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CN-121817148-B - Large-scale cage fishing device and method for cultivation of tuna with yellow fins

CN121817148BCN 121817148 BCN121817148 BCN 121817148BCN-121817148-B

Abstract

The invention relates to the technical field of cage fishing devices, and discloses a large cage fishing device for cultivation of tuna with yellow fins and a fishing method, comprising a piston rod fixedly connected to the inner wall of a piston sleeve, wherein a plurality of water outlets are formed in the outer wall of the piston sleeve, a plurality of through grooves are formed in the inner wall of the piston sleeve, and a plurality of water outlets II are formed in the outer wall of a piston cylinder; when the bottom ring moves to the connecting ring, the connecting ring is driven to move together, at this moment, along with the movement of the connecting ring, two adjacent connecting rings at the bottommost end are close to each other, at this moment, a piston sleeve and a piston cylinder arranged between the two adjacent connecting rings are also close to each other, when the piston cylinder and the piston sleeve are close to each other, the piston cylinder can discharge seawater in the piston sleeve through a water outlet, and a piston rod arranged in the piston sleeve can also discharge the seawater stored in the piston cylinder through a water outlet when the piston sleeve and the piston cylinder are close to each other.

Inventors

  • YANG RUI
  • MA ZHENHUA
  • HU JING
  • ZHAO WANG
  • ZHOU SHENGJIE
  • Fu Zhengdai
  • HONG YUANQING

Assignees

  • 三亚热带水产研究院

Dates

Publication Date
20260505
Application Date
20260311

Claims (7)

  1. 1. The utility model provides a large-scale box with a net of yellow fin tuna breed catches device, includes floating platform (13), the outer wall department fixedly connected with net (14) of floating platform (13), the outer wall department fixedly connected with of floating platform (13) a plurality of motor (15), the outer wall department fixedly connected with of floating platform (13) a plurality of winding device (16), its characterized in that still includes: the driving mechanism (1) is fixedly arranged at the outer wall of the netting (14), and the driving mechanism (1) is used for driving fish shoals during net collection; the limiting mechanism (2) is fixedly arranged at the inner wall of the driving mechanism (1), and the limiting mechanism (2) is used for limiting the movement of the driving mechanism (1) to a certain extent; The protection mechanism (3) is fixedly arranged at the outer wall of the winding device (16), and the protection mechanism (3) is used for protecting the netting (14) to a certain extent; The outer wall of the netting (14) is fixedly connected with a connecting ring (111), the outer wall of the netting (14) is fixedly connected with a bottom ring (112), and the outer wall of the connecting ring (111) is fixedly connected with a plurality of connecting rods (113); The outer wall of the motor (15) is fixedly connected with the inner wall of the winding device (16), the connecting ring (111) is positioned at the outer side of the net cage, the connecting rod (113) is positioned at the inner side of the netting (14), and the bottom ring (112) is fixed at the bottommost part of the netting (14); The driving mechanism (1) includes: The support assembly (11) is fixedly arranged at the outer wall of the connecting rod (113); The supporting component (11) comprises a plurality of piston sleeves (114) fixedly connected to the outer wall of the connecting ring (111), and a plurality of piston cylinders (115) are fixedly connected to the outer wall of the connecting ring (111); the limiting mechanism (2) includes: A limiting assembly (21), wherein the limiting assembly (21) is fixedly arranged at the inner wall of the driving assembly (12); A movable component (22), wherein the movable component (22) is fixedly arranged at the inner wall of the limiting component (21); Wherein the limiting component (21) is used for limiting the movement in the driving component (12) to a certain extent, and part of the components of the movable component (22) move in the limiting component (21); The movable assembly (22) comprises a limiting ball II (221) which is connected with the inner wall of the piston cylinder (115) in a sliding manner, a limiting spring (222) is fixedly connected with the inner wall of the piston cylinder (115), and a guy cable (223) is fixedly connected with the outer wall of the winding device (16); The protection mechanism (3) comprises: -a protective assembly (31), the protective assembly (31) being fixedly arranged at the outer wall of the connecting ring (111); The protection assembly (31) comprises a limiting ring (313) fixedly connected to the winding device (16), a plurality of fixing rings (311) are fixedly connected to the outer wall of the connecting ring (111), a plurality of fixing rods (312) are fixedly connected to the outer wall of the bottom ring (112), and a plurality of limiting rings (313) are fixedly connected to the outer wall of the floating platform (13); the driving mechanism (1) further comprises: The driving assembly (12) is fixedly arranged at the inner wall of the supporting assembly (11); Wherein the support assembly (11) is used for providing mounting positions and support for components in the driving assembly (12).
  2. 2. The large cage fishing device for yellow fin tuna culture, as claimed in claim 1, wherein the piston sleeve (114) and the piston cylinder (115) are arranged between two adjacent connecting rings (111), the outer wall of the piston cylinder (115) is in sliding connection with the inner wall of the piston sleeve (114), and the piston sleeve (114) and the piston cylinder (115) are filled with seawater.
  3. 3. The large cage fishing device for yellow fin tuna culture, as set forth in claim 2, characterized in that the driving assembly (12) comprises a piston rod (121) fixedly connected to the inner wall of a piston sleeve (114), a plurality of water outlet holes (122) are formed in the outer wall of the piston sleeve (114), a plurality of through grooves (123) are formed in the inner wall of the piston sleeve (114), and a plurality of water outlet holes II (124) are formed in the outer wall of the piston cylinder (115); wherein, the through groove (123) is arranged to enable the piston sleeve (114) to be connected with the outside.
  4. 4. The large cage fishing device for yellow fin tuna culture, as set forth in claim 3, wherein the limiting assembly (21) comprises a limiting ball (211) slidably connected to the inner wall of a piston sleeve (114), a reset spring (212) is fixedly connected to the inner wall of the piston sleeve (114), and a plurality of notches (213) are formed in the inner wall of the piston cylinder (115); The piston cylinder (115) is communicated with the outside through the notch (213), and the limiting ball (211) is clung to the inner wall of the piston sleeve (114) under the action of the return spring (212) to block the piston sleeve (114).
  5. 5. The large cage fishing device for yellow fin tuna culture, as claimed in claim 4, wherein the limiting ball II (221) is clung to the inner wall of the piston cylinder (115) under the action of the limiting spring (222) to block the piston cylinder (115), the outer wall of one end of the fixing ring (311) far away from the winding device (16) is fixedly connected with the fixing rod (312), and the stay rope (223) penetrates through the fixing rings (311) and is fixedly connected with the inner wall of the fixing rod (312).
  6. 6. The large cage fishing device for yellow fin tuna culture, as set forth in claim 5, characterized in that the protection assembly (31) further comprises a plurality of sliding rings (321) slidingly connected to the outer wall of the floating platform (13), wherein a rotating rod (322) is rotatably connected to the inner wall of the sliding rings (321), and a fixed pull rod (323) is rotatably connected to the inner wall of the rotating rod (322); wherein the outer wall of the fixed pull rod (323) is fixedly connected with the outer wall of the netting (14).
  7. 7. A catching method of a large cage catching device for tuna culture with finless fins, which is characterized by comprising the following steps of, The starting device is used for starting the motor (15) to drive the winding device (16) to start shrinking the netting (14); And S2, capturing the target fish, namely capturing the qualified target fish by using a professional capturing tool after the shrinkage of the netting (14) is completed.

Description

Large-scale cage fishing device and method for cultivation of tuna with yellow fins Technical Field The invention relates to the technical field of cage fishing devices, in particular to a large cage fishing device and a fishing method for cultivation of tuna with yellow fins. Background The yellow fin tuna is used as high-end marine fish with compact meat, high tenderness and extremely high nutritive value, is rich in polyunsaturated fatty acids such as EPA and DHA, is popular with consumers worldwide, is an important food material for raw food material and food culture, and has wide market prospect and extremely high economic value. Unlike conventional marine fish, the tuna with the fin has unique biological characteristics of high swimming speed, strong activity, and gill muscle degeneration, continuous swimming to ensure the oxygen supply of the gill part, stopping swimming and easy hypoxia death, thin and fragile epidermis tissue, easy damage after collision and friction, and serious stress reaction caused by environmental change or improper fishing operation, thereby reducing the quality of fish body, increasing the death rate and greatly reducing the economic benefit of cultivation. In addition, as the cultivation scale continues to expand, the application of the large-scale net cage is increasingly wide, and the fishing mode of the traditional small-scale net cage cannot be adapted to the fishing requirement of the large-scale net cage, so that the development of the fishing device and the fishing method which are adapted to the large-scale net cage and have fishing efficiency and fish quality is an urgent requirement for industrial development. When in actual use, when the netting is contracted to catch the yellow fin tuna, the netting can be damaged when the netting is unfolded again due to mutual overlapping and staggering of the netting after contraction, meanwhile, under the action of water flow, the netting can possibly enter the inside of the net cage, the netting entering the net cage can possibly intertwine with fish shoals in the net cage, and damage to the net cage and the fish body is caused, so that the catching efficiency and cost are affected. Disclosure of Invention In order to solve the technical problems, the invention provides a large-scale cage fishing device for yellow fin tuna culture, which comprises a floating platform, wherein a netting is fixedly connected to the outer wall of the floating platform, a plurality of motors are fixedly connected to the outer wall of the floating platform, a plurality of winding devices are fixedly connected to the outer wall of the floating platform, and the device further comprises: the driving mechanism is fixedly arranged at the outer wall of the netting and is used for driving the fish shoals when the netting is folded; the limiting mechanism is fixedly arranged at the inner wall of the driving mechanism and is used for limiting the movement in the driving mechanism to a certain extent; The protection mechanism is fixedly arranged at the outer wall of the winding device and is used for protecting the netting to a certain extent; the outer wall of the netting is fixedly connected with a connecting ring, the outer wall of the netting is fixedly connected with a bottom ring, and the outer wall of the connecting ring is fixedly connected with a plurality of connecting rods; wherein, the outer wall department of motor and the inner wall department fixed connection of coiling mechanism, the go-between is located the outside of box with a net, and the connecting rod is located the inboard of net, and the bottom ring is fixed in the bottommost of net. Preferably, the driving mechanism includes: the supporting component is fixedly arranged at the outer wall of the connecting rod; the driving assembly is fixedly arranged at the inner wall of the supporting assembly; wherein, the support assembly is used for providing mounted position and support to the part in the driving subassembly. Preferably, the restriction mechanism includes: the limiting component is fixedly arranged at the inner wall of the driving component; the movable component is fixedly arranged at the inner wall of the limiting component; the limiting assembly is used for limiting the movement in the driving assembly to a certain extent, and part of the components of the movable assembly move in the limiting assembly. Preferably, the protection mechanism includes: the protection component is fixedly arranged at the outer wall of the connecting ring; The protection component comprises a limiting ring fixedly connected to the winding device, a plurality of fixing rings are fixedly connected to the outer wall of the connecting ring, a plurality of fixing rods are fixedly connected to the outer wall of the bottom ring, and a plurality of limiting rings are fixedly connected to the outer wall of the floating platform. When the device is used, when the cultivated yellow fin tuna is required