Fishing device for factory culture pond
By designing a fishing device with guiding and catching mechanisms in the factory-style aquaculture pond, and using an electric motor to drive the fishing net and scraper to drive and catch fish, the problems of low efficiency and high cost of traditional fishing are solved. This improves fishing efficiency, cleans up waste at the bottom of the aquaculture pond, and reduces labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO UNIV
- Filing Date
- 2025-04-23
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional fishing nets are inefficient in factory-style aquaculture ponds, time-consuming, labor-intensive, and costly to operate, and fish are prone to escape. Existing new devices are expensive to build and have limited efficiency improvements, making it difficult to meet the needs of large-scale aquaculture.
Design a fishing device that includes a guiding mechanism, a fishing mechanism, a traction rope, and a motor. The device utilizes U-shaped and horizontal guide rails to achieve continuous movement of the fishing net, combined with a lower crossbar scraper to clean waste from the bottom of the pond, and uses a motor to drive the fish and catch them throughout the entire process.
It improves fishing and cleaning efficiency, reduces labor costs, improves the environment of aquaculture ponds, and enables efficient continuous underground netting, fish driving, and fishing operations, while reducing equipment costs.
Smart Images

Figure CN224178971U_ABST
Abstract
Description
A fishing device for factory-scale aquaculture ponds Technical Field
[0001] This utility model belongs to the field of aquaculture, specifically relating to a fishing device for factory-scale aquaculture ponds. Background Technology
[0002] With the continuous expansion of aquaculture scale, fishing nets, as a key tool in the aquaculture process, are playing an increasingly significant role. However, in actual factory-style aquaculture ponds, the use of traditional fishing nets has exposed many problems, such as low harvesting efficiency, time-consuming and labor-intensive operation, high labor and material costs, and the ease with which harvested aquatic products can escape from the nets, greatly affecting the overall harvesting effect. With the continuous increase in labor costs, the competitiveness of traditional fishing operations is decreasing.
[0003] To address the shortcomings of traditional fishing methods, several new integrated fish-driving and catching devices have emerged in the market. Examples include: horizontally driven net-driving devices: these use mechanical transmission to move the net horizontally, driving fish to a specific area. However, these devices are complex in structure, and their efficiency is greatly affected by water flow and fish behavior. Cart-type fish-driving and catching devices: these use a movable cart carrying the net, moving along the bottom or surface of the pond to gradually gather the fish. However, this method requires a relatively flat pond bottom and lacks flexibility in small-scale ponds. Rotating net catching devices: these use rotating nets to improve catching efficiency, but their complex mechanical structure leads to high maintenance costs and can easily damage the fish. While these new devices improve automation to some extent, they still have the following problems: 1) High construction costs: the complex mechanical structure and drive system result in high equipment prices, making them unaffordable for small and medium-sized aquaculture enterprises; 2) Limited efficiency improvement: the driving and catching speeds of some devices still cannot meet the needs of large-scale aquaculture, and improper operation may even exacerbate stress in the fish, making it easy for aquatic products to escape. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a fishing device for factory aquaculture ponds that realizes the entire process of continuous underground netting, fish driving and fishing, and improves the efficiency of fish catching.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a fishing device for factory-scale aquaculture ponds, including a guiding mechanism, a fishing mechanism, a traction rope, and a motor; the guiding mechanism includes two symmetrically arranged U-shaped guide rails, a horizontal guide rail is fixedly arranged on the top outer wall of the U-shaped guide rails, an upper guide groove is provided on the upper surface of the horizontal guide rails, and a side guide groove is provided on the inner wall of the U-shaped guide rails; the fishing mechanism includes an upper crossbar movable along the horizontal guide rails, a lower crossbar movable along the U-shaped guide rails, and a mechanism disposed on the upper crossbar and the lower crossbar. The fishing net consists of horizontal bars, with telescopic rods connected to both sides for adjusting the distance between the upper and lower horizontal bars. The top of each telescopic rod is fixedly connected to the upper horizontal bar, and the bottom of each telescopic rod is rotatably connected to the lower horizontal bar via a pivot. Guide posts are symmetrically arranged at the bottom of both ends of the upper horizontal bar, and these guide posts are fitted into and slidably engaged with the upper guide groove. Rollers are symmetrically arranged in the recessed areas on both sides of the lower horizontal bar, and these rollers are fitted into and slidably engaged with the side guide groove. One end of the pulling rope is connected to the lower horizontal bar, and the other end is connected to a winch on the motor.
[0006] Furthermore, the cross-section of the U-shaped guide rail is C-shaped, and its curved section is a 90° arc transition section. This facilitates the lower crossbar's continued upward movement along the arc transition section.
[0007] Furthermore, the U-shaped guide rail is fixed to the inner wall of the aquaculture tank by nuts.
[0008] Furthermore, a number of limiting rods are provided in the upper guide groove near the motor to prevent the guide column from moving.
[0009] Furthermore, the bottom surface of the horizontal guide rail is in contact with the outer wall of the aquaculture pond.
[0010] Furthermore, the lower crossbar has a trapezoidal cross-section, and a long, narrow scraper is provided on the side of the lower crossbar near the motor for scraping up sediment from the bottom of the aquaculture pond. This effectively cleans the waste deposited at the bottom of the pond. The fish-catching mechanism can achieve continuous processes of netting, driving fish, and catching, and can simultaneously clean the bottom of the aquaculture pond using the scraper at the bottom of the lower crossbar, improving the pond environment and increasing catching and cleaning efficiency.
[0011] Compared with existing technologies, the advantages of this utility model are as follows: This utility model provides a fishing device for factory-scale aquaculture ponds. When the fishing mechanism moves horizontally within the horizontal and U-shaped guide rails, it can drive the aquaculture species within the pond. As the net continues to advance, it further compresses the fishing space. When the upper crossbar reaches the limit bar position, it stops advancing. At this point, the drive motor continues, and the lower crossbar continues to advance and moves upward through a "U" bend to the top. At this point, the entire inside of the fishing net is filled with aquaculture species, ultimately completing the fishing operation. Compared with traditional fishing methods, this significantly improves the efficiency of driving and catching fish. Furthermore, when the fishing mechanism moves horizontally within the U-shaped guide rails, the long strip scraper at the bottom of the lower crossbar can scrape away waste from the bottom of the aquaculture pond, concentrating the waste to one side of the pond, improving cleaning efficiency, greatly reducing labor costs, and providing a better cleaning effect.
[0012] In summary, this utility model provides a fishing device for factory-scale aquaculture ponds. Driven by a motor, the lower crossbar moves along a U-shaped guide rail from one end to the other, simultaneously moving the fishing net and the upper crossbar. This drives the fish in the pond together, and the upward flipping of the net enables synchronized catching of the fish. Ultimately, this achieves continuous netting, fish herding, and catching throughout the entire process, improving catching efficiency. Furthermore, the scraper at the bottom of the lower crossbar can be used to clean the pond bottom during catching, improving the pond environment and increasing labor efficiency. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 is a perspective view of the fishing device for factory-scale aquaculture ponds according to this utility model;
[0015] Figure 2 is a top view of the fishing device for factory-scale aquaculture ponds according to this utility model;
[0016] Figure 3 is a schematic diagram of the guide rail mechanism of this utility model;
[0017] Figure 4 is a schematic diagram of the fishing mechanism of this utility model;
[0018] Figure 5 is a magnified structural diagram of point A in Figure 4;
[0019] The following are the labels in the diagram: 1. Guiding mechanism; 2. Fishing mechanism; 3. Traction rope; 4. Motor; 5. U-shaped guide rail; 6. Horizontal guide rail; 7. Upper guide groove; 8. Side guide groove; 9. Upper crossbar; 10. Lower crossbar; 11. Fishing net; 12. Telescopic rod; 13. Rotating shaft; 14. Guide column; 15. Roller; 16. Winch; 17. Arc-shaped transition section; 18. Nut; 19. Aquaculture pond; 20. Limiting rod; 21. Long strip scraper. Detailed Implementation
[0020] In the description of the embodiments of this utility model application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0022] A fishing device for factory-scale aquaculture ponds, as shown in Figures 1, 2, 3, 4, and 5, includes a guiding mechanism 1, a fishing mechanism 2, a traction rope 3, and a motor 4. The guiding mechanism 1 includes two symmetrically arranged U-shaped guide rails 5. A horizontal guide rail 6 is fixedly mounted on the top outer wall of each U-shaped guide rail 5. An upper guide groove 7 is provided on the upper surface of the horizontal guide rail 6, and a side guide groove 8 is provided on the inner wall of each U-shaped guide rail 5. The fishing mechanism 2 includes an upper crossbar 9 movable along the horizontal guide rail 6, a lower crossbar 10 movable along the U-shaped guide rail 5, and a fishing net 11 disposed between the upper crossbar 9 and the lower crossbar 10. The fishing net 11 has two... Telescopic rods 12 for adjusting the distance between the upper crossbar 9 and the lower crossbar 10 are respectively connected to the sides. The top of the telescopic rod 12 is fixedly connected to the upper crossbar 9, and the bottom of the telescopic rod 12 is rotatably connected to the lower crossbar 10 through a rotating shaft 13. Guide posts 14 are symmetrically arranged at the bottom of both ends of the upper crossbar 9. The guide posts 14 are embedded in the upper guide groove 7 and slide in cooperation with the upper guide groove 7. Rollers 15 are symmetrically arranged in the recessed areas on both sides of the lower crossbar 10. The rollers 15 are embedded in the side guide groove 8 and slide in cooperation with the side guide groove 8. One end of the pull rope 3 is connected to the lower crossbar 10 and the other end is connected to the winch 16 on the motor 4.
[0023] In this specific embodiment, as shown in Figure 3, the cross-section of the U-shaped guide rail 5 is C-shaped, and its curved section is a 90° arc transition section 17, which facilitates the continued upward movement of the lower crossbar 10 along the arc transition section 17. The U-shaped guide rail 5 is fixed to the inner wall of the aquaculture tank 19 by nuts 18. Several limiting rods 20 for preventing the movement of the guide column 14 are provided on the side of the upper guide groove 7 near the motor 4. The bottom surface of the horizontal guide rail 6 is in contact with the outer wall of the aquaculture tank 19. The cross-section of the lower crossbar 10 is trapezoidal, and a long strip scraper 21 for scraping up the sediment at the bottom of the aquaculture tank 19 is provided on the side of the lower crossbar 10 near the motor 4, which can effectively clean the sediment at the bottom of the aquaculture tank 19.
[0024] Working process: Before fishing, one end of the traction rope 3 is fixed to the lower crossbar 10 and the other end is fixed to the winch 16. Two rollers 15 are installed in the recessed areas on both sides of the U-shaped guide rail 5. The motor 4 is started, and the motor 4 drives the winch 16 to rotate together. The winch 16 drives the traction rope 3 to pull the lower crossbar 10. The lower crossbar 10 moves horizontally along the U-shaped guide rail 5 towards the motor 4. The lower crossbar 10 drives the fishing net 11 to move horizontally together. The fishing net 11 then drives the upper crossbar 9 to move, thereby driving the farmed species. As the long strip scraper 21 on the lower crossbar 10 moves, it cleans the bottom of the aquaculture pond 19, pushing the waste at the bottom of the aquaculture pond 19 to one side. As the fishing net 11 continues to move forward, the space inside the fishing net 11 is further compressed. When the upper crossbar 9 moves to the limit bar 20, the upper crossbar 9 stops moving forward. At this time, driven by the motor 4, the lower crossbar 10 continues to move along the U-shaped guide rail 5. After passing the bend of the lower crossbar 10, it moves towards the water surface and reaches a certain height. Then the motor 4 is turned off, and the fish can be caught.
[0025] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A fishing device for factory-scale aquaculture ponds, characterized in that... The system includes a guiding mechanism, a fishing mechanism, a traction rope, and a motor. The guiding mechanism comprises two symmetrically arranged U-shaped guide rails. A horizontal guide rail is fixedly mounted on the top outer wall of each U-shaped guide rail. An upper guide groove is provided on the upper surface of the horizontal guide rail, and a side guide groove is provided on the inner wall of each U-shaped guide rail. The fishing mechanism includes an upper crossbar movable along the horizontal guide rail, a lower crossbar movable along the U-shaped guide rail, and a fishing net positioned between the upper and lower crossbars. The fishing net has two connecting points on either side for adjusting the upper and lower crossbars. The telescopic rods are used to separate the horizontal bars. The top of the telescopic rods is fixedly connected to the upper horizontal bar, and the bottom of the telescopic rods is rotatably connected to the lower horizontal bar via a pivot. Guide posts are symmetrically arranged at the bottom of both ends of the upper horizontal bar, and the guide posts are embedded in and slidably engaged with the upper guide groove. Rollers are symmetrically arranged in the recessed areas on both sides of the lower horizontal bar, and the rollers are embedded in and slidably engaged with the side guide groove. One end of the traction rope is connected to the lower horizontal bar, and the other end is connected to the winch on the motor.
2. The fishing device for factory-scale aquaculture ponds according to claim 1, characterized in that: The U-shaped guide rail has a C-shaped cross-section and its curved section is a 90° arc transition section.
3. The fishing device for factory-scale aquaculture ponds according to claim 1, characterized in that: The U-shaped guide rail is fixed to the inner wall of the aquaculture tank by nuts.
4. The fishing device for factory-scale aquaculture ponds according to claim 1, characterized in that: The upper guide groove is provided with several limiting rods on the side near the motor to prevent the guide column from moving.
5. A fishing device for factory-scale aquaculture ponds according to claim 1, characterized in that: The bottom surface of the horizontal guide rail is in contact with the outer wall of the aquaculture pond.
6. A fishing device for factory-scale aquaculture ponds according to claim 1, characterized in that: The lower crossbar has a trapezoidal cross-section, and a long scraper for scraping up sediment at the bottom of the aquaculture pond is provided on the side of the lower crossbar near the motor.