Intelligent fixation gill net placement equipment
The intelligent fixed-position gillnet placement equipment, utilizing underwater observation devices and mechanized deployment and retrieval design, solves the problem of researchers independently placing and storing gillnets, enabling independent operation and efficient surveys. It is suitable for monitoring multiple environmental parameters and using gillnets of different specifications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INST OF AQUATIC LIFE ACAD SINICA
- Filing Date
- 2026-04-01
- Publication Date
- 2026-05-15
AI Technical Summary
Existing tools for placing fixed gillnets rely on fishermen's experience, making it difficult for researchers to place and retrieve them independently. Furthermore, commonly available tools have limited effectiveness and narrow applicability, failing to meet the needs of fisheries production and ecological surveys.
An intelligent fixed-position barbed wire placement device was designed, which includes an underwater observation device and a fixed-position barbed wire storage device. It uses a multi-functional probe and a display screen to provide underwater environmental data, and combined with a mechanized deployment and retrieval design, it can achieve independent operation and precise deployment.
It lowers the operational threshold, enabling researchers to independently complete the deployment and retrieval of gillnets, improving the accuracy of surveys and production efficiency, protecting the nets, and has a wide range of applications, making it labor-saving and efficient to operate.
Smart Images

Figure CN122030348A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of barbed wire placement technology, and in particular to an intelligent fixed-position barbed wire placement device. Background Technology
[0002] In freshwater fisheries production, fixed gillnets are the most commonly used tool in fisheries ecological surveys. However, researchers often lack the ability to correctly place gillnets themselves due to the high learning cost of gillnet placement and unfamiliarity with lake hydrology, fish distribution, and seabed conditions. Therefore, they have long relied on hiring fishermen for this task. However, due to limitations in sampling areas, some remote areas may lack fishermen's assistance. In particular, after the ten-year fishing ban on the Yangtze River, the need for fishermen relocation and resettlement, as well as the confidentiality of survey work, has made hiring fishermen even more difficult.
[0003] Fishermen commonly use sharpened and flattened bamboo or iron skewers to set their gillnets. When setting the net, the fisherman stands at the end of the boat's direction of travel, holding the skewers at an upward angle to prevent the net from slipping. As the boat moves forward, the net slides backward, completing the setup. To retrieve the net, the upper line is threaded onto the skewers. The placement of gillnets relies on the fisherman's experience, and underwater conditions are generally not investigated beforehand. If researchers set the nets themselves, it is difficult to locate fish schools, and gillnet placement is easily affected by tree roots, large pieces of debris, shipwrecks, boulders, etc., on the seabed, leading to damage or difficulty in retrieval.
[0004] After fishing, fishermen typically use fishing line to tie the top line of their nets to prevent them from scattering. Currently, there are fixed gillnet storage devices on the market. The main body of this device consists of two parallel plastic tacks with slots on both sides that interlock to prevent them from falling off. The prepared top line of the net is strung onto one of the plastic tacks, and the tacks are then secured with the two sides. However, this device is currently limited in its application due to its single function.
[0005] In summary, existing fixed gillnet placement methods mainly rely on fishermen's homemade tools, and the placement methods and locations depend entirely on the fishermen's personal experience, resulting in high learning costs for researchers and making it difficult for them to independently complete the placement of the nets. Furthermore, commercially available gillnet storage tools have limited effectiveness and narrow applicability, failing to meet the field survey needs of researchers in fisheries production and fisheries ecology. Therefore, this invention proposes an intelligent fixed gillnet placement device to solve the above problems. Summary of the Invention
[0006] The purpose of this invention is to provide an intelligent fixed gillnet placement device to solve the problems existing in the prior art, enabling researchers to independently conduct river and lake fishery resource surveys and assist in actual freshwater fishery production.
[0007] To achieve the above objectives, the present invention provides the following solution: The present invention provides an intelligent fixed-position barbed wire placement device, comprising: A fixing pipe is installed on the stern railing; An underwater observation device includes an underwater multi-functional probe, a display screen, and a connecting cable. The underwater multi-functional probe and the display screen are electrically connected via the connecting cable. A bracket is installed on a fixed tube, and the display screen is fixedly connected to the bracket. A reel is fixedly connected to the fixed tube, and the connecting cable is wound around the reel. A fixed barbed wire storage device includes a rod body, a support rod and a handle are fixedly connected to the rod body, a movable frame is rotatably connected to the support rod, the movable frame is snapped onto the rod body, and the rod body is movably connected to the fixed tube through an adjustment mechanism.
[0008] Preferably, the adjusting mechanism includes an adjusting gear disk one and an adjusting gear disk two. A sleeve one is fixedly connected to the fixed tube. The adjusting gear disk one is fixedly connected to the sleeve one via a connecting block. A first connecting rod is fixedly connected to the adjusting gear disk one. A stud is fixedly connected to the first connecting rod. A through hole is formed on the adjusting gear disk two. The first connecting rod passes through the through hole. A threaded tube is threadedly connected to the stud. A knob is fixedly connected to the threaded tube. The adjusting gear disk one and the adjusting gear disk two fit together. The rod body is detachably connected to the adjusting gear disk two.
[0009] Preferably, a support plate is fixedly connected to the second adjusting gear plate, a pipe clamp is fixedly connected to the support plate, the rod is snapped into the pipe clamp, a through hole is opened on the pipe clamp, a bolt is inserted into the through hole, and a nut is threadedly connected to the bolt.
[0010] Preferably, a limit ring is fixedly connected inside the threaded tube, a second connecting rod is fixedly connected to the stud, and a baffle is fixedly connected to the second connecting rod.
[0011] Preferably, both the support rod and the rod body are provided with slots, and a protrusion is fixedly connected to the movable frame, the protrusion being adapted to the slot.
[0012] Preferably, the bracket includes a U-shaped plate, the display screen is fixedly connected to the U-shaped plate, and both the U-shaped plate and the fixing tube are provided with through holes. A bolt is inserted into the through hole, and a nut is threaded onto the bolt.
[0013] Preferably, a second sleeve is fixedly connected to the fixed tube, the reel is fixedly connected to the second sleeve, and a thread hole is provided on the fixed tube.
[0014] Preferably, a sunshade is fixedly connected to the display screen, and the fixing tube is fixedly connected to the stern railing by a cross tube buckle.
[0015] The present invention discloses the following technical effects: 1. This invention significantly lowers the operational threshold, enabling independent operation. Through a multi-functional probe and display screen, the underwater environment is visualized. Combined with a fixed gillnet storage device, researchers can independently complete the deployment and retrieval of gillnets without relying on the experience of fishermen, after simple training.
[0016] 2. Enables data-driven precision deployment. The multi-functional probe, which can integrate multiple sensors, provides objective environmental and fish population data as a basis for decision-making regarding the placement, depth, and angle of gillnets, significantly improving the accuracy of fishery resource surveys or the production efficiency of actual fishing.
[0017] 3. Functional integration and multi-purpose: It modularly integrates the three major functions of detection, placement and storage, which can not only meet the needs of scientific research for simultaneous monitoring of multiple environmental parameters and flexible use of different specifications of nets, but also adapt to the requirements of efficient and labor-saving operation in actual production, and has a wide range of applications.
[0018] 4. Effortless and efficient operation, protecting the nets: The mechanized release and retrieval design allows the barbed wire to be released and retrieved in an orderly manner, avoiding the common problem of tangled nets in manual operation. This not only saves manpower and improves efficiency, but also reduces wear and tear on the nets. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the intelligent fixed-position barbed wire placement device of the present invention; Figure 2 This is a side view of the present invention; Figure 3 for Figure 2 Enlarged view of point a in the middle; Figure 4 This is a front view of the movable frame of the present invention; The components include: 1. Fixed pipe; 2. Stern railing; 3. Pole body; 4. Support rod; 5. Movable frame; 6. Underwater multi-functional probe; 7. Display screen; 8. Connecting cable; 9. Bracket; 10. Reel; 11. Adjusting gear plate one; 12. Adjusting gear plate two; 13. Sleeve one; 14. First connecting rod; 15. Stud; 16. Threaded pipe; 17. Knob; 18. Support plate; 19. Pipe clamp; 20. Bolt one; 21. Nut one; 22. Limiting ring; 23. Second connecting rod; 24. Baffle; 25. Protrusion; 26. U-shaped plate; 27. Bolt two; 28. Nut two; 29. Sleeve two; 30. Sunshade; 31. Cross tube buckle; 32. Handle. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0023] Reference Figure 1-4 This invention provides an intelligent fixed-position barbed wire placement device, comprising: Fixed pipe 1 is installed on the stern railing 2. The underwater observation device includes an underwater multi-functional probe 6, a display screen 7, and a connecting cable 8. The underwater multi-functional probe 6 and the display screen 7 are electrically connected through the connecting cable 8. A bracket 9 is installed on the fixed tube 1. The display screen 7 is fixedly connected to the bracket 9. A reel 10 is fixedly connected to the fixed tube 1. The connecting cable 8 is wound on the reel 10. A fixed barbed wire storage device includes a rod body 3, a support rod 4 and a handle 32 fixedly connected to the rod body 3, a movable frame 5 rotatably connected to the support rod 4, the movable frame 5 being snapped onto the rod body 3, and the rod body 3 being movably connected to the fixed tube 1 through an adjustment mechanism.
[0024] In this device, the device is installed on the stern railing 2 via the fixing pipe 1. The underwater multi-functional probe 6 has photography and temperature sensing functions, enabling it to observe underwater conditions and sense water temperature. The display screen 7 has a built-in battery. Before placing the gillnet, the connecting line 8 is released through the reel 10, allowing the underwater multi-functional probe 6 to enter the water. After observing the fish school and confirming there are no obstacles on the bottom, the gillnet can be placed. When placing the gillnet, the angle of the pole 3 is adjusted using the adjustment mechanism. After adjusting the angle, the movable frame 5 is rotated upwards, and the handle 32 is held. As the boat moves, the gillnet slides out automatically. When storing the fixed gillnet, the movable frame 5 is detached from the pole 3, and the movable frame 5 is rotated upwards. Then, the upper line of the fixed gillnet is threaded onto the pole 3. After threading, the movable frame 5 is rotated downwards to lock onto the pole 3, preventing the gillnet from falling off. The reel 10 in this device is from the Haide Precision brand.
[0025] The scheme is further optimized. The adjustment mechanism includes an adjustment gear disk 11 and an adjustment gear disk 2 12. A sleeve 13 is fixedly connected to the fixed tube 1. The adjustment gear disk 11 is fixedly connected to the sleeve 13 via a connecting block. A first connecting rod 14 is fixedly connected to the adjustment gear disk 11. A stud 15 is fixedly connected to the first connecting rod 14. A through hole is opened on the adjustment gear disk 2 12. The first connecting rod 14 passes through the through hole. A threaded tube 16 is threadedly connected to the stud 15. A knob 17 is fixedly connected to the threaded tube 16. The adjustment gear disk 11 and the adjustment gear disk 2 12 fit together. The rod body 3 is detachably connected to the adjustment gear disk 2 12.
[0026] Both the adjusting gear 11 and the adjusting gear 2 12 have toothed surfaces that mesh with each other. The threaded tube 16 can be rotated by the knob 17. The inner edge of the threaded tube 16 has threads. When the threaded tube 16 is rotated, it can tighten or loosen the adjusting gear 2 12. When the adjusting gear 2 12 is tightened on the adjusting gear 11, the adjusting gear 11 and the adjusting gear 2 12 cannot rotate. When it is necessary to adjust the angle of the rod 3, the threaded tube 16 can be loosened.
[0027] The scheme is further optimized. A support plate 18 is fixedly connected to the adjusting gear plate 2 12. A pipe clamp 19 is fixedly connected to the support plate 18. The rod body 3 is snapped into the pipe clamp 19. A through hole is opened on the pipe clamp 19. A bolt 20 passes through the through hole. A nut 21 is threadedly connected to the bolt 20.
[0028] The pipe clamp 19 is used to hold the rod body 3, and the rod body 3 can be clamped by the bolt 20 and the nut 21.
[0029] The scheme is further optimized by fixing a limit ring 22 inside the threaded tube 16, fixing a second connecting rod 23 on the stud 15, and fixing a baffle 24 on the second connecting rod 23.
[0030] When the threaded tube 16 is rotated, the cooperation between the baffle 24 and the limiting ring 22 can prevent the threaded tube 16 from disengaging from the stud 15.
[0031] The design was further optimized by providing slots on both the support rod 4 and the rod body 3, and fixing protrusions 25 to the movable frame 5, with the protrusions 25 matching the slots.
[0032] When the movable frame 5 is rotated, the protrusion 25 engages in the slot, which can fix the movable frame 5 and prevent it from rotating.
[0033] The design is further optimized. The bracket 9 includes a U-shaped plate 26, and the display screen 7 is fixedly connected to the U-shaped plate 26. Both the U-shaped plate 26 and the fixing tube 1 have through holes, and bolts 27 are inserted into the through holes. Nuts 28 are threadedly connected to bolts 27.
[0034] The display screen 7 is connected to the U-shaped plate 26. When it is necessary to adjust the U-shaped plate 26, simply loosen the second nut 28.
[0035] The scheme is further optimized by fixing a sleeve 29 to the fixed tube 1, fixing a wire wheel 10 to the sleeve 29, and providing a wire hole 33 on the fixed tube 1.
[0036] Sleeve 29 is used to install the spool 10, and the thread hole 33 is used to pass the connecting wire 8 through.
[0037] The design has been further optimized. A sunshade 30 is fixedly connected to the display screen 7, and the fixing tube 1 is fixedly connected to the stern railing 2 through the cross tube buckle 31.
[0038] The sunshade 30 facilitates viewing the screen, and the cross tube buckle 31 is used to connect the fixing tube 1 and the stern railing 2.
[0039] The method of using this device is as follows: Before placing the gillnet, release the connecting line 8 through the reel 10 to allow the underwater multi-functional probe 6 to enter the water. After observing the fish school and ensuring there are no obstacles on the bottom, the gillnet can be placed. When placing the gillnet, rotate the threaded tube 16, loosen the adjusting toothed disc 12, rotate the rod 3 and the tube clamp 19 to adjust the angle of the rod 3. After adjustment, tighten the threaded tube 16 again and rotate the movable frame 5 upward. Hold the handle 32, and the gillnet will slide out automatically as the ship moves. When storing the fixed gillnet, remove the movable frame 5 from the rod 3 and rotate the movable frame 5 upward. Then, thread the upper line of the fixed gillnet onto the rod 3. After threading, rotate the movable frame 5 downward to lock it onto the rod 3 to prevent the gillnet from falling off.
[0040] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0041] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims
1. An intelligent fixed-position barbed wire placement device, characterized in that, include: A fixing pipe (1) is installed on the stern railing (2); An underwater observation device, comprising an underwater multi-functional probe (6), a display screen (7) and a connecting line (8), wherein the underwater multi-functional probe (6) and the display screen (7) are electrically connected via the connecting line (8), a bracket (9) is mounted on the fixed tube (1), the display screen (7) is fixedly connected to the bracket (9), a reel (10) is fixedly connected to the fixed tube (1), and the connecting line (8) is wound around the reel (10); A fixed barbed wire storage device includes a rod (3), a support rod (4) and a handle (32) are fixedly connected to the rod (3), a movable frame (5) is rotatably connected to the support rod (4), the movable frame (5) is snapped onto the rod (3), and the rod (3) is movably connected to the fixed tube (1) through an adjustment mechanism.
2. The intelligent fixed-position barbed wire placement device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment gear disk one (11) and an adjustment gear disk two (12). A sleeve one (13) is fixedly connected to the fixed tube (1). The adjustment gear disk one (11) is fixedly connected to the sleeve one (13) through a connecting block. A first connecting rod (14) is fixedly connected to the adjustment gear disk one (11). A stud (15) is fixedly connected to the first connecting rod (14). A through hole is opened on the adjustment gear disk two (12). The first connecting rod (14) passes through the through hole. A threaded tube (16) is threaded to the stud (15). A knob (17) is fixedly connected to the threaded tube (16). The adjustment gear disk one (11) and the adjustment gear disk two (12) fit together. The rod body (3) is detachably connected to the adjustment gear disk two (12).
3. The intelligent fixed-position barbed wire placement device according to claim 2, characterized in that: A support plate (18) is fixedly connected to the second adjusting gear (12), and a pipe clamp (19) is fixedly connected to the support plate (18). The rod (3) is snapped into the pipe clamp (19). A through hole is opened on the pipe clamp (19), and a bolt (20) is inserted in the through hole. A nut (21) is threaded onto the bolt (20).
4. The intelligent fixed-position barbed wire placement device according to claim 2, characterized in that: A limiting ring (22) is fixedly connected inside the threaded tube (16), and a second connecting rod (23) is fixedly connected to the stud (15), and a baffle (24) is fixedly connected to the second connecting rod (23).
5. The intelligent fixed-position barbed wire placement device according to claim 1, characterized in that: Both the support rod (4) and the rod body (3) are provided with slots, and the movable frame (5) is fixedly connected with a protrusion (25), which is adapted to the slot.
6. The intelligent fixed-position barbed wire placement device according to claim 1, characterized in that: The bracket (9) includes a U-shaped plate (26), the display screen (7) is fixedly connected to the U-shaped plate (26), and through holes are provided on both the U-shaped plate (26) and the fixing tube (1). Bolt 2 (27) is inserted in the through hole, and nut 2 (28) is threadedly connected to bolt 2 (27).
7. The intelligent fixed-position barbed wire placement device according to claim 1, characterized in that: A sleeve two (29) is fixedly connected to the fixed tube (1), and the thread wheel (10) is fixedly connected to the sleeve two (29). A thread hole (33) is opened on the fixed tube (1).
8. The intelligent fixed-position barbed wire placement device according to claim 1, characterized in that: A sunshade (30) is fixedly connected to the display screen (7), and the fixing tube (1) is fixedly connected to the stern railing (2) through a cross tube buckle (31).