Fishing device and double-body type unmanned fishing vessel

By designing a fishing device that blocks the channel on the unmanned fishing boat, the problem of fish being difficult to unhook quickly has been solved, achieving efficient fishing and stable catch of fish schools, thus improving fishing efficiency and fish survival rate.

CN224022686UActive Publication Date: 2026-03-24NINGBO UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing unmanned fishing vessels struggle to quickly and completely unhook fish from the fishing line, resulting in low fishing efficiency. Furthermore, the frequent vertical movement operations may scare away schools of fish.

Method used

A fishing device has been designed, including a rotating roller connected to the stern of a boat and a fishing line wound on it. A hook is connected to the fishing line, and a hook release assembly is connected to one side of the boat. The hook release assembly consists of a plate and a blocking channel. The opening size of the blocking channel gradually decreases, which can effectively block fish of different sizes, causing them to get off the hook and fall into the net.

Benefits of technology

This method enables fish to be unhooked efficiently, avoiding multiple manual operations and longitudinal displacement, thus improving fishing efficiency, reducing the disturbance to fish schools, and increasing fish survival rate and catch volume.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224022686U_ABST
    Figure CN224022686U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of fishing facilities, and discloses a fishing device and a double-body type unmanned fishing boat, the fishing device comprises a winding roller rotatably connected to the tail part of a boat body and a plurality of fishing lines wound on the winding roller, the fishing lines are connected with hooks, and one side of the boat body located on the winding roller is connected with an unhooking assembly. A net bag is connected to the portion, below the unhooking assembly, of the hull, the unhooking assembly comprises a plate body, the plate body is fixedly connected to the hull in the vertical direction, a blocking channel used for blocking fishes is formed in the plate body in the thickness direction in a penetrating mode, the fishing line penetrates through the blocking channel, and the size of an opening, close to the bow, of the blocking channel is larger than that of an opening, close to the stern, of the blocking channel. Fish hung on the hook can abut against the inner wall of the gradually-narrowed blocking channel, and the hook can penetrate through the small opening of the blocking channel. According to the utility model, fish on the hook can be quickly unhooked, so that more efficient fishing is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to fishing facility technical field, especially in a kind of fishing device and double body unmanned fishing boat. BACKGROUND

[0002] Traditional fishery resources fishing is mainly crew on board fishing, that is, fishery resources are fished by training crew with corresponding fishing skills, but this fishing method by manned fishing boat has certain defects, for example, operation error of crew during fishing operation can cause certain economic loss and endanger life safety of crew or others, and manual fishing also has problems such as low efficiency and unstable fishing amount, and various uncontrollable factors increase the difficulty and risk of fishing operation, so current unmanned fishing boat gradually replaces offshore manual fishing.

[0003] Current existing unmanned fishing boat includes hull, sonar module installed to hull for detecting fish school, propeller power module connected to tail of hull for driving hull to travel and fishing device for fishing, fishing device includes fishing line with many hooks and take-up and pay-off equipment for taking up and paying off fishing line, and the end of fishing line is connected with counterweight, when hull passes through fish school, many fish will be hooked on hook under the action of lure on hook, at this time, pulling equipment pulls fishing line upward at high speed to make fish enter into hull, and fish is unhooked into hull by inertia.

[0004] However, existing fishing device is difficult to quickly and completely unhook fish on fishing line, so that part of fish is still hung on hook of fishing line, at this time, fish on hook is unhooked by inertia and vibration of fishing line through manual remote control of pulling equipment for multiple times of paying off and pulling in fishing line, which is not only very troublesome and time-consuming, but also counterweight frequently displaced longitudinally when paying off and pulling in fishing line for multiple times, which scares away fish school, thereby affecting fishing efficiency as a whole. SUMMARY

[0005] The utility model provides a kind of fishing device, can realize quick unhooking of fish on hook.

[0006] The utility model provides a kind of fishing device, including rotationally connected in the tail of hull roll and the multiple fishing lines around on roll, and the hook is connected on fishing line, and the unhooking assembly is connected in the side of roll of hull, and the net bag is connected below the unhooking assembly of hull, and the unhooking assembly includes: plate body, plate body is fixedly connected on hull along vertical direction, and the blocking passage for blocking fish is opened in the thickness direction of plate body, and fishing line passes through blocking passage, and the opening size of blocking passage near bow side is greater than the opening size of blocking passage near stern side, and fish hung on hook can be abutted to gradually narrowing inner wall of blocking passage, and hook can pass through the smaller opening of blocking passage.

[0007] Preferably, the two openings of the barrier channel are both in the shape of a longitudinally extending slit.

[0008] Preferably, the larger opening of the barrier channel is gradually reduced in size towards the smaller opening.

[0009] Preferably, the acute angle between the inclined surface of the bottom of the barrier channel and the horizontal plane is 30° to 45°.

[0010] Preferably, the number of barrier channels and fishing lines are both plural, and each fishing line corresponds to one barrier channel.

[0011] Preferably, the auxiliary wheel is rotationally connected to the side of the hull near the bow, the center line of the auxiliary wheel is parallel to the center line of the winding roller, the auxiliary wheel is fixedly connected with a plurality of support plates for supporting the fishing lines along the axial direction of the auxiliary wheel, and the wheel shaft of the auxiliary wheel is driven by the driving motor.

[0012] Preferably, the middle part of the net bag is concave downward, and the net bottom is placed below the hull.

[0013] The utility model also provides a double -hull unmanned fishing boat, including ship body, still include fishing device, ship body includes two main parts and be used for connecting two main parts's connecting frame, be provided with the placing plate on the connecting frame, fishing device is connected on the placing plate, the placing plate is located net bag top and is equipped with the through -going hole of making fish fall down, double -hull unmanned fishing boat still include: echo sounder module, two groups of propeller power module, control module, echo sounder module is connected on the main part, two groups of propeller power module are connected respectively in the tail of two main parts, be used for providing the power of advancing for ship body, control module is connected on the main part, control module is used for controlling propeller power module to drive the displacement of ship body, control echo sounder module's switch and control winding roller and the driving motor of auxiliary wheel, the connecting frame of unmanned fishing boat is connected with the monitoring camera main part for monitoring water and water surface obstacle, and the GPS positioning module for positioning and wireless communication module for remote control control module are connected on the main part.

[0014] Compared with the prior art, the beneficial effects of the device are that the unhooking assembly can efficiently unhook the fish, the plate body and the barrier channel can realize the passing of the fishing line and the fishhook, the fish of different sizes can be blocked and unhooked, when the ship body passes through the fish group, the fishing line is pulled upward at high speed to make the fish enter the ship body and approach the barrier channel of the plate body, part of the fish with large size is directly blocked to one side of the large opening of the plate body and falls into the net bag, the small fish enter the plate body and are blocked and unhooked into the net bag through the gradually reduced barrier channel, thereby realizing efficient unhooking, the operation of the traditional manual remote control pulling device is avoided, the fish on the hook is unhooked by inertia and vibration of the fishing line, and the heavy weight is also avoided from scaring away the fish group. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure schematic view of a fishing device and a double-body type unmanned fishing boat is provided for the embodiment of the utility model;

[0016] Figure 2 A right side view partial section structure schematic view of a fishing device and a double-body type unmanned fishing boat is provided for the embodiment of the utility model;

[0017] Figure 3 A front view structure schematic view of a fishing device and a double-body type unmanned fishing boat is provided for the embodiment of the utility model;

[0018] Figure 4 A top view structure schematic view of a fishing device and a double-body type unmanned fishing boat is provided for the embodiment of the utility model;

[0019] Figure 5 A partial structure schematic view of a fishing device and a double-body type unmanned fishing boat is provided for the embodiment of the utility model;

[0020] Figure 6 A Figure 2 A local enlarged view of part A.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, ship body; 11, main body; 2, winding roller; 3, fishing line; 4, hook; 5, heavy weight; 6, net bag; 7, plate body; 71, barrier channel; 8, auxiliary wheel; 81, support plate; 9, connecting frame; 10, placing plate; 101, through hole; 12, propeller power module; 13, monitoring camera; 14, guide plate. DETAILED DESCRIPTION

[0023] One specific embodiment of the present application will be described in detail below with reference to the drawings, but it should be understood that the scope of protection of the present application is not limited by the specific embodiment.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical scheme of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0025] Reference Figure 1 , Figure 2 and Figure 5 , the utility model provides a fishing device, including the roll 2 of rotation connection in the stern of ship body 1 and the fishing line 3 around setting on the roll 2, counterweight 5 fixedly connected in the lower end of fishing line 3 for counterweight to make fishing line 3 be in the state of being pulled tight, the hook 4 is connected on fishing line 3 near counterweight 5, the one side of roll 2 is connected with the unhooking assembly of ship body 1, the net bag 6 is connected below the unhooking assembly of ship body 1, the unhooking assembly includes: plate body 7, plate body 7 is fixedly connected on ship body 1 along vertical direction, the blocking passage 71 for blocking fish is opened along the thickness direction of plate body 7, fishing line 3 passes through blocking passage 71, the opening size of blocking passage 71 near the bow side is greater than the opening size of blocking passage 71 near the stern side, the fish suspended on the hook 4 can be abutted to the inner wall of gradually narrowing blocking passage 71, the hook 4 can pass through the smaller opening of blocking passage 71, along with the rotation of roll 2 under the action of external force, after the upward displacement of counterweight 5, the hook 4 on fishing line 3 will gradually pass through blocking passage 71 along with fishing line 3 and make fish extrude and fall off.

[0026] In the above embodiment, the device can efficiently unhook the fish through the unhooking assembly. Specifically, the plate body 7 and the barrier passage 71 formed in the plate body 7 can realize the passing of the fishing line 3 and the fishhook. Since the plate body 7 has a certain thickness and the two openings of the barrier passage 71 are different in size, fish of different sizes can be blocked and unhooked. After the ship body 1 passes through the fish group, the fish on the fishing line 3 are hooked on the fishhook. At this time, the pulling device pulls the fishing line 3 upward at a high speed so that the fish enter the ship body 1 and approach the barrier passage 71 of the plate body 7. Part of the fish with large body size is directly blocked to one side of the large opening of the plate body 7 and falls into the net 6 at the bottom. The smaller fish enter the plate body 7 and are also blocked and unhooked into the net 6 through the gradually reduced barrier passage 71, thereby realizing efficient unhooking. Therefore, the traditional manual remote control of the pulling device is avoided, and the fish on the hook 4 is unhooked by using the inertia and the vibration of the fishing line 3. In addition, the frequent longitudinal displacement of the counterweight 5 does not scare away the fish group.

[0027] Specifically, the current winding and unwinding device for winding and unwinding the fishing line 3 commonly includes a winding roller 2 and a driving rotation motor for driving the rotation of the winding roller 2. When the winding roller 2 rotates, the fishing line 3 realizes the winding and unwinding effect. When the fishing line 3 rotates toward the ship tail side, the fish on the hook 4 can be brought onto the ship body 1, and the process of winding the line directly blocks the fish by the plate body 7 and the barrier passage 71 provided in the plate body 7 to efficiently unhook the fish.

[0028] Further, referring to Figure 1 and Figure 5 , the two openings of the barrier passage 71 are longitudinally extended and flat.

[0029] In the above embodiment, by limiting the two openings of the barrier passage 71 to be drum-shaped, the shape of the fish on the hook 4 can be adapted. When the fish enters the barrier passage 71, the two sides of the body of the fish are in contact with the inner wall of the plate body 7, not directly pressed by the head, which as much as possible improves the survival rate of the fish and makes the fish more uniform in unhooking stress, thereby facilitating unhooking.

[0030] Further, referring to Figure 2 and Figure 5 , the inner wall of the larger opening of the barrier passage 71 extending toward the side of the smaller opening is inclined.

[0031] In the above embodiment, by limiting the inner wall of the larger opening of the barrier passage 71 extending toward the side of the smaller opening to be inclined, compared with the stepped reduction, the outer surface of the fish can be prevented from being cornered, thereby as much as possible improving the integrity of the fish.

[0032] Further, referring to Figure 2The acute angle between the inclined surface at the bottom of the blocking channel 71 and the horizontal surface is 30° to 45°.

[0033] In the above embodiment, the angle between the inclined surface and the horizontal surface is preferably 45°, which can more effectively guide the fish that has been unhooked, and the fish can slide faster into the mesh bag 6.

[0034] Further, referring to Figure 5 The number of blocking channels 71 and fishing lines 3 is multiple, and each fishing line 3 corresponds to each blocking channel 71.

[0035] In the above embodiment, the number of blocking channels 71 and fishing lines 3 provided in the embodiment is two, and specifically, the take-up device for taking up and releasing the fishing line 3 can be one or multiple.

[0036] Further, referring to Figure 2 , Figure 3 and Figure 6 The auxiliary wheel 8 is rotationally connected to the side of the hull 1 close to the bow, the center line of the auxiliary wheel 8 is parallel to the center line of the winding roller 2, a plurality of support plates 81 for supporting the fishing line 3 are fixedly connected to the auxiliary wheel 8 along the axial direction, and the wheel shaft of the auxiliary wheel 8 is driven by the driving motor.

[0037] In the above embodiment, the auxiliary wheel 8 and the support plate 81 are provided to guide the fishing line 3, so that the part of the fishing line 3 close to the bow is in a drooping state, and the fishing line 3 is kept as horizontal as possible between the auxiliary wheel 8 and the take-up device for taking up and releasing the fishing line 3, which can ensure that the fishing line 3 penetrates to the middle part of the blocking channel 71. The number of support plates 81 is multiple, and the space between two adjacent support plates 81 can accommodate a plurality of larger fish, which can guide the fishing line 3 during the rotation of the auxiliary wheel 8, and will not squeeze and damage the fish on the hook.

[0038] Further, referring to Figure 2 and Figure 3 Considering that the mesh bag 6 is exposed to sunlight, the survival rate of the fish is low and the fish is prone to rot, the middle part of the mesh bag 6 is recessed, and the mesh bottom is placed below the hull 1.

[0039] In the above embodiment, the middle part of the mesh bag 6 is recessed, which can accommodate more fish, and the fish is not easy to jump out. By limiting the mesh bottom to be placed below the hull 1, the middle part of the mesh bottom will be placed below the liquid surface during actual use, thereby ensuring the survival rate of the fish.

[0040] Referring to Figure 1 and Figure 2The utility model also provides a kind of double-body unmanned fishing boat, including hull 1, further include fishing device, hull 1 includes two main bodies 11 and the connecting frame 9 for connecting two main bodies 11, two main bodies 11 with self weight reduction, can maximumly promote the amount of fishing, its bottom is flat, placing plate 10 is provided on connecting frame 9, fishing device is connected on placing plate 10, placing plate 10 is located above net bag 6 and is provided with the through hole 101 for fish to fall, double-body unmanned fishing boat further includes: echo sounder module, two groups of propeller power module 12, control module, echo sounder module is connected on main body 11, two groups of propeller power module 12 are connected on the tail of two main bodies 11 respectively, for providing the power of travel for hull 1, control module is connected on main body 11, control module is used to control the displacement of propeller power module 12, control echo sounder module's switch and control the drive motor of auxiliary wheel 8 and reel 2, the monitoring camera 13 for monitoring water and water surface obstacle is connected on the connecting frame 9 of unmanned fishing boat, and GPS positioning module for positioning and wireless communication module for remote control control module are connected on main body 11.

[0041] In the above embodiment, the present double-body unmanned fishing boat is also provided with pixhawk flight control system, pixhawk flight control system is a kind of common control system at present, can combine monitoring camera 13, fish-finding echo sounder combines pixhawk flight control system and carry out automatic fish searching and fishing operation mode, monitoring camera 13 is used to monitor water and water surface obstacle, information is transported to pixhawk flight control system and timely path adjustment is carried out, evades surrounding ships or obstacles, simultaneously, commonly used Missionplanner system is also equipped, the system uses trigonometry to measure the distance between ship and obstacle in real time, when distance reaches set threshold, new path is planned according to obstacle position information using dynamic path planning in Missionplanner system, and main body 11 is controlled to avoid obstacle object using open source flight control system pixhawk according to new path, simultaneously, according to the detection of fish-finding echo sounder to underwater organism, fish school position and other related information are transmitted back in time, are transmitted to open source flight control system pixhawk, so as to control ship to travel to fish rich area and carry out fishing operation, preferably, the model of GPS positioning module is M8N GPS, the power rotary shaft of propeller power module 12 is driven through full-sealed cabin water-tight motor KYI-8T, and the model of echo sounder is TULX wireless echo sounder fish finder.

[0042] The fishing process is as follows: the boat body 1 is first placed in water, the specified water area is autonomously patrolled through the flight control system and the monitoring camera 13, the underwater fishing sonar starts to operate, the fish school direction and position are detected in real time, after the fish school is found, the boat is autonomously driven to the corresponding water area, the relative position between the boat and the fish school is continuously monitored through the sonar, the route is adjusted in time, when the boat body 1 and the fish school position are close, the fishing line 3 passes through the bow auxiliary wheel 8 of the boat body 1, the winding roller 2 is driven to rotate through the motor, then the fishing line 3 with the counterweight 5 is released into water, after a period of time, the winding roller 2 is reversely rotated, the fish is displaced towards the one side of the plate body through the auxiliary wheel and the supporting plate, falls under the extrusion and limiting action of the plate body 7 and the blocking channel 71, slides to the inside of the net bag 6 through the guide plate 14, and the repeated winding and unwinding process is repeated.

[0043] In conclusion, the structure can realize the winding and unwinding effect of the fishing line and make the fish unhooked, the flight control system and the fish detecting sonar are assembled, the fishing operation process can be automatically completed, and the fishing efficiency is improved.

[0044] The above only discloses several specific embodiments of the utility model, but the utility model embodiments are not limited to this, any change that can be thought of by any person skilled in the art should fall into the protection scope of the utility model.

Claims

1. A fishing device comprising a rotatable roller (2) connected to the stern of a hull (1) and a fishing line (3) wound on the roller (2), wherein a hook (4) is attached to the fishing line (3), characterized in that, The hull (1) is connected to a release assembly on one side of the roller (2), and a net (6) is connected to the hull (1) below the release assembly. The release assembly includes: The plate (7) is fixedly connected to the hull (1) in the vertical direction. The plate (7) has a blocking channel (71) for blocking fish through it in the thickness direction. The fishing line (3) passes through the blocking channel (71). The opening size of the blocking channel (71) near the bow is larger than the opening size near the stern. The fish suspended on the hook (4) can be pressed against the gradually narrowing inner wall of the blocking channel (71). The hook (4) can pass through the smaller opening of the blocking channel (71).

2. The fishing device as described in claim 1, characterized in that, Both openings of the blocking channel (71) are longitudinally extending flat openings.

3. A fishing device as described in claim 1, characterized in that, The inner wall of the barrier channel (71) extending from the side with the larger opening toward the smaller opening is sloping.

4. A fishing device as described in claim 3, characterized in that, The acute angle between the inclined surface at the bottom of the blocking channel (71) and the horizontal plane is 30° to 45°.

5. A fishing device as described in claim 1, characterized in that, There are multiple barriers (71) and fishing lines (3), and multiple hooks (4) on the fishing lines (3). Each fishing line (3) passes through each barrier (71) in a corresponding manner.

6. A fishing device as described in claim 1, characterized in that, An auxiliary wheel (8) is rotatably connected to the side of the hull (1) near the bow. The center line of the auxiliary wheel (8) is parallel to the center line of the roller (2). Multiple support plates (81) for supporting the fishing line (3) are fixedly connected to the auxiliary wheel (8) along its axial direction. The axle of the auxiliary wheel (8) is driven by a drive motor.

7. A fishing device as described in claim 1, characterized in that, The net (6) is recessed in the middle and the bottom of the net is placed below the hull (1).

8. A catamaran unmanned fishing vessel, comprising a hull (1), characterized in that, It also includes the fishing device as described in any one of claims 1-7, wherein the hull (1) comprises two main bodies (11) and a connecting frame (9) for connecting the two main bodies (11), a placement plate (10) is provided on the connecting frame (9), the fishing device is connected to the placement plate (10), and the placement plate (10) is provided with a through-hole (101) above the net (6) to allow fish to fall, and the catamaran unmanned fishing boat further includes: A sonar module is connected to the main body (11); Two sets of propeller power modules (12) are respectively connected to the tail of the two main bodies (11) to provide propulsion power for the hull (1); The control module is connected to the main body (11). The control module is used to control the displacement of the hull (1) driven by the propeller power module (12), control the switching of the sonar module, and control the drive motors of the roller (2) and the auxiliary wheel (8).

9. A catamaran unmanned fishing vessel as described in claim 8, characterized in that, The unmanned fishing boat is connected to a monitoring camera (13) for monitoring obstacles on the water and surface. The main body (11) is connected to a GPS positioning module for positioning and a wireless communication module for remote control.

10. A catamaran unmanned fishing vessel as described in claim 8 or 9, characterized in that, The placement plate (10) is connected to a guide plate (14) at the through opening (101) for guiding the fish toward the net (6).