A fishing device for deep-sea cage aquaculture

By designing an automated linkage mechanism in the deep-sea cages, the automatic opening and closing of the cages and their raising and lowering are realized, solving the problem of time-consuming and labor-intensive manual flipping of the nets in the existing technology, improving fishing efficiency and reducing labor intensity.

CN118985501BActive Publication Date: 2026-03-13QINGDAO AGRI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing deep-sea cage aquaculture fishing methods require manual turning of the nets, which is time-consuming, labor-intensive, and physically demanding.

Method used

A deep-sea cage aquaculture fishing equipment was designed, including a column, sleeve, crossbar, movable sleeve and cage. The cage is automatically opened, closed and raised through a linkage mechanism, and the fish automatically fall into the feeding trough, reducing manual operation.

Benefits of technology

It improves fishing efficiency, reduces labor intensity, and enables the automatic release of fish from the net without the need for manual flipping of the net, thus reducing labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a fishing device for deep-sea cage aquaculture, comprising a column mounted on a deep-sea cage platform, a sleeve mounted on the column and rotating on the column, a crossbar mounted on the sleeve, a movable sleeve mounted on the crossbar and moving on the crossbar, and a bottom cage mounted on the movable sleeve. The deep-sea cage platform is equipped with a feeding chute. The cage has a rotatable door on its side, with its upper end rotatably connected to the cage. When the movable sleeve moves, the door opens and closes under the action of a first linkage mechanism. During fishing, the sleeve drives the crossbar to swing, and after the crossbar swings into the deep-sea cage, the cage descends and enters the deep-sea cage. Afterward, the cage rises and scoops up the fish, and the crossbar swings outward. Under the action of the first linkage mechanism, the cage's door opens, and the fish in the cage fall into the feeding chute. Guided by the feeding chute, the fish enter the fishing boat, eliminating the need for manual turning of the net to empty the fish, thus reducing labor intensity.
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Description

Technical Field

[0001] This invention relates to the field of marine fish farming technology, specifically to a fishing equipment for deep-sea cage aquaculture. Background Technology

[0002] Deep-sea aquaculture has always been a method of aquaculture strongly promoted by the state. Nearshore tidal flat aquaculture suffers from severe pollution and poor resistance to wind and waves, making deep-sea aquaculture a promising prospect. Deep-sea cages are a commonly used aquaculture method. Deep-sea cages consist of a frame system, net cages, a fixing system, and supporting facilities. They utilize the interaction of the fixed platform and the characteristics of the cage itself to lower the cage to a limited depth underwater.

[0003] Fish are cultured in deep-sea cages for a period of time before being harvested. Current harvesting methods involve using cranes to lift nets from the cages and transfer the fish to a fishing boat. However, after placing the nets on the boat, manual labor is required to invert them and remove the fish, which is time-consuming, labor-intensive, and physically demanding. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a fishing device for deep-sea cage aquaculture that can release fish from the net, improve efficiency, and reduce labor intensity.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A fishing device for deep-sea cage aquaculture includes a column installed on a deep-sea cage platform, a sleeve installed on the column and rotating on the column, a crossbar installed on the sleeve, a movable sleeve installed on the crossbar and moving on the crossbar, and a bottom cage installed on the movable sleeve. The deep-sea cage platform is provided with a material drop chute, and the side of the cage is provided with a switch door that is rotatably connected to the cage at its upper end. When the movable sleeve moves, the switch door is opened and closed under the action of a first linkage mechanism.

[0007] The bottom of the movable sleeve is provided with an installation plate, and the installation plate is provided with a drive mechanism for lifting and lowering the mesh cage;

[0008] The switch door is connected to the side of the cage by a tension spring. The first linkage mechanism includes a drive rod disposed on the upper surface of both sides of the switch door and a stop rod disposed on the crossbar that cooperates with the drive rod.

[0009] Furthermore, the bottom of the cage is inclined.

[0010] Furthermore, the bottom of the movable sleeve is provided with a vertical rod that connects to the mounting plate.

[0011] Furthermore, the drive mechanism includes rotating shafts symmetrically arranged on the mounting plate, the two rotating shafts being connected by a timing belt, and a drum at each end of the rotating shaft. An opening is provided on the mounting plate at a position corresponding to the drum, and the wire rope on the drum passes through the opening and is connected to the net cage.

[0012] Furthermore, the deep-sea cage platform is equipped with a base, and the column is fixed on the base.

[0013] Furthermore, the base is provided with a vertical guide groove, and a slider that moves up and down within the guide groove is provided in the guide groove. The upper end of the sleeve is provided with an annular protrusion, and the side of the slider is provided with a groove that mates with the annular protrusion. An arc-shaped guide hole is provided on the outer cylindrical surface of the sleeve, and a guide rod that mates with the guide hole is provided on the base.

[0014] Furthermore, the upper end of the guide groove is provided with a lifting hydraulic cylinder for driving the slider to rise and fall.

[0015] Furthermore, when the sleeve rotates, the moving sleeve moves under the action of the second linkage mechanism.

[0016] Furthermore, the second linkage mechanism includes a swing arm and a connecting rod disposed on the upper end of the column. One end of the connecting rod is rotatably connected to the end of the swing arm, and the other end of the connecting rod is provided with a fixed shaft. The movable sleeve is provided with a fixed sleeve, and the lower end of the fixed shaft extends into the fixed sleeve and slides within the fixed sleeve.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention includes a column mounted on a deep-sea cage platform, a sleeve mounted on the column and rotating on the column, a crossbar mounted on the sleeve, a movable sleeve mounted on the crossbar and moving on the crossbar, and a bottom cage mounted on the movable sleeve. The deep-sea cage platform is provided with a feeding chute. The side of the cage is provided with a switch door rotatably connected to the cage at its upper end. When the movable sleeve moves, the switch door opens and closes under the action of a first linkage mechanism. During fishing, the sleeve drives the crossbar to swing continuously. After the crossbar swings into the deep-sea cage, the movable sleeve drives the cage to move outward, and the cage descends into the deep-sea cage. Afterward, the cage rises and scoops up the fish. The crossbar swings outward, and under the action of the first linkage mechanism, the switch door of the cage opens, and the fish in the cage fall into the feeding chute. Guided by the feeding chute, the fish enter the fishing boat, improving efficiency and eliminating the need for manual turning of the net to empty the fish, thus reducing labor intensity. 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 description of the embodiments or the prior art will be briefly introduced below. Obviously, 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 structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is the front view of the present invention.

[0023] In the diagram: 1. Column; 2. Sleeve; 3. Horizontal bar; 4. Moving sleeve; 5. Mesh box; 6. Drop chute; 7. Mounting plate; 8. Opening / closing door; 9. Vertical bar; 10. Rotating shaft; 11. Synchronous belt; 12. Opening; 13. Tension spring; 14. Drive rod; 15. Stop bar; 16. Base; 17. Guide groove; 18. Slider; 19. Annular protrusion; 20. Groove; 21. Guide hole; 22. Guide rod; 23. Lifting hydraulic cylinder; 24. Swing arm; 25. Connecting rod; 26. Fixed shaft; 27. Fixed sleeve. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0025] like Figure 1 and Figure 2As shown, a fishing device for deep-sea cage aquaculture includes a column 1 mounted on a deep-sea cage platform, a sleeve 2 mounted on the column 1 and rotating on the column 1, a crossbar 3 mounted on the sleeve 2, a movable sleeve 4 mounted on the crossbar 3 and moving on the crossbar 3, and a bottom cage 5 mounted on the movable sleeve 4. A feed chute 6 is provided on the deep-sea cage platform. A switch door 8, rotatably connected to the upper end of the cage 5, is provided on the side of the cage 5. When the movable sleeve 4 moves, it is activated by a first linkage mechanism. The opening and closing mechanism is used to open and close the door 8. During fishing, the sleeve 2 drives the crossbar 3 to swing continuously. After the crossbar 3 swings into the deep-sea cage, the moving sleeve 4 drives the cage to move outward. The cage 5 descends and enters the deep-sea cage. After the cage rises and catches the fish, the crossbar 3 swings outward. Under the action of the first linkage mechanism, the opening and closing door of the cage 5 opens, and the fish in the cage 5 fall into the feed chute 6. Guided by the feed chute 6, the fish enter the fishing boat, which improves efficiency and eliminates the need for manual turning of the net to empty the fish, thus reducing labor intensity.

[0026] like Figure 1 As shown, the bottom of the movable sleeve 4 is provided with an installation plate 7, and the installation plate 7 is provided with a drive mechanism for driving the mesh box 5 to rise and fall.

[0027] like Figure 2 and Figure 3 As shown, the opening and closing door 8 is connected to the side of the net cage 5 by a tension spring 13. The first linkage mechanism includes a drive rod 14 disposed on the upper part of both sides of the opening and closing door 8 and a stop rod 15 disposed on the crossbar 3 and cooperating with the drive rod 14. Under normal circumstances, the opening and closing door 8 is closed under the action of the tension spring 13. When the moving sleeve 4 moves towards the column 1, the stop rod 15 contacts the upper end of the drive rod 14, and the opening and closing door 8 opens against the elastic force of the tension spring 13. The fish in the net cage 5 fall into the discharge chute 6, realizing the automatic opening of the net bag, so that all the fish in the net bag fall out, reducing labor intensity. The movement of the moving sleeve 4 and the opening and closing of the opening and closing door 8 are linked by a mechanical structure, which is low in cost and has good reliability.

[0028] like Figure 3 As shown, the bottom of the net cage 5 is tilted, and the bottom of the net bag is at the lowest point near the opening and closing door. When the opening and closing door is opened, the fish in the net bag will fall completely out.

[0029] like Figure 3 As shown, the bottom of the movable sleeve 4 is provided with a vertical rod 9 that is connected to the mounting plate 7.

[0030] like Figure 1As shown, the driving mechanism includes symmetrically arranged rotating shafts 10 on the mounting plate 7. Both ends of the rotating shafts 10 are supported on the mounting plate 7 by bearings. The two rotating shafts 10 are connected by a synchronous belt 11. A motor is mounted on the mounting plate 7 to drive the rotation of one rotating shaft 10. A gear is mounted on the motor's output shaft, and a gear on the rotating shaft 10 meshes with the gear on the motor's output shaft. Four drums are provided at both ends of the rotating shafts 10. An opening 12 is provided on the mounting plate 7 at a position corresponding to the drum. The wire rope on the drum passes through the opening 12 and connects to the net cage 5. By providing four drums, the net cage 5 is prevented from rotating when it rises or falls or swings with the crossbar 3; that is, the opening and closing doors of the net cage 5 are located on the same side. The first linkage mechanism ensures that the opening and closing doors can be opened.

[0031] like Figure 1 As shown, the deep-sea cage platform is provided with a base 16, and the column 1 is fixed on the base 16.

[0032] like Figure 1 and Figure 3 As shown, the base 16 is provided with a vertical guide groove 17, and a slider 18 that moves up and down within the guide groove 17 is provided inside the guide groove 17. The upper end of the sleeve 2 is provided with an annular protrusion 19, and the side of the slider 18 is provided with a groove 20 that cooperates with the annular protrusion 19. The outer cylindrical surface of the sleeve 2 is provided with an arc-shaped guide hole 21, and the base 16 is provided with a guide rod 22 that cooperates with the guide hole 21. When the slider 18 moves up and down, the sleeve 2 moves up and down under the action of the groove 20 and the annular protrusion 19, and at the same time, the sleeve 2 rotates under the action of the guide rod 22 and the guide hole 21.

[0033] like Figure 1 As shown, the upper end of the guide groove 17 is provided with a lifting hydraulic cylinder 23 that drives the slider 18 to rise and fall.

[0034] like Figure 1 As shown, when the sleeve 2 rotates, the movable sleeve 4 moves under the action of the second linkage mechanism. The second linkage mechanism includes a swing arm 24 and a connecting rod 25 disposed on the upper end of the column 1. One end of the connecting rod 25 is rotatably connected to the end of the swing arm 24, and the other end of the connecting rod 25 is provided with a fixed shaft 26. The movable sleeve 4 is provided with a fixed sleeve 27, and the lower end of the fixed shaft 26 extends into the fixed sleeve 27 and slides within the fixed sleeve 27. When the crossbar 3 swings outward, the swing arm 24 remains stationary, and under the action of the connecting rod 25, the movable sleeve 4 moves towards the column 1. When the crossbar 3 swings into the deep-sea cage, under the action of the connecting rod 25, the movable sleeve 4 moves away from the column 1.

[0035] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention 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. Therefore, they should not be construed as limitations on the present invention.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A fishing device for deep-sea cage aquaculture, characterized in that, The system includes a column (1) set on a deep-sea cage platform, a sleeve (2) set on the column (1) and rotating on the column (1), a crossbar (3) set on the sleeve (2), a movable sleeve (4) set on the crossbar (3) and moving on the crossbar (3), and a bottom cage (5) set on the movable sleeve (4). The deep-sea cage platform is provided with a material drop chute (6). The side of the cage (5) is provided with a switch door (8) that is rotatably connected to the top of the cage (5). When the movable sleeve (4) moves, the switch door (8) is opened and closed under the action of the first linkage mechanism. The bottom of the movable sleeve (4) is provided with an installation plate (7), and the installation plate (7) is provided with a drive mechanism for driving the mesh box (5) to rise and fall; The switch door (8) is connected to the side of the net box (5) by a tension spring (13). The first linkage mechanism includes a drive rod (14) set on the upper side of both sides of the switch door (8) and a stop rod (15) set on the crossbar (3) and cooperating with the drive rod (14). The deep-sea cage platform is provided with a base (16), and the column (1) is fixed on the base (16); the base (16) is provided with a vertical guide groove (17), and a slider (18) that moves up and down in the guide groove (17) is provided in the guide groove (17); the upper end of the sleeve (2) is provided with an annular protrusion (19), and the side of the slider (18) is provided with a groove (20) that cooperates with the annular protrusion (19); the outer cylindrical surface of the sleeve (2) is provided with an arc-shaped guide hole (21), and the base (16) is provided with a guide rod (22) that cooperates with the guide hole (21); the upper end of the guide groove (17) is provided with a lifting hydraulic cylinder (23) that drives the slider (18) to move up and down. When the sleeve (2) rotates, the moving sleeve (4) moves under the action of the second linkage mechanism; the second linkage mechanism includes a swing arm (24) and a connecting rod (25) set on the upper end of the column (1). One end of the connecting rod (25) is rotatably connected to the end of the swing arm (24), and the other end of the connecting rod (25) is provided with a fixed shaft (26). The moving sleeve (4) is provided with a fixed sleeve (27), and the lower end of the fixed shaft (26) extends into the fixed sleeve (27) and slides in the fixed sleeve (27).

2. The fishing equipment for deep-sea cage aquaculture as described in claim 1, characterized in that, The bottom of the cage (5) is set at an angle.

3. The fishing equipment for deep-sea cage aquaculture as described in claim 1, characterized in that, The bottom of the movable sleeve (4) is provided with a vertical rod (9) that is connected to the mounting plate (7).

4. The fishing equipment for deep-sea cage aquaculture as described in claim 1, characterized in that, The drive mechanism includes rotating shafts (10) symmetrically arranged on the mounting plate (7). The two rotating shafts (10) are connected by a synchronous belt (11). Both ends of the rotating shafts (10) are provided with drums. The mounting plate (7) is provided with an opening (12) at the position corresponding to the drum. The wire rope on the drum passes through the opening (12) and is connected to the net box (5).

Citation Information

Patent Citations

  • System for deep-sea aquaculture

    CN106818577A

  • Fish breeding box

    CN108338115A