Eco-friendly benthic seaweed bottom planting device

Abstract

The invention provides an eco-friendly benthic seaweed bottom planting device which comprises a mesh bag, a fixing frame and a water flow adjusting assembly, the mesh bag is bound in the mesh bag, the water flow adjusting assembly extends into the mesh bag, the water flow adjusting assembly comprises a rotating seat, an adjusting rope, a telescopic part, a limiting part and a plurality of water flow adjusting blades, the fixed end of the telescopic part is connected to the fixing frame, and the fixed end of the limiting part is connected to the rotating seat. The rotating seat is rotationally connected to the movable end of the telescopic part, the water flow adjusting blades are connected to the rotating seat at equal intervals in the circumferential direction, one end of the adjusting rope is connected with the rotating seat, the limiting part is connected to the fixing frame, the limiting part is matched with the rotating seat, and the net bag not only effectively blocks invasion of harmful organisms, but also allows algae litters to be naturally discharged and degraded in the environment; the water flow adjusting blades can rotate according to the water flow intensity to promote water in the mesh bag to flow, pollution to the breeding environment due to floating of seabed sediment caused by excessive stirring is avoided, interference of the water flow adjusting assembly to benthic organisms is reduced, the requirement for marine ecological protection is met, and the ecological interaction requirement is met.

Description

Technical Field

[0001] This invention relates to the field of algae cultivation technology, specifically to an eco-friendly benthic seaweed substrate planting device. Background Technology

[0002] With the increasing demand for a balance between global marine ecological protection and resource development, large-scale seaweed farming has shifted from "solely pursuing output" to "coordinating output with eco-friendly practices." Current technologies suffer from the following key drawbacks: Traditional seaweed farming methods include hanging culture, floating raft culture, and net cage culture. With hanging culture and floating raft culture, the algae are exposed to the open environment for a long time, making them susceptible to being eaten by predatory organisms such as small crabs and snails, resulting in low survival rates. At the same time, the residual algae debris can easily cause eutrophication of seawater and increase the risk of ecological disasters such as red tides. Net cage culture has disadvantages such as poor ecological compatibility, insufficient bottom planting stability, and low seaweed survival rate and yield. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an eco-friendly benthic seaweed substrate planting device, thereby solving the problems described above.

[0004] This invention provides an eco-friendly benthic seaweed substrate planting device, comprising a net bag, a fixing frame, and a water flow regulating component. The fixing frame is installed in the seaweed cultivation water area, the net bag is tied inside the net bag, and the water flow regulating component is connected to the fixing frame and extends into the net bag. The water flow regulating component includes a rotating base, an adjusting rope, a telescopic component, a limiting component, and several water flow regulating blades. The fixed end of the telescopic component is connected to the fixing frame, the rotating base is rotatably connected to the movable end of the telescopic component, and several water flow regulating blades are equidistantly connected to the rotating base circumferentially. One end of the adjusting rope is connected to the rotating base, and the adjusting rope is used to adjust the distance between the rotating base and the limiting component. The limiting component is connected to the fixing frame and cooperates with the rotating base to limit the rotating base.

[0005] Preferably, the rotating seat includes an inner rotating seat, an outer rotating seat, and a plurality of guide bodies. The inner rotating seat is rotatably connected to the movable end of the telescopic member. The outer rotating seat is disposed on the outside of the inner rotating seat. The plurality of guide bodies are equidistantly disposed between the inner rotating seat and the outer rotating seat in the circumferential direction. The guide bodies are connected to the inner rotating seat and the outer rotating seat. A guide groove and a limiting groove are provided between adjacent guide bodies. The guide groove and the limiting groove are in communication.

[0006] Preferably, the inner rotating seat is provided with a connecting groove, and a connecting block is provided at the bottom of the connecting groove, and the adjusting rope is connected to the connecting block.

[0007] Preferably, the water flow regulating blade is provided with several protrusions.

[0008] Preferably, the limiting member includes a plurality of limiting rods, one end of which is fixed to the fixing frame.

[0009] Preferably, the fixing frame includes an upper fixing frame and an anchor frame. The anchor frame is fixed to the ground of the seaweed aquaculture water area. The anchor frame is connected to the upper end of the upper fixing frame. The water flow regulating component is installed on the upper fixing frame.

[0010] Preferably, the upper fixing frame includes a fixing seat and a fixing frame, the fixing seat is connected to the fixing frame, the water flow regulating component is detachably connected to the fixing seat, and the fixing frame is connected to the anchor frame.

[0011] Preferably, the anchor frame includes several fixed bases and several anchor columns, with the anchor columns detachably connected to the corresponding fixed bases, and the ends of the anchor columns connected to the upper fixed frame.

[0012] Preferably, the mesh bag is provided with U-shaped zippers on both sides.

[0013] Preferably, the mesh aperture on the bottom and periphery of the mesh bag is 0.4cm to 0.6cm, and the mesh aperture on the top surface of the mesh bag is 0.9cm to 1.1cm.

[0014] Compared with the prior art, the present invention has the following advantages: The net bag is tied to a fixed frame, providing the space needed for the growth of benthic seaweed. It effectively blocks the invasion of predatory organisms and allows algal debris to be naturally discharged and degraded in the environment, significantly reducing the risk of eutrophication and meeting the requirements of marine ecological protection. It also takes into account the needs of ecological interaction. With the help of the water flow regulating component, the water flow regulating blades are rotated by the ocean current, which enhances the exchange capacity of nutrients and avoids the restriction of seaweed growth due to lack of oxygen or nutrients. It ensures the supply of nutrients, improves the survival rate of benthic seaweed, and stabilizes the rotating seat and water flow regulating blades when the ocean current is strong. The rotation of the water flow regulating component can be adjusted according to the strength of the water flow to promote the flow of water in the net bag, thus avoiding excessive agitation that would cause seabed sediment to float and pollute the aquaculture environment, while also reducing the disturbance of the water flow regulating component to benthic organisms.

[0015] By optimizing material selection, the structure of the fixing frame, and the material recycling design, we can ensure the efficient growth of seaweed while minimizing interference with the marine ecosystem, thus precisely meeting the needs of large-scale aquaculture in benthic scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of an eco-friendly benthic seaweed substrate planting device according to the present invention; Figure 2 This is a three-dimensional schematic diagram of an eco-friendly benthic seaweed substrate planting device according to the present invention; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a partial cross-sectional structural diagram of the water flow regulating component of the present invention; Figure 5 This is a partial structural schematic diagram of the water flow regulating component of the present invention; Figure 6 This is a schematic diagram of the three-dimensional mechanism of Example 2; In the diagram, 1. Mesh bag; 2. Fixing frame; 3. Upper fixing frame; 4. Fixing seat; 5. Fixing frame; 6. Anchor frame; 7. Fixing base; 8. Anchor column; 9. Water flow regulating component; 10. Rotating seat; 11. Adjusting rope; 12. Telescopic component; 13. Limiting component; 14. Water flow regulating blade; 15. Inner rotating seat; 16. Outer rotating seat; 17. Guide body; 18. Guide groove; 19. Limiting groove; 20. Connecting groove; 21. Connecting block; 22. Protrusion; 23. U-shaped zipper; 24. Through groove; 25. Limiting rod; 26. Lower fixing frame; 27. Counterweight block. Detailed Implementation

[0018] Example 1 Reference Figures 1 to 5This invention provides an eco-friendly benthic seaweed substrate planting device, comprising a net bag 1, a fixing frame 2, and a water flow regulating component 9. The fixing frame 2 is installed in the seaweed cultivation area and fixed to the seabed to resist the impact of ocean currents. The net bag 1 is tied inside the net bag 1, supporting the net bag 1 and matching the vertical growth space of the benthic seaweed, effectively preventing harmful organisms from eating it. The water flow regulating component 9 is connected to the fixing frame 2 and extends into the net bag 1. The water flow regulating component 9 is rotated by ocean currents, promoting the growth of benthic seaweed. The water flow exchange within the aquaculture space of the net bag 1 ensures nutrient supply. The water flow regulation component 9 includes a rotating base 10, an regulating rope 11, a telescopic component 12, a limiting component 13, and several water flow regulating blades 14. The fixed end of the telescopic component 12 is connected to the fixed frame 2, and the rotating base 10 is rotatably connected to the movable end of the telescopic component 12. Several water flow regulating blades 14 are equidistantly connected to the rotating base 10 along the circumference, facilitating the rotation of the water flow regulating blades 14 by the ocean current, thus promoting water flow exchange within the aquaculture space of the net bag 1. One end of the adjustable rope 11 is connected to the rotating seat 10. The adjustable rope 11 is used to adjust the distance between the rotating seat 10 and the limiting member 13. The limiting member 13 is connected to the fixed frame 2. The limiting member 13 cooperates with the rotating seat 10. The ocean current in the seaweed farming area can be monitored by setting an ocean current meter. When the ocean current is too strong, the adjustable rope 11 is pulled up. The free end of the adjustable rope 11 is wound around the winding device. The winding device is controlled to wind up the adjustable rope 11, retract the telescopic member 12, and drive the rotating seat 10 and several water flow regulating blades. As the rotating seat 10 rises to contact the limiting member 13, the limiting member 13 restricts the rotating seat 10, preventing the rotating seat 10 from driving the several water flow regulating blades 14 to continue rotating, thus reducing interference with benthic organisms. The telescopic member 12 is a hollow telescopic rod, with the free end of the adjusting rope 11 extending through the hollow telescopic rod to its upper end. A counterweight 27 can be connected to the outer periphery of the end of the hollow telescopic rod. After releasing the adjusting rope 11, the hollow telescopic rod can extend and retract downwards, causing the rotating seat 10 and several water flow regulating blades 14 to reset.

[0019] Net bag 1 is tied to frame 2, providing the space needed for the growth of benthic algae. Net bag 1 is a single-layer screen, which effectively blocks the invasion of harmful organisms while allowing algal debris to be naturally discharged and degraded in the environment, significantly reducing the risk of eutrophication and meeting the requirements of marine ecological protection while also considering the needs of ecological interaction. Frame 2 is connected to a water flow regulating component 9 extending into net bag 1. When the current is weak (velocity <0.2m / s), the current drives the water flow regulating blade 14 to rotate, promoting water exchange within the aquaculture space and ensuring nutrient supply. When the current is strong, the regulating rope 11 is pulled upwards. The telescopic component 12 retracts, causing the rotating seat 10 and several water flow regulating blades 14 to move upwards. The rotating seat 10 cooperates with the limiting component 13 to stabilize the rotating seat 10 and several water flow regulating blades 14. Depending on the strength of the water flow, the water flow regulating component 9 can be used to promote the flow of water in the net bag 1, thus avoiding excessive agitation that could cause seabed sediment to float and pollute the aquaculture environment. At the same time, it reduces the interference of the water flow regulating component 9 on benthic organisms. Combined with the adjustable water flow component, it enhances the exchange capacity of nutrients, avoids the restriction of seaweed growth due to lack of oxygen or nutrients, and improves the survival rate of benthic seaweed cultivation.

[0020] The rotating seat 10 includes an inner rotating seat 1510, an outer rotating seat 1610, and a plurality of guide bodies 17. The inner rotating seat 1510 is rotatably connected to the movable end of the telescopic member 12. The diameter of the counterweight 27 is less than or equal to the diameter of the inner rotating seat 1510. The outer rotating seat 1610 is disposed on the outside of the inner rotating seat 1510. The plurality of guide bodies 17 are equidistantly disposed between the inner rotating seat 1510 and the outer rotating seat 1610 along the circumferential direction. The guide bodies 17 are connected to the inner rotating seat 1510 and the outer rotating seat 1610. A guide groove 18 and a limiting groove 19 are provided between adjacent guide bodies 17. The guide groove 18 and the limiting groove 19 are in communication.

[0021] The inner rotating seat 1510 is provided with a connecting groove 20, and a connecting block 21 is provided at the bottom of the connecting groove 20. The adjusting rope 11 is connected to the connecting block 21.

[0022] The water flow regulating blade 14 is provided with a number of protrusions 22. The addition of a "micron-level protrusion array 22" to the surface of the arc-shaped water flow regulating blade 14 increases the water flow adhesion, improves the rotational torque, and enhances the water flow exchange efficiency. On the other hand, it can destroy the adsorption structure of attached organisms and reduce biological attachment.

[0023] The limiting member 13 includes a plurality of limiting rods 25, one end of which is fixed to the fixing frame 2.

[0024] The adjusting rope 11 pulls the rotating seat 10 upward. When the guiding body 17 on the rotating seat 10 contacts the limiting rod 25, the end of the limiting rod 25 acts on the guiding body 17. Under the action of the guiding body 17, the rotating seat 10 rotates, causing the limiting rod 25 to extend along the guiding groove 18 into the limiting groove 19. The number of limiting rods 25 is the same as the number of guiding grooves 18. The cooperation of several limiting rods 25 and several limiting grooves 19 limits the rotating seat 10 to prevent the water flow regulating blade 14 from continuing to rotate when the water flow is too large.

[0025] Embodiment 2 See Figure 1 and Figure 6 In this embodiment, the difference from Embodiment 1 is that the fixing frame 2 includes an upper fixing frame 3 and an anchor frame 6. The anchor frame 6 is fixed to the ground of the seaweed cultivation water area. The anchor frame 6 is connected to the upper end of the upper fixing frame 3. The water flow regulating component 9 is installed on the upper fixing frame 3. The upper fixing frame 3 includes a fixing seat 4 and a fixing frame 5. The fixing seat 4 is connected to the fixing frame 5. The water flow regulating component 9 is detachably connected to the fixing seat 4. Among them, the fixing seat 4 is provided with a through groove 24 through which the adjusting rope 11 can pass. The fixing frame 5 is connected to the anchor frame 6. The anchor frame 6 includes several fixing bases 7 and several anchor posts 8. Several anchor posts 8 are detachably connected to the corresponding fixing bases 7. The ends of several anchor posts 8 are connected to the upper fixing frame 3. The weight of a single fixing base 7 is 4 kg, which is suitable for a rocky seabed. The anchor posts 8 are threadedly connected to the fixing bases 7, which is convenient for transportation and assembly. The anchor frame 6 is fixed to the seabed to resist the impact of ocean currents and reduce the problem that the equipment is prone to displacement, providing a continuous and stable growth environment for benthic seaweeds.

[0026] The fixing frame 2 is made of a composite material of biodegradable polylactic acid (PLA) and basalt fiber. The degradation period of the composite material matches the seaweed cultivation period. After the material degrades, it can naturally integrate into the seabed without damaging the benthic ecological structure and avoiding residual pollution after the cultivation ends. Among them, to improve the stability of the net bag 1 tied to the fixing frame 2 and the stability of the space supported by the net bag 1, a lower fixing frame 26 connected to the anchor frame 6 can be set below the upper fixing frame 3. The lower fixing frame 26 is in the shape of a "day". The fixing frame 5 and the lower fixing frame 26 distributed in the shape of a "day" can improve the stability of the equipment, effectively prevent the equipment from deforming, and take into account both structural strength and ecological compatibility. The fixing frame 2 adopts a splicing design, with a small volume and light weight, which is convenient for transportation and on-site assembly.

[0027] The upper edge of the net bag 1 is tied to the upper fixing frame 3 through a biodegradable rope, the lower edge is tied to the lower fixing frame 26, and the side edges are tied to the anchor frame 6.

[0028] The net bag 1 is equipped with U-shaped zippers 23 on both sides. The U-shaped biodegradable zipper serves as the opening and closing mechanism. The zipper body is made of PLA / PCL blend material and coated with a biodegradable and wear-resistant coating of natural beeswax derivatives. It is resistant to seawater immersion, which improves its lifespan. It can also degrade synchronously with the equipment. The bidirectional opening design allows it to be opened from both ends, improving the efficiency of benthic seaweed seedling placement. Harvesting can be carried out simultaneously from both sides, reducing the difficulty of seedling placement, seaweed harvesting, and cleaning of the net bag 1, reducing labor costs, adapting to the operational needs of large-scale aquaculture, and significantly reducing seaweed damage.

[0029] The mesh size of the bottom and circumferential surfaces of the mesh bag 1 is 0.4cm to 0.6cm, and the mesh size of the top surface of the mesh bag 1 is 0.9cm to 1.1cm.

[0030] The mesh bag 1 is made of a single layer of biodegradable polyester woven mesh bag. Based on the dual objectives of "protection + ecological interaction", the mesh size is designed with the following parameters: the mesh size on the top surface of the mesh bag 1 is preferably 1 cm to facilitate air exchange, and the mesh size on the bottom surface and the perimeter of the mesh bag 1 is preferably 0.5 cm. This mesh size can block harmful organisms (such as small crabs and snails) ≥0.5 cm from eating the food, while allowing plankton ≤0.5 cm, nutrients and symbiotic organisms of seaweed to pass through, ensuring the ecological interaction required for seaweed growth. Algal litter can be naturally discharged and degraded, greatly reducing the risk of eutrophication of seawater and fully meeting the requirements of marine ecological protection.

[0031] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. An eco-friendly benthic seaweed substrate planting device, characterized in that; The utility model provides a seaweed cultivation device, which comprises a net bag, a fixing frame and a water flow adjusting assembly, the fixing frame is installed in seaweed cultivation water area, the net bag is tied in the net bag, the water flow adjusting assembly is connected to the fixing frame, the water flow adjusting assembly extends into the net bag, the water flow adjusting assembly comprises a rotating seat, an adjusting rope, an extension piece, a limiting piece and a plurality of water flow adjusting leaves, the fixed end of the extension piece is connected to the fixing frame, the rotating seat is rotationally connected to the movable end of the extension piece, a plurality of water flow adjusting leaves are connected to the rotating seat at equal intervals in the circumferential direction, one end of the adjusting rope is connected to the rotating seat, the adjusting rope is used for adjusting the distance between the rotating seat and the limiting piece, the limiting piece is connected to the fixing frame, and the limiting piece cooperates with the rotating seat to limit the rotating seat.

2. An eco-friendly benthic seaweed farming apparatus according to claim 1, wherein: The rotating seat comprises an inner rotating seat, an outer rotating seat and a plurality of guide bodies, the inner rotating seat is rotationally connected to the movable end of the extension piece, the outer rotating seat is arranged outside the inner rotating seat, a plurality of guide bodies are arranged at equal intervals between the inner rotating seat and the outer rotating seat in the circumferential direction, the guide bodies are connected to the inner rotating seat and the outer rotating seat, and a guide groove and a limiting groove are arranged between adjacent guide bodies and are in communication.

3. An eco-friendly benthic seaweed farming apparatus according to claim 2, wherein; A connecting groove is arranged on the inner rotating seat, a connecting block is arranged at the bottom of the connecting groove, and the adjusting rope is connected to the connecting block.

4. An eco-friendly benthic seaweed farming apparatus according to claim 1, wherein: A plurality of protrusions are arranged on the water flow adjusting leaves.

5. An eco-friendly benthic seaweed farming apparatus according to claim 1, wherein: The limiting piece comprises a plurality of limiting rods, and one end of each limiting rod is fixed to the fixing frame.

6. An eco-friendly benthic seaweed farming apparatus according to claim 1, wherein: The fixing frame comprises an upper fixing frame and an anchor frame, the anchor frame is fixed to the ground of seaweed cultivation water area, the anchor frame is connected to the upper end of the upper fixing frame, and the water flow adjusting assembly is installed on the upper fixing frame.

7. An eco-friendly benthic seaweed farming apparatus according to claim 6, wherein: The upper fixing frame comprises a fixing seat and a fixing frame, the fixing seat is connected to the fixing frame, the water flow adjusting assembly is detachably connected to the fixing seat, and the fixing frame is connected to the anchor frame.

8. An eco-friendly benthic seaweed farming apparatus according to claim 6, wherein: The anchor frame comprises a plurality of fixing bases and a plurality of anchor columns, each anchor column is detachably connected to the corresponding fixing base, and the end of each anchor column is connected to the upper fixing frame.

9. An eco-friendly benthic seaweed farming apparatus according to claim 1, wherein: U-shaped zippers are arranged on the two sides of the net bag.

10. An eco-friendly benthic seaweed farming apparatus according to claim 1, characterized in that: The mesh aperture of the lower bottom surface and the peripheral surface of the net bag is 0.4cm-0.6cm, and the mesh aperture of the upper bottom surface of the net bag is 0.9cm-1.1cm.

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