CN-121647210-B - Lifting truss net cage for semi-submerged cultivation bottom-sitting avoidance platform

Abstract

The application belongs to the technical field of marine aquaculture, and discloses a lifting truss net cage for a semi-submerged aquaculture bottom-sitting avoidance platform, which comprises a truss net cage structure, wherein a net is arranged in the truss net cage structure, the lifting truss net cage further comprises a multi-working-condition ballast tank assembly, a positioning ballast tank, a traction rope and a fish inlet and outlet assembly, the multi-working-condition ballast tank assembly is connected to the front and the back of the bottom end of the truss net cage structure, the truss net cage structure can actively and rapidly switch among floating, semi-submerged and full-submerged states according to sea condition forecast or real-time monitoring data, and can be submerged to the semi-submerged or full-submerged state when encountering extreme weather such as typhoons, so that the area with the strongest surface storm impact is avoided, the risk of damage to the truss net cage structure and escape of fish flocks is greatly reduced, and the span from 'passive bearing' to 'active avoidance' is realized.

Inventors

• YANG ZICHAO
• ZHANG CHAO
• WANG CHAO
• SONG ZIPENG
• WANG KUN
• SHENG PEI
• GUO YANPING
• LIU PENG
• LIN HAI
• Qu guangnan
• DAI MINGYAN
• WANG GAOXING
• Fang Senmiao
• CHENG CONG
• Xun Mingzhi
• CHEN HUALIN
• XU YANQING
• YAN JUN
• ZHU WENBO
• YAO HUIBO
• LIU YONGBIN

Assignees

• 中交华南交通建设有限公司
• 中交广州航道局有限公司
• 珠海市海洋装备研究院有限公司

Dates

Publication Date

20260508

Application Date

20260206

Claims (4)

1. 1. The lifting truss net cage for the semi-submerged cultivation bottom-sitting avoidance platform is characterized by comprising a truss net cage structure (1), wherein a netting (2) is arranged in the truss net cage structure (1); the lifting truss net cage further comprises a multi-working-condition ballast tank assembly (3), a positioning ballast tank (4), a traction rope (5) and a fish inlet and outlet assembly (6); The multi-working-condition ballast tank assembly (3) is connected to the front surface and the back surface of the bottom end of the truss net cage structure (1), the positioning type ballast tanks (4) are connected to the other two sides of the bottom end of the truss net cage structure (1) and are matched with the multi-working-condition ballast tank assembly (3), and the truss net cage structure (1) is in floating, semi-submerged and full-submerged states in water by controlling water inlet and water outlet of each ballast tank; The number of the haulage ropes (5) is two, and the haulage ropes are respectively connected with the two multi-station ballast tank assemblies (3); the fish inlet and outlet assembly (6) is connected to the inside of the truss net cage structure (1) and is used for fish inlet and outlet; The fish inlet and outlet assembly (6) comprises two conical pipes (61) fixedly arranged in the truss cage structure (1), a plurality of positioning blocks (62) are fixedly arranged on the outer sides of the conical pipes (61), one positioning block (62) is internally connected with a rotating plate (63) in a rotating mode, and the other positioning block (62) is internally connected with a fixing pin (64) penetrating through the rotating plate (63) in a sliding mode; A plurality of placing grooves (65) are formed in the circumference of the inner part of the conical tube (61), a communicated round groove (66) is formed in the inner part of the conical tube (61) at one end, close to the rotating plate (63), of the placing groove (65), and a notch (67) communicated with the round groove (66) is formed in the inner part of the conical tube (61); A circular ring (69) is rotationally connected inside the circular groove (66) of the conical tube (61), a pushing strip (68) is fixedly arranged at the position, located inside the notch (67), of the outer side of the circular ring (69), an abutting block (612) is movably connected at the position, located inside the placing groove (65), of the circular ring (69), and the abutting block (612) is located inside the placing groove (65); Limiting plates (610) are fixedly mounted inside the circular ring (69) at equal intervals, two adjacent limiting plates (610) are in a group, telescopic pieces (611) are fixedly mounted between the two limiting plates (610) inside the circular ring (69), and the telescopic pieces (611) are fixedly connected with the abutting blocks (612).
2. 2. Lifting truss net cage for a semi-submersible cultivation base avoidance platform according to claim 1, characterized in that a connecting frame (7) is installed on the outer side of the truss net cage structure (1), and a buffer structure (8) is sleeved on the outer side of the connecting frame (7).
3. 3. The lifting truss net cage for the semi-submerged cultivation base avoidance platform according to claim 1, wherein the abutting block (612) is arc-shaped and is mutually attached to the inner wall of the conical tube (61), and a round corner is formed at the edge of the abutting block (612) close to the inner wall of the conical tube (61).
4. 4. The lifting truss net cage for the semi-submersible cultivation base avoidance platform according to claim 1, wherein two round holes are formed in one end face of the positioning block (62) and one end face of the pushing strip (68) at equal intervals, and limiting pins are fixedly installed in the round holes.

Description

Lifting truss net cage for semi-submerged cultivation bottom-sitting avoidance platform Technical Field The invention belongs to the technical field of marine aquaculture, and particularly relates to a lifting truss net cage for a semi-submerged aquaculture bottom-sitting avoidance platform. Background Along with the declining of global ocean fishery resources and the limited land culture space, deep sea culture becomes an important development direction of the aquaculture industry, and the semi-submersible truss net cage has become one of the main stream equipment for deep sea culture due to the advantages of strong wind and wave resistance, wide applicable water depth range, large culture capacity and the like. The traditional semi-submersible net cage generally adopts a fixed buoyancy design, the draft and stability of the semi-submersible net cage basically remain unchanged after being put in, however, the marine environment is complex and changeable, and different 'working conditions' exist: calm working condition, namely, the net cage is required to provide a larger volume of culture water body, and the height of the starboard above the water surface is maintained, so that daily operations such as feeding, observation and the like are convenient; the net cage needs to have stronger viability under severe sea conditions (such as typhoons and rough waves), and the direct impact of the rough waves is avoided by submerging to a deeper water layer, so that the stress of the structure is reduced; the existing net cage lacks the capability of active and quick switching between different working conditions, and can only bear the impact of wind and waves passively when encountering extreme weather, so that the problems of structural damage of the net cage and huge risk of escape of fish shoals exist. Disclosure of Invention Aiming at the problems that the prior net cage in the prior art lacks the capability of actively and rapidly switching between different working conditions, can only bear the impact of stormy waves passively when encountering extreme weather, and has the huge risks of structural damage of the net cage and escape of fish shoals, the invention provides the following technical scheme: A lifting truss net cage for a semi-submerged cultivation bottom-sitting avoidance platform comprises a truss net cage structure, wherein a net is arranged in the truss net cage structure; the lifting truss net box further comprises a multi-working-condition ballast tank assembly, a positioning ballast tank, a traction rope and a fish inlet and outlet assembly; The multi-station ballast tank assembly is connected to the front and back of the bottom end of the truss net cage structure, the positioning type ballast tanks are connected to the other two sides of the bottom end of the truss net cage structure and are matched with the multi-station ballast tank assembly, and the truss net cage structure is in a floating, semi-submerged and full-submerged state in water by controlling water inlet and water outlet of each ballast tank; the number of the haulage ropes is two, and the haulage ropes are respectively connected with the two multi-station ballast tank assemblies; the fish inlet and outlet assembly is connected inside the truss net cage structure and is used for fish inlet and outlet. As the optimization of the technical scheme, the connecting frame is arranged on the outer side of the truss net cage structure, and the buffer structure is sleeved on the outer side of the connecting frame. As the optimization of the technical scheme, the fish inlet and outlet assembly comprises two conical tubes fixedly arranged in the truss net cage structure, a plurality of positioning blocks are fixedly arranged on the outer sides of the conical tubes, one positioning block is internally connected with a rotating plate in a rotating mode, and the other positioning block is internally connected with a fixing pin penetrating through the rotating plate in a sliding mode. As the optimization of the technical scheme, a plurality of placing grooves are formed in the circumference of the inner portion of the conical tube, the inner portion of the conical tube is located at one end, close to the rotating plate, of the placing grooves, a communicated round groove is formed in the inner portion of the conical tube, and a notch communicated with the round groove is formed in the inner portion of the conical tube. As the optimization of above-mentioned technical scheme, the circular slot inside rotation of conical tube is connected with the ring, the ring outside is located notch inside position department fixed mounting and is pushed the strip, the inside standing groove position department swing joint that is located of ring has the butt piece, the butt piece is located inside the standing groove. As the optimization of the technical scheme, limiting plates are fixedly mounted in the circular ring at equal intervals, a group of adjacen