Fishing device and fishing system

Abstract

This invention discloses a fishing device and system, relating to the field of fishing, to improve the flexibility of fishing. The fishing device includes: a launching device, a launching component, and a fishing net; the launching component is connected to the open end of the fishing net. The launching device includes a power unit and a transmission component. The power unit is configured to provide power; the transmission component is connected to the power unit to transmit power to the launching component under the drive of the power unit. The above technical solution solves the problem of difficulty in casting nets in areas inaccessible to humans, greatly expanding the operational range of net casting. The design of the power unit and transmission component allows for precise control of the launching force, improving the accuracy of net casting. The launching component adopts a specific structure described later, ensuring the effective deployment of the fishing net and its smooth arrival at the target area during the casting process, improving the convenience and efficiency of fishing.

Description

Technical Field

[0001] This invention relates to the field of fishing, and more specifically to a fishing device and a fishing system. Background Technology

[0002] Manual net casting is a traditional fishing method widely used in small bodies of water, nearshore and inland waters. It relies on operators casting by hand and manually hauling in the net. This method requires no complex equipment and has low investment costs, and is still widely used in small-scale and recreational fishing scenarios.

[0003] The inventors have discovered that the existing technology has at least the following problems: the fishing method has high requirements for the operation location, and the operators can only cast and retrieve the nets on the shore or on the boat, which greatly limits the fishing range and makes it impossible to fish in waters far from the shore and inaccessible by boat. Summary of the Invention

[0004] This invention proposes a fishing device and a fishing system to improve the flexibility of fishing.

[0005] This invention provides a fishing device, including a fishing net, a catapult component, and a catapult device; the catapult component is connected to the open end of the fishing net;

[0006] The ejection device includes:

[0007] The power unit is configured to provide power; and

[0008] A transmission component is connected to the power unit to transmit power to the ejection component under the drive of the power unit;

[0009] The ejection component is configured to be launched via the transmission component under the action of the power unit to open the fishing net.

[0010] In some embodiments, the power unit includes a motor, and the transmission component includes:

[0011] The cylinder body, wherein the motor is mounted at one end of the cylinder body, and the output shaft of the motor is located inside the cylinder body;

[0012] The lead screw is located inside the cylinder and is driven by the output shaft of the motor;

[0013] A nut, located inside the cylinder and mounted on the lead screw, moves linearly along its own axis under the rotation of the lead screw;

[0014] A first elastic element is located inside the cylinder and sleeved on the outside of the lead screw; one end of the first elastic element abuts against the nut; and

[0015] A magnetic component includes a through hole that communicates with the interior of the cylinder; the magnetic component is mounted on the end of the cylinder away from the motor.

[0016] When the magnetic component is in a state of maintaining magnetic force, the ejector component is attracted by the magnetic component, and the other end of the first elastic component abuts against the ejector component.

[0017] In some embodiments, when the ejection device is in its initial state, the nut is located at one end of the cylinder, the magnetic element is in a state of maintaining magnetic force, and the first elastic element is not compressed.

[0018] When the ejection device is in the launching state, the nut is located at the other end of the cylinder, the first elastic element is compressed, and then the magnetic element is de-energized and loses its magnetic force so that it no longer attracts the ejection component. The ejection component is launched under the elastic force of the first elastic element.

[0019] In some embodiments, the power unit includes a compressed air source configured to provide compressed gas; the transmission component includes:

[0020] A gas chamber includes an air inlet, a chamber body, and an air outlet that are interconnected; the compressed air source is connected to the air inlet.

[0021] The sealing element is located inside the chamber and at the air outlet;

[0022] The second elastic element is located inside the chamber and is in contact with or fixedly connected to the sealing element;

[0023] A gas cylinder, located outside the gas chamber and connected to the gas chamber's outlet, is configured to mount the ejection component; and

[0024] An impact component is installed on the gas chamber or the gas container; wherein the impact component is located outside the gas chamber and the gas container; the impact component is configured in the firing state to push open the sealing member to open the gas outlet, so that the compressed gas in the gas chamber enters the gas container.

[0025] In some embodiments, a sealing ring is installed on the outer wall of the ejection component, and the sealing ring is interference-fitted with the inner wall of the air cylinder.

[0026] In some embodiments, there are multiple air cylinders, which are fixedly connected, and each air cylinder is connected to the air outlet through its own separate pipeline.

[0027] In some embodiments, the gas cylinders are arranged in a circle, and the central axis of each gas cylinder is oriented away from the central axis of the gas chamber; each gas cylinder is equipped with a corresponding ejection component.

[0028] In some embodiments, when the ejection device is in its initial state, the second elastic element is compressed, and the sealing element is pressed against the air outlet by the second elastic element to block the air outlet; the impact component is moved away from the sealing element.

[0029] When the ejection device is in the firing state, the impact component applies a force to the sealing component in the opposite direction to the elastic force of the second elastic element, so as to overcome the elastic force of the second elastic element, push open the sealing component, and allow the compressed gas in the gas chamber to enter the gas cylinder, so as to eject the ejection component installed in the gas cylinder.

[0030] In some embodiments, the impact component is one of the following: a push-pull solenoid valve or a compression spring.

[0031] In some embodiments, the power unit includes a motor; the transmission component includes:

[0032] A receiving cylinder, wherein the power unit is installed on the outside of the receiving cylinder and is fixedly connected to the receiving cylinder;

[0033] A storage spring is installed inside the receiving cylinder;

[0034] A threaded rod is driven to rotate under the drive of the power unit;

[0035] The push block is threadedly connected to the threaded rod so as to move linearly along the axial direction of the threaded rod as it rotates.

[0036] A fishing net storage tube includes a first cavity and multiple second cavities, each of the second cavities being connected to the first cavity and spaced apart on the outer periphery of the first cavity; both ends of the first cavity are open; and each of the second cavities is equipped with a catapult component.

[0037] A magnetic component is fixedly installed inside the first cavity;

[0038] The force-applying component is movably installed inside the fishing net storage cylinder along the axial direction of the fishing net storage cylinder; the force-applying component is configured to apply a projectile force to the ejection component;

[0039] The energy storage spring is located between the push block and the force-applying component. When the magnetic component is in a state of maintaining magnetic force, the magnetic component and the force-applying component are attracted together.

[0040] In some embodiments, the force-applying member includes a fixedly connected force-bearing part and a force-applying part, and there are multiple force-applying parts, each of which is installed on the circumferential edge of the force-bearing part; the force-bearing part is located inside the first cavity, and each force-applying part corresponds to a second cavity.

[0041] In some embodiments, the load-bearing portion has a groove on the side facing the storage spring to accommodate the end of the storage spring.

[0042] In some embodiments, the ejection component is configured to be asymmetrical along its own axis to move outward after being launched to form a net-catching space; or, the ejection component includes an offset tail fin to move outward after being launched to form a net-catching space; or, the ejection component includes two or more materials of different weights to move outward after being launched to form a net-catching space.

[0043] In some embodiments, the fishing device further includes:

[0044] The fishing net mounting body is equipped with the top of the fishing net and the launching device. The power unit of the launching device includes a motor. There are multiple launching devices, which are arranged at intervals along the circumference of the fishing net mounting body.

[0045] In some embodiments, the power unit of the catapult includes a compressed air source, and each fishing net is installed in one catapult.

[0046] This invention also provides a fishing system, including the fishing device provided by any of the technical solutions of this invention.

[0047] In some embodiments, the fishing system further includes:

[0048] Float, the fishing device is mounted on the float; and

[0049] A drive mechanism, installed on the pontoon, is used to drive the pontoon to move on the water surface.

[0050] In some embodiments, the fishing system further includes:

[0051] The first support frame is variably mounted on the buoy; the fishing device is mounted on the buoy via the first support frame.

[0052] In some embodiments, the fishing system further includes:

[0053] A water distributor is installed on the pontoon to reduce resistance during the movement of the pontoon.

[0054] In some embodiments, the fishing system further includes:

[0055] A feeding device, installed on the buoy, is used to feed the water.

[0056] In some embodiments, the fishing system further includes:

[0057] The second support frame is variably mounted on the buoy, and the feeding device is mounted on the buoy via the second support frame.

[0058] In some embodiments, the number of feeding devices is one, and the number of second support frames is also one, with the second support frame located in the middle region of the buoy.

[0059] In some embodiments, the number of fishing devices is multiple, and each fishing device is distributed and installed in the buoy.

[0060] The fishing device provided by the above technical solution includes a fishing net, a catapult component, and a catapult mechanism. It solves the problem of difficulty in casting nets in areas inaccessible to humans, greatly expanding the operational range of net casting. Utilizing the design of the power unit and transmission components, the catapult force can be precisely controlled, improving the accuracy of net casting. The catapult component employs a specific structure described later, ensuring the effective deployment of the fishing net and its smooth arrival at the target area during casting, thus enhancing the convenience and efficiency of fishing. Attached Figure Description

[0061] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0062] Figure 1 This is a schematic diagram of the initial state of the catapult device provided in the first embodiment of the present invention.

[0063] Figure 2 This is a schematic diagram of the launching state of the catapult device provided in the first embodiment of the present invention.

[0064] Figure 3 This is a schematic diagram of the catapult device after launch, provided in the first embodiment of the present invention.

[0065] Figure 4 This is a three-dimensional schematic diagram of the ejection device provided in the second embodiment of the present invention.

[0066] Figure 5 This is a schematic diagram of an explosion of the catapult device provided in the second embodiment of the present invention.

[0067] Figure 6 This is a three-dimensional schematic diagram of the ejection device provided in the third embodiment of the present invention.

[0068] Figure 7 Another perspective view of the ejection device provided in the third embodiment of the present invention.

[0069] Figure 8 This is a front view schematic diagram of the ejection device provided in the third embodiment of the present invention.

[0070] Figure 9 for Figure 8 A schematic diagram of the AA section.

[0071] Figure 10 This is a right-side view of the ejection device provided in the third embodiment of the present invention.

[0072] Figure 11 This is a left-side view of the ejection device provided in the third embodiment of the present invention.

[0073] Figure 12 This is a schematic diagram of an explosion of the catapult device provided in the third embodiment of the present invention.

[0074] Figure 13 This is a three-dimensional structural diagram of a fishing system provided in the first embodiment of the present invention.

[0075] Figure 14 This is a schematic diagram of the exploded structure of a fishing system provided in the first embodiment of the present invention.

[0076] Figure 15 This is a schematic diagram of the main structure of a fishing system provided in the first embodiment of the present invention.

[0077] Figure 16 This is a rear view structural diagram of the fishing system provided in the first embodiment of the present invention.

[0078] Figure 17 This is a schematic diagram of the left-side structure of the fishing system provided in the first embodiment of the present invention.

[0079] Figure 18 This is a schematic diagram of the right-side structure of the fishing system provided in the first embodiment of the present invention.

[0080] Figure 19 This is a top view of the fishing system provided in the first embodiment of the present invention.

[0081] Figure 20 This is a bottom-view structural diagram of the fishing system provided in the first embodiment of the present invention.

[0082] Figure 21 This is a three-dimensional structural diagram of a fishing system provided in the second embodiment of the present invention.

[0083] Figure 22This is a schematic diagram of the exploded structure of a fishing system provided in the second embodiment of the present invention.

[0084] Figure 23 This is a schematic diagram of the main structure of a fishing system provided in the second embodiment of the present invention.

[0085] Figure 24 This is a rear view structural diagram of the fishing system provided in the second embodiment of the present invention.

[0086] Figure 25 This is a schematic diagram of the left-side structure of the fishing system provided in the second embodiment of the present invention.

[0087] Figure 26 This is a schematic diagram of the right-side structure of the fishing system provided in the second embodiment of the present invention.

[0088] Figure 27 This is a top view of the fishing system provided in the second embodiment of the present invention.

[0089] Figure 28 This is a bottom-view structural diagram of the fishing system provided in the second embodiment of the present invention.

[0090] Figure 29 This is a three-dimensional structural diagram of a fishing system provided in the third embodiment of the present invention.

[0091] Figure 30 This is a schematic diagram of the exploded structure of a fishing system provided in the third embodiment of the present invention.

[0092] Figure 31 This is a schematic diagram of the main structure of a fishing system provided in the third embodiment of the present invention.

[0093] Figure 32 This is a rear view structural diagram of the fishing system provided in the third embodiment of the present invention.

[0094] Figure 33 This is a schematic diagram of the left-side structure of the fishing system provided in the third embodiment of the present invention.

[0095] Figure 34 This is a schematic diagram of the right-side structure of the fishing system provided in the third embodiment of the present invention.

[0096] Figure 35 This is a top view of the fishing system provided in the third embodiment of the present invention.

[0097] Figure 36 This is a bottom-view structural diagram of the fishing system provided in the third embodiment of the present invention.

[0098] Figure label:

[0099] 10. Ejection device; 20. Ejection component; 30. Fishing net; 40. Fishing net mounting body; 50. Float; 60. Drive mechanism; 70. First support frame; 80. Water divider; 90. Feeding device; 100. Second support frame;

[0100] 1. Power unit; 2. Transmission components; 3. Sealing rings;

[0101] 11. Motor; 211. Cylinder; 212. Lead screw; 213. Nut; 214. First elastic element; 215. Magnetic element; 215a. Through hole;

[0102] 12. Compressed air source; 220. Sealing component; 221. Gas chamber; 221a. Air inlet; 221b. Chamber body; 221c. Air outlet; 222. Second elastic element; 223. Air cylinder; 224. Impact component; 224a. Push-pull solenoid valve; 224b. Compression spring; 225. Piping; 13. Electrically controlled air pressure gauge; 14. Control valve;

[0103] 231. Receiving cylinder; 232. Energy storage spring; 233. Threaded rod; 234. Push block; 235. Fishing net storage cylinder; 236. Magnetic component; 237. Force-applying component; 2351. First cavity; 2352. Second cavity; 2371. Force-bearing part; 2372. Force-applying part; 2371a. Groove. Detailed Implementation

[0104] The following is combined Figures 1 to 36 The technical solutions provided by this invention will be described in more detail below. The descriptions of exemplary embodiments are merely illustrative and are in no way intended to limit this disclosure or its application or use. This disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make this disclosure thorough and complete, and to fully express the scope of this disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0105] The terms “first,” “second,” and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as “including” or “contains” mean that the element preceding the word covers the element listed after the word, and do not exclude the possibility of covering other elements as well.

[0106] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0107] All terms used in this disclosure, including technical or scientific terms, have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0108] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment shall be considered part of the specification.

[0109] The dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Common structural elements or elements of the same kind are given the same reference numerals in the various drawings, and repeated descriptions of them are omitted where appropriate.

[0110] This invention provides a fishing device, including a fishing net 30, a catapult component 20, and a catapult device 10; the catapult component 20 is connected to the open end of the fishing net 30. The fishing net 30 can be an existing product. The specific structure of the catapult device 10 will be described in detail below.

[0111] The launching device 10 includes a power unit 1 and a transmission component 2. The power unit 1 is configured to provide power. The transmission component 2 is connected to the power unit 1 to transmit power to the launching component 20 under the drive of the power unit 1. The launching component 20 is specifically the lead head of the fishing net 30. In places inaccessible to humans, the launching device 10 can be used to cast the net, increasing the convenience of fishing.

[0112] The ejection device 10 includes a power unit 1 and a transmission component 2. The power unit 1 provides power to the entire device; the transmission component 2 connects to the power unit 1 and is responsible for transmitting the power generated by the power unit 1. The ejection component 20 is specifically the lead weight of the fishing net 30, which is the part that ultimately receives the power and is ejected. The lead weight is made of a magnetic metal material such as iron.

[0113] The power unit 1 can employ a spring-storage structure, such as a high-strength spring. The spring constant is designed and selected according to the actual required launch force. One end of the spring is fixed to the frame of the device, and the other end is connected to the transmission component 2. This power unit 1 is used to store elastic potential energy to provide power for launch.

[0114] The transmission component 2 is used to transmit power from the power unit 1 so as to drive the ejection component 20 when needed. Various implementation methods of the transmission component 2 will be introduced later.

[0115] The catapult device 10 can be used in places inaccessible to humans to achieve automatic net casting. Besides its use in fishing net casting in areas inaccessible to humans, the catapult device 10 can also be used in areas with large water surfaces where it is difficult to approach the shore, improving fishing efficiency and flexibility. Furthermore, it can be applied to areas with complex aquatic environments where vessels cannot easily approach, assisting fishermen in completing net casting operations.

[0116] The catapult device 10 provided by the above technical solution solves the problem of difficulty in casting nets in areas inaccessible to humans, greatly expanding the operational range of net casting. Utilizing the design of the power unit 1 and transmission component 2, the catapult force can be precisely controlled, improving the accuracy of net casting. The catapult component 20 adopts a specific structure described later, ensuring the effective deployment of the fishing net 30 and its smooth arrival at the target area during the casting process, thus enhancing the convenience and efficiency of fishing.

[0117] The first embodiment of the ejection device 10 is described below.

[0118] In some embodiments, the power unit 1 includes a motor 11. The transmission component 2 includes a cylinder 211, a lead screw 212, a nut 213, a first elastic element 214, and a magnetic element 215. The motor 11 is mounted at one end of the cylinder 211, and the output shaft of the motor 11 is located inside the cylinder 211. The lead screw 212 is located inside the cylinder 211 and is drivenly connected to the output shaft of the motor 11. The nut 213 is located inside the cylinder 211 and is mounted on the lead screw 212 to move linearly along its own axial direction under the rotation of the lead screw 212. The first elastic element 214 is located inside the cylinder 211 and is sleeved on the outside of the lead screw 212; one end of the first elastic element 214 abuts against the nut 213. The magnetic element 215 includes a through hole 215a, which communicates with the interior of the cylinder 211; the magnetic element 215 is mounted at the end of the cylinder 211 away from the motor 11. When the magnetic component 215 is in a state of maintaining magnetic force, the ejector component 20 is attracted by the magnetic component 215, and the other end of the first elastic component 214 abuts against the ejector component 20.

[0119] The motor 11, as a key component of the power unit 1, is installed at one end of the cylinder 211. The output shaft of the motor 11 extends into the cylinder 211 to provide rotational power and drive the subsequent transmission components 2 to operate.

[0120] The cylinder 211 is the outer shell of the transmission component 2, providing installation space and support for other internal components, and ensuring that each component operates in an orderly manner inside it.

[0121] The lead screw 212 is located inside the cylinder 211 and is driven by the output shaft of the motor 11, converting the rotational motion output by the motor 11 into linear motion to drive the nut 213 to move. The pitch of the lead screw 212 is designed according to the required launching speed and accuracy. For example, a pitch of 1-5 mm can achieve relatively smooth and suitable linear transmission.

[0122] Nut 213 is also located inside cylinder 211 and is mounted on lead screw 212. Through its threaded engagement with lead screw 212, nut 213 can move linearly along its own axis when lead screw 212 rotates. Nut 213 is made of wear-resistant metal, such as copper alloy, to reduce frictional loss between it and lead screw 212.

[0123] The first elastic element 214 is disposed inside the cylinder 211 and sleeved outside the lead screw 212, with one end abutting against the nut 213. It can be a compression spring 224b. When the nut 213 moves under the drive of the lead screw 212, the compression spring 224b will be compressed or extended, storing or releasing elastic potential energy to provide auxiliary power for ejection.

[0124] The magnetic component 215 has a through hole 215a that communicates with the interior of the cylinder 211 and is installed at the end of the cylinder 211 away from the motor 11. The magnetic component 215 can be an electromagnet, and the presence or absence of magnetism can be controlled by energizing and de-energizing it. When in a state of maintaining magnetic force, it can attract the ejector component 20.

[0125] The ejector component 20 is made of a magnetic material so that it can be attracted by the magnetic component 215. For example, the ejector component 20 is a metal block containing iron. The ejector component 20 is always connected to the free end of the fishing net 30 and is ejected to carry the fishing net 30 when the device is working.

[0126] After the motor 11 starts, the output shaft drives the lead screw 212 to rotate. The rotation of the lead screw 212 drives the nut 213 to move linearly along its own axis inside the cylinder 211. During the movement of the nut 213, it compresses the first elastic element 214, storing elastic potential energy. When the ejection device 10 is in its initial state, the magnetic element 215 always has magnetic force, and the ejection component 20 is attracted by the magnetic element 215, with the magnetic force being greater than the elastic force of the first elastic element 214. When ejection is required, the magnetic element 215 is de-energized to lose its magnetic force, and the first elastic element 214 quickly releases its elastic potential energy, pushing the ejection component 20 out of the through hole 215a of the magnetic element 215, thereby driving the fishing net 30 to complete the casting action. It should be noted that if the magnetic element 215 is a permanent magnet, it can also lose its magnetic force through electromagnetic shielding or other methods.

[0127] The above technical solution uses motor 11 as the power source, providing stable and adjustable power, which is more labor-saving and can achieve automated control compared to manual operation. Through the cooperation of various components in the transmission component 2, the effective conversion of power and the storage and release of elastic potential energy are realized, improving the accuracy and force control of the launch. The magnetic component 215 attracts and positions the launch component 20, ensuring the accuracy of the component's position before launch, thereby improving the accuracy of net casting or item delivery.

[0128] In some embodiments, when the ejection device 10 is in its initial state, the nut 213 is located at one end of the cylinder 211, the magnetic element 215 is in a state of maintaining magnetic force, and the first elastic element 214 is not compressed.

[0129] When the ejection device 10 is in the launching state, the nut 213 is located at the other end of the cylinder 211, the first elastic element 214 is compressed, and then the magnetic element 215 is de-energized and loses its magnetic force so that it no longer attracts the ejection component 20. The ejection component 20 is launched under the elastic force of the first elastic element 214.

[0130] When the ejection device 10 is in its initial state, the nut 213 is at one end of the cylinder 211, and the magnetic component 215 is energized to maintain magnetic attraction to the ejection component 20, while the first elastic component 214 is not compressed. When the motor 11 starts, the output shaft drives the lead screw 212 to rotate, and the nut 213 moves axially along the lead screw 212 toward the other end of the cylinder 211, compressing the first elastic component 214 and storing elastic potential energy.

[0131] When nut 213 reaches the other end of cylinder 211, the ejector device 10 is ready to launch. When it is necessary to launch ejector component 20, the magnetic component 215 is de-energized, and the magnetic component 215 loses its magnetic force and no longer attracts ejector component 20. The first elastic component 214 quickly releases its elastic potential energy, ejecting ejector component 20 from through hole 215a of magnetic component 215, thereby driving fishing net 30 to complete the casting action.

[0132] The above technical solution provides that the catapult device 10 has a clearly defined initial state and launch state, making it easy to operate and control. The motor 11 works in conjunction with the transmission component 2 to achieve stable power transmission and conversion, ensuring the reliability of the catapult action.

[0133] The second type of embodiment is described below. In some embodiments, the power unit 1 includes a compressed air source 12 configured to provide compressed gas. The transmission component 2 includes a gas chamber 221, a sealing member 220, a second elastic member 222, an air reservoir 223, and an impact member 224. The gas chamber 221 includes an inlet 221a, a chamber body 221b, and an outlet 221c that are interconnected; the compressed air source 12 is connected to the inlet 221a. The sealing member 220 is located inside the chamber body 221b and at the outlet 221c. The second elastic member 222 is located inside the chamber body 221b and abuts against or is fixedly connected to the sealing member 220. The air reservoir 223 is located outside the gas chamber 221 and is connected to the outlet 221c of the gas chamber 221; the air reservoir 223 is configured to mount the ejection member 20. Impact component 224 is installed on gas chamber 221 or gas cylinder 223; wherein impact component 224 is located outside gas chamber 221 and gas cylinder 223; impact component 224 is configured in the firing state to push open the sealing member 220 to open the gas outlet 221c, so that the compressed gas in gas chamber 221 enters gas cylinder 223.

[0134] The power unit 1 uses a compressed air source 12, which can be an air compressor, capable of continuously and stably providing compressed gas. Its output air pressure is adjusted according to actual launch requirements; for example, the output air pressure can be adjusted within a set range to provide the power foundation for the entire device.

[0135] The gas chamber 221 of the transmission component 2 has an inlet 221a, a chamber body 221b, and an outlet 221c that are interconnected. The inlet 221a is used to connect to the compressed gas source 12, so that the compressed gas enters the chamber body 221b; the chamber body 221b serves as a space for storing compressed gas, and its volume is designed according to the required ejection energy, for example, a volume of 5L-20L; the outlet 221c is connected to the gas cylinder 223 and is the channel for the compressed gas to flow out.

[0136] The sealing component 220 of the transmission component 2 is located inside the chamber 221b and at the air outlet 221c. Its shape is adapted to the air outlet 221c. A round plug made of rubber can be used to seal the air outlet 221c to prevent compressed gas leakage.

[0137] The second elastic element 222 of the transmission component 2 is located inside the chamber 221b and is abutted or fixedly connected to the sealing element 220, for example, a helical spring. The spring stiffness coefficient is selected according to the required sealing force and ejection force. When the compressed gas generates pressure inside the chamber 221b, the spring can resist the sealing element 220 and maintain the closed state of the outlet 221c. At the same time, it can deform under the action of the impact component 224.

[0138] The air cylinder 223 of the transmission component 2 is located outside the gas chamber 221 and communicates with the air outlet 221c of the gas chamber 221, and is used to install the ejection component 20. The volume of the air cylinder 223 is determined according to the gas pressure and volume required by the ejection component 20, so that the compressed gas can provide sufficient power to the ejection component 20 after entering.

[0139] The impact component 224 of the transmission component 2 is installed outside the gas chamber 221 or the gas cylinder 223, and can be, for example, a manually operable push rod structure. In the firing state, the push rod is pushed by external force to open the sealing member 220, thereby opening the gas outlet 221c. The impact component 224 can be one of the following: a push-pull solenoid valve 224a, or a compression spring 224b.

[0140] Compressed gas source 12 fills the gas chamber 221 with compressed gas through inlet 221a, and the pressure inside the chamber gradually increases. At this time, the sealing element 220 blocks the outlet 221c under the action of the second elastic element 222, keeping the gas chamber 221 sealed. When the device is in the launching state, an external force acts on the impact element 224, such as pushing the push rod. The impact element 224 pushes open the sealing element 220, and the outlet 221c opens. The compressed gas in the gas chamber 221 quickly enters the gas cylinder 223. The pressure inside the gas cylinder 223 increases instantaneously, acting on the ejection element 20 installed therein, providing it with power, and causing it to be ejected.

[0141] Furthermore, an electronically controlled pressure gauge 13, a control valve 14, and a pressure sensor can be installed on or upstream of the gas chamber 221 and / or the gas cylinder 223 to monitor the internal pressure and control the pipeline flow in real time. The control system automatically adjusts the supply pressure of the compressed air source 12 based on the pressure data, achieving more precise control of the ejection force. Alternatively, the impact component 224 can be designed as an electric push rod, enabling automated launch via remote control.

[0142] In the above technical solution, the power unit 1 is a compressed gas source 12, responsible for providing compressed gas. The various components of the transmission unit 2 work together to convert the energy of the compressed gas into projectile power. Using the compressed gas source 12 as the power source provides a relatively stable and adjustable power output. The cooperation of the gas chamber 221, the sealing component 220, and the second elastic component 222 effectively stores and controls the release of compressed gas. The design of the impact component 224 makes the launch operation simple and controllable. The overall structure achieves reliable power transmission and projectile function, meeting the projectile requirements in different scenarios.

[0143] In some embodiments, a sealing ring 3 is installed on the outer wall of the ejection component 20, and the sealing ring 3 is interference-fitted with the inner wall of the air cylinder 223.

[0144] The ejection component 20, as the final part of the ejection device 10 to perform the ejection action, has a sealing ring 3 installed on its outer wall. This sealing ring 3 can be made of rubber, possessing good elasticity and sealing performance. Through the sealing ring 3, the ejection component 20 forms an interference fit with the inner wall of the air cylinder 223. The interference amount is designed according to actual needs; for example, the outer diameter of the sealing ring 3 is 0.5-1 mm larger than the inner diameter of the air cylinder 223. The function of this interference fit is that when compressed gas enters the air cylinder 223 from the gas chamber 221, the sealing ring 3 effectively prevents gas leakage from the gap between the ejection component 20 and the inner wall of the air cylinder 223, ensuring that the pressure inside the air cylinder 223 can be concentrated on the ejection component 20, thereby improving the efficiency and stability of the ejection and ensuring that the ejection component 20 can obtain sufficient power to be successfully ejected. At the same time, the sealing ring 3 also plays a certain buffering role, reducing the vibration and friction loss generated when the ejection component 20 moves within the air cylinder 223, and extending the service life of the device.

[0145] In some embodiments, there are multiple air cylinders 223, which are fixedly connected, and each air cylinder 223 is connected to the air outlet 221c through its own separate pipe 225.

[0146] In this embodiment, there are multiple air cylinders 223. These air cylinders 223 can be made of high-strength aluminum alloy, lightweight and high-strength engineering plastics, or other similar lightweight and durable materials to ensure their structural strength and durability. Multiple air cylinders 223 are fixedly connected to each other, for example, by welding or bolting to form an integral structure, ensuring that they can operate stably and collaboratively during operation.

[0147] Each gas cylinder 223 is connected to the outlet 221c of the gas chamber 221 via its own separate pipe 225. These pipes 225 are made of pressure-resistant rubber tubing, and their inner diameter is selected according to the actual gas flow and pressure requirements, for example, an inner diameter of 5-25 mm, to ensure that compressed gas can flow smoothly from the gas chamber 221 into each gas cylinder 223.

[0148] When the impact component 224 pushes open the sealing component 220 and the air outlet 221c opens, compressed gas simultaneously enters multiple air cylinders 223 through individual pipes 225. A fishing net 30 is equipped with multiple ejector components 20, and each air cylinder 223 is equipped with a corresponding ejector component 20. Multiple ejector components 20 are ejected simultaneously or at different times as needed to spread the fishing net 30 for catching fish. This depends on the triggering design of the ejector component 20 within each air cylinder 223. For example, an independent triggering device can be installed on each air cylinder 223 to achieve individual control over the ejection timing of each ejector component 20.

[0149] To better control the pressure and ejection force within each air cylinder 223, a flow regulating valve can be installed on each pipeline 225. By adjusting the valve opening, the gas flow rate entering each air cylinder 223 can be controlled, thereby precisely controlling the ejection force of each ejection component 20. An electronic control system can also be integrated into each air cylinder 223 to achieve remote intelligent control of the ejection timing and force.

[0150] The design of multiple air tanks 223 increases the ejection capacity and flexibility of the device, enabling the simultaneous or time-sharing ejection of multiple components to meet diverse needs in different scenarios. Separate pipe connections 225 ensure relatively independent gas supply within each air tank 223, allowing for individual adjustment of the ejection parameters for each ejection component 20, thus enhancing the device's precision control and practicality.

[0151] In some embodiments, the gas cylinders 223 are arranged in a circle, and the central axis of each gas cylinder 223 is oriented away from the central axis of the gas chamber 221; each gas cylinder 223 is equipped with a corresponding ejection component 20.

[0152] In the aforementioned scheme, multiple air cylinders 223 are arranged circumferentially around the gas chamber 221 and are tightly and fixedly connected to each other, forming an umbrella-like structure that expands outward. The central axis of each air cylinder 223 is offset from the central axis of the gas chamber 221, for example, by an angle between 5° and 30°, the specific angle being set according to the actual launch direction requirements. Each air cylinder 223 is equipped with a corresponding launch component 20, which, after being launched, causes the fishing net 30 to open as wide as possible.

[0153] When the impact component 224 pushes open the sealing component 220, the gas outlet 221c of the gas chamber 221 opens, and compressed gas enters each gas cylinder 223 synchronously through individual pipelines. Due to the design of the central axis orientation of the gas cylinder 223, the ejection component 20 inside each gas cylinder 223 will be ejected in different directions. In a net-casting scenario, it is possible to cast the net in multiple different directions around the gas chamber 221 as the center, thereby expanding the net coverage area.

[0154] Optionally, an angle fine-tuning device, such as a small electric rotary joint, can be installed on each air cylinder 223. The deviation angle of the central axis of the air cylinder 223 can be flexibly adjusted through the control system to adapt to different ejection direction requirements. Pressure distributors can also be installed at the connection between the gas chamber 221 and each pipeline to adjust the gas pressure entering each air cylinder 223 according to actual needs, thereby controlling the ejection force of the ejection components 20 in different directions.

[0155] The aforementioned technical solution, with its circumferentially shaped air cylinder 223 offset from its central axis, allows the ejection device 10 to eject components 20 in multiple different directions, significantly expanding the ejection coverage area. Each air cylinder 223 independently mounts the ejection component 20, and by controlling the gas pressure and the angle of the air cylinder 223, precise adjustment of the ejection force and angle in different directions can be achieved, greatly enhancing the applicability and effectiveness of the device in complex scenarios.

[0156] In some embodiments, when the ejection device 10 is in its initial state, the second elastic member 222 is compressed, and the sealing member 220 is pressed against the air outlet 221c by the second elastic member 222 to block the air outlet 221c; the impact member 224 moves away from the sealing member 220.

[0157] When the ejection device 10 is in the launching state, the impact component 224 applies a force to the sealing component 220 in the opposite direction to the elastic force of the second elastic component 222, so as to overcome the elastic force of the second elastic component 222, push open the sealing component 220, and allow the compressed gas in the gas chamber 221 to enter the air cylinder 223, so as to eject the ejection component 20 installed in the air cylinder 223.

[0158] When the ejection device 10 is in its initial state, the second elastic element 222 is pre-compressed under the action of compressed gas. The second elastic element 222 is a high-strength spring, and its stiffness coefficient is precisely calculated and selected according to the actual required sealing force to ensure that the sealing element 220 can be reliably pressed against the air outlet 221c, effectively sealing the air outlet 221c and preventing compressed gas leakage from the gas chamber 221. At this time, the impact component 224 is away from the sealing element 220 and is in a non-working position, and the entire device is in its initial state.

[0159] When the ejection device 10 enters the firing state, an external force acts on the impact component 224, causing it to move towards the sealing component 220. The impact component 224 can be, for example, a push rod manually controlled by an operator, or an actuator driven by electric or pneumatic means. The impact component 224 applies a force to the sealing component 220 in the opposite direction to the elastic force of the second elastic element 222. As the force increases, it gradually overcomes the elastic force of the second elastic element 222. When the force is large enough, it pushes open the sealing component 220, and the air outlet 221c is opened. The compressed gas stored in the gas chamber 221, under the action of the pressure difference, rapidly enters the air cylinder 223 through the air outlet 221c. The pressure inside the air cylinder 223 increases instantaneously, acting on the ejection component 20 installed therein, providing it with a strong thrust, thereby ejecting the ejection component 20.

[0160] In the initial state, the compressive force of the second elastic element 222 ensures the seal of the sealing element 220 on the air outlet 221c, maintaining the storage of compressed gas in the gas chamber 221. During launch, the impact element 224 applies external force to overcome the elastic force of the second elastic element 222, opening the air outlet 221c and transferring the compressed gas to the gas cylinder 223, thereby propelling the ejection element 20 to complete the ejection action. Thus, the ejection device 10 can realize the complete process from energy storage to energy release, ensuring reliable execution of the ejection action.

[0161] The aforementioned technical solution enables the ejection device 10 to stably store compressed gas in its initial state, ensuring effective energy reserves. During launch, the interaction between the impact component 224 and the second elastic element 222 achieves precise control over the opening of the exhaust port 221c, thereby accurately controlling the timing of compressed gas release and the launch timing of the ejection component 20. This precise control improves the reliability and practicality of the ejection device 10, meeting the requirements for timeliness and accuracy of ejection operations in different scenarios.

[0162] This invention also provides a fishing device, including a fishing net 30, a launching component 20, and a launching device 10 provided by any of the technical solutions of this invention; the launching component 20 is connected to the open end of the fishing net 30; the launching component 20 is configured to be launched via a transmission component 2 under the action of a power unit 1 to open the fishing net 30. The following describes three different implementation methods as examples; the first set of embodiments is described below. Figure 1-3 , Figures 13 to 20 The fishing device in the example uses a motor 11 as the launching power and a solenoid valve as the trigger for the injection. See the second set of embodiments. Figure 4-5 , Figures 21 to 28 The fishing device in the example uses compressed air as the launching power and a push-pull solenoid valve 224a as the component that triggers the injection. See the third set of embodiments. Figure 6-7 , Figures 29 to 36 The fishing device in the middle uses an electric motor as the launching power and a compression spring 224b as the trigger for the jet.

[0163] The fishing device includes a fishing net 30, a catapult component 20, and the aforementioned catapult device 10. The catapult device 10 includes a power unit 1 and a transmission component 2, and is the core component that provides catapult power; the catapult component 20 is connected to the open end of the fishing net 30 and can drive the fishing net 30 to unfold under the action of catapult power; the fishing net 30 is the component that ultimately realizes the fishing function.

[0164] Fishing Net 30 is woven from high-strength nylon thread, offering excellent flexibility and abrasion resistance. The mesh size is selected based on the target fish species; for example, for common freshwater fish, the mesh size is 10-35 cm. Fishing Net 30 is conical in shape with a larger open end, allowing it to open easily during launch and catch more fish.

[0165] The ejection component 20 is connected to the open end of the fishing net 30 by a sturdy rope, ensuring it will not detach during ejection. Its streamlined shape, such as a spindle, reduces air resistance during ejection. The ejection component 20 has sufficient weight to effectively propel the fishing net 30 into flight under the force of the ejection.

[0166] The power unit 1 of the ejection device 10 can be a compressed air source 12. The compressed air source 12 can be a portable air pump, and its output air pressure can be adjusted within a certain range, such as 0.6-1.2MPa, to adapt to different ejection distance requirements.

[0167] The transmission component 2 is exemplified by a structure consisting of a gas chamber 221, a sealing element 220, a second elastic element 222, a gas cylinder 223, and an impact element 224. The gas chamber 221 is made of metal, possessing good pressure resistance; its volume is determined based on the required amount of compressed gas to be stored, such as 2-20L. The sealing element 220 is made of rubber and fits tightly against the outlet 221c to ensure gas sealing. The second elastic element 222 is a spring, its stiffness coefficient set according to the required sealing force and ejection force. The gas cylinder 223 is adapted to the ejection component 20, with a smooth inner wall to reduce friction during the movement of the ejection component 20. The impact element 224 can be a linear solenoid valve, a manual push rod, etc., offering simple and convenient operation.

[0168] First, the power unit 1 of the ejection device 10, such as the compressed air source 12, fills the gas chamber 221 with compressed gas. At this time, the second elastic element 222 is in a compressed state, and the sealing element 220 blocks the air outlet 221c under the elastic force of the second elastic element 222. The gas chamber 221 stores compressed gas. When preparing to catch fish, the operator triggers the impact component 224. The impact component 224 applies a force to the sealing component 220 in the opposite direction to the elastic force of the second elastic element 222, overcoming the elastic force of the second elastic element 222 and pushing the sealing component 220 open. The compressed gas in the gas chamber 221 enters the air cylinder 223, pushing the ejection component 20 installed in the air cylinder 223 to be launched. Since the ejection component 20 is connected to the open end of the fishing net 30, the ejection component 20 drives the fishing net 30 to unfold during the launch process. The fishing net 30 gradually opens during flight and falls into the water to catch fish.

[0169] Sensors, such as sonar or optical sensors, or cameras, can be installed on the fishing net 30 to detect the location of fish schools. This information is transmitted wirelessly to the control system of the launching device 10, which then precisely adjusts the launching direction and force based on the fish's location. An automatic reel can also be provided to automatically retrieve the fishing net 30 after fishing is complete. The automatic reel uses an electrically driven reel connected to the net's reel rope. Through a winding action, the reel rope is wound onto the automatic reel. The reeling action of the automatic reel mimics the reeling action of a hand-thrown fishing net. The fishing net is retrieved using only one rope, and the automatic reel also winds around this rope.

[0170] The fishing device provided by the above technical solution can be used not only in ordinary waters, but also in waters with complex terrain, such as lakes and rivers with many reefs or inaccessible shorelines. The fishing net 30 is launched to a suitable location via the catapult device 10, improving fishing efficiency. In large-area fishponds, it can be used for dispersed harvesting of farmed fish, reducing disturbance to the fish population.

[0171] The above technical solution combines the catapult device 10 with the fishing net 30, solving the problem of difficulty in manually casting nets in some special waters and expanding the fishing range. The precise power control and catapult process of the catapult device 10 enable the fishing net 30 to accurately reach the target area and effectively deploy, improving the success rate of fishing. The reliable connection between the fishing net 30 and the catapult component 20, as well as the reasonable design of the overall device, ensure the stability and durability of the fishing device in actual use.

[0172] In some embodiments, the ejection component 20 is configured to be asymmetrical along its own axis to move outward after being ejected to form a net-catching space; or, the ejection component 20 includes an offset tail fin to move outward after being ejected to form a net-catching space; or, the ejection component 20 includes two or more materials of different weights to move outward after being ejected to form a net-catching space.

[0173] The ejection component 20 can be implemented in a variety of different ways.

[0174] Optionally, the ejection component 20 can adopt an asymmetrical shape. The ejection component 20 is designed with an asymmetrical shape along its own axis, for example, its front end is pointed and thin, while its rear end is relatively wide and thick. This shape can be a streamlined shape with one side relatively flat and the other side having a certain curvature. High-strength and lightweight alloy materials, such as aluminum alloy, are used to ensure that the strength requirements are met while reducing weight, which is beneficial for ejection. The asymmetrical shape design causes the air to exert different forces on its two sides after it is launched, thus generating an outward offset force, which drives the connected fishing net 30 to move outward, forming a net-catching space.

[0175] When the ejector component 20 is launched from the air cylinder 223 of the ejector device 10, during flight, due to the asymmetrical shape causing aerodynamic imbalance, the air force on the wider and thicker side is greater than that on the narrower side, causing the ejector component 20 to generate an outward lateral force. This lateral force pushes the ejector component 20 and the connected fishing net 30 to one side. As the ejector component 20 flies, the fishing net 30 is gradually pulled open, forming a net-catching space.

[0176] The asymmetrically shaped catapult component 20 cleverly utilizes aerodynamic principles to enable the outward deployment of the fishing net 30 without additional complex structures, forming a net-catching space. This simplifies the device structure, improves the device's reliability, and reduces manufacturing costs.

[0177] Optionally, a catapult component 20 with an offset tail fin can also be used. Specifically, the catapult component 20 is equipped with an offset tail fin, which is typically made of a lightweight and tough composite material, such as carbon fiber reinforced plastic. The tail fin is positioned off-axis from the central axis of the catapult component 20, and there is a certain angle between the tail fin and the main body of the catapult component 20, for example, 5°-30°. The shape of the tail fin can be triangular or trapezoidal to provide effective aerodynamic effects. When the catapult component 20 is launched, the tail fin generates lateral force under the action of airflow, causing the catapult component 20 to move outward, thereby causing the fishing net 30 to unfold and form a net-catching space.

[0178] After the ejection component 20 is launched from the ejection device 10 and enters the airflow, the offset tail fin interacts with the airflow. Due to the offset and specific angle of the tail fin, the airflow generates a lateral force on the tail fin. This lateral force causes the ejection component 20 to generate a rotational torque around its center of gravity, thereby changing its flight direction and moving it towards the side where the tail fin is offset. During the movement of the ejection component 20, the connected fishing net 30 is gradually pulled open, forming a net-catching space.

[0179] The ejection component 20 adopts an offset tail fin design, which provides the ejection component 20 with a precisely controllable lateral force. This enables more accurate control over the direction and angle of the fishing net 30's deployment, improving the accuracy of the net's catch space formation and helping to catch fish more effectively in different environments and fish distribution conditions.

[0180] Optionally, the ejection component 20 comprises materials of different weights. The ejection component 20 is composed of two or more materials of different weights; for example, the front end uses a high-density heavy metal, such as tungsten, while the rear end uses a low-density lightweight material, such as engineering plastics. These different materials are firmly bonded together using special joining processes, such as injection molding or metal welding. This weight distribution difference causes the ejection component 20 to change its flight attitude after being launched due to the shift in its center of gravity, thus moving outwards and pulling the fishing net 30 to form a net-catching space.

[0181] After the ejection component 20 leaves the ejection device 10, due to the weight difference between its front and rear ends, its center of gravity shifts towards the heavier front end. During flight, the interaction between the air force on the ejection component 20 and its center of gravity position causes the ejection component 20 to rotate and shift laterally. The lighter rear end lags behind the front end due to air resistance, causing the ejection component 20 to shift to one side, thereby pulling the fishing net 30 out and creating a net-catching space.

[0182] By using different combinations of materials of varying weights to change the center of gravity of the catapult component 20, the fishing net 30 can be deployed outwards. This design concept is simple and direct. By rationally selecting materials and weight distribution, the flight attitude of the catapult component 20 and the deployment effect of the fishing net 30 can be flexibly adjusted to adapt to different fishing scenarios and needs.

[0183] See Figures 13 to 20 Taking the implementation of the ejector device 10 using the motor 11 described above as an example, multiple ejector devices 10 cooperate to open a fishing net 30. In some embodiments, the fishing device also includes a fishing net mounting body 40, on which the top of the fishing net 30 and the ejector device 10 are mounted; the power unit 1 of the ejector device 10 includes a motor 11; there are multiple ejector devices 10, which are arranged at intervals along the circumference of the fishing net mounting body 40.

[0184] The fishing device includes a fishing net 30, a catapult component 20, a catapult device 10, and a fishing net mounting body 40. The fishing net mounting body 40 serves as the basic support structure, on which the top of the fishing net 30 and multiple catapult devices 10 are mounted. Each catapult device 10 includes a motor 11 as the power unit 1. Multiple catapult devices 10 are distributed circumferentially along the fishing net mounting body 40, working together to drive the fishing net 30 to unfold.

[0185] The fishing net mounting body 40 can be made of a sturdy metal material, such as stainless steel, possessing good corrosion resistance and structural strength, capable of withstanding the force generated by the catapult device 10 during launch and the tension during the unfolding of the fishing net 30. Its shape can be disc-shaped or polygonal, such as hexagonal, with the diameter or side length determined according to actual fishing needs and portability; for example, a diameter of 30-100 cm. Multiple mounting positions are evenly arranged around its circumference for mounting the catapult device 10.

[0186] The ejection device 10 can be implemented in any of the embodiments described above.

[0187] The top of the fishing net 30 is securely fixed to the center of the fishing net mounting body 40 using ropes, levers, or buckles. The fishing net 30 is made of high-strength nylon thread, and the mesh size is adjusted according to the target fish species. For example, when catching adult crucian carp, the mesh size is set to 1-4 centimeters. The fishing net 30 is cone-shaped with a large opening at the bottom, allowing it to fully unfold under the action of the ejection device 10, creating a large fishing space.

[0188] When the fishing device is ready to operate, the motors 11 of each launching device 10 are activated, driving the transmission components 2 to store energy in the launching components 20. Once the predetermined launching conditions are met, multiple launching devices 10 simultaneously or in a set sequence launch the launching components 20. Since the launching components 20 are connected to the fishing net 30, and the multiple launching devices 10 are arranged circumferentially at intervals, as the launching components 20 are launched in all directions, they simultaneously cause the fishing net 30 to unfold from the center outwards, gradually forming a large circular or polygonal netting space during flight, which then falls into the water to catch fish.

[0189] Optionally, an angle adjustment mechanism can be installed on each catapult 10 to change the catapult direction via a motor 11 or manual adjustment, making the unfolded shape of the fishing net 30 more flexible. Sensors, such as ultrasonic sensors, can also be integrated into the fishing net mounting body 40 to detect the location of fish schools. The control system can then adjust the catapult force and angle of each catapult 10 to precisely control the unfolded position and shape of the fishing net 30, thereby improving fishing efficiency.

[0190] The above technical solution is suitable for fishing in large bodies of water, such as lakes and reservoirs. Multiple catapult devices 10 working in concert can quickly deploy fishing nets 30 over a large area, covering more regions. In some aquaculture ponds, by adjusting the parameters of the catapult devices 10, fishing nets 30 with different mesh sizes can be used to target fish in specific areas, reducing the impact on fish populations in other areas.

[0191] The fishing net mounting body 40 provides a stable support structure for the entire device, ensuring that all components work in an orderly and coordinated manner. Multiple catapult devices 10 are arranged circumferentially, which can evenly spread the fishing net 30 in all directions, forming a larger and more regular netting space and increasing the fishing coverage area. The motor 11, as the power unit 1, provides stable and easily controllable power, allowing for easy adjustment of the catapult force and frequency according to actual conditions, thus enhancing the adaptability and practicality of the device.

[0192] If the ejection device 10 adopts the compressed air source 12 implementation method described above, one ejection device 10 can deploy one fishing net 30. In some embodiments, the power unit 1 of the ejection device 10 includes a compressed air source 12, and each fishing net 30 is correspondingly installed on one ejection device 10.

[0193] Fishing net 30 is woven from tough polyethylene material, possessing excellent tear resistance and water resistance. The mesh size is adjusted according to the fish species being caught; for example, for small to medium-sized freshwater and saltwater fish, the mesh size is set at 3-5 cm. Fishing net 30 is tapered, with a tapered top and a connecting part for connection to the catapult device 10, and a large opening at the bottom to allow it to fully open during catapult launch, creating an effective fishing space.

[0194] The above technical solution uses compressed air source 12 as the power unit 1, which can provide strong and stable power to ensure that the catapult component 20 can quickly and forcefully open the fishing net 30, forming a larger net-catching space and improving the success rate of fishing. The design of one catapult device 10 corresponding to one fishing net 30 makes the device structure relatively simple, easy to operate, maintain and carry. At the same time, the reasonable design and material selection of each component ensures the reliability and durability of the device in different aquatic environments.

[0195] See Figures 6 to 12 In the third embodiment of the ejection device 10, the power unit 1 includes a motor, specifically a stepper motor, to achieve precise control. The transmission component 2 includes a receiving cylinder 231, a storage spring 232, a threaded rod 233, a push block 234, a fishing net receiving cylinder 235, a magnetic component 236, and a force-applying component 237.

[0196] The power unit 1 is installed on the outside of the receiving cylinder 231 and is fixedly connected to the receiving cylinder 231.

[0197] The energy storage spring 232 is installed inside the receiving cylinder 231. The length and strength of the energy storage spring 232 are set based on experience.

[0198] The threaded rod 233 is driven to rotate by the power unit 1. Specifically, the push block 234 is threaded to the threaded rod 233 and moves linearly along the axial direction of the threaded rod 233 as the threaded rod 233 rotates.

[0199] The fishing net storage tube 235 includes a first cavity 2351 and multiple second cavities 2352, each of which is connected to the first cavity 2351 and is spaced apart on the outer periphery of the first cavity 2351. Both ends of the first cavity 2351 are open; each of the second cavities 2352 is equipped with a catapult component 20.

[0200] The magnetic component 236 is fixedly installed inside the first cavity 2351. The magnetic component 236 is specifically an electromagnet.

[0201] The force-applying component 237 is movably installed inside the fishing net storage cylinder 235 along the axial direction of the fishing net storage cylinder 235; the force-applying component 237 is configured to apply a launching force to the ejection component 20.

[0202] The storage spring 232 is located between the push block 234 and the force-applying component 237. When the magnetic component 236 is in a state of maintaining magnetic force, the magnetic component 236 and the force-applying component 237 are attracted together. The presence or absence of magnetic force in the magnetic component 236 can be controlled by controlling whether the magnetic component 236 is energized or de-energized.

[0203] In some embodiments, the force-applying member 237 includes a fixedly connected force-bearing part 2371 and a force-applying part 2372. There are multiple force-applying parts 2372, and each force-applying part 2372 is installed on the circumferential edge of the force-bearing part 2371. The force-bearing part 2371 is located inside the first cavity 2351, and each force-applying part 2372 corresponds to a second cavity 2352.

[0204] In some embodiments, the load-bearing portion 2371 is provided with a groove 2371a on the side facing the storage spring 232 to accommodate the end of the storage spring 232.

[0205] The operation process is as follows: The power unit 1 (motor) starts, driving the threaded rod 233 to rotate. The push block 234 moves linearly along the axial direction due to its threaded connection with the threaded rod 233. The push block 234 pushes the storage spring 232, causing the storage spring 232 to be compressed. The storage spring 232 then transmits the force to the force-applying component 237. When the magnetic component 236 maintains its magnetic force, the force-applying component 237 is attracted and fixed. When ejection is required, the magnetic force of the magnetic component 236 is released, and the elastic force of the storage spring 232 pushes the force-applying component 237. The force-applying part 2372 of the force-applying component 237 applies ejection force to the ejection component 20 in each of the second cavities 2352, completing the ejection action.

[0206] In different launch scenarios, the launch force can be adjusted by replacing the springs 232 with different elastic coefficients. Alternatively, the size of the fishing net storage tube 235 can be changed to accommodate more or different sizes of launch components 20, depending on the usage environment.

[0207] The above technical solution makes the power transmission of the catapult device 10 relatively stable. By driving the threaded rod 233 to rotate via the motor, the push block 234 can be moved, and the power accumulation process can be precisely controlled. The attraction between the magnetic component 236 and the force-applying component 237 allows for flexible control of the catapult action. The special structural design of the force-applying component 237 can simultaneously apply catapult force to multiple catapult components 20, improving catapult efficiency.

[0208] As described above, embodiments of the present invention also provide a fishing system, including the fishing device provided by any of the technical solutions of the present invention.

[0209] The fishing system provided by the above technical solution can have a fishing device that uses multiple catapults 10 powered by an electric motor 11 to coordinately open the fishing net 30, or it can use a single catapult 10 powered by a compressed air source 12 to open a single fishing net 30, depending on the specific configuration of different embodiments. Furthermore, other auxiliary equipment can be added to the fishing system according to actual needs.

[0210] In addition, some auxiliary equipment can be added, such as positioning equipment and monitoring equipment.

[0211] Positioning devices, such as a Global Positioning System (GPS) module, can be installed on the fishing net mounting body 40 or the ejector device 10 to determine the location of the fishing device in real time. This helps fishermen understand the deployment location of the fishing net 30, especially in large bodies of water or complex environments, facilitating subsequent retrieval and recovery of the fishing net 30.

[0212] Monitoring equipment, such as water quality sensors, can be installed on the fishing net 30 to monitor water quality parameters in real time, such as pH and dissolved oxygen levels. This data is crucial for determining fish distribution and habitat, helping fishermen choose more suitable fishing locations and times.

[0213] The above technical solution takes the operation of a fishing device based on compressed air source 12 in a fishing system as an example. First, compressed air source 12 fills the gas chamber 221 of the ejector device 10 with compressed gas and keeps it sealed to store energy. When preparing to fish, the operator triggers the impact component 224, opens the air outlet 221c, and the compressed gas enters the air cylinder 223, pushing the ejector component 20 out, which in turn causes the fishing net 30 to open and fall into the water to catch fish. During the fishing process, if a positioning device is equipped, the GPS module records the location information of the fishing device in real time; if a monitoring device is provided, the water quality sensor collects water quality data in real time and can transmit it to the fisherman's terminal device.

[0214] In addition, a remote control function can be added, allowing fishermen to remotely control the launch device 10 and adjust its launch force from the shore or on the boat via a wireless communication module. An intelligent analysis system can also be added to integrate and analyze data from positioning and monitoring equipment, combining it with historical fishing data to provide fishermen with functions such as fish distribution prediction and optimal fishing location recommendations.

[0215] The aforementioned technical solutions are widely applicable to fishing scenarios of all scales, from small-scale individual fishermen operating in rivers and lakes to large-scale fishing companies engaging in marine fishing activities. In scientific research and monitoring scenarios, the fishing system can be used to collect fish samples from different waters, and combined with environmental data obtained from monitoring equipment, it can support ecological research.

[0216] The aforementioned technical solutions can not only facilitate fishing but also enhance the intelligence and precision of fishing operations by adding auxiliary equipment and expanding functionality. Positioning and monitoring equipment provides fishermen with more information, helping to improve fishing efficiency while better protecting the aquatic ecosystem. Remote control and intelligent analysis systems further optimize the fishing process, reduce labor costs, and enhance the adaptability and competitiveness of the entire fishing system in different scenarios.

[0217] In some embodiments, the fishing system further includes a buoy 50 and a drive mechanism 60. The fishing device is mounted on the buoy 50. The drive mechanism 60 is mounted on the buoy 50 to drive the buoy 50 to move on the water surface.

[0218] The fishing system includes a fishing device, a buoy 50, and a drive mechanism 60. The fishing device is responsible for performing net fishing operations, the buoy 50 provides a floating support platform for the fishing device, and the drive mechanism 60 is used to drive the buoy 50 to move on the water surface, enabling the fishing system to flexibly reach different water locations for fishing operations.

[0219] Fishing devices, as described in detail above, have corresponding structural features and functions to achieve efficient net fishing.

[0220] The pontoon 50 is made of high-density polyethylene, a material with excellent buoyancy, corrosion resistance, and impact resistance. The pontoon 50 has a rectangular or boat-like structure, with dimensions determined by the size of the fishing equipment and actual load-bearing requirements, for example, 2 meters long, 1.5 meters wide, and 0.8 meters high. The pontoon 50 has multiple mounting positions for securely installing the fishing equipment, and internal compartments can be added to enhance its structural stability and safety.

[0221] The drive mechanism 60 can be powered by either an electric motor or a small internal combustion engine. If an electric motor is used, it is equipped with a large-capacity lithium battery pack, providing continuous and stable power output, and is environmentally friendly and low-noise. If a small internal combustion engine is selected, its power is determined according to the size of the float 50 and the required sailing speed, for example, 5-10 horsepower, which can provide strong power.

[0222] The propeller can be a propeller-type thruster, installed below the stern of the float 50. The propeller's size and blade shape are optimized to improve propulsion efficiency; for example, the diameter is 20-70 cm, and the blade angle is adjusted according to actual needs. The propeller is connected to the power source via a drive shaft, converting power into thrust that propels the float 50 forward.

[0223] The steering mechanism can be a combination of a servo motor and a steering rudder. The servo motor is installed inside the float 50. By controlling the rotation angle of the servo motor, the steering rudder is driven to swing left and right, thereby changing the direction of travel of the float 50. The steering rudder is generally made of lightweight, high-strength materials, such as fiberglass, to ensure flexible rotation in water and resistance to damage.

[0224] The power source of the drive mechanism 60 is activated, driving the propeller to rotate and generating thrust to move the pontoon 50 on the water surface. The operator can control the direction of the pontoon 50 via the steering mechanism, guiding it towards the target fishing area. Once at the appropriate position, the fishing device is activated to cast the net. Taking a fishing device based on compressed air source 12 as an example, compressed gas propels the ejector component 20, causing the fishing net 30 to unfold and fall into the water to catch fish. Throughout the process, the pontoon 50 provides a stable platform on the water for the fishing device, ensuring the smooth operation of the fishing operation.

[0225] Optionally, an automatic navigation system can be installed on the pontoon 50, combining GPS positioning technology and preset route planning to enable the pontoon 50 to automatically travel to the designated fishing area, reducing manual operation intensity and improving fishing efficiency. An intelligent speed regulation system is added to the drive mechanism 60 to automatically adjust power output based on environmental factors such as water flow speed and wind direction, ensuring the pontoon 50 maintains a stable speed and direction.

[0226] The aforementioned technical solution allows the fishing system to quickly reach different areas for fishing in large bodies of water such as oceans, lakes, and reservoirs, utilizing the mobility of the pontoon 50, thus expanding the fishing range. In nearshore areas, for small-scale fishing operations, this fishing system can flexibly move between different sea areas, adapting to the changing marine environment and improving the flexibility and adaptability of fishing operations.

[0227] The aforementioned technical solution, through the buoy 50 and drive mechanism 60, significantly enhances the maneuverability and flexibility of the fishing system. The buoy 50 provides reliable water support for the fishing device, ensuring stability under various water conditions. The drive mechanism 60 enables the fishing system to actively seek more suitable fishing locations, breaking through the limitations of traditional fixed-location fishing and effectively improving fishing efficiency and success rate. Extended functions such as automatic navigation and intelligent speed regulation further optimize the performance of the fishing system, reduce the difficulty of manual operation, and enhance its operational capabilities in complex water environments.

[0228] In some embodiments, the fishing system further includes a first support frame 70, which is variably mounted on the buoy 50; the fishing device is mounted on the buoy 50 via the first support frame 70.

[0229] The fishing system provided by the above technical solution adds a first support frame 70. The first support frame 70 is variably mounted on the buoy 50, and the fishing device is connected to the buoy 50 via the first support frame 70, making the entire system structure more flexible and further enhancing its functionality.

[0230] The first support frame 70 can be made of metal, such as high-strength aluminum alloy, to ensure sufficient strength and rigidity to withstand the forces generated by the fishing device during launch. It mainly consists of a telescopic support rod and connecting joints. The support rod can be designed as a multi-section nested structure, for example, composed of three nested aluminum alloy tubes of different diameters. An internal locking device allows for the telescopic adjustment of the support rod, thereby changing the height of the support frame. The connecting joints combine rotary and hinged joints. The rotary joints allow for 360° rotation, enabling flexible adjustment of the support frame's angle in the horizontal direction; the hinged joints allow the support frame to swing at a certain angle in the vertical plane, for example, from 30° to +30°, thus achieving a variable amplitude function.

[0231] The bottom of the first support frame 70 is firmly fixed to a specific position of the buoy 50 by means of bolts or welding, such as one side edge or the center of the buoy 50, which is determined according to the layout of the fishing device and the balance of the system center of gravity.

[0232] The fishing device, implemented as described above, whether using a single launcher 10 based on a compressed air source 12 to open a fishing net 30, or multiple launchers 10 with a motor 11 as the power unit 1 to coordinate the opening of the fishing net 30, is connected to the float 50 via the first support frame 70. For example, in a fishing device based on a compressed air source 12, its gas chamber 221 or air cylinder 223 can be connected to the first support frame 70 via specially designed clamps or connectors to ensure a stable connection.

[0233] The dimensions and structure of the pontoon 50 and the drive mechanism 60 are as described above. The power source, propeller, and steering mechanism of the drive mechanism 60 retain their original functions and characteristics, providing power and directional control for the movement of the pontoon 50 on the water surface.

[0234] Before fishing operations, the first support frame 70 can be adjusted according to the actual situation. If it is necessary to launch the fishing net 30 to a more distant or specific angle, the height of the support frame can be changed by adjusting the extension length of the support rod, and the angle of the support frame can be adjusted using the rotary joint and hinge joint to position the fishing device in a suitable position and posture. Subsequently, the drive mechanism 60 pushes the float 50 to the target fishing area. Upon arrival, the fishing device is activated to cast the net. For fishing devices based on compressed air source 12, compressed gas pushes the ejection component 20 to launch the net, causing the fishing net 30 to open and fall into the water. Throughout the process, the flexible amplitude function of the first support frame 70 allows the fishing device to better adapt to different aquatic environments and fishing needs, while the float 50 and drive mechanism 60 ensure the mobility and stability of the system.

[0235] Optionally, the first support frame 70 is equipped with an electric adjustment device, allowing for remote electric adjustment of the support frame's height and angle via a control panel or remote control, improving operational convenience and precision. A shock-absorbing device, such as a rubber shock-absorbing pad or a spring shock absorber, is installed at the connection point between the first support frame 70 and the fishing device to reduce the vibration impact on the float 50 during the fishing device's launch process, thereby improving system stability and service life.

[0236] The above-described technical solution, in shallow or coastal waters, allows the fishing device to be closer to the water surface or tilted at a certain angle by adjusting the height and angle of the first support frame 70, improving the accuracy and coverage of net casting and preventing the fishing net 30 from being caught on shore obstacles. In windy and wavy waters, the amplitude-adjusting function of the first support frame 70 allows the fishing device to be adjusted to a suitable position, reducing the interference of wind and waves on net casting operations and ensuring the smooth progress of fishing operations.

[0237] The aforementioned technical solution, with its 70° variable-amplitude installation design for the first support frame, significantly enhances the adaptability and flexibility of the fishing system. It can precisely adjust the position and angle of the fishing device according to different aquatic environments, wind direction, water flow, and other factors, improving the accuracy and effectiveness of net casting and thus increasing fishing efficiency. Simultaneously, the expanded electric adjustment and shock absorption devices further optimize system performance, reduce manual operation intensity, and lower wear and tear on system components, enabling the fishing system to operate stably and reliably under various complex conditions.

[0238] In some embodiments, the fishing system further includes a water divider 80, which is installed on the float 50 to reduce resistance during the movement of the float 50.

[0239] The fishing system provided by the above technical solution adds a water divider 80 to the embodiment described above. The water divider 80 is installed on the buoy 50 and works in conjunction with other components to optimize the movement performance of the buoy 50 on the water surface and improve the overall operating efficiency of the fishing system.

[0240] The water distributor 80 features a streamlined design and is primarily constructed from lightweight, high-strength composite materials, such as carbon fiber reinforced plastic. This design ensures good strength while reducing its own weight, thus minimizing its impact on the buoyancy of the float 50. The water distributor 80 is wedge-shaped, with a sharp front end and a gradually widening rear end. Its length is determined by the dimensions of the float 50, for example, 50-80 cm. Its smooth surface further reduces water flow resistance.

[0241] The water distributor 80 is installed at the front end of the float box 50 and is securely fixed with bolts or special clamps to ensure that it will not loosen during the movement of the float box 50. During installation, the central axis of the water distributor 80 is aligned with the forward direction of the float box 50 to effectively separate the water flow.

[0242] When the drive mechanism 60 moves the float 50 on the water surface, the water divider 80, located at the front end of the float 50, is the first to contact the water flow. The wedge-shaped structure of the water divider 80 guides the oncoming water flow to both sides, allowing the water to flow more smoothly over both sides of the float 50 and avoiding significant resistance at the front end. This reduces the water resistance experienced by the float 50 during its forward movement, enabling the drive mechanism 60 to propel the float 50 more efficiently, reducing energy consumption, and improving the float 50's speed and maneuverability. After the float 50 reaches the appropriate position, the position and angle of the fishing device are adjusted via the first support frame 70, and then the fishing device is activated to cast the net.

[0243] Optionally, a special coating, such as a nano-coating with drag-reducing function, can be added to the surface of the distributor 80 to further reduce the friction between the water flow and the surface of the distributor 80, thereby improving the drag-reduction effect. An adjustable-angle distributor 80 can be designed, and the angle between the distributor 80 and the water surface can be adjusted according to different water flow speeds and directions via an adjustment mechanism installed inside the float box 50 to achieve the best water distribution and drag reduction effect.

[0244] In rivers with fast-flowing water, the aforementioned technical solution effectively reduces the impact and resistance of the water flow on the pontoon 50, allowing the fishing system to move more stably to the designated fishing area and improving the safety and efficiency of fishing operations. In large open waters such as lakes or oceans, when the fishing system needs to move long distances, the water divider 80's resistance-reducing effect lowers the energy consumption of the drive mechanism 60, extending the fishing system's operating time and range.

[0245] The aforementioned technical solution significantly reduces the resistance of the float 50 during movement by installing the water divider 80, improves the energy efficiency of the fishing system, reduces the energy consumption and wear of the drive mechanism 60, and extends its service life. Simultaneously, the reduced resistance makes the float 50 move more smoothly and enhances its maneuverability, helping it to reach the target fishing area more accurately. This improves the overall operational efficiency and practicality of the fishing system, enabling it to function better in waters with varying flow conditions.

[0246] In some embodiments, the fishing system further includes a feeding device 90, which is mounted on the buoy 50 to feed the water.

[0247] The fishing system provided by the above technical solution includes a newly added feeding device 90. The feeding device 90 is installed on the float 50 and works in conjunction with other components to improve the fishing process.

[0248] The feeding device 90 can be implemented in several ways. One implementation includes a feeding bin, a dispensing control mechanism, and a feeding port. The feeding bin is typically made of plastic and has a certain capacity, for example, holding 1-10 kg of bait. The bin body 221b has a viewing window for easy observation of the remaining bait by the operator. The dispensing control mechanism can be an electric rotary valve or a screw-driven device. If an electric rotary valve is used, the opening and closing angle of the valve is controlled by a motor 11 to control the amount of bait dispensed; if a screw-driven device is used, the rotation of the screw pushes the bait out of the feeding bin. The feeding port is located at the bottom of the feeding bin and is connected to the dispensing control mechanism. Its shape can be round or square, and its size is designed according to the bait particle size and dispensing speed requirements to ensure that the bait can be dispensed smoothly.

[0249] The feeding device 90 is installed in a suitable position on the buoy 50, such as the top side of the buoy 50, and is fixed by bolts or welding to ensure stability and reliability during the movement of the buoy 50. The feeding port faces the water surface to accurately deliver the bait into the water.

[0250] Before fishing, bait is placed in the bait storage bin of the feeding device 90. After the drive mechanism 60 moves the float 50 to the target area, the feeding control mechanism is operated as needed. If an electric rotary valve is used, the valve opening is adjusted by controlling the rotation of the motor 11, allowing an appropriate amount of bait to fall into the water from the feeding port; if a screw pusher is used, the screw rotation speed is controlled to adjust the amount of bait released. After the bait enters the water, it attracts fish to gather. At this time, the position and angle of the fishing device are adjusted by the first support frame 70, and the fishing device is started to cast nets, taking advantage of the fish gathering to improve the fishing success rate.

[0251] Optionally, the feeding device 90 can be equipped with a timed and quantitative feeding system. By setting a timer and an electronic weighing sensor, automatic feeding can be achieved according to preset time intervals and feeding amounts, reducing manual operation. A remote control module can be installed on the feeding device 90, combined with a GPS positioning system, to remotely control the feeding amount and feeding position of the feeding device 90 from a location away from the float 50, based on the distribution and movement of the fish.

[0252] The above-mentioned technical solution, in large-scale fish farming ponds, utilizes the feeding device 90 to provide timed and quantitative feeding, which not only improves aquaculture efficiency but also, in conjunction with fishing devices, allows for the concentration of fish in specific areas before harvesting, reducing stress on the fish. In natural waters, such as lakes and reservoirs, the feeding device 90, through remote control, can precisely attract fish based on the location of fish detected by sonar, and then net fishing can be carried out at the appropriate time, improving the targeting and efficiency of fishing.

[0253] The addition of the feeding device 90 to the above technical solution enhances the functionality of the fishing system. By attracting fish with bait, it increases the fish density in the target area, significantly improving the catch success rate. Extended functions such as the timed and quantitative feeding system and the remote control module further enhance the intelligence and precision of the fishing system, reduce manual labor intensity, and improve operational efficiency, enabling the fishing system to better meet practical needs in different aquatic environments and fishing scenarios.

[0254] In some embodiments, the fishing system further includes a second support frame 100, which is variably mounted on the buoy 50, and the feeding device 90 is mounted on the buoy 50 via the second support frame 100.

[0255] The fishing system provided by the above technical solution adds a second support frame 100. The second support frame 100 is variably mounted on the buoy 50, and the feeding device 90 is connected to the buoy 50 via the second support frame 100. The various parts work together to improve the adaptability and functionality of the fishing system.

[0256] The second support frame 100 can be made of a robust and durable metal material, such as stainless steel, to ensure sufficient strength to support the feeding device 90. Its structure is similar to the first support frame 70, consisting of a telescopic strut and various joints. The strut is also designed as a multi-section nested structure, with a built-in locking device for length adjustment, changing the height of the support frame; for example, the total telescopic length ranges from 0.5 to 1.5 meters. The joints include rotary joints and hinged joints. The rotary joints allow the support frame to rotate 360° horizontally, while the hinged joints allow the support frame to swing at an angle of -45° to +45° in the vertical plane, achieving flexible amplitude adjustment.

[0257] The second support frame 100 is firmly fixed to the middle area of ​​the buoy 50 at its bottom. The installation position is determined according to the overall layout and ease of operation, such as to one side or the front of the buoy 50. Stability is ensured by bolt connection or welding. By rotating the second support frame 100 relative to the buoy 50, the position and height of the feeding device 90 relative to the buoy 50 can be adjusted to meet the feeding needs of different areas.

[0258] In the aforementioned technical solution, the drive mechanism 60 propels the float 50 to the target water area. During this process, the second support frame 100 can be adjusted in advance according to actual conditions, such as wind direction, water flow, and fish distribution. The height is changed by adjusting the extension and retraction of the support rod, and the angle is adjusted using rotary joints and hinge joints to place the feeding device 90 in the optimal feeding position. After reaching the target area, the feeding device 90 is activated, and the feed control mechanism feeds the bait according to the set parameters. For example, the electromagnetic vibrating plate vibrates at a specific frequency, evenly discharging the bait from the bait storage bin through the feeding port. The bait attracts fish to gather in the water. Subsequently, the position and angle of the fishing device are adjusted by the first support frame 70, and the fishing device is activated to cast nets for fishing.

[0259] Optionally, the second support frame 100 can be equipped with an automatic adjustment system. This system, combined with environmental data collected by sensors such as wind speed and water flow velocity sensors, automatically adjusts the height and angle of the support frame to ensure that the feeding device 90 is always in the optimal feeding position. A shock-absorbing device is installed at the connection between the feeding device 90 and the second support frame 100 to reduce the vibration impact on the feeding device 90 when the float 50 moves, ensuring the stability and accuracy of the feed output.

[0260] In rivers with complex water flow environments, the aforementioned technical solution allows the automatically adjustable second support frame 100 to adapt to changes in water flow and deliver bait accurately. In areas with whirlpools or undercurrents, adjusting the baiting position enhances its effectiveness in attracting fish, thereby increasing the success rate of fishing. When conducting large-scale fishing in large reservoirs or lakes, the baiting device 90, with the aid of the second support frame 100, can flexibly adjust its position to achieve precise baiting over large areas and in multiple zones, improving overall fishing efficiency in conjunction with the fishing equipment.

[0261] The aforementioned technical solution, with the second support frame 100 capable of mounting the feeding device 90 in variable amplitude, greatly enhances the flexibility and accuracy of feeding. It can precisely adjust the feeding position and angle according to different environmental factors and fish distribution, increasing bait attractiveness, effectively attracting fish, and thus improving the success rate of the fishing device. Extended functions such as the automatic adjustment system and shock absorption device further optimize system performance, reduce manual intervention, and minimize the impact of vibration on feeding accuracy, enabling the fishing system to operate efficiently and stably in various complex aquatic environments.

[0262] In some embodiments, there is one feeding device 90 and one second support frame 100, which is located in the middle area of ​​the buoy 50.

[0263] The above technical solution requires only one feeding device 90 for use with multiple fishing devices, significantly reducing hardware procurement costs. It eliminates the need to equip each fishing device with a separate feeding device, lowering equipment purchase and subsequent maintenance costs. For example, a single feeding device 90 costs 2000 yuan, while equipping four fishing devices with one would cost 8000 yuan, a significant cost difference. This effectively controls costs and improves economic efficiency for large-scale fishing operations or fishermen with limited budgets.

[0264] Furthermore, the spatial layout can be optimized. Given the limited space in the buoy 50, a single feeding device 90 can save a significant amount of space. If each fishing device were equipped with a feeding device, the buoy 50 would become crowded, affecting operational convenience and system stability. A feeding device 90 can be installed in the center or a suitable location within the buoy 50, allowing for a more rational arrangement of multiple fishing devices around it, resulting in a compact and orderly overall layout and improving the space utilization rate of the buoy 50.

[0265] Furthermore, it allows for centralized bait management, facilitating unified control over bait distribution. Operators can precisely control the amount, frequency, and location of bait distribution based on the overall distribution and habits of the fish population, avoiding bait waste. For example, after identifying the concentrated areas of the fish population through monitoring equipment, a single feeding device can be used to concentrate the feeding, improving bait attractiveness and utilization, and reducing operating costs.

[0266] Furthermore, it enhances system coordination, with multiple fishing devices operating around a single feeding device, facilitating overall system coordination. The casting areas and timing of multiple fishing devices can be adjusted based on the feeding location and range, improving fishing efficiency. For example, after feeding, fishing devices in different locations can be controlled to cast their nets sequentially or simultaneously, covering the fish attracted by the bait, achieving coordinated operation and increasing the catch.

[0267] In some embodiments, there are multiple fishing devices, each of which is distributed and installed in the buoy 50.

[0268] Multiple fishing devices are used, each powered by either compressed air source 12 or motor 11 as described above. They are distributed across the float 50, for example, regularly arranged along its edges, corners, or specific areas. Multiple fishing devices allow for multi-directional fishing without requiring the float 50 to be rotated back and forth. Each fishing device operates independently and includes a fishing net 30, a catapult component 20, and a catapult device 10 containing a power unit 1 and a transmission component 2. The fishing net 30 has an appropriate mesh size selected based on the target fish species; for example, a mesh size of 2-3 cm is used for small fish. The catapult component 20 is securely connected to the fishing net 30 and is responsible for deploying the net. The power unit 1 and transmission component 2 of the catapult device 10 work together to achieve the catapult function.

[0269] Employing multiple fishing devices can bring significant advantages to fishing operations in terms of improving fishing efficiency, expanding coverage, enhancing environmental adaptability, and reducing risks.

[0270] Improving fishing efficiency: Multiple fishing devices can operate simultaneously, significantly reducing fishing time. For example, in large bodies of water, a single device takes 20 minutes to complete one catch. With four devices working simultaneously, the overall fishing time can theoretically be reduced to about 5 minutes, multiplying the fishing efficiency per unit time. This allows fishermen to complete their fishing tasks in a shorter time and increase their daily catch.

[0271] Expanded coverage: Multiple devices are distributed and installed on the buoy 50, allowing nets to be cast from different directions, covering a larger water area. In open lakes or ocean areas, the coverage of a single device is limited; multiple devices can create a larger fishing area, increasing the chances of catching fish in different locations, reducing the probability of fish escaping, and improving the overall fishing effect.

[0272] Enhanced environmental adaptability: Fishing devices in different locations can independently adjust parameters based on environmental factors such as water flow, water depth, and fish distribution in their respective areas. In rivers with complex currents, some devices can adjust the net casting angle for areas with fast currents, while others are adapted to areas with slow currents. This allows the fishing system to better adapt to complex and changing aquatic environments and maintain high fishing efficiency under various conditions.

[0273] Risk reduction: If some devices malfunction, others can continue operating, ensuring the smooth progress of the fishing operation. For example, if the ejection component of one device is damaged during fishing, the remaining devices are unaffected, maintaining a certain level of fishing capacity and reducing the risk of fishing operations being interrupted due to equipment failure, thus minimizing economic losses.

[0274] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0275] In the description of this invention, each technical feature may be combined with other technical features where feasible.

[0276] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fishing device, characterized in that, include: The system includes a catapult (10), a catapult component (20), and a fishing net (30); the catapult component (20) is connected to the open end of the fishing net (30); The ejection device (10) includes: The power unit (1) is configured to provide power; and The transmission component (2) is connected to the power unit (1) to transmit power to the ejection component (20) under the drive of the power unit (1). The ejection component (20) is configured to be launched via the transmission component (2) under the action of the power unit (1) to open the fishing net (30).

2. The fishing device according to claim 1, characterized in that, The power unit (1) includes a motor (11), and the transmission component (2) includes: The cylinder (211) has a motor (11) installed at one end of the cylinder (211), and the output shaft of the motor (11) is located inside the cylinder (211). The lead screw (212) is located inside the cylinder (211) and is driven by the output shaft of the motor (11); Nut (213), located inside the cylinder (211) and mounted on the lead screw (212), moves linearly along its own axis under the rotation of the lead screw (212); The first elastic element (214) is located inside the cylinder (211) and sleeved on the outside of the lead screw (212); one end of the first elastic element (214) abuts against the nut (213); and The magnetic component (215) includes a through hole (215a) that communicates with the interior of the cylindrical body (211); the magnetic component (215) is installed at the end of the cylindrical body (211) away from the motor (11); When the magnetic element (215) is in a state of maintaining magnetic force, the ejector component (20) is attracted by the magnetic element (215), and the other end of the first elastic element (214) abuts against the ejector component (20).

3. The fishing device according to claim 2, characterized in that, in, When the ejection device (10) is in its initial state, the nut (213) is located at one end of the cylinder (211), the magnetic element (215) is in a state of maintaining magnetic force, and the first elastic element (214) is not compressed; When the ejection device (10) is in the launching state, the nut (213) is located at the other end of the cylinder (211), the first elastic element (214) is compressed, and then the magnetic element (215) is de-energized and loses its magnetic force so that it no longer attracts the ejection component (20). The ejection component (20) is ejected under the elastic force of the first elastic element (214).

4. The fishing device according to claim 1, characterized in that, The power unit (1) includes a compressed air source (12) configured to provide compressed gas; the transmission component (2) includes: The gas chamber (221) includes an air inlet (221a), a chamber body (221b), and an air outlet (221c) that are connected to each other; the compressed air source (12) is connected to the air inlet (221a); The sealing element (220) is located inside the chamber (221b) and at the air outlet (221c); The second elastic element (222) is located inside the chamber (221b) and abuts against or is fixedly connected to the sealing element (220); An air cylinder (223), located outside the gas chamber (221) and communicating with the air outlet (221c) of the gas chamber (221), is configured to mount the ejection component (20); and An impact component (224) is installed in the gas chamber (221) or the gas cylinder (223); wherein the impact component (224) is located outside the gas chamber (221) and the gas cylinder (223); the impact component (224) is configured in the firing state to push open the sealing member (220) to open the gas outlet (221c) so that the compressed gas in the gas chamber (221) enters the gas cylinder (223).

5. The fishing device according to claim 4, characterized in that, The outer wall of the ejection component (20) is fitted with a sealing ring (3), which is press-fitted with the inner wall of the air cylinder (223).

6. The fishing device according to claim 4, characterized in that, There are multiple air cylinders (223), which are fixedly connected, and each air cylinder (223) is connected to the air outlet (221c) through its own separate pipe (225).

7. The fishing device according to claim 6, characterized in that, Each of the gas cylinders (223) is arranged in a circle, and the central axis of each gas cylinder (223) is oriented away from the central axis of the gas chamber (221); each gas cylinder (223) is equipped with a corresponding ejection component (20).

8. The fishing device according to claim 4, characterized in that, in, When the ejection device (10) is in its initial state, the second elastic member (222) is compressed, and the sealing member (220) is pressed against the air outlet (221c) by the second elastic member (222) to block the air outlet (221c); the impact member (224) moves away from the sealing member (220). When the ejection device (10) is in the launching state, the impact component (224) applies a force to the sealing component (220) in the opposite direction to the elastic force of the second elastic component (222) to overcome the elastic force of the second elastic component (222) and push open the sealing component (220), so that the compressed gas in the gas chamber (221) enters the gas cylinder (223) to eject the ejection component (20) installed in the gas cylinder (223).

9. The fishing device according to claim 4, characterized in that, The impact component (224) is one of the following: a push-pull solenoid valve (224a) or a compression spring (224b).

10. The fishing device according to claim 1, characterized in that, The power unit (1) includes a motor; the transmission component (2) includes: The receiving cylinder (231) is equipped with a power unit (1) installed on the outside of the receiving cylinder (231) and fixedly connected to the receiving cylinder (231); A storage spring (232) is installed inside the receiving cylinder (231); The threaded rod (233) is driven to the power unit (1) to rotate under the drive of the power unit (1); Push block (234) is threadedly connected to the threaded rod (233) so as to move linearly along the axial direction of the threaded rod (233) as the threaded rod (233) rotates; The fishing net storage tube (235) includes a first cavity (2351) and a plurality of second cavities (2352), each of the second cavities (2352) being connected to the first cavity (2351), and each of the second cavities (2352) being spaced apart on the outer periphery of the first cavity (2351); both ends of the first cavity (2351) are open; and each of the second cavities (2352) is equipped with a catapult component (20). A magnetic component (236) is fixedly installed inside the first cavity (2351); The force-applying component (237) is movably installed inside the fishing net storage tube (235) along the axial direction of the fishing net storage tube (235); the force-applying component (237) is configured to apply a launching force to the ejection component (20); The energy storage spring (232) is located between the push block (234) and the force-applying component (237). When the magnetic component (236) is in a state of maintaining magnetic force, the magnetic component (236) and the force-applying component (237) are attracted together.

11. The fishing device according to claim 10, characterized in that, The force-applying component (237) includes a fixedly connected load-bearing part (2371) and a force-applying part (2372). There are multiple force-applying parts (2372), and each force-applying part (2372) is installed on the circumferential edge of the load-bearing part (2371). The load-bearing part (2371) is located inside the first cavity (2351), and each force-applying part (2372) corresponds to a second cavity (2352).

12. The fishing device according to claim 11, characterized in that, The load-bearing part (2371) has a groove (2371a) on the side facing the energy storage spring (232) to accommodate the end of the energy storage spring (232).

13. The fishing apparatus according to any one of claims 1-12, characterized in that, The ejection component (20) is configured to be asymmetrical along its own axis to move outward after being ejected to form a net-catching space; or, the ejection component (20) includes an offset tail fin to move outward after being ejected to form a net-catching space; or, the ejection component (20) includes two or more materials of different weights to move outward after being ejected to form a net-catching space.

14. The fishing apparatus according to any one of claims 1-3, characterized in that, Also includes: The fishing net mounting body (40) is equipped with the top of the fishing net (30) and the ejection device (10). The power unit (1) of the ejection device (10) includes a motor (11). There are multiple ejection devices (10), and the multiple ejection devices (10) are arranged at intervals along the circumference of the fishing net mounting body (40).

15. The fishing apparatus according to any one of claims 4-9, characterized in that, The power unit (1) of the ejection device (10) includes a compressed air source (12), and each fishing net (30) is installed in one ejection device (10).

16. A fishing system, characterized in that, Includes the fishing device described in any one of claims 1-15.

17. The fishing system according to claim 16, characterized in that, Also includes: Float (50), the fishing device is installed in the float (50); as well as A drive mechanism (60) is installed on the pontoon (50) to drive the pontoon (50) to move on the water surface.

18. The fishing system according to claim 17, characterized in that, Also includes: The first support frame (70) is variably mounted on the buoy (50); the fishing device is mounted on the buoy (50) via the first support frame (70).

19. The fishing system according to claim 17, characterized in that, Also includes: A water distributor (80) is installed on the float (50) to reduce the resistance during the movement of the float (50).

20. The fishing system according to claim 17, characterized in that, Also includes: A feeding device (90) is installed on the buoy (50) to feed the water.

21. The fishing system according to claim 20, characterized in that, Also includes: The second support frame (100) is variably mounted on the pontoon (50), and the feeding device (90) is mounted on the pontoon (50) via the second support frame (100).

22. The fishing system according to claim 20, characterized in that, The number of the feeding device (90) is one, and the number of the second support frame (100) is also one, with the second support frame (100) located in the middle area of ​​the pontoon (50).

23. The fishing system according to any one of claims 17-22, characterized in that, The number of fishing devices is multiple, and each fishing device is installed separately in the buoy (50).

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