotating disk 1 floats on the water surface through the float 4 and the power mechanism 42 drives the rotating disk 1, the damping baffle 43 causes the rotating disk 1 to rotate relative to the float 4 through the reaction force of the water.

[0064] In use, the coaxial rotorcraft 5 carries the rotating disk 1, which has been folded and tied with a fishing net, and flies to the destination. Then, the control adapter 51 separates from the clutch connection 121, and the rotating disk 1 falls and floats on the water. When the target object appears, the power mechanism 42 starts and drives the rotating disk 1 to reach the preset speed, and releases the fishing net, so that it opens to form a net trapping space 22 to surround the target object. Then, the underwater reel 24 closes the net. Finally, the coaxial rotorcraft 5 is controlled to connect the adapter 51 and the clutch connection 121 to lift the rotating disk and the fishing net and fly to the predetermined position.

[0065] like Figure 8 As shown, in this embodiment, the float support 41 is equipped with a generator 44 for charging the rechargeable battery 40. The float 4 is a hollow structure that can store fuel supplied to the generator 44. By configuring fuel, generator, and corresponding charger, it is possible to prepare for long-distance fishing at sea, with the fuel stored in the float cavity. In addition, several oil baffles 45 are evenly spaced inside the float 4. The oil baffles 45 are provided with slow flow holes 451 for the fuel to flow smoothly between adjacent sections of the oil baffles 45. The slow flow holes 451 are relatively small holes. The purpose of setting the oil baffles is to prevent the float from tilting during takeoff and flight, which would cause it to sway inside the float cavity and affect the stability of the flight. The purpose of making slow flow holes 451 on the oil baffles is to keep the fuel in adjacent isolation sections in a state of mutual fine flow at all times, so as to maintain balance.

[0066] As an embodiment 3 of the present invention:

[0067] like Figure 9 , 10 As shown, a float 4 is connected to the rotating disk 1. Several connecting rods 12, forming a hanger, are connected to the inner side of the rotating disk 1 at an upward angle. The intersection of the upper ends of the connecting rods 12 is located on the axis of the rotating disk 1, forming a clutch connection part 121. This embodiment includes a multi-rotor aircraft 6. The multi-rotor aircraft 6 includes a connecting base 62. Several outwardly extending support rods 63 are arranged in a circular array on the upper part of the connecting base 62. An eccentric rotor 64 is connected to each support rod 63, that is, the rotation axis of all eccentric rotors 64 is eccentric to the central rotation axis of the rotating disk. A rotating disk drive mechanism 61 is provided extending from the bottom of the connecting base 62. The rotating disk drive mechanism 61 includes a motor placed inside the connecting base 62 and a gear on the output shaft of the motor, which meshes with a gear connected to an adapter 51. The multi-rotor aircraft 6 is connected to the clutch connection part 121 through the adapter 51 and drives the rotating disk 1 to rotate through the rotating disk drive mechanism 61.

[0068] In use, the multi-rotor aircraft 6 carries the fishing net 2, which is folded and tied to the rotating disk 1, and flies to the destination. The rotating disk drive mechanism 61 drives the rotating disk 1 to rotate. As needed, the binding assembly 3 can automatically or passively loosen the fishing net 2, so that the fishing net 2 opens under the traction of the counterweight 21 to form a net trapping space 22 for netting the target object.

[0069] As a further improvement to Example 3, such as Figure 8 , 9 As shown, the rotating disk 1 is equipped with a turbine fan 7, which causes the adapter 51 to separate from the clutch connection part 121. The rotating disk 1, with a certain initial speed, rotates around its central line and has a fixed axis. When it is in free fall in the air, it accelerates its rotation. When the rotating disk 1 rotates to the preset speed, the fishing net 2 and the counterweight 21 overcome the constraint force of the binding assembly 3 and loosen the fishing net 2, so that the fishing net 2 opens under the traction of the counterweight 21 to form the net trapping space 22.

[0070] As another improvement to Embodiment 3, the inner ring of the float 4 is provided with a float support 41. The float support 41 is provided with a rechargeable battery 40 and a power mechanism 42 electrically connected to the rechargeable battery 40. When the adapter 51 is separated from the clutch connection part 121, the power mechanism 42 is used to drive the rotating disk 1 to rotate relative to the float 4. This scheme is used for a multi-rotor aircraft 6 to carry the rotating disk 1, which has been folded and tied with a fishing net, to the destination. Then, the adapter 51 is controlled to separate from the clutch connection part 121, and the rotating disk 1 falls and floats on the water surface. When the target object appears, the power mechanism 42 is activated to drive the rotating disk 1 to a preset speed and release the fishing net, so that it opens to form a net trapping space 22 to surround the target object. Then, the underwater reel 24 is used to close the net. Finally, the multi-rotor aircraft 6 is controlled to connect the adapter 51 and the clutch connection part 121 to lift the rotating disk and the fishing net and fly to the predetermined position.

[0071] In another improved embodiment 3, the function and effect are the same as in another improved embodiment 2. That is, the bottom of the float 4 is also provided with a damping baffle 43. When the rotating disk 1 floats on the water surface through the float 4 and the power mechanism 42 drives the rotating disk 1, the damping baffle 43 causes the rotating disk 1 to rotate relative to the float 4 through the reaction force of the water. A generator 44 for charging the rechargeable battery 40 is provided on the float support 41. The float 4 has a hollow structure and stores fuel supplied to the generator 44, enabling it to operate at long distances. A plurality of oil separators 45 are evenly spaced inside the float 4. The oil separators 45 are provided with slow flow holes 451 for the fuel to flow smoothly between adjacent sections of the oil separators 45.

[0072] As an embodiment 4 of the present invention:

[0073] This embodiment differs from the previous embodiment in that it includes a rotating column 8 and a flexible drive belt 9. The rotating column 8 is rotatably connected to the ship's deck. A support manipulator 81 is provided on the upper part of the rotating column 8. The upper end of the support manipulator 81 has an annular insertion opening 82 for supporting the rotating disk 1. When the rotating column 8 is controlled to rotate, the support manipulator 81 rotates accordingly. An annular groove 13 is provided on the rotating disk 1 along its circumference. One end of the flexible drive belt 9 is a fixed end and is fixedly connected to the support manipulator 81 and rotates with the rotating column 8. The other end of the flexible drive belt 9 is a free end used to wrap around the annular groove 13. When the rotating column 8 drives the support robot 81 to rotate instantly, the rotating disk 1 on the support robot 81 is thrown out accordingly. At the same time, the flexible drive belt 9 pulls the rotating disk 1 to make it rotate and fly out. When the rotating disk 1 rotates to the preset speed, the fishing net 2 and the counterweight 21 overcome the binding force of the binding assembly 3 and loosen the fishing net 2, so that the fishing net 2 opens under the traction of the counterweight 21 to form the net trapping space 22.

[0074] As an improvement to this embodiment, the rotating disk 1 is equipped with a turbofan 7, which accelerates the rotation of the rotating disk 1 during free fall in the air after the initial rotation speed. It is also equipped with a wireless controller. When the rotating disk 1 rotates to the preset rotation speed, the fishing net 2 and the counterweight 21 overcome the constraint force of the binding assembly 3 and loosen the fishing net 2. The fishing net 2 is then opened under the traction of the counterweight 21 to form a net-catching space 22. In specific implementation, a landing sonar fish swarm detector enters the net-catching area to detect the fish swarm situation, and then sends the information of the net-caught fish swarm to the corresponding ship.

[0075] In embodiments 1, 2, 3, and 4 above, for small-scale fish harvesting, the coaxial rotorcraft 5 or multi-rotorcraft 6 can take off directly, slide, and pull the fishing net, allowing the fish to enter the net's swirling area at the end. Then, it takes off again, returns to the ship's deck, lowers, and hovers, where the fish are manually removed and placed in a fish basket. For large-scale fish harvesting, the coaxial rotorcraft 5 or multi-rotorcraft 6 cannot be directly lifted and flown. In this case, the ship can wait for a large-area seine net to be used to trap the fish pre-trapped in the net. After the large net has completely enclosed the area, the coaxial rotorcraft 5 or multi-rotorcraft 6 can take off again, pulling out a small number of fish and flying them back to the ship's deck. Before the next netting operation, the net is folded again and secured to the rotating disc using the binding assembly 3, with the folded net supported by a tray to prevent it from scattering.

[0076] In order to effectively monitor the target object before netting, the present invention provides a periscope and / or sonar fish detector 46 at the bottom of the floating support 41. When the coaxial rotorcraft 5 or multi-rotorcraft 6 carries the rotating disk 1 with the fishing net folded and tied, it flies to the destination and hovers. The rotating disk is on or near the water surface. The periscope or sonar fish detector is lowered first. The periscope or sonar fish detector is controlled by a miniature winch to raise and lower the altitude. When a school of fish is found to be gathering in the water below the rotating disk, the image of the gathering school of fish can be seen visually on the handheld mobile control terminal. Then, it can take off and hover to rotate for netting; or the control adapter 51 can be separated from the clutch connection 121, and the power mechanism 42 can be started to drive the rotating disk 1 to a preset speed, and the fishing net can be loosened and opened to form a netting space 22 to trap the target object.

[0077] Furthermore, the bottom of the float support 41 of the present invention is provided with a spotlight 47 and / or a bait box 48. When the coaxial rotorcraft 5 or multi-rotorcraft 6 carries the rotating disk 1 with the fishing net folded and tied, flies to the destination and floats in the water, and the periscope or sonar fish detector does not find any fish, bait can be placed in the bait box 48 and / or the spotlight 47 can be turned on to attract fish for trapping.

[0078] In this invention, a turbofan 7 is installed inside the rotating disk 1. The main purpose is to ensure that when the coaxial rotorcraft 5 or multi-rotorcraft 6, carrying the rotating disk 1 with its attached fishing net, separates from the rotating disk upon reaching its destination, the net remains attached. Therefore, the rotating disk 1 needs to continue rotating faster. The turbofan 7 accelerates the rotating disk 1 during free fall, by gradually changing the angle of the windward face of the turbofan 7 blades, guiding the airflow towards the central shaft hole at the intersection of the turbofan 7 blades. In this invention, the blades of the turbofan 7 have relatively high thickness and moderate relative curvature; the leading edge of the blades is relatively thick and rounded to reduce aerodynamic losses and drag, while the trailing edge is relatively thin and sharp to reduce turbulence generation and improve the overall quality of the airflow.

[0079] Furthermore, the airfoil thickness of the WS-7 blade varies with distance from the blade root; specifically, it is thicker at the root to withstand greater loads and rotational speeds, and thinner at the tip to reduce drag and improve flow field distribution. Additionally, the leading-edge airfoil of the WS-7 blade has a smaller radius of curvature on its upper surface to generate a higher suction effect, which helps improve the blade's lift and efficiency. The trailing edge of the WS-7 blade has a certain curvature, called trailing-edge camber, which reduces peak drag and turbulence generation, improving the blade's aerodynamic performance.

[0080] In addition, to facilitate net retrieval during net capture operations, the rotating disk of this invention is equipped with wireless communication and satellite positioning signals for tracking and positioning. Furthermore, the coaxial rotorcraft 5 or multi-rotorcraft 6, which require collaborative operation, must also meet the following performance requirements:

[0081] 1. Load capacity greater than 150KG, and strong wind resistance;

[0082] 2. Equipped with real-time data transmission capability;

[0083] 3. Equipped with safety measures including low voltage protection and automatic return in case of fault;

[0084] 4. Equipped with BeiDou and / or GPS satellite navigation systems;

[0085] 5. The flight control system includes attitude sensors, position sensors, and environmental sensors, and can fly autonomously along a flight path and change flight paths in real time.

[0086] 6. Equipped with airborne and ground terminals, with a wireless transmission communication distance of over 10 kilometers;

[0087] 7. Equipped with a flight mission trajectory management platform, as well as a monitoring and real-time image transmission system.

Claims

1. An amphibious net fishing system, comprising a fishing net (2) and a rotating disk (1) rotatable about its own axis, wherein the fishing net (2) has a connecting part and a free part, the fishing net (2) is connected to the rotating disk (1) through the connecting part, and the free part of the fishing net (2) is provided with a counterweight (21), characterized in that After the fishing net (2) is folded, it is tied to the rotating disk (1) by the binding assembly (3) and rotates with the rotating disk (1). After the fishing net (2) is folded, the free part of the fishing net (2) and the counterweight (21) are located on the outside. When the rotating disk (1) rotates to the preset speed, the binding assembly (3) automatically or passively loosens the fishing net (2), and the counterweight (21) flies out along the circumferential tangential direction of the rotating disk (1), so that the fishing net (2) opens under the traction of the counterweight (21) to form a net-catching space (22). A tray (11) for supporting the folded fishing net (2) is formed circumferentially on the outer side of the rotating disk (1), and the outer edge of the tray (11) is raised to prevent the folded fishing net (2) from falling out; the rotating disk (1) can float on the water surface and is connected to a float (4), which is a rubber ring fitted on the outer circumference of the rotating disk (1), and the rubber ring is inflated and tightly connected to the fishing net (2); a central hanger (10) is coaxially connected to the inner side of the rotating disk (1), and a clutch connection part (121) is formed at the upper end of the central hanger (10); the amphibious net fishing system also includes a coaxial rotorcraft (5) or a multi-rotorcraft (6), and the bottom of the coaxial rotorcraft (5) and the multi-rotorcraft (6) is provided with an adapter (51) for detachable connection with the clutch connection part (121); After the connecting part of the fishing net (2) is fitted onto the rotating disk (1), it is fixedly connected to the rotating disk (1). At the corresponding position of the connection between the rotating disk (1) and the fishing net (2), there is an anti-slip structure to prevent the fishing net (2) from rotating relative to the rotating disk (1). Before the net is spread, the fishing net (2) is folded back and forth in an orderly manner and then tied to the rotating disk by the binding assembly (3) and can rotate with the rotating disk (1). The weight of the folded fishing net (2) is evenly distributed around the circumference of the rotating disk (1). When the rotating disk (1) rotates around its central axis to the preset speed, the binding assembly (3) automatically or passively loosens the fishing net (2), and the counterweight (21) flies out along the tangent direction of the circumference of the rotating disk (1), so that the fishing net (2) is spread open under the traction of the counterweight (21) to form a net-catching space (22). The fishing net (2) is circular when it is spread open, and when the fishing net (2) spreads out the maximum area, it pulls the rotating disk (1) to reduce the rotation speed. The rotating disk (1) is equipped with a turbofan (7) so that the rotating disk (1) accelerates its rotation when it is in free fall in the air. When the rotating disk (1) rotates to the preset speed, the binding assembly (3) actively or passively loosens the fishing net (2), so that the fishing net (2) opens under the traction of the counterweight (21) to form a net trapping space (22). The inner ring of the float (4) is provided with a float support (41), and the float support (41) is provided with a rechargeable battery (40) and a power mechanism (42) electrically connected to the rechargeable battery (40). When the adapter (51) is separated from the clutch connection (121) and the rotating disk (1) floats on the water surface, the power mechanism (42) is used to drive the rotating disk (1) to rotate relative to the float (4) in a timely manner. The bottom of the float (4) is provided with a damping baffle (43). When the rotating disk (1) floats on the water surface through the float (4) and the power mechanism (42) drives the rotating disk (1), the damping baffle (43) causes the rotating disk (1) to rotate relative to the float (4) through the reaction force of the water.

2. The amphibious net-catching system according to claim 1, characterized in that... When the coaxial rotorcraft (5) hovers and spins in place, it drives the rotating disk (1) to rotate around its central axis by connecting the adapter (51) and the clutch connection (121).

3. The amphibious net-catching system according to claim 1, characterized in that... The multi-rotor aircraft (6) is provided with a rotating disk drive mechanism (61) at the bottom. The power output end of the rotating disk drive mechanism (61) is provided with an adapter (51) that can be detachably connected to the clutch connection part (121). The multi-rotor aircraft (6) is connected to the clutch connection part (121) through the adapter (51) and drives the rotating disk (1) to rotate around its central axis through the rotating disk drive mechanism (61).

4. The amphibious net-catching system according to claim 1, characterized in that... The float support (41) is equipped with a generator (44) for charging the rechargeable battery (40), and the float (4) is a hollow structure that stores fuel for supplying to the generator (44).

5. The amphibious net-catching system according to claim 4, characterized in that... The float (4) is provided with several oil separators (45) evenly spaced inside, and the oil separators (45) are provided with slow flow holes (451) for the fuel to flow smoothly between two adjacent sections of the oil separators (45).

6. The amphibious net-catching system according to claim 1, characterized in that... The free part of the fishing net (2) is provided with a closing line (23) along the circumference, and a diving reel (24) is provided on the free part of the fishing net (2) for winding the closing line (23) to close the free part of the fishing net (2).

7. The amphibious net-catching system according to claim 1, characterized in that... The bottom of the floating support (41) is equipped with a periscope and / or a sonar fish detector (46).

8. The amphibious net-catching system according to claim 1, characterized in that... The bottom of the float support (41) is equipped with a spotlight (47) and / or a bait box (48).

9. The amphibious net-catching system according to claim 1, characterized in that... The binding assembly (3) includes an electromagnetic adsorption device (31) and a binding strap (32) that are relatively fixedly connected to the inside of the rotating disk (1). One end of the binding strap (32) is relatively fixedly connected to the rotating disk (1) or the electromagnetic adsorption device (31), and the other end of the binding strap (32) is provided with a magnetic conductive part (33) for magnetic adsorption by the electromagnetic adsorption device (31); or the binding assembly (3) is a binding strap (32) with a Velcro adhesive structure. After the fishing net is folded, it is bound to the rotating disk (1) by the binding strap (32). When the rotating disk (1) rotates to the preset speed, the fishing net (2) and the counterweight (21) overcome the Velcro adhesive force and loosen the fishing net (2), so that the fishing net (2) opens under the traction of the counterweight (21) to form a net-catching space (22).

10. A net-catching system usable on both land and water, characterized in that... The system includes a fishing net (2) and a rotating disk (1) that can rotate around its own axis. The rotating disk (1) is connected to a float (4) that can float on the water surface. The float (4) is a rubber ring that is fitted around the outer circumference of the rotating disk (1), and the rubber ring is inflated and tightly connected to the fishing net (2). The fishing net (2) has a connecting part and a free part. The fishing net (2) is connected to the rotating disk (1) through the connecting part. The free part of the fishing net (2) is provided with a counterweight (21). After the fishing net (2) is folded, it is tied to the rotating disk (1) by a binding assembly (3) and rotates with the rotating disk (1). After the fishing net (2) is folded, the free part of the fishing net (2) and the counterweight (21) are located on the outside. The amphibious net fishing system also includes a rotating column (8) and a flexible drive belt (9). The rotating column (8) is provided with a rotating column (8). There is a support robot (81) for supporting the rotating disk (1). The rotating disk (1) is provided with an annular groove (13) along the circumference. One end of the flexible drive belt (9) is fixedly connected to the support robot (81) and rotates with the rotating column (8). The other end of the flexible drive belt (9) is used to wrap around the annular groove (13) of the rotating disk (1) located on the support robot (81). When the rotating column (8) drives the support robot (81) and the rotating disk (1) to rotate and throws out the rotating disk (1), the rotating disk (1) will rotate under the pull of the flexible drive belt (9). When the rotating disk (1) rotates to the preset speed, the binding assembly (3) automatically or passively loosens the fishing net (2), so that the fishing net (2) opens under the traction of the counterweight (21) to form a net trapping space (22). A tray (11) for supporting the folded fishing net (2) is formed circumferentially on the outer side of the rotating disk (1), and the outer edge of the tray (11) is raised to prevent the folded fishing net (2) from falling. The rotating disk (1) is equipped with a turbine fan (7) so that the rotating disk (1) accelerates its rotation when it is in free fall in the air. When the rotating disk (1) rotates to a preset speed, the binding assembly (3) automatically or passively loosens the fishing net (2), so that the fishing net (2) opens up to form a net-catching space (22) under the traction of the counterweight (21). After the connecting part of the fishing net (2) is fitted onto the rotating disk (1), it is fixedly connected to the rotating disk (1). At the corresponding position of the connection between the rotating disk (1) and the fishing net (2), there is an anti-slip structure to prevent the fishing net (2) from rotating relative to the rotating disk (1). Before the net is spread, the fishing net (2) is folded back and forth in an orderly manner and then tied to the rotating disk by the binding assembly (3) and can rotate with the rotating disk (1). The weight of the folded fishing net (2) is evenly distributed around the circumference of the rotating disk (1). When the rotating disk (1) rotates around its central axis to the preset speed, the binding assembly (3) automatically or passively loosens the fishing net (2), and the counterweight (21) flies out along the tangent direction of the circumference of the rotating disk (1), so that the fishing net (2) is spread open under the traction of the counterweight (21) to form a net-catching space (22). The fishing net (2) is circular when it is spread open, and when the fishing net (2) spreads out the maximum area, it pulls the rotating disk (1) to reduce the rotation speed.

11. The amphibious net-catching system according to claim 10, characterized in that... A float (4) is connected to the rotating disk (1), and a central hanger (10) is coaxially connected to the inner side of the rotating disk (1). A clutch connection part (121) is formed at the upper end of the central hanger (10).

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