Built-in net cage of telescopic measuring culture barrel
By designing a retractable built-in net cage, the problems of cage height adaptability and oxygen supply were solved, enabling flexible adaptation to the needs of barrels at different depths, reducing costs and improving the biological growth environment.
Patent Information
- Application Number
- CN202423265217.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The fixed height of existing net cages is difficult to adapt to aquaculture tanks of different depths, resulting in the need to customize net cages of different specifications, which increases costs and management complexity. At the same time, the lack of oxygen at the bottom of the net cages affects the growth of organisms.
Design a retractable built-in net cage, which changes the height of the net cage by adjusting the support ring and connecting rope, increases the oxygen supply by using a ring-shaped water distribution pipe, and uses a spring and barbed structure to stabilize the position of the connecting rope.
This allows for flexible adaptation of cage height, reduces customization costs, improves oxygen supply at the bottom of the cage, and promotes biological growth and health.
Smart Images

Figure CN223730542U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aquaculture technology, and in particular relates to a retractable measuring aquaculture tank with an internal net cage. Background Technology
[0002] In the aquaculture sector, traditional farming methods mainly include pond culture and nearshore cage culture. However, with technological advancements and the emergence of specific farming needs, the use of small-scale measuring tanks combined with built-in cages has begun to attract attention. In actual farming scenarios, different depths of tanks are used depending on the growth stage and quantity of the farmed organisms. Existing cages, due to their fixed height, are difficult to adapt to tanks of various depths. This means that different specifications of cages need to be customized to match tanks of different depths, increasing costs and management complexity. Utility Model Content
[0003] This invention addresses the problem in existing technologies where different depths of culture tanks are used to accommodate varying growth stages and numbers of cultured organisms. Some net cages, due to their fixed height, are difficult to adapt to culture tanks of different depths. This necessitates custom-making net cages of varying sizes to match different depths, increasing costs and management complexity. The following technical solution is proposed:
[0004] A retractable measuring aquaculture tank with an internal net cage includes two support rings. A net bag is fixedly connected between the two support rings. An air bladder is fixedly installed at the top of the top support ring. A fixing ring is provided at the bottom edge inside the net bag. Three fixing seats are symmetrically fixedly installed at the top of the outer surface of the fixing ring. A connecting rope is connected through the interior of each of the three fixing seats. A fixing sleeve is connected through the outer surface of the other end of each of the three connecting ropes.
[0005] As a preferred embodiment of the above technical solution, an annular water distribution pipe is fixedly installed inside the outer surface of the fixed ring, and a connecting pipe is fixedly installed at the top of the outer surface of the water distribution pipe.
[0006] As a preferred embodiment of the above technical solution, three isolation covers are fixedly installed on the inner wall of the net bag, and the three connecting ropes are located inside the isolation covers.
[0007] As a preferred embodiment of the above technical solution, the outer surface of the annular water distribution pipe is provided with several water outlets, and several diffuser frames are provided at the locations of the several water outlets. The horizontal distance between the two sides of the several diffuser frames gradually increases towards the center of the net.
[0008] As a preferred embodiment of the above technical solution, a spring is fixedly installed at one end inside the fixing sleeve, and a compression sleeve is fixedly connected to one end of the spring.
[0009] As a preferred embodiment of the above technical solution, both the fixing sleeve and the compression sleeve are provided with two sliding holes, and the inner walls of the four sliding holes are provided with barbed protrusions, the tips of the barbed protrusions being opposite to the direction of the fixing seat.
[0010] The beneficial effects of this utility model are as follows:
[0011] (1) By pulling the connecting rope to change the distance between the two support rings, the height of the built-in net cage can be reduced, so that the built-in net cage can adapt to breeding buckets of different depths, avoiding the problem of customizing net cages of different specifications to match buckets of different depths, which increases the cost and management complexity.
[0012] (2) By filling the annular water distribution pipe with water, the water flowing out of the annular water distribution pipe outlet will generate water flow and water splash, increase the oxygen value, effectively improve the problem of oxygen deficiency at the bottom of the net cage, and help the growth and health of organisms. Attached Figure Description
[0013] Figure 1 The diagram shown is a structural schematic of a retractable measuring aquaculture tank with an internal mesh cage in Example 1;
[0014] Figure 2 The diagram shown is a schematic of the installation structure of the fixing ring in Embodiment 1;
[0015] Figure 3 The diagram shown is a schematic diagram of the mounting structure of the fixing base in Embodiment 1;
[0016] Figure 4 The diagram shown is a schematic of the spring mounting structure in Embodiment 1.
[0017] In the diagram: 1. Support ring; 2. Net bag; 3. Airbag; 4. Fixing base; 5. Connecting rope; 6. Fixing sleeve; 7. Annular water distribution pipe; 8. Connecting pipe; 9. Fixing ring; 11. Isolation cover; 12. Diffuser frame; 13. Spring; 14. Compression sleeve. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0019] Example 1: This utility model provides a retractable measuring aquaculture tank with an internal net cage, such as... Figures 1 to 4 As shown, it includes a support ring 1, there are two support rings 1, a net bag 2 is fixedly connected between the two support rings 1, an airbag 3 is fixedly installed at the top of the top support ring 1, a fixing ring 9 is provided at the bottom edge inside the net bag 2, three fixing seats 4 are symmetrically fixedly installed at the top of the outer surface of the fixing ring 9, a connecting rope 5 is connected through the inside of each of the three fixing seats 4, and a fixing sleeve 6 is connected through the outer surface of the other end of each of the three connecting ropes 5.
[0020] like Figure 2 and 3 As shown, an annular water distribution pipe 7 is fixedly installed at the bottom edge of the inside of the net bag 2, and a connecting pipe 8 is fixedly installed at the top of the outer surface of the water distribution pipe. One end of the connecting pipe 8 is connected to an external water source. Water is poured into the connecting pipe 8 through a tap, and the water flows along the annular water distribution pipe 7 from the bottom edge of the net bag 2 to the center of the bottom of the net bag 2. The water sprayed from the outlet of the annular water distribution pipe 7 will generate water flow and water splash, increase the oxygen value, effectively improve the problem of oxygen deficiency at the bottom of the net cage, and help the growth and health of organisms.
[0021] like Figure 2 and 3 As shown, three isolation covers 11 are fixedly installed on the inner wall of the net 2. The isolation covers are made of the same material as the net. Three connecting ropes 5 are located inside the isolation covers 11 to isolate the organism from contact with the connecting ropes 5, prevent the organism from getting tangled with the connecting ropes 5, and solve the problem of restricting the organism's activity.
[0022] like Figure 2 and 3 As shown, the outer surface of the annular water distribution pipe 7 is provided with several water outlets, and several diffuser frames 12 are provided at the positions of the water outlets. The horizontal distance between the two sides of the diffuser frames 12 gradually increases towards the middle of the net bag 2, thereby expanding the water flow range and avoiding the problem that the gap between the two water outlets cannot be flushed with water.
[0023] like Figure 3 and 4 As shown, a spring 13 is fixedly installed at one end inside the fixed sleeve 6, and a compression sleeve 14 is fixedly connected to one end of the spring 13. The fixed sleeve 6 and the compression sleeve 14 are compressed by the spring 13, causing the fixed sleeve 6 and the compression sleeve 14 to move in opposite directions, thereby compressing the connecting rope 5 inside. By increasing the friction between the connecting rope 5 and the two, the position of the fixed sleeve 6 on the connecting rope 5 is stabilized.
[0024] like Figure 3 and 4 As shown, both the fixing sleeve 6 and the compression sleeve 14 are provided with two sliding holes inside. The inner walls of the four sliding holes are provided with barbed protrusions. The tips of the barbed protrusions are opposite to the direction of the fixing seat 4. When the rope moves in the opposite direction to the direction of the barbed tips, the outer surface of the connecting rope 5 generates friction with the barbs, preventing the connecting rope 5 from continuing to move in this direction, thereby fixing the position of the fixing sleeve 6 on the connecting rope 5.
[0025] Working principle: When the height of the internal net cage needs to be reduced, first, hold the top of the connecting rope 5 with one hand and press the compression sleeve 14 with the other hand. The compression sleeve 14 applies pressure to the spring 13, causing the spring 13 to contract and deform under pressure, making the compression sleeve 14 move into the fixed sleeve 6. This aligns the compression sleeve 14 with the sliding hole inside the fixed sleeve 6, causing the outer surface of the connecting rope 5 to lose its compressive force, allowing the connecting rope 5 to slide inside the fixed sleeve 6. Then, press the compression sleeve 14 and move it towards the bottom of the connecting rope 5. At this time, the rope at the top of the fixed sleeve 6 becomes longer, and the connecting rope 5 at the bottom of the fixed sleeve 6 becomes shorter. This causes the net bag 2 on the connecting rope 5 at the bottom of the fixed sleeve 6 to contract and shorten, thereby shortening the distance between the two support rings, ultimately reducing the height of the net cage. When adjusting to the required height of the net cage, the fixed sleeve 14 is then closed. After the sleeve 6 moves to the side of the net bag 2, the compression sleeve 14 is released. At this time, the spring 13 loses its compressive force, causing the spring 13 to expand and return to its original position. At this time, the two ends of the spring 13 push the fixed sleeve 6 and the compression sleeve 14 respectively, causing the compression sleeve 14 and the fixed sleeve 6 to misalign. This causes the sliding holes on the compression sleeve 14 and the fixed sleeve 6 to misalign, causing the fixed sleeve 6 and the compression sleeve 14 to compress the internal connecting rope 5. By increasing the friction between the connecting rope 5 and the two sleeves, the fixed sleeve 6 is stabilized on the connecting rope 5. At the same time, the bottom end of the connecting rope 5 is affected by gravity and is pulled towards the bottom. Since this direction is opposite to the direction of the barb tip, the outer surface of the connecting rope 5 generates friction with the barb, preventing the connecting rope 5 from continuing to move in this direction. This makes the fixed sleeve 6 more firmly positioned on the connecting rope 5, making the fixed sleeve 6 less likely to loosen.
[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A retractable measuring net cage for a culture bucket, characterized by, Including support ring (1), the quantity of support ring (1) is two, and the net bag (2) is fixedly connected between two support ring (1), the top support ring (1) top end fixed mounting air bag (3), the inside bottom end edge of net bag (2) is provided with fixed ring (9), the outer surface top end of fixed ring (9) is fixedly installed with three fixed seats (4) symmetrically, the inside of three fixed seats (4) is all penetrated and is connected with connecting rope (5), and the outer surface of three connecting rope (5) other end is all penetrated and is connected with fixed sleeve (6).
2. The scalable measuring aquaculture bucket built-in net cage according to claim 1, characterized in that, The outer surface of fixed ring (9) is fixedly installed with annular water distribution pipe (7), and the outer surface top end of water distribution pipe is fixedly installed with connecting pipe (8).
3. The scalable measuring aquaculture bucket built-in net cage according to claim 1, characterized in that, The inner wall of net bag (2) is fixedly installed with three isolating covers (11), and three connecting ropes (5) are located in isolating cover (11).
4. The scalable measuring aquaculture bucket built-in net cage according to claim 2, characterized in that, The outer surface of annular water distribution pipe (7) is provided with a plurality of water outlets, a plurality of diffuser frames (12) are arranged at the positions of a plurality of water outlets, and the horizontal distance between the two side edges of a plurality of diffuser frames (12) gradually expands towards the middle part of net bag (2).
5. The scalable measurement aquaculture bucket built-in net cage according to claim 1, wherein, The inside one end of fixed sleeve (6) is fixedly installed with spring (13), and the one end of spring (13) is fixedly connected with extrusion sleeve (14).
6. The scalable measurement aquaculture bucket built-in net cage according to claim 5, characterized in that, The inside of fixed sleeve (6) and extrusion sleeve (14) is provided with two slide holes, the inner wall of four slide holes is provided with barb protrusions, and the tips of barb protrusions are opposite to the direction of fixed seat (4).